Research-Based Teacher Education? Exploring the Meaning Potentials of Swedish Teacher Education

ERIC Educational Resources Information Center

Alvunger, Daniel; Wahlström, Ninni

2018-01-01

In this article, we explore the meaning potentials of teacher education in terms of the significance of a research-based approach and the different pedagogic identities that such an approach implies. The study's aim is to examine the important factors for education to be considered research-based and to identify and analyse the research base of…

Alternative approaches to providing passenger transportation in low density cities : the case of Council Bluffs, Iowa

DOT National Transportation Integrated Search

1997-09-01

This study explores transportation alternatives for Council Bluffs. The intention is to explore alternatives that may potentially prove viable for other small cities faced with scattered development patterns and limited population density. The study ...

Facts and Feelings: Exploring the Affective Domain in the Learning of Physics.

ERIC Educational Resources Information Center

Alsop, Steve; Watts, Mike

2000-01-01

Presents the results of a comparative study of two groups of learners. Explores whether their feelings about a potentially emotive topic--radioactivity--influence their approach to learning. (Author/CCM)

"Spacecraft Reveals Recent Geological Activity on the Moon": Exploring the Features of NASA Twitter Posts and Their Potential to Engage Adolescents

ERIC Educational Resources Information Center

Lesley, Mellinee

2014-01-01

Through a content analysis of 200 "tweets," this study was an exploration into the distinct features of text posted to NASA's "Twitter" site and the potential for these posts to serve as more engaging scientific text than traditional textbooks for adolescents. Results of the content analysis indicated the tweets and linked…

Exploratory Network Meta Regression Analysis of Stroke Prevention in Atrial Fibrillation Fails to Identify Any Interactions with Treatment Effect.

PubMed

Batson, Sarah; Sutton, Alex; Abrams, Keith

2016-01-01

Patients with atrial fibrillation are at a greater risk of stroke and therefore the main goal for treatment of patients with atrial fibrillation is to prevent stroke from occurring. There are a number of different stroke prevention treatments available to include warfarin and novel oral anticoagulants. Previous network meta-analyses of novel oral anticoagulants for stroke prevention in atrial fibrillation acknowledge the limitation of heterogeneity across the included trials but have not explored the impact of potentially important treatment modifying covariates. To explore potentially important treatment modifying covariates using network meta-regression analyses for stroke prevention in atrial fibrillation. We performed a network meta-analysis for the outcome of ischaemic stroke and conducted an exploratory regression analysis considering potentially important treatment modifying covariates. These covariates included the proportion of patients with a previous stroke, proportion of males, mean age, the duration of study follow-up and the patients underlying risk of ischaemic stroke. None of the covariates explored impacted relative treatment effects relative to placebo. Notably, the exploration of 'study follow-up' as a covariate supported the assumption that difference in trial durations is unimportant in this indication despite the variation across trials in the network. This study is limited by the quantity of data available. Further investigation is warranted, and, as justifying further trials may be difficult, it would be desirable to obtain individual patient level data (IPD) to facilitate an effort to relate treatment effects to IPD covariates in order to investigate heterogeneity. Observational data could also be examined to establish if there are potential trends elsewhere. The approach and methods presented have potentially wide applications within any indication as to highlight the potential benefit of extending decision problems to include additional comparators outside of those of primary interest to allow for the exploration of heterogeneity.

Mineral resource potential map of the Bighorn Mountains Wilderness Study Area (CDCA-217), San Bernardino County, California

USGS Publications Warehouse

Matti, Jonathan C.; Cox, Brett F.; Rodriguez, Eduardo A.; Obi, Curtis M.; Powell, Robert E.; Hinkle, Margaret E.; Griscom, Andrew; Sabine, Charles; Cwick, Gary J.

1982-01-01

Geological, geochemical, and geophysical evidence, together with a review of historical mining and prospecting activities, suggests that most of the Bighorn Mountains Wilderness Study Area has low potential for the discovery of all types of mineral and energy resources-including precious and base metals, building stone and aggregate, fossil fuels, radioactive-mineral resources, and geothermal resources. Low-grade mineralization has been documented in one small area near Rattlesnake Canyon, and this area has low to moderate potential for future small-scale exploration and development of precious and base metals. Thorium and uranium enrichment have been documented in two small areas in the eastern part of the wilderness study area; these two areas have low to moderate potential for future small-scale exploration and development of radioactive-mineral resources.

Potential of Probing the Lunar Regolith using Rover-Mounted Ground Penetrating Radar: Moses Lake Dune Field Analog Study

NASA Technical Reports Server (NTRS)

Horz, F.; Heggy, E.; Fong, T.; Kring, D.; Deans, M.; Anglade, A.; Mahiouz, K.; Bualat, M.; Lee, P.; Bluethmann, W.

2009-01-01

Probing radars have been widely recognized by the science community to be an efficient tool to explore lunar subsurface providing a unique capability to address several scientific and operational issues. A wideband (200 to 1200 MHz) Ground Penetrating Radar (GPR) mounted on a surface rover can provide high vertical resolution and probing depth from few tens of centimeters to few tens of meters depending on the sounding frequency and the ground conductivity. This in term can provide a better understand regolith thickness, elemental iron concentration (including ilmenite), volatile presence, structural anomalies and fracturing. All those objectives are of important significance for understanding the local geology and potential sustainable resources for future landing sites in particular exploring the thickness, structural heterogeneity and potential volatiles presence in the lunar regolith. While the operation and data collection of GPR is a straightforward case for most terrestrial surveys, it is a challenging task for remote planetary study especially on robotic platforms due to the complexity of remote operation in rough terrains and the data collection constrains imposed by the mechanical motion of the rover and limitation in data transfer. Nevertheless, Rover mounted GPR can be of great support to perform systematic subsurface surveys for a given landing site as it can provide scientific and operational support in exploring subsurface resources and sample collections which can increase the efficiency of the EVA activities for potential human crews as part of the NASA Constellation Program. In this study we attempt to explore the operational challenges and their impact on the EVA scientific return for operating a rover mounted GPR in support of potential human activity on the moon. In this first field study, we mainly focused on the ability of GPR to support subsurface sample collection and explore shallow subsurface volatiles.

What Helps Children in a Pupil Referral Unit (PRU)? An Exploration into the Potential Protective Factors of a PRU as Identified by Children and Staff

ERIC Educational Resources Information Center

Hart, Natalie

2013-01-01

Previous studies have focused on the views of excluded children or those finding themselves in Pupil Referral Units (PRUs). Few, however, have focused on exploring views from a resilience perspective. Studies linked to resilience have tended to focus on exploring factors through quantitative rather than qualitative measures. This piece of research…

An Exploration of the Working Alliance in Mental Health Case Management

ERIC Educational Resources Information Center

Kondrat, David C.; Early, Theresa J.

2010-01-01

The working alliance between clients and helpers has been identified as a common factor of treatment effectiveness, yet very little research has explored variables associated with working alliance between mental health case managers and their consumers. This study explored the potential covariates of working alliance within community mental health…

Exploration of the SHRP2 naturalistic driving study data to identify factors related to the selection of freeway ramp design speed.

DOT National Transportation Integrated Search

2017-03-01

This research explored the second Strategic Highway Research Program (SHRP2) Naturalistic Driving Study (NDS) database for the potential to identify freeway entrance and exit ramps and teen drivers behavior while traveling those ramps. This is in ...

Urban Teacher Commitment: Exploring Associations with Organizational Conflict, Support for Innovation, and Participation

ERIC Educational Resources Information Center

Henkin, Alan B.; Holliman, Stephanie L.

2009-01-01

This study explores relationships between teachers' organizational commitment and interpersonal conflict, participation activities beyond the classroom, and innovation in schools. Potential relationships among study variables are suggested in research that views affective commitment as a proxy measure for decisions to leave the school. Increments…

Institutionalized Crucible Experiences within Intermediate-Level Education

DTIC Science & Technology

2015-06-12

This study explores the impact that crucible experiences have on leadership and leader development. This impact is specifically applied against the...pages. This study explores the impact that crucible experiences have on leadership and leader development. This impact is specifically applied...52 What are the Potential Negative Impacts Associated

Application of support vector machines for copper potential mapping in Kerman region, Iran

NASA Astrophysics Data System (ADS)

Shabankareh, Mahdi; Hezarkhani, Ardeshir

2017-04-01

The first step in systematic exploration studies is mineral potential mapping, which involves classification of the study area to favorable and unfavorable parts. Support vector machines (SVM) are designed for supervised classification based on statistical learning theory. This method named support vector classification (SVC). This paper describes SVC model, which combine exploration data in the regional-scale for copper potential mapping in Kerman copper bearing belt in south of Iran. Data layers or evidential maps were in six datasets namely lithology, tectonic, airborne geophysics, ferric alteration, hydroxide alteration and geochemistry. The SVC modeling result selected 2220 pixels as favorable zones, approximately 25 percent of the study area. Besides, 66 out of 86 copper indices, approximately 78.6% of all, were located in favorable zones. Other main goal of this study was to determine how each input affects favorable output. For this purpose, the histogram of each normalized input data to its favorable output was drawn. The histograms of each input dataset for favorable output showed that each information layer had a certain pattern. These patterns of SVC results could be considered as regional copper exploration characteristics.

Extending the Conceptualization of Listening Fidelity

ERIC Educational Resources Information Center

Fitch-Hauser, Margaret; Powers, William G.; O'Brien, Kelley; Hanson, Scott

2007-01-01

An exploration of variables potentially related to Listening Fidelity (LF) was conducted through two separate studies. Study 1 indicated that when the potential fidelity of the stimulus message was varied as a function of the number of words and time length, the message with lowest potential fidelity produced significantly lower LF than either the…

Exploring Nominalization in Scientific Textbooks: A Cross-Disciplinary Study of Hard and Soft Sciences

ERIC Educational Resources Information Center

Jalilifar, Alireza; White, Peter; Malekizadeh, N.

2017-01-01

Given the importance of disciplinary specificity in terms of the potential differences in the functionality of nominalizations in scientific textbooks and the dearth of studies of this type, the current study explores the extent to which nominalization is realized across two disciplines. To this aim, eight academic textbooks from Physics and…

Trait-based characterisation of soil exploitation strategies of banana, weeds and cover plant species

PubMed Central

Tardy, Florence; Damour, Gaëlle; Dorel, Marc; Moreau, Delphine

2017-01-01

Cover plants can be introduced in cropping systems to provide agroecosystem services, including weed control via competition for resources. There is currently no consensus on how to identify the best cover plant species, while trait-based approaches are promising for screening plant species due to their agroecosystem service provision potential. This study was carried out to characterize soil exploitation strategies of cover plant species in banana agroecosystems using a trait-based approach, and in turn identify cover plant species with a high weed control potential via competition for soil resources in banana cropping systems. A field experiment was conducted on 17 cover plant species, two weed species and two banana cultivars grown individually. Four functional traits were measured. Two of them (i.e., the size of the zone explored by roots and the root impact density) were used to characterize root system soil exploration patterns. Two other traits (i.e., specific root length and root diameter) were used to characterize resource acquisition within the soil zone explored by the roots. All studied traits exhibited marked variations among species. The findings suggested a trade-off between the abilities of species to develop a limited number of large diameter roots exploring a large soil zone versus many thin roots exploring a smaller soil zone. Three soil-resource exploitation strategies were identified among species: (i) with large diameter roots that explore a large soil zone; (ii) with small diameter roots and a high specific length that explore a smaller soil zone; and (iii) with a high total root-impact density and an intermediate specific root length that explore the uppermost soil layers. Interestingly, in our panel of species, no correlations with regard to belowground and aboveground strategies were noted: species with an acquisitive belowground strategy could display an acquisitive or a conservative aboveground strategy. The findings of this study illustrated that a trait-based approach could be used to identify plant species with potential for competing with weeds, while minimising competition with banana. Six of the 17 studied cover crop species were identified as having this potential. The next step will be to assess them for their weed control performances in banana cropping systems with low reliance on herbicides. PMID:28257454

Trait-based characterisation of soil exploitation strategies of banana, weeds and cover plant species.

PubMed

Tardy, Florence; Damour, Gaëlle; Dorel, Marc; Moreau, Delphine

2017-01-01

Cover plants can be introduced in cropping systems to provide agroecosystem services, including weed control via competition for resources. There is currently no consensus on how to identify the best cover plant species, while trait-based approaches are promising for screening plant species due to their agroecosystem service provision potential. This study was carried out to characterize soil exploitation strategies of cover plant species in banana agroecosystems using a trait-based approach, and in turn identify cover plant species with a high weed control potential via competition for soil resources in banana cropping systems. A field experiment was conducted on 17 cover plant species, two weed species and two banana cultivars grown individually. Four functional traits were measured. Two of them (i.e., the size of the zone explored by roots and the root impact density) were used to characterize root system soil exploration patterns. Two other traits (i.e., specific root length and root diameter) were used to characterize resource acquisition within the soil zone explored by the roots. All studied traits exhibited marked variations among species. The findings suggested a trade-off between the abilities of species to develop a limited number of large diameter roots exploring a large soil zone versus many thin roots exploring a smaller soil zone. Three soil-resource exploitation strategies were identified among species: (i) with large diameter roots that explore a large soil zone; (ii) with small diameter roots and a high specific length that explore a smaller soil zone; and (iii) with a high total root-impact density and an intermediate specific root length that explore the uppermost soil layers. Interestingly, in our panel of species, no correlations with regard to belowground and aboveground strategies were noted: species with an acquisitive belowground strategy could display an acquisitive or a conservative aboveground strategy. The findings of this study illustrated that a trait-based approach could be used to identify plant species with potential for competing with weeds, while minimising competition with banana. Six of the 17 studied cover crop species were identified as having this potential. The next step will be to assess them for their weed control performances in banana cropping systems with low reliance on herbicides.

The Potential of Past Tense Marking in Oral Reading as a Clinical Marker of Specific Language Impairment in School-Age Children

ERIC Educational Resources Information Center

Werfel, Krystal L.; Hendricks, Alison Eisel; Schuele, C. Melanie

2017-01-01

Purpose: The purpose of this study was twofold. The first aim was to explore differences in profiles of past tense marking in oral reading of school-age children with specific language impairment (SLI). The second aim was to explore the potential of past tense marking in oral reading as a clinical marker of SLI in school-age children. Method: This…

Exploring the Utility of Workload Models in Academe: A Pilot Study

ERIC Educational Resources Information Center

Boyd, Leanne

2014-01-01

The workload of academics in Australia is increasing. Among the potential ramifications of this are work-related stress and burnout. Unions have negotiated workload models in employment agreements as a means of distributing workload in a fair and transparent manner. This qualitative pilot study aimed to explore how academics perceive their current…

Interactions among Future Study Abroad Students: Exploring Potential Intercultural Learning Sequences

ERIC Educational Resources Information Center

Borghetti, C.; Beaven, A.; Pugliese, R.

2015-01-01

The study presented in this article aims to explore if and how intercultural learning may take place in students' class interaction. It is grounded in the assumption that interculturality is not a clear-cut feature inherent to interactions occurring when individuals with presumed different linguistic and cultural/national backgrounds talk to each…

Comparative Study of Suicide Potential among Pakistani and American Psychiatric Patients

ERIC Educational Resources Information Center

Farooqi, Yasmin Nilofer

2004-01-01

This study compared suicide potential and suicide attempts in 50 Pakistani and 50 American psychiatric patients all of whom reported a positive history of suicide attempts during the past 1-5 years. It further explored the role of nationality, gender, diagnosis, and marital status in respondents' potential for suicide and suicide attempts. The…

He Asked Me What!?--Using Shared Online Accounts as Training Tools for Distance Learning Librarians

ERIC Educational Resources Information Center

Robinson, Kelly; Casey, Anne Marie; Citro, Kathleen

2017-01-01

This study explores the idea of creating a knowledge base from shared online accounts to use in training librarians who perform distance reference services. Through a survey, follow-up interviews and a case study, the investigators explored current and potential use of shared online accounts as training tools. This study revealed that the…

Bill would expand ocean exploration

NASA Astrophysics Data System (ADS)

Showstack, Randy

Legislation introduced by U.S. Congressman James Greenwood (R-Penn.) on June 9 could lead to increased study and exploration of the world's oceans.“The Exploration of the Seas Act” (House Resolution 2090) would direct the Secretary of Commerce to contract with the National Academy of Sciences to establish a Coordinated Oceanographic Program Advisory Panel to report to Congress on the adoption and establishment of an international effort to explore the potential of the oceans.

Medical Grade Water Generation for Intravenous Fluid Production on Exploration Missions

NASA Technical Reports Server (NTRS)

Niederhaus, Charles E.; Barlow, Karen L.; Griffin, DeVon W.; Miller, Fletcher J.

2008-01-01

This document describes the intravenous (IV) fluids requirements for medical care during NASA s future Exploration class missions. It further discusses potential methods for generating such fluids and the challenges associated with different fluid generation technologies. The current Exploration baseline mission profiles are introduced, potential medical conditions described and evaluated for fluidic needs, and operational issues assessed. Conclusions on the fluid volume requirements are presented, and the feasibility of various fluid generation options are discussed. A separate report will document a more complete trade study on the options to provide the required fluids.At the time this document was developed, NASA had not yet determined requirements for medical care during Exploration missions. As a result, this study was based on the current requirements for care onboard the International Space Station (ISS). While we expect that medical requirements will be different for Exploration missions, this document will provide a useful baseline for not only developing hardware to generate medical water for injection (WFI), but as a foundation for meeting future requirements. As a final note, we expect WFI requirements for Exploration will be higher than for ISS care, and system capacity may well need to be higher than currently specified.

Spiritual and Affective Responses to a Physical Church and Corresponding Virtual Model.

PubMed

Murdoch, Matt; Davies, Jim

2017-11-01

Architectural and psychological theories posit that built environments have the potential to elicit complex psychological responses. However, few researchers have seriously explored this potential. Given the increasing importance and fidelity of virtual worlds, such research should explore whether virtual models of built environments are also capable of eliciting complex psychological responses. The goal of this study was to test these hypotheses, using a church, a corresponding virtual model, and an inclusive measure of state spirituality ("spiritual feelings"). Participants (n = 33) explored a physical church and corresponding virtual model, completing a measure of spiritual feelings after exploring the outside and inside of each version of the church. Using spiritual feelings after exploring the outside of the church as a baseline measure, change in state spirituality was assessed by taking the difference between spiritual feelings after exploring the inside and outside of the church (inside-outside) for both models. Although this change was greater in response to the physical church, there was no significant difference between the two models in eliciting such change in spiritual feelings. Despite the limitations of this exploratory study, these findings indicate that both built environments and corresponding virtual models are capable of evoking complex psychological responses.

Exploring mathematics outside the classroom with the help of GPS-enabled mobile phone application

NASA Astrophysics Data System (ADS)

Cahyono, A. N.; Ludwig, M.

2018-03-01

The aim of the study is to explore the potential of the mobile app-supported math trail program in promoting students’ intrinsic motivation for the engagement in mathematics and the opportunities of mathematical outdoor activity in particular. Explorative design research was conducted on nine secondary schools in the city of Semarang, Indonesia, with 272 students and nine teachers. Data were gathered using participatory observation, interviews, questionnaires, and student worksheets. The findings indicate that students were highly intrinsically motivated to be involved in mathematics learning. They found it easy to engage in the activities and gain relevant mathematical experiences. Students indicated they learned to use advanced technology for outdoor activity and to do the mathematization. The study suggests that school and public can take advantage of the result of this study. Further research in other places is needed to exploit its potential and future development.

Algorithmic Contexts and Learning Potentiality: A Case Study of Students' Understanding of Calculus

ERIC Educational Resources Information Center

Pettersson, Kerstin; Scheja, Max

2008-01-01

The study explores the nature of students' conceptual understanding of calculus. Twenty students of engineering were asked to reflect in writing on the meaning of the concepts of limit and integral. A sub-sample of four students was selected for subsequent interviews, which explored in detail the students' understandings of the two concepts.…

Gender Differences in Mathematics Attitudes in Coeducational and Single Sex Secondary Education

ERIC Educational Resources Information Center

Lee, Kester; Anderson, Judy

2015-01-01

Exploring why more boys than girls continue to study higher levels of mathematics in senior school when there appear to be no gender differences in achievement in earlier years is worthy of investigation. There are potentially many reasons why this occurs including career aspirations, interest, and attitudes. One factor explored in this study was…

The Role of Education in Development of Wisdom

ERIC Educational Resources Information Center

Ambrosi-Randic, Neala; Plavšic, Marlena

2015-01-01

In order to explore the potential role of education in wisdom development two independent studies were done. The main goal of the first study was focused on exploring some aspects of implicit theories of wisdom. For the purpose of this research authors have constructed The "Questionnaire on Wisdom" and applied it on a sample of 259…

African American Men, Identity, and Participation in Adult Basic Education and Literacy Programs. Research Brief #6

ERIC Educational Resources Information Center

Drayton, Brendaly; Prins, Esther

2011-01-01

Although the national graduation rate for African American males is only 47% (Schott Foundation for Public Education, 2010), few studies have explored their experiences in adult basic and literacy education (ABEL) programs. This study draws on prior research to explore the relationship between literacy and identity and its potential for…

Complementary Relationships between Traditional Media and Health Apps among American College Students

ERIC Educational Resources Information Center

Cho, Jaehee; Lee, H. Erin; Quinlan, Margaret

2015-01-01

Objective: This study explored the potential relationships between existing media and health apps for health information among college students. Participants: This study collected and analyzed a total of 408 surveys from students of 7 universities across the United States. Methods: In order to explore the research questions and test the…

Social Media's Use in Postgraduate Students' Decision-Making Journey: An Exploratory Study

ERIC Educational Resources Information Center

Galan, Mianda; Lawley, Meredith; Clements, Michael

2015-01-01

Universities globally are showing increased interest in the potential of social media as a marketing recruitment tool. This paper explores how and why potential postgraduate business students looking to study internationally use social media in their educational decision-making process. Due to a lack of existing research, this study adopted an…

Studying Language Learning Opportunities Afforded by a Collaborative CALL Task

ERIC Educational Resources Information Center

Leahy, Christine

2016-01-01

This research study explores the learning potential of a computer-assisted language learning (CALL) activity. Research suggests that the dual emphasis on content development and language accuracy, as well as the complexity of L2 production in natural settings, can potentially create cognitive overload. This study poses the question whether, and…

Ex Ante Research Explored: Numbers, Types and Use of Ex Ante Policy Studies by the Dutch Government

ERIC Educational Resources Information Center

Haarhuis, Carolien Maria Klein; Smit, Monika

2017-01-01

Ex ante research can contribute to evidence-informed policies. In this article, we explore numbers and types of ex ante studies as well as their use. First, we took stock of a potentially wide range of ex ante studies published by the Dutch government between 2005 and 2011, applying a systematic approach. Though unevenly distributed across…

Applications of pain-related evoked potentials and short-latency somatosensory evoked potentials in acupuncture research: a narrative review.

PubMed

Lin, Chi; Ma, Liangxiao; Zhu, Shipeng; Hu, Nijuan; Wang, Pei; Zhang, Peng; Qi, Dandan; Hao, Jie; Li, Jing; Xin, Siyuan; Zhu, Jiang

2015-10-01

To review and discuss the Chinese and English literature on the use of pain-related evoked potentials (PREP) and short-latency somatosensory EP (SLSEP) in acupuncture research. China National Knowledge Infrastructure Database and MEDLINE were searched for the following key words: acupuncture and PREP or SLSEP. Thirty-seven articles were included in the review. Researchers usually use PREPs to study the analgesic effect of acupuncture, observe influential factors, or for mechanistic exploration. In the SLSEP studies, researchers focused on response characteristics of acupuncture, acupoint specificity, and influential factors of the treatment. There were some problems with the study design and conclusions. Researchers could use PREP and SLSEP to objectively validate the effects of acupuncture and explore its mechanisms using nerve electrophysiology. Further studies can benefit from observing more acupoints' effects using PREPs or SLSEPs and investigating the placebo effect of acupuncture.

Measuring learning potential in people with schizophrenia: A comparison of two tasks.

PubMed

Rempfer, Melisa V; McDowd, Joan M; Brown, Catana E

2017-12-01

Learning potential measures utilize dynamic assessment methods to capture performance changes following training on a cognitive task. Learning potential has been explored in schizophrenia research as a predictor of functional outcome and there have been calls for psychometric development in this area. Because the majority of learning potential studies have utilized the Wisconsin Card Sorting Test (WCST), we extended this work using a novel measure, the Rey Osterrieth Complex Figure Test (ROCFT). This study had the following aims: 1) to examine relationships among different learning potential indices for two dynamic assessment tasks, 2) to examine the association between WCST and ROCFT learning potential measures, and 3) to address concurrent validity with a performance-based measure of functioning (Test of Grocery Shopping Skills; TOGSS). Eighty-one adults with schizophrenia or schizoaffective disorder completed WCST and ROCFT learning measures and the TOGSS. Results indicated the various learning potential computational indices are intercorrelated and, similar to other studies, we found support for regression residuals and post-test scores as optimal indices. Further, we found modest relationships between the two learning potential measures and the TOGSS. These findings suggest learning potential includes both general and task-specific constructs but future research is needed to further explore this question. Copyright © 2017 Elsevier B.V. All rights reserved.

A Systems Approach to Identifying Exploration and Development Opportunities in the Illinois Basin: Digital Portifolio of Plays in Underexplored Lower Paleozoic Rocks [Part 1 of 2

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

Seyler, Beverly; Harris, David; Keith, Brian

2008-06-30

This study examined petroleum occurrence in Ordovician, Silurian and Devonian reservoirs in the Illinois Basin. Results from this project show that there is excellent potential for additional discovery of petroleum reservoirs in these formations. Numerous exploration targets and exploration strategies were identified that can be used to increase production from these underexplored strata. Some of the challenges to exploration of deeper strata include the lack of subsurface data, lack of understanding of regional facies changes, lack of understanding the role of diagenetic alteration in developing reservoir porosity and permeability, the shifting of structural closures with depth, overlooking potential producing horizons,more » and under utilization of 3D seismic techniques. This study has shown many areas are prospective for additional discoveries in lower Paleozoic strata in the Illinois Basin. This project implemented a systematic basin analysis approach that is expected to encourage exploration for petroleum in lower Paleozoic rocks of the Illinois Basin. The study has compiled and presented a broad base of information and knowledge needed by independent oil companies to pursue the development of exploration prospects in overlooked, deeper play horizons in the Illinois Basin. Available geologic data relevant for the exploration and development of petroleum reservoirs in the Illinois Basin was analyzed and assimilated into a coherent, easily accessible digital play portfolio. The primary focus of this project was on case studies of existing reservoirs in Devonian, Silurian, and Ordovician strata and the application of knowledge gained to future exploration and development in these underexplored strata of the Illinois Basin. In addition, a review of published reports and exploration in the New Albany Shale Group, a Devonian black shale source rock, in Illinois was completed due to the recent increased interest in Devonian black shales across the United States. The New Albany Shale is regarded as the source rock for petroleum in Silurian and younger strata in the Illinois Basin and has potential as a petroleum reservoir. Field studies of reservoirs in Devonian strata such as the Geneva Dolomite, Dutch Creek Sandstone and Grassy knob Chert suggest that there is much additional potential for expanding these plays beyond their current limits. These studies also suggest the potential for the discovery of additional plays using stratigraphic concepts to develop a subcrop play on the subkaskaskia unconformity boundary that separates lower Devonian strata from middle Devonian strata in portions of the basin. The lateral transition from Geneva Dolomite to Dutch Creek Sandstone also offers an avenue for developing exploration strategies in middle Devonian strata. Study of lower Devonian strata in the Sesser Oil Field and the region surrounding the field shows opportunities for development of a subcrop play where lower Devonian strata unconformably overlie Silurian strata. Field studies of Silurian reservoirs along the Sangamon Arch show that opportunities exist for overlooked pays in areas where wells do not penetrate deep enough to test all reservoir intervals in Niagaran rocks. Mapping of Silurian reservoirs in the Mt. Auburn trend along the Sangamon Arch shows that porous reservoir rock grades laterally to non-reservoir facies and several reservoir intervals may be encountered in the Silurian with numerous exploration wells testing only the uppermost reservoir intervals. Mapping of the Ordovician Trenton and shallower strata at Centralia Field show that the crest of the anticline shifted through geologic time. This study illustrates that the axes of anticlines may shift with depth and shallow structure maps may not accurately predict structurally favorable reservoir locations at depth.« less

Exploring Primary Children's Views and Experiences of the School Ground: The Case of a Greek School

ERIC Educational Resources Information Center

Christidou, Vasilia; Tsevreni, Irida; Epitropou, Maria; Kittas, Constantinos

2013-01-01

The present study explores the use of a conventional school ground of a primary school and its potential as a space for creative play and environmental learning. Children's play behavior and views of the school ground are explored, as well as their vision for its improvement. The research constitutes part of a wider school ground project and was…

NASA SSERVI Contributions to Lunar Science and Exploration

NASA Technical Reports Server (NTRS)

Pendleton, Yvonne J.

2015-01-01

NASA's Solar System Exploration Research Virtual Institute (SSERVI) represents a close collaboration between science, technology and exploration that will enable deeper understanding of the Moon and other airless bodies as we move further out of low-Earth orbit. The new Solar System Exploration Research Virtual Institute (SSERVI) will focus on the scientific aspects of exploration as they pertain to the Moon, Near Earth Asteroids (NEAs) and the moons of Mars. The Institute focuses on interdisciplinary, exploration-related science centered around all airless bodies targeted as potential human destinations. Areas of study reported here will represent the broad spectrum of lunar, NEA, and Martian moon sciences encompassing investigations of the surface, interior, exosphere, and near-space environments as well as science uniquely enabled from these bodies. We will provide a detailed look at research being conducted by each of the 9 domestic US teams as well as our 7 international partners. The research profile of the Institute integrates investigations of plasma physics, geology/geochemistry, technology integration, solar system origins/evolution, regolith geotechnical properties, analogues, volatiles, ISRU and exploration potential of the target bodies.

Carers' Beliefs about Counselling: A Community Participatory Study in Wales

ERIC Educational Resources Information Center

Waters, Rachel; Spong, Sheila; Morgan, Janet; Kemp-Philp, Chris

2018-01-01

This interpretivist community participatory study explores carers' beliefs about the potential usefulness of counselling in relation to the caring role. Twenty semi-structured interviews with carers were transcribed and analysed thematically. All participants thought counselling could potentially be helpful to carers, but their ideas about the…

Clay nanoparticles for regenerative medicine and biomaterial design: A review of clay bioactivity.

PubMed

Mousa, Mohamed; Evans, Nicholas D; Oreffo, Richard O C; Dawson, Jonathan I

2018-03-01

Clay nanoparticles, composites and hydrogels are emerging as a new class of biomaterial with exciting potential for tissue engineering and regenerative medicine applications. Clay particles have been extensively explored in polymeric nanocomposites for self-assembly and enhanced mechanical properties as well as for their potential as drug delivery modifiers. In recent years, a cluster of studies have explored cellular interactions with clay nanoparticles alone or in combination with polymeric matrices. These pioneering studies have suggested new and unforeseen utility for certain clays as bioactive additives able to enhance cellular functions including adhesion, proliferation and differentiation, most notably for osteogenesis. This review examines the recent literature describing the potential effects of clay-based nanomaterials on cell function and examines the potential role of key clay physicochemical properties in influencing such interactions and their exciting possibilities for regenerative medicine. Copyright © 2018 Elsevier Ltd. All rights reserved.

A systematic study of chemogenomics of carbohydrates.

PubMed

Gu, Jiangyong; Luo, Fang; Chen, Lirong; Yuan, Gu; Xu, Xiaojie

2014-03-04

Chemogenomics focuses on the interactions between biologically active molecules and protein targets for drug discovery. Carbohydrates are the most abundant compounds in natural products. Compared with other drugs, the carbohydrate drugs show weaker side effects. Searching for multi-target carbohydrate drugs can be regarded as a solution to improve therapeutic efficacy and safety. In this work, we collected 60 344 carbohydrates from the Universal Natural Products Database (UNPD) and explored the chemical space of carbohydrates by principal component analysis. We found that there is a large quantity of potential lead compounds among carbohydrates. Then we explored the potential of carbohydrates in drug discovery by using a network-based multi-target computational approach. All carbohydrates were docked to 2389 target proteins. The most potential carbohydrates for drug discovery and their indications were predicted based on a docking score-weighted prediction model. We also explored the interactions between carbohydrates and target proteins to find the pathological networks, potential drug candidates and new indications.

Becoming a Place-Responsive Practitioner: Exploration of an Alternative Conception of "Friluftsliv" in the Swedish Physical Education and Health Curriculum

ERIC Educational Resources Information Center

Mikaels, Jonas

2018-01-01

This study explores the educational potential of a place-responsive pedagogy to teaching and learning in "friluftsliv" within the Swedish physical education and health (PEH) curriculum. The study draws on qualitative empirical materials from a yearlong research project, together with a group of high school PEH teachers working in seventh…

Integrated Surface Power Strategy for Mars

NASA Technical Reports Server (NTRS)

Rucker, Michelle

2015-01-01

A National Aeronautics and Space Administration (NASA) study team evaluated surface power needs for a conceptual crewed 500-day Mars mission. This study had four goals: 1. Determine estimated surface power needed to support the reference mission; 2. Explore alternatives to minimize landed power system mass; 3. Explore alternatives to minimize Mars Lander power self-sufficiency burden; and 4. Explore alternatives to minimize power system handling and surface transportation mass. The study team concluded that Mars Ascent Vehicle (MAV) oxygen propellant production drives the overall surface power needed for the reference mission. Switching to multiple, small Kilopower fission systems can potentially save four to eight metric tons of landed mass, as compared to a single, large Fission Surface Power (FSP) concept. Breaking the power system up into modular packages creates new operational opportunities, with benefits ranging from reduced lander self-sufficiency for power, to extending the exploration distance from a single landing site. Although a large FSP trades well for operational complexity, a modular approach potentially allows Program Managers more flexibility to absorb late mission changes with less schedule or mass risk, better supports small precursor missions, and allows a program to slowly build up mission capability over time. A number of Kilopower disadvantages-and mitigation strategies-were also explored.

Lunar Dust: Characterization and Mitigation

NASA Technical Reports Server (NTRS)

Hyatt. Mark J.; Feighery, John

2007-01-01

Lunar dust is a ubiquitous phenomenon which must be explicitly addressed during upcoming human lunar exploration missions. Near term plans to revisit the moon as a stepping stone for further exploration of Mars, and beyond, places a primary emphasis on characterization and mitigation of lunar dust. Comprised of regolith particles ranging in size from tens of nanometers to microns, lunar dust is a manifestation of the complex interaction of the lunar soil with multiple mechanical, electrical, and gravitational effects. The environmental and anthropogenic factors effecting the perturbation, transport, and deposition of lunar dust must be studied in order to mitigate it's potentially harmful effects on exploration systems. The same hold true for assessing the risk it may pose for toxicological health problems if inhaled. This paper presents the current perspective and implementation of dust knowledge management and integration, and mitigation technology development activities within NASA's Exploration Technology Development Program. This work is presented within the context of the Constellation Program's Integrated Lunar Dust Management Strategy. This work further outlines the scientific basis for lunar dust behavior, it's characteristics and potential effects, and surveys several potential strategies for its control and mitigation both for lunar surface operations and within the working volumes of a lunar outpost. The paper also presents a perspective on lessons learned from Apollo and forensics engineering studies of Apollo hardware.

Surface penetrators for planetary exploration: Science rationale and development program

NASA Technical Reports Server (NTRS)

Murphy, J. P.; Reynolds, R. T.; Blanchard, M. B.; Clanton, U. S.

1981-01-01

Work on penetrators for planetary exploration is summarized. In particular, potential missions, including those to Mars, Mercury, the Galilean satellites, comets, and asteroids are described. A baseline penetrator design for the Mars mission is included, as well as potential instruments and their status in development. Penetration tests in soft soil and basalt to study material eroded from the penetrator; changes in the structure, composition, and physical properties of the impacted soil; seismic coupling; and penetrator deflection caused by impacting rocks, are described. Results of subsystem studies and tests are given for design of entry decelerators, high-g components, thermal control, data acquisition, and umbilical cable deployment.

Business Services' Impact on Student Retention: Exploring Student and Administrator Perceptions

ERIC Educational Resources Information Center

Hassabis, Haris

2014-01-01

High student attrition rates for first-year university students affect the financial and long-term sustainability of institutions. Previous researchers failed to provide workable solutions to improving student retention. This study was an exploration of students' and administrators' perceptions of business services and their potential impact on…

Harnessing Distributed Musical Expertise through Edublogging

ERIC Educational Resources Information Center

Chong, Eddy K. M.

2008-01-01

The pedagogical potential of edublogging--blogging used as an educational tool and strategy--in music teaching has been explored in two previous studies; a third exploration has now been conducted. Recognising the social and contextual dimensions of knowledge and of the learning process, I reflect on all three experiences from a distributed…

Literacy Inquiry and Pedagogy through a Photographic Lens

ERIC Educational Resources Information Center

Cappello, Marva; Hollingsworth, Sandra

2008-01-01

This paper explores the potential of photography for teaching, learning, and studying literacy in elementary school classrooms. We examine the ways shifting between communication systems (photography, oral language and writing) impacts students' ability to problem solve and create rich texts. Specifically, we explore the roles photography plays in…

Collaborative Learning in Online Courses: Exploring Students' Perceptions

ERIC Educational Resources Information Center

Faja, Silvana

2013-01-01

Virtual collaborative activities have the potential to keep students engaged, create a sense of community in online courses and allow them to experience and practice virtual teamwork skills. This study presents an attempt to explore students' perceptions of online collaborative learning involving both process and product oriented activities. The…

Promoting Dialogue or Hegemonic Practice? Power Issues in Telecollaboration

ERIC Educational Resources Information Center

Helm, Francesca; Guth, Sarah; Farrah, Mohammed

2012-01-01

This qualitative study explores the impact of potential linguistic, technical and educational hegemonies on the learning outcomes for English language students in Hebron, Palestine, and Padova, Italy, who were involved in the Soliya Connect Program, a telecollaboration project developed to explore critical issues that divide the "West"…

Looking in a Science Classroom: Exploring Possibilities of Creative Cultural Divergence in Science Teaching and Learning

ERIC Educational Resources Information Center

Baron, Alex; Chen, Hsiao-Lan Sharon

2012-01-01

Worldwide proliferation of pedagogical innovations creates expanding potential in the field of science education. While some teachers effectively improve students' scientific learning, others struggle to achieve desirable student outcomes. This study explores a Taiwanese science teacher's ability to effectively enhance her students' science…

Narrative Analysis: Exploring Experiences of Observational Drawing and Dyspraxia

ERIC Educational Resources Information Center

Penketh, Claire

2011-01-01

Narrative analysis offers a powerful and accessible means of understanding the ways in which individuals experience learning across a range of educational sites. Drawing on a recent study that explored "dyspraxic" pupils' experiences of drawing from observation, this paper offers an insight into the potential that narrative analysis has…

Digital Downsides: Exploring University Students' Negative Engagements with Digital Technology

ERIC Educational Resources Information Center

Selwyn, Neil

2016-01-01

Digital technologies are now an integral feature of university study. As such, academic research has tended to concentrate on the potential of digital technologies to support, extend and even "enhance" student learning. This paper, in contrast, explores the rather more messy realities of students' engagements with digital technology. In…

Exploring Factors That Influence Quality Literature Circles

ERIC Educational Resources Information Center

Young, Chase; Mohr, Kathleen A. J.

2018-01-01

Research indicates that literature circles are an authentic means for literacy development that students typically enjoy. To better understand the potential value and to add to the research base regarding literature circles, this study, involving 17 fourth graders, explores factors that may influence the quality of literature discussions,…

Benchmarking Potential Factors Leading to Education Quality: A Study of Cambodian Higher Education

ERIC Educational Resources Information Center

Chen, Ching-Yaw; Sok, Phyra; Sok, Keomony

2007-01-01

Purpose: To study the quality in higher education in Cambodia and explore the potential factors leading to quality in Cambodian higher education. Design/methodology/approach: Five main factors that were deemed relevant in providing quality in Cambodian higher education were proposed: academic curriculum and extra-curricular activities, teachers'…

YouTube: Educational Potentials and Pitfalls

ERIC Educational Resources Information Center

Jones, Troy; Cuthrell, Kristen

2011-01-01

The instructional potential of video technology in the classroom is promising, especially in light of the 21st Century Learning Framework (Siegle, 2009). Studies show positive gains in student outcomes as a result of the integration of video technology in instruction. This article explores potential uses of YouTube as an instructional aid in…

GeoVision Exploration Task Force Report

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

Doughty, Christine; Dobson, Patrick F.; Wall, Anna

The GeoVision study effort included ground-breaking, detailed research on current and future market conditions and geothermal technologies in order to forecast and quantify the electric and non-electric deployment potentials under a range of scenarios, in addition to their impacts on the Nation’s jobs, economy and environment. Coordinated by the U.S. Department of Energy’s (DOE’s) Geothermal Technologies Office (GTO), the GeoVision study development relied on the collection, modeling, and analysis of robust datasets through seven national laboratory partners, which were organized into eight technical Task Force groups. The purpose of this report is to provide a central repository for the researchmore » conducted by the Exploration Task Force. The Exploration Task Force consists of four individuals representing three national laboratories: Patrick Dobson (task lead) and Christine Doughty of Lawrence Berkeley National Laboratory, Anna Wall of National Renewable Energy Laboratory, Travis McLing of Idaho National Laboratory, and Chester Weiss of Sandia National Laboratories. As part of the GeoVision analysis, our team conducted extensive scientific and financial analyses on a number of topics related to current and future geothermal exploration methods. The GeoVision Exploration Task Force complements the drilling and resource technology investigations conducted as part of the Reservoir Maintenance and Development Task Force. The Exploration Task Force however has focused primarily on early stage R&D technologies in exploration and confirmation drilling, along with an evaluation of geothermal financing challenges and assumptions, and innovative “blue-sky” technologies. This research was used to develop geothermal resource supply curves (through the use of GETEM) for use in the ReEDS capacity expansion modeling that determines geothermal technology deployment potential. It also catalogues and explores the large array of early-stage R&D technologies with the potential to dramatically reduce exploration and geothermal development costs, forming the basis of the GeoVision Technology Improvement (TI) scenario. These modeling topics are covered in detail in Potential to Penetration task force report. Most of the research contained herein has been published in peer-reviewed papers or conference proceedings and are cited and referenced accordingly. The sections that follow provide a central repository for all of the research findings of the Exploration and Confirmation Task Force. In summary, it provides a comprehensive discussion of Engineered Geothermal Systems (EGS) and associated technology challenges, the risks and costs of conducting geothermal exploration, a review of existing government efforts to date in advancing early-stage R&D in both exploration and EGS technologies, as well as a discussion of promising and innovative technologies and implementation of blue-sky concepts that could significantly reduce costs, lower risks, and shorten the time needed to explore and develop geothermal resources of all types.« less

The Tension in Pre-Service Teachers' Explorations of Tablet Technology for Literacy Purposes: Positive Beliefs and Practical Shortcomings

ERIC Educational Resources Information Center

Al-Hazza, Tami Craft

2017-01-01

This mixed-method study sought to examine the experiences of a group of 21 pre-service teachers in a collegiate literacy education class which required a semester-long exploration of the potential of tablets to enhance the reading skills of youngsters. The quantitative portions of the study identified the participants' daily use habits of…

WMA pavements in Oklahoma : moisture damage and performance issues.

DOT National Transportation Integrated Search

2013-08-01

This study explored the potential effects of using different Warm Mix Asphalt (WMA) technologies on the rut, fatigue and moisture-induced damage potential of WMA pavements. This task was pursued in two levels: (i) performance evaluation of WMA and co...

A novel approach to exploring potential interactions among single-nucleotide polymorphisms of inflammation genes in gliomagenesis: an exploratory case-only study.

PubMed

Amirian, E Susan; Scheurer, Michael E; Liu, Yanhong; D'Amelio, Anthony M; Houlston, Richard S; Etzel, Carol J; Shete, Sanjay; Swerdlow, Anthony J; Schoemaker, Minouk J; McKinney, Patricia A; Fleming, Sarah J; Muir, Kenneth R; Lophatananon, Artitaya; Bondy, Melissa L

2011-08-01

Despite extensive research on the topic, glioma etiology remains largely unknown. Exploration of potential interactions between single-nucleotide polymorphisms (SNP) of immune genes is a promising new area of glioma research. The case-only study design is a powerful and efficient design for exploring possible multiplicative interactions between factors that are independent of one another. The purpose of our study was to use this exploratory design to identify potential pair wise SNP-SNP interactions from genes involved in several different immune-related pathways for investigation in future studies. The study population consisted of two case groups: 1,224 histologic confirmed, non-Hispanic white glioma cases from the United States and a validation population of 634 glioma cases from the United Kingdom. Polytomous logistic regression, in which one SNP was coded as the outcome and the other SNP was included as the exposure, was utilized to calculate the ORs of the likelihood of cases simultaneously having the variant alleles of two different SNPs. Potential interactions were examined only between SNPs located in different genes or chromosomes. Using this data mining strategy, we found 396 significant SNP-SNP interactions among polymorphisms of immune-related genes that were present in both the U.S. and U.K. study populations. This exploratory study was conducted for the purpose of hypothesis generation, and thus has provided several new hypotheses that can be tested using traditional case-control study designs to obtain estimates of risk. This is the first study, to our knowledge, to take this novel approach to identifying SNP-SNP interactions relevant to glioma etiology. ©2011 AACR.

Midlatitude Ice-Rich Ground on Mars: An Important Target for Science and In Situ Resource Utilization on Human Missions

NASA Technical Reports Server (NTRS)

Stoker, Carol; Heldmann, Jennifer

2015-01-01

The region of ROI is characterized by proven presence of near surface ground ice and numerous periglacial features. Midlatitude ground ice on Mars is of significant scientific interest for understanding the history and evolution of ice stability on Mars, the impact that changes in insolation produced by variations in Mars’ orbital parameters has on the regions climate, and could provide human exploration with a reliable and plentiful in situ resource. For both science and exploration, assessing the astrobiological potential of the ice is important in terms of (1) understanding the potential for life on Mars and (2) evaluating the presence of possible biohazards in advance of human exploration. Heldmann et al. (2014) studied locations on Mars in the Amazonis Planitia region where near surface ground ice was exposed by new impact craters (Byrne et al. 2009). The study examined whether sites in this region were suitable for human exploration including reviewing the evidence for midlatitude ground ice, discussing the possible explanations for its occurrence, assessing its potential habitability for modern life, and evaluating the resource potential. They systematically analyzed remote-sensing data sets to identify a viable landing site. Five sites where ground ice was exposed were examined with HiRise imaging and were classified according to (1) presence of polygons as a proxy for subsurface ice, (2) presence and abundance of rough topographic obstacles (e.g., large cracks, cliffs, uneven topography), (3) rock density, (4) presence and abundance of large boulders, and (5) presence of craters. A suitable landing site was found having ground ice at only 0.15m depth, and no landing site hazards within a 25 km landing ellipse. This paper presents results of that study and examines the relevance of this ROI to the workshop goals.

Food Practices and School Connectedness: A Whole-School Approach

ERIC Educational Resources Information Center

Neely, Eva; Walton, Mat; Stephens, Christine

2016-01-01

Purpose: The health-promoting schools (HPSs) framework has emerged as a promising model for promoting school connectedness in the school setting. The purpose of this paper is to explore the potential for food practices to promote school connectedness within a HPSs framework. Design/methodology/approach: This study explores food practices within a…

Exploring How Girls Navigate Their Embodied Identities in Physical Education

ERIC Educational Resources Information Center

Fisette, Jennifer L.

