bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of digital LKPD with a scientific approach to diversity material for SMA/MA students
Authors: Procilia Yab Yakoba , Irawati Hani
Published: April 2024

Teaching materials are an important part of the learning process. One of the teaching materials that can be developed using the Google Sites application is LKPD which presents information and learning instructions and can include images, videos, audio and files. This study aims to determine the quality of LKPD based on the assessment of media experts, materials, teachers, and education experts. The development model used is the 4-D model with stages: Define, Design, Develop, and Disseminate developed by Thiagarajan (1974). Assessment results from material experts get a percentage of 79.16% with a very good category. The assessment of media experts gets a percentage of 95.83% with a very good category. The assessment of education experts received a percentage of 78.85%, with a very good category. Biology teachers gave an assessment with a percentage of 94.95%, categorized as very good. The small group test obtained a percentage of 96.11% with a very good category and in the large group test obtained a percentage of 100.00% with a very good category. Based on these results it can be concluded that digital LKPD with biodiversity material for class X is feasible for students to use in learning biology.
Use Value and Fidelity Level of Ornamental Plants in Tasikmalaya City
Authors: Anidalia Dina , Hernawati Diana , Putra Rinaldi Rizal
Published: April 2024

Ornamental plant business activities at this time is one of the business activities that many people are engaged in, especially in urban areas. Thus it is necessary to conduct research or documentation regarding ornamental plants based on Use Value and Fidelity Level in Tasikmalaya City. This type of research is qualitative research using a case study research strategy. The data sources used in this study are primary data sources obtained through interviews and direct observation of ornamental plant sellers and consumers in Tasikmalaya City. Meanwhile, secondary data sources in this study were obtained through literature, articles, journals, and internet sites that were relevant to the research being carried out. The results showed that the number of ornamental plant species traded was 134 species with 39 families. Of the total amount, the largest number of ornamental plants traded came from the Familia Araceae with 59 species and the Familia Begoniaceae with 9 species. There were 26 species from 4 families that had a high Use Value value of above 50%. Plants that have the highest Use Value are Aglaonema alumnia plants with 84%. As for the Fidelity level calculation, the plants with the highest score were Monstera Delliciosa Liebm 44% and Aglaonema cutlass 41%.
Topical Pharmacological Agents That Have Anti-Aging Properties
Authors: Lestari Diah Ayu , Febrianti Novi
Published: April 2024

Aging of the skin is a common problem today, the effects of aging skin cause insecurity due to changes due to various factors. Aging is the process of progressively reducing the function and capacity of the skin. Effects of aging such as wrinkles, fine lines, hyperpigmentation, sagging skin and dark blemishes. The method used in this study is a search of relevant literature collected from various studies that have been published in google scholar, Elsevier, and pubmed related to anti-aging. To reduce the effects of aging on the skin, cosmetic pharmaceutical products are developed known as anti-aging, so writing this review article is carried out with the aim of knowing the types of topical ingredients that act as anti-aging agents. Anti-aging can take the form of creams, serums and gels. Anti-aging is formulated with topical ingredients that are able to reduce the effects of aging on the skin, for example retinol, vitamin C, niacinamide, and vitamin E. Topical ingredients that are commonly used as anti-aging agents and are effective in reducing the effects of aging are retinol and niacinamide.
Abundance and Biomass Analysis of Nostoc commune in Rice Field Habitat in Madura
Authors: Najah Aminatun , Abida Indah Wahyuni
Published: April 2024

Nostoc commune is often found in terrestrial habitats as well as aquatic habitats. Nostoc commune has the ability to fix nitrogen from the atmosphere, besides being used as food or medicine. Nostoc commune in Indonesia is still little utilized, this is because its existence is often misinterpreted as a weed in rice fields. The purpose of this study was to determine the abundance and biomass of Nostoc commune in rice field habitats. This research was conducted from 5 September 2022- September 23, 2022. The sampling method of Nostoc commune and water used was purposive sampling in the rice fields of Gilianyar Kamal Village, Bangkalan Regency, with three sampling location points. The measured water quality parameters include, nitrate, phosphate, water TOM, sediment TOM, and sediment C/N ratio. Nostoc commune data were identified to determine the biomass and abundance at each station. The results of the study of the abundance of Nostoc commune found that the first week of September and the second of September, respectively got an average of 695.1 colonies/m2 with a biomass of 1,576.2 g and 768.9 colonies/m2 with 1,799.7 g of biomass. Nostoc commune found in the rice fields is classified as abundant in each m2.
Design of RBL-STEM learning model through analysis of chitosan making from crab shell waste in improving students' metacognition
Authors: Jayawardana H.B.A , M.P Syifa Salsa Bella , Hakiki Zulfa Nur
Published: April 2024

