bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital phenotyping as a new method of screening for mental disorders
Authors: Kasyanov E. D. , Kovaleva Ya. V. , Mazo G. E.
Published: December 2022

The introduction of information technologies is inextricably linked with improving the quality and accessibility of medical care, as well as reducing the cost of medical services. Digital phenotyping is one of the clinical tools in the field of information technology that allows you to evaluate a person’s phenotype using various personal information devices, such as a smartphone, tablet, smartwatch, various sensors and other computer tools. The advantage of digital phenotyping is the ability to receive information about the patient’s condition in real time, without inpatient and outpatient monitoring and even without the active participation of the patient himself. This fact significantly expands the possibilities of screening and diagnosis of mental disorders, and also helps to track the risks of relapses and take timely measures to prevent an exacerbation of the disease. Information technologies have great prospects for use for scientific purposes — they provide an opportunity to conduct research online that does not require visiting research centers, while at the same time reducing the time and costs of ongoing clinical trials. However, the use of digital phenotyping for scientific and clinical purposes has a number of limitations. For further improvement of digital phenotyping in order to screen psychopathology and subsequent assessment of the condition of patients, it is necessary to develop new psychometric tools used in electronic form and devoid of the shortcomings of questionnaires that are currently being used. This critical review provides data on the current opportunities and problems of digital phenotyping, as well as the prospects for its development.
The resolution of the Expert Council on the Diagnosis, Treatment, and Prevention of Symptoms of Depression in Outpatients with New Coronavirus Infection
Authors: Drapkina O. M. , Grigorova O. V. , Dzhioeva O. N. , Kostyuk G. P. , Neznanov N. G. , Samushiya M. A. , Chulanov V. P.
Published: December 2022

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Features of the relationship between emotional burnout and experiencing psychological stress with socio-psychological factors, anxiety-depressive and asthenic manifestations in medical workers during the COVID-19 pandemic
Authors: Antokhina R. I. , Vasilyeva A. V. , Antokhin E. Y. , Chutko L. S. , Stepanova N. V.
Published: December 2022

The purpose of the study: to study the relationship between emotional burnout and the experience of psychological stress with socio-psychological factors, anxiety-depressive and asthenic manifestations in medical workers during the pandemic of a new coronavirus infection.

   227 medical workers were studied using a socio-psychological questionnaire, the Questionnaire of emotional burnout by K. Maslach, the A. Beck Depression Scale, the A. Beck Anxiety Scale, the Visual Analogue Fatigue Scale, the PSM-25 Psychological Stress Scale. The results of the study reveal conflicting attitudes of medical staff towards COVID-19. Psychological distress was revealed in more than a third of those studied in the form of a decrease in emotional tone, increased mental exhaustion, a decrease in interest and positive feelings for others, a feeling of «satiation» with work, dissatisfaction with life in general, and emotional withdrawal. Nearly a quarter of healthcare workers report signs of depression. 30% of respondents experience a fairly high level of fatigue. Doctors are the most emotionally exhausted of all the examined specialists. Doctors and medical psychologists have more pronounced depressive manifestations, depreciation of interpersonal relationships than junior staff. A more pronounced reduction in personal achievements was found in women than in men, and in men, somatic manifestations of depression and fatigue were more pronounced. A greater subjective saturation of experiences for medical workers during a pandemic is caused by the fact that they suffered COVID-19 in their relatives than in themselves.   Conclusions. There is a certain similarity in the emotional response to stressful situations during the COVID-19 pandemic among doctors and clinical psychologists, in contrast to nurses and orderlies. A COVID-19 infection in loved ones is stressful for healthcare professionals. Gender is associated in different ways with manifestations of psychological stress in medical professionals with a predominance of astheno-depressive manifestations in men and a decrease in confidence in professional competence in women.
Microstructured drug-delivery systems as solid dispersions using peg 6000 and polysorbate 80 containing hydrochlorothiazide: development, synthesis, and physicochemical and morphological characterization
Authors: Costa Vargas Redondo Danielle , Caruso Leite Enzo , Reis José da Silva Adriano , Batista da Silva Bruno , Guimarães Marcelo
Published: December 2022

Bioavailability indicates the speed of dissolution and absorption of the drug by its active site, characterization of the potential pharmacological effect, dosage of a medication, and the effectiveness of treatment. Microstructured systems make it possible to increase the efficiency of drug release and absorption processes that have low solubility in physiological media and are extremely important in the area of ​​drug development and new pharmaceutical forms. The drug containing hydrochlorothiazide, distributed by RENAME and widely used for the treatment of arterial hypertension is classified as poorly permeable and poorly soluble, thus having low absorption and bioavailability, which requires administration of high doses to generate side effects. and lack of treatment adherence. The application of a microstructured drug-delivery system in the form of a solid dispersion containing hydrochlorothiazide, a lipophilic drug, dispersed in a solid matrix found by the hydrophilic carriers PEG 6000 (polyethylene glycol) and polysorbate80, given the increased solubility, dissolution profile and consequently the bioavailability of the drug. The system was extended physically-chemically and morphologically utilizing testicles such as scanning electron microscopy (SEM), in addition to thermogravimetry (TGA), differential scanning calorimetry (DSC), and infrared absorption spectroscopy, with satisfactory results in that region. formation of an efficient and innovative drug delivery system.
Curar la verdad, curar la mentira: dos estrategias de content curation contra la desinformaciÃ³n
Authors: Guallar Javier , LÃ³pez-Borrull Alexandre
Published: December 2022

