21 CFR 312.120 - Foreign clinical studies not conducted under an IND.

Code of Federal Regulations, 2010 CFR

2010-04-01

... HUMAN SERVICES (CONTINUED) DRUGS FOR HUMAN USE INVESTIGATIONAL NEW DRUG APPLICATION Miscellaneous § 312... the act or section 351 of the Public Health Service Act (the PHS Act) (42 U.S.C. 262)) a well-designed... this section, GCP is defined as a standard for the design, conduct, performance, monitoring, auditing...

43 CFR 404.19 - What requirements must be met before I can request assistance to conduct a feasibility study?

Code of Federal Regulations, 2011 CFR

2011-10-01

... request assistance to conduct a feasibility study? 404.19 Section 404.19 Public Lands: Interior... a feasibility study? All of the following requirements must be met before you can request assistance to conduct a feasibility study: (a) An appraisal investigation must be completed, with or without...

Methodology Series Module 3: Cross-sectional Studies.

PubMed

Setia, Maninder Singh

2016-01-01

Cross-sectional study design is a type of observational study design. In a cross-sectional study, the investigator measures the outcome and the exposures in the study participants at the same time. Unlike in case-control studies (participants selected based on the outcome status) or cohort studies (participants selected based on the exposure status), the participants in a cross-sectional study are just selected based on the inclusion and exclusion criteria set for the study. Once the participants have been selected for the study, the investigator follows the study to assess the exposure and the outcomes. Cross-sectional designs are used for population-based surveys and to assess the prevalence of diseases in clinic-based samples. These studies can usually be conducted relatively faster and are inexpensive. They may be conducted either before planning a cohort study or a baseline in a cohort study. These types of designs will give us information about the prevalence of outcomes or exposures; this information will be useful for designing the cohort study. However, since this is a 1-time measurement of exposure and outcome, it is difficult to derive causal relationships from cross-sectional analysis. We can estimate the prevalence of disease in cross-sectional studies. Furthermore, we will also be able to estimate the odds ratios to study the association between exposure and the outcomes in this design.

Methodology Series Module 3: Cross-sectional Studies

PubMed Central

Setia, Maninder Singh

2016-01-01

Cross-sectional study design is a type of observational study design. In a cross-sectional study, the investigator measures the outcome and the exposures in the study participants at the same time. Unlike in case–control studies (participants selected based on the outcome status) or cohort studies (participants selected based on the exposure status), the participants in a cross-sectional study are just selected based on the inclusion and exclusion criteria set for the study. Once the participants have been selected for the study, the investigator follows the study to assess the exposure and the outcomes. Cross-sectional designs are used for population-based surveys and to assess the prevalence of diseases in clinic-based samples. These studies can usually be conducted relatively faster and are inexpensive. They may be conducted either before planning a cohort study or a baseline in a cohort study. These types of designs will give us information about the prevalence of outcomes or exposures; this information will be useful for designing the cohort study. However, since this is a 1-time measurement of exposure and outcome, it is difficult to derive causal relationships from cross-sectional analysis. We can estimate the prevalence of disease in cross-sectional studies. Furthermore, we will also be able to estimate the odds ratios to study the association between exposure and the outcomes in this design. PMID:27293245

43 CFR 404.20 - What information must I include in my full proposal to conduct an appraisal or a feasibility study?

Code of Federal Regulations, 2011 CFR

2011-10-01

... proposal to conduct an appraisal or a feasibility study? 404.20 Section 404.20 Public Lands: Interior... appraisal or a feasibility study? A full proposal to conduct an appraisal investigation or a feasibility... feasibility study and a plan for addressing those issues. The information provided must also address each of...

Health and Safety Research Division. Progress report, October 1, 1979-March 31, 1981

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

Not Available

1981-08-01

Research progress for the period October 1, 1979 through March 31, 1981 is reported. Research conducted by the Office of Integrated Assessments and Policy Analysis, Health Studies Section, Technology Assessments Section, Biological and Radiation Physics Section, and Chemical Physics Section is summarized. (ACR)

40 CFR 159.178 - Information on pesticides in or on food, feed or water.

Code of Federal Regulations, 2010 CFR

2010-07-01

... excess of established levels, except that information on excess residues resulting solely from studies conducted under authority of FIFRA section 5 or under other controlled research studies conducted to test a...

Cross sectional study to evaluate the effect of duration of type 2 diabetes mellitus on the nerve conduction velocity in diabetic peripheral neuropathy.

PubMed

Hussain, Gauhar; Rizvi, S Aijaz Abbas; Singhal, Sangeeta; Zubair, Mohammad; Ahmad, Jamal

2014-01-01

To study the nerve conduction velocity in clinically undetectable and detectable peripheral neuropathy in type 2 diabetes mellitus with variable duration. This cross sectional study was conducted in diagnosed type 2 diabetes mellitus patients. They were divided in groups: Group I (n=37) with clinically detectable diabetic peripheral neuropathy of shorter duration and Group II (n=27) with clinically detectable diabetic peripheral neuropathy of longer duration. They were compared with T2DM patients (n=22) without clinical neuropathy. Clinical diagnosis was based on neuropathy symptom score (NSS) and neuropathy disability score (NDS) for signs. Nerve conduction velocity was measured in both upper and lower limbs. Median, ulnar, common peroneal and posterior tibial nerves were selected for motor nerve conduction study and median and sural nerves were selected for sensory nerve conduction study. The comparisons were done between nerve conduction velocities of motor and sensory nerves in patients of clinically detectable neuropathy and patients without neuropathy in type 2 diabetes mellitus population. This study showed significant electrophysiological changes with duration of disease. Nerve conduction velocities in lower limbs were significantly reduced even in patients of shorter duration with normal upper limb nerve conduction velocities. Diabetic neuropathy symptom score (NSS) and neuropathy disability score (NDS) can help in evaluation of diabetic sensorimotor polyneuropathy though nerve conduction study is more powerful test and can help in diagnosing cases of neuropathy. Copyright © 2013 Diabetes India. Published by Elsevier Ltd. All rights reserved.

78 FR 75922 - Safety and Occupational Health Study Section (SOHSS), National Institute for Occupational Safety...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-13

..., 2014 (Closed) 8:00 a.m.-5:00 p.m., February 21, 2014 (Closed) Place: Embassy Suites, 1900 Diagonal Road... meeting will convene to address matters related to the conduct of Study Section business and for the study...

76 FR 75875 - Plan for Conduct of 2012 Electric Transmission Congestion Study

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-05

... DEPARTMENT OF ENERGY Plan for Conduct of 2012 Electric Transmission Congestion Study AGENCY... preparation of a study of electric transmission congestion pursuant to section 216(a)(1) of the Federal Power...-register at this Web site: http://energy.gov/oe/congestion-study-2012 . [[Page 75876

Associations between high levels of conduct problems and co-occurring problems among the youngest boys and girls in schools: a cross-sectional study.

PubMed

Kirkhaug, Bente; Drugli, May Britt; Lydersen, Stian; Mørch, Willy-Tore

2013-08-01

Few studies have focused on conduct problems and co-occurring problems among the youngest children in schools, such as social, internalizing and attention problems. In particular, there is a lack of studies that differentiate between boys and girls in terms of such problems. The aim of the current study was to test associations between conduct problems and social, internalizing and attention problems, as well as adaptive school functioning, which was rated by the teachers of boys and girls in grades 1-3. In a cross-sectional study, 103 boys and 108 girls in grades 1-3 at six schools participated in a national Norwegian study of child conduct problems in the normal population. Linear regression analysis was used to test the associations between conduct problems, social skills, problems of internalization, attention problems and adaptation to school among boys and girls. There were significant associations between high levels of conduct problems and social skills problems, attention problems and low adaptive school functioning scores among boys and girls. Attention problems had the most powerful associations with conduct problems for both genders. Young schoolchildren with high levels of conduct problems also had co-occurring problems. Schools and teachers need to adopt a comprehensive approach to help these children during their first years in school.

Post-market clinical research conducted by medical device manufacturers: a cross-sectional survey.

PubMed

Ross, Joseph S; Blount, Katrina L; Ritchie, Jessica D; Hodshon, Beth; Krumholz, Harlan M

2015-01-01

In the US, once a medical device is made available for use, several requirements have been established by the US Food and Drug Administration (FDA) to ensure ongoing post-market surveillance of device safety and effectiveness. Our objective was to determine how commonly medical device manufacturers initiate post-market clinical studies or augment FDA post-market surveillance requirements for higher-risk devices that are most often approved via the FDA's pre-market approval (PMA) pathway. We conducted a cross-sectional survey of 47 manufacturers with operations in California, Minnesota, and Massachusetts who market devices approved via the PMA pathway. Among 22 respondents (response rate =47%), nearly all self-reported conducting post-market clinical research studies, commonly between 1 and 5; only 1 respondent reported never conducting post-market clinical research studies. While manufacturers most often engaged in these studies to satisfy FDA requirements, other reasons were reported, including performance monitoring and surveillance and market acceptance initiatives. Risks of conducting and not conducting post-market clinical research studies were described through open-ended response to questions. Medical device manufacturers commonly initiate post-market clinical studies at the request of the FDA. Clinical data from these studies should be integrated into national post-market surveillance initiatives.

Post-market clinical research conducted by medical device manufacturers: a cross-sectional survey

PubMed Central

Ross, Joseph S; Blount, Katrina L; Ritchie, Jessica D; Hodshon, Beth; Krumholz, Harlan M

2015-01-01

Background In the US, once a medical device is made available for use, several requirements have been established by the US Food and Drug Administration (FDA) to ensure ongoing post-market surveillance of device safety and effectiveness. Our objective was to determine how commonly medical device manufacturers initiate post-market clinical studies or augment FDA post-market surveillance requirements for higher-risk devices that are most often approved via the FDA’s pre-market approval (PMA) pathway. Methods and results We conducted a cross-sectional survey of 47 manufacturers with operations in California, Minnesota, and Massachusetts who market devices approved via the PMA pathway. Among 22 respondents (response rate =47%), nearly all self-reported conducting post-market clinical research studies, commonly between 1 and 5; only 1 respondent reported never conducting post-market clinical research studies. While manufacturers most often engaged in these studies to satisfy FDA requirements, other reasons were reported, including performance monitoring and surveillance and market acceptance initiatives. Risks of conducting and not conducting post-market clinical research studies were described through open-ended response to questions. Conclusion Medical device manufacturers commonly initiate post-market clinical studies at the request of the FDA. Clinical data from these studies should be integrated into national post-market surveillance initiatives. PMID:26060416

Space shuttle orbit maneuvering engine reusable thrust chamber. Task 13: Subscale helium ingestion and two dimensional heating test report

NASA Technical Reports Server (NTRS)

Tobin, R. D.

1974-01-01

Descriptions are given of the test hardware, facility, procedures, and results of electrically heated tube, channel and panel tests conducted to determine effects of helium ingestion, two dimensional conduction, and plugged coolant channels on operating limits of convectively cooled chambers typical of space shuttle orbit maneuvering engine designs. Helium ingestion in froth form, was studied in tubular and rectangular single channel test sections. Plugged channel simulation was investigated in a three channel panel. Burn-out limits (transition of film boiling) were studied in both single channel and panel test sections to determine 2-D conduction effects as compared to tubular test results.

Control-Structure-Interaction (CSI) technologies and trends to future NASA missions

NASA Technical Reports Server (NTRS)

1990-01-01

Control-structure-interaction (CSI) issues which are relevant for future NASA missions are reviewed. This goal was achieved by: (1) reviewing large space structures (LSS) technologies to provide a background and survey of the current state of the art (SOA); (2) analytically studying a focus mission to identify opportunities where CSI technology may be applied to enhance or enable future NASA spacecraft; and (3) expanding a portion of the focus mission, the large antenna, to provide in-depth trade studies, scaling laws, and methodologies which may be applied to other NASA missions. Several sections are presented. Section 1 defines CSI issues and presents an overview of the relevant modeling and control issues for LLS. Section 2 presents the results of the three phases of the CSI study. Section 2.1 gives the results of a CSI study conducted with the Geostationary Platform (Geoplat) as the focus mission. Section 2.2 contains an overview of the CSI control design methodology available in the technical community. Included is a survey of the CSI ground-based experiments which were conducted to verify theoretical performance predictions. Section 2.3 presents and demonstrates a new CSI scaling law methodology for assessing potential CSI with large antenna systems.

42 CFR 90.8 - Conduct of health assessments and health effects studies.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 1 2010-10-01 2010-10-01 false Conduct of health assessments and health effects studies. 90.8 Section 90.8 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH ASSESSMENTS AND HEALTH EFFECTS STUDIES OF HAZARDOUS SUBSTANCES RELEASES AND FACILITIES...

Truck characteristics analysis

DOT National Transportation Integrated Search

1998-01-01

This report documents the early observations from the Long-Term Pavement Performance (LTPP) Specific Pavement Studies (SPS) conducted as part of the LTPP Program Data Insight conducted to identify initial findings from the test sections established f...

Alternative fuels study : a report to Congress on policy options for increasing the use of alternative fuels in transit vehicles, December 2006.

DOT National Transportation Integrated Search

2006-12-01

This report presents the results of a study required by Section 3016(c) of the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU). That section directed the Secretary of Transportation to conduct a study...

Technological Advance in an Expanding Economy: Its Impact on a Cross-Section of the Labor Force.

ERIC Educational Resources Information Center

Mueller, Eva; And Others

In 1967 the Survey Research Center at the University of Michigan conducted a nationwide survey to determine the impact of changes in machine technology on a cross-section of the labor force. Although many studies have been made about automation, this study was larger in scope than most research and made use of cross-sectional analysis to show the…

A Cross-Sectional Study of School Experiences of Boys with Duchenne and Becker Muscular Dystrophy

ERIC Educational Resources Information Center

Soim, Aida; Lamb, Molly; Campbell, Kimberly; Pandya, Shree; Peay, Holly; Howard, James F., Jr.; Fox, Deborah

2016-01-01

The objectives of this study were to investigate types of supportive school services received and factors related to provision of these services. We conducted a cross-sectional study to describe the school experience of males with Duchenne and Becker muscular dystrophies. Study subjects were identified through the Muscular Dystrophy Surveillance,…

High-temperature photochemical destruction of toxic organic wastes using concentrated solar radiation

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

Dellinger, B.; Graham, J.L.; Berman, J.M.

1994-05-01

Application of concentrated solar energy has been proposed to be a viable waste disposal option. Specifically, this concept of solar induced high-temperature photochemistry is based on the synergistic contribution of concentrated infrared (IR) radiation, which acts as an intense heating source, and near ultraviolet and visible (UV-VIS) radiation, which can induce destructive photochemical processes. Some significant advances have been made in the theoretical framework of high-temperature photochemical processes (Section 2) and development of experimental techniques for their study (Section 3). Basic thermal/photolytic studies have addressed the effect of temperature on the photochemical destruction of pure compounds (Section 4). Detailed studiesmore » of the destruction of reaction by-products have been conducted on selected waste molecules (Section 5). Some very limited results are available on the destruction of mixtures (Section 6). Fundamental spectroscopic studies have been recently initiated (Section 7). The results to date have been used to conduct some relatively simple scale-up studies of the solar detoxification process. More recent work has focused on destruction of compounds that do not directly absorb solar radiation. Research efforts have focused on homogeneous as well as heterogeneous methods of initiating destructive reaction pathways (Section 9). Although many conclusions at this point must be considered tentative due to lack of basic research, a clearer picture of the overall process is emerging (Section 10). However, much research remains to be performed and most follow several veins, including photochemical, spectroscopic, combustion kinetic, and engineering scale-up (Section 11).« less

Cross-Sectional Evaluation of English Language Teachers' Technological Pedagogical Content Knowledge

ERIC Educational Resources Information Center

Yuksel, Ismail; Yasin, Elif

2014-01-01

The current study aims to identify the language teachers' technological pedagogical content knowledge and to examine their competency levels in terms of gender, length of service, and workplace. This cross-sectional evaluation study was conducted with 124 language teachers in Eskisehir, Turkey. Participants were administered Technological…

An Investigation Into Criteria Commonly Used by the FAA to Grant Relief to Part 135 Operators Under FAR Sections: 135.213, 135.219, and/or 135.225

NASA Technical Reports Server (NTRS)

Williams, Louis J.; Heck, Michael L.; Burgess, Malcolm A.; Stough, H. P. (Technical Monitor)

2002-01-01

The objective of this study was to determine the criteria commonly used by the FAA to grant waivers, exemptions, or deviations to FAR Part 135, Sections 135.213, 135.219, and 135.225 and the potential impact on Flight Information Services Data Link (FISDL) implementation. These aviation regulations address the requirements for the use of weather reports or forecasts when conducting operations under FAR Part 135. In this study a literature search was conducted to obtain historical records of requests for relief from the 3 FAR sections under consideration. The exemption request records were then analyzed in order to determine the reasons given by the FAA for either granting or denying the request. In addition, FAA personnel and Part 135 operators were interviewed to determine the procedures used for satisfying the requirements of the 3 FAR sections.

Hospice Decision Making: Diagnosis Makes a Difference

ERIC Educational Resources Information Center

Waldrop, Deborah P.; Meeker, Mary Ann

2012-01-01

Purpose: This study explored the process of decision making about hospice enrollment and identified factors that influence the timing of that decision. Methods: This study employed an exploratory, descriptive, cross-sectional design and was conducted using qualitative methods. In-depth in-person semistructured interviews were conducted with 36…

28 CFR 0.95 - General functions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... and personnel, pursuant to section 5003 of title 18 of the U.S. Code. (h) Conduct of studies and the preparation and submission of reports and recommendations to committing courts respecting disposition of cases... and prepare, or cause to be conducted and prepared, studies and submit reports to the court and the...

Computer-Based Learning: Graphical Integration of Whole and Sectional Neuroanatomy Improves Long-Term Retention

ERIC Educational Resources Information Center

Naaz, Farah; Chariker, Julia H.; Pani, John R.

2014-01-01

A study was conducted to test the hypothesis that instruction with graphically integrated representations of whole and sectional neuroanatomy is especially effective for learning to recognize neural structures in sectional imagery (such as magnetic resonance imaging [MRI]). Neuroanatomy was taught to two groups of participants using computer…

The Moderating Role of Close Friends in the Relationship Between Conduct Problems and Adolescent Substance Use

PubMed Central

Glaser, Beate; Shelton, Katherine H.; van den Bree, Marianne B.M.

2010-01-01

Purpose Conduct problems and peer effects are among the strongest risk factors for adolescent substance use and problem use. However, it is unclear to what extent the effects of conduct problems and peer behavior interact, and whether adolescents' capacity to refuse the offer of substances may moderate such links. This study was conducted to examine relationships between conduct problems, close friends' substance use, and refusal assertiveness with adolescents' alcohol use problems, tobacco, and marijuana use. Methods We studied a population-based sample of 1,237 individuals from the Cardiff Study of All Wales and North West of England Twins aged 11–18 years. Adolescent and mother-reported information was obtained. Statistical analyses included cross-sectional and prospective logistic regression models and family-based permutations. Results Conduct problems and close friends' substance use were associated with increased adolescents' substance use, whereas refusal assertiveness was associated with lower use of cigarettes, alcohol, and marijuana. Peer substance use moderated the relationship between conduct problems and alcohol use problems, such that conduct problems were only related to increased risk for alcohol use problems in the presence of substance-using friends. This effect was found in both cross-sectional and prospective analyses and confirmed using the permutation approach. Conclusions Reduced opportunities for interaction with alcohol-using peers may lower the risk of alcohol use problems in adolescents with conduct problems. PMID:20547290

Alternative Models of Service, Centralized Braille Operations. Phase II Report. Volume I.

ERIC Educational Resources Information Center

Technology Management Corp., Alexandria, VA.

A study was conducted to determine if the centralization of braille operations for the national free library program would be feasible, economical, and desirable. This report presents the findings of the study in three sections. Section 1 provides background information, a summary of the first phase of operations, and the study objective for phase…

Medical Students' Attitudes towards Peer Physical Examination: Findings from an International Cross-Sectional and Longitudinal Study

ERIC Educational Resources Information Center

Rees, Charlotte E.; Wearn, Andy M.; Vnuk, Anna K.; Sato, Toshio J.

2009-01-01

Although studies have begun to shed light on medical students' attitudes towards peer physical examination (PPE), they have been conducted at single sites, and have generally not examined changes in medical students' attitudes over time. Employing both cross-sectional and longitudinal designs, the current study examines medical students' attitudes…

Osteoporosis Knowledge and Attitudes: A Cross-Sectional Study among College-Age Students

ERIC Educational Resources Information Center

Ford, M. Allison; Bass, Martha A.; Keathley, Roseanne

2007-01-01

Objective: The authors' purpose in this study was to investigate the influence of knowledge of osteoporosis, attitudes regarding osteoporosis, and knowledge of dietary calcium on dairy product intake in both male and female college-age students. Participants: The authors conducted this cross-sectional study on 911 men and women enrolled in 2…

Attitudes toward the Elderly among Students of Health Care Related Studies at the University of Salamanca, Spain

ERIC Educational Resources Information Center

Bernardini Zambrini, Diego A.; Moraru, Manuela; Hanna, Minna; Kalache, Alex; Macias Nunez, Juan F.

2008-01-01

Introduction: This study uses a cross-sectional approach in terms of evaluating attitudes toward the elderly among health sciences students. The aim of this study was to measure attitudes among final year pregraduate students of seven health care careers. Method: A cross-sectional study was conducted with final year students of medicine (M),…

Highway work zone capacity estimation using field data from Kansas.

DOT National Transportation Integrated Search

2015-02-01

Although extensive research has been conducted on urban freeway capacity estimation methods, minimal research has been : carried out for rural highway sections, especially sections within work zones. This study attempted to fill that void for rural :...

Final report on forensic study for section 390101 of Ohio SHRP U.S. 23 test pavement.

DOT National Transportation Integrated Search

1988-02-01

The forensic study for Section 390101 of the Ohio-SHRP U.S. 23 Test Road was conducted : from July 8 to 10, 1997. The main objective of the investigation was to obtain critical data relevant : to the performance and cause of excessive rutting at a li...

Federal Programs Supporting Educational Change, Vol. VIII: Implementing and Sustaining Innovations.

ERIC Educational Resources Information Center

Berman, Paul; McLaughlin, Milbrey Wallin

This report reviews and synthesizes the findings of a four year, two-phase study conducted by the Rand Corporation to examine and evaluate a national sample of educational innovations funded by Federal programs. Section I of this document provides background information and descriptions of the study. Section II discusses Rand's research approach…

Force, Surface Pressure, and Flowfield Measurements on a Slender Missile Configuration with Square Cross-Section at Supersonic Speeds

NASA Technical Reports Server (NTRS)

Wilcox, Floyd J., Jr.; Birch, Trevor J.; Allen, Jerry M.

2004-01-01

A wind-tunnel investigation of a square cross-section missile configuration has been conducted to obtain force and moment measurements, surface pressure measurements, and vapor screen flow visualization photographs for comparison with computational fluid dynamics studies conducted under the auspices of The Technical Cooperation Program (TTCP). Tests were conducted on three configurations which included: (1) body alone, (2) body plus tail fins mounted on the missile corners, and (3) body plus tail fins mounted on the missile side. This test was conducted in test section #2 of the NASA Langley Unitary Plan Wind Tunnel at Mach numbers of 2.50 and 4.50 and at a Reynolds number of 4 million per ft. The data were obtained over an angle of attack range from -4 deg. to 24 deg. and roll angles from 0 deg. to 45 deg., i.e., from a diamond shape (as viewed from the rear) at a roll angle of 0 deg. to a square shape at 45 deg.

43 CFR 404.47 - How will a feasibility study be conducted under this program?

Code of Federal Regulations, 2010 CFR

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false How will a feasibility study be conducted under this program? 404.47 Section 404.47 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR RECLAMATION RURAL WATER SUPPLY PROGRAM Feasibility...

76 FR 27091 - Section 302 Report

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-10

... LIBRARY OF CONGRESS Copyright Office [Docket No. RM 2010-10] Section 302 Report AGENCY: Copyright... prepare a report addressing possible mechanisms, methods, and recommendations for phasing out the... to conduct studies and report findings to Congress on different structural and regulatory aspects of...

Satellite Power Systems (SPS) concept definition study, exhibit C. Volume 2, part 1: System engineering

NASA Technical Reports Server (NTRS)

Hanley, G. M.

1979-01-01

Volume 2, Part 1, of a seven volume report is presented. Part 1 encompasses Satellite Power Systems (SPS) systems engineering aspects and is divided into three sections. The first section presents descriptions of the various candidate concepts considered and conclusions and recommendations for a preferred concept. The second section presents a summary of results of the various trade studies and analysis conducted during the course of the study. The third section describes the Photovoltaic Satellite Based Satellite Power System (SPS) Point Design as it was defined through studies performed during the period January 1977 through March 1979.

Electrodynamic Tether

NASA Technical Reports Server (NTRS)

Johnson, Charles L. (Inventor); Ballance, Judy L. (Inventor); Welzyn, Kenneth J. (Inventor); Vaughn, Jason A. (Inventor); Lorenzini, Enrico (Inventor); Schuler, Peter S. (Inventor)

2006-01-01

A tether system for providing thrust to or power subsystems of an artificial satellite in a low earth orbit. The tether has three main sections, an insulated section connected to the satellite, a conducting section connected to the insulating section for drawing in and releasing electrons from the space plasma and a non-conducting section for providing a tension to the other sections of the tether. An oxygen resistant coating is applied to the bare wire of the conducting section as well as the insulated wires of the insulated section that prevents breakdown during tether operations in the space plasma. The insulated and bare wire sections also surround a high tensile flexible polymer core to prevent any debris from breaking the tether during use.

Learning from graphically integrated 2D and 3D representations improves retention of neuroanatomy

NASA Astrophysics Data System (ADS)

Naaz, Farah

Visualizations in the form of computer-based learning environments are highly encouraged in science education, especially for teaching spatial material. Some spatial material, such as sectional neuroanatomy, is very challenging to learn. It involves learning the two dimensional (2D) representations that are sampled from the three dimensional (3D) object. In this study, a computer-based learning environment was used to explore the hypothesis that learning sectional neuroanatomy from a graphically integrated 2D and 3D representation will lead to better learning outcomes than learning from a sequential presentation. The integrated representation explicitly demonstrates the 2D-3D transformation and should lead to effective learning. This study was conducted using a computer graphical model of the human brain. There were two learning groups: Whole then Sections, and Integrated 2D3D. Both groups learned whole anatomy (3D neuroanatomy) before learning sectional anatomy (2D neuroanatomy). The Whole then Sections group then learned sectional anatomy using 2D representations only. The Integrated 2D3D group learned sectional anatomy from a graphically integrated 3D and 2D model. A set of tests for generalization of knowledge to interpreting biomedical images was conducted immediately after learning was completed. The order of presentation of the tests of generalization of knowledge was counterbalanced across participants to explore a secondary hypothesis of the study: preparation for future learning. If the computer-based instruction programs used in this study are effective tools for teaching anatomy, the participants should continue learning neuroanatomy with exposure to new representations. A test of long-term retention of sectional anatomy was conducted 4-8 weeks after learning was completed. The Integrated 2D3D group was better than the Whole then Sections group in retaining knowledge of difficult instances of sectional anatomy after the retention interval. The benefit of learning from an integrated 2D3D representation suggests that there are some spatial transformations which are better retained if they are learned through an explicit demonstration. Participants also showed evidence of continued learning on the tests of generalization with the help of cues and practice, even without feedback. This finding suggests that the computer-based learning programs used in this study were good tools for instruction of neuroanatomy.

76 FR 20373 - Section 302 Report

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-12

... LIBRARY OF CONGRESS Copyright Office [Docket No. RM 2010-10] Section 302 Report AGENCY: Copyright... directed the Copyright Office (``Office'') to prepare a report addressing possible mechanisms, methods, and... Office, the Government Accountability Office (``GAO'') and the FCC to conduct studies and report findings...

The moderating role of close friends in the relationship between conduct problems and adolescent substance use.

PubMed

Glaser, Beate; Shelton, Katherine H; van den Bree, Marianne B M

2010-07-01

Conduct problems and peer effects are among the strongest risk factors for adolescent substance use and problem use. However, it is unclear to what extent the effects of conduct problems and peer behavior interact, and whether adolescents' capacity to refuse the offer of substances may moderate such links. This study was conducted to examine relationships between conduct problems, close friends' substance use, and refusal assertiveness with adolescents' alcohol use problems, tobacco, and marijuana use. We studied a population-based sample of 1,237 individuals from the Cardiff Study of All Wales and North West of England Twins aged 11-18 years. Adolescent and mother-reported information was obtained. Statistical analyses included cross-sectional and prospective logistic regression models and family-based permutations. Conduct problems and close friends' substance use were associated with increased adolescents' substance use, whereas refusal assertiveness was associated with lower use of cigarettes, alcohol, and marijuana. Peer substance use moderated the relationship between conduct problems and alcohol use problems, such that conduct problems were only related to increased risk for alcohol use problems in the presence of substance-using friends. This effect was found in both cross-sectional and prospective analyses and confirmed using the permutation approach. Reduced opportunities for interaction with alcohol-using peers may lower the risk of alcohol use problems in adolescents with conduct problems. Copyright (c) 2010 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.

Influence of the Visual Attention Span on Child Reading Performance: A Cross-Sectional Study

ERIC Educational Resources Information Center

Bosse, Marie-Line; Valdois, Sylviane

2009-01-01

The visual attention (VA) span deficit hypothesis was found successfully to account for variability in developmental dyslexia (Bosse, Tainturier & Valdois, 2007). We conducted a cross-sectional study on 417 typically developing children from first, third and fifth grades examining the role of VA span on the development of reading skills. A battery…

75 FR 37794 - Science Advisory Board Staff Office; Notification of a Public Teleconference of the Air Quality...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-30

... the Second Section 812 Prospective Benefit-Cost Study of the Clean Air Act. DATES: The AQMS will... particulate matter (PM 2.5 ) emissions and air quality changes for the Second Section 812 Benefit-Cost... Clean Air Act Amendments (CAAA), EPA conducts periodic studies to assess benefits and costs of programs...

Medication Use among Australian Adults with Intellectual Disability in Primary Healthcare Settings: A Cross-Sectional Study

ERIC Educational Resources Information Center

Doan, Tan N.; Lennox, Nicholas G.; Taylor-Gomez, Miriam; Ware, Robert S.

2013-01-01

Background: There is concern about widespread medication use by people with intellectual disability (ID), especially psychotropic and anticonvulsant agents. However, there is sparse information on prescribing patterns in Australia. Method: This cross-sectional study was conducted between 2000 and 2002 among adults with ID who live in the community…

Cross-Sectional Evaluation of Distance Education Students' Learning Styles and Critical Thinking Dispositions in Turkey

ERIC Educational Resources Information Center

Yüksel, Ismail; Türkses, Ercüment

2015-01-01

This study aims to examine distance education students' learning styles and critical thinking dispositions. This cross sectional survey was conducted on 114 Turkish distance education students from various departments in a state university. The data of the study were collected through Grasha-Riechmann Student Learning Style Scale (GRSLSS) and…

Awareness about Autism among School Teachers in Oman: A Cross-Sectional Study

ERIC Educational Resources Information Center

Al-Sharbati, Marwan M.; Al-Farsi, Yahya M.; Ouhtit, Allal; Waly, Mostafa I.; Al-Shafaee, Mohamed; Al-Farsi, Omar; Al-Khaduri, Maha; Al-Said, Mona F.; Al-Adawi, Samir

2015-01-01

Children with special needs such as those with autism spectrum disorder have been recorded as ostracized and stigmatized in many parts of the world. Little is known about whether such negative views are present among mainstream teachers in Oman. A cross-sectional study was conducted to evaluate school teachers' awareness about autism spectrum…

Ground resistivity method and DCIP2D forward and inversion modelling to identify alteration at the Midwest uranium deposit, northern Saskatchewan, Canada

NASA Astrophysics Data System (ADS)

Long, Samuel R. M.; Smith, Richard S.; Hearst, Robert B.

2017-06-01

Resistivity methods are commonly used in mineral exploration to map lithology, structure, sulphides and alteration. In the Athabasca Basin, resistivity methods are used to detect alteration associated with uranium. At the Midwest deposit, there is an alteration zone in the Athabasca sandstones that is above a uraniferous conductive graphitic fault in the basement and below a conductive lake at surface. Previous geophysical work in this area has yielded resistivity sections that we feel are ambiguous in the area where the alteration is expected. Resolve® and TEMPEST sections yield an indistinct alteration zone, while two-dimensional (2D) inversions of the ground resistivity data show an equivocal smeared conductive feature in the expected location between the conductive graphite and the conductive lake. Forward modelling alone cannot identify features in the pseudosections that are clearly associated with alteration, as the section is dominated by the feature associated with the near-surface conductive lake; inverse modelling alone produces sections that are smeared and equivocal. We advocate an approach that uses a combination of forward and inverse modelling. We generate a forward model from a synthetic geoelectric section; this forward data is then inverse modelled and compared with the inverse model generated from the field data using the same inversion parameters. The synthetic geoelectric section is then adjusted until the synthetic inverse model closely matches the field inverse model. We found that this modelling process required a conductive alteration zone in the sandstone above the graphite, as removing the alteration zone from the sandstone created an inverse section very dissimilar to the inverse section derived from the field data. We therefore conclude that the resistivity method is able to identify conductive alteration at Midwest even though it is below a conductive lake and above a conductive graphitic fault. We also concluded that resistivity inversions suggest a conductive paleoweathering surface on the top of the basement rocks at the basin/basement unconformity.

FINAL REPORT ON HEAD START EVALUATION AND RESEARCH--1966-67 TO THE INSTITUTE FOR EDUCATIONAL DEVELOPMENT. SECTION VII, SENSORY AND PERCEPTUAL STUDIES.

ERIC Educational Resources Information Center

HOLMES, DAVID S.; AND OTHERS

THREE STUDIES OF PRESCHOOL CHILDREN ARE INCLUDED IN THIS EVALUATION REPORT. (1) "'NEURAL CONDUCTIVITY' AND ACHIEVEMENT IN CULTURALLY DEPRIVED STUDENTS." NEURAL CONDUCTIVITY WAS INFERRED FROM A CORRELATION BETWEEN PUPILLARY RESPONSE AND CHILDREN'S PRESCHOOL PERFORMANCE. COMPLICATIONS IN ACQUIRING AND USING THE NECESSARY EQUIPMENT RESULTED…

A Cross-Sectional Analysis of the Importance of Agricultural Mechanics Skills Taught

ERIC Educational Resources Information Center

Rasty, John R.; Anderson, Ryan G.

2014-01-01

In 1994, Laird conducted a study using secondary agricultural education teachers across the United States to determine the depth agricultural mechanics skills were being taught at the time, and how important those skills would be in 2004. The researchers conducted a follow up study in 2016, using secondary agricultural education teachers in Iowa…

Risk Perceptions, Barriers, and Self-Efficacy of Hepatitis B Screening and Vaccination among Chinese Immigrants

ERIC Educational Resources Information Center

Ma, Grace X.; Shive, Steven S.; Toubbeh, Jamil; Wu, Dunli; Wang, Ping

2006-01-01

Hepatitis B (HBV) infection is a serious health problem among Asian Americans, including Chinese Americans. This study was conducted to measure the perceptions of risk, barriers, and self-efficacy of HBV screening and vaccination in Chinese immigrants. A cross-sectional study was conducted among 429 Chinese Americans in New York City. A…

26 CFR 301.6103(l)(2)-1 - Disclosure of returns and return information to Pension Benefit Guaranty Corporation for purposes...

Code of Federal Regulations, 2011 CFR

2011-04-01

... Pension Benefit Guaranty Corporation for purposes of research and studies. 301.6103(l)(2)-1 Section 301... purposes of research and studies. (a) General rule. Pursuant to the provisions of section 6103(l)(2) of the... only to the extent necessary in, conducting research and studies authorized by title IV of the Employee...

26 CFR 301.6103(l)(2)-1 - Disclosure of returns and return information to Pension Benefit Guaranty Corporation for purposes...

Code of Federal Regulations, 2010 CFR

2010-04-01

... Pension Benefit Guaranty Corporation for purposes of research and studies. 301.6103(l)(2)-1 Section 301... purposes of research and studies. (a) General rule. Pursuant to the provisions of section 6103(l)(2) of the... only to the extent necessary in, conducting research and studies authorized by title IV of the Employee...

Experimental Investigation on Strengthening of Bolted Connections in Transmission/Communication Towers

NASA Astrophysics Data System (ADS)

Balagopal, R.; Prasad Rao, N.; Rokade, R. P.; Umesha, P. K.

2018-06-01

Due to increase in demand for power supply and increase in bandwidth for communication industry, the existing transmission line (TL) and communication towers needs to be strengthened. The strengthening of existing tower is economical rather than installation of new towers due to constraints in acquisition of land. The size of conductors have to be increased or additional number of antenna needs to be installed in existing TL/communication tower respectively. The compression and tension capacity of members in the existing towers have to be increased to sustain the additional loads due to wind and self-weight of these components. The tension capacity enhancement of existing angle sections in live line condition without power shut-down is a challenging task. In the present study, the use of Glass Fiber Reinforced Plastic (GFRP) plate/angle sections is explored to strengthen existing bolted connections in TL/communication towers. Experimental investigation conducted at component level on strengthening of existing two types of single cover steel butt joint, one made of steel plate and another joint made of steel angle sections respectively. First series of experiment conducted on strengthening the connection using GFRP plate/cleat angle sections. The second series of strengthening experiment is conducted using steel plate/angle sections to replace GFRP sections. The load sharing behaviour of strengthened GFRP and steel section is compared and suitable recommendations are given.

Experimental Investigation on Strengthening of Bolted Connections in Transmission/Communication Towers

NASA Astrophysics Data System (ADS)

Balagopal, R.; Prasad Rao, N.; Rokade, R. P.; Umesha, P. K.

2018-02-01

Due to increase in demand for power supply and increase in bandwidth for communication industry, the existing transmission line (TL) and communication towers needs to be strengthened. The strengthening of existing tower is economical rather than installation of new towers due to constraints in acquisition of land. The size of conductors have to be increased or additional number of antenna needs to be installed in existing TL/communication tower respectively. The compression and tension capacity of members in the existing towers have to be increased to sustain the additional loads due to wind and self-weight of these components. The tension capacity enhancement of existing angle sections in live line condition without power shut-down is a challenging task. In the present study, the use of Glass Fiber Reinforced Plastic (GFRP) plate/angle sections is explored to strengthen existing bolted connections in TL/communication towers. Experimental investigation conducted at component level on strengthening of existing two types of single cover steel butt joint, one made of steel plate and another joint made of steel angle sections respectively. First series of experiment conducted on strengthening the connection using GFRP plate/cleat angle sections. The second series of strengthening experiment is conducted using steel plate/angle sections to replace GFRP sections. The load sharing behaviour of strengthened GFRP and steel section is compared and suitable recommendations are given.

Heat conduction in double-walled carbon nanotubes with intertube additional carbon atoms.

PubMed

Cui, Liu; Feng, Yanhui; Tan, Peng; Zhang, Xinxin

2015-07-07

Heat conduction of double-walled carbon nanotubes (DWCNTs) with intertube additional carbon atoms was investigated for the first time using a molecular dynamics method. By analyzing the phonon vibrational density of states (VDOS), we revealed that the intertube additional atoms weak the heat conduction along the tube axis. Moreover, the phonon participation ratio (PR) demonstrates that the heat transfer in DWCNTs is dominated by low frequency modes. The added atoms cause the mode weight factor (MWF) of the outer tube to decrease and that of the inner tube to increase, which implies a lower thermal conductivity. The effects of temperature, tube length, and the number and distribution of added atoms were studied. Furthermore, an orthogonal array testing strategy was designed to identify the most important structural factor. It is indicated that the tendencies of thermal conductivity of DWCNTs with added atoms change with temperature and length are similar to bare ones. In addition, thermal conductivity decreases with the increasing number of added atoms, more evidently for atom addition concentrated at some cross-sections rather than uniform addition along the tube length. Simultaneously, the number of added atoms at each cross-section has a considerably more remarkable impact, compared to the tube length and the density of chosen cross-sections to add atoms.

32 CFR 202.9 - Conducting RAB meetings.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 32 National Defense 2 2014-07-01 2014-07-01 false Conducting RAB meetings. 202.9 Section 202.9 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED... Administrative Record. (2) The records, reports, minutes, appendixes, working papers, drafts, studies, agenda, or...

