bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring the impact of Workplace Ostracism on Work Engagement: Examining the intervening role of Psychological Empowerment
Authors: Shaikh Nazir Ahmed , Talreja Kewal Ram , Imran Muhammad
Published: December 2022

We all want to belong, fit in, and be accepted. Workplace Ostracism (WPO) is a personal recognition and judgment of employees who are banished, ignored by coworkers, or feeling ignored within the organization. The dismissive effect of workplace ostracism on employees can be witnessed in reducing employees' work performance, creativity and stimulation of negative emotional state. In order to explore the cause and effect between workplace ostracism and work engagement, this research intends to take psychological empowerment (PE) as a mediating variable to investigate management-level employees of the top 3 banks of Pakistan, namely Habib Bank Limited (HBL), National Bank of Pakistan (NBP), and United Bank Limited (UBL), and construct a research model on the association between employees' work engagement (WE) and work ostracism under the intervening effect of psychological empowerment. The study design was quantitative and carried out with a simple random sampling technique. A total of 598 responses were obtained from the management-level staff of the banks. The demographic profiles of the respondents were carried out in SPSS version 26. The correlation analysis and Structural equation model technique were used with the help of AMOS version 23. The results suggest that Workplace Ostracism is negatively linked with Work engagement and Psychological empowerment. Further, work engagement is positively correlated with Psychological empowerment. The Confirmatory Factor Analysis (CFA) results show that workplace ostracism negatively and significantly impacts work engagement. This negative impact was reduced after introducing Psychological empowerment as a mediator. The results of this study will be helpful to the HR department and policymakers of HBL, NBP, and UBL to understand workplace ostracism and its negativity and how to assist ostracized employees by empowering them psychologically.
Spectral Methods for Monitoring Transformer Equipment State of Paper Insulation
Authors:   Kazan State Power Engineering University, Russian Federation, Kozlov V.K. , Kurakina O.E. ,   Kazan State Power Engineering University, Russian Federation, Sabitov A.H. ,   Kazan State Power Engineering University, Russian Federation, Nigmatullina G. F. ,   Kazan State Power Engineering University, Russian Federation, Salyakhutdinov R. A. ,   Kazan State Power Engineering University, Russian Federation
Published: December 2022

The insulation of an oil-filled transformer is based on materials of organic origin - oil and wood pulp. The state of insulation is a key factor in the reliable operation of a power equipment, and much attention is paid to the insulation state assessment by researchers. To assess the cellulose insulation state, indicators such as the degree of polymerization and paper moisture are determined. The existing methods for determining the moisture content and the degree of polymerization of a paper insulation have disadvantages, as they require a complex process of sampling the insulation, which is a time-consuming operation. The purpose of the work is to develop new methods for determining the moisture content and the degree of polymerization of the paper insulation of a power transformer. This goal is achieved by obtaining the reflection spectra of the paper insulation samples and constructing two correlation lines to determine the degree of polymerization and humidity. The most significant result of the article is the establishment of the dependence of the reflection coefficient of the paper on the concentration of water exceeding 4% and the position of the minimum in the reflection spectrum of paper insulation on the degree of polymerization. The significance of the obtained results lies in the fact that the optical method for determining the moisture content and the degree of polymerization of paper insulation using the constructed correlation lines is highly accurate and does not require the use of additional reagents and complex calculations.
The Problem of Choosing a Steganographic Container in Conditions of Attacks against an Embedded Message
Authors:   Odessа Polytechnic National University, Ukraine, Bobok I. , Kobozieva A. ,   Odessа Polytechnic National University, Ukraine, Sokalsky S. ,   Odessа Polytechnic National University, Ukraine
Published: December 2022

Steganography is the perspective area of information security. The reliability of the stegano- graphic system, its stability is affected by the carrier – a container, which is considered in the paper as a digital image. The aim of the work is to increase the resistance of a steganographic system to attacks against an embedded message by developing a method for choosing a contain-er from a finite set of available digital images that ensures the transmitted message the minimum (close to the minimum) possible sensitivity of the generated steganographic message to disturb-ing influences under consideration with the selected steganographic algorithm. The goal was achieved using a theoretical study of perturbations of the formal parameters of the container ma-trix, as a result of steganographic transformation and active attacks, which made it possible to introduce a new formal representation for information protected from perturbing influence E, as the difference of low-rank approximations of container matrices and steganographic messages. The most important result of the work is the development of a container selection method ready for practical implementation. The efficiency of the developed method exceeds the efficiency of analogs, it remains high, regardless of the used steganographic method, which allows increasing the overall resistance of the steganographic system to attacks against the embedded message. The significance of the obtained result lies in the use of the developed method of increasing the stability of the steganographic system to attacks against the embedded message.
Data Processing Technology for the Forecasting of the Water Inflow into a Reservoir with the Use of Earth Remote Sensing and the Network of Meteorological and Hydrological Posts
Authors:   Ural Federal University, Russian Federation, Eroshenko S.A. , Matrenin P.V. ,   Ural Federal University, Russian Federation, Khalyasmaa A.I. ,   Ural Federal University, Russian Federation, Klimenko D.E. ,   Ural Federal University, Russian Federation, Sidorova A.V. ,   Novosibirsk State Technical University, Russian Federation
Published: December 2022

