نتایج جستجو برای: sih

تعداد نتایج: 639  

Journal: :Neurosurgery 2011
Maryam Rahman Sharatchandra S Bidari Ron G Quisling William A Friedman

Intracranial hypotension is not an uncommon diagnosis after lumbar puncture or neurosurgery. However, spontaneous intracranial hypotension (SIH) is a poorly understood entity that can present with a wide variety of symptoms/signs ranging from headache to coma. SIH may result from an occult spinal cerebrospinal fluid (CSF) leak. Alternatively, because a CSF leak is not always found, some posit t...

Journal: :JNMA; journal of the Nepal Medical Association 2013
Jing Zhang Yan Wang Jing Feng Xin Sun

Chronic obstructive pulmonary disease is a leading cause of morbidity and mortality worldwide. Sleep-induced hypoxemia is defined as "an SpO2 (oxyhemoglobin saturation) during sleep of < 90% for more than five minutes with a nadir of at least 85%" or "> 30% of total sleep time with an SpO2 of < 90%" in subject with a baseline awake SpO2 of ≥ 90%. Patients with moderate or severe COPD run a high...

Journal: :Ghurnita 2023

Tresna berarti rasa cinta atau sayang, Sih yang bermakna lebih, dan Rupaka kedua orang tua. merupakan sebuah konsep penggambaran tentang kasih sayang tulus dari tua terhadap anaknya. Memberikan tiada henti, memberikan tuntunan kepada anaknya untuk bekal menjadi anak suputra. Konsep tersebut di implementasikan karya Tabuh Kreasi dengan menggunakan gamelan Semar Pegulingan sebagai Saih Pitu, alas...

2016
J. B. Harp G. D. Yancopoulos J. Gromada

Hyperglycaemia is commonly observed on admission and during hospitalization for medical illness, traumatic injury, burn and surgical intervention. This transient hyperglycaemia is referred to as stress-induced hyperglycaemia (SIH) and frequently occurs in individuals without a history of diabetes. SIH has many of the same underlying hormonal disturbances as diabetes mellitus, specifically absol...

2013
CHENGZHI DENG WEI TIAN SAIFENG HU YAN LI

Under the linear approximation model for error diffusion halftoning, a shearlet-based inverse halftoning (SIH) algorithm is proposed. The SIH algorithm performs inverse halftoning by first inverting the modelspecified convolution operator and then reducing the residual color noise using scalar shearlet-domain thresholding. The optimal thresholds are derived by using the maximum a posteriori rul...

2001
WILLIAM A. GODDARD Arthur Amos Noyes Michael J. S. Dewar

We report herein, a series of ab initio calculations on various SiH, and Si,H, species using generalized valence bond and configuration interactions methods. These results allow systematic estimation of the heats of formation and the enthalpies of reactions for these species. For SiH, compounds, the calculated and experimental energetics are in excellent agreement; we obtain D,,, (H,SiH) = 91.6...

Journal: :AJNR. American journal of neuroradiology 2009
A Watanabe T Horikoshi M Uchida H Koizumi T Yagishita H Kinouchi

BACKGROUND AND PURPOSE Spontaneous intracranial hypotension (SIH) presents with orthostatic headache, and the diagnosis is made on the basis of low CSF pressure and brain MR imaging findings characteristic of the disorder. However, a broad spectrum of symptoms and MR imaging findings of SIH is recognized, and some cases have no typical MR imaging abnormalities. SIH is believed to be caused by C...

Journal: :Inorganic chemistry 2007
Karine Valliant-Saunders Erica Gunn G Robert Shelton David A Hrovat Weston Thatcher Borden James M Mayer

In the presence of an excess of pyridine ligand L, osmium tetroxide oxidizes tertiary silanes (Et(3)SiH, (i)Pr(3)SiH, Ph(3)SiH, or PhMe(2)SiH) to the corresponding silanols. With L = 4-tert-butylpyridine ((t)Bupy), OsO(4)((t)Bupy) oxidizes Et(3)SiH and PhMe(2)SiH to yield 100 +/- 2% of silanol and the structurally characterized osmium(VI) mu-oxo dimer [OsO(2)((t)Bupy)(2)](2)(mu-O)(2) (1a). With...

Journal: :AJNR. American journal of neuroradiology 2013
P G Kranz S S Stinnett K T Huang L Gray

BACKGROUND AND PURPOSE Spinal meningeal diverticula have been implicated in the pathogenesis of spontaneous intracranial hypotension and have been proposed as both diagnostic features of and therapeutic targets for the condition. We compared the prevalence and myelographic appearance of spinal diverticula in patients with SIH and healthy controls. MATERIALS AND METHODS Patients satisfying the...

Journal: :Journal of the Chinese Medical Association : JCMA 2008
Hsin-Hung Chen Chun-I Huang Shu-Shya Hseu Jiing-Feng Lirng

Patients with both spontaneous intracranial hypotension (SIH) and subdural hematomas (SDH) are frequently undiagnosed. SIH may recur very often over a short interval or result in disastrous consequences if only the SDH is dealt with. We report a young adult with severe posterior nuchal pain; brain computed tomography showed bilateral SDH. He was discharged smoothly without any neurologic defici...

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