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Health behavior outcomes in stroke survivors prescribed wearables for atrial fibrillation detection stratified by age
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作者 Joanne Mathew Jordy Mehawej +11 位作者 Ziyue Wang Taylor Orwig Eric Ding Andreas Filippaios Syed Naeem Edith Mensah Otabil Alex Hamel Kamran Noorishirazi IrinaRadu Jane Saczynski David D.McManus Khanh-Van Tran 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2024年第3期323-330,共8页
BACKGROUND Smartwatches have become readily accessible tools for detecting atrial fibrillation(AF).There remains limited data on how they affect psychosocial outcomes and engagement in older adults.We examine the heal... BACKGROUND Smartwatches have become readily accessible tools for detecting atrial fibrillation(AF).There remains limited data on how they affect psychosocial outcomes and engagement in older adults.We examine the health behavior outcomes of stroke survivors prescribed smartwatches for AF detection stratified by age.METHODS We analyzed data from the Pulsewatch study,a randomized controlled trial that enrolled patients(≥50 years)with a history of stroke or transient ischemic attack and CHA2DS2-VASc≥2.Intervention participants were equipped with a cardiac patch monitor and a smartwatch-app dyad,while control participants wore the cardiac patch monitor for up to 44 days.We evaluated health behavior parameters using standardized tools,including the Consumer Health Activation Index,the Generalized Anxiety Disorder questionnaire,the 12-Item Short Form Health Survey,and wear time of participants categorized into three age groups:Group 1(ages 50-60),Group 2(ages 61-69),and Group 3(ages 70-87).We performed statistical analysis using a mixedeffects repeated measures linear regression model to examine differences amongst age groups.RESULTS Comparative analysis between Groups 1,2 and 3 revealed no significant differences in anxiety,patient activation,perception of physical health and wear time.The use of smartwatch technology was associated with a decrease in perception of mental health for Group 2 compared to Group 1(β=-3.29,P=0.046).CONCLUSION Stroke survivors demonstrated a willingness to use smartwatches for AF monitoring.Importantly,among these study participants,the majority did not experience negative health behavior outcomes or decreased engagement as age increased. 展开更多
关键词 PRESCRIBED STRATIFIED WEAR
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The Burden of Undiagnosed Hypertension and Associated Risk Factors among Adults in a Rural Community in Imo Sate, South-East Nigeria
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作者 Iwunze Anuli Egwim Jideuma +4 位作者 Onuoha Frank Olekanma Chinonye Ndukwu Chiagozie Igbonagwam Hope Dike Victor 《International Journal of Clinical Medicine》 CAS 2024年第2期101-122,共22页
Background: Cardiovascular diseases are the leading cause of death globally and hypertension is a major contributor to this burden. Many people with hypertension have poorly controlled blood pressure and up to half of... Background: Cardiovascular diseases are the leading cause of death globally and hypertension is a major contributor to this burden. Many people with hypertension have poorly controlled blood pressure and up to half of the adults with hypertension are unaware of their hypertensive status due to factors that bother on poor management and poor screening approaches. The implication is that people who have poor access to healthcare especially those in the rural communities are at increased risk of cardiovascular complications and all-cause mortality. Unfortunately, not much has been done to ascertain the burden of undiagnosed hypertension and associated risk factors in rural communities in Nigeria. Methods: We conducted a community-based cross-sectional study in a rural community in Imo State, Nigeria, on burden of undiagnosed hypertension with participants recruited via a multi-stage sampling method. An interviewer-administered questionnaire was used, and standardized instruments were applied to obtain, process and analyze the data. Tests of association between the independent variables and outcome were conducted using logistic regression. P-value of Results: A total of 380 adults participated in the study. The mean age was 44.2 years. The prevalence of undiagnosed hypertension was 35.8%. Logistic regression revealed that age, with the respondents in the age groups 26 - 35 years (OR = 10.647, 1.910 - 59.345, p-value = 0.007), 36 - 45 (OR = 3.680, 1.263 - 10.723, p-value = 0.017), 46 - 55 years (OR = 2.737, 1.114 - 6.727, p-value = 0.039), 56 - 65 years old (OR = 3.384, 1.610 - 7.115, p-value = 0.001);and being married (OR = 3.846, 1.118 - 13.233, p-value = 0.033), were independent risk factors for undiagnosed hypertension. Conclusion: The prevalence of undiagnosed hypertension in the rural population of South-East Nigeria is high. Younger age (26 - 35 years) had the highest odds of risk for occurrence of hypertension. Also being married was identified as a risk factor for undiagnosed hypertension. 展开更多
关键词 HYPERTENSION Undiagnosed Hypertension Risk Factors Rural Community
