نتایج جستجو برای: allometric coefficient

تعداد نتایج: 172571  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Jon F Harrison

The science of morphological allometry centers around relationships between the size of organismal structures and overall body size. Morphological allometry usually is concerned with two parameters, the slope of log–log plots of trait parameters on body mass or size (reflecting how trait size varies with body size), and the intercept of such plots (providing measures of body-size–independent tr...

A Nahar , M.A Hanif, M.A.B Siddik, M.Reaz. Chaklader,

The aim of this study was to report the size structure of finescale razorbelly minnow, Salmostoma phulo in the Payra River, Southern Bangladesh, based on length-frequency distribution (LFD), sex ratio (SR), length-weight relationships (LWR), length-length relationships (LLR), condition factors (allometric KA; Fulton’s, KF; relative, KR and relative weight, WR) and form factor (a3.0). A to...

2011
M P Bonomini MP Bonomini F Ingallina V Barone

Allometry, in general biology, measures the relative growth of a part in relation to the whole living organism. Left ventricular hypertrophy (LVH) is the heart adaptation to excessive load (systolic or diastolic). The increase in left ventricular mass leads to an increase in the electrocardiographic voltages. Based on clinical data, we compared the allometric behavior of three different ECG mar...

2013
Kylie A. Pitt Carlos M. Duarte Cathy H. Lucas Kelly R. Sutherland Robert H. Condon Hermes Mianzan Jennifer E. Purcell Kelly L. Robinson Shin-Ichi Uye

Jellyfish form spectacular blooms throughout the world's oceans. Jellyfish body plans are characterised by high water and low carbon contents which enables them to grow much larger than non-gelatinous animals of equivalent carbon content and to deviate from non-gelatinous pelagic animals when incorporated into allometric relationships. Jellyfish have, however, been argued to conform to allometr...

Journal: :Antimicrobial agents and chemotherapy 2014
S M D K Ganga Senarathna Kevin T Batty

Pharmacopeial recommendations for administration of antimalarial drugs are the same weight-based (mg/kg of body weight) doses for children and adults. However, linear calculations are known to underestimate pediatric doses; therefore, interspecies allometric scaling data may have a role in predicting doses in children. We investigated the allometric scaling relationships of antimalarial drugs u...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2014
Cyril Firmat Iván Lozano-Fernández Jordi Agustí Geir H Bolstad Gloria Cuenca-Bescós Thomas F Hansen Christophe Pélabon

The allometric-constraint hypothesis states that evolutionary divergence of morphological traits is restricted by integrated growth regulation. In this study, we test this hypothesis on a time-calibrated and well-documented palaeontological sequence of dental measurements on the Pleistocene arvicoline rodent species Mimomys savini from the Iberian Peninsula. Based on 507 specimens representing ...

2007
V. Margeta Gordana Kralik Vladimir Margeta

The aim of this study was to investigate the influence of MHS genotype on growth and development of muscle and fatty tissue in pig hams. The investigation was performed on 72 barrows divided into 4 groups according to genotype (NN and Nn) and feeding regime (standard and intensive). The data for analyses were collected by MRT imaging; the coefficients of allometric growth were calculated using ...

2009
Charles A Price Kiona Ogle Ethan P White Joshua S Weitz

Theoretical models for allometric relationships between organismal form and function are typically tested by comparing a single predicted relationship with empirical data. Several prominent models, however, predict more than one allometric relationship, and comparisons among alternative models have not taken this into account. Here we evaluate several different scaling models of plant morpholog...

Journal: :The Journal of experimental biology 1972
W A Calder J R King

Investigations in the past two decades have shown the utility of the Newtonian model of heat loss from homoiotherms which was established in the biological literature by Scholander et al. (1950a, b, c). The stimulative effect of those papers is seen in a proliferation of thermoregulatory studies (for reviews see Bartholomew, 1968; Dawson & Hudson, 1970). Sufficient data'have been generated from...

Journal: :Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2021

In order to evaluate the effect of hydropriming and Salinity stress on germination indices Niger, a factorial experiment was conducted in randomized complete block design with four replications at seed research laboratory Shahrekord University. treatments were applied five levels (0, 25, 50, 100 150 mM NaCl). Hydropriming two (control 6-hour distilled water). Results showed that effects water s...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید