bluuebunny/crossref_metadata_2025 huggingface dataset:
MÉTODOS DE CUBAGEM E XILOMETRIA PARA ESTIMATIVA DE VOLUME DE TORAS DE EUCALYPTUS SP
Authors: Do Nascimento Jeferson de Castro , Martins Matheus Teixeira , Pfeifer Maiquel Ivo , Nunes Diego Guimarães , Bugs Cristhian Augusto , Floriano Eduardo Pagel
Published: July 2023

No meio florestal é essencial realizar um planejamento de produção da madeira, visando garantir retorno financeiro e quantificar os produtos extraídos de povoamentos florestais. Umas das etapas desse planejamento são as estimativas de volumes de toras de árvores de povoamentos, que podem ser feitas através de modelos matemáticos e por meio do uso de um xilômetro   considerado o método mais exato para volumetria. Porém o uso do xilômetro também está sujeito a erros devido o seu funcionamento ser baseado no deslocamento de água das toras submersas e isto é afetado por fatores ambientais e também pelo manuseio do mensurador. Tendo em vista os erros ocorridos nas medições com xilômetro tradicional foi criado um xilômetro elétrico para obter erros menores que 5% nas estimativas de volumes, obtendo resultados mais precisos e confiáveis. Portando o objetivo do trabalho foi comparar volumes de duas toras de Eucalyptus sp. estimados com modelos matemáticos e por meio do uso do xilômetro elétrico.  Análises estatísticas verificaram a existência de diferenças estatísticas entre os volumes obtidos com os modelos matemáticos e com o xilômetro elétrico. A partir dos resultados encontrados verificou-se que não houve diferença significativa entre os volumes obtidos com modelos matemáticos e com xilômetro elétrico.
RETROATIVIDADE DA LEI NOS CONTRATOS: ANÁLISE SOB A PERSPECTIVA DO ARTIGO 2.035 DO CÓDIGO CIVIL
Authors: Santos Thiago do Amaral
Published: July 2023

O presente artigo pretende examinar a retroatividade a lei nos contratos de trato sucessivo, em que se verificou a alteração legislativa durante seu prazo de vigência. O estudo se concentra na aplicação do artigo 2.035, do Código Civil, que foi incluído para regular questões de direito intertemporal, mas, ao mesmo tempo, ensejou em discussão sobre sua constitucionalidade. Analisa o conceito de cada instituto jurídico aplicável ao dispositivo legal em discussão. Também aborda os aspectos de direito intertemporal para que se possa compreender o problema proposto. Indica os preceitos constitucionais e legais relacionados com a irretroatividade das leis, assim como a análise crítica sobre a redação da norma legal analisada. Traz subsídios mediante crítica de decisões judiciais, inclusive dos Tribunais Superiores.
An Investigation into Perception of Online Teaching and the Challenges of Online Teaching Faced by English Lecturers at Quang Trung University during COVID-19 Outbreak
Authors: Vo Thi Thu Suong , Le Thi My Nho
Published: July 2023

Universities worldwide have shifted from face-to-face to online teaching due to the effects of the Covid-19 pandemic, and Quang Trung University in Quy Nhon City was not an exception. However, there has yet to be research on online teaching at the university. This research was conducted to fill this gap. The authors conducted the study to investigate teachers' perceptions and problems when teaching online. Seven English lecturers at the university were asked to fill in a semi-structured questionnaire and attend interviews afterward. The findings showed that most lecturers were satisfied with online classes and encountered some difficulties, including how to motivate and communicate with their university students effectively and lack of technical skills as well as technical issues. In this article, researchers have provided an overview of lecturers' perceptions and some obstacles to online teaching; therefore, teachers may overcome difficulties and attain effectiveness when teaching online.
PEMANFAATAN BIJI KELOR (Moringa oleifera) SEBAGAI BIOFLOKULAN LOGAM BERAT TIMBAL (Pb) DI TELUK KENDARI
Authors: Yuyun Saputri Sartika Ayu  , Indra Purnama Iqbah  , Titi Purnama
Published: July 2023

Masuknya bahan yang merugikan seperti logam berat timbal di Teluk Kendari akan mengganggu ekosistem perairan Teluk Kendari. Adanya kontaminan akan berdampak negatif kepada siklus biologis makhluk akuatik yang mebahayakan mereka, tidak terkecuali berdampak melalui rantai makanan termasuk manusia. Salah satu cara untuk mereduksi kadar logam berat timbal di perairan adalah menambahkan serbuk biji kelor sebagai koagulan. Pada penelitian Armid (2015), kadar timbal pada perairan Teluk Kendari sebagian besar melebihi baku mutu, sehingga dapat merusak lingkungan.