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Sex and racial disparities in non-alcoholic fatty liver disease-related cardiovascular events: National inpatient sample analysis (2019)
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作者 Rupak Desai Ali Tariq Alvi +5 位作者 Advait Vasavada Yashwitha Sai Pulakurthi Bhavin Patel Adil Sarvar Mohammed Shreyans Doshi Ikechukwu Ogbu 《World Journal of Cardiology》 2024年第3期137-148,共12页
BACKGROUND Non-alcoholic fatty liver disease(NAFLD)increases cardiovascular disease(CVD)risk irrespective of other risk factors.However,large-scale cardiovascular sex and race differences are poorly understood.AIM To ... BACKGROUND Non-alcoholic fatty liver disease(NAFLD)increases cardiovascular disease(CVD)risk irrespective of other risk factors.However,large-scale cardiovascular sex and race differences are poorly understood.AIM To investigate the relationship between NAFLD and major cardiovascular and cerebrovascular events(MACCE)in subgroups using a nationally representative United States inpatient sample.METHODS We examined National Inpatient Sample(2019)to identify adult hospitalizations with NAFLD by age,sex,and race using ICD-10-CM codes.Clinical and demographic characteristics,comorbidities,and MACCE-related mortality,acute myocardial infarction(AMI),cardiac arrest,and stroke were compared in NAFLD cohorts by sex and race.Multivariable regression analyses were adjusted for sociodemographic characteristics,hospitalization features,and comorbidities.RESULTS We examined 409130 hospitalizations[median 55(IQR 43-66)years]with NFALD.NAFLD was more common in females(1.2%),Hispanics(2%),and Native Americans(1.9%)than whites.Females often reported non-elective admissions,Medicare enrolment,the median age of 55(IQR 42-67),and poor income.Females had higher obesity and uncomplicated diabetes but lower hypertension,hyperlipidemia,and complicated diabetes than males.Hispanics had a median age of 48(IQR 37-60),were Medicaid enrollees,and had non-elective admissions.Hispanics had greater diabetes and obesity rates than whites but lower hypertension and hyperlipidemia.MACCE,all-cause mortality,AMI,cardiac arrest,and stroke were all greater in elderly individuals(P<0.001).MACCE,AMI,and cardiac arrest were more common in men(P<0.001).Native Americans(aOR 1.64)and Asian Pacific Islanders(aOR 1.18)had higher all-cause death risks than whites.CONCLUSION Increasing age and male sex link NAFLD with adverse MACCE outcomes;Native Americans and Asian Pacific Islanders face higher mortality,highlighting a need for tailored interventions and care. 展开更多
关键词 Non-alcoholic fatty liver disease Cardiovascular disease Major cardiovascular and cerebrovascular events Sex/gender disparities MORTALITY
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Mast cell activation syndrome:An up-to-date review of literature
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作者 ÖnerÖzdemir Gökçe Kasımoğlu +2 位作者 Ayşegül Bak Hüseyin Sütlüoğlu Süreyya Savaşan 《World Journal of Clinical Pediatrics》 2024年第2期104-113,共10页
Mast cells are a subtype of white blood cells and are involved in the immune system.These cells contain many chemical substances called mediators,which are involved in the allergic response.The fact that mast cells pl... Mast cells are a subtype of white blood cells and are involved in the immune system.These cells contain many chemical substances called mediators,which are involved in the allergic response.The fact that mast cells play a role in many events that require urgent intervention,especially anaphylaxis,has led to a more detailed study of these cells.The diseases also caused by dysfunctions of mast cells have been examined in many circumstances.For instance,mast cell activation syndrome is known as an augmented number of cells due to decreased cell death,resulting in clinical symptoms affecting many systems.The main common symptoms include flushing,hypotension,urticaria,angioedema,headache,vomiting and diarrhea.Although the underlying mechanism is not yet clearly known,we aim to review the literature in a broad perspective and bring together the existing knowledge in the light of the literature due to the diversity of its involvement in the body and the fact that it is a little known syndrome. 展开更多
关键词 Mast cell Mast cell activation syndrome TRYPTASE HISTAMINE
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Major depressive disorders in patients with inflammatory bowel disease and rheumatoid arthritis
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作者 Maryam Bilal Haider Brinda Basida Jasleen Kaur 《World Journal of Clinical Cases》 SCIE 2023年第4期764-779,共16页
