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108篇 您的检索式:作者名="TIMOTHY J W"
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1Observation of ocean current response to 1998 Hurricane Georges in the Gulf of Mexico显示文摘The ocean current response to a hurricane on the shelf-break is examined. The study area is the DeSoto Canyon in the northeast Gulf of Mexico, and the event is the passage of 1998 Hurricane Georges with a maximum wind speed of 49 m/s. The data sets used for analy- sis consist of the mooring data taken by the Field Program of the DeSoto Canyon Eddy Intrusion Study, and simultaneous winds ob- served by NOAA (National Oceanic and Atmospheric Administration) Moored Buoy 42040. Time-depth ocean current energy density images derived from the observed data show that the ocean currents respond almost immediately to the hurricane with important differ- ences on and off the shelf. On the shelf, in the shallow water of 100 m, the disturbance penetrates rapidly downward to the bottom and forms two energy peaks, the major peak is located in the mixed layer and the secondary one in the lower layer. The response dissipates quickly after external forcing disappears. Off the shelf, in the deep water, the major disturbance energy seems to be trapped in the mixed layer with a trailing oscillation; although the disturbance signals may still be observed at the depths of 500 and 1 290 m. Verti- cal dispersion analysis reveals that the near-initial wave packet generated off the shelf consists of two modes. One is a barotropic wave mode characterized by a fast decay rate of velocity amplitude of 0.020 s-1, and the other is baroclinic wave mode characterized by a slow decay rate of 0.006 9 s-1. The band-pass-filtering and empirical function techniques are employed to the frequency analysis. The results indicate that all frequencies shift above the local inertial frequency. On the shelf, the average frequency is 1.04f in the mixed layer, close to the diagnosed frequency of the first baroclinic mode, and the average frequency increases to 1.07f in the thermocline. Off the shelf, all frequencies are a little smaller than the diagnosed frequency of the first mode. The average frequency decreases from 1.035f in the mixed layer to 1.02f in the thermocline, implying a trend for the shift in frequency of the oscillations towards f with the depth.ZHENG Quanan LAI Ronald J HUANG Nortlen E PAN Jiayi LIU W Timothy 2006Acta Oceanologica Sinica2006,25,1:20
2Passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts and assessment of clinical outcomes显示文摘AIM To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts(TIPS) and compare outcomes with maximally dilated TIPS.METHODS Polytetrafluoroethylene covered TIPS(Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm(m TIPS), while 43 patients who were at increased risk for hepatic encephalopathy(HE), based on clinical evaluation or low pre-TIPS portosystemic gradient(PSG), had 10 mm TIPS sub-maximally dilated to 8 mm(sm TIPS). Group characteristics(age, gender, Model for End-Stage Liver Disease score, post-TIPS PSG and clinical outcomes were compared between groups, including clinical success(ascites or varices), primary patency,primary assisted patency, and severe post-TIPS HE. A subset of fourteen patients with sm TIPS underwent follow-up computed tomography imaging after TIPS creation, and were grouped based on time of imaging(< 6 mo and > 6 mo). Change in diameter and crosssectional area were measured with 3D imaging software to evaluate for passive expansion.RESULTS Patient characteristics were similar between the sm TIPS and m TIPS groups, except for pre-TIPS portosystemic gradient, which was lower in the sm TIPS group(19.4 mm Hg ± 6.8 vs 22.4 mm Hg ± 7.1, P = 0.01). Primary patency and primary assisted patency between sm TIPS and m TIPS was not significantly different(P = 0.64 and 0.55, respectively). Four of the 55 patients(7%) with sm TIPS required TIPS reduction for severe refractory HE, while this occurred in 6 of the 218 patients(3%) with m TIPS(P = 0.12). For the 14 patients with follow-up computed tomography(CT) imaging, the median imaging follow-up was 373 d. There was an increase in median TIPS diameter, median percent diameter change, median area, and median percent area change in patients with CT follow-up greater than 6 mo after TIPS placement compared to follow-up within 6 mo(8.45 mm, 5.58%, 56.04 mm^2, and 11.48%, respectively, P = 0.01).CONCLUSION Passive expansion of sm TIPS does occur but clinical outcomes of sm TIPS and m TIPS were similar. Sub-maximal dilation can prevent complications related to overshunting in select patients.Michael C Hsu Charles N Weber S William Stavropoulos Timothy W Clark Scott O Trerotola Richard D Shlansky Goldberg Michael C Soulen Gregory J Nadolski 2017World Journal of Hepatology2017,9,12:11
3Representation of skew in time-stepped two-dimensional finite-element models of electrical machines显示文摘Stephen W Timothy J F Alhertus FV 1995IEEE Transactions on Industry Applications1995,31,5:1
