Impact of Antecedent Factors on Collaborative Technologies Usage among Academic Researchers in Malaysian Research Universities

ERIC Educational Resources Information Center

Mohd Daud, Norzaidi; Zakaria, Halimi

2017-01-01

Purpose: The purpose of this paper is to investigate the impact of antecedent factors on collaborative technologies usage among academic researchers in Malaysian research universities. Design/methodology/approach: Data analysis was conducted on data collected from 156 academic researchers from five Malaysian research universities. This study…

National PTA Gets Connected with Social Media

ERIC Educational Resources Information Center

Phillips, Derek

2011-01-01

People are busy, we all know that. Getting their attention is harder and harder all the time. That's especially true for member organizations and advocacy groups. The National PTA is both and has adapted some social media practices to reach out and maintain contact with more than 5 million volunteers in 25,000 local units. James Martinez, senior…

PTA of supra-aortic arteries with temporary balloon occlusion to avoid distal embolism.

PubMed

Koike, T; Minakawa, T; Abe, H; Takeuchi, S; Sasaki, O; Nishimaki, K; Tanaka, R

1992-03-01

Percutaneous transluminal angioplasty (PTA) was carried out in eight patients with cervical arterial stenosis; six in the subclavian and brachiocephalic arteries (5 with subclavian steal syndrome), one in the common carotid artery, and one in both the brachiocephalic and common carotid arteries (with subclavian steal syndrome). The PTA balloon catheters were introduced via the femoral artery in seven and brachial artery in one. To prevent distal embolization through the vertebral and internal carotid arteries, the blood flow in these vessels was temporarily occluded with a balloon catheter. The dilation of the stenotic areas was generally satisfactory. Antegrade blood flow was promptly obtained in the vertebral artery even in patients with subclavian steal syndrome. In all patients, the clinical symptoms improved. Two patients underwent repeat PTA because of restenosis.

Corbell PTA's Wild Walk: Fundraiser Cultivates Community

ERIC Educational Resources Information Center

Cassano, Michelle

2012-01-01

When Corbell Elementary opened its doors in 2006 in Frisco, Texas, its newly formed PTA faced the challenge of implementing a productive fundraiser to get the school off to a great start. The new board chose to focus its efforts on a single fundraiser, rather than a series of smaller ones. They wanted to avoid having the children selling any kind…

Factors influencing Agrobacterium-mediated embryogenic callus transformation of Valencia sweet orange (Citrus sinensis) containing the pTA29-barnase gene.

PubMed

Li, D D; Shi, W; Deng, X X

2003-12-01

Valencia sweet orange (Citrus sinensis (L.) Osbeck) calluses were used as explants to develop a new transformation system for citrus mediated by Agrobacterium tumefaciens. Factors affecting Agrobacterium-mediated transformation efficiency included mode of pre-cultivation, temperature of cocultivation and presence of acetosyringone (AS). The highest transformation efficiency was obtained with a 4-day pre-cultivation period in liquid medium. Transformation efficiency was higher when cocultivation was performed for 3 days at 19 degrees C than at 23 or 28 degrees C. Almost no resistant callus was obtained if the cocultivation medium lacked AS. The transformation procedure yielded transgenic Valencia plants containing the pTA29-barnase gene, as verified by PCR amplification and confirmed by Southern blotting. Because male sterility is a common factor leading to seedlessness in citrus cultivars with parthenocarpic characteristics, production of seedless citrus genotypes by Agrobacterium-mediated genetic transformation is a promising alternative to conventional breeding methods.

Developmental and seasonal expression of PtaHB1, a Populus gene encoding a class III HD-Zip protein, is closely associated with secondary growth and inversely correlated with the level of microRNA (miR166).

PubMed

Ko, Jae-Heung; Prassinos, Constantinos; Han, Kyung-Hwan

2006-01-01

In contrast to our knowledge of the shoot apical meristem, our understanding of cambium meristem differentiation and maintenance is limited. Class III homeodomain leucine-zipper (HD-Zip) proteins have been shown to play a regulatory role in vascular differentiation. The hybrid aspen (Populus tremulaxPopulus alba) class III HD-Zip transcription factor (PtaHB1) and microRNA 166 (Pta-miR166) family were cloned from hybrid aspen using a combination of in silico and polymerase chain reaction methods. Expression analyses of PtaHB1 and Pta-miR166 were performed by Northern blot analysis. The expression of PtaHB1 was closely associated with wood formation and regulated both developmentally and seasonally, with the highest expression during the active growing season. Also, its expression was inversely correlated with the level of Pta-miR166. Pta-miR166-directed cleavage of PtaHB1 in vivo was confirmed using modified 5'-rapid amplification of cDNA ends (RACE). The expression of Pta-miR166 was much higher in the winter than in the growing seasons, suggesting seasonal and developmental regulation of microRNA in this perennial plant species.

The relationship between agitation and impairments of orientation and memory during the PTA period after traumatic brain injury.

PubMed

McKay, Adam; Love, Jasmine; Trevena-Peters, Jessica; Gracey, Jacinta; Ponsford, Jennie

2018-06-03

Agitation is common during the post-traumatic amnesia (PTA) period after traumatic brain injury (TBI), although our knowledge of what causes or predicts agitation is limited. The current study aimed to examine the association of agitation in PTA with the concurrent impairments in orientation and memory while controlling for covariates of agitation. Participants were 125 patients in PTA following moderate to extremely severe TBI recruited from an inpatient brain injury rehabilitation service who were assessed throughout PTA on the Agitated Behavior Scale (ABS) and the Westmead PTA Scale (WPTAS). Agitation was observed in 42.4% of participants (ABS score > 21), with disinhibited behaviours (e.g., distractibility and impulsivity) most common. Multilevel modelling found daily ABS scores to be associated with daily scores on the WPTAS but in a non-linear pattern. Analysis of covariates found that shorter time post-admission, younger age, presence of infection and higher antipsychotic doses were associated with higher ABS scores. These results support a relationship between agitation and the concurrent cognitive impairment during PTA. While a causal link cannot yet be inferred, management strategies that can potentially interfere with cognition (e.g., sedating medications, environmental changes) should be used cautiously in case they exacerbate agitation.

Antecedent influences on behavior disorders.

PubMed Central

Smith, R G; Iwata, B A

1997-01-01

The influence of antecedent events on behavior disorders has been relatively understudied by applied behavior analysts. This lack of research may be due to a focus on consequences as determinants of behavior and a historical disagreement on a conceptual framework for describing and interpreting antecedent variables. We suggest that antecedent influences can be described using terms derived from basic behavioral principles and that their functional properties can be adequately interpreted as discriminative and establishing operations. A set of studies on assessment and treatment of behavior disorders was selected for review based on their relevance to the topic of antecedent events. These studies were categorized as focusing on assessment of antecedent events, antecedent treatments for behavior disorders maintained by either positive or negative reinforcement, and special cases of antecedent events in behavior disorders. Some directions for future research on antecedent influences in the analysis and treatment of behavior disorders are discussed. PMID:9210312

Neointimal Hyperplasia after Silverhawk Atherectomy versus Percutaneous Transluminal Angioplasty (PTA) in Femoropopliteal Stent Reobstructions: A Controlled, Randomized Pilot Trial

DOE Office of Scientific and Technical Information (OSTI.GOV)

Brodmann, Marianne, E-mail: marianne.brodmann@medunigraz.at; Rief, Peter; Froehlich, Harald

2013-02-15

Due to intimal hyperplasia instent reobstruction in the femoropopliteal arterial segment is still an unsolved problem. Different techniques have been discussed in case of reintervention to guarantee longlasting patency rate. We conducted a randomized, controlled, pilot trial comparing Silverhawk atherectomy with percutaneous transluminal angioplasty (PTA) in patients with a first instent reobstruction in the femoropopliteal arterial segment, to evaluate intima media thickness (IMT) within the treated segment, as a parameter of recurrence of intimal hyperplasia. In a total 19 patients were included: 9 patients in the atherectomy device and 10 patients in the PTA arm. IMT within the treated segmentmore » was statistically significantly elevated in all patients treated with the Silverhawk device versus the patients treated with PTA. The obvious differentiation in elevation of IMT in nonfavor for patients treated with the Silverhawk device started at month 2 (max IMT SH 0.178 mm vs. IMT PTA 0.1 mm, p = 0.001) with a spike at month 5 (max IMT SH 0.206 mm vs. IMT PTA 0.145 mm, p = 0.003) and a decline once again at month 6 (max IMT SH 0.177 mm vs. IMT PTA 0.121 mm, p = 0.02). The values for mean IMT performed the same way. Although Silverhawk atherectomy provides good results at first sight, in the midterm follow-up of treatment of first instent restenosis it did not perform better than PTA as it showed elevated reoccurrence of intimal media hyperplasia.« less

Hypoxic-ischemic encephalopathy in preterm infants: antecedent factors, brain imaging, and outcome.

PubMed

Logitharajah, Pavithra; Rutherford, Mary A; Cowan, Frances M

2009-08-01

Our objectives were to establish antecedent factors and patterns of brain injury and their prognostic value in preterm infants with hypoxic-ischemic encephalopathy (HIE). Essential inclusion criteria were gestation (GA) < or =36 wk, Apgar scores <5/<7 at 1/5 min, major resuscitation at birth, and a brain MRI <6 postnatal wk. At least one additional criterion was required of the following: abnormal intrapartum CTG, sentinel event, meconium, cord pH <7.0, neonatal seizures, and multiorgan failure. Antenatal and perinatal data and > or =2 y neurodevelopmental outcome were documented. Fifty-five infants (GA 26-36; median, 35 wk) were eligible; all had 1-6 (median, 3) additional criteria. Placental abruption was the commonest identifiable antecedent event. Evidence of infection was not prominent. Main sites of injury were basal ganglia (BG, 75%), mostly severe, white matter (WM, 89%), mostly mild, brainstem (44%), and cortex (58%). Brainstem injury was associated with severe BG, WM, and cortical injury. Two-year outcome: death (32%), cerebral palsy (26%, mostly severe quadriplegia), mild impairment (10%), and normal (32%). Significant central gray matter and brainstem injury was found in many preterm infants with HIE. Neonatal MRI findings allowed accurate prediction of neurodevelopmental outcome. Early MRI is feasible and a valuable tool in this poorly reported group of infants.

Hydroprocessing of Jatropha Oil for Production of Green Diesel over Non-sulfided Ni-PTA/Al2O3 Catalyst

PubMed Central

Liu, Jing; Lei, Jiandu; He, Jing; Deng, Lihong; Wang, Luying; Fan, Kai; Rong, Long

2015-01-01

The non-sulfided Ni-PTA/Al2O3 catalyst was developed to produce green diesel from the hydroprocessing of Jatropha oil. The Ni-PTA/Al2O3 catalyst was prepared by one-pot synthesis of Ni/Al2O3 with the co-precipitation method and then impregnanting Ni/Al2O3 with PTA solution. The catalysts were characterized with BET, SEM-EDX, TEM, XRD, XPS, TGA and NH3-TPD. The Ni and W species of the Ni-PTA/Al2O3 catalyst were much more homogeneously distributed on the surface than that of commercial Al2O3. Catalytic performance in the hydroprocessing of Jatropha oil was evaluated by GC. The maximum conversion of Jatropha oil (98.5 wt%) and selectivity of the C15-C18 alkanes fraction (84.5 wt %) occurred at 360 °C, 3.0 MPa, 0.8 h−1. The non-sulfided Ni-PTA/Al2O3 catalyst is more environmentally friendly than the conventional sulfided hydroprocessing catalyst, and it exhibited the highest catalytic activity than the Ni-PTA catalyst supported with commercial Al2O3 grain and Al2O3 powder. PMID:26162092

Neointimal hyperplasia after silverhawk atherectomy versus percutaneous transluminal angioplasty (PTA) in femoropopliteal stent reobstructions: a controlled, randomized pilot trial.

PubMed

Brodmann, Marianne; Rief, Peter; Froehlich, Harald; Dorr, Andreas; Gary, Thomas; Eller, Philipp; Hafner, Franz; Deutschmann, Hannes; Seinost, Gerald; Pilger, Ernst

2013-02-01

Due to intimal hyperplasia instent reobstruction in the femoropopliteal arterial segment is still an unsolved problem. Different techniques have been discussed in case of reintervention to guarantee longlasting patency rate. We conducted a randomized, controlled, pilot trial comparing Silverhawk atherectomy with percutaneous transluminal angioplasty (PTA) in patients with a first instent reobstruction in the femoropopliteal arterial segment, to evaluate intima media thickness (IMT) within the treated segment, as a parameter of recurrence of intimal hyperplasia. In a total 19 patients were included: 9 patients in the atherectomy device and 10 patients in the PTA arm. IMT within the treated segment was statistically significantly elevated in all patients treated with the Silverhawk device versus the patients treated with PTA. The obvious differentiation in elevation of IMT in nonfavor for patients treated with the Silverhawk device started at month 2 (max IMT SH 0.178 mm vs. IMT PTA 0.1 mm, p = 0.001) with a spike at month 5 (max IMT SH 0.206 mm vs. IMT PTA 0.145 mm, p = 0.003) and a decline once again at month 6 (max IMT SH 0.177 mm vs. IMT PTA 0.121 mm, p = 0.02). The values for mean IMT performed the same way. Although Silverhawk atherectomy provides good results at first sight, in the midterm follow-up of treatment of first instent restenosis it did not perform better than PTA as it showed elevated reoccurrence of intimal media hyperplasia.

Antecedent Factors Affecting Academic Performance of Graduate Students at the Nairobi Evangelical Graduate School of Theology

ERIC Educational Resources Information Center

Mbogo, Rosemary Wahu

2016-01-01

This paper reports the findings of a Master's level thesis work that was done in 1997 to assess the antecedent factors affecting the academic performance of graduate students at the Nairobi Evangelical School of Theology (N.E.G.S.T.), which is currently Africa International University (AIU). The paper reviews the effect of lack of finance on…

A new physically-based model considered antecedent rainfall for shallow landslide

NASA Astrophysics Data System (ADS)

Luo, Yu; He, Siming

2017-04-01

Rainfall is the most significant factor to cause landslide especially shallow landslide. In previous studies, rainfall intensity and duration are take part in the physically based model to determining the occurrence of the rainfall-induced landslides, but seldom considered the antecedent rainfall. In this study, antecedent rainfall is took into account to derive a new physically based model for shallow landslides prone area predicting at the basin scale. Based on the Rosso's equation of seepage flow considering the antecedent rainfall to construct the hillslope hydrology model. And then, the infinite slope stability theory is using to construct the slope stability model. At last, the model is apply in the Baisha river basin of Chengdu, Sichuan, China, and the results are compared with the one's from unconsidered antecedent rainfall. The results show that the model is simple, but has the capability of consider antecedent rainfall in the triggering mechanism of shallow landslide. Meanwhile, antecedent rainfall can make an obvious effect on shallow landslides, so in shallow landslide hazard assessment, the influence of the antecedent rainfall can't be ignored.

A Five-Factor Model framework for understanding childhood personality disorder antecedents.

PubMed

De Clercq, Barbara; De Fruyt, Filip

2012-12-01

The present contribution reviews evidence that supports the relevance of childhood antecedents of personality disorders, and advocates that the validity of a Five-Factor Model framework for describing general trait differences in childhood can be extended towards the field of developmental personality difficulties. In addition, we suggest that several traditional childhood Axis I conditions include a substantial trait component that may be responsible for the recurring finding that childhood Axis I disorders are predictive for adult Axis II disorders. Given the valuable information provided by a trait assessment, we further propose to integrate dimensional personality and personality pathology measures as standard tools in mental health assessments at a young age. © 2012 The Authors. Journal of Personality © 2012, Wiley Periodicals, Inc.

Trust in health information websites: A systematic literature review on the antecedents of trust.

PubMed

Kim, Yeolib

2016-06-01

Health websites are important sources of information for consumers. In choosing websites, trust in websites largely determines which website to access and how to best utilize the information. Thus, it is critical to understand why consumers trust certain websites and distrust others. A systematic literature review was conducted with the goal of identifying the antecedents of trust in health information websites. After four rounds of screening process, 20 articles between 2000 and 2013 were harvested. Factors that determine trust are classified into individual difference antecedents, website-related antecedents, and consumer-to-website interaction-related antecedents. The most frequently studied antecedents were socio-demographics, information quality, appearance, and perceived reputation of the website. Each antecedent of trust are discussed in detail and future research directions are proposed. © The Author(s) 2014.

[Effect of antecedent dry period on water quality of urban storm runoff pollution].

PubMed

Bian, Bo

2009-12-01

Identified the main factor influencing urban rainfall-runoff pollution provides a scientific basis for urban rainfall-runoff pollution control and management. Therefore, starting in May 2006, a study was conducted to characterize water quality from representative land uses types in Zhenjiang to analyse the effect of antecedent dry period on stormwater runoff quality. The results show that the beginning of rainfall, with the increase of antecedent dry periods, the percentages of less than 40 microm is increased, the correlation of the water quality parameters (TN, TP, Zn, Pb, Cu, TSS and COD) and antecedent dry period shows a significant positive correlation, dissolved pollutants in the initial period surface runoff is increased. These findings show that facilitating the recognition of antecedent dry periods is the main factor influencing the change in concentration and partitioning of pollutants to provide the scientific basis for non-point source pollution control and management.

The periplasmic transaminase PtaA of Pseudomonas fluorescens converts the glutamic acid residue at the pyoverdine fluorophore to α-ketoglutaric acid.

PubMed

Ringel, Michael T; Dräger, Gerald; Brüser, Thomas

2017-11-10

The periplasmic conversion of ferribactin to pyoverdine is essential for siderophore biogenesis in fluorescent pseudomonads, such as pathogenic Pseudomonas aeruginosa or plant growth-promoting Pseudomonas fluorescens The non-ribosomal peptide ferribactin undergoes cyclizations and oxidations that result in the fluorophore, and a strictly conserved fluorophore-bound glutamic acid residue is converted to a range of variants, including succinamide, succinic acid, and α-ketoglutaric acid residues. We recently discovered that the pyridoxal phosphate-containing enzyme PvdN is responsible for the generation of the succinamide, which can be hydrolyzed to succinic acid. Based on this, a distinct unknown enzyme was postulated to be responsible for the conversion of the glutamic acid to α-ketoglutaric acid. Here we report the identification and characterization of this enzyme in P. fluorescens strain A506. In silico analyses indicated a periplasmic transaminase in fluorescent pseudomonads and other proteobacteria that we termed PtaA for " p eriplasmic t ransaminase A " An in-frame-deleted ptaA mutant selectively lacked the α-ketoglutaric acid form of pyoverdine, and recombinant PtaA complemented this phenotype. The ptaA / pvdN double mutant produced exclusively the glutamic acid form of pyoverdine. PtaA is homodimeric and contains a pyridoxal phosphate cofactor. Mutation of the active-site lysine abolished PtaA activity and affected folding as well as Tat-dependent transport of the enzyme. In pseudomonads, the occurrence of ptaA correlates with the occurrence of α-ketoglutaric acid forms of pyoverdines. As this enzyme is not restricted to pyoverdine-producing bacteria, its catalysis of periplasmic transaminations is most likely a general tool for specific biosynthetic pathways. © 2017 by The American Society for Biochemistry and Molecular Biology, Inc.

Antecedent Moisture and Biological Inertia as Predictors of Plant and Ecosystem Productivity in Arid and Semiarid Systems

NASA Astrophysics Data System (ADS)

Ogle, K.

2011-12-01

Many plant and ecosystem processes in arid and semiarid systems may be affected by antecedent environmental conditions (e.g., precipitation patterns, soil water availability, temperature) that integrate over past days, weeks, months, seasons, or years. However, the importance of such antecedent exogenous effects relative to conditions occurring at the time of the observed process is relatively unexplored. Even less is known about the potential importance of antecedent endogenous effects that describe the influence of past ecosystem states on the current ecosystem state; e.g., how is current ecosystem productivity related to past productivity patterns? We hypothesize that incorporation of antecedent exogenous and endogenous factors can improve our predictive understanding of many plant and ecosystem processes, especially in arid and semiarid ecosystems. Furthermore, the common approach to quantifying the effects of antecedent (exogenous) variables relies on arbitrary, deterministic definitions of antecedent variables that (1) may not accurately describe the role of antecedent conditions and (2) ignore uncertainty associated with applying deterministic definitions. In this study, we employ a stochastic framework for (1) computing the antecedent variables that estimates the relative importance of conditions experienced each time unit into the past, also providing insight into potential lag responses, and (2) estimating the effect of antecedent factors on the response variable of interest. We employ this approach to explore the potential roles of antecedent exogenous and endogenous influences in three settings that illustrate the: (1) importance of antecedent precipitation for net primary productivity in the shortgrass steppe in northern Colorado, (2) dependency of tree growth on antecedent precipitation and past growth states for pinyon growing in western Colorado, and (3) influence of antecedent soil water and prior root status on observed root growth in the Mojave

Propfan Test Assessment (PTA): Flight test report

NASA Technical Reports Server (NTRS)

Little, B. H.; Bartel, H. W.; Reddy, N. N.; Swift, G.; Withers, C. C.; Brown, P. C.

1989-01-01

The Propfan Test Assessment (PTA) aircraft was flown to obtain glade stress and noise data for a 2.74m (9 ft.) diameter single rotation propfan. Tests were performed at Mach numbers to 0.85 and altitudes to 12,192m (40,000 ft.). The propfan was well-behaved structurally over the entire flight envelope, demonstrating that the blade design technology was completely adequate. Noise data were characterized by strong signals at blade passage frequency and up to 10 harmonics. Cabin noise was not so high as to preclude attainment of comfortable levels with suitable wall treatment. Community noise was not excessive.

Paclitaxel-Coated Balloon in Infrapopliteal Arteries: 12-Month Results From the BIOLUX P-II Randomized Trial (BIOTRONIK'S-First in Man study of the Passeo-18 LUX drug releasing PTA Balloon Catheter vs. the uncoated Passeo-18 PTA balloon catheter in subjects requiring revascularization of infrapopliteal arteries).

PubMed

Zeller, Thomas; Beschorner, Ulrich; Pilger, Ernst; Bosiers, Marc; Deloose, Koen; Peeters, Patrick; Scheinert, Dierk; Schulte, Karl-Ludwig; Rastan, Aljoscha; Brodmann, Marianne

2015-10-01

The aim of BIOLUX P-II (BIOTRONIK'S-First in Man study of the Passeo-18 LUX drug releasing PTA Balloon Catheter vs. the uncoated Passeo-18 PTA balloon catheter in subjects requiring revascularization of infrapopliteal arteries) trial was to compare the safety and efficacy of a novel paclitaxel-coated drug-eluting balloon (DEB) versus an uncoated balloon (percutaneous transluminal angioplasty [PTA]) in de novo or native restenotic lesions of the infrapopliteal arteries in patients with claudication and critical limb ischemia. DEB have shown promising results in femoropopliteal lesions, but data for infrapopliteal lesions are scarce. In this prospective, multicenter, randomized first-in-man study, 72 patients were randomized 1:1 to either a Passeo-18 Lux DEB (Biotronik AG, Buelach, Switzerland) (n = 36) or Passeo-18 PTA (n = 36). Follow-up assessments were scheduled at 1, 6, and 12 months, with angiographic assessment at 6 months. Adverse events were adjudicated by an independent clinical events committee, and angiographic parameters were assessed by an independent core laboratory. The primary safety endpoint (a composite of all-cause mortality, target extremity major amputation, target lesion thrombosis, and target vessel revascularization at 30 days) was 0% in the DEB group versus 8.3% in the PTA group (p = 0.239). The primary performance endpoint (patency loss at 6 months) was 17.1% in the DEB group versus 26.1% in the PTA group (p = 0.298), and major amputations of the target extremity occurred in 3.3% versus 5.6% of the patients at 12 months, respectively. The Passeo-18 Lux DEB has been proven to be safe and effective in infrapopliteal lesions with comparable outcomes to PTA. Copyright © 2015 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.

Constructing an integrated model of the antecedents of adolescent smoking.

PubMed

Wilkinson, Dawn; Abraham, Charles

2004-09-01

Reviews have called for integrative, theoretically informed models of the 'hundreds of associations' (Miller & Slap, 1989, p. 131) between psychosocial measures and adolescent smoking (e. g. Tyas & Pederson, 1998). Such a model was tested. A prospective, classroom-based survey measuring previously identified correlates of smoking allowed comparison of the strength of relationships between antecedents and smoking status six months later. The prospective sample included 225 13 to 14-year-olds. Measures of behaviour-specific cognitions derived from the Theory of Planned Behaviour (TPB)-as well as personality, self-esteem, parental support and parental control, sociodemographic factors, and descriptive norms-were included. Relationships between antecedents were explored using path analyses. High initial rates of smoking were observed. Of the variance in smoking six months later, 56% was explained by seven direct predictors: intention, perceived ease of smoking, estimated number of friends smoking, percentage of older brothers smoking, self-esteem, extraversion and car access. Results emphasize the importance of behaviour-specific cognitions specified by the TPB but suggest that other factors, including extraversion and self-esteem, need to be included in models of the antecedents of smoking. The findings also imply that some antecedents, such as parental support, may indirectly influence adolescent smoking through their effect on other variables.

Antecedents of Young Women's Sexual Risk Taking in Tourist Experiences.

PubMed

Berdychevsky, Liza

2015-11-17

The purpose of this phenomenological exploration was to shed light on the constellation of factors anteceding young women's sexual risk taking during their tourist experiences. A total of 15 in-depth interviews (1.5 to 2.5 hours each) with 13 women were conducted and analyzed through the lens of transcendental phenomenology. An analysis of antecedent factors revealed a confluence of sociopersonal characteristics (e.g., sexual definitions, attitudes, double standards, and age) and touristic attributes (e.g., the sense of temporariness/ephemerality, anonymity, and fun-oriented mentality depending on length, destination, and type of tourist experience) that underlie women's proclivity for and perceptions of sexual risk taking in certain travel scenarios. These result in myriad effects on physical, sexual health, sociocultural, mental, and emotional aspects of women's health and well-being. While the sociopersonal antecedents highlight the cross-pollination between sex-related perceptions in everyday life and touristic environments, the touristic antecedents emphasize the uniqueness of tourist experiences as the contexts for sexual risk taking. The findings address an underresearched topic in sex and tourism scholarship and offer implications for health education and intervention programs, pointing to the value of constructing the context-specific and gender-sensitive sexual health messages underpinned by the ideas of women's empowerment and sexual agency.

Solid lipid nanoparticles for the delivery of 1,3,5-triaza-7-phosphaadamantane (PTA) platinum (II) carboxylates.

PubMed

Sguizzato, Maddalena; Cortesi, Rita; Gallerani, Eleonora; Drechsler, Markus; Marvelli, Lorenza; Mariani, Paolo; Carducci, Federica; Gavioli, Riccardo; Esposito, Elisabetta; Bergamini, Paola

2017-05-01

The use of solid lipid nanoparticles (SLN) is a promising route for the delivery of platinum complexes aimed to anticancer activity. This paper describes the production and characterization of SLN suitable for the loading of Pt complexes containing the biocompatible phosphine 1,3,5-triaza-7-phosphaadamantane (PTA) as neutral ligand. After a screening of several lipidic phases, stearic acid-based SLN were identified as the most appropriate for the purpose. They were produced by emulsion-dilution method and then characterized in terms of dimension, polydispersity, time stability, pH balance and morphological aspect. Stearic acid SLN are designed as a system able to coordinate to platinum, acting as anionic carboxylic ligands, replacing the base carbonate of the Pt synthon [PtCO 3 (DMSO) 2 ], where also DMSO can subsequently be substituted by phosphinic ligands, namely PTA. SLN functionalised with Pt-PTA were produced and characterized by this synthetic route. The toxicity of plain SLN and the antiproliferative effect of SLN functionalised with Pt-PTA were evaluated on two human cancer cell lines K562 and A2780. The results indicate that SLN can be exploited as a delivery system for Pt complexes with potential anticancer activity. Copyright © 2016 Elsevier B.V. All rights reserved.

A model of psychosocial and cultural antecedents of blood pressure control.

PubMed Central

Bosworth, Hayden B.; Oddone, Eugene Z.

2002-01-01

Hypertension is a major modifiable risk factor for stroke, congestive heart failure, and end-stage renal disease. Hypertension is particularly prevalent and deadly among African Americans. Effective treatment for hypertension has been available for decades, yet only one fourth of all individuals have their blood pressure under control. Despite the potential impact of hypertension, interventions to improve control have had limited success. We present a model of how to understand antecedents of blood pressure control according to three interrelated categories: patient characteristics, social and cultural environment, and medical environment. This theoretical paper was conducted using a literature review and a model to explain psychosocial antecedents of blood pressure control is presented. We conclude that improved understanding of important antecedents of blood pressure control coupled with technological advances, such as tailored interventions, provide clinicians with a tool that may lead to improved blood pressure control. These interventions will require the involvement of clinicians and consideration of sociocultural factors to be successful. PMID:11991336

A Non-sulfided flower-like Ni-PTA Catalyst that Enhances the Hydrotreatment Efficiency of Plant Oil to Produce Green Diesel

PubMed Central

Liu, Jing; Chen, Pan; Deng, Lihong; He, Jing; Wang, Luying; Rong, Long; Lei, Jiandu

2015-01-01

The development of a novel non-sulfided catalyst with high activity for the hydrotreatment processing of plant oils, is of high interest as a way to improve the efficient production of renewable diesel. To attempt to develop such a catalyst, we first synthesized a high activity flower-like Ni-PTA catalyst used in the hydrotreatment processes of plant oils. The obtained catalyst was characterized with SEM, EDX, HRTEM, BET, XRD, H2-TPR, XPS and TGA. A probable formation mechanism of flower-like Ni(OH)2 is proposed on the basis of a range of contrasting experiments. The results of GC showed that the conversion yield of Jatropha oil was 98.95%, and the selectivity of C11-C18 alkanes was 70.93% at 360 °C, 3 MPa, and 15 h−1. The activity of this flower-like Ni-PTA catalyst was more than 15 times higher than those of the conventional Ni-PTA/Al2O3 catalysts. Additionally, the flower-like Ni-PTA catalyst exhibited good stability during the process of plant oil hydrotreatment. PMID:26503896

Antecedents of Norwegian Beginning Teachers' Turnover Intentions

ERIC Educational Resources Information Center

Tiplic, Dijana; Brandmo, Christian; Elstad, Eyvind

2015-01-01

This study aims at exploring several individual, organizational, and contextual factors that may affect beginning teachers' turnover intentions during their first years of practice. The sample consists of 227 beginning teachers (69% female and 31% male) from 133 schools in Norway. The results show four important antecedents of beginning teachers'…

Long-term antecedents and outcomes of perceived control.

PubMed

Infurna, Frank J; Gerstorf, Denis; Ram, Nilam; Schupp, Jürgen; Wagner, Gert G

2011-09-01

Perceived control plays an important role in shaping development throughout adulthood and old age. Using data from the adult lifespan sample of the national German Socio-Economic Panel (SOEP; N > 10,000, covering 25 years of measurement), we explored long-term antecedents, correlates, and outcomes of perceived control and examined if associations differ with age. Targeting correlates and antecedents of control, findings indicated that higher concurrent levels of social participation, life satisfaction, and self-rated health as well as more positive changes in social participation over the preceding 11 years were each predictive of between-person differences in perceived control. Targeting health outcomes of control, survival analyses revealed that perceived control predicted 14-year hazard ratio for disability (n = 996 became disabled) and mortality (n = 1,382 died). The effect for mortality, but not for disability, was independent of sociodemographic and psychosocial factors. Overall, we found very limited support for age-differential associations. Our results provide further impetus to thoroughly examine processes involved in antecedent-consequent relations among perceived control, facets of social life, well-being, and health.

[Effect of antecedent dry weather period on urban storm runoff pollution load].

PubMed

Li, Li-qing; Yin, Cheng-qing; Kong, Ling-li; He, Qing-ci

2007-10-01

Twelve storm events were surveyed at Shilipu catchment in Wuhan City through three-year monitoring regime. The flow discharges, total suspended solids (TSS), chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) in runoff were measured to study the mechanism of urban stormwater runoff pollution. The relationship between the event pollution load and the antecedent dry weather period was identified to discuss the influence of the urban surface sanitation management, operation of sewer pipe maintenance and rainfall characteristics on the urban stormwater runoff pollution. It was found that the antecedent dry weather period and runoff amount were the important determining factors in the generation of urban stormwater runoff pollution. The event pollution load was positively correlated to the antecedent dry weather period between two rainfall events (R2 = 0.95, p < 0.01). It was the most important hydrological factor influencing the events pollution loads. The best regression equation to estimate pollution load for storm events was developed based on the antecedent dry weather period and runoff depth. Source control including improving urban street sweeping activities and operation of sewer pipe maintenance should be made to reduce the amount of available pollutant over the dry days. It is important alternative to control urban stormwater runoff pollution for Hanyang District.

Situational and Dispositional Factors as Antecedents of Ingratiatory Behaviors in Organizational Settings

ERIC Educational Resources Information Center

Kacmar, K. Michele; Carlson, Dawn S.; Bratton, Virginia K.

2004-01-01

This study examined both situational and dispositional antecedents of four ingratiatory behaviors: other-enhancing, opinion conformity, favor rendering, and self-promotion. The two situational variables (i.e., role ambiguity and leader-member exchange) and the four dispositional variables (i.e., self-esteem, need for power, job involvement, and…

Antecedents to Team Performance on Student IT Projects

ERIC Educational Resources Information Center

Havelka, Douglas

2016-01-01

A study was performed to test the impact of factors suggested by social capital and social cognitive theories as important antecedents to team performance on information technology (IT) course projects. Specifically, the impact of personal outcome expectations and social interaction ties on the quality and quantity of knowledge sharing is…

Propfan Test Assessment (PTA)

NASA Technical Reports Server (NTRS)

Little, B. H.; Poland, D. T.; Bartel, H. W.; Withers, C. C.; Brown, P. C.

1989-01-01

The objectives of the Propfan Test Assessment (PTA) Program were to validate in flight the structural integrity of large-scale propfan blades and to measure noise characteristics of the propfan in both near and far fields. All program objectives were met or exceeded, on schedule and under budget. A Gulfstream Aerospace Corporation GII aircraft was modified to provide a testbed for the 2.74m (9 ft) diameter Hamilton Standard SR-7 propfan which was driven by a 4475 kw (600 shp) turboshaft engine mounted on the left-hand wing of the aircraft. Flight research tests were performed for 20 combinations of speed and altitude within a flight envelope that extended to Mach numbers of 0.85 and altitudes of 12,192m (40,000 ft). Propfan blade stress, near-field noise on aircraft surfaces, and cabin noise were recorded. Primary variables were propfan power and tip speed, and the nacelle tilt angle. Extensive low altitude far-field noise tests were made to measure flyover and sideline noise and the lateral attenuation of noise. In coopertion with the FAA, tests were also made of flyover noise for the aircraft at 6100m (20,000 ft) and 10,668m (35,000 ft). A final series of tests were flown to evaluate an advanced cabin wall noise treatment that was produced under a separate program by NASA-Langley Research Center.

The value of the identification of predisposing factors for post-traumatic amnesia in management of mild traumatic brain injury.

PubMed

Fotakopoulos, George; Makris, Demosthenes; Tsianaka, Eleni; Kotlia, Polikceni; Karakitsios, Paulos; Gatos, Charalabos; Tzannis, Alkiviadis; Fountas, Kostas

2018-01-01

To identify the risk factors for post-traumatic amnesia (PTA) and to document the incidence of PTA after mild traumatic brain injuries. This was a prospective study, affecting mild TBI (mTBI) (Glasgow Coma Scale 14-15) cases attending to the Emergency Department between January 2009 and April 2012 (40 months duration). Patients were divided into two groups (Group A: without PTA, and Group B: with PTA, and they were assessed according to the risk factors. A total of 1762 patients (males: 1002, 56.8%) were meeting study inclusion criteria [Group A: n = 1678 (83.8%), Group B: n = 84 (4.2%)]. Age, CT findings: (traumatic focal HCs in the frontal and temporal lobes or more diffuse punctate HCs, and skull base fractures), anticoagulation therapy and seizures were independent factors of PTA. There was no statistically significant correlation between PTA and sex, convexity fractures, stroke event, mechanism of mTBI (fall +/or beating), hypertension, coronary heart disease, chronic smokers and diabetes (p > 0.005). CT findings: (traumatic focal HCs in the frontal and temporal lobes or more diffuse punctate HCs and skull base fractures), age, seizures and anticoagulation/antiplatelet therapy, were independent factors of PTA and could be used as predictive factors after mTBI.

Childhood antecedents of adult sense of belonging.

PubMed

Hagerty, Bonnie M; Williams, Reg Arthur; Oe, Hiroaki

2002-07-01

Sense of belonging has been proposed to be a basic human need, and deficits in sense of belonging have been linked to problems in social and psychological functioning. Yet, there is little evidence about what early life experiences contribute to sense of belonging. The purpose of this study was to examine potential childhood antecedents of adult sense of belonging. The sample consisted of 362 community college students ranging in age from 18 to 72 years, with a mean age of 26 years. Measures included the Sense of Belonging Instrument, the Parental Bonding Instrument, and the Childhood Adversity and Adolescent Deviance Instrument. Multiple regression analysis was used to correlate childhood antecedents with adult sense of belonging. The final reduced model included 12 variables, which accounted for 25% of the variance in sense of belonging. Significant positive antecedents with a relationship with sense of belonging were perceived caring by both mother and father while growing up, participation in high school athletic activity, and parental divorce. Significant negative variables with a relationship with sense of belonging included perceived overprotection of father, high school pregnancy, family financial problems while growing up, incest, and homosexuality. Knowledge of these factors should influence interventions with families regarding child-rearing and parenting practices, mediating the effects of crises during childhood such as divorce and teen pregnancy, and the interpersonal growth needs of teenagers. Copyright 2002 Wiley Periodicals, Inc.

Anaerobic-aerobic treatment of purified terephthalic acid (PTA) effluent; a techno-economic alternative to two-stage aerobic process.

PubMed

Pophali, G R; Khan, R; Dhodapkar, R S; Nandy, T; Devotta, S

2007-12-01

This paper addresses the treatment of purified terephthalic acid (PTA) effluent using anaerobic and aerobic processes. Laboratory studies were carried out on flow proportionate composite wastewater generated from the manufacturing of PTA. An activated sludge process (ASP-two stage and single stage) and an upflow anaerobic fixed film fixed bed reactor (AFFFBR) were used, individually and in combination. The performance of a full-scale ETP under existing operating conditions was also studied. Full scale ETP studies revealed that the treatment of PTA effluent using a two-stage ASP alone does not meet treated effluent quality within the prescribed Indian Standards. The biomass produced in the two stage ASP was very viscous and fluffy and the sludge volume index (SVI) was very high (200-450 ml/g). However, pretreatment of PTA effluent using an upflow AFFFBR ensured substantial reduction in BOD (63%) and COD (62%) with recovery of biogas at 1.8-1.96 l/l effluent treated at a volumetric loading rate (VLR) 4-5 kg COD/m(3) d. The methane content in the biogas varied between 55% and 60%. The pretreated effluent from the upflow AFFFBR was then treated through a single stage ASP. The biomass produced in the ASP after anaerobic treatment had very good settlability (SVI: 75-90 ml/g) as compared to the two stage ASP and the treated effluent quality with respect to BOD, COD and SS was within the prescribed Indian Standards. The alternative treatment process comprising an upflow AFFFBR and a single stage ASP ensured net power saving of 257 kW and in addition generated 442 kW of power through the AFFFBR.

Inhibitory spectrum of alpha 2-plasmin inhibitor.

PubMed Central

Saito, H; Goldsmith, G H; Moroi, M; Aoki, N

1979-01-01

alpha 2-Plasmin inhibitor (alpha 2PI) has been recently characterized as a fast-reacting inhibitor of plasmin in human plasma and appears to play an important role in the regulation of fibrinolysis in vivo. We have studied the effect of purified alpha 2PI upon various proteases participating in human blood coagulation and kinin generation. At physiological concentration (50 microgram/ml), alpha 2PI inhibited the clot-promoting and prekallikrein-activating activity of Hageman factor fragments, the amidolytic, kininogenase, and clot-promoting activities of plasma kallikrein, and the clot-promoting properties of activated plasma thromboplastin antecedent (PTA, Factor XIa) and thrombin. alpha 2PI had minimal inhibitory effect on surface-bound activated PTA and activated Stuart factor (Factor Xa). alpha 2PI did not inhibit the activity of activated Christmas factor (Factor IXa) or urinary kallikrein. Heparin (1.5-2.0 units/ml) did not enhance the inhibitory function of alpha 2PI. These results suggest that, like other plasma protease inhibitors, alpha 2PI possesses a broad in vitro spectrum of inhibitory properties. PMID:156364

Wh-filler-gap dependency formation guides reflexive antecedent search

PubMed Central

Frazier, Michael; Ackerman, Lauren; Baumann, Peter; Potter, David; Yoshida, Masaya

2015-01-01

Prior studies on online sentence processing have shown that the parser can resolve non-local dependencies rapidly and accurately. This study investigates the interaction between the processing of two such non-local dependencies: wh-filler-gap dependencies (WhFGD) and reflexive-antecedent dependencies. We show that reflexive-antecedent dependency resolution is sensitive to the presence of a WhFGD, and argue that the filler-gap dependency established by WhFGD resolution is selected online as the antecedent of a reflexive dependency. We investigate the processing of constructions like (1), where two NPs might be possible antecedents for the reflexive, namely which cowgirl and Mary. Even though Mary is linearly closer to the reflexive, the only grammatically licit antecedent for the reflexive is the more distant wh-NP, which cowgirl. (1). Which cowgirl did Mary expect to have injured herself due to negligence? Four eye-tracking text-reading experiments were conducted on examples like (1), differing in whether the embedded clause was non-finite (1 and 3) or finite (2 and 4), and in whether the tail of the wh-dependency intervened between the reflexive and its closest overt antecedent (1 and 2) or the wh-dependency was associated with a position earlier in the sentence (3 and 4). The results of Experiments 1 and 2 indicate the parser accesses the result of WhFGD formation during reflexive antecedent search. The resolution of a wh-dependency alters the representation that reflexive antecedent search operates over, allowing the grammatical but linearly distant antecedent to be accessed rapidly. In the absence of a long-distance WhFGD (Experiments 3 and 4), wh-NPs were not found to impact reading times of the reflexive, indicating that the parser's ability to select distant wh-NPs as reflexive antecedents crucially involves syntactic structure. PMID:26500579

An assessment of antecedent events influencing noncompliance in an outpatient clinic.

PubMed Central

Call, Nathan A; Wacker, David P; Ringdahl, Joel E; Cooper-Brown, Linda J; Boeiter, Eric W

2004-01-01

Several studies have shown that various factors can influence noncompliance, including task novelty, rate of presentation, and task preference. This study examined the impact of selected antecedent variables on noncompliance in an outpatient clinic setting. In two experiments involving 6 typically developing children, the consequences for noncompliance remained constant. During Experiment 1, demands that included noncontingent access to adult attention were contrasted with the same demands that did not include attention within a multielement design. In Experiment 2, demands were altered by decreasing the difficulty or amount of work or providing access to attention. In both experiments, results indicated idiosyncratic responses to the manipulated variables, with decreases in noncompliance observed following introduction of one or more antecedent variables with 5 of the 6 participants. These results suggested that noncompliance can be reduced via changes in antecedent variables, including adding potential positive reinforcers to the task situation, and that it is possible to probe variables that alter noncompliance in an outpatient clinic setting. PMID:15293634

Key organizational commitment antecedents for nurses, paramedical professionals and non-clinical staff.

PubMed

Caykoylu, Sinan; Egri, Carolyn P; Havlovic, Stephen; Bradley, Christine

2011-01-01

The purpose of this paper is to develop a causal model that explains the antecedents and mediating factors predicting the organizational commitment of healthcare employees in different work roles. This study tests an integrative causal model that consists of a number of direct and indirect relationships for antecedents of organizational commitment. It is proposed that the relationship between job satisfaction and organizational commitment is best understood by focusing on the three interrelated facets of job satisfaction, i.e. satisfaction with career advancement, satisfaction with supervisor, and satisfaction with co-workers. However, the model also advances that these job satisfaction facets have different mediating effects for other antecedents of organizational commitment. The Structural Equation Modeling (SEM) path analysis showed that the job satisfaction facets of career advancement and satisfaction with supervisor had a direct impact on organizational commitment. Employee empowerment, job-motivating potential, effective leadership, acceptance by co-workers, role ambiguity and role conflict were also important determinants of organizational commitment. Interestingly, post hoc analyses showed that satisfaction with co-workers only had an indirect impact on organizational commitment. While there has been extensive research on organizational commitment and its antecedents in healthcare organizations, most previous studies have been limited either to a single employee group or to a single time frame. This study proposes a practical causal model of antecedents of organizational commitment that tests relationships across time and across different healthcare employee groups.

Antecedents and Consequences of Choice.

DTIC Science & Technology

1981-04-01

ADAO97 738 VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG F/A 5/10I -A077 ANTECEDENTS AND CONSEQUENCES OF CHOICE.(U) A PR 81 L C PERIMUTER...1. REOR W ..... T ATO PAGE EAD iNSTRUCTiONS 4. TITL. , O PC OF REPORT A PERIOD COVERED( Antecedents and Consequences of Choic Final rN t 7. NTR,_C...sense of control has motivational consequences which may enhance performance on a variety of tasks .lost researchers in this field recognize that the

Revisiting the Antecedents of Social Entrepreneurial Intentions in Hong Kong

ERIC Educational Resources Information Center

Ip, Ching Yin; Wu, Shih-Chia; Liu, Huei-Ching; Liang, Chaoyun

2017-01-01

This study examined how empathy, moral obligation, social entrepreneurial self-efficacy, perceived social support, and prior experience with social problems are associated with social entrepreneurial intentions. Through a survey, a sample of 252 Hong Kong students was used for analyses. Factor analyses supported that the antecedents of social…

Processing Elided Verb Phrases with Flawed Antecedents: the Recycling Hypothesis

PubMed Central

Arregui, Ana; Clifton, Charles; Frazier, Lyn; Moulton, Keir

2006-01-01

Traditional syntactic accounts of verb phrase ellipsis (e.g. “Jason laughed. Sam did [ ] too.”) categorize as ungrammatical many sentences that language users find acceptable (they “undergenerate”); semantic accounts overgenerate. We propose that a processing theory, together with a syntactic account, does a better job of describing and explaining the data on verb phrase-ellipsis. Five acceptability judgment experiments supported a “VP recycling hypothesis,” which claims that when a syntactically-matching antecedent is not available, the listener/reader creates one using the materials at hand. Experiments 1 and 2 used verb phrase ellipsis sentences with antecedents ranging from perfect (a verb phrase in matrix verb phrase position) to impossible (a verb phrase containing only a deverbal word). Experiments 3 and 4 contrasted antecedents in verbal versus nominal gerund subjects. Experiment 5 explored the possibility that speakers are particularly likely to go beyond the grammar and produce elided constituents without perfect matching antecedents when the antecedent needed is less marked than the antecedent actually produced. This experiment contrasted active (unmarked) and passive antecedents to show that readers seem to honor such a tendency. PMID:17710192

The Family Antecedents and the Subsequent Outcomes of Early Puberty

ERIC Educational Resources Information Center

Arim, Rubab G.; Tramonte, Lucia; Shapka, Jennifer D.; Dahinten, V. Susan; Willms, J. Douglas

2011-01-01

The purpose of this study was to examine both the family antecedents and the outcomes of early puberty, with a particular focus on factors related to family socioeconomic status (SES). The study employed a comprehensive measurement of pubertal development and longitudinal data from the Canadian National Longitudinal Survey of Children and Youth.…

Predisposing factors and management of complications in acute tonsillitis.

PubMed

Gahleitner, Constanze; Hofauer, Benedikt; Stark, Thomas; Knopf, Andreas

2016-09-01

RPA and NF was diagnosed with a sensitivity/specificity of 100%/94% in patients with acute tonsillitis and without suspicion for disease complication after ENT examination, but an age >35 years and serum CRP >15.5mg/dl. Acute tonsillitis represents a frequent disease in the otorhinolaryngology. Some patients exhibit disease aggravations resulting in (descending) peritonsillar abscess (PTA, dPTA), para-/retropharyngeal abscess (PPA, RPA), or necrotising fasciitis (NF). The study analyses the underlying predisposing factors. The retrospective cohort study includes a total of 1636 patients comprising 852 outpatients with acute bacterial tonsillitis, 279 in-patients with acute bacterial tonsillitis, 452 patients with PTA, 31 patients with dPTA/PPA, 12 patients with RPA, and 10 patients with NF. Patients were analysed for disease-related data. While leucocytes do not distinguish the sub-groups, C-reactive protein demonstrated a significant increase resulting in the highest level for RPA and NF (p < 0.0001). PTA and RPA are usually caused by streptococcus, dPTA/PPA by anaerobic bacterias, and NF mixed infections (p < 0.0001). Patients with PTA were younger than dPTA/PPA (p = 0.002) or RPA/NF (p < 0.0001). Subsequently, the rate of internistic comorbidities was significantly increased in RPA/NF (p < 0.0001). ROC-analysis identified cut-offs for age <36 years and CRP <15.5mg/dl to distinguish acute bacterial tonsillitis from RPA.

Antecedents of self-care in adults with congenital heart defects.

PubMed

McCabe, Nancy; Dunbar, Sandra B; Butler, Javed; Higgins, Melinda; Book, Wendy; Reilly, Carolyn

2015-12-15

Adults with congenital heart defects (ACHD) face long-term complications related to prior surgery, abnormal anatomy, and acquired cardiovascular conditions. Although self-care is an important part of chronic illness management, few studies have explored self-care in the ACHD population. The purpose of this study is to describe self-care and its antecedents in the ACHD population. Persons with moderate or severe ACHD (N=132) were recruited from a single ACHD center. Self-care (health maintenance behaviors, monitoring and management of symptoms), and potential antecedents including sociodemographic and clinical characteristics, ACHD knowledge, behavioral characteristics (depressive symptoms and self-efficacy), and family-related factors (parental overprotection and perceived family support) were collected via self-report and chart review. Multiple regression was used to identify antecedents of self-care maintenance, monitoring, and management. Only 44.7%, 27.3%, and 23.3% of participants performed adequate levels of self-care maintenance, monitoring and management, respectively. In multiple regression analysis, self-efficacy, education, gender, perceived family support, and comorbidities explained 25% of the variance in self-care maintenance (R(2)=.248, F(5, 123)=9.44, p<.001). Age, depressive symptoms, self-efficacy, and NYHA Class explained 23% of the variance in self-care monitoring (R(2)=.232, F(2, 124)=10.66, p<.001). Self-efficacy and NYHA Class explained 9% of the variance in self-care management (R(2)=.094, F(2, 80)=5.27, p=.007). Low levels of self-care are common among persons with ACHD. Multiple factors, including modifiable factors of self-efficacy, depressive symptoms, and perceived family support, are associated with self-care and should be considered in designing future interventions to improve outcomes in the ACHD population. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Antecedents of Self-Care in Adults with Congenital Heart Defects

PubMed Central

McCabe, Nancy; Dunbar, Sandra B.; Butler, Javed; Higgins, Melinda; Book, Wendy; Reilly, Carolyn

2015-01-01

Background Adults with congenital heart defects (ACHD) face long-term complications related to prior surgery, abnormal anatomy, and acquired cardiovascular conditions. Although self-care is an important part of chronic illness management, few studies have explored self-care in the ACHD population. The purpose of this study is to describe self-care and its antecedents in the ACHD population. Methods Persons with moderate or severe ACHD (N=132) were recruited from a single ACHD center. Self-care (health maintenance behaviors, monitoring and management of symptoms), and potential antecedents including sociodemographic and clinical characteristics, ACHD knowledge, behavioral characteristics (depressive symptoms and self-efficacy), and family-related factors (parental overprotection and perceived family support) were collected via self-report and chart review. Multiple regression was used to identify antecedents of self-care maintenance, monitoring, and management. Results Only 44.7%, 27.3%, and 23.3% of participants performed adequate levels of self-care maintenance, monitoring and management, respectively. In multiple regression analysis, self-efficacy, education, gender, perceived family support, and comorbidities explained 25% of the variance in self-care maintenance (R2=.248, F(5, 123)=9.44, p<.001). Age, depressive symptoms, self-efficacy, and NYHA Class explained 23% of the variance in self-care monitoring (R2=.232, F(2, 124)=10.66, p<.001). Self-efficacy and NYHA Class explained 9% of the variance in self-care management (R2=.094, F(2, 80)=5.27, p=.007). Conclusions Low levels of self-care are common among persons with ACHD. Multiple factors, including modifiable factors of self-efficacy, depressive symptoms, and perceived family support, are associated with self-care and should be considered in designing future interventions to improve outcomes in the ACHD population. PMID:26340127

Antecedents of Psychological Empowerment in the Malaysian Private Higher Education Institutions

ERIC Educational Resources Information Center

Ghani, Nik Azida Abd.; Hussin, Tengku Ahmad Badrul Shah bin Raja; Jusoff, Kamaruzaman

2009-01-01

Psychological empowerment comprising four cognitive dimensions i.e. meaning, competence, autonomy and impact in the context of private higher education institutions is being validated. Five factors considered as antecedents i.e. access to information, resources, organizational support and opportunity to learn and develop, and trust were studied.…

Exploring the Relevant Antecedents of Superintendent Leadership Skills

ERIC Educational Resources Information Center

Hartley, Lloyd

2012-01-01

Understanding antecedents to superintendent leadership development is crucial for the continued improvement of schools. This qualitative study seeks to identify skills superintendents consider critical to their position, antecedents that developed those skills, and provide an increased understanding of the methods needed for developing current and…

Effects of antecedent exercise on academic engagement and stereotypy during instruction.

PubMed

Neely, Leslie; Rispoli, Mandy; Gerow, Stephanie; Ninci, Jennifer

2015-01-01

Antecedent physical exercise has emerged as a potentially promising treatment for reducing challenging behavior and increasing academic behavior in individuals with autism spectrum disorder (ASD). The purpose of this study was to evaluate the effects of physical exercise conducted prior to instructional sessions (antecedent physical exercise) on academic engagement and stereotypy during instructional sessions for two children diagnosed with ASD. Functional analysis results suggested stereotypy was maintained by automatic reinforcement for both participants. A multielement design was employed to evaluate academic engagement and stereotypy during instructional sessions following randomly sequenced conditions involving either (a) no antecedent exercise, (b) brief durations of antecedent exercise, or (c) antecedent exercise that continued until the participant engaged in a systematically determined behavioral indicator of satiation. Both participants demonstrated higher levels of academic engagement and reduced levels of stereotypy during the instructional sessions which followed antecedent physical exercise that continued until behavioral indicators of satiation occurred. This study replicates previous research suggesting that individuals with ASD may benefit from physical exercise prior to academic instruction and further suggests that the duration of antecedent exercise may be optimally individualized based on behavioral indicators of satiation. © The Author(s) 2014.

How different types of users develop trust in technology: A qualitative analysis of the antecedents of active and passive user trust in a shared technology

PubMed Central

Xu, Jie; Le, Kim; Deitermann, Annika; Montague, Enid

2014-01-01

The aim of this study was to investigate the antecedents of trust in technology for active users and passive users working with a shared technology. According to the prominence-interpretation theory, to assess the trustworthiness of a technology, a person must first perceive and evaluate elements of the system that includes the technology. An experimental study was conducted with 54 participants who worked in two-person teams in a multi-task environment with a shared technology. Trust in technology was measured using a trust in technology questionnaire and antecedents of trust were elicited using an open-ended question. A list of antecedents of trust in technology was derived using qualitative analysis techniques. The following categories emerged from the antecedent: technology factors, user factors, and task factors. Similarities and differences between active users and passive user responses, in terms of trust in technology were discussed. PMID:24882059

Antecedents of Low Vocational Identity in College Students.

ERIC Educational Resources Information Center

Winterowd, Carrie L.; Krieshok, Thomas S.

This study examined antecedents related to low vocational identity in college freshmen. College students (N=360) completed the 35-item Low Vocational Identity Antecedents Scale (LVIAS) developed for this study, the Vocational Identity Scale (VIS), and other measures. Based on results from this sample, a 15-item LVIAS was developed that…

Antecedents of Charter School Success in New York State: Charter School Management Agencies and Additional Factors That Affect English/Language Arts Test Scores in Elementary Charter Schools

ERIC Educational Resources Information Center

Schwarz, Jennifer

2013-01-01

Charter schools frequently receive public as well as federal attention, and there is a growing body of research becoming available examining charter schools. With all this research there is still a need for further studies which deal specifically with antecedents of charter school success. This study examined factors contributing toward the…

Daily hassles, their antecedents and outcomes among professional first responders: A systematic literature review.

PubMed

Larsson, Gerry; Berglund, Anna Karin; Ohlsson, Alicia

2016-08-01

Occupational groups such as firefighters, military officers, paramedics and police officers are exposed to a combination of acute, severe and accumulated everyday stress. Drawing on the daily hassles perspective on stress, the aim was to synthesize existing research on daily hassles in professional first responder settings into a theoretical model. A systematic mixed studies review with an integrated design was undertaken. The selection process resulted in 40 articles meeting the inclusion criteria. The selected papers represented two literature reviews, one qualitative study, eight longitudinal studies and 29 cross-sectional studies. Five superior categories emerged in the analysis: Individual antecedent and continuously framing factors, Environmental antecedent and continuously framing factors, Appraisal and coping processes, Daily hassles and Outcome. Suggestions for future research are presented. © 2016 Scandinavian Psychological Associations and John Wiley & Sons Ltd.

How different types of users develop trust in technology: a qualitative analysis of the antecedents of active and passive user trust in a shared technology.

PubMed

Xu, Jie; Le, Kim; Deitermann, Annika; Montague, Enid

2014-11-01

The aim of this study was to investigate the antecedents of trust in technology for active users and passive users working with a shared technology. According to the prominence-interpretation theory, to assess the trustworthiness of a technology, a person must first perceive and evaluate elements of the system that includes the technology. An experimental study was conducted with 54 participants who worked in two-person teams in a multi-task environment with a shared technology. Trust in technology was measured using a trust in technology questionnaire and antecedents of trust were elicited using an open-ended question. A list of antecedents of trust in technology was derived using qualitative analysis techniques. The following categories emerged from the antecedent: technology factors, user factors, and task factors. Similarities and differences between active users and passive user responses, in terms of trust in technology were discussed. Copyright © 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.

Antecedents and consequences of binge eating episodes in women with an eating disorder.

PubMed

Kjelsås, E; Børsting, I; Gudde, C Buch

2004-03-01

The aim of this study was to explore antecedents and sequelae of binge eating episodes. A sample of eating disorders (n = 154 women) was selected from a total of 1849 female respondents (out of 2500) recruited as part of a general population-based survey. Included participants met DSM-III-R criteria for anorexia nervosa (AN), bulimia nervosa (BN) or eating disorder not otherwise specified (EDNOS) based on the Survey for Eating Disorders (SEDs). Preliminary criteria for binge eating disorder (BED) were added. Results indicated that the most frequently reported antecedents and consequences of binge eating were emotional and physiological factors. There were significant differences between the different ED subgroups in their frequency of binge eating episodes. Regarding antecedents of a binge eating episode, the SEDs-defined ED subgroups had overall differences in frequency on "stomach feeling". In particular, the BN-group reported "euphoria" more frequently than the BED and EDNOS-groups. Concerning consequences of a binge eating episode, there were overall differences between the ED subgroups on "fall asleep", and in addition a borderline significance was found for "disturbed by others" (p = 0.059). None of the eight women in the AN group reported "euphoria" as a factor that terminated a binge eating episode. The findings may have important implications with regard to prevention and treatment of ED.

Antecedents of Employees' Involvement in Work-Related Learning: A Systematic Review

ERIC Educational Resources Information Center

Kyndt, Eva; Baert, Herman

2013-01-01

Involvement in work-related learning seems to be more complex than a simple supply-demand fit. An interplay of several factors can influence this involvement at different stages of the decision-making process of the employee. The aim of this systematic review is to examine which antecedents of work-related learning have been identified in previous…

Rhythms of life: antecedents and outcomes of work-family balance in employed parents.

PubMed

Aryee, Samuel; Srinivas, E S; Tan, Hwee Hoon

2005-01-01

This study examined antecedents and outcomes of a fourfold taxonomy of work-family balance in terms of the direction of influence (work-family vs. family-work) and type of effect (conflict vs. facilitation). Respondents were full-time employed parents in India. Confirmatory factor analysis results provided evidence for the discriminant validity of M. R. Frone's (2003) fourfold taxonomy of work-family balance. Results of moderated regression analysis revealed that different processes underlie the conflict and facilitation components. Furthermore, gender had only a limited moderating influence on the relationships between the antecedents and the components of work-family balance. Last, work-family facilitation was related to the work outcomes of job satisfaction and organizational commitment.

Interior noise in the untreated Gulfstream II Propfan Test Assessment (PTA) aircraft

NASA Technical Reports Server (NTRS)

Kuntz, H. L.; Prydz, R. A.

1989-01-01

Interior noise on the Gulfstream II Propfan Test Assessment (PTA) aircraft was measured using 19 wing, 22 fuselage, and 32 cabin-interior microphones to determine the sources of the cabin noise. Results from ground and flight test acoustic and vibration measurements and analyses show that the major source of cabin noise was the airborne propfan blade passage frequency tones. The radiated sound pressure levels and the richness of the harmonic content of the propfan increased with increasing altitude. The acoustic output of the propfan also depended on the shaft power, helical Mach number, and blade passage frequency.

Perceived exertion. Antecedents and applications.

PubMed

Watt, B; Grove, R

1993-04-01

The field of perceived exertion has largely concerned itself with the problem of identifying the primary antecedents to this psychophysiological phenomenon. A vast literature has evolved addressing this problem, but it is fraught with contradictions. At this stage a comprehensive theory of perceived exertion does not exist. It is generally accepted that perception of exertion is dominated by physiological determinants. Physiological sensory cues have been separated into 2 categories: local factors (sensations from the working muscles and joints), and central factors (sensations from the cardiopulmonary system). Major reviews in this area generally agree that local factors dominate perception of exertion. Recent work in perceived exertion has placed an emphasis on examining the contributing psychological factors. Research into the psychological factors affecting perceived exertion has been highly fragmented with no apparent theoretical framework as a base. At the same time it is clear that an integration of psychological and physiological variables is required to obtain theoretically meaningful knowledge of this multidimensional construct. The assumed dominance of physiological factors has been challenged by the contention that in field situations, in which a variety of social psychological influences operate, psychological determinants of perceived exertion may be vastly more influential than previously estimated. Identification of the primary determinants of perceived exertion and knowledge of how these factors are integrated is vital for a concrete theory of perceived exertion to evolve.

Is Utilitarianism Risky? How the Same Antecedents and Mechanism Produce Both Utilitarian and Risky Choices.

PubMed

Lucas, Brian J; Galinsky, Adam D

2015-07-01

Philosophers and psychologists have long been interested in identifying factors that influence moral judgment. In the current analysis, we compare the literatures on moral psychology and decision making under uncertainty to propose that utilitarian choices are driven by the same forces that lead to risky choices. Spanning from neurocognitive to hormonal to interpersonal levels of analysis, we identify six antecedents that increase both utilitarian and risky choices (ventromedial prefrontal cortex brain lesions, psychopathology, testosterone, incidental positive affect, power, and social connection) and one antecedent that reduces these choices (serotonin activity). We identify the regulation of negative affect as a common mechanism through which the effects of each antecedent on utilitarian and risky choices are explained. By demonstrating that the same forces and the same underlying mechanism that produce risky choices also promote utilitarian choices, we offer a deeper understanding of how basic psychological systems underlie moral judgment. © The Author(s) 2015.

Peritonsillar abscess: clinical aspects of microbiology, risk factors, and the association with parapharyngeal abscess.

