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Do Community-Based Programs Help to Improve HIV Treatment and Health Outcomes? A Review of the Literature
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作者 Ugo Amanyeiwe Suzanne Leclerc-Madlala Hannah Gardi 《World Journal of AIDS》 2014年第3期311-320,共10页
Increased availability of antiretroviral treatment for HIV makes the goal of universal access attainable. However, in most resource constrained settings where existing health systems are?largely dysfunctional, major b... Increased availability of antiretroviral treatment for HIV makes the goal of universal access attainable. However, in most resource constrained settings where existing health systems are?largely dysfunctional, major barriers to achieving this goal remain. While treatments with antiretroviral drugs (ART) are the focal point of HIV management, it is increasingly recognized that ART alone will not be sufficient to adequately deal with the lifelong consequences of the disease. In addition, the current global economic downturn will continue to impact on funding for HIV care and support, making the search for sustainable solutions more urgent. This article reviews the current evidence base on the impact of community-based programs on HIV/AIDS treatment and general health outcomes, as well as their contribution to ensuring sustained care for HIV-positive people. Our findings suggest that these programs overall have a positive impact on various dimensions of HIV treatment and care, and make a significant contribution to health and HIV outcomes. The authors argue that better use of community platforms for HIV treatment and care programs could be critical for attaining desired goals and should be prioritized at all levels of program design, implementation, and monitoring and evaluation. 展开更多
关键词 HIV/AIDS ARV Treatment CARE community-based programs
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Feeding rumen-protected choline during the periconceptional period programs postnatal phenotype of suckled beef calves
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作者 Masroor Sagheer McKenzie L.J.Haimon +9 位作者 Samuel Hincapie Montoya Daniella Heredia Federico Tarnonsky Mauro E.Venturini Angella Gonella-Diaza Nicolas DiLorenzo Joseph W.McFadden Gabriela Dalmaso de Melo Ky G.Pohler Peter J.Hansen 《Journal of Animal Science and Biotechnology》 2025年第4期1696-1703,共8页
Background Supplementation of choline chloride in culture medium programs the preimplantation bovine embryo to increase weaning weight of the resultant calf.Here,it was hypothesized that similar programming actions of... Background Supplementation of choline chloride in culture medium programs the preimplantation bovine embryo to increase weaning weight of the resultant calf.Here,it was hypothesized that similar programming actions of choline can be induced by feeding rumen-protected choline(RPC)to beef cows during the periconceptional period.Results A preliminary experiment was conducted to determine changes in circulating concentrations of choline and its metabolites after RPC supplementation.Suckled beef cows were individually fed 0,30,60,and 90 g of RPC(i.e.,0,8.6,17.3 and 25.9 g choline chloride)and blood samples were collected at random times after feeding.There were no differences in plasma concentrations of choline or its metabolites between groups.In the second experiment,effects of feeding 60 g/d RPC from d-1 to 7 relative to timed artificial insemination were examined for suckled beef cows.Feeding RPC did not affect pregnancy or calving rates,pregnancy losses,plasma concentrations of pregnancy-associated glycoproteins,gestation length or calf birth weight.Calves from RPC fed dams were lighter than control calves at~118 days of age(range 75–150;age included in the statistical model)and at weaning at~248 days of age.There was no effect of treatment on hip height at~118 days of age although there was a trend for RPC calves to be shorter at weaning.Weight/height ratio was lower for RPC than control at both 118 and 248 days of age.Treatment did not affect testis weight at~118 days of age.Conclusions Supplementation of RPC during the periconceptional period programmed development to alter calf phenotype in the postnatal period.The net result,reduced body weight,was the opposite of the phenotype caused by the addition of choline to embryo culture medium. 展开更多
关键词 Beef cattle CHOLINE PREGNANCY programMING
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National prevention programs and their effects on gastric cancer Incidence and mortality in East Asian countries
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作者 Min Cai Ruiqi Xia +2 位作者 Ziyang Wang Ruoxin Zhang Wanghong Xu 《Cancer Biology & Medicine》 2025年第5期488-495,共8页
Gastric cancer(GC)remains one of the most common cancers and leading causes of cancer deaths globally1with 60.0%of cases and 56.6%of deaths occurring in East Asia.South Korea and Japan have conducted nationwide GC scr... Gastric cancer(GC)remains one of the most common cancers and leading causes of cancer deaths globally1with 60.0%of cases and 56.6%of deaths occurring in East Asia.South Korea and Japan have conducted nationwide GC screening programs for decades but with essential differences in strategies,organization,and coverage2. 展开更多
关键词 screening programs gastric cancer gc remains national prevention programs East Asian countries gastric cancer incidence MORTALITY Japan South Korea
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Usefulness of cardiac rehabilitation programs among older patients undergoing transcatheter aortic valve replacement:how should we do it?