32 CFR 202.9 - Conducting RAB meetings.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 32 National Defense 2 2012-07-01 2012-07-01 false Conducting RAB meetings. 202.9 Section 202.9 National Defense Department of Defense (Continued) OFFICE OF THE SECRETARY OF DEFENSE (CONTINUED... Administrative Record. (2) The records, reports, minutes, appendixes, working papers, drafts, studies, agenda, or...

Impacts of Music on Sectional View Drawing Ability for Engineering Technology Students as Measured through Technical Drawings

ERIC Educational Resources Information Center

Katsioloudis, Petros; Jones, Mildred; Jovanovic, Vukica

2016-01-01

Results from a number of studies indicate that the use of different types of music can influence cognition and behavior; however, research provides inconsistent results. Considering this, a quasi-experimental study was conducted to identify the existence of statistically significant effects on sectional view drawing ability due to the impacts of…

Alcohol Consumption among University Students in North Rhine-Westphalia, Germany--Results from a Multicenter Cross-Sectional Study

ERIC Educational Resources Information Center

Akmatov, Manas K.; Mikolajczyk, Rafael T.; Meier, Sabine; Kramer, Alexander

2011-01-01

Objective: To assess alcohol use and problem drinking among university students in the German Federal State of North Rhine-Westphalia (NRW) and to examine the associated factors. Method: A multicenter cross-sectional study was conducted in 16 universities in 2006-2007 in NRW by a standardized questionnaire and 3,306 students provided information…

Analysis of deep seismic reflection and other data from the southern Washington Cascades

NASA Astrophysics Data System (ADS)

Stanley, W. D.; Johnson, S. Y.

Limited possibilities exist for new hydrocarbon exploration regimes in the Pacific Northwest. Extensive geophysical studies have been used to outline a proposed sedimentary basin hidden beneath volcanic rocks of the Cascades region of southwestern Washington (Stanley et. al, 1992, AAPG Bull. 76, 1569-1585). Electrical geophysical imaging using the magnetotelluric (MT) method first detected thick, electrically conductive sequences believed to represent late Cretaceous to Oligocene marine sedimentary rocks. The conductive section occurs at depths from about 1 km to 10 km in the area west of a line between Mt. Rainier and Mt. Adams, extending westward to a line between Mt. St. Helens and just west of Morton, WA. The conductive rocks reaches thicknesses as great as 10 km. The anomalous rocks appear to be very near the surface in the axis of anticanes that bring Eocene marine shales to shallow depths. Careful consideration of physical properties and the correspondence of the morphology of the units to known fold sets suggests that the high conductivities are related to lithologic/stratigraphic units rather than to variations in physical properties. Our preference for the lithology of the anomalous section, based upon a study of regional geology and structure, is one dominated by marine shales of Eocene and older age. Other possible lithologies that have been evaluated for the conductive section include nonmarine sedimentary units of Tertiary age, highly altered volcanic flows, and pre-Tertiary metasedimentary rocks with large percentages of graphite. We refer to this anomalously conductive region as the southern Washington Cascades conductor (SWCC).

43 CFR 404.18 - How can I request assistance to conduct a feasibility study?

Code of Federal Regulations, 2010 CFR

2010-10-01

... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false How can I request assistance to conduct a feasibility study? 404.18 Section 404.18 Public Lands: Interior Regulations Relating to Public Lands BUREAU OF RECLAMATION, DEPARTMENT OF THE INTERIOR RECLAMATION RURAL WATER SUPPLY PROGRAM Overview § 404.18 How can I...

Tank Level Detection Devices for the Carriage of Oil : Oil Pollution Act of 1990, Section 4110

DOT National Transportation Integrated Search

1992-12-29

This study was conducted to assess the technical feasibility of satisfying the requirements of Section 4110 of the Oil Pollution Act of 1990 (OPA 90), which calls for minimum regulatory standards tank level monitoring devices in teh cargo tanks of ta...

Safety belt usage among drivers. Use of child restraint devices, passenger safety belts and position of passengers in cars. Motorcycle helmet usage.

DOT National Transportation Integrated Search

1980-05-01

This report presents findings from three observation studies conducted by Opinion Research Corporation under a contract with the National Highway Traffic Safety Administration. The report is organized into three sections. Each section includes the fo...

Analysis of FMCSA's revised civil penalties (1995-2006) : a follow-up study

DOT National Transportation Integrated Search

2009-08-31

This final report updates the results of a July 2004 report that was prepared in response to Section 222(d) of the Motor Carrier Safety Improvement Act of 1999 (MCSIA). Section 222(d) of the Act required the Secretary of Transportation to conduct a s...

The Effects of Feedback on Online Quizzes

ERIC Educational Resources Information Center

Butler, Melanie; Pyzdrowski, Laura; Goodykoontz, Adam; Walker, Vennessa

2008-01-01

Online homework is unable to provide the detailed feedback of paper and pencil assignments. However, immediate feedback is an advantage that online assessments provide. A research study was conducted that focused on the effects of immediate feedback; students in 5 sections of a Pre-calculus course were participants. Three sections were randomly…

Correlates of self-efficacy for disease management in adolescent/young adult cancer survivors: A systematic review.

PubMed

Herts, Kate L; Khaled, Mona M; Stanton, Annette L

2017-03-01

The primary objective of this review was to summarize the literature regarding factors associated with self-efficacy for disease management (SEDM) in cross-sectional studies and the efficacy/effectiveness of psychosocial interventions that are designed to improve SEDM in adolescent and young adult (AYA) cancer survivors. The secondary aim was to assess the quality of included studies. We conducted a systematic review using PsycINFO and PubMed to identify studies for review. Eligible studies were conducted in AYA cancer survivors ages 15 to 39; included a measure of SEDM assessed as an outcome or in a cross-sectional analysis; and were published in a peer-reviewed, English-language journal. From the 2,910 records screened, 7 cross-sectional studies and 4 intervention studies met criteria for inclusion. Eleven of the 12 SEDM measures in the studies were author-constructed, limiting the ability to draw conclusions across studies. All cross-sectional studies met at least 21 of 26 relevant quality assessment criteria, and intervention studies met between 4 and 11 of 14 criteria. Cross-sectional findings indicate that SEDM is positively associated with health-promoting behaviors and inversely related to physical and mental health problems. The intervention studies demonstrated that behavioral and educational interventions have the potential to increase SEDM. Directions for research include the need for validated measures of SEDM for AYA cancer survivors, as well as interventions that target both the health care team's and the patient's role in promoting SEDM. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Quarterly progress report for the Chemical and Energy Research Section of the Chemical Technology Division: July--September 1997

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

Jubin, R.T.

This report summarizes the major activities conducted in the Chemical and Energy Research Section of the Chemical Technology Division at Oak Ridge National Laboratory (ORNL) during the period July--September 1997. The section conducts basic and applied research and development in chemical engineering, applied chemistry, and bioprocessing, with an emphasis on energy-driven technologies and advanced chemical separations for nuclear and waste applications. The report describes the various tasks performed within nine major areas of research: Hot Cell Operations, Process Chemistry and Thermodynamics, Molten Salt Reactor Experiment (MSRE) Remediation Studies, Chemistry Research, Biotechnology, Separations and Materials Synthesis, Fluid Structure and Properties, Biotechnologymore » Research, and Molecular Studies. The name of a technical contact is included with each task described, and readers are encouraged to contact these individuals if they need additional information.« less

Methods for Chemical Analysis of Fresh Waters.

ERIC Educational Resources Information Center

Golterman, H. L.

This manual, one of a series prepared for the guidance of research workers conducting studies as part of the International Biological Programme, contains recommended methods for the analysis of fresh water. The techniques are grouped in the following major sections: Sample Taking and Storage; Conductivity, pH, Oxidation-Reduction Potential,…

What do reviewers look for in an original research article?

PubMed

Shankar, P R

2012-01-01

In this article common errors committed by authors especially those, whose first language is not English, while writing an original research articleis described. Avoiding common errors and improving chances of publication has also been covered. This article may resemble instruction to the author. However, tips from reviewer's eyes has been given. The abstract is the section of the paper most commonly read and care should be taken while writing this section. Keywordsare usedto retrieve articles following searches and use of words from the MeSH database is recommended.The introduction describes work already conducted in the particular area and briefly mentions how the manuscript will add to the existing knowledge.The methods section describes how the study was conducted, is written in the past tense and is often the first part of the paper to be written. The results describe what was found in the study and is usually written after the methods section.The discussion compares the study with the literature and helps to put the study findings in context. The conclusions should be based on the results of the study. The references should be written strictly according to the journal format. Language should be simple, active voice should be used and jargon avoided. Avoid directly quoting from reference articles and paraphrase these in your own words to avoid plagiarism.

Indications and determinants of caesarean section delivery: Evidence from a population-based study in Matlab, Bangladesh.

PubMed

Begum, Tahmina; Rahman, Aminur; Nababan, Herfina; Hoque, Dewan Md Emdadul; Khan, Al Fazal; Ali, Taslim; Anwar, Iqbal

2017-01-01

Caesarean section (C-section) is a major obstetric intervention for saving lives of women and their newborns from pregnancy and childbirth related complications. Un-necessary C-sections may have adverse impact upon maternal and neonatal outcomes. In Bangladesh there is paucity of data on clinical indication of C-section at population level. We conducted a retrospective study in icddr,b Health and Demographic Surveillance System (HDSS) area of Matlab to look into the indications and determinants of C-sections. All resident women in HDSS service area who gave birth in 2013 with a known birth outcome, were included in the study. Women who underwent C-section were identified from birth and pregnancy files of HDSS and their indication for C-section were collected reviewing health facility records where the procedure took place, supplemented by face-to-face interview of mothers where data were missing. Indications of C-section were presented as frequency distribution and further divided into different groups following 3 distinct classification systems. Socio-demographic predictors were explored following statistical method of binary logistic regression. During 2013, facility delivery rate was 84% and population based C-section rate was 35% of all deliveries in icddr,b service area. Of all C-sections, only 1.4% was conducted for Absolute Maternal Indications (AMIs). Major indications of C-sections included: repeat C-section (24%), foetal distress (21%), prolonged labour (16%), oligohydramnios (14%) and post-maturity (13%). More than 80% C-sections were performed in for-profit private facilities. Probability of C-section delivery increased with improved socio-economic status, higher education, lower birth order, higher age, and with more number of Antenatal Care use and presence of bad obstetric history. Eight maternal deaths occurred, of which five were delivered by C-section. C-section rate in this area was much higher than national average as well as global recommendations. Very few of C-sections were undertaken for AMIs. Routine monitoring of clinical indication of C-section in public and private facilities is needed to ensure rational use of the procedure.

Indications and determinants of caesarean section delivery: Evidence from a population-based study in Matlab, Bangladesh

PubMed Central

Begum, Tahmina; Nababan, Herfina; Hoque, Dewan Md. Emdadul; Khan, Al Fazal; Ali, Taslim; Anwar, Iqbal

2017-01-01

Background and methods Caesarean section (C-section) is a major obstetric intervention for saving lives of women and their newborns from pregnancy and childbirth related complications. Un-necessary C-sections may have adverse impact upon maternal and neonatal outcomes. In Bangladesh there is paucity of data on clinical indication of C-section at population level. We conducted a retrospective study in icddr,b Health and Demographic Surveillance System (HDSS) area of Matlab to look into the indications and determinants of C-sections. All resident women in HDSS service area who gave birth in 2013 with a known birth outcome, were included in the study. Women who underwent C-section were identified from birth and pregnancy files of HDSS and their indication for C-section were collected reviewing health facility records where the procedure took place, supplemented by face-to-face interview of mothers where data were missing. Indications of C-section were presented as frequency distribution and further divided into different groups following 3 distinct classification systems. Socio-demographic predictors were explored following statistical method of binary logistic regression. Findings During 2013, facility delivery rate was 84% and population based C-section rate was 35% of all deliveries in icddr,b service area. Of all C-sections, only 1.4% was conducted for Absolute Maternal Indications (AMIs). Major indications of C-sections included: repeat C-section (24%), foetal distress (21%), prolonged labour (16%), oligohydramnios (14%) and post-maturity (13%). More than 80% C-sections were performed in for-profit private facilities. Probability of C-section delivery increased with improved socio-economic status, higher education, lower birth order, higher age, and with more number of Antenatal Care use and presence of bad obstetric history. Eight maternal deaths occurred, of which five were delivered by C-section. Conclusions C-section rate in this area was much higher than national average as well as global recommendations. Very few of C-sections were undertaken for AMIs. Routine monitoring of clinical indication of C-section in public and private facilities is needed to ensure rational use of the procedure. PMID:29155840

26 CFR 31.3306(n)-1 - Services on American vessel whose business is conducted by general agent of Secretary of Commerce.

Code of Federal Regulations, 2014 CFR

2014-04-01

... conducted by general agent of Secretary of Commerce. 31.3306(n)-1 Section 31.3306(n)-1 Internal Revenue... conducted by general agent of Secretary of Commerce. (a) Section 3306(n) and this section of the regulations... by a general agent of the Secretary of Commerce. Whether services performed by such an officer or...

26 CFR 31.3306(n)-1 - Services on American vessel whose business is conducted by general agent of Secretary of Commerce.

Code of Federal Regulations, 2013 CFR

2013-04-01

... conducted by general agent of Secretary of Commerce. 31.3306(n)-1 Section 31.3306(n)-1 Internal Revenue... conducted by general agent of Secretary of Commerce. (a) Section 3306(n) and this section of the regulations... by a general agent of the Secretary of Commerce. Whether services performed by such an officer or...

26 CFR 31.3306(n)-1 - Services on American vessel whose business is conducted by general agent of Secretary of Commerce.

Code of Federal Regulations, 2012 CFR

2012-04-01

... conducted by general agent of Secretary of Commerce. 31.3306(n)-1 Section 31.3306(n)-1 Internal Revenue... conducted by general agent of Secretary of Commerce. (a) Section 3306(n) and this section of the regulations... by a general agent of the Secretary of Commerce. Whether services performed by such an officer or...

Studies of the dependence of the microwave radar cross section on ocean surface variables during the FASINEX experiment

NASA Technical Reports Server (NTRS)

Weissman, D. A.; Li, Fuk

1988-01-01

The ability of theoretical radar cross section (RCS) models to predict the absolute magnitude of the ocean radar cross section under a wide variety of sea and atmospheric conditions was studied using experimental data from the FASINEX Experiment. This consists of RCS data from a Ku-band scatterometer mounted on an aircraft (10 separate flights were conducted), a wide variety of atmospheric measurements (including stress) and sea conditions. Theoretical models are tested. Where discrepancies are observed, revisions are hypothesized and evaluated.

Studies of the dependence of the microwave radar cross section on ocean surface variables during the FASINEX experiment

NASA Astrophysics Data System (ADS)

Weissman, D. A.; Li, Fuk

1988-08-01

The ability of theoretical radar cross section (RCS) models to predict the absolute magnitude of the ocean radar cross section under a wide variety of sea and atmospheric conditions was studied using experimental data from the FASINEX Experiment. This consists of RCS data from a Ku-band scatterometer mounted on an aircraft (10 separate flights were conducted), a wide variety of atmospheric measurements (including stress) and sea conditions. Theoretical models are tested. Where discrepancies are observed, revisions are hypothesized and evaluated.

Interpersonal Skills and Facebook® Use among College Students

ERIC Educational Resources Information Center

Rhodes, Darson L.; Sniatecki, Jessica L.; Rocco, Mary; Todd, Lauren

2015-01-01

The use of Facebook® among college students is prevalent, and its relationship with interpersonal skills is unknown. A cross-sectional design study using a convenience sample of undergraduate students enrolled in one of four sections of an upper-level nutrition course at a Northeastern, public university was conducted to investigate this…

Identification of Factors for Selecting Modes and Routes for Shipping High-Level Radioactive Waste and Spent Nuclear Fuel

DOT National Transportation Integrated Search

1998-04-01

Section 15 of the Hazardous Materials Transportation Uniform Safety Act of 1990 (see 49 U.S.C. Section 5105(d)(1994)) requires the U.S. Department of Transportation (DOT) to conduct a study: "To decide which safety factors, if any, shippers and carri...

Undergraduate ESL Students' Difficulties in Writing the Introduction for Research Reports

ERIC Educational Resources Information Center

Maznun, Mirrah Diyana Binti; Monsefi, Roya; Nimehchisalem, Vahid

2017-01-01

This study was conducted to investigate the difficulties encountered by undergraduate ESL students in writing the introduction section of their project reports. Five introduction sections of bachelor of arts students, majoring in English language, were analyzed and a lecturer was interviewed regarding the areas of the students' weaknesses. Swales'…

Linking Class and Community: An Investigation of Service Learning

ERIC Educational Resources Information Center

Fleck, Bethany; Hussey, Heather D.; Rutledge-Ellison, Lily

2017-01-01

This study contributes to the service learning (SL) literature by providing new empirical evidence of learning from a problem-based SL research project conducted in a developmental research methods course. Two sections of the course taught in a traditional manner were compared to two sections of the course taught with an integrated SL project…

In vitro effect of carprofen and meloxicam on the conductance and permeability to mannitol and the histologic appearance of the gastric mucosa of dogs.

PubMed

Hicks, Merrin A; Hosgood, Giselle L; Morgan, Timothy W; Briere, Catherine A; McConnico, Rebecca S

2011-04-01

To evaluate the effects of carprofen and meloxicam on conductance and permeability to mannitol and on the histologic appearance of sections of canine gastric mucosa. Gastric mucosa from 6 mature mixed-breed dogs. Sections of gastric mucosa were mounted in Ussing chambers, and carprofen (40 or 400μg/mL [CAR40 and CAR400, respectively]), meloxicam (8 or 80μg/mL [MEL8 and MEL80, respectively]), or no drug (controls) was added to the bathing solution. For all sections, conductance was calculated every 15 minutes for 240 minutes and flux of mannitol was calculated for 3 consecutive 1-hour periods; histologic examination was performed after the experiment. The area under the conductance-time curve for each chamber was calculated. Values of conductance × time, flux of mannitol, and the frequency distribution of histologic findings were analyzed for treatment effects. For CAR400- and MEL80-treated sections, conductance X time was significantly higher than that for control and MEL8-treated sections. The effect of CAR40 treatment was not different from that of any other treatment. Over the three 1-hour periods, mannitol flux increased significantly in MEL80-, CAR40-, and CAR400-treated sections but not in MEL8- treated or control sections. Major histologic changes including epithelial cell sloughing were limited to the CAR400-treated sections. In the gastric mucosa of dogs, carprofen and meloxicam increased in vitro conductance and permeability to mannitol. At a concentration of 400 μg/mL, carprofen caused sloughing of epithelial cells. Carprofen and meloxicam appear to compromise gastric mucosal integrity and barrier function in dogs.

Guidelines for Conducting and Reporting Mixed Research in the Field of Counseling and beyond

ERIC Educational Resources Information Center

Leech, Nancy L.; Onwuegbuzie, Anthony J.

2010-01-01

This article provides guidelines for conducting, reporting, and evaluating mixed research studies in 3 sections: research formulation, research planning, and research implementation. To date, no such guidelines are available. Detailed descriptions of each subsection are included. The authors hope that these standards assist researchers from the…

40 CFR 799.3300 - Unsubstituted phenylenediamines.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) Acute flow-through studies on the freshwater invertebrate Gammarus shall be conducted with o-, m-, and p... aquatic invertebrates, the ratio of 24 hour/96 hour LC50s is greater than or equal to 2; for gammarids... section. Testing shall be conducted in accordance with § 797.1600 of this chapter. (B) An invertebrate...

26 CFR 31.3306(n)-1 - Services on American vessel whose business is conducted by general agent of Secretary of Commerce.

Code of Federal Regulations, 2011 CFR

2011-04-01

... conducted by general agent of Secretary of Commerce. 31.3306(n)-1 Section 31.3306(n)-1 Internal Revenue... (Chapter 23, Internal Revenue Code of 1954) § 31.3306(n)-1 Services on American vessel whose business is conducted by general agent of Secretary of Commerce. (a) Section 3306(n) and this section of the regulations...

26 CFR 31.3306(n)-1 - Services on American vessel whose business is conducted by general agent of Secretary of Commerce.

Code of Federal Regulations, 2010 CFR

2010-04-01

... conducted by general agent of Secretary of Commerce. 31.3306(n)-1 Section 31.3306(n)-1 Internal Revenue... (Chapter 23, Internal Revenue Code of 1954) § 31.3306(n)-1 Services on American vessel whose business is conducted by general agent of Secretary of Commerce. (a) Section 3306(n) and this section of the regulations...

A Cross-Sectional Study of Shared Attention by Children with Autism and Typically Developing Children in an Inclusive Preschool Setting

ERIC Educational Resources Information Center

Rice, Catherine E.; Adamson, Lauren B.; Winner, Ellen; McGee, Gail G.

2016-01-01

This study examined the ways in which young children with autism and typical children focus their engagement with objects and people (peers and adults) in an inclusive preschool setting. A cross-sectional analysis was conducted of 30 typical children and 30 children with autism, with 10 different children from each group at 3 different ages (2, 3,…

Determination of 200 °C Isothermal Section of Al-Ag-Ga Phase Diagram by Microanalysis, X-ray Diffraction, Hardness and Electrical Conductivity Measurements

NASA Astrophysics Data System (ADS)

Premović, Milena; Tomović, Milica; Minić, Duško; Manasijević, Dragan; Živković, Dragana; Ćosović, Vladan; Grković, Vladan; Đorđević, Aleksandar

2017-04-01

Ternary Al-Ag-Ga system at 200 °C was experimentally and thermodynamically assessed. Isothermal section was extrapolated using optimized thermodynamic parameters for constitutive binary systems. Microstructure and phase composition of the selected alloy samples were analyzed using light microscopy, scanning electron microscopy combined with energy-dispersive spectrometry and x-ray powder diffraction technique. The obtained experimental results were found to be in a close agreement with the predicted phase equilibria. Hardness and electrical conductivity of the alloy samples from four vertical sections Al-Ag80Ga20, Al-Ag60Ga40, Ag-Al80Ga20 and Ag-Al60Ga40 of the ternary Al-Ag-Ga system at 200 °C were experimentally determined using Brinell method and eddy current measurements. Additionally, hardness of the individual phases present in the microstructure of the studied alloy samples was determined using Vickers microhardness test. Based on experimentally obtained results, isolines of Brinell hardness and electrical conductivity were calculated for the alloys from isothermal section of the ternary Al-Ag-Ga system at 200 °C.

Occupational stress and subclinical atherosclerosis: a systematic review.

PubMed

Wilson, Mark D; Conroy, Lorraine M; Dorevitch, Samuel

2014-10-01

Stress is a common hazard in the work environment and is associated with multiple adverse health effects. The association between work-related stress (WRS) and cardiovascular disease has been established in a number of epidemiological studies. A systematic review was conducted according to the PRISMA statement of the English literature involving WRS and carotid artery intima media thickness (CIMT). Four cohorts and six cross-sectional studies of occupational stress and CIMT were identified. All cohorts and five of the cross-sectional studies reported a significant positive association, while one reported an inverse association of WRS and CIMT. The weight of the evidence that we were able to identify suggests that occupational stress results in an increased risk of atherosclerosis, assessed via CIMT. Studies that include longitudinal measures of stress and intermediate cardiac endpoints, with adequate accounting for confounders, are needed. Interventional studies should also be conducted to determine whether CIMT progression can be prevented with workplace stress reduction.

Comparison of a modified mid-coronal sectioning technique and Wilson's technique when conducting eye and brain examinations in rabbit teratology studies.

PubMed

Ziejewski, Mary K; Solomon, Howard M; Rendemonti, Joyce; Stanislaus, Dinesh

2015-02-01

There are two methods used when examining fetal rabbit eyes and brain in teratology studies. One method employs prior fixation before serial sectioning (Wilson's technique) and the other uses fresh tissue (mid-coronal sectioning). We modified the mid-coronal sectioning technique to include removal of eyes and brain for closer examination and to increase the number of structures that can be evaluated and compared it to the Wilson's technique. We found that external examination of the head, in conjunction with either sectioning method, is equally sensitive in identifying developmental defects. We evaluated 40,401 New Zealand White (NZW) and Dutch-Belted (DB) rabbit fetuses for external head alterations, of which 28,538 fetuses were further examined for eye and brain alterations using the modified mid-coronal sectioning method (16,675 fetuses) or Wilson's technique (11,863 fetuses). The fetuses were from vehicle control or drug-treated pregnant rabbits in embryo-fetal development studies conducted to meet international regulatory requirements for the development of new drugs. Both methods detected the more common alterations (microphthalmia and dilated lateral cerebral ventricles) and other less common findings (changes in size and/or shape of eye and brain structures). While both methods are equally sensitive at detecting common and rare developmental defects, the modified mid-coronal sectioning technique eliminates the use of chemicals and concomitant fixation artifacts that occur with the Wilson's technique and allows for examination of 100% intact fetuses thereby increasing potential for detecting eye and brain alterations as these findings occur infrequently in rabbits. © 2015 Wiley Periodicals, Inc.

Bituminous concrete overlay studies.

DOT National Transportation Integrated Search

1971-01-01

Deflection tests conducted on eight sections of primary highway, both before and after asphaltic concrete resurfacings, were analyzed as a study of the utility of such tests in the design of overlays. The application of tentative traffic and allowabl...

Environmental impact case study : Martinsville bypass.

DOT National Transportation Integrated Search

1971-01-01

At the request of the Environmental Quality Division, the Environmental and Economics Section of the Virginia Highway Research Council conducted an environmental impact study of the proposed Route 220 bypass around Martinsville. This evaluation of th...

Mixed convection in a horizontal rectangular channel - Experimental and numerical velocity distributions

NASA Technical Reports Server (NTRS)

Nyce, Thomas A.; Quazzani, Jalil; Durand-Daubin, Arnaud; Rosenberger, Franz

1992-01-01

Mixed convection in a rectangular channel (width/height = 2) with bottom-heated and top-cooled sections is studied by laser Doppler anemometry in nitrogen at Ra = 22,200 and Re = 18.75, 36, and 54. At the lower Re values, symmetry breaking is observed in steady but spatially oscillating flows that prevail over a certain distance from the leading edge of the differentially heated section. Further downstream, unsteady flows are found even for Re = 18.75. Numerical models are used to investigate the effects of adiabatic, conducting (with a conductive-convective heat transfer coefficient), and perfectly conducting side walls; channel tilts and Prandtl number dependence. Good agreement between calculations and experiment is obtained for longitudinal convective roll velocities. The transverse velocities are found to be independent of Re.

An Assessment of Energy-Related Career Paths of Senior Industrial Assessment Center Program Alumni

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

Martin, M.A.

2003-10-20

The purpose of this study was to assess the career paths of alumni from the U.S. Department of Energy's Industrial Assessment Center (IAC) program. IAC was originally named the Energy Analysis and Diagnostic Center (EADC) program when it began in association with four schools in 1976. The current IAC program provides funding to 26 engineering colleges, located in centers across the United States, to conduct energy, waste, and productivity assessments for small- to medium-sized manufacturing establishments within their respective regions. Through part-time employment with the university, students receive training and in turn conduct assessments for local manufacturers, under the directmore » supervision of engineering faculty. Annually, IAC participants conduct over 700 assessments, and each assessment generates recommendations for energy savings, energy cost savings, and waste and productivity cost savings customized for individual clients. An earlier study determined that energy savings could be attributed to alumni of the IAC program who take their IAC experiences with them to the professional workplace. During their careers, the alumni conduct additional energy assessments as well as influence energy efficiency through design, teaching and training, and other activities. Indeed, a significant level of program benefits can be attributed to the alumni. This project addressed such specific questions as: How many years after graduation are IAC alumni involved in energy-efficiency activities? What different methods do they use to influence energy-efficiency decisions? To answer these questions, the University of Tennessee, Knoxville (UT) surveyed IAC senior alumni, defined as those who graduated in 1995 or earlier. Section 2 describes the survey used in this research. The actual survey can be found in Appendix A. Section 3 describes our approach to data collection. Section 4 presents descriptive statistics about the senior alumni who responded to the survey. Section 5 begins with the presentation of two frameworks used to help analyze the data about alumni career paths and then presents the career path results. Section 6 offers concluding remarks.« less

Composite electrode for use in electrochemical cells

DOEpatents

Vanderborgh, N.E.; Huff, J.R.; Leddy, J.

1987-10-16

A porous composite electrode for use in electrochemical cells. The electrode has a first face and a second face defining a relatively thin section therebetween. The electrode is comprised of an ion conducting material, an electron conducting material, and an electrocatalyst. The volume concentration of the ion conducting material is greatest at the first face and is decreased across the section, while the volume concentration of the electron conducting material is greatest at the second face and decreases across the section of the electrode. Substantially all of the electrocatalyst is positioned within the electrode section in a relatively narrow zone where the rate of electron transport of the electrode is approximately equal to the rate of ion transport of the electrode. 4 figs., 1 tab.

Composite electrode for use in electrochemical cells

DOEpatents

Vanderborgh, Nicholas E.; Huff, James R.; Leddy, Johna

1989-01-01

A porous composite electrode for use in electrochemical cells. The electrode has a first face and a second face defining a relatively thin section therebetween. The electrode is comprised of an ion conducting material, an electron conducting material, and an electrocatalyst. The volume concentration of the ion conducting material is greatest at the first face and is decreased across the section, while the volume concentration of the electron conducting material is greatest at the second face and decreases across the section of the electrode. Substantially all of the electrocatalyst is positioned within the electrode section in a relatively narrow zone where the rate of electron transport of the electrode is approximately equal to the rate of ion transport of the electrode.

Evaluation of hydraulic conductivities calculated from multi-port permeameter measurements

USGS Publications Warehouse

Wolf, Steven H.; Celia, Michael A.; Hess, Kathryn M.

1991-01-01

A multiport permeameter was developed for use in estimating hydraulic conductivity over intact sections of aquifer core using the core liner as the permeameter body. Six cores obtained from one borehole through the upper 9 m of a stratified glacial-outwash aquifer were used to evaluate the reliability of the permeameter. Radiographs of the cores were used to assess core integrity and to locate 5- to 10-cm sections of similar grain size for estimation of hydraulic conductivity. After extensive testing of the permeameter, hydraulic conductivities were determined for 83 sections of the six cores. Other measurement techniques included permeameter measurements on repacked sections of core, estimates based on grain-size analyses, and estimates based on borehole flowmeter measurements. Permeameter measurements of 33 sections of core that had been extruded, homogenized, and repacked did not differ significantly from the original measurements. Hydraulic conductivities estimated from grain-size distributions were slightly higher than those calculated from permeameter measurements; the significance of the difference depended on the estimating equation used. Hydraulic conductivities calculated from field measurements, using a borehole flowmeter in the borehole from which the cores were extracted, were significantly higher than those calculated from laboratory measurements and more closely agreed with independent estimates of hydraulic conductivity based on tracer movement near the borehole. This indicates that hydraulic conductivities based on laboratory measurements of core samples may underestimate actual field hydraulic conductivities in this type of stratified glacial-outwash aquifer.

Magnetotelluric Forward Modeling and Inversion In 3 -d Conductivity Model of The Vesuvio Volcano

NASA Astrophysics Data System (ADS)

Spichak, V.; Patella, D.

Three-dimensional forward modeling of MT fields in the simplified conductivity model of the Vesuvio volcano (T=0.1, 1, 10, 100 and 1000s) indicates that the best image of the magma chamber could be obtained basing on the pseudo-section of the determinant apparent resitivity phase as well as on the real and imaginary components of the electric field. Another important result of the studies conducted is that it was demonstrated the principal opportunity of detection and contouring the magma chamber by 2-D pseudo-sections constructed basing on the data transforms mentioned above. Bayesian three-dimensional inversion of synthetic MT data in the volcano model indicates that it is possible to determine the depth and vertical size of the magma chamber, however, simultaneous detection of the conductivity distribution inside the domain of search is of pure quality. However, if the geometrical parameters of the magma chamber are determined in advance, it becomes quite realistic to find out the conductivity distribution inside. The accuracy of such estimation strongly depends on the uncertainty in its prior value: the more narrow is the prior conductivity palette the closer could be the posterior conductivity distribution to the true one.

Effects of carprofen on the integrity and barrier function of canine colonic mucosa.

PubMed

Briere, Catherine A; Hosgood, Giselle; Morgan, Timothy W; Hedlund, Cheryl S; Hicks, Merrin; McConnico, Rebecca S

2008-02-01

To measure effects of carprofen on conductance and permeability to mannitol and histologic appearance in canine colonic mucosa. Colonic mucosa from 13 mature mixed-breed dogs. Procedures-Sections of mucosa from the transverse colon and proximal and distal portions of the descending colon were obtained immediately after dogs were euthanized. Sections were mounted in Ussing chambers. Carprofen (400 microg/mL) was added to the bathing solution for treated sections. Conductance was calculated at 15-minute intervals for 240 minutes. Flux of mannitol was calculated for three 1-hour periods. Histologic examination of sections was performed after experiments concluded. Conductance was graphed against time for each chamber, and area under each curve was calculated. Conductance X time, flux of mannitol, and frequency distribution of histologic findings were analyzed for an effect of region and carprofen. Carprofen significantly increased mean conductance X time, compared with values for control (untreated) sections for all regions of colon. Carprofen significantly increased mean flux of mannitol from period 1 to period 2 and from period 2 to period 3 for all regions of colon. Carprofen caused a significant proportion of sections to have severe sloughing of cells and erosions involving >or= 10% of the epithelium, compared with control sections. Carprofen increased in vitro conductance and permeability to mannitol in canine colonic mucosa. Carprofen resulted in sloughing of cells and erosion of the colonic mucosa. These findings suggested that carprofen can compromise the integrity and barrier function of the colonic mucosa of dogs.

Sampling pig farms at the abattoir in a cross-sectional study - Evaluation of a sampling method.

PubMed

Birkegård, Anna Camilla; Halasa, Tariq; Toft, Nils

2017-09-15

A cross-sectional study design is relatively inexpensive, fast and easy to conduct when compared to other study designs. Careful planning is essential to obtaining a representative sample of the population, and the recommended approach is to use simple random sampling from an exhaustive list of units in the target population. This approach is rarely feasible in practice, and other sampling procedures must often be adopted. For example, when slaughter pigs are the target population, sampling the pigs on the slaughter line may be an alternative to on-site sampling at a list of farms. However, it is difficult to sample a large number of farms from an exact predefined list, due to the logistics and workflow of an abattoir. Therefore, it is necessary to have a systematic sampling procedure and to evaluate the obtained sample with respect to the study objective. We propose a method for 1) planning, 2) conducting, and 3) evaluating the representativeness and reproducibility of a cross-sectional study when simple random sampling is not possible. We used an example of a cross-sectional study with the aim of quantifying the association of antimicrobial resistance and antimicrobial consumption in Danish slaughter pigs. It was not possible to visit farms within the designated timeframe. Therefore, it was decided to use convenience sampling at the abattoir. Our approach was carried out in three steps: 1) planning: using data from meat inspection to plan at which abattoirs and how many farms to sample; 2) conducting: sampling was carried out at five abattoirs; 3) evaluation: representativeness was evaluated by comparing sampled and non-sampled farms, and the reproducibility of the study was assessed through simulated sampling based on meat inspection data from the period where the actual data collection was carried out. In the cross-sectional study samples were taken from 681 Danish pig farms, during five weeks from February to March 2015. The evaluation showed that the sampling procedure was reproducible with results comparable to the collected sample. However, the sampling procedure favoured sampling of large farms. Furthermore, both under-sampled and over-sampled areas were found using scan statistics. In conclusion, sampling conducted at abattoirs can provide a spatially representative sample. Hence it is a possible cost-effective alternative to simple random sampling. However, it is important to assess the properties of the resulting sample so that any potential selection bias can be addressed when reporting the findings. Copyright © 2017 Elsevier B.V. All rights reserved.

Coping, Stress, and the Psychological Symptoms of Children of Divorce: A Cross-Sectional and Longitudinal Study.

ERIC Educational Resources Information Center

Sandler, Irwin N.; And Others

1994-01-01

Examined stress and coping symptoms of 258 children whose parents were divorced. Found that, in the cross-sectional model, avoidance coping partially mediated the relations between negative events and symptoms; while active coping moderated between negative events and conduct problems. In the longitudinal model, significant negative paths were…

An Examination of How a Cross-Section of Academics Use Computer Technology when Writing Academic Papers.

ERIC Educational Resources Information Center

Wood, Eileen; Willoughby, Teena; Specht, Jacqueline; Porter, Lisa

2002-01-01

Describes a study conducted at two Canadian universities that surveyed a cross-section of 361 faculty, graduate, and undergraduate students to assess computer availability, experience, attitudes toward computers, and use of computers while engaged in academic writing. Compares advantages and disadvantages of writing on a computer versus written,…

State Level Programs to Prepare and Use Mental Health Manpower in a State Mental Health Agency.

ERIC Educational Resources Information Center

Southern Regional Education Board, Atlanta, GA.

To assist mental health agency leaders and others concerned with state mental health manpower development, these guidelines (presented in ten sections) explore various issues and approaches and indications for using one approach over another. The first three sections focus on designing and conducting manpower studies, making long range projections…

Los Alamos National Laboratory: A guide to records series supporting epidemiologic studies conducted for the Department of Energy

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

NONE

1997-01-01

The purpose of this guide is to describe each series of records that pertains to the epidemiologic studies conducted by the Epidemiology Section of the Occupational Medicine Group (ESH-2) at the Department of Energy`s (DOE) Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico. The records described in this guide relate to occupational studies performed by the Epidemiology Section, including those pertaining to workers at LANL, Mound Plant, Oak Ridge Reservation, Pantex Plant, Rocky Flats Plant, and Savannah River Site. Also included are descriptions of other health-related records generated or collected by the Epidemiology Section and a small setmore » of records collected by the Industrial Hygiene and Safety Group. This guide is not designed to describe the universe of records generated by LANL which may be used for epidemiologic studies of the LANL work force. History Associates Incorporated (HAI) prepared this guide as part of its work as the support services contractor for DOE`s Epidemiologic Records Inventory Project. This introduction briefly describes the Epidemiologic Records Inventory Project, HAI`s role in the project, the history of LANL the history and functions of LANL`s Health Division and Epidemiology Section, and the various epidemiologic studies performed by the Epidemiology Section. It provides information on the methodology that HAI used to inventory and describe records housed in the offices of the LANL Epidemiology Section in Technical Area 59 and at the LANL Records Center. Other topics include the methodology used to produce the guide, the arrangement of the detailed record series descriptions, and information concerning access to records repositories.« less

Study of rural transportation issues.

DOT National Transportation Integrated Search

2010-04-01

This report is in response to Section 6206 of the Food, Conservation, and Energy Act of 2008 (PL : 110-246), which directs the Secretaries of Agriculture and Transportation jointly to conduct a : study of rural transportation issues. The report revie...

40 CFR 93.153 - Applicability.

Code of Federal Regulations, 2012 CFR

2012-07-01

... operation to activities currently being conducted. (xii) Planning, studies, and provision of technical... control activities and adopting approach, departure, and enroute procedures for aircraft operations above... (e) of this section. (3) Research, investigations, studies, demonstrations, or training (other than...

40 CFR 93.153 - Applicability.

Code of Federal Regulations, 2013 CFR

2013-07-01

... operation to activities currently being conducted. (xii) Planning, studies, and provision of technical... control activities and adopting approach, departure, and enroute procedures for aircraft operations above... (e) of this section. (3) Research, investigations, studies, demonstrations, or training (other than...

40 CFR 93.153 - Applicability.

Code of Federal Regulations, 2014 CFR

2014-07-01

... operation to activities currently being conducted. (xii) Planning, studies, and provision of technical... control activities and adopting approach, departure, and enroute procedures for aircraft operations above... (e) of this section. (3) Research, investigations, studies, demonstrations, or training (other than...

75 FR 69295 - Taking and Importing Marine Mammals; Navy Training Activities Conducted Within the Northwest...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-10

... partners, the comparative study will be designed and conducted for specific sites during intervals of both...' analysis of these measures is included in the Response to Public Comment section. Research The Navy provides a significant amount of funding and support to marine research. In the past five years [[Page...

78 FR 71621 - Agency Information Collection Activities; Proposed Collection; Comment Request; Eye Tracking...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-11-29

... notice. This notice solicits comments on research entitled, ``Eye Tracking Study of Direct-to-Consumer... the FDA to conduct research relating to health information. Section 1003(d)(2)(C) of the Federal Food, Drug, and Cosmetic Act (the FD&C Act) (21 U.S.C. 393(b)(2)(c)) authorizes FDA to conduct research...

