International Journal of Environment, Engineering and Education
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Stopping Power and Range for Proton Interaction with Lymph Tissues
Full text linkIn this paper, we calculated the mass stopping power (in MeV cm2/g) and the range (cm) of proton in one of the types of body tissues (lymph), from 1 Kev to 200 MeV energy range. They are using the Bethe and Ziegler equations, SRIM program (version 2013) and Ziegler (Vol. 3) data by considering the tissue composed of several elements, so the atomic number (Z) and atomic weight (A) for the component in the tissue are meaning. The calculation results show that the Ziegler equation gives better results than using the Bethe equation. However, in terms of the loss of proton energy in the tissue, the four methods used are approximately the same
Evaluation of the Practicality and Effectiveness of Microcontroller-Based Robotics Trainers as Learning Media
Full text linkThe development of robotics technology occurred very rapidly in the industrial era of 4.0. Human interest in robot development is getting higher, and research related to robotics is increasingly emerging. One of these developments is the research of learning media, one of which is a robotics trainer. A robot is a mechanical device that can perform physical tasks, either using human supervision and control or using a program that has been logged in in the form of artificial intelligence. Based on this, a research study aimed to determine the stages of developing a microcontroller-based robotics trainer media as a learning medium at Universitas Negeri Makassar and producing a robotics trainer media that is valid, practical, and effective. The research method used is Research and Development (R&D) with the 4D development model theory, namely (1) defining, (2) designing, (3) development, (4) spreading. This study indicates that the microcontroller-based robotics trainer media developed on the media and material aspects are in the very right category to be used. The media trainer's implementation received student responses in the practical class in its use, and the results of student test scores after the performance had increased to be in the high category. The conclusion of these data states that the microcontroller-based robotics trainer media that has been developed is declared valid/suitable for use and practical and effective in its use
Dimensions of Students Learning Styles at The University with The Kolb Learning Model
Full text linkSomeone will learn better if the person concerned understands his character in learning. Individuals in learning have various ways; some learn by listening, some learn by reading, and some learn by discovering. These diverse ways of learning by students are known as learning styles. Kolb's learning style is divided into four types, namely converge, assimilator, diverge, accommodator. The purpose of the study was to determine the profile of student learning styles of the Faculty of Engineering, Universitas Negeri Makassar, which is divided into 9 (nine) study programs. Samples taken with an error rate of 5 percent were 177 students. Purposive sampling is used as a sampling technique with special considerations so that it is feasible to be used as a sample. The research measures four types of learning styles, namely Active Experimentation (AE), Concrete Experience (CE), Reflective Observation (RO), and Abstract Conceptual (AC). The results showed that the accommodator learning style was more dominant in students. Of the eight majors that became the research subjects, seven tended to the accommodator learning style, and only one tended to the assimilator learning style. The accommodator learning style combines the poles of active experimentation (doing) and concrete experience (feeling). The use of learning methods following the learning style is Problem-Based Learning which involves all students in the learning process
Evaluation of Learning through Work Practices Industry Program at University with the CIPP Model Approach
Full text linkEvaluation in a program is an important series that intends to evaluate the implementation of industrial practices. This study is an evaluation study with the CIPP evaluation model developed by Stufflebeam, analyzed quantitatively. Respondents in this study consisted of 5 Head of Department, 27 supervisors, 20 industrial supervisors, and 134 students who had carried out industrial practice class 2017. The results showed that 1) the context aspect had obtained categories according to the average value of 131.02. Significant in the context evaluation is that in the management of information systems supervisor respondents, the category is less following the percentage of 37.03 percent, so information systems need to be developed. 2) the input aspect in industrial practice management is in the category according to the average value of 57.08, which indicates the readiness of the management and students is appropriate, 3) the process aspect is in the category according to the average of 93.84. The category is not suitable for the role of supervisors who need improvement in student services and adequate guidance so that students can be directed, 4) product aspects with an average score of 85.30; this is shown by the changes that occur by students from personality, responsibility, and skill improvement
Environmental Fate of Toxic Volatile Organics from Oil Spills in the Niger Delta Region, Nigeria
Full text linkOver the years, the environmental degradation of ecological resources from crude oil pollution and its human health impacts is receiving more global attention. The utilization of environmental models capable of predicting the fate, transport, and toxicity of chemicals in spilt crude oil can provide essential knowledge required to deal with the complexity associated with the fate of volatile petroleum chemicals in the environment. This paper explores the environmental fate of toxic volatile organics from an oil spill in the Niger Delta Region of Nigeria. Results from the literature implicated sabotage and operational failures from pipelines as primary causes of crude oil spillages. The generation of a fugacity model using EPI Suite™ revealed that Koc values greatly influence the behavior of BTN. Benzene, Toluene, and Naphthalene (BTN) were partitioned into three compartments based on organic-carbon partitioning coefficient (Koc). The organic-carbon partitioning coefficient (Koc) was computed as a function of soil-water distribution coefficient (Kd) and percentage organic matter (%OM). Koc was used to determining the possible risk posed on delicate ecological resources. Aquatic toxicology estimation using Ecological Structural Activity Relationship revealed that all chemicals were not toxic even at over-estimated Koc values. This research established the usefulness of screening level environmental modeling tools in assessing ecological risk and hence helpful in developing site-specific models for monitoring chemicals in the environment, which can assist governments, policymakers, and industries in designing appropriate regional disaster management plans
Decorative Flame Behavior Study in Visualizing Wavelengths and Frequency: Ruben's Tube Construction Experiment
