bluuebunny/crossref_metadata_2025 huggingface dataset:
Contesting Personalized Recommender Systems: A Cross-Country Analysis of User Preferences
Authors: Starke Christopher , Metikoš Ljubiša , Helberger Natali , de Vreese Claes
Published: August 2023

Very Large Online Platforms (VLOPs) such as Instagram, TikTok, and YouTube wield substantial influence over digital information flows using sophisticated algorithmic recommender systems (RS). As these systems curate personalized content, concerns have emerged about their propensity to amplify polarizing or inappropriate content, spread misinformation, and infringe on users' privacy. To address these concerns, the European Union (EU) has recently introduced a new regulatory framework through the Digital Services Act (DSA). These proposed policies are designed to bolster user agency by offering contestability mechanisms against personalized RS. As their effectiveness ultimately requires individual users to take specific actions, this empirical study investigates users' intention to contest personalized RS. The results of a pre-registered survey across six countries – Brazil, Germany, Japan, South Korea, the UK, and the USA – involving 6,217 respondents yield key insights: (1) A significant share of users would contest personalized RS, (2) the intention for algorithmic contestation is associated with individual characteristics such as users' attitudes towards and awareness of personalized RS as well as their privacy concerns, (3) German respondents are particularly inclined to contest personalized RS. We conclude that amending Art. 27 and Art. 38 of the DSA may contribute to leveraging their effectiveness in fostering accessible user contestation and algorithmic transparency.
Large Language Models for Text Classification: From Zero-Shot Learning to Instruction-Tuning
Authors: Chae Youngjin , Davidson Thomas
Published: August 2023

Advances in large language models (LLMs) have transformed the field of natural language processing and have enormous potential for social scientific analysis. We explore the application of LLMs to supervised text classification. As a case study, we consider stance detection and examine variation in predictive accuracy across different architectures, training regimes, and task specifications. We compare ten models ranging in size from 86 million to 1.7 trillion parameters and four distinct training regimes: prompt-based zero-shot learning; few-shot learning; fine-tuning; and instruction-tuning. The largest models generally offer the best predictive performance, but fine-tuning smaller models is a competitive solution due to their relatively high accuracy and low cost. For complex prediction tasks, instruction-tuned open-weights models can perform well, rivaling state-of-the-art commercial models. We provide recommendations for the use of LLMs for text classification in sociological research and discuss the limitations and challenges related to the use of these technologies.
Evaluasi Keberhasilan dalam Menjaga Konservasi Penebaran Beberapa Jenis Ikan di Waduk Penjalin, Jawa Tengah
Authors: Setiyo Hendrawan Andika Luky , Ghofar Abdul , Tjahjo Didik Wahju Hendro
Published: August 2023

Fish stocking is one efforts to optimize fish production. 137,000 fish including tilapia, silver barb, common carp and giant prawns were stocked in the Penjalin Reservoir. This study aims to evaluate the distribution of several types of fish in the Penjalin Reservoir including the ability to utilize feed and space resources, fish growth and the chances of being caught by fishermen. The method used is stratified random sampling. The research was conducted from December 2021 to February 2022 at 4 observation stations. Sampling of fish using gill nets with a mesh of 0.75; 1; 1.5; 2; 2.5 and 3 inches. In addition, data collection is assisted by enumerators. The results showed that the growth pattern of tilapia anf giant prawn is allometric negative, allometric positive for silver barb and common carp are isometric. Growth performance of stocked fish slow. Condition faktors for tilapia ranged from 0.78-1.45, silver barb 0.94-1.18, common carp 0.81-1.23 and giant prawns 0.75-1.14. Food habits analysis showed that the main food of tilapia is phytoplankton (99.9%), Silver barb is phytoplankton (90%), common carp is plants (85.71%) and giant prawns is mollusks (86.21%). Silver barb has a highest chance of getting caught by fishermen than the other fish.
Estimasi Karbon Pada Serasah dan Tegakan Dominan di Hutan Produksi Makbon KPHP Kabupaten Sorong
Authors: Ponisri Ponisri , Farida Anif
Published: August 2023

Litter is one of the places where carbon is stored in forests. It is important to know this because litter indirectly represents CO2 that is not released into the air through combustion. Likewise, vegetation plays an important role in CO2 absorption. Sorong Regency has a forest area that is divided into protected forests, nature reserves, limited production forests, permanent production forests, and convertible forests, as well as business permits for the utilization of timber forest products (IUPHHK). Such physical conditions cause the conditions of CO2 reserves and absorption to change. This study aims to determine litter biomass, carbon, and carbon percentage, and analyze dominant vegetation types in carbon stocks, carbon content, and CO2 absorption. The method used is the non-harvesting sampling method (non-destructive sampling) using allometric equations. The results showed that the highest litter biomass was in line 2, namely 4.571,63 grams with a carbon percentage of 32,940%. Carbon stocks for litter ranged from 0,792-2,149 kg, for a total of 6,523 kg. The dominant species for storing carbon in Makbon production forests are Ficus sp. at the sapling level and Guava/Syzygium sp. at the pole and tree levels.
Effect of Different Floral Preservatives on Vase Life of Marigold (Tagetes erecta L.)
Authors: Sharma Asmita , Khanal Bibek , Ojha Sabin Raj , Khanal Surya Prasad , Shahi Ramba , Basnet Manoj
Published: August 2023

