bluuebunny/crossref_metadata_2025 huggingface dataset:
İş Yerinde Can Sıkıntısı ve Sanal Kaytarma İlişkisi: Bir Kamu Kurumu Örneği
Authors: Sağır Zeynep , Çiftçi Gamze Ebru
Published: August 2024

Uluslararası yatırımların çoğalması, e-ticaret gibi teknolojik gelişmelerle ticari sınırların kalkması rekabet koşullarını daha da ağırlaştırarak, tüm işletmelere dünya pazarında yer edinme ve bu payı büyütme mücadelesini zorunlu kılmıştır. Elbette daha fazla kazanımı arzusu örgütleri zamanın etkin ve verimli kullanılması arayışına yönlendirmiştir. Bu bağlamda çalışlanlardan daha çok performans beklentisinde olan örgütler için çalışanların motivasyonunun artırılması, iş yerinde olumsuz davranışların azaltılması konularını daha çok gündeme gelmiştir. Bu olumsuz davranışlardan biri de sanal kaytarmadır. Özellikle, günümüzde iş yaşamınında da internet kullanımının artmış olması zamanın etkin kullanılması gibi birçok yarar sağlamış olmasına karşın kullanım yöntemi ve internette geçirilen süre bakımından olumsuz sonuçlar da doğurmuştur. Diğer bir kavram olan iş yerinde can sıkıntısı da çalışanları olumsuz etkileyen psikolojik olgulardan biri olarak görülmektedir. Çalışanların iç sıkıntısı gibi psikolojik bir durumu yaşaması olarak belirlenen can sıkıntısı kavramı, özellikle çalışanların yaptıkları görevlerin rutine binmesi, iş ve işlevlerin otomatikleşmesi veya çalışanın becerisinin çok üstünde görevler verilmesi durumunda ortaya çıktığı ifade edilmektedir. Can sıkıntısı konusu yeni gündeme gelen bir kavram olması nedeni ile diğer olumsuz örgütsel davranış değişkenlerine nasıl bir etki yarattığı tam olarak ortaya konulmadığı düşünülmektedir. Bu bağlamda, her iki kavramda alan yazında farklı değişkenlerle incelense de iş yerinde can sıkıntısı ile sanal kaytarma ilişkisini araştıran çalışmalara rastlanmadığını söylemek mümkündür. Bu önemden hareketle, çalışanlar üzerinde gerçekleşen bu çalışmada, iş yerinde can sıkıntısı ile sanal kaytarma davranışları arasındaki ilişkinin belirlenmesi amaçlanarak araştırmanın gerçekleşebilmesi için bir kamu kurumu seçilmiştir. Katılımıcılardan veri toplamak için çevrimiçi anket yöntemi kullanılmış ve elde edilen 242 veriler neticesinde hipotezlerin testi için SPSS programında t-Testi, ANOVA, korelasyon, regresyon analizleri kullanılmıştır. Elde edilen sonuçlara göre çalışanların iş yerinde can sıkıntısı düzeyleri ve sanal kaytarma davranışları arasında pozitif yönde anlamlı bir ilişki tespit edilmiştir. Ayrıca iş yerinde can sıkıntısının sanal kaytarmanın alt boyutlarını (iletişim kanalı olarak kullanım, kişisel amaçlı kullanım, işle ilgili olmayan kullanım, etik dışı kullanım ve günlük-rutin kullanım) anlamlı düzeyde etkilediği saptanmıştır.
Immunoblotting using precast gels v1
Authors: Bustos Francisco
Published: August 2024

Immunoblotting is a key technique to visualize changes in protein levels upon treatments. This technique can be challenging and established procedures are required to ensure reproducibility. Here we present our optimized protocol for immunoblotting of protein samples using precast gels and semiwet transfer. This protocol can be used to analyze samples from cell extracts and from in vitro reactions.
Ex vivo imaging of ovulation in mouse ovarian follicles v1
Authors: Thomas Christopher , Marx Tabea-Lilian , Mae Penir Sarah , Schuh Melina
Published: August 2024

Understanding ovarian function requires a clear and detailed picture of biological processes that take place deep inside the body, within a narrow window of time. Essential progress is being held back by the limited experimental approaches currently available to study the ovarian cycle in real time. We recently developed a model system to study ovulation live using high-resolution microscopy. We adapted a long-term membrane-based culture system of isolated mouse follicles for use with advanced quantitative live imaging. In brief, antral follicles are mechanically isolated from whole mouse ovaries and cultured in medium containing hormone combinations that mimic late folliculogenesis and ovulation. This enabled us to, for the first time, resolve the entire 12-hour-long ovulatory process at cellular resolution. To follow the behaviour of individual cells, we used transgenic mice expressing a membrane (Myr-tdTomato) and a histone (H2B-GFP) marker. Using confocal microscopy, we were able to follow the dynamic behaviour of cells and the oocyte inside the follicle. We were also able to use two-photon microscopy and 3D reconstructions to measure follicle volume and shape changes during ovulation. This generated robust quantitative measurements of the process. The major advantage of our method is the introduction of multiple imaging modalities and perturbations, allowing for the detailed visualisation and manipulation of ovarian function in real time. In this protocol, we describe the procedures for follicle isolation, culture, imaging.
Bulk growth and migration functional CRISPRi screens v1
Authors: D. Cosgrove Brian , Bounds Lexi , Key Taylor Carson , Rizzo Anthony , Barrera Alejandro , R Daniel Andrea , E. Crawford Gregory , A. Gersbach Charles
Published: August 2024

