21 research outputs found
The effects of household agricultural income on the adoption of electrical appliances and energy security among rural households in Mnquma Local Municipality
Energy security is critical to global economic development and agricultural activities. Electricity is one of the most beneficial types of energy for rural household livelihoods and smallholder producers in South Africa. This study aims to examine the effects of household agricultural income on the adoption of electrical appliances and energy security among agricultural households in Mnquma Local Municipality. The study employed primary data obtained from 224 households using simple random sampling technique across three electrification stages. Descriptive statistics, and binary logistic regression was used to determine the relationship between socio-economic and demographic characteristics of the household and the household agricultural income on the adoption of new electrical appliances and energy security across the three electrification stages. Descriptive statistics results indicated that non-electrified (67.1percent) and recently electrified (54.3percent) villages are dominated by female-headed households, while in electrified households there are more male head households (58.3percent). The results also show that among the households that have the highest total monthly income (greater than R15000), 34.5percent were electrified, 17.1 percent were recently electrified, and 4.3percent were non-electrified. The Binary logistic regression model's findings for the second objective revealed that household head factors such as age, monthly total household income, household size, and household agricultural income have significant effects on energy security. The study's findings revealed that household agricultural income has a significant impact at a 5 percent significant level on the adoption of electrical appliances. Binary logistic regression findings for the third objective revealed that on new electrical appliance adoption there was a significant effect of gender (at 5percent level), household size, energy security, and household agricultural income at a 1percent significance level. Binary logistic regression revealed that the coefficient of household size variable is positive and significant at a 1percent significant level on energy security and electrical appliance adoption. In this study, household agricultural income on the adoption of electrical appliances has been found to be the most critical factor influencing the energy security status of households among the selected rural households in Mnquma Local Municipality. As a result, policies must be put in place to facilitate access to electrical appliances through electrification programs, invention of affordable electric appliances, encourage participation in agricultural production and agricultural market access, that will provide households with social benefits. To improve energy security, electrical appliances should be simple to use and aid in the transition from biomass to electricity.Thesis (MAgric) -- Faculty of Science and Agriculture, 202
The effects of household agricultural income on the adoption of electrical appliances and energy security among rural households in Mnquma Local Municipality
Energy security is critical to global economic development and agricultural activities. Electricity is one of the most beneficial types of energy for rural household livelihoods and smallholder producers in South Africa. This study aims to examine the effects of household agricultural income on the adoption of electrical appliances and energy security among agricultural households in Mnquma Local Municipality. The study employed primary data obtained from 224 households using simple random sampling technique across three electrification stages. Descriptive statistics, and binary logistic regression was used to determine the relationship between socio-economic and demographic characteristics of the household and the household agricultural income on the adoption of new electrical appliances and energy security across the three electrification stages. Descriptive statistics results indicated that non-electrified (67.1percent) and recently electrified (54.3percent) villages are dominated by female-headed households, while in electrified households there are more male head households (58.3percent). The results also show that among the households that have the highest total monthly income (greater than R15000), 34.5percent were electrified, 17.1 percent were recently electrified, and 4.3percent were non-electrified. The Binary logistic regression model's findings for the second objective revealed that household head factors such as age, monthly total household income, household size, and household agricultural income have significant effects on energy security. The study's findings revealed that household agricultural income has a significant impact at a 5 percent significant level on the adoption of electrical appliances. Binary logistic regression findings for the third objective revealed that on new electrical appliance adoption there was a significant effect of gender (at 5percent level), household size, energy security, and household agricultural income at a 1percent significance level. Binary logistic regression revealed that the coefficient of household size variable is positive and significant at a 1percent significant level on energy security and electrical appliance adoption. In this study, household agricultural income on the adoption of electrical appliances has been found to be the most critical factor influencing the energy security status of households among the selected rural households in Mnquma Local Municipality. As a result, policies must be put in place to facilitate access to electrical appliances through electrification programs, invention of affordable electric appliances, encourage participation in agricultural production and agricultural market access, that will provide households with social benefits. To improve energy security, electrical appliances should be simple to use and aid in the transition from biomass to electricity.Thesis (MAgric) -- Faculty of Science and Agriculture, 202
Similarities and differences in placental development between humans and cynomolgus monkeys
Background:
The placenta is an extraembryonic organ, which is essential to maintain a normal pregnancy. However, placental development in humans is poorly understood because of technical and ethical reasons.
