International Journal of Scientific Research Updates最新文献_第9页

Study design and implementation of a pyrolysis device for the production of fuel and gas from plastic waste 研究设计和实现一种从塑料废物中生产燃料和气体的热解装置

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0153

Nahed Hassan Farhoud, Elham Munir Baddour, Isam Mohammed Abdel-Magid

{"title":"Study design and implementation of a pyrolysis device for the production of fuel and gas from plastic waste","authors":"Nahed Hassan Farhoud, Elham Munir Baddour, Isam Mohammed Abdel-Magid","doi":"10.53430/ijsru.2022.4.2.0153","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.2.0153","url":null,"abstract":"In this study, a local pyrolysis system was created to recover oil from used polypropylene (PP) plastic waste for the production of fuel and gas. The system was initially tested with two kilograms of waste plastic for three hours. This technique displays various sustainable development in terms of energy, using gas as the primary source of heat and using gas created throughout the process as a secondary or auxiliary source to hasten the decomposition process. The reactor chamber's original size could not support the pressure needed for the pyrolysis process. The second experiment was modified to have the following dimensions: height (30 cm), diameter (15 cm), and thickness (5 mm) resulting in a volume of 5301.44 cm3. A volume of one liter of liquid fuel, grease, and gas in various percentages of 80%, 10%, and 10%, respectively, was produced from one kilogram of type (PP) waste. Additionally, the heat pressure inside the chamber rises as the pyrolysis breakdown temperature grows. The research recommends utilizing catalysts in the pyrolysis of (PP) production to reduce the temperature necessary to break the bonds between hydrocarbon molecules. It is necessary to carry out an isolation process for plastic waste before the pyrolysis process. It is preferred to physically treat plastic waste, such as shredding and cutting it into little pieces before using it and depositing it in a pyrolysis device, while also adhering to occupational safety and security regulations.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131428364","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: 0

Use of earthworm (Eisenia fetida) meal as a supplement for feeding tilapia juveniles (Oreochromis niloticus) 使用蚯蚓(Eisenia fetida)粉作为罗非鱼幼鱼(Oreochromis niloticus)的补充饲料

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0154

Silvio Cesar Pimentel Russio, Israel Luz Cardoso, Giovanni Henrique Ferri, Larissa Caroline Silva, Julio Ferraz de Queiroz, Marcos Alexandre Ivo, Márcia Mayumi Ishikawa

{"title":"Use of earthworm (Eisenia fetida) meal as a supplement for feeding tilapia juveniles (Oreochromis niloticus)","authors":"Silvio Cesar Pimentel Russio, Israel Luz Cardoso, Giovanni Henrique Ferri, Larissa Caroline Silva, Julio Ferraz de Queiroz, Marcos Alexandre Ivo, Márcia Mayumi Ishikawa","doi":"10.53430/ijsru.2022.4.2.0154","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.2.0154","url":null,"abstract":"Earthworm meal comprises a class of food additives with potential to replace or supplement conventional proteins used in fish feed. Considering the potential of earthworm meal, as a protein source for fish feed, this study aimed to investigate the productive performance and the hematological profile of Nile tilapia juveniles fed with a commercial diet enriched with earthworm meal at levels (0.0; 5.0, 10 and 20%). The assay was conducted for 32 days and the productive performance and hematology profile of the animals were evaluated. Tilapia juveniles (n=144; 25.30±3.27g) were distributed in 12 aquariums (300 L) in a static system with partial water changes. The experimental design was completely randomized with four treatments and three replications. There were no significant differences (p>0.05) for performance responses and hematological profile related to variables on hematocrit and CHCM. However, for hemoglobin values the treatment with 20% earthworm meal was similar to the treatments with 5 and 10% earthworm meal, and significantly differed from the control treatment, suggesting its potential as a fish feed supplement. Thus, earthworm meal can be used at 5, 10, and 20% as a supplement for Nile tilapia juveniles without compromising their performance and hematological profile.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123647880","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: 0

