bluuebunny/crossref_metadata_2025 huggingface dataset:
Macroeconomics
Authors:   Kazan Federal University, Abdullin Ildar , Ignatjeva Oksana ,   Kazan Federal University, Mustafin Askar ,   Kazan Federal University, Gonos Jaroslav
Published: August 2022

The textbook “Macroeconomics” is recommended for undergraduate and graduate students of all fields of study of Kazan (Volga region) Federal University, as well as for the use in the educational process by students of various fields in educational institutions of higher education, including a wide range of readers. The textbook can be helpful for scientists and managers of various levels of government interested in the problems of Macroeconomics. The textbook discusses the main topics of the course “Macroeconomics” in accordance with the Federal State Educational Standards for Higher Education of the new generation. The structure of the textbook allows not only to master the theoretical knowledge of the course “Macroeconomics”, but also to acquire the necessary practical skills for self-study. Each chapter covers the most important macroeconomic issues, contains terms and definitions, as well as review questions for better mastering the course.
Süperkapasitör performansını artırmak için grafitik karbon nitrür /grafen hibrit yapılarının kullanılması
Authors: SERT Buse , HARPUTLU Ersan
Published: August 2022

Uygun morfolojiye ve mükemmel iletkenliğe sahip yüksek verimli, düşük maliyetli hibrit nanoyapılar tasarlamak, elektrokimyasal depolama cihazlarında kullanılan elektrotlar için umut vericidir. Bu çalışma, süperkapasitör (SK) uygulamaları için grafitik karbon nitrür (g-C3N4) ve indirgenmiş grafen oksit hidrojel (rGOH) yapılarından oluşan üç boyutlu (3B) hibrit yapının üretimi ve elektrokimyasal çalışmalardan elde edilen sonuçları içermektedir. Bilindiği üzere, süperkapasitörde spesifik kapasitans miktarının artırılması yapıda kullanılan elektrot-elektrolit arasındaki temas yüzeyi ile doğru orantılıdır. Bu yüzden, rGOH yapısının yüksek yüzey alanı ve termal stabiliteye sahip olması, g-C3N4‘ün de süperkapasitörlerde elektrokimyasal aktiviteyi arttırmasından dolayı, mevcut yapılar bir araya getirilerek elde edilen elektrotun spesifik kapasitans değeri ölçülmüştür. Süperkapasitör olarak kullanılacak bu elektrotun üretilmesiyle, yüksek spesifik kapasitans değeri elde edilmiştir. Elektrokimyasal çalışmalar sonucunda, g-C3N4@rGOH hibrit yapısının 5 mVs-1 tarama hızında 157.4 F/g yüksek kapasitans değeri elde edilmiştir. Ayrıca 1000 döngüde %112’lik benzersiz bir döngüsel stabilite performansı sergilemiştir.
Virtual Reality in Festivals: A Systematic Literature Review and Implications for Consumer Research
Authors: Lee Daisy , Ng Peggy M.L. , Wut Tai Ming
Published: August 2022

Technological advancements in virtual reality have influenced festivalgoers, performers, and festival organizers. Due to the COVID-19 pandemic, organizers of cultural and tourism festivals have sought to deliver festivals online using virtual reality to provide an immersive experience from home. However, despite growing interest in virtual reality for festivals, there is no current systematic review to synthesize knowledge from academic papers within the festival context. This paper aims to provide a structured understanding of extant virtual reality research regarding festivals by using a systematic literature review. After a comprehensive review of extant literature from major databases, 19 relevant articles were extracted and synthesized according to the types, venues, roles, and objectives of the virtual reality applications. This study is the first systematic literature review to examine the current landscape of consumer research on virtual reality in festivals. Our results show that the limited numbers of extant literature concerning virtual reality in festivals indicates that this is an important yet significantly under-researched topic for future research. Current literature on virtual reality in festival contexts also lacks an in-depth understanding of consumer engagement and experiences. This paper recommends incorporating the application of theory and robust consumer research methods into future virtual festival research. Doi: 10.28991/ESJ-2022-06-05-016 Full Text: PDF
Social skills and behavior autism spectrum disorder during covid-19 Pandemic
Authors: Mujahid Imam
Published: August 2022

The research aims to describe the social development and behavior of autistic children and find ways to develop the social skills and behavior of autistic children during the COVID-19 pandemic. The research method is qualitative research. The data ware collected using interviews, documentation studies, and observations on parents and special assistant teachers for children with autism spectrum disorders of primary and secondary school age. Check the validity of the data used source triangulation. The results showed that autistic children during this pandemic experienced a decline in behavioral, social, and communication aspects. The method that is considered effective in overcoming this is by using daily activities for the development of social skills and behavior. The components of these activities are 1). Creating communication using verbal and visual language. 2). Develop new routines by forming new habits. 3). Monitor the mental development and physical health of children. 4). Establish regular collaboration and communication with schools. 5). Utilize existing human resources at home. 6). Literacy practice in children. 7). Always involve children in daily activities at home. 8). Encouraging children's social relations to connect with friends and teachers by utilizing technology media.
Motivasi belajar sejarah kebudayaan islam (MBSKI) scale: mengukur sifat psikometri dengan rasch measurement tool (RMT)
Authors: Yasnel Yasnel , Sariah Sariah , Susiba Susiba , Syafi'ah Syafi'ah , Zatrahadi M. Fahli , Darmawati Darmawati , Istiqomah Istiqomah
Published: August 2022