Examining the Need for a Code of Conduct in New Jersey Teacher Union Contracts

ERIC Educational Resources Information Center

Guarneri, Cristina M.

2009-01-01

The purpose of this cross-sectional, comparison study attempted to investigate if a code of conduct existed in New Jersey teacher union contracts to nursing/hospital union contracts. Archived data of public school district and nursing/hospital union contracts held with the New Jersey Public Employment Relations Committee (NJ PERC) and Health…

Authoritarian parenting attitudes as a risk for conduct problems Results from a British national cohort study.

PubMed

Thompson, Anne; Hollis, Chris; Dagger, David Richards

2003-04-01

This study examines the associations, and possible causal relationship, between mothers' authoritarian attitudes to discipline and child behaviour using cross-sectional and prospective data from a large population sample surveyed in the 1970 British Cohort Study. Results show a clear linear relationship between the degree of maternal approval of authoritarian child-rearing attitudes and the rates of conduct problems at age 5 and age 10. This association is independent of the confounding effects of socio-economic status and maternal psychological distress. Maternal authoritarian attitudes independently predicted the development of conduct problems 5 years later at age 10. The results of this longitudinal study suggest that authoritarian parenting attitudes expressed by mothers may be of significance in the development of conduct problems.

Coping, stress, and the psychological symptoms of children of divorce: a cross-sectional and longitudinal study.

PubMed

Sandler, I N; Tein, J Y; West, S G

1994-12-01

The authors conducted a cross-sectional and prospective longitudinal study of stress, coping, and psychological symptoms in children of divorce. The sample consisted of 258 children (mean age = 10.1; SD = 1.2), of whom 196 were successfully followed 5.5 months later. A 4-dimensional model of coping was found using confirmatory factor analysis, with the factors being active coping, avoidance, distraction, and support. In the cross-sectional model avoidance coping partially mediated the relations between negative events and symptoms while active coping moderated the relations between negative events and conduct problems. In the longitudinal model significant negative paths were found from active coping and distraction Time 1 to internalizing symptoms Time 2, while Time 1 support coping had a positive path coefficient to Time 2 depression. Positive paths were found between negative events at Time 1 and anxiety at Time 2, and between all symptoms at Time 1 and negative events at Time 2.

How to Use Benchmark and Cross-section Studies to Improve Data Libraries and Models

NASA Astrophysics Data System (ADS)

Wagner, V.; Suchopár, M.; Vrzalová, J.; Chudoba, P.; Svoboda, O.; Tichý, P.; Krása, A.; Majerle, M.; Kugler, A.; Adam, J.; Baldin, A.; Furman, W.; Kadykov, M.; Solnyshkin, A.; Tsoupko-Sitnikov, S.; Tyutyunikov, S.; Vladimirovna, N.; Závorka, L.

2016-06-01

Improvements of the Monte Carlo transport codes and cross-section libraries are very important steps towards usage of the accelerator-driven transmutation systems. We have conducted a lot of benchmark experiments with different set-ups consisting of lead, natural uranium and moderator irradiated by relativistic protons and deuterons within framework of the collaboration “Energy and Transmutation of Radioactive Waste”. Unfortunately, the knowledge of the total or partial cross-sections of important reactions is insufficient. Due to this reason we have started extensive studies of different reaction cross-sections. We measure cross-sections of important neutron reactions by means of the quasi-monoenergetic neutron sources based on the cyclotrons at Nuclear Physics Institute in Řež and at The Svedberg Laboratory in Uppsala. Measurements of partial cross-sections of relativistic deuteron reactions were the second direction of our studies. The new results obtained during last years will be shown. Possible use of these data for improvement of libraries, models and benchmark studies will be discussed.

Low power consumption resistance random access memory with Pt/InOx/TiN structure

NASA Astrophysics Data System (ADS)

Yang, Jyun-Bao; Chang, Ting-Chang; Huang, Jheng-Jie; Chen, Yu-Ting; Tseng, Hsueh-Chih; Chu, Ann-Kuo; Sze, Simon M.; Tsai, Ming-Jinn

2013-09-01

In this study, the resistance switching characteristics of a resistive random access memory device with Pt/InOx/TiN structure is investigated. Unstable bipolar switching behavior is observed during the initial switching cycle, which then stabilizes after several switching cycles. Analyses indicate that the current conduction mechanism in the resistance state is dominated by Ohmic conduction. The decrease in electrical conductance can be attributed to the reduction of the cross-sectional area of the conduction path. Furthermore, the device exhibits low operation voltage and power consumption.

Research on Community Bands: Past, Present, and Future

ERIC Educational Resources Information Center

Rohwer, Debbie

2016-01-01

The purpose of this review of literature was to synthesize findings of studies investigating community bands. This review of literature centers on research that has been conducted on community bands in status studies, historical/cultural studies, pedagogical studies, health and wellness studies, and intergenerational studies. The last section of…

40 CFR 160.33 - Study director.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Study director. 160.33 Section 160.33... PRACTICE STANDARDS Organization and Personnel § 160.33 Study director. For each study, a scientist or other... the study director. The study director has overall responsibility for the technical conduct of the...

40 CFR 160.33 - Study director.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Study director. 160.33 Section 160.33... PRACTICE STANDARDS Organization and Personnel § 160.33 Study director. For each study, a scientist or other... the study director. The study director has overall responsibility for the technical conduct of the...

Benefits of Safety Belts and Motorcycle Helmets. Report to Congress

DOT National Transportation Integrated Search

1996-02-01

This study was undertaken in response to Section 1031(b) of the Intermodal : Surface Transportation Efficiency Act of 1991 (ISTEA), which required the : National Highway Traffic Safety Administration (NHTSA) to conduct a study to : determine the bene...

Case study of 4(f) litigation/rulings.

DOT National Transportation Integrated Search

2004-06-01

This study addresses issues related to compliance with Section 4(f). By referring to the manual Cabinet employees will be to: 1) Conduct an assessment of proposed alternatives to evaluate prudence and feasibility of a proposed project alternative; 2)...

Environmental impact case study : Project 0100-077-105, C-501 : Dublin, Virginia.

DOT National Transportation Integrated Search

1971-01-01

At the request of the Environmental Quality Division of the Virginia Department of Highways, the Environmental and Economics Section of the Virginia Highway Research Council conducted a study to determine the probable socioeconomic and environmental ...

40 CFR 160.135 - Physical and chemical characterization studies.

Code of Federal Regulations, 2010 CFR

2010-07-01

... studies. 160.135 Section 160.135 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PESTICIDE PROGRAMS GOOD LABORATORY PRACTICE STANDARDS Protocol for and Conduct of a Study § 160.135 Physical and chemical characterization studies. (a) All provisions of the GLP standards shall apply to physical...

14 CFR 77.33 - Initiation of studies.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Initiation of studies. 77.33 Section 77.33... OBJECTS AFFECTING NAVIGABLE AIRSPACE Aeronautical Studies of Effect of Proposed Construction on Navigable Airspace § 77.33 Initiation of studies. (a) An aeronautical study is conducted by the FAA: (1) Upon the...

Pacific Northwest Laboratory annual report for 1993 to the DOE Office of Energy Research. Part 1: Biomedical Sciences

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

Lumetta, C.C.; Park, J.F.

1994-03-01

This report summarizes FY 1993 progress in biological and general life sciences research programs conducted for the Department of Energy`s Office of Health and Environmental REsearch (OHER) at Pacific Northwest Laboratory (PNL). This research provides knowledge of fundamental principles necessary to identify, understand, and anticipate the long-term health consequences of exposure to energy-related radiation and chemicals. The Biological Research section contains reports of studies using laboratory animals, in vitro cell systems, and molecular biological systems. This research includes studies of the impact of radiation, radionuclides, and chemicals on biological responses at all levels of biological organization. The General Life Sciencesmore » Research section reports research conducted for the OHER human genome program.« less

Reynolds number effects on the aerodynamic characteristics of irregular planform wings at Mach number 0.3. [in the Ames 12 ft pressure wind tunnel

NASA Technical Reports Server (NTRS)

Kruse, R. L.; Lovette, G. H.; Spencer, B., Jr.

1977-01-01

The subsonic aerodynamic characteristics of a series of irregular planform wings were studied in wind tunnel tests conducted at M = 0.3 over a range of Reynolds numbers from 1.6 million to 26 million/m. The five basic wing planforms varied from a trapezoidal to a delta shape. Leading edge extensions, added to the basic shape, varied in approximately 5 deg increments from the wing leading edge sweep-back angle to a maximum 80 deg. Most of the tests were conducted using an NACA 0008 airfoil section with grit boundary layer trips. Tests were also conducted using an NACA 0012 airfoil section and an 8% thick wedge. In addition, the effect of free transition (no grit) was investigated. A body was used on all models.

Comparison of ALE and SPH Simulations of Vertical Drop Tests of a Composite Fuselage Section into Water

NASA Technical Reports Server (NTRS)

Jackson, Karen E.; Fuchs, Yvonne T.

2008-01-01

Simulation of multi-terrain impact has been identified as an important research area for improved prediction of rotorcraft crashworthiness within the NASA Subsonic Rotary Wing Aeronautics Program on Rotorcraft Crashworthiness. As part of this effort, two vertical drop tests were conducted of a 5-ft-diameter composite fuselage section into water. For the first test, the fuselage section was impacted in a baseline configuration without energy absorbers. For the second test, the fuselage section was retrofitted with a composite honeycomb energy absorber. Both tests were conducted at a nominal velocity of 25-ft/s. A detailed finite element model was developed to represent each test article and water impact was simulated using both Arbitrary Lagrangian Eulerian (ALE) and Smooth Particle Hydrodynamics (SPH) approaches in LS-DYNA, a nonlinear, explicit transient dynamic finite element code. Analytical predictions were correlated with experimental data for both test configurations. In addition, studies were performed to evaluate the influence of mesh density on test-analysis correlation.

Facing Off: Comparing an In-Person Library Orientation Lecture with an Asynchronous Online Library Orientation

ERIC Educational Resources Information Center

Gall, Dan

2014-01-01

A study to compare the effectiveness of an in-person library orientation with an online asynchronous orientation was conducted with three sections of Social Work Research Methods, a required course in the University of Iowa's Master of Social Work program. Two sections of the course received an online orientation involving short videos, text and…

Study of Integration Considerations for Wireless Emergency Alerts

DTIC Science & Technology

2014-02-01

affect adoption. Section 4 presents a list of overall considerations for integrating a WEA messaging solution into an existing emergency management...in a product may negatively affect another de- sired quality. This section offers considerations for balancing an organization’s priorities con... affect what emergency management agencies can, should, and must do with respect to conducting exercises and issuing alerts. More information about

Hypersonic aerospace vehicle leading edge cooling using heat pipe, transpiration and film cooling techniques

NASA Astrophysics Data System (ADS)

Modlin, James Michael

An investigation was conducted to study the feasibility of cooling hypersonic vehicle leading edge structures exposed to severe aerodynamic surface heat fluxes using a combination of liquid metal heat pipes and surface mass transfer cooling techniques. A generalized, transient, finite difference based hypersonic leading edge cooling model was developed that incorporated these effects and was demonstrated on an assumed aerospace plane-type wing leading edge section and a SCRAMJET engine inlet leading edge section. The hypersonic leading edge cooling model was developed using an existing, experimentally verified heat pipe model. Two applications of the hypersonic leading edge cooling model were examined. An assumed aerospace plane-type wing leading edge section exposed to a severe laminar, hypersonic aerodynamic surface heat flux was studied. A second application of the hypersonic leading edge cooling model was conducted on an assumed one-quarter inch nose diameter SCRAMJET engine inlet leading edge section exposed to both a transient laminar, hypersonic aerodynamic surface heat flux and a type 4 shock interference surface heat flux. The investigation led to the conclusion that cooling leading edge structures exposed to severe hypersonic flight environments using a combination of liquid metal heat pipe, surface transpiration, and film cooling methods appeared feasible.

Dog ownership and physical activity: a review of the evidence.

PubMed

Christian, Hayley E; Westgarth, Carri; Bauman, Adrian; Richards, Elizabeth A; Rhodes, Ryan E; Evenson, Kelly R; Mayer, Joni A; Thorpe, Roland J

2013-07-01

Dog walking is a strategy for increasing population levels of physical activity (PA). Numerous cross-sectional studies of the relationship between dog ownership and PA have been conducted. The purpose was to review studies comparing PA of dog owners (DO) to nondog owners (NDO), summarize the prevalence of dog walking, and provide recommendations for research. A review of published studies (1990-2010) examining DO and NDO PA and the prevalence of dog walking was conducted (N = 29). Studies estimating the relationship between dog ownership and PA were grouped to create a point- estimate using meta-analysis. Most studies were conducted in the last 5 years, were cross-sectional, and sampled adults from Australia or the United States. Approximately 60% of DO walked their dog, with a median duration and frequency of 160 minutes/week and 4 walks/week, respectively. Meta-analysis showed DO engage in more walking and PA than NDO and the effect sizes are small to moderate (d = 0.26 and d = 0.16, respectively). Three studies provided evidence of a directional relationship between dog ownership and walking. Longitudinal and interventional studies would provide stronger causal evidence for the relationship between dog ownership and PA. Improved knowledge of factors associated with dog walking will guide intervention research.

Improving FHWA's Ability to Assess Highway Infrastructure Health : Pilot Study Report

DOT National Transportation Integrated Search

2012-07-01

This report documents the results of a pilot study conducted as part of a project on improving FHWAs ability to assess highway infrastructure health. As part of the pilot study, a section of Interstate 90 through South Dakota, Minnesota, and Wisco...

Bibliometric Analysis of Journal of Clinical and Diagnostic Research (Dentistry Section; 2007-2014)

PubMed Central

Basavaraj, P; Singla, Ashish; Singh, Khushboo; Kundu, Hansa; Vashishtha, Vaibhav; Pandita, Venisha; Malhi, Ravneet

2015-01-01

Background: The role of scientific journals in diffusion of data concerning researches in the field of Public Health Dentistry is of premier importance. Bibliometric analysis involves analysis of publications reflecting the type of research work. Aim: The present study was conducted with an aim to determine the number and trends of published articles in Journal of Clinical and Diagnostic Research (JCDR) from Feb. 2007 to Oct.2014. Settings and Design: A retrospective observational study was conducted for JCDR. Materials and Methods: All issues of JCDR were electronically searched for the parameters : study design, area of interest of research, state /college where research was conducted, authorship pattern, source of articles published each year, changing study trends, disease under study and publication bias. Statistical Analysis used: The data was organized and analyzed using software SPSS - version 21.0; descriptive statistics was used. Results: Bibliometric analysis was done for 601 articles of JCDR published from Feb. 2007 to Oct. 2014. The total number of articles published under Dentistry section have tremendously increased from mere 2 articles in 2007 to 328 articles in 2014.Majority of the study designs published in both the journal were case reports (42.6%) followed by cross sectional studies (24.8%). 96.3% of the articles were from India. Majority of the articles published were of multi authors (65.2%) and from Educational institutes (98.4%). The trends of the articles published indicated that the case reports/series formed the major bulk (others=59.1%) followed by research studies (21.3%). Conclusion: It was concluded that most articles published were case reports followed by researches indicating an inclination towards better quality methodology. The SJR and the citation count of the articles published also indicated the quality of the scientific articles published. PMID:26023643

Bibliometric analysis of journal of clinical and diagnostic research (dentistry section; 2007-2014).

PubMed

Jain, Swati; Basavaraj, P; Singla, Ashish; Singh, Khushboo; Kundu, Hansa; Vashishtha, Vaibhav; Pandita, Venisha; Malhi, Ravneet

2015-04-01

The role of scientific journals in diffusion of data concerning researches in the field of Public Health Dentistry is of premier importance. Bibliometric analysis involves analysis of publications reflecting the type of research work. The present study was conducted with an aim to determine the number and trends of published articles in Journal of Clinical and Diagnostic Research (JCDR) from Feb. 2007 to Oct.2014. A retrospective observational study was conducted for JCDR. All issues of JCDR were electronically searched for the parameters : study design, area of interest of research, state /college where research was conducted, authorship pattern, source of articles published each year, changing study trends, disease under study and publication bias. The data was organized and analyzed using software SPSS - version 21.0; descriptive statistics was used. Bibliometric analysis was done for 601 articles of JCDR published from Feb. 2007 to Oct. 2014. The total number of articles published under Dentistry section have tremendously increased from mere 2 articles in 2007 to 328 articles in 2014.Majority of the study designs published in both the journal were case reports (42.6%) followed by cross sectional studies (24.8%). 96.3% of the articles were from India. Majority of the articles published were of multi authors (65.2%) and from Educational institutes (98.4%). The trends of the articles published indicated that the case reports/series formed the major bulk (others=59.1%) followed by research studies (21.3%). It was concluded that most articles published were case reports followed by researches indicating an inclination towards better quality methodology. The SJR and the citation count of the articles published also indicated the quality of the scientific articles published.

Jewish Day-Schooled Adolescents' Perceptions of Parental and Environmental Support of Physical Activity

ERIC Educational Resources Information Center

Kahan, David

2005-01-01

Few studies of religiosity and physical activity (PA) correlates have been conducted; thus, a cross-sectional survey of 367 more and less religious Jewish adolescents' (M age = 12.8 years, SD = 0.9) perceptions of parental and environmental support of PA was conducted at religious day schools in two large American cities. Maternal Support,…

Collection Growth, Expenditures, and Automation in Academic Libraries: A Preliminary Inquiry.

ERIC Educational Resources Information Center

Werking, Richard Hume

A study was conducted to examine library data and trends among a group of 42 liberal arts colleges known as the "Bowdoin List." Questionnaires were completed and returned by 35 of the colleges, and interviews were conducted with the library directors at 22 of the colleges. The first of 10 sections in this report presents the statistical…

Student Speech--The First Amendment and Qualified Immunity Under 42 U.S.C. Section 983: Conduct Implications for School Administrators

ERIC Educational Resources Information Center

Araux, Jose Luis

2013-01-01

Purpose: The purpose of this study was to describe and analyze the conduct implications of qualified immunity in allegations of deprivation of civil rights by public school administrators regarding the First Amendment-student speech. Methodology: Data were collected using the LexisNexis and JuriSearch online legal research systems, which…

Geoelectrical investigation of oil contaminated soils in former underground fuel base: Borne Sulinowo, NW Poland

NASA Astrophysics Data System (ADS)

Zogala, B.; Dubiel, R.; Zuberek, W. M.; Rusin-Zogala, M.; Steininger, M.

2009-07-01

The survey has been carried out in the area of 0.23 km2 of the former military underground fuel base. The oil derivative products were observed in excavations and the laboratory tests confirmed the occurrence of hydrocarbons (>C12) in soils. The purpose of the survey was to determine the spatial extent of the contamination. The studied area is covered by postglacial sediments: sands, gravels and till. The first water table was observed at a depth of 10-12 m. The detailed electromagnetic measurements with Geonics EM31-MK2 conductivity meter were performed in the whole area of the former fuel base. Obtained results were elaborated statistically and the map of apparent electrical conductivity to a depth of 6 m was created. Many local low conductivity anomalies were observed. The measurements with Geonics EM34-3XL were performed along one A-A' profile and 1D electromagnetic modelling along with this profile was calculated to obtain the electrical conductivity cross-section to a depth of 30 m. Two-dimensional electrical resistivity imaging measurements were carried out along the same profile and the resistivity cross-section to a depth of 20 m was performed. Both conducivity and resistivity cross-sections show anomalous zones. The zones correlate with oil contaminated zones very well.

Gratitude and Adolescent Athletes' Well-Being

ERIC Educational Resources Information Center

Chen, Lung Hung; Kee, Ying Hwa

2008-01-01

Two cross-sectional studies were conducted to examine the relationships between gratitude and athletes' well-being. Study 1 examines the relationship between dispositional gratitude and well-being, while Study 2 investigates the relationship between sport-domain gratitude and well-being. In Study 1, 169 Taiwanese senior high school athletes (M =…

21 CFR 312.85 - Phase 4 studies.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 5 2010-04-01 2010-04-01 false Phase 4 studies. 312.85 Section 312.85 Food and...-debilitating Illnesses § 312.85 Phase 4 studies. Concurrent with marketing approval, FDA may seek agreement from the sponsor to conduct certain postmarketing (phase 4) studies to delineate additional information...

42 CFR 431.713 - Continuing study and investigation.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 42 Public Health 4 2011-10-01 2011-10-01 false Continuing study and investigation. 431.713 Section... Programs for Licensing Nursing Home Administrators § 431.713 Continuing study and investigation. The agency or board must conduct a continuing study of nursing homes and administrators within the State to...

42 CFR 431.713 - Continuing study and investigation.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Continuing study and investigation. 431.713 Section... Programs for Licensing Nursing Home Administrators § 431.713 Continuing study and investigation. The agency or board must conduct a continuing study of nursing homes and administrators within the State to...

5 CFR 724.402 - Best practices study.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Best practices study. 724.402 Section 724... RETALIATION ACT OF 2002 Best Practices § 724.402 Best practices study. (a) OPM will conduct a comprehensive study in the executive branch to identify best practices for taking appropriate disciplinary actions...

77 FR 3294 - Comment Request for Study Regarding Financial Literacy Among Investors

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-23

... Study Regarding Financial Literacy Among Investors AGENCY: Securities and Exchange Commission. ACTION: Request for comment. SUMMARY: In connection with a study regarding financial literacy among investors as... INFORMATION: Section 917 of the Dodd-Frank Act requires the Commission to conduct a study regarding financial...

21 CFR 312.85 - Phase 4 studies.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 5 2011-04-01 2011-04-01 false Phase 4 studies. 312.85 Section 312.85 Food and...-debilitating Illnesses § 312.85 Phase 4 studies. Concurrent with marketing approval, FDA may seek agreement from the sponsor to conduct certain postmarketing (phase 4) studies to delineate additional information...

5 CFR 724.402 - Best practices study.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 5 Administrative Personnel 2 2011-01-01 2011-01-01 false Best practices study. 724.402 Section 724... RETALIATION ACT OF 2002 Best Practices § 724.402 Best practices study. (a) OPM will conduct a comprehensive study in the executive branch to identify best practices for taking appropriate disciplinary actions...

Self-Esteem, Study Habits and Academic Performance among University Students

ERIC Educational Resources Information Center

Chilca Alva, Manuel L.

2017-01-01

This study was intended to establish whether self-esteem and study habits correlate with academic performance among university students. Research conducted was descriptive observational, multivariate or cross-sectional factorial in nature. The study population consisted of 196 students enrolled in a Basic Mathematics 1 class at the School of…

40 CFR 761.386 - Required experimental conditions for the validation study and subsequent use during decontamination.

Code of Federal Regulations, 2014 CFR

2014-07-01

... the validation study and subsequent use during decontamination. 761.386 Section 761.386 Protection of... experimental conditions for the validation study and subsequent use during decontamination. The following experimental conditions apply for any solvent: (a) Temperature and pressure. Conduct the validation study and...

40 CFR 761.386 - Required experimental conditions for the validation study and subsequent use during decontamination.

Code of Federal Regulations, 2012 CFR

2012-07-01

... the validation study and subsequent use during decontamination. 761.386 Section 761.386 Protection of... experimental conditions for the validation study and subsequent use during decontamination. The following experimental conditions apply for any solvent: (a) Temperature and pressure. Conduct the validation study and...

40 CFR 761.386 - Required experimental conditions for the validation study and subsequent use during decontamination.

Code of Federal Regulations, 2013 CFR

2013-07-01

... the validation study and subsequent use during decontamination. 761.386 Section 761.386 Protection of... experimental conditions for the validation study and subsequent use during decontamination. The following experimental conditions apply for any solvent: (a) Temperature and pressure. Conduct the validation study and...

78 FR 2418 - Privacy Act; Notification of New Privacy Act System of Records, Pre-Purchase Homeownership...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-11

... and Research (PD&R) and its contractors to conduct a random assignment and impact evaluation study of... ``Purpose'' section to obtain detailed information about the purpose of this study. DATES: Effective Date...

Improvement of the Work Environment and Work-Related Stress: A Cross-Sectional Multilevel Study of a Nationally Representative Sample of Japanese Workers.

PubMed

Watanabe, Kazuhiro; Tabuchi, Takahiro; Kawakami, Norito

2017-03-01

This cross-sectional multilevel study aimed to investigate the relationship between improvement of the work environment and work-related stress in a nationally representative sample in Japan. The study was based on a national survey that randomly sampled 1745 worksites and 17,500 nested employees. The survey asked the worksites whether improvements of the work environment were conducted; and it asked the employees to report the number of work-related stresses they experienced. Multilevel multinominal logistic and linear regression analyses were conducted. Improvement of the work environment was not significantly associated with any level of work-related stress. Among men, it was significantly and negatively associated with the severe level of work-related stress. The association was not significant among women. Improvements to work environments may be associated with reduced work-related stress among men nationwide in Japan.

Association of Job Stressors With Panic Attack and Panic Disorder in a Working Population in Japan: A Cross-Sectional Study.

PubMed

Asai, Yumi; Imamura, Kotaro; Kawakami, Norito

2017-06-01

This study aimed to investigate associations of job stressors with panic attack (PA) and panic disorder (PD) among Japanese workers. A cross-sectional online questionnaire survey was conducted of 2060 workers. Job strain, effort/reward imbalance, and workplace social support were measured by the job content questionnaire and effort/reward imbalance questionnaire. These variables were classified into tertiles. PA/PD were measured by self-report based on the mini international neuropsychiatric interview (MINI). Multiple logistic regression was conducted, adjusting for demographic, lifestyle, and health-related covariates. Data from 1965 participants were analyzed. Adjusted odds ratio (OR) of PA/PD was significantly greater for the group with high effort/reward imbalance compared with the group with low effort/reward imbalance (ORs, 2.64 and 2.94, respectively, both P < 0.05). This study found effort/reward imbalance was associated with having PA/PD among Japanese workers.

Computer-Based Learning: Graphical Integration of Whole and Sectional Neuroanatomy Improves Long-Term Retention

PubMed Central

Naaz, Farah; Chariker, Julia H.; Pani, John R.

2013-01-01

A study was conducted to test the hypothesis that instruction with graphically integrated representations of whole and sectional neuroanatomy is especially effective for learning to recognize neural structures in sectional imagery (such as MRI images). Neuroanatomy was taught to two groups of participants using computer graphical models of the human brain. Both groups learned whole anatomy first with a three-dimensional model of the brain. One group then learned sectional anatomy using two-dimensional sectional representations, with the expectation that there would be transfer of learning from whole to sectional anatomy. The second group learned sectional anatomy by moving a virtual cutting plane through the three-dimensional model. In tests of long-term retention of sectional neuroanatomy, the group with graphically integrated representation recognized more neural structures that were known to be challenging to learn. This study demonstrates the use of graphical representation to facilitate a more elaborated (deeper) understanding of complex spatial relations. PMID:24563579

Characterization of Interactions between Surface Water and Near-Stream Groundwater along Fish Creek, Teton County, Wyoming, by Using Heat as a Tracer

USGS Publications Warehouse

Eddy-Miller, Cheryl A.; Wheeler, Jerrod D.; Essaid, Hedeff I.

2009-01-01

Fish Creek, a tributary of the Snake River, is about 25 river kilometers long and is located in Teton County in western Wyoming near the town of Wilson. Local residents began observing an increase in the growth of algae and aquatic plants in the stream during the last decade. Due to the known importance of groundwater to surface water in the area, the U.S. Geological Survey (USGS), in cooperation with the Teton Conservation District, conducted a study to characterize the interactions between surface water and near-stream groundwater along Fish Creek. The study has two main objectives: (1) develop an improved spatial and temporal understanding of water flow (fluxes) between surface water and groundwater, and (2) use a two-dimensional groundwater-flow and heat-transport model to interpret observed temperature and hydraulic-head distributions and to describe groundwater flow near Fish Creek. The study is intended to augment hydrologic information derived from previously published results of a seepage investigation on Fish Creek. Seepage measurements provide spatially averaged gains and losses over an entire reach for one point in time, whereas continuous temperature and water-level measurements provide continuous estimates of gain and loss at a specific location. Stage, water-level, and temperature data were collected from surface water and from piezometers completed in an alluvial aquifer at three cross sections on Fish Creek at Teton Village, Resor's Bridge, and Wilson from October 2004 to October 2006. The flow and energy (heat) transport model VS2DH was used to simulate flow through the streambed of Fish Creek at the Teton Village cross section from April 15 to October 14, 2006, (183 recharge periods) and at the Resor's Bridge and Wilson cross sections from June 6, 2005, to October 14, 2006 (496 recharge periods). A trial-and-error technique was used to determine the best match between simulated and measured data. These results were then used to calibrate the cross-sectional models and determine horizontal and vertical hydraulic conductivities. The fluxes of groundwater into the stream or fluxes of stream water into the alluvial aquifer were estimated by using the calibrated VS2DH model for each cross section. Results of the simulations indicated that surface water/groundwater interaction and hydraulic properties were different at the three cross sections. At the most upstream cross section, Teton Village, Fish Creek flowed intermittently and continually gained relatively large quantities of water from April through September. During other times of the year, the stream was dry near the cross section. Saturated hydraulic conductivity set at 1x10-4 m/s in both the horizontal and vertical directions resulted in the best match between simulated and measured temperatures. The Resor's Bridge cross section, about midway between the other two cross sections, was near the point where perennial flow begins. At this cross section, the stream gained water from groundwater during high flow in late spring and summer, was near equilibrium with groundwater during August and September, and lost water to groundwater during the remainder of the year. Horizontal hydraulic conductivity set at 5x10-5 m/s and vertical hydraulic conductivity set at 1x10-5 m/s resulted in the best match between simulated and measured temperatures. The Wilson cross section, the most downstream site, was at USGS streamflow-gaging station 13016450. This part of the stream is perennial and was almost always gaining a small volume of water from groundwater. Saturated hydraulic conductivity set at 1x10-4 m/s in the horizontal direction and at 5x10-6 m/s in the vertical direction resulted in the best match between simulated and measured temperatures. Quantitative values of the flux from groundwater into surface water were estimated by using VS2DH and ranged from 1.1 to 6.6 cubic meters per day (m3/d) at the Teton Village cross section, from -3.8 to 7.4 m3/d at t

19 CFR 206.44a - Special rules for conducting investigations under section 421(b) of the Trade Act.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 19 Customs Duties 3 2013-04-01 2013-04-01 false Special rules for conducting investigations under section 421(b) of the Trade Act. 206.44a Section 206.44a Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL AND BILATERAL SAFEGUARD ACTIONS...

19 CFR 206.44a - Special rules for conducting investigations under section 421(b) of the Trade Act.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 19 Customs Duties 3 2014-04-01 2014-04-01 false Special rules for conducting investigations under section 421(b) of the Trade Act. 206.44a Section 206.44a Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL AND BILATERAL SAFEGUARD ACTIONS...

Use of rapid rural appraisal and cross-sectional studies in the assessment of constraints in smallholder cattle production systems in the western Kenya highlands.

PubMed

Okuthe, O S; McLeod, A; Otte, J M; Buyu, G E

2003-09-01

Assessment of livestock production constraints in the smallholder dairy systems in the western Kenya highlands was carried out using both qualitative and quantitative epidemiological methods. Rapid rural appraisals (qualitative) were conducted in rural and peri-urban areas. A cross-sectional survey (quantitative) was then conducted on a random sample of farms in the study area. Diseases, poor communication, lack of marketing of livestock produce, lack of artificial insemination services, and feed and water shortages during the dry season were identified as the major constraints to cattle production in both areas. Tick borne diseases (especially East Coast fever) were identified as the major constraint to cattle production. Qualitative methods were found to be more flexible and cheaper than the quantitative methods by a ratio of between 2.19-2.0. The two methods were found to complement each other. Qualitative studies could be applied in preliminary studies before initiating more specific follow up quantitative studies.

14 CFR 77.33 - Initiation of studies.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Initiation of studies. 77.33 Section 77.33... OBJECTS AFFECTING NAVIGABLE AIRSPACE (Eff. until 1-18-11) Aeronautical Studies of Effect of Proposed Construction on Navigable Airspace § 77.33 Initiation of studies. (a) An aeronautical study is conducted by the...

30 CFR 256.82 - Environmental studies.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 30 Mineral Resources 2 2011-07-01 2011-07-01 false Environmental studies. 256.82 Section 256.82... INTERIOR OFFSHORE LEASING OF SULPHUR OR OIL AND GAS IN THE OUTER CONTINENTAL SHELF Studies § 256.82 Environmental studies. (a) The Director shall conduct a study of any area or region included in any lease sale...

30 CFR 256.82 - Environmental studies.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 30 Mineral Resources 2 2010-07-01 2010-07-01 false Environmental studies. 256.82 Section 256.82... OIL AND GAS IN THE OUTER CONTINENTAL SHELF Studies § 256.82 Environmental studies. (a) The Director shall conduct a study of any area or region included in any lease sale in order to establish information...

On the Factor Structure of the Grammar Section of University of Tehran English Proficiency Test (UTEPT)

ERIC Educational Resources Information Center

Salehi, Mohammad; Rezaee, Abbas Ali

2009-01-01

The study was conducted with 3,385 participants who took an English language proficiency test as a partial requirement for entering a PhD program in different fields of education. This test has three sections which are grammar, vocabulary and reading comprehension. To determine the construct validity of the test, a series of analyses were done.…

Cross-Sectional and Longitudinal Risk Factors for Falls, Fear of Falling, and Falls Efficacy in a Cohort of Middle-Aged African Americans

ERIC Educational Resources Information Center

Anderson, Elena M.; Wolinsky, Fredric D.; Miller, J. Phillip; Wilson, Margaret-Mary G.; Malmstrom, Theodore K.; Miller, Douglas K.

2006-01-01

Purpose: The purpose of this study is to cross-sectionally and longitudinally identify risk factors for falls, fear of falling, and falls efficacy in late-middle-aged African Americans. Design and Methods: We performed in-home assessments on a probability sample of 998 African Americans and conducted two annual follow-up interviews. Multiple…

Interactional Markers in English Medical Research Articles Written by Iranian and Native Authors: A Contrastive Metadiscourse Analysis of Method Section

ERIC Educational Resources Information Center

Ghadyani, Fariba; Tahririan, Mohammad Hassan

2014-01-01

To determine the issue of whether there were any significant differences between the groups including Iran ISI, Iran non- ISI, and native authors in binary comparisons as for employing interactional markers, the present study was conducted. To collect the data, 90 "method sections" of English medical research articles within Iranian ISI,…

Commercial Motor Vehicle (CMV) Driver Restart Study: Final Report

DOT National Transportation Integrated Search

2017-03-01

A congressionally-mandated naturalistic study was conducted to evaluate the operational, safety, fatigue, and health impacts of the restart provisions in Sections 395.3(c) and 395.3(d) of Title 49, Code of Federal Regulations. A total of 235 commerci...

Environmental impact case study : Route 220, Fincastle to Eagle Rock : Project 0220-002-106.

DOT National Transportation Integrated Search

1971-01-01

At the request of the Environmental Quality Division, the Environmental and Economics Section of the Virginia Highway Research Council conducted a study to determine the probable socioeconomic and environmental impact of the proposed dual-laning of R...

PACKAGE PLANTS FOR SMALL SYSTEMS: A FIELD STUDY

EPA Science Inventory

A joint field study was conducted by AWWA and the Drinking Water Research Division of USEPA to evaluate existing small community systems that use package plant technology. Forty-eight package plant systems representing a geographic and technological cross section were evaluated t...

Safety Study of Double-Decker Motorcoaches with Rear Luggage Compartment

DOT National Transportation Integrated Search

2017-06-06

Section 5510 of Fixing Americas Surface Transportation Act, 2015 (FAST Act) required the Secretary of Transportation to conduct a study on the effects of attaching a luggage compartment to the rear of a double-decker motorcoach, with respect to sa...

Sectioning Coated Specimens Without Edge Rounding

NASA Technical Reports Server (NTRS)

Mckechnie, Timothy N.

1988-01-01

New method devised for preparation of cross sections of coated specimens for scanning electron microscopy or energy-dispersive analysis without rounding edges of coatings. After cutting and polishing, specimen section remains smooth and flat so it can be examined under high magnification out to edge of coating. Sectioned blade first electroplated with hard nickel 0.003 in., then encapsulated in two layers of material: soft conductive material at bottom and 0.25 in. of hard diallyl phthalate at top. Nickel plate provides electrical path from surface of section to conductive material below.

Composite Structure Modeling and Analysis of Advanced Aircraft Fuselage Concepts

NASA Technical Reports Server (NTRS)

Mukhopadhyay, Vivek; Sorokach, Michael R.

2015-01-01

NASA Environmentally Responsible Aviation (ERA) project and the Boeing Company are collabrating to advance the unitized damage arresting composite airframe technology with application to the Hybrid-Wing-Body (HWB) aircraft. The testing of a HWB fuselage section with Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) construction is presently being conducted at NASA Langley. Based on lessons learned from previous HWB structural design studies, improved finite-element models (FEM) of the HWB multi-bay and bulkhead assembly are developed to evaluate the performance of the PRSEUS construction. In order to assess the comparative weight reduction benefits of the PRSEUS technology, conventional cylindrical skin-stringer-frame models of a cylindrical and a double-bubble section fuselage concepts are developed. Stress analysis with design cabin-pressure load and scenario based case studies are conducted for design improvement in each case. Alternate analysis with stitched composite hat-stringers and C-frames are also presented, in addition to the foam-core sandwich frame and pultruded rod-stringer construction. The FEM structural stress, strain and weights are computed and compared for relative weight/strength benefit assessment. The structural analysis and specific weight comparison of these stitched composite advanced aircraft fuselage concepts demonstrated that the pressurized HWB fuselage section assembly can be structurally as efficient as the conventional cylindrical fuselage section with composite stringer-frame and PRSEUS construction, and significantly better than the conventional aluminum construction and the double-bubble section concept.

The Effects of High Scientific Literacy, Self-Efficacy, and Achievement Motivation on Teachers' Ability to Compose Effective Tests: Case Study from Manado, Indonesia

ERIC Educational Resources Information Center

Poluakan, Cosmas

2012-01-01

This research was conducted to determine the effects of high scientific literacy, self-efficacy, and achievement motivation on teachers' ability to compose effective tests. It was conducted among junior high school science teachers in Manado, North Sulawesi Province, Indonesia, from April to September 2011, using a cross-sectional survey design.…

Dietary carbohydrate in relation to cortical and nuclear lens opacities in the Melbourne Visual Impairment Project

USDA-ARS?s Scientific Manuscript database

PURPOSE: In vitro and in vivo animal studies suggest that dietary carbohydrates play a role in cataractogenesis. Few epidemiologic studies have been conducted to evaluate this association. The objective of this study was to examine the cross-sectional associations between total carbohydrate intake, ...

21 CFR 70.55 - Request for scientific studies.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 1 2012-04-01 2012-04-01 false Request for scientific studies. 70.55 Section 70.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR... by any interested person who desires the Food and Drug Administration to conduct scientific studies...

21 CFR 70.55 - Request for scientific studies.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 1 2014-04-01 2014-04-01 false Request for scientific studies. 70.55 Section 70.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR... by any interested person who desires the Food and Drug Administration to conduct scientific studies...

21 CFR 70.55 - Request for scientific studies.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 1 2011-04-01 2011-04-01 false Request for scientific studies. 70.55 Section 70.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR... by any interested person who desires the Food and Drug Administration to conduct scientific studies...

21 CFR 70.55 - Request for scientific studies.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 1 2013-04-01 2013-04-01 false Request for scientific studies. 70.55 Section 70.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR... by any interested person who desires the Food and Drug Administration to conduct scientific studies...

21 CFR 70.55 - Request for scientific studies.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Request for scientific studies. 70.55 Section 70.55 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL COLOR... by any interested person who desires the Food and Drug Administration to conduct scientific studies...

19 CFR 206.44a - Special rules for conducting investigations under section 421(b) of the Trade Act.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 19 Customs Duties 3 2011-04-01 2011-04-01 false Special rules for conducting investigations under section 421(b) of the Trade Act. 206.44a Section 206.44a Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL AND BILATERAL SAFEGUARD ACTIONS, MARKET DISRUPTION, TRADE DIVERSION...