Risk factors associated with salmonella prevalence among food vendors in southern Taraba, north-east, Nigeria 尼日利亚东北部塔拉巴南部食品摊贩中沙门氏菌流行的相关风险因素

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0161

Edobor Peter Kenneth Imarenezor, Onolunosen Abel Abhadionmhen, Samuel Tamuno Cockeye Brown

{"title":"Risk factors associated with salmonella prevalence among food vendors in southern Taraba, north-east, Nigeria","authors":"Edobor Peter Kenneth Imarenezor, Onolunosen Abel Abhadionmhen, Samuel Tamuno Cockeye Brown","doi":"10.53430/ijsru.2022.4.2.0161","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.2.0161","url":null,"abstract":"Humans are active and asymptomatic carriers of Salmonella and food vendors play a significant role in the effective transmission of the food pathogen. This research investigated the prevalence of Salmonella along with its associated risk factors among food vendors in Donga, Ibi, Takum, and Wukari towns. Using standard microbiological procedures and techniques, blood and stool samples was obtained from 200 mobile and stationed food vendors. Upon analysis, 22 out of the collected samples were positive giving a record prevalence of 11%. Six (6) (Donga 0; Ibi 3; Takum 1; Wukari 2) of the positive samples were of the Typhoidal serovar. Apart from Ibi and Takum which recorded 4 positive cases each from the 16 isolated Non-Typhoidal Salmonella (NTS) from food handlers, the highest (5) isolates were from Donga, while the lowest was from Wukari with a total of 3 positive isolates. Poor food-handling training as well as unprofessional food handling attitude and practices observed among food handlers were identified as significant risk factors associated with the prevalence of Salmonella infection among this population. Hence, deliberate efforts should be initiated by Local Health Authorities in regulating the activities of food vendors by way of periodic medical screening of food handlers. Also, community-driven health promotion practices including behavioral change communication geared towards preventing microbial contamination of foods should be considered.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130601740","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: 0

Spatio-temporal variation of bacteria of the Vibrio and Pseudomonas genera in some underground water points developed in the locality of Ombessa (Department of Mbam-et-Inoubou, Center-Cameroon) Ombessa地区(喀麦隆中部mbamet - inouou省)地下水点弧菌属和假单胞菌属细菌的时空变化

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0144

Samuel-Davy/ Baleng, Olive- Vivien-Noah/Ewoti, Serge- Ronny-Ott/ Song, Claire-Stéphane /Metsopkeng, Morelle-Raisa- Tagne /Djiala, Maximillienne- Ascencion/Nyegue, Moïse Nola

{"title":"Spatio-temporal variation of bacteria of the Vibrio and Pseudomonas genera in some underground water points developed in the locality of Ombessa (Department of Mbam-et-Inoubou, Center-Cameroon)","authors":"Samuel-Davy/ Baleng, Olive- Vivien-Noah/Ewoti, Serge- Ronny-Ott/ Song, Claire-Stéphane /Metsopkeng, Morelle-Raisa- Tagne /Djiala, Maximillienne- Ascencion/Nyegue, Moïse Nola","doi":"10.53430/ijsru.2022.4.2.0144","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.2.0144","url":null,"abstract":"A study aimed at evaluating the seasonal variation of Vibrio and Pseudomonas in groundwater in the city of Ombessa, Center region of Cameroon was conducted from January to July 2021. The microorganisms sought were Aerobic Mesophilic Bacteria BHAMs, bacteria of the Vibrio and Pseudomonas genera. These bacteria were isolated from 10 groundwater points by the surface spreading technique for BHAM and the membrane filter method for Vibrio and Pseudomonas. Plate count agar was used for BHAMs, TCBS medium for Vibrio and Cetrimide agar for Pseudomonas. Some abiotic parameters such as temperature, pH, were measured using the usual techniques. The data obtained was analyzed using the appropriate software. Correlation and comparison tests between the variables were carried out. It shows that the water studied has a pH of 5.94 UC to 7.9 UC, the content of dissolved O2 reached 5 mg/L, and there are positive and significant correlations between the density of isolated bacteria and the levels of physicochemical variables. Two species of the genus Pseudomonas (aeruginosa and fluorescens) and four of the genus Vibrio (cholerea, alginolyticus, vulnificus and parahaemolyticus) were isolated, with variable abundance rates ranges from 194 to 898 CFU/100mL for Pseudomonas and from 58 to 683 CFU/100mL for Vibrio. The presence of these germs in groundwater can be explain by the proximity of sources of pollution. This water would be unfit for human consumption without prior treatment according to the World Health Organization standard.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132830439","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: 0