Metacognition skills are needed in the face of technological disruption and the current industrial revolution 4.0 era. Metacognition is the ability to control cognitive processes in one's learning and thinking activities so that they become more effective and efficient. Metacognition is generally related to the dimensions of a person's thinking which can be divided into two parts, namely the awareness he has about his thinking (self awareness of cognition) and the ability to use his awareness to regulate his thinking process (self-regulation of cognition). Metacognition can be achieved by fostering high-order thinking skills (HOTS). Therefore, a researchbased learning (RBL) with STEM (Science, Technology, Engineering and Mathematics) approach is needed. This study aims to develop a learning design with the RBL model with a STEM approach through the analysis of making chitosan from crab shell waste in improving students' metacognition. The research method used is a narrative qualitative method, which develops the syntax of the RBL learning model with the STEM approach. The main result of the research is a learning activity framework in the form of a description containing learning activities that will be carried out in the classroom.
Mobile Learning Environment System (MLES): Seeing Android Media Development (Gaident) As Enhancement of Critical Thinking Skills
Authors: Nugroho Bimo Aji
Published: April 2024

The current reality shows that the media used is still conventional and unable to improve critical thinking skills. Research to see the validity, practicality, and effectiveness of learning media. This research method uses Plomp and Nieveen which are limited to the prototyping phase, formative evaluation based on Tessmer which consists of self-evaluation, expert opinion, individual testing, small group testing, and field testing. The research subjects consisted of 3 experts and 30 students who had programmed the Invertebrates course for individual tests, small group tests and field tests. Data collection techniques were carried out by observation, questionnaires and tests. The results showed: the validation of the android media has shown that the media is feasible to use, the practicality test shows the ease of the learning process, the effectiveness test of using android media has an impact on the learning process and improving critical thinking skills. This shows that the developed android media can be used, then this research can be developed further by expanding its use.
Microplastics in the Gastrointestinal Tract of Blue Crab (Portunus pelagicus) Caught by Bandaran, Bangkalan Fishermen at Different Sizes
Authors: Astutik Sri , Abida Indah Wahyuni
Published: April 2024

Microplastics are plastic waste that is degraded into small sizes that float in water bodies and can be ingested by aquatic biota. This study aims to determine the shape, color, and abundance of microplastics in the digestive tract of blue swimming crab (Portunus pelagicus) caught by fishermen in Bandaran Village, Bangkalan at different sizes. Swimming crab sampling was carried out 3 times with different sizes, namely small, medium, and large. Identification of microplastics using a solution of H2SO4 and H2O2 with a concentration of 30% with a ratio of 3:1. Microplastic forms found include fiber, fragments, and films. The highest abundance of microplastics was found in large crabs with a value of 3.13 particles/g. The simple regression test results obtained a relatively small R² value of 0.0003 meaning that the size of the crab has a very small correlation with the abundance of microplastics in the digestive tract.
Proximate Content of Nostoc commune in Gilianyar Rice Field Habitat, Bangkalan Regency, East Java
Authors: Ambat Kristin Natalia , Abida Indah Wahyuni , Ismail Moh.
Published: April 2024

Nostoc commune become one of the microalgae that can be found in Indonesia. Nostoc commune is an edible blue-green microalgae that has been used as a delicacy or herbal medicine in various countries. Nostoc commune contains high concentrations of carbohydrates, crude protein, and micronutrients. The purpose of this research is to know the proximate content of Nostoc commune in the rice field habitat of Gilianyar, Bangkalan Regency, East Java. The method used in this study includes 2 steps, namely direct observation (on site) and observations in the laboratory. Direct observation was carried out by taking samples of Nostoc commune regularly purposive sampling and water samples and water quality measurements on site which includes pH, DO (Dissolved Oxygen), temperature, salinity and light intensity were carried out with 3 location points and 2 repetitions. Observations in the laboratory include proximate analysis, nitrate and phosphate according to standard procedures. The average yield of nutrient concentrations Nostoc commune among others, moisture content 24.78%, ash content 0.6055%, fat content 0.92%, protein content 0.47%, crude fiber content 1.190% and carbohydrate content 72.0378% .
Substitution of Eco Enzyme in AB Mix on Growth and Weight of Red Spinach
Authors: Putri Silvia Kharismaya
Published: April 2024

Red Spinach (Amaranthus tricolor L.) is a vegetable that has quite high nutritional value and is liked by many Indonesian people. The content contained in red spinach is protein, vitamin A, vitamin C and mineral salts and contains anthocyanins which can cure anemia. Awareness of the importance of consuming vegetables for health has led to increased consumption of red spinach. Along with the existence of agricultural land which is increasingly limited and food needs must be met, it is necessary to do alternative hydroponic planting with a wick system. This study aims to determine the effect of Eco Enzyme substitution at AB Mix concentrations on the growth and weight of red spinach (Amaranthus tricolor L.) in hydroponic wick systems. This study used a completely randomized design (CRD) with 4 treatments and 3 replications which were carried out for 28 days. Parameters measured were the growth of red spinach including plant height, number of leaves and leaf width and wet weight of red spinach plants. The data obtained were analyzed by 5% ANOVA and followed by 5% Duncan's test. The results showed that substitution of Eco Enzyme at concentrations of AB Mix significantly affected plant height, number of leaves, leaf width and wet weight of red spinach (Amaranthus tricolor L.) plants in hydroponic wick systems.
Critical thinking skills of students through problem-based learning assisted by electronic learner worksheet (e-LKPD) of body defense system
Authors: Danty Sheeren F , Setyawati Heni
Published: April 2024

