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13篇 您的检索式:作者名="Amritpal"
    题名 作者 年代 出处 被引量
1Infrared imaging with a wavefront-coded singlet lens显示文摘Gonzalo Muyo Amritpal Singh Mathias Andersson 2009Optics Express2009,17,21:1
2MULTISPIRAL COMPUTED TOMOGRAPHIC ANGIOGRAPHY OF RENAL ARTERIES OF LIVE POTENTIAL RENAL DONORS: A REVIEW OF 118 CASES显示文摘Atul Kapoor Aprajita Kapoor Goldaa Mahajan Amritpal Singh Parveen Sarin 2004Transplantation2004,,10:1
3Infrared imaging with a wavefront-coded singlet lens显示文摘Gonzalo Muyo Amritpal Singh Mathias Andersson 2009Optics Express2009,17,21:1
4Beneficial phytochemicals in potato — a review显示文摘Rajarathnam Ezekiel Narpinder Singh Shagun Sharma Amritpal Kaur 2011Food Research International2011,,:1
5Properties of starches separated from potatoes stored under different condi- tions显示文摘Amritpal K Narpinder S Rajarathnam E 2009Food Chemistry2009,1,14:1
6A fast and elitist mtdtiobjetive genetic algoithm:NSGA- l] 显示文摘KALYANMOYD AMRITP SAMEER A 2002IEEE Transaction on Evolutionary Comutation2002,6,2:1
7Infrared imaging with a wavefront-ooded singlet lens 显示文摘Gonzalo Muyo Amritpal Singh Mathias Andersson et al 2009Optics Express2009,17,21:1
8非木材纤维纸浆中阳离子微粒的助留作用显示文摘尽管在阴离子微粒留着体系领域的研究已经很多,但是有关阳离子聚合物微粒 (CPM)体系的研究却很少见诸报道。当前的工作是利用无乳化剂聚合作用由苯乙烯和阳离子单体或阳离子单体 /丙烯酰胺共聚物来制备具有结构明确的阳离子聚合物微粒。用 Z-电位仪 3000和 Mutek PCD03测定 CPM的粒径和电荷密度。 用光度分散仪 (photometric dispersion analyser)(PDA2000)进行的动态絮凝实验表明, CPM对细粘土或沉淀碳酸钙 (PCC)的助留作用是其粒径和电荷密度的函数;与阴离子聚丙烯酰胺配合使用絮凝作用明显增强。发现 CPM与具有低电荷密度和高分子量的阴离子聚合物具有最佳协同作用;这也显著降低了达到有效助留作用所需的聚合物絮凝剂的用量。阴离子聚合物: CPM在低比例值 1∶ 12时絮凝作用最佳,阴离子聚合物用量约为 0. 04% (以填料重量计 )。 研究扩展到大麻纤维 (Cannabis sativa)和亚麻纤维 (Linum usitatissimum)的非木材纤维中 PCC的留着作用。与工业用阴离子型硅溶胶 (二氧化硅 )相比, CPM能达到同等水平的留着率,但同时保持了结合强度,这一功能说明 CPM可用作非木材纤维的粘合剂。Huining Xiao Amritpal Singh 于乐双 侯彦召 2000国际造纸2000,19,6:1
9In- frared imaging with a wavefront-coded singlet lens 显示文摘Gonzalo Muyo Amritpal Singh Mathias Andersson 2009Optics Express2009,17,21:1
10How do neurons age?A focused review on the aging of the microtubular cytoskeleton显示文摘Aging is the leading risk factor for Alzheimer’s disease and other neurodegenerative diseases. We now understand that a breakdown in the neuronal cytoskeleton, mainly underpinned by protein modifications leading to the destabilization of microtubules, is central to the pathogenesis of Alzheimer’s disease. This is accompanied by morphological defects across the somatodendritic compartment, axon, and synapse. However, knowledge of what occurs to the microtubule cytoskeleton and morphology of the neuron during physiological aging is comparatively poor. Several recent studies have suggested that there is an age-related increase in the phosphorylation of the key microtubule stabilizing protein tau, a modification, which is known to destabilize the cytoskeleton in Alzheimer’s disease. This indicates that the cytoskeleton and potentially other neuronal structures reliant on the cytoskeleton become functionally compromised during normal physiological aging. The current literature shows age-related reductions in synaptic spine density and shifts in synaptic spine conformation which might explain age-related synaptic functional deficits. However, knowledge of what occurs to the microtubular and actin cytoskeleton, with increasing age is extremely limited. When considering the somatodendritic compartment, a regression in dendrites and loss of dendritic length and volume is reported whilst a reduction in soma volume/size is often seen. However, research into cytoskeletal change is limited to a handful of studies demonstrating reductions in and mislocalizations of microtubule-associated proteins with just one study directly exploring the integrity of the microtubules. In the axon, an increase in axonal diameter and age-related appearance of swellings is reported but like the dendrites, just one study investigates the microtubules directly with others reporting loss or mislocalization of microtubule-associated proteins. Though these are the general trends reported, there are clear disparities between model organisms and brain regions that are worthy of further investigation. Additionally, longitudinal studies of neuronal/cytoskeletal aging should also investigate whether these age-related changes contribute not just to vulnerability to disease but also to the decline in nervous system function and behavioral output that all organisms experience. This will highlight the utility, if any, of cytoskeletal fortification for the promotion of healthy neuronal aging and potential protection against age-related neurodegenerative disease. This review seeks to summarize what is currently known about the physiological aging of the neuron and microtubular cytoskeleton in the hope of uncovering mechanisms underpinning age-related risk to disease.Brad Richardson Thomas Goedert Shmma Quraishe Katrin Deinhardt Amritpal Mudher 2024Neural Regeneration Research2024,19,9:0