Farmers have been growing marigold commercially but they are still lacking knowledge on procedure of postharvest handling of flowers. This has created a huge problem for those farmers since they cannot store their own produce for a longer period of time thus facing problems in marketing. In order to inform the farmers with the best means of preservation of cut flowers so that they could fetch the good market price for their product. A lab experiment to study “effect of different floral preservatives on vase life of marigold (Tagetes erecta L)” was conducted at Campus of Live Sciences, Tulsipur, Dang in a factorial Completely Randomized Design. Altogether 9 treatments were used as: Distilled Water, Silver Nitrate (100 ppm), Malic Acid (2000 ppm), Citric Acid (2000 ppm), Salicylic Acid (1000 ppm), Gibberellic acid (50 ppm), Kinetin (50 ppm), Naphthalene Acetic Acid (50 ppm), Silver Nitrate (50 ppm) + Citric Acid (1000 ppm) + Gibberellic acid (25 ppm). Results showed that the use of floral preservatives affects the parameters like flower diameter, weight, post-harvest life, blackening of petals and sepals and water uptake. It has been observed that minimum change in weight for kinetin (19.39%), minimum change in diameter for gibberellic acid (4.18%), maximum postharvest life was for gibberellic acid (14.66 days), minimum neck bending for kinetin (33%), maximum water uptake for kinetin (4.38%) and minimum blackening for growth hormones. From this experiment we can conclude that growth hormones (kinetin (50ppm) and gibberellic acid (50ppm)) are suitable for postharvest handling and storage of marigold.
Moringa oleifera: A Boon to Agriculture
Authors: Joshi Mukunda Raj , Pandit Sukriti
Published: August 2023

Moringa (Moringa oleifera Lam.), also known as the horseradish tree, drumstick, or sajna, is a multipurpose tree that is found around the world in tropical and subtropical climate zones. Having various medicinal and nutrition properties, it is also known as miracle tree. This review study was done for easy access and dissemination of scientifically proven and culturally practiced uses of moringa tree to the agricultural group of Nepal. Different information and data used in this paper were taken from the multiple journals found in online platform. The leaves of the moringa tree are particularly beneficial since they are rich in protein, calcium, iron, and vitamin C, while the bark aids in the absorption of heavy metals. The moringa plant’s leaf extracts have a number of beneficial effects, including anticancer, antibacterial, and antifungal characteristics. Making fermented plant juice from leaves and seeds can be used as organic fertilizer in agriculture. Application of moringa leaf extract throughout the booting, milking and heading stages significantly reduces wheat aphid populations. To control pests in stored grain, extracts from different moringa tree parts are employed. Moringa oleifera seed methanolic extract can be used to control Callosobruchus maculatus and Sitophilus oryzae on their respective grains. Application of the growth hormone present in moringa leaf extract is said to boost crop output by 45%. Due to its good green manure and fencing capacity, moringa plays crucial function in agroforestry system. Therefore, moringa is a multipurpose tree because of its benefits to agriculture, environment and human health.
A Comparative Analysis of Force Fields of Drug-Like Molecules: Omeprazole, Favipiravir and Amoxicillin by using Bonded and Non-Bonded Potential Distributions
Authors: Yadav P. K. , Lamichhane T. R.
Published: August 2023

This research aims to compare and analyze the force field parameters of drug-like compounds generated by the online servers CGenFF, SwissParam, and LigParGen. CHARMM27, OPLS-AA, and CHARMM36 force fields of amoxicillin, favipiravir, and omeprazole have been examined by bonded and non-bonded energy distributions of the potential function. The local terms of the force field function are bond length, bond angle, and dihedral potentials, while the non-local terms are van der Waals and pairwise electrostatic interactions. The parabolic curves of bond length potential appear to internally bend because of the larger values of force constants. The bond length and angle energies are lowest at reference values for each of the corresponding atom pairs in the molecules. The higher values of the bending force constant positively deflect the sinusoidal curve from the equilibrium position according to the dihedral angle energy distribution. The Lennard-Jones interaction exhibits the same repellent nature at closer ranges and the same attracting nature at farther ranges whereas a mildly differentiated interaction is seen at the intermediate state as a result of changing well-depth parameters. Depending on the size of the optimized partial charges, it is discovered in electrostatic interaction that the distributions of end-to-end lengths of identical atom pairs are more exponentially skewed from one another. The main cause of inconsistency in the results of MD simulations for the same protein-ligand system is due to the shifted topology and parameters.
Molecular Dynamics Study of Peptide in Water at Different Temperature
Authors: Chaudhary U. , Kaphle G. C.
Published: August 2023

Molecular dynamics approach has been carried out to study the structural properties of peptide to estimate the self-diffusion coefficients of water at different temperatures 290 K, 300 K, and 310 K respectively. The energy profiles show the stability of system which ensures a well-balanced molecular structure of the system. The radial distribution functions (RDFs) of the solvent-solvent, solute-solute, and solute-solvent show the distribution of system within the required references. The self-diffusion coefficients of water have been determined using respective mean square displacement (MSD) curves through the Einstein’s relation. The self-diffusion coefficients of water at different temperatures are 0.44 ×10-5 cm2s-1, 0.48 ×10-5 cm2s-1, and 0.50 ×10-5 cm2s-1 respectively. Calculations show that the MSD of water throughout the system is increasing on increasing temperature. The results are also valid with the theoretical as well as available experimental data.
Determination of Variation of Mass with Gravity
Authors: Khadka C. B.
Published: August 2023

