نتایج جستجو برای: 25 cm with disc

تعداد نتایج: 9327966  

Journal: :Investigative ophthalmology & visual science 2005
Thomas K Stepinac Stephane R Chamot Elisabeth Rungger-Brändle Pierre Ferrez Jean-Luc Munoz Hubert van den Bergh Claude E Riva Constantin J Pournaras Georges A Wagnières

PURPOSE The phosphorescence lifetime of certain metalloporphyrins dissolved in a physiological medium provides an optical signature for local oxygen concentration (pO(2)). This effect is used for measuring physiological pO(2) levels in various tissues. However, the phosphorescence quenching of certain metalloporphyrin triplet states by oxygen also creates singlet oxygen, which is highly reactiv...

2011
Sandra Lindstedt Malin Malmsjö Johan Hansson Joanna Hlebowicz Richard Ingemansson

BACKGROUND Higher closure rates of the open abdomen have been reported with negative pressure wound therapy (NPWT) than with other wound management techniques. However, the method has occasionally been associated with increased development of fistulae. We have previously shown that NPWT induces ischemia in the underlying small intestines close to the vacuum source, and that a protective disc pl...

Journal: :journal of lasers in medical sciences 0
liu ying nanfang hospital, southern medical university, colleg of stomatology, southern medical university jie gao department of stomatology, nanfang hospital, colleg of stomatology, southern medical university,510515 guangzhou, p.r. china. yan gao center of oral implantology, guangdong provincial stomatological hospital, southern medical university,510280 guangzhou, p.r. china. shuaimei xu department of stomatology, nanfang hospital, colleg of stomatology, southern medical university,510515 guangzhou, p.r. china. xueling zhan department of stomatology, nanfang hospital, colleg of stomatology, southern medical university,510515 guangzhou, p.r. china. buling wu department of stomatology, nanfang hospital, colleg of stomatology, southern medical university,510515 guangzhou, p.r. china.

introduction: to investigate the ultrastructural changes of dentin irradiated with 980-nm diode laser under different parameters and to observe the morphological alterations of odontoblasts and pulp tissue to determine the safety parameters of 980-nm diode laser in the treatment of dentin hypersensitivity (dh). methods: twenty extracted human third molars were selected to prepare dentin discs. ...

Journal: :journal of agricultural science and technology 2010
d. d. yousuf

on-farm experiments were designed to investigate the response of maize establishment and grain yield to variation in tillage systems. the tillage treatments included arara ploughing followed by zig-zag harrowing and arara ridging (t1); emcot ploughing fol-lowed by zig-zag harrowing and emcot ridging (t2); mouldboard ploughing followed by disc harrowing and mouldboard ridging (t3); disc ploughin...

آشتیانی, فاطمه پروین , سعادت مصطفوی, سید رضا , صمیمی, کاوه , فاتح, سهیل ,

Background: Recent studies have indicated the relation of vertebral endplate lesions (Modic changes) to low back pain (LBP). The aim of this study was to investigate the Modic changes in magnetic resonance imaging (MRI) of patients with low back pain, and its correlation with age, sex, type of changes, number of involved segments and location of changes. Additionally, association of degenerativ...

2002
A. De Rosa

The ionized disc reflection model of Ross & Fabian is applied to a sample of five Seyfert 1 galaxies observed by BeppoSAX. Good fits were obtained for all the objects in the sample. NGC 4051 and Mkn 335 (usually classified as NLSy 1s) show evidence of a highly ionized accretion disc (ξ ∼ 350 erg cm s and ξ ∼ 800 erg cm s). While NGC 3783 seems to be a “pure Sy 1” characterized by a highly ioniz...

Journal: :Circulation 1973
M L Johnson J H Holmes B C Paton

Disc excursion and opening and closing velocities of prosthetic disc valves can be measured accurately by diagnostic echocardiography. The ultrasound beam is projected along the longitudinal axis of the valve and the echoes arising from the struts, disc, and suture ring are displayed on the oscilloscope. Twenty-four patients with normally functioning mitral Beall valves of various sizes and thr...

2007
Casey K. Lee

BACKGROUND Prosthetic subsidence is an adverse event of disc arthroplasty with a total disc prosthesis. Factors affecting prosthetic subsidence are (1) the size of the prosthetic endplate (footprint), (2) amount of load applied to the spine, and (3) compressive strength of the vertebral bone. The size of the prosthetic endplate has been addressed adequately in the development of the current gen...

Journal: :Spine 1989
D Colombini E Occhipinti A Grieco M Faccini

In order to standardize the results of different biomechanical studies concerning stresses on lumbar discs, it may be useful to estimate the disc dimensions of the examined subjects and to refer the stress values to a unit surface area (square centimeter). The association between anthropometric parameters and discal areas at the L3-L4, L4-L5 and L5-S1 levels, examined by computed axial tomograp...

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