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2011

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Articles 4051 - 4080 of 6784

Full-Text Articles in Medicine and Health Sciences

Automation For Human-Robotic Interaction: Modeling And Predicting Operator Performance, Angelia Sebok, Christopher Wickens, Marc Gacy Jan 2011

Automation For Human-Robotic Interaction: Modeling And Predicting Operator Performance, Angelia Sebok, Christopher Wickens, Marc Gacy

International Symposium on Aviation Psychology - 2011

Human-robotic interaction presents numerous challenges to designers and operators. One way to address these challenges is through task automation. However, appropriate application of automation, reducing workload while keeping the operator informed and in control, without causing skill degradation, is not generally understood. In this paper, we describe a human performance modeling and simulation approach to evaluating the effects of automation on operator and system performance. In this research, we identify and combine relevant factors that affect operator performance into operator-robotic system interaction models. The result of this project will be a partially-validated tool to help system designers evaluate potential automation …


Characterizing Air Traffic Controller Sector Specific Knowledge: An Abstractionbased Analysis, Rahul Bhagat, Jonathan Histon, R. John Hansman Jan 2011

Characterizing Air Traffic Controller Sector Specific Knowledge: An Abstractionbased Analysis, Rahul Bhagat, Jonathan Histon, R. John Hansman

International Symposium on Aviation Psychology - 2011

The need to train air traffic controllers on sector-specific operational traffic patterns and procedures creates staffing inflexibility and training inefficiency across the National Airspace System (NAS). The deployment of generic airspace, or air traffic control sectors with similar operational characteristics, is one means of addressing these challenges in next generation (NextGen) ATC operational concepts. Based on prior work, local, sector specific knowledge, is thought to be captured in part through abstractions, or simplifications of a controller’s mental model. This paper describes a methodology used to identify key properties characterizing three distinct abstraction types (standard flows, handoffs, and merges). This categorization …


Combining Behavioral And Biometric Measurements For Automated Performance Assessment, Chris Forsythe, Robert A. Abbott, Susan M. Stevens-Addams, Michael Haass, Laura Matzen, Kiran Lakkaraju Jan 2011

Combining Behavioral And Biometric Measurements For Automated Performance Assessment, Chris Forsythe, Robert A. Abbott, Susan M. Stevens-Addams, Michael Haass, Laura Matzen, Kiran Lakkaraju

International Symposium on Aviation Psychology - 2011

Technologies are needed enabling more cost-effective military aviation training. Automated performance assessment has been advanced as one approach to enable instructors to make more effective use of simulation-based training systems. Recent experimental research will be reviewed illustrating that automated techniques produce student assessments comparable to human appraisals of student performance and employed within an after-action debrief, resulted in more effective training, as compared to a baseline after-action debrief capability. These studies used the E-2 Enhanced Deployable Readiness Trainer (EDRT), a medium-fidelity simulation trainer employed for training E-2 Hawkeye Naval Flight Officers (NFOs). This paper will summarize further developments to combine …


Genomic Analysis Of Individual Differences In Ethanol Drinking: Evidence For Non-Genetic Factors In C57bl/6 Mice, Jennifer T. Wolstenholme, Jon A. Warner, Maria I. Capparuccini, Kellie J. Archer, Keith L. Shelton, Michael F. Miles Jan 2011

Genomic Analysis Of Individual Differences In Ethanol Drinking: Evidence For Non-Genetic Factors In C57bl/6 Mice, Jennifer T. Wolstenholme, Jon A. Warner, Maria I. Capparuccini, Kellie J. Archer, Keith L. Shelton, Michael F. Miles

Pharmacology and Toxicology Publications

Genetic analysis of factors affecting risk to develop excessive ethanol drinking has been extensively studied in humans and animal models for over 20 years. However, little progress has been made in determining molecular mechanisms underlying environmental or non-genetic events contributing to variation in ethanol drinking. Here, we identify persistent and substantial variation in ethanol drinking behavior within an inbred mouse strain and utilize this model to identify gene networks influencing such “non-genetic” variation in ethanol intake. C57BL/6NCrl mice showed persistent inter-individual variation of ethanol intake in a two-bottle choice paradigm over a three-week period, ranging from less than 1 g/kg …