This protocol describes methods for a CRISPR interference screen to identify open chromatin regions that function as stiffness-responsive modulators of cell growth and migration.
MYH9 intron 3 saturation mutagenesis screening v1
Authors: D. Cosgrove Brian , Bounds Lexi , Key Taylor Carson , J. Rizzo Anthony , Barrera Alejandro , R Daniel Andrea , E. Crawford Gregory , A. Gersbach Charles
Published: August 2024

This protocol describes methods for a CRISPR screen to identify motifs in the MYH9 intron 3 mechanoenhancer that control MYH9 expression.
RNA-seq of primary human fibroblasts cultured on soft and stiff ECM v1
Authors: D. Cosgrove Brian , Bounds Lexi , Key Taylor Carson , J. Rizzo Anthony , Barrera Alejandro , R Daniel Andrea , E. Crawford Gregory , A. Gersbach Charles
Published: August 2024

This protocols describes methods for RNA-seq to characterize the cellular gene expression responses to changes in extracellular matrix stiffness cues.
ATAC-seq of primary human fibroblasts cultured on soft and stiff ECM v1
Authors: D. Cosgrove Brian , Bounds Lexi , Key Taylor Carson , J. Rizzo Anthony , Barrera Alejandro , R Daniel Andrea , E. Crawford Gregory , A. Gersbach Charles
Published: August 2024

This protocols describes methods for Omni ATAC-seq to characterize the chromatin structural responses to changes in extracellular matrix stiffness cues.
KAPP-Sen TMC: Pancreas Donor Acceptance Criteria v2
Authors: Aguayo-Mazzucato Cristina , Iwasaki Kanako
Published: August 2024

Pancreas Donor Acceptance Criteria
Single cell CRISPRi screen to identify mechanoenhancer gene targets v1
Authors: D. Cosgrove Brian , Key Taylor Carson , Barrera Alejandro , R Daniel Andrea , E. Crawford Gregory , A. Gersbach Charles
Published: August 2024

This protocols describes methods for a single cell CRISPR interference screen to identify gene targets regulated by mechanoenhancers that drive cellular growth and migration.
Pole Test Assessment v1
Authors: N Krout Ian , White Alexandria , Sampson Tim
Published: August 2024

Pole descentThis test measures the time for mice to descend a 24-inch pole wrapped in mesh. Mice were trainedfor two days with three trials: 1) placed head down ⅓ of the height from thebase, 2) placed head down ⅔ of the height from the base, and 3) placed headdown at the top. On testing day, mice were placed at the top of the pole forthree trials and the time to descend the pole was recorded. The time wasrecorded when the hindlimbs reached the base, with a maximum time of 60seconds. Mice that fell or slid were given a score of 60 seconds. Protocol has been approved by the California Institute of Technology’s Institutional Animal Careand Use Committee (IACUC).
Enfermedad valvular degenerativa en perros: actualización en su diagnóstico, tratamiento y pronóstico
Authors: Gómez-Duarte Leonardo
Published: August 2024

SummaryDegenerative valve disease is the main cardiovascular abnormality in dogs. This injury consists of microscopic lesions of the valve, due to mucopolysaccharide infiltration in the extracellular matrix of the leaflets and chordae tendineae, causing regurgitation of blood into the atria. The resulting decrease in cardiac output activates neurohormonal mechanisms that cause adverse ventricular remodeling, often times accompanied of clinical signs and death. An international group of internal-medicine experts has proposed new guidelines for diagnosis and appropriate treatment of the disease. This paper consists of a critical review of that proposal, contextualizing it for the Colombian conditions, according to the experience of the author.Key words: endocardiosis, leaflet mitral, leaflet tricuspid, myxomatosis. Resumen La enfermedad valvular degenerativa es la principal anormalidad cardiovascular de los perros. La lesión en el aparato valvular consiste en una infiltración de mucopolisacaridos en la matriz extracelular de las aletas valvulares y las cuerdas tendinosas, lo que ocasiona una regurgitación de sangre hacia las aurículas. Esta disminución del gasto cardiaco activa mecanismos neurohormonales que originan una remodelación ventricular, causante de la aparición de signos clínicos y la muerte. Un grupo internacional de expertos en medicina interna ha propuesto nuevos lineamientos para su diagnóstico y adecuado tratamiento en cada nivel. Este artículo hace una revisión crítica sobre esta propuesta, contextualizándola en el entorno nacional y la experiencia del autor. Palabras clave: endocardiosis, mixomatosis, válvula mitral, válvula tricúspide. Resumo A doença valvar degenerativa é a principal anormalidade cardiovascular dos cães. A lesão microscópica do aparelho de válvula consiste em acúmulo de mucopolissacarídeos ácidos e outras substâncias no interior dos folhetos e cordas tendíneas. Ela provoca uma insuficiência de sangue para a diminuição do débito cardíaco atrial. Isto resulta na ativação neuro-hormonais que podem levar ao remodelamento cardíaco adverso e insuficiência cardíaca congestiva. Um grupo mundial de especialistas em medicina interna propôs uma nova classificação para orientar o diagnóstico eo tratamento para cada nível. Este documento há uma revisão crítica no contexto nacional e da experiência do autor. Palavras-chave: endocardiosis, mitral, mixomatosa, tricúspide.
CONVENÇÃO DA HAIA: A VIOLAÇÃO DO DIREITO DA PERSONALIDADE E DO PRINCÍPIO DO MELHOR INTERESSE DA CRIANÇA EM CASOS DE VIOLÊNCIA DOMÉSTICA
Authors: Menengoti Gonçalves Ribeiro Daniela , Pedott Laura
Published: August 2024

