Chimpanzees' Context-Dependent Tool Use Provides Evidence for Separable Representations of Hand and Tool Even during Active Use within Peripersonal Space

ERIC Educational Resources Information Center

Povinelli, Daniel J.; Reaux, James E.; Frey, Scott H.

2010-01-01

Considerable attention has been devoted to behaviors in which tools are used to perform actions in extrapersonal space by extending the reach. Evidence suggests that these behaviors result in an expansion of the body schema and peripersonal space. However, humans often use tools to perform tasks within peripersonal space that cannot be…

Contract Financing for Small Business

DTIC Science & Technology

1981-11-01

problem. Small business contractors devote considerable management attention to operating capital and cash flow. Small business contractors are keenly...CONTRACT FINANCING 0FOR SMALL BUSINESS November 1981 -s Paul R. McClenon Prepared pursuant to Department of Defense Contract No. MDA903-81-C-0166...34 i 12 17046 DistIbufios Unlimted !I CONTRACT FINANCING FOR SMALL BUSINESS EXECUTIVE SUMMHARY To perform effectively on a contract, a firm needs

Puppets on a String in a Theatre of Display? Interactions of Image, Text, Material, Space and Motion in "The Family of Man" (ca. 1950s-1960s)

ERIC Educational Resources Information Center

Priem, Karin; Thyssen, Geert

2013-01-01

In the past few decades, increasing attention has been devoted within various disciplines to aspects previously considered trivial, among which are images, material objects and spaces. While the visual, the material and the spatial are receiving ever more consideration and the myriad issues surrounding them are being tackled, their convergence in…

The Psychological Benefits from Reconceptualizing Music-Making as Mindfulness Practice.

PubMed

Steinfeld, Matthew; Brewer, Judson

2015-06-01

While the music psychology and education literatures have devoted considerable attention to how musical instrumentalists practice their instruments, less formal scholarly attention has been given in consideration of what it means to maintain a musical "practice" over time and across context. In this paper, the practice of mindfulness meditation is used as heuristic, arguing for a view of mindfulness meditation as a formalized de-specialization of the infinite number of other activities with which people can achieve mindfulness. Sitting meditation, requiring of one to observe the contents of their mind unmediated, can serve as a useful model for the musician in understanding the phenomenology of the music-making process and the "flow" states that can result from an embodied musical practice. Finally, reconceptualizing music-making as a mindfulness practice is considered with psychological and pedagogical implications relevant for developing musicians.

Cabin Atmosphere Monitoring System (CAMS), pre-prototype model development continuation

NASA Technical Reports Server (NTRS)

Bursack, W. W.; Harris, W. A.

1975-01-01

The development of the Cabin Atmosphere Monitoring System (CAMS) is described. Attention was directed toward improving stability and reliability of the design using flight application guidelines. Considerable effort was devoted to the development of a temperature-stable RF/DC generator used for excitation of the quadrupole mass filter. Minor design changes were made in the preprototype model. Specific gas measurement examples are included along with a discussion of the measurement rationale employed.

Enhancing academic achievement for children with Attention-Deficit Hyperactivity Disorder: evidence from school-based intervention research.

PubMed

Jitendra, Asha K; Dupaul, George J; Someki, Fumio; Tresco, Katy E

2008-01-01

Although children with Attention-Deficit Hyperactivity Disorder (ADHD) exhibit significant academic difficulties in school settings, considerably less attention is devoted to remediating their academic problems when compared to behavioral and social difficulties. The purpose of this article is to review empirically supported academic interventions for children with ADHD. Specific evidence-based academic interventions are described under the categories of reading and mathematics, with examples that illustrate teacher-mediated interventions focusing on basic skills (e.g., phonological awareness in reading, mathematics computation) and higher-level cognitive skills (e.g., collaborative strategic reading, CSR; schema-based instruction, SBI). Finally, implications for educational practice and directions for future research on school-based academic interventions for students with ADHD are discussed.

Public health ethics: from foundations and frameworks to justice and global public health.

PubMed

Kass, Nancy E

2004-01-01

Ethics dilemmas have been present throughout the history of public health, and bioethics has devoted considerable attention to issues relevant to public health. Only recently, however, has public health ethics emerged as a recognized subfield of bioethics. Public health ethics requires that public health improvement come through just and respectful means. Bioethics in the future not only will take on more issues of public ethics, but will apply it extensive scholarship in distributive justice to questions of global public health.

Oral health considerations in anorexia and bulimia nervosa. 1. Symptomatology and diagnosis.

PubMed

Bassiouny, Mohamed A

2017-01-01

Eating disorders have captured the attention of medical and dental professionals as well as the public for decades and continue to raise concern today. The literature devoted to anorexia and bulimia highlights myriad psychological, systemic, and dental health complications. Dental practitioners are in a unique position to discover early manifestations of these disorders. The present article reviews anorexia and bulimia, summarizing telltale behavioral traits, systemic manifestations, and dental features to facilitate recognition and enable accurate diagnosis.

Best research practices in psychology: Illustrating epistemological and pragmatic considerations with the case of relationship science.

PubMed

Finkel, Eli J; Eastwick, Paul W; Reis, Harry T

2015-02-01

In recent years, a robust movement has emerged within psychology to increase the evidentiary value of our science. This movement, which has analogs throughout the empirical sciences, is broad and diverse, but its primary emphasis has been on the reduction of statistical false positives. The present article addresses epistemological and pragmatic issues that we, as a field, must consider as we seek to maximize the scientific value of this movement. Regarding epistemology, this article contrasts the false-positives-reduction (FPR) approach with an alternative, the error balance (EB) approach, which argues that any serious consideration of optimal scientific practice must contend simultaneously with both false-positive and false-negative errors. Regarding pragmatics, the movement has devoted a great deal of attention to issues that frequently arise in laboratory experiments and one-shot survey studies, but it has devoted less attention to issues that frequently arise in intensive and/or longitudinal studies. We illustrate these epistemological and pragmatic considerations with the case of relationship science, one of the many research domains that frequently employ intensive and/or longitudinal methods. Specifically, we examine 6 research prescriptions that can help to reduce false-positive rates: preregistration, prepublication sharing of materials, postpublication sharing of data, close replication, avoiding piecemeal publication, and increasing sample size. For each, we offer concrete guidance not only regarding how researchers can improve their research practices and balance the risk of false-positive and false-negative errors, but also how the movement can capitalize upon insights from research practices within relationship science to make the movement stronger and more inclusive. PsycINFO Database Record (c) 2015 APA, all rights reserved.

JPRS Report, East Europe

DTIC Science & Technology

1988-02-08

political activities; they attentively follow the development of situations in the world and in our country; although advanced in age, nevertheless...possibilities exist, but proper attention is not being devoted to the question. Particularly with regard to ensuring timely acquisition of printing...materials, as well as their quality. We think that radical changes must be made here. Great attention must also be devoted to lowering the cost of

Public-Private Partnerships in Education: Insights from the Field

ERIC Educational Resources Information Center

Davies, Brent; Hentschke, Guilbert

2006-01-01

Despite extensive attention (positive and negative) devoted to the philosophical, public policy and political dimensions of public-private partnerships (PPPs) in education, little attention has been devoted to their managerial implications as well as the broader organizational context (strategic alliances) within which they are a special case. In…

Morphology and dynamics of galaxies; Proceedings of the Twelfth Advanced Course, Saas-Fee, Switzerland, March 29-April 3, 1982

NASA Astrophysics Data System (ADS)

Martinet, L.; Mayor, M.

The basic problems and analysis techniques in examining the morphology, dynamics, and interactions between star systems, galaxies, and galactic clusters are detailed. Attention is devoted to the dynamics of hot stellar systems, with note taken of the derivation and application of the Vlasov equation, Jean's theorem, and the virial equations. Observations of galactic structure and dynamics are reviewed, and consideration is directed toward environmental influences on galactic structure. For individual items see A84-15503 to A84-15505

Top-Down Control of Visual Attention by the Prefrontal Cortex. Functional Specialization and Long-Range Interactions

PubMed Central

Paneri, Sofia; Gregoriou, Georgia G.

2017-01-01

The ability to select information that is relevant to current behavioral goals is the hallmark of voluntary attention and an essential part of our cognition. Attention tasks are a prime example to study at the neuronal level, how task related information can be selectively processed in the brain while irrelevant information is filtered out. Whereas, numerous studies have focused on elucidating the mechanisms of visual attention at the single neuron and population level in the visual cortices, considerably less work has been devoted to deciphering the distinct contribution of higher-order brain areas, which are known to be critical for the employment of attention. Among these areas, the prefrontal cortex (PFC) has long been considered a source of top-down signals that bias selection in early visual areas in favor of the attended features. Here, we review recent experimental data that support the role of PFC in attention. We examine the existing evidence for functional specialization within PFC and we discuss how long-range interactions between PFC subregions and posterior visual areas may be implemented in the brain and contribute to the attentional modulation of different measures of neural activity in visual cortices. PMID:29033784

Top-Down Control of Visual Attention by the Prefrontal Cortex. Functional Specialization and Long-Range Interactions.

PubMed

Paneri, Sofia; Gregoriou, Georgia G

2017-01-01

The ability to select information that is relevant to current behavioral goals is the hallmark of voluntary attention and an essential part of our cognition. Attention tasks are a prime example to study at the neuronal level, how task related information can be selectively processed in the brain while irrelevant information is filtered out. Whereas, numerous studies have focused on elucidating the mechanisms of visual attention at the single neuron and population level in the visual cortices, considerably less work has been devoted to deciphering the distinct contribution of higher-order brain areas, which are known to be critical for the employment of attention. Among these areas, the prefrontal cortex (PFC) has long been considered a source of top-down signals that bias selection in early visual areas in favor of the attended features. Here, we review recent experimental data that support the role of PFC in attention. We examine the existing evidence for functional specialization within PFC and we discuss how long-range interactions between PFC subregions and posterior visual areas may be implemented in the brain and contribute to the attentional modulation of different measures of neural activity in visual cortices.

Saussure and Linguistic Geography.

ERIC Educational Resources Information Center

Harris, Roy

1993-01-01

Discusses Saussures's "Cours de linguistique generale," which was published in 1916, and devotes specific attention to the significance of Part VI, which is devoted to linguistic geography. (16 references) (Author/VWL)

Beyond telecommuting

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

Loken, S.C.; Niles, J.

1996-05-01

Although there has been considerable discussion about how telecommunications will affect the demand for transportation, most studies have focused on substituting telecommunications for transportation. For example, telephone and video conferencing can replace travel for meetings; electronic mail can replace postal service. More importantly, people can telecommute part-time or full- time using telecommunications instead of traveling to work. There are many other examples of reducing or eliminating travel by telecommunicating, but what may not be obvious is how telecommunications stimulates travel. As the volume of telecommunications traffic increases, travel has been stimulated in a number of important ways. Increased telecommunications hasmore » fostered economic growth that has, in turn, increased travel. With increased use of telecommunications, people move farther apart so economic and social trips become, on the average, longer. to ensure that society continues to benefit from this stimulation, the government will have to devote considerable attention to developing the telecommunications infrastructure and to supporting appropriate telecommunications policy. In particular, governments must learn to allocate resources and attention reasonably to ensure that systems support economic and social growth.« less

The devil is in the details: Comparisons of episodic simulations of positive and negative future events.

PubMed

Puig, Vannia A; Szpunar, Karl K

2017-08-01

Over the past decade, psychologists have devoted considerable attention to episodic simulation-the ability to imagine specific hypothetical events. Perhaps one of the most consistent patterns of data to emerge from this literature is that positive simulations of the future are rated as more detailed than negative simulations of the future, a pattern of results that is commonly interpreted as evidence for a positivity bias in future thinking. In the present article, we demonstrate across two experiments that negative future events are consistently simulated in more detail than positive future events when frequency of prior thinking is taken into account as a possible confounding variable and when level of detail associated with simulated events is assessed using an objective scoring criterion. Our findings are interpreted in the context of the mobilization-minimization hypothesis of event cognition that suggests people are especially likely to devote cognitive resources to processing negative scenarios. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Romania as a NATO Member: A Reliable Ally to the US in Afghanistan

DTIC Science & Technology

2010-06-11

advent of the “long war” against terrorism . Special attention is devoted to the varying impact of structures, sentiments, threats, interests, and...to Euro-Atlantic security arrangements, especially after the advent of the “long war” against terrorism . Special attention is devoted to the varying...conventional threats, in fighting international terrorism . The decision today recognizes the efforts mounted by the Romanian Army to perfect itself and

On conforming mixed finite element methods for incompressible viscous flow problems

NASA Technical Reports Server (NTRS)

Gunzburger, M. D; Nicolaides, R. A.; Peterson, J. S.

1982-01-01

The application of conforming mixed finite element methods to obtain approximate solutions of linearized Navier-Stokes equations is examined. Attention is given to the convergence rates of various finite element approximations of the pressure and the velocity field. The optimality of the convergence rates are addressed in terms of comparisons of the approximation convergence to a smooth solution in relation to the best approximation available for the finite element space used. Consideration is also devoted to techniques for efficient use of a Gaussian elimination algorithm to obtain a solution to a system of linear algebraic equations derived by finite element discretizations of linear partial differential equations.

Nature's palette: the search for natural blue colorants.

PubMed

Newsome, Andrew G; Culver, Catherine A; van Breemen, Richard B

2014-07-16

The food and beverage industry is seeking to broaden the palette of naturally derived colorants. Although considerable effort has been devoted to the search for new blue colorants in fruits and vegetables, less attention has been directed toward blue compounds from other sources such as bacteria and fungi. The current work reviews known organic blue compounds from natural plant, animal, fungal, and microbial sources. The scarcity of blue-colored metabolites in the natural world relative to metabolites of other colors is discussed, and structural trends common among natural blue compounds are identified. These compounds are grouped into seven structural classes and evaluated for their potential as new color additives.

[Providing regular relief; considerations for palliative care in the Netherlands].

PubMed

Crul, B J; van Weel, C

2001-10-20

Over the last few decades the attention devoted to the palliative aspects of medicine, particularly those in hospital care, has declined due to the emphasis on medical technology. In Anglo-Saxon countries a review of this development resulted in structured palliative care that benefited terminally ill patients with a progressive fatal disease, especially cancer patients. Due to increasing national and international criticism of both the practice of euthanasia (assumed to be too liberal) and the lack of attention devoted to structured palliative care in the Netherlands, the Dutch government decided to improve the structure of palliative care. The government's viewpoint is based on the assumption that good palliative care that includes adequate pain control benefits patient care and might eventually lead to fewer requests for euthanasia. The improvements to palliative care should be realised by means of improvements in the structure, training and knowledge. Six academic medical clusters have been designated as Centres for the Development of Palliative Care (Dutch acronym: COPZ) for a 5-year period. Each COPZ must develop the various aspects needed to improve palliative care within the region it serves and ensure that its activities are carefully coordinated with those in the other centres. Research will focus on measuring the efficacy of palliative care as well as ethical and epidemiological aspects. A government committee will assess the appropriateness of the activities undertaken by each of the centres.

Nurses' and patients' perceptions of privacy protection behaviours and information provision.

PubMed

Kim, Kyunghee; Han, Yonghee; Kim, Ji-Su

2017-08-01

With increased attention to patient privacy and autonomy, privacy protection and information provision for patients are becoming increasingly important. The aim of this study was to identify and analyse nurses' and patients' perceptions of the importance and performance of protecting patients' privacy and providing them with relevant information. This study is a descriptive cross-sectional investigation. Participants and research context: Participants were 168 patients hospitalised in medical and surgical wards and 176 nurses who cared for them. Ethical consideration: This study was approved by the Chung-Ang University Bioethics Committee, and informed written consent was collected from all participants. Nurses' recognition of the importance of protecting patients' privacy and providing adequate information was higher compared to their actual performance, and the nurses' level of performance was higher in comparison with the patients' recognition of its importance. Although a holistic approach to patient privacy protection and information provision is needed, the medical field has not embraced this model of care. These findings provide empirical data to create an ethical environment for the future, as considerable attention has been devoted to patients' rights and medical institutions' liability for providing explanations to patients.

Recent advances in tea polysaccharides: Extraction, purification, physicochemical characterization and bioactivities.

PubMed

Chen, Guijie; Yuan, Qingxia; Saeeduddin, Muhammad; Ou, Shiyi; Zeng, Xiaoxiong; Ye, Hong

2016-11-20

Tea has a long history of medicinal and dietary use. Tea polysaccharide (TPS) is regarded as one of the main bioactive constituents of tea and is beneficial for health. Over the last decades, considerable efforts have been devoted to the studies on TPS: extraction, structural feature and bioactivity of TPS. However, it has been received much less attention compared with tea polyphenols. In order to provide new insight for further development of TPS in functional foods, in present review we summarize the recent literature, update the information and put forward future perspectives on TPS covering its extraction, purification, quantitative determination techniques as well as physicochemical characterization and bioactivities. Copyright © 2016 Elsevier Ltd. All rights reserved.

Neurocognitive pattern analysis reveals classificatory hierarchy of attention deficits in schizophrenia.

PubMed

Shen, Christina; Popescu, Florin C; Hahn, Eric; Ta, Tam T M; Dettling, Michael; Neuhaus, Andres H

2014-07-01

Attention deficits, among other cognitive deficits, are frequently observed in schizophrenia. Although valid and reliable neurocognitive tasks have been established to assess attention deficits in schizophrenia, the hierarchical value of those tests as diagnostic discriminants on a single-subject level remains unclear. Thus, much research is devoted to attention deficits that are unlikely to be translated into clinical practice. On the other hand, a clear hierarchy of attention deficits in schizophrenia could considerably aid diagnostic decisions and may prove beneficial for longitudinal monitoring of therapeutic advances. To propose a diagnostic hierarchy of attention deficits in schizophrenia, we investigated several facets of attention in 86 schizophrenia patients and 86 healthy controls using a set of established attention tests. We applied state-of-the-art machine learning algorithms to determine attentive test variables that enable an automated differentiation between schizophrenia patients and healthy controls. After feature preranking, hypothesis building, and hypothesis validation, the polynomial support vector machine classifier achieved a classification accuracy of 90.70% ± 2.9% using psychomotor speed and 3 different attention parameters derived from sustained and divided attention tasks. Our study proposes, to the best of our knowledge, the first hierarchy of attention deficits in schizophrenia by identifying the most discriminative attention parameters among a variety of attention deficits found in schizophrenia patients. Our results offer a starting point for hierarchy building of schizophrenia-associated attention deficits and contribute to translating these concepts into diagnostic and therapeutic practice on a single-subject level. © The Author 2013. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center. All rights reserved. For permissions, please email: journals.permissions@oup.com.

Making health care safer: What is the contribution of health psychology?

PubMed

Vincent, Charles; Wearden, Alison; French, David P

2015-11-01

While health care brings great benefits, all treatments, and many investigations, carry some risk. As patients, we should be told of the risks of specific treatments but we are also at risk from failings in the health care system itself. We suggest that, while there are many examples of individual health psychologists who have made important contributions, this has not yet translated into a broader disciplinary engagement. Health psychologists have devoted much more attention to patients and devoted much less attention to the potentially huge impact of studying and intervening with staff, clinical practice, and organizations. We believe that there are considerable opportunities for health psychology to engage more closely with patient safety and, more importantly, that this would be of great benefit to both patients and staff. Statement of contribution What is already known on this subject? While health care brings great benefits, all treatments, and many investigations, carry some risk. Patients are also at risk from failings in the health care system itself. Studies using review of medical records in many countries have found that between 8% and 12% of patients in hospital suffer an unintended harm due to health care. What does this study add? There are many examples of individual psychologists who have made important contributions, but this has not yet translated into a broader disciplinary engagement. There are considerable opportunities for health psychology to engage more closely with patient safety. These include health behaviour change, teamwork, communication after medical error, diagnosis and decision making, organisational culture, and improving compliance with rules and standards. Psychologists providing a clinical service to specialist services in any area could expand their remit from supporting patients to a more general support and engagement with safety and quality initiatives. Health psychologists have models to understand the behaviour of people, and recent developments in changing behaviour should be applicable to health professionals in addition to their patients. © 2015 The British Psychological Society.

How Early is Infants' Attention to Objects and Actions Shaped by Culture? New Evidence from 24-Month-Olds Raised in the US and China

PubMed Central

Waxman, Sandra R.; Fu, Xiaolan; Ferguson, Brock; Geraghty, Kathleen; Leddon, Erin; Liang, Jing; Zhao, Min-Fang

2016-01-01

Researchers have proposed that the culture in which we are raised shapes the way that we attend to the objects and events that surround us. What remains unclear, however, is how early any such culturally-inflected differences emerge in development. Here, we address this issue directly, asking how 24-month-old infants from the US and China deploy their attention to objects and actions in dynamic scenes. By analyzing infants' eye movements while they observed dynamic scenes, the current experiment revealed striking convergences, overall, in infants' patterns of visual attention in the two communities, but also pinpointed a brief period during which their attention reliably diverged. This divergence, though modest, suggested that infants from the US devoted relatively more attention to the objects and those from China devoted relatively more attention to the actions in which they were engaged. This provides the earliest evidence for strong overlap in infants' attention to objects and events in dynamic scenes, but also raises the possibility that by 24 months, infants' attention may also be shaped subtly by the culturally-inflected attentional proclivities characteristic of adults in their cultural communities. PMID:26903905

Enclothed Cognition and Controlled Attention during Insight Problem-Solving

ERIC Educational Resources Information Center

Van Stockum, Charles A., Jr.; DeCaro, Marci S.

2014-01-01

Individual differences in working memory capacity (WMC) increase the ability and tendency to devote greater attentional control to a task--improving performance on a wide range of skills. In addition, recent research on enclothed cognition demonstrates that the situational influence of wearing a white lab coat increases controlled attention, due…

Theoretical study on physicochemical properties of curcumin

NASA Astrophysics Data System (ADS)

Shen, Liang; Ji, Hong-Fang

2007-07-01

Curcumin is a yellow-orange pigment, which has attracted considerable attention due to its wide spectrum of biological and pharmacological activities. In spite of much effort devoted on curcumin, there still exist some open questions concerning its fundamental physicochemical properties. The present study suggests that the DFT and TD-DFT calculations are useful to answer these questions. Firstly, the thermodynamic as well as spectral parameters support that curcumin exists predominantly in enol form in solution. Secondly, the calculated absorption spectra of curcumin anions provides direct evidence that the lowest p Ka of curcumin corresponds to the dissociation of enolic proton, which not only reconciles the controversy on this topic, but also has important implications on the proton-transfer/dissociation-associated radical-scavenging mechanisms of curcumin.

Relationships between High School Chemistry Students' Perceptions of a Constructivist Learning Environment and their STEM Career Expectations

NASA Astrophysics Data System (ADS)

Wild, Andrew

2015-09-01

Considerable attention has been devoted to factors affecting the persistence of women and historically underrepresented ethnic groups in their science education trajectories. The literature has focused more on structural factors that affect longitudinal outcomes rather than classroom experiences. This exploratory survey study described relationships among high school chemistry students' perceptions of a constructivist learning environment (CLE) and STEM career expectations. The sample included 693 students from 7 public high schools within the San Francisco Bay Area. Students' perceptions of a CLE predicted their expectations of entering a science career, but not engineering, computer, health, or mathematics-related careers. When all groups of students perceived the learning environment as more constructivist, they were more likely to expect science careers.

Religious Influences on Work-Family Trade-Offs

ERIC Educational Resources Information Center

Ammons, Samantha K.; Edgell, Penny

2007-01-01

Despite a large body of research on the influences of religion on family life and gender ideology, few studies examined how religion affects work-family strategies. One set of strategies involves making employment or family trade-off--strategies of devoting time or attention to either work or family in a situation in which one cannot devote the…

A Neural Theory of Visual Attention: Bridging Cognition and Neurophysiology

ERIC Educational Resources Information Center

Bundesen, Claus; Habekost, Thomas; Kyllingsbaek, Soren

2005-01-01

A neural theory of visual attention (NTVA) is presented. NTVA is a neural interpretation of C. Bundesen's (1990) theory of visual attention (TVA). In NTVA, visual processing capacity is distributed across stimuli by dynamic remapping of receptive fields of cortical cells such that more processing resources (cells) are devoted to behaviorally…

Video Game Adapts To Brain Waves

NASA Technical Reports Server (NTRS)

Pope, Alan T.; Bogart, Edward H.

1994-01-01

Electronic training system based on video game developed to help children afflicted with attention-deficit disorder (ADD) learn to prolong their attention spans. Uses combination of electroencephalography (EEG) and adaptive control to encourage attentiveness. Monitors trainee's brain-wave activity: if EEG signal indicates attention is waning, system increases difficulty of game, forcing trainee to devote more attention to it. Game designed to make trainees want to win and, in so doing, learn to pay attention for longer times.

Plasmonic biosensors.

PubMed

Hill, Ryan T

2015-01-01

The unique optical properties of plasmon resonant nanostructures enable exploration of nanoscale environments using relatively simple optical characterization techniques. For this reason, the field of plasmonics continues to garner the attention of the biosensing community. Biosensors based on propagating surface plasmon resonances (SPRs) in films are the most well-recognized plasmonic biosensors, but there is great potential for the new, developing technologies to surpass the robustness and popularity of film-based SPR sensing. This review surveys the current plasmonic biosensor landscape with emphasis on the basic operating principles of each plasmonic sensing technique and the practical considerations when developing a sensing platform with the various techniques. The 'gold standard' film SPR technique is reviewed briefly, but special emphasis is devoted to the up-and-coming localized surface plasmon resonance and plasmonically coupled sensor technology. © 2014 Wiley Periodicals, Inc.

Opportunities and choice in a new vector era

NASA Astrophysics Data System (ADS)

Nowak, A.

2014-06-01

This work discusses the significant changes in computing landscape related to the progression of Moore's Law, and the implications on scientific computing. Particular attention is devoted to the High Energy Physics domain (HEP), which has always made good use of threading, but levels of parallelism closer to the hardware were often left underutilized. Findings of the CERN openlab Platform Competence Center are reported in the context of expanding "performance dimensions", and especially the resurgence of vectors. These suggest that data oriented designs are feasible in HEP and have considerable potential for performance improvements on multiple levels, but will rarely trump algorithmic enhancements. Finally, an analysis of upcoming hardware and software technologies identifies heterogeneity as a major challenge for software, which will require more emphasis on scalable, efficient design.

Plasmonic Biosensors

PubMed Central

Hill, Ryan T.

2015-01-01

The unique optical properties of plasmon resonant nanostructures enable exploration of nanoscale environments using relatively simple optical characterization techniques. For this reason, the field of plasmonics continues to garner the attention of the biosensing community. Biosensors based on propagating surface plasmon resonances (SPRs) in films are the most well-recognized plasmonic biosensors, but there is great potential for the new, developing technologies to surpass the robustness and popularity of film-based SPR sensing. This review surveys the current plasmonic biosensor landscape with emphasis on the basic operating principles of each plasmonic sensing technique and the practical considerations when developing a sensing platform with the various techniques. The “gold standard” film SPR technique is reviewed briefly, but special emphasis is devoted to the up-and-coming LSPR-based and plasmonically coupled sensor technology. PMID:25377594

Comparing Textbook Coverage of Lean Management to Academic Research and Industry Practitioner Perceptions

ERIC Educational Resources Information Center

Marley, Kathryn A.; Stodnick, T. Michael; Heyl, Jeff

2013-01-01

Within operations management courses, most instructors choose to devote classroom time to teaching the topic of lean management. However, because the amount of time available for instructors to devote to this topic varies considerably, there is a great deal of latitude on which specific lean tools and techniques should be discussed. The authors…

The Effects of Foreign Language Learning on Creativity

ERIC Educational Resources Information Center

Ghonsooly, Behzad; Showqi, Sara

2012-01-01

The present study investigates the possible influence of foreign language learning on individuals' divergent thinking abilities. Unlike the large body of research devoted to unfolding the effect of bilingualism on cognitive functions, foreign language learning has gained little attention. This study aimed at bringing into attention the distinctive…

Environmental Education Evaluation: Time to Reflect, Time for Change

ERIC Educational Resources Information Center

Crohn, Kara; Birnbaum, Matthew

2010-01-01

Evaluation in environmental education is fairly nascent despite decades-long attention to its importance. In setting the context for future chapters appearing in this special issue of the "Journal of Evaluation and Program Planning," attention is devoted to the political circumstances associated with retrenchment in the public sector and increased…

Brain Research Can Help Principals Reform Secondary Schools.

ERIC Educational Resources Information Center

Sousa, David A.

1998-01-01

Rather than decrying students' boredom and short attention span, principals should adjust schools accordingly. One's feelings about a learning situation determine the attention devoted to it. Secondary principals can help by keeping their schools violence-free, informing their teachers about emotional aspects of learning and teaching, working with…

Listening, Watching, and Reading: The Structure and Correlates of Entertainment Preferences

PubMed Central

Rentfrow, Peter J.; Goldberg, Lewis R.; Zilca, Ran

2010-01-01

People spend considerable amounts of time and money listening to music, watching TV and movies, and reading books and magazines, yet almost no attention in psychology has been devoted to understanding individual differences in preferences for such entertainment. The present research was designed to examine the structure and correlates of entertainment genre preferences. Analyses of the genre preferences of over 3,000 individuals revealed a remarkably clear factor structure. Using multiple samples, methods, and geographic regions, data converged to reveal five entertainment-preference dimensions: Communal, Aesthetic, Dark, Thrilling, and Cerebral. Preferences for these entertainment dimensions were uniquely related to demographics and personality traits. Results also indicated that personality accounted for significant proportions of variance in entertainment preferences over and above demographics. The results provide a foundation for developing and testing hypotheses about the psychology of entertainment preferences. PMID:20649744

1982 International Geoscience and Remote Sensing Symposium, Munich, West Germany, June 1-4, 1982, Digest. Volumes 1 and 2

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

Not Available

1982-01-01

Theoretical and experimental data which have defined and/or extended the effectiveness of remote sensing operations are explored, with consideration given to both scientific and commercial activities. The remote sensing of soil moisture, the sea surface, and oil slicks is discussed, as are programs using satellites for studying geodynamics and geodesy, currents and waves, and coastal zones. NASA, Canadian, and Japanese radar and microwave passive and active systems are described, together with algorithms and techniques for image processing and classification. The SAR-580 project is outlined, and attention is devoted to satellite applications in investigations of the structure of the atmosphere, agriculturemore » and land use, and geology. Design and performance features of various optical scanner, radar, and multispectral data processing systems and procedures are detailed.« less

Switchable Photonic Crystals Using One-Dimensional Confined Liquid Crystals for Photonic Device Application.

PubMed

Ryu, Seong Ho; Gim, Min-Jun; Lee, Wonsuk; Choi, Suk-Won; Yoon, Dong Ki

2017-01-25

Photonic crystals (PCs) have recently attracted considerable attention, with much effort devoted to photonic bandgap (PBG) control for varying the reflected color. Here, fabrication of a modulated one-dimensional (1D) anodic aluminum oxide (AAO) PC with a periodic porous structure is reported. The PBG of the fabricated PC can be reversibly changed by switching the ultraviolet (UV) light on/off. The AAO nanopores contain a mixture of photoresponsive liquid crystals (LCs) with irradiation-activated cis/trans photoisomerizable azobenzene. The resultant mixture of LCs in the porous AAO film exhibits a reversible PBG, depending on the cis/trans configuration of azobenzene molecules. The PBG switching is reliable over many cycles, suggesting that the fabricated device can be used in optical and photonic applications such as light modulators, smart windows, and sensors.

Calving of Talyor Glacier, Dry Valleys, Antarctica

NASA Astrophysics Data System (ADS)

Carmichael, J. D.; Pettit, E. C.; Creager, K. C.; Hallet, B.

2007-12-01

Calving of tide-water glaciers has received considerable attention, with seismic arrays in Alaska, Greenland, and Antarctica devoted to their observation. In these environments, ice cliffs are directly coupled to oceanic temperatures. The land-based polar glaciers of the McMurdo Dry Valleys in Antarctica represent a simpler environment unaffected directly by water contact where other factors can be isolated. In particular, summer calving events of Taylor Glacier are observed to consist of precursory activity including crack growth, cliff overhang, and active seismicity at least 1 hour before collapse. We propose that collapse occurs only after a stress threshold has been crossed, evident from 'pre-calving' of ice from the cliff base 1-3 days prior to the major event. We provide photographic, seismic, and temperature data to illustrate the thermal and stress landscape for land-based calving of polar glaciers.

Can Facebook use induce well-being?

PubMed

Liu, Chia-Yi; Yu, Chia-Ping

2013-09-01

Over the past few decades, the widespread phenomenon of Internet abuse has gained attention from the public, academia, and the media. In a departure from this negative viewpoint, however, researchers and educators have devoted considerable effort in attempting to understand the influence of online communication on people's psychological well-being. This study focuses specifically on Facebook, and proposes a research model to examine the relationships among Facebook use, online social support, general social support, and psychological well-being. Our results show that using Facebook helped college students to obtain online social support, and that online social support is an extension of general social support. However, although general social support contributes to well-being, online social support appears to have little direct effect on well-being. The relationship between online social support and well-being is mediated through the factor of general social support.

JPRS Report, Near East & South Asia

DTIC Science & Technology

1989-04-17

and recogni- tion, it was a way to win notoriety and establish its credentials as a real opposition party, therefore as a player . The pact enabled...and groups, but we do object to the style used by these newspapers in their treatment of sports. They concentrate much of their attention on soccer ...and they devote pages of the sports section to the game. In fact, numerous weekly newspapers that are devoted entirely to soccer are published

Understanding Infants' and Children's Social Learning about Foods: Previous Research and New Prospects

ERIC Educational Resources Information Center

Shutts, Kristin; Kinzler, Katherine D.; DeJesus, Jasmine M.

2013-01-01

Developmental psychologists have devoted significant attention to investigating how children learn from others' actions, emotions, and testimony. Yet most of this research has examined children's socially guided learning about artifacts. The present article focuses on a domain that has received limited attention from those interested in the…

Supporting English Language Learners' Writing Abilities: Exploring Third Spaces

ERIC Educational Resources Information Center

Assaf, Lori Czop

2014-01-01

Research on the sociocultural processes of writing and its impact on writing instruction in the middle grades has gained increased attention in educational research. Less attention has been devoted to research on writing with middle grade English learners (ELs) who are mainstreamed into English only classrooms. National assessment data, reports,…

Perspectives: The Questionable Priorities of University Presidents

ERIC Educational Resources Information Center

Bok, Derek

2014-01-01

According to a 2010 survey on how university presidents spent their time, the respondents revealed that on a list of six common responsibilities, the one to which they devoted the least attention was "academic affairs." Derek Bok writes in this article that, although this finding seems to have attracted little attention, he finds it…

Professional Development of Teacher Educators: What Do They Do? Findings from an Explorative International Study

ERIC Educational Resources Information Center

Van der Klink, Marcel; Kools, Quinta; Avissar, Gilada; White, Simone; Sakata, Tetsuhito

2017-01-01

The attention being devoted to teacher educators as professionals and their professional development is unquestionably increasing. Whilst much of that attention is being directed at teacher educators in different countries, international comparisons have been quite rare to date. The research question addressed in this study was: "Do…

The spiritual health of veterans with a history of suicide ideation

PubMed Central

Kopacz, Marek S.

2014-01-01

Introduction: In recent years, considerable empirical attention has been devoted to examining the increased risk of suicide observed in some Veteran populations. This has led to a renewed focus on developing novel support options which can be used to respond to Veterans in distress, reducing their risk of suicide. Spirituality and religion, however, have been largely absent from any public discourse related to suicide prevention, not least of all in Veteran populations. Aim: The aim of this cross-sectional study is to compare the self-rated spiritual health of Veterans with and without suicide ideation. Identifying differences which may exist between these two groups could highlight the relevance of spiritual well-being to Veteran suicide prevention efforts. Materials and Methods: Data were collected using pencil-and-paper surveys, called Spiritual Assessments, distributed within the general population of in- and outpatients at a U.S. Department of Veterans Affairs Medical Center. Using Likert-type scales, this study examines the self-rated spiritual health, spiritual devotion, and significance ascribed to spirituality in a sample of 5378 Veterans. Statistical analysis took place using chi-squared to examine differences in the distribution of responses between ideators and non-ideators. Results: Ideators significantly more often rated their spiritual health as worse than that of non-ideators. Even with similar levels of spiritual devotion or significance ascribed to spiritual life, ideators continued to significantly more often rate their spiritual health as worse than that of non-ideators. Conclusion: The results show that Veterans with suicide ideation more often rate their spiritual health as worse than that of Veterans without suicide ideation. This suggests that spiritual well-being may indeed be relevant to suicide prevention efforts in Veteran populations. PMID:25750787

Beyond Work-Life "Integration".

PubMed

Williams, Joan C; Berdahl, Jennifer L; Vandello, Joseph A

2016-01-01

Research on the work-family interface began in the 1960s and has grown exponentially ever since. This vast amount of research, however, has had relatively little impact on workplace practice, and work-family conflict is at an all-time high. We review the work-family research to date and propose that a shift of attention is required, away from the individual experience of work and family and toward understanding how identity and status are defined at work. Several factors enshrine cherished identities around current workplace norms. The work devotion schema demands that those who are truly committed to their work will make it the central or sole focus of their lives, without family demands to distract them. Importantly, the work devotion schema underwrites valued class and gender identities: Work devotion is a key way of enacting elite class status and functions as the measure of a man--the longer the work hours and higher the demand for his attention, the better. Advocating change in the way work is done and life is lived meets resistance because it places these cherished identities at risk. Resistance to these identity threats keeps current workplace norms in place. This is why even the business case-which shows that current practices are not economically efficient-fails to persuade organizations to enact change. What is needed now is sustained attention to the implicit psychological infrastructure that cements the mismatch between today's workplace and today's workforce.

"More Religion in Education and More Education in Religion": Liberal Progressivism and the Educational "Common Faith," 1917-1940

ERIC Educational Resources Information Center

Setran, David P.

2012-01-01

Background/Context: Educational historians have given a great deal of attention to the early-twentieth-century growth, development, and implementation of liberal progressive educational theories and techniques. However, with the exception of a few scholars, they have devoted far less attention to the religious dimensions of liberal progressive…

WOMEN’S RELIGIOUS AUTHORITY IN A SUB-SAHARAN SETTING

PubMed Central

AGADJANIAN, VICTOR

2015-01-01

Western scholarship on religion and gender has devoted considerable attention to women’s entry into leadership roles across various religious traditions and denominations. However, very little is known about the dynamics of women’s religious authority and leadership in developing settings, especially in sub-Saharan Africa, a region of powerful and diverse religious expressions. This study employs a combination of uniquely rich and diverse data to examine women’s formal religious authority in a predominantly Christian setting in Mozambique. I first use survey data to test hypotheses regarding the prevalence and patterns of women’s formal leadership across different denominational groups. I then support and extend the quantitative results with insights on pathways and consequences of women’s ascent to formal congregation authority drawn from qualitative data. The analysis illustrates how women’s religious authority both defies and reasserts the gendered constraints of the religious marketplace and the broader gender ideology in this developing context. PMID:27011432

Conservation of wading birds

USGS Publications Warehouse

Kushlan, J.A.

1996-01-01

The conservation and management of wading birds has received considerable attention over the past twenty years, through research, population monitoring, habitat protection, and through activities of specialist groups devoted to all three groups, the herons, ibises and allies, and flamingos. While populations are best known in North America, greatest advances in knowledge may have come in Australasia. The status of most species and many populations is now sufficiently known to allow assessment of risk. Conservation and management techniques allow creation of global and regional action plans for conservation of many species. Global action plans are being developed, but few regional plans have been undertaken. Management of nesting sites is now particularly well appreciated. Although known in broad stroke, much remains to be learned about managing feeding habitat. Problems related to disturbance, conflict with humans, habitat loss, contaminants and other environmental stresses remain for some species and many populations. New challenges lie in creating conservation action that account for genetic stocks.

Trial watch: Immune checkpoint blockers for cancer therapy.

PubMed

Vanpouille-Box, Claire; Lhuillier, Claire; Bezu, Lucillia; Aranda, Fernando; Yamazaki, Takahiro; Kepp, Oliver; Fucikova, Jitka; Spisek, Radek; Demaria, Sandra; Formenti, Silvia C; Zitvogel, Laurence; Kroemer, Guido; Galluzzi, Lorenzo

2017-01-01

Immune checkpoint blockers (ICBs) are literally revolutionizing the clinical management of an ever more diversified panel of oncological indications. Although considerable attention persists around the inhibition of cytotoxic T lymphocyte-associated protein 4 (CTLA4) and programmed cell death 1 (PDCD1, best known as PD-1) signaling, several other co-inhibitory T-cell receptors are being evaluated as potential targets for the development of novel ICBs. Moreover, substantial efforts are being devoted to the identification of biomarkers that reliably predict the likelihood of each patient to obtain clinical benefits from ICBs in the absence of severe toxicity. Tailoring the delivery of specific ICBs or combinations thereof to selected patient populations in the context of precision medicine programs constitutes indeed a major objective of the future of ICB-based immunotherapy. Here, we discuss recent preclinical and clinical advances on the development of ICBs for oncological indications.

Attempted suicide by cop: a case study of traumatic brain injury and the insanity defense.

PubMed

Bresler, Scott; Scalora, Mario J; Elbogen, Eric B; Moore, Y Scott

2003-01-01

Over the years, there have been a number of well-publicized incidents involving persons who seemingly maneuver police officers into shooting them. Such cases, while relatively rare compared with most forms of violence, nevertheless pose difficult challenges to law enforcement agencies. Relatively little is known about persons who engage in suicide by cop incidents. To our knowledge, there has been no published indepth research on instigators of suicide by cop who survived. In this paper, we present a case study of an individual who engaged in and lived through three separate "attempted suicide by cop" incidents. After describing relevant history as well as events of the most recent incident, we compare the case with the extant literature on suicide by cop and analyze commonalities and differences. Finally, we examine the legal considerations involved, with particular attention devoted to the role the individual's traumatic brain injury played in applying the insanity defense.

Listening, watching, and reading: the structure and correlates of entertainment preferences.

PubMed

Rentfrow, Peter J; Goldberg, Lewis R; Zilca, Ran

2011-04-01

People spend considerable amounts of time and money listening to music, watching TV and movies, and reading books and magazines, yet almost no attention in psychology has been devoted to understanding individual differences in preferences for such entertainment. The present research was designed to examine the structure and correlates of entertainment genre preferences. Analyses of the genre preferences of more than 3,000 individuals revealed a remarkably clear factor structure. Using multiple samples, methods, and geographic regions, data converged to reveal five entertainment-preference dimensions: Communal, Aesthetic, Dark, Thrilling, and Cerebral. Preferences for these entertainment dimensions were uniquely related to demographics and personality traits. Results also indicated that personality accounted for significant proportions of variance in entertainment preferences over and above demographics. The results provide a foundation for developing and testing hypotheses about the psychology of entertainment preferences. © 2011 The Authors. Journal of Personality © 2011, Wiley Periodicals, Inc.

Cobalt-catalysed site-selective intra- and intermolecular dehydrogenative amination of unactivated sp3 carbons

PubMed Central

Wu, Xuesong; Yang, Ke; Zhao, Yan; Sun, Hao; Li, Guigen; Ge, Haibo

2015-01-01

Cobalt-catalysed sp2 C–H bond functionalization has attracted considerable attention in recent years because of the low cost of cobalt complexes and interesting modes of action in the process. In comparison, much less efforts have been devoted to the sp3 carbons. Here we report the cobalt-catalysed site-selective dehydrogenative cyclization of aliphatic amides via a C–H bond functionalization process on unactivated sp3 carbons with the assistance of a bidentate directing group. This method provides a straightforward synthesis of monocyclic and spiro β- or γ-lactams with good to excellent stereoselectivity and functional group tolerance. In addition, a new procedure has been developed to selectively remove the directing group, which enables the synthesis of free β- or γ-lactam compounds. Furthermore, the first cobalt-catalysed intermolecular dehydrogenative amination of unactivated sp3 carbons is also realized. PMID:25753366

Attending to the role of race/ethnicity in family violence research.