2011-01-01

Background: Educating adolescent girls about their bodies provides girls with the opportunity to make meaning of their embodied identities for themselves. Knowledge of, and understanding of, embodiment has the potential for adolescent girls to be empowered within the physical education context. Purpose: The purpose of this study was to explore how…

Exploring Game Experiences and Game Leadership in Massively Multiplayer Online Role-Playing Games

ERIC Educational Resources Information Center

Jang, YeiBeech; Ryu, SeoungHo

2011-01-01

This study explored the in-game experiences of massively multiplayer online role-playing game (MMORPG) players focusing on game leadership and offline leadership. MMORPGs have enormous potential to provide gameplayers with rich social experiences through various interactions along with social activities such as joining a game community, team play…

Exploring 21st Century Literacy through Writing: Urban Educators' Use of Digital Storytelling with Struggling Writers

ERIC Educational Resources Information Center

Phillips, Sarah A.

2017-01-01

This qualitative study explored the lived experiences of urban educators' integration of digital storytelling into supporting instruction, developing students' writing potential, and engaging students that struggle with writing literacy. Interviews, focus group interviews, review of documents, and audio-visual resources were the sources of data…

Constructing Identities at the Intersections: An Autoethnographic Exploration of Multiple Dimensions of Identity

ERIC Educational Resources Information Center

Jones, Susan R.

2009-01-01

The purpose of this article is to present the results of an autoethnographic study designed to investigate the complexities of identity development among a diverse group of eight participants and to use results to explore potential relationships between self-authorship and intersecting identities. Data was collected via personal autoethnographic…

Peer Reviewers Learn from Giving Comments

ERIC Educational Resources Information Center

Cho, Young Hoan; Cho, Kwangsu

2011-01-01

Research on peer reviewing has revealed that comments received from peer reviewers are helpful when it comes to making revisions in an individual's writing, but the role of providing comments to peer writers has been little explored despite the potential value of such research. In this study, we explored how student reviewers learn by reviewing…

Mapping the Road to Instructional Coach Effectiveness: Exploring the Relationship between Instructional Coaching Efficacy, Practices, and Outcomes

ERIC Educational Resources Information Center

McCrary, Marsha

2011-01-01

Despite the presence and potential impact of instructional coaches, many schools are not experiencing significant improvements in teachers' practices or student achievement. In gaining more insight into forces that impact instructional coach effectiveness, this study (a) explored the relationship between sources of instructional coaching efficacy…

What Can the Study of Genetics Offer to Educators?

ERIC Educational Resources Information Center

Thomas, Michael S. C.; Kovas, Yulia; Meaburn, Emma L.; Tolmie, Andrew

2015-01-01

This article explores the potential contribution of modern genetic methods and findings to education. It is familiar to hear that the "gene" for this or that behavior has been discovered, or that certain skills are "highly heritable." Can this help educators? To explore this question, we describe the methods used to relate…

Exploring School- and Home-Related Protective Factors for Economically Disadvantaged Middle School Students

ERIC Educational Resources Information Center

Okilwa, Nathern S. A.

2016-01-01

This study explored the experiences of middle school students, particularly focusing on the academic achievement of economically disadvantaged students. For low SES middle school students, the known cumulative effects of poverty coupled with school transition and early adolescence development heighten the potential risks for school failure. By…

Women's Health-Enhancing Physical Activity and Eudaimonic Well Being

ERIC Educational Resources Information Center

Ferguson, Leah J.; Kowalski, Kent C.; Mack, Diane E.; Wilson, Philip M.; Crocker, Peter R. E.

2012-01-01

In this study, we explored the role of health-enhancing physical activity (HEPA; Miilunpalo, 2001) in women's eudaimonic well being (i.e., psychological flourishing at one's maximal potential; Ryff, 1989). We used a quantitative approach (N = 349) to explore the relationship between HEPA and eudaimonic well being. While HEPA was not related to…

Dynamic and Interactive Mathematics Learning Environments: The Case of Teaching the Limit Concept

ERIC Educational Resources Information Center

Martinovic, Dragana; Karadag, Zekeriya

2012-01-01

This theoretical study is an attempt to explore the potential of the dynamic and interactive mathematics learning environments (DIMLE) in relation to the technological pedagogical content knowledge (TPACK) framework. DIMLE are developed with intent to support learning mathematics through free exploration in a less constrained environment. A…

Exploring Genetic and Environmental Effects in Dysphonia: A Twin Study

ERIC Educational Resources Information Center

Simberg, Susanna; Santtila, Pekka; Soveri, Anna; Varjonen, Markus; Sala, Eeva; Sandnabba, N. Kenneth

2009-01-01

Purpose: To explore the existence of genetic effects as well as the interaction between potential genetic effects and a voice-demanding occupation on dysphonia. Method: One thousand seven hundred and twenty-eight Finnish twins (555 male; 1,173 female) born between 1961 and 1989 completed a questionnaire concerning vocal symptoms and occupation.…

Exploring Potentialities for Cosmopolitan Learning in Swedish Teacher Education

ERIC Educational Resources Information Center

Scheja, Max

2015-01-01

This study aimed to explore student teachers' experiences of learning in teacher education, with a focus on how students describe their ways of thinking about their own learning in relation to their future professional role as teachers and how these descriptions relate to emerging cosmopolitan visions for student learning in teacher education.…

Childhood Sexual Abuse in Males and Subsequent Risky Sexual Behavior: A Potential Alcohol-Use Pathway

ERIC Educational Resources Information Center

Schraufnagel, Trevor J.; Davis, Kelly Cue; George, William H.; Norris, Jeanette

2010-01-01

Objective: Childhood sexual abuse (CSA) among boys has been associated with a variety of subsequent maladaptive behaviors. This study explored a potential connection between CSA and an increased likelihood of risky sexual behavior in adulthood. Further, the study examined whether or not alcohol use may contribute to this relationship. Method: As…

Race and Research Methods Anxiety in an Undergraduate Sample: The Potential Effects of Self-Perception

ERIC Educational Resources Information Center

Eckberg, Deborah A.

2015-01-01

This study explores race as a potential predictor of research methods anxiety among a sample of undergraduates. While differences in academic achievement based on race and ethnicity have been well documented, few studies have examined racial differences in anxiety with regard to specific subject matter in undergraduate curricula. This exploratory…

Does the Eye of the Beholder Construct Beauty? Contributions of Self-Efficacy Factors to Divergent Thinking Traits

ERIC Educational Resources Information Center

Kharkhurin, Anatoliy V.

2017-01-01

The study initiated a project exploring a contribution of creative perception to creative behavior. This study investigated the factors in creative self-perception contributing to creative potential. Creative potential was operationalized as divergent thinking and measured by the Abbreviated Torrance Test for Adults. Creative self-perception was…

Graphic Presentation: An Empirical Examination of the Graphic Novel Approach to Communicate Business Concepts

ERIC Educational Resources Information Center

Short, Jeremy C.; Randolph-Seng, Brandon; McKenny, Aaron F.

2013-01-01

Graphic novels have been increasingly incorporated into business communication forums. Despite potential benefits, little research has examined the merits of the graphic novel approach. In response, we engage in a two-study approach. Study 1 explores the potential of graphic novels to affect learning outcomes and finds that the graphic novel was…

Exploring Item Characteristics That Are Related to the Difficulty of TOEFL Dialogue Items. Research Reports. RR-79. RR-04-11

ERIC Educational Resources Information Center

Kostin, Irene

2004-01-01

The purpose of this study is to explore the relationship between a set of item characteristics and the difficulty of TOEFL[R] dialogue items. Identifying characteristics that are related to item difficulty has the potential to improve the efficiency of the item-writing process The study employed 365 TOEFL dialogue items, which were coded on 49…

The Potential of a Mobile Group Blog to Support Cultural Learning among Overseas Students

ERIC Educational Resources Information Center

Shao, Yinjuan; Crook, Charles

2015-01-01

We explored the use of mobile social software, in the form of a mobile group blog, to assist cultural learning. The potential of using this technology for cultural adaptation among overseas students was examined as those students adapted to the everyday life of studying abroad. Two pilot studies and a successful field study of a mobile group blog…

Lunar Dust Mitigation Technology Development

NASA Technical Reports Server (NTRS)

Hyatt, Mark J.; Deluane, Paul B.

2008-01-01

NASA s plans for implementing the Vision for Space Exploration include returning to the moon as a stepping stone for further exploration of Mars, and beyond. Dust on the lunar surface has a ubiquitous presence which must be explicitly addressed during upcoming human lunar exploration missions. While the operational challenges attributable to dust during the Apollo missions did not prove critical, the comparatively long duration of impending missions presents a different challenge. Near term plans to revisit the moon places a primary emphasis on characterization and mitigation of lunar dust. Comprised of regolith particles ranging in size from tens of nanometers to microns, lunar dust is a manifestation of the complex interaction of the lunar soil with multiple mechanical, electrical, and gravitational effects. The environmental and anthropogenic factors effecting the perturbation, transport, and deposition of lunar dust must be studied in order to mitigate it s potentially harmful effects on exploration systems. This paper presents the current perspective and implementation of dust knowledge management and integration, and mitigation technology development activities within NASA s Exploration Technology Development Program. This work is presented within the context of the Constellation Program s Integrated Lunar Dust Management Strategy. The Lunar Dust Mitigation Technology Development project has been implemented within the ETDP. Project scope and plans will be presented, along with a a perspective on lessons learned from Apollo and forensics engineering studies of Apollo hardware. This paper further outlines the scientific basis for lunar dust behavior, it s characteristics and potential effects, and surveys several potential strategies for its control and mitigation both for lunar surface operations and within the working volumes of a lunar outpost.

Determinants of Perceived Stress in Individuals with Obesity: Exploring the Relationship of Potentially Obesity-Related Factors and Perceived Stress.

PubMed

Junne, Florian; Ziser, Katrin; Giel, Katrin Elisabeth; Schag, Kathrin; Skoda, Eva; Mack, Isabelle; Niess, Andreas; Zipfel, Stephan; Teufel, Martin

2017-01-01

Associations of specific types of stress with increased food intake and subsequent weight gain have been demonstrated in animal models as well as in experimental and epidemiological studies on humans. This study explores the research question of to what extent potentially obesity-related factors determine perceived stress in individuals with obesity. N = 547 individuals with obesity participated in a cross-sectional study assessing perceived stress as the outcome variable and potential determinants of stress related to obesity. Based on the available evidence, a five factorial model of 'obesity-related obesogenic stressors' was hypothesized, including the dimensions, 'drive for thinness', 'impulse regulation', 'ineffectiveness', 'social insecurity', and 'body dissatisfaction'. The model was tested using multiple linear regression analyses. The five factorial model of 'potentially obesity-related stressors' resulted in a total variance explanation of adjusted R² = 0.616 for males and adjusted R² = 0.595 for females for perceived stress. The relative variance contribution of the five included factors differed substantially for the two sexes. The findings of this cross-sectional study support the hypothesized, potentially obesity-related factors: 'drive for thinness', 'impulse regulation', 'ineffectiveness', 'social insecurity', and 'body dissatisfaction' as relevant determinants of perceived stress in individuals with obesity. © 2017 The Author(s) Published by S. Karger GmbH, Freiburg.

Exploring the Mechanisms of Ecological Land Change Based on the Spatial Autoregressive Model: A Case Study of the Poyang Lake Eco-Economic Zone, China

PubMed Central

Xie, Hualin; Liu, Zhifei; Wang, Peng; Liu, Guiying; Lu, Fucai

2013-01-01

Ecological land is one of the key resources and conditions for the survival of humans because it can provide ecosystem services and is particularly important to public health and safety. It is extremely valuable for effective ecological management to explore the evolution mechanisms of ecological land. Based on spatial statistical analyses, we explored the spatial disparities and primary potential drivers of ecological land change in the Poyang Lake Eco-economic Zone of China. The results demonstrated that the global Moran’s I value is 0.1646 during the 1990 to 2005 time period and indicated significant positive spatial correlation (p < 0.05). The results also imply that the clustering trend of ecological land changes weakened in the study area. Some potential driving forces were identified by applying the spatial autoregressive model in this study. The results demonstrated that the higher economic development level and industrialization rate were the main drivers for the faster change of ecological land in the study area. This study also tested the superiority of the spatial autoregressive model to study the mechanisms of ecological land change by comparing it with the traditional linear regressive model. PMID:24384778

Comparing Beliefs and Intentions about the Importance of Teacher-Child Interactions among Greek and Cypriot Pre-Service Kindergarten Teachers

ERIC Educational Resources Information Center

Sakellariou, Maria; Rentzou, Konstantina

2012-01-01

Though a host of research has explored the association between beliefs and practices, limited research has been undertaken exploring the association between beliefs and intentions. Considering the potentially important influence of teachers' beliefs on their practices, the present study aimed to examine what, if anything, Greek and Cypriot…

Early Childhood Teachers' Psychological Well-Being: Exploring Potential Predictors of Depression, Stress, and Emotional Exhaustion

ERIC Educational Resources Information Center

Jeon, Lieny; Buettner, Cynthia K.; Grant, Ashley A.

2018-01-01

Research Findings: Early childhood teachers' psychological well-being influences the nurturing and learning classroom climate in early care and education as well as children's development. However, less is known about predictors of teachers' psychological well-being in preschool. The purpose of this study was to explore associations between…

Exploring the Potential of WAP Technology in Online Discussion

ERIC Educational Resources Information Center

Lee, Chwee Beng

2004-01-01

The intent of this study is to explore how WAP (wireless application protocol) technology mediates online discussions. The focus of this research is on the implications of WAP technology for online discussions, and the types of discussion topics that are most suitable for WAP-based discussions and the finding of the combination of WAP- and…

"The Last Block of Ice": Trauma Literature in the High School Classroom

ERIC Educational Resources Information Center

Moore, Amber; Begoray, Deborah

2017-01-01

This article explores the potential of using trauma literature in the secondary high school classroom, drawing from a case study that explored grade 10 secondary students' responses to a trauma story. These responses were primarily collected from their digital writing and reveal a number of interesting findings, including the expression of anger…

Coupled influences of topography and wind on wildland fire behaviour

Treesearch

Rodman Linn; Judith Winterkamp; Carleton Edminster; Jonah J. Colman; William S. Smith

2007-01-01

Ten simulations were performed with the HIGRAD/FIRETEC wildfire behaviour model in order to explore its utility in studying wildfire behaviour in inhomogeneous topography. The goal of these simulations is to explore the potential extent of the coupling between the fire, atmosphere, and topography. The ten simulations described in this paper include five different...

Explorations in Teaching Sustainable Design: A Studio Experience in Interior Design/Architecture

ERIC Educational Resources Information Center

Gurel, Meltem O.

2010-01-01

This article argues that a design studio can be a dynamic medium to explore the creative potential of the complexity of sustainability from its technological to social ends. The study seeks to determine the impact of an interior design/architecture studio experience that was initiated to teach diverse meanings of sustainability and to engage the…

Classroom Response Systems: Using Task Technology Fit to Explore Impact Potential

ERIC Educational Resources Information Center

Jones, Kenneth D., II.

2010-01-01

The primary purpose of this study is to determine how students are impacted by the use of Classroom Response System (CRS) technology. This research explores the nature of the outcomes experienced by students and their perceptions on the leading pedagogy and practices for using CRS technology in the classroom. The research is both quantitative and…

Starting Online: Exploring the Use of a Social Networking Site to Facilitate Transition into Higher Education

ERIC Educational Resources Information Center

Knight, John; Rochon, Rebecca

2012-01-01

It has been widely recognised that transition into higher education (HE) can be challenging for incoming students. Literature identifies three main areas where students may benefit from support: social, practical and academic. This paper discusses a case study that explores the potential of a social networking environment to provide support in…

Exploring the MACH Model's Potential as a Metacognitive Tool to Help Undergraduate Students Monitor Their Explanations of Biological Mechanisms

ERIC Educational Resources Information Center

Trujillo, Caleb M.; Anderson, Trevor R.; Pelaez, Nancy J.

2016-01-01

When undergraduate biology students learn to explain biological mechanisms, they face many challenges and may overestimate their understanding of living systems. Previously, we developed the MACH model of four components used by expert biologists to explain mechanisms: Methods, Analogies, Context, and How. This study explores the implementation of…

Symmetry, Contingency, Complexity: Accommodating Uncertainty in Public Relations Theory.

ERIC Educational Resources Information Center

Murphy, Priscilla

2000-01-01

Explores the potential of complexity theory as a unifying theory in public relations, where scholars have recently raised problems involving flux, uncertainty, adaptiveness, and loss of control. Describes specific complexity-based methodologies and their potential for public relations studies. Offers an account of complexity theory, its…

Impact of Diagenesis on Biosignature Preservation Potential in Playa Lake Evaporites of the Verde Formation, Arizona: Implications for Mars Exploration

NASA Astrophysics Data System (ADS)

Shkolyar, S.; Farmer, J. D.

2016-05-01

We studied evaporite subfacies in the Verde Fmn., AZ. We identified diagenetic pathways and assessed how diagenesis affected biosignature preservation potential (BPP) in each. Results revealed eight pathways, each with diverse impacts on BPP.

Therapeutic Potential of Enoxaparin in Lichen Planus: Exploring Reasons for Inconsistent Reports

PubMed Central

Patel, Rahul P.; Shastri, Madhur D.; Ming, Long Chiau; Zaidi, Syed Tabish R.; Peterson, Gregory M.

2018-01-01

Lichen planus (LP) is an uncommon mucocutaneous inflammatory condition, that is immunologically mediated, typically pruritic and often recurs. The currently advocated therapies are either not highly effective or associated with severe side effects. Enoxaparin, a widely used anticoagulant, is composed of both anticoagulant and non-anticoagulant fragments. Enoxaparin is reported to have anti-inflammatory properties and it was found to be effective in LP. However, the results from clinical studies have varied substantially and, therefore, the clinical role of enoxaparin in LP remains uncertain. This review focuses on potential reasons for the reported inconsistent outcomes, as well as proposing solutions; these include identifying batch-to-batch inconsistency in the composition of enoxaparin. The potential therapeutic value of enoxaparin in LP must be explored using well-designed clinical trials, combined with experimental studies that focus on identifying the anti-inflammatory fragments of enoxaparin and elucidating the mechanism of action of these non-anticoagulant fragments.

Exploring the Potential of PROBA-V for Evapotranspiration Monitoring in Wetlands

NASA Astrophysics Data System (ADS)

Barrios, Jose Miguel; Ghilain, Nicolas; Arboleda, Alirio; Gellens-Meulenberghs, Francoise

2016-08-01

This study aims at deriving daily evapotranspiration (ET) estimates at a convenient spatial resolution for ecosystem monitoring. The methodological approach was based on the computation of the energy balance over the study sites. The study explored the potential of integrating remote sensing (RS) products derived from the Meteosat Second Generation (MSG) satellite -in virtue of their high temporal resolution- and Proba-V data, supplying moderate spatial resolution data. This strategy was tested for the year 2014 on three wetlands sites located in Europe where eddy covariance measurements were available for validation. The modelled results correlated well with the validation data and showed the added value of combining the strengths of different satellite missions. The results open interesting perspectives for refining this approach with the upcoming Sentinel-3 datasets.

Who Do You Love, Your Mother or Your Horse? An Event-Related Brain Potential Analysis of Tone Processing in Mandarin Chinese

ERIC Educational Resources Information Center

Brown-Schmidt, Sarah; Canseco-Gonzalez, Enriqueta

2004-01-01

In Mandarin Chinese, word meaning is partially determined by lexical tone (Wang, 1973). Previous studies suggest that lexical tone is processed as linguistic information and not as pure tonal information (Gandour, 1998; Van Lanker & Fromkin, 1973). The current study explored the online processing of lexical tones. Event-related potentials were…

Does touch inhibit visual imagery? A case study on acquired blindness.

PubMed

von Trott Zu Solz, Jana; Paolini, Marco; Silveira, Sarita

2017-06-01

In a single-case study of acquired blindness, differential brain activation patterns for visual imagery of familiar objects with and without tactile exploration as well as of tactilely explored unfamiliar objects were observed. Results provide new insight into retrieval of visual images from episodic memory and point toward a potential tactile inhibition of visual imagery. © 2017 The Institute of Psychology, Chinese Academy of Sciences and John Wiley & Sons Australia, Ltd.

The evaluation of complex interventions in palliative care: an exploration of the potential of case study research strategies.

PubMed

Walshe, Catherine

2011-12-01

Complex, incrementally changing, context dependent and variable palliative care services are difficult to evaluate. Case study research strategies may have potential to contribute to evaluating such complex interventions, and to develop this field of evaluation research. This paper explores definitions of case study (as a unit of study, a process, and a product) and examines the features of case study research strategies which are thought to confer benefits for the evaluation of complex interventions in palliative care settings. Ten features of case study that are thought to be beneficial in evaluating complex interventions in palliative care are discussed, drawing from exemplars of research in this field. Important features are related to a longitudinal approach, triangulation, purposive instance selection, comprehensive approach, multiple data sources, flexibility, concurrent data collection and analysis, search for proving-disproving evidence, pattern matching techniques and an engaging narrative. The limitations of case study approaches are discussed including the potential for subjectivity and their complex, time consuming and potentially expensive nature. Case study research strategies have great potential in evaluating complex interventions in palliative care settings. Three key features need to be exploited to develop this field: case selection, longitudinal designs, and the use of rival hypotheses. In particular, case study should be used in situations where there is interplay and interdependency between the intervention and its context, such that it is difficult to define or find relevant comparisons.

The Lunar Roving Vehicle: Historical perspective

NASA Technical Reports Server (NTRS)

Morea, Saverio F.

1992-01-01

As NASA proceeds with its studies, planning, and technology efforts in preparing for the early twenty-first century, it seems appropriate to reexamine past programs for potential applicability in meeting future national space science and exploration goals and objectives. Both the National Commission on Space (NCOS) study and NASA's 'Sally Ride study' suggest future programs involving returning to the Moon and establishing man's permanent presence there, and/or visiting the planet Mars in both the unmanned and manned mode. Regardless of when and which of these new bold initiatives is selected as our next national space goal, implementing these potentially new national thrusts in space will undoubtedly require the use of both manned and remotely controlled roving vehicles. Therefore, the purpose of this paper is to raise the consciousness level of the current space exploration planners to what, in the early 1970s, was a highly successful roving vehicle. During the Apollo program the vehicle known as the Lunar Roving Vehicle (LRV) was designed for carrying two astronauts, their tools, and the equipment needed for rudimentary exploration of the Moon. This paper contains a discussion of the vehicle, its characteristics, and its use on the Moon. Conceivably, the LRV has the potential to meet some future requirements, either with relatively low cost modifications or via an evolutionary route. This aspect, however, is left to those who would choose to further study these options.

The Potential Impact of Preventive HIV Vaccines in China: Results and Benefits of a Multi-Province Modeling Collaboration

PubMed Central

Harmon, Thomas; Guo, Wei; Stover, John; Wu, Zunyou; Kaufman, Joan; Schneider, Kammerle; Liu, Li; Feng, Liao; Schwartländer, Bernard

2015-01-01

China’s commitment to implementing established and emerging HIV/AIDS prevention and control strategies has led to substantial gains in terms of access to antiretroviral treatment and prevention services, but the evolving and multifaceted HIV/AIDS epidemic in China highlights the challenges of maintaining that response. This study presents modeling results exploring the potential impact of HIV vaccines in the Chinese context at varying efficacy and coverage rates, while further exploring the potential implications of vaccination programs aimed at reaching populations at highest risk of HIV infection. A preventive HIV vaccine would add a powerful tool to China’s response, even if not 100% efficacious or available to the full population. PMID:26344945

Full Moon Exploration: valuable (non-polar) lunar science facilitated by a return to the Moon

NASA Astrophysics Data System (ADS)

Crawford, I. A.; Fagents, S. A.; Joy, K. H.

2007-06-01

The Moon is a promising science target, made a priority in recent space exploration plans. So far, polar landing sites have been preferred, but many promising scientific objectives lie elsewhere. Here we summarize the potential value of one such scientific target, northern Oceanus Procellarum, which includes basalts of a wide range of ages. Studying these would allow refinement of the lunar stratigraphy and chronology, and a better understanding of lunar mantle evolution. We consider how exploration of such areas might be achieved in the context of lunar exploration plans.

The Potential of the Imitation Game Method in Exploring Healthcare Professionals' Understanding of the Lived Experiences and Practical Challenges of Chronically Ill Patients.

PubMed

Wehrens, Rik

2015-09-01

This paper explores the potential and relevance of an innovative sociological research method known as the Imitation Game for research in health care. Whilst this method and its potential have until recently only been explored within sociology, there are many interesting and promising facets that may render this approach fruitful within the health care field, most notably to questions about the experiential knowledge or 'expertise' of chronically ill patients (and the extent to which different health care professionals are able to understand this experiential knowledge). The Imitation Game can be especially useful because it provides a way to map this experiential knowledge more systematically, without falling in the dual trap of either over-relying on in-depth, but highly specific phenomenological 'insider'-approaches that are hard to generalize, or, alternatively, problematically reducing the rich life-worlds of patients to a set of indicators in a questionnaire. The main focus of this paper is theoretical and conceptual: explaining the Imitation Game method, discussing its usefulness in the health care domain, and exploring the ways in which the approach can be utilized for chronic illness care. The paper presents both a conceptual and empirical exploration of how the Imitation Game method and its underlying theoretical concepts of 'contributory expertise' and 'interactional expertise' can be transferred from the sociological realm to the field of health care, what kinds of insights can be gained from the method, which methodological issues it may raise, and what potentially fruitful research routes can be explored. I argue that the Imitation Game can be thought of as a 'social learning experiment' that simultaneously enables the participants to learn from each other's perspectives, allows researchers to explore exciting new possibilities, and also offers the tools to intervene in the practice that is being studied.

NMR ANALYSIS OF MALE FATHEAD MINNOW URINARY METABOLITES: A POTENTIAL APPROACH FOR STUDYING IMPACTS OF CHEMICAL EXPOSURES

EPA Science Inventory

The potential for profiling endogenous metabolites in urine from male fathead minnows (Pimephales promelas) to assess chemical exposures was explored using nuclear magnetic resonance (NMR) spectroscopy. Both one dimensional (1D) and two dimensional (2D) NMR spectroscopy w...

Market opportunity assessment for the Eastern Shore short line rail in Maryland with a focus on potential new customers : research summary.

DOT National Transportation Integrated Search

2016-01-01

The purpose of this study was to examine the market feasibility of improved short line rail service on Marylands Eastern Shore and to explore the potential of an improved short line to attract additional businesses as new customers.

Reimagining English Language Learners from a Translingual Perspective

ERIC Educational Resources Information Center

Anderson, Jason

2018-01-01

This article explores the potential implications of theorizing in translingualism and translanguaging for foreign language teaching and learning. I discuss key terminology and introduce a translingual continuum as a potential way to understand language use practices both within and across communities. I report on an exploratory study into the…

Development of Optically Active Nanostructures for Potential Applications in Sensing, Therapeutics and Imaging

NASA Astrophysics Data System (ADS)

Joshi, Padmanabh

Materials at nanoscale are finding manifold applications in the various fields like sensing, plasmonics, therapeutics, to mention a few. Large amount of development has taken place regarding synthesis and exploring the novel applications of the various types of nanomaterials like organic, inorganic and hybrid of both. Yet, it is believed that the full potential of different nanomaterials is yet to be fully established stimulating researchers to explore more in the field of nanotechnology. Building on the same premise, in the following studies we have developed the nanomaterials in the class of optically active nanoparticles. First part of the study we have successfully designed, synthesized, and characterized Ag-Fe3O4 nanocomposite substrate for potential applications in quantitative Surface Enhanced Raman Scattering (SERS) measurements. Quantitative SERS-based detection of dopamine was performed successfully. In subsequent study, facile, single-step synthesis of polyethyleneimine (PEI) coated lanthanide based NaYF4 (Yb, Er) nanoparticles was developed and their application as potential photodynamic therapy agent was studied using excitations by light in near infra-red and visible region. In the following and last study, synthesis and characterization of the conjugated polymer nanoparticles was attempted successfully. Functionalization of the conjugated nanoparticles, which is a bottleneck for their potential applications, was successfully performed by encapsulating them in the silica nanoparticles, surface of which was then functionalized by amine group. Three types of optically active nanoparticles were developed for potential applications in sensing, therapeutics and imaging.

Characterizing Exoplanets with WFIRST

NASA Astrophysics Data System (ADS)

Robinson, Tyler D.; Stapelfeldt, Karl R.; Marley, Mark S.; Marchis, Franck; Fortney, Jonathan J.

2017-01-01

The Wide-Field Infrared Survey Telescope (WFIRST) mission is expected to be equipped with a Coronagraph Instrument (CGI) that will study and explore a diversity of exoplanets in reflected light. Beyond being a technology demonstration, the CGI will provide our first glimpses of temperate worlds around our nearest stellar neighbors. In this presentation, we explore how instrumental and astrophysical parameters will affect the ability of the WFIRST/CGI to obtain spectral and photometric observations that are useful for characterizing its planetary targets. We discuss the development of an instrument noise model suitable for studying the spectral characterization potential of a coronagraph-equipped, space-based telescope. To be consistent with planned technologies, we assume a baseline set of telescope and instrument parameters that include a 2.4 meter diameter primary aperture, an up-to-date filter set spanning the visible wavelength range, a spectroscopic wavelength range of 600-970 nm, and an instrument spectral resolution of 70. We present applications of our baseline model to a variety of spectral models of different planet types, emphasizing warm jovian exoplanets. With our exoplanet spectral models, we explore wavelength-dependent planet-star flux ratios for main sequence stars of various effective temperatures, and discuss how coronagraph inner and outer working angle constraints will influence the potential to study different types of planets. For planets most favorable to spectroscopic characterization—gas giants with extensive water vapor clouds—we study the integration times required to achieve moderate signal-to-noise ratio spectra. We also explore the sensitivity of the integration times required to detect key methane absorption bands to exozodiacal light levels. We conclude with a discussion of the opportunities for characterizing smaller, potentially rocky, worlds under a “rendezvous” scenario, where an external starshade is later paired with the WFIRST spacecraft.

Food Crops Response to Climate Change

NASA Astrophysics Data System (ADS)

Butler, E.; Huybers, P.

2009-12-01

Projections of future climate show a warming world and heterogeneous changes in precipitation. Generally, warming temperatures indicate a decrease in crop yields where they are currently grown. However, warmer climate will also open up new areas at high latitudes for crop production. Thus, there is a question whether the warmer climate with decreased yields but potentially increased growing area will produce a net increase or decrease of overall food crop production. We explore this question through a multiple linear regression model linking temperature and precipitation to crop yield. Prior studies have emphasised temporal regression which indicate uniformly decreased yields, but neglect the potentially increased area opened up for crop production. This study provides a compliment to the prior work by exploring this spatial variation. We explore this subject with a multiple linear regression model from temperature, precipitation and crop yield data over the United States. The United States was chosen as the training region for the model because there are good crop data available over the same time frame as climate data and presumably the yield from crops in the United States is optimized with respect to potential yield. We study corn, soybeans, sorghum, hard red winter wheat and soft red winter wheat using monthly averages of temperature and precipitation from NCEP reanalysis and yearly yield data from the National Agriculture Statistics Service for 1948-2008. The use of monthly averaged temperature and precipitation, which neglect extreme events that can have a significant impact on crops limits this study as does the exclusive use of United States agricultural data. The GFDL 2.1 model under a 720ppm CO2 scenario provides temperature and precipitation fields for 2040-2100 which are used to explore how the spatial regions available for crop production will change under these new conditions.

Southern Meridiani Planum - A candidate landing site for the first crewed mission to Mars

NASA Astrophysics Data System (ADS)

Clarke, J. D. A.; Willson, D.; Smith, H.; Hobbs, S. W.; Jones, E.

2017-04-01

Astronauts working on the surface of Mars have the capability to explore efficiently, rapidly, and flexibly, allowing them to perform a wide range of field investigations. NASA has begun an open international process to identify and evaluate candidate locations where crews could land, live and work on the martian surface, beginning with the First Landing Site/Exploration Zone Workshop for Human Missions to the Surface of Mars in October 2015. Forty seven sites were proposed, including several at or near the Meridiani area, the subject of this paper. We consider the Meridiani area an excellent candidate for the first missions to Mars. It is accessible, safe, contains potential water resources in the form of poly-hydrated magnesium sulphates, has diverse science features with high likelihood of meeting all science goals, has other potential resources and potential for further longer-ranged exploration. The presence of hardware from previous missions will be of benefit to studies of materials to martian conditions, assessing the effectiveness of historic planetary protection strategies, and engaging public interest. Lastly, parts of the Meridiani region have been well studied from the surface by the Opportunity mission, providing ground truth for orbital data. As one of the best documented regions of Mars this will allow a "Go where you know" approach for the first crewed missions, especially with regard to safety, trafficability, and water resource potential.

The costume of Shangri-La: thoughts on white privilege, cultural appropriation, and anti-asian racism.

PubMed

Kleisath, C Michelle

2014-01-01

This piece poses cultural appropriation as an undertheorized aspect of white privilege in White Privilege Studies. By way of narrative exploration, it asserts that a paucity of scholarship on Orientalism and anti-Asian racism has created a gap in White Privilege Studies that curbs its radical transformative potential. It argues for the value of a structural and historically focused lens for understanding the issue of cultural appropriation, and extends questions of culture and race relations beyond the borders of the United States. It also explores the complex ways that interracial and transnational relationships can influence white racial identity, and illustrates the disruptive potential that queer interracial relationships can offer to dominant historical patterns of white behavior.

Europa Geophysical Explorer Mission Concept Studies

NASA Astrophysics Data System (ADS)

Green, J. R.; Abelson, R. D.; Smythe, W.; Spilker, T. R.; Shirley, J. H.

2005-12-01

The Strategic Road Map for Solar System Exploration recommended in May 2005 that NASA implement the Europa Geophysical Explorer (EGE) as a Flagship mission early in the next decade. This supported the recommendations of the National Research Council's Solar System Decadal Survey and the priorities of the Outer Planets Assessment Group (OPAG). The Europa Geophysical Explorer would: (1) Characterize tidal deformations of the surface of Europa and surface geology, to confirm the presence of a subsurface ocean; (2) Measure the three-dimensional structure and distribution of subsurface water; and (3) Determine surface composition from orbit, and potentially, prebiotic chemistry, in situ. As the next step in Europa exploration, EGE would build on previous Europa Orbiter concepts, for example, the original Europa Orbiter and the Jupiter Icy Moons Orbiter (JIMO). As well, a new set of draft Level One Requirements, provided by NASA sponsors, guided the concept development. These requirements included: (1) Earliest Launch: 2012; (2) Launch Vehicle: Delta IV Heavy or Atlas V; (3) Primary Propulsion: Chemical; (4) Power: Radioisotope Power System (RPS); (4) Orbital Mission: 30 days minimum to meet orbital science objectives; and (5) Earth Gravity Assists: Allowed. The previous studies and the new requirements contributed to the development of several scientifically capable and relatively mass-rich mission options. In particular, Earth-gravity assists (EGA) were allowed, resulting in an increased delivered mass. As well, there have been advances in radiation-hardened components and subsystems, due to the investments from the X-2000 technology program and JIMO. Finally, developments in radioisotope power systems (RPS) have added to the capability and reliability of the mission. Several potential mission options were explored using a variety of trade study methods, ranging from the work of the JPL EGE Team of scientists and engineers in partnership with the OPAG Europa Sub-Group Advisory Team, JPL's Team X, and parametric modeling and simulation tools. We explored the system impacts of selecting different science payloads, power systems, mission durations, Deep Space Network (DSN) architectures, trajectory types, and launch vehicles. The comparisons show that there are feasible mission options that provide potentially available mass for enhanced spacecraft margins and science return, in addition to a 150-kg orbiter science instrument payload mass. This presentation describes high-priority science objectives for an EGE mission, results of the recent studies, and implementation options.

Diffuse CO2 degassing studies to reveal hidden geothermal resources in oceanic volcanic islands: The Canarian archipelago case study

NASA Astrophysics Data System (ADS)

Rodríguez, F.; Perez, N. M.; García-Merino, M.; Padron, E.; Melián, G.; Asensio-Ramos, M.; Hernandez Perez, P. A.; Padilla, G.; Barrancos, J.; Cótchico, M. A.

2016-12-01

The Canary Islands, owing to their recent volcanism, are the only Spanish territory with potential high enthalpy geothermal resources. The final goal of geothermal exploration in a specific area is to locate and define the size, shape, structure of hidden geothermal resources, and determine their characteristics (fluid type, temperature, chemical composition an ability to produce energy). At those areas where there is not any evidence of endogenous fluids manifestations at surface, that traditionally evidence the presence of an active geothermal system) the geochemical methods for geothermal exploration must include soil gas surveys. This is the case of five mining licenses for geothermal exploration in the Canay Islands, four in Tenerife and one in Gran Canaria Island. We report herein the results of diffuse CO2 emission studies in the five mining licenses during 2011-2014. The primary objective of the study was to sort the possible geothermal potential of these five mining licenses, thus reducing the uncertainty inherent to the selection of the areas with highest geothermal potential for future exploration works. The criterion used to sort the different areas was the contribution of volcano-hydrothermal CO2 in the degassing at each study area. Several hundreds of measurements of diffuse CO2 emission, soil CO2 concentration and isotopic composition were performed at each study area. Based in three different endmembers (biogenic, atmospheric and deep-seated CO2) with different CO2 concentrations (100, 0.04 and 100% respectively) and isotopic compositions (-20, -8 and -3 per mil vs. VPDB respectively) a mass balance to distinguish the different contribution of each endmember in the soil CO2 at each sampling site was made. The percentage of the volcano-hydrothermal contribution in the current diffuse CO2 degassing was in the range 2-19%.The Abeque mining license, that comprises part of the north-west volcanic rift of Tenerife, seemed to show the highest geothermal potential, with an average of 19% of CO2 being released from deep sources, followed by Atidama (south east of Gran Canaria) and Garehagua (southern volcanic rift of Tenerife), with 17% and 12% respectively.

Near Earth Object (NEO) Mitigation Options Using Exploration Technologies

NASA Technical Reports Server (NTRS)

Arnold William; Baysinger, Mike; Crane, Tracie; Capizzo, Pete; Sutherlin, Steven; Dankanich, John; Woodcock, Gordon; Edlin, George; Rushing, Johnny; Fabisinski, Leo;

Joint Interpretation of Geological, Magnetic, AMT, and ERT Data for Mineral Exploration in the Northeast of Inner Mongolia, China

NASA Astrophysics Data System (ADS)

Zhang, Gang; Lü, Qing-Tian; Zhang, Gui-Bin; Lin, Ping-Rong; Jia, Zheng-Yuan; Suo, Kui

2018-03-01

The integrated interpretation of data from various technologies has the potential to obtain a more accurate estimate of subterranean earth properties. In this paper, we implement the joint interpretation of geological and geophysical data for mineral exploration in the northeastern region of Inner Mongolia, China. The joint application of several methodologies reduces the exploration risk. We first determined an approximate and large potential area for mineral exploration with geological data and magnetic data interpretation in Gaoerqi. Results from the two types of data analysis show that the ore deposit strikes roughly east in the northern part of the Gaoerqi mining area. Next, we employed the audio-magnetotelluric (AMT) method to study the subterranean electrical resistivity distribution and divide the earth into four layers. Inverted resistivity sections from the AMT data illustrate that the ore deposits are likely developed in the low-resistivity zone of the survey area from the land surface to 300-m depth. Finally, the high-resolution borehole-to-surface electrical resistivity tomography (ERT) method was employed for further investigation of the location and attitude of the potential ore deposits. Inverted resistivity sections from the ERT data show that two prospective areas for mineral exploration were observed in the west of the survey area and that the eastern portion of the survey area warrants further investigation.

The Impact of a Potential Shale Gas Development in Germany and the United Kingdom on Pollutant and Greenhouse Gas Emissions

NASA Astrophysics Data System (ADS)

Weger, L.; Cremonese, L.; Bartels, M. P.; Butler, T. M.

2016-12-01

Several European countries with domestic shale gas reserves are considering extracting this natural gas resource to complement their energy transition agenda. Natural gas, which produces lower CO2 emissions upon combustion compared to coal or oil, has the potential to serve as a bridge in the transition from fossil fuels to renewables. However, the generation of shale gas leads to emissions of CH4 and pollutants such as PM, NOx and VOCs, which in turn impact climate as well as local and regional air quality. In this study, we explore the impact of a potential shale gas development in Europe, specifically in Germany and the United Kingdom, on emissions of greenhouse gases and pollutants. In order to investigate the effect on emissions, we first estimate a range of wells drilled per year and production volume for the two countries under examination based on available geological information and on regional infrastructural and economic limitations. Subsequently we assign activity data and emissions factors to the well development, gas production and processing stages of shale gas generation to enable emissions quantification. We then define emissions scenarios to explore different storylines of potential shale gas development, including low emissions (high level of regulation), high emissions (low level of regulation) and middle emissions scenarios, which influence fleet make-up, emission factor and activity data choices for emissions quantification. The aim of this work is to highlight important variables and their ranges, to promote discussion and communication of potential impacts, and to construct possible visions for a future shale gas development in the two study countries. In a follow-up study, the impact of pollutant emissions from these scenarios on air quality will be explored using the Weather Research and Forecasting model with chemistry (WRF-Chem) model.

Shale characterization on Barito field, Southeast Kalimantan for shale hydrocarbon exploration

NASA Astrophysics Data System (ADS)

Sumotarto, T. A.; Haris, A.; Riyanto, A.; Usman, A.

2017-07-01

Exploration and exploitation in Indonesia now are still focused on conventional hydrocarbon energy than unconventional hydrocarbon energy such as shale gas. Tanjung Formation is a source rock of Barito Basin located in South Kalimantan that potentially as shale hydrocarbon. In this research, integrated methods using geochemical analysis, mineralogy, petrophysical analysis and seismic interpretation has been applied to explore the shale hydrocarbon potential in Barito Field for Tanjung formation. The first step is conducting geochemical and mineralogy analysis to the shale rock sample. Our analysis shows that the organic richness is ranging from 1.26-5.98 wt.% (good to excellent) with the depth of early mature window of 2170 m. The brittleness index is in an average of 0.44-0.56 (less Brittle) and Kerogen type is classified into II/III type that potentially produces oil and gas. The second step is continued by performing petrophysical analysis, which includes Total Organic Carbon (TOC) calculation and brittleness index continuously. The result has been validated with a laboratory measurement that obtained a good correlation. In addition, seismic interpretation based on inverted acoustic impedance is applied to map the distributions of shale hydrocarbon potential. Our interpretation shows that shale hydrocarbon potential is localized in the eastern and southeastern part of the study area.

Exploring Newtonian Mechanics in a Conceptually-Integrated Digital Game: Comparison of Learning and Affective Outcomes for Students in Taiwan and the United States

ERIC Educational Resources Information Center

Clark, Douglas B.; Nelson, Brian C.; Chang, Hsin-Yi; Martinez-Garza, Mario; Slack, Kent; D'Angelo, Cynthia M.

2011-01-01

This study investigates the potential of a digital game that overlays popular game-play mechanics with formal physics representations and terminology to support explicit learning and exploration of Newtonian mechanics. The analysis compares test data, survey data, and observational data collected during implementations in Taiwan and the United…

Mars exobiology landing sites for future exploration

NASA Technical Reports Server (NTRS)

Landheim, Ragnhild; Greeley, Ronald; Desmarais, David; Farmer, Jack D.; Klein, Harold

1993-01-01

The selection of landing sites for Exobiology is an important issue for planning for future Mars missions. Results of a recent site selection study which focused on potential landing sites described in the Mars Landing Site Catalog are presented. In addition, basic Exobiology science objectives in Mars exploration are reviewed, and the procedures used in site evaluation and prioritization are outlined.

Changing Perspectives: Exploring a Pedagogy to Examine Other Perspectives about Stem Cell Research

ERIC Educational Resources Information Center

France, Bev; Mora, Helen A.; Bay, Jacquie L.

2012-01-01

This study explores how teachers developed and critically evaluated a range of teaching strategies that could support the discussion of a socio-scientific issue (SSI) that had the potential to be controversial. The issue was stem cell research and six New Zealand teachers of senior biology students (grades 12/13) took part in an action research…

The Cart before the Horse? Exploring the Potential of ePortfolios in a Western Australian Medical School

ERIC Educational Resources Information Center

Bate, Frank; Macnish, Jean; Skinner, Chris

2016-01-01

In 2014, the School of Medicine Fremantle of the University of Notre Dame Australia initiated a study to explore the curriculum underpinning portfolios used by first-year medical students. The School had used portfolios since 2005 and judged it timely to consider digital technologies as a mechanism to enhance student learning and improve…

Exploring Animal-Assisted Therapy as a Reading Intervention Strategy

ERIC Educational Resources Information Center

Kaymen, Maria S.

2005-01-01

This study is an examination of animal-assisted therapy in an attempt to explore the ways it may serve as reading intervention program for struggling readers. Due to the low rate of literacy in the U.S., children are often put into reading intervention programs where they are required to read to an adult; potentially creating anxiety that may act…

Exploring the Impact of Role-Playing on Peer Feedback in an Online Case-Based Learning Activity

ERIC Educational Resources Information Center

Ching, Yu-Hui

2014-01-01

This study explored the impact of role-playing on the quality of peer feedback and learners' perception of this strategy in a case-based learning activity with VoiceThread in an online course. The findings revealed potential positive impact of role-playing on learners' generation of constructive feedback as role-playing was associated with higher…

Reaction: Chemistry Driven by the Harsh Space Environment

NASA Technical Reports Server (NTRS)

Farrell, William M.

2018-01-01

The studies by Solar System Exploration Research Virtual Institute (SSERVI) teams such as REVEALS and DREAM2 not only connect back to the highest planetary science decadal goals regarding volatiles but also feed forward to understanding the chemical origins of potential resources at the surface useful for human exploration. See https://sservi.nasa.gov for more about SSERVI and its dynamic teams.

Augmented Reality M-Learning to Enhance Nursing Skills Acquisition in the Clinical Skills Laboratory

ERIC Educational Resources Information Center

Garrett, Bernard M.; Jackson, Cathryn; Wilson, Brian

2015-01-01

Purpose: This paper aims to report on a pilot research project designed to explore if new mobile augmented reality (AR) technologies have the potential to enhance the learning of clinical skills in the lab. Design/methodology/approach: An exploratory action-research-based pilot study was undertaken to explore an initial proof-of-concept design in…

"My Favourite Things to Do" and "My Favourite People": Exploring Salient Aspects of Children's Self-Concept

ERIC Educational Resources Information Center

Tatlow-Golden, Mimi; Guerin, Suzanne

2010-01-01

This study explores the potential of the "draw-and-write" method for inviting children to communicate salient aspects of their self-concept. Irish primary school children aged 10-13 years drew and wrote about their favourite people and things to do (social and active self). Children drew and described many salient activities (39 in…

Service Utilization, Perceived Changes of Self, and Life Satisfaction among Women Who Experienced Intimate Partner Abuse: The Mediation Effect of Empowerment

ERIC Educational Resources Information Center

Song, Li-yu

2012-01-01

This study explored the growth experiences of women abused by their intimate partner, specifically focusing on the associations between social services and empowerment, perceived changes of self, and life satisfaction. The potential effects of demographic variables, social support, coping, and experience of partner abuse were also explored. A…

Exploring the Nature of the H[subscript 2] Bond. 1. Using Spreadsheet Calculations to Examine the Valence Bond and Molecular Orbital Methods

ERIC Educational Resources Information Center

Halpern, Arthur M.; Glendening, Eric D.

