bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH MODEL PEMBELAJARAN INSTAD TERHADAP PRESTASI BELAJAR IPA SISWA KELAS V SD MUHAMMADIYAH 1 WONOPETI KULON PROGO
Authors: Utaminingsih Retno , Akhir Riwanto Mawan
Published: June 2024

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran InSTAD terhadap prestasi belajar IPA. Metode penelitian yang digunakan adalah quasi experiment dengan Nonequivalent Control Group Design. Penelitian ini dilakukan di kelas V SD Muhammadiyah 1 Wonopeti Kulon Progo. Teknik pengumpulan data menggunakan teknik tes dan teknik dokumentasi. Teknik analisis data menggunakan uji-t sebelum data dianalisis terlebih dahulu dilakukan uji prasyarat analisis yaitu uji normalitas sebaran dengan menggunakan Chi Kuadrat dan uji homogenitas varian dengan menggunakan uji-F. Pada penelitian ini diperoleh thitung= 4,419 dengan p=0,000. Karena nilai p ≤ 0,01, dapat disimpulkan bahwa ada perbedaan yang sangat signifikan pada prestasi belajar IPA siswa kelas V SD Muhammadiyah 1 Wonopeti Kulonprogo Tahun Ajaran 2018/2019 antara pembelajaran yang menggunakan model pembelajaran InSTAD dengan pembelajaran menggunakan model pembelajaran ekspositori. Skor rerata prestasi belajar IPA di kelas eksperimen yang menggunakan model pembelajaran InSTAD adalah 15,483 dan skor rerata prestasi belajar IPA di kelas kontrol yang menggunakan model pembelajaran ekspositori adalah 13,136. Karena skor rerata prestasi belajar IPA yang menggunakan model pembelajaran InSTAD lebih tinggi dari pada skor rerata prestasi belajar IPA yang menggunakan model pembelajaran ekspositori, maka ada pengaruh model pembelajaran InS TAD terhadap prestasi belajar IPA dari siswa kelas V SD Muhammadiyah 1 Wonopeti Kulonprogo Tahun Ajaran 2018/2019.
Kata Kunci: InSTAD, IPA, model pembelajaran, prestasi belajar
ANALISIS KEBUTUHAN PENGEMBANGAN MEDIA BEAUTIFUL CARD PADA PEMBELAJARAN MATEMATIKA
Authors: Aristiyani Alfi , Nur Rohmah Aldila , Hidayati Yulia Maftuhah , Desstya Anatri
Published: June 2024

Tujuan dari penelitian adalah mengeksplorasi konsep pada pembelajaran penjumlahan dan pengurangan untuk penerapan model beautiful card serta mengeksplorasi informasi awal tentang media yang digunakan dalam pembelajaran matematika untuk pengembangan media beautiful card. Penelitian ini adalah penelitian Kualitatif. Penelitian ini hanya dibatasi sampai dengan analisis kebutuhan. Subjek dalam penelitian ialah siswa kelas I dan guru di beberapa sekolah di Kecamatan Tasikmadu. Teknik pengumpulan data dilakukan dengan studi lapangan dengan cara menyebarkan angket kebutuhan melalui goggle form kepada beberapa guru dan siswa kelas I di Kecamatan Tasikmadu. Hasil penelitian ini adalah: 1) Pada pelajaran matematika kelas I SD pada materi pengurangan dan penjumlahan masih terlihat abstrak; 2) Guru belum menggunakan suatu media untuk pembelajaran dan guru hanya bermetodekan ceramah saja. Materi yang diberikan masih terasa sulit untuk dipahami karena materi masih abstrak, jadi membutuhkan bantuan untuk memahami sebuah konsep tersebut dengan menggunakan media pembelajaran.
Peran guru dalam meningkatkan motivasi belajar dan keterampilan sosial siswa sekolah dasar pasca pandemi
Authors: Marwanti Endah , Megawati Ida , Anggreini Dewi , Nugroho Irfan Adi , Fantoro Fajar Mur , Rohayati Andang
Published: June 2024

The influence of the lack of student learning motivation will be related to learning outcomes. The diverse character of students makes social attitudes change due to the impact of technology. This study aims to find out how to increase students' learning motivation and social skills through the role of teachers after the COVID-19 pandemic. This study uses a qualitative type of research by using the principal as a key informant. For the research sample, the principal appointed several teachers and selected the students in order to achieve data validity. Data collection techniques using observation techniques followed by interview techniques are the main techniques in this study. This study uses documentation techniques to complement the results of observation and interview techniques. The data analysis used is data collection, data reduction, data presentation, and conclusion drawing. The results of this descriptive study indicate that: in increasing learning motivation in the learning process, the teacher relates it to the material and everyday life. This is done by utilizing several existing facilities such as the use of LCD in the form of videos, and images according to the material to be studied. To improve student's social skills, teachers implement them with teacher behavior and attitudes. The teacher as a facilitator helps make it easier for students to receive learning materials. The teacher acts as a guide for children to get used to applying good social skills in every activity. Teachers are good role models in interacting with others.
Keywords: Learning Motivation; Social skill; Teacher’s Role
Instant Organoleptic Test of Ginger from Three Ginger Varieties (Zingiber officinale)
Authors: Herawati Jajuk , Thohiron Mochamad , Toheri Toheri , Dhinata Yhogga Pratama
Published: June 2024