Tujuan pada penelitian ini adalah untuk memvalidasi dengan mengukur sifat psikometri Motivasi Belajar Sejarah Kebudayaan Islam (MBSK) scale. Penelitian menggunakan metode survei yang melibatkan 124 siswa MTs yang terdiri dari 46 (37.1%) laki-laki dan 78 (62.9%) perempuan. Dalam penelitian ini Model Rasch digunakan untuk mengukur sifat psikometri, peneliti menggunakan program komputer WINSTEP4.7.0 untuk melakukan model pengukuran rasch, analisis yang dilakukan adalah mengukur objective measurement, reliability and separation index, threshold: partial credit model, estimation validity through principal component analysis, person measure, dan item measure. Hasil penelitian ini menunjukkan MBSKI scale memenuhi aspek pengukuran psikometrik, dengan nilai reliabilitas item sangat bagus (.97) dan reliabilitas person yang baik (.85) untuk kondisi pengukuran motivasi belajar sejarah kebudayaan islam. Selain itu, item-item pada MBSKI scale sudah mewakili untuk mengukur motivasi belajar Sejarah Kebudayaan Islam, dikonfirmasi oleh nilai raw dari varians 34.4%. Selanjutnya, MBSKI scale memiliki validitas yang stabil dan dapat digunakan untuk mengukur semangat dalam belajar sejarah kebudayaan islam, gigih menghadapi kesulitan belajar sejarah kebudayaan islam, penunjang untuk mempelajari mata pelajaran keagamaan, penunjang untuk mempelajari ilmu agama, memiliki hasil belajar yang baik dalam mata pelajaran sejarah kebudayaan islam, memahami sejarah kebudayaan islam, ketertarikan belajar sejarah kebudayaan islam dan senang belajar sejarah kebudayaan islam.
Identificación preliminar de maderas de pinos mexicanos mediante espectroscopía ATR-FTIR
Authors: Contreras Quiñones Héctor Jesús , Lizardo Aguayo David Alejandro , Andrade Ortega Jesús Angel , Ramírez Barragán Carlos Alberto , Díaz Ramos Sara Gabriela , Rodríguez Rivas Antonio
Published: August 2022

Una gran variedad de especies del género Pinus están ampliamente distribuidas en México, y son de gran importancia comercial, por lo que la identificación apropiada de su madera es importante. Esta no es una labor sencilla, debido a las características anatómicas y químicas de los pinos; por este motivo, se investigó el potencial que tiene para esta tarea una base de datos computarizada de espectros ATR-FTIR de madera (espectroteca). Los espectros de las maderas tienen las suficientes diferencias para implementar un proceso de identificación por comparación espectral. La espectroteca se creó utilizando tablillas de la xilóteca del Departamento de Madera, Celulosa y Papel (Universidad de Guadalajara), que se han identificado de manera rigurosa. Se obtuvieron los espectros de nueve especies de pinos (Pinus arizonica, P. ayacahuite, P. devoniana, P. douglasiana, P. durangensis, P. oocarpa, P. patula, P. pringlei y P. pseudostrobus), de tres lugares diferentes, por lo que la espectroteca cuenta con 27 espectros. Para determinar la viabilidad del método, se analizaron otras tablillas de la xilóteca, diferentes a las de la espectroteca, de cinco especies (P. ayacahuite, P. devoniana, P. oocarpa, P. pseudostrobus y Cupressus arizonica), obteniendo en tres casos las correlaciones más altas para las especies correctas, y un segundo lugar para las otras dos. El uso de una espectroteca es un método rápido, que puede ayudar en la identificación de una madera y establecer su origen. La técnica podría mejorarse mediante el desarrollo de un tratamiento espectral y estadístico que considere las particularidades de los materiales lignocelulósicos.
Ecuaciones para estimar biomasa de candelilla (Euphorbia antisyphilitica Zucc) en Chihuahua, México
Authors: Maldonado-Ortíz Margarito , López Serrano Pablito Marcelo , Valdez-Cepeda Ricardo David , Mata-González Ricardo , García-González Fabián , Martínez-Salvador Martín
Published: August 2022

La candelilla (Euphorbia antisyphilitica Zuuc.) es un arbusto que crece de manera natural en las zonas áridas del norte de México. Esta especie se cosecha para extraer una cera que produce como respuesta al estrés hídrico. Para autorizar la cosecha de las plantas es necesario realizar estimaciones indirectas de su biomasa utilizando ecuaciones predictivas. El objetivo de este estudio fue generar ecuaciones alométricas para estimar el peso verde de candelilla en el noreste de Chihuahua, México. Se realizó un muestro selectivo y destructivo de 200 plantas de candelilla, las cuales se colectaron en ejidos con programas de manejo forestal vigente. Para ajustar la mejor ecuación se probaron cuatro modelos y diferentes combinaciones de variables (predictoras vs biomasa de la planta). Todas las variables se transformaron a escala logarítmica. Se seleccionaron los modelos de Schumacher Hall y Spurr en su forma logarítmica, con el uso de las variables diámetro de copa y diámetro de la base de la planta, ya que fueron los que presentaron los mejores ajustes estadísticos (R2adj =0.84), mientras que la RCME (raíz del cuadrado medio del error) fue inferior a 0.450 y los parámetros de las dos ecuaciones fueron significativos (p<0.0001). Las dos ecuaciones seleccionadas presentaron normalidad, homogeneidad de varianzas e inexistencia de colinealidad entre variables. Estas ecuaciones presentan confiabilidad para estimar biomasa de candelilla en el noreste del estado de Chihuahua bajo los criterios y parámetros descritos en este estudio y son una herramienta útil para la elaboración de estudios técnicos y programas de manejo de la candelilla en México.
Características morfométricas, reproductivas y germinativas del germoplasma de Swietenia humilis Zucc. en Guerrero
Authors: Calixto Valencia Celi Gloria , Cetina Alcalá Victor Manuel , Ramírez Herrera Carlos , López López Miguel Ángel , Ángeles Pérez Gregorio , Equihua Martínez Armando , Basave Villalobos Erickson
Published: August 2022