2013-01-01

A three-part project for students in physical chemistry, computational chemistry, or independent study is described in which they explore applications of valence bond (VB) and molecular orbital-configuration interaction (MO-CI) treatments of H[subscript 2]. Using a scientific spreadsheet, students construct potential-energy (PE) curves for several…

Future Scenario Development from Disruptive Exploration Technologies and Business Models in the U.S. Geothermal Industry

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

Wall, Anna

With recent trends toward intermittent renewable energy sources in the U.S., the geothermal industry in its current form faces a crossroad: adapt, disrupt, or be left behind. Strategic planning with scenario analysis offers a framework to characterize plausible views of the future given current trends - as well as disruptions to the status quo. To inform strategic planning in the Department of Energy's (DOE) Geothermal Technology Office (GTO), the Geothermal Vision Study is tasked with offering data-driven pathways for future geothermal development. Scenario analysis is a commonly used tool in private industry corporate strategic planning as a way to prioritizemore » and manage large investments in light of uncertainty and risk. Since much of the uncertainty and risk in a geothermal project is believed to occur within early stage exploration and drilling, this paper focuses on the levers (technical and financial) within the exploration process that can be pulled to affect change. Given these potential changes, this work first qualitatively explores potential shifts to the geothermal industry. Future work within the Geothermal Vision Study will incorporate these qualitative scenarios quantitatively, in competition with other renewable and conventional energy industries.« less

Neurobiology of fibromyalgia and chronic widespread pain.

PubMed

Sluka, Kathleen A; Clauw, Daniel J

2016-12-03

Fibromyalgia is the current term for chronic widespread musculoskeletal pain for which no alternative cause can be identified. The underlying mechanisms, in both human and animal studies, for the continued pain in individuals with fibromyalgia will be explored in this review. There is a substantial amount of support for alterations of central nervous system nociceptive processing in people with fibromyalgia, and that psychological factors such as stress can enhance the pain experience. Emerging evidence has begun exploring other potential mechanisms including a peripheral nervous system component to the generation of pain and the role of systemic inflammation. We will explore the data and neurobiology related to the role of the CNS in nociceptive processing, followed by a short review of studies examining potential peripheral nervous system changes and cytokine involvement. We will not only explore the data from human subjects with fibromyalgia but will relate this to findings from animal models of fibromyalgia. We conclude that fibromyalgia and related disorders are heterogenous conditions with a complicated pathobiology with patients falling along a continuum with one end a purely peripherally driven painful condition and the other end of the continuum is when pain is purely centrally driven. Copyright © 2016 IBRO. Published by Elsevier Ltd. All rights reserved.

Exploration of Mechanisms behind Changes after Participation in a Parenting Intervention: A Qualitative Study in a Low-Resource Setting.

PubMed

Mejia, Anilena; Ulph, Fiona; Calam, Rachel

2016-03-01

Parenting interventions are effective for preventing psychological difficulties in children. However, their active ingredients have not been comprehensively explored. How do they work? What are the mechanisms operating behind changes? In 2012, a randomized controlled trial of a parenting intervention was conducted in low-resource communities of Panama. Effects on child behavioral difficulties, parental stress, and parenting practices were large in the short and long term. This was an ideal opportunity to explore potential mechanisms operating behind effects found in this low-resource setting. Twenty-five parents were interviewed. Data were analyzed through an inductive semantic thematic analysis. Three themes emerged from the data: (a) psychological mechanisms behind changes, (b) behavioral changes in parent, and (c) changes in the children. Parents described that the intervention triggered changes in emotion regulation, self-efficacy, and problem solving. Parents also reported behavioral changes such as praising their children more often, who in turn seemed more responsible and better at following instructions. The study offers participant-driven insight into potential pathways of change after participation in this parenting intervention, pathways that are often overlooked in quantitative studies. Future studies should further explore these pathways, through mediator and moderator analyses, and determine how much is shared across interventions and across different cultural settings. © Society for Community Research and Action 2016.

Family Background, School-Age Trajectories of Activity Participation, and Academic Achievement at the Start of High School

ERIC Educational Resources Information Center

Crosnoe, Robert; Smith, Chelsea; Leventhal, Tama

2015-01-01

Applying latent class and regression techniques to data from the NICHD Study of Early Child Care and Youth Development (n = 997), this study explored the potential academic advantages of time spent in out-of-school activities. Of particular interest was how these potential advantages played out in relation to the timing and duration of activity…

Exploring the Unknown: International Service and Individual Transformation

ERIC Educational Resources Information Center

Chang, Wei-Wen; Chen, Cheng-Hui Lucy; Huang, Yu-Fu; Yuan, Yu-Hsi

2012-01-01

Empirical studies have found that participation in international service increases learners' intercultural competence, language skills, appreciation of cultural differences, and tolerance for ambiguity. While previous studies suggest that international service experience is potentially transformative in nature, the present study examined…

Emotion and attention: event-related brain potential studies.

PubMed

Schupp, Harald T; Flaisch, Tobias; Stockburger, Jessica; Junghöfer, Markus

2006-01-01

Emotional pictures guide selective visual attention. A series of event-related brain potential (ERP) studies is reviewed demonstrating the consistent and robust modulation of specific ERP components by emotional images. Specifically, pictures depicting natural pleasant and unpleasant scenes are associated with an increased early posterior negativity, late positive potential, and sustained positive slow wave compared with neutral contents. These modulations are considered to index different stages of stimulus processing including perceptual encoding, stimulus representation in working memory, and elaborate stimulus evaluation. Furthermore, the review includes a discussion of studies exploring the interaction of motivated attention with passive and active forms of attentional control. Recent research is reviewed exploring the selective processing of emotional cues as a function of stimulus novelty, emotional prime pictures, learned stimulus significance, and in the context of explicit attention tasks. It is concluded that ERP measures are useful to assess the emotion-attention interface at the level of distinct processing stages. Results are discussed within the context of two-stage models of stimulus perception brought out by studies of attention, orienting, and learning.

Snohomish County Public Utility District Geothermal Energy Exploration Study Final Technical Report

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

Lewis, Adam; Collar, Craig W.

2012-10-04

Supported by funds from this award, the District thoroughly explored the feasibility of a hydrothermal geothermal development within its service territory. The District successfully planned and drilled six exploratory geothermal wells and added significantly to the knowledge of the geology of the area. The Straight Creek Fault region, which was the sole location that showed significant potential for hydrothermal development in the District's service territory, was determined not to be feasible for development. The District subsequently expanded its search for geothermal development locations to include all of Washington State. Mount Baker has been identified as the area of the statemore » with the greatest potential for geothermal development. Having gathered additional information about the Mount Baker region with support from this award, the District is actively pursuing exploration and development in the area.« less

TCGA4U: A Web-Based Genomic Analysis Platform To Explore And Mine TCGA Genomic Data For Translational Research.

PubMed

Huang, Zhenzhen; Duan, Huilong; Li, Haomin

2015-01-01

Large-scale human cancer genomics projects, such as TCGA, generated large genomics data for further study. Exploring and mining these data to obtain meaningful analysis results can help researchers find potential genomics alterations that intervene the development and metastasis of tumors. We developed a web-based gene analysis platform, named TCGA4U, which used statistics methods and models to help translational investigators explore, mine and visualize human cancer genomic characteristic information from the TCGA datasets. Furthermore, through Gene Ontology (GO) annotation and clinical data integration, the genomic data were transformed into biological process, molecular function, cellular component and survival curves to help researchers identify potential driver genes. Clinical researchers without expertise in data analysis will benefit from such a user-friendly genomic analysis platform.

Overview of the NASA Entry, Descent and Landing Systems Analysis Exploration Feed-Forward Study

NASA Technical Reports Server (NTRS)

DwyerCianciolo, Alicia M.; Zang, Thomas A.; Sostaric, Ronald R.; McGuire, M. Kathy

2011-01-01

Technology required to land large payloads (20 to 50 mt) on Mars remains elusive. In an effort to identify the most viable investment path, NASA and others have been studying various concepts. One such study, the Entry, Descent and Landing Systems Analysis (EDLSA) Study [1] identified three potential options: the rigid aeroshell, the inflatable aeroshell and supersonic retropropulsion (SRP). In an effort to drive out additional levels of design detail, a smaller demonstrator, or exploration feed-forward (EFF), robotic mission was devised that utilized two of the three (inflatable aeroshell and SRP) high potential technologies in a configuration to demonstrate landing a two to four metric ton payload on Mars. This paper presents and overview of the maximum landed mass, inflatable aeroshell controllability and sensor suite capability assessments of the selected technologies and recommends specific technology areas for additional work.

Evaluation of Advanced Composite Structures Technologies for Application to NASA's Vision for Space Exploration

NASA Technical Reports Server (NTRS)

Tenney, Darrel R.

2008-01-01

AS&M performed a broad assessment survey and study to establish the potential composite materials and structures applications and benefits to the Constellation Program Elements. Trade studies were performed on selected elements to determine the potential weight or performance payoff from use of composites. Weight predictions were made for liquid hydrogen and oxygen tanks, interstage cylindrical shell, lunar surface access module, ascent module liquid methane tank, and lunar surface manipulator. A key part of this study was the evaluation of 88 different composite technologies to establish their criticality to applications for the Constellation Program. The overall outcome of this study shows that composites are viable structural materials which offer from 20% to 40% weight savings for many of the structural components that make up the Major Elements of the Constellation Program. NASA investment in advancing composite technologies for space structural applications is an investment in America's Space Exploration Program.

The Near-Earth Object Human Space Flight Accessible Targets Study (NHATS) List of Near-Earth Asteroids: Identifying Potential Targets for Future Exploration

NASA Astrophysics Data System (ADS)

Abell, Paul; Barbee, B. W.; Mink, R. G.; Adamo, D. R.; Alberding, C. M.; Mazanek, D. D.; Johnson, L. N.; Yeomans, D. K.; Chodas, P. W.; Chamberlin, A. B.; Benner, L. A. M.; Drake, B. G.; Friedensen, V. P.

2012-10-01

Introduction: Much attention has recently been focused on human exploration of near-Earth asteroids (NEAs). Detailed planning for deep space exploration and identification of potential NEA targets for human space flight requires selecting objects from the growing list of known NEAs. NASA therefore initiated the Near-Earth Object Human Space Flight Accessible Target Study (NHATS), which uses dynamical trajectory performance constraints to identify potentially accessible NEAs. Accessibility Criteria: Future NASA human space flight capability is being defined while the Orion Multi-Purpose Crew Vehicle and Space Launch System are under development. Velocity change and mission duration are two of the most critical factors in any human spaceflight endeavor, so the most accessible NEAs tend to be those with orbits similar to Earth’s. To be classified as NHATS-compliant, a NEA must offer at least one round-trip trajectory solution satisfying purposely inclusive constraints, including total mission change in velocity ≤ 12 km/s, mission duration ≤ 450 days (with at least 8 days at the NEA), Earth departure between Jan 1, 2015 and Dec 31, 2040, Earth departure C3 ≤ 60 km2/s2, and Earth return atmospheric entry speed ≤ 12 km/s. Monitoring and Updates: The NHATS list of potentially accessible targets is continuously updated as NEAs are discovered and orbit solutions for known NEAs are improved. The current list of accessible NEAs identified as potentially viable for future human exploration under the NHATS criteria is available to the international community via a website maintained by NASA’s NEO Program Office (http://neo.jpl.nasa.gov/nhats/). This website also lists predicted optical and radar observing opportunities for each NHATS-compliant NEA to facilitate acquisition of follow-up observations. Conclusions: This list of NEAs will be useful for analyzing robotic mission opportunities, identifying optimal round trip human space flight trajectories, and highlighting attractive objects of interest for future ground-based observation opportunities.

Determinants of Perceived Stress in Individuals with Obesity: Exploring the Relationship of Potentially Obesity-Related Factors and Perceived Stress

PubMed Central

Junne, Florian; Ziser, Katrin; Giel, Katrin Elisabeth; Schag, Kathrin; Skoda, Eva; Mack, Isabelle; Niess, Andreas; Zipfel, Stephan; Teufel, Martin

2017-01-01

Objective Associations of specific types of stress with increased food intake and subsequent weight gain have been demonstrated in animal models as well as in experimental and epidemiological studies on humans. This study explores the research question of to what extent potentially obesity-related factors determine perceived stress in individuals with obesity. Methods N = 547 individuals with obesity participated in a cross-sectional study assessing perceived stress as the outcome variable and potential determinants of stress related to obesity. Based on the available evidence, a five factorial model of ‘obesity-related obesogenic stressors’ was hypothesized, including the dimensions, ‘drive for thinness’, ‘impulse regulation’, ‘ineffectiveness’, ‘social insecurity’, and ‘body dissatisfaction’. The model was tested using multiple linear regression analyses. Results The five factorial model of ‘potentially obesity-related stressors’ resulted in a total variance explanation of adjusted R² = 0.616 for males and adjusted R² = 0.595 for females for perceived stress. The relative variance contribution of the five included factors differed substantially for the two sexes. Conclusion The findings of this cross-sectional study support the hypothesized, potentially obesity-related factors: ‘drive for thinness’, ‘impulse regulation’, ‘ineffectiveness’, ‘social insecurity’, and ‘body dissatisfaction’ as relevant determinants of perceived stress in individuals with obesity. PMID:28433993

Assessing the Potential of Mathematics Textbooks to Promote Deep Learning

ERIC Educational Resources Information Center

Shield, Malcolm; Dole, Shelley

2013-01-01

Curriculum documents for mathematics emphasise the importance of promoting depth of knowledge rather than shallow coverage of the curriculum. In this paper, we report on a study that explored the analysis of junior secondary mathematics textbooks to assess their potential to assist in teaching and learning aimed at building and applying deep…

Potential of Mobile Learning in Teaching of ESL Academic Writing

ERIC Educational Resources Information Center

Zaki, Arlina Ahmad; Yunus, Melor Md

2015-01-01

The potentials of mobile learning in teaching academic writing skills for ESL students are explored in this paper. Although there have been studies on MALL to improve writing skills, academic writing was never really touched. Few aspects are covered like the changes in educational technology, defining MALL, identifying issues in academic writing…

Potential Economic Benefits of Consumer Education.

ERIC Educational Resources Information Center

Ferguson, Allen R.; And Others

A study explored the potential economic impacts of a large and successful national program of consumer education. Following a literature review, a qualitative analysis was performed on a wide range of topics. The topics pertained to information and the process of consumer choice, the role of advertising, consumer sovereignty and the supply system,…

Childhood Bestiality: A Potential Precursor to Adult Interpersonal Violence

ERIC Educational Resources Information Center

Hensley, Christopher; Tallichet, Suzanne E.; Dutkiewicz, Erik L.

2010-01-01

Although bestiality is an infrequent form of animal cruelty, the possibility of identifying a potential link between these acts and later interpersonal violence is an area of research that deserves further exploration. In a replication of the Hensley, Tallichet, and Singer study and based on survey data from male inmates at a medium- and…

Identifying the Potential Organizational Impact of an Educational Peer Review Program

ERIC Educational Resources Information Center

Toth, Kate E.; McKey, Colleen A.

2010-01-01

The literature on educational peer review (EPR) has focused on evaluating EPR's impact on faculty and/or student learning outcomes; no literature exists on the potential organizational impact. A qualitative (case study) research design explored perceptions of 17 faculty and 10 administrators within a school of nursing in an Ontario university…

Predicting Student Actions in a Procedural Training Environment

ERIC Educational Resources Information Center

Riofrio-Luzcando, Diego; Ramirez, Jaime; Berrocal-Lobo, Marta

2017-01-01

Data mining is known to have a potential for predicting user performance. However, there are few studies that explore its potential for predicting student behavior in a procedural training environment. This paper presents a collective student model, which is built from past student logs. These logs are first grouped into clusters. Then, an…

Exploring the Educational Potential of Robotics in Schools: A Systematic Review

ERIC Educational Resources Information Center

Benitti, Fabiane Barreto Vavassori

2012-01-01

This study reviews recently published scientific literature on the use of robotics in schools, in order to: (a) identify the potential contribution of the incorporation of robotics as educational tool in schools, (b) present a synthesis of the available empirical evidence on the educational effectiveness of robotics as an educational tool in…

Market opportunity assessment for the Eastern Shore short line rail in Maryland with a focus on potential new customers.

DOT National Transportation Integrated Search

2016-01-01

This study by the University of Maryland explored the potential of an improved freight rail line to attract new customers. The analysis was based on the 2014 InfoGroup U.S. Business Database and other input data that the National Transportation Cente...

Exploring the Use of Electronic Mobile Technologies among Distance Learners in Rural Communities for Safe and Disruptive Learning

ERIC Educational Resources Information Center

Ntloedibe-Kuswani, Gomang Seratwa

2013-01-01

Several studies indicated the potential of electronic mobile technologies in reaching (safe learning) under-served communities and engaging (disruptive learning) disadvantaged peoples affording them learning experiences. However, the potential benefits of (electronic mobile learning) e-mobile learning have not been well understood from the…

It's Story Time!: Exploring the Potential of Multimodality in Oral Storytelling to Support Children's Vocabulary Learning

ERIC Educational Resources Information Center

Lwin, Soe Marlar

2016-01-01

Although many studies have been done on the benefits of parent/teacher-child interactions during shared storybook reading or read'aloud sessions, very few have examined the potential of professional storytellers' oral discourse to support children's vocabulary learning. In those storytelling sessions conducted by professional storytellers, the…

Video-Stimulated Recall as a Catalyst for Teacher Professional Learning

ERIC Educational Resources Information Center

Geiger, Vince; Muir, Tracey; Lamb, Janeen

2016-01-01

The purpose of this article is to examine the potential of video-catalysed reflective practice for supporting ongoing teacher professional learning in numeracy. We explore this potential through a synthesis of two case studies that investigated different approaches to supporting teacher reflection on practice through the use of video-stimulated…

Effective Marketing Strategies Flow from Sound Segmentation Data.

ERIC Educational Resources Information Center

Chen, Henry C. K.; And Others

The paper investigates the potential market segments of an upper division university in transition to 4-year status, and explores selection criteria and the influence of various information sources on the choice of university by the potential target students. Data sources for the study included a survey of 142 freshmen students of whom 120…

Potentially Stressful Life Events and Emotional Closeness between Grandparents and Adult Grandchildren

ERIC Educational Resources Information Center

Wood, Suzanne; Liossis, Poppy

2007-01-01

The purpose of this study is to explore the variation in emotional closeness in the adult grandchild and grandparent relationship in relation to the occurrence of potentially stressful life events in childhood. A sample of university students (N = 119) completed a questionnaire measuring elements of intergenerational solidarity. Comparisons were…

GeoVision Study | Geothermal Technologies | NREL

Science.gov Websites

and technical issues of advanced technologies and potential future impacts and calculating geothermal : Exploration Reservoir development and management Social and environmental impacts Hybrid systems Thermal

JUpiter ICy moons Explorer (JUICE): An ESA mission to orbit Ganymede and to characterise the Jupiter system

NASA Astrophysics Data System (ADS)

Grasset, O.; Dougherty, M. K.; Coustenis, A.; Bunce, E. J.; Erd, C.; Titov, D.; Blanc, M.; Coates, A.; Drossart, P.; Fletcher, L. N.; Hussmann, H.; Jaumann, R.; Krupp, N.; Lebreton, J.-P.; Prieto-Ballesteros, O.; Tortora, P.; Tosi, F.; Van Hoolst, T.

2013-04-01

Past exploration of Jupiter's diverse satellite system has forever changed our understanding of the unique environments to be found around gas giants, both in our solar system and beyond. The detailed investigation of three of Jupiter's Galilean satellites (Ganymede, Europa, and Callisto), which are believed to harbour subsurface water oceans, is central to elucidating the conditions for habitability of icy worlds in planetary systems in general. The study of the Jupiter system and the possible existence of habitable environments offer the best opportunity for understanding the origins and formation of the gas giants and their satellite systems. The JUpiter ICy moons Explorer (JUICE) mission, selected by ESA in May 2012 to be the first large mission within the Cosmic Vision Program 2015-2025, will perform detailed investigations of Jupiter and its system in all their inter-relations and complexity with particular emphasis on Ganymede as a planetary body and potential habitat. The investigations of the neighbouring moons, Europa and Callisto, will complete a comparative picture of the Galilean moons and their potential habitability. Here we describe the scientific motivation for this exciting new European-led exploration of the Jupiter system in the context of our current knowledge and future aspirations for exploration, and the paradigm it will bring in the study of giant (exo) planets in general.

Prospectivity Modeling of Karstic Groundwater Using a Sequential Exploration Approach in Tepal Area, Iran

NASA Astrophysics Data System (ADS)

Sharifi, Fereydoun; Arab-Amiri, Ali Reza; Kamkar-Rouhani, Abolghasem; Yousefi, Mahyar; Davoodabadi-Farahani, Meysam

2017-09-01

The purpose of this study is water prospectivity modeling (WPM) for recognizing karstic water-bearing zones by using analyses of geo-exploration data in Kal-Qorno valley, located in Tepal area, north of Iran. For this, a sequential exploration method applied on geo-evidential data to delineate target areas for further exploration. In this regard, two major exploration phases including regional and local scales were performed. In the first phase, indicator geological features, structures and lithological units, were used to model groundwater prospectivity as a regional scale. In this phase, for karstic WPM, fuzzy lithological and structural evidence layers were generated and combined using fuzzy operators. After generating target areas using WPM, in the second phase geophysical surveys including gravimetry and geoelectrical resistivity were carried out on the recognized high potential zones as a local scale exploration. Finally the results of geophysical analyses in the second phase were used to select suitable drilling locations to access and extract karstic groundwater in the study area.

Bursting Regimes in a Reaction-Diffusion System with Action Potential-Dependent Equilibrium

PubMed Central

Meier, Stephen R.; Lancaster, Jarrett L.; Starobin, Joseph M.

2015-01-01

The equilibrium Nernst potential plays a critical role in neural cell dynamics. A common approximation used in studying electrical dynamics of excitable cells is that the ionic concentrations inside and outside the cell membranes act as charge reservoirs and remain effectively constant during excitation events. Research into brain electrical activity suggests that relaxing this assumption may provide a better understanding of normal and pathophysiological functioning of the brain. In this paper we explore time-dependent ionic concentrations by allowing the ion-specific Nernst potentials to vary with developing transmembrane potential. As a specific implementation, we incorporate the potential-dependent Nernst shift into a one-dimensional Morris-Lecar reaction-diffusion model. Our main findings result from a region in parameter space where self-sustaining oscillations occur without external forcing. Studying the system close to the bifurcation boundary, we explore the vulnerability of the system with respect to external stimulations which disrupt these oscillations and send the system to a stable equilibrium. We also present results for an extended, one-dimensional cable of excitable tissue tuned to this parameter regime and stimulated, giving rise to complex spatiotemporal pattern formation. Potential applications to the emergence of neuronal bursting in similar two-variable systems and to pathophysiological seizure-like activity are discussed. PMID:25823018

Exploring New Potentials of Blogs for Learning: Can Children Use Blogs for Personal Information Management (PIM)?

ERIC Educational Resources Information Center

Yeo, Hwan-Ik; Lee, Yekyung Lisa

2014-01-01

This study explores the use of blogs for personal information management (PIM) as a learning tool that could bring increased efficiency and academic self-efficacy for carrying out learning tasks. In order to identify the uses and effects of using blogs for PIM by children, a control group that used personal spaces within the class website and an…

Anticipating cascading change in land use: Exploring the implications of a major trend in US northern forests

Treesearch

David N. Bengston; Michael J. Dockry; Stephen R. Shifley

2018-01-01

Land managers, planners, and policy makers need to proactively consider the potential effects of change in order to prepare for it. But the direct consequences of social and ecological change are often not thoroughly identified and explored in policy analysis, and possible higher-order implications are rarely considered. This study used a structured group process...

Agency, Isolation, and the Coming of New Technologies: Exploring "Dependency" in Coastal Communities of Newfoundland Through Participatory Research

ERIC Educational Resources Information Center

Clover, Darlene; Harris, Carol E.

2005-01-01

How does one effectively and ethically conduct research with community members who are steeped in histories of economic and social dependency, so that the people themselves take charge of their futures? This question is explored in a Canadian context as the authors study the potential of new technologies to bring hope to traditional coastal…

A National Peace Education Program in Lebanon: Exploring the Possibilities from the Leaders' Perspectives

ERIC Educational Resources Information Center

Tannous, Joseph M.; Oueijan, Harvey N.

2011-01-01

This document reports the findings of a doctoral project regarding peace education in Lebanon. The emergence of Lebanon from a long civil war necessitates the existence of a peace program that will educate the new generations for a culture of peace. In this study, we tried to explore the potential of the development of a unified peace program…

Peer Study Groups as Catalyst for Vocational Exploration

ERIC Educational Resources Information Center

Arendale, David R.; Hane, Amanda R.

2016-01-01

Postsecondary peer assisted learning programs often cite improving academic achievement for students. This qualitative study investigated the potential effect of serving as student facilitators of a peer study group on their future vocation. This was a replication of previous studies of personal and professional outcomes for study group…

Exploring long-wave infrared transmitting materials with AxBy form: First-principles gene-like studies.

PubMed

Du, Jia-Ren; Chen, Nian-Ke; Li, Xian-Bin; Xie, Sheng-Yi; Tian, Wei Quan; Wang, Xian-Yin; Tu, Hai-Ling; Sun, Hong-Bo

2016-02-23

Long-wave infrared (8-12 μm) transmitting materials play critical roles in space science and electronic science. However, the paradox between their mechanical strength and infrared transmitting performance seriously prohibits their applications in harsh external environment. From the experimental view, searching a good window material compatible with both properties is a vast trail-and-error engineering project, which is not readily achieved efficiently. In this work, we propose a very simple and efficient method to explore potential infrared window materials with suitable mechanical property by first-principles gene-like searching. Two hundred and fifty-three potential materials are evaluated to find their bulk modulus (for mechanical performance) and phonon vibrational frequency (for optical performance). Seven new potential candidates are selected, namely TiSe, TiS, MgS, CdF2, HgF2, CdO, and SrO. Especially, the performances of TiS and CdF2 can be comparable to that of the most popular commercial ZnS at high temperature. Finally, we propose possible ranges of infrared transmission for halogen, chalcogen and nitrogen compounds respectively to guide further exploration. The present strategy to explore IR window materials can significantly speed up the new development progress. The same idea can be used for other material rapid searching towards special functions and applications.

Telepresence in the human exploration of Mars: Field studies in analog environments

NASA Technical Reports Server (NTRS)

Stoker, Carol R.

1993-01-01

This paper describes the role of telepresence in performing exploration of Mars. As part of an effort to develop telepresence to support Mars exploration, NASA is developing telepresence technology and using it to perform exploration in space analog environments. This paper describes experiments to demonstrate telepresence control of an underwater remotely operated vehicle (TROV) to perform scientific field work in isolated and hostile environments. Toward this end, we have developed a telepresence control system and interfaced it to an underwater remotely operated vehicle. This vehicle was used during 1992 to study aquatic ecosystems in Antarctica including a study of the physical and biological environment of permanently ice-covered lake. We also performed a preliminary analysis of the potential for using the TROV to study the benthic ecology under the sea ice in McMurdo sound. These expeditions are opening up new areas of research by using telepresence control of remote vehicles to explore isolated and extreme environments on Earth while also providing an impetus to develop technology which will play a major role in the human exploration of Mars. Antarctic field operations, in particular, provide an excellent analog experience for telepresence operation in space.

Analysis of the Human Prostate-Specific Proteome Defined by Transcriptomics and Antibody-Based Profiling Identifies TMEM79 and ACOXL as Two Putative, Diagnostic Markers in Prostate Cancer

PubMed Central

O'Hurley, Gillian; Busch, Christer; Fagerberg, Linn; Hallström, Björn M.; Stadler, Charlotte; Tolf, Anna; Lundberg, Emma; Schwenk, Jochen M.; Jirström, Karin; Bjartell, Anders; Gallagher, William M.; Uhlén, Mathias; Pontén, Fredrik

2015-01-01

To better understand prostate function and disease, it is important to define and explore the molecular constituents that signify the prostate gland. The aim of this study was to define the prostate specific transcriptome and proteome, in comparison to 26 other human tissues. Deep sequencing of mRNA (RNA-seq) and immunohistochemistry-based protein profiling were combined to identify prostate specific gene expression patterns and to explore tissue biomarkers for potential clinical use in prostate cancer diagnostics. We identified 203 genes with elevated expression in the prostate, 22 of which showed more than five-fold higher expression levels compared to all other tissue types. In addition to previously well-known proteins we identified two poorly characterized proteins, TMEM79 and ACOXL, with potential to differentiate between benign and cancerous prostatic glands in tissue biopsies. In conclusion, we have applied a genome-wide analysis to identify the prostate specific proteome using transcriptomics and antibody-based protein profiling to identify genes with elevated expression in the prostate. Our data provides a starting point for further functional studies to explore the molecular repertoire of normal and diseased prostate including potential prostate cancer markers such as TMEM79 and ACOXL. PMID:26237329

Young coconut water ameliorates depression via modulation of neurotransmitters: possible mechanism of action.

PubMed

Rao, Sadia Saleem; Najam, Rahila

2016-10-01

In the current era, plants are frequently tested for its antidepressant potential. Therefore young coconut water, a commonly used plant based beverage, was selected to explore its antidepressant potential. Rodents were selected for this study and forced swim test was conducted to explore antidepressant activity. Analysis of brain biogenic amines using high performance liquid chromatography coupled with electrochemical detection and potentiation of noradrenaline toxicity model were also incorporated in this study to demonstrate probable antidepressant mechanism of action. Coconut water was administered orally at the dose of 4 ml/100 g. Young coconut water showed highly significant increase in struggling time (p < 0.001) in forced swim test. This suggests antidepressant effect of young coconut water. In noradrenaline toxicity model, it was observed that young coconut water is not a good adrenergic component as its lethality percentage in this test was observed 0 % unlike imipramine which showed lethality of 100 %. High performance liquid chromatography-electrochemical detection of rodent's brain revealed decline in 5-hydroxytryptamine, noradrenaline and dopamine, with concomitant decline in metabolites 5-hydroxyindoleacetic acid, 3,4-dihydroxyphenylacetic acid, homovanillic acid and increase in 5-hydroxyindoleacetic acid/5-hydroxytryptamine ratio. Findings from the exploration of monoamines suggest antidepressant effect of young coconut water via homeostasis of monoamines synthesis.

Do not Bet on the Unknown Versus Try to Find Out More: Estimation Uncertainty and “Unexpected Uncertainty” Both Modulate Exploration

PubMed Central

Payzan-LeNestour, Élise; Bossaerts, Peter

2012-01-01

Little is known about how humans solve the exploitation/exploration trade-off. In particular, the evidence for uncertainty-driven exploration is mixed. The current study proposes a novel hypothesis of exploration that helps reconcile prior findings that may seem contradictory at first. According to this hypothesis, uncertainty-driven exploration involves a dilemma between two motives: (i) to speed up learning about the unknown, which may beget novel reward opportunities; (ii) to avoid the unknown because it is potentially dangerous. We provide evidence for our hypothesis using both behavioral and simulated data, and briefly point to recent evidence that the brain differentiates between these two motives. PMID:23087606

A Potential Role for smallsats and Cubesats in Lunar Exploration

NASA Astrophysics Data System (ADS)

Carpenter, James; Fisackerly, Richard; Houdou, Bérengère; De Rosa, Diego; Schiemann, Jens D.; Walker, Roger; Zeppenfeldt, Frank

2015-04-01

The Moon is an important exploration destination for ESA, which is currently engaged in activities to access and exploit the Moon through developments in future human exploration systems and precursor robotic surface missions. However, recent major advancements in Smallsat and Cubesat technologies, and their application to fields such as Earth imaging and atmospheric science, has opened the possibility of utilising these smaller, lower cost platforms beyond LEO and potentially at the Moon. ESA is interested in understanding how emerging Smallsat & Cubesat instrument and platform technology could be applied to Lunar Exploration, particularly in the fields of technology demonstration and investigations which can be precursors to longer term l exploration activies. Lunar Cubesats can offer an means of access to the Moon, which complements larger ESA-led opportunities on international surface missions and via future human exploration systems. In this talk ESA will outline its current objectives in Lunar Exploration and highlight potential future opportunities for Smallsat and Cubesat platforms to play a role.

Assessment of organochlorine pesticides residues in higher plants from oil exploration areas of Niger Delta, Nigeria.

PubMed

Sojinu, O Samuel; Sonibare, Oluwadayo O; Ekundayo, Olusegun O; Zeng, Eddy Y

2012-09-01

The concentrations and distributions of organochlorine pesticides (OCPs) in some higher plant samples collected from oil exploration areas of the Niger Delta, Nigeria were examined. The concentrations of Σ(25)OCP ranged from 82 to 424, 44 to 200 , 34 to 358, 33 to 106 and 16 to 75 ng/g in Olomoro, Oginni, Uzere, Irri and Calabar plants, respectively. The compositional profiles of the analysed OCPs in most of the plants showed no fresh inputs in the area. The OCPs detected in the samples could have resulted from pesticide usage for intense farming activities cum the use of pesticides to control household pests and insects in the area. Drilling fluids and corrosion inhibitors used in petroleum explorations also have chlorinated compounds as additives thereby serving as potential sources of OCPs. Among the studied plants, elephant grass showed high bioaccumulation and phytoremediation potentials of OCPs. The ΣHCH concentrations exceeded the allowable daily intake limit thereby serving as potential threat to humans. Copyright © 2012 Elsevier B.V. All rights reserved.

Reinforced dynamics for enhanced sampling in large atomic and molecular systems

NASA Astrophysics Data System (ADS)

Zhang, Linfeng; Wang, Han; E, Weinan

2018-03-01

A new approach for efficiently exploring the configuration space and computing the free energy of large atomic and molecular systems is proposed, motivated by an analogy with reinforcement learning. There are two major components in this new approach. Like metadynamics, it allows for an efficient exploration of the configuration space by adding an adaptively computed biasing potential to the original dynamics. Like deep reinforcement learning, this biasing potential is trained on the fly using deep neural networks, with data collected judiciously from the exploration and an uncertainty indicator from the neural network model playing the role of the reward function. Parameterization using neural networks makes it feasible to handle cases with a large set of collective variables. This has the potential advantage that selecting precisely the right set of collective variables has now become less critical for capturing the structural transformations of the system. The method is illustrated by studying the full-atom explicit solvent models of alanine dipeptide and tripeptide, as well as the system of a polyalanine-10 molecule with 20 collective variables.

Exploring patterns of recurrent melanoma in Northeast Scotland to inform the introduction a digital self-examination intervention

PubMed Central

2014-01-01

Background Melanoma incidence is growing and more people require follow-up to detect recurrent melanoma quickly. Those detecting their own recurrent melanoma appear to have the best prognosis, so total skin self examination (TSSE) is advocated, but practice is suboptimal. A digital intervention to support TSSE has potential but it is not clear which patient groups could benefit most. The aim of this study was to explore cutaneous melanoma recurrence patterns between 1991 and 2012 in Northeast Scotland. The objectives were to: determine how recurrent melanomas were detected during the period; explore factors potentially predictive of mode of recurrence detection; identify groups least likely to detect their own recurrent melanoma and with most potential to benefit from digital TSSE support. Methods Pathology records were used to identify those with a potential recurrent melanoma of any type (local, regional and distant). Following screening of potential cases available secondary care-held records were subsequently scrutinised. Data was collected on demographics and clinical characteristics of the initial and recurrent melanoma. Data were handled in Microsoft Excel and transported into SPSS 20.0 for statistical analysis. Factors predicting detection at interval or scheduled follow-up were explored using univariate techniques, with potentially influential factors combined in a multivariate binary logistic model to adjust for confounding. Results 149 potential recurrences were identified from the pathology database held at Aberdeen Royal Infirmary. Reliable data could be obtained on 94 cases of recurrent melanoma of all types. 30 recurrences (31.9%) were found by doctors at follow-up, and 64 (68.1%) in the interval between visits, usually by the patient themselves. Melanoma recurrences of all types occurring within one-year were significantly more likely to be found at follow-up visits, and this remained so following adjustment for other factors that could be used to target digital TSSE support. Conclusions A digital intervention should be offered to all newly diagnosed patients. This group could benefit most from optimal TSSE practice. PMID:24612627

Metrics for Diagnosing Undersampling in Monte Carlo Tally Estimates

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

Perfetti, Christopher M.; Rearden, Bradley T.

This study explored the potential of using Markov chain convergence diagnostics to predict the prevalence and magnitude of biases due to undersampling in Monte Carlo eigenvalue and flux tally estimates. Five metrics were applied to two models of pressurized water reactor fuel assemblies and their potential for identifying undersampling biases was evaluated by comparing the calculated test metrics with known biases in the tallies. Three of the five undersampling metrics showed the potential to accurately predict the behavior of undersampling biases in the responses examined in this study.

Ares V: Application to Solar System Scientific Exploration

NASA Technical Reports Server (NTRS)

Reh, Kim; Spilker, Tom; Elliott, John; Balint, Tibor; Donahue, Ben; McCormick, Dave; Smith, David B.; Tandon, Sunil; Woodcock, Gordon

2008-01-01

The following sections describe Ares V performance and its payoff to a wide array of potential solar system exploration missions. Application to potential Astrophysics missions is addressed in Reference 3.

FEASIBILITY STUDY OF CLIMATE CHANGE IMPACTS ON NITROGEN IN CAPE COD EMBAYMENTS

EPA Science Inventory

The objective of this study is to explore the feasibility of studying potential effects of climate change on impairments resulting from nitrogen loadings in the salt water embayments of Cape Cod. The report includes a recommended plan for studying these impacts, an estimate of t...

State-coupled low-temperature geothermal-resource-assessment program, Fiscal Year 1980. Final technical report

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

Icerman, L.; Starkey, A.; Trentman, N.

1981-08-01

Magnetic, gravity, seismic-refraction, and seismic-reflection profiles across the Las Alturas Geothermal Anomaly, New Mexico, are presented. Studies in the Socorro area include the following: seismic measurements of the tertiary fill in the Rio Grande Depression west of Socorro, geothermal data availability for computer simulation in the Socorro Peak KGRA, and ground water circulation in the Socorro Geothermal Area. Regional geothermal exploration in the Truth or Consequences Area includes: geological mapping of the Mud Springs Mountains, hydrogeology of the thermal aquifer, and electrical-resistivity investigation of the geothermal potential. Other studies included are: geothermal exploration with electrical methods near Vado, Chamberino, andmore » Mesquite; a heat-flow study of Dona Ana County; preliminary heat-flow assessment of Southeast Luna County; active fault analysis and radiometric dating of young basalts in southern New Mexico; and evaluation of the geothermal potential of the San Juan Basin in northwestern New Mexico.« less

Topographic map analysis to determine Arjuno-Welirang volcanostratigraphy and implication for geothermal exploration

NASA Astrophysics Data System (ADS)

Apriani, Lestari; Satriana, Joshua; Aulian Chalik, Citra; Syahputra Mulyana, Reza; Hafidz, Muhammad; Suryantini

2017-12-01

Volcanostratigraphy study is used for supporting geothermal exploration on preliminary survey. This study is important to identify volcanic eruption center which shows potential area of geothermal heat source. The purpose of volcanostratigraphy study in research area is going to distinguish the characteristics of volcanic eruption product that construct the volcanic body. The analysis of Arjuno-Welirang volcanostratigraphy identification are based on topographic maps of Malang sheet with 1:100.000 scale, 1:50.000 scale, and a geological map. Regarding to the delineation of ridge and river, we determine five crowns, three hummocks, one brigade and one super brigade. The crowns consist of Ringgit, Welirang, Arjuno, Kawi, and Penanggungan, the hummocks comprise of Kembar III, Kembar II, and Kembar I, the brigade is Arjuno-Welirang, and the super brigade is Tengger. Based on topographic map interpretation and geothermal prospect evaluation method analysis, shows that Arjuno-Welirang prospect area have good geothermal resource potential.

Washington Geothermal Play Fairway Analysis Data From Potential Field Studies

DOE Data Explorer

Anderson, Megan; Ritzinger, Brent; Glen, Jonathan; Schermerhorn, William

2017-12-20

A recent study which adapts play fairway analysis (PFA) methodology to assess geothermal potential was conducted at three locations (Mount Baker, Mount St. Helens seismic zone, and Wind River valley) along the Washington Cascade Range (Forson et al. 2017). Potential field (gravity and magnetic) methods which can detect subsurface contrasts in physical properties, provides a means for mapping and modeling subsurface geology and structure. As part of the WA-Cascade PFA project, we performed potential field studies by collecting high-resolution gravity and ground-magnetic data, and rock property measurements to (1) identify and constrain fault geometries (2) constrain subsurface lithologic distribution (3) study fault interactions (4) identify areas favorable to hydrothermal flow, and ultimately (5) guide future geothermal exploration at each location.

A Comparison of Validity Rates between Paper-and-Pencil and Computerized Testing with the MMPI-2

ERIC Educational Resources Information Center

Blazek, Nicole L.; Forbey, Johnathan D.

2011-01-01

Although the use of computerized testing in psychopathology assessment has increased in recent years, limited research has examined the impact of this format in terms of potential differences in test validity rates. The current study explores potential differences in the rates of valid and invalid Minnesota Multiphasic Personality Inventory--2…

The Potential Role of Perceived Support for Reduction of Special Education Teachers' Burnout

ERIC Educational Resources Information Center

Langher, Viviana; Caputo, Andrea; Ricci, Maria Elisabetta

2017-01-01

Teacher burnout is conceived as a general concern in special education because of the emotionally demanding work context. This study explored the potential role of perceived support for reduction of burnout in a sample of 276 special education teachers working in lower (n=130) and higher (n=146) secondary schools. Participants completed the…

Potential of Field Education as Signature Pedagogy: The Field Director Role

ERIC Educational Resources Information Center

Lyter, Sharon C.

2012-01-01

In light of the assertion that field education is the signature pedagogy of social work education, this Internet-based study explores field director demographics and questions the fulfillment of this potential, examining BSW and MSW field education through the lens of the field director position. Field directors (159) and deans/directors (150)…

The Potential of Automated Corrective Feedback to Remediate Cohesion Problems in Advanced Students' Writing

ERIC Educational Resources Information Center

Strobl, Carola

2017-01-01

This study explores the potential of a feedback environment using simple string-based pattern matching technology for the provision of automated corrective feedback on cohesion problems. Thirty-eight high-frequent problems, including non-target like use of connectives and co-references were addressed providing both direct and indirect feedback.…

Exploring Potential Uses of ICT in Chinese Language Arts Instruction: Eight Teachers' Perspectives

ERIC Educational Resources Information Center

Lin, Janet Mei-Chuen; Lee, Greg C.; Chen, Hsiu-Yen

2004-01-01

Eight experienced Chinese language arts teachers from a typical junior high school in Taiwan participated in this study to discuss the potential uses of information and communications technologies (ICT) in Chinese language arts instruction. After meeting for 12 roundtable sessions and using a web forum as a supplement for exchanging ideas, they…

Youth Participatory Action Research and Educational Transformation: The Potential of Intertextuality as a Methodological Tool

ERIC Educational Resources Information Center

Bertrand, Melanie

2016-01-01

In this article, Melanie Bertrand explores the potential of using the concept of intertextuality--which captures the way snippets of written or spoken text from one source become incorporated into other sources--in the study and practice of youth participatory action research (YPAR). Though this collective and youth-centered form of research…

The Pedagogical Potential of Drawing and Writing in a Primary Science Multimodal Unit

ERIC Educational Resources Information Center

Wilson, Rachel E.; Bradbury, Leslie U.

2016-01-01

In consideration of the potential of drawing and writing as assessment and learning tools, we explored how early primary students used these modes to communicate their science understandings. The context for this study was a curricular unit that incorporated multiple modes of representation in both the presentation of information and production of…

An Assessment of the Potential Uses of Agonistic Behaviors in Termite Control

Treesearch

Barbara L. Thorne; Michael I. Haverty

1991-01-01

The potential use of termite-termite agonism in pest control is explored and evaluated. Intra-and interspecific en-counters among termites from different colonies are known to result in aggressive or avoidance behaviors in a variety of species. Recent studies suggest, however, that intraspecific confrontations only rarely evoke aggressive responses in several...

Collaborative Science Learning in Three-Dimensional Immersive Virtual Worlds: Pre-Service Teachers' Experiences in Second Life

ERIC Educational Resources Information Center

Nussli, Natalie; Oh, Kevin; McCandless, Kevin

2014-01-01

The purpose of this mixed methods study was to help pre-service teachers experience and evaluate the potential of Second Life, a three-dimensional immersive virtual environment, for potential integration into their future teaching. By completing collaborative assignments in Second Life, nineteen pre-service general education teachers explored an…

Through Their Lens: The Potential of Photovoice for Documentation of Environmental Perspectives among Kenyan Teachers

ERIC Educational Resources Information Center

Quigley, Cassie F.; Dogbey, James; Che, S. Megan; Hallo, Jeffrey; Womac, Patrick

2014-01-01

This study explores the potential of photovoice for understanding environmental perspectives of teachers in the Narok District of Kenya. The objective of this paper is to share this photo-methodology with environmental educators so they may use it as an innovative methodological tool to understand the construction of environmental perspectives.…

Recognizing Academic Potential in Students of Color: Findings of U-STARS~PLUS

ERIC Educational Resources Information Center

Harradine, Christine C.; Coleman, Mary Ruth B.; Winn, Donna-Marie C.

2014-01-01

Students of color are often underrepresented in academic programs for gifted and talented students. This study explored the impact of The Teacher's Observation of Potential in Students (TOPS) tool on teachers' ability to systematically observe and document the academic strengths of 5-to 9-year-old students across nine domains. Teachers indicated…

Ethiopian EFL Teachers' Perceptions and Utilization of Mediational Potentials of the Internet in ELT

ERIC Educational Resources Information Center

Boersma, Emily; Getu, Tesfamichael

2016-01-01

The Internet has immense mediational potential in ELT in terms of providing learners with comprehensible input, a platform for social interaction, and opportunities to produce linguistic output. This study explores EFL teachers' perceptions and utilization of the Internet in ELT at Bahir Dar University (BDU) in Ethiopia; it also identifies the…

The Confidence-Accuracy Relationship in Diagnostic Assessment: The Case of the Potential Difference in Parallel Electric Circuits

ERIC Educational Resources Information Center

Saglam, Murat

2015-01-01

This study explored the relationship between accuracy of and confidence in performance of 114 prospective primary school teachers in answering diagnostic questions on potential difference in parallel electric circuits. The participants were required to indicate their confidence in their answers for each question. Bias and calibration indices were…

Exploring Innovative Solutions for Quality of Life and Care of Bed-Ridden Nursing Home Residents through Codesign Sessions

PubMed Central

van Hoof, J.; Wetzels, M. H.; Dooremalen, A. M. C.; Overdiep, R. A.; Nieboer, M. E.; Eyck, A. M. E.; van Gorkom, P. J. L. M.; Zwerts-Verhelst, E. L. M.; Aarts, S.; Vissers-Luijcks, C.; van der Voort, C. S.; Moonen, M. J. G. A.; van de Vrande, H. A.; van Dijck-Heinen, C. J. M. L.; Wouters, E. J. M.

2015-01-01

Bed-ridden nursing home residents are in need of environments which are homelike and facilitate the provision of care. Design guidance for this group of older people is limited. This study concerned the exploration and generation of innovative environmental enrichment scenarios for bed-ridden residents. This exploration was conducted through a combination of participatory action research with user-centred design involving 56 professional stakeholders in interactive work sessions. This study identified numerous design solutions, both concepts and products that are available on the marketplace and that on a higher level relate to improvements in resident autonomy and the supply of technological items and architectural features. The methodology chosen can be used to explore the creative potential of stakeholders from the domain of healthcare in product innovation. PMID:26543647

Exploring self-compassion and eudaimonic well-being in young women athletes.

