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Patterns of Health-Risk Behaviors among Jordanian Adolescent Students

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Health 2015年第1期7卷 58-70页

作者： Malakeh z. Malak Community Health Nursing Faculty of Nursing Zarqa University Zarqa Jordan

Little information exists about health-risk behaviors in Jordanian adolescents especially among 15 - 19 years olds. The purpose of this study was to assess the patterns of three of health-risk behaviors, namely, diet, physical activity, and tobacco use of the Jordanian adolescent students aged 15 to 19 years old, and to compare the patterns of these behaviors between male and female adolescents. A descriptive cross-sectional design was used. A multi-stage stratified random sample was obtained from the public school educational directorate, which is affiliated to Amman governorate. A random sub sample of eight public comprehensive secondary schools was selected, four schools for females and four schools for males. A total of 750 students (375 boys and 375 girls), their ages between 15 - 19 years were included in the analysis. Data were collected by using two tools: students’ profile structured questionnaire (tool 1), and a modified version of the general School Health Survey questionnaire (tool 2). The findings of this study showed that 10.7% of students were overweight and 4.9% were obese. The majority of students had eaten less than the daily requirements of fruits, vegetables, and milk daily, while the intake of soft drinks was higher than recommended. One-fifth of students had been physically active at least 60 minutes daily. Overall, (55.5%) had tried smoking and 44.0% had smoked any other form of tobacco such as water pipe. Moreover, 62.4% had tried to quit smoking cigarettes. furthermore, there were significant differences between males and females regarding these risk behaviors. In conclusion, there are problems with Jordanian adolescents relating to diet, physical activity, and tobacco use. The results highlight the need for effective school health program that combines education, counseling and behavioral skill building along with environmental support to enhance students’ efforts, intentions, and strategies to overcome these risk behaviors. In addition, th

关键词： Adolescents Diet Nutrition Physical Activity Tobacco Use

A Home Appliance Recognition System Using the Approach of Measuring Power Consumption and Power factor on the Electrical Panel, Based on Energy Meter ICs

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Circuits and Systems 2013年第3期4卷 245-251页

作者： Jefferson z. Moro Luís f. C. Duarte Elnatan C. ferreira José A. Siqueira Dias Department of Electronic and Microelectronic State University of Campinas Campinas Brazil

Currently a large effort is being done with the intention to educate people about how much energy each electrical appliance uses in their houses, since this knowledge is the fundamental basis of energy efficiency programs that can be managed by the household owners. This paper presents a simple yet functional non-intrusive method for electric power measurement that can be applied in energy efficiency programs, in order to provide a better knowledge of the energy consumption of the appliances in a home.

关键词： Energy Consumption Energy Efficiency Energy Metering Power Measurement

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盖氏对数表附用法第14版

盖氏对数表附用法

Measurement of milk beta-hydroxybutyrate with a simple UV spectrophotometer method:an alternative assay method

1947年

作者： f.g.gauss编宫本藤吉译

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Measurement of milk beta-hydroxybutyrate with a simple UV sp...

Calculation of the Longitudinal Structure function from Regge-Like Behaviour of the gluon Distribution function in Leading Order Approximation at Low x

中国畜牧兽医学会动物毒物学分会2009年学术研讨会

作者： zHANg z g~(1,2),LIU g W~1,LI X B~1,WANg z~(1*),LI Y f~2,XU S W~2 (1.College of Animal Science and Veterinary Medicine,Jilin University, Changchun 130062 2.College of Veterinary Medicine,Northeast Agriculture University,Harbin,150030)

Ketosis is a common metabolic disorder frequently observed in dairy cows during the early lactation *** is a metabolic condition characterized by increased levels of ketone bodies in blood,urine and *** major ketone body is beta-hydroxybutyrate (BHBA).Determination of BHBA in milk samples is an important tool in the diagnosis of subclinical/clinical ketosis in dairy *** this report, we describe a novel method based on the traditional spectrophotometric approach for measuring BHBA levels in milk of dairy *** two commercial dairy farms,milk samples were taken from dairy cows within 2 months after *** spectrophotometric approach involve d two ***,in the prese nce of NAD,was oxidized by BHBA dehydrogenase to AcAc and NADH. Then NADH and nitroblue tetrazoli um were reduced by diaphorase to fo rmazan and NAD,*** amount of formazan was measured *** were prepa red as follows:milk was deproteiniz ed with perchloric acid,centrifuged, the supernatant was neutralized with KOH *** standard curve was made by a series of dilutions the BHBA standard solution.A reaction buffer was prepared,and comprised Tris buffer,Triton x-100,NBT,BHB A dehydrogenase,diaphorase and oxamic ***-buffer(pH 8.5), the reaction solution and prepared milk sample were added to centrifug e tubes,in order,and shaken vigorou *** resulting mixture was kept at 30 min at room temperature in the dark and assayed using a UV spectro *** following paramete rs were established:linearity,recove ry,repeatability,decision limit and *** fluorometric detectio n procedure as *** sample buffer comprised Tris-buffer pH 8.5, oxamic acid,NAD,rezasurin,Triton X-100,BHBA dehydrogenase and *** end-point process was read after 20 *** results showed that the standard-curve equa tion of the UV spectrophotometer method was y=0.2582x+0.0269 (R=0.9967).The reaction buffer did not react with AcAc,L-s

