keyword
MENU ▼
Read by QxMD icon Read
search

Cvt

keyword
https://www.readbyqxmd.com/read/28429019/facile-syntheses-of-pure-uranium-halides-ucl4-ubr4-and-ui4
#1
Stefan S Rudel, Florian Kraus
Herein we describe convenient lab scale syntheses of several uranium(iv) halides of high purity by reaction of AlX3 (X = Cl, Br and I) with UO2, which is readily available by reduction of uranyl salts like UO2(NO3)2·6H2O. UCl4, UBr4, and UI4 are obtained in the form of aggregates of large single crystals. Their identities and purity were checked by powder X-ray diffraction, IR spectroscopy and elemental analysis. The syntheses introduced here avoid the need for pure metallic uranium and are based on more readily available starting materials, UO2, which does not even have to be pure, and the respective aluminium halide...
April 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28414658/septic-cerebral-venosinus-thrombosis-secondary-to-an-odontogenic-infection
#2
Hongvan Le, Shane Prejean, Madeleine Heck
BACKGROUND: Cerebral venosinus thrombosis (CVT); is an uncommon, potentially fatal disease that is more common in young adults and children. Thrombophilia, elevated estrogenic states, and infections are the most common risk factors in patients who develop CVT. CASE: A 69-year-old man with a right-sided odontogenic infection presented with fever, headache, opthalmoplegia, and periorbital swelling. Imaging revealed evidence of meningitis and thrombosis of bilateral ophthalmic veins, the cavernous sinus, right internal jugular vein, and sigmoid sinus...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28392913/low-molecular-weight-heparin-versus-unfractionated-heparin-in-the-management-of-cerebral-venous-thrombosis-a-systematic-review-and-meta-analysis
#3
REVIEW
Anjum Qureshi, Andrea Perera
INTRODUCTION: There are two main choices of anti-coagulation in cerebral venous thrombosis: Unfractionated heparin versus low molecular weight heparin. A consensus is yet to be reached regarding which agent is optimal. Therefore the aim of this systematic review and meta-analysis was to identify which agent is most effective in treating CVT. METHODS: Databases Pubmed (MEDLINE), Google Scholar and hand-picked references from papers of interest were reviewed. Studies comparing the use of low molecular weight heparin and unfractionated heparin in adult patients with a confirmed diagnosis of cerebral vein thrombosis were selected...
May 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28387630/risk-factors-governing-the-development-of-cerebral-vein-and-dural-sinus-thrombosis-after-craniotomy-in-patients-with-intracranial-tumors
#4
Florian Gessler, Markus Bruder, Stephan Duetzmann, Stephanie Tritt, Joshua D Bernstock, Volker Seifert, Christian Senft
OBJECTIVE Neurosurgical intervention may increase the risk of developing cerebral vein and dural sinus thrombosis (CVT). The clinical management of CVT in postoperative patients remains unclear. This retrospective study explores the disease occurrence, associated risk factors, and outcomes in patients with tumors who developed CVT after craniotomy. METHODS A retrospective analysis and review of patient records in those who had undergone cranial tumor removal within the authors' neurosurgical department was performed...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28347616/the-overdrive-mode-in-the-complete-vocal-technique-a-preliminary-study
#5
Johan Sundberg, Maddalena Bitelli, Annika Holmberg, Ville Laaksonen
"Complete Vocal Technique," or CVT, is an internationally widespread method for teaching voice. It classifies voicing into four types, referred to as "vocal modes," one of which is called "Overdrive." The physiological correlates of these types are unclear. This study presents an attempt to analyze its voice source and formant frequency characteristics. A male and a female expert of CVT sang a set of "Overdrive" and falsetto tones on the syllable /pᴂ/. The voice source could be analyzed by inverse filtering in the case of the male subject...