Critical thinking skills are one of the competencies that must be achieved by students in 21st century learning that can be raised by applying a problem-based learning model. This critical thinking ability can be realized through learning using the Problem Based Learning (PBL) model. In a problem-based learning model, learning media is needed that can support the learning process, one of which is Electronic Learner Worksheets (E-LKPD) which can provide practicality and effectiveness for students in learning. The purpose of this study is to describe students' critical thinking skills after being taught using a problem-based learning model assisted by E-LKPD on the material of the body's defense system for class XI MIPA at SMAN 1 Cluring Banyuwangi in the 2021/2022 academic year. This research is a quantitative descriptive research with the research form Nonequivalent Group Pretest Posttest Design. Sampling was done by purposive sampling technique. Data collection techniques using tests, observation and documentation. The data analysis technique in this study used the N-Gain calculation. The results showed that there was an increase in the critical thinking ability of students who were taught using a problem-based learning model assisted by E-LKPD with an average N-Gain value of 0.4975 in the medium category.
Community Based Conservation on Lubuk Larangan and Conservation Corridor in North Sumatra
Authors: Utami Winda Sri , Mangunjaya Fachruddin Majeri , - Aadrean - , - Yarni - , Setia Tatang Mitra
Published: April 2024

Lubuk-larangan or prohibited river is a traditional local wisdom practiced by the community in West and North Sumatra in preserving natural areas particularly fish habitat and river ecosystem. The practice is based on customary and  communal deliberation in order to  help the villages maintain their communal resources in a sustainable way. The protection brings a positive impact to the   ecosystem as well as various wildlife and aquatic biota. By managing the existence of lubuk-larangan, they also will guard the natural ecosystem as well as the dwindling natural habitat. This paper presents a hypothesis that the prohibition of the area may potentially  function as a conservation-corridor in facilitating the home range of natural habitats and wildlife accommodation within the conservation area. There are 25 conservation areas in North Sumatra with a total area of approximately 1 million ha. Some areas potentially  could become a natural corridor for wildlife. Through this study we put a spot of potential corridor  using GIS, by mapping the areas from 0 m of the protected areas such as national park, to up to 5000m to the position of lubuk-larangan. However by obtaining this map can provide legitimacy for communities at the surrounding conservation areas such as Batang Gadis National Park to participate indirectly in taking care of  the national park  by supporting their own lubuk-larangan. In practice, the community implements an opening ritual that is only held once a year, and fines are imposed for anyone who violates the rules that have been set and agreed upon. The regional government also supports the existence of lubuk-larangan in utilizing natural resources such as local fish in a sustainable manner. Based on our findings, there are 153 lubuk-larangan located at 64 rivers in 5 districts in North Sumatra that can be used as a link between natural life and conservation areas.
Validity Test Development of Wizer.me-based Interactive Worksheet On Human Excretion System For Class VIII
Authors: Andika Komang Wisnu , Aquan Hendra Michael
Published: April 2024

When online learning was implemented, teachers are encouraged to use digital technology base for teaching. According to interview results with junior high school science teachers in Yogyakarta, Bekasi, and Lampung, the problem encountered is the lack of use of interactive worksheets because some teachers have not mastered today's technology. The material chosen is the eighth grade human excretory system because it has a complexity in many names of organs and processes that occur in these system. This research aims to develop, determine the validity and feasibility of interactive worksheet using Wizer.me on eighth grade human excretory system material. This research uses R&D methods and ADDIE model as a reference for research implementation. This article is limited to the development section, especially the validity test. To test the validity of the worksheets, the instrument sheets are used. There were two aspects that being validatet, material and media. This research had made 3 interactive worksheets using Wizer.me. The validation conducted by four validators consisting of one media expert, one material expert, and two science subject teachers. The results showed an average value of 93.2% with very valid criteria. Therefore, the interactive worksheets based on Wizer.me is eligible to be tested with revisions according to suggestions from the validators.
Acute Toxicity of Ethanol Extract and A Fraction Of Sansevieria Trifasciata Prain Using The Brine Shrimp Lethality Test (BSLT)
Authors: Aliyah Siti Hamidatul , Seftiara Yessi , Yulianis Yulianis
Published: April 2024