Se plantean dos posibles estrategias ante la desinformaciÃ³n mediante el uso de curaciÃ³n de contenidos, que hemos denominado curar la verdad y curar la mentira. La primera es la concepciÃ³n tradicional de la curaciÃ³n de contenido, que busca optimizar el contenido de valor existente. La segunda es el proceso de curaciÃ³n vinculado al apoyo o soporte a las verificaciones de bulos, rumores y falsedades. Se ejemplifican las dos estrategias mediante cuatro casos de publicaciones de curaciÃ³n en Twitter. Se discuten algunas implicaciones como la identificaciÃ³n y acceso a las fuentes de los bulos o el coste de las estrategias.
Chemical and Physicochemical Contents and Bioactivity of Black Garlic
Authors: ÇORBACI Cengiz
Published: December 2022

Black garlic is a garlic product that has been in great demand recently because it has a fruit-like taste and is easy to eat. In this article, it is aimed to obtain black garlic samples using fresh Taşköprü (Kastamonu) garlic and to determine the chemical, physicochemical and biological properties of these samples. Compared to fresh garlic, black garlic samples had significantly increased browning intensity, total acidity, reducing sugar content, total protein, crude oil, ash, and crude fiber in contrast to moisture content and pH value. The total flavonoid and phenolic acid contents of the samples varied based on the aging period and the extract used, but significant increases in the scavenging activities of the samples were obtained with the aging period. No increase in the antimicrobial capacity of the samples was observed. In summary, the biological, chemical, and physicochemical properties of garlic changed during the aging period, with a particularly marked increase in antioxidant capacity.
Saçtırma Yöntemi ile Üretilen Işığa Duyarlı Germanyum Katkılı Tungsten Oksit Filmin Elektriksel Karakterizasyonu
Authors: KURT Mustafa Şükrü
Published: December 2022

Magnetron saçtırma yöntemi kullanılarak Al kontaklı p-tipi Si altlık üzerine %3.1 Ge katkılı WOx katmanı büyütülerek p-n tipi Al/Si/WOx(%3.1Ge) eklemi elde edilmiştir. SEM ve EDS analizi sonuçları yüzeyin pürüzsüz ve homojen bir yapıya sahip olduğunu ve sırasıyla %93.7 W, 3.1% Ge ve 3.3% O oranlarından oluştuğunu göstermektedir. Elektriksel özelliklerin incelenebilmesi için üretilen aktif tabaka üzerine Ag nokta kontaklar atılarak sonuçta Al/Si/WOx(%3.1Ge)/Ag yapısı elde edilmiştir. Üretilen heteroeklemin karanlık ve değişik ışık şiddetleri altında ±4V potansiyel aralığında I-V ölçümleri yapılarak diyot parametreleri (seri direnç, engel yüksekliği, diyot idealite faktörü, ters doyum akımı) incelenmiştir. Diyot idealite faktörünün ve seri direncin sırasıyla 3.7-5.68 ve 0-20Ω arasında, engel yüksekliğinin ise 0.12-0.18 eV arasında değerler aldığı ve ters doyma akımının ışık şiddetine bağlı değişim gösterdiği saptanmıştır. Heteroeklemi'nin tipik fotodiyot davranışı gösterdiği ve 60mW/cm2 ışık şiddeti altında maksimum doldurma faktörü değerinin 0.2660 olduğu belirlendi.
Sarp-Giresun Otoyol Çevresindeki Yapraklı Karayosunlarında Ağır Metal Analizleri
Authors: KOZ Bahadır
Published: December 2022

Ağır metalleri biriktirme yeteneklerinden dolayı karayosunları, özellikle havadaki ağır metal kirliliğini takip edebilmek için oldukça uygundur. Türkiye'nin Doğu Karadeniz bölgesindeki(Sarp-Giresun) karayosunları ve toprakları ağır metal analizi, ICP-MS (Endüktif Eşleştirilmiş Plazma – Kütle Spektrometresi) spektrometri yöntemi kullanılarak belirlendi. Karayosunlarının nitel analizi neticesinde, numunelerin V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb içerdiği gösterildi. Şehir merkezlerinden alınan karayosunu örneklerinde Pb, Zn, Cu, Ni, Co, Fe, Mn, Cr ve V ortalama konsantrasyon değerleri 23,26, 101,15, 42,26, 55,45, 8,21, 5413,12, 333,58, 18,19 ve 27,00 olarak belirlenirken, şehirler arasından alınan karayosunu örneklerinde ortalama konsantrasyon değerleri sırasıyla 17,57, 96,79, 42,38, 52,76, 6,23, 4561,71, 318,00, 17,65 ve 26,52 mg/kg olarak bulundu. Genel olarak karayosunlarında vanadyum, krom, mangan, demir, kobalt, nikel, bakır, çinko ve kurşun konsantrasyonlarının 2006-2017 yılları arasında azaldığı görüldü. Şehir merkezlerinden alınan toprak örneklerinde, Pb, Zn, Cu, Ni, Co, Fe, Mn, Cr ve V ortalama konsantrasyon değerleri 30,53, 166,19, 87,62, 183,12, 20,04, 15334,61, 730,63, 28,43 ve 50,83 mg/kg, merkez aralarından alınan toprak örneklerinde ortalama konsantrasyon değerleri sırasıyla şöyledir: 25,61, 286,21, 79,07, 123,89, 22,35, 14801,74, 461,79, 23,62 ve 44,57. Türkiye'de Sarp-Giresun Karayolu'ndaki karayosunlarında ki ağır metal konsantrasyonların da azalma olmasına rağmen, Dünya ile kıyaslandığında karayosunlarındaki ağır metal konsantrasyonları hala yüksek olduğu görülmektedir.
Su Numunelerinde Spektrofotometrik Gadolinyum Tayini
Authors: BAHADIR Zekeriyya
Published: December 2022