PubMed

Ferguson, Leah J; Kowalski, Kent C; Mack, Diane E; Sabiston, Catherine M

2014-04-01

Using a mixed methods research design, we explored self-compassion and eudaimonic well-being in young women athletes. In a quantitative study (n = 83), we found that self-compassion and eudaimonic well-being were positively related (r = .76, p < .01). A model of multiple mediation was proposed, with self-compassion, passivity, responsibility, initiative, and self-determination accounting for 83% of the variance in eudaimonic well-being. In a qualitative study (n = 11), we explored when and how self-compassion might be useful in striving to reach one's potential in sport. Self-compassion was described as advantageous in difficult sport-specific situations by increasing positivity, perseverance, and responsibility, as well as decreasing rumination. Apprehensions about fully embracing a self-compassionate mindset in sport warrant additional research to explore the seemingly paradoxical role of self-compassion in eudaimonic well-being.

The Importance of Returned Martian Samples for Constraining Potential Hazards to Future Human Exploration

NASA Astrophysics Data System (ADS)

iMOST Team; Harrington, A. D.; Carrier, B. L.; Fernandez-Remolar, D. C.; Fogarty, J.; McCoy, J. T.; Rucker, M. A.; Spry, J. A.; Altieri, F.; Amelin, Y.; Ammannito, E.; Anand, M.; Beaty, D. W.; Benning, L. G.; Bishop, J. L.; Borg, L. E.; Boucher, D.; Brucato, J. R.; Busemann, H.; Campbell, K. A.; Czaja, A. D.; Debaille, V.; Des Marais, D. J.; Dixon, M.; Ehlmann, B. L.; Farmer, J. D.; Glavin, D. P.; Goreva, Y. S.; Grady, M. M.; Hallis, L. J.; Hausrath, E. M.; Herd, C. D. K.; Horgan, B.; Humayun, M.; Kleine, T.; Kleinhenz, J.; Mangold, N.; Mackelprang, R.; Mayhew, L. E.; McCubbin, F. M.; McLennan, S. M.; McSween, H. Y.; Moser, D. E.; Moynier, F.; Mustard, J. F.; Niles, P. B.; Ori, G. G.; Raulin, F.; Rettberg, P.; Schmitz, N.; Sefton-Nash, E.; Sephton, M. A.; Shaheen, R.; Shuster, D. L.; Siljestrom, S.; Smith, C. L.; Steele, A.; Swindle, T. D.; ten Kate, I. L.; Tosca, N. J.; Usui, T.; Van Kranendonk, M. J.; Wadhwa, M.; Weiss, B. P.; Werner, S. C.; Westall, F.; Wheeler, R. M.; Zipfel, J.; Zorzano, M. P.

2018-04-01

Thorough characterization and evaluation of returned martian regolith and airfall samples are critical to understanding the potential health and engineering system hazards during future human exploration.

Yoik experiences and possible positive health outcomes: an explorative pilot study.

PubMed

Hämäläinen, Soile; Musial, Frauke; Graff, Ola; Olsen, Torjer A; Salamonsen, Anita

2017-01-01

Yoik is an old vocal music tradition of Sami, the indigenous people inhabiting Northern Fennoscandia and Kola peninsula in Russia. Studies of music therapy (MT) and especially singing have documented improvements in social and overall functioning in people with severe mental disorders and positive effect on depressive symptoms and sleep quality. Possible connections between yoik and health are so far underexplored. The overall aim of this study was to explore whether yoik may have the potential to positively influence people's health and well-being. The research questions were: 1. What are different persons' experiences with yoik? 2. Can yoik experiences be related to health outcomes? Explorative, qualitative interviews with 13 participants were conducted in the Norwegian counties Finnmark, Troms, Nordland, and Trøndelag. The findings suggest qualities in yoik that are comparable to positive effects of Music Therapy (MT) in general. Yoik may contribute to emotion management, i.e. processing negative emotions and inducing positive ones in people acknowledging yoik as something positive. Yoik may be considered an important marker of social and cultural belonging for many Sami people. Yoik seems to have an underresearched potential as an intervention in culture sensitive healthcare and health promotion work that deserves to be further investigated.

Exploring the Relationship between Positive Work Experiences and Women's Sense of Self in the Context of Partner Abuse

ERIC Educational Resources Information Center

Lynch, Shannon M.; Graham-Bermann, Sandra A.

2004-01-01

In this study we examined the relationships among partner abuse, work quality, and women's sense of self. In particular, we explored the potential for women's work to serve as an alternative source of feedback for the self in the context of partner abuse. The sample consisted of 100 working women who reported experiencing a range of partner abuse.…

Cell of Origin: Exploring an Alternative Contributor to Ovarian Cancer

DTIC Science & Technology

2015-12-01

of 60 mice). We previously reported that we conducted simple preliminary studies to assess the potential impact of the retroviral infections on...using primers designed to specifically detect exogenous TP53 gene expression. 12. Simple preliminary studies assessing the potential impact of exogenous...Award was ending and we were delinquent with respect to submission of the Closure report and no longer had access to the funds. Since there was such a

On the thermalization achieved in the reactions involving superheavy nuclei

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

Bansal, Rajni

In the present study, we aim to explore the role of Coulomb potential on the thermalization achieved in the reactions involving superheavy nuclei. Particularly, we shall study the degree of the equilibrium attained in a reaction by the 3D density plots, anisotropy ratio as well as by the rapidity distribution of the nucleons. Our study reveals that the degree of the equilibrium attained in the central reactions of the superheavy nuclei remains unaffected by the Coulomb potential.

Children and Dietary Supplements

MedlinePlus

... Dietary Supplements and Nutraceuticals (Endocrine Practice) [945KB PDF] Probiotics and Children (Journal of Pediatric Gastroenterology and Nutrition) [ ... Two Studies Explore the Potential Health Benefits of Probiotics (07/04/08) Traditional Chinese Herbs May Benefit ...

Innovative railroad information displays : executive summary

DOT National Transportation Integrated Search

1998-01-01

The objectives ofthis study were to explore the potential of advanced digital technology, : novel concepts of information management, geographic information databases and : display capabilities in order to enhance planning and decision-making process...

Exploring the relationship between irrigation water requirements and potential yield in the Huang-Huai-Hai plain

NASA Astrophysics Data System (ADS)

Tang, Huaxiu; Zhan, Jinyan; Deng, Xiangzheng; Ma, Jinsong

2007-11-01

By using the GIS technologies, we interpolate the site-based meteorological data into climatic surface data, which are the main input parameters for the CropWat model, used to estimate the reference evapotranspiration (ET 0). And then by combining the ET 0 with the information on share of cultivated land decoded from the Landsat TM/ETM digital imagines covering the entire case study area, the Huang-Huai-Hai plain, we estimate the amount of irrigation water requirements (IWRs) in the years of 1991 and 2000. We then introduce the potential yield (PY) of cultivated land estimated from the Estimation Model for the Agricultural Productivity Potential (EMAPP) to explore the relationship between the IWRs and the PY . By conducting GIS-based spatial overlay analyses, we explore the positive correlation relationship between the IWRs and the PY of cultivated land. Finally, we conclude that the IWRs is now a constrain factor on the PY of cultivated land in the Huang-Huai-Hai plain in those areas with the irrigation water constrains. The result has offered a scientific basis for the decision makings in the exploitation and utilization of resources and energy as well as the land use planning, protection of the potential yields and the managements of irrigation water at the regional level.

NASA'S Solar System Exploration Research Virtual Institute: An international approach toward bringing science and human exploration together for mutual benefit

NASA Astrophysics Data System (ADS)

Schmidt, Gregory

2016-07-01

The NASA Solar System Exploration Research Virtual Institute (SSERVI) is a virtual institute focused on research at the intersection of science and explora-tion, training the next generation of lunar scientists, and community development. The institute is a hub for opportunities that engage the larger scientific and exploration communities in order to form new interdis-ciplinary, research-focused collaborations. Its relative-ly large domestic teams work together along with in-ternational partners in both traditional and virtual set-tings to bring disparate approaches together for mutual benefit. This talk will describe the research efforts of the nine domestic teams that constitute the U.S. com-plement of the Institute and how it is engaging the in-ternational science and exploration communities through workshops, conferences, online seminars and classes, student exchange programs and internships. The Institute is centered on the scientific aspects of exploration as they pertain to the Moon, Near Earth Asteroids (NEAs) and the moons of Mars. It focuses on interdisciplinary, exploration-related science cen-tered around all airless bodies targeted as potential human destinations. Areas of study reported here will represent the broad spectrum of lunar, NEA, and Mar-tian moon sciences encompassing investigations of the surface, interior, exosphere, and near-space environ-ments as well as science uniquely enabled from these bodies. The technical focus ranges from investigations of plasma physics, geology/geochemistry, technology integration, solar system origins/evolution, regolith geotechnical properties, analogues, volatiles, ISRU and exploration potential of the target bodies. SSERVI enhances the widening knowledgebase of planetary research by acting as a bridge between several differ-ent groups and bringing together researchers from the scientific and exploration communities, multiple disci-plines across the full range of planetary sciences, and domestic and international communities and partner-ships.

What's in a bin: A case study of dental clinical waste composition and potential greenhouse gas emission savings.

PubMed

Richardson, J; Grose, J; Manzi, S; Mills, I; Moles, D R; Mukonoweshuro, R; Nasser, M; Nichols, A

2016-01-22

Dental practices have a unique position as dental staff use a high number of dental materials and instruments on a daily basis. It is unclear how dentists' and dental care professionals' choices and behaviours around selecting and using materials impact on the amount of unnecessary waste production. Although there are a number of articles exploring the quality and quantity of waste in dental practices, there are no studies on organisational strategies to decrease unnecessary waste. There is no clear economic analysis of the impact on associated cost to dental practices which consequently can affect the access of dental care for disadvantaged groups. This study used an audit approach to explore the potential for sustainability in dental practice by measuring the nature and quantity of dental clinical waste, and assessing the feasibility of measuring the financial costs and potential carbon savings in the management of dental clinical waste. The data from our study would appear to support the view that it is possible to reduce carbon emissions and increase profitability. Successful implementation of an environmentally sustainable approach to waste management will be dependent on the practicalities involved and the financial incentives for adopting such practices.

Investigating Pre-service Science Teachers' Developing Professional Knowledge Through the Lens of Differentiated Instruction

NASA Astrophysics Data System (ADS)

Goodnough, Karen

2010-03-01

In this study, the author implemented a problem-based learning (PBL) experience that allowed students in an advanced science methodology course to explore differentiated instruction. Through working systematically in small, collaborative groups, students explored the nature of differentiated instruction. The objective of the study was to examine pre-service teachers’ developing conceptions of differentiated instruction (DI) as a way to teach for diversity. The author adopted action research as a strategy to explore students’ perceptions of DI in the context of science teaching and learning. Several data collection methods and sources were adopted in the study, including student-generated products, student interviews, classroom observation, and journal writing. Outcomes report on students’ perceptions of both the potential and challenges associated with adopting a DI approach to science teaching and learning.

Human eye haptics-based multimedia.

PubMed

Velandia, David; Uribe-Quevedo, Alvaro; Perez-Gutierrez, Byron

2014-01-01

Immersive and interactive multimedia applications offer complementary study tools in anatomy as users can explore 3D models while obtaining information about the organ, tissue or part being explored. Haptics increases the sense of interaction with virtual objects improving user experience in a more realistic manner. Common eye studying tools are books, illustrations, assembly models, and more recently these are being complemented with mobile apps whose 3D capabilities, computing power and customers are increasing. The goal of this project is to develop a complementary eye anatomy and pathology study tool using deformable models within a multimedia application, offering the students the opportunity for exploring the eye from up close and within with relevant information. Validation of the tool provided feedback on the potential of the development, along with suggestions on improving haptic feedback and navigation.

A computationally simplistic poly-phasic approach to explore microbial communities from the Yucatan aquifer as a potential sources of novel natural products.

PubMed

Marfil-Santana, Miguel David; O'Connor-Sánchez, Aileen; Ramírez-Prado, Jorge Humberto; De Los Santos-Briones, Cesar; López-Aguiar; Lluvia, Korynthia; Rojas-Herrera, Rafael; Lago-Lestón, Asunción; Prieto-Davó, Alejandra

2016-11-01

The need for new antibiotics has sparked a search for the microbes that might potentially produce them. Current sequencing technologies allow us to explore the biotechnological potential of microbial communities in diverse environments without the need for cultivation, benefitting natural product discovery in diverse ways. A relatively recent method to search for the possible production of novel compounds includes studying the diverse genes belonging to polyketide synthase pathways (PKS), as these complex enzymes are an important source of novel therapeutics. In order to explore the biotechnological potential of the microbial community from the largest underground aquifer in the world located in the Yucatan, we used a polyphasic approach in which a simple, non-computationally intensive method was coupled with direct amplification of environmental DNA to assess the diversity and novelty of PKS type I ketosynthase (KS) domains. Our results suggest that the bioinformatic method proposed can indeed be used to assess the novelty of KS enzymes; nevertheless, this in silico study did not identify some of the KS diversity due to primer bias and stringency criteria outlined by the metagenomics pipeline. Therefore, additionally implementing a method involving the direct cloning of KS domains enhanced our results. Compared to other freshwater environments, the aquifer was characterized by considerably less diversity in relation to known ketosynthase domains; however, the metagenome included a family of KS type I domains phylogenetically related, but not identical, to those found in the curamycin pathway, as well as an outstanding number of thiolases. Over all, this first look into the microbial community found in this large Yucatan aquifer and other fresh water free living microbial communities highlights the potential of these previously overlooked environments as a source of novel natural products.

National Trainers’ Perspectives on Challenges to Implementation of an Empirically-Supported Mental Health Treatment

PubMed Central

Hanson, Rochelle F.; Gros, Kirstin Stauffacher; Davidson, Tatiana M.; Barr, Simone; Cohen, Judith; Deblinger, Esther; Mannarino, Anthony P.; Ruggiero, Kenneth J.

2013-01-01

This study examined perceived challenges to implementation of an empirically supported mental health treatment for youth (Trauma-Focused Cognitive Behavioral Therapy; TF-CBT) and explored the potential use of technology-based resources in treatment delivery. Thematic interviews were conducted with 19 approved national TF-CBT trainers to assess their perspectives about challenges to implementation of TF-CBT and to explore their perceptions about the potential value of innovative, technology-based solutions to enhance provider fidelity and improve quality of care. These data offer some important insights and implications for training in evidence-based treatments, provider fidelity and competence, and patient engagement, particularly for those interventions targeting trauma-related symptoms among youth. PMID:23605292

Resource Prospector: An Update on the Lunar Volatiles Prospecting and ISRU Demonstration Mission

NASA Technical Reports Server (NTRS)

Colaprete, A.; Elphic, R.; Andrews, D.; Trimble, J.; Bluethmann, B.; Quinn, J.; Chavers, G.

2016-01-01

Over the last two decades a wealth of new observations of the moon have demonstrated a lunar water system dramatically more complex and rich than was deduced following the Apollo era. Lunar water, and other volatiles, have the potential to be a valuable or enabling resource for future exploration. The NASA Human Exploration and Operations Mission Directorate (HEOMD) have selected a lunar volatiles prospecting mission for a concept study and potential flight in CY2021. The mission includes a rover-borne payload that (1) can locate surface and near-subsurface volatiles, (2) excavate and analyze samples of the volatile-bearing regolith, and (3) demonstrate the form, extractability and usefulness of the materials.

Resource Prospector: An Update on the Lunar Volatiles Prospecting and ISRU Demonstration Mission

NASA Technical Reports Server (NTRS)

Colaprete, A.; Elphic, R.; Andrews, D.; Trimble, J.; Bluethmann, B.; Quinn, J.; Chavers, G.

2017-01-01

Over the last two decades a wealth of new observations of the moon have demonstrated a lunar water system dramatically more complex and rich than was deduced following the Apollo era. Lunar water, and other volatiles, have the potential to be a valuable or enabling resource for future exploration. The NASA Human Exploration and Operations Mission Directorate (HEOMD) have selected a lunar volatiles prospecting mission for a concept study and potential flight in CY2021. The mission includes a rover-borne payload that (1) can locate surface and near-subsurface volatiles, (2) excavate and analyze samples of the volatile- bearing regolith, and (3) demonstrate the form, extractability and usefulness of the materials.

Innovative railroad information displays : video guide

DOT National Transportation Integrated Search

1998-01-01

The objectives of this study were to explore the potential of advanced digital technology, : novel concepts of information management, geographic information databases and : display capabilities in order to enhance planning and decision-making proces...

Resource Exploration Approaches on Mars Using Multidisciplinary Earth-based Techniques

NASA Astrophysics Data System (ADS)

Wyrick, D. Y.; Ferrill, D. A.; Morris, A. P.; Smart, K. J.

2005-12-01

Water is the most important Martian exploration target - key to finding evidence of past life and providing a crucial resource for future exploration. Water is thought to be present in vapor, liquid, and ice phases on Mars. Except for ice in polar regions, little direct evidence of current surface accumulation of water has been found. Existing research has addressed potential source areas, including meteoric water, glacial ice, and volcanic centers and areas of discharge such as large paleo-outflow channels. Missing from these analyses is characterization of migration pathways of water in the subsurface from sources to discharge areas, and the present distribution of water. It has been estimated that ~90% of the global inventory of water on Mars resides in the subsurface. Targeting potential subsurface accumulations has relied primarily on theoretical modeling and geomorphic analysis. While global scale thermal modeling and analysis of the stability of ground ice provide important constraints on potential locations of large deposits of ice or liquid water, these studies have not accounted for variations in stratigraphy and structure that may strongly influence local distribution. Depth to water or ice on Mars is thought to be controlled primarily by latitude and elevation. However, the distribution of outflow channels clearly indicates that structural, stratigraphic, and geomorphic features all play important roles in determining past and present distribution of water and ice on Mars as they do on Earth. Resource exploration and extraction is a multi-billion dollar industry on Earth that has developed into a highly sophisticated enterprise with constantly improving exploration technologies. Common to all successful exploration programs, whether for hydrocarbons or water, is detailed analysis and integration of all available geologic, geophysical and remotely sensed data. The primary issues for identification and characterization of water or hydrocarbon resource accumulations can be summarized by three factors: trap, reservoir and charge. This presentation focuses on a detailed characterization of the fundamental elements believed to control trap, reservoir, and charge with respect to the identification of locations for extractable resources on Mars, primarily water and ice, but also gas hydrates. This new approach to resource exploration will also provide guidance for future research and exploration activities, including movement of methane from the subsurface to the surface and potential habitat sites for past or current life on Mars.

Targeting, Segmenting and Positioning the Market for College Students to Increase Customer Satisfaction and Overall Performance

ERIC Educational Resources Information Center

Wright, Robert E.

2008-01-01

Numerous studies have explored the relationship between marketing efforts and firm financial performance. Studies have looked at potential lifetime value of customers, to demonstrate the value of keeping customers. Various other studies have looked at the relationship between customer satisfaction and firm performance. However, few studies have…

Defense Science Board (DSB) Summer Study Report on Strategic Surprise

DTIC Science & Technology

2015-07-01

against changing priorities. The study focused on potential regrets in eight areas and provides recommendations to avoid strategic surprise in those...explore potential changes for  Department of Defense priorities as well as possible actions and hedges to strategic surprise and  avoid   potential  regrets ...similar surprises—and to  avoid   regretting  actions or lack  of action taken today—the study evaluated several key mission and enterprise areas. Some of

The Relationship between Fluid Intelligence and Learning Potential: Is There an Interaction with Attentional Control?

ERIC Educational Resources Information Center

Filicková, Marta; Ropovik, Ivan; Bobaková, Monika; Kovalcíková, Iveta

2015-01-01

The main aim of the study was to explore the relationship between fluid intelligence (gf), attentional control (AC), and learning potential (LP), and to investigate the interaction effect between gf and AC on LP. The sample comprised 210 children attending the fourth grade of a standard elementary school. It was hypothesized that the extent of the…

Perceived Stressors of Suicide and Potential Prevention Strategies for Suicide among Youths in Malaysia

ERIC Educational Resources Information Center

Kok, Jin Kuan; van Schalkwyk, Gertina J.; Chan, Andrea Huan Wen

2015-01-01

The suicide rate among youths in Malaysia has increased over the years, giving rise to considerable public concern. The purpose of this study was to explore and describe potential stressors of suicide and suicide prevention strategies as perceived by youths in Malaysia aged 15-25 years. A qualitative approach was adopted and 625 students from…

Exploring the Potential of Computer and Video Games for Health and Physical Education: A Literature Review

ERIC Educational Resources Information Center

Papastergiou, Marina

2009-01-01

This study aims at critically reviewing recently published scientific literature on the use of computer and video games in Health Education (HE) and Physical Education (PE) with a view: (a) to identifying the potential contribution of the incorporation of electronic games as educational tools into HE and PE programs, (b) to present a synthesis of…

Investigating the Potential of Computer Environments for the Teaching and Learning of Functions: A Double Analysis from Two Research Traditions

ERIC Educational Resources Information Center

Lagrange, Jean-Baptiste; Psycharis, Giorgos

2014-01-01

The general goal of this paper is to explore the potential of computer environments for the teaching and learning of functions. To address this, different theoretical frameworks and corresponding research traditions are available. In this study, we aim to network different frameworks by following a "double analysis" method to analyse two…

Fostering EFL Learners' Autonomy in Light of Portfolio Assessment: Exploring the Potential Impact of Gender

ERIC Educational Resources Information Center

Hashemian, Mahmood; Fadaei, Batool

2013-01-01

The purpose of this study was to investigate the impact of portfolio assessment as a process-oriented mechanism on the autonomy of Iranian advanced EFL learners. A particular concern was to examine the potential effect of gender on portfolio assessment by taking the learners' writing ability into account. The participants were 80 male and female…

Estimating aggregate regional user on-time reliability benefit from pre-trip ATIS : Seattle case study

DOT National Transportation Integrated Search

2003-12-01

This study explores the on-time reliability benefits to potential users of a personalized advanced traveler information system (ATIS) providing real-time pre-trip roadway information for the Seattle morning peak period through the application of Heur...

Teacher Evaluation Models: Compliance or Growth Oriented?

ERIC Educational Resources Information Center

Clenchy, Kelly R.

2017-01-01

This research study reviewed literature specific to the evolution of teacher evaluation models and explored the effectiveness of standards-based evaluation models' potential to facilitate professional growth. The researcher employed descriptive phenomenology to conduct a study of teachers' perceptions of a standard-based evaluation model's…

Mineral resource potential map of the Great Rift Instant Study Area, Blaine, Butte, Minidoka, and Power counties, Idaho

USGS Publications Warehouse

Ridenour, James; Stotelmeyer, Ronald B.; Kuntz, Mel A.; Mabey, Don R.; Champion, Duane E.; Lefebvre, Richard H.; Stanley, W.D.

1983-01-01

Locating speculative resources (uraniferous sediment, auriferous gravel, and geothermal reservoirs) and hypothetical resources (oil and gas) that may underlie the geologically young lava flows of the study area would require extensive geophysical exploration and drilling.

A Case Study Approach to Marine and Aquatic Issues.

ERIC Educational Resources Information Center

Snively, Gloria

1993-01-01

Suggests using case studies of resource management conflict involving marine and aquatic resource issues to increase student involvement in decision-making processes. Provides information for a potential case involving oyster farms and six steps to help students explore problems and make decisions. (MDH)

Factors Underlying the Public's Credibility Perceptions in Educational Evaluations

ERIC Educational Resources Information Center

Jacobson, Miriam R.

2016-01-01

Understanding how evaluation audiences perceive credibility can help evaluators design evaluations and reports that support appropriate use. While researchers have studied credibility assessment among various educational stakeholders, little research has been conducted with the broader public. This study explored potential factors affecting the…

Virtual reality and brain computer interface in neurorehabilitation

PubMed Central

Dahdah, Marie; Driver, Simon; Parsons, Thomas D.; Richter, Kathleen M.

2016-01-01

The potential benefit of technology to enhance recovery after central nervous system injuries is an area of increasing interest and exploration. The primary emphasis to date has been motor recovery/augmentation and communication. This paper introduces two original studies to demonstrate how advanced technology may be integrated into subacute rehabilitation. The first study addresses the feasibility of brain computer interface with patients on an inpatient spinal cord injury unit. The second study explores the validity of two virtual environments with acquired brain injury as part of an intensive outpatient neurorehabilitation program. These preliminary studies support the feasibility of advanced technologies in the subacute stage of neurorehabilitation. These modalities were well tolerated by participants and could be incorporated into patients' inpatient and outpatient rehabilitation regimens without schedule disruptions. This paper expands the limited literature base regarding the use of advanced technologies in the early stages of recovery for neurorehabilitation populations and speaks favorably to the potential integration of brain computer interface and virtual reality technologies as part of a multidisciplinary treatment program. PMID:27034541

Protective Factors in American Indian Communities and Adolescent Violence

PubMed Central

Pu, Jia; Chewning, Betty; St. Clair, Iyekiyapiwin Darlene; Kokotailo, Patricia K; Lacourt, Jeanne; Wilson, Dale

2014-01-01

Purpose With their distinct cultural heritage and rural boundaries, American Indian reservation communities offer a unique opportunity to explore protective factors that help buffer adolescents from potential risk behaviors such as violence. Prior published research on Indian communities has not explored three potential protective factors for violence - parental monitoring of adolescents and friends, adolescents’ self-efficacy to avoid fighting, and adolescents’ interest in learning more about their traditional culture. This paper explores the relationship between these factors and reduced risk of reported violence. Methods In 1998, 630 American Indian students in grades 6–12 were surveyed in five Midwestern, rural Indian reservation schools. Path analysis was used to identify the direct and indirect association of the three potential protective factors with reduced violence behavior. Results There were significant gender differences both in perceived parental monitoring and in adolescents’ self-efficacy. For female adolescents, parental monitoring had the strongest inverse relationship with female adolescents’ involvement in violence. Female adolescents’ self-efficacy and their interest in learning more about their culture were also inversely associated with violence and therefore potentially important protectors. Male adolescents who reported more interest in learning the tribe’s culture had better self-efficacy to avoid violence. However, self-efficacy did not successfully predict their reported involvement in peer violence. Conclusions These findings support exploring gender differences, parental monitoring, self-efficacy training as well as cultural elements in future violence intervention studies. Further investigation is needed to identify protective factors for risk behaviors among male adolescents and test the generalizability to non-reservation based adolescents. PMID:22926269

Characterizing Potentially Preventable Admissions: A Mixed Methods Study of Rates, Associated Factors, Outcomes, and Physician Decision-Making.

PubMed

Daniels, Lisa M; Sorita, Atsushi; Kashiwagi, Deanne T; Okubo, Masashi; Small, Evan; Polley, Eric C; Sawatsky, Adam P

2018-05-01

Potentially preventable admissions are a target for healthcare cost containment. To identify rates of, characterize associations with, and explore physician decision-making around potentially preventable admissions. A comparative cohort study was used to determine rates of potentially preventable admissions and to identify associated factors and patient outcomes. A qualitative case study was used to explore physicians' clinical decision-making. Patients admitted from the emergency department (ED) to the general medicine (GM) service over a total of 4 weeks were included as cases (N = 401). Physicians from both emergency medicine (EM) and GM that were involved in the cases were included (N = 82). Physicians categorized admissions as potentially preventable. We examined differences in patient characteristics, admission characteristics, and patient outcomes between potentially preventable and control admissions. Interviews with participating physicians were conducted and transcribed. Transcriptions were systematically analyzed for key concepts regarding potentially preventable admissions. EM and GM physicians categorized 22.2% (90/401) of admissions as potentially preventable. There were no significant differences between potentially preventable and control admissions in patient or admission characteristics. Potentially preventable admissions had shorter length of stay (2.1 vs. 3.6 days, p < 0.001). There was no difference in other patient outcomes. Physicians discussed several provider, system, and patient factors that affected clinical decision-making around potentially preventable admissions, particularly in the "gray zone," including risk of deterioration at home, the risk of hospitalization, the cost to the patient, and the presence of outpatient resources. Differences in provider training, risk assessment, and provider understanding of outpatient access accounted for differences in decisions between EM and GM physicians. Collaboration between EM and GM physicians around patients in the gray zone, focusing on patient risk, cost, and outpatient resources, may provide an avenues for reducing potentially preventable admissions and lowering healthcare spending.

Effects of Density Stratification in Compressible Polytropic Convection

NASA Astrophysics Data System (ADS)

Manduca, Cathryn M.; Anders, Evan H.; Bordwell, Baylee; Brown, Benjamin P.; Burns, Keaton J.; Lecoanet, Daniel; Oishi, Jeffrey S.; Vasil, Geoffrey M.

2017-11-01

We study compressible convection in polytropically-stratified atmospheres, exploring the effect of varying the total density stratification. Using the Dedalus pseudospectral framework, we perform 2D and 3D simulations. In these experiments we vary the number of density scale heights, studying atmospheres with little stratification (1 density scale height) and significant stratification (5 density scale heights). We vary the level of convective driving (quantified by the Rayleigh number), and study flows at similar Mach numbers by fixing the initial superadiabaticity. We explore the differences between 2D and 3D simulations, and in particular study the equilibration between different reservoirs of energy (kinetic, potential and internal) in the evolved states.

Towards a Developing Construct in Dance Education--Exploring the Relation of Emotional Intelligence to Teacher's Sense of Efficacy and Teaching Experience among Dance Education Student Teachers in the United Kingdom

ERIC Educational Resources Information Center

Wenn, Britta; Mulholland, Rosemary; Timmons, Wendy; Zanker, Yvonne

2018-01-01

Theories of emotional intelligence (EI) have already been applied successfully in the field of education, and EI has been found to predict different aspects of teaching such as influencing teachers' self-efficacy beliefs (TSEB). This study aims to explore potential associations between EI, TSEB, and length of teaching experience amongst dance…

Man's future in space

NASA Technical Reports Server (NTRS)

Freitag, R. F.

1975-01-01

Studies evaluating potential operational and commercial uses of space are being conducted, taking into account astronomy, astrophysics, manned bases and laboratories in earth orbit, space colonization, terrestrial communications, space processing and manufacturing, interstellar probes, planetary exploration, and the use of space for terrestrial energy supply. The present status in the exploration of the solar system is examined, giving attention to Jupiter, Venus, Mars, and Mercury. A brief outline of the development of human colonies on Mars is presented.

From a lunar outpost to Mars - Science, policy and the U.S. Space Exploration Initiative

NASA Technical Reports Server (NTRS)

Pilcher, Carl B.

1992-01-01

The technological developments required for the Space Exploration Initiative (SEI) objectives are discussed in terms of scientific investigation and present U.S. space policy. The results of the 90-Day Study are listed which include explicit suggestions for the successful exploration of the moon and Mars. The Outreach/Synthesis program is described which provides four methods for eliciting ideas, technologies, and research venues for lunar and Martian missions. The results of the studies include 5 scientific objectives such as the relationship between the sun, planetary atmospheres, and climate. The protection of human life from potential extraterrestrial hazards such as radiation is also found to be a key objective of SEI as are the theoretical and practical issues of scientific research.

Midlatitude ice-rich ground on mars as a target in the search for evidence of life and for in situ resource utilization on human missions.

PubMed

Heldmann, J L; Schurmeier, L; McKay, C; Davila, A; Stoker, C; Marinova, M; Wilhelm, M B

2014-02-01

Midlatitude ground ice on Mars is of significant scientific interest for understanding the history and evolution of ice stability on Mars and is relevant for human exploration as a possible in situ resource. For both science and exploration, assessing the astrobiological potential of the ice is important in terms of (1) understanding the potential for life on Mars and (2) evaluating the presence of possible biohazards in advance of human exploration. In the present study, we review the evidence for midlatitude ground ice on Mars, discuss the possible explanations for its occurrence, and assess its potential habitability. During the course of study, we systematically analyzed remote-sensing data sets to determine whether a viable landing site exists in the northern midlatitudes to enable a robotic mission that conducts in situ characterization and searches for evidence of life in the ice. We classified each site according to (1) presence of polygons as a proxy for subsurface ice, (2) presence and abundance of rough topographic obstacles (e.g., large cracks, cliffs, uneven topography), (3) rock density, (4) presence and abundance of large boulders, and (5) presence of craters. We found that a suitable landing site exists within Amazonis Planitia near ground ice that was recently excavated by a meteorite impact.

The use of marine-derived bioactive compounds as potential hepatoprotective agents

PubMed Central

Nair, Dileep G; Weiskirchen, Ralf; Al-Musharafi, Salma K

2015-01-01

The marine environment may be explored as a rich source for novel drugs. A number of marine-derived compounds have been isolated and identified, and their therapeutic effects and pharmacological profiles are characterized. In the present review, we highlight the recent studies using marine compounds as potential hepatoprotective agents for the treatment of liver fibrotic diseases and discuss the proposed mechanisms of their activities. In addition, we discuss the significance of similar studies in Oman, where the rich marine life provides a potential for the isolation of novel natural, bioactive products that display therapeutic effects on liver diseases. PMID:25500871

Can We Power Future Mars Missions?

NASA Technical Reports Server (NTRS)

Balint, Tibor S.; Sturm, Erick J., II; Woolley, Ryan C.; Jordan, James F.

2006-01-01

The Vision for Space Exploration identified the exploration of Mars as one of the key pathways. In response, NASAs Mars Program Office is developing a detailed mission lineup for the next decade that would lead to future explorations. Mission architectures for the next decade include both orbiters and landers. Existing power technologies, which could include solar panels, batteries, radioisotope power systems, and in the future fission power, could support these missions. Second and third decade explorations could target human precursor and human in-situ missions, building on increasingly complex architectures. Some of these could use potential feed forward from earlier Constellation missions to the Moon, discussed in the ESAS study. From a potential Mars Sample Return mission to human missions the complexity of the architectures increases, and with it the delivered mass and power requirements also amplify. The delivered mass at Mars mostly depends on the launch vehicle, while the landed mass might be further limited by EDL technologies, including the aeroshell, parachutes, landing platform, and pinpoint landing. The resulting in-situ mass could be further divided into payload elements and suitable supporting power systems. These power systems can range from tens of watts to multi-kilowatts, influenced by mission type, mission configuration, landing location, mission duration, and season. Regardless, the power system design should match the power needs of these surface assets within a given architecture. Consequently, in this paper we will identify potential needs and bounds of delivered mass and architecture dependent power requirements to surface assets that would enable future in-situ exploration of Mars.

Return of the Lambkins: Practice Makes Perfect at Colorado Science Bowl |

Science.gov Websites

study and potential careers in science, technology, engineering, and math (STEM). "Science Bowl school students to explore math and science. Now, the competition attracts approximately 15,000 students

Assessing the Market Potential for New Programs.

ERIC Educational Resources Information Center

Voorhees, Richard A.

1987-01-01

A case study of Arapahoe Community College's marketing research approach to program planning illustrates a range of techniques for heightening alertness to new markets, exploring rising opportunities, and sometimes, quantifying the attractiveness of alternatives. (Author/MSE)

A capping case study : integrating freight rail into a community setting.

DOT National Transportation Integrated Search

2011-11-01

"This investigation seeks to explore specific design solutions that could potentially enhance the capabilities of heavy rail facilities while increasing : their safety and reducing their environmental and community impacts. : Using Portland's Brookly...

In Silico Studies of the Toxcast Chemicals Interacting with Biomolecular targets

EPA Science Inventory

Molecular docking, a structure-based in silico tool for chemical library pre-screening in drug discovery, can be used to explore the potential toxicity of environmental chemicals acting at specific biomelcular targets.

Targeting Lysine Deacetylases (KDACs) in Parasites

PubMed Central

Wang, Qi; Rosa, Bruce A.; Nare, Bakela; Powell, Kerrie; Valente, Sergio; Rotili, Dante; Mai, Antonello; Marshall, Garland R.; Mitreva, Makedonka

2015-01-01

Due to an increasing problem of drug resistance among almost all parasites species ranging from protists to worms, there is an urgent need to explore new drug targets and their inhibitors to provide new and effective parasitic therapeutics. In this regard, there is growing interest in exploring known drug leads of human epigenetic enzymes as potential starting points to develop novel treatments for parasitic diseases. This approach of repurposing (starting with validated targets and inhibitors) is quite attractive since it has the potential to reduce the expense of drug development and accelerate the process of developing novel drug candidates for parasite control. Lysine deacetylases (KDACs) are among the most studied epigenetic drug targets of humans, and a broad range of small-molecule inhibitors for these enzymes have been reported. In this work, we identify the KDAC protein families in representative species across important classes of parasites, screen a compound library of 23 hydroxamate- or benzamide-based small molecules KDAC inhibitors, and report their activities against a range of parasitic species, including the pathogen of malaria (Plasmodium falciparum), kinetoplastids (Trypanosoma brucei and Leishmania donovani), and nematodes (Brugia malayi, Dirofilaria immitis and Haemonchus contortus). Compound activity against parasites is compared to that observed against the mammalian cell line (L929 mouse fibroblast) in order to determine potential parasite-versus-host selectivity). The compounds showed nanomolar to sub-nanomolar potency against various parasites, and some selectivity was observed within the small panel of compounds tested. The possible binding modes of the active compounds at the different protein target sites within different species were explored by docking to homology models to help guide the discovery of more selective, parasite-specific inhibitors. This current work supports previous studies that explored the use of KDAC inhibitors in targeting Plasmodium to develop new anti-malarial treatments, and also pioneers experiments with these KDAC inhibitors as potential new anthelminthics. The selectivity observed begins to address the challenges of targeting specific parasitic diseases while limiting host toxicity. PMID:26402733

Estimation of potential distribution of gas hydrate in the northern South China Sea

NASA Astrophysics Data System (ADS)

Wang, Chunjuan; Du, Dewen; Zhu, Zhiwei; Liu, Yonggang; Yan, Shijuan; Yang, Gang

2010-05-01

Gas hydrate research has significant importance for securing world energy resources, and has the potential to produce considerable economic benefits. Previous studies have shown that the South China Sea is an area that harbors gas hydrates. However, there is a lack of systematic investigations and understanding on the distribution of gas hydrate throughout the region. In this paper, we applied mineral resource quantitative assessment techniques to forecast and estimate the potential distribution of gas hydrate resources in the northern South China Sea. However, current hydrate samples from the South China Sea are too few to produce models of occurrences. Thus, according to similarity and contrast principles of mineral outputs, we can use a similar hydrate-mining environment with sufficient gas hydrate data as a testing ground for modeling northern South China Sea gas hydrate conditions. We selected the Gulf of Mexico, which has extensively studied gas hydrates, to develop predictive models of gas hydrate distributions, and to test errors in the model. Then, we compared the existing northern South China Sea hydrate-mining data with the Gulf of Mexico characteristics, and collated the relevant data into the model. Subsequently, we applied the model to the northern South China Sea to obtain the potential gas hydrate distribution of the area, and to identify significant exploration targets. Finally, we evaluated the reliability of the predicted results. The south seabed area of Taiwan Bank is recommended as a priority exploration target. The Zhujiang Mouth, Southeast Hainan, and Southwest Taiwan Basins, including the South Bijia Basin, also are recommended as exploration target areas. In addition, the method in this paper can provide a useful predictive approach for gas hydrate resource assessment, which gives a scientific basis for construction and implementation of long-term planning for gas hydrate exploration and general exploitation of the seabed of China.

A Procedure for Studying the Cognitive Processes Used During Problem Solving: An Exploratory Study.

ERIC Educational Resources Information Center

Lester, Frank K., Jr.

This study explores the potential effectiveness of a new procedure for identifying and studying certain of the cognitive processes used during problem solving. The procedure is used in an attempt to categorize the types of conceptual thinking problem solvers employ, to study trial-and-error behavior, and to investigate problem solvers' abilities…

The impact of the college environment on Black students' access to a medical school education

NASA Astrophysics Data System (ADS)

Butler, Barbara Marie

2009-12-01

The focus of this study was to explore factors influencing the disparity in the acceptance rate for African American students into medical school as compared to their white counterparts. This study compared the college environment of Historically Black Colleges and Universities and Principally White Institutions, with respect to African American students' perceptions regarding their college experiences and the extent to which they perceived that their experiences enhanced or diminished their success in gaining access to medical school. The community cultural wealth framework was used to explore whether the HBCU or the PWI is the better environment for undergraduate science majors. By use of the CCW framework the study explored which college environment nurtured students to be successful as a biology major, obtain a competitive MCAT score and ultimately secure acceptance into medical school. A qualitative research design served as the best approach to explore the object of inquiry in this study: the students' perception of their college environment, and their perceptions of their college experiences. The findings suggest that both the HBCU and the PWI reveal characteristics that enhanced and diminished the potential for success in the biology pre-med program. The results of this study specifically addressed barriers to access as factors which may be contributing to the disparities in the number of African American students admitted to medical school. These barriers are related to differences in the social dynamics of the university. In this study both groups of students perceived that there were the negative faculty attitudes, but these seemed to have little impact on access to medical school. Student motivation and identification with a supportive community seemed to have more impact on the potential for career success.

Volcanostratigraphic Approach for Evaluation of Geothermal Potential in Galunggung Volcano

NASA Astrophysics Data System (ADS)

Ramadhan, Q. S.; Sianipar, J. Y.; Pratopo, A. K.

2016-09-01

he geothermal systems in Indonesia are primarily associated with volcanoes. There are over 100 volcanoes located on Sumatra, Java, and in the eastern part of Indonesia. Volcanostratigraphy is one of the methods that is used in the early stage for the exploration of volcanic geothermal system to identify the characteristics of the volcano. The stratigraphy of Galunggung Volcano is identified based on 1:100.000 scale topographic map of Tasikmalaya sheet, 1:50.000 scale topographic map and also geological map. The schematic flowchart for evaluation of geothermal exploration is used to interpret and evaluate geothermal potential in volcanic regions. Volcanostratigraphy study has been done on Galunggung Volcano and Talaga Bodas Volcano, West Java, Indonesia. Based on the interpretation of topographic map and analysis of the dimension, rock composition, age and stress regime, we conclude that both Galunggung Volcano and Talaga Bodas Volcano have a geothermal resource potential that deserve further investigation.

Parenting stress and anger expression as predictors of child abuse potential.

PubMed

Rodriguez, C M; Green, A J

1997-04-01

To explore one potential pathway to physical child abuse, the present investigation used hierarchical regression analysis using measures of parenting stress and anger expression to jointly predict child abuse potential. The Parenting Stress Index, State-Trait Anger Expression Inventory, and the Child Abuse Potential Inventory were administered to two different samples of New Zealand parents. As expected, both studies revealed parenting stress and anger expression and were individually positively correlated with child abuse potential: the major finding involved the strong point contribution of parenting stress and anger expression in predicting Child Abuse Potential Inventory scores. Application of findings for intervention and prevention are discussed.

Science and Reconnaissance from the Europa Clipper Mission Concept: Exploring Europa's Habitability

NASA Astrophysics Data System (ADS)

Pappalardo, Robert; Senske, David; Prockter, Louise; Paczkowski, Brian; Vance, Steve; Goldstein, Barry; Magner, Thomas; Cooke, Brian

2015-04-01

Europa is recognized by the Planetary Science De-cadal Survey as a prime candidate to search for a pre-sent-day habitable environment in our solar system. As such, NASA has pursued a series of studies, facilitated by a Europa Science Definition Team (SDT), to define a strategy to best advance our scientific understanding of this icy world with the science goal: Explore Europa to investigate its habitability. (In June of 2014, the SDT completed its task of identifying the overarching science objectives and investigations.) Working in concert with a technical team, a set of mission archi-tectures were evaluated to determine the best way to achieve the SDT defined science objectives. The fa-vored architecture would consist of a spacecraft in Ju-piter orbit making many close flybys of Europa, con-centrating on remote sensing to explore the moon. In-novative mission design would use gravitational per-turbations of the spacecraft trajectory to permit flybys at a wide variety of latitudes and longitudes, enabling globally distributed regional coverage of Europa's sur-face, with nominally 45 close flybys, typically at alti-tudes from 25 to 100 km. This concept has become known as the Europa Clipper. The Europa SDT recommended three science ob-jectives for the Europa Clipper: Ice Shell and Ocean: Characterize the ice shell and any subsurface water, including their heterogeneity, ocean properties, and the nature of surface-ice-ocean exchange; Composition: Understand the habitability of Europa's ocean through composition and chemistry; and Geology: Understand the formation of surface features, including sites of recent or current activity, and characterize high science interest localities. The Europa SDT also considered implications of the Hubble Space Telescope detection of possible plumes at Europa. To feed forward to potential subsequent future ex-ploration that could be enabled by a lander, it was deemed that the Europa Clipper mission concept should provide the capability to perform reconnais-sance for a future lander. In consultation with NASA Headquarters, the SDT developed a reconnaissance goal: Characterize Scientifically Compelling Sites, and Hazards, for a Potential Future Landed Mission to Europa. This leads to two reconnaissance objectives: Site Safety: Assess the distribution of surface hazards, the load-bearing capacity of the surface, the structure of the subsurface, and the regolith thickness; and Sci-ence Value: Assess the composition of surface materi-als, the geologic context of the surface, the potential for geological activity, the proximity of near surface water, and the potential for active upwelling of ocean material. The Europa Clipper mission concept provides an efficient means to explore Europa and investigate its habitability through understanding the satellite's ice shell and ocean, composition, and geology. It also provides for surface reconnaissance for potential future landed exploration of Europa. Development of the Eu-ropa Clipper mission concept is ongoing, with current studies focusing on spacecraft design trades and re-finements, launch vehicle options (EELV and SLS), and power source (MMRTG and solar), to name a few. We will provide an update on status of the science and reconnaissance effort, as well as the results of trade studies as relevant to the science and reconnaissance potential of the mission concept.

A Longitudinal Study of the Talent Search Program

ERIC Educational Resources Information Center

Brewer, Ernest W.; Landers, Jama McMahan

2005-01-01

This longitudinal study examined the impact of participation in the federally funded Talent Search program at The University of Tennessee, Knoxville. The Talent Search program provides career exploration and counseling services to low-income students with the potential to be first-generation college graduates. Postsecondary education enrollment…

Informetrics: Exploring Databases as Analytical Tools.

ERIC Educational Resources Information Center

Wormell, Irene

1998-01-01

Advanced online search facilities and information retrieval techniques have increased the potential of bibliometric research. Discusses three case studies carried out by the Centre for Informetric Studies at the Royal School of Library Science (Denmark) on the internationality of international journals, informetric analyses on the World Wide Web,…

Soil changes after four years of organic vegetable production

USDA-ARS?s Scientific Manuscript database

In 2002, scientists at the Lane Agricultural Center in southeastern Oklahoma began a study to explore the potential for organic agricultural production. Land was certified as organic according to the guidelines of the National Organic Program. At the beginning of the study, soil samples were taken...

Low-Latency Science Exploration of Planetary Bodies: How ISS Might Be Used as Part of a Low-Latency Analog Campaign for Human Exploration

NASA Technical Reports Server (NTRS)

Thronson, Harley; Valinia, Azita; Bleacher, Jacob; Eigenbrode, Jennifer; Garvin, Jim; Petro, Noah

2014-01-01

We suggest that the International Space Station be used to examine the application and validation of low-latency telepresence for surface exploration from space as an alternative, precursor, or potentially as an adjunct to astronaut "boots on the ground." To this end, controlled experiments that build upon and complement ground-based analog field studies will be critical for assessing the effects of different latencies (0 to 500 milliseconds), task complexity, and alternate forms of feedback to the operator. These experiments serve as an example of a pathfinder for NASA's roadmap of missions to Mars with low-latency telerobotic exploration as a precursor to astronaut's landing on the surface to conduct geological tasks.