Kadar timbal yang melebihi baku mutu pada perairan Teluk Kendari mendorong peneliti untuk melakukan eksperimen menurunkan kadar timbal dengan memberikan serbuk biji kelor. Penelitian ini berjenis Pre-Experimetal dengan desain Pre-Test And Post-Test One Group dengan metode uji non-parametrik Kruskal-Wallis.

Hasil penelitian diperoleh bahwa serbuk biji kelor dengan variasi dosis 0 mg/L, 200 mg/L, 400 mg/L dan 600 mg/L mempunyai rata-rata penurunan kadar timbal sebesar 54,2% dengan reduksi paling efektif 75,7% pada dosis 600 mg/L. Hasil uji statistik juga menunjukkan PValue < nilai α yaitu 0,037 < 0,05 atau Ha diterima dan H0 ditolak sehingga serbuk biji kelor dinyatakan efektif dalam menurunkan kadar logam berat timbal (Pb) di perairan Teluk Kendari.

Dapat disimpulkan bahwa serbuk biji kelor dengan dosis 600 mg/L paling efektif menurunkan kadar timbal pada sampel air laut Teluk Kendari. Disarankan perlu dilakukan penelitian lebih lanjut mengenai kandungan logam berat lainnya khususnya yang diperoleh dari hasil penelitian ini.
Сутність та особливості цифровізації у сфері публічного управління
Authors: Сиротін В. Д.
Published: July 2023

У статті розглянуто сутність та особливості цифровізації у сфері публічного управління. Наголошено, що останнім часом поширення цифорвізації на всі суспільні процеси супроводжується розробкою стратегії цифровізації і сфери публічного управління. У статті узагальнено використання термінології цифровізації публічного управління, окреслені основні виклики та перешкоди цифровізації публічного управління. Визначено, що цифровізація є одним з ключових сучасних трендів суспільного розвитку. Цифрові технології охоплюють побут сучасної людини, сферу її професійної діяльності, дозвілля й соціалізації, стають важливим інструментом покращення процедур, механізмів, методів діяльності у сфері публічного управління. Запровадження інформаційно-комунікаційних технологій сприяють оцифруванню інформації,  прискорюють її обіг та поширення, що змінює суспільні відносини. Суспільство перетворюється у цифрове. Обґрунтовано погляд на цифровізацію публічного управління як активне використання цифрових технологій у системі прийняття та реалізації державно-управлінських рішень, при наданні адміністративних послуг, формуванні механізмів реалізації державної політики у всіх сферах суспільного розвитку. Встановлено, що цифрові технології спроможні прискорити комунікаційні процеси між органами державної влади та місцевого самоврядування і кінцевого споживача адміністративних послуг. Виявлені позитивні зрушення цифровізації, які пов’язані із спрощенням отримання важливих адміністративних послуг та дозвільних документів, скороченням видатків на обслуговування системи надання адміністративних послуг офлайн, мінімізацією проявів корупції. Цифровізація публічного управління означає спроможність переведення державних сервісів в електронну форму, застосування нових інструментів державної комунікації, спрощення дозвільних процедур шляхом надання документів через Інтернет, налагодження дієвої співпраці органів державної влади з громадянами через електронні сервіси тощо, що у сукупності сприяє зміні традиційних практик, технологій, механізмів  у сфері публічного управління.
Wall Shear Stress Measurements Using A MTV-Based Plenoptic Microscope
Authors: Huck P.D. , Fort C. , Bardet P.M.
Published: July 2023

