نتایج جستجو برای: Na/K Feldspar

تعداد نتایج: 2076  

2006
T. Mikouchi M. Miyamoto E. Koizumi J. Makishima G. McKay

Introduction: Nakhlites are augite-rich cumulate rocks with variable amounts of olivine and groundmass plus minor Fe, Ti oxides [e.g., 1]. Our previous studies revealed that nakhlites showed correlated petrography and mineralogy that could be explained by different locations (burial depths) in a common cooling cumulate pile [e.g., 2]. We so far analyzed six of the seven currently known nakhlite...

Journal: :Structure 2016
Fiona J Sorrell Marta Szklarz Kamal R Abdul Azeez Jon M Elkins Stefan Knapp

The highly diverse Numb-associated kinase (NAK) family has been linked to broad cellular functions including receptor-mediated endocytosis, Notch pathway modulation, osteoblast differentiation, and dendrite morphogenesis. Consequently, NAK kinases play a key role in a diverse range of diseases from Parkinson's and prostate cancer to HIV. Due to the plasticity of this kinase family, NAK kinases ...

Journal: :Neuron 2011
Wei-Kang Yang Yu-Huei Peng Hsun Li Hsiu-Chen Lin Yu-Ching Lin Tzu-Ting Lai Hsien Suo Chien-Hsiang Wang Wei-Hsiang Lin Chan-Yen Ou Xin Zhou Haiwei Pi Henry C. Chang Cheng-Ting Chien

VIDEO ABSTRACT During development, dendrites arborize in a field several hundred folds of their soma size, a process regulated by intrinsic transcription program and cell adhesion molecule (CAM)-mediated interaction. However, underlying cellular machineries that govern distal higher-order dendrite extension remain largely unknown. Here, we show that Nak, a clathrin adaptor-associated kinase, pr...

Journal: :Neoplasia 2008
Florence Lefranc Robert Kiss

PURPOSE To review the involvement of the ion transporter Na+/K+-ATPase (NaK) in the migration and proliferation of glioma cells. Preliminary studies indicate that NaK alpha1 subunits seem to be upregulated in a proportion of glioblastomas but not in normal brain tissues. DESIGN The present review focuses on (1) the natural resistance of migrating malignant glioma cells to apoptosis, (2) autop...

Journal: :The Journal of General Physiology 2007
Sergei Yu. Noskov Benoit Roux

Fundamental concepts governing ion selectivity in narrow pores are reviewed and the microscopic factors responsible for the lack of selectivity of the NaK channel, which is structurally similar to the K+-selective KcsA channel, are elucidated on the basis of all-atom molecular dynamics free energy simulations. The results on NaK are contrasted and compared with previous studies of the KcsA chan...

2015
Thu P. Huynh Sonali P. Barwe Seung J. Lee Ryan McSpadden Omar E. Franco Simon W. Hayward Robert Damoiseaux Stephen S. Grubbs Nicholas J. Petrelli Ayyappan K. Rajasekaran

Glucocorticoids are commonly used as palliative or chemotherapeutic clinical agents for treatment of a variety of cancers. Although steroid treatment is beneficial, the mechanisms by which steroids improve outcome in cancer patients are not well understood. Na,K-ATPase beta-subunit isoform 1 (NaK-β1) is a cell-cell adhesion molecule, and its expression is down-regulated in cancer cells undergoi...

Journal: :Current Biology 1996
Xiaobin Lu Xiaoning Wu Ana Plemenitas Haifeng Yu Earl T. Sawai Arie Abo B.Matija Peterlin

BACKGROUND The negative factor (Nef) of human and simian immunodeficiency viruses (HIV-1, HIV-2 and SIV) is required for high levels of viremia and progression to AIDS. Additionally, Nef leads to cellular activation, increased viral infectivity and decreased expression of CD4 on the cell surface. Previously, we and others demonstrated that Nef associates with a cellular serine kinase (NAK) acti...

Journal: :Chemical communications 2015
Sanling Liu Pei Lv Dong Li Xiaoqi Guo Bo Zhang Mu Yu Dandan Li Ying Xiong Longhua Zhang Changlin Tian

The fluorescent unnatural amino acid, (7-hydroxycoumarin-4-yl)ethylglycine (HC), was site-specifically incorporated at the Phe69 site, close to the entrance of the selectivity filter of the NaK channel. Decreased fluorescence lifetime and elevated time-resolved anisotropy of NaK-F69HC in buffers with high K(+)/Na(+) molar ratios indicated the K(+) preference at the entrance of the NaK channel, ...

Journal: :SADJ : journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging 2008
A R Le Roux N Lachman M Walker T Botha

INTRODUCTION Incorporating a feldspar chemical bond between alumina filler particles is expected to increase the wear-resistant and flexural strength properties. AIMS AND OBJECTIVES An investigation was carried out to evaluate the influence of the feldspar chemical bonding between alumina filler particles on wear and flexural strength of experimental alumina/feldspar dental composites. It was...

Journal: :Pamukkale üniversitesi ilahiyat fakültesi dergisi 2021

Bu makalede Osmanl? Devleti’nde din ve mezhep anlay???nda Nak?ibendiyye tarikat?n?n önemi incelenmi?tir. Konunun kapsaml? bir ?ekilde ortaya konulmas? için önce Osmanl?’n?n kurulu?u devresinde tasavvuf temelinde ?slam’?n etkisine i?aret edilmi?, sonra da tarikat? temel esaslar? hakk?nda bilgi verilmi?tir. Makalede Nak?ibendiyye’nin Osmanl?’ya ilk olarak ne zaman geldi?i ara?t?r?lm?? bu çerçeved...

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