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Production and Evaluation of Biscuits from Lima Bean (Phaseolus Lunatus), Sorghum and Wheat Flour Blends. 利马豆、高粱、小麦粉混料饼干的生产与评价。
Pub Date : 2017-07-01 DOI: 10.9790/2402-1107014448
A. S.F, Okoli E.C
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引用次数: 8
Impact Of Secondary School Geography Content In Mitigating Climate Change In Uganda 乌干达中学地理内容对减缓气候变化的影响
Pub Date : 2017-07-01 DOI: 10.9790/2402-1107013543
M. Ronald, Kagoda Alice Merab, Mugimu Christopher Byalusaago
Climate change is a key concern to the local and global community. Because of its transformative nature, education both formal and informal has been identified as the vehicle for mitigating climate change. Many education systems however have been found lacking content necessary to produce learners that will lead efforts in mitigating climate change. Content is a very important element of the education process. It forms the basis for teaching and learning. Geography as an interdisciplinary subject is most suitable to teach learners about climate change. This study investigates the contribution of secondary school geography content in mitigating climate change in Uganda. Through questionnaires and interviews from geography teachers, this study reveal that content about climate change in the secondary school geography curriculum in Uganda is not explicit. The climate change content lies at the background of other topics and requires expertise of the teachers to retrieve it. Therefore teaching about climate change depends on interest and capacity of individual teachers.
气候变化是当地和全球社会关注的一个关键问题。由于其变革性质,正规和非正规教育已被确定为减缓气候变化的工具。然而,发现许多教育系统缺乏必要的内容,以培养将领导减缓气候变化努力的学习者。内容是教育过程中非常重要的因素。它构成了教与学的基础。地理作为一门跨学科的学科,最适合教授学生有关气候变化的知识。本研究调查了乌干达中学地理内容在缓解气候变化方面的贡献。通过对地理教师的问卷调查和访谈,本研究发现乌干达中学地理课程中关于气候变化的内容并不明确。气候变化的内容处于其他主题的背景下,需要教师的专业知识来检索。因此,气候变化教学取决于教师个人的兴趣和能力。
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引用次数: 4
Seasonal variations in zooplankton with reference to physicochemical conditions in temple pond at Thiruvottiyur, Chennai 参考物理化学条件的寺庙池浮游动物季节变化
Pub Date : 2017-07-01 DOI: 10.9790/2402-1107010105
J. M. Bashini, S. Pandiammal, P. Senthilkumaar
Seasonal dynamics of plankton diversity with reference to physico-chemical conditions in a fresh water pond was studied in temple pond at Thiruvottiyur, Chennai. Along with the physico-chemical parameters, water samples were also characterized for plankton community composition and density. The physico-chemical parameters also showed positive correlation with different zooplankton group. The water samples were analyzed for various physico-chemical factors. Totally 4 groups of zooplankton taxa were identified (Rotifera, Cladocerans, Ostracodans and Copepods). Zooplankton population density was maximum during summer (100 units/litre) and minimum (8.85 units/litre) during monsoon season. A total of 19 taxa were recorded (Rotifera 3, cladocerans 4, Ostracodans 6 and Copepods 6). Among the Rotifera, Branchionus and Keratella species; among the Cladocerans, Moina and Bosmina species; among the Ostracodans, Heterocypris and Physocypria species and among Copepods, Undinula and Pontellopsis species were abundant. The abundance of zooplankton in the pond follows a sequence as: Ostracodans = Copepods > Cladocerans > Rotifera. Correlation between various physico-chemical parameters and zooplankton density was calculated. Some of the changes in zooplankton community structure were found associated with seasonal changes in temperature and nutrient content of water. Rise in DO and nutrient levels of nitrate, phosphate and silicate suggested favorable conditions for plankton growth. This study revealed that the presence of above mentioned species are considered to be biological indicator for eutrophication.