The paper demonstrates that the theory of mass and gravity in the existing normally acknowledged version of theory of gravitational red-shift is completely erroneous. What makes it erroneous is that the frequency of particle in a gravitational field is considered to change depending on its location while mass of particle is treated as constant parameter. This paper predicts that a body in a gravitational field of escape velocity Ve will be more massive by a factor of 1 + (Ve2/C2) , where C is the speed of light, as compared to mass of a similar body outside the field. It manifests that mass of a body measured at earth surface is different than actual mass because of the influence of gravity. If m' and m denote mass of body within and beyond the gravitational field respectively, then the mass (m') measured at earth surface as compared to actual mass (m) is given by the formula m' = m (1+1.39 × 10-9). It reveals that an actual relative mass change at earth m' - m/m = 1.39 × 10-9) is extremely small, with change measure in nanogram. Based on this postulate of variation of mass with gravity, the correct criteria for a particle to be inside black hole turns out to be m'>2m. Therefore, a gravitational field is a black hole if the mass of a body inside the field will be more than two times of its actual mass. In this highly interesting topic, the particular purpose is to present a succinct and carefully reasoned account of new aspect of gravitational red shift which properly allows to determine the change of mass with gravity.
Structural, Morphological, and Textural Properties of Coprecipitated CaTiO3 for Anion Exchange in the Electrolyzer
Authors: Parajuli D. , Murali N. , Samatha K. , Shah N. L. , Sharma B. R.
Published: August 2023

The limitation in fossil fuel and the emission of greenhouse gases (GHG) resulting in global warming is one of the global challenging issues. Similarly, efficient and cost-effective renewable energy resources are always in demand for the overcome of the limitation. One of the best alternatives to fossil fuels based on renewable energy sources is hydrogen fuel. The main component of the hydrogen fuel generator is the Electrolyzer. Among different types of electrolyzers, the incorporation of an anion exchange membrane is one approach. In this work, we are focusing on the preparation, characterization, and analysis of anion exchange material CaTiO3 used for the electrolyzer. A co-precipitation method was used for the preparation of CaTiO3 XRD shows the orthorhombic structure of the CaTiO3. FT-IR shows the vibrational spectra of CaTiO3. The particles were spherical and crystalline with an average size of 200 nm when viewed through the Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM), and High-Resolution Transmission Electron Microscopy (HRTEM). The SAED pattern verifies the single crystalline nature of the sample. In this way, the CaTiO3, the anion exchange agent was synthesized and characterized successfully.
Determination of polysaccharide and phenolic contents and antioxidant activity of the crude extract from mycelial biomass of strain Tropicoporus linteus NTH-PL3
Authors:   Thai Nguyen University of Agriculture and Forestry, Nguyen Manh Tuan , Hoang Van Hung ,   Thai Nguyen University of Agriculture and Forestry, Do Thi Hien ,   Thai Nguyen University of Agriculture and Forestry, Do Bich Due ,   Thai Nguyen University of Agriculture and Forestry, Pham Thi Phuong Lan ,   Thai Nguyen University of Agriculture and Forestry
Published: August 2023

Tropicoporus (synonym Phellinus) mushroom is one of the precious medicinal mushrooms and has been proven to play a significant role in supporting health. However, studies on the Tropicoporus mushroom have only been carried out in our country within the last ten years, so the scientific data on this mushroom source is not really rich. This study aimed to add research data on molecular identification of strain NTH-PL3 collected in nature and determination of bioactive compounds, as well as antioxidant activity of the total extract from mycelium of Tropicoporus. Results of rDNA ITS sequence analysis showed that strain NTH-PL3 belongs to Tropicoporus linteus species with the highest similarity in ITS sequence of 99.87%. The total yield of bioactive compounds extracted from the mycelium using 75% methanol was 29.75±3.84%. In the crude bioactive extract, total polysaccharide content was 23.72±1.34 mg glucose/g and 18.54±1.87 mg gallic acid/g for phenolic. EC50 values for 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and ferrous ion chelating ability of total crude bioactive extract from mycelium of Tropicoporuswere 268.54±3.89 and 411.65±10.87 μg/ml, respectively.
Crack detection in reinforced concrete beams under various loadings using the modal strain energy method and confusion matrix model
Authors:   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City, Pham Minh Nhan ,   Vietnam National University Ho Chi Minh City, Nguyen Chi Thien ,   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City,   Vietnam National University Ho Chi Minh City, Le Thanh Cao ,   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City,   Vietnam National University Ho Chi Minh City,   Faculty of Civil Engineering, Nha Trang University, Dinh Duy Vu ,   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City,   Vietnam National University Ho Chi Minh City, Le Ba Tung ,   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City,   Vietnam National University Ho Chi Minh City, Ho Duc Duy ,   Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City,   Vietnam National University Ho Chi Minh City
Published: August 2023

In this study, a damage detection method for reinforced concrete (RC) beams using the modal strain energy (MSE) method combined with a confusion matrix model is proposed. This method is used for identifying the crack zone position and length of RC beams under various loadings. The beam is modelled by ANSYS APDL software. To prove the finite element model’s validity, the static properties of the model are compared with experimental data and theoretical calculation. From the natural frequencies and mode shapes at different load levels, a damage index is calculated using the MSE method. The crack zone is detected by comparing the damage index with a proposed damage threshold. Then, the damage detection method’s accuracy is evaluated by the confusion matrix model. Finally, the results from this study show that the proposed method can detect the position and length of the crack zone in the RC beam under various loadings with high accuracy.
Research and development of a laser beam scannerfor a fractional therapy laser
Authors:   Laser Technology Center, National Center for Technological Progress, Phan Thi Canh , Nguyen Tuan Anh ,   Laser Technology Center, National Center for Technological Progress, Thai Quang Tung ,   Laser Technology Center, National Center for Technological Progress, Ha Hoai Nam ,   Laser Technology Center, National Center for Technological Progress
Published: August 2023