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作者 Vicente Arrarte Esteban Raquel Campuzano Ruiz +4 位作者 Rosa Fernández Olmo Armando Oterino Pablo Diez-Villanueva Miryam González Cebrián Lucía Matute-Blanco 《Journal of Geriatric Cardiology》 2025年第9期818-827,共10页
Severe aortic stenosis has increased exponentially as a result of the aging of the population.Transcatheter aortic valve replacement(TAVR)procedures increase by 20%-30%per year in Spain.Referred patients are increasin... Severe aortic stenosis has increased exponentially as a result of the aging of the population.Transcatheter aortic valve replacement(TAVR)procedures increase by 20%-30%per year in Spain.Referred patients are increasingly older,have comorbidities,and frailty.TAVR cardiac rehabilitation(CR)programs significantly improve both functional capacity and quality of life of patients.However,there are no guidelines on how to carry out them and few elderly patients are referred to CR.Furthermore,mortality in women who undergo TAVR is higher than in men and even fewer are referred to CR programs.Multidisciplinary patient care,including comorbidities and frailty,is essential.It is necessary to ensure exquisite continuity of care during TAVR,CR,and the rest of the patient's life.Telerehabilitation could be an option in some lower-risk patients to include more patients in CR programs after TAVR,given the high demand.This article reviews the evidence on why CR should be performed in post-TAVR patients and proposes a practical and novel approach to the care process and the recommended aspects and components of the CR program. 展开更多
关键词 COMORBIDITIES TELEREHABILITATION severe aortic stenosis older patients cardiac rehabilitation cr programs transcatheter aortic valve replacement FRAILTY aortic valve replacement tavr procedures
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Community-based obesity prevention initiatives in aboriginal communities: The experience of the eat well be active community programs in South Australia
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作者 Annabelle Wilson Michelle Jones +1 位作者 Janet Kelly Anthea Magarey 《Health》 2012年第12期1500-1508,共9页
Childhood obesity is a growing concern world-wide, and obesity rates are higher in certain groups in the developed world, including Australian Aboriginal people. Community-based obesity prevention interventions (CBOPI... Childhood obesity is a growing concern world-wide, and obesity rates are higher in certain groups in the developed world, including Australian Aboriginal people. Community-based obesity prevention interventions (CBOPI) can help to address obesity, however the approach of such programs to reach diverse groups, including Aboriginal people, must be considered. This paper considers one mainstream1 CBOPI, the eat well be active (ewba) Community Programs in South Australia, which was delivered in two communities and sought to reach Aboriginal people as part of the overall program. This paper considers how well this approach was received by the Aboriginal people living and working in those communities. Semi-structured interviews were conducted with nine Aboriginal workers who had some connection to the ewba program, and seven ewba project staff. Qualitative data analysis was performed and factors found to affect how well the program was received by Aboriginal people include relationships, approach and project target group, including geographical area. A different response was observed in the two communities, with a more positive response being observed in the community where more relationships were developed between ewba and Aboriginal staff. For any CBOPI seeking to work with Aboriginal (or other Indigenous) communities, it is vital to consider and plan how the program will meet the needs and preferences of Aboriginal people in all stages of the project, in order to reach this group. 展开更多
关键词 Obesity Prevention ABORIGINAL community-based INTERVENTION Indigenous Qualitative
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Research and Practice of Cardiopulmonary Rehabilitation Training Programs
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作者 Na Yan Maiding He +9 位作者 Jinyue Jiang Juan Luo Ping Zhan Xichan Wang Xia Gao Jianzhu Wang Na Yin Fang Ye Jinghua Yu Shiying Zhang 《World Journal of Cardiovascular Diseases》 CAS 2024年第9期557-566,共10页
