Research ArticleOpen accessIn the abstractA Study of Seasonal Physicochemical Parameters in River UsmaA. I. Ugwu, R. J. WakawaGrowing populations may put stresses on natural waters by impairing both the quality of the water and the hydrological budget. Abuja, being relatively a new city and the new Federal Capital Territory of Nigeria, has scarce physicochemical data on its water resources that could assist in making robust decision in mitigating the impact of human societies on natural waters; which … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 20 Sep 2012 · 9,279 accessesView PDFCite
Research ArticleOpen accessIn the abstractIsolation of Nitrate and Phosphate Removing Bacteria from Various Environmental SitesS. DebRoy, S. Das, S. Ghosh et al.Problem statement: Nitrate and phosphate are two major pollutants due to anthropogenic activity like excessive use of fertilizers in agriculture. Their contamination has emerged as a global problem and its potential threat is marked on the environmental sustainance as well as on the public health. Approach: The objective of the current study is to isolate efficient nitrate and phosphate removing … …OnLine Journal of Biological Sciences, Vol. 12, Issue 2 · 29 Jun 2012 · 9,354 accessesView PDFCite
Research ArticleOpen accessIn the abstractFujisaki’s Model of Thai’s Fundamental Frequency Contours with Environmental NoisesSuphattharachai Chomphan, Chutarat ChompunthProblem statement: An important human speech feature is the fundamental frequency (F0) contour which represents the speech prosody. It indicates the naturalness and intelligibility of the speech. Modeling of fundamental frequency contour was an essential procedure in the natural speech processing. In speech communication, environmental noise plays an essential role in damaging the digital communication quality. The study of effects … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 28 Jun 2012 · 7,286 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Environmental Noises on Fundamental Frequency Contours of Thai DialectsSuphattharachai Chomphan, Chutarat ChompunthProblem statement: Fundamental Frequency (F0) is an important speech feature defining the human speech prosody. It is the resultant of the vibration of human’s vocal chords in speech production. In Thai, there are four main dialects spoken by Thai people residing in four core region including central, north, northeast and south regions. Environmental noises are also playing an important role … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 9 Mar 2012 · 7,036 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Shrimp Farm Effluent on Water Quality in Coastal Areas of the World Heritage-Listed Ha Long BayThuyet D. Bui, Jim Luong-Van, Chris M. AustinProblem statement: Shrimp farming has rapidly developed in coastal areas of the World Heritage-listed Ha Long Bay since the last decade. Effluent discharged from shrimp farms with high levels of nutrient waste may cause eutrophication in receiving waterways. Therefore, assessing water quality at tidal creeks receiving shrimp farm effluent in coastal areas of Ha Long Bay supports environmental protection and … …American Journal of Environmental Sciences, Vol. 8, Issue 2 · 3 Mar 2012 · 11,289 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpeech Compression for Noise-Corrupted Thai DialectsSuphattharachai ChomphanProblem statement: Dialects of Thai are quite different in the speaking styles. Environmental noises play an important role in corrupting the communication speech quality. Two factors affect the coded speech in the present speech communication. It is necessary to investigate how the two factors influence on the speech compression. Approach: In this study, the Multi-Pulse based Code Excited Linear Predictive … …American Journal of Applied Sciences, Vol. 9, Issue 3 · 9 Jan 2012 · 7,241 accessesView PDFCite
Research ArticleOpen accessIn the abstractImpact of Abattoir and Saw-Mill Effluents on Water Quality of Upper Ogun River (Abeokuta)A. O. Adeogun, A. V. Chukwuka, O. R. IborProblem statement: The unregulated discharge of contaminants from point sources into inland freshwater aquatic systems and the resultant deterioration of water quality are largely undocumented in developing countries like Nigeria especially with respect to the role of seasonal factors on the recovery capacity of aquatic systems. Approach: The aim of this study was to assess the impact of abattoir and … …American Journal of Environmental Sciences, Vol. 7, Issue 6 · 6 Jan 2012 · 8,639 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Ethics in River Water ManagementRavichandran Moorthy, Ganesan JeyabalanProblem statement: Environmental ethics concerns human beings’ ethical relationship with the natural environment. The fundamental question regarding environmental ethics is basically-what moral obligations do we have concerning the natural environment? The main objective of this study is to examine the extent environmental ethics manifest in river management. The study employs the case study of Malaysia’s Gombak River-one of the most … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 7 Oct 2011 · 9,500 accessesView PDFCite
Research ArticleOpen accessIn the abstractClimate Change and its Implications to National SecurityMamunur Rashid, Joy Jacqueline Pereir, Rawshan Ara Begum et al.Problem statement: Climate change is increasingly one of the most serious national security threats which will have significant impacts on natural and coastal resources, ecosystem, human health and settlements, thereby affecting human wellbeing. At the same time, it is likely to influence of large scale human migration, economic and social depression over scarce natural resources and political systems necessary involve … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 8,074 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Study of Urban Quality of Life in a Developing CountrySedigheh Lotfi, Amin Faraji, Husain Hataminejad, Ahmad PourahmadProblem statement: The rapid growth of urbanization has led to degradation of quality of life in many developing countries. The qualitative approach towards development concepts provided background for studying the object of quality of life. This concept was declared by Raymond Bauer in 1966 in response to the increase of urban crisis. Today, quality of life refers to the capacity … …Journal of Social Sciences, Vol. 7, Issue 2 · 21 Mar 2011 · 8,341 accessesView PDFCite