30 results match your criteria 449 elementary

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[Analysis of knowledge acquisition behavior of traditional Chinese medicine based on internet].

Zhongguo Zhong Yao Za Zhi 2019 Jun;44(11):2416-2420

School of Management, Beijing University of Chinese Medicine Beijing 100029, China.

The study aims at understanding the situation of Chinese residents' access to Chinese medicine health culture knowledge through the Internet and analyze its influencing factors. A multi-stage PPS sampling method was used to collect 90 720 people for questionnaire survey. The survey found thatthe probability of Chinese residents accessing Chinese medicine health culture knowledge through the Internet was 54. Read More

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Erratum: Validation of Dietary Reference Intakes for predicting energy requirements in elementary school-age children.

Nutr Res Pract 2018 10 28;12(5):449. Epub 2018 Sep 28.

Department of Physical Education, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul 02841, Korea.

[This corrects the article on p. 336 in vol. 12, PMID: 30090171. Read More

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October 2018

Congenital Heart Disease in Local and Migrant Elementary Schoolchildren in Dongguan, China.

Am J Cardiol 2016 Feb 18;117(3):461-4. Epub 2015 Nov 18.

Department of Cardiology, the Dongguan Affiliated Hospital of Medical College of Jinan University, the Fifth People's Hospital of Dongguan (also called Taiping People's Hospital of Dongguan), Guangdong, China.

The aim of this study was to determine the prevalence and treated status of congenital heart disease (CHD) in elementary schoolchildren and facilitate the long-term planning of health care, resource allocation, and development of targeted primary prevention strategies. From November 2011 to November 2012, 540,574 schoolchildren from 449 elementary schools were screened for CHD by trained doctors in Dongguan City. The schoolchildren who were suspected to have CHD were referred to a pediatric cardiologist and/or an echocardiographist for complete evaluation. Read More

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February 2016

School Breakfast Policy Is Associated with Dietary Intake of Fourth- and Fifth-Grade Students.

J Acad Nutr Diet 2016 Mar 1;116(3):449-457. Epub 2015 Oct 1.

Background: Breakfast skipping has been associated with obesity. Schools have adopted breakfast policies to increase breakfast participation. Recently, there have been concerns that students in schools where breakfast is served in the classroom may be eating two breakfasts--one at home and one at school--thereby increasing their risk of excessive energy intake and weight gain. Read More

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Development of Safe Food Handling Guidelines for Korean Consumers.

J Food Prot 2015 Aug;78(8):1541-6

Department of Science and Technology Education for Life, Seoul National University of Education, 96 SeochoJoongang-ro, Seocho-gu, Seoul, 137-742 Korea.

The purpose of this study was to develop guidelines for Korean consumers with regard to safe food handling practices at home by identifying current food handling issues. Korean consumers' behaviors regarding their safe food handling were identified via survey questionnaires that included items on individual hygiene practices, prepreparation steps when cooking, the cooking process, and the storage of leftover foods. The subjects were 417 Korean parents with elementary school children living in Seoul and Gyeonggi Province in the central area of Korea. Read More

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Stronger vection in junior high school children than in adults.

Front Psychol 2014 12;5:563. Epub 2014 Jun 12.

Faculty of Design, Kyushu University Fukuoka, Japan ; Institute for Advanced Study, Kyushu University Fukuoka, Japan ; Research Center for Applied Perceptual Science, Kyushu University Fukuoka, Japan.

Previous studies have shown that even elementary school-aged children (7 and 11 years old) experience visually induced perception of illusory self-motion (vection) (Lepecq et al., 1995, Perception, 24, 435-449) and that children of a similar age (mean age = 9.2 years) experience more rapid and stronger vection than do adults (Shirai et al. Read More

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Association between the Number of Unfamiliar Vegetables and Dietary Factors of Elementary School Children.

Prev Nutr Food Sci 2013 Dec;18(4):280-6

Department of Food Science and Nutrition, Daejin University, Gyeonggi 487-711, Korea.

Despite well established health benefits, today's children do not eat enough vegetables. The purpose of this study was to determine the association between the number of unfamiliar foods in the vegetable food group and the preference for these foods and dietary factors. Subjects were 1,072 children in 5th and 6th grades from elementary schools located in 4 cities in Gyeonggi-do, Korea. Read More

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December 2013

Meal skipping relates to food choice, understanding of nutrition labeling, and prevalence of obesity in Korean fifth grade children.