Bu çalışmada, Gd3+ iyonlarının tayini için, katyonik yüzey aktif madde olan heksadesiltrimetilamonyum bromür (HDAB) ve ksilen turuncusu indikatörünün kullanılabilirliği incelenmiştir. Geliştirilen metot için yüksek pH değerlerinde Gd3+ içeren sulu çözeltiye ksilen turuncusu ve HDAB ilave edilerek oluşan kompleksin absorbans değerleri spektrofotometre cihazı ile 250-750 nm aralığında okunmuştur. 580 nm de ksilen turuncusu-Gd3+ kompleksi için elde edilen absorbans değerlerinin, ortama HDAB ilavesinden sonra 624 nm’ye kaydığı gözlemlenmiştir. Optimize şartlarda geliştirilen metodun, gadolinyum için tayin sınırı 120 µg L-1, bağıl standart sapma %1,1 ve kalibrasyon aralığı ise 150-800 µg L-1 olarak bulunmuştur. Metodun doğruluğu ise gerçek su numunelerine ekleme/geri kazanım testleriyle belirlenmiştir. %84-96 geri kazanım değerleriyle, geliştirilen metodun içme, dere ve hastane atık suyu numunelerinde gadolinyum tayini için uygulanabileceği görülmüştür.
Підготовка майбутніх вихователів закладів дошкільної освіти до професійної діяльності в умовах інклюзивного освітнього середовища
Authors: Bondar Tamara , Dobosh Olena , Aleksandrovich Maria
Published: December 2022

Вступ. У статті запропоновано теоретичне обґрунтування проблеми підготовки майбутніх педагогів до професійної діяльності в умовах інклюзивного освітнього середовища. Схарактеризовано сучасні підходи науковців до підготовки фахівців закладів дошкільної освіти (ЗДО).

Мета дослідження – вивчити й описати особливості підготовки майбутніх вихователів ЗДО до професійної діяльності в умовах інклюзивного освітнього середовища, окреслити ефективні шляхи такої якісної підготовки.

Для досягнення мети використано теоретичні методи, що вможливили аналіз й узагальнення наукової психолого-педагогічної літератури, законодавчої бази в галузі підготовки майбутніх вихователів до професійної діяльності, окреслення вимог до створення інклюзивного освітнього середовища в закладах дошкільної освіти в Україні. Опрацьовано психолого-педагогічну літературу й нормативно-правову базу професійної підготовки магістрів – майбутніх вихователів ЗДО до роботи в інклюзивному освітньому середовищі.

Результати. Схарактеризовано складники підготовки фахівців до роботи в умовах інклюзивного освітнього середовища: оволодіння фаховими компетентностями, зокрема специфічними; створення й активне використання в роботі з дітьми інклюзивного розвивального середовища; виконання нестандартних професійних завдань; готовність до роботи в умовах інклюзії. Професійна педагогічна діяльність майбутніх вихователів ЗДО в умовах інклюзивного освітнього середовища має певні особливості, що аргументує доцільність включення до освітньої програми «Дошкільна освіта» навчальної дисципліни «Інклюзія в закладах освіти».

Висновки. Унаслідок наукового пошуку, обґрунтовано особливості підготовки майбутніх педагогів до професійної діяльності в умовах інклюзивного освітнього середовища: толерантне ставлення всіх учасників освітнього процесу один до одного як ключовий духовно-моральний принцип суспільства; міждисциплінарний зв’язок навчального матеріалу; максимальне моделювання майбутньої педагогічної діяльності в інклюзивному освітньому середовищі; удосконалення професійної компетентності майбутнього вихователя ЗДО. Підготовка майбутніх фахівців дошкільної освіти до професійної діяльності в умовах інклюзивного освітнього середовища є важливим складником освітнього процесу в закладах вищої освіти, що передбачає цілеспрямовану систематичну діяльність викладачів із формування в здобувачів вищої освіти спеціальних знань, умінь і рефлексії в процесі вивчення дисциплін, самоосвіту та самовиховання.
ANALYSIS OF ELECTROMAGNETIC TRANSITIONAL PROCESSES IN THE DISTRIBUTION NETWORK OF 10 KV INDUSTRIAL ENTERPRISE.
Authors:   Lutsk National Technical University, V. DAVYDENKO , L. DAVYDENKO ,   Lutsk National Technical University
Published: December 2022

