scholarly journals MEASUREMENT OF CARBON MONOXIDE EMISSIONS FROM VEHICLES EXHAUST PIPE USING PORTABLE GAS DETECTOR

2019 ◽  
Vol 50 (3) ◽  
Author(s):  
H.A. Hassoon

Carbon monoxide (CO) contamination represents a major global concern. This study aimed to detect the concentration of CO, emitted from various vehicles exhausters which are important contributors in deteriorating air quality. The data was collected throughout the heavy parking period at Al- Jadyria campus in Baghdad University. The vehicles were classified into two main groups according to the type of gasoline they are filled with; including premium leaded and leaded free gasoline (PLG and LFG respectively), as well as engine size, odometer, brand and model. Seven low duty vehicles for each engine size (<1.6 to >2.0) liter were selected randomly. A portable gas detector type (Altair® 4X) was used to measure exhausted emission of CO during idle mode. The results showed that high mean levels of CO (206.111–939) ppm were observed within vehicles filled with PLG. In contrast, the vehicles filled with LFG had been detected with an observable decline (9.5714–21.5714) ppm. Also, a significant difference in gas concentration between fuel types was observed within various engine groups. This study recommended controlling these emissions and raising the concern of the government about the gasoline quality due to their adverse impact on human health and environment.

Author(s):  
Youngjun Park ◽  
Haekwon Chung ◽  
Sohyun Park

Aim: This study explores the changes in regular walking activities during the phases of the pandemic. Background: With the spread of COVID-19 transmission, people are refraining from going out, reducing their physical activity. In South Korea, COVID-19 broke out in the 4th week of 2020 and experienced the first cycle phases of the pandemic, such as outbreak, widespread, and decline. In response to the pandemic, the government encouraged voluntary participation in social distancing campaigns, and people reduced their outside activities. Methods: This article examines the decrease and increase of the Prevalence of Regular Walking (≥30 min of moderate walking a day, on ≥5 days a week) by the COVID-19 phases. This study is based on weekly walking data for 15 weeks in 2020, via the smartphone healthcare app, which is managed by 25 public health offices of the Seoul government. Results: According to the findings, the level of prevalence of regular walking (PRW) has a significant difference before and after the outbreak, and every interval of the four-stage COVID-19 phases, that is, pre-pandemic, initiation, acceleration, and deceleration. The level of PRW sharply decreased during initiation and acceleration intervals. In the deceleration interval of COVID-19, the PRW kept increasing, but it has not yet reached the same level as the previous year when the COVID-19 did not exist. Conclusions: As a preliminary study, this study explains empirically how COVID-19 changed PRW in Seoul. It would be helpful to enhance our understanding of the changes in physical inactivity in the pandemic period.


2018 ◽  
Vol 10 (10) ◽  
pp. 3759 ◽  
Author(s):  
Abebe Alemu ◽  
Hossein Azadi

These days, one of the global challenges is the growing demand for food. To be more specific, seafood bases play a key role in filling the nutritional requirements of human beings. In Africa (Ethiopia) the public expenses to improve productive capacity in aquatic food are increasing. Additionally, the expenses in dams and in fishers’ capacity building have increased households’ engagement in the fishery sector in Ethiopia. Cooperatives’ productive capacity has been strengthened by the government and other non-government organizations with the supply of fishing boats, refrigerators, fish nets and other office supplies. However, the effect of such public expenses in bringing changes in the households’ livelihood and welfare has never been assessed in this study area. This paper aims to investigate what motivates the households to fish and assess the effect of fisheries on the households’ livelihood and welfare. A structured survey consisting of 313 rural households was administered using trained enumerators in two kebeles located close to the Tekeze dam, Northern Ethiopia. The result indicates that socioeconomic characteristics, such as age (young), sex, education, and active family size were driving the households to fishing. Access to market and access to support are driving farmers to fisheries. There is a significant difference in fishing households’ income which is higher than non-fishing households. The results also indicate that there are lesser income inequalities among fishery households operating in cooperatives compared to private fishery households.


2007 ◽  
Vol 52 (173) ◽  
pp. 85-104 ◽  
Author(s):  
Yereli Burçin ◽  
Erdem Seçilmiş ◽  
Alparslan Başaran

The aim of this study is to examine the relationship between the shadow economy and public debt in Turkey. We elaborate on the questions regarding the negative effects of shadow economy on the sustainability of public debt observing the estimates about the size of shadow economy in Turkey. In the light of some scholars? estimates, we re-evaluate the macroeconomic situation of Turkey. At the core of the study, we discuss how the government borrowing policies would differ if the shadow economy was included into the legal system. In order to examine the effects of shadow economy on sustainability, we use various sustainability indicators. There is a significant difference observed between the calculations which take into account the volume of shadow economy as a share of economic system and those that exclude shadow economy as an exogenous variable. .


