نتایج جستجو برای: head docking device

تعداد نتایج: 849401  

2014
Yi Li Stephen Hsueh-Jeng Lu Ching-Ju Tsai Christopher Bohm Seema Qamar Roger B. Dodd William Meadows Amy Jeon Adam McLeod Fusheng Chen Muriel Arimon Oksana Berezovska Bradley T. Hyman Taisuke Tomita Takeshi Iwatsubo Christopher M. Johnson Lindsay A. Farrer Gerold Schmitt-Ulms Paul E. Fraser Peter H. St George-Hyslop

Presenilin-mediated endoproteolysis of transmembrane proteins plays a key role in physiological signaling and in the pathogenesis of Alzheimer disease and some cancers. Numerous inhibitors have been found via library screens, but their structural mechanisms remain unknown. We used several biophysical techniques to investigate the structure of human presenilin complexes and the effects of peptid...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Zhechun Zhang Yonathan Goldtzvik D Thirumalai

Kinesin walks processively on microtubules (MTs) in an asymmetric hand-over-hand manner consuming one ATP molecule per 16-nm step. The individual contributions due to docking of the approximately 13-residue neck linker to the leading head (deemed to be the power stroke) and diffusion of the trailing head (TH) that contributes in propelling the motor by 16 nm have not been quantified. We use mol...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Yee-Hung M Chan Peter Lenz Steven G Boxer

Membrane-membrane recognition and binding are crucial in many biological processes. We report an approach to studying the dynamics of such reactions by using DNA-tethered vesicles as a general scaffold for displaying membrane components. This system was used to characterize the docking reaction between two populations of tethered vesicles that display complementary DNA. Deposition of vesicles o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1389

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

2014
Takuya Maruo

An ideal head-immobilization method provides a high level of accuracy and reproducibility in the immobilization. Various head-immobilization methods for radiotherapy have been published and are excellent in terms of accuracy; however, these methods are complicated to use and labor intensive. This study describes 2 new bite-block-type head-immobilization devices designed for greater stability an...

Journal: :the journal of tehran university heart center 0
hojat mortezaeian rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. keyhan sayadpour-zanjani children’s medical center (pediatrics center of excellence), tehran university of medical sciences, tehran, iran. elaheh malakan-rad children’s medical center (pediatrics center of excellence), tehran university of medical sciences, tehran, iran.

background: despite several reports regarding the use of the occlutech figulla® flex septal occluder (offso) in adults, there are few reports on its use in children. we sought to study the result of the transcatheter closure of atrial septal defect (asd) using the offso in children ≤ 12 years. methods: w e enrolled 45 consecutive patients, ranging from 2.5 to 12 years of age, in two large pedia...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1372

این پایان نامه به بررسی و مقایسه دو موضوع مطابقه میان فعل و فاعل (از نظر شخص و مشار) و هسته عبارت در دو زبان انگلیسی و آذربایجانی می پردازد. اول رابطه دستوری مطابقه مورد بررسی قرار می گیرد. مطابقه به این معناست که فعل مفرد به همراه فاعل مفرد و فعل جمع به همراه فاعل جمع می آید. در انگلیسی تمام افعال، بجز فعل بودن (to be) از نظر شمار با فاعلشان فقط در سوم شخص مفرد و در زمان حال مطابقت نشان میدهند...

Journal: :The journal of contemporary dental practice 2012
Abdul Rahim Khan R N G Rajesh M R Dinesh N Sanjay K S Girish Karthik Venkataraghavan

UNLABELLED Lateral cephalometric radiographs have become virtually indispensable to orthodontists in the treatment of patients. They are important in orthodontic growth analysis, diagnosis, treatment planning, monitoring of therapy and evaluation of final treatment outcome. AIM The purpose of this study was to evaluate and compare the maximum reproducibility with minimum variation of natural ...

Journal: :Trans. Edutainment 2009
Olga Sourina Jaume Torres Jing Wang

Visual haptic-based biomolecular docking systems could be used for both research and e-learning in research intensive disciplines such as biology, physical chemistry, molecular medicine, biophysics, structural biology, bioinformatics, etc. The assembly of molecules in a three-dimensional space or molecular docking is used for rational drug design where a ligand docks onto a receptor. The comput...

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