O estudo tem por objetivo a Convenção da Haia sobre os Aspectos Civis da Subtração Internacional de Crianças, ao apresentar o contexto de sua criação, seus objetivos e as exceções previstas no texto legal da Convenção. Ainda, o objeto de estudo é analisar a violação do princípio do melhor interesse da criança ao não enquadrar a violência doméstica como exceção ao retorno da criança ao país de residência habitual, sendo que este princípio é o norteador para a aplicação da Convenção de 1980. A partir disso, questiona-se a salvaguarda dos direitos da personalidade e do interesse da criança em casos de violência doméstica contra a genitora. Assim, valendo-se do raciocínio dedutivo e levantamento bibliográfico, conclui-se a necessidade de evolução interpretativa do artigo 13º, § 1º, alínea b da Convenção para que se possa garantir o melhor interesse da criança em casos de violência doméstica.
BUSINESS TRANSFORMATIONIN THE CONDITIONS OF GLOBAL MACROECONOMIC INSTABILITY IN UKRAINE
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, VERGELES Vadym , BAIURA Dmytro ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: August 2024

Background. The contemporary business environment is affected by various factors, among which geopolitical conflicts and military actions occupy a special place. The transformation of businesses in wartime conditions is a relevant topic for research in the present economic and social context. Military conflicts and geopolitical tensions can significantly impact the strategies, processes, and development of businesses in various sectors of the economy. The goal was to highlight the results of a study of the most common ways of business transformation for its adaptation to the new conditions of global macroeconomic instability in Ukraine caused by the war. Methods. The following methods were used: scientific content analysis, methods of comparison, synthesis of information from scientific and journalistic sources, and generalization of existing theoretical approaches to the implementation of business transformation in both peacetime and wartime. Results. The primary responses to global macroeconomic instability in Ukraine have been identified as digitalization and reorganization of businesses. The concept and role of digitalization in ensuring business development are studied. The advantages that digitalization provides to businesses in wartime are appraised and several challenges facing a company that resorts to digitalization in wartime are identified. The types of changes involved in digital transformation and the stages of a firm"s digital transformation are also defined. The concept of business reorganization is defined, the types of business reorganization in Ukraine and around the world are presented, and the priority directions of business reorganization in Ukraine in wartime conditions are identified. A comparative description of digitization and reorganization is provided regarding the main forms of business transformation in wartime conditions. Conclusions. Based on the research, the most important factors for the successful adaptation of domestic enterprises to the conditions of war and approaches for the successful transformation of business in digital transformation and reorganization were determined.
DETERMINATION OF THE EFFECTIVE POROSITY OF ROCK RESERVOIRS BASED ON THE VOID SPACE STRUCTURE IN THE VISEVIAN AND TURNAISIAN FORMATIONS OF THE BEREZIVSKE FIELD OF THE DNIPRO-DONETSK DEPRESSION
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, YEMETS Vladyslav , BEZRODNA Iryna ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: August 2024

Background. Currently, it is quite important to track the patterns of the internal structure of reservoirs with their physical properties. The analysis of well-logging data in the well 203 of the Berezivske field of the Dnipro-Donetsk depression is necessary to assess the prospectivity of complexly structured reservoirs. Methods. The methodology for studying the void space structure in complexly structured reservoirs involved several stages: interpretation of well logging data; determination of parameters for the initial mathematical model of the reservoir; inversion of data from acoustic surveys into a curve of the distribution of different void formats; evaluation of reservoir rock types with determination of their effective porosity. Results. Based on the data of compressional and shear wave velocities, as well as density, three distinct rock groups were identified: compacted sandstone, calcareous sandstone and limestone. The initial approximation was obtained for each rock sample, including the set of void formats and their concentration within the reservoir layers. Direct analysis of the resulting data by the authors revealed that the most optimal void formats for the investigated intervals are: for intergranular voids – 0.07 to 0.9; for transitional voids and microcracks – 0.05 to 0.077; for microcracks – 0.007 to 0.0019; for caverns – 4 to 8. Based on the research results, it has been established that granular-cavernous porosity (39,2 %) and fracturedcavernous-granular porosity (29,5 %) are prevailing types of reservoirs. Conclusions. The calculated values of the void formats were used for these formations to quantitatively assess effective porosity based on the obtained data and specific electrical resistivity values at different depths of investigation. The resulting approximation of α = 0.6996 was selected, which reduced the error in calculating the effective porosity of reservoir rocks. The obtained results have demonstrated that the proposed methodologies are essential for understanding and quantitatively assessing the void space structure and filtration-capacitive properties of reservoir rocks, particularly when we are facing with a limited well logging data and restrictive core sampling.
WHEN FAILURES ARE INTENDED: THE USE OF STRATEGIC DEFEAT TO SHAPE LEGISLATIVE OUTCOMES
Authors: Moreno Rodolfo López
Published: August 2024

Influencing the lawmaking process is crucial for social movement success, but activists struggle to specify the content of bills. This article proposes that activists can shape legislation through strategic defeat, which involves using tactics expected to fail in achieving their primary goal but aimed at securing alternative advantages to enhance the movement's position. To develop this concept, this study draws on archival research and interviews with LGBT+ leaders, legislators, and key informants who participated in the campaign to legalize civil unions in Chile, where activists introduced politically unfeasible bills. While this strategic choice seems counterintuitive, their aim was not to pass these bills but to gain access to legislative spaces and cultivate a network of supporters. Then, as political conditions improved, activists leveraged these advantages to significantly shape the civil unions law. This article highlights how specialized strategic choices create opportunities for influence and reevaluates the role of defeat for social movements.
EXPANDING PROTEST EVENT ANALYSIS THROUGH VIDEOS
Authors: della Porta Donatella , Hunger Sophia , Hutter Swen , Lavizzari Anna
Published: August 2024