In today’s society, the incidence of cardiopulmonary diseases is increasing annually, seriously affecting patients’ quality of life. Therefore, developing a scientific and effective rehabilitation training program i... In today’s society, the incidence of cardiopulmonary diseases is increasing annually, seriously affecting patients’ quality of life. Therefore, developing a scientific and effective rehabilitation training program is of great significance. This study first analyzes the theoretical basis of cardiopulmonary rehabilitation training, including the effects of aerobic exercise, interval training, and strength training on cardiopulmonary function. Based on this, a comprehensive rehabilitation training program is designed, which includes personalized training plans, comprehensive interventions, multidisciplinary collaboration, patient education, and regular follow-up visits. The cardiopulmonary rehabilitation training plan developed in this study has certain scientific practicability, which provides a theoretical basis for cardiopulmonary rehabilitation training, and also provides a reference for medical institutions, rehabilitation centers and communities, which is helpful for promotion and application to a wider range of patients with cardiopulmonary diseases. 展开更多
关键词 Cardiopulmonary Function Rehabilitation Training program Aerobic Exercise Interval Training
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Does community-based health insurance affect lifestyle and timing of treatment seeking behavior?Evidence from Ethiopia
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作者 Zecharias Fetene Anteneh Anagaw D.Mebratie +2 位作者 Zemzem Shigute Getnet Alemu Arjun S.Bedi 《Global Health Journal》 2024年第2期83-90,共8页
Objectives This paper aims to investigate the effects of enrollment in the Ethiopian community-based health insurance(CBHI)scheme on household preventive care activities and the timing of treatment-seeking behavior fo... Objectives This paper aims to investigate the effects of enrollment in the Ethiopian community-based health insurance(CBHI)scheme on household preventive care activities and the timing of treatment-seeking behavior for illness symptoms.There is growing concern about the financial sustainability of CBHI schemes in developing countries.However,few empirical studies have identified potential contributors,including ex-ante and ex-post moral hazards.Methods We implement a household fixed-effect panel data regression model,drawing on three rounds of household survey data collected face to face in districts where CBHI scheme is operational and in districts where it is not operational in Ethiopia.Results The findings show that enrolment in CBHI does not significantly influence household behaviour regarding preventive care activities such as water treatment before drinking and handwashing before meals.However,CBHI significantly increases delay in treatment-seeking behaviour for diseases symptoms.Particularly,on average,we estimate about 4-6 h delay for malaria symptoms,a little above 4 h for tetanus,and 10-11 h for tuberculosis among the insured households.Conclusions While there is evidence that CBHI improve the utilization of outpatient or primary care services,our study suggests that insured members may wait longer before visiting health facilities.This delay could be partly due to moral hazard problems,as insured households,particularly those from rural areas,may consider the opportunity costs associated with visiting health facilities for minor symptoms.Overall,it is essential to identify the primary causes of delays in seeking medical services and implement appropriate interventions to encourage insured individuals to seek early medical attention. 展开更多
关键词 community-based health insurance Financial sustainability Preventive care Treatment-seeking behavior Household fixed effect Ethiopia
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A Class of Smoothing-regularization Methods to Mathematical Programs with Vanishing Constraints
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作者 HU Qingjie MA Lili CHEN Yu 《数学进展》 CSCD 北大核心 2024年第5期953-973,共21页
this paper,we propose a class of smoothing-regularization methods for solving the mathematical programming with vanishing constraints.These methods include the smoothing-regularization method proposed by Kanzow et al.... this paper,we propose a class of smoothing-regularization methods for solving the mathematical programming with vanishing constraints.These methods include the smoothing-regularization method proposed by Kanzow et al.in[Comput.Optim.Appl.,2013,55(3):733-767]as a special case.Under the weaker conditions than the ones that have been used by Kanzow et al.in 2013,we prove that the Mangasarian-Fromovitz constraint qualification holds at the feasible points of smoothing-regularization problem.We also analyze that the convergence behavior of the proposed smoothing-regularization method under mild conditions,i.e.,any accumulation point of the stationary point sequence for the smoothing-regularization problem is a strong stationary point.Finally,numerical experiments are given to show the efficiency of the proposed methods. 展开更多