PubMed

Klug, Tejs Ehlers

2017-03-01

transportation of appropriate specimens, choice of methodology for detection and quantification of microorganisms, current or recent antibiotic treatment of patients, potential shift in significant pathogens during the course of infection, and factors associated with increased risk of PTA development.  The trend towards de-escalated surgical intervention and increasing reliance on antibiotic treatment, require studies defining the significant pathogens in PTA in order to determine optimal antibiotic regimens. Complications secondary to PTA may be avoided or better controlled with improved knowledge concerning the significant pathogens in PTA. Furthermore, identification of pathogens other than GAS, may lead the way for earlier bacterial diagnosis and timely intervention before abscess formation in sore throat patients. The identification and quantification of risk factors for PTA development constitutes another approach to reduce the incidence of PTA. As clinicians, we noticed that FN was recovered from PTA patients with increasing frequency and that patients infected with Fusobacterium necrophorum (FN) seemed to be more severely affected than patients infected with other bacteria. Furthermore, we occationally observed concomitant PPA in addition to a PTA, which made us hypothesize that PPA and PTA is often closely related and may share significant pathogens. Hence, our aims were: 1. To explore the microbiology of PTA with a special attention to Fusobacterium necrophorum (FN). 2. To elucidate whether smoking, age, gender, and seasons are risk factors for the development of PTA. 3. To characterize patients with PPA, explore the relationship between PPA and PTA, identify the pathogens associated with PPA, and review our management of PPA. In a retrospective study on all 847 PTA patients admitted to the ENT department at Aarhus University Hospital (AUH) from 2001 to 2006, we found that FN was the most prevalent (23%) bacterial strain in pus specimens. FN-positive patients

Antecedents and Consequences of Envy.

PubMed

Thompson, Geir; Glasø, Lars; Martinsen, Øyvind

2016-01-01

The aim of this study was to examine the relationship between individual attributes and envy, and to determine how envy may impact personal response variables in the workplace. To address these issues we apply Vecchio's theory on antecedents and consequences of envy (1995) as a theoretical framework. The present study relied on a cross-sectional measurement design. A total of 135 leaders and 772 followers employed in business organizations participated. SEM analysis shows that span of supervision serves as an important antecedent of envy, where span of supervision is significantly associated to envy via supportive leadership. Furthermore, envy seems to be indirectly and negatively related to self-esteem via distress and directly related to social loafing. The implications of these findings are discussed, and suggestions for future research are outlined.

Antecedents and consequences of psychological and team empowerment in organizations: a meta-analytic review.

PubMed

Seibert, Scott E; Wang, Gang; Courtright, Stephen H

2011-09-01

This paper provides meta-analytic support for an integrated model specifying the antecedents and consequences of psychological and team empowerment. Results indicate that contextual antecedent constructs representing perceived high-performance managerial practices, socio-political support, leadership, and work characteristics are each strongly related to psychological empowerment. Positive self-evaluation traits are related to psychological empowerment and are as strongly related as the contextual factors. Psychological empowerment is in turn positively associated with a broad range of employee outcomes, including job satisfaction, organizational commitment, and task and contextual performance, and is negatively associated with employee strain and turnover intentions. Team empowerment is positively related to team performance. Further, the magnitude of parallel antecedent and outcome relationships at the individual and team levels is statistically indistinguishable, demonstrating the generalizability of empowerment theory across these 2 levels of analysis. A series of analyses also demonstrates the validity of psychological empowerment as a unitary second-order construct. Implications and future directions for empowerment research and theory are discussed. PsycINFO Database Record (c) 2011 APA, all rights reserved

Antecedents and consequences of workplace violence against nurses: A qualitative study.

PubMed

Najafi, Fereshteh; Fallahi-Khoshknab, Masoud; Ahmadi, Fazlollah; Dalvandi, Asghar; Rahgozar, Mehdi

2018-01-01

To explore Iranian nurses' perceptions of and experiences with the antecedents and consequences of workplace violence perpetrated by patients, patients' relatives, colleagues and superiors. Workplace violence against nurses is a common problem worldwide, including in Iran. Although many studies have reviewed the antecedents and consequences of workplace violence, limited information is available on this topic. An understanding of the predisposing factors for violence and the consequences of violence is essential to developing programs to prevent and manage workplace violence. Qualitative descriptive design. In this qualitative study, 22 unstructured, in-depth interviews were conducted with registered nurses who had experienced workplace violence and who were selecting using purposive sampling in nine hospitals. Inductive content analysis was used to analyse the data. Five categories emerged as predisposing factors: unmet expectations of patients/relatives, inefficient organisational management, inappropriate professional communication, factors related to nurses and factors related to patients, patients' relatives and colleagues. Individual, familial and professional consequences were identified as outcomes of workplace violence against nurses. Workplace violence by patients/their relatives and colleagues/superiors is affected by various complicated factors at the individual and organisational levels. In addition to negatively affecting nurses' individual and family lives, workplace violence may lead to a lower quality of patient care and negative attitudes towards the nursing profession. Identifying factors, which lead to workplace violence, could help facilitate documenting and reporting such incidents as well as developing the necessary interventions to reduce them. Furthermore, native instruments must be developed to predict and monitor violence. © 2017 John Wiley & Sons Ltd.

Qualitative Studies: Historiographical Antecedents.

ERIC Educational Resources Information Center

Mills, Rilla Dean

This paper provides an overview of qualitative studies' antecedents among historiographers and of the positivist tide which nearly engulfed them. Humans live by interpretations. The task of social science--the basic task of qualitative studies--is to study these interpretations so that we can better understand the meanings which people use to…

A qualitative and quantitative examination of the antecedents of customer incivility.

PubMed

Sliter, Michael; Jones, Morgan

2016-04-01

Customer incivility is known to have a negative impact on employees working in service jobs. Despite an understanding of the negative outcomes of customer incivility (e.g., burnout, disengagement, absenteeism), little research has investigated antecedents of this low-intensity deviant behavior. This is a clear oversight, given that understanding antecedents of customer incivility is essential for determining methods for reducing this stressor. As such, we conducted 2 studies examining these antecedents. For Study 1, we used a qualitative approach, assessing customer incivility from the perspective of the customer. Three overall themes (with 13 subthemes) emerged that could potentially lead to customer incivility: characteristics of the customer, characteristics of the organization/environment, and characteristics of the service employee. In Study 2, we conducted a quantitative study to investigate-from the perspective of the service employee-customer incivility antecedents that could be potentially controlled by the organization, either through changing the work environment or the employee (through training and selection). The results of a 2 time-point survey study showed that the service environment, service rep incivility, service orientation, agreeableness, and neuroticism served as antecedents to customer incivility. Practical implications are discussed, identifying options for organizational leaders interested in reducing customer incivility, and advice is provided for researchers seeking to further examine the antecedents of customer incivility. (c) 2016 APA, all rights reserved).

Antecedent control in the treatment of brain-injured clients.

PubMed

Zencius, A H; Wesolowski, M D; Burke, W H; McQuade, P

1989-01-01

Three brain-injured clients failed to respond significantly to consequence management programmes designed to increase attendance, use of a cane, and to reduce unauthorized breaks. When antecedent stimulus control procedures were applied, attendance and use of a cane increased and unauthorized breaks decreased. The study shows that antecedent control may be the treatment of choice when treating brain-injured clients with memory loss.

Antecedent reactivation by surface and deep anaphora in Norwegian

PubMed Central

HESTVIK, ARILD; NORDBY, HELGE; KARLSEN, GEIR

2005-01-01

Anaphora are expressions in language that depend on other linguistic entities for their full meaning. They can furthermore be divided into two types according to the level of representation where they find their antecedents: Surface anaphora, which resolve their reference at the sentence representation level, and deep anaphora, which resolve their reference at the non-grammatical level of discourse representation. The linguistic theory of these two anaphor types, and recent findings about processing differences at these two levels, combine to predict that surface anaphora should show fast and immediate reactivation of their antecedents, whereas deep anaphora should have a slower time course of antecedent reaccess. These predictions were confirmed with two lexical decision task experiments with Norwegian stimuli. PMID:15842413

Estimating soil moisture exceedance probability from antecedent rainfall

NASA Astrophysics Data System (ADS)

Cronkite-Ratcliff, C.; Kalansky, J.; Stock, J. D.; Collins, B. D.

2016-12-01

The first storms of the rainy season in coastal California, USA, add moisture to soils but rarely trigger landslides. Previous workers proposed that antecedent rainfall, the cumulative seasonal rain from October 1 onwards, had to exceed specific amounts in order to trigger landsliding. Recent monitoring of soil moisture upslope of historic landslides in the San Francisco Bay Area shows that storms can cause positive pressure heads once soil moisture values exceed a threshold of volumetric water content (VWC). We propose that antecedent rainfall could be used to estimate the probability that VWC exceeds this threshold. A major challenge to estimating the probability of exceedance is that rain gauge records are frequently incomplete. We developed a stochastic model to impute (infill) missing hourly precipitation data. This model uses nearest neighbor-based conditional resampling of the gauge record using data from nearby rain gauges. Using co-located VWC measurements, imputed data can be used to estimate the probability that VWC exceeds a specific threshold for a given antecedent rainfall. The stochastic imputation model can also provide an estimate of uncertainty in the exceedance probability curve. Here we demonstrate the method using soil moisture and precipitation data from several sites located throughout Northern California. Results show a significant variability between sites in the sensitivity of VWC exceedance probability to antecedent rainfall.

Examining External and Internal Poverty as Antecedents of Teen Pregnancy

ERIC Educational Resources Information Center

Young, Tamera; Turner, Jean; Denny, George; Young, Michael

2004-01-01

Objectives: To identify antecedents of teen pregnancy. Methods: Data from the National Education Longitudinal Study were analyzed. This data set allowed us to identify eighth-grade antecedents of teen pregnancy/childbearing. Results: The variables that were found to be most predictive of later pregnancy were reflective of internal poverty (locus…

[Mobbing: a meta-analysis and integrative model of its antecedents and consequences].

PubMed

Topa Cantisano, Gabriela; Depolo, Marco; Morales Domínguez, J Francisco

2007-02-01

Although mobbing has been extensively studied, empirical research has not led to firm conclusions regarding its antecedents and consequences, both at personal and organizational levels. An extensive literature search yielded 86 empirical studies with 93 samples. The matrix correlation obtained through meta-analytic techniques was used to test a structural equation model. Results supported hypotheses regarding organizational environmental factors as main predictors of mobbing.

Antecedents and Consequences of Work Engagement Among Nurses

PubMed Central

Sohrabizadeh, Sanaz; Sayfouri, Nasrin

2014-01-01

Background: Engaged nurses have high levels of energy and are enthusiastic about their work which impacts quality of health care services. However, in the context of Iran, due to observed burnout, work engagement among nurses necessitates immediate exploration. Objectives: This investigation aimed to identify a suitable work engagement model in nursing profession in hospitals according to the hypothesized model and to determine antecedents and consequences related to work engagement among nurses. Patients and Methods: In this cross-sectional study, a questionnaire was given to 279 randomly-selected nurses working in two general teaching hospitals of Shiraz University of Medical Sciences (Shiraz, Iran) to measure antecedents and consequences of work engagement using the Saks’s (2005) model. Structural Equation Modeling was used to examine the model fitness. Results: Two paths were added using LISREL software. The resulting model showed good fitness indices (χ2 = 23.62, AGFI = 0.93, CFI = 0.97, RMSEA = 0.07) and all the coefficients of the paths were significant (t ≥ 2, t ≤ -2). A significant correlation was found between work engagement and model variables. Conclusions: Paying adequate attention to the antecedents of work engagement can enhance the quality of performance among nurses. Additionally, rewards, organizational and supervisory supports, and job characteristics should be taken into consideration to establish work engagement among nurses. Further researches are required to identify other probable antecedents and consequences of nursing work engagement, which might be related to specific cultural settings. PMID:25763212

ANTECEDENT VERSUS CONSEQUENT EVENTS AS PREDICTORS OF PROBLEM BEHAVIOR

PubMed Central

Camp, Erin M; Iwata, Brian A; Hammond, Jennifer L; Bloom, Sarah E

2009-01-01

Comparisons of results from descriptive and functional analyses of problem behavior generally have shown poor correspondence. Most descriptive analyses have focused on relations between consequent events and behavior, and it has been noted that attention is a common consequence for problem behavior even though it may not be a functional reinforcer. Because attention may be prescribed simply as a means of stopping serious problem behavior, it is possible that naturally occurring antecedent events (establishing operations) might be better predictors of problem behavior than consequences. We conducted descriptive and functional analyses of the problem behaviors of 7 participants. Conditional probabilities based on combined antecedent and consequent events showed correspondence with the functional analysis data for 4 of the 7 participants, but antecedent events were no better than consequent events in identifying the function of problem behavior. PMID:19949538

Maternal Gatekeeping: Antecedents and Consequences

ERIC Educational Resources Information Center

Gaunt, Ruth

2008-01-01

This study examined maternal gatekeeping, its background and psychological antecedents, and its consequences for paternal and maternal involvement in child care. In sum, 209 couples with 6- to 36-month-old children completed extensive questionnaires. Analyses revealed that various dimensions of gate-keeping were differentially associated with the…

The correlation of Skylab L-band brightness temperatures with antecedent precipitation

NASA Technical Reports Server (NTRS)

Mcfarland, M. J.

1975-01-01

The S194 L-band radiometer flown on the Skylab mission measured terrestrial radiation at the microwave wavelength of 21.4 cm. The terrain emissivity at this wavelength is strongly dependent on the soil moisture content, which can be inferred from antecedent precipitation. For the Skylab data acquisition pass from the Oklahoma panhandle to southeastern Texas on 11 June 1973, the S194 brightness temperatures are highly correlated with antecedent precipitation from the preceding eleven day period, but very little correlation was apparent for the preceding five day period. The correlation coefficient between the averaged antecedent precipitation index values and the corresponding S194 brightness temperatures between 230 K and 270 K, the region of apparent response to soil moisture in the data, was -0.97. The equation of the linear least squares line fitted to the data was: API (cm) = 31.99 -0.114 TB (K), where API is the antecedent precipitation index and TB is the S194 brightness temperature.

Lipid and C-reactive Protein Levels as Risk Factors for Hearing Loss in Older Adults

PubMed Central

Simpson, Annie N.; Matthews, Lois J.; Dubno, Judy R.

2013-01-01

Objective To determine the role of cardiovascular disease (CVD) markers, lipids and C-reactive protein, in age-related hearing loss over time. Study Design Prospective cohort study. Setting Research laboratories at an academic medical center. Subjects and Methods In total, 837 older adults (mean age 67.5 years) were included. Primary dependent variables were puretone thresholds (pure-tone average [PTA]), including “narrow” PTA (0.5, 1, 2, 4 kHz), “broad” PTA (0.5, 1, 2, 3, 4, 6, 8 kHz), low-frequency PTA (0.25, 0.5, 1 kHz), and high-frequency PTA (2, 3, 4, 6, 8 kHz). Repeated-measures mixed regression modeling was used to assess the relationship between C-reactive protein (CRP) and lipid levels with PTAs over time. Results In a cross-sectional sample of 837 subjects, modest associations were found between triglycerides and all PTAs. Weak associations were observed between the ratio of total cholesterol and high-density lipoprotein and narrow PTA, broad PTA, and high-frequency PTA. However, when assessing changes in hearing and lipids over time in a longitudinal analysis, no significant associations between hearing and lipids remained. PTAs and CRP were not statistically associated when controlling for age and sex. Conclusion Associations between hearing and blood lipids have been the focus of scientific inquiry for more than 50 years. The current results suggest that the association is either spurious or too small to be of consequence in the assessment and treatment of hearing loss in older adults. Inquiry into other potential risk factors for age-related hearing loss and associations with CVD may prove more fruitful. PMID:23322627

Compulsive Buying among College Students: An Investigation of Its Antecedents, Consequences, and Implications for Public Policy.

ERIC Educational Resources Information Center

Roberts, James A.

1998-01-01

This study investigated the incidence, antecedents, consequences, and policy implications of compulsive buying among college students (n=300). Details contributing factors and discusses the relationship between credit card use and compulsive buying. Discusses the implications for consumer policy and suggestions for further research. (JOW)

Weld Bead Geometry of Ni-Based Alloy Deposited by PTA Process for Pipe Conduction of Shale Gas

NASA Astrophysics Data System (ADS)

Echavarria-Figueroa, C.; García-Vázquez, F.; Ruiz-Mondragón, J.; Hernández-García, H. M.; González-González, D.; Vargas, A.

The transportation of shale gas has the problem that the piping used for the extraction does not resist the erosion generated by the amount of solids causing cracks over the surface and it is necessary to extend the life of the pipelines. Plasma transferred arc (PTA) welded coatings are used to improve the surface properties of mechanical parts. Therefore, in this paper is studied the use of Ni-based filler metal as weld bead deposits on A36 steel substrates by PTA. In order to determine the suitable conditions to ensure coating quality on the substrate a design of experiments (DOE) was determined. Welding current, feed rate, and travel speed were used as input parameters and the dilution percentage as the response variable. The composition and properties of hardfacing or overlay deposited are strongly influenced by the dilution obtained. Control of dilution is important, where typically low dilution is desirable. When the dilution is low, the final deposit composition will be closer to that of the filler metal, and the wear and corrosion resistance of the hardfacing will also be maintained. To evaluate the features on the weld beads/substrate interface a microstructural characterization was performed by using scanning electron microscopy and to evaluate the mechanical properties was carried out hardness test.

Emotional Antecedents and Consequences of Deliberate Self-Harm and Suicide Attempts

ERIC Educational Resources Information Center

Chapman, Alexander L.; Dixon-Gordon, Katherine L.

2007-01-01

Emotional experiences immediately prior to (emotional antecedents) and following (emotional consequences) deliberate self-harm and suicide attempts in female inmates (N = 63) were examined. Anger was the antecedent emotion reported by the largest proportion of individuals who had engaged in deliberate self-harm (45.16%), suicide attempts (40.9%),…

Wind tunnel performance results of an aeroelastically scaled 2/9 model of the PTA flight test prop-fan

NASA Technical Reports Server (NTRS)

Stefko, George L.; Rose, Gayle E.; Podboy, Gary G.

1987-01-01

High speed wind tunnel aerodynamic performance tests of the SR-7A advanced prop-fan have been completed in support of the Prop-Fan Test Assessment (PTA) flight test program. The test showed that the SR-7A model performed aerodynamically very well. At the cruise design condition, the SR-7A prop fan had a high measured net efficiency of 79.3 percent.

Antecedents of Absorptive Capacity: A New Model for Developing Learning Processes

ERIC Educational Resources Information Center

Rezaei-Zadeh, Mohammad; Darwish, Tamer K.

2016-01-01

Purpose: The purpose of this paper is to provide an integrated framework to indicate which antecedents of absorptive capacity (AC) influence its learning processes, and to propose testing of this model in future work. Design/methodology/approach Relevant literature into the antecedents of AC was critically reviewed and analysed with the objective…

Safety self-efficacy and safety performance: potential antecedents and the moderation effect of standardization.

PubMed

Katz-Navon, Tal; Naveh, Eitan; Stern, Zvi

2007-01-01

The purpose of this paper is to suggest a new safety self-efficacy construct and to explore its antecedents and interaction with standardization to influence in-patient safety. The paper used a survey of 161 nurses using a self-administered questionnaire over a 14-day period in two large Israeli general hospitals. Nurses answered questions relating to four safety self-efficacy antecedents: enactive mastery experiences; managers as safety role models; verbal persuasion; and safety priority, that relate to the perceived level of standardization and safety self-efficacy. Confirmatory factor analysis was used to assess the scale's construct validity. Regression models were used to test hypotheses regarding the antecedents and influence of safety self-efficacy. Results indicate that: managers as safety role models; distributing safety information; and priority given to safety, contributed to safety self-efficacy. Additionally, standardization moderated the effects of safety self-efficacy and patient safety such that safety self-efficacy was positively associated with patient safety when standardization was low rather than high. Hospital managers should be aware of individual motivations as safety self-efficacy when evaluating the potential influence of standardization on patient safety. Theoretically, the study introduces a new safety self-efficacy concept, and captures its antecedents and influence on safety performance. Also, the study suggests safety self-efficacy as a boundary condition for the influence of standardization on safety performance. Implementing standardization in healthcare is problematic because not all processes can be standardized. In this case, self-efficacy plays an important role in securing patient safety. Hence, safety self-efficacy may serve as a "substitute-for-standardization," by promoting staff behaviors that affect patient safety.

Perceived antecedents of emotional reactions in inter-ethnic relations.

PubMed

Dijker, A J; Koomen, W; van den Heuvel, H; Frijda, N H

1996-06-01

It is argued that the aspects of intergroup relations that potentially can arouse emotions in the perceiver are likely to become central and motivationally relevant elements of group stereotypes. Asking participants to report on the perceived antecedents of their emotional reactions to in-group and out-group members should therefore be an especially useful method to reveal the content of stereotypes. Native Dutch participants reported both the frequencies with which different emotions were felt in different intergroup relations and the perceived causes of these emotions. Analysis of self-reported antecedents of emotional reactions revealed that (a) despite a general in-group favourability bias, both the in-group and the two out-groups employed arouse different kinds of negative and positive emotions; and (b) differences in emotional reactions to the two out-groups are related to salient differences in perceived antecedents between these groups. Theoretical and practical implications of the present emphasis on the cognitive foundation of emotion in intergroup relations are discussed.

Development and validation of a new survey: Perceptions of Teaching as a Profession (PTaP)

NASA Astrophysics Data System (ADS)

Adams, Wendy

2017-01-01

To better understand the impact of efforts to train more science teachers such as the PhysTEC Project and to help with early identification of future teachers, we are developing the survey of Perceptions of Teaching as a Profession (PTaP) to measure students' views of teaching as a career, their interest in teaching and the perceived climate of physics departments towards teaching as a profession. The instrument consists of a series of statements which require a response using a 5-point Likert-scale and can be easily administered online. The survey items were drafted by a team of researchers and physics teacher candidates and then reviewed by an advisory committee of 20 physics teacher educators and practicing teachers. We conducted 27 interviews with both teacher candidates and non-teaching STEM majors. The survey was refined through an iterative process of student interviews and item clarification until all items were interpreted consistently and answered for consistent reasons. In this presentation the preliminary results from the student interviews as well as the results of item analysis and a factor analysis on 900 student responses will be shared.

Antecedents, mediators, and outcomes of authentic leadership in healthcare: A systematic review.

PubMed

Alilyyani, Bayan; Wong, Carol A; Cummings, Greta

2018-07-01

Leaders are essential in every organization to achieve patient safety and healthy work environments. Authentic leadership is a relational leadership style purported to promote healthy work environments that influence staff performance and organizational outcomes. Given recent growth in authentic leadership research in healthcare and the importance of new knowledge to inform leadership development, there is an obligation to determine what is known about the antecedents and outcomes of authentic leadership in healthcare settings and clarify mechanisms by which authentic leadership affects healthcare staff and patient outcomes. The aim of this systematic review was to examine the antecedents, mediators and outcomes associated with authentic leadership in healthcare. Systematic review. The search strategy included 11 electronic databases: ABI Inform Dateline, Academic Search Complete, Cochrane Database of Systematic Reviews, PubMed, CINAHL, Embase, ERIC, PsycINFO, Scopus, Web of Science, and ProQuest Dissertations & Theses. The search was conducted in January 2017. Published English-only quantitative research that examined the antecedents, mediators and outcomes of authentic leadership practices of leaders in healthcare settings was included. Quality assessment, data extractions, and analysis were completed on all included studies. Data extracted from included studies were analyzed through descriptive and narrative syntheses. Content analysis was used to group antecedents, outcomes and mediators into categories which were then compared to authentic leadership theory. 1036 titles and abstracts were screened yielding 136 manuscripts for full-text review which resulted in 21 included studies reported in 38 manuscripts. Significant associations between authentic leadership and 43 outcomes were grouped into two major themes: healthcare staff outcomes with 5 subthemes (personal psychological states, satisfaction with work, work environment factors, health & well-being, and

Family, Employment, and Individual Resource-Based Antecedents of Maternal Work-Family Enrichment from Infancy through Middle Childhood

PubMed Central

Zhou, Nan; Buehler, Cheryl

2015-01-01

This study used data from the NICHD Study of Early Child Care and Youth Development (N = 1,019) to examine family, employment, and individual antecedents of maternal work-family enrichment from infancy through middle childhood. Work-family conflict and important confounding factors were controlled. From the family domain, higher income-to-needs ratio and social support were associated with higher work-family enrichment. From the employment domain, greater job rewards, benefits of employment for children, and work commitment were associated with higher work-family enrichment. From the individual domain, higher maternal education and extroversion were associated with higher work-family enrichment. No family, employment, and individual characteristics were associated with work-family conflict across time except for partner intimacy. In general, the results supported antecedents of work-family enrichment that supply needed resources. The present study contributed to the literature by identifying antecedents of maternal work-family enrichment across early child developmental stages, which goes beyond examinations of particular life stages and a work-family conflict perspective. Implications for theory and practice are discussed. PMID:26641483

The tonoplast-localized sucrose transporter in Populus (PtaSUT4) regulates whole-plant water relations, responses to water stress, and photosynthesis.

PubMed

Frost, Christopher J; Nyamdari, Batbayar; Tsai, Chung-Jui; Harding, Scott A

2012-01-01

The Populus sucrose (Suc) transporter 4 (PtaSUT4), like its orthologs in other plant taxa, is tonoplast localized and thought to mediate Suc export from the vacuole into the cytosol. In source leaves of Populus, SUT4 is the predominantly expressed gene family member, with transcript levels several times higher than those of plasma membrane SUTs. A hypothesis is advanced that SUT4-mediated tonoplast sucrose fluxes contribute to the regulation of osmotic gradients between cellular compartments, with the potential to mediate both sink provisioning and drought tolerance in Populus. Here, we describe the effects of PtaSUT4-RNA interference (RNAi) on sucrose levels and raffinose family oligosaccharides (RFO) induction, photosynthesis, and water uptake, retention and loss during acute and chronic drought stresses. Under normal water-replete growing conditions, SUT4-RNAi plants had generally higher shoot water contents than wild-type plants. In response to soil drying during a short-term, acute drought, RNAi plants exhibited reduced rates of water uptake and delayed wilting relative to wild-type plants. SUT4-RNAi plants had larger leaf areas and lower photosynthesis rates than wild-type plants under well-watered, but not under chronic water-limiting conditions. Moreover, the magnitude of shoot water content, height growth, and photosynthesis responses to contrasting soil moisture regimes was greater in RNAi than wild-type plants. The concentrations of stress-responsive RFOs increased in wild-type plants but were unaffected in SUT4-RNAi plants under chronically dry conditions. We discuss a model in which the subcellular compartmentalization of sucrose mediated by PtaSUT4 is regulated in response to both sink demand and plant water status in Populus.

Academic Performance Antecedent Scale: validation with native and recent immigrant children.

PubMed

Wang, Ru-Jer; Kuo, Kung-Bin; Cheng, Chien-Ming; Hsieh, Pei-Jung; Wang, Han-Yu; Chang, Ya-Wen; Shen, Chia-Yi

2013-06-01

This study aims to assess the measurement invariance of the three subscales of the newly developed Academic Performance Antecedent Scale (APAS)--School Factors, Mother's Parenting Style, and Individual Factors--across native and new immigrant children in Taiwan. The study sample comprised 527 Grade 4 students (M age = 10.4 yr., SD = 0.6), 263 boys and 264 girls. The three groups were urban and rural children of Taiwanese natives (n = 343, 65.1%), and 184 children with non-Taiwanese mothers (34.9%). The four-factor structure of the School Factors Subscale, the three-factor structure of the Mother's Parenting Style Subscale, and the five-factor structure of the Individual Factors Subscale all showed at least acceptable fit for the groups. In addition, metric invariance was confirmed for the School Factors and Individual Factors Subscales. Metric invariance was partially obtained for the Mother's Parenting Style Subscale. The findings provide validity evidences for cross-cultural generalizability of the APAS.

Work Family Relations: Antecedents and Outcomes

ERIC Educational Resources Information Center

Cinamon, Rachel Gali; Rich, Yisrael

2010-01-01

This study investigated interrelations between conflict and facilitation in work and family domains, with spousal, managerial, and collegial social support serving as antecedents, and professional vigor and burnout as outcomes. Participants were 322 female, married teachers. Regression analyses revealed complex relations between conflict and…

Personality Types of Adolescents: Concurrent Correlates, Antecedents, and Type X Parenting Interactions.

ERIC Educational Resources Information Center

Dubas, Judith Semon; Gerris, Jan R. M.; Janssens, Jan M. A. M.; Vermulst, Ad A.

2002-01-01

Investigates the concurrent correlates and developmental antecedents of personality types in a sample of 14 to 19-year-old Dutch adolescents. Three main personality types with behavioral and parenting correlates and antecedents were identified. Discussion highlights the importance of the family environment in understanding behavioral correlates of…

Behavioral antecedents for handwashing in a low-income urban setting in Bangladesh: an exploratory study.

PubMed

Rahman, Musarrat J; Nizame, Fosiul A; Unicomb, Leanne; Luby, Stephen P; Winch, Peter J

2017-05-05

Health programs commonly promote handwashing by drawing attention to potential fecal contamination in the environment. The underlying assumption is that the thought of fecal contamination will result in disgust, and motivate people to wash their hands with soap. However, this has not proven sufficient to achieve high rates of handwashing with soap at key times. We argue that handwashing with soap is influenced by broader range of antecedents, many unrelated to fecal contamination, that indicate to people when and where to wash their hands. This exploratory study aimed to identify and characterize this broader range of handwashing antecedents for use in future handwashing promotion efforts. First, an initial list of behavioral antecedents was elicited through unstructured interviews, focus group discussions and observation with residents, from a low-income community in Dhaka, Bangladesh, who were also recipients of a handwashing intervention. Then, photographs representing three categories of behavioral antecedents were taken: activities of daily living, visual or tactile sensations, and handwashing-related hardware and activities. Finally, the research team conducted ranking exercises with a new set of participants, from the same area, to assess the perceived importance of each antecedent illustrated by the photographs. The research team probed about perceptions regarding how and why that particular antecedent, represented by the photograph, influences handwashing behavior. After coming out of the bathroom and dirt (moyla) on hands were the two antecedents that ranked highest. In all the categories, intervention-related antecedents (three key times for handwashing which included handwashing after coming out of the bathroom, after cleaning a child's anus and before food preparation; intervention provided items that included handwashing station, soapy water bottle, handwashing reminders from posters and community health provider visits) that were being promoted

Obstetric Antecedents to Body Cooling Treatment of the Newborn Infant

PubMed Central

Nelson, David B.; Lucke, Ashley M.; McIntire, Donald D.; Sánchez, Pablo J.; Leveno, Kenneth J.; Chalak, Lina F.

2014-01-01

Objective Obstetric antecedents were analyzed in births where the infant received whole-body cooling for neonatal encephalopathy. Methods This retrospective cohort study included all live-born singleton infants delivered at or beyond 36 weeks gestation from October 2005 through December 2011. Infants who had received whole-body cooling identified by review of a prospective neonatal registry were compared to a control group comprising the remaining obstetric population delivered at greater than 36 weeks but not cooled. Univariable analysis was followed by a staged, stepwise selection of variables with the intent to rank significant risk factors for cooling. Results A total of 86,371 women delivered during the study period and 98 infants received whole-body cooling (1.1/1,000 livebirths). Of these 98 infants, 80 (88%) newborns had moderate encephalopathy and 10 (12%) had severe encephalopathy prior to cooling. Maternal age less than or equal to 15 years, low parity, maternal body habitus (BMI ≥ 40 kg/m2), diabetes, preeclampsia, induction, epidural analgesia, chorioamnionitis, length of labor, and mode of delivery were associated with significantly increased risk of infant cooling during univariable analysis. Catastrophic events to include umbilical cord prolapse (OR 14; 95%CI, 3–72), placental abruption (OR 17; 95%CI, 7–44), uterine rupture (OR 130; 95%CI, 11–1477) were the strongest factors associated with infant cooling after staged-stepwise logistic analysis. Conclusion A variety of intrapartum characteristics were associated with infant cooling for neonatal encephalopathy with the most powerful antecedents being umbilical cord prolapse, placental abruption, and uterine rupture. PMID:24530976

The antecedents of buyers' perceived justice in online markets.

PubMed

Chiu, Shun-Po; Chou, Huey-Wen; Chiu, Chao-Min

2013-07-01

The success of a business largely depends upon customers' intentions to continue to purchase, but this can be a challenge for vendors in online markets. This study proposes a model which identifies an initial set of justice antecedents and evaluates their relation to perceived justice, trust, and repurchase intention in online markets. The theoretical model is tested by using structural equation modeling on a data set of 424 buyers in Yahoo! Kimo online auction market. The results demonstrate that three dimensions of justice (distributive, procedural, and interactional) are positively and significantly related to trust, which in turn affects buyers' intention to repurchase. Moreover, among the three dimensions of justice judgments, distributive justice and interactional justice are relatively more important than procedural justice in predicting buyers' trust in sellers. In terms of the antecedents of justice, this study provides evidence that product quality and delivery performance are significantly related to distributive justice, while information quality and contact channel are important antecedents of procedural justice. This study also finds that responsiveness is important in enhancing buyers' judgments of interactional justice.

Androgyny: Concept, Measurement, Correlates and Antecedents.

ERIC Educational Resources Information Center

DeFronzo, James; Boudreau, Frances

This paper introduces the concept of psychological androgyny to sociologists, examines the ways in which androgyny has been measured and operationally defined by psychologists, and reviews available research concerning the antecedents and correlates of androgyny. The results of original research conducted with 622 students at the University of…

Perceived sexual harassment at work: meta-analysis and structural model of antecedents and consequences.

PubMed

Topa Cantisano, Gabriela; Morales Domínguez, J F; Depolo, Marco

2008-05-01

Although sexual harassment has been extensively studied, empirical research has not led to firm conclusions about its antecedents and consequences, both at the personal and organizational level. An extensive literature search yielded 42 empirical studies with 60 samples. The matrix correlation obtained through meta-analytic techniques was used to test a structural equation model. Results supported the hypotheses regarding organizational environmental factors as main predictors of harassment.

Consideration of "g" as a Common Antecedent for Cognitive Ability Test Performance, Test Motivation, and Perceived Fairness

ERIC Educational Resources Information Center

Reeve, Charlie L.; Lam, Holly

2007-01-01

Several different analyses were used to test the hypothesis that test-taking motivation, perceived test fairness, and actual test performance are correlated only because they share a common antecedent. First, hierarchical regressions reveal that initial test performance has a unique influence on non-ability factors even after controlling for…

Antecedent-Based Interventions for Young Children at Risk for Emotional and Behavioral Disorders

ERIC Educational Resources Information Center

Park, Kristy L.; Scott, Terrance M.

2009-01-01

Following descriptive functional assessment procedures, a brief structural analysis was used to confirm the hypothesized antecedent conditions that preceded problem behavior across three children enrolled in Head Start classrooms. A withdrawal design investigated the effectiveness of antecedent-based interventions to reduce disruptive behaviors…

Emotional and aesthetic antecedents and consequences of music-induced thrills.

PubMed

Konecni, Vladimir J; Wanic, Rebekah A; Brown, Amber

2007-01-01

The significance of music-induced thrills or chills was explored in 3 experiments (N= 223). Specifically, the ability of antecedent (priming) stimuli in different modalities and aesthetic domains (national anthems, stories, architectural objects, paintings) to increase the participants' thrills responsiveness to music by Rachmaninoff and Haydn was examined. In addition, the differential effects of having or not having experienced thrills on the participants' subsequent willingness to donate blood, and on their mood and self-concept, were tested. It was found that while the antecedent stimuli in different modalities could themselves induce thrills in a predictable manner, these priming stimuli, and the thrills they elicited, had relatively weak effects on the thrills subsequently induced by the Rachmaninoff and Haydn pieces. The measures of altruism, self-concept, and mood were not affected by either the antecedent variables or the thrills experience. Thrills may often accompany profound aesthetic experiences and provide their physiological underpinning, yet themselves be of limited psychological significance.

Family, employment, and individual resource-based antecedents of maternal work-family enrichment from infancy through middle childhood.

PubMed

Zhou, Nan; Buehler, Cheryl

2016-07-01

This study used data from the National Institute of Child Health and Human Development (NICHD) Study of Early Child Care and Youth Development (N = 1,019) to examine family, employment, and individual antecedents of maternal work-family enrichment from infancy through middle childhood. Work-family conflict and important confounding factors were controlled. From the family domain, higher income-to-needs ratio and social support were associated with higher work-family enrichment. From the employment domain, greater job rewards, benefits of employment for children, and work commitment were associated with higher work-family enrichment. From the individual domain, higher maternal education and extroversion were associated with higher work-family enrichment. No family, employment, and individual characteristics were associated with work-family conflict across time except for partner intimacy. In general, the results supported antecedents of work-family enrichment that supply needed resources. The present study contributed to the literature by identifying antecedents of maternal work-family enrichment across early child developmental stages, which goes beyond examinations of particular life stages and a work-family conflict perspective. Implications for theory and practice are discussed. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Antecedents of students' achievement in statistics

NASA Astrophysics Data System (ADS)

Awaludin, Izyan Syazana; Razak, Ruzanna Ab; Harris, Hezlin; Selamat, Zarehan

2015-02-01

The applications of statistics in most fields have been vast. Many degree programmes at local universities require students to enroll in at least one statistics course. The standard of these courses varies across different degree programmes. This is because of students' diverse academic backgrounds in which some comes far from the field of statistics. The high failure rate in statistics courses for non-science stream students had been concerning every year. The purpose of this research is to investigate the antecedents of students' achievement in statistics. A total of 272 students participated in the survey. Multiple linear regression was applied to examine the relationship between the factors and achievement. We found that statistics anxiety was a significant predictor of students' achievement. We also found that students' age has significant effect to achievement. Older students are more likely to achieve lowers scores in statistics. Student's level of study also has a significant impact on their achievement in statistics.

Conduction velocity and refractory period of single motor nerve fibres in antecedent poliomyelitis.

PubMed Central

Borg, K; Borg, J

1987-01-01

The axonal conduction velocity and the axonal refractory period were determined using electromyographic techniques for 60 single motor units in 11 patients with antecedent poliomyelitis. The results were compared with previous observations in healthy subjects as well as subjects with motor neuron disease. In antecedent poliomyelitis there was a reduced proportion of nerve fibres with low conduction velocity as compared with the findings in healthy subjects. The mean value of the axonal conduction velocities in antecedent poliomyelitis (42.4 +/- 3.7 m/s, M +/- SD) was significantly higher (p less than 0.01) while in motor neuron disease the corresponding value (35.2 +/- 7.8 m/s) was significantly lower (p less than 0.005) than in healthy subjects (39.8 +/- 4.9 m/s). In antecedent poliomyelitis the conduction velocity and refractory period were related as in healthy subjects while abnormally long refractory periods were observed in motor neuron disease. Images PMID:3585356

The correlation of Skylab L-band brightness temperatures with antecedent precipitation

NASA Technical Reports Server (NTRS)

Mcfarland, M. J.

1975-01-01

The S194 L-band radiometer flown on the Skylab mission measured terrestrial radiation at the microwave wavelength of 21.4 cm. The terrain emissivity at this wavelength is strongly dependent on the soil moisture content, which can be inferred from antecedent precipitation. For the Skylab data acquisition pass from the Oklahoma panhandle to southeastern Texas on 11 June 1973, the S194 brightness temperatures are highly correlated with antecedent precipitation from the preceding eleven day period, but very little correlation was apparent for the preceding five day period. The correlation coefficient between the averaged antecedent precipitation index values and the corresponding S194 brightness temperatures between 230 K and 270 K, the region of apparent response to soil moisture in the data, was -0.97. The equation of the linear least squares line is given.

Adoption of clinical decision support systems in a developing country: Antecedents and outcomes of physician's threat to perceived professional autonomy.

PubMed

Esmaeilzadeh, Pouyan; Sambasivan, Murali; Kumar, Naresh; Nezakati, Hossein

2015-08-01

The basic objective of this research is to study the antecedents and outcomes of professional autonomy which is a central construct that affects physicians' intention to adopt clinical decision support systems (CDSS). The antecedents are physicians' attitude toward knowledge sharing and interactivity perception (about CDSS) and the outcomes are performance expectancy and intention to adopt CDSS. Besides, we include (1) the antecedents of attitude toward knowledge sharing-subjective norms, social factors and OCB (helping behavior) and (2) roles of physicians' involvement in decision making, computer self-efficacy and effort expectancy in our framework. Data from a stratified sample of 335 Malaysian physicians working in 12 public and private hospitals in Malaysia were collected to test the hypotheses using Structural Equation Modeling (SEM). The important findings of our research are: (1) factors such as perceived threat to professional autonomy, performance expectancy, and physicians' involvement in making decision about CDSS have significant impact on physicians' intention to adopt CDSS; (2) physicians' attitude toward knowledge sharing, interactivity perception and computer self-efficacy of physicians play a crucial role in influencing their perceived threat to professional autonomy; and (3) social network, shared goals and OCB (helping behavior) impact physicians' attitude toward knowledge sharing. The findings provide a comprehensive understanding of the factors that influence physicians' intention to adopt CDSS in a developing country. The results can help hospital managers manage CDSS implementation in an effective manner. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Coreference and Antecedent Representation across Languages

ERIC Educational Resources Information Center

Lago, Sol; Sloggett, Shayne; Schlueter, Zoe; Chow, Wing Yee; Williams, Alexander; Lau, Ellen; Phillips, Colin

2017-01-01

Previous studies have shown that speakers of languages such as German, Spanish, and French reactivate the syntactic gender of the antecedent of a pronoun to license gender agreement. As syntactic gender is assumed to be stored in the lexicon, this has motivated the claim that pronouns in these languages reactivate the lexical entry of their…

Antecedents and neuroimaging patterns in cerebral palsy with epilepsy and cognitive impairment: a population-based study in children born at term.

PubMed

Ahlin, Kristina; Jacobsson, Bo; Nilsson, Staffan; Himmelmann, Kate

2017-07-01

Antecedents of accompanying impairments in cerebral palsy and their relation to neuroimaging patterns need to be explored. A population-based study of 309 children with cerebral palsy born at term between 1983 and 1994. Prepartum, intrapartum, and postpartum variables previously studied as antecedents of cerebral palsy type and motor severity were analyzed in children with cerebral palsy and cognitive impairment and/or epilepsy, and in children with cerebral palsy without these accompanying impairments. Neuroimaging patterns and their relation to identified antecedents were analyzed. Data were retrieved from the cerebral palsy register of western Sweden, and from obstetric and neonatal records. Children with cerebral palsy and accompanying impairments more often had low birthweight (kg) (odds ratio 0.5, 95% confidence interval 0.3-0.8), brain maldevelopment known at birth (p = 0.007, odds ratio ∞) and neonatal infection (odds ratio 5.4, 95% confidence interval 1.04-28.4). Moreover, neuroimaging patterns of maldevelopment (odds ratio 7.2, 95% confidence interval 2.9-17.2), cortical/subcortical lesions (odds ratio 5.3, 95% confidence interval 2.3-12.2) and basal ganglia lesions (odds ratio 7.6, 95% confidence interval 1.4-41.3) were more common, wheras white matter injury was found significantly less often (odds ratio 0.2, 95% confidence interval 0.1-0.5). In most children with maldevelopment, the intrapartum and postpartum periods were uneventful (p < 0.05). Cerebral maldevelopment was associated with prepartum antecedents, whereas subcortical/cortical and basal ganglia lesions were associated with intrapartum and postpartum antecedents. No additional factor other than those related to motor impairment was associated with epilepsy and cognitive impairment in cerebral palsy. Timing of antecedents deemed important for the development of cerebral palsy with accompanying impairments were supported by neuroimaging patterns. © 2017 Nordic Federation of Societies of

Obstetric antecedents to body-cooling treatment of the newborn infant.

PubMed

Nelson, David B; Lucke, Ashley M; McIntire, Donald D; Sánchez, Pablo J; Leveno, Kenneth J; Chalak, Lina F

2014-08-01

Obstetric antecedents were analyzed in births in which the infant received whole-body cooling for neonatal encephalopathy. This retrospective cohort study included all live-born singleton infants delivered at or beyond 36 weeks' gestation from October 2005 through December 2011. Infants who had received whole-body cooling identified by review of a prospective neonatal registry were compared with a control group comprising the remaining obstetric population delivered at greater than 36 weeks but not cooled. Univariable analysis was followed up by a staged, stepwise selection of variables with the intent to rank significant risk factors for cooling. A total of 86,371 women delivered during the study period and 98 infants received whole-body cooling (1.1 per 1000 live births). Of these 98 infants, 80 newborns (88%) had moderate encephalopathy and 10 (12%) had severe encephalopathy prior to cooling. Maternal age of 15 years or younger, low parity, maternal body habitus (body mass index of ≥40 kg/m(2)), diabetes, preeclampsia, induction, epidural analgesia, chorioamnionitis, length of labor, and mode of delivery were associated with significantly increased risk of infant cooling during a univariable analysis. Catastrophic events to include umbilical cord prolapse (odds ratio [OR], 14; 95% confidence interval [CI], 3-72), placental abruption (OR, 17; 95% CI, 7-44), uterine rupture (OR, 130; 95% CI, 11-1477) were the strongest factors associated with infant cooling after staged-stepwise logistic analysis. A variety of intrapartum characteristics were associated with infant cooling for neonatal encephalopathy, with the most powerful antecedents being umbilical cord prolapse, placental abruption, and uterine rupture. Copyright © 2014 Mosby, Inc. All rights reserved.

Inter-seasonal variability in baseflow recession rates: The role of aquifer antecedent storage in central California watersheds

NASA Astrophysics Data System (ADS)

Bart, Ryan; Hope, Allen

2014-11-01

Baseflow recession rates vary inter-seasonally in many watersheds. This variability is generally associated with changes in evapotranspiration; however, an additional and less studied control over inter-seasonal baseflow recession rates is the effect of aquifer antecedent storage. Understanding the role of aquifer antecedent storage on baseflow recession rates is crucial for Mediterranean-climate regions, where seasonal asynchronicity of precipitation and energy levels produces large inter-seasonal differences in aquifer storage. The primary objective of this study was to elucidate the relation between aquifer antecedent storage and baseflow recession rates in four central California watersheds using antecedent streamflow as a surrogate for watershed storage. In addition, a parsimonious storage-discharge model consisting of two nonlinear stores in parallel was developed as a heuristic tool for interpreting the empirical results and providing insight into how inter-seasonal changes in aquifer antecedent storage may affect baseflow recession rates. Antecedent streamflow cumulated from the beginning of the wateryear was found to be the strongest predictor of baseflow recession rates, indicating that inter-seasonal differences in aquifer storage are a key control on baseflow recession rates in California watersheds. Baseflow recession rates and antecedent streamflow exhibited a negative power-law relation, with baseflow recession rates decreasing by up to two orders of magnitude as antecedent streamflow levels increased. Inference based on the storage-discharge model indicated that the dominant source of recession flow shifted from small, rapid response aquifers at the beginning of the wet season to large, seasonal aquifers as the wet season progressed. Aquifer antecedent storage in California watersheds should be accounted for along with evapotranspiration when characterizing baseflow recession rates.

Antecedents and Consequences of Situational Interest

ERIC Educational Resources Information Center

Linnenbrink-Garcia, Lisa; Patall, Erika A.; Messersmith, Emily E.

2013-01-01

Background: There is a growing body of research on situational interest (SI). Yet, we still know relatively little about how SI is supported in the classroom and the academic benefits of SI. Aim: The current study investigated (1) contextual antecedents of SI; (2) potential benefits of SI for academic outcomes; and (3) SI as a mediator of…

Pre-Service Teacher Beliefs on the Antecedents to Bullying: A Concept Mapping Study

ERIC Educational Resources Information Center

Lopata, Joel A.; Nowicki, Elizabeth A.

2014-01-01

In this study, researchers gathered Canadian pre-service teachers' beliefs on the antecedents to bullying. Concept mapping (Kane & Trochim, 2007) was used to analyze the data. This study's findings identified pre-service teachers to have accurate beliefs, inaccurate beliefs, and a lack of knowledge about the antecedents to bullying. Concept…

Starting up a Firm or Not: Differences in the Antecedents of Entrepreneurial Intentions

ERIC Educational Resources Information Center

Varamäki, Elina; Joensuu, Sanna; Viljamaa, Anmari

2016-01-01

Entrepreneurial intentions (EIs) and their antecedents have been extensively studied in student populations. The results suggest that higher education does not promote the formation of EI in students. This article examines the antecedents of intentions in two different student populations: those who are currently starting a firm and those who are…

Brief antecedent assessment and treatment of tics in the general education classroom: a preliminary investigation.

PubMed

Watson, T Steuart; Dufrene, Brad; Weaver, Adam; Butler, Tonya; Meeks, Caroline

2005-11-01

The purpose of this study was to determine if specific classroom antecedents were associated with motor and vocal tics in two males diagnosed with Tourette's syndrome. A functional assessment consisting of teacher and student interviews, direct observations, brief functional analysis, and confirmatory naturalistic observations indicated that specific antecedents could be identified for each participant. Simplified habit reversal was then implemented only under the antecedent condition that resulted in the highest rate of tics. The rate of tics decreased under the specific antecedent condition as well as at other times as validated by behavioral observations conducted at random times. The discussion focuses on the utility of conducting such assessments, the methodological and applied limitations of the current study, and avenues for further research.

Increasing Academic Engagement through Focused Antecedent Modification

ERIC Educational Resources Information Center

Short, Maureen

2016-01-01

This article reviews the functional behavior assessment steps followed to develop interventions designed to decrease challenging behavior in the classroom. The implementation of antecedent based interventions generated from data gathered through interviews and observations addressed off-task, call outs and other challenging classroom behaviors.…

Bullying development across adolescence, its antecedents, outcomes, and gender-specific patterns.

PubMed

Kretschmer, Tina; Veenstra, René; Deković, Maja; Oldehinkel, Albertine J

2017-08-01

In contrast to victimization, prior research on the antecedents and outcomes of bullying perpetration has provided little conclusive knowledge. Some adolescent bullies may be well adjusted and popular among peers, while other bullies are rejected and lack self-control. There is also great variation in the outcomes, with a number of studies (but not all) showing increased risk for externalizing and internalizing problems. We used a developmental framework and data from 2,230 participants of the Dutch Tracking Adolescents' Individual Lives Survey (TRAILS) to examine bullying perpetration across adolescence, to test the links with various antecedents in preadolescence, and to elucidate the outcomes in early adulthood. Latent growth models indicated significant variance in initial bullying perpetration levels and an overall decrease between pre- and late adolescence. Individual, family, and peer factors were associated with initial levels and partially associated with bullying development over time. Bullying perpetration was linked to later maladjustment and substance use, although only in girls. Finally, bullying perpetration appears to function as an intermediate variable between preadolescent individual, family, and peer risk and substance use more than 10 years later. These results have important implications for understanding the gender-specific nature of bullying perpetration and its outcomes and for demonstrating that bullying carries early risk into adulthood.

Childhood Depression: Theories, Antecedents and Supportive Resources.

ERIC Educational Resources Information Center

McLean, Laura L.

Early detection and measurement of the intensity of childhood depression are important concerns for those treating depressed children. To examine issues of childhood depression, a review of the research was conducted which focused on: (1) childhood depression scales and their effectiveness; (2) correlates and antecedents of childhood depression;…

Antecedent Knowledge and Intelligent Computer Assisted Instruction.

ERIC Educational Resources Information Center

Woodward, John P.; Carnine, Douglas W.

1988-01-01

The article reviews Intelligent Computer Assisted Instruction (ICAI), an area of artificial intelligence and notes its shortcomings for learning disabled students. It is suggested that emphasis on antecedent knowledge (important facts, concepts, rules, and/or strategies for the content area) and content analysis and design techniques would make…

Utilizing Antecedent Strategies in Early Childhood Settings

ERIC Educational Resources Information Center

McCollow, Meaghan M.; Curiel, Emily S. L.; Davis, Carol Ann; Sainato, Diane

2016-01-01

Much has been written on challenging behavior in young children, and teachers know that that teaching new skills, particularly appropriate ways to communicate, is important when reducing challenging behavior. Strategies that focus on what occurs before the behavior happens are known as "antecedent strategies." Strategies that focus on…

Antecedents and Consequences of the Frequency of Upward and Downward Social Comparisons at Work

ERIC Educational Resources Information Center

Brown, Douglas J.; Ferris, D. Lance; Heller, Daniel; Keeping, Lisa M.

2007-01-01

The current paper examines the dispositional and situational antecedents, as well as the attitudinal and behavioral consequences, of the frequency of upward and downward social comparisons. We predicted social comparison frequency would be influenced by uncertainty-related antecedents, and that social comparisons in organizations would be…

Antecedents and Consequences of Retirement Planning and Decision-Making: A Meta-Analysis and Model

ERIC Educational Resources Information Center

Topa, Gabriela; Moriano, Juan Antonio; Depolo, Marco; Alcover, Carlos-Maria; Morales, J. Francisco

2009-01-01

In this study, meta-analytic procedures were used to examine the relationships between retirement planning, retirement decision and their antecedent and consequences. Our review of the literature generated 341 independent samples obtained from 99 primary studies with 188,222 participants. A small effect size (ES) for antecedents of retirement…

The impact of antecedent trauma exposure and mental health symptoms on the post-deployment mental health of Afghanistan-deployed Australian troops.

PubMed

Searle, Amelia K; Van Hooff, Miranda; Lawrence-Wood, Ellie R; Grace, Blair S; Saccone, Elizabeth J; Davy, Carol P; Lorimer, Michelle; McFarlane, Alexander C

2017-10-01

Both traumatic deployment experiences and antecedent traumas increase personnel's risk of developing PTSD and depression. However, only cross-sectional studies have assessed whether antecedent trauma moderates stress reactions to deployment experiences. This study prospectively examines whether antecedent trauma moderates the association between deployment trauma and post-deployment PTSD and depressive symptoms after accounting for antecedent mental health problems, in a large Australian Defence Force (ADF) sample. In the ADF Middle East Area of Operations Prospective Study, currently-serving military personnel deployed to Afghanistan across 2010-2012 (n = 1122) completed self-reported measures at pre-deployment and post-deployment. Within multivariable regressions, associations between deployment trauma and PTSD and depressive symptoms at post-deployment were stronger for personnel with greater antecedent trauma. However, once adjusting for antecedent mental health problems, these significant interaction effects disappeared. Instead, deployment-related trauma and antecedent mental health problems showed direct associations with post-deployment mental health problems. Antecedent trauma was also indirectly associated with post-deployment mental health problems through antecedent mental health problems. Similar associations were seen with prior combat exposure as a moderator. Antecedent and deployment trauma were reported retrospectively. Self-reports may also suffer from social desirability bias, especially at pre-deployment. Our main effects results support the pervasive and cumulative negative effect of trauma on military personnel, regardless of its source. While antecedent trauma does not amplify personnel's psychological response to deployment trauma, it is indirectly associated with increased post-deployment mental health problems. Antecedent mental health should be considered within pre-deployment prevention programs, and deployment-trauma within post

When Children Learn Programming: Antecedents, Concepts and Outcomes.

ERIC Educational Resources Information Center

Shneiderman, Ben

1985-01-01

Discusses components of an educational plan which supports acquisition of computer programing skills by elementary school children, including antecedent knowledge required (sequencing, similarity, character recognition, part/whole relationships, conditional forms, repetition, and incrementation); initial programing concepts; and outcomes valuable…

Antecedents of Coping with the Disease in Patients with Multiple Sclerosis: A Qualitative Content Analysis

PubMed Central

Dehghani, Ali; Dehghan Nayeri, Nahid; Ebadi, Abbas

2017-01-01

ABSTRACT Background: Due to many physical and mental disorders that occur in multiple sclerosis patients, identifying the factors affecting coping based on the experiences of patients using qualitative study is essential to improve their quality of life. This study was conducted to explore the antecedents of coping with the disease in patients with multiple sclerosis. Methods: This is a qualitative study conducted on 11 patients with multiple sclerosis in 2015 in Tehran, Iran. These patients were selected based on purposive sampling. Data were collected using semi-structured and in-depth interviews and coded. These data were analyzed using the conventional content analysis. The rigor of qualitative data using the criteria proposed by Guba and Lincoln were assessed. Results: Five main categories were revealed: (1) social support, (2) lenience, (3) reliance on faith, (4) knowledge of multiple sclerosis and modeling, and (5) economic and environmental situation. Each category had several distinct sub-categories. Conclusions: The results of this study showed that coping with multiple sclerosis is a complex, multidimensional and contextual concept that is affected by various factors in relation to the context of Iran. The findings of the study can provide the healthcare professionals with deeper recognition and understanding of these antecedents to improve successful coping in Iranian patients suffering from multiple sclerosis. PMID:28097178

Negotiation Performance: Antecedents, Outcomes, and Training Recommendations

DTIC Science & Technology

2011-10-01

Tutorial Cognitive Apprenticeships Instructional Conversations Independent Programmed Instruction Computer-Based Instruction I Rr La...procedural knowledge, as well as the more distal antecedents of individual difference variables (e.g., cognitive ability , personality) and psychological...individual difference variables (e.g., cognitive ability , personality) and psychological processes (e.g., cognitive , motivational, and emotional). This

Workplace Incivility: Worker and Organizational Antecedents and Outcomes

ERIC Educational Resources Information Center

Bartlett, James E., II; Bartlett, Michelle E.; Reio, Thomas G., Jr.

2008-01-01

Unresolved workplace conflicts represent the largest reducible costs to an organization (Keenan & Newton, 1985). As incivility increases (Buhler, 2003; Pearson, Andersson, & Wegner, 2001; Pearson & Porath, 2005) more research is being conducted (Tepper, Duffy, Henle, & Lambert, 2006; Vickers, 2006). This review examined antecedents (variables that…

Effects of Social versus Musical Antecedents on Communication Responsiveness in Five Children with Developmental Disabilities.

PubMed

Braithwaite; Sigafoos

1999-01-01

The present study involved a comparison of social versus musical antecedents on communication responsiveness in five children with developmental disabilities. During the social antecedent condition, the teacher presented opportunities for the children to greet, name objects, and request materials. In the musical antecedent condition, these same opportunities were embedded within a music/singing activity. A reversal design was used to compare the percentage of opportunities with appropriate communication responses across the two conditions. For three of the five children, the musical antecedent condition was associated with higher percentages of appropriate communication responses. For the other two children, the two conditions were associated with approximately equal rates of appropriate communication. Across both conditions, appropriate responses were more likely during opportunities for greeting and requesting than during opportunities to name objects. The results suggest that embedding communication opportunities within a musical activity may lead to increased appropriate communication responses for some children with developmental disabilities.

Effects of hydromechanical loading history and antecedent soil mechanical damage on shallow landslide triggering

NASA Astrophysics Data System (ADS)

Fan, Linfeng; Lehmann, Peter; Or, Dani

2015-10-01

Evidence suggests that the sudden triggering of rainfall-induced shallow landslides is preceded by accumulation of local internal failures in the soil mantle before their abrupt coalescence into a landslide failure plane. The mechanical status of a hillslope at any given time reflects competition between local damage accumulated during antecedent rainfall events and rates of mechanical healing (e.g., rebonding of microcracks and root regrowth). This dynamic interplay between damage accumulation and healing rates determines the initial mechanical state for landslide modeling. We evaluated the roles of these dynamic processes on landslide characteristics and patterns using a hydromechanical landslide-triggering model for a sequence of rainfall scenarios. The progressive nature of soil failure was represented by the fiber bundle model formalism that considers threshold strength of mechanical bonds linking adjacent soil columns and bedrock. The antecedent damage induced by prior rainfall events was expressed by the fraction of broken fibers that gradually regain strength or mechanically heal at rates specific to soil and roots. Results indicate that antecedent damage accelerates landslide initiation relative to pristine (undamaged) hillslopes. The volumes of first triggered landslides increase with increasing antecedent damage; however, for heavily damaged hillslopes, landslide volumes tend to decrease. Elapsed time between rainfall events allows mechanical healing that reduces the effects of antecedent damage. This study proposed a quantitative framework for systematically incorporating hydromechanical loading history and information on precursor events (e.g., such as recorded by acoustic emissions) into shallow landslide hazard assessment.

Antecedents of Intent to Change Careers among Psychologists

ERIC Educational Resources Information Center

Carless, Sally A.; Bernath, Lisa

2007-01-01

The aim of this research was to examine the antecedents of intent to change careers among psychologists. Specifically, the research examined the importance of the following predictor variables: a multi-dimensional model of career commitment (career planning, career resilience, and career identity), job satisfaction, and conscientiousness. A…

Factors Associated With the Benefits of Concurrent Administration of Intratympanic Steroid Injection With Oral Steroids in Patients With Acute Acoustic Trauma.

PubMed

Chang, Young-Soo; Bang, Kanghyun; Choi, Nayeon; Kim, Jong Sei; Lee, Gang-Gyu

2018-06-01

To analyze the factors associated with the benefits of concurrent administration of intratympanic steroid injection (ITSI) and oral steroids in patients with acute acoustic trauma (AAT) incurred during military training. Retrospective analysis. Nineteen patients eligible under the criteria established concerning treatment for AAT were retrospectively reviewed in this study. ITSI treatments were administered simultaneously alongside oral prednisolone. Patients were categorized into two groups depending on the time elapsed between exposure to the noise and treatment initiation: 1) "Early Treatment initiation," defined as the treatment being initiated between 3 and 7 days; and 2) "Delayed treatment initiation," defined as the treatment being initiated in >7 days. Pure-tone air conduction threshold audiometry, to record the pure-tone average (PTA) at 2, 4, and 8 kHz, was conducted upon each patient's initial visit, and 1 month after starting treatment. The degree of hearing gain (hearing gain [dB] = [initial PTA] - [final PTA]) was calculated and used as the metric for determining the treatment's outcome. The initial PTA and treatment onset were adopted as possible associated factors. The mean ages of each group were 22.00 ± 2.12 years and 22.83 ± 2.64 years, respectively (p = 0.28). The initial PTAs were 46.41 ± 12.73 dB and 47.22 ± 14.74 dB, respectively (p = 1.00).In the multivariable linear regression analysis, the initial PTA and the treatment initiation showed a significant association (R = 0.37). The unstandardized regression coefficient of the initial PTA was 0.37 (p = 0.04). Patients with early treatment initiation showed significant improvement in the degree of hearing gain compared with delayed treatment initiation (unstandardized regression coefficient = 12.63, p = 0.01). We demonstrated the importance of early treatment onset for maximizing the benefits of concurrent administration of ITSI with oral steroids in

Traffic crash involvement: experiential driving knowledge and stressful contextual antecedents.

PubMed

Legree, Peter J; Heffner, Tonia S; Psotka, Joseph; Martin, Daniel E; Medsker, Gina J

2003-02-01

Researchers have rarely examined stressful environments and psychological characteristics as predictors of driving behavior in the same study. The authors hypothesized that (a) safer drivers more accurately assess physical and emotional traffic hazards and (b) stress and emotional states elevate crash risk. The hypotheses were evaluated with procedural and declarative tacit driving knowledge tests requiring assessment of emotional and contextual hazards and with accident reports describing crash antecedents, including stressful events and environmental conditions. Analyses identified separate driving knowledge factors corresponding to emotional and contextual hazards that were significantly related to the crash criteria. Accident report analyses show that stress significantly elevates at-fault crash risk. The results demonstrate the importance of experiential knowledge acquired without instruction (procedural or tacit knowledge) and provide safety recommendations.

Developmental Trajectories and Antecedents of Distal Parental Supervision

ERIC Educational Resources Information Center

Laird, Robert D.; Criss, Michael M.; Pettit, Gregory S.; Bates, John E.; Dodge, Kenneth A.

2009-01-01

Groups of adolescents were identified on the basis of developmental trajectories of their families' rules and their parents' knowledge of their activities. Characteristics of the adolescent, peer antisociality, and family context were tested as antecedents. In sum, 404 parent-adolescent dyads provided data for adolescents aged 10-16. Most…

Contextual Antecedents of Informal Feedback in the Workplace

ERIC Educational Resources Information Center

van der Rijt, Janine; van de Wiel, Margje W. J.; Van den Bossche, Piet; Segers, Mien S. R.; Gijselaers, Wim H.