BACKGROUND Various immune-mediated inflammatory diseases consisting of inflammatory bowel disease(IBD)and rheumatoid arthritis(RA),are found to have a substantial societal burden,increased healthcare costs,and progres... BACKGROUND Various immune-mediated inflammatory diseases consisting of inflammatory bowel disease(IBD)and rheumatoid arthritis(RA),are found to have a substantial societal burden,increased healthcare costs,and progressive disability.Studies suggest that patients with vs without comorbid depression have a more significant disability,a lower likelihood of remission,and reduced adherence to therapy.Elevated interleukin(IL)-1β,tumor necrosis factor-α,and IL-6 contribute to developing depression by the impaired physiological responses to stress,resulting in increased pain,fever,fatigue,and lack thereof of interest,and thus poor long-term outcomes.This study emphasizes the timely recognition of the prevalence of major depressive disorder(MDD)in patients with RA and IBD combined,thus preventing disability.AIM To identify the prevalence level and temporal trends of depression in hospitalized IBD-RA patients.METHODS All adult hospitalized patients from January 2000 to December 2019 in the nationwide inpatient sample(NIS)were captured.The study population included all patients with a primary or secondary IBD-RA overlap disease using corresponding international classification of diseases(ICD)-9 and ICD-10 codes.IBD includes Crohn’s disease and ulcerative colitis.The study population was divided into IBD-RA without MDD(controls)and IBD-RA with MDD(cases).For group comparison between MDD vs no MDD,we used Student’s t-test for continuous variables and RaoScott Chi-square tests for categorical variables.For univariate analyses,we used logistic regression,and for multivariate analysis,we used a weighted multi-level mixed-effects model.We attested all hypotheses with two-tailed significance level of 0.05(P<0.05 was considered significant).The outcome is to examine the temporal trends and prevalence of depression in patients with IBD-RA by gender,race,and age.RESULTS A total of 133315 records were identified with IBD-RA overlap,of which 26155 patients(19.62%)had MDD.Among the IBD-RA patients,those who had MDD were younger[mean age of 56 years(SD±15)]to IBD-RA without MDD patients with a P<0.0001,more females(80%among cases vs 73%among controls)than males with a P<0.0001,frequent in the white race(79%among cases vs 73%among controls)than black race.Over the 19 years,the number of patients with MDD in IBDRA increased from 153(the year 2000)to 2880(the year 2019)in weighted NIS,representing a 1782%increase compared to the year 2000 with a P<0.001.Factors associated with higher MDD included younger age,female gender,white race,alcohol,opioids,esophageal disorders,peptic ulcer disease,chronic pancreatitis,paralysis,dementia,menopausal disorders,obesity,nutritional deficiencies,diabetes mellitus with chronic complications,and osteoarthritis.CONCLUSION There is a rise in the prevalence of depression in younger patients with IBD-RA combined compared to their counterparts.These patients are also at higher risk for the increased cost of care and poor treatment compliance.It is crucial to educate the involved clinicians to identify the early signs and symptoms of depression in patients with IBD or RA or IBD-RA combined and treat them to have a better overall prognosis. 展开更多
关键词 Inflammatory bowel disease Rheumatoid arthritis DEPRESSION MULTIMORBIDITY EPIDEMIOLOGY Demographics
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Influence of non-alcoholic fatty liver disease on non-variceal upper gastrointestinal bleeding:A nationwide analysis
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作者 Aakriti Soni Anuroop Yekula +4 位作者 Yuvaraj Singh Nitish Sood Dushyant Singh Dahiya Kannu Bansal GM Abraham 《World Journal of Hepatology》 2023年第1期79-88,共10页
BACKGROUND Non-alcoholic fatty liver disease(NAFLD)is the leading cause of liver disease globally with an estimated prevalence of 25%,with the clinical and economic burden expected to continue to increase.In the Unite... BACKGROUND Non-alcoholic fatty liver disease(NAFLD)is the leading cause of liver disease globally with an estimated prevalence of 25%,with the clinical and economic burden expected to continue to increase.In the United States,non-variceal upper gastrointestinal bleeding(NVUGIB)has an estimated incidence of 61-78 cases per 100000 people with a mortality rate of 2%-15%based on co-morbidity burden.AIM To identify the outcomes of NVUGIB in NAFLD hospitalizations in the United States.METHODS We utilized the National Inpatient Sample from 2016-2019 to identify all NVUGIB hospitalizations in the United States.This population was divided based on the presence and absence of NAFLD.Hospitalization characteristics,outcomes and complications were compared.RESULTS The total number of hospitalizations for NVUGIB was 799785,of which 6%were found to have NAFLD.NAFLD and GIB was,on average,more common in younger patients,females,and Hispanics than GIB without NAFLD.Interestingly,GIB was less common amongst blacks with NAFLD.Multivariate logistic regression analysis was conducted,controlling for the multiple covariates.The primary outcome of interest,mortality,was found to be significantly higher in patients with NAFLD and GIB[adjusted odds ratio(aOR)=1.018(1.013-1.022)].Secondary outcomes of interest,shock[aOR=1.015(1.008-1.022)],acute respiratory failure[aOR=1.01(1.005-1.015)]and acute liver failure[aOR=1.016(1.013-1.019)]were all more likely to occur in this cohort.Patients with NAFLD were also more likely to incur higher total hospital charges(THC)[$2148($1677-$2618)];however,were less likely to have a longer length of stay[0.27 d(0.17-0.38)].Interestingly,in our study,the patients with NAFLD were less likely to suffer from acute myocardial infarction[aOR=0.992(0.989-0.995)].Patients with NAFLD were not more likely to suffer acute kidney injury,sepsis,blood transfusion,intubation,or dialysis.CONCLUSION NVUGIB in NAFLD hospitalizations had higher inpatient mortality,THC,and complications such as shock,acute respiratory failure,and acute liver failure compared to those without NAFLD. 展开更多