Sansevieria trifasciata Prain plants are simple to grow in Indonesia and have therapeutic potential. The potential toxicity effect present in medicinal plants is important to be identified for safety assurance. The objective of this study is to identify the potential acute toxicity of leaves ethanol extract and fraction of snake plants (S.trifasciata). This study used the Brine Shrimp Lethality Test (BSLT) method. S. trifasciata leaves are extracted with ethanol by maceration. The ethanol extract was then fractionated using n-hexane, ethyl acetate, and n-butanol solvents. Extract and fraction  S. trifasciata leaves with concentrations of 1000, 500, 100, 50, and 10 µg/ml were exposed to Artemia salina (L.). larvae for 24 hours. The level of toxicity is determined based on LC50 obtained based on the number of dead larvae, through probit analysis. The ethanol extract and the fraction of S.trifasciata leaves are active cytotoxic characterized by LC50 of 251,187 ppm for the ethanol extract, 116,950 ppm for the n-hexane fraction, 76,033 ppm for the ethyl acetate fraction, 20,230 ppm for the n-butanol fraction and 34,751 for the remaining fraction. The ethanol extract, n-hexane fraction, ethyl acetate fraction, and the remaining fraction were categorized as toxic, while the n-butanol fraction was categorized as very toxic.
Plant Inventory Constituent of Vegetation Structure of Balikpapan Botanical Garden Area Embung Wain Route East Kalimantan
Authors: Hidayah Maulida Ulfa , Agil Muhamad
Published: April 2024

Plants are important living things that have a role as oxygen providers for other living things. In addition, plants can also be stores of biomass and carbon stocks. The vegetation of the botanical garden area has great potential for maximizing the function of plants and as a place for the conservation of various types of plants. Therefore, it is necessary to conduct continuous inventory (monitoring) to prevent extinction and to update plant data that has never been identified. This research was conducted to identify plants in the Balikpapan Botanical Garden area, especially on the Embung Wain track, which is the first track frequented by visitors for education.Data retrieval using the method roams all regions on the track. The results of the study revealed as many as 117 species of plants, consisting of 59 families. The members of the plant family that are found are Asteraceae (6 species), Euphorbiaceae (6 types), Fabaceae (7 types), Moraceae (7 types), Poaceae (7 types), and Zingiberaceae (6 types). Endemic plants found in this area are Agathis borneensis, Diospyros borneensis, Diospyros celebica, Eusideroxylon zwageri, Etlingera balikpapanensis, and Eurycoma longifolia.
Descriptive Analysis of Inventory of Equipment and Materials for Biology Laboratory Activities in High Schools throughout Banjarnegara Regency
Authors: Ahnaf Fathia Alauddin , Puspitasari Etika Dyah
Published: April 2024

Laboratory management is an attempt to manage the laboratory in order to have good governance. One of the laboratory management activities is the inventory of laboratory equipment and materials. Inventory is important in recording, storing and controlling the tools and materials contained in the laboratory. The aim of this research is to describe inventory activities for biology laboratory equipment and materials in high schools throughout Banjarnegara district. This research is descriptive research with data collection techniques using an open questionnaire (Google form) and using descriptive analysis techniques. Most high schools in Banjarnegara district still use the manual/conventional method by using the media of inventory recording books. Apart from that, most high schools in Banjarnegara district also carry out maintenance on laboratory equipment after the equipment has been used and on a regular basis. All high school samples in Banjarnegara district have stored laboratory equipment and materials in special storage cabinets. Apart from that, most high schools in Banjarnegara district still have problems, namely the lack of laboratory assistants. Therefore, most high schools in Banjarnegara district require professional laboratory staff to support laboratory management. Apart from that, there are other needs such as the procurement of computers and a digital inventory system (website) to support the process of recording inventory of tools and materials in biological laboratories.
PLKPD Compilation Based on Research on Characteristics of Epidermis and Epidermis Derivatives of Capsicum frutescens L. and Capsicum chinense Jacq. Leaves for Students of Class XI SMA/MA
Authors: Annisa Mila Nur , Salamah Zuchrotus , Sasongko Hadi
Published: April 2024

There are limitations to teaching materials used in schoolssourced from research results. This study aims to look at the characteristics of the epidermis and epidermal derivatives of the leaves of Capsicum frutescens L. and Capsicum chinense Jacq. as well as to determine the quality of LKPD teaching materials on the material structure and function of plant tissue for class XI students based on the results of the research conducted. The method used for making preparations is the leaf clearing method. The preparations were observed in the laboratory using optilab to see the characteristics of the epidermis and its derivatives. The results of research on the structure of the epidermis and the epidermis derivatives of the leaves of Capsicum frutescens L. and Capsicum chinense Jacq. developed in the form of Biology LKPD. LKPD arrangement is carried out by the ADD (Analysis, Design, Development) stage. Epidermal structure data analysis and leaf epidermal derivatives were carried out descriptively, product assessment was carried out by 2 experts from biology education.Epidermis leaves of Capsicum frutescens L. and Capsicum chinense Jacq. has an irregular epidermal cell shape and is spread over the surface, has anisocytic stomata type, glandular and non-glandular types of trichomes, hydatod trichomes and simple needle-shaped hairs found on the edges of the leaves. The average results of the assessment by two Biology education experts get a percentage value of 73.28% with a feasible category to be tested as teaching material for students of class XI SMA / MA.
The impact of plan irregularity on multistory building response: A pushover analysis
Authors: Madan Chandra Maurya
Published: April 2024

