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169 articles for “cross-sectional study”
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Research ArticleOpen accessIn the abstractEstimating the Parameters of the Negative-Lindley Distribution using Broyden-Fletcher-Goldfarb-ShannoNaushad Mamode KhanProblem statement: The Maximum Likelihood Estimation (MLE) technique is the most efficient statistical approach to estimate parameters in a cross-sectional model. Often, MLE gives rise to a set of non-linear systems of equations that need to be solved iteratively using the Newton-Raphson technique. However, in some situations such as in the Negative-Lindley distribution where it involves more than one unknown … …Journal of Mathematics and Statistics, Vol. 7, Issue 1 · 29 Jan 2011 · 7,381 accessesView PDFCite
Research ArticleOpen accessIn the abstractHelicobacter pylori Colonization in Biopsies of the Adenotonsillectomy SpecimensM. J. Zahedi, S. Darvish Moghadam, M. Ahmadi Mosavi et al.Problem statement: Helicobacter pylori (H. pylori) is a microaerophilic, gram negative bacillus, which can cause peptic ulcer and gastric cancer. Recurrent infection with this agent is considered as one of the reasons for failure of peptic ulcer treatment. Some studies have reported colonization of H. pylori in dental plaques, tonsils and adenoid tissues. Therefore oral cavity could be the source … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 6,932 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrevalence and Correlates of PTSD among High School Students After the Earthquake Disaster in the City of Bam, IranHassan Ziaaddini, Nouzar Nakhaee, Kolsoom BehzadiEarthquake and its consequences have become recognized as a growing health problem in recent years in developing countries. On 26 December, 2003 at 5.26 Am, the town of Bam in the south eastern part of Iran suffered an earthquake of 6.3 on the Richter scale, killing more than 26000 people. This study was aimed to investigate the prevalence of PTSD … …American Journal of Applied Sciences, Vol. 6, Issue 1 · 31 Jan 2009 · 7,966 accessesView PDFCite
Research ArticleOpen accessIn the abstractNeosporosis in Sheep and Different Breeds of Goats from Southern Jordan: Prevalence and Risk Factors AnalysisAl-Majali A. N., Jawasreh K. I., Talafha H. A., Talafha A. Q.A cross sectional study was performed to investigate the epidemiology of Neospora caninum infection in Southern Jordan. A total of 320 sheep and 300 goats from 38 and 24, sheep and goat flocks, respectively, were randomly sampled and assayed for presence of antibodies against N. caninum. A structured pre-tested questionnaire was administered to collect information on flocks' health and management. … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 2 · 31 Dec 2008 · 7,875 accessesView PDFCite
Research ArticleOpen accessIn the abstractCo-expression of Apoptosis-Related Molecules on Activated CD8+ CD38+ T-cells is Associated with HIV-1 Disease ProgressionJosé W. Rodríguez, Luis A. Rodríguez, Griselle Font et al.CD8+ T cells play a major role in controlling HIV-1 infection through the release of soluble lytic and non-lytic antiviral factors. Their decrease or defective function contributes to the HIV-1 disease progression. HIV-1 disease progression has been associated with a remarkable increase of CD38 expression on CD8+ T-cells. It has been also documented that a significant distribution of HIV-specific CD8+T-cells … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 7,016 accessesView PDFCite
Research ArticleOpen accessIn the abstractValidity and Reliability of the Short Form- 36 Items Questionnaire as a Measure of Quality of Life in Elderly Iranian PopulationSeyed-Reza Eshaghi, Mohammad Arash Ramezani, Armindokht Shahsanaee, Arash PooyaThe utility of The SF-36 questionnaire for evaluation of health related quality of life was not clear in elderly people. The Cross-Sectional study was designed and Iranian version of The SF-36 was administered to random sample of 100 old subjects over 60 years old. Finding showed good internal consistency over 0.7 for all subscales of questionnaire. Convergent validity was obtained … …American Journal of Applied Sciences, Vol. 3, Issue 3 · 31 Mar 2006 · 7,963 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Incidence Rate of Carcinoid Tumors in Appendectomy Specimens in Iran 1993-2003Mahammad-Arash Ramezani, Mehdi Hayatbakhsh, Mohammad-Bagher Daneshtalab et al.Carcinoid tumors are the most common neoplasm of the appendix vermiform and appear to have increased in incidence in the past 20 years. In the cross sectional study 5048 appendectomy specimens at 10 years periods of year -1993 to 2003- were evaluated in pathology department. Twelve Carcinoid tumor of the appendix were identified (0.2%). There was female rate higher than … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 6,809 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordSocial Awareness and Knowledge of Parenteral Viral Hepatitis (B and C) Among Residences of Menoufia Governorate, Egypt: A Questionnaire-Based Field StudyWesam S Morad, Maha Elsabaawy, Mahmoud H AllamEgypt had led a unique successful campaign in treating and surveillance of the most prevalent viral infections. However, social awareness evaluation is an unmet need for viral eradication strategic plans. Assess the level of knowledge and awareness of the community about HCV and HBV infections. This community-based cross-sectional survey, was conducted between November 2018 and March 2019 in Menofia Governorate, … …American Journal of Infectious Diseases, Vol. 16, Issue 2 · 12 May 2020 · 6,969 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordVenire Reform-Assessing the State and Federal Efforts to Attain Fair, Cross-Sectional Representation in Jury PoolsThomas White, Ellen BaikProblem statement: The sixth amendment to the United States Constitution guarantees criminal defendants the right to be tried by an impartial jury of peers and the question of what constitutes an "impartial" jury has spawned constitutional controversies in the last several decades as the population of the United States became more ethnically and racially diverse. The Supreme Court has consistently … …Journal of Social Sciences, Vol. 6, Issue 1 · 31 Mar 2010 · 7,904 accessesView PDFCite