关键词 mathematical programs with vanishing constraints smoothing-regularization method VC-MFCQ strong stationary point
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Interleukin-17A facilitates tumor progression via upregulating programmed death ligand-1 expression in hepatocellular carcinoma 被引量:1
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作者 Zhong-Xia Yang Li-Ting Zhang +2 位作者 Xiao-Jun Liu Xue-Bin Peng Xiao-Rong Mao 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第1期176-198,共23页
BACKGROUND Hepatocellular carcinoma(HCC)is an inflammation-associated tumor with a dismal prognosis.Immunotherapy has become an important treatment strategy for HCC,as immunity is closely related to inflammation in th... BACKGROUND Hepatocellular carcinoma(HCC)is an inflammation-associated tumor with a dismal prognosis.Immunotherapy has become an important treatment strategy for HCC,as immunity is closely related to inflammation in the tumor microenvir-onment.Inflammation regulates the expression of programmed death ligand-1(PD-L1)in the immunosuppressive tumor microenvironment and affects im-munotherapy efficacy.Interleukin-17A(IL-17A)is involved in the remodeling of the tumor microenvironment and plays a protumor or antitumor role in different tumors.We hypothesized that IL-17A participates in tumor progression by affe-cting the level of immune checkpoint molecules in HCC.The upregulation of PD-L1 expression in HCC cells by IL-17A was assessed by reverse transcription PCR,western blotting,and flow cytometry.Mechanistic studies were conducted with gene knockout models and pathway inhibitors.The function of IL-17A in immune evasion was explored through coculture of T cells and HCC cells.The effects of IL-17A on the malignant biological behaviors of HCC cells were evaluated in vitro,and the antitumor effects of an IL-17A inhibitor and its synergistic effects with a PD-L1 inhibitor were studied in vivo.RESULTS IL-17A upregulated PD-L1 expression in HCC cells in a dose-dependent manner,whereas IL-17A receptor knockout or treatment with a small mothers against decapentaplegic 2 inhibitor diminished the PD-L1 expression induced by IL-17A.IL-17A enhanced the survival of HCC cells in the coculture system.IL-17A increased the viability,G2/M ratio,and migration of HCC cells and decreased the apoptotic index.Cyclin D1,VEGF,MMP9,and Bcl-1 expression increased after IL-17A treatment,whereas BAX expression decreased.The combination of IL-17A and PD-L1 inhibitors showed synergistic antitumor efficacy and increased cluster of differentiation 8+T lymphocyte infiltration in an HCC mouse model.CONCLUSION IL-17A upregulates PD-L1 expression via the IL-17A receptor/phosphorylation-small mothers against decapenta-plegic 2 signaling pathway in HCC cells.Blocking IL-17A enhances the therapeutic efficacy of PD-L1 antibodies in HCC in vivo. 展开更多
关键词 INTERLEUKIN-17A programmed death ligand-1 Interleukin-17A receptor Small mothers against decapentaplegic 2 Hepatocellular carcinoma IMMUNOTHERAPY
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Community-Based Hepatitis B Campaign in Asian Americans
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作者 Chul S. Hyun Soonsik Kim +1 位作者 Sarah Hyun Joseph McMenamin 《International Journal of Clinical Medicine》 CAS 2024年第9期389-412,共24页
Chronic hepatitis B (CHB) disproportionately affects minority groups in the US, particularly Asian Americans, with numerous factors contributing to this disparity. Of the 2.4 million people living with chronic HBV in ... Chronic hepatitis B (CHB) disproportionately affects minority groups in the US, particularly Asian Americans, with numerous factors contributing to this disparity. Of the 2.4 million people living with chronic HBV in the US, 60% are Asian American. Many are unaware of their status and lack access to proper clinical care, with less than ten percent receiving necessary antiviral treatment. Barriers to screening and care include lack of disease awareness, language and cultural barriers, and financial constraints. Additionally, healthcare providers and systems in the US often overlook the importance of CHB, leading to inadequate care. In response, the Center for Viral Hepatitis (CVH) has implemented a community-based outreach program over the past sixteen years, employing a multifaceted approach involving all sectors of society and various organizations to combat health disparities in CHB. This grassroots campaign has proven highly effective, leveraging CVH’s leadership in spearheading numerous collaborative activities with community members, healthcare professionals, and policymakers. We have summarized the key points of CVH's efforts and their significance in combating CHB-related health disparities. The CHB Screening and Awareness Campaign, tailored to the Asian American community, serves as a successful model for increasing CHB screening, linkage-to-care, and addressing socio-cultural barriers and health literacy. Insights from these outreach programs have guided the development of culturally relevant resources and education initiatives. These findings suggest that such community-driven approaches are essential for addressing health disparities. The strategies and outcomes of CVH’s efforts can inform future health initiatives for other minority communities in the US and globally. 展开更多
