When multiple groups of organisms experience similar environmental gradients, their patterns of differentiation might exhibit both shared and unique features. Here, we investigated the relative importance of three factors in generating body shape variation in a livebearing fish, Gambusia caymanensis, inhabiting the Cayman Islands: (i) shared patterns of divergent selection between predator regi...

This study was designed to analyze the external morphometric characteristics of Labeoboga from Head Panjnad, Alipur, Punjab, Pakistan. About 48 specimens were collected and examined address growth patterns species under for first time, together with their analysis morphological characters. The present results length-weight relationship revealed that value regression coefficient ‘b’ <3.0 accordi...

continual heat stress affects approximately 7 million hectares of wheat in developing countries, while terminal heat stress is a problem in 40% of temperate environments, which cover 36 million hectares throughout the world. heat tolerance is a quantitative and complex trait that doesn’t have much success in direct selection. for this purpose, however, a thorough understanding of physiological ...

OBJECTIVE To describe the microsurgical anatomy, branches, and anatomic relationships of the posterior cerebral artery (PCA) represented in three-dimensional images. METHODS Seventy hemispheres of 35 brain specimens were studied. They were previously injected with red silicone and fixed in 10% formalin for at least 40 days. Four of the studied specimens were frozen at -10° to -15 °C for 14 da...

Parkinson's disease affects over one million people in the United States. Although there have been remarkable advances in uncovering the pathogenesis of this disabling disorder, the etiology is speculative. Medical treatment and operative procedures provide symptomatic relief only. Compression of the cerebral peduncle of the midbrain by the posterior cerebral artery in a patient with Parkinson'...

water logging stress is one of the most important factors which affect wheat production particularly in western regions of golestan province. this experiment was carried out in order to evaluate of six genotypes (n-81-18, arta, moghan, n-80-19, urwyt-82-11 and urwyt-82-17) of bread wheat in water logging condition at 2006-2007 growing season in gorgan agricultural research station. the experime...

Peduncle saddle pack tag A padded harness will fit around the tail stock of the whale at the narrowest portion of the peduncle just before the fluke insertion point. To deploy the belt, a cantilevered pole mounted on the bow of a small inflatable will drop a spring loaded armature on the caudal terminus of the whale (Figure 1). Once triggered, the armature’s sickle shaped arms will close, latch...