نتایج جستجو برای: روش pvd

تعداد نتایج: 371235  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2013
Mitchel R Stacy Wunan Zhou Albert J Sinusas

Peripheral vascular disease (PVD) is an atherosclerotic disease affecting the lower extremities, resulting in skeletal muscle ischemia, intermittent claudication, and, in more severe stages of disease, limb amputation and death. The evaluation of therapy in this patient population can be challenging, as the standard clinical indices are insensitive to assessment of regional alterations in skele...

Journal: :Neuron 2013
Cody J. Smith Timothy O’Brien Marios Chatzigeorgiou W. Clay Spencer Elana Feingold-Link Steven J. Husson Sayaka Hori Shohei Mitani Alexander Gottschalk William R. Schafer David M. Miller

Sensory neurons adopt distinct morphologies and functional modalities to mediate responses to specific stimuli. Transcription factors and their downstream effectors orchestrate this outcome but are incompletely defined. Here, we show that different classes of mechanosensory neurons in C. elegans are distinguished by the combined action of the transcription factors MEC-3, AHR-1, and ZAG-1. Low l...

Journal: :بینا 0
مصطفی سلطان سنجری m soltan sanjari تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات خلیل قاسمی فلاورجانی kh ghasemi falavarjani تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات محمدمهدی پرورش mm parvaresh تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مهدی مدرس زاده m modarreszadeh تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مسعود ناصری پور m naseripour تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مسیح هاشمی m hashemi تهران- خیابان ستارخان- بیمارستان حضرت رسول اکرم (ص)- مرکزتحقیقات مرضیه نجومی

purpose: to describe the association between optic disc traction and non-arteritic anterior ischemic optic neuropathy (naion). methods: eighty three eyes of 83 patients with naion were evaluated by optical coherence tomography (oct) for detecting vitreous adhesion to the optic nerve head with separation from adjacent retina (partial posterior vitreous detachment). those who were negative for su...

Journal: :Circulation 1980

Journal: :Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde 2013
Francesco Bandello Carlo La Spina Lorenzo Iuliano Giovanni Fogliato Maurizio Battaglia Parodi

The vitreous is involved in multiple diseases when an incomplete posterior vitreous detachment (PVD) occurs. An incomplete PVD can lead to several pathological conditions. Such visually threatening conditions are traditionally of exclusive surgical interest. In contrast, pharmacological vitreolysis is the effort to reduce or eliminate the pathogenetic role of the vitreous solely by means of dru...

Journal: :Thin Solid Films 2022

The 316 L Stainless Steel is widely used as structural material in marine applications and subject to localized pitting corrosion chlorinated environments. main aim of the present work development coatings that are alternately deposited by a combination Physical Vapor Deposition (PVD) Atomic Layer (ALD) techniques. Three different architectures PVD/ALD, ALD/PVD PVD/ALD/PVD were studied. layer A...

لایه‌های نازک ZnS بر روی زیرلایه‌های شیشه‌ای در دماهای مختلف زیرلایه به دو روش تبخیر در خلأ (PVD) و اسپری پایرولیزیز لایه‌نشانی شدند و در دمای °C 500 درهوا بازپخت گردیدند. تغییر در خواص اپتیکی و ساختاری لایه‌ها توسط طیف پراش اشعة ایکس و طیف‌سنجی UV/VIS بررسی شد و همچنین به‌کمک داده‌های طیف عبوری، گاف انرژی محاسبه گردید. نتایج آزمایش‌ها حاکی از آن است که همة لایه‌ها دارای ساختار مکعبی هستند. تبل...

Journal: :Cell 2013
Xintong Dong Oliver W. Liu Audrey S. Howell Kang Shen

Robust dendrite morphogenesis is a critical step in the development of reproducible neural circuits. However, little is known about the extracellular cues that pattern complex dendrite morphologies. In the model nematode Caenorhabditis elegans, the sensory neuron PVD establishes stereotypical, highly branched dendrite morphology. Here, we report the identification of a tripartite ligand-recepto...

2012
J. K. Mandal Debashis Das

In a color image every pixel value composed of red, green and blue component and each of which ranges from 0 to 255 in case of 8-bit representation. In this paper, we have used pixel value differencing (PVD) method for secret data embedding in each of the component of a pixel in a color image. But when we use pixel-value differencing (PVD) method as image steganographic scheme, the pixel values...

Journal: :JAMA 2009
Hussein Hollands Davin Johnson Anya C Brox David Almeida David L Simel Sanjay Sharma

CONTEXT Acute onset of monocular floaters and/or flashes represents a common presentation to primary care physicians, and the most likely diagnosis is posterior vitreous detachment (PVD). A significant proportion of patients with acute PVD develop an associated retinal tear that can lead to retinal detachment and permanent vision loss if left untreated. OBJECTIVE To quantify the association b...

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