Thispaper presentstheresultsofresearch andfabrication ofalaserbeamscannerusedin afractionaltherapylasersystembasedonfactionaltechnologytosegmentthelaserbeamfortreatment.Thebeamscanningprocessisperformed bycontrollingtherotationangleoftwogalvomotorsalong areasincludingsquare-rectangle,circle-ellipse,isosceles triangle,isoscelestrapezoid,and rhombus,havebeen developed,surveyed,andevaluatedtoestablishasetofoptimal controlparametersforthetreatmentareas.Thesuccessful manufactureofthelaserbeamscannerallowstoactively
Determination of nitrate reduction reaction products on Cu catalyst by UV-Vis spectroscopy and online gas chromatography
Authors:   Institute of Chemistry, Vietnam Academy of Science and Technology, Truong Thi Binh Giang ,   College of Education, Vinh University,   Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Duong Tuan Hung ,   Institute of Chemistry, Vietnam Academy of Science and Technology, Vu Duc Loi ,   Vietnam - Korea Institute of Science and Technology, Hoang Thi Huong Thao ,   Institute of Chemistry, Vietnam Academy of Science and Technology
Published: August 2023

Nitrate, well-known as a harmful contaminant in waste and groundwater systems, is an issue in Vietnam and many other countries globally. Many techniques have been developed for the treatment of nitrated polluted water, in which the electrochemical reduction of nitrate is attracting many researchers due to its high treatment efficiency with any type of water, scalability with low investment, and maintenance costs. A key challenge to study the electrochemical reduction of nitrate is determining reaction products conveniently and accurately for better evaluation of the yield and efficiency of the main products on each catalyst. In this study, a semi-flow cell was developed and utilized as an electrochemical cell for the reduction of nitrate, allowing the gas to flow directly into the gas chromatography (GC) for N2 detection during the reaction. Meanwhile, UV-Vis spectroscopy was utilized to detect NO2- and NH4+ after the reaction. The nitrate reduction on the Cu cathode was tested to prove the suitability of the electrolysis and analysis setup for the nitrate reduction reaction.
Development of an ILC controller for the Droplet-on-Demand generation system
Authors:   VNU University of Engineering and Technology, Tran Thanh Hang , Tran Nhu Chi ,   VNU University of Engineering and Technology, Le Van Chieu ,   VNU Hanoi University of Science, Bui Thanh Tung ,   VNU University of Engineering and Technology, Nguyen Thi Thanh Van ,   VNU University of Engineering and Technology
Published: August 2023

The droplet-on-demand systems have been increasingly attracting attention from many research groups. The droplet-on- demand system is a promising platform for many biochemical applications, especially for drug delivery applications, where the matter quantity requires very high accuracy, in microliter- scale or even in nanoliter-scale, for enhancing the efficiency, reducing the toxicity as well as the adverse effects of medicines. In order to generate microdroplets, microfluidic technology is emerged as one of the most effective methods. In this paper, we propose a droplet-on-demand generation system based on the Y-junction microfluidic structure with the generated droplet sizes are adjusted by iterative learning control (ILC) technique. The ILC controller can modify the current control input based on the error information measured during earlier experimental procedures, resulting in the desired droplet size in the proposed Y-junction microfluidic channel. The effectiveness of the ILC method was validated by experiments. The obtained results show that the proposed system can generate the required droplet size after 6 to 7 iterations. The results also prove the potential of integrating the ILC technique in the microdroplet generation system. The propose system can be extended to apply in the drug delivery systems for patients in hospitals or chemical mixing systems.
Assess the wastewater treatment efficiency of the rice paper craft village with activated sludge supplemented with probiotics
Authors:   Joint Vietnam - Russia Tropical Science and Technology Research Center, Southern Branch, Vu Thi Minh Chau , Nguyen Trong Hiep ,   Joint Vietnam - Russia Tropical Science and Technology Research Center, Southern Branch, Mai Quang Tuyen ,   Joint Vietnam - Russia Tropical Science and Technology Research Center, Southern Branch, Nguyen Duc Thinh ,   Joint Vietnam - Russia Tropical Science and Technology Research Center, Southern Branch, Le Thu Thuy ,   Hanoi University of Natural Resources and Environment, Le Minh Tuan ,   Institute of Environmental Technology, Vietnam Academy of Science and Technology
Published: August 2023

This study was carried out to assess the wastewater treatment efficiency of rice paper craft villages with activated sludge supplemented with probiotics. With probiotic BHT preparation (including strains: Bacillus thuringiensis, Bacillus cereus, Bacillus sp., Pseudomonas sp., Saccharomyces cerevisiae), the density of microorganisms of 108 CFU/g, selecting the appropriate retention time of 9 days for the highest treatment efficiency, in which COD treatment reached 81%, BOD5 treatment reached 82%, TSS treatment reached 55.7% and met QCVN 40:2011/BTNMT (column B). When adding BHT and Bio-EM probiotics to activated sludge to treat rice paper processing wastewater with a retention time of 16 hours, the initial COD value of 500 mg/l, COD treatment efficiency of rice paper processing wastewater by activated sludge, activated sludge supplemented with BHT, and activated sludge supplemented Bio-EM was 93.3, 93.5, and 94.4%, respectively and suitable for rice paper processing influent with COD less than 500 mg/l and the frequency of probiotics addition was once every 15 days with a microorganism density of 108 CFU/g.
Enhancing Employer Brand Hotel Industry Through Knowledge-Based Recruitment and Employee Value Propositions
Authors: Darawanti Tri , Silitonga Parlagutan , Raharjo Pamuji
Published: August 2023

