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[article]
1998
arXiv
pre-print
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Let K be an n-dimensional convex body. Define the difference body by K-K= {x-y | x,y ∈ K }. ...
We estimate the volume of the section of K-K by a linear subspace F via the maximal volume of sections of K parallel to F. ...
To use random rotations for such an estimate one has to put the bodies into some specific positions. This can be achieved by comparison of the positions of the difference body and the body itself. ...
arXiv:math/9812008v1
fatcat:esysgj7275cibergkhdajtles4
Sections of the Difference Body
2000
Discrete & Computational Geometry
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Let K be an n-dimensional convex body. Define the difference body by We estimate the volume of the section of K − K by a linear subspace F via the maximal volume of sections of K parallel to F. ...
We show that for small dimensions of F this estimate is exact up to a multiplicative constant. ...
Acknowledgment The author thanks F. Barthe and the referees for their valuable remarks. 146 M. Rudelson ...
doi:10.1007/pl00009487
fatcat:svch2lyf5jg3pbnrw45pgby5ty
The imaginary and real velocity of an orbiting body based on different types of conics sections
[article]
2014
arXiv
pre-print
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Based on it, I derived them to calculate the velocity and kinetic energy for different types of conics. ...
The conics sections here (hyperbola and ellips) are generated by all maximum points of parabolas. ...
Introduction The conic sections in physics play a fundamental role, any body under influence of inverse square law force must have a trajectory that is one of conics section (parabola, ellipse, circle ...
arXiv:1312.0967v2
fatcat:zadresamq5f5nmiaf2agassxhq
0991 Relationship between the microbiota in different sections of the gastrointestinal tract, and the body weight of broiler chickens
2016
Journal of Animal Science
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The objective of the present study was to investigate the relationship between microbiota and BW in different sections of the gastrointestinal tract (GIT). ...
A total of twenty 18-day-old birds were selected based on the BW, and samples were collected from the three different sections of the GIT, which included the crop, ileum and cecum. ...
This paper was supported by the KU Research Professor Program of Konkuk University. ...
doi:10.2527/jam2016-0991
fatcat:zrjefq2vsvbeledv64lretsrx4
Understanding Differences in the Body Burden–Age Relationships of Bioaccumulating Contaminants Based on Population Cross Sections versus Individuals
2012
Environmental Health Perspectives
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age and PCB body burden based on cross-sectional data collected at different points in time. ...
Because the focus of the analyses was on the shape of the CBATs and not on absolute human body burdens, estimated body burdens for individual women (at different ages) were normalized to the average value ...
Normalized body burden ...
doi:10.1289/ehp.1104236
pmid:22472302
pmcid:PMC3339463
fatcat:wy6qj3ti65gydmtvjilvhfiwdu
Dietary Behaviour in Students with Different Body Fat Percent
2013
Proceedings of the Latvian Academy of Sciences. Section B, Natural Sciences
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The aim of the present study was to determine whether energy intake, food diversity and corrective modification of body mass differed among student groups with low, normal and high body fat percentage. ...
The results showed that 15% of students in the low, 38% in the normal and 62% in the high body fat percentage groups considered that they eat too much. ...
The aim of the present study was to determine whether energy intake, food diversity and corrective modification of body mass differed among student groups with low, normal and high body fat percentage. ...
doi:10.2478/prolas-2013-0070
fatcat:ropr2h7uqrd2tcerbofh7uhnry
Relationship between the microbiota in different sections of the gastrointestinal tract, and the body weight of broiler chickens
2016
SpringerPlus
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The objective of the present study was to investigate the relationship between microbiota and BW in different sections of the gastrointestinal tract (GIT). ...
A total of twenty 18-day-old birds were selected based on the BW, and samples were collected from the three different sections of the GIT, which included the crop, ileum and cecum. ...
This paper was supported by the KU Research Professor Program of Konkuk University. ...
doi:10.1186/s40064-016-2604-8
pmid:27386355
pmcid:PMC4927549
fatcat:kzi67qw44fghbnliibvcluqdq4
Ethnic Differences in Arterial Wave Reflection Are Mostly Explained by Differences in Body Height - Cross-Sectional Analysis of the HELIUS Study
2016
PLoS ONE
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Correction for cardiovascular risk factors only slightly reduced the difference in AIx, whereas correction for body height attenuated age and gender corrected ethnic differences in AIx the most. ...
Differences in central systolic BP were primarily determined by differences in AIx for South-Asian Surinamese and by differences in peripheral systolic BP for subjects of African origin. ...