Instant organoleptic test of ginger against three varieties of ginger (Zingiber officinale) is descriptive research.  The purpose of this study is to examine the feasibility of processed ginger formulations and their effect on the level of preference of panelists as consumers for instant ginger as an herbal drink made from raw materials with three varieties of ginger.  This research was conducted in May-July 2023 at the Production Laboratory of the Faculty of Agriculture-UWKS using a one-factor Complete Randomized Design (RAL) consisting of 3 levels.  The treatment is the use of the main raw materials of ginger with 3 varieties, namely J1 = elephant ginger (2023 research results); J2 = red ginger; J3 = empirrit ginger. The observation parameters were carried out through Organoleptic tests on product properties, namely taste, aroma, texture, color, physical appearance, and knowing the level of preference of panelists for ginger instant drinks from 3 varieties of ginger, and each treatment was repeated three times with 10 panelists each repeat.  This hedonic test with sensory analysis of instant ginger products is used to guess what products the panelists like the most with the level of liking.  The method used in this Hedonic Test, consists of 5 levels: (1) very dislike, (2) dislike, (3) ordinary, (4) like, and (5) very like   From the results of this study is expected to provide benefits to the public in consuming ginger as a healthy herbal drink, as well as for other researchers who are interested in similar research. Three levels in the treatment of the use of three varieties of ginger on instant results of ginger, from organoleptic tests give results that elephant ginger has advantages in aroma and color, empirrit ginger has the advantage of soft texture and red ginger has a good taste.
UPAYA PROGRAM SEKOLAH LANSIA DALAM MENINGKATKAN KESEJAHTERAAN LANSIA (Studi Sekolah Lansia Selaras Desa Tandem Hulu II)
Authors: Manurung Putri Adinda
Published: June 2024

AbstrakAdapun alasan peneliti mengangkat permasalahan ini ialah dikarenakan masalah kesejahteraan lansia sering terabaikan sehingga peneliti ingin mendeskripsikan bagaimana upaya sekolah lansia dalam meningkatkan  kesejahteraan lansia di Desa Tandem Hulu II, Kecamatan Hamparan Perak, Kabupaten Deli Serdang. Metode yang digunakan pada penelitian ini yaitu menggunakan metode penelitian deskriptif kualitatif. Lokasi yang akan dilakukan untuk observasi penelitian ini adalah di Desa Tandem Hulu II, Kecamatan Hamparan Perak, Kabupaten Deli Serdang. Adapun teknik pengumpulan data yang digunakan pada penelitian ini yaitu menggunakan wawancara, dan observasi. Adapun teknik analisis data yang digunakan dalam penelitian ini ialah analisis naratif. Hasil dari penelitian ini adalah Sekolah lansia sudah efektif dalam meningkatkan kesejahteraan lansia, pasalnya karena adanya sekolah lansia ini membuat para lansia bisa mengembangkan potensi diri seperti pengembangan hobi, bakat, dan keterampilan, serta dapat belajar hidup sehat dan bersosial. Adapun alasan para lansia mengikuti sekolah lansia ini ialah karena tertarik dengan program-programnya, karena ingin jadi lansia yang produktif, ingin meningkatkan pengetahuan, menjaga kesehatan, mengembangkan potensi lansia dimasa tua, serta mengembangkan keterampilan lansia. Organisasi yang diikuti para lansia selain sekolah lansia dimasa tua sepeti ini antara lain: posyandu lansia, pengajian mingguan atau majelis ta’lim, dan ikut kegiatan PKK.Kata Kunci: Lansia; Program sekolah lansia: Kesejahteraan
Pengaruh Keseimbangan Kehidupan Kerja, Orientasi Tujuan, Remunerasi Dan Spiritualitas Kerja Terhadap Motivasi Berprestasi Karyawan Pt. Lanhai Indonesia Di Mojokerto
Authors: Putriningsih Elfa Eka
Published: June 2024

Employee work motivation is one of the important factors in realizing a more effective and efficient production process in a company. The low work motivation of the employees will have an impact on less maximal production results, both in terms of quality and quantity. Therefore, the purpose of this study is to analyze and find out whether there is a significant influence between work-life balance variables, goal orientation, remuneration, and workplace spirituality on the work achievement motivation of employees at PT. Lanhai Indonesia. This type of research is a type of quantitative research with a descriptive statistical approach. The sample used in this study were employees of the production section of PT. Lanhai Indonesia has as many as 135 respondents. Based on the results of the analysis carried out in this study, the regression equation Y = 0.396 + 0.198 (X1) + 0.92 (X2) + 0.310 (X3) + 0.115 (X4) is obtained. The f-test results show that work-life balance, goal orientation, remuneration, and spirituality simultaneously have a significant effect on employee work performance motivation. Whereas the t-test shows that work-life balance and remuneration partially have a significant effect on employee work achievement motivation, the goal orientation, and work spirit variables partially do not have a significant effect on employee work achievement motivation. The results of this analysis also show that the remuneration variable has the most dominant influence on employee achievement motivation with the percentage of influence being 15
Pengaruh Kualitas Pelayanan Dan Fasilitas Terhadap Loyalitas Pasien Dengan Kepuasan Pasien Sebagai Variabel Intervening (Studi Pada Poliklinik Jantung RSUD Bakti Dharma Husada Surabaya)
Authors: Tamonsang Matheous , Apriliyanto Muhammad Dwi
Published: June 2024