2012-01-01

This study brings together findings from different research angles on informal feedback in the workplace. We explore the individual and joint influences of three contextual antecedents of seeking feedback: support for learning, psychological safety, and work pressure. Based on our survey of 138 employees from various organizations, hierarchical…

Modeling Antecedents of Student Loyalty in Higher Education

ERIC Educational Resources Information Center

Perin, Marcelo Gattermann; Sampaio, Claudio Hoffmann; Simoes, Claudia; de Polvora, Rosiane Polvora

2012-01-01

The purpose of this investigation is to understand the antecedents of student loyalty in the Brazilian context. In particular we address the impact of student trust, commitment and quality perception on loyalty. A quantitative study was conducted among business management student majors from two private Brazilian Higher Education Institutions…

Early Retirement: A Meta-Analysis of Its Antecedent and Subsequent Correlates

PubMed Central

Topa, Gabriela; Depolo, Marco; Alcover, Carlos-Maria

2018-01-01

Early or voluntary retirement (ER) can be defined as the full exit from an organizational job or career path of long duration, decided by individuals of a certain age at the mid or late career before mandatory retirement age, with the aim of reducing their attachment to work and closing a process of gradual psychological disengagement from working life. Given the swinging movements that characterize employment policies, the potential effects of ER—both for individuals and society—are still controversial. This meta-analysis examined the relationships between ER and its antecedent and subsequent correlates. Our review of the literature was generated with 151 empirical studies, containing a total number of 706,937 participants, with a wide range of sample sizes (from N = 27 to N = 127,384 participants) and 380 independent effect sizes (ESs), which included 171 independent samples. A negligible ES value for antecedent correlates of early retirement (family pull, job stress, job satisfaction, and income) was obtained (which ranged from r = −0.13 to 0.19), while a fair ES was obtained for workplace timing for retirement, organizational pressures, financial security, and poor physical and mental health, (ranging from r = 0.28 to 0.25). Regarding ER subsequent correlates, poor ESs were obtained, ranging from r = 0.08 to 0.18 for the relationships with subsequent correlates, and fair ESs only for social engagement (r = −0.25). Examination of the potential moderator variables has been conducted. Only a reduced percentage of variability of primary studies has been explained by moderators. Although potential moderator factors were examined, there are several unknown or not measurable factors which contribute to ER and about which there are very little data available. The discussion is aimed to offer theoretical and empirical implications suggestion in order to improve employee's well-being. PMID:29354075

The influence of antecedent conditions on flood risk in sub-Saharan Africa

NASA Astrophysics Data System (ADS)

Bischiniotis, Konstantinos; van den Hurk, Bart; Coughlan de Perez, Erin; Jongman, Brenden; Veldkamp, Ted; Aerts, Jeroen

2017-04-01

Traditionally, flood risk management has focused on long-term flood protection measures. However, many countries are often not able to afford hard infrastructure that provides sufficient safety levels due to the high investment costs. As a consequence, they rely more on post disaster response and timely warning systems. Most early warning systems have predominantly focused on precipitation as the main predictive factor, having usually lead times of hours or days. However, other variables could also play a role. For instance, anomalous positive water storage, soil saturation and evapotranspiration are physical factors that may influence the length of the flood build-up period. This period can vary from some days to several months before the event and it is particularly important in flood risk management since longer flood warning lead times during this period could result in better flood preparation actions. This study addresses how the antecedent conditions of historical reported flood events over the period 1980 to 2010 in sub-Saharan Africa relate to flood generation. The seasonal-scale conditions are reflected in the Standardized Precipitation Evapotranspiration Index (SPEI), which is calculated using monthly precipitation and temperature data and accounts for the wetness/dryness of an area. Antecedent conditions are separated into a) a short term 'weather-scale' period (0-7 days) and b) a 'seasonal-scale' period (up to 6 months) before the flood event in such a way that they do not overlap. Total 7-day precipitation, which is based on daily meteorological data, was used to evaluate the short-term weather-scale conditions. Using a pair of coordinates, derived from the NatCatSERVICE database on global flood losses, each flood event is positioned on a 0.5°x 0.5° grid cell. The antecedent SPEI conditions of the two periods and their joint influence in flood generation are compared to the same period conditions of the other years of the dataset. First results

Antecedents and behavior-problem outcomes of parental monitoring and psychological control in early adolescence.

PubMed

Pettit, G S; Laird, R D; Dodge, K A; Bates, J E; Criss, M M

2001-01-01

The early childhood antecedents and behavior-problem correlates of monitoring and psychological control were examined in this prospective, longitudinal, multi-informant study. Parenting data were collected during home visit interviews with 440 mothers and their 13-year-old children. Behavior problems (anxiety/depression and delinquent behavior) were assessed via mother, teacher, and/or adolescent reports at ages 8 through 10 years and again at ages 13 through 14. Home-interview data collected at age 5 years were used to measure antecedent parenting (harsh/reactive, positive/proactive), family background (e.g., socioeconomic status), and mother-rated child behavior problems. Consistent with expectation, monitoring was anteceded by a proactive parenting style and by advantageous family-ecological characteristics, and psychological control was anteceded by harsh parenting and by mothers' earlier reports of child externalizing problems. Consistent with prior research, monitoring was associated with fewer delinquent behavior problems. Links between psychological control and adjustment were more complex: High levels of psychological control were associated with more delinquent problems for girls and for teens who were low in preadolescent delinquent problems, and with more anxiety/depression for girls and for teens who were high in preadolescent anxiety/depression.

Racial/ethnic harassment and discrimination, its antecedents, and its effect on job-related outcomes.

PubMed

Bergman, Mindy E; Palmieri, Patrick A; Drasgow, Fritz; Ormerod, Alayne J

2012-01-01

A general model of workplace prejudice acts, their antecedents, and their consequences is proposed and examined in the context of racial/ethnic harassment and discrimination (REHD). Antecedents proposed and tested here include context and climate, whereas consequences proposed and tested here include work, supervisor, and opportunity satisfaction and turnover intentions. The theoretical model is first tested and cross-validated in two ethnically diverse subsamples (approximately 2,000 each). Then, hierarchical multigroup modeling was conducted to determine whether the relationships among REHD, its antecedents, and its outcomes are equivalent across five racial/ethnic groups (N = 1,000 per group) in the U.S. military. This addresses the issue of differential exposure (i.e., varying amounts of stressors across groups) versus differential vulnerability (i.e., discrepant impact of a stressor on outcomes across groups) across racial/ethnic groups. Consistent with expectations, results suggest that although racial/ethnic groups differ in their mean exposure to REHD, the relationships among REHD and its outcomes are the same across race/ethnicity, supporting the differential exposure view. In addition, the results show some differences between antecedents and REHD across race/ethnicity.

Affective Antecedents of the Perceived Effectiveness of Antidrug Advertisements: An Analysis of Adolescents’ Momentary and Retrospective Evaluations

PubMed Central

Vohs, Kathleen D.; Luciana, Monica; Cuthbert, Bruce N.; MacDonald, Angus W.

2013-01-01

Perceived message effectiveness is often used as a diagnostic tool to determine whether a health message is likely to be successful or needs modification before use in an intervention. Yet, published research on the antecedents of perceived effectiveness is scarce and, consequently, little is known about why a message is perceived to be effective or ineffective. The present study’s aim was to identify and test the affective antecedents of perceived effectiveness of antidrug television messages in a sample of 190 adolescents in the 15–19 year age range. Factor-analytical tests of retrospective message evaluation items suggested two dimensions of perceived effectiveness, one that contained items such as convincingness whereas the other contained pleasantness items. Using retrospective data as well as real time valence and arousal ratings, we found that arousal underlies perceived convincingness and valence underlies perceived pleasantness. The results indicated activation of appetitive and defensive motivational systems, which suggests a clear motivational component to the concept of perceived message effectiveness. PMID:21499729

Semi-arid vegetation response to antecedent climate and water balance windows

USGS Publications Warehouse

Thoma, David P.; Munson, Seth M.; Irvine, Kathryn M.; Witwicki, Dana L.; Bunting, Erin

2016-01-01

Questions Can we improve understanding of vegetation response to water availability on monthly time scales in semi-arid environments using remote sensing methods? What climatic or water balance variables and antecedent windows of time associated with these variables best relate to the condition of vegetation? Can we develop credible near-term forecasts from climate data that can be used to prepare for future climate change effects on vegetation? Location Semi-arid grasslands in Capitol Reef National Park, Utah, USA. Methods We built vegetation response models by relating the normalized difference vegetation index (NDVI) from MODIS imagery in Mar–Nov 2000–2013 to antecedent climate and water balance variables preceding the monthly NDVI observations. We compared how climate and water balance variables explained vegetation greenness and then used a multi-model ensemble of climate and water balance models to forecast monthly NDVI for three holdout years. Results Water balance variables explained vegetation greenness to a greater degree than climate variables for most growing season months. Seasonally important variables included measures of antecedent water input and storage in spring, switching to indicators of drought, input or use in summer, followed by antecedent moisture availability in autumn. In spite of similar climates, there was evidence the grazed grassland showed a response to drying conditions 1 mo sooner than the ungrazed grassland. Lead times were generally short early in the growing season and antecedent window durations increased from 3 mo early in the growing season to 1 yr or more as the growing season progressed. Forecast accuracy for three holdout years using a multi-model ensemble of climate and water balance variables outperformed forecasts made with a naïve NDVI climatology. Conclusions We determined the influence of climate and water balance on vegetation at a fine temporal scale, which presents an opportunity to forecast vegetation

Antecedents and Sequelae of Sudden Parental Death in Offspring and Surviving Caregivers

PubMed Central

Melhem, Nadine M.; Walker, Monica; Moritz, Grace; Brent, David A.

2008-01-01

Objectives To examine the psychiatric antecedents that put parents at risk for early death, and the psychological sequelae of bereavement in offspring and caregivers. Design A population-based study. Setting Bereaved families were recruited through the coroner’s records and by advertisement. Control families were recruited by random-digit dialing and advertisement. Participants Families with biological offspring from 7 to 25 years of age in which 1 parent died of suicide, accident, or sudden natural death were included (n=140). Controls (n=99) had 2 living parents and their biological offspring and had no death of a first-degree relative within the past 2 years. Main Outcome Measures Lifetime psychiatric history for deceased parents (probands) and new-onset psychiatric disorders, self-reported symptoms, and functional status in offspring and surviving caregivers. Results Bipolar disorder, substance abuse, and personality disorders are more common in probands who died of suicide or accident than in control parents. Bereaved offspring and their caregivers were at increased risk for depression and posttraumatic stress disorder. Bereaved offspring had a 3-fold (95% confidence interval, 1.3–7.0) increased risk of depression, even after controlling for antecedent and concomitant risk factors. Offspring bereaved by suicide showed similar outcomes compared with those bereaved by other types of death. Conclusions Bereavement conveys an increased risk of depression and posttraumatic stress disorder above and beyond other vulnerability factors. Better integration of medical and psychiatric care may prevent premature parental death, but once it occurs, physicians should be alert to the increased risk for depression and posttraumatic stress disorder in bereaved offspring and their caregivers. PMID:18458185

Antecedent occipital alpha band activity predicts the impact of oculomotor events in perceptual switching

PubMed Central

Nakatani, Hironori; van Leeuwen, Cees

2013-01-01

Oculomotor events such as blinks and saccades transiently interrupt the visual input and, even though this mostly goes undetected, these brief interruptions could still influence the percept. In particular, both blinking and saccades facilitate switching in ambiguous figures such as the Necker cube. To investigate the neural state antecedent to these oculomotor events during the perception of an ambiguous figure, we measured the human scalp electroencephalogram (EEG). When blinking led to perceptual switching, antecedent occipital alpha band activity exhibited a transient increase in amplitude. When a saccade led to switching, a series of transient increases and decreases in amplitude was observed in the antecedent occipital alpha band activity. Our results suggest that the state of occipital alpha band activity predicts the impact of oculomotor events on the percept. PMID:23745106

Student Trust and Its Antecedents in Higher Education.

ERIC Educational Resources Information Center

Ghosh, Amit K.; Whipple, Thomas W.; Bryan, Glenn

2001-01-01

Based on the belief that long-term marketing costs for colleges can be reduced by focusing on building trust, studied the antecedents to trust in students and alumni. Data collected from 250 students and alumni indicated that strategic plans that improve perceived sincerity, expertise, and congeniality of a college can be successfully used to…

Antecedents of Medical Workplace Violence in South China

ERIC Educational Resources Information Center

Cai, Wenzhi; Deng, Ling; Liu, Meng; Yu, Min

2011-01-01

It has been noted that workplace violence most frequently occurs in hospitals. The purpose of this study was to explore antecedents of workplace violence in south China. The authors conducted face-to-face, in-depth, semistructured interviews with 30 hospital staff who had experienced at least one incident of workplace violence from patients during…

The use of structural analysis to develop antecedent-based interventions for students with autism.

PubMed

Stichter, Janine P; Randolph, Jena K; Kay, Denise; Gage, Nicholas

2009-06-01

Evidence continues to maintain that the use of antecedent variables (i.e., instructional practices, and environmental characteristics) increase prosocial and adaptive behaviors of students with disabilities (e.g., Kern et al. in J Appl Behav Anal 27(1):7-19, 1994; Stichter et al. in Behav Disord 30:401-418, 2005). This study extends the literature by systematically utilizing practitioner-implemented structural analyzes within school settings to determine antecedent variables affecting the prosocial behavior of students with autism. Optimal antecedents were combined into intervention packages and assessed utilizing a multiple baseline design across settings. All three students demonstrated improvement across all three settings. Rates of engagement and social interaction were obtained from classroom peers to serve as benchmark data. Findings indicate that practitioners can implement structural analyzes and design corresponding interventions for students with ASD within educational settings.

Antecedents and Consequences of Federal Bid Protests

DTIC Science & Technology

2015-04-30

contractor performance. While these effects have been anecdotally espoused by practitioners, this research is the first to quantitatively test the... Research design : Qualitative, quantitative , and mixed methods approaches (2nd ed.). Thousand Oaks, CA: Sage. DoD Inspector General (DoDIG). (2009a, April...contracting personnel, this research tests a model of antecedents to and consequences of the fear of a protest. Survey data was obtained from a sample of 350

Sharing health information online in South Korea: motives, topics, and antecedents.

PubMed

Kye, S Y; Shim, M; Kim, Y C; Park, K

2017-10-11

This study aimed to examine the motives, topics and antecedents for sharing health information online among Korean Internet users. Eight hundred adults completed a web-based survey exploring the motives; topics; physical, cognitive, affective and environmental factors; and experiences relating to sharing health information online. The motives for not sharing information included information absence and inappropriateness. The most preferred topic was disease. Good subjective health was significantly associated with frequent information sharing while individuals with a history of disease involving themselves or family members were more likely to share health information than were those without such a history. Further, a higher level of depressed mood was related to a higher level of sharing. Internet-related self-efficacy and trust in information delivery channels were positively related to sharing. Future research could extend the factors related to information sharing to include the evaluation of shared information. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Attitudinal and motivational antecedents of participation in voluntary employee development activities.

PubMed

Hurtz, Gregory M; Williams, Kevin J

2009-05-01

This study investigated factors influencing ongoing participation in employee development activities. A multiple-indicator structural equation model building on the theory of planned behavior and prior employee development literature was tested with a survey across 4 organizations on 2 occasions. The model uses reactions to past participation and past supportiveness of the social and organizational environment as indirect antecedents of participation, filtered through their impact on attitudes and behavioral intentions toward future participation. Learning goal orientation also influenced attitudes toward participation. Whereas personal control over participation and higher levels of voluntariness were negatively related to participation, intentions to participate and availability of opportunities arose as strong predictors of higher participation rates. Many significant hypothesized paths were found, and 85% of the variance in participation was explained by the model variables. Increasing employee awareness of opportunities and managing positive attitudes toward those opportunities are recommended as key factors for increasing participation rates. (c) 2009 APA, all rights reserved.

Antecedent rivers and early rifting: a case study from the Plio-Pleistocene Corinth rift, Greece

NASA Astrophysics Data System (ADS)

Hemelsdaël, Romain; Ford, Mary; Malartre, Fabrice

2016-04-01

facies distribution throughout the early rift evolution. We show that the length scale of fluvial facies transitions is greater than and therefore not related to fault spacing. First order facies variations instead occur at the scale of the full antecedent fluvial system. Strike-parallel subsidence variations in individual fault blocks represent a second order controlling factor on stratigraphic architecture. As depocentres enlarged through time, sediments progressively filled palaeorelief, and formed a continuous alluvial plain above active faults. There was limited creation of footwall relief and thus no significant consequent drainage system developed. Here, instead of being diverted toward subsiding zones, the drainage system overfilled the whole rift from the onset of faulting. Moreover, the zones of maximum subsidence on individual faults are aligned across strike parallel to the persistent fluvial axis. This implies that long-term sediment loading influenced the growth of normal faults. We conclude that a major antecedent drainage system inherited from the Hellenide mountain belt supplied high volumes of coarse sediment from the onset of faulting in the western Corinth rift (around 4 Ma). These observations demonstrate that antecedent drainage systems can be important in the tectono-sedimentary evolution of rift basins.

Antecedents of Gray Divorce: A Life Course Perspective.

PubMed

Lin, I-Fen; Brown, Susan L; Wright, Matthew R; Hammersmith, Anna M

2016-12-16

Increasingly, older adults are experiencing divorce, yet little is known about the risk factors associated with divorce after age 50 (termed "gray divorce"). Guided by a life course perspective, our study examined whether key later life turning points are related to gray divorce. We used data from the 1998-2012 Health and Retirement Study to conduct a prospective, couple-level discrete-time event history analysis of the antecedents of gray divorce. Our models incorporated key turning points (empty nest, retirement, and poor health) as well as demographic characteristics and economic resources. Contrary to our expectations, the onset of an empty nest, the wife's or husband's retirement, and the wife's or husband's chronic conditions were unrelated to the likelihood of gray divorce. Rather, factors traditionally associated with divorce among younger adults were also salient for older adults. Marital duration, marital quality, home ownership, and wealth were negatively related to the risk of gray divorce. Gray divorce is especially likely to occur among couples who are socially and economically disadvantaged, raising new questions about the consequences of gray divorce for individual health and well-being. © The Author 2016. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

Characterisation of aggression in Huntington's disease: rates, types and antecedents in an inpatient rehabilitation setting.

PubMed

Brown, Anahita; Sewell, Katherine; Fisher, Caroline A

2017-10-01

To systematically review aggression in an inpatient Huntington's cohort examining rates, types and antecedents. Although the prevalence of aggression in Huntington's disease is high, research into this problematic behaviour has been limited. Few studies have investigated the nature of aggressive behaviour in Huntington's disease or antecedents that contribute to its occurrence. A systematic, double-coded, electronic medical file audit. The electronic hospital medical records of 10 people with Huntington's disease admitted to a brain disorders unit were audited for a 90-day period using the Overt Aggression Scale-Modified for Neurorehabilitation framework, yielding 900 days of clinical data. Nine of 10 clients exhibited aggression during the audit period. Both verbal (37·1%) aggression and physical aggression were common (33·8%), along with episodes of mixed verbal and physical aggression (15·2%), while aggression to objects/furniture was less prevalent (5·5%). The most common antecedent was physical guidance with personal care, far exceeding any other documented antecedents, and acting as the most common trigger for four of the nine clients who exhibited aggression. For the remaining five clients, there was intraindividual heterogeneity in susceptibility to specific antecedents. In Huntington's sufferers at mid- to late stages following disease onset, particular care should be made with personal care assistance due to the propensity for these procedures to elicit an episode of aggression. However, given the degree of intraindividual heterogeneity in susceptibility to specific antecedents observed in the present study, individualised behaviour support plans and sensory modulation interventions may be the most useful in identifying triggers and managing aggressive episodes. Rates of aggression in Huntington's disease inpatients can be high. Knowledge of potential triggers, such as personal care, is important for nursing and care staff, so that attempts can be

Childhood antecedents of adolescent personality disorders.

PubMed

Bernstein, D P; Cohen, P; Skodol, A; Bezirganian, S; Brook, J S

1996-07-01

The purpose of this study was to investigate the childhood antecedents of personality disorders that are diagnosed in adolescence. A randomly selected community sample of 641 youths was assessed initially in childhood and followed longitudinally over 10 years. Childhood behavior ratings were based on maternal report; diagnoses of adolescent personality disorders were based on data obtained from both maternal and youth informants. Four composite measures of childhood behavior problems were used: conduct problems, depressive symptoms, anxiety/fear, and immaturity. Adolescent personality disorders were considered present only if the disorders persisted over a 2-year period. For all analyses, personality disorders were grouped into the three clusters (A, B, and C) of DSM-III-R. Logistic regression analyses indicated that all four of the putative childhood antecedents were associated with greater odds of an adolescent personality disorder 10 years later. Childhood conduct problems remained an independent predictor of personality disorders in all three clusters, even when other childhood problems were included in the same regression model. Additionally, depressive symptoms emerged as an independent predictor of cluster A personality disorders in boys, while immaturity was an independent predictor of cluster B personality disorders in girls. No moderating effects of age at time of childhood assessment were found. These results support the view that personality disorders can be traced to childhood emotional and behavioral disturbances and suggest that these problems have both general and specific relationships to adolescent personality functioning.

Classification of antecedents towards safety use of health information technology: A systematic review.

PubMed

Salahuddin, Lizawati; Ismail, Zuraini

2015-11-01

This paper provides a systematic review of safety use of health information technology (IT). The first objective is to identify the antecedents towards safety use of health IT by conducting systematic literature review (SLR). The second objective is to classify the identified antecedents based on the work system in Systems Engineering Initiative for Patient Safety (SEIPS) model and an extension of DeLone and McLean (D&M) information system (IS) success model. A systematic literature review (SLR) was conducted from peer-reviewed scholarly publications between January 2000 and July 2014. SLR was carried out and reported based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. The related articles were identified by searching the articles published in Science Direct, Medline, EMBASE, and CINAHL databases. Data extracted from the resultant studies included are to be analysed based on the work system in Systems Engineering Initiative for Patient Safety (SEIPS) model, and also from the extended DeLone and McLean (D&M) information system (IS) success model. 55 articles delineated to be antecedents that influenced the safety use of health IT were included for review. Antecedents were identified and then classified into five key categories. The categories are (1) person, (2) technology, (3) tasks, (4) organization, and (5) environment. Specifically, person is attributed by competence while technology is associated to system quality, information quality, and service quality. Tasks are attributed by task-related stressor. Organisation is related to training, organisation resources, and teamwork. Lastly, environment is attributed by physical layout, and noise. This review provides evidence that the antecedents for safety use of health IT originated from both social and technical aspects. However, inappropriate health IT usage potentially increases the incidence of errors and produces new safety risks. The review cautions future

Antecedents of narcotic use and addiction. A study of 898 Vietnam veterans.

PubMed

Helzer, J E; Robins, L N; Davis, D H

1976-02-01

Previous studies of predictors of narcotic abuse have been retrospective and based on samples of long-term addicts obtained from legal or medical channels. There are several methodological problems in this approach. The present study is an attempt to test certain alleged predictors of narcotic use in a cohort of 898 Vietnam veterans. The design overcomes several of the methodological weaknesses of previous studies. Eight variables which have been reported as predictors of drug use or addiction in the drug literature were inquired about during a personal interview which included the premilitary life of each subject. The antecedent variables were socioeconomic background, inner city residence, psychiatric illness, broken home, race, employment history, education and antisocial history. Using information obtained from interviews and military records, we then tested the predictive value of each of these antecedents by comparing narcotic used and addiction in Vietman and use after Vietnam in men differing with respect to each antecedent. Results indicate that some of the variables were very poor, and others very good predictors of the various levels of narcotic involvement. The predictive value and overall importance of each of the variables we tested are discussed.

A Model of Consumer Response to Over-the-Counter Drug Advertising: Antecedents and Influencing Factors.

PubMed

Huh, Jisu; Delorme, Denise E; Reid, Leonard N

2016-01-01

Given the importance of over-the-counter (OTC) drugs in the health care marketplace and lack of systematic research on OTC drug advertising (OTCA) effects, this study tested a theory-based, product category-specific OTCA effects model. Structural equation modeling analysis of data for 1 OTC drug category, analgesics, supported the proposed model, explaining the OTCA effect process from key consumer antecedents to ad involvement, from ad involvement to ad attention, from ad attention to cognitive responses, then to affective/evaluative responses, leading to the final behavioral outcome. Several noteworthy patterns also emerged: (a) Product involvement was directly linked to ad attention, rather than exerting an indirect influence through ad involvement; (b) ad attention was significantly related to both cognitive and affective/evaluative responses to different degrees, with stronger links to cognitive responses; and (c) ad-prompted actions were influenced by both ad trust and ad attitude.

Environmental Stress and Biobehavioral Antecedents of Coronary Heart Disease.

ERIC Educational Resources Information Center

Krantz, David S.; And Others

1988-01-01

Provides an overview of research on the biobehavioral antecedents of coronary heart disease, including stressful occupational settings characterized by high demands and little control over the job, and the Type A pattern, particularly hostility and mode of anger expression (anger-in). Discusses research on physiologic responsiveness (reactivity)…

Antecedents to High Educational Achievement Among Southwestern Mexican Americans.

ERIC Educational Resources Information Center

Amodeo, Luiza B.; Martin, Jeanette

The study examined antecedents to high educational achievement of 42 selected Mexican Americans (university professors, third-year law students, and third- and fourth-year medical students) in 5 southwestern universities (4 in California and 1 in New Mexico). Two related considerations prompted the investigation: failure of many Mexican Americans…

Antecedents of Neonatal Encephalopathy in the Vermont Oxford Network Encephalopathy Registry

PubMed Central

Bingham, Peter; Edwards, Erika M.; Horbar, Jeffrey D.; Kenny, Michael J.; Inder, Terrie; Pfister, Robert H.; Raju, Tonse; Soll, Roger F.

2012-01-01

BACKGROUND: Neonatal encephalopathy (NE) is a major predictor of death and long-term neurologic disability, but there are few studies of antecedents of NE. OBJECTIVES: To identify antecedents in a large registry of infants who had NE. METHODS: This was a maternal and infant record review of 4165 singleton neonates, gestational age of ≥36 weeks, meeting criteria for inclusion in the Vermont Oxford Network Neonatal Encephalopathy Registry. RESULTS: Clinically recognized seizures were the most prevalent condition (60%); 49% had a 5-minute Apgar score of ≤3 and 18% had a reduced level of consciousness. An abnormal maternal or fetal condition predated labor in 46%; maternal hypertension (16%) or small for gestational age (16%) were the most frequent risk factors. In 8%, birth defects were identified. The most prevalent birth complication was elevated maternal temperature in labor of ≥37.5°C in 27% of mothers with documented temperatures compared with 2% to 3.2% in controls in population-based studies. Clinical chorioamnionitis, prolonged membrane rupture, and maternal hypothyroidism exceeded rates in published controls. Acute asphyxial indicators were reported in 15% (in 35% if fetal bradycardia included) and inflammatory indicators in 24%. Almost one-half had neither asphyxial nor inflammatory indicators. Although most infants with NE were observably ill since the first minutes of life, only 54% of placentas were submitted for examination. CONCLUSIONS: Clinically recognized asphyxial birth events, indicators of intrauterine exposure to inflammation, fetal growth restriction, and birth defects were each observed in term infants with NE, but much of NE in this large registry remained unexplained. PMID:23071210

The Influence of the Antecedent Variable on the Teachers' Performance through Achievement Motivation in Senior High School

ERIC Educational Resources Information Center

Dewi, Erni R.; Bundu, Patta; Tahmir, Suradi

2016-01-01

This study aims at analysing whether the antecedent variable directly affects the performance of the high school teachers or not. In addition, this research strives to find out whether the antecedent variable indirectly affects the teachers' performance through the achievement motivation of the high school teachers. It was a quantitative research…

Teachers' Perceptions of Administrative Support and Antecedents of Turnover

ERIC Educational Resources Information Center

Russell, Elizabeth Morgan; Williams, Sue W.; Gleason-Gomez, Cheryl

2010-01-01

The purpose of this pilot study was to determine the degree to which teachers' age, perceptions of fair pay, receipt of employer-sponsored health insurance, and administrative support, as operationalized by the Competing Values Framework, predicted antecedents of turnover. Teachers' thoughts of leaving their current job and commitment to a center…

Parental Antecedents of Need for Approval: A Longitudinal Study.

ERIC Educational Resources Information Center

Lobel, Thalma E.

1982-01-01

Examined antecedents of two components of need for approval (the approach component and the avoidance component) on a longitudinal basis. For females, need for approval was positively related to mothers' withdrawal of love and the avoidance component was negatively related to mothers' encouragement of their daughters to fight back. (Author)

Information Theory for Information Science: Antecedents, Philosophy, and Applications

ERIC Educational Resources Information Center

Losee, Robert M.

2017-01-01

This paper provides an historical overview of the theoretical antecedents leading to information theory, specifically those useful for understanding and teaching information science and systems. Information may be discussed in a philosophical manner and at the same time be measureable. This notion of information can thus be the subject of…

Epidemiology of inflammatory bowel disease among participants of the Millennium Cohort: incidence, deployment-related risk factors, and antecedent episodes of infectious gastroenteritis.

PubMed

Porter, C K; Welsh, M; Riddle, M S; Nieh, C; Boyko, E J; Gackstetter, G; Hooper, T I

2017-04-01

Crohn's disease (CD) and ulcerative colitis (UC) are two pathotypes of inflammatory bowel disease (IBD) with unique pathology, risk factors and significant morbidity. To estimate incidence and identify IBD risk factors in a US military population, a healthy subset of the US population, using information from the Millennium Cohort Study. Incident IBD was identified from medical encounters from 2001 to 2009 or by self-report. Our primary risk factor of interest, infectious gastroenteritis, was identified from medical encounters and self-reported post-deployment health assessments. Other potential risk factors were assessed using self-reported survey responses and military personnel files. Hazard ratios were estimated using Cox proportional hazards analysis. We estimated 23.2 and 21.9 diagnoses per 100 000 person-years, respectively, for CD and UC. For CD, significant risk factors included [adjusted hazard ratio (aHR), 95% confidence interval]: current smoking (aHR: 2.7, 1.4-5.1), two life stressors (aHR: 2.8, 1.4-5.6) and prior irritable bowel syndrome (aHR: 4.7, 1.5-15.2). There was no significant association with prior infectious gastroenteritis. There was an apparent dose-response relationship between UC risk and an increasing number of life stressors. In addition, antecedent infectious gastroenteritis was associated with almost a three-fold increase in UC risk (aHR: 2.9, 1.4-6.0). Moderate alcohol consumption (aHR: 0.4, 0.2-0.6) was associated with lower UC risk. Stressful conditions and the high risk of infectious gastroenteritis in deployment operations may play a role in the development of IBD in military populations. However, observed differences in risk factors for UC and CD warrant further investigation. © 2017 John Wiley & Sons Ltd.

Influence of well-known risk factors for hearing loss in a longitudinal twin study.

PubMed

Johnson, Ann-Christin; Bogo, Renata; Farah, Ahmed; Karlsson, Kjell K; Muhr, Per; Sjöström, Mattias; Svensson, Eva B; Skjönsberg, Åsa; Svartengren, Magnus

2017-01-01

The aim was to investigate the influence of environmental exposures on hearing loss in a twin cohort. Male twins born 1914-1958, representing an unscreened population, were tested for hearing loss at two occasions, 18 years apart. Clinical audiometry and a questionnaire were performed at both time points in this longitudinal study. Noise and solvent exposure were assessed using occupational work codes and a job exposure matrix. Hearing impairment was investigated using two different pure tone averages: PTA4 (0.5, 1, 2, and 4 kHz) and HPTA4 (3, 4, 6, and 8 kHz). Age affected all outcome measures. Noise exposure between time point one and two affected the threshold shifts of PTA4 and HPTA4 more in participants with a pre-existing hearing loss at time point one. Lifetime occupational noise exposure was a risk factor especially for the low-frequency hearing threshold PTA4. Firearm use was a statistically significant risk factor for all outcome measures. Pre-existing hearing loss can increase the risk of hearing impairment due to occupational noise exposure. An increased risk for NIHL was also seen in the group with exposures below 85 dB(A), a result that indicates awareness of NIHL should be raised even for those working in environments where sound levels are below 85 dB(A).

Antecedents of open source software adoption in health care organizations: a qualitative survey of experts in Canada.

PubMed

Marsan, Josianne; Paré, Guy

2013-08-01

Open source software (OSS) adoption and use in health care organizations (HCOs) is relatively low in developed countries, but several contextual factors have recently encouraged the consideration of the possible role of OSS in information technology (IT) application portfolios. This article aims at developing a research model for investigating the antecedents of OSS adoption decisions in HCOs. Based on a conceptual framework derived from a synthesis of the literature on IT adoption in organizations, we conducted 18 semi-structured interviews with IT experts from all levels of the Province of Quebec's health and social services sector in Canada. We also interviewed 10 IT suppliers in the province. A qualitative data analysis of the interviews was performed to identify major antecedents of OSS adoption decisions in HCOs. Eight factors associated with three distinct theoretical perspectives influence OSS adoption. More specifically, they are associated with the classical diffusion of innovations theory, the theory of resources, as well as institutional theory and its spin-off, the organizing vision theory. The factors fall under three categories: the characteristics of OSS as an innovation, the characteristics of the HCO with respect to its ability to absorb OSS, and the characteristics of the external environment with respect to institutional pressures and public discourse surrounding OSS. We shed light on two novel factors that closely interact with each other: (1) interest of the health care community in the public discourse surrounding OSS, and (2) clarity, consistency and richness of this discourse, whether found in magazines or other media. OSS still raises many questions and presents several challenges for HCOs. It is crucial that the different factors that explain an HCO's decision on OSS adoption be considered simultaneously. Doing so allows a better understanding of HCOs' rationale when deciding to adopt, or not to adopt, OSS. Copyright © 2013 Elsevier

Antecedent Avian Immunity Limits Tangential Transmission of West Nile Virus to Humans

PubMed Central

Kwan, Jennifer L.; Kluh, Susanne; Reisen, William K.

2012-01-01

Background West Nile virus (WNV) is a mosquito-borne flavivirus maintained and amplified among birds and tangentially transmitted to humans and horses which may develop terminal neuroinvasive disease. Outbreaks typically have a three-year pattern of silent introduction, rapid amplification and subsidence, followed by intermittent recrudescence. Our hypothesis that amplification to outbreak levels is contingent upon antecedent seroprevalence within maintenance host populations was tested by tracking WNV transmission in Los Angeles, California from 2003 through 2011. Methods Prevalence of antibodies against WNV was monitored weekly in House Finches and House Sparrows. Tangential or spillover transmission was measured by seroconversions in sentinel chickens and by the number of West Nile neuroinvasive disease (WNND) cases reported to the Los Angeles County Department of Public Health. Results Elevated seroprevalence in these avian populations was associated with the subsidence of outbreaks and in the antecedent dampening of amplification during succeeding years. Dilution of seroprevalence by recruitment resulted in the progressive loss of herd immunity following the 2004 outbreak, leading to recrudescence during 2008 and 2011. WNV appeared to be a significant cause of death in these avian species, because the survivorship of antibody positive birds significantly exceeded that of antibody negative birds. Cross-correlation analysis showed that seroprevalence was negatively correlated prior to the onset of human cases and then positively correlated, peaking at 4–6 weeks after the onset of tangential transmission. Antecedent seroprevalence during winter (Jan – Mar) was negatively correlated with the number of WNND cases during the succeeding summer (Jul–Sep). Conclusions Herd immunity levels within after hatching year avian maintenance host populations <10% during the antecedent late winter and spring period were followed on three occasions by outbreaks of WNND

A study on risk factors and diagnostic efficiency of posthepatectomy liver failure in the nonobstructive jaundice.

PubMed

Wang, He; Lu, Shi-Chun; He, Lei; Dong, Jia-Hong

2018-02-01

Liver failure remains as the most common complication and cause of death after hepatectomy, and continues to be a challenge for doctors.t test and χ test were used for single factor analysis of data-related variables, then results were introduced into the model to undergo the multiple factors logistic regression analysis. Pearson correlation analysis was performed for related postoperative indexes, and a diagnostic evaluation was performed using the receiver operating characteristic (ROC) of postoperative indexes.Differences in age, body mass index (BMI), portal vein hypertension, bile duct cancer, total bilirubin, alkaline phosphatase (ALP), gamma-glutamyl transpeptidase (GGT), operation time, cumulative portal vein occlusion time, intraoperative blood volume, residual liver volume (RLV)/entire live rvolume, ascites volume at postoperative day (POD)3, supplemental albumin amount at POD3, hospitalization time after operation, and the prothrombin activity (PTA) were statistically significant. Furthermore, there were significant differences in total bilirubin and the supplemental albumin amount at POD3. ROC analysis of the average PTA, albumin amounts, ascites volume at POD3, and their combined diagnosis were performed, which had diagnostic value for postoperative liver failure (area under the curve (AUC): 0.895, AUC: 0.798, AUC: 0.775, and AUC: 0.903).Preoperative total bilirubin level and the supplemental albumin amount at POD3 were independent risk factors. PTA can be used as the index of postoperative liver failure, and the combined diagnosis of the indexes can improve the early prediction of postoperative liver failure.

Antecedents of Suicide among Youth Aged 11-15: A Multistate Mixed Methods Analysis.

PubMed

Holland, Kristin M; Vivolo-Kantor, Alana M; Logan, Joseph E; Leemis, Ruth W

2017-07-01

Suicide is the second leading cause of death for youth aged 11 to 15, taking over 5,500 lives from 2003 to 2014. Suicide among this age group is linked to risk factors such as mental health problems, family history of suicidal behavior, biological factors, family problems, and peer victimization and bullying. However, few studies have examined the frequency with which such problems occur among youth suicide decedents or the context in which decedents experience these risk factors and the complex interplay of risk that results in a decedent's decision to take his/her own life. Data from a random sample of 482 youth (ages 11-15) suicide cases captured in the National Violent Death Reporting System from 2003 to 2014 were analyzed. The sample had fewer girls than boys (31 vs. 69 %) and comprised primarily White youth (79 %), but also African Americans (13 %), Asians (4 %), and youth of other races (4 %). Narrative data from coroner/medical examiner and law enforcement investigative reports were coded and analyzed to identify common behavioral patterns that preceded suicide. Emergent themes were quantified and examined using content and constant comparative analysis. Themes regarding antecedents across multiple levels of the social ecology emerged. Relationship problems, particularly with parents, were the most common suicide antecedent. Also, a pattern demonstrating a consistent progression toward suicidal behavior emerged from the data. Narratives indicated that youth were commonly exposed to one or more problems, often resulting in feelings of loneliness and burdensomeness, which progressed toward thoughts and sometimes plans for or attempts at suicide. Continued exposure to negative experiences and thoughts/plans about suicide, and/or self-injurious acts resulted in an acquired capacity to self-harm, eventually leading to suicide. These findings provide support for theories of suicidal behavior and highlight the importance of multi-level, comprehensive

Applying generalizability theory to examine the antecedents of perceived coach support.

PubMed

Coussens, Adam Howard; Rees, Tim; Freeman, Paul

2015-02-01

Although social support is integral to the coaching process, there is only a limited understanding of the antecedents of perceived coach support. We applied generalizability theory to examine perceived coach support and its antecedents at perceiver, provider, and relational levels of analysis. Two studies were conducted in which athletes rated the degree to which they identified with a selection of coaches, and the personality, competency, and supportiveness of those coaches. Univariate analyses demonstrated that the relational component accounted for a significant amount of variance in perceived coach support in both studies. Multivariate analyses demonstrated that when athletes perceive specific coaches to be highly agreeable, competent, and individuals with whom they share a common identity, they also perceive these same coaches to be particularly supportive in comparison with other coaches.

Antecedents and Consequences of Situational Interest

PubMed Central

Linnenbrink-Garcia, Lisa; Patall, Erika A.; Messersmith, Emily E.

2015-01-01

Background There is a growing body of research on situational interest (SI). Yet, we still know relatively little about how SI is supported in the classroom and the academic benefits of SI. Aims The current study investigated (1) contextual antecedents of SI, (2) potential benefits of SI for academic outcomes, and (3) SI as a mediator of classroom practices to academic outcomes. Sample Participants were 126 male and female adolescents (mean age = 14.6 years) who took part in a science course during a 3-week residential summer program for talented adolescents. Method Participants completed self-report measures prior to the start of the summer program and at the end of the program. Summer program instructors completed ratings of students’ engagement during the program. Results Multiple regression analyses were conducted to investigate the three study aims. After controlling for initial individual interest, perceived choice, instructor approachability, and course connections to real life were statistically significant predictors of SI during the summer program, with varying relations observed based on the form of SI (triggered, maintained-feeling, maintained-value). SI was positively related to individual interest and perceived competence in science at the end of the program as well as teacher-rated engagement; SI also mediated the relations of classroom practices to these outcomes. Conclusion Results suggest that classroom practices shape SI. In turn, SI supports motivation and engagement. Moreover, differentiated antecedents and outcomes of the three subcomponents of SI were identified, highlighting the utility of this three-component approach for studying SI. PMID:24175684

Antecedents and consequences of situational interest.

PubMed

Linnenbrink-Garcia, Lisa; Patall, Erika A; Messersmith, Emily E

2013-12-01

There is a growing body of research on situational interest (SI). Yet, we still know relatively little about how SI is supported in the classroom and the academic benefits of SI. The current study investigated (1) contextual antecedents of SI; (2) potential benefits of SI for academic outcomes; and (3) SI as a mediator of classroom practices to academic outcomes. Participants were 126 male and female adolescents (mean age = 14.6 years) who took part in a science course during a 3-week residential summer programme for talented adolescents. Participants completed self-report measures prior to the start of the summer programme and at the end of the programme. Summer programme instructors completed ratings of students' engagement during the programme. Multiple regression analyses were conducted to investigate the three study aims. After controlling for initial individual interest, perceived choice, instructor approachability, and course connections to real life were statistically significant predictors of SI during the summer programme, with varying associations observed based on the form of SI (triggered, maintained-feeling, and maintained-value). SI was positively related to individual interest and perceived competence in science at the end of the programme as well as teacher-rated engagement; SI also mediated the associations of classroom practices with these outcomes. Results suggest that classroom practices shape SI. In turn, SI supports motivation and engagement. Moreover, differentiated antecedents and outcomes of the three sub-components of SI were identified, highlighting the utility of this three-component approach for studying SI. © 2012 The British Psychological Society.

Recurrent antecedent hypoglycemia alters neuronal oxidative metabolism in vivo.

PubMed

Jiang, Lihong; Herzog, Raimund I; Mason, Graeme F; de Graaf, Robin A; Rothman, Douglas L; Sherwin, Robert S; Behar, Kevin L

2009-06-01

The objective of this study was to characterize the changes in brain metabolism caused by antecedent recurrent hypoglycemia under euglycemic and hypoglycemic conditions in a rat model and to test the hypothesis that recurrent hypoglycemia changes the brain's capacity to utilize different energy substrates. Rats exposed to recurrent insulin-induced hypoglycemia for 3 days (3dRH rats) and untreated controls were subject to the following protocols: [2-(13)C]acetate infusion under euglycemic conditions (n = 8), [1-(13)C]glucose and unlabeled acetate coinfusion under euglycemic conditions (n = 8), and [2-(13)C]acetate infusion during a hyperinsulinemic-hypoglycemic clamp (n = 8). In vivo nuclear magnetic resonance spectroscopy was used to monitor the rise of(13)C-labeling in brain metabolites for the calculation of brain metabolic fluxes using a neuron-astrocyte model. At euglycemia, antecedent recurrent hypoglycemia increased whole-brain glucose metabolism by 43 +/- 4% (P < 0.01 vs. controls), largely due to higher glucose utilization in neurons. Although acetate metabolism remained the same, control and 3dRH animals showed a distinctly different response to acute hypoglycemia: controls decreased pyruvate dehydrogenase (PDH) flux in astrocytes by 64 +/- 20% (P = 0.01), whereas it increased by 37 +/- 3% in neurons (P = 0.01). The 3dRH animals decreased PDH flux in both compartments (-75 +/- 20% in astrocytes, P < 0.001, and -36 +/- 4% in neurons, P = 0.005). Thus, acute hypoglycemia reduced total brain tricarboxylic acid cycle activity in 3dRH animals (-37 +/- 4%, P = 0.001), but not in controls. Our findings suggest that after antecedent hypoglycemia, glucose utilization is increased at euglycemia and decreased after acute hypoglycemia, which was not the case in controls. These findings may help to identify better methods of preserving brain function and reducing injury during acute hypoglycemia.

Antecedents and Consequences of Residential Choice and School Transfer

ERIC Educational Resources Information Center

Falbo, Toni; Glover, Robert W.; Holcombe, W. Lee; Stokes, S. Lynne

2005-01-01

This article examines the antecedents and consequences of residential choice and school transfers within one of the eight largest urban school districts in Texas. This study is based on survey data from a representative sample of parents of K-12 students enrolled in this district. In addition to demographic characteristics of the family, the…

QR in Child Grammar: Evidence from Antecedent-Contained Deletion

ERIC Educational Resources Information Center

Syrett, Kristen; Lidz, Jeffrey

2009-01-01

We show that 4-year-olds assign the correct interpretation to antecedent-contained deletion (ACD) sentences because they have the correct representation of these structures. This representation involves Quantifier Raising (QR) of a Quantificational Noun Phrase (QNP) that must move out of the site of the verb phrase in which it is contained to…

Role of cortisol in the pathogenesis of deficient counterregulation after antecedent hypoglycemia in normal humans.

PubMed Central

Davis, S N; Shavers, C; Costa, F; Mosqueda-Garcia, R

1996-01-01

The aim of this study was to determine the role of increased plasma cortisol levels in the pathogenesis of hypoglycemia-associated autonomic failure. Experiments were carried out on 16 lean, healthy, overnight fasted male subjects. One group (n = 8) underwent two separate, 2-d randomized experiments separated by at least 2 mo. On day 1 insulin was infused at a rate of 1.5 mU/kg per min and 2 h clamped hypoglycemia (53 +/- 2 mg/dl) or euglycemia (93 +/- 3 mg/dl) was obtained during morning and afternoon. The next morning subjects underwent a 2-h hyperinsulinemic (1.5 mU/kg per min) hypoglycemic (53 +/- 2 mg/dl) clamp study. In the other group (n = 8), day 1 consisted of morning and afternoon 2-h clamped hyperinsulinemic euglycemia with cortisol infused to stimulate levels of plasma cortisol occurring during clamped hypoglycemia (53 mg/dl). The next morning (day 2) subjects underwent a 2-h hyperinsulinemic hypoglycemic clamp identical to the first group. Despite equivalent day 2 plasma glucose and insulin levels, steady state epinephrine, norepinephrine, pancreatic polypeptide, glucagon, ACTH and muscle sympathetic nerve activity (MSNA) values were significantly (R < 0.01) blunted after day 1 cortisol infusion compared to antecedent euglycemia. Compared to day 1 cortisol, antecedent hypoglycemia produced similar blunted day 2 responses of epinephrine, norepinephrine, pancreatic polypeptide and MSNA compared to day 1 cortisol. Antecedent hypoglycemia, however, produced a more pronounced blunting of plasma glucagon, ACTH, and hepatic glucose production compared to day 1 cortisol. We conclude that in healthy overnight fasted men (a) antecedent physiologic increases of plasma cortisol can significantly blunt epinephrine, norepinephrine, glucagon, and MSNA responses to subsequent hypoglycemia and (b) these data suggest that increased plasma cortisol is the mechanism responsible for antecedent hypoglycemia causing hypoglycemia associated autonomic failure. PMID:8698859

A systematic review and meta-analysis of antecedents of blood donation behavior and intentions.

PubMed

Bednall, Timothy C; Bove, Liliana L; Cheetham, Ali; Murray, Andrea L

2013-11-01

This meta-analysis sought to identify the strongest antecedents of blood donation behavior and intentions. It synthesized the results of 24 predictive correlational studies of donation behavior and 37 studies of donation intentions. The antecedents were grouped into six research programs: (1) the Theory of Planned Behavior (TPB) and its extensions, (2) prosocial motivation, (3) affective expectations, (4) donor site experience, (5) past donation behavior, and (6) donor demographics. Antecedent categories were cross-validated by multiple coders, and combined effect sizes were analyzed using a random-effects model. For donation behavior, medium positive associations were found with five of the constructs from the extended TPB: intentions to donate, perceived behavioral control, attitude toward donation, self-efficacy and donor role identity. Other antecedents displaying a positive association with donation behavior included anticipated regret for not donating, number of past donations and donor age. Donor experiences at the collection site in the form of temporary deferral or adverse reactions had a medium negative association with behavior. For donation intentions, strong positive associations were observed for perceived behavioral control, attitude, self-efficacy, role identity and anticipated regret. Medium positive associations were observed for personal moral norm, subjective norm, satisfaction, and service quality. All other potential antecedents had weak or non-significant associations with behavior and intentions. Several of these associations were moderated by between-study differences, including donor experience, the period of data collection in which donation behavior was observed, and the use of a nominal (yes/no return) versus a ratio measure of donation behavior. Collectively, the results underscore the importance of enhancing donors' attitudes towards donation and building their perceived behavioral control and self-efficacy to donate. Further

Antecedents of Adolescent Parenthood and Consequences at Age 30.

ERIC Educational Resources Information Center

Russ-Eft, Darlene; And Others

1979-01-01

Antecedents and consequences of adolescent parenting were examined using a representative national sample of 1,000 30-year-olds. It was found that 10 percent of men and 31 percent of women had had a child during adolescence. Higher incidences of adolescent parenting occurred among Blacks and low socio-economic status and low ability groups.…

A relational framework for understanding bullying: Developmental antecedents and outcomes.

PubMed

Rodkin, Philip C; Espelage, Dorothy L; Hanish, Laura D

2015-01-01

This article reviews current research on the relational processes involved in peer bullying, considering developmental antecedents and long-term consequences. The following themes are highlighted: (a) aggression can be both adaptive and maladaptive, and this distinction has implications for bullies' functioning within peer social ecologies; (b) developmental antecedents and long-term consequences of bullying have not been well-distinguished from the extant research on aggressive behavior; (c) bullying is aggression that operates within relationships of power and abuse. Power asymmetry and repetition elements of traditional bullying definitions have been hard to operationalize, but without these specifications and more dyadic measurement approaches there may be little rationale for a distinct literature on bullying--separate from aggression. Applications of a relational approach to bullying are provided using gender as an example. Implications for future research are drawn from the study of relationships and interpersonal theories of developmental psychopathology. (c) 2015 APA, all rights reserved).

VP2 (PTA motif) encoding DNA vaccine confers protection against lethal challenge with infectious pancreatic necrosis virus (IPNV) in trout.

PubMed

Ahmadivand, Sohrab; Soltani, Mehdi; Behdani, Mahdi; Evensen, Øystein; Alirahimi, Ehsan; Soltani, Elahe; Hassanzadeh, Reza; Ashrafi-Helan, Javad

2018-02-01

IPNV in Atlantic salmon is represented by various strains with different virulence and immunogenicity linked to various motifs of the VP2 capsid. IPNV variant with P 217 , T 221 , A 247 (PTA) motif is found to be avirulent in Atlantic salmon, but virulent in rainbow trout, and other salmonid species. This study describes a DNA vaccine delivered intramuscularly encoding the VP2 protein of infectious pancreatic necrosis virus (IPNV) with PTA motif that confers high protection in rainbow trout (Oncorhynchus mykiss). Intramuscular injection of 2, 5 and 10 μg of DNA (pcDNA3.1-VP2) in rainbow trout fry (4-5 g), confers relative protection of 75-83% in the different vaccine groups at 30 days post vaccination (450° days). The VP2 gene is expressed in spleen, kidney, muscle and liver at day 30 post-vaccination (RT-PCR), and IFN-1 and Mx-1 mRNA are upregulated at early time post vaccination, and so also for IgM, IgT, CD4 and CD8 in the head kidney of vaccinated fish compared to controls, 15 and 30 days post vaccination. Significant increase of serum anti-IPNV antibodies was found 30-90 days post-vaccination that was correlated with protection levels. Mortality corresponded with viral VP4 gene expression were significantly decreased in vaccinated and challenged fish. This shows for the first time that a VP2-encoding DNA vaccine delivered intramuscularly elicits a high level of protection alongside with high levels of circulating antibodies in rainbow trout and a lowered viral replication. Copyright © 2017 Elsevier Ltd. All rights reserved.

Antecedents and consequences of intra-group conflict among nurses.

PubMed

Almost, Joan; Doran, Diane M; McGillis Hall, Linda; Spence Laschinger, Heather K

2010-11-01

To test a theoretical model linking selected antecedent variables to intra-group conflict among nurses, and subsequently conflict management style, job stress and job satisfaction. A contributing factor to the nursing shortage is job dissatisfaction as a result of conflict among nurses. To develop strategies to reduce conflict, research is needed to understand the causes and outcomes of conflict in nursing work environments. A predictive, non-experimental design was used in a random sample of 277 acute care nurses. Structural equation modelling was used to analyse the hypothesised model. Nurses' core self-evaluations, complexity of care and relationships with managers and nursing colleagues influenced their perceived level of conflict. Conflict management style partially mediated the relationship between conflict and job satisfaction. Job stress had a direct effect on job satisfaction and core self-evaluation had a direct effect on job stress. Conflict and its associated outcomes is a complex process, affected by dispositional, contextual and interpersonal factors. How nurses manage conflict may not prevent the negative effects of conflict, however, learning to manage conflict using collaboration and accommodation may help nurses experience greater job satisfaction. Strategies to manage and reduce conflict include building interactional justice practices and positive interpersonal relationships. © 2010 The Authors. Journal compilation © 2010 Blackwell Publishing Ltd.

Young Children's Social Information Processing: Family Antecedents and Behavioral Correlates

ERIC Educational Resources Information Center

Runions, Kevin C.; Keating, Daniel P.

2007-01-01

Little research has examined whether social information processing (SIP) measures from early childhood predict externalizing problems beyond the shared association with familial risk markers. In the present study, family antecedents and first-grade externalizing behaviors were studied in relation to preschool and 1st-grade SIP using data from…

Characteristics, perceptions, and other factors influencing physical therapist assistant program directors in 2001.

PubMed

Page, Catherine G

2003-01-01

Little is known about program directors in physical therapist assistant (PTA) programs. This study describes the characteristics of program directors in PTA programs, such as time spent on responsibilities, influences on decision making, perceptions of current working relationships, and satisfaction with decision making. Program directors of 153 (57.5%) accredited PTA programs responded to the survey. The self-reported data were generated by a mail survey developed by the investigator that included 32 demographic items and 58 Likert-scale items to meet the purpose of the study. The data suggest that PTA program directors have average to extremely good levels of satisfaction with their positions and spend more time on student-related and accreditation/long range planning activities than they do on other activities. Information on years of experience and types of degrees suggest that respondents have a great deal of physical therapy experience but much less experience in teaching and administration within community colleges. This information may be valuable for people who seek, or who are recruited for, PTA program director positions. It provides a foundational database for periodic studies of PTA program directors. As enrollments and new programs stabilize and as new program directors are appointed, their impact on physical therapy education and the profession must be reevaluated.

Relevance of antecedent venography in percutaneous vertebroplasty for the treatment of osteoporotic compression fractures.

PubMed

Gaughen, John R; Jensen, Mary E; Schweickert, Patricia A; Kaufmann, Timothy J; Marx, William F; Kallmes, David F

2002-04-01

Controversy exists regarding the utility of antecedent venography in percutaneous vertebroplasty. Our purpose was to determine whether antecedent venography improves clinical outcomes and/or decreases extravertebral cement extravasation in these procedures. We retrospective reviewed outcomes of consecutive percutaneous vertebroplasty procedures performed at our institution to define two populations, each consisting of 24 patients treated at 42 vertebral levels. Group 1 included patients who underwent antecedent venography, and group 2 included patients treated without venography. Clinical outcomes were assessed with quantitative measurements of pain and mobility. Venograms and postprocedural radiographs were interpreted to evaluate the number of vertebrae with extravertebral cement extravasation, degree of extravasation at each level, and correlation between venography and vertebroplasty. Pain improved in 19 of 20 group 1 patients, compared with 21 of 22 group 2 patients; mean postoperative pain levels were 1.3 and 1.8, respectively (P =.50), on a scale of 0 (no pain) to 10 (worst pain). All 11 group 1 patients with impaired preoperative mobility reported postoperative improvement, as did all 12 group 2 patients; mean levels of postoperative impaired mobility for groups 1 and 2 were 0.35 and 0.27, respectively (P =.43). Twenty-two of 42 vertebrae treated in group 1 demonstrated extravasation, compared with 28 of 42 in group 2 (P =.266); amounts of extravasation did not differ. Among 22 levels of extravasation in group 1, venograms in 14 showed correlative extravasation. Antecedent venography does not significantly improve the effectiveness or safety of percutaneous vertebroplasty performed by qualified, experienced operators.

When the customer shouldn't be king: antecedents and consequences of sexual harassment by clients and customers.

PubMed

Gettman, Hilary J; Gelfand, Michele J

2007-05-01

Much of the work in today's service industries requires women to deal with people outside of their organizations, namely, customers and clients, yet research on sexual harassment has focused almost exclusively on sexual harassment within organizations. Because the threat of harassment also operates at the boundaries of organizations, our existing models based solely on harassment inside organizations may be too restricted to adequately explain the harassment experiences of women in today's economy. To address this, the authors introduce a theoretical model of the antecedents and consequences of sexual harassment by clients and customers (CSH) and describe 2 field studies conducted to test components of the model. In Study 1, they developed a model of antecedents and consequences of CSH and illustrated that certain contextual factors (client power and gender composition of the client base) affect levels of CSH and that CSH is related to a number of job and psychological outcomes among professional women. Study 2 revealed that CSH is related to lower job satisfaction among nonprofessional women, above and beyond that which is accounted for by internal sexual harassment. Theoretical and practical implications are discussed. 2007 APA, all rights reserved

An examination of antecedents to coal miners' hearing protection behaviors: A test of the theory of planned behavior

DOE Office of Scientific and Technical Information (OSTI.GOV)

Quick, B.L.; Stephenson, M.T.; Witte, K.

The National Institute for Occupational Safety and Health's (NIOSH) National Occupational Research Agenda (DHHS Publication No. 96-115) reports that approximately 50% of miners will experience hearing loss by age 50, compared to only 9% of the general population. The present investigation examines three antecedents believed to be associated with miner's use of hearing protection. A posttest-delayed-posttest-control group field research design was employed to assess antecedents toward wearing hearing protection. Following the initial posttest, miners' attitudes and subjective norms were antecedents to intentions to wear hearing protection devices. Also, intentions toward wearing hearing protection predicted hearing protection behaviors. Approximately six weeksmore » later, miners' attitudes and perceived behavioral control were each significant predictors of intentions to wear hearing protection and again, intentions were positively associated with hearing protection behaviors. Our results indicate that appeals to normative influences may be the most effective antecedent to employ when persuading coal miners to wear hearing protection. However, messages designed to impact attitudes and perceived behavioral control were also effective.« less

An examination of antecedents to coal miners' hearing protection behaviors: a test of the theory of planned behavior.

PubMed

Quick, Brian L; Stephenson, Michael T; Witte, Kim; Vaught, Charles; Booth-Butterfield, Steve; Patel, Dhaval

2008-01-01

The National Institute for Occupational Safety and Health's [NIOSH] National Occupational Research Agenda (DHHS Publication No. 96-115) reports that approximately 50% of miners will experience hearing loss by age 50, compared to only 9% of the general population. The present investigation examines three antecedents believed to be associated with miner's use of hearing protection. A posttest-delayed-posttest-control group field research design was employed to assess antecedents toward wearing hearing protection. Following the initial posttest, miners' attitudes and subjective norms were antecedents to intentions to wear hearing protection devices. Also, intentions toward wearing hearing protection predicted hearing protection behaviors. Approximately six weeks later, miners' attitudes and perceived behavioral control were each significant predictors of intentions to wear hearing protection and again, intentions were positively associated with hearing protection behaviors. Our results indicate that appeals to normative influences may be the most effective antecedent to employ when persuading coal miners to wear hearing protection. However, messages designed to impact attitudes and perceived behavioral control were also effective.

Antecedents and Consequences of Supplier Performance Evaluation Efficacy

DTIC Science & Technology

2016-04-30

Bowling Green , KY. He researches and teaches in the realm of supply chain management, government contracting, and strategic sourcing. He has 20...Berrios, 2006). In other words, we do not know the extent to which SPEs validly build the buyer’s confidence in its assessment of the risk of doing...consequences to SPE efficacy, and uses two separate approaches to do so. To explore the antecedents, this research builds off of prior research (Hawkins, 2013

Trajectories of Physical Discipline: Early Childhood Antecedents and Developmental Outcomes

ERIC Educational Resources Information Center

Lansford, Jennifer E.; Criss, Michael M.; Dodge, Kenneth A.; Shaw, Daniel S.; Pettit, Gregory S.; Bates, John E.

2009-01-01

This study examined childhood antecedents and developmental outcomes associated with trajectories of mild and harsh parental physical discipline. Interview, questionnaire, and observational data were available from 499 children followed from ages 5 to 16 and from 258 children in an independent sample followed from ages 5 to 15. Analyses indicated…

The effects of preterm birth and its antecedents on the cardiovascular system.

PubMed

Bensley, Jonathan G; De Matteo, Robert; Harding, Richard; Black, Mary J

2016-06-01

Preterm birth occurs in approximately 10% of all births worldwide. It prematurely exposes the developing cardiovascular system to the hemodynamic transition that occurs at birth and to the subsequent functional demands of life ex utero. This review describes the current knowledge of the effects of preterm birth, and some of its common antecedents (chorioamnionitis, intra-uterine growth restriction, and maternal antenatal corticosteroid administration), on the structure of the myocardium. A thorough literature search was conducted for articles relating to how preterm birth, and its antecedents, affect development of the heart. Given that sheep are an excellent model for the studies of cardiac development, this review has focused on experimental studies in sheep as well as clinical findings. Our review of the literature demonstrates that individuals born preterm are at an increased risk of cardiovascular disease later in life, including increased mean arterial pressure, abnormally shaped and sub-optimally performing hearts and changes in the vasculature. The review highlights how antenatal corticosteroids, intra-uterine growth restriction, and exposure to chorioamnionitis also have the potential to impact cardiac growth in the preterm newborn. Preterm birth and its common antecedents (antenatal corticosteroids, intra-uterine growth restriction, and chorioamnionitis) have the potential to adversely impact cardiac structure immediately following birth and in later life. © 2016 Nordic Federation of Societies of Obstetrics and Gynecology.

Antecedent flow conditions and nitrate concentrations in the Mississippi River basin

USGS Publications Warehouse

Murphy, Jennifer C.; Hirsch, Robert M.; Sprague, Lori A.

2014-01-01

The relationship between antecedent flow conditions and nitrate concentrations was explored at eight sites in the 2.9 million square kilometers (km2) Mississippi River basin, USA. Antecedent flow conditions were quantified as the ratio between the mean daily flow of the previous year and the mean daily flow from the period of record (Qratio), and the Qratio was statistically related to nitrate anomalies (the unexplained variability in nitrate concentration after filtering out season, long-term trend, and contemporaneous flow effects) at each site. Nitrate anomaly and Qratio were negatively related at three of the four major tributary sites and upstream in the Mississippi River, indicating that when mean daily streamflow during the previous year was lower than average, nitrate concentrations were higher than expected. The strength of these relationships increased when data were subdivided by contemporaneous flow conditions. Five of the eight sites had significant negative relationships (p ≤ 0.05) at high or moderately high contemporaneous flows, suggesting nitrate that accumulates in these basins during a drought is flushed during subsequent high flows. At half of the sites, when mean daily flow during the previous year was 50 percent lower than average, nitrate concentration can be from 9 to 27 percent higher than nitrate concentrations that follow a year with average mean daily flow. Conversely, nitrate concentration can be from 8 to 21 percent lower than expected when flow during the previous year was 50 percent higher than average. Previously documented for small, relatively homogenous basins, our results suggest that relationships between antecedent flows and nitrate concentrations are also observable at a regional scale. Relationships were not observed (using all contemporaneous flow data together) for basins larger than 1 million km2, suggesting that above this limit the overall size and diversity within these basins may necessitate the use of more

Antecedents of Suicide among Youth Aged 11–15: A Multistate Mixed Methods Analysis

PubMed Central

Vivolo-Kantor, Alana M.; Logan, Joseph E.; Leemis, Ruth W.