参考物理化学条件,研究了钦奈蒂鲁沃蒂尤尔寺池淡水池塘浮游生物多样性的季节动态。除物理化学参数外,还对水样的浮游生物群落组成和密度进行了表征。理化参数也与不同浮游动物类群呈正相关。对水样进行了理化因素分析。共鉴定出轮虫目、枝目、介形虫目和桡足目4个浮游动物类群。浮游动物种群密度夏季最大(100个单位/升),季风季节最小(8.85个单位/升)。共记录到19个分类群(轮虫目3个,枝亚目4个,介形虫目6个,桡足目6个)。其中轮虫目、支虫目和角虫目;在支大洋目中,莫伊纳和博斯米纳种;介形虫类中有丰富的异足类和巨足类,桡足类中有丰富的Undinula和Pontellopsis类。池中浮游动物的丰度顺序为:介形虫类=桡足类>枝海目>轮虫目。计算了各理化参数与浮游动物密度的相关性。浮游动物群落结构的一些变化与温度和水体养分含量的季节性变化有关。水体溶解氧和硝酸盐、磷酸盐、硅酸盐等营养物质水平的上升表明水体中浮游生物的生长条件有利。本研究表明,上述物种的存在被认为是富营养化的生物学指标。
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引用次数: 1
Assessment of Geoidal Undulation (N) Values Computed with Reference to Different Earth Gravity Models 参考不同地球重力模型计算大地面波动(N)值的评估
Pub Date : 2017-07-01 DOI: 10.9790/2402-1106036472
Benjamin John Bulangas, A. Mohammed, M. Ismaila
This research entails the determination of the variations in global geoid undulation with reference to different Earth Gravity Models (EGMs). Geoidal undulation values of 22 points selected within the study area were determined from GPS derived data on differential mode. The undulation values were computed with reference to three different earth gravity models (EGM84, EGM96 and EGM2008) which use geopotential coefficients and spherical harmonic analysis. The results obtained were plotted and the configuration of the local geoid was obtained with respect to each gravity model. It was observed that structural development in the school (study area) since its inception in 1981 has forced some significant changes in the mass distribution in the school and consequently changes in gravity values which in turn changes the undulation values (which depends on gravity) from point to point. It was also observed that there was correlation between the local geoid determined and the nature of the topography. Areas with higher ellipsoidal or orthometric heights experience greater separation between the geoid and the ellipsoid.
这项研究需要确定参考不同地球重力模型(egm)的全球大地水准面波动的变化。利用差分模式下的GPS数据,确定了研究区内选取的22个点的大地水准面波动值。参考EGM84、EGM96和EGM2008三种不同的地球引力模型,分别采用位势系数和球谐分析计算了其波动值。对所得结果进行了绘图,并得到了各重力模型的局部大地水准面构型。据观察,自1981年建校以来,学校(研究区域)的结构发展迫使学校的质量分布发生了一些重大变化,从而改变了重力值,从而改变了点与点之间的波动值(这取决于重力)。还观察到,确定的局部大地水准面与地形性质之间存在相关性。椭球面高度或正交高度较高的区域在大地水准面和椭球面之间有较大的分离。
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引用次数: 1
The Degradation Potential of Some Fungal Isolates on Various Types of Waste Water 几种真菌分离物对不同类型废水的降解潜力
Pub Date : 2017-07-01 DOI: 10.9790/2402-1106037376
Esraa Mohamed, Shami E. A. Bakhiet
The objective of this study was to determine the degradation activity of a number of isolated fungi (Aspergillus niger, Aspergillus fumigates and Mucor spp) against various types of wastewater. Waste water Samples were collected in sterile bottles from two places (CAPO Company and wastewater treatment plant in Haj Yousif), in October 2016. Metals and heavy metals were measured in wastewater samples before and after treatment by tested isolated fungi. Results showed increased reduction in Chemical oxygen demand (BOD) after treatment of CAPO CO. wastewater (96.23 %) rather than in Haj Yousif region (44.00 %). Chemical oxygen demand (COD) exhibited more reduction after treatment of CAPO CO wastewater (95.7 %) rather than Haj Yousif region which increased by 18.81 %. Total suspended solids (TSS) reduced after treatment of CAPO CO. wastewater by 75 % while in Haj Yousif region the reduction was 25 %. Moreover, no change was observed in Total dissolved Solids (TDS) after treatment of both CAPO CO. wastewater and Haj Yousif region (0 %). Similarly, no change was observed in NH3 content after treatment of CAPO CO. and Haj Yousif region (36.66 %). PO4/P, CL-, SO-24, Fe+++, Pb+2, and Cr+2 were reduced after treatment of CAPO CO wastewater (%49.23), While in Haj Yousif region were decreased as follows (-2.89, -11.12, -106.04, and -200) respectively. Cu+2 quantity reduction was increased after treatment of CAPO CO wastewater (97 %) more than in Haj Yousif region (6.25 %). Cd+2 in Haj Yousif region was increased (49.23 %), but in Capo CO wastewater was not detected (ND). The present study demonstrated the efficiency of these tested microorganisms to degrade the heavy metals.