11Palaeodiet of Miocene Producers and Depositional Environments:Inferences from the First Evidence of Microcoprolites from India显示文摘This paper reviews research on coprolites from India,providing the first evidence of microcoprolites from the early Miocene(Aquitanian)Khari Nadi Formation sedimentary succession,exposed about 1.5 km northeast of the village of Kotada,Kachchh(Kutch)District,Gujarat State,western India.Morphometric and size comparisons(in a statistical framework)with known coprolites from the Mesozoic-Cenozoic successions of India(including those recorded herein)and globally suggest that fishes were the likely producers of the Kotada coprolites.Scanning electron microscopy confirms the presence of fish dental remains within the coprolites,while both Scanning Electron Microscopy(SEM)and Energy Dispersive X-ray Spectroscopy(EDS)reveal the phosphatic nature of the microscopic coprolite specimens(recorded herein)hinting that the producer(s)were predominantly carnivorous(ichthyophagous)in their diet.Furthermore,X-Ray Fluorescence(XRF)analysis of the host and associated lithologies allows us to deduce that the Kotada coprolites were deposited in a shallow marine environment,with possible aerial exposure of the host lithology occurring at some point after deposition.To the best of our knowledge,the present report is the first record of microscopic fish coprolites from India,as well as being the first from the Aquitanian of India and the oldest Neogene record from India.Vivesh VKAPUR Kamlesh KUMAR P.MORTHEKAI Amritpal Singh CHADDHA 2020Acta Geologica Sinica(English Edition)2020,94,5:0
12Covered transjugular intrahepatic portosystemic stent-shunt vs large volume paracentesis in patients with cirrhosis: A real-world propensity score-matched study显示文摘BACKGROUND Refractory ascites has a 1-year survival rate of 50%.In selected patients,treatment options include liver transplantation(LT)or transjugular intrahepatic portosystemic stent shunt(TIPSS).AIM To assess the outcomes of patients who underwent a TIPSS compared to large volume paracentesis(LVP).METHODS Retrospective study of patients who underwent a covered TIPSS or LVP for refractory or recurrent ascites over 7 years.Primary outcome was transplant-free survival(TFS).Further analysis was done with propensity score matching(PSM).RESULTS There were 150 patients[TIPSS group(n=75),LVP group(n=75)].Seven patients in the TIPSS group underwent LT vs 22 patients in the LVP group.Overall median follow up,20(0.47-179.53)mo.In the whole cohort,there was no difference in TFS[hazard ratio(HR):0.80,95%confidence interval(CI):0.54-1.21];but lower de novo hepatic encephalopathy with LVP(HR:95%CI:0.20-0.96).These findings were confirmed following PSM analysis.On multivariate analysis albumin and hepatocellular carcinoma at baseline were associated with TFS.CONCLUSION Covered TIPSS results in similar TFS compared to LVP in cirrhotic patients with advanced liver failure.Liver transplant assessment should be considered in all potential candidates for TIPSS.Further controlled studies are recommended to select appropriate patients for TIPSS.Amritpal Dhaliwal Homoyoon Merhzad Salil Karkhanis Dhiraj Tripathi 2022World Journal of Clinical Cases2022,10,31:0
13Relationships of hospitalization outcomes and timing to endoscopy in non-variceal upper gastrointestinal bleeding:A nationwide analysis显示文摘BACKGROUND The optimal timing of esophagogastroduodenoscopy(EGD)and the impact of clinico-demographic factors on hospitalization outcomes in non-variceal upper gastrointestinal bleeding(NVUGIB)remains an area of active research.AIM To identify independent predictors of outcomes in patients with NVUGIB,with a particular focus on EGD timing,anticoagulation(AC)status,and demographic features.METHODS A retrospective analysis of adult patients with NVUGIB from 2009 to 2014 was performed using validated ICD-9 codes from the National Inpatient Sample database.Patients were stratified by EGD timing relative to hospital admission(≤24 h,24-48 h,48-72 h,and>72 h)and then by AC status(yes/no).The primary outcome was all-cause inpatient mortality.Secondary outcomes included healthcare usage.RESULTS Of the 1082516 patients admitted for NVUGIB,553186(51.1%)underwent EGD.The mean time to EGD was 52.8 h.Early(<24 h from admission)EGD was associated with significantly decreased mortality,less frequent intensive care unit admission,shorter length of hospital stays,lower hospital costs,and an increased likelihood of discharge to home(all with P<0.001).AC status was not associated with mortality among patients who underwent early EGD(aOR 0.88,P=0.193).Male sex(OR 1.30)and Hispanic(OR 1.10)or Asian(aOR 1.38)race were also independent predictors of adverse hospitalization outcomes in NVUGIB.CONCLUSION Based on this large,nationwide study,early EGD in NVUGIB is associated with lower mortality and decreased healthcare usage,irrespective of AC status.These findings may help guide clinical management and would benefit from prospective validation.Simcha Weissman Muhammad Aziz Ayrton I Bangolo Dean Ehrlich Arnold Forlemu Anthony Willie Manesh K Gangwani Danish Waqar Hannah Terefe Amritpal Singh Diego MC Gonzalez Jayadev Sajja Fatma L Emiroglu Nicholas Dinko Ahmed Mohamed Mark A Fallorina David Kosoy Ankita Shenoy Anvit Nanavati Joseph D Feuerstein James H Tabibian 2023World Journal of Gastrointestinal Endoscopy2023,15,4:0
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