Swietenia humilis es una especie tropical de madera preciosa amenazada por la fragmentación de su hábitat debido a deforestación y cambios en el uso del suelo. Por lo tanto, es esencial caracterizar el germoplasma de las poblaciones naturales para definir estrategias de conservación, propagación y reforestación. Se analizaron características morfométricas y reproductivas de frutos, así como la viabilidad y capacidad germinativa de semillas de S. humilis de seis sitios en el estado de Guerrero, México: Zacapalco, Buenavista, Santa Fe Tepetlapa, Cieneguillas, Tuxpan y Arcelia. En cada sitio, se caracterizó el tamaño y peso de frutos y semillas, el número y proporción de semillas desarrolladas y no desarrolladas, la viabilidad y la capacidad germinativa. Para cada variable se hizo un análisis de varianza no paramétrico Kruskal-Wallis y una comparación de medias. Las características de los frutos y semillas variaron entre los sitios evaluados. Cieneguillas presentó menor tamaño de frutos, peso y número de semillas. Tuxpan registró la mayor cantidad de semillas, pero una proporción alta fueron no desarrolladas. Para Santa Fe se obtuvo la mayor cantidad de semillas desarrolladas, aunque las más pesadas, viables, vigorosas y con mayor capacidad germinativa fueron las de Zacapalco. Los árboles de S. humilis de los rodales naturales analizados en el estado de Guerrero producen frutos y semillas que difieren en sus características morfométricas y reproductivas, así como en su capacidad germinativa.
Pengembangan Perangkat Pembelajaran Berbasis Multiple Intelligences untuk Meningkatkan Motivasi dan Hasil Belajar Fisika Peserta Didik SMA
Authors: Destari Siti Ismi , Sahidu Hairunnisyah , Gunada I Wayan
Published: August 2022

This research aims to develop a learning device based on the multiple intelligences that can be valid, practical, and effective to increase students' motivation and learning achievement in physics. In this research, the learning device was developed in form of a syllabus, teaching materials, lesson plans, student worksheets, and test instruments for learning achievement. This was a research and development (R&D) with a procedural development model, named the 4D model (define, design, develop, and disseminate). The average percentage of learning device validation related to syllabus, teaching materials, lesson plans, student worksheets, and test instruments of learning achievement was 86.00%, 83.00%, 81.00%, 80.05%, and 82.50%. The practicality of the learning device was able to be seen in the percentage of learning implementation in every meeting, it was 79.60% and 75.65%, while the students’ responses toward the learning process and the student worksheets got an average percentage of 80.91% and 77.68%. The effectiveness of learning devices was proved by the increase in students' cognitive learning achievement calculated by the N-Gain equation, the results were obtained 0.63 for the medium category. The average percentage of students' learning motivation also increased from 67.56% to 75.17%. Based on these results, the learning device that was developed is valid, practical, and effective to use with some revisions.
Application of Newton’s laws using CD hovercraft
Authors: Adesunloro Gbenga Michael
Published: August 2022

Hovercrafts were constructed using a Compact Disk and Baloons to calculate linear and average displacement, speed and acceleration. The innovative concepts was used to promote learning of Astrophysics to 15 aspiring physics enthusiast to explain the Newton’s laws of Physics as it applies to the working principle of an hovercraft and training of astronauts
Birth of the girl-child in Nigeria society: Cultural implications
Authors: Amadi-Ali Beatrice O.
Published: August 2022

Culture is the way of life of a people. It includes everything people do and have as members of a society, such as knowledge, ideas, skills, beliefs, literature, philosophy, religions, language, among others. Culture represents the way of life of a group of people. Every child has the right to be born; right to survival and development; right to enjoy the best attainable state of physical, mental and spiritual health, irrespective of the sex of the child. Also, every child has the right to free, compulsory and universal education; and, every child who is in need of special attention and special protection measures has the right to such measures as is appropriate to his/her physical, social, economic, emotional and mental needs and under conditions which ensure his/her dignity, promote his/her self-reliance and active participation in the affairs of the community. This paper discussed some of the injustice infringed on the girl-child from birth through to her life as a woman. The paper discusses the denial of the girl-child’s right to be born; the girl-child discriminated after birth, the girl-child’s education and its cultural implications and, the girl and national development. It was concluded that the birth of a girl-child today is a blessing because no family, community or society can develop without women involved directly or indirectly. When a girl is born, a woman is born; and a nation is born. In the same vein, when a girl is trained, a woman is trained; and when a woman is trained, a nation is trained. Based on this conclusion, it was recommended among others that Nigerian society should appreciate the birth of girl-children; as well as welcome the western ideology in training or educating females.
Anti-diabetic efficacy of ethanol leaf extract of Hibiscus surrattensis (linn.) on alloxan -induced diabetic rats
Authors: Goddey O Oyomah  , Robert O Ogede  , Ayodeji P Awonegan
Published: August 2022