This study investigates the role of knowledge-based recruitment, a component of knowledge-based human resource management (K-B HRM), in mediating the relationship between the value proposition of key employees and employer branding. This research uses the PLS-SEM method and purposive sampling to survey employees working in 3- to 5-star hotels in West Java and Jakarta. The results reveal that the value proposition of key employees has a positive and significant impact on both knowledge-based recruitment and employer branding. However, it is observed that knowledge-based recruitment only has a positive but insignificant effect on employer brand, indicating that it does not significantly mediate the relationship between key employees' value proposition and employer branding. These findings offer valuable insights to hotel companies in their efforts to enhance their reputation and image as sought-after workplaces for top talent within the hotel industry. Furthermore, these findings support the Indonesian government's initiatives to foster the development of human resources in the tourism sector. By strategically optimizing key employees' value propositions and diligently implementing knowledge-based recruitment practices, hotel companies have the remarkable opportunity to enhance their employer brand significantly.
The Student Veteran Instructional Communication Training (SVIC): An Analysis of Student Veteran Instructional Needs and Corresponding Instructional Behaviors
Authors:   University of Nebraska - Lincoln, Kauer Trevor , Houser Marian ,   Texas State University, San Marcos
Published: August 2023

Student veteran’s (SV) transition into academic life is challenging, and faculty/staff are uniquely positioned to support this change. Research calls for academic faculty/staff training to support SVs’ and aid in their retention and academic success. Framed by Rhetorical and Relational Goal Theory (RRGT; Mottet et al., 2006), qualitative data identified SVs’ instructional communication needs and produced a faculty/staff training program. Twenty-three SVs were interviewed about their instructional communication needs, namely, a need for: Structure, Integration, and Awareness. These needs were translated into instructor communication behaviors, and a SV instructional communication training (SVIC) was created to (a) promote organization, (b) facilitate assimilation, and (c) demonstrate conscientiousness to meet the rhetorical and relational of SVs.
Surveilling the web, mobile, and language accessibility of Communication’s digital presence within institutions of higher education globally
Authors:   Pittsburg State University, Mason Alicia , Spencer Elizabeth ,   University of Kentucky, Westhoff Megan ,   Pittsburg State University, Livingston Kristen ,   Pittsburg State University, Compton Josh ,   Dartmouth College
Published: August 2023

This study aims to understand the general web accessibility of digital information networks which may serve as barriers for access to the global discipline of Communication through institutional and departmental websites, specifically for persons with disabilities and those with limited English proficiency (LEP). Our exploratory content analysis relies on computer-aided software to systematically analyze the departmental home pages of websites of institutional members of the International Communication Association (ICA), N = 77, representing 26 countries, globally. Findings from this study help us to: (1) better understand the general web, language, and mobile accessibility of discipline-related online information; (2) identify strengths and opportunities for improvement; and, (3) to reflect upon the anticipated barriers impacting persons with disabilities when accessing higher education information online.
PENETAPAN KADAR PRODUK MAKANAN ASAM CUKA (CH3COOH) YANG BEREDAR DIPASARAN
Authors: Kuna Moh Rasyid
Published: August 2023

Asam cuka atau lebih dikenal sebagai asam cuka (CH3COOH) adalah suatu senyawa berbentuk cairan, tak berwarna, berbau menyengat, memiliki rasa asam yang tajam dan larut didalam air, alkohol, gliserol, eter. Mengkonsumsi asam cuka dengan jumlah yang banyak dalam waktu jangka panjang dan dalam kadar atau konsentrasi yang tinggi akan dapat menyebabkan penyakit Hipokalemia (kadar kalium rendah dalam darah), Hyperreninemia (adanya konsentrasi renin yang sangat tinggi dalam darah), Osteoporosis (penurunan kepadatan tulang). Metode penelitian dengan mempreparasi larutan natrium hidroksida dan asam oksalat, kemudian menstandarisasi bahan natrium hidroksida dengan asam oksalat setelah itu penentuan kadar asam dalam asam cuka perdagangan. Hasil perhitungan penentukan kadar asam cuka yang beredar dipasaran menunjukan kadarnya lebih tinggi yaitu 5,9% hal ini tidak sesuai dengan yang tertulis pada laber produknya yaitu 5,4%
ANALISIS KETERAMPILAN PROSES SAINS MAHASISWA KIMIA UIN SYARIF HIDAYATULLAH JAKARTA PADA PRAKTIKUM KIMIA ANORGANIK DARI RUMAH
Authors: Cahya Nine Novita , Saridewi Nanda , Muslim Buchori
Published: August 2023

Keterampilan abad ke-21 perlu dilatih agar mahasiswa mampu menghadapi tantangan zaman, salah satunya dengan mengembangkan keterampilan proses sains yang didukung dengan salah satu aspek penilaian dalam taksonomi bloom, yakni keterampilan. Salah satunya, pengembangan keterampilan melalui kegiatan praktikum dilakukan di rumah dengan alat dan bahan sehari-hari. Penelitian ini bertujuan untuk mengetahui keterampilan proses sains (KPS) mahasiswa kimia UIN Syarif Hidayatullah Jakarta. Metode yang digunakan deskriptif kuantitatif dengan subjek penelitian mahasiswa kimia semester tiga yang berjumlah 62 orang dengan instrumen lembar observasi. Hasil penelitian menunjukkan KPS mahasiswa berada pada kategori baik dengan persentase rata-rata 72%. Analisis KPS pada kelas A, B, dan C, memiliki rata-rata persentase sebesar 75%, 69%, dan 71% dengan kategori baik. Analisis berdasarkan kemampuan kognitif menunjukkan persentase rata-rata mahasiswa dengan kemampuan kognitif tinggi, sedang, dan rendah sebesar 72%, 71%, dan 73% dengan kategori baik. Analisis KPS berdasarkan gender menunjukkan persentase mahasiswa laki-laki dan perempuan 72% dengan kategori baik.
PENGEMBANGAN MEDIA POP - UP BOOK PADA MATERI HUKUM DASAR KIMIA UNTUK SISWA KELAS X DI SMA NEGERI 12 BANJARMASIN
Authors: Hasanah Nurul , Wardhani Rr. Ariessanty Alicia Kusuma , Prasiska Emilda
Published: August 2023

