Self-efficacy is one of the factors that affect learning achievement. This study has the aim of analyzing the self-efficacy profile of students in learning using Chemdroid (Chemistry on Android) ...media. This media is an android-based media for Thermochemical material. This research is descriptive research with a quantitative approach. The classes used in this study were 2 classes with 60 students. Both are randomly selected. The first class is the control class (C-Class) which carries out hybrid learning, as usual, namely face-to-face in class and online learning using WhatsApp groups. The second class is the experimental class (E-Class) with face-to-face in class and using Chemdroid media. The learning time and the teacher in this study were the same. The instrument used is a self-efficacy measuring instrument consisting of 3 main aspects with 22 statements adapted from previous research. The results of the study were then analyzed and categorized into 5 categories. The results obtained indicate that the profile of students’ self-efficacy of E-Class students is higher than other class.
Many factors can affect the quality of river water in DIY, both the activities of the population and industry. Several river water quality parameters that can be used to determine the health ...condition of river water are Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). This study tested the effect of TSS and DO on BOD and COD in 10 rivers in DIY. The method used is multiple linear regression modeling. Based on hypothesis testing in multiple linear regression with a significance level of 5%, it is found that TSS and DO significantly affect BOD and COD conditions in 2019. Furthermore, in 2020 only DO significantly affects COD. The prediction result is that if TSS is high then BOD and COD will be predicted to have high value. If DO is high then COD and BOD will be predicted to be low.
Abstract
The increase in population will encourage the community to transfer the function of agricultural land in the Malino sub-watershed. Land use dramatically affects the level of erosion and ...sedimentation. The use of SWAT models can identify, assess, and evaluate the extent of a watershed’s problems. This study aims to determine the spatial distribution of HRU and analyze the rate of erosion and sedimentation in the Malino sub-watershed. The results showed that the most HRU is found in secondary dryland forests, as much as 624 HRU (32.21%). The level of erosion rate of the category is very light with an erosion value of 5.21 tons/ha/year, light 31.19 tons/ha/year, moderate 104.91 tons/ha/year, weight 267.10 tons/ha/year, and hefty 616.74 tons/ha/year. The most significant sedimentation rate was found in sub-watershed 18 of 71.97 tons/ha/year and subwatershed 10 of 13.31 tons/ha/year.
Clay soils are soils that have high shrinkage potential and have good carrying capacity in water unsaturated conditions but poor in water-saturated conditions. Clay soil has a low carrying capacity, ...so to increase the carrying capacity of the soil it needs to be stabilized by using an added material which is sand. Land used for 100% disturbed soil, 95% disturbed soil + 5% sand, 90% disturbed soil + 10% sand, 85% disturbed soil + 15% sand, with curing time 3,7,14, and 28 days. The mixture was tested using aunconfined compressive strength test instrument with SNI 03-6887-2002 method. The results of the unconfined compressive strength test showed that the increase in maximum soil strength occurred in the addition of 90% disturbed soil + 10% sand at the age of 28 days curing, which reached 1,194 kg/cm2. But the results of unconfined compressive strength increased when the mixture of 85% disturbed soil + 15% of sand reaching 1,348 kg / cm2. Based on testing that the more amount of sand is added, the higher the value of unconfined compressive strength obtained.
This article explores the construction of neo-exoticism discourses in Indonesian online news media. Drawing on online news media research, we show how the transformation of ethnic cultures in ...Banyuwangi, East Java, Indonesia were positioned as the basis of various tourism events using the representation theory with the discursive constructionist approach. We focus on how some Indonesian online news media reported and positioned Banyuwangi Festival through quotations of government’s official’s statements and descriptions of cultural events that emphasize the transformation of ethnic cultures to meet national and global tourism markets. In doing so, Indonesian online news media actively produced, promoted, and distributed discourses of neo exoticism by emphasizing the beauty of certain of traditional rites, fashions, and arts in various carnivals and festivals. In addition, the media constructed neo-exoticism discourses as a formulas to popularize cultural and touristic events which proved to be beneficial, economically, for local people. However, we argue that broadcasting neo-exotic narratives also created online news media discursive subjects that normalize tourism regimes as managed by the cooperation of government and investors.
