检索结果-南通市图书馆

Relationship between Children’s Body Mass Index and Parents’ Obesity and Socioeconomic Status: A Multilevel Analysis Applied with Luxembourg Data

引用

Health 2014年第17期6卷 2322-2332页

作者： Anastase Tchicaya Nathalie Lorentz Living Conditions/Health Research Team CEPS/INSTEAD Esch-sur-Alzette Luxembourg

Obesity in children is a health crisis because the problem is increasing in most developed countries. This study measures the relationship between body mass index (BMI) of children aged 7 - 12 years residing in Luxembourg and the weight and socioeconomic status of their parents. The data used are from the 2007 Socio-Economic Panel Liewen zu L?tzebuerg/European Union-Statistics on Income and Living Conditions survey, which covers a population of approximately 10,000 people. The study sample includes 775 children whose weight and height were recorded to calculate their BMI. The descriptive analysis with the socioeconomic distribution of the children’s BMI and the multilevel logistic regression of the probability to be in overweight or obese were performed. The mean BMI of children was 17.4 kg/m2 for boys and girls. The prevalence of overweight was 21.2% (including 3% who were obese). Weight status, educational level, physical activity, and eating habits of parents were associated with BMI in children. Furthermore, children of foreign nationality had 2.9 times more risk to be overweight or obese than other children of Luxembourg nationality (OR = 2.90, 95%CI: 1.38 - 6.10). Children living in household with at least one parent who was obese were 6.51 times more likely to be in overweight or obese compared to those in household with both parents normal (OR = 6.51, 95%CI: 2.48 - 17.08). Overall, nationality and weight status of parents were the main determinants of children’s weight status. Promoting healthy diets and regular physical activity and educating parents on the consequences of overweight and obesity on children’s health in adulthood are effective strategies to control overweight and obesity.

关键词： BMI Obesity Children Socioeconomic Status Luxembourg

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

OMBP: Optic Modified BackPropagation training algorithm for fast convergence of Feedforward Neural Network

OMBP: Optic Modified BackPropagation training algorithm for ...

引用

International Conference on Computer Communication and Management（ICCCM 2011）

作者： Omar Charif Hichem Omrani Philippe Trigano ceps/instead Differdange Luxembourg University of Technology of Compiegne UTC France

In this paper, we propose an algorithm for a fast training and accurate prediction for Feedforward Neural Network （FNN）. In this algorithm OMBP, we combine Optic Backpropagation （OBP） with the Modified Backpropagation algorithm （MBP）. The weights are initialized using Yam and Chow algorithm to insure the stability of OMBP and to reduce its sensitivity against initial settings. The proposed algorithm had shown an upper hand over three different algorithms in terms of number of iterations, time needed to reach the convergence and the accuracy of the prediction. We have tested the proposed algorithm on several benchmark data and compared its results with those obtained by applying the standard BackPropagation algorithm （SBP）, Least Mean Fourth algorithm （LMF）, and the Optic Backpropagation （OBP）. The criterions used in the comparisons are: number of iterations, and time needed for convergence, the error of prediction, and percentage of trials failed to converge.

关键词： Artificial Neural Network(ANN) Pattern Recognition Algorithms and Techniques.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

The Dynamics of Fragmentation in the Euro Zone: Theory and Political Implications

The Dynamics of Fragmentation in the Euro Zone: Theory and P...

引用

作者： EDMOND ALPHANDERY Université de Paris Ⅱ President of CEPS(Centre for European Policy Studies)

Four and a half years after the burst of the Euro crisis,the Eurozone economy seems to be doing *** peripheral countries,economic growth is picking up and investors from abroad are coming *** there is no denying that serious obstacles to full recovery still *** Euro zone has yet to find the right path for a return to a sustained and robust economic growth.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

中欧在贸易政策的领导力:可行否?满意否?

中欧在贸易政策的领导力:可行否?满意否?

引用

作者：胡卫年雅克·佩克曼斯李时良肖柏高 ceps

ceps的研究员认为,随着特朗普主义掀起了对全球贸易外交的争议,其他贸易大国应当扛起推动经济开放和全球化的大旗。欧盟和中国都不认同特朗普主义,而且他们有能力抵抗如果他们愿意坚定地承担起这个领导责任。欧盟和中国甚至可能考虑建...

ceps的研究员认为,随着特朗普主义掀起了对全球贸易外交的争议,其他贸易大国应当扛起推动经济开放和全球化的大旗。欧盟和中国都不认同特朗普主义,而且他们有能力抵抗如果他们愿意坚定地承担起这个领导责任。欧盟和中国甚至可能考虑建立中欧自由贸易区(FTA),虽然中国的说法很含糊:中国需要这样的自贸区,希望促进全球化。但中国刚刚进行的改革缓慢而保守,这绝对需要更大的开放度。

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

柏林墙已倒,阴影犹在

引用

中国改革 2010年第8期 92-94页

作者：丹尼尔.格罗斯欧洲政策研究中心(ceps)

并非欧洲货币联盟种下了今天许多恶果,实际上这是两起独特事件的自然结果:一是两德统一。

关键词：柏林墙阴影欧洲货币联盟 2007年信贷扩张

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A New X-band Weather Radar System with Distributed Phased-Array Front-ends: Development and Preliminary Observation Results

引用

Advances in Atmospheric Sciences 2022年第3期39卷 386-402页

作者： Xiaoqiong ZHEN Shuqing MA Hongbin CHEN Guorong WANG Xiaoping XU Siteng LI Meteorological Observation Center of China Meteorological Administration Beijing 100081China College of Electronic Engineering Chengdu University of Information TechnologyChengdu 610225China Institute of Atmospheric Physics China Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences(ceps) University of Chinese Academy of Sciences(UCAS)Beijing 100049China Eastone Washon Science and Technology Ltd. Changsha 410000China Institute of Urban Meteorology China Meteorological AdministrationBeijing 100089China