关键词 Chronic Hepatitis B (CHB) Hepatitis B Virus (HBV) Health Disparity Health Inequity Asian Americans Cultural Competence in Healthcare community-based Screening Linkage-to-Care (LTC)
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Women Awareness on the Importance of Agriculture Technologies Using ICT-Based Training Programs
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作者 Tharwa Mustafa El-Kholi Saneya Mohamed El-Neshawy 《Journal of Agricultural Science and Technology(A)》 2024年第2期39-45,共7页
Awareness policy intended to contribute to changing rural women realities to urgent needs of information and gain knowledge was to be demonstrated through in-depth information and communication technology-based(ICTs-b... Awareness policy intended to contribute to changing rural women realities to urgent needs of information and gain knowledge was to be demonstrated through in-depth information and communication technology-based(ICTs-based)training program that focused on the importance of advanced agricultural technologies in the production chain in developing countries like Egypt through access and use of the ICTs.Women are becoming well trained on the detailed steps of improved technologies applied in supply chain.Their increased awareness of the necessity of quality management to be followed during their work in the postharvest handling system helped them to produce high-quality products to meet the export requirements of foreign markets and add value to the export quality.Women have been able to reduce the extremely high losses that occurred due to improper handling in particular.The outcomes of proper and healthy procedures,precautions and personal protection were gained by rural women and technicians working in the supply chain.Moreover,women themselves became more confident in their know-how and more comfortable in transgressing cultural norms that inhibited their progress. 展开更多
关键词 Rural women gender research training program ICTs policy AWARENESS
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Impacts of forest plantation programs on sectoral CO_(2) emissions regionally in New Zealand
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作者 Saeed Solaymani Andrew Dunningham 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第6期13-28,共16页
Investing in projects that support environmental benefits,such as tree harvesting,has the potential to reduce air pollution levels in the atmosphere in the future.However,this kind of investment may increase the curre... Investing in projects that support environmental benefits,such as tree harvesting,has the potential to reduce air pollution levels in the atmosphere in the future.However,this kind of investment may increase the current level of emissions.Therefore,it is necessary to estimate how much the policy affects the current level of CO_(2) emissions.This makes sure the policy doesn’t increase the level of CO_(2) emis-sions.This study aims to analyze the effect of the One Bil-lion Trees program on CO_(2) emissions in New Zealand by employing the 2020 input–output table analysis.This inves-tigation examines the direct and indirect effects of policy on both the demand and supply sides across six regions of New Zealand.The results of this study for the first year of plantation suggest that the policy increases the level of CO_(2) emissions in all regions,especially in the Waikato region.The direct and indirect impact of the policy leads to 64 kt of CO_(2) emissions on the demand side and 270 kt of CO_(2) emis-sions on the supply side.These lead to 0.19 and 0.74%of total CO_(2) emissions being attributed to investment shocks.Continuing the policy is recommended,as it has a low effect on CO_(2) emissions.However,it is crucial to prioritize the use of low-carbon machinery that uses fossil fuels during the plantation process. 展开更多
关键词 Regional input–output analysis Forest investment program Sectoral CO_(2) emissions Environmental policies Supply-side policy Demand-side policy
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Does enhanced recovery after surgery programs improve clinical outcomes in liver cancer surgery?