Structural irregularity often stems from a combination of plan and elevation irregularities, as perfect regularity is seldom achieved in real structures. Defining structural irregularities is challenging due to their varying nature. While scientific literature tends to separate plan and elevation irregularities, there's a need to understand the behavior of real structures that possess plan irregularities. This paper investigates the impact of plan irregularities on multi-story building responses through pushover analysis. The study aims to evaluate various parameters such as capacity curves, performance levels, story drifts, and displacements for irregular building models compared to regular ones. Four and eight-story buildings are designed according to Indian standards, and nonlinear static analysis is conducted using a plastic hinge model. Plastic hinges are assigned at possible failure locations, and pushover analysis is performed. Eccentricity is incorporated by shifting the position of live loads and adjusting column dimensions on both sides of the axis of symmetry at eccentricity values of 10%, 20%, 30%, and 40%. Displacement-controlled pushover analysis is conducted, and pushover curves are obtained in the X direction. The performance of building models is compared with a regular reference frame. Capacity curves, performance points, and story response plots are analyzed using ETABS 9.7.0. The results indicate a reduction in base shear capacity with increasing irregularity, with eccentricity showing a greater effect than soft story irregularity. Irregularity also influences the height-wise variation of story drifts differently.
Factors Influencing Accuracy of Estimating Position of Objects in a Multi-camera System
Authors: Klimaszewski Krzysztof , Grajek Tomasz , Wegner Krzysztof
Published: April 2024

Nowadays, research focusing on robotics, autonomous vehicles, and scene analysis shows a clear need for the ability to accurately reconstruct three-dimensional environments. One of the methods allowing to conduct such a reconstruction is to use a set of cameras and image processing techniques. This is a passive method. Despite being, in general, less accurate than its active counterparts, it offers significant advantages in numerous applications in which active systems cannot be deployed due to limited performance. This paper provides a theoretical analysis of the accuracy of estimating 3D positions of objects present at a given scene, based on images from a set of cameras. The analysis assumes a known geometrical configuration of the camera system. The important limiting factor in the considered scenario is the physical resolution of sensors - especially in the case of systems that are supposed to work in real time, with a high FPS rate, as the use of high-resolution cameras is difficult in such circumstances. In the paper, the influence of the geometric arrangement of the cameras is studied and important conclusions about the potential of three-camera configurations are drawn. The analysis performed and the formulas derived help predict the boundary accuracy values of any system using a digital camera. The results of an experiment that confirm the theoretical conclusions are presented as well.
A comparative study on physicochemical properties of rice and starch of white
rice, black rice and black glutinous rice
Authors: Mustofa A. , Anam C. , Praseptiangga D. , Sutarno
Published: April 2024

Rice is a staple food for Indonesians and Asians in general. It is rich in starch, a
component that can be developed as a texture agent, filler, or raw material for edible films,
encapsulation, or other products. The characteristics of the starch produced will determine
its functional properties. This study aimed to characterize the physicochemical properties
of rice and starch of white rice, black rice, and black glutinous rice. In this study, rice was
extracted using an alkaline method to obtain rice starch. The processing of rice into starch
can change some of its characteristics. A comparative study was also conducted on rice
starch. The results showed that the starch contents of white, black, and black glutinous
rice were 85.48; 86.67; and 83.56% (db). Black glutinous rice contains more amylopectin
than black and white rice. Resistant starch in the rice fractions was greater than the
amount of resistant starch in the starch fractions. Black rice contained anthocyanins of
323.85 mg/100 g, while the anthocyanins in black glutinous rice reached 219.35 mg/100
g. Although in very small amounts, anthocyanins were detected in black rice and black
glutinous rice starch fractions. The starch fraction has much lower antioxidant activity
compared to that in the form of rice. It appears on all types of rice. The peak viscosities of
the starch of white rice, black rice, and black glutinous rice were 3627, 5448, and 5001 cP
with pasting temperatures of 79.10°C, 80.60°C, and 80.90°C. Physicochemical and
pasting properties of the rice fraction and the starch fraction from white, black, and black
glutinous rice provide complete information to be used as a basis for the manufacture of
food products.
Development of spray-dried yogurt with addition of cinnamon extract as a
functional drink
Authors: Wihansah R.R.S. , Wahyuningsih  , Arifin M. , Pazra D.F.
Published: April 2024