The article is devoted to the issue of short-circuit analysis in the high-voltage network of the power supply system of an industrial enterprise. A short-circuit analysis is based on the methodology recommended by the IEC 60909 International Standard. The method of equivalent voltage source at a shortcircuit point was used to calculate a short-circuit current. The necessity to analyze short-circuit currents at all levels of the power supply system was used as justification of the feasibility of automation of the calculation process. Module "Shortcircuit analysis" of the ETAP software was used as an analysis tool. The nominal parameters of the elements of the power supply system of the industrial enterprise and its topological structure are the initial data for the calculation. A single-line scheme of a 10 kV distribution network of power supply system is designed in ETAP program for implementation of the calculation process. The calculation of the value of the initial and maximum current for symmetric (three-phase) and asymmetrical ("phase-phase" and "phase-land") short circuits at the specified points of the electrical network, as well as the detection of inconsistency of characteristics installed equipment to short-circuit currents and displaying inadequate places are the result of the module "Short-circuit analysis" of the ETAP program. The results of the analysis of short circuit in the investigated distribution network of the 10 kV industrial enterprise did not find inconsistencies of the equipment characteristics of the requirements for the stability of short-circuit currents.
Research of energy efficiency levels of coal mines.
Authors:   Lutsk National Technical University, V. VOLYNETS, , N. KOMENDA ,   Lutsk National Technical University, M. ROMANIUK ,   Lutsk National Technical University
Published: December 2022

The purpose of the article is the formation of the principles of determining the best practice of energy consumption efficiency among coal mines, which will take into account the initial conditions of their operation. The study is devoted to the development of the issue of organization of assessment of energy efficiency levels of coal mines. One of the main components of increasing the level of energy efficiency assessment of coal mines is the implementation of actions regarding the use and implementation of adequate assessment of the level of their energy use and the state of energy conservation. For this, it is necessary to apply such an evaluation mechanism that would allow evaluation and analysis of indicators that have an unequal impact on the efficiency of energy use. It is relevant in this direction to define universal rules for conducting assessment activities, which cover all key areas of monitoring the level of energy efficiency using the ranking of objects. The result of the ranking is a certain number of ratings, which are used to assess the level of energy efficiency. Therefore, for research purposes, a procedure for evaluating the energy efficiency of coal mines is proposed, which is based on a multivariate comparison with the application of ranking according to the Condorcet’s rule. This procedure involves taking into account the technological process and operating conditions of the coal mine. The ranks of coal mines were determined according to their energy efficiency. Specific electricity consumption, coal output and production were used as evaluation criteria. It is shown that the ranking procedure according to the Condorcet’s rule makes it possible to determine the best and worst coal mines in terms of energy efficiency. The use of the proposed procedure ensures the reliability of management actions aimed at increasing the level of energy efficiency of the energy consumption system of coal mines.
Overview of calculation verification methods of current transformers which work in relay protection circuits
Authors:   Lutsk National Technical University, A. HADAI
Published: December 2022

Systematized existing methods of calculation verification of current transformers that work in the circuits of modern relay protection devices. The requirements of the Ukrainian rules for the arrangement of electrical installations differ from the requirements of the standard of the International Electrotechnical Commission IES 61869-2. The difference concerns the absence of contact vibration and not exceeding the maximum allowable current error of 50% in the case of an internal short circuit is a separate case of the requirements for electromechanical protections and these requirements cannot be used for microprocessor protection devices. For any relay protection device, there is no concept of the permissible value of "voltages at the current inputs". The voltage at the terminals of the secondary winding and the voltage at the "input of the relay protection device" are two completely different voltages. There are no methods for calculating errors in the case of switching on protection based on the sum of the currents. Companies producing microprocessor relay protection devices specify in their instructions individual requirements for current transformers for each individual device. Compliance with these requirements guarantees the correct operation of the relay protection even for large values of the time constant of the primary network. Leading manufacturers of microprocessor relay protection devices develop and recommend software tools for checking the correct selection of current transformers. But they are not freely available. To increase the accuracy of the calculation of the limit multiplicity, it is advisable to use complex supports of the secondary winding and load of current transformers. Depending on the initial data and conditions, the permissible load resistance can be calculated using four methods. The question of whether the allowable load of a current transformer can exceed its nominal load requires further research. The scientific novelty is consists in the systematization of existing methods of calculation verification of current transformers that work in the circles of modern relay protection devices. The practical significance of the work is that checking current transformers that are connected to microprocessor relay protection devices do not need to check the maximum permissible current error of 50%; to check the correct operation of microprocessor relay protection devices, it is advisable to use the instructions for the requirements for current transformers of device manufacturers; for a more accurate calculation of the limit multiplicity, it is advisable to use complex supports of the secondary winding and load of current transformers.
Hybrid photovoltaic system with storage battery for a local object with setting the value of power consumption from the grid.
Authors:   State Institution of Higher Education «Kiev National University of Technologies and Design», O. SHAVOLKIN , YE. STANOVSKYI ,   State Institution of Higher Education «Kiev National University of Technologies and Design»
Published: December 2022