Teens Texting And Consequences: A Brief Review, Archana Srinivas, Megan White, Hatim A. Omar Jan 2011

Teens Texting And Consequences: A Brief Review, Archana Srinivas, Megan White, Hatim A. Omar

Pediatrics Faculty Publications

The aim of this paper is to summarize the current literature on texting use amongst adolescents. A brief overview will be presented on the prevalence of texting among teenagers, the use of texting for sexting and cyberbullying as well as the dangers of texting while driving. This paper will serve as a brief overview of these topics in order to bring to light the emerging challenges that texting presents to the mental and physical well-being of adolescents in an effort to evoke further discussion regarding the need for increasing awareness and education to parents, educators, law makers and health care …


Hand Grip Strength: Age And Gender Stratified Normative Data In A Population-Based Study, N. M. Massy-Westropp, T. K. Gill, A. W. Taylor, R. W. Bohannon, C. L. Hill Jan 2011

Hand Grip Strength: Age And Gender Stratified Normative Data In A Population-Based Study, N. M. Massy-Westropp, T. K. Gill, A. W. Taylor, R. W. Bohannon, C. L. Hill

Physical Therapy

No abstract provided.


Immunohistochemical Study Of Human Costotransverse Joints: A Preliminary Investigation, G. S. Dedrick, P. S. Sizer, B. G. Sawyer, J. M. Brismée, M. P. Smith Jan 2011

Immunohistochemical Study Of Human Costotransverse Joints: A Preliminary Investigation, G. S. Dedrick, P. S. Sizer, B. G. Sawyer, J. M. Brismée, M. P. Smith

Physical Therapy

No abstract provided.


Immediate Changes In Spinal Height And Pain After Aquatic Vertical Traction In Patients With Persistent Low Back Symptoms: A Crossover Clinical Trial, S. M. Simmerman, P. S. Sizer, G. S. Dedrick, G. G. Apte, J. M. Brismée Jan 2011

Immediate Changes In Spinal Height And Pain After Aquatic Vertical Traction In Patients With Persistent Low Back Symptoms: A Crossover Clinical Trial, S. M. Simmerman, P. S. Sizer, G. S. Dedrick, G. G. Apte, J. M. Brismée

Physical Therapy

No abstract provided.


The Deep Neck Flexor Endurance Test: Normative Data Scores In Healthy Adults, M. A. Domenech, P. S. Sizer, G. S. Dedrick, M. K. Mcgalliard, J. M. Brismée Jan 2011

The Deep Neck Flexor Endurance Test: Normative Data Scores In Healthy Adults, M. A. Domenech, P. S. Sizer, G. S. Dedrick, M. K. Mcgalliard, J. M. Brismée

Physical Therapy

No abstract provided.


Change In Spine Height Measurements Following Sustained Mid-Range And End-Range Flexion Of The Lumbar Spine, D. A. Gerke, J. M. Brismée, P. S. Sizer, G. S. Dedrick, C. R. James Jan 2011

Change In Spine Height Measurements Following Sustained Mid-Range And End-Range Flexion Of The Lumbar Spine, D. A. Gerke, J. M. Brismée, P. S. Sizer, G. S. Dedrick, C. R. James

Physical Therapy

No abstract provided.


Association Of Disturbances In The Thoracic Outlet In Subjects With Carpal Tunnel Syndrome: A Case-Control Study, M. S. Vaught, J. M. Brismée, G. S. Dedrick, P. S. Sizer, S. F. Sawyer Jan 2011

Association Of Disturbances In The Thoracic Outlet In Subjects With Carpal Tunnel Syndrome: A Case-Control Study, M. S. Vaught, J. M. Brismée, G. S. Dedrick, P. S. Sizer, S. F. Sawyer

Physical Therapy

No abstract provided.


