bluuebunny/crossref_metadata_2025 huggingface dataset:
ОЦІНКА ОСОБЛИВОСТЕЙ ЗАСТОСУВАННЯ НАСОСНОГО ОБЛАДНАННЯ У СВЕРДЛОВИНАХ СКЛАДНОГО ПРОФІЛЮ ЗА ВЕЛИКОГО ГАЗОВМІСТУ
Authors: Джус А. П. , Касаткін С. В.
Published: November 2024

Метою роботи є створення методологічних основ оцінки особливостей застосування установок електроплунжерних насосів у свердловинах складного профілю за великого газовмісту для окремо взятого родовища. Розглянуто можливість застосування електроплунжерних насосів для свердловин з дебітом від 0,8 м3/д до 38 м3/д, яким характерна велика інтенсивність викривлення, що призводить до зношування колон насосних штанг та насосно-компресорних труб в складі штангових свердловинних насосних установок, а також експлуатації в періодичному режимі установок електровідцентрових насосів з номінальною подачею, значно більшою, ніж приплив рідини з пласта. Встановлено, що наявний у продукції свердловини вільний газ суттєво погіршує відкачувальну здатність електроплунжерного насоса та для свердловин окремо взятого родовища, які суттєво відрізняються за значеннями газового фактору і максимально відображають вплив цих параметрів, зумовлює його роботу з коефіцієнтом наповнення циліндра від 0,85 до 0,16. Ви-значено оціночні значення потенційних тисків на прийомі насоса для частки вільного газу 25 %, 40 %, 55 % і 65 % за умови його застосування на максимально можливих глибинах спуску, що дозволяє також оцінити значення потенційних вибійних тисків та, відповідно, дебітів свердловин. З врахуванням результатів оцінки видобувних можливостей свердловин родовища обґрунтовано доцільність експлуатації окремих із них при частці вільного газу 40  – 55 %, з метою видобутку 29,7 –.36,8 т/д продукції, що на 45  – 80 % більше ніж оціночний сумарний дебіт при допустимій частці вільного газу 25 %, який становить 20,5 т/д. Для розширення застосовності отриманих результатів доцільним є проведення додаткових досліджень з метою врахування впливу обводненості продукції при оцінці наповнення насоса та обґрунтуванні режимів експлуатації свердловин.
Habilidades de negociación y manejo de conflictos en líderes comunitarios del Callao, Perú, 2024
Authors: Panche Rodríguez Odoña Beatriz , Alegría Varona Gonzalo Ricardo , Graus Cortez Lupe Esther
Published: November 2024

Introducción: Para la participación ciudadana como herramienta crucial para la modernización del Estado, se requiere que la institucionalidad estatal mejore la eficiencia de la gestión pública, especialmente en el ámbito de los programas sociales. Esto incluye el diseño y ejecución de políticas públicas que respondan a una planificación y ejecución de la asistencia social que permita maximizar la satisfacción de sus beneficiarios. Metodología: Mediante enfoque cuantitativo, se analizan las variables habilidades de negociación y manejo de conflictos, realizando encuestas estructuradas con escala de Likert, muestreo censal, a cuarenta y dos participantes de un curso de capacitación sobre las variables, sin distinción de sexo, que viven en La Perla, Callao, Perú. Resultados: Los resultados muestran la correlación correspondiente, con su respectivo grado de significancia. Discusión: Se discute, mediante triangulación, los hallazgos que determinan el impacto de las habilidades de negociación en el manejo de conflictos en líderes comunitarios de Callao. Conclusiones: Se cumplen los objetivos y se valora la percepción de los líderes comunitarios peruanos y su conocimiento frente a las habilidades de negociación.
OPTIMIZATION AND CHARACTERIZATION OF SULPHATE BIOPOLYSACCHARIDE PRODUCTION FROM EDIBLE GREEN ALGAE Ulva Lactuca USING SURFACE RESPONSE METHOD
Authors: Permatasari N. U. , Arfah R.A. , Khaerunnisa M. , Zainuddin Z. , Situmorang S.V.O.
Published: November 2024

This research focuses on optimizing the production of sulfate biopolysaccharides from the edible green algae Ulva lactuca using surface response analysis. The objective was to identify the ideal conditions for extracting Ulvan, a sulfated polysaccharide from Ulvophyceae, by analyzing critical process factors-namely, temperature, HCl concentration, and heating duration. The study found the best extraction conditions at a temperature of 73°C, HCl concentration of 0.3 M, and heating duration of 4 hours, resulting in a 25.07% yield of Ulvan. The extracted Ulvan had a total sugar content of 0.1767 mg/mL and a sulfate content of 0.3143 mg/mL. Structural analysis conducted through FTIR and NMR spectroscopy confirmed the presence of typical sulfated polysaccharide signatures. Physical properties assessed using SEM, XRD, and TGA indicated that Ulvan is an amorphous material with substantial thermal stability. In biological evaluations, Ulvan demonstrated notable antioxidant properties, with an inhibition rate of 30.52% and a toxicity concentration (LC50) of 288.978 ppm. These findings highlight the potential of Ulvan in biopolymer production and suggest its applicability in developing algae-based products. The results contribute valuable insights into the biopolysaccharide extraction process, paving the way for future applications in the pharmaceutical and food industries.
Neurorehabilitation of post-stroke motor dysfunctions using spinal electrostimulation
Authors: Stolbkov Yu. K. , Gerasimenko Yu. P.
Published: November 2024