The issues of increasing the efficiency of a hybrid photovoltaic system with a storage battery used to meet the own needs of a local object are considered. This is achieved in the case of a setting according to the forecast of power consumption from the grid, which ensures the formation of the necessary graph of the degree of charge of the battery. A technique for determining the parameters is substantiated when achieving the maximum reduction in the cost of electricity consumed from the grid for the accepted load schedule for the average monthly generation of a photovoltaic battery in summer. Implementation scenarios are proposed in accordance with the accepted billing of payment for electricity. The possibility of leveling the graph of power consumed from the network and reducing consumption during peak hours is shown. The invariance of control is confirmed under the conditions of load changes over time within a certain energy value at intervals in the daytime and in the evening. The possibilities of implementing the proposed control scenarios are confirmed by modeling energy processes in the daily cycle. At the same time, archival data on the generation of a photovoltaic battery from open web resources were used. The solutions obtained are the basis for the design of software control complexes for photovoltaic systems with batteries with improved energy efficiency.
DEVELOPMENT OF INFORMATION TOOLS AND ALGORITHMS FOR CORRECTING THE MODEL OF POWER SUPPLY OF INDUSTRIAL AND CIVIL OBJECTS
Authors:   Lutsk National Technical University, D. SOBCHUK , L. DOBROVOLSKA ,   Lutsk National Technical University
Published: December 2022

The purpose of the work is the development of algorithms and information tools to increase the reliability of istribution electric networks and improve the quality of electricity supply of industrial and civil objects due to decentralized Electricity generation. Today, for the energy security of Ukraine, the energy sector is moving from a purely centralized model of electricity supply to consumers, the basis of which are powerful TPPs and nuclear power plants, to a combined one, when part of the electricity is produced by decentralized generation in RES sources of electricity. By distributed generation (RG) we understand sources of electric energy connected directly to the distribution network or connected to such a network from the side of electricity consumers. The wide spread of distributed generation is primarily associated with the appearance of highly efficient gas turbine and steam-gas plants and the development of renewable sources of electricity. Among them, wind power plants (SPP) and direct conversion solar power plants (SPP) have become the most widespread. The introduction of RG in electrical networks, especially built on the basis of renewable energy sources (RES), in addition to reducing the ecological burden on the environment and solving many problems associated with waste emissions during the production of electricity, will allow, firstly, to significantly increase the efficiency of the use of primary resources and , in the future, to reduce the cost of electricity; secondly, it will unload both the system-forming and trunk and distribution electric networks. However, this process has both positive and negative consequences for the functioning of RES. The integration of RES into the electric power system is complicated by the fact that the existing RES were designed and operated with a focus on centralized power supply. The growth of the share of RES in the total balance of electricity generates new problems and tasks that are not typical for the past period. They are connected, first of all, with the instability of RES generation due to their natural dependence on the influence of the environment.
HUBUNGAN ANTARA DUKUNGAN KELUARGA DENGAN RESILIENSI SISWA PADA SAAT PANDEM
Authors: Rasmin Maryam Zaitun , Asni Asni
Published: December 2022

Berbagai permasalahan muncul akibat pandemi covid-19, tidak hanya pada komponen kesehatan, melainkan komponen kehidupan yang lain seperti keluarga dan pendidikan juga merasakan pengaruhnya. Perubahan metode pembelajaran yang terjadi secara mendadak, menyebabkan siswa mengalami kesulitan diantaranya akses internet dan sarana yang tidak memadai, sulitnya memahami pembelajaran, serta masalah pada aspek psikologis seperti merasakan cemas, stress hingga depresi. Disisi lain, keluarga juga tak luput dari permasalahan seperti, pemutusan hubungan kerja, finansial keluarga, dan termasuk kehilangan keluarga akibat terinfeksi virus covid-19, sehingga menyebabkan keluarga menjadi tidak harmonis dan tidak dapat menjalankan fungsinya dengan baik. Fokus dan tujuan dari penelitian untuk mengetahui adakah hubungan yang positif antara dukungan keluarga dengan resiliensi siswa pada saat pandemi. Penelitian dilakukan pada siswa SMAIT Buahati Jakarta kelas 10 dan kelas 11. Metode yang dilgunakan dalam penelitian ini adalah kuantitatif korelasional dengan menggunakan uji korelasi produk momen sebagai uji hipotesis. Berdasarkan dari data yang diperoleh, hasil penelitian ini menunjukkan bahwa terdapat hubungan positif yang signifikan antara dukungan keluarga dengan resiliensi siswa. Hasil perhitungan menunjukkan rtabel 0,540 > 0,05 dengan derajat hubungan sedang atau cukup, dapat dimaknai bahwa semakin tinggi dukungan keluarga yang dimiliki maka semakin tinggi pula resiliensi yang individu miliki, dan begitu sebaliknya
Design of Experiment to Predict the Effects of Graphene Nanoplatelets Addition to Diesel Engine Performance
Authors: Daud Sarbani , Hamidi Mohd Adnin , Mamat Rizalman
Published: December 2022