The purpose of this study was to determine the effect of service quality and facilities on patient loyalty at the Heart Clinic at Bhakti Dharma Husada Hospital Surabaya with patient satisfaction as a moderating variable. In this study, sampling was carried out by non-probability sampling with a purposive sampling procedure, which means that the sampling technique is based on certain considerations. With a total sample of 82 people. Research data processing using data analysis respondents using path analysis (path analysis) with the help of SPSS 16. The results concluded that service quality has a significant effect on patient satisfaction, facilities have a significant effect on patient satisfaction, service quality partially has a significant effect on patient loyalty, facilities are Partial significant effect on patient loyalty, patient satisfaction partially significant effect on patient loyalty, patient satisfaction is not an intervening variable service quality and facilities variables on patient loyalty.
Pengaruh Kompensasi Dan Lingkungan Kerja Terhadap Semangat Kerja Karyawan Pada Masa Pandemi Covid-19 (Study pada karyawan gudang UD. SINAR REJEKI Surabaya)
Authors: Soebandi Santirianingrum , Agustina Mefia Fera
Published: June 2024

This research is an empirical study at UD SINAR REJEKI Business Entity in Surabaya which aims to prove that Compensation and Work Environment have a significant influence on employee morale. This study used a quantitative approach with a population of 57 people in the UD SINAR REJEKI business entity and a sample of 40 respondents. The analysis technique used is multiple linear regression using SPSS 20 software preceded by data quality test and classic assumption test. The results showed that all data were declared valid and reliabel and met the classical assumption test requirements. The conclusion of the study that compensation and work environment had a significant effect on the work spirit of employees with evidence of t-test results on both variables obtained a significance value of less than 0.05.
Pengaruh Operational Leverage, Financial Leverage Dan Capital Adequacy Ratio Terhadap Return Saham Perusahaan Perbankan Yang Go Public Di PT. Bursa Efek Indonesia
Authors: Pardosi Thamrin Kristopel
Published: June 2024

This study aims to analyze the effect of operational leverage, financial leverage and capital adequacy ratio on stock returns of nineteen banks that went public at PT. Indonesia Stock Exchange with an observation period of 2014-2018. The analysis technique used is multiple linear regression. The results showed that only the Operational Leverage variable had a significant effect on stock returns. In addition, the more dominant variable its effect on stock returns is operating leverage. So that the two hypotheses are not proven true.
Consumer Intention To Switch From Conventional Money To E-Money
Authors: Ariska Ricky Angga , Waskita Johan Paing Heru , Purwitasari Fadilla
Published: June 2024

The development of electronic payments, also known as non-cash transactions, is greatly influenced by advances in technological development and changes in people's lifestyles. Currently, the development of non-cash payment instruments is running very rapidly and has a big impact on buying and selling transactions. With the support of increasingly advanced technology, people who use and provide non-cash payment system services are continuously looking for alternative non-cash payment instruments that are more efficient and safe. This research discusses the factors that influence consumers in switching from using conventional money to e-money. Research subjects are people who have e-money and have made transactions using e-money. The research object is all types of e-money used in Indonesia legally according to Indonesian regulations. The variables used in this research are Compatibility Factor, Convenience Factor, and Perceived Content Factor. The sample was determined using purposive sampling with the criteria of students at the Faculty of Economics and Business, Universitas Wijaya Kusuma Surabaya who had an e-money account and had made transactions using e-money at least 3 times. The number of research samples was determined using the Slovin sample calculation. This formula takes into account the known population size. The research sample used was 100 respondents. The analysis techniques used in this research are Validity Test, Reliability Test, Multiple Linear Regression Model Analysis, F Test, and t Test. In the data processing that has been carried out, Compatibility and Perceived Content have an influence in the same direction as Intention to Switch. Meanwhile, Convenience has an influence that is not in the same direction as Intention to Switch. The results of the hypothesis test show that the significant value of Compatibility is 0.000. Convenience is 0.666. Perceived Content is 0.000. This value shows that Compatibility and Perceived Content have an influence on switching behavior to e-money, while Convenience has no influence on switching behavior to e-money.
Growth and Yield of Carrot Plants (Daucus carota L.) in Combined Doses of Chicken Cage Organic Fertilizer and NPK Inorganic Fertilizer
Authors: Chosim Nanang , Purnamasari Retno Tri , Hidayanto Fajar
Published: June 2024

Demand for vegetable commodities, including carrots, is high due to the increasing population and increasing public awareness of nutritional value, the need for food consumption is also increasing. The purpose of this study was to obtain the right dose of combination of chicken coop organic fertilizer and pearl npk inorganic fertilizer to support the growth and yield of carrot plants. The method used in this study was a randomized group design (RAK) with 4 treatments and each treatment was repeated 6 times. The treatment made is P0: 100% NPK Mutiara (75 kg ha-1); P1: Chicken manure dose 20 tons ha-1 + 50 % NPK; P2: Chicken manure dose 25 tons ha-1 + 50 % NPK; P3: Chicken manure dose 30 tons ha-1 + 50 % NPK. Research results The results showed that dosing treatment of 30 tons ha-1 + 50% NPK Plants-1 can increase the growth and highest yield of carrot plants compared to other treatments.
Bartın Manileri Üzerine Bir İnceleme
Authors: Ceryan Burcu
Published: June 2024