Management of the hydropower plants requires the economically efficient use of water resources based on the forecasts and simulation models of the hydropower plant and the reservoir. There are various data sources for the water inflow forecasting: meteorological and hydrological posts, Earth remote sensing. However, the problem arises of combining the specified heterogeneous data for aggregated processing with the use of machine learning methods. The research goal is to design an architecture of a system for collecting and processing the data from various sources to operational forecast of the water inflow and the reservoir water-level. It was achieved by analyzing and selecting the sources and methods for the use of Earth remote sensing data; observing the main principles of hydrological modeling; assessing the availability of the different data; analyzing the ways of increasing the observability of the hydrological objects by installing additional meteorological and hydrological posts; and designing a technology for the automatic data collection and processing. The most significant results are developed architecture of the data collection and processing system and the technology for aggregating heterogeneous data with the use of machine learning methods. It is aimed to reduce the error of short-term forecasting of the water inflow to the reservoir. The significance of the results lies in the fact that the proposed technology was offered and justified for a real hydropower plant; and it can improve the water resources management efficiency: increase the energy generation, minimize the sterile spills, increase the flood forecasting horizon and reduce the risk of flooding during the spring high water.
Statistical Investigation of the Surface Roughness of Ti-6Al-4V Products Built by Selective Electron Beam Melting
Authors:   Moscow Polytechnic University, Russia, Krasnova E. V. , Morgunov Yu. A. ,   Moscow Polytechnic University, Russia, Saushkin B. P. ,   Moscow Polytechnic University, Russia
Published: December 2022

The paper presents the results of a statistical study of the parameters of the microgeometry of the surface of the vertical walls of the construction objects during additive shaping via electron beam melting. An assessment was made of the influence of the construction condi-tions and the hatching mode parameters on the surface roughness. The influence of the hatching mode parameters on the roughness of the side surface, when constructing samples with vertical walls, was established. It is shown that the value of the average size of the height of the irregularities Rz increases with the intensification of the energy regime of hatching. A physical model is proposed that describes the influence of the hatching mode on the roughness of vertical walls, based on the hypothesis of a possibility of penetration of the melt micro-flow during hatching onto the outer surface of the contour. It is shown that the distribution of the surface roughness values of the vertical walls has a non-Gaussian character, the curves are, as a rule, right asymmetric (the mode is located to the left of the size grouping center), which indicates the influence of non-random factors, the number or values of which systematically change over time.
Influence of Surface Preparation on Corrosion Resistance Properties of Oxide Layers Formed on Mag-nesium Alloy МА8 by Microarc Oxidation
Authors:   Platov South-Russian State Polytechnic University, Russia, Bespalova Zh. I. , Pyaterko I. A. ,   Platov South-Russian State Polytechnic University, Russia, Dem’yan V. V. ,   Platov South-Russian State Polytechnic University, Russia
Published: December 2022

The article presents the findings on the effect of the substrate pre-impregnation in the ceri-um (III) nitrate and glycerin aqueous solutions on the corrosion-protective properties of the coatings generated on the magnesium alloy MA8 surface by microarc oxidation. The coat-ings were formed in the A-K mode from a silicate-alkaline base electrolyte solution contain-ing compounds with fluoride ions. The corrosion resistance of the magnesium alloy ensured by oxide-ceramic coatings and without them was evaluated by the electrochemical corrosion parameters: corrosion potential, corrosion current density, and polarization resistance. The study has shown that the coatings formed on the surface of the magnesium alloy MA8 provide effective anticorrosive properties of the substrate of MA8 in the solutions containing chloride ions. It was established that the preliminary impregnation of a substrate made of magnesium alloy MA8 in aqueous solutions of cerium (III) nitrate and glycerin affects the mechanism of the resulting corrosion damage.
Size Effect in Electroplating: Method of Determination and Cell for its Evaluation
Authors:   Institute of Applied Physics, Republic of Moldova, Bortsoi T.
Published: December 2022

It is shown that the response of the functional property of the precipitate to the action of dimensional factors of the electrolysis conditions equally determines the dimensional prop-erty of the electrolyte. It was established that the most universal methods for estimating size effects can be formed on the basis of the correlation of dimensionless values of a number of given and magnitude-directed values of the size factor with a number of corresponding val-ues of the sediment functional parameter. With the help of such methods, it is possible to quantify the relative coincidence or mismatch of changes in a given series of values of a size parameter with the obtained values of a series of sediment parameters, or by the proportion of coincidence of changes in a number of values of a size parameter with changes in a num-ber of values of a sediment parameter. It is also shown that the study of the dimen-sional properties of electrolytes and deposits, depending on the type of dimensional factors and their scales, can expand the possibilities of the electrolytes used, increase the controlla-bility of the formation of the functional parameter of the deposit, obtain new information about the process of the deposition of nanostructured deposits, and reveal the factors that were not previously in the focus of attention. A method of determination and a cell for the quantitative evaluation of the dimensional properties of the precipitate and the electro-lyte from internal and external dimensional factors are presented.
Formation of Holes in Semiconductor Materials by Laser Microprocessing
Authors:   Belarusian State University of Informatics and Radioelectronics, Lanin V. L. , Petukhov I. B. ,   OJSC “Planar-SO”, Belarus, Retyukhin G. E. ,   OJSC “Planar-SO”, Belarus
Published: December 2022