In this contribution, we describe the first ever microscopic Molecular Tagging Velocimetry (MTV) measurements using Integral Imaging. This technique permits the measurement of the 3D-2C velocity field in an axi-symmetric stagnation jet and observed profiles agree well with analytical predictions. Standard reconstruction algorithms are compared against more advanced deconvolution algorithms and impressive improvements in reconstructed probe resolution are obtained. Integral imaging is compared with a scanning confocal microscope which serves as a basis of comparison and good agreement is achieved. The flow facility was designed for a low Reynolds number, but with an adjustable viscous length scale comparable with higher Reynolds number flows. Our instrument proves capable of resolving viscous length scales on the order of 30 micrometers which can be improved by increasing the numerical aperture of the microscope objective.
Shear Rate Imaging Using A Polarization Camera And A Birefringent Aqueous Cellulose Nanocrystal Suspension
Authors: Lane C. , Baumann F. , Rösgen T.
Published: July 2023

Two aqueous cellulose nanocrystal suspensions are used to experimentally measure the shear and strain rates in a two-dimensional fluid flow. Cellulose nanocrystals are rod-like particles that align when subjected to shear, whereas at rest, they are randomly orientated by Brownian motion. The alignment causes birefringence, a phenomenon also known as flow-induced birefringence. The amount of birefringence is measured using a rotatable linear polarizer and a polarization camera. The linear polarizer is rotated to nine different positions. At each position, light from a light source becomes linear polarized before entering the birefringent fluid. Because of the birefringence the state of polarization is changed. This change is measured by the polarization camera. From the nine measurements the two-dimensional birefringence distribution is determined and from the amount of birefringence the strain rate is derived with the help of the data published by Lane et al. (2022a). We define Λ_0 as the angle between the (maximum) strain rate and the direction of flow. A shearing flow leads to Λ_0=45°, whereas Λ_0=0° and Λ_0=90° describe a flow down the centerline of a symmetrically converging and diverging channel, respectively. The measured strain rates are compared to simulations. The reference data in (Lane et al., 2022a) was taken at Λ_0=45°. For Λ_0≈45°, measurements and simulations correspond well to each other. If Λ_0≈0° is assumed, measured strain rates appear too high whereas they are too low for Λ_0≈90°. These results may be of interest for two reasons. First, shear rate imaging gave satisfying results in areas where Λ_0≈45°. Therefore, we propose the study of shear rates in a two-dimensional shearing flow by means of the presented method. Second, the results indicate that the flow state affects the degree of particle alignment and thus birefringence. This finding is in line with the statements made by Wayland (1960, 1964). The study of particle alignment and its influencing factors is of interest, and the experimental approach presented here is thought to be practicable for such studies.
Stereoscopic MicroPIV Measurements In A Labyrinth-Chanel Dripper Used In Micro-Irrigation Systems
Authors: Ergin G. , Amielh M. , Tomas S. , Al-Muhammad J. , Lasserre J.-J. , Anselmet F.
Published: July 2023

Small serpentine-shaped channels used in drip irrigation is an efficient irrigation technique in order to spare water. Eventual clogging in such micro channels should be avoided to extend the lifetime of these irrigation systems. Clogging often occurs when sedimentation takes place in low or zero velocity regions in steady laminar flow conditions. For this reason, labyrinth dripper designs are used to enhance mixing and / or induce unsteady flow conditions inside the channel. The aim of the present study is to investigate the flow inside such millimetric complex channel geometry with Stereoscopic MicroPIV measurements. Current three-component (3C) velocity measurements are compared with previous two-component (2C) velocity measurements. Results indicate that the u and v components of the 3C measurements are in good agreement with the previous 2C measurements, identifying and confirming the previously measured low- and zero-velocity regions. Furthermore, the out-of-plane (w) velocity component adds new information about the flow field revealing three-dimensional (3D) flow structures, what appears to be oblique vortices emanating from the baffle tips. In conclusion, both enhanced mixing due to 3D vortices and induced unsteady flow field seems to be responsible for clogging suppression.
Reconstruction of The Ice Front Within an Icing Droplet Using High Speed Laser Induced Fluorescence Imaging
Authors: Stiti M. , Labergue A. , Lemoine F. , Castanet G.
Published: July 2023

An experimental setup is implemented in order to study the solidification of a drop impinging a subcooled substrate. One of the major problems relying the study of droplet solidification consist of the visualization of the solidification front within the droplet. Indeed, shadowgraphy measurement only allows the observation of the solidification front along the tri-junction liquid/solid/air. The use of the Laser Induced Fluorescence provides information on the evolution of the horizontal solidification front in a droplet over t ime. The images reconstruction of the solidification front is made by using two high-speed cameras (side view and top view). The measurements allow for the first time to observe the evolution of the solidification front geometry over t ime. The measurements, carried out on a duralumin substrate, were then compared with a 2D numerical model taking into account the heat transfers conjugated with the substrate.
Feasibility Of Multi-Aperture µPTV For Wall Shear Stress Measurements
Authors: Klinner J. , Willert C.
Published: July 2023