本研究的目的是确定一些分离真菌(黑曲霉、烟熏曲霉和毛霉菌)对不同类型废水的降解活性。2016年10月,在两个地方(CAPO公司和Haj Yousif污水处理厂)用无菌瓶采集废水样本。测定了经分离真菌处理前后废水样品中的金属和重金属含量。结果表明,CAPO CO.废水处理后的化学需氧量(BOD)降低率(96.23%)高于Haj Yousif地区(44.00%)。CAPO CO废水处理后,化学需氧量(COD)下降幅度为95.7%,高于Haj Yousif地区的18.81%。CAPO CO.废水处理后总悬浮固体(TSS)减少了75%,而在Haj Yousif地区减少了25%。此外,CAPO CO.废水和Haj Yousif地区(0%)处理后,总溶解固体(TDS)没有变化。同样,CAPO CO.和Haj Yousif地区处理后NH3含量也没有变化(36.66%)。CAPO CO废水处理后,PO4/P、CL-、SO-24、fe++ +、Pb+2和Cr+2分别降低了-2.89、-11.12、-106.04和-200,降低率为%49.23。CAPO CO废水处理后Cu+2减量(97%)高于Haj Yousif地区(6.25%)。Haj Yousif地区Cd+2含量升高(49.23%),而Capo CO废水未检出(ND)。本研究证明了这些被测微生物对重金属的降解效率。
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引用次数: 0
Household Air Pollutionin Rural Western Kenya: A Major Public Health Challenge 肯尼亚西部农村家庭空气污染:一项重大公共卫生挑战
Pub Date : 2017-07-01 DOI: 10.9790/2402-1107018796
C. Munyao, G. Simiyu, K. Kiptoo, John Chelal
The use of biomass fuels poses great threats to public health accounting for 32% of the total attributable burden of diseases due to Indoor Air Pollution (IAP) in Africa. Heavy reliance on biomass fuels for household energy in Kenya makes the country more vulnerable with 90% of the rural population relying on biomass fuels for domestic purposes. The objective of this study was to assess effectiveness of improved biomass cookstoves in reducing kitchen PM2.5 concentration in Western Kenya region. The data was collected through continuous real-time monitoring of kitchen pollution concentration for a period of 24 hours using UCB-PATS, CO monitors, questionnaires and time activity budgets. Data analysis was undertaken by performing ANOVA to test for their variations from WHO stipulated safe standards. The study found that at 95% CI, mean 24-hr kitchen CO and PM concentrations from all the stoves were significantly higher than the stipulated WHO threshold. Three-stone fire had the highest average 24-hour kitchen PM and CO emissions using firewood at 4272.414μg/m 3 (p = 0.000) and 75.4417ppm (p = 0.000), respectively, while Chepkube stove had the least at 682.646μg/m 3 (p = 0.000) and 8.7224ppm (p = 0.000), respectively. It was concluded that, improved biomass stoves provided an overall reduction in pollutant concentration compared to three-stone fire but the local innovation Chepkube stove that has been classified as ungraded stove had the highest pollutant reduction. In addition, indoor air pollution in rural areas is a real health risk. Consequently, it was recommended that programs aiming to reduce the adverse health impacts of CO and PM2.5 should focus on measures that result in larger reductions of PM2.5 emissions especially during burning and peak periods.