Background: Aged skin is characterized by wrinkles, hyperpigmentation, and roughness. Collagen is the most abundant protein in our body and it’s responsible for skin health and it’s mostly influenced ...by factors that accelerated aging such as UV.
Objective: This study aimed to identify the potential use of collagen as skin supplementation and the challenges and strategies for its delivery.
Methods: The articles were first searched through the existing database with the keyword of “collagen antiaging”. The 585 articles were then screened by year of publication (2012-2022) resulted in 475 articles. The articles were then selected based on the delivery of collagen either orally or topically, resulted in 12 articles for further analysis.
Results: Collagen has important roles in skin physiology by involving some mechanisms through inhibition of Mitogen-Activated Protein Kinase, induction of Tissue Growth Factor β (TGF-β), and inhibition of Nuclear Factor kappa beta (NF-κβ). The oral administration of collagen has an effective biological activity but requires large doses (up to 5 g daily). Meanwhile, the topical administration of collagen is limited by poor permeability due to high molecular weight (±300 kDa). Several strategies need to be carried out mainly by physical modification such as hydrolyzed collagen or entrapment of collagen using a suitable delivery system.
Conclusions: Collagen could improve the skin properties, but further research should be conducted to increase its penetration either by physical modification or entrapment into suitable carrier.
This article aims to discuss the religious-ecological knowledge of the Tenggerese community on the slope of Mount Bromo, Probolinggo (East Java, Indonesia) and its contribution to disaster ...mitigation. Within the framework of traditional ecological knowledge, we will analyze field data from 2011 until 2016. The results of this study show that many Tenggerese people believe Mount Bromo to be the axis of religion and its surrounding area to be a sacred place. They also believe in and practice several religious-ecological customs in understanding volcanic eruptions and various natural signs. For them, an eruption is a supernatural process involving gods and goddesses that takes place to improve living conditions. However, living in postcolonial times with modern cultures and capitalistic agricultural practices has made some Tenggerese people question and challenge religious authorities when they experience the economic damage caused by volcanic eruptions. Religious authorities can handle the challenge by invoking the concept of communal harmony. Further, we argue, government agencies may incorporate Tenggerese religious-ecological knowledge into disaster mitigation practices. They can combine modern mitigation mechanisms with such wisdom. This hybrid mitigation model may facilitate the coordination of government agencies with traditional leaders to prepare strategically before a disaster strikes as well as implement tactical actions when a disaster occurs.
The use of technology remains a need to integrate into the teaching-learning process. Meanwhile, the students are still weak in reading skills with their low critical thinking capacity and engage ...more activities not being tied and integrated into the learning process at school. The aim of this study was to explain the effectiveness of the scaffolding strategy using GWE on the students’ descriptive reading skills and critical thinking and to inquire about the relationship between those two variables. This study used a quasi-experimental design with two research instruments, namely a standardized descriptive text test sourced from the National Examination from 2005-2019 and a 21-critical thinking questionnaire items that had been validated by the expert. The subjects of this research were the tenth grade of senior high students of an integrated public school in Tana Tidung and were taken randomly to be an experimental class and a control class with 32 students for each of these classes. The results revealed that the implementation of the scaffolding strategy with the use of GWE could develop the students’ descriptive reading skills and critical thinking. Additionally, their descriptive reading skills and Greenstein’s critical thinking across four dimensions, namely: (a) critical thinking, multiple viewpoints; (b) analysing information; (c) using data to develop critical insight; and (d) using data to develop advanced clarification indicated stronger relationship. Thus, the implementation of the scaffolding strategy had to be supported to develop in the teaching learning process and to research in a broader scope for continual development.
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