March 24, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28330536/-cerebral-venous-thrombosis-misinterpreted-as-migraine
#6
Omar A Karim, Adis Dizdarevic, Mohammad Motawea
A 23-year-old woman with known tension-type headache and in treatment with oral contraceptives was hospitalized with headache, nausea and vomiting during two weeks. Prior to hospitalization the symptoms had been interpreted as migraine. Blood samples including D-dimer were normal. A computed tomography showed cerebral venous thrombosis (CVT), so the patient was treated with anticoagulation drugs and her symptoms remitted slowly. CVT is a dangerous condition, and the symptoms can have a fluctuating course which can mask the diagnosis...
March 13, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28295142/creation-of-an-interprofessional-teledementia-clinic-for-rural-veterans-preliminary-data
#7
Becky B Powers, Marcia C Homer, Natalia Morone, Natali Edmonds, Michelle I Rossi
The teledementia clinic is a new model of care that expands the reach of specialized geriatric and dementia care using clinical video telehealth (CVT) to rural veterans, who frequently lack access to specialty care. The clinic is a Veterans Affairs (VA) Geriatric Research, Education, and Clinical Center clinical demonstration project. It is located in the Pittsburgh VA Healthcare System tertiary referral hospital and serves veterans in affiliated rural community-based outpatient clinics (CBOCs). Rural CBOC primary care providers refer clinic patients, or referral is according to previous cognitive impairment diagnosis in a VAPHS geriatric clinic...
March 10, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28262755/clinical-characteristics-and-prognosis-of-cerebral-venous-thrombosis-in-chinese-women-during-pregnancy-and-puerperium
#8
Zhu-Wei Liang, Wan-Li Gao, Li-Min Feng
Due to the specific physiology associated with pregnancy and puerperium, cerebral venous sinus thrombosis (CVT) may manifest different characteristics. This study aimed to identify the clinical manifestations and prognosis of pregnancy-associated CVT. A total of 43 pregnancy-associated CVT patients were enrolled. We analysed the clinical presentations of the disease and performed a multivariate logistic regression analysis to determine which variables were associated with prognosis. Our descriptive results showed the following: 1) the incidence was 202 per 100,000 deliveries, and the mortality rate was 11...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28262673/formation-mechanisms-of-fe3-xsnxo4-by-a-chemical-vapor-transport-cvt-process
#9
Zijian Su, Yuanbo Zhang, Bingbing Liu, Yingming Chen, Guanghui Li, Tao Jiang
Our former study reported that Fe-Sn spinel (Fe3-xSnxO4) was easily formed when SnO2 and Fe3O4 were roasted under CO-CO2 atmosphere at 900-1100 °C. However, the formation procedure is still unclear and there is a lack of theoretical research on the formation mechanism of the Fe-Sn spinel. In this work, the reaction mechanisms between SnO2 and Fe3O4 under CO-CO2 atmosphere were determined using XRD, VSM, SEM-EDS, XPS, etc. The results indicated that the formation of Fe3-xSnxO4 could be divided into four steps: reduction of SnO2 to solid phase SnO, volatilization of gaseous SnO, adsorption of gaseous SnO on the surface of Fe3O4, and redox reaction between SnO and Fe3O4...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28228636/progressive-ischemic-stroke-due-to-thyroid-storm-associated-cerebral-venous-thrombosis
#10
Natsumi Tanabe, Eiji Hiraoka, Masataka Hoshino, Gautam A Deshpande, Kana Sawada, Yasuhiro Norisue, Jumpei Tsukuda, Toshihiko Suzuki
BACKGROUND Cerebral venous thrombosis (CVT) is a rare but fatal complication of hyperthyroidism that is induced by the hypercoagulable state of thyrotoxicosis. Although it is frequently difficult to diagnose CVT promptly, it is important to consider it in the differential diagnosis when a hyperthyroid patient presents with atypical neurologic symptoms. CASE REPORT A 49-year-old Japanese female with unremarkable medical history came in with thyroid storm and multiple progressive ischemic stroke identified at another hospital...