Spinal cord injuries and strokes are the main causes of complete or partial loss of movement. Advances in minimizing motor dysfunction using spinal electrical stimulation in spinal cord injuries have contributed to increasing interest in the use of this type of neuromodulation for motor disorders of other pathologies. The review presents the results of recent studies on the use of various types of spinal electrical stimulation to minimize motor dysfunctions associated with cerebral blood flow disorders, and discusses the history of the use of spinal stimulation in this area.
Yield of winter soft wheat varieties of different ecological and geographical origin and their adaptability in the conditions of the Central Nonblack Earth Region
Authors: Artyukhova O. A.
Published: November 2024

When creating new varieties, it is necessary to pay attention not only to high yields and the quality of the original parent forms, but also to be guided by knowledge about their reaction to changing growing environment conditions. The article presents the results of a comprehensive assessment of 15 varieties of different ecological and geographical origin. The methods of S.A. Eberhart and W.A. Russell, A.A. Rossielle and J. Hamblin, L.A. Zhivotkov, E.D. Nettevich were used in the analysis of adaptability indicators. The research was carried out in the northwestern part of the Ryazan region in the fields of ISA – a branch of the Federal State Budgetary Educational Institution FNAC VIM in 2019–2023, of which two years were unfavorable – the index of environmental conditions (Ij) –2,54 – –1,87, three years favorable Ij was 0,84–2,24. It was found that, on average, over 5 years of research, the highest yield potential was possessed by the varieties of winter wheat Danaya – 5,79 t/ha, Isktar – 6,36 t/ha, Nebokrat and Slavna – 5,81 t/ha and 6,09 t/ha, which is higher than the average annual indicator by experience by 11,1%, 22,1%, 11,5% and 16,9%, respectively. The group of the most plastic varieties includes: Danaya and Lavina (Russia), Nebokrat and Slavna (Ukraine), Isztar (Germany). High responsiveness to improving environmental conditions was noted in winter wheat varieties Moskovskaya 39 (Russia) – 1,22, Fantasia (Belarus) – 1,23, Saturnus and Tambor (Germany) – 1,17 and 1,41, respectively. According to the complex of adaptive properties, the Isztar (Germany) and Nebokrat (Ukraine) varieties were distinguished as genetically flexible ((Ymin + Ymax)/2 from 5,56 to 6,26), with a high level of stability (PUSS from 103,28% to 113,12%), good adaptability to environmental conditions (KA – 1,15% and 1,26%, respectively) and resistance to stress ((Ymin – Ymax) from –4,23 to –4,68). The research results can be used in practical breeding.
Influence of mineral fertilizers and liming on the dynamics of CO2 emissions, crop yield and quality of crop products of crop rotation link
Authors: Svirina V. A. , Chernogaev V. G.
Published: November 2024

In the field experiment was investigated the effect of repeated lime application on CO2 emissions from the soil, yield and quality of plant products against the background of mineral fertilizers N90P90K90, on dark gray forest heavy loamy soil. As a result of liming and improvement of the acid regime in the soil, prerequisites are created to enhance the vital activity of beneficial microorganisms in the experiment. It was revealed that an increase in biological activity (carbon dioxide emissions) against the background of the application of mineral fertilizers N90P90K90 and CaCO3 ensures high yield and product quality, contributes to favorable conditions for preserving soil fertility and to a greater extent stimulates the development of microorganisms using mineral forms of nitrate nitrogen. With the systematic use of mineral fertilizers N90P90K90 at the stage of crop rotation, an increase in the quality of cultivated crops was noted (the nutritional value of the green mass of clover; the content of crude protein, protein, gluten, starch in barley grain; the nature of grain in winter wheat). In different years of research, according to weather conditions, grain with a high content of crude gluten, protein, nature in winter wheat grain, starch in barley, ash nutrition elements in clover was obtained. The best option turned out to be using dolomite flour and (N90P90K90). All the considered quality indicators of winter wheat improved under the influence of fertilizers and lime, and the difference with the control was: protein – 0,64–1,78%; crude gluten – 1,6–4,3%; grain nature – 11–26 g/l. The highest productivity was obtained when applying mineral fertilizers and lime: barley – 3,53 t/ha, clover hay of the first year of use – 77,53 t/ha, winter wheat – 7,89 t/ha, compared with the control without the use of fertilizers.
Dynamics of the number and productivity of Hereford breeding cattle in the Novosibirsk region
Authors: Barsukova M. A.
Published: November 2024

The article presents an analysis of the state of the breeding stock of Hereford cattle in the Novosibirsk region in dynamics for 2021–2023. The Hereford breed is one of the most common breeds of beef cattle in Russia and in the world, and its productive qualities and the ability to adapt to different climatic conditions and pasture content allows it to be successfully used to produce high-quality and environmentally friendly meat. The results of zootechnical reports on bonification from breeding farms of the Novosibirsk region were analyzed, a comparison of indicators of productivity and use of herd animals, including own productivity, growth and development of young animals, reproductive qualities and longevity of cows of breeding herds, was carried out. It was found that despite the reduction in the number of breeding farms and breeding stock of Hereford cattle in the Novosibirsk region, is an improvement in both individual signs of productivity of cows and young animals, as well as in the overall class composition of the herd. Nevertheless, the available livestock seems to be insufficient in terms of meeting the needs of farms for breeding animals adapted to the climate conditions of Western Siberia and year-round outdoor maintenance. Currently, the animals produced at Sibirskaya Niva LLC most adequately meet the requirements of the market, but their number is extremely insufficient both for the formation of breeding herds of commodity farms in volumes corresponding to those necessary to fill the beef market, and for the formation of daughter breeding herds in the region.
Molecular and morphofunctional bases of development of the horse multiple congenital eye anomalies with the silver gene presence on the example of the Soviet draft breed
Authors: Borisova A. V. , Ramazanov M. V. , Teleshova E. B.
Published: November 2024