Diabetes is a chronic disease caused by insufficient insulin production or the inability of the body to use the insulin produced. Hibiscus surattensis L. is a plant species from the genus Hibiscus (Malvaceae), with leaves that has been used in traditional medicine to treat diabetes. The ethanol leaf extract of Hibiscus surattensis (Linn.), was evaluated for its anti-diabetic properties on alloxan-induced diabetic rats. The experimental design used was complete randomized type for all the studied parameters undertaken. The standard Qualitative and quantitative phytochemical screening of the plant extract gave positive test for saponins, alkaloids, flavonoids, phlabotanins, candiac glycoside and deoxysugar. Proximate analysis showed Moisture content (83.15 %), Crude liquid (1.4 %), Crude protein (1.75 %), Crude fibre (0.1%), Ash (13.46 %), Carbohydrate (0.14 %) and Calorie value (20.16 kcal). The medium lethal dose (LD50) was determined using intraperitoneal route which was calculated to be 4698.94 mg/kg. Animals in group 1; received 10mg/kg body weight/day of distilled water group 2; received 10 mg/kg of glibeniclamide, while group 3-5; received the low, medium and high doses of the plant extract. The anti-diabetic activities during acute and prolonged studies were investigated. Blood Glucose Level (BGL) was measured at intervals by using glucometer. The treatment was significant at (P = 0.05) causing reduction in BGL of the diabetic rats both in acute and prolong treatment. There were reductions in tissue degradation in treated diabetic rat compared to untreated rats
Perceptions of stem students on the theory of evolution
Authors: Mary Rose Fabila Santos  , Dennis Gamad Caballes
Published: August 2022

This study aimed to describe how the STEM students perceive the relationship between their beliefs about science and religion or Christian beliefs. The respondents of this study are the grade 12 students of Antipolo City Senior High School during the school year 2020-2021. A questionnaire was administered in two sections of grade 12 STEM students. The researcher also conducted interview from 15 selected STEM students. This qualitative method was used to examine the learning experiences and perceptions of students on the theory of evolution and creationism. The findings of this study show that STEM students viewed science and religion as different ways of understanding the world. Teachers should make a clear distinction between the roles of science and religion; the two need not be in conflict. Teachers that develop a depth of knowledge beyond what is actually expected of students will be able to confidently adjust instruction in response to students' needs and inquiries. Despite scientific evidence presented by scientists on the legitimacy of evolution, many people still adhere to their religious or Christian beliefs. The researcher recommends that each of us should have given much respect to people's different beliefs because of different cultures and traditions. The researcher also recommends that if someone feels that the theory of evolution contradicts his/her belief, he needs to be open-minded for an in-depth understanding and to weigh things right for the enlightenment of oneself. Science and religion may provide answers to our existence in different approaches but for the well-being of everyone."
Сalculation of the correction factor to the normative values of specific electric loads of multiple residential buildings Moscow and Moscow region
Authors: Soluyanov Yu. I. , Fedotov A. I. , Akhmetshin A. R.
Published: August 2022

THE PURPOSE. Reducing the cost of external electrical networks in the housing construction of multi-apartment residential buildings (MKD) in Moscow and the Moscow Region by substantiating the value of the correction factor to the standard values of specific electrical loads and developing appropriate amendments to SP 256.1325800.2016 “Electrical installations of residential and public buildings. Rules for design and installation. METHODS. The half-hour graphs of electrical loads installed directly at the objects under study were experimentally obtained from intelligent electricity metering devices. To process the measurement results, statistical methods for processing a large amount of data were applied. RESULTS. The article substantiates the relevance of the topic, analyzes the electrical loads of residential buildings in Moscow and the Moscow region, which confirmed the need to develop a correction factor, the value of which characterizes the difference between real and calculated values. Accepted for statistical processing are the results of measurements of electricity consumption in apartments per day with the maximum total electricity consumption of MKD. Based on the calculations performed, amendments were prepared to section 7 of SP 256.1325800.2016 “Electrical installations of residential and public buildings. Design and installation rules”, including clause 7.1.10. is set out in a new edition, and table 7.5a is formed. CONCLUSION. Based on the analysis of the calculated specific electrical loads of apartment buildings in Moscow and the Moscow region, the value of the correction factor for the city of Moscow and the Moscow region in relation to the MKD of standard projects, which amounted to 0.81, was justified, taking into account the margin. The use of a correction factor to determine the design load of a residential building will reduce costs in the construction of external electrical networks of residential buildings with a simultaneous increase in the efficiency of power transformers in Moscow and the Moscow Region.
Methodology and device for diagnostics of high-voltage insulators based on continuous recording of the spatial level of electromagnetic radiation of partial discharges
Authors: Galieva T. G. , Ivanov D. A. , Sadykov M. F. , Andreev N. K. , Khamidullin I. N.
Published: August 2022

THE PURPOSE. Development of diagnostic methods for high-voltage insulators in operation based on continuous recording of electromagnetic radiation. Hardware and software implementation of the device based on this technique. Carrying out experimental researches. METHODS. Received signal strength indicator measuring method of electromagnetic signals and method of determining the attenuation of electromagnetic radiation in space were used. RESULTS. The article describes relevance of the topic, considers various physical methods for registering partial discharges (PD) and their localization. Studies of the average signal level of defective and non-defective high-voltage insulators on load operation (10-15 kV) were carried out using the laboratory stand. An experiment was carried out to determine the space attenuation of a local signal from the PD. CONCLUSION. A technique for diagnosing high-voltage insulators during operation has been developed. This technique is based on continuous monitoring of electromagnetic radiation from partial discharges. Method for diagnosing high-voltage insulators makes it possible to monitor the insulation condition remotely and continuously.
Construction of a mathematical model of lamb wave propagation in a steel pipeline with a protective outer coating
Authors: Gaponenko S. O. , Kondratiev A. E. , Mustafina G. R.
Published: August 2022

