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196 articles for “survival”
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Research ArticleOpen accessIn the abstractA Philosophical Analysis of the Challenges of Science and Technology in Contemporary Africa: The Nigerian ExperimentAkinnawonu Benson MonehinScience and technology engendered unexpected social, political and health related problems. These included corrupt and dubious utilization of information and communication technology, environmental pollution and protection and depletion of the ozone layer which endangered human health. This sstudy examined the positive and negative implications of science and technology in Africa using Nigeria as a case study. This attempt became germane … …Journal of Social Sciences, Vol. 4, Issue 2 · 30 Jun 2008 · 8,269 accessesView PDFCite
Research ArticleOpen accessIn the abstractThree Mild Stresses Known to Increase Longevity in Drosophila melanogaster Flies do not Increase Resistance to Oxidative StressÉric Le BourgExposure to a mild stress at a young age (hypergravity, cold or heat) increases longevity and resistance to heat shocks in Drosophila melanogaster flies and it may also delay behavioral aging and increase resistance to other stresses. The effect of these mild stresses on resistance to oxidative stress has not been studied. Flies were thus fed on a saccharose solution … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 7,304 accessesView PDFCite
Research ArticleOpen accessIn the abstractLife Extension by Anti-Aging Drugs: Hormetic Explanation?A.M. VaisermanA number of chemicals including antioxidants, vitamins and hormones are widely advertised as anti-aging drugs (geroprotectors). It is usually believed that life-extending capacity of geroprotectors may be attributed to their specific anti-aging mechanisms, even without solid scientific evidence. The analysis of the survival data gathered by both anti-aging and hormetic interventions demonstrates that many essential similarities exist between them. The … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 8,166 accessesView PDFCite
Research ArticleOpen accessIn the abstractECG Signal Denoising By Wavelet Transform ThresholdingMikhled Alfaouri, Khaled DaqrouqIn recent years, ECG signal plays an important role in the primary diagnosis, prognosis and survival analysis of heart diseases. In this paper a new approach based on the threshold value of ECG signal determination is proposed using Wavelet Transform coefficients. Electrocardiography has had a profound influence on the practice of medicine. The electrocardiogram signal contains an important amount of … …American Journal of Applied Sciences, Vol. 5, Issue 3 · 31 Mar 2008 · 16,512 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Post-Mating Progesterone Supplement on Pregnancy and Lambing Rates of Ewes Bred Out-of-seasonMustafa Q. Husein, Mohammed M. Ababneh, Jomana F. HijaziThe objective of this experiment was to determine whether post-mating progesterone (P4) supplement improves pregnancy and lambing rates in ewes bred during the seasonal anestrous period. In June, 39 synchronized to estrus Awassi ewes were allowed with four harnessed fertile rams immediately following CIDR-G device removal (day 0 and 0 hour). Five days following ram introduction, ewes were randomly assigned … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 3 · 31 Dec 2007 · 6,904 accessesView PDFCite
Research ArticleOpen accessIn the abstractIn Vivo Anti-malarial Tests of Nigella sativa (Black Seed) Different ExtractsH.A.A. Abdulelah, B.A.H. Zainal-AbidinNigella sativa (black seed) seeds have been used as a traditional medicine for the treatment of a variety of sicknesses including parasitic diseases. Intraperitoneal and oral administrations of ethanol, chloroform and aqueous seed extracts (50, 100, 200 and 400 µL kg-1) of N. sativa, were screened in the 4-day suppressive assays for their anti-malarial properties against Plasmodium berghei in mice. … …American Journal of Pharmacology and Toxicology, Vol. 2, Issue 2 · 30 Jun 2007 · 8,499 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrediction of a Putative Functional Region in the Human Bax Protein by Computational AnalysisMaría Sánchez-Aguilar, Laurence A. Marchat, Absalom ZamoranoStructural domains are relevant elements for interactions between Bcl-2 family members to regulate apoptosis and cell survival. Although BH1-BH4 domains can be identified by their sequence and selective occurrence in Bcl-2-family members, structural regions have not been entirely determined yet. The functional residues of Bax, the most representative pro-apoptotic protein of the human Bcl-2 family, remain almost unknown. Here, we … …American Journal of Infectious Diseases, Vol. 3, Issue 2 · 30 Jun 2007 · 7,235 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtection against Lipopolysaccharide-induced Death by An Anti-Interleukin-6 Monoclonal AntibodyBailin Liang, Debra Gardner, Don Griswold, Xiao-yu R. SongSepticemia is frequently associated with serious complications and high mortality despite recent advances in treatment with antibacterial agents. Infectious organisms or their soluble products initiate septic shock through a complex cytokine cascade. Lipopolysaccharide (LPS) induced excessive production of inflammatory cytokines is regarded as a model of septic shock. Experiments of LPS-induced excessive cytokine production were conducted in Balb/c mice for … …American Journal of Immunology, Vol. 3, Issue 1 · 30 Jun 2007 · 6,861 accessesView PDFCite
Research ArticleOpen accessIn the abstractSensitivities of Uterine Adenocarcinoma, Mixed Mullerian Tumor (MMT) and Sarcoma Cell Lines to Chemotherapeutic Agents and a Flex-Het DrugJohnny Hyde, Doris M. BenbrookThe administration and combination of a variety of chemotherapeutic agents for treatment of advanced or recurrent uterine cancer of different histologies is under current debate. Mixed Mullerian Tumors (MMTs), which contain both adenocarcinoma and sarcoma components, are the most rate histologic type and it is therefore difficult to conduct clinical trials to determine if they should be treated like endometrial … …American Journal of Pharmacology and Toxicology, Vol. 1, Issue 4 · 31 Dec 2006 · 7,465 accessesView PDFCite
Research ArticleOpen accessIn the abstractCoronary Heart Disease (CHD) Risk Factors and Metabolic Syndrome in HIV-Positive Drug Users in MiamiMarianna K Baum, Carlin Rafie, Shenghan Lai et al.The frequency of coronary heart disease (CHD) is increasing among HIV seropositive persons. This phenomenon may be related to HIV disease itself, the use of antiretroviral medications and increased length of survival, or the synergism of these factors. In this study we have calculated the 10-year CHD risk estimate and the prevalence of metabolic syndrome in a cohort of 118 … …American Journal of Infectious Diseases, Vol. 2, Issue 3 · 30 Sep 2006 · 6,993 accessesView PDFCite