关键词 Non-alcoholic fatty liver disease Non-variceal gastrointestinal bleeding OUTCOMES MORTALITY COMPLICATIONS
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Diabetes Risk Factor and Its Relationship to Increasing Coronavirus (COVID-19) Mortality Rate in United States in 2019-2022: An Epidemiological Study
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作者 Henry Zeidan Iman Zeidan Laura Scholer-Bland 《Open Journal of Epidemiology》 2023年第2期128-143,共16页
As an effort to understand the effect of diabetes on the increasing rate of COVID-19 infection, we embarked upon a detailed statistical analysis of various datasets that include COVID-19 infection and mortality rate, ... As an effort to understand the effect of diabetes on the increasing rate of COVID-19 infection, we embarked upon a detailed statistical analysis of various datasets that include COVID-19 infection and mortality rate, diabetes and diseases that may contribute to the severity and risk factor of diabetes in individuals and this impact on COVID-19 and the mortality rate. These diseases include respiratory diseases, cardiovascular diseases, and obesity. Equally significant is the statistical analysis on ethnicity, age, and sex on COVID-19 infection as well as mortality rate. Their possible contributions to increasing the severity and risk factor of diabetes as a risk to mortality to individuals who have COVID-19. Objectives: The ultimate objectives of this investigation are as follow: 1) Is there a risk factor of diabetes on COVID-19 infection and increasing mortality rate? 2) To what extent do other disease conditions that include, obesity, heart failure, and respiratory diseases influence the severity and risk factor of diabetes on increasing COVID-19 infection and mortality rate? 3) To what extent does age, race, and gender increase the mortality of COVID-19 and increase the severity and risk factor of diabetes on COVID-19 mortality rate? 4) How and why COVID-19 virus increases the risk of diabetes in children? 5) Diabetes and COVID-19: Who is most at Risk? Lastly, understanding the misconception of COVID-19 and diabetes. 展开更多
关键词 Middle East Respiratory Syndrome Coronavirus (MERS-COVID) Infection Risk Factors Omicron Virus COVID-19 Risk on Children Interactions of Independent Variables Poisson Regression Linear Regression
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Acute pancreatitis in liver transplant hospitalizations:Identifying national trends,clinical outcomes and healthcare burden in the United States
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作者 Dushyant Singh Dahiya Vinay Jahagirdar +12 位作者 Saurabh Chandan Manesh Kumar Gangwani Nooraldin Merza Hassam Ali Smit Deliwala Muhammad Aziz Daryl Ramai Bhanu Siva Mohan Pinnam Jay Bapaye Chin-I Cheng Sumant Inamdar Neil R Sharma Mohammad Al-Haddad 《World Journal of Hepatology》 2023年第6期797-812,共16页
BACKGROUND Acute pancreatitis(AP)in liver transplant(LT)recipients may lead to poor clinical outcomes and development of severe complications.AIM We aimed to assess national trends,clinical outcomes,and the healthcare... BACKGROUND Acute pancreatitis(AP)in liver transplant(LT)recipients may lead to poor clinical outcomes and development of severe complications.AIM We aimed to assess national trends,clinical outcomes,and the healthcare burden of LT hospitalizations with AP in the United States(US).METHODS The National Inpatient Sample was utilized to identify all adult(≥18 years old)LT hospitalizations with AP in the US from 2007–2019.Non-LT AP hospitalizations served as controls for comparative analysis.National trends of hospitalization characteristics,clinical outcomes,complications,and healthcare burden for LT hospitalizations with AP were highlighted.Hospitalization characteristics,clinical outcomes,complications,and healthcare burden were also compared between the LT and non-LT cohorts.Furthermore,predictors of inpatient mortality for LT hospitalizations with AP were identified.All P values≤0.05 were considered statistically significant.RESULTS The total number of LT hospitalizations with AP increased from 305 in 2007 to 610 in 2019.There was a rising trend of Hispanic(16.5%in 2007 to 21.1%in 2018,P-trend=0.0009)and Asian(4.3%in 2007 to 7.4%in 2019,p-trend=0.0002)LT hospitalizations with AP,while a decline was noted for Blacks(11%in 2007 to 8.3%in 2019,P-trend=0.0004).Furthermore,LT hospitalizations with AP had an increasing comorbidity burden as the Charlson Comorbidity Index(CCI)score≥3 increased from 41.64%in 2007 to 62.30%in 2019(P-trend<0.0001).We did not find statistically significant trends in inpatient mortality,mean length