The process of laser formation of microholes in semiconductor substrates using an EM-4452-1 laser processing unit with a pulse repetition rate of a picosecond laser from 10 to 300 kHz at a radiation energy of up to 10 mJ was investigated. The combination of high-speed movements of the laser beam by the galvanoscanner system and precise positioning of the processed material increases the efficiency of laser microprocessing and expands the functionality of the equipment.
Comparison of Time Series Models for Predicting Online Gaming Company Revenue
Authors: AYTAÇ Utku Can , KUCUKYİLMAZ Tayfun , TARAKCIOĞLU Göneç Seçil
Published: December 2022

Online gaming industry is an area where the effects of any change can be seen in a very short time. Therefore, real-time analysis of revenues, analysis of the commercial performance of the developed content, and rapid monitoring of the revenue contributions of the improvements are essential. Therefore, financial forecasting is a crucial part of business plan which can help strategize how much and how quickly the company intend to grow. In financial forecasting of a given time series, revenue estimations for future will become important research in the industry. This research offers a detailed analysis of recent time series models and focused on both deep learning and statistical methods for time series forecasting on real-world revenue data. Results of the study are examined using one of the leading Finland based online gaming companies’ revenue data. In our experiments, we investigated various time series forecast techniques, such as SARIMA, Theta, Holt Winters, Prophet, Dense Neural Network (DNN), Convolutional Neural Network (CNN), Long Short-Term Memory (LSTM), N-Beats and Ensemble models. The experimental evaluations illustrate that deep learning models can optimize the financial forecast operations. The result of the study provides insights to managers and analysts in determining the best model to adopt.
Spor Pazarlamasında Veri Madenciliği: Twitter’da Veri Madenciliği ve Derbi Örneği
Authors: AKPINAR Habib Mehmet
Published: December 2022

Teknolojinin gelişmesi, internetin kullanımının akıllı telefonlar sayesinde yaygınlaşması sosyal medya platformlarında ortaya çıkmasında büyük rol oynamıştır. Sosyal medya günlük yaşamın iletişim açısından değerlendirildiğinde en önemli araçlarından biri haline gelmiştir. Özellikle markalar için kullanıcıların üretmiş oldukları içerikleri anlamak ve pazarlama iletişimi stratejilerini buna göre belirlemek son derece önemlidir. Araştırma kapsamında spor tüketiminin önemli paydaşlarından biri olan taraftarları anlamak adına Galatasaray – Beşiktaş derbi karşılaşması için belirlenen #GSvBJK hastaghiyle atılmış 49258 tweet incelenmiştir. Verilerin toplanmasında R programlama dili ve RStudio isimli yazılım ile academictwitte, isimli kod paketi kullanılmıştır. Hashtag (etiket) ve emoji verilerinde ise ilgili kısımlara yönelik analiz yapılmıştır. Ngram adı verilen birbirleriyle bir arada tekrar eden kelime grupları için 2’li ngram ve 3’lü ngramlara çalışmada yer verilmiştir. Araştırmanın sonuçlarına göre derbide atılan tweetlerin büyük çoğunluğunu kaçak yayın ve yasadışı bahis sitelerinin oluşturduğu sonucuna ulaşılmıştır. Ayrıca araştırma sonuçları kelime bulutu ile görselleştirilerek sunulmuştur.
Case of a Sister Mary Joseph’s Nodule in Pancreatic Adenocarcinoma: a Diagnostic challenge
Authors: Adioui Tarik , Benhamdane Ahlame , Berrag Sanaa , Tamzaourte Mouna
Published: December 2022

Background: Sister Mary Joseph Nodule (SMJN) is a rare metastatic umbilical nodule with primary tumor genital or gastrointestinal sites. Pancreas is rare primary location for umbilical metastases. Pancreatic adenocarcinoma associated with SMJN usually arise from the body and tail of the pancreas. We report a case of SMJ nodule’s as a cutaneous manifestation of metastatic pancreatic head cancer. Case Report: A 59-year-old man, presented with epigastric, back pain and weight loss. On examination, an umbilical nodule was noted. Investigations confirmed a nodule of sister Mary Joseph as a pancreatic head cancer metastasis. Discussion and Conclusion: SMJN nodule remains as a rare tumor with metastatic origin of cancer most commonly digestive. Due the poor prognosis, early detection and systematic biopsy of any nodule or umbilical mass is indispensable.
Investigating the Efficacy of Using Online Resources for Production Training in Learning Non-Native Vowel Contrasts
Authors: Aljohani Ajwaad , Alshangiti Wafaa
Published: December 2022

The current study investigates the benefits of virtual phonetic training on second language (L2) vowel production and examines whether production training improves perception. While the benefits of production instructions were investigated with instructions that were delivered by either a virtual or a face-to face teacher, a few studies investigated the benefits of online resources for second language (L2) learning with tutor audio instructions and feedback.  Fifty-five Arabic speakers (21 served as a control group) took part in 3 one-to-one training sessions and were trained on producing seven Standard Southern British English (SSBE) vowels (/ ɪ, ɛ, ʌ, ɑː, ɔː, ɒ, ʊ/) that have been found to be difficult for Arabic learners of English. Improvements were assessed by their vowel identification, category discrimination accuracy and their vowel intelligibility. The results showed some improvements in vowel intelligibility and that vowel learning paved the way for improvement in perception, relative to the control group. The results indicate that using web-based tools along with audio instructions are beneficial for L2 learners and confirmed previous findings about the relationship between improvement in speech perception and production.
Factors influencing the adoption of “One Must Do, Five Reductions” in rice production in the Mekong River Delta: A case study in Soc Trang province, Vietnam
Authors: Nguyen Thuy N.
Published: December 2022