Rubella-specific IgG antibodies in non-pregnant women in Rivers State, Nigeria 尼日利亚河流州非孕妇风疹特异性IgG抗体

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0130

Chisom Chimbundum Adim, Hope Chioma Innocent-Adiele, Ngozi Nma Odu, Iheanyi Omezuruike Okonko

引用次数: 0

Dual positivity of HIV and anti-HCV in the highly infected population of Rivers State, Nigeria 尼日利亚河流州高感染人群中艾滋病毒和抗丙肝病毒双重阳性

International Journal of Scientific Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijsru.2022.4.2.0072

Iheanyi Omezuruike Okonko, Tochi Ifeoma Cookey, Hope Chioma Innocent-Adiele

{"title":"Dual positivity of HIV and anti-HCV in the highly infected population of Rivers State, Nigeria","authors":"Iheanyi Omezuruike Okonko, Tochi Ifeoma Cookey, Hope Chioma Innocent-Adiele","doi":"10.53430/ijsru.2022.4.2.0072","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.2.0072","url":null,"abstract":"The study looked to establish dual positivity of human immunodeficiency virus (HIV) and anti-hepatitis C virus (HCV) antibody among HIV-infected individuals in Port Harcourt, Nigeria. Plasma samples from 89 HIV-infected individuals presenting at the Retroviral Clinic of the University of Port Harcourt Teaching Hospital (UPTH), Rivers State, Nigeria, were assayed for anti-HCV-antibody. Seropositivity of anti-HCV-antibody was detected with ELISA kits. Variables tested include sex, age group, educational status, marital status and occupation. Significant variance (p<0.05) existed between patients with mono-HIV infection and those with dual infection of HIV and HCV. Of these infections, 20(22.5%) had HIV and HCV dual infection, while 69(77.5%) had HIV mono-infection. Higher seroprevalence of HIV was found in females [65(73.0%)] than males [24(27.0%)]. The highest seroprevalence of HIV was found in the age group 41-60 years [41(46.1%)], and the age-group 20-30 years had the least prevalence [19(21.3%)]. Also, females had higher HIV and HCV dual positivity (23.1%) than males (20.8%). The age group 31-40 years in this study had the highest HIV and HCV dual positivity (34.5%), while the age group 41-60 years had the lowest prevalence (12.2%). Regarding marital status, singles constituted most study participants and had a dual positivity rate of 28.6% for HIV and HCV. This dual positivity was higher than those divorced and married, with 20.0% and 14.3% prevalence, respectively. Patients with tertiary education (27.3%) and those employed (41.2%) had a higher prevalence than others. None of these demographic characteristics was significantly associated with HIV-HCV dual positivity (p>0.05) except for occupations (p=0.04). Our study further confirms the dual positivity of HIV and anti-HCV in Rivers State, Nigeria. Planned prevention, screening, and treatment are required to reduce further transmission and morbidity.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133943089","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: 1

LC-MS analysis and free radical scavenging activity of extracts from Anogeissus leiocarpus (DC.) Guill. & Perr. and Sansiviera liberica Gerome & Labroy 黑果提取物的LC-MS分析及自由基清除活性研究Guill。&穗青葱。以及Sansiviera liberica Gerome & Labroy

International Journal of Scientific Research Updates Pub Date : 2022-09-30 DOI: 10.53430/ijsru.2022.4.1.0060