2021 ◽  
Vol 21 (1) ◽  
pp. 1-7
Author(s):  
Ogechi Cordelia Nwahia

This research work focused on analysis of cost and returns in rice production by USAID-MARKETS II project participants and non-participants in Ebonyi state, Nigeria. Multi-stage sampling procedure was employed to select 239 participants, and 252 non- participants for the study. Data were collected from primary source, and analyzed using Z statistic, Net Farm Income (NFI) and Returns Per Naira Invested (RNI). The result reveals that the Net Farm Income (NFI) obtained by USAID-MARKETS II project participants, and non-participants were N493, 067.55/ha, and N353, 408. 12/ha respectively while the return on investment obtained by them were N3.28k, and N3.05k respectively. There was a significant difference between the profits obtained by them. Therefore, this study recommended that the teaming unemployed Nigerian youth should be encourage by the government, and international agencies through provision of grant/loan to take up rice farming as a business.


Author(s):  
M. N. Chukwu ◽  
S. J. Kadafur

The study examines the strength of environmental education in Lekki-Lagos and its impact on community and grass-root development by considering a targeted sample population comprising some respondents that are living or working in Lekki community in Lagos. A qualitative survey was conducted using participatory observation, interviews, and a structured questionnaire. The questionnaire was validated through peer review and pilot testing. Data collected were summarized and computed using descriptive statistics while a paired t-test and Turkey’s HSD test were used for further analysis. Results showed that 92% of the respondents affirmed that environmental education impacted positively on the community attracting the government, non-governmental and private organizations to help in developing the area through construction of roads, pedestrian bridges, drainages and sea embankments thus reducing flooding, man hour loss due to traffic jam and rate of pollution. There was also a decrease in loss of lives and properties. Investors were attracted to Lekki, reducing poverty and social imbalance thus increasing community development. There is a significant difference between the state of Lekki now and before the intervention of public-private practice in developing the area (P< 0.05). It is recommended that the government and other stakeholders should collaborate on a higher scale to enhance developing the unreached communities.


Author(s):  
Ayman Aied Mohammed Mamdouh, Essa Ahmad Alfaifi

This study aims at identifying the Effect of Using Technology and Modern Techniques (Ayat) that is based on the connectivism theory, in developing Quran recitation skills among curriculum's students of secondary school in Saudi Arabia. In order to achieve the study's objectives, the researcher uses the semi-experimental method. The study examines a sample of (71) students of secondary school curriculum system in the first semester of the academic year 1438H - 1439H in the government schools in Riyadh. They were divided into two equal groups (experimental and control). Students of the experimental group were taught according to the software program based on connectivism theory, and the others were taught in the traditional way. An oral test is used as a study tool to measure the existence of recitation skills (correct reading, smooth reading, recitation, and chanting), and to measure the Effect of Using Technology and Modern Technique in developing these skills. After analyzing the statistical data, the results of the study indicated the Effect of Using of the Modern Techniques, based on the connectivism theory, in the development of recitation skills (correct reading, smooth reading, recitation, and chanting) among curriculum's students of secondary school in Saudi Arabia. The study also showed a statistically significant difference of (0.05) between the average scores of the two groups in the post-measurement of the recitation test in the recitation skills such as (correct reading, smooth reading, recitation, and chanting) after adjusting the pre-measurement.


Author(s):  
Dr. Thadei A. Kiwango

This paper determines the impact of modelling technology integration for of out-of-school (OST) learning on academic achievement in primary schools. The research was conducted in Arusha Region, specifically in Meru District. The paper adopted the experimental design, involving experimental and control groups. Each of the two groups comprised three (3) schools, making a total of six (6) schools. The experiment was conducted using Digital Video Disks (DVDs), mobile phones, notebooks and home assignment booklets. The tools were further supplemented by a list of perceived best practices, and examination papers. The findings reveal a statistically significant difference in mean scores between the control and experimental groups as confirmed by 95% confidence level whereby, F (1, 180) = 28.63, p=0. Based on the findings, null hypothesis was rejected, leading to the conclusion that the proposed model for OST technology integration is attributed to significant improvements in academic achievement for primary school OST learners. The implication of these findings is for researchers, and other educational stakeholders, including the government to invest in devising contextually relevant model, and mobilizing parents, teachers and learners with a view to hastening technology integration in order to improve academic achievements for primary school pupils. There is also a need for studies that further explore technology integration opportunities, and associated challenges in a bid to addressing poor academic performance among primary school pupils.