The increasing availability of digital video material has led to its widespread use in the social sciences, especially in research adopting processual and relational approaches. However, methodological reflection has not developed at the same pace. In this article, we propose ways to extend classical protest event analysis using videos of contentious events. Our novel method, video-enhanced protest event analysis (vPEA), expands protest event research on two frontiers. First, researchers can use vPEA extractively, contributing to source triangulation and increasing the validity of written sources. Second, it can be used reconstructively, expanding the range of information available by capturing emotional atmosphere, choreography, and processes and dynamics more generally. The article provides a step-by-step guide through the vPEA process, which we illustrate using a secondary analysis of existing research and original material on Covid-related protests in Germany and Italy.
FİNANSAL PİYASALARDA VOLATİLİTENİN SÜRÜ DAVRANIŞI ÜZERİNE ETKİSİ: BRICS-T ÜLKELERİ ÜZERİNE BİR UYGULAMA
Authors: Kangal Esra , Akel Veli
Published: August 2024

Piyasa katılımcılarının, yatırım kararı verirken rasyonel davranamamalarına sebep olan sürü davranışı davranışsal finans kapsamında yer alan bir kavramdır. Bu çalışmada BRICS-T Ülkelerinde sürü davranışı varlığını araştırmak amacıyla Christie ve Huang (1995) ve Chang, Cheng ve Khorana (2000) modelleri kullanılmıştır. 2011-2021 yılları arasındaki günlük piyasa verileri kullanılarak analiz gerçekleştirilmiştir. Tüm, düşen ve yükselen ve piyasalar için regresyon analizi sonuçları ayrı ayrı incelenmiştir. CH (1995) modelinde Brezilya, Rusya, Hindistan, Güney Afrika ve Türkiye yükselen piyasa dönemlerinde sürü davranışı varlığı tespit edilirken Çin finansal piyasasında sürü davranışı etkisi görülmemiştir. CCK (2000) modelinde ise Hindistan yükselen piyasasında sürü davranışına dair kanıtlar elde edilirken diğer BRICS-T ülkelerinde bu modele göre herhangi bir sürü davranışı bulgusuna rastlanılmamıştır. Elde edilen analiz sonuçlarına göre volatilitenin sürü davranışı üzerinde asimetrik bir etkisi gözlemlenmemiştir.
Menguak Peran Badan Audit dan Pengendalian Internal pada Tata Kelola Keuangan Gereja
Authors: Simanjuntak Angel Pitaloka , Rusliyawati Rusliyawati
Published: August 2024

Penelitian ini bertujuan untuk mengevaluasi pelaksanaan audit dan pengendalian internal yang dilaksanakan oleh badan audit gereja Huria Kristen Batak Protestan (HKBP). Penelitian ini menggunakan jenis penelitian deskriptif kualitatif dengan metode studi kasus. Teknik analisis data dilakukan dengan pengumpulan data, reduksi data, penyajian data, dan gambaran hasil penelitian dengan indikator penilaian adalah buku panduan badan audit HKBP.  Hasil dari penelitian ini adalah badan audit dalam gereja HKBP Sosok – Batang Tarang sudah berjalan sesuai dengan indikator penilaian buku panduan badan audit HKBP. Pembagian kerja yang terjadi dalam proses pelaksanaan audit juga telah berjalan dengan baik dan pengendalian internal di gereja HKBP Sosok – Batang Tarang diterapkan dengan baik. Peran majelis gereja dan jemaat sudah sangat baik dalam menerapkan pengendalian internal.  Penghambat terjadinya pelaksanaan audit adalah seringnya terjadi miskomunikasi dan kurangnya waktu untuk melakukan pengauditan keuangan. Hasil dari penelitian ini memiliki implikasi praktis yaitu penelitian ini dapat dijadikan sebagai percontohan bagi pelaksanaan proses audit dan pengendalian internal yang dilakukan oleh badan audit gereja.
Novel Method of Cutting Glass Epoxy Laminated Composites by Using Lathe Fixture and Comparative Study of Mechanical Properties
Authors: Matur Mahantesh S. , Bhavi Iresh , Angadi B. M. , Vanarotti Mohan , Nagathan V. V.
Published: August 2024

Experimental studies were carried out on the effect of cutting methods on mechanical properties of E- glass-epoxy laminated composites. Laminates with three fibre weight fractions, namely 0.30, 0.50, and 0.70 were prepared by vacuum bag method. Five cutting methods namely, Diamond cutter, Band saw 14TPI, Band saw 24TPI, Hack saw14TPI and Hack saw32TPI were selected to cut the laminates. Lathe fixture is fabricated and used in the cutting operation along with Diamond cutter. The above-mentioned cutting methods were used to cut Tensile, Compression and Interlaminar Shear strength test specimens as per ASTM standard. To nullify the effect of size variation of the specimen on the strength of the composites, an Accuracy Rating method is introduced and applied in the calculation of Real strength of the specimens. Tests were conducted using UTM and the results were used as base of index to assign grade points to these cutting methods. The mechanical results have been substantiated by the SEM-studies. The results show that, Diamond cutter method is better and hence can be used to cut the glass-epoxy laminated composites.
Optimization of Stirring Speed and Time in Achieving Sound A356-Sic MMCs and its Effects on Microstructure and Mechanical Properties
Authors: Vanarotti Mohan B. , Angadi B. M. , Bhavi Iresh , Matur Mahantesh S. , Ambli Kushal G.
Published: August 2024

