Environment research journal最新文献

{"title":"Urban-Rural Differential In Teaching And Learning Of Geography In Ahiazu Mbaise And Owerri Municipal Council In Imo State","authors":"M. Obasi, A. Ikoku","doi":"10.3923/ERJ.2011.140.148","DOIUrl":"https://doi.org/10.3923/ERJ.2011.140.148","url":null,"abstract":"The all important need for self-reliance and technology in Nigeria calls for teachers to meet the requirement of the new national policy on Education. The concern of this study is therefore focused on the problems of Geography education in Nigeria. It examines the rural- urban variables affecting the teaching and learning of geography in Imo State. The sample for the study comprises ten schools, five each from rural and urban areas. Structured questionnaires were distributed to school principals and Geography teachers of the sampled schools and contingency analysis employed to test for the significant differences. The major findings of the study include the following. That one consistent indicator of differences in schools certificate geography achievement is school location. That the urban environment tends to be capable of raising and reinforcing children's cognitive behaviour more than rural environment. That difference in the supply and availability of geography teachers both in the right quantity and quality Geography equipment, library and text books create differences in the teaching and learning of geography in the rural and urban schools. Finally, that given the necessary qualified staff and equipment, students in the rural schools will perform equally well as those in the urban schools. (Report and Opinion 2010;2(9):33-44). (ISSN: 1553-9873).","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"140-148"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70027083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CLIMATE CHANGE ASSESSMENT OVER IRAN DURING 2010-2039 BY USING STATISTICAL DOWNSCALING OF ECHO- G MODEL","authors":"I. Babaeian, Z. Najafinik, F. Abbasi, A. Hamed, S. Malbousi","doi":"10.3923/ERJ.2011.149.155","DOIUrl":"https://doi.org/10.3923/ERJ.2011.149.155","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"7 1","pages":"135-152"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70027157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drought management strategies among agro-pastoral communities in non-equilibrium Kalahari ecosystems.","authors":"K. Mogotsi, M. Nyangito, D. Nyariki","doi":"10.3923/ERJ.2011.156.162","DOIUrl":"https://doi.org/10.3923/ERJ.2011.156.162","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"156-162"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Failure Evaluation of Aluminum Alloy in 2 M HydrochloricAcid in the Presence of Cola acuminata","authors":"O. Ajayi, O. Omotosho, K. O. Ajanaku, Babatunde O. Olawore","doi":"10.3923/ERJ.2011.163.169","DOIUrl":"https://doi.org/10.3923/ERJ.2011.163.169","url":null,"abstract":"Hydrochloric acid induced damage of alwninwn alloy in the presence of Cola acuminata extract was \u0000investigated using gasometric technique. Alwninwn alloy coupons of dimension 4 em by 1 em were immersed \u0000in test solutions of free acid and also those containing extract concentrations of 2-5 cm3 at ambient temperature \u0000for 30 min. The volwnes of hydrogen gas evolved as a result of the reaction rate were recorded and analyzed. \u0000The outcome revealed that maximwn inhibitor efficiency which corresponds to the lowest corrosion rate was \u0000obtained at optimwn inhibitor concentration with reduction in the corrosion rate observed to follow in order \u0000of increasing extract concentration. The mechanism of interaction between the phytochemicals in the plant \u0000extract and ahnninlllll alloy swface was best described by the Fnnnkin isotherm with 6 and 14 min becoming the \u0000best exposure time for the phytochemicals in extract concentrations of 3-5 cm3 to suitably adsorb to metal alloy \u0000surface. Statistically modeling the corrosion rate yielded a significant relationship suitable for estimating \u0000corrosion rate values once concentration of the extract is known. In addition, the superficial analysis revealed \u0000that crack growth rate slowed doVll and irregular intermetallic phases were more mriform as extract \u0000concentration increased.","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"10 1","pages":"163-169"},"PeriodicalIF":0.0,"publicationDate":"2011-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Magnetic Protection of Cooling System in Internal Combustion Engines against Corrosion and Scale Formation","authors":"M. Gholizadeh, H. Arabshahi","doi":"10.3923/ERJ.2011.114.116","DOIUrl":"https://doi.org/10.3923/ERJ.2011.114.116","url":null,"abstract":"The effect of magnetism on the internal scale formation responsible for pitting orrosion inside the engine's cooling jackets have been studied. It is found that the presence of permanent magnetic field systems in petrol and diesel engines from internal The effect of magnetism on the internal scale formation responsible for engine's cooling jackets have been studied. It is found that the presence of permanent magnetic field inhibits scale formation, and protects the cooling systems in petrol and diesel engines from internal