THE PURPOSE. Adapt the method of measuring the propagation of Lamb waves in thin two-layer plates to the study of the dependence of the phase velocity on the technical condition of pipelines with a protective outer coating. To perform a modification of the numerical-analytical algorithm for measuring the thickness of the coating and areas of non-adhesion of materials in thin two-layer plates for vibroacoustic diagnostics of technical pipelines. To investigate the propagation of a symmetric Lamb wave in a steel pipeline with a protective outer coating. METHODS. To solve the problem of localizing damage to technical pipelines, traditional methods of non-destructive testing based on vibroacoustic diagnostics are considered. RESULTS. Work on the construction of a mathematical model of the dependence of the propagation of the phase velocity of the Lamb wave on the thickness of the object under study has been carried out. The numerical analysis of the measurements was carried out using the example of thin two-layer segments of pipelines. The presence of changes in the thickness of the pipeline is taken as the effect of material defects on the propagation parameters of the Lamb wave mode. CONCLUSION. A numerical-analytical method for calculating the propagation of a symmetric Lamb wave mode in a thin segment is presented. The dependence of the propagation velocity of Lamb waves on the segment thickness is demonstrated. Based on the described technique, it seems possible to estimate not only the thickness of the segment and the area of non-adhesion of the layers, but also the total area of the defective area. This will allow in the future to record the relative changes in the thickness of the walls of pipelines to determine changes in the physical properties of the material or the presence of a defect.
CHANGE OF MANAGEMENT FUNCTIONS AND ORGANIZATIONAL STRUCTURES DURING THE COVID – 19 PANDEMIC
Authors: KÖROĞLU Damla , SEMERCİÖZ Fatih
Published: August 2022

Tüm insanların sağlığını tehdit eden koronavirüs salgını (COVİD-19) nedeniyle, tüm dünyada ve ülkemizde örgütlerin iş yapış şekilleri zorunlu olarak değişmeye başlamıştır. Bu dönemde çalışanların nasıl yönetileceğine dair yol haritasının hazırlanması, motivasyon ve iş devamlılıklarının sağlanması, çıktıların kontrol edilmesi gibi süreçler yöneticilerin sorumluluğu altındadır. Bu bağlamda, bu çalışmada COVİD-19 pandemisi ile başlayan süreçte yöneticilerin sorumluluklarının nasıl değiştiği, yönetim ve organizasyon uygulamalarına nasıl devam ettikleri ve değişen çalışma koşullarıyla yönetim ve örgütlerin nasıl farklılaşacağına dair bulgulara yer verilmektedir. Araştırmanın amacı kapsamında katılımcılarını Türkiye’de farklı sektörlerde çalışan ve pandemi sürecinde uzaktan çalışma biçimini deneyimlemiş işletmelerin yöneticileri oluşturmaktadır. Nitel araştırma yaklaşımı ile yürütülen çalışmada içerik analizi yöntemi kullanılmıştır. Yarı yapılandırılmış görüşmelerden elde edilen verilerin analizi sonucunda “Dijitalleşmenin hızlanması”, “Operasyonel maliyetlerin ve operasyonlarının değişimi”, “Değişen sosyolojik ve psikolojik faktörler” ve “Örgütlerde yeni normal” temaları ortaya çıkmıştır. Bu temalar ışığında uzaktan çalışma döneminde yönetim faaliyetlerinin nasıl değiştiğine ve yeni çalışma normalinin nasıl olacağına dair bulgular elde edilmiştir
STUDI KINETIKA DEGRADASI LIMBAH ALKILBENZEN SULFONAT (ABS) DENGAN PROSES ELEKTRO FENTON
Authors: Fathoni Rif'an , Purwanto Purwanto
Published: August 2022

This study describes the effect of operating conditions such as weight ratio (H2O2/COD), the initial pH of waste and molar ratio fenton reagent (H2O2/Fe2+) to the degradation of waste alkylbenzene sulfonate (ABS). The degradation of ABS with the Electro Fenton process (E-Fenton) conducted in a laboratory scale batch reactor. The increasing doses of the weight ratio the production of hydroxil radicals will be increase and of course will increase the rate of organic degradation. Using a weight ratio that exceeds the theoretical calculations tend to decrease the degradation of ABS concentration. The weight ratio of 2,1 resulted in a decrease of ABS concentration, COD and BOD5 of 94,075%, 94,040%, 81,273%, respectively. Medium acidity (pH) is one of the most decisive factor of Electro-Fenton process, at a pH 3 yield degradation of ABS amounted 98,093%. ABS removal efficiency increased with the increase of ferrous ion dosage at fenton’s reagent molar ratio and reached highest of ABS concentration, COD and BOD5 of 99,05%, 96,64%, and 91,18%, respectively, for the operating time for 60 minutes. A kinetic study was carried out using first order reaction kinetics model. Temperature changes that occur when the research generates activation energy of 80,811 J/K.mol through the Arrhenius equation. Keywords: alkylbenzene sulfonat, arrhenius, electro fenton, fenton reagent, kinetic study
Klasifikasi Identitas Dengan Citra Telapak Tangan Menggunakan Convolutional Neural Network (CNN)
Authors: Wita Deviana Sely , Liliana Dewi Yanti
Published: August 2022