After years of experimenting, the “One must do, five reductions” (1M5R) (in Vietnam referred to as 1P5G) is being promoted by Vietnam’s Department of Crop Production as an advanced technique in rice production. Nevertheless, a certain proportion of rice farmers in the Mekong Delta are reluctant to implement 1M5R. This study collected data from 116 rice farming households in Soc Trang province to assess factors influencing the decision to adopt the new technique. The result showed that the 1M5R model offers better economic efficiency than the traditional producing model in terms of profit, revenue/cost ratio, and profit/cost ratio. The estimated Binary Logistic model revealed that labor, production experience, and production area significantly contribute to farmers’ adoption of 1M5R. These results are empirical evidence of the potential of 1M5R, which supporting its promotion in Vietnam’s Mekong River Delta
The eﬀects of growing media on growth and seedling quality of root cutting of Cyclea barbata Miers at nursery stage
Authors: Pham Duong T. T.
Published: December 2022

Cyclea barbata Miers can be used in pharmaceutical industries and food. They are of tropical origin, and thus suitable for cultivation in many places in Vietnam. This study was conducted to evaluate the eﬀects of diﬀerent types of growing media on growth, seedling quality of root cutting of Cyclea barbata and fnancial efciency at the nursery stage. A one-factor experiment was arranged in a completely randomized design with three replicates and nine treatments which were diﬀerent mixtures of sand, rice husk ash, coco peat and vermicompost with diﬀerent ratios in volume. The results showed that root cutting of Cyclea barbata was planted on the mixed media of 25% rice husk ash: 50% coco peat: 25% vermicompost gave the highest number of roots (17.23 roots/cutting), shoot length (100.48 cm), number of leaves (14.70 leaves/cutting), fresh and dry root matter (3.71 and 0.48 g/cutting), fresh and dry shoot matter (5.45 and 1.50 g/cutting), seedling quality index (0.019) at 75 days after planting, the proft (3,665,800 VND/1000 cuttings) and a proft margin of (0.73 times).
Effect of three different organic fertilizers on growth, yield, and essential oil content of basil (Ocimum basilicum var. pilosum)
Authors: Nguyen Trang T. H.
Published: December 2022

Basil (Ocimum basilicum var. pilosum) is an herbaceous plant species exhibiting various economic and medicinal values. This study was conducted to determine the effect of three different organic fertilizers, namely cow manure, worm castings manure, and Komix organic fertilizer, on the growth, yield, and essential oil content of basil in Thu Duc City. The results showed that using worm castings manure (25 tons/ha) decreased the growth parameters including the average height of main stems and the average number of leaves and lateral branches, whereas increased significantly the plant height (41.8 cm), stem diameter (6.0 mm), number of primary branches (13.5 branches), number of leaves (16.8 leaves), chlorophyll index (41.3) and number of shoots after regeneration (20.2 shoots), compared to the control. Besides, using worm castings manure (25 tons/ha) also helped increase the average fresh weight of basil stems and leaves (93.3 g/plant), theoretical yield (24.9 tons/ha), actual yield (14.7 tons/ha), essential oil content (0.5 mL) /100 g), and yield of essential oil (1.1 L/ha). The study also confirmed that using worm castings manure (25 tons/ha) created the highest economic efficiency with total profit reaching 737,570,000 VND/ha/3 harvests while using worm castings manure at a rate of 5 tons/ha gave the highest real rate of return (3.26).
Detection of Newcastle disease virus and H5-subtype Influenza virus in swiftlet houses by Multiplex reverse transcription PCR assay
Authors: Dinh Phat X
Published: December 2022

The purpose of this study was to investigate the presence of Avian paramyxovirus 1 (APMV-1), also known as Newcastle disease virus (NDV), and Avian influenza type A, especially H5 subtype (AIV-H5) in swiftlet houses and swiftlet nest by multiplex RT-PCR (mRT-PCR). The assay used two specific primer pairs designed to detect the conserved sequence of the F gene of NDV and the HA gene of the AIV-H5, with product sizes of 282 bp and 420 bp, respectively. The mRT-PCR was established with detection limit of 25 copies/reaction for each target virus. The thermal cycle was optimized as follows: cDNA synthesis at 45ºC for 20 min, an initial denaturation at 95ºC for 5 min, followed by 35 cycles of amplification encompassing denaturation at 95ºC for 30 sec, annealing at 58ºC for 30 sec, and extension at 72ºC for 45 sec, ending by a final extension step at 72ºC for 7 min. Eighty-eight field samples including feces and swabs of the nest surface were examined and all samples were confirmed to be negative for these two viruses. The results of this study indicated that the swiftlet nests and the environment of swiftlet houses were not contaminated with NDV or AIV-H5 viruses. Moreover, the established mRT-PCR protocol had good specificity, detection limit, and can apply for routine veterinary diagnosis.
Structural characteristics, tree species diversity and distribution of medicinal plant species at Ta Kou nature reserve, Binh Thuan province
Authors: Nguyen Canh M.
Published: December 2022