Low-latency Science Exploration of Planetary Bodies: a Demonstration Using ISS in Support of Mars Human Exploration

NASA Technical Reports Server (NTRS)

Thronson, Harley A.; Valinia, Azita; Bleacher, Jacob; Eigenbrode, Jennifer; Garvin, Jim; Petro, Noah

2014-01-01

We summarize a proposed experiment to use the International Space Station to formally examine the application and validation of low-latency telepresence for surface exploration from space as an alternative, precursor, or potentially as an adjunct to astronaut "boots on the ground." The approach is to develop and propose controlled experiments, which build upon previous field studies and which will assess the effects of different latencies (0 to 500 msec), task complexity, and alternate forms of feedback to the operator. These experiments serve as an example of a pathfinder for NASA's roadmap of missions to Mars with low-latency telerobotic exploration as a precursor to astronaut's landing on the surface to conduct geological tasks.

Size does matter - span of control in hospitals.

PubMed

Holm-Petersen, Christina; Østergaard, Sussanne; Andersen, Per Bo Noergaard

2017-04-10

Purpose Centralization, mergers and cost reductions have generally led to increasing levels of span of control (SOC), and thus potentially to lower leadership capacity. The purpose of this paper is to explore how a large SOC impacts hospital staff and their leaders. Design/methodology/approach The study is based on a qualitative explorative case study of three large inpatient wards. Findings The study finds that the nursing staff and their frontline leaders experience challenges in regard to visibility and role of the leader, e.g., in creating overview, coordination, setting-up clear goals, following up and being in touch. However, large wards also provide flexibility and development possibilities. Practical implications The authors discuss the implications of these findings for decision makers in deciding future SOC and for future SOC research. Originality/value Only few studies have qualitatively explored the consequences of large SOC in hospitals.

Technology Needs to Support Future Mars Exploration

NASA Technical Reports Server (NTRS)

Nilsen, Erik N.; Baker, John; Lillard, Randolph P.

2013-01-01

The Mars Program Planning Group (MPPG) under the direction of Dr. Orlando Figueroa, was chartered to develop options for a program-level architecture for robotic exploration of Mars consistent with the objective to send humans to Mars in the 2030's. Scientific pathways were defined for future exploration, and multiple architectural options were developed that meet current science goals and support the future human exploration objectives. Integral to the process was the identification of critical technologies which enable the future scientific and human exploration goals. This paper describes the process for technology capabilities identification and examines the critical capability needs identified in the MPPG process. Several critical enabling technologies that have been identified to support the robotic exploration goals and with potential feedforward application to human exploration goals. Potential roadmaps for the development and validation of these technologies are discussed, including options for subscale technology demonstrations of future human exploration technologies on robotic missions.

Complexity Thinking and Methodology: The Potential of "Complex Case Study" for Educational Research

ERIC Educational Resources Information Center

Hetherington, Lindsay

2013-01-01

Complexity theories have in common perspectives that challenge linear methodologies and views of causality. In educational research, relatively little has been written explicitly exploring their implications for educational research methodology in general and case study in particular. In this paper, I offer a rationale for case study as a research…

Secondary School Teachers' Perceptions of Interactive Whiteboard Training Workshops: A Case Study from Taiwan

ERIC Educational Resources Information Center

Lai, Horng-Ji

2010-01-01

The purpose of this study was to explore secondary school teachers' perceptions of interactive whiteboard (IWB) training workshops in Taiwan. This study also sought to identify potential problems associated with the design of IWB training workshops in order to improve their effectiveness. This research employed observations and interviews to…

Toward a Mediation Model of Employability Enhancement: A Study of Employee-Supervisor Pairs in the Building Sector

ERIC Educational Resources Information Center

van der Heijden, Beatrice I. J. M.; Bakker, Arnold B.

2011-01-01

This study examines whether jobs that enable competence development and a constructive leadership style enhance workers' employability or career potential through their assumed positive relationship with work-related flow (absorption, work enjoyment, and intrinsic work motivation). The authors conducted an explorative study with 303 pairs of…

Simulation Software's Effect on College Students Spreadsheet Project Scores

ERIC Educational Resources Information Center

Atkinson, J. Kirk; Thrasher, Evelyn H.; Coleman, Phillip D.

2011-01-01

The purpose of this study is to explore the potential impact of support materials on student spreadsheet skill acquisition. Specifically, this study examines the use of an online spreadsheet simulation tool versus a printed book across two independent student groups. This study hypothesizes that the online spreadsheet simulation tool will have a…

Intravenous Solutions for Exploration Missions

NASA Technical Reports Server (NTRS)

Miller, Fletcher J.; Niederhaus, Charles; Barlow, Karen; Griffin, DeVon

2007-01-01

This paper describes the intravenous (IV) fluids requirements being developed for medical care during NASA s future exploration class missions. Previous research on IV solution generation and mixing in space is summarized. The current exploration baseline mission profiles are introduced, potential medical conditions described and evaluated for fluidic needs, and operational issues assessed. We briefly introduce potential methods for generating IV fluids in microgravity. Conclusions on the recommended fluid volume requirements are presented.

In vitro α -amylase and α-glucosidase inhibitory potential of Trigonella foenum-graecum leaves extract

PubMed Central

Ganeshpurkar, Aditya; Diwedi, Varsha; Bhardwaj, Yash

2013-01-01

Trigonella foenum-graecum is one of the widely used herbs in food and medicine. The seeds of the plants are investigated for antidiabetic potential; however, no efforts have been done to explore the potential of leaves to modify carbohydrate metabolizing enzymes viz. α-amylase and α-glucosidase. The present work was designed to investigate the inhibitory potential of ethyl acetate and water extract of T. foenum-graecum on enzymes α-amylase and α-glucosidase. Different concentrations of extracts were used to study inhibition of enzymatic activity of α-amylase and α-glucosidase. A dose dependent inhibitory effect on enzymes was observed. The current study, for the first time, revealed α-amylase and α-glucosidase inhibitory potential of T. foenum-graecum and the study could be helpful to isolate and characterize compounds responsible for it. PMID:24049415

Analysis of petroleum potential of Philippine sedimentary basins

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

Saldivar-Sali, A.; Harrison, J.; Flower, L.

1986-07-01

An extensive reevaluation of the petroleum potential of all sedimentary basins in the Philippine Archipelago was recently completed using World Bank funds. The study was conducted jointly by the technical staff of the Bureau of Energy Development (BED)/Philippine National Oil Company (PNOC) and senior consultants from Robertson Research, and Flower, Doery, Buchan Pty. Ltd., from 1983 to 1986. The joint team spent 2 1/2 years on the study and produced detailed reports and atlases, which constitute the most comprehensive basin analysis and petroleum potential assessment of the 13 major basins in the Philippines. Voluminous data available at the start ofmore » the project were supplemented by a countrywide aeromagnetic survey (216,000 km) and 9200 km of new marine seismic in 15 different areas. These surveys were also funded by the World Bank. The integration of all relevant geoscientific disciplines resulted in a better understanding of the geologic evolution of each basin and its bearing on the generation, migration, and entrapment of hydrocarbons. Many similarities and common characteristics were noted in the evolution and sedimentation of some basins. Play concepts have been developed and proposed for each basin, many of which are new plays that were not the objectives of previous exploration. The degree of exploration in these basins varies, and clearly, exploration activity has not reached a mature stage in any basin. Even where wells are numerous, many of them are old and shallow and of limited geologic value. Elsewhere, particularly offshore, there are large areas where no wells have been drilled. In conclusion, the bilateral cooperation between the Philippine government and the World Bank, particularly when exploration activity in the private sector was at a low level, proved most timely and beneficial.« less

Identifying Oil Exploration Leads using Intergrated Remote Sensing and Seismic Data Analysis, Lake Sakakawea, Fort Berthold Indian Reservation, Willistion Basin

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

Scott R. Reeves; Randal L. Billingsley

2004-02-26

The Fort Berthold Indian Reservation, inhabited by the Arikara, Mandan and Hidatsa Tribes (now united to form the Three Affiliated Tribes) covers a total area of 1530 mi{sup 2} (980,000 acres). The Reservation is located approximately 15 miles east of the depocenter of the Williston basin, and to the southeast of a major structural feature and petroleum producing province, the Nesson anticline. Several published studies document the widespread existence of mature source rocks, favorable reservoir/caprock combinations, and production throughout the Reservation and surrounding areas indicating high potential for undiscovered oil and gas resources. This technical assessment was performed to bettermore » define the oil exploration opportunity, and stimulate exploration and development activities for the benefit of the Tribes. The need for this assessment is underscored by the fact that, despite its considerable potential, there is currently no meaningful production on the Reservation, and only 2% of it is currently leased. Of particular interest (and the focus of this study) is the area under the Lake Sakakawea (formed as result of the Garrison Dam). This 'reservoir taking' area, which has never been drilled, encompasses an area of 150,000 acres, and represents the largest contiguous acreage block under control of the Tribes. Furthermore, these lands are Tribal (non-allotted), hence leasing requirements are relatively simple. The opportunity for exploration success insofar as identifying potential leads under the lake is high. According to the Bureau of Land Management, there have been 591 tests for oil and gas on or immediately adjacent to the Reservation, resulting in a total of 392 producing wells and 179 plugged and abandoned wells, for a success ratio of 69%. Based on statistical probability alone, the opportunity for success is high.« less

Exploring Motivations, Awareness of Side Effects, and Attitudes among Potential Egg Donors

PubMed Central

Gezinski, Lindsay B.; Karandikar, Sharvari; Carter, James; White, Melinda

2016-01-01

This research study surveyed prospective egg donors at orientation to (a) understand women’s motivations to donate eggs, (b) assess awareness and knowledge of egg donation prior to entry into the egg donation program, and (c) explore attitudes toward egg donation. Ninety-two women completed the questionnaire at one fertility clinic located in the Midwest between August 2011 and August 2012. Descriptive and inferential statistics as well as textual analysis were used to analyze the data. Three themes emerged regarding participant motivations: (1) altruistic, (2) financial, and (3) desire to pass on genetic material. The majority of participants were unconcerned with potential physical and psychological side effects; however, differences emerged based on motherhood status and educational level. Although potential donors felt recipients should receive some information about the donor, they tended to value privacy regarding information giving to resultant offspring. This research study has implications for social work practice, policy, and future research. It is crucial that women receive adequate procedural and side effect information prior to engaging in egg donation. PMID:27263197

Face-Evoked Steady-State Visual Potentials: Effects of Presentation Rate and Face Inversion

PubMed Central

Gruss, L. Forest; Wieser, Matthias J.; Schweinberger, Stefan R.; Keil, Andreas

2012-01-01

Face processing can be explored using electrophysiological methods. Research with event-related potentials has demonstrated the so-called face inversion effect, in which the N170 component is enhanced in amplitude and latency to inverted, compared to upright, faces. The present study explored the extent to which repetitive lower-level visual cortical engagement, reflected in flicker steady-state visual evoked potentials (ssVEPs), shows similar amplitude enhancement to face inversion. We also asked if inversion-related ssVEP modulation would be dependent on the stimulation rate at which upright and inverted faces were flickered. To this end, multiple tagging frequencies were used (5, 10, 15, and 20 Hz) across two studies (n = 21, n = 18). Results showed that amplitude enhancement of the ssVEP for inverted faces was found solely at higher stimulation frequencies (15 and 20 Hz). By contrast, lower frequency ssVEPs did not show this inversion effect. These findings suggest that stimulation frequency affects the sensitivity of ssVEPs to face inversion. PMID:23205009

MOUNT SHASTA WILDERNESS STUDY AREA, CALIFORNIA.

USGS Publications Warehouse

Christiansen, Robert L.; Tuchek, Ernest T.

1984-01-01

The Mount Shasta Wilderness lies wholly on the slopes and summit area of Mount Shasta and consists almost entirely of the products of geologically young volcanism. Small deposits of volcanic cinders and pumice are present. The volcanic system of Mount Shasta is judged to have probable resource potential for geothermal energy but that potential is least within the wilderness study area boundaries. Because any geothermal energy resource beneath the volcano would lie at considerable depths, exploration or development would be most likely at lower altitudes on the gentler slopes outside the study area.

Inquiry into the Potential Effects of Establishing a Joint ROTC Program to Be Implemented during the Early Years of College

ERIC Educational Resources Information Center

Meyer, Herman Skeets

2012-01-01

This is the report of a policy research study that examined the potential outcomes of instituting a standardized "Joint Reserve Officer Training Corps" during the first two years of college. Focus groups at three ROTC universities and interviews with subject matter experts were conducted to explore the meaning and purpose of jointness…

How Can Children Tell Us about Their Wellbeing? Exploring the Potential of Participatory Research Approaches within "Young Lives"

ERIC Educational Resources Information Center

Crivello, Gina; Camfield, Laura; Woodhead, Martin

2009-01-01

"Wellbeing" is a key concept in the study of children's lives over time, given its potential to link the objective, subjective, and inter-subjective dimensions of their experiences in ways that are holistic, contextualized and longitudinal. For this reason wellbeing is one of the core concepts used by Young Lives, a 15-year project…

An Exploration into the Potential Career Effects from Middle and High School Mathematics Experiences: A Mixed Methods Investigation into STEM Career Choice

ERIC Educational Resources Information Center

DeThomas, Elizabeth M.

2017-01-01

This mixed methods research study examined the effects of middle and high school mathematics experiences on students' choice of college major, particularly whether students decided to major in a STEM field. Social cognitive career theory was used to examine potential influences of mathematics self-efficacy and how those influences and mathematics…

Facebook as a Facilitator of Organizational Identification in Colleges and Universities: Exploring Relationships among Educational Institutions, Student Tenure, and Interaction with Multiple Organizational Targets

ERIC Educational Resources Information Center

Lau, Aimee R.

2013-01-01

Potential uses for Facebook are frequently studied in scholarly literature. To date, much of this research focuses on varied social uses available to Facebook members. More recently, scholars have turned to potential academic uses of Facebook, and more generally, how Facebook might be used in educational institutions such as colleges and…

Further Exploring the Potential for Assimilation of Unmanned Aircraft Observations to Benefit Hurricane Analyses and Forecasts

NASA Technical Reports Server (NTRS)

Sippel, Jason A.; Zhang, Fuqing; Weng, Yonghui; Braun, Scott A.; Cecil, Daniel J.

2015-01-01

This study explores the potential of assimilating data from multiple instruments onboard high-altitude, long-endurance unmanned aircraft to improve hurricane analyses and forecasts. A recent study found a significant positive impact on analyses and forecasts of Hurricane Karl when an ensemble Kalman filter was used to assimilate data from the High-altitude Imaging Wind and Rain Airborne Profiler (HIWRAP), a new Doppler radar onboard the NASA Global Hawk (GH) unmanned airborne system. The GH can also carry other useful instruments, including dropsondes and the Hurricane Imaging Radiometer (HIRAD), which is a new radiometer that estimates large swaths of wind speeds and rainfall at the ocean surface. The primary finding is that simultaneously assimilating data from HIWRAP and the other GH-compatible instruments results in further analysis and forecast improvement for Karl. The greatest improvement comes when HIWRAP, HIRAD, and dropsonde data are simultaneously assimilated.

World class Devonian potential seen in eastern Madre de Dios basin

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

Peters, K.E.; Wagner, J.B.; Carpenter, D.G.

The Madre de Dios basin in northern Bolivia contains thick, laterally extensive, organic-rich Upper Devonian source rocks that reached the oil-generative stage of thermal maturity after trap and seal formation. Despite these facts, less than one dozen exploration wells have been drilled in the Madre de Dios basin, and no significant reserves have been discovered. Mobil geoscientists conducted a regional geological, geophysical, and geochemical study of the Madre de Dios basin. The work reported here was designed to assess the distribution, richness, depositional environment, and thermal maturity of Devonian source rocks. It is supported by data from over 3,000 mmore » of continuous slimhole core in two of the five Mobil wells in the basin. Source potential also exists in Cretaceous, Mississippian, and Permian intervals. The results of this study have important implications for future exploration in Bolivia and Peru.« less

Working memory involvement in stuttering: exploring the evidence and research implications.

PubMed

Bajaj, Amit

2007-01-01

Several studies of utterance planning and attention processes in stuttering have raised the prospect of working memory involvement in the disorder. In this paper, potential connections between stuttering and two elements of Baddeley's [Baddeley, A. D. (2003). Working memory: Looking back and looking forward. Neuroscience, 4, 829-839] working memory model, phonological memory and central executive, are posited. Empirical evidence is drawn from studies on phonological memory and dual-task performance among children and adults who stutter to examine support for the posited connections. Implications for research to examine working memory as one of the psycholinguistic bases of stuttering are presented. The reader will learn about and be able to: (1) appraise potential relationships between working memory and stuttering; (2) evaluate empirical evidence that suggests the possibility of working memory involvement in stuttering; and (3) identify research directions to explore the role of working memory in stuttering.

Comparing decision making between cancer patients and the general population: thoughts, emotions, or social influence?

PubMed

Yang, Z Janet; McComas, Katherine A; Gay, Geri K; Leonard, John P; Dannenberg, Andrew J; Dillon, Hildy

2012-01-01

This study extends a risk information seeking and processing model to explore the relative effect of cognitive processing strategies, positive and negative emotions, and normative beliefs on individuals' decision making about potential health risks. Most previous research based on this theoretical framework has examined environmental risks. Applying this risk communication model to study health decision making presents an opportunity to explore theoretical boundaries of the model, while also bringing this research to bear on a pressing medical issue: low enrollment in clinical trials. Comparative analysis of data gathered from 2 telephone surveys of a representative national sample (n = 500) and a random sample of cancer patients (n = 411) indicated that emotions played a more substantive role in cancer patients' decisions to enroll in a potential trial, whereas cognitive processing strategies and normative beliefs had greater influences on the decisions of respondents from the national sample.

Alternative Strategies for Exploring Mars and the Moons of Mars

NASA Technical Reports Server (NTRS)

Drake, Bret G.; Baker, John D.; Hoffman, Stephen J.; Landau, Damon; Voels, Stephen A.

2012-01-01

The possible human exploration of Mars represents one of civilization s next major challenges and is an enterprise that would confirm the potential of humans to leave our home planet system and make our way outward into the cosmos. As exploration endeavors begin to set sights beyond low Earth orbit, potential exploration of the surface of Mars continues to serve as the horizon destination to help focus technology development and research efforts. Recent thoughts on exploration follow a flexible path approach beginning with missions that do not extend down into planetary gravity wells including surface exploration. Consistent with that flexible path strategy is the notion of exploring the moons of Mars, namely Phobos and Deimos, prior to exploring the surface. The premise behind this thought is that exploring Mars moons would be less costly and risky since these missions would avoid the difficulties associated with landing on the surface and subsequent ascent back to orbit. A complete assessment of this strategy has not been performed in the context of the flexible path approach and is needed to clearly understand all of the advantages and disadvantages. This paper examines the strategic implications of possible human exploration of the moons of Mars as a potential prelude to surface exploration. Various operational concepts for Phobos and Deimos exploration that include the infusion of different propulsion technologies are assessed in terms of mission duration, technologies required, overall risk and difficulty, and operational construct. Finally, the strategic implications of each concept are assessed to determine the overall key challenges and strategic links to other key flexible path destinations.

Sound velocity and density of magnesiowüstites: Implications for ultralow-velocity zone topography: Sound velocities of Iron-rich Oxides

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

Wicks, June; Jackson, Jennifer M.; Sturhahn, Wolfgang

We explore the effect of Mg/Fe substitution on the sound velocities of iron-rich (Mg 1 - xFe x)O, where x = 0.84, 0.94, and 1.0. Sound velocities were determined using nuclear resonance inelastic X-ray scattering as a function of pressure, approaching those of the lowermost mantle. The systematics of cation substitution in the Fe-rich limit has the potential to play an important role in the interpretation of seismic observations of the core-mantle boundary. By determining a relationship between sound velocity, density, and composition of (Mg,Fe)O, this study explores the potential constraints on ultralow-velocity zones at the core-mantle boundary.

Measuring Stigma in Older and Younger Adults with HIV/AIDS: An Analysis of an HIV Stigma Scale and Initial Exploration of Subscales

ERIC Educational Resources Information Center

Emlet, Charles A.

2005-01-01

The purpose of this study is to explore the validity of a scale designed to measure HIV stigma and identify potential subscales. A nonrandom sample of 88 individuals, 44 between the ages of 20 and 39 and 44 ages 50 and older, living with HIV/AIDS were interviewed and completed a 13-item HIV Stigma Scale. An exploratory factor analysis (EFA) found…

Error monitoring and empathy: Explorations within a neurophysiological context.

PubMed

Amiruddin, Azhani; Fueggle, Simone N; Nguyen, An T; Gignac, Gilles E; Clunies-Ross, Karen L; Fox, Allison M

2017-06-01

Past literature has proposed that empathy consists of two components: cognitive and affective empathy. Error monitoring mechanisms indexed by the error-related negativity (ERN) have been associated with empathy. Studies have found that a larger ERN is associated with higher levels of empathy. We aimed to expand upon previous work by investigating how error monitoring relates to the independent theoretical domains of cognitive and affective empathy. Study 1 (N = 24) explored the relationship between error monitoring mechanisms and subcomponents of empathy using the Questionnaire of Cognitive and Affective Empathy and found no relationship. Study 2 (N = 38) explored the relationship between the error monitoring mechanisms and overall empathy. Contrary to past findings, there was no evidence to support a relationship between error monitoring mechanisms and scores on empathy measures. A subsequent meta-analysis (Study 3, N = 125) summarizing the relationship across previously published studies together with the two studies reported in the current paper indicated that overall there was no significant association between ERN and empathy and that there was significant heterogeneity across studies. Future investigations exploring the potential variables that may moderate these relationships are discussed. © 2017 Society for Psychophysiological Research.

Using drawings to explore patients’ perceptions of their illness: a scoping review

PubMed Central

Cheung, Melissa Mei Yin; Saini, Bandana; Smith, Lorraine

2016-01-01

Background An emerging approach for investigating patient perspectives of their illness is the use of drawings. Objective This scoping review consolidates findings from current literature regarding the use of drawings to explore patients’ perceptions and experiences of their illness and treatment. Methods Electronic databases (Medline, PubMed, Embase, PsychINFO, Cinahl, Art Index and Scopus) and reference lists were searched to identify published English language studies using participant-generated drawings to explore adults’ perceptions and experiences of their illness and treatment. Using the scoping methodological framework, data were analyzed with respect to each study’s design, key findings and implications. Results Thirty-two studies were identified and these reflected diversities in both health conditions and methods of data collection and analysis. Participants’ drawings revealed new, insightful knowledge about patients’ perceptions, beliefs and experiences of their condition and were associated with clinical and psychological markers of health. Drawing was a powerful adjunct to traditional data collection approaches, and demonstrated potential benefits for participants. This review provides detailed insights and guidance on the use of drawings in research and clinical practice. Conclusion Drawing is a novel and potentially valuable technique for exploring patients’ perceptions and experiences about their illness and treatment. Advancing the methodology and applicability of drawings in this area will assist in the future development of this technique, with benefits for the patient, researcher and health care professional alike. PMID:27920550

Melting in the Arctic: Preparing Now for Possibilities in the Future

DTIC Science & Technology

2016-04-04

shipping, exploration, research, tourism , military patrols, and unfortunately the potential for conflict. So far, climate change, diplomacy, and economic...presence such as shipping, exploration, research, tourism , military patrols, and unfortunately the potential for conflict. So far, climate change...3 Tourism

Which Preschool Children with Specific Language Impairment Receive Language Intervention?

ERIC Educational Resources Information Center

Wittke, Kacie; Spaulding, Tammie J.

2018-01-01

Purpose: Potential biases in service provision for preschool children with specific language impairment (SLI) were explored. Method: In Study 1, children with SLI receiving treatment (SLI-T) and those with SLI not receiving treatment (SLI-NT) were compared on demographic characteristics and developmental abilities. Study 2 recruited children with…

Does Professional Development School Preparation Make a Difference? A Comparison of Three Teacher Candidate Studies

ERIC Educational Resources Information Center

Castle, Sharon; Fox, Rebecca K.; Fuhrman, Caroline

2009-01-01

The article compares three replication studies that explore potential differences between teacher candidates trained in professional development schools and those trained in a traditional program. Data sources included student teaching evaluations (analyzed quantitatively) and portfolio reflections, oral and written (analyzed qualitatively). The…

Early Language Learning: Complexity and Mixed Methods

ERIC Educational Resources Information Center

Enever, Janet, Ed.; Lindgren, Eva, Ed.

2017-01-01

This is the first collection of research studies to explore the potential for mixed methods to shed light on foreign or second language learning by young learners in instructed contexts. It brings together recent studies undertaken in Cameroon, China, Croatia, Ethiopia, France, Germany, Italy, Kenya, Mexico, Slovenia, Spain, Sweden, Tanzania and…

Honors Dissertation Abstracts: A Bounded Qualitative Meta-Study

ERIC Educational Resources Information Center

Holman, Debra K.; Banning, James H.

2012-01-01

A potential source of useful information about undergraduate honors education can be found in doctoral dissertation abstracts that focus on honors. Debra Holman and James Banning of Colorado State University sought to explore this resource by undertaking a bounded qualitative meta-study of such abstracts using document analysis. Three…

Is Tutoring Teaching? Exploring Tutoring's Potential to Improve Mathematics Teacher Education

ERIC Educational Resources Information Center

Rasche, Alexander N.

2017-01-01

This study investigated the tutoring practices of mathematics tutors working in one university tutoring center and the corresponding rationale exhibited by the mathematics tutors. This study illustrates how the tutoring practices of mathematics tutors align with the Eight Mathematics Teaching Practices outlined in NCTM's recent publication…

Drawing on Student Knowledge of Neuroanatomy and Neurophysiology

ERIC Educational Resources Information Center

Slominski, Tara N.; Momsen, Jennifer L.; Montplaisir, Lisa M.

2017-01-01

Drawings are an underutilized assessment format in Human Anatomy and Physiology (HA&P), despite their potential to reveal student content understanding and alternative conceptions. This study used student-generated drawings to explore student knowledge in a HA&P course. The drawing tasks in this study focused on chemical synapses between…

Theorizing the Use of Aesthetic Texts in Social Studies Education

ERIC Educational Resources Information Center

Garrett, H. James; Kerr, Stacey L.

2016-01-01

The researching and practicing of social studies education is often infused with poetry, art, literature, film, photography, and music. Engagements with and production of these aesthetic texts can promote critical thinking, foster empathetic thinking, and aid historical analysis. This article provides 3 potential theoretical explorations for why…

Childhood Asthma and Environmental Exposures at Swimming Pools: State of the Science and Research Recommendations

EPA Science Inventory

Recent studies have explored the potential for swimming pool disinfection byproducts (DBPs) which are respiratory irritants to cause asthma in young children. While these studies raise concerns, gaps still exist in our knowledge regarding the exact causal agents and mechanisms f...

Religiousness and Alcohol Use in College Students: Examining Descriptive Drinking Norms as Mediators

ERIC Educational Resources Information Center

Brechting, Emily H.; Carlson, Charles R.

2015-01-01

Religiousness has consistently emerged in the literature as a protective factor for alcohol use. Relatively few studies have empirically explored possible mechanisms for this robust effect. The present study examines descriptive drinking norms as a potential mediator of the religiousness--alcohol consumption association. Consistent with the…

Farm-to-School Programs: Perspectives of School Food Service Professionals

ERIC Educational Resources Information Center

Izumi, Betty T.; Alaimo, Katherine; Hamm, Michael W.

2010-01-01

Objective: This qualitative study used a case study approach to explore the potential of farm-to-school programs to simultaneously improve children's diets and provide farmers with viable market opportunities. Design: Semistructured interviews were the primary data collection strategy. Setting: Seven farm-to-school programs in the Upper Midwest…

Teacher-Child Relationships: Contribution of Teacher and Child Characteristics

ERIC Educational Resources Information Center

Choi, Ji Young; Dobbs-Oates, Jennifer

2016-01-01

This study investigates potential predictors of teacher-child relationships (i.e., closeness and conflict) focusing on child gender, teacher-child ethnicity match, and teacher education. Additionally, the study explores the possible moderation effect of teacher education on the associations between teacher-child relationships and child gender or…

International Schools as Sites of Social Change

ERIC Educational Resources Information Center

Dunne, Sandra; Edwards, Julie

2010-01-01

This article examines the potential of international schools to act as agents of social transformation in developing countries. The method comprises a case study at two international schools in the Philippines. The case study explored ways in which schools foster host-national students' sense of social responsibility, particularly through…

Researching Learner Self-Efficacy and Online Participation through Speech Functions: An Exploratory Study

ERIC Educational Resources Information Center

Sánchez-Castro, Olga; Strambi, Antonella

2017-01-01

This study explores the potential contribution of Eggins and Slade's (2004) Speech Functions as tools for describing learners' participation patterns in Synchronous Computer-Mediated Communication (SCMC). Our analysis focuses on the relationship between learners' self-efficacy (i.e. personal judgments of second language performance capabilities)…

Student Affairs Capitalism and Early-Career Student Affairs Professionals

ERIC Educational Resources Information Center

Lee, Jenny J.; Helm, Matthew

2013-01-01

This study explores student affairs capitalism as the alteration of professional practice towards the financial interests of institutions. Student affairs capitalism has the potential to create dynamics in which the interests of students become secondary to the institution's economic needs. This study examined this phenomenon from the perspectives…

Acknowledging Educational Perspectives on Health Promoting Schools

ERIC Educational Resources Information Center

Mohammadi, Nastaran Keshavarz; Rowling, Louise; Nutbeam, Don

2010-01-01

Purpose: The purpose of this study is to explore educational perspectives towards the concept of health promoting schools and its potential benefits for schools in more depth. Design/methodology/approach: This paper presents the results of a qualitative study based on interviews with school staff including principals, and teachers with…

Undergraduate Student Self-Efficacy and Perceptions of Virtual World Learning Experience

ERIC Educational Resources Information Center

Stanton, Lorraine May

2017-01-01

Virtual worlds are innovative teaching and learning methods that can provide immersive and engaging learning experiences (Lu, 2010). Though they have potential benefits, students sometimes experience a steep learning curve and discomfort with the technology (Warburton, 2009). This study explored how students in two American Studies classes using…

The Exploration of Indicators of Imagination

ERIC Educational Resources Information Center

Liang, Chaoyun; Chang, Chi-Cheng; Chang, Yuhsuan; Lin, Li-Jhong

2012-01-01

Although early studies in the fields of education and psychology appreciated the value of imagination, little work has been done pertaining to indicators of imagination. This study synthesized early works on imagination done between 1900 and 2011 to clarify its meaning and identify potential indicators. Then, two groups of samples were collected…

The Effects of Personality on Perceptions of Serendipity in College Students

ERIC Educational Resources Information Center

Kahn, Lance W.

2012-01-01

The study explores the potential relationship between personality and perceptions of serendipitous influence on academic and career decision-making. The study was conducted with 107 participants who were enrolled full-time at a rural, church affiliated private college in eastern North Carolina. The participants represented an accurate…

Why Adolescent Problem Gamblers Do Not Seek Treatment

ERIC Educational Resources Information Center

Ladouceur, Robert; Blaszczynski, Alexander; Pelletier, Amelie

2004-01-01

Prevalence studies indicate that approximately 40% of adolescents participate in regular gambling with rates of problem gambling up to four times greater than that found in adult populations. However, it appears that few adolescents actually seek treatment for such problems. The purpose of this study was to explore potential reasons why…

Yoik experiences and possible positive health outcomes: an explorative pilot study

PubMed Central

Hämäläinen, Soile; Musial, Frauke; Graff, Ola; Olsen, Torjer A.; Salamonsen, Anita

2017-01-01

ABSTRACT Background: Yoik is an old vocal music tradition of Sami, the indigenous people inhabiting Northern Fennoscandia and Kola peninsula in Russia. Studies of music therapy (MT) and especially singing have documented improvements in social and overall functioning in people with severe mental disorders and positive effect on depressive symptoms and sleep quality. Possible connections between yoik and health are so far underexplored. Objectives: The overall aim of this study was to explore whether yoik may have the potential to positively influence people’s health and well-being. The research questions were: 1. What are different persons’ experiences with yoik? 2. Can yoik experiences be related to health outcomes? Methods: Explorative, qualitative interviews with 13 participants were conducted in the Norwegian counties Finnmark, Troms, Nordland, and Trøndelag. Findings: The findings suggest qualities in yoik that are comparable to positive effects of Music Therapy (MT) in general. Yoik may contribute to emotion management, i.e. processing negative emotions and inducing positive ones in people acknowledging yoik as something positive. Conclusion: Yoik may be considered an important marker of social and cultural belonging for many Sami people. Yoik seems to have an underresearched potential as an intervention in culture sensitive healthcare and health promotion work that deserves to be further investigated. PMID:28452679

The Western Noachis Terra Chloride Deposits: An Improved Characterization of the Proposed Human Exploration Zone

NASA Astrophysics Data System (ADS)

Hill, J. R.; Plaut, J. J.; Christensen, P. R.

2016-12-01

At the First Landing Site and Exploration Zone Workshop for Human Missions to the Surface of Mars (Oct 27-30, 2015, Houston, TX), planetary scientists, students and members of the public proposed forty-seven sites that meet the engineering requirements for a human mission and would also allow astronauts to investigate important scientific questions while on the surface. The chloride deposits in western Noachis Terra at -37.2°N, 350.5°E were proposed as a potential exploration zone due to their proximity to craters containing glacier-like forms and imperfectly-formed concentric crater fill. The high astrobiological preservation potential of the chloride deposits exposed on the surface would allow astronauts to investigate the past habitability of a well-preserved Noachian fluvial system, while the subsurface ice features suggest astronauts would have relatively easy access to enough water to meet the requirements of NASA's current baseline mission architecture. Since the workshop, the proposed exploration zone has been further characterized using additional datasets, as well as new data collected by the Mars Reconnaissance Orbiter as part of the exploration zone data acquisition effort organized by NASA's Human Landing Sites Study (HLS2) team. First, SHARAD radar data were used to constrain the subsurface structure of the imperfectly-formed concentric crater fill within the two large craters, which makes a more accurate assessment of the potential subsurface water ice resources possible. Second, newly acquired HiRISE images were used to better assess the traversability of the terrain between the habitation zone and the primary resource and science regions-of-interest (ROIs). And third, the exploration zone was shifted in order to place the central landing site closer to potential subsurface water ice resources. Although this would require crews to travel further to investigate the chloride deposits, it reduces the distance between the subsurface water ice locations and the central habitation zone, where the excavated water would be processed and utilized. The analysis of this additional data has further demonstrated that the western Noachis Terra chloride deposits are an ideal location for astronauts to safely and effectively conduct astrobiological investigations on the Martian surface.

Mars Soil-Based Resource Processing and Planetary Protection

NASA Technical Reports Server (NTRS)

Sanders, G. B.; Mueller, R. P.

2015-01-01

The ability to extract and process resources at the site of exploration into products and services, commonly referred to as In Situ Resource Utilization (ISRU), can have significant benefits for robotic and human exploration missions. In particular, the ability to use in situ resources to make propellants, fuel cell reactants, and life support consumables has been shown in studies to significantly reduce mission mass, cost, and risk, while enhancing or enabling missions not possible without the incorporation of ISRU. In December 2007, NASA completed the Mars Human Design Reference Architecture (DRA) 5.0 study. For the first time in a large scale Mars architecture study, water from Mars soil was considered as a potential resource. At the time of the study, knowledge of water resources (their form, concentration, and distribution) was extremely limited. Also, due to lack of understanding of how to apply planetary protection rules and requirements to ISRU soil-based excavation and processing, an extremely conservative approach was incorporated where only the top several centimeters of ultraviolet (UV) radiated soil could be processed (assumed to be 3% water by mass). While results of the Mars DRA 5.0 study showed that combining atmosphere processing to make oxygen and methane with soil processing to extract water provided the lowest mission mass, atmosphere processing to convert carbon dioxide (CO2) into oxygen was baselined for the mission since it was the lowest power and risk option. With increased knowledge and further clarification of Mars planetary protection rules, and the recent release of the Mars Exploration Program Analysis Group (MEPAG) report on "Special Regions and the Human Exploration of Mars", it is time to reexamine potential water resources on Mars, options for soil processing to extract water, and the implications with respect to planetary protection and Special Regions on Mars.

Exploring the Potential Emotional and Behavioural Impact of Providing Personalised Genomic Risk Information to the Public: A Focus Group Study.

PubMed

Smit, Amelia K; Keogh, Louise A; Newson, Ainsley J; Hersch, Jolyn; Butow, Phyllis; Cust, Anne E

2015-01-01

To explore the potential emotional and behavioural impact of providing information on personalised genomic risk to the public, using melanoma as an example, to aid research translation. We conducted four focus groups in which 34 participants were presented with a hypothetical scenario of an individual's lifetime genomic risk of melanoma (using the term 'genetic risk'). We asked about understanding of genetic risk, who would choose to receive this risk information, potential emotional and behavioural impacts, and other concerns or potential benefits. Data were analysed thematically. Participants thought this risk information could potentially motivate preventive behaviours such as sun protection and related it to screening for other diseases including breast cancer. Factors identified as influencing the decision to receive genetic risk information included education level, children, age and gender. Participants identified potential negative impacts on the recipient such as anxiety and worry, and proposed that this could be mitigated by providing additional explanatory and prevention information, and contact details of a health professional for further discussion. Participants' concerns included workplace and insurance discrimination. Participants recognised the potential for both positive and negative emotional and behavioural impacts related to receiving information on the personalised genomic risk of melanoma. © 2015 S. Karger AG, Basel.

Potential Mission Scenarios Post Asteroid Crewed Mission

NASA Technical Reports Server (NTRS)

Lopez, Pedro, Jr.; McDonald, Mark A.

2015-01-01

A deep-space mission has been proposed to identify and redirect an asteroid to a distant retrograde orbit around the moon, and explore it by sending a crew using the Space Launch System and the Orion spacecraft. The Asteroid Redirect Crewed Mission (ARCM), which represents the third segment of the Asteroid Redirect Mission (ARM), could be performed on EM-3 or EM-4 depending on asteroid return date. Recent NASA studies have raised questions on how we could progress from current Human Space Flight (HSF) efforts to longer term human exploration of Mars. This paper will describe the benefits of execution of the ARM as the initial stepping stone towards Mars exploration, and how the capabilities required to send humans to Mars could be built upon those developed for the asteroid mission. A series of potential interim missions aimed at developing such capabilities will be described, and the feasibility of such mission manifest will be discussed. Options for the asteroid crewed mission will also be addressed, including crew size and mission duration.

Technical prospects for utilizing extraterrestrial propellants for space exploration

NASA Technical Reports Server (NTRS)

Linne, Diane L.; Meyer, Michael L.

1991-01-01

NASA's LeRC has supported several efforts to understand how lunar and Martian produced propellants can be used to their best advantage for space exploration propulsion. A discussion of these efforts and their results is presented. A Manned Mars Mission Analysis Study identified that a more thorough technology base for propellant production is required before the the net economic benefits of in situ propellants can be determined. Evaluation of the materials available on the moon indicated metal/oxygen combinations are the most promising lunar propellants. A hazard analysis determined that several lunar metal/LOX monopropellants could be safely worked with in small quantities, and a characterization study was initiated to determine the physical and chemical properties of potential lunar monopropellant formulations. A bipropellant metal/oxygen subscale test engine which utilizes pneumatic injection of powdered metal is being pursued as an alternative to the monopropellant systems. The technology for utilizing carbon monoxide/oxygen, a potential Martian propellant, was studied in subscale ignition and rocket performance experiments.

Hospital CEOs Need Health IT Knowledge and Trust in CIOs: Insights from a Qualitative Study.

PubMed

Thye, Johannes; Hübner, Ursula; Weiß, Jan-Patrick; Teuteberg, Frank; Hüsers, Jens; Liebe, Jan-David; Babitsch, Birgit

2018-01-01

IT is getting an increasing importance in hospitals. In this context, major IT decisions are often made by CEOs who are not necessarily IT experts. Therefore, this study aimed at a) exploring different types of IT decision makers at CEO level, b) identifying hypotheses if trust exists between these different types of CEOs and their CIOs and c) building hypotheses on potential consequences regarding risk taking and innovation. To this end, 14 qualitative interviews with German hospital CEOs were conducted to explore the research questions. The study revealed three major types: IT savvy CEOs, IT enthusiastic CEOs and IT indifferent CEOs. Depending on these types, their relationship with the CIO varied in terms of trust and common language. In case of IT indifferent CEOs, a potential vicious circle of lack of IT knowledge, missing trust, low willingness to take risks and low innovation power could be identified. In order to break of this circle, CEOs seem to need more IT knowledge and/or greater trust in their CIO.

Relationship Between Increased Personal Well-Being and Enhanced Empathy Among Internal Medicine Residents

PubMed Central

Shanafelt, Tait D; West, Colin; Zhao, Xinghua; Novotny, Paul; Kolars, Joseph; Habermann, Thomas; Sloan, Jeff

2005-01-01

BACKGROUND While resident distress and its potential to negatively effect patient care have been well documented, little is known bout resident well-being or its potential to enhance care. OBJECTIVE We measured resident well-being and explored its relationship with empathy. DESIGN Anonymous, cross-sectional survey. PARTICIPANTS Internal medicine residents at Mayo Clinic Rochester (n=165, summer 2003). MEASUREMENTS Well-being was measured using the previously validated Medical Outcomes Study 8-item Short Form (SF-8). Empathy was measured using the previously validated Perspective Taking (PT) and Empathetic Concerns (EC) Sub-scales of the Interpersonal Reactivity Index (IRI). RESULTS Eighty-three (50%) residents responded to the survey. Mean scores for well-being as measured by the SF-8 were comparable to the general population, and empathy scores on the IRI were similar to other resident samples. Resident empathy on both the cognitive (PT) and emotive (EC) sub-scales of the IRI was higher for residents with higher mental well-being on the SF-8; however, this difference was statistically significant only for the cognitive sub-scale. The importance of a number of personal wellness promotion strategies differed for residents with higher mental well-being on the SF-8. CONCLUSIONS High mental well-being was associated with enhanced resident empathy in this cross-sectional survey. Future studies need to explore the potential for high resident well-being to enhance medical care and competency in addition to exploring the negative consequences of resident distress. Studies investigating how to promote resident well-being are needed. PMID:16050855

Exploration of the Esophageal Mucosal Barrier in Non-Erosive Reflux Disease

PubMed Central

Rinsma, Nicolaas F.; Farré, Ricard; Troost, Fred J.; Elizalde, Montserrat; Keszthelyi, Daniel; Helyes, Zsuzsanna; Masclee, Ad A.; Conchillo, José M.

2017-01-01

In the absence of visible mucosal damage, it is hypothesized that the esophageal mucosal barrier is functionally impaired in patients with non-erosive reflux disease (NERD). The aim of the present study was to perform an exploratory analysis of the mucosal barrier in NERD compared to erosive esophagitis (EE) and controls. A second aim was to explore TRPV1 gene transcription in relation to the mucosal barrier function and heartburn symptoms. In this prospective study, 10 NERD patients, 11 patients with active erosive esophagitis and 10 healthy volunteers were included. Biopsies from non-eroded mucosa were obtained for (1) ex vivo analyses (Ussing chamber) of transepithelial electrical resistance (TEER) and permeability (2) gene transcription of tight-junction proteins and transient receptor potential vanilloid subfamily member 1 (TRPV1). No differences in TEER or permeability were found between NERD and healthy volunteers, whereas TEER was lower in patients with erosive esophagitis. TRPV1 gene transcription was not significantly different between EE, NERD and controls. Conclusions: esophageal mucosal barrier function and TRPV1 transcription is not significantly altered in NERD patients. Future research is needed to explore other potential mechanisms that may account for the high symptom burden in these patients. PMID:28534850

Global Health, Geographical Contingency, and Contingent Geographies

PubMed Central

Herrick, Clare

2016-01-01

Health geography has emerged from under the “shadow of the medical” to become one of the most vibrant of all the subdisciplines. Yet, this success has also meant that health research has become increasingly siloed within this subdisciplinary domain. As this article explores, this represents a potential lost opportunity with regard to the study of global health, which has instead come to be dominated by anthropology and political science. Chief among the former's concerns are exploring the gap between the programmatic intentions of global health and the unintended or unanticipated consequences of their deployment. This article asserts that recent work on contingency within geography offers significant conceptual potential for examining this gap. It therefore uses the example of alcohol taxation in Botswana, an emergent global health target and tool, to explore how geographical contingency and the emergent, contingent geographies that result might help counter the prevailing tendency for geography to be side-stepped within critical studies of global health. At the very least, then, this intervention aims to encourage reflection by geographers on how to make explicit the all-too-often implicit links between their research and global health debates located outside the discipline. PMID:27611662

Spacecraft surface charging within geosynchronous orbit observed by the Van Allen Probes

DOE PAGES

Sarno-Smith, Lois K.; Larsen, Brian A.; Skoug, Ruth M.; ...

2016-02-27

Using the Helium Oxygen Proton Electron (HOPE) and Electric Field and Waves (EFW) instruments from the Van Allen Probes, we explored the relationship between electron energy fluxes in the eV and keV ranges and spacecraft surface charging. We present statistical results on spacecraft charging within geosynchronous orbit by L and MLT. An algorithm to extract the H+ charging line in the HOPE instrument data was developed to better explore intense charging events. Also, this study explored how spacecraft potential relates to electron number density, electron pressure, electron temperature, thermal electron current, and low-energy ion density between 1 and 210 eV.more » It is demonstrated that it is imperative to use both EFW potential measurements and the HOPE instrument ion charging line for examining times of extreme spacecraft charging of the Van Allen Probes. The results of this study show that elevated electron energy fluxes and high-electron pressures are present during times of spacecraft charging but these same conditions may also occur during noncharging times. Furthermore, we also show noneclipse significant negative charging events on the Van Allen Probes.« less

Exploring Therapeutic Potential Of Nanocarrier Systems Against Breast Cancer.

PubMed

Kumar, Lalit; Baldi, Ashish; Verma, Shivani; Utreja, Puneet

2018-06-03

Breast cancer is most widely occurring non-cutaneous cancer in women. Treatment options available for breast cancer are limited and there are a number of toxicity concerns associated with them. Therefore, nanocarrier based approaches have been explored for breast cancer treatment. Nanocarriers implemented for breast cancer treatment are nanoliposomes, polymeric nanoparticles, solid lipid nanoparticles, nanostructured lipid carriers, gold nanoparticles, dendrimers, and protein nanocages. Objective of this review was to explore the therapeutic efficacy of various nanocarrier systems against breast cancer. Existing literature regarding nanocarrier systems for breast cancer therapy was reviewed using Pubmed and Google Scholar. Nanocarriers may show prolonged circulation time of chemotherapeutic agent with efficient breast tumor targeting. Both active and passive targeting methodologies can be explored to target breast cancer cells using different nanocarriers. Targeted nanocarriers have the capability to reduce side effects caused by various conventional formulations used to treat breast cancer. Various nanocarriers listed above have shown their therapeutic potential in preclinical studies to treat breast cancer. Satisfactory clinical evaluation and scale up techniques can promote their entry into the pharmaceutical market in greater extent. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Using Landsat ETM+ and ASTER Sensors to Aid the Mineral Assessment of the Desert National Wildlife Refuge, Clark and Lincoln Counties, Nevada

NASA Astrophysics Data System (ADS)

Cramer, Timothy F.

The Desert National Wildlife Refuge in southern Nevada has been selected for remote sensing analysis as part of a mineral assessment required for renewal of mineral withdrawal. The area of interest is nearly 3,000 km2 and covers portions of 5 different ranges with little to no infrastructure. Assessing such a large area using traditional field methods is very time intensive and expensive. The study described here serves as a pilot study, testing the capability of Landsat ETM+ and ASTER satellite imagery to remotely identify areas of potentially mineralized lithologies. This is done by generating a number of band ratio, band index, and mineral likelihood maps identifying 5 key mineral classes (silica, clay, iron oxide, dolomite and calcite), which commonly have patterned zonation around ore deposits. When compiled with available geologic and geochemical data sets, these intermediate products can provide guidance for targeted field evaluation and exploration. Field observations and spectral data collected in the laboratory can then be integrated with ASTER imagery to guide a Spectral Angle Mapper algorithm to generate a distribution map of the five mineral classes. The methods presented found the ASTER platform to be capable of remotely assessing the distribution of various lithologies and the mineral potential of large, remote areas. Furthermore areas of both high and low potential for ore deposits can be identified and used to guide field evaluation and exploration. Remote sensing studies of this caliber can be performed relatively quickly and inexpensively resulting in datasets, which can result in more accurate mapping and the identification of both lithologic boundaries and previously unidentified alteration associated with mineralization. Future mineral assessments and exploration activity should consider similar studies prior to field work.