To minimise diesel exhaust emissions, a few methods are commonly used. Engine modifications, combustion optimisation, and exhaust system treatment components are among them. Fuel additives, such as zinc oxide, titanium oxide, aluminium oxide, and cerium oxide, are amongst the most effective methods to increase performance and reduce emissions. Even while positive performance and emission reduction outcomes have been demonstrated, there are worries concerning health toxicity effects. Carbon nanoparticles have been accepted as a fuel additive since they pose little risk to human health. A few studies have been undertaken to investigate the consequences of employing graphene nanoplatelets as fuel additives, thanks to advancements in graphene research. The findings of the study seemed encouraging. However, despite detecting the additive effects of graphene on performance, no more study has been undertaken to forecast the effects on engine performance. The objective of this study was to predict the effects of graphene nanoplatelets as an additive for diesel engines. The performance parameters of the trial were torque, power, BSFC, and BTE. Speed, load, and blend concentration are all considered in this model. Response surface methods and contour plotting with Minitab software were used to generate the prediction model. The results show that the prediction model is within 10% of the experimental data.
Effect of Electrode Diameter and Current on Dissimilar Metal Welding (Stainless Steel - Galvanized Steel) in Bus Body Construction: Microstructure and Properties Evaluation
Authors: Suntari Suntari , Purwanto Helmy , Respati Sri Mulyo Bondan , Sugiarto Sugiarto , Abidin Zainal
Published: December 2022

This study evaluates the macrostructure, microstructure, hardness, and tensile strength in dissimilar metal welding applied to bus body construction. The process involved joining hollow stainless steel and galvanized steel at the dimensions of 80 x 40 x 3.2 mm through Gas Metal Arc Welding (GMAW). The current was varied at 90, 100, and 110 A while ER70S-6 electrodes with diameters of 0.8 and 1.0 mm were used. The results showed that electrode diameter and welding current affect the capping area, penetration depth, and hardness. Moreover, the formation of the widmasatten ferrite phase was increased and the coarse grain boundaries in the weld zone were detected. It was also observed that an increase in the diameter of the electrode and the welding current which indicates an increment in the heat reduced the rate of solidification and cooling. The average tensile strength for all the samples investigated was found to be lower than the value for the base metal. Therefore, further research is recommended to improve the tensile strength.
Effects of Hexane Addition in Waste Plastic Fuel-Biodiesel-Diesel Blends on the Performance and Emission Characteristics of DI Diesel Engine
Authors: Kumar Rajan , Mishra Manoj Kumar , Roy Manish Kumar
Published: December 2022

The current study's sole objective is to evaluate the impact of hexane's addition to blends of diesel, waste plastic fuel, and jatropha biodiesel. Five fuel samples have been made in order to do this, including diesel-waste plastic fuel-jatropha biodiesel (D70WPF20JB10 and D70WPF10JB20), diesel-hexane-waste plastic fuel-jatropha biodiesel (D65HX5WPF20JB10 and D65HX5WPF10JB20), and plain diesel (D100) as a reference fuel. Following thorough characterization, studies using spectroscopic techniques such as FTIR, elemental analysis, and GC-MS are conducted. Finally, performance and emission tests on a direct-injection single-cylinder diesel engine were conducted. The density, flash point, and acid value of the diesel-waste plastic fuel-jatropha biodiesel blend are observed to decrease with the addition of hexane. With the addition of hexane, the calorific value and diesel index of the fuel both rise by 0.86% and 12.5%, respectively. In the case of the hexane mix fuel samples, it is discovered that the brake thermal efficiency and volumetric efficiency are higher and the brake-specific fuel consumption is lower. Hexane is added to the diesel-waste plastic fuel-jatropha biodiesel mixture, which results in a 34 percent rise in HC emissions and a 9 percent decrease in CO emissions. Additionally, it lowers by 8% and 15%, respectively, the temperature of the exhaust gas and the fuel's NOx emissions. The fuel sample with code D65HX5WPF10JB20 exhibits the best results among all the fuel samples in terms of performance and emission analyses.
Pengaruh Metode PQRST Berbantuan Media Puzzle Kalimat Terhadap Keterampilan Membaca Pemahaman
Authors: Arina Dwi Tunggal
Published: December 2022

This research aims to determine the effect of the PQRST method assisted by Sentence Puzzle Media on Reading Comprehension Skills for Grade 4 Students at SDN Banyakan, Mertoyudan District, Magelang District.The research design design uses a Pre-Experimental with the type of One Group Pretest-Posttest Design. Samples taken as many as 25 students through saturated sampling technique. The data collection method used in this research is the performance test. The validity test of intrumen by expert and using with SPSS 24.0 for windows like that reliability test. Prerequisite analysis test consist end from normality test, while data analysis used parametric statistical techniques, namely the Paired Sample T-test with the help of SPSS 24.0 for windows.The results showed the reading comprehension skills of the fourth grade students of SDN Banyakan before using the PQRST method assisted by sentence puzzle media (Pre test), the highest reading comprehension skills were 66, while the lowest was 13 with the average student being 41.20. The results of reading comprehension skills after using the PQRST method with sentence puzzle media (Post test) obtained the highest score of 87, the lowest score of 40 with the average reading comprehension skills of students was 62.76. Based on the results of the study showed that the PQRST method assisted by sentence puzzle media had a significant effect on reading comprehension skills of fourth grade students of SDN Banyakan. This is indicated by the tcount value of 16.800 with a sig = 0.00 (p <0.05).
Pengaruh model teams games tournament berbantuan media question card terhadap pemahaman konsep bangun ruang
Authors: Putri Agitha Anggraeni , Mardiana Tria , Wijayanto Sukma
Published: December 2022