Anti-Saccade Performance Predicts Executive Function And Brain Structure In Normal Elders, J. B. Mirsky, H. W. Heuer, A. Jafari, J. H. Kramer, A. K. Schenk, Indre Viskontas, B. L. Miller, A. L. Boxer Jan 2011

Anti-Saccade Performance Predicts Executive Function And Brain Structure In Normal Elders, J. B. Mirsky, H. W. Heuer, A. Jafari, J. H. Kramer, A. K. Schenk, Indre Viskontas, B. L. Miller, A. L. Boxer

Psychology

Objective—To assess the neuropsychological and anatomical correlates of anti-saccade (AS) task performance in normal elders.

Background—The AS task correlates with neuropsychological measures of executive function and frontal lobe volume in neurological diseases, but has not been studied in a well-characterized normal elderly population. Because executive dysfunction can indicate an increased risk for cognitive decline in cognitively normal elders, we hypothesized that AS performance might be a sensitive test of age-related processes that impair cognition.

Method—The percentage of correct AS responses was evaluated in forty-eight normal elderly subjects and compared with neuropsychological test performance using linear regression analysis …


Multimodal Cuing Of Autobiographical Memory In Semantic Dementia, D. L. Greenberg, J. M. Ogar, Indre Viskontas, M. L. Gorno Tempini, B. Miller, B. J. Knowlton Jan 2011

Multimodal Cuing Of Autobiographical Memory In Semantic Dementia, D. L. Greenberg, J. M. Ogar, Indre Viskontas, M. L. Gorno Tempini, B. Miller, B. J. Knowlton

Psychology

OBJECTIVE: Individuals with semantic dementia (SD) have impaired autobiographical memory (AM), but the extent of the impairment has been controversial. According to one report (Westmacott, Leach, Freedman, & Moscovitch, 2001), patient performance was better when visual cues were used instead of verbal cues; however, the visual cues used in that study (family photographs) provided more retrieval support than do the word cues that are typically used in AM studies. In the present study, we sought to disentangle the effects of retrieval support and cue modality.

METHOD: We cued AMs of 5 patients with SD and 5 controls with words, simple …


Mid-Atlantic Ethics Committee Newsletter, Winter 2011 Jan 2011

Mid-Atlantic Ethics Committee Newsletter, Winter 2011

Mid-Atlantic Ethics Committee Newsletter

No abstract provided.


Nyc Budget Cuts: A Counter-Productive Method To Effective Government-Nonprofit Contracting Relationships?, Anna-Kay Sinclair Jan 2011

Nyc Budget Cuts: A Counter-Productive Method To Effective Government-Nonprofit Contracting Relationships?, Anna-Kay Sinclair

Wilson Center for Social Entrepreneurship

This study examines the relationship between New York City budget cuts and the expenditure of human service nonprofits specifically involved in the government contracting relationship. With a focus on the Department for the Aging (DFTA), I examine nonprofits that provide a variety of services to the aging population on behalf of the DFTA. Correlations and regressions are presented examining the relationship between DFTA budget and nonprofit spending. The results of my analysis do not indicate a positive relationship between these two variables.


Nursing Annual Report 2010, Children's Mercy Hospital Jan 2011

Nursing Annual Report 2010, Children's Mercy Hospital

Nursing Annual Reports

Annual report for nursing services at Children's Mercy Kansas City.


Fentanyl And Spiradoline Interactions In A Place-Conditioning Black-White Shuttle-Box, David J. Mokler, Richard H. Rech, Shannon L. Briggs Jan 2011

Fentanyl And Spiradoline Interactions In A Place-Conditioning Black-White Shuttle-Box, David J. Mokler, Richard H. Rech, Shannon L. Briggs