The article concretizes clinical data on the molecular and morphofunctional foundations of the development of multiple congenital eye abnormalities (MСOA) linked to the silver gene, using the example of the Soviet heavy-duty horse breed. Recommendations for owners on their maintenance and medical support and work with them are provided. The study was conducted on the basis of data from the VNIIK breeding center for the specified horse breed, genetic testing and ophthalmological examination. The focus group included 26 horses of the Soviet heavy-duty breed, examined for the presence of the silver gene. The results of the study showed that horses of the Soviet heavy-duty breed should undergo genetic testing for the presence of a silver gene in the genotype. However, the presence of MCOA linked to the silver gene is not an indication for the culling of horses due to the status of this breed as endangered, if it is necessary to select a mate for mating without genetic abnormalities so that they do not spread during uncontrolled crossing. Regular observation of an ophthalmologist and strict implementation of his recommendations are necessary to prevent the development of infectious complications and rapid progression of the disease with the onset of blindness. Horses homozygous for the silver gene should be kept in conditions that limit the possibility of injury to the eyeballs, including secondary damage to eye structures by the UV spectrum of solar radiation, for which translucent/opaque masks or sunglasses should be used. Working on homozygous horses with partial or complete loss of vision is potentially dangerous and possible only if a number of conditions are met and the owner is ready to bear legal responsibility for possible consequences.
Pathomorphological changes and immunolocalization of matrix metalloproteinases in the placenta of cows during afterbirth retention
Authors: Avdeenko V. S. , Moroz A. I. , Safronov D. I. , Finageev E. Y. , Makavchik S. P. , Moiseeva K. A.
Published: November 2024

For the first time, using histochemical and immunohistochemical methods, epithelialized defects with signs of dystrophy in the crypts of caruncles in cows with afterbirth retention were established. The number of diplocaryocytes per unit area in the placenta of a cow during normal delivery was three times higher than the number of cells in cows with afterbirth retention. In the stroma of the villi of the allantochorion of the cotyledons, an increase in the number of collagen fibers and an increase in the number of fibroblasts, which are larger than in normal childbirth, have been established. In samples obtained from cows with afterbirth retention in the stroma of defragmented maternal crypts, the distribution of MMP was established, and immunopositive cells were fixed around the vessels, with active production of MMP-1 and MMP-3. Decreases in MMP-2 and MMP-9 in placentomas were observed in the allantochorion villi of the fetal part of the placenta. Thus, MMP-2 and МMP-9 are localized in the cotyledon and can affect the timely release of allantochorion villi from the crypts of the caruncles, ensuring the separation of fetal membranes from the maternal placenta in cattle.
PENGARUH SISTEM INFORMASI AKUNTSNSI E-COMMERCE DAN PENGETAHUAN KEWIRAUSAHAAN TERHADAP MINAT BERWIRAUSAHA DENGAN MOTIVASI BERWIRAUSAHA SEBAGAI VARIABEL MODERASI
Authors: Ghunayanto Ario , Permatasari Ditya
Published: November 2024

Peneliti ini memiliki tujuan untuk mengetahui pengaruh sistem informasi akuntansi, e-commerce, dan pengetahuan kewirausahaan terhadap minat berwirausaha dan peran motivasi berwirausaha dalam memoderasi pengaruh sistem informasi akuntansi, e-commerce, dan pengetahuan kewirausahaan terhadap minat berwirausaha studi kasus mahasiswa akuntansi di Kota Malang. Penelitian ini menggunakan pendekatan kuantitatif, populasi pada penelitian ini yaitu mahasiswa akuntansi di Kota Malang tahun 2024, sampel pada penelitian ini yaitu 105 responden dengan teknik purposive sampling. Data yang digunakan pada penelitian ini yaitu data primer yang diperoleh dari penyebaran kuisioner kepada responden secara langsung. Teknik analisis data yang digunakan yaitu analisis regresi linier berganda dengan menggunakan software SPSS 26. Hasil analisis pada penelitian ini menunjukan bahwa sistem informasi akuntansi berpengaruh positif terhadap minat berwirausaha pada mahasiswa akuntansi di Kota Malang, e-commerce dan pengetahuan kewirausahaan tidak berpengaruh terhadap minat berwirausaha pada mahasiswa akuntansi di Kota Malang, motivasi berwirausaha tidak dapat memoderasi pengaruh sistem informasi akuntansi, e-commerce, dan pengetahuan kewirausahaan terhadap minat berwirausaha pada survei mahasiswa akuntansi di Kota Malang. Penelitian ini memberikan implikasi bagi mahasiswa akuntansi di Kota Malang untuk menanamkan minat dan memulai kegiatan berwirausaha dengan menerapkan sistem informasi akuntansi, e-commerce, dan pengetahuan kewirausahaan.
PENGARUH MOTIVASI BELANJA HEDONIS DAN GAYA HIDUP BERBELANJA TERHADAP PEMBELIAN IMPULSIF PADA E-COMMERCE TOKOPEDIA DI SURABAYA
Authors: Bagaskoro Ajimas Wahyu , Supriyono Supriyono
Published: November 2024