This study aims to determine the effect of the Model Teams Games Tournament (TGT) assisted by Question Card media on the understanding of the concept of building space for fifth grade students at SD Negeri Deyangan 2, Mertoyudan District, Magelang Regency. This study uses a Pre-Experimental Design research type with the One Group Pre-test Post-test Design model. Research subjects were selected by non-probability sampling saturated sampling model. Samples were taken as many as 18 students. by using the data collection method in the form of a description test of 10 questions. The validity test for the description of the ability to understand concepts used the shapiro wild formula with the help of IBM SPSS 25. In addition, the researchers used the level of difficulty test and the test of discriminating power. Data analysis used a non-parametric statistical technique, namely the Wilcoxon test. The results showed that the calculation of the average score of the post-test description test was 66.5 which was greater than the test results in the pre-test with an average value of 41.9. This is evidenced by the results of the Wilcoxon test analysis which shows Zcount of -0.3727 with a significance value of 0.00 <0.05, meaning that there is a significant difference between the results of the pre-test and post-test using the Teams Games Tournament (TGT) model assisted Media Question Card. The results of this study can be concluded that the use of the Model Teams Games Tournament (TGT) assisted by Question Card media has a significant effect on understanding the concept of flat shape.
Decision support system funding on the website of Dana Syariah using the Simple Additive Weighting method
Authors: Wiguna Tansa , Rahayu Aulia Putri Restu , Wicaksono Soetam Rizky
Published: December 2022

Dana Syariah is a Sharia-based Fintech P2P Financing company that is licensed and supervised by the Financial Services Authority (OJK). Focusing on property funding and registered since June 8 2018. From June 2018 – March 2021, Dana Syariah provides financing with a nominal value of approximately Rp. 1.28 trillion and around 62 thousand active lenders provide loans that are used by 1000 property project units. To get results as needed in choosing funding, a decision support is needed using the SAW method. The basic concept of the SAW method is to search for a weighted sum based on a rating for each available alternative in all attributes. The SAW method is known by two attribute terms, namely the benefit criteria and the cost criteria. The difference between these two criteria is part of the selection of criteria when making decisions. The criteria applied include: (1) Project Tenor/Duration (2) Annual Returns/Results (3) Collateral (4) Project Owner. After determining the criteria and weighting, then you can determine the scale with the provisions of the assessment for each criterion. The SAW method can be scientifically proven and can be used in logic to support decision making. In procurement or funding on the Dana Syariah website, an analysis of several available funding programs is carried out. The results of this study, based on 6 objects, there are 3 objects that have a similar rating with the first recommendation ranking.
Prediction of material requirements for network construction using apriori algorithm
Authors: Nur'Aini Layli , Hanafi Mukhtar , Artha Emilya Ully
Published: December 2022

PT XYZ is one of the providers of fixed broadband development services spread throughout Indonesia. What often happens is the lack of material availability and the long pre-order process, thus hampering projects that have been agreed upon for completion. The a priori algorithm is one of the data mining algorithms in the association method, which is looking for relationships between interrelated items. This research uses the help of RStudio software. This prediction is expected to help to prepare material stock in the warehouse so as to prevent material vacancies in the warehouse. The results of this study are in the form of a rule that meets the minimum support value (a measure that shows how much dominance an item/item set is from the entire transaction) of 27.84%, minimum confident (a measure that shows the relationship between 2 items conditionally) of 27.84%. 84.48% and the lift ratio (a measure to see whether or not the association rules are formed) is > 1.
Multimedia development life cycle method for script making in the film kultur
Authors: Admaja Yoan Hadi Kusuma , Sonita Anisya
Published: December 2022

The technique of making scripts in cultural films is a written work that aims to explain how important scripts are in filmmaking, where the script is the foundation for the formation of the film itself, besides that the writer also provides an explanation of the procedures for writing film scripts, starting from the beginning of the story idea to the formation of a script that can be adopted into a film, here the writer raises the theme of culture which is interpreted as culture, and the culture that is adopted here is the Bengkulu culture which is in such a way that it is almost extinct or obsolete, not only Introducing the importance and procedures for writing scripts, the author also educates a film entitled culture for the entire community, especially the Bengkulu people, with the aim of rebuilding the spirit of preserving the diversity of Bengkulu cultures which are almost extinct and obsolete.
Forecasting system of sales and amount of freshwater fish supply using the trend moment method
Authors: Akbar Romi Yunma , Ratna Arumi Endah , Primadewi Ardhin
Published: December 2022

UPTD Ngrajek as a provider of freshwater fish in Muntilan, Kab. Magelang serves an average of 150,000 fish per month from tilapia, carp, tawes, catfish, catfish and carp. So, we need a system that can predict the amount of supply and demand for freshwater fish to minimize stock shortages. The Trend Moment method is used because of the advantages of using historical data that is not even or odd. The results of the application of the Trend Moment method in the forecasting system with data from December 2018 - May 2021, it is known that the error value using the MAPE test is 19.11%. This value indicates that the forecasting results on the system are good. In testing the system using alpha testing (blackbox method) and beta testing (questionnaire). 20 respondents stated that the system is easy to operate (81%), easy to transact (98%). complete information (84%), complete features (73%), forecasting information (89%), user friendly (56%), and effective (80%).
The application of social philosophy in the era of revolution industry 4.0 in Indonesia
Authors: Fuad Fuad , Dewi Aida , Munawar Said
Published: December 2022