关键词： dairy cows beta-h ydroxybutyrate assay milk

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Chinese Physics Letters 2007年第5期24卷 1187-1190页

作者： g.R. Boroun B. Rezaie Department of Physics Razi University Kermanshah 67149 Iran

We present the calculations of fL longitudinal structure functions from DgLAP evolution equation in leading order （LO） at low-x, assuming the Regge-like behaviour of gluon distribution at this limit. The calculated results are compared with the H1 data and QCD fit. It is shown that the obtained results are very close to the mentioned methods. The proposed simple analytical relation for EL provides a t-evolution equation for the determination of the longitudinal structure function at low-x. All the results can consistently be described within the framework of perturbative QCD, which essentially shows increases as x decreases.

关键词： PROTON

Hami:going greenon the Silk Road Wind and solar power drive the development of Hami Prefecture in Xinjiang

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China Today 2012年第11期61卷 24-26页

作者： MICHAEL zRATE

MENTION "Hami" and invariably the first thing that comes to the mind for most Chinese is the region’s name sake melon -

关键词：哈密地区太阳能驱动丝绸之路环保新疆风能中国人含糖量

Tensile properties of Az31 sheet/bar and effects of texture

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中国有色金属学会会刊：英文版 2006年第A03期16卷 1741-1745页

作者：周清 g.ITOH Y.MOTOHASHI College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China Department of Mechanical Engineering College of EngineeringIbaraki UniversityHitachi 316-8511Japan Research Center for Superplasticity Ibaraki UniversityHitachi 316-8511Japan

for understanding the deformation mechanism of Az31 Mg alloy, two kinds of specimen, hot-rolled sheet and extruded bar were tested in tension at room temperature. Relatively small grain sizes ranging from 32 to 8.7μm are obtained by annealing at several temperatures. And then they were further cold-rolled with rolling angles of 0? 45?and 90? which is the angle between the rolling and the longitude direction of as-received specimen, and annealed at a temperature in recrystallization field. The yield stress were found from the stress—strain curve. The grain size dependence of the yield stress is found not in agreement with the Hall-Petch relationship. The texture of (0002) pole figure of each kind of specimen was tested by X-ray diffractometer. The specimen with strong basal texture shows large yield stress and low work-hardening rate, while the specimen with weak basal texture shows low yield stress and rapid work-hardening rate. These results are interpreted by the slip system activated in the different textures. A combined slip system was used to interpret the yield stress variation with the texture and the deformation mechanism was discussed.

关键词：镁合金机械性能金属变形张力应变分析

“Argentina Will Join the Belt and Road Initiative”--Interview with the Argentine Ambassador to China Luis María Kreckler

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China Today 2020年第11期69卷 44-47页

作者： MICHAEL zÁRATE 不详

ALTHOUgH the battle against the COVID-19 pandemic continues to rage across the world,the past few months have been so auspicious for Sino-Argentine relations that in this South American country,there has been discussion of the birth of the“ArgenChina.”In fact,China has overtaken Brazil to become Argentina’s main trading partner,a country that will also be the guest of honor at the third China International Import Expo(CIIE),to be held this month in *** the following interview with China Today,Argentina’s new ambassador to China,Luis María Kreckler,confirms that his country is making plans to join the Belt and Road Initiative(BRI)very *** decision would make Argentina the 20th country in Latin America and the Caribbean to join the initiative.

关键词： trading Road interview

“Only England during the Industrial Revolution Could Compare to China Now

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China Today 2016年第8期65卷 44-45页

作者： MICHAEL záRATE

LUIS Almagro, secretary general of the Orga- nization of American States （OAS）, paid an official visit to China from february 28 to March 2 - the first ever formal visit to Chinaby a secretary general of this organization. As the Uru- guayan ambassador to China from 2007 to 2010, he witnessed the rapid development of Chinese society. Believing China would once again support him, this time as leader of the OAS, Mr. Almagro held an ex- clusive interview with China Today during his stay in Beijing.

关键词：英语阅读理解工业革命