Mathematics
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 Assessing Acceptability of Parents/Guardians of Adolescents Towards Introduction of Sex and Reproduc
作者  Mbonile, Lumuli & Kayombo, Edmund J.
作者单位  
期刊  East African Journal of Public Health 卷期  Vol. 5, No. 1, 2008 时间  2011.01.20
关键词  Tanzania, Sex education, Reproductive health, Parents/guardians, Initiation to adulthood
摘要   Objectives:To assess acceptability of parents/guardians of adolescents towards the introduction of sex and reproductive health education in the community and schools. Methods:A multi-stage random sampling technique was used to get 150 participants for this study. A structured questionnaire was used to interview the sampled participants and was supplemented with guided focus group discussion in Kinondoni Municipality of Dar es Salaam, Tanzania. Results:The analysis of the findings shows that there is a mixed feeling on the introduction of sex and reproductive health education in schools. Participants strongly supported that they should talk with their adolescents about sexuality and reproductive health (88.6%) but their culture prohibits them from doing so (76.7%). Also supported that condoms could protect against HIV/AIDS and sexually transmitted infections (82%), but strongly opposed the use of condoms to their adolescents because it would encourage promiscuity (78%). When the data were analysed by faith of the religions of the participants, 64% were in favour of introducing sex education and reproductive health, but were opposed to use of condoms to their adolescents. All participants were againstvijiweni, which were recreation centres for the youths because they taught bad manners to their adolescents. The preferred source of information about sex education and reproductive health should be from the parents/guardians (86%), religious leaders (70%), media (62%), health workers (61%) and school teachers (59%). Conclusion:All in all the will of introduction of sex education and reproductive health in the community is there but the approach need to be worked out carefully by taking into account of the cultural and religious factors. Parents/guardians, religious leaders and traditional charismatic leaders should take part in designing the programme and even being involved in teaching it. The other option is to lump together sex education and reproductive health education in science especially in biology which is already in place in Tanzania education programmes.
 ATTITUDE OF GENERAL PUBLIC TO RISKS ASSOCIATED WITH ANAESTHESIA
作者  Osinaike, Babatunde B.;Dairo, M.D.;Oyebamiji, E.O.;Odesanya, J.O. & Tanimowo, A.
作者单位  
期刊  East African Journal of Public Health 卷期  Vol. 4, No. 1, 2007 时间  2011.01.20
关键词  General anaesthesia, risks
摘要   Objective:To identify specific fears being entertained about general anaesthesia. Methods:People who do work in any medical facility were targeted in this prospective questionnaire-based study. All respondents were literate. The questionnaire was divided into two sections; (a) The baseline information, which included age, sex, marital status, occupation, previous exposure to anaesthesia and patient preference for anaesthesia technique. (b) Fear about risks associated with general anaesthesia; respondents were expected to pick one of four options (very concerned, somewhat concerned, not concerned and not sure), to indicate how they feel about each of the eight risks listed in the questionnaire. The data obtained was analyzed using SSPS version 10 for Windows. Results:In a bivariate analysis, marital status, occupation and previous exposure to anaesthesia are not associated with the expressed fear by the respondents. Respondents had the highest concern for the fear of death (82%), followed by fear of postoperative pain (75.4%). Least concern was for awareness during anaesthesia (37.7%). The mean age of those who expressed concern about being aware during operation is 37.0± 8.6years while those not concerned is 31.8± 8.5years(p=0.034). More of those who are concerned with nakedness preferred general anaesthesia (p=0.023). Also, more females (95.7%) than males (70.6%) expressed fear about pain during general anaesthesia (p= 0.019). Conclusion:Fear of death is a great concern for our patients coming for general anaesthesia and it is followed closely by fear of postoperative pain, the later was of greater concern to females. Finally, more of those who were concerned about nakedness preferred general anaesthesia.
 Biogass emission prognosis at the landfills
作者  Bicheldey, T.K. & Latushkina, E.