[Myths about organ donation on health personnel, potential recipients and relatives of potential donors in a peruvian hospital: a qualitative study].

PubMed

Gómez-Rázuri, Katherine; Ballena-López, José; León-Jiménez, Franco

2016-03-01

To explore the myths regarding organ donation at a national hospital in Lambayeque, Peru during 2014. A qualitative-phenomenological study was performed using 24 unstructured in-depht interview of health personnel, potential recipients and relatives of potential donors. Sampling was intentional opinion-based, completed by theoretical saturation in each group. An interview guide was used, which was assessed by five experts, and data triangulation was performed. Twenty-three interviewees (95,8%) reported a favorable attitude towards organ donation. On their National Identification Document, thirteen (54,2%) had marked "no" for donation. The myths were: age or illness can preclude donation; that the recipient may experience the donor's behaviours and lives in it; brain death is undestood as the immobility of the body and a reversible state; religions do not accept organ donation because it affects physical integrity and resurrection; and that there are preferences on the organ donor waiting list and that organ trafficking taxes place. Myths explored in this study involved religious, socio-cultural, psychological and ethical misperceptions. The apparent lack of knowledge of the brain death diagnosis is the starting point of the donation process. Therefore, the presence of a hospital coordinator, the role of spiritual leaders and the correct information provided by media would be key parts to dispell these myths.

Measures of Potential Flexibility and Practical Flexibility in Equation Solving.

PubMed

Xu, Le; Liu, Ru-De; Star, Jon R; Wang, Jia; Liu, Ying; Zhen, Rui

2017-01-01

Researchers interested in mathematical proficiency have recently begun to explore the development of strategic flexibility, where flexibility is defined as knowledge of multiple strategies for solving a problem and the ability to implement an innovative strategy for a given problem solving circumstance. However, anecdotal findings from this literature indicate that students do not consistently use an innovative strategy for solving a given problem, even when these same students demonstrate knowledge of innovative strategies. This distinction, sometimes framed in the psychological literature as competence vs. performance-has not been previously studied for flexibility. In order to explore the competence/performance distinction in flexibility, this study developed and validated measures for potential flexibility (e.g., competence, or knowledge of multiple strategies) and practical flexibility (e.g., performance, use of innovative strategies) for solving equations. The measures were administrated to a sample of 158 Chinese middle school students through a Tri-Phase Flexibility Assessment, in which the students were asked to solve each equation, generate additional strategies, and evaluate own multiple strategies. Confirmatory factor analysis supported a two-factor model of potential and practical flexibility. Satisfactory internal consistency was found for the measures. Additional validity evidence included the significant association with flexibility measured with the previous method. Potential flexibility and practical flexibility were found to be distinct but related. The theoretical and practical implications of the concepts and their measures of potential flexibility and practical flexibility are discussed.

Combination of cheminformatics and bioinformatics to explore the chemical basis of the rhizomes and aerial parts of Dioscorea nipponica Makino.

PubMed

Li, Xu-Zhao; Zhang, Shuai-Nan; Yang, Xu-Yan

2017-12-01

This study was aimed to explore the chemical basis of the rhizomes and aerial parts of Dioscorea nipponica Makino (DN). The pharmacokinetic profiles of the compounds from DN were calculated via ACD/I-Lab and PreADMET program. Their potential therapeutic and toxicity targets were screened through the DrugBank's or T3DB's ChemQuery structure search. Eleven of 48 compounds in the rhizomes and over half of the compounds in the aerial parts had moderate or good human oral bioavailability. Twenty-three of 48 compounds in the rhizomes and 40/43 compounds from the aerial parts had moderate or good permeability to intestinal cells. Forty-three of 48 compounds from the rhizomes and 18/43 compounds in the aerial parts bound weakly to the plasma proteins. Eleven of 48 compounds in the rhizomes and 36/43 compounds of the aerial parts might pass across the blood-brain barrier. Forty-three 48 compounds in the rhizomes and 18/43 compounds from the aerial parts showed low renal excretion ability. The compounds in the rhizomes possessed 391 potential therapeutic targets and 216 potential toxicity targets. Additionally, the compounds from the aerial parts possessed 101 potential therapeutic targets and 183 potential toxicity targets. These findings indicated that combination of cheminformatics and bioinformatics may facilitate achieving the objectives of this study. © 2017 Royal Pharmaceutical Society.

Measures of Potential Flexibility and Practical Flexibility in Equation Solving

PubMed Central

Xu, Le; Liu, Ru-De; Star, Jon R.; Wang, Jia; Liu, Ying; Zhen, Rui

2017-01-01

Researchers interested in mathematical proficiency have recently begun to explore the development of strategic flexibility, where flexibility is defined as knowledge of multiple strategies for solving a problem and the ability to implement an innovative strategy for a given problem solving circumstance. However, anecdotal findings from this literature indicate that students do not consistently use an innovative strategy for solving a given problem, even when these same students demonstrate knowledge of innovative strategies. This distinction, sometimes framed in the psychological literature as competence vs. performance—has not been previously studied for flexibility. In order to explore the competence/performance distinction in flexibility, this study developed and validated measures for potential flexibility (e.g., competence, or knowledge of multiple strategies) and practical flexibility (e.g., performance, use of innovative strategies) for solving equations. The measures were administrated to a sample of 158 Chinese middle school students through a Tri-Phase Flexibility Assessment, in which the students were asked to solve each equation, generate additional strategies, and evaluate own multiple strategies. Confirmatory factor analysis supported a two-factor model of potential and practical flexibility. Satisfactory internal consistency was found for the measures. Additional validity evidence included the significant association with flexibility measured with the previous method. Potential flexibility and practical flexibility were found to be distinct but related. The theoretical and practical implications of the concepts and their measures of potential flexibility and practical flexibility are discussed. PMID:28848481

Long non-protein coding RNA DANCR functions as a competing endogenous RNA to regulate osteoarthritis progression via miR-577/SphK2 axis.

PubMed

Fan, Xiaochen; Yuan, Jishan; Xie, Jun; Pan, Zhanpeng; Yao, Xiang; Sun, Xiangyi; Zhang, Pin; Zhang, Lei

2018-06-07

Long noncoding RNAs (lncRNAs) have been known to be involved in multiple diverse diseases, including osteoarthritis (OA). This study aimed to explore the role of differentiation antagonizing non-protein coding RNA (DANCR) in OA and identify the potential molecular mechanisms. The expression of DANCR in cartilage samples from patients with OA was detected using quantitative reverse transcription-polymerase chain reaction. The effects of DANCR on the viability of OA chondrocytes and apoptosis were explored using cell counting kit 8 assay and flow cytometry assay, respectively. Additionally, the interaction among DANCR, miR-577, and SphK2 was explored using dual-luciferase reporter and RIP assays. The present study found that DANCR was significantly upregulated in patients with OA. Functional assays demonstrated that DANCR inhibition suppressed the proliferation of OA chondrocytes and induced cell apoptosis. The study also showed that DANCR acted as a competitive endogenous RNA to sponge miR-577, which targeted the mRNA of SphK2 to regulate the survival of OA chondrocytes. In conclusion, the study revealed that lncRNA DANCR might promote the proliferation of OA chondrocytes and reduce apoptosis through the miR-577/SphK2 axis. Thus, lncRNA DANCR might be considered as a potential therapeutic target for OA treatment. Copyright © 2018 Elsevier Inc. All rights reserved.

Behavioral and psychological subsyndromes in Alzheimer's disease using the Neuropsychiatric Inventory.

PubMed

Canevelli, Marco; Adali, Nawal; Voisin, Thierry; Soto, Maria Eugenia; Bruno, Giuseppe; Cesari, Matteo; Vellas, Bruno

2013-08-01

Behavioral and psychological symptoms of dementia represent common clinical features of dementias, contributing to the heterogeneous phenotypic expression of Alzheimer's disease (AD). During the last two decades, several studies explored the possible presence of neuropsychiatric subsyndromes in dementia by examining the internal structure of the Neuropsychiatric Inventory (NPI). The aim of the present review is to present available evidence coming from studies adopting factor analysis to explore the NPI and describe neuropsychiatric clusters of symptoms in AD. A systematic review of literature was performed concerning available studies describing neuropsychiatric subsyndromes in AD by adopting the NPI. Overall, our analysis showed a relatively low concordance among available evidence for what concerns the definition and composition of NPI clusters, possibly due (at least in part) to the heterogeneity of the sample populations recruited in the studies. However, we also observed some consistent associations of specific symptoms across studies, defining potential subsyndromes in AD. More consistent results were obtained by studies evaluating the 10-item version of the NPI rather than the more recent 12-item one. This review represents the first attempt to systematically evaluate evidence coming from factor analyses exploring the internal structure of the NPI in order to facilitate the identification of neuropsychiatric syndromes in AD patients. The NPI may support the definition of behavioral subsyndromes in AD. The evaluation of neuropsychiatric subsyndromes should always take into account the main potential confounders, such as age, severity of disease, and concomitant pharmacological treatment. Copyright © 2012 John Wiley & Sons, Ltd.

Working Group Reports and Presentations: Asteroids

NASA Technical Reports Server (NTRS)

Lewis, John

2006-01-01

The study and utilization of asteroids will be an economical way to enable exploration of the solar system and extend human presence in space. There are thousands of near-earth objects (NEOs) that we will be able to reach. They offer resources, transportation, and exploration platforms, but also present a potential threat to civilization. Asteroids play a catastrophic role in the history of the Earth. Geological records indicate a regular history of massive impacts, which astronomical observations confirm is likely to continue with potentially devastating consequences. However, study and exploration of near earth asteroids can significantly increase advanced warning of an Earth impact, and potentially lead to the technology necessary to avert such a collision. Efforts to detect and prevent cataclysmic events would tend to foster and likely require international cooperation toward a unified goal of self-preservation. Exploration of asteroids will help us to understand our history and perhaps save our future. Besides the obvious and compelling scientific and security drivers for asteroid research and exploration, there are numerous engineering and industrial applications for near-term asteroid exploration. We have strong evidence that some asteroids are metal rich. Some are water and organic rich. They can be reached with a very low fuel cost compared to other solar system destinations. Once we reach them, there are efficient, simple extraction technologies available that would facilitate utilization. In addition, the costs of returning extracted resources from asteroids will be a fraction of the cost to return similar resources from the moon to Low Earth Orbit (LEO). These raw materials, extracted and shipped at relatively low cost, can be used to manufacture structures, fuel, and products which could be used to foster mankind s further exploration of the solar system. Asteroids also have the potential to offer transport to several destinations in the solar system. In addition to Mars and the Asteroid belt, it is possible to nudge the orbits of NEOs to provide convenient transport to other destinations. Resources to support life on these long voyages may be gathered from the host asteroid itself. As asteroids travel over a wide range of inclinations and ranges, they offer possible platforms to perform scientific investigations. These include unique vantage point observations of the sun and planets. These observations can help us to understand solar activity and space weather. They also afford us an opportunity to see how the earth looks from afar with different perspectives. When we look for planets outside of our solar system, these observations will help us to calibrate our data. Asteroids may also be used as platforms to support very long baseline interferometry with unprecedented angular resolutions.

Potential anesthesia protocols for space exploration missions.

PubMed

Komorowski, Matthieu; Watkins, Sharmila D; Lebuffe, Gilles; Clark, Jonathan B

2013-03-01

In spaceflight beyond low Earth's orbit, medical conditions requiring surgery are of a high level of concern because of their potential impact on crew health and mission success. Whereas surgical techniques have been thoroughly studied in spaceflight analogues, the research focusing on anesthesia is limited. To provide safe anesthesia during an exploration mission will be a highly challenging task. The research objective is thus to describe specific anesthesia procedures enabling treatment of pre-identified surgical conditions. Among the medical conditions considered by the NASA Human Research Program Exploration Medical Capability element, those potentially necessitating anesthesia techniques have been identified. The most appropriate procedure for each condition is thoroughly discussed. The substantial cost of training time necessary to implement regional anesthesia is pointed out. Within general anesthetics, ketamine combines the unique advantages of preservation of cardiovascular stability, the protective airway reflexes, and spontaneous ventilation. Ketamine side effects have for decades tempered enthusiasm for its use, but recent developments in mitigation means broadened its indications. The extensive experience gathered in remote environments, with minimal equipment and occasionally by insufficiently trained care providers, confirms its high degree of safety. Two ketamine-based anesthesia protocols are described with their corresponding indications. They have been designed taking into account the physiological changes occurring in microgravity and the specific constraints of exploration missions. This investigation could not only improve surgical care during long-duration spaceflights, but may find a number of terrestrial applications in isolated or austere environments.

Victimization among Peruvian Adolescents: Insights into Mental/Emotional Health from the Young Lives Study

ERIC Educational Resources Information Center

Lister, Cameron E.; Merrill, Ray M.; Vance, David L.; West, Joshua H.; Hall, Parley C.; Crookston, Benjamin T.

2015-01-01

Background: Bullying is a global problem among children and adolescents. The purpose of this study was to explore bully victimization in Peru and to identify potential adverse mental health and social outcomes resulting from bully victimization. Methods: This study analyzed data from an ongoing prospective cohort of children taking part in the…

Why Didn't I Know This before? Psychoanalysis, Social Studies Education, and "The Shock Doctrine"

ERIC Educational Resources Information Center

Garrett, H. James

2012-01-01

In this essay, the author employs psychoanalytic inquiry (Britzman, 1998; Felman, 1992; Lacan, 1988) to think about the relationships between pedagogy, trauma, and crisis in the contexts of social studies and teacher education. The paper explores a potential space in social studies education that can acknowledge the psychic consequences of…

Linking public relations processes and organizational effectiveness at a state health department.

PubMed

Wise, Kurt

2003-01-01

This qualitative case study explored a state health department's relationships with strategic constituencies from a public relations perspective. The relationships were explored within the theoretical framework of the Excellence Theory, the dominant paradigm in public research. Findings indicate application of the Excellence Theory has the potential to increase organizational effectiveness at public health entities. With respect to the case investigated, findings indicate that the state health department could increase its organizational effectiveness through the adoption of recommendations based on the Excellence Theory.

Exploring Mass Transfer in Mesoporous Zeolites by NMR Diffusometry

PubMed Central

Mehlhorn, Dirk; Valiullin, Rustem; Kärger, Jörg; Cho, Kanghee; Ryoo, Ryong

2012-01-01

With the advent of mesoporous zeolites, the exploration of their transport properties has become a task of primary importance for the auspicious application of such materials in separation technology and heterogeneous catalysis. After reviewing the potential of the pulsed field gradient method of NMR (PFG NMR) for this purpose in general, in a case study using a specially prepared mesoporous zeolite NaCaA as a host system and propane as a guest molecule, examples of the attainable information are provided. PMID:28817004

The exploration of Titan with an orbiter and a lake probe

NASA Astrophysics Data System (ADS)

Mitri, Giuseppe; Coustenis, Athena; Fanchini, Gilbert; Hayes, Alex G.; Iess, Luciano; Khurana, Krishan; Lebreton, Jean-Pierre; Lopes, Rosaly M.; Lorenz, Ralph D.; Meriggiola, Rachele; Moriconi, Maria Luisa; Orosei, Roberto; Sotin, Christophe; Stofan, Ellen; Tobie, Gabriel; Tokano, Tetsuya; Tosi, Federico

2014-12-01

Fundamental questions involving the origin, evolution, and history of both Titan and the broader Saturnian system can be answered by exploring this satellite from an orbiter and also in situ. We present the science case for an exploration of Titan and one of its lakes from a dedicated orbiter and a lake probe. Observations from an orbit-platform can improve our understanding of Titan's geological processes, surface composition and atmospheric properties. Further, combined measurements of the gravity field, rotational dynamics and electromagnetic field can expand our understanding of the interior and evolution of Titan. An in situ exploration of Titan's lakes provides an unprecedented opportunity to understand the hydrocarbon cycle, investigate a natural laboratory for prebiotic chemistry and habitability potential, and study meteorological and marine processes in an exotic environment. We briefly discuss possible mission scenarios for a future exploration of Titan with an orbiter and a lake probe.

Exploring Bioactive Properties of Marine Cyanobacteria Isolated from the Portuguese Coast: High Potential as a Source of Anticancer Compounds

PubMed Central

Costa, Margarida; Garcia, Mónica; Costa-Rodrigues, João; Costa, Maria Sofia; Ribeiro, Maria João; Fernandes, Maria Helena; Barros, Piedade; Barreiro, Aldo; Vasconcelos, Vitor; Martins, Rosário

2013-01-01

The oceans remain a major source of natural compounds with potential in pharmacology. In particular, during the last few decades, marine cyanobacteria have been in focus as producers of interesting bioactive compounds, especially for the treatment of cancer. In this study, the anticancer potential of extracts from twenty eight marine cyanobacteria strains, belonging to the underexplored picoplanktonic genera, Cyanobium, Synechocystis and Synechococcus, and the filamentous genera, Nodosilinea, Leptolyngbya, Pseudanabaena and Romeria, were assessed in eight human tumor cell lines. First, a crude extract was obtained by dichloromethane:methanol extraction, and from it, three fractions were separated in a Si column chromatography. The crude extract and fractions were tested in eight human cancer cell lines for cell viability/toxicity, accessed with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and lactic dehydrogenase release (LDH) assays. Eight point nine percent of the strains revealed strong cytotoxicity; 17.8% showed moderate cytotoxicity, and 14.3% assays showed low toxicity. The results obtained revealed that the studied genera of marine cyanobacteria are a promising source of novel compounds with potential anticancer activity and highlight the interest in also exploring the smaller filamentous and picoplanktonic genera of cyanobacteria. PMID:24384871

Culture-dependent and culture-independent characterization of potentially functional biphenyl-degrading bacterial community in response to extracellular organic matter from Micrococcus luteus.

PubMed

Su, Xiao-Mei; Liu, Yin-Dong; Hashmi, Muhammad Zaffar; Ding, Lin-Xian; Shen, Chao-Feng

2015-05-01

Biphenyl (BP)-degrading bacteria were identified to degrade various polychlorinated BP (PCB) congers in long-term PCB-contaminated sites. Exploring BP-degrading capability of potentially useful bacteria was performed for enhancing PCB bioremediation. In the present study, the bacterial composition of the PCB-contaminated sediment sample was first investigated. Then extracellular organic matter (EOM) from Micrococcus luteus was used to enhance BP biodegradation. The effect of the EOM on the composition of bacterial community was investigated by combining with culture-dependent and culture-independent methods. The obtained results indicate that Proteobacteria and Actinobacteria were predominant community in the PCB-contaminated sediment. EOM from M. luteus could stimulate the activity of some potentially difficult-to-culture BP degraders, which contribute to significant enhancement of BP biodegradation. The potentially difficult-to-culture bacteria in response to EOM addition were mainly Rhodococcus and Pseudomonas belonging to Gammaproteobacteria and Actinobacteria respectively. This study provides new insights into exploration of functional difficult-to-culture bacteria with EOM addition and points out broader BP/PCB degrading, which could be employed for enhancing PCB-bioremediation processes. © 2015 The Authors. Microbial Biotechnology published by John Wiley & Sons Ltd and Society for Applied Microbiology.

NASA's Solar System Exploration Research Virtual Institute: Science and Technology for Lunar Exploration

NASA Technical Reports Server (NTRS)

Schmidt, Greg; Bailey, Brad; Gibbs, Kristina

2015-01-01

The NASA Solar System Exploration Research Virtual Institute (SSERVI) is a virtual institute focused on research at the intersection of science and exploration, training the next generation of lunar scientists, and development and support of the international community. As part of its mission, SSERVI acts as a hub for opportunities that engage the larger scientific and exploration communities in order to form new interdisciplinary, research-focused collaborations. The nine domestic SSERVI teams that comprise the U.S. complement of the Institute engage with the international science and exploration communities through workshops, conferences, online seminars and classes, student exchange programs and internships. SSERVI represents a close collaboration between science, technology and exploration enabling a deeper, integrated understanding of the Moon and other airless bodies as human exploration moves beyond low Earth orbit. SSERVI centers on the scientific aspects of exploration as they pertain to the Moon, Near Earth Asteroids (NEAs) and the moons of Mars, with additional aspects of related technology development, including a major focus on human exploration-enabling efforts such as resolving Strategic Knowledge Gaps (SKGs). The Institute focuses on interdisciplinary, exploration-related science focused on airless bodies targeted as potential human destinations. Areas of study represent the broad spectrum of lunar, NEA, and Martian moon sciences encompassing investigations of the surface, interior, exosphere, and near-space environments as well as science uniquely enabled from these bodies. This research profile integrates investigations of plasma physics, geology/geochemistry, technology integration, solar system origins/evolution, regolith geotechnical properties, analogues, volatiles, ISRU and exploration potential of the target bodies. New opportunities for both domestic and international partnerships are continually generated through these research and community development efforts, and SSERVI can further serve as a model for joint international scientific efforts through its creation of bridges across disciplines and between countries. Since the inception of the NASA Lunar Science Institute (SSERVIs predecessor), it has and will continue to contribute in many ways toward the advancement of lunar science and the eventual human exploration of the Moon.

The Land of Opportunity: Human Return to Meridiani Planum

NASA Technical Reports Server (NTRS)

Cohen, Barbara A.; Seibert, Michael A.

2015-01-01

Meridiani Planum is a broad expanse of Martian real estate possessing extremely safe landing characteristics and extensive areas with high trafficability, with compelling science motivations to decipher the climatic and hydrologic evolution of Mars and potential for resource extraction. We propose southwestern Meridiani Planum as a potential landing site for human exploration of Mars. Figure 1 shows our proposed exploration zone (EZ) and several potential science regions of interest (ROIs)

Modeling of GE Appliances: Cost Benefit Study of Smart Appliances in Wholesale Energy, Frequency Regulation, and Spinning Reserve Markets

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

Fuller, Jason C.; Parker, Graham B.

This report is the second in a series of three reports describing the potential of GE’s DR-enabled appliances to provide benefits to the utility grid. The first report described the modeling methodology used to represent the GE appliances in the GridLAB-D simulation environment and the estimated potential for peak demand reduction at various deployment levels. The third report will explore the technical capability of aggregated group actions to positively impact grid stability, including frequency and voltage regulation and spinning reserves, and the impacts on distribution feeder voltage regulation, including mitigation of fluctuations caused by high penetration of photovoltaic distributed generation.more » In this report, a series of analytical methods were presented to estimate the potential cost benefit of smart appliances while utilizing demand response. Previous work estimated the potential technical benefit (i.e., peak reduction) of smart appliances, while this report focuses on the monetary value of that participation. The effects on wholesale energy cost and possible additional revenue available by participating in frequency regulation and spinning reserve markets were explored.« less

Geochemical Analysis of Parasequences within the Productive Middle Member of the Eagle Ford Formation at Lozier Canyon near Del Rio, Texas

NASA Astrophysics Data System (ADS)

Shane, Timothy E.

The middle member of the Eagle Ford formation is a heterogeneous, carbonate-shale unit that is a focus of unconventional oil and gas exploration in southern Texas. Exploration results have been mixed because of the apparent heterogeneity of the member. In this study, the extent of heterogeneities in the Eagle Ford on the "bedding-scale" were examined by evaluating changes in organic and inorganic geochemistry. Samples were collected vertically in outcrop covering four non-consecutive parasequences. These samples were analyzed using a Rock Eval 6 Analyzer(TM) to determine source rock generative potential and a Niton(TM) XRF to evaluate inorganic geochemistry to identify changes in paleoredox conditions, paleoproductivity, and clastic influx. From pyrolysis data, it is determined that Parasequence 1 potentially displays an increase in source rock potential, Parasequence 2 potentially displays a constant source rock potential, and Parasequences 3 and 4 potentially display overall decreases in source rock potential during deposition. From the inferred paleoredox conditions, paleoproductivity, and clastic influx, it is determined that Parasequence 1 experienced a potential increase in oxygen abundance, Parasequence 2 experienced a potential decrease in oxygen abundance, and Parasequences 3 and 4 potentially experienced increases in oxygen abundance during deposition. It is concluded that geochemical heterogeneities do exist on a bedding scale within the parasequences of the middle member of the Eagle Ford. Additional comprehensive sampling and analysis is recommended in the future in order to tie these data to subsurface data for economic application.

Science exploration opportunities for manned missions to the Moon, Mars, Phobos, and an asteroid

NASA Technical Reports Server (NTRS)

Nash, Douglas B.; Plescia, Jeffrey; Cintala, Mark; Levine, Joel; Lowman, Paul; Mancinelli, Rocco; Mendell, Wendell; Stoker, Carol; Suess, Steven

1989-01-01

Scientific exploration opportunities for human missions to the Moon, Phobos, Mars, and an asteroid are addressed. These planetary objects are of prime interest to scientists because they are the accessible, terresterial-like bodies most likely to be the next destinations for human missions beyond Earth orbit. Three categories of science opportunities are defined and discussed: target science, platform science, and cruise science. Target science is the study of the planetary object and its surroundings (including geological, biological, atmospheric, and fields and particle sciences) to determine the object's natural physical characteristics, planetological history, mode of origin, relation to possible extant or extinct like forms, surface environmental properties, resource potential, and suitability for human bases or outposts. Platform science takes advantage of the target body using it as a site for establishing laboratory facilities and observatories; and cruise science consists of studies conducted by the crew during the voyage to and from a target body. Generic and specific science opportunities for each target are summarized along with listings of strawman payloads, desired or required precursor information, priorities for initial scientific objectives, and candidate landing sites. An appendix details the potential use of the Moon for astronomical observatories and specialized observatories, and a bibliography compiles recent work on topics relating to human scientific exploration of the Moon, Phobos, Mars, and asteroids. It is concluded that there are a wide variety of scientific exploration opportunities that can be pursued during human missions to planetary targets but that more detailed studies and precursor unmanned missions should be carried out first.

78 FR 2480 - Reports, Forms, and Record Keeping Requirements

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-11

... research, will also help to inform a quantitative survey that will explore potential redesigns for the New... hours. Number of Respondents: 80. The results of this research will be used to inform a quantitative survey that will explore potential redesigns for the New Car Assessment Program's Government 5-Star...

Examining Latina College Experiences

ERIC Educational Resources Information Center

Romero, Amanda R.

2012-01-01

The purposes of this qualitative narrative study were to explore the potential areas of conflict Latina college students experience between their educational goals and traditional cultural gender roles and expectations. Participants were selected utilizing purposeful sampling methods. All participants were first-generation college students.…

Implementation of MEPDG for asphalt pavement with RAP.

DOT National Transportation Integrated Search

2013-06-01

This study explored the potential of using high reclaimed asphalt pavement (RAP) content with hot mix asphalt (HMA) in base and surface courses for conditions prevailing in Oklahoma. A total of eight Superpave mixes (four mixes for each of two field ...

Mechanisms linking the social environment to health in African Americans

USDA-ARS?s Scientific Manuscript database

The social environment may influence health directly or indirectly through psychosocial factors, such as perceived stress, depressive symptoms and discrimination. This study explored potential psychosocial mediators of the associations between the social environment and physical and mental health in...

The Performance and Registration Information Systems Management (PRISM) pilot demonstration project

DOT National Transportation Integrated Search

1999-12-01

The Intermodal Surface Transportation Efficiency Act of 1991 mandated a study to explore the potential of the commercial motor vehicle (CMV) registration process as a safety enforcement tool for reducing CMV accidents. The project sought to establish...

Development of decision support systems for real-time freeway traffic routing : volume II.

DOT National Transportation Integrated Search

1998-01-01

Real-time traffic flow routing is a promising approach to alleviating congestion. Existing approaches to developing real-time routing strategies, however, have limitations. This study explored the potential for using case-based reasoning (CBR), an em...

Analysis of movable bus stop boarding and alighting areas.

DOT National Transportation Integrated Search

2013-05-01

This study explored the feasibility of using movable and reusable boarding and alighting (B&A) pads at bus stops. : Potential design alternatives in terms of materials and structural support for these pads were evaluated. The review : focused on the ...

Research-derived insights into surface geochemical hydrocarbon exploration

USGS Publications Warehouse

Price, L.C.

1996-01-01

Research studies based on foreland basins (mainly in eastern Colorado) examined three surface geochemical exploration (SGE) methods as possible hydrocarbon (HC) exploration techniques. The first method, microbial soil surveying, has high potential as an exploration tool, especially hi development and enhanced recovery operations. Integrative adsorption, the second technique, is not effective as a quantitative SGE method because water, carbon dioxide, nitrous oxide, unsaturated hydrocarbons, and organic compounds are collected by the adsorbent (activated charcoal) much more strongly than covalently bonded microseeping Q-Cs thermogenic HCs. Qualitative comparisons (pattern recognition) of C8+ mass spectra cannot gauge HC gas microseepage that involves only the Q-Cs HCs. The third method, soil cakite surveying, also has no potential as an exploration tool. Soil calcite concentrations had patterns with pronounced areal contrasts, but these patterns had no geometric relationship to surface traces of established or potential production, that is, the patterns were random. Microscopic examination of thousands of soils revealed that soil calcite was an uncrystallized caliche coating soil particles. During its precipitation, caliche captures or occludes any gases, elements, or compounds in its immediate vicinity. Thus, increased signal intensity of some SGE methods should depend on increasing soil calcite concentrations. Analyses substantiate this hypothesis. Because soil calcite has no utility as a surface exploration tool, any surface method that depends on soil calcite has a diminished utility as an SGE tool. Isotopic analyses of soil calcites revealed carbonate carbon ??13C values of -4.0 to +2.07co (indicating a strong influence of atmospheric CO2) as opposed to expected values of-45 to -30%c if the carbonate carbon had originated from microbial oxidation of microseeping HC gases. These analyses confirm a surface origin for this soil calcite (caliche), which is not necessarily related to HC gas microseepage. This previously unappreciated pivotal role of caliche is hypothesized to contribute significantly to the poor and inconsistent results of some SGE methods.

The Impact of a Computer-Mediated Shadowing Activity on ESL Speaking Skill Development: A Pilot Study

ERIC Educational Resources Information Center

Mishima, Masakazu; Cheng, Lixia

2017-01-01

This pilot study explored the instructional value and potential of a computer-mediated shadowing activity for improving English as a Second Language (ESL) learners' speech intelligibility. Prospective International Teaching Assistants (ITAs), who were enrolled in an ESL classroom communication class at a large public university, completed a…

Quality Professional Development for Secondary Science Teachers

ERIC Educational Resources Information Center

Mchazlett, Dwight Henry, Jr.

2015-01-01

This record of study (ROS) explores the perceptions of three high school biology teachers who implemented a form of the Japanese originated Lesson Study Professional Development (LS PD) model. Additionally, this ROS reports on the perceptions of the internal stakeholders with regard to the model's viability as a potential solution to a proposed…

Exploring Factors Influencing Acceptance and Use of Video Digital Libraries

ERIC Educational Resources Information Center

Ju, Boryung; Albertson, Dan

2018-01-01

Introduction: This study examines the effects of certain key factors on users' intention to ultimately adopt and use video digital libraries for facilitating their information needs. The individual factors identified for this study, based on their given potential to influence use and acceptance of video digital libraries, were categorised for data…

Drink Availability is Associated with Enhanced Examination Performance in Adults

ERIC Educational Resources Information Center

Pawson, Chris; Gardner, Mark R.; Doherty, Sarah; Martin, Laura; Soares, Rute; Edmonds, Caroline J.

2013-01-01

While dehydration has negative effects on memory and attention, few studies have investigated whether drinking water can enhance cognitive performance, and none have addressed this in a real-world setting. In this study we explored the potential benefits of the availability of water for undergraduates. The exam performance of students who brought…

Teacher Training through Social Networking Platforms: A Case Study on Facebook

ERIC Educational Resources Information Center

Çevik, Yasemin Demiraslan; Çelik, Serkan; Haslaman, Tülin

2014-01-01

Numerous studies have attempted to explain the role of social networking platforms within educational environments, though none of them has reported on their potential for enhancing professional development in education. The purpose of this qualitative research was to explore the reflections of prospective teachers who were assigned to design and…

Lyricism, Identity, and the Power of Lyricism as the Third Space

ERIC Educational Resources Information Center

Brown, Bryan A.; Cooks, Jamal; Cross, Keith

2016-01-01

This study used the construct of "lyricism" as an instructional practice to explore the identity connections and cognitive learning potential embedded in instruction in a culturally relevant context. Through a 5-week mixed methods study of students using the principles of lyricism (e.g., metaphor, double entendre, personification,…

The Potential of Teaching Schools in Enabling Student Teacher Learning for the Teaching Profession

ERIC Educational Resources Information Center

Ramsaroop, Sarita; Gravett, Sarah

2017-01-01

In 2011 the Integrated Strategic Planning Framework for Teacher Education and Development in South Africa was promulgated. This framework proposes the establishment of teaching schools to strengthen pre-service teacher education. This study arises from this initiative. A generic qualitative study was undertaken to explore the views of research…

Trial and Error: Negotiating Manhood and Struggling to Discover True Self

ERIC Educational Resources Information Center

Foste, Zak; Edwards, Keith; Davis, Tracy

2012-01-01

Using a case study approach , this article explores how men become restricted in experiencing a full range of emotions and human potential. After reviewing current literature describing the pressures men face to conform to traditional ideologies of masculinity, the case study methodology is described, results presented, and implications for…

Acculturation Style and Alcohol Use among African American College Students: An Exploration of Potential Moderators

ERIC Educational Resources Information Center

Abdullah, Tahirah; Brown, Tamara L.

2012-01-01

This study examined whether a relationship exists between acculturation and alcohol use among African American college students and if the relationship varies by religiosity and gender. Most researchers use unidimensional African American acculturation measures that cannot capture the construct's complexity; this study is the first to use a…

Work-Life Benefits and Job Pursuit Intentions: The Role of Anticipated Organizational Support

ERIC Educational Resources Information Center

Casper, Wendy J.; Buffardi, Louis C.

2004-01-01

The current study examined the impact of two work-life benefits, work schedule flexibility, and dependent care assistance, on applicants' intentions to pursue jobs with potential employers. The study also explored whether anticipated organizational support would mediate the relationships between these two work-life benefits and job pursuit…

Web Conferencing of Pre-Service Teachers' Practicum in Remote Schools

ERIC Educational Resources Information Center

Gronn, Donna; Romeo, Geoff; McNamara, Sue; Teo, Yiong Hwee

2013-01-01

The purpose of this study was to field-test several conferencing technologies in regional schools to determine whether the technologies are appropriate for the needs of the university supervisor, trainee teachers and supervising teachers in practicum placements. The study also explored the potential of technology for other related purposes. Four…

Transforming the Social Practices of Learning with Representations: A Study of Disciplinary Discourse

ERIC Educational Resources Information Center

Nichols, Kim; Hanan, Jim; Ranasinghe, Muditha

2013-01-01

This study used an interactive dynamic simulation of action potential to explore social practices of learning among first year undergraduate biology students. It aimed to create a learning environment that fosters knowledge building discourse through working with multiple concept-specific representations. Three hundred and eighty-nine students and…

Promoting Teacher Learning through Learning Study Discourse: The Case of Science Teachers in Singapore

ERIC Educational Resources Information Center

Tan, Yuen Sze Michelle; Nashon, Samson Madera

2013-01-01

The potential of a theory of variation-framed learning study, a teacher professional development approach, to help teachers overcome curricular and pedagogical challenges associated with teaching new science curricula content was explored. With a group of Singapore teachers collaboratively planning and teaching new genetics content,…

Minecraft as a Creative Tool: A Case Study

ERIC Educational Resources Information Center

Cipollone, Maria; Schifter, Catherine C.; Moffat, Rick A.

2014-01-01

Many scholars are enthusiastic about the potential learning opportunities present in the sandbox-style gaming environment, Minecraft. In the following case study, the authors explored the use of Minecraft in a high school literature class and the presentation of characterization and plot in three student-made machinima, or films made in the game…

Sustainability Learning through Gaming: An Exploratory Study

ERIC Educational Resources Information Center

Fabricatore, Carlo; Lopez, Ximena

2012-01-01

This study explored the potential of digital games as learning environments to develop mindsets capable of dealing with complexity in the domain of sustainability. Building sustainable futures requires the ability to deal with the complex dynamics that characterize the world in which we live. As central elements in this system, we must develop the…

A New Context Affording for Regulation: The Case of Musical Play

ERIC Educational Resources Information Center

Zachariou, Antonia; Whitebread, David

2017-01-01

The present study set out to investigate theoretical speculations that regulation and musical play, an initial manifestation of musicality, are directly linked. This study aimed to explore the potential for regulation to occur during musical play and investigate the nature of the regulatory behaviours. Thirty-six children, aged 6 and 8, were…

Truth-Telling in the UK Jewish Studies Classroom for Orthodox Educators

ERIC Educational Resources Information Center

Burman, Chaim

2017-01-01

UK Orthodox Jewish educators face a number of ethical dilemmas surrounding truth-telling in the classroom. While they must comply with government legislation and high standards of professional conduct, they may also wish their practice to be informed by halachic considerations. This theoretical study explores the potential tensions that may arise…

A World of Learning: Canada's Performance and Potential in International Education 2012

ERIC Educational Resources Information Center

Humphries, Jennifer; Knight-Grofe, Janine; McDine, David

2012-01-01

This annual report explores the state of international education in Canada, taking an in-depth look at international students, study abroad by Canadian students, Canadian education overseas, as well as the overall internationalization agenda in Canada. The report features results of an international student survey and case studies from member…

A World of Learning: Canada's Performance and Potential in International Education 2013

ERIC Educational Resources Information Center

Humphries, Jennifer; Rauh, Karen; McDine, David

2013-01-01

This annual report explores the state of international education in Canada, taking an in-depth look at international students, study abroad by Canadian students, Canadian education overseas, as well as the overall internationalization agenda in Canada. The report features results of an international student survey and case studies from member…

A World of Learning: Canada's Performance and Potential in International Education

ERIC Educational Resources Information Center

Canadian Bureau for International Education (CBIE) - Bureau canadien de l’éducation internationale (BCEI), 2015

2015-01-01

This annual report explores the state of international education in Canada, taking an in-depth look at international students, study abroad by Canadian students, Canadian education overseas, as well as the overall internationalization agenda in Canada. The report features results of an international student survey and case studies from member…

Constructing the Color-Blind Classroom: Teachers' Perspectives on Race and Schooling

ERIC Educational Resources Information Center

Stoll, Laurie Cooper

2014-01-01

The purpose of this study is to explore teachers' attitudes towards race and schooling, and the ways in which they "do" race in contemporary "color-blind" learning environments where social location is not believed to exert any meaningful influence on students' potential for success. Data for this study were gathered through…

The Costs and Potential Benefits of Alternative Scholarly Publishing Models

ERIC Educational Resources Information Center

Houghton, John W.

2011-01-01

Introduction: This paper reports on a study undertaken for the UK Joint Information Systems Committee (JISC), which explored the economic implications of alternative scholarly publishing models. Rather than simply summarising the study's findings, this paper focuses on the approach and presents a step-by-step account of the research process,…

Exploring English Language Teaching in an Ecuadorian Urban Secondary Institution

ERIC Educational Resources Information Center

Burgin, Ximena; Daniel, Mayra

2017-01-01

This article presents a case study focused on the pedagogy of nine English language teachers' pedagogy in Ecuador. The significance of this study is its potential to inform practitioners, teacher educators, and policymakers in countries where teachers need to be prepared to teach in multilingual settings, such as Ecuador. Data analyses of nine…

The Differences between Intellectually Gifted and Average Students on a Set of Leadership Competencies

ERIC Educational Resources Information Center

Muammar, Omar M.

2015-01-01

The current study investigates differences in the leadership skills between intellectually gifted and average students and explores the relationship between intelligence and leadership potential. Participants in this study were 176 students (57 males and 120 females) from an Eastern Province University in Saudi Arabia. Students were selected on a…

Racial Differences in Perceptions of Social Support in Consumer-Centered Services

ERIC Educational Resources Information Center

Woodward, Amanda Toler; Mowbray, Carol T.; Holter, Mark C.; Bybee, Deborah

2007-01-01

The purpose of this study was to explore potential racial differences in the experience of support offered by consumer-centered services for adults with serious mental illness. The study used hierarchical linear modeling to examine the level of support consumers report receiving from programs and the extent to which program-level characteristics…

Towards the Development of a Biliterate Pedagogy: A Case Study of Emerging Biliterate Writing

ERIC Educational Resources Information Center

Butvilofsky, Sandra Adriana

2010-01-01

More than 60% of children labeled English language learners in U.S. schools today are simultaneous bilinguals, and little is understood about their bilingual and biliterate potential, because theories of sequential bilingualism dominate the field. Most studies exploring bilingual children's writing development have focused almost exclusively on…

Education, the Brain and Dementia: Neuroprotection or Compensation?

ERIC Educational Resources Information Center

Brayne, Carol; Ince, Paul G.; Keage, Hannah A. D.; McKeith, Ian G.; Matthews, Fiona E.; Polvikoski, Tuomo; Sulkava, Raimo

2010-01-01

The potential protective role of education for dementia is an area of major interest. Almost all older people have some pathology in their brain at death but have not necessarily died with dementia. We have explored these two observations in large population-based cohort studies (Epidemiological Clinicopathological Studies in Europe; EClipSE) in…

Perceptions of the Usefulness and Use of Research Conducted in Other Countries

ERIC Educational Resources Information Center

Burchett, Helen; Lavis, John N.; Mayhew, Susannah H.; Dobrow, Mark J.

2012-01-01

Semi-structured interviews in Ghana and England explored perceptions of the usefulness and use of foreign research (ie, beyond the original study country) compared to locally conducted research (ie, conducted in Ghana). There was a preference for locally conducted studies, although interviewees generally recognised the potential usefulness of…

Multilevel Examination of Burnout among High School Staff: Importance of Staff and School Factors

ERIC Educational Resources Information Center

O'Brennan, Lindsey; Pas, Elise; Bradshaw, Catherine

2017-01-01

Previous studies have linked teacher burnout with job performance, satisfaction, and retention; however, there has been limited exploration of potential individual and school contextual factors that may influence burnout. The current study examined high school staff members' reports of burnout as they relate to staff demographics and perceptions…

The Effect of College Students' Self-Generated Computerized Mind Mapping on Their Reading Achievement

ERIC Educational Resources Information Center

Sabbah, Sabah Salman

2015-01-01

This study explored the potential effect of college students' self-generated computerized mind maps on their reading comprehension. It also investigated the subjects' attitudes toward generating computerized mind maps for reading comprehension. The study was conducted in response to the inability of the foundation-level students, who were learning…

How Can We Create the Conditions for Students' Freedom of Speech within Studies in Art?

ERIC Educational Resources Information Center

Matthews, Miranda

2008-01-01

This study investigates how the dynamics of students' voice can be productively brought into teaching situations. I have researched the conditions required for constructive freedom of speech, within art education. I explored the potential for vocal peer assessment and for students' ownership of their educational experiences, for the…

Why Do National Board Certified Teachers from Generation X Leave the Classroom?

ERIC Educational Resources Information Center

Crain, Julie Christi

2013-01-01

This qualitative multiple case study focused on National Board Certified teachers from Generation X who have left the classroom. The study explored aspects of the teaching profession, the National Board Certification process, and Generation X as potential influences for National Board Certified teachers from Generation X to leave the classroom.…

Applications of Text Analysis Tools for Spoken Response Grading

ERIC Educational Resources Information Center

Crossley, Scott; McNamara, Danielle

2013-01-01

This study explores the potential for automated indices related to speech delivery, language use, and topic development to model human judgments of TOEFL speaking proficiency in second language (L2) speech samples. For this study, 244 transcribed TOEFL speech samples taken from 244 L2 learners were analyzed using automated indices taken from…

Serving a Higher Power: The Influence of Alternative Break Programs on Students' Religiousness

ERIC Educational Resources Information Center

Niehaus, Elizabeth; Rivera, Mark

2016-01-01

The purpose of this study was to explore the relationship between students' religiousness and participation in alternative breaks (ABs) using both survey and interview data from the National Survey of Alternative Breaks. Findings from this mixed methods study demonstrate the potential for ABs to facilitate religiousness and help students connect…

Defense Science Board Summer Study on Strategic Surprise

DTIC Science & Technology

2015-07-01

actions and hedges against changing priorities. The study focused on potential regrets in eight areas and provides recommendations to avoid ... avoid   potential  regrets  in 2024.  A Changing Context for Operations  The study explored current and future operational contexts. The study defined...hedge against these and similar surprises—and to  avoid   regretting  actions or lack  of action taken today—the study evaluated several key mission and

The power of local action in occupational health: the adoption of local exhaust ventilation in the Chicago tuckpointing trade.

PubMed

Weinstein, Marc; Susi, Pam; Goldberg, Mark

2016-04-01

Silica is a pervasive and potentially deadly occupational hazard in construction. The occupational risk posed by silica has long been known, but efforts to use engineering controls to minimize dust generation in tuckpointing operations, a masonry restoration specialty, have been slow. The objective of this study is to explore how local innovation in occupational safety and health may emerge, absent the establishment of national standards. This study uses a case study to explore the adoption of local exhaust ventilation in tuckpointing operations in the Chicago area. Sources of data for this research include interviews with a diverse range of key informants and the review of archival material. This case study found local unions, municipal regulators, contractors, and major public users of construction services played a central role in the events and milestones that led to the early adoption of local exhaust ventilation in Chicago. The adoption of local exhaust ventilation technology in Chicago demonstrates the potential for local actors to fill an important void when rulemaking in vital areas of occupational of health impedes effective national regulation.

Exploring the potential of biobeds for the depuration of pesticide-contaminated wastewaters from the citrus production chain: laboratory, column and field studies.

PubMed

Omirou, M; Dalias, P; Costa, C; Papastefanou, C; Dados, A; Ehaliotis, C; Karpouzas, D G

2012-07-01

The high wastewater volumes produced during citrus production at pre- and post-harvest level presents serious pesticide point-source pollution for groundwater bodies. Biobeds are used for preventing such point-source pollution occurring at farm level. We explored the potential of biobeds for the depuration of wastewaters produced through the citrus production chain following a lab-to-field experimentation. The dissipation of pesticides used pre- or post-harvest was studied in compost-based biomixtures, soil, and a straw-soil mixture. A biomixture of composted grape seeds and skins (GSS-1) showed the highest dissipation capacity. In subsequent column studies, GSS-1 restricted pesticides leaching even at the highest water load (462 Lm(-3)). Ortho-phenylphenol was the most mobile compound. Studies in an on-farm biobed filled with GSS-1 showed that pesticides were fully retained and partially or fully dissipated. Overall biobeds could be a valuable solution for the depuration of wastewaters produced at pre- and post-harvest level by citrus fruit industries. Copyright © 2012 Elsevier Ltd. All rights reserved.

A vector space model approach to identify genetically related diseases.