生物质燃料的使用对公共卫生构成巨大威胁,占非洲室内空气污染所致疾病总可归因负担的32%。肯尼亚家庭能源对生物质燃料的严重依赖使该国更加脆弱,90%的农村人口依靠生物质燃料用于家庭目的。本研究的目的是评估改进的生物质炉灶在降低肯尼亚西部地区厨房PM2.5浓度方面的有效性。数据是通过使用UCB-PATS、CO监测仪、问卷调查和时间活动预算对厨房污染浓度进行连续24小时实时监测而收集的。通过方差分析进行数据分析,以检验其与世卫组织规定的安全标准的差异。研究发现,在95%置信区间内,所有炉灶产生的24小时厨房CO和PM平均浓度明显高于世卫组织规定的阈值。使用柴火的三石炉的厨房24小时PM和CO平均排放量最高,分别为4272.414μg/m 3 (p = 0.000)和75.4417ppm (p = 0.000),而Chepkube炉的最低,分别为682.646μg/m 3 (p = 0.000)和8.7224ppm (p = 0.000)。结论是,与三石炉相比,改进的生物质炉提供了污染物浓度的总体降低,但被归类为未分级炉的当地创新Chepkube炉的污染物减少量最高。此外,农村地区的室内空气污染是一个真正的健康风险。因此,建议旨在减少CO和PM2.5对健康不利影响的计划应侧重于能够大幅减少PM2.5排放的措施,特别是在燃烧和高峰时期。
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引用次数: 0
Study On the Biogas Yielding Potential of a Portable Bioreactor Using a Blend of Corn Cob and Rice Chaff Mixed With Goat and Dog Dungs 玉米芯、稻壳与羊粪、狗粪混合的便携式生物反应器产气潜力研究
Pub Date : 2017-07-01 DOI: 10.9790/2402-1106035663
N. P. Okolie, A. Onifade, K. OladunmoyeM., D. Adegunloye
The study is to investigate the viability of corncob and rice chaff co-digested with goat and dog dungs in the production of biogas and the PCR detection of the methanogenic bacteria involved. The study was carried out at mesophillic condition between (29.5 –33 0 C) in a mini laboratory digester fabricated using guage 16 metal sheets with 80L capacity for a 90 days retention time. Corn cob and rice chaff were shredded and mixed with water with ratio 4:1 and 3:1 (waste to water) respectively and mixed with goat and dog dungs with ratio 2:1 (waste to water) and digested anaerobically. The proximate analysis of all the substratesused were carried out and the result shows a C:N (carbon, nitrogen ratio) that is appropriate for the biogas production. The result shows a yield of 15L after 20days at temperature 31 0 C and pH 6.2, there was a drop in the yield and then an increase from the 40th day of digestion. The cumulative production was 37L at temperature 31 0 C and pH 5.9. The bacteria isolated from the samples includes; E. coli, Proteusspp, Klebsiellapneumoniae,Serratia. spp, Flavimonas spp. The result revealed that this combination of substrates can yield significantly biogas.
本研究旨在探讨玉米芯和稻壳与羊粪和狗粪共消化在沼气生产中的生存能力及相关产甲烷菌的PCR检测。研究在(29.5 -33 0℃)的中温条件下,在一个小型实验室消化池中进行,该消化池使用容量为80L的16规格金属板制造,保留时间为90天。将玉米芯和稻壳切碎,分别以4:1和3:1(废水比)的比例与水混合,并以2:1(废水比)的比例与羊粪和狗粪混合厌氧消化。对所使用的所有基质进行了近似分析,结果表明C:N(碳氮比)适合沼气生产。结果表明,在温度为310℃、pH为6.2条件下,发酵20天后产量为15L,从消化第40天开始产量先下降后上升。在温度310℃、pH 5.9条件下,累计产量为37L。从样品中分离出的细菌包括;大肠杆菌,变形杆菌,克雷伯氏肺炎,沙雷氏菌。结果表明,这种底物组合可以产生显著的沼气。
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引用次数: 1
A Study on Various Pasting and Textural Parameters of Chana Flour Incorporated Extruded Product 木瓜粉掺入挤压制品糊化及质构参数的研究
Pub Date : 2017-06-01 DOI: 10.9790/2402-1106012934
D. K. Bhatt, S. Verma
Extrusion cooking technologies are used for cereal and protein processing in food products. In this study extruded products were prepared by using six different levels of chana flour i.e. 5%, 10%, 15%, 20%, 25% and 30% respectively. Among all the samples including the control one, the one which secured highest overall acceptability score was T5 (20% chana flour). Results found in this study showed that higher chana flour level could also contribute to the reduction in expansion and increased in bulk density. Study revealed that treated extrudates required more force to breakdown with increased level of chana flour. It is also the main source of protein hence incorporation of chana flour enhances the nutrient content of puff product. RVA analysis results indicate that the chana flour had low peak viscosity due to protein content and it is also showed that peak time increased with the increased level of protein.