Stirring is an essential and important factor in stir casting process of Liquid Metallurgy (LM) to achieve homogeneous dispersion of the reinforcements in the matrix. In the present study two important parameters of stirring, such as stirring time and speed were optimized for the preparation of sound A356-SiC Metal Matrix Composites (MMCs). The effect of stirring speed and time on microstructure of A356-10%SiC MMCs were analyzed using Scanning Electron Microscopy (SEM), Energy- dispersive X-Ray Spectroscopy (EDX) and X-Ray Diffractometry (XRD). The experiments were carried out for different stirring speed and time varying from 250, 350, and 450 rpm and 5, 7, and 9 minutes respectively. Initially stirring time was optimized and was found to be 7 minutes at a constant stirring speed of 350 rpm. And this optimized stirring time of 7 minutes is considered for further experiments while optimizing stirring speeds. Increase in the stirring speed and time from 5 minutes and 250 rpm resulted in homogeneous distribution of SiC particles in A356 matrix without having any agglomeration or segregation. Further, at the stirring speed of 350 rpm and stirring time of 7 Minutes a sound A356-SiC MMCs were obtained. Increases in stirring speed and time, on the other hand, resulted in the loss of microstructural characteristics. Finally, a stirring speed of 350 rpm and a stirring period of 7 minutes were discovered to be the ideal speed and time for achieving maximal tensile strength and hardness.
Optimization of the Design of Shell and Double Concentric Tube Heat Exchanger using the Jaya Algorithm
Authors: Deepak H. S. , Veerabhadrappa Kavadiki , Tharakeshwar T. K.
Published: August 2024

Heat exchangers are used to carry heat energy between two or more fluids. Different forms of heat exchangers are used in various applications. Here we are considered for optimization of shell and double concentric tube heat exchanger. This kind of heat exchangers are used in many years for their satisfactory services for industry, availability of set of symbols and excellence for design, modelling and are produced from different of materials. In this paper a novel computative technique called Jaya Algorithm is used and the aim is to lower the overall cost by designing the heat exchanger with a shell and two concentric tubes. The principle behind this strategy is that the best answer for a given problem should be sought, while the lowest standard approach should be avoided. It proves to be very efficient with a typical start and hence this algorithm would help to achieve our objective function that is in comparison to typical heat exchangers the overall cost has dropped by around 43% and 34% with GA based heat exchanger with a shell and dual concentric tube heat exchangers.
Design and Simulation of Mg and Ti Alloy-based Wheel Nuts for Formula One Cars
Authors: Daniel Renju C. , Sam Febin Geo , Thomas Lijin , Kannan S. , Ali Mubarak
Published: August 2024

Formula One is the highest level of globally recognised auto racing for single-seater formula racing vehicles, as sanctioned by the Federation of International Automobiles (FIA). In the Formula One World Championship, the word formula refers to the set of rules that all competing cars must obey. Formula cars are developed with outstanding attributes to survive in high-speed racing. However, issues such as wheel nut failure are common in these vehicles. The wheel nut has to hold the wheel to the car and must resist braking and lateral forces. Titanium alloys are commonly utilized in the manufacture of wheel nuts for Formula One cars, while magnesium alloys are also considered for high-end automobile wheel nuts. In this study, the design of a wheel nut with titanium and magnesium alloys is analyzed using Ansys under uniform and variable stress situations. The results of the analysis showed that titanium alloy is the best-suited material for F1 racing cars. The reasons for the nut failure are also discussed in this paper. The paper contributes to the automotive industry by providing insights into the design and material selection for wheel nuts in high-speed racing cars, specifically Formula One vehicles.
A Review Article on Fatigue Life Estimation of Miter Bend
Authors: Rathod Nirav , Patel Dilip
Published: August 2024

The Efficiency of the piping system largely relies upon bends used to connect pipes. The piping system is at the highest risk due to stress concentrations at abrupt cross-sectional change, large support less valves, vibrations, and lack of the assessment of fatigue failure. Bends undergo different combine loads involving internal pressure, in plane cyclic loading, out of plane cyclic loading, dead weight along with different thermal conditions. Compared to straight pipe miter bend has more complex mechanical behavior and critical stress-strain locations due to its asymmetric shape and hence miter bend undergoes plastic failure in the form of collapse, ratcheting, and fatigue that leads to component failure at the end. This paper presents review for behavior of miter bend considering important fracture mechanics parameters such as limit and collapse load, local wall thinning, ratcheting, creep, and their effects on fatigue life. The review also tabulates all fatigue life equations used by researchers for predicting fatigue life. Topics for further research on miter bends such as out of plane loading, vibration induced fatigue and creep are also noted.
A Convolutional Neural Network based Pattern Classification Approach for Dynamic Security Assessment with Inadequate Energy Sources
Authors: Mukherjee Rituparna , De Abhinandan , Saha Promit Kumar , Mukherjee Susmita Dhar , Dhar Abhishek , Adhikari Saurabh
Published: August 2024

The security-state categorization of complex power system networks based on "transient stability" is proposed in this research study as a "Convolutional Neural Network (CNN)" based pattern classification approach. The “pre- contingency operating states” of a “power system network” served as CNN’s input. The focus was on predicting the system's post-contingency stability condition, so the Critical Clearance Time (CCT) was used as the primary metric for categorizing the “pre-contingency operational states” into "secure" and "insecure" classes. The recommended method was successfully applied to the “IEEE 39-bus system”, and it was discovered that the CNN classifier can classify the power system's pre-contingency operational states based on an accurate forecast of the conditions that will lead to future post- contingency transient stability.
Study the Hardness Behaviour of Heat Treated Aluminium 7075-Aluminium Nitride Particulate Composite
Authors: Annapoorna T. L. , Chandra Batluri Tilak , Murthy Sanjeeva , Shivashankar H. S.
Published: August 2024