of stay(LOS),and mean total healthcare charge(THC)for LT hospitalizations with AP despite rising trends of complications such as sepsis,acute kidney failure(AKF),acute respiratory failure(ARF),abdominal abscesses,portal vein thrombosis(PVT),and venous thromboembolism(VTE).Between 2007–2019,6863 LT hospitalizations with AP were compared to 5649980 non-LT AP hospitalizations.LT hospitalizations with AP were slightly older(53.5 vs 52.6 years,P=0.017)and had a higher proportion of patients with CCI≥3(51.5%vs 19.8%,P<0.0001)compared to the non-LT cohort.Additionally,LT hospitalizations with AP had a higher proportion of Whites(67.9%vs 64.6%,P<0.0001)and Asians(4%vs 2.3%,P<0.0001),while the non-LT cohort had a higher proportion of Blacks and Hispanics.Interestingly,LT hospitalizations with AP had lower inpatient mortality(1.37%vs 2.16%,P=0.0479)compared to the non-LT cohort despite having a higher mean age,CCI scores,and complications such as AKF,PVT,VTE,and the need for blood transfusion.However,LT hospitalizations with AP had a higher mean THC($59596 vs$50466,P=0.0429)than the non-LT cohort.CONCLUSION In the US,LT hospitalizations with AP were on the rise,particularly for Hispanics and Asians.However,LT hospitalizations with AP had lower inpatient mortality compared to non-LT AP hospitalizations. 展开更多
关键词 Liver transplantation PANCREATITIS MORTALITY COST Length of stay
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Peptic ulcer disease in non-alcoholic fatty liver disease hospitalizations:A new challenge on the horizon in the United States
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作者 Dushyant Singh Dahiya Vinay Jahagirdar +9 位作者 Hassam Ali Manesh Kumar Gangwani Muhammad Aziz Saurabh Chandan Amandeep Singh Abhilash Perisetti Aakriti Soni Sumant Inamdar Madhusudhan R Sanaka Mohammad Al-Haddad 《World Journal of Hepatology》 2023年第4期564-576,共13页
BACKGROUND Peptic ulcer disease(PUD)is frequently seen in patients with liver cirrhosis.However,current literature lacks data on PUD in non-alcoholic fatty liver disease(NAFLD)hospitalizations.AIM To identify trends a... BACKGROUND Peptic ulcer disease(PUD)is frequently seen in patients with liver cirrhosis.However,current literature lacks data on PUD in non-alcoholic fatty liver disease(NAFLD)hospitalizations.AIM To identify trends and clinical outcomes of PUD in NAFLD hospitalizations in the United States.METHODS The National Inpatient Sample was utilized to identify all adult(≥18 years old)NAFLD hospitalizations with PUD in the United States from 2009-2019.Hospitalization trends and outcomes were highlighted.Furthermore,a control group of adult PUD hospitalizations without NAFLD was also identified for a comparative analysis to assess the influence of NAFLD on PUD.RESULTS The total number of NAFLD hospitalizations with PUD increased from 3745 in 2009 to 3805 in 2019.We noted an increase in the mean age for the study population from 56 years in 2009 to 63 years in 2019(P<0.001).Racial differences were also prevalent as NAFLD hospitalizations with PUD increased for Whites and Hispanics,while a decline was observed for Blacks and Asians.The all-cause inpatient mortality for NAFLD hospitalizations with PUD increased from 2%in 2009 to 5%in 2019(P<0.001).However,rates of Helicobacter pylori(H.pylori)infection and upper endoscopy decreased from 5%in 2009 to 1%in 2019(P<0.001)and from 60%in 2009 to 19%in 2019(P<0.001),respectively.Interestingly,despite a significantly higher comorbidity burden,we observed lower inpatient mortality(2%vs 3%,P=0.0004),mean length of stay(LOS)(11.6 vs 12.1 d,P<0.001),and mean total healthcare cost(THC)($178598 vs$184727,P<0.001)for NAFLD hospitalizations with PUD compared to non-NAFLD PUD hospitalizations.Perforation of the gastrointestinal tract,coagulopathy,alcohol abuse,malnutrition,and fluid and electrolyte disorders were identified to be independent predictors of inpatient mortality for NAFLD hospitalizations with PUD.CONCLUSION Inpatient mortality for NAFLD hospitalizations with PUD increased for the study period.However,there was a significant decline in the rates of H.pylori infection and upper endoscopy for NAFLD hospitalizations with PUD.After a comparative analysis,NAFLD hospitalizations with PUD had lower inpatient mortality,mean LOS,and mean THC compared to the non-NAFLD cohort. 展开更多
关键词 Non-alcoholic fatty liver disease Peptic ulcer disease TRENDS OUTCOMES MORTALITY
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新疆大湾沟晚奥陶世疑源类 被引量:4
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作者 李军 Reed WICANDER +3 位作者 燕夔 朱怀诚 黄智斌 唐鹏 《微体古生物学报》 CSCD 北大核心 2007年第1期1-14,共14页
新疆塔里木盆地西北缘大湾沟剖面晚奥陶世地层发现保存良好的疑源类组合。该组合包括17属27种,以棘刺类(特别是Baltisphaeridium)占优势;其次为梭形类,以Navifusa为代表。大湾沟疑源类组合与世界其它地区同期组合对比表明,在晚奥陶世时... 新疆塔里木盆地西北缘大湾沟剖面晚奥陶世地层发现保存良好的疑源类组合。该组合包括17属27种,以棘刺类(特别是Baltisphaeridium)占优势;其次为梭形类,以Navifusa为代表。大湾沟疑源类组合与世界其它地区同期组合对比表明,在晚奥陶世时疑源类古生物地理分区性减弱,不及早—中奥陶世明显。该组合中有13个种仅分布于“Caradoc”—“Ashgill”期,地理分布广泛,因而颇具生物地层学潜力。 展开更多
关键词 疑源类 晚奥陶世 生物地层学 古生物地理学 塔里木盆地 新疆
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可互操作的GIS研究 被引量:16
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作者 黄裕霞 Cliff Kottman +1 位作者 柯正谊 何建邦 《中国图象图形学报(A辑)》 CSCD 北大核心 2001年第9期925-931,共7页
