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88 articles for “Environmental Changes”
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Research ArticleOpen accessIn the abstractToxicity Testing and the Effect of Landfill Leachate in Malaysia on Behavior of Common Carp (Cyprinus carpio L., 1758; Pisces, Cyprinidae)Jaffar Y.M. Alkassasbeh, Lee Yook Heng, Salmijah SurifProblem Statement: Landfill leachate had been implicated in environmental pollution, developmental anomalies, birth defect and surface and groundwater pollution worldwide. This study has been conducted to determine the toxicity of landfill leachate from three different landfills in Malaysia on fry common carp (Cyprinus carpio L., 1758; Pisces, Cyprinidae) in combination with some physico-chemical parameters analysis. Approach: Leachates were collected from … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 8,029 accessesView PDFCite
Research ArticleOpen accessIn the abstractAssessment of Genotoxic Activity of Para-nitrophenol in Higher Plant Using Arbitrarily Primed- polymerase Chain Reaction (AP-PCR)Mohamed R. EnanParanitrophenol is a common toxic environmental pollutant; the aim of this study was to evaluate the potential of the DNA fingerprinting by AP-PCR assay to detect the DNA damage in the common bean (Phaseolus vulgaris) exposed to different concentrations of paranitrophenol (4.0-720 nM). The changes occurring in the fingerprint patterns were likely to be the result of paranitrophenol-induced DNA damage. … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 2 · 30 Jun 2007 · 7,069 accessesView PDFCite
Research ArticleOpen accessIn the abstractOrganizational Culture and Tourist Satisfaction in a Lake-Based Tourism AreaNor’Aini Yusof, Mohd Fitri Che Jamil, Ilias Said, Abdel Naser Omran AliProblem statement: Although many studies have highlighted that certain cultures are evident in certain firms, there are only few studies done on ecotourism areas and little has been done to analyse how these cultures have affected the performance of these organizations. Approach: Conceptualizing organizational culture as the values and practices employed in an organization and considering tourist satisfaction as intangible … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 31 Jan 2012 · 7,390 accessesView PDFCite
Research ArticleOpen accessIn the abstractThermal Comfort Assessment: A Case Study at Malaysian Automotive IndustryA. R. Ismail, N. Jusoh, R. Zulkifli et al.Problem statement: Thermal comfort has a great influence on the productivity and satisfaction of indoor building occupants. The exposure to excessive heat during work may cause discomfort and contributed to low productivity among workers. Malaysia known with its hot and humid weather where in most of the survey study published indicated that workers in Malaysia automotive industries had exposed to … …American Journal of Applied Sciences, Vol. 6, Issue 8 · 31 Aug 2009 · 7,581 accessesView PDFCite
Research ArticleOpen accessIn the abstractManaging Air in Olympic CitiesQing Wen Tian, Peter BrimblecombeThe 21st century Olympic Agenda aims to align itself with the concept of sustainable development and has driven improved environmental quality in host cities, such as the Green Games in Sydney 2000 and the planned Beijing 2008 Games and in London 2012 as the Low Carbon Games. Air quality has long been a concern of Olympic mega-cities, although the air … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 7,693 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Mathematical Modeling Approach to Characterize Hormesis, Caloric Restriction and Toxicity in Mortality Data from Toxicity StudiesPatricia J. NeafseyThe mortality of a population reflects the combined effects of natural aging with environmental insults (e.g. toxicant exposure, caloric restriction, over feeding, infections, etc.). No single endpoint, such as carcinogenesis, completely describes toxicant-induced effects in laboratory animals. Mathematical models of mortality and time-dependent exposure to toxicants can yield indices of net injury from all causes. With careful manipulation of diet … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 7,163 accessesView PDFCite
Research ArticleOpen accessIn the abstractGrain Size Distribution Characteristics Variation in Oily Contaminated Sandy Soils Due to Long Term Aging Effect in Al-Ahmadi Field at KuwaitHumoud Melfi Aldaihani, Fahad A. Alotaibi, Farraj F. Al-ajmiAlmost three decades on, the negative environmental impacts arising from the burning of over 600 oil wells in Kuwait following the 1991 Gulf War are still evident. At the time of the incident, the Kuwaiti desert region became polluted with hydrocarbon, with a number of ‘oil lakes’ forming, causing critical harm to local land. This paper discusses the shifts in … …American Journal of Applied Sciences, Vol. 15, Issue 10 · 23 Nov 2018 · 8,412 accessesView PDFCite
Research ArticleOpen accessIn the abstractContributions to the Stirling Engine StudyFlorian Ion Tiberiu PetrescuIn the process of transforming thermal energy into mechanical work, among the known thermal machines, the Stirling engine is the one that can achieve the highest yield (theoretically up to the maximum yield of the Carnot cycle), although in practice it is reduced by the properties of gas and materials used such as friction coefficient, thermal conductivity, melting point, breaking … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 4 · 22 Nov 2018 · 10,178 accessesView PDFCite
Research ArticleOpen accessIn the abstractAdvanced Manufacturing for Novel Materials in Industrial Design ApplicationsFrancesco Tamburrino, Antonio Apicella, Raffaella Aversa, Florian Ion Tiberiu PetrescuThe research presented starts with a focus on Smart Materials, or rather materials with properties that react to external stimuli (temperature, electric or magnetic field, pH or mechanical stress, for example) related to the environmental changes, modifying one or some of their own properties (mechanical, electrical, appearance, etc.). Afterward, one category of Smart Materials, Shape Memory Alloys (SMAs), has been … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 2 · 30 May 2018 · 8,540 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Cadmium on Worker Ovary Morphology of Bombus morio (Hymenoptera: Bombini)Fábio Camargo Abdalla, Marina Pedrosa, Caio Eduardo da Costa Domingues, Paulo José BalsamoBees are valuable bioindicators, providing information regarding environmental conditions through different kinds of analyses. Therefore, the effect of cadmium on the morphology of ovaries of Bombus morio workers was used to study a concentration considered environmentally safe (1 ppb) in Brazil. Workers of the same estimated age exposed for 48 h to 1 ppb cadmium showed extensive morphological changes in … …American Journal of Agricultural and Biological Sciences, Vol. 13, Issue 1 · 10 Apr 2018 · 9,143 accessesView PDFCite