Composite materials with an aluminium matrix and ceramic reinforcement are becoming more popular in design application. The addition of AlN reinforcement increases the hardness of aluminium 7075 composite. In the current study, stir casting method was used to manufacture aluminium 7075-AlN composites by increasing the weight of AlN particles from 0 to 10 percent by a step of 2 weight percent. The As-cast and its composites underwent a solutionizing treatment for two hours at a temperature of 470° C, which was followed by extinguishing in different media, such as air, water, and ice. Then the specimens are subject to artificial ageing at 120c.microstructure analysis and hardness test was carried on both as cast and Al7075-AlN metal matrix composites. Al7075-AlN MMCs show an improvement in hardness when compared with Al7075.
Study of Tribological Behaviour of T6 Heat Treated Al7075-AlN Metal Matrix Composites
Authors: Annapoorna T. L. , Chandra Batluri Tilak , Shivashankar H. S.
Published: August 2024

Metal matrix composite of aluminium was developed because of excellent properties like high level of strength, light weight, stiffness, and wear resistance. An effort is made to investigate the impact of reinforcement particles namely aluminium nitride on Tribological behaviour of aluminium 7075 alloy matrices. The percentage weight of aluminium nitride particulate considered here is 2wt% to 10wt% in a step of 2wt%. Stir casting process liquid metallurgy method is used to manufacture of composites. The as-cast aluminium alloy and composites specimens are prepared by lathe machine and prepared for heat treatment by subjecting to a temperature of 470ºC for 2-hour solutionizing treatment followed by ice medium quenching, next the specimens are subjecting to artificial ageing for duration of 8 hour with temperature of 120°C. Through a pin and disc test machine, the Tribological characteristics of as cast and composite alloys were investigated both before and after heat treatment. The wear rate was examined as a function of sliding velocity and applied load. Using a scanning electron microscope, the wear surface morphology and pin wear behavior were examined.
Decarbonizing Indian Steel
Authors: Hariom  , Kumar Yogesh , Kumar Amit
Published: August 2024

India is the second largest steel producer in the world around 120 MT of crude steel in 2021-2022. The National Steel Policy envisages increasing crude steel capacity to 300 MT by 2030-2031. Steel is an essential sector for developing economy like India. On the other hand, this is one of the most energy intensive and polluting sectors. Steel production consumes around 20% of global industrial energy and contributes 7% CHG (2.6 Gt CO2/yr.). India is signatory to the UNFCCC Paris agreement whose goal is to keep the rise in mean global temperature well below 2oC above pre-industrial level. India Intended Nationally Determined Contribution (INDC) is pledged to (a) to reduce emission intensity to its GDP by 33-35 % by 2030 from the 2005 level and (b) to achieve about 40% cumulative electric power installed capacity from renewable source. The high level of energy consumption and CHG emission of steel production is largely driven by primary BF-BOF route which uses carbon as the iron ore reductant and accounts for approximately 70% of total production and only 5% is produced by Directly Reducing Iron (DRI) followed by refinement in Electric Arc Furnace (EAF). Switching to 100% H2 will mitigate CO2 emission.
Power System Transient Stability Analysis using Decision Tree Classifier- A Case Study on the IEEE 57- Bus System
Authors: Mukherjee Rituparna , De Abhinandan , Saha Promit Kumar , Mukherjee Susmita Dhar , Dhar Abhishek , Adhikari Saurabh
Published: August 2024

This paper presents a novel method of “power system dynamic security assessment” using “decision tree (DT) classifier”. The standard “pattern recognition framework”, has been followed in the research work presented in this paper, in order to ensure that real-time implementation of the proposed framework is feasible. With the aim of recognizing the “degree of criticality” associated with various “pre-contingency operational circumstances,” the “DTSC” was created and taught offline. The “Decision Tree Security Classifier (DTSC)” was successfully implemented in a simulated environment to recognize a power system’s “unforeseen operating conditions” and predict their vulnerability to “post- contingency dynamic insecurity”.
Photocatalytic Degradation of the Azo Dye “Congo-Red” by ZnFe2O4/ ZnO Nanocomposite
Authors: Mohammed Nazeer Zulfiqar Ahmed , Praveen M. , Harikrishna R. , Kumar Mohan , Nagarajaiah Shobha , Nagabhushana B. M.
Published: August 2024

This paper reports the preparation of ZnFe2O4/ZnO metal oxide nanocomposite by solution combustion synthesis. Zinc nitrate and ferric nitrate were utilized as oxidizers in this work, while glycine served as fuel. The powder X-ray diffraction pattern indicated that the nanocomposite consisted of ZnFe2O4 and ZnO having spinel and wurtzite phases respectively. The efficiency of the nanocomposite in the photocatalytic degradation of Congo Red (CR) dye from its aqueous solution was studied. The effects of CR starting concentration, photocatalyst dose, and irradiation duration were investigated. More than 90 % degradation of 10 ppm CR solution was achieved for a photocatalyst dosage of 1.0g/litre of the dye solution in 40 minutes. The excellent photocatalytic activity of the nanocomposite was considered as the result of the synergistic mechanism between its constituent phases, significantly reducing electron-hole recombination. It was noticed that the photocatalyst after the first regeneration was about 85 % efficient compared to the original one. The water contamination with human activity can be reduced by the usage of ZnFe2O4/ZnO metal oxide nanoparticles.
Analytical Approach to Nonlinear Oscillatory Flow Through a Semi-Infinite Vertical Permeable Wall in a Porous Medium with MHD Mixed Convection
Authors: Kumar Vijaya , Dinesh P. A. , Aruna A. S. , Prasad G. S. , Suresha M.
Published: August 2024