随着“计算机就是网络”的想望成为现实 ,人们希望独立于数据结构和语义等具体条件 ,跨平台地获取大量信息 .GIS互操作是广大用户跨平台获取地理信息的有效途径 ,因而它成为目前 GIS界的研究热点 .按照侧重点的不同 ,将 GIS互操作分为... 随着“计算机就是网络”的想望成为现实 ,人们希望独立于数据结构和语义等具体条件 ,跨平台地获取大量信息 .GIS互操作是广大用户跨平台获取地理信息的有效途径 ,因而它成为目前 GIS界的研究热点 .按照侧重点的不同 ,将 GIS互操作分为技术互操作、服务互操作和语义互操作三类 ,并分别说明三者的实现方法、关建技术、研究现状和不足之处 .最后对 GIS互操作的发展方向进行了展望 . 展开更多
关键词 GIS 互操作 信息共享 空间信息 地理信息系统
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过度反应、成交量与股票收益率--基于动态分位数回归的实证分析 被引量:1
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作者 吴晓瑞 薛文骏 《金融与经济》 北大核心 2014年第6期64-70,55,共8页
本文综合使用我国2006年至2013年上证全指指数和相关构成指数的日度数据,通过动态分位数模型研究我国股票过度反应、成交量同股票收益率的动态影响关系。实证结果表明,我国投资者的过度反应使得股票收益率存在负向的序列相关。投资者的... 本文综合使用我国2006年至2013年上证全指指数和相关构成指数的日度数据,通过动态分位数模型研究我国股票过度反应、成交量同股票收益率的动态影响关系。实证结果表明,我国投资者的过度反应使得股票收益率存在负向的序列相关。投资者的过度交易和投机是造成成交量和股票收益率存在负向影响作用的一个原因,同时公司市值也会对投资者的交易行为产生影响。此外,投资者过度反应程度越大,股票收益率在随后的修正程度也会越大。我国投资者需要加强风险管理意识,保持理性冷静的投资观念,以减少由于个人心理偏差而造成的投资损失。 展开更多
关键词 股票收益率序列相关 过度反应 成交量 动态分位数回归
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东亚现代人的起源 被引量:1
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作者 Milford H Wolpoff Rachel Caspari +1 位作者 徐欣(译) 崔娅铭(译) 《人类学学报》 CSCD 北大核心 2013年第4期399-410,共12页
古遗传学过去十年的发展表明,现代人在全新物种——智人的出现过程中并没有一个系统发育学意义上的起源,因此,解剖学、行为学和遗传学方面的现代性并不是一个相同且单一事件的结果。本文研究了东亚解剖学、行为学和遗传学方面的证据... 古遗传学过去十年的发展表明,现代人在全新物种——智人的出现过程中并没有一个系统发育学意义上的起源,因此,解剖学、行为学和遗传学方面的现代性并不是一个相同且单一事件的结果。本文研究了东亚解剖学、行为学和遗传学方面的证据,现代性在每个方面都可以被理解为多地区进化过程的一个片段,而不是一个整体。三个方面的现代性在某种程度上是相互独立的,而且各自都是在不同的时间发展出来,直到晚更新世的人口变化才使三者相互关联起来;人类存活率的提高和不断扩张改变了人类的进化行程。 展开更多
关键词 亚洲 人类 进化 现代性
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Motor competence and health-related fitness in children:A cross-cultural comparison between Portugal and the United States 被引量:5
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作者 Carlos Luz Rita Cordovil +7 位作者 Luis Paulo Rodrigues Zan Gao Jacqueline D.Goodway Ryan S.Sacko Danielle R.Nesbitt Rick C.Ferkel Larissa K.True David F.Stodden 《Journal of Sport and Health Science》 SCIE 2019年第2期130-136,共7页
Background: Motor competence and health-related fitness are important components for the development and maintenance of a healthy lifestyle in children. This study examined cross-cultural performances on motor compete... Background: Motor competence and health-related fitness are important components for the development and maintenance of a healthy lifestyle in children. This study examined cross-cultural performances on motor competence and health-related fitness between Portuguese and U.S.children.Methods: Portuguese(n = 508; 10.14 § 2.13 years, mean § SD) and U.S.(n = 710; 9.48 § 1.62 years) children performed tests of cardiorespiratory fitness(Progressive Aerobic Cardiovascular Endurance Run), upper body strength(handgrip), locomotor skill performance(standing long jump), and object projection skill performance(throwing and kicking). Portuguese and U.S. children were divided into 2 age groups(6à9 and 10à13 years) for data analysis purposes. A twoàfactor oneàway analysis of covariance(ANOVA) was conducted with the Progressive Aerobic Cardiovascular Endurance Run, handgrip, standing long jump scores, kicking, and throwing speed(km/h) as dependent variables.Results: Results indicated that Portuguese children, irrespective of sex, presented better performances in locomotor and cardiorespiratory performance(standing long jump and Progressive Aerobic Cardiovascular Endurance Run) than U.S. children in both age bands. U.S. children outperformed Portuguese children during throwing and handgrip tests. Kicking tests presented gender differences: Portuguese boys and U.S. girls outperformed their internationally matched counterparts.Conclusion: Cultural differences in physical education curricula and sports participation may impact differences in motor competence and fitness development in these countries. 展开更多
关键词 CHILDREN Cross-cultural comparison HEALTH-RELATED FITNESS MOTOR COMPETENCE
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Hyperkalemia:Major but still understudied complication among heart transplant recipients 被引量:1
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作者 Jagmeet Singh Asim Kichloo +5 位作者 Navya Vipparla Michael Aljadah Michael Albosta Shakeel Jamal Sindhura Ananthaneni Sandesh Parajuli 《World Journal of Transplantation》 2021年第6期203-211,共9页
Hyperkalemia is a recognized and potentially life-threatening complication ofheart transplantation. In the complex biosystem created by transplantation,recipients are susceptible to multiple mechanisms for hyperkalemi... Hyperkalemia is a recognized and potentially life-threatening complication ofheart transplantation. In the complex biosystem created by transplantation,recipients are susceptible to multiple mechanisms for hyperkalemia which arediscussed in detail in this manuscript. Hyperkalemia in heart transplantationcould occur pre-transplant, during the transplant period, or post-transplant. Pretransplantcauses of hyperkalemia include hypothermia, donor heart preservationsolutions, conventional cardioplegia, normokalemic cardioplegia, continuouswarm reperfusion technique, and ex-vivo heart perfusion. Intra-transplant causesof hyperkalemia include anesthetic medications used during the procedure,heparinization, blood transfusions, and a low output state. Finally, post-transplantcauses of hyperkalemia include hemostasis and drug-induced hyperkalemia.Hyperkalemia has been studied in kidney and liver transplant recipients, butthere is limited data on the incidence, causes, management, and prevention inheart transplant recipients. Hyperkalemia is associated with an increased risk ofhospital mortality and readmission in these patients. This review describes thecurrent literature pertaining to the causes, pathophysiology, and treatment ofhyperkalemia in patients undergoing heart transplantation and focuses primarilyon post-heart transplantation. 展开更多