Nutr Res Pract 2012 Aug 31;6(4):328-33. Epub 2012 Aug 31.

Department of Food & Nutrition, Yongin University, Yongin 449-714, Korea.

This study was performed to investigate the differences in food choice, nutrition labeling perceptions, and prevalence of obesity due to meal skipping in Korean elementary school children. A national survey was performed in 2010 to collect data on food intake frequency, understanding of nutrition labeling, and body mass index from 2,335 fifth grade students in 118 elementary schools selected from 16 metropolitan local governments by stratified cluster sampling. The data were analyzed using the SAS 9. Read More

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RF personal exposimetry on employees of elementary schools, kindergartens and day nurseries as a proxy for child exposures.

Prog Biophys Mol Biol 2011 Dec 6;107(3):449-55. Epub 2011 Oct 6.

Frédéric Joliot-Curie National Research Institute for Radiobiology and Radiohygiene, Budapest, Hungary.

Personal RF exposimetry has been in the focus of the bioelectromagnetics community in the last few years. With a few exceptions, exposimetry studies focused on adults, because measuring the exposure of children, one of the most important target groups, introduces many complications. The main feature of our study is to select teachers and kindergarten caretakers as volunteers. Read More

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December 2011

Does contact by a family nurse practitioner decrease early school absence?

J Sch Nurs 2012 Feb 14;28(1):38-46. Epub 2011 Sep 14.

Chapel Hill Carrboro City Schools, Chapel Hill, NC 27514, USA.

Chronic early school absence (preschool through third grade) is associated with school failure. The presence of school nurses may lead to fewer absences, and nurse practitioners in school-based health centers (SBHCs) can facilitate a healthier population resulting in improved attendance. Efforts to get students back to school are unexplored in nursing literature. Read More

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February 2012

School and student characteristics associated with screen-time sedentary behavior among students in grades 5-8, Ontario, Canada, 2007-2008.

Prev Chronic Dis 2010 Nov 15;7(6):A128. Epub 2010 Oct 15.

Department of Population Studies and Surveillance, Cancer Care Ontario, 620 University Ave, Toronto ON M5G 2L7, Canada.

Introduction: We examined school and student characteristics associated with screen-time sedentary behavior.

Methods: We analyzed data collected from 2,449 students in grades 5 through 8 who attended 30 elementary schools in Ontario, Canada. We used multilevel logistic regression to examine the student- and school-level factors associated with moderate and high screen-time sedentary behavior. Read More

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November 2010

Ready-to-eat cereals are key sources of selected micronutrients among schoolchildren from public and private elementary schools in Quetzaltenango, Guatemala.

Nutr Res 2009 May;29(5):335-42

Center for Studies of Sensory Impairment, Aging and Metabolism, Guatemala City 01011, Guatemala.

This cross-sectional dietary survey aimed to assess the consumption and relative nutrient contribution of ready-to-eat cereals (RTEC) among schoolchildren from 2 social classes in an urban center in the Guatemalan province of Quetzaltenango. A total of 449 24-hour dietary records were collected using a pictorial workbook registry method among third- and fourth-grade schoolchildren. The sample population was divided between low-income, public school attendants (n = 219) and students from higher-income private institutions (n = 230). Read More

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Fruit and vegetable intake of schoolchildren in Quetzaltenango, Guatemala.

Rev Panam Salud Publica 2009 Feb;25(2):146-56

Center for Studies of Sensory Impairment, Aging and Metabolism, Guatemala City, Guatemala.

Objective: To determine if fruit and vegetable consumption among high- and low-socioeconomic status (HSES-LSES) urban schoolchildren in Quetzaltenango, Guatemala, was adequate according to World Health Organization (WHO) recommendations.

Methods: Cross-sectional data from 449 third- and fourth-grade girls and boys from 12 elementary schools were collected, analyzed, and presented by socioeconomic status and gender. Public schoolchildren were classified as LSES (n = 219) and private schoolchildren were classified as HSES (n = 230). Read More

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February 2009

[The mechanisms of formation and evolution of B chromosomes in Korean field mice Apodemus peninsulae (Mammalia, Rodentia)].