The present work illustrates mixed MHD convection flow of an unstable two-dimensional viscous incompressible fluid flow in a porous material under the following conditions: semi-infinite vertical permeable wall support (i) There is a constant mean oscillation in the suction velocity normal to the wall throughout time. (ii) A constant mean velocity of the free stream; (iii) a constant wall temperature; and (iv) a somewhat high temperature differential between the wall and the free stream, which generates free convection currents. Conservation of mass, energy and momentum are used to obtain the governing equations. These equations are non-linear in nature and connected with one another. The nonlinear differential equations are non-dimensionalized employing non-dimensionalized parameters such as Prandtl number Pr, Grashof number Gr, Eckert number Ek, Hartmann number Mh, and Viscous ratio. An analytical method is used to solve approximate solutions for nonlinear PDEs utilizing the double regular perturbation technique. The numerical results for temperature, skin friction, heat flow, velocity, and skin friction are computed for various parameters and are demonstrated to be in good agreement with previous findings.
Effect of Dry Deposition and Gravitational Settling Velocity on Primary and Secondary Pollutants Emitted from an Area Source in the Presence of Mesoscale Wind
Authors: Raikar Vanita R. , Lakshminarayanachari K. , Bhaskar C. , Bharathi K.
Published: August 2024

The most crucial atmospheric phenomenon is the change of atmospheric pollutant from gaseous status into the particle shape. To study about advection and diffusion of environmental air pollutants emitted by an area resource in an urban region, a numerical model is being framed in the present article. The numerical solution of outlining differential equations is carried out using Crank-Nicolson implicit technique. The examination of results being done for the dispersion of pollutant in an urban region for atmospheric stable state as well as neutral state in presence and absence of mesoscale wind in various meteorological conditions.
Comparative Analysis to Predict the Temperature Rise in 3ɸ-Squirrel Cage Induction Motor using Lumped Parameter Thermal Model and Finite Element Method for Industrial Applications
Authors: Sachin S. , Manickavasagam Krishnan , Sriram A. T.
Published: August 2024

The 3ɸ - Squirrel Cage Induction Motor (SCIM) used in industrial are prone to thermal breakdown due to its working conditions. Losses in the motor cause rise in temperature. Losses estimation of the 3ɸ - SCIM play a very important role in analyzing the electrical and thermal performances. In this paper a Lumped Parameter Thermal Model (LPTM) and Finite Element Method (FEM) is used to estimate the temperature rise in 3ɸ - SCIM. The temperature rise is obtained considering loss, with load variation between no-load to full load conditions, this enables to analyse the application of induction motor in mines. In addition to that a comparative analysis is carried out between Lumped Parameter Thermal Model (LPTM) and Finite Element Method (FEM) to determine the effective method to estimate temperature rise and determine the relative percentage error in temperature rise at various elements of 3ɸ - SCIM.
Statistical Comparison in Testing Tools of pH of Mud
Authors: Sharma Tarunika , Khubnani Rashi , Ramesh N. L.
Published: August 2024

As long as a mine is in operation, solid mine waste must be evaluated for environmental impact. Because of this, there is now a need for instruments and procedures to comprehend the net acidity of mine wastes. In order to give a rough assessment of the waste's present net acidity, rinse and paste pH tests are frequently employed during the first screening process. The pH value is basically defining hydrogen ion concentration which define acidic and basic behavior of substances. Since hydrogen ion (H+) is a key component in a variety of chemical reactions. Therefore, an honest measure of the pH is very significant in substances like (mud, water, fruits, vegetables etc.). In this study using statistical analysis of mud samples, the comparison between two different method of testing tools that is pH meter and pH kit is done. The low pH mud has its own harmful consequences, whereas high pH mud tends to develop deposits that clog pipes and alter reaction processes, among other things.
A Performance Evaluation of Heat-Treated Tool Steels – A Review
Authors: Mohandas K. N. , Sridhar B. S. , Acharya Nishanth R. , Kumar Adineru Pavan
Published: August 2024

Tools or machine components undergo extensive damage due to abrasive wear. The contact between the working surface and hard particles that are mostly mineral particles initiates this action. Applying abrasion-proof materials or developing robust, protective and damage proof coatings on component surface is the means for extending their lifetime. The selection of the tool plays a major influence on productivity. One of the emerging tool materials is tool steel which is employed in a broad variety of applications. Alloying methods that create carbides, such as chromium, vanadium, molybdenum, and tungsten, are used to make tool steels. The impact of heat treatment techniques on different tool steels and also the cryogenic process is studied. Understanding how various tool steels behave under various heat treatment conditions is the main goal of the current study, which further looked at how heat treatment affects the microstructure of various tool sheets of steel, the influence of heat treatment on metallurgical properties and surface topography are also discussed here.
Bridging the Gap: Exploring Religious Literacy as an Alternative Approach to Religious Education in Indonesia
Authors: Imamah Fardan Mahmudatul , Lee Hongsok
Published: August 2024