PubMed

Malley-Morrison, Kathleen; Hines, Denise A

2007-08-01

Since the 1970s, researchers and public health and/or social policy communities have devoted increasing attention to family violence. Although officially reported crime figures for family violence appear to be declining, rates continue to be high in broadly defined racial and/or ethnic minority groups. More careful assessments of the potential role of race/ethnicity in family violence, and similarities and differences occurring across and within groups categorized based on race/ethnicity, are essential if adequate interventions are to be developed and utilized. This article provides suggestions on conducting better studies on family violence in the United States, particularly with respect to issues of race/ethnicity. The authors begin by considering conceptions and definitions of race/ethnicity and providing a broad definition of family violence. They then suggest issues for consideration at each stage of the research process, from reviewing previous research, to making methodological decisions, selecting samples, choosing measures, and analyzing and interpreting findings.

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

Shamir, M. F., E-mail: farasat.shamir@nu.edu.pk

Modified theories of gravity have attracted much attention of the researchers in the recent years. In particular, the f(R) theory has been investigated extensively due to important f(R) gravity models in cosmological contexts. This paper is devoted to exploring an anisotropic universe in metric f(R) gravity. A locally rotationally symmetric Bianchi type I cosmological model is considered for this purpose. Exact solutions of modified field equations are obtained for a well-known f(R) gravity model. The energy conditions are also discussed for the model under consideration. The viability of the model is investigated via graphical analysis using the present-day values ofmore » cosmological parameters. The model satisfies null energy, weak energy, and dominant energy conditions for a particular range of the anisotropy parameter while the strong energy condition is violated, which shows that the anisotropic universe in f(R) gravity supports the crucial issue of accelerated expansion of the universe.« less

Littoral foraging by red phalaropes during spring in the northern Bering Sea

USGS Publications Warehouse

Haney, J. Christopher; Stone, Amy E.

1988-01-01

Phalaropes demonstrate considerable plasticity in their choice of foraging habitats. The Red Phalarope (Phalaropus fulicaria) alternates use of pelagic environments in winter and migration (Taning 1933, Stanford 1953, Briggs et al 1984) with wet tundra habitats during the breeding season (Kistchinski 1975, Mayfield 1979, Ridley 1980). Foods available and taken in littoral zones of the Arctic Ocean in fall have been identified (Conners and Risebrough 1978, Johnson and Richardson 1980), but otherwise little attention has been devoted to the transition between the marine and terrestrial periods of the Red Phalarope’s life history. We report phalarope use of littoral areas during spring in the northern Bering Sea and Kongkok Bay, St. Lawrence Island, Alaska. In addition, we describe phalarope foraging tactics and foods available in the sur zone, emphasizing this form of littoral foraging as an opportunistic and facultative feeding strategy.

Sub-Selective Quantization for Learning Binary Codes in Large-Scale Image Search.

PubMed

Li, Yeqing; Liu, Wei; Huang, Junzhou

2018-06-01

Recently with the explosive growth of visual content on the Internet, large-scale image search has attracted intensive attention. It has been shown that mapping high-dimensional image descriptors to compact binary codes can lead to considerable efficiency gains in both storage and performing similarity computation of images. However, most existing methods still suffer from expensive training devoted to large-scale binary code learning. To address this issue, we propose a sub-selection based matrix manipulation algorithm, which can significantly reduce the computational cost of code learning. As case studies, we apply the sub-selection algorithm to several popular quantization techniques including cases using linear and nonlinear mappings. Crucially, we can justify the resulting sub-selective quantization by proving its theoretic properties. Extensive experiments are carried out on three image benchmarks with up to one million samples, corroborating the efficacy of the sub-selective quantization method in terms of image retrieval.

Design considerations of manipulator and feel system characteristics in roll tracking

NASA Technical Reports Server (NTRS)

Johnston, Donald E.; Aponso, Bimal L.

1988-01-01

A fixed-base simulation was performed to identify and quantify interactions between the pilot's hand/arm neuromuscular subsystem and such control system features of typical modern fighter aircraft roll rate command mechanizations as: (1) force versus displacement sensing side-stick type manipulator, (2) feel force/displacement gradient, (3) feel system versus command prefilter dynamic lag, and (4) flight control system effective time delay. The experiment encompassed some 48 manipulator/filter/aircraft configurations. Displacement side-stick experiment results are given and compared with the previous force sidestick experiment results. Attention is focused on control bandwidth, excitement (peaking) of the neuromuscular mode, feel force/displacement gradient effects, time delay effects, etc. Section 5 is devoted to experiments with a center-stick in which force versus displacement sensing, feel system lag, and command prefilter lag influences on tracking performance and pilot preference are investigated.

WOMEN'S RELIGIOUS AUTHORITY IN A SUB-SAHARAN SETTING: Dialectics of Empowerment and Dependency.

PubMed

Agadjanian, Victor

2015-12-01

Western scholarship on religion and gender has devoted considerable attention to women's entry into leadership roles across various religious traditions and denominations. However, very little is known about the dynamics of women's religious authority and leadership in developing settings, especially in sub-Saharan Africa, a region of powerful and diverse religious expressions. This study employs a combination of uniquely rich and diverse data to examine women's formal religious authority in a predominantly Christian setting in Mozambique. I first use survey data to test hypotheses regarding the prevalence and patterns of women's formal leadership across different denominational groups. I then support and extend the quantitative results with insights on pathways and consequences of women's ascent to formal congregation authority drawn from qualitative data. The analysis illustrates how women's religious authority both defies and reasserts the gendered constraints of the religious marketplace and the broader gender ideology in this developing context.

Progress in space nuclear reactor power systems technology development - The SP-100 program

NASA Technical Reports Server (NTRS)

Davis, H. S.

1984-01-01

Activities related to the development of high-temperature compact nuclear reactors for space applications had reached a comparatively high level in the U.S. during the mid-1950s and 1960s, although only one U.S. nuclear reactor-powered spacecraft was actually launched. After 1973, very little effort was devoted to space nuclear reactor and propulsion systems. In February 1983, significant activities toward the development of the technology for space nuclear reactor power systems were resumed with the SP-100 Program. Specific SP-100 Program objectives are partly related to the determination of the potential performance limits for space nuclear power systems in 100-kWe and 1- to 100-MW electrical classes. Attention is given to potential missions and applications, regimes of possible space power applicability, safety considerations, conceptual system designs, the establishment of technical feasibility, nuclear technology, materials technology, and prospects for the future.

Microchemical and microstructural characterisation of medieval and post-medieval ceramic glaze coatings

NASA Astrophysics Data System (ADS)

Alaimo, R.; Bultrini, G.; Fragalà, I.; Giarrusso, R.; Montana, G.

A large number of ceramic samples (from the 10th to the 19th century), found during the excavation of Sicilian archaeological sites (Syracuse, Caltagirone, Sciacca and Piazza Armerina), have been studied by combining scanning electron microscopy, energy-dispersive X-ray spectrometry and optical microscopy. Attention has been focused on the microchemical and microstructural properties of the painted surfaces to investigate the nature of the enamels and pigments in the decorative layers. The general perspective has been the identification of consistent archeometric criteria, other than the standard stylistic considerations, which can be used for a reliable recognition of the production sites. The results collected for each ceramic typology were used to cluster the different ceramic reference groups in a wide database suitable for a reliable discrimination of the provenance of artefacts. Moreover, the same compositional and microstructural data allow the identification of the raw materials used for pigments. There is evidence of some differences with existing information found in the literature concerning the formulas used in ancient times. Finally, attention has also been devoted to identify the technological aspects of the manufacturing techniques and firing conditions adopted for each typology of glaze coating depending on different ceramic materials .

Establishing a Conceptual Foundation for Addressing Challenges Facing Food-Energy-Water Management

NASA Astrophysics Data System (ADS)

Goldsby, M.; Padowski, J.; Katz, S.; Brady, M.; Hampton, S. E.

2017-12-01

Ensuring the security of food, energy and water in the face of a changing environment is a top societal priority. In order to make sound policy decisions aimed at meeting those needs, policy-makers need decision-relevant information. As such, considerable effort and resources have recently been devoted to investigating the Food-Energy-Water (FEW) Nexus in order to better provide that information. However, despite the increased research activity into FEW systems and FEW problems, little attention has been devoted to the fundamental conceptual issues underlying contemporary FEW systems. Consequently, this inattention has led to conceptual confusion about what is and what is not a FEW system. This project aims to fill that lacuna in order to better facilitate the FEW research agenda. Toward that end, we identify three features that distinguish FEW problems from other resource management problems: (1) the production and management of the resources in each sector of a FEW system is specialized to its own sector; (2) interdependencies exist between sectors such that overproduction in one sector, for example, may have impacts on other sectors; and (3) there are real limits to FEW resource availability as well as limits on the ability to transact across sector boundaries. We contend that once armed with this distinction, one can model the stocks and flows of FEW capital in a conceptually rigorous way that may lead to operational innovations of FEW management.

On The Aerodynamic Heating Of Vega Launcher: Compressible Chimera Navier-Stokes Simulation With Complex Surfaces

NASA Astrophysics Data System (ADS)

Di Mascio, A.; Zaghi, S.; Muscari, R.; Broglia, R.; Cavallini, E.; Favini, B.; Scaccia, A.

2011-05-01

The results of accurate compressible Navier-Stokes simulations of aerodynamic heating of the Vega launcher are presented. Three selected steady conditions of the Vega mission profile are considered: the first corresponding to the altitude of 18 km, the second to 25 km and the last to 33 km. The numerical code is based on the Favre- Average Navier-Stokes equations; the turbulent model chosen for closure is the one-equation model by Spalart- Allmaras. The equations are discretized by a finite volume approach, that can handle block-structured meshes with partial overlap (“Chimera” grid-overlapping technique). The isothermal boundary condition has been applied to the lancher wall. Particular care was devoted to the construction of the discrete model; indeed, the launcher is equipped with many protrusions and geometrical peculiarities (as antennas, raceways, inter-stage connection flanges and retrorockets) that are expected to affect considerably the local thermal flow-field and the level of heat fluxes, because the flow have to undergo strong variation in space; con- sequently, special attention was devoted to the definition of a tailored mesh, capable of catching local details of the aerothermal flow field (shocks, expansion fans, boundary layer, etc..). The computed results are reported together with uncertainty and actual convergence order, that were estimated by the standard procedures suggested by AIAA [Ame98].

The Role of Heterotrophic Microbial Communities in Estuarine C Budgets and the Biogeochemical C Cycle with Implications for Global Warming: Research Opportunities and Challenges.

PubMed

Anderson, O Roger

2016-05-01

Estuaries are among the most productive and economically important marine ecosystems at the land-ocean interface and contribute significantly to exchange of CO2 with the atmosphere. Estuarine microbial communities are major links in the biogeochemical C cycle and flow of C in food webs from primary producers to higher consumers. Considerable attention has been given to bacteria and autotrophic eukaryotes in estuarine ecosystems, but less research has been devoted to the role of heterotrophic eukaryotic microbes. Current research is reviewed here on the role of heterotrophic eukaryotic microbes in C biogeochemistry and ecology of estuaries, with particular attention to C budgets, trophodynamics, and the metabolic fate of C in microbial communities. Some attention is given to the importance of these processes in climate change and global warming, especially in relation to sources and sinks of atmospheric CO2 , while also documenting the current paucity of research on the role of eukaryotic microbes that contribute to this larger question of C biogeochemistry and the environment. Some recommendations are made for future directions of research and opportunities of applying newer technologies and analytical approaches to a more refined analysis of the role of C in estuarine microbial community processes and the biogeochemical C cycle. © 2015 The Author Journal of Eukaryotic Microbiology © 2015 International Society of Protistologists.

The perfuming of paper - technical and safety problems.

PubMed

Lawton, P D; Forbes, D M

1980-12-01

Synopsis This paper describes the rapid growth and diversity of consumer products based on cellulose fibres since the second world war, paying particular attention to soft tissue. The early use of perfumes as reodorants, based on traditional reodorisation knowledge, quickly gave way to the more sophisticated use of perfumes in their own right as a valuable and sometimes indispensable aid to the marketer of soft tissue. Special attention is devoted to the problem of selecting from the very wide range of perfumery ingredients available to perfumers, those which may be suitable for paper perfumery. The tests to evaluate their suitability are described and some of the results presented. The importance of the phenomena of fixation is examined in view of the nature of the product to be perfumed and its unusually long shelf life. The limitations of odour types available for paper products is discussed and a typical paper perfume formula studied. The paper concludes with an illustrated description of the general methods used today for the manufacture of soft tissue. An appraisal of the various methods that have been tried, and are used today to incorporate perfume into the products is also described. During this latter part of the presentation attention will be focused on the advantages and disadvantages of the methods selected with regard to their efficiency, installation, maintenance commitment and safety considerations.

Attentional biases in body dysmorphic disorder (BDD): Eye-tracking using the emotional Stroop task.

PubMed

Toh, Wei Lin; Castle, David J; Rossell, Susan L

2017-04-01

Body dysmorphic disorder (BDD) is characterised by repetitive behaviours and/or mental acts occurring in response to preoccupations with perceived defects or flaws in physical appearance. This study aimed to examine attentional biases in BDD via the emotional Stroop task with two modifications: i) incorporating an eye-tracking paradigm, and ii) employing an obsessive-compulsive disorder (OCD) control group. Twenty-one BDD, 19 OCD and 21 HC participants, who were age-, sex-, and IQ-matched, were included. A card version of the emotional Stroop task was employed based on seven 10-word lists: (i) BDD-positive, (ii) BDD-negative, (iii) OCD-checking, (iv) OCD-washing, (v) general positive, (vi) general threat, and (vii) neutral (as baseline). Participants were asked to read aloud words and word colours consecutively, thereby yielding accuracy and latency scores. Eye-tracking parameters were also measured. Participants with BDD exhibited significant Stroop interference for BDD-negative words relative to HC participants, as shown by extended colour-naming latencies. In contrast, the OCD group did not exhibit Stroop interference for OCD-related nor general threat words. Only mild eye-tracking anomalies were uncovered in clinical groups. Inspection of individual scanning styles and fixation heat maps however revealed that viewing strategies adopted by clinical groups were generally disorganised, with avoidance of certain disorder-relevant words and considerable visual attention devoted to non-salient card regions. The operation of attentional biases to negative disorder-specific words was corroborated in BDD. Future replication studies using other paradigms are vital, given potential ambiguities inherent in emotional Stroop task interpretation. Copyright © 2017 Elsevier Inc. All rights reserved.

ULTRASONIC MEASUREMENT OF SEDIMENT RESUSPENSION

EPA Science Inventory

Recognizing the need for improved measurement and parameterization of sediment resuspension, this paper presents a review of the major methods now in use for alleviating this need. Special attention is devoted to reviewing methods for obtaining sediment concentration profiles by ...

A focused approach to safety guidebook.

DOT National Transportation Integrated Search

2011-08-23

"The Federal Highway Administration (FHWA) has developed the Focused Approach to Safety in order to better address the most critical safety challenges by devoting additional attention to high priority States. The purpose of the Focused Approach is to...

Influence of Motor Activity on the Development of Voluntary Attention in Children Aged 6-7 Years in Rural and Urban Micro-Community

ERIC Educational Resources Information Center

Zakharova, Larisa M.; Zakharova, Victoria

2018-01-01

The article is devoted to the problem of the influence of physical activity on the development of voluntary attention in children aged 5-7, which largely determines the success of schooling. The studies conducted in different countries prove the existence of such a correlation, which, at the same time, is not always unambiguous. We studied the…

On the acquisition and representation of procedural knowledge

NASA Technical Reports Server (NTRS)

Saito, T.; Ortiz, C.; Loftin, R. B.

1992-01-01

Historically knowledge acquisition has proven to be one of the greatest barriers to the development of intelligent systems. Current practice generally requires lengthy interactions between the expert whose knowledge is to be captured and the knowledge engineer whose responsibility is to acquire and represent knowledge in a useful form. Although much research has been devoted to the development of methodologies and computer software to aid in the capture and representation of some of some types of knowledge, little attention has been devoted to procedural knowledge. NASA personnel frequently perform tasks that are primarily procedural in nature. Previous work is reviewed in the field of knowledge acquisition and then focus on knowledge acquisition for procedural tasks with special attention devoted to the Navy's VISTA tool. The design and development is described of a system for the acquisition and representation of procedural knowledge-TARGET (Task Analysis and Rule Generation Tool). TARGET is intended as a tool that permits experts to visually describe procedural tasks and as a common medium for knowledge refinement by the expert and knowledge engineer. The system is designed to represent the acquired knowledge in the form of production rules. Systems such as TARGET have the potential to profoundly reduce the time, difficulties, and costs of developing knowledge-based systems for the performance of procedural tasks.

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

Not Available

It has been five years since the last in-depth American College of Nuclear Physicians/Society of Nuclear Medicine Symposium on the subject of single photon emission computed tomography (SPECT) was held. Because this subject was nominated as the single most desired topic we have selected SPECT imaging as the basis for this year's program. The objectives of this symposium are to survey the progress of SPECT clinical applications that have taken place over the last five years and to provide practical and timely guidelines to users of SPECT so that this exciting imaging modality can be fully integrated into the evaluationmore » of pathologic processes. The first half was devoted to a consideration of technical factors important in SPECT acquisition and the second half was devoted to those organ systems about which sufficient clinical SPECT imaging data are available. With respect to the technical aspect of the program we have selected the key areas which demand awareness and attention in order to make SPECT operational in clinical practice. These include selection of equipment, details of uniformity correction, utilization of phantoms for equipment acceptance and quality assurance, the major aspect of algorithms, an understanding of filtered back projection and appropriate choice of filters and an awareness of the most commonly generated artifacts and how to recognize them. With respect to the acquisition and interpretation of organ images, the faculty will present information on the major aspects of hepatic, brain, cardiac, skeletal, and immunologic imaging techniques. Individual papers are processed separately for the data base. (TEM)« less

[Sensory integration: hierarchy and synchronization].

PubMed

Kriukov, V I

2005-01-01

This is the first in the series of mini-reviews devoted to the basic problems and most important effects of attention in terms of neuronal modeling. We believe that the absence of the unified view on wealth of new date on attention is the main obstacle for further understanding of higher nervous activity. The present work deals with the main ground problem of reconciling two competing architectures designed to integrate the sensory information in the brain. The other mini-reviews will be concerned with the remaining five or six problems of attention, all of them to be ultimately resolved uniformly in the framework of small modification of dominant model of attention and memory.

Crew Roles and Interactions in Scientific Space Exploration

NASA Technical Reports Server (NTRS)

Love, Stanley G.; Bleacher, Jacob E.

2013-01-01

Future piloted space exploration missions will focus more on science than engineering, a change which will challenge existing concepts for flight crew tasking and demand that participants with contrasting skills, values, and backgrounds learn to cooperate as equals. In terrestrial space flight analogs such as Desert Research And Technology Studies, engineers, pilots, and scientists can practice working together, taking advantage of the full breadth of all team members training to produce harmonious, effective missions that maximize the time and attention the crew can devote to science. This paper presents, in a format usable as a reference by participants in the field, a successfully tested crew interaction model for such missions. The model builds upon the basic framework of a scientific field expedition by adding proven concepts from aviation and human spaceflight, including expeditionary behavior and cockpit resource management, cooperative crew tasking and adaptive leadership and followership, formal techniques for radio communication, and increased attention to operational considerations. The crews of future spaceflight analogs can use this model to demonstrate effective techniques, learn from each other, develop positive working relationships, and make their expeditions more successful, even if they have limited time to train together beforehand. This model can also inform the preparation and execution of actual future spaceflights.

Crew roles and interactions in scientific space exploration

NASA Astrophysics Data System (ADS)

Love, Stanley G.; Bleacher, Jacob E.

2013-10-01

Future piloted space exploration missions will focus more on science than engineering, a change which will challenge existing concepts for flight crew tasking and demand that participants with contrasting skills, values, and backgrounds learn to cooperate as equals. In terrestrial space flight analogs such as Desert Research And Technology Studies, engineers, pilots, and scientists can practice working together, taking advantage of the full breadth of all team members' training to produce harmonious, effective missions that maximize the time and attention the crew can devote to science. This paper presents, in a format usable as a reference by participants in the field, a successfully tested crew interaction model for such missions. The model builds upon the basic framework of a scientific field expedition by adding proven concepts from aviation and human space flight, including expeditionary behavior and cockpit resource management, cooperative crew tasking and adaptive leadership and followership, formal techniques for radio communication, and increased attention to operational considerations. The crews of future space flight analogs can use this model to demonstrate effective techniques, learn from each other, develop positive working relationships, and make their expeditions more successful, even if they have limited time to train together beforehand. This model can also inform the preparation and execution of actual future space flights.

Is polygyny a risk factor for poor growth performance among Tanzanian agropastoralists?

PubMed

Hadley, Craig

2005-04-01

Anthropologists and demographers have devoted considerable attention to testing the fertility-polygyny hypothesis, which posits that polygynously married women have lower fertility than their monogamously married counterparts. Much less attention has been paid to the potential impact of polygynous marriages on the health and well-being of children. The objective of this paper was to assess whether polygynous marital status is a risk factor for poor nutritional status and growth performance among a cohort of young Tanzanian children. Using data collected from both wet and dry season periods, we tested for an association from both cross-sectional and longitudinal perspectives. Despite relatively high nutritional status compared to other agropastoralists and horticultural populations, as well as the presence of various socioecological factors that were expected to mitigate any "costs" to polygynous marriage, we found that among our target population, polygynous marital status is a risk factor for poor growth performance. This association is most pronounced in the wet season, and maintains even after allowing for the potential influences of child age and sex, and household characteristics. These results counter our original expectation, and suggest that polygyny is costly to children in this population; this does not appear to be the result of difference in early child environment or household wealth.

A comprehensive review of electrocoagulation for water treatment: Potentials and challenges.

PubMed

Moussa, Dina T; El-Naas, Muftah H; Nasser, Mustafa; Al-Marri, Mohammed J

2017-01-15

Electrocoagulation is an effective electrochemical approach for the treatment of different types of contaminated water and has received considerable attention in recent years due its high efficiency in dealing with numerous stubborn pollutants. It has been successful in dealing with organic and inorganic contaminants with negligible or almost no generation of by-product wastes. During the past decade, vast amount of research has been devoted to utilizing electrocoagulation for the treatment of several types of wastewater, ranging from polluted groundwater to highly contaminated refinery wastewater. This paper offers a comprehensive review of recent literature that has been dedicated to utilizing electrocoagulation for water treatment, focusing on current successes on specific applications in water and wastewater treatment, as well as potentials for future applications. The paper examines such aspects as theory, potential applications, current challenges, recent developments as well as economical concerns associated with the technology. Most of the recent EC research has been focusing on pollutant-specific evaluation without paying attention to cell design, process modeling or industrial applications. This review attempts to highlight the main achievements in the area and outlines the major shortcomings with recommendations for promising research options that can enhance the technology and broaden its range of applications. Copyright © 2016 Elsevier Ltd. All rights reserved.

Event Management for Teacher-Coaches: Risk and Supervision Considerations for School-Based Sports

ERIC Educational Resources Information Center

Paiement, Craig A.; Payment, Matthew P.

2011-01-01

A professional sports event requires considerable planning in which years are devoted to the success of that single activity. School-based sports events do not have that luxury, because high schools across the country host athletic events nearly every day. It is not uncommon during the fall sports season for a combination of boys' and girls'…

Effects of Wheel-Load Spatial Repeatability on Road Damage : A Literature Review

DOT National Transportation Integrated Search

1998-09-01

Concerns about growing governmental budgetary deficits and the awareness of the economic advantages associated with a safe and well-maintained road infrastructure are two of the main reasons for devoting attention to better understanding the problem ...

Socio-cultural impacts of contemporary tourism.

PubMed

Jovicić, Dobrica

2011-06-01

The topic of the paper is devoted to analysis of socio-cultural impacts of tourism, as effects on the people of host communities resulting from their direct and indirect associations with tourists. The social and cultural impacts of tourism are the ways in which tourism is contributing to changes in value systems, individual behavior, family structure and relationships, collective lifestyles, safety levels, moral conduct, traditional ceremonies and community organizations. Special attention is devoted to considering complexity of tourists/host interrelationships and discussing the techniques for appraisal of quality and quantity of socio-cultural changes which tourism provokes in local communities.

Environmental Assessment for Sustainability and Resiliency for Ecological and Human Health

PubMed Central

Burger, Joanna; Gochfeld, Michael; Clarke, James; Jeitner, Christian; Pittfield, Taryn

2015-01-01

Considerable attention has been devoted to environmental assessment and monitoring, primarily by physical and biological scientists, and more recently by social scientists. However, population growth and global change have resulted in an imperative to assess the resiliency of the environment to adapt to large scale changes and to continue to produce goods and services for future generations (sustainability). Changing land use needs or expectations may require the remediation and restoration of degraded or contaminated land. This paper provides an overview of monitoring types, and discusses how indicators for the different monitoring types can be developed to address questions of ecological health, human health, and whether restoration and remediation are effective. We suggest that along with more traditional types of monitoring, agencies should consider recovery indicators or metrics, as well as resiliency metrics. We suggest that one goal of assessment should be to determine if management, remediation, restoration, and mitigation reduce recovery time, thus reducing community vulnerability and enhancing resiliency to environmental stressors and disasters. PMID:27468428

Chemistry and biology of natural and designed enediynes.

PubMed Central

Nicolaou, K C; Smith, A L; Yue, E W

1993-01-01

Ever since the initial reports of the enediyne anticancer antibiotics in the late 1980s, researchers from a number of disciplines have been devoting increasing attention to their chemistry, biology, and potential medical applications. Synthetic chemists and molecular designers have been engaged in attempts to synthesize these molecules and to model their unique architecture. Considerable efforts have been directed at understanding and mimicking the various processes involved in the targeting, activation, and DNA cleavage associated with these natural products. This review summarizes the main contributions to the field, with particular emphasis on work from our laboratories. Highlights include studies of the Bergman reaction, which is central to the mechanism of action of enediynes, the design and chemical synthesis of a number of these systems, and biological studies with selected molecules. Finally, the total synthesis of calicheamicin gamma 1I, the most prominent member of this class of naturally occurring compounds, is discussed. Images Fig. 2 Fig. 5 Fig. 6 PMID:8327459

The study on stage financing model of IT project investment.

PubMed

Chen, Si-hua; Xu, Sheng-hua; Lee, Changhoon; Xiong, Neal N; He, Wei

2014-01-01

Stage financing is the basic operation of venture capital investment. In investment, usually venture capitalists use different strategies to obtain the maximum returns. Due to its advantages to reduce the information asymmetry and agency cost, stage financing is widely used by venture capitalists. Although considerable attentions are devoted to stage financing, very little is known about the risk aversion strategies of IT projects. This paper mainly addresses the problem of risk aversion of venture capital investment in IT projects. Based on the analysis of characteristics of venture capital investment of IT projects, this paper introduces a real option pricing model to measure the value brought by the stage financing strategy and design a risk aversion model for IT projects. Because real option pricing method regards investment activity as contingent decision, it helps to make judgment on the management flexibility of IT projects and then make a more reasonable evaluation about the IT programs. Lastly by being applied to a real case, it further illustrates the effectiveness and feasibility of the model.

The Study on Stage Financing Model of IT Project Investment

PubMed Central

Xu, Sheng-hua; Xiong, Neal N.

2014-01-01

Stage financing is the basic operation of venture capital investment. In investment, usually venture capitalists use different strategies to obtain the maximum returns. Due to its advantages to reduce the information asymmetry and agency cost, stage financing is widely used by venture capitalists. Although considerable attentions are devoted to stage financing, very little is known about the risk aversion strategies of IT projects. This paper mainly addresses the problem of risk aversion of venture capital investment in IT projects. Based on the analysis of characteristics of venture capital investment of IT projects, this paper introduces a real option pricing model to measure the value brought by the stage financing strategy and design a risk aversion model for IT projects. Because real option pricing method regards investment activity as contingent decision, it helps to make judgment on the management flexibility of IT projects and then make a more reasonable evaluation about the IT programs. Lastly by being applied to a real case, it further illustrates the effectiveness and feasibility of the model. PMID:25147845

Hybrid battery/supercapacitor energy storage system for the electric vehicles

NASA Astrophysics Data System (ADS)

Kouchachvili, Lia; Yaïci, Wahiba; Entchev, Evgueniy

2018-01-01

Electric vehicles (EVs) have recently attracted considerable attention and so did the development of the battery technologies. Although the battery technology has been significantly advanced, the available batteries do not entirely meet the energy demands of the EV power consumption. One of the key issues is non-monotonic consumption of energy accompanied by frequent changes during the battery discharging process. This is very harmful to the electrochemical process of the battery. A practical solution is to couple the battery with a supercapacitor, which is basically an electrochemical cell with a similar architecture, but with a higher rate capability and better cyclability. In this design, the supercapacitor can provide the excess energy required while the battery fails to do so. In addition to the battery and supercapacitor as the individual units, designing the architecture of the corresponding hybrid system from an electrical engineering point of view is of utmost importance. The present manuscript reviews the recent works devoted to the application of various battery/supercapacitor hybrid systems in EVs.

Planning for Future Care and the End of Life: A Qualitative Analysis of Gay, Lesbian, and Heterosexual Couples.

PubMed

Thomeer, Mieke Beth; Donnelly, Rachel; Reczek, Corinne; Umberson, Debra

2017-12-01

Two key components of end-of-life planning are (1) informal discussions about future care and other end-of-life preferences and (2) formal planning via living wills and other legal documents. We leverage previous work on the institutional aspects of marriage and on sexual-minority discrimination to theorize why and how heterosexual, gay, and lesbian married couples engage in informal and formal end-of-life planning. We analyze qualitative dyadic in-depth interviews with 45 midlife gay, lesbian, and heterosexual married couples ( N = 90 spouses). Findings suggest that same-sex spouses devote considerable attention to informal planning conversations and formal end-of-life plans, while heterosexual spouses report minimal formal or informal planning. The primary reasons same-sex spouses give for making end-of-life preparations are related to the absence of legal protections and concerns about discrimination from families. These findings raise questions about future end-of-life planning for same- and different-sex couples given a rapidly shifting legal and social landscape.

How alternative payment models in emergency medicine can benefit physicians, payers, and patients.

PubMed

Harish, Nir J; Miller, Harold D; Pines, Jesse M; Zane, Richard D; Wiler, Jennifer L

2017-06-01

While there has been considerable effort devoted to developing alternative payment models (APMs) for primary care physicians and for episodes of care beginning with inpatient admissions, there has been relatively little attention by payers to developing APMs for specialty ambulatory care, and no efforts to develop APMs that explicitly focus on emergency care. In order to ensure that emergency care is appropriately integrated and valued in future payment models, emergency physicians (EPs) must engage with the stakeholders within the broader health care system. In this article, we describe a framework for the development of APMs for emergency medicine and present four examples of APMs that may be applicable in emergency medicine. A better understanding of how APMs can work in emergency medicine will help EPs develop new APMs that improve the cost and quality of care, and leverage the value that emergency care brings to the system. Copyright © 2017 Elsevier Inc. All rights reserved.

Shock waves and shock tubes; Proceedings of the Fifteenth International Symposium, Berkeley, CA, July 28-August 2, 1985

NASA Technical Reports Server (NTRS)

Bershader, D. (Editor); Hanson, R. (Editor)

1986-01-01

A detailed survey is presented of shock tube experiments, theoretical developments, and applications being carried out worldwide. The discussions explore shock tube physics and the related chemical, physical and biological science and technology. Extensive attention is devoted to shock wave phenomena in dusty gases and other multiphase and heterogeneous systems, including chemically reactive mixtures. Consideration is given to techniques for measuring, visualizing and theoretically modeling flowfield, shock wave and rarefaction wave characteristics. Numerical modeling is explored in terms of the application of computational fluid dynamics techniques to describing flowfields in shock tubes. Shock interactions and propagation, in both solids, fluids, gases and mixed media are investigated, along with the behavior of shocks in condensed matter. Finally, chemical reactions that are initiated as the result of passage of a shock wave are discussed, together with methods of controlling the evolution of laminar separated flows at concave corners on advanced reentry vehicles.

Shock waves and shock tubes; Proceedings of the Fifteenth International Symposium, Berkeley, CA, July 28-August 2, 1985

NASA Astrophysics Data System (ADS)

Bershader, D.; Hanson, R.

A detailed survey is presented of shock tube experiments, theoretical developments, and applications being carried out worldwide. The discussions explore shock tube physics and the related chemical, physical and biological science and technology. Extensive attention is devoted to shock wave phenomena in dusty gases and other multiphase and heterogeneous systems, including chemically reactive mixtures. Consideration is given to techniques for measuring, visualizing and theoretically modeling flowfield, shock wave and rarefaction wave characteristics. Numerical modeling is explored in terms of the application of computational fluid dynamics techniques to describing flowfields in shock tubes. Shock interactions and propagation, in both solids, fluids, gases and mixed media are investigated, along with the behavior of shocks in condensed matter. Finally, chemical reactions that are initiated as the result of passage of a shock wave are discussed, together with methods of controlling the evolution of laminar separated flows at concave corners on advanced reentry vehicles.

The research imperative revisited: considerations for advancing the debate surrounding medical research as moral imperative.

PubMed

Wayne, Katherine; Glass, Kathleen Cranley

2010-01-01

Medical research is frequently regarded as not only laudable, but even obligatory. However, the moral foundation for such an obligation is far from clear. Lively debate concerning the viability of an obligation to conduct and support medical research is transpiring among a small number of scholars speaking from a variety of backgrounds, yet the current discussion is predominantly situated within several discrete academic and professional circles, allowing only sporadic engagement within and between scholarly disciplines and the medical realm. We aim to lay the groundwork for a focused critique of the "research imperative" by examining (1) its commitments within ideologies of science, medicine, and progress: and (2) its normative theoretical underpinnings. Our analysis finds no solid grounding for the research imperative and exposes problems in the attitudes and arguments supporting it. We believe these concerns present compelling reasons for devoting greater critical attention to the research imperative and to the morality of the medical research enterprise as a whole.

Hospital acquisitions, parenting styles and management accounting change: An institutional perspective.

PubMed

Dossi, Andrea; Lecci, Francesca; Longo, Francesco; Morelli, Marco

2017-02-01

Many healthcare scholars have applied institutional theories to the study of management accounting systems (MAS) change. However, little attention has been devoted to MAS change within groups. Kostova et al. highlight the limitations of traditional institutional frameworks in studying groups since they are characterised not only by the existence of external institutional environments but also by intra-organisational (meso-level) ones. Given this background, the research question is: how does the meso-level institutional environment affect MAS change in healthcare groups? We use a longitudinal multiple-case study design to understand the role of headquarters in shaping local MAS change. We would expect companies to adopt similar MAS. However, we argue that the relationship between external institutions and MAS change cannot be wholly understood without taking into consideration the role of headquarters. Our analysis shows how hospitals facing the same external institutional environment implement different MAS as a consequence of different parenting styles. From a scientific perspective, our article contributes to broaden traditional institutional theoretical frameworks.

The Changing Landscape for the Elimination of Racial/Ethnic Health Status Disparities

PubMed Central

Walker, Bailus; Mays, Vickie M.; Warren, Rueben

2013-01-01

The elimination of racial/ethnic health status disparities is a compelling national health objective. It was etched in sharp relief by the 1985 report of the U.S. Department of Health and Human Services Secretary’s Task Force on Black and Minority Health and considerable attention has been devoted to the problem since that report. But the problem persists, disparities are not fully explained and effective policies to reduce them have been elusive, a situation presenting both opportunities and challenges. Important advances towards reducing racial/ethnic health disparities may be made by better understanding the complex bidirectional relationship between and among the multiple factors, biological and non-biological, influencing morbidity and mortality. The landscape in which these influences are felt is anything but static. In this paper selected components of the landscape that are critical to the elimination of racial/ethnic health status disparities are reviewed. These factors underscore the importance of adopting and maintaining a perspective on health disparities that encompasses a broad array of health determinants. PMID:15531810

Charge Dynamics in near-Surface, Variable-Density Ensembles of Nitrogen-Vacancy Centers in Diamond.

PubMed

Dhomkar, Siddharth; Jayakumar, Harishankar; Zangara, Pablo R; Meriles, Carlos A

2018-06-13

Although the spin properties of superficial shallow nitrogen-vacancy (NV) centers have been the subject of extensive scrutiny, considerably less attention has been devoted to studying the dynamics of NV charge conversion near the diamond surface. Using multicolor confocal microscopy, here we show that near-surface point defects arising from high-density ion implantation dramatically increase the ionization and recombination rates of shallow NVs compared to those in bulk diamond. Further, we find that these rates grow linearly, not quadratically, with laser intensity, indicative of single-photon processes enabled by NV state mixing with other defect states. Accompanying these findings, we observe NV ionization and recombination in the dark, likely the result of charge transfer to neighboring traps. Despite the altered charge dynamics, we show that one can imprint rewritable, long-lasting patterns of charged-initialized, near-surface NVs over large areas, an ability that could be exploited for electrochemical biosensing or to optically store digital data sets with subdiffraction resolution.

Use of the superpopulation approach to estimate breeding population size: An example in asynchronously breeding birds

USGS Publications Warehouse

Williams, K.A.; Frederick, P.C.; Nichols, J.D.

2011-01-01

Many populations of animals are fluid in both space and time, making estimation of numbers difficult. Much attention has been devoted to estimation of bias in detection of animals that are present at the time of survey. However, an equally important problem is estimation of population size when all animals are not present on all survey occasions. Here, we showcase use of the superpopulation approach to capture-recapture modeling for estimating populations where group membership is asynchronous, and where considerable overlap in group membership among sampling occasions may occur. We estimate total population size of long-legged wading bird (Great Egret and White Ibis) breeding colonies from aerial observations of individually identifiable nests at various times in the nesting season. Initiation and termination of nests were analogous to entry and departure from a population. Estimates using the superpopulation approach were 47-382% larger than peak aerial counts of the same colonies. Our results indicate that the use of the superpopulation approach to model nesting asynchrony provides a considerably less biased and more efficient estimate of nesting activity than traditional methods. We suggest that this approach may also be used to derive population estimates in a variety of situations where group membership is fluid. ?? 2011 by the Ecological Society of America.

The Central Nervous Connections Involved in the Vomiting Reflex

NASA Technical Reports Server (NTRS)

Brizzee, K. R.; Mehler, W. R.

1986-01-01

The vomiting reflex may be elicited by a number of different types or classes of stimuli involving many varieties of receptor structures and considerable diversity in afferent pathways and central connections. Central relay or mediating structures thus may vary widely according to the type of initial emetic stimulus. The emetic circuits which have been most completely delineated to date are probably those in which the Chemoreceptor Trigger Zone (CTZ) in the Area Postrema (AP) functions as a key mediating structure. Even in this system, however, there are large gaps in our knowledge of the nerve tracts and central nervous connections involved. Knowledge of most other emetic circuits subserving the emetic reflex resulting from many diverse types of stimuli such, for example, as emotional stress (e.g. psychogenic vomiting, Wruble et al. 1982), pain (e.g. testicular trauma), and chemical or mechanical irritation of the gastrointestinal tract or urinary tract is quite incomplete at this time, thus precluding any very adequate description of their central connections at present. One physiological system, however, which has received considerable attention recently in relation to the vomiting reflex elicited by motion stimuli is the vestibular system. Due to the paucity of data on central nervous connections of several or the non-vestibular types of emetic stimuli cited above, we will devote most of our attention in this brief review to the central connections of the vestibular system which seem likely to be involved in the vomiting response to motion stimuli. However, the latter part of the review will be concerned with the concept of the reticular vomiting centre in relation to the ParviCellular Reticular Formation (PCRF), and will thus probably pertain to all of the many classes of emetic stimuli since it will address the question of the final common emetic pathway.

Matriculating Masculinity: Understanding Undergraduate Men's Precollege Gender Socialization

ERIC Educational Resources Information Center

Harris, Frank, III; Harper, Shaun R.

2015-01-01

Social scientists, educational researchers, postsecondary educators (including student affairs professionals), and others have attempted to understand problematic behavioral trends and developmental outcomes among undergraduate men. Little attention has been devoted to examining the masculine identities and ideals about manhood that these students…

Essential considerations in developing attention control groups in behavioral research.

PubMed

Aycock, Dawn M; Hayat, Matthew J; Helvig, Ashley; Dunbar, Sandra B; Clark, Patricia C

2018-06-01

Attention control groups strengthen randomized controlled trials of behavioral interventions, but researchers need to give careful consideration to the attention control activities. A comparative effectiveness research framework provides an ideal opportunity for an attention control group as a supplement to standard care, so participants potentially receive benefit regardless of group assignment. The anticipated benefit of the control condition must be independent of the study outcome. Resources needed for attention control activities need to be carefully considered and ethical considerations carefully weighed. In this paper we address nine considerations for the design and implementation of attention control groups: (1) ensure attention control activities are not associated with the outcome; (2) avoid contamination of the intervention or control group; (3) design comparable control and intervention activities; (4) ensure researcher training to adequately administer both treatment arms; (5) design control activities to be interesting and acceptable to participants; (6) evaluate attention control activities; (7) consider additional resources needed to implement attention control activities; (8) quantifying the effects of attention control and intervention groups; and (9) ethical considerations with attention control groups. Examples from the literature and ongoing research are presented. Careful planning for the attention control group is as important as for the intervention group. Researchers can use the considerations presented here to assist in planning for the best attention control group for their study. © 2018 Wiley Periodicals, Inc.

Divided attention interferes with fulfilling activity-based intentions.

PubMed

Brewer, Gene A; Ball, B Hunter; Knight, Justin B; Dewitt, Michael R; Marsh, Richard L

2011-09-01

Two experiments were conducted to examine the effects of divided attention on activity-based prospective memory. After establishing a goal to fulfill an intention upon completion of an ongoing activity, successful completion of the intention generally suffered when attention was being devoted to an additional task (Experiment 1). Forming an implementation intention at encoding ameliorated the negative effects of divided attention (Experiment 2). The results from the present experiments demonstrate that activity-based prospective memory is susceptible to distraction and that implementing encoding strategies that enhance prospective memory performance can reduce this interference. The current work raises interesting questions about the similarities and differences between event- and activity-based prospective memories. Published by Elsevier B.V.

Magazine Educators Consider "Service Journalism" Orientation.

ERIC Educational Resources Information Center

Jeffers, Dennis W.

1990-01-01

Summarizes the debate within magazine journalism education over how much attention to devote to "service journalism," which encompasses informative, how-to articles. Surveys readers of "Angus Journal," a beef industry journal. Suggests a reader preference for service articles over news and human interest content. Reviews the…

LITERATURE FORENSICS? DOOR TO WHAT WAS KNOWN BUT NOW FORGOTTEN

EPA Science Inventory

Science's all-consuming drive to make new discoveries often risks losing sight of what was already known at one time - that which already exists in the published literature. Inadequate attention to the published literature and insufficient time devoted to its mining and synthesis...

With Literacy and Justice for All: The Imperative for a New Domestic Order.