Öz
Halk şiirinin önemli türlerinden olan mani türü zaman içinde kimi değişim ve dönüşümler yaşasa da önemini hiç kaybetmeyen bir tür olmuştur. Mani nazım şekli ve türünün ortaya çıkardığı ‘mani söyleme geleneği’ de yüzyıllardan bu yana kuşaklar boyunca aktarılarak günümüze kadar yaşamıştır. Ancak zamanla meydana gelen kültürel değişimler, göçler ve en önemlisi de teknolojiden olumsuz yönde etkilenmekten kaçamamıştır.
Bartın ili, Türkiye’nin Batı Karadeniz Bölgesi’nde yer alan tarihî, turistik değerleri, ormanları ve doğal güzellikleri yönünden önemli ve gelişmekte olan illerden biridir. Bartın'da mani söyleme geleneği, yukarıda bahsedilen tüm olumsuz değişimlere rağmen eskisi gibi olmasa da hâlâ devam etmektedir. Yörede bilhassa toplu ortamlarda icra edilen mani söyleme geleneği büyük toplanma zamanlarında daha çok ön plana çıkmaktadır. Bunlar düğünler, kına geceleri, bayramlar ve çeşitli kutlama zamanları olarak sıralanabilir. Bu bağlamda Bartın'da mani söyleme geleneği geçmişten günümüze kadar değişerek gelen, sosyal ve kültürel değerleri de içinde barındıran bir gelenek olarak karşımıza çıkmaktadır. Bu çalışmada da bu geleneğin devam ettiği alanları tespit ederek mani söyleme geleneğinin gelecek nesillere doğru bir şekilde aktarılmasına yardımcı olmak amaçlanmıştır. Bu amaç bağlamında, Selâhattin Çilsüleymanoğlu tarafından Bartın yöresinden derlenen maniler tasnif edilmiş ve çeşitli başlıklar ortaya çıkarılmış, bu başlıklar altında da örnekler incelenmiştir.
Anahtar Kelimeler: Bartın, Kültür, Mani, Gelenek, Mani Söyleme Geleneği.
Research into methods and algorithms for generating (pseudo) random sequences over an arbitrary alphabet
Authors: Gorbenko I.D. , Alekseychuk A.N. , Kachko Ye.G. , Derevianko Ya.A.
Published: June 2024

Randomness is an integral component of most special software and hardware CIP tools. Work and development towards improving the process of randomness generation is actively underway and requires special attention.
This paper is devoted to the research into algorithms for generating (pseudo)random sequences over an arbitrary alphabet, estimating their complexity (time and capacity), as well as statistical characteristics. This study is important because modern post-quantum algorithms use such sequences to generate keys and random components of digital signatures and key encapsulation.
Obtained results can serve as a motivation for choosing an algorithm for generating sequences of an arbitrary alphabet for use in certain cryptographic transformations or algorithms.
Assessment of the localization error of radio-acoustic bug devices by means of acoustic distance measurement
Authors: Oleynikov A.N. , Lykov Yu.V. , Zabolotnyi V.I.
Published: June 2024

Localization of a radio-acoustic bug device (RABD) is the determination of its location in space. Localization of the RABD can be carried out both by the electromagnetic field and by using acoustic probing signals.
Localization using acoustic probing signals is carried out using an acoustic rangefinder (AR) as part of a hardware-software complex (HSC) for detecting RABD (for example, the «ORT», «VOSTOK» hardware systems developed at KNURE). The operating principle of AR is given in the article.
The error in measuring the coordinates of the RABD with an acoustic rangefinder consists of instrumental and random errors in measuring the range, as well as the methodological error in determining the location of the RABD, which is due to the peculiarities of the rangefinder method of determining coordinates.
The article addresses the issue of minimizing the error in measuring the range of a bug device with an uncertainty of location by analyzing various methods for fixing the temporary position of an acoustic signal in real conditions for detecting radio-acoustic embedded devices in designated premises.
The advantages and disadvantages of various methods for fixing the time position of an acoustic signal along one of the pulse fronts are analyzed simultaneously on the leading and falling edges of the pulse, at the position of the maximum signal values and using the correlation method of fixing the time position of the signal in relation to the localization of radio-acoustic bug devices in real conditions. The results of mathematical modeling and experimental research using the HSC “VOSTOK” of the error in determining the range to a radio-acoustic bug device are presented.
It has been established that when localizing bug devices using an acoustic range finder, it is advisable to use the correlation method of fixing the time position of pulses. At the same time, there is a decrease in the standard deviation of the localization error compared to the threshold method by 15% in the range of s/n values from 2 to 20, high stability of the results and low sensitivity to changes in the amplitude of the received signal.
Software and hardware complex based on the STM32F407VG microcontroller for studying vibrations with the LIS3DSH accelerometer
Authors: Semenets V.V. , Grigoriev A.V.
Published: June 2024

The statement of the problem of building a software-hardware complex based on the STM32F407VG microcontroller for studying vibrations with the LIS3DSH accelerometer is given.
A physical model of the system, including a microcontroller, three-axis digital LIS3DSH accelerometer, was designed and implemented, which is characterized by a low price of the technical solution. The interaction between the microcontroller and the accelerometer occurs through the SPI interface.
Specialized software of the system was developed and implemented, it includes a driver for setting up, collecting and processing data from the accelerometer and a corresponding software for plotting graphs of vibro acceleration signals in the time and frequency domains. The built-in software enables you to implement extensive functionality and is free to use.
The built system makes it possible to analyze vibration parameters in order to predict and prevent possible accidents, reducing the costs associated with the failure of expensive parts and components.
Research of the angular distribution of errors at different transmission speeds in the decameter range
Authors: Bulaga V.A.
Published: June 2024