The addition of cinnamon extract was done to improve the functional properties of yogurt.
The limiting factor of yogurt is the difficulty of maintaining the quality in the distribution
process. Spray drying technology is suitable for maintaining the quality of yogurt during
distribution. This study aimed to evaluate the characteristics and antioxidant activity of
yogurt with the addition of cinnamon extract before and after spray drying process.
Research was conducted using factorial pattern of complete randomize design 2×3 (levels
of extract and type of yogurt). The samples were evaluated for its pH, water activity,
viscosity, titratable acidity, total lactic acid bacteria, antioxidant activity by DPPH
inhibition, total phenolic compound (TPC), nutrient content and sensory properties.
Yogurt powder obtained from spray drying process were analyzed for its visual
appearance using scanning electron microscopy. Results showed that pH, viscosity,
titratable acidity, viable lactic acid bacteria, protein and ash content were significantly
affected by spray drying process, while moisture content and TPC were significantly
affected by both spray drying and type of yogurt. Overall, after spray drying process,
rehydrated cinnamon-yogurt still had antioxidant capacity and quality that met the
requirement according to Indonesian Standard and CODEX.
Evaluation of drying and extraction parameters for the extraction yield of
watermelon (Citrullus lanatus (Thunb.)) rind using statistical design experiment
Authors: Ahamad S. , Mohammad Azmin S.N.H. , Mat Nor M.S. , Abdullah P.S. , Ch'ng H.Y.
Published: April 2024

Watermelon rind contributes about 30% of overall watermelon mass and is considered the
most underutilized resource as it is usually discarded as waste. Watermelon rind resources
have great potential economic value in various industries. Thus, utilizing the rind could
decrease the amount of biological waste in the environment. Therefore, this study aims to
determine the optimal conditions in extracting oven and dehydrator drying watermelon
rind using a sonicator extraction procedure. Watermelon rind samples were evaluated
using a one-factor-at-a-time (OFAT) evaluation to identify the most significant factor for
the sonicator extraction time (0.5-3 hrs), ethanol concentration (20-100%), solvent-tosolid ratio (10:1-50:1 v/w), and sample drying time (24-48 hrs) parameters. The highest
yield obtained for the oven drying sample was at one hr extraction time (15%), 100%
ethanol concentration (12.5%), 30:1 v/w ratio (12%), and 48 hrs drying (9%). Meanwhile,
the extraction yield of dehydrator drying sample was optimized at one hr of extraction
time with 10% yield 100% of ethanol concentration with 15.4% yield, 40:1 v/w of solvent
ratio with 14.7% yield, and 48 hrs of drying with 8% yield. The optimum extract yield of
dehydrator drying sample could be further applied for cosmeceutical application as it
produced higher yield compared to oven drying sample.
On the Definability and Complexity of Sets and Structures
Authors:   , Richter Linus
Published: April 2024

We prove results at the intersection of computability theory and set theory, broadly concerning notions of complexity in the sense of definability. We consider these in the contexts of problems in classical mathematics: in the first part of this thesis, we present the solution to a problem in uncountable computable structure theory concerning the construction of complicated uncountable free abelian groups, which was obtained in collaboration with Greenberg, Shelah, and Turetsky. In the second part, we turn towards fractal geometry and its connection with both descriptive set theory and algorithmic randomness. We construct a co-analytic set of reals which fails Marstrand’s Projection Theorem, a seminal result of classical fractal geometry and geometric measure theory. The construction uses computability-theoretical tools, in particular the notion of Kolmogorov complexity.
Research on the Application of Second Language Acquisition Theory in College English Speech Teaching
Authors: Zhang Hui
Published: April 2024

The teaching of English speeches in universities aims to enhance oral communication ability, improve English communication skills, and expand English knowledge, occupying a core position in English teaching in universities. This article takes the theory of second language acquisition as the background, analyzes the important role and value of this theory in English speech teaching in universities, and explores how to apply the theory of second language acquisition in English speech teaching in universities. It aims to strengthen the cultivation of English skilled talents and provide a brief reference for improving English speech teaching in universities.
Exploration of the “Four-Three-Four” Internship and Training Mode in Higher Vocational Colleges Under the Modern Vocational Education System
Authors: Liu Jifeng , Han Na , Li Xiaojiao , Wang Jing , Feng Xuezhen
Published: April 2024

This article mainly introduces the innovative internship and training model of vocational colleges, including five aspects such as “four-party collaboration, three-stage progression, four-way integration, value-added evaluation, and double selection and promotion.” The model aims to improve students’ practical skills and professional quality to better adapt to market demand and social development. The article also presents the prospects of the future internship and training model, including strengthening cooperation and communication with industry enterprises, focusing on students’ personalized development and practical skill cultivation, and establishing a scientific and objective evaluation and feedback mechanism.
Research and Application of AI-Based Interactive Exhibits in Wuhan Museum of Science and Technology
Authors: Yan Ting
Published: April 2024

This article aims to explore the development and application of AI-based interactive exhibits in Wuhan Museumof Science and Technology. By utilizing computer vision, natural language processing, and machine learning technologies, an innovative exhibit development and application system is proposed. This system employs deep learning algorithms and data analysis methods to achieve real-time perception of visitor behavior and adaptive interaction. The development process involves designing user interfaces and interaction methods to effectively enhance visitor engagement and learning outcomes. Through evaluation and comparison in practical applications, the potential of this system in enhancing exhibit interaction, increasing visitor engagement, improving educational effectiveness, and expanding avenues for scientific knowledge dissemination are validated.
A Review of the Status and Development Strategies of Computer Science and Technology Under the Background of Big Data
Authors: Zhang Junlin
Published: April 2024