作者单位  
期刊  International Journal of Environment Science and Technology 卷期  Vol. 7, No. 4, 2010 时间  2011.01.17
关键词  Air pollution; Atmosphere; Carbon dioxide; Methane; Solid waste
摘要   The present study aims to estimate biogas potential of two Russian landfills situated in the republic of Tatarstan and in Moscow Region. Due to environmental, economic, social and energetic consideration of biogas for human being, utilization of such a by-product would be of high concern. To date, there are seven biogas utilization projects which have been developed and implemented at municipal solid waste landfills of Russia. The purpose of the research was to determine the biogas potential at the closed landfills. During the studies held in 2008; sampling, transportation, storage of biogas and landfill soil samples, laboratory investigations; physicochemical and analytical methods for measuring of proteins, carbohydrates and fats in the organic part of the soil and the analysis of empirical data by the methods of computer modeling and mathematical statistics were carried out. The obtained results of the research; concentrations of biogas components: methane, carbon dioxide, carbon oxide, nitrogen, hydrogen and oxygen, gas flows, composition of the organic part of the fields and analysis of gas distribution on the surface of the landfills; has shown scientific and practical importance. Results could be used for the assessment of biogas potential at the landfills for further biogas utilization projects implementation with electrical or thermal energy production.
 Understory vegetation as environmental factors indicator in forest ecosystems
作者  Mataji, A.;Moarefvand, P.;Babaei Kafaki, S. & Madanipour Kermanshahi, M.
作者单位  
期刊  International Journal of Environment Science and Technology 卷期  Vol. 7, No. 4, 2010 时间  2011.01.17
关键词  Environmental factors; Herb layer; Multivariate analysis
摘要   Physiographic factors along with edaphic conditions play a crucial role in establishment of plant species throughout a region. Identification of the most effective factors is of high importance in sustainable management of a forest ecosystem. This study aims to investigate the relationships between understory vegetation and some environmental factors in natural forest ecosystems. This study has been carried out among the Fagetum orientalis communities of Ramsar Region, located in the north of Iran. For this purpose, 105 releves were sampled by a randomized-systematic method throughout the study area, using the Braun-Blanquet scale. Physiographic parameters such as elevation, as well as slope and orientation were measured. By identification of the herb-layer vegetation contained in each sampling, vegetation composition and cover abundance of species were separately identified. Then, the aforementioned properties of soil were entirely measured in the taken samples. Cluster analysis and detrended correspondence analysis have been applied to classify the site. Moreover, in order to determine the relation between species composition and environmental factors, canonical correspondence analysis was used. Results showed a significant relation between distribution of plant types and environmental factors. Eventually, environmental factors including slope, orientation, silt percent, pH, organic matter, soluble phosphorous were among the most effective factors in establishment of Hedera pastuchowii, Solanum kieseritzkii, Oplismenus undulatifolius, Sedum stoloniferum, Rubus hyrcanus and Saxifraga cymbalaria species.
 FORCE FIELD ANALYSIS ON LIQUID METAL DURING ELECTROMAGNETIC CENTRIFUGAL SOLIDIFICATION
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  2000, 13(2 时间  2011.01.10
关键词  电磁场,离心力,凝固,电磁搅拌,液态金属,
摘要  
 Snoek-K■-kster DAMPING IN 340 MPa BAKE HARDENING STEELS
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  2000, 13(2 时间  2011.01.10
关键词  内耗,SKK峰,钢,烘烤硬化,
摘要  
 SURFACE ANALYSIS OF ALUMINUM ALLOYS INFLUENCED BY SULFATE REDUCING BACTERIA
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  1999, 12(5 时间  2011.01.10
关键词  aluminum alloys, sulfate reducing bacteria, pitting, surface analysis,
摘要  
 Analysis of density and mechanical properties of high velocity compacted iron powder
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  2009, 22(6 时间  2011.01.10
关键词  Powder metallurgy,High velocity compaction,Density,Mechanical properties,Iron powder,
摘要  
 Stress Analysis of the Aperture in Compound Pipeline by FEM
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  2007, 20(5 时间  2011.01.10
关键词  compound pipeline,stress,software Marc,
摘要  
 SUBSTRATE MATERIALS FOR POLY-CSiTF SOLAR CELLS: OPTIMIZATION OF SILICON SHEET FROM POWDER
作者  
作者单位  
期刊  Acta Metallurgica Sinica(English Letters) 卷期  2005, 18(3 时间  2011.01.10
关键词  ploy-CSiTF,SSP,substrate material ,
摘要  
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