We present a feasibility study on 3d 3c micro PTV for boundary layer flows using a single high-speed camera with a microscope lens. Multi-aperture µPTV (MA-µPTV) relies on the “defocusing” concept (Willert & Gharib, 1992) and determines the wall distance of a particle from the size of projected particle image triplets generated by placing an triplet aperture on the entrance pupil of a microscope objective. Illumination with a high-speed pulsed laser is introduced through the same window used for imaging. The calibration of the orientation and size of the particle image triplets is described and accounts for variation of both with lateral image position and wall distance. Geometrically constrained templates of 2d Gaussians are used to provide least square fitting of triple image intensities, thereby iteratively improving the initial centers and depth position of each particle. In addition to Gaussian weighting, the convolution of a Gaussian and a Lorentzian is studied, that latter of which is considered promising for modeling defocused particle images at large distances from the focus. Lagrangian particle tracks are reconstructed from 3d particle positions using state-of-the-art tracking procedures. Comparative profile-PIV measurements provide reference measurements including estimates of the wall shear stress. A comparison with PIV flow statistics is possible by bin-averaging the velocities of the particle tracks in the wall-normal direction. Mean wall shear rates obtained from MA-µPTV and using single-line cross-correlation on the PIV data are in good agreement and within the uncertainty of the flow parameters. Statistics from bin-averaged velocities of all tracked particles indicate consistency with profile-PIV and agree well with DNS data up to wall distances of 30 wall units.
An Imaging Technique For Characterizing Viscoelasticity Of Drag-Reducing Solutions
Authors: Warwaruk L. , Ghaemi S.
Published: July 2023

Existing rheometric measurement techniques that use load and displacement sensors are unable to resolve the non-Newtonian features of dilute drag-reducing solutions. In the present investigation back-lit particle image velocimetry, or particle shadow velocimetry, was used to quantify the complex dynamics of these fluids in a novel flow geometry. The flow of three non-Newtonian solutions were investigated in a periodically constricted tube (PCT). The radius of the tube walls was sinusoidal with respect to the streamwise direction. The three fluids under consideration were aqueous solutions of a flexible polymer, rigid polymer and surfactant, all of which were previously shown to instill drag reduction in a high Reynolds number, turbulent channel flow. Three solutions with mass concentrations of 0.01%, 0.03% and 0.05% were considered for each additive. Steady shear viscosity measurements demonstrated that all rigid and flexible polymer solutions were noticeably shear-thinning, while the surfactant solutions had a water-like shear viscosity. Each solution was measured at five Reynolds numbers between approximately 1 and 100 within the PCT. Relative to Newtonian fluids within the PCT, the rigid polymer solutions produced a plug-like flow with a blunted velocity and attenuated vorticity at radial coordinate further from the tube centerline. The flexible polymer solution, known to have appreciable amounts of elasticity, demonstrated a distinct chevron shaped velocity contour, coupled with a negative vorticity pattern within the contraction regions of the PCT. Despite having a seemingly Newtonian shear viscosity, the surfactant solutions produced velocity and vorticity patterns reminiscent of the flexible polymer. The general implication is that surfactants share similar elastic traits as flexible polymers. The vorticity transport equation was used to derive distributions of the non-Newtonian torque, more commonly called the `polymer torque' in other literature. It was revealed that the non-Newtonian torque was the source of vorticity field disruption in the flows of flexible polymer and surfactant solutions.
Defocusing μPTV With Increased Measurement Depth Using Shadowgraphy
Authors: Fuchs T. , Burkhardt C. , Kähler C.J.
Published: July 2023

