نتایج جستجو برای: allometric ratio

تعداد نتایج: 505094  

Journal: :CoRR 2011
Lingfei Wu Chengjun Wang

Allometric growth is found in many tagging systems online. That is, the number of new tags (T ) is a power law function of the active population (P ), or T ∼ P γ (γ 6= 1). According to previous studies, it is the heterogeneity in individual tagging behavior that gives rise to allometric growth. These studies consider the power-law distribution model with an exponent β, regarding 1/β as an index...

2015
L. Duncanson O. Rourke R. Dubayah

Accurate quantification of forest carbon stocks is required for constraining the global carbon cycle and its impacts on climate. The accuracies of forest biomass maps are inherently dependent on the accuracy of the field biomass estimates used to calibrate models, which are generated with allometric equations. Here, we provide a quantitative assessment of the sensitivity of allometric parameter...

Journal: :Antimicrobial agents and chemotherapy 2012
Thomas P C Dorlo Alwin D R Huitema Jos H Beijnen Peter J de Vries

Only anecdotal data are available on the pharmacokinetics (PK) of miltefosine in children suffering from visceral leishmaniasis (VL). While failure rates were higher in children with VL, steady-state concentrations appeared lower than those seen with adults. We hypothesized that the current linear dosage (in milligrams per kilogram of body weight) is too low for children and that a new dosing a...

E. Kamrani, F. Lavajoo, M. Askari, M. Sajjadi ,

The relative growth of the fiddler crab Uca sindensis in Pohl Port was studied. Ten 0.5 m2 quadrates were randomly sampled monthly during low tide periods from October 2009 to September 2010. A total of 840 crabs, 449 (53.45%) males and 391(46.5%) ‌ females, were sampled. The Carapace width of males ranged from 5.5 to13.5 mm (mean ± SD) (8.92 ± 2.04), and of females from 5.0 to 11.5 mm (mean ± ...

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...

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...

آقایی‌پور, نیلوفر, خالدیان, محمد رضا , زواره, محسن ,

In order to study the effect of seed priming by indole-3-butyric acid (IBA) on germination characteristics of pinto bean under salinity stress, a factorial laboratory experiment, based on completely randomized design with three replications, was carried out at the Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran, in 2011-2012. Three levels of pretreatment (0, 10 and 20 mg/L I...

A Afroonde B Kiani P Attarod

Due to the importance of Acer monspessulanum in Iranian mountain forests, a study was carried out to reliably estimate its woody biomass and growing volume via allometric equations. Four transects, five trees in each were chosen randomly. The characteristics of standing trees including: diameter at root collar, height, number of stems and crown width were measured, then trees were finally cut d...

Journal: :Journal of anatolian environmental and animal sciences 2021

The Coruh trout (Salmo coruhensis Turan, Kottelat & Engin, 2010) is a freshwater fish species endemic to Turkey. This study describes the allometric relationships between sagittal otolith (sagitta) measurements and total length (TL) of collected from Çam stream (Artvin, Turkey), length-weight relationship. A 82 individuals were caught with an electroshock device May 2017 April 2018. (LO), h...

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