19 CFR 206.44a - Special rules for conducting investigations under section 421(b) of the Trade Act.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 19 Customs Duties 3 2010-04-01 2010-04-01 false Special rules for conducting investigations under section 421(b) of the Trade Act. 206.44a Section 206.44a Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS RELATING TO GLOBAL AND BILATERAL SAFEGUARD ACTIONS, MARKET DISRUPTION, TRADE DIVERSION...

Effective Cross Section of Cold Formed Steel Column Under Axial Compression

NASA Astrophysics Data System (ADS)

Manikandan, P.; Pradeep, T.

2018-06-01

The compressive resistance of cold-formed steel (CFS) section may be governed by local, distortional or overall buckling and any apparent interaction between these modes. A new inventive stiffened CFS section is elected in this study, selected cross sections geometries and lengths are chosen such that all the types of buckling modes are met with. Buckling plot is plotted using linear elastic buckling analysis software (CUFSM). Using the test results obtained in the literature, the developed finite element model is calibrated and furthers a total of 126 parametric study is conducted such as a consequence of dimensions and the length of the cross section, thickness and yield stress. The FEA included relevant material and geometric imperfections. All the columns are analyzed under pin end conditions with axial compression. The analysis results demonstrate that the DSM equations generally assess the strength of stiffened section conservatively. Modifications to the DSM equations are recommended to evaluate the strength of stiffened section more precisely.

The radar cross section of dielectric disks

NASA Technical Reports Server (NTRS)

Levine, D. M.

1982-01-01

A solution is presented for the backscatter (nonstatic) radar cross section of dielectric disks of arbitrary shape, thickness and dielectric constant. The result is obtained by employing a Kirchhoff type approximation to obtain the fields inside the disk. The internal fields induce polarization and conduction currents from which the scattered fields and the radar cross section can be computed. The solution for the radar cross section obtained in this manner is shown to agree with known results in the special cases of normal incidence, thin disks and perfect conductivity. The solution can also be written as a product of the reflection coefficient of an identically oriented slab times the physical optics solution for the backscatter cross section of a perfectly conducting disk of the same shape. This result follows directly from the Kirchhoff type approximation without additional assumptions.

Relationship between Online Learning Readiness and Structure and Interaction of Online Learning Students

ERIC Educational Resources Information Center

Demir Kaymak, Zeliha; Horzum, Mehmet Baris

2013-01-01

Current study tried to determine whether a relationship exists between readiness levels of the online learning students for online learning and the perceived structure and interaction in online learning environments. In the study, cross sectional survey model was used. The study was conducted with 320 voluntary students studying online learning…

78 FR 5542 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-25

... with which they conduct business. In January 2011, Commission staff released its Study and...-Dealers (``Study''),\\3\\ in furtherance of Section 919B of the Dodd-Frank Act. The Study contains four... Investment Adviser Public Disclosure (``IAPD'') database. In May 2012, FINRA implemented the Study's three...

29 CFR 1607.7 - Use of other validity studies.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 29 Labor 4 2011-07-01 2011-07-01 false Use of other validity studies. 1607.7 Section 1607.7 Labor... EMPLOYEE SELECTION PROCEDURES (1978) General Principles § 1607.7 Use of other validity studies. A. Validity studies not conducted by the user. Users may, under certain circumstances, support the use of selection...

Faculty Self-Study in the Elementary School. Working Papers. Revised Edition 1973.

ERIC Educational Resources Information Center

Pennsylvania State Dept. of Education, Harrisburg. Bureau of Planning and Evaluation.

This guide for the study of a school district by its faculty members and administrators, along with parents, begins with suggested procedures for initiating and conducting a self-study. The guide itself contains two major sections: comprehensive study areas and content study areas. Included in the comprehensive areas for study are administration…

Comprehensive evaluation of compaction of asphalt pavements and development of compaction monitoring system.

DOT National Transportation Integrated Search

2012-04-01

This study aimed to conduct a comprehensive evaluation of compaction of asphalt pavements and : develop software for monitoring field compaction in real time. In the first phase of this study, the researchers : built several test sections that were c...

LTPP Computed Parameter: Moisture Content

DOT National Transportation Integrated Search

2008-01-01

A study was conducted to compute in situ soil parameters based on time domain reflectometry (TDR) traces obtained from Long Term Pavement Performance (LTPP) test sections instrumented for the seasonal monitoring program (SMP). Ten TDR sensors were in...

Benefits and Costs of the Clean Air Act

EPA Pesticide Factsheets

Congress added to the 1990 Clean Air Act Amendments a requirement under section 812 that EPA conduct periodic, scientifically reviewed studies to assess the benefits and the costs of the entire Clean Air Act.

Impact of ambient air pollution on physical activity among adults: a systematic review and meta-analysis.

PubMed

An, Ruopeng; Zhang, Sheng; Ji, Mengmeng; Guan, Chenghua

2018-03-01

This study systematically reviewed literature regarding the impact of ambient air pollution on physical activity among children and adults. Keyword and reference search was conducted in PubMed and Web of Science to systematically identify articles meeting all of the following criteria - study designs: interventions or experiments, retrospective or prospective cohort studies, cross-sectional studies, and case-control studies; subjects: adults; exposures: specific air pollutants and overall air quality; outcomes: physical activity and sedentary behaviour; article types: peer-reviewed publications; and language: articles written in English. Meta-analysis was performed to estimate the pooled effect size of ambient PM 2.5 air pollution on physical inactivity. Seven studies met the inclusion criteria. Among them, six were conducted in the United States, and one was conducted in the United Kingdom. Six adopted a cross-sectional study design, and one used a prospective cohort design. Six had a sample size larger than 10,000. Specific air pollutants assessed included PM 2.5 , PM 10 , O 3 , and NO x , whereas two studies focused on overall air quality. All studies found air pollution level to be negatively associated with physical activity and positively associated with leisure-time physical inactivity. Study participants, and particularly those with respiratory disease, self-reported a reduction in outdoor activities to mitigate the detrimental impact of air pollution. Meta-analysis revealed a one unit (μg/m 3 ) increase in ambient PM 2.5 concentration to be associated with an increase in the odds of physical inactivity by 1.1% (odds ratio = 1.011; 95% confidence interval = 1.001, 1.021; p-value < .001) among US adults. Existing literature in general suggested that air pollution discouraged physical activity. Current literature predominantly adopted a cross-sectional design and focused on the United States. Future studies are warranted to implement a longitudinal study design and evaluate the impact of air pollution on physical activity in heavily polluted developing countries.

Nanowire structures and electrical devices

DOEpatents

Bezryadin, Alexey; Remeika, Mikas

2010-07-06

The present invention provides structures and devices comprising conductive segments and conductance constricting segments of a nanowire, such as metallic, superconducting or semiconducting nanowire. The present invention provides structures and devices comprising conductive nanowire segments and conductance constricting nanowire segments having accurately selected phases including crystalline and amorphous states, compositions, morphologies and physical dimensions, including selected cross sectional dimensions, shapes and lengths along the length of a nanowire. Further, the present invention provides methods of processing nanowires capable of patterning a nanowire to form a plurality of conductance constricting segments having selected positions along the length of a nanowire, including conductance constricting segments having reduced cross sectional dimensions and conductance constricting segments comprising one or more insulating materials such as metal oxides.

EFFECTIVENESS OF THE PM 2.5 FEDERAL REFERENCE METHOD TO DIFFERENTIATE FINE AND COARSE MODE AEROSOL (A RESPONSE TO SECTION 6102(E) OF THE TRANSPORTATION EQUITY ACT FOR THE 21ST CENTURY

EPA Science Inventory

This report is submitted in response to Section 6102(e) of the Transportation Equity Act for the 21st Century, which states:

"The Administrator shall conduct a field study of the ability of the PM2.5 Federal Reference Method to differentiate those particles that ...

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

Carter, Jessica A.; McMichael, Geoffrey A.; Welch, Ian D.

To facilitate preparing Biological Assessments of proposed channel maintenance projects, the Portland District of the U.S. Army Corps of Engineers contracted the Pacific Northwest National Laboratory to consolidate and synthesize available information about the use of the lower Columbia River and estuary by juvenile anadromous salmonids. The information to be synthesized included existing published documents as well as data from five years (2004-2008) of acoustic telemetry studies conducted in the Columbia River estuary using the Juvenile Salmon Acoustic Telemetry System. For this synthesis, the Columbia River estuary includes the section of the Columbia River from Bonneville Dam at river kilometermore » (Rkm) 235 downstream to the mouth where it enters the Pacific Ocean. In this report, we summarize the seasonal salmonid presence and migration patterns in the Columbia River estuary based on information from published studies as well as relevant data from acoustic telemetry studies conducted by NOAA Fisheries and the Pacific Northwest National Laboratory (PNNL) between 2004 and 2008. Recent acoustic telemetry studies, conducted using the Juvenile Salmon Acoustic Telemetry System (JSATS; developed by the Portland District of the U.S. Army Corps of Engineers), provided information on the migratory behavior of juvenile steelhead (O. mykiss) and Chinook salmon in the Columbia River from Bonneville Dam to the Pacific Ocean. In this report, Section 2 provides a summary of information from published literature on the seasonal presence and migratory behavior of juvenile salmonids in the Columbia River estuary and plume. Section 3 presents a detailed synthesis of juvenile Chinook salmon and steelhead migratory behavior based on use of the JSATS between 2004 and 2008. Section 4 provides a discussion of the information summarized in the report as well as information drawn from literature reviews on potential effects of channel maintenance activities to juvenile salmonids rearing in or migrating through the Columbia River estuary and plume.« less

Pacific Northwest Laboratory annual report for 1989 to the DOE Office of Energy Research - Part 1: Biomedical Sciences

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

Park, J.F.

This report summarizes progress on OHER human health, biological, general life sciences, and medical applications research programs conducted at PNL in FY 1989. The research develops the knowledge and scientific principles necessary to identify, understand, and anticipate the long-term health consequences of energy-related radiation and chemicals. Our continuing emphasis is to decrease the uncertainty of health risk estimates from existing and developing energy-related technologies through an increased understanding of how radiation and chemicals cause biological damage. The sequence of this report of PNL research reflects the OHER programmatic structure. The first section, on human health research, concerns statistical and epidemiologicalmore » studies for assessing health risks. The next section contains reports of biological research in laboratory animals and in vitro cell systems, including research with radionuclides and chemicals. The general life sciences research section reports research conducted for the OHER human genome research program, and the medical applications section summarizes commercial radioisotope production and distribution activities at DOE facilities. 6 refs., 50 figs., 35 tabs.« less

Correction of sampling bias in a cross-sectional study of post-surgical complications.

PubMed

Fluss, Ronen; Mandel, Micha; Freedman, Laurence S; Weiss, Inbal Salz; Zohar, Anat Ekka; Haklai, Ziona; Gordon, Ethel-Sherry; Simchen, Elisheva

2013-06-30

Cross-sectional designs are often used to monitor the proportion of infections and other post-surgical complications acquired in hospitals. However, conventional methods for estimating incidence proportions when applied to cross-sectional data may provide estimators that are highly biased, as cross-sectional designs tend to include a high proportion of patients with prolonged hospitalization. One common solution is to use sampling weights in the analysis, which adjust for the sampling bias inherent in a cross-sectional design. The current paper describes in detail a method to build weights for a national survey of post-surgical complications conducted in Israel. We use the weights to estimate the probability of surgical site infections following colon resection, and validate the results of the weighted analysis by comparing them with those obtained from a parallel study with a historically prospective design. Copyright © 2012 John Wiley & Sons, Ltd.

Thermal conductivity engineering of bulk and one-dimensional Si-Ge nanoarchitectures.

PubMed

Kandemir, Ali; Ozden, Ayberk; Cagin, Tahir; Sevik, Cem

2017-01-01

Various theoretical and experimental methods are utilized to investigate the thermal conductivity of nanostructured materials; this is a critical parameter to increase performance of thermoelectric devices. Among these methods, equilibrium molecular dynamics (EMD) is an accurate technique to predict lattice thermal conductivity. In this study, by means of systematic EMD simulations, thermal conductivity of bulk Si-Ge structures (pristine, alloy and superlattice) and their nanostructured one dimensional forms with square and circular cross-section geometries (asymmetric and symmetric) are calculated for different crystallographic directions. A comprehensive temperature analysis is evaluated for selected structures as well. The results show that one-dimensional structures are superior candidates in terms of their low lattice thermal conductivity and thermal conductivity tunability by nanostructuring, such as by diameter modulation, interface roughness, periodicity and number of interfaces. We find that thermal conductivity decreases with smaller diameters or cross section areas. Furthermore, interface roughness decreases thermal conductivity with a profound impact. Moreover, we predicted that there is a specific periodicity that gives minimum thermal conductivity in symmetric superlattice structures. The decreasing thermal conductivity is due to the reducing phonon movement in the system due to the effect of the number of interfaces that determine regimes of ballistic and wave transport phenomena. In some nanostructures, such as nanowire superlattices, thermal conductivity of the Si/Ge system can be reduced to nearly twice that of an amorphous silicon thermal conductivity. Additionally, it is found that one crystal orientation, [Formula: see text]100[Formula: see text], is better than the [Formula: see text]111[Formula: see text] crystal orientation in one-dimensional and bulk SiGe systems. Our results clearly point out the importance of lattice thermal conductivity engineering in bulk and nanostructures to produce high-performance thermoelectric materials.

Thermal conductivity engineering of bulk and one-dimensional Si-Ge nanoarchitectures

PubMed Central

Kandemir, Ali; Ozden, Ayberk; Cagin, Tahir; Sevik, Cem

2017-01-01

Various theoretical and experimental methods are utilized to investigate the thermal conductivity of nanostructured materials; this is a critical parameter to increase performance of thermoelectric devices. Among these methods, equilibrium molecular dynamics (EMD) is an accurate technique to predict lattice thermal conductivity. In this study, by means of systematic EMD simulations, thermal conductivity of bulk Si-Ge structures (pristine, alloy and superlattice) and their nanostructured one dimensional forms with square and circular cross-section geometries (asymmetric and symmetric) are calculated for different crystallographic directions. A comprehensive temperature analysis is evaluated for selected structures as well. The results show that one-dimensional structures are superior candidates in terms of their low lattice thermal conductivity and thermal conductivity tunability by nanostructuring, such as by diameter modulation, interface roughness, periodicity and number of interfaces. We find that thermal conductivity decreases with smaller diameters or cross section areas. Furthermore, interface roughness decreases thermal conductivity with a profound impact. Moreover, we predicted that there is a specific periodicity that gives minimum thermal conductivity in symmetric superlattice structures. The decreasing thermal conductivity is due to the reducing phonon movement in the system due to the effect of the number of interfaces that determine regimes of ballistic and wave transport phenomena. In some nanostructures, such as nanowire superlattices, thermal conductivity of the Si/Ge system can be reduced to nearly twice that of an amorphous silicon thermal conductivity. Additionally, it is found that one crystal orientation, <100>, is better than the <111> crystal orientation in one-dimensional and bulk SiGe systems. Our results clearly point out the importance of lattice thermal conductivity engineering in bulk and nanostructures to produce high-performance thermoelectric materials. PMID:28469733

78 FR 49520 - Scientific Information Request on Imaging Techniques for the Surveillance, Diagnosis, and Staging...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-14

... conducting this comparative effectiveness review pursuant to Section 1013 of the Medicare Prescription Drug... summary, including the following elements: study number, study period, design, methodology, indication and... period, design, methodology, indication and diagnosis, proper use instructions, inclusion and exclusion...

Community Exposure to Air Manganese and Motor and Cognitive Outcomes

EPA Science Inventory

Although manganese (Mn) is an essential nutrient, occupational studies have shown inhaling high levels of Mn can lead to adverse nervous system health effects. Few studies have examined the health effects of air-Mn exposure on adults in a community. We conducted a cross-sectional...

Occupational-Technical Curriculum Development TV Study.

ERIC Educational Resources Information Center

McClure, Lyndon

Section I of this report provides a brief review of various experiments and studies conducted in the United States and abroad on the effectiveness of televised occupational-technical courses. Issues discussed include the packaging of televised instruction; the need for preproduction testing; the limitations of television teaching; teacher and…

Thermoelastic damping in microrings with circular cross-section

NASA Astrophysics Data System (ADS)

Li, Pu; Fang, Yuming; Zhang, Jianrun

2016-01-01

Predicting thermoelastic damping (TED) is crucial in the design of high Q micro-resonators. Microrings are often critical components in many micro-resonators. Some analytical models for TED in microrings have already been developed in the past. However, the previous works are limited to the microrings with rectangular cross-section. The temperature field in the rectangular cross-section is one-dimensional. This paper deals with TED in the microrings with circular cross-section. The temperature field in the circular cross-section is two-dimensional. This paper first presents a 2-D analytical model for TED in the microrings with circular cross-section. Only the two-dimensional heat conduction in the circular cross-section is considered. The heat conduction along the circumferential direction of the microring is neglected in the 2-D model. Then the 2-D model has been extended to cover the circumferential heat conduction, and a 3-D analytical model for TED has been developed. The analytical results from the present 2-D and 3-D models show good agreement with the numerical results of FEM model. The limitations of the present 2-D analytical model are assessed.

Social Anxiety Disorder and Victimization in a Community Sample of Adolescents

ERIC Educational Resources Information Center

Gren-Landell, Malin; Aho, Nikolas; Andersson, Gerhard; Svedin, Carl Goran

2011-01-01

Despite high prevalence rates of social anxiety disorder (SAD) and high rates of victimization in adolescents, studies on the relationship between these phenomena are missing. In the present study we report associations between SAD and multiple victimization experiences in a community sample of adolescents. A cross-sectional study was conducted on…

38 CFR 1.517 - Disclosure of vocational rehabilitation and education information to educational institutions...

Code of Federal Regulations, 2010 CFR

2010-07-01

... for the use of vocational rehabilitation and education records for research studies will be forwarded... Benefits. Where the request to conduct a research study is approved by the Under Secretary for Benefits, the facility head is authorized by this section to release information for such studies from...

38 CFR 1.517 - Disclosure of vocational rehabilitation and education information to educational institutions...

Code of Federal Regulations, 2011 CFR

2011-07-01

... for the use of vocational rehabilitation and education records for research studies will be forwarded... Benefits. Where the request to conduct a research study is approved by the Under Secretary for Benefits, the facility head is authorized by this section to release information for such studies from...

Intimate Partner Violence among General and Urban Poor Populations in Kathmandu, Nepal

ERIC Educational Resources Information Center

Oshiro, Azusa; Poudyal, Amod K.; Poudel, Krishna C.; Jimba, Masamine; Hokama, Tomiko

2011-01-01

Comparative studies are lacking on intimate partner violence (IPV) between urban poor and general populations. The objective of this study is to identify the prevalence and risk factors of physical IPV among the general and poor populations in urban Nepal. A cross-sectional study was conducted by structured questionnaire interview. Participants…

Alternative Fuels Data Center

Science.gov Websites

available through the RFS Program website. Section 203 Feedstock Impact Study of RFS DOE Requires DOE to work with NAS to conduct a study and issue a report on the impacts of the RFS program, including , USDA Requires a study to report on the current and future environmental and resource conservation

RF tuning element

NASA Technical Reports Server (NTRS)

McGrath, William R. (Inventor); Lubecke, Victor M. (Inventor)

1992-01-01

A device for tuning a circuit includes a substrate, a transmission line on the substrate that includes first and second conductors coupled to a circuit to be tuned, and a movable short-circuit for varying the impedance the transmission line presents to the circuit to be tuned. The movable short-circuit includes a dielectric layer disposed atop the transmission line and a distributed shorting element in the form of a conductive member that is configured to be slid along at least a portion of the transmission line atop the dielectric layer. The conductive member is configured to span the first and second conductors of the transmission line and to define at least a first opening that spans the two conductors so that the conductive member includes first and second sections separated by the first opening. The first and second sections of the conductive member combine with the first and second conductors of the transmission line to form first and second low impedance sections of transmission line, and the opening combines with the first and second conductors of the transmission line and the dielectric layer to form a first high impedance section of transmission line intermediate the first and second low impedance sections. Each of the first low impedance section and the first high impedance section have a length along the transmission line of approximately one-quarter wavelength, thus providing a periodic variation of transmission line impedance. That enhances reflection of rf power.

[Application of cohort study in cancer prevention and control].

PubMed

Dai, Min; Bai, Yana; Pu, Hongquan; Cheng, Ning; Li, Haiyan; He, Jie

2016-03-01

Cancer control is a long-term work. Cancer research and intervention really need the support of cohort study. In the recent years, more and more cohort studies on cancer control were conducted in China along with the increased ability of scientific research in China. Since 2010, Cancer Hospital, Chinese Academy of Medical Sciences, collaborated with Lanzhou University and the Worker' s Hospital of Jinchuan Group Company Limited, have carried out a large-scale cohort study on cancer, which covered a population of more than 50 000 called " Jinchang cohort". Since 2012, a National Key Public Health Project, "cancer screening in urban China" , has been conducted in Jinchang, which strengthened the Jinchang cohort study. Based on the Jinchang cohort study, historical cohort study, cross-sectional study and prospective cohort study have been conducted, which would provide a lot of evidence for the cancer control in China.

Development of improved overlay thickness design alternatives for local roads.

DOT National Transportation Integrated Search

2015-07-01

In this research study, 20 pavement sections were selected from six counties in Illinois, with varying : structural and traffic characteristics. Falling weight deflectometer (FWD) tests were conducted on these : road segments to determine and monitor...

Elevated temperature crack growth

NASA Technical Reports Server (NTRS)

Kim, K. S.; Vanstone, R. H.; Malik, S. N.; Laflen, J. H.

1988-01-01

A study was performed to examine the applicability of path-independent (P-I) integrals to crack growth problems in hot section components of gas turbine aircraft engines. Alloy 718 was used and the experimental parameters included combined temperature and strain cycling, thermal gradients, elastic-plastic strain levels, and mean strains. A literature review was conducted of proposed P-I integrals, and those capable of analyzing hot section component problems were selected and programmed into the postprocessor of a finite element code. Detailed elastic-plastic finite element analyses were conducted to simulate crack growth and crack closure of the test specimen, and to evaluate the P-I integrals. It was shown that the selected P-I integrals are very effective for predicting crack growth for isothermal conditions.

Investigating the Effect of Academic Procrastination on the Frequency and Variety of Academic Misconduct: A Panel Study

ERIC Educational Resources Information Center

Patrzek, Justine; Sattler, Sebastian; van Veen, Floris; Grunschel, Carola; Fries, Stefan

2015-01-01

In prior studies, academic procrastination has been discussed as an influencing factor of academic misconduct. However, empirical studies were conducted solely cross-sectionally and investigated only a few forms of academic misconduct. This large scale web-based study examined the responses of between 1359 and 2207 participants from different…

Teachers' Attitudes toward Technology Integration in Schools: A Four-Year Study

ERIC Educational Resources Information Center

Liu, Yuliang; Szabo, Zsuzsanna

2009-01-01

This trend study was designed to examine a current trend and pattern, as well as a development of teachers' concerns about technology integration in the curriculum. The study was conducted by repeated cross-sectional studies, applying the same research instrument to different samples of subjects at different points, over a period of four years…

Readmissions for surgical site infections following caesarean section.

PubMed

El-Achi, Vanessa; Wan, King Man; Brown, James; Marshall, Drew; McGee, Therese

2018-03-05

This retrospective study was conducted to identify the incidence and characteristics associated with readmissions for surgical site infections following caesarean section in a tertiary hospital from 2012 to 2015. Of 6334 patients who underwent caesarean section, 165 (2.6%) were readmitted, most commonly for surgical site infection (25.5%, n = 42). Thirty-seven of these patients (88%) had an emergency caesarean compared to five (12%) following an elective caesarean section. Of the women with surgical site infections, 69% were overweight and 14% had diabetes. Emergency caesarean sections were responsible for the majority of readmissions, particularly in women with co-morbidities that predisposed them to infection. © 2018 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.

Nuclear stopping in central Xe+Sn collisions: Confrontation with experimental data

NASA Astrophysics Data System (ADS)

Rajni, Vermani, Yogesh K.

2018-05-01

The influence of symmetry energy and cross section on nuclear stopping is studied in central 54129Xe+50 120Sn Sn collisions at Fermi energies (Elab≈ 20-100 MeV/nucleon). The analysis is conducted using isospin dependent quantum molecular dynamics (IQMD) transport model. Model calculations are done using reduced isospin dependent nucleon-nucleon cross section (σiso) and isospin independent cross section (σnoiso). Calculations using the two versions of cross section are analyzed with and without symmetry energy (Esym). The results are then compared with the experimental data taken with 4π multidetector INDRA. From this comparison, we conclude that nuclear stopping and related production of light charged particles (LCPs) are strongly influenced by isospin dependence of nucleon-nucleon cross section.

Fluid Dynamic and Stability Analysis of a Thin Liquid Sheet

NASA Technical Reports Server (NTRS)

McMaster, Matthew S.

1992-01-01

Interest in thin sheet flows has recently been renewed due to their potential application in space radiators. Theoretical and experimental studies of the fluid dynamics and stability of thin liquid sheet flows have been carried out in this thesis. A computer program was developed to determine the cross-sectional shape of the edge cylinder given the cross-sectional area of the edge cylinder. A stability analysis was performed on a non-planer liquid sheet. A study was conducted to determine the effects of air resistance on the sheet.

Self-Esteem and Body Image Perception in a Sample of University Students

ERIC Educational Resources Information Center

Pop, Cristiana

2016-01-01

Problem Statement: This cross-sectional study was conducted to determine the relationship established between self-esteem and body image dissatisfaction, as subjective variables among young, female Romanian university students. Purpose of Study: We hypothesize that young women's body dissatisfaction is related to their self-esteem level. The…

The Rise and Fall of Diversity Training.

ERIC Educational Resources Information Center

Easter, Marilyn

The effectiveness of diversity training in eliminating racial stereotypes in the workplace and modifying employees' negative attitudes toward diversity was examined in a study conducted at a private nonprofit college in the San Francisco Bay area. The study sample consisted of 80 nontraditional students from 4 sections of a course titled Managing…

Language in Ageing Persons with Down Syndrome.

ERIC Educational Resources Information Center

Rondal, Jean A.; Comblain, Annick

2002-01-01

Several cross-sectional studies and one longitudinal study were conducted on the language abilities of various cohorts of persons with Down syndrome (ages 14-50). A gradual decrease in global cerebral metabolic rate (CMR) for both hemispheres and for each participant was documented, however, no language deterioration could be associated with CMR…

34 CFR 657.2 - Who is eligible to receive an allocation of fellowships?

Code of Federal Regulations, 2011 CFR

2011-07-01

...) OFFICE OF POSTSECONDARY EDUCATION, DEPARTMENT OF EDUCATION FOREIGN LANGUAGE AND AREA STUDIES FELLOWSHIPS...; (2) Teaches modern foreign languages under a program described in paragraph (b) of this section; and... foreign languages are commonly used; or (ii) Conducts training and research in international studies, the...

34 CFR 657.2 - Who is eligible to receive an allocation of fellowships?

Code of Federal Regulations, 2010 CFR

2010-07-01

...) OFFICE OF POSTSECONDARY EDUCATION, DEPARTMENT OF EDUCATION FOREIGN LANGUAGE AND AREA STUDIES FELLOWSHIPS...; (2) Teaches modern foreign languages under a program described in paragraph (b) of this section; and... foreign languages are commonly used; or (ii) Conducts training and research in international studies, the...

Teenage Nutrition and Physique.

ERIC Educational Resources Information Center

Huenemann, Ruth L.; And Others

Body size, composition, and conformation in a teen-age population, and associated factors were studied to obtain useful data for planning programs in public health nutrition. This book describes the purpose, methods, and findings of this four-year longitudinal and cross-sectional study conducted in Berkeley, California, during the years 1961 to…

Hypertension, Hyperglycemia, and Hyperlipemia among Adolescents with Intellectual Disabilities

ERIC Educational Resources Information Center

Lin, Pei-Ying; Lin, Lan-Ping; Lin, Jin-Ding

2010-01-01

The present paper aims to assess the hypertension, hyperglycemia and hyperlipidemia prevalence of adolescents with intellectual disabilities, and to recognize the health disparities between the study participants and the general population. This study conducted a cross-sectional medical chart analysis of 856 students who participated in school…

Key Skills Influencing Student Achievement

ERIC Educational Resources Information Center

Balch, Tonya; Gruenert, Steve

2009-01-01

A predictive, non-experimental, cross-sectional design (Johnson, 2001) was used to conduct a study to determine if elementary administrators' key counseling skills and select demographics predicted state-level student performance indicators in their respective schools. A secondary purpose of this study was to develop a valid and reliable on-line…

Water homeostasis, frailty and congnitive function in the nursing home

USDA-ARS?s Scientific Manuscript database

The goal of this study is to develop and test a practical clinical method to assess frailty in nursing homes and to investigate the relationship between cognitive status of the elderly and the balance between water compartments of their body composition. This is a cross-sectional study, conducted a...

75 FR 66822 - Study on Extraterritorial Private Rights of Action

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-29

... Extraterritorial Private Rights of Action AGENCY: Securities and Exchange Commission. ACTION: Request for Comments... and thereafter conduct a study to determine the extent to which private rights of action under the... United States to bring actions under Section 10(b) in cases involving transnational securities fraud...

Domestic Violence Assessments in the Child Advocacy Center

ERIC Educational Resources Information Center

Thackeray, Jonathan D.; Scribano, Philip V.; Rhoda, Dale

2010-01-01

Objective: This study was designed to identify the frequency, methods, and practices of universal assessments for domestic violence (DV) within child advocacy centers (CACs) and determine which factors are associated with CACs that conduct universal DV assessments. Methods: The study design was a cross-sectional, web-based survey distributed to…

Flexural fatigue life prediction of closed hat-section using materially nonlinear axial fatigue characteristics

NASA Technical Reports Server (NTRS)

Razzaq, Zia

1989-01-01

Straight or curved hat-section members are often used as structural stiffeners in aircraft. For instance, they are employed as stiffeners for the dorsal skin as well as in the aerial refueling adjacent area structure in F-106 aircraft. The flanges of the hat-section are connected to the aircraft skin. Thus, the portion of the skin closing the hat-section interacts with the section itself when resisting the stresses due to service loads. The flexural fatigue life of such a closed section is estimated using materially nonlinear axial fatigue characteristics. It should be recognized that when a structural shape is subjected to bending, the fatigue life at the neutral axis is infinity since the normal stresses are zero at that location. Conversely, the fatigue life at the extreme fibers where the normal bending stresses are maximum can be expected to be finite. Thus, different fatigue life estimates can be visualized at various distances from the neural axis. The problem becomes compounded further when significant portions away from the neutral axis are stressed into plastic range. A theoretical analysis of the closed hat-section subjected to flexural cyclic loading is first conducted. The axial fatigue characteristics together with the related axial fatigue life formula and its inverted form given by Manson and Muralidharan are adopted for an aluminum alloy used in aircraft construction. A closed-form expression for predicting the flexural fatigue life is then derived for the closed hat-section including materially nonlinear action. A computer program is written to conduct a study of the variables such as the thicknesses of the hat-section and the skin, and the type of alloy used. The study has provided a fundamental understanding of the flexural fatigue life characteristics of a practical structural component used in aircraft when materially nonlinear action is present.

Indication and method of frozen section in vaginal radical trachelectomy.

PubMed

Chênevert, Jacinthe; Têtu, Bernard; Plante, Marie; Roy, Michel; Renaud, Marie-Claude; Grégoire, Jean; Grondin, Katherine; Dubé, Valérie

2009-09-01

Vaginal radical trachelectomy (VRT) is a fertility-sparing surgical technique used as an alternative to radical hysterectomy in early stage cervical carcinoma. With the advent of VRT, preoperative evaluation of the surgical margin has become imperative, because if the tumor is found within 5 mm of the endocervical margin, additional surgical resection is required. In a study published earlier from our center, we came to the conclusion that a frozen section should be conducted only when a cancerous lesion is grossly visible, and that it could be omitted in normal-looking specimens or VRT with nonspecific lesions. Since then, 53 VRT have been performed in our center, and frozen sections were conducted according to these recommendations. Fifteen VRT were grossly normal, 24 had a nonspecific lesion and 14 showed a grossly visible lesion. Final margins were satisfactory on all 15 grossly normal specimens. Of the 24 VRT with nonspecific lesions, 2 cases for which no frozen section was performed had unsatisfactory final margins (<5 mm). Of the 14 VRT with grossly visible lesions, 3 cases were inadequately evaluated by frozen section due to sampling errors, which led to unsatisfactory final margin assessment. These results confirm that a frozen section can be omitted on normal looking VRT specimens, but contrary to results published earlier, we recommend that a frozen section be performed on all VRT with nonspecific lesions. As for VRT with a grossly visible lesion, frozen section evaluation is still warranted, and we recommend increasing the sampling to improve the adequacy of frozen sections.

Cerebellar Gray Matter Density in Females with ADHD Combined Type: A Cross-Sectional Voxel-Based Morphometry Study

ERIC Educational Resources Information Center

Almeida Montes, Luis Guillermo; Ricardo-Garcell, Josefina; De la Torre, Lazaro Barajas; Prado Alcantara, Hugo; Martinez Garcia, Reyna Beatriz; Avila Acosta, David; Fernandez Bouzas, Antonio

2011-01-01

Background: MRI studies have shown a decreased cerebellum volume in individuals with ADHD. However, most of these studies were conducted with male children, many of whom were medicated with stimulants. As such, unmedicated, non-White girls are underrepresented in such MRI studies. Objective: The aim of the present study was to compare the density…

Rate of caesarean sections according to the Robson classification: Analysis in a French perinatal network - Interest and limitations of the French medico-administrative data (PMSI).

PubMed

Lafitte, A-S; Dolley, P; Le Coutour, X; Benoist, G; Prime, L; Thibon, P; Dreyfus, M

2018-02-01

The objective of our study was to determine, in accordance with WHO recommendations, the rates of Caesarean sections in a French perinatal network according to the Robson classification and determine the benefit of the medico-administrative data (PMSI) to collect this indicator. This study aimed to identify the main groups contributing to local variations in the rates of Caesarean sections. A descriptive multicentric study was conducted in 13 maternity units of a French perinatal network. The rates of Caesarean sections and the contribution of each group of the Robson classification were calculated for all Caesarean sections performed in 2014. The agreement of the classification of Caesarean sections according to Robson using medico-administrative data and data collected in the patient records was measured by the Kappa index. We also analysed a 6 groups simplified Robson classification only using data from PMSI, which do not inform about parity and onset of labour. The rate of Caesarean sections was 19% (14.5-33.2) in 2014 (2924 out of 15413 deliveries). The most important contributors to the total rates were groups 1, 2 and 5, representing respectively 14.3%, 16.7% and 32.1% of the Caesarean sections. The rates were significantly different in level 1, 2b and 3 maternity units in groups 1 to 4, level 2a maternity units in group 5, and level 3 maternity units in groups 6 and 7. The agreement between the simplified Robson classification produced using the medical records and the medico-administrative data was excellent, with a Kappa index of 0.985 (0.980-0.990). To reduce the rates of Caesarean sections, audits should be conducted on groups 1, 2 and 5 and local protocols developed. Simply by collecting the parity data, the excellent metrological quality of the medico-administrative data would allow systematisation of the Robson classification for each hospital. Copyright © 2017. Published by Elsevier Masson SAS.

Free-boundary toroidal Alfvén eigenmodes

NASA Astrophysics Data System (ADS)

Chen, Eugene Y.; Berk, H. L.; Breizman, B.; Zheng, L. J.

2011-05-01

A numerical study is presented for the n = 1 free-boundary toroidal Alfvén eigenmodes (TAE) in tokamaks, which shows that there is considerable sensitivity of n = 1 modes to the position of the conducting wall. An additional branch of the TAE is shown to emerge from the upper continuum as the ratio of conducting wall radius to plasma radius increases. Such phenomena arise in plasma equilibria with both circular and shaped cross sections, where the shaped profile studied here is similar to that found in Alcator C-Mod.

Knowledge, awareness, and perception of contraception among senior pharmacy students in Malaysia: A pilot study

PubMed Central

Elkalmi, Ramadan M.; Khan, Muhammad Umair; Ahmad, Akram; Srikanth, Akshaya B.; Abdurhaman, Norny Syafinase; Jamshed, Shazia Q.; Awad, Ammar Ihsan; Binti Ab Hadi, Hazrina

2015-01-01

Objective: This study aimed to assess the knowledge, awareness, and perception of contraception among senior pharmacy students of a public sector university in Malaysia. Methods: A cross-sectional, questionnaire-based study was conducted among senior pharmacy students. The pretested questionnaire was used to collect data from the participants over the period of 1-month. The questionnaire was divided into four sections, for gathering the information about students’ demographic data, and their knowledge, attitudes, and perception toward contraception. Data were statistically analyzed using SPSS version 20. Findings: The response rate was 68.6%. The results showed that the contraceptive knowledge was comparatively higher in year four students (P < 0.001), married respondents (P < 0.001) and those taking elective courses (P = 0.022) as compared to their respective counterparts. Majority of the students were well aware and had a positive perception about contraception. Conclusion: Overall findings reflect that the majority of the students had good knowledge, perception, and awareness about contraception. The study recommends future studies to be conducted covering different pharmacy schools across the country to further establish the results. PMID:25984548

Hearing loss in workers exposed to epoxy adhesives and noise: a cross-sectional study

PubMed Central

Yang, Hsiao-Yu; Shie, Ruei-Hao; Chen, Pau-Chung

2016-01-01

Objectives Epoxy adhesives contain organic solvents and are widely used in industry. The hazardous effects of epoxy adhesives remain unclear. The objective of this study was to investigate the risk of hearing loss among workers exposed to epoxy adhesives and noise. Design Cross-sectional study. Methods For this cross-sectional study, we recruited 182 stone workers who were exposed to both epoxy adhesives and noise, 89 stone workers who were exposed to noise only, and 43 workers from the administrative staff who had not been exposed to adhesives or noise. We obtained demographic data, occupational history and medical history through face-to-face interviews and arranged physical examinations and pure-tone audiometric tests. We also conducted walk-through surveys in the stone industry. A total of 40 representative noise assessments were conducted in 15 workplaces. Air sampling was conducted at 40 workplaces, and volatile organic compounds were analysed using the Environmental Protection Agency (EPA) TO-15 method. Results The mean sound pressure level was 87.7 dBA (SD 9.9). The prevalence of noise-induced hearing loss was considerably increased in the stone workers exposed to epoxy adhesives (42%) compared with the stone workers who were not exposed to epoxy adhesives (21%) and the administrative staff group (9.3%). A multivariate logistic regression analysis revealed that exposure to epoxy adhesives significantly increased the risk of hearing loss between 2 and 6 kHz after adjusting for age. Significant interactions between epoxy adhesives and noise and hearing impairment were observed at 3, 4 and 6 kHz. Conclusions Epoxy adhesives exacerbate hearing impairment in noisy environments, with the main impacts occurring in the middle and high frequencies. PMID:26892792

Bisphenol A; Final Test Rule

EPA Pesticide Factsheets

EPA is issuing a final rule, under section 4 of the Toxic Substances Control Act (TSCA) requiring manufacturers and processors of bisphenol A, hereinafter BPA, (4.4’-isopropylidenediphenol, CAS No. 80-05—7) to conduct a 90-day inhalation study.

Long term pavement performance computed parameter : moisture content

DOT National Transportation Integrated Search

2008-01-01

A study was conducted to compute in situ soil parameters based on time domain reflectometry (TDR) traces obtained from Long Term Pavement Performance (LTPP) test sections instrumented for the seasonal monitoring program (SMP). Ten TDR sensors were in...

3D modelling of the human thorax for ventilation distribution measured through electrical impedance tomography

NASA Astrophysics Data System (ADS)

Fan, W. R.; Wang, H. X.

2010-11-01

Thoracic electrical impedance tomography (EIT) aims to reconstruct a cross-sectional image of the internal spatial distribution of conductivity from electrical measurements made by injecting small alternating currents via an electrode array placed on the surface of the thorax. It is a non-invasive, radiation-free monitoring technique. In this paper, true 3D thorax models with conductivity distribution or complex conductivity distribution under different ARDS conditions are built up in comparison with the 2.5D ones, and EIT-derived numeric indices are also employed for evaluation of the lung ventilation. The purpose of this paper is to study different effects of different thorax models with either conductivity or complex conductivity on the reconstructed images and ventilation indices.

Indoor air quality in an automotive assembly plant in Selangor, Malaysia.