Full text linkSound waves are very frequent in everyday life, although they are never seen. The particles of the average vibrations are parallel to the direction of propagation of the wave. In this article, the effect of changing the frequency of the sound wave on standing waves was investigated with different hertz frequencies to show technical images that can be visually translated to give fundamental predictions about the origin of the musical combinations, as it was proved that the sound is a pressure wave by giving the vibrations one side while the gas is released the other side. To obtain accurate results, the variables were fixed in the experiment as the type of gas supplied for the same experiments. It is also installed so that the distance between the diaphragm and the amplifier does not differ. The results analyzed after numerous data collection and calculations verify that the generated wavelength and frequency are directly proportional. As the frequency specified in Hz increased, the number of inverse nodes and nodes also increased. Obtaining standing waves helps to understand the nature of sound as a pressure wave, and to give all the details about the experiment and evaluate it. Sources of error and possible solutions to overcome these problems are also mentioned
The Ability of Vocational High School Teachers to Developing HOTS Question
Full text linkThe purposes of this study are to 1) describe the form of the question made by vocational school teachers, 2) elaborate the teacher's method in preparing questions to evaluate the learning outcomes, 3) explain the teacher's comprehension in preparing questions that measure high order thinking skills, and 4) analyze the teacher's skills in preparing questions that measure high order thinking skills. The research is descriptive and correlational. The population and sample of this research are productive vocational high school teachers who teach at the Technical of Construction and Property expertise program in the province of South Sulawesi. Data collection was carried out in March – June 2021. Determination of the samples used the Slovin formula with an error rate of 0.05. The sample used is 59 respondents. Analysis of research data using descriptive statistics and cross-tabulation. The results of the study show that 1) the form of questions combines an objective test and a subjective test. 2) the preparation of examination questions is preceded by making a question grid, then dividing the categories of questions based on their cognitive level. 3) Dominant teachers have understood the preparation of questions that measure high-level thinking skills, however, almost 40% of teachers still need further strengthening. 4) Dominant teachers have been skilled in preparing HOTS questions, however, there are still 20% of teachers who still need assistance in preparing High-Order Thinking Skills (HOTS) questions. 5) Teachers with 11-20 years of service are more dominantly skilled at preparing HOTS questions
Evaluation of Urban Heat Island (UHI) Spatial Change in Freshwater Lakes with Hot Spot Analysis (GI Statistics)
Full text linkMonitoring spatial changes of surface heat island formation and temperature changes in sub-urban areas is vital in the freshwater lake management of urban areas as frequent phenomena related to climate change have undergone. The purpose of this study was to examine the Spatio-temporal pattern of urban heat island and land surface temperature and vegetation changes by using GI statistics, where hotspot analysis was also performed. The study further examined the effect of heat island and surface temperature on urban freshwater lakes where hot and cold spots identified had undergone a reclassification process. The results revealed that the increasing Land Surface Temperature (LST) due to modification and transformation of vegetated areas into concrete and synthetic built-up extents is one of the challenging problems in the selected suburbs. Both NDVI and LST hot spots and cold spots have changed compared to 2010. The LST showed considerable expansion of the hotspots within ten years rather than cold spots in all three suburbs. The freshwater lakes are in proximity to the city. All three lakes were finally reclassified as hotspot areas for LST, while Kesbewa Lake and Thalangama Lake were identified as NDVI hotspots where the vegetation cover had contracted by 2020. Even though Boralesgamuwa Lake is not recognized as an NDVI hotspot, the encroachment and expansion of the current hotspot area could be identified. The study's findings could be used to design sustainable cities in these suburbs more by prioritizing the conservation of urban ecosystems. 
The Role of Urban Sustainability in Placemaking: Measuring the Urban Dimension
Full text linkThe research sheds light on the importance of the role that urban sustainability plays in placemaking, where the research discussed the principle of including sustainability at the urban level in its comprehensive concept, which includes the economic, environmental, and social dimensions in the placemaking process to reach sustainable models of urban places that are environmentally friendly and inexpensive or consuming energy sources. Renewable and more appropriate to the cultures and values of the local community, and the researchers emphasized that reaching an urban place-based on sustainability will contribute significantly to adapting to the problems of climate change, the shortage of energy sources and its high cost, reduces environmental pollution problems, increases the efficiency of the use of spaces and meets the different needs of its users. The primary research data were obtained for the selected samples (Salhia Residential Complex and Al Salam Residential Complex) using a questionnaire as a tool consisting of a set of questions directed to 20 people who were identified according to the experience and objectives of the study And coming out with the conclusions of the practical study that showed that the process of a sustainable urban placemaking is a dynamic process and that by its nature it supports continuity and compatibility with the environment, However, there are complementary principles, foundations, and goals that have been added from a sustainable perspective to reach urban spaces that are more compatible and responsive to the current challenges
Public Health and Environmental Problems: Study on the Bhur Bhur Pochamma Tribe in Latur District of Maharashtra, India
Full text linkAn ex-slave Pochamma are amongst the most marginalized community in the Latur district of Maharashtra. This paper focuses on their health status and practice disease and illness. This research aims to study the significant health problem the Pochamma community faces. The research design used is Qualitative Exploration so that phenomena from everyone's personal experience can be explored with the help of an in-depth interview; the study examines the primary issue from expertise shared by the tribal population to bring out health issues and health care services. The paper's outcome deals with the issues and concerns related to water and skin-related diseases among the Pochamma community. This paper also attempted to explain how these diseases are interrelated to water and migration. The lack of resources made them habitual with the current lifestyle. Therefore, it is essential to understand what kind of practices they use to overcome diseases. The study paints a precise but gray picture of this community, excluded from securing benefits of advances like globalization and liberalization due to the unfortunate fact that their existence in the world still needs to be realized