Berbagai aspek kehidupan manusia sudah diubah oleh kemajuan teknologi serta internet, termasuk cara orang berbelanja. Dengan pertumbuhannya, E-commerce sudah menjadi sebuah platform utama bagi pelanggan untuk memenuhi keperluan serta keinginan mereka. Namun, laporan tahunan serta brand index E-commerce Tokopedia pada tahun 2023 mencatat penurunan. Tujuan dari pengamatan berikut ialah untuk menganalisis pengaruh variabel motivasi belanja hedonis dan gaya hidup berbelanja terhadap pembelian impulsif pada E-commerce Tokopedia di Surabaya. Jenis penelitian ini adalah penelitian kuantitatif dengan menggunakan alat analisis software Smart PLS. Populasi dalam penelitian ini yaitu 112 orang dan teknik pengambilan sampel dalam penelitian ini menggunakan Non Probability Sampling dengan pendekatan Insidental Sampling. Pengumpulan data dilakukan dengan penyebaran kuesioner. Teknik pengujian data meliputi uji validitas dan reliabilitas, R-Square dan uji hipotesis bootstrapping. Berdasarkan hasil penelitian, dapat disimpulkan bahwa motivasi belanja hedonis dan gaya hidup berbelanja berpengaruh positif dan signifikan terhadap pembelian impulsif pada E-commerce Tokopedia di Surabaya.
PENGARUH PENGETAHUAN DAN PELATIHAN TERHADAP MINAT BERWIRAUSAHA ALUMNI BLK KUDUS DENGAN MOTIVASI SEBAGAI VARIABEL INTERVENING
Authors: Rahajeng Pradesy Ayusia , Indaryani Mamik , Supriyono Supriyono
Published: November 2024

Penelitian ini bertujuan untuk menganalisis pengaruh pengetahuan dan pelatihan terhadap minat berwirausaha dengan motivasi sebagai variabel intervening pada alumni BLK Kudus Dinas Tenaga Kerja, Perindustrian, Koperasi, Usaha Kecil dan Menengah Kabupaten Kudus. Jenis Pelatihan ini adalah penelitian kuantitatif. Pengumpulan data dengan metode kuesioner, diuji dan dianalisa dengan SEM AMOS versi 24. Responden pada penelitian ini adalah alumni pelatihan BLK Kudus Tahun 2023 dengan samepl 180 orang dari 336 populasi menggunakan metode purposive sampling. Hasil penelitian menunjukkan bahwa pertama pengetahuan berpengaruh positif dan signifikan terhadap motivasi. Kedua, pelatihan tidak berpengaruh terhadap motivasi. Ketiga pengetahuan berpengaruh positif dan signifikan terhadap minat berwirausaha. Keempat pelatihan berpengaruh positif dan signifikan terhadap minat berwirausaha. Kelima motivasi berpengaruh positif dan signifikan terhadap minat berwirausaha, selanjutnya motivasi tidak mampu menjadi mediasi antara pengetahuan terhadap minat berwirausaha serta motivasi tidak mampu menjadi mediasi antara pelatihan terhadap minat berwirausaha.
Solubilization of n-hexadecane by micellar solutions of trehalolipid - surfactants of biological origin
Authors: Nechaeva I. A. , Parfenova A. S. , Filippova A. S. , Filonov A. E.
Published: November 2024

Objectives. To isolate biosurfactants of glycolipid nature produced by oil hydrocarbon degrading bacteria and to establish their ability to solubilize hydrophobic compounds in the case of n-hexadecane.Methods. Trehalolipids were isolated from bacteria Rhodococcus erythropolis X5 (VKM Ac-2532 D) and Rhodococcus erythropolis S67 (VKM Ac-2533 D) included in the MikroBak biopreparation for the bioremediation of oil-contaminated territories. The genome of R. erythropolis X5 is deposited in the National Center for Biotechnology Information database under GenBank accession numbers CP044283 and CP044284, BioSample – SAMN12818508, BioProject – PRJNA573614, and SRA – PRJNA573614. The content of trehalolipid biosurfactants was estimated by the amount of trehalose in aqueous solutions of biosurfactants using the phenolsulfur method. The surface tension of the obtained aqueous solutions of biosurfactants was determined by the du Noüy ring method using a Kruss K6 tensiometer (Kruss, Germany). The critical concentration of micelle formation was determined by the inflection point on the curves of surface tension dependence on the concentration of the biosurfactant solution. In order to establish the solubilizing ability of biosurfactants, the residual concentration of n-hexadecane in an aqueous sample of different concentrations was determined using a gas chromatographic method of analysis.Results. At a constant surface tension of 24.2 mN/m and 25.0 mN/m for R. erythropolis X5 and R. erythropolis S67, respectively, the critical micelle concentration for both strains was 33 mg/L (3.8 ∙ 10−5 mol/L). The solubilizing effect of Rhodococcus trehalolipid micellar solutions against hydrophobic n-hexadecane was demonstrated by gas chromatographic analysis. The solubilization process was characterized using molar solubilization capacity (Sm), molar solubilization ratio (MSR), micelle–water partition coefficient (Km), and solubilization energy 0 (ΔGS ). It was shown that the solubilization process of n-hexadecane proceeds spontaneously 0 (ΔGS = −35.5 kJ/mol) and more efficiently (Sm = 4.3 mol/mol, MSR = 4.7 mol/mol) than in comparison with other biosurfactants of glycolipid nature.Conclusions. Based on the value of the molar solubilization coefficient, it can be concluded that trehalolipids of the R. erythropolis X5 strain solubilize n-hexadecane in aqueous solutions to a greater extent than compared to other biosurfactants of a glycolipid nature, but are inferior to synthetic surfactants.
Rheological properties of phosphorus-containing oligoester(meth)acrylate for processing by vacuum infusion
Authors: Tuzhikov O. O. , Donetskova L. Yu. , Solomakhin S. M. , Nalesnaya A. V. , Al-Hamzawi A. , Buravov B. A. , Borisov S. V. , Tuzhikov O. I.
Published: November 2024