This article aimed to investigate the forest structural characteristics, tree species diversity for plant communities of the tropical moist evergreen close forest and distribution of medicinal plant species at Ta Kou nature reserve, Binh Thuan province. In this research, the structural characteristics and tree species diversity were analyzed from data collected from 20 typical plots with the size of 0.1 hectares. The location of medicinal plant species is identifed by GPS through the route survey method. Research results show that IVi% index of dominant and co-dominant tree groups accounting for 26.4%. The number of trees is most concentrated in class D1.3 < 20 cm and H < 10 m. The basal area and volume are mainly concentrated in class D1.3 = 20 - 40 cm and H < 10 m. In the study area, 47 species of 27 plant families were found, in which the Dipterocarpaceae family has the most species; 28 medicinal plant species belong to 24 families, one of which is typical for the study area named “Thay Thim” tree (Olax obtuse Blume) and some other species are rare and threatened with extinction in Vietnam such as Streptocaulon juventas (Lour.) Merr., Eurycoma longifolia Jack, Stemona collinsae Craib, Drynaria bonii H. Christ.
Evaluating the diversity of native ornamental fishes in Dong Nai biosphere reserve, Dong Nai province, Vietnam
Authors: Nguyen Tam T.
Published: December 2022

This study was conducted from May 2019 to December 2020 to investigate the diversity of native ornamental fishes in Dong Nai Biosphere Reserve (DNBR). The study identifed 116 fish species belonging to 11 orders and 28 families in the water bodies of the DNBR. The analysis of compilation of the samples in the study further revealed that Cyprinidae was the most abundant family contributing 50 species followed by Perciformes and Siluriformes providing 24 species and 21 species, respectively. Out of 116 recorded species, 53 species were considered as ornamental fish, 77 species as food fish and 31 species as both ornamental and food fish. Among the ornamental fish group, many species have recorded good abundance at studied sites. Most of these fish species are high demand and sold at high prices in the domestic and international markets. The domesticated results showed that 21 ornamental fish species belong to 11 families were adapted and developed well in captivity conditions. The results also specified that eight species reach level 4 of domestication indicating truly domesticated, while the remaining 13 species belong to the first three levels of domestication, implying need to be further domesticated before being marketed. In addition, the study concluded that if managed sustainably, the collection of wild fish for the ornamental fish purpose could provide a stable income and livelihood for communities in the DNBR.
Two-step pretreatment for improving enzymatic hydrolysis of spent coffee grounds
Authors: Trinh Ly T. P.
Published: December 2022

Spent coffee ground has attracted increasing attentions since it contains many useful components such as polysaccharides, protein, lipid and bioactive compounds. The aim of this research is to enhance the enzymatic hydrolysis to release important sugars in spent coffee ground using different pretreatment methods. Spent coffee grounds were pretreated by alkali pretreatment, organosolv pretreatment and the combined process. The pretreated material was hydrolyzed by different commercial enzymes including Cellulast, Pectinex, Ultraflomax and Viscozyme. Monosaccharides, total phenolic content and antioxidant activity in the hydrolysate were measured and evaluated. The use of Viscozyme achieved the highest reducing sugar yield and showed the significant difference from other enzymes. Alkali and organosolv pretreatment demonstrated to improve the production of sugars. The alkali pretreatment followed by organosolv treatment effectively removed lignin, resulting in only 14% lignin in the pretreated sample. The maximum reducing sugar concentration reached 6120 mg/L through two-step pretreatment and subsequent enzymatic hydrolysis, corresponding to a yield of 161 mg sugar/g substrate. The spent coffee ground hydrolysate contained 2917 mg/L mannose, 1633 mg/L glucose and 957 mg/L galactose. Phenolic compounds were observed to be released during the enzymatic hydrolysis, giving a total phenolic content of 174.4 mg GAE/L and the SCG hydrolysate also showed an antioxidant capacity equivalent to 263.2 mg/L ascorbic acid after 120 h hydrolysis. This study demonstrated a scalable two-step pretreatment process to obtain important sugars including mannose, glucose, and galactose along with phenolic compounds for further industrial uses.
Evaluation of drought on agricultural land-use change: A case study of coastal districts, Ben Tre province
Authors: Le Lam
Published: December 2022

Ben Tre is a coastal province in the Mekong Delta heavily affected by negative impacts of climate change and sea level rise, such as freshwater shortage and increased salinity intrusion during the dry season. This research aimed to develop a remote sensing approach, using time series data to assess drought development for the coastal districts (Ba Tri, Binh Dai, and Thanh Phu) in Ben Tre province. The Temperature Vegetation Dryness Index (TVDI) was analyzed based on the time-series Landsat 8 OLI data, which were obtained continuously from 2009 - 2019 to evaluate drought changes over time. The drought maps of 2009 and 2019 were established and the results showed that there were four levels of drought, including non-drought, slight drought, moderate drought and severe drought. Areas with non-drought and slight drought were reported at 5.65% and 35.34% (about 6,098 ha and 38,146 ha), respectively; while about 53.14% and 5.87% of the study areas were classified as moderate and severe drought (about 57,354 ha and 6,332 ha), respectively. The assessment of fluctuations in the period 2009-2019 showed that the areas of non-drought and slight drought tended to decrease while the areas of moderate and severe drought increased. The drought was positively related to agricultural land-use change as shown by the following formula loge(Pi/(1 - Pi)) = 7.985 * TVDI - 6.746. Drought tended to decrease in the areas where the bare land was changed to lands for perennial crops, rice crops and aquaculture, while drought tended to increase in land-use types of rice and annual crops.
Assessment of surface water quality and some main rivers’ capacity of receiving wastewater in Ca Mau province, Vietnam
Authors: Le Tuan Q.
Published: December 2022