Potential limitations of the study are its cross sectional nature and the fact that differences in ethnicity and migration history may not be generalizable to other migrant populations. ...
doi:10.1371/journal.pone.0160243
pmid:27472397
pmcid:PMC4966932
fatcat:xtrcuyxp3rcnxg6imiqka4ymzy
Correction: Ethnic Differences in Arterial Wave Reflection Are Mostly Explained by Differences in Body Height—Cross-Sectional Analysis of the HELIUS Study
2016
PLoS ONE
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in Body Height-Cross-Sectional Analysis of the HELIUS Study. ...
in Arterial Wave Reflection Are Mostly
Explained by Differences in Body Height-Cross-
Sectional Analysis of the HELIUS Study. ...
doi:10.1371/journal.pone.0168620
pmid:27977786
pmcid:PMC5158071
fatcat:t7eix2e2njdqxfeos4lhj6u2ky
Difference Between Maternal Perception and Body Weight of Their Preschool and School Child Cross-Sectional Study in the Northeast of Mexico
2022
Current Developments in Nutrition
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Objectives 1) To examine differences between maternal perception of her child body weight (MPCW) and the child' nutritional status, 2) To verify if the underestimation is more frequent in mothers of preschool ...
Conclusions Predominance of the underestimation of the child's weight was found, particularly in mothers of children are overweight-obesity, and even more notable in mothers of preschool children. ...
Difference Between Maternal Perception and Body Weight of Their Preschool and School Child Cross-Sectional Study in the Northeast of Mexico Yolanda Flores-Peña, 1 Hermelinda Avila-Alpirez, 2 Perla M. ...
doi:10.1093/cdn/nzac065.014
fatcat:e4adyxzwwfeezegyhitxyq6cyi
Sex differences in body fat distribution and carotid intima media thickness: cross sectional survey using data from the British regional heart study
2004
Journal of Epidemiology and Community Health
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Objective: To determine the role of central adiposity in explaining sex differences in carotid intima media thickness (IMT). Design: Cross sectional survey. Setting: Two British towns. ...
Adjustment for body mass index and for lifestyle risk factors had very little effect on the sex difference in mean intima media thickness. ...
participants of the British regional heart study. ...
doi:10.1136/jech.2003.014001
pmid:15252075
pmcid:PMC1732853
fatcat:cfpycpjtnvdkdf7it7awa4ydfa
Gender differences in the association between sleep duration and body mass index, percentage of body fat and visceral fat area among chinese adults: a cross-sectional study
2021
BMC Endocrine Disorders
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This study aimed to explore the association between sleep duration and body mass index (BMI), percentage of body fat (PBF) and visceral fat area (VFA) among Chinese adults, further to explore gender difference ...
Results A total of 9059 adult participants (63.08% were females) were included in the analysis. The participants aged from 19 to 91 years with the mean age of 45.0 ± 14.6 years. ...
We sincerely thank all the study participants and the staff involved in facilitating and running the study. ...
doi:10.1186/s12902-021-00913-4
pmid:34952580
pmcid:PMC8709998
fatcat:3fkgexd44bg6lhlcqahrjohy64
Studies on N-metabolism in different gastrointestinal sections of sheep using the digesta exchange technique. 4. Whole body protein metabolism
2002
Journal of Animal and Feed Sciences
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Parameters of protein turnover were measured in sheep differing in postruminal secretion and reabsorption of nitrogen. ...
As a result of the higher CF content, the intake of DM was lower in Group 2 than in Group 1 (616 vs 467 g x d" 1 ). ...
It is a pleasure to acknowledge the constructive criticism of the manuscript by Cornelia C. Metges. ...
doi:10.22358/jafs/67913/2002
fatcat:fjqjo7sqffeqjowxc3wncedndy
How different data sources and definitions of neighbourhood influence the association between food outlet availability and body mass index: a cross-sectional study
2016
Perspectives in Public Health
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4 Inconsistencies in methodologies continue to inhibit understanding of the impact of the environment on 5 body mass index (BMI). ...
To estimate the effect of these differences we assessed the impact of using 6 different definitions of neighbourhood and datasets on associations between food outlet availability 7 within the environment ...
to investigate the impact of differences in choice of data set and 41 definition of neighbourhood, we compared two different datasets of food outlet locations and three 42 different definitions of neighbourhood ...
doi:10.1177/1757913916650916
pmid:27282516
fatcat:d4vhmgoxwvbmjiijm5zakpiksq
Cultural differences in food and shape related attitudes and eating behavior are associated with differences of Body Mass Index in the same food environment: cross-sectional results from the Seafarer Nutrition Study of Kiribati and European seafarers on merchant ships
2018
BMC Obesity
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Differences between the two groups were examined using t-tests and Chi-square-tests as appropriate. ...
The present study examined differences in BMI and their association with weight, shape and nutrition related attitudes and perceptions among seafarer from Kiribati, a Pacific Island Group, and European ...
Acknowledgments The authors thank the shipping company for their support and all seafarers for participating in this study. ...
doi:10.1186/s40608-018-0180-x
pmid:29416869
pmcid:PMC5784660
fatcat:4ulm67n7zreq7buixfmze7rlrm
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