The paper states that the main factors that affect the reduction of bandwidth and reliability of communication channels in the decameter range are multiradiation and the level of interference from transmitters operating at close frequencies. It is known that one of the methods of combating such negative phenomena is the use of phased antenna arrays in communication systems. The paper evaluates the efficiency of the phased antenna system according to the information criterion "error coefficients – elevation angle". The angular distribution of errors at different transmission speeds in the short-wave range when using phased antenna arrays was studied according to the information criterion "error coefficients – angle of position". The results obtained in the work allow us to draw the following conclusions: the possibility of using error detection devices when testing the reliability of communication channels is fully confirmed communication of the decameter range; the use of controlled phased antenna arrays on the receiving side allows to solve a complex of trajectory tasks, and also allows to evaluate the effectiveness of communication systems that use beam distribution at the reception.
EVALUATION OF CROSS RIVER NATIONAL PARK AS A CATALYST FOR COMMUNITY LIVELIHOOD SUSTENANCE, NIGERIA
Authors:   Department of Environmental Education, University of Calabar, Calabar, Nigeria, ETTA Cassidy Agbor , EJA Eja Iwara ,   Department of Tourism, University of Calabar, Calabar, Nigeria, OWAN Emeka Josephet ,   Department of Sociology, University of Calabar, Calabar, Nigeria, UYANG Francis Abul ,   Department of Sociology, University of Calabar, Calabar, Nigeria, ARIKPO Iyam Mary ,   Department of Vocational Education, University of Calabar, Calabar, Nigeria, USHIE Christian Aloye ,   Department of Environmental Education, University of Calabar, Calabar, Nigeria, AGBOR-OBUN Dan, Felicia ,   Department of Human Kinetics and Health Education, University of Calabar, Calabar, Nigeria, EBAGU Tangban Egbe ,   Department of Social Works, University of Calabar, Calabar, AYENI Queen Olubukola ,   Department of Modern Languages and Translation Studies, University of Calabar, Calabar, Nigeria
Published: June 2024

This research focused on evaluation of Cross River National Park as a catalyst for community livelihood sustenance, Nigeria. Interviews and Focus Group Discussions were used to obtained primary data. Reconnaissance survey was conducted for one month in the National park to assess the situation on ground and with the aid of a check-list. The Pearson Product Moment Correlation Coefficient was used to analyzed the data obtained from the study. Results findings shows that the current programs aimed at the development of the park's management were insufficient. To mitigate tensions between the park management and the communities, it is imperative to explore alternative livelihood options, with livestock rearing emerging as a viable avenue. This approach would provide the communities with improved economic opportunities.
Consumo de ultra fast fashion e a obsolescência programada das microtendências estimulada pelas lógicas algorítmicas
Authors: Barros Marassi Alessandra , Trindade Eneus
Published: June 2024

O artigo analisa o fenômeno da loja Shein no consumo ultra fast fashion a partir do efeito de obsolescência programada das microtendências fomentada pela lógica algorítmica presente no ambiente digital. Buscamos compreender como essas lógicas operam nas práticas de consumo de moda rápida face a comunicação midiatizada do processo de compra e de uso das quais se beneficia a empresa chinesa. As interações dos consumidores nas redes sociais sustentam a modulação do comportamento de consumo como fonte das estratégias de obsolescência das microtendências. Ao final apresentamos uma cartografia das ações adotadas na operação da loja, e que nos leva a refletir sobre o fomento ao consumo.
Cadências do samba em chanchadas musicais da década de 1950
Authors: Maia Guilherme
Published: June 2024

Este artigo é o resultado de um estudo sobre o estatuto do samba nas comédias musicais brasileiras da década de 1950. A partir de um corpus de 14 obras e 230 números musicais, o texto examina a presença do samba sob uma perspectiva quantitativa em relação a outros gêneros, analisa aspectos sonoros e visuais dos números musicais e faz perguntas sobre a ausência, no Brasil, de uma tradição de musicais sambeiros de alguma forma análoga às películas tangueras argentinas. O percurso analítico se alimenta do diálogo com investigações sobre a natureza dos musicais cinematográficos, as chanchadas, o samba e o cinema musical latino-americano.
Imbalance of mass components in the system of «medium – substance» under endogenous factors’ harmful effects
Authors:   Danylo Halytsky Lviv National Medical University, Maksymyuk H. , Stadnytska O. ,   Institute of Agricultural Sciences of Carpathian Region, NAAS, Vorobets M. ,   Danylo Halytsky Lviv National Medical University, Sedilo G. ,   Institute of Agricultural Sciences of Carpathian Region, NAAS, Maksym`yuk V. ,   Institute of Agricultural Sciences of Carpathian Region, NAAS
Published: June 2024

