نتایج جستجو برای: fahliyan formation

تعداد نتایج: 527345  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...

Farahnaz Soleimani Farrokh Gharib Hossein Aghaie

The hydrolysis of cadmium nitrate was studied spectrophotometrically at different ionic strengthsof sodium perchlorate in a wide pH range, 1-12, and at 25 C. Least squares calculations areconsistent with the formation of M(OH)+, M(OH)2, M(OH)3- and M(OH)42- species, which M isCd2+. The dependency on ionic strength in the background electrolyte solutions was taken intoaccount by using a Debye-Hu...

Journal: :Cell 2009
Gokul Kesavan Fredrik Wolfhagen Sand Thomas Uwe Greiner Jenny Kristina Johansson Sune Kobberup Xunwei Wu Cord Brakebusch Henrik Semb

Understanding how cells polarize and coordinate tubulogenesis during organ formation is a central question in biology. Tubulogenesis often coincides with cell-lineage specification during organ development. Hence, an elementary question is whether these two processes are independently controlled, or whether proper cell specification depends on formation of tubes. To address these fundamental qu...

Journal: :Current opinion in plant biology 1999
A Hudson

Formation of leaves and floral organs involves down-regulation of meristem-specific homeobox genes, and de novo expression of genes for organ identity, growth and patterning. Genes required for all these aspects of organ formation have been identified. The challenge now is to establish how they interact to direct organogenesis.

2011
F. Manni K. G. Lagoudakis T. C. H. Liew R. André B. Deveaud-Plédran

2011
T. Coenye K. De Prijck H. Nailis

Biofilm formation is often considered to be the underlying reason why treatment with an antimicrobial agent fails and as an estimated 65-80% of all infections is thought to be biofilm-related, this presents a serious challenge. Considerable attention has been devoted to the development of modified materials that prevent (or at least drastically reduce) microbial biofilm formation. In this revie...

Journal: :The Japanese journal of physiology 1966
Y Hayashi N Yoshii

Recently evidence has accumulated that there are various interactions between the different levels of the central reticular core of the brain stem. (DELL, BONVALLET and HUGELIN 1961 ; MORUZZI 1964). The present study was initiated to know how the mesencephalic reticular formation (MRF) acts to regulate activity of the pontine reticular formation (PRF). This MRF-originated, descending effect con...

Journal: :journal of physical & theoretical chemistry 2008
k. zare h. aghaie m. mirzaie m.r. zardoost f. khazali

using uv-vis spectrophotometric method the interaction of water soluble phthalocyanine, cobalt(ιι) 4,4′,4′′,4′′′- tetrasulfophthalocyanine(cotspc), with bovine serum albumin (bsa) to determine the formation constant and related thermodynamic functions. the measurements were considered in 1mm sodium phosphate buffer, ph 7.0 and at 5 different temperatures 20, 25, 30, 35 and 40ºc. the results sho...

Journal: :journal of physical & theoretical chemistry 2005
farrokh gharib ali shamel farbod lotfi

the dependence on ionic strength of protonation of glycine and its complexation with dioxouranium (vi) is reported in sodium perchlorate and sodium chloride solutions as background salts. the measurements have been performed at 25±0.1°c and various ionic strengths in the range 0.1 to 1.0 mol , using a combination of potentiometric and spectrophotometric techniques. the overall analysis  of the ...

Journal: :iranian biomedical journal 0
مرضیه حقی شریفیا تقوی marzieh hagi-sharifia taghavi جمشید داوودی jamshid davoodi منوچهر میرشاهی manouchehr mirshahi

the p53 protein function is essential for the maintenance of the nontumorigenic cell phenotype. pancreatic tumor cells show a very high frequency of p53 mutation. to determine if restoration of wild type p53 function can be used to eliminate the tumorigenic phenotype in these cells, pancreatic tumor cell lines, panc-1 and htb80, differing in p53 status were stably transfected with exogenous wil...

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