ERIC Educational Resources Information Center

Geiger, Keith

1992-01-01

Calls for new priorities in U.S. federal government that focus on children and deemphasize military spending. All government efforts to improve education will be worthless unless more attention and funding is devoted to children's readiness to learn. (LB)

Geography's Image Crisis.

ERIC Educational Resources Information Center

Hudson, John C.

1984-01-01

If geography faces a crisis today, it is an inner crisis that has come from listening to those who advocate aggrandizement rather than accomplishment. Geographers should devote no more time than necessary to the business of selling themselves and, instead, produce the kind of scholarship that commands attention. (RM)

‘A Plentiful Crop of Cripples Made by All This Progress’: Disability, Artificial Limbs and Working-Class Mutualism in the South Wales Coalfield, 1890–19481

PubMed Central

Curtis, Ben; Thompson, Steven

2014-01-01

Historians of orthopaedics, artificial limbs and disability have devoted a great deal of attention to children and soldiers but have neglected to give sufficient space in their studies to industrial workers, the other patient group that has been identified as crucial to the development of these areas. Furthermore, this attention has led to an imbalanced focus on charitable and philanthropic activities as the main means of assistance and the neglect of a significant part of the voluntary sphere, the labour movement. This article, focusing on industrial south Wales, examines the efforts of working-class organisations to provide artificial limbs and a range of other surgical appliances to workers and their family members in the late nineteenth and early twentieth centuries. It finds that a distinctive, labourist conception of disability existed which envisaged disabled workers as an important priority and one to which significant time, effort and resources were devoted. PMID:25352721

'A Plentiful Crop of Cripples Made by All This Progress': Disability, Artificial Limbs and Working-Class Mutualism in the South Wales Coalfield, 1890-19481.

PubMed

Curtis, Ben; Thompson, Steven

2014-11-01

Historians of orthopaedics, artificial limbs and disability have devoted a great deal of attention to children and soldiers but have neglected to give sufficient space in their studies to industrial workers, the other patient group that has been identified as crucial to the development of these areas. Furthermore, this attention has led to an imbalanced focus on charitable and philanthropic activities as the main means of assistance and the neglect of a significant part of the voluntary sphere, the labour movement. This article, focusing on industrial south Wales, examines the efforts of working-class organisations to provide artificial limbs and a range of other surgical appliances to workers and their family members in the late nineteenth and early twentieth centuries. It finds that a distinctive, labourist conception of disability existed which envisaged disabled workers as an important priority and one to which significant time, effort and resources were devoted.

InP (Indium Phosphide): Into the future

NASA Technical Reports Server (NTRS)

Brandhorst, Henry W., Jr.

1989-01-01

Major industry is beginning to be devoted to indium phosphide and its potential applications. Key to these applications are high speed and radiation tolerance; however the high cost of indium phosphide may be an inhibitor to progress. The broad applicability of indium phosphide to many devices will be discussed with an emphasis on photovoltaics. Major attention is devoted to radiation tolerance and means of reducing cost of devices. Some of the approaches applicable to solar cells may also be relevant to other devices. The intent is to display the impact of visionary leadership in the field and enable the directions and broad applicability of indium phosphide.

We, the American Children.

ERIC Educational Resources Information Center

Hernandez, Donald; Saluter, Arlene; O'Brien, Catherine

This report, based on the 1980 and 1990 Census of Population and Housing, Public Use Microdata Samples, presents statistics on America's U.S. children. The report focuses on family living arrangements and economic circumstances. Special attention is devoted to similarities and differences between non-Hispanic white children and non-Hispanic black…

Construct Validation in Counseling Psychology Research

ERIC Educational Resources Information Center

Hoyt, William T.; Warbasse, Rosalia E.; Chu, Erica Y.

2006-01-01

Counseling psychology researchers devote little attention to theory-based measurement validation, as evidenced by cursory mention of validity issues in the method and discussion sections of published research reports. Especially, many researchers appear unaware of the limitations of correlations between pairs of self-report measures as evidence of…

Setting Standards for Minimum Competency Tests.

ERIC Educational Resources Information Center

Mehrens, William A.

Some general questions about minimum competency tests are discussed, and various methods of setting standards are reviewed with major attention devoted to those methods used for dichotomizing a continuum. Methods reviewed under the heading of Absolute Judgments of Test Content include Nedelsky's, Angoff's, Ebel's, and Jaeger's. These methods are…

Beyond Fees and Charges: The Need for a Pricing Strategy.

ERIC Educational Resources Information Center

Tugman, Sarah Jones

1985-01-01

As citizens demand governmental accountability, recreation agencies must devote attention to determining the cost of programs and to justifying the fee structure assigned to each program. This article addresses the need for proper pricing and offers a plan for establishing a pricing strategy. (MT)

School Crisis Response: Expecting the Unexpected.

ERIC Educational Resources Information Center

Lichtenstein, Robert; And Others

1994-01-01

The typical administrator certification program does not devote specific attention to shootings, suicide, terminal illness, and natural disasters. A crisis of major proportion calls for enlightened leadership: a take-charge manner, combined with effective teamwork and delegation of vital operations. Crisis teams should exist at regional, district,…

The Coming Renaissance in Law and Literature.

ERIC Educational Resources Information Center

Smith, J. Allen

1979-01-01

A renaissance that will strengthen the relationship between law and literature is foreseen and it is suggested that by devoting renewed attention to literature, lawyers can hasten the development of this renaissance. A three-point proposal to aid law schools in this undertaking is offered. (Author/JMD)

Informed Consent in Social Work.

ERIC Educational Resources Information Center

Reamer, Frederic G.

1987-01-01

Traces the evolution of the concept of informed consent and discusses its implications for social work practice. Devotes particular attention to legal statutes and case law with which social workers need to be acquainted to protect client rights and to avoid being held liable for malpractice or negligence. (Author/ABL)

Boundary Management for Cognitive Behavioral Therapies

ERIC Educational Resources Information Center

Gottlieb, Michael C.; Younggren, Jeffrey N.; Murch, Kevin B.

2009-01-01

In recent years, the scholarship regarding professional boundaries has increased significantly in a variety of areas. Despite many advances in this line of research, less attention has been devoted to the question of boundary maintenance and its relationship to theoretical orientation. In this article we examine these issues for…

Assessing School Turnaround: Evidence from Ohio

ERIC Educational Resources Information Center

Player, Daniel; Katz, Veronica

2016-01-01

Policy makers have struggled to find successful approaches to address concentrated, persistent low school achievement. While NCLB and the School Improvement Grant (SIG) program have devoted significant time and attention to turnaround, very little empirical evidence substantiates whether and how these efforts work. This study employs a comparative…

Modulated error diffusion CGHs for neural nets

NASA Astrophysics Data System (ADS)

Vermeulen, Pieter J. E.; Casasent, David P.

1990-05-01

New modulated error diffusion CGHs (computer generated holograms) for optical computing are considered. Specific attention is given to their use in optical matrix-vector, associative processor, neural net and optical interconnection architectures. We consider lensless CGH systems (many CGHs use an external Fourier transform (FT) lens), the Fresnel sampling requirements, the effects of finite CGH apertures (sample and hold inputs), dot size correction (for laser recorders), and new applications for this novel encoding method (that devotes attention to quantization noise effects).

Development of finite element models to predict dynamic bridge response.

DOT National Transportation Integrated Search

1997-10-01

Dynamic response has long been recognized as one of the significant factors affecting the service life and safety of bridge structures. Even though considerable research, both analytical and experimental, has been devoted to dynamic bridge behavior, ...

Foodborne pathogen detection using hyperspectral imaging

USDA-ARS?s Scientific Manuscript database

Foodborne pathogens can cause various diseases and even death when humans consume foods contaminated with microbial pathogens. Traditional culture-based direct plating methods are still the “gold standard” for presumptive-positive pathogen screening. Although considerable research has been devoted t...

Editorial: 2nd Special Issue on behavior change, health, and health disparities.

PubMed

Higgins, Stephen T

2015-11-01

This Special Issue of Preventive Medicine (PM) is the 2nd that we have organized on behavior change, health, and health disparities. This is a topic of fundamental importance to improving population health in the U.S. and other industrialized countries that are trying to more effectively manage chronic health conditions. There is broad scientific consensus that personal behavior patterns such as cigarette smoking, other substance abuse, and physical inactivity/obesity are among the most important modifiable causes of chronic disease and its adverse impacts on population health. As such behavior change needs to be a key component of improving population health. There is also broad agreement that while these problems extend across socioeconomic strata, they are overrepresented among more economically disadvantaged populations and contribute directly to the growing problem of health disparities. Hence, behavior change represents an essential step in curtailing that unsettling problem as well. In this 2nd Special Issue, we devote considerable space to the current U.S. prescription opioid addiction epidemic, a crisis that was not addressed in the prior Special Issue. We also continue to devote attention to the two largest contributors to preventable disease and premature death, cigarette smoking and physical inactivity/obesity as well as risks of co-occurrence of these unhealthy behavior patterns. Across each of these topics we included contributions from highly accomplished policy makers and scientists to acquaint readers with recent accomplishments as well as remaining knowledge gaps and challenges to effectively managing these important chronic health problems. Copyright © 2015 Elsevier Inc. All rights reserved.

Supplemental Instruction for Improving First Year Results in Engineering Studies

ERIC Educational Resources Information Center

Malm, Joakim; Bryngfors, Leif; Morner, Lise-Lotte

2012-01-01

Many studies have been made on the impact of supplemental instruction in supported courses, with most showing significantly better examination results for students attending supplemental instruction in comparison to those who do not. However, remarkably little attention has been devoted to following up whether the benefits of supplemental…

The Differential Impact of Wealth versus Income in the College-Going Process

ERIC Educational Resources Information Center

Jez, Su Jin

2014-01-01

College is increasingly essential for economic and social mobility. Current research and public policy devotes significant attention to race, income, and socioeconomic factors in college access. Yet, wealth's role, as differentiated from income, is largely unexplored. This paper examines the differences between wealth and income in the…

Teacher Judgment in Identifying Gifted/Talented Students

ERIC Educational Resources Information Center

Elhoweris, Hala

2008-01-01

One of the most serious problems plaguing in the field of gifted education is the need for the development of appropriate programs and identification procedures for gifted and talented students from different culturally and diverse backgrounds. Therefore, there has been increased attention and efforts devoted to the academic needs of gifted and…

A Humanities Network Considers What Lies Beyond E-Mail.

ERIC Educational Resources Information Center

Guernsey, Lisa

1997-01-01

H-NET (Humanities and Social Sciences OnLine) is a new, rapidly expanding international online network of scholars that was established to increase electronic mail communication among individuals. Currently, the program is devoting more attention to World Wide Web-related projects providing information and reference sources. Internal conflict…

Prevalence and Correlates of Courtship Violence.

ERIC Educational Resources Information Center

Samios, Mary; And Others

Although previous research has attempted to account for the incidence of physical violence between dating partners, little attention has been devoted to the relationship factors that may account for the occurrence of violence between partners. To examine the relationships among violence and dating partners' love and liking, commitment to the…

Developing and Implementing a Counselor Evaluation Program.

ERIC Educational Resources Information Center

Bell, Priscilla J.; Acker, Kathleen E.

In the past several years, Tacoma Community College (TCC) has devoted increasing attention to evaluating faculty and staff performance. In recognition of the benefits of a growth-oriented evaluation process over a summative evaluation, the counselors and the Dean for Student Services at TCC developed a comprehensive evaluation system for…

Differentiation and Social Selectivity in German Higher Education

ERIC Educational Resources Information Center

Schindler, Steffen; Reimer, David

2011-01-01

In this paper we investigate social selectivity in access to higher education in Germany and, unlike most previous studies, explicitly devote attention to semi-tertiary institutions such as the so-called universities of cooperative education. Drawing on rational choice models of educational decisions we seek to understand which factors influence…

Teaching the Conventions of Academic Discourse

ERIC Educational Resources Information Center

Thonney, Teresa

2011-01-01

Given the current emphasis on disciplinary discourses, it's not surprising that so little recent attention has been devoted to identifying conventions that are universal in academic discourse. In this essay, the author argues that there are shared features that unite academic writing, and that by introducing these features to first-year students…

Attitudes and Motivation in Early Foreign Language Learning

ERIC Educational Resources Information Center

Djigunovic, Jelena Mihaljevic

2012-01-01

This paper focuses on young foreign language learners' attitudes and motivations. An overview is given of the main issues in this research area, based on key European studies. Approaches to studying these affective learner characteristics are described. Some attention is devoted to data elicitation techniques and the importance of triangulation.…

General and Professional Education within the Conception of the Lifelong Learning.

ERIC Educational Resources Information Center

Klapan, Anita; Lavrnja, Ilija

General education and professional education are both important in a learning society. Pedagogy has devoted all its attention to developing general education while regarding professional education as a type of nonobligatory education. From the beginning, general education and professional education have been divided, with the former oriented…

Should Persons with Contagious Diseases Be Barred from School?

ERIC Educational Resources Information Center

Roe, Richard L.

1987-01-01

Reviews recent court decisions regarding whether individuals with contagious diseases may be barred from public schools. Devotes specific attention to the issue of whether certain communicable diseases such as tuberculosis and Acquired Immune Deficiency Syndrome (AIDS) can be classified as handicaps and thereby qualify a person for protection…

Statistical control in hydrologic forecasting.

Treesearch

H.G. Wilm

1950-01-01

With rapidly growing development and uses of water, a correspondingly great demand has developed for advance estimates of the volumes or rates of flow which are supplied by streams. Therefore much attention is being devoted to hydrologic forecasting, and numerous methods have been tested in efforts to make increasingly reliable estimates of future supplies.

The Interplay between Nonsymbolic Number and Its Continuous Visual Properties

ERIC Educational Resources Information Center

Gebuis, Titia; Reynvoet, Bert

2012-01-01

To date, researchers investigating nonsymbolic number processes devoted little attention to the visual properties of their stimuli. This is unexpected, as nonsymbolic number is defined by its visual characteristics. When number changes, its visual properties change accordingly. In this study, we investigated the influence of different visual…

Valuing Women in Management: An Impression Management Perspective of Gender Diversity.

ERIC Educational Resources Information Center

Gardner, William L., III; And Others

1994-01-01

Applies a model of impression management to explore the process whereby women in organizations present themselves to others and the impressions they create. Devotes particular attention to how these impressions influence women's experiences in organizations. Suggests future research direction for clarifying the impact of gender impression and…

Assessing Accomplished Teaching: Good Strides, Great Challenges

ERIC Educational Resources Information Center

Norman, Antony D.

2010-01-01

This article surveys efforts at the national and international level to define and assess accomplished teaching with particular attention devoted to how assessments of accomplished teaching connect to student learning. The author finds that most assessments are based on aspects of teaching that, presumably, come together as accomplished teaching.…

NEEDED RESEARCH ON DIFFUSION WITHIN EDUCATIONAL ORGANIZATIONS.

ERIC Educational Resources Information Center

JAIN, NEMI C.; ROGERS, EVERETT M.

IN SPITE OF THE VOLUME OF RESEARCH ATTENTION DEVOTED TO THE DIFFUSION OF INNOVATIONS, RELATIVELY LITTLE EMPHASIS HAS BEEN PLACED UPON DIFFUSION WITHIN ORGANIZATIONAL STRUCTURES. METHODOLOGICALLY, RELATIONAL ANALYSIS IN WHICH THE UNIT OF ANALYSIS IS A TWO-PERSON INTERACTING PAIR, A MULTIPLE PERSON COMMUNICATION CHAIN, OR CLIQUES OR SUBSYSTEMS IS…

Theorising Student Engagement in Higher Education

ERIC Educational Resources Information Center

Kahn, Peter E.

2014-01-01

Student engagement has become problematic following the rise of mass and universal forms of higher education. Significant attention has been devoted to identifying factors that are associated with higher levels of engagement, but it remains the case that the underlying reasons for student engagement and, indeed, the notion itself of "student…

Cross-National Patterns of Gender Differences in Mathematics: A Meta-Analysis

ERIC Educational Resources Information Center

Else-Quest, Nicole M.; Hyde, Janet Shibley; Linn, Marcia C.

2010-01-01

A gender gap in mathematics achievement persists in some nations but not in others. In light of the underrepresentation of women in careers in science, technology, mathematics, and engineering, increasing research attention is being devoted to understanding gender differences in mathematics achievement, attitudes, and affect. The gender…

Cyber Victimization and Aggression: Are They Linked with Adolescent Smoking and Drinking?

ERIC Educational Resources Information Center

Chan, Sherilynn F.; La Greca, Annette M.

2016-01-01

Background: Adolescent substance use represents a significant public health concern. Growing research has linked peer victimization with substance use among youth; however, less attention has been devoted to the role of cyber victimization specifically, while controlling for peer aggression. Objective: This study examined the unique associations…

Race and Color: Revisiting Perspectives in Black Education

ERIC Educational Resources Information Center

Monroe, Carla R.

2016-01-01

Racial inequities, such as systematic disparities in school discipline and achievement outcomes, are a perennial characteristic of public education in the United States. Although attention to interracial chasms such as the Black-White achievement gap is common, limited efforts are devoted to understanding how and why colorism motivates imbalances…

Post It!--A Cross-Disciplinary Approach to Teach Socioscientific Issues

ERIC Educational Resources Information Center

Rundgren, Shu-Nu Chang

2011-01-01

Various socioscientific issues (SSIs) are emerging in today's science--and technology--dominant society, e.g. genetically modified organisms and global warming. To achieve the goal of scientific literacy, more and more science educators have devoted their attention to enhancing students' understanding of the multidimensional aspects of SSIs as…

Examining the Link between Organizational Democracy and Employees' Moral Development

ERIC Educational Resources Information Center

Pircher Verdorfer, Armin; Weber, Wolfgang G.

2016-01-01

While much is understood about the role of the family context and educational experiences for moral development, less attention has been devoted to the occupational context. In this research, we used Kohlberg's approach of moral education as a framework and investigated the relationship between structurally anchored organizational democracy and…

Under Threes' Mathematical Learning

ERIC Educational Resources Information Center

Franzén, Karin

2015-01-01

The article focuses on mathematics for toddlers in preschool, with the aim of challenging a strong learning discourse that mainly focuses on cognitive learning. By devoting more attention to other perspectives on learning, the hope is to better promote children's early mathematical development. Sweden is one of few countries to have a curriculum…

Guidance in the Middle Schools.

ERIC Educational Resources Information Center

New York City Board of Education, Brooklyn, NY. Bureau of Curriculum Development.

This publication is designed to assist the guidance counselor, the administrator, the supervisors, and other members of the school staff to integrate a developmental guidance program into the total educational process of the preadolescent in an urban society. Special attention is devoted to appropriate topics and techniques for use in individual…

The Organizational Meaning of Research

ERIC Educational Resources Information Center

Adria, Marco; Boechler, Patricia

2004-01-01

Practitioners and theorists have given attention recently to the role and status of research activities in Canadian university continuing education units. For individuals in units that are increasing the proportion of their organizational activities devoted to research, there will be an ongoing process of cognitive change and development as a new…

Air Pollution and Prevalence of Allergic Diseases in Georgian Adolescent Population

DTIC Science & Technology

2004-06-01

During the last few decades, scientists have devoted special attention to environmental pollution and outdoor allergens (e.g., SO2, NO2, phenol...are most sensitive to the influence of environmental pollution . In this paper, the relationship between the frequency of allergic diseases in the young

An anthropomorphic master-slave manipulator system.

NASA Technical Reports Server (NTRS)

Vykukal, H. C.; King, R. F.; Vallotton, W. C.

1973-01-01

Review of some of the results of a teleoperator systems technology program devoted to the development of an anthropomorphic unilateral master-slave manipulator system. Following a discussion of the mechanical design details and servo design considerations, the developed system's test results are presented.

Dynamic field testing of the Route 58 Meherrin River bridge.

DOT National Transportation Integrated Search

1996-01-01

Dynamic response has long been recognized as one of the significant factors affecting the service life and safety of bridge structures, and considerable research, both analytical and experimental, has been devoted to this area of behavior. In the des...

Effect of hydrophobic environments on the hypothesized liquid-liquid critical point of water.

PubMed

Strekalova, Elena G; Corradini, Dario; Mazza, Marco G; Buldyrev, Sergey V; Gallo, Paola; Franzese, Giancarlo; Stanley, H Eugene

2012-01-01

The complex behavior of liquid water, along with its anomalies and their crucial role in the existence of life, continue to attract the attention of researchers. The anomalous behavior of water is more pronounced at subfreezing temperatures and numerous theoretical and experimental studies are directed towards developing a coherent thermodynamic and dynamic framework for understanding supercooled water. The existence of a liquid-liquid critical point in the deep supercooled region has been related to the anomalous behavior of water. However, the experimental study of supercooled water at very low temperatures is hampered by the homogeneous nucleation of the crystal. Recently, water confined in nanoscopic structures or in solutions has attracted interest because nucleation can be delayed. These systems have a tremendous relevance also for current biological advances; e.g., supercooled water is often confined in cell membranes and acts as a solvent for biological molecules. In particular, considerable attention has been recently devoted to understanding hydrophobic interactions or the behavior of water in the presence of apolar interfaces due to their fundamental role in self-assembly of micelles, membrane formation and protein folding. This article reviews and compares two very recent computational works aimed at elucidating the changes in the thermodynamic behavior in the supercooled region and the liquid-liquid critical point phenomenon for water in contact with hydrophobic environments. The results are also compared to previous reports for water in hydrophobic environments.

6th international conference on case histories in geotechnical engineering August 2008conference report.

DOT National Transportation Integrated Search

2009-01-01

Due to uncertainty in the nature of soils, a systematic study of the performance of geotechnical structures and its match with predictions is extremely important. Therefore, considerable research effort is being devoted to geotechnical engineering th...

Classification for Estuarine Ecosystems: A Review and Comparison of Selected Classification Schemes

EPA Science Inventory

Estuarine scientists have devoted considerable effort to classifying coastal, estuarine and marine environments and their watersheds, for a variety of purposes. These classifications group systems with similarities – most often in physical and hydrodynamic properties – in order ...

Visual search and attention: an overview.

PubMed

Davis, Elizabeth T; Palmer, John

2004-01-01

This special feature issue is devoted to attention and visual search. Attention is a central topic in psychology and visual search is both a versatile paradigm for the study of visual attention and a topic of study in itself. Visual search depends on sensory, perceptual, and cognitive processes. As a result, the search paradigm has been used to investigate a diverse range of phenomena. Manipulating the search task can vary the demands on attention. In turn, attention modulates visual search by selecting and limiting the information available at various levels of processing. Focusing on the intersection of attention and search provides a relatively structured window into the wide world of attentional phenomena. In particular, the effects of divided attention are illustrated by the effects of set size (the number of stimuli in a display) and the effects of selective attention are illustrated by cueing subsets of stimuli within the display. These two phenomena provide the starting point for the articles in this special issue. The articles are organized into four general topics to help structure the issues of attention and search.

Delivering and Receiving Bad News: What School Psychologists Need to Know

ERIC Educational Resources Information Center

Frost, Megan; Rogers, Margaret R.; O'Bryon, Elisabeth C.; Perry, Kimberly Hill

2010-01-01

Delivering bad news to students, teachers, and parents is not an uncommon occurrence for school psychologists. Skillfully communicating bad news requires sensitivity, thoughtful wording, and an awareness of the potential effect on the recipients. Despite the importance of this skill, school psychology has devoted little attention to what is…

Pedagogical Strategies for Training Future Technicians in American Aviation Schools

ERIC Educational Resources Information Center

Pazyura, Natalia

2015-01-01

The article is devoted to the question of improvement of quality and efficiency of professional training of future technicians in aviation industry in the American educational establishments. Main attention is paid to the studies of pedagogical technologies, which are used for the sake of qualitative and efficient training of specialists of…

When Education Research Matters. Education Outlook, No. 1

ERIC Educational Resources Information Center

Hess, Frederick M.

2008-01-01

The tangled relationship between education research and policy has received little serious scrutiny, even as paeans to "scientifically based research" and "evidence-based practice" have become a staple of education policymaking in recent years. For all the attention devoted to the five-year-old Institute of Education Sciences, to No Child Left…

Treatment Needs and Services for Mothers with a Dual Diagnosis: Substance Abuse and Mental Illness.

ERIC Educational Resources Information Center

Morris, Sylvia K.; Schinke, Steven P.

1990-01-01

Reviews treatment needs of dual diagnosed, substance abusing and mentally ill mothers. Suggests treatment strategies and programmatic options for serving and meeting needs of these mothers and their children. Devotes particular attention to residential and continuing care services and skills-based interventions for target clients. Concludes with…

Some Aspects of Collaboration in Inclusive Education--Teachers' Experiences

ERIC Educational Resources Information Center

Bouillet, Dejana

2013-01-01

The main aim of the present article is to analyse some aspects of collaboration in inclusive educational practice in Croatian schools by analysing teachers' experiences. Special attention is devoted to the professional support resources available to teachers, as well as to teachers' views on the content and usefulness of the professional support…

The Emergence of the Collective Collection: Analyzing Aggregate Print Library Holdings

ERIC Educational Resources Information Center

Dempsey, Lorcan

2013-01-01

As the network continues to reconfigure personal, business, and institutional relationships, it is natural that we also continue to see changes in how library collections are managed: changes in focus, boundaries, and value. One important trend is that libraries and the organizations that provide services to them will devote more attention to…

Handbook of field methods for monitoring landbirds

Treesearch

C.J. Ralph; G.R. Geupel; P. Pyle; T.E. Martin; D.F. DeSante

1993-01-01

The increased attention devoted to the status and possible declines of populations of smaller species of terrestrial birds, known collectively as "landbirds," has resulted in an immediate need for specific methodology for monitoring their populations. This handbook is derived from several sources and is based on the authors’ collective experiences in...

Attending to the Role of Race/Ethnicity in Family Violence Research

ERIC Educational Resources Information Center

Malley-Morrison, Kathleen; Hines, Denise A.

2007-01-01

Since the 1970s, researchers and public health and/or social policy communities have devoted increasing attention to family violence. Although officially reported crime figures for family violence appear to be declining, rates continue to be high in broadly defined racial and/or ethnic minority groups. More careful assessments of the potential…

Leadership Practices of the Assistant Superintendent for Curriculum and Instruction: Their Roles, Responsibilities, and Effectiveness

ERIC Educational Resources Information Center

DiMuzio, Claudine Ann

2013-01-01

Scant attention has been devoted to the study of public school assistant superintendents, particularly to those charged with the responsibilities of overseeing district-wide practices in regard to curriculum and instruction. This study provided an analysis of the career aspirations, career satisfaction, career efficacy, and career longevity, as…

Preparing Students for Romantic Relationships

ERIC Educational Resources Information Center

Weissbourd, Richard; Peterson, Amelia; Weinstein, Emily

2014-01-01

One of the most important aspects in our lives is learning how to have mutual, caring romantic relationships. Yet while schools and many other industries in this country devote tremendous attention and resources to preparing the young for work, they do remarkably little to prepare them for generous, self-respecting sex and love. Educators and…

In Situ Field-Based Metabolomics for Evaluating the Impacts of Exposure to Chemicals of Emerging Concern Relative to Other Stressors

EPA Science Inventory

Significant attention is being devoted to the potential impacts on ecosystems from exposure to chemicals of emerging concern (CECs; including pharmaceuticals, personal-care products, etc.). Many of these are persistent, distributed globally, and have been shown to cause adverse i...

Language Policies and the Role of Development Agencies in Postcolonial Mozambique

ERIC Educational Resources Information Center

Chimbutane, Feliciano

2017-01-01

This article focuses on the interface between language policy and development in Mozambique. Special attention is devoted to the interplay between language and education and to the role of development agencies in language policy and planning activities in Mozambique. I show that there has now been a discourse shift from homogenizing language…

HANDBOOK OF MENTAL DEFICIENCY, PSYCHOLOGICAL THEORY AND RESEARCH. MCGRAW-HILL SERIES IN PSYCHOLOGY.

ERIC Educational Resources Information Center

ELLIS, NORMAN R.

THE CONTRIBUTIONS OF 21 AUTHORS IN THIS VOLUME ARE DEVOTED TO ASSESSING THE STATUS OF RESEARCH AND THEORY IN MENTAL DEFICIENCY, FOCUSING ATTENTION ON THE BEHAVIOR OF THE MENTALLY HANDICAPPED. PART ONE IS CONCERNED WITH RESEARCH FINDINGS AND THEORIES TO EXPLAIN MENTAL DEFICIENCY. COMPREHENSIVE PSYCHOLOGICAL THEORIES REPRESENTED INCLUDE FIELD…

Teaching Books by and about Women.

ERIC Educational Resources Information Center

Carlson, Margaret

Because half of all students are female, and because role models are important in forming ideas and images, more attention should be devoted to finding books with heroic, tragic, or significant female characters. Good literature by women can be found in an increasing number of anthologies of women's literature that are now being produced. When…

The Impact of Business School Students' Psychological Capital on Academic Performance

ERIC Educational Resources Information Center

Luthans, Brett Carl; Luthans, Kyle William; Jensen, Susan M.

2012-01-01

Psychological capital (PsyCap) consisting of the psychological resources of hope, efficacy, resiliency, and optimism has been empirically demonstrated in the published literature to be related to manager and employee positive organizational outcomes and to be open to development. However, to date, little attention has been devoted to the impact of…

Mother-Child Relations and the Discourse of Maternity

ERIC Educational Resources Information Center

Davis, Robert A.

2011-01-01

In the critical assessment of the rise of what Jameson has termed the modern centred subject...the lived experience of individual consciousness as a monadic and autonomous centre of activity, significant attention has been devoted to the impact of the institutions of the late eighteenth century "bourgeois cultural revolution" such as the family…

State of the Art in Early Childhood Music and Research.

ERIC Educational Resources Information Center

Zimmerman, Marilyn P.

This paper is mainly devoted to reviewing past research on music development. Some recommendations for future research on music development and for improving music education for preschool children are also included. The developmental theories of Jean Piaget are discussed in detail, with special attention being given to concepts important to…

Playing by Ear: Foundation or Frill?

ERIC Educational Resources Information Center

Woody, Robert H.

2012-01-01

Many people divide musicians into two types: those who can read music and those who play by ear. Formal music education tends to place great emphasis on producing musically literate performers but devotes much less attention to teaching students to make music without notation. Some would suggest that playing by ear is a specialized skill that is…

Disturbance ecology of high-elevation five-needle pine ecosystems in western North America

Treesearch

Elizabeth M. Campbell; Robert E. Keane; Evan R. Larson; Michael P. Murray; Anna W. Schoettle; Carmen Wong

2011-01-01

This paper synthesizes existing information about the disturbance ecology of high-elevation five-needle pine ecosystems, describing disturbances regimes, how they are changing or are expected to change, and the implications for ecosystem persistence. As it provides the context for ecosystem conservation/restoration programs, we devote particular attention to wildfire...

Supervisee Countertransference: A Holistic Supervision Approach

ERIC Educational Resources Information Center

Ponton, Richard F.; Sauerheber, Jill Duba

2014-01-01

Countertransference (CT) has been recognized as a significant variable in the process and outcome of therapy and counseling for over 100 years. A review of the literature suggests that little attention has been devoted to strategies that supervisors can use to address CT in supervision with novice counselors. Informed by models of CT proposed by…

A Narrative of Two Preservice Music Teachers with Visual Impairment

ERIC Educational Resources Information Center

Parker, Elizabeth Cassidy; Draves, Tami J.

2017-01-01

The purpose of this narrative inquiry was to re-story the student teaching experience of two preservice music education majors who are visually impaired or blind. While music education scholars have devoted attention to P-12 students with disabilities, research with preservice music teachers with impairments is seemingly nonexistent. Using a…

Gender Characteristics of Cerebral Hemodynamics during Complex Cognitive Functioning

ERIC Educational Resources Information Center

Misteli, Maria; Duschek, Stefan; Richter, Andre; Grimm, Simone; Rezk, Markus; Kraehenmann, Rainer; Boeker, Heinz; Seifritz, Erich; Schuepbach, Daniel

2011-01-01

Functional Transcranial Doppler sonography (fTCD) has been applied to assess peak mean cerebral blood flow velocity (MFV) with a high temporal resolution during cognitive activation. Yet, little attention has been devoted to gender-related alterations of MFV, including spectral analysis. In healthy subjects, fTCD was used to investigate a series…

Meanings and Muddles: A Note on Some Words

ERIC Educational Resources Information Center

Palomba, Donatella

2012-01-01

Both "intercultural education" and "comparative education" have a history of problematising their identity, which is also reflected in the terminology adopted for defining them, mostly focused on the discussion of the exact meaning of the qualifying adjective. This paper argues that more attention needs to be devoted to the second term of the…

Building Strong Partnerships: Responsible Inquiry to Learn and Grow Together TECBD-CCBD Keynote Address

ERIC Educational Resources Information Center

Lane, Kathleen Lynne

2017-01-01

For many years people have discussed the research-to-practice gap in education. Recently, increased attention has been devoted to creating opportunities for practitioners and researchers to engage in highly collaborative partnerships from design to implementation to dissemination (e.g., Institute for Education Sciences, 2016). In this article, we…

The Impact of Community Disadvantage on the Relationship between the Family and Juvenile Crime

ERIC Educational Resources Information Center

Hay, Carter; Fortson, Edward N.; Hollist, Dusten R.; Altheimer, Irshad; Schaible, Lonnie M.

2006-01-01

Prior research on the family has identified many variables significantly associated with criminal involvement, including such things as parental supervision and discipline and the quality of the parent-child relationship. However, little attention has been devoted to the possibility that the effects of these variables on crime depend on…

[Dreams in ancient Hebrew sources].

PubMed

Kottek, Samuel S

2009-01-01

As in many cultures dreams are, in Hebrew sources, the object of numerous questions where are dreams from? Which is their function? Are they a physical or metaphysical phenomenon? The article analyzes the topic of nature of dreams in the Bible, with a particolar attention devoted to the Joseph's history. Talmudic text are, in particular, rich in references.

Integrative Care for Adolescents with Dual Diagnosis: Considering Trauma and Attachment within an Innovative Model for Clinical Practice

ERIC Educational Resources Information Center

Gardiner, Emily; Iarocci, Grace; Moretti, Marlene

2017-01-01

Adolescents with intellectual disability are at significant risk for developing concomitant mental health and behavior problems. Youth who experience "dual diagnosis" face great challenges, and require interventions that will promote their autonomy, self-determination, and adaptive functioning. In this article, we devote attention to…

Designing the Perfect Plant: Activities to Investigate Plant Ecology

ERIC Educational Resources Information Center

Lehnhoff, Erik; Woolbaugh, Walt; Rew, Lisa

2008-01-01

Plant ecology is an important subject that often receives little attention in middle school, as more time during science classes is devoted to plant biology. Therefore, the authors have developed a series of activities, including a card game--Designing the Perfect Plant--to introduce student's to plant ecology and the ecological trade offs…

Using Popular Magazine Articles to Teach the Art of Writing for Nontechnical Audiences

ERIC Educational Resources Information Center

Sivey, John D.; Lee, Cindy M.

2008-01-01

Many undergraduate chemistry curricula are devoting increasing amounts of time to teaching technical writing skills. Significantly less attention, however, is given toward training students in nontechnical writing strategies. The ability of chemistry students to communicate effectively in writing to a wide variety of audiences is an essential (and…

Making Learning Drive Assessment: Joan of Arc--Saint, Witch or Warrior?

ERIC Educational Resources Information Center

Wrenn, Andrew

2004-01-01

Andrew Wrenn describes his work with Barry Williams and the teachers of the history department at Ailwyn School (11-14 comprehensive), Ramsey in Cambridgeshire. Devoting equal attention to the "what" and the "how" of history assessment, he shows how this group of teachers developed a fresh approach to assessment out of the…

An ACLU Guide to Cable Television.

ERIC Educational Resources Information Center

Powledge, Fred

Proceeding from the hypothesis that cable television (CATV) is one of the most significant developments in modern America, this booklet examines the medium itself and then devotes special attention to the capacity of CATV to serve the First Amendment interest in diversity of expression. The opening section deals with the size and growth of cable,…

The Placebo Effect and Learning: Implications for Counsellors

ERIC Educational Resources Information Center

Hagen, Brad; Gunn, Thelma

2006-01-01

The placebo effect is a fascinating and complex phenomenon, and may well account for much of the effectiveness of many medical therapies, such as pain medications and antidepressants. While health professionals have long debated the role that placebos may play in health care, the counselling profession has devoted less attention to the placebo…

Helping Students Manage Emotions: REBT as a Mental Health Educational Curriculum

ERIC Educational Resources Information Center

Banks, Tachelle

2011-01-01

In preparing children to deal with life in an increasingly complex society, it is important that schools devote attention to well-organised and theoretically sound programmes employing a preventive approach to mental health. Rational Emotive Behaviour Therapy (REBT), as indicated in its name, incorporates changes to thought processes and…

Which Factors Affect Entrepreneurial Intention of University Students?

ERIC Educational Resources Information Center

Turker, Duygu; Selcuk, Senem Sonmez

2009-01-01

Purpose: Fostering entrepreneurship needs a twofold policy that should focus on both the current situation and future prospect of entrepreneurship. Although many scholars and policy makers devote their attention to the first foci of issue, it is equally important to map out the future context of entrepreneurship. The purpose of this paper is to…

Embedding Environmental Sustainability in the Undergraduate Chemistry Curriculum: A Case Study

ERIC Educational Resources Information Center

Schultz, Madeleine

2013-01-01

In spite of increasing attention devoted to the importance of embedding sustainability in university curricula, few Australian universities include specific green chemistry units, and there is no mention of green or sustainable chemistry concepts in the majority of units. In this paper, an argument is posited that all universities should embed…

Facework among L2 Speakers: A Close Look at Intercultural Communication

ERIC Educational Resources Information Center

Jwa, Soomin

2017-01-01

Although significant attention has been devoted to the notion of facework and its functions, facework among L2 speakers, whose cultural backgrounds and language proficiencies vary, has remained unexplored. The present study attempts to explore situations of intercultural communication in which facework is used as a way to remedy moments of…

Traditional Felt in the Kazakhs Folk Art

ERIC Educational Resources Information Center

Zhukenova, Zhazira D.; Soltanbaeva, Gulnar S.; Izhanov, Baikonir

2016-01-01

This research investigates the history of culture of Turkic nations and analyzes the traditions of making felt products. The literary sources devoted to the semantic meaning of images on felt products is analyzed. Special attention is paid to the symbolic meaning of images on Kazakh felt products. The technology of felt manufacturing and the…

Giano Intermediate School: The Parent Factor

ERIC Educational Resources Information Center

Rourke, James; Hartzman, Marlene

2009-01-01

On a Wednesday morning at Giano Intermediate School in West Covina, California, 25 mothers and fathers sit in rapt attention, many taking notes, as a school counselor outlines the morning's Parent Chat. The session is devoted to exploring how well the parents know their children. Parents complete a questionnaire that asks them to answer such…

Dictionnaires du francais langue etrangere (Dictionaries for French as a Second Language).

ERIC Educational Resources Information Center

Gross, Gaston; Ibrahim, Amr

1981-01-01

Examines the purposes served by native language dictionaries as an introduction to the review of three monolingual French dictionaries for foreigners. Devotes particular attention to the most recent, the "Dictionnaire du francais langue etrangere", published by Larousse. Stresses the characteristics that are considered desirable for this type of…

Plane Transformations in a Complex Setting II: Isometries

ERIC Educational Resources Information Center

Dana-Picard, Thierry

2007-01-01

This paper is the second part of a study of plane transformations using a complex setting. The first part was devoted to homotheties and translations, now attention is turned towards plane isometries. The group theoretic properties of plane isometries are easy to derive and images of classical geometrical objects by these transformations are…

Ralph Bunche: University and Diplomatic Legacies Fostering Innovative Paradigms

ERIC Educational Resources Information Center

Lindsay, Beverly

2004-01-01

This article is based upon the 2003 24th Annual Charles H. Thompson Lecture at Howard University. It devotes attention to the nexuses between Ralph Bunche's scholarly publications and diplomatic speeches and their relationships to contemporary university plans and programs to address ongoing crises. In-depth interviews with a university chancellor…

Nanotechnology overview: Opportunities and challenges

USDA-ARS?s Scientific Manuscript database

Nanotechnology can be defined as the science of manipulating matter at the nanometer scale in order to discover new properties and possibly produce new products. For the past 30 years, a considerable amount of scientific interest and R&D funding devoted to nanotechnology has led to rapid developmen...

Hot recycling of asphaltic concrete pavement : IR-15-3(8)121, Wildcat to Pine Creek

DOT National Transportation Integrated Search

1981-02-01

There are various methods of pavement material recycling. This report is devoted to hot-mix plant recycling considerations and procedures. The several phases of the hot-mix recycling process are discussed separately, including removal and size reduct...

Predictive factors for exocrine pancreatic insufficiency after pancreatoduodenectomy with pancreaticogastrostomy.

PubMed

Nakamura, Hiroyuki; Murakami, Yoshiaki; Uemura, Kenichiro; Hayashidani, Yasuo; Sudo, Takeshi; Ohge, Hiroki; Sueda, Taijiro

2009-07-01

The aim of this study was to determine risk factors for exocrine pancreatic insufficiency after pancreatoduodenectomy (PD) with pancreaticogastrostomy (PG). A (13)C-labeled mixed triglyceride breath test was performed in 61 patients after PD to assess exocrine pancreatic function. Percent (13)CO(2) cumulative dose at 7 h <5% was considered diagnostic of exocrine pancreatic insufficiency. Abdominal computed tomography scans were utilized to assess the dilatation of the main pancreatic duct (MPD dilatation) in the remnant. Thirty-eight of 61 patients (62.3%) were diagnosed with exocrine pancreatic insufficiency. Univariate analysis identified significant associations between two preoperative factors (preoperative impaired endocrine function and a hard pancreatic texture induced by preexisting obstructive pancreatitis), plus one postoperative factor (MPD dilatation caused by PG stricture) and exocrine pancreatic insufficiency (P < 0.05). Multivariate analysis determined that all three of these factors were independent factors (P < 0.05). Although exocrine pancreatic insufficiency after PD may be partly explainable by preexisting obstructive pancreatitis prior to surgery, surgeons desiring to obtain better postoperative exocrine pancreatic function after PD would be well-advised to devote considerable attention to preventing PG stricture.

Alkali-Resistant Quasi-Solid-State Electrolyte for Stretchable Supercapacitors.

PubMed

Tang, Qianqiu; Wang, Wenqiang; Wang, Gengchao

2016-10-05

Research on stretchable energy-storage devices has been motivated by elastic electronics, and considerable research efforts have been devoted to the development of stretchable electrodes. However, stretchable electrolytes, another critical component in stretchable devices, have earned quite little attention, especially the alkali-resistant ones. Here, we reported a novel stretchable alkali-resistant electrolyte made of a polyolefin elastomer porous membrane supported potassium hydroxide-potassium polyacrylate (POE@KOH-PAAK). The as-prepared electrolyte shows a negligible plastic deformation even after 1000 stretching cycles at a strain of 150% as well as a high conductivity of 0.14 S cm -1 . It also exhibits excellent alkali resistance, which shows no obvious degradation of the mechanical performance after immersion in 2 M KOH for up to 2 weeks. To demonstrate its good properties, a high-performance stretchable supercapacitor is assembled using a carbon-nanotube-film-supported NiCo 2 O 4 (CNT@NiCo 2 O 4 ) as the cathode and Fe 2 O 3 (CNT@Fe 2 O 3 ) as the anode, proving great application promise of the stretchable alkali-resistant electrolyte in stretchable energy-storage devices.

Prevention of spread of communicable disease by air travel.