Biometrik merupakan ilmu yang membahas mengenai pengenalan identitas seseorang. Pengenalan seseorang dapat dilakukan melalui media suara, gambar, dan tulisan. Banyak sekali teknologi yang membutuhkan informasi otentik mengenai identitas seseorang. Dalam penelitian ini, menggunakan telapak tangan sebagai objek penelitian dikarenakan telapak tangan memiliki fitur unik yang berbeda pada setiap individu. Selain fitur unik, luas permukaan telapak tangan menjadi salah satu pertimbangan penulis dalam menentukan objek penelitian. Luas permukaan telapak tangan lebih besar jika dibandingkan dengan luas permukaan salah satu jari. Dengan menggunakan dataset sebanyak 26 label dimana citra telapak tangan yang masing-masing identitasnya dinamakan label A sampai label Z. Penelitian ini menggunakan metode deep learning yaitu CNN (Convolutional Neural Network) untuk mengklasifikasi masing-masing identitas pada citra telapak tangan. Hasil pengujian klasifikasi identitas dengan citra telapak tangan ini menunjukkan bahwa pada masing-masing label dapat diklasifikasikan dengan akurasi 98%.
Diagnosis Dan Penanganan Penyakit Tanaman Karet Pada Sistem Pakar Berbasis Penalaran Menggunakan Metode Teorema Bayes
Authors: B Muslimin , Junirianto Eko , Suswanto Suswanto , Nurhuda Asep
Published: August 2022

Tanaman karet adalah jenis tanaman tahunan yang tumbuh dan menghasilkan produksi dalam jangka waktu lama. Hasil panen tanaman karet bersumber dari batang yang memiliki nilai jual yang cukup tinggi. Salah satu penghambat pertumbuhan dan produksi tanaman karet di wilayah pedesaan samarinda dipengaruhi oleh kurangnya pemahaman, serta keterlibatan pakar bidang pertanian dalam melakukan diagnosis dan penanganan penyakit secara berkala sehingga menimbulkan kerugian bagi petani. Penelitian ini bertujuan untuk merancang dan membangun aplikasi pertanian berbasis cerdas sub bidang sistem pakar dalam melakukan diagnosis, evaluasi, serta solusi penanganan penyakit pada tanaman karet. Implementasi dan penerapan sistem pakar dengan pendekatan berbasis penalaran menggunakan metode teorema bayes dapat menghasilkan sebuah proses diagnosis . Berdasarkan pengujian yang dilakukan telah diperoleh dengan tingkat akurasi 82%. Dengan adanya implementasi sistem pakar dan proses penalaran menggunakan metode teorema bayes maka dapat membantu dalam monitoring pertumbuhan tanaman karet, sehingga dapat meningkatkan hasil panen bagi petani untuk periode jangka panjang.
Investigation of the Mechanical Properties of St52 and S460MC Steels by Gas Welding
Authors: OKUROĞULLARI Yiğit , ÇAVUŞOĞLU Oktay , TUTAR Mümin , AYDIN Hakan
Published: August 2022

In this study, the effect of the changes in welding parameters on the tensile strength, which is one of the mechanical properties of the steels, was investigated in the robotic gas arc welding method applied to St52 and S460MC steels, which are widely used in the industry. As a result of the experiments carried out within the scope of the study, it was aimed to determine the optimum parameter values for the MAG welding method. St52 and S460MC materials were used in the experiments. An experimental design was created in order to carry out the experiments in the most accurate way. Parameter val-ues are placed in this created experimental design. As a result of the experiments per-formed according to the created the experimental design, the optimum parameter val-ues were examined, welding processes were applied with the selected values, and the improvements in the welding quality were determined by subjecting the welded samples to the tensile test. The optimum welding parameters providing the best mechanical properties were 25 V, 7 mm/sec and 13 mm/sec for the arc voltage, wire feed speed and welding speed, respectively.
Effect of Different Conical Punch Angle Geometries and the Initial Hole Diameters on the Hole Expansion Ratio of DP steels
Authors: ŞEN Nuri , CİVEK Tolgahan , BEKTAŞ Necati
Published: August 2022

In the recent decade, advanced high strength steels (AHSS) have gained a great popularity in the automotive manufacturing industries due to their high strength to weight ratio, which significantly improves the safety of the manufactured automobiles while reducing the weight and thus, enabling to improve the fuel efficiency. However, it is known that some types of AHSSs, especially DP steels, are highly susceptible to edge cracking behaviour during the forming operations. Edge cracking behaviour is generally investigated with a 600 conical punch as suggested by the ISO 16630 standard. However, in this study, to observe the behaviour of edge cracking ability of DP steels under different conical punch angles for different initial hole diameters, hole expansion tests have been performed with conical punches with three different angles (300 ,600, 900) for three different initial hole diameters (14, 16, 18 mm). The results have shown that the hole expansion ratio (HER) does not differ considerably with the variation of the conical punch angle and the initial hole diameter due to low fracture strain of DP steels observed after hole expansion tests. The major factor for the edge stretching ability of DP steels have been observed to be microstructure rather than geometrical factors such as conical punch angles.
Pragmatic to Prevalent: Digital Identities for Clinical Access Author Discussion with Medilinker Project Team
Authors: Harrell, PhD Daniel Toshio , Khurshid, PhD Anjum , Abdul-Moheeth MD Mustafa , Wright, Moderator Ryan
Published: August 2022

BHTY authors Daniel Toshio Harrell, PhD, Mustafa Abdul-Moheeth MD, and Anjum Khurshid, MD, PhD and podcast host Ryan Wright, BHTY Missouri Ambassador, discuss the Medilinker project.  

Speakers discuss the scope of the two papers published in BHTY, choice of blockchain use, intention of the project and future growth for this and similar projects. Discover the growing ecosystem of distributed ledger technologies in the healthcare industry and the unique ways to prove concepts in a field where change is slow and graduated in achieving milestones.

The articles may be accessed below. Readers may ersue the entire ConV2X 2021 Original Research Proceedings Issue here.