Penelitian ini bertujuan untuk mengetahui kevalidan dan kepraktisan media Pop – Up Book pada materi hukum dasar kimia untuk digunakan oleh siswa kelas X di SMA Negeri 12 Banjarmasin. Metode penelitian yang digunakan adalah Research and Development (R&D) mencakup 5 tahapan yaitu (1) Penelitian dan pengumpulan data (Research And Information Collecting), (2) Perencanaan (planning), (3) Pengembangan draf produk (Develop Preliminary Of Product), (4) Uji coba lapangan awal (preliminary field testing). (5) Revisi hasil uji coba lapangan awal (Main Product Revision). Kevalidan media hasil pengembangan dinilai oleh 3 orang validator ahli, yaitu 2 orang dosen Program Studi Pendidikan Kimia UNISKA dan 1 orang guru mata pelajaran kimia SMAN 12 Banjarmasin. Data kepraktisan berdasarkan respon guru dan siswa. Berdasarkan hasil penelitian diketahui bahwa media Pop-Up Book yang dikembangkan termasuk kategori sangat valid (dapat digunakan tanpa revisi), dengan hasil penilaian kevalidan rata-rata sebesar 84%. Penilaian kepraktisan media Pop-Up Book didasarkan hasil angket respon guru diperoleh nilai sebesar 80% dengan kategori praktis, dan respon dari siswa memperoleh rata-rata presentase sebesar 86,95% dengan kategori sangat praktis, sehingga media Pop-Up Book yang dikembangkan valid dan praktis untuk digunakan oleh siswa
Probióticos como prevención y tratamiento a las infecciones del aparato reproductor femenino
Authors: Largo Víctor , Muñoz Juan
Published: August 2023

Las infecciones vulvovaginales recurrentes se han convertido en un problema epidemiológico y clínico, además traen grandes consecuencias sociales y psicológicas para la mujer. El desarrollo de resistencia a los antimicrobianos de uso regular para su tratamiento y una mayor comprensión de la función de la microbiota vaginal han planteado la necesidad de nuevas estrategias de tratamiento. Los probióticos han surgido como una alternativa a los antibióticos debido a su capacidad para restablecer y mantener el equilibrio de la microbiota, fortalecer el sistema inmune, y mostrar propiedades antimicrobianas. El objetivo de esta revisión narrativa, es conocer el papel de los probióticos en la prevención y tratamiento de las infecciones más comunes, es decir, vaginosis bacteriana y candidiasis vulvovaginal y brindar una actualización sobre su comprensión actual. Para ello, se recuperaron estudios relevantes de las fuentes de datos de los últimos 5 años. Los estudios in vitro y clínicos muestran que los probióticos basados principalmente en cepas de Lactobacillus y en levaduras (Saccharomyces cerevisiae) tienen efectos positivos en la composición de la microflora vaginal al promover la proliferación de Lactobacilos ssp., recuperar el equilibrio de la microbiota vaginal y prevenir infecciones. También muestran las propiedades antimicrobianas de los probióticos contra G. vaginalis y C. albicans y, por lo tanto, son útiles para el tratamiento y la prevención de la VB y la CVV. Los probióticos se presentan como una alternativa clínica viable frente al tratamiento convencional al disminuir el uso de antibióticos promoviendo un menos desarrollo de resistencia bacteriana y menos recidivas.
Global Fragmentation Phenomenon: New Imperatives of the Transcontinental Cooperation for Eurasia and Latin America
Authors: Plachinda Larissa
Published: August 2023

The article analyzes current state of the global economy and the emerging phenomenon of global fragmentation amid the formation of new regional centers of economic growth. Particular attention is paid to the intercontinental cooperation of the countries of Latin America and the Caribbean (LAC) with Eurasia, primarily with the member states of the Eurasian Economic Union (EAEU). The influence of the Western countries’ sanctions on the development of integration processes in the EAEU and Latin America is studied, whereas potential areas for increasing cooperation axis EAEU-Latin America are highlighted.
Taiwan Crisis 2022: Korean Dimension
Authors: Babaev Kirill V.
Published: August 2023

The article describes most important statements and actions of officials, experts and media of both Korean states within the escalation of the situation around Taiwan in summer and autumn 2022, as well as proposes perspectives of foreign policy of North and South Korea in case the conflict is escalated further. North Korea sees the Taiwan issue solely as an internal Chinese affair, and to Pyongyang, the US intervention is an attempt to destabilize the international situation. Seoul, being both a military and political ally of the United States and a major trading partner of the People’s Republic of China, is trying not to anger any of the two great powers. South Korean experts fear that in the event of a military conflict between the US and China, Seoul would not be able to stay neutral. Seoul also does not exclude North Korea taking advantage of the US-PRC conflict and escalating the situation on the peninsula. In this turn of events, the risk of turning the Korean peninsula into a flashpoint is extremely high.
“Lethality”: is it permissible to introduce into scientific circulation as an independent medical and legal category V.N. Galuzo. Lethality (medical and legal research)
Authors: Redkous Vladimir M.
Published: August 2023