The method developed and adapted by the authors of this work for determining and analysing the peculiarities of mass imbalance of water, organic and inorganic components in “medium (water)-substance” systems under the influence of harmful exo- and endogenous factors is proposed. The recommended method will help to objectively determine and assess the degree of harmful influence of individual factors on mass homeostasis. In addition, it will allow to characterization of the features of the relationship between the separately taken components of the substances in amniotic and allantois fluids. The presence of long-term effects of inflammatory factors in the fetal membrane fluids of the amnion and allantois is reflected in the functional and placental barrier of the uterus in gestating cows. The direction of the displaced parts of the mass of water, organic and inorganic substances vary depending on the circumstances, either in the direction of increase or in the direction of decrease. It is quite possible that the unequal ability of organic and inorganic substances to bind water is associated with changes in the parameters of the mass of nutrients assimilated by the fetus in the amniotic fluid and accumulation of their breakdown products in the allantois fluid. It has been established that long-term inflammatory processes in the genital organs of pregnant cows alter the manner and quantity of water, organic, and inorganic substances mass parts transferred into the fluid of the fetal membranes of the amnion and allantois through the placental barrier of the uterus. This negatively affects the ability of chemical and biochemical compounds to bind water molecules and alters the intensity of nutrient assimilation processes, converting them into simpler compounds. The strength and method of harmful action determine whether components in the ‘water-substance’ system move towards an increase or decrease in their mass parameters. The consequence of this redistribution is an imbalance in mass homeostasis, negatively impacting the viability, growth, and development of the embryo and newborn fetus.
Quantitative and qualitative indicators of spermograms of men of different age groups in normal and with pathologies
Authors:   Ivan Franko National University of Lviv, Tarnovska A. , Heneha A. ,   Ivan Franko National University of Lviv, Hrytchyshyn D. ,   Ivan Franko National University of Lviv, Muzyka Ya. ,   Ivan Franko National University of Lviv, Chemiorkina V. ,   Ivan Franko National University of Lviv, Fedkovych N. ,   Ivan Franko National University of Lviv
Published: June 2024

The indicators of spermograms of men of different ages: younger (20-29 years), middle (30-39 years) and older age groups (40-50 years) with normozoospermia, oligoteratoasthenozoospermia, teratoasthenozoospermia and hypoteratozoospermia were studied. Spermograms were obtained during examination of patients at the “Alternative Clinic” reproductive medicine clinic. Spermograms were evaluated according to the following indicators: volume of ejaculate, viscosity, number of spermatozoa in 1 ml of ejaculate; the total number of sperm in the ejaculate; motility of spermatozoa according to movement categories A and B; sperm morphology (percentage of morphologically normal and morphologically altered spermatozoa), Farris fertility index and number of active spermatozoa. Having analyzed the results of spermograms of men of different age groups, we found out that the main indicators of deviations in these spermograms are the mobility of spermatozoa according to movement categories A and B; sperm morphology (percentage of morphologically normal and morphologically altered spermatozoa), Farris fertility index and number of active spermatozoa. In order to quantitatively assess the influence of oligoteratoasthenozoospermia, tera­toasthenozoospermia and hypoteratozoospermia and the age factor on the general variabi­lity of spermogram indicators of men of the younger (20–29 years), middle (30–39 years) and older (40–50 years) age groups, we conducted 41 series of univariate and 18 series of two-factor analysis of variance. After conducting a anova analysis, we established that the share of the influence of the studied diseases in the overall variability of the sperm motility index by category B in men of the younger age group is insignificant and amounts to 10 % of the total contribution, instead, the share of the influence of unaccounted factors is increasing, which is 90 % of the total contribution - this may indicate the presence of pathological processes in the reproductive organs of men. The share of the influence of the age factor on the overall variability of such indicators of spermograms as motility of spermatozoa according to category A and B, morphology of spermatozoa (percentage of morphologically normal and degenerate spermatozoa), Farris fertility index and activity and viability of spermatozoa of younger, middle and older age groups is insignificant and is in ranging from 1 to 6 %.
Lengua de señas, lengua escrita: la perspectiva bilingüe para las comunidades Sordas de México y Brasil
Authors: Cruz-Aldrete Miroslava
Published: June 2024

El estudio de las lenguas de señas y de las comunidades Sordas en América Latina data de algunas décadas atrás. Sabemos que, en el caso particular de México y Brasil, tiene un pasado en común, a partir de la fundación de las primeras escuelas para Sordos en estos países en el siglo XIX, gracias a la labor de Eduardo Huet. Este vínculo nos permite establecer nuevos puntos de encuentro respecto a los procesos de atención para las personas Sordas a la luz del siglo actual. La obra Lengua de señas, lengua escrita: la perspectiva bilingüe para las comunidades Sordas de México y Brasil se compone de colaboraciones de académicos de ambos países; consta de una introducción crítica y siete capítulos, en los cuales se abordan las condiciones del modelo educativo bilingüe (lengua de señas-lengua dominante en su forma escrita), la literacidad en las personas Sordas, el acceso a la cultura y a la información en lenguas de señas, la visión de las lenguas minoritarias y sus usuarios. Es un libro que invita a reflexionar sobre las comunidades Sordas y sus lenguas, la Lengua de Señas Mexicana (LSM) y la Língua Brasileira de Sinais (LIBRAS).
Nucleotide diversity of the fragment of cytocrhome oxidase gene subunit 1 of mitochondrial DNA in (Oncorhynchus Nerka) populations
Authors: Pustovoit S.
Published: June 2024

Purpose: to analyze the nucleotide diversity of the cytochrome oxidase gene fragment of the 1 mt DNA subunit in the Asian and American populations of sockeye salmon.