Articles discussed:

1. Technical Design and Development of a Self-Sovereign Identity Management Platform for Patient-Centric Healthcare Using Blockchain Technology,  DOI: https://doi.org/10.30953/bhty.v5.196

2. Improving Transitions of Care: Designing a Blockchain Application for Patient Identity Management, DOI: https://doi.org/10.30953/bhty.v5.200
Bio NFTs and Digital Liquidity
Authors: Uribe, CEO Daniel , Wright Ryan
Published: August 2022

The fireside chat features an in-depth discussion with the founder of Genobank.io regarding the future of NFT use in healthcare. NFTs are explored as a means to autonomy in health information. Citizens are slowly understanding the (digital) liquidity of thier confidential data to institutions such as payors and health systems.

Enterprise blockchain in healthcare is slowly maturing and many institutions are adopting the tools for transormation.

Questions to resolve are autonomous (asset) ownership of data, or paying a third party to catalogue an individual's data.
Atenção secundária em Odontologia e a articulação no processo de referência na Rede de Atenção em Saúde Bucal
Authors: Azevedo Julia Schlichting , Martins Aydée Dupret Leite , Silva Heverton Siqueira , Costa Willian Silveira da , Buffon Marilene da Cruz Magalhães , Pizzatto Eduardo
Published: August 2022

Os residentes do Programa de Residência Multiprofissional em Saúde da Família (PRMSF) da Universidade Federal do Paraná (UFPR) atuam em um município da região Sul, sendo a Odontologia uma das áreas que compõem o programa. Esses possuem campo prático diversificado, estando inseridos tanto na Atenção Primária à Saúde (APS), primeiro nível de atenção e coordenadora do cuidado, quanto na atenção secundária, atuando no serviço de cirurgia oral menor, inserido no Centro de Especialidades de Piraquara (CESP) no Paraná, uma vez que não há possibilidade de estruturação de um Centro de Especialidades Odontológicas (CEO). Dessa forma, é possível acompanhar o processo de referência e contra referência dos pacientes no serviço. Essa realidade também é observada em outras regiões do Brasil, consequência da falta de condições logísticas, estruturais e de recursos humanos, o que demanda aprimoramento do planejamento, orientação e consolidação de políticas públicas em saúde bucal. O objetivo desse estudo é relatar a experiência dos residentes cirurgiões-dentistas do PRMSF da UFPR em um Centro de Especialidades de um município da região metropolitana de Curitiba, capital do estado do Paraná, que mesmo não se qualificando nos parâmetros propostos pelo Ministério da Saúde brasileiro para implementação do CEO, apresentou a iniciativa de incorporar especialidades odontológicas mais urgentes para a população. Portanto, é importante o enfrentamento de problemas específicos, como ausência de levantamento epidemiológico municipal, tempo de espera, distância geográfica entre os serviços e comunicação entre profissionais da atenção básica e especializada.
Pengembangan Aplikasi Giat Bergerak sebagai Desain Pembelajaran Abad 21 bagi Anak Usia 4-6 Tahun
Authors: Nurazka Rika Ar , Fitriasari Novi Sofia , Widjayatri Rr. Deni
Published: August 2022

Peran penting teknologi menjadi kunci keberhasilan desain pembelajaran abad 21 yang mengintegrasikan keterampilan dalam pengajaran. Penelitian ini bertujuan untuk mengembangkan kembali aplikasi Giat Bergerak agar menjadi salah satu fasilitasi pembelajaran abad 21 dengan mengintegrasikan keterampilan 4C (berpikir kritis, kreativitas, komunikasi, dan kolaborasi) khususnya pada aspek perkembangan motorik anak usia 4-6 tahun. Metode dalam penelitian ini ialah desain dan pengembangan (DD) yang berfokus pada 4 fase yakni analisis, desain, pengembangan, dan evaluasi. Hasil pengembangan mendapat validasi dari ahli media dan ahli materi serta penilaian pendidik, perolehan nilai rata-rata 4.5 dengan persentase 89% memasuki kategori sangat baik. Berdasarkan hasil tersebut kualitas konten dalam aplikasi Giat Bergerak telah meningkat dari versi sebelumnya. Saran penggunaan aplikasi tetap dalam pengawasan orang dewasa dan perlu menetapkan batasan screen time. Implikasi bagi guru dalam penerapan aplikasi Giat Bergerak ialah membuat desain ulang pembelajaran yang lebih bermakna bagi anak dengan mengintegrasikan keterampilan 4C sebagai desain pembelajaran abad 21.
Estimating Heterogeneous Treatment Effects Within Latent Class Multilevel Models: A Bayesian Approach
Authors: Lyu Weicong , Kim Jee-Seon , Suk Youmi
Published: August 2022

This article presents a latent class model for multilevel data to identify latent subgroups and estimate heterogeneous treatment effects. Unlike sequential approaches that partition data first and then estimate average treatment effects (ATEs) within classes, we employ a Bayesian procedure to jointly estimate mixing probability, selection, and outcome models so that misclassification does not obstruct estimation of treatment effects. Simulation demonstrates that the proposed method finds the correct number of latent classes, estimates class-specific treatment effects well, and provides proper posterior standard deviations and credible intervals of ATEs. We apply this method to Trends in International Mathematics and Science Study data to investigate the effects of private science lessons on achievement scores and then find two latent classes, one with zero ATE and the other with positive ATE.
HISTORICAL COMPONENTS OF SCIENTIFIC POTENTIAL FORMATION OF THE INSTITUTE OF ANIMAL BREEDING AND GENETICS NAMED AFTER M.V.ZUBETS OF NAAS
Authors: Hladii M. V. , Vdovychenko Yu. V. , Kovtun S. I. , Polupan Yu. P. , Borodai I. S. , Kostenko O. I.
Published: August 2022