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作者 Belinda Sánchez-Pérez JoséM Ramia 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第2期255-258,共4页
Enhanced recovery after surgery(ERAS)programs have been widely applied in liver surgery since the publication of the first ERAS guidelines in 2016 and the new recommendations in 2022.Liver surgery is usually performed... Enhanced recovery after surgery(ERAS)programs have been widely applied in liver surgery since the publication of the first ERAS guidelines in 2016 and the new recommendations in 2022.Liver surgery is usually performed in oncological patients(liver metastasis,hepatocellular carcinoma,cholangiocarcinoma,etc.),but the real impact of liver surgery ERAS programs in oncological outcomes is not clearly defined.Theoretical advantages of ERAS programs are:ERAS decreases postoperative complication rates and has been demonstrated a clear relationship between complications and oncological outcomes;a better and faster posto-perative recovery should let oncologic teams begin chemotherapeutic regimens on time;prehabilitation and nutrition actions before surgery should also improve the performance status of the patients receiving chemotherapy.So,ERAS could be another way to improve our oncological results.We will discuss the literature about liver surgery ERAS focusing on its oncological implications and future investigations projects. 展开更多
关键词 Enhanced recovery after surgery programs Liver surgery Key components Long-term oncological outcomes Enhanced recovery after surgery compliance
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Relationship between Helicobacter pylori infection and programmed death-ligand 1 in gastric cancer:A meta-analysis 被引量:1
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作者 Hong-Chang Yang Cheng-Feng Fu +3 位作者 Li-Jun Qiao Gen-He Long Li-Fen Yang Biao Yao 《World Journal of Clinical Oncology》 2025年第4期280-290,共11页
BACKGROUND Gastric cancer(GC)is one of the most common malignancies worldwide,and Helicobacter pylori(HP)infection is a well-established risk factor for its development.Programmed death-ligand 1(PD-L1)expression is a ... BACKGROUND Gastric cancer(GC)is one of the most common malignancies worldwide,and Helicobacter pylori(HP)infection is a well-established risk factor for its development.Programmed death-ligand 1(PD-L1)expression is a crucial biomarker for predicting the efficacy of immune checkpoint inhibitors in cancer treatment.While HP infection and PD-L1 expression in GC may be linked,the relationship between them remains unclear,in part because there have been conflicting results reported from various studies.AIM To perform a meta-analysis to assess the relationship between HP and PD-L1 expression in patients with GC.METHODS A systematic literature review was conducted using PubMed,Embase,Cochrane Library,and Web of Science databases.Observational studies that examined the association between HP infection and PD-L1 expression in patients with GC were included.Odds ratios and 95%confidence intervals were calculated to estimate the association.Heterogeneity was assessed using Cochrane’s Q test and I²statistic.A random-effects model was used due to significant heterogeneity across studies.RESULTS Fourteen studies involving a total of 3069 patients with GC were included.The pooled analysis showed a significant association between HP infection and increased PD-L1 expression in GC tissues(odd ratio=1.69,95%confidence interval:1.24-2.29,P<0.001,I^(2)=59%).Sensitivity analyses confirmed the robustness of these findings.Subgroup analyses did not show significant variation based on geographic region,sample size,or method of PD-L1 assessment.Publication bias was minimal,as shown by funnel plots and Egger’s regression test.CONCLUSION HP infection is associated with increased PD-L1 expression in GC,suggesting that HP status may influence the response to programmed cell death protein 1/PD-L1 blockade therapy. 展开更多
关键词 Helicobacter pylori Gastric cancer programmed cell death protein 1/programmed death-ligand 1 Immune checkpoint blockade therapy PATHOGENESIS
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Glia-to-neuron reprogramming to the rescue?
