The dispute between Canada and the United States on line of demarcation water area continental shelf in Beaufort Sea has been ongoing since mid-1970s. proposes to draw this along 141st meridian west longitude, - equidistance principle. In 2000s subject expanded include also extended two countries Arctic. Against backdrop extremely high oil prices late – mid 2010s attempts by resolve intensified...

introduction: collaborative testing is a learning strategy that provides students with the opportunity to learn and practice collaboration. this study aimed to determine the effect of collaborative testing on test performance and retention of course content in nursing students of shiraz university of medical sciences, shiraz, iran. methods: this quasi-experimental study was carried out on 84 st...

What are the mechanisms by which behavior is organized sequentially over time? The recently developed mid-session reversal (MSR) task offers new insights into this fundamental question. The typical MSR task is arranged to have a single reversed discrimination occurring in a consistent location within each session and across sessions. In this task, we examine the relevance of time, reinforcement...

The efficiency of livestock production in shortgrass steppe may be increased by grazing fourwing saltbush (Atriplex canescens [Pursh] Nutt)-dominated rangeland in late fall and/or early spring, but there is a paucity of information concerning stocking rates and animal gains. The objective of this study was to compare the effects of light and moderate stocking rates on weight gains of heifers gr...

Objective - The aim of this study was to measure the ratio of bone cortex (C) to bone diameter (D), (C/D) in radius/tibia, metacarpus /metatarsus and proximal phalanges in fore and hindlimbs to be used as a diagnostic guide in metabolic and nutritional diseases in Minature Donkey. Design- Experimental study Animals- Eight adult Minature donkeys. Procedures- Lateromedial, dorsopalmar and dors...

South Central US milkweeds (Asclepias) are critical adult nectar and larval food resources for producing the first spring last summer/fall generations of declining eastern migratory monarch butterflies (Danaus plexippus). This study addresses multiple gaps in assessment conservation priorities through analyses host selectivity, phenology, spatial density, as well niche modeled distribution, lan...

this study was investigated reproductive differences in fall and spring migrants of caspian lamprey (caspiomyzon wagneri) in the shirud river (southern caspian sea)in 2008. 89 and 15 specimens were sampled in in spring and fall, respectively. generally, fall migratory fish had a significantly lower condition factor (cf) compared to the spring migrants. there was significant relationship between...

Supply factors affecting the costs of obtaining schooling explain much the U-shaped trend in the skill premium in the U. S. across the twentieth century. Specifically, the direct costs fell dramatically in the early part of the century as a result of increased public funding and falling fertility rates during the high school movement. The foregone earning costs of schooling were also low for mi...

This paper describes an instrument capable of studying diffuse reflection of mid-infrared (mid-IR) photons on ultrafast time scales. Femtosecond mid-IR pulses are generated by difference frequency mixing the output of an optical parametric amplifier that is pumped using a regeneratively amplified Ti:Sapphire laser. Time resolution is achieved by up-converting the diffusely reflected photons wit...