Objectives. To obtain polymer composite materials (PCM) with enhanced physicomechanical properties using the vacuum assisted resin transfer molding (VaRTM) method, binders must have a viscosity of up to 500 mPa∙s. In some cases, this leads to restrictions on the use of certain materials or requires the use of temporary diluents. This is closely related to the deterioration of other required composite characteristics, such as increased flammability. Three phosphorus-containing oligoester(meth)acrylates PhOEM-1, PhOEM-2, and PhOEM-3 were synthesized with significant differences in viscosity characteristics in the series PhOEM-1 << PhOEM-2 << PhOEM-3. The polymer based on PhOEM-1 exhibits inferior physicomechanical properties despite having lower viscosity. Hence, the aim of the study was to investigate the viscosity characteristics of mixtures of methacrylate binders of the same nature but different structures and functionalities. This was done by studying the rheological properties of the original oligoester(meth)acrylates and their mixtures taken in various ratios. The method used was to optimize compositions via a simplex lattice (Scheffe’s plan), in order to obtain PCM using the VaRTM technology.Methods. The study of rheological properties of phosphorus-containing oligoester(meth)acrylates and their mixtures was conducted using the method of rotational viscometry on a Brookfield LVDV-II + Pro viscometer with a spindle 27 at different shear rates ranging from 0 to 70 s−1 and temperatures from 30 to 70°C. Rheological studies were also conducted on a Lamy Rheology GT300 PLUS (GEL TIMER) viscometer in the same range of shear rates and temperatures.Results. It was established that the objects under investigation can be characterized by viscosity values ranging from 96 to 2137 mPa∙s depending on the temperature. The nature of the viscous flow of phosphorus-containing oligoester(meth)acrylates and their mixtures is similar to that of Newtonian liquids only at certain shear rates. The effective activation energies of the viscous flow of binders and their mixtures were calculated, and the influence of temperature on the viscosity of binders was determined.Conclusions. The study identified the features and nature of the flow curves of phosphorus-containing oligoester(meth)acrylate binders of the same nature but different structures and functionalities, as well as of their mixtures. The optimal composition ranges of threecomponent mixtures of phosphorus-containing oligoester(meth)acrylates for use in the VaRTM technological process in producing polymer composite materials within the temperature range of 30 to 70°C were defined. The optimal compositions and temperature conditions for obtaining polymer composite materials using the VaRTM technology were also identified. This enables the production of polymer products with complex geometric shapes and varying sizes.
A Difficult Road: Update on the Educational-Vocational Impact of Disability in Australia
Authors: Athanasou James
Published: November 2024

This is the sixth in a series of reports from 1999 that describe the impact of disability in Australia on earning and learning. It summarises the official statistics on _Disability Ageing and Carers_ by the Australian Bureau of Statistics. Whilst almost three-quarters of those aged 15-64 years without a reported disability completed Year 12 only just over a half of those with a disability completed the highest level of secondary schooling. In the labour market, the participation rate has always been lower for persons with a disability compared to those without a disability. Even when people with disabilities are ready to work the rate of unemployment is more than double for those without a disability.
The effectiveness of sociodrama techniques in preventing moral disengagement tendencies in high school students
Authors: Rihadatul Aisy  , Prihatiningsih Riskiyana , Rahman Diniy Hidayatur
Published: November 2024

The increasing behavior of students who violate morals can reflect the increasing tendency of students' moral disengagement. Sociodrama is believed to be an effective technique in preventing moral disengagement tendencies in students. This research aims to prove the effectiveness of sociodrama techniques in preventing the tendency of moral disengagement in students. This research design uses a one group pretest-posttest design. The research sample was 25 students from class XI-2 of Kepanjen Islamic High School, obtained through purposive sampling. The instrument used to collect data is the moral disengagement scale. Data analysis was carried out using the Wilcoxon Signed-Rank Test. The results of the Wilcoxon Signed-Rank Test show that sociodrama techniques are effective in preventing the tendency of moral disengagement in students. The novelty in this research lies in the classical guidance service with sociodrama techniques which functions as a preventive service that focuses on students with a moderate level of moral disengagement. Meanwhile, previous research used different techniques and functioned as a curative service that focused on students with a high level of moral disengagement. This research concludes that sociodrama techniques are effective in preventing the tendency of moral disengagement in high school students. The implications of these findings show the importance of applying sociodrama techniques in guidance and counseling programs in schools.
Antioxidant Activity and Suppression of Intracellular Radical Generation of Streptomyces Strains and Genome Analysis of Strain ET3-23
Authors:   Pharmaceutical Sciences and Technology Program, Faculty of Pharmaceutical Sciences, Chulalongkorn University,  Bangkok 10330, Thailand, Wai Khaing Zar , Bunbamrung Nantiya ,   National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani 12120, Thailand, Pittayakhajonwut Pattama ,   National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Pathum Thani 12120, Thailand, Tedsree Nisachon ,   Faculty of Science and Arts, Burapha University, Chanthaburi Campus, Chanthaburi 22170, Thailand, Tanasupawat Somboon ,   Department of Biochemistry and Microbiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University,  Bangkok 10330, Thailand, Luechapudiporn Rataya ,   Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University,  Bangkok 10330, Thailand
Published: November 2024

Actinomycetes, predominantly found in soil, represent a remarkable source of natural products. The natural antioxidants obtained from them have been employed for human infectious diseases. In particular, Streptomyces strains serve as significant sources of natural antioxidants with demonstrated health benefits. The in vitro antioxidant activity and the inhibition of intracellular radical generation by crude extracts from various Streptomyces strains were evaluated and the genome sequence of selected strains was analyzed. Strains CT2-10, NE1-12, and ET3-23 showed 16S rRNA gene sequence similarity to Streptomyces capoamus JCM 4734T (98.94%), Streptomyces nigra 452T (99.78%), and Streptomyces morookaense LMG 20074T (99.49%), respectively. The genome analysis of strain ET3-23 had 106 contigs, with a total length of 8121874 bp and an average G+C content of 71.46%. Ethyl acetate extracts of strains CT2-10, ET3-23, and NE1-12 exhibited, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity with IC50 555.9 µg/mL, 66.5 µg/mL, and 463.3 µg/mL and showed NO scavenging activity, except for CT2-10. Strain NE1-12 significantly inhibited ROS production induced by hydrogen peroxide on macrophage cells, while strains NE1-12 and CT2-10 inhibited NO production induced by lipopolysaccharides with IC50 82.4 µg/mL and 2.3 µg/mL, respectively. These findings suggest their ability to modulate NO production which is crucial in inflammatory responses and tissue injury. The antioxidant activities of Streptomyces strains indicate their potential as valuable sources of bioactive natural products and effective antioxidant agents, warranting further investigation for therapeutic applications.
Waste Analysis and Characterization Study in a Philippine Science and Technology Research and Development Institution
Authors:   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines, Barcelo Joven , Artuz Maria Theresa ,   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines, Tansengco Myra ,   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines, Herrera David ,   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines, Chuayana Johnemma Mae ,   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines, Esguerra Reynaldo ,   Environment and Biotechnology Division, Industrial Technology Development Institute, Department of Science and Technology, Bicutan, Taguig City, Metro Manila, Philippines
Published: November 2024