2018-01-01

Suicide is the second leading cause of death for youth aged 11 to 15, taking over 5,500 lives from 2003 to 2014. Suicide among this age group is linked to risk factors such as mental health problems, family history of suicidal behavior, biological factors, family problems, and peer victimization and bullying. However, few studies have examined the frequency with which such problems occur among youth suicide decedents or the context in which decedents experience these risk factors and the complex interplay of risk that results in a decedent’s decision to take his/her own life. Data from a random sample of 482 youth (ages 11–15) suicide cases captured in the National Violent Death Reporting System from 2003 to 2014 were analyzed. The sample had fewer girls than boys (31 vs. 69 %) and comprised primarily White youth (79 %), but also African Americans (13 %), Asians (4 %), and youth of other races (4 %). Narrative data from coroner/medical examiner and law enforcement investigative reports were coded and analyzed to identify common behavioral patterns that preceded suicide. Emergent themes were quantified and examined using content and constant comparative analysis. Themes regarding antecedents across multiple levels of the social ecology emerged. Relationship problems, particularly with parents, were the most common suicide antecedent. Also, a pattern demonstrating a consistent progression toward suicidal behavior emerged from the data. Narratives indicated that youth were commonly exposed to one or more problems, often resulting in feelings of loneliness and burdensomeness, which progressed toward thoughts and sometimes plans for or attempts at suicide. Continued exposure to negative experiences and thoughts/plans about suicide, and/or self-injurious acts resulted in an acquired capacity to self-harm, eventually leading to suicide. These findings provide support for theories of suicidal behavior and highlight the importance of multi-level, comprehensive

The Motivating Effect of Antecedent Stimuli on the Web Shop: A Conjoint Analysis of the Impact of Antecedent Stimuli at the Point of Online Purchase

ERIC Educational Resources Information Center

Fagerstrom, Asle

2010-01-01

This article introduces the concept of motivating operation (MO) to the field of online consumer research. A conjoint analysis was conducted to assess the motivating impact of antecedent stimuli on online purchasing. Stimuli tested were in-stock status, price, other customers' reviews, order confirmation procedures, and donation to charity. The…

Antecedents of Helping: Assessing the Role of Empathy and Values.

ERIC Educational Resources Information Center

Earle, Walter B.; And Others

Empathy and prosocial moral values are often identified as antecedents of helping behavior, but interest in their relationship and joint operation has only recently emerged. To investigate the relative contribution of empathy and values to helping responses, 87 college students were confronted with a request for help delivered either in person or…

Antecedents for Interrole Conflict in the High School Teacher/Coach

ERIC Educational Resources Information Center

Ryan, Timothy D.

2008-01-01

Antecedents for interrole conflict between the teaching role and coaching role for the high school teacher coach (TC) were examined. It was expected that younger TCs, those in smaller schools, TCs with more coaching jobs, or TCs with an unbalanced role preference will experience more conflict between the teaching and coaching role. Using…

Childhood Antecedents to Adult Coronary Artery Diseases. Special Reference Briefs.

ERIC Educational Resources Information Center

Winick, Myron

This reference brief deals with the childhood antecedents to atherosclerosis and hypertension. While diet is related to the development of coronary artery diseases, there is some disagreement about what dietary changes are necessary or desirable in children to prevent their development, and at what age such changes should be made. Fifty-five…

Use of an Antecedent Intervention to Decrease Vocal Stereotypy of a Student with Autism in the General Education Classroom

ERIC Educational Resources Information Center

Haley, Janet L.; Heick, Patrick F.; Luiselli, James K.

2010-01-01

This study examined the use of an antecedent-based intervention to reduce the vocal stereotypy of a student diagnosed with Autism within the general education classroom. The student displayed frequent nonfunctional speech and disruptive vocal sounds. An antecedent-based intervention, involving the use of qualitatively different cards--to cue the…

The Antecedents of Organizational Commitment: The Case of Australian Casual Academics

ERIC Educational Resources Information Center

Joiner, Therese A.; Bakalis, Steve

2006-01-01

Purpose: Despite the increasing attention of organizational commitment in the management literature, most studies predominantly focus on full-time workers in traditional work settings. This paper examined the antecedents of organizational commitment among casual academics working in the tertiary education sector in Australia.…

Responsive and Proactive Stakeholder Orientation in Public Universities: Antecedents and Consequences

ERIC Educational Resources Information Center

Alarcón-del-Amo, María-del-Carmen; Casablancas-Segura, Carme; Llonch, Joan

2016-01-01

This study, based on institutional theory, dynamic capabilities, and stakeholder theory, investigates the relationships between the antecedents of responsive and proactive stakeholder orientation and their consequences in the public university context. The results obtained mainly stress that the mimetic effect of copying successful university…

A novel fast mass transfer anaerobic inner loop fluidized bed biofilm reactor for PTA wastewater treatment.

PubMed

Chen, Yingwen; Zhao, Jinlong; Li, Kai; Xie, Shitao

In this paper, a fast mass transfer anaerobic inner loop fluidized bed biofilm reactor (ILFBBR) was developed to improve purified terephthalic acid (PTA) wastewater treatment. The emphasis of this study was on the start-up mode of the anaerobic ILFBBR, the hydraulic loadings and the operation stability. The biological morphology of the anaerobic biofilm in the reactors was also analyzed. The anaerobic column could operate successfully for 46 days due to the pre-aerating process. The anaerobic column had the capacity to resist shock loadings and maintained a high stable chemical oxygen demand (COD) and terephthalic acid removal rates at a hydraulic retention time of 5-10 h, even under conditions of organic volumetric loadings as high as 28.8 kg COD·m(-3).d(-1). The scanning electron microscope analysis of the anaerobic carrier demonstrated that clusters of prokaryotes grew inside of pores and that the filaments generated by pre-aeration contributed to the anaerobic biofilm formation and stability.

Motivational Antecedents of Preventive Proactivity in Late Life: Linking Future Orientation and Exercise1

PubMed Central

Kahana, Eva; Kahana, Boaz; Zhang, Jianping

2007-01-01

Future orientation is considered as a motivational antecedent of late-life proactivity. In a panel study of 453 old-old adults, we linked future orientation to exercise, a key component of late-life proactivity. Findings based on hierarchical linear modeling reveal that future orientation at baseline predicts changes in exercise during the subsequent four years. Whereas exercise behavior generally declined over time, future orientation and female gender were associated with smaller decline. These results suggest that future-oriented thinking has a lasting impact on health promotion behavior. Future orientation thus represents a dispositional antecedent of preventive proactivity as proposed in our successful aging model. PMID:18080009

Follower Jealousy at Work: A Test of Vecchio's Model of Antecedents and Consequences of Jealousy.

PubMed

Thompson, Geir; Buch, Robert; Glasø, Lars

2018-01-02

The present study tests the validity of Robert P. Vecchio's seminal work on antecedents and consequences of jealousy. Specifically, we examine whether antecedents such as in-group status, supervisory considerateness, and supervisory differentiation of subordinates are associated with jealousy. In addition, we examine whether jealousy is associated with the outcome variable of social loafing. Leaders (n = 73) and their followers (n = 303) working in business organizations in Norway contributed data. Multilevel analyses showed that a high-quality working relationship with one's supervisor was inversely related to reports of jealousy. In addition, supervisors who displayed high levels of considerateness, for example, by providing followers with positive emotional support, were better able to reduce subordinate jealousy. This is a novel observation since previous research failed to demonstrate such a relationship. Finally, jealousy was positively associated with social loafing, suggesting that jealous followers engaged in an active counterproductive resistance response. The present study contributes to the extant literature by identifying unexamined antecedents of jealousy and a dysfunctional behavioral response to jealousy in the form of social loafing in the workplace.

Gifted and Talented Young Women: Antecedents and Correlates of Life Satisfaction.

ERIC Educational Resources Information Center

Hollinger, Constance L.; Fleming, Elyse S.

1988-01-01

The study examined the antecedents and correlates of general life satisfaction as reported by 108 gifted and talented young women. Results of the six-year longitudinal analyses supported the predicted centrality of instrumental self perception to social self esteem, occupational confidence, and general life satisfaction. (Author/DB)

Antecedents and Correlates of the Popular-Aggressive Phenomenon in Elementary School

ERIC Educational Resources Information Center

Rodkin, Philip C.; Roisman, Glenn I.

2010-01-01

This study identified correlates and developmental antecedents that distinguish popular-aggressive elementary school children from other youth. Drawing on the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development (N = 1022), popular-aggressive children were identified through teacher ratings over…

Daily antecedents and consequences of nightly sleep.

PubMed

Lee, Soomi; Crain, Tori L; McHale, Susan M; Almeida, David M; Buxton, Orfeu M

2017-08-01

Sleep can serve as both cause and consequence of individuals' everyday experiences. We built upon prior studies of the correlates of sleep, which have relied primarily on cross-sectional data, to examine the antecedents and consequences of sleep using a daily diary design. Specifically, we assessed the temporal sequence between nightly sleep and daily psychosocial stressors. Parents employed in a US information technology company (n = 102) completed eight consecutive daily diaries at both baseline and 1 year later. In telephone interviews each evening, participants reported on the previous night's sleep hours, sleep quality and sleep latency. They also reported daily work-to-family conflict and time inadequacy (i.e. perceptions of not having enough time) for their child and for themselves to engage in exercise. Multi-level models testing lagged and non-lagged effects simultaneously revealed that sleep hours and sleep quality were associated with next-day consequences of work-to-family conflict and time inadequacy, whereas psychosocial stressors as antecedents did not predict sleep hours or quality that night. For sleep latency, the opposite temporal order emerged: on days with more work-to-family conflict or time inadequacy for child and self than usual, participants reported longer sleep latencies than usual. An exception to this otherwise consistent pattern was that time inadequacy for child also preceded shorter sleep hours and poorer sleep quality that night. The results highlight the utility of a daily diary design for capturing the temporal sequences linking sleep and psychosocial stressors. © 2016 European Sleep Research Society.

Job Level, Demands, and Resources as Antecedents of Work-Family Conflict

ERIC Educational Resources Information Center

DiRenzo, Marco S.; Greenhaus, Jeffrey H.; Weer, Chisty H.

2011-01-01

Although substantial research has examined the conflict that employees experience between their work and family roles, the literature has not investigated the prevalence and antecedents of work-family conflict for individuals who work at different levels of an organization. This study examines differences in work-family conflict (work interference…

Effects of Fishing Education Programs on Antecedents of Responsible Environmental Behavior.

ERIC Educational Resources Information Center

Siemer, William F.; Knuth, Barbara A.

2001-01-01

Investigates fishing and aquatic stewardship outcomes associated with different levels of program exposure among n=619 participants in a national fishing education program (Hooked on Fishing-Not on Drugs) designed for youth in Grades 6-8. Supports the assumption that such programs are more likely to influence antecedents to environmentally…

Identifying antecedent conditions responsible for the high rate of mining injuries in Zambia.

PubMed

Miller, Hugh B; Sinkala, Thomson; Renger, Ralph F; Peacock, Erin M; Tabor, Joseph A; Burgess, Jefferey L

2006-01-01

The incident rates of mining-related accidents and injuries in developing countries exceed those of developed nations. Interventions by international organizations routinely fail to produce appreciable long-term improvement. One major reason is the inability to identify and analyze the underlying factors responsible for creating unsafe working conditions. Understanding these antecedent conditions is necessary to formulate effective intervention strategies and prioritize the use of limited resources. This study utilized a logic model approach to determine the root causes and broad categories of potential interventions for mining accidents and injuries in Zambia. Results showed that policy interventions have the greatest potential for substantive change. A process of educating officials from government and mining companies about the economic and social merits of health and safety programs and extensive changes in regulatory structure and enforcement are needed.

Antecedents of and Reactions to Emotions in the United States and Japan.

ERIC Educational Resources Information Center

Matsumoto, David; And Others

1988-01-01

Examines the degree of cultural similarity and specificity in the emotional experiences of subjects from the United States and Japan. Found a high degree of cultural agreement in the antecedent/evaluation process, but some differences in relative/expressive aspects of emotion. (Author/BJV)

Prevalence of and antecedents to dementia-related missing incidents in the community.

PubMed

Bowen, Mary Elizabeth; McKenzie, Barbara; Steis, Melinda; Rowe, Meredeth

2011-01-01

The primary aim of this study is to examine the prevalence of and antecedents to missing incidents among community-dwelling persons with dementia. This prospective study used mailed surveys and telephone interviews. The prevalence of having any incident was 0.46/year; the overall prevalence for missing incidents in this study was 0.65/year. Missing incidents had few antecedents and occurred largely when persons with dementia were performing everyday activities that they normally completed without incident. Given that a missing incident is relatively common among persons with dementia, health care professionals should assist caregivers with a missing incident plan early in the disease process. Also, as missing persons are found by persons other than the caregiver and caregivers underutilize identification devices, health care professionals may recommend the use of identification devices to facilitate a safe return. Copyright © 2011 S. Karger AG, Basel.

The antecedents of identification: a rhetorical analysis of British Muslim activists' constructions of community and identity.

PubMed

Hopkins, Nick; Kahani-Hopkins, Vered

2004-03-01

This paper takes as its focus the perception of community. This is analysed through reference to the literature concerning the adoption of more inclusive, superordinate social categories. Whilst most research tends to focus on the consequences of these social categories for self and other perception, we focus on their antecedents. These are typically hypothesized to include such issues as the perception of the subordinate groups' common fate and factors affecting their perceptual differentiation (e.g. their similarity and entitativity). However, rather than conceiving of such issues as pre-given antecedent variables, we explore how these issues (and others) are actively constructed in and through discourse. More specifically, we explore how such issues are sites of contestation as activists with different political projects seek to construct quite different versions of the relevant superordinate community identity. Our data are qualitative and are drawn from contemporary debates amongst British Muslims concerning their relations with non-Muslim Britons and non-British Muslims across the globe. A key issue in these deliberations concerns the nature of British Muslims' identity and the superordinate identifications that best facilitate its expression and realization. We suggest that constructions of common fate, similarity, entitativity etc., far from being 'givens', are the means through which different definitions of Muslim identity are constructed and different forms of collective action mobilized.

Ecological momentary assessment of antecedents and consequences of smoking in adults with attention-deficit/hyperactivity disorder.

PubMed

Mitchell, John T; Dennis, Michelle F; English, Joseph S; Dennis, Paul A; Brightwood, Amy; Beckham, Jean C; Kollins, Scott H

2014-09-01

The current study assessed antecedents and consequences of ad lib cigarette smoking in smokers diagnosed with attention-deficit/hyperactivity disorder (ADHD) using ecological momentary assessment (EMA). Adult smokers with ADHD (n = 17) completed 870 smoking and 622 nonsmoking electronic diary entries over a 7-day observation period of their naturalistic smoking behavior. Data collection occurred from 2011 to 2012. Generalized estimating equations indicated that ADHD smokers were more likely to smoke when urge to smoke, negative affect, boredom, stress, worry, and restlessness were elevated. In addition, participants were more likely to smoke in situations that elicited higher levels of nervousness and frustration. ADHD symptoms, in general, did not differ between smoking and nonsmoking contexts, though hyperactive-impulsive ADHD symptoms were elevated prior to smoking in frustrating situations. Additional situational antecedent variables were associated with smoking, including being in the presence of others smoking, being in a bar or restaurant, while outside, and while consuming caffeinated or alcoholic beverages. Participants also reported a significant improvement in urge to smoke, negative affect, stress, hunger, and ADHD symptoms after smoking a cigarette. Findings suggest certain contextual factors that may maintain ad lib cigarette smoking in smokers with ADHD and identify potential treatment targets in smoking cessation interventions for this at-risk group. Clinical implications and future research directions are discussed. Funding for this study was provided by the National Institute on Drug Abuse.

Proform-Antecedent Linking in Listeners with Language Impairments and Unimpaired Listeners

ERIC Educational Resources Information Center

Engel, Samantha Michelle

2016-01-01

This dissertation explores how listeners extract meaning from personal and reflexive pronouns in spoken language. To be understood, words like her and herself must be linked to a prior element in the speech stream (or antecedent). This process draws on syntactic knowledge and verbal working memory processes. I present two original research studies…

Specific Cognitive Antecedents of Structures and Functions Involved in Language Acquisition

ERIC Educational Resources Information Center

Moerk, Ernst L.

1973-01-01

The antecedents of verbal behavior, together with the teaching skills of the adult linguistic community, probably constitute all the necessary bases for language acquisition. As they seemed to be sufficient for the explanation of all the known phenomena, an assumption of an innate linguistic language acquisition device was rejected as superfluous.…

Socialization and Individual Antecedents of Adolescents' and Young Adults' Moral Motivation

ERIC Educational Resources Information Center

Malti, Tina; Buchmann, Marlis

2010-01-01

Socialization and individual differences were examined as antecedents of moral motivation in representative samples of 15-year-old adolescents (N = 1,258; 54% female) and 21-year-old young adults (N = 584; 53% female). The adolescents' primary caregivers (N = 1,056) also participated. The strength of moral motivation was rated by participants'…

Anaphoric Reference to Quantified Antecedents: An Event-Related Brain Potential Study

ERIC Educational Resources Information Center

Filik, Ruth; Leuthold, Hartmut; Moxey, Linda M.; Sanford, Anthony J.

2011-01-01

We report an event-related brain potential (ERP) study examining how readers process sentences containing anaphoric reference to quantified antecedents. Previous studies indicate that positive (e.g. "many") and negative (e.g. "not many") quantifiers cause readers to focus on different sets of entities. For example in "Many of the fans attended the…

Transformational leadership and group interaction as climate antecedents: a social network analysis.

PubMed

Zohar, Dov; Tenne-Gazit, Orly

2008-07-01

In order to test the social mechanisms through which organizational climate emerges, this article introduces a model that combines transformational leadership and social interaction as antecedents of climate strength (i.e., the degree of within-unit agreement about climate perceptions). Despite their longstanding status as primary variables, both antecedents have received limited empirical research. The sample consisted of 45 platoons of infantry soldiers from 5 different brigades, using safety climate as the exemplar. Results indicate a partially mediated model between transformational leadership and climate strength, with density of group communication network as the mediating variable. In addition, the results showed independent effects for group centralization of the communication and friendship networks, which exerted incremental effects on climate strength over transformational leadership. Whereas centralization of the communication network was found to be negatively related to climate strength, centralization of the friendship network was positively related to it. Theoretical and practical implications are discussed.

Antecedents and precipitants of patient-related violence in the emergency department: Results from the Australian VENT Study (Violence in Emergency Nursing and Triage).

PubMed

Pich, Jacqueline V; Kable, Ashley; Hazelton, Mike

2017-08-01

Workplace violence is one of the most significant and hazardous issues faced by nurses globally. It is a potentially life-threatening and life-affecting workplace hazard often downplayed as just "part of the job" for nurses. A cross-sectional design was used and data were collected using a purpose developed survey tool. Surveys were distributed to all members of the College of Emergency Nurses' Australasia (CENA) in 2010 and 537 eligible responses were received (RR=51%). Patient-related violence was reported by 87% of nurses in the last six months. Precipitants and antecedents for episodes of violence were reported in three categories: nurse-related; patient-related and emergency-department specific factors. Triaging was identified as the highest risk nursing activity, and the triage area identified as the highest risk location in the department. Patients who presented with alcohol intoxication, substance misuse or mental health issues were identified as the groups at greatest risk for potential violence. Patient-related violence was reported by the majority of emergency nurses surveyed. A number of precipitants and antecedents perceived to be risk factors by participants were found to be significant and are unavoidable in the working lives of emergency department nurses. Copyright © 2017 College of Emergency Nursing Australasia. Published by Elsevier Ltd. All rights reserved.

Antecedents and Concomitants of Parenting Stress in Adolescent Mothers in Foster Care

ERIC Educational Resources Information Center

Budd, Karen S.; Holdsworth, Michelle J. A.; HoganBruen, Kathy D.

2006-01-01

Objective: This study's aim was to examine variables associated with different short-term trajectories in multiply disadvantaged adolescent mothers by investigating antecedents and concomitants of parenting stress. Method: We followed 49 adolescent mothers (ages 14-18 at study outset) who were wards in Illinois foster care using a longitudinal…

Teachers' Everyday Professional Development: Mapping Informal Learning Activities, Antecedents, and Learning Outcomes

ERIC Educational Resources Information Center

Kyndt, Eva; Gijbels, David; Grosemans, Ilke; Donche, Vincent

2016-01-01

Although a lot is known about teacher development by means of formal learning activities, research on teachers' everyday learning is limited. In the current systematic review, we analyzed 74 studies focusing on teachers' informal learning to identify teachers' learning activities, antecedents for informal learning, and learning outcomes. In…

A Longitudinal Panel Study on Antecedents and Outcomes of Work-Home Interference

ERIC Educational Resources Information Center

Steinmetz, Holger; Frese, Michael; Schmidt, Peter

2008-01-01

Theoretical models of the antecedents and outcomes of work-home interference (WHI) suggest that work characteristics (e.g., job stressors, working hours) increase the probability that an individual experiences work-home interference. Since work-home interference is considered as a role stressor, these experiences should be detrimental for…

Risk Factors for Conduct Disorder and Oppositional/Defiant Disorder: Evidence from a New Zealand Birth Cohort

ERIC Educational Resources Information Center

Boden, Joseph M.; Fergusson, David M.; Horwood, L. John

2010-01-01

Objective: To examine the social, family background, and individual antecedents of conduct disorder (CD) and oppositional defiant disorder (ODD), the extent to which CD and ODD symptoms were predicted by common environmental risk factors, and the extent to which the antecedents of CD and ODD accounted for the comorbidity between the two disorders.…

Why continuous simulation? The role of antecedent moisture in design flood estimation

NASA Astrophysics Data System (ADS)

Pathiraja, S.; Westra, S.; Sharma, A.

2012-06-01

Continuous simulation for design flood estimation is increasingly becoming a viable alternative to traditional event-based methods. The advantage of continuous simulation approaches is that the catchment moisture state prior to the flood-producing rainfall event is implicitly incorporated within the modeling framework, provided the model has been calibrated and validated to produce reasonable simulations. This contrasts with event-based models in which both information about the expected sequence of rainfall and evaporation preceding the flood-producing rainfall event, as well as catchment storage and infiltration properties, are commonly pooled together into a single set of "loss" parameters which require adjustment through the process of calibration. To identify the importance of accounting for antecedent moisture in flood modeling, this paper uses a continuous rainfall-runoff model calibrated to 45 catchments in the Murray-Darling Basin in Australia. Flood peaks derived using the historical daily rainfall record are compared with those derived using resampled daily rainfall, for which the sequencing of wet and dry days preceding the heavy rainfall event is removed. The analysis shows that there is a consistent underestimation of the design flood events when antecedent moisture is not properly simulated, which can be as much as 30% when only 1 or 2 days of antecedent rainfall are considered, compared to 5% when this is extended to 60 days of prior rainfall. These results show that, in general, it is necessary to consider both short-term memory in rainfall associated with synoptic scale dependence, as well as longer-term memory at seasonal or longer time scale variability in order to obtain accurate design flood estimates.

A model of global citizenship: antecedents and outcomes.

PubMed

Reysen, Stephen; Katzarska-Miller, Iva

2013-01-01

As the world becomes increasingly interconnected, exposure to global cultures affords individuals opportunities to develop global identities. In two studies, we examine the antecedents and outcomes of identifying with a superordinate identity--global citizen. Global citizenship is defined as awareness, caring, and embracing cultural diversity while promoting social justice and sustainability, coupled with a sense of responsibility to act. Prior theory and research suggest that being aware of one's connection with others in the world (global awareness) and embedded in settings that value global citizenship (normative environment) lead to greater identification with global citizens. Furthermore, theory and research suggest that when global citizen identity is salient, greater identification is related to adherence to the group's content (i.e., prosocial values and behaviors). Results of the present set of studies showed that global awareness (knowledge and interconnectedness with others) and one's normative environment (friends and family support global citizenship) predicted identification with global citizens, and global citizenship predicted prosocial values of intergroup empathy, valuing diversity, social justice, environmental sustainability, intergroup helping, and a felt responsibility to act for the betterment of the world. The relationship between antecedents (normative environment and global awareness) and outcomes (prosocial values) was mediated by identification with global citizens. We discuss the relationship between the present results and other research findings in psychology, the implications of global citizenship for other academic domains, and future avenues of research. Global citizenship highlights the unique effect of taking a global perspective on a multitude of topics relevant to the psychology of everyday actions, environments, and identity.

Newcomer adjustment during organizational socialization: a meta-analytic review of antecedents, outcomes, and methods.

PubMed

Bauer, Talya N; Bodner, Todd; Erdogan, Berrin; Truxillo, Donald M; Tucker, Jennifer S

2007-05-01

The authors tested a model of antecedents and outcomes of newcomer adjustment using 70 unique samples of newcomers with meta-analytic and path modeling techniques. Specifically, they proposed and tested a model in which adjustment (role clarity, self-efficacy, and social acceptance) mediated the effects of organizational socialization tactics and information seeking on socialization outcomes (job satisfaction, organizational commitment, job performance, intentions to remain, and turnover). The results generally supported this model. In addition, the authors examined the moderating effects of methodology on these relationships by coding for 3 methodological issues: data collection type (longitudinal vs. cross-sectional), sample characteristics (school-to-work vs. work-to-work transitions), and measurement of the antecedents (facet vs. composite measurement). Discussion focuses on the implications of the findings and suggestions for future research. 2007 APA, all rights reserved

Antecedents and Consequences of Parental Rights Termination for Abused and Neglected Children.

ERIC Educational Resources Information Center

Borgman, Robert

1981-01-01

This study of 29 adopted children examines the consequences of parental rights termination (PRT) for neglected or abused children in relation to antecedent characteristics of children, parents, and circumstances in the foster care process. Suggests alternative plans for children whose PRT has not been followed by permanent adoptive placement.…

A relook at NEH-4 curve number data and antecedent moisture condition criteria

NASA Astrophysics Data System (ADS)

Mishra, Surendra Kumar; Singh, Vijay P.

2006-08-01

This paper investigates the variation of the popular curve number (CN) values given in the National Engineering Hand Book-Section 4 (NEH-4) of the Soil Conservation Service (SCS) with antecedent moisture condition (AMC) and soil type. Using the volumetric concept, involving soil, water, and air, a significant condensation of the NEH-4 tables is achieved. This leads to a procedure for determination of CN for gauged as well as ungauged watersheds. The rainfall-runoff events derived from daily data of four Indian watersheds exhibited a power relation between the potential maximum retention or CN and the 5-day antecedent rainfall amount. Including this power relation, the SCS-CN method was modified. This modification also eliminates the problem of sudden jumps from one AMC level to the other. The runoff values predicted using the modified method and the existing method utilizing the NEH-4 AMC criteria yielded similar results.

Ecological Momentary Assessment of Antecedents and Consequences of Smoking in Adults with Attention-Deficit/Hyperactivity Disorder

PubMed Central

Mitchell, John T.; Dennis, Michelle F.; English, Joseph S.; Dennis, Paul A.; Brightwood, Amy G.; Beckham, Jean C.; Kollins, Scott H.

2014-01-01

The current study assessed antecedents and consequences of ad lib cigarette smoking in smokers diagnosed with attention-deficit/hyperactivity disorder (ADHD) using ecological momentary assessment (EMA). Adult smokers with ADHD (n = 17) completed 870 smoking and 622 nonsmoking electronic diary entries over a seven-day observation period of their naturalistic smoking behavior. Data collection occurred from 2011 to 2012. Generalized estimating equations indicated that ADHD smokers were more likely to smoke when urge to smoke, negative affect, boredom, stress, worry, and restlessness were elevated. In addition, participants were more likely to smoke in situations that elicited higher levels of nervousness and frustration. ADHD symptoms, in general, did not differ between smoking and nonsmoking contexts, though hyperactive-impulsive ADHD symptoms were elevated prior to smoking in frustrating situations. Additional situational antecedent variables were associated with smoking, including being in the presence of others smoking, being in a bar or restaurant, while outside, and while consuming caffeinated or alcoholic beverages. Participants also reported a significant improvement in urge to smoke, negative affect, stress, hunger, and ADHD symptoms after smoking a cigarette. Findings suggest certain contextual factors that may maintain ad lib cigarette smoking in smokers with ADHD and identify potential treatment targets in smoking cessation interventions for this at-risk group. Clinical implications and future research directions are discussed. Funding for this study was provided by the National Institute on Drug Abuse. PMID:24827866

Job Demands and Resources as Antecedents of Work Engagement: A Longitudinal Study

ERIC Educational Resources Information Center

Mauno, Saija; Kinnunen, Ulla; Ruokolainen, Mervi

2007-01-01

By utilizing a 2-year longitudinal design, the present study investigated the experience of work engagement and its antecedents among Finnish health care personnel (n = 409). The data were collected by questionnaires in 2003 (Time 1) and in 2005 (Time 2). The study showed that work engagement--especially vigor and dedication--was relatively…

Investigating Antecedents of Task Commitment and Task Attraction in Service Learning Team Projects

ERIC Educational Resources Information Center

Schaffer, Bryan S.; Manegold, Jennifer G.

2018-01-01

The authors investigated the antecedents of team task cohesiveness in service learning classroom environments. Focusing on task commitment and task attraction as key dependent variables representing cohesiveness, and task interdependence as the primary independent variable, the authors position three important task action phase processes as…

Correlation between hypocenter depth, antecedent precipitation and earthquake-induced landslide spatial distribution

NASA Astrophysics Data System (ADS)

Fukuoka, Hiroshi; Watanabe, Eisuke

2017-04-01

Since Keefer published the paper on earthquake magnitude and affected area, maximum epicentral/fault distance of induced landslide distribution in 1984, showing the envelope of plots, a lot of studies on this topic have been conducted. It has been generally supposed that landslides have been triggered by shallow quakes and more landslides are likely to occur with heavy rainfalls immediately before the quake. In order to confirm this, we have collected 22 case records of earthquake-induced landslide distribution in Japan and examined the effect of hypocenter depth and antecedent precipitation. Earthquake magnitude by JMA (Japan Meteorological Agency) of the cases are from 4.5 to 9.0. Analysis on hycpocenter depth showed the deeper quake cause wider distribution. Antecedent precipitation was evaluated using the Soil Water Index (SWI), which was developed by JMA for issuing landslide alert. We could not find meaningful correlation between SWI and the earthquake-induced landslide distribution. Additionally, we found that smaller minimum size of collected landslides results in wider distribution especially between 1,000 to 100,000 m2.

An Empirical Investigation of Dispositional Antecedents and Performance-Related Outcomes of Credit Scores

ERIC Educational Resources Information Center

Bernerth, Jeremy B.; Taylor, Shannon G.; Walker, H. Jack; Whitman, Daniel S.

2012-01-01

Many organizations use credit scores as an employment screening tool, but little is known about the legitimacy of such practices. To address this important gap, the reported research conceptualized credit scores as a biographical measure of financial responsibility and investigated dispositional antecedents and performance-related outcomes. Using…

[Overweight and obesity in prepubertal schoolchildren: the association with low birth weight and family antecedents of cardiovascular disease. Embu - metropolitan region of São Paulo, 2006].

PubMed

Strufaldi, Maria Wany Louzada; Silva, Edina Mariko Koga da; Puccini, Rosana Fiorini

2011-11-01

The aim was to determine the prevalence of overweight and obesity in schoolchildren and the association with birth weight and family antecedents of cardiovascular disease. This cross-sectional study used a probabilistic sample of 929 schoolchildren aged 6 to 10 years. The variables were: body mass index (BMI), birth weight and family antecedents of cardiovascular disease. The statistical analysis consisted of the chi-square test (Pearson) and odds ratio, as association measurements. Of the schoolchildren (54.6% of which were female), 14.4% and 13.3% were overweight and obese, respectively. Low birth weight was reported among 9.4% and family antecedents of cardiovascular disease among 35.2%. Overweight or obesity (BMI e" P85) was associated with the presence of family antecedents of cardiovascular disease (OR = 1.66; 95% CI 1.23-2.23) and male sex (OR = 1.37; 95%CI 1.02-1.83); there was no association with birth weight. The results indicate the need for preventive actions for children with family antecedents of cardiovascular disease.

Micro-lightguide spectrophotometry (O2C®) as a predictor of intermediate outcome in patients with critical limb ischemia after percutaneous transluminal angioplasty (PTA).

PubMed

Weber, K; Gebauer, K; Lüders, F; Meyborg, M; Malyar, N; Goerge, T; Reinecke, H

2014-12-01

Micro-lightguide spectrophotometry (O2C®) provides easily and rapidly measurable parameters of tissue microcirculation. The aim of this study was to assess whether micro-lightguide spectrophotometer (O2C®) based parameters of the tissue microcirculation can serve as predictors of ulcer healing. Furthermore, we tried to identify cut off values to forecast patient outcome and check other diagnostic meanings of individual O2C-parameters. Forty individuals, all suffering from critical limb ischemia and arterial or arteriovenous ulcers were retrospectively investigated concerning O2C®- and ankle/toe brachial index-measurements before and up to two times after percutaneous transluminal angioplasty (PTA). At a median follow-up of 7 (range 3 to 14) months after PTA the current peripheral arterial disease (PAD) status, ulcer healing, adverse cardiovascular events including death and endovascular or surgical treatments were noted. We found in patients with healing wounds a significant increase in oxygen saturation (SO2, median 26.35±26.94%) compared to non-healers (-4.27±25.24%, P=0.006) as well as regarding blood flow (median 41.12±51.23AU vs. -9.46±24.01 AU, P=0.005). Additionally, the parameter rHb separated reliably between arterial and arteriovenous ulcers (P=0.024). In Cox regression models, increases after revascularisation of more than 6 % in SO2 (HRR=6.08, 95%CI 1.56-23.65, P=0.009) and flow decreases of less than 12 AU (HRR 4.95, 95%CI 1.42-17.31, P=0.012) were significantly associated with amputation-free survival. The O2C®-parameters SO2 and flow provide prognostic information for ulcer healing as well as for amputation-free survival, and rHB adds information about a possible arterial or arteriovenous genesis of an ulcer.

The family antecedents and the subsequent outcomes of early puberty.

PubMed

Arim, Rübab G; Tramonte, Lucia; Shapka, Jennifer D; Dahinten, V Susan; Willms, J Douglas

2011-11-01

The purpose of this study was to examine both the family antecedents and the outcomes of early puberty, with a particular focus on factors related to family socioeconomic status (SES). The study employed a comprehensive measurement of pubertal development and longitudinal data from the Canadian National Longitudinal Survey of Children and Youth. The sample (N = 8,440; 49% girls) included four cohorts of children who were followed biennially for 10 years, starting from age 4-11 to 14-21 years. Data were drawn at different years of age from these cohorts of children. Girls whose fathers were unemployed were more likely to experience early puberty than those whose fathers were employed. For boys, those living with fathers who had not finished secondary school were more likely to experience early puberty. Early maturing girls tended to engage in smoking and drinking at an earlier age compared with their peers. These findings provide support for psychosocial acceleration theory and suggest that different aspects of low family SES may act as a psychosocial stress for early pubertal maturation in boys versus girls, which may lead to engagement in drinking and smoking at a younger age, at least for girls.

Antecedents of Compliance in 2-Year-Olds From a High-Risk Sample.

ERIC Educational Resources Information Center

Erickson, Martha Farrell; Crichton, Leslie

In order to identify antecedents of infant's compliance with mothers' directions on how to solve four tasks (graded in terms of stressfulness to the infant), 194 high-risk mothers and their 2-year-old children were observed on videotape and assessed with a six-point rating scale. Data collected prenatally and postnatally at 3, 6, 12 and 18 months…

Unraveling care integration: Assessing its dimensions and antecedents in the Italian Health System.

PubMed

Calciolari, Stefano; Ilinca, Stefania

2016-01-01

In recent decades, consensus has grown on the need to organize health systems around the concept of care integration to better confront the challenges associated with demographic trends and financial sustainability. However, care integration remains an imprecise umbrella term in both the academic and policy arenas. In addition, little substantive knowledge exists on the success factors for integration initiatives. We propose a composite measure of care integration and a conceptual framework suggesting its relationships with three types of antecedents: contextual, cultural, and organizational factors. Our framework was tested using data from the Italian National Health System (NHS). We administered an ad-hoc questionnaire to all Italian local health units (LHUs), with a 60.4% response rate, and used structural equation modeling to assess the relationships between the relevant latent constructs. The results validated our measure of care integration and supported the hypothesized relationships. In particular, integration was found to be fostered by results-oriented institutional settings, a professional culture conducive to inclusiveness and shared goals, and organizational arrangements promoting clear expectations among providers. Thus, integration improves care and mediates the effects of specific operating means on care enhancement. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Parent-Child and Triadic Antecedents of Children's Social Competence: Cultural Specificity, Shared Process

ERIC Educational Resources Information Center

Feldman, Ruth; Masalha, Shafiq

2010-01-01

Guided by theories of cultural participation, the authors examined mother-child, father-child, and triadic interactive behaviors in 141 Israeli and Palestinian couples and their firstborn child at 5 and 33 months as antecedents of children's social competence. Four parent-child measures (parent sensitivity, child social engagement, parental…

Antecedents of positive self-disclosure online: an empirical study of US college students’ Facebook usage

PubMed Central

Chen, Hongliang

2017-01-01

This study investigates the factors predicting positive self-disclosure on social networking sites (SNSs). There is a formidable body of empirical research relating to online self-disclosure, but very few studies have assessed the antecedents of positive self-disclosure. To address this literature gap, the current study tests the effects of self-esteem, life satisfaction, social anxiety, privacy concerns, public self-consciousness (SC), and perceived collectivism on positive self-disclosure on SNSs. Data were collected online via Qualtrics in April 2013. Respondents were undergraduate students from the University of Connecticut. Using ordinary least squares regression, the current study found that self-esteem and perceived collectivism increased positive self-disclosure, life satisfaction, and privacy concerns decreased positive self-disclosure, and the effects of social anxiety and public SC were not significant. PMID:28579840

Antecedents of positive self-disclosure online: an empirical study of US college students' Facebook usage.

PubMed

Chen, Hongliang

2017-01-01

This study investigates the factors predicting positive self-disclosure on social networking sites (SNSs). There is a formidable body of empirical research relating to online self-disclosure, but very few studies have assessed the antecedents of positive self-disclosure. To address this literature gap, the current study tests the effects of self-esteem, life satisfaction, social anxiety, privacy concerns, public self-consciousness (SC), and perceived collectivism on positive self-disclosure on SNSs. Data were collected online via Qualtrics in April 2013. Respondents were undergraduate students from the University of Connecticut. Using ordinary least squares regression, the current study found that self-esteem and perceived collectivism increased positive self-disclosure, life satisfaction, and privacy concerns decreased positive self-disclosure, and the effects of social anxiety and public SC were not significant.

Decomposing Gratitude: Representation and Integration of Cognitive Antecedents of Gratitude in the Brain.

PubMed

Yu, Hongbo; Gao, Xiaoxue; Zhou, Yuanyuan; Zhou, Xiaolin

2018-05-23

Gratitude is a typical social-moral emotion that plays a crucial role in maintaining human cooperative interpersonal relationship. Although neural correlates of gratitude have been investigated, the neurocognitive processes that lead to gratitude, namely, the representation and integration of its cognitive antecedents, remain largely unknown. Here, we combined fMRI and a human social interactive task to investigate how benefactor's cost and beneficiary's benefit, two critical antecedents of gratitude, are encoded and integrated in beneficiary's brain, and how the neural processing of gratitude is converted to reciprocity. A coplayer decided whether to help a human participant (either male or female) avoid pain at his/her own monetary cost; the participants could transfer monetary points to the benefactor with the knowledge that the benefactor was unaware of this transfer. By independently manipulating monetary cost and the degree of pain reduction, we could identify the neural signatures of benefactor's cost and recipient's benefit and examine how they were integrated. Recipient's self-benefit was encoded in reward-sensitive regions (e.g., ventral striatum), whereas benefactor-cost was encoded in regions associated with mentalizing (e.g., temporoparietal junction). Gratitude was represented in perigenual anterior cingulate cortex (pgACC), the strength of which correlated with trait gratitude. Dynamic causal modeling showed that the neural signals representing benefactor-cost and self-benefit passed to pgACC via effective connectivities, suggesting an integrative role of pgACC in generating gratitude. Moreover, gyral ACC plays an intermediary role in converting gratitude representation into reciprocal behaviors. Our findings provide a neural mechanistic account of gratitude and its role in social-moral life. SIGNIFICANCE STATEMENT Gratitude plays an integral role in subjective well-being and harmonious interpersonal relationships. However, the neurocognitive

Evidence-Based Practice: Quality Indicator Analysis of Antecedent Exercise in Autism Spectrum Disorders

ERIC Educational Resources Information Center

Kasner, Melanie; Reid, Greg; MacDonald, Cathy

2012-01-01

The purpose of the research was to conduct a quality indicator analysis of studies exploring the effects of antecedent exercise on self-stimulatory behaviors of individuals with autism spectrum disorders (ASD). Educational Resources Information Center (ERIC), Google Scholar, SPORTDiscus, PsychINFO, and PubMed/MedLine databases from 1980 to October…

Utilizing Antecedent Manipulations and Reinforcement in the Treatment of Food Selectivity by Texture

ERIC Educational Resources Information Center

Najdowski, Adel C.; Tarbox, Jonathan; Wilke, Arthur E.

2012-01-01

Food selectivity by texture is relatively common in children. Treatments for food selectivity by texture have included components such as stimulus fading, reinforcement, and escape extinction. The purpose of the current study was to attempt to treat food selectivity by texture utilizing antecedent manipulations and reinforcement in the absence of…

Causal Models of Role Stressor Antecedents and Consequences: The Importance of Occupational Differences.

ERIC Educational Resources Information Center

Bacharach, Samuel; Bamberger, Peter

1992-01-01

Survey data from 215 nurses (10 male) and 430 civil engineers (10 female) supported the plausibility of occupation-specific models (positing direct paths between role stressors, antecedents, and consequences) compared to generic models. A weakness of generic models is the tendency to ignore differences in occupational structure and culture. (SK)

Antecedents to Disposition to Trust: Online Assessment as an Enabler of Individualized Instruction

ERIC Educational Resources Information Center

Campbell, Natalie Cathalyn

2017-01-01

The study investigated the antecedents to disposition to trust with regard to the Accelerated Reader program. The areas considered were teachers' experience, teachers' peer experience, teachers' peer support, gender, and age. The population for this study consisted of teachers who used Accelerated Reader from four school districts in Louisiana.…

"Who" Helps and Harms "Whom"? Relational Antecedents of Interpersonal Helping and Harming in Organizations

ERIC Educational Resources Information Center

Venkataramani, Vijaya; Dalal, Reeshad S.

2007-01-01

Antecedents of interpersonally directed forms of citizenship and counterproductive behaviors (i.e., interpersonal helping and harming, respectively) have been studied most often under the broad categories of individual differences and job attitudes. Although these behaviors often are exhibited within the confines of interpersonal relationships,…

Safety climate in OHSAS 18001-certified organisations: antecedents and consequences of safety behaviour.

PubMed

Fernández-Muñiz, Beatriz; Montes-Peón, José Manuel; Vázquez-Ordás, Camilo José

2012-03-01

The occupational health and safety standard OHSAS 18001 has gained considerable acceptance worldwide, and firms from diverse sectors and of varying sizes have implemented it. Despite this, very few studies have analysed safety management or the safety climate in OHSAS 18001-certified organisations. The current work aims to analyse the safety climate in these organisations, identify its dimensions, and propose and test a structural equation model that will help determine the antecedents and consequences of employees' safety behaviour. For this purpose, the authors carry out an empirical study using a sample of 131 OHSAS 18001-certified organisations located in Spain. The results show that management's commitment, and particularly communication, have an effect on safety behaviour and on safety performance, employee satisfaction, and firm competitiveness. These findings are particularly important for management since they provide evidence about the factors that should be encouraged to reduce risks and improve performance in this type of organisation. Copyright © 2011 Elsevier Ltd. All rights reserved.

Development of cesium phosphotungstate salt and chitosan composite membrane for direct methanol fuel cells.

PubMed

Xiao, Yanxin; Xiang, Yan; Xiu, Ruijie; Lu, Shanfu

2013-10-15

A novel composite membrane has been developed by doping cesium phosphotungstate salt (CsxH3-xPW12O40 (0≤x≤3), Csx-PTA) into chitosan (CTS/Csx-PTA) for application in direct methanol fuel cells (DMFCs). Uniform distribution of Csx-PTA nanoparticles has been achieved in the chitosan matrix. The proton conductivity of the composite membrane is significantly affected by the Csx-PTA content in the composite membrane as well as the Cs substitution in PTA. The highest proton conductivity for the CTS/Csx-PTA membranes was obtained with x=2 and Cs2-PTA content of 5 wt%. The value is 6×10(-3) S cm(-1) and 1.75×10(-2) S cm(-1) at 298 K and 353 K, respectively. The methanol permeability of CTS/Cs2-PTA membrane is about 5.6×10(-7), 90% lower than that of Nafion-212 membrane. The highest selectivity factor (φ) was obtained on CTS/Cs2-PTA-5 wt% composite membrane, 1.1×10(4)/Scm(-3)s. The present study indicates the promising potential of CTS/Csx-PTA composite membrane as alternative proton exchange membranes in direct methanol fuel cells. Copyright © 2013 Elsevier Ltd. All rights reserved.

Investigating the Individual Difference Antecedents of Perceived Enjoyment in Students' Use of Blogging

ERIC Educational Resources Information Center

Wang, Yi-Shun; Lin, Hsin-Hui; Liao, Yi-Wen

2012-01-01

With the proliferation of weblogs (blogs) used in educational contexts, gaining a better understanding of why students are willing to blog has become an important topic for practitioners and academics. The main purpose of this study is to explore the individual difference antecedents of perceived enjoyment and examine how they influence blogging…

Exploring the Antecedents of Learning-Related Emotions and Their Relations with Achievement Outcomes

ERIC Educational Resources Information Center

Niculescu, Alexandra Corina; Tempelaar, Dirk; Dailey-Hebert, Amber; Segers, Mien; Gijselaers, Wim

2015-01-01

Recent work suggests that learning-related emotions (LREs) play a crucial role in performance especially in the first year of university, a period of transition for most students; however, additional research is needed to show how these emotions emerge. We developed a framework which links a course-contextualized antecedent--academic control in…

Antecedent rest may not be necessary for automated office blood pressure at lower treatment targets.

PubMed

Colella, Tracey J F; Tahsinul, Anam; Gatto, Hannah; Oh, Paul; Myers, Martin G

2018-06-14

In SPRINT (Systolic Blood Pressure Intervention Trial), use of the Omron 907XL blood pressure (BP) monitor set at 5 minutes of antecedent rest to record BP produced an automated office BP value 7/6 mm Hg lower than awake ambulatory BP at 27 months. The authors studied the impact on automated office BP of setting the Omron 907XL to 0 minutes instead of 5 minutes of rest in patients with readings in the lower normal BP range, similar to on-treatment BP in the SPRINT intensive therapy group. Patients (n = 100) in cardiac rehabilitation were randomized to three BP readings at 1-minute intervals using an Omron 907XL BP device set for 5 or 0 minutes of antecedent rest. Mean (±standard deviation) automated office BP (mm Hg) after 5 minutes of rest (120.2 ± 14.6/66.9 ± 8.6 mm Hg) was lower (P < .001/P < .01) than without rest (124.2 ± 16.4/67.9 ± 9.1 mm Hg). When target BP is in the lower normal range, automated office BP recorded without antecedent rest using an Omron 907XL device should be higher and closer to the awake ambulatory BP, compared with readings taken after 5 minutes of rest. ©2018 Wiley Periodicals, Inc.

The antecedents and belief-polarized effects of thought confidence.

PubMed

Chou, Hsuan-Yi; Lien, Nai-Hwa; Liang, Kuan-Yu

2011-01-01

This article investigates 2 possible antecedents of thought confidence and explores the effects of confidence induced before or during ad exposure. The results of the experiments indicate that both consumers' dispositional optimism and spokesperson attractiveness have significant effects on consumers' confidence in thoughts that are generated after viewing the advertisement. Higher levels of thought confidence will influence the quality of the thoughts that people generate, lead to either positively or negatively polarized message processing, and therefore induce better or worse advertising effectiveness, depending on the valence of thoughts. The authors posit the belief-polarization hypothesis to explain these findings.

Risk factors for burnout among caregivers working in nursing homes.

PubMed

Kandelman, Nadia; Mazars, Thierry; Levy, Antonin

2018-01-01

(i) To assess the level of burnout in nursing home caregivers within a unique healthcare network in France and (ii) to evaluate potential risk factors in this population. Burnout syndrome occurs frequently among nursing home caregivers and has strong detrimental effects on the quality of health care for residents. We used an observational survey to study burnout in nursing home caregivers. The survey was used to quantify burnout level (Maslach Burnout Inventory) and potential risk factors and was implemented from October 2013-April 2014. A logistic regression was used to explore the association between burnout and its risk factors. Three hundred and sixty questionnaires were delivered to caregivers in 14 nursing homes within a unique healthcare network. The response rate was 37% (132/360), and 124/132 (94%) surveys were analysed. Caregiver burnout rate was 40% (49/124). Median age was 41 years (range, 20-70) and most caregivers were female. The most common profession (n = 54; 44%) was nurse caregiver and 90% (n = 112) had an antecedent of bullying by a resident. Risk factors identified were as follows: the presence of institutional protocols (death announcement [OR: 3.7] and pain assessment [OR: 2.8]), working in a profit-making establishment (OR: 2.6) and the antecedent of bullying by a resident (OR: 6.2). Factors most negatively associated with burnout included: practising pastimes (OR: 0.4) and working as a nurse (OR: 0.3). The only significant risk factor in the multivariate analysis was the antecedent of bullying by a resident (OR: 5.3). Several specific risk factors for burnout in nursing home caregivers were identified. In high-risk populations of healthcare professionals, screening and management of risk factors is crucial for preventing burnout. © 2017 John Wiley & Sons Ltd.

Antecedents of Toddler Gender Segregation: Cognitive Consonance, Gender-Typed Toy Preferences and Behavioral Compatibility.

ERIC Educational Resources Information Center

Moller, Lora C.; Serbin, Lisa A.

1996-01-01

Possible antecedents of toddler gender separation were studied with 57 toddlers with a mean age of 35 months. There were no differences between gender-segregating and nonsegregating children regarding gender toy preferences or gender awareness, but teachers saw gender-segregating girls as more socially sensitive. (SLD)

The mid-childhood and adolescent antecedents of women's external locus of control orientation.

PubMed

Golding, Jean; Gregory, Steven; Iles-Caven, Yasmin; Nowicki, Stephen

2017-01-01

Background : External locus of control orientation (ELOC) is a powerful predictor of adverse consequences in regard to health, educational attainment, inter-personal relationships and well-being. Although many cross-sectional studies have been carried out, relatively little is known about antecedent factors influencing the development of ELOC. Methods : Over 12,000 pregnant women who enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC) in south-west England, had completed a brief version of the Adult Nowicki-Strickland Internal-External LOC scale, together with detailed questions concerning their own parents and childhood.  A series of hypothesis-free structured backwards stepwise logistic regression analyses used an exposome approach with ELOC as the outcome. Results : Significant positive associations were found with smoking of the parents of the surveyed women, including prenatal exposure, and their own onset of regular smoking in mid-childhood (6-11 years). Increased odds of ELOC were also found with the absence of their fathers in early childhood, presence of older siblings, and with being born and brought up in the same area as they resided in at the time surveyed. Protective influences in the surveyed women included positive rating of their mother's care, having a relatively educated mother, attending boarding school, their own age (the older they were, the less likely were they to have an external orientation), having a mentally ill parent, a sibling hospitalized or a relative die. Conclusions : There are two conclusions: (i) that not all stressful events contribute to the development of ELOC and it would be essential for models of antecedents of ELOC to take note of this complexity, and (ii) there are consistent (albeit unexpected) findings that highlight associations with cigarette smoke exposure of the woman from fetal life through to when starting to smoke regularly herself in mid-childhood. It is important that these findings

Do the Antecedents and Consequences of Loneliness Change from Middle Adulthood into Old Age?

ERIC Educational Resources Information Center

Böger, Anne; Huxhold, Oliver

2018-01-01

Loneliness is a stressful experience that appears to interfere with health and social integration (SI). Recently, researchers proposed that both antecedents and consequences of loneliness may change across the life span. To fully understand the processes related to loneliness it may thus be crucial to adopt an age-differentiated perspective. This…

Integrating Real-Time Antecedent Rubrics via Blackboard™ into a Community College General Psychology Class

ERIC Educational Resources Information Center

Goomas, David

2015-01-01

Numerous studies have reported on the innovative and effective delivery of online course content by community colleges, but not much has been done on how learning management systems (LMS) can deliver real-time (immediate data delivery) antecedents that inform students of performance requirements. This pilot study used Blackboard's™ interactive…

AN EVALUATION OF ANTECEDENT EXERCISE ON BEHAVIOR MAINTAINED BY AUTOMATIC REINFORCEMENT USING A THREE-COMPONENT MULTIPLE SCHEDULE

PubMed Central

Morrison, Heather; Roscoe, Eileen M; Atwell, Amy

2011-01-01

We evaluated antecedent exercise for treating the automatically reinforced problem behavior of 4 individuals with autism. We conducted preference assessments to identify leisure and exercise items that were associated with high levels of engagement and low levels of problem behavior. Next, we conducted three 3-component multiple-schedule sequences: an antecedent-exercise test sequence, a noncontingent leisure-item control sequence, and a social-interaction control sequence. Within each sequence, we used a 3-component multiple schedule to evaluate preintervention, intervention, and postintervention effects. Problem behavior decreased during the postintervention component relative to the preintervention component for 3 of the 4 participants during the exercise-item assessment; however, the effects could not be attributed solely to exercise for 1 of these participants. PMID:21941383

Antecedents of team potency and team effectiveness: an examination of goal and process clarity and servant leadership.

PubMed

Hu, Jia; Liden, Robert C

2011-07-01

Integrating theories of self-regulation with team and leadership literatures, this study investigated goal and process clarity and servant leadership as 3 antecedents of team potency and subsequent team effectiveness, operationalized as team performance and organizational citizenship behavior. Our sample of 304 employees represented 71 teams in 5 banks. Results showed that team-level goal and process clarity as well as team servant leadership served as 3 antecedents of team potency and subsequent team performance and team organizational citizenship behavior. Furthermore, we found that servant leadership moderated the relationships between both goal and process clarity and team potency, such that the positive relationships between both goal and process clarity and team potency were stronger in the presence of servant leadership.

Positive antecedent and consequent components in child compliance training.

PubMed

Speights Roberts, Dannell; Tingstrom, Daniel H; Olmi, D Joe; Bellipanni, Kimberly D

2008-01-01

This study evaluates the effects of positive antecedent (effective instruction delivery and time-in) and consequent components (contingent praise) on the compliance of 4 children in a clinic setting. Results suggest that the use of effective instruction delivery alone increased compliance above baseline levels for the 4 children and that the additions of time-in and contingent praise further increased compliance for 3 of the 4 children. All three positive treatment components resulted in compliance greater than 80% for all children. Compliance levels were maintained at 1-month follow-up for 2 children. Results are discussed in terms of the benefits to using all of the positive components in compliance training.

Epileptic encephalopathy in children with risk factors for brain damage.

PubMed

Ricardo-Garcell, Josefina; Harmony, Thalía; Porras-Kattz, Eneida; Colmenero-Batallán, Miguel J; Barrera-Reséndiz, Jesús E; Fernández-Bouzas, Antonio; Cruz-Rivero, Erika

2012-01-01

In the study of 887 new born infants with prenatal and perinatal risk factors for brain damage, 11 children with West syndrome that progressed into Lennox-Gastaut syndrome and another 4 children with Lennox-Gastaut syndrome that had not been preceded by West syndrome were found. In this study we present the main findings of these 15 subjects. In all infants multifactor antecedents were detected. The most frequent risk factors were prematurity and severe asphyxia; however placenta disorders, sepsis, and hyperbilirubinemia were also frequent. In all infants MRI direct or secondary features of periventricular leukomalacia were observed. Followup of all infants showed moderate to severe neurodevelopmental delay as well as cerebral palsy. It is concluded that prenatal and perinatal risk factors for brain damage are very important antecedents that should be taken into account to follow up those infants from an early age in order to detect and treat as early as possible an epileptic encephalopathy.

Examining antecedents and consequences of gambling passion: the case of gambling on horse races.

PubMed

Lee, Choong-Ki; Back, Ki-Joon; Hodgins, David C; Lee, Tae Kyung

2013-12-01

This study investigated the antecedents and consequences of gambling passion using structural equation modeling to examine relationships among gambling motivation, passion, emotion, and behavioral intentions in the horse racing industry. An onsite survey was conducted with 447 patrons at a horseracing park in South Korea. A confirmatory factor analysis showed that the Gambling Passion Scale was valid and reliable, resulting in two sub-scales: obsessive passion (OP) and harmonious passion (HP). Study results indicated that extrinsic motivation influenced OP whereas intrinsic motivation significantly affected HP. Furthermore, OP was correlated with negative emotion, whereas HP was related to positive emotion. Gamblers' satisfaction was found to be influenced positively by positive emotion and negatively by negative emotion. Finally, satisfaction appeared to affect gamblers' behavioral intentions. Study results echoed the notion of distinct and separate gambling motivations and passions among horse racing gamblers. Furthermore, results identified specific areas to which horse racing operators or policy makers should pay special attention in developing effective marketing strategies to promote responsible gambling.

Hypoglycemia-Associated EEG Changes Following Antecedent Hypoglycemia in Type 1 Diabetes Mellitus.

PubMed

Sejling, Anne-Sophie; Kjaer, Troels W; Pedersen-Bjergaard, Ulrik; Remvig, Line S; Frandsen, Christian S; Hilsted, Linda; Faber, Jens; Holst, Jens Juul; Tarnow, Lise; Møller, Jakob Skadkær; Nielsen, Martin N; Thorsteinsson, Birger; Juhl, Claus B

2017-02-01

Recurrent hypoglycemia has been shown to blunt hypoglycemia symptom scores and counterregulatory hormonal responses during subsequent hypoglycemia. We therefore studied whether hypoglycemia-associated electroencephalogram (EEG) changes are affected by an antecedent episode of hypoglycemia. Twenty-four patients with type 1 diabetes mellitus (10 with normal hypoglycemia awareness, 14 with hypoglycemia unawareness) were studied on 2 consecutive days by hyperinsulinemic glucose clamp at hypoglycemia (2.0-2.5 mmol/L) during a 1-h period. EEG was recorded, cognitive function assessed, and hypoglycemia symptom scores and counterregulatory hormonal responses were obtained. Twenty-one patients completed the study. Hypoglycemia-associated EEG changes were identified on both days with no differences in power or frequency distribution in the theta, alpha, or the combined theta-alpha band during hypoglycemia on the 2 days. Similar degree of cognitive dysfunction was also present during hypoglycemia on both days. When comparing the aware and unaware group, there were no differences in the hypoglycemia-associated EEG changes. There were very subtle differences in cognitive function between the two groups on day 2. The symptom response was higher in the aware group on both days, while only subtle differences were seen in the counterregulatory hormonal response. Antecedent hypoglycemia does not affect hypoglycemia-associated EEG changes in patients with type 1 diabetes mellitus.

Brief Antecedent Assessment and Treatment of Tics in the General Education Classroom: A Preliminary Investigation

ERIC Educational Resources Information Center

Watson, T.; Dufrene, Brad; Weaver, Adam; Butler, Tonya; Meeks, Caroline

2005-01-01

The purpose of this study was to determine if specific classroom antecedents were associated with motor and vocal tics in two males diagnosed with Tourette's syndrome. A functional assessment consisting of teacher and student interviews, direct observations, brief functional analysis, and confirmatory naturalistic observations indicated that…

Understanding the antecedents of Korean high school students' drinking refusal self-efficacy: parental influence, peer influence, and behavior.

PubMed

Jang, Su Ahn; Cho, Namauk; Yoo, Jina

2011-12-29

The current study examined the factors that influence Korean adolescents' drinking refusal self-efficacy, which is known to be associated with alcohol use and drinking intentions. Specifically, this study considered parental monitoring, parent-child communication satisfaction, peer influence, and prior alcohol use as possible antecedents of Korean high school students' drinking refusal self-efficacy. High school students (n = 538) in South Korea responded to the current study. The data revealed that parent-child communication satisfaction facilitated parental monitoring, and these factors indirectly predicted adolescents' drinking behavior through peer influence. We also found that prior drinking, parental monitoring, and peer influence were directly associated with drinking refusal self-efficacy, and the self-efficacy, in turn, was associated with drinking intentions. These results not only suggest that drinking refusal self-efficacy are related to drinking behavior and intentions, but they also provide a theoretical explanation for how parental and peer influences are associated with adolescents' drinking refusal self-efficacy.

Understanding the Antecedents of Korean High School Students’ Drinking Refusal Self-Efficacy: Parental Influence, Peer Influence, and Behavior

PubMed Central

Jang, Su Ahn; Cho, NamAuk; Yoo, Jina

2012-01-01

The current study examined the factors that influence Korean adolescents’ drinking refusal self-efficacy, which is known to be associated with alcohol use and drinking intentions. Specifically, this study considered parental monitoring, parent-child communication satisfaction, peer influence, and prior alcohol use as possible antecedents of Korean high school students’ drinking refusal self-efficacy. High school students (n = 538) in South Korea responded to the current study. The data revealed that parent-child communication satisfaction facilitated parental monitoring, and these factors indirectly predicted adolescents’ drinking behavior through peer influence. We also found that prior drinking, parental monitoring, and peer influence were directly associated with drinking refusal self-efficacy, and the self-efficacy, in turn, was associated with drinking intentions. These results not only suggest that drinking refusal self-efficacy are related to drinking behavior and intentions, but they also provide a theoretical explanation for how parental and peer influences are associated with adolescents’ drinking refusal self-efficacy. PMID:22980099

Systemic Disaffection: A Three-Factor Theory of Political Alienation.

ERIC Educational Resources Information Center

Long, Samuel

The paper develops a theory of political alienation based upon interactions among three antecedent conditions. Political alienation is interpreted as combining feelings of inefficacy, discontent, cynicism, estrangement, and hopelessness. The factors evaluated for their contribution to political alienation are: (1) critical perceptions of…

Effect of antecedent terrestrial land-use on C and N cycling in created wetlands

NASA Astrophysics Data System (ADS)

McCalley, C. K.; Al Graiti, T.; Williams, T.; Huang, S.; McGowan, M. B.; Eddingsaas, N. C.; Tyler, A. C.

2017-12-01

Land-use legacies and their interaction with both management actions and climate variability has a poorly characterized impact on the development of ecosystem functions and the trajectory of climate-carbon feedbacks. The complex structure-function relationships in wetlands foster delivery of valuable, climate sensitive, ecosystem services (carbon sequestration, nutrient removal, flood control, etc.) but also make them susceptible to colonization by invasive plants and lead to emission of key greenhouse gases. This project uses created wetland ecosystems as a model to understand how heterogeneity in antecedent conditions interacts with management options to create unique structure-function scenarios and a range of climate feedback outcomes. We utilized ongoing experiments in created wetlands that differ in antecedent conditions (crop agriculture, livestock grazing) and investigated how management options (invasive species removal, organic matter addition) interact with legacy impacts to promote key ecosystem functions, including greenhouse gas emissions, carbon sequestration, denitrification and plant biodiversity. The effects of antecedent land-use on soil chemistry, coupled with hydrologic patterns resulted in wetlands with divergent C and N dynamics despite their similar creation history. Additionally, the occurrence of extreme weather events (drought and excessive flooding) during the study period highlighted the overarching role that increased climate variability will play in determining key ecosystem processes in wetlands. Responses to management were linked to hydro-period: while organic matter addition successfully increased soil organic matter to more closely replicate natural systems at all sites, it had the largest impact on C and N cycling when soils were saturated. Overall, environmental conditions that promoted saturated soils, both those shaped by human activities or climate extremes, enhanced primary productivity, nutrient removal and greenhouse gas

Individual and contextual antecedents of workplace aggression in aged care nurses and certified nursing assistants.

PubMed

Rodwell, John; Demir, Defne; Gulyas, Andre

2015-08-01

Employees in aged care are at high risk of workplace aggression. Research rarely examines the individual and contextual antecedents of aggression for specific types of workers within these settings, such as nurses and certified nursing assistants (CNAs). The study aimed to explore characteristics of the job demands-resources model (JD-R), negative affectivity (NA) and demographics related to workplace aggression for aged care workers. The survey study was based on 208 nurses and 83 CNAs working within aged care. Data from each group were analysed separately using ordinal regressions. Both aged care nurses and CNAs reported high rates of bullying, external emotional abuse, threat of assault and physical assault. Elements of the JD-R model and individual characteristics were related to aggression types for both groups. Characteristics of the JD-R model, NA and demographics are important in understanding the antecedents of aggression observed among aged care workers. © 2015 Wiley Publishing Asia Pty Ltd.