A novel weather radar system with distributed phased-array front-ends was developed. The specifications and preliminary data synthesis of this system are presented, which comprises one back-end and three or more front-ends. Each front-end, which utilizes a phased-array digital beamforming technology, sequentially transmits four 22.5°-width beams to cover the 0°–90° elevational scan within about 0.05 s. The azimuthal detection is completed by one mechanical scan of0°–360° azimuths within about 12 s volume-scan update time. In the case of three front-ends, they are deployed according to an acute triangle to form a fine detection area(FDA). Because of the triangular deployment of multiple phased-array front-ends and a unique synchronized azimuthal scanning(SAS) rule, this new radar system is named Array Weather Radar(AWR). The back-end controls the front-ends to scan strictly in accordance with the SAS rule that assures the data time differences(DTD) among the three front-ends are less than 2 s for the same detection point in the FDA. The SAS can maintain DTD < 2 s for an expanded seven-front-end AWR. With the smallest DTD, gridded wind fields are derived from AWR data, by sampling of the interpolated grid, onto a rectangular grid of 100 m ×100 m ×100 m at a 12 s temporal resolution in the FDA. The first X-band single-polarized three-front-end AWR was deployed in field experiments in 2018 at Huanghua International Airport, China. Having completed the data synthesis and processing, the preliminary observation results of the first AWR are described herein.

关键词： phased-array weather radar multiple radar front-ends synchronized azimuthal scanning(SAS) data time differences(DTD) wind fields

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

TWO ALGORITHMS FOR M-SEQUENCES

引用

Chinese Science Bulletin 1983年第7期28卷 886-889页

作者：高鸿勋 Nankai University Tianjinhis paper presents two algorithms for shift register M-sequences. The first follows the reasoning by mathematical induction and turns into the tabular form instead of graphical ones. The essentials are tabulation simplification and being axiomatized. The second follows the method of "cut-join" by an arithmetical means instead of graphical one which is available for a computer. Two remarks seem useful for programming. In the third part some comparisons and statements of the algorithms are given.

This paper presents two algorithms for shift register M-sequences. The first follows the reasoning by mathematical induction, and turns into the tabular form instead of graphical ones. The essentials are tabulation, simplification and being axiomatized. The second follows the method of 'cut-join' by an arithmetical means instead of graphical one, which is available for a computer. Two remarks seem useful for programming. In the third part some comparisons and statements of the algorithms are given.

关键词： instead graphical reasoning remarks turns steps statements register label stored

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欧元区的割裂问题:理论和政治意涵

欧元区的割裂问题:理论和政治意涵

引用

作者：埃德蒙·阿尔方戴利中国人民大学ceps(欧洲政策研究中心)

在欧债危机爆发的4年半之后,欧元区经济看似已开始好转。在边缘国家中,经济增长正重拾动能,海外投资者开始将目光重新转向了这些国家。然而,不可否认,经济的全面复苏仍存在严重障碍。欧元区还未能找到重返稳健可持续的经济增长路径。为...

在欧债危机爆发的4年半之后,欧元区经济看似已开始好转。在边缘国家中,经济增长正重拾动能,海外投资者开始将目光重新转向了这些国家。然而,不可否认,经济的全面复苏仍存在严重障碍。欧元区还未能找到重返稳健可持续的经济增长路径。为了制定出欧元区需要实施的政策,读者需要了解在欧洲货币创建以来,发挥作用的力量是什么。此前我在中国所做的讲座中,已经对这些机制阐释了我自己理论性的看法,接下

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

FINE STRUCTURE AND MORPHOGENESIS OF GOAT POXVIRUS ENVELOPE

引用

Chinese Science Bulletin 1987年第5期32卷 341-346页

作者：丁明孝傅宏兰王梅向德林施扬谷翟中和 Department of Biology Peking University Department of Biology Peking Universityhe morphogenesis of poxvirus is a very sophisticated process. Unlike other animal viruses the envelope of poxvirus is abstracted from the viroplasts instead of being derived from the biomembrane of the host cell (e. g. nuclear envelope plasma membrane and endoplasmic reticulum directly). Since the poxvirus envelope still appears after the inhibition

The morphogenesis of poxvirus is a very sophisticated process. Unlike other animal viruses, the envelope of poxvirus is abstracted from the viroplasts instead of being derived from the biomembrane of the host cell (e. g. nuclear envelope, plasma membrane and endoplasmic reticulum directly). Since the poxvirus envelope still appears after the inhibition of viral DNA synthesis, and the structure of poxvirus is relatively simple, the poxvirus

关键词： endoplasmic reticulum sophisticated envelope instead mature etching fractured DNA membranous

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

AN INVESTIGATION OF PHASES OF GRAIN BOUNDARY IN Si_3N_4 BY EM

引用

Chinese Science Bulletin 1986年第18期31卷 1228-1231页

作者：温树林冯景伟 Shanghai Institute of Geramics Academia Sinica Shanghai Institute of Geramics Academia Sinica? INTRODUCTION Si_3N_4 ceramics becomes more and more attractive as super high temperature engineering material. However the strength of this material drops down at above 1000℃. In order to solve this problem Y_2O_3 and Al_2O_3 were used as additives instead

Ⅰ. INTRODUCTION Si3N4 ceramics becomes more and more attractive as super high temperature engineering material. However, the strength of this material drops down at above 1000℃. In order to solve this problem, Y2O3 ... 详细信息

关键词： attractive additives ceramics instead diffractometry grains satisfactory starting maintain sintered

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：