This paper presents the conduct of Waste Analysis and Characterization Study (WACS) in the Industrial Technology Development Institute of the Department of Science and Technology (DOST-ITDI) in Taguig City, Philippines. The study was produced following the introduction of 2020 guidelines developed by the Japan International Cooperation Agency for the Philippines to determine waste generation and generation rate per source, as well as waste composition, per capita generation, and bulk densities of the generated wastes. This then provided fundamental data in the formulation of initial plans and programs for the proper management of solid wastes in the institution. From the gathered results, DOST-ITDI generates 91.56 kg/day of solid waste during the dry season, and 77.54 kg/day during the wet season. The generated waste is composed of residuals for disposal (35.93% and 37.75%, dry and wet season), biodegradables (27.80% and 21.46%), and recyclables (22.54% and 28.95%). Per capita generation rates of 0.21 kg/capita/day (dry season) and 0.18 kg/capita/day (wet season) were also recorded. The research and development cluster of divisions was determined as a major contributor of waste at 42.37 to 57.62 kg/day. Bulk density values varied between waste fractions, with the main residuals for disposal components being the bulkiest at 29.27 to 32.90 kg/m3. The data collected from the study provided significant information useful in efforts to initiate programs for diversion of biodegradables, recyclables, and residuals-with further potential for recycling wastes, reducing residuals for disposal through proper segregation and recovery, and determining gaps and opportunities in plans, policies, and programs to improve solid waste management of the institution.
Rotating magnetic field driven plasma engine for space propulsion
Authors:   , Sun Yufei
Published: November 2024

The development of thrusters for spacecraft has seen a tremendous growth and the number of spacecraft including small satellites and CubeSats has been increasing exponentially over the past several decades. Electric thrusters flourish where traditional chemical thrusters fail to meet requirements. The advent of electric thrusters has helped humans travel further from Earth and has the potential to be developed for interstellar flights due to their advantages such as high velocity increments, long operational lifetimes, high impulse-to-weight ratios and high impulse-to-power ratios. In this work, a Rotating Magnetic Field (RMF) driven plasma engine is developed based on a technique in a compact torus configuration – rotamak, initially proposed for controlled thermonuclear fusion. Its potential in electric propulsion is applied to design a small electrodeless space thruster. Crucial mechanisms were researched and elucidated in the rotamak, i.e. the RMF, the driven current and the Field Reversed Configuration (FRC). The driven azimuthal current was reached 2 kA with a total RMF power of 400 W and the argon plasma density was 6.0 ×1018 m3. However, the production, confinement and acceleration of plasma in a small thruster with a length of 15 cm is challenging. Substantial multifarious physical characterisations were conducted and a well-developed measurement system was designed and built. The electrical and optical properties, characterisation of the plasma plume, and performance of the thruster prototype were studied by various techniques and plasma diagnostics. With the application of the rotamak technique, a relatively high-density (over 1019 m−3) and low-temperature (about 1 eV) krypton plasma was built in the thruster and worked under a low total power of 200~400 W, with a long pulse of up to dozens of seconds. Plasma coupling efficiency up to 70% was achieved resulting in most of the ions having energy higher than 2500 eV.
Plasma-processed haematite photoanodes for photoelectrochemical water oxidation
Authors:   , Akasyah Zaini Luqman
Published: November 2024

PEC water splitting is one of the most promising methods of harvesting virtually limitless solar power. The major challenge in this field is in the water oxidation half of the water splitting reaction. Haematite photoanodes have been identified as one of the most suitable materials for PEC water oxidation due to its narrow bandgap, high stability, and elemental abundance in Earth. To date, however, there has not been any commercially produced PEC water splitting systems, as creating one proves to be quite an engineering feat. In this work, we attempt to enhance the PEC performance of haematite photoanodes by oxygen, nitrogen and argon plasmas. The as-synthesised haematite photoanodes produced a photocurrent density of 0.014 mA cm−2, which was enhanced to 0.097 mA cm−2 via oxygen plasma, and 0.64 mA cm−2 via argon plasma. This works out to be approximately a 7-fold and a staggering 40-fold enhancement respectively. The onset potentials on the haematite photoanodes were also successfully reduced by oxygen and argon plasmas to 0.79 V and 0.77 V respectively, from 0.84 V. Both photoanodes were able to produce these photocurrent densities for 48 hours without showing any signs of deterioration. The enhancements in PEC performance were achieved by the doping of oxygen vacancies into the crystal structure of the haematite photoanodes. This was demonstrated by the use of XPS and XRD techniques. It was also found that photoanodes with higher concentrations of oxygen vacancies exhibited bandgap widening, a phenomenon that can explained by the Moss-Burstein effect. The Tauc plots derived from the UV-vis spectra of the photoanodes revealed that the bandgap widened from 2.37 eV to 2.56 eV and 2.42 eV after treatment with oxygen and argon plasmas respectively. SEM micrographs were also presented to show the surface morphology of the plasma-treated photoanodes.
ВПРОВАДЖЕННЯ ОМНІКАНАЛЬНИХ ТЕХНОЛОГІЙ ДЛЯ ОПТИМІЗАЦІЇ ВЗАЄМОДІЇ З КЛІЄНТАМИ
Authors: Гноєвий Валентин , Бугайчук Тетяна , Яременко Володимир
Published: November 2024