An Interdisciplinary Meta-Analysis of the Potential Antecedents, Correlates, and Consequences of Protege Perceptions of Mentoring

ERIC Educational Resources Information Center

Eby, Lillian Turner de Tormes; Allen, Tammy D.; Hoffman, Brian J.; Baranik, Lisa E.; Sauer, Julia B.; Baldwin, Sean; Morrison, M. Ashley; Kinkade, Katie M.; Maher, Charleen P.; Curtis, Sara; Evans, Sarah C.

2013-01-01

This meta-analysis summarized youth, academic, and workplace research on the potential antecedents (demographics, human capital, and relationship attributes), correlates (interaction frequency, relationship length, performance, motivation, and social capital), and consequences (attitudinal, behavioral, career-related, and health-related outcomes)…

ADHD in Tunisian Adolescents: Prevalence and Associated Factors.

PubMed

Mhalla, Ahmed; Guedria, Asma; Brahem, Takoua; Amamou, Badii; Sboui, Wiem; Gaddour, Naoufel; Gaha, Lotfi

2018-01-01

The aims of the study were to determine the prevalence of ADHD in a population of high school students and to explore the factors associated with this disorder. This was a cross-sectional study that had included 447 high school students. The diagnosis of ADHD was made by the Adult ADHD Self-Report Scale translated in Arabic language. The sociodemographic and clinical characteristics were evaluated by a preestablished questionnaire. The self-esteem was assessed by the Rosenberg Self-Esteem Scale. The prevalence of ADHD was 18.1%. The logistic regression analysis showed an association between the diagnosis of ADHD and the bad relationships with parents (odds ratio [OR] = 16.43; p < 10-3), the presence of personal psychiatric antecedents (OR = 12.16; p < 10-3), internet misuse (OR = 2.39; p = .014), and maltreatment antecedents (OR = 3.16; p = .009). The prevalence of ADHD in this study was one of the highest prevalence reported. The factors associated with ADHD may have diagnostic and therapeutic implications.

The Impact of Employee Engagement Factors and Job Satisfaction on Turnover Intent

ERIC Educational Resources Information Center

Berry, Mary Lynn; Morris, Michael L.

2008-01-01

The current literature review examined a proposed relationship between the antecedent-employee engagement factors--and the outcome variable turnover intent mediated by job satisfaction. Kahn's Personal Engagement Theory, Equity Theory, and Herzberg's Two-Factor Theory of Job Satisfaction were used as the theoretical underpinnings for the review.…

Antecedent thermal injury worsens split-thickness skin graft quality: A clinically relevant porcine model of full-thickness burn, excision and grafting.

PubMed

Carlsson, Anders H; Rose, Lloyd F; Fletcher, John L; Wu, Jesse C; Leung, Kai P; Chan, Rodney K

2017-02-01

Current standard of care for full-thickness burn is excision followed by autologous split-thickness skin graft placement. Skin grafts are also frequently used to cover surgical wounds not amenable to linear closure. While all grafts have potential to contract, clinical observation suggests that antecedent thermal injury worsens contraction and impairs functional and aesthetic outcomes. This study evaluates the impact of antecedent full-thickness burn on split-thickness skin graft scar outcomes and the potential mediating factors. Full-thickness contact burns (100°C, 30s) were created on the backs of anesthetized female Yorkshire Pigs. After seven days, burn eschar was tangentially excised and covered with 12/1000th inch (300μm) split-thickness skin graft. For comparison, unburned wounds were created by sharp excision to fat before graft application. From 7 to 120days post-grafting, planimetric measurements, digital imaging and biopsies for histology, immunohistochemistry and gene expression were obtained. At 120days post-grafting, the Observer Scar Assessment Scale, colorimetry, contour analysis and optical graft height assessments were performed. Twenty-nine porcine wounds were analyzed. All measured metrics of clinical skin quality were significantly worse (p<0.05) in burn injured wounds. Histological analysis supported objective clinical findings with marked scar-like collagen proliferation within the dermis, increased vascular density, and prolonged and increased cellular infiltration. Observed differences in contracture also correlated with earlier and more prominent myofibroblast differentiation as demonstrated by α-SMA staining. Antecedent thermal injury worsens split-thickness skin graft quality, likely by multiple mechanisms including burn-related inflammation, microscopically inadequate excision, and dysregulation of tissue remodeling. A valid, reliable, clinically relevant model of full-thickness burn, excision and skin replacement therapy has been

The Use of Structural Analysis to Develop Antecedent-Based Interventions for Students with Autism

ERIC Educational Resources Information Center

Stichter, Janine P.; Randolph, Jena K.; Kay, Denise; Gage, Nicholas

2009-01-01

Evidence continues to maintain that the use of antecedent variables (i.e., instructional practices, and environmental characteristics) increase prosocial and adaptive behaviors of students with disabilities (e.g., Kern et al. in J Appl Behav Anal 27(1):7-19, 1994; Stichter et al. in Behav Disord 30:401-418, 2005). This study extends the literature…

Exploring a Decrease in Recognition Performance for Non-Antecedents Following the Processing of Anaphors

ERIC Educational Resources Information Center

Dopkins, Stephen; Nordlie, Johanna

2011-01-01

Recognition judgments to the non-antecedents of a repeated-noun anaphor are slower and less accurate after than before the processing of the anaphor. Disagreement exists as to whether this pattern of performance reflects a bias shift carried out by a memory process associated with the recognition of a word that has previously occurred in the…

Effect of antecedent soil moisture on preferential flow in a texture-contrast soil

NASA Astrophysics Data System (ADS)

Hardie, Marcus A.; Cotching, William E.; Doyle, Richard B.; Holz, Greg; Lisson, Shaun; Mattern, Kathrin

2011-02-01

SummaryThe effect of soil moisture status on preferential flow in a texture-contrast soil was investigated by applying 25 mm Brilliant Blue dye tracer to soil profiles at high and low antecedent soil moisture. Differences in soil morphology and chemistry between soil profiles had little effect on the depth of dye infiltration and dye distribution down the profile. Antecedent soil moisture strongly influenced the type, depth and rate of dye tracer movement. In the wet treatment, the dye tracer infiltrated to depths between 0.24 and 0.40 m, at an average rate of 120 mm h -1. Whilst in the dry treatment, the same volume of dye tracer infiltrated to between 0.85 and 1.19 m depth at an average rate of 1160 mm h -1. In dry antecedent conditions, finger flow developed in the A1 horizon as a result of water repellency. In the wet treatment, the wetting front developed permutations but did not break into fingers. Despite similar particle size distributions, flow in the A2 e was slower than the A1 horizon, due to the absence of macropores. In the dry treatment, the dye tracer ponded on the upper surface of the B21 horizon, which then spilled down the sides of the large clay columns as rivulets, at rates of between 2000 and 3000 mm h -1. The dye tracer accumulated at the base of the columns resulting in backfilling of the inter column shrinkage cracks, at an estimated rate of 750 mm h -1. In the subsoil, water movement occurred via shrinkage cracks which resulted in flow by-passing 99% of the soil matrix in the B21 horizon and 94% of the soil matrix in the B22 horizon. Evidence of rapid and deep infiltration in 'dry' texture-contrast soils has implications for water and solute management. This knowledge could be used to: (i) improve irrigation and fertilizer efficiency (ii) explain variations in crop yield (iii) reduce salinity through improved leaching practices, (iv) reduce the risk of agrochemicals contaminating shallow groundwater.

Historical antecedents to the philosophy of Paul Feyerabend.

PubMed

Munévar, Gonzalo

2016-06-01

Paul Feyerabend has been considered a very radical philosopher of science for proposing that we may advance hypotheses contrary to well-confirmed experimental results, that observations make theoretical assumptions, that all methodological rules have exceptions, that ordinary citizens may challenge the judgment of experts, and that human happiness should be a key value for science. As radical as these theses may sound, they all have historical antecedents. In defending the Copernican view, Galileo exemplified the first two; Mill, Aristotle and Machiavelli all argued for pluralism; Aristotle gave commonsense reasons for why ordinary citizens may be able to judge the work of experts; and a combination of Plato's and Aristotle's views can offer strong support for the connection between science and happiness. Copyright © 2015 Elsevier Ltd. All rights reserved.

Antecedents and consequences of emotional display rule perceptions.

PubMed

Diefendorff, James M; Richard, Erin M

2003-04-01

Central to all theories of emotional labor is the idea that individuals follow emotional display rules that specify the appropriate expression of emotions on the job. This investigation examined antecedents and consequences of emotional display rule perceptions. Full-time working adults (N = 152) from a variety of occupations provided self-report data, and supervisors and coworkers completed measures pertaining to the focal employees. Results using structural equation modeling revealed that job-based interpersonal requirements, supervisor display rule perceptions, and employee extraversion and neuroticism were predictive of employee display rule perceptions. Employee display rule perceptions, in turn, were related to self-reported job satisfaction and coworker ratings of employees' emotional displays on the job. Finally, neuroticism had direct negative relationships with job satisfaction and coworker ratings of employees' emotional displays.

Factors Predictive of Mathematics Achievement in Kindergarten, First and Third Grades: An Opportunity-Propensity Analysis

ERIC Educational Resources Information Center

Byrnes, James P.; Wasik, Barbara A.

2009-01-01

A secondary analysis of the Early Childhood Longitudinal Study-Kindergarten Sample (N = 17,401) was conducted to determine the factors that are most strongly associated with math achievement during kindergarten, first grade, and third grade. Factors from the following three categories were considered: antecedent factors (e.g., family…

Identifying Patterns of Situational Antecedents to Heavy Drinking among College Students

PubMed Central

Lau-Barraco, Cathy; Linden-Carmichael, Ashley N.; Braitman, Abby L.; Stamates, Amy L.

2016-01-01

Background Emerging adults have the highest prevalence of heavy drinking as compared to all other age groups. Given the negative consequences associated with such drinking, additional research efforts focused on at-risk consumption are warranted. The current study sought to identify patterns of situational antecedents to drinking and to examine their associations with drinking motivations, alcohol involvement, and mental health functioning in a sample of heavy drinking college students. Method Participants were 549 (65.8% women) college student drinkers. Results Latent profile analysis identified three classes based on likelihood of heavy drinking across eight situational precipitants. The “High Situational Endorsement” group reported the greatest likelihood of heavy drinking in most situations assessed. This class experienced the greatest level of alcohol-related harms as compared to the “Low Situational Endorsement” and “Moderate Situational Endorsement” groups. The Low Situational Endorsement class was characterized by the lowest likelihood of heavy drinking across all situational antecedents and they experienced the fewest alcohol-related harms, relative to the other classes. Class membership was related to drinking motivations with the “High Situational Endorsement” class endorsing the highest coping- and conformity-motivated drinking. The “High Situational Endorsement” class also reported experiencing more mental health symptoms than other groups. Conclusions The current study contributed to the larger drinking literature by identifying profiles that may signify a particularly risky drinking style. Findings may help guide intervention work with college heavy drinkers. PMID:28163666

Evaluation of Increasing Antecedent Specificity in Goal Statements on Adherence to Positive Behavior-Management Strategies

ERIC Educational Resources Information Center

Cohrs, Corey M.; Shriver, Mark D.; Burke, Raymond V.; Allen, Keith D.

2016-01-01

We evaluated the impact of antecedent specificity in goal statements on adherence to positive behavior-management strategies. Teaching staff were recruited from 2 different school settings where there were routine expectations to use behavior-specific praise in the classroom, but adherence was poor. In a concurrent multiple baseline design, the…

The mid-childhood and adolescent antecedents of women’s external locus of control orientation

PubMed Central

Golding, Jean; Gregory, Steven; Iles-Caven, Yasmin; Nowicki, Stephen

2017-01-01

Background: External locus of control orientation (ELOC) is a powerful predictor of adverse consequences in regard to health, educational attainment, inter-personal relationships and well-being. Although many cross-sectional studies have been carried out, relatively little is known about antecedent factors influencing the development of ELOC. Methods: Over 12,000 pregnant women who enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC) in south-west England, had completed a brief version of the Adult Nowicki-Strickland Internal-External LOC scale, together with detailed questions concerning their own parents and childhood.  A series of hypothesis-free structured backwards stepwise logistic regression analyses used an exposome approach with ELOC as the outcome. Results: Significant positive associations were found with smoking of the parents of the surveyed women, including prenatal exposure, and their own onset of regular smoking in mid-childhood (6-11 years). Increased odds of ELOC were also found with the absence of their fathers in early childhood, presence of older siblings, and with being born and brought up in the same area as they resided in at the time surveyed. Protective influences in the surveyed women included positive rating of their mother’s care, having a relatively educated mother, attending boarding school, their own age (the older they were, the less likely were they to have an external orientation), having a mentally ill parent, a sibling hospitalized or a relative die. Conclusions: There are two conclusions: (i) that not all stressful events contribute to the development of ELOC and it would be essential for models of antecedents of ELOC to take note of this complexity, and (ii) there are consistent (albeit unexpected) findings that highlight associations with cigarette smoke exposure of the woman from fetal life through to when starting to smoke regularly herself in mid-childhood. It is important that these findings are

In-flight near- and far-field acoustic data measured on the Propfan Test Assessment (PTA) testbed and with an adjacent aircraft

NASA Astrophysics Data System (ADS)

Woodward, Richard P.; Loeffler, Irvin J.

1993-04-01

Flight tests to define the far-field tone source at cruise conditions were completed on the full-scale SR-7L advanced turboprop that was installed on the left wing of a Gulfstream 2 aircraft. This program, designated Propfan Test Assessment (PTA), involved aeroacoustic testing of the propeller over a range of test conditions. These measurements defined source levels for input into long-distance propagation models to predict en route noise. In-flight data were taken for seven test cases. Near-field acoustic data were taken on the Gulfstream fuselage and on a microphone boom that was mounted on the Gulfstream wing outboard of the propeller. Far-field acoustic data were taken by an acoustically instrumented Learjet that flew in formation with the Gulfstream. These flight tests were flown from El Paso, Texas, and from the NASA Lewis Research Center. A comprehensive listing of the aeroacoustic results from these flight tests which may be used for future analysis are presented.

In-flight near- and far-field acoustic data measured on the Propfan Test Assessment (PTA) testbed and with an adjacent aircraft

NASA Technical Reports Server (NTRS)

Woodward, Richard P.; Loeffler, Irvin J.

1993-01-01

Flight tests to define the far-field tone source at cruise conditions were completed on the full-scale SR-7L advanced turboprop that was installed on the left wing of a Gulfstream 2 aircraft. This program, designated Propfan Test Assessment (PTA), involved aeroacoustic testing of the propeller over a range of test conditions. These measurements defined source levels for input into long-distance propagation models to predict en route noise. In-flight data were taken for seven test cases. Near-field acoustic data were taken on the Gulfstream fuselage and on a microphone boom that was mounted on the Gulfstream wing outboard of the propeller. Far-field acoustic data were taken by an acoustically instrumented Learjet that flew in formation with the Gulfstream. These flight tests were flown from El Paso, Texas, and from the NASA Lewis Research Center. A comprehensive listing of the aeroacoustic results from these flight tests which may be used for future analysis are presented.

Science Teaching Efficacy of Preservice Elementary Teachers: Examination of the Multiple Factors Reported as Influential

ERIC Educational Resources Information Center

Tastan Kirik, Özgecan

2013-01-01

This study explores the science teaching efficacy beliefs of preservice elementary teachers and the relationship between efficacy beliefs and multiple factors such as antecedent factors (participation in extracurricular activities and number of science and science teaching methods courses taken), conceptual understanding, classroom management…

Childhood Risk Factors for Early-Onset Drinking*

PubMed Central

Donovan, John E.; Molina, Brooke S. G.

2011-01-01

Objective: There is relatively little research on the childhood antecedent predictors of early-onset alcohol use. This study examined an array of psychosocial variables assessed at age 10 and reflecting Problem Behavior Theory as potential antecedent risk factors for the initiation of alcohol use at age 14 or younger. Method: A sample of 452 children (238 girls) ages 8 or 10 and their families was drawn from Allegheny County, PA, using targeted-age directory sampling and random-digit dialing procedures. Children and parents were interviewed using computer-assisted interviews. Logistic regression analyses were used to examine the age-10 univariate and multivariate predictors of the initiation of alcohol use by age 14 or younger. Results: Twenty-five percent of the sample reported having more than a sip or a taste of alcohol in their life by age 14. Sex, race, and age cohort did not relate to early drinking status. Children with two parents were less likely to initiate drinking early. Early initiation of drinking related significantly to an array of antecedent risk factors (personality, social environment, and behavioral) assessed at age 10 that reflect psychosocial proneness for problem behavior. In the multivariate model, the variables most predictive of early-onset drinking were having a single parent, sipping or tasting alcohol by age 10, having parents who also started drinking at an early age, and parental drinking frequency. Conclusions: Initiation of alcohol use by age 14 reflects childhood psychosocial proneness to engage in problem behavior as measured by Problem Behavior Theory and having a family environment conducive to alcohol use. PMID:21906502

Facet personality and surface-level diversity as team mental model antecedents: implications for implicit coordination.

PubMed

Fisher, David M; Bell, Suzanne T; Dierdorff, Erich C; Belohlav, James A

2012-07-01

Team mental models (TMMs) have received much attention as important drivers of effective team processes and performance. Less is known about the factors that give rise to these shared cognitive structures. We examined potential antecedents of TMMs, with a specific focus on team composition variables, including various facets of personality and surface-level diversity. Further, we examined implicit coordination as an important outcome of TMMs. Results suggest that team composition in terms of the cooperation facet of agreeableness and racial diversity were significantly related to team-focused TMM similarity. TMM similarity was also positively predictive of implicit coordination, which mediated the relationship between TMM similarity and team performance. Post hoc analyses revealed a significant interaction between the trust facet of agreeableness and racial diversity in predicting TMM similarity. Results are discussed in terms of facilitating the emergence of TMMs and corresponding implications for team-related human resource practices. (PsycINFO Database Record (c) 2012 APA, all rights reserved).

Family Factors Related to Competence in Young, Disadvantaged Mexican-American Children. Part of the Final Report on Head Start Evaluation and Research: 1968-69 to the Office of Economic Opportunity.

ERIC Educational Resources Information Center

Stedman, James M.; McKenzie, Richard E.

As part of the continuing search for the environmental antecedents of competence in young children, this study investigated several parameters of a population of disadvantaged Mexican-American children. The factors of child competence on which this study focused were behavioral adjustment and linguistic ability. The antecedents of competence were…

Antecedents of Career Exploration among Hong Kong Chinese University Students: Testing Contextual and Developmental Variables

ERIC Educational Resources Information Center

Cheung, Raysen; Arnold, John

2010-01-01

In this study we investigate the antecedents of career exploration. We apply the perspectives of Flum and Blustein [Flum, H., & Blustein, D. L. (2000). Reinvigorating the study of vocational exploration: A framework for research. "Journal of Vocational Behavior, 56", 380-404] for the first time in Hong Kong, and we also test…

The Costs of Today's Jobs: Job Characteristics and Organizational Supports as Antecedents of Negative Spillover

ERIC Educational Resources Information Center

Grotto, Angela R.; Lyness, Karen S.

2010-01-01

This study examined job characteristics and organizational supports as antecedents of negative work-to-nonwork spillover for 1178 U.S. employees. Based on hierarchical regression analyses of 2002 National Study of the Changing Workforce data and O*NET data, job demands (requirements to work at home beyond scheduled hours, job complexity, time and…

Examination of an Antecedent Communication Intervention to Reduce Tangibly Maintained Challenging Behavior: A Controlled Analog Analysis

ERIC Educational Resources Information Center

O'Reilly, Mark; Fragale, Christina; Gainey, Summer; Kang, Soyeon; Koch, Heather; Shubert, Jennifer; El Zein, Farah; Longino, Deanna; Chung, Moon; Xu, Ziwei; White, Pamela; Lang, Russell; Davis, Tonya; Rispoli, Mandy; Lancioni, Giulio; Didden, Robert; Healy, Olive; Kagohara, Deborah; van der Meer, Larah; Sigafoos, Jeff

2012-01-01

We examined the influence of an antecedent communication intervention on challenging behavior for three students with developmental disorders. Students were taught to request tangible items that were identified as reinforcers for challenging behavior in a prior functional analysis. Individual participant multielement and reversal designs were used…

Investigations in physical mechanism of the oxidative desulfurization process assisted simultaneously by phase transfer agent and ultrasound.

PubMed

Bhasarkar, Jaykumar B; Chakma, Sankar; Moholkar, Vijayanand S

2015-05-01

This paper attempts to discern the physical mechanism of the oxidative desulfurization process simultaneously assisted by ultrasound and phase transfer agent (PTA). With different experimental protocols, an attempt is made to deduce individual beneficial effects of PTA and ultrasound on the oxidative desulfurization system, and also the synergy between the effects of PTA and ultrasound. Effect of PTA is more marked for mechanically stirred system due to mass transfer limitations, while intense emulsification due to ultrasound helps overcome the mass transfer limitations and reduces the extent of enhancement of oxidation by PTA. Despite application of PTA and ultrasound, the intrinsic factors and properties of the reactants such as polarity (and hence partition coefficient) and diffusivity have a crucial effect on the extent of oxidation. The intrinsic reactivity of the oxidant also plays a vital role, as seen from the extent of oxidation achieved with performic acid and peracetic acid. The interfacial transport of oxidant in the form of oxidant-PTA complex reduces the undesired consumption of oxidant by the reducing species formed during transient cavitation in organic medium, which helps effective utilization of oxidant towards desulfurization. Copyright © 2014 Elsevier B.V. All rights reserved.

To Fake or Not to Fake: Antecedents to Interview Faking, Warning Instructions, and Its Impact on Applicant Reactions

PubMed Central

Law, Stephanie J.; Bourdage, Joshua; O’Neill, Thomas A.

2016-01-01

In the present study, we examined the antecedents and processes that impact job interviewees’ decisions to engage in deceptive impression management (i.e., interview faking). Willingness and capacity to engage in faking were found to be the processes underlying the decision to use deceptive impression management in the interview. We also examined a personality antecedent to this behavior, Honesty-Humility, which was negatively related to the use of deceptive impression management through increased willingness to engage in these behaviors. We also tested a possible intervention to reduce IM. In particular, we found that warnings against faking – specifically, an identification warning - reduced both the perceived capacity to engage in interview faking, and subsequent use of several faking behaviors. Moreover, this warning reduced faking without adversely impacting applicant reactions. PMID:27895609

Role Stress Revisited: Job Structuring Antecedents, Work Outcomes, and Moderating Effects of Locus of Control

ERIC Educational Resources Information Center

Conley, Sharon; You, Sukkyung

2014-01-01

A previous study examined role stress in relation to work outcomes; in this study, we added job structuring antecedents to a model of role stress and examined the moderating effects of locus of control. Structural equation modeling was used to assess the plausibility of our conceptual model, which specified hypothesized linkages among teachers'…

Caregiving Antecedents of Secure Base Script Knowledge: A Comparative Analysis of Young Adult Attachment Representations

ERIC Educational Resources Information Center

Steele, Ryan D.; Waters, Theodore E. A.; Bost, Kelly K.; Vaughn, Brian E.; Truitt, Warren; Waters, Harriet S.; Booth-LaForce, Cathryn; Roisman, Glenn I.

2014-01-01

Based on a subsample (N = 673) of the NICHD Study of Early Child Care and Youth Development (SECCYD) cohort, this article reports data from a follow-up assessment at age 18 years on the antecedents of "secure base script knowledge", as reflected in the ability to generate narratives in which attachment-related difficulties are…

Renal function, renal volume, and blood pressure in infants with antecedent of antenatal steroids.

PubMed

Carballo-Magdaleno, Deyanira; Guízar-Mendoza, Juan M; Amador-Licona, Norma; Domínguez-Domínguez, Víctor

2011-10-01

Steroids have been used for more than 20 years in preterm infants to induce pulmonary maturity; however, some long-term effects have been reported, such as insulin resistance and elevation of blood pressure. The aim of our study was to compare renal volume, renal function, and blood pressure in infants between 12-36 months of age with and without antecedent of antenatal steroid treatment. This was a cross-sectional study comprised of three groups of infants (n = 30, respectively): preterm infants with and without antecedent of receiving antenatal steroids, respectively, and full-term infants. Blood pressure, renal volume, glomerular filtration rate, and tubular function were measured. Blood pressure and cystatin C levels and glomerular filtration rate were higher in both groups of preterm infants than in the control group (p < 0.01). However, no difference in any of the tested variables between the steroid and non-steroid group of preterm infants. Renal volume was similar in preterm and control infants. Based on these results, we conclude that prematurity independent of antenatal steroid use is associated with higher cystatin C and blood pressure levels and a higher glomerular filtration rate in infants between 12-36 months of age.

Antecedent Characteristics of Online Cancer Information Seeking Among Rural Breast Cancer Patients: An Application of the Cognitive-Social Health Information Processing (C-SHIP) Model

PubMed Central

Shaw, Bret R.; DuBenske, Lori L.; Han, Jeong Yeob; Cofta-Woerpel, Ludmila; Bush, Nigel; Gustafson, David H.; McTavish, Fiona

2013-01-01

Little research has examined the antecedent characteristics of patients most likely to seek online cancer information. This study employs the Cognitive-Social Health Information Processing (C-SHIP) model as a framework to understand what psychosocial characteristics precede online cancer-related information seeking among rural breast cancer patients who often have fewer healthcare providers and limited local support services. Examining 144 patients who were provided free computer hardware, Internet access and training for how to use an Interactive Cancer Communication System, pre-test survey scores indicating patients’ psychosocial status were correlated with specific online cancer information seeking behaviors. Each of the factors specified by the C-SHIP model had significant relationships with online cancer information seeking behaviors with the strongest findings emerging for cancer-relevant encodings and self-construals, cancer-relevant beliefs and expectancies and cancer-relevant self-regulatory competencies and skills. Specifically, patients with more negative appraisals in these domains were more likely to seek out online cancer information. Additionally, antecedent variables associated with the C-SHIP model had more frequent relationships with experiential information as compared to didactic information. This study supports the applicability of the model to discern why people afflicted with cancer may seek online information to cope with their disease. PMID:18569368

Antecedent characteristics of online cancer information seeking among rural breast cancer patients: an application of the Cognitive-Social Health Information Processing (C-SHIP) model.

PubMed

Shaw, Bret R; Dubenske, Lori L; Han, Jeong Yeob; Cofta-Woerpel, Ludmila; Bush, Nigel; Gustafson, David H; McTavish, Fiona

2008-06-01

Little research has examined the antecedent characteristics of patients most likely to seek online cancer information. This study employs the Cognitive-Social Health Information Processing (C-SHIP) model as a framework to understand what psychosocial characteristics precede online cancer-related information seeking among rural breast cancer patients who often have fewer health care providers and limited local support services. Examining 144 patients who were provided free computer hardware, Internet access, and training for how to use an interactive cancer communication system, pretest survey scores indicating patients' psychosocial status were correlated with specific online cancer information seeking behaviors. Each of the factors specified by the C-SHIP model had significant relationships with online cancer information seeking behaviors, with the strongest findings emerging for cancer-relevant encodings and self-construals, cancer-relevant beliefs and expectancies, and cancer-relevant self-regulatory competencies and skills. Specifically, patients with more negative appraisals in these domains were more likely to seek out online cancer information. Additionally, antecedent variables associated with the C-SHIP model had more frequent relationships with experiential information as compared with to didactic information. This study supports the applicability of the model to discern why people afflicted with cancer may seek online information to cope with their disease.

Assessment-Based Antecedent Interventions Used in Natural Settings To Reduce Challenging Behavior: An Analysis of the Literature.

ERIC Educational Resources Information Center

Kern, Lee; Choutka, Claire Maher; Sokol, Natalie G.

2002-01-01

This article reviews research describing assessment-based antecedent interventions implemented in natural settings. Descriptive information is provided along a number of dimensions pertaining to participant characteristics (n=42), assessment utilized, and intervention attributes. Results indicate the most common interventions targeted aggression,…

Examining Antecedents and Consequences of Gambling Passion: The Case of Gambling on Horse Races

PubMed Central

Lee, Choong-Ki; Back, Ki-Joon; Hodgins, David C.

2013-01-01

Objective This study investigated the antecedents and consequences of gambling passion using structural equation modeling to examine relationships among gambling motivation, passion, emotion, and behavioral intentions in the horse racing industry. Methods An onsite survey was conducted with 447 patrons at a horseracing park in South Korea. A confirmatory factor analysis showed that the Gambling Passion Scale was valid and reliable, resulting in two sub-scales: obsessive passion (OP) and harmonious passion (HP). Results Study results indicated that extrinsic motivation influenced OP whereas intrinsic motivation significantly affected HP. Furthermore, OP was correlated with negative emotion, whereas HP was related to positive emotion. Gamblers' satisfaction was found to be influenced positively by positive emotion and negatively by negative emotion. Finally, satisfaction appeared to affect gamblers' behavioral intentions. Conclusion Study results echoed the notion of distinct and separate gambling motivations and passions among horse racing gamblers. Furthermore, results identified specific areas to which horse racing operators or policy makers should pay special attention in developing effective marketing strategies to promote responsible gambling. PMID:24474985

Antecedents and Consequences of Service Quality in a Higher Education Context: A Qualitative Research Approach

ERIC Educational Resources Information Center

Sultan, Parves; Wong, Ho Yin

2013-01-01

Purpose: The purpose of the paper is to report on the perception of students in regard to critical antecedents, dimensions and consequences of service quality with an aim to develop a theoretical model in the context of a university in Australia. Design/methodology/approach: This research used focus group discussions with 19 students who had been…

Measurement and prediction of propeller flow field on the PTA aircraft at speeds of up to Mach 0.85. [Propfan Test Assessment

NASA Technical Reports Server (NTRS)

Aljabri, Abdullah S.

1988-01-01

High speed subsonic transports powered by advanced propellers provide significant fuel savings compared to turbofan powered transports. Unfortunately, however, propfans must operate in aircraft-induced nonuniform flow fields which can lead to high blade cyclic stresses, vibration and noise. To optimize the design and installation of these advanced propellers, therefore, detailed knowledge of the complex flow field is required. As part of the NASA Propfan Test Assessment (PTA) program, a 1/9 scale semispan model of the Gulfstream II propfan test-bed aircraft was tested in the NASA-Lewis 8 x 6 supersonic wind tunnel to obtain propeller flow field data. Detailed radial and azimuthal surveys were made to obtain the total pressure in the flow and the three components of velocity. Data was acquired for Mach numbers ranging from 0.6 to 0.85. Analytical predictions were also made using a subsonic panel method, QUADPAN. Comparison of wind-tunnel measurements and analytical predictions show good agreement throughout the Mach range.

Behavioral and Emotional Antecedents and Consequences of Binge Eating in Bulimic and Binge Eating College Women.

ERIC Educational Resources Information Center

Katzman, Melanie A.; Wolchik, Sharlene A.

Recent studies have indicated that bulimia, characterized by binge eating followed by depressed mood and purging, is increasing. To investigate the behavioral and emotional antecedents and consequences of binge eating in women, 22 female college students (14 diagnosed bulimics, 8 binge eaters) completed self-monitoring forms for four binges.…

Perceived Deep-Level Dissimilarity: Personality Antecedents and Impact on Overall Job Attitude, Helping, Work Withdrawal, and Turnover

ERIC Educational Resources Information Center

Liao, Hui; Chuang, Aichia; Joshi, Aparna

2008-01-01

The current research extends three research areas in relational demography: considering deep-level dissimilarity in theory building, assessing dissimilarity perceptions directly in theory testing, and examining the antecedents of dissimilarity perceptions. The results, based on two field studies using diverse samples, demonstrate the effects of…

An Evaluation of the Relative Effectiveness of Function-Based Consequent and Antecedent Interventions in a Preschool Setting

ERIC Educational Resources Information Center

von Schulz, Jonna H.; Dufrene, Brad A.; LaBrot, Zachary C.; Tingstrom, Daniel H.; Olmi, D. Joe; Radley, Keith; Mitchell, Rachel; Maldonado, Aimee

2018-01-01

Although there is substantial functional behavioral assessment (FBA) literature suggesting that function-based interventions are effective for improving problem behavior, only a limited number of studies have examined the effectiveness of function-based antecedent versus consequent interventions. Additionally, although there has been a recent…

Improving Riverine Constituent Concentration and Flux Estimation by Accounting for Antecedent Discharge Conditions

NASA Astrophysics Data System (ADS)

Zhang, Q.; Ball, W. P.

2016-12-01

Regression-based approaches are often employed to estimate riverine constituent concentrations and fluxes based on typically sparse concentration observations. One such approach is the WRTDS ("Weighted Regressions on Time, Discharge, and Season") method, which has been shown to provide more accurate estimates than prior approaches. Centered on WRTDS, this work was aimed at developing improved models for constituent concentration and flux estimation by accounting for antecedent discharge conditions. Twelve modified models were developed and tested, each of which contains one additional variable to represent antecedent conditions. High-resolution ( daily) data at nine monitoring sites were used to evaluate the relative merits of the models for estimation of six constituents - chloride (Cl), nitrate-plus-nitrite (NOx), total Kjeldahl nitrogen (TKN), total phosphorus (TP), soluble reactive phosphorus (SRP), and suspended sediment (SS). For each site-constituent combination, 30 concentration subsets were generated from the original data through Monte Carlo sub-sampling and then used to evaluate model performance. For the sub-sampling, three sampling strategies were adopted: (A) 1 random sample each month (12/year), (B) 12 random monthly samples plus additional 8 random samples per year (20/year), and (C) 12 regular (non-storm) and 8 storm samples per year (20/year). The modified models show general improvement over the original model under all three sampling strategies. Major improvements were achieved for NOx by the long-term flow-anomaly model and for Cl by the ADF (average discounted flow) model and the short-term flow-anomaly model. Moderate improvements were achieved for SS, TP, and TKN by the ADF model. By contrast, no such achievement was achieved for SRP by any proposed model. In terms of sampling strategy, performance of all models was generally best using strategy C and worst using strategy A, and especially so for SS, TP, and SRP, confirming the value of

Antecedents of CIOs' Innovation Capability in Hospitals: Results of an Empirical Study.

PubMed

Liebe, Jan-David; Esdar, Moritz; Thye, Johannes; Hübner, Ursula

2017-01-01

CIOs' innovation capability is regarded as a precondition of successful HIT adoption in hospitals. Based on the data of 142 CIOs, this study aimed at identifying antecedents of perceived innovation capability. Eight features describing the status quo of the hospital IT management (e.g. use of IT governance frameworks), four features of the hospital structure (e.g. functional diversification) and four CIO characteristics (e.g. duration of employment) were tested as potential antecedents in an exploratory stepwise regression approach. Perceived innovation capability in its entirety and its three sub-dimensions served as criterion. The results show that CIOs' perceived innovation capability could be explained significantly (R²=0.34) and exclusively by facts that described the degree of formalism and structure of IT management in a hospital, e.g. intensive and formalised strategic communication, the existence of an IT strategy and the use of IT governance frameworks. Breaking down innovation capability into its constituents revealed that "innovative organisational culture" contributed to a large extent (R²=0.26) to the overall result sharing several predictors. In contrast, "intrapreneurial personality" (R²=0.11) and "openness towards users" (R²=0.18) could be predicted less well. These results hint at the relationship between working in a well-structured, formalised and strategy oriented environment and the overall feeling of being capable to promote IT innovation.

A simulation study of the recession coefficient for antecedent precipitation index. [soil moisture and water runoff estimation

NASA Technical Reports Server (NTRS)

Choudhury, B. J.; Blanchard, B. J.

1981-01-01

The antecedent precipitation index (API) is a useful indicator of soil moisture conditions for watershed runoff calculations and recent attempts to correlate this index with spaceborne microwave observations have been fairly successful. It is shown that the prognostic equation for soil moisture used in some of the atmospheric general circulation models together with Thornthwaite-Mather parameterization of actual evapotranspiration leads to API equations. The recession coefficient for API is found to depend on climatic factors through potential evapotranspiration and on soil texture through the field capacity and the permanent wilting point. Climatologial data for Wisconsin together with a recently developed model for global isolation are used to simulate the annual trend of the recession coefficient. Good quantitative agreement is shown with the observed trend at Fennimore and Colby watersheds in Wisconsin. It is suggested that API could be a unifying vocabulary for watershed and atmospheric general circulation modelars.

Distinct longitudinal patterns of absenteeism and their antecedents in full-time Australian employees.

PubMed

Magee, Christopher A; Caputi, Peter; Lee, Jeong Kyu

2016-01-01

This paper investigated distinct longitudinal trajectories of absenteeism over time, and underlying demographic, work, and health antecedents. Data from the Household, Income, and Labor Dynamics in Australia Survey were used; this is a panel study of a representative sample of Australian households. This paper focused on 2,481 full-time employees across a 5-year period. Information on annual sick leave and relevant sociodemographic, work, and health-related factors was collected through interviews and self-completed surveys. Growth mixture modeling indicated 4 distinct longitudinal patterns of absenteeism over time. The moderate absenteeism trajectory (34.8%) of the sample had 4-5 days of sick leave per year and was used as the reference group. The low absenteeism trajectory (33.5%) had 1-2 days of absenteeism per year, while the no absenteeism trajectory (23.6%) had very low rates of absenteeism (<1 day per year). Finally, a smaller trajectory accounting for 8.1% of the sample had high levels of absenteeism (>11 days per year). Compared with the moderate absenteeism trajectory, the high absenteeism trajectory was characterized by poor health; the no absenteeism and low absenteeism trajectories had better health but may also reflect processes relating to presenteeism. These results provide important insights into the nature of absenteeism in Australian employees, and suggest that different patterns of absenteeism over time could reflect a range of demographic, work, and health related factors. (c) 2016 APA, all rights reserved).

Testing a model of antecedents and consequences of defensive pessimism and self-handicapping in school physical education.

PubMed

Ntoumanis, Nikos; Taylor, Ian M; Standage, Martyn

2010-12-01

There has been very limited research on the use of self-worth protection strategies in the achievement context of school physical education (PE). Thus the aim of the present study was to examine some antecedents and consequences of defensive pessimism and self-handicapping. The sample comprised 534 British pupils (275 females, 259 males) recruited from two schools who responded to established questionnaires. Results of structural equation modelling analysis indicated that self-handicapping and defensive pessimism were positively predicted by fear of failure and negatively predicted by competence valuation. In addition, defensive pessimism was negatively predicted by physical self-concept. In turn, defensive pessimism negatively predicted enjoyment in PE and intentions to participate in future optional PE programmes. Self-handicapping did not predict enjoyment or intentions. Results from multi-sample structural equation modelling showed the specified model to be largely invariant across males and females. The findings indicate that although both strategies aim to protect one's self-worth, some of their antecedents and consequences in PE may differ.

Harris P. Mosher Award thesis. Peritonsillar abscess: incidence, current management practices, and a proposal for treatment guidelines.

PubMed

Herzon, F S

1995-08-01

Currently there is no agreement on the treatment of patients who develop a peritonsillar abscess (PTA). This lack of consensus results in highly variable and possibly expensive therapeutic regimens that may not provide optimum quality patient care at reasonable cost. The present study evaluates surgical, medical, diagnostic, and cost factors that affect the management of PTA based on the following: 1. a cohort study of 123 patients with PTA treated using needle aspiration as the initial surgical drainage; 2. a national survey of the PTA management practices of otolaryngologists; and 3. meta-analyses of various components of the treatment regimen for PTA. In the cohort study, patients diagnosed with PTA were treated by both otolaryngologists and emergency medicine specialists with needle aspiration as the primary surgical modality resulting in a 96% acute resolution rate for PTA. In the national survey, questionnaires were sent to 2000 randomly selected members of the American Academy of Otolaryngology-Head and Neck Surgery regarding their management of PTA. The return rate was 73%. Ninety-six percent of the physicians who returned survey forms treated an average of seven PTAs per year using either needle aspiration, incision and drainage, or abscess tonsillectomy to drain the abscess initially. The incidence of PTA in the United States and Puerto Rico among patients 5 to 59 years of age treated by survey practitioners is 30.1 per 100,000 person years, accounting for approximately 45,000 cases per year. Four meta-analyses were completed to quantify the success rate of needle aspiration in the treatment of PTA (94%), the recurrence rate of PTA (10% to 15%), the rate at which penicillin-resistant microorganisms are found in patients with PTA (0% to 56%), and the rate of prior oropharyngeal infections associated with PTA (11% to 56%). The recurrence rate for PTA in the United States is 10%, which is significantly different from the recurrence rate of 15% reported from

Accuracy of self-reported length of coma and posttraumatic amnesia in persons with medically verified traumatic brain injury.

PubMed

Sherer, Mark; Sander, Angelle M; Maestas, Kacey Little; Pastorek, Nicholas J; Nick, Todd G; Li, Jingyun

2015-04-01

To determine the accuracy of self-reported length of coma and posttraumatic amnesia (PTA) in persons with medically verified traumatic brain injury (TBI) and to investigate factors that affect self-report of length of coma and PTA duration. Prospective cohort study. Specialized rehabilitation center with inpatient and outpatient programs. Persons (N=242) with medically verified TBI who were identified from a registry of persons who had previously participated in TBI-related research. Not applicable. Self-reported length of coma and self-reported PTA duration. Review of medical records revealed that the mean medically documented length of coma and PTA duration was 6.9±12 and 19.2±22 days, respectively, and the mean self-reported length of coma and PTA duration was 16.7±22 and 106±194 days, respectively. The average discrepancy between self-report and medical record for length of coma and PTA duration was 8.2±21 and 64±176 days, respectively. Multivariable regression models revealed that time since injury, performance on cognitive tests, and medical record values were associated with self-reported values for both length of coma and PTA duration. In this investigation, persons with medically verified TBI showed poor accuracy in their self-report of length of coma and PTA duration. Discrepancies were large enough to affect injury severity classification. Caution should be exercised when considering self-report of length of coma and PTA duration. Copyright © 2015 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Internalizing Antecedents and Consequences of Binge-Eating Behaviors in a Community-Based, Urban Sample of African American Females

PubMed Central

Musci, Rashelle J.; Hart, Shelley R.; Ialongo, Nicholas

2015-01-01

The etiology of problem-eating behaviors is often overlooked in research as it typically shares many symptoms with other more common psychiatric illnesses. Binge-eating problems are at the forefront of the popular media because of the connection to obesity; therefore, increased knowledge of binge eating problems, particularly the internalizing antecedents and consequences will have implications in a multitude of domains, including prevention programs aimed at physical and mental health. The current study examines the antecedents of binge-eating behaviors by exploring how the growth of internalizing symptoms influences the proximal outcome of a binge-eating inventory in a longitudinal sample of African American girls. Additional consequences of binge-eating problems are also explored. This study focuses on binge-eating problems in order to present valuable information for prevention scientists who wish to develop target individuals at high risk for internalizing problems such as suicide. PMID:23873475

Brief Report: Use of an Antecedent Procedure to Decrease Night Awakening in an Infant--A Replication

ERIC Educational Resources Information Center

Cautilli, Joseph

2005-01-01

Borowski, Hunter, and Johnson (2001) found that an antecedent strategy such as white noise could decrease sleep awakenings for infants in the natural home environment. This study attempts to replicate the findings using an ABAB reversal design. A five month and one week old child, who had difficulty with waking an average of four times per night,…

Antecedents of New-Onset Major Depressive Disorder in Children and Adolescents at High Familial Risk.

PubMed

Rice, Frances; Sellers, Ruth; Hammerton, Gemma; Eyre, Olga; Bevan-Jones, Rhys; Thapar, Ajay K; Collishaw, Stephan; Harold, Gordon T; Thapar, Anita

2017-02-01

Early-onset major depressive disorder (MDD) is common in individuals at high familial risk of depression and is associated with poor long-term mental health, social, and educational outcomes. To examine the developmental pathways that lead to first-episode adolescent-onset MDD (incident cases) in those at high familial risk and to postulate a theoretically informed model that enables simultaneous testing of different pathways to incident adolescent-onset MDD composed of contributions from familial/genetic and social risk factors, as well as effects via specific clinical antecedents. This investigation was a 4-year longitudinal study (April 2007 to March 2011) among offspring of depressed parents in the general community. Analyses were conducted between September 1, 2015, and May 27, 2016. Participants were 337 families in whom the index parent (315 mothers and 22 fathers) had experienced at least 2 episodes of MDD (recruited through primary care) and among whom there was a biologically related child in the age range of 9 to 17 years living with the index parent (197 girls and 140 boys with a mean [SD] age of 12.4 [2.0] years) at baseline. Offspring with MDD before the study or at baseline (n = 27), offspring with an episode of MDD that had remitted by follow-up (n = 4), and offspring with missing baseline MDD data (n = 2) were excluded. Ninety-two percent (279 of 304) of families completed the follow-up. The primary outcome was new-onset offspring MDD, and the secondary outcome was the total DSM-IV MDD symptom score. On average, children and adolescents had a mean (SD) of 1.85 (1.74) (range, 0-8.5) DSM-IV symptoms of MDD at follow-up. Twenty (6 males and 14 females) had new-onset MDD, with a mean (SD) age at onset of 14.4 (2.0) years (range, 10-18 years). Irritability (β = 0.12, P = .03) and fear and/or anxiety (β = 0.38, P < .001) were significant independent clinical antecedents of new adolescent-onset MDD, but disruptive behavior (�

In flight measurement of steady and unsteady blade surface pressure of a single rotation large scale advanced prop-fan installed on the PTA aircraft

NASA Technical Reports Server (NTRS)

Parzych, D.; Boyd, L.; Meissner, W.; Wyrostek, A.

1991-01-01

An experiment was performed by Hamilton Standard, Division of United Technologies Corporation, under contract by LeRC, to measure the blade surface pressure of a large scale, 8 blade model prop-fan in flight. The test bed was the Gulfstream 2 Prop-Fan Test Assessment (PTA) aircraft. The objective of the test was to measure the steady and periodic blade surface pressure resulting from three different Prop-Fan air inflow angles at various takeoff and cruise conditions. The inflow angles were obtained by varying the nacelle tilt angles, which ranged from -3 to +2 degrees. A range of power loadings, tip speeds, and altitudes were tested at each nacelle tilt angle over the flight Mach number range of 0.30 to 0.80. Unsteady blade pressure data tabulated as Fourier coefficients for the first 35 harmonics of shaft rotational frequency and the steady (non-varying) pressure component are presented.

Middle Childhood Antecedents to Progressions in Male Adolescent Substance Use: An Ecological Analysis of Risk and Protection.

ERIC Educational Resources Information Center

Dishion, Thomas J.; Capaldi, Deborah M.; Yoerger, Karen

1999-01-01

This study examined antecedents to early patterned alcohol and tobacco use and marijuana experimentation between ages 11 and 16 for an at-risk male sample. Findings suggested that family, peer, and child characteristics were inextricably connected within an ecology of development. A structural equation prediction model suggested a higher order…

Use of an Antecedent Analysis and a Force Sensitive Platform to Compare Stereotyped Movements and Motor Tics

ERIC Educational Resources Information Center

Crosland, Kimberly A.; Zarcone, Jennifer R.; Schroeder, Stephen; Zarcane, Troy; Fowler, Stephen

2005-01-01

Stereotyped movements displayed by 6 participants and tics displayed by 6 children were evaluated using an antecedent behavioral analysis and a force sensitive platform. We found that tics occurred more often in an alone condition when compared to high preference toy and play conditions, whereas stereotyped movements were more variable across…

Antecedents and Outcomes of Level and Rates of Change in Perceived Control: The Moderating Role of Age

ERIC Educational Resources Information Center

Infurna, Frank J.; Okun, Morris A.

2015-01-01

Perceived control is interrelated with aging-related outcomes across adulthood and old age. Relatively little is known, however, about resources as antecedents of longitudinal change in perceived control and the role of perceived control as a buffer against mortality risk when these resources are low. We examined functional limitations, depressive…

Antecedents of hospital admission for deliberate self-harm from a 14-year follow-up study using data-linkage.

PubMed

Mitrou, Francis; Gaudie, Jennifer; Lawrence, David; Silburn, Sven R; Stanley, Fiona J; Zubrick, Stephen R

2010-10-18

A prior episode of deliberate self-harm (DSH) is one of the strongest predictors of future completed suicide. Identifying antecedents of DSH may inform strategies designed to reduce suicide rates. This study aimed to determine whether individual and socio-ecological factors collected in childhood and adolescence were associated with later hospitalisation for DSH. Longitudinal follow-up of a Western Australian population-wide random sample of 2,736 children aged 4-16 years, and their carers, from 1993 until 2007 using administrative record linkage. Children were aged between 18 and 31 years at end of follow-up. Proportional hazards regression was used to examine the relationship between child, parent, family, school and community factors measured in 1993, and subsequent hospitalisation for DSH. There were six factors measured in 1993 that increased a child's risk of future hospitalisation with DSH: female sex; primary carer being a smoker; being in a step/blended family; having more emotional or behavioural problems than other children; living in a family with inconsistent parenting style; and having a teenage mother. Factors found to be not significant included birth weight, combined carer income, carer's lifetime treatment for a mental health problem, and carer education. The persistence of carer smoking as an independent risk factor for later DSH, after adjusting for child, carer, family, school and community level socio-ecological factors, adds to the known risk domains for DSH, and invites further investigation into the underlying mechanisms of this relationship. This study has also confirmed the association of five previously known risk factors for DSH.

Exploring utilitarian and hedonic antecedents for adopting information from a recommendation agent and unplanned purchase behaviour

NASA Astrophysics Data System (ADS)

Huang, Li-Ting

2016-01-01

Research indicated that in order for properly utilizing recommendation agents (RAs), customers must rationally evaluate capability and suggestions of RAs during the interaction process. However, enjoying interactive processes and interface is also important. Methods for increasing user enjoyment of RAs are yet unknown. This study investigated the influences of utilitarian and hedonic factors on intention to adopt RAs suggestions and their antecedents. Involvement influences relative importance of utilitarian and hedonic factors. Contrary to common assumptions, customers may make unplanned purchases, rather than rational purchase. A field experiment with 2 × 2 × 2 factorial design reveals main findings. First, information diagnosticity and enjoyment enhance adoption intention simultaneously. Information diagnosticity is more important than enjoyment. Diagnosticity was determined by outcome similarity, and enjoyment was determined by both outcome similarity and atmospherics. The context of interacting with RAs is important. Outcome similarity even directly affects adoption intention. Second, highly involved users considered enjoyment and diagnosticity when forming adoption intentions, while users with low involvement only considered enjoyment. Third, information cascades altered the relationship between adoption intention and unplanned purchases. Most customers change selection after seeing ratings from other customers, even if they originally strongly want to adoption suggestion from RAs. Theoretical and managerial implications are proposed.

Trajectories of Physical Discipline: Early Childhood Antecedents and Developmental Outcomes

PubMed Central

Lansford, Jennifer E.; Criss, Michael M.; Dodge, Kenneth A.; Shaw, Daniel S.; Pettit, Gregory S.; Bates, John E.

2009-01-01

This study examined childhood antecedents and developmental outcomes associated with trajectories of mild and harsh parental physical discipline. Interview, questionnaire, and observational data were available from 499 children followed from age 5 to 16 and from 258 children in an independent sample followed from age 5 to 15. Analyses indicated distinct physical discipline trajectory groups that varied in frequency of physical discipline and rate of change. In both samples, family ecological disadvantage differentiated the trajectory groups; in the first sample, early child externalizing also differentiated the groups. Controlling for early childhood externalizing, the minimal/ceasing trajectory groups were associated with the lowest levels of subsequent adolescent antisocial behavior in both samples and with parent-adolescent positive relationship quality in the second sample. PMID:19765007

Trajectories of physical discipline: early childhood antecedents and developmental outcomes.

PubMed

Lansford, Jennifer E; Criss, Michael M; Dodge, Kenneth A; Shaw, Daniel S; Pettit, Gregory S; Bates, John E

2009-01-01

This study examined childhood antecedents and developmental outcomes associated with trajectories of mild and harsh parental physical discipline. Interview, questionnaire, and observational data were available from 499 children followed from ages 5 to 16 and from 258 children in an independent sample followed from ages 5 to 15. Analyses indicated distinct physical discipline trajectory groups that varied in frequency of physical discipline and rate of change. In both samples, family ecological disadvantage differentiated the trajectory groups; in the first sample, early child externalizing also differentiated the groups. Controlling for early childhood externalizing, the minimal/ceasing trajectory groups were associated with the lowest levels of subsequent adolescent antisocial behavior in both samples and with parent-adolescent positive relationship quality in the second sample.

Theoretical Antecedents of Standing at Work: An Experience Sampling Approach Using the Theory of Planned Behavior.

PubMed

Meyer, M Renée Umstattd; Wu, Cindy; Walsh, Shana M

2016-01-01

Time spent sitting has been associated with an increased risk of diabetes, cancer, obesity, and mental health impairments. However, 75% of Americans spend most of their days sitting, with work-sitting accounting for 63% of total daily sitting time. Little research examining theory-based antecedents of standing or sitting has been conducted. This lack of solid groundwork makes it difficult to design effective intervention strategies to decrease sitting behaviors. Using the Theory of Planned Behavior (TPB) as our theoretical lens to better understand factors related with beneficial standing behaviors already being practiced, we examined relationships between TPB constructs and time spent standing at work among "positive deviants" (those successful in behavior change). Experience sampling methodology (ESM), 4 times a day (midmorning, before lunch, afternoon, and before leaving work) for 5 consecutive workdays (Monday to Friday), was used to assess employees' standing time. TPB scales assessing attitude (α = 0.81-0.84), norms (α = 0.83), perceived behavioral control (α = 0.77), and intention (α = 0.78) were developed using recommended methods and collected once on the Friday before the ESM surveys started. ESM data are hierarchically nested, therefore we tested our hypotheses using multilevel structural equation modeling with Mplus. Hourly full-time university employees (n = 50; 70.6% female, 84.3% white, mean age = 44 (SD = 11), 88.2% in full-time staff positions) with sedentary occupation types (time at desk while working ≥6 hours/day) participated. A total of 871 daily surveys were completed. Only perceived behavioral control (β = 0.45, p < 0.05) was related with work-standing at the event-level (model fit: just fit); mediation through intention was not supported. This is the first study to examine theoretical antecedents of real-time work-standing in a naturalistic field setting among positive deviants. These relationships should be further examined, and

Improving riverine constituent concentration and flux estimation by accounting for antecedent discharge conditions

NASA Astrophysics Data System (ADS)

Zhang, Qian; Ball, William P.

2017-04-01

Regression-based approaches are often employed to estimate riverine constituent concentrations and fluxes based on typically sparse concentration observations. One such approach is the recently developed WRTDS ("Weighted Regressions on Time, Discharge, and Season") method, which has been shown to provide more accurate estimates than prior approaches in a wide range of applications. Centered on WRTDS, this work was aimed at developing improved models for constituent concentration and flux estimation by accounting for antecedent discharge conditions. Twelve modified models were developed and tested, each of which contains one additional flow variable to represent antecedent conditions and which can be directly derived from the daily discharge record. High-resolution (∼daily) data at nine diverse monitoring sites were used to evaluate the relative merits of the models for estimation of six constituents - chloride (Cl), nitrate-plus-nitrite (NOx), total Kjeldahl nitrogen (TKN), total phosphorus (TP), soluble reactive phosphorus (SRP), and suspended sediment (SS). For each site-constituent combination, 30 concentration subsets were generated from the original data through Monte Carlo subsampling and then used to evaluate model performance. For the subsampling, three sampling strategies were adopted: (A) 1 random sample each month (12/year), (B) 12 random monthly samples plus additional 8 random samples per year (20/year), and (C) flow-stratified sampling with 12 regular (non-storm) and 8 storm samples per year (20/year). Results reveal that estimation performance varies with both model choice and sampling strategy. In terms of model choice, the modified models show general improvement over the original model under all three sampling strategies. Major improvements were achieved for NOx by the long-term flow-anomaly model and for Cl by the ADF (average discounted flow) model and the short-term flow-anomaly model. Moderate improvements were achieved for SS, TP, and TKN

[Prevalence of target organ damage and factors associated with cardiovascular events in subjects with refractory hypertension].

PubMed

Armario, Pedro; Oliveras, Anna; Hernández Del Rey, Raquel; Poch, Esteban; Larrouse, María; Roca-Cusachs, Alex; de la Sierra, Alejandro

2009-06-27

To asses the prevalence of target organ damage (TOD) and factors associated with cardiovascular events in subjects with refractory hypertension. Cross-sectional study of 146 patients with clinical diagnosis of refractory hypertension. TOD was defined as the presence of microalbuminuria (MA), renal failure (RF), left ventricular hypertrophy (LVH) or left atrial enlargement (LAE). Cardiovascular events were defined as the antecedent of stroke, coronary heart disease, heart failure or peripheral arterial disease. 24-h ambulatory blood pressure monitoring was (ABPM) performed with a validated Spacelabs 90207. The prevalence of LVH was 62.3%, and LAE was observed in 27.7% of the subjects. The prevalence of RF was 28.1% and MA was found in 41,4%. An association between MA and LVH was observed. After adjusting by age, the urinary albumin excretion (UAE) correlated with clinical blood pressure (BP) and BP during 24-h ABPM, whereas LVMI correlated with ambulatory BP but not with clinical BP. The prevalence of previous cardiovascular events was 22% and in the multivariate regression analysis, UAE was the only independent factor associated with the antecedent of cardiovascular events. In subjects with refractory hypertension, the prevalence of TOD was high, and an association between heart and renal organ damage was observed. UAE was independently associated with the antecedent of cardiovascular disease.

Antecedents of Intrinsic Motivation, Metacognition and Their Effects on Students' Academic Performance in Fundamental Knowledge for Matriculation Courses

ERIC Educational Resources Information Center

Ibrahim, Mikail; Baharun, Hazleena; Harun, Haliza; Othman, Normah

2017-01-01

Purpose: This study examined the interrelationships between a set of antecedent academic intrinsic motivations and metacognitive strategy such as goal orientation, perceived value and religiosity in Fundamental Knowledge for Matriculation courses (FKM). It also investigated the relationship between intrinsic motivation and metacognitive strategy…

Scoping the common antecedents of job stress and job satisfaction for nurses (2000-2013) using the job demands-resources model of stress.

PubMed

McVicar, Andrew

2016-03-01

To identify core antecedents of job stress and job satisfaction, and to explore the potential of stress interventions to improve job satisfaction. Decreased job satisfaction for nurses is strongly associated with increased job stress. Stress management strategies might have the potential to improve job satisfaction. Comparative scoping review of studies (2000-2013) and location of their outcomes within the 'job demands-job resources' (JD-R) model of stress to identify commonalities and trends. Many, but not all, antecedents of both phenomena appeared consistently suggesting they are common mediators. Others were more variable but the appearance of 'emotional demands' as a common antecedent in later studies suggests an evolving influence of the changing work environment. The occurrence of 'shift work' as a common issue in later studies points to further implications for nurses' psychosocial well-being. Job satisfaction problems in nursing might be co-responsive to stress management intervention. Improving the buffering effectiveness of increased resilience and of prominent perceived job resource issues are urgently required. Participatory, psychosocial methods have the potential to raise job resources but will require high-level collaboration by stakeholders, and participative leadership and facilitation by managers to enable better decision-latitude, support for action planning and responsive changes. © 2015 John Wiley & Sons Ltd.

Mood- and restraint-based antecedents to binge episodes in bulimia nervosa: possible influences of the serotonin system.

PubMed

Steiger, Howard; Gauvin, Lise; Engelberg, Marla J; Ying Kin, N M K Ng; Israel, Mimi; Wonderlich, Stephen A; Richardson, Jodie

2005-11-01

In bulimic syndromes, binge episodes are thought to be caused by dietary restraint and negative moods. However, as central serotonin (5-hydroxytryptamine: 5-HT) mechanisms regulate appetite and mood, the 5-HT system could be implicated in diet- and mood-based binge antecedents. We used hand-held computers to obtain repeated "online" measurements of eating behaviors, moods, and self-concepts in 21 women with bulimic syndromes, and modeled 5-HT system activity with a measure of platelet [3H]paroxetine-binding density. Mood and self-concept ratings were found to be worse before binge episodes (than at other moments), and cognitive restraint was increased. After binges, mood and self-concept deteriorated further, and thoughts of dieting became more intense. Intriguingly, lower paroxetine-binding density predicted poorer mood and self-concept before a binge, larger post-binge decrements in mood and self-concept, and larger post-binge increases in dietary restraint. Paroxetine binding thus seemed to reflect processes that impacted upon mood-related antecedents to binge episodes, and consequences implicating mood and dietary restraint.

Antecedents and consequences of workplace aggression in the allied health context.

PubMed

Demir, Defne; Rodwell, John; Flower, Rebecca L

2014-01-01

Workplace aggression research has typically focused on groups in the health care industry considered to be high risk (e.g., nursing); however, aggression also occurs among other health care professional groups, such as those in allied health. This study aimed to investigate the antecedents and consequences of workplace aggression among allied health professionals. Allied health professionals working for an Australian health care organization were surveyed, with 134 (49%) responding. The largest group of allied health professionals surveyed were social workers (49%). Job demands, job control, and social support were linked to different types of aggression. Different sources of aggression were linked to various employee outcomes. The importance of considering stressors surrounding employee work conditions is highlighted.

Process antecedents of challenging, under-cover and readily-adopted innovations.

PubMed

Adams, Richard; Tranfield, David; Denyer, David

2013-01-01

The purpose of the study is to test the utility of a taxonomy of innovation based on perceived characteristics in the context of healthcare by exploring the extent to which discrete innovation types could be distinguished from each other in terms of process antecedents. A qualitative approach was adopted to explore the process antecedents of nine exemplar cases of "challenging", "under-cover" and "readily-adopted" healthcare innovations. Data were collected by semi-structured interview and from secondary sources, and content analysed according to a theoretically informed framework of innovation process. Cluster analysis was applied to determine whether innovation types could be distinguished on the basis of process characteristics. The findings provide moderate support for the proposition that innovations differentiated on the basis of the way they are perceived by potential users exhibit different process characteristics. Innovations exhibiting characteristics previously believed negatively to impact adoption may be successfully adopted but by a different configuration of processes than by innovations exhibiting a different set of characteristics. The findings must be treated with caution because the sample consists of self-selected cases of successful innovation and is limited by sample size. Nevertheless, the study sheds new light on important process differences in healthcare innovation. The paper offers a heuristic device to aid clinicians and managers to better understand the relatively novel task of promoting and managing innovation in healthcare. The paper advances the argument that there is under-exploited opportunity for cross-disciplinary organisational learning for innovation management in the NHS. If efficiency and quality improvement targets are to be met through a strategy of encouraging innovation, it may be advantageous for clinicians and managers to reflect on what this study found mostly to be absent from the processes of the innovations studied

Work-family conflict, part I: Antecedents of work-family conflict in national collegiate athletic association division I-A certified athletic trainers.

PubMed

Mazerolle, Stephanie M; Bruening, Jennifer E; Casa, Douglas J

2008-01-01

Work-family conflict (WFC) involves discord that arises when the demands of work interfere with the demands of family or home life. Long work hours, minimal control over work schedules, and time spent away from home are antecedents to WFC. To date, few authors have examined work-family conflict within the athletic training profession. To investigate the occurrence of WFC in certified athletic trainers (ATs) and to identify roots and factors leading to quality-of-life issues for ATs working in the National Collegiate Athletic Association Division I-A setting. Survey questionnaire and follow-up, in-depth, in-person interviews. Division I-A universities sponsoring football. A total of 587 ATs (324 men, 263 women) responded to the questionnaire. Twelve ATs (6 men, 6 women) participated in the qualitative portion: 2 head ATs, 4 assistant ATs, 4 graduate assistant ATs, and 2 AT program directors. Multiple regression analysis was performed to determine whether workload and travel predicted levels of WFC. Analyses of variance were calculated to investigate differences among the factors of sex, marital status, and family status. Interviews were transcribed verbatim and then analyzed using computer software as well as member checks and peer debriefing. The triangulation of the data collection and multiple sources of qualitative analysis were utilized to limit potential researcher prejudices. Regression analyses revealed that long work hours and travel directly contributed to WFC. In addition to long hours and travel, inflexible work schedules and staffing patterns were discussed by the interview participants as antecedents to WFC. Regardless of sex (P = .142), marital status (P = .687), family status (P = .055), or age of children (P = .633), WFC affected Division I-A ATs. No matter their marital or family status, ATs employed at the Division I-A level experienced difficulties balancing their work and home lives. Sources of conflict primarily stemmed from the consuming

Small is big: Interactive Trumps passive information in breaking information barriers and impacting behavioral antecedents

DOE PAGES

Beck, Ariane L.; Lakkaraju, Kiran; Rai, Varun; ...

