this experiment was conducted for estimating the effect of row spacing and plant density on soil moisture change, wheat yield and water use efficiency in rainfed condition, using a three replicated randomized complete block design with factorial arrangement at gorgan university of agricultural sciences and natural resources farm in anbare-ololum region in 2008-2009. the treatments that used wer...

INTRODUCTION This study explores the associations of weight perceptions with actual body mass index (BMI) and attempts to lose weight in a nationally representative sample of a pediatric population. MATERIAL AND METHODS Data were collected from school students of 27 provinces in Iran, as part of "the national survey of school student high risk behaviors". We used t-test for continuous data an...

BACKGROUND As both oral and verbal apraxia are related to vocal orofacial musculature, this study aimed at identifying brain regions impaired in cases with oral and verbal apraxia. METHODS In this non-experimental study, 46 left brain damaged subjects (17 females) aged 23-84 years, were examined by oral and verbal apraxia tasks. Impaired and spared Broca's area, insula, and middle frontal gyr...

1 We are grateful to those people who donated their voices and faces for experimental stimuli, to Brynmor Thomas and Alice Murphy for their help with data collection and analysis, and to Christian Langstrof and Margaret Maclagan for providing comments on an earlier draft. This paper has also greatly benefited from the comments of Stefanie Jannedy, and three anonymous reviewers. Support for this...

Background and Purpose: Job stress is an important psychological factor. Musculoskeletal disorders are among the most common causes of disability in industrialized and developing countries. Therefore, this study aimed to assess job stress and its relationship with the prevalence of musculoskeletal disorders in office workers of Zahedan University of Medical Sciences, Iran. Materials and Met...

Here we present a new approach to calculating the square root of a quadratic matrix. Actually, the purpose of this article is to show how the Cayley-Hamilton theorem may be used to determine an explicit formula for all the square roots of $2times 2$ matrices.

The buoyancy-driven fluid flow and heat transfer in a square cavity with partially active side walls filled with Cu-water nanofluid is investigated numerically. The active parts of the left and the right side-walls of the cavity are maintained at temperatures Th and Tc, respectively, with Th>Tc. The enclosure’s top and bottom walls, as well as, the inactive parts of its side walls are kept insu...