Biomedical Sciences Faculty Publications

Rats were trained for multiple sessions in a place-conditioning shuttle-box to explore motivational interactions of mu and kappa opioid agonists, specifically fentanyl reward and spiradoline aversion. In Phase 1, groups of rats received various doses of mu or kappa agonists, or placebo, testing for preference or aversion. Group A always received saline SC before 15-minute sessions. Group B received fentanyl SC (0.003, 0.006, 0.012 mg/kg), Group C received low and medium doses of agonists SC, and Group D received spiradoline (0.3, 0.6, 1.2 mg/kg) SC during Training Sessions 1-4, rats being restricted to the drug-associated compartment. Rats received saline when …


A Retrospective Population Based Cohort Study Examining The Black White Gap In Infant Mortality, Ina Marie Peoples Jan 2011

A Retrospective Population Based Cohort Study Examining The Black White Gap In Infant Mortality, Ina Marie Peoples

Presidential Alumni Research Dissemination Award

Black women in one US City have more than a 2-fold likelihood of experiencing a death in the womb or an infant death within the first year of life when compared to Whites. The purpose of this retrospective population based cohort study was to examine the unexplained high rates of Black fetal and infant (feto-infant) mortality in this city. The study was built on the perinatal periods of risk (PPOR) model. The PPOR model maps each death in a geographic region into four distinct periods of risk based on birth weight and age at death. The study relied upon 51,303 …


Ten Year Trends (1992 To 2002) In Sociodemographic Predictors And Indicators Of Alcohol Abuse And Dependence Among Whites, Blacks, And Hispanics In The U.S, Raul Caetano, Jonali Baruah, Karen G. Chartier Jan 2011

Ten Year Trends (1992 To 2002) In Sociodemographic Predictors And Indicators Of Alcohol Abuse And Dependence Among Whites, Blacks, And Hispanics In The U.S, Raul Caetano, Jonali Baruah, Karen G. Chartier

Social Work Publications

Background

The objective of this paper is to examine 10-year trends (1992–2002) in the number and type of indicators of DSM-IV abuse and dependence among Whites, Blacks and Hispanics in the U.S.

Methods

Data are from the 1991–1992 National Longitudinal Alcohol Epidemiologic Survey (NLAES; n = 42,862) and the 2001–2002 National Epidemiologic Study on Alcohol and Related Conditions (NESARC; n = 43,093). Both surveys used multistage cluster sample procedures to select respondents 18 years of age and older from the U.S. household population.

Results

Increases in the prevalence of alcohol abuse between 1992 and 2002seem associated to a rise in …


Faculty Impressions Of Dental Students’ Performance With And Without Virtual Reality Simulation, Riki Gottlieb, Sharon K. Lanning, John C. Gunsolley, Judith A. Buchanan Jan 2011

Faculty Impressions Of Dental Students’ Performance With And Without Virtual Reality Simulation, Riki Gottlieb, Sharon K. Lanning, John C. Gunsolley, Judith A. Buchanan

Periodontics Publications

This study compared faculty perceptions and expectations of dental students’ abilities using virtual reality simulation (VRS) to those who did not use virtual reality simulation (non-VRS) in an operative dentistry preclinical course. A sixteen-item survey with a ten-point rating scale and three open-ended questions asked about students’ abilities in ergonomics, confidence level, performance, preparation, and self-assessment. The surveys were administered three times to a small group of preclinical faculty members. First, faculty members (n=12, 92 percent response rate) gave their perceptions of non-VRS students’ abilities at the end of their traditional course. Secondly, faculty members (n=13, 100 percent response rate) …


Genetic Analysis Of The Neurosteroid Deoxycorticosterone And Its Relation To Alcohol Phenotypes: Identification Of Qtls And Downstream Gene Regulation, Patrizia Porcu, Todd K. O'Buckley, Soomin C. Song, Jo Lynne Harenza, Lu Lu, Xusheng Wang, Michael F. Miles, A. Leslie Morrow Jan 2011

Genetic Analysis Of The Neurosteroid Deoxycorticosterone And Its Relation To Alcohol Phenotypes: Identification Of Qtls And Downstream Gene Regulation, Patrizia Porcu, Todd K. O'Buckley, Soomin C. Song, Jo Lynne Harenza, Lu Lu, Xusheng Wang, Michael F. Miles, A. Leslie Morrow

Neurology Publications

Background

Deoxycorticosterone (DOC) is an endogenous neurosteroid found in brain and serum, precursor of the GABAergic neuroactive steroid (3α,5α)-3,21-dihydroxypregnan-20-one (tetrahydrodeoxycorticosterone, THDOC) and the glucocorticoid corticosterone. These steroids are elevated following stress or ethanol administration, contribute to ethanol sensitivity, and their elevation is blunted in ethanol dependence.