This article discusses the current status and development strategies of computer science and technology in thecontext of big data. Firstly, it explains the relationship between big data and computer science and technology, focusing on analyzing the current application status of computer science and technology in big data, including data storage, data processing, and data analysis. Then, it proposes development strategies for big data processing. Computer science and technology play a vital role in big data processing by providing strong technical support.
Research on the Construction of Group Elderly Care Service Platform Based on IoT Technology
Authors: Li Jialu , Weng Jianan , Tian Weiming
Published: April 2024

Internet of Things (IoT) technology is widely used in various fields, and its application in elderly care serviceshas been highlighted in recent years. This study aims to explore how IoT technology can improve the efficiency of group-based elderly care services. The concept, characteristics, and current application status of IoT technology in elderly care services were introduced. Secondly, the characteristics and needs of group elderly care services were analyzed, including advantages and challenges, as well as the expectations and needs of the elderly for elderly care services. The evaluation methods and future development directions of IoT technology in improving the efficiency of group elderly care services were discussed, including data collection and analysis methods, selection and measurement of efficiency evaluation indicators, challenges, and development directions.
Research on the Reform of Practical Teaching of Internet of Things Engineering in the Context of New Engineering
Authors: Xing Kongduo , Pan Ling
Published: April 2024

The emergence of new engineering disciplines has resulted in the growing trend of cross-discipline, and theenhancement of students’ technical application ability has become the main teaching objective of engineering disciplines. For this reason, the Internet of Things (IoT) engineering program should be actively reformed, providing students with sufficient opportunities to improve their practical skills. This paper identifies the challenges within practical teaching of IoT engineering, delves into effective strategies for practical IoT teaching within the context of emerging engineering disciplines, and presents practical teaching experiences from the School of Information Engineering at Hainan University of Science and Technology as a case study. The aim is to offer guidance and insights to educators in this field.
Research on Dynamic Graphic Features in Digital Media Interfaces
Authors: Wang Yingquan
Published: April 2024

In digital media interfaces, dynamic graphics integrate elements of animation design, graphic design, andcinematic language, presenting in various forms and demonstrating significant inclusivity. From the perspective of visual cognition, by capturing dynamic graphics within the interface, three-dimensional information such as time and space is acquired, and the cognition process exhibits characteristics of spatial and temporal correlation. In terms of information cognition, dynamic representation fragments information, resulting in a sense of discontinuity and intermittent memory. The efficiency of information cognition and transmission is enhanced through the coordination of audio, video, and other elements. In aesthetic perception, with the rise of Internet culture, people’s aesthetic perceptions towards dynamic graphic design have evolved, showcasing a generalization of form and the instantaneous nature of content. Technically, the complexity of design and the diversity of applications have established dynamic graphics as a typical design style label in digital media interfaces.
Evaluation of Energy Efficiency and Analysis of Influencing Factors of Company CW’s Manufacturing Workshops
Authors: Zhang Pengju
Published: April 2024

In this work, the Slacks-Based Measure (SBM) model within Data Envelopment Analysis was employed toestablish a set of indicators for evaluating the energy efficiency of manufacturing workshops. The energy efficiency of 12 Company CW’s manufacturing workshops from 2016 to 2022 was assessed. The findings indicated that aside from a few workshops operating at the production frontier, the rest exhibit significant fluctuations in energy efficiency and generally low energy efficiency. Subsequently, a combined GRA-Tobit analysis model was introduced to identify factors influencing the energy efficiency of Company CW’s manufacturing workshops. Regression analysis revealed that technological investments, employee quality, workshop production scale, investment in clean energy, and the level of pollution control all significantly impact the energy efficiency of Company CW’s manufacturing workshops. By evaluating the energy efficiency of Company CW’s manufacturing workshops and studying their influencing factors, this research aids companymanagers in understanding the energy efficiency of the manufacturing process. It optimizes the combination of various production elements, thereby offering effective guidance for improving the energy efficiency issues of the company’s manufacturing workshops, which can contribute to enhancing the corporation’s overall energy efficiency.
Review of Power Supply and Distribution Construction Technology for Highway Electromechanical Engineering
Authors: Liu Li
Published: April 2024

In recent years, China has made significant progress in the construction of highways, resulting in an improvedhighway network that has provided robust support for economic and social development. However, the rapid expansion of highway construction, power supply, and distribution has led to several challenges in mechanical and electrical engineering technology. Ensuring the safe, stable, and cost-effective operation of the power supply and distribution system to meet the diverse requirements of highway operations has become a pressing issue. This article takes an example of a highway electromechanical engineering power supply and distribution construction project to provide insight into the construction process of highway electromechanical engineering power supply and distribution technology.
The Aesthetics of Truth and Ecology: The World of Realistic Television Dramas
Authors: Zhang Jie
Published: April 2024