挤压蒸煮技术用于食品中的谷物和蛋白质加工。本研究分别采用5%、10%、15%、20%、25%、30%等6种不同添加水平的chana粉制备膨化产品。在包括对照在内的所有样品中,总体可接受度得分最高的是T5(20%加纳粉)。研究结果表明,较高的chana面粉含量也有助于降低膨胀率,增加容重。研究表明,处理过的挤出物需要更多的力量,以打破与增加的加纳面粉水平。它也是蛋白质的主要来源,因此加入木瓜粉可以提高膨化产品的营养成分。RVA分析结果表明,受蛋白质含量的影响,木瓜粉的峰值粘度较低,峰值时间随蛋白质含量的增加而增加。
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引用次数: 0
Identification and Distribution of Mosquitoes in Kafin Hausa Local Government Area, Jigawa State, Nigeria 尼日利亚吉加瓦州Kafin Hausa地方政府区蚊子的鉴定和分布
Pub Date : 2017-06-01 DOI: 10.9790/2402-1106033033
Umar Ahmed, S. Zakariya
Studies were conducted to determine the identity and distribution of mosquito species in Kafin Hausa Local Government Area of Jigawa state, Nigeria. Samples of immature stages where collected from different kinds of breeding sites and reared in cages under laboratory settings until the emergence of fully formed adult mosquitoes. Five species of mosquitoes were morphologically identified. Three mosquito species viz. Culex pipiens, Culex quinquefasciatus and Culex molestus are the most predominant in the area. Aedes aegypti and Anopheles arabiensis were also identified, and constitute only 0.51% and 0.29% population respectively. All the species identified were found in man-made breeding sites and are potential vectors of vectors.
在尼日利亚吉加瓦州Kafin Hausa地方政府辖区开展了蚊虫种类鉴定和分布研究。从不同的孳生地点收集未成熟阶段的样本,在实验室环境下的笼子中饲养,直到完全形成的成蚊出现。形态学鉴定出5种蚊虫。蚊种以淡色库蚊、致倦库蚊和骚扰库蚊为主。埃及伊蚊和阿拉伯按蚊分别占种群总数的0.51%和0.29%。所有被鉴定的物种都是在人工繁殖地发现的,是病媒生物的潜在媒介。
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引用次数: 0
Reproductive Behaviour, Hematological Profile and Monogenean Microfauna of the Nest-Breeding, Nile Green Tilapia (Tilapia zilli) Gervais, 1848 繁殖行为,血清学特征和巢中繁殖的单系微型动物群,尼罗绿罗非鱼(罗非鱼齐利)Gervais, 1848
Pub Date : 2017-06-01 DOI: 10.9790/2402-1106015065
El‐Naggar, El-Tantawy Sa, M. Mi, A. Kanni
{"title":"Reproductive Behaviour, Hematological Profile and Monogenean Microfauna of the Nest-Breeding, Nile Green Tilapia (Tilapia zilli) Gervais, 1848","authors":"El‐Naggar, El-Tantawy Sa, M. Mi, A. Kanni","doi":"10.9790/2402-1106015065","DOIUrl":"https://doi.org/10.9790/2402-1106015065","url":null,"abstract":"","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"13 1","pages":"50-65"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87555892","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}
引用次数: 4
期刊
IOSR Journal of Environmental Science, Toxicology and Food Technology
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