Methodology/Principal Findings

To systematically define the genetic basis, regulation, and behavioral significance of DOC levels in plasma and cerebral cortex we examined such levels across 47 young adult males from C57BL/6J (B6)×DBA/2J (D2) (BXD) mouse strains for quantitative trait loci (QTL) and bioinformatics analyses of behavior and gene regulation. Mice were injected with saline …


Air Pollution & The Brain: Subchronic Diesel Exhaust Exposure Causes Neuroinflammation And Elevates Early Markers Of Neurodegenerative Disease, Shannon Levesque, Michael J. Surace, Jacob Mcdonald, Michelle L. Block Jan 2011

Air Pollution & The Brain: Subchronic Diesel Exhaust Exposure Causes Neuroinflammation And Elevates Early Markers Of Neurodegenerative Disease, Shannon Levesque, Michael J. Surace, Jacob Mcdonald, Michelle L. Block

Anatomy and Neurobiology Publications

Background

Increasing evidence links diverse forms of air pollution to neuroinflammation and neuropathology in both human and animal models, but the effects of long-term exposures are poorly understood.

Objective

We explored the central nervous system consequences of subchronic exposure to diesel exhaust (DE) and addressed the minimum levels necessary to elicit neuroinflammation and markers of early neuropathology.

Methods

Male Fischer 344 rats were exposed to DE (992, 311, 100, 35 and 0 μg PM/m3) by inhalation over 6 months.

Results

DE exposure resulted in elevated levels of TNFα at high concentrations in all regions tested, with the exception …


Chronic Apocynin Treatment Attenuates Beta Amyloid Plaque Size And Microglial Number In Happ(751)Sl Mice, Melinda E. Lull, Shannon Levesque, Michael J. Surace, Michelle L. Block Jan 2011

Chronic Apocynin Treatment Attenuates Beta Amyloid Plaque Size And Microglial Number In Happ(751)Sl Mice, Melinda E. Lull, Shannon Levesque, Michael J. Surace, Michelle L. Block

Anatomy and Neurobiology Publications

Background

NADPH oxidase is implicated in neurotoxic microglial activation and the progressive nature of Alzheimer's Disease (AD). Here, we test the ability of two NADPH oxidase inhibitors, apocynin and dextromethorphan (DM), to reduce learning deficits and neuropathology in transgenic mice overexpressing human amyloid precursor protein with the Swedish and London mutations (hAPP(751)SL).

Methods

Four month old hAPP(751)SL mice were treated daily with saline, 15 mg/kg DM, 7.5 mg/kg DM, or 10 mg/kg apocynin by gavage for four months.

Results

Only hAPP(751)SL mice treated with apocynin showed reduced plaque size and a reduction in the number of cortical microglia, when compared …


The Streptococcus Sanguinis Competence Regulon Is Not Required For Infective Endocarditis Virulence In A Rabbit Model, Jill E. Callahan, Cindy L. Munro, Todd Kitten Jan 2011

The Streptococcus Sanguinis Competence Regulon Is Not Required For Infective Endocarditis Virulence In A Rabbit Model, Jill E. Callahan, Cindy L. Munro, Todd Kitten

Philips Institute for Oral Health Research Publications

Streptococcus sanguinis is an important component of dental plaque and a leading cause of infective endocarditis. Genetic competence in S. sanguinis requires a quorum sensing system encoded by the early comCDE genes, as well as late genes controlled by the alternative sigma factor, ComX. Previous studies of Streptococcus pneumoniae and Streptococcus mutans have identified functions for the >100-gene com regulon in addition to DNA uptake, including virulence. We investigated this possibility in S. sanguinis. Strains deleted for the comCDE orcomX master regulatory genes were created. Using a rabbit endocarditis model in conjunction with a variety of virulence assays, …