2017-01-18

The wealth of information available on seemingly every topic creates a considerable challenge both for information providers trying to rise above the noise and discerning individuals trying to find relevant, trustworthy information. We approach this information problem by investigating how passive versus interactive information interventions can impact the antecedents of behavior change using the context of solar energy adoption, where persistent information gaps are known to reduce market potential. We use two experiments to investigate the impact of both passive and interactive approaches to information delivery on the antecedents (attitudes, subjective norms, and perceived behavioral control in the Theory ofmore » Planned Behavior) of intentions and behavior, as well as their effect on intentions and behavior directly. The passive information randomized control trial delivered via Amazon Mechanical Turk tests the effectiveness of delivering the same content in a single message versus multiple shorter messages. The interactive information delivery uses an online (mobile and PC) trivia-style gamification platform. Both experiments use the same content and are carried out over a two-week time period. Lastly, our findings suggest that interactive, gamified information has greater impact than passive information, and that shorter multiple messages of passive information are more effective than a single passive message.« less

Small is big: Interactive Trumps passive information in breaking information barriers and impacting behavioral antecedents

DOE Office of Scientific and Technical Information (OSTI.GOV)

Beck, Ariane L.; Lakkaraju, Kiran; Rai, Varun

The wealth of information available on seemingly every topic creates a considerable challenge both for information providers trying to rise above the noise and discerning individuals trying to find relevant, trustworthy information. We approach this information problem by investigating how passive versus interactive information interventions can impact the antecedents of behavior change using the context of solar energy adoption, where persistent information gaps are known to reduce market potential. We use two experiments to investigate the impact of both passive and interactive approaches to information delivery on the antecedents (attitudes, subjective norms, and perceived behavioral control in the Theory ofmore » Planned Behavior) of intentions and behavior, as well as their effect on intentions and behavior directly. The passive information randomized control trial delivered via Amazon Mechanical Turk tests the effectiveness of delivering the same content in a single message versus multiple shorter messages. The interactive information delivery uses an online (mobile and PC) trivia-style gamification platform. Both experiments use the same content and are carried out over a two-week time period. Lastly, our findings suggest that interactive, gamified information has greater impact than passive information, and that shorter multiple messages of passive information are more effective than a single passive message.« less

Small Is Big: Interactive Trumps Passive Information in Breaking Information Barriers and Impacting Behavioral Antecedents.

PubMed

Beck, Ariane L; Lakkaraju, Kiran; Rai, Varun

2017-01-01

The wealth of information available on seemingly every topic creates a considerable challenge both for information providers trying to rise above the noise and discerning individuals trying to find relevant, trustworthy information. We approach this information problem by investigating how passive versus interactive information interventions can impact the antecedents of behavior change using the context of solar energy adoption, where persistent information gaps are known to reduce market potential. We use two experiments to investigate the impact of both passive and interactive approaches to information delivery on the antecedents (attitudes, subjective norms, and perceived behavioral control in the Theory of Planned Behavior) of intentions and behavior, as well as their effect on intentions and behavior directly. The passive information randomized control trial delivered via Amazon Mechanical Turk tests the effectiveness of delivering the same content in a single message versus multiple shorter messages. The interactive information delivery uses an online (mobile and PC) trivia-style gamification platform. Both experiments use the same content and are carried out over a two-week time period. Our findings suggest that interactive, gamified information has greater impact than passive information, and that shorter multiple messages of passive information are more effective than a single passive message.

Small Is Big: Interactive Trumps Passive Information in Breaking Information Barriers and Impacting Behavioral Antecedents

PubMed Central

2017-01-01

The wealth of information available on seemingly every topic creates a considerable challenge both for information providers trying to rise above the noise and discerning individuals trying to find relevant, trustworthy information. We approach this information problem by investigating how passive versus interactive information interventions can impact the antecedents of behavior change using the context of solar energy adoption, where persistent information gaps are known to reduce market potential. We use two experiments to investigate the impact of both passive and interactive approaches to information delivery on the antecedents (attitudes, subjective norms, and perceived behavioral control in the Theory of Planned Behavior) of intentions and behavior, as well as their effect on intentions and behavior directly. The passive information randomized control trial delivered via Amazon Mechanical Turk tests the effectiveness of delivering the same content in a single message versus multiple shorter messages. The interactive information delivery uses an online (mobile and PC) trivia-style gamification platform. Both experiments use the same content and are carried out over a two-week time period. Our findings suggest that interactive, gamified information has greater impact than passive information, and that shorter multiple messages of passive information are more effective than a single passive message. PMID:28099478

Evaluating the efficacy of distributed detention structures to reduce downstream flooding under variable rainfall, antecedent soil, and structural storage conditions

NASA Astrophysics Data System (ADS)

Thomas, Nicholas W.; Arenas Amado, Antonio; Schilling, Keith E.; Weber, Larry J.

2016-10-01

This research systematically analyzed the influence of antecedent soil wetness, rainfall depth, and the subsequent impact on peak flows in a 45 km2 watershed. Peak flows increased with increasing antecedent wetness and rainfall depth, with the highest peak flows occurring under intense precipitation on wet soils. Flood mitigation structures were included and investigated under full and empty initial storage conditions. Peak flows were reduced at the outlet of the watershed by 3-17%. The highest peak flow reductions occurred in scenarios with dry soil, empty project storage, and low rainfall depths. These analyses showed that with increased rainfall depth, antecedent moisture conditions became increasingly less impactful. Scaling invariance of peak discharges were shown to hold true within this basin and were fit through ordinary least squares regression for each design scenario. Scale-invariance relationships were extrapolated beyond the outlet of the analyzed basin to the point of intersection of with and without structure scenarios. In each scenario extrapolated peak discharge benefits depreciated at a drainage area of approximately 100 km2. The associated drainage area translated to roughly 2 km downstream of the Beaver Creek watershed outlet. This work provides an example of internal watershed benefits of structural flood mitigation efforts, and the impact the may exert outside of the basin. Additionally, the influence of 1.8 million in flood reduction tools was not sufficient to routinely address downstream flood concerns, shedding light on the additional investment required to alter peak flows in large basins.

Influencing Antecedents of Adolescent Risk-Taking Behaviour in Elementary School: Results of a 4-Year Quasi-Experimental Controlled Trial

ERIC Educational Resources Information Center

Maruska, K.; Morgenstern, M.; Isensee, B.; Hanewinkel, R.

2010-01-01

Effects of the life skills programme "Eigenstandig werden" (Becoming independent) on life skills and on identified antecedents of adolescent health risk behaviour, childhood internalizing and externalizing behaviour were tested in an elementary school setting. A quasi-experimental controlled trial with five repeated measures was…

Early Antecedents of Social Competence in Elementary School of Later Peer Reputation and Sociometric Status in Dutch Adolescents.

ERIC Educational Resources Information Center

Scholte, Ron H. J.; Haselager, Gerbert J. T.; van Aken, Marcel A. G.; van Lieshout, Cornelis F. M.

Noting that a child's peer competence and sociometric status not only are important indices of the child's current social functioning, but may also predict adolescent adaptation, this study examined the antecedents in peer competence and sociometric status in early and late elementary school years of five peer reputation dimensions. These five…

Antecedents of Attention-Deficit/Hyperactivity Disorder symptoms in children born extremely preterm

PubMed Central

Johnson, Samantha; Kochhar, Puja; Hennessy, Enid; Marlow, Neil; Wolke, Dieter; Hollis, Chris

2016-01-01

Objective To investigate antecedents of Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms in children born extremely preterm (EP; <26 weeks gestation). Method The EPICure Study recruited all babies born EP in the UK and Ireland in March-December 1995. Neurodevelopmental outcomes were assessed at 2.5 (n=283; 90%), 6 (n=160; 78%) and 11 (n=219; 71%) years of age. Parents and teachers completed the Du Paul Rating Scale-IV to assess inattention and hyperactivity/impulsivity symptoms at 11 years. Regression analyses were used to explore the association of neonatal, neurodevelopmental and behavioral outcomes to 6 years with ADHD symptoms at 11 years. Results EP children had significantly more inattention (mean difference 1.2 SD; 95% CI 0.9, 1.5) and hyperactivity/impulsivity (0.5 SD; 0.2, 0.7) than controls, with a significantly greater effect size for inattention than hyperactivity/impulsivity. Significant independent predictors of inattention at 11 years included smaller head circumference, lower IQ and pervasive peer relationship problems at 6 years, and motor development at 2.5 years. In contrast, significant independent predictors of hyperactivity/impulsivity included lower IQ, pervasive conduct problems and ADHD symptoms at 6 years, externalizing problems at 2.5 years and non-white maternal ethnicity. Conclusions EP children are at increased risk for ADHD symptoms, predominantly inattention, for which the antecedents differ by symptom domain. Attention deficits following EP birth were associated with poor brain growth and neurological function. Cognitive and behavioral assessments in early and middle childhood to identify neurodevelopmental and peer relationship problems may be beneficial for identifying EP children at risk for inattention. PMID:27096570

Antecedent topography and morphological controls on sediment accumulation and slope stability of the U.S. Atlantic margin

NASA Astrophysics Data System (ADS)

Hill, J. C.; Brothers, D. S.; Ten Brink, U. S.; Andrews, B. D.

2017-12-01

The U.S. Atlantic margin encompasses a wide variety of slope failure processes, ranging from small canyon-confined failures on the upper slope to large, open slope landslides originating in deeper water. Here we used a suite of high-resolution multibeam bathymetry and detailed multichannel seismic data coverage to investigate the relationship between modern seafloor morphology, pre-existing stratigraphy and sediment accumulation patterns. We suggest that a combination of sediment supply and antecedent margin physiography, whereby variations in margin evolution during the Miocene have influenced the modern seafloor morphology, controls both the location of slope sediment accumulation and the style of slope failure. Oversteepened margins with angular shelf breaks and steep upper slopes, referred to as oblique margins, are characterized by downslope mass transport and densely-spaced canyon formation. These margins are most likely the locus of canyon-confined failures and smaller lower slope fan-apron failures (e.g., much of the Mid-Atlantic). Sigmoidal margins with prograded slopes, a rounded shelf edge, and a low gradient slope morphology can support significant sediment accumulation across a broad area, with limited canyon development. These margins are often associated with high sediment supply and are prone to large, upper slope slab-style failures (e.g., the Hudson Apron, southwestern New England, the Currituck and Cape Fear Slide complexes). Areas with morphologies in between these two end members are characterized by limited shelf-edge accommodation space and large-scale lower slope accumulation and onlap, representing transitional stages of equilibrium slope adjustment. Large failures along these intermediate-type margins tend to develop lower on the slope where thick wedges of onlapping sediment are found (e.g., around Washington Canyon, Cape Lookout and southeastern New England). As antecedent topography and sediment loading appear to play an important role

Hepatoprotective effects of the polysaccharide isolated from Tarphochlamys affinis (Acanthaceae) against CCl4-induced hepatic injury.

PubMed

Lin, Xing; Liu, Xi; Huang, Quanfang; Zhang, Shijun; Zheng, Li; Wei, Ling; He, Min; Jiao, Yang; Huang, Jianchun; Fu, Shujie; Chen, Zhaoni; Li, Yongwen; Zhuo, Lang; Huang, Renbin

2012-01-01

This study was designed to investigate the protective effects of the polysaccharide isolated from Tarphochlamys affinis (PTA) against CCl4-induced hepatotoxicity in rats. Liver injury was induced in rats by the administration of CCl4 twice a week for 2 weeks. During the experiment, the model group received CCl4 only; the treatment groups received various drugs plus CCl4, whereas the normal control group received an equal volume of saline. Compared with the CCl4 group, PTA significantly decreased the activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALP) in the serum and increased the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx) in the liver. Moreover, the content of hepatic malondialdehyde (MDA) was reduced. Histological findings also confirmed the anti-hepatotoxic characterisation. In addition, PTA significantly inhibited the proinflammatory mediators, such as prostaglandin E2 (PGE2), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) and myeloperoxidase (MPO). Further investigation showed that the inhibitory effect of PTA on the pro-inflammatory cytokines was associated with the down-regulation of nuclear factor-kappa B (NF-κB). In brief, our results show that the protective effect of PTA against CCl4-induced hepatic injury may rely on its ability to reduce oxidative stress and suppress inflammatory responses.

Mobile computing acceptance factors in the healthcare industry: a structural equation model.

PubMed

Wu, Jen-Her; Wang, Shu-Ching; Lin, Li-Min

2007-01-01

This paper presents a revised technology acceptance model to examine what determines mobile healthcare systems (MHS) acceptance by healthcare professionals. Conformation factor analysis was performed to test the reliability and validity of the measurement model. The structural equation modeling technique was used to evaluate the causal model. The results indicated that compatibility, perceived usefulness and perceived ease of use significantly affected healthcare professional behavioral intent. MHS self-efficacy had strong indirect impact on healthcare professional behavioral intent through the mediators of perceived usefulness and perceived ease of use. Yet, the hypotheses for technical support and training effects on the perceived usefulness and perceived ease of use were not supported. This paper provides initial insights into factors that are likely to be significant antecedents of planning and implementing mobile healthcare to enhance professionals' MHS acceptance. The proposed model variables explained 70% of the variance in behavioral intention to use MHS; further study is needed to explore extra significant antecedents of new IT/IS acceptance for mobile healthcare. Such as privacy and security issue, system and information quality, limitations of mobile devices; the above may be other interesting factors for implementing mobile healthcare and could be conducted by qualitative research.

Drivers' social-work relationships as antecedents of unsafe driving: A social network perspective.

PubMed

Arizon Peretz, Renana; Luria, Gil

2017-09-01

In order to reduce road accidents rates, studies around the globe have attempted to shed light on the antecedents for unsafe road behaviors. The aim of the current research is to contribute to this literature by offering a new organizational antecedent of driver's unsafe behavior: The driver's relationships with his or her peers, as reflected in three types of social networks: negative relationships network, friendship networks and advice networks (safety consulting). We hypothesized that a driver's position in negative relationship networks, friendship networks, and advice networks will predict unsafe driving. Additionally, we hypothesized the existence of mutual influences among the driver's positions in these various networks, and suggested that the driver's positions interact to predict unsafe driving behaviors. The research included 83 professional drivers from four different organizations. Driving behavior data were gathered via the IVDR (In-Vehicle Data Recorder) system, installed in every truck to measure and record the driver's behavior. The findings indicated that the drivers' position in the team networks predicts safe driving behavior: Centrality in negative relationship networks is positively related to unsafe driving, and centrality in friendship networks is negatively related to unsafe driving, while centrality in advice networks is not related to unsafe driving. Furthermore, we found an interaction effect between negative network centrality and centrality in friendship networks. The relation between negative networks and unsafe behavior is weaker when high levels of friendship network centrality exist. The implications will be presented in the Discussion section. Copyright © 2017 Elsevier Ltd. All rights reserved.

Investigating the strategic antecedents of agility in humanitarian logistics.

PubMed

L'Hermitte, Cécile; Brooks, Benjamin; Bowles, Marcus; Tatham, Peter H

2017-10-01

This study investigates the strategic antecedents of operational agility in humanitarian logistics. It began by identifying the particular actions to be taken at the strategic level of a humanitarian organisation to support field-level agility. Next, quantitative data (n=59) were collected on four strategic-level capabilities (being purposeful, action-focused, collaborative, and learning-oriented) and on operational agility (field responsiveness and flexibility). Using a quantitative analysis, the study tested the relationship between organisational capacity building and operational agility and found that the four strategic-level capabilities are fundamental building blocks of agility. Collectively they account for 52 per cent of the ability of humanitarian logisticians to deal with ongoing changes and disruptions in the field. This study emphasises the need for researchers and practitioners to embrace a broader perspective of agility in humanitarian logistics. In addition, it highlights the inherently strategic nature of agility, the development of which involves focusing simultaneously on multiple drivers. © 2017 The Author(s). Disasters © Overseas Development Institute, 2017.

Examining the "Neglected Side of the Work-Family Interface": Antecedents of Positive and Negative Family-to-Work Spillover

ERIC Educational Resources Information Center

Stevens, Daphne Pedersen; Minnotte, Krista Lynn; Mannon, Susan E.; Kiger, Gary

2007-01-01

This study extends previous research by Dilworth by examining antecedents of both positive and negative family-to-work spillover--a long-neglected area of research. It also uses an extended definition of domestic labor that includes emotion work and status enhancement. Using data from a random sample of dual-earner couples, the study found gender…

Does antecedent precipitation play a role for floods in (small) Swiss catchments?

NASA Astrophysics Data System (ADS)

Froidevaux, Paul; Schwanbeck, Jan; Weingartner, Rolf; Chevalier, Clément; Romppainen-Martius, Olivia

2014-05-01

River flooding is one of the most devastating natural hazards worldwide. In Switzerland, like in many other regions, the building of flood protection infrastructures is complicated by difficulties in assessing flood risk due to: - The large year-to-year variability in flood losses. The variations amount to several orders of magnitude (see for ex. Hilker et al., 2009). - The non-stationarity of the flood risk at longer time scales. A pronounced decadal variability in flood risk has been observed by Schmocker-Fackel and Naef (2010) and Köplin et al. (2013) show that climate change will induce diverse and complex regional changes in flood risk. A better understanding of flood processes is therefore required in order to better predict changes in flood frequency. It has been hypothesized that flood frequency variations are linked to changes in the atmospheric circulation. Consequently, the whole mechanism chain starting from atmospheric circulation patterns triggering severe precipitation weather and ending with extreme river discharge must be considered. In a step in that direction we characterize precipitation events that triggered observed annual maximum discharges at 120 discharge stations during the last 53 years in Switzerland. The precipitation dataset is a temporally-homogeneous complex interpolation of daily rain gauge data on a 1 by 1 km grid covering the Swiss territory (MeteoSwiss, 2011). We test the relationship between different catchment-averaged precipitation indices and flood occurrence. We explicitly separate antecedent and event-associated precipitation. The preliminary results show that antecedent precipitation (weekly to monthly sums ending 3 days before the event) are no significant flood predictors for most of the catchments. On the other hand, a very strong signal is found for the 1-3 days precipitation sums. Lessons for flood modeling in Swiss catchments is that a strong effort is required in order to represent the flood-associated weather

Members of the LATERAL ORGAN BOUNDARIES DOMAIN Transcription Factor Family Are Involved in the Regulation of Secondary Growth in Populus[W

PubMed Central

Yordanov, Yordan S.; Regan, Sharon; Busov, Victor

2010-01-01

Regulation of secondary (woody) growth is of substantial economic and environmental interest but is poorly understood. We identified and subsequently characterized an activation-tagged poplar (Populus tremula × Populus alba) mutant with enhanced woody growth and changes in bark texture caused primarily by increased secondary phloem production. Molecular characterization of the mutation through positioning of the tag and retransformation experiments shows that the phenotype is conditioned by activation of an uncharacterized gene that encodes a novel member of the LATERAL ORGAN BOUNDARIES DOMAIN (LBD) family of transcription factors. Homology analysis showed highest similarity to an uncharacterized LBD1 gene from Arabidopsis thaliana, and we consequently named it Populus tremula × Populus alba (Pta) LBD1. Dominant-negative suppression of Pta LBD1 via translational fusion with the repressor SRDX domain caused decreased diameter growth and suppressed and highly irregular phloem development. In wild-type plants, LBD1 was most highly expressed in the phloem and cambial zone. Two key Class I KNOTTED1-like homeobox genes that promote meristem identity in the cambium were downregulated, while an Altered Phloem Development gene that is known to promote phloem differentiation was upregulated in the mutant. A set of four LBD genes, including the LBD1 gene, was predominantly expressed in wood-forming tissues, suggesting a broader regulatory role of these transcription factors during secondary woody growth in poplar. PMID:21097711

Antecedent wetness conditions based on ERS scatterometer data

NASA Astrophysics Data System (ADS)

Brocca, L.; Melone, F.; Moramarco, T.; Morbidelli, R.

2009-01-01

SummarySoil moisture is widely recognized as a key parameter in environmental processes mainly for the role of rainfall partitioning into runoff and infiltration. Therefore, for storm rainfall-runoff modeling the estimation of the antecedent wetness conditions ( AWC) is one of the most important aspect. In this context, this study investigates the potential of scatterometer on board of the ERS satellites for the assessment of wetness conditions in three Tiber sub-catchments (Central Italy), of which one includes an experimental area for soil moisture monitoring. The satellite soil moisture data are taken from the ERS/METOP soil moisture archive. First, the scatterometer-derived soil wetness index ( SWI) data are compared with two on-site soil moisture data sets acquired by different methodologies on areas of different extension ranging from 0.01 km 2 to ˜60 km 2. Moreover, the reliability of SWI to estimate the AWC at a catchment scale is investigated considering the relationship between SWI and the soil potential maximum retention parameter, S, of the Soil Conservation Service-Curve Number (SCS-CN) method for abstraction. Several flood events occurred from 1992 to 2005 are selected for this purpose. Specifically, the performance of the SWI for S estimation is compared with two antecedent precipitation indices ( API) and one base flow index ( BFI). The S values obtained through the observed direct runoff volume and rainfall depth are used as benchmark. Results show the great reliability of the SWI for the estimation of wetness conditions both at the plot and catchment scale despite the complex orography of the investigated areas. As far as the comparison with on site soil moisture data set is concerned, the SWI is found quite reliable in representing the soil moisture at layer depth of 15 cm, with a mean correlation coefficient equal to 0.81. The characteristic time length parameter variations, as expected, is depended on soil type, with values in accordance with

The role of support antecedents in nurses' intentions to quit: the case of Australia.

PubMed

Shacklock, Kate; Brunetto, Yvonne; Teo, Stephen; Farr-Wharton, Rod

2014-04-01

The study used Social Exchange Theory as a lens to examine associations between nurses' support antecedents (supervisor-nurse relationships and perceived organizational support) and their job attitudes (job satisfaction, organizational commitment and engagement). Similar to many other westernized countries, there is a shortage of nurses working as nurses in Australia. The attrition of nurses from the workplace continues to be a challenge for many countries, with resultant calls for improved retention rates. The design employed in this study was a Survey. A self-report survey of 1600 nurses employed in five private sector hospitals throughout Australia was completed during 2010-2011, resulting in 510 completed surveys. A mediation path model was developed to test the hypotheses and results of Partial Least Squares analysis showed that both support antecedents (supervisor-nurse relationships and perceived organizational support) positively led to engagement and job satisfaction. Subsequently, nurses more satisfied with their jobs were also more committed to their organizations, ultimately leading to lower intentions to quit. In addition, job satisfaction was found to mediate the relationships between organizational commitment and turnover intentions, plus between supervisor-subordinate relationships and turnover intentions. In the context of a shortage of nurses and higher than average turnover rates, the findings suggest that it is important to improve nurses' job satisfaction and organizational commitment to improve retention. However, the findings also suggest that workplace relationships and organizational management are currently far from ideal. © 2013 John Wiley & Sons Ltd.

Creative Self-Efficacy: The Influence of Affective States and Social Persuasion as Antecedents and Imagination and Divergent Thinking as Consequences

ERIC Educational Resources Information Center

Puente-Díaz, Rogelio; Cavazos-Arroyo, Judith

2017-01-01

Two studies examined the influence of encouragement for creativity, curiosity, harmonious passion, and autonomy support as antecedents of creative self-efficacy and imagination and divergent thinking as consequences. College students completed a battery of questionnaires. Structural equation modeling treating the variables as latent and not…

The trajectories of overall disability in the first 5 years after moderate and severe traumatic brain injury.

PubMed

Forslund, Marit V; Roe, Cecilie; Perrin, Paul B; Sigurdardottir, Solrun; Lu, Juan; Berntsen, Svein; Andelic, Nada

2017-01-01

To assess longitudinal trajectories of overall disability after moderate-to-severe traumatic brain injury (TBI) and to examine whether those trajectories could be predicted by socio-demographic and injury characteristics. Demographics and injury characteristics of 105 individuals with moderate-to-severe TBI were extracted from medical records. At the 1-, 2-, and 5-year follow-ups, TBI-related disability was assessed by the GOSE. A hierarchical linear model (HLM) was used to examine functional outcomes up to 5 years following injury and whether those outcomes could be predicted by: time, gender, age, relationship, education, employment pre-injury, occupation, GCS, cause of injury, length of post-traumatic amnesia (PTA), CT findings and injury severity score, as well as the interactions between each of these predictors and time. Higher GOSE trajectories (lower disability) were predicted by younger age at injury and shorter PTA, as well as by the interaction terms of time*PTA and time*employment. Those who had been employed at injury decreased in disability over time, while those who had been unemployed increased in disability. The study results support the view that individual factors generally outweigh injury-related factors as predictors of disability after TBI, except for PTA.

Client Factors as Predictors of Restraint and Seclusion in People with Intellectual Disability

ERIC Educational Resources Information Center

Scheirs, Jan G. M.; Blok, Jan B.; Tolhoek, Myrte A.; El Aouat, Fadoua; Glimmerveen, Johanna C.

2012-01-01

Background: To gain more insight into the antecedent factors of restraint in institutionalised people with intellectual disability (ID), the role played by several demographic and psychological client variables was investigated. Methods: The data of 475 people (age range 12-95 years) who were residents in a Dutch institution for people with ID…

Antecedent Synoptic Environments Conducive to North American Polar/Subtropical Jet Superpositions

NASA Astrophysics Data System (ADS)

Winters, A. C.; Keyser, D.; Bosart, L. F.

2017-12-01

The atmosphere often exhibits a three-step pole-to-equator tropopause structure, with each break in the tropopause associated with a jet stream. The polar jet stream (PJ) typically resides in the break between the polar and subtropical tropopause and is positioned atop the strongly baroclinic, tropospheric-deep polar front around 50°N. The subtropical jet stream (STJ) resides in the break between the subtropical and the tropical tropopause and is situated on the poleward edge of the Hadley cell around 30°N. On occasion, the latitudinal separation between the PJ and the STJ can vanish, resulting in a vertical jet superposition. Prior case study work indicates that jet superpositions are often attended by a vigorous transverse vertical circulation that can directly impact the production of extreme weather over North America. Furthermore, this work suggests that there is considerable variability among antecedent environments conducive to the production of jet superpositions. These considerations motivate a comprehensive study to examine the synoptic-dynamic mechanisms that operate within the double-jet environment to produce North American jet superpositions. This study focuses on the identification of North American jet superposition events in the CFSR dataset during November-March 1979-2010. Superposition events will be classified into three characteristic types: "Polar Dominant" events will consist of events during which only the PJ is characterized by a substantial excursion from its climatological latitude band; "Subtropical Dominant" events will consist of events during which only the STJ is characterized by a substantial excursion from its climatological latitude band; and "Hybrid" events will consist of those events characterized by an excursion of both the PJ and STJ from their climatological latitude bands. Following their classification, frequency distributions of jet superpositions will be constructed to highlight the geographical locations most often

The antecedents and prevention of unwanted pregnancy.

PubMed

Gerrard, M; McCann, L; Geis, B D

1983-01-01

Much of the research on the antecedents and consequences of birth control has focused on teenagers and members of racial minority groups, but the trends in contraceptive use indicate that the danger of unwanted pregnancy exists for most women throughout the childbearing ages of 14-45, for white and middle class women as well as minority women and women from the lower socioeconomic status levels. There are basically 4 choices open to the unmarried woman who conceives: giving the child up for adoption, keeping the child without marrying, and marriage. There are little data on the mental health consequences of giving a child up for adoption, but there is no question that the experience at the very least upsetting and may cause longterm trauma. Induced abortion is less traumatic, both physically and psychologically, than carrying a pregnancy to term, however, many women suffer from longterm depression following the procedure. The social, economic, and psychological consequences of single motherhood are clearly documented for both teenagers and older women. The most frequently cited problems are delayed or truncated emotional and social activities, unemployment, and role overload resulting from the responsibility of caring for a child without the support of a spouse. The pregnant teenager who does marry has a 50% probability of divorce within 4 years, and even if the couple does stay married they suffer some adverse consequences. In 1978 Zelnick and Kantner estimated that it would be possible to reduce the number of premarital pregnancies and presumably their psychological and economic consequences by at least 40% if all sexually active young women were to use a contraceptive method and to use it consistently. If the majority of all sexually active women were to use the most reliable methods of contraception, the unwanted pregnancy rate would be reduced even more markedly. Yet, reliable contraceptive behavior involves a complex sequence of psychological and behavioral

Academic emotions from a social-cognitive perspective: antecedents and domain specificity of students' affect in the context of Latin instruction.

PubMed

Goetz, Thomas; Pekrun, Reinhard; Hall, Nathan; Haag, Ludwig

2006-06-01

This study concentrates on two assumptions of a social-cognitive model outlining the development of academic emotions (emotions directly linked to learning, classroom instruction, and achievement), namely on their antecedents and domain-specific organization. Our sample consisted of 200 students from Grades 7 to 10. Proposed relationships concerning the antecedents of academic emotions were tested in the context of Latin language instruction. Correlational analyses substantiated our assumptions concerning the relationships between academic emotions, students' cognitions, and aspects of the social environment. The mediating mechanisms proposed in the model were also confirmed using linear structural equation modelling. Subjective control- and value-related cognitions were found to mediate the relationship between aspects of the social environment and students' emotional experience. Our results further suggest that academic emotions are largely organized along domain-specific lines, with the degree of domain specificity varying according to the emotion in question. Implications for research and practice are discussed.

A Factor-Analytic Investigation of Role Types and Profiles of Higher Education Department Chairs.

ERIC Educational Resources Information Center

Carroll, James B.; Gmelch, Walter H.

This paper reports on a study that investigated the role, attitudes, and behaviors of department chairs in higher education. Specifically, the study investigated four objectives: (1) to examine role factors of effective chair performance; (2) to assess the impact of antecedent variables such as individual characteristics (gender, marital status,…

Prenatal and childhood antecedents of suicide: 50-year follow-up of the 1958 British Birth Cohort study.

PubMed

Geoffroy, M-C; Gunnell, D; Power, C

2014-04-01

We aimed to elucidate early antecedents of suicide including possible mediation by early child development. Using the 1958 birth cohort, based on British births in March 1958, individuals were followed up to adulthood. We used data collected at birth and at age 7 years from various informants. Suicides occurring up to 31 May 2009 were identified from linked national death certificates. Multivariable Cox proportional hazard models were used to investigate risk factors. Altogether 12399 participants (n = 44 suicides) had complete data. The strongest prenatal risk factors for suicide were: birth order, with risk increasing in later-born children [p trend = 0.063, adjusted hazard ratio (HR)], e.g. for fourth- or later-born children [HR = 2.27, 95% confidence interval (CI) 0.90-5.75]; young maternal age (HR = 1.18, 95% CI 0.34-4.13 for ⩽19 years and HR = 0.41, 95% CI 0.19-0.91 for >29 years, p trend = 0.034); and low (<2.5 kg) birth weight (HR = 2.48, 95% CI 1.03-5.95). The strongest risk factors at 7 years were externalizing problems in males (HR = 2.96, 95% CI 1.03-8.47, p trend = 0.050) and number of emotional adversities (i.e. parental death, neglected appearance, domestic tension, institutional care, contact with social services, parental divorce/separation and bullying) for which there was a graded association with risk of suicide (p trend = 0.033); the highest (HR = 3.12, 95% CI 1.01-9.62) was for persons with three or more adversities. Risk factors recorded at birth and at 7 years may influence an individual's long-term risk of suicide, suggesting that trajectories leading to suicide have roots in early life. Some factors are amenable to intervention, but for others a better understanding of causal mechanisms may provide new insights for intervention to reduce suicide risk.

Rainfall-runoff properties of tephra: Simulated effects of grain-size and antecedent rainfall

NASA Astrophysics Data System (ADS)

Jones, Robbie; Thomas, Robert E.; Peakall, Jeff; Manville, Vern

2017-04-01

Rain-triggered lahars (RTLs) are a significant and often persistent secondary volcanic hazard at many volcanoes around the world. Rainfall on unconsolidated volcaniclastic material is the primary initiation mechanism of RTLs: the resultant flows have the potential for large runout distances (> 100 km) and present a substantial hazard to downstream infrastructure and communities. RTLs are frequently anticipated in the aftermath of eruptions, but the pattern, timing and scale of lahars varies on an eruption-by-eruption and even catchment-by-catchment basis. This variability is driven by a set of local factors including the grain size distribution, thickness, stratigraphy and spatial distribution of source material in addition to topography, vegetation coverage and rainfall conditions. These factors are often qualitatively discussed in RTL studies based on post-eruption lahar observations or instrumental detections. Conversely, this study aims to move towards a quantitative assessment of RTL hazard in order to facilitate RTL predictions and forecasts based on constrained rainfall, grain size distribution and isopach data. Calibrated simulated rainfall and laboratory-constructed tephra beds are used within a repeatable experimental set-up to isolate the effects of individual parameters and to examine runoff and infiltration processes from analogous RTL source conditions. Laboratory experiments show that increased antecedent rainfall and finer-grained surface tephra individually increase runoff rates and decrease runoff lag times, while a combination of these factors produces a compound effect. These impacts are driven by increased residual moisture content and decreased permeability due to surface sealing, and have previously been inferred from downstream observations of lahars but not identified at source. Water and sediment transport mechanisms differ based on surface grain size distribution: a fine-grained surface layer displayed airborne remobilisation

Ptaquiloside from bracken in stream water at base flow and during storm events.

PubMed

Clauson-Kaas, Frederik; Ramwell, Carmel; Hansen, Hans Chr B; Strobel, Bjarne W

2016-12-01

and soil. Catchment-specific factors such as the soil pH, topography, hydrology, and bracken coverage will evidently affect the level of PTA observed in the receiving stream, as well as the distance from bracken, but time since precipitation seems most important. Studying PTA loads and transport in surface streams fed by bracken-infested catchments, simply taking occasional grab samples will not capture the precipitation-linked pulses. The place and time of sampling governs the findings, and including event-based sampling is essential to provide a more complete picture of PTA loads to surface water. Copyright © 2016 Elsevier Ltd. All rights reserved.

Oxorhenium complexes bearing the water-soluble tris(pyrazol-1-yl)methanesulfonate, 1,3,5-triaza-7-phosphaadamantane, or related ligands, as catalysts for Baeyer-Villiger oxidation of ketones.

PubMed

Martins, Luísa M D R S; Alegria, Elisabete C B A; Smoleński, Piotr; Kuznetsov, Maxim L; Pombeiro, Armando J L

2013-04-15

New rhenium(VII or III) complexes [ReO3(PTA)2][ReO4] (1) (PTA = 1,3,5-triaza-7-phosphaadamantane), [ReO3(mPTA)][ReO4]I (2) (mPTA = N-methyl-1,3,5-triaza-7-phosphaadamantane cation), [ReO3(HMT)2][ReO4] (3) (HMT = hexamethylenetetramine), [ReO3(η(2)-Tpm)(PTA)][ReO4] (4) [Tpm = hydrotris(pyrazol-1-yl)methane, HC(pz)3, pz = pyrazolyl], [ReO3(Hpz)(HMT)][ReO4] (5) (Hpz = pyrazole), [ReO(Tpms)(HMT)] (6) [Tpms = tris(pyrazol-1-yl)methanesulfonate, O3SC(pz)3(-)] and [ReCl2{N2C(O)Ph}(PTA)3] (7) have been prepared from the Re(VII) oxide Re2O7 (1-6) or, in the case of 7, by ligand exchange from the benzoyldiazenido complex [ReCl2{N2C(O)Ph}(Hpz)(PPh3)2], and characterized by IR and NMR spectroscopies, elemental analysis and electrochemical properties. Theoretical calculations at the density functional theory (DFT) level of theory indicated that the coordination of PTA to both Re(III) and Re(VII) centers by the P atom is preferable compared to the coordination by the N atom. This is interpreted in terms of the Re-PTA bond energy and hard-soft acid-base theory. The oxo-rhenium complexes 1-6 act as selective catalysts for the Baeyer-Villiger oxidation of cyclic and linear ketones (e.g., 2-methylcyclohexanone, 2-methylcyclopentanone, cyclohexanone, cyclopentanone, cyclobutanone, and 3,3-dimethyl-2-butanone or pinacolone) to the corresponding lactones or esters, in the presence of aqueous H2O2. The effects of a variety of factors are studied toward the optimization of the process.

An Empirical Study on the Role of Context Factors in Employees' Commitment to Change

ERIC Educational Resources Information Center

Soumyaja, Devi; Kamlanabhan, T. J.; Bhattacharyya, Sanghamitra

2011-01-01

The study attempts to address the gap of exploring the possible antecedents of employees' commitment to change and its three dimensions. The role of context factors--participation in decision making, quality of communication, trust in management and history of change--are tested on overall commitment to change and also on its three…

Creative Self-Efficacy: The Role of Self-Regulation for Schoolwork and Boredom as Antecedents, and Divergent Thinking as a Consequence

ERIC Educational Resources Information Center

Puente-Díaz, Rogelio; Cavazos-Arroyo, Judith

2017-01-01

The purpose of our investigation was to examine the role of intrinsic and extrinsic regulation and boredom as antecedents of creative self-efficacy. In addition, we also assessed the effect of creative self-efficacy on divergent thinking among children. A battery of questionnaires assessing regulation for schoolwork, creative self-efficacy,…

Work-Family Conflict, Part I: Antecedents of Work-Family Conflict in National Collegiate Athletic Association Division I-A Certified Athletic Trainers

PubMed Central

Mazerolle, Stephanie M; Bruening, Jennifer E; Casa, Douglas J

2008-01-01

Context: Work-family conflict (WFC) involves discord that arises when the demands of work interfere with the demands of family or home life. Long work hours, minimal control over work schedules, and time spent away from home are antecedents to WFC. To date, few authors have examined work-family conflict within the athletic training profession. Objective: To investigate the occurrence of WFC in certified athletic trainers (ATs) and to identify roots and factors leading to quality-of-life issues for ATs working in the National Collegiate Athletic Association Division I-A setting. Design: Survey questionnaire and follow-up, in-depth, in-person interviews. Setting: Division I-A universities sponsoring football. Patients or Other Participants: A total of 587 ATs (324 men, 263 women) responded to the questionnaire. Twelve ATs (6 men, 6 women) participated in the qualitative portion: 2 head ATs, 4 assistant ATs, 4 graduate assistant ATs, and 2 AT program directors. Data Collection and Analysis: Multiple regression analysis was performed to determine whether workload and travel predicted levels of WFC. Analyses of variance were calculated to investigate differences among the factors of sex, marital status, and family status. Interviews were transcribed verbatim and then analyzed using computer software as well as member checks and peer debriefing. The triangulation of the data collection and multiple sources of qualitative analysis were utilized to limit potential researcher prejudices. Results: Regression analyses revealed that long work hours and travel directly contributed to WFC. In addition to long hours and travel, inflexible work schedules and staffing patterns were discussed by the interview participants as antecedents to WFC. Regardless of sex (P  =  .142), marital status (P  =  .687), family status (P  =  .055), or age of children (P  =  .633), WFC affected Division I-A ATs. Conclusions: No matter their marital or family status, ATs employed at

Effect of antecedent-hydrological conditions on rainfall triggering of debris flows in ash-fall pyroclastic mantled slopes of Campania (southern Italy)

USGS Publications Warehouse

Napolitano, E.; Fusco, F; Baum, Rex L.; Godt, Jonathan W.; De Vita, P.

2016-01-01

Mountainous areas surrounding the Campanian Plain and the Somma-Vesuvius volcano (southern Italy) are among the most risky areas of Italy due to the repeated occurrence of rainfallinduced debris flows along ash-fall pyroclastic soil-mantled slopes. In this geomorphological framework, rainfall patterns, hydrological processes taking place within multi-layered ash-fall pyroclastic deposits and soil antecedent moisture status are the principal factors to be taken into account to assess triggering rainfall conditions and the related hazard. This paper presents the outcomes of an experimental study based on integrated analyses consisting of the reconstruction of physical models of landslides, in situ hydrological monitoring, and hydrological and slope stability modeling, carried out on four representative source areas of debris flows that occurred in May 1998 in the Sarno Mountain Range. The hydrological monitoring was carried out during 2011 using nests of tensiometers and Watermark pressure head sensors and also through a rainfall and air temperature recording station. Time series of measured pressure head were used to calibrate a hydrological numerical model of the pyroclastic soil mantle for 2011, which was re-run for a 12-year period beginning in 2000, given the availability of rainfall and air temperature monitoring data. Such an approach allowed us to reconstruct the regime of pressure head at a daily time scale for a long period, which is representative of about 11 hydrologic years with different meteorological conditions. Based on this simulated time series, average winter and summer hydrological conditions were chosen to carry out hydrological and stability modeling of sample slopes and to identify Intensity- Duration rainfall thresholds by a deterministic approach. Among principal results, the opposing winter and summer antecedent pressure head (soil moisture) conditions were found to exert a significant control on intensity and duration of rainfall

Antecedent precipitation index determined from CST estimates of rainfall

NASA Technical Reports Server (NTRS)

Martin, David W.

1992-01-01

This paper deals with an experimental calculation of a satellite-based antecedent precipitation index (API). The index is also derived from daily rain images produced from infrared images using an improved version of GSFC's Convective/Stratiform Technique (CST). API is a measure of soil moisture, and is based on the notion that the amount of moisture in the soil at a given time is related to precipitation at earlier times. Four different CST programs as well as the Geostationary Operational Enviroment Satellite (GOES) Precipitation Index developed by Arkin in 1979 are compared to experimental results, for the Mississippi Valley during the month of July. Rain images are shown for the best CST code and the ARK program. Comparisons are made as to the accuracy and detail of the results for the two codes. This project demonstrates the feasibility of running the CST on a synoptic scale. The Mississippi Valley case is well suited for testing the feasibility of monitoring soil moisture by means of CST. Preliminary comparisons of CST and ARK indicate significant differences in estimates of rain amount and distribution.

Temperament and parenting antecedents of individual differences in three-year-old boys' pride and shame reactions.

PubMed

Belsky, J; Domitrovich, C; Crnic, K

1997-06-01

To examine individual differences in pride and shame reactions of 3-year-olds and their temperamental and parenting antecedents, 110 boys were studied at ages 36 and 37 months in a "rigged" achievement situation. After being trained to complete explicitly stipulated "easy" and "difficult" tasks before a buzzer sounded, success and failure were manipulated by artificially "rigging" how much time the child had to work on these tasks. Children's facial, verbal, and postural reactions to success and failure were composited to create pride scores following success and shame scores following failure. As expected, pride reactions were greater following success on the difficult than on the easy task, and shame reactions were greater following failure on the easy than on the difficult task. Early temperament (at 12/13 months) proved unrelated to pride and shame. With respect to parenting, measurements composited across 15, 21, 27, and 33 months showed that mothers and fathers who were more positive in their parenting had children who displayed less pride, and that children whose parents (especially mothers) were more negative in their parenting evinced less shame. These counterintuitive findings are discussed in terms of differences between assessments of parenting obtained in this investigation of parenting antecedents and those obtained in other studies of parental responses in the achievement situation itself. Directions for future research are outlined.

Internal marketing and the antecedents of nurse satisfaction and loyalty.

PubMed

Peltier, James W; Pointer, Lucille; Schibrowsky, John A

2008-01-01

Employee satisfaction and retention are critical issues that influence the success of any organization. Yet, one of the most critical problems facing the worldwide health care industry is the shortage of qualified nurses. Recent calls have been made within the traditional nursing literature for research that utilizes marketing and business models to better understand nurse satisfaction and retention. The purpose of this study is to develop scales that can be used to empirically test a model of the proposed antecedents of nurse job satisfaction and loyalty which have been used widely in the internal marketing and the relationship-marketing literature. Specifically, the study will investigate the degree to which structural bonding, social bonding, financial bonding activities, and quality of care impact how well nurses are satisfied with their job and their commitment to the organization. The results show that quality of care most impacted nurse satisfaction and loyalty, followed by structural, social, and financial bonds.

A Paradoxical Effect of Presession Attention on Stereotypy: Antecedent Attention as an Establishing, Not an Abolishing, Operation

PubMed Central

Roantree, Christina F; Kennedy, Craig H

2006-01-01

Previous studies have shown that presession attention for problem behavior can serve as an abolishing operation when attention functions as a positive reinforcer. In the current study, we show that the stereotypy of a child with severe disabilities was undifferentiated during standard analogue functional analysis conditions. However, when noncontingent presession attention was provided, stereotypy occurred for social attention as a positive reinforcer, suggesting that the antecedent manipulation functioned as an establishing operation. PMID:17020219

A paradoxical effect of presession attention on stereotypy: antecedent attention as an establishing, not an abolishing, operation.

PubMed

Roantree, Christina F; Kennedy, Craig H

2006-01-01

Previous studies have shown that presession attention for problem behavior can serve as an abolishing operation when attention functions as a positive reinforcer. In the current study, we show that the stereotypy of a child with severe disabilities was undifferentiated during standard analogue functional analysis conditions. However, when noncontingent presession attention was provided, stereotypy occurred for social attention as a positive reinforcer, suggesting that the antecedent manipulation functioned as an establishing operation.

Directional Processing and Noise Reduction in Hearing Aids: Individual and Situational Influences on Preferred Setting.

PubMed

Neher, Tobias; Wagener, Kirsten C; Fischer, Rosa-Linde

2016-09-01

A better understanding of individual differences in hearing aid (HA) outcome is a prerequisite for more personalized HA fittings. Currently, knowledge of how different user factors relate to response to directional processing (DIR) and noise reduction (NR) is sparse. To extend a recent study linking preference for DIR and NR to pure-tone average hearing thresholds (PTA) and cognitive factors by investigating if (1) equivalent links exist for different types of DIR and NR, (2) self-reported noise sensitivity and personality can account for additional variability in preferred DIR and NR settings, and (3) spatial target speech configuration interacts with individual DIR preference. Using a correlational study design, overall preference for different combinations of DIR and NR programmed into a commercial HA was assessed in a complex speech-in-noise situation and related to PTA, cognitive function, and different personality traits. Sixty experienced HA users aged 60-82 yr with controlled variation in PTA and working memory capacity took part in this study. All of them had participated in the earlier study, as part of which they were tested on a measure of "executive control" tapping into cognitive functions such as working memory, mental flexibility, and selective attention. Six HA settings based on unilateral (within-device) or bilateral (across-device) DIR combined with inactive, moderate, or strong single-microphone NR were programmed into a pair of behind-the-ear HAs together with individually prescribed amplification. Overall preference was assessed using a free-field simulation of a busy cafeteria situation with either a single frontal talker or two talkers at ±30° azimuth as the target speech. In addition, two questionnaires targeting noise sensitivity and the "Big Five" personality traits were administered. Data were analyzed using multiple regression analyses and repeated-measures analyses of variance with a focus on potential interactions between the HA

Antecedents of Teachers' Educational Beliefs about Mathematics and Mathematical Knowledge for Teaching among In-Service Teachers in High Poverty Urban Schools

ERIC Educational Resources Information Center

Corkin, Danya M.; Ekmekci, Adem; Papakonstantinou, Anne

2015-01-01

This paper examines the antecedents of three types of educational beliefs about mathematics among 151 teachers predominantly working in high poverty schools. Studies across various countries have found that teachers in high poverty schools are less likely to enact instructional approaches that align with mathematics reform standards set by…

A Comparison of Teacher Checklists Used over 15 Days and a One-Day Antecedent Analysis to Conduct a Medication Trial

ERIC Educational Resources Information Center

Smith, R.; Larsen, D.; Derby, K. M.; McLaughlin, T. F.; Weber, K. P.; Brown, K.; Herring, M.

2004-01-01

A one-day antecedent analysis and an extended school-based double-blind medication trial were used to assess the effects of Ritalin on the disruptive behavior of a child diagnosed with ADHD. The evaluations took place in an outpatient clinic and in the child's general education classroom. The results of both evaluations indicated that the…

The Risk Factors of Performance-Based Early Frailty in Midlife and Older Age.

PubMed

Peterson, Matthew J

2018-01-01

Background: Identifying impairments prior to onset of physical frailty may inform targeted interventions. An objective, clinically feasible early frailty measure, termed performance-based early frailty (PBEF) was developed, and antecedent and current risk factors were examined. Method: Data were from N = 104 participants of the Fels Longitudinal Study. PBEF was derived from age-specific cut points for time to complete five chair stands and walk four meters. "Pre-PBEF" and "PBEF" were defined as impairment in one or both measures, respectively. Candidate PBEF risk factors included body composition, health and quality of life, grip strength, and biomarker measures. Results: Pre-PBEF was identified in 26% and 30% of midlife and older adults, and PBEF was identified in 11% and 14% of midlife and older adults, respectively. When predicting midlife PBEF, only current physical activity was significant (odds ratio [OR] = 0.18). In older adults, PBEF status was predicted by previous heavier drinking (OR = 3.09), previous better grip strength (OR = 0.92), current poorer sleep habits (OR = 1.19), and current higher C-reactive protein concentrations (OR = 1.20). Conclusion: Differing age group patterns of predictors emerged, suggesting that PBEF in midlife is likely a state influenced by current health status, whereas older age PBEF is influenced by both current and antecedent factors.

Longitudinal changes in the antecedent and early manifest course of bipolar disorder-A narrative review of prospective studies.

PubMed

Pfennig, Andrea; Leopold, Karolina; Ritter, Philipp; Böhme, Anne; Severus, Emanuel; Bauer, Michael

2017-05-01

Prospective study designs ideally allow patients to be followed from the first manifestations of the illness or even from an at-risk stage. It can thus provide data on the predictive value of changes in clinical symptomatology, cognition or further biological markers to broaden our understanding of the etiopathology and symptomatic trajectory of bipolar disorders. The scope of this narrative review is to summarize evidence from prospectively collected data on psychopathological and other clinical and biological changes in the early developmental course of bipolar disorders. The narrative review was based on a literature search conducted in February 2016 within the PubMed library for prospective study data of persons in antecedent and early manifest stages of manifest bipolar disorder published within the last 15 years. A total of 19 prospective studies were included. Regarding psychopathological features; personality, temperament and character traits as well as changes in sleep and circadian rhythm, the evidence suggests that risk factors for the development of bipolar disorder can already be described and should be studied further to understand their interaction, mediation with other factors and timing in the developmental process of bipolar disorder. Apart from the positive family history, childhood anxiety, sleep problems, subthreshold (hypo)manic symptoms and certain character traits/emotionality should be identified and monitored already in clinical practice as their presence likely increases risk of bipolar disorder. Up to date no substantiated evidence was found from prospective studies addressing cognitive features, life events, immunological parameters and morphological central nervous system changes as potential risk factors for bipolar disorder. For an improved understanding of episodic disorders, longitudinal data collection is essential. Since the etiology of bipolar disorders is complex, a number of potential risk factors have been proposed

Antecedents and near-term consequences for interdisciplinary dissertators.

PubMed

Kniffin, Kevin M; Hanks, Andrew S

2017-01-01

Given the complexity of questions studied by academicians, institutions are increasingly encouraging interdisciplinary research to tackle these problems; however, neither the individual-level pathways leading to the pursuit of interdisciplinary research nor the resulting market outcomes have been closely examined. In this study, we focus attention on the individuals who complete interdisciplinary dissertations to ask "who are they and how do they fare after earning the PhD?" Since interdisciplinary research is known to be relatively risky among academics, we examine demographic variables that are known to be associated in other contexts with risk-taking before considering whether interdisciplinarians' outcomes are different upon graduating. First among our three main findings, students whose fathers earned a college degree demonstrated a 1.3% higher probability of pursuing interdisciplinary research. Second, the probability that non-citizens pursue interdisciplinary dissertation work is 4.6% higher when compared with US citizens. Third, individuals who complete an interdisciplinary dissertation tend to earn approximately 2% less in the year after graduation; however, mediation analyses show that the decision to become a postdoctoral researcher accounts for the apparent salary penalty. Our findings shed light on the antecedents and near-term consequences for individuals who complete interdisciplinary dissertations and contribute to broader policy debates concerning supports for academic career paths.

Systematic Review and Meta-Analysis of Avascular Necrosis and Posttraumatic Arthritis After Traumatic Hip Dislocation.

PubMed

Kellam, Patrick; Ostrum, Robert F

2016-01-01

To determine the incidence rate and associative factors for the development of avascular necrosis (AVN) and posttraumatic arthritis (PTA) after traumatic hip dislocation and time to reduction. A comprehensive search of databases including PubMed, Cochrane Database, and Embase through April 2014 for English articles reporting complications of AVN and PTA after hip dislocation was performed. Inclusion criteria were English-only studies, a patient population of adults, study outcomes of AVN and/or PTA reported, and articles reported at least type I dislocations. Two authors independently extracted data from the selected studies and the data collected were compared to verify agreement. Random-effects models were used for meta-analysis. The overall event rate of AVN and PTA was calculated and stratified based on Thompson-Epstein of the hip dislocation. Odds ratios were calculated for those articles that reported rates of AVN based on time to reduction. For anterior dislocations, the event rate for AVN ranged from 0.087 to 0.333, whereas the event rate for PTA ranged from 0.125 to 0.700. Analysis of posterior dislocations revealed that the event rate for AVN ranged from 0.106 to 0.430; additionally, the event rate for PTA ranged from 0.194 to 0.586. For posterior hip dislocations and type I and II anterior dislocations, the severity of the injury correlates with an increase in the development of AVN and PTA. The odds ratio of AVN for those hip dislocations reduced after 12 hours versus those reduced before 12 hours was 5.627. Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Landing strategies of athletes with an asymptomatic patellar tendon abnormality.

PubMed

Edwards, Suzi; Steele, Julie R; McGhee, Deirdre E; Beattie, Sue; Purdam, Craig; Cook, Jill L

2010-11-01

Risk factors associated with a clinical presentation of patellar tendinopathy are patellar tendon ultrasonographic abnormality (PTA) and excessive loading. It remains unknown whether characteristics of an athlete's landing technique contribute to this excessive patellar tendon loading. This study investigated whether asymptomatic athletes with and without PTA had different landing strategies and hypothesized that asymptomatic athletes with a PTA would create higher patellar tendon loading and a different lower-limb landing strategy compared with athletes with normal patellar tendons. Seven athletes with no previous history or clinical signs of patellar tendon injury with a PTA were matched to athletes with normal patellar tendons (controls). Participants performed five successful trials of a stop-jump task, which involved a simultaneous two-foot horizontal and then vertical landing. During each trial, the participants' ground reaction forces and lower-limb electromyographic data were recorded, the three-dimensional kinematics measured, and the peak patellar tendon force calculated by dividing the net knee joint moment by the patellar tendon moment arm. Significant between-group differences in landing technique were mostly observed during the horizontal landing phase. Participants with a PTA created similar patellar tendon loading to the controls, but with altered sequencing, by landing with significantly greater knee flexion and extending their hips while the controls flexed their hips as they landed, reflecting a different muscle recruitment order compared with the PTA group. The crucial part in the development of PTA and, in turn, patellar tendinopathy may not be the magnitude of the patellar tendon load but rather the loading patterns. This research provides clinicians with important landing assessment criteria against which to identify athletes at risk of developing patellar tendinopathy.

B. F. Skinner's Science and Human Behavior: its antecedents and its consequences.

PubMed Central

Catania, A Charles

2003-01-01

Skinner's Science and Human Behavior marked a transition from a treatment of behavior that took physics as its reference science to one that emphasized behavior as a fundamental part of the subject matter of biology. The book includes what may be Skinner's earliest statement about the similarity of operant selection to Darwinian natural selection in phylogeny. Other major topics discussed in the book included multiple causation, private events, the self, and social contingencies. Among the important antecedents were Skinner's own Behavior of Organisms and Keller & Schoenfeld's Pincinples of Psychology. Current developments in education, behavioral economics, and some behavior therapies can be attributed at least in part to Skinner's seminal work. The effective behavioral analysis of governmental and religious systems will probably depend on elaborations of our understanding of verbal behavior. PMID:14964711

B. F. Skinner's Science and Human Behavior: its antecedents and its consequences.

PubMed

Catania, A Charles

2003-11-01

Skinner's Science and Human Behavior marked a transition from a treatment of behavior that took physics as its reference science to one that emphasized behavior as a fundamental part of the subject matter of biology. The book includes what may be Skinner's earliest statement about the similarity of operant selection to Darwinian natural selection in phylogeny. Other major topics discussed in the book included multiple causation, private events, the self, and social contingencies. Among the important antecedents were Skinner's own Behavior of Organisms and Keller & Schoenfeld's Pincinples of Psychology. Current developments in education, behavioral economics, and some behavior therapies can be attributed at least in part to Skinner's seminal work. The effective behavioral analysis of governmental and religious systems will probably depend on elaborations of our understanding of verbal behavior.

Antecedents of Teachers Fostering Effort within Two Different Management Regimes: An Assessment-Based Accountability Regime and Regime without External Pressure on Results

ERIC Educational Resources Information Center

Christophersen, Knut-Andreas; Elstad, Eyvind; Turmo, Are

2012-01-01

This article focuses on the comparison of organizational antecedents of teachers' fostering of students' effort in two quite different accountability regimes: one management regime with an external-accountability system and one with no external accountability devices. The methodology involves cross-sectional surveys from two different management…

Missing drivers with dementia: antecedents and recovery.

PubMed

Rowe, Meredeth A; Greenblum, Catherine A; Boltz, Marie; Galvin, James E

2012-11-01

To determine the circumstances under which persons with dementia become lost while driving, how missing drivers are found, and how Silver Alert notifications are instrumental in those discoveries. A retrospective, descriptive study. Retrospective record review. Conducted using 156 records from the Florida Silver Alert program for October 2008 through May 2010. These alerts were issued in Florida for missing drivers with dementia. Information derived from the reports on characteristics of the missing driver, antecedents to missing event, and discovery of a missing driver. The majority of missing drivers were men aged 58 to 94 who were being cared for by a spouse. Most drivers became lost on routine, caregiver-sanctioned trips to usual locations. Only 15% were driving when found, with most being found in or near a parked car. Law enforcement officers found the large majority. Only 40% were found in the county where they went missing, and 10% were found in a different state. Silver Alert notifications were most effective for law enforcement; citizen alerts resulted in a few discoveries. There was 5% mortality in the study population, with those living alone more likely to be found dead than alive. An additional 15% were found in dangerous situations such as stopped on railroad tracks. Thirty-two percent had documented driving or other dangerous errors, such as driving the wrong way or into secluded areas or walking in or near roadways. © 2012, Copyright the Authors Journal compilation © 2012, The American Geriatrics Society.

Emotion Decoding and Incidental Processing Fluency as Antecedents of Attitude Certainty.

PubMed

Petrocelli, John V; Whitmire, Melanie B

2017-07-01

Previous research demonstrates that attitude certainty influences the degree to which an attitude changes in response to persuasive appeals. In the current research, decoding emotions from facial expressions and incidental processing fluency, during attitude formation, are examined as antecedents of both attitude certainty and attitude change. In Experiment 1, participants who decoded anger or happiness during attitude formation expressed their greater attitude certainty, and showed more resistance to persuasion than participants who decoded sadness. By manipulating the emotion decoded, the diagnosticity of processing fluency experienced during emotion decoding, and the gaze direction of the social targets, Experiment 2 suggests that the link between emotion decoding and attitude certainty results from incidental processing fluency. Experiment 3 demonstrated that fluency in processing irrelevant stimuli influences attitude certainty, which in turn influences resistance to persuasion. Implications for appraisal-based accounts of attitude formation and attitude change are discussed.

Neonatal antecedents for cerebral palsy in extremely preterm babies and interaction with maternal factors.

PubMed

Tran, Uyen; Gray, Peter H; O'Callaghan, Michael J

2005-06-01

Preterm delivery is associated with an increased risk of cerebral palsy (CP). The greatest risk is for infants born <28 weeks' gestation. To identify significant neonatal risk factors for CP and explore the interactions between antenatal and neonatal risk factors, among extremely preterm infants of 27 weeks' gestation or less. Nested case control design. Infants born between 1989 and 1996, at 24-27 weeks' gestation, were evaluated: 30 with CP at 2 years corrected age and 120 control infants matched for gestation age. Neonatal variables were compared using matched analyses with the interaction between antenatal and neonatal factors being examined using logistic regression analyses. Risk factors for CP on matched analyses included patent ductus arteriosus requiring surgical ligation, peri-intraventricular haemorrhage, moderate to severe ventricular dilatation, periventricular leukomalacia (PVL) and need for home oxygen. Independent neonatal predictors were ventricular dilatation (OR 7.3; 95% CI 1.6, 32.3), PVL (OR 29.8; 95% CI 5.6, 159.1) and home oxygen use (OR 3.4; 95% CI 1.2, 9.4). No interaction terms in the logistic models were significant between the previously identified pregnancy risk factors of absence of antenatal steroids and intrauterine growth restriction and the neonatal risk factors. PVL is the most powerful independent predictor of CP in extremely preterm infants of 27 weeks' gestation or less and appears to be uninfluenced by antenatal factors.

Self-perception of the antecedents of loneliness among new mothers and pregnant women.

PubMed

Rokach, Ami

2007-02-01

This study examined the perceived causes of loneliness of pregnant women and mothers during the first year after childbirth experience. These were compared with the causes of loneliness of women in the general population. 91 pregnant women, 97 women during the first year following childbirth, and 208 women from the general population (M age = 30.4, SD = 10.4) answered a 29-item Loneliness Antecedents Questionnaire. In the questionnaire were 5 dimensions of sources of loneliness, namely, Personal Inadequacies, Developmental Deficits, Unfulfilling Intimate Relationships, Relocation/Significant Separation, and Social Marginality. Sources of loneliness were significantly different amongst the three groups. The differences were confined to the Personal Inadequacies, and the Relocation/Significant Separation subscales. In both, women from the general population had the highest mean subscale scores.

Vegetation anomalies caused by antecedent precipitation in most of the world

NASA Astrophysics Data System (ADS)

Papagiannopoulou, C.; Miralles, D. G.; Dorigo, W. A.; Verhoest, N. E. C.; Depoorter, M.; Waegeman, W.

2017-07-01

Quantifying environmental controls on vegetation is critical to predict the net effect of climate change on global ecosystems and the subsequent feedback on climate. Following a non-linear Granger causality framework based on a random forest predictive model, we exploit the current wealth of multi-decadal satellite data records to uncover the main drivers of monthly vegetation variability at the global scale. Results indicate that water availability is the most dominant factor driving vegetation globally: about 61% of the vegetated surface was primarily water-limited during 1981-2010. This included semiarid climates but also transitional ecoregions. Intra-annually, temperature controls Northern Hemisphere deciduous forests during the growing season, while antecedent precipitation largely dominates vegetation dynamics during the senescence period. The uncovered dependency of global vegetation on water availability is substantially larger than previously reported. This is owed to the ability of the framework to (1) disentangle the co-linearities between radiation/temperature and precipitation, and (2) quantify non-linear impacts of climate on vegetation. Our results reveal a prolonged effect of precipitation anomalies in dry regions: due to the long memory of soil moisture and the cumulative, non-linear, response of vegetation, water-limited regions show sensitivity to the values of precipitation occurring three months earlier. Meanwhile, the impacts of temperature and radiation anomalies are more immediate and dissipate shortly, pointing to a higher resilience of vegetation to these anomalies. Despite being infrequent by definition, hydro-climatic extremes are responsible for up to 10% of the vegetation variability during the 1981-2010 period in certain areas, particularly in water-limited ecosystems. Our approach is a first step towards a quantitative comparison of the resistance and resilience signature of different ecosystems, and can be used to benchmark Earth

Parental 'affectionless control' as an antecedent to adult depression: a risk factor refined.

PubMed

Mackinnon, A; Henderson, A S; Andrews, G

1993-02-01

It has been well established that individuals with a history of depression report their parents as being less caring and more overprotective of them than do controls. 'Affectionless control' in childhood has thus been proposed as a risk factor for depression. Evidence is presented from a logistic regression analysis of data from a volunteer community sample that lack of care rather than over-protection is the primary risk factor. No evidence for an interaction effect of low care and over-protection was found.

