نتایج جستجو برای: fracture depth

تعداد نتایج: 254397  

Journal: :Science 2008
Dylan Chivian Eoin L Brodie Eric J Alm David E Culley Paramvir S Dehal Todd Z DeSantis Thomas M Gihring Alla Lapidus Li-Hung Lin Stephen R Lowry Duane P Moser Paul M Richardson Gordon Southam Greg Wanger Lisa M Pratt Gary L Andersen Terry C Hazen Fred J Brockman Adam P Arkin Tullis C Onstott

DNA from low-biodiversity fracture water collected at 2.8-kilometer depth in a South African gold mine was sequenced and assembled into a single, complete genome. This bacterium, Candidatus Desulforudis audaxviator, composes >99.9% of the microorganisms inhabiting the fluid phase of this particular fracture. Its genome indicates a motile, sporulating, sulfate-reducing, chemoautotrophic thermoph...

Journal: :Age and ageing 2003
Ahmed H Abdelhafiz Christopher A Austin

Visual impairment, although not routinely assessed, is an important risk factor for falls and hip fracture in older people. Impaired vision is highly prevalent and commonly unreported in the elderly population particularly in women and those living in nursing homes. Measurement of visual functions such as visual acuity, contrast sensitivity and depth perception may identify older people at risk...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1390

abstract the variables affecting the nature of reading comprehension can be classified into two general categories: reader’s variables, and text variables (alderson, 2000). despite the wave of research on vocabulary knowledge as reader’s variable, the role of this knowledge in c-test as a text-dependent test and its interaction with lexical cohesion of the test as a text feature has remained a...

Journal: :journal of dentistry, tehran university of medical sciences 0
e. jalalian associate professor, department of fix prostodontics, dental branch , azad university ,tehran, iran b. atashkar r. rostami

objective: one of the major problems of all ceramic restorations is their probable fracture against the occlusal force. the aim of the present in-vitro study is was to compare the effect of two marginal designs (chamfer & shoulder) on the fracture resistance of zirconia copings, cercon (cad/cam). materials and methods : this in vitro study was done with single blind experimental technique. one ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1392

for any educational program to be successful, many factors work hand in hand. based on pervious efl studies, teachers and learners are the keys to gain achievement. granted the fact that explicit and implicit practice plays a key role in education, knowledge of it can help teachers facilitate students’ vocabulary learning. this study investigated to determine the contribution of explicit and i...

Journal: :IOP Conference Series: Earth and Environmental Science 2019

2000
Carole D. Johnson

An integrated suite of geophysical methods was used to characterize the hydrogeology of a fractured-rock aquifer to identify contamination or pathways for contaminant migration near a former landfill at the University of Connecticut, Storrs, Connecticut. Surface-geophysical methods were used to identify the dominant direction of fracture orientation and to locate potential leachate plumes. Two ...

2017
Ningchang Wang Feng Jiang Xipeng Xu Xizhao Lu

Single-crystal sapphire (α-Al2O3) is a hard and brittle material. Due to its highly crystalline nature, the fracture behavior of sapphire is strongly related to its crystal structure, and understanding the effects of crystal structure on the crack propagation of sapphire is essential for the successful application of this important material (e.g., as wafers in the electronics industry). In the ...

2007
Sandhya Pisharody

The preferred method of assessing the risk of an osteoporosis related fracture is currently a measure of bone mineral density (BMD) by dual energy X-ray absorptiometry (DXA). However, other factors contribute to the overall risk of fracture, including anatomical geometry and the spatial distribution of bone. Finite element analysis can be performed in both two and three dimensions, and predicts...

2016
Yoichi Sugiyama Kiyohito Naito Hiroyuki Obata Mayuko Kinoshita Kentaro Aritomi Kazuo Kaneko Osamu Obayashi

INTRODUCTION Distal radius fracture (DRF) accompanied by intra-articular volar displaced fragment is difficult to reduce. This volar fragment remains when treated with a simple buttress effect alone, and V-shaped deformity may remain on the articular surface. We attempted to improve dorsal rotational deviation of volar fragment by osteosynthesis applying the condylar stabilizing technique. We r...

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