维普中文期刊产品整合服务
31篇 您的检索式:作者名="Shaffi"
    题名 作者 年代 出处 被引量
1Capacity-need gap in hospital resources for varying mitigation and containment strategies in India in the face of COVID-19 pandemic显示文摘Background:Due to uncertainties encompassing the transmission dynamics of COVID-19,mathematical models informing the trajectory of disease are being proposed throughout the world.Current pandemic is also characterized by surge in hospitalizations which has overwhelmed even the most resilient health systems.Therefore,it is imperative to assess health system preparedness in tandem with need projections for comprehensive outlook.Objective:We attempted this study to forecast the need for hospital resources for one year period and correspondingly assessed capacity and tipping points of Indian health system to absorb surges in need due to COVID-19.Methods:We employed age-structured deterministic SEIR model and modified it to allow for testing and isolation capacity to forecast the need under varying scenarios.Projections for documented cases were made for varying degree of containment and mitigation strategies.Correspondingly,data on health resources was collated from various government records.Further,we computed daily turnover of each of these resources which was then adjusted for proportion of cases requiring mild,severe and critical care to arrive at maximum number of COVID-19 cases manageable by health care system of India.Findings:Our results revealed pervasive deficits in the capacity of public health system to absorb surge in need during peak of epidemic.Also,model suggests that continuing strict lockdown measures in India after mid-May 2020 would have been ineffective in suppressing total infections significantly.Augmenting testing to 1,500,000 tests per day during projected peak(mid-September)under social-distancing measures and current test to positive rate of 9.7%would lead to more documented cases(60,000,000 to 90,000,000)culminating to surge in demand for hospital resources.A minimum allocation of 13x,70x and 37x times more beds for mild cases,ICU beds and mechanical ventilators respectively would be required to commensurate with need under that scenario.However,if testing capacity is limited to 9,000,000 tests per day(current situation as of 19th August 2020)under continued social-distancing measures,documented cases would plummet significantly,still requiring 5x,31x and 16x times the current allocated resources(beds for mild cases,ICU beds and mechanical ventilators respectively)to meet unmet need for COVID-19 treatment in India.Veenapani Rajeev Verma Anuraag Saini Sumirtha Gandhi Umakant Dash Shaffi Fazaludeen Koya 2020Infectious Disease Modelling2020,5,1:3
2Changing patterns of hepatitis A prevalence within the Saudi population over the last 18 years显示文摘AIM: To determine the seroprevalence of Hepatitis A (HAV) amongst Saudi children and compare it with previously reported prevalence data from the same population. METHODS: A total of 1357 students were randomly selected between the ages of 16 and 18 years (689 males and 668 females) from three different regions of Saudi Arabia (Madinah, Al-Qaseem, and Aseer) and tested for anti-HAV-IgG. RESULTS: The overall prevalence of anti-HAV-IgG among the study population was 18.6%. There was no difference between males and females but there was a significant difference in the seroprevalence (P = 0.0001) between the three different regions, with Ma- dinah region showing the highest prevalence (27.4%). When classified according to socioeconomic status, lower class students had a prevalence of 36.6%, lower middle class 16.6%, upper middle class 9.6%, and up- per class 5.9% (P = 0.0001). Comparing the current study results with those of previous studies in 1989 and 1997 involving the same population, there was a marked reduction in the overall prevalence of HAV from 52% in 1989, to 25% in 1997, to 18.6% in 2008 (P < 0.0001). CONCLUSION: Over the last 18 years, there has been a marked decline in the prevalence of HAV in Saudi children and adolescents. The current low prevalence rates call for strict adherence to vaccination policies in high-risk patients and raises the question of a univer- sal HAV vaccination program.Faleh Al Faleh Suliman Al Shehri Saleh Al Ansari Mohammed Al Jeffri Yaqoub Al Mazrou Ahmad Shaffi Ayman A Abdo 2008World Journal of Gastroenterology2008,14,48:2
3Assessment of Alpha-Fetoprotein in the Diagnosis of Hepatocellular Carcinoma in Middle Eastern Patients显示文摘Faisal M. Sanai Samia Sobki Khalid I. Bzeizi Shaffi A. Shaikh Khalid Alswat Waleed Al-Hamoudi Majid Almadi Faisal Al Saif Ayman A. Abdo 2010Digestive Diseases and Sciences2010,,12:2
