Rapid urbanization accelerates the rate of carbon emissions (CE), resulting in unfavorable fluctuating in climatic conditions of urban settings. One of the prominent reasons behind these climatic anomalies is the direct result of CO2 emission and heat-trapping gasses from industries and urban built-up areas. This study addresses the ongoing CE issues in Khulna City by analyzing CE from residential, commercial, and industrial land use. Moreover, the study explores diverse sources of CE from intense energy consumption using electricity, gas, fuel, and wood. Consequently, the carbon footprint (CF) has been estimated using specific CE coefficients for each landuse category. Specific concentration of CE for each landuse category is demonstrated on maps using geospatial and kernel density applications. Results suggested Khulna Citys monthly CE have been estimated 55,536,435kg from residential, 14,612,942kg from commercial and 2,606,823kg from industrial land use. From residential landuse, ea.....

31 hits

This work aimed to investigate, for the first time, the chemical composition and cytotoxicity of Dillenia reticulata King's essential oil. The essential oil was obtained through hydrodistillation, and its volatile components were analyzed through gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS) techniques. Twelve components, which constitutes more than 99.49% of oil content, were successfully identified. The most prominent components were bicyclogermacrene (44.18%), germacrene D (14.49%), ?-gurjunene (12.59%), and elemol (12.25%). The cytotoxicity of essential oil was evaluated using an MTT assay. The essential oil exhibited cytotoxicity against three cancer cell lines which are HepG2, MCF7 and A549 with the IC50 values ranging from 61.5-68.5 ?g/mL. The present study highlights the potential of using essential oil as an alternative for the development of chemopreventive or cosmetic agents for the pharmaceutical industry. 2023 Chemical Society of Ethiopia an.....

43 hits

Microgreens have been chosen as a sustainable dietary staple food due to their high nutritional value and short harvesting time. However, researches about the actual comparison of the nutritional value between microgreens and their respective adult vegetables is still missing. Furthermore, in a hydroponic system, chitosan nanoparticles (CNPs) can be used as an alternative sustainable nutrient formulation to the conventional/basic nutrient formulation solution. As a result, in this study, the quality, yield and nutritional content of hydroponically cultured microgreens versus adult of Bok Choy (Brassica rapa subsp. Chinensis (L.) Hanelt) vegetables were examined and evaluated in response to CNPs treatments and/or fertilizer supplementation that were grown under the same conditions and environments. CNPs have shown incredible potential as a sustainable alternative nutrient supplement in the growth of Bok Choy microgreens and adults. The nutritional value results backed up these claims as.....

44 hits

A solar dryer hybrid photovoltaic thermal (PV/T) system has been designed, built and its performance has been studied. This research aims to develop a stand-alone solar dyer system, portable and less maintenance. This system consists of three main parts; PV/T system with configuration-Z thermal absorber plate, multi-direction solar collector with cross absorber plate and drying chamber. The designed system is named multi-direction solar collector as the solar radiates through upper and around the sides. This situation may increase the amount of heat that will absorb by the absorber plate. Six sets of cross absorber plates were used in the multi-direction solar collector and they were assembled row by row. PV/T airflow uses configuration-Z absorber plate which is placed under the photovoltaic (PV) module. The amount of heat produced from the PV/T configuration-Z is used as the pre-heat before the hot air flows to the multi-direction solar collector, while electric energy from PV is used.....

43 hits

The purpose of this study was to examine the impact of sedentary stay at home due to the covid-19 pandemic on physical fitness and to examine the effects of home-based physical activity on physical fitness levels during the covid-19 crisis in Indonesia. This study used a mixed method sequential exploration design consisting of a quantitative stage and a qualitative stage. The sample used was 228 children and adolescents aged 5-17 years, n = 143 adults and elderly > 17, n = 85 people, participated in this study voluntarily. Sampling was carried out for the experimental group at random (n: 143) and the control group (n: 85). The experimental group engaged in 8 weeks of home-based physical activity delivered in person and via WhatsApp groups. Data were collected through the Indonesian Physical Fitness Test and semi-structured interview questions. Data analysis using a two-way mixed ANOVA was used to determine the effect of home-based physical activity carried out for 8 weeks with a durati.....