Author(s):  
Abimbola Foluso OJAPINWA,

This study investigated the effect of self-efficacy on self-employment intentions of recent graduates. Using the descriptive survey research design, the study population includes National Youth Service Corps (NYSC) members of Ojo Local Government area of Lagos state. A sample of 130 was selected using the purposive sampling technique. The formulated hypotheses were tested using the simple linear regression and the independent sample t-test. The results showed that there was a statistically significant influence of self-efficacy on self-employment intention of Corps members of Ojo local government, Lagos state. A significant regression coefficient was found F (1.128)=29.72, p<.05), with R2 of .19. This presupposes that19.0% of the variance in self-employment intentions is as a result of the self-efficacy of recent graduates. Also, a statistically significant difference in the self-employment intentions were found between male and female corps members (tcal(128) = 2.11 is greater than ttab=1.98, p < .05). The study therefore recommended, amongst others, that institutions and the government should educate and devise a means by which they can increase the level of graduates and students’ self-efficacy which in turn will help shape their intention towards shaping career options after graduation. Similarly, effective entrepreneurship education and training for students and graduates to enhance their efficacy in performing specific tasks and roles of an entrepreneur will go a long way in boosting their self-employment intention and also aids them towards post graduate job creation ability rather than job seekers


Author(s):  
Dyah Dyah Dewi ◽  
Wiwik Wiwik Kusumawati ◽  
Ismarwati Ismarwati Ismarwati

Background: Maternal Mortality Rate (MMR) as an indicator of maternal health during pregnancy, childbirth, and childbirth. Anemia contributes 20% to the incidence of maternal deaths caused by bleeding during labor. The government prevents anemia by giving iron tablets at least 90 tablets for pregnant women. However, the prevalence of anemia remains high, because of the low adherence in consuming Fe tablets every day. Self-efficacy adherence is a predictor of health behavior and adherence to treatment.Objective: To improve adherence with self-efficacy in consuming Fe tablets in pregnant women with health promotion and WhatsApp reminder in Yogyakarta City Health Center.Method: This study used a quasi-experiment method with a pre-test post-test non-equivalent control group design. The sample amounted to 59, the sampling technique used was consecutive sampling which was taken by random sampling technique in which samples were taken alternately to determine the intervention group and the control group.Results: There were significant differences in the self efficacy score between the intervention groups (Mean = 6.30, SD = 8.11) and the control group (Mean = 0.89, SD = 7.83) with t-test = 2.60 and ρ = 0.012.Conclusion: There is a significant difference in self-efficacy adherence with consuming Fe tablets in pregnant women before and after being given health promotion and WhatsApp reminder intervention and control groups. Health service agencies can consider the combined service between health promotion and WhatsApp reminder to improve self-efficacy in adhering to consuming Fe tablets in increasing Hb levels in anemic pregnant women.


2021 ◽  
pp. tobaccocontrol-2020-056131
Author(s):  
Jungmi Jun ◽  
Sei-Hill Kim ◽  
James Thrasher ◽  
Yoo Jin Cho ◽  
Yu-Jin Heo

BackgroundWe analyse news representations of the regulation of heated tobacco products (HTPs) in South Korea, the country where HTP use is among the highest in the world despite conflicts between the government and the HTP manufacturers.MethodsWe analysed a total of 571 print and TV news covering HTP regulations, published between 2017 and 2018, the time period when HTPs were introduced to the country and various regulations of HTPs were proposed and implemented. We assessed the prevalence and associations among specific types of HTP regulations that were discussed, valence towards regulation, sources, framing of the relative health risks/benefits of HTPs compared with conventional cigarettes.ResultsTaxation (55.2%) and warning labels (25.7%) were two regulation topics covered the most. Almost equal proportions of pro-regulation (2.5%) and anti-regulation valence (2.2%) were found in taxation-related news, while pro-regulation valence appeared more frequently for other restrictions, including warning labels (pro=9.5% vs anti=1.4%), marketing restrictions (pro=6.9% vs anti=0%) and integration of HTPs into smoke-free policies for cigarettes (pro=8.7% vs anti=0%). The government (59%), followed by the tobacco industry (39.4%), was the source cited most often across news stories while the presence of tobacco control advocates was low (4.9%). As for framing, there was no significant difference in the prevalence of stories mentioning reduced harm (31.7%) and equal or more harm (33.6%) of HTPs compared with cigarettes.ConclusionsWe provide implications for governments and tobacco control advocates on building consensus for applying cigarette equivalent taxes and pictorial warning labels to HTPs.


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