4Bougainvillea spectabilis flowers extract protects against the rotenone-induced toxicity显示文摘Objective:To investigate the effect of two extracts of Bougainvillea spectabilis(B. spectabilis) flowers with yellow and pink/purple on brain oxidative stress and neuronal damage caused in rats by systemic rotenone injection. Methods:Rotenone 1.5 mg/kg was given three times per week alone or in combination with B. spectabilis flowers extracts(25 mg or 50 mg) via the subcutaneous route for 2 weeks. Brain concentrations of the lipid peroxidation marker malondialdehyde(MDA),reduced glutathione,nitric oxide(nitrite),the pro-inflammatory cytokine interleukin-1beta(Il-1β) as well as butyrylcholinesterase,and paraoxonase-1(PON-1) activities,were determined. Histopathology and caspase-3 immunohistochemistry were also performed. Results:Rotenone resulted in significant increases of brain MDA(the product of lipid peroxidation),and nitric oxide content along with decreased brain reduced glutathione. There were also marked and significant inhibition of brain PON-1 and BCh E activities and increased Il-1β in brain of rotenone-treated rats. B. spectabilis flowers extract itself resulted in brain oxidative stress increasing both lipid peroxidation and nitrite content whilst inhibiting PON-1 activity. The yellow flowers extract inhibited BCh E activity and increased brain Il-1β. When given to rotenone-treated rats,B. spectabilis extracts,however,decreased lipid peroxidation while their low administered doses increased brain GSH. Brain nitrite decreased by the pink extract but showed further increase by the yellow extract. Either extract,however,caused further inhibition of PON-1 activity while the yellow extract resulted in further inhibition of BChE activity. Histopathological studies indicated that both extracts protected against brain,liver and kidney damage caused by the toxicant. Conclusions:These data indicate that B. spectabilis flowers extracts exert protective effect against the toxic effects of rotenone on brain,liver and kidney. B. spectabilis flowers extracts decreased brain lipid peroxidation and prevented neuronal death due to rotenone and might thus prove the value in treatment of Parkinson's disease.Omar M.E.Abdel-Salam Eman R.Youness Nadia A.Ahmed Sayed A.El-Toumy Ahmed M.A.Souleman Nermeen Shaffie Dalia M.Abouelfadl 2017Asian Pacific Journal of Tropical Medicine2017,10,5:2
5Ammonia toxicity:Metabolic disorder in nine freshwater teleosts显示文摘Shaffi SA 1980Toxicology Letters1980,6,6:1
6Low 25-hydroxy vitamin D lev- els and cognitive impairment in hemodialysis patients显示文摘Shaffi K Tighiouart H Scott T 2013Clin J Am Soc Nephrol2013,8,6:1
7Cryptosporidiosis in patients with HIV/AIDS显示文摘Roberta M O?Connor Rehaan Shaffie Gagandeep Kang Honorine D Ward 2011AIDS2011,,5:1
8Cryptosporidiosis inpatients with HIV/AIDS显示文摘O'connor RM Shaffie R Kang G 2011AIDS2011,25,5:1
9Chipping performance of three processing potato cultivars during long term storage at two temperature regimes显示文摘Herman T J Love S L Shaffi B 1996American Potato Journal1996,,73:1
10Comparison of the sublethal effect of mercury and lead on visceral dehydrogenate system in three inland teleosts显示文摘Shaffi S A 1993Phy siol Res1993,42,1:1
11The activity of acid and alkaline phosphatases in the eggs of some freshwater teleosts显示文摘Shaffi S A Jafri A K 1974Indian J Fish1974,21,1:1
12Towards flame retardant cotton fabrics by atmospheric pressure plasma - induced graft polymerization : synthesis and application of novel phosphoramidate monomers 显示文摘Edwards B EL - Shaffi A Hauser P 2012Surface and Coatings Technology2012,,209:1
13Association between Osteocalcin, Metabolic Syndrome, and Cardiovascular Risk Factors: Role of Total and Undercarboxylated Osteocalcin in Patients with Type 2 Diabetes显示文摘Assim A. Alfadda Afshan Masood Shaffi Ahamed Shaik Hafedh Dekhil Michael Goran Mario Maggi 2013International Journal of Endocrinology2013,,:1
14CYP1A1 polymorphisms and risk of lung cancer in the ethnic Kashmiri population显示文摘Shaffi SM Shah MA Bhat IA 2009Asian Pac J Cancer Prev2009,10,4:1
15Effect of starvation on tissue and serum gluconeo-genic enzymes,alkaline phosphatase and tissue glycogen in thefreshwater catfish,Heteropneustes fossilis显示文摘Shaffi S A 1979Acta PhysiolAcad Sci1979,53,4:1
16Effect of starvation on tissue and serum gluconeogenic enzymes, alkaline phosphatase and tissue glycogen in the freshwater catfish, Heteropneustes fossilis 显示文摘SHAFFI S A 1979Acta Physiol Acad Sci Hung1979,53,4:1
17Estimating glomerular filtration rate using the chronic kidney disease-epidemiology collaboration creatinine equation: better risk predictions 显示文摘Inker LA Shaffi K Levey AS 2012Circ Heart Fail2012,5,3:1
18A digital signature scheme secure against adaptive chosen-message attacks 显示文摘Shaffi Goldwasser Silvio Micali Ron L Rivest 1988SIAM Journal on Computing1988,17,2:1
19]'racing VAT-2008 program participants'self-development: Effect of social work program undergraduates intervention strategies显示文摘FUZ1AH SHAFFIE RUZLAN MD-ALI 2015Social and Behavioral Sciences2015,171,:1
20The coagulopathy of liver disease: does vitamin K help?显示文摘Maha F. Saja Ayman A. Abdo Faisal M. Sanai Shaffi A. Shaikh Abdel Galil M. Abdel Gader 2013Blood Coagulation & Fibrinolysis2013,,1:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费