In the continuous dream-building process of China, the public has a broader interpretation of the concept ofhome and family wrapped around their daily lives. Family in their daily lives carries the love and care among individuals under the social attributes, while the unity of the country gives the public a firm foundation for life under the undertones of the growing scientific construction. Throughout the past two years, popular Chinese TV dramas, such as Age of Awakening, Ren Shi Jian, and Mountains and the Sea, have revealed the transformation in China’s development under the common terminology of multi-dimensional performance, which embodied the country and family under the great historical changes and reform of the country. This paper takes human behavior as the main perspective and expands the research on the common construction of family and nation based on aesthetics. Real aesthetics advocate through the real-life encounters of ordinary people to reflect contemporary social phenomena. This can stimulate social identity in audiences with the constructed ecology aesthetics by the community.
Enriching Professional Development in Disadvantaged Schools through the Targeting Talent Programme (TPP) Educators Enrichment Programme: Insights from Math and Science Educators
Authors: Sibisi Nonhle Tracey , Sibisi Nomathemba Nomakhosi
Published: April 2024

This study explores the lived experiences of educators from disadvantaged schools involved in professional development in the Targeting Talent Programme (TPP) at the University of the Witwatersrand. It elicits the perceptions of mathematics and science educators on professional development programmes. A qualitative research approach was employed, and data was collected through focus group discussions with 24 participants comprising Math and Science educators. The study’s findings indicated that acquiring the requisite knowledge and skills from participating in the programme improved the understanding of pedagogical content, skills and teaching methodologies. The major barrier besetting the realisation of educators’ professional development identified included the public-school system in South Africa characterised by resource constraints which limit educators’ innovative strategies in integrating technology into teaching and learning. The study revealed that reflection is required regarding the rules and policies regulating learners’ and educators’ use of technological gadgets. From the findings, it is recommended that designing and implementing educator professional development must be embodied within South African school policies.
ENHANCING BIOADSORPTION EFFICIENCY OF PEANUT SKIN BASED ON PHYSICAL AND CHEMICAL ACTIVATION METHODS IN FE2+ ION REMOVAL USING COLUMN TECHNIQUE IN ARTIFICIAL WASTEWATER
Authors: Fauzan Reza , Zaini Halim , Syafruddin  , Amalia Zuhra , Habibah Ummi , D Amir , Miswar
Published: April 2024

In the interest of efficient heavy metal ion removal from water, various methods such as aeration, coagulation, filtration, sedimentation, and adsorption have been thoroughly investigated. Adsorption, specifically the column method with groundnut shell powder as a bio adsorbent, stands out as a practical, effective, and efficient approach. In this study, a fixed variable of 50 g adsorbent, a particle size of 35 mesh, and an initial adsorbate concentration of 100 ppm was used, along with a 10-liter adsorbate volume and a flow rate of 4 liters per minute. Sampling intervals of 0, 15, 30, 45, 60, 75, 90, 105, 120, 135, and 150 minutes were chosen, and the independent variables encompassed untreated adsorbents, physically activated adsorbents, and chemically activated adsorbents using 1N H2SO4 and 1N NaOH. The outcomes revealed that the adsorption of Fe2+ was notably influenced by the type of activator. The highest Fe2+ removal percentage, 55.90%, was achieved at 135 minutes, showcasing the efficacy of the bioadsorption process. Notably, the optimal bioadsorbent activation was attained using 1N NaOH. This study provides valuable insights into the dynamics of heavy metal ion removal, emphasizing the significance of bioadsorption with groundnut shell powder and underscoring the impact of specific activation methods on the efficiency of the adsorption process.
WHY THEATRE? PERSPECTIVES FROM INDIAN THEATRE ARTISTES IN THE CONTEXT OF NĀṬYAŚĀSTRA
Authors: Rajurkar Raj Vishakha , Singh Dev Vrat
Published: April 2024

Nāṭyaśāstra is an Indian ancient Sanskrit text on dramaturgy written by Āchārya Bhartmuni in the 5th century. The story of the origin, development, and evolution of Nāṭyaśāstra is described in the very first chapter of the text. It also reveals the emergence of theatre practice. According to Nāṭyaśāstra, theatre serves the purpose of entertaining as well as educating its audiences. This paper aims to examine the contemporary theatre practice on the principle of Nāṭyaśāstra in this context. The objective of the present research paper is to study the motivation, inspiration, and purpose of contemporary theatre practitioners under the light of the purpose of theatre according to Nāṭyaśāstra.The present research is qualitative. The methodology employed for data collection is the interview of 46 theatre practitioners using semi-structured interviews. The data has been collected from prominent theatre festivals held in five different North Indian cities namely Delhi, Bhopal, Jaipur, Lucknow, and Patna. The analysis of the interviews is done using thematic analysis.The findings of the research show that contemporary theatre practitioners have personal aspirations as well as social obligations to practising theatre. Contemporary theatre practitioners also believe that theatre is a medium of entertainment as well as sensitizing people which aligns with the principle of Nāṭyaśāstra.