Mechanism of Scrapie Prion Precipitation with Phosphotungstate Anions

PubMed Central

2015-01-01

The phosphotungstate anion (PTA) is widely used to facilitate the precipitation of disease-causing prion protein (PrPSc) from infected tissue for applications in structural studies and diagnostic approaches. However, the mechanism of this precipitation is not understood. In order to elucidate the nature of the PTA interaction with PrPSc under physiological conditions, solutions of PTA were characterized by NMR spectroscopy at varying pH. At neutral pH, the parent [PW12O40]3– ion decomposes to give a lacunary [PW11O39]7– (PW11) complex and a single orthotungstate anion [WO4]2– (WO4). To measure the efficacy of each component of PTA, increasing concentrations of PW11, WO4, and mixtures thereof were used to precipitate PrPSc from brain homogenates of scrapie prion-infected mice. The amount of PrPSc isolated, quantified by ELISA and immunoblotting, revealed that both PW11 and WO4 contribute to PrPSc precipitation. Incubation with sarkosyl, PTA, or individual components of PTA resulted in separation of higher-density PrP aggregates from the neuronal lipid monosialotetrahexosylganglioside (GM1), as observed by sucrose gradient centrifugation. These experiments revealed that yield and purity of PrPSc were greater with polyoxometalates (POMs), which substantially supported the separation of lipids from PrPSc in the samples. Interaction of POMs and sarkosyl with brain homogenates promoted the formation of fibrillar PrPSc aggregates prior to centrifugation, likely through the separation of lipids like GM1 from PrPSc. We propose that this separation of lipids from PrP is a major factor governing the facile precipitation of PrPSc by PTA from tissue and might be optimized further for the detection of prions. PMID:25695325

Role of percent tissue altered on ectasia after LASIK in eyes with suspicious topography.

PubMed

Santhiago, Marcony R; Smadja, David; Wilson, Steven E; Krueger, Ronald R; Monteiro, Mario L R; Randleman, J Bradley

2015-04-01

To investigate the association of the percent tissue altered (PTA) with the occurrence of ectasia after LASIK in eyes with suspicious preoperative corneal topography. This retrospective comparative case-control study compared associations of reported ectasia risk factors in 129 eyes, including 57 eyes with suspicious preoperative Placido-based corneal topography that developed ectasia after LASIK (suspect ectasia group), 32 eyes with suspicious topography that remained stable for at least 3 years after LASIK (suspect control group), and 30 eyes that developed ectasia with bilateral normal topography (normal topography ectasia group). Groups were subdivided based on topographic asymmetry into high- or low-suspect groups. The PTA, preoperative central corneal thickness (CCT), residual stromal bed (RSB), and age (years) were evaluated in univariate and multivariate analyses. Average PTA values for normal topography ectasia (45), low-suspect ectasia (39), high-suspect ectasia (36), low-suspect control (32), and high-suspect control (29) were significantly different from one another in all comparisons (P < .003) except high- and low-suspect ectasia groups (P = .033), and presented the highest discriminative capability of all variables evaluated. Age was only significantly different between the high-suspect ectasia and normal topography ectasia groups, and CCT was not significantly different between any groups. Stepwise logistic regression revealed the PTA as the most significant independent variable (P < .0001), with RSB the next most significant parameter. There remains a significant correlation between PTA values and ectasia risk after LASIK, even in eyes with suspicious corneal topography. Less tissue alteration, or a lower PTA value, was necessary to induce ectasia in eyes with more remarkable signs of topographic abnormality, and PTA provided better discriminative capabilities than RSB for all study populations. Copyright 2015, SLACK Incorporated.

Socialization and individual antecedents of adolescents' and young adults' moral motivation.

PubMed

Malti, Tina; Buchmann, Marlis

2010-02-01

Socialization and individual differences were examined as antecedents of moral motivation in representative samples of 15-year-old adolescents (N = 1,258; 54% female) and 21-year-old young adults (N = 584; 53% female). The adolescents' primary caregivers (N = 1,056) also participated. The strength of moral motivation was rated by participants' responses to two hypothetical moral dilemmas in terms of action decisions, emotion attributions, and justifications. Socialization was measured by the perceived quality of friendship, parent-child relationships, and educational background. The importance attached to social justice and various personality traits were also assessed. Adolescents' moral motivation was positively associated with the quality of their parent-child relationship and the importance of social justice. Young adults' moral motivation was predicted by the perceived quality of friendships, the importance of social justice, and agreeableness. For both groups, moral motivation was greater in females. The theoretical implications of the findings for the development of moral motivation are discussed.

Missing Drivers with Dementia: Antecedents and Recovery

PubMed Central

Rowe, Meredeth A.; Greenblum, Catherine A.; Boltz, Marie; Galvin, James E.

2013-01-01

OBJECTIVES To determine the circumstance in which persons with dementia become lost while driving, how missing drivers are found, and how Silver Alert notificationsare instrumental in those discoveries. DESIGN A retrospective, descriptive study. SETTING Retrospective record review. PARTICIPANTS Conducted using 156 records from the Florida Silver Alert program for the time period October, 2008 through May 2010. These alerts were issued in Florida for a missing driver with dementia. MEASUREMENTS Information derived from the reports on characteristics of the missing driver, antecedents to missing event and discovery of a missing driver. RESULTS and CONCLUSION The majority of missing drivers were males, with ages ranging from 58’94, who were being cared for by a spouse. Most drivers became lost on routine, caregiver-sanctioned trips to usual locations. Only 15% were in the act of driving when found with most being found in or near a parked car and the large majority were found by law enforcement officers. Only 40% were found in the county they went missing and 10% were found in a different state. Silver Alert notifications were most effective for law enforcement; citizen alerts resulted in a few discoveries. There was a 5% mortality rate in the study population with those living alone more likely to be found dead than alive. An additional 15% were found in dangerous situations such as stopped on railroad tracks. Thirty-two percent had documented driving or dangerous errors such as, driving thewrong way or into secluded areas, or walking in or near roadways. PMID:23134069

Emergent Literacy Skills, Behavior Problems and Familial Antecedents of Reading Difficulties: A Follow-Up Study of Reading Achievement from Kindergarten to Fifth Grade

ERIC Educational Resources Information Center

Costa, Hugo Camara; Perdry, Herve; Soria, Carmen; Pulgar, Salome; Cusin, Francoise; Dellatolas, Georges

2013-01-01

This study examined the relation between emergent literacy skills, teachers' reports of behavioral problems, and word reading achievement in a community sample of French students. Family background was investigated and included familial antecedents of reading difficulties (Fa/Rd) and parents' educational level. The analyses explored the pattern of…

Relationship quality and relationship context as antecedents of person- and task-focused interpersonal citizenship behavior.

PubMed

Settoon, Randall P; Mossholder, Kevin W

2002-04-01

A model hypothesizing relationship quality and relationship context as antecedents of two complementary forms of interpersonal citizenship behavior (ICB) was tested. Measures with coworkers as the frame of reference were used to collect data from 273 individuals working in 2 service-oriented organizations. As hypothesized, variables reflecting relationship quality were associated with person-focused ICB, as mediated by empathic concern. Also as hypothesized, a relationship context variable, network centrality, exhibited a direct relationship with task-focused ICB. Unexpectedly, network centrality was directly associated with person-focused ICB. and empathic concern was associated with task-focused ICB. The results are discussed, and implications for research and practice are offered.

Molecular Screening Tools to Study Arabidopsis Transcription Factors

PubMed Central

Wehner, Nora; Weiste, Christoph; Dröge-Laser, Wolfgang

2011-01-01

In the model plant Arabidopsis thaliana, more than 2000 genes are estimated to encode transcription factors (TFs), which clearly emphasizes the importance of transcriptional control. Although genomic approaches have generated large TF open reading frame (ORF) collections, only a limited number of these genes is functionally characterized, yet. This review evaluates strategies and methods to identify TF functions. In particular, we focus on two recently developed TF screening platforms, which make use of publically available GATEWAY®-compatible ORF collections. (1) The Arabidopsis thaliana TF ORF over-Expression (AtTORF-Ex) library provides pooled collections of transgenic lines over-expressing HA-tagged TF genes, which are suited for screening approaches to define TF functions in stress defense and development. (2) A high-throughput microtiter plate based protoplast trans activation (PTA) system has been established to screen for TFs which are regulating a given promoter:Luciferase construct in planta. PMID:22645547

A Directory of European, Middle Eastern, and N. African Coastal Ground Control Points for Mapping Satellite Images

DTIC Science & Technology

1984-03-15

MOLINI I. PANAREA C. FARO SALINA n. FOSSA FELCI SAL. PTA LINGUA SALINA M. ARIA VULCANO PTA DEI PORCI VUL, ® LONGITUDE + E, -W 15.152...I-l I-l I-l 30 SACLANTCEN SM-170 PTA SPADILLO PANT. PTA LI MARS I " C. PONENTE LAMPED. C. GRECALE PTA B. TUCCIO LIN. M. VULCANO LINOSA

Do children exploit the Maxim of Antecedent in order to interpret ambiguous descriptions?

PubMed

Surian, L

1991-06-01

Twenty Italian six-year-olds and 20 eight-year-olds were asked to interpret eight ambiguous and eight clear definite descriptions. All ambiguous descriptions could refer to three drawings, one of which had been described by the subjects immediately before the comprehension task. In half of the trials with ambiguous messages the children's interlocutor was present while the children were describing the drawings; in the other half he was absent. In both conditions subjects showed a preference for the referents they had already described, indicating that they applied egocentrically a comprehension strategy based on the Maxim of Antecedent (Jackson & Jacobs, 1982). Children's failures to differentiate their responses in the two conditions are considered to be due to difficulties in taking account of the given-new distinction for relevant information.

It matters how old you feel: Antecedents and performance consequences of average relative subjective age in organizations.

PubMed

Kunze, Florian; Raes, Anneloes M L; Bruch, Heike

2015-09-01

This article extends the conceptual knowledge of average relative subjective age in organizations by exploring organizational-level antecedents and consequences of employees, on average, feeling younger than their chronological age. We draw from the theories of selection-optimization-compensation and socioemotional selectivity to build a theoretical framework for relative subjective age in organizations. We hypothesize that companies in which employees, on average, perceive themselves to be younger than they actually are have a higher average individual goal accomplishment and, in turn, experience higher company performance. We further hypothesize that employees' average experience of high work-related meaning relates to a lower subjective age in organizations. In addition, we assess the role of environmental dynamism and age-inclusive human resource management as moderators in this theoretical model. Through empirically testing this model in a multisource dataset, including 107 companies with 15,164 participating employees, we received support for the hypothesized relationships. Our results contribute to current debates in the scientific literature on age and have important practical implications in light of the demographic changes faced by many companies. This research indicates to both researchers and practitioners that it is not employees' chronological age but their subjective age, a factor that can be influenced, which drives organizational performance outcomes. (c) 2015 APA, all rights reserved).

Antecedent Wetness Conditions based on ERS scatterometer data in support to rainfall-runoff modeling

NASA Astrophysics Data System (ADS)

Brocca, L.; Melone, F.; Moramarco, T.

2009-04-01

Despite of its small volume compared to other components of the hydrologic cycle, the soil moisture is of fundamental importance to many hydrological, meteorological, biological and biogeochemical processes. For storm rainfall-runoff modeling the estimation of the Antecedent Wetness Conditions (AWC) is one of the most important issues to determine the hydrological response. In this context, this study investigates the potential of the scatterometer on board of the ERS satellites for the assessment of soil wetness conditions at two different scales. The satellite soil moisture data set, available from 1992, is downloaded from the ERS/METOP Soil Moisture archive located at http://www.ipf.tuwien.ac.at/radar/index.php?go=ascat. At the local scale, the scatterometer-derived soil wetness index (SWI) data (Wagner, W., Lemoine, G., and Rott, H., 1999. A Method for Estimating Soil Moisture from ERS Scatterometer and Soil Data. Remote Sensing of Environment, 70, 191-207) have been compared with two in-situ soil moisture data sets. At the catchment scale, the reliability of the SWI to estimate the AWC has been tested considering its relationship with the soil potential maximum retention parameter, S, of the Soil Conservation Service-Curve Number (SCS-CN) method for abstraction. The parameter S has been derived by considering several flood events occurred from 1992 to 2005 in different catchments of central Italy. The performance of two Antecedent Precipitation Indices (API) and one Base Flow Index (BFI), usually employed in the hydrological practice for the AWC assessment, have been compared with the SWI. The obtained results show a high accuracy of the SWI for the estimation of wetness conditions both at the local and catchment scale despite of the complex orography of the investigated areas (Brocca, L., Melone, F., Moramarco, T., Morbidelli, R., 2009. Antecedent wetness conditions based on ERS scatterometer data. Journal of Hydrology, 364 (1-2), 73-87). At the local scale

Antecedents and sex/gender differences in youth suicidal behavior

PubMed Central

Rhodes, Anne E; Boyle, Michael H; Bridge, Jeffrey A; Sinyor, Mark; Links, Paul S; Tonmyr, Lil; Skinner, Robin; Bethell, Jennifer M; Carlisle, Corine; Goodday, Sarah; Hottes, Travis Salway; Newton, Amanda; Bennett, Kathryn; Sundar, Purnima; Cheung, Amy H; Szatmari, Peter

2014-01-01

Suicide is the second leading cause of death in youth globally; however, there is uncertainty about how best to intervene. Suicide rates are typically higher in males than females, while the converse is true for suicide attempts. We review this “gender paradox” in youth, and in particular, the age-dependency of these sex/gender differences and the developmental mechanisms that may explain them. Epidemiologic, genetic, neurodevelopmental and psychopathological research have identified suicidal behaviour risks arising from genetic vulnerabilities and sex/gender differences in early adverse environments, neurodevelopment, mental disorder and their complex interconnections. Further, evolving sex-/gender-defined social expectations and norms have been thought to influence suicide risk. In particular, how youth perceive and cope with threats and losses (including conforming to others’ or one’s own expectations of sex/gender identity) and adapt to pain (through substance use and help-seeking behaviours). Taken together, considering brain plasticity over the lifespan, these proposed antecedents to youth suicide highlight the importance of interventions that alter early environment(s) (e.g., childhood maltreatment) and/or one’s ability to adapt to them. Further, such interventions may have more enduring protective effects, for the individual and for future generations, if implemented in youth. PMID:25540727

Pink triangles: antecedents and consequences of perceived workplace discrimination against gay and lesbian employees.

PubMed

Ragins, B R; Cornwell, J M

2001-12-01

A model of perceived sexual orientation discrimination was tested in a national sample of 534 gay and lesbian employees. The effects of legislation, organizational policies and practices, and work group composition on perceived sexual orientation discrimination were examined, as well as the attitudinal and organizational outcomes associated with discrimination. Gay employees were more likely to report discrimination when employed in groups that were primarily heterosexual and in organizations that lacked supportive policies and were not covered by protective legislation. Disclosure of sexual orientation at work was related to discrimination and antecedent variables. Perceived discrimination was associated with negative work attitudes and fewer promotions. Organizational policies and practices had the strongest impact on perceived discrimination and were directly related to outcomes.

The Influence Of Antecedent Conditions On Flood Risk In Sub-Saharan Africa

NASA Astrophysics Data System (ADS)

Bischiniotis, K.

2017-12-01

Flood risk management has traditionally focused on long-term flood protection measures. However, due to high investment costs many lower-income countries are not able to afford hard infrastructure that provides the desired safety levels. Consequently, timely warning of not only extreme events is crucial in risk mitigation at these places. Most flood warning systems have predominantly focused on precipitation as the main predictive factor with lead times of hours or days. Nevertheless, other factors such as anomalous positive water storage, soil saturation and evapotranspiration also affect the flood build-up period. Gaining insights in the processes occurring during this period can increase warning lead times, resulting in more effective preparation. This study follows a pragmatic approach to analyse the hydro-meteorological pre-conditions of 501 damaging floods over the period 1980 to 2010 in sub-Saharan Africa. These are separated into a) weather scale (0-7 days) and b) seasonal scale conditions (up to 6 months) before each event in a way that the two periods do not overlap. The 7-day preceding precipitation (PRE7) and the Standardized Precipitation Evapotranspiration Index (SPEI) reflect the conditions in the two time scale domains, respectively. Using the flood onset date and the location derived from NatCatSERVICE database, the antecedent conditions of each flood are systematically compared to the same conditions during the other years of the dataset, during which no floods were reported. Results indicate that high PRE7 does not always justify the flood generation by itself since there were several cases where similar magnitude precipitation events did not lead to flooding. The SPEI in the end of the flood onset month seems to be a good flood monitoring tool as in most cases it well reflects the wet conditions (80% of the floods). The SPEIs of different averaging times prior to flood events also show that many floods were preceded by wet conditions (70% , 65

Paranoia as an Antecedent and Consequence of Getting Ahead in Organizations: Time-Lagged Effects Between Paranoid Cognitions, Self-Monitoring, and Changes in Span of Control

PubMed Central

Van Quaquebeke, Niels

2016-01-01

A 6-month, time-lagged online survey among 441 employees in diverse industries was conducted to investigate the role paranoia plays as an antecedent and as a consequence of advancement in organizations. The background of the study is the argument that it requires active social sense-making and behavioral adaptability to advance in organizations. The present paper thus explores the extent to which employees’ paranoid cognitions—representative of a heightened albeit suspicious sense-making and behavioral adaptability—link with their advancement in organizations (operationalized as changes in afforded span of control), both as an antecedent and an outcome. Following the strategy to illuminate the process by interaction analysis, both conditions (antecedent and outcome) are examined in interaction with employees’ self-monitoring, which is considered representative of a heightened but healthy sense-making and behavioral adaptability. Results support the expected interference interaction between paranoid cognitions and self-monitoring in that each can to some degree compensate for the other in explaining employees’ organizational advancement. Reversely, changes in span of control also affected paranoid cognitions. In particular, low self-monitors, i.e., those low in adaptive sense-making, reacted with heightened paranoid cognitions when demoted. In effect, the present study is thus the first to empirically support that paranoid cognitions can be a consequence but also a prerequisite for getting ahead in organizations. Practical advice should, however, be suspended until it is better understood whether and under what circumstances paranoia may relate not only to personally getting ahead but also to an increased effectiveness for the benefit of the organization. PMID:27713724

Using ecological momentary assessment to examine antecedents and correlates of physical activity bouts in adults age 50+ years: a pilot study.

PubMed

Dunton, Genevieve Fridlund; Atienza, Audie A; Castro, Cynthia M; King, Abby C

2009-12-01

National recommendations supporting the promotion of multiple short (10+ minute) physical activity bouts each day to increase overall physical activity levels in middle-aged and older adults underscore the need to identify antecedents and correlates of such daily physical activity episodes. This pilot study used Ecological Momentary Assessment to examine the time-lagged and concurrent effects of empirically supported social, cognitive, affective, and physiological factors on physical activity among adults age 50+ years. Participants (N = 23) responded to diary prompts on a handheld computer four times per day across a 2-week period. Moderate-to-vigorous physical activity (MVPA), self-efficacy, positive and negative affect, control, demand, fatigue, energy, social interactions, and stressful events were assessed during each sequence. Multivariate results showed that greater self-efficacy and control predicted greater MVPA at each subsequent assessment throughout the day (p < 0.05). Also, having a positive social interaction was concurrently related to higher levels of MVPA (p = 0.052). Time-varying multidimensional individual processes predict within daily physical activity levels.

Romantic Relationship Patterns in Young Adulthood and Their Developmental Antecedents

PubMed Central

Rauer, Amy J.; Pettit, Gregory S.; Lansford, Jennifer E.; Bates, John E.; Dodge, Kenneth A.

2013-01-01

The delayed entry into marriage that characterizes modern society raises questions about young adults' romantic relationship trajectories and whether patterns found to characterize adolescent romantic relationships persist into young adulthood. The current study traced developmental transitions into and out of romantic relationships from age 18 through age 25 in a sample of 511 young adults. The developmental antecedents of these different romantic relationship experiences in both distal and proximal family and peer domains were also examined. Analyses included both person-oriented and variable-oriented approaches. Findings show 5 distinct clusters varying in timing, duration, and frequency of participation in romantic relationships that range from those who had only recently entered into a romantic relationship to those who had been in the same relationship from age 18 to age 25. These relationship outcome trajectory clusters were predicted by variations in competence in early relationships with family and peers. Interpersonal experiences in family and peer contexts in early childhood through adolescence thus may form a scaffold on which later competence in romantic relationships develops. Findings shed light on both normative and nonnormative developmental transitions of romantic relationships in young adulthood. PMID:23421803

The Relationship Between Neutrophil–Lymphocyte Ratio and Primary Patency of Percutaneous Transluminal Angioplasty in Hemodialysis Arteriovenous Fistula Stenosis When Using Conventional and Drug-Eluting Balloons

DOE Office of Scientific and Technical Information (OSTI.GOV)

Çildağ, Mehmet Burak, E-mail: mbcildag@yahoo.com; Çildağ, Songül, E-mail: songulcildag@yahoo.com; Köseoğlu, Ömer Faruk Kutsi, E-mail: kutsikoseoglu@yahoo.com

ObjectiveThe aim of this study is to investigate the potential association of neutrophil–lymphocyte ratio (NLR) between primary patency of percutaneous transluminal angioplasty (PTA) in hemodialysis arteriovenous fistula stenosis and type (Conventional and Drug-Eluting) of balloons used in PTA.Material-MethodThis retrospective study consists of 78 patients with significant arteriovenous fistulas stenosis who were treated with PTA by using Drug-Eluting Balloon (DEB) (n = 29) or Conventional Balloon (CB) (n = 49). NLR was calculated from preinterventional blood samples. All patients were classified into two groups. Group A; primary patency <12 months (43/78), Group B; primary patency ≥12 months (35/78). Cox regression analysis and Kaplan–Meier method were used to determine respectivelymore » independent factors affecting the primary patency and to compare the primary patency for the two balloon types.ResultsNLR ratio and balloon type of the two groups were significantly different (p = 0.002, p = 0.010). The cut-off value of NLR was 3.18 for determination of primary patency, with sensitivity of 81.4 % and specificity of 51.4 %. Primary patency rates between PTA with DEB and CB displayed statistically significant differences (p < 0.05). The cut-off value was 3.28 for determination of 12-month primary patency with the conventional balloon group; sensitivity was 81.8 % and specificity was 81.3 %. There was no statistical relation between NLR levels and the drug-eluting balloon group in 12-month primary patency (p = 0.927).ConclusionIncreased level of NLR may be a risk factor in the development of early AVF restenosis after successful PTA. Preferring Drug-Eluting Balloon at an increased level of NLR can be beneficial to prolong patency.« less

Physical therapist assistants' perceptions of the documented roles of the physical therapist assistant.

PubMed

Robinson, A J; DePalma, M T; McCall, M

1995-12-01

This study investigated physical therapist assistants' (PTAs) perceptions of the documented roles of PTAs and compared those perceptions with those of physical therapists from a previous study. A questionnaire that described 79 physical therapy activities was distributed to a sample (n = 400) of PTAs derived from the American Physical Therapy Association membership. The response rate was 56% (n = 225). Respondents indicated whether each activity was included in the documentation describing PTA roles. Discriminant analyses were used to determine whether demographic factors predicted the pattern of responses. In addition, meta-analytic techniques were used to determine whether PTA responses were different from those of physical therapists gathered previously. The greatest agreement of PTA opinions with published guidelines occurred for treatment implementation activities, and the lowest level of agreement occurred for items designated as administrative activities. Responses of PTAs were different from those of physical therapists on 21 of the 79 activities. The greatest number of these differences occurred for evaluative functions (n = 9). Physical therapist assistants' perceptions of documented PTA roles were generally less consistent with published guidelines than were those of physical therapists. Physical therapist assistants' perceptions of the roles of the PTA were, for some activities, not consistent with written guidelines. Using the data provided in this study, discussions to revise the documentation of the scope of PTA practice may focus on those activities for which disagreement between PTAs and physical therapists exists and for which opinions differ markedly from published guidelines. [Robinson AJ, DePalma MT, McCall M. Physical therapist assistants' perceptions of the documented roles of the physical therapist assistant.

Communication Style as an Antecedent to Reactance, Self-Efficacy, and Restoration of Freedom for Drug- and Alcohol-Involved Women on Probation and Parole.

PubMed

Smith, Sandi W; Cornacchione, Jennifer J; Morash, Merry; Kashy, Deborah; Cobbina, Jennifer

2016-05-01

This study extends research on psychological reactance theory by examining probation and parole officer (PO) communication style as an antecedent to female offenders' reactance and 2 indicators of subsequent drug and alcohol abuse while serving probation or parole sentences. Structural equation modeling was conducted to test a mediational path model, the results of which demonstrated that perceptions of PO conversational communication style were negatively associated with reactance but positively associated with self-efficacy to avoid drugs and alcohol. Conversely, women who perceived their POs as having a conformity communication style were more likely to report higher levels of reactance and lower self-efficacy to avoid drugs and alcohol. Psychological reactance led to desire to restore freedom, whereas self-efficacy to avoid drugs and alcohol did not. Desire to restore freedom was linked with reports of using drugs and alcohol and violations of parole or probation for using drugs and alcohol. These findings highlight the importance of communication style as an antecedent to reactance and in the relationship between POs and offenders.

Modeling Technology Preparedness as an Antecedent of Mathematic Pre-Service Teachers' Self Efficacy, Perceived Usefulness and Intention toward Use of Information Technology in Nigeria

ERIC Educational Resources Information Center

Shittu, Ahmed Tajudeen; Gambari, Amosa Isiaka; Gimba, W. Rahmatu; Ahmed, Hassan

2016-01-01

This study test a specified model of information technology (IT) preparedness as antecedent of pre-service teachers' self efficacy, perceived usefulness, and intention toward IT use for teaching in Nigeria. Survey method was employed for prosecuting the study. The participants of the study comprise of 200 pre-service teachers studying Mathematics…

Paving the road to war with group membership, appraisal antecedents, and anger.

PubMed

Cheung-Blunden, Violet; Blunden, Bill

2008-01-01

This study uses appraisal theory, functionalist approach to emotions, and recent theory on group emotions as a basic framework to model the genesis of supporting military action. During the year after the events of 9/11, 588 college students participated in a series of four studies that assessed religious affiliation, appraisal antecedents, anger response to viewing photographs of the 9/11 attack, and support for military action. Structural equation modeling demonstrated that the relation between support for the war and attitudes toward terrorism and relevance could be explained adequately by a model in which anger mediated the effects of attitudes and relevance on support. Attitudes toward terrorism were further identified as mediators that could explain the group effect by Christians. The result was not only generalizable across the conflict in Afghanistan and Iraq, but also in terms of how consent for war manifests itself--outright calls for bloodshed versus more subtle, politically loaded, posturing (e.g. entreaties to "support our troops"). Copyright 2008 Wiley-Liss, Inc.

Intentions to work during terminal illness: an exploratory study of antecedent conditions.

PubMed

Westaby, James D; Versenyi, Andrea; Hausmann, Robert C

2005-11-01

Facing a terminal illness is an unimaginably difficult experience, yet many individuals intend to work despite their prognosis. However, research has not systematically examined the potential antecedents underlying such intentions. Using behavioral intention theory as an underlying framework, this study hypothesized that reasons for working (intrinsic and extrinsic), the will to live, disability severity, accessibility of travel, and age would predict intentions to work during terminal illness. A representative sample of medically diagnosed amyotrophic lateral sclerosis (a.k.a. Lou Gehrig's disease) patients with a mean life expectancy of approximately 3 years participated (mean age=57.8 years). Controlling for length of diagnosis, employment status, and demographic variables, results indicated that intrinsic reasons were particularly strong predictors of intentions, followed by age, disability severity, and accessibility of travel. Exploratory findings also indicated that behavioral intentions were positively related to future employment status, consistent with past theory. ((c) 2005 APA, all rights reserved).

Bombing alone: tracing the motivations and antecedent behaviors of lone-actor terrorists,.

PubMed

Gill, Paul; Horgan, John; Deckert, Paige

2014-03-01

This article analyzes the sociodemographic network characteristics and antecedent behaviors of 119 lone-actor terrorists. This marks a departure from existing analyses by largely focusing upon behavioral aspects of each offender. This article also examines whether lone-actor terrorists differ based on their ideologies or network connectivity. The analysis leads to seven conclusions. There was no uniform profile identified. In the time leading up to most lone-actor terrorist events, other people generally knew about the offender's grievance, extremist ideology, views, and/or intent to engage in violence. A wide range of activities and experiences preceded lone actors' plots or events. Many but not all lone-actor terrorists were socially isolated. Lone-actor terrorists regularly engaged in a detectable and observable range of activities with a wider pressure group, social movement, or terrorist organization. Lone-actor terrorist events were rarely sudden and impulsive. There were distinguishable behavioral differences between subgroups. The implications for policy conclude this article. © 2013 American Academy of Forensic Sciences.

A perspective of percutaneous transluminal angioplasty.

PubMed

Stanson, A W

1983-01-01

PTA is a relatively new procedure which is still evolving. More technical improvements are needed. Stiffer balloon plastics and devices to measure arterial wall compliance during balloon inflation are predicted to lead to better long-term success rates. Increasing case numbers provide greater expertise and subsequent refinements in performance and case selection. These factors will lead to improved statistics. Other features of overall patient care must be considered also. The procedure is easy for patients to tolerate, and they can return to activities and work in three or four days. The overall cost is much cheaper than surgery, even at a conservative success rate of 65 percent. There is minimal risk and morbidity, and virtually no mortality. PTA can be repeated if the lesion recurs. Severe complications are rare and almost always surgically treatable. If PTA fails to achieve success, a traditional surgical procedure can be performed. Percutaneous transluminal angioplasty is an important therapeutic alternative to traditional medical and surgical treatment for occlusive arterial disease. It can save legs, veins, time, and money. We need to refine and accurately record the use of this procedure. Total cooperation among clinicians, surgeons, and radiologists is essential for proper utilization of PTA.

Are perfectionistic concerns an antecedent of or a consequence of binge eating, or both? A short-term four-wave longitudinal study of undergraduate women.

PubMed

Smith, Martin M; Sherry, Simon B; Gautreau, Chantal M; Stewart, Sherry H; Saklofske, Donald H; Mushquash, Aislin R

2017-08-01

The perfectionism model of binge eating (PMOBE) posits perfectionistic concerns are a vulnerability factor for binge eating. And evidence indicates perfectionistic concerns and binge eating correlate positively. However, the direction of this relationship is seldom studied. Accordingly, it is unclear whether perfectionistic concerns represent an antecedent of binge eating (a vulnerability effect with perfectionistic concerns predicting increases in binge eating), a consequence of binge eating (a complication effect with binge eating predicting increases in perfectionistic concerns), or both (reciprocal relations with perfectionistic concerns predicting increases in binge eating and vice versa). To address these questions, we studied 200 undergraduate women using a 4-week, 4-wave cross-lagged longitudinal design. Consistent with the PMOBE, perfectionistic concerns predicted increased binge eating (vulnerability effect). But, binge eating did not predict increased perfectionistic concerns (complication effect). Findings support the long-held theory that perfectionistic concerns are part of the premorbid personality of women vulnerable to binge eating. Copyright © 2017 Elsevier Ltd. All rights reserved.

Ptaquiloside in Pteridium aquilinum subsp. aquilinum and corresponding soils from the South of Italy: influence of physical and chemical features of soils on its occurrence.

PubMed

Zaccone, Claudio; Cavoski, Ivana; Costi, Roberta; Sarais, Giorgia; Caboni, Pierluigi; Traversa, Andreina; Miano, Teodoro M

2014-10-15

The bracken fern Pteridium aquilinum (L.) Kuhn, one of the most common plant species on Earth, produces a wide range of secondary metabolites including the norsesquiterpene glucoside ptaquiloside (PTA). Several studies are present in literature about eco-toxicological aspects related to PTA, whereas results about the effect of growth conditions and soil properties on the production and mobility of PTA are sometimes conflicting and further investigations are needed. The aim of the present work is to investigate the occurrence and possible fate of PTA in soils showing different physical and chemical features, and collected in several areas of the South of Italy. The PTA content was determined in both soil and fern samples by GC-MS; both the extraction protocol and recovery were previously tested through incubation studies. Soils samples were also characterized from the physical and chemical points of view in order to correlate the possible influence of soil parameters on PTA production and occurrence. PTA concentration in P. aquilinum fern seemed to be significantly affected by the availability of nutrients (mainly P) and soil pH. At the same time, PTA concentration in soil samples was always undetectable, independent of the PTA concentration in the corresponding Pteridium samples and pedo-climatic conditions. This seems to suggest the degradation of the PTA by indigenous soil microbial community, whereas incubation studies underlined a certain affinity of PTA for both organic colloids and clay/silt particles. Copyright © 2014 Elsevier B.V. All rights reserved.

Developmental antecedents of political ideology: a longitudinal investigation from birth to age 18 years.

PubMed

Fraley, R Chris; Griffin, Brian N; Belsky, Jay; Roisman, Glenn I

2012-01-01

The study reported here examined the developmental antecedents of conservative versus liberal ideologies using data from the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development and a follow-up study conducted when the sample was 18 years old. Specifically, we examined variation in conservative versus liberal ideologies at age 18 years as a function of parenting attitudes and child temperament during the first 5 years of life. Consistent with long-standing theories on the development of political attitudes, our results showed that parents' authoritarian attitudes assessed when children were 1 month old predicted conservative attitudes in those children more than 17 years later. Consistent with the findings of Block and Block (2006), our results also showed that early childhood temperament predicted variation in conservative versus liberal ideologies.

Part II: Differences between Sexually Victimized and Nonsexually Victimized Male Adolescent Sexual Abusers and Delinquent Youth--Further Group Comparisons of Developmental Antecedents and Behavioral Challenges

ERIC Educational Resources Information Center

Leibowitz, George S.; Burton, David L.; Howard, Alan

2012-01-01

In a recent paper published in the "Journal of Child Sexual Abuse," we assessed the differences between sexually victimized and nonsexually victimized male adolescent sexual abusers (Burton, Duty, & Leibowitz, 2011). We found that the sexually victimized group had more severe developmental antecedents (e.g., trauma and early exposure to…

Effect of heat input on microstructure, wear and friction behavior of (wt.-%) 50FeCrC-20FeW-30FeB coating on AISI 1020 produced by using PTA welding.

PubMed

Özel, Cihan; Gürgenç, Turan

2018-01-01

In this study, AISI 1020 steel surface was coated in different heat inputs with (wt.-%) 50FeCrC-20FeW-30FeB powder mixture by using plasma transferred arc (PTA) welding method. The microstructure of the coated samples were investigated by using optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray (EDS). The hardness was measured with micro hardness test device. The dry sliding wear and friction coefficient properties were determined using a block-on-disk type wear test device. Wear tests were performed at 19.62 N, 39.24 N, 58.86 N load and the sliding distance of 900 m. The results were shown that different microstructures formed due to the heat input change. The highest average micro hardness value was measured at 1217 HV on sample coated with low heat input. It was determined that the wear resistance decreased with increasing heat input.

Effect of heat input on microstructure, wear and friction behavior of (wt.-%) 50FeCrC-20FeW-30FeB coating on AISI 1020 produced by using PTA welding

PubMed Central

Gürgenç, Turan

2018-01-01

In this study, AISI 1020 steel surface was coated in different heat inputs with (wt.-%) 50FeCrC-20FeW-30FeB powder mixture by using plasma transferred arc (PTA) welding method. The microstructure of the coated samples were investigated by using optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray (EDS). The hardness was measured with micro hardness test device. The dry sliding wear and friction coefficient properties were determined using a block-on-disk type wear test device. Wear tests were performed at 19.62 N, 39.24 N, 58.86 N load and the sliding distance of 900 m. The results were shown that different microstructures formed due to the heat input change. The highest average micro hardness value was measured at 1217 HV on sample coated with low heat input. It was determined that the wear resistance decreased with increasing heat input. PMID:29324875

Antecedent moisture content and soil texture effects on infiltration and erosion

NASA Astrophysics Data System (ADS)

Mamedov, A. I.; Huang, C.; Levy, G. J.

2006-12-01

Water infiltration, seal formation, runoff and erosion depend on the soil's inherent properties and surface conditions. Most erosion models consider only soil inherent properties (mainly texture) in assessing infiltration and erosion without consideration of spatial and temporary variation in the surface condition, particularly the antecedent moisture content. We studied the interaction of two different surface conditions, i.e. antecedent moisture content (AMC) and aging (timing after wetting) on infiltration (IR), seal formation (runoff generation) and erosion in four soils varying from loam to clay. Soil samples were packed in erosion box and wetted with different amounts of water (0, 1, 2, 3, 4, 6, 8, or 16 mm) to obtain a wide moisture range (i.e., pF 0-6.2, or from air dry to full saturation). The boxes were put in plastic bags and allowed to age for 0.01, 1, 3, or 7 days. Then the soil in the erosion box exposed to 60 mm of rain. At no aging final IR of soils did not change significantly, but runoff volume (a measure for seal development) and soil loss increased with an increase in AMC mainly because of aggregate breakdown. For any given aging, the highest IR and smallest runoff volume and soil loss were obtained at the intermediate AMC levels (pF 2.4-4.2, between wilting point and field capacity). For instance, in the clay soil to which 3 mm of water (pF~2.7) was added, as aging increased from one to seven days, final IR increased from 5.3 to 7.9 mm h-1, while runoff and soil loss decreased from 34 mm to 22 mm, and from 630 to 360 g m2 respectively. At this AMC range, increasing aging time resulted in up to 40% increase in IR and decrease in runoff or soil loss. This tendency significantly more pronounced for clay soils because water-filled pores in the clay fabric were considered active in the stabilization process and the development of cohesive bonds between and within particles during the aging period. The results of this study are important for soil

Rooster Springs Elementary Teams Up for Success

ERIC Educational Resources Information Center

Edwards, Jennifer

2012-01-01

For many schools, membership in PTA can become "expected," instead of being a positive, fun opportunity to involve parents and support students and teachers. With more than 800 students each year, Rooster Springs Elementary PTA (RSE PTA) in Dripping Springs, Texas, never worried about membership recruitment. The PTA often assumed that…

At-risk studies and clinical antecedents of psychosis, bipolar disorder and depression: a scoping review in the context of clinical staging.

PubMed

Hartmann, Jessica A; Nelson, Barnaby; Ratheesh, Aswin; Treen, Devi; McGorry, Patrick D

2018-06-04

Identifying young people at risk of developing serious mental illness and identifying predictors of onset of illness has been a focus of psychiatric prediction research, particularly in the field of psychosis. Work in this area has facilitated the adoption of the clinical staging model of early clinical phenotypes, ranging from at-risk mental states to chronic and severe mental illness. It has been a topic of debate if these staging models should be conceptualised as disorder-specific or transdiagnostic. In order to inform this debate and facilitate cross-diagnostic discourse, the present scoping review provides a broad overview of the body of literature of (a) longitudinal at-risk approaches and (b) identified antecedents of (homotypic) illness progression across three major mental disorders [psychosis, bipolar disorder (BD) and depression], and places these in the context of clinical staging. Stage 0 at-risk conceptualisations (i.e. familial high-risk approaches) were identified in all three disorders. However, formalised stage 1b conceptualisations (i.e. ultra-high-risk approaches) were only present in psychosis and marginally in BD. The presence of non-specific and overlapping antecedents in the three disorders may support a general staging model, at least in the early stages of severe psychotic or mood disorders.

The Antecedents and Consequences of Health Literacy in an Ecological Perspective: Results from an Experimental Analysis.

PubMed

Lorini, Chiara; Ierardi, Francesca; Bachini, Letizia; Donzellini, Martina; Gemmi, Fabrizio; Bonaccorsi, Guglielmo

2018-04-19

This study analyses the relationship between the antecedents and consequences of health literacy (HL) at the ecological level among the nations involved in the European Health Literacy Survey (HLS-EU). The antecedents and consequences were investigated by means of proxy indicators. The HL was measured using the 47-item HLS-EU questionnaire (HLS-EUQ47) and the Newest Vital Sign (NVS). The two measures stood in significant correlation to the outcomes of the sub-discipline of the Euro Health Consumer Index (r = 0.790 for HLS-EUQ47; r = 0.789 for NVS). The HLS-EUQ47 also stood in correlation to the percentage of population with post-secondary education (r = 0.810), the reading performance for 15-year-old students (r = 0.905), the presence of a national screening program for breast (r = 0.732) or cervical cancer (r = 0.873). The NVS stood in correlation with the unemployment rate (r = −0.778), the Gross Domestic Product (r = 0.719), the Gini coefficient (r = −0.743), the rank of the Euro Patient Empowerment Index (r = −0.826), the expenditure on social protection (r = 0.814), the Consumer Empowerment Index (r = 0.898), the percentage of adults using the internet for seeking health information (r = 0.759), the prevalence of overweight individuals (r = −0.843), the health expenditure (r = 0.766), as well as the percentage of individuals using the internet for interacting with public authorities (r = 0.755). This study provides some preliminary considerations regarding alternative means by which to study HL and proposes new methods for experimentation. The methods and the results could offer a means by which the relationship between society and overall healthcare protection could be strengthened.

Exploring critical factors influencing physicians' acceptance of mobile electronic medical records based on the dual-factor model: a validation in Taiwan.

PubMed

Liu, Chung-Feng; Cheng, Tain-Junn

2015-02-07

With respect to information management, most of the previous studies on the acceptance of healthcare information technologies were analyzed from "positive" perspectives. However, such acceptance is always influenced by both positive and negative factors and it is necessary to validate both in order to get a complete understanding. This study aims to explore physicians' acceptance of mobile electronic medical records based on the dual-factor model, which is comprised of inhibitors and enablers, to explain an individual's technology usage. Following an earlier healthcare study in the USA, the researchers conducted a similar survey for an Eastern country (Taiwan) to validate whether perceived threat to professional autonomy acts as a critical inhibitor. In addition, perceived mobility, which is regarded as a critical feature of mobile services, was also evaluated as a common antecedent variable in the model. Physicians from three branch hospitals of a medical group were invited to participate and complete questionnaires. Partial least squares, a structural equation modeling technique, was used to evaluate the proposed model for explanatory power and hypotheses testing. 158 valid questionnaires were collected, yielding a response rate of 33.40%. As expected, the inhibitor of perceived threat has a significant impact on the physicians' perceptions of usefulness as well as their intention to use. The enablers of perceived ease of use and perceived usefulness were also significant. In addition, as expected, perceived mobility was confirmed to have a significant impact on perceived ease of use, perceived usefulness and perceived threat. It was confirmed that the dual-factor model is a comprehensive method for exploring the acceptance of healthcare information technologies, both in Western and Eastern countries. Furthermore, perceived mobility was proven to be an effective antecedent variable in the model. The researchers believe that the results of this study will

Assessing groundwater recharge mechanisms in the Pampa del Tamarugal Basin of northern Chile's Atacama Desert

NASA Astrophysics Data System (ADS)

Jayne, R., Jr.; Pollyea, R.; Dodd, J. P.; Olson, E. J.; Swanson, S.

2015-12-01

The hyper-arid Atacama Desert in northern Chile is one of the driest inhabited places on Earth receiving little to no rain (<5 mm/yr). Within the Tarapacá Region of the Atacama Desert, the Pampa del Tamarugal Aquifer (PTA) is the primary source of water for agriculture, industry, mining, and residential uses. The PTA covers 5,000 km2, and is located in the Pampa del Tamarugal Basin, which is situated between the Andes and the Coastal Cordillera, and is filled with ~1700m of Miocene and younger sediments. The source of recharge for the PTA originates as precipitation in the high Andes, which can receive up to 400 mm/yr of precipitation; however, the mechanisms and magnitude of recharge to the PTA are still poorly understood. Here, we present a regional scale, non-isothermal 2-D numerical groundwater model is developed to analyze the time scales and geological controls on fluid flow paths recharging the PTA. Results from this work suggest that (1) both shallow groundwater flow and deep (>1km) hydrothermal fluid circulation are responsible for recharging the PTA; (2) topography and geothermal gradients are the main driving factors for regional groundwater flow; (3) the Altos de Pica member 4, an ignimbrite layer in the sedimentary basin controls both heat and fluid flow in the western part of the basin, this is evident due to the presence of convection cells and meteoric water upwelling and presenting itself as surface water (salars); and (4) it takes meteoric water 100,000 years to travel from the high Andes to reach Pica and 1,000,000 years for salar formation. In addition, this work provides a theoretical basis for the spatial distribution of highly alkaline surface water bodies, known as salars in the western Atacama Desert.

Cutting-Balloon Angioplasty Versus Balloon Angioplasty as Treatment for Short Atherosclerotic Lesions in the Superficial Femoral Artery: Randomized Controlled Trial

DOE Office of Scientific and Technical Information (OSTI.GOV)

Poncyljusz, Wojciech, E-mail: wponcyl@poczta.onet.pl; Falkowski, Aleksander, E-mail: bakhis@hot.pl; Safranow, Krzysztof, E-mail: chrissaf@mp.pl

2013-12-15

Purpose: To evaluate the treatments of a short-segment atherosclerotic stenosis in the superficial femoral arteries with the cutting balloon angioplasty (CBA) versus conventional balloon angioplasty [percutaneous transluminal angioplasty (PTA)] in a randomized controlled trial. Material and Methods: The study group comprised 60 patients (33 men, 27 women; average age 64 years) with a short ({<=}5 cm) focal SFA de novo atherosclerotic stenosis associated with a history of intermittent claudication or rest pain. The primary end point of this study was the rate of binary restenosis in the treated segment 12 months after the intervention. All patients were evenly randomized tomore » either the PTA or CBA treatment arms. Follow-up angiograms and ankle-brachial index (ABI) measurements were performed after 12 months. The evaluation of the restenosis rates and factors influencing its occurrence were calculated by logistic regression analysis. Results: In the intention-to-treat analysis, restenosis rates after 2-month follow-up were 9 of 30 (30 %) in the PTA group and 4 of 30 (13 %) in the CBA group (p = 0.117). In the actual treatment analysis, after exclusion of patients who required nitinol stent placement for a suboptimal result after angioplasty alone (5 patients in the PTA group and none in the CBA group), restenosis rates were 9 of 25 (36 %) and 4 of 30 (13 %), respectively (p = 0.049). In the intention-to-treat analysis there were also significant differences in ABI values between the PTA and CBA groups at 0.77 {+-} 0.11 versus 0.82 {+-} 0.12, respectively (p = 0.039), at 12 months. Conclusion: Based on the presented results of the trial, CBA seems to be a safer and more effective than PTA for treatment of short atherosclerotic lesions in the superior femoral artery.« less

Mismatch negativity (MMN) and sensory auditory processing in children aged 9-12 years presenting with putative antecedents of schizophrenia.

PubMed

Bruggemann, Jason M; Stockill, Helen V; Lenroot, Rhoshel K; Laurens, Kristin R

2013-09-01

Identification of markers of abnormal brain function in children at-risk of schizophrenia may inform early intervention and prevention programs. Individuals with schizophrenia are characterised by attenuation of MMN amplitude, which indexes automatic auditory sensory processing. The current aim was to examine whether children who may be at increased risk of schizophrenia due to their presenting multiple putative antecedents of schizophrenia (ASz) are similarly characterised by MMN amplitude reductions, relative to typically developing (TD) children. EEG was recorded from 22 ASz and 24 TD children aged 9 to 12 years (matched on age, sex, and IQ) during a passive auditory oddball task (15% duration deviant). ASz children were those presenting: (1) speech and/or motor development lags/problems; (2) social, emotional, or behavioural problems in the clinical range; and (3) psychotic-like experiences. TD children presented no antecedents, and had no family history of a schizophrenia spectrum disorder. MMN amplitude, but not latency, was significantly greater at frontal sites in the ASz group than in the TD group. Although the MMN exhibited by the children at risk of schizophrenia was unlike that of their typically developing peers, it also differed from the reduced MMN amplitude observed in adults with schizophrenia. This may reflect developmental and disease effects in a pre-prodromal phase of psychosis onset. Longitudinal follow-up is necessary to establish the developmental trajectory of MMN in at-risk children. Copyright © 2013 The Authors. Published by Elsevier B.V. All rights reserved.

Antecedents of basic psychological need satisfaction of pharmacy students: The role of peers, family, lecturers and workload.

PubMed

Basson, Mariëtta J; Rothmann, Sebastiaan

2018-04-01

Self-determination theory (SDT) provides a model to improve pharmacy students' well-being or functioning in their study context. According to SDT, students need a context that satisfies their needs for autonomy, relatedness and competence in order to function optimally. Contextual factors that could have an impact on a student's functioning are lecturers, family, peers and workload. To investigate whether there is a difference between the contributions family, lecturers, peers and workload make towards the satisfaction of pharmacy students' basic psychological needs within a university context. An electronic survey was administered amongst students registered with the North-West University's School of Pharmacy. Registered pharmacy students, 779, completed said electronic survey comprised of a questionnaire on demographics, BMPN (Balanced Measure of Psychological Needs) and self-developed ANPNS (Antecedents of Psychological Need-satisfaction Scale). Data derived from the afore-going was analysed with the aid of structural equation modelling (SEM). Structural equation modelling explained 46%, 25% and 30% respectively of the total group's variances in autonomy, competence and relatedness satisfaction, and 26% of the variance in psychological need frustration. Peers and family played a significant role in the satisfaction of students' need for autonomy, relatedness and competence, whilst workload seemingly hampered satisfaction with regards to relatedness and autonomy. Workload contributed towards frustration with regards to psychological need satisfaction. The role played by lecturers in satisfying pharmacy students' need for autonomy, relatedness and competence will also be highlighted. This study added to the body of knowledge regarding contextual factors and the impact those factors have on pharmacy students' need satisfaction by illustrating that not all factors (family, lecturers, peers and workload) can be considered equal. Lecturers ought to recognise the

Are early-life antecedents of suicide mortality associated with psychiatric disorders and suicidal ideation in midlife?

PubMed

Geoffroy, M-C; Gunnell, D; Clark, C; Power, C

2018-02-01

To establish whether previously identified early-life antecedents of suicide mortality (i.e. low birthweight, younger maternal age, higher birth order, externalizing problems and adversities) are associated with proximal psychiatric disorders and suicidal ideation, which are themselves associated with an increased risk of suicide. Participants were from the 1958 British birth-cohort (N = 8905) with information on prenatal/childhood experiences and the Clinical Interview Schedule-Revised at age 45 years. Outcomes were as follows: any internalizing disorder (anxiety disorder/depressive episode), depressive episode, alcohol use disorder and suicidal ideation. After adjustment, higher birth order (P trend = 0.043), younger maternal age (P trend = 0.017) and increased number of childhood adversities (P trend = 0.026) were associated with an increased risk of internalizing disorders. For example, the OR (95% CI) in fourth- or later-born children was 1.48 (1.06-2.07) and for young maternal age (<19 years) was 1.31 (0.89-1.91). Effect sizes were similar in magnitude for depressive episode and suicidal ideation, although associations did not reach conventional significance levels. No associations were found for low birthweight and externalizing problems (in males) and investigated outcomes. Associations for younger maternal age, higher birth order and adversities with adult internalizing disorders suggest that psychiatric disorders may be on the pathway linking some early-life factors and suicide. © 2017 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Injury severity and disability in the selection of next level of care following acute medical treatment for traumatic brain injury.

PubMed

Malec, James F; Mandrekar, Jayawant N; Brown, Allen W; Moessner, Anne M

2009-01-01

To evaluate the association of demographic factors, post-traumatic amnesia (PTA) and a standardized measure of ability limitations with clinical decisions for Next Level of Care following acute hospital treatment for moderate-severe traumatic brain injury (TBI). A TBI Clinical Nurse specialist recorded PTA for 212 individuals and rated 159 on the Ability and Adjustment Indices of the Mayo-Portland Adaptability Inventory (MPAI-4) for comparison with clinical decisions. Multivariate logistic regression analyses revealed that independent ratings on the MPAI-4 Ability Index and PTA were associated with the clinical decision to admit to Inpatient Rehabilitation vs discharge to Home in 92.7% of the sample; ratings on the Ability Index alone were associated with this decision in 92.2% of cases. Age over 65 was the only variable associated with discharge to a Skilled Nursing Facility, correctly predicting this decision in 64% of cases. Use of a standardized measure of ability limitations appears feasible to provide supportive documentation and potentially improve the consistency of decision-making in recommending Inpatient Rehabilitation vs discharge to Home. Although age is a significant factor in the decision to discharge to a Skilled Nursing Facility, this decision appears complex and merits further study.

An Exploratory Study of Alpha Contracting: Antecedents, Processes, Issues, Success Factors and Consequences

DTIC Science & Technology

2009-09-01

ABSTRACT (maximum 200 words) Alpha contracting is a collaborative effort between a buyer and supplier during contract formation to maximize efficiency...experienced Alpha contracting teams, to include contracting officers, DCAA, DCMA, end users/ customers , program managers and acquisition directors to better...PROCESSES, ISSUES, SUCCESS FACTORS AND CONSEQUENCES ABSTRACT Alpha contracting is a collaborative effort between a buyer and supplier

Mediators and Moderators of a School-Based Cognitive-Behavioral Depression Prevention Program.

PubMed

Duong, Mylien T; Kelly, Brynn M; Haaland, Wren L; Matsumiya, Brandon; Huey, Stanley J; McCarty, Carolyn A

2016-10-01

This study tested potential moderators and mediators of an indicated depression prevention program for middle school students, Positive Thoughts and Actions (PTA). Participants were 120 students randomly assigned to PTA, or a brief, individually administered supportive intervention (Individual Support Program, or ISP). Youths completed measures of depressive symptoms at baseline, post-intervention, and 12-month follow-up. Hierarchical regression was used to test three moderators-ethnic minority status, gender, and baseline depressive symptoms-and three mediators representing functional outcomes targeted by PTA-parent-child communication, attitude towards school, and health behavior. Ethnic minority status did not moderate PTA effects at post-intervention but did moderate PTA effects at 12-month follow-up. At 12 months, PTA appeared to be more effective for White participants than ethnic minority youth. Follow-up analyses suggested this moderation effect was due to the tendency of ethnic minority youth, especially those with fewer symptoms at baseline, to drop out by 12 months. Neither gender nor baseline depressive symptoms moderated the effects of PTA. Although PTA improved health behavior and attitudes toward school, there was no evidence that any of these functional outcomes measured mediated the impact of PTA on depressive symptoms. Future directions are discussed.

Purified terephthalic acid wastewater biodegradation and toxicity.

PubMed

Zhang, Xu-xiang; Wan, Yu-qiu; Cheng, Shu-pei; Sun, Shi-lei; Zhu, Cheng-jun; Li, Wei-xin; Zhang, Xiao-chun; Wang, Gui-lin; Lu, Jian-hua; Luo, Xiang; Gu, Ji-dong

2005-01-01

The biodegradation and toxicity of the purified terephthalic acid (PTA) processing wastewater was researched at NJYZ pilot with the fusant strain Fhhh in the carrier activated sludge process (CASP). Sludge loading rate (SLR) for Fhhh to COD of the wastewater was 1.09 d(-1) and to PTA in the wastewater was 0.29 d(-1). The results of bioassay at the pilot and calculation with software Ebis3 showed that the 48h-LC50 (median lethal concentration) to Daphnia magna for the PTA concentration in the wastewater was only 1/10 of that for the chemical PTA. There were 5 kinds of benzoate pollutants and their toxicities existing in the wastewater at least. The toxicity parameter value of the pure chemical PTA cannot be used to predicate the PTA wastewater toxicity. The toxicity of the NJYZ PTA wastewater will be discussed in detail in this paper.

If I Can Do for My People, I Can Do for Myself: Examining Racial Factors for Their Influence on Goal Efficacy for Black College Students

ERIC Educational Resources Information Center

Bentley-Edwards, Keisha L.; Agonafer, Edden; Edmonston, Rashida; Flannigan, Alaina

2016-01-01

Using a sociocultural stress and coping approach, this study focuses on the antecedents of goal efficacy, or an individual's appraisal that they can achieve their goals. Despite being in college, less than half of the participants demonstrated goal efficacy. Racial factors including racial cohesion, racial dissonance and race-related stress, along…

Atherectomy offers no benefits over balloon angioplasty in tibial interventions for critical limb ischemia.

PubMed

Todd, Kevin E; Ahanchi, Sadaf S; Maurer, Christian A; Kim, Jung H; Chipman, Candice R; Panneton, Jean M

2013-10-01

Endovascular adjuncts, like atherectomy, were developed to improve outcomes of endovascular arterial interventions. The true impact of atherectomy on endovascular outcomes remains to be determined, and little data exist on the influence of atherectomy on tibial interventions. Our study compares early and late outcomes of tibial intervention with angioplasty vs atherectomy-assisted interventions. We completed a retrospective review of all tibial interventions between 2008 and 2010. Outcomes were analyzed using single and multivariate analysis, Cox regression, and Kaplan-Meier curves. Primary outcomes were primary, primary assisted, and secondary patency rates, as well as limb salvage and survival rates. Over a 2-year period, 480 tibial interventions were completed for 421 patients. Eighty-seven percent (n = 418) of interventions were performed for critical limb ischemia (CLI) and 13% (n = 62) for claudication. The CLI cohort of 418 interventions was analyzed. These patients had a mean age of 71 years with a mean follow-up time of 16 ± 15 months (range, 0-59 months). Of the 418 interventions, 339 underwent percutaneous transluminal angioplasty (PTA): 333 PTA alone, six PTA + stent. The remaining 79 interventions received atherectomy: 33 laser, 13 directional, and 33 orbital either alone or in conjunction with PTA (11 atherectomy only, 68 atherectomy + PTA). The groups did not differ significantly in terms of demographics, risk factors, or technical success. The atherectomy group had more TASC B lesions (54% vs 38%; P = .013), while the PTA-alone group had more TASC D lesions (25% vs 13%; P = .004). TASC A and C lesions did not differ significantly between the groups. No significant differences existed with respect to the early (30-day) outcomes of loss of patency (11% vs 13%; P = .699), complications (8% vs 13%; P = .292), or major amputation (17% vs 13%; P = .344) in the PTA-alone group vs the atherectomy-assisted group. Kaplan-Meier analysis revealed no difference

Antecedents and consequences of customer-company identification: expanding the role of relationship marketing.

PubMed

Ahearne, Michael; Bhattacharya, C B; Gruen, Thomas

2005-05-01

This article presents an empirical test of organizational identification in the context of customer-company (C-C) relationships. It investigates whether customers identify with companies and what the antecedents and consequences of such identification are. The model posits that perceived company characteristics, construed external image, and the perception of the company's boundary-spanning agent lead to C-C identification. In turn, such identification is expected to impact both in-role behavior (i.e., product utilization) as well as extra-role behavior (i.e., citizenship). The model was tested in a consultative selling context of pharmaceutical sales reps calling on physicians. Results from the empirical test indicated that customers do indeed identify with organizations and that C-C identification positively impacts both product utilization behavior and extra-role behavior even when the effect of brand perception is accounted for. Second, the study found that the organization's characteristics as well as the salesperson's characteristics contributed to the development of C-C identification.

Mental toughness in sport: motivational antecedents and associations with performance and psychological health.

PubMed

Mahoney, John W; Gucciardi, Daniel F; Ntoumanis, Nikos; Mallett, Cliff J; Mallet, Cliff J

2014-06-01

We argue that basic psychological needs theory (BPNT) offers impetus to the value of mental toughness as a mechanism for optimizing human functioning. We hypothesized that psychological needs satisfaction (thwarting) would be associated with higher (lower) levels of mental toughness, positive affect, and performance and lower (higher) levels of negative affect. We also expected that mental toughness would be associated with higher levels of positive affect and performance and lower levels of negative affect. Further, we predicted that coaching environments would be related to mental toughness indirectly through psychological needs and that psychological needs would indirectly relate with performance and affect through mental toughness. Adolescent cross-country runners (136 male and 85 female, M(age) = 14.36) completed questionnaires pertaining to BPNT variables, mental toughness, and affect. Race times were also collected. Our findings supported our hypotheses. We concluded that BPNT is generative in understanding some of the antecedents and consequences of mental toughness and is a novel framework useful for understanding mental toughness.

Percutaneous lower-extremity arterial interventions with primary balloon angioplasty versus Silverhawk atherectomy and adjunctive balloon angioplasty: randomized trial.

PubMed

Shammas, Nicolas W; Coiner, Denise; Shammas, Gail A; Dippel, Eric J; Christensen, Lori; Jerin, Michael

2011-09-01

Target lesion revascularization (TLR) with primary percutaneous transluminal angioplasty (PTA) versus SilverHawk atherectomy and adjunctive PTA of de novo infrainguinal disease has not been well defined. This study was conducted to compare the two approaches. In this prospective, two-center randomized trial of PTA versus atherectomy of infrainguinal vessels, the primary endpoint of TLR was evaluated at 1 year. Secondary endpoints included the rate of "bailout" stent placement for suboptimal acute angiographic results and the rate of target vessel revascularization (TVR). Fifty-eight patients were included in the study. Of these, 29 (36 vessels) were randomized to the atherectomy arm and 29 (48 vessels) to the PTA arm. Final acute angiographic success rates were 100% in the PTA arm and 97.2% in the atherectomy arm (P value not significant). There was no statistical difference in TLR (16.7% vs 11.1%) or TVR (21.4% vs 11.1%) between the PTA and atherectomy groups, respectively. Bailout stent placement was performed in 18 of 29 patients (62.1%) in the PTA arm and eight of 29 patients (27.6%) in the atherectomy arm (P = .017). Major adverse events were similar between the PTA and atherectomy arms. Finally, when embolic filter protection was used, distal macroembolization occurred in 11 of 17 patients (64.7%) treated with atherectomy versus none of 10 in the PTA group (P < .001). TLR and TVR at 1 year were statistically similar in atherectomy and primary PTA. Atherectomy reduced the need for bailout stent placement compared with primary PTA. Copyright © 2011 SIR. Published by Elsevier Inc. All rights reserved.

Silicone Stent Placement for Primary Tracheal Amyloidosis Accompanied by Cartilage Destruction

PubMed Central

Ryu, Duck Hyun; Eom, Jung Seop; Jeong, Ho Jung; Kim, Jung Hoon; Lee, Ji Eun; Jun, Ji Eun; Song, Dae Hyun; Han, Joungho

2014-01-01

Primary tracheal amyloidosis (PTA) can lead to airway obstructions, and patients with severe PTA should undergo bronchoscopic interventions in order to maintain airway patency. Focal airway involvements with amyloidosis can only be treated with mechanical dilatation. However, the PTA with diffused airway involvements and concomitant cartilage destructions requires stent placement. Limited information regarding the usefulness of silicone stents in patients with PTA has been released. Therefore, we report a case of diffused PTA with tracheomalacia causing severe cartilage destruction, which is being successfully managed with bronchoscopic interventions and silicone stent placements. PMID:25024724

Silicone stent placement for primary tracheal amyloidosis accompanied by cartilage destruction.

PubMed

Ryu, Duck Hyun; Eom, Jung Seop; Jeong, Ho Jung; Kim, Jung Hoon; Lee, Ji Eun; Jun, Ji Eun; Song, Dae Hyun; Han, Joungho; Kim, Hojoong

2014-06-01

Primary tracheal amyloidosis (PTA) can lead to airway obstructions, and patients with severe PTA should undergo bronchoscopic interventions in order to maintain airway patency. Focal airway involvements with amyloidosis can only be treated with mechanical dilatation. However, the PTA with diffused airway involvements and concomitant cartilage destructions requires stent placement. Limited information regarding the usefulness of silicone stents in patients with PTA has been released. Therefore, we report a case of diffused PTA with tracheomalacia causing severe cartilage destruction, which is being successfully managed with bronchoscopic interventions and silicone stent placements.

Moral disengagement in ethical decision making: a study of antecedents and outcomes.

PubMed

Detert, James R; Treviño, Linda Klebe; Sweitzer, Vicki L

2008-03-01

This article advances understanding of the antecedents and outcomes of moral disengagement by testing hypotheses with 3 waves of survey data from 307 business and education undergraduate students. The authors theorize that 6 individual differences will either increase or decrease moral disengagement, defined as a set of cognitive mechanisms that deactivate moral self-regulatory processes and thereby help to explain why individuals often make unethical decisions without apparent guilt or self-censure (Bandura, 1986). Results support 4 individual difference hypotheses, specifically, that empathy and moral identity are negatively related to moral disengagement, while trait cynicism and chance locus of control orientation are positively related to moral disengagement. Two additional locus of control orientations are not significantly related to moral disengagement. The authors also hypothesize and find that moral disengagement is positively related to unethical decision making. Finally, the authors hypothesize that moral disengagement plays a mediating role between the individual differences they studied and unethical decisions. Their results offer partial support for these mediating hypotheses. The authors discuss the implications of these findings for future research and for practice. Copyright 2008 APA

[Consensus diagnosis and treatment of arterial intermittent claudication. Central Guidance Organization for Peer Review].