Methods:
We analyzed the anatomical localization of each trophoblastic subtype in the cynomolgus monkey placenta by immunohistochemistry in the early second trimester. Histological differences among the mouse, cynomolgus monkey, and human placenta were compared. The PubMed database was used to search for studies on placentation in rodents and primates.
Main findings:
The anatomical structures and subtypes of the placenta in cynomolgus monkeys are highly similar to those in humans, with the exception of fewer interstitial extravillous trophoblasts in cynomolgus monkeys.
Conclusion:
The cynomolgus monkey appears to be a good animal model to investigate human placentation.journal articl
Investigation of perioperative complications and obesity in laparotomized surgical cases
肥満は周術期合併症のリスク因子である。婦人科開腹手術症例において、肥満と周術期合併症発生率について検討した。2013年7月〜2017年1月に当科で行ったリンパ節郭清を含まない婦人科開腹手術375例を対象とし、WHO分類に基づいてUnderweight(BMI<18.5)、Normal weight(BMI18.5〜24.9)、Overweight(BMI25〜29.9)、Obese Ⅰ(BMI30〜34.9)、Obese Ⅱ(BMI35〜39.9)、Obese Ⅲ(BMI≧40)の6群に分類した。創部離開、創部感染、静脈血栓塞栓症、肺炎・無気肺、イレウス、腹腔内感染、血腫形成の7項目について後方視的に検討した。全ての群でイレウス、腹腔内感染の発症はみられなかった。Normal weight 4例、Obese Ⅰ 1例、Obese Ⅲ 1例に創部離開を認めたが、有意差はみられなかった。創部感染、静脈血栓塞栓症、血腫形成は肥満群での発症はみられなかった。手術加療が必要な肥満患者に対しては、十分な対策を講じることで周術期合併症を予防できることが示唆された。journal articl
Generation of a familial hypercholesterolemia model in non-human primate
Familial hypercholesterolemia (FH) is an inherited autosomal dominant disorder that is associated with a high plasma level of low-density lipoprotein (LDL) cholesterol, leading to an increased risk of cardiovascular diseases. To develop basic and translational research on FH, we here generated an FH model in a non-human primate (cynomolgus monkeys) by deleting the LDL receptor (LDLR) gene using the genome editing technique. Six LDLR knockout (KO) monkeys were produced, all of which were confirmed to have mutations in the LDLR gene by sequence analysis. The levels of plasma cholesterol and triglyceride were quite high in the monkeys, and were similar to those in FH patients with homozygous mutations in the LDLR gene. In addition, periocular xanthoma was observed only 1 year after birth. Lipoprotein profile analysis showed that the plasma very low-density lipoprotein and LDL were elevated, while the plasma high density lipoprotein was decreased in LDLR KO monkeys. The LDLR KO monkeys were also strongly resistant to medications for hypercholesterolemia. Taken together, we successfully generated a non-human primate model of hypercholesterolemia in which the phenotype is similar to that of homozygous FH patients.journal articl
Motion of a Droplet in the Airwasher : In the Case of Counter Flow
Motion of a droplet in the airwasher in the case of counter flow is considered. Particle is assumed small in size and spherical in shape. Stokes drag law is used as the interaction force between a particle and fluid. Single particle which starts from the origin at an upward initial velocity under the uniform flow is studied theoretically. As a result, a particle does not move so far in the direction upward to the flow in spite of the initial velocity. Even if a particle starts at arbitrary initial velocity, particle motion becomes soon same as fluid one.departmental bulletin pape