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作者 Jack W.Hickmott Cindi M.Morshead 《Neural Regeneration Research》 SCIE CAS 2025年第5期1395-1396,共2页
Over the last two decades,the dogma that cell fate is immutable has been increasingly challenged,with important implications for regenerative medicine.The brea kth rough discovery that induced pluripotent stem cells c... Over the last two decades,the dogma that cell fate is immutable has been increasingly challenged,with important implications for regenerative medicine.The brea kth rough discovery that induced pluripotent stem cells could be generated from adult mouse fibroblasts is powerful proof that cell fate can be changed.An exciting extension of the discovery of cell fate impermanence is the direct cellular reprogram ming hypothesis-that terminally differentiated cells can be reprogrammed into other adult cell fates without first passing through a stem cell state. 展开更多
关键词 programming PASSING proof
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An Approach to Detect Structural Development Defects in Object-Oriented Programs
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作者 Maxime Seraphin Gnagne Mouhamadou Dosso +1 位作者 Mamadou Diarra Souleymane Oumtanaga 《Open Journal of Applied Sciences》 2024年第2期494-510,共17页
Structural development defects essentially refer to code structure that violates object-oriented design principles. They make program maintenance challenging and deteriorate software quality over time. Various detecti... Structural development defects essentially refer to code structure that violates object-oriented design principles. They make program maintenance challenging and deteriorate software quality over time. Various detection approaches, ranging from traditional heuristic algorithms to machine learning methods, are used to identify these defects. Ensemble learning methods have strengthened the detection of these defects. However, existing approaches do not simultaneously exploit the capabilities of extracting relevant features from pre-trained models and the performance of neural networks for the classification task. Therefore, our goal has been to design a model that combines a pre-trained model to extract relevant features from code excerpts through transfer learning and a bagging method with a base estimator, a dense neural network, for defect classification. To achieve this, we composed multiple samples of the same size with replacements from the imbalanced dataset MLCQ1. For all the samples, we used the CodeT5-small variant to extract features and trained a bagging method with the neural network Roberta Classification Head to classify defects based on these features. We then compared this model to RandomForest, one of the ensemble methods that yields good results. Our experiments showed that the number of base estimators to use for bagging depends on the defect to be detected. Next, we observed that it was not necessary to use a data balancing technique with our model when the imbalance rate was 23%. Finally, for blob detection, RandomForest had a median MCC value of 0.36 compared to 0.12 for our method. However, our method was predominant in Long Method detection with a median MCC value of 0.53 compared to 0.42 for RandomForest. These results suggest that the performance of ensemble methods in detecting structural development defects is dependent on specific defects. 展开更多
关键词 Object-Oriented programming Structural Development Defect Detection Software Maintenance Pre-Trained Models Features Extraction BAGGING Neural Network
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Cultural Sensitivity of a Community-Based Falls Prevention Program Targeting Older Arab American
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作者 Lan Yao Suha A. Kridli 《Open Journal of Nursing》 2018年第11期835-847,共13页
Falls are a frequent and costly cause of injuries and functional decline in the elderly. Tai Chi is a cost-effective strategy for preventing falls in older adults. Many senior centers have introduced Tai Chi programs ... Falls are a frequent and costly cause of injuries and functional decline in the elderly. Tai Chi is a cost-effective strategy for preventing falls in older adults. Many senior centers have introduced Tai Chi programs to increase mobility and decrease the risk of falls. However, the practice has yet to be widely disseminated to ethnic minorities who are not culturally connected to Tai Chi. This paper describes implementation barriers and recruitment and retention challenges of Arab American participants in a Tai Chi intervention-based health promotion program, including issues related to community organization and staffing, recruitment and retention, need for building relationships, need for translation and interpreters, and cultural barriers & misconceptions. Understanding and paying adequate attention to these challenges may help facilitate in planning other health promotion interventions targeting Arab American population. 展开更多
关键词 ELDERLY Care FALLS ARABIC Culturally Sensitive Prevention community-based Intervention program
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