PubMed

Sarkar, Indra Neil

2012-01-01

The relationship between diseases and their causative genes can be complex, especially in the case of polygenic diseases. Further exacerbating the challenges in their study is that many genes may be causally related to multiple diseases. This study explored the relationship between diseases through the adaptation of an approach pioneered in the context of information retrieval: vector space models. A vector space model approach was developed that bridges gene disease knowledge inferred across three knowledge bases: Online Mendelian Inheritance in Man, GenBank, and Medline. The approach was then used to identify potentially related diseases for two target diseases: Alzheimer disease and Prader-Willi Syndrome. In the case of both Alzheimer Disease and Prader-Willi Syndrome, a set of plausible diseases were identified that may warrant further exploration. This study furthers seminal work by Swanson, et al. that demonstrated the potential for mining literature for putative correlations. Using a vector space modeling approach, information from both biomedical literature and genomic resources (like GenBank) can be combined towards identification of putative correlations of interest. To this end, the relevance of the predicted diseases of interest in this study using the vector space modeling approach were validated based on supporting literature. The results of this study suggest that a vector space model approach may be a useful means to identify potential relationships between complex diseases, and thereby enable the coordination of gene-based findings across multiple complex diseases.

Recov'Heat: An estimation tool of urban waste heat recovery potential in sustainable cities

NASA Astrophysics Data System (ADS)

Goumba, Alain; Chiche, Samuel; Guo, Xiaofeng; Colombert, Morgane; Bonneau, Patricia

2017-02-01

Waste heat recovery is considered as an efficient way to increase carbon-free green energy utilization and to reduce greenhouse gas emission. Especially in urban area, several sources such as sewage water, industrial process, waste incinerator plants, etc., are still rarely explored. Their integration into a district heating system providing heating and/or domestic hot water could be beneficial for both energy companies and local governments. EFFICACITY, a French research institute focused on urban energy transition, has developed an estimation tool for different waste heat sources potentially explored in a sustainable city. This article presents the development method of such a decision making tool which, by giving both energetic and economic analysis, helps local communities and energy service companies to make preliminary studies in heat recovery projects.

Virtual voices: social support and stigma in postnatal mental illness Internet forums.

PubMed

Moore, Donna; Ayers, Susan

2017-06-01

Many women with postnatal mental illness do not get the treatment they need and this is often because stigma prevents disclosure. The purpose of this study was to explore online social support for postnatal mental illness, how women experience stigma and potential disadvantages of using Internet forums. Interviews were conducted with fifteen participants who had suffered postnatal mental illness and had used forums. Systematic thematic analysis identified common themes in relation to social support, stigma and disadvantages of using forums. Most women felt they benefited from visiting forums by developing a shared understanding and discourse about their illness. Findings suggest future research should investigate if women benefit from using online social support provided by forums, if use challenges stigma and further explore potential concerns about using forums.

Social Information Processing Mediates the Intergenerational Transmission of Aggressiveness in Romantic Relationships

PubMed Central

Fite, Jennifer E.; Bates, John E.; Holtzworth-Munroe, Amy; Dodge, Kenneth A.; Nay, Sandra Y.; Pettit, Gregory S.

2012-01-01

This study explored the K. A. Dodge (1986) model of social information processing as a mediator of the association between interparental relationship conflict and subsequent offspring romantic relationship conflict in young adulthood. The authors tested 4 social information processing stages (encoding, hostile attributions, generation of aggressive responses, and positive evaluation of aggressive responses) in separate models to explore their independent effects as potential mediators. There was no evidence of mediation for encoding and attributions. However, there was evidence of significant mediation for both the response generation and response evaluation stages of the model. Results suggest that the ability of offspring to generate varied social responses and effectively evaluate the potential outcome of their responses at least partially mediates the intergenerational transmission of relationship conflict. PMID:18540765

Prolonged action potential duration in cardiac ablation of PDK1 mice.

PubMed

Han, Zhonglin; Jiang, Yu; Yang, Zhongzhou; Cao, Kejiang; Wang, Dao W

2015-01-01

The involvement of the AGC protein kinase family in regulating arrhythmia has drawn considerable attention, but the underlying mechanisms are still not clear. The aim of this study is to explore the role of 3-phosphoinositide-dependent protein kinase-1 (PDK1), one of upstream protein kinases of the AGC protein kinase family, in the pathogenesis of dysregulated electrophysiological basis. PDK1(F/F) αMHC-Cre mice and PDK1(F/F) mice were divided into experiment group and control group. Using patch clamping technology, we explored action potential duration in both groups, and investigated the functions of transient outward potassium channel and L-type Ca(2+) channel to explain the abnormal action potential duration. Significant prolongation action potential duration was found in mice with PDK1 deletion. Further, the peak current of transient outward potassium current and L-type Ca(2+) current were decreased by 84% and 49% respectively. In addition, dysregulation of channel kinetics lead to action potential duration prolongation further. In conclusion, we have demonstrated that PDK1 participates in action potential prolongation in cardiac ablation of PDK1 mice. This effect is likely to be mediated largely through downregulation of transient outward potassium current. These findings indicate the modulation of the PDK1 pathway could provide a new mechanism for abnormal electrophysiological basis.

Electronic medical records and genomics (eMERGE) network exploration in cataract: Several new potential susceptibility loci

PubMed Central

Verma, Shefali S.; Hall, Molly A.; Goodloe, Robert J.; Berg, Richard L.; Carrell, Dave S.; Carlson, Christopher S.; Chen, Lin; Crosslin, David R.; Denny, Joshua C.; Jarvik, Gail; Li, Rongling; Linneman, James G.; Pathak, Jyoti; Peissig, Peggy; Rasmussen, Luke V.; Ramirez, Andrea H.; Wang, Xiaoming; Wilke, Russell A.; Wolf, Wendy A.; Torstenson, Eric S.; Turner, Stephen D.; McCarty, Catherine A.

2014-01-01

Purpose Cataract is the leading cause of blindness in the world, and in the United States accounts for approximately 60% of Medicare costs related to vision. The purpose of this study was to identify genetic markers for age-related cataract through a genome-wide association study (GWAS). Methods In the electronic medical records and genomics (eMERGE) network, we ran an electronic phenotyping algorithm on individuals in each of five sites with electronic medical records linked to DNA biobanks. We performed a GWAS using 530,101 SNPs from the Illumina 660W-Quad in a total of 7,397 individuals (5,503 cases and 1,894 controls). We also performed an age-at-diagnosis case-only analysis. Results We identified several statistically significant associations with age-related cataract (45 SNPs) as well as age at diagnosis (44 SNPs). The 45 SNPs associated with cataract at p<1×10−5 are in several interesting genes, including ALDOB, MAP3K1, and MEF2C. All have potential biologic relationships with cataracts. Conclusions This is the first genome-wide association study of age-related cataract, and several regions of interest have been identified. The eMERGE network has pioneered the exploration of genomic associations in biobanks linked to electronic health records, and this study is another example of the utility of such resources. Explorations of age-related cataract including validation and replication of the association results identified herein are needed in future studies. PMID:25352737

Geochemical Exploration Techniques Applicable in the Search for Copper Deposits

USGS Publications Warehouse

Chaffee, Maurice A.

1975-01-01

Geochemical exploration is an important part of copper-resource evaluation. A large number of geochemical exploration techniques, both proved and untried, are available to the geochemist to use in the search for new copper deposits. Analyses of whole-rock samples have been used in both regional and local geochemical exploration surveys in the search for copper. Analyses of mineral separates, such as biotite, magnetite, and sulfides, have also been used. Analyses of soil samples are widely used in geochemical exploration, especially for localized surveys. It is important to distinguish between residual and transported soil types. Orientation studies should always be conducted prior to a geochemical investigation in a given area in order to determine the best soil horizon and the best size of soil material for sampling in that area. Silty frost boils, caliche, and desert varnish are specialized types of soil samples that might be useful sampling media. Soil gas is a new and potentially valuable geochemical sampling medium, especially in exploring for buried mineral deposits in arid regions. Gaseous products in samples of soil may be related to base-metal deposits and include mercury vapor, sulfur dioxide, hydrogen sulfide, carbon oxysulfide, carbon dioxide, hydrogen, oxygen, nitrogen, the noble gases, the halogens, and many hydrocarbon compounds. Transported materials that have been used in geochemical sampling programs include glacial float boulders, glacial till, esker gravels, stream sediments, stream-sediment concentrates, and lake sediments. Stream-sediment sampling is probably the most widely used and most successful geochemical exploration technique. Hydrogeochemical exploration programs have utilized hot- and cold-spring waters and their precipitates as well as waters from lakes, streams, and wells. Organic gel found in lakes and at stream mouths is an unproved sampling medium. Suspended material and dissolved gases in any type of water may also be useful media. Samples of ice and snow have been used for limited geochemical surveys. Both geobotanical and biogeochemical surveys have been successful in locating copper deposits in many parts of the world. Micro-organisms, including bacteria and algae, are other unproved media that should be studied. Animals can be used in geochemical-prospecting programs. Dogs have been used quite successfully to sniff out hidden and exposed sulfide minerals. Tennite mounds are commonly composed of subsurface material, but have not as yet proved to be useful in locating buried mineral deposits. Animal tissue and waste products are essentially unproved but potentially valuable sampling media. Knowledge of the location of areas where trace-element-associated diseases in animals and man are endemic as well as a better understanding of these diseases, may aid in identifying regions that are enriched in or depleted of various elements, including copper. Results of analyses of gases in the atmosphere are proving valuable in mineral-exploration surveys. Studies involving metallic compounds exhaled by plants into the atmosphere, and of particulate matter suspended in the atmosphere are reviewed these methods may become important in the future. Remote-sensing techniques are useful for making indirect measurements of geochemical responses. Two techniques applicable to geochemical exploration are neutron-activation analysis and gamma-ray spectrometry. Aerial photography is especially useful in vegetation surveys. Radar imagery is an unproved but potentially valuable method for use in studies of vegetation in perpetually clouded regions. With the advent of modern computers, many new techniques, such as correlation analysis, regression analysis, discriminant analysis, factor analysis, cluster analysis, trend-surface analysis, and moving-average analysis can be applied to geochemical data sets. Selective use of these techniques can provide new insights into the interpretatio

CRISPR/Cas9: at the cutting edge of hepatology

PubMed Central

Pankowicz, Francis P; Jarrett, Kelsey E; Lagor, William R; Bissig, Karl-Dimiter

2018-01-01

Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 genome engineering has revolutionised biomedical science and we are standing on the cusp of medical transformation. The therapeutic potential of this technology is tremendous, however, its translation to the clinic will be challenging. In this article, we review recent progress using this genome editing technology and explore its potential uses in studying and treating diseases of the liver. We discuss the development of new research tools and animal models as well as potential clinical applications, strategies and challenges. PMID:28487442

Telepresence-enabled research and developing work practices

NASA Astrophysics Data System (ADS)

Mirmalek, Z.

2016-02-01

In the fall of 2014, a group of scientists and students conducted two weeks of telepresence-enabled research from the University of Rhode Island Inner Space Center and Woods Hole Oceanographic Institution with the Exploration Vessel Nautilus, which was at sea studying the Kick'em Jenny submarine volcano and Barbados Mud Volcanoes. The way that they conducted their work was not so different from other telepresence-enabled ocean science exploration. As a group, they spanned geographic distance, science expertise, exploration experience, and telepresence-enabled research experience. They were connected through technologies and work culture (e.g., shared habits, values, and practices particular to a community). Uniquely, their project included an NSF-sponsored cultural study on the workgroups' own use of technologies and social processes. The objective of the cultural study was, in part, to identify social and technical features of the work environment that present opportunities to better support science exploration via telepresence. Drawing from this case, and related research, I present some analysis on the developing work culture of telepresence-enabled research and highlight potential adjustments.

Rapid contemporary evolution and clonal food web dynamics

PubMed Central

Jones, Laura E.; Becks, Lutz; Ellner, Stephen P.; Hairston, Nelson G.; Yoshida, Takehito; Fussmann, Gregor F.

2009-01-01

Character evolution that affects ecological community interactions often occurs contemporaneously with temporal changes in population size, potentially altering the very nature of those dynamics. Such eco-evolutionary processes may be most readily explored in systems with short generations and simple genetics. Asexual and cyclically parthenogenetic organisms such as microalgae, cladocerans and rotifers, which frequently dominate freshwater plankton communities, meet these requirements. Multiple clonal lines can coexist within each species over extended periods, until either fixation occurs or a sexual phase reshuffles the genetic material. When clones differ in traits affecting interspecific interactions, within-species clonal dynamics can have major effects on the population dynamics. We first consider a simple predator–prey system with two prey genotypes, parametrized with data from a well-studied experimental system, and explore how the extent of differences in defence against predation within the prey population determine dynamic stability versus instability of the system. We then explore how increased potential for evolution affects the community dynamics in a more general community model with multiple predator and multiple prey genotypes. These examples illustrate how microevolutionary ‘details’ that enhance or limit the potential for heritable phenotypic change can have significant effects on contemporaneous community-level dynamics and the persistence and coexistence of species. PMID:19414472

Do medical students like communication? Validation of the German CSAS (Communication Skills Attitude Scale).

PubMed

Busch, Anne-Kathrin; Rockenbauch, Katrin; Schmutzer, Gabriele; Brähler, Elmar

2015-01-01

Attitudes towards communication skills of medical undergraduates can be gathered using the Communication Skills Attitude Scale (CSAS). We aimed to develop a German version of the CSAS (CSAS-G) in order to explore attitudes towards communication skills in a German cohort. Additionally the potential influence of demographic factors was examined. We realized the CSAS-G and conducted a survey with 529 participants from 3 different years of study. We then carried out an explorative as well as confirmatory factor analysis and compared the attitudinal scores. Multiple regression analysis was performed. The confirmatory analysis confirmed the two-subscale system revealed by the explorative factor analysis. Students indicate low levels of negative attitudes and moderate levels of positive attitudes. Attitudinal scores differ significantly in relation to gender. The CSAS-G can be used in German cohorts to evaluate attitudes towards communication skills. Medical students in our study show basically a positive approach. Further investigation is necessary to explore and understand attitudes towards communication skills of German medical students.

Explorers from space

USGS Publications Warehouse

Fary, Raymond W.

1967-01-01

The statement that a new era in exploration is opening will almost surely bring to mind the venturing of man into space and the ever more imminent exploration of the moon. The reference here, however, is to exploration of earth itself and to the unique capabilities for study of the earth that space technology will provide. Demands for water, minerals, energy, food, and for working, living and recreational space are outrunning our ability to meet them by traditional methods. In order to satisfy these demands, it is necessary now, just as it has been in the past, to look to the activities, the instruments, and the technologies that in part create the pressures for aid in meeting them. Studies being made at the U.S. Geological Survey and elsewhere of the potential applications of remote sensors in space to earth resources research indicate that now, at last, it will be possible to approach solutions on a regional or global basis. This paper discusses the plans for an Earth Resources Observational Satellites Program which will be designed for that purpose.

Integrated exploration for low-temperature geothermal resources in the Honey Lake basin, California

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

Schimschal, U.

An integrated exploration study is presented to locate low-temperature geothermal reservoirs in the Honey Lake area of northern California. Regional studies to locate the geothermal resources included gravity, infrared, water-temperature, and water-quality analyses. Five anomalies were mapped from resistivity surveys. Additional study of three anomalies by temperature-gradient and seismic methods was undertaken to define structure and potential of the geothermal resource. The gravity data show a graben structure in the area. Seismic reflection data, indicate faults associated with surface-resistivity and temperature-gradient data. The data support the interpretation that the shallow reservoirs are replenished along the fault zones by deeply circulatingmore » heated meteoric waters.« less

Integrated exploration for low-temperature geothermal resources in the Honey Lake Basin, California

USGS Publications Warehouse

Schimschal, U.

1991-01-01

An integrated exploration study is presented to locate low-temperature geothermal reservoirs in the Honey Lake area of northern California. Regional studies to locate the geothermal resources included gravity, infra-red, water-temperature, and water-quality analyses. Five anomalies were mapped from resistivity surveys. Additional study of three anomalies by temperature-gradient and seismic methods was undertaken to define structure and potential of the geothermal resource. The gravity data show a graben structure in the area. Seismic reflection data indicate faults associated with surface-resistivity and temperature-gradient data. The data support the interpretation that the shallow reservoirs are replenished along the fault zones by deeply circulating heated meteoric waters. -Author

Exploring the Potential of Direct-To-Consumer Genomic Test Data for Predicting Adverse Drug Events.

PubMed

Zhang, Patrick M; Sarkar, Indra Neil

2018-01-01

Recent technological advancements in genetic testing and the growing accessibility of public genomic data provide researchers with a unique avenue to approach personalized medicine. This feasibility study examined the potential of direct-to-consumer (DTC) genomic tests (focusing on 23andMe) in research and clinical applications. In particular, we combined population genetics information from the Personal Genome Project with adverse event reports from AEOLUS and pharmacogenetic information from PharmGKB. Primarily, associations between drugs based on co-occurring genetic variations and associations between variants and adverse events were used to assess the potential for leveraging single nucleotide polymorphism information from 23andMe. The results of this study suggest potential clinical uses of DTC tests in light of potential drug interactions. Furthermore, the results suggest great potential for analyzing associations at a population level to facilitate knowledge discovery in the realm of predicting adverse drug events.

Air cushion landing gear applications study

NASA Technical Reports Server (NTRS)

Earl, T. D.

1979-01-01

A series of air cushion landing gear (ACLG) applications was studied and potential benefits analyzed in order to identify the most attractive of these. The selected applications are new integrated designs (not retrofits) and employ a modified design approach with improved characteristics and performance. To aid the study, a survey of potential users was made. Applications were evaluated in the light of comments received. A technology scenario is developed, with discussion of problem areas, current technology level and future needs. Feasible development timetables are suggested. It is concluded that near-term development of small-size ACLG trunks, exploration of flight effects and braking are key items. The most attractive applications are amphibious with very large cargo aircraft and small general aviation having the greatest potential.

NASA's Exploration of the Red Planet: An Overview

NASA Technical Reports Server (NTRS)

Naderi, Firouz M.

2004-01-01

This viewgraph presentation reviews NASA's plans for the exploration of Mars. The reasons for the choice of Mars for exploration are reviewed: launch opportunity every 26 months, the closest planet, and potential extraterrestrial life.

Geothermal Prospecting with Remote Sensing and Geographical Information System Technologies in Xilingol Volcanic Field in the Eastern Inner Mongolia, NE China

NASA Astrophysics Data System (ADS)

Peng, F.; Huang, S.; Xiong, Y.; Zhao, Y.; Cheng, Y.

2013-05-01

Geothermal energy is a renewable and low-carbon energy source independent of climate change. It is most abundant in Cenozoic volcanic areas where high temperature can be obtained within a relatively shallow depth. Like other geological resources, geothermal resource prospecting and exploration require a good understanding of the host media. Remote sensing (RS) has the advantages of high spatial and temporal resolution and broad spatial coverage over the conventional geological and geophysical prospecting, while geographical information system (GIS) has intuitive, flexible, and convenient characteristics. In this study, we apply RS and GIS technics in prospecting the geothermal energy potential in Xilingol, a Cenozoic volcanic field in the eastern Inner Mongolia, NE China. Landsat TM/ETM+ multi-temporal images taken under clear-sky conditions, digital elevation model (DEM) data, and other auxiliary data including geological maps of 1:2,500,000 and 1:200,000 scales are used in this study. The land surface temperature (LST) of the study area is retrieved from the Landsat images with the single-channel algorithm on the platform of ENVI developed by ITT Visual Information Solutions. Information of linear and circular geological structure is then extracted from the LST maps and compared to the existing geological data. Several useful technologies such as principal component analysis (PCA), vegetation suppression technique, multi-temporal comparative analysis, and 3D Surface View based on DEM data are used to further enable a better visual geologic interpretation with the Landsat imagery of Xilingol. The Preliminary results show that major faults in the study area are mainly NE and NNE oriented. Several major volcanism controlling faults and Cenozoic volcanic eruption centers have been recognized from the linear and circular structures in the remote images. Seven areas have been identified as potential targets for further prospecting geothermal energy based on the visual interpretation of the geological structures. The study shows that GIS and RS have great application potential in the geothermal exploration in volcanic areas and will promote the exploration of renewable energy resources of great potential.

Exploring peers as a mediator of the association between depression and smoking in young adolescents.

PubMed

Ritt-Olson, Anamara; Unger, Jennifer; Valente, Tom; Nezami, Elahe; Chou, Chih-ping; Trinidad, Dennis; Milam, Joel; Earleywine, Mitchell; Tan, Sylvia; Johnson, C Anderson

2005-01-01

Recent research has suggested that depression causes teens to begin smoking to elevate their mood. Other studies, however, have suggested the reverse causal direction: smoking causes depression. To gain a more complete understanding of the relationship between smoking and depression, potential mediators should be explored. This study explored how peer influences could mediate the relationship between depression and smoking. The methodology of Baron and Kenney was followed to test for mediation and moderation. Peers mediated the relationship between depression and smoking. Separate analyses by gender showed that depression remained significantly associated with smoking when peers were included in the model for girls only. Peer influence was related to depressed affect for both genders. These results provide evidence that peer influences are an important variable to take into consideration when addressing a depression smoking relationship.

Beyond strategy: exploring the brokerage role of facilities manager in hospitals.

PubMed

Heng, H K S; McGeorge, W D; Loosemore, M

2005-01-01

Seeks to explore the brokerage role of facilities manager in hospitals, based on the premise that facilities management (FM) is largely concerned with "strategic brokerage". Strategic brokerage is the term coined by Akhaghi to explain the integration of a wide range of support services to ensure the effective operation of the core business of an organization. The research was conducted in the health service sector using a single case study approach to examine the brokerage potential for FM in a hospital in the Sydney Metropolitan area. A social network analysis technique was used to identify and analyse the communication networks of players in a hospital environment. Two general questions guided the analysis. First, what is the brokerage potential within the FM process? Second, where are the opportunities for brokerage? The results indicate that identifying relationship linkages between different functional units can create potential brokerage opportunities. The proposition is made that viewing FM from a brokerage perspective can add value to the delivery of health-care services.

Self-compassion: a potential resource for young women athletes.

PubMed

Mosewich, Amber D; Kowalski, Kent C; Sabiston, Catherine M; Sedgwick, Whitney A; Tracy, Jessica L

2011-02-01

Self-compassion has demonstrated many psychological benefits (Neff, 2009). In an effort to explore self-compassion as a potential resource for young women athletes, we explored relations among self-compassion, proneness to self-conscious emotions (i.e., shame, guilt-free shame, guilt, shame-free guilt, authentic pride, and hubristic pride), and potentially unhealthy self-evaluative thoughts and behaviors (i.e., social physique anxiety, obligatory exercise, objectified body consciousness, fear of failure, and fear of negative evaluation). Young women athletes (N = 151; Mage = 15.1 years) participated in this study. Self-compassion was negatively related to shame proneness, guilt-free shame proneness, social physique anxiety, objectified body consciousness, fear of failure, and fear of negative evaluation. In support of theoretical propositions, self-compassion explained variance beyond self-esteem on shame proneness, guilt-free shame proneness, shame-free guilt proneness, objectified body consciousness, fear of failure, and fear of negative evaluation. Results suggest that, in addition to self-esteem promotion, self-compassion development may be beneficial in cultivating positive sport experiences for young women.

Ultraviolet radiation, vitamin D and the development of obesity, metabolic syndrome and type-2 diabetes.

PubMed

Gorman, Shelley; Lucas, Robyn M; Allen-Hall, Aidan; Fleury, Naomi; Feelisch, Martin

2017-03-16

Obesity is increasing in prevalence in many countries around the world. Its causes have been traditionally ascribed to a model where energy intake exceeds energy consumption. Reduced energy output in the form of exercise is associated with less sun exposure as many of these activities occur outdoors. This review explores the potential for ultraviolet radiation (UVR), derived from sun exposure, to affect the development of obesity and two of its metabolic co-morbidities, type-2 diabetes and metabolic syndrome. We here discuss the potential benefits (or otherwise) of exposure to UVR based on evidence from pre-clinical, human epidemiological and clinical studies and explore and compare the potential role of UVR-induced mediators, including vitamin D and nitric oxide. Overall, emerging findings suggest a protective role for UVR and sun exposure in reducing the development of obesity and cardiometabolic dysfunction, but more epidemiological and clinical research is required that focuses on measuring the direct associations and effects of exposure to UVR in humans.

The role of oxytocin in relationships between dogs and humans and potential applications for the treatment of separation anxiety in dogs.

PubMed

Thielke, Lauren E; Udell, Monique A R

2017-02-01

The hormone oxytocin plays an important role in attachment formation and bonding between humans and domestic dogs. Recent research has led to increased interest in potential applications for intranasal oxytocin to aid with the treatment of psychological disorders in humans. While a few studies have explored the effects of intranasally administered oxytocin on social cognition and social bonding in dogs, alternative applications have not yet been explored for the treatment of behavioural problems in this species. One potentially important application for intranasal oxytocin in dogs could be the treatment of separation anxiety, a common attachment disorder in dogs. Here we provide an overview of what is known about the role of oxytocin in the human-dog bond and canine separation anxiety, and discuss considerations for future research looking to integrate oxytocin into behavioural treatment based on recent findings from both the human and dog literature. © 2015 Cambridge Philosophical Society.

A Tractable Numerical Model for Exploring Nonadiabatic Quantum Dynamics

ERIC Educational Resources Information Center

Camrud, Evan; Turner, Daniel B.

2017-01-01

Numerous computational and spectroscopic studies have demonstrated the decisive role played by nonadiabatic coupling in photochemical reactions. Nonadiabatic coupling drives photochemistry when potential energy surfaces are nearly degenerate at avoided crossings or truly degenerate at unavoided crossings. The dynamics induced by nonadiabatic…

Fan

ERIC Educational Resources Information Center

Moore, M. Elizabeth

2018-01-01

This essay explores the intersections between Fandom Studies and Children's Literature, showcasing some of the ways in which "fan" as a keyword can illuminate both problems and potential solutions in children's media and education. Although children have historically been excluded from much of fan-organized fandom, the idea of…

RAINBOW LAKE WILDERNESS AND FLYNN LAKE WILDERNESS STUDY AREA, WISCONSIN.

USGS Publications Warehouse

Cannon, W.F.; Dunn, Maynard L.

1984-01-01

The Rainbow Lake Wilderness and Flynn Lake Wilderness study area in Wisconsin are contiguous and were studied as a unit. The rainbow Lake Wilderness contains a demonstrated resource of about 210,000 tons of commercial-quality peat in an area of substantiated peat resource potential. The Flynn Lake Wilderness study area contains a demonstrated resource of about 300,000 tons of commercial-quality peat in an area of substantiated peat resource potential. These deposits, however, are of limited importance because larger deposits of similar material are abundant outside the areas, closer to present markets. Rocks in the subsurface contain a low-grade copper resource identified by mining company exploration drilling. Although this is an area of substantiated copper resource potential, it is a low-grade resource, thin and generally at great depth.

The Preschool Nap as a Protective Factor in the Fight against Childhood Obesity: An Exploratory Study

ERIC Educational Resources Information Center

Kihm, Holly Spencer; Rolling, Peggy

2014-01-01

Although the prevalence of childhood obesity has not increased in recent years, it remains unacceptably high and warrants continued study. The purpose of this study was to explore the potential relationship between weight status and length of sleep (both daytime and nighttime) among preschool children. Special attention was given to the role…

The Effect of Karate Practice on Self-Esteem in Young Adults with Visual Impairment: A Case Study

ERIC Educational Resources Information Center

Qasim, Samir; Ravenscroft, John; Sproule, John

2014-01-01

Previous research has not examined the potential relationship between physical activity interventions and psychological domains of young adults with visual impairment (VI). This study aimed to investigate whether karate practice improves the self-esteem of young adults with VI. A secondary aim of this study was to explore the exercise and…

Asking Questions as a Key Strategy in Guiding a Novice Teacher: A Self-Study

ERIC Educational Resources Information Center

Olsher, Gila; Kantor, Itay-Danny

2012-01-01

This self-study explores the instruction of a novice teacher by an expert mentor teacher, while applying the strategy of asking questions instead of the more common pattern of giving advice and guidance in the form of telling. The study examines the educational potential embedded in the question-asking strategy as a key mentoring resource when…

Student-Teachers' Verbal Communication Patterns during Their Teaching Practice in "Studies for the Environment" Subject in Early Greek Primary Classes

ERIC Educational Resources Information Center

Malandrakis, George; Karagianni, Aggeliki; Pani, Dimitra

2016-01-01

This study explores the quality of student-teachers' (STs') verbal communication during their teaching practice on the "Studies for the Environment" subject, and identifies potential factors affecting it. Forty-one teaching sessions were analysed revealing that STs dominate classroom talking by having almost an equal number of utterances…

Explorations in Statistics: The Analysis of Change

ERIC Educational Resources Information Center

Curran-Everett, Douglas; Williams, Calvin L.

2015-01-01

Learning about statistics is a lot like learning about science: the learning is more meaningful if you can actively explore. This tenth installment of "Explorations in Statistics" explores the analysis of a potential change in some physiological response. As researchers, we often express absolute change as percent change so we can…

Effects of a restricted fetal growth environment on human kidney morphology, cell apoptosis and gene expression.

PubMed

Wang, Yan-Ping; Chen, Xu; Zhang, Zhi-Kun; Cui, Hong-Yan; Wang, Peng; Wang, Yue

2015-12-01

Kidney development is key to the onset of hypertension and cardiovascular diseases in adults, and in the fetal stage will be impaired by a lack of nutrients in utero in animal models. However, few human studies have been performed. Kidney samples from fetuses in a fetal growth restriction (FGR) environment were collected and the morphological characteristics were observed. Potentially molecular mechanisms were explored by analyzing apoptosis and kidney-development related gene expression. The results indicated that no malformations were observed in the kidney samples of the FGR group, but the mean kidney weight and volume were significantly decreased. Moreover, the ratio of apoptotic cells and Bax-positive cells was increased and the ratio of Bcl-2-positive cells was decreased in the FGR group, indicating potential apoptosis induction under an in utero FGR environment. Finally, aberrant expression of renin and angiotensinogen indicated potential kidney functional abnormalities in the FGR group. Our study suggested increased apoptosis and decreased renin and angiotensinogen expression during human kidney development in an FGR environment. The current results will be helpful to further explore the molecular mechanism of FGR and facilitate future studies of hypertension and cardiovascular diseases and the establishment of preventive methods. © The Author(s) 2014.

Building the Information Society in Candidate Countries? A Prospective Analysis on Potential Trajectories To Realise the Lisbon Goals. IPTS Experts Workshop Report, February 23-25, 2003, Sevilla.

ERIC Educational Resources Information Center

Bogdanowicz, Marc; Burgelman, Jean-Claude; Centeno, Clara; Gourova, Elisavetta; Carat, Gerard

Potential policies and strategies for building the information society (IS) in countries that are candidates for admission to the European Union were explored at a workshop attended by 39 experts from the European Commission (EC), the EC's Institute for Prospective and Technological Studies, and outside the EC. The workshop focused on the specific…

Mitigating Negative Externalities Affecting Access and Equity of Education in Low-Resource Countries: A Study Exploring Social Marketing as a Potential Strategy for Planning School Food Programs in Malawi

ERIC Educational Resources Information Center

Magreta-Nyongani, Martha

2012-01-01

School feeding programs enhance the efficiency of the education system by improving enrollment, reducing dropouts and increasing perseverance. They also have the potential to reach the poor, directly making them an effective social safety net. In many low-resource countries, school feeding programs are designed to protect children from the effects…

Learning and exploration in action-perception loops.

PubMed

Little, Daniel Y; Sommer, Friedrich T

2013-01-01

Discovering the structure underlying observed data is a recurring problem in machine learning with important applications in neuroscience. It is also a primary function of the brain. When data can be actively collected in the context of a closed action-perception loop, behavior becomes a critical determinant of learning efficiency. Psychologists studying exploration and curiosity in humans and animals have long argued that learning itself is a primary motivator of behavior. However, the theoretical basis of learning-driven behavior is not well understood. Previous computational studies of behavior have largely focused on the control problem of maximizing acquisition of rewards and have treated learning the structure of data as a secondary objective. Here, we study exploration in the absence of external reward feedback. Instead, we take the quality of an agent's learned internal model to be the primary objective. In a simple probabilistic framework, we derive a Bayesian estimate for the amount of information about the environment an agent can expect to receive by taking an action, a measure we term the predicted information gain (PIG). We develop exploration strategies that approximately maximize PIG. One strategy based on value-iteration consistently learns faster than previously developed reward-free exploration strategies across a diverse range of environments. Psychologists believe the evolutionary advantage of learning-driven exploration lies in the generalized utility of an accurate internal model. Consistent with this hypothesis, we demonstrate that agents which learn more efficiently during exploration are later better able to accomplish a range of goal-directed tasks. We will conclude by discussing how our work elucidates the explorative behaviors of animals and humans, its relationship to other computational models of behavior, and its potential application to experimental design, such as in closed-loop neurophysiology studies.

Abyssal fauna of the UK-1 polymetallic nodule exploration area, Clarion-Clipperton Zone, central Pacific Ocean: Cnidaria.

PubMed

Dahlgren, Thomas G; Wiklund, Helena; Rabone, Muriel; Amon, Diva J; Ikebe, Chiho; Watling, Les; Smith, Craig R; Glover, Adrian G

2016-01-01

We present data from a DNA taxonomy register of the abyssal Cnidaria collected as part of the Abyssal Baseline (ABYSSLINE) environmental survey cruise 'AB01' to the UK Seabed Resources Ltd (UKSRL) polymetallic-nodule exploration area 'UK-1' in the eastern Clarion-Clipperton Zone (CCZ), central Pacific Ocean abyssal plain. This is the second paper in a series to provide regional taxonomic data for a region that is undergoing intense deep-sea mineral exploration for high-grade polymetallic nodules. Data were collected from the UK-1 exploration area following the methods described in Glover et al. (2015b). Morphological and genetic data are presented for 10 species and 18 records identified by a combination of morphological and genetic data, including molecular phylogenetic analyses. These included 2 primnoid octocorals, 2 isidid octocorals, 1 anemone, 4 hydroids (including 2 pelagic siphonophores accidentally caught) and a scyphozoan jellyfish (in the benthic stage of the life cycle). Two taxa matched previously published genetic sequences (pelagic siphonophores), two taxa matched published morphological descriptions (abyssal primnoids described from the same locality in 2015) and the remaining 6 taxa are potentially new species, for which we make the raw data, imagery and vouchers available for future taxonomic study. We have used a precautionary approach in taxon assignments to avoid over-estimating species ranges. The Clarion-Clipperton Zone is a region undergoing intense exploration for potential deep-sea mineral extraction. We present these data to facilitate future taxonomic and environmental impact study by making both data and voucher materials available through curated and accessible biological collections. For some of the specimens we also provide image data collected at the seabed by ROV, wich may facilitate more accurate taxon designation in coming ROV or AUV surveys.

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

None

This case history discusses the exploration methods used at the Momotombo Geothermal Field in western Nicaragua, and evaluates their contributions to the development of the geothermal field models. Subsequent reservoir engineering has not been synthesized or evaluated. A geothermal exploration program was started in Nicaragua in 1966 to discover and delineate potential geothermal reservoirs in western Nicaragua. Exploration began at the Momotombo field in 1970 using geological, geochemical, and geophysical methods. A regional study of thermal manifestations was undertaken and the area on the southern flank of Volcan Momotombo was chosen for more detailed investigation. Subsequent exploration by various consultantsmore » produced a number of geotechnical reports on the geology, geophysics, and geochemistry of the field as well as describing production well drilling. Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. This report presents the description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development. Our principal finding is that data developed at each stage were not sufficiently integrated to guide further work at the field, causing inefficient use of resources.« less

Exploring the potential of a family-based prevention intervention to reduce alcohol use and violence within HIV-affected families in Rwanda.

PubMed

Chaudhury, Sumona; Brown, Felicity L; Kirk, Catherine M; Mukunzi, Sylvere; Nyirandagijimana, Beatha; Mukandanga, Josee; Ukundineza, Christian; Godfrey, Kalisa; Ng, Lauren C; Brennan, Robert T; Betancourt, Theresa S

2016-03-01

HIV-affected families report higher rates of harmful alcohol use, intimate partner violence (IPV) and family conflict, which can have detrimental effects on children. Few evidence-based interventions exist to address these complex issues in Sub-Saharan Africa. This mixed methods study explores the potential of a family-based intervention to reduce IPV, family conflict and problems related to alcohol use to promote child mental health and family functioning within HIV-affected families in post-genocide Rwanda. A family home-visiting, evidence-based intervention designed to identify and enhance resilience and communication in families to promote mental health in children was adapted and developed for use in this context for families affected by caregiver HIV in Rwanda. The intervention was adapted and developed through a series of pilot study phases prior to being tested in open and randomized controlled trials (RCTs) in Rwanda for families affected by caregiver HIV. Quantitative and qualitative data from the RCT are explored here using a mixed methods approach to integrate findings. Reductions in alcohol use and IPV among caregivers are supported by qualitative reports of improved family functioning, lower levels of violence and problem drinking as well as improved child mental health, among the intervention group. This mixed methods analysis supports the potential of family-based interventions to reduce adverse caregiver behaviors as a major mechanism for improving child well-being. Further studies to examine these mechanisms in well-powered trials are needed to extend the evidence-base on the promise of family-based intervention for use in low- and middle-income countries.

Implementation of false discovery rate for exploring novel paradigms and trait dimensions with ERPs.

PubMed

Crowley, Michael J; Wu, Jia; McCreary, Scott; Miller, Kelly; Mayes, Linda C

2012-01-01

False discovery rate (FDR) is a multiple comparison procedure that targets the expected proportion of false discoveries among the discoveries. Employing FDR methods in event-related potential (ERP) research provides an approach to explore new ERP paradigms and ERP-psychological trait/behavior relations. In Study 1, we examined neural responses to escape behavior from an aversive noise. In Study 2, we correlated a relatively unexplored trait dimension, ostracism, with neural response. In both situations we focused on the frontal cortical region, applying a channel by time plots to display statistically significant uncorrected data and FDR corrected data, controlling for multiple comparisons.

Gene Expression Profiling of Lung Tissue of Rats Exposed to Lunar Dust Particles

NASA Technical Reports Server (NTRS)

Zhang, Ye; Feiveson, Alan H.; Lam, Chiu-Wing; Kidane, Yared H.; Ploutz-Snyder Robert; Yeshitla, Samrawit; Zalesak, Selina M.; Scully, Robert R.; Wu, Honglu; James, John T.

2014-01-01

The purpose of the study is to analyze the dynamics of global gene expression changes in the lung tissue of rats exposed to lunar dust particles. Multiple pathways and transcription factors were identified using the Ingenuity Pathway Analysis tool, showing the potential networks of these signaling regulations involved in lunar dust-induced prolonged proflammatory response and toxicity. The data presented in this study, for the first time, explores the molecular mechanisms of lunar dust induced toxicity. This work contributes not only to the risk assessment for future space exploration, but also to the understanding of the dust-induced toxicity to humans on earth.

Accessible Near-Earth Objects (NEOs)

NASA Technical Reports Server (NTRS)

Barbee, Brent W.

2015-01-01

Near Earth Objects (NEOs) are asteroids and comets whose orbits are in close proximity to Earth's orbit; specifically, they have perihelia less than 1.3 astronomical units. NEOs particularly near Earth asteroids (NEAs) are identified as potential destinations for future human exploration missions. In this presentation I provide an overview of the current state of knowledge regarding the astrodynamical accessibility of NEAs according to NASA's Near Earth Object Human Space Flight Accessible Targets Study (NHATS). I also investigate the extremes of NEA accessibility using case studies and illuminate the fact that a space-based survey for NEOs is essential to expanding the set of known accessible NEAs for future human exploration missions.

An exploratory study of the potential learning benefits for medical students in collaborative drawing: creativity, reflection and ‘critical looking’

PubMed Central

2013-01-01

Background Building on a series of higher educational arts/medicine initiatives, an interdisciplinary drawing module themed on the human body was developed for both year 3 Craft students and year 3 Medicine degree students. This became the subject of a research project exploring how the collaborative approach to drawing adopted on this module impacted on the students’ learning. In this article, emphasis is given to issues thought to have most potential relevance to medical education. Methods Using an ethnographic research design, the methods adopted were: direct observation of all aspects of the module sessions, audio and video recordings and photographs of the sessions, the incorporation of a semi-structured discussion at the end of each session, and anonymous student questionnaires. Results A number of key themes emerged. The complex, phased and multi-sensory nature of the ‘critical looking’ skills developed through the drawing exercises was seen as of potential value in medical education, being proposed as analogous to processes involved in clinical examination and diagnosis. The experience of interdisciplinary collaborative drawing was significant to the students as a creative, participatory and responsive form of learning. The emphasis on the physical experience of drawing and the thematic use of the human body as drawing subject led to reflective discussions about bodily knowledge and understanding. There were indications that students had a meta-cognitive awareness of the learning shifts that had occurred and the sessions provoked constructive self-reflective explorations of pre-professional identity. Conclusions This preliminary study suggests, through the themes identified, that there may be potential learning outcomes for medical students in this model of interdisciplinary collaborative drawing of the human body. Further research is needed to explore their applicability and value to medical education. There is a need to explore in more depth the beliefs, motivations and learning styles of medical students opting for the module, the significance and weighting of different learning and teaching elements in the module and the impact of the learning on medical students in the immediate post-module phase. PMID:23773830

An exploratory study of the potential learning benefits for medical students in collaborative drawing: creativity, reflection and 'critical looking'.

PubMed

Lyon, Philippa; Letschka, Patrick; Ainsworth, Tom; Haq, Inam

2013-06-17

Building on a series of higher educational arts/medicine initiatives, an interdisciplinary drawing module themed on the human body was developed for both year 3 Craft students and year 3 Medicine degree students. This became the subject of a research project exploring how the collaborative approach to drawing adopted on this module impacted on the students' learning. In this article, emphasis is given to issues thought to have most potential relevance to medical education. Using an ethnographic research design, the methods adopted were: direct observation of all aspects of the module sessions, audio and video recordings and photographs of the sessions, the incorporation of a semi-structured discussion at the end of each session, and anonymous student questionnaires. A number of key themes emerged. The complex, phased and multi-sensory nature of the 'critical looking' skills developed through the drawing exercises was seen as of potential value in medical education, being proposed as analogous to processes involved in clinical examination and diagnosis. The experience of interdisciplinary collaborative drawing was significant to the students as a creative, participatory and responsive form of learning. The emphasis on the physical experience of drawing and the thematic use of the human body as drawing subject led to reflective discussions about bodily knowledge and understanding. There were indications that students had a meta-cognitive awareness of the learning shifts that had occurred and the sessions provoked constructive self-reflective explorations of pre-professional identity. This preliminary study suggests, through the themes identified, that there may be potential learning outcomes for medical students in this model of interdisciplinary collaborative drawing of the human body. Further research is needed to explore their applicability and value to medical education. There is a need to explore in more depth the beliefs, motivations and learning styles of medical students opting for the module, the significance and weighting of different learning and teaching elements in the module and the impact of the learning on medical students in the immediate post-module phase.

Solar Electric Propulsion Vehicle Demonstration to Support Future Space Exploration Missions

NASA Technical Reports Server (NTRS)

Smith, Bryan K.; Nazario, Margaret L.; Cunningham, Cameron C.

2012-01-01

Human and robotic exploration beyond Low Earth Orbit (LEO) will require enabling capabilities that are efficient, affordable, and reliable. Solar Electric Propulsion (SEP) is highly advantageous because of its favorable in-space mass transfer efficiency compared to traditional chemical propulsion systems. The NASA studies have demonstrated that this advantage becomes highly significant as missions progress beyond Earth orbit. Recent studies of human exploration missions and architectures evaluated the capabilities needed to perform a variety of human exploration missions including missions to Near Earth Objects (NEOs). The studies demonstrated that SEP stages have potential to be the most cost effective solution to perform beyond LEO transfers of high mass cargoes for human missions. Recognizing that these missions require power levels more than 10X greater than current electric propulsion systems, NASA embarked upon a progressive pathway to identify critical technologies needed and a plan for an incremental demonstration mission. The NASA studies identified a 30kW class demonstration mission that can serve as a meaningful demonstration of the technologies, operational challenges, and provide the appropriate scaling and modularity required. This paper describes the planning options for a representative demonstration 30kW class SEP mission.

Landsat analysis for uranium exploration in Northeast Turkey

USGS Publications Warehouse

Lee, Keenan

1983-01-01

No uranium deposits are known in the Trabzon, Turkey region, and consequently, exploration criteria have not been defined. Nonetheless, by analogy with uranium deposits studied elsewhere, exploration guides are suggested to include dense concentrations of linear features, lineaments -- especially with northwest trend, acidic plutonic rocks, and alteration indicated by limonite. A suite of digitally processed images of a single Landsat scene served as the image base for mapping 3,376 linear features. Analysis of the linear feature data yielded two statistically significant trends, which in turn defined two sets of strong lineaments. Color composite images were used to map acidic plutonic rocks and areas of surficial limonitic materials. The Landsat interpretation yielded a map of these exploration guides that may be used to evaluate relative uranium potential. One area in particular shows a high coincidence of favorable indicators.

Enabling technology for human collaboration.

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

Murphy, Tim Andrew; Jones, Wendell Bruce; Warner, David Jay

2003-11-01

This report summarizes the results of a five-month LDRD late start project which explored the potential of enabling technology to improve the performance of small groups. The purpose was to investigate and develop new methods to assist groups working in high consequence, high stress, ambiguous and time critical situations, especially those for which it is impractical to adequately train or prepare. A testbed was constructed for exploratory analysis of a small group engaged in tasks with high cognitive and communication performance requirements. The system consisted of five computer stations, four with special devices equipped to collect physiologic, somatic, audio andmore » video data. Test subjects were recruited and engaged in a cooperative video game. Each team member was provided with a sensor array for physiologic and somatic data collection while playing the video game. We explored the potential for real-time signal analysis to provide information that enables emergent and desirable group behavior and improved task performance. The data collected in this study included audio, video, game scores, physiological, somatic, keystroke, and mouse movement data. The use of self-organizing maps (SOMs) was explored to search for emergent trends in the physiological data as it correlated with the video, audio and game scores. This exploration resulted in the development of two approaches for analysis, to be used concurrently, an individual SOM and a group SOM. The individual SOM was trained using the unique data of each person, and was used to monitor the effectiveness and stress level of each member of the group. The group SOM was trained using the data of the entire group, and was used to monitor the group effectiveness and dynamics. Results suggested that both types of SOMs were required to adequately track evolutions and shifts in group effectiveness. Four subjects were used in the data collection and development of these tools. This report documents a proof of concept study, and its observations are preliminary. Its main purpose is to demonstrate the potential for the tools developed here to improve the effectiveness of groups, and to suggest possible hypotheses for future exploration.« less

The Asteroid Impact and Deflection Assessment Mission and its Potential Contributions to Human Exploration of Asteroids

NASA Technical Reports Server (NTRS)

Abell, Paul A.; Rivkin, Andy S.

2014-01-01

The joint ESA and NASA Asteroid Impact and Deflection Assessment (AIDA) mission will directly address aspects of NASA's Asteroid Initiative and will contribute to future human exploration. The NASA Asteroid Initiative is comprised of two major components: the Grand Challenge and the Asteroid Mission. The first component, the Grand Challenge, focuses on protecting Earth's population from asteroid impacts by detecting potentially hazardous objects with enough warning time to either prevent them from impacting the planet, or to implement civil defense procedures. The Asteroid Mission, involves sending astronauts to study and sample a near-Earth asteroid (NEA) prior to conducting exploration missions of the Martian system, which includes Phobos and Deimos. AIDA's primary objective is to demonstrate a kinetic impact deflection and characterize the binary NEA Didymos. The science and technical data obtained from AIDA will aid in the planning of future human exploration missions to NEAs and other small bodies. The dual robotic missions of AIDA, ESA's Asteroid Impact Monitor (AIM) and NASA's Double Asteroid Redirection Test (DART), will provide a great deal of technical and engineering data on spacecraft operations for future human space exploration while conducting in-depth scientific examinations of the binary target Didymos both prior to and after the kinetic impact demonstration. The knowledge gained from this mission will help identify asteroidal physical properties in order to maximize operational efficiency and reduce mission risk for future small body missions. The AIDA data will help fill crucial strategic knowledge gaps concerning asteroid physical characteristics that are relevant for human exploration considerations at similar small body destinations.