У статті досліджено питання впровадження омніканальних технологій для оптимізації взаємодії з клієнтами. Визначено, що омніканальний маркетинг потребує гнучкості та адаптації до змін у зовнішньому середовищі, слугуючи інтегрованою частиною маркетингової системи компанії. Серед переваг цього підходу – розширення ринку, впровадження програм лояльності та підвищення репутації бренду. Проте впровадження омніканальних стратегій супроводжується ризиками, такими як фінансові втрати та втрата кваліфікованого персоналу. Ключовими елементами є офлайн точки продажу, телевізійні магазини, інтернет-торгівля та соціальні мережі. Важливість зворотного зв’язку від клієнтів підкреслює необхідність чіткої організації кол-центрів. Персоналізація пропозицій через створення особистих кабінетів також відіграє важливу роль. Успішні приклади, такі як компанія Nike, демонструють, як омніканальні технології можуть підвищити конкурентоспроможність, забезпечуючи інтеграцію комунікаційних каналів і поліпшуючи взаємодію з клієнтами.
ПОДАТКОВІ ПІЛЬГИ ДЛЯ ЕКСПОРТЕРІВ АГРОПРОДУКЦІЇ: МІЖНАРОДНИЙ ДОСВІД ТА МОЖЛИВОСТІ ДЛЯ УКРАЇНИ
Authors: Кишакевич Богдан , Котик Ярослав , Костецький Роман
Published: November 2024

У статті аналізуються різні підходи до оподаткування експорту агропродукції в країнах світу, серед яких звільнення від ПДВ, податкові пільги на дослідження та інновації, а також звільнення від корпоративного податку на прибуток. Наведені приклади з Польщі, Китаю та Канади демонструють, як ці заходи стимулюють зростання експорту агропродукції та сприяють залученню іноземних інвестицій. Автори підкреслюють, що впровадження в Україні додаткових механізмів, таких як повернення податків або субсидії на експортні витрати, можуть значно покращити конкурентні позиції українських аграріїв. Особлива увага приділена необхідності впровадження інституту авторизованого економічного оператора, що полегшить митні процедури та підвищить довіру до українських агровиробників на міжнародних ринках. Пропонуються конкретні заходи для стимулювання експорту агропродукції через податкові інструменти, які можуть бути адаптовані до українських реалій.
ЕФЕКТИВНІСТЬ МЕТОДУ EARNED VALUE MANAGEMENT У РИЗИК-ОРІЄНТОВАНОМУ УПРАВЛІННІ БІЗНЕС-ПРОЄКТАМИ З ФІКСОВАНОЮ ЦІНОЮ
Authors: Лірко Тарас
Published: November 2024

Мета дослідження полягає у практичній демонстрації ефективності результатів інтеграції методу Earn Value Management в ризик-орієнтоване управління fixed-price проєктами. У результаті дослідження був проведений аналіз статистичних даних для різних підходів управління проєктами, зокрема проєктами з фіксованою вартістю. В статті уточнено характеристики методу управління заробленою вартістю (Earned Value Management, EVM), його ефективність у ризик-орієнтованому управлінні бізнес-проєктами. Наведено практичний приклад реалізації IT-проєкту із застосуванням EVM, де аналізуються ключові індикатори ефективності (CPI, SPI), а також розглядаються сценарії можливих відхилень і ризиків. Метод EVM є ефективним інструментом для управління ризиками у fixed-price проєктах і сприяє проактивному прийняттю управлінських рішень на основі кількісних показників.
Pengaruh Kompres Hangat dengan Warm Water Bags terhadap Perubahan Suhu Tubuh pada Anak Demam di RSUD Kota Mataram
Authors: Wijayanti GA Sri Puja Warnis , Dramawan Awan , Hair Sulthia
Published: November 2024

Penelitian ini bertujuan untuk mengetahui pengaruh kompres hangat dengan warm water bags terhadap perubahan suhu tubuh pada anak demam. Desain penelitian yang digunakan adalah pre-experimental one group pre dan posttest. Populasi dalam penelitian ini adalah seluruh pasien anak yang mengalami demam di ruang IRNA III A RSUD Kota Mataram. Jumlah sampel sebanyak 30 sampel dengan purposive sampling. Hasil yang diperoleh yaitu rata-rata perubahan suhu sebesar -0,54OC. Hasil uji statistik menggunakan Paired Samples Test diperoleh nilai p value = 0,00 atau p < α=0,05. Kesimpulan dari penelitian ini yaitu ada pengaruh kompres hangat dengan warm water bags terhadap perubahan suhu tubuh pada anak demam di ruang IRNA III A RSUD Kota Mataram. Disarankan kepada unit pelayanan rumah sakit untuk dapat menyediakan fasilitas untuk pelaksanaan kompres hangat dengan warm water bags disertai SOP sehingga dapat menjadi intervensi untuk mengatasi demam.
Polyarteritis Nodosa: Sebuah Tinjauan Pustaka
Authors: Putri Luh Egitha Widyarama , Rahim Aulia Riezka
Published: November 2024