PubMed

Evans, Anthony D; Thibeault, Claude

2009-07-01

Mathematical modeling suggests that travel restrictions are likely to have only a limited effect on minimizing the spread of disease. Nevertheless, medical screening of travelers remains an option to be considered in a risk-reduction strategy. Screening of departing and/or arriving travelers are possibilities, although the World Health Organization (WHO) favors the former as it is normally easier to geographically contain a disease prior to its transmission outside the outbreak area. Apart from airport screening, several other related issues require consideration, including: transmission of disease on board aircraft; transmission of disease in airport terminal buildings; and contact tracing. A major challenge is to ensure adequate resources are devoted to pandemic preparedness planning in the aviation sector, which may not be fully considered in a national preparedness plan. This is because the prevention of accidents occupies most of the attention of regulatory aviation authorities, and public health authorities do not always see aviation as a priority area. Chief medical officers of regulatory authorities may be in a position to facilitate collaboration between the many stakeholders involved in preparedness planning for aviation.

Manipulating waves by distilling frequencies: a tunable shunt-enabled rainbow trap

NASA Astrophysics Data System (ADS)

Cardella, Davide; Celli, Paolo; Gonella, Stefano

2016-08-01

In this work, we propose and test a strategy for tunable, broadband wave attenuation in electromechanical waveguides with shunted piezoelectric inclusions. Our strategy is built upon the vast pre-existing literature on vibration attenuation and bandgap generation in structures featuring periodic arrays of piezo patches, but distinguishes itself for several key features. First, we demystify the idea that periodicity is a requirement for wave attenuation and bandgap formation. We further embrace the idea of ‘organized disorder’ by tuning the circuits as to resonate at distinct neighboring frequencies. In doing so, we create a tunable ‘rainbow trap’ (Tsakmakidis et al 2007 Nature 450 397-401) capable of attenuating waves with broadband characteristics, by distilling (sequentially) seven frequencies from a traveling wavepacket. Finally, we devote considerable attention to the implications in terms of packet distortion of the spectral manipulation introduced by shunting. This work is also meant to serve as a didactic tool for those approaching the field of shunted piezoelectrics, and attempts to provide a different perspective, with abundant details, on how to successfully design an experimental setup involving resistive-inductive shunts.

Recycled diesel carbon nanoparticles for nanostructured battery anodes

NASA Astrophysics Data System (ADS)

Chen, Yuming; Liu, Chang; Sun, Xiaoxuan; Ye, Han; Cheung, Chunshun; Zhou, Limin

2015-02-01

Considerable attention has been devoted to using rational nanostructure design to address critical carbonaceous anode material issues for next-generation lithium-ion batteries (LIBs). However, the fabrication of nanostructured carbonaceous anode materials often involves complex processes and expensive starting materials. Diesel engine is an important source of nanostructured carbon particles with diameters ranging 20 nm-60 nm suspended in air, resulting in a serious scourge of global climate and a series of diseases such as lung cancer, asthma, and cardiovascular disease. Here, we show that diesel carbon nanoparticles collected from diesel engines can be chemically activated to create a porous structure. The resulting nanostructured carbon electrodes have a high specific capacity of 936 mAh g-1 after 40 cycles at 0.05 A/g, and excellent cycle stability while retaining a capacity of ∼210 mAh g-1 after 1200 cycles at 5 A/g. As recycled diesel carbon nanoparticles are readily available due to the several billion tons of diesel fuel consumed every year by diesel engines, their use represents an exciting source for nanostructured carbonaceous anode materials for high-performance LIBs and improves our environment and health.

Mediterranean diet and inflammaging within the hormesis paradigm

PubMed Central

Martucci, Morena; Ostan, Rita; Biondi, Fiammetta; Bellavista, Elena; Fabbri, Cristina; Bertarelli, Claudia; Salvioli, Stefano; Capri, Miriam; Franceschi, Claudio; Santoro, Aurelia

2017-01-01

Abstract A coherent set of epidemiological data shows that the Mediterranean diet has beneficial effects capable of preventing a variety of age-related diseases in which low-grade, chronic inflammation/inflammaging plays a major role, but the underpinning mechanism(s) is/are still unclear. It is suggested here that the Mediterranean diet can be conceptualized as a form of chronic hormetic stress, similar to what has been proposed regarding calorie restriction, the most thoroughly studied nutritional intervention. Data on the presence in key Mediterranean foods of a variety of compounds capable of exerting hormetic effects are summarized, and the mechanistic role of the nuclear factor erythroid 2 pathway is highlighted. Within this conceptual framework, particular attention has been devoted to the neurohormetic and neuroprotective properties of the Mediterranean diet, as well as to its ability to maintain an optimal balance between pro- and anti-inflammaging. Finally, the European Commission–funded project NU-AGE is discussed because it addresses a number of variables not commonly taken into consideration, such as age, sex, and ethnicity/genetics, that can modulate the hormetic effect of the Mediterranean diet. PMID:28595318

Cognition-Action Trade-Offs Reflect Organization of Attention in Infancy.

PubMed

Berger, Sarah E; Harbourne, Regina T; Horger, Melissa N

2018-01-01

This chapter discusses what cognition-action trade-offs in infancy reveal about the organization and developmental trajectory of attention. We focus on internal attention because this aspect is most relevant to the immediate concerns of infancy, such as fluctuating levels of expertise, balancing multiple taxing skills simultaneously, learning how to control attention under variable conditions, and coordinating distinct psychological domains. Cognition-action trade-offs observed across the life span include perseveration during skill emergence, errors and inefficient strategies during decision making, and the allocation of resources when attention is taxed. An embodied cognitive-load account interprets these behavioral patterns as a result of limited attentional resources allocated across simultaneous, taxing task demands. For populations where motor errors could be costly, like infants and the elderly, attention is typically devoted to motor demands with errors occurring in the cognitive domain. In contrast, healthy young adults tend to preserve their cognitive performance by modifying their actions. © 2018 Elsevier Inc. All rights reserved.

Effect of learning disabilities on academic self-concept in children with epilepsy and on their quality of life.

PubMed

Brabcová, Dana; Zárubová, Jana; Kohout, Jiří; Jošt, Jiří; Kršek, Pavel

2015-01-01

Academic self-concept could significantly affect academic achievement and self-confidence in children with epilepsy. However, limited attention has been devoted to determining factors influencing academic self-concept of children with epilepsy. We aimed to analyze potentially significant variables (gender, frequency of seizures, duration of epilepsy, intellectual disability, learning disability and attention deficit hyperactivity disorder) in relation to academic self-concept in children with epilepsy and to additional domains of their quality of life. The study group consisted of 182 children and adolescents aged 9-14 years who completed the SPAS (Student's Perception of Ability Scale) questionnaire determining their academic self-concept and the modified Czech version of the CHEQOL-25 (Health-Related Quality of Life Measure for Children with Epilepsy) questionnaire evaluating their health-related quality of life. Using regression analysis, we identified learning disability as a key predictor for academic-self concept of children with epilepsy. While children with epilepsy and with no learning disability exhibited results comparable to children without epilepsy, participants with epilepsy and some learning disability scored significantly lower in almost all domains of academic self-concept. We moreover found that children with epilepsy and learning disability have significantly lower quality of life in intrapersonal and interpersonal domains. In contrast to children with epilepsy and with no learning disability, these participants have practically no correlation between their quality of life and academic self-concept. Our findings suggest that considerable attention should be paid to children having both epilepsy and learning disability. It should comprise services of specialized counselors and teaching assistants with an appropriate knowledge of epilepsy and ability to empathize with these children as well as educational interventions focused on their teachers and classmates. Copyright © 2015 Elsevier Ltd. All rights reserved.

Probabilistic analysis of mean-response along-wind induced vibrations on wind turbine towers using wireless network data sensors

NASA Astrophysics Data System (ADS)

Velazquez, Antonio; Swartz, Raymond A.

2011-04-01

Wind turbine systems are attracting considerable attention due to concerns regarding global energy consumption as well as sustainability. Advances in wind turbine technology promote the tendency to improve efficiency in the structure that support and produce this renewable power source, tending toward more slender and larger towers, larger gear boxes, and larger, lighter blades. The structural design optimization process must account for uncertainties and nonlinear effects (such as wind-induced vibrations, unmeasured disturbances, and material and geometric variabilities). In this study, a probabilistic monitoring approach is developed that measures the response of the turbine tower to stochastic loading, estimates peak demand, and structural resistance (in terms of serviceability). The proposed monitoring system can provide a real-time estimate of the probability of exceedance of design serviceability conditions based on data collected in-situ. Special attention is paid to wind and aerodynamic characteristics that are intrinsically present (although sometimes neglected in health monitoring analysis) and derived from observations or experiments. In particular, little attention has been devoted to buffeting, usually non-catastrophic but directly impacting the serviceability of the operating wind turbine. As a result, modal-based analysis methods for the study and derivation of flutter instability, and buffeting response, have been successfully applied to the assessment of the susceptibility of high-rise slender structures, including wind turbine towers. A detailed finite element model has been developed to generate data (calibrated to published experimental and analytical results). Risk assessment is performed for the effects of along wind forces in a framework of quantitative risk analysis. Both structural resistance and wind load demands were considered probabilistic with the latter assessed by dynamic analyses.

Parietal plasticity after training with a complex video game is associated with individual differences in improvements in an untrained working memory task

PubMed Central

Nikolaidis, Aki; Voss, Michelle W.; Lee, Hyunkyu; Vo, Loan T. K.; Kramer, Arthur F.

2014-01-01

Researchers have devoted considerable attention and resources to cognitive training, yet there have been few examinations of the relationship between individual differences in patterns of brain activity during the training task and training benefits on untrained tasks (i.e., transfer). While a predominant hypothesis suggests that training will transfer if there is training-induced plasticity in brain regions important for the untrained task, this theory lacks sufficient empirical support. To address this issue we investigated the relationship between individual differences in training-induced changes in brain activity during a cognitive training videogame, and whether those changes explained individual differences in the resulting changes in performance in untrained tasks. Forty-five young adults trained with a videogame that challenges working memory, attention, and motor control for 15 2-h sessions. Before and after training, all subjects received neuropsychological assessments targeting working memory, attention, and procedural learning to assess transfer. Subjects also underwent pre- and post-functional magnetic resonance imaging (fMRI) scans while they played the training videogame to assess how these patterns of brain activity change in response to training. For regions implicated in working memory, such as the superior parietal lobe (SPL), individual differences in the post-minus-pre changes in activation predicted performance changes in an untrained working memory task. These findings suggest that training-induced plasticity in the functional representation of a training task may play a role in individual differences in transfer. Our data support and extend previous literature that has examined the association between training related cognitive changes and associated changes in underlying neural networks. We discuss the role of individual differences in brain function in training generalizability and make suggestions for future cognitive training research. PMID:24711792

Parietal plasticity after training with a complex video game is associated with individual differences in improvements in an untrained working memory task.

PubMed

Nikolaidis, Aki; Voss, Michelle W; Lee, Hyunkyu; Vo, Loan T K; Kramer, Arthur F

2014-01-01

Researchers have devoted considerable attention and resources to cognitive training, yet there have been few examinations of the relationship between individual differences in patterns of brain activity during the training task and training benefits on untrained tasks (i.e., transfer). While a predominant hypothesis suggests that training will transfer if there is training-induced plasticity in brain regions important for the untrained task, this theory lacks sufficient empirical support. To address this issue we investigated the relationship between individual differences in training-induced changes in brain activity during a cognitive training videogame, and whether those changes explained individual differences in the resulting changes in performance in untrained tasks. Forty-five young adults trained with a videogame that challenges working memory, attention, and motor control for 15 2-h sessions. Before and after training, all subjects received neuropsychological assessments targeting working memory, attention, and procedural learning to assess transfer. Subjects also underwent pre- and post-functional magnetic resonance imaging (fMRI) scans while they played the training videogame to assess how these patterns of brain activity change in response to training. For regions implicated in working memory, such as the superior parietal lobe (SPL), individual differences in the post-minus-pre changes in activation predicted performance changes in an untrained working memory task. These findings suggest that training-induced plasticity in the functional representation of a training task may play a role in individual differences in transfer. Our data support and extend previous literature that has examined the association between training related cognitive changes and associated changes in underlying neural networks. We discuss the role of individual differences in brain function in training generalizability and make suggestions for future cognitive training research.

Institutional and environmental aspects of geothermal energy development

NASA Technical Reports Server (NTRS)

Citron, O. R.

1977-01-01

Until recently, the majority of work in geothermal energy development has been devoted to technical considerations of resource identification and extraction technologies. The increasing interest in exploiting the variety of geothermal resources has prompted an examination of the institutional barriers to their introduction for commercial use. A significant effort was undertaken by the Jet Propulsion Laboratory as a part of a national study to identify existing constraints to geothermal development and possible remedial actions. These aspects included legislative and legal parameters plus environmental, social, and economic considerations.

MEASURING THE GRASSROOTS: Puzzles of Cultivating the Grassroots from the Top Down

PubMed Central

Eliasoph, Nina

2014-01-01

Does a participatory, open-ended organizational format inspire creativity and draw on participants' local knowledge? Many nonprofits operate under this assumption, and many of their financial sponsors agree, and therefore demand precise accounts documenting the nonprofits' “participatory” formats. In the U.S. youth civic engagement projects described here, the practice of accounting itself had an effect, regardless of funders' goals. Volunteers devoted more time to documenting just how participatory, open-ended and grassroots they were than they devoted to any other topic. Organizers strenuously tried to avert attention from accounting's importance, but could not avoid it. Volunteers could not reflect on the accounting process, or on the political questions behind it; knowledge of it became a repressed institutional intuition. PMID:25253914

Molecular magnetism, status and perspectives

NASA Astrophysics Data System (ADS)

Gatteschi, Dante; Bogani, Lapo; Cornia, Andrea; Mannini, Matteo; Sorace, Lorenzo; Sessoli, Roberta

2008-12-01

A short review is made of molecular magnetism, trying to discuss what is alive and well, with perspectives for the future. All the main fields of activity are mentioned, ranging from the so-called spin cross-over systems to the quest for organic (molecular) ferromagnets. Particular attention is devoted to some of the recent advances in these fields, highlighting also the opportunities for the development of applications. Low dimensional magnets are perhaps the best opportunity to use molecules, and the status of single-molecule and single chain magnets is discussed. The last part is devoted to the organization of magnetic molecules and to the development of techniques which allow to measure the magnetic properties of thin layers and, in perspective, of single molecules.

Self-Efficacy and the Stages and Processes of Change Associated with Adopting and Maintaining Muscular Fitness-Promoting Behaviors

ERIC Educational Resources Information Center

Cardinal, Bradley J.; Kosma, Maria

2004-01-01

The majority of physical activity initiatives have been directed toward promoting cardiorespiratory fitness and general health. Far less attention has been devoted to encouraging or understanding muscular fitness-promoting behaviors. The purpose of this study was to determine if constructs from the Transtheoretical Model, a contemporary behavior…

Discrepancies Between Youth and Mothers' Perceptions of Their Mother-Child Relationship Quality and Self-Disclosure: Implications for Youth- and Mother-Reported Youth Adjustment

ERIC Educational Resources Information Center

Reidler, Esther B.; Swenson, Lance P.

2012-01-01

Recently, researchers have devoted greater attention to understanding how disagreement between mothers and their children regarding parent-child relationship quality and functioning impacts youth adjustment. While some view discrepancies as indices of developmentally appropriate individuation, discrepancies regarding family functioning also have…

Writing and Learning in Cross-National Perspective: Transitions from Secondary to Higher Education.

ERIC Educational Resources Information Center

Foster, David, Ed.; Russell, David R., Ed.

Noting that composition studies in the United States has devoted little attention to cross-national perspectives on student writing and its roles in wider cultural contexts, this book presents research studies from six nations (China, England, France, Germany, Kenya, and South Africa) on academic writing development in the dominant language of…

Children's Freedom: A. S. Neill and the Evolution of the Summerhill Idea.

ERIC Educational Resources Information Center

Hemmings, Ray

This book is a critical evaluation of A. S. Neill's contribution to educational theory and practice. The study includes some biographical material, but this material is introduced to provide a focus for Neill's ideas. The author devotes special attention to Neill's contributions to the psychological aspects of freedom within the social and…

Attending to Issues of Access in Contemporary Times: Centring a Significant Side Issue

ERIC Educational Resources Information Center

Cipollone, Kristin; Stich, Amy Elizabeth

2012-01-01

Although methodological discussions abound in qualitative research, little time is devoted to access, arguably one of the most important methodological components of social research. Access has often been treated as a side issue by scholarly sources, receiving only cursory attention, generally in a way that reduces it to a mere strategy and severs…

Modeling the fundamental characteristics and processes of the spacecraft functioning

NASA Technical Reports Server (NTRS)

Bazhenov, V. I.; Osin, M. I.; Zakharov, Y. V.

1986-01-01

The fundamental aspects of modeling of spacecraft characteristics by using computing means are considered. Particular attention is devoted to the design studies, the description of physical appearance of the spacecraft, and simulated modeling of spacecraft systems. The fundamental questions of organizing the on-the-ground spacecraft testing and the methods of mathematical modeling were presented.

Preparing Teachers for Urban Students Who Have Been Labeled as Having Special Needs

ERIC Educational Resources Information Center

Banks, Tachelle; Obiakor, Festus; Algozzine, Bob

2013-01-01

Preparing teachers to work in urban public schools--and to remain there--is a daunting challenge. In an age plagued with the overrepresentation of culturally and linguistically diverse (CLD) students placed in special education programs, it is important that teacher preparation programs within the field of special education devote attention to the…

Tasers and Community Controversy: Investigating Training Officer Perceptions of Public Concern over Conducted Energy Weapons

ERIC Educational Resources Information Center

De Angelis, Joseph; Wolf, Brian

2013-01-01

Over the last several decades, "Tasers," "stun guns" and other conducted energy devices (CEDs) have become a widely adopted, though publicly controversial, form of police restraint technology. While there is a growing body of research on the physiological effects of these types of weapons, less attention has been devoted to the…

Identification of a QTL for postharvest disease resistance to Penicillium expansum in Malus sieversii

USDA-ARS?s Scientific Manuscript database

Blue mold of apple caused by Penicillium expansum is one of the most important postharvest rots of apple fruit. Little attention has been devoted to postharvest disease resistance in apple breeding programs due both to a lack of sources of genetic resistance and to the time required for seedlings t...

The Practicality of Contemplative Attention: Devoted Thought That Is Not Deluded. Occasional Paper No. 141.

ERIC Educational Resources Information Center

Buchmann, Margret

By exploring the question of whether teaching begins and ends in contemplative thought, this essay suggests that conceptions of teacher thinking must be expanded beyond planning and decision making. People's ordinary conception of thinking includes imagining, remembering, interpreting, and caring. In order to understand the full scope and meaning…

The Influence of Wealth and Race in Four-Year College Attendance. Research & Occasional Paper Series: CSHE.18.08

ERIC Educational Resources Information Center

Jez, Su Jin

2008-01-01

College is increasingly essential for economic and social mobility. Current research devotes significant attention to race and socioeconomic factors in college access. Yet wealth's role, as differentiated from income, is largely unexplored. Utilizing a nationally representative dataset, this study analyzes the role of wealth among students who…

NONLINEARITIES IN THE SULFATE SECONDARY FINE PARTICULATE RESPONSE TO NOX EMISSIONS REDUCTIONS AS MODELED BY THE REGIONAL ACID DEPOSITION MODEL

EPA Science Inventory

Attention is increasingly being devoted to the health effects of fine particulates. In regions that have a large production of sulfate, sulfuric acid and nitric acid compete for the available ammonia to form aerosols. In addition, the available nitric acid is the result of ur...

Cheating in the Educational Process: (An Experiment in Crib-Sheet Studies)

ERIC Educational Resources Information Center

Latova, Nataliia Valer'evna; Latov, Iurii Valer'evich

2008-01-01

The study of post-Soviet Russia's shadow economic relations, research that has become increasingly extensive in the past ten years, has also focused attention on the system of education. Quite a few articles have been devoted to corruption in educational institutions as well as informal [i.e., unofficial, not necessarily authorized] tutoring.…

Crisis Intervention with Older Persons: State of the Art and Clinical Applications.

ERIC Educational Resources Information Center

Duffy, Michael

A basic tenet of this paper is that the concept of crisis and crisis management has developed as a central issue within the fields of community psychiatry, psychology, and mental health, but that little systematic attention has been devoted to a particular subgroup at risk, i.e., older persons. Both theoretical background and clinical implications…

Non-arborescent vegetation trajectories following repeated hurricane disturbance: ephemeral versus enduring responses

Treesearch

Alejandro A. Royo; Tamara Heartsill-Scalley; Samuel Moya; Fred N. Scatena

2011-01-01

Hurricanes strongly influence short-term patterns of plant community structure, composition, and abundance and are a major contributor to the maintenance of plant diversity in many forests. Although much research has focused on the immediate and long-term effects of hurricane disturbance on tree diversity, far less attention has been devoted to the non-arborescent...

Remote Multivariable Control Design Using a Competition Game

ERIC Educational Resources Information Center

Atanasijevic-Kunc, M.; Logar, V.; Karba, R.; Papic, M.; Kos, A.

2011-01-01

In this paper, some approaches to teaching multivariable control design are discussed, with special attention being devoted to a step-by-step transition to e-learning. The approach put into practice and presented here is developed through design projects, from which one is chosen as a competition game and is realized using the E-CHO system,…

Diversifying the Teacher Workforce: A Retrospective and Prospective Analysis

ERIC Educational Resources Information Center

Villegas, Ana Maria; Lucas, Tamara F.

2004-01-01

In this chapter, the authors argue that increasing the racial/ethnic diversity of the teacher workforce should be a key component of any system that aims to supply schools with well-prepared teachers for all students. The authors first explain why they think attention and resources should be devoted to increasing the diversity of the teacher…

Examining the Factor Structure and Psychometric Properties of the Quality of Life Scale among People with Multiple Sclerosis

ERIC Educational Resources Information Center

Fitzgerald, Shawn M.; Li, Jian; Rumrill, Phillip D., Jr.; Bishop, Malachy; Merchant, William R.

2015-01-01

Rehabilitation counseling researchers seeking to more fully understand the phenomenon of psychosocial adaptation to disability are devoting increased attention to the impact of disability on quality of life (QOL). This impact has been of particular interest among multiple sclerosis (MS) researchers. The complex etiology, unpredictable nature, and…

The Child Writer: Graphic Literacy and the Scottish Educational System, 1700-1820

ERIC Educational Resources Information Center

Eddy, Matthew Daniel

2016-01-01

The story of Enlightenment literacy is often reconstructed from textbooks and manuals, with the implicit focus being what children were reading. But far less attention has been devoted to how they mastered the scribal techniques that allowed them to manage knowledge on paper. Focusing on Scotland, handwritten manuscripts are used to reveal that…

Preventing Violence in Schools. Information Capsule. Volume 0906

ERIC Educational Resources Information Center

Research Services, Miami-Dade County Public Schools, 2009

2009-01-01

This report provides information on the causes and incidence of youth violence and summarizes violence prevention strategies used in schools across the country. Particular attention is devoted to the use of metal detectors in schools. It would cost an estimated $32.5 million to implement a metal detection program in all of the District's…

Three-Level Models for Indirect Effects in School- and Class-Randomized Experiments in Education

ERIC Educational Resources Information Center

Pituch, Keenan A.; Murphy, Daniel L.; Tate, Richard L.

2009-01-01

Due to the clustered nature of field data, multi-level modeling has become commonly used to analyze data arising from educational field experiments. While recent methodological literature has focused on multi-level mediation analysis, relatively little attention has been devoted to mediation analysis when three levels (e.g., student, class,…

The Relationship between Principals' Perceptions of Parent Involvement and Student Academic Achievement in Title I Schools

ERIC Educational Resources Information Center

Gaston, Sean Maurice

2013-01-01

The role of the "principal" in encouraging and supporting parent involvement has not received as much research attention as it would seem to merit. While the recent literature on parent involvement is extensive, virtually none are devoted to investigating the impact of school leadership, particularly the function of the principal on…

Whither the Ivory Tower? Corruption and Development of Higher Education in Nigeria

ERIC Educational Resources Information Center

Oarhe, Osumah

2014-01-01

In the struggle to combat corruption in Nigeria, popular and intellectual discourse has essentially been devoted to the behaviour of public officials such as politicians. However, only little intellectual attention seems to have been cast on corruption in the education sector. This article attempts to fill this knowledge gap. Based on desk…

The Professional Competence Formation in the Training Process in Higher Educational Institution

ERIC Educational Resources Information Center

Burganova, Roza I.; Abdugalina, Sairan E.; Shaiheslyamova, Kazyna O.

2016-01-01

The article is devoted to the problem of professional competence formation in the specialists' training process at the university in contemporary socio-economic and socio-cultural conditions originating in the Republic of Kazakhstan. The emphasis is laid on new scientific and pedagogical approaches to its solution. Special attention is paid to the…

The Relationship Between Reading Fluency and Vocabulary in Fifth Grade Turkish Students

ERIC Educational Resources Information Center

Yildirim, Kasim; Rasinski, Timothy; Ates, Seyit; Fitzgerald, Shawn; Zimmerman, Belinda; Yildiz, Mustafa

2014-01-01

Reading fluency has traditionally been recognized as a competency associated with word recognition and comprehension. As readers become more automatic in word identification they are able to devote less attention and cognitive resources to word decoding and more to text comprehension. The act of reading itself has been associated with growth in…

Measuring Perceptions of the Learning Environment and Approaches to Learning: Validation of the Learn Questionnaire

ERIC Educational Resources Information Center

Herrmann, Kim Jesper; Bager-Elsborg, Anna; Parpala, Anna

2017-01-01

While focus on quality in Danish higher education has been growing in recent years, limited attention has been devoted to developing and thoroughly validating instruments that allow collecting data about university students' perceptions of the teaching-learning environment. Based on data from a large sample of Danish university students, a Danish…

The MSA: An Instrument for Measuring Motivation to Study Abroad

ERIC Educational Resources Information Center

Anderson, Philip H.; Lawton, Leigh

2015-01-01

While there is a growing body of research on study abroad programs, as Li, Olson, and Frieze (2013) observed, "Research on study abroad has primarily focused on the effects or outcomes of study abroad participation on the students involved in these programs…Very limited attention has been devoted to studying factors affecting students'…

Anger among Allies: Audre Lorde's 1981 Keynote Admonishing the National Women's Studies Association

ERIC Educational Resources Information Center

Olson, Lester C.

2011-01-01

This essay argues that Audre Lorde's 1981 keynote speech, "The Uses of Anger: Women Responding to Racism," has much to contribute to communication scholars' understanding of human biases and rhetorical artistry. The significance of Lorde's subject is one reason for devoting critical attention to her speech, because, in contemporary public life in…

The Oral and Written Language Scales: Is It Useful for Older Children with Autism Spectrum Disorder?

ERIC Educational Resources Information Center

Hartley, Sigan L.; Buckendorf, G. Robert; Haines, Kristin; Hall, Trevor A.; Sikora, Darryn M.

2008-01-01

Communication impairment is a defining feature of autism spectrum disorders (ASD). Little research attention has been devoted to establishing standardized methods for defining and identifying language impairment in children with known or suspected ASD. The present study examines the feasibility and utility of the Oral and Written Language Scales…

What's in a Name? In Pursuit of "Israel Education"

ERIC Educational Resources Information Center

Attias, Shlomit

2015-01-01

Naming a discipline is a key component in both the shaping and unpacking of its development. Still, little attention has been devoted to studying the ways in which this process has influenced Israel Education. Based on a long-term ethnographic study, this article presents Israel Education name choices and discusses the manner in which this naming…

Preparing Stylistically Challenging Contemporary Classical Repertoire for Performance: Interpreting "Kumari"

ERIC Educational Resources Information Center

Viney, Liam; Blom, Diana

2015-01-01

Research involving the learning processes of musicians seldom examines specific pieces of music, and limited attention has been devoted to the earliest stages of learning a stylistically challenging or new piece of 20th-/21st-century art music. This article describes the processes by which two pianists (the authors) learned Ross Edwards's…

Gaming in Technology Education

ERIC Educational Resources Information Center

Clark, Aaron C.; Ernst, Jeremy V.

2009-01-01

The authors have devoted a considerable amount of time evaluating the role that gaming and game development plays in the form of curricula integration and as a future career focus for students interested in this field. From the research conducted through the completed National Science Foundation (NSF) project, VisTE: Visualization in Technology…

The Last Indian in the World

ERIC Educational Resources Information Center

Dunn, Carolyn

2008-01-01

In June 2004, the American national media spent a considerable amount of airtime revisiting the events of June 1964 when three civil rights workers were murdered near Philadelphia, Mississippi. On the fortieth anniversary of the murders. National Public Radio's "All Things Considered" devoted airtime to a story, "Truth and Reconciliation in…

Space-Time Fusion Under Error in Computer Model Output: An Application to Modeling Air Quality

EPA Science Inventory

In the last two decades a considerable amount of research effort has been devoted to modeling air quality with public health objectives. These objectives include regulatory activities such as setting standards along with assessing the relationship between exposure to air pollutan...

Explorations of Affection and Aggression.

ERIC Educational Resources Information Center

Shuntich, Richard J.; Shapiro, Richard

Considerable effort has been devoted to investigating various aspects of love and affection, but there have been few studies about direct expressions of affection. Relationships between gender composition of a dyad and the affection/aggression expressed by the dyad were examined as was the possibility of increasing the amount of affectionate…

Parameterization guidelines and considerations for hydrologic models

USDA-ARS?s Scientific Manuscript database

Imparting knowledge of the physical processes of a system to a model and determining a set of parameter values for a hydrologic or water quality model application (i.e., parameterization) is an important and difficult task. An exponential increase in literature has been devoted to the use and develo...

Cancer Immunotherapy Using Virus-like Particles | NCI Technology Transfer Center | TTC

Cancer.gov

A considerable effort has been devoted to identifying and targeting specific extracellular cancer markers using antibody based therapies. However, diminished access to new cancer cell surface markers has limited the development of corresponding antibodies. NCI Technology Transfer Center is seeking to license cancer immunotherapy using virus-like particles.

Marketing national parks: oxymoron or opportunity?

Treesearch

Alan K. Hogenauer

2002-01-01

Although the "national park" concept is universally acknowledged, marketing of the 4,000+ areas so designated worldwide varies dramatically. Some park systems - such as those of Canada and Australia ? are extensively marketed, in the sense that considerable resources are devoted to traditional strategic and tactical approaches to the potential user. Other...

The Influence of Leadership Development Approaches on Social Capital: A Mixed Methods Study

ERIC Educational Resources Information Center

Burbaugh, Bradley James

2015-01-01

Leadership programs serve as a mechanism to develop the leadership capacity of individuals, groups, and organizations. Although considerable time and resources have been devoted to understanding the outcomes of leadership development, little time and effort has been dedicated to understanding the developmental approaches that influence the…

Unsold is unseen … or is it? Examining the role of peripheral vision in the consumer choice process using eye-tracking methodology.

PubMed

Wästlund, Erik; Shams, Poja; Otterbring, Tobias

2018-01-01

In visual marketing, the truism that "unseen is unsold" means that products that are not noticed will not be sold. This truism rests on the idea that the consumer choice process is heavily influenced by visual search. However, given that the majority of available products are not seen by consumers, this article examines the role of peripheral vision in guiding attention during the consumer choice process. In two eye-tracking studies, one conducted in a lab facility and the other conducted in a supermarket, the authors investigate the role and limitations of peripheral vision. The results show that peripheral vision is used to direct visual attention when discriminating between target and non-target objects in an eye-tracking laboratory. Target and non-target similarity, as well as visual saliency of non-targets, constitute the boundary conditions for this effect, which generalizes from instruction-based laboratory tasks to preference-based choice tasks in a real supermarket setting. Thus, peripheral vision helps customers to devote a larger share of attention to relevant products during the consumer choice process. Taken together, the results show how the creation of consideration set (sets of possible choice options) relies on both goal-directed attention and peripheral vision. These results could explain how visually similar packaging positively influences market leaders, while making novel brands almost invisible on supermarket shelves. The findings show that even though unsold products might be unseen, in the sense that they have not been directly observed, they might still have been evaluated and excluded by means of peripheral vision. This article is based on controlled lab experiments as well as a field study conducted in a complex retail environment. Thus, the findings are valid both under controlled and ecologically valid conditions. Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.

Reward, salience, and attentional networks are activated by religious experience in devout Mormons

PubMed Central

Ferguson, Michael A.; Nielsen, Jared A.; King, Jace B.; Dai, Li; Giangrasso, Danielle M.; Holman, Rachel; Korenberg, Julie R.; Anderson, Jeffrey S.

2017-01-01

High-level cognitive and emotional experience arises from brain activity, but the specific brain substrates for religious and spiritual euphoria remain unclear. We demonstrate using functional magnetic resonance imaging scans in 19 devout Mormons that a recognizable feeling central to their devotional practice was reproducibly associated with activation in nucleus accumbens, ventromedial prefrontal cortex, and frontal attentional regions. Nucleus accumbens activation preceded peak spiritual feelings by 1–3 s and was replicated in four separate tasks. Attentional activation in the anterior cingulate and frontal eye fields was greater in the right hemisphere. The association of abstract ideas and brain reward circuitry may interact with frontal attentional and emotive salience processing, suggesting a mechanism whereby doctrinal concepts may come to be intrinsically rewarding and motivate behavior in religious individuals. PMID:27834117

Process Feasibility Study in Support of Silicon Material, Task 1

NASA Technical Reports Server (NTRS)

Li, K. Y.; Hansen, K. C.; Yaws, C. L.

1979-01-01

During this reporting period, major activies were devoted to process system properties, chemical engineering and economic analyses. Analyses of process system properties was continued for materials involved in the alternate processes under consideration for solar cell grade silicon. The following property data are reported for silicon tetrafluoride: critical constants, vapor pressure, heat of varporization, heat capacity, density, surface tension, viscosity, thermal conductivity, heat of formation and Gibb's free energy of formation. Chemical engineering analysis of the BCL process was continued with primary efforts being devoted to the preliminary process design. Status and progress are reported for base case conditions; process flow diagram; reaction chemistry; material and energy balances; and major process equipment design.

Mixed models approaches for joint modeling of different types of responses.

PubMed

Ivanova, Anna; Molenberghs, Geert; Verbeke, Geert

2016-01-01

In many biomedical studies, one jointly collects longitudinal continuous, binary, and survival outcomes, possibly with some observations missing. Random-effects models, sometimes called shared-parameter models or frailty models, received a lot of attention. In such models, the corresponding variance components can be employed to capture the association between the various sequences. In some cases, random effects are considered common to various sequences, perhaps up to a scaling factor; in others, there are different but correlated random effects. Even though a variety of data types has been considered in the literature, less attention has been devoted to ordinal data. For univariate longitudinal or hierarchical data, the proportional odds mixed model (POMM) is an instance of the generalized linear mixed model (GLMM; Breslow and Clayton, 1993). Ordinal data are conveniently replaced by a parsimonious set of dummies, which in the longitudinal setting leads to a repeated set of dummies. When ordinal longitudinal data are part of a joint model, the complexity increases further. This is the setting considered in this paper. We formulate a random-effects based model that, in addition, allows for overdispersion. Using two case studies, it is shown that the combination of random effects to capture association with further correction for overdispersion can improve the model's fit considerably and that the resulting models allow to answer research questions that could not be addressed otherwise. Parameters can be estimated in a fairly straightforward way, using the SAS procedure NLMIXED.

[Work-to-family influence and social supports: job satisfaction in a north-Italy public health organization --differences between medical and administrative staff].

PubMed

Colombo, Lara; Zito, Margherita; Ghislieri, Chiara

2012-01-01

In recent years, the interest in the well-being at work has grown considerably, also considering the latest law directives. Several scholars have devoted particular attention to the topic of the work-to-family influence and of social supports, as elements able to affect the perceived well-being. The well-being in health care has to consider the particular nature of work and the relevant relational dimensions that require special attention for the emotional side. The research was promoted by the Committee for Equal Opportunities of a public health organization in the North-West Italy. Referring to the job demands-resources theoretical model, this study investigated the role of organizational and family supports, work-to-family spillover (positive and negative) and family workload as possible determinants of job satisfaction, intended as an indicator of psychological well-being at work. Respondents to the questionnaire are 541 (55% of the total employees), their average age is 43 and they are mostly women (80%). Data analysis showed the central role of supervisors supports, of the co-workers supports and, to a lesser extent, the role of the work-to-family spillover in influencing job satisfaction. Moreover, significant differences between medical and administrative staff were detected. The centrality of supports, especially those of supervisors in determining job satisfaction, is in line with studies indicating that a supportive leadership and a family-friendly culture can facilitate the arise of positive outcomes for both workers and organizations.

Auditory Processing in Infancy: Do Early Abnormalities Predict Disorders of Language and Cognitive Development?

ERIC Educational Resources Information Center

Guzzetta, Francesco; Conti, Guido; Mercuri, Eugenio

2011-01-01

Increasing attention has been devoted to the maturation of sensory processing in the first year of life. While the development of cortical visual function has been thoroughly studied, much less information is available on auditory processing and its early disorders. The aim of this paper is to provide an overview of the assessment techniques for…

On the Science of Embodied Cognition in the 2010s: Research Questions, Appropriate Reductionism, and Testable Explanations

ERIC Educational Resources Information Center

Nunez, Rafael

2012-01-01

"The Journal of the Learning Sciences" has devoted this special issue to the study of embodied cognition (as it applies to mathematics), a topic that for several decades has gained attention in the cognitive sciences and in mathematics education, in particular. In this commentary, the author aims to address crucial questions in embodied…

Radiological Protection in Medicine; OCHRONA RADIOLOGICZNA W MEDYCYNIE

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

None

1961-01-01

A handbook is presented for the application of nuclear phenomena and techniques to medical diagnostics and treatment. A large portion is devoted to fundamental nuclear chemistry and physics, paying special attention to tracer techniques. In addition to principles of dosimetry the government regulations applicable to medical exposures are described together with a survey of the fleld of health physics. (TTT)

Sex, Gender, and Aspirations to Top Management: Who's Opting out? Who's Opting in?

ERIC Educational Resources Information Center

Powell, Gary N.; Butterfield, D. Anthony

2013-01-01

The "opt-out revolution" has become a much-discussed phenomenon over the last decade. According to media reports, highly educated women are increasingly opting out of careers that would place them on the fast track to top management levels. However, little attention has been devoted to whether the opt-out revolution may also apply to highly…

Gender Differences in Youths' Political Engagement and Participation. The Role of Parents and of Adolescents' Social and Civic Participation

ERIC Educational Resources Information Center

Cicognani, Elvira; Zani, Bruna; Fournier, Bernard; Gavray, Claire; Born, Michel

2012-01-01

Research examining youths' political development mostly focused on young people as a general group; comparatively less attention has been devoted to the examination of gender pathways toward citizenship. Two studies were conducted addressing (a) the role of parents' participation and the moderating role of adolescent gender and age group (n =…

"Are You with Me?" A Metadiscursive Analysis of Interactive Strategies in College Students' Course Presentations

ERIC Educational Resources Information Center

Agnes, Magnuczne Godo

2012-01-01

In recent years increasing research attention has been devoted to the definition and development of presentation skills. As an interactive oral discourse type, the presentation is characterised by specific speech acts, of which cooperative acts have proved to be of a highly developmental nature (Sazdovska, 2009). The aim of the present paper is to…

Water and watershed management in India: Policy issues and priority areas for future research

Treesearch

Satish Chandra; K. K. S. Bhatia

2000-01-01

India's present food requirements of 220 million tonnes will likely increase to 340 million tonnes in 20 years. Expansion in the agriculture sector to meet these demands can be achieved only by devoting greater attention to restoring watershed lands previously degraded by excessive soil erosion to higher productivity and more efficiently utilizing the country...

Performing leisure, making place: Wilderness identity and representation in online trip reports [Chapter 16

Treesearch

Daniel R. Williams; Joseph G. Champ

2015-01-01

Efforts to understand leisure as a spatial practice are surprisingly recent. It is only in the past decade or two that leisure studies has devoted much attention to the vital role of place and spatial practices for understanding how leisure is performed and experienced, how leisure related identities are constructed and affirmed, and ultimately how through these...

Nutritional Biochemistry

NASA Technical Reports Server (NTRS)

Smith, Scott M.

2010-01-01

This slide presentation reviews some of the effects that space flight has on humans nutritional biochemistry. Particular attention is devoted to the study of protein breakdown, inflammation, hypercatabolism, omega 3 fatty acids, vitamin D, calcium, urine, folate and nutrient stability of certain vitamins, the fluid shift and renal stone risk, acidosis, iron/hematology, and the effects on bone of dietary protein, potassium. inflammation, and omega-3 fatty acids

In Search of Police Investigative Thinking Styles: An Exploratory Study of Detectives in Norway and Singapore

ERIC Educational Resources Information Center

Dean, Geoff; Fahsing, Ivar Andre; Gottschalk, Petter

2007-01-01

In this paper, we argue that more research attention needs to be devoted to profile how investigators think when attempting to solve crimes and dismantle terrorist networks. Since 9/11, there is much activity focused on profiling criminals and terrorists but little on the other side of the investigative equation the detectives/investigators…

Coverage of Major Topics in Economics in the Undergraduate Curriculum: Economists as Gatekeepers.

ERIC Educational Resources Information Center

Prescott, Suzanne

Over the last 25 years, less attention has been devoted to the role of the economist as teacher or professor than to the role of economist as scholar or researcher. Teachers have been seen as passive recipients of advances in economics research that they simply hand on to their students. Yet teachers perform an important gatekeeping function when…

Social and Environmental Factors and Their Influence on Drug Use Vulnerability and Resiliency in Rural Populations

ERIC Educational Resources Information Center

Dew, Brian; Elifson, Kirk; Dozier, Michael

2007-01-01

Findings from recent epidemiological investigations indicate that substance use in rural America has increased to the point where it nearly equals, if not exceeds, the rates found in suburban and urban areas. Although previous research has examined factors that have influenced use patterns, little attention has been devoted to the social and…

Superintendents' Perceptions about Social Distance, Succession, and "Sunset" Provisions for Asian, Latino, and Native American Candidates Seeking Building-Level Administrator Positions

ERIC Educational Resources Information Center

Young, I. Phillip; De La Torre, Guadalupe Xavier

2006-01-01

Research addressing the attraction and selection of individuals for administrator positions is encapsulated in a structural model that depicts different phases of the employee procurement process. Within the present study, attention is devoted to the prescreening stage of the selection process, and screening decisions of superintendents are…

Willingness to Communicate in the Second Language: Understanding the Decision to Speak as a Volitional Process

ERIC Educational Resources Information Center

MacIntyre, Peter D.

2007-01-01

Previous research has devoted a great deal of attention to describing the long-term patterns and relationships among trait-level or situation-specific variables. The present discussion extracts kernels of wisdom, based on the literatures on language anxiety and language learning motivation, that are used to frame the argument that choosing to…

Teaching about the Income Statement and Balance Sheet in a Beginning Business German Course.

ERIC Educational Resources Information Center

Rudolf, Uwe

A review of business German textbooks reveals that few give significant attention to accounting terminology. Both German majors and business majors enrolled in business German need to be introduced to the balance sheet and income statement. It is possible to devote one or two class sessions to accounting by limiting content to a minimal but solid…

Psychosocial Adjustment of Low-Income African American Youth from Single Mother Homes: The Role of the Youth-Coparent Relationship

ERIC Educational Resources Information Center

Sterrett, Emma M.; Jones, Deborah J.; Kincaid, Carlye

2009-01-01

African American youth from single mother homes are at greater risk for internalizing and externalizing problems relative to their peers from two-parent homes. Although the predominance of psychosocial research on these youth has focused on maternal parenting and mother-child relationship quality, far less attention has been devoted to the quality…

Assessing the Impact of a Statewide STEM Investment on K-12, Higher Education, and Business/Community STEM Awareness over Time

ERIC Educational Resources Information Center

Sondergeld, Toni A.; Johnson, Carla C.; Walten, Janet B.

