This research develops an allometric model for estimation of biomass based on the height and DBH of trees in the Hyrcanian forests of Iran. An accurate allometric model reduces the uncertainty of allometric equation in biomass estimation using radar images. In this study, 317 trees were selected randomly from the 4 different dominant tree species for the development of an allometric model cover...

In order to estimate some equations of daily milk production from linear body measurements 85 local lacting goats were used in the present study. The morphostructural parameters included length, withers height, heart girth and hip weight recorded weekly 7th postpartum day up end lactation period. Four models tested measurements. A high correlation between all was obtained. significant (p<0.0...

The traditional coefficient of determination or R is the proportion of variation explained by a regression model versus the variation explained by the mean. This measure does not discriminate well between alternative self-referencing models such as site index curves. The traditional R compares the variation explained by a model with the variation about the mean dependent variable, a very simple...

The performance of an AflaSTOP dryer which utilises biomass energy for drying maize was investigated. behaviour grains in the also investigated using ten (10) thin-layer mathematical models. models were compared based on coefficient determination (R2) and Root Mean Square Error (RMSE) values between experimental predicted moisture ratios. At average air temperature 50°C velocity 2.5 m/s, at con...

—The use of model-predicted, local-scale habitat data as inputs in analyses intended to evaluate multiscale fish assemblage–habitat relationships in streams has become increasingly common as the scale at which such studies are conducted has increased. We used fish assemblage and habitat data from 208 wadeable streams in Wisconsin and Michigan to determine whether model-predicted habitat data wo...

This study aims to examine inflation, exchange rates, world oil prices and gold against the Indonesian Sharia Stock Index for 2017-2021 period. The method used in this is historical which distributive causal nature, meaning that research conducted analyze a past situation indicate direction of relationship between variables. data collection technique documentation taken through online files fro...

ABSTRACT The body weight (BW) of an animal is a vital economic trait that might help in decision-making the handling animals. objective present study was to develop equations for prediction BW Pelibuey sheep using scrotal circumference (SC). (23.40 ± 6.96 kg) and SC (20.25 6.19 cm) have been recorded 405 male at Southeastern Center Ovine Integration, Mexico. Linear, logarithmic, quadratic, expo...

There have been differences in the use of the correlation coefficient (r) or the coefficient of determination (r2) for indexing the effect size (see Rosenthal and DiMatteo, 2001; Borenstein, 2009; Elis, 2010, for reviews). I intend to investigate this issue by considering it from the point of view of matching the findings with the implied prediction. In essence my argument follows from a simpli...

sclerotinia stem rot (ssr), caused by sclerotinia sclerotiorum, is believed as the most important disease of canola (brassica napus) in iran. temporal analysis of the disease epidemics was carried out by evaluating ssr in 80 fields in four locations of: gorgan, aliabad, kalaleh and gonbad in golestan province during 2006 and 2007. scouting of the fields to record disease incidence (i) and disea...

This study compared the use of five different models to describe the growth from birth to 20 weeks of age of kids from both genders of nondescript goats. Fifty nine (59) nondescript kids were weighed weekly at the university of Maiduguri livestock teaching and research farm, Nigeria and the live weights were modeled. Biologically relevant variables were estimated for each kid from the Logistic,...