PubMed

Edimansyah, B A; Rusli, B N; Naing, L; Azwan, B A; Aziah, B D

2009-01-01

The purpose of this study was to determine the indoor air quality (IAQ) status of an automotive assembly plant in Rawang, Selangor, Malaysia using selected IAQ parameters, such as carbon dioxide (CO2), carbon monoxide (CO), temperature, relative humidity (RH) and respirable particulate matter (PM10). A cross-sectional study was conducted in the paint shop and body shop sections of the plant in March 2005. The Q-TRAK Plus IAQ Monitor was used to record the patterns of CO, CO2, RH and temperature; whilst PM10 was measured using DUSTTRAK Aerosol Monitor over an 8-hour time weight average (8-TWA). It was found that the average temperatures, RH and PM10 in the paint shop section and body shop sections exceeded the Department of Safety and Health (DOSH) standards. The average concentrations of RH and CO were slightly higher in the body shop section than in the paint shop section, while the average concentrations of temperature and CO2 were slightly higher in the paint shop section than in the body shop section. There was no difference in the average concentrations of PM10 between the two sections.

Computer program for thin-wire structures in a homogeneous conducting medium

NASA Technical Reports Server (NTRS)

Richmond, J. H.

1974-01-01

A computer program is presented for thin-wire antennas and scatters in a homogeneous conducting medium. The anaylsis is performed in the real or complex frequency domain. The program handles insulated and bare wires with finite conductivity and lumped loads. The output data includes the current distribution, impedance, radiation efficiency, gain, absorption cross section, scattering cross section, echo area and the polarization scattering matrix. The program uses sinusoidal bases and Galerkin's method.

Paternal ADHD symptoms and child conduct problems: is father involvement always beneficial?

PubMed

Romirowsky, A M; Chronis-Tuscano, A

2014-09-01

Maternal psychopathology robustly predicts poor developmental and treatment outcomes for children with attention-deficit/hyperactivity disorder (ADHD). Despite the high heritability of ADHD, few studies have examined associations between paternal ADHD symptoms and child adjustment, and none have also considered degree of paternal involvement in childrearing. Identification of modifiable risk factors for child conduct problems is particularly important in this population given the serious adverse outcomes resulting from this comorbidity. This cross-sectional study examined the extent to which paternal involvement in childrearing moderated the association between paternal ADHD symptoms and child conduct problems among 37 children with ADHD and their biological fathers. Neither paternal ADHD symptoms nor involvement was independently associated with child conduct problems. However, the interaction between paternal ADHD symptoms and involvement was significant, such that paternal ADHD symptoms were positively associated with child conduct problems only when fathers were highly involved in childrearing. The presence of adult ADHD symptoms may determine whether father involvement in childrearing has a positive or detrimental influence on comorbid child conduct problems.

Achievement Goals, Motivational Climate and Sportspersonship: A Study of Young Handball Players

ERIC Educational Resources Information Center

Stornes, Tor; Ommundsen, Yngvar

2004-01-01

The aim of this study was to investigate the relationships between achievement goals, perceptions of motivational climate and sportspersonship in a sample of young male Norwegian handball players. A cross-sectional study of 440 male handball players aged from 14 to 16 was conducted, in which the players responded to a questionnaire measuring…

40 CFR Appendix D to Part 136 - Precision and Recovery Statements for Methods for Measuring Metals

Code of Federal Regulations, 2011 CFR

2011-07-01

... Accuracy Section with the following: Precision and Accuracy An interlaboratory study on metal analyses by... details are found in “USEPA Method Study 7, Analyses for Trace Methods in water by Atomic Absorption... study on metal analyses by this method was conducted by the Quality Assurance Branch (QAB) of the...

The Study of Body Image, Self-Esteem and Sexual Satisfaction of College Students in Southern Taiwan

ERIC Educational Resources Information Center

Lin, Hsiu-Chou; Lin, Yen-Chin

2018-01-01

The purpose of the study is to assess the relationship between sexual satisfaction and gender, perception of body image, and level of self-esteem in college students in southern Taiwan. This study conducted questionnaires completed by 637 college students in southern Taiwan. The questionnaire consisted of four sections: the Personal Background…

Computer-based learning in neuroanatomy: A longitudinal study of learning, transfer, and retention

NASA Astrophysics Data System (ADS)

Chariker, Julia H.

A longitudinal experiment was conducted to explore computer-based learning of neuroanatomy. Using a realistic 3D graphical model of neuroanatomy, and sections derived from the model, exploratory graphical tools were integrated into interactive computer programs so as to allow adaptive exploration. 72 participants learned either sectional anatomy alone or learned whole anatomy followed by sectional anatomy. Sectional anatomy was explored either in perceptually continuous animation or discretely, as in the use of an anatomical atlas. Learning was measured longitudinally to a high performance criterion. After learning, transfer to biomedical images and long-term retention was tested. Learning whole anatomy prior to learning sectional anatomy led to a more efficient learning experience. Learners demonstrated high levels of transfer from whole anatomy to sectional anatomy and from sectional anatomy to complex biomedical images. All learning groups demonstrated high levels of retention at 2--3 weeks.

50 CFR 228.16 - Conduct of the hearing.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 50 Wildlife and Fisheries 9 2011-10-01 2011-10-01 false Conduct of the hearing. 228.16 Section 228.16 Wildlife and Fisheries NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS NOTICE AND HEARING ON SECTION 103(d) REGULATIONS § 228.16...

Exploring the clinical utility of the DSM-5 conduct disorder specifier of 'with limited prosocial emotions' in an adolescent inpatient sample.

PubMed

Vanwoerden, Salome; Reuter, Tyson; Sharp, Carla

2016-08-01

With the recent addition of a callous-unemotional (CU) specifier to the diagnosis of conduct disorder (CD) in the DSM-5, studies are needed to evaluate the clinical utility of this specifier and the best ways to identify youth meeting criteria for this specifier in clinical samples. To this end, the current study examined cross-sectional correlates and treatment response across four groups of inpatient adolescents (N=382, ages 12-17): those with CD without the specifier, with CD and the CU specifier, CU alone, and a group of psychiatric controls. We used two different measures to identify adolescents with high levels of CU traits: the Antisocial Process Screening Device (APSD) [1] and the Inventory of Callous-Unemotional Traits (ICU) [2]. Questionnaires and structured interviews were used to evaluate a range of outcomes including presence of baseline levels and treatment outcomes of both externalizing and internalizing problems. Results indicated that the ICU, but not the APSD differentiated between conduct disordered youth with and without the specifier on externalizing behaviors in both cross-sectional relations and treatment response. The results of the current study caution the use of the most frequently used measure to identify the CU specifier, and make suggestions about alternatives. Copyright © 2016 Elsevier Inc. All rights reserved.

The Association between Parent-Child Conflict and Adolescent Conduct Problems over Time: Results from a Longitudinal Adoption Study

PubMed Central

Klahr, Ashlea M.; McGue, Matt; Iacono, William G.; Burt, S. Alexandra

2010-01-01

A handful of prior adoption studies have confirmed that the cross-sectional relationship between child conduct problems and parent/child conflict is at least partially shared environmental in origin. However, as the direction of causation between parenting and delinquency remains unclear, this relationship could be better explained by the adolescent's propensity to elicit conflictive parenting, a phenomenon referred to as an evocative gene-environment correlation. The current study thus examined the prospective relationship between conduct problems and parent-child conflict in a sample of adoptive families. Participants included 672 adolescents in 405 adoptive families assessed at two time points roughly 4 years apart. Results indicated that parent-child conflict predicts the development of conduct problems, whereas conduct problems do not predict increases in parent-child conflict. Such findings suggest that evocative gene-environment correlations are highly unlikely as an explanation of prior shared environmental effects during adolescence. Moreover, because the adolescents in this study do not share genes with their adoptive parents, the association between conduct problems and parent-child conflict is indicative of shared environmental mediation in particular. Implications of our findings are discussed. PMID:21038930

Cross-cultural validation of instruments measuring health beliefs about colorectal cancer screening among Korean Americans.

PubMed

Lee, Shin-Young; Lee, Eunice E

2015-02-01

The purpose of this study was to report the instrument modification and validation processes to make existing health belief model scales culturally appropriate for Korean Americans (KAs) regarding colorectal cancer (CRC) screening utilization. Instrument translation, individual interviews using cognitive interviewing, and expert reviews were conducted during the instrument modification phase, and a pilot test and a cross-sectional survey were conducted during the instrument validation phase. Data analyses of the cross-sectional survey included internal consistency and construct validity using exploratory and confirmatory factor analysis. The main issues identified during the instrument modification phase were (a) cultural and linguistic translation issues and (b) newly developed items reflecting Korean cultural barriers. Cross-sectional survey analyses during the instrument validation phase revealed that all scales demonstrate good internal consistency reliability (Cronbach's alpha=.72~.88). Exploratory factor analysis showed that susceptibility and severity loaded on the same factor, which may indicate a threat variable. Items with low factor loadings in the confirmatory factor analysis may relate to (a) lack of knowledge about fecal occult blood testing and (b) multiple dimensions of the subscales. Methodological, sequential processes of instrument modification and validation, including translation, individual interviews, expert reviews, pilot testing and a cross-sectional survey, were provided in this study. The findings indicate that existing instruments need to be examined for CRC screening research involving KAs.

User Guide for HUFPrint, A Tabulation and Visualization Utility for the Hydrogeologic-Unit Flow (HUF) Package of MODFLOW

USGS Publications Warehouse

Banta, Edward R.; Provost, Alden M.

2008-01-01

This report documents HUFPrint, a computer program that extracts and displays information about model structure and hydraulic properties from the input data for a model built using the Hydrogeologic-Unit Flow (HUF) Package of the U.S. Geological Survey's MODFLOW program for modeling ground-water flow. HUFPrint reads the HUF Package and other MODFLOW input files, processes the data by hydrogeologic unit and by model layer, and generates text and graphics files useful for visualizing the data or for further processing. For hydrogeologic units, HUFPrint outputs such hydraulic properties as horizontal hydraulic conductivity along rows, horizontal hydraulic conductivity along columns, horizontal anisotropy, vertical hydraulic conductivity or anisotropy, specific storage, specific yield, and hydraulic-conductivity depth-dependence coefficient. For model layers, HUFPrint outputs such effective hydraulic properties as horizontal hydraulic conductivity along rows, horizontal hydraulic conductivity along columns, horizontal anisotropy, specific storage, primary direction of anisotropy, and vertical conductance. Text files tabulating hydraulic properties by hydrogeologic unit, by model layer, or in a specified vertical section may be generated. Graphics showing two-dimensional cross sections and one-dimensional vertical sections at specified locations also may be generated. HUFPrint reads input files designed for MODFLOW-2000 or MODFLOW-2005.

The Influence of Racial Microaggressions and Social Rank on Risk for Depression among Minority Graduate and Professional Students

ERIC Educational Resources Information Center

Lilly, Flavius R. W.; Owens, Jenny; Bailey, TaShara C.; Ramirez, Amy; Brown, Whitney; Clawson, Clancy

2018-01-01

Objective: This study examined the association between positive screening for depression, current exposure to microaggressions, distress evoked by microaggressions, and subjective social status among high-achieving minorities. Methods: An observational cross-sectional study was conducted using the Racial Microaggressions Scale, MacArthur Scale of…

Associations of Truancy, Perceived School Performance, and Mental Health with Alcohol Consumption among Adolescents

ERIC Educational Resources Information Center

Holtes, Muriel; Bannink, Rienke; Joosten-van Zwanenburg, Evelien; van As, Els; Raat, Hein; Broeren, Suzanne

2015-01-01

Background: This study examined associations of truancy, perceived school performance, and mental health with adolescents' week, weekend, and binge drinking. Methods: A cross-sectional study was conducted among 1167 secondary school students of Dutch ethnicity (mean age, 15.9 years, SD?=?0.69). Alcohol consumption, truancy, perceived school…

Evaluation of the Willingness for Cadaveric Donation in Greece: A Population-Based Study

ERIC Educational Resources Information Center

Halou, Heidi; Chalkias, Athanasios; Mystrioti, Dimitra; Iacovidou, Nicoletta; Vasileiou, Panagiotis V.S.; Xanthos, Theodoros

2013-01-01

Despite the importance of body donation for medical education and the advancement of medical science, cadaveric donation remains suboptimal worldwide. The purpose of this study was to evaluate the willingness of body donation in Greece and determine the characteristics of donors. This cross-sectional questionnaire survey was conducted from January…

Current Backpack Weight Status for Primary Schoolchildren in Colima, Mexico

ERIC Educational Resources Information Center

Olmedo-Buenrostro, Bertha Alicia; Delgado-Enciso, Iván; Sánchez-Ramírez, Carmen Alicia; Cruz, Sergio Adrián Montero; Vásquez, Clemente; Mora-Brambila, Ana Bertha; Rodríguez-Sánchez, Iram P.; Martínez-Fierro, Margarita L.

2016-01-01

The purpose of the study was to identify the current status of backpack weight in primary schoolchildren in Colima, Mexico, in relation to gender, school grade level, and body mass index. A cross-sectional study was conducted on 240 randomly selected children from 20 primary schools. The participating children's parents signed statements of…

Rogue Community College Financial Aid/Veteran's Department Unit Self Study.

ERIC Educational Resources Information Center

Rogue Community Coll., Grants Pass, OR.

This document is a self-study report conducted by the Financial Aid/Veteran's Department of the Student Services Division of Rogue Community College (RCC) (Oregon). It is divided into five sections: unit description, mission and goals, analysis and appraisal, recommendations and actions taken, and contacts. Highlights include: (1) RCC has…

Subdimensions of Adolescent Belonging in High School

ERIC Educational Resources Information Center

Wallace, Tanner LeBaron; Ye, Feifei; Chhuon, Vichet

2012-01-01

Adolescents' sense of belonging in high school may serve a protective function, linking school-based relationships to positive youth outcomes. To advance the study of sense of belonging, we conducted a mixed method, factor analytic study (Phase 1 focus groups, N = 72; Phase 2 cross-sectional survey, N = 890) to explore the multidimensionality of…

Burnout: Coping with Predictable Professional Life Crises.

ERIC Educational Resources Information Center

Schnacke, Stephen B.; And Others

The first section of this paper presents a review of recent studies on teacher burnout. Although a number of specific stressors have been explored, those which appear most consistently in studies on the subject are in the general categories of conduct and discipline of pupils, misbehavior and poor student attitudes, personal teaching competence,…

Risk Factors Associated with Obesity in Children of Different Racial Backgrounds

ERIC Educational Resources Information Center

Urrutia-Rojas, Ximena; Ahmad, Naveed; Bayona, Manuel; Bae, Sejong; Rivers, Patrick A; Singh, Karan P

2008-01-01

Objective: The purpose of this study is to determine specific risk factors associated with obesity among African American, Hispanic and Caucasian children. Design: This is a cross-sectional study conducted on 1076 fifth grade children from 17 elementary schools at Fort Worth, Texas. Data were collected through questionnaires and physical…

What Do Education Students Think about Their Ability to Write Essays?

ERIC Educational Resources Information Center

Quintero, Gisela Consolación

2018-01-01

The present study reflects the results obtained from a diagnosis carried out with Education students concerning the writing of academic essays. The objective was to identify the perceptions that Comprehensive Education students have about their ability to write academic essays. A descriptive cross-sectional research study was conducted at a single…

Plagiarism under a Magnifying-Glass

ERIC Educational Resources Information Center

Starovoytova, Diana

2017-01-01

This paper embodies the findings from a small part, of a larger study on plagiarism, at the School of Engineering (SOE). The study is a cross-sectional survey, conducted in an institutional setting. 15 senior academic members of staff (N = 15), from SOE were invited to complete a questionnaire. The questioner was pre-tested, to ensure its validity…

Some Cognitive Developmental Characteristics of Social Diversity Education.

ERIC Educational Resources Information Center

Adams, Maurianne; Zhou, Yu-hui A.

This paper, on a 1988-89 study of 219 undergraduates, addresses issues of cognitive development, learning style, and attitudes toward social diversity and social justice. A parallel study was conducted in spring/fall 1989 with subsequent changes noted. The table of contents presents the following sections: (1) "Background and Educational Context";…

Factors that Predict How Women Label Their Own Childhood Sexual Abuse

ERIC Educational Resources Information Center

Katerndahl, David; Burge, Sandra; Kellogg, Nancy

2006-01-01

Despite the psychological impact of child sexual abuse, many victims do not acknowledge that their experiences were "abuse." This study sought to identify factors that predict how women label their own experiences of childhood sexual abuse. This cross-sectional study was conducted in a family medicine clinic with adult female patients. Subjects…

The Landscape of Noncredit Workforce Education: State Polices and Community College Practices

ERIC Educational Resources Information Center

Van Noy, Michelle; Jacobs, James; Korey, Suzanne; Bailey, Thomas; Hughes, Katherine L.

2008-01-01

This report describes a study conducted by the Community College Research Center (CC RC) that explores the overarching issues affecting community college noncredit workforce education. Following an introduction, the next section explains the methodology of the study, presenting the research questions, the data collection methods, and the analytic…

Study of School District Administration and Staffing.

ERIC Educational Resources Information Center

Colorado State Dept. of Education, Denver.

School district administration and staffing patterns are examined in this report prepared in response to CRS 22-2-118, which requires the Colorado Department of Education to conduct a study to determine where savings of state and local funds may be realized. Section 1 offers an analysis of district staffing patterns from existing data. The second…

Technology Rich Biology Labs: Effects of Misconceptions.

ERIC Educational Resources Information Center

Kuech, Robert; Zogg, Gregory; Zeeman, Stephan; Johnson, Mark

This paper describes a study conducted on the lab sections of the general biology course for non-science majors at the University of New England, and reports findings of student misconceptions about photosynthesis and the mass/carbon uptake during plant growth. The current study placed high technology analytic tools in the hands of introductory…

Missouri Annual Blind/Visually Impaired Literacy Study, December 2012

ERIC Educational Resources Information Center

Missouri Department of Elementary and Secondary Education, 2012

2012-01-01

The Missouri Department of Elementary and Secondary Education, per Section 162.1136 RSMo, conducts an annual study of the educational status of eligible blind/visually impaired students and reports the findings to the Missouri Legislature on December 1st each year. The information contained in this report pertains to the twelve data elements…

Missouri Annual Blind/Visually Impaired Literacy Study, December 2010

ERIC Educational Resources Information Center

Missouri Department of Elementary and Secondary Education, 2010

2010-01-01

The Missouri Department of Elementary and Secondary Education, per Section 162.1136 RSMo, conducts an annual study of the educational status of eligible blind/visually impaired students and reports the findings to the Missouri Legislature on December 1st each year. The information contained in this report pertains to the twelve data elements…

Missouri Annual Blind/Visually Impaired Literacy Study, December 2011

ERIC Educational Resources Information Center

Missouri Department of Elementary and Secondary Education, 2011

2011-01-01

The Missouri Department of Elementary and Secondary Education, per Section 162.1136 RSMo, conducts an annual study of the educational status of eligible blind/visually impaired students and reports the findings to the Missouri Legislature on December 1st each year. The information contained in this report pertains to the twelve data elements…

Academic Oral Presentation Self-Efficacy: A Cross-Sectional Interdisciplinary Comparative Study

ERIC Educational Resources Information Center

Amirian, Seyed Mohammad Reza; Tavakoli, Elaheh

2016-01-01

Despite the significant role of oral presentation in the academic context, many university students evade opportunities for participation due to low self-efficacy. The present study has been conducted to compare oral presentation self-efficacy of English as a Foreign Language (EFL) learners with undergraduates and postgraduates of Non-EFL majors,…

Factors Associated with Job Content Plateauing among Older Workers

ERIC Educational Resources Information Center

Armstrong-Stassen, Marjorie

2008-01-01

Purpose: The purpose of this paper is to identify personal and work environment factors associated with the experience of job content plateauing among older workers. Design/methodology/approach: Two cross-sectional studies, each including two samples, were conducted. In each study, one sample consisted of a diverse group of older workers and the…

Foundational Competencies for Enhancing Work Engagement in SMEs Malaysia

ERIC Educational Resources Information Center

Haruna, Aliyu Yelwa; Marthandan, Govindan

2017-01-01

Purpose: This study aims to examine the impact of foundational competencies on work engagement in the context of the Malaysian small and medium enterprises (SMEs) service sector. Design/Methodology/Approach: This is a cross-sectional study conducted in Malaysia, and data were gathered via a survey on 312 employees representing SMEs service…

Outdoor Recreation: Participation, Characteristics of Users, Distances Traveled, and Expenditures.

ERIC Educational Resources Information Center

Owens, Gerald P.

Participation in outdoor recreation was the focus of this 1963 study involving 776 families representing a cross section of the urban and rural population of southern Ohio and nearby areas of West Virginia and Kentucky. The study was conducted to determine relationships between participation and characteristics in order to advise private…

Dyslipidemia and Auditory Function

PubMed Central

Evans, M. Bradley; Tonini, Ross; Shope, Cynthia Do; Oghalai, John S.; Jerger, James F.; Insull, William; Brownell, William E.

2013-01-01

The relationship between dyslipidemia and hearing is unclear. This study was conducted to investigate whether elevated serum lipid levels impact auditory function in humans and in guinea pigs. In the human study, a cross-sectional study of 40 volunteers with dyslipidemia was conducted. Pure tone thresholds, distortion product otoacoustic emissions, and lipid profiles were analyzed. When controlled for patient age and sex, we found that elevated triglycerides were associated with reduced hearing. In the guinea pig study, a prospective study of animals fed a high-fat diet for 14 weeks was conducted. Although the high-fat diet led to a dramatic elevation in the average weight and total cholesterol in all animals (from 61 to 589 mg/dl), there were no meaningful changes in distortion product otoacoustic emission magnitudes. These results suggest that whereas chronic dyslipidemia associated with elevated triglycerides may reduce auditory function, short-term dietary changes may not. PMID:16868509

[Are mental disorders increasing? Update of a systematic review on repeated cross-sectional studies].

PubMed

Richter, Dirk; Berger, Klaus

2013-05-01

Throughout the western world, an increasing demand for psychiatric services is reported. However, a systematic review published in 2008 came to the conclusion that there is no sufficient evidence for increasing mental disorders in the recent decades. A systematic review on studies with repeating cross-sectional surveys in the general population, published since 2008, was conducted. 33 study results were included into the review. The majority of publications did not report increasing mental health problems in the general population. The increasing demand for psychiatric services is not associated with increasing mental disorders in the general population. © Georg Thieme Verlag KG Stuttgart · New York.

Extra Sinus Pathologies on the Routine CT Sinus Study: What the Radiologist Cannot Afford to Miss

DTIC Science & Technology

2017-04-30

assistance. 8. The 59 CRD/Publications and Presentations Section will route the request form to clinical investigations. 502 ISG/JAC ( Ethics Review) and...additional information. 11 . The Joint Ethics Regulation (JER) DoO 5500.07 -R. Standards of Conduct, provides standards of ethical conduct for all DoD...includes a legal ethics review to address any potential conmcts related to DoD personnel participating in non-OoD sponsored conferences

Associations between children's social functioning and physical activity participation are not mediated by social acceptance: a cross-sectional study.

PubMed

Sebire, Simon J; Jago, Russell; Fox, Kenneth R; Page, Angie S; Brockman, Rowan; Thompson, Janice L

2011-09-30

Physical activity (PA) during childhood often occurs in social contexts. As such, children's ability to develop and maintain friendship groups may be important in understanding their PA. This paper investigates the associations among children's social functioning, and physical activity and whether perceptions of social acceptance mediate any social functioning-PA association. A cross sectional survey in which 652 10-11 year olds self-reported their peer (e.g. difficulties with friends) and conduct (e.g. anger/aggression) problems, prosocial behaviours (e.g. being kind to others) and perceptions of social acceptance. Physical activity was objectively assessed by Actigraph GT1M accelerometers to estimate counts per minute, (CPM) and minutes of moderate-to-vigorous physical activity (MVPA). Linear regression analyses were conducted to investigate associations between social functioning and PA. Indirect effects were analysed to explore mediation by social acceptance. Among boys, peer problems were negatively associated with CPM and MVPA and conduct problems were positively associated with CPM and MVPA. Prosocial behaviour was unrelated to PA in boys. Social functioning was not associated with PA among girls. Social acceptance did not mediate the social functioning-PA relationship. Boys' conduct and peer problems were associated positively and negatively respectively with their PA but this relationship was not mediated by perceptions of social acceptance. Future research should study alternative mediators to understand the processes underpinning this relationship.

Primary health care research in Saudi Arabia: A quantitative analysis.

PubMed

Jahan, Saulat; Al-Saigul, Abdullah Mohammed

2017-01-01

The objective of this study was to analyze the published primary health care (PHC) research conducted in Saudi Arabia quantitatively and to determine the distribution of these research publications according to the topic, time, geographical location, and institution. In this descriptive study, we conducted literature search in PubMed and Google Scholar. The Medical Subject Headings terms: "Primary Health" AND "Saudi" and "Primary Care" AND "Saudi" were used for searching relevant journal articles. Relevant information about the journal articles, published till December 2011, was recorded on a coding instrument. From 1983 to 2011, a total of 655 PHC research articles were found. The publication output showed an increase with time. Original research articles (85.6%) were the main type of publications, and the most common study design was cross-sectional (93.4%). "Chronic diseases" and "health services research" were the main topics addressed. Riyadh province had the highest proportion (46.3%) of publications, and the universities (56.2%), followed by the Saudi Ministry of Health (24.9%), were the main institutions publishing the research. Despite a well-established PHC setup in Saudi Arabia, the research outputs are low. Most of the published articles are cross-sectional studies and are conducted by the universities. Enhancing the PHC research by creating a supportive environment will lead to an increased evidence base for PHC and its effective translation into service delivery.

21 CFR 312.87 - Active monitoring of conduct and evaluation of clinical trials.

Code of Federal Regulations, 2010 CFR

2010-04-01

... clinical trials. 312.87 Section 312.87 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH... and evaluation of clinical trials. For drugs covered under this section, the Commissioner and other agency officials will monitor the progress of the conduct and evaluation of clinical trials and be...

Reducing Thermal Conduction In Acoustic Levitators

NASA Technical Reports Server (NTRS)

Lierke, Ernst G.; Leung, Emily W.; Bhat, Balakrishna T.

1991-01-01

Acoustic transducers containing piezoelectric driving elements made more resistant to heat by reduction of effective thermal-conductance cross sections of metal vibration-transmitting rods in them, according to proposal. Used to levitate small objects acoustically for noncontact processing in furnaces. Reductions in cross sections increase amplitudes of transmitted vibrations and reduce loss of heat from furnaces.

21 CFR 7.87 - Records related to opportunities for presentation of views conducted before report of criminal...

Code of Federal Regulations, 2010 CFR

2010-04-01

... of views conducted before report of criminal violation. 7.87 Section 7.87 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ENFORCEMENT POLICY Criminal... criminal violation. (a) Records related to a section 305 opportunity for presentation of views constitute...

Antibiotic prescribing in women during and after delivery in a non-teaching, tertiary care hospital in Ujjain, India: a prospective cross-sectional study.

PubMed

Sharma, Megha; Sanneving, Linda; Mahadik, Kalpana; Santacatterina, Michele; Dhaneria, Suryaprakash; Stålsby Lundborg, Cecilia

2013-01-01

Antibacterial drugs (hereafter referred to as antibiotics) are crucial to treat infections during delivery and postpartum period to reduce maternal mortality. Institutional deliveries have the potential to save lives of many women but extensive use of antibiotics, add to the development and spread of antibiotic resistance. The aim of this study was to present antibiotic prescribing among inpatients during and after delivery in a non-teaching, tertiary care hospital in the city of Ujjain, Madhya Pradesh, India. A prospective cross-sectional study was conducted including women having had either a vaginal delivery or a cesarean section in the hospital. Trained nursing staff collected the data on daily bases, using a specific form attached to each patient file. Statistical analysis, including bivariate and multivariable logistic regression was conducted. Of the total 1077 women, 566 (53%) had a vaginal delivery and 511 (47%) had a cesarean section. Eighty-seven percent of the women that had a vaginal delivery and 98% of the women having a cesarean section were prescribed antibiotics. The mean number of days on antibiotics in hospital for the women with a vaginal delivery was 3.1 (±1.7) and for the women with cesarean section was 6.0 (±2.5). Twenty-eight percent of both the women with vaginal deliveries and the women with cesarean sections were prescribed antibiotics at discharge. The most commonly prescribed antibiotic group in the hospital for both the women that had a vaginal delivery and the women that had a cesarean section were third-generation cephalosporins (J01DD). The total number of defined daily doses (DDD) per100 bed days for women that had a vaginal delivery was 101, and 127 for women that had a cesarean section. The high percentage of women having had a vaginal delivery that received antibiotics and the deviation from recommendation for cesarean section in the hospital is a cause of concern. Improved maternal health and rational use of antibiotics are intertwined. Specific policy and guidelines on how to prescribe antibiotics during delivery at health care facilities are needed. Additionally, monitoring system of antibiotic prescribing and resistance needs to be developed and implemented.

Computer-based learning: interleaving whole and sectional representation of neuroanatomy.

PubMed

Pani, John R; Chariker, Julia H; Naaz, Farah

2013-01-01

The large volume of material to be learned in biomedical disciplines requires optimizing the efficiency of instruction. In prior work with computer-based instruction of neuroanatomy, it was relatively efficient for learners to master whole anatomy and then transfer to learning sectional anatomy. It may, however, be more efficient to continuously integrate learning of whole and sectional anatomy. A study of computer-based learning of neuroanatomy was conducted to compare a basic transfer paradigm for learning whole and sectional neuroanatomy with a method in which the two forms of representation were interleaved (alternated). For all experimental groups, interactive computer programs supported an approach to instruction called adaptive exploration. Each learning trial consisted of time-limited exploration of neuroanatomy, self-timed testing, and graphical feedback. The primary result of this study was that interleaved learning of whole and sectional neuroanatomy was more efficient than the basic transfer method, without cost to long-term retention or generalization of knowledge to recognizing new images (Visible Human and MRI). Copyright © 2012 American Association of Anatomists.

MRI of articular cartilage at microscopic resolution

PubMed Central

Xia, Y.

2013-01-01

This review briefly summarises some of the definitive studies of articular cartilage by microscopic MRI (µMRI) that were conducted with the highest spatial resolutions. The article has four major sections. The first section introduces the cartilage tissue, MRI and µMRI, and the concept of image contrast in MRI. The second section describes the characteristic profiles of three relaxation times (T1, T2 and T1ρ) and self-diffusion in healthy articular cartilage. The third section discusses several factors that can influence the visualisation of articular cartilage and the detection of cartilage lesion by MRI and µMRI. These factors include image resolution, image analysis strategies, visualisation of the total tissue, topographical variations of the tissue properties, surface fibril ambiguity, deformation of the articular cartilage, and cartilage lesion. The final section justifies the values of multidisciplinary imaging that correlates MRI with other technical modalities, such as optical imaging. Rather than an exhaustive review to capture all activities in the literature, the studies cited in this review are merely illustrative. PMID:23610697

Computer-Based Learning: Interleaving Whole and Sectional Representation of Neuroanatomy

PubMed Central

Pani, John R.; Chariker, Julia H.; Naaz, Farah

2015-01-01

The large volume of material to be learned in biomedical disciplines requires optimizing the efficiency of instruction. In prior work with computer-based instruction of neuroanatomy, it was relatively efficient for learners to master whole anatomy and then transfer to learning sectional anatomy. It may, however, be more efficient to continuously integrate learning of whole and sectional anatomy. A study of computer-based learning of neuroanatomy was conducted to compare a basic transfer paradigm for learning whole and sectional neuroanatomy with a method in which the two forms of representation were interleaved (alternated). For all experimental groups, interactive computer programs supported an approach to instruction called adaptive exploration. Each learning trial consisted of time-limited exploration of neuroanatomy, self-timed testing, and graphical feedback. The primary result of this study was that interleaved learning of whole and sectional neuroanatomy was more efficient than the basic transfer method, without cost to long-term retention or generalization of knowledge to recognizing new images (Visible Human and MRI). PMID:22761001

Research notes : polymer modified emulsions for chip seals.

DOT National Transportation Integrated Search

1991-12-01

The Research Unit is conducting a study of chip seal emulsions using asphalts containing polymers on test sections that were built in 1987 on Oregon Route 22 near Stayton in Marion County. A commonly used emulsion in the 1987 OSHD Specifications for ...

Factors Influencing Operating Speeds and Safety on Rural and Suburban Roads

DOT National Transportation Integrated Search

2015-05-01

The objective of this project was to develop a technical report that describes treatments that result in driver self-selection of appropriate operational speeds on curve and tangent sections. The study was conducted in two phases. The first phase inc...

14 CFR 61.103 - Eligibility requirements: General.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Eligibility requirements: General. 61.103 Section 61.103 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... who: (1) Conducted the training or reviewed the person's home study on the aeronautical knowledge...

14 CFR 61.103 - Eligibility requirements: General.

Code of Federal Regulations, 2011 CFR

2011-01-01

... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Eligibility requirements: General. 61.103 Section 61.103 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... who: (1) Conducted the training or reviewed the person's home study on the aeronautical knowledge...

Technological Improvements to Automobile Fuel Consumption : Volume 2A. Sections 1 through 25

DOT National Transportation Integrated Search

1974-12-01

This report is a preliminary survey of the technological feasibility of reducing the fuel consumption of automobiles. The study uses as a reference information derived from literature, automobile industry contacts, and testing conducted as part of th...

An Evaluation of Crack, Seat and Overlay in California (Phase II)

DOT National Transportation Integrated Search

2011-01-18

During the past 20 years hundreds of highway miles in California have been rehabilitated employing CS&O technique with little performance data : available. This study was conducted to evaluate the performance of CS&O for sections built in different c...

An assessment of innovative financing options for the Airport Improvement Program

DOT National Transportation Integrated Search

1996-03-01

Section 520 of the Federal Aviation Administration (FAA) Authorization Act of 1994 (Public Law 103-305) directs the Secretary of Transportation to conduct a study of innovative approaches for using Federal funds to finance airport development as a me...

Knowledge, Attitude, and Practices regarding Whole Body Donation among Medical Professionals in a Hospital in India

ERIC Educational Resources Information Center

Ballala, Kirthinath; Shetty, Avinash; Malpe, Surekha Bhat

2011-01-01

Voluntary body donation has become an important source of cadavers for anatomical study and education. The objective of this study was to assess knowledge, attitude, and practice (KAP) regarding whole body donation among medical professionals in a medical institute in India. A cross sectional study was conducted at Kasturba Hospital, Manipal,…

Homophobia and the Transition to Adulthood: A Three Year Panel Study among Belgian Late Adolescents and Young Adults, 2008-2011

ERIC Educational Resources Information Center

Hooghe, Marc; Meeusen, Cecil

2012-01-01

Studies on homophobia among adolescents routinely depart from the assumption that this attitude will be continued into adulthood. However, little research has been conducted on how the transition toward adulthood actually affects homophobia. While earlier studies relied on cross-sectional observations, the present analysis makes use of the Belgian…

Diabetes Control among Vietnamese Patients in Ho Chi Minh City: An Observational Cross-Sectional Study

ERIC Educational Resources Information Center

Yokokawa, Hirohide; Khue, Nguyen Thy; Goto, Aya; Nam, Tran Quang; Trung, Tran The; Khoa, Vo Tuan; Ngoc, Nguyen Thi Boi; Minh, Pham Nghiem; Vinh, Nguyen Quang; Okayama, Akira; Yasumura, Seiji

2010-01-01

The objective of this study was to assess the extent of diabetic control and its associated factors among Vietnamese patients with diabetes mellitus (DM). The study was conducted among 652 outpatients who were recruited at a public general hospital (People Hospital 115) and a private clinic (Medic Center) in Ho Chi Minh City, Vietnam. Median age…

Study of Federal Funding Sources and Services for Adult Education. Final Report.

ERIC Educational Resources Information Center

Alamprese, Judith A.; Sivilli, June S.

This report from phase 1 of a two-phase study conducted during 1989-1991 reviews 85 programs in 12 federal agencies that authorize the expenditure of funds for adult education services. The impetus for this study was the requirement in Section 6214 of the Hawkins-Stafford Elementary and Secondary School Improvement Amendments of 1988. Data were…

43 CFR 404.44 - What criteria will Reclamation apply to determine whether it is appropriate to recommend that a...

Code of Federal Regulations, 2011 CFR

2011-10-01

... formulated and evaluated; (b) Whether the recommendation for further study of one or more alternatives is... determine whether it is appropriate to recommend that a feasibility study be conducted? 404.44 Section 404... will Reclamation apply to determine whether it is appropriate to recommend that a feasibility study be...

The Relationship between Smartphone Use and Academic Performance in a Sample of Tertiary Students in Singapore: A Cross-Sectional Study

ERIC Educational Resources Information Center

Zhao, Jingming; Yuping, Wei; Maideen, Ismail; Moe, Zan Khin; Nasirudeen, A. M. A.

2018-01-01

The use of smartphone for socialising and learning has become a norm among students in Singapore. Educational institutions are creating lessons and applications for use on mobile platforms. However, the effectiveness of smartphones for learning has not been well studied in Singapore. This study was conducted to understand the association between…

Using the Self-Directed Search in Research: Selecting a Representative Pool of Items to Measure Vocational Interests

ERIC Educational Resources Information Center

Poitras, Sarah-Caroline; Guay, Frederic; Ratelle, Catherine F.

2012-01-01

Using Item Response Theory (IRT) and Confirmatory Factor Analysis (CFA), the goal of this study was to select a reduced pool of items from the French Canadian version of the Self-Directed Search--Activities Section (Holland, Fritzsche, & Powell, 1994). Two studies were conducted. Results of Study 1, involving 727 French Canadian students,…

An Approach to Developing Language Awareness in the Irish Language Classroom: A Case Study

ERIC Educational Resources Information Center

O Laoire, Muiris

2007-01-01

This case study deals with language awareness (LA) oriented instruction in the Irish language classroom, based on qualitative-type research conducted in a class of 21 English-medium secondary students studying Irish as a subject. Having outlined the general background to the teaching of Irish in secondary schools, the first section of the paper…

Investigating and Comparing User Experiences of Course Management Systems: Blackboard vs. Moodle

ERIC Educational Resources Information Center

Unal, Zafer; Unal, Aslihan

2014-01-01

The goal of this study is to report the results of a comparative usability study conducted in 2008-2009 on two different course management systems (CMS), BlackBoard and Moodle. 135 students enrolled in the fall 2008 and spring 2009 section of Introduction to Educational Technology participated in the study (72 and 63 respectively). At the…

32 CFR 1903.14 - Disorderly conduct.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 32 National Defense 6 2012-07-01 2012-07-01 false Disorderly conduct. 1903.14 Section 1903.14 National Defense Other Regulations Relating to National Defense CENTRAL INTELLIGENCE AGENCY CONDUCT ON AGENCY INSTALLATIONS § 1903.14 Disorderly conduct. A person commits disorderly conduct when, with intent...

32 CFR 1903.14 - Disorderly conduct.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 6 2010-07-01 2010-07-01 false Disorderly conduct. 1903.14 Section 1903.14 National Defense Other Regulations Relating to National Defense CENTRAL INTELLIGENCE AGENCY CONDUCT ON AGENCY INSTALLATIONS § 1903.14 Disorderly conduct. A person commits disorderly conduct when, with intent...

32 CFR 1903.14 - Disorderly conduct.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 32 National Defense 6 2013-07-01 2013-07-01 false Disorderly conduct. 1903.14 Section 1903.14 National Defense Other Regulations Relating to National Defense CENTRAL INTELLIGENCE AGENCY CONDUCT ON AGENCY INSTALLATIONS § 1903.14 Disorderly conduct. A person commits disorderly conduct when, with intent...

32 CFR 1903.14 - Disorderly conduct.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 32 National Defense 6 2014-07-01 2014-07-01 false Disorderly conduct. 1903.14 Section 1903.14 National Defense Other Regulations Relating to National Defense CENTRAL INTELLIGENCE AGENCY CONDUCT ON AGENCY INSTALLATIONS § 1903.14 Disorderly conduct. A person commits disorderly conduct when, with intent...

32 CFR 1903.14 - Disorderly conduct.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 32 National Defense 6 2011-07-01 2011-07-01 false Disorderly conduct. 1903.14 Section 1903.14 National Defense Other Regulations Relating to National Defense CENTRAL INTELLIGENCE AGENCY CONDUCT ON AGENCY INSTALLATIONS § 1903.14 Disorderly conduct. A person commits disorderly conduct when, with intent...