Materials and methods. The material for analysis is nucleotide sequences obtained by the author for the sockeye salmon population of the Ola River, and for a number of Asian and American sockeye salmon populations, located in the Gene Bank (www.ncbi.nlm.nih.gov). 139 sequences were analyzed, the unifies number of nucleotide was 640. The statistical parameters are as follows: ps – the proportion of polymorphic sites, θ - the proportion of polymorphic sites taking into account the number of sites (i) ps /a1 = 1\ 1\i = 1\ 1 + ½ + 1/3 + … + 1/i, πT – nucleotide diversity, πs – average nucleotide diversity within a population, δST – interpopulation nucleotide diversity. NST – coefficient of nucleotide differentiation, NST = δST / πT. The dendrogram is built using the values of the so-called p-distances, using the UPGMA clustering method.

Results. The nucleotide diversity of sockeye salmon from the Ola River (πT = 0,00505 (s=0,000080)) turned out to be slightly higher than in American populations (πT = 0,00403) (s=0,000002)). The coefficient of nucleotide differentiation NST and the number of polymorphic sites in Asian populations are higher than in American populations. Due to this, a higher level of nucleotide diversity was found in Asian sockeye salmon populations (πT = 0,00504 (s=0,000004)) than in North American ones. The nucleotide sequences of all individuals are divided into 2 groups. Individuals of these groups do not have territorial attachment, i.e. noted in both Asian and American populations. It is most likely that these groups formed as a result of Late Pleistocene climate fluctuations and the associated presence of two refugia on the Asian coast – the rivers of the northern coast of the Sea of Okhotsk and the rivers of the Kamchatka Peninsula, the second salmon, it is also assumed that two refugia will exist during the period of climate cooling, one in the area of the Alaska Peninsula, the second in the area of Vancouver Island. Almost all large populations of sockeye salmon are influenced by fishing and, in many cases, artificial farming. To reliably distinguish hatchery fish from sockeye salmon  produced in natural spawning grounds, the characteristic nucleotide sequence of the mtDNA cytochrome oxidase gene can be used.
Associations of fertility indicators of breeding Ayrshire cows in the conditions of the European North of Russia
Authors: Komlyk I. , Lepesheva I. , Bolgov A.
Published: June 2024

The fertility of cows as the ability to produce offspring has a fundamental importance for optimizing the reproduction of the herd in dairy cattle breeding. With the increase in the value of milk yield in modern cows up to 8–10 thousand kg of milk and more, their reproductive abilities deteriorate.

Objective: identification and characterization of associations of fertility indicators, their relationship, dependence on the level of milk yield in Ayrshire cows.

Materials and methods. The research was held on cows of the Ayrshire breed of the breeding plant «Megrega» (Republic of Karelia). The average milk yield per cow is over 9000 kg of milk per year. Fertility indicators were taken into account for 5 years according to 3866 lactation data. The interrelations of these indicators and their associations with the value of milk yield were analyzed.

Results. The age of the cows did not significantly affect on the fertility parameters, which were almost the same from the first to the fifth calving. An increase in the milk yield during the current lactation had a significant worsening effect on reproductive characteristics. The increase in milk yield from 5000 kg to 10000 kg and more was accompanied by an increase in their the indifference period (IP) by 38.4; the period of insemination (PI) – by 50.5; the service period (SP) – by 88.9 days; number of inseminations per conception – conception index (CI) – from 1.25 to 2.27; early embryonic death (EED) – from 3.1 to 13.3 % (P<0.001); fertilization from the first insemination – conception rate (CR) decreased from 78.1 to 33.6 %. The period from calving to the first insemination plays a special role among all fertility indicators. The best fertility rates were recorded in cows with an indifferent period of 100–120 days. A positive correlation was established between milk yield and IP (r = + 0.11–0.18, Р<0.001).

Conclusions. The obtained results can be used in further research on the development of breeding indices, the selection of which can provide a high genetic trend in milk yield while maintaining and developing progressive fertility of dairy cows.
Study of immune mechanisms in liver tissues and blood plasma of rats against the background of loading with plant extracts and induced oxidative stress
Authors: Pavlova O. , Gulenko O. , Gromova D. , Kuzina E.
Published: June 2024

Pathologies of the hepatobiliary system occupy a significant share in the total structure of diseases. Morphological changes that develop in the liver during its toxic damage are based on cytolysis of hepatocytes. Metabolic disorders arising from exposure to tetrachloromethane may alter the production of anti-inflammatory and anti-inflammatory cytokines by cells of the immune system. The aim of our study was to investigate reparative processes and immune mechanisms in rat liver tissues against the background of loading with aqueous extracts of blackberry and common sawfly and induced oxidative stress.

Materials and methods. 120 rats were used in the experiment. According to group affiliation animals received aqueous extracts of common and blackberry in a dose of 50 mg/100g of animal weight, 1.5 ml daily for 30 days, and animals of the control group received distilled water in the same regime. Starting from 30 days of the experiment, rats were injected with tetrachloromethane oil solution at a dose of 2 g/kg of animal weight in parallel with the administration of plant extracts for 6 days. On the 37th day of the experiment, blood was taken from the animals and then killed according to ethical standards. Histological preparations were made from liver tissues and the number of sinusoidal cells was counted. The content of cytokines in rat liver homogenates and blood plasma was determined by enzyme-linked immunosorbent assay using a Lazurite Automated ELISA System.

