نتایج جستجو برای: age composition

تعداد نتایج: 1001173  

 The present study was carried out during 2006-2007 along the southern Caspian Sea. The species composition showed that the common kilka, Clupeonella cultriventris caspia, is dominant species with 89% and then anchovy, C. engrauliformis, has shown only 8.7% while it was already dominant species in the past decades. The overall results indicated that common kilka was replaced with anchovy kilka ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی و پایه 1390

the present study aimed at investigating the relationship between iranian efl teachers’ classroom management orientations and their teaching styles. additionally, the difference between male and female teachers’ teaching styles and classroom management orientations and their relationship with experience and age were explored. three hundred efl teachers filled in attitudes and beliefs on classro...

2017
Hyuma Makizako Hiroyuki Shimada Takehiko Doi Kota Tsutsumimoto Sangyoon Lee Sung Chul Lee Kazuhiro Harada Ryo Hotta Sho Nakakubo Seongryu Bae Kenji Harada Daisuke Yoshida Kazuki Uemura Yuya Anan Hyuntae Park Takao Suzuki

BACKGROUND The aim of this study was to describe the age-dependent changes in the parameters of physical performance and body composition in Japanese older adults who are independently dwelling in the community. We also examined whether the age-dependent changes differ among physical performance and body composition parameters. METHODS Cross-sectional data from 10 092 community-dwelling older...

2015
Lynae J. Hanks Orlando M. Gutiérrez Marcas M. Bamman Ambika Ashraf Kenneth L. McCormick Krista Casazza

BACKGROUND Circulating FGF21 levels are commonly elevated in disease states. There is limited information regarding concentrations of circulating FGF21 in the absence of disease, as well as age-related differences in body composition that may contribute to FGF21 regulation across groups. OBJECTIVE The objectives of this study were to assess FGF21 levels across age groups (childhood to elder a...

Journal: :Age and ageing 1998
M G Bemben B H Massey D A Bemben R A Boileau J E Misner

INTRODUCTION Assessing body composition is important because of the association between excess body fat or obesity and the increased risk for coronary artery disease, diabetes, hyperlipidaemia and hypertension. Methodological differences among indirect body composition techniques are a source of variability that can affect estimations of fat-free mass (FEM) or percent fat, especially for differ...

2012
Kai-Yu Xiong Hui He Yi-Ming Zhang Guo-Xin Ni

BACKGROUND Childhood obesity has become a major public health problem in China. The objective of this study was to examine the effect of age and sex on the relationship between fat-free mass (FFM) and fat mass (FM), fat-free mass index (FFMI) and fat mass index (FMI) in Chinese children using body composition chart analysis, and to compare the changing pattern with Caucasian and Japanese counte...

Journal: :Journal of field ornithology 2014
Charles R Brown Erin A Roche Mary Bomberger Brown

Variation in group size is characteristic of most social species. The extent to which individuals sort among group sizes based on age may yield insight into why groups vary in size and the age-specific costs and benefits of different social environments. We investigated the age composition of Cliff Swallow (Petrochelidon pyrrhonota) colonies of different sizes over 18 years at a long-term study...

Journal: :Current opinion in plant biology 2010
Johnathan A Napier Ian A Graham

Plant neutral lipids such as seed oil triacylglycerols play a key role in many aspects of human life, ranging from providing essential nutrition to acting as biolubricants. There is also growing interest in using plant oils as a replacement for petrochemicals, either for fuel or as a chemical feedstock. Considerable effort has been focused on modifying the fatty acid composition of seed oils an...

Journal: :Clinical science 1991
A M Forsberg E Nilsson J Werneman J Bergström E Hultman

1. A method is described enabling the determination of fat, water, electrolytes, protein, DNA, RNA and total creatine in a single sample of human muscle obtained by the percutaneous needle-biopsy technique. The amino acid content can also be analysed in the same muscle sample. 2. Fifty healthy subjects were studied: 29 between 19 and 40 years of age, 11 between 41 and 60 years of age, and 10 be...

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