关键词 Transplantation CARDIOVASCULAR HYPERKALEMIA Heart transplant MEDICATION Management
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Association of non-alcoholic fatty liver disease with gallstone disease in the United States hospitalized patient population 被引量:1
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作者 Asim Kichloo Shantanu Solanki +10 位作者 Khwaja F Haq Dushyant Dahiya Beth Bailey Dhanshree Solanki Jagmeet Singh Michael Albosta Farah Wani Michael Aljadah Harshil Shah Hafiz Khan Syed-Mohammed Jafri 《World Journal of Gastrointestinal Pathophysiology》 2021年第2期14-24,共11页
BACKGROUND Gallstones and cholecystectomy have been proposed as risk factors for nonalcoholic fatty liver disease(NAFLD).The reason for this may be that both gallstones,as well as NAFLD share several risk factors with... BACKGROUND Gallstones and cholecystectomy have been proposed as risk factors for nonalcoholic fatty liver disease(NAFLD).The reason for this may be that both gallstones,as well as NAFLD share several risk factors with regards to their development.Currently,there is a lack of sufficient evidence showing an association between these clinical conditions.AIM To determine whether there is a meaningful association between gallstones and cholecystectomy with NAFLD.METHODS We queried the National Inpatient Sample database from the years 2016 and 2017 using International Classification of Diseases,10th revision,Clinical Modification diagnosis codes to identify hospitalizations with a diagnosis of gallstone disease(GSD)(includes calculus of gallbladder without cholecystitis without obstruction and acquired absence of gallbladder)as well as NAFLD(includes simple fatty liver and non-alcoholic steatohepatitis).Odds ratios(ORs)measuring the association between GSD(includes gallstones and cholecystectomy)and NAFLD were calculated using logistic regression after adjusting for confounding variables.RESULTS Out of 14294784 hospitalizations in 2016-2017,159259 were found to have NAFLD.The prevalence of NAFLD was 3.3%in patients with GSD and 1%in those without.NAFLD was prevalent in 64.3%of women with GSD as compared to 35.7%of men with GSD.After controlling for various confounders associated with NAFLD and GSD,multivariate-adjusted analysis showed that there was an association between NAFLD with gallstones[OR=6.32;95%confidence interval(CI):6.15-6.48]as well as cholecystectomy(OR=1.97;95%CI:1.93-2.01).The association between NAFLD and gallstones was stronger in men(OR=6.67;95%CI:6.42-6.93)than women(OR=6.05;95%CI:5.83-6.27).The association between NAFLD and cholecystectomy was stronger in women(OR=2.01;95%CI:1.96-2.06)than men(OR=1.85;95%CI:1.79-1.92).P value was less than 0.001 for all comparisons.CONCLUSION NAFLD is more prevalent in women with GSD than men.The association between NAFLD and cholecystectomy/gallstones indicates that they may be risk factors for NAFLD. 展开更多
关键词 GALLSTONES Non-alcoholic fatty liver disease GASTROENTEROLOGY HEPATOLOGY Non-alcoholic steatohepatitis CHOLECYSTECTOMY
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Avoiding hepatic metastasis naturally: Lessons from the cotton top tamarin(Saguinus oedipus )
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作者 Martin Tobi Peter Thomas Daniel Ezekwudo 《World Journal of Gastroenterology》 SCIE CAS 2016年第24期5479-5494,共16页
Much has been written about hepatic metastasis and animal models abound. In terms of the human experience, progress in treating this final common pathway, a terminal event of many human malignancies has been relativel... Much has been written about hepatic metastasis and animal models abound. In terms of the human experience, progress in treating this final common pathway, a terminal event of many human malignancies has been relatively slow. The current thinking is that primary prevention is best served by early detection of cancer and eradication of early stage cancers by screening. Some cancers spread early in their course and the role of screening may be limited. Until relatively recently there has not been a pathfinder model that makes the evasion of this unfortunate event a reality. This review discusses such an animal model and attempts to relate it to human disease in terms of intervention. Concrete proposals are also offered on how scientists may be able to intervene to prevent this deadly progression of the cancer process. 展开更多
关键词 COTTON TOP TAMARIN Hepatic metastasis Carcinoembryonic ANTIGEN FIBULIN-5 Common MARMOSET