43 CFR 404.33 - How much Federal funding can Reclamation provide for the completion of a feasibility study?

Code of Federal Regulations, 2011 CFR

2011-10-01

... provide for the completion of a feasibility study? 404.33 Section 404.33 Public Lands: Interior... of a feasibility study? In general, Reclamation will be responsible for 50 percent of the cost of a feasibility study conducted under § 404.11(a) or (b). You will be responsible to pay for the remaining 50...

Elementary School Students' Mental Models about Formation of Seasons: A Cross Sectional Study

ERIC Educational Resources Information Center

Türk, Cumhur; Kalkan, Hüseyin; Kiroglu, Kasim; Ocak Iskeleli, Nazan

2016-01-01

The purpose of this study is to determine the mental models of elementary school students on seasons and to analyze how these models change in terms of grade levels. The study was conducted with 294 students (5th, 6th, 7th and 8th graders) studying in an elementary school of Turkey's Black Sea Region. Qualitative and quantitative data collection…

"Lazy men", time-use, and rural development in Zambia.

PubMed

Whitehead, A

1999-11-01

This paper examines how work and the labor in agriculture in rural sub-Saharan Africa is measured. Section 1 presents a historical example of colonial discourses of the "lazy" African (the Lamba in Zambia). Section 2 analyzes a study carried out in rural Zambia to illustrate the relationship between stereotypes held by many Europeans, particular aspects of the colonial project, and the social relations brought about by colonialism. Section 3 examines the ways in which present work and labor approaches in sub-Saharan Africa embody value judgements which leads to distorted documentation of the division of labor between opposite genders. Sections 4 through 7 look at a time-use study conducted in Zambia and argue that studies of such nature create value judgement on what comprises work, and about how researchers and planners classify this. Overall, this article has demonstrated that time-use surveys may provide inadequate understanding of women and men's work in the absence of an understanding of the local context in which the work is undertaken, and of labor markets.

A study of radar cross section measurement techniques

NASA Technical Reports Server (NTRS)

Mcdonald, Malcolm W.

1986-01-01

Past, present, and proposed future technologies for the measurement of radar cross section were studied. The purpose was to determine which method(s) could most advantageously be implemented in the large microwave anechoic chamber facility which is operated at the antenna test range site. The progression toward performing radar cross section measurements of space vehicles with which the Orbital Maneuvering Vehicle will be called upon to rendezvous and dock is a natural outgrowth of previous work conducted in recent years of developing a high accuracy range and velocity sensing radar system. The radar system was designed to support the rendezvous and docking of the Orbital Maneuvering Vehicle with various other space vehicles. The measurement of radar cross sections of space vehicles will be necessary in order to plan properly for Orbital Maneuvering Vehicle rendezvous and docking assignments. The methods which were studied include: standard far-field measurements; reflector-type compact range measurements; lens-type compact range measurement; near field/far field transformations; and computer predictive modeling. The feasibility of each approach is examined.

Micromechanics of Damage Accumulation in Micro- and Nano-Scale Laminates for Microelectromechanical Systems

DTIC Science & Technology

2009-04-06

samples to gauge their roughness. The study was conducted using a Dimension 3100 atomic force microscope produced by Veeco, and using tips produced...image of the sample, along with a close up of the gage section highlighting the notch. Gauge sections were 2 mm long, having 200, 160 and 100μm widths...and slots with semicircular ends which spanned 33% of the gauge widths and had a 3μm root radius. The thickness of the films was reported to be

Expansion tunnel performance with and without an electromagnetically opened tertiary diaphragm

NASA Technical Reports Server (NTRS)

Miller, C. G.

1977-01-01

A study was conducted to examine the effect of synchronization of an electromagnetically opened tertiary diaphragm with flow arrival at the diaphragm on the pitot pressure measured at the test section of an expansion tunnel. The effect of tertiary diaphragm pressure ratio (ratio of initial nozzle pressure to quiescent acceleration section pressure) on the pitot pressure time history is also determined. The inadequacy of a pressure transducer protection arrangement used in previous expansion tube and expansion tunnel tests was revealed.

Maternal mortality following caesarean sections.

PubMed

Sikdar, K; Kundu, S; Mandal, G S

1979-08-01

A study of 26 maternal deaths following 3647 caesarean sections was conducted in Eden Hospital from 1974-1977. During the time period there were 35,544 births and 308 total maternal deaths (8.74/1000). Indications for Caesarean sections included: 1) abnormal presentation; 2) cephalopelvic disproportion; 3) toxemia; 4) prolonged labor; 5) fetal distress; and 6) post-caesarean pregnancies. Highest mortality rates were among cephalopelvic disproportion, toxemia, and prolonged labor patients. 38.4% of the patients died due to septicaemia and peritonitis, but other deaths were due to preclampsia, shock, and hemorrhage. Proper antenatal care may have prevented anemia and preclampsia and treated other pre-existing or superimposed diseases.

36 CFR 400.1 - Cross-references to employees' ethical conduct standards, financial disclosure regulations and...

Code of Federal Regulations, 2011 CFR

2011-07-01

...' ethical conduct standards, financial disclosure regulations and other conduct rules. 400.1 Section 400.1... CONDUCT § 400.1 Cross-references to employees' ethical conduct standards, financial disclosure regulations... executive branch-wide standards of ethical conduct and financial disclosure regulations at 5 CFR parts 2634...

36 CFR 400.1 - Cross-references to employees' ethical conduct standards, financial disclosure regulations and...

Code of Federal Regulations, 2010 CFR

2010-07-01

...' ethical conduct standards, financial disclosure regulations and other conduct rules. 400.1 Section 400.1... CONDUCT § 400.1 Cross-references to employees' ethical conduct standards, financial disclosure regulations... executive branch-wide standards of ethical conduct and financial disclosure regulations at 5 CFR parts 2634...

36 CFR 400.1 - Cross-references to employees' ethical conduct standards, financial disclosure regulations and...

Code of Federal Regulations, 2014 CFR

2014-07-01

...' ethical conduct standards, financial disclosure regulations and other conduct rules. 400.1 Section 400.1... CONDUCT § 400.1 Cross-references to employees' ethical conduct standards, financial disclosure regulations... executive branch-wide standards of ethical conduct and financial disclosure regulations at 5 CFR parts 2634...

36 CFR 400.1 - Cross-references to employees' ethical conduct standards, financial disclosure regulations and...

Code of Federal Regulations, 2012 CFR

2012-07-01

...' ethical conduct standards, financial disclosure regulations and other conduct rules. 400.1 Section 400.1... CONDUCT § 400.1 Cross-references to employees' ethical conduct standards, financial disclosure regulations... executive branch-wide standards of ethical conduct and financial disclosure regulations at 5 CFR parts 2634...

Paternal Antisocial Behavior (But Not Paternal ADHD) Is Associated With Negative Parenting and Child Conduct Problems.

PubMed

LeMoine, Kaitlyn A; Romirowsky, Abigail M; Woods, Kelsey E; Chronis-Tuscano, Andrea

2015-09-23

Parental psychopathology and parenting quality robustly predict negative outcomes among children with ADHD. Little research has investigated associations between paternal ADHD symptoms and parenting, though there is clear evidence linking maternal ADHD symptoms with both suboptimal parenting and child conduct problems, and considerable research supporting fathers' significant contributions to their children's development. This cross-sectional study examined psychopathology and parenting in a sample of fathers (N = 102) and their 5- to 12-year-old children with previously diagnosed ADHD. Results suggested that paternal antisocial personality disorder (ASPD) symptoms (rather than ADHD symptoms) were robustly associated with child conduct problems, with an indirect effect through paternal negative parenting. This study suggests that negative parenting may be a potential mechanism by which paternal ASPD is associated with child conduct problems, and demonstrates the importance of considering co-occurring psychopathology in research examining adult ADHD, parenting, and child outcomes. © The Author(s) 2015.

Fruit and vegetable consumption and risk of depression: accumulative evidence from an updated systematic review and meta-analysis of epidemiological studies.

PubMed

Saghafian, Faezeh; Malmir, Hanieh; Saneei, Parvane; Milajerdi, Alireza; Larijani, Bagher; Esmaillzadeh, Ahmad

2018-05-01

Findings from observational studies investigating the association between fruit and vegetable consumption and risk of depression were inconsistent. We conducted a systematic review and meta-analysis to summarise available data on the association between fruit and vegetable intake and depression. A systematic literature search of relevant reports published in Medline/PubMed, ISI (Web of Science), SCOPUS and Google Scholar until Oct 2017 was conducted. Data from 27 publications (sixteen cross-sectional, nine cohort and two case-control studies) on fruit, vegetables and/or total fruit and vegetable consumption in relation to depression were included in the systematic review. A total of eighteen studies that reported relative risks (RR), hazard ratios or OR for the relationship were included in the meta-analysis. The pooled RR for depression in the highest v. the lowest category of fruit intake was 0·83 (95 % CI 0·71, 0·98) in cohort studies and 0·76 (95 % CI 0·63, 0·92) in cross-sectional studies. Consumption of vegetables was also associated with a 14 % lower risk of depression (overall RR=0·86; 95 % CI 0·75, 0·98) in cohort studies and a 25 % lower risk of depression (overall RR=0·75; 95 % CI 0·62, 0·91) in cross-sectional studies. Moreover, an inverse significant association was observed between intake of total fruit and vegetables and risk of depression (overall RR=0·80; 95 % CI 0·65, 0·98) in cross-sectional studies. In a non-linear dose-response association, we failed to find any significant association between fruit or vegetable intake and risk of depression (fruit (cross-sectional studies): P non-linearty=0·12; vegetables (cross-sectional studies): P non-linearty<0·001; (cohort studies) P non-linearty=0·97). Meta-regression of included observational studies revealed an inverse linear association between fruit or vegetable intake and risk of depression, such that every 100-g increased intake of fruit was associated with a 3 % reduced risk of depression in cohort studies (RR=0·97; 95 % CI 0·95, 0·99). With regard to vegetable consumption, every 100-g increase in intake was associated with a 3 % reduced risk of depression in cohort studies (RR=0·97; 95 % CI 0·95, 0·98) and 5 % reduced odds in cross-sectional studies (RR=0·95; 95 % CI 0·91, 0·98). This meta-analysis of observational studies provides further evidence that fruit and vegetable intake was protectively associated with depression. This finding supports the current recommendation of increasing fruit and vegetable intake to improve mental health.

Instructions to Prospective Authors by Indian Biomedical Journals: An Opportunity to Promote Responsible Conduct of Research.

PubMed

Bhat, Anup; Shah, Akash; Sherighar, Swathi G

2017-04-01

Journals provide instructions to prospective authors to facilitate the process of manuscript publication. The information provided under such instructions could be a potential opportunity to promote responsible conduct of research (RCR). We analyzed 74 Indian biomedical journals for the type of information provided in the "instructions to authors" section and adherence to the International Committee of Medical Journal Editors (ICMJE) recommendations. Among the 71 journals that had an "instructions to authors" section, 53 journals adhered to ICMJE recommendations. We discuss sections of the ICMJE recommendations detailed by Indian biomedical journals under the "instructions to authors" section and emphasize components that require greater exposure.

40 CFR 60.2922 - How do I conduct the initial and annual performance test?

Code of Federal Regulations, 2014 CFR

2014-07-01

... of this part must be used. (ii) The post-test moisture removal procedure described in section 8.1.6... performance test? 60.2922 Section 60.2922 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Testing § 60.2922 How do I conduct the initial and annual performance test? (a) All performance tests must...

40 CFR 60.2922 - How do I conduct the initial and annual performance test?

Code of Federal Regulations, 2013 CFR

2013-07-01

... of this part must be used. (ii) The post-test moisture removal procedure described in section 8.1.6... performance test? 60.2922 Section 60.2922 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED... Testing § 60.2922 How do I conduct the initial and annual performance test? (a) All performance tests must...

The Validation of a Software Evaluation Instrument.

ERIC Educational Resources Information Center

Schmitt, Dorren Rafael

This study, conducted at six southern universities, analyzed the validity and reliability of a researcher developed instrument designed to evaluate educational software in secondary mathematics. The instrument called the Instrument for Software Evaluation for Educators uses measurement scales, presents a summary section of the evaluation, and…

Community Gardening, Neighborhood Meetings, and Social Capital

ERIC Educational Resources Information Center

Alaimo, Katherine; Reischl, Thomas M.; Allen, Julie Ober

2010-01-01

This study examined associations between participation in community gardening/beautification projects and neighborhood meetings with perceptions of social capital at both the individual and neighborhood levels. Data were analyzed from a cross-sectional stratified random telephone survey conducted in Flint, Michigan (N=1916). Hierarchical linear…

28 CFR 90.65 - Evaluation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Evaluation. 90.65 Section 90.65 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) VIOLENCE AGAINST WOMEN Arrest Policies in Domestic Violence Cases § 90.65 Evaluation. (a) The National Institute of Justice will conduct evaluations and studies of...

28 CFR 90.65 - Evaluation.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Evaluation. 90.65 Section 90.65 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) VIOLENCE AGAINST WOMEN Arrest Policies in Domestic Violence Cases § 90.65 Evaluation. (a) The National Institute of Justice will conduct evaluations and studies of...

Teachers' Perceptions of Strategies and Skills Affecting Learning of Gifted 7th Graders in English Classes

ERIC Educational Resources Information Center

Noble, James Paul

2010-01-01

This study was conducted in 11 schools across 5 school districts and solicited responses from 20 teachers. This study found a relationship between instructional strategies appropriate for gifted students and teachers' perceptions of contributions the strategies made to learning. The literature review section examined the modern focus on gifted…

Factors Affecting Long-Term Abstinence from Substances Use

ERIC Educational Resources Information Center

Elsheikh, Salah Elgaily

2008-01-01

Objective: The purpose of this study is to explore the attitudes of abstainers from drug use that relate to the factors leading to long-term abstinence. Materials and Methods: Cross-sectional study was carried out in Al-Amal Hospital to examine, which attitudes of abstainers related to long-term abstinence. A random survey was conducted on 62…

A Psycholinguistic Description of the Development of Writing in Selected First Grade Students.

ERIC Educational Resources Information Center

Milz, Vera E.

A study was conducted to examine writing development in first grade children. The writings from an entire classroom were collected. From these, six children's writings were chosen for cross-sectional analysis. Two children from this group were then selected for further in-depth case studies. Interviews, parent surveys, and observations were used…

Eight Case Studies of Communication Patterns in a Black, Urban Slum.

ERIC Educational Resources Information Center

Ryan, Michael

The Kerner Commission was critical six years ago in its assessment of media coverage of black problems, and eight case studies conducted in Philadelphia indicate that news media may not yet be effectively meeting the needs of some blacks. In January 1974 interviews were held with eight residents in a section of north Philadelphia characterized in…

Management of Primary Dysmenorrhea by School Adolescents in ILE-IFE, Nigeria

ERIC Educational Resources Information Center

Ogunfowokan, Adesola A.; Babatunde, Oluwayemisi A.

2010-01-01

Dysmenorrhea is a problem that girls and women face and often manage themselves with or without support from health professionals. A cross-sectional, descriptive study was conducted among adolescents with dysmenorrhea (N = 150) in Ile-Ife, Nigeria. The aims of the study were to determine their knowledge of menstruation and primary dysmenorrhea,…

An Evaluation of the Right to Read Inexpensive Book Distribution Program. Executive Summary.

ERIC Educational Resources Information Center

General Research Corp., McLean, VA.

This document is an executive summary of a study examining the Inexpensive Book Distribution Program (IBDP), a federally funded and sponsored program operated by Reading is Fundamental (RIF). Sections of the report provide the following information: (1) methodology and procedures for conducting the study, (2) a brief description of RIF national…

76 FR 71625 - Position Limits for Futures and Swaps

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-18

.... In the 1920s and into the 1930s, a series of studies and reports found that large speculative... Dodd-Frank Act amended the CEA to direct the Commission to define the relevant factors to be considered... Section 719 of the Dodd-Frank Act specifically requires the Commission `to conduct a study of the effects...

Early Adolescents' and Their Parents' Mental Imagery in Relation to Perceived Reading Competence

ERIC Educational Resources Information Center

Mol, Suzanne E.; Jolles, Jelle; Van Batenburg-Eddes, Tamara; Bult, Maureen K.

2016-01-01

This cross-sectional survey study examined the relation between mental imagery (i.e., seeing images of a story "in the mind's eye") and perceived self-competence in reading. The study was conducted with a group of seventh-grade to ninth-grade students in the prevocational educational track of secondary schools in the Netherlands and…

Anti-Smoking Socialization Beliefs among Rural Native American and White Parents of Young Children

ERIC Educational Resources Information Center

Kegler, Michelle C.; Malcoe, Lorraine Halinka

2005-01-01

This study assesses similarities and differences in anti-smoking socialization beliefs of White and Native American parents in a low-income, rural population in northeastern Oklahoma. Data are from a population-based, cross-sectional children's environmental health study in which in-home interviews were conducted with 356 parents (56.2% White,…

Eliciting and Developing Teachers' Conceptions of Random Processes in a Probability and Statistics Course

ERIC Educational Resources Information Center

Smith, Toni M.; Hjalmarson, Margret A.

2013-01-01

The purpose of this study is to examine prospective mathematics specialists' engagement in an instructional sequence designed to elicit and develop their understandings of random processes. The study was conducted with two different sections of a probability and statistics course for K-8 teachers. Thirty-two teachers participated. Video analyses…

Folk Dress, Fiestas, and Festivals: How Is Mexico Portrayed in U.S. Primary Grade Social Studies Textbooks?

ERIC Educational Resources Information Center

Field, Sherry L.; Bauml, Michelle; Wilhelm, Ron W.; Jenkins, Joelle

2012-01-01

This qualitative content analysis was conducted to determine how Mexico and Mexican people are portrayed in contemporary U.S. elementary social studies textbooks. Three textbooks from each of three major publishers were analyzed. Findings are presented in five sections: images and photographs, holidays, Mexican people and heroes, contested…

A Transfer Subject: Tracing Boundary-Work and Micro-Transfer in First-Year Composition

ERIC Educational Resources Information Center

Medina, Dylan London

2017-01-01

This dissertation draws on data from a quarter-long case study implementing a number of social science and humanities research methods. This study was conducted at the University of Washington in two sections of First-Year Composition and investigates the boundary-marking interactions that occur in a writing class by tracing the experiences of…

Impact of Employee Benefits on Families with Children with Autism Spectrum Disorders

ERIC Educational Resources Information Center

Gnanasekaran, Sangeeth; Choueiri, Roula; Neumeyer, Ann; Ajari, Ogheneochuko; Shui, Amy; Kuhlthau, Karen

2016-01-01

The objectives of this study are to evaluate the employee benefits parents of children with autism spectrum disorders have, how benefits are used, work change, and job satisfaction. We conducted a cross-sectional mailed survey study of 435 families with children with autism spectrum disorders residing in the United States. We received 161 surveys…

Predictors of Funded Scholarly Activity at 4-Year, Non-Doctoral Colleges and Universities

ERIC Educational Resources Information Center

Edwards, Maria Montoro

2010-01-01

This study seeks to develop a model of institutional supports necessary for faculty to succeed as funded scholars at 4-year non-doctoral colleges and universities. Research was conducted using secondary data analysis on a pre-existing, cross-sectional database from the 2004 National Study of Postsecondary Faculty. Expectancy theory was used as the…

The Impact of Service-Learning on Moral Development and Self-Esteem of Community College Ethics Students.

ERIC Educational Resources Information Center

Cram, Stanley Bruce

This study investigates the extent to which service-learning fosters moral development and increased self-esteem. Conducted at a large Midwestern community college, the study followed students enrolled in three sections of an Introduction to Ethics course, only two of which included a service-learning component. Student outcomes from the three…

Alcohol-Related Injuries among Eastern Croatian University Students

ERIC Educational Resources Information Center

Miskulin, Ivan; Peek-Asa, Corinne; Miskulin, Maja

2018-01-01

The aim of this study was to describe the alcohol consumption patterns and to identify the association of injury with excess drinking among Croatian students. This cross-sectional study was conducted among 845 university students by the use of the WHO AUDIT questionnaire. A total of 39.9% of the university students reported some level of excess…

Parental and Adolescent Perceptions of Neighborhood Safety Related to Adolescents' Physical Activity in Their Neighborhood

ERIC Educational Resources Information Center

Esteban-Cornejo, Irene; Carlson, Jordan A.; Conway, Terry L.; Cain, Kelli L.; Saelens, Brian E.; Frank, Lawrence D.; Glanz, Karen; Roman, Caterina G.; Sallis, James F.

2016-01-01

Purpose: The purpose of this study was to examine the association between adolescent and parental perceptions of neighborhood safety and adolescents' physical activity in multiple locations and to investigate the moderating effect of sex within this association. Method: This cross-sectional study was conducted with 928 adolescents aged 12 to 16…

The Association between Changes in Health Status and Nursing Home Resident Quality of Life

ERIC Educational Resources Information Center

Degenholtz, Howard B.; Rosen, Jules; Castle, Nicholas; Mittal, Vikas; Liu, Darren

2008-01-01

Purpose: Previous research on nursing home resident quality of life (QOL) has mainly been cross-sectional. This study examined the association between changes in QOL and changes in resident clinical factors. Design and Methods: A longitudinal study of resident QOL was conducted in two nursing homes. Self-report interviews using a multidimensional…

The Aspect Hypothesis Revisited: A Cross-Sectional Study of Tense and Aspect Marking in Interlanguage.

ERIC Educational Resources Information Center

Robison, Richard E.

1995-01-01

This article examined the aspect hypothesis, which asserts that verb inflections in early interlanguage systems function primarily as markers of lexical aspect independent of the target language. A study of interviews conducted with 26 Puerto Rican college students grouped into 4 proficiency levels found that the association of inflections with…

Changes in Awareness of Cancer Risk Factors among Adult New Zealanders (CAANZ): 2001 to 2015

ERIC Educational Resources Information Center

Richards, R.; McNoe, B.; Iosua, E.; Reeder, A. I.; Egan, R.; Marsh, L.; Robertson, L.; Maclennan, B.; Dawson, A.; Quigg, R.; Petersen, A.-C.

2017-01-01

Behaviour change, specifically that which decreases cancer risk, is an essential element of cancer control. Little information is available about how awareness of risk factors may be changing over time. This study describes the awareness of cancer risk behaviours among adult New Zealanders in two cross-sectional studies conducted in 2001 and…

Characterization of indoor home vacuum dust allergens and serum based allergen specific IgE levels in asthmatic and non-asthmatic children

EPA Science Inventory

The Mechanistic Indicators of Childhood Asthma (MICA) study was conducted in the Detroit, Michigan area during fall to early winter 2006-2007. Children from 9-13 years of age were recruited into a cross-sectional study to examine biological markers of exposure, effects, and susce...

Condom Discomfort and Associated Problems with Their Use among University Students

ERIC Educational Resources Information Center

Grosby, Richard; Yarber, William L.; Sanders, Stephanie A.; Graham, Cynthia A.

2005-01-01

In addition to consistent use, condoms must be used correctly. The purpose of this study was to identify prevalence and types of condom-associated discomfort among university students, the outcomes of this discomfort, and the role of discomfort in condom breakage. We conducted a cross-sectional study of 206 students attending a private university…

Characteristics of Viable and Sustainable Workers for the Year 2015.

ERIC Educational Resources Information Center

Dean, Brenda Pennington; West, Russell

A two-round Delphi study was conducted to identify the characteristics of viable and sustainable employees in northeastern Tennessee in 2015. The Delphi panel selected for the study consisted of 25 experts who represented a cross-section of the businesses and communities in the 10-county area of northeastern Tennessee served by Walters State…

Secondhand Smoke Exposure in a Rural High School

ERIC Educational Resources Information Center

Lee, Kiyoung; Hahn, Ellen J.; Riker, Carol A.; Hoehne, Amber; White, Ashleigh; Greenwell, Devin; Thompson, Dyshel

2007-01-01

Although federal law requires all public schools to be smoke free, lack of compliance with the smoke-free policy is commonly reported. The aims of this study were to describe the indoor fine-particle (PM[subscript 2.5]) air pollution in a rural high school and surrounding public venues. This cross-sectional, nonexperimental study was conducted in…

Internet Use, Risks and Online Behaviour: The View of Internet Users with Intellectual Disabilities and Their Caregivers

ERIC Educational Resources Information Center

Chiner, Esther; Gómez-Puerta, Marcos; Cardona-Moltó, María Cristina

2017-01-01

Background: Internet offers opportunities to people with intellectual disabilities, but it also involves some risks. The aim of this study was to explore these issues considering caregivers and people with intellectual disabilities' perspectives. Materials and Methods: A descriptive, cross-sectional study was conducted. The sample consisted of 77…

Prevalence of and factors associated with obesity among Pakistani schoolchildren: a school-based, cross-sectional study.

PubMed

Ahmed, J; Laghari, A; Naseer, M; Mehraj, V

2013-03-01

Childhood obesity is nowadays a concern in the developing world. This cros-sectional study was conducted on 501 randomly selected students from 10 high schools in an urban setting in Hyderabad, Pakistan. Children who were underweight were excluded. Interviews were conducted to determine demographic data, dietary intake, physical activity and other variables that may be associated with obesity. Overall 58 students (12%) had body mass index (BMI)>or=95th percentile, 40 (8%) BMI>or=85th percentile and 403 (80%) had BMI<85th percentile (WHO age- and sex-specific cut-offs). The prevalence of obesity was higher in boys than girls (15% than 8% respectively). In multivariate regression analysis significant risk factors for obesity/overweight were male sex, middle socioeconomic status, poor self-rated athletic ability, trying to lose weight and eating fruit<4 times per week. Childhood obesity is determined by factors in the home, school and society and a multidisciplinary approach is needed to prevention.

Ion Conduction in Perfectly Aligned Block Copolymer-Ionic Liquid Mixtures

NASA Astrophysics Data System (ADS)

Choi, Jae-Hong; Elabd, Yossef A.; Winey, Karen I.

2011-03-01

Our earlier work to correlate the transport measurements in diblock copolymer-ionic liquid mixtures was limited by our bulk samples that have only partial alignment. Here, thin films with perfect alignment of lamellar microdomains from mixtures of a poly(methyl methacrylate- b -styrene) diblock copolymer and an ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, have been studied. The morphologies will be characterized by cross-sectional transmission electron microscopy. Ion conduction will be presented within and through the thin film.

Space shuttle orbit maneuvering engine reusable thrust chamber: Adverse operating conditions test report

NASA Technical Reports Server (NTRS)

Tobin, R. D.

1974-01-01

Test hardware, facilities, and procedures are described along with results of electrically heated tube and channel tests conducted to determine adverse operating condition limits for convectively cooled chambers typical of Space Shuttle Orbit Manuevering Engine designs. Hot-start tests were conducted with corrosion resistant steel and nickel tubes with both monomethylhydrazine and 50-50 coolants. Helium ingestion, in both bubble and froth form, was studied in tubular test sections. Helium bubble ingestion and burn-out limits in rectangular channels were also investigated.

Impact evaluation of composite floor sections

NASA Technical Reports Server (NTRS)

Boitnott, Richard L.; Fasanella, Edwin L.

1989-01-01

Graphite-epoxy floor sections representative of aircraft fuselage construction were statically and dynamically tested to evaluate their response to crash loadings. These floor sections were fabricated using a frame-stringer design typical of present aluminum aircraft without features to enhance crashworthiness. The floor sections were tested as part of a systematic research program developed to study the impact response of composite components of increasing complexity. The ultimate goal of the research program is to develop crashworthy design features for future composite aircraft. Initially, individual frames of six-foot diameter were tested both statically and dynamically. The frames were then used to construct built-up floor sections for dynamic tests at impact velocities of approximately 20 feet/sec to simulate survivable crash velocities. In addition, static tests were conducted to gain a better understanding of the failure mechanisms seen in the dynamic tests.

Transformation of MT Resistivity Sections into Geologically Meaningful Images

NASA Astrophysics Data System (ADS)

Park, S. K.

2004-05-01

Earthscope offers an unprecedented opportunity for interdisciplinary studies of North America. In addition to a continent-wide seismic study, it includes the acquisition of magnetotelluric (MT) data at many of the Bigfoot array sites. Earthscope will thus provide a uniform 3-D MT survey over regional scales when completed. MT interpreters will be able to include 3-D regional effects in their models for the first time whether they are interpreting local studies. However, the full value of the interdisciplinary nature of Earthscope will be realized only if MT sections and maps are useful to other earth scientists. The standard final product from any 2-D or 3-D MT interpretation is a spatial distribution of electrical resistivity. Inference of the physicochemical state from bulk resistivity is complicated because a variety of factors influence the property including temperature, intrinsic conduction of silicates, and small amounts of interconnected conducting materials (e.g., graphite, metallic minerals, partial melt, fluid). Here, I use petrophysical measurements and a petrological model to transform a resistivity section into cross sections of temperature and partial melt fraction in the mantle beneath the Sierra Nevada. In this manner, I am able to separate the contributions of increasing temperature and melt fraction to the bulk resistivity. Predicted melt fractions match observations from xenoliths relatively well but temperatures are systematically 200C higher than those observed. A small amount of dissolved hydrogen (~70 ppm H/Si) lowers the predicted temperatures to match those from the xenoliths, however. I conclude that while this transformation is a simple first step based on many assumptions, initial results are promising.

Survey of on-road image projection with pixel light systems

NASA Astrophysics Data System (ADS)

Rizvi, Sadiq; Knöchelmann, Marvin; Ley, Peer-Phillip; Lachmayer, Roland

2017-12-01

HID, LED and laser-based high resolution automotive headlamps, as of late known as `pixel light systems', are at the forefront of the developing technologies paving the way for autonomous driving. In addition to light distribution capabilities that outperform Adaptive Front Lighting and Matrix Beam systems, pixel light systems provide the possibility of image projection directly onto the street. The underlying objective is to improve the driving experience, in any given scenario, in terms of safety, comfort and interaction for all road users. The focus of this work is to conduct a short survey on this state-of-the-art image projection functionality. A holistic research regarding the image projection functionality can be divided into three major categories: scenario selection, technological development and evaluation design. Consequently, the work presented in this paper is divided into three short studies. Section 1 provides a brief introduction to pixel light systems and a justification for the approach adopted for this study. Section 2 deals with the selection of scenarios (and driving maneuvers) where image projection can play a critical role. Section 3 discusses high power LED and LED array based prototypes that are currently under development. Section 4 demonstrates results from an experiment conducted to evaluate the illuminance of an image space projected using a pixel light system prototype developed at the Institute of Product Development (IPeG). Findings from this work can help to identify and advance future research work relating to: further development of pixel light systems, scenario planning, examination of optimal light sources, behavioral response studies etc.

Undergraduate medical students' attitudes towards psychiatry: an international cross-sectional survey between India and Japan.

PubMed

Kato, Takahiro A; Balhara, Yatan Pal Singh; Chawla, Jatinder Mohan; Tateno, Masaru; Kanba, Shigenobu

2013-08-01

Undergraduate psychiatric education has an important role in developing psychiatric knowledge, decreasing stigma towards mental illness, and promoting psychiatry as a career choice. The attitudes and beliefs of medical students towards psychiatry have not been well understood, especially in non-western countries. To clarify this aspect, we have conducted a cross-sectional study between India and Japan. This study, conducted at two centres, one each in India and Japan, used a semi-structured questionnaire to evaluate the attitudes and beliefs of third-year medical students towards mental illness and psychiatry; such as emotions experienced dealing with psychiatric patients, aetiology and treatment of psychiatric disorders, and psychiatry as a career choice. A total of 79 medical students from India and 77 from Japan participated in the present study. Significant differences were observed in the emotions experienced by the medical students while dealing with psychiatric patients. Most medical students (> 90%) from both study sites favoured psychiatrists for treatment of psychiatric illness. Psychiatry as a carrier choice was significantly related to the nationality of the medical students. The findings of the current study provide insight in to the attitudes of third-year medical students from India and Japan towards psychiatric patients.

36 CFR 702.2 - Conduct on Library premises.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Conduct on Library premises. 702.2 Section 702.2 Parks, Forests, and Public Property LIBRARY OF CONGRESS CONDUCT ON LIBRARY PREMISES § 702.2 Conduct on Library premises. (a) All persons using the premises shall conduct themselves...

21 CFR 868.5140 - Anesthesia conduction kit.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Anesthesia conduction kit. 868.5140 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5140 Anesthesia conduction kit. (a) Identification. An anesthesia conduction kit is a device used to administer to a patient conduction, regional, or...

21 CFR 868.5140 - Anesthesia conduction kit.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Anesthesia conduction kit. 868.5140 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5140 Anesthesia conduction kit. (a) Identification. An anesthesia conduction kit is a device used to administer to a patient conduction, regional, or...

36 CFR 702.2 - Conduct on Library premises.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false Conduct on Library premises. 702.2 Section 702.2 Parks, Forests, and Public Property LIBRARY OF CONGRESS CONDUCT ON LIBRARY PREMISES § 702.2 Conduct on Library premises. (a) All persons using the premises shall conduct themselves...

36 CFR 702.2 - Conduct on Library premises.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Conduct on Library premises. 702.2 Section 702.2 Parks, Forests, and Public Property LIBRARY OF CONGRESS CONDUCT ON LIBRARY PREMISES § 702.2 Conduct on Library premises. (a) All persons using the premises shall conduct themselves...

21 CFR 868.5140 - Anesthesia conduction kit.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Anesthesia conduction kit. 868.5140 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5140 Anesthesia conduction kit. (a) Identification. An anesthesia conduction kit is a device used to administer to a patient conduction, regional, or...

Nutritional status and physical abuse among the children involved in domestic labour in Karachi Pakistan: a cross-sectional survey.

PubMed

Zainab, Saima; Kadir, Masood

2016-10-01

To determine the prevalence of physical abuse among domestic child labours and to assess the nutritional status by calculating the Body Mass Index of children involved in domestic labour in Karachi. A cross sectional study was conducted in the squatter settlements of Karachi. Questionnaire based interviews were conducted to capture physical abuse with 385 children who worked as domestic labour in the household of their employer. The ages of the children were between 10 to 14 years belonging to both genders. The children were enrolled in study by snow-ball sampling technique. The overall prevalence of physical abuse among domestic child labour in Karachi was found to be 8.3 %. Over 9 % had low weight and about 90% were stunted. This study also highlighted that 95% of the children involved in domestic labour perform overtime work in their employer's home, more than once per week. There is high burden of physical abuse among the domestic child labour and these children are malnourished. There is a need to recognize and regulate this form of labour in Pakistan.

Cross-sectional scanning thermal microscopy of ErAs/GaAs superlattices grown by molecular beam epitaxy

NASA Astrophysics Data System (ADS)

Park, K. W.; Krivoy, E. M.; Nair, H. P.; Bank, S. R.; Yu, E. T.

2015-07-01

Scanning thermal microscopy has been implemented in a cross-sectional geometry, and its application for quantitative, nanoscale analysis of thermal conductivity is demonstrated in studies of an ErAs/GaAs nanocomposite superlattice. Spurious measurement effects, attributable to local thermal transport through air, were observed near large step edges, but could be eliminated by thermocompression bonding to an additional structure. Using this approach, bonding of an ErAs/GaAs superlattice grown on GaAs to a silicon-on-insulator wafer enabled thermal signals to be obtained simultaneously from Si, SiO2, GaAs, and ErAs/GaAs superlattice. When combined with numerical modeling, the thermal conductivity of the ErAs/GaAs superlattice measured using this approach was 11 ± 4 W m-1 K-1.

Cross-sectional scanning thermal microscopy of ErAs/GaAs superlattices grown by molecular beam epitaxy.

PubMed

Park, K W; Krivoy, E M; Nair, H P; Bank, S R; Yu, E T

2015-07-03

Scanning thermal microscopy has been implemented in a cross-sectional geometry, and its application for quantitative, nanoscale analysis of thermal conductivity is demonstrated in studies of an ErAs/GaAs nanocomposite superlattice. Spurious measurement effects, attributable to local thermal transport through air, were observed near large step edges, but could be eliminated by thermocompression bonding to an additional structure. Using this approach, bonding of an ErAs/GaAs superlattice grown on GaAs to a silicon-on-insulator wafer enabled thermal signals to be obtained simultaneously from Si, SiO2, GaAs, and ErAs/GaAs superlattice. When combined with numerical modeling, the thermal conductivity of the ErAs/GaAs superlattice measured using this approach was 11 ± 4 W m(-1) K(-1).

The Impact of Active and Context-Based Learning in Introductory Chemistry Courses: An Early Evaluation of the Modular Approach

NASA Astrophysics Data System (ADS)

Gutwill-Wise, Joshua P.

2001-05-01

This study evaluates new materials, "modules", for teaching introductory chemistry courses. The modules, under development by faculty from two NSF-funded consortia, employ real-world contexts and an interactive class format to foster conceptual understanding, scientific thinking, and improved attitudes toward science. The evaluation studies were conducted at two institutions, a small college and a large university. The experimental design at each school compared students in a course section taught with modules to those in a section that used a textbook and lecture format. At both schools, students in the modular section outperformed the control group on conceptual problems in chemistry and on scientific thinking problems. Modular section students at the large university also outperformed their peers on the first midterm exam in the subsequent organic chemistry course. Regarding attitudes, the modular section students were more positive about chemistry and the course than their peers in the control section at the small college. However, at the large school, the opposite attitudinal pattern was found. An analysis of informal focus group data provides insight into the negative attitudes in the modular section of the large course. Possible remedies for the issues raised are discussed.

76 FR 12390 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Notice of Filing of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-07

... By-Laws, Article VIII, Section 8.1 (Establishment of Districts) and Section 8.2 (Composition of..., Article VIII, Section 2(c) (District Committees and District Business Conduct Committees), amended...\\ See FINRA Regulation By-Laws, Article VIII, Section 8.1 (Establishment of Districts) and Section 8.2...

Paternal ADHD Symptoms and Child Conduct Problems: Is Father Involvement Always Beneficial?

PubMed Central

Romirowsky, Abigail Mintz; Chronis-Tuscano, Andrea

2013-01-01

Background Maternal psychopathology robustly predicts poor developmental and treatment outcomes for children with attention-deficit/hyperactivity disorder (ADHD). Despite the high heritability of ADHD, few studies have examined associations between paternal ADHD symptoms and child adjustment, and none have also considered degree of paternal involvement in childrearing. Identification of modifiable risk factors for child conduct problems is particularly important in this population given the serious adverse outcomes resulting from this comorbidity. Methods This cross-sectional study examined the extent to which paternal involvement in childrearing moderated the association between paternal ADHD symptoms and child conduct problems among 37 children with ADHD and their biological fathers. Results Neither paternal ADHD symptoms nor involvement was independently associated with child conduct problems. However, the interaction between paternal ADHD symptoms and involvement was significant, such that paternal ADHD symptoms were positively associated with child conduct problems only when fathers were highly involved in childrearing. Conclusions The presence of adult ADHD symptoms may determine whether father involvement in childrearing has a positive or detrimental influence on comorbid child conduct problems. PMID:25250402

Absence of nonresponse bias in a study of sport-caught Great Lakes fish consumption and conception failure

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

Stein, A.D.; Tay, E.; Courval, J.M.