Genetika 2009 Apr;45(4):449-57

Several hypotheses concerning variations in the frequency of some elementary events determining the formation and reorganization of mammalian B chromosomes are proposed on the basis of the data on their number, morphology, and DNA composition in Korean field mice Apodemus peninsulae (Mammalia, Rodentia) from natural populations of Altai, Buryatia, Irkutsk oblast, and Primorye. The mechanisms and causes responsible for the formation of B chromosomes and differences in their organization in populations of mice from geographically separated regions are discussed. Read More

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Dietary habits of school children: representative survey in metropolitan elementary schools. Part two.

Ann Nutr Metab 2007 20;51(5):454-60. Epub 2007 Nov 20.

National Institute of Food Safety and Nutrition, Budapest, Hungary.

Background/aims: The aim of this study was to investigate the eating habits and the nutrient intake of 11- to 14-year-old school children as part of a representative nutrition and health survey in primary schools in Budapest.

Methods: A food frequency questionnaire of 875 school children, aged from 11 to 14 (449 boys and 426 girls), was recorded and evaluated. Energy and nutrient intake of 235 children (124 boys and 111 girls) was calculated in parallel by 3-day dietary record. Read More

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December 2007

Health services: results from the School Health Policies and Programs Study 2006.

J Sch Health 2007 Oct;77(8):464-85

Division of Adolescent and School Health, Centers for Disease Control and Prevention, 4770 Buford Highway, NE, Mailstop K-33, Atlanta, GA 30341, USA.

Background: The specific health services provided to students at school and the model for delivering these services vary across districts and schools. This article describes the characteristics of school health services in the United States, including state- and district-level policies and school practices.

Methods: The Centers for Disease Control and Prevention conducts the School Health Policies and Programs Study (SHPPS) every 6 years. Read More

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October 2007

Factors influencing the maintenance of nicotine abstinence among the habitants of the region of Lódź and Kalisz in the years 1996-2003.

Rocz Akad Med Bialymst 2005 ;50 Suppl 1:238-40

Department of Public Health, Medical University of Białystok, Poland.

The aim of the study was to determine the factors allowing non-smoking for the next 2 years after a 5-year period of non-smoking. A questionnaire study was performed in October 2003 among 449 of men and women chosen from among 1700 contest' 'Quit & Win' Competition participants, which was ending in 1996 2nd International Antinicotine Campaign "Quit & Win" in Poland in the region of Lódź and Kalisz. Chosen people were respondents, who during studies conducted in the years 1998 and 2001 stated that they were not smoking at all since their participation in the contest. Read More

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October 2005

The transition of sleep-wake patterns in early adolescence.

Sleep 2003 Jun;26(4):449-54

Department of Psychiatry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC.

Study Objective: To examine the relationship between school grade level and sleep-phase preference in early adolescence.

Design: A school-based cross-sectional study using a Sleep Habit Questionnaire.

Setting: NA. Read More

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Atomistic basis for the plastic yield criterion of metallic glass.

Nat Mater 2003 Jul;2(7):449-52

Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.

Because of their disordered atomic structure, amorphous metals (termed metallic glasses) have fundamentally different deformation mechanisms compared with polycrystalline metals. These different mechanisms give metallic glasses high strength, but the extent to which they affect other macroscopic deformation properties is uncertain. For example, the nature of the plastic-yield criterion is a point of contention, with some studies reporting yield behaviour roughly in line with that of polycrystalline metals, and others indicating strong fundamental differences. Read More

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Fly-like visuomotor responses of a robot using aVLSI motion-sensitive chips.

Biol Cybern 2001 Dec;85(6):449-57

Institute of Neuroinformatics ETH/Universität Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.

We explore the use of continuous-time analog very-large-scale-integrated (aVLSI) neuromorphic visual preprocessors together with a robotic platform in generating bio-inspired behaviors. Both the aVLSI motion sensors and the robot behaviors described in this work are inspired by the motion computation in the fly visual system and two different fly behaviors. In most robotic systems, the visual information comes from serially scanned imagers. Read More

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December 2001

Time in bed, quality of sleep and school functioning of children.

J Sleep Res 2000 Jun;9(2):145-53

Faculty of Social and Behavioural Sciences, University of Amsterdam, Amsterdam, the Netherlands.