Surface water from rivers plays a significant role in socio-economic development in Ca Mau Province. It supplies freshwater for agriculture and aquaculture. Faced with the pressures of development, surface water quality in Ca Mau Province has been being at stake. The aim of this paper is to assess the water quality status and wastewater receiving capacity of the main rivers of Ca Mau Province. The monitoring results and calculated Water Quality Index (WQI) indicated that almost surface water in Ca Mau Province was heavily polluted and did not meet the irrigation purpose. Most rivers and canals in Ca Mau City were not able to receive any more contaminant loads of COD, BOD5, N-NH4+, and P-PO43-. To protect the water resource for sustainable development, consequently, it is important to propose water management solutions for the local government to regulate wastewater discharge into surface water bodies in Ca Mau Province.
Hydrolysis conditions of black bean and brown rice and application of the hydrolysate in trial production of plant-based milk
Authors: Duong Diep T. N.
Published: December 2022

Brown rice and black beans were known as good food sources. The main objective of this study was to evaluate the physicochemical and antioxidative properties of brown rice and black bean extracts treated with different enzymes such as Bialfa-T, Glucozyme 2x, Bialfa-T-Glucozyme 2x, Biase, Biomatasa-L andBiase-Biomatasa-L. These extracts were initially used to produce plant-based milks. The results showed that the combination of Bialfa-T and Glucozyme enzymes expanded the recovery yield and total phenolic content. Combined Bialfa-T and Glucozyme enzymes also resulted in the highest antioxidant capacity in both brown rice and black beans extracts. The product made from the mixture of brown rice extract and black bean extract at a ratio of 1:1 (v/v) had an acceptableorganoleptic quality
Evaluation of the production process of biodegradable drinking straws from corn kernel
Authors: Le Thanh T.
Published: December 2022

New product development is one of the most effective methods to expand the economic value of corn, which is currently a low-cost agricultural material. The present study was conducted to determine the production process of straws from corn under the laboratory scale, in which the influence of mixing formula, steaming time, screw speed, and drying temperature on hardness and expansion time of the drinking straws from corn kernels. In addition, the biodegradability of the resultant straws was also tested in the natural environment. The study determined the most suitable recipe for producing the drinking straw product, including corn flour (75%), tapioca starch (20%), rice flour (5%), with the addition of 0.5% xanthan gum and 0.2% potassium sorbate (w/w). The operating conditions of steaming time (10 min), screw speed (40 rpm), and air drying temperature (40°C) were found to be the most appropriate. For the decomposition study, the results indicated that the drinking straw product was capable of decomposing after 40 days at a temperature 30 ± 2°C. As such, it can be concluded that it is highly potential to build up the production process of the drinking straws from corn kernels that are environmentally friendly and ease of practical applications.
Starch recovery from turmeric powder (Curcuma longa) after ethanol curcumin extraction in comparison to the conventional method
Authors: Huynh T. D.
Published: December 2022

Recovery starch from organic waste significantly contributes to sustainable agricultural production. This study aimed to recover starch from the waste mimicking generated from the curcumin extraction by using ethanol. The physicochemical properties of the isolated starch such as microscopic morphology, Fourier transform infrared spectroscopy, X-ray diffraction, total starch, iodine binding capacity of starch, curcumin content determined by high-performance liquid chromatography were compared to that of starch obtained from the conventional method of extraction from the fresh rhizome. The results showed that the starch obtained from the fresh rhizome had a higher yield (21.3% vs. 8.5%) compared to that of starch isolated from the turmeric powder after extracting curcumin. The total starch analysis indicated that the former starch had a higher purity (98% vs. 77%, dw). The SEM imaging showed that both starches had irregular shapes with a thick flat and smooth surface. Although the starch isolated from the turmeric powder showed the dedicated properties of starch, the peak intensity and crystalline structure were remarkably decreased, observed under FTIR and X-ray diffraction analyses, respectively. The pasting analysis showed a clear change in starch obtained from the turmeric powder after ethanol extracting curcumin since a low peak viscosity was recorded. The HPLC curcumin quantification showed that both starches had a very low residue of curcumin (18.4 mg/100 g and 66.5 mg/100 g, dw) after isolation. The process of recovery starch after curcumin extraction from turmeric would be further improved to prevent the changes in physicochemical properties and for better yield.
Penerapan Sistem Tugas dan Evaluasi (situasi) Sebagai Media Pembelajaran Daring Jurusan Musik Gereja STAKPN Sentani
Authors: Pardomuan Gusti Nyoman
Published: December 2022