The purpose of the article is to highlight the main organizational stages of establishment and creative searches of the zootechnical department of the Kiev Regional Agricultural Experimental Station, as well as the research units created on its basis as the forerunners of the formation of the scientific potential of the Institute of Animal Breeding and Genetics named after M.V.Zubets of NAAS. Research methods – general scientific (analysis, synthesis, classification), special historical (problem-chronological, comparative-historical), source study. The scientific novelty of the article lies in the generalization of the creative achievements of the scientists of the zootechnical department, which have found wide practical application in the field of animal husbandry in the USSR and the Ukrainian SSR. It is shown that their efforts have developed regional systems and methods of selection and breeding work based on the use of methods of intrabreeding selection and substantiated the effectiveness of interbreeding as an effective way of farm animal pedigree improvement. The chemical composition and nutritional value of forages from the Right-Bank Forest-Steppe of the Ukrainian SSR have determined, and methods for increasing its productive action have proposed. The fodder base of animal husbandry based on the introduction of a green conveyor and technologies for ensiling fodder crops has intensified. Norms and rations for feeding and fattening different types and age groups of farm animals have developed. It is proved that the scientists of the zootechnical department and its successors made a significant contribution to the development of the methodological foundations of zootechnical science, which affected the development of effective methods for assessing the breeding value of animals, the method of simplified grading of livestock, the method of introductory crossing of breeds, ways of directed breeding of animals and stimulation of the development of the nutritional function and metabolism of young animals, methods of increasing the efficiency of feed, methods for determining the fat content in milk and wool, etc.
Bleeding Complications in Patients Undergoing Percutaneous Coronary Intervention
Authors: Galli Mattia , Laborante Renzo , Andreotti Felicita , Vergallo Rocco , Montone Rocco Antonio , Iaconelli Antonio , Trani Carlo , Burzotta Francesco , Crea Filippo , D’Amario Domenico
Published: August 2022

Percutaneous coronary intervention (PCI) is considered a relatively safe procedure associated with low rates of complications, but is inevitably associated with short and mid-to-long term increased bleeding risk. Besides the short term risk associated with the arterial access to perform PCI, enhanced bleeding risk persists for several months, given the need for antithrombotic therapy to prevent procedure-related thrombotic complications as well as ischemic recurrences. Bleeding is a powerful harbinger of adverse outcomes. This awareness has fuelled intense research on bleeding reduction strategies, including new PCI devices and techniques as well as new medications and antithrombotic regimens. We here review the mechanisms and prevalence of bleeding in PCI patients, discuss the available evidence from a practical point of view, and explore future perspectives on how to treat and prevent bleeding complications in these patients.
Association of Arterial Stiffness Indices with Framingham Cardiovascular Disease Risk Score
Authors: Jin Lin , Tong LanYue , Shen CuiQin , Du LianFang , Mao JianYing , Liu LiPing , Li ZhaoJun
Published: August 2022

Purpose: The new non-invasive arterial stiffness indices, arterial velocity pulse index (AVI) and arterial pressure volume index (API) are known to be associated with cardiovascular disease risk. The present study aimed to examine the “dose-response” associations between AVI, API and Framingham cardiovascular disease risk score (FCVRS). Methods: This survey included individuals with arterial stiffness indices collected at age 18 years and older. We used Pearson’s correlation coefficients and multivariate linear analyses to evaluate associations of AVI and API to other variables. The associations between FCVRS and AVI, API were analyzed by restrictive cubic spline. Results: 4311 people were included in the full study population, including 2091 males and 2220 females. In restricted cubic spline regression models, AVI or API had significant U-shaped associations with FCVRS, with the lowest risk score of cardiovascular disease was 8 units or 18 units, respectively. After AVI increased to 12 units, FCVRS increased rapidly until AVI was 27 units, and the FCVRS increased relatively flat afterward. For API, results were similar. When API increased to 23 units, the FCVRS increased rapidly, and after API was 52 units, FCVRS increased relatively flat. Conclusions: AVI or API had U-shaped associations with FCVRS. The associations may provide a new perspective for early treatment or lifestyle modifications to prevent cardiovascular diseases.
Response to Norcliffe-Kaufmann et al, "Fear conditioning as a pathogenic mechanism in the postural tachycardia syndrome." Brain. July 2022; online ahead of print. https://doi.org/10.1093/brain/awac249
Authors: Tuller David
Published: August 2022

The letter refutes the argument made in Norcliffe-Kaufmann et al that POTS is a functional psychogenic disorder based on the data presented in the paper.
Effects of Lysophosphatidic acid (LPA) on the development of ovarian cancer
Authors: Qin Jiang , Wang Mengshan , Hu Adam K
Published: August 2022

Lysophosphatidic acid (LPA) is highly expressed in ovarian cancer (OvCa). Recent findings showed that LPA acts as a perspective marker in ovarian cancer, but the potential mechanism is largely unclear. Our objective is to identify the transcriptional landscapes of the LPA-treated ovarian cancer cells. The gene enrichment methods including KEGG were used to further identify the potential signaling pathways. Moreover, the PPI network and Reactome map were constructed to further identify the biological processes. We found that TNF signaling pathway and Osteoclast differentiation are the significantly changed pathways in the LPA-treated ovarian cancer cells. We figured out the top ten interactive genes including TNF, IL1B, FOS, VEGFA, CCL2, STAT5A, CEBPB, FOXO1, MDM2, and CXCR4. Our study may provide novel mechanisms for the treatment of ovarian cancer by using LPA.