In this study we can show that shadowgraphy is a feasible alternative to fluorescence for microscopic particle imaging. Furthermore, using the particle shadow image geometry (diameter for defocusing methods or axis lengths for astigmatism methods), the particle location along the optical axis can be determined, enabling a three-dimensional flow measurement with a single camera. However, the rate of change of the particle shadow image geometry as a function of the distance to the focal plane is one order of magnitude smaller as compared to fluorescence/scattering imaging approaches, such that the measurement depths is effectively increased. This increase is due to the fact that the signal to noise ratio of the relatively small particle shadow images is large, even if the particle is located far away from the focal plane, as the intensity is distributed over a small sensor area. In addition, due to their smaller dimensions, more particle shadow images can be captured on the camera sensor, yielding a larger information density for microscopic particle imaging. A measurement of a micro-channel (channel height: 650 µm) flow showed a good agreement with the ideal parabolic flow profile, proving the viability of this microscopic particle shadow imaging approach as a suitable addition to the existing fluorescence-based methods.
Online Event-Based Insights into Unsteady Flows with TrackAER
Authors: Rusch A. , Rösgen T.
Published: July 2023

We present a novel event-based quantitative flow visualization system, TrackAER, capable of continuously reconstructing, rendering and recording particle tracks in large test volumes and without limitations to the measurement duration. Multiple event-based cameras are synchronized and calibrated to produce independent and asynchronous, yet temporally co-registered data streams of flow tracers. Subsequently, these data streams are merged into time-resolved 3D particle tracks using photogrammetric techniques. Due to the operating principle of event cameras, the flow scenery is reduced to moving objects only, which effectively compresses the data stream at the camera source. In combination with an efficient data processing pipeline, the measurement system operates online. That is, the investigated flow field is reconstructed and rendered in an interactive 3D viewer without noticeable time lag. The data processing approach follows a “per-event” paradigm and is achieved in real-time, enabling the immediate observation and analysis of both, transient and long duration flow features. Specific issues resulting from event-based, frame-free processing are discussed as well as the advantages and limitations of event cameras. Exemplary results of two different test cases are provided to demonstrate the utility of the TrackAER system in- and outside a wind tunnel, where Lagrangian particle track information is displayed in a virtual scene together with extracted quantitative information such as local flow velocities.
Tracer-Based High-Speed Laser-Induced Fluorescence Measurements Of Temperature And Fuel Concentration Fields In A Rapid Compression Expansion Machine
Authors: Retzer U. , Ulrich H. , Will S. , Zigan L.
Published: July 2023

Tracer planar laser-induced fluorescence (PLIF) using 1-methylnaphthalene (1-MN) is applied to study temperature and fuel courses during compression in a rapid compression expansion machine (RCEM). A burst mode Nd:YAG-laser at 266 nm is utilized for excitation of tracer fluorescence at a repetition rate of 7.5 kHz. A high-speed intensified CMOS camera equipped with an image doubler is applied for 2-color LIF (2c-LIF). The measurements were conducted in nitrogen atmosphere for which a calibration curve is presented that was generated in a flow cell. The temperature and fuel concentration fields are very homogeneous at early points in time during compression, however, inhomogeneities in terms of millimeter-sized hot and cold gas regions can be found especially near top dead center (TDC). These inhomogeneities were also visible in the fuel partial density field and are due to the distinct heat transfer between the hot gas and the cool walls, and probably also because of roll-up vortices induced by the piston movement. Especially at TDC the minimal gas temperature is about 300 K lower than the peak temperature near the cylinder head. These temperature differences are much larger than in piston engines and in other RCEMs reported in the literature at comparable conditions. This is because of the special design of the present layout of the machine. A relatively large difference to the adiabatic temperature can be overserved particularly at TDC. About 70 K lower temperatures were measured, which can be explained by these temperature inhomogeneities in the cylinder.
Three-Dimensional Measurement Of A Stress Field In A Rectangular Channel Flow Using A Photoelastic Method
Authors: Nakamine K. , Yokoyama Y. , Muto M. , Tagawa Y.
Published: July 2023