February 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28228575/risk-of-pulmonary-embolism-after-cerebral-venous-thrombosis
#11
Ava L Liberman, Alexander E Merkler, Gino Gialdini, Steven R Messé, Michael P Lerario, Santosh B Murthy, Hooman Kamel, Babak B Navi
BACKGROUND AND PURPOSE: Cerebral vein thrombosis (CVT) is a type of venous thromboembolism. Whether the risk of pulmonary embolism (PE) after CVT is similar to the risk after deep venous thrombosis (DVT) is unknown. METHODS: We performed a retrospective cohort study using administrative data from all emergency department visits and hospitalizations in California, New York, and Florida from 2005 to 2013. We identified patients with CVT or DVT and the outcome of PE using previously validated International Classification of Diseases, Ninth Revision, Clinical Modification codes...
March 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28220992/two-dimensional-semiconductors-grown-by-chemical-vapor-transport
#12
Dake Hu, Guanchen Xu, Lei Xing, Xingxu Yan, Jingyi Wang, Jingying Zheng, Zhixing Lu, Peng Wang, Xiaoqing Pan, Liying Jiao
Developing controlled approaches for synthesizing high-quality two-dimensional (2D) semiconductors is essential for their practical applications in novel electronics. The application of chemical vapor transport (CVT), an old single-crystal growth technique, has been extended from growing 3D crystals to synthesizing 2D atomic layers by tuning the growth kinetics. Both single crystalline individual flakes and continuous films of 1 L MoS2 were successfully obtained with CVT approach at low growth temperatures of 300-600 °C...
February 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28220976/evaluation-of-a-new-hemoglobin-a1c-analyzer-for-point-of-care-testing
#13
Rui Zhou, Wei Wang, Zhi-Xin Song, Qing Tong, Qing-Tao Wang
BACKGROUND: There has been an increasing desire for the use of point-of-care testing (POCT) by both primary care clinicians and patients. This study aimed to evaluate the performance of a new POCT analyzer for hemoglobin A1c (HbA1c) testing. METHODS: We assessed the accuracy, precision, and linearity of the POCT HbA1c analyzer (A1C EZ 2.0) with the Tosoh G8 Analyzer as comparative instrument, following the Clinical and Laboratory Standards Institute (CLSI) protocols...
February 21, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28208950/cerebral-venous-thrombosis-in-pregnancy-a-poignant-allegory-of-an-unusual-case
#14
Sheeba Marwah, Gaikwad Harsha Shailesh, Sumedha Gupta, Manjula Sharma, Pratima Mittal
Cerebral Venous Thrombosis (CVT), also known as cortical venous, cerebral sinus, cerebral venous sinus, or dural sinus thrombosis, is an infrequent grave condition affecting pregnant females, resulting from clot formation in one of the many outflow tracts of the brain. Although pregnancy-associated stroke or CVT is uncommon, the risk of stroke is greatly increased above the low baseline rate in young patients during late pregnancy and, even more so, during the puerperium. Haemorrhagic infarction can occur in the acute stage of CVT...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28203183/cerebral-venous-thrombosis-in-the-superior-sagittal-sinus-as-a-rare-cause-of-a-paroxysmal-kinetic-tremor
#15
Kei Murao, Shuji Arakawa, Yoshihiko Furuta, Masahiro Shijo, Tetsuro Ago, Takanari Kitazono
Cerebral venous thrombosis (CVT) has a broad spectrum of clinical presentation compared to arterial etiology. Seizure is one of the common symptoms and is more frequent than in other stroke types. Hence, transient neurological symptoms in CVT patients are usually due to epileptic seizures, while transient repetitive movement disorder is extremely rare except as a complication of epilepsy. We report a case of CVT in the superior sagittal sinus with a 1-year history of paroxysmal kinetic tremor without evident epilepsy...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28186753/experimental-and-theoretical-investigations-on-the-reaction-of-1-3-butadiene-with-cl-atom-in-the-gas-phase
#16
S Vijayakumar, B Rajakumar
Temperature dependent rate coefficients for the reaction of Cl atom with 1,3-butadiene were measured over the temperature range 269-363 K relative to its reaction with isoprene and 1-pentene. Theoretical calculations were performed for the title reaction using CVT/SCT in combination with CCSD(T)/6-31+G (d,p)//MP2/6-311+G(2df,2p) level of theory, to complement our experimental measurements. The test molecule would survive for 1 h in the atmosphere, and therefore, it can be considered as a very short-lived compound...