Fto And Mc4r Gene Variants Are Associated With Obesity In Polycystic Ovary Syndrome, Kathryn G. Ewens, Michelle R. Jones, Wendy Ankener, Douglas R. Stewart, Margrit Urbanek, Andrea Dunaif, Richard S. Legro, Angela Chua, Ricardo Azziz, Richard S. Spielman, Mark O. Goodarzi, Jerome F. Strauss Iii Jan 2011

Fto And Mc4r Gene Variants Are Associated With Obesity In Polycystic Ovary Syndrome, Kathryn G. Ewens, Michelle R. Jones, Wendy Ankener, Douglas R. Stewart, Margrit Urbanek, Andrea Dunaif, Richard S. Legro, Angela Chua, Ricardo Azziz, Richard S. Spielman, Mark O. Goodarzi, Jerome F. Strauss Iii

Obstetrics and Gynecology Publications

Polycystic ovary syndrome (PCOS) is the leading cause of anovulatory infertility in women. It is also associated with metabolic disturbances that place women at increased risk for obesity and type 2 diabetes. There is strong evidence for familial clustering of PCOS and a genetic predisposition. However, the gene(s) responsible for the PCOS phenotypes have not been elucidated. This two-phase family-based and case-control genetic study was designed to address the question of whether SNPs identified as susceptibility loci for obesity in genome-wide association studies (GWAS) are also associated with PCOS and elevated BMI. Members of 439 families having at least one …


2011 Report Of The Director Of Public Health - Social Inequalities In Health In Montreal. Progess To Date, Dr. Margaret Chan, World Health Organization Jan 2011

2011 Report Of The Director Of Public Health - Social Inequalities In Health In Montreal. Progess To Date, Dr. Margaret Chan, World Health Organization

Mickey Leland Center Information Portal

In 1998, the Direction de santé publique de Montréal’s first annual report noted a 10-year difference between the average life expectancy of men living in disadvantaged neighbourhoods and of those in wealthy areas. Over a decade has gone by since this first portrait of Montrealers’ state of health was published and it is now time to measure the progress we have made. Therefore, the Director’s 2011 report is focused on social inequalities in health.


Community Ecology And Capacity: Advancing Environmental Communication Strategies Among Diverse Stakeholders, Rosemary M. Caron, Michael E. Rezaee, Danielle Dionne Jan 2011

Community Ecology And Capacity: Advancing Environmental Communication Strategies Among Diverse Stakeholders, Rosemary M. Caron, Michael E. Rezaee, Danielle Dionne

Health Management & Policy

1. Introduction Many socioeconomically and geographically diverse communities in the United States have been challenged by occurrences of environmental contamination and the related complex public health issues. The investigations associated with such concerns have traditionally been the responsibility of governmental agencies. Communities facing potential environmental exposures often believe that government-based environmental agencies are not adequately addressing their concerns regarding risk, thus resulting in their misunderstanding and distrust of the regulatory process. A schism develops whereby the community perceives that government is either not doing enough to address their concerns and/or are being influenced by the relevant industry. The governmental agencies …


Fact Sheet: Role Of Occupational Therapy, Shelia Longpre Jan 2011

Fact Sheet: Role Of Occupational Therapy, Shelia Longpre

Occupational Therapy Faculty Books and Book Chapters

No abstract provided.


Com Outlook Winter 2011, College Of Osteopathic Medicine Jan 2011

Com Outlook Winter 2011, College Of Osteopathic Medicine

COM Outlook

No abstract provided.


Medical Education Digest, Vol. 13 No. 1 (January/February 2011), Nova Southeastern University Jan 2011

Medical Education Digest, Vol. 13 No. 1 (January/February 2011), Nova Southeastern University

Medical Education Digest

No abstract provided.