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121 articles for “Non-Response”
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Research ArticleOpen accessIn the abstractA MIXTURE DROPOUT MECHANISM IN A LONGITUDINAL STUDY WITH TWO TIME POINTS: A METHADONE STUDYZohreh Toghrayee, Parvin Jalili, Heng Chin Low, Ardavan TaghvaOne of the most important issues that confront statisticians in longitudinal studies is dropouts. A variety of reasons may lead to withdrawal from a study and produce two different missingness mechanisms, namely, missing at random and non-ignorable dropouts. Nevertheless, none of these mechanisms is tenable in most studies. In addition, it may be that not all of dropouts are nonignorable. … …Journal of Mathematics and Statistics, Vol. 10, Issue 3 · 26 Apr 2014 · 6,724 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Efficient Fault Tolerant Scheduling Approach for Computational GridP. Keerthika, N. KasthuriGrid computing serves as an important technology to facilitate distributed computation computational grids solve large scale scientific problems using heterogeneous geographically distributed resources. Problems like dispatching and scheduling of tasks are considered as major issues in computational grid environment. The Grid Scheduler must select proper resources for executing the tasks with less response time. There are various reasons such as … …American Journal of Applied Sciences, Vol. 9, Issue 12 · 5 Jan 2013 · 6,995 accessesView PDFCite
Research ArticleOpen accessIn the abstractRecent Clinical Advancement of the Effects of Parathyroid Analogues on Fracture Healing in Humans: A Review of LiteratureWen Wei Gerard Ee, Wen Liang Joel Lau, Harish Sivasubramanian, Diarmuid MurphyProblem statement: Numerous animal studies have shown that administration of Parathyroid Hormone (PTH) or a related analogue promotes callus formation and bone union. However, there has yet to be sufficient evidence in human subjects to justify the use of PTH or related analogues in promoting fracture healing. The purpose of this paper is to (1) review all literature involving the … …Current Research in Medicine, Vol. 3, Issue 2 · 27 Aug 2012 · 7,338 accessesView PDFCite
Research ArticleOpen accessIn the abstractFluctuation of Brain Tissue Oxygen Partial Pressure: A Biochemical Landmark in the Arctic Ground Squirrel's Spontaneous ArousalYi Long Ma, Shu Fen Wu, Lawrence K. DuffyHibernation in the Arctic ground Squirrel (AGS) is a regulated, adaptive response to arctic environmental conditions. Problem statement: Regional brain Blood Flow (rCBF) has been observed to increase dramatically during arousal in hibernators. However, the real time dynamic change in PtO2 during arousal has not been studied, we hypothesized that PtO2 is Interdependent of Tbrain and a key component in … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 4 · 1 Feb 2012 · 7,601 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment of Empirical Prediction Formula for Penetration of Ogive Nose Hard Missile into Concrete TargetsAhmad Mujahid Ahmad Zaidi, Qadir Bux Alias Imran Latif, Ismail Abdul Rahman, Muhammad Yusof IsmailProblem statement: Concrete is basic construction material used for most of structures. However, the typical vital structures have to be designed as self-protective such as nuclear plants, power plants, weapon industries, weapons storage places and water retaining structures, against any threats like natural disaster tragedy incident or intentionally produced by horrible incidents such as dynamic loading, incident occurs in nuclear … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 8,448 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Electrochemical Investigation of the Redox Properties of Murexide in Aqueous and Non-Aqueous MediaHossnia S. MohranKnowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken. It is suggested … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,738 accessesView PDFCite
Research ArticleOpen accessIn the abstractHIV/AIDS Knowledge and Sexual Behavior Among Junior Secondary School Students in South AfricaKarl Peltzer, Supa PromtussananonThe aim of the study was to assess HIV/AIDS knowledge and sexual behaviour among jun-ior Secondary School students in South Africa using a cross-sectional survey design. The sample con-sisted of 3150 students, with 44.1% were male and 55.9% female students. Their mean age was 15.75 yrs (SD=1.61) ranging from 13 to 24 years chosen from 150 schools in South Africa. … …Journal of Social Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 7,770 accessesView PDFCite
Review ArticleOpen accessIn the abstractSocial Media Usage and its Implications on Mental Health a ReviewPuneet Kaur, Deepika Chaudhary, Jaiteg SinghWith more homes, businesses, and people having access to the Internet recently, the usage of social media and social networking websites has expanded significantly. Multiple social media platforms are available and more people from the public, companies, non-profits, and other groups are utilizing them. Therefore, online engagement is now a common aspect of daily life for a population of billions … …Journal of Computer Science, Vol. 21, Issue 2 · 21 Jan 2025 · 8,106 accessesView PDFCite
Research ArticleOpen accessIn the abstractDrop Weight Impact Behaviour of Tube Filled Polymeric Syntactic FoamYash M. Chordiya, Manmohan Dass GoelAccidents are misfortune which could happen to anyone at any place at any time and it affects the vehicle as well as the occupants. Continuous research is being carried out for improving the crashworthiness of the vehicles with different materials. These materials plays important aspect in energy absorption and impact resistant design of the structure, wherein, presence of these materials … …International Journal of Structural Glass and Advanced Materials Research, Vol. 3, Issue 1 · 28 May 2019 · 7,605 accessesView PDFCite
Research ArticleOpen accessIn the abstractSimulation Study for Evaluating a New Three Stages Procedure for Selecting the Right Multivariate Regression ModelAli Hussein AL-MarshadiProblem statement: This article considers the analysis of multivariate regression experiment that is used frequently in variety of applications research such as psychiatric epidemiologic studies. Our study concerned with multivariate regression model in which the responses were correlated in particular ways for both standard and non-standard multivariate model structures. Our objective is to find reliable procedure that can be used … …Current Research in Biostatistics, Vol. 1, Issue 1 · 30 Jun 2010 · 7,814 accessesView PDFCite