نتایج جستجو برای: cr

تعداد نتایج: 45657  

Journal: :Pure and Applied Mathematics Quarterly 2022

A smooth, strongly $\mathbb{C}$-convex, real hypersurface $S$ in $\mathbb{CP}^n$ admits a projective dual CR structure addition to the standard structure. Given smooth function $u$ on $S$, we provide characterizations for when can be decomposed as sum of and function. Following work Lee pluriharmonic boundary values, characterization using differential forms. We further tangential vector fields...

Journal: :Free radical biology & medicine 2007
Isabelle Hininger Rachida Benaraba Mireille Osman Henri Faure Anne Marie Roussel Richard A Anderson

Several studies have demonstrated beneficial effects of supplemental trivalent Cr in subjects with reduced insulin sensitivity with no documented signs of toxicity. However, recent studies have questioned the safety of supplemental trivalent Cr complexes. The objective of this study was to evaluate the cytotoxic and genotoxic potential of the Cr(III) complexes (histidinate, picolinate, and chlo...

2012
Yoo Seob Shin Jung-Ho Sohn Joo-Young Kim Jae Hyun Lee Sang-Heon Cho Soo-Jong Hong Joo-Shil Lee Chein-Soo Hong Jung-Won Park

PURPOSE Cockroach (CR) is an important inhalant allergen and can induce allergic asthma. However, the mechanism by which CR induces airway allergic inflammation and the role of endotoxin in CR extract are not clearly understood in regards to the development of airway inflammation. In this study, we evaluated whether endotoxin is essential to the development of CR induced airway allergic inflamm...

Journal: :Frontiers in Neuroanatomy 2007
Yuri Gonchar Quanxin Wang Andreas Burkhalter

The majority of cortical interneurons use GABA (gamma amino butyric acid) as inhibitory neurotransmitter. GABAergic neurons are morphologically, connectionally, electrically and chemically heterogeneous. In rat cerebral cortex three distinct groups of GABAergic interneurons have been identified by the expression of parvalbumin (PV), calretinin (CR) and somatostatin (SOM). Recent studies in mous...

2014
Aaron P. Russell Lobna Ghobrial Craig R. Wright Séverine Lamon Erin L. Brown Michihiro Kon Matthew R. Skelton Rodney J. Snow

The present study aimed to investigate whether skeletal muscle from whole body creatine transporter (CrT; SLC6A8) knockout mice (CrT(-/y)) actually contained creatine (Cr) and if so, whether this Cr could result from an up regulation of muscle Cr biosynthesis. Gastrocnemius muscle from CrT(-/y) and wild type (CrT(+/y)) mice were analyzed for ATP, Cr, Cr phosphate (CrP), and total Cr (TCr) conte...

Journal: :Journal of environmental quality 2007
Ioannis Ipsilantis Mark S Coyne

Theories suggest that rapid microbial growth rates lead to quicker development of metal resistance. We tested these theories by adding hexavalent chromium [Cr(VI)] to soil, sowing Indian mustard (Brassica juncea), and comparing rhizosphere and bulk soil microbial community responses. Four weeks after the initial Cr(VI) application we measured Cr concentration, microbial biomass by fumigation ex...

2009
L. Qin

Introduction: Previous studies have shown that 54 Cr is heterogeneously distributed in Solar System materials, including chondrites, differentiated stony and iron meteorites [1]. Each meteorite group has its characteristic 54 Cr signature. Even though the 54 Cr anomalies are widely thought to be nucleosynthetic in origin, the nucleosynthetic process responsible for its production and the cause ...

پایان نامه :0 1379

زئولیتها و غربالهای مولکولی که در شرایط آنها کروم قرار گرفته است به دلیل دارا بودن فعالیت کاتالیزوری در ارتباط با اکسایش هیدروکربنها و الکلها در شرایط ملایم ، بسیار مورد توجه می باشند. زئولیتهای شامل کروم مانند آنالیسم، مگدایت ، zsm-11 به روش هیدروترمال تهیه شده اند . زئولیتهای سنتز شده به وسیله sem,tga, ftir, xrd شناسایی شده اند. طیف xrd ترکیبات کاملا" مشابه با نوع آلومینیوم دار آنها می باشد. ...

2013
M. K. MICHAILIDES A. G. TEKERLEKOPOULOU C. S. AKRATOS

Scientific interest on chromium removal from water and wastewater has escalated recently. Chromium compounds exist in the environment naturally but are mostly found due to anthropogenic activities (tanning, paint, cement industries, etc.). Hexavalent chromium [Cr(VI)] is of major environmental importance because it is one of the most stable chromium forms found in the environment. It is soluble...

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