The presence of social philosophy is generally understood to be closely related to general philosophy. Social philosophy can see how its relation to the universe can result in interpretations of social life. Social philosophy, philosophy of science, and science itself are part of human efforts to understand a discipline's concept and method that can be implemented in changing times and progress. This study aims to examine the application of social philosophy and its relevance in the era of Industrial Revolution 4.0. This research uses a descriptive method of analysis with a literature study approach. Social philosophy is indispensable in the midst of the development of times and civilizations, such as the current era of the Industrial Revolution 4.0. By getting closer to social philosophy, it is hoped that humans can realize their limitations while cultivating an attitude and soul that is aware of the development of the times. The use of technology must benefit the welfare of all humans. So, it is hoped that it can minimize problems related to the development of technology which can change the mindset of human life to a more sophisticated life pattern. Thus, the science used as a handle in directing and controlling these developments positively for the benefit of humanity and its environment is the philosophy and social philosophy.
Prominent Figures of the Nizhyn Higher School in the Context of the History of Ukrainian Ethnolinguistics
Authors:   Nizhyn Gogol State University, Puhach V.
Published: December 2022

The paper deals with three outstanding figures from the history of Ukrainian culture of the 19th – early 20th centuries. This is Oleksiy Pavlovsky, the author of the first in history scientific grammar of the Ukrainian language (1818); Pylyp Morachevsky, the author of the first translation of the Gospel into Ukrainian (1859–1864); Fedir Vovk, the author of the first thorough ethnocultural monograph about the Ukrainian people in the European context (1918). Significant self-sacrificing work in the name of the future Ukrainian people and involvement in the Nizhyn Higher School unite their names. Their visions of Ukraine, understanding of the world context of Ukrainian culture determined their civic choice. The scientific and creative output of students and teachers of Nizhyn Higher School is changing the boundaries of philological regional studies. The significance of the Nizhyn ethnolinguistic scientific school in the context of the history of Ukrainian ethnolinguistics is revealed in the article.
The objectivation of the concept of war in the Hryhir Tyutyunyk’s story "Klymko"
Authors:   Nizhyn Gogol State University, Boyko N.
Published: December 2022

The article identifies and characterizes the lexical-semantic means of objectifying the concept of war in Hryhir Tyutyunnyk’s story "Klymko", traces the semantic connections of the nuclear, peri-nuclear and peripheral zones of the concept of war with the components of emotional-evaluative lexical-semantic zones. The concept of war in the story has lexical means of objectification, the totality of which represents the plan of expression of the corresponding lexical-semantic field, centered around the dominant represented by the name of this concept. Lexical units are concentrated around the name of the concept, which reflect the dynamics of events, their perception by the character. Lexemes of the perinuclear zone are filled with specific functional and stylistic dimensions, they undergo contextual actualization of their associative and emotive-evaluative semantic plans. The lexical-semantic field of the concept testifies to the subjective vision, understanding, evaluation and reproduction of the events of the war in the story. Features of objectification of the concept are related to the age of the main character, his emotional states and reactions. The specificity of the objectification of the concept of war in Hryhir Tyutyunnyk’s story "Klymko" can be seen in its versatile characteristics, in connections with concepts belonging to emotive-evaluative lexical-semantic zones. The analysis of the contexts of the story based on the lexical-semantic field of the concept of war proves that the author objectifies the features of representatives of the Ukrainian mentality, contrasting them with the brutality of the invaders. The specificity of the objectification of the concept of war in Hryhir Tyutyunnyk’s story "Klymko" can be seen in its versatile characteristics, in connections with concepts belonging to emotive-evaluative lexical-semantic zones. Humanity knows numerous military operations, battles in which millions of people participated, in which it was involved and which cannot be erased from the memory of every person, regardless of his nationality, state, age, gender, etc. Unfortunately, Ukrainians are forced to experience this terrible phenomenon even today, in the 21st century.
Actualization of Subordinate Circumstantial Constructions of Adverbial Type in the Artistic Speech of Yevhen Gutsalo
Authors:   Nizhyn Gogol State University, Vakulenko G. , Klypa N.
Published: December 2022

The article characterizes the structural and semantic features of compound sentences with subordinate circumstantial parts of the adverbial type, which can be found in Yevhen Gutsal’s short prose. Both the semantic and syntactic relations between predicative parts, explicit connecting means are described. The functional load of the analyzed constructions in terms of artistic expression of the author’s approach is clarified. The productive use of compound sentences with adverbial circumstantial parts of spatial, temporal, methodical, quantitative and comparative semantics in the artistic speech of Yevhen Gutsalo is proved to be due to his communicative need to expand the syntactic level of time and space, quality and quantity. In general, compound sentences with proverbial subordinate clauses in the writer’s texts reflect the general tendencies in the construction and peculiarities of the functioning of these structures. The writer’s individual style of their use is manifested in the communicative need of these models to express specific semantic and syntactic relations, personal preferences for the choice of connecting means, the order of predicative parts, lexical and semantic content of structures. An important feature in the actualization of the analyzed sentences are the stylistic features of the writer’s language: lyricism, realism, colloquialism, psychologism, which requires attention to details, depiction of personal feelings and evaluation.