2016-01-01

Despite monetary and educational investments in science, technology, engineering, and mathematics (STEM) being at record high levels, little attention has been devoted to generating a common understanding of STEM. In addition, working with business, K-12 schools, and/or institutions of higher education to establish a grassroots effort to help…

Understanding and Reversing Underachievement, Low Achievement, and Achievement Gaps among High-Ability African American Males in Urban School Contexts

ERIC Educational Resources Information Center

Ford, Donna Y.; Moore, James L., III

2013-01-01

This article focuses on the achievement gap, with attention devoted to underachievement and low achievement among African American males in urban school contexts. More specifically, the article explains problems and issues facing or confronting these Black male students in urban education settings. A central part of this discussion is grounded in…

Learning Autonomously: Contextualising Out-of-Class English Language Learning

ERIC Educational Resources Information Center

Hyland, Fiona

2004-01-01

This paper examines the out-of-class English language learning activities of student teachers in Hong Kong, using questionnaires, interviews and learner diaries. The study found that while many of the students devoted considerable time to studying and practising English outside the classroom, much of this time was spent on more receptive…

Students' Positions and Considerations of Scientific Evidence about a Controversial Socioscientific Issue

ERIC Educational Resources Information Center

Albe, Virginie

2008-01-01

Efforts have been devoted to introduce in science curricula direct instruction for evaluating scientific reports on socioscientific issues. In this study, students' opinions on the SSI of mobile telephones effects have been investigated before and after a classroom activity designed to enable students to assess scientific data. Aspects of the…

In depth review of the 1979 AIAA Lighter-Than-Air Systems Technology Conference

NASA Technical Reports Server (NTRS)

Ardema, M. D.

1979-01-01

The lighter than air (LTA) systems technology conference is reviewed. Highlights of the conference were: (1) the interest shown in patrol and surveillance airships, particularly for coastal patrol missions; (2) the session devoted to overviews of foreign activity; and (3) heavy lift and long range transport aircraft design considerations.

Eighth Annual Faculty Convocation.

ERIC Educational Resources Information Center

Babbidge, Homer D., Jr.

In this address, President Homer D. Babbidge of the University of Connecticut reviews a number of important issues on his campus. One of his urgent concerns is the issue of race relations in the community. He suggests devoting 1 full day each month to a community-wide consideration of whatever problem most concerns the community at that time. He…

An Overview: Purposes and Programs.

ERIC Educational Resources Information Center

Hickey, Howard W.

The Mott Foundation has over the years devoted most of its considerable resources to joining together the school and community in the solution of educational problems facing society, but it is only within the last 20 years that it has enlisted the support of colleges and universities. The Mott Institute at Michigan State University focused its…

Captive on a Carousel: Discourses of "New" in Medical Education 1910-2010

ERIC Educational Resources Information Center

Whitehead, Cynthia R.; Hodges, Brian D.; Austin, Zubin

2013-01-01

Medical educators aim to train physicians with sound scientific knowledge, expert clinical skills and an ability to work effectively with patients, colleagues and health systems. Over the past century, educators have devoted considerable thought and effort to how medical education might be improved. Analysing the language used to describe these…

Psychosocial Training in U.S. Internal Medicine and Family Practice Residency Programs.

ERIC Educational Resources Information Center

Gaufberg, Elizabeth H.; Joseph, Robert C.; Pels, Richard J.; Wyshak, Grace; Wieman, Dow; Nadelson, Carol C.

2001-01-01

Surveyed directors of internal medicine (IM) and family practice (FP) residency programs regarding the format, content, and quantity of psychosocial training in their programs, their opinions on topics related to such training, and program demographics. Found considerable variation in content and time devoted to psychosocial training within and…

A Unified Approach to Measurement Error and Missing Data: Overview and Applications

ERIC Educational Resources Information Center

Blackwell, Matthew; Honaker, James; King, Gary

2017-01-01

Although social scientists devote considerable effort to mitigating measurement error during data collection, they often ignore the issue during data analysis. And although many statistical methods have been proposed for reducing measurement error-induced biases, few have been widely used because of implausible assumptions, high levels of model…

Algorithm development

NASA Technical Reports Server (NTRS)

Barth, Timothy J.; Lomax, Harvard

1987-01-01

The past decade has seen considerable activity in algorithm development for the Navier-Stokes equations. This has resulted in a wide variety of useful new techniques. Some examples for the numerical solution of the Navier-Stokes equations are presented, divided into two parts. One is devoted to the incompressible Navier-Stokes equations, and the other to the compressible form.

Systems Models and Programs for Higher Education. A Catalogue.

ERIC Educational Resources Information Center

Shoemaker, William A.

In recent years there has been considerable effort devoted to the development of systems models and programs that would assist college and university administrators in obtaining and analyzing data about internal operations. Such management data presumably would be helpful in decisionmaking. In this document an effort has been made to provide a…

Kanye West versus Kris Allen: Teaching Rhetorical Structure via Music

ERIC Educational Resources Information Center

Kaylor, Brian T.

2012-01-01

One important aspect of analyzing a rhetorical text is through consideration of the text or artifact's structure, which is why rhetorical criticism textbooks often devote a chapter to issues of structure, form, or genre. Such an emphasis should not be surprising since understanding rhetorical structure remains a foundational concept for rhetorical…

Education Access and Retention for Street Children: Perspectives from Kenya

ERIC Educational Resources Information Center

Kisirkoi, Florence Kanorio; Mse, Godfrey Shed

2016-01-01

Human beings and specifically in African societies value children for they determine the communities' future and place them at the centre of their family life. Over the decades, governments have recognized the importance of children in their development efforts and have devoted considerable resources to child development especially in education…

Exceptional Children Conference Papers: Problems of Auditory, Visual and Speech Impairments.

ERIC Educational Resources Information Center

Council for Exceptional Children, Arlington, VA.

The collection of eight conference papers on problems of auditory, visual, and speech handicaps begins with a review of what is known about deaf-blind children and early development. Following papers are devoted to spontaneous vocalization and babbling in aurally handicapped infants, psychological synergism (an approach to consideration of…

Forestland values.

Treesearch

John H. Beuter; Ralph J. Alig

2004-01-01

This issue of the journal of Forestry is devoted to articles about forestland values. Viewed broadly, natural resources and humans are our two basic resources. An expression of the importance of land as a foundation for forest ecosystems is forestland value. Our attitudes about land and the forest ecosystems that they support have changed considerably in recent years....

Performance of Deaf Children on Memory Tasks: Some Considerations.

ERIC Educational Resources Information Center

Green, Bernard L.

1980-01-01

This paper makes a start in the search for a fair test of prelingually deaf children's short-term visual memory ability by exploring the coding problems presented to them by the traditional digit-span test. It suggests that more research be devoted to the problem of stimulus-response compatibility. (Suthor/SJL)

The Importance of Friendship for Youth with Attention-Deficit/Hyperactivity Disorder

PubMed Central

Mikami, Amori Yee

2010-01-01

It is well-established that youth with attention-deficit/hyperactivity disorder (ADHD) are often peer-rejected and rated by parents, teachers, and observers to have poor social skills, when compared to typically developing peers. Significantly less research, however, has been devoted to the experiences youth with ADHD have in their close friendships. The aim of this article is to draw attention to friendship as a distinct construct from peer rejection and social skills and to summarize what is known about youth with ADHD in their friendships. The potential for stable, high-quality friendships to buffer the negative outcomes typically conferred by peer rejection in this population is discussed. This article concludes with recommendations for interventions that specifically target improving the close friendships of youth with ADHD as a treatment strategy. PMID:20490677

Memorizing Is Not a Dirty Word: What Should a Mathematics Teacher Know to Use It Effectively in Teaching and Learning Mathematics?

ERIC Educational Resources Information Center

Sharma, Mahesh C.

1985-01-01

This bulletin concerns the role of memorization in mathematics instruction. Sections of the bulletin are devoted to discussions of: old math vs. new math; the importance of memorization ability on mathematics learning; misconceptions about memory; how to enhance the memory, including short-term vs. long-term memory systems, attention, interest,…

Creative Relaxation, Motor Creativity, Self-Concept in a Sample of Children from Early Childhood Education

ERIC Educational Resources Information Center

Justo, Clemente Franco

2008-01-01

Introduction: Although there have been many definitions and much research has been done in the field of creativity in the last few years, scarce attention has been devoted to studying and investigating the motor area of creativity. In this study we sought to verify the effect that a creative relaxation programme could have on the self-concept…

Diversification of Women's Employment and Training. ILO/Japan Tripartite Seminar Report (Tokyo, Japan, December 8-12, 1986).

ERIC Educational Resources Information Center

International Labour Office, Bangkok (Thailand). Regional Office for Asia and the Pacific.

This report presents the work of a seminar that focused attention on the occupational segregation of men and women in developing nations in Asia. Chapters I and II give a summary of the seminar proceedings and the full text of its findings. Chapter III is devoted to five resource papers: "Diversification of Women's Occupations: A Regional…

Mechanochemical synthesis of organic compounds and composites with their participation

NASA Astrophysics Data System (ADS)

Lyakhov, Nikolai Z.; Grigorieva, Tatiana F.; Barinova, Antonina P.; Vorsina, I. A.

2010-05-01

The results of experimental studies in the mechanochemical synthesis of organic compounds and composites with their participation published over the last 15 years are described systematically. The key reactions of organic compounds are considered: synthesis of the salts of organic acids, acylation, substitution, dehalogenation, esterification, hydrometallation and other reactions. Primary attention is devoted to systems and compounds that cannot be obtained by traditional chemistry methods.

Common Ground: A Roadmap to Investing in What Works for Children in Tough Fiscal Times. Research Brief. Publication #2012-40

ERIC Educational Resources Information Center

Usdansky, Margaret L.

2012-01-01

The size of the nation's debt has important implications for children and families and for programs that serve them. Even so, children received relatively little attention during the recently concluded presidential campaign. This fall, Child Trends devoted its 2012 Kristin Anderson Moore Lecture to the implications of the debt for children to…

[HEALTH-IMPROVING REMEDIES ON THE BASIS OF SMECTITE®].

PubMed

Shirobokov, V; Yankovskii, D; Dyment, G

2015-01-01

The review is devoted to the issues of using smectites in medicine. Modern information concerning smectite composition, structure, physico-chemical properties and reasonability of using them with health-improving purposes is presented. Special attention is given to smectite sorbtional and ionic properties and their unique mineral composition. Characterization is given to modern preparation based on smectites, including developed in Ukraine dietary additives of the series Smectovit®.

Guidance of visual search by memory and knowledge.

PubMed

Hollingworth, Andrew

2012-01-01

To behave intelligently in the world, humans must be able to find objects efficiently within the complex environments they inhabit. A growing proportion of the literature on visual search is devoted to understanding this type of natural search. In the present chapter, I review the literature on visual search through natural scenes, focusing on the role of memory and knowledge in guiding attention to task-relevant objects.

Covariant relativistic hydrodynamics of multispecies plasma and generalized Ohm's law

NASA Astrophysics Data System (ADS)

Gedalin, Michael

1996-04-01

Fully covariant hydrodynamical equations for a multispecies relativistic plasma in an external electromagnetic field are derived. The derived multifluid description takes into account binary Coulomb collisions, annihilation, and interaction with the photon background in terms of the invariant collision cross sections. A generalized Ohm's law is derived in a manifestly covariant form. Particular attention is devoted to the relativistic electron-positron plasma.

Linking Childhood Sexual Abuse and Early Adolescent Risk Behavior: The Intervening Role of Internalizing and Externalizing Problems

ERIC Educational Resources Information Center

Jones, Deborah J.; Lewis, Terri; Litrownik, Alan; Thompson, Richard; Proctor, Laura J.; Isbell, Patricia; Dubowitz, Howard; English, Diana; Jones, Bobby; Nagin, Daniel; Runyan, Desmond

2013-01-01

A robust literature links childhood sexual abuse (CSA) to later substance use and sexual risk behavior; yet, relatively little empirical attention has been devoted to identifying the mechanisms linking CSA to risky behavior among youth, with even less work examining such processes in boys. With the aim of addressing this gap in the literature, the…

Czechoslovak Advances in Medical Science

DTIC Science & Technology

1960-08-03

studies of the changes occurring in the huge water masses of the’valley reservoirs. The regularities of these, changes were determined, and methods for...great attention devoted to the study of the effect of atmospheric pollution on the health of the population has yielded results at the...The huge tasks of planning and construction of urban and country residences made necessary the systematic study of all hygienic problems here

Looking beyond What's Broken: Towards an Appreciative Research Agenda for Physical Education and Sport Pedagogy

ERIC Educational Resources Information Center

Enright, Eimear; Hill, Joanne; Sandford, Rachel; Gard, Michael

2014-01-01

Despite the volume of research devoted to the many ills that beset the pedagogical field of physical education and sport, we begin by arguing that there has been insufficient attention given to the way scholars conceptualise change and imagine bringing it about. In particular, we point to a tendency within the field to prioritise problems--what's…

Does Theory of Mind Performance Differ in Children with Early-Onset and Regressive Autism?

ERIC Educational Resources Information Center

Matthews, Nicole L.; Goldberg, Wendy A.; Lukowski, Angela F.; Osann, Kathryn; Abdullah, Maryam M.; Ly, Agnes R.; Thorsen, Kara; Spence, M. Anne

2012-01-01

A deficit in theory of mind (ToM), or the ability to infer the mental states of others, has been implicated as one of the major characteristics of Autism Spectrum Disorder (ASD); however, little attention has been devoted to possible differences in ToM ability within ASD. The current study examined ToM performance in children with early-onset…

Mediterranean diet and inflammaging within the hormesis paradigm.

PubMed

Martucci, Morena; Ostan, Rita; Biondi, Fiammetta; Bellavista, Elena; Fabbri, Cristina; Bertarelli, Claudia; Salvioli, Stefano; Capri, Miriam; Franceschi, Claudio; Santoro, Aurelia

2017-06-01

A coherent set of epidemiological data shows that the Mediterranean diet has beneficial effects capable of preventing a variety of age-related diseases in which low-grade, chronic inflammation/inflammaging plays a major role, but the underpinning mechanism(s) is/are still unclear. It is suggested here that the Mediterranean diet can be conceptualized as a form of chronic hormetic stress, similar to what has been proposed regarding calorie restriction, the most thoroughly studied nutritional intervention. Data on the presence in key Mediterranean foods of a variety of compounds capable of exerting hormetic effects are summarized, and the mechanistic role of the nuclear factor erythroid 2 pathway is highlighted. Within this conceptual framework, particular attention has been devoted to the neurohormetic and neuroprotective properties of the Mediterranean diet, as well as to its ability to maintain an optimal balance between pro- and anti-inflammaging. Finally, the European Commission-funded project NU-AGE is discussed because it addresses a number of variables not commonly taken into consideration, such as age, sex, and ethnicity/genetics, that can modulate the hormetic effect of the Mediterranean diet. © The Author(s) 2017. Published by Oxford University Press on behalf of the International Life Sciences Institute.

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

Fox, T.; Tietjen, G.L.; McInroy, J.F.

The Autopsy Tissue Program was begun in 1960. To date, tissues on 900 or more persons in 7 geographic regions have been collected and analyzed for plutonium content. The tissues generally consist of lung, liver, kidney, lymph, bone, and gonadal tissues for each individual. The original objective of the program was to determine the level of plutonium in human tissues due solely to fallout from weapons testing. The baseline thus established was to be used to evaluate future changes. From the first, this program was beset with chemical and statistical difficulties. Many factors whose effects were not recognized and notmore » planned for were found later to be important. Privacy and ethical considerations hindered the gathering of adequate data. Since the chemists were looking for amounts of plutonium very close to background, possible contamination was a very real problem. Widely used chemical techniques introduced a host of statistical problems. The difficulties encountered touch on areas common to large data sets, unusual outlier detection methods minimum detection limits, problems with aliquot sizes, and time-trends in the data. The conclusions point out areas to which the biologists will have to devote much more careful attention than was believed.« less

A study on the role of powertrain system dynamics on vehicle driveability

NASA Astrophysics Data System (ADS)

Castellazzi, Luca; Tonoli, Andrea; Amati, Nicola; Galliera, Enrico

2017-07-01

Vehicle driveability describes the complex interactions between the driver and the vehicle, mainly related to longitudinal vibrations. Today, a relevant part of the driveability process optimisation is realised by means of track tests, which require a considerable effort due to the number of parameters (such as stiffness and damping components) affecting this behaviour. The drawback of this approach is that it is carried on at a stage when a design iteration becomes very expensive in terms of time and cost. The objective of this work is to propose a light and accurate tool to represent the relevant quantities involved in the driveability analysis, and to understand which are the main vehicle parameters that influence the torsional vibrations transmitted to the driver. Particular attention is devoted to the role of the tyre, the engine mount, the dual mass flywheel and their possible interactions. The presented nonlinear dynamic model has been validated in time and frequency domain and, through linearisation of its nonlinear components, allows to exploit modal and energy analysis. Objective indexes regarding the driving comfort are additionally considered in order to evaluate possible driveability improvements related to the sensitivity of powertrain parameters.

Comparing the Cognitive Process of Circular Causality in Two Patients with Strokes through Qualitative Analysis.

PubMed

Derakhshanrad, Seyed Alireza; Piven, Emily; Ghoochani, Bahareh Zeynalzadeh

2017-10-01

Walter J. Freeman pioneered the neurodynamic model of brain activity when he described the brain dynamics for cognitive information transfer as the process of circular causality at intention, meaning, and perception (IMP) levels. This view contributed substantially to establishment of the Intention, Meaning, and Perception Model of Neuro-occupation in occupational therapy. As described by the model, IMP levels are three components of the brain dynamics system, with nonlinear connections that enable cognitive function to be processed in a circular causality fashion, known as Cognitive Process of Circular Causality (CPCC). Although considerable research has been devoted to study the brain dynamics by sophisticated computerized imaging techniques, less attention has been paid to study it through investigating the adaptation process of thoughts and behaviors. To explore how CPCC manifested thinking and behavioral patterns, a qualitative case study was conducted on two matched female participants with strokes, who were of comparable ages, affected sides, and other characteristics, except for their resilience and motivational behaviors. CPCC was compared by matrix analysis between two participants, using content analysis with pre-determined categories. Different patterns of thinking and behavior may have happened, due to disparate regulation of CPCC between two participants.

Accumulation of High-Value Lipids in Single-Cell Microorganisms: A Mechanistic Approach and Future Perspectives

PubMed Central

2015-01-01

In recent years attention has been focused on the utilization of microorganisms as alternatives for industrial and nutritional applications. Considerable research has been devoted to techniques for growth, extraction, and purification of high-value lipids for their use as biofuels and biosurfactants as well as high-value metabolites for nutrition and health. These successes argue that the elucidation of the mechanisms underlying the microbial biosynthesis of such molecules, which are far from being completely understood, now will yield spectacular opportunities for industrial scale biomolecular production. There are important additional questions to be solved to optimize the processing strategies to take advantage of the assets of microbial lipids. The present review describes the current state of knowledge regarding lipid biosynthesis, accumulation, and transport mechanisms present in single-cell organisms, specifically yeasts, microalgae, bacteria, and archaea. Similarities and differences in biochemical pathways and strategies of different microorganisms provide a diverse toolset to the expansion of biotechnologies for lipid production. This paper is intended to inspire a generation of lipid scientists to insights that will drive the biotechnologies of microbial production as uniquely enabling players of lipid biotherapeutics, biofuels, biomaterials, and other opportunity areas into the 21st century. PMID:24628496

Achieving energy efficiency during collective communications

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

Sundriyal, Vaibhav; Sosonkina, Masha; Zhang, Zhao

2012-09-13

Energy consumption has become a major design constraint in modern computing systems. With the advent of petaflops architectures, power-efficient software stacks have become imperative for scalability. Techniques such as dynamic voltage and frequency scaling (called DVFS) and CPU clock modulation (called throttling) are often used to reduce the power consumption of the compute nodes. To avoid significant performance losses, these techniques should be used judiciously during parallel application execution. For example, its communication phases may be good candidates to apply the DVFS and CPU throttling without incurring a considerable performance loss. They are often considered as indivisible operations although littlemore » attention is being devoted to the energy saving potential of their algorithmic steps. In this work, two important collective communication operations, all-to-all and allgather, are investigated as to their augmentation with energy saving strategies on the per-call basis. The experiments prove the viability of such a fine-grain approach. They also validate a theoretical power consumption estimate for multicore nodes proposed here. While keeping the performance loss low, the obtained energy savings were always significantly higher than those achieved when DVFS or throttling were switched on across the entire application run« less

Economic and demographic consequences of AIDS in Namibia: rapid assessment of the costs.

PubMed

Ojo, K; Delaney, M

1997-01-01

Recent announcements by the Government of Namibia to provide financial support to people living with AIDS (and their family members) have received considerable media attention. However, given the fact that government budgets are already stretched, and the need for resources to devote the prevention efforts remains, there is an urgent need to assign some values to the support the government is considering within the context of an explosive epidemic. It is against this background that this study attempts to provide a rapid assessment of the economic costs of HIV/AIDS in Namibia over the next 5 years of the First National Development Plan. The estimates include the direct and indirect costs. The direct costs are costs to the economy for inpatient and outpatient medical services, as well as the costs of support payments to people living with AIDS, their families and children orphaned by AIDS. Government and donor expenditure on national prevention and control efforts are also included. The study concludes that no sector of the Namibian economy will escape the impact of AIDS. The epidemic will definitely tax hospital, public health, private and community resources, and these substantial burdens underscore the need for coordinated long-term planning.

Covalent Heterogenization of a Discrete Mn(II) Bis-Phen Complex by a Metal-Template/Metal-Exchange Method: An Epoxidation Catalyst with Enhanced Reactivity

PubMed Central

Terry, Tracy J.; Stack, T. Daniel P.

2009-01-01

Considerable attention has been devoted to the immobilization of discrete epoxidation catalysts onto solid supports due to the possible benefits of site isolation such as increased catalyst stability, catalyst recycling, and product separation. A synthetic metal-template/metal-exchange method to imprint a covalently attached bis-1,10-phenanthroline coordination environment onto high-surface area, mesoporous SBA-15 silica is reported herein along with the epoxidation reactivity once reloaded with manganese. Comparisons of this imprinted material with material synthesized by random grafting of the ligand show that the template method creates more reproducible, solution-like bis-1,10-phenanthroline coordination at a variety of ligand loadings. Olefin epoxidation with peracetic acid shows the imprinted manganese catalysts have improved product selectivity for epoxides, greater substrate scope, more efficient use of oxidant, and higher reactivity than their homogeneous or grafted analogues independent of ligand loading. The randomly grafted manganese catalysts, however, show reactivity that varies with ligand loading while the homogeneous analogue degrades trisubstituted olefins and produces trans-epoxide products from cis-olefins. Efficient recycling behavior of the templated catalysts is also possible. PMID:18351763

No population genetic structure in a widespread aquatic songbird from the Neotropics

USGS Publications Warehouse

Cadena, Carlos Daniel; Gutierrez-Pinto, Natalia; Davila, Nicolas; Chesser, R. Terry

2011-01-01

Neotropical lowland organisms often show marked population genetic structure, suggesting restricted migration among populations. However, most phylogeographic studies have focused on species inhabiting humid forest interior. Little attention has been devoted to the study of species with ecologies conducive to dispersal, such as those of more open and variable environments associated with watercourses. Using mtDNA sequences, we examined patterns of genetic variation in a widely distributed Neotropical songbird of aquatic environments, the Yellow-hooded Blackbird (Icteridae, Chrysomus icterocephalus). In contrast to many forest species, Yellow-hooded Blackbirds showed no detectable genetic structure across their range, which includes lowland populations on both sides of the Andes, much of northeastern South America, Amazonia, as well as a phenotypically distinct highland population in Colombia. A coalescent-based analysis of the species indicated that its effective population size has increased considerably, suggesting a range expansion. Our results support the hypothesis that species occurring in open habitats and tracking temporally dynamic environments should show increased dispersal propensities (hence gene flow) relative to species from closed and more stable environments. The phenotypic and behavioral variation among populations of our study species appears to have arisen recently and perhaps in the face of gene flow.

Accumulation of high-value lipids in single-cell microorganisms: a mechanistic approach and future perspectives.

PubMed

Garay, Luis A; Boundy-Mills, Kyria L; German, J Bruce

2014-04-02

In recent years attention has been focused on the utilization of microorganisms as alternatives for industrial and nutritional applications. Considerable research has been devoted to techniques for growth, extraction, and purification of high-value lipids for their use as biofuels and biosurfactants as well as high-value metabolites for nutrition and health. These successes argue that the elucidation of the mechanisms underlying the microbial biosynthesis of such molecules, which are far from being completely understood, now will yield spectacular opportunities for industrial scale biomolecular production. There are important additional questions to be solved to optimize the processing strategies to take advantage of the assets of microbial lipids. The present review describes the current state of knowledge regarding lipid biosynthesis, accumulation, and transport mechanisms present in single-cell organisms, specifically yeasts, microalgae, bacteria, and archaea. Similarities and differences in biochemical pathways and strategies of different microorganisms provide a diverse toolset to the expansion of biotechnologies for lipid production. This paper is intended to inspire a generation of lipid scientists to insights that will drive the biotechnologies of microbial production as uniquely enabling players of lipid biotherapeutics, biofuels, biomaterials, and other opportunity areas into the 21st century.

Forming a New Information Services Section: A Case Study--Parliament of the Republic of South Africa.

ERIC Educational Resources Information Center

Ntunja, A.; Gabriel, L.

The South African Library of Parliament and Research unit has devoted considerable time and money to improving its research and library services for members, committees, and management of Parliament. The Library and Research Units have recently re-structured and re-designed services and information products, engaging in collection development…

Harry Potter and the Accreditor's Nightmare: Spells, Standards, and School Quality in an Era of Change

ERIC Educational Resources Information Center

Gow, Peter

2011-01-01

Independent and other accredited schools and colleges are mandated every 10 years to devote considerable time, thought, and treasure to accreditation process. Formerly often regarded as hollow drudgery and something of a "pro forma" exercise, the accreditation process--the preparation of an exhaustive self-study, the sometimes welcome and…

Proteomic analysis of Pigeonpea (cajanus cajan) seeds reveals the accumulation of numerous stress-related proteins

USDA-ARS?s Scientific Manuscript database

Pigeonpea is one of the major sources of dietary protein for more than a billion people living in South Asia. This hardy legume is often grown in low-input and risk-prone marginal environments. Considerable research effort has been devoted by a global research consortium to develop genomic resources...

Is Self-Esteem a Cause or Consequence of Social Support? A 4-Year Longitudinal Study

ERIC Educational Resources Information Center

Marshall, Sarah L.; Parker, Phillip D.; Ciarrochi, Joseph; Heaven, Patrick C. L.

2014-01-01

Considerable research has been devoted to examining the relations between self-esteem and social support. However, the exact nature and direction of these relations are not well understood. Measures of self-esteem, and social support quantity and quality were administered to 961 adolescents across five yearly time points (M[subscript…

Teaching Special Education Law in Saudi Arabia: Improving Pre-Service Teacher Education and Services to Students with Disabilities

ERIC Educational Resources Information Center

Murry, Francie; Alqahtani, Ragea Mohammed Ali

2015-01-01

The government of Saudi Arabia has devoted considerable financial resources toward the education for all goal and in future generations through emphasizing the importance of education and increasing the accountability of teachers' performance on their students' performance. It has emphasized education is to be "Education for All". These…

What Research Tells Us about the Impact and Challenges of Smaller Learning Communities

ERIC Educational Resources Information Center

Levine, Thomas H.

2010-01-01

In the United States, considerable financial and human resources have been devoted to breaking some large high schools into smaller learning communities (SLCs). This article reviews research that compares SLCs to comprehensive high schools on a variety of measures. Extant research neither supports nor refutes the promise of SLCs to improve…

Busting myths and building resilience: Practices and approaches that go beyond mere plan development.

PubMed

Armour, Mark

Dwight D. Eisenhower is often quoted as saying: 'In battle, plans are useless but planning is indispensable'. How many in the business continuity profession actually think about that statement and what it really means? Audit, compliance and regulatory requirements as well as the expectations of executives and business leaders result in an inordinate amount of time and effort devoted to plan development with scant attention paid to actual planning. Practitioners need to realise that the value of the plans they develop is not derived from the finished documents but from the work devoted to completing them. Experience and practice win out above detailed plans. One need look no further than Eisenhower's D-Day invasion of Normandy as evidence. Practitioners need to learn how to be better at instituting preparedness and not simply developing better plans.

LITERATURE FORENSICS? DOOR TO WHAT WAS KNOWN ...

EPA Pesticide Factsheets

Science's all-consuming drive to make new discoveries often risks losing sight of what was already known at one time - that which already exists in the published literature. Inadequate attention to the published literature and insufficient time devoted to its mining and synthesis into new knowledge is a problem faced by all disciplines, especially highly interdisciplinary fields such as environmental forensics, whose knowledge base is fragmented across numerous disciplines. While the conduct of science applies principles of quality assurance to a wide array of its processes, how pervasive are quality controls designed to ensure that planned or ongoing research has not been undertaken before? Has sufficient energy been devoted to mining what has already been discovered and synthesizing it into a larger, more useful perspective? This paper touches on the liabilities associated with insufficient examination of an exponentially growing published literature (

Potential Influence of Climate-Induced Vegetation Shifts on Future Land Use and Associated Land Carbon Fluxes in Northern Eurasia

NASA Astrophysics Data System (ADS)

Kicklighter, D. W.; Cai, Y.; Zhuang, Q.; Parfenova, E. I.; Paltsev, S.; Sokolov, A. P.; Melillo, J. M.; Reilly, J. M.; Tchebakova, N. M.; Lu, X.

2014-12-01

Climate change will alter ecosystem metabolism and may lead to a redistribution of vegetation and changes in fire regimes in Northern Eurasia over the 21st century. Land management decisions will interact with these climate-driven changes to reshape the region's landscape. Here we present an assessment of the potential consequences of climate change on land use and associated land carbon sink activity for Northern Eurasia in the context of climate-induced vegetation shifts. Under a 'business-as-usual' scenario, climate-induced vegetation shifts allow expansion of areas devoted to food crop production (15%) and pastures (39%) over the 21st century. Under a climate stabilization scenario, climate-induced vegetation shifts permit expansion of areas devoted to cellulosic biofuel production (25%) and pastures (21%), but reduce the expansion of areas devoted to food crop production by 10%. In both climate scenarios, vegetation shifts further reduce the areas devoted to timber production by 6-8% over this same time period. Fire associated with climate-induced vegetation shifts causes the region to become more of a carbon source than if no vegetation shifts occur. Consideration of the interactions between climate-induced vegetation shifts and human activities through a modeling framework has provided clues to how humans may be able to adapt to a changing world and identified the tradeoffs, including unintended consequences, associated with proposed climate/energy policies.

Academic self-concept in children with epilepsy and its relation to their quality of life.

PubMed

Brabcova, Dana; Krsek, Pavel; Kohout, Jiri; Jost, Jiri; Zarubova, Jana

2015-04-01

Academic achievement in children with epilepsy is a highly studied topic with many important implications. However, only little attention has been devoted to academic self-concept of such children and the relation of academic self-concept to their quality of life. We aimed to examine academic self-concept in children with epilepsy, to assess its relationship to academic achievement and to determine possible correlations between academic self-concept and quality of life. The study group consisted of 182 children and adolescents aged 9-14 years who completed the student's perception of ability scale (SPAS) questionnaire to determine their academic self-concept and the modified Czech version of the CHEQOL-25 questionnaire to determine their health-related quality of life. We found that academic self-concept in children with epilepsy was on average significantly lower than in their peers without seizures, especially with regard to general school-related abilities, reading, and spelling. On the other hand, the variance in the data obtained from the group of children with epilepsy was significantly higher than in the whole population and the proportion of individuals with very high academic self-concept seems comparable among children with and without epilepsy. Moreover, it was found that correlations between academic self-concept and academic achievement are significantly lower in children with epilepsy than in the whole population. The presented results suggest that considerable attention should be paid to the role of academic self-concept in education of children with epilepsy and to the factors influencing this self-concept in this group.

JPRS Report, East Europe.

DTIC Science & Technology

1988-04-12

the Polish Army Main Political Board [ GZP WP], Gen Tadeusz Szacilo, participated in the briefing. On the first day of the conference—Vice Admiral...Lud- wik Dutkowski, first deputy chief of the GZP WP, participated—participants heard many interesting JPRS-EER-88-030 12 April 1988...in these areas were presented by deputy chief of the GZP WP Brig Gen Tadeusz Kojder and Brig Gen Dr Leslaw Wojtasik. Much attention was devoted to

Examples of Best Practice: "All Together We Are the City"--A Workshop Developed by the Muslim Minority Education Project in Greece

ERIC Educational Resources Information Center

Magos, Kostas

2007-01-01

There is a significant population of Muslim citizens in Greece, sometimes referred to as the Muslim minority, who live in the geographical region of Thrace. For many years, little attention was devoted to the educational needs of this group, and there was consequently a high percentage of school failure and early school leaving. The poorly…

Educational Sorting and Residential Aspirations among Rural High School Students: What Are the Contributions of Schools and Educators to Rural Brain Drain?

ERIC Educational Resources Information Center

Petrin, Robert A.; Schafft, Kai A.; Meece, Judith L.

2014-01-01

An extended body of research has documented the outmigration of the "best and brightest" youth from rural areas. Some of this scholarship has suggested that rural schools and educators may be complicit in this process as they devote extra attention and resources to the highest achieving students--those most likely to leave their rural…

A Review of Experience: Establishing, Operating, Evaluating a Demonstration Nursery Center for the Daytime Care of Infants and Toddlers, 1967-1970. Final Report.

ERIC Educational Resources Information Center

Keister, Mary Elizabeth

This document is the final report of Phase One (1967-1970) of the Group Care of Infants Demonstration (Center) Project. This report devotes major attention to the problems of establishing, operating, and evaluating a group day care center for infant and toddler care. The Center project describes what is required to provide housing, equipment,…

STEPPED GEAR SYNCHRONIZERS,

DTIC Science & Technology

The book concerns Soviet and foreign experience in the design and use of synchronizers in the step gear boxes of transport vehicles. Side by side...with description of the basic steps in the development of the gear engagement mechanisms and of the design used in synchronizers of domestic and foreign...manufacture, in this work much attention is devoted to the theory of gear engagement in gear boxes equipped with synchronizers , and to figuring out

Display technology - Human factors concepts

NASA Astrophysics Data System (ADS)

Stokes, Alan; Wickens, Christopher; Kite, Kirsten

1990-03-01

Recent advances in the design of aircraft cockpit displays are reviewed, with an emphasis on their applicability to automobiles. The fundamental principles of display technology are introduced, and individual chapters are devoted to selective visual attention, command and status displays, foveal and peripheral displays, navigational displays, auditory displays, color and pictorial displays, head-up displays, automated systems, and dual-task performance and pilot workload. Diagrams, drawings, and photographs of typical displays are provided.

Early Childhood Development through an Integrated Program: Evidence from the Philippines. Impact Evaluation Series No. 2. World Bank Policy Research Working Paper 3922-IE

ERIC Educational Resources Information Center

Armecin, Graeme; Behrman, Jere R.; Ghuman, Sharon; Gultiano, Socorro; King, Elizabeth M.; Lee, Nanette

2006-01-01

More attention and resources have been devoted in recent years to early childhood development (ECD) in low- and middle-income countries. Rigorous studies on the effectiveness of ECD-related programs for improving children's development in various dimensions in the developing world are scant. The authors evaluate an important ECD initiative of the…

Conceptual Issues Surrounding Quality of Life in Oncology Nursing.

PubMed

Flannery, Marie

2017-05-01

Quality of life (QOL) is a critical, prevalent, and enduring concept in oncology nursing research and practice. QOL is a paramount issue in the consideration of treatment, goal planning, and decision making for individuals with cancer, their families, and their care providers. Journals, well-developed valid and reliable instruments, and multiple conceptual models and frameworks are devoted to QOL. This column will review two broad conceptual aspects to consider in relation to QOL. First, conceptual considerations will be discussed for the definition and measurement of QOL. Second, conceptual issues related to QOL as an outcome will be discussed.

Neurodevelopmental attributes of joint hypermobility syndrome/Ehlers-Danlos syndrome, hypermobility type: Update and perspectives.

PubMed

Ghibellini, Giulia; Brancati, Francesco; Castori, Marco

2015-03-01

In the last decade, increasing attention has been devoted to the extra-articular and extra-cutaneous manifestations of joint hypermobility syndrome, also termed Ehlers-Danlos syndrome, hypermobility type (i.e., JHS/EDS-HT). Despite the fact that the current diagnostic criteria for both disorders remain focused on joint hypermobility, musculoskeletal pain and skin changes, medical practice and research have started investigating a wide spectrum of visceral, neurological and developmental complications, which represent major burdens for affected individuals. In particular, children with generalized joint hypermobility often present with various neurodevelopmental issues and can be referred for neurological consultation. It is common that investigations in these patients yield negative or inconsistent results, eventually leading to the exclusion of any structural neurological or muscle disorder. In the context of specialized clinics for connective tissue disorders, a clear relationship between generalized joint hypermobility and a characteristic neurodevelopmental profile affecting coordination is emerging. The clinical features of these patients tend to overlap with those of developmental coordination disorder and can be associated with learning and other disabilities. Physical and psychological consequences of these additional difficulties add to the chief manifestations of the pre-existing connective tissue disorder, affecting the well-being and development of children and their families. In this review, particular attention is devoted to the nature of the link between joint hypermobility, coordination difficulties and neurodevelopmental issues in children. Presumed pathogenesis and management issues are explored in order to attract more attention on this association and nurture future clinical research. © 2015 Wiley Periodicals, Inc.

The Value of Learning English in Thailand and Its Impact on Thai: Perspectives from University Students

ERIC Educational Resources Information Center

Hayes, David

2016-01-01

English is widely regarded as an essential skill for the globalized economy by governments around the world which devote considerable resources to its teaching in formal education, though often with limited success in terms of achievement levels. Thailand is a case in point. Set against the putative benefits of acquiring proficiency in English,…

The Role of Schools in Bridging Within-School Achievement Gaps Based on Socioeconomic Status: A Cross-National Comparative Study

ERIC Educational Resources Information Center

Huang, Haigen; Sebastian, James

2015-01-01

Since the publication of the Coleman report in 1966, research on the role of schools in influencing student achievement relative to the role of family background has generated considerable interest and controversy. A large volume of international and comparative research has also been devoted to studying school effects on student achievement.…

Early Contributions to the Evolution of the Canadian Scientific Integrity System: Institutional and Governmental Interaction in the Policy Diffusion Process

ERIC Educational Resources Information Center

Schoenherr, Jordan Richard; Williams-Jones, Bryn

2016-01-01

Academic institutions and research funders have in the last decade devoted considerable effort to developing policies to support academic integrity and prevent misconduct. In this study, we consider the extent to which various initiatives of Canadian federal and provincial (Québec) funders have affected the development of institutional research…

Biological and physical influences on the carbon isotope content of CO2 in a subalpine forest snowpack, Niwot Ridge, Colorado

Treesearch

D. R. Bowling; W. J. Massman; S. M. Schaeffer; S. P. Burns; R. K. Monson; M. W. Williams

2009-01-01

Considerable research has recently been devoted to understanding biogeochemical processes under winter snow cover, leading to enhanced appreciation of the importance of many winter ecological processes. In this study, a comprehensive investigation of the stable carbon isotope composition (δ 13C) of CO2 within a high-elevation subalpine...

Properties of native plant communities do not determine exotic success during early forest succession

Treesearch

Aldo Compagnoni; Charles B. Halpern

2009-01-01

Considerable research has been devoted to understanding how plant invasions are influenced by properties of the native community and to the traits of exotic species that contribute to successful invasion. Studies of invasibility are common in successionally stable grasslands, but rare in recently disturbed or seral forests. We used 16 years of species richness and...

The phenomenology of the psychotic break and Huxley's trip: substance use and the onset of psychosis.

PubMed

Nelson, Barnaby; Sass, Louis A

2008-01-01

While considerable research attention has been devoted to the causal relationship between substance use and psychosis, the phenomenology of the association between the two has largely been ignored. This is a significant shortcoming, because it blinds researchers to the possibility that there may be elements of the subjective experience of substance use and psychosis that contribute to their apparent relationship in empirical studies. The current paper examines the phenomenology of the onset of psychosis and the phenomenology of substance intoxication through consideration of two texts: Sass's account of the phenomenology of psychosis onset and Huxley's account of the experience of hallucinogenic intoxication. Sass's account of psychosis onset includes four components: Unreality, Fragmentation, Mere Being, and Apophany. The analysis reveals significant parallels - and also some differences - between this account and the phenomenology of substance intoxication. We discuss the implications of this for the causal relationship between psychosis and substance use and suggest several ways of understanding the overlapping phenomenologies. This includes the suggestion of a shared factor, perhaps best described as psychotic-like experience, which seems to involve a breakdown of the sign-referent relationship and relationship with the common-sense, practical world. However, in the onset of psychosis, this breakdown is primarily experienced as a sense of alienation from self and world, whereas in the hallucinogenic state a sense of mystical union and revelation seems predominant. Further research may extend this analysis by looking at experiences with other drugs, particularly cannabis, and by examining the phenomenology of psychotic disorder beyond the first episode. (c) 2008 S. Karger AG, Basel.

Hybrid codes with finite electron mass

NASA Astrophysics Data System (ADS)

Lipatov, A. S.

This report is devoted to the current status of the hybrid multiscale simulation technique. The different aspects of modeling are discussed. In particular, we consider the different level for description of the plasma model, however, the main attention will be paid to conventional hybrid models. We discuss the main steps of time integration the Vlasov/Maxwell system of equations. The main attention will be paid to the models with finite electron mass. Such model may allow us to explore the plasma system with multiscale phenomena ranging from ion to electron scales. As an application of hybrid modeling technique we consider the simulation of the plasma processes at the collisionless shocks and very shortly ther magnetic field reconnection processes.

Spatial context learning survives interference from working memory load

PubMed Central

Vickery, Timothy J.; Sussman, Rachel S.; Jiang, Yuhong V.

2010-01-01

The human visual system is constantly confronted with an overwhelming amount of information, only a subset of which can be processed in complete detail. Attention and implicit learning are two important mechanisms that optimize vision. This study addresses the relationship between these two mechanisms. Specifically we ask: Is implicit learning of spatial context affected by the amount of working memory load devoted to an irrelevant task? We tested observers in visual search tasks where search displays occasionally repeated. Observers became faster searching repeated displays than unrepeated ones, showing contextual cueing. We found that the size of contextual cueing was unaffected by whether observers learned repeated displays under unitary attention or when their attention was divided using working memory manipulations. These results held when working memory was loaded by colors, dot patterns, individual dot locations, or multiple potential targets. We conclude that spatial context learning is robust to interference from manipulations that limit the availability of attention and working memory. PMID:20853996

Attentional and non-attentional systems in the maintenance of verbal information in working memory: the executive and phonological loops

PubMed Central

Camos, Valérie; Barrouillet, Pierre

2014-01-01

Working memory is the structure devoted to the maintenance of information at short term during concurrent processing activities. In this respect, the question regarding the nature of the mechanisms and systems fulfilling this maintenance function is of particular importance and has received various responses in the recent past. In the time-based resource-sharing (TBRS) model, we suggest that only two systems sustain the maintenance of information at the short term, counteracting the deleterious effect of temporal decay and interference. A non-attentional mechanism of verbal rehearsal, similar to the one described by Baddeley in the phonological loop model, uses language processes to reactivate phonological memory traces. Besides this domain-specific mechanism, an executive loop allows the reconstruction of memory traces through an attention-based mechanism of refreshing. The present paper reviews evidence of the involvement of these two independent systems in the maintenance of verbal memory items. PMID:25426049

Application of conventional and advanced techniques for the interpretation of LANDSAT 2 images for the study of linears in the Friuli earthquake area

NASA Technical Reports Server (NTRS)

Cardamone, P.; Lechi, G. M.; Cavallin, A.; Marino, C. M.; Zanferrari, A.