Polyarteritis nodosa (PAN) merupakan vaskulitis nekrotikans sistemik yang sebagian besar menargetkan pembuluh darah arteri berukuran sedang. Faktor risiko lingkungan yang terkait dengan polyarteritis nodosa adalah infeksi virus hepatitis B. Manifestasi klinis polyarteritis nodosa menyerang multisistemik. Diagnosis polyarteritis nodosa membutuhkan integrasi dari manifestasi klinis, temuan angiografi, dan biopsy. Terapi pada polyarteritis nodosa sangat bergantung pada keparahan penyakit. Pengobatan yang diberikan berupa kombinasi kortikosteroid dosis tinggi dan agen imunosupresif. Polyarteritis nodosa yang tidak diterapi dapat memiliki prognosis yang buruk, namun hasilnya dapat meningkat signifikan dengan melakukan pengobatan. Pendekatan tim interprofesional dapat mencapai manajemen perawatan yang baik. Pasien dengan polyarteritis nodosa harus diberikan edukasi terkait dengan proses penyakit, progresivitas penyakit, serta sangat penting disarankan untuk menjaga kepatuhan obat untuk mencegah komplikasi.
Perbedaan Konsumsi Ikan Sebelum dan Sesudah Diberikan Kampanye Gemar Makan Ikan (Gemar Ikan) pada Remaja Putri
Authors: Pragina Baiq Rani Mayani , Salam Abdul , Irianto Irianto , Abdi Lalu Khairul
Published: November 2024

Latar Belakang: Indonesia adalah negara kepulauan terbesar di dunia yang sebagian besar wilayahnya berupa perairan. Melimpahnya kekayaan laut tersebut nyatanya belum dimanfaatkan secara optimal. Hal itu disebabkan oleh berbagai faktor diantaranya masih rendahnya konsumsi ikan masyarakat. Berdasarkan data BPS tahun 2017, Kabupaten Lombok Utara merupakan Kabupaten yang memiliki tingkat konsumsi ikan rendah, salah satu desa yang tingkat konsumsi ikannya rendah adalah Jambianom Tanjung. Dengan adanya permasalahan ini maka perlu adanya upaya yang dilakukan salah satu upaya tersebut adalah dengan melakukan kampanye gemar makan ikan untuk mengetahui perbedaan frekuensi konsumsi ikan remaja putri di kampung nelayan Jambianom Tanjung. Gemarikan adalah upaya yang dilakukan untuk memotivasi masyarakat agar mengkonsumsi ikan secara teratur dalam jumlah yang baik bagi kesehatan agar terbentuk manusia yang sehat, cerdas dan kuat.
Tujuan: Untuk mengetahui perbedaan konsumsi ikan sebelum dan sesudah diberikan kampanye gemar makan ikan (GEMARIKAN) pada remaja putri di kampung nelayan jambianom Tanjung Lombok Utara
Metode: Metode dalam penelitian ini yaitu pra-exsperimen dengan rancangan one group pretest and posttest design. Penelitian ini dilaksanakan pada bulan Maret 2022. Populasi penelitian ini adalah remaja putri yang jarang mengkonsumsi ikan di kampung nelayan Jambianom Tanjung yang memenuhi kriteria inklusi dan eksklusi. Cara pengambilan sampel menggunakan metode tehnik non probability. Besar sampel dalam penelitian ini sebanyak 20 orang yang termasuk dalam sampel jenuh. Analisis data menggunakan uji statistic berupa uji Wilcoxon.
Hasil : Hasil penelitian pada variabel perbedaan konsumsi ikan, menunjukkan kampanye gemar makan ikan dengan media berupa E-Book Resep terbukti efektif hal ini ditandai dengan adanya perbedaan konsumsi ikan pada remaja putri dari yang semula <1x seminggu menjadi 3-5x seminggu dengan peningkatan point konsumsi/ peningkatan rata-rata asupan sebesar 13.8 point (dari 8.2±2,4 menjadi 22.0±4.7).
Simpulan: Pada variabel tingkat konsumsi ikan, kampanye gemar makan ikan dengan media berupa E-Book Resep terbukti efektif hal ini ditandai dengan adanya perbedaan frekuensi konsumsi ikan pada remaja putri dari yang semula <1x seminggu menjadi 3-5x seminggu dengan peningkatan point konsumsi/ peningkatan rata-rata asupan sebesar 13.8 point (dari 8.2±2,4 menjadi 22.0±4.7).
Kata Kunci : Kampanye Gemarikan, Konsumsi Ikan, Remaja
Factors Affecting Customer to Use E-Wallet With Brand Image As Moderating Variable An Evidence of E-Wallet Brand LinkAja Users
Authors: Irawan Mudi
Published: November 2024

Non-cash transaction become popular in Indonesia during Covid 19 because of health and safety reason.  According to internal report, LinkAja is succeeded to maintain the good level of awareness (83%) from year on year. However,  LinkAja`s  brand performance is experiencing a significant drop in consideration (35%) and actual usage (24%). Thus, the aim of this study is to investigate factors affecting LinkAja customer to use e-Wallet with Brand Image as moderating variables. Within Quantitative Method and survey, the author collected sample from 113 LinkAja e-Wallet Customers in Jabodetabek during March 2022. The study found that Perceived Usefulness and Perceived Ease of Use have a significant effect on Intention to Use, and Intention to Use e-Wallet has a significant effect on Actual Usage of e-Wallet. In the contrast, Brand Image has no moderating effect between Intention to Use e-Wallet on Actual Usage of e-Wallet. This study provides several theoretical and practical guidelines for Finance Technology and Brand Management in Indonesia and other country. Author recommended LinkAja must focus their strength on product services and experience and marketing effort on branding.  There are limitation of the study, which are cross-sectional time horizon, the sample was limited to 113 respondents, and the result was limited to Jakarta Area only. Authors recommended a future study to continue investigating e-Wallet phenomenon in other area with a broader time.