1999-04-01

The authors have reported that men`s lifetime sport-caught Great Lakes fish consumption was associated with lifetime prevalence of conception delay or failure. Those cross-sectional data were based on responses to a postal questionnaire. The present study was conducted to evaluate whether nonresponse bias could explain the cross-sectional findings. The authors conducted telephone interviews with 230 men and 38 women who did not respond to the original responders with respect to key demographic, behavioral, and reproductive characteristics. Nonresponders were approximately 1.5 years older at interview, were more likely to be Caucasian, and reported higher incomes than responders. Among men, nonresponders hadmore » fished fewer days in the past year. Almost one half of nonresponders reported no fish consumption in the past year, compared to one quarter of responders. Nonresponders were more likely than responders to have ever conceived a live-born child, had more children, and were less likely to intend to have additional children in the next 5 years. Among both responders and nonresponders there was an increased prevalence of a period of conception failure among men who reported consuming greater quantities of sport-caught Great Lakes fish. The study provides support for the cross-sectional analyses presented previously, insofar as nonresponse bias is unlikely to have a major role in the observed association.« less

Amphetamine-type stimulants and HIV infection among men who have sex with men: implications on HIV research and prevention from a systematic review and meta-analysis

PubMed Central

Thu Vu, Nga Thi; Maher, Lisa; Zablotska, Iryna

2015-01-01

Introduction HIV infections and the use of amphetamine-type stimulants (ATS) among men who have sex with men (MSM) have been increasing internationally, but the role of ATS use as a co-factor for HIV infection remains unclear. We aimed to summarize the association between ATS use and HIV infection among MSM. Methods We conducted a systematic search of MEDLINE, EMBASE, GLOBAL HEALTH and PsycINFO for relevant English, peer-reviewed articles of quantitative studies published between 1980 and 25 April 2013. Pooled estimates of the association – prevalence rate ratios (PRR, cross-sectional studies), odds ratio (OR, case-control studies) and hazard ratio (HR, longitudinal studies), with 95% Confidence Intervals (CI) – were calculated using random-effects models stratified by study design and ATS group (meth/amphetamines vs. ecstasy). We assessed the existence of publication bias in funnel plots and checked for sources of heterogeneity using meta-regression and subgroup analysis. Results We identified 6710 article titles, screened 1716 abstracts and reviewed 267 full text articles. A total of 35 publications were eligible for data abstraction and meta-analysis, resulting in 56 records of ATS use. Most studies (31/35) were conducted in high-income countries. Published studies used different research designs, samples and measures of ATS use. The pooled association between meth/amphetamine use and HIV infection was statistically significant in all three designs (PRR=1.86; 95% CI: 1.57–2.17; OR=2.73; 95% CI: 2.16–3.46 and HR=3.43; 95% CI: 2.98–3.95, respectively, for cross-sectional, case-control and longitudinal studies). Ecstasy use was not associated with HIV infection in cross-sectional studies (PRR=1.15; 95% CI: 0.88–1.49; OR=3.04; 95% CI: 1.29–7.18 and HR=2.48; 95% CI: 1.42–4.35, respectively, for cross-sectional, case-control and longitudinal studies). Results in cross-sectional studies were highly heterogeneous due to issues with ATS measurement and different sampling frames. Conclusions While meth/amphetamine use was significantly associated with HIV infection among MSM in high-income countries in all study designs, evidence of the role of ecstasy in HIV infection was lacking in cross-sectional studies. Cross-sectional study design, measurement approaches and source populations may also be important modifiers of the strength and the direction of associations. Event-specific measure of individual drug is required to establish temporal relationship between ATS use and HIV infection. HIV prevention programmes targeting MSM should consider including interventions designed to address meth/amphetamine use. PMID:25609214

Social Capital and Health: A Review of Prospective Multilevel Studies

PubMed Central

Murayama, Hiroshi; Fujiwara, Yoshinori; Kawachi, Ichiro

2012-01-01

Background This article presents an overview of the concept of social capital, reviews prospective multilevel analytic studies of the association between social capital and health, and discusses intervention strategies that enhance social capital. Methods We conducted a systematic search of published peer-reviewed literature on the PubMed database and categorized studies according to health outcome. Results We identified 13 articles that satisfied the inclusion criteria for the review. In general, both individual social capital and area/workplace social capital had positive effects on health outcomes, regardless of study design, setting, follow-up period, or type of health outcome. Prospective studies that used a multilevel approach were mainly conducted in Western countries. Although we identified some cross-sectional multilevel studies that were conducted in Asian countries, including Japan, no prospective studies have been conducted in Asia. Conclusions Prospective evidence from multilevel analytic studies of the effect of social capital on health is very limited at present. If epidemiologic findings on the association between social capital and health are to be put to practical use, we must gather additional evidence and explore the feasibility of interventions that build social capital as a means of promoting health. PMID:22447212

Social capital and health: a review of prospective multilevel studies.

PubMed

Murayama, Hiroshi; Fujiwara, Yoshinori; Kawachi, Ichiro

2012-01-01

This article presents an overview of the concept of social capital, reviews prospective multilevel analytic studies of the association between social capital and health, and discusses intervention strategies that enhance social capital. We conducted a systematic search of published peer-reviewed literature on the PubMed database and categorized studies according to health outcome. We identified 13 articles that satisfied the inclusion criteria for the review. In general, both individual social capital and area/workplace social capital had positive effects on health outcomes, regardless of study design, setting, follow-up period, or type of health outcome. Prospective studies that used a multilevel approach were mainly conducted in Western countries. Although we identified some cross-sectional multilevel studies that were conducted in Asian countries, including Japan, no prospective studies have been conducted in Asia. Prospective evidence from multilevel analytic studies of the effect of social capital on health is very limited at present. If epidemiologic findings on the association between social capital and health are to be put to practical use, we must gather additional evidence and explore the feasibility of interventions that build social capital as a means of promoting health.

How are Closeness and Conflict in Student-Teacher Relationships Associated with Demographic Factors, School Functioning and Mental Health in Norwegian Schoolchildren Aged 6-13?

ERIC Educational Resources Information Center

Drugli, May Britt

2013-01-01

This study explored the association between teacher-reported student-teacher relationship quality (closeness and conflict) and demographic factors, school functioning and child mental health in a cross-sectional study. The study was conducted among a national sample of Norwegian school children (N?=?825) in grades 1 to 7. Bivariate analyses and…

The Effect of Psychological State and Social Support on Nail-Biting in Adolescents: An Exploratory Study

ERIC Educational Resources Information Center

Sisman, Fatma Nevin; Tok, Ozlem; Ergun, Ayse

2017-01-01

Nail-biting is one of the most common behavioral problems in children. This study aimed to examine factors affecting nail-biting among adolescents and the effects of psychological state and social support on nail-biting. This cross-sectional study was conducted between January and May of 2014 in seven schools in Istanbul (N = 724). Data were…

A Study of Legislative Measures Designed To Facilitate Access to Education and of the Role of the Village School in the Development of Rural Areas.

ERIC Educational Resources Information Center

Gagni, A. O.; Bartels, Francis L.

This report addresses the United Nations Educational Scientific Cultural Organization's (UNESCO) goals for activities related to the development of education in rural areas. Studies were conducted in China, the Philippines, Tanzania, Yugoslavia, Botswana, and Sierra Leone. The first section deals with the analytical study of information on…

36 CFR § 400.1 - Cross-references to employees' ethical conduct standards, financial disclosure regulations and...

Code of Federal Regulations, 2013 CFR

2013-07-01

...' ethical conduct standards, financial disclosure regulations and other conduct rules. § 400.1 Section Â... RESPONSIBILITIES AND CONDUCT § 400.1 Cross-references to employees' ethical conduct standards, financial disclosure... executive branch-wide standards of ethical conduct and financial disclosure regulations at 5 CFR parts 2634...

Partial restoration of the microbiota of cesarean-born infants via vaginal microbial transfer.

PubMed

Dominguez-Bello, Maria G; De Jesus-Laboy, Kassandra M; Shen, Nan; Cox, Laura M; Amir, Amnon; Gonzalez, Antonio; Bokulich, Nicholas A; Song, Se Jin; Hoashi, Marina; Rivera-Vinas, Juana I; Mendez, Keimari; Knight, Rob; Clemente, Jose C

2016-03-01

Exposure of newborns to the maternal vaginal microbiota is interrupted with cesarean birthing. Babies delivered by cesarean section (C-section) acquire a microbiota that differs from that of vaginally delivered infants, and C-section delivery has been associated with increased risk for immune and metabolic disorders. Here we conducted a pilot study in which infants delivered by C-section were exposed to maternal vaginal fluids at birth. Similarly to vaginally delivered babies, the gut, oral and skin bacterial communities of these newborns during the first 30 d of life was enriched in vaginal bacteria--which were underrepresented in unexposed C-section-delivered infants--and the microbiome similarity to those of vaginally delivered infants was greater in oral and skin samples than in anal samples. Although the long-term health consequences of restoring the microbiota of C-section-delivered infants remain unclear, our results demonstrate that vaginal microbes can be partially restored at birth in C-section-delivered babies.

Psychosocial profile of institutionalised street children in Alexandria, Egypt: a comparative study with school children.

PubMed

Attia, Medhat S; Tayel, Kholoud Y; Shata, Zeinab N; Othman, Sally S

2017-09-01

The phenomenon of street children in Egypt constitutes a public health concern. This study aimed to investigate the characteristics of institutionalised street children in Alexandria, to compare the prevalence of substance abuse and conduct disorder between street children and school children, and to identify predictors of these mental health outcomes among street children. Institutionalised street children (n = 102) participated in a cross-sectional comparative study with a matched group of school children (n = 156). An interviewing questionnaire was used to assess demographic characteristics and substance use. Conduct disorder was measured using the Revised Ontario Child Health study scale. Poverty, family breakdown, and domestic violence were the main reasons for street children having left home. Street children recorded significantly higher rates of substance use (9.8%) and conduct disorder (35.3%) compared to school children. In street children, smoking was a significant predictor of substance use and conduct disorder. Other predictors of conduct disorder included physical illness and having 5 to 7 siblings. Substance abuse and conduct disorder were present among institutionalised street children at higher rates than school children. Absence of basic life needs and disrupted families constituted the main reasons for leaving home. Interventions at the governmental and non-governmental levels are needed.

40 CFR 792.120 - Protocol.

Code of Federal Regulations, 2010 CFR

2010-07-01

... the test system. (8) A description of the experimental design, including methods for the control of... 40 Protection of Environment 31 2010-07-01 2010-07-01 true Protocol. 792.120 Section 792.120... at which the study is being conducted. (4) The proposed experimental start and termination dates. (5...

Technological Improvements to Automobile Fuel Consumption : Volume 2B. Sections 24 and 25, and Appendixes A through 1

DOT National Transportation Integrated Search

1974-12-01

This report is a preliminary survey of the technological feasibility of reducing the fuel consumption of automobiles. The study uses as a reference information derived from literature, automobile industry contacts, and testing conducted as part of th...

Predicting use of ineffective vegetable parenting practices with the Model of Goal Directed Behavior

USDA-ARS?s Scientific Manuscript database

Increasing a parent's ability to influence a child's vegetable intake may require reducing the parent's use of ineffective vegetable parenting practices. This study assessed the psychosocial influences on ineffective vegetable parenting practices. A cross-sectional web-based survey was conducted to ...

Medications Do Not Necessarily Normalize Cognition in ADHD Patients

ERIC Educational Resources Information Center

Gualtieri, C. Thomas; Johnson, Lynda G.

2008-01-01

Objective: Although ADHD medications are effective for the behavioral components of the disorder, little information exists concerning their effects on cognition, especially in community samples. Method: A cross-sectional study of ADHD patients treated with three different ADHD drugs was conducted. Patients' performance on a computerized…

DRINKING WATER ARSENIC EXPOSURE AND BLOOD PRESSURE IN HEALTHY WOMEN OF REPRODUCTIVE AGE IN INNER MONGOLIA, CHINA

EPA Science Inventory

The extremely high exposure levels evaluated in prior investigations relating elevated levels of drinking water arsenic and hypertension prevalence make extrapolation to potential vascular effects at lower exposure levels very difficult. A cross-sectional study was conducted on ...

Association between Markers of Classroom Environmental Conditions and Teachers' Respiratory Health

ERIC Educational Resources Information Center

Claudio, Luz; Rivera, Glory A.; Ramirez, Olivia F.

2016-01-01

Background: Studies have assessed health in schoolchildren. Less is known about the environmental and occupational health of teachers. Methods: A cross-sectional survey of teachers was conducted in 24 randomly selected public elementary schools. Questionnaire included sociodemographic information, healthcare, school conditions, and health…

Mindfulness and satisfaction in physical activity: A cross-sectional study in the Dutch population.

PubMed

Tsafou, Kalliopi-Eleni; De Ridder, Denise Td; van Ee, Raymond; Lacroix, Joyca Pw

2016-09-01

Both satisfaction and mindfulness relate to sustained physical activity. This study explored their relationship. We conducted a cross-sectional study with 398 Dutch participants who completed measures on trait mindfulness, mindfulness and satisfaction with physical activity, physical activity habits, and physical activity. We performed mediation and moderated mediation. Satisfaction mediated the effect of mindfulness on physical activity. Mindfulness was related to physical activity only when one's habit was weak. The relation of mindfulness with satisfaction was stronger for weak compared to strong habit. Understanding the relationship between mindfulness and satisfaction can contribute to the development of interventions to sustain physical activity. © The Author(s) 2015.

Caesarean birth rates in public and privately funded hospitals: a cross-sectional study.

PubMed

Alonso, Bruna Dias; Silva, Flora Maria Barbosa da; Latorre, Maria do Rosário Dias de Oliveira; Diniz, Carmen Simone Grilo; Bick, Debra

2017-01-01

To examine maternal and obstetric factors influencing births by cesarean section according to health care funding. A cross-sectional study with data from Southeastern Brazil. Caesarean section births from February 2011 to July 2012 were included. Data were obtained from interviews with women whose care was publicly or privately funded, and from their obstetric and neonatal records. Univariate and multivariate analyses were conducted to generate crude and adjusted odds ratios (OR) with 95% confidence intervals (95%CI) for caesarean section births. The overall caesarean section rate was 53% among 9,828 women for whom data were available, with the highest rates among women whose maternity care was privately funded. Reasons for performing a c-section were infrequently documented in women's maternity records. The variables that increased the likelihood of c-section regardless of health care funding were the following: paid employment, previous c-section, primiparity, antenatal and labor complications. Older maternal age, university education, and higher socioeconomic status were only associated with c-section in the public system. Higher maternal socioeconomic status was associated with greater likelihood of a caesarean section birth in publicly funded settings, but not in the private sector, where funding source alone determined the mode of birth rather than maternal or obstetric characteristics. Maternal socioeconomic status and private healthcare funding continue to drive high rates of caesarean section births in Brazil, with women who have a higher socioeconomic status more likely to have a caesarean section birth in all birth settings.

Coverage of health-related articles in major local newspapers of Manipur.

PubMed

Paul, Sourabh; Singh, Akoijam Brogen

2016-01-01

Newspapers have immense potential for generating health awareness on diverse issues such as hygiene, immunization, environmental pollution, and communicable disease. The present study was conducted to determine the frequency of coverage and types of health-related articles published in local newspapers of Manipur. This was a cross-sectional study conducted among the most regularly published 10 local newspapers (4 English and 6 Manipuri) of Manipur from February 2011 to January 2012. Health-related articles published in everyday local newspapers were collected after careful search and finally entered into a design Proforma under different categories. Data were analyzed using SPSS version 16. Total health-related articles published were 10,874 and maximum articles were published during February (12.8%). Maximum health-related articles were published on Wednesday (16.1%). Among all the health-related articles, almost half were related with injury followed by public health articles. Maximum public health and injury-related articles were published on Monday, but medical topics were published more on Wednesday. Newspapers of both the languages were publishing public health articles more compared to medical topics. Public health (72.9%) and injury-related articles (95.9%) were published maximum in the news items section, but medical topics (45.8%) were published maximum in the health section of the newspaper. Newspapers of both the languages published maximum small size articles. There is a room for improvement for newspapers of both the languages regarding number of health-related articles' publication, section of publication, and size of the health articles.

Volume imaging NDE and serial sectioning of carbon fiber composites

NASA Astrophysics Data System (ADS)

Hakim, Issa; Schumacher, David; Sundar, Veeraraghavan; Donaldson, Steven; Creuz, Aline; Schneider, Rainer; Keller, Juergen; Browning, Charles; May, Daniel; Ras, Mohamad Abo; Meyendorf, Norbert

2018-04-01

A composite material is a combination of two or more materials with very different mechanical, thermal and electrical properties. The various forms of composite materials, due to their high material properties, are widely used as structural materials in the aviation, space, marine, automobile, and sports industries. However, some defects like voids, delamination, or inhomogeneous fiber distribution that form during the fabricating processes of composites can seriously affect the mechanical properties of the composite material. In this study, several imaging NDE techniques such as: thermography, high frequency eddy current, ultrasonic, x-ray radiography, x-ray laminography, and high resolution x-ray CT were conducted to characterize the microstructure of carbon fiber composites. Then, a 3D analysis was implemented by the destructive technique of serial sectioning for the same sample tested by the NDE methods. To better analyze the results of this work and extract a clear volume image for all features and defects contained in the composite material, an intensive comparison was conducted among hundreds of 3D-NDE and multi serial sections' scan images showing the microstructure variation.

An atomic force microscopy study on fouling characteristics of modified PES membrane in submerged membrane bioreactor for domestic wastewater treatment

NASA Astrophysics Data System (ADS)

Liu, Shuo; Han, Hongjun; Liu, Yanping; Wang, Baozhen

2008-10-01

To investigate the fouling characteristics of modified PES membrane in submerged Membrane Bioreactor (MBR) for domestic wastewater treatment, Atomic Force Microscope (AFM) study was conducted to analyze the microstructure characteristics of PES membrane. Surface roughness and section analysis of both virgin and fouled membrane were achieved by software of NanoScope 6.12. Compared to the virgin membrane, the average roughness (Ra), square average roughness (Rms) and ten points average roughness (Rz) of fouled membrane were increased by 100.6nm, 133.7nm and 330.7nm respectively. The section analysis results indicated that the cake layer formed and membrane pore blocked were the main causes for the increase of TMP. Micro-filtration resistance analysis was conducted to support the results of AFM analysis. It is showed that membrane resistance, cake resistance, pore blocking and irreversible fouling resistance is 0.755, 1.721 and 1.386 respectively, which contributed 20%, 44%, and 36%, respectively, to total resistance of submerged MBR (at MLSS 6000mg/L and flux 21.9L/m2Â.h). The results proved that AFM could be used to properly describe the fouling characteristics of modified PES membrane in submerged MBR through roughness and section analysis.

Estimation of unemployment rates using small area estimation model by combining time series and cross-sectional data

NASA Astrophysics Data System (ADS)

Muchlisoh, Siti; Kurnia, Anang; Notodiputro, Khairil Anwar; Mangku, I. Wayan

2016-02-01

Labor force surveys conducted over time by the rotating panel design have been carried out in many countries, including Indonesia. Labor force survey in Indonesia is regularly conducted by Statistics Indonesia (Badan Pusat Statistik-BPS) and has been known as the National Labor Force Survey (Sakernas). The main purpose of Sakernas is to obtain information about unemployment rates and its changes over time. Sakernas is a quarterly survey. The quarterly survey is designed only for estimating the parameters at the provincial level. The quarterly unemployment rate published by BPS (official statistics) is calculated based on only cross-sectional methods, despite the fact that the data is collected under rotating panel design. The study purpose to estimate a quarterly unemployment rate at the district level used small area estimation (SAE) model by combining time series and cross-sectional data. The study focused on the application and comparison between the Rao-Yu model and dynamic model in context estimating the unemployment rate based on a rotating panel survey. The goodness of fit of both models was almost similar. Both models produced an almost similar estimation and better than direct estimation, but the dynamic model was more capable than the Rao-Yu model to capture a heterogeneity across area, although it was reduced over time.

Conductive carbon tape used for support and mounting of both whole animal and fragile heat-treated tissue sections for MALDI MS imaging and quantitation.

PubMed

Goodwin, Richard J A; Nilsson, Anna; Borg, Daniel; Langridge-Smith, Pat R R; Harrison, David J; Mackay, C Logan; Iverson, Suzanne L; Andrén, Per E

2012-08-30

Analysis of whole animal tissue sections by MALDI MS imaging (MSI) requires effective sample collection and transfer methods to allow the highest quality of in situ analysis of small or hard to dissect tissues. We report on the use of double-sided adhesive conductive carbon tape during whole adult rat tissue sectioning of carboxymethyl cellulose (CMC) embedded animals, with samples mounted onto large format conductive glass and conductive plastic MALDI targets, enabling MSI analysis to be performed on both TOF and FT-ICR MALDI mass spectrometers. We show that mounting does not unduly affect small molecule MSI detection by analyzing tiotropium abundance and distribution in rat lung tissues, with direct on-tissue quantitation achieved. Significantly, we use the adhesive tape to provide support to embedded delicate heat-stabilized tissues, enabling sectioning and mounting to be performed that maintained tissue integrity on samples that had previously been impossible to adequately prepare section for MSI analysis. The mapping of larger peptidomic molecules was not hindered by tape mounting samples and we demonstrate this by mapping the distribution of PEP-19 in both native and heat-stabilized rat brains. Furthermore, we show that without heat stabilization PEP-19 degradation fragments can detected and identified directly by MALDI MSI analysis. Copyright © 2012 Elsevier B.V. All rights reserved.

Three-dimensional transformation optics for arbitrary coordinate systems: transforming conductive materials and boundaries.

PubMed

Kazemzadeh, Mohammad-Rahim; Alighanbari, Abbas

2018-04-16

A three-dimensional transformation optics method, leading to homogeneous materials, applicable to any non-Cartesian coordinate systems or waveguides/objects of arbitrary cross-sections is presented. Both the conductive boundary and internal material of the desired device is determined by the proposed formulation. The method is applicable to a wide range of waveguide, radiation, and cloaking problems, and is demonstrated for circular waveguide couplers and an external cloak. An advantage of the present method is that the material properties are simplified by appropriately selecting the conductive boundaries. For instance, a right-angle circular waveguide bend is presented which uses only one homogenous material. Also, transformation of conductive materials and boundaries are studied. The conditions in which the transformed boundaries remain conductive are discussed. In addition, it is demonstrated that negative infinite conductivity can be replaced with positive conductivity, without affecting the field outside the conductive boundary. It is also observed that a negative finite conductivity can be replaced with a positive one, by accepting some small errors. The general mathematical procedure and formulation for calculating the parametric surface equations of the conductive peripheries are presented.

16 CFR 5.55 - Conduct of investigation.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Conduct of investigation. 5.55 Section 5.55 Commercial Practices FEDERAL TRADE COMMISSION ORGANIZATION, PROCEDURES AND RULES OF PRACTICE STANDARDS OF CONDUCT Disciplinary Actions Concerning Postemployment Conflict of Interest § 5.55 Conduct of...

21 CFR 868.5120 - Anesthesia conduction catheter.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Anesthesia conduction catheter. 868.5120 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5120 Anesthesia conduction catheter. (a) Identification. An anesthesia conduction catheter is a flexible tubular device used to inject...

21 CFR 868.5120 - Anesthesia conduction catheter.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Anesthesia conduction catheter. 868.5120 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5120 Anesthesia conduction catheter. (a) Identification. An anesthesia conduction catheter is a flexible tubular device used to inject...

32 CFR 147.7 - Guideline E-Personal conduct.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 32 National Defense 1 2010-07-01 2010-07-01 false Guideline E-Personal conduct. 147.7 Section 147... CIVILIAN ADJUDICATIVE GUIDELINES FOR DETERMINING ELIGIBILITY FOR ACCESS TO CLASSIFIED INFORMATION Adjudication § 147.7 Guideline E—Personal conduct. (a) The concern. Conduct involving questionable judgment...

38 CFR 21.6362 - Satisfactory conduct and cooperation.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Satisfactory conduct and cooperation. 21.6362 Section 21.6362 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Pension Recipients Satisfactory Conduct and Cooperation § 21.6362 Satisfactory conduct and cooperation...

7 CFR 1485.28 - Ethical conduct.

Code of Federal Regulations, 2013 CFR

2013-01-01

... 7 Agriculture 10 2013-01-01 2013-01-01 false Ethical conduct. 1485.28 Section 1485.28 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF... COMMODITIES Market Access Program § 1485.28 Ethical conduct. (a) A MAP Participant shall conduct its business...

7 CFR 1485.28 - Ethical conduct.

Code of Federal Regulations, 2014 CFR

2014-01-01

... 7 Agriculture 10 2014-01-01 2014-01-01 false Ethical conduct. 1485.28 Section 1485.28 Agriculture Regulations of the Department of Agriculture (Continued) COMMODITY CREDIT CORPORATION, DEPARTMENT OF... COMMODITIES Market Access Program § 1485.28 Ethical conduct. (a) A MAP Participant shall conduct its business...

21 CFR 868.5120 - Anesthesia conduction catheter.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Anesthesia conduction catheter. 868.5120 Section... (CONTINUED) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5120 Anesthesia conduction catheter. (a) Identification. An anesthesia conduction catheter is a flexible tubular device used to inject...

Design Guideline for New Generation of High-Temperature Guarded Hot Plate

NASA Astrophysics Data System (ADS)

Wu, J.; Hameury, J.; Failleau, G.; Blahut, A.; Vachova, T.; Strnad, R.; Krause, M.; Rafeld, E.; Hammerschmidt, U.

2018-02-01

This paper complements the existing measurement standards and literature for high-temperature guarded hot plates (HTGHPs) by addressing specific issues relating to thermal conductivity measurement of technical insulation at high temperatures. The examples given are focused on the designs of HTGHPs for measuring thin thermal insulation. The sensitivity studies have been carried out on major influencing factors that affect the thermal conductivity measurements using HTGHPs, e.g., the uncertainty of temperature measurements, plate flatness and center-guard gap design and imbalance. A new configuration of center-guard gap with triangular shape cross section has been optimized to obtain the same thermal resistance as a 2 mm wide gap with rectangular shape cross section that has been used in the HTGHPs at NPL and LNE. Recommendations have been made on the selections of heater plate materials, high-temperature high-emissivity coatings and miniature temperature sensors. For the first time, thermal stress analysis method has been applied to the field of HTGHPs, in order to estimate the effect of differential thermal expansion on the flatness of thin rigid specimens during thermal conductivity tests in a GHP.

38 CFR 0.735-10 - Cross-reference to employee ethical and other conduct standards and financial disclosure...

Code of Federal Regulations, 2014 CFR

2014-07-01

... employee ethical and other conduct standards and financial disclosure regulations. 0.735-10 Section 0.735... ETHICAL CONDUCT, AND RELATED RESPONSIBILITIES Standards of Ethical Conduct and Related Responsibilities of Employees § 0.735-10 Cross-reference to employee ethical and other conduct standards and financial...

38 CFR 0.735-10 - Cross-reference to employee ethical and other conduct standards and financial disclosure...

Code of Federal Regulations, 2013 CFR

2013-07-01

... employee ethical and other conduct standards and financial disclosure regulations. 0.735-10 Section 0.735... ETHICAL CONDUCT, AND RELATED RESPONSIBILITIES Standards of Ethical Conduct and Related Responsibilities of Employees § 0.735-10 Cross-reference to employee ethical and other conduct standards and financial...

28 CFR 523.20 - Good conduct time.

Code of Federal Regulations, 2011 CFR

2011-07-01

... TRANSFER COMPUTATION OF SENTENCE Good Conduct Time § 523.20 Good conduct time. (a) For inmates serving a... 28 Judicial Administration 2 2011-07-01 2011-07-01 false Good conduct time. 523.20 Section 523.20... will award 54 days credit toward service of sentence (good conduct time credit) for each year served...

28 CFR 523.20 - Good conduct time.

Code of Federal Regulations, 2013 CFR

2013-07-01

... TRANSFER COMPUTATION OF SENTENCE Good Conduct Time § 523.20 Good conduct time. (a) For inmates serving a... 28 Judicial Administration 2 2013-07-01 2013-07-01 false Good conduct time. 523.20 Section 523.20... will award 54 days credit toward service of sentence (good conduct time credit) for each year served...

28 CFR 523.20 - Good conduct time.

Code of Federal Regulations, 2012 CFR

2012-07-01

... TRANSFER COMPUTATION OF SENTENCE Good Conduct Time § 523.20 Good conduct time. (a) For inmates serving a... 28 Judicial Administration 2 2012-07-01 2012-07-01 false Good conduct time. 523.20 Section 523.20... will award 54 days credit toward service of sentence (good conduct time credit) for each year served...

28 CFR 523.20 - Good conduct time.

Code of Federal Regulations, 2014 CFR

2014-07-01

... TRANSFER COMPUTATION OF SENTENCE Good Conduct Time § 523.20 Good conduct time. (a) For inmates serving a... 28 Judicial Administration 2 2014-07-01 2014-07-01 false Good conduct time. 523.20 Section 523.20... will award 54 days credit toward service of sentence (good conduct time credit) for each year served...

Experimental investigation of the two-phase flow regimes and pressure drop in horizontal mini-size rectangular test section

NASA Astrophysics Data System (ADS)

Elazhary, Amr Mohamed; Soliman, Hassan M.

2012-10-01

An experimental study was conducted in order to investigate two-phase flow regimes and fully developed pressure drop in a mini-size, horizontal rectangular channel. The test section was machined in the form of an impacting tee junction in an acrylic block (in order to facilitate visualization) with a rectangular cross-section of 1.87-mm height on 20-mm width on the inlet and outlet sides. Pressure drop measurement and flow regime identification were performed on all three sides of the junction. Air-water mixtures at 200 kPa (abs) and room temperature were used as the test fluids. Four flow regimes were identified visually: bubbly, plug, churn, and annular over the ranges of gas and liquid superficial velocities of 0.04 ≤ JG ≤ 10 m/s and 0.02 ≤ JL ≤ 0.7 m/s, respectively, and a flow regime map was developed. Accuracy of the pressure-measurement technique was validated with single-phase, laminar and turbulent, fully developed data. Two-phase experiments were conducted for eight different inlet conditions and various mass splits at the junction. Comparisons were conducted between the present data and former correlations for the fully developed two-phase pressure drop in rectangular channels with similar sizes. Wide deviations were found among these correlations, and the correlations that agreed best with the present data were identified.

Nurses views on accepting the creation of a nurses’ health monitoring system

PubMed Central

Rasoulzadeh, Nasrin; Abbaszadeh, Abbas; Zaefarian, Reza; Khounraz, Fariba

2017-01-01

Background Nurses’ health is often accompanied by various dangers due to the nature of their career. Therefore, it is required to monitor their health. Based on designing any system, users’ views should be investigated relative to the usefulness, necessity and acceptance of the system. Then, a designing and implementing process is conducted. Objective To investigate nurses’ views on accepting the creation of a Nurses’ Health Monitoring System. Methods This cross-sectional study was conducted in 2015. Sample size was 586 nurses of Shahid Beheshti University of Medical Sciences. Sampling was conducted using multi-stage random sampling method. Research tool was a two-section researcher-made questionnaire. In the first section, demographic data were studied and in the second section, a twelve-item questionnaire was presented based on technology acceptance model. Five-item questions were regulated on perceived usefulness (PU) and perceived ease of use (PEU) and views towards creating this system. Validity of the questionnaire was approved by content validity and content validity index and its reliability was approved by Cronbach’s alpha. Data were analyzed using SPSS16 and descriptive statistics (frequency distribution, percentage, mean). Results The majority of participants (75.3%) were females between 25–35 years of age (44.4%) and (58.2%) were married. Mean work experience was 11.5±8.19. Mean perceived usefulness (PU) (17.36±2.66) and perceived ease of use (PEU) (16.75±2.65) and views towards using a Nurses’ Health Monitoring System was (16.220±3.05). Conclusion Over two-thirds of nurses demonstrated perceived usefulness and perceived ease of use as well as positive views towards creating a nurses’ health monitoring system. It is recommended to design and implement a nurses’ health monitoring system based on local culture of Iranian nurses using IT in the health sector. PMID:28713521

Metabolomics in Prediabetes and Diabetes: A Systematic Review and Meta-analysis

PubMed Central

Hruby, Adela; Toledo, Estefanía; Clish, Clary B.; Martínez-González, Miguel A.

2016-01-01

OBJECTIVE To conduct a systematic review of cross-sectional and prospective human studies evaluating metabolite markers identified using high-throughput metabolomics techniques on prediabetes and type 2 diabetes. RESEARCH DESIGN AND METHODS We searched MEDLINE and EMBASE databases through August 2015. We conducted a qualitative review of cross-sectional and prospective studies. Additionally, meta-analyses of metabolite markers, with data estimates from at least three prospective studies, and type 2 diabetes risk were conducted, and multivariable-adjusted relative risks of type 2 diabetes were calculated per study-specific SD difference in a given metabolite. RESULTS We identified 27 cross-sectional and 19 prospective publications reporting associations of metabolites and prediabetes and/or type 2 diabetes. Carbohydrate (glucose and fructose), lipid (phospholipids, sphingomyelins, and triglycerides), and amino acid (branched-chain amino acids, aromatic amino acids, glycine, and glutamine) metabolites were higher in individuals with type 2 diabetes compared with control subjects. Prospective studies provided evidence that blood concentrations of several metabolites, including hexoses, branched-chain amino acids, aromatic amino acids, phospholipids, and triglycerides, were associated with the incidence of prediabetes and type 2 diabetes. We meta-analyzed results from eight prospective studies that reported risk estimates for metabolites and type 2 diabetes, including 8,000 individuals of whom 1,940 had type 2 diabetes. We found 36% higher risk of type 2 diabetes per study-specific SD difference for isoleucine (pooled relative risk 1.36 [1.24–1.48]; I2 = 9.5%), 36% for leucine (1.36 [1.17–1.58]; I2 = 37.4%), 35% for valine (1.35 [1.19–1.53]; I2 = 45.8%), 36% for tyrosine (1.36 [1.19–1.55]; I2 = 51.6%), and 26% for phenylalanine (1.26 [1.10–1.44]; I2 = 56%). Glycine and glutamine were inversely associated with type 2 diabetes risk (0.89 [0.81–0.96] and 0.85 [0.82–0.89], respectively; both I2 = 0.0%). CONCLUSIONS In studies using high-throughput metabolomics, several blood amino acids appear to be consistently associated with the risk of developing type 2 diabetes. PMID:27208380

Influence of Feedstock Materials and Spray Parameters on Thermal Conductivity of Wire-Arc-Sprayed Coatings

NASA Astrophysics Data System (ADS)

Yao, H. H.; Zhou, Z.; Wang, G. H.; He, D. Y.; Bobzin, K.; Zhao, L.; Öte, M.; Königstein, T.

2017-03-01

To manufacture a protective coating with high thermal conductivity on drying cylinders in paper production machines, a FeCrB-cored wire was developed, and the spraying parameters for wire-arc spraying were optimized in this study. The conventional engineering materials FeCrAl and FeCrMo coatings were produced as the reference coatings under the same experimental condition. It has been shown that the oxide content in coating influences the thermal conductivity of coating significantly. The FeCrB coating exhibits a relative higher thermal conductivity due to the lower oxide content in comparison with conventional FeCrAl and FeCrMo coatings. Moreover, the oxidation of in-flight particles can be reduced by decreasing the standoff distance contributing to the increase in the thermal conductivity of coating. Total energy consumption of a papermaking machine can be significantly reduced if the coatings applied to dryer section exhibit high thermal conductivity. Therefore, the FeCrB coating developed in this study is a highly promising coating system for drying cylinders regarding the improved thermal conductivity and low operation costs in paper production industry.

The Correlation between Organizational Commitment and Occupational Burnout among the Physical Education Teachers: The Mediating Role of Self-Efficacy

ERIC Educational Resources Information Center

Yildirim, Irfan

2015-01-01

The aim of the current study was to examine the correlation between organizational commitment and occupational burnout among the physical education teachers and to determine the mediating role of their self-efficacy perceptions in this relational status. This was a relational study and conducted with cross-sectional method. Sample group was…

A Comparative Analysis of Holographic, 3D-Printed, and Computer-Generated Models: Implications for Engineering Technology Students' Spatial Visualization Ability

ERIC Educational Resources Information Center

Katsioloudis, Petros J.; Jones, Mildred V.

2018-01-01

A number of studies indicate that the use of holographic displays can influence spatial visualization ability; however, research provides inconsistent results. Considering this, a quasi-experimental study was conducted to identify the existence of statistically significant effects on sectional view drawing ability due to the impacts of holographic…

The Utility of the Montreal Cognitive Assessment as a Mental Capacity Assessment Tool for Patients with a Learning Disability

ERIC Educational Resources Information Center

Edge, Daniel; Oyefeso, Adenekan; Evans, Carys; Evans, Amber

2016-01-01

Objective: To determine the psychometric properties of the Montreal Cognitive Assessment (MoCA) in patients with a learning disability and examine it's utility for conducting mental capacity assessment. Method: This study was a cross-sectional, instrument validation study in an inpatient hospital setting, located in the East of England. The sample…

Chinese and Australian Children's Understandings of the Earth: A Cross Cultural Study of Conceptual Development

ERIC Educational Resources Information Center

Tao, Ying; Oliver, Mary; Venville, Grady

2013-01-01

The purpose of this study was to explore Chinese and Australian primary children's conceptual understandings of the Earth. The research was conducted in the interpretive paradigm and was designed to be descriptive with comparative and cross sectional elements. Participants were Year 3 and Year 6 children from three schools in Hunan Province,…

Comparison of Outpatient Services between Elderly People with Intellectual Disabilities and the General Elderly Population in Taiwan

ERIC Educational Resources Information Center

Hsu, Shang-Wei; Lin, Jin-Ding; Chiang, Po-Huang; Chang, Yu-Chia; Tung, Ho-Jui

2012-01-01

This study aims to analyze the ambulatory visit frequency and medical expenditures of the general elderly population versus the elderly with intellectual disabilities in Taiwan, while examining the effects of age, gender, urbanization and copayment status on ambulatory utilization. A cross-sectional study was conducted to analyze data from 103,183…

75 FR 68787 - Science Advisory Board Staff Office; Notification of a Public Teleconference of the Advisory...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-09

... Radiation's Second Section 812 Prospective Analysis of the benefits and costs of the Clean Air Act. DATES... Study of the Benefits and Costs of the Clean Air Act. The Council was established in 1991 pursuant to...), EPA conducts periodic studies to assess benefits and costs of the EPA's regulatory actions under the...

Dietary Patterns and Feeding Problems of Turkish Children with Intellectual Disabilities and Typically Developing Children

ERIC Educational Resources Information Center

Sayin, Kubra; Ilik, Senay

2017-01-01

This study aimed to determine whether dietary patterns and feeding problems differ among children with intellectual disabilities (ID) and typically developing children (TDC) in Turkey. This cross-sectional study was conducted in 220 (112 children with ID and 108 TDC) 7-12 aged children in Konya, Turkey. We assessed usual dietary intakes by a…

Disparity in Autism Spectrum Disorder Prevalence among Taiwan National Health Insurance Enrollees: Age, Gender and Urbanization Effects

ERIC Educational Resources Information Center

Hsu, Shang-Wei; Chiang, Po-Huang; Lin, Lam-Ping; Lin, Jin-Ding

2012-01-01

The present study aims to characterize the prevalence of autism spectrum disorders (ASDs) in Taiwan while examining the effects of age, gender, and urbanization on ASD occurrence. A cross-sectional study was conducted to analyze data from 895,639 random health insurance claimants who claimed medical services in the year 2007. Autism was defined…

Does Intellectual Disability Affect the Development of Dental Caries in Patients with Cerebral Palsy?

ERIC Educational Resources Information Center

Moreira, Rafaela Nogueira; Alcantara, Carlos Eduardo Pinto; Mota-Veloso, Isabella; Marinho, Sandra Aparecida; Ramos-Jorge, Maria L.; Oliveira-Ferreira, Fernanda

2012-01-01

The aim of this study was to evaluate if the severity of intellectual disability is a factor that affects the development of dental cavities in patients with cerebral palsy. This cross-sectional study was conducted on 165 individuals who were selected from a physical rehabilitation center, a special public school and a regular public school. Of…

Recommended Standards for Teacher Education. The Accreditation of Basic and Advanced Preparation Programs for Professional School Personnel.

ERIC Educational Resources Information Center

American Association of Colleges for Teacher Education, Washington, DC.

These recommended standards for teacher education are the result of a 3-year study conducted by the Evaluative Criteria Study Committee of AACTE in response to its mandate from the National Council on Accreditation of Teacher Education (NCATE). The recommendations are presented in two major sections, one concerned with standards for basic teacher…

Recommended Standards for Teacher Education. The Accreditation of Basic and Advanced Preparation Programs for Professional School Personnel.

ERIC Educational Resources Information Center

American Association of Colleges for Teacher Education, Washington, DC.

