سابقه و هدف: سلامت خاک از مولفه ‏های اصلی در دستیابی به سامانه ‏‏های کشاورزی پایدار بوده که شدت تحت تاثیر عملیات زراعی مانند خاکورزی قرار می ‏گیرد. را توان با استفاده پارامترهای فیزیکی، شیمیایی بیولوژیکی قالب الگوریتم‏ های مشخص کمّی کرد. نتیجه، بررسی وضعیت کیفی باروری مدیریتی مختلف زمین جهت استقرار مناسب برای تولید بهینه نظام‌های امری ضروری می‏ باشد. چارچوب ارزیابی مدیریت SMAF 1 عنوان ابزاری قدر...

agers may organise the collection of resources and their transportation back to the nest. One way is to partition the task into a number of sequential stages in which material is passed from one worker to another in a relay fashion. This relatively new concept is known as task partitioning. In this study, we focus on a particular form of task partitioning, bucket brigades, which we define as a ...

The human liver cell line HepaRG has been recognized as a promising source for in vitro testing of metabolism and toxicity of compounds. However, currently the hepatic differentiation of these cells relies on exposure to dimethylsulfoxide (DMSO), which, as a side effect, has a cytotoxic effect and represses an all-round hepatic functionality. The AMC-bioartificial liver (AMC-BAL) is a three-dim...

The myalogenous leukemia call line K-562 with a Ph'+ chromosome, derived from a patient with chronic myalo ganous leukemia in terminal blashic crisis, is not a bone marrow-derived lymphoblastic call line, because the cells neither produce immunoglobulins nor possess complement receptors. Since it has been suspected that blasts found in some patients with chronic myelogenous leukemia in bIas tic...

http://bmj.com/cgi/content/full/332/7541/562 Updated information and services can be found at: These include: References http://bmj.com/cgi/content/full/332/7541/562#BIBL This article cites 10 articles, 6 of which can be accessed free at: Rapid responses http://bmj.com/cgi/eletter-submit/332/7541/562 You can respond to this article at: http://bmj.com/cgi/content/full/332/7541/562#responses free...

Toxoplasmosis is caused by the intracellular protozoan Toxoplasma gondii. It is anopportunistic zoonosis in warm-blooded animals and humans, with a worldwide distribution. Toxoplasma gondii dense granule protein 16 (TgGRA16) can modulate some functions in host cells and is considered a significant virulent factor of the parasite. The present study reports sequence variation in TgGRA16 gene amon...