The hydrodynamic stress field of a steady laminar flow in a rectangular channel was experimentally measured by using a photoelastic method. For this purpose, following two issues for a mixed solution of photoelastic material, cellulose nanoctystal (CNC), were extensively investigated. The first is to elucidate whether there are any phenomena (trends) peculiar to a CNC mixed solution that differ from those to the solid case. The second is to elucidate the extent to which the stress-optic law holds for CNC mixed solution. As a verification method for the first question, we measured retardation distributions by using a high-speed polarization camera. We compared distributions of measured retardation of a CNC mixed solution (0.5 wt %) (Newtonian fluid) and theoretical secondary-principal stress difference derived from the analytical solution of steady lam- inar flow in a rectangular channel. The results showed that a retardation, which was not affected by stress-oriented phase retardation, appeared in the CNC mixed solution. The reason is considered to be retardation induced by aggregations of CNC particles. This phenomenon is peculiar to CNC mixed solution and does not occur in solids cases. As a method of verification of the second issue, we compared the secondary principal stress difference distribution with the retardation distribution offsetting the effect of the retardation specific to the CNC mixed solution. The result showed that the spatial intensity distributions of both agreed within a relative error of 3.84 %. This indicates that the stress-optic law holds for the retardation offsetting the retardation specific to the CNC mixed solution. To evaluate the validity of the above validation results, we measured the retardation fields of flows at different flow rates (10, 20 ml/min). The measured results agree with theory with relative errors 5.67 % and 3.24 % for flow rates of 10 and 20 ml/min, respectively.
Analysing the Commercial Viability of Tamarind (The Minor Forest Produce) for the Tribal in Jharkhand
Authors: Kerketta Dr Shanta Rani
Published: July 2023

Forest plays a very important role in the socioeconomic lives of Tribal. They collect and sell the forest products in local markets and earn their livelihood. The present study is conducted to study the commercial viability of Tamarind production in Jharkhand taking into consideration both primary and secondary data. The four districts of Jharkhand namely Khunti, Chaibasa, Simdega, and Gumla were selected for the study. Primary data has been gathered through field monitoring carried out in different villages in four districts of Jharkhand. Structured interviews, FGDs (Focus Group Discussions), observation and visit to local markets were also done and used as the tools to closely examine the activities involved in studying the commercial viability of Tamarind in the State. Present study entitled “Analysing the commercial viability of Tamarind” was carried out to understand the commercial value of Tamarind production in Jharkhand, and analyse the benefits derived from the government schemes. Jharkhand, despite being one of the largest tamarind producing state, the involved producers gets very less share in whole of the value chain. This is because of lack of knowledge of market, Less support from co-operatives and Van Dhan Vikas Kendras, no/less information about government schemes and more importantly till date there is no fully mechanized production unit to make the finished products out of the minor forest produce namely Tamarind. The middlemen and wholesalers mostly earn by semi-processing it and then exporting to other states namely West Bengal, Andhra Pradesh, Tamil Nadu, Karnataka, Orissa and Delhi. Keywords: Non-timber forest products, Minor Forest Produce, Minimum Support Price, tribal, Joint Forest Management.
PLANT IDENTIFICATION USING MACHINE LEARNING
Authors: K S Harisha
Published: July 2023

The preservation of therapeutic plants is crucial as it will help a broad variety of sectors, including medicine, botanic research, and plant taxonomy studies, among others. Existing technologies cannot imitate the range of therapeutic plant species present in India. The suggested technique facilitates the classification of medicinal plants by exploiting textural aspects crucial in leaf recognition and identification. The three key phases of the proposed technique are picture enhancement, feature extraction, and classification. The photographs of the leaves are shot using cellphones and then processed using digital image processing algorithms to extract the features that may be compared between them. Finally, the CNN classifier is employed to develop an automated classifier. Key Words: Plant identification, CNN algorithm, Image processing.
CURRENT IMPACT OF COVID 19 ON EDUCATION IN INDIA
Authors: Rai Dr. Ashish Kumar
Published: July 2023

Educational institutions (schools, colleges, and universities) in India are currently based only on traditional methods of learning, that is, they follow the traditional set up of face-to-face lectures in a classroom. Although many academic units have also started blended learning, still a lot of them are stuck with old procedures. The sudden outbreak of a deadly disease called Covid-19 caused by a Corona Virus (SARS-CoV-2) shook the entire world. Around 35 crore learners stopped to move schools/colleges/University and all educational activities halted in India. The outbreak of COVID- 19 has taught us that change is inevitable. It has worked as a catalyst for the educational institutions to grow and opt for platforms with technologies, which have not been used before The World Health Organization declared it as a pandemic. This situation challenged the education system across the world and forced educators to shift to an online mode of teaching overnight. Many academic institutions that were earlier reluctant to change their traditional pedagogical approach had