February 24, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28179559/acute-cerebral-venous-thrombosis-three-dimensional-visualization-and-quantification-of-hemodynamic-alterations-using-4-dimensional-flow-magnetic-resonance-imaging
#17
Florian Schuchardt, Anja Hennemuth, Laure Schroeder, Stephan Meckel, Michael Markl, Thomas Wehrum, Andreas Harloff
BACKGROUND AND PURPOSE: Cerebral venous thrombosis (CVT) affects venous hemodynamics and can provoke severe stroke and chronic intracranial hypertension. We sought to comprehensively analyze 3-dimensional blood flow and hemodynamic alterations during acute CVT including collateral recruitment and at follow-up. METHODS: Twenty-two consecutive patients with acute CVT were prospectively included and underwent routine brain magnetic resonance imaging (MRI) and 4-dimensional flow MRI at 3 T for the in vivo assessment of cerebral blood flow...
March 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28161058/endogenous-and-exogenous-mir-520c-3p-modulates-cd44-mediated-extravillous-trophoblast-invasion
#18
Hironori Takahashi, Akihide Ohkuchi, Tomoyuki Kuwata, Rie Usui, Yosuke Baba, Hirotada Suzuki, Tha Thu Chaw Kyi, Shigeki Matsubara, Shigeru Saito, Toshihiro Takizawa
INTRODUCTION: Adequate extravillous trophoblast (EVT) invasion is essential for successful placentation. Although miR-520c-3p plays an important role in CD44-mediated invasion in cancer cells, there is little information on whether miR-520c-3p is involved in the regulatory mechanisms of CD44-mediated EVT invasion. METHODS: We screened first trimester trophoblast cells and trophoblast cell lines for expression of miR-520c-3p using real-time polymerase chain reaction...
February 2017: Placenta
https://www.readbyqxmd.com/read/28132019/evaluation-of-type-replacement-following-hpv16-18-vaccination-pooled-analysis-of-two-randomized-trials
#19
Joseph E Tota, Frank Struyf, Marko Merikukka, Paula Gonzalez, Aimée R Kreimer, Dan Bi, Xavier Castellsagué, Newton S de Carvalho, Suzanne M Garland, Diane M Harper, Naveen Karkada, Klaus Peters, Willy A J Pope, Carolina Porras, Wim Quint, Ana Cecilia Rodriguez, Mark Schiffman, John Schussler, S Rachel Skinner, Júlio Cesar Teixeira, Allan Hildesheim, Matti Lehtinen
BACKGROUND: Current HPV vaccines do not protect against all oncogenic HPV types. Following vaccination, type replacement may occur, especially if different HPV types competitively interact during natural infection. Because of their common route of transmission, it is difficult to assess type interactions in observational studies. Our aim was to evaluate type replacement in the setting of HPV vaccine randomized controlled trials (RCTs). METHODS: Data were pooled from the Costa Rica Vaccine Trial (CVT; NCT00128661) and PATRICIA trial (NCT001226810)-two large-scale, double-blind RCTs of the HPV-16/18 AS04-adjuvanted vaccine-to compare cumulative incidence of nonprotected HPV infections across trial arms after four years...
January 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28117583/variational-effect-and-anharmonic-torsion-on-kinetic-modeling-for-initiation-reaction-of-dimethyl-ether-combustion
#20
Yulei Guan, Jing Gao, Yiming Song, Yang Li, Haixia Ma, Jirong Song
The reaction of dimethyl ether (DME) with molecular oxygen has been considered to be the dominant initiation pathway for DME combustion compared to the C-O bond fission. This work presents a detailed mechanism and kinetics investigation for the O2 + DME reaction with theoretical approaches. Using the CCSD(T)/6-311+G(2df,2pd) potential energy surface with the M06-2X/MG3S gradient, Hessian, and geometries, rate constants are evaluated by multistructural canonical variational transition-state theory (MS-CVT) including contributions from hindered rotation and multidimensional tunneling over the temperature range 200-2800 K...
February 9, 2017: Journal of Physical Chemistry. A
keyword
keyword
90059
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"