Tujuan dari penelitian ini adalah mengembangkan sebuah media pembelajaran yang dikemas dalam bentuk Sistem Tugas dan Evaluasi (SITUASI) pada mahasiswa semester III kelas A & B Jurusan Musik Gereja di STAKPN Sentani yang menjadi salah satu solusi untuk meningkatkan hasil belajar dan motivasi mahasiswa. Penelitian ini adalah penelitian pengembangan dengan menggunakan model ADDIE. Subjek dalam penelitian ini adalah ahli isi konten, ahli media pembelajaran, ahli desain pembelajaran, mahasiswa perorangan, mahasiswa kelompok kecil, dan mahasiswa dalam uji coba lapangan. Variabel yang diteliti dalam penelitian ini adalah SITUASI berbasis MOODLE dan hasil belajar mahasiswa. Data penelitian dikumpulkan dengan menggunakan instrumen wawancara, kuesioner, dan tes hasil belajar. Data hasil penelitian dianalisis secara deskriptif kualitatif, deskriptif kuantitatif, dan statistik inferensial (uji-t). Hasil penelitian menunjukkan bahwa telah berhasil dikembangkan sebuah media pembelajaran yang dikemas dalam bentuk e-learning untuk kegiatan Pembelajaran Jarak Jauh dan telah valid untuk digunakan. Hasil analisis statistik inferensial uji-t menunjukkan bahwa produk yang dikembangkan efektif untuk meningkatkan hasil belajar mahasiswa.
Teacher and Student Talk in Classroom
Authors: Ramdani Amaliah , Mursyid Andi Hidayatul Mi'raj
Published: December 2022

This research's main objectives aimed at describing the types of an effective teacher and student talk based on Moskowitz’s FLINT analysis system; and the factors influencing its use in the teaching and learning process. The researcher applied a qualitative research design. This research participants were the teacher and students of the English Education Study Program at the State University of Makassar. One teacher and two classes were taken as the subject of this research. The data were obtained from classroom observation and interviews. In the interview, 12 students were chosen randomly. The data from observation and interviews were analyzed using an interactive model of data analysis procedure based on Miles & Huberman (2013). The findings showed that not all types of an effective teacher and student talk occurred in the observation. Some utterances cannot be classified into FLINT theory, and those utterances were then classified as a new type of teacher talk: "Assalamu’alaikum warahmatullahi wabarakatuh” and "good morning" were then classified as greeting. Moreover, the expression when the teacher is checking the students' attendance was classified as attendance checking. Meanwhile, it can be inferred that the classroom atmosphere or the students' character was the factor that mainly influences the use of effective teacher talk in the class. Then, the factors that may influence the use of compelling student talk in the class were (1) a signal of chance; (2) students' prior knowledge; (3) students' self-confidence; (4) students' curiosity; and (5) the teacher.
Level Kemampuan Pemahaman Konsep Siswa Dalam Menyelesaikan Soal Matematika
Authors: Azizah Novia Rahmatul , Imamuddin M
Published: December 2022

Salah satu tujuan pembelajaran matematika adalah untuk memamahi konsep. Mempelajari matematika diperlukan pemahaman konsep sebagai dasar untuk pengembangan materi selanjutnya. Untuk mengetahui kemampuan pemahaman konsep matematika siswa, peneliti tertarik untuk melakukan pelevelan. Penelitian ini termasuk pada penelitian deskriptif kuantitatif. Sampel dalam penelitian ini adalah siswa kelas X IPA SMA N 1 Kecamatan Mungka yang berjumlah 21 siswa. instrumen yang digunakan pada penelitian ini adalah tes kemampuan pemahaman konsep siswa. tes ini dibuat dan disesuaikan dengan indikator pemahaman konsep dari dirjen Dikdasmen nomor 506/C/Kep/PP/2004.sebelum instrumen tes digunakan, terlebih dahulu dilakukan uji coba untuk mengetahui tingkat validitas, reabilitas, indeks kesukaran, dan daya beda. Setelah diketahui semua kriteria, dan dinyatakan dapat digunakan dalam mengumpulkan data. Penilaian untuk melihat kemampuan pemahaman konsep siswa dengan menggunakan rubrik pemahaman konsep dari Sri Wardani. Dan selanjutnya hasil tes disesuaikan  dengan tabel level yang ada. Adapun hasil dari penelitian ini sebagai berikut : dari 21 siswa diperoleh tiga siswa dengan kriteria kemampuan pemahaman konsep sangat baik dengan jumlah presentase 15%, tujuh siswa dengan kriteria kemampuan pemahaman konsep tinggi dengan presentase 34%, empat siswa dengan kriteria kemampuan pemahaman konsep cukup dengan presentase 21%, enam siswa dengan kriteria kemampuan pemahaman konsep rendah dengan presentase 30%.
An Analysis of Pragmatics Study in the Film of Tarung Sarung 2020 by Archie Hekagery
Authors: Uswatunnisa Uswatunnisa
Published: December 2022

Departing from the view that meaning, language, and communication cannot be separated in everyday life, the result of this research is an analysis of the pragmatics in conversation and context depicted in the film "Tarung Sarung (2020)" which comes from the South Sulawesi area. It was found that there were 14 data for pragmatics sections, each containing 3 deixis, 2 conversations containing implicatures, 1 conversation containing presupposition, 1 face wants, 3 conversations containing politeness principles, and 4 conversations which were locutionary speech acts, perlocutions, and illocutionary (IFIDs). By using a qualitative descriptive approach and using purposive sampling, it is easier for researchers to take data which is a representative of a certain data group and present it factually and systematically.
Characteristics of fuel cells under static and dynamic conditions
Authors: Szwajca Filip , Berger Andrew , Spalletta Robert , Pielecha Ireneusz
Published: December 2022