The recommended standards for teacher education presented in this booklet are the result of a 3-year study conducted by the Evaluative Criteria Study Committee of AACTE. The recommendations are presented in two major sections, one concerned with standards for basic teacher education programs (programs for the initial preparation of teachers…

Differences in Students' Smoking-Related Knowledge, Attitudes, and Behaviors among Public, Factory, and Private Secondary Schools in Guangzhou, China

ERIC Educational Resources Information Center

Wen, Xiaozhong; Chen, Weiqing; Qian, Zhengmin; Muscat, Joshua E.; Lu, Ciyong; Ling, Wenhua

2008-01-01

Background: The prevalence of smoking among Chinese adolescents has dramatically increased in recent years. The purpose of this study was to examine the differences in smoking-related knowledge, attitudes, and behaviors among Chinese students in 3 types of secondary schools. Methods: This cross-sectional study was conducted among 3957 students of…

Age- and Gender-Related Change in Mathematical Reasoning Ability and Some Educational Suggestions

ERIC Educational Resources Information Center

Erdem, Emrullah; Soylu, Yasin

2017-01-01

Does the mathematical reasoning ability develop with increase in age? How is mathematical reasoning ability differing according to gender? The current study is trying to find answers to these two questions. The study using cross-sectional design, was conducted with 409 (8th, 9th and 10th grade) students attending middle school and high school in…

Argument-Driven Inquiry as a Way to Help Undergraduate Students Write to Learn by Learning to Write in Chemistry

ERIC Educational Resources Information Center

Sampson, Victor; Walker, Joi Phelps

2012-01-01

This exploratory study examined how undergraduate students' ability to write in science changed over time as they completed a series of laboratory activities designed using a new instructional model called argument-driven inquiry. The study was conducted in a single section of an undergraduate general chemistry lab course offered at a large…

A Technology Leader's Role in Initiating a Flipped Classroom in a High School Math Class

ERIC Educational Resources Information Center

Caverly, Gregg

2017-01-01

A mixed methods study was conducted to measure the effectiveness of a flipped classroom in a high school discrete mathematics course. In the flipped classroom, students watched videos of the teacher's lesson for homework while completing problems during class. Two sections of the course were involved in the study, with one group receiving the…

Serum Uric Acid, Hyperuricemia and Body Mass Index in Children and Adolescents with Intellectual Disabilities

ERIC Educational Resources Information Center

Lin, Jin-Ding; Lin, Pei-Ying; Lin, Lan-Ping; Hsu, Shang-Wei; Yen, Chia-Feng; Fang, Wen-Hui; Wu, Sheng-Ru; Chien, Wu-Chien; Loh, Ching-Hui; Chu, Cordia M.

2009-01-01

The aims of the preset study were to describe the profile of serum uric acid, the prevalence of hyperuricemia and its risk factors among children and adolescents with intellectual disabilities. We conducted a cross-sectional study of 941 children and adolescents with intellectual disabilities (aged 4-18 years) who participated in annual health…

Congressionally Mandated Studies of College Costs and Prices. NCES 2003-171

ERIC Educational Resources Information Center

National Center for Education Statistics, 2002

2002-01-01

In its 1998 Amendments to the Higher Education Act, Congress directed the Commissioner of Education Statistics to conduct a study of higher education costs paid by institutions and prices paid by students and their families for a postsecondary education. (For the full law, see: http://www.ed.gov/legislation/HEA/sec101C.html). Section 131 of the…

Shuttle cryogenic supply system optimization study. Volume 1: Management supply, sections 1 - 3

NASA Technical Reports Server (NTRS)

1973-01-01

An analysis of the cryogenic supply system for use on space shuttle vehicles was conducted. The major outputs of the analysis are: (1) evaluations of subsystem and integrated system concepts, (2) selection of representative designs, (3) parametric data and sensitivity studies, (4) evaluation of cryogenic cooling in environmental control subsystems, and (5) development of mathematical model.

Factors Associated with the Utilization and Quality of Prenatal Care in Western Rural Regions of China

ERIC Educational Resources Information Center

Dongxu, Wang; Yuhui, Shi; Stewart, Donald; Chun, Chang; Chaoyang, Li

2012-01-01

Purpose: The paper seeks to identify key features of prenatal care utilization and quality in western regions of China and to determine the factors affecting the quality of prenatal care. Design/methodology/approach: A descriptive, cross-sectional study was conducted. The instrument for the study was a 10-stem respondent-administered, structured…

The Transition to Parenthood: Stress, Resources, and Gender Differences in a Chinese Society

ERIC Educational Resources Information Center

Lu, Luo

2006-01-01

This study aimed to explore the parenthood transition in a Chinese cultural context. Three hundred sixty-four parents (201 females, 163 males) took part in this panel study conducted twice at 6 weeks before and 6 weeks after the birth of their children. Results showed that (a) in cross-sectional analyses, parenthood stress had consistent negative…

Assessing the Desired and Actual Levels of Teachers' Participation in Decision-Making in Secondary Schools of Ethiopia

ERIC Educational Resources Information Center

Bademo, Yismaw; Tefera, Bekalu Ferede

2016-01-01

This study was conducted to assess the desired and actual levels of teachers' participation in decision-making process in Ethiopian secondary schools. For this, the study employed a cross-sectional survey design collecting data from sampled secondary school teachers (n = 258) found in Assosa Zone, Benishangual Gumuz Regional state, Ethiopia.…

Corporate Takeovers: Assessment of Resulting Training Needs. Training and Development Research Center Project Number Thirty-Three.

ERIC Educational Resources Information Center

Bjorkquist, David C.

This document reports on a study of the training needs that result from actual or impending corporate takeovers, based on needs assessments at three corporations conducted by students as part of a university class over a period of 10 weeks. The first section describes the study's background and methodology. The qualitative research methodology…

Critical Questions and Argument Stratagems: A Framework for Enhancing and Analyzing Students' Reasoning Practices

ERIC Educational Resources Information Center

Nussbaum, E. Michael; Edwards, Ordene V.

2011-01-01

This article explores the concepts of "critical questions" (from D. N. Walton, 1996) and "integrative" and "refutational argument stratagems" as an approach for teaching argumentation and critical thinking. A study was conducted for 6 months in 3 sections of a 7th-grade social studies classroom in which 30 students discussed and wrote about…

A Dyadic Analysis of Head Start Parents' Depressive Symptoms and Parent Involvement: Sense of Mastery as a Mediator

ERIC Educational Resources Information Center

Meng, Christine; Cheng, Ya-Fang

2017-01-01

This study used the actor-partner interdependence mediation model to examine the association among parents' depressive symptoms, sense of mastery, and parent involvement. To address the research goal, this study conducted secondary analysis using the cross-sectional data collected from the 2000 cohort of the Head Start Family and Child Experiences…

Nutrition Education and Training Needs Assessment Project for Federal Fiscal Year 1993: Texas Nutrition Education & Training. Final Annual Report.

ERIC Educational Resources Information Center

Martin, Ruth E.; Hoover, Linda C.

This report, organized into two parts, presents the needs assessment study conducted for the state of Texas. The first section describes Phase One of the study which identified the goals and criteria pertaining to each of the NET target populations, namely: children, parents, educators, food service personnel, and administrators. The second part…

General Public Space Travel and Tourism. Volume 2; Workshop Proceedings

NASA Technical Reports Server (NTRS)

ONeil, D. (Compiler); Mankins, J. (Editor); Bekey, I. (Editor); Rogers, T. (Editor); Stallmer, E. (Editor); Piland, W. (Editor)

1999-01-01

The Space Transportation Association and NASA conducted a General Public Space Travel study between 1996 and 1998. During the study, a workshop was held at Georgetown University. Participants included representatives from the travel, aerospace, and construction industries. This report is the proceedings from that workshop. Sections include infrastructure needs, travel packages, policy related issues, and potential near-term activities.

Differences in Addiction Severity between Social and Probable Pathological Gamblers among Substance Abusers in Treatment in Rio de Janeiro

ERIC Educational Resources Information Center

Mathias, Ana Carolina R.; Vargens, Renata W.; Kessler, Felix H.; Cruz, Marcelo S.

2009-01-01

There is a strong association between pathological gambling and substance abuse. The objective of this study is to identify the differences between substance abusers with and without gambling problems. A cross sectional study was conducted interviewing with Addiction Severity Index (ASI) and South Oaks Gambling Screen (SOGS), alcohol and drug…

Learning from Non-Reported Data: Interpreting Missing Body Mass Index Values in Young Children

ERIC Educational Resources Information Center

Arbour-Nicitopoulos, Kelly P.; Faulkner, Guy E.; Leatherdale, Scott T.

2010-01-01

The objective of this study was to examine the pattern of relations between missing weight and height (BMI) data and a range of demographic, physical activity, sedentary behavior, and academic measures in a young sample of elementary school children. A secondary analysis of a large cross-sectional study, PLAY-On, was conducted using self-reported…

The Analysis of Factors and Levels Associated with Lecturers' Motivation and Job Satisfaction in University of Rwanda

ERIC Educational Resources Information Center

Munyengabe, Sylvestre; He, Haiyan; Yiyi, Zhao

2016-01-01

It is difficult to expect good performance of students in universities without having a motivated lecturing staff. The study aimed to correlate the levels of lecturers' motivation and job satisfaction and find out factors associated with. A cross-sectional study was conducted between February and April 2016. Structured online questionnaires of the…

Microstructural effects on the deformation and fracture of the alloy Ti-25Al-10Nb-3B-1Mo. Final report, 1 July 1988-15 December 1992

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

Ward, C.H.

1992-12-01

The effects of microstructure and temperature on tensile and fracture behavior were explored for the titanium aluminide alloy Ti-25Al-lONb-3V-lMo (atomic percent). Three microstructures were selected for this study in an attempt to determine the role of the individual microstructural constituents. the three microstructures studied were an alpha-2 + beta processed microstructure with a fine Widmanstaetten microstructure, a beta processed microstructure with a fine Widmanstaetten microstructure, and a beta processed microstructure with a coarse Widmanstaetten microstructure. Tensile testing of both round and flat specimens was conducted in vacuum at elevated temperature and in air at room and elevated temperatures. Extensive fractographymore » and specimen sectioning were used to study tensile deformation and the effects of environment on this alloy. Room temperature fracture toughness testing using compact tension specimens was conducted. Elevated temperature toughness testing was performed using J-bend bar specimens in an air environment. Again, extensive fractography and specimen sectioning were used to study the elevated temperature toughening mechanisms of this alloy.... Titanium, Titanium aluminide, Intermetallic, Fracture toughness, Tensile behavior, Fractography environmental interaction.« less

International Perspectives on Family Violence.

ERIC Educational Resources Information Center

Gelles, Richard J.; Cornell, Claire Pedrick

This paper reviews a sampling of the literature on child abuse, spouse abuse, and family violence from around the world. The 72 books, journal articles, newspaper articles, and legislative reports which are included cover the period 1960-1981. A section on where family violence research has been conducted includes studies on child abuse and…

9 CFR 112.7 - Special additional requirements.

Code of Federal Regulations, 2012 CFR

2012-01-01

... Section 112.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... immunity studies conducted as prescribed in § 113.209, paragraph (b) or (c), or both. (d) In the case of a... dose 1 year later. (6) Subsequent revaccination as determined from the results of duration of immunity...

9 CFR 112.7 - Special additional requirements.

Code of Federal Regulations, 2011 CFR

2011-01-01

... Section 112.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... immunity studies conducted as prescribed in § 113.209, paragraph (b) or (c), or both. (d) In the case of a... dose 1 year later. (6) Subsequent revaccination as determined from the results of duration of immunity...

9 CFR 112.7 - Special additional requirements.

Code of Federal Regulations, 2013 CFR

2013-01-01

... Section 112.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... immunity studies conducted as prescribed in § 113.209, paragraph (b) or (c), or both. (d) In the case of a... dose 1 year later. (6) Subsequent revaccination as determined from the results of duration of immunity...

9 CFR 112.7 - Special additional requirements.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Section 112.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF... immunity studies conducted as prescribed in § 113.209, paragraph (b) or (c), or both. (d) In the case of a... dose 1 year later. (6) Subsequent revaccination as determined from the results of duration of immunity...

Illinois Tech Prep Planning Strategies.

ERIC Educational Resources Information Center

Illinois Univ., Urbana. Dept. of Vocational and Technical Education.

This tech prep planning handbook is based on the research conducted at the Office of Community College Research and Leadership, University of Illinois at Urbana-Champaign. The study involved information gathering procedures at each of the 17 tech prep pilot sites about their planning activities. Seven sections are included: (1) tech prep in…

Self-Medication among School Students

ERIC Educational Resources Information Center

ALBashtawy, Mohammed; Batiha, Abdul-Monim; Tawalbeh, Loai; Tubaishat, Ahmad; AlAzzam, Manar

2015-01-01

Self-medication, usually with over-the-counter (OTC) medication, is reported as a community health problem that affects many people worldwide. Most self-medication practice usually begins with the onset of adolescence. A school-based cross-sectional study was conducted in Mafraq Governorate, Jordan, using a simple random sampling method to select…

Cross-Sectional Predictors of "Risk" for School Failure

ERIC Educational Resources Information Center

Petridou, Alexandra; Karagiorgi, Yiasemina

2016-01-01

Since school failure has detrimental effects on students and on society, education policy needs to address students "at risk," and support them to reach their potential. This study used data from the longitudinal national Programme for Functional Literacy (PfL) conducted in Cyprus to identify students "at risk" and aimed to…

Life Satisfaction Among Korean Children and Youth: A Developmental Perspective

ERIC Educational Resources Information Center

Park, Nansook

2005-01-01

A cross-sectional study of developmental differences and similarities in the levels and correlates of life satisfaction was conducted with 716 South Korean students in elementary, middle and high school. With age, global and domain-specific life satisfaction (with family, school, living environment and self) decreased; satisfaction with friends…

Understanding Barriers to Continence Care in Institutions

ERIC Educational Resources Information Center

Tannenbaum, Cara; Labrecque, Danielle; Lepage, Christiane

2005-01-01

This work seeks to identify factors that facilitate or diminish care-providers' propensity to improve continence care in long-term care (LTC) settings. We conducted a cross-sectional qualitative study using focus group methodology in four long-term care institutions in Montreal, QC. Forty-two nurses, nursing assistants, and orderlies caring for…

The Logic of Equity Practice in "Queensland State Education"--2010

ERIC Educational Resources Information Center

Taylor, Sandra; Singh, Parlo

2005-01-01

This paper reports on an interview-based study which explored the implementation of a major policy initiative in Queensland, Australia, with particular attention to social justice issues. Interviews were conducted with key policy actors in three sections of the bureaucracy: strategic directions, performance and measurement; curriculum and…

Electromagnetic surveys to detect clay-rich sediment in the Rio Grande inner valley, Albuquerque area, New Mexico

USGS Publications Warehouse

Bartolino, James R.; Sterling, Joseph M.

2000-01-01

Information on the presence of clay-rich layers in the inner-valley alluvium is essential for quantifying the amount of water transmitted between the Rio Grande and the Santa Fe Group aquifer system. This report describes a study that used electromagnetic surveys to provide this information. In the first phase of the study, electromagnetic soundings were made using time-domain and frequency-domain electro- magnetic methods. On the basis of these initial results, the time- domain method was judged ineffective because of cultural noise in the study area, so subsequent surveys were made using the frequency-domain method. For the second phase of the study, 31 frequency-domain electromagnetic surveys were conducted along the inner valley and parallel to the Rio Grande in the Albuquerque area in the spring and summer of 1997 to determine the presence of hydrologically significant clay-rich layers buried in the inner-valley alluvium. For this report, the 31 survey sections were combined into 10 composite sections for ease of interpretation. Terrain-conductivity data from the surveys were modeled using interpretation software to produce geoelectric cross sections along the survey lines. This modeling used lithologic logs from two wells installed near the survey lines: the Bosque South and Rio Bravo 5 wells. Because of cultural interference, location of the wells and soundings, complex stratigraphy, and difficulty interpreting lithology, such interpretation was inconclusive. Instead, a decision process based on modeling results was developed using vertical and horizontal dipole 40-meter intercoil spacing terrain-conductivity values. Values larger than or equal to 20 millisiemens per meter were interpreted to contain a hydrologically significant thickness of clay-rich sediment. Thus, clay-rich sediment was interpreted to underlie seven segments of the 10 composited survey lines, totaling at least 2,660 meters of the Rio Grande inner valley. The longest of these clay-rich segments is a 940-meter reach between Bridge and Rio Bravo Boulevards.

Hearing loss in workers exposed to epoxy adhesives and noise: a cross-sectional study.

PubMed

Yang, Hsiao-Yu; Shie, Ruei-Hao; Chen, Pau-Chung

2016-02-18

Epoxy adhesives contain organic solvents and are widely used in industry. The hazardous effects of epoxy adhesives remain unclear. The objective of this study was to investigate the risk of hearing loss among workers exposed to epoxy adhesives and noise. Cross-sectional study. For this cross-sectional study, we recruited 182 stone workers who were exposed to both epoxy adhesives and noise, 89 stone workers who were exposed to noise only, and 43 workers from the administrative staff who had not been exposed to adhesives or noise. We obtained demographic data, occupational history and medical history through face-to-face interviews and arranged physical examinations and pure-tone audiometric tests. We also conducted walk-through surveys in the stone industry. A total of 40 representative noise assessments were conducted in 15 workplaces. Air sampling was conducted at 40 workplaces, and volatile organic compounds were analysed using the Environmental Protection Agency (EPA) TO-15 method. The mean sound pressure level was 87.7 dBA (SD 9.9). The prevalence of noise-induced hearing loss was considerably increased in the stone workers exposed to epoxy adhesives (42%) compared with the stone workers who were not exposed to epoxy adhesives (21%) and the administrative staff group (9.3%). A multivariate logistic regression analysis revealed that exposure to epoxy adhesives significantly increased the risk of hearing loss between 2 and 6 kHz after adjusting for age. Significant interactions between epoxy adhesives and noise and hearing impairment were observed at 3, 4 and 6 kHz. Epoxy adhesives exacerbate hearing impairment in noisy environments, with the main impacts occurring in the middle and high frequencies. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

Effect of Thyrotropin Suppression Therapy on Bone in Thyroid Cancer Patients

PubMed Central

Hawley, Sarah T.; Haymart, Megan R.

2016-01-01

Background. The thyroid cancer incidence is rising. Despite current guidelines, controversy exists regarding the degree and duration of thyrotropin suppression therapy. Also, its potential skeletal effects remain a concern to physicians caring for thyroid cancer patients. We conducted a review of published data to evaluate existing studies focusing on the skeletal effects of thyrotropin suppression therapy in thyroid cancer patients. Materials and Methods. A systematic search of the PubMed, Ovid/Medline, and Cochrane Central Register of Controlled Trials databases was conducted. The retained studies were evaluated for methodological quality, and the study populations were categorized into premenopausal women, postmenopausal women, and men. Results. Twenty-five pertinent studies were included. Seven studies were longitudinal and 18 were cross-sectional. Of the 25 included studies, 13 were assigned an excellent methodological quality score. Three of 5 longitudinal studies and 3 of 13 cross-sectional studies reported decreased bone mineral density (BMD) in premenopausal women; 2 of 4 longitudinal studies and 5 of 13 cross-sectional studies reported decreased BMD in postmenopausal women. The remaining studies showed no effect on BMD. The only longitudinal study of men showed bone mass loss; however, cross-sectional studies of men did not demonstrate a similar effect. Conclusion. Studies to date have yielded conflicting results on the skeletal effects of thyrotropin suppression therapy and a knowledge gap remains, especially for older adults and men. Existing data should be cautiously interpreted because of the variable quality and heterogeneity. Identifying groups at risk of adverse effects from thyrotropin suppression therapy will be instrumental to providing focused and tailored thyroid cancer treatment. Implications for Practice: The standard treatment for thyroid cancer includes total thyroidectomy with or without radioactive iodine ablation, often followed by thyrotropin suppression therapy. Despite current guidelines, controversy exists regarding the degree and duration of thyrotropin suppression therapy, and discordant results have been reported on its adverse effects on bone. The present review provides physicians with existing data on the skeletal effects of thyrotropin suppression therapy, highlighting the need for further research to identify the groups at risk of adverse skeletal effects. This knowledge will aid in developing tailored thyroid cancer treatment. PMID:26659220

Effect of Thyrotropin Suppression Therapy on Bone in Thyroid Cancer Patients.

PubMed

Papaleontiou, Maria; Hawley, Sarah T; Haymart, Megan R

2016-02-01

The thyroid cancer incidence is rising. Despite current guidelines, controversy exists regarding the degree and duration of thyrotropin suppression therapy. Also, its potential skeletal effects remain a concern to physicians caring for thyroid cancer patients. We conducted a review of published data to evaluate existing studies focusing on the skeletal effects of thyrotropin suppression therapy in thyroid cancer patients. A systematic search of the PubMed, Ovid/Medline, and Cochrane Central Register of Controlled Trials databases was conducted. The retained studies were evaluated for methodological quality, and the study populations were categorized into premenopausal women, postmenopausal women, and men. Twenty-five pertinent studies were included. Seven studies were longitudinal and 18 were cross-sectional. Of the 25 included studies, 13 were assigned an excellent methodological quality score. Three of 5 longitudinal studies and 3 of 13 cross-sectional studies reported decreased bone mineral density (BMD) in premenopausal women; 2 of 4 longitudinal studies and 5 of 13 cross-sectional studies reported decreased BMD in postmenopausal women. The remaining studies showed no effect on BMD. The only longitudinal study of men showed bone mass loss; however, cross-sectional studies of men did not demonstrate a similar effect. Studies to date have yielded conflicting results on the skeletal effects of thyrotropin suppression therapy and a knowledge gap remains, especially for older adults and men. Existing data should be cautiously interpreted because of the variable quality and heterogeneity. Identifying groups at risk of adverse effects from thyrotropin suppression therapy will be instrumental to providing focused and tailored thyroid cancer treatment. The standard treatment for thyroid cancer includes total thyroidectomy with or without radioactive iodine ablation, often followed by thyrotropin suppression therapy. Despite current guidelines, controversy exists regarding the degree and duration of thyrotropin suppression therapy, and discordant results have been reported on its adverse effects on bone. The present review provides physicians with existing data on the skeletal effects of thyrotropin suppression therapy, highlighting the need for further research to identify the groups at risk of adverse skeletal effects. This knowledge will aid in developing tailored thyroid cancer treatment. ©AlphaMed Press.

Novel Thin Film Sensor Technology for Turbine Engine Hot Section Components

NASA Technical Reports Server (NTRS)

Wrbanek, John D.; Fralick, Gustave C.

2007-01-01

Degradation and damage that develops over time in hot section components can lead to catastrophic failure of the turbine section of aircraft engines. A range of thin film sensor technology has been demonstrated enabling on-component measurement of multiple parameters either individually or in sensor arrays including temperature, strain, heat flux, and flow. Conductive ceramics are beginning to be investigated as new materials for use as thin film sensors in the hot section, leveraging expertise in thin films and high temperature materials. The current challenges are to develop new sensor and insulation materials capable of withstanding the extreme hot section environment, and to develop techniques for applying sensors onto complex high temperature structures for aging studies of hot propulsion materials. The technology research and development ongoing at NASA Glenn Research Center for applications to future aircraft, launch vehicles, space vehicles, and ground systems is outlined.

49 CFR 237.107 - Conduct of bridge inspections.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 49 Transportation 4 2011-10-01 2011-10-01 false Conduct of bridge inspections. 237.107 Section 237... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION BRIDGE SAFETY STANDARDS Bridge Inspection § 237.107 Conduct of bridge inspections. Bridge inspections shall be conducted under the direct supervision of a designated...

21 CFR 868.5130 - Anesthesia conduction filter.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Anesthesia conduction filter. 868.5130 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5130 Anesthesia conduction filter. (a) Identification. An anesthesia conduction filter is a microporous filter used while administering to a patient...

21 CFR 868.5130 - Anesthesia conduction filter.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Anesthesia conduction filter. 868.5130 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5130 Anesthesia conduction filter. (a) Identification. An anesthesia conduction filter is a microporous filter used while administering to a patient...

21 CFR 868.5130 - Anesthesia conduction filter.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 21 Food and Drugs 8 2012-04-01 2012-04-01 false Anesthesia conduction filter. 868.5130 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5130 Anesthesia conduction filter. (a) Identification. An anesthesia conduction filter is a microporous filter used while administering to a patient...

21 CFR 868.5130 - Anesthesia conduction filter.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 21 Food and Drugs 8 2011-04-01 2011-04-01 false Anesthesia conduction filter. 868.5130 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5130 Anesthesia conduction filter. (a) Identification. An anesthesia conduction filter is a microporous filter used while administering to a patient...

21 CFR 868.5130 - Anesthesia conduction filter.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 21 Food and Drugs 8 2013-04-01 2013-04-01 false Anesthesia conduction filter. 868.5130 Section 868...) MEDICAL DEVICES ANESTHESIOLOGY DEVICES Therapeutic Devices § 868.5130 Anesthesia conduction filter. (a) Identification. An anesthesia conduction filter is a microporous filter used while administering to a patient...

13 CFR 105.402 - Standards of Conduct Counselors.

Code of Federal Regulations, 2010 CFR

2010-01-01

... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Standards of Conduct Counselors. 105.402 Section 105.402 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION STANDARDS OF... Conduct Counselors. (a) The SBA Standards of Conduct Counselor is the Designated Agency Ethics Official...

49 CFR 237.107 - Conduct of bridge inspections.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 49 Transportation 4 2010-10-01 2010-10-01 false Conduct of bridge inspections. 237.107 Section 237... ADMINISTRATION, DEPARTMENT OF TRANSPORTATION BRIDGE SAFETY STANDARDS Bridge Inspection § 237.107 Conduct of bridge inspections. Bridge inspections shall be conducted under the direct supervision of a designated...

Cooling of Gas Turbines. 6; Computed Temperature Distribution Through Cross Section of Water-Cooled Turbine Blade

NASA Technical Reports Server (NTRS)

Livingood, John N. B.; Sams, Eldon W.

1947-01-01

A theoretical analysis of the cross-sectional temperature distribution of a water-cooled turbine blade was made using the relaxation method to solve the differential equation derived from the analysis. The analysis was applied to specific turbine blade and the studies icluded investigations of the accuracy of simple methods to determine the temperature distribution along the mean line of the rear part of the blade, of the possible effect of varying the perimetric distribution of the hot gas-to -metal heat transfer coefficient, and of the effect of changing the thermal conductivity of the blade metal for a constant cross sectional area blade with two quarter inch diameter coolant passages.

Relationship between placenta location and resolution of second trimester placenta previa.

PubMed

Feng, Yun; Li, Xue-Yin; Xiao, Juan; Li, Wei; Liu, Jing; Zeng, Xue; Chen, Xi; Chen, Kai-Yue; Fan, Lei; Chen, Su-Hua

2017-06-01

This prospective study was conducted to assess the rate of resolution of second trimester placenta previa in women with anterior placenta and posterior placenta, and that in women with and without previous cesarean section. In this study, placenta previa was defined as a placenta lying within 20 mm of the internal cervical os or overlapping it. We recruited 183 women diagnosed with previa between 20 +0 weeks and 25 +6 weeks. They were grouped according to their placenta location (anterior or posterior) and history of cesarean section. Comparative analysis was performed on demographic data, resolution rate of previa and pregnancy outcomes between anterior group and posterior group, and on those between cesarean section group and non-cesarean section group. Women with an anterior placenta tended to be advanced in parity (P=0.040) and have increased number of dilatation and curettage (P=0.044). The women in cesarean section group were significantly older (P=0.000) and had more parity (P=0.000), gravidity (P=0.000), and dilatation and curettage (P=0.048) than in non-cesarean section group. Resolution of previa at delivery occurred in 87.43% women in this study. Women with a posterior placenta had a higher rate of resolution (P=0.030), while history of cesarean section made no difference. Gestational age at resolution was earlier in posterior group (P=0.002) and non-cesarean section group (P=0.008) than in anterior group and cesarean section group correspondingly. Placenta location and prior cesarean section did not influence obstetric outcomes and neonatal outcomes. This study indicates that it is more likely to have subsequent resolution of the previa when the placenta is posteriorly located for women who are diagnosed with placenta previa in the second trimester.

Reduction of the RCS of the leading edge of a conducting wing-shaped structure by means of lossless dielectric material

NASA Astrophysics Data System (ADS)

Booysen, A. J.; Pistorius, C. W. I.; Malherbe, J. A. G.

1991-06-01

The radar cross section of the leading edge of a conducting wing-shaped structure is reduced by replacing part of the structure with a lossless dielectric material. The structure retains its original external shape, thereby ensuring that the aerodynamic properties are not altered by the structural changes needed to reduce the radar cross section.

An experimental investigation of a two and a three-dimensional low speed turbulent boundary layer

NASA Technical Reports Server (NTRS)

Winkelmann, A. E.; Melnik, W. L.

1976-01-01

Experimental studies of a two and a three-dimensional low speed turbulent boundary layer were conducted on the side wall of a boundary layer wind tunnel. The 20 ft. long test section, with a rectangular cross section measuring 17.5 in. x 46 in., produced a 3.5 in. thick turbulent boundary layer at a free stream Reynolds number. The three-dimensional turbulent boundary layer was produced by a 30 deg swept wing-like model faired into the side wall of the test section. Preliminary studies in the two-dimensional boundary layer indicated that the flow was nonuniform on the 46 in. wide test wall. The nonuniform boundary layer is characterized by transverse variations in the wall shear stress and is primarily caused by nonuniformities in the inlet damping screens.

Coal Mine Roadway Stability in Soft Rock: A Case Study

NASA Astrophysics Data System (ADS)

Shen, Baotang

2014-11-01

Roadway instability has always been a major concern in deep underground coal mines where the surrounding rock strata and coal seams are weak and the in situ stresses are high. Under the high overburden and tectonic stresses, roadways could collapse or experience excessive deformation, which not only endangers mining personnel but could also reduce the functionality of the roadway and halt production. This paper describes a case study on the stability of roadways in an underground coal mine in Shanxi Province, China. The mine was using a longwall method to extract coal at a depth of approximately 350 m. Both the coal seam and surrounding rock strata were extremely weak and vulnerable to weathering. Large roadway deformation and severe roadway instabilities had been experienced in the past, hence, an investigation of the roadway failure mechanism and new support designs were needed. This study started with an in situ stress measurement programme to determine the stress orientation and magnitude in the mine. It was found that the major horizontal stress was more than twice the vertical stress in the East-West direction, perpendicular to the gateroads of the longwall panel. The high horizontal stresses and low strength of coal and surrounding rock strata were the main causes of roadway instabilities. Detailed numerical modeling was conducted to evaluate the roadway stability and deformation under different roof support scenarios. Based on the modeling results, a new roadway support design was proposed, which included an optimal cable/bolt arrangement, full length grouting, and high pre-tensioning of bolts and cables. It was expected the new design could reduce the roadway deformation by 50 %. A field experiment using the new support design was carried out by the mine in a 100 m long roadway section. Detailed extensometry and stress monitorings were conducted in the experimental roadway section as well as sections using the old support design. The experimental section produced a much better roadway profile than the previous roadway sections. The monitoring data indicated that the roadway deformation in the experimental section was at least 40-50 % less than the previous sections. This case study demonstrated that through careful investigation and optimal support design, roadway stability in soft rock conditions can be significantly improved.

Influence of strut cross-section of stents on local hemodynamics in stented arteries

NASA Astrophysics Data System (ADS)

Jiang, Yongfei; Zhang, Jun; Zhao, Wanhua

2016-05-01

Stenting is a very effective treatment for stenotic vascular diseases, but vascular geometries altered by stent implantation may lead to flow disturbances which play an important role in the initiation and progression of restenosis, especially in the near wall in stented arterial regions. So stent designs have become one of the indispensable factors needed to be considered for reducing the flow disturbances. In this paper, the structural designs of strut cross-section are considered as an aspect of stent designs to be studied in details. Six virtual stents with different strut cross-section are designed for deployments in the same ideal arterial model. Computational fluid dynamics (CFD) methods are performed to study how the shape and the aspect ratio (AR) of strut cross-section modified the local hemodynamics in the stented segments. The results indicate that stents with different strut cross-sections have different influence on the hemodynamics. Stents with streamlined cross-sectional struts for circular arc or elliptical arc can significantly enhance wall shear stress (WSS) in the stented segments, and reduce the flow disturbances around stent struts. The performances of stents with streamlined cross-sectional struts are better than that of stents with non-streamlined cross-sectional struts for rectangle. The results also show that stents with a larger AR cross-section are more conductive to improve the blood flow. The present study provides an understanding of the flow physics in the vicinity of stent struts and indicates that the shape and AR of strut cross-section ought to be considered as important factors to minimize flow disturbance in stent designs.

Validation and Reliability of the Portuguese Version of the Michigan Neuropathy Screening Instrument.

PubMed

Barbosa, Margarida; Saavedra, Ana; Severo, Milton; Maier, Christoph; Carvalho, Davide

2017-04-01

Diabetic peripheral neuropathy is very common in the diabetic population. Early screening for foot pathology is of the utmost importance. The Michigan Neuropathy Screening Instrument (MNSI) is an easy, brief, and noninvasive screening tool. The aim of this study was to validate the semantics and characteristics of both sections of the Portuguese translation of the MNSI for Portuguese diabetic patients. A cross-sectional study was performed on 87 type 1 and 2 diabetic patients at our outpatient endocrinology department. The final sample was composed of 76 patients. Nerve conduction studies were requested, but only a subsample of 42 patients agreed to participate in them. The scale was internally consistent (Cronbach's alpha > 0.70 in section A, or a clinical history questionnaire and a physical examination [section B]), and the scores of both sections were positively correlated (r = 0.70; P < 0.001). With regard to stability, MNSI scores between test/retest showed high stability (intraclass correlation coefficient = 0.91). The receiver-operating characteristic (ROC) demonstrated its validity, with ROC curve values for section A, section B, and sections A + B of 0.913, 0.798, and 0.906 respectively. Considering a cut off of ≥ 3 in section A and of ≥ 2 in section B, we obtained a sensitivity of 100% and 86%; a specificity of 64% and 61%; a positive predictive value of 80% and 73%; and a negative predictive value of 100% and 79%, respectively. The Portuguese MNSI is a reliable and valid tool for screening diabetic neuropathy. © 2016 World Institute of Pain.

A Comparison of College Freshman Achievement in Remedial English Courses and in Freshman Composition Courses at a Two-Year College.

ERIC Educational Resources Information Center

Baker, Roger G.

A study was conducted at Snow College to compare the efficiency and effectiveness of college remedial courses with that of regular courses of study. The study compared the performance of 48 students in four sections of a remedial English class with that of 24 students with similar skill levels enrolled in a freshman composition course. The…

26 CFR 301.6103(l)(2)-2 - Disclosure of returns and return information to Department of Labor for purposes of research and...

Code of Federal Regulations, 2010 CFR

2010-04-01

... Department of Labor for purposes of research and studies. 301.6103(l)(2)-2 Section 301.6103(l)(2)-2 Internal... returns and return information to Department of Labor for purposes of research and studies. (a) General... Department of Labor for purposes of, but only to the extent necessary in, conducting research and studies...

26 CFR 301.6103(l)(2)-2 - Disclosure of returns and return information to Department of Labor for purposes of research and...

Code of Federal Regulations, 2011 CFR

2011-04-01

... Department of Labor for purposes of research and studies. 301.6103(l)(2)-2 Section 301.6103(l)(2)-2 Internal... returns and return information to Department of Labor for purposes of research and studies. (a) General... Department of Labor for purposes of, but only to the extent necessary in, conducting research and studies...

The Distribution of Federal Elementary-Secondary Education Grants among the States. Final Report on the Study Mandated by Congress in P.L. 100-297, Section 6207.

ERIC Educational Resources Information Center

Barro, Stephen M.

In the Hawkins-Stafford Elementary and Secondary School Improvement Amendments of 1988, Congress directed the U.S. Department of Education (ED) to conduct a study of methods used to allocate federal elementary and secondary education grants among the states. This document, the final report on that study, assesses grant distribution funding…

Confined states of individual type-II GaSb/GaAs quantum rings studied by cross-sectional scanning tunneling spectroscopy.

PubMed

Timm, Rainer; Eisele, Holger; Lenz, Andrea; Ivanova, Lena; Vossebürger, Vivien; Warming, Till; Bimberg, Dieter; Farrer, Ian; Ritchie, David A; Dähne, Mario

2010-10-13

Combined cross-sectional scanning tunneling microscopy and spectroscopy results reveal the interplay between the atomic structure of ring-shaped GaSb quantum dots in GaAs and the corresponding electronic properties. Hole confinement energies between 0.2 and 0.3 eV and a type-II conduction band offset of 0.1 eV are directly obtained from the data. Additionally, the hole occupancy of quantum dot states and spatially separated Coulomb-bound electron states are observed in the tunneling spectra.

Experimental Study of Tip Vortex Flow from a Periodically Pitched Airfoil Section

NASA Technical Reports Server (NTRS)

Zaman, Khairul; Fagan, Amy; Mankbadi, Mina

2016-01-01

An experimental investigation of tip vortex flow from a NACA0012 airfoil, pitched periodically at various frequencies, is conducted in a low-speed wind tunnel. Initially, data for stationary airfoil held fixed at various angles-of-attack are gathered. Flow visualization pictures as well as detailed cross-sectional properties areobtained at various streamwise locations using hot-wire anemometry. Data include mean velocity, streamwise vorticity as well as various turbulent stresses. Preliminary data are also acquired for periodically pitched airfoil. These results are briefly presented in this extended abstract.

Correlation of psoriasis activity with socioeconomic status: cross-sectional analysis of patients enrolled in the Psoriasis Longitudinal Assessment and Registry (PSOLAR).

PubMed

Kimball, A B; Augustin, M; Gordon, K B; Krueger, G G; Pariser, D; Fakharzadeh, S; Goyal, K; Calabro, S; Lee, S; Lin, R; Li, N; Srivastava, B; Guenther, L

2018-05-10

The interdependence between socioeconomic status and disease control in patients with severe psoriasis is not well understood. To assess whether worse disease control among patients with historically severe psoriasis correlated with negative socioeconomic status, we conducted a cross-sectional analysis from Psoriasis Longitudinal Assessment and Registry (PSOLAR), a large, observational study of psoriasis patients receiving, or eligible to receive, conventional systemic or biologic therapies. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.

Unmet needs in health training among nurses in rural Chinese township health centers: a cross-sectional hospital-based study.

PubMed

Mo, Yan; Hu, Guijie; Yi, Yanhua; Ying, Yanping; Huang, Huiqiao; Huang, Zhongxian; Lin, Jiafeng

2017-01-01

Maintaining a sufficient and competent rural nursing workforce is an important goal of the Chinese health delivery system. However, few studies have investigated the health training status or conducted a needs assessment of rural Chinese nurses during this time of great transformations in health policy. This study was conducted to explore the current health training status of nurses working in rural Chinese township health centers (THCs) and to ascertain their perceived needs. A cross-sectional survey using a self-administered structured questionnaire was conducted among 240 THC nurses in Guangxi Zhuang Autonomous Region, China from March 2014 to August 2014. The survey questionnaire was adapted from the Second Chinese Survey of Demographic Data and Training Demand for Health Professionals in THCs developed by the Ministry of Education. The nurses in THCs were young, with a low educational level. Their perceived needs for health training included further clinical studies at city-level hospitals to improve their skills and theoretical studies at medical universities in emergency medicine and general practice. Overall, 71.9% of the nurses with a secondary technical school background expected to pursue junior college studies, and 68.5% of the nurses with a junior college education expected to pursue a bachelor's degree. A decentralized program with theoretical studies at medical universities and practical studies at county hospitals was regarded as feasible by 66.9% of the respondents. Health-training programs for nurses in Chinese THCs must be improved in terms of coverage, delivery mode, and content. A decentralized degree-linked training program in which medical universities and city hospitals collaborate would be an appropriate mode of delivery.

18 CFR 3c.1 - Cross-reference to employee ethical conduct standards and financial disclosure regulations.

Code of Federal Regulations, 2011 CFR

2011-04-01

... employee ethical conduct standards and financial disclosure regulations. 3c.1 Section 3c.1 Conservation of... STANDARDS OF CONDUCT § 3c.1 Cross-reference to employee ethical conduct standards and financial disclosure... branch-wide financial disclosure regulations at 5 CFR part 2634, the Standards of Ethical Conduct for...

13 CFR 105.101 - Cross-reference to employee ethical conduct standards and financial disclosure regulations.

Code of Federal Regulations, 2011 CFR

2011-01-01

... ethical conduct standards and financial disclosure regulations. 105.101 Section 105.101 Business Credit... RESPONSIBILITIES Standards of Conduct § 105.101 Cross-reference to employee ethical conduct standards and financial... to the Standards of Ethical Conduct for Employees of the Executive Branch at 5 CFR part 2635 and the...

36 CFR § 702.2 - Conduct on Library premises.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Conduct on Library premises. § 702.2 Section § 702.2 Parks, Forests, and Public Property LIBRARY OF CONGRESS CONDUCT ON LIBRARY PREMISES § 702.2 Conduct on Library premises. (a) All persons using the premises shall conduct themselves...