This research addresses the problem of religious education in Indonesia, which often focuses solely on theological education and causes alienation among religious communities. The study aims to explore religious literacy as an alternative to bridge this gap. This qualitative research uses Critical Discourse Analysis (CDA) by Norman Fairclough, analyzing one transcript based on a video lecture in an academic setting, four videos on international seminars, one short school video, and two talk shows on “Religious Literacy Indonesia” on YouTube. The analysis examines how religious literacy is described in the current religious education discourse, identifies the scholars involved, and explores the implications of religious literacy on the discourse of religious education. The result shows that religious literacy in Indonesia has adapted to government policies and educational needs, focusing on practical skills for religious teachers and extension officers. It collaborates with the government for effectiveness but remains mostly within academic circles, with limited public understanding. Challenges include maintaining religious identity and boundaries in interfaith learning. Religious literacy is expected to build social trust, which requires creating shared moral spaces among different religions and aiming for positive outcomes in interfaith relations.
Inclusive Education Awareness: Muslim Community Response to The Jurisprudence of Disability in Yogyakarta
Authors: Soleh Akhmad , Muhamad Ahmad Shamsuri , Libriyanti Yuyun
Published: August 2024

This study explores community perspectives on individuals with disabilities, recognizing consensus despite diverse viewpoints. Individuals with disabilities, whether physical or non-physical, are acknowledged to exhibit specific deficiencies while excelling in other aspects, warranting specialized attention, treatment, and facilities distinct from those serving non-disabled individuals. Our analysis, which uses qualitative field research methods, reveals a lack of public awareness of disability jurisprudence, especially in Yogyakarta. Interviews revealed a lack of awareness among the Muslim community, emphasizing the crucial role of disability Fiqh in guiding rituals and determining the validity of worship practices for individuals with disabilities. The findings underscore an information gap on the Fiqh of disability empowerment in Yogyakarta, emphasizing the need for a broader awareness campaign through various media channels. In addition, people with disabilities face significant challenges during worship, necessitating concrete collaborative efforts from the government, religious organizations, and the wider community to provide facilities and support. It is imperative to increase public understanding of disability jurisprudence and make concerted efforts to address information gaps, fostering a more inclusive worship environment for people with disabilities.
Correlation between Milk Urea Nitrogen (MUN) Levels with Metabolizable Energy (ME) and Crude Protein (CP) Provided with Ratio of Roughage Concentrate by Supplied Feed of Dairy Cattle and its Effect on Milk Yield and Milk Composition
Authors: Chanda Tanni , Khan M.K.I. , Chanda G.C. , Debnath G.K.
Published: August 2024

Background: Proportion of roughage and concentrate supply to dairy animal is a major challenge in commercial dairying of Bangladesh that directly correlated with quality and quantity of milk. Several studies revealed that, level of milk urea nitrogen (MUN) is an indication of proper feed supply of the animals. Therefore, the study was the attempt to find, the relationship between the level of MUN with metabolic energy (ME) and crude protein (CP) by supplied ratio of roughage, concentrate and effect of altered level MUN with milk quality and quantity in commercial dairy farms of Chittagong, Bangladesh. Methods: For the study, feed and milk samples were taken from randomly selected three different farm categories for the period of July 2014 to June 2015 monthly. The herd average milk production was taken from the recorded data. The feed and milk composition were analyzed in the dairy lab of Chittagong Veterinary and Animal Sciences University (CVASU). MUN was determined by spectrophotometric method in the Poultry Research and Tanning Laboratory (PRTC) of CVASU, Chittagong, Bangladesh. Observed data was analyzed by using Pearson’s correlation methods to find out the correlation among MUN level, supplied source of ME and CP and milk production and composition. Result: The results suggested that there was significant level difference of MUN (P less than 0.05) irrespective of seasons and farm categories with the sources of ME and CP of supplied feed. Milk yield relate significantly (P less than 0.05) with MUN level when there was lowest supply of roughage and maximum M.E comes from concentrate feed irrespective of farm categories. So, determination of MUN level will be helpful to commercial dairy farmers when the issues related to milk quality and quantity.
PARTILHA COMO MODO DE APRENDIZAGEM SENSÍVEL NA MIMESE COMPANHIA DE DANÇA COISA
Authors: Cabral Jeferson , Bertoni dos Santos Vera Lúcia
Published: August 2024

O propósito do texto é perceber como bailarinas da Mimese Companhia de Dança Coisa (Mimese) compreendem a produção de partilha sensível (Rancière, 2005) dentro do processo de criação em dança que vivem, enquanto participantes do grupo. Como metodologia, o artigo usou da intepretação de escritos de Rancière e os aplicou nas entrevistas feitas com integrantes da companhia. Dessa maneira, há a compreensão, através das entrevistas com o elenco, que a partilha sensível se dá pelo fato de pessoas diversas terem acesso ao modo de produção de danças ao entrarem em contato com o trabalho desenvolvido pela diretora Luciana Paludo.
RITOS DE BOA SORTE E A FORÇA DA COLETIVIDADE: “MERDE”
Authors: Feltes Alessandra Fernandes , Da Silva Pinto Aline , Roese Sanfelice Gustavo
Published: August 2024

O presente estudo busca compreender as dinâmicas de trocas entre os jovens de um grupo de dança contemporânea de Novo Hamburgo/RS. Caracteriza-se como uma pesquisa qualitativa com inspiração etnográfica, utilizando instrumentos como acervos pessoais do grupo de dança, observação participante e diários de campo. Especificamente, acerca dos ritos observados, nota-se que são eles que transformam o espaço da dança em um campo único, singular, seguro e, ao mesmo tempo, conhecido, visando à propagação. Os processos de interação em cena dos dançarinos são mediados pela potência do laço social que os une, pelo sentido de irmandade que expressam entre si e, sobretudo, por uma vontade de estar-junto.