corrosion. : Magnetism, Corrosion, Scale formation, Magnetic field The presence of insoluble salts of Ca2+ and Mg2+ ions in water leads to frequent sedimentation in scale formation inside the cooling system of internal combustion of engines, and corrosion. Initially fine pits appear inside the engine's cooling jackets, then spotted corrosion starts, and finally the jacket corrodes uniformly from inside. At present, various methods of scale prevention have 4). For example, in some machines the additives is mixed with water for corrosion formation in the engine's cooling jackets and water treatment method requires high power consumption. Water quality was monitored whilst the engine was in operation, and was not very environmentally Previous experiments have also been shown that precipitation of insoluble calcium salts increases with the rise in temperature of water and the PH changes accordingly. With increasing temperature the concentration of insoluble salts increases and the Co2 gas is released from The effect of magnetism on the internal scale formation responsible for engine's cooling jackets have been studied. It is found that the the cooling The presence of insoluble salts of Ca2+ and Mg2+ ions in water leads to frequent sedimentation resulting in scale formation inside the cooling system of internal combustion of engines, and hence internal corrosion starts, and At present, various methods of scale prevention have example, in some machines the additives is mixed with water for corrosion formation in the engine's cooling jackets and cooling system water treatment method requires high power consumption. Water quality was monitored whilst the engine was in operation, and was not very environmentally also been shown that precipitation of insoluble calcium salts increases with the rise in temperature of water and the PH changes accordingly. With increasing water temperature the concentration of insoluble salts increases and the Co2 gas is released from CaCo3 as can be","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"114-116"},"PeriodicalIF":0.0,"publicationDate":"2011-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ADSORPTION OF IRON (III), LEAD (II) AND CADMIUM (II) IONS BY UNMODIFIED RAPHIA PALM (RAPHIA HOOKERI) FRUIT ENDOCARP","authors":"C. Abasi, A. Abia, J. C. Igwe","doi":"10.3923/ERJ.2011.104.113","DOIUrl":"https://doi.org/10.3923/ERJ.2011.104.113","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"104-113"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Study on Addition of Nutrient Pillar of Nitrogen, Phosphorus, Potassium (N:P:K) and Organic Materials in Organic Fertilizer Which is Decomposed by Using Earthworms (Pheretima peguana)","authors":"J. Kurukodt, P. Jitto, S. Passago, S. Vongtanabo","doi":"10.3923/ERJ.2011.93.96","DOIUrl":"https://doi.org/10.3923/ERJ.2011.93.96","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"93-96"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70027557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal variation of heavy metals accumulation in water and oyster (Saccostrea cucullata) inhabiting central and western sector of Indian sundarbans.","authors":"P. Barua, A. Mitra, K. Banerjee, M. Chowdhury","doi":"10.3923/ERJ.2011.121.130","DOIUrl":"https://doi.org/10.3923/ERJ.2011.121.130","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"35 1","pages":"121-130"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Occurrence and seasonal variation of heteroligus meles billb (Coleoptera: Dynastidae) in upper Niger Delta, Nigeria.","authors":"F. Okiemute","doi":"10.3923/ERJ.2011.136.139","DOIUrl":"https://doi.org/10.3923/ERJ.2011.136.139","url":null,"abstract":"Studies conducted in 2004/2005 in the rainforest ecological zone of Anwai-Asaba in the Upper Niger Delta, Nigeria, examined the occurrence and seasonal variation in the population of yam tuber beetles (Heteroligus spp). The beetle population started building up in May with the peak occurrence as determined by the light traps occurring in July-August. The population trend is climate dependent and the peak was unimodal. Correlation analysis was negative for temperature (b= -0.662) while it was positively correlated with rainfall (b=0.552) and relative humidity (b=0.543). Based on the coefficient of determination (R 2 ), beetle occurrence can be predicted on weather elements studied to about 52% for rainfall 29% relative humidity and 44% for temperature. The best predictive tools for monitoring the commencement of occurrence of the yam beetle are the three major weather parameters, namely temperature, relative humidity, rainfall but the later was more critical according to this study.","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"136-139"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70026994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate Change Related Disasters and Vulnerability: An Appraisal of the Nigerian Policy Environment","authors":"R. U. Adebimpe","doi":"10.3923/ERJ.2011.97.103","DOIUrl":"https://doi.org/10.3923/ERJ.2011.97.103","url":null,"abstract":"","PeriodicalId":72927,"journal":{"name":"Environment research journal","volume":"5 1","pages":"97-103"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70027654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}