Results. In case of oxidative stress in blood plasma there is an increased production of proinflammatory cytokine TNFα and suppression of IL-10 production, while the concentration of proinflammatory cytokines IL-6 and IL-18 does not change significantly. At the same time, in response to diffuse toxic liver damage and oxidative stress in liver tissues there is an increase in the concentration of cytokines IL- 1α, IL-18, TNFα, IL-10 and a decrease in the concentration of IL-6, IFNγ, TGF-β. Increased production of IL-1α and IL-18 in liver tissues seems to trigger local inflammation by increasing the levels of cytokines such as TNFα, IL-6. The increased concentration of anti-inflammatory cytokine IL-10 confirms the key role of this mediator in the regulation of immune response and its ability to suppress the secretion of pro-inflammatory cytokines TNFα and IL-6. Conclusion. The aqueous extracts of fir and blackberry modulate to different degrees the functional state of sinusoidal cells in the early periods of toxic exposure to tetrachloromethane, which contributes to the early resolution of the inflammatory process. Exposure of aqueous extracts of fir and blackberry to sinusoidal cells changes the production of regulatory factors, which compensates the speed of recovery processes after toxic exposure.
DNA fragmentation in spermatozoa of mammals and methods of its investigation (review)
Authors: Shubina M. , Korochkina E.
Published: June 2024

Purpose: systematization and analysis of scientific information on DNA fragmentation of spermatozoa of farm animals and methods of its research.

Not long ago, one of the factors that negatively affects the fertility of male producers was discovered - fragmentation of sperm DNA. Numerous studies have established that DNA fragmentation is the breaking of DNA strands into pieces. According to Agarval A. (2003), sperm DNA fragmentation is the most common disorder of sperm ultrastructure. According to Baumber J. et al. (2003) determination of sperm DNA fragmentation is currently one of the modern methods for assessing sperm quality. Numerous studies have generated a pool of data on factors causing DNA fragmentation in sperm. Thus, Baumber J. et al. (2003) in their studies indicates that the cause of DNA fragmentation may be problems with chromatin remodeling, apoptosis and oxidative processes in sperm. Research conducted by Aboneev V.V. with coauthor. (2021) found that in severe forms of pathozoospermia, the number of sperm with fragmented DNA is higher than in less severe disorders of spermatogenesis [24]. The appearance of abnormal and inactive sperm in the ejaculate is one of the indirect markers of an increase in the index of DNA fragmentation in sperm, which negatively affects fertilizing ability of sperm. In this regard, the study of sperm DNA fragmentation is an effective diagnostic method for determining fertility. Considering some pathophysiological aspects leading to DNA fragmentation, determining the index of this process a priori cannot be routine. Currently, such high-precision methods as TTUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) — marking the ends of a broken molecule, SSCSA (Sperm Chromatin Structure Assay) — study of sperm chromatin dispersion, Comet (Single-cell gel electrophoresis assay, Cometassay) — capable of identifying breaks in single cells, SCD (Sperm Chromatin Dis) — are actively used. persiontest ) — chromatin dispersion test, etc.
The New Ethics of Neuromodulation with Transcranial Magnetic Stimulation: A Critical Appraisal
Authors: Noda Yoshihiro
Published: June 2024

With over 16 years of experience in clinical, research, and educational activities related to transcranial magnetic stimulation (TMS), I have written this article exploring the ethical dimensions of TMS. This article aims to provide valuable and informative content for those unfamiliar with TMS as well as those just starting in the field. Specifically, this article elaborates on four principles of medical ethics, including those applicable to TMS therapy, the disparity between public medical insurance coverage and medical indications in private practice for TMS therapy, and issues concerning research ethics in practice. I also provide recommendations regarding roles and strategies for adoption by academia and those in this field dedicated to making TMS therapy accessible to a larger patient population in a suitable manner. Lastly, it is my hope that this article will serve as a contemporary “Ethics of TMS Neuromodulation”, resonating with the inherent human pursuit of “truth, goodness, and beauty” for a sound mind and spirit.
Advancing Competitive Positioning in The Photovoltaic Module Market with System Thinking: A Case of PT. Indonesia Solar Global
Authors: Ahmad Zaeny , Putro Utomo Sarjono
Published: June 2024

Facing intense global competition and evolving regulatory challenges, the photovoltaic (PV) module market demands innovative strategies for competitive positioning, which this study addresses by applying systems thinking to uncover and analyze the complex interdependencies within the industry. Utilizing qualitative methods, the study engages key stakeholders through semi-structured interviews and employs Causal Loop Diagrams (CLDs) to ensure a rigorous and reliable analysis of the strategic and operational factors impacting PT. Indonesia Solar Global (ISG) within the PV module market. This study introduces a novel application of systems thinking to the photovoltaic module market, revealing how it can strategically enhance competitive positioning and operational efficiency, thus offering significant theoretical and practical contributions to the field of strategic management within renewable energy sectors. The findings reveal those strategic applications of systems thinking enable ISG to navigate complex market dynamics effectively, optimizing production efficiencies and enhancing competitive strategies against global competitors. This study not only addresses ISG's immediate challenges but also contributes to the broader discourse on strategic management within the renewable energy sector, showcasing the practical application of systems thinking in resolving industry-specific issues.
Overview of actual approaches to the municipal waste utilization: historical analysis
Authors: Mekhdizade Sabukhi Knyaz
Published: June 2024

This paper reports on some actual approaches to manage the problem of municipal waste utilization over the world. The author also analyzes future trends in this sphere.