4Influence of agr on fibrinogen binding in Staphylococcus aureus Newman显示文摘Christiane W Damien M Timothy J 1996Infect Immun1996,64,8:1
5Transparent conducting Nnc oxide thin films doped with aluminum and molybdenum显示文摘JOEL N D TIMOTHY A G DAVID M W TERESA M B MATTHEW Y BOBBY T TIMOTHY J C 2007Journal V-acuum Society Technology2007,25,4:1
6Global lithium resources : relative importanceof pegmatite,brine and other deposits 显示文摘Stephen E Kealer Paul W Gruber Pablo A Medina Gregory A Keoleian Mark P Everson Timothy J Wall-ington 2012Ore GeologyReviews2012,48,:1
7Interleukin-8 signaling attenuates TRAIL-and chemotherapyinduced apoptosis through transcriptional regulation of c-FLIP in prostate cancer cells显示文摘Catherine W Timothy W Patrick G J 2008Mol Cancer Ther2008,7,9:1
8C, enomic structure of three long QT syndrome genes : KVLQT1, HERG, and KCNE1 显示文摘Splawski I Shen J Timothy K W 1998Genomics1998,51,:1
9TheNational Heart, Lung,and Blood Institute Pediatric Circulatory Sup-port显示文摘J Timothy Baldwin Harvey S Borovets Brian W Duncan 2006the American heart association2006,,:1
10Constitutive modeling of aluminum nitride for large strain, high-strain rate, and high-pressure applications显示文摘Timothy J Holmquist Douglas W Templeton Krishan D Bishnoi 2001International Journal of Impact Engineering2001,,3:1
11Efficacy of difloxacin in calves experimentally infected with Mannheimia haemolytica显示文摘Timothy W J Olchowy D V M phD 2000American Journal of Veterinary Research2000,61,6:1
12Freeze/thaw stress in Ceanothus of southern California chaparral显示文摘Frank W Ewers Michael C Lawson Timothy J Bowen 2003Oecologia2003,,136:1
13Representation of skew in time-stepped two-dimensional finite-element models of electrical machines 显示文摘Stephen W Timothy J F Albertus F V 1995IEEE Transactions on Industry Applications1995,31,5:1
14Percutaneous transhepatic venous access for hemodialysis显示文摘William S Jone J Timothy W 2003J Vascu Interv Radiol2003,14,:1
15Design of a PZT Bimorph Actuator Using a meta - model based Approach 显示文摘DAVID J C MARY I F TIMOTHY W S 2002Transactions of the ASME2002,124,6:1
16Cross -boder shopping:A North American perspective显示文摘Timothy D J Butler R W 0,,01:1
17Major histocompatibility complex differentition in Sacramento River chinook salmon显示文摘 Karen M P Hedrick F W 1999Genetics1999,151,:1
18Hippocampal mineralocorticoid, but not glucocorticoid, receptors modulate anxietylike behavior in rats 显示文摘Smythe J W Murphy D Timothy C 1997Pharmacol Biochem Behav1997,56,3:1
19Tumor Necrosis Factor α Is Toxic to Embryonic Mesencephalic Dopamine Neurons显示文摘Susan O McGuire Zao Dung Ling Jack W Lipton Caryl E Sortwell Timothy J Collier Paul M Carvey 2001Experimental Neurology2001,,2:1
20Tranexamic acid for intracerebral haemorrhage within 2 hours of onset: protocol of a phase Ⅱ randomised placebo-controlled double-blind multicentre trial显示文摘Rationale Haematoma growth is common early after intracerebral haemorrhage(ICH),and is a key determinant of outcome.Tranexamic acid,a widely available antifibrinolytic agent with an excellent safety profile,may reduce haematoma growth.Methods and design Stopping intracerebral haemorrhage with tranexamic acid for hyperacute onset presentation including mobile stroke units(STOP-MSU)is a phase Ⅱ double-blind,randomised,placebo-controlled,multicentre,international investigator-led clinical trial,conducted within the estimand statistical framework.Hypothesis In patients with spontaneous ICH,treatment with tranexamic acid within 2 hours of onset will reduce haematoma expansion compared with placebo.Sample size estimates A sample size of 180 patients(90 in each arm)would be required to detect an absolute difference in the primary outcome of 20%(placebo 39%vs treatment 19%)under a two-tailed significance level of 0.05.An adaptive sample size re-estimation based on the outcomes of 144 patients will allow a possible increase to a prespecified maximum of 326 patients.Intervention Participants will receive 1 g intravenous tranexamic acid over 10 min,followed by 1 g intravenous tranexamic acid over 8 hours;or matching placebo.Primary efficacy measure The primary efficacy measure is the proportion of patients with haematoma growth by 24±6 hours,defined as either≥33%relative increase or≥6 mL absolute increase in haematoma volume between baseline and follow-up CT scan.Discussion We describe the rationale and protocol of STOP-MSU,a phase Ⅱ trial of tranexamic acid in patients with ICH within 2 hours from onset,based in participating mobile stroke units and emergency departments.Nawaf Yassi Henry Zhao Leonid Churilov Bruce C V Campbell Teddy Wu Henry Ma Andrew Cheung Timothy Kleinig Helen Brown Philip Choi Jiann-Shing Jeng Annemarei Ranta Hao-Kuang Wang Geoffrey C Cloud Rohan Grimley Darshan Shah Neil Spratt Der-Yang Cho Karim Mahawish Lauren Sanders John Worthington Ben Clissold Atte Meretoja Vignan Yogendrakumar Mai Duy Ton Duc Phuc Dang Nguyen Thai My Phuong Huy-Thang Nguyen Chung Y Hsu Gagan Sharma Peter J Mitchell Bernard Yan Mark W Parsons Christopher Levi Geoffrey A Donnan Stephen M Davis 2022Stroke & Vascular Neurology2022,7,2:1
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