1977-01-01

The results obtained in the study of linears derived from the analysis of LANDSAT 2 images recorded over Friuli during 1975 are described. Particular attention is devoted to the comparison of several passes in different bands, scales and photographic supports. Moreover reference is made to aerial photographic interpretation in selected sites and to the information obtained by laser techniques.

Scattering of ultrashort electromagnetic pulses on metal clusters

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

Astapenko, V. A., E-mail: astval@mail.ru; Sakhno, S. V.

We have calculated and analyzed the probability of ultrashort electromagnetic pulse (USP) scattering on small metal clusters in the frequency range of plasmon resonances during the field action. The main attention is devoted to dependence of the probability of scattering on the pulse duration for various detunings of the USP carrier frequency from the plasmon resonance frequency. Peculiarities of the USP scattering from plasmon resonances with various figures of merit are revealed.

L'E.A.P. ou l'anglais enseigne dans les etudes superieures. Un guide pour le debutant (E.A.P. or English for Academic Purposes: A Guide for the Beginner).

ERIC Educational Resources Information Center

Roe, Peter J.

1981-01-01

Addresses those readers who are not familiar with EAP, offering an introductory discussion of its objectives and methods, in two parts. Devotes the first part to the needs that justify an EAP approach, and the second to its methodology, with particular attention to interdisciplinary, task-oriented instruction. Societe Nouvelle Didier Erudition, 40…

Scattering of ultrashort electromagnetic pulses on metal clusters

NASA Astrophysics Data System (ADS)

Astapenko, V. A.; Sakhno, S. V.

2016-12-01

We have calculated and analyzed the probability of ultrashort electromagnetic pulse (USP) scattering on small metal clusters in the frequency range of plasmon resonances during the field action. The main attention is devoted to dependence of the probability of scattering on the pulse duration for various detunings of the USP carrier frequency from the plasmon resonance frequency. Peculiarities of the USP scattering from plasmon resonances with various figures of merit are revealed.

Inelastic collisions of positrons with one-valence-electron targets

NASA Technical Reports Server (NTRS)

Abdel-Raouf, Mohamed Assad

1990-01-01

The total elastic and positronium formation cross sections of the inelastic collisions between positrons and various one-valence-electron atoms, (namely hydrogen, lithium, sodium, potassium and rubidium), and one-valence-electron ions, (namely hydrogen-like, lithium-like and alkaline-earth positive ions) are determined using an elaborate modified coupled-static approximation. Special attention is devoted to the behavior of the Ps cross sections at the energy regions lying above the Ps formation thresholds.

Stall-proof Airplanes

NASA Technical Reports Server (NTRS)

Lachmann, G

1927-01-01

My lecture has to do with the following questions. Is the danger of stalling necessarily inherent in the airplane in its present form and structure, or can it be diminished or eliminated by suitable means? Do we possess such means or devices and how must they operate? In this connection I will devote special attention to the exhibition of stall-proof airplanes by Fokker under the auspices of the English Air Ministry, which took place in Croyden last April.

On the conservation of adiabatic invariants for a system of coupled rotators

NASA Astrophysics Data System (ADS)

Benettin, G.; Carati, A.; Fassò, F.

1997-02-01

We study the accuracy of the conservation of adiabatic invariants in a model of n weakly coupled rotators. Most attention is devoted to n = 2 and frequency ω = ( ω1, ω2), with {ω 2}/{ω 1} quadratic irrational. We apply a heuristic approximation scheme, going back to Jeans and to Landau and Teller, and perform a very accurate numerical check of the result, observing a quite remarkable agreement.

Procedures for making gaseous industrial waste safe

NASA Astrophysics Data System (ADS)

Matros, Yu Sh; Noskov, Aleksandr S.

1990-10-01

The application of various methods (adsorption, absorption, thermal afterburning, catalytic purification, and others) for the removal of sulphur and nitrogen oxides, toxic organic compounds, hydrogen sulphide, and carbon monoxide from industrial waste gases is described. Much attention is devoted to the catalytic procedure for making the gases safe using an energy collecting non-stationary method (reversible process). The advantages and limitations of various gas purification methods are considered. The bibliography includes 279 references.

System Analysis and Design of a Low-Cost Micromechanical Seeker System

DTIC Science & Technology

2008-06-01

reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching...who devoted a valuable amount of time to advising me with academic coursework as well as thesis research. Dan, your attention to detail and ability...never have come to be. Many thanks to Sean George, who sacrificed his valuable time to guide me through constructing the projectile flight simulation

The emotion-induced memory trade-off: more than an effect of overt attention?

PubMed

Steinmetz, Katherine R Mickley; Kensinger, Elizabeth A

2013-01-01

Although it has been suggested that many effects of emotion on memory are attributable to attention, in the present study we addressed the hypothesis that such effects may relate to a number of different factors during encoding or postencoding. One way to look at the effects of emotion on memory is by examining the emotion-induced memory trade-off, whereby enhanced memory for emotional items often comes at the cost of memory for surrounding background information. We present evidence that this trade-off cannot be explained solely by overt attention (measured via eyetracking) directed to the emotional items during encoding. Participants did not devote more overt attention to emotional than to neutral items when those items were selectively remembered (at the expense of their backgrounds). Only when participants were asked to answer true/false questions about the items and the backgrounds--a manipulation designed to affect both overt attention and poststimulus elaboration--was there a reduction in selective emotional item memory due to an increase in background memory. These results indicate that the allocation of overt visual attention during encoding is not sufficient to predict the occurrence of selective item memory for emotional items.

Translations on USSR Military Affairs, Number 1287

DTIC Science & Technology

1977-07-22

and engineering personnel. Each year, a considerable detachment of young officers who are boundlessly devoted to the cause of the party and who...behavior by individual officers, especially young ones, are often the result of gaps in their training and education in the military educational...clear control and check of execution, criticism and self criticism, assistance to the young officers in mastering the skill for the military

X-Ray Topographic Studies of Energetic Materials.

DTIC Science & Technology

1987-03-01

role of these defects in crystal growth and in the microplasticity of the solid. 1.1 Experimental Techniques The method chosen for the detailed...the electron microscope. The examinations can be readily extended to detailed studies of the microplasticity of the materials using stress/strain...the availability of large, high quality, single crystals. A considerable part of the initial contract was devoted to the determination of conditions

The Social Construction of Young People within Education Policy: Evidence from the UK's Coalition Government

ERIC Educational Resources Information Center

Brooks, Rachel

2013-01-01

Since assuming power in May 2010, the UK's Coalition government has devoted considerable energy to formulating its policies with respect to young people. Evidence of this can be found in "Positive for youth: a new approach to cross-government policy for young people aged 13-19", a policy text that outlines a wide range of measures to be…

Regional Development Impacts Multi-Regional - Multi-Industry Model (MRMI) Users Manual,

DTIC Science & Technology

1982-09-01

indicators, described in Chapter 2, are estimated as well. Finally, MRMI is flexible, as it can incorporate alternative macroeconomic , national inter...national and regional economic contexts and data sources for estimating macroeconomic and direct impacts data. Considerations for ensuring consistency...Chapter 4 is devoted to model execution and the interpretation of its output. As MRMI forecasts are based upon macroeconomic , national inter-industry

MEVTV Workshop on Early Tectonic and Volcanic Evolution of Mars

NASA Technical Reports Server (NTRS)

Frey, H. (Editor)

1988-01-01

Although not ignored, the problems of the early tectonic and volcanic evolution of Mars have generally received less attention than those later in the evolution of the planet. Specifically, much attention was devoted to the evolution of the Tharsis region of Mars and to the planet itself at the time following the establishment of this major tectonic and volcanic province. By contrast, little attention was directed at fundamental questions, such as the conditions that led to the development of Tharsis and the cause of the basic fundamental dichotomy of the Martian crust. It was to address these and related questions of the earliest evolution of Mars that a workshop was organized under the auspices of the Mars: Evolution of Volcanism, Tectonism, and Volatiles (MEVTV) Program. Four sessions were held: crustal dichotomy; crustal differentiation/volcanism; Tharsis, Elysium, and Valles Marineris; and ridges and fault tectonics.

Environmental education evaluation: time to reflect, time for change.

PubMed

Crohn, Kara; Birnbaum, Matthew

2010-05-01

Evaluation in environmental education is fairly nascent despite decades-long attention to its importance. In setting the context for future chapters appearing in this special issue of the Journal of Evaluation and Program Planning, attention is devoted to the political circumstances associated with retrenchment in the public sector and increased involvement of citizens in environmental issues in their regions. It further is nested in the context of potential political reforms in a stable market democracy where education is but one strategy that can be bundled with regulations and taxes/subsidies. Additional attention is directed to explaining many of the key evaluation theories--utilization-focused evaluation, evaluative capacity building, and program-theory driven evaluation. The final section of this chapter situates the subsequent chapters of this volume based on the demographic target (youth or adult) as well as connection to a particular evaluation theory. Copyright 2009 Elsevier Ltd. All rights reserved.

Microwave-assisted synthesis of metal oxide/hydroxide composite electrodes for high power supercapacitors - A review

NASA Astrophysics Data System (ADS)

Faraji, Soheila; Ani, Farid Nasir

2014-10-01

Electrochemical capacitors (ECs), also known as pseudocapacitors or supercapacitors (SCs), is receiving great attention for its potential applications in electric and hybrid electric vehicles because of their ability to store energy, alongside with the advantage of delivering the stored energy much more rapidly than batteries, namely power density. To become primary devices for power supply, supercapacitors must be developed further to improve their ability to deliver high energy and power simultaneously. In this concern, a lot of effort is devoted to the investigation of pseudocapacitive transition-metal-based oxides/hydroxides such as ruthenium oxide, manganese oxide, cobalt oxide, nickel oxide, cobalt hydroxide, nickel hydroxide, and mixed metal oxides/hydroxides such as nickel cobaltite and nickel-cobalt oxy-hydroxides. This is mainly due to the fact that they can produce much higher specific capacitances than typical carbon-based electric double-layer capacitors and electronically conducting polymers. This review presents supercapacitor performance data of metal oxide thin film electrodes by microwave-assisted as an inexpensive, quick and versatile technique. Supercapacitors have established the specific capacitance (Cs) principles, therefore, it is likely that metal oxide films will continue to play a major role in supercapacitor technology and are expected to considerably increase the capabilities of these devices in near future.

High-Throughput Sequencing of 16S rRNA Gene Amplicons: Effects of Extraction Procedure, Primer Length and Annealing Temperature

PubMed Central

Sergeant, Martin J.; Constantinidou, Chrystala; Cogan, Tristan; Penn, Charles W.; Pallen, Mark J.

2012-01-01

The analysis of 16S-rDNA sequences to assess the bacterial community composition of a sample is a widely used technique that has increased with the advent of high throughput sequencing. Although considerable effort has been devoted to identifying the most informative region of the 16S gene and the optimal informatics procedures to process the data, little attention has been paid to the PCR step, in particular annealing temperature and primer length. To address this, amplicons derived from 16S-rDNA were generated from chicken caecal content DNA using different annealing temperatures, primers and different DNA extraction procedures. The amplicons were pyrosequenced to determine the optimal protocols for capture of maximum bacterial diversity from a chicken caecal sample. Even at very low annealing temperatures there was little effect on the community structure, although the abundance of some OTUs such as Bifidobacterium increased. Using shorter primers did not reveal any novel OTUs but did change the community profile obtained. Mechanical disruption of the sample by bead beating had a significant effect on the results obtained, as did repeated freezing and thawing. In conclusion, existing primers and standard annealing temperatures captured as much diversity as lower annealing temperatures and shorter primers. PMID:22666455

Assessing environmental attitudes and concerns about a contaminated site in a densely populated suburban environment.

PubMed

Burger, Joanna

2005-02-01

Considerable attention has been devoted to the concerns and perceptions of people residing around contaminated facilities, both brownfields in urban areas and others located in remote and lightly populated areas. This paper examines the concerns of recreationists and sportsmen residing near the Department of Energy's (DOE) Brookhaven National Laboratory, in central Long Island, one of the most densely populated regions in the United States, where tourism is of prime importance. On an open-ended question, the greatest concern was pollution, followed by environmental health as a global concern, and human health as a concern for Brookhaven. Accidents/spills, loss of public health, and loss of ecological health were rated highest among a list of concerns, and change in property values was rated lowest. When asked to rank seven concerns, protecting human health was ranked the highest, and economic interests were ranked the lowest. For future land use at Brookhaven, recreational uses were rated the highest, while building houses and factories, and storage of nuclear material were rated the lowest. These data can be used by managers, decision and policy makers, and the general public to assess and manage local and regional environmental concerns and to consider future land uses for decommissioned lands, such as those at Brookhaven.

Theorizing Foreshadowed Death Narratives: Examining the Impact of Character Death on Narrative Processing and Skin Self-Exam Intentions.

PubMed

Jensen, Jakob D; Yale, Robert N; Krakow, Melinda; John, Kevin K; King, Andy J

2017-01-01

Narratives are common in health campaigns and interventions, with many depicting individuals battling a particular illness or disease. Past research has focused primarily on the form and effects of survivor stories, but considerably less attention has been devoted to stories in which 1 or more of the central characters passes away. The goal of the current study was to compare the relative persuasive impact of survivor and death narratives in influencing skin prevention behaviors and to test narrative mediators that might explicate underlying mechanisms of effect. To that end, adults (N = 635, M age = 32.43 [SD = 11.23]) were randomly assigned to 1 of 6 narrative intervention conditions in an online message experiment. Participants read 1 of 2 stories about a person with melanoma (Rusty or Diane) that was manipulated as a narrative depicting the survival, death, or foreshadowed death of the main character. Foreshadowed death narratives increased intentions to perform a skin self-exam (SSE), a relationship that was mediated by narrative transportation and perceived SSE benefits. The results support the central postulate of narrative transportation theory and the utility of using foreshadowed death narratives in communication-based interventions designed to increase SSE frequency.

Theorizing Foreshadowed Death Narratives: Examining the Impact of Character Death on Narrative Processing and Skin Self-Exam Intentions

PubMed Central

JENSEN, JAKOB D.; YALE, ROBERT N.; KRAKOW, MELINDA; JOHN, KEVIN K.; KING, ANDY J.

2017-01-01

Narratives are common in health campaigns and interventions, with many depicting individuals battling a particular illness or disease. Past research has focused primarily on the form and effects of survivor stories, but considerably less attention has been devoted to stories in which 1 or more of the central characters passes away. The goal of the current study was to compare the relative persuasive impact of survivor and death narratives in influencing skin prevention behaviors and to test narrative mediators that might explicate underlying mechanisms of effect. To that end, adults (N = 635, M age = 32.43 [SD = 11.23]) were randomly assigned to 1 of 6 narrative intervention conditions in an online message experiment. Participants read 1 of 2 stories about a person with melanoma (Rusty or Diane) that was manipulated as a narrative depicting the survival, death, or foreshadowed death of the main character. Foreshadowed death narratives increased intentions to perform a skin self-exam (SSE), a relationship that was mediated by narrative transportation and perceived SSE benefits. The results support the central postulate of narrative transportation theory and the utility of using foreshadowed death narratives in communication-based interventions designed to increase SSE frequency. PMID:28060585

High-throughput sequencing of 16S rRNA gene amplicons: effects of extraction procedure, primer length and annealing temperature.

PubMed

Sergeant, Martin J; Constantinidou, Chrystala; Cogan, Tristan; Penn, Charles W; Pallen, Mark J

2012-01-01

The analysis of 16S-rDNA sequences to assess the bacterial community composition of a sample is a widely used technique that has increased with the advent of high throughput sequencing. Although considerable effort has been devoted to identifying the most informative region of the 16S gene and the optimal informatics procedures to process the data, little attention has been paid to the PCR step, in particular annealing temperature and primer length. To address this, amplicons derived from 16S-rDNA were generated from chicken caecal content DNA using different annealing temperatures, primers and different DNA extraction procedures. The amplicons were pyrosequenced to determine the optimal protocols for capture of maximum bacterial diversity from a chicken caecal sample. Even at very low annealing temperatures there was little effect on the community structure, although the abundance of some OTUs such as Bifidobacterium increased. Using shorter primers did not reveal any novel OTUs but did change the community profile obtained. Mechanical disruption of the sample by bead beating had a significant effect on the results obtained, as did repeated freezing and thawing. In conclusion, existing primers and standard annealing temperatures captured as much diversity as lower annealing temperatures and shorter primers.

Adherence to cognitive behavioral therapy for insomnia: a systematic review.

PubMed

Matthews, Ellyn E; Arnedt, J Todd; McCarthy, Michaela S; Cuddihy, Leisha J; Aloia, Mark S

2013-12-01

Chronic insomnia is a significant public health problem worldwide, and insomnia has considerable personal and social costs associated with serious health conditions, greater healthcare utilization, work absenteeism, and motor-vehicle accidents. Cognitive behavioral therapy for insomnia (CBTI) is an efficacious treatment, yet attrition and suboptimal adherence may diminish its impact. Despite the increasing use of CBTI, surprisingly little attention has been devoted to understanding the role of adherence. This review describes a comprehensive literature search of adherence to CBTI. The search revealed 15 studies that evaluated adherence to CBTI in adults using valid and reliable measures of sleep, and measure of adherence other than study withdrawals. The primary purposes of this review were to 1) synthesize current study characteristics, methodology, adherence rates, contributing factors, and impact on outcomes, 2) discuss measurement issues, and 3) identify future practice and research directions that may lead to improved outcomes. Strong patterns and inconsistencies were identified among the studies, which complicate an evaluation of the role of adherence as a factor and outcome of CBTI success. The importance of standardized adherence and outcome measures is discussed. In light of the importance of adherence to behavior change, this systematic review may better inform future intervention efforts. Copyright © 2013 Elsevier Ltd. All rights reserved.

System design considerations for a production-grade, ESR-based x-ray lithography beamline

NASA Astrophysics Data System (ADS)

Kovacs, Stephen; Melore, Dan; Cerrina, Franco; Cole, Richard K.

1991-08-01

As electron storage ring (ESR) based x-ray lithography technology moves closer to becoming an industrial reality, more and more attention has been devoted to studying problem areas related to its application in the production environment. A principle component is the x-ray lithography beamline (XLBL) and its associated design requirements. XLBL, an x-ray radiation transport system, is one of the three major subunits in the ESR-based x-ray lithography system (XLS) and has a pivotal role in defining performance characteristics of the entire XLS. Its major functions are to transport the synchrotron orbital radiation (SOR) to the lithography target area with defined efficiency and to modify SOR into the spectral distribution defined by the lithography process window. These functions must be performed reliably in order to satisfy the required high production rate and ensure 0.25 micron resolution lithography conditions. In this paper the authors attempt to answer some specific questions that arise during the formulation of an XLBL system design. Three principle issues that are essential to formulating a design are (1) Radiation transport efficiency, (2) X-ray optical configurations in the beamline, (3) Beamline system configurations. Some practical solutions to thee problem areas are presented, and the effects of these parameters on lithography production rate are examined.

European Guidelines for Quality Assurance in Cervical Cancer Screening. Second edition--summary document.

PubMed

Arbyn, M; Anttila, A; Jordan, J; Ronco, G; Schenck, U; Segnan, N; Wiener, H; Herbert, A; von Karsa, L

2010-03-01

European Guidelines for Quality Assurance in Cervical Cancer Screening have been initiated in the Europe Against Cancer Programme. The first edition established the principles of organised population-based screening and stimulated numerous pilot projects. The second multidisciplinary edition was published in 2008 and comprises approximately 250 pages divided into seven chapters prepared by 48 authors and contributors. Considerable attention has been devoted to organised, population-based programme policies which minimise adverse effects and maximise benefits of screening. It is hoped that this expanded guidelines edition will have a greater impact on countries in which screening programmes are still lacking and in which opportunistic screening has been preferred in the past. Other methodological aspects such as future prospects of human papillomavirus testing and vaccination in cervical cancer control have also been examined in the second edition; recommendations for integration of the latter technologies into European guidelines are currently under development in a related project supported by the European Union Health Programme. An overview of the fundamental points and principles that should support any quality-assured screening programme and key performance indicators are presented here in a summary document of the second guidelines edition in order to make these principles and standards known to a wider scientific community.

Integral parameters for characterizing water, energy, and aeration properties of soilless plant growth media

NASA Astrophysics Data System (ADS)

Chamindu Deepagoda, T. K. K.; Chen Lopez, Jose Choc; Møldrup, Per; de Jonge, Lis Wollesen; Tuller, Markus

2013-10-01

Over the last decade there has been a significant shift in global agricultural practice. Because the rapid increase of human population poses unprecedented challenges to production of an adequate and economically feasible food supply for undernourished populations, soilless greenhouse production systems are regaining increased worldwide attention. The optimal control of water availability and aeration is an essential prerequisite to successfully operate plant growth systems with soilless substrates such as aggregated foamed glass, perlite, rockwool, coconut coir, or mixtures thereof. While there are considerable empirical and theoretical efforts devoted to characterize water retention and aeration substrate properties, a holistic, physically-based approach considering water retention and aeration concurrently is lacking. In this study, the previously developed concept of integral water storage and energy was expanded to dual-porosity substrates and an analog integral oxygen diffusivity parameter was introduced to simultaneously characterize aeration properties of four common soilless greenhouse growth media. Integral parameters were derived for greenhouse crops in general, as well as for tomatoes. The integral approach provided important insights for irrigation management and for potential optimization of substrate properties. Furthermore, an observed relationship between the integral parameters for water availability and oxygen diffusivity can be potentially applied for the design of advanced irrigation and management strategies to ensure stress-free growth conditions, while conserving water resources.

What research ethics should learn from genomics and society research: lessons from the ELSI Congress of 2011.

PubMed

Henderson, Gail E; Juengst, Eric T; King, Nancy M P; Kuczynski, Kristine; Michie, Marsha

2012-01-01

Research on the ethical, legal, and social implications (ELSI) of human genomics has devoted significant attention to the research ethics issues that arise from genomic science as it moves through the translational process. Given the prominence of these issues in today's debates over the state of research ethics overall, these studies are well positioned to contribute important data, contextual considerations, and policy arguments to the wider research ethics community's deliberations, and ultimately to develop a research ethics that can help guide biomedicine's future. In this essay, we illustrate this thesis through an analytic summary of the research presented at the 2011 ELSI Congress, an international meeting of genomics and society researchers. We identify three pivotal factors currently shaping genomic research, its clinical translation, and its societal implications: (1) the increasingly blurred boundary between research and treatment; (2) uncertainty--that is, the indefinite, indeterminate, and incomplete nature of much genomic information and the challenges that arise from making meaning and use of it; and (3) the role of negotiations between multiple scientific and non-scientific stakeholders in setting the priorities for and direction of biomedical research, as it is increasingly conducted "in the public square." © 2012 American Society of Law, Medicine & Ethics, Inc.

Space technologies for short-term earthquake warning

NASA Astrophysics Data System (ADS)

Pulinets, S.

Recent theoretical and experimental studies explicitly demonstrated the ability of space technologies to identify and monitor the specific variations at near-earth space plasma, atmosphere and ground surface associated with approaching severe earthquakes (named as earthquake precursors) appearing several days (from 1 to 5) before the seismic shock over the seismically active areas. Several countries and private companies are in the stage of preparation (or already launched) the dedicated spacecrafts for monitoring of the earthquake precursors from space and for short-term earthquake prediction. The present paper intends to outline the optimal algorithm for creation of the space-borne system for the earthquake precursors monitoring and for short-term earthquake prediction. It takes into account the following considerations: Selection of the precursors in the terms of priority, taking into account their statistical and physical parameters Configuration of the spacecraft payload Configuration of the satellite constellation (orbit selection, satellite distribution, operation schedule) Proposal of different options (cheap microsatellite or comprehensive multisatellite constellation) Taking into account that the most promising are the ionospheric precursors of earthquakes, the special attention will be devoted to the radiophysical techniques of the ionosphere monitoring. The advantages and disadvantages of such technologies as vertical sounding, in-situ probes, ionosphere tomography, GPS TEC and GPS MET technologies will be considered.

The pedagogical implications of Maxwellian electromagnetic models: a case study from Victorian-Era physics.

PubMed

Bullock, Shawn Michael

2014-01-01

In the late Victorian Era, a group of British physicists devoted their time to interpreting and extending the work of James Clerk Maxwell. There has been considerable discussion about the ways in which these "Maxwellian" physicists used mechanical models by in the for research purposes; less attention has been paid to the relevance of their mechanical models for pedagogical purposes. Drawing from educational research literature, I begin from the premise that understanding a scientist's self-identity in its historical context is crucial to understanding how she or he enacts particular pedagogical approaches. I aim to extend Bruce Hunt's seminal work on the Maxwellians by providing a pedagogical analysis of one of Sir Oliver Lodge's lectures. In so doing, I claim that Lodge drew on his identity as a Maxwellian as an organizing framework for his lecture and that he attempted to engage his audience in Maxwellian thought by exposing them to many mechanical models. I conclude that Lodge's self-concept as a teacher and his apparent broad appeal as a public educationist were deeply embedded in his life history as a member of the Maxwellians. Sir Oliver Lodge's identities as a Maxwellian and a pedagogue are inextricably linked. Copyright © 2014 Elsevier Ltd. All rights reserved.

Chimpanzees' context-dependent tool use provides evidence for separable representations of hand and tool even during active use within peripersonal space.

PubMed

Povinelli, Daniel J; Reaux, James E; Frey, Scott H

2010-01-01

Considerable attention has been devoted to behaviors in which tools are used to perform actions in extrapersonal space by extending the reach. Evidence suggests that these behaviors result in an expansion of the body schema and peripersonal space. However, humans often use tools to perform tasks within peripersonal space that cannot be accomplished with the hands. In some of these instances (e.g., cooking), a tool is used as a substitute for the hand in order to pursue actions that would otherwise be hazardous. These behaviors suggest that even during the active use of tools, we maintain non-isomorphic representations that distinguish between our hands and handheld tools. Understanding whether such representations are a human specialization is of potentially great relevance to understand the evolutionary history of technological behaviors including the controlled use of fire. We tested six captive adult chimpanzees to determine whether they would elect to use a tool, rather than their hands, when acting in potentially hazardous vs. nonhazardous circumstances located within reach. Their behavior suggests that, like humans, chimpanzees represent the distinction between the hand vs. tool even during active use. We discuss the implications of this evidence for our understanding of tool use and its evolution.

Editorial: 3rd Special Issue on behavior change, health, and health disparities.

PubMed

Higgins, Stephen T

2016-11-01

This Special Issue of Preventive Medicine (PM) is the 3rd that we have organized on behavior change, health, and health disparities. This is a topic of critical importance to improving U.S. population health. There is broad scientific consensus that personal behaviors such as cigarette smoking, other substance abuse, and physical inactivity/obesity are among the most important modifiable causes of chronic disease and its adverse impacts on population health. Hence, effectively promoting health-related behavior change needs to be a key component of health care research and policy. There is also broad recognition that while these problems extend throughout the population, they disproportionately impact economically disadvantaged populations and other vulnerable populations and represent a major contributor to health disparities. Thus, behavior change represents an essential step in curtailing health disparities, which receives special attention in this 3rd Special Issue. We also devote considerable space to the longstanding challenges of reducing cigarette smoking and use of other tobacco and nicotine delivery products in vulnerable populations, obesity, and for the first time food insecurity. Across each of these topics we include contributions from highly accomplished policymakers and scientists to acquaint readers with recent accomplishments as well as remaining knowledge gaps and challenges. Copyright © 2016 Elsevier Inc. All rights reserved.

Mycotoxin food and feed regulation and the specific case of ochratoxin A: a review of the worldwide status.

PubMed

Duarte, S C; Lino, C M; Pena, A

2010-10-01

Mycotoxins are naturally occurring contaminants whose presence in food- and feedstuffs cannot be completely avoided. The safety and economic impact arising from the commercialization of mycotoxin-contaminated food and feed supply chain is considerable and acknowledged. To protect consumers from mycotoxin-derived health risks, many countries have adopted regulations or guidelines to limit exposure. Similar to regulation for other mycotoxins, the regulatory status of ochratoxin A (OTA) lacks consensus. Although this was one of the first fungal toxins to be subjected to compliance control due to its toxic properties, the conflict between the prime objective of consumer health safeguard and the economic interests of producers and traders remains. One of the key challenges facing policymakers is to balance these conflicting demands and reach consensual regulatory actions or limits. The noteworthy transboundary implications are recognized, both in the case of absence as the unsubstantiated tightening of regulatory limits. This paper scrutinizes the rationales and implications of mycotoxin regulation, with special attention devoted to OTA. In view of the ongoing debate concerning this complex issue, a review of the arguments and suggested strategies proposed by different parties is also made. The specific case of OTA regulation in food and feed is updated and analysed at a European Union and global level.

Dental Considerations in Pregnancy-A Critical Review on the Oral Care

PubMed Central

VT, Hemalatha; T, Manigandan; T, Sarumathi; Nisha V, Aarthi; A, Amudhan

2013-01-01

Pregnancy is a dynamic physiological state which is evidenced by several transient changes. These can develop as various physical signs and symptoms that can affect the patients health, perceptions and interactions with others in the environment. The patients may not always understand the relevance of the adaptations of their bodies to the health of their foetuses. A gestational woman requires various levels of support throughout this time, such as medical monitoring or intervention, preventive care and physical and emotional assistance. The dental management of pregnant patients requires special attention. Dentists, for example, may delay certain elective procedures so that they coincide with the periods of pregnancy which are devoted to maturation versus organogenesis. At other times, the dental care professionals need to alter their normal pharmacological armamentarium to address the patients’ needs versus the foetal demands. Applying the basics of preventive dentistry at the primary level will broaden the scope of the prenatal care. Dentists should encourage all the patients of the childbearing ages to seek oral health counseling and examinations as soon as they learn that they are pregnant. This article has reviewed some of the physiologic changes and the oral pathologies which are associated with pregnancy, and how these alterations can affect the dental care of the patient. PMID:23814753

Dental considerations in pregnancy-a critical review on the oral care.

PubMed

Vt, Hemalatha; T, Manigandan; T, Sarumathi; Nisha V, Aarthi; A, Amudhan

2013-05-01

Pregnancy is a dynamic physiological state which is evidenced by several transient changes. These can develop as various physical signs and symptoms that can affect the patients health, perceptions and interactions with others in the environment. The patients may not always understand the relevance of the adaptations of their bodies to the health of their foetuses. A gestational woman requires various levels of support throughout this time, such as medical monitoring or intervention, preventive care and physical and emotional assistance. The dental management of pregnant patients requires special attention. Dentists, for example, may delay certain elective procedures so that they coincide with the periods of pregnancy which are devoted to maturation versus organogenesis. At other times, the dental care professionals need to alter their normal pharmacological armamentarium to address the patients' needs versus the foetal demands. Applying the basics of preventive dentistry at the primary level will broaden the scope of the prenatal care. Dentists should encourage all the patients of the childbearing ages to seek oral health counseling and examinations as soon as they learn that they are pregnant. This article has reviewed some of the physiologic changes and the oral pathologies which are associated with pregnancy, and how these alterations can affect the dental care of the patient.

USSR Report, Military Affairs

DTIC Science & Technology

1986-01-10

Forces? ■ ;■„..:■’ [Kurkotkin] First, let" us define what we mean by the troops’ daily life [byt] today. Looking at it superficially, it is only a sphere...of problems. In some dis- tricts, groups of forces, and fleets too much attention was devoted to those garrisons which were represented in the...Any interval between fighting, if, of course, the opportunity arose, was used to give people a bath. Not for nothing did the poet Aleksandr

Translations on Eastern Europe, Political, Sociological, and Military Affairs, Number 1435

DTIC Science & Technology

1977-08-23

4 . K. Marx/F. Engels, "Werke" (Works), Vol 4 , Berlin, 1959, p 479. 5 . Cf. PRAVDA, Moscow, 9 October 1976. 6. Ibid. 45 7... live there, i.a., in the 35,000 newly built apartments. The new district is divided into three viable housing areas, with the main center being...biggest tenement houses of the world. 4 ®) In addition to new construction of housing, great attention must therefore be devoted to the

The National Security Mission of the U.S. Border Patrol: A Question of Collective Bargaining Exemption

DTIC Science & Technology

2015-06-12

the girls over the course of these several months so that I could devote time and attention to this effort. Your patience and love are amazing...an examination of the relationship between traditional law enforcement agencies and unionization will help the reader to better understand why the...foundation for later analysis. Before an examination of the relationship between unions and law enforcement can occur, a brief history of law

Conjugated Organosilicon Materials for Organic Electronics and Photonics

NASA Astrophysics Data System (ADS)

Ponomarenko, Sergei A.; Kirchmeyer, Stephan

In this chapter different types of conjugated organosilicon materials possessing luminescent and/or semiconducting properties will be described. Such macromolecules have various topologies and molecular structures: linear, branched and hyperbranched oligomers, polymers, and dendrimers. Specific synthetic approaches to access these structures will be discussed. Special attention is devoted to the role of silicon in these structures and its influence on their optical and electrical properties, leading to their potential application in the emerging areas of organic and hybrid electronics.

Representation of magnetic fields in space. [special attention to Geomagnetic fields and Magnetospheric models

NASA Technical Reports Server (NTRS)

Stern, D. P.

1976-01-01

Several mathematical methods which are available for the description of magnetic fields in space are reviewed. Examples of the application of such methods are given, with particular emphasis on work related to the geomagnetic field, and their individual properties and associated problems are described. The methods are grouped in five main classes: (1) methods based on the current density, (2) methods using the scalar magnetic potential, (3) toroidal and poloidal components of the field and spherical vector harmonics, (4) Euler potentials, and (5) local expansions of the field near a given reference point. Special attention is devoted to models of the magnetosphere, to the uniqueness of the scalar potential as derived from observed data, and to the L parameter.

The complex interaction between anxiety and cognition: insight from spatial and verbal working memory

PubMed Central

Vytal, Katherine E.; Cornwell, Brian R.; Letkiewicz, Allison M.; Arkin, Nicole E.; Grillon, Christian

2013-01-01

Anxiety can be distracting, disruptive, and incapacitating. Despite problems with empirical replication of this phenomenon, one fruitful avenue of study has emerged from working memory (WM) experiments where a translational method of anxiety induction (risk of shock) has been shown to disrupt spatial and verbal WM performance. Performance declines when resources (e.g., spatial attention, executive function) devoted to goal-directed behaviors are consumed by anxiety. Importantly, it has been shown that anxiety-related impairments in verbal WM depend on task difficulty, suggesting that cognitive load may be an important consideration in the interaction between anxiety and cognition. Here we use both spatial and verbal WM paradigms to probe the effect of cognitive load on anxiety-induced WM impairment across task modality. Subjects performed a series of spatial and verbal n-back tasks of increasing difficulty (1, 2, and 3-back) while they were safe or at risk for shock. Startle reflex was used to probe anxiety. Results demonstrate that induced-anxiety differentially impacts verbal and spatial WM, such that low and medium-load verbal WM is more susceptible to anxiety-related disruption relative to high-load, and spatial WM is disrupted regardless of task difficulty. Anxiety impacts both verbal and spatial processes, as described by correlations between anxiety and performance impairment, albeit the effect on spatial WM is consistent across load. Demanding WM tasks may exert top-down control over higher-order cortical resources engaged by anxious apprehension, however high-load spatial WM may continue to experience additional competition from anxiety-related changes in spatial attention, resulting in impaired performance. By describing this disruption across task modalities, these findings inform current theories of emotion–cognition interactions and may facilitate development of clinical interventions that seek to target cognitive impairments associated with anxiety. PMID:23542914

Risk-based Analysis of Construction Accidents in Iran During 2007-2011-Meta Analyze Study.

PubMed

Amiri, Mehran; Ardeshir, Abdollah; Fazel Zarandi, Mohammad Hossein

2014-04-01

The present study aimed to investigate the characteristics of occupational accidents and frequency and severity of work related accidents in the construction industry among Iranian insured workers during the years 20072011. The Iranian Social Security Organization (ISSO) accident database containing 21,864 cases between the years 2007-2011 was applied in this study. In the next step, Total Accident Rate (TRA), Total Severity Index (TSI), and Risk Factor (RF) were defined. The core of this work is devoted to analyzing the data from different perspectives such as age of workers, occupation and construction phase, day of the week, time of the day, seasonal analysis, regional considerations, type of accident, and body parts affected. Workers between 15-19 years old (TAR=13.4%) are almost six times more exposed to risk of accident than the average of all ages (TAR=2.51%). Laborers and structural workers (TAR=66.6%) and those working at heights (TAR=47.2%) experience more accidents than other groups of workers. Moreover, older workers over 65 years old (TSI=1.97%> average TSI=1.60%), work supervisors (TSI=12.20% >average TSI=9.09%), and night shift workers (TSI=1.89% >average TSI=1.47%) are more prone to severe accidents. It is recommended that laborers, young workers, weekend and night shift workers be supervised more carefully in the workplace. Use of Personal Protective Equipment (PPE) should be compulsory in working environments, and special attention should be undertaken to people working outdoors and at heights. It is also suggested that policymakers pay more attention to the improvement of safety conditions in deprived and cold western regions.

Risk-based Analysis of Construction Accidents in Iran During 2007-2011-Meta Analyze Study

PubMed Central

AMIRI, Mehran; ARDESHIR, Abdollah; FAZEL ZARANDI, Mohammad Hossein

2014-01-01

Abstract Background The present study aimed to investigate the characteristics of occupational accidents and frequency and severity of work related accidents in the construction industry among Iranian insured workers during the years 20072011. Methods The Iranian Social Security Organization (ISSO) accident database containing 21,864 cases between the years 2007-2011 was applied in this study. In the next step, Total Accident Rate (TRA), Total Severity Index (TSI), and Risk Factor (RF) were defined. The core of this work is devoted to analyzing the data from different perspectives such as age of workers, occupation and construction phase, day of the week, time of the day, seasonal analysis, regional considerations, type of accident, and body parts affected. Results Workers between 15-19 years old (TAR=13.4%) are almost six times more exposed to risk of accident than the average of all ages (TAR=2.51%). Laborers and structural workers (TAR=66.6%) and those working at heights (TAR=47.2%) experience more accidents than other groups of workers. Moreover, older workers over 65 years old (TSI=1.97%> average TSI=1.60%), work supervisors (TSI=12.20% >average TSI=9.09%), and night shift workers (TSI=1.89% >average TSI=1.47%) are more prone to severe accidents. Conclusion It is recommended that laborers, young workers, weekend and night shift workers be supervised more carefully in the workplace. Use of Personal Protective Equipment (PPE) should be compulsory in working environments, and special attention should be undertaken to people working outdoors and at heights. It is also suggested that policymakers pay more attention to the improvement of safety conditions in deprived and cold western regions. PMID:26005662

Neural mechanisms of selective attention in the somatosensory system.

PubMed

Gomez-Ramirez, Manuel; Hysaj, Kristjana; Niebur, Ernst

2016-09-01

Selective attention allows organisms to extract behaviorally relevant information while ignoring distracting stimuli that compete for the limited resources of their central nervous systems. Attention is highly flexible, and it can be harnessed to select information based on sensory modality, within-modality feature(s), spatial location, object identity, and/or temporal properties. In this review, we discuss the body of work devoted to understanding mechanisms of selective attention in the somatosensory system. In particular, we describe the effects of attention on tactile behavior and corresponding neural activity in somatosensory cortex. Our focus is on neural mechanisms that select tactile stimuli based on their location on the body (somatotopic-based attention) or their sensory feature (feature-based attention). We highlight parallels between selection mechanisms in touch and other sensory systems and discuss several putative neural coding schemes employed by cortical populations to signal the behavioral relevance of sensory inputs. Specifically, we contrast the advantages and disadvantages of using a gain vs. spike-spike correlation code for representing attended sensory stimuli. We favor a neural network model of tactile attention that is composed of frontal, parietal, and subcortical areas that controls somatosensory cells encoding the relevant stimulus features to enable preferential processing throughout the somatosensory hierarchy. Our review is based on data from noninvasive electrophysiological and imaging data in humans as well as single-unit recordings in nonhuman primates. Copyright © 2016 the American Physiological Society.

Neural mechanisms of selective attention in the somatosensory system

PubMed Central

Hysaj, Kristjana; Niebur, Ernst

2016-01-01

Selective attention allows organisms to extract behaviorally relevant information while ignoring distracting stimuli that compete for the limited resources of their central nervous systems. Attention is highly flexible, and it can be harnessed to select information based on sensory modality, within-modality feature(s), spatial location, object identity, and/or temporal properties. In this review, we discuss the body of work devoted to understanding mechanisms of selective attention in the somatosensory system. In particular, we describe the effects of attention on tactile behavior and corresponding neural activity in somatosensory cortex. Our focus is on neural mechanisms that select tactile stimuli based on their location on the body (somatotopic-based attention) or their sensory feature (feature-based attention). We highlight parallels between selection mechanisms in touch and other sensory systems and discuss several putative neural coding schemes employed by cortical populations to signal the behavioral relevance of sensory inputs. Specifically, we contrast the advantages and disadvantages of using a gain vs. spike-spike correlation code for representing attended sensory stimuli. We favor a neural network model of tactile attention that is composed of frontal, parietal, and subcortical areas that controls somatosensory cells encoding the relevant stimulus features to enable preferential processing throughout the somatosensory hierarchy. Our review is based on data from noninvasive electrophysiological and imaging data in humans as well as single-unit recordings in nonhuman primates. PMID:27334956

Smoking improves divided attention in schizophrenia.

PubMed

Ahlers, Eike; Hahn, Eric; Ta, Thi Minh Tam; Goudarzi, Elnaz; Dettling, Michael; Neuhaus, Andres H

2014-10-01

Smoking is highly prevalent in schizophrenia, and there is evidence for beneficial effects on neurocognition. Smoking is therefore hypothesized a self-medication in schizophrenia. Although much effort is devoted to characterize those cognitive domains that potentially benefit from smoking, divided attention has not yet been investigated. The aim of this study was to analyze the interactional effects of diagnosis of schizophrenia and smoking history on divided attention. We investigated behavioral measures of divided attention in a sample of 48 schizophrenic patients and 48 controls (24 current smokers and non-smokers each) carefully matched for age, sex, education, verbal IQ, and smoking status with general linear models. Most important within the scope of this study, significant interactions were found for valid reactions and errors of omission: Performance substantially increased in smoking schizophrenic patients, but not in controls. Further, these interactions were modified by sex, driven by female schizophrenic patients who showed a significant behavioral advantage of smokers over non-smokers, other than male schizophrenic patients or healthy controls who did not express this sex-specific pattern. Results suggest a positive effect of smoking history on divided attention in schizophrenic patients. This study provides first evidence that the complex attention domain of divided attention is improved by smoking, which further substantiates the self-medication hypothesis of smoking in schizophrenia, although this has been shown mainly for sustained and selective attention. Gender-specific effects on cognition need to be further investigated.