Banking Umbilical Cord Blood (UCB) Stem Cells: Awareness, Attitude and Expectations of Potential Donors from One of the Largest Potential Repository (India).

PubMed

Pandey, Deeksha; Kaur, Simar; Kamath, Asha

2016-01-01

The concept of Umbilical Cord blood (UCB) stem cells is emerging as a non-invasive, efficacious alternative source of hematopoietic stem cells to treat a variety of blood and bone marrow diseases, blood cancers, metabolic disorders and immune deficiencies. Aim of the present study was to determine the level of awareness about banking UCB among pregnant women in India. We also assessed patient perception for banking of UCB and explored the patient expectations of banking UCB in future. This is the first study to assess current attitudes, in a sample population of potential donors from one of the largest potential UCB repository (India). Obtaining this information may help optimize recruitment efforts and improve patient education. Present explorative questionnaire based survey included 254 pregnant women in the final analysis. We established only 26.5% pregnant women in our study population knew what exactly is meant by UCB. A large proportion (55.1%) was undecided on whether they want to bank UCB or not. Women were more aware of the more advertised private cord blood banking compared to public banking. More than half of the pregnant women expected their obstetrician to inform them regarding UCB. One-third of the women in our population had undue expectations from banking of the UCB. Obstetricians should play a more active role in explaining the patients regarding pros and cons of UCB banking.

Concept Test of a Smoking Cessation Smart Case.

PubMed

Comello, Maria Leonora G; Porter, Jeannette H

2018-04-05

Wearable/portable devices that unobtrusively detect smoking and contextual data offer the potential to provide Just-In-Time Adaptive Intervention (JITAI) support for mobile cessation programs. Little has been reported on the development of these technologies. To address this gap, we offer a case report of users' experiences with a prototype "smart" cigarette case that automatically tracks time and location of smoking. Small-scale user-experience studies are typical of iterative product design and are especially helpful when proposing novel ideas. The purpose of the study was to assess concept acceptability and potential for further development. We tested the prototype case with a small sample of potential users (n = 7). Participants used the hardware/software for 2 weeks and reconvened for a 90-min focus group to discuss experiences and provide feedback. Participants liked the smart case in principle but found the prototype too bulky for easy portability. The potential for the case to convey positive messages about self also emerged as a finding. Participants indicated willingness to pay for improved technology (USD $15-$60 on a one-time basis). The smart case is a viable concept, but design detail is critical to user acceptance. Future research should examine designs that maximize convenience and that explore the device's ability to cue intentions and other cognitions that would support cessation. This study is the first to our knowledge to report formative research on the smart case concept. This initial exploration provides insights that may be helpful to other developers of JITAI-support technology.

Banking Umbilical Cord Blood (UCB) Stem Cells: Awareness, Attitude and Expectations of Potential Donors from One of the Largest Potential Repository (India)

PubMed Central

Pandey, Deeksha

2016-01-01

Background The concept of Umbilical Cord blood (UCB) stem cells is emerging as a non-invasive, efficacious alternative source of hematopoietic stem cells to treat a variety of blood and bone marrow diseases, blood cancers, metabolic disorders and immune deficiencies. Aim of the present study was to determine the level of awareness about banking UCB among pregnant women in India. We also assessed patient perception for banking of UCB and explored the patient expectations of banking UCB in future. This is the first study to assess current attitudes, in a sample population of potential donors from one of the largest potential UCB repository (India). Obtaining this information may help optimize recruitment efforts and improve patient education. Material and Method Present explorative questionnaire based survey included 254 pregnant women in the final analysis. Results We established only 26.5% pregnant women in our study population knew what exactly is meant by UCB. A large proportion (55.1%) was undecided on whether they want to bank UCB or not. Women were more aware of the more advertised private cord blood banking compared to public banking. More than half of the pregnant women expected their obstetrician to inform them regarding UCB. One-third of the women in our population had undue expectations from banking of the UCB. Conclusion Obstetricians should play a more active role in explaining the patients regarding pros and cons of UCB banking. PMID:27228155

Exploring potential social influences on brain potentials during anticipation of tactile stimulation.

PubMed

Shen, Guannan; Saby, Joni N; Drew, Ashley R; Marshall, Peter J

2017-03-15

This study explored interpersonal influences on electrophysiological responses during the anticipation of tactile stimulation. It is well-known that broad, negative-going potentials are present in the event-related potential (ERP) between a forewarning cue and a tactile stimulus. It has also been shown that the alpha-range mu rhythm shows a lateralized desynchronization over central electrode sites during anticipation of tactile stimulation of the hand. The current study used a tactile discrimination task in which a visual cue signaled that an upcoming stimulus would either be delivered 1500ms later to the participant's hand, to a task partner's hand, or to neither person. For the condition in which participants anticipated the tactile stimulation to their own hand, a negative potential (contingent negative variation, CNV) was observed in the ERP at central sites in the 1000ms prior to the tactile stimulus. Significant mu rhythm desynchronization was also present in the same time window. The magnitudes of the ERPs and of the mu desynchronization were greater in the contralateral than in the ipsilateral hemisphere prior to right hand stimulation. Similar ERP and EEG changes were not present when the visual cue indicated that stimulation would be delivered to the task partner or to neither person. The absence of social influences during anticipation of tactile stimulation, and the relationship between the two brain signatures of anticipatory attention (CNV and mu rhythm) are discussed. Copyright © 2017 Elsevier B.V. All rights reserved.

Modeling and comparative assessment of municipal solid waste gasification for energy production

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

Arafat, Hassan A., E-mail: harafat@masdar.ac.ae; Jijakli, Kenan

Highlights: • Study developed a methodology for the evaluation of gasification for MSW treatment. • Study was conducted comparatively for USA, UAE, and Thailand. • Study applies a thermodynamic model (Gibbs free energy minimization) using the Gasify software. • The energy efficiency of the process and the compatibility with different waste streams was studied. - Abstract: Gasification is the thermochemical conversion of organic feedstocks mainly into combustible syngas (CO and H{sub 2}) along with other constituents. It has been widely used to convert coal into gaseous energy carriers but only has been recently looked at as a process for producingmore » energy from biomass. This study explores the potential of gasification for energy production and treatment of municipal solid waste (MSW). It relies on adapting the theory governing the chemistry and kinetics of the gasification process to the use of MSW as a feedstock to the process. It also relies on an equilibrium kinetics and thermodynamics solver tool (Gasify®) in the process of modeling gasification of MSW. The effect of process temperature variation on gasifying MSW was explored and the results were compared to incineration as an alternative to gasification of MSW. Also, the assessment was performed comparatively for gasification of MSW in the United Arab Emirates, USA, and Thailand, presenting a spectrum of socioeconomic settings with varying MSW compositions in order to explore the effect of MSW composition variance on the products of gasification. All in all, this study provides an insight into the potential of gasification for the treatment of MSW and as a waste to energy alternative to incineration.« less

Comparison of Students' Knowledge Structure Coherence and Understanding of Force in the Philippines, Turkey, China, Mexico, and the United States

ERIC Educational Resources Information Center

Clark, Douglas B.; D'Angelo, Cynthia M.; Schleigh, Sharon P.

2011-01-01

This study investigates the ongoing debate in the conceptual change literature between unitary and elemental perspectives on students' knowledge structure coherence. More specifically, the current study explores two potential explanations for the conflicting results reported by Ioannides and Vosniadou (2002)and diSessa, Gillespie, and Esterly…

The Role of Emotional Factors in Building Public Scientific Literacy and Engagement with Science

ERIC Educational Resources Information Center

Lin, Huann-shyang; Hong, Zuway-R.; Huang, Tai-Chu

2012-01-01

This study uses the database from an extensive international study on 15-year-old students (N = 8,815) to analyze the relationship between emotional factors and students' scientific literacy and explore the potential link between the emotions of the students and subsequent public engagement with science. The results revealed that students'…

Mobile Eye Tracking Methodology in Informal E-Learning in Social Groups in Technology-Enhanced Science Centres

ERIC Educational Resources Information Center

Magnussen, Rikke; Zachariassen, Maria; Kharlamov, Nikita; Larsen, Birger

2017-01-01

This paper presents a methodological discussion of the potential and challenges of involving mobile eye tracking technology in studies of knowledge generation and learning in a science centre context. The methodological exploration is based on eye-tracking studies of audience interaction and knowledge generation in the technology-enhanced health…

Re-Examining the Relationship between Need for Cognition and Creativity: Predicting Creative Problem Solving across Multiple Domains

ERIC Educational Resources Information Center

Watts, Logan L.; Steele, Logan M.; Song, Hairong

2017-01-01

Prior studies have demonstrated inconsistent findings with regard to the relationship between need for cognition and creativity. In our study, measurement issues were explored as a potential source of these inconsistencies. Structural equation modeling techniques were used to examine the factor structure underlying the 18-item need for cognition…

Problem-Based Educational Environments: A Case Study in e-Commerce and Business Planning

ERIC Educational Resources Information Center

Megalakaki, Olga; Sotiriou, Sofoklis; Savas, Stavros; Manoussakis, Yannis

2012-01-01

Introduction: The purpose of the present study was to explore the educational and cognitive aspects of an innovative approach to Internet use within an interdisciplinary, integrated framework for activities set up to enable students to acquire knowledge informally. These activities had the potential to provide real-world results through a model…

Exploring the Potential for Language Supportive Learning in English Medium Instruction: A Rwandan Case Study

ERIC Educational Resources Information Center

Milligan, Lizzi O.; Clegg, John; Tikly, Leon

2016-01-01

This article puts forward the argument for language supportive learning for learners in English medium instruction (EMI) classrooms based on the findings from a mixed methods study in Rwanda. The article first reviews the relevant literature and research which looks at the concept of language support, focusing on textbooks and pedagogy in…

Lagos "Area Boys", Substance Usage and Potential Risk Factors

ERIC Educational Resources Information Center

Salaam, Abeeb Olufemi; Brown, Jennifer

2012-01-01

The current study explores the rate at which members of Lagos' "area boys" engage in drug and alcohol use, and determines the predictive roles of parental and neighbourhood characteristics in the gang patterns of psychoactive substance misuse behaviour. The study approached gang members (N = 129) aged from 18 to 38 years (M = 25.83, SD = 4.82)…

The Game Embedded CALL System to Facilitate English Vocabulary Acquisition and Pronunciation

ERIC Educational Resources Information Center

Young, Shelley Shwu-Ching; Wang, Yi-Hsuan

2014-01-01

The aim of this study is to make a new attempt to explore the potential of integrating game strategies with automatic speech recognition technologies to provide learners with individual opportunities for English pronunciation learning. The study developed the Game Embedded CALL (GeCALL) system with two activities for on-line speaking practice. For…

Action Research for Improving the Effectiveness of Technology Integration in Preservice Teacher Education

ERIC Educational Resources Information Center

Kuo, Nai-Cheng

2015-01-01

This study aims at exploring how the Technological Pedagogical and Content Knowledge (TPACK) framework can be used to improve the effectiveness of integrating IDEA '04 and Research for Inclusive Settings (IRIS) modules in preservice teacher education. The purposes of this study were to maximize the potential of TPACK at the college and university…

Learning Management Systems in Traditional Face-to-Face Courses: A Narrative Inquiry Study

ERIC Educational Resources Information Center

Washington, Gloria

2017-01-01

The purpose of the qualitative narrative inquiry study was to explore accounts of individual higher education instructors' experiences utilizing LMSs as a potential platform for teaching and learning in the traditional face-to-face classroom environment. The pedagogical use of LMSs in traditional face-to-face courses from real life experiences of…

Potentialities beyond Deficit Perspectives: Globalization, Culture and Urban Science Education in the Bronx

ERIC Educational Resources Information Center

Pitts, Wesley

2011-01-01

The major focus of this ethnographic study is devoted to exploring the confluence of global and local referents of science education in the context of an urban chemistry laboratory classroom taught by a first-generation Filipino-American male teacher. This study investigates encounters between the teacher and four second-generation immigrant…

Recognizing Talent: Cross-Case Study of Two High Potential Students with Cerebral Palsy. Collaborative Research Study 94308.

ERIC Educational Resources Information Center

Willard-Holt, Colleen

Qualitative cross-case methodology was employed to explore the experiences of two gifted students with cerebral palsy. The following questions were investigated: (1) In what ways do these students show their intellectual abilities? and (2) What instructional strategies or techniques were especially beneficial in developing these abilities? One…

Maternal Experiences of Childhood Abuse and Intimate Partner Violence: Psychopathology and Functional Impairment in Clinical Children and Adolescents

ERIC Educational Resources Information Center

Miranda, Jenniffer K.; de la Osa, Nuria; Granero, Roser; Ezpeleta, Lourdes

2011-01-01

Objectives: The current study examined the independent effects of mothers' childhood abuse (CA) and intimate partner violence (IPV) on psychopathology and functional impairment in children; and the potential moderating and mediating role of individual and family factors in these relationships. Additionally, this study explored the potential…

Windows into Classrooms: Using ICT to Facilitate Regional, Rural and Remote Practicum and Teacher Professional Learning

ERIC Educational Resources Information Center

Romeo, Geoff; Gronn, Donna; McNamara, Sue; Teo, Yiong Hwee

2012-01-01

The purpose of this study was to field-test several conferencing technologies in regional schools in Victoria to determine whether the technologies are appropriate for the needs of the university supervisor, trainee teachers and supervising teachers with regard to practicum placements. The study also explored the potential of technology for other…

Turkish Teachers' Awareness and Perceptions of Open Educational Resources

ERIC Educational Resources Information Center

Ozdemir, Ozgur; Bonk, Curtis J.

2017-01-01

The purpose of this study is to explore K-12 teachers' awareness of open educational resources (OER) as well as their perceptions of its potential opportunities and challenges for teaching practices. Data were gathered from 99 online survey respondents and six interviewees in this study. Findings showed that teachers are aware of OER to a certain…

The Grades That Clinical Teachers Give Students Modifies the Grades They Receive

ERIC Educational Resources Information Center

Paget, Michael; Brar, Gurbir; Veale, Pamela; Busche, Kevin; Coderre, Sylvain; Woloschuk, Wayne; McLaughlin, Kevin

2018-01-01

Prior studies have shown a correlation between the grades students receive and how they rate their teacher in the classroom. In this study, the authors probe this association on clinical rotations and explore potential mechanisms. All In-Training Evaluation Reports (ITERs) for students on mandatory clerkship rotations from April 1, 2013 to January…

Teacher-Child Interactions and the Development of Executive Function in Preschool-Age Children Attending Head Start

ERIC Educational Resources Information Center

Choi, Ji Young; Castle, Sherri; Williamson, Amy C.; Young, Emisha; Worley, Lauren; Long, Melissa; Horm, Diane M.

2016-01-01

Research Findings: The purpose of this study was to examine the potential contribution of teacher-child interactions to residualized Inhibitory Control (IC) gains over approximately a six-month period for preschoolers from predominantly low-income households. The study also explored whether the association between quality of teacher-child…

Academic Motivation and Self-Regulation: A Comparative Analysis of Undergraduate and Graduate Students Learning Online

ERIC Educational Resources Information Center

Artino, Anthony R., Jr.; Stephens, Jason M.

2009-01-01

To succeed in autonomous online learning environments, it helps to be a highly motivated, self-regulated learner. The present study explored potential differences between undergraduate (n = 87) and graduate students (n = 107) in their levels of academic motivation and self-regulation while learning online. In particular, this study provides a…

A Qualitative Study of Immigration Policy and Practice Dilemmas for Social Work Students

ERIC Educational Resources Information Center

Furman, Rich; Langer, Carol L.; Sanchez, Thomas Wayne; Negi, Nalini Junko

2007-01-01

Social policy shapes the infrastructure wherein social work is practiced. However, what happens when a particular social policy is seemingly incongruent with the social work code of ethics? How do social work students conceive and resolve potential practice dilemmas that may arise as a consequence? In this study, the authors explored potential…

Fathers' Participation in Family Work: Consequences for Fathers' Stress and Father-Child Relations.

ERIC Educational Resources Information Center

Almeida, David M.; Galambos, Nancy L.

Potential costs and benefits associated with fathers' participation in household chores and child care, here called "family work," were explored in this study. More specifically, the extent to which fathers' participation in family work was related to fathers' experience of stress and father-child reations were examined. The study involved 91…

Dimension Yields from Factory Grade 2 and 3 Red Oak Logs

Treesearch

Wenjie Lin; D. Earl Kline; Philip A. Araman

1995-01-01

With rising timber costs and a decreasing supply of high-grade timber resources, manufacturers of solid wood products need to adopt more efficient processing methods that better utilize existing timber resources. To address this need, this study explores the potential of converting hardwood logs directly into dimension parts. The specific objective of this study was to...

ICT Integration in the Classroom: Challenging the Potential of a School Policy

ERIC Educational Resources Information Center

Tondeur, Jo; van Keer, Hilde; van Braak, Johan; Valcke, Martin

2008-01-01

Despite the assumption that the integration of ICT influences the entire school system, research focusing on ICT in schools is generally limited to the study of variables at class level. In contrast to these studies, the present research explores ICT integration from a school improvement approach. More particularly, it examines the local school…

Technology's Effect on Achievement in Higher Education: A Stage I Meta-Analysis of Classroom Applications

ERIC Educational Resources Information Center

Schmid, Richard F.; Bernard, Robert M.; Borokhovski, Eugene; Tamim, Rana; Abrami, Philip C.; Wade, C. Anne; Surkes, Michael A.; Lowerison, Gretchen

2009-01-01

This paper reports the findings of a Stage I meta-analysis exploring the achievement effects of computer-based technology use in higher education classrooms (non-distance education). An extensive literature search revealed more than 6,000 potentially relevant primary empirical studies. Analysis of a representative sample of 231 studies (k = 310)…

The Operator Construct of Rational Numbers in Childhood and Adolescence--An Exploratory Study

ERIC Educational Resources Information Center

Kieren, T. E.; Nelson, D.

1978-01-01

Based on a theory of rational numbers which sees the rational numbers construct of a person as potentially built on a number of subconstructs, this study explored the view of rational numbers as operators. Significant changes in performance level and quality appeared between ages 11 and 12 and 12 and 13. (JC)

The effectiveness of communication-skills training interventions in end-of-life noncancer care in acute hospital-based services: A systematic review.

PubMed

Lord, Laura; Clark-Carter, David; Grove, Amy

2016-08-01

A systematic review was conducted in order to explore the effectiveness of communication-skills training interventions in end-of-life care with noncancer acute-based healthcare staff. Articles were included if they (1) focused on communication-skills training in end-of-life/palliative care for noncancer acute-based staff and (2) reported an outcome related to behavior change with regard to communication. Sixteen online databases were searched, which resulted in 4,038 potential articles. Screening of titles left 393 articles that met the inclusion criteria. Abstracts (n = 346) and full-text articles (n = 47) were reviewed, leaving 10 papers that met the criteria for our review. All articles explored the effect of communication-skills training on aspects of staff behavior; one study measured the effect on self-efficacy, another explored the impact on knowledge and competence, and another measured comfort levels in discussing the end of life with patients/families. Seven studies measured a number of outcomes, including confidence, attitude, preparedness, stress, and communication skills. Few studies have focused on end-of-life communication-skills training in noncancer acute-based services. Those that do have report positive effects on staff behavior with regard to communication about the end of life with patients and families. The studies varied in terms of the population studied and the health services involved, and they scored only moderately or weakly on quality. It is a challenge to draw a definite conclusion about the effectiveness of training interventions in end-of-life communication because of this. However, the findings from our review demonstrate the potential effectiveness of a range of training interventions with healthcare professionals on confidence, attitude, self-efficacy, and communication skills. Further research is needed to fully explore the effectiveness of existing training interventions in this population, and evidence using objective measures is particularly needed. Ideally, randomized controlled trials or studies using control groups and longer follow-ups are needed to test the effectiveness of interventions.

Oil in the Sahara: mapping anthropogenic threats to Saharan biodiversity from space.

PubMed

Duncan, Clare; Kretz, Daniela; Wegmann, Martin; Rabeil, Thomas; Pettorelli, Nathalie

2014-01-01

Deserts are among the most poorly monitored and understood biomes in the world, with evidence suggesting that their biodiversity is declining fast. Oil exploration and exploitation can constitute an important threat to fragmented and remnant desert biodiversity, yet little is known about where and how intensively such developments are taking place. This lack of information hinders local efforts to adequately buffer and protect desert wildlife against encroachment from anthropogenic activity. Here, we investigate the use of freely available satellite imagery for the detection of features associated with oil exploration in the African Sahelo-Saharan region. We demonstrate how texture analyses combined with Landsat data can be employed to detect ground-validated exploration sites in Algeria and Niger. Our results show that site detection via supervised image classification and prediction is generally accurate. One surprising outcome of our analyses is the relatively high level of site omission errors in Niger (43%), which appears to be due to non-detection of potentially small-scale, temporary exploration activity: we believe the repeated implementation of our framework could reduce the severity of potential methodological limitations. Overall, our study provides a methodological basis for the mapping of anthropogenic threats associated with oil exploitation that can be conducted across desert regions.

Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico

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

Albrecht, Michael

2015-06-28

Surface exploration methods like geological mapping, mineralogical analysis, hydrogeochemistry, magnetotelluric as well as seismic, have been used to analyze the study area and identify a location for a production size exploration well. After that location has been identified in a blind resource scenario, a 5,657 feet deep deviated production size exploration well has been drilled. The surface casing is 13 3/8 inch with open hole starting at 4,136 feet. The well has been designed to be deepened up to 8,000 feet if needed. The first 4,180 feet have been sufficiently analyzed and were considered only of direct use interest priormore » to drilling. That has been confirmed. The remaining depth couldn't be logged by the time the report has been submitted because the well had an obstruction at 4,180 feet. Currently the power production potential for the drilling location cannot be determined without additional work-over of the well. The seismic conducted prior to drilling was a 100% success, providing a clear image of the subsurface and allowing for geosteering to be fact based and on target. Once the obstruction has been removed, work can continue to determine the power generation potential at that location.« less

Oil in the Sahara: mapping anthropogenic threats to Saharan biodiversity from space

PubMed Central

Duncan, Clare; Kretz, Daniela; Wegmann, Martin; Rabeil, Thomas; Pettorelli, Nathalie

2014-01-01

Deserts are among the most poorly monitored and understood biomes in the world, with evidence suggesting that their biodiversity is declining fast. Oil exploration and exploitation can constitute an important threat to fragmented and remnant desert biodiversity, yet little is known about where and how intensively such developments are taking place. This lack of information hinders local efforts to adequately buffer and protect desert wildlife against encroachment from anthropogenic activity. Here, we investigate the use of freely available satellite imagery for the detection of features associated with oil exploration in the African Sahelo-Saharan region. We demonstrate how texture analyses combined with Landsat data can be employed to detect ground-validated exploration sites in Algeria and Niger. Our results show that site detection via supervised image classification and prediction is generally accurate. One surprising outcome of our analyses is the relatively high level of site omission errors in Niger (43%), which appears to be due to non-detection of potentially small-scale, temporary exploration activity: we believe the repeated implementation of our framework could reduce the severity of potential methodological limitations. Overall, our study provides a methodological basis for the mapping of anthropogenic threats associated with oil exploitation that can be conducted across desert regions. PMID:24733946

An Overview of Wind-Driven Rovers for Planetary Exploration

NASA Technical Reports Server (NTRS)

Hajos, Gregory A.; Jones, Jack A.; Behar, Alberto; Dodd, Micheal

2005-01-01

The use of in-situ propulsion is considered enabling technology for long duration planetary surface missions. Most studies have focused on stored energy from chemicals extracted from the soil or the use of soil chemicals to produce photovoltaic arrays. An older form of in-situ propulsion is the use of wind power. Recent studies have shown potential for wind driven craft for exploration of Mars, Titan and Venus. The power of the wind, used for centuries to power wind mills and sailing ships, is now being applied to modern land craft. Efforts are now underway to use the wind to push exploration vehicles on other planets and moons in extended survey missions. Tumbleweed rovers are emerging as a new type of wind-driven science platform concept. Recent investigations by the National Aeronautics and Space Administration (NASA) and Jet Propulsion Laboratory (JPL) indicate that these light-weight, mostly spherical or quasi-spherical devices have potential for long distance surface exploration missions. As a power boat has unique capabilities, but relies on stored energy (fuel) to move the vessel, the Tumbleweed, like the sailing ships of the early explorers on earth, uses an unlimited resource the wind to move around the surface of Mars. This has the potential to reduce the major mass drivers of robotic rovers as well as the power generation and storage systems. Jacques Blamont of JPL and the University of Paris conceived the first documented Mars wind-blown ball in 1977, shortly after the Viking landers discovered that Mars has a thin CO2 atmosphere with relatively strong winds. In 1995, Jack Jones, et al, of JPL conceived of a large wind-blown inflated ball for Mars that could also be driven and steered by means of a motorized mass hanging beneath the rolling axis of the ball. A team at NASA Langley Research Center started a biomimetic Tumbleweed design study in 1998. Wind tunnel and CFD analysis were applied to a variety of concepts to optimize the aerodynamic characteristics of the Tumbleweed Rovers. Bare structures, structures carrying sails and a tumbleweed plant (of the Salsola genus) were tested in Langley's wind tunnels. Thomas Estier of the Swiss Federal Institute of Technology developed a memory metal collapsible structure, the Windball. Numerous other researchers have also suggested spherical rovers.

College Students' Motivations for Using Podcasts

ERIC Educational Resources Information Center

Chung, Mun-Young; Kim, Hyang-Sook

2015-01-01

Despite potential benefits of podcasts for college education, little research has examined students' psychological drives for using podcasts. To explore the relationship between the use of podcasts and college students' appreciation of them, this study investigated students' motivations, attitudes and behaviors with regard to podcasts use…

LED roadway lighting, volume 2 : field evaluations and software comparisons.

DOT National Transportation Integrated Search

2012-10-01

The use of light-emitting diodes (LEDs) for roadway lighting can potentially save energy costs and reduce the frequency of maintenance. The objective of this study is to explore the current state of the art in LED roadway lighting technology. Three s...

Relational Aggression and Victimization in College Students

ERIC Educational Resources Information Center

Dahlen, Eric R.; Czar, Katherine A.; Prather, Emily; Dyess, Christy

2013-01-01

For this study we explored relational aggression and victimization in a college sample (N = 307), examining potential gender and race differences, correlates, and the link between relational aggression and common emotional and behavioral problems, independent of relational victimization. Gender and race differences were observed on relational…

North American Waterfowl Distributions: Analyzing Long-Term Stability and Case Studies Exploring Potential Drivers of Change

EPA Science Inventory

Knowledge about how species distributions shift through time increases basic ecological understanding, improves species management and conservation, and allows for enhanced predictions about the future. This type of research is difficult to conduct, especially for migratory wate...

The Role of Prosodic Sensitivity in Children's Reading Development

ERIC Educational Resources Information Center

Whalley, Karen; Hansen, Julie

2006-01-01

While the critical importance of phonological awareness (segmental phonology) to reading ability is well established, the potential role of prosody (suprasegmental phonology) in reading development has only recently been explored. This study examined the relationship between children's prosodic skills and reading ability. Hierarchical multiple…

The National Parks of Massachusetts: Planning Studies for a Traveler Information System and Visitor Transportation Facilities

DOT National Transportation Integrated Search

2003-08-01

This report provides an analysis of new ways to facilitate visitation to the National Parks of Massachusetts through improved provision of traveler information. The report explores potential improvements to several elements of the region's Traveler I...

Interdisciplinary Entrepreneurial Leadership Education and the Development of Agricultural Innovators

ERIC Educational Resources Information Center

Mars, Matthew M.

2015-01-01

This article qualitatively explores the potential of entrepreneurial leadership curricula to encourage interdisciplinary interest in agricultural issues and prompt diverse student engagement in agricultural leadership and innovation. The study focuses specifically on the activities and perspectives of 15 undergraduate students who completed an…

Administrator Perspectives of Post-Secondary Educational Opportunities for Michigan High School Students

ERIC Educational Resources Information Center

Wozniak, Carl

2010-01-01

Administrator perspectives regarding current and potential increased participation in post-secondary educational opportunities by Michigan high school students were explored in this descriptive quantitative study. Targeted concerns included current institutional levels of involvement, personal knowledge concerning program rules and regulations,…

Urban Adolescent Stress and Hopelessness

ERIC Educational Resources Information Center

Landis, Dana; Gaylord-Harden, Noni K.; Malinowski, Sara L.; Grant, Kathryn E.; Carleton, Russell A.; Ford, Rebecca E.

2007-01-01

This study sought to explore potential mechanisms through which uncontrollable, chronic stressors may lead to hopelessness in low-income, urban adolescents. In particular, the roles of specific coping strategies as moderators and/or mediators of the association between stressors and hopelessness were examined. Results suggest that chronic,…

Child Care in Scandinavia: An Informal Report.

ERIC Educational Resources Information Center

Hechinger, Grace; Hechinger, Fred M.

1990-01-01

Reports on a study of the way children are provided for in Scandinavia and explores those aspects of the child-care system which are potentially adaptable to American needs. Topics include prenatal and health care, parental leave, home child care, and the cost of education. (IAH)

Upper Paleozoic Marine Shale Characteristics and Exploration Prospects in the Northwestern Guizhong Depression, South China

NASA Astrophysics Data System (ADS)

Zhu, Zhenhong; Yao, Genshun; Lou, Zhanghua; Jin, Aimin; Zhu, Rong; Jin, Chong; Chen, Chao

2018-05-01

Multiple sets of organic-rich shales developed in the Upper Paleozoic of the northwestern Guizhong Depression in South China. However, the exploration of these shales is presently at a relatively immature stage. The Upper Paleozoic shales in the northwestern Guizhong Depression, including the Middle Devonian Luofu shale, the Nabiao shale, and the Lower Carboniferous Yanguan shale, were investigated in this study. Mineral composition analysis, organic matter analysis (including total organic carbon (TOC) content, maceral of kerogen and the vitrinite reflection (Ro)), pore characteristic analysis (including porosity and permeability, pore type identification by SEM, and pore size distribution by nitrogen sorption), methane isothermal sorption test were conducted, and the distribution and thickness of the shales were determined, Then the characteristics of the two target shales were illustrated and compared. The results show that the Upper Paleozoic shales have favorable organic matter conditions (mainly moderate to high TOC content, type I and II1 kerogen and high to over maturity), good fracability potential (brittleness index (BI) > 40%), multiple pore types, stable distribution and effective thickness, and good methane sorption capacity. Therefore, the Upper Paleozoic shales in the northern Guizhong Depression have good shale gas potential and exploration prospects. Moreover, the average TOC content, average BI, thickness of the organic-rich shale (TOC > 2.0 wt%) and the shale gas resources of the Middle Devonian shales are better than those of the Lower Carboniferous shale. The Middle Devonian shales have better shale gas potential and exploration prospects than the Lower Carboniferous shales.

Exploring the use of tablet PCs in veterinary medical education: opportunity or obstacle?

PubMed

Wang, Hong; Rush, Bonnie R; Wilkerson, Melinda; van der Merwe, Deon

2014-01-01

A tablet PC is a laptop computer with a touch screen and a digital pen or stylus that can be used for handwritten notes and drawings. The use of tablet PCs has been investigated in many disciplines such as engineering, mathematics, science, and education. The purpose of this article is to explore student and faculty attitudes toward and experiences with tablet PCs 6 years after the implementation of a tablet PC program in the College of Veterinary Medicine (CVM) at Kansas State University (K-State). This study reports that the use of tablet PCs has enhanced students' learning experiences through learner-interface interaction, learner-content interaction, learner-instructor interaction, and learner-learner interaction. This study also identifies digital distraction as the major negative experience with tablet PCs during class time. The tablet PC program provides CVM faculty the potential to pursue technology integration strategies that support expected learning outcomes and provides students the potential to develop self-monitoring and self-discipline skills that support learning with digital technologies.

Low Cardiorespiratory Fitness in African Americans: A Health Disparity Risk Factor?

PubMed Central

Swift, Damon L.; Staiano, Amanda E.; Johannsen, Neil M.; Lavie, Carl J.; Earnest, Conrad P.; Katzmarzyk, Peter T.; Blair, Steven N.; Newton, Robert L.; Church, Timothy S.

2013-01-01

Low cardiorespiratory fitness (CRF) is a well-established risk factor for all-cause and cardiovascular disease mortality. African Americans have higher rates of cardiovascular disease compared to their Caucasian counterparts. However, the extent to which lower CRF levels contribute to the excess risk in African Americans has not been fully explored. The purpose of this review is to: 1) explore the literature evaluating the relationship between CRF and mortality specifically in African American populations; and 2) critically evaluate the studies which have compared CRF between African American and Caucasians in epidemiological studies and clinical trials. We have further discussed several potential mechanisms that may contribute to the observation of lower CRF levels in African American compared to Caucasian adults including potential racial differences in physical activity levels, muscle fiber type distribution, and hemoglobin levels. If lower CRF is generally present in African Americans compared to Caucasians, and is of a clinically meaningful difference, this may represent an important public health concern. PMID:23982718

Exploring Peer Support Needs of Caregivers for Youth with Mental Illness or Addictions Concerns in Family Navigation Services.

PubMed

Markoulakis, R; Turner, M; Wicik, K; Weingust, S; Dobbin, K; Levitt, A

2017-11-16

Roles for peer support workers are increasingly recognized as a valuable component of mental health and addictions (MHA) services. In youth MHA care, caregivers are often closely involved in finding and accessing services and may also require support for themselves, yet caregiver peer support is not readily available in existing service delivery models. In order to understand the potential role and value of a caregiver peer support worker in a Family Navigation service, a descriptive qualitative study was conducted to explore the needs and potential value of a peer worker from caregiver client perspectives. Study findings indicate that a caregiver peer support worker can provide support for engaging in the caregiving role, utilize lived experience as a skill, and complement navigation support through lived experience. The discussion highlights implications for the implementation of a caregiver peer role at a family-focused service as well as implications for peer work within the MHA system.

Anger and health in dementia caregivers: exploring the mediation effect of optimism.

PubMed

López, J; Romero-Moreno, R; Márquez-González, M; Losada, A

2015-04-01

Although previous studies indicate a negative association between caregivers' anger and health, the potential mechanisms linking this relationship are not yet fully understood. The aim of this study was to explore the potential mediating role of optimism in the relationship between anger and caregivers' physical health. Dementia caregivers (n = 108) were interviewed and filled out instruments assessing their anger (reaction), optimism and health (vitality). A mediational model was tested to determine whether optimism partially mediated the relationship between anger and vitality. Angry reaction was negatively associated with optimism and vitality; optimism was positively associated with vitality. Finally, the relationship between angry reaction and vitality decreased when optimism was entered simultaneously. A non-parametric bootstrap approach confirmed that optimism significantly mediated some of the relationship between angry reaction and vitality. These findings suggest that low optimism may help explain the association between caregivers' anger and reduced sense of vitality. The results provide a specific target for intervention with caregivers. Copyright © 2013 John Wiley & Sons, Ltd.

Data encoding based on the shape of the ferroelectric domains produced by a scanning probe microscopy tip

DOE PAGES

Ievlev, Anton; Kalinin, Sergei V.

2015-05-28

Ferroelectric materials are broadly considered for information storage due to extremely high storage and information processing densities they enable. To date, ferroelectric based data storage has invariably relied on formation of cylindrical domains, allowing for binary information encoding. Here we demonstrate and explore the potential of high-density encoding based on domain morphology. We explore the domain morphogenesis during the tip-induced polarization switching by sequences of positive and negative pulses in a lithium niobate single-crystal and demonstrate the principal of information coding by shape and size of the domains. We applied cross-correlation and neural network approaches for recognition of the switchingmore » sequence by the shape of the resulting domains and establish optimal parameters for domain shape recognition. These studies both provide insight into the highly non-trivial mechanism of domain switching and potentially establish a new paradigm for multilevel information storage and content retrieval memories. Furthermore, this approach opens a pathway to exploration of domain switching mechanisms via shape analysis.« less

Logistics Needs for Potential Deep Space Mission Scenarios Post Asteroid Crewed Mission

NASA Technical Reports Server (NTRS)

Lopez, Pedro, Jr.

2015-01-01

A deep-space mission has been proposed to identify and redirect an asteroid to a distant retrograde orbit around the moon, and explore it by sending a crew using the Space Launch System and the Orion spacecraft. The Asteroid Redirect Crewed Mission (ARCM), which represents the third segment of the Asteroid Redirect Mission (ARM), could be performed on EM-3 or EM-4 depending on asteroid return date. Recent NASA studies have raised questions on how we could progress from current Human Space Flight (HSF) efforts to longer term human exploration of Mars. This paper will describe the benefits of execution of the ARM as the initial stepping stone towards Mars exploration, and how the capabilities required to send humans to Mars could be built upon those developed for the asteroid mission. A series of potential interim missions aimed at developing such capabilities will be described, and the feasibility of such mission manifest will be discussed. Options for the asteroid crewed mission will also be addressed, including crew size and mission duration.

Review of NASA's Planned Mars Program

NASA Technical Reports Server (NTRS)

1996-01-01

Contents include the following: Executive Summary; Introduction; Scientific Goals for the Exploration of Mars; Overview of Mars Surveyor and Others Mars Missions; Key Issues for NASA's Mars Exploration Program; and Assessment of the Scientific Potential of NASA's Mars Exploration Program.

Exploration of the solar system

NASA Technical Reports Server (NTRS)

Henderson, A., Jr.; Grey, J.

1974-01-01

A sourcebook of information on the solar system and the technology used for its exploration is presented. An outline of the potential achievements of solar system exploration is given along with a course of action which maximizes the rewards to mankind.

Magnetotelluric Studies for Hydrocarbon and Geothermal Resources: Examples from the Asian Region

NASA Astrophysics Data System (ADS)

Patro, Prasanta K.

2017-09-01

Magnetotellurics (MT) and the other related electrical and electromagnetic methods play a very useful role in resource exploration. This review paper presents the current scenario of application of MT in the exploration for hydrocarbons and geothermal resources in Asia. While seismics is the most preferred method in oil exploration, it is, however, beset with several limitations in the case of sedimentary targets overlain by basalts or evaporate/carbonate rocks where the high-velocity layers overlying the lower velocity layers pose a problem. In such cases, MT plays an important and, in some cases, a crucial role in mapping these potential reservoirs because of significant resistivity contrast generally observed between the basalts and the underlying sedimentary layers. A few case histories are presented that typically illustrate the role of MT in this context. In the case of geothermal exploration, MT is known to be highly effective in deciphering the target areas because of the conductivity structures arising from the presence and circulation of highly conductive fluids in the geothermal target areas. A few examples of MT studies carried out in some of the potential areas of geothermal significance in the Asian region are also discussed. While it is a relatively favorable situation for application of EM and MT methods in the case of exploration of the high-enthalpy region due to the development of well-defined conceptual models, still the low-enthalpy regions need to be understood well, particularly because of more complex structural patterns and the fluid circulation under relatively low-temperature conditions. Currently, a lot of modeling in both geothermal and hydrocarbon exploration is being done using three-dimensional techniques, and it is the right time to go for integration and three-dimensional joint inversion of the geophysical parameters such as resistivity, velocity, density, from MT, electromagnetics (EM), seismics and gravity.

Trades Between Opposition and Conjunction Class Trajectories for Early Human Missions to Mars

NASA Technical Reports Server (NTRS)

Mattfeld, Bryan; Stromgren, Chel; Shyface, Hilary; Komar, David R.; Cirillo, William; Goodliff, Kandyce

2014-01-01

Candidate human missions to Mars, including NASA's Design Reference Architecture 5.0, have focused on conjunction-class missions with long crewed durations and minimum energy trajectories to reduce total propellant requirements and total launch mass. However, in order to progressively reduce risk and gain experience in interplanetary mission operations, it may be desirable that initial human missions to Mars, whether to the surface or to Mars orbit, have shorter total crewed durations and minimal stay times at the destination. Opposition-class missions require larger total energy requirements relative to conjunction-class missions but offer the potential for much shorter mission durations, potentially reducing risk and overall systems performance requirements. This paper will present a detailed comparison of conjunction-class and opposition-class human missions to Mars vicinity with a focus on how such missions could be integrated into the initial phases of a Mars exploration campaign. The paper will present the results of a trade study that integrates trajectory/propellant analysis, element design, logistics and sparing analysis, and risk assessment to produce a comprehensive comparison of opposition and conjunction exploration mission constructs. Included in the trade study is an assessment of the risk to the crew and the trade offs between the mission duration and element, logistics, and spares mass. The analysis of the mission trade space was conducted using four simulation and analysis tools developed by NASA. Trajectory analyses for Mars destination missions were conducted using VISITOR (Versatile ImpulSive Interplanetary Trajectory OptimizeR), an in-house tool developed by NASA Langley Research Center. Architecture elements were evaluated using EXploration Architecture Model for IN-space and Earth-to-orbit (EXAMINE), a parametric modeling tool that generates exploration architectures through an integrated systems model. Logistics analysis was conducted using NASA's Human Exploration Logistics Model (HELM), and sparing allocation predictions were generated via the Exploration Maintainability Analysis Tool (EMAT), which is a probabilistic simulation engine that evaluates trades in spacecraft reliability and sparing requirements based on spacecraft system maintainability and reparability.

Planetary Protection Issues in the Human Exploration of Mars

NASA Technical Reports Server (NTRS)

Criswell, Marvin E.; Race, M. S.; Rummel, J. D.; Baker, A.

2005-01-01

This workshop report, long delayed, is the first 21st century contribution to what will likely be a series of reports examining the effects of human exploration on the overall scientific study of Mars. The considerations of human-associated microbial contamination were last studied in a 1990 workshop ("Planetary Protection Issues and Future Mars Missions," NASA CP-10086, 1991), but the timing of that workshop allowed neither a careful examination of the full range of issues, nor an appreciation for the Mars that has been revealed by the Mars Global Surveyor and Mars Pathfinder missions. Future workshops will also have the advantage of Mars Odyssey, the Mars Exploration Rover missions, and ESA's Mars Express, but the Pingree Park workshop reported here had both the NCR's (1992) concern that "Missions carrying humans to Mars will contaminate the planet" and over a decade of careful study of human exploration objectives to guide them and to reconcile. A daunting challenge, and one that is not going to be simple (as the working title of this meeting, "When Ecologies Collide?" might suggest), it is clear that the planetary protection issues will have to be addressed to enable human explorers to safely and competently extend out knowledge about Mars, and its potential as a home for life whether martian or human.

Planetary Protection Issues in the Human Exploration of Mars

NASA Astrophysics Data System (ADS)

Criswell, Marvin E.; Race, M. S.; Rummel, J. D.; Baker, A.

2005-06-01

This workshop report, long delayed, is the first 21st century contribution to what will likely be a series of reports examining the effects of human exploration on the overall scientific study of Mars. The considerations of human-associated microbial contamination were last studied in a 1990 workshop ("Planetary Protection Issues and Future Mars Missions," NASA CP-10086, 1991), but the timing of that workshop allowed neither a careful examination of the full range of issues, nor an appreciation for the Mars that has been revealed by the Mars Global Surveyor and Mars Pathfinder missions. Future workshops will also have the advantage of Mars Odyssey, the Mars Exploration Rover missions, and ESA's Mars Express, but the Pingree Park workshop reported here had both the NCR's (1992) concern that "Missions carrying humans to Mars will contaminate the planet" and over a decade of careful study of human exploration objectives to guide them and to reconcile. A daunting challenge, and one that is not going to be simple (as the working title of this meeting, "When Ecologies Collide?" might suggest), it is clear that the planetary protection issues will have to be addressed to enable human explorers to safely and competently extend out knowledge about Mars, and its potential as a home for life whether martian or human.

Feasibility of Population Health Analytics and Data Visualization for Decision Support in the Infectious Diseases Domain

PubMed Central

Del Fiol, Guilherme; Butler, Jorie; Livnat, Yarden; Mayer, Jeanmarie; Samore, Matthew; Jones, Makoto; Weir, Charlene

2016-01-01

Summary Objective Big data or population-based information has the potential to reduce uncertainty in medicine by informing clinicians about individual patient care. The objectives of this study were: 1) to explore the feasibility of extracting and displaying population-based information from an actual clinical population’s database records, 2) to explore specific design features for improving population display, 3) to explore perceptions of population information displays, and 4) to explore the impact of population information display on cognitive outcomes. Methods We used the Veteran’s Affairs (VA) database to identify similar complex patients based on a similar complex patient case. Study outcomes measures were 1) preferences for population information display 2) time looking at the population display, 3) time to read the chart, and 4) appropriateness of plans with pre- and post-presentation of population data. Finally, we redesigned the population information display based on our findings from this study. Results The qualitative data analysis for preferences of population information display resulted in four themes: 1) trusting the big/population data can be an issue, 2) embedded analytics is necessary to explore patient similarities, 3) need for tools to control the view (overview, zoom and filter), and 4) different presentations of the population display can be beneficial to improve the display. We found that appropriateness of plans was at 60% for both groups (t9=-1.9; p=0.08), and overall time looking at the population information display was 2.3 minutes versus 3.6 minutes with experts processing information faster than non-experts (t8= -2.3, p=0.04). Conclusion A population database has great potential for reducing complexity and uncertainty in medicine to improve clinical care. The preferences identified for the population information display will guide future health information technology system designers for better and more intuitive display. PMID:27437065

Exploring example models of cross-sector, sessional employment of pharmacists to improve medication management and pharmacy support in rural hospitals.

PubMed

Tan, Amy Cw; Emmerton, Lynne M; Hattingh, Laetitia; La Caze, Adam

2015-01-01

Many rural hospitals in Australia are not large enough to sustain employment of a full-time pharmacist, or are unable to recruit or retain a full-time pharmacist. The absence of a pharmacist may result in hospital nurses undertaking medication-related roles outside their scope of practice. A potential solution to address rural hospitals' medication management needs is contracted part-time ('sessional') employment of a local pharmacist external to the hospital ('cross-sector'). The aim of this study was to explore the roles and experiences of pharmacists in their provision of sessional services to rural hospitals with no on-site pharmacist and explore how these roles could potentially address shortfalls in medication management in rural hospitals. A qualitative study was conducted to explore models with pharmacists who had provided sessional services to a rural hospital. A semi-structured interview guide was informed by a literature review, preliminary research and stakeholder consultation. Participants were recruited via advertisement and personal contacts. Consenting pharmacists were interviewed between August 2012 and January 2013 via telephone or Skype for 40-55 minutes. Thirteen pharmacists with previous or ongoing hospital sessional contracts in rural communities across Australia and New Zealand participated. Most commonly, the pharmacists provided weekly services to rural hospitals. All believed the sessional model was a practical solution to increase hospital access to pharmacist-mediated support and to address medication management gaps. Roles perceived to promote quality use of medicines were inpatient consultation services, medicines information/education to hospital staff, assistance with accreditation matters and system reviews, and input into pharmaceutical distribution activities. This study is the first to explore the concept of sessional rural hospital employment undertaken by pharmacists in Australia and New Zealand. Insights from participants revealed that their sessional employment model increased access to pharmacist-mediated medication management support in rural hospitals. The contracting arrangements and scope of services may be evaluated and adapted in other rural hospitals.

Exploring the Potential for and Promise of Incorporating Distributive and Procedural Justices into Post-Secondary Assessment of Student Learning

ERIC Educational Resources Information Center

Grace, Christine Cooper

2017-01-01

This paper explores the potential of incorporating constructs of distributive justice and procedural justice into summative assessment of student learning in higher education. I systematically compare the process used by managers to evaluate employee performance in organizations--performance appraisal (PA)--with processes used by professors to…