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Vicarious Michael Addition
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作者 Dillip K.MOHANTY 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第4期561-564,共4页
C-H 债券能经历当在 nucleophile 的 mildconditions.Intramolecular 结合 H,撤退电子的引入的效果,和位阻 atalpha 位置下面的强碱和催化剂不在时的激活 withdouble 的双键便于的代理迈克尔加成反应(VMA ) 在 N-H 增加上的 C-H 增加... C-H 债券能经历当在 nucleophile 的 mildconditions.Intramolecular 结合 H,撤退电子的引入的效果,和位阻 atalpha 位置下面的强碱和催化剂不在时的激活 withdouble 的双键便于的代理迈克尔加成反应(VMA ) 在 N-H 增加上的 C-H 增加。由使用 VMA,官能团的高分叉复合,新奇分叉模式,可控制的密度和分发能为新奇 dendrimer 合成被想象。 展开更多
关键词 迈克尔加成反应 树枝体 碳-氢键活化作用 氢键 合成
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Factors associated with trigger digit following carpal tunnel release
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作者 Jacob Nosewicz Carla Cavallin +3 位作者 Chin-I Cheng Neli Ragina Arno W Weiss Anthony Zacharek 《World Journal of Orthopedics》 2019年第12期454-462,共9页
BACKGROUND Trigger digit is a common disorder of the hand associated with carpal tunnel syndrome.Carpal tunnel release(CTR)surgery may be a risk factor for trigger digit development;however,the association between sur... BACKGROUND Trigger digit is a common disorder of the hand associated with carpal tunnel syndrome.Carpal tunnel release(CTR)surgery may be a risk factor for trigger digit development;however,the association between surgical approach to CTR and postoperative trigger digit is equivocal.AIM To investigate patient risk factors for trigger digit development following either open carpal tunnel release(OCTR)or endoscopic carpal tunnel release(ECTR).METHODS This retrospective chart analysis evaluated 967 CTR procedures from 694 patients for the development of postoperative trigger digit.Patients were stratified according to the technique utilized for their CTR,either open or endoscopic.The development of postoperative trigger digit was evaluated at three time points:within 6 mo following CTR,between 6 mo and 12 mo following CTR,and after 12 mo following CTR.Firth’s penalized likelihood logistic regression was conducted to evaluate sociodemographic and patient comorbidities as potential independent risk factors for trigger digit.Secondary regression models were conducted within each surgical group to reveal any potential interaction effects between surgical approach and patient risk factors for the development of postoperative trigger digit.RESULTS A total of 47 hands developed postoperative trigger digit following 967 CTR procedures(4.9%).In total,64 digits experienced postoperative triggering.The long finger was most commonly affected.There was no significant difference between the open and endoscopic groups for trigger digit development at all three time points following CTR.Furthermore,there were no significant independent risk factors for postoperative trigger digit;however,within group analysis revealed a significant interaction effect between gender and surgical approach(P=0.008).Females were more likely to develop postoperative trigger digit than males after OCTR(OR=3.992),but were less likely to develop postoperative trigger digit than males after ECTR(OR=0.489).CONCLUSION Patient comorbidities do not influence the development of trigger digit following CTR.Markedly,gender differences for postoperative trigger digit may depend on surgical approach to CTR. 展开更多
关键词 Endoscopic CARPAL TUNNEL RELEASE Open CARPAL TUNNEL release Trigger DIGIT CARPAL TUNNEL syndrome Stenosing TENOSYNOVITIS
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COVID-19 pandemic and challenges in pediatric gastroenterology practice
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作者 Jamal Kriem Riad Rahhal 《World Journal of Gastroenterology》 SCIE CAS 2020年第36期5387-5394,共8页
The current coronavirus pandemic is imposing unpreceded challenges to the practice of pediatric gastroenterology.These are highlighted in their impact on performing aerosol-generating endoscopy procedures and the need... The current coronavirus pandemic is imposing unpreceded challenges to the practice of pediatric gastroenterology.These are highlighted in their impact on performing aerosol-generating endoscopy procedures and the need to accommodate longer room turnaround time for disinfection,ensuring appropriate and consistent safety measures for patients,staff and providers,and emphasizing the importance for screening patients for active coronavirus disease(COVID)infection before endoscopy when possible.Pediatric patients are less likely to exhibit severe COVID-related symptoms so survey-based screening would not be a sensitive measure to identify patients with active infections.To address the restrictions of patients coming for face to face clinic encounters,there has been rapid expansion of telehealth services in a very short time period with several difficulties encountered.To survive these challenges,pediatric gastroenterology practices need to adapt and accept flexibility in clinical operations with ongoing commitment to safety for patients and healthcare workers. 展开更多
关键词 CORONAVIRUS PANDEMIC PEDIATRIC GASTROENTEROLOGY ENDOSCOPY Screening TELEHEALTH
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