The review not only draws attention to the results of the first monographic medical and legal study of the patterns of lethality development, but also evaluates them from the standpoint of the development of jurisprudence in the Russian Federation. The monograph makes a not unsuccessful attempt to correlate several terms: “lethality”, “vitality”, “mortality”, “mortality”. At the same time, a fundamentally important provision is substantiated: the inadmissibility of identifying the terms “lethality” and “mortality”. This made it possible to avoid the traditional approach in covering mortality. In addition, the use of the term “vitality” presupposes the presence of thanatological education of people in educational institutions in the universities of the country, to which clearly insufficient attention is paid
PEMBERDAYAAN MASYARAKAT MELALUI EDUKASI MENJAGA POLA MAKAN UNTUK MENCEGAH TERJADINYA HIPERTENSI DIKELURAHAN KALIDONI PALEMBANG
Authors: Utama Yofa Anggriani
Published: August 2023

Hipertensi merupakan penyakit tidak menular yang menjadi salah satu penyebab utama kematian didunia, Hipertensi  penyakit pembunuh  ketiga salah satu penyakit yang dapat menyebabkan kematian didunia, hipertensi memelurkan perawatan dalam jangka waktu yang lama sehingga dapat mencegah berbagai macam komplikasi. Adapun tujuan dari kegiatan pengabdian kepada masyarakat ini untuk meningkatkan pengetahuan masyarakat mengenai menjaga pola makan untuk mencegah terjadinya hipertensi, metode pelaksanaan dengan penyuluhan Kesehatan di RT 03 kelurahan Kalidoni Palembang, Kegiatan ini diikuti oleh 20 orang peserta. Berdasarkan hasil kegiatandidapatkan bahwa tingkat pengetahuan sebelum penyuluhan sebanyak 16 orang peserta (80%) peserta memiliki pengetahuan yang kurang baik mengenai pola makan untuk mencegah terjadinya hipertensi. Setelah diberikan penyuluhan Kesehatan adanya peningkatan pengetahuan sebanyak 17 orang peserta (85%) peserta memiliki pengetahuan yang baik mengenai pola makan untuk mencegah terjadinya hipertensi.Kata kunci : Pengetahuan, pola makan, hipertensi
SOSIALISASI GERAK DASAR ATLET RENANG ABG WATER PARK KOTA PADANG
Authors: Naldi Jepri , Septi Wahyuni Yulia , Harum Pratiwi Sekar , Botman Botman
Published: August 2023

Kegiatan Sosialisasi gerak dasar ini di lakukan kepada atlet renang ABG water park kota padang, yang bertujuan untuk memberikan pengetahuan tentang materi gerak dasar. Metode yang diberikan adalah berupa pengenalan materi secara ceramah dan diskusi dan selanjutnya dilakukan praktek bersama atlet. Sebanyak 8 orang atlet yang mengikuti kegiatan ini. Melalui kegiatan ini diperoleh peningkatan pengetahuan mengenai materi gerak dasar untuk atlet. Melalui angket yang diberikan sebelum penyelenggaraan diketahui bahwa atlet renang belum mengetahui terakit tentang gerak dasar. Sebelum pemberian materi gerak dasar baik teori maupun praktekdilakukan post test menggunakan soal sebanyak 10 soal dan terdapat 30% dapat menjawab dengan benar. Kemudian setelah diberikan sosialisasi sebanyak 75% dapat menjawab soal post test yang diberikan. Dengan demikian terdapat dampak yang positif dari penyelenggaran sosialisasi ini terhadap atlet renang ABG Water Park di Kota PadangKata Kunci: Gerak dasar, Atlet renang ABG
KEANEKARAGAMAN JENIS AMFIBI (ORDO ANURA) DI HUTAN LINDUNG NAGARI BATU BAJANJANG KECAMATAN TIGO LURAH KABUPATEN SOLOK
Authors: Fauzan Fauzan , Susilastri Susilastri , Afzian Renfil
Published: August 2023

Hutan menurut Undang-Undang Repuplik Indonesia Nomor 41 tahun 1999 adalah suatu kesatuan ekosistem berupa hamparan lahan berisi sumber daya alam hayati yang didominasi pepohonan dalam persekutuan alam lingkungannya yang satu dengan yang lainnya tidak dapat dipisahkan. Hutan merupakan sumberdaya alam yang memiliki banyak manfaat bagi kehidupan masyarakat, hutan juga berfungsi sebagai habitat bagi beragam flora dan fauna termasuk amfibi. Amfibi merupakan salah satu komponen penyusun ekosistem yang berfungsi sebagai bioindikator lingkungan. Penelitian ini bertujuan untuk mengetahui keanekaragaman jenis amfibi (ordo anura) di Hutan Lindung Nagari Batu Bajanjang Kecamatan Tigo Lurah Kabupaten Solok Metode yang digunakan pada penelitian ini adalah Visual Encounter Survey (VES) dan linetransek, kemudian setiap individu yang ditemukan diidentifikasi dan dilakukan analisis indeks keanekaragaman, indeks kemerataan, dan indeks kesamaan jenis. Hasil penelitian ditemukan sebanyak 107 individu amfibi yang terdiri dari 9 jenis, 3 famili yaitu bufonidae 2 jenis, Dicroglossidae 2 jenis, dan Ranidae 5 jenis. Pada habitat akuatik ditemukan 89 individu, dan habitat terestrial 18 individu. Nilai keanekaragaman total dikategorikan sedang yaitu H’=1,83 pada habitat akuatik H’=1,86 dan terestrial H’=1,72. Nilai kemerataan didapatkan E>0,6 yang artinya di lokasi tersebut kemerataannya tinggi dengan nilai total yaitu E=0,83 pada habitat akuatik E=0,81 dan terrestrial=0,96 dan tingkat kesamaan jenis amfibi (ordo anura) pada kedua habitat yaitu 71% yang dikategorikan tinggi.