PubMed

Kitslaar, P J

1997-12-06

Intermittent claudication is an indicator of increased risk of cardiac and cerebrovascular morbidity and mortality and as such a reason to look for modifiable risk factors for atherosclerosis. A vascular anamnesis and physical examination can reliably exclude presence of peripheral arterial occlusive disease in the lower extremities, but cannot reliably demonstrate its presence. Certainty about presence or absence of peripheral arterial occlusive disease can be obtained by determination of an ankle-brachial blood pressure index. The main method for the diagnosis of severity and localisation of stenoses and occlusions in the arteries to the legs is the echo-Doppler (duplex) examination. With this method the feasibility of percutaneous transluminal angioplasty (PTA) can also be determined. Consequently, angiography has lost importance as a diagnostic method and is only still indicated as part of an interventional treatment (operation or PTA). Treatment should be aimed at both amelioration of symptoms and reduction of risk factors for atherosclerosis. A key-stone of the treatment is cessation of smoking. The role of pharmacotherapy in reducing symptomatology is only limited. Walking exercise can have a positive effect on walking distance and should always be tried. PTA is the treatment modality of first choice for stenoses in the aortoiliac and femoropopliteal arteries. For segmental occlusions in the iliac pathway, also recanalisation by means of PTA (in combination with stent placement) is a justifiable treatment option. In all other cases operative revascularisations give good functional results. Invasive treatments for patients with intermittent claudication should be performed within a multidisciplinary team.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Barral, M., E-mail: matthias-barral@yahoo.fr; Auperin, A., E-mail: anne.auperin@gustaveroussy.fr; Hakime, A., E-mail: thakime@yahoo.com

ObjectiveTo evaluate prognostic factors associated with local control and disease-free-survival (DFS) of oligometastatic breast cancer patients treated by percutaneous thermal ablation (PTA).Materials and MethodsSeventy-nine consecutive patients (54.5 ± 11.2 years old) with 114 breast cancer metastases (28.9 ± 16.1 mm in diameter), involving the lungs, the liver, and/or the bone, were treated using PTA with a curative intent. The goal was to achieve a complete remission in association with systemic chemotherapy and hormonal therapy. We retrospectively evaluated the prognostic factors associated with 1- and 2-year local control and the 1- and 2-year DFS rates.ResultsThe 1- and 2-year local control rates were 83.0 and 76.1 %, respectively. Tumormore » burden was associated with a poorer outcome for local control after PTA (HR 1.027 by additional millimeter, p = 0.026; >4 cm HR 3.90). The 1- and 2-year DFS rates were 54.2 and 30.4 %, respectively. In multivariate analysis, triple-negative histological subtype and increased size of treated metastases were associated with a poorer DFS (HR 2.22; 95 % CI [1.13–4.36]; p = 0.02 and HR 2.43; 95 % CI [1.22–4.82]; p = 0.011, respectively).ConclusionPTA is effective for local control of breast cancer oligometastases. Tumor burden >4 cm and triple-negative histological subtype are associated with a poorer outcome.« less

The antecedents, attributes and consequences of trust among nurses and nurse managers: a concept analysis.

PubMed

McCabe, T J; Sambrook, Sally

2014-05-01

Although trust has been investigated in the health context, limited research explores nurse and nurse manager perceptions of trust. To explore the concept of trust amongst nurses and nurse managers at individual, interpersonal and organisational levels. Our paper reports the findings from an interpretivist study conducted within the British National Health Service, involving thirty-nine semi-structured interviews with nurses and nurse managers. Large acute and small community organisation within the British National Health Service. 28 nurses and 11 nurse managers working within an Acute and a Community sector organisation - 20 and 19 in each organisation. Participants were selected through a process of purposive sampling, reflecting variations in terms of age, grade, ward and tenure. We utilise a concept analysis framework in exploring the antecedents, attributes and consequences of trust amongst nurses and nurse managers at individual, interpersonal and organisational levels. Key findings suggest that trust is formed within the immediate ward environment, and is significantly influenced by the role of line manager. Other positively influencing factors include professionalism and commitment to the nursing profession. These form the basis for the teamwork, delegation, support, open communication systems, confidentiality and discretion essential to delivering quality patient care. Negatively influencing factors include new management concepts, practices and styles overseen by managers recruited from the private sector. New management concepts were associated with reductions in the number of qualified nurses and increasing numbers of untrained nursing staff, reduced direct patient contact, less opportunities for professional training and development and deteriorating terms and conditions of employment. Our findings offer insight for managers, nurses and human resource practitioners to help build high trust relationships in a health care context. Of particular import

Prediction of behavioural and cognitive deficits in patients with traumatic brain injury at an acute rehabilitation setting.

PubMed

de Guise, E; LeBlanc, J; Feyz, M; Lamoureux, J; Greffou, S

2017-01-01

The goal of this study was to identify factors that would predict short-term neuropsychological outcome in patients with traumatic brain injury (TBI) hospitalized in an acute rehabilitation setting. Data was collected in the context of an acute early rehabilitation setting of a trauma centre. A brief neuropsychological assessment was carried out for 348 patients within a month following their trauma. Length of post-traumatic amnesia (PTA) was the best predictor of behavioural, memory and executive function variables within a month post TBI. The odds of being agitated, labile, irritable and disinhibited at one month post trauma were almost six times higher for those with PTA that lasted more than 7 days compared to those with a PTA of less than 24 hours. Also, the odds of having a higher mental manipulation score (less significant executive function impairment) were almost two times lower for those with frontal lesions, and three to six times lower for those with PTA of more than 24 hours. In addition, TBI severity, education and age were considered good predictors of some aspects of neuropsychological outcome. This model may help clinicians and administrators recognize the probable post-traumatic deficits as quickly as possible and to plan interventions as well as post-acute discharge orientation accordingly and early on.

Speech pathologists' current practice with cognitive-communication assessment during post-traumatic amnesia: a survey.

PubMed

Steel, Joanne; Ferguson, Alison; Spencer, Elizabeth; Togher, Leanne

2013-01-01

To investigate speech pathologists' current practice with adults who are in post-traumatic amnesia (PTA). Speech pathologists with experience of adults in PTA were invited to take part in an online survey through Australian professional email/internet-based interest groups. Forty-five speech pathologists responded to the online survey. The majority of respondents (78%) reported using informal, observational assessment methods commencing at initial contact with people in PTA or when patients' level of alertness allowed and initiating formal assessment on emergence from PTA. Seven respondents (19%) reported undertaking no assessment during PTA. Clinicians described using a range of techniques to monitor cognitive-communication during PTA, including static, dynamic, functional and impairment-based methods. The study confirmed that speech pathologists have a key role in the multidisciplinary team caring for the person in PTA, especially with family education and facilitating interactions with the rehabilitation team and family. Decision-making around timing and means of assessment of cognitive-communication during PTA appeared primarily reliant on speech pathologists' professional experience and the culture of their workplace. The findings support the need for further research into the nature of cognitive-communication disorder and resolution over this period.

Heteropoly acid encapsulated into zeolite imidazolate framework (ZIF-67) cage as an efficient heterogeneous catalyst for Friedel–Crafts acylation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ammar, Muhammad; Jiang, Sai; Ji, Shengfu, E-mail: jisf@mail.buct.edu.cn

2016-01-15

A new strategy has been developed for the encapsulation of the phosphotungstic heteropoly acid (H{sub 3}PW{sub 12}O{sub 40} denoted as PTA) into zeolite imidazolate framework (ZIF-67) cage and the PTA@ZIF-67(ec) catalysts with different PTA content were prepared. The structure of the catalysts was characterized by XRD, BET, SEM, FT-IR, ICP-AES and TG. The catalytic activity and recovery properties of the catalysts for the Friedel-Crafts acylation of anisole with benzoyl chloride were evaluated. The results showed that 14.6–31.7 wt% PTA were encapsulated in the ZIF-67 cage. The PTA@ZIF-67(ec) catalysts had good catalytic activity for Friedel-Crafts acylation. The conversion of anisole canmore » reach ~100% and the selectivity of the production can reach ~94% over 26.5 wt% PTA@ZIF-67(ec) catalyst under the reaction condition of 120 °C and 6 h. After reaction, the catalyst can be easily separated from the reaction mixture by the centrifugation. The recovered catalyst can be reused five times and the selectivity can be kept over 90%. - Graphical abstract: The PTA@ZIF-67 catalysts with different PTA content were prepared by encapsulating the PTA into ZIF-67 cage and the as-synthesized catalysts exhibited good catalytic activity for the Friedel–Craft acylation of anisole with benzoyl chloride.« less

Antenatal antecedents of a small head circumference at age 24-months post-term equivalent in a sample of infants born before the 28th post-menstrual week.

PubMed

Leviton, Alan; Kuban, Karl; Allred, Elizabeth N; Hecht, Jonathan L; Onderdonk, Andrew; O'Shea, T Michael; McElrath, Thomas; Paneth, Nigel

2010-08-01

Little is known about the antecedents of microcephaly in early childhood among children born at extremely low gestational age. To identify some of the antecedents of microcephaly at age two years among children born before the 28th week of gestation. Observational cohort study. 1004 infants born before the 28th week of gestation. Head circumference Z-scores of <-2 and >or=-2, <-1. Risk of microcephaly and a less severely restricted head circumference decreased monotonically with increasing gestational age. After adjusting for gestational age and other potential confounders, the risk of microcephaly at age 2 years was increased if microcephaly was present at birth [odds ratio: 8.8 ((95% confidence interval: 3.7, 21)], alpha hemolytic Streptococci were recovered from the placenta parenchyma [2.9 (1.2, 6.9)], the child was a boy [2.8 (1.6, 4.9)], and the child's mother was not married [2.5 (1.5, 4.3)]. Antecedents associated not with microcephaly, but with a less extreme reduction in head circumference were recovery of Propionibacterium sp from the placenta parenchyma [2.9 (1.5, 5.5)], tobacco exposure [2.0 (1.4, 3.0)], and increased syncytial knots in the placenta [2.0 (1.2, 3.2)]. Although microcephaly at birth predicts a small head circumference at 2 years among children born much before term, pregnancy and maternal characteristics provide supplemental information about the risk of a small head circumference years later. Two findings appear to be novel. Tobacco exposure during pregnancy, and organisms recovered from the placenta predict reduced head circumference at age two years. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.

Antenatal antecedents of a small head circumference at age 24-months post-term equivalent in a sample of infants born before the 28th post-menstrual week

PubMed Central

Leviton, Alan; Kuban, Karl; Allred, Elizabeth N.; Hecht, Jonathan L.; Onderdonk, Andrew; O'Shea, T. Michael; McElrath, Thomas; Paneth, Nigel

2010-01-01

Background Little is known about the antecedents of microcephaly in early childhood among children born at extremely low gestational age. Aim To identify some of the antecedents of microcephaly at age two years among children born before the 28th week of gestation. Study design Observational cohort study. Subjects 1004 infants born before the 28th week of gestation. Outcome measures Head circumference Z-scores of <−2 and ≥−2, <−1. Results Risk of microcephaly and a less severely restricted head circumference decreased monotonically with increasing gestational age. After adjusting for gestational age and other potential confounders, the risk of microcephaly at age 2 years was increased if microcephaly was present at birth [odds ratio: 8.8 ((95% confidence interval: 3.7, 21)], alpha hemolytic Streptococci were recovered from the placenta parenchyma [2.9 (1.2, 6.9)], the child was a boy [2.8 (1.6, 4.9)], and the child's mother was not married [2.5 (1.5, 4.3)]. Antecedents associated not with microcephaly, but with a less extreme reduction in head circumference were recovery of Propionibacterium sp from the placenta parenchyma [2.9 (1.5, 5.5)], tobacco exposure [2.0 (1.4, 3.0)], and increased syncytial knots in the placenta [2.0 (1.2, 3.2)]. Conclusions Although microcephaly at birth predicts a small head circumference at 2 years among children born much before term, pregnancy and maternal characteristics provide supplemental information about the risk of a small head circumference years later. Two findings appear to be novel. Tobacco exposure during pregnancy, and organisms recovered from the placenta predict reduced head circumference at age two years. PMID:20674197

Sustained release of anticancer agent phytic acid from its chitosan-coated magnetic nanoparticles for drug-delivery system.

PubMed

Barahuie, Farahnaz; Dorniani, Dena; Saifullah, Bullo; Gothai, Sivapragasam; Hussein, Mohd Zobir; Pandurangan, Ashok Kumar; Arulselvan, Palanisamy; Norhaizan, Mohd Esa

2017-01-01

Chitosan (CS) iron oxide magnetic nanoparticles (MNPs) were coated with phytic acid (PTA) to form phytic acid-chitosan-iron oxide nanocomposite (PTA-CS-MNP). The obtained nanocomposite and nanocarrier were characterized by powder X-ray diffraction, Fourier transform infrared spectroscopy, vibrating sample magnetometry, transmission electron microscopy, and thermogravimetric and differential thermogravimetric analyses. Fourier transform infrared spectra and thermal analysis of MNPs and PTA-CS-MNP nanocomposite confirmed the binding of CS on the surface of MNPs and the loading of PTA in the PTA-CS-MNP nanocomposite. The coating process enhanced the thermal stability of the anticancer nanocomposite obtained. X-ray diffraction results showed that the MNPs and PTA-CS-MNP nanocomposite are pure magnetite. Drug loading was estimated using ultraviolet-visible spectroscopy and showing a 12.9% in the designed nanocomposite. Magnetization curves demonstrated that the synthesized MNPs and nanocomposite were superparamagnetic with saturation magnetizations of 53.25 emu/g and 42.15 emu/g, respectively. The release study showed that around 86% and 93% of PTA from PTA-CS-MNP nanocomposite could be released within 127 and 56 hours by a phosphate buffer solution at pH 7.4 and 4.8, respectively, in a sustained manner and governed by pseudo-second order kinetic model. The cytotoxicity of the compounds on HT-29 colon cancer cells was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The HT-29 cell line was more sensitive against PTA-CS-MNP nanocomposite than PTA alone. No cytotoxic effect was observed on normal cells (3T3 fibroblast cells). This result indicates that PTA-CS-MNP nanocomposite can inhibit the proliferation of colon cancer cells without causing any harm to normal cell.

A Study of the Antecedents and Consequences of Members' Helping Behaviors in Online Community

NASA Astrophysics Data System (ADS)

Chu, Kuo-Ming

Despite the growing popularity of online communities, there are a major gap between practitioners and academicians as to how to share information and knowledge among members of these groups. However, none of the previous studies have integrated these variables into a more comprehensive framework. Thus more validations are required the aim of this paper is to develop a theoretical model that enables us to examine the antecedents and consequences effects of members’ helping behavior in online communities. The moderating effects of the sense of community on the relationships between members’ helping behaviors on information sharing and knowledge contribution are also evaluated. A complete model is developed for empirical testing. Using Yahoo’s members as the samples of this study, the empirical results suggested that online communities members’ helping behavior represents a large pool of product know-how. They seem to be a promising source of innovation capabilities for new product development.

Oral Microbiota Shift after 12-Week Supplementation with Lactobacillus reuteri DSM 17938 and PTA 5289; A Randomized Control Trial

PubMed Central

Romani Vestman, Nelly; Chen, Tsute; Lif Holgerson, Pernilla; Öhman, Carina; Johansson, Ingegerd

2015-01-01

Background Lactobacillus spp. potentially contribute to health by modulating bacterial biofilm formation, but their effects on the overall oral microbiota remain unclear. Methods and Findings Oral microbiota was characterized via 454-pyrosequencing of the 16S rDNA hypervariable region V3-V4 after 12 weeks of daily Lactobacillus reuteri DSM 17938 and PTA 5289 consumption. Forty-four adults were assigned to a test group (n = 22) that received lactobacilli lozenges (108 CFU of each strain/lozenge) or a control group that received placebo (n = 22). Presence of L. reuteri was confirmed by cultivation and species specific PCR. Tooth biofilm samples from 16 adults before, during, and after exposure were analyzed by pyrosequencing. A total of 1,310,292 sequences were quality filtered. After removing single reads, 257 species or phylotypes were identified at 98.5% identity in the Human Oral Microbiome Database. Firmicutes, Bacteroidetes, Fusobacteria, Proteobacteria, and Actinobacteria were the most abundant phyla. Streptococcus was the most common genus and the S. oralis/S. mitis/S. mitis bv2/S. infantis group comprised the dominant species. The number of observed species was unaffected by L. reuteri exposure. However, subjects who had consumed L. reuteri were clustered in a principal coordinates analysis relative to scattering at baseline, and multivariate modeling of pyrosequencing microbiota, and culture and PCR detected L. reuteri separated baseline from 12-week samples in test subjects. L. reuteri intake correlated with increased S. oralis/S. mitis/S. mitis bv2/S. infantis group and Campylobacter concisus, Granulicatella adiacens, Bergeyella sp. HOT322, Neisseria subflava, and SR1 [G-1] sp. HOT874 detection and reduced S. mutans, S. anginosus, N. mucosa, Fusobacterium periodicum, F. nucleatum ss vincentii, and Prevotella maculosa detection. This effect had disappeared 1 month after exposure was terminated. Conclusions L. reuteri consumption did not affect species

Evaluation of the risk of noise-induced hearing loss among unscreened male industrial workers.

PubMed

Prince, Mary M; Gilbert, Stephen J; Smith, Randall J; Stayner, Leslie T

2003-02-01

Variability in background risk and distribution of various risk factors for hearing loss may explain some of the diversity in excess risk of noise-induced hearing loss (NIHL). This paper examines the impact of various risk factors on excess risk estimates of NIHL using data from the 1968-1972 NIOSH Occupational Noise and Hearing Survey (ONHS). Previous analyses of a subset of these data focused on 1172 highly "screened" workers. In the current analysis, an additional 894 white males (609 noise-exposed and 285 controls), who were excluded for various reasons (i.e., nonoccupational noise exposure, otologic or medical conditions affecting hearing, prior occupational noise exposure) have been added 2066) to assess excess risk of noise-induced material impairment in an unscreened population. Data are analyzed by age, duration of exposure, and sound level (8-h TWA) for four different definitions of noise-induced hearing impairment, defined as the binaural pure-tone average (PTA) hearing threshold level greater than 25 dB for the following frequencies: (a) 1-4 kHz (PTA1234), (b) 1-3 kHz (PTA123), (c) 0.5, 1, and 2 kHz (PTA512), and (d) 3, 4, and 6 kHz (PTA346). Results indicate that populations with higher background risks of hearing loss may show lower excess risks attributable to noise relative to highly screened populations. Estimates of lifetime excess risk of hearing impairment were found to be significantly different between screened and unscreened population for noise levels greater than 90 dBA. Predicted age-related risk of material hearing impairment in the ONHS unscreened population was similar to that predicted from Annex B and C of ANSI S3.44 for ages less than 60 years. Results underscore the importance of understanding differential risk patterns for hearing loss and the use of appropriate reference (control) populations when evaluating risk of noise-induced hearing impairment among contemporary industrial populations.

RISK FACTORS FOR SLOW GAIT SPEED: A NESTED CASE-CONTROL SECONDARY ANALYSIS OF THE MEXICAN HEALTH AND AGING STUDY.

PubMed

Pérez-Zepeda, M U; González-Chavero, J G; Salinas-Martinez, R; Gutiérrez-Robledo, L M

2015-01-01

Physical performance tests play a major role in the geriatric assessment. In particular, gait speed has shown to be useful for predicting adverse outcomes. However, risk factors for slow gait speed (slowness) are not clearly described. To determine risk factors associated with slowness in Mexican older adults. A two-step process was adopted for exploring the antecedent risk factors of slow gait speed. First, the cut-off values for gait speed were determined in a representative sample of Mexican older adults. Then, antecedent risk factors of slow gait speed (defined using the identified cut-points) were explored in a nested, cohort case-control study. One representative sample of a cross-sectional survey for the first step and the Mexican Health and Aging Study (a cohort characterized by a 10-year follow-up). A 4-meter usual gait speed test was conducted. Lowest gender and height-stratified groups were considered as defining slow gait speed. Sociodemographic characteristics, comorbidities, psychological and health-care related variables were explored to find those associated with the subsequent development of slow gait speed. Unadjusted and adjusted logistic regression models were performed. In the final model, age, diabetes, hypertension, and history of fractures were associated with the development of slow gait speed. Early identification of subjects at risk of developing slow gait speed may halt the path to disability due to the robust association of this physical performance test with functional decline.

RISK FACTORS FOR SLOW GAIT SPEED: A NESTED CASE-CONTROL SECONDARY ANALYSIS OF THE MEXICAN HEALTH AND AGING STUDY

PubMed Central

Pérez-Zepeda, M.U.; González-Chavero, J.G.; Salinas-Martinez, R.; Gutiérrez-Robledo, L.M.

2016-01-01

Background Physical performance tests play a major role in the geriatric assessment. In particular, gait speed has shown to be useful for predicting adverse outcomes. However, risk factors for slow gait speed (slowness) are not clearly described. Objectives To determine risk factors associated with slowness in Mexican older adults. Design A two-step process was adopted for exploring the antecedent risk factors of slow gait speed. First, the cut-off values for gait speed were determined in a representative sample of Mexican older adults. Then, antecedent risk factors of slow gait speed (defined using the identified cut-points) were explored in a nested, cohort case-control study. Setting, participants One representative sample of a cross-sectional survey for the first step and the Mexican Health and Aging Study (a cohort characterized by a 10-year follow-up). Measurements A 4-meter usual gait speed test was conducted. Lowest gender and height-stratified groups were considered as defining slow gait speed. Sociodemographic characteristics, comorbidities, psychological and health-care related variables were explored to find those associated with the subsequent development of slow gait speed. Unadjusted and adjusted logistic regression models were performed. Results In the final model, age, diabetes, hypertension, and history of fractures were associated with the development of slow gait speed. Conclusions Early identification of subjects at risk of developing slow gait speed may halt the path to disability due to the robust association of this physical performance test with functional decline. PMID:26889463

Possible antecedents and consequences of self-esteem in persons with multiple sclerosis: preliminary evidence from a cross-sectional analysis.

PubMed

Dlugonski, Deirdre; Motl, Robert W

2012-02-01

Persons with multiple sclerosis (MS) have consistently reported lower levels of self-esteem compared with the general population. Despite this, very little is known about the antecedents and consequences of self-esteem in persons with MS. To examine (1) physical activity and social support as potentially modifiable correlates (i.e., antecedents) of self-esteem and (2) physical and psychological health-related quality of life as possible consequences of self-esteem in persons with MS. Participants (N = 46) wore an Actigraph accelerometer for 7 days and then completed a battery of questionnaires, including the Rosenberg Self-Esteem Scale (RSES), Multiple Sclerosis Impact Scale (MSIS-29), and Social Provisions Scale (SPS). The data were analyzed using PASW Statistics 18. Bivariate correlation analysis indicated that average daily step counts (r = .298, p = .026) and social support (r = .366, p = .007) were significantly correlated with self-esteem. Multiple linear regression analysis indicated that only social support was a significant predictor of self-esteem scores (β = .411, p = .004); pedometer steps approached significance as a predictor of self-esteem (β = .178, p = .112). Bivariate correlation analysis further indicated significant negative associations between self-esteem and physical (r = -.391, p = .004) and psychological (r = -.540, p = .0001) domains of health-related quality of life (HRQOL), indicating that higher self-esteem was associated with more positive HRQOL. Social support is a potentially modifiable variable that may be important to target when designing interventions to improve self-esteem and this might have implications for improving physical and psychological HRQOL in persons with MS.

Antecedents of teachers’ emotions in the classroom: an intraindividual approach

PubMed Central

Becker, Eva S.; Keller, Melanie M.; Goetz, Thomas; Frenzel, Anne C.; Taxer, Jamie L.

2015-01-01

Using a preexisting, but as yet empirically untested theoretical model, the present study investigated antecedents of teachers’ emotions in the classroom. More specifically, the relationships between students’ motivation and discipline and teachers’ enjoyment and anger were explored, as well as if these relationships are mediated by teachers’ subjective appraisals (goal conduciveness and coping potential). The study employed an intraindividual approach by collecting data through a diary. The sample consisted of 39 teachers who each participated with one of their 9th or 10th grade mathematics classes (N = 758 students). Both teachers and students filled out diaries for 2–3 weeks pertaining to 8.10 lessons on average (N = 316 lessons). Multilevel structural equation modeling revealed that students’ motivation and discipline explained 24% of variance in teachers’ enjoyment and 26% of variance in teachers’ anger. In line with theoretical assumptions, after introducing teachers’ subjective appraisals as a mediating mechanism into the model, the explained variance systematically increased to 65 and 61%, for teachers’ enjoyment and anger respectively. The effects of students’ motivation and discipline level on teachers’ emotions were partially mediated by teachers’ appraisals of goal conduciveness and coping potential. The findings imply that since teachers’ emotions depend to a large extent on subjective evaluations of a situation, teachers should be able to directly modify their emotional experiences during a lesson through cognitive reappraisals. PMID:26042067

Antecedents and Outcomes of Joint Trajectories of Mother-Son Conflict and Warmth during Middle Childhood and Adolescence

PubMed Central

Trentacosta, Christopher J.; Criss, Michael M.; Shaw, Daniel S.; Lacourse, Eric; Hyde, Luke W.; Dishion, Thomas J.

2011-01-01

This study investigated the development of mother-son relationship quality from ages 5 to 15 in a sample of 265 low-income families. Non-parametric random effects modeling was utilized to uncover distinct and homogeneous developmental trajectories of conflict and warmth; antecedents and outcomes of the trajectory groups also were examined. Four conflict trajectory groups and three warmth trajectory groups were identified. Difficult temperament in early childhood discriminated both conflict and warmth trajectory group membership (TGM), and adult relationship quality in early childhood was related to warmth trajectories. In addition, conflict TGM differentiated youth antisocial behavior during adolescence, and warmth trajectories predicted adolescent peer relationship quality and youth moral disengagement. Implications for socialization processes are discussed. PMID:21883153

Quality of caregiver-child play interactions with toddlers born preterm and full term: Antecedents and language outcome.

PubMed

Loi, Elizabeth C; Vaca, Kelsey E C; Ashland, Melanie D; Marchman, Virginia A; Fernald, Anne; Feldman, Heidi M

2017-12-01

Preterm birth may leave long-term effects on the interactions between caregivers and children. Language skills are sensitive to the quality of caregiver-child interactions. Compare the quality of caregiver-child play interactions in toddlers born preterm (PT) and full term (FT) at age 22months (corrected for degree of prematurity) and evaluate the degree of association between caregiver-child interactions, antecedent demographic and language factors, and subsequent language skill. A longitudinal descriptive cohort study. 39 PT and 39 FT toddlers individually matched on sex and socioeconomic status (SES). The outcome measures were dimensions of caregiver-child interactions, rated from a videotaped play session at age 22months in relation to receptive language assessments at ages 18 and 36months. Caregiver intrusiveness was greater in the PT than FT group. A composite score of child interactional behaviors was associated with a composite score of caregiver interactional behaviors. The caregiver composite measure was associated with later receptive vocabulary at 36months. PT-FT group membership did not moderate the association between caregiver interactional behavior and later receptive vocabulary. The quality of caregiver interactional behavior had similar associations with concurrent child interactional behavior and subsequent language outcome in the PT and FT groups. Greater caregiver sensitivity/responsiveness, verbal elaboration, and less intrusiveness support receptive language development in typically developing toddlers and toddlers at risk for language difficulty. Copyright © 2017 Elsevier B.V. All rights reserved.

Effects of antecedent fermentative and respiratory growth on the detection of chloramine-stressed Escherichia coil and Salmonella typhimurium.

PubMed

Thunberg, R L; Sexstone, A J; Calabrese, J P; Bissonnette, G K

2001-08-01

In vitro laboratory studies were performed to assess the effects of antecedent growth conditions on the recovery of Escherichia coli ATCC 25922 and Salmonella typhimurium ATCC 14028 following chloramine disinfection. Six- and 18-h cultures of each organism were grown under aerobic, fermentative, and nitrate-reducing conditions prior to disinfection. At predetermined time intervals during a 10-min exposure to chloramine, survivors were surface plated on nonselective recovery media to determine C(n)t values. It was observed that nitrate-reducing growth predisposed the test organisms towards an increased sensitivity to chloramine stress over cells grown under fermentation or aerobic conditions (p < 0.01).

Criminal career-related factors among female robbers in the state of São Paulo, Brazil, and a presumed 'revolving-door' situation.

PubMed

Mauá, Fernando Henrique Nadalini; Baltieri, Danilo Antonio

2012-06-01

Risk-taking behaviors, family criminality, poverty, and poor parenting have been frequently associated with an earlier onset of criminal activities and a longer criminal career among male convicts. This study aims to identify factors related to the onset and recurrence of criminal behavior among female robbers in the State of São Paulo - Brazil. It was a cross-sectional study carried out inside a feminine penitentiary in São Paulo. From June 2006 to June 2010, 175 inmates convicted only for robbery were recruited to be evaluated about family antecedents of criminal conviction, alcohol and drug misuse, impulsiveness, depressive symptoms, and psychosocial features. RESULTS Having family antecedents of criminal conviction consistently predicted an earlier onset of criminal activities and a longer criminal career among female robbers. Drug use in youth and the severity of drug misuse were significantly related to the initiation and recurrence of criminal behavior, respectively. Prisons must systematically screen detainees and provide treatments for those with health problems in general. Children of inmates should obtain help to modify the negative consequences of their parents' incarceration in order to mitigate the negative consequences of pursuing this 'static' factor.

Implementing post-trial access plans for HIV prevention research.

PubMed

Paul, Amy; Merritt, Maria W; Sugarman, Jeremy

2018-05-01

Ethics guidance increasingly recognises that researchers and sponsors have obligations to consider provisions for post-trial access (PTA) to interventions that are found to be beneficial in research. Yet, there is little information regarding whether and how such plans can actually be implemented. Understanding practical experiences of developing and implementing these plans is critical to both optimising their implementation and informing conceptual work related to PTA. This viewpoint is informed by experiences with developing and implementing PTA plans for six large-scale multicentre HIV prevention trials supported by the HIV Prevention Trials Network. These experiences suggest that planning and implementing PTA often involve challenges of planning under uncertainty and confronting practical barriers to accessing healthcare systems. Even in relatively favourable circumstances where a tested intervention medication is approved and available in the local healthcare system, system-level barriers can threaten the viability of PTA plans. The aggregate experience across these HIV prevention trials suggests that simply referring participants to local healthcare systems for PTA will not necessarily result in continued access to beneficial interventions for trial participants. Serious commitments to PTA will require additional efforts to learn from future approaches, measuring the success of PTA plans with dedicated follow-up and further developing normative guidance to help research stakeholders navigate the complex practical challenges of realising PTA. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

A comparison of efficacy of endovascular versus surgical repair for the treatment of arteriovenous fistula stenosis in Taiwan.

PubMed

Fan, Szu-Shan; Chen, Chien-Wen; Lu, Kuo-Cheng; Mao, Hung-Chung; Chen, Miao-Pei; Chou, Chu-Lin

2017-05-15

Percutaneous transluminal angioplasty (PTA) and fistula reconstruction surgery are therapeutic options for vascular access occlusion in hemodialysis patients. However, owing to its convenience, PTA has gradually become the preferred therapeutic option for fistula stenosis or occlusion. This study investigated the effects of the two therapeutic methods on the vascular access maintenance duration (number of days) and maintenance costs of fistula in dialysis patients from different dialysis units. In this study, 544 hemodialysis patients from 2 dialysis units in a teaching hospital in the southern area of Taiwan were included in the analysis of the frequency of PTA or revascularization surgery and the use of related medical resources by conducting a retrospective chart review. The frequency of PTA in the patients undergoing long-term hemodialysis was not significantly associated with their demographic characteristics. The efficacy of PTA has declined with shorter maintenance duration with increasing PTA frequency. The cost profile of PTA was more expensive than that of fistula revascularization surgery. In this study, PTA was found to be just a temporary solution for fistula thrombosis, whereas fistula reconstruction surgery is inexpensive and improves survival time. Therefore, dialysis units should establish an appropriate standard of care to avoid over-reliance on PTA in order to reduce the fistula failure rate, improve the dialysis efficacy, and reduce the psychological stress in patients, as well as to reduce the maintenance costs and rationalize the medical expenses.

Evaluating the SCC resistance of underwater welds in sodium tetrathionate

DOE Office of Scientific and Technical Information (OSTI.GOV)

White, R.A.; Angeliu, T.M.

1997-12-01

The susceptibility of welds to stress corrosion cracking (SCC) is enhanced by the surface residual tensile stresses generated by the typical welding process. However, underwater plasma transferred arc (PTA) welding has been shown to produce compressive surface residual stresses, an encouraging result if repairs of cracked boiling water reactor (BWR) components are to be made without further endangering them to SCC. This program was designed to verify that underwater PTA welds are resistant to SCC and to determine if underwater PTA welding could mitigate SCC in potentially susceptible welds. This was achieved by exposing various welds on solution annealed (SA)more » and SA + thermally sensitized 304 stainless steel at 25 C in a solution of 1.5 gm/liter of sodium sulfide added to 0.05M sodium tetrathionate, titrated to a pH of 1.25 with H{sub 2}SO{sub 4}. The autogeneous welds were produced using gas tungsten arc (GTA) and plasma transferred arc (PTA) welding under atmospheric conditions, and PTA welding underwater. After 1 hour of sodium tetrathionate exposure, GTA and air PTA welds exhibited SCC while the underwater PTA weld heat affected zones were more resistant. Underwater PTA welds bisecting a GTA weld eliminated the cracking in the GTA weld heat affected zone under certain conditions. The lack of IG cracking in the region influenced by the underwater PTA weld is consistent with the measurement of compressive surface residual stresses inherent to the underwater welding process.« less

Physical therapists' perceptions of the roles of the physical therapist assistant.

PubMed

Robinson, A J; McCall, M; DePalma, M T; Clayton-Krasinski, D; Tingley, S; Simoncelli, S; Harnish, L

1994-06-01

This longitudinal study investigated physical therapists' perceptions of the roles of physical therapist assistants (PTAs). In 1986, a questionnaire describing 79 physical therapy activities was distributed to a random sample (n = 400) of physical therapists derived from the American Physical Therapy Association (APTA) membership. In 1992, a similar questionnaire was distributed to a representative sample (n = 400) of physical therapists derived from the APTA membership. Response rates were 53% and 55% in 1986 and 1992, respectively. Respondents indicated whether each activity was included in the documentation describing PTA roles. Results revealed considerable agreement between therapists' perceptions of PTA roles and those outlined by PTA practice guidelines, and these perceptions changed little over time. Discriminant analyses suggested that therapists' perceptions of PTA roles were, in general, not predicted by supervisory experience with PTAs, therapist experience, or content of entry-level professional education curricula. Generally, therapists' perceptions of PTA roles are consistent with published practice guidelines. Therapists' perceptions on selected activities, however, were incongruent with PTA practice guidelines, suggesting the potential for inefficient or inappropriate utilization of the PTA in the delivery of selected services.

Holocene reef growth over irregular Pleistocene karst confirms major influence of hydrodynamic factors on Holocene reef development

NASA Astrophysics Data System (ADS)

Salas-Saavedra, Marcos; Dechnik, Belinda; Webb, Gregory E.; Webster, Jody M.; Zhao, Jian-xin; Nothdurft, Luke D.; Clark, Tara R.; Graham, Trevor; Duce, Stephanie

2018-01-01

Many factors govern reef growth through time, but their relative contributions are commonly poorly known. A prime example is the degree to which modern reef morphology is controlled by contemporary hydrodynamic settings or antecedent topography. Fortunately, reefs record essential information for interpreting palaeoclimate and palaeoenvironment within their structure as they accrete in response to environmental change. Five new cores recovered from the margin of Heron Reef, southern Great Barrier Reef (GBR), provide new insights into Holocene reef development and relationships between Holocene reefs and Pleistocene antecedent topography, suggesting much more irregular underlying topography than expected based on the configuration of the overlying modern reef margin. Cores were recovered to depths of 30 m and 94 new 230Th ages document growth between 8408 ± 24 and 2222 ± 16 yrs. BP. One core penetrated Pleistocene basement at ∼15.3 m with Holocene reef growth initiated by ∼8.4 ka BP. However, 1.83 km west along the same smooth margin, four cores failed to penetrate Pleistocene basement at depths between 20 and 30 m, suggesting that the margin at this location overlies a karst valley, or alternatively, the antecedent platform does not extend there. A 48 m-long margin-perpendicular transect of three cores documents the filling of this topographic low, at least 30 m beneath the current reef top, with seaward lateral accretion at a rate of 34.3 m/ka. Cores indicate steady vertical and lateral accretion between 3.2 and 1.8 ka BP with no evidence of the hiatus in reef flat progradation seen in most other offshore reefs of the GBR at that time. These cores suggest that the relative protection afforded by the valley allowed for unconsolidated sediment to accumulate, enabling continuous progradation even when other areas of the reef flat appear to have 'turned off'. Additionally, the cores suggest that although reefs in the southern GBR clearly owe their location to

Not All Skepticism Is Equal: Exploring the Ideological Antecedents of Science Acceptance and Rejection

PubMed Central

Rutjens, Bastiaan T.; Sutton, Robbie M.; van der Lee, Romy

2017-01-01

Many topics that scientists investigate speak to people’s ideological worldviews. We report three studies—including an analysis of large-scale survey data—in which we systematically investigate the ideological antecedents of general faith in science and willingness to support science, as well as of science skepticism of climate change, vaccination, and genetic modification (GM). The main predictors are religiosity and political orientation, morality, and science understanding. Overall, science understanding is associated with vaccine and GM food acceptance, but not climate change acceptance. Importantly, different ideological predictors are related to the acceptance of different scientific findings. Political conservatism best predicts climate change skepticism. Religiosity, alongside moral purity concerns, best predicts vaccination skepticism. GM food skepticism is not fueled by religious or political ideology. Finally, religious conservatives consistently display a low faith in science and an unwillingness to support science. Thus, science acceptance and rejection have different ideological roots, depending on the topic of investigation. PMID:29191107

Bombing Alone: Tracing the Motivations and Antecedent Behaviors of Lone-Actor Terrorists*,†,‡

PubMed Central

Gill, Paul; Horgan, John; Deckert, Paige

2014-01-01

This article analyzes the sociodemographic network characteristics and antecedent behaviors of 119 lone-actor terrorists. This marks a departure from existing analyses by largely focusing upon behavioral aspects of each offender. This article also examines whether lone-actor terrorists differ based on their ideologies or network connectivity. The analysis leads to seven conclusions. There was no uniform profile identified. In the time leading up to most lone-actor terrorist events, other people generally knew about the offender’s grievance, extremist ideology, views, and/or intent to engage in violence. A wide range of activities and experiences preceded lone actors’ plots or events. Many but not all lone-actor terrorists were socially isolated. Lone-actor terrorists regularly engaged in a detectable and observable range of activities with a wider pressure group, social movement, or terrorist organization. Lone-actor terrorist events were rarely sudden and impulsive. There were distinguishable behavioral differences between subgroups. The implications for policy conclude this article. PMID:24313297

Attendance dynamics at work: the antecedents and correlates of presenteeism, absenteeism, and productivity loss.

PubMed

Johns, Gary

2011-10-01

Presenteeism is attending work when ill. This study examined the antecedents and correlates of presenteeism, absenteeism, and productivity loss attributed to presenteeism. Predictors included work context, personal characteristics, and work experiences. Business school graduates employed in a variety of work positions (N = 444) completed a Web-based survey. Presenteeism was positively associated with task significance, task interdependence, ease of replacement, and work to family conflict and negatively associated with neuroticism, equity, job security, internal health locus of control, and the perceived legitimacy of absence. Absenteeism was positively related to task significance, perceived absence legitimacy, and family to work conflict and negatively related to task interdependence and work to family conflict. Those high on neuroticism, the unconscientious, the job-insecure, those who viewed absence as more legitimate, and those experiencing work-family conflict reported more productivity loss. Overall, the results reveal the value of a behavioral approach to presenteeism over and above a strict medical model. (PsycINFO Database Record (c) 2011 APA, all rights reserved).

Valuing the Adult Learner in E-Learning: Part One--A Conceptual Model for Corporate Settings

ERIC Educational Resources Information Center

Waight, Consuelo L.; Stewart, Barbara L.

2005-01-01

Purpose: To illustrate how the interdependence among four championing factors, five antecedents, and four moderators affect companies' efforts in valuing the adult learner in e-learning. Design/methodology/approach: A literature review was conducted to identify the championing factors, antecedents, and moderators that can assist teams in designing…

Parent-child and triadic antecedents of children's social competence: cultural specificity, shared process.

PubMed

Feldman, Ruth; Masalha, Shafiq

2010-03-01

Guided by theories of cultural participation, the authors examined mother-child, father-child, and triadic interactive behaviors in 141 Israeli and Palestinian couples and their firstborn child at 5 and 33 months as antecedents of children's social competence. Four parent-child measures (parent sensitivity, child social engagement, parental control, dyadic reciprocity) and two family-level measures (cohesion and rigidity) were coded at each age. Children's social competence was observed at child-care locations. Cultural differences were observed for parent sensitivity and child social engagement, and the large cultural differences in sensitivity observed in infancy were attenuated by the toddler age. Interactive behaviors correlated with culture-specific parenting practices, child-rearing goals, and sex-role attitudes. Mother-child reciprocity in infancy and child engagement with father and family-level cohesion at both time points predicted social competence. Maternal sensitivity in infancy facilitated social competence only among Israeli children. Paternal control in toddlerhood interfered with Israeli children's social functioning but contributed to competence among Palestinians. Results underscore the links between early relational experiences and children's adaptation to the social milieu.

Randomized controlled study of excimer laser atherectomy for treatment of femoropopliteal in-stent restenosis: initial results from the EXCITE ISR trial (EXCImer Laser Randomized Controlled Study for Treatment of FemoropopliTEal In-Stent Restenosis).

PubMed

Dippel, Eric J; Makam, Prakash; Kovach, Richard; George, Jon C; Patlola, Raghotham; Metzger, D Christopher; Mena-Hurtado, Carlos; Beasley, Robert; Soukas, Peter; Colon-Hernandez, Pedro J; Stark, Matthew A; Walker, Craig

2015-01-01

The purpose of this study was to evaluate the safety and efficacy of excimer laser atherectomy (ELA) with adjunctive percutaneous transluminal angioplasty (PTA) versus PTA alone for treating patients with chronic peripheral artery disease with femoropopliteal bare nitinol in-stent restenosis (ISR). Femoropopliteal stenting has shown superiority to PTA for lifestyle-limiting claudication and critical limb ischemia, although treating post-stenting artery reobstruction, or ISR, remains challenging. The multicenter, prospective, randomized, controlled EXCITE ISR (EXCImer Laser Randomized Controlled Study for Treatment of FemoropopliTEal In-Stent Restenosis) trial was conducted across 40 U.S. centers. Patients with Rutherford Class 1 to 4 and lesions of target lesion length ≥4 cm, vessel diameter 5 to 7 mm were enrolled and randomly divided into ELA + PTA and PTA groups by a 2:1 ratio. The primary efficacy endpoint was target lesion revascularization (TLR) at 6-month follow up. The primary safety endpoint was major adverse event (death, amputation, or TLR) at 30 days post-procedure. Study enrollment was stopped at 250 patients due to early efficacy demonstrated at a prospectively-specified interim analysis. A total of 169 ELA + PTA subjects (62.7% male; mean age 68.5 ± 9.8 years) and 81 PTA patients (61.7% male; mean age 67.8 ± 10.3 years) were enrolled. Mean lesion length was 19.6 ± 12.0 cm versus 19.3 ± 11.9 cm, and 30.5% versus 36.8% of patients exhibited total occlusion. ELA + PTA subjects demonstrated superior procedural success (93.5% vs. 82.7%; p = 0.01) with significantly fewer procedural complications. ELA + PTA and PTA subject 6-month freedom from TLR was 73.5% versus 51.8% (p < 0.005), and 30-day major adverse event rates were 5.8% versus 20.5% (p < 0.001), respectively. ELA + PTA was associated with a 52% reduction in TLR (hazard ratio: 0.48; 95% confidence interval: 0.31 to 0.74). The EXCITE ISR trial is the first large, prospective, randomized study

Exploring the differential impact of individual and organizational factors on organizational commitment of physicians and nurses.

PubMed

Miedaner, Felix; Kuntz, Ludwig; Enke, Christian; Roth, Bernhard; Nitzsche, Anika

2018-03-15

Physician and nursing shortages in acute and critical care settings require research on factors which might drive their commitment, an important predictor of absenteeism and turnover. However, the degree to which the commitment of a physician or a nurse is driven by individual or organizational characteristics in hospitals remains unclear. In addition, there is a need for a greater understanding of how antecedent-commitment relationships differ between both occupational groups. Based on recent findings in the literature and the results of a pilot study, we investigate the degree to which selected individual and organizational characteristics might enhance an employee's affective commitment working in the field of neonatal intensive care. Moreover, our aim is to examine the different antecedent-commitment relationships across the occupational groups of nurses and physicians. Information about individual factors affecting organizational commitment was derived from self-administered staff questionnaires, while additional information about organizational structures was taken from hospital quality reports and a self-administered survey completed by hospital department heads. Overall, 1486 nurses and 540 physicians from 66 Neonatal Intensive Care Units participated in the study. We used multilevel modeling to account for different levels of analysis. Although organizational characteristics can explain differences in an employee's commitment, the differences can be largely explained by his or her individual characteristics and work experiences. Regarding occupational differences, individual support by leaders and colleagues was shown to influence organizational commitment more strongly in the physicians' group. In contrast, the degree of autonomy in the units and perceived quality of care had a larger impact on the nurses' organizational commitment. With the growing number of hospitals facing an acute shortage of highly-skilled labor, effective strategies on the

Aldehyde-alcohol reactions catalyzed under mild conditions by chromium(III) terephthalate metal organic framework (MIL-101) and phosphotungstic acid composites.

PubMed

Bromberg, Lev; Hatton, T Alan

2011-12-01

Porous materials based on chromium(III) terephthalate metal organic frameworks (MIL-101) and their composites with phosphotungstic acid (PTA) were studied as heterogeneous acid catalysts in aldehyde-alcohol reactions exemplified by acetaldehyde-phenol (A-P) condensation and dimethylacetal formation from benzaldehyde and methanol (B-M reaction). The MIL-101 was synthesized solvothermically in water, and the MIL101/PTA composite materials were obtained by either impregnation of the already prepared MIL-101 porous matrix with phosphotungstic acid solution or by solvothermic treatment of aqueous mixtures of Cr(NO(3))(3), and terephthalic and phosphotungstic acids. The MIL101/PTA materials appeared to be effective catalysts for both A-P and B-M reactions occurring at room temperature, with half-lives ranging from 0.5 h (A-P) to 1.5-2 h (B-M) and turnover numbers over 600 for A-P and over 2900 for the B-M reaction, respectively. A synergistic effect of the strong acidic moieties (PTA) addition to mildly acidic Brønsted and Lewis acid cites of the MIL-101 was observed with the MIL101/PTA composites. The ability of the PTA and MIL101/PTA materials to strongly absorb and condense acetaldehyde vapors was discovered, with the MIL101/PTA absorbing over 10-fold its dry weight of acetaldehyde condensate at room temperature. The acetaldehyde was converted rapidly to crotonaldehyde and higher-molecular-weight compounds while in contact with MIL-101 and MIL101/PTA materials. The stability of the MIL-101 and MIL101/PTA catalysts was assessed within four cycles of the 1-day alcohol-aldehyde reactions in terms of the overall catalyst recovery, PTA or Cr content, and reaction rate constants in each cycle. The loss of the catalyst over 4 cycles was approximately 10 wt % for all tested catalysts due to the incomplete recovery and minute dissolution of the components. The reaction rates in all cycles remained unchanged and the catalyst losses stopped after the third cycle. The developed

Reliability testing of two classification systems for osteoarthritis and post-traumatic arthritis of the elbow.

PubMed

Amini, Michael H; Sykes, Joshua B; Olson, Stephen T; Smith, Richard A; Mauck, Benjamin M; Azar, Frederick M; Throckmorton, Thomas W

2015-03-01

The severity of elbow arthritis is one of many factors that surgeons must evaluate when considering treatment options for a given patient. Elbow surgeons have historically used the Broberg and Morrey (BM) and Hastings and Rettig (HR) classification systems to radiographically stage the severity of post-traumatic arthritis (PTA) and primary osteoarthritis (OA). We proposed to compare the intraobserver and interobserver reliability between systems for patients with either PTA or OA. The radiographs of 45 patients were evaluated at least 2 weeks apart by 6 evaluators of different levels of training. Intraobserver and interobserver reliability were calculated by Spearman correlation coefficients with 95% confidence intervals. Agreement was considered almost perfect for coefficients >0.80 and substantial for coefficients of 0.61 to 0.80. In patients with both PTA and OA, intraobserver reliability and interobserver reliability were substantial, with no difference between classification systems. There were no significant differences in intraobserver or interobserver reliability between attending physicians and trainees for either classification system (all P > .10). The presence of fracture implants did not affect reliability in the BM system but did substantially worsen reliability in the HR system (intraobserver P = .04 and interobserver P = .001). The BM and HR classifications both showed substantial intraobserver and interobserver reliability for PTA and OA. Training level differences did not affect reliability for either system. Both trainees and fellowship-trained surgeons may easily and reliably apply each classification system to the evaluation of primary elbow OA and PTA, although the HR system was less reliable in the presence of fracture implants. Copyright © 2015 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.

Predictors of treatment response to strengthening and stretching exercises for patellofemoral pain: An examination of patellar alignment.

PubMed

Peng, Hsien-Te; Song, Chen-Yi

2015-12-01

Closed kinetic chain and quadriceps strengthening, combined with flexibility exercises of the lower limb musculature, is a common treatment for patellofemoral pain syndrome (PFPS). The effectiveness has been well documented; however, very little is known about which factors predict treatment success. A total of 43 female subjects with PFPS participated in an eight-week progressive leg press (LP) strengthening and stretching exercise program. A decrease of 1.5 cm on a 10 cm visual analog scale (VAS) score was used as an indicator for treatment success. The baseline patellar tilt angle difference (PTA-d) due to quadriceps contraction prior to treatment was evaluated as a predictor of treatment success. The logistic regression and receiver operating characteristics (ROC) curve analysis were performed to investigate the predictive value of PTA-d. PTA-d could significantly predict the treatment success of LP strengthening and stretching exercises. The odds ratio (OR) for having an unsuccessful outcome was 1.19 (95% confidence interval (CI), 1.03-1.39, P<0.021) per degree increment of PTA-d. The most optimal cut-off value for the clinical discrimination of treatment success after LP strengthening and stretching exercise was -1.5° of PTA-d (sensitivity=0.74, specificity=0.71). The area under the ROC curve was 0.73 (standard error=0.08). Female patients with PFPS whose quadriceps contraction reduced the lateral patellar tilt prior to LP strengthening and stretching exercise treatment are more likely to experience pain relief. It seems clinically important to check dynamic patellar tilt characteristics before treatment to aid in clinical decision making. Copyright © 2014 Elsevier B.V. All rights reserved.

Sexual assault and other types of sexual harassment by workplace personnel: a comparison of antecedents and consequences.

PubMed

Harned, Melanie S; Ormerod, Alayne J; Palmieri, Patrick A; Collinsworth, Linda L; Reed, Maggie

2002-04-01

Although sexual assault by workplace personnel is widely viewed as a type of sexual harassment, little is known about whether these overlapping constructs may possess some unique characteristics. This article compares the theoretical antecedents and consequences of sexual assault by workplace personnel and other types of sexual harassment among 22,372 women employed in the U.S. military. Path analysis revealed that low sociocultural and organizational power are associated with an increased likelihood of both types of victimization. Organizational climate and job gender context are directly associated with sexual harassment but are only indirectly associated with sexual assault by workplace personnel. Both types of victimization are associated with a variety of negative outcomes, but the pattern of negative consequences differs.

Conversion of cellulose and cellobiose into sorbitol catalyzed by ruthenium supported on a polyoxometalate/metal-organic framework hybrid.

PubMed

Chen, Jinzhu; Wang, Shengpei; Huang, Jing; Chen, Limin; Ma, Longlong; Huang, Xing

2013-08-01

Cellulose and cellobiose were selectively converted into sorbitol over water-tolerant phosphotungstic acid (PTA)/metal- organic-framework-hybrid-supported ruthenium catalysts, Ru-PTA/MIL-100(Cr), under aqueous hydrogenation conditions. The goal was to investigate the relationship between the acid/metal balance of bifunctional catalysts Ru-PTA/MIL-100(Cr) and their performance in the catalytic conversion of cellulose and cellobiose into sugar alcohols. The control of the amount and strength of acid sites in the supported PTA/MIL-100(Cr) was achieved through the effective control of encapsulated-PTA loading in MIL-100(Cr). This design and preparation method led to an appropriately balanced Ru-PTA/MIL-100(Cr) in terms of Ru dispersion and hydrogenation capacity on the one hand, and acid site density of PTA/MIL-100(Cr) (responsible for acid-catalyzed hydrolysis) on the other hand. The ratio of acid site density to the number of Ru surface atoms (nA /nRu ) of Ru-PTA/MIL-100(Cr) was used to monitor the balance between hydrogenation and hydrolysis functions; the optimum balance between the two catalytic functions, that is, 8.84PTA/MIL-100(Cr) catalyst with loadings of 3.2 wt % for Ru and 16.7 wt % for PTA. This research thus opens new perspectives for the rational design of acid/metal bifunctional catalysts for biomass conversion. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Long-Term Outcomes After Percutaneous Lower Extremity Arterial Interventions With Atherectomy vs. Balloon Angioplasty　- Propensity Score-Matched Registry.

PubMed

Janas, Adam; Buszman, Piotr P; Milewski, Krzysztof P; Wiernek, Szymon; Janas, Ksenia; Pruski, Maciej; Wojakowski, Wojciech; Błachut, Aleksandra; Picheta, Wojciech; Buszman, Pawel; Kiesz, Stefan

2017-02-24

The impact of endovascular revascularization of the lower extremity arteries with atherectomy (AT) compared with percutaneous transluminal angioplasty (PTA) is still unclear. Therefore, the aim of the study was to compare long-term outcomes after percutaneous PTA and AT in patients requiring endovascular revascularization.Methods and Results:This was a single-center, retrospective registry of obstructive and symptomatic PAD patients who underwent endovascular revascularization. PTA was performed in 215 patients, and AT in 204 (Silver Hawk, EV3, n=125; CSI 360°, n=66; Pathway Medical Technologies, n=13). There were no significant between-group differences in baseline characteristics except for increased CAD, dialysis and CLI prevalence in the PTA group. Following propensity score analysis 131 well-matched pairs were included in analysis. Bail-out stenting was more frequent in the reference group (PTA, 6.1% vs. AT, 0%; P=0.004). At 6- and 12-month follow-up there were no differences in TLR between the groups (PTA, 8.3% vs. AT, 5.3%; P=0.47; and PTA, 16.7% vs. AT, 13.7%; P=0.73, respectively). The difference was in favor of AT at 24-month follow-up (PTA, 29.0% vs. AT, 16.7%; P=0.05). No difference was observed in amputation rate (PTA, 0.7% vs AT, 1.5%; P=0.62). On Kaplan-Meier analysis there were no significant differences between groups in time to TLR, amputation or death. AT was associated with lower risk of TLR, and this should be confirmed in randomized controlled trials.

Design and testing of the Space Station Freedom Propellant Tank Assembly

NASA Technical Reports Server (NTRS)

Dudley, D. D.; Thonet, T. A.; Goforth, A. M.

1992-01-01

Propellant storage and management functions for the Propulsion Module of the U.S. Space Station Freedom are provided by the Propellant Tank Assembly (PTA). The PTA consists of a surface-tension type propellant acquisition device contained within a welded titanium pressure vessel. The PTA design concept was selected with high reliability and low program risk as primary goals in order to meet stringent NASA structural, expulsion, fracture control and reliability requirements. The PTA design makes use of Shuttle Orbital Maneuvering System and Peacekeeper Propellant Storage Assembly design and analysis techniques. This paper summarizes the PTA design solution and discusses the underlying detailed analyses. In addition, design verification and qualification test activities are discussed.

[Foot ulceration risk factors in type 2 diabetes mellitus].

PubMed

Bustos-Saldaña, Rafael; Prieto-Miranda, Sergio

2009-01-01

To identify risk factor prevalence for development of foot ulcers in patients with type 2 diabetes (DM2). A cross sectional study, of 2067 patients with DM2 from seven primary care units was conducted. A questionnaire exploring age, sex, occupation, time from diabetes mellitus diagnosis (DMD), and data concerning neuropathy, vascular changes, and presence of infections, anthropometry, and gait was applied. We found mean age, 59.96 +/- 11.47 years and time from DMD, 10.2 +/- 8.09 years. From 1360 women, 65.8 % presented the following risk factors: age, 34.7 %; schooling, 49.5 %; time from DMD, 38.8 %; occupation, 20 %; smoking, 24.3 %; alcoholism, 4.6 %; fasting glucose disturbance, 78 %; ulcer history, 10 %. In relation to associated diseases, 67.5 % of patients had one or more antecedent. The presence of risk factors in the sample was 9.716 +/- 2.52, of which 6.259 +/- 1.59 were modifiable. Patients studied presented high risk factor prevalence for development of foot ulcer. The majority of RF is potentially modifiable by adjusting patients' customs and habits.

Efficacy of Ultrasound-Guided Axillary Brachial Plexus Block for Analgesia During Percutaneous Transluminal Angioplasty for Dialysis Access

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chiba, Emiko, E-mail: chibaemi23@comet.ocn.ne.jp; Hamamoto, Kohei, E-mail: hkouhei917@gmail.com; Nagashima, Michio, E-mail: nagamic00@gmail.com

PurposeTo evaluate the efficacy and safety of ultrasound (US)-guided axillary brachial plexus block (ABPB) for analgesia during percutaneous transluminal angioplasty (PTA) for dialysis access.Subjects and MethodsTwenty-one patients who underwent PTA for stenotic dialysis access shunts and who had previous experience of PTA without sedation, analgesia, and anesthesia were included. The access type in all patients was native arteriovenous fistulae in the forearm. Two radiologists performed US-guided ABPB for the radial and musculocutaneous nerves before PTA. The patients’ pain scores were evaluated using a visual analog scale (VAS) after PTA, and these were compared with previous sessions without US-guided ABPB. Themore » patient’s motor/sensory paralysis after PTA was also examined.ResultsThe mean time required to achieve US-guided ABPB was 8 min. The success rate of this procedure was 100 %, and there were no significant complications. All 21 patients reported lower VAS with US-guided ABPB as compared to without the block (p < 0.01). All patients expressed the desire for an ABPB for future PTA sessions, if required. Transient motor paralysis occurred in 8 patients, but resolved in all after 60 min.ConclusionUS-guided ABPB is feasible and effective for analgesia in patients undergoing PTA for stenotic dialysis access sites.Level of EvidenceLevel 4 (case series).« less

Environmental Cadmium and Lead Exposures and Hearing Loss in U.S. Adults: The National Health and Nutrition Examination Survey, 1999 to 2004

PubMed Central

Choi, Yoon-Hyeong; Hu, Howard; Mukherjee, Bhramar; Miller, Josef

2012-01-01

Background: Although cadmium and lead are known risk factors for hearing loss in animal models, few epidemiologic studies have been conducted on their associations with hearing ability in the general population. Objectives: We investigated the associations between blood cadmium and lead exposure and hearing loss in the U.S. general population while controlling for noise and other major risk factors contributing to hearing loss. Methods: We analyzed data from 3,698 U.S. adults 20–69 years of age who had been randomly assigned to the National Health and Nutrition Examination Survey (NHANES) 1999–2004 Audiometry Examination Component. Pure-tone averages (PTA) of hearing thresholds at frequencies of 0.5, 1, 2, and 4 kHz were computed, and hearing loss was defined as a PTA > 25 dB in either ear. Results: The weighted geometric means of blood cadmium and lead were 0.40 [95% confidence interval (CI): 0.39. 0.42] µg/L and 1.54 (95% CI: 1.49, 1.60) µg/dL, respectively. After adjusting for sociodemographic and clinical risk factors and exposure to occupational and nonoccupational noise, the highest (vs. lowest) quintiles of cadmium and lead were associated with 13.8% (95% CI: 4.6%, 23.8%) and 18.6% (95% CI: 7.4%, 31.1%) increases in PTA, respectively (p-trends < 0.05). Conclusions: Our results suggest that low-level exposure to cadmium and lead found in the general U.S. population may be important risk factors for hearing loss. The findings support efforts to reduce environmental cadmium and lead exposures. PMID:22851306

Survivor identity after colorectal cancer: antecedents, prevalence and outcomes.

PubMed

Chambers, Suzanne K; Baade, Peter; Meng, Xingqiong; Youl, Pip; Aitken, Joanne; Dunn, Jeff

2012-09-01

Cancer survivor identity has become a dominant paradigm in describing people with cancer and in driving the focus of programmes and research in supportive care. This study investigated antecedents of survivor identity adoption and population-based prevalence. A prospective survey of a population-based sample of 1966 (57% response) patients with colorectal cancer assessed socio-demographic variables, health behaviours, optimism, benefit finding, cancer threat appraisal, psychological distress and satisfaction with life at 5 months post-diagnosis as predictors of survivor identity 5 years subsequently. Prevalence of survivor identity at 5 years post-diagnosis and psychological and lifestyle outcomes (n = 786) were later assessed. Fifty-five per cent of people identified as a cancer survivor, 39.4% as a person who had had (or has) cancer, 1.4% as a cancer patient and 1.2% as a cancer victim. People who were older and who reported higher personal growth after diagnosis were more likely to assume a survivor identity at 5 years. At 5 years, survivors had higher benefit finding and better satisfaction with life. Cancer survivors uniquely reported a significant decrease in somatization and acceptance, and increases in satisfaction with life and physical activity over time. For patients with colorectal cancer, the cancer survivor identity is common but not universal 5 years after diagnosis; and may evolve from looking for benefit after cancer through personal growth. People who adopt a cancer survivor identity report more positive adjustment outcomes after cancer and this has implications for the design of clinical and community support interventions. Copyright © 2011 John Wiley & Sons, Ltd. Copyright © 2011 John Wiley & Sons, Ltd.

Identifying Trajectories of Borderline Personality Features in Adolescence: Antecedent and Interactive Risk Factors.

PubMed

Haltigan, John D; Vaillancourt, Tracy

2016-03-01

To examine trajectories of adolescent borderline personality (BP) features in a normative-risk cohort (n = 566) of Canadian children assessed at ages 13, 14, 15, and 16 and childhood predictors of trajectory group membership assessed at ages 8, 10, 11, and 12. Data were drawn from the McMaster Teen Study, an on-going study examining relations among bullying, mental health, and academic achievement. Participants and their parents completed a battery of mental health and peer relations questionnaires at each wave of the study. Academic competence was assessed at age 8 (Grade 3). Latent class growth analysis, analysis of variance, and logistic regression were used to analyze the data. Three distinct BP features trajectory groups were identified: elevated or rising, intermediate or stable, and low or stable. Parent- and child-reported mental health symptoms, peer relations risk factors, and intra-individual risk factors were significant predictors of elevated or rising and intermediate or stable trajectory groups. Child-reported attention-deficit hyperactivity disorder (ADHD) and somatization symptoms uniquely predicted elevated or rising trajectory group membership, whereas parent-reported anxiety and child-reported ADHD symptoms uniquely predicted intermediate or stable trajectory group membership. Child-reported somatization symptoms was the only predictor to differentiate the intermediate or stable and elevated or rising trajectory groups (OR 1.15, 95% CI 1.04 to 1.28). Associations between child-reported reactive temperament and elevated BP features trajectory group membership were 10.23 times higher among children who were bullied, supporting a diathesis-stress pathway in the development of BP features for these youth. Findings demonstrate the heterogeneous course of BP features in early adolescence and shed light on the potential prodromal course of later borderline personality disorder. © The Author(s) 2015.