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Research ArticleOpen accessEvery word in the titleBayesian Analysis of Longitudinal Ordinal Data Using Non-Identifiable Multivariate Probit ModelsXiao ZhangMultivariate probit models have been explored foranalyzing longitudinal ordinal data. However, the inherent identification issuein multivariate probit models requires the covariance matrix of the underlyinglatent multivariate normal variables to be a correlation matrix and thushinders the development of efficient Bayesian sampling methods. It is knownthat non-identifiable models may produce Markov Chain Monte Carlo (MCMC)samplers with better convergence and mixing than … …Journal of Mathematics and Statistics, Vol. 18, Issue 1 · 14 Nov 2022 · 6,044 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCell Longevity of Yeast Saccharomyces cerevisiae by Clove Bud Extract Treatment May Occur in Sirtuin-Independent PathwayZahrah Qolbaina Ariybah, Rika Indri Astuti, Sri ListiyowatiAccumulation of free radicals causes cell damage that leads to a phenomenon called aging. Antioxidant application is one potential strategy to avoid the damage of free radical accumulation. Many reports resume that clove, one of Indonesia’s spices, contain high amount of antioxidant. Our previous research had proven that clove extract could extend longevity in yeast Saccharomyces cerevisiae. However, cellular mechanism … …OnLine Journal of Biological Sciences, Vol. 21, Issue 3 · 3 Aug 2021 · 6,659 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePharmacological Properties of Bioactive Extracts from the Rhizome of Aristolochia longa LAmal El Hamsas El Youbi, Dalila BoustaAristolochia longa is a medicinal plant well known in Moroccan folk medicine for its activity against constipation, intestinal infections and skin diseases. The present study was performed to evaluate in vitro and in vivo immunomodulatory and cytotoxic activities of aqueous and protein extracts of A. longa. The in vitro immunomodulatory results showed that aqueous extract at 0.1 mg/mL enhanced T-lymphocyte … …American Journal of Pharmacology and Toxicology, Vol. 15, Issue 1 · 21 Jul 2020 · 7,456 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleOvicide and Larvicide Activities of the Essential Oils Extracted from Polyalthia longifolia and Clausena anisata on Sitotroga cerealellaGuy Alain Alitonou, Jean Pierre Noudogbessi, Philippe Sessou et al.This work has objectives to study the chemical composition of volatile extracts obtained from leaves of Polyalthia longifolia and Clausena anisata and to evaluate their ovicide and larvicide effects by fumigation against Sitotroga cerealella, as alternative to the pesticides of synthesis. The analyses of the extracts by GC-MS showed that the essential oil of P. longifolia contains 57 compounds representing … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 19 Jul 2017 · 7,773 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleKinetic Motilities of Cryopreserved Bull Spermatozoa: Owing to the Effect of Eurycoma longifolia Jack Aqueous ExtractFalah Hasan Baiee, Abd Wahid Haron, Rosnina Haji Yusoff et al.This study was carried out to improve the kinetic motilities of frozen-thawed bull semen diluted with tris-based egg yolk diluent that was supplemented with Eurycoma longifolia jack aqueous extract. A total of 24 ejaculates were obtained from six cross-bred bulls using an electro-ejaculator. The extract of Eurycoma longifolia jack was distributed into three low doses and three high doses; cryopreserved … …American Journal of Animal and Veterinary Sciences, Vol. 12, Issue 2 · 16 Jun 2017 · 8,635 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStage Specificity of Eurycomanone Isolated from Eurycoma longifolia on Plasmodium falciparum CyclesEti Nurwening Sholikhah, Mahardika Agus Wijayanti, Ratna Asmah Susidarti et al.Eurycomanone is the most active compounds in the roots of Eurycoma longifolia and shown to have in vitro antiplasmodial activity. However, the stage of Plasmodium falciparum cycles which are sensitive to eurycomanone have not been investigated. This study was conducted to investigate stage specificity of eurycomanone at various stages of P. falciparum life cycles. Stage specificity of eurycomanone at various … …American Journal of Pharmacology and Toxicology, Vol. 11, Issue 1 · 16 Jan 2016 · 7,739 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSpline Estimator for Bi-Responses and Multi-Predictors Nonparametric Regression Model in Case of Longitudinal DataAdji Achmad Rinaldo Fernandes, I Nyoman Budiantara, Bambang Widjanarko Otok, SuhartonoNonparametric regression approach is used when the shape of the curve regression is unknown. The spline estimator approach for longitudinal data can accommodate the correlation between observations within the same subject, which is not found in the cross-section data, so that the autocorrelation assumption problem can be resolved. On the other hand, with bi-responses approach, it will accommodate any correlation … …Journal of Mathematics and Statistics, Vol. 11, Issue 2 · 8 Oct 2015 · 7,337 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA 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 accessEvery word in the titleIN VIVO ANTIPLASMODIAL ACTIVITY AND ACUTE TOXICITY OF STANDARDIZED EXTRACT OF EURYCOMA LONGIFOLIA JACK. ROOT TRADITIONALLY USED TO TREAT MALARIAEti Nurwening Sholikhah, Mahardika Agus Wijayanti, MustofaA series of studies has been conducted to prove the Eurycoma longifolia Jack. root as an antimalarial. However, the in vivo antiplasmodial activity of E. longifolia Jack. root standardized extract and its lethal dose 50% (LD50) values is unknown. In vivo antiplasmodial activity was conducted on Plasmodium berghei infected Swiss mice as malaria model with 4-day suppression methods. Sixty mice … …American Journal of Pharmacology and Toxicology, Vol. 9, Issue 1 · 27 Dec 2013 · 7,732 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAGENESIS OF PALMARIS LONGUS IN SOUTHERN OF IRAN: A POPULATION BASED STUDYHojjatollah Karimi-Jashni, Karamatollah Rahmanian, Abdolreza Sotoodeh JahromiThe Palmaris Longus (PL) muscle is a weak flexor muscle with wide prevalence of agenesis in world. This study was conducted to determine the prevalence of agenesis of PL in a southern population of Iran. A total of 732 subjects aged 7-86 years were selected randomly. The participants were primarily asked to do the standard test (Schaeffer’s test). Four tests … …OnLine Journal of Biological Sciences, Vol. 14, Issue 1 · 23 Dec 2013 · 7,204 accessesView PDFCite