In defense of derivations

NASA Astrophysics Data System (ADS)

Mungan, Carl E.

2016-05-01

At the 2015 AAPT Summer Meeting, I presented four derivations of the formula for motional emf. Such physics derivations involve the construction of explanatory frameworks involving diagrams and mathematical models. Although textbooks devote considerable space to such explanations, many teachers and students spend their time on worksheets, end-of-chapter problems, and the like. The book is reduced to a bank of solved (i.e., example) and unsolved (i.e., homework) questions, along with equations in colored boxes that presumably are to be used to answer those questions. Such an approach encourages fragmentation of knowledge, the view that there is only one right answer to a problem with the goal of physics being to find that answer (neatly boxed of course), and the inability to reason about even a slightly different (much less a novel) situation. If we are to develop scientific literacy, significant course time must be devoted to explaining the structure of and support for the models and equations we use.

Phonological similarity effect in complex span task.

PubMed

Camos, Valérie; Mora, Gérôme; Barrouillet, Pierre

2013-01-01

The aim of our study was to test the hypothesis that two systems are involved in verbal working memory; one is specifically dedicated to the maintenance of phonological representations through verbal rehearsal while the other would maintain multimodal representations through attentional refreshing. This theoretical framework predicts that phonologically related phenomena such as the phonological similarity effect (PSE) should occur when the domain-specific system is involved in maintenance, but should disappear when concurrent articulation hinders its use. Impeding maintenance in the domain-general system by a concurrent attentional demand should impair recall performance without affecting PSE. In three experiments, we manipulated the concurrent articulation and the attentional demand induced by the processing component of complex span tasks in which participants had to maintain lists of either similar or dissimilar words. Confirming our predictions, PSE affected recall performance in complex span tasks. Although both the attentional demand and the articulatory requirement of the concurrent task impaired recall, only the induction of an articulatory suppression during maintenance made the PSE disappear. These results suggest a duality in the systems devoted to verbal maintenance in the short term, constraining models of working memory.

Training for a New Weapon System: Proposals for Introducing a New Maritime Patrol Aircraft Weapon System to the Operational Active and Reserve Forces

DTIC Science & Technology

1991-05-20

found that surprising little attention , from the operational perspective, is devoted to training. More often than not the philosophy and direction of... making stages noted above represents a potentially significant dollar savings in manpower costs. Such an automated approach would eliminate a...zresented to illustrate the volume of equipment which must be mastered 5 eacn memoer of the tactical crew. ,Wether drodate iV ever makes it to full scale

Memoria de la XXII Reunion Ordinaria de la Asamblea General de la ANUIES (Report of the 22nd Meeting of the General Assembly of the National Association of Universities and Institutions of Higher Education) (22nd, Manzanillo, Colima, Mexico, October 1986).

ERIC Educational Resources Information Center

Revista de la Educacion Superior, 1986

1986-01-01

This serial issue is entirely devoted to the proceedings of the 1986 meeting of the "Asociacion Nacional de Universidades e Institutos de Ensenanza Superior (ANUIES)." Major attention is given to the "Programa Integral Para el Desarrollo de la Educacion Superior (PROIDES)," i.e. a comprehensive program for the development of…

"I Was Told It Was Going to Be Hard Work but I Wasn't Told It Was Going to Be This Much Work": The Experiences and Aspirations of Undergraduate Science Students

ERIC Educational Resources Information Center

Smith, Emma; Cooke, Sandra

2011-01-01

The recruitment and training of scientists is an area of international concern. Much of the research and policy focus around this issue in the UK has been on how science is taught in schools and in particular on the structure of the school science curriculum. Much less attention has been devoted to the undergraduate student experience and the…

Star counts and visual extinctions in dark nebulae

NASA Technical Reports Server (NTRS)

Dickman, R. L.

1978-01-01

Application of star count techniques to the determination of visual extinctions in compact, fairly high-extinction dark nebulae is discussed. Particular attention is devoted to the determination of visual extinctions for a cloud having a possibly anomalous ratio of total to selective extinction. The techniques discussed are illustrated in application at two colors to four well-known compact dust clouds or Bok globules: Barnard 92, B 133, B 134, and B 335. Minimum masses and lower limits to the central extinction of these objects are presented.

Atomic hydrogen and nitrogen distributions from atmosphere explorer measurements

NASA Technical Reports Server (NTRS)

Breig, Edward L.

1992-01-01

We were selective as to our approach to research activities, and devoted primary attention to two investigations concerning the global behavior of atomic hydrogen in the Earth's upper atmosphere. We derive the thermospheric concentration of H by applying the condition of charge-exchange equilibrium between hydrogen and oxygen atoms and ions to in-situ measurements of F-region composition and temperature from the series of Atmosphere Explorer (AE) aeronomy satellites. Progress and accomplishments on these chosen research projects are summarized.

Teachers' Beliefs about Assessment in an EFL Context in Colombia (Creencias de los profesores acerca de la evaluación en un contexto de inglés como lengua extranjera en Colombia)

ERIC Educational Resources Information Center

Muñoz, Ana Patricia; Palacio, Marcela; Escobar, Liliana

2012-01-01

There is evidence that teachers' beliefs on teaching and learning exert an influence on the way they teach and assess learning, and on what students learn. Therefore, it is central that overt attention is devoted to the perceptions teachers have and how they influence teaching and learning. In this article we describe a study on teachers' beliefs…

Identity-Based Motivation: Constraints and Opportunities in Consumer Research.

PubMed

Shavitt, Sharon; Torelli, Carlos J; Wong, Jimmy

2009-07-01

This commentary underscores the integrative nature of the identity-based motivation model (Oyserman, 2009). We situate the model within existing literatures in psychology and consumer behavior, and illustrate its novel elements with research examples. Special attention is devoted to, 1) how product- and brand-based affordances constrain identity-based motivation processes and, 2) the mindsets and action tendencies that can be triggered by specific cultural identities in pursuit of consumer goals. Future opportunities are suggested for researching the antecedents of product meanings and relevant identities.

Grounded Theory: A practical guide for management, business and market researchers Christina Goulding Grounded Theory: A practical guide for management, business and market researchers Sage Publications No of pages: 186 £18.99 0761966838 0761966838 [Formula: see text].

PubMed

Woods, Leslie

2003-10-01

Much has been written about the grounded theory approach to qualitative research, however the number of books devoted solely to this methodology remains relatively few. Therefore, any new book dedicated to the subject is always likely to attract attention - especially given the increasing popularity of grounded theory in healthcare research.

Hilbert-Schmidt Measure of Pairwise Quantum Discord for Three-Qubit X States

NASA Astrophysics Data System (ADS)

Daoud, M.; Laamara, R. Ahl; Seddik, S.

2015-10-01

The Hilbert-Schmidt distance between a mixed three-qubit state and its closest state is used to quantify the amount of pairwise quantum correlations in a tripartite system. Analytical expressions of geometric quantum discord are derived. A particular attention is devoted to two special classes of three-qubit X states. They include three-qubit states of W, GHZ and Bell type. We also discuss the monogamy property of geometric quantum discord in some mixed three-qubit systems.

Effect of fossil fuels on the parameters of CO2 capture.

PubMed

Nagy, Tibor; Mizsey, Peter

2013-08-06

The carbon dioxide capture is a more and more important issue in the design and operation of boilers and/or power stations because of increasing environmental considerations. Such processes, absorber desorber should be able to cope with flue gases from the use of different fossil primary energy sources, in order to guarantee a flexible, stable, and secure energy supply operation. The changing flue gases have significant influence on the optimal operation of the capture process, that is, where the required heating of the desorber is the minimal. Therefore special considerations are devoted to the proper design and control of such boiler and/or power stations equipped with CO2 capture process.

Thalamic control of human attention driven by memory and learning.

PubMed

de Bourbon-Teles, José; Bentley, Paul; Koshino, Saori; Shah, Kushal; Dutta, Agneish; Malhotra, Paresh; Egner, Tobias; Husain, Masud; Soto, David

2014-05-05

The role of the thalamus in high-level cognition-attention, working memory (WM), rule-based learning, and decision making-remains poorly understood, especially in comparison to that of cortical frontoparietal networks [1-3]. Studies of visual thalamus have revealed important roles for pulvinar and lateral geniculate nucleus in visuospatial perception and attention [4-10] and for mediodorsal thalamus in oculomotor control [11]. Ventrolateral thalamus contains subdivisions devoted to action control as part of a circuit involving the basal ganglia [12, 13] and motor, premotor, and prefrontal cortices [14], whereas anterior thalamus forms a memory network in connection with the hippocampus [15]. This connectivity profile suggests that ventrolateral and anterior thalamus may represent a nexus between mnemonic and control functions, such as action or attentional selection. Here, we characterize the role of thalamus in the interplay between memory and visual attention. We show that ventrolateral lesions impair the influence of WM representations on attentional deployment. A subsequent fMRI study in healthy volunteers demonstrates involvement of ventrolateral and, notably, anterior thalamus in biasing attention through WM contents. To further characterize the memory types used by the thalamus to bias attention, we performed a second fMRI study that involved learning of stimulus-stimulus associations and their retrieval from long-term memory to optimize attention in search. Responses in ventrolateral and anterior thalamic nuclei tracked learning of the predictiveness of these abstract associations and their use in directing attention. These findings demonstrate a key role for human thalamus in higher-level cognition, notably, in mnemonic biasing of attention. Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.

A public service communications satellite user brochure

NASA Technical Reports Server (NTRS)

1977-01-01

The capabilities of a proposed communications satellite that would be devoted to experiments and demonstrations of various public services is described. A Public Service Communications Satellite study was undertaken at the NASA Goddard Space Flight Center (GSFC) to define the problems and opportunities of a renewed NASA role and the form such NASA involvement should take. The concept that has evolved has resulted from careful consideration of experiments that were already undertaken on existing satellites.

Structure and Distribution of Components in the Working Layer Upon Reconditioning of Parts by Electric-Arc Metallization

NASA Astrophysics Data System (ADS)

Skoblo, T. S.; Vlasovets, V. M.; Moroz, V. V.

2001-11-01

Reliable data on the structure of the deposited layer are very important due to the considerable instability of the process of deposition of coatings by the method of electric-arc metallization and the strict requirements for reconditioned crankshafts. The present paper is devoted to the structure of coatings obtained from powder wire based on ferrochrome-aluminum with additional alloying elements introduced into the charge.

Analysis of seismic stability of large-sized tank VST-20000 with software package ANSYS

NASA Astrophysics Data System (ADS)

Tarasenko, A. A.; Chepur, P. V.; Gruchenkova, A. A.

2018-05-01

The work is devoted to the study of seismic stability of vertical steel tank VST-20000 with due consideration of the system response “foundation-tank-liquid”, conducted on the basis of the finite element method, modal analysis and linear spectral theory. The calculations are performed for the tank model with a high degree of detailing of metallic structures: shells, a fixed roof, a bottom, a reinforcing ring.

THE AUXILIARY TREATMENT OF PSYCHOTIC WOMEN—Group Therapy for Their Husbands

PubMed Central

Gordon, Gene; Bowman, Karl M.

1953-01-01

Group therapy for the husbands of hospitalized psychotic women relieved the anxiety and feeling of guilt of the husbands and led to better communication between husband and wife. It was particularly helpful just before and after the wife came home from the hospital. The group meetings saved various members of the hospital staff considerable time which they otherwise would have had to devote to the husbands individually. PMID:13042665

[Spontaneous hypoglycemia].

PubMed

Ellorhaoui, M; Schultze, W

1977-01-15

On the basis of a survey is attempted to describe mode of development, symptomatology, individual forms and the different possibilities of therapy of the spontaneous hypoglycaemias. A particularly broad range was devoted to the cerebral sequelae, since in these cases--according to our experience--on account of simulation of neurologico-psychiatric symptoms at the soonest wrong diagnoses are to be expected. Furthermore, it is attempted to classify the hypoglycemias according to their development, in which cases their incompleteness was evident from the very beginning. The individual forms of appearance are treated according their to significance. Out of the inducible hypoglycaemias a particular attention is devoted to the forms caused by insulin and oral antidiabetics, since these most frequently participate in the development. Finally the author inquires into diagnostic measures for recognition of special forms of hypoglycaemia. In this place the diagnostics of hyperinsulinism conditioned by adenomatosis or tumours of other kinds is of particular importance. Finally conservative and operative possibilities of the therapy of these tumours are discussed,whereby the only recently tested treatment with streptotocin is mentioned.

Intensive video gaming improves encoding speed to visual short-term memory in young male adults.

PubMed

Wilms, Inge L; Petersen, Anders; Vangkilde, Signe

2013-01-01

The purpose of this study was to measure the effect of action video gaming on central elements of visual attention using Bundesen's (1990) Theory of Visual Attention. To examine the cognitive impact of action video gaming, we tested basic functions of visual attention in 42 young male adults. Participants were divided into three groups depending on the amount of time spent playing action video games: non-players (<2h/month, N=12), casual players (4-8h/month, N=10), and experienced players (>15h/month, N=20). All participants were tested in three tasks which tap central functions of visual attention and short-term memory: a test based on the Theory of Visual Attention (TVA), an enumeration test and finally the Attentional Network Test (ANT). The results show that action video gaming does not seem to impact the capacity of visual short-term memory. However, playing action video games does seem to improve the encoding speed of visual information into visual short-term memory and the improvement does seem to depend on the time devoted to gaming. This suggests that intense action video gaming improves basic attentional functioning and that this improvement generalizes into other activities. The implications of these findings for cognitive rehabilitation training are discussed. Copyright © 2012 Elsevier B.V. All rights reserved.

Rehearsal in serial memory for visual-spatial information: evidence from eye movements.

PubMed

Tremblay, Sébastien; Saint-Aubin, Jean; Jalbert, Annie

2006-06-01

It is well established that rote rehearsal plays a key role in serial memory for lists of verbal items. Although a great deal of research has informed us about the nature of verbal rehearsal, much less attention has been devoted to rehearsal in serial memory for visual-spatial information. By using the dot task--a visual-spatial analogue of the classical verbal serial recall task--with delayed recall, performance and eyetracking data were recorded in order to establish whether visual-spatial rehearsal could be evidenced by eye movement. The use of eye movement as a form of rehearsal is detectable (Experiment 1), and it seems to contribute to serial memory performance over and above rehearsal based on shifts of spatial attention (Experiments 1 and 2).

Religious competence as cultural competence

PubMed Central

2012-01-01

Definitions of cultural competence often refer to the need to be aware and attentive to the religious and spiritual needs and orientations of patients. However, the institution of psychiatry maintains an ambivalent attitude to the incorporation of religion and spirituality into psychiatric practice. This is despite the fact that many patients, especially those from underserved and underprivileged minority backgrounds, are devotedly religious and find much solace and support in their religiosity. I use the case of mental health of African Americans as an extended example to support the argument that psychiatric services must become more closely attuned to religious matters. I suggest ways in which this can be achieved. Attention to religion can aid in the development of culturally competent and accessible services, which in turn, may increase engagement and service satisfaction among religious populations. PMID:22421686

An overview of molecular acceptors for organic solar cells

NASA Astrophysics Data System (ADS)

Hudhomme, Piétrick

2013-07-01

Organic solar cells (OSCs) have gained serious attention during the last decade and are now considered as one of the future photovoltaic technologies for low-cost power production. The first dream of attaining 10% of power coefficient efficiency has now become a reality thanks to the development of new materials and an impressive work achieved to understand, control and optimize structure and morphology of the device. But most of the effort devoted to the development of new materials concerned the optimization of the donor material, with less attention for acceptors which to date remain dominated by fullerenes and their derivatives. This short review presents the progress in the use of non-fullerene small molecules and fullerene-based acceptors with the aim of evaluating the challenge for the next generation of acceptors in organic photovoltaics.

Perspectives on Adolescent Alcohol Use and Consideration of Future Consequences: Results from a Qualitative Study

ERIC Educational Resources Information Center

Harvey, Séamus A.; McKay, Michael T.

2017-01-01

Consideration of future consequences (CFC) is described as the attention that individuals pay to the potential outcomes of their behaviour, and how their behaviour is affected as a result of attention to these outcomes. Greater CFC has been associated with less alcohol use, thus indicating its potential utility in health-promotion initiatives. A…

Effects of perceived school well-being and negative emotionality on students' attentional bias for academic stressors.

PubMed

Scrimin, Sara; Moscardino, Ughetta; Altoè, Gianmarco; Mason, Lucia

2016-06-01

Previous research indicates that children can display different attention allocation patterns in response to threat. However, data are lacking on the possible existence of an attentional bias in response to academic stressors, and whether variables related to school well-being (SWB) and students' individual characteristics may influence such attentional patterns. We aimed to investigate whether students show an attentional bias for school-related stressors. We sought to identify groups of students who differ in their perceived SWB, and to test whether they display different attention allocation patterns. We also examined whether negative emotionality moderates the expected association between students' SWB and attentional bias. Eighth-grade students completed a dot-probe detection task to register attentional patterns towards or away from an academic threatening word. SWB in terms of school anxiety, school-based stress, and perceived class climate was also assessed via self-reports. In addition, participants reported on their negative emotionality. The results indicated that students showed an attentional bias towards words describing academic stressors. Cluster analyses allowed the identification of two groups of students with high versus low SWB. Regression analysis indicated that those with low SWB were more likely to show a greater bias and that negative emotionality moderated this relationship. Specifically, within the context of low SWB, students with high negative emotionality were more prone to biased attention towards school-related stressors compared with students with low negative emotionality. The present data indicate a perceptual bias for the detection of academic threats. Within the school practice, teachers should promote SWB and devote specific attention to students with high negative emotionality to reduce a biased allocation of attention in response to school-related stressors. © 2016 The British Psychological Society.

Electrophysiological correlates of implicit valenced self-processing in high vs. low self-esteem individuals.

PubMed

Grundy, John G; Benarroch, Miriam F F; Lebarr, A Nicole; Shedden, Judith M

2015-01-01

We provide the first high-temporal resolution account of the self-esteem implicit association test (IAT; Greenwald & Farnham, 2000) to highlight important similarities and differences between the cognitive processes corresponding to implicit valenced self-processing in high vs. low self-esteem individuals. We divided individuals into high and low self-esteem groups based on the Rosenberg self-esteem scale (Rosenberg, 1965) and administered the self-esteem IAT while recording electroencephalographic data. We show that the P2 captured group (high vs. low self-esteem) differences, the N250 and the late parietal positivity (LPP) captured differences corresponding to category pairing (self/positive vs. self/negative pairing), and the N1, P2, and P300-400 components captured interactions between self-esteem groups and whether the self was paired with positive or negative categories in the IAT. Overall, both high and low self-esteem groups were sensitive to the distinction between positive and negative information in relation to the self (me/negative generally displayed larger event-related potential amplitudes than me/positive), but for high self-esteem individuals, this difference was generally larger, earlier, and most pronounced over left-hemisphere electrodes. These electrophysiological differences may reflect differences in attentional resources devoted to teasing apart these two oppositely valenced associations. High self-esteem individuals appear to devote more automatic (early) attentional resources to strengthen the distinction between positively or negatively valenced information in relation to the self.

Neuroscience and crime.

PubMed

Markowitsch, Hans J

2008-01-01

Jurisprudence will profit considerably from methods and applications of the neurosciences. In fact, it is proposed that the neurosciences will provide unique possibilities and advantages in understanding motivations and causes for staying lawful or for becoming unlawful. Neuroscientific models on brain-behavior interactions have profited considerably from the advent of neuroimaging techniques and genetic analyses. Furthermore, advances in interdisciplinary investigations, which combine conventional psychological and sociological explorations with biological examinations, provide refined insights into the question 'What makes us tick?' (Weiskrantz, 1973, British Journal of Psychology, 64, 511-520). The search for such interactions from the time of the nineteenth century to the present is briefly surveyed and it is concluded that the interdisciplinary approaches within and across neuroscientific fields will lead and have already led to a considerable expansion of our knowledge. The articles in this issue devoted to highlighting the latest neuroscience research related to criminal behavior underline the power of this new approach.

An Interactive Scheduling Method for Railway Rolling Stock Allocation

NASA Astrophysics Data System (ADS)

Otsuki, Tomoshi; Nakajima, Masayoshi; Fuse, Toru; Shimizu, Tadashi; Aisu, Hideyuki; Yasumoto, Takanori; Kaneko, Kenichi; Yokoyama, Nobuyuki

Experts working for railway schedule planners still have to devote considerable time and effort for creating rolling stock allocation plans. In this paper, we propose a semiautomatic planning method for creating these plans. Our scheduler is able to interactively deal with flexible constraint-expression inputs and to output easy-to-understand failure messages. Owing to these useful features, the scheduler can provide results that are comparable to those obtained by experts and are obtained faster than before.

Acyl donors for native chemical ligation.

PubMed

Yan, Bingjia; Shi, Weiwei; Ye, Linzhi; Liu, Lei

2018-04-11

Native chemical ligation (NCL) has become one of the most important methods in chemical syntheses of proteins. Recently, in order to expand its scope, considerable effort has been devoted to tuning the C-terminal acyl donor thioesters used in NCL. This article reviews the recent advances in the design of C-terminal acyl donors, their precursors and surrogates, and highlights some noteworthy progress that may lead the future direction of protein chemical synthesis. Copyright © 2018 Elsevier Ltd. All rights reserved.

Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense.

PubMed

Zannella, Carla; Mosca, Francesco; Mariani, Francesca; Franci, Gianluigi; Folliero, Veronica; Galdiero, Marilena; Tiscar, Pietro Giorgio; Galdiero, Massimiliano

2017-06-17

A variety of bivalve mollusks (phylum Mollusca, class Bivalvia) constitute a prominent commodity in fisheries and aquacultures, but are also crucial in order to preserve our ecosystem's complexity and function. Bivalve mollusks, such as clams, mussels, oysters and scallops, are relevant bred species, and their global farming maintains a high incremental annual growth rate, representing a considerable proportion of the overall fishery activities. Bivalve mollusks are filter feeders; therefore by filtering a great quantity of water, they may bioaccumulate in their tissues a high number of microorganisms that can be considered infectious for humans and higher vertebrates. Moreover, since some pathogens are also able to infect bivalve mollusks, they are a threat for the entire mollusk farming industry. In consideration of the leading role in aquaculture and the growing financial importance of bivalve farming, much interest has been recently devoted to investigate the pathogenesis of infectious diseases of these mollusks in order to be prepared for public health emergencies and to avoid dreadful income losses. Several bacterial and viral pathogens will be described herein. Despite the minor complexity of the organization of the immune system of bivalves, compared to mammalian immune systems, a precise description of the different mechanisms that induce its activation and functioning is still missing. In the present review, a substantial consideration will be devoted in outlining the immune responses of bivalves and their repertoire of immune cells. Finally, we will focus on the description of antimicrobial peptides that have been identified and characterized in bivalve mollusks. Their structural and antimicrobial features are also of great interest for the biotechnology sector as antimicrobial templates to combat the increasing antibiotic-resistance of different pathogenic bacteria that plague the human population all over the world.

Applying the health belief model to examine news coverage regarding steroids in sports by ABC, CBS, and NBC between March 1990 and May 2008.

PubMed

Quick, Brian L

2010-04-01

The investigation described here examined ABC, CBS, and NBC news coverage of steroids in sports between March 1990 and May 2008. Employing a framing analysis guided by the health belief model (HBM), coverage of the barriers and benefits of using steroids is reported. Overall, the trend by these three news affiliates was to emphasize the illegality of using steroids, whereas considerably less coverage was devoted to the health costs, in terms of both severity and susceptibility, of using steroids. Furthermore, of the health costs reported, the specific consequences of steroid use varied considerably. The results are reported across four timeframes: 1990-2008, 1990-1996, 1997-2002, and 2003-2008.

Attention and reach-to-grasp movements in Parkinson's disease.

PubMed

Lu, Cathy; Bharmal, Aamir; Kiss, Zelma H; Suchowersky, Oksana; Haffenden, Angela M

2010-08-01

The role of attention in grasping movements directed at common objects has not been examined in Parkinson's disease (PD), though these movements are critical to activities of daily living. Our primary objective was to determine whether patients with PD demonstrate automaticity in grasping movements directed toward common objects. Automaticity is assumed when tasks can be performed with little or no interference from concurrent tasks. Grasping performance in three patient groups (newly diagnosed, moderate, and advanced/surgically treated PD) on and off of their medication or deep brain stimulation was compared to performance in an age-matched control group. Automaticity was demonstrated by the absence of a decrement in grasping performance when attention was consumed by a concurrent spatial-visualization task. Only the control group and newly diagnosed PD group demonstrated automaticity in their grasping movements. The moderate and advanced PD groups did not demonstrate automaticity. Furthermore, the well-known effects of pharmacotherapy and surgical intervention on movement speed and muscle activation patterns did not appear to reduce the impact of attention-demanding tasks on grasping movements in those with moderate to advanced PD. By the moderate stage of PD, grasping is an attention-demanding process; this change is not ameliorated by dopaminergic or surgical treatments. These findings have important implications for activities of daily living, as devoting attention to the simplest of daily tasks would interfere with complex activities and potentially exacerbate fatigue.

Fundamental Lifetime Mechanisms in Routing Protocols for Wireless Sensor Networks: A Survey and Open Issues

PubMed Central

Eslaminejad, Mohammadreza; Razak, Shukor Abd

2012-01-01

Wireless sensor networks basically consist of low cost sensor nodes which collect data from environment and relay them to a sink, where they will be subsequently processed. Since wireless nodes are severely power-constrained, the major concern is how to conserve the nodes' energy so that network lifetime can be extended significantly. Employing one static sink can rapidly exhaust the energy of sink neighbors. Furthermore, using a non-optimal single path together with a maximum transmission power level may quickly deplete the energy of individual nodes on the route. This all results in unbalanced energy consumption through the sensor field, and hence a negative effect on the network lifetime. In this paper, we present a comprehensive taxonomy of the various mechanisms applied for increasing the network lifetime. These techniques, whether in the routing or cross-layer area, fall within the following types: multi-sink, mobile sink, multi-path, power control and bio-inspired algorithms, depending on the protocol operation. In this taxonomy, special attention has been devoted to the multi-sink, power control and bio-inspired algorithms, which have not yet received much consideration in the literature. Moreover, each class covers a variety of the state-of-the-art protocols, which should provide ideas for potential future works. Finally, we compare these mechanisms and discuss open research issues. PMID:23202008

Flexible and Stretchable Physical Sensor Integrated Platforms for Wearable Human-Activity Monitoringand Personal Healthcare.

PubMed

Trung, Tran Quang; Lee, Nae-Eung

2016-06-01

Flexible and stretchable physical sensors that can measure and quantify electrical signals generated by human activities are attracting a great deal of attention as they have unique characteristics, such as ultrathinness, low modulus, light weight, high flexibility, and stretchability. These flexible and stretchable physical sensors conformally attached on the surface of organs or skin can provide a new opportunity for human-activity monitoring and personal healthcare. Consequently, in recent years there has been considerable research effort devoted to the development of flexible and stretchable physical sensors to fulfill the requirements of future technology, and much progress has been achieved. Here, the most recent developments of flexible and stretchable physical sensors are described, including temperature, pressure, and strain sensors, and flexible and stretchable sensor-integrated platforms. The latest successful examples of flexible and stretchable physical sensors for the detection of temperature, pressure, and strain, as well as their novel structures, technological innovations, and challenges, are reviewed first. In the next section, recent progress regarding sensor-integrated wearable platforms is overviewed in detail. Some of the latest achievements regarding self-powered sensor-integrated wearable platform technologies are also reviewed. Further research direction and challenges are also proposed to develop a fully sensor-integrated wearable platform for monitoring human activity and personal healthcare in the near future. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Risk assessment of antibiotic residues in different water matrices in India: key issues and challenges.

PubMed

Mutiyar, Pravin K; Mittal, Atul K

2014-06-01

Global detection of antibiotic substances in water matrices has considerably increased in the recent past. However, in India research on this issue is limited or generalised in the literature. Risks associated with the presence of antibiotics in the environment can be quantified using a hazard quotient (HQ) approach. Here, HQs were developed using the measured environmental concentration (MEC) approach for antibiotic residues in Indian water matrices previously reported in the literature. In the present study, environmental risk assessment, using the HQ index [HQ = measured environmental concentration (MEC)/predicted no effect concentration (PNEC)] for different antibiotics, was performed according to the guidelines of European Medicine Evaluation Agency (EMEA). MEC and PNEC levels were obtained from the literature. PNEC values were also calculated from EC50 using a safety factor when no PNECs were reported in the literature. HQs were obtained for industrial effluents (HQ = 10(4)) that were greater than any previously reported values. Ciprofloxacin, a fluoroquinolone antibiotic, seemed to present the greatest risk in India. The HQ indices for Indian water matrices were in the following order: industrial effluents > lake water > river water > hospital effluents > treated sewage ≃ groundwater. A very high HQ represents a potential environmental concern for aquatic environments in India and demands that immediate attention be devoted to regulating these compounds, especially in pharmaceutical industrial wastewater.

Environmental fate and exposure models: advances and challenges in 21st century chemical risk assessment.

PubMed

Di Guardo, Antonio; Gouin, Todd; MacLeod, Matthew; Scheringer, Martin

2018-01-24

Environmental fate and exposure models are a powerful means to integrate information on chemicals, their partitioning and degradation behaviour, the environmental scenario and the emissions in order to compile a picture of chemical distribution and fluxes in the multimedia environment. A 1995 pioneering book, resulting from a series of workshops among model developers and users, reported the main advantages and identified needs for research in the field of multimedia fate models. Considerable efforts were devoted to their improvement in the past 25 years and many aspects were refined; notably the inclusion of nanomaterials among the modelled substances, the development of models at different spatial and temporal scales, the estimation of chemical properties and emission data, the incorporation of additional environmental media and processes, the integration of sensitivity and uncertainty analysis in the simulations. However, some challenging issues remain and require research efforts and attention: the need of methods to estimate partition coefficients for polar and ionizable chemical in the environment, a better description of bioavailability in different environments as well as the requirement of injecting more ecological realism in exposure predictions to account for the diversity of ecosystem structures and functions in risk assessment. Finally, to transfer new scientific developments into the realm of regulatory risk assessment, we propose the formation of expert groups that compare, discuss and recommend model modifications and updates and help develop practical tools for risk assessment.

Organoelement chemistry: promising growth areas and challenges

NASA Astrophysics Data System (ADS)

Abakumov, G. A.; Piskunov, A. V.; Cherkasov, V. K.; Fedushkin, I. L.; Ananikov, V. P.; Eremin, D. B.; Gordeev, E. G.; Beletskaya, I. P.; Averin, A. D.; Bochkarev, M. N.; Trifonov, A. A.; Dzhemilev, U. M.; D'yakonov, V. A.; Egorov, M. P.; Vereshchagin, A. N.; Syroeshkin, M. A.; Jouikov, V. V.; Muzafarov, A. M.; Anisimov, A. A.; Arzumanyan, A. V.; Kononevich, Yu N.; Temnikov, M. N.; Sinyashin, O. G.; Budnikova, Yu H.; Burilov, A. R.; Karasik, A. A.; Mironov, V. F.; Storozhenko, P. A.; Shcherbakova, G. I.; Trofimov, B. A.; Amosova, S. V.; Gusarova, N. K.; Potapov, V. A.; Shur, V. B.; Burlakov, V. V.; Bogdanov, V. S.; Andreev, M. V.

2018-05-01

The chemistry of organoelement compounds is now one of the most rapidly developing fields of research, regarding both fundamental science and solution of applied problems. This review covers a variety of classes of organoelement compounds, ranging from molecules with highly labile carbon–element bonds to compounds with stable bonds that form the basis of novel structural materials and demonstrates their role in scientific research and industrial production. The use of Grignard reagents in modern organic synthesis and application of catalytic cyclomagnesiation and cycloalumination reactions for the preparation of difficult-to-access metallacycles are considered. The electron transfer processes in redox-active derivatives of Group 14 elements and the role of radical ions in these processes are discussed. Considerable attention is paid to organometallic compounds, first of all, as catalysts; the dynamic nature of catalysis with these compounds is noted. Unusual strained metallacycles of high thermal stability, zirconacyclocumulenes, which also exhibit catalytic activity, are described. Complexes with redox-active ligands that substantially affect the reactivity of the metal centre and directly participate in reactions with various substrates as well as organometallic compounds of lanthanides are considered. Modern environmentally benign methods for the synthesis of organosilicon compounds and production of unique materials based on them are discussed. Particular Sections are devoted to organophosphorus compounds, including those exhibiting therapeutic properties and possessing unusual optical characteristics, and organic chalcogen compounds, which find use as ligands and biologically active molecules. The bibliography includes 1045 references.

14 April 1895, Ljubljana earthquake - A new, cross-border study

NASA Astrophysics Data System (ADS)

Albini, Paola; Cecić, Ina; Hammerl, Christa

2014-05-01

Though it has been the object of both contemporary and modern investigations, the 14 April 1895, Ljubljana event (Mw ~6, according to the European catalogue SHEEC) is still not fully described in its effects. One manifest reason for this is that being the 1895 earthquake a cross-border event, it affected an area that today pertains to three different countries, Slovenia, Austria, and Italy, as well as accounted for in sources today scattered in different archives and libraries. In addition, the 1895 Ljubljana earthquake was a turning point for many aspects. Imperial Vienna sent help to rebuild the damaged city and its surroundings, and the architects brought modern ideas about urban planning, public hygiene and contemporary design. It was also the beginning of organised seismological observations in Slovenia - macroseismic, right after the earthquake, and instrumental, in 1896. The macroseismic data about this earthquake are plentiful and very well preserved. In this new, cross-border study we intend to re-evaluate the already known as well as the newly collected data sources. Specific attention is devoted to the archival documentation on damage, and to the far-field data, which were not comprehensively taken into account beforehand. As the earthquake was felt in a large part of central and Eastern Europe, a considerable effort is put into collecting and interpreting the coeval sources, written in many different languages.

A Review on the Synthesis and Applications of Mesostructured Transition Metal Phosphates

PubMed Central

Lin, Ronghe; Ding, Yunjie

2013-01-01

Considerable efforts have been devoted to extending the range of the elemental composition of mesoporous materials since the pioneering work of the M41S family of ordered mesoporous silica by Mobil researchers. The synthesis of transition metal-containing mesostructured materials with large surface area and high porosity has drawn great attention for its potential applications in acid and redox catalysis, photocatalysis, proton conducting devices, environmental restoration and so on. Thus, various transition metals-containing mesoporous materials, including transition metal-substituted mesoporous silicates, mesostructured transition metal oxides and transition metal phosphates (TMP), have been documented in the literature. Among these, mesostructured TMP materials are less studied, but possess some unique features, partly because of the easy and facile functionalization of PO4 and/or P–OH groups, rendering them interesting functional materials. This review first introduced the general synthesis strategies for manufacturing mesostructured TMP materials, as well as advantages and disadvantages of the respective method; then, we surveyed the ongoing developments of fabrication and application of the TMP materials in three groups on the basis of their components and application fields. Future perspectives on existing problems related to the present synthesis routes and further modifying of the functional groups for the purpose of tailoring special physical-chemical properties to meet wide application requirements were also provided in the last part. PMID:28809304

The effect of the feeding pattern of complex industrial wastewater on activated sludge characteristics and the chemical and ecotoxicological effluent quality.

PubMed

Caluwé, Michel; Dobbeleers, Thomas; Daens, Dominique; Blust, Ronny; Geuens, Luc; Dries, Jan

2017-04-01

Research has demonstrated that the feeding pattern of synthetic wastewater plays an important role in sludge characteristics during biological wastewater treatment. Although considerable research has been devoted to synthetic wastewater, less attention has been paid to industrial wastewater. In this research, three different feeding strategies were applied during the treatment of tank truck cleaning (TTC) water. This industry produces highly variable wastewaters that are often loaded with hazardous chemicals, which makes them challenging to treat with activated sludge (AS). In this study, it is shown that the feeding pattern has a significant influence on the settling characteristics. Pulse feeding resulted in AS with a sludge volume index (SVI) of 68 ± 15 mL gMLSS -1 . Slowly and continuously fed AS had to contend with unstable SVI values that fluctuated between 100 and 600 mL gMLSS -1 . These fluctuations were clearly caused by the feeding solution. The obtained settling characteristics are being supported by the microscopic analysis, which revealed a clear floc structure for the pulse fed AS. Ecotoxicological effluent assessment with bacteria, Crustacea and algae identified algae as the most sensitive organism for all effluents from all different reactors. Variable algae growth inhibitions were measured between the different reactors. The chemical and ecotoxicological effluent quality was comparable between the reactors.

Apollo Mission Techniques Lunar Orbit Activities - Part 1a

NASA Technical Reports Server (NTRS)

Interbartolo, Michael A.

2009-01-01

This slide presentation reviews the planned sequence of events and the rationale for all lunar missions, and the flight experiences and lessons learned for the lunar orbit activities from a trajectory perspective. Shown are trajectories which include the moon's position at the various stages in the complete trip from launch, to the return and reentry. Included in the presentation are objectives and the sequence of events,for the Apollo 8, and Apollo 10. This is followed by a discussion of Apollo 11, including: the primary mission objective, the sequence of events, and the flight experience. The next mission discussed was Apollo 12. It reviews the objectives, the ground tracking, procedure changes, and the sequence of events. The aborted Apollo 13 mission is reviewed, including the objectives, and the sequence of events. Brief summaries of the flight experiences for Apollo 14-16 are reviewed. The flight sequence of events of Apollo 17 are discussed. In summary each mission consistently performing precision landings required that Apollo lunar orbit activities devote considerable attention to: (1) Improving fidelity of lunar gravity models, (2) Maximizing availability of ground tracking, (3) Minimizing perturbations on the trajectory, (4) Maximizing LM propellant reserves for hover time. Also the use of radial separation maneuvers (1) allows passive re-rendezvous after each rev, but ... (2) sensitive to small dispersions in initial sep direction

Concatenated Coding Using Trellis-Coded Modulation

NASA Technical Reports Server (NTRS)

Thompson, Michael W.

1997-01-01

In the late seventies and early eighties a technique known as Trellis Coded Modulation (TCM) was developed for providing spectrally efficient error correction coding. Instead of adding redundant information in the form of parity bits, redundancy is added at the modulation stage thereby increasing bandwidth efficiency. A digital communications system can be designed to use bandwidth-efficient multilevel/phase modulation such as Amplitude Shift Keying (ASK), Phase Shift Keying (PSK), Differential Phase Shift Keying (DPSK) or Quadrature Amplitude Modulation (QAM). Performance gain can be achieved by increasing the number of signals over the corresponding uncoded system to compensate for the redundancy introduced by the code. A considerable amount of research and development has been devoted toward developing good TCM codes for severely bandlimited applications. More recently, the use of TCM for satellite and deep space communications applications has received increased attention. This report describes the general approach of using a concatenated coding scheme that features TCM and RS coding. Results have indicated that substantial (6-10 dB) performance gains can be achieved with this approach with comparatively little bandwidth expansion. Since all of the bandwidth expansion is due to the RS code we see that TCM based concatenated coding results in roughly 10-50% bandwidth expansion compared to 70-150% expansion for similar concatenated scheme which use convolution code. We stress that combined coding and modulation optimization is important for achieving performance gains while maintaining spectral efficiency.

Metrologically Traceable Determination of the Water Content in Biopolymers: INRiM Activity

NASA Astrophysics Data System (ADS)

Rolle, F.; Beltramino, G.; Fernicola, V.; Sega, M.; Verdoja, A.

2017-03-01

Water content in materials is a key factor affecting many chemical and physical properties. In polymers of biological origin, it influences their stability and mechanical properties as well as their biodegradability. The present work describes the activity carried out at INRiM on the determination of water content in samples of a commercial starch-derived biopolymer widely used in shopping bags (Mater-Bi^{circledR }). Its water content, together with temperature, is the most influencing parameter affecting its biodegradability, because of the considerable impact on the microbial activity which is responsible for the biopolymer degradation in the environment. The main scope of the work was the establishment of a metrologically traceable procedure for the determination of water content by using two electrochemical methods, namely coulometric Karl Fischer (cKF) titration and evolved water vapour (EWV) analysis. The obtained results are presented. The most significant operational parameters were considered, and a particular attention was devoted to the establishment of metrological traceability of the measurement results by using appropriate calibration procedures, calibrated standards and suitable certified reference materials. Sample homogeneity and oven-drying temperature were found to be the most important influence quantities in the whole water content measurement process. The results of the two methods were in agreement within the stated uncertainties. Further development is foreseen for the application of cKF and EWV to other polymers.

Fundamental lifetime mechanisms in routing protocols for wireless sensor networks: a survey and open issues.

PubMed

Eslaminejad, Mohammadreza; Razak, Shukor Abd

2012-10-09

Wireless sensor networks basically consist of low cost sensor nodes which collect data from environment and relay them to a sink, where they will be subsequently processed. Since wireless nodes are severely power-constrained, the major concern is how to conserve the nodes' energy so that network lifetime can be extended significantly. Employing one static sink can rapidly exhaust the energy of sink neighbors. Furthermore, using a non-optimal single path together with a maximum transmission power level may quickly deplete the energy of individual nodes on the route. This all results in unbalanced energy consumption through the sensor field, and hence a negative effect on the network lifetime. In this paper, we present a comprehensive taxonomy of the various mechanisms applied for increasing the network lifetime. These techniques, whether in the routing or cross-layer area, fall within the following types: multi-sink, mobile sink, multi-path, power control and bio-inspired algorithms, depending on the protocol operation. In this taxonomy, special attention has been devoted to the multi-sink, power control and bio-inspired algorithms, which have not yet received much consideration in the literature. Moreover, each class covers a variety of the state-of-the-art protocols, which should provide ideas for potential future works. Finally, we compare these mechanisms and discuss open research issues.

The dynamics of slug trains in volcanic conduits: Evidence for expansion driven slug coalescence

NASA Astrophysics Data System (ADS)

Pering, T. D.; McGonigle, A. J. S.; James, M. R.; Capponi, A.; Lane, S. J.; Tamburello, G.; Aiuppa, A.

2017-12-01

Strombolian volcanism is a ubiquitous form of activity, driven by the ascent and bursting of bubbles of slug morphology. Whilst considerable attention has been devoted to understanding the behaviour of individual slugs in this regime, relatively little is known about how inter-slug interactions modify flow conditions. Recently, we reported on high temporal frequency strombolian activity on Etna, in which the larger erupted slug masses were followed by longer intervals before the following explosion than the smaller bursts (Pering et al., 2015). We hypothesised that this behaviour arose from the coalescence of ascending slugs causing a prolonged lag before arrival of the next distinct bubble. Here we consider the potential importance of inter-slug interactions for the dynamics of strombolian volcanism, by reporting on the first study into the behaviour of trains of ascending gas slugs, scaled to the expansion rates in volcanic conduits. This laboratory analogue study illustrates that slugs in trains rise faster than individual slugs, and can be associated with aspects of co-current flow. The work also highlights that coalescence and inter-slug interactions play an important role in modulating slug train behaviour. We also report, for the first time, on slug coalescence driven by vertical expansion of the trailing slug, a process which can occur, even where the leading slug base ascent velocity is greater than that of the trailing slug.

Scavengers: A behind-the-scenes recycling battle

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

Goff, J.A.

Though it may not garner a spotlight as the number-one issue facing the recycling industry, the theft of recyclables is a subtle and elusive vexation that is costing haulers and recyclers thousands of dollars each year. Scavenging is not a new dilemma for the industry. But aside from an occasional seminar on the topic, not much attention has been devoted to the problem, despite the fact that poaching deprives curbside programs of revenues that help offset operating costs. In some locations, losses due to scavenging have sabotaged the efficacy of curbside recycling as a whole.