Kata kunci : Amfibi, Anura, Keanekaragaman, Hutan Lindung, Kabupaten Solok.
PENGGUNAAN MEDIA DRINGKING STRAWS PADA SISWA KELAS IIC MIN I PADANG UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA
Authors: Ekawati Ridania , Susanti Dini , Lasari Yufi Latmini , Tiara Junita
Published: August 2023

Kondisi pembelajaran di dalam kelas pada mata pelajaran Matematika khususnya di Min 1 Padang pada siswa kelas IIC, terlihat guru masih mengajar menggunakan metode cermah. Siswa terlihat pasif, sehingga kurang mendorong siswa untuk terlibat aktif selama proses pembelajaran. Untuk itu dibutuhkan Pembelajaran yang beragam salah satunya dengan menggunakan Media Dringking Straws dan kantong bilangan. Penelitian ini bertujuan untuk mendeskripsikan perencanaan, pelaksanaan dan peningkatan pada hasil belajar matematika dengan menggunakan media Dringking straws dan kantong bilangan. Untuk Jenis penelitian ini adalah penelitian tindakan kelas. Subjek penelitian adalah siswa kelas I MIN 1 Kota Padang yang berjumlah 26 orang. Alur dalam penelilitian ini dilaksanakan atas dua siklus, setiap siklus terdapaat dua kali pertemuan, pada setiap pertemuan meliputi perencanaan, pelaksanaan, pengamatan dan refleksi yang dilakukan oleh peneliti sebagai praktisi dan teman sejawat sebagai observer. Hasil penelitian ini mengalami peningkatan dari siklus ke siklus, disana terlihat bahwa penilaian RPP siklus I adalah 82% dan 83% dalam kategori Baik, siklus II adalah 95% dan 97% kategori Sangat Baik. Untuk hasil pengamatan aktivitas guru sendiri pada siklus I dengan rata-rata 78,7% dengan kategori baik, mengalami peningkatan siklus II menjadi 96% dengn kategori ssangat baik. Hasil pada penilaian aktivitas siswa siklus I rata-rata dengan nilai 69% dengan kategori cukup. Aktivitas siswa mengalami peningkatan 83,5% dengan kategori baik. Untuk hasil belajarpu mengalami peningkatan Hasil belajar siswa pada siklus I pertemuan I dengan nilai rata-rata 65% kategori Cukup, siklus I pertemuan II 74% dengan kategori Cukup, siklus II pertemuan II adalah 85% kategori Baik, dan pada Siklus II Pertemuan II adalah 91% dengan kategori Sangat Baik.

Kata Kunci: PTK, Matematika, kantong bilangan, SD
Investigating the Influence on the Electro-Conductive Properties of Leather as a Result of Natural Aging
Authors:   Department of Textile and Fashion, Polytechnic University of Tirana, Tirana, Albania, Hylli Majlinda , Shabani Aulon ,   Department of Electrotechnics, Polytechnic University of Tirana, Tirana, Albania, Kazani Ilda ,   Albanian Nanoscience and Nanotechnology Unit (NanoAlb), Academy of Sciences, Tirana, Albania, Guxho Genti ,   Department of Textile and Fashion, Polytechnic University of Tirana, Tirana, Albania
Published: August 2023

Conductive leather and its use in smart products have found a lot of interest. Leather behaves as a good insulator, so it was treated with electrically conducting polypyrrole using a chemical polymerization technique to give it conductive characteristics. The electro-conductive properties are obtained by using the double in–situ oxidative polymerization of pyrrole. The electrical properties of conductive samples are studied using the Van Der Pauw method as a measuring method. The conductive leather transformation process was carried out during the 2018-2020 period, and the conductive leather samples were preserved in room conditions until the year 2023. The effect of natural ageing on the electro-conductive properties of conductive leather is the focus of this research. The results show that environmental factors influence polymer breakdown and stability, by causing an increase in electrical resistance. The changes in electrical surface resistance, as the effect of the ageing factor, vary from 39.8% to 129.9%. Those changes in electrical resistance indicate that ageing is one of the major concerns in the electrical properties and stability of conductive leather samples, so the performed measurements have importance in providing information for the researchers and designers regarding the conductivity changes over time as a result of natural ageing, which would like to work with conductive leather on smart products.
Rigidity and nonexistence of complete hypersurfaces via Liouville type results and other maximum principles, with applications to entire graphs
Authors: Antonia Railane , Molica Bisci Giovanni , de Lima Henrique F. , Santos Márcio S.
Published: August 2023

We investigate complete hypersurfaces with some positive higher order mean curvature in a semi-Riemannian warped product space. Under standard curvature conditions on the ambient space and appropriate constraints on the higher order mean curvatures, we establish rigidity and nonexistence results via Liouville type results and suitable maximum principles related to the divergence of smooth vector fields on a complete noncompact Riemannian manifold. Applications to standard warped product models, like the Schwarzschild, Reissner-Nordström and pseudo-hyperbolic spaces, as well as steady state type spacetimes, are given and a particular study of entire graphs is also presented.
Comparison results for a nonlocal singular elliptic problem
Authors: Brandolini Barbara , de Bonis Ida , Ferone Vincenzo , Volzone Bruno
Published: August 2023

We provide symmetrization results in the form of mass concentration comparisons for fractional singular elliptic equations in bounded domains, coupled with homogeneous external Dirichlet conditions. Two types of comparison results are presented, depending on the summability of the right-hand side of the equation. The maximum principle arguments employed in the core of the proofs of the main results offer a nonstandard, flexible alternative to the ones described in ( Arch. Ration. Mech. Anal. 239 ( 2021 ) 1733–1770, Theorem 31). Some interesting consequences are [Formula: see text] regularity results and nonlocal energy estimates for solutions.