Oloyede GK, Oluwayelu DO, Onocha PA, Oyelola M, Spiteller M

引用次数: 0

A field and laboratory study for effect of heat on some chemical properties of soils of Northeastern of Libya 热对利比亚东北部土壤某些化学性质影响的田间和室内研究

International Journal of Scientific Research Updates Pub Date : 2022-09-30 DOI: 10.53430/ijsru.2022.4.1.0136

Eldiabani Gibrel Salah, Hale William H.G, Heron Carl P

{"title":"A field and laboratory study for effect of heat on some chemical properties of soils of Northeastern of Libya","authors":"Eldiabani Gibrel Salah, Hale William H.G, Heron Carl P","doi":"10.53430/ijsru.2022.4.1.0136","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.1.0136","url":null,"abstract":"Libya is one of semi-arid regions in the world except in a small area called (Aljabal Alakhdar) forests. It is the only wet area in Libya. This region exposing to encroachments such as burning parts of it to convert trees to charcoal trees and other purposes. The aim of this study is to evaluate the effects of heat on chemical properties of soil of Aljabal Alakhdar. The chemical properties of soil following heat in two geographic areas were determined in one coastal (old burned) and one mountain site (recently burned). The properties studied were: soil moisture content, soil particle size, soil electrical conductivity (EC), soil pH and soluble Na, K, Ca and Mg, a soluble Cl, HCO3 and SO4. The results showed except for the soil particle size, heat has a clear effect on the soils in the two studied areas. It is particularly interesting to note that many of the results when assessed by ANOVA, showed these properties were affected by heat and very few of the data sets proved to be showing no or low significance due to the effect of heat. This is still true at the coastal site even though the burned area there affected by heat several years ago. However, the affected parameters showed a recovery towards unburned levels with time, being less strongly different in the coastal site than in the mountain site. Many of these effects are pronounced in the upper soil layer, reflecting the rapid decline in temperatures with soil depth.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124079791","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: 0

Factors influencing generation of domestic solid wastes in Kisii Town, Kenya 肯尼亚Kisii镇影响生活固体废物产生的因素

International Journal of Scientific Research Updates Pub Date : 2022-09-30 DOI: 10.53430/ijsru.2022.4.1.0057

Naftal Omonywa Mecheo

{"title":"Factors influencing generation of domestic solid wastes in Kisii Town, Kenya","authors":"Naftal Omonywa Mecheo","doi":"10.53430/ijsru.2022.4.1.0057","DOIUrl":"https://doi.org/10.53430/ijsru.2022.4.1.0057","url":null,"abstract":"Domestic solid waste management (DSW) has been a critical problem in many urban centres in developing countries, including in middle sized towns. This paper investigates the factors influencing the generation of domestic solid waste in residential estates of Kisii town. The specific objective of the study included: to investigate the factors influencing the generation of DSW in residential estates in Kisii town. A mixed methodology approach was taken into consideration. A data sample of 110 households was obtained using the multi stage stratified sampling method from a target population of 20,000 households. Data collection methods of the sampled size involved the use of questionnaires to the householders and direct interviews to county officers in charge of DSW and observation integrated with photography. Data analysis was carried out using methods such as use of tables, use of graphs through SPSS, and other descriptive statistics such as the use of the measures of central tendency were taken into consideration. The results found that various factors including the size of the family 83.7% and the level of income 9.7% influenced the generation of domestic solid waste in the residential areas. In conclusion various factors influence the generation of DSW and the major one is family size. It is therefore recommended that, residents should be sensitized to purchase and cook what they can consume to reduce the excesses which surmount to DSW especially food remains.","PeriodicalId":394579,"journal":{"name":"International Journal of Scientific Research Updates","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130975507","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: 0

Every month: The result of premenstrual dysmorphic disorders 每月:经前畸形障碍的结果

International Journal of Scientific Research Updates Pub Date : 2022-09-30 DOI: 10.53430/ijsru.2022.4.1.0127

Edna Aurelus

引用次数: 0