Chromatography - mass spectrometry in aerospace industry

NASA Astrophysics Data System (ADS)

Buryak, A. K.; Serdyuk, T. M.

2013-01-01

The applications of chromatography - mass spectrometry in aerospace industry are considered. The primary attention is devoted to the development of physicochemical grounds of the use of various chromatography - mass spectrometry procedures to solve topical problems of this industry. Various methods for investigation of the composition of rocket fuels, surfaces of structural materials and environmental media affected by aerospace activities are compared. The application of chromatography - mass spectrometry for the development and evaluation of processes for decontaminations of equipment, industrial wastes and soils from rocket fuel components is substantiated. The bibliography includes 135 references.

Multiple perspectives on groupwork with children of battered women.

PubMed

Peled, E; Edleson, J L

1992-01-01

As this century ends there continues to be little public attention devoted to child witnesses of woman abuse and few social programs exist to meet their needs. This article presents the findings of a qualitative evaluation of a group program for children of battered women. Interviews were conducted with 16 mothers, 5 fathers, 9 group leaders, and 30 children who participated in 8 groups. Data also included observations of one complete group process (10 groups and 3 family sessions). Both intended and unintended results are presented and recommendations for practice are discussed.

Chaotic time series analysis in economics: Balance and perspectives

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

Faggini, Marisa, E-mail: mfaggini@unisa.it

2014-12-15

The aim of the paper is not to review the large body of work concerning nonlinear time series analysis in economics, about which much has been written, but rather to focus on the new techniques developed to detect chaotic behaviours in economic data. More specifically, our attention will be devoted to reviewing some of these techniques and their application to economic and financial data in order to understand why chaos theory, after a period of growing interest, appears now not to be such an interesting and promising research area.

Do consumers have the right to drink healthy wine? An appraisal of the Deutsches Weintor case.

PubMed

Inglese, Marco

2013-09-01

This article seeks to appraise the development that the Deutsches Weintor case will bring to EU law concerning health protection. The analysis will be carried out by highlighting the structure and the aims of Regulation no. 1924/2006/EC in order to assess its role in the construction of health as a fundamental right. Furthermore, attention will be devoted to how this judgment could affect the general theory behind fundamental rights and how it is placed in relation to the settled case law of the Court.

Ancient Indian Astronomy in Introductory Texts

NASA Astrophysics Data System (ADS)

Narahari Achar, B. N.

1997-10-01

It is customary in introductory survey courses in astronomy to devote some time to the history of astronomy. In the available text books only the Greek contribution receives any attention. Apart from Stonehenge and Chichenitza pictures, contributions from Babylon and China are some times mentioned. Hardly any account is given of ancient Indian astronomy. Even when something is mentioned it is incomplete or incorrect or both. Examples are given from several text books currently available. An attempt is made to correct this situation by sketching the contributions from the earliest astronomy of India, namely Vedaanga Jyotisha.

Relay Protection and Automation Systems Based on Programmable Logic Integrated Circuits

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

Lashin, A. V., E-mail: LashinAV@lhp.ru; Kozyrev, A. V.

One of the most promising forms of developing the apparatus part of relay protection and automation devices is considered. The advantages of choosing programmable logic integrated circuits to obtain adaptive technological algorithms in power system protection and control systems are pointed out. The technical difficulties in the problems which today stand in the way of using relay protection and automation systems are indicated and a new technology for solving these problems is presented. Particular attention is devoted to the possibility of reconfiguring the logic of these devices, using programmable logic integrated circuits.

Books and monographs on finite element technology

NASA Technical Reports Server (NTRS)

Noor, A. K.

1985-01-01

The present paper proviees a listing of all of the English books and some of the foreign books on finite element technology, taking into account also a list of the conference proceedings devoted solely to finite elements. The references are divided into categories. Attention is given to fundamentals, mathematical foundations, structural and solid mechanics applications, fluid mechanics applications, other applied science and engineering applications, computer implementation and software systems, computational and modeling aspects, special topics, boundary element methods, proceedings of symmposia and conferences on finite element technology, bibliographies, handbooks, and historical accounts.

Identity-Based Motivation: Constraints and Opportunities in Consumer Research

PubMed Central

Shavitt, Sharon; Torelli, Carlos J.; Wong, Jimmy

2009-01-01

This commentary underscores the integrative nature of the identity-based motivation model (Oyserman, 2009). We situate the model within existing literatures in psychology and consumer behavior, and illustrate its novel elements with research examples. Special attention is devoted to, 1) how product- and brand-based affordances constrain identity-based motivation processes and, 2) the mindsets and action tendencies that can be triggered by specific cultural identities in pursuit of consumer goals. Future opportunities are suggested for researching the antecedents of product meanings and relevant identities. PMID:20161045

Re-thinking residential mobility

PubMed Central

van Ham, Maarten; Findlay, Allan M.

2015-01-01

While researchers are increasingly re-conceptualizing international migration, far less attention has been devoted to re-thinking short-distance residential mobility and immobility. In this paper we harness the life course approach to propose a new conceptual framework for residential mobility research. We contend that residential mobility and immobility should be re-conceptualized as relational practices that link lives through time and space while connecting people to structural conditions. Re-thinking and re-assessing residential mobility by exploiting new developments in longitudinal analysis will allow geographers to understand, critique and address pressing societal challenges. PMID:27330243

Wind tunnel tests of four flexible wing ultralight gliders

NASA Technical Reports Server (NTRS)

Ormiston, R. A.

1979-01-01

The aerodynamic lift, drag, and pitching moment characteristics of four full scale, flexible wing, ultralight gliders were measured in the settling chamber of a low speed wind tunnel. The gliders were tested over a wide range of angle of attack and at two different velocities. Particular attention was devoted to the lift and pitching moment behavior at low and negative angles of attack because of the potential loss of longitudinal stability of flexible wing gliders in this regime. The test results were used to estimate the performance and longitudinal control characteristics of the gliders.

Aspartate Aminotransferase (AST/GOT) and Alanine Aminotransferase (ALT/GPT) Detection Techniques

PubMed Central

Huang, Xing-Jiu; Choi, Yang-Kyu; Im, Hyung-Soon; Yarimaga, Oktay; Yoon, Euisik; Kim, Hak-Sung

2006-01-01

The levels of aspartate aminotransferase (AST/GOT) and alanine aminotransferase (ALT/GPT) in serum can help people diagnose body tissues especially the heart and the liver are injured or not. This article provides a comprehensive review of research activities that concentrate on AST/GOT and ALT/GPT detection techniques due to their clinical importance. The detection techniques include colorimetric, spectrophotometric, chemiluminescence, chromatography, fluorescence and UV absorbance, radiochemical, and electrochemical techniques. We devote the most attention on experimental principle. In some methods a few representative devices and important conclusions are presented.

Chemical evolution - Recent syntheses of bioorganic molecules.

NASA Technical Reports Server (NTRS)

Stephen-Sherwood, E.; Oro, J.

1973-01-01

Review of the important developments that have occurred in abiological biomonomer and biopolymer synthesis since about 1967, and discussion of their significance for the field of chemical evolution and the origin of life. The major portion of the review is devoted to important developments in the abiotic formation of bioorganic monomers and their condensation to biopolymers under conditions presumed to have prevailed on the primeval earth. Special attention is given to contributions shedding light on the mechanism of synthesis and selection of amino acids and on interactions of amino acids and polypeptides with nucleotides and oligonucleotides.

Exploring plane-symmetric solutions in f(R) gravity

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

Shamir, M. F., E-mail: farasat.shamir@nu.edu.pk

2016-02-15

The modified theories of gravity, especially the f(R) gravity, have attracted much attention in the last decade. This paper is devoted to exploring plane-symmetric solutions in the context of metric f(R) gravity. We extend the work on static plane-symmetric vacuum solutions in f(R) gravity already available in the literature [1, 2]. The modified field equations are solved using the assumptions of both constant and nonconstant scalar curvature. Some well-known solutions are recovered with power-law and logarithmic forms of f(R) models.

Couplings

NASA Astrophysics Data System (ADS)

Stošić, Dušan; Auroux, Aline

Basic principles of calorimetry coupled with other techniques are introduced. These methods are used in heterogeneous catalysis for characterization of acidic, basic and red-ox properties of solid catalysts. Estimation of these features is achieved by monitoring the interaction of various probe molecules with the surface of such materials. Overview of gas phase, as well as liquid phase techniques is given. Special attention is devoted to coupled calorimetry-volumetry method. Furthermore, the influence of different experimental parameters on the results of these techniques is discussed, since it is known that they can significantly influence the evaluation of catalytic properties of investigated materials.

Uncertainty Assessment: What Good Does it Do? (Invited)

NASA Astrophysics Data System (ADS)

Oreskes, N.; Lewandowsky, S.

2013-12-01

The scientific community has devoted considerable time and energy to understanding, quantifying and articulating the uncertainties related to anthropogenic climate change. However, informed decision-making and good public policy arguably rely far more on a central core of understanding of matters that are scientifically well established than on detailed understanding and articulation of all relevant uncertainties. Advocates of vaccination, for example, stress its overall efficacy in preventing morbidity and mortality--not the uncertainties over how long the protective effects last. Advocates for colonoscopy for cancer screening stress its capacity to detect polyps before they become cancerous, with relatively little attention paid to the fact that many, if not most, polyps, would not become cancerous even if left unremoved. So why has the climate science community spent so much time focused on uncertainty? One reason, of course, is that articulation of uncertainty is a normal and appropriate part of scientific work. However, we argue that there is another reason that involves the pressure that the scientific community has experienced from individuals and groups promoting doubt about anthropogenic climate change. Specifically, doubt-mongering groups focus public attention on scientific uncertainty as a means to undermine scientific claims, equating uncertainty with untruth. Scientists inadvertently validate these arguments by agreeing that much of the science is uncertain, and thus seemingly implying that our knowledge is insecure. The problem goes further, as the scientific community attempts to articulate more clearly, and reduce, those uncertainties, thus, seemingly further agreeing that the knowledge base is insufficient to warrant public and governmental action. We refer to this effect as 'seepage,' as the effects of doubt-mongering seep into the scientific community and the scientific agenda, despite the fact that addressing these concerns does little to alter the public debate or advance public policy. We argue that attempts to address public doubts by improving uncertainty assessment are bound to fail, insofar as the motives for doubt-mongering are independent of scientific uncertainty, and therefore remain unaffected even as those uncertainties are diminished. We illustrate this claim by consideration of the evolution of the debate over the past ten years over the relationship between hurricanes and anthropogenic climate change. We suggest that scientists should pursue uncertainty assessment if such assessment improves scientific understanding, but not as a means to reduce public doubts or advance public policy in relation to anthropogenic climate change.

The gabbros and associated hornblende rocks occurring in the neighborhood of Baltimore, Maryland

USGS Publications Warehouse

Williams, George Huntington

1886-01-01

Considerable attention has been devoted during late years to the metamorphism of igneous rocks, and it can now be regarded as placed beyond reasonable doubt that such rocks may be changed to more or less schistose masses, which often closely resemble crystallized sediments. This possibility has heretofore been largely ignored, owing doubtless to the extensive obliteration of those characteristics which are generally regarded as most typical of eruptive rocks. Schistose or banded structure, however, can now hardly be considered as necessarily an indication of sedimentary origin. The minerals which are most characteristic of the so-called crystalline schists have been repeatedly shown to be derived from the alteration of igneous as well as of aqueous formations. These minerals only represent the final and most stable combination of certain elements under certain conditions, and are quite independent of the earlier combinations in which these elements may have existed. A lava bed and a clay bank, if the two may be supposed to have originally had the same chemical composition, might, under the influence of the same metamorphic agencies, ultimately give rise to the same rock in spite of original differences in structure or mineralogical composition. Stratification may be obliterated by metamorphism, while foliation, or even a banded structure, may, by the same means, be secondarily induced. Neither structure nor mineral composition can be taken as an infallible guide in determining the origin or the age of rocks.The present paper is intended as a contribution to our knowledge of a particular phase of metamorphism in eruptive rocks, i. e., that one which is dependent on the secondary development of hornblende by the paramorphism or pseudomorphism of pyroxene. This is a change the frequency of which renders it of fundamental geological importance. It has already received considerable attention from many eminent geologists, but no locality heretofore studied seems to have afforded opportunities for tracing out every stage in the process of alteration superior to those offered by the area of massive rocks west and northwest of the city of Baltimore. Here, covering a district of over fifty square miles, the unchanged pyroxene rock and its resultant hornblendic equivalent occur in the most intimate relations. Exposures of both rocks in situ are numerous, and the opportunity of following out the gradual transition of one into the other is proportionately great.

Ground and Low-Lying Excited States of Interacting Electron Systems: A Survey and Some Critical Analyses

NASA Astrophysics Data System (ADS)

Farid, Behnam

1999-12-01

In this contribution we deal with a number of theoretical aspects concerning physics of systems of interacting electrons. Our discussions, although amenable to appropriate generalisations, are subject to some limitations. To name, we deal with systems of spin-less fermions — or those of spin-compensated fermions with spin —, with nondegenerate ground states, and those in which relativistic effects are negligible; we disregard ionic motions and deal with "normal" (not superconducting, for instance) systems that are in addition free from randomly distributed impurities. We restrict our considerations to the absolute zero of temperature. The Green and response functions feature in our theoretical considerations. Here we give especial attention to the analytic properties of these functions for complex values of energy. We discuss how, both fundamentally and from the practical viewpoint, ground and low-lying excited-states properties can be obtained from these correlation functions. Characterising low-lying excited states by means of elementary excitations, we deal with both those that are particle-like (the Landau quasi-particles) and those that are collective (plasmons, excitation in the total distribution of electrons). We devote some space to discussions concerning the domain of validity and breakdown of the many-body perturbation theory, specifically that for the single-particle Green function and the self-energy operator. Extensive analysis of the asymptotic behaviour of dynamic correlation functions in the limits of small and large energies reveal the significance of the Kohn-Sham-like Hamiltonians within the context of the many-body perturbation theory. In view of this, at places we pay especial attention to a number of the existing density-functional theories (including the ones for the single-particle reduced density matrix and time-dependent external potentials). We discuss in some detail a number of issues that are specific to the (phenomenological) Landau Fermi-liquid theory and their justification within the framework of the many-body perturbation theory. In doing so we touch upon a number of characteristic features specific to Fermi-liquid (as oppsed to marginal Fermi- and Luttinger-liquid) systems. Finally, we put one particular approximation scheme for the self-energy operator, known as the the GW scheme, under magnifying glass and observe it in many of its facets.

Altered social attention in anorexia nervosa during real social interaction.

PubMed

Dalmaso, Mario; Castelli, Luigi; Scatturin, Pietro; Carli, Lorenza; Todisco, Patrizia; Palomba, Daniela; Galfano, Giovanni

2016-03-17

The capacity to devote attentional resources in response to body-related signals provided by others is still largely unexplored in individuals with Anorexia Nervosa (AN). Here, we tested this capacity through a novel paradigm that mimics a social interaction with a real partner. Healthy individuals (Experiment 1) and individuals with AN (Experiment 2) completed a task with another person which consisted in performing, alternatively, rapid aiming movements to lateralised targets. Generally, this task leads to a form of Inhibition of Return (IOR), which consists of longer reaction times when an individual has to respond to a location previously searched by either himself (individual IOR) or by the partner (social IOR) as compared to previously unexplored locations. IOR is considered as an important attentional mechanism that promotes an effective exploration of the environment during social interaction. Here, healthy individuals displayed both individual and social IOR that were both reliable and of the same magnitude. Individuals with AN displayed a non-significant individual IOR but a reliable social IOR that was also significantly stronger than individual IOR. These results suggest the presence of a reduced sensitivity in processing body-related stimuli conveyed by oneself in individuals with AN which is reflected in action-based attentional processes.

Further developments of EISCAT as an MST radar

NASA Technical Reports Server (NTRS)

Rottger, J.

1984-01-01

The principal capabilities of EISCAT as an MST radar were described. Since the VHF transmitter of the EISCAT system is not yet delivered, only the UHF system could be used for radar experiments. Considerable developments in the year 1983 have now strongly improved the reliability of the operations. Most of the experiments were and will be done to investigate the high latitude ionosphere and thermosphere, but some time was also devoted to observations of the lower and middle atmosphere, particularly during the MAP/WINE compaign.

Stress, Behavior and Health: Developing a Model for Predicting Post-Deployment Morbidity, Mortality and Other Adverse Outcomes

DTIC Science & Technology

2001-07-01

line corresponded very closely to media coverage of "mysterious illnesses" among GWE veterans (17). The role of publicity in affecting healthcare ...of deployment related health, and in particular the potential etiologic role of stress in the development of Gulf War Illnesses (GWI). To this end we...have devoted considerable resources to the scrupulous collection and linkage of data with the potential to shed light on the role of stress and other

Digital processing of the Mariner 10 images of Venus and Mercury

NASA Technical Reports Server (NTRS)

Soha, J. M.; Lynn, D. J.; Mosher, J. A.; Elliot, D. A.

1977-01-01

An extensive effort was devoted to the digital processing of the Mariner 10 images of Venus and Mercury at the Image Processing Laboratory of the Jet Propulsion Laboratory. This effort was designed to optimize the display of the considerable quantity of information contained in the images. Several image restoration, enhancement, and transformation procedures were applied; examples of these techniques are included. A particular task was the construction of large mosaics which characterize the surface of Mercury and the atmospheric structure of Venus.

A therapy inactivating the tumor angiogenic factors.

PubMed

Morales-Rodrigo, Cristian

2013-02-01

This paper is devoted to a nonlinear system of partial differential equations modeling the effect of an anti-angiogenic therapy based on an agent that binds to the tumor angiogenic factors. The main feature of the model under consideration is a nonlinear flux production of tumor angiogenic factors at the boundary of the tumor. It is proved the global existence for the nonlinear system and the effect in the large time behavior of the system for high doses of the therapeutic agent.

College Students' Attention Behaviors during Independent Study and Course Level Academic Performance

ERIC Educational Resources Information Center

Wagner, Linda G.

2012-01-01

Students in college make daily choices about how to use their independent study time, including choices about allocation of attention. Based on theoretical considerations and clinical studies, attention and the dividing of attention through multitasking is thought to have a relationship to performance levels. Research is only beginning to explore,…

Alcohol consumers' attention to warning labels and brand information on alcohol packaging: Findings from cross-sectional and experimental studies.

PubMed

Kersbergen, Inge; Field, Matt

2017-01-26

Alcohol warning labels have a limited effect on drinking behavior, potentially because people devote minimal attention to them. We report findings from two studies in which we measured the extent to which alcohol consumers attend to warning labels on alcohol packaging, and aimed to identify if increased attention to warning labels is associated with motivation to change drinking behavior. Study 1 (N = 60) was an exploratory cross-sectional study in which we used eye-tracking to measure visual attention to brand and health information on alcohol and soda containers. In study 2 (N = 120) we manipulated motivation to reduce drinking using an alcohol brief intervention (vs control intervention) and measured heavy drinkers' attention to branding and warning labels with the same eye-tracking paradigm as in study 1. Then, in a separate task we experimentally manipulated attention by drawing a brightly colored border around health (or brand) information before measuring participants' self-reported drinking intentions for the subsequent week. Study 1 showed that participants paid minimal attention to warning labels (7% of viewing time). Participants who were motivated to reduce drinking paid less attention to alcohol branding and alcohol warning labels. Results from study 2 showed that the alcohol brief intervention decreased attention to branding compared to the control condition, but it did not affect attention to warning labels. Furthermore, the experimental manipulation of attention to health or brand information did not influence drinking intentions for the subsequent week. Alcohol consumers allocate minimal attention to warning labels on alcohol packaging and even if their attention is directed to these warning labels, this has no impact on their drinking intentions. The lack of attention to warning labels, even among people who actively want to cut down, suggests that there is room for improvement in the content of health warnings on alcohol packaging.

Mercury levels and potential risk from subsistence foods from the Aleutians.

PubMed

Burger, Joanna; Gochfeld, Michael; Jeitner, Christian; Burke, Sean; Stamm, Tim; Snigaroff, Ronald; Snigaroff, Dan; Patrick, Robert; Weston, Jim

2007-10-01

Considerable attention has been devoted to contaminants (mainly PCBs and mercury) in subsistence foods (particularly fish) from various parts of the world. However, relatively little attention has been devoted to examining mercury levels in a full range of subsistence foods from a particular region. While managers and scientists compute risk based on site-specific data on contaminant levels and consumption rates, a first step in making risk decisions by subsistence peoples is knowledge about the relative levels of mercury in the foods they eat. This study examined levels of mercury in subsistence foods (edible components) from several islands in the western Aleutians of Alaska, including algae (4 species), invertebrates (9 species), fish (15 species) and birds (5 species). Samples were gathered by both subsistence hunters/fishers and by scientists using the same equipment. Another objective was to determine if there were differences in mercury levels in subsistence foods gathered from different Aleutian islands. We tested the null hypotheses that there were no interspecific and interisland differences in mercury levels. Because of variation in distribution and the nature of subsistence hunting and fishing, not all organisms were collected from each of the islands. There were significant and important differences in mercury levels among species, but the locational differences were rather small. There was an order of magnitude difference between algae/some invertebrates and fish/birds. Even within fish, there were significant differences. The highest mean mercury levels were in flathead sole (Hippoglossoides elassodon, 0.277 ppm), yellow irish lord (Hemilepidotus jardani, 0.281 ppm), great sculpin (Myoxocephalus polyacanthocephalus, 0.366 ppm), glaucous-winged gull (Larus glaucescens, 0.329 ppm) and its eggs (0.364 ppm), and pigeon guillemot (Cepphus columba, 0.494 ppm). Mercury levels increased with increasing weight of the organisms for limpets (Tectura scutum), and for 11 of the 15 fish species examined. Nine of the 15 fish species had some samples over the 0.3 ppm level, and 7 of 15 fish had some samples over 0.5 ppm. For birds, 95% of the pigeon guillemot muscle samples were above the 0.3 ppm, and 43% were above 0.5 ppm. While health professionals may argue about the risk and benefits of eating fish, and of eating alternative protein sources, the public should be provided with enough information for them to make informed decisions. This is particularly true for subsistence people who consume large quantities of self-caught foods, particularly for sensitive sub-populations, such as pregnant women. We argue that rather than giving people blanket statements about the health benefits or risks from eating fish, information on mean and maximum mercury levels should also be provided on a wide range of subsistence foods, allowing informed decisions, especially by those most at risk.

Indications and Warning Analysis Management System IWAMS. A Design Study

DTIC Science & Technology

1980-03-01

First, we must understand the process of warning analysis; we must develop an -;adequate functional model. In the present research we have divided ...and changeable). (In subsequent discussions, considerable attention will be focused on these issues.) -77-7-12Z ’m,77+-U 21 WARNING ANALYSIS MODEL...have charted limitations in man’s memory, attention span, reasoning capability and other cognitive functions. These limitations considerably affect man’s

Cellular nonlinear networks for strike-point localization at JET

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

Arena, P.; Fortuna, L.; Bruno, M.

2005-11-15

At JET, the potential of fast image processing for real-time purposes is thoroughly investigated. Particular attention is devoted to smart sensors based on system on chip technology. The data of the infrared cameras were processed with a chip implementing a cellular nonlinear network (CNN) structure so as to support and complement the magnetic diagnostics in the real-time localization of the strike-point position in the divertor. The circuit consists of two layers of complementary metal-oxide semiconductor components, the first being the sensor and the second implementing the actual CNN. This innovative hardware has made it possible to determine the position ofmore » the maximum thermal load with a time resolution of the order of 30 ms. Good congruency has been found with the measurement from the thermocouples in the divertor, proving the potential of the infrared data in locating the region of the maximum thermal load. The results are also confirmed by JET magnetic codes, both those used for the equilibrium reconstructions and those devoted to the identification of the plasma boundary.« less

Aeroelastic Tailoring for Stability Augmentation and Performance Enhancements of Tiltrotor Aircraft

NASA Technical Reports Server (NTRS)

Nixon, Mark W.; Piatak, David J.; Corso, Lawrence M.; Popelka, David A.

1999-01-01

The requirements for increased speed and productivity for tiltrotors has spawned several investigations associated with proprotor aeroelastic stability augmentation and aerodynamic performance enhancements. Included among these investigations is a focus on passive aeroelastic tailoring concepts which exploit the anisotropic capabilities of fiber composite materials. Researchers at Langley Research Center and Bell Helicopter have devoted considerable effort to assess the potential for using these materials to obtain aeroelastic responses which are beneficial to the important stability and performance considerations of tiltrotors. Both experimental and analytical studies have been completed to examine aeroelastic tailoring concepts for the tiltrotor, applied either to the wing or to the rotor blades. This paper reviews some of the results obtained in these aeroelastic tailoring investigations and discusses the relative merits associated with these approaches.

Recent Progress in Technologies for Tactile Sensors

PubMed Central

Sun, Xuguang; Xue, Ning; Li, Tong; Liu, Chang

2018-01-01

Over the last two decades, considerable scientific and technological efforts have been devoted to developing tactile sensing based on a variety of transducing mechanisms, with prospective applications in many fields such as human–machine interaction, intelligent robot tactile control and feedback, and tactile sensorized minimally invasive surgery. This paper starts with an introduction of human tactile systems, followed by a presentation of the basic demands of tactile sensors. State-of-the-art tactile sensors are reviewed in terms of their diverse sensing mechanisms, design consideration, and material selection. Subsequently, typical performances of the sensors, along with their advantages and disadvantages, are compared and analyzed. Two major potential applications of tactile sensing systems are discussed in detail. Lastly, we propose prospective research directions and market trends of tactile sensing systems. PMID:29565835

Printed Arabic optical character segmentation

NASA Astrophysics Data System (ADS)

Mohammad, Khader; Ayyesh, Muna; Qaroush, Aziz; Tumar, Iyad

2015-03-01

A considerable progress in recognition techniques for many non-Arabic characters has been achieved. In contrary, few efforts have been put on the research of Arabic characters. In any Optical Character Recognition (OCR) system the segmentation step is usually the essential stage in which an extensive portion of processing is devoted and a considerable share of recognition errors is attributed. In this research, a novel segmentation approach for machine Arabic printed text with diacritics is proposed. The proposed method reduces computation, errors, gives a clear description for the sub-word and has advantages over using the skeleton approach in which the data and information of the character can be lost. Both of initial evaluation and testing of the proposed method have been developed using MATLAB and shows 98.7% promising results.

The influence of flow parameters on the transition to turbulence in supersonic boundary layer on swept wing

NASA Astrophysics Data System (ADS)

Semionov, N. V.; Yermolaev, Yu. G.; Kosinov, A. D.; Dryasov, A. D.; Semenov, A. N.; Yatskikh, A. A.

2016-10-01

The paper is devoted to an experimental study of laminar-turbulent transition in a three-dimensional supersonic boundary layer. The experiments were conducted at the low nose supersonic wind tunnel T-325 of ITAM at Mach numbers M=2 - 4. Model is a symmetrical wing with a 45° sweep angle, a 3 percent-thick circular-arc airfoil. The influence of flow parameters, such as the Mach number, unit Reynolds number, angle of attack, level of perturbations on the transitions to turbulence are on the consideration. Transition Reynolds numbers are obtained. Analysis of all obtained data allow to determine reliable value of Retr of swept wing supersonic boundary layer, that especially important at consideration of experiments fulfilled at different flow conditions in different wind tunnels.

Recent Progress in Technologies for Tactile Sensors.

PubMed

Chi, Cheng; Sun, Xuguang; Xue, Ning; Li, Tong; Liu, Chang

2018-03-22

Over the last two decades, considerable scientific and technological efforts have been devoted to developing tactile sensing based on a variety of transducing mechanisms, with prospective applications in many fields such as human-machine interaction, intelligent robot tactile control and feedback, and tactile sensorized minimally invasive surgery. This paper starts with an introduction of human tactile systems, followed by a presentation of the basic demands of tactile sensors. State-of-the-art tactile sensors are reviewed in terms of their diverse sensing mechanisms, design consideration, and material selection. Subsequently, typical performances of the sensors, along with their advantages and disadvantages, are compared and analyzed. Two major potential applications of tactile sensing systems are discussed in detail. Lastly, we propose prospective research directions and market trends of tactile sensing systems.

Gender characteristics of cerebral hemodynamics during complex cognitive functioning.

PubMed

Misteli, Maria; Duschek, Stefan; Richter, André; Grimm, Simone; Rezk, Markus; Kraehenmann, Rainer; Boeker, Heinz; Seifritz, Erich; Schuepbach, Daniel

2011-06-01

Functional Transcranial Doppler sonography (fTCD) has been applied to assess peak mean cerebral blood flow velocity (MFV) with a high temporal resolution during cognitive activation. Yet, little attention has been devoted to gender-related alterations of MFV, including spectral analysis. In healthy subjects, fTCD was used to investigate a series of cerebral hemodynamic parameters in the middle cerebral arteries (MCA) during the Trail Making Tests (TMT), a means of selective attention and complex cognitive functioning. In females, there was a frequency peak at 0.375 Hz in both MCA, and we observed a dynamic shift in hemispheric dominance during that condition. Further, after the start phase, there was an MFV decline during complex functioning for the entire sample. These novel results suggest condition-specific features of cerebral hemodynamics in females, and it adds to the notion that gender is a fundamental confounder of brain physiology. Copyright © 2011 Elsevier Inc. All rights reserved.

A fuzzy hill-climbing algorithm for the development of a compact associative classifier

NASA Astrophysics Data System (ADS)

Mitra, Soumyaroop; Lam, Sarah S.

2012-02-01

Classification, a data mining technique, has widespread applications including medical diagnosis, targeted marketing, and others. Knowledge discovery from databases in the form of association rules is one of the important data mining tasks. An integrated approach, classification based on association rules, has drawn the attention of the data mining community over the last decade. While attention has been mainly focused on increasing classifier accuracies, not much efforts have been devoted towards building interpretable and less complex models. This paper discusses the development of a compact associative classification model using a hill-climbing approach and fuzzy sets. The proposed methodology builds the rule-base by selecting rules which contribute towards increasing training accuracy, thus balancing classification accuracy with the number of classification association rules. The results indicated that the proposed associative classification model can achieve competitive accuracies on benchmark datasets with continuous attributes and lend better interpretability, when compared with other rule-based systems.

Leadership for safety: industrial experience.

PubMed

Flin, R; Yule, S

2004-12-01

The importance of leadership for effective safety management has been the focus of research attention in industry for a number of years, especially in energy and manufacturing sectors. In contrast, very little research into leadership and safety has been carried out in medical settings. A selective review of the industrial safety literature for leadership research with possible application in health care was undertaken. Emerging findings show the importance of participative, transformational styles for safety performance at all levels of management. Transactional styles with attention to monitoring and reinforcement of workers' safety behaviours have been shown to be effective at the supervisory level. Middle managers need to be involved in safety and foster open communication, while ensuring compliance with safety systems. They should allow supervisors a degree of autonomy for safety initiatives. Senior managers have a prime influence on the organisation's safety culture. They need to continuously demonstrate a visible commitment to safety, best indicated by the time they devote to safety matters.

Prevention and management of lung cancer in China.

PubMed

Hong, Qun-Ying; Wu, Guo-Ming; Qian, Gui-Sheng; Hu, Cheng-Ping; Zhou, Jian-Ying; Chen, Liang-An; Li, Wei-Min; Li, Shi-Yue; Wang, Kai; Wang, Qi; Zhang, Xiao-Ju; Li, Jing; Gong, Xin; Bai, Chun-Xue

2015-09-01

Lung cancer is the leading cause of cancer-related death worldwide. In China, the incidence of lung cancer has grown rapidly, resulting in a large social and economic burden. Several researchers have devoted their studies to lung cancer and have demonstrated that there are many risk factors for lung cancer in China, including tobacco use, environmental pollution, food, genetics, and chronic obstructive pulmonary disease. However, the lung cancer incidence is still growing rapidly in China, and there is an even higher incidence among the younger generation. One explanation may be the triple-neglect situation, in which medical policies that neglect prevention, diagnosis, and supportive care have increased patients' mortality and reduced their quality of life. Therefore, it is necessary to enhance the efficiency of prevention and early diagnosis not only by focusing more attention on treatment but also by drawing more attention to supportive care for patients with lung cancer. © 2015 American Cancer Society.

Cytogenetic and symbiont analysis of five members of the B. dorsalis complex (Diptera, Tephritidae): no evidence of chromosomal or symbiont-based speciation events

PubMed Central

Augustinos, Antonios A.; Drosopoulou, Elena; Gariou-Papalexiou, Aggeliki; Asimakis, Elias D.; Cáceres, Carlos; Tsiamis, George; Bourtzis, Kostas; Penelope Mavragani-Tsipidou; Zacharopoulou, Antigone

2015-01-01

Abstract The Bactrocera dorsalis species complex, currently comprising about 90 entities has received much attention. During the last decades, considerable effort has been devoted to delimiting the species of the complex. This information is of great importance for agriculture and world trade, since the complex harbours several pest species of major economic importance and other species that could evolve into global threats. Speciation in Diptera is usually accompanied by chromosomal rearrangements, particularly inversions that are assumed to reduce/eliminate gene flow. Other candidates currently receiving much attention regarding their possible involvement in speciation are reproductive symbionts, such as Wolbachia, Spiroplasma, Arsenophonus, Rickettsia and Cardinium. Such symbionts tend to spread quickly through natural populations and can cause a variety of phenotypes that promote pre-mating and/or post-mating isolation and, in addition, can affect the biology, physiology, ecology and evolution of their insect hosts in various ways. Considering all these aspects, we present: (a) a summary of the recently gained knowledge on the cytogenetics of five members of the Bactrocera dorsalis complex, namely Bactrocera dorsalis s.s., Bactrocera invadens, Bactrocera philippinensis, Bactrocera papayae and Bactrocera carambolae, supplemented by additional data from a Bactrocera dorsalis s.s. colony from China, as well as by a cytogenetic comparison between the dorsalis complex and the genetically close species, Bactrocera tryoni, and, (b) a reproductive symbiont screening of 18 different colonized populations of these five taxa. Our analysis did not reveal any chromosomal rearrangements that could differentiate among them. Moreover, screening for reproductive symbionts was negative for all colonies derived from different geographic origins and/or hosts. There are many different factors that can lead to speciation, and our data do not support chromosomal and/or symbiotic-based speciation phenomena in the taxa under study. PMID:26798263

[Effect of biologically active food additives on energy metabolism and human body weight].

PubMed

Gapparov, M M

1999-01-01

Review is devoted to analysis of human energy requirements depending on age, sex, occupational and living condition. Special attention was paid to importance of strict balance in organism between consumption and expense of energy. Modern views on mechanism of action food supplements as additional instrument of regulation of energy metabolism for correction of surplus body weight is given. Review is the first attempt of systematisation of biologically active food supplements according to their mechanism of action both on nutrition processes and on biochemical mechanisms of assimilation and utilisation of macronutrients, in particular of fats and carbohydrates.

Monitoring health spending increases: incremental budget analyses reveal challenging tradeoffs.

PubMed

Hartman, Micah; Smith, Cynthia; Heffler, Stephen; Freeland, Mark

2006-01-01

With each passing decade, health care has consumed a larger share of gross domestic product (GDP) and Federal budgets. By the 2000-2004 period, society was willing to devote over 20 percent of the cumulative increase in GDP and the cumulative increase in Federal outlays towards health care. The financing challenges are expected to become more acute for private payers as well as Federal, State, and local budgets. With the implementation of Part D in 2006, the U.S. Office of Management and Budget projects that Federal budget pressures will heighten, bringing increased attention to Medicare's long-term fiscal outlook.

Verbal behavior: The other reviews

PubMed Central

Knapp, Terry J.

1992-01-01

The extensive attention devoted to Noam Chomsky's review of Verbal Behavior by B.F. Skinner has resulted in a neglect of more than a dozen other rewiews of the work. These are surveyed and found to be positive and congenial in tone, with many of the reviewers advancing his/her own analysis of speech and language. The dominant criticism of the book was its disregard of central or implicit processes and its lack of experimental data. An examination of the receptive history of Verbal Behavior offers a more balanced historical account than those which rely excessively on Chomsky's commentary PMID:22477049

Agents in real-time collaborative systems

NASA Astrophysics Data System (ADS)

Mitchell, David

1996-01-01

Desktop conferencing systems, providing voice- or video-conferencing with some form of data sharing, have become increasingly popular. Unlike asynchronous collaborative systems such as email, little attention has been devoted to the place of agents in such real-time systems. This paper examines some of the ways in which agents can be used to support such apparently simple tasks as the setting up and answering of calls. Three agent categories, locators, routers and responders, are defined and some simple examples discussed. Several ways in which such agents can collaborate, providing the basis of an intelligent network, are identified.

Contraceptive needs of the adolescent.

PubMed

Steyn, Petrus S; Goldstuck, Norman D

2014-08-01

The provision of contraception to adolescents requires specific attention. Adolescents require contraceptive methods which are safe, effective and simple to use. While long-acting reversible contraceptive methods are preferable, they should have a choice and not be forced or mandated especially in situations where this may compromise safety. After counselling they should have the ability to choose any method of contraception. Under the appropriate circumstances, each method of contraception may have a place. This chapter will be devoted to evaluating the most current scientific rationale for the indication for use of each method of contraception in adolescents. Copyright © 2014. Published by Elsevier Ltd.

Luminescence Sensors Applied to Water Analysis of Organic Pollutants—An Update

PubMed Central

Ibañez, Gabriela A.; Escandar, Graciela M.

2011-01-01

The development of chemical sensors for environmental analysis based on fluorescence, phosphorescence and chemiluminescence signals continues to be a dynamic topic within the sensor field. This review covers the fundamentals of this type of sensors, and an update on recent works devoted to quantifying organic pollutants in environmental waters, focusing on advances since about 2005. Among the wide variety of these contaminants, special attention has been paid polycyclic aromatic hydrocarbons, pesticides, explosives and emerging organic pollutants. The potential of coupling optical sensors with multivariate calibration methods in order to improve the selectivity is also discussed. PMID:22247654

Stochastic differential calculus for Gaussian and non-Gaussian noises: A critical review

NASA Astrophysics Data System (ADS)

Falsone, G.

2018-03-01

In this paper a review of the literature works devoted to the study of stochastic differential equations (SDEs) subjected to Gaussian and non-Gaussian white noises and to fractional Brownian noises is given. In these cases, particular attention must be paid in treating the SDEs because the classical rules of the differential calculus, as the Newton-Leibnitz one, cannot be applied or are applicable with many difficulties. Here all the principal approaches solving the SDEs are reported for any kind of noise, highlighting the negative and positive properties of each one and making the comparisons, where it is possible.

[ANATOMY AND BODIES: DEAD BODIES IN MUSEUMS FROM VAN RUYSCHA VON HAGENS].

PubMed

Marinozzi, Silvia

2015-01-01

The aim of the conference of which we are here publishing the proceedings, held in Rome at Sapienza-University in 2013, was to valorise the specific museological heritage of Italian Universities, in relation to analogous European and non-European Museums of Anatomy and Pathological Anatomy. A particular attention has been devoted to highlight the history of the origins and evolution of specific museological collections in order to focus reasons and circumstances of their foundation through the analysis of the signifcances, finctions and uses of anatomical parts or artifacts in different cultural contexts.

Particle shape analysis of volcanic clast samples with the Matlab tool MORPHEO

NASA Astrophysics Data System (ADS)

Charpentier, Isabelle; Sarocchi, Damiano; Rodriguez Sedano, Luis Angel

2013-02-01

This paper presents a modular Matlab tool, namely MORPHEO, devoted to the study of particle morphology by Fourier analysis. A benchmark made of four sample images with different features (digitized coins, a pebble chart, gears, digitized volcanic clasts) is then proposed to assess the abilities of the software. Attention is brought to the Weibull distribution introduced to enhance fine variations of particle morphology. Finally, as an example, samples pertaining to a lahar deposit located in La Lumbre ravine (Colima Volcano, Mexico) are analysed. MORPHEO and the benchmark are freely available for research purposes.

Development history of the Hybrid Test Vehicle

NASA Technical Reports Server (NTRS)

Trummel, M. C.; Burke, A. F.

1983-01-01

Phase I of a joint Department of Energy/Jet Propulsion Laboratory Program undertook the development of the Hybrid Test Vehicle (HTV), which has subsequently progressed through design, fabrication, and testing and evaluation phases. Attention is presently given to the design and test experience gained during the HTV development program, and a discussion is presented of the design features and performance capabilities of the various 'mule' vehicles, devoted to the separate development of engine microprocessor control, vehicle structure, and mechanical components, whose elements were incorporated into the final HTV design. Computer projections of the HTV's performance are given.

Thinking critically about campus-based self-defense programs: a response to Christine Gidycz.

PubMed

DeKeseredy, Walter S

2014-10-01

Often labeled "ivory towers," colleges are fertile breeding grounds of male to female sexual assault and other types of woman abuse. Still, across the United States and elsewhere, many researchers, practitioners, and activists are involved in an ongoing and ever-changing struggle to curb female victimization in institutions of higher learning. The main objective of this article is to offer a few thoughts about some prevention issues raised by Christine Gidycz. Special attention is devoted to the dangers associated with new electronic technologies, including texting and Internet pornography. © The Author(s) 2014.

Symposium on Rechargeable Lithium Batteries, Hollywood, FL, Oct. 19-24, 1989, Proceedings

NASA Technical Reports Server (NTRS)

Subbarao, S. (Editor); Koch, V. R. (Editor); Owens, B. B. (Editor); Smyrl, W. H. (Editor)

1990-01-01

Recent advances in the technology and applications of rechargeable Li cells are discussed in reviews and reports. A general overview of the field is provided, and sections are devoted to organic electrolyte systems, polymeric electrolyte systems, inorganic electrolytes systems, and molten-salt electrolytes. Particular attention is given to electrolyte stabilization, the effects of organic additives on electrolyte performance, a cycle-life sensor, consumer-product applications, in situ measurements of gas evolution in Li secondary cells, ultrathin polymer cathodes, electrochemical growth of conducting polymers, and sealing Li/FeS(x) cells for a bipolar battery.

On the use of attachment modes in substructure coupling for dynamic analysis

NASA Technical Reports Server (NTRS)

Craig, R. R., Jr.; Chang, C.-J.

1977-01-01

Substructure coupling or component-mode synthesis may be employed in the solution of dynamics problems for complex structures. Although numerous substructure-coupling methods have been devised, little attention has been devoted to methods employing attachment modes. In the present paper the various mode sets (normal modes, constraint modes, attachment modes) are defined. A generalized substructure-coupling procedure is described. Those substructure-coupling methods which employ attachment modes are described in detail. One of these methods is shown to lead to results (e.g., system natural frequencies) comparable to or better than those obtained by the Hurty (1965) method.

Peer mentoring for undergraduates in a research-focused diversity initiative

PubMed Central

Keller, Thomas E.; Logan, Kay; Lindwall, Jennifer; Beals, Caitlyn

2017-01-01

To provide multi-dimensional support for undergraduates from traditionally underrepresented backgrounds who aspire to careers in research, the BUILD EXITO project, part of a major NIH-funded diversity initiative, matches each scholar with three mentors: peer mentor (advanced student), career mentor (faculty adviser), and research mentor (research project supervisor). After describing the aims of the diversity initiative, the institutional context of the BUILD EXITO project, and the training program model, this article devotes special attention to the rationale for and implementation of the peer mentoring component within the context of the multi-faceted mentoring model. PMID:29398880