49 hits

The technology acceptance model (TAM) is an information systems model that models how consumers use and accept technology. Scholars have implemented TAM widely to examine the effectiveness and ease of use of online learning. Therefore, this analysis comprehensively analyses TAMs role in accepting online learning platforms by conducting bibliometric and content analysis based on the PRISMA framework. Insights into technology acceptance models were determined by bibliometrics analysis with VosViewer and content analysis. Methods: This study expanded all research from 2002 to 2020. A sum of 120 publications was analysed in January 2022 as documented in the Scopus database after applying the including and excluding criteria in addition to the manual evaluation. Results: This reviews findings identified the most compelling subjects covered by the journal. Most prolific countries, educational institutions, Journals, and authors were identified. Additionally, the results demonstrate several s.....

44 hits

A diagnosis of a chronic illness, such as cancer, can lead to a crisis in one's life. Although cancer patients face many biopsychosocial challenges, the literature has pointed to resilience as a key factor in coming to terms with the diagnosis and treatment. Though resilience has been discussed in various disciplines, and also from a socio-cultural perspective, there is still no universal consensus about its defining features. Furthermore, most studies have employed a quantitative approach in the understanding of what causes resilience. This qualitative study discusses the results of interviews among 18 Malaysian women with breast cancer, exploring what made these woman resilient. A thematic analysis uncovered seven themes related to the participants pathways towards resilience: drastic changes of body-image; self-reflection; spiritual resources; restoration of confidence; informal and formal support; and life appreciation. This study is vital to understanding the impact that resilienc.....

39 hits

The virtual and digital learning process seems to hugely impact academic achievement due to the COVID-19 outbreak, globally. Thus, improving student performance is one of the important focuses of educational management. Mapping students actual conditions is a mandatory requirement before designing the performance improvement program. Therefore, this study proposed a statistical investigation to map out students performance and the problems they encountered during online learning using Multiple Correspondence Analysis (MCA), revealing the hidden pattern and classifying students based on their demographics (programs, CGPA, and origin) and learning environments. The data samples consist of 234 undergraduate students in the Department of Mathematics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris (UPSI). The study findings formed from two different profiles where each profile has its respective categories. The study found that the students of the Bachelor of Educati.....

38 hits

This study estimates the threshold level of the relationship between fiscal deficit and public expenditure in the United Arab Emirates (UAE) based on the public expenditure Kuznets curve (PEKC) hypothesis during the 1975-2020 period. Employing the autoregressive distributed lag (ARDL) bound testing approach, the results indicate the existence of an inverted U-shaped PECK. In other words, public expenditure-fiscal deficit relationship exhibits an inverted U-shaped in the long-run, feature with public expenditure ex-panding in the early phases of rising fiscal deficit, and falling in the latter phases. Using the quadratic specification, the threshold of 22.45 percent is obtained for fiscal deficit (as a share of the GDP), and Dh. 6.583 billion for public expenditure. Moreover, the results illustrate that oil price, outflow of money, FDI outflow and interest rate are other important determinants of public expenditure in the country. Based on this evidence, policies aimed at reducing fisca.....

53 hits

Due to the widespread use of the Internet, digital space has now pervaded schools. This study aimed to investigate student-teachers perspectives and experiences of digital citizenship through project-based learning in a teacher institution in Indonesia. A case study research design was employed using content analysis to analyze the data from semi-structured interviews, observation, and daily journal report. The results showed that technology overuse requires moral guidance in terms of digital citizenship. The student-teachers viewed that digital citizenship provides some principles that encompass knowledge, skills, and appropriate behavior to use technology safely and responsibly. They asserted that digital citizenship is a necessary skill for prospective teachers, particularly considering the growing demand for schools to develop character education programs that address the topic of student technology use. After engaging in digital-issue-driven project-based learning, the student-tea.....

68 hits