Modern internal combustion powertrains are the main source of propulsion for on-road and non-road vehicles. However, they are increasingly being replaced by electric or fuel cell-equipped alternative propulsion systems. The article presents a study of fuel cell characteristics operating under both static and dynamic conditions, with a 1.2 kW fuel cell set with a voltage converter and lead-acid batteries. In the conducted tests, the fuel cell stack's maximum efficiency reached 65%. Load tests (static and dynamic) have indicated higher fuel cell efficiencies when using hybrid operation with a DC/DC converter and battery.
PERFIL SOCIODEMOGRÁFICO DAS MORTES POR DESNUTRIÇÃO NO BRASIL ENTRE 2010 E 2020: UM ESTUDO ECOLÓGICO
Authors:   LITERACIA CIENTÍFICA EDITORA & CURSOS, Souza Diovana Raspante de Oliveira , Resende Francine Rubim de
Published: December 2022

OBJETIVO: Descrever o perfil sociodemográfico das mortes por desnutrição no Brasil entre os anos de 2010 e 2020. MATERIAIS E MÉTODOS: Trata-se de um estudo ecológico de corte transversal, de caráter descritivo, com abordagem quantitativa realizado por meio do Departamento de Informática do Sistema Único de Saúde (DATASUS), com dados de 2010 a 2020 oriundos do Sistema de Informação sobre Mortalidade (SIM), sendo selecionadas as variáveis sociodemográficas, causa do óbito e desfecho, esta última referente ao local de ocorrência. RESULTADOS E DISCUSSÃO: Foram registrados 45.632 óbitos por desnutrição, sendo o número médio de mortes por ano de 4.148 óbitos. Dos óbitos computados, 51% são do sexo masculino, 47,44% de cor/raça branca, seguido pela parda com 41,32%, sendo que do número total de casos 86,33% ocorreram com idosos. Ao analisar o nível de instrução, observa-se uma relação inversamente proporcional entre o número de óbitos por desnutrição e escolaridade dos indivíduos, dado que quanto maior o tempo de estudo menor o número de óbitos. CONCLUSÃO: Observa-se que a maioria das mortes por desnutrição aconteceu entre homens e idosos, com indivíduos divorciados e dentre aqueles com baixo nível de escolaridade.
Nutrition and addiction - are they linked in de-addictive process?
Authors: Rashmi K S , Kavitha Liegelin , Chatterjee Poulomi , Tripathy Aparna , Rai Ashwin R , Chatterjee Pratik Kumar
Published: December 2022

Background: Substance abuse has become a serious issue that is faced by the world. The effects of drug abuse can be detrimental to corporeal, psychological and societal well-being of a person. Drug misuse is actually unrestrained habit of drugs leading to inspiration of reward-system in brain Substance abuse also influences the food preferences and dietary habits of the users, therefore affecting the person’s nutrition. Instead of how frequently a person engages in the behavior, substance abuse and substance addiction are distinguished by how challenging it is for the person to manage without the behavior or quit it for a specific period of time.  Methodology: Electronic databases were used to conduct a thorough, systematic analysis of research, which was restricted to those with English/English abstracts and used words like "addiction," "nutrition," "lifestyle," "alcohol," "reward system," "recreational substances," etc., Conclusion: An effort has been made in this research article to highlight the effects of various addictive substances on different systems in human body with the role of adequate nutrition to fight back this addiction for the overall betterment of the society.
Vascular Calcification in maintenance Hemodialysis patients in Pakistan – A single center Cross-sectional study
Authors: Imtiaz Salman , Ahmed Dr. Shahzad , Tariq Dr. Sobia , Chughtai Dr. Javeria , Saeed Dr. Faiza , Memon Shoukat , Alam Dr. Ashar , Salman Beena
Published: December 2022

Background:

Cardiovascular disease is the most common cause of death in patients with CKD. The high cardiovascular risk may be due in part to excess vascular calcification. Our study aimed to determine the frequency of vascular calcification in maintenance hemodialysis patients.

Material and Method:

The study was conducted in the Department of Adult Nephrology, Indus Hospital, Karachi. This was a cross-sectional study. All patients who fulfilled the inclusion criteria were included in the study. After ethical approval and informed and written consent, a lateral abdominal x-ray was performed and reported according to the Kauppila score to reach the outcome i-e frequency of vascular calcification.

Results:

 There was a total of 104 patients, of which 56(53.8%) were males. The mean age was 45.7± 14.2, with the minimum age being 20 years and the maximum 73 years. Most of our patients belonged to the middle socioeconomic group 96 (66.3%). The most prevalent cause of ESRD was DM in our patients 24 (23.1%), and almost all patients had AVF101 (97.1%) for HD access. Abdominal aortic calcification was present in 27 (26%) patients while ECHO revealed calcification in 10 (9.6%) patients. The degree of calcification according to the Kauppila score was mild to moderate in17(16.4%) and severe in 10(906%), while 77(74%) showed no calcification. The majority of patients were using calcium carbonate and calcium supplements 73 (70.2%).

Conclusion:

 The frequency of vascular calcification in maintenance hemodialysis patients was low, it increases with the increase in age and no gender predominance was noted.
Kidney allograft interstitial fibrosis and tubular atrophy (IFTA) due to specific causes:
Authors: Mubarak Muhammed
Published: December 2022

Not applicable