This study describes the relationship of time in bed and quality of sleep with concentration and functioning at school. Neurotic and psychosomatic symptoms have been used as control variables. The sample consisted of 449 Dutch children in the seventh and eighth grades of elementary school. Read More

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Two-dimensional magnetic particles

Science 1998 Oct;282(5388):449-52

C. Stamm, F. Marty, A. Vaterlaus, V. Weich, S. Egger, U. Maier, D. Pescia, Laboratorium fur Festkorperphysik, Eidgenossische Technische Hochschule (ETH) Zurich, CH-8093 Zurich, Switzerland. U. Ramsperger, National Research Institute for M.

Single two-dimensional (2D) atomically thick magnetic particles of cobalt and iron with variable size and shape were fabricated by combining a mask technique with standard molecular beam epitaxy. Reduction of the lateral size of in-plane magnetized 2D cobalt films down to about 100 nanometers did not essentially modify their magnetic properties; although the separation of boundaries decreased greatly, neither domain penetrated the particle, nor was any sizable shape anisotropy observed. The mutual interaction of 2D cobalt particles was negligible, and the magnetic state of a single particle could be switched without modifying the state of the neighbors. Read More

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October 1998

Models for the length distributions of actin filaments: II. Polymerization and fragmentation by gelsolin acting together.

Bull Math Biol 1998 May;60(3):477-503

Department of Mathematics, University of Pittsburgh, PA 15260, USA.

In a previous paper, we studied elementary models for polymerization, depolymerization, and fragmentation of actin filaments (Edelstein-Keshet and Ermentrout, 1988, Bull. Math. Biol. Read More

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Eliciting parental report following pediatric traumatic brain injury: preliminary findings on the Pediatric Inventory of Neurobehavioral Symptoms.

Arch Clin Neuropsychol 1997 ;12(5):449-57

Department of Pediatrics, University Hospital School, University of Iowa, Iowa City, 52242, USA.

The current article presents preliminary normative data for the Pediatric Inventory of Neurobehavioral Symptoms (PINS), a parent rating scale consisting of symptoms associated with post-traumatic cerebral dysfunction, such as disinhibition, perseveration, reduced spontaneity, inappropriate affective responses, episodic phenomena, and disruptions of biologic function. Comparison data from a sample of 50 elementary age children who had sustained traumatic brain injury (TBI) reveals significant differences on the PINS total score and each of five subscale scores. Two of the 5 PINS subscales (Episodic Symptoms, Biologic Signs) significantly differentiated the TBI and Attention Deficit Hyperactivity Disorder (n = 35) groups, suggesting that these may be clinical features that distinguish post-traumatic cerebral dysfunction from developmental psychopathology. Read More

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December 2003

Synthesis and antimicrobial activities of some new tetrahydro-2H-1,3,5-thiadiazine-2-thione derivatives of cefadroxil.

Arch Pharm (Weinheim) 1991 Jul;324(7):449-53

Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.

Eleven new 7-[2-(dihydro-5-substituted-6-thioxo-2H-1,3,5-thiadiazine-3( 4H)-yl)-2- (4-hydroxyphenyl)acetamido]-3-methyl-3-cephem-4-carboxylic acid derivatives were synthesized by the reaction of cefadroxil monohydrate, formaldehyde and substituted potassium dithiocarbamate. Their structures have been elucidated by spectral data and elementary analysis. The title compounds were tested for antimicrobial activity in vitro against gram-positive bacteria (Staphylococcus aureus, Streptococcus faecalis), gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa) and yeast-like fungi (Candida albicans, C. Read More

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Factor structure of locus of control in children.

S Nowicki

J Genet Psychol 1976 Sep;129(1st Half):13-7

The purpose of the present study was to identify the factor structure of the Children's Nowicki-Strickland Internal-External Control scale. To this end, the responses of Ss at the elementary (n = 449), junior high (n = 388) and high school (n = 389) were subjected to factor analysis procedures. Both general and specific factors were found. Read More

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September 1976

Studies on the Morphology of the Elementary Bodies of Fowl Pox.

V Groupé G Rake

J Bacteriol 1947 Apr;53(4):449-54

Division of Microbiology, The Squibb Institute for Medical Research, New Brunswick, New Jersey.

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J Exp Med 1946 Oct;84(5):449-71

Hospital of The Rockefeller Institute for Medical Research.

1. T antigens of group A hemolytic streptococci have been obtained in soluble form by digestion of the bacterial cells with pepsin or trypsin. Large quantities of this antigen were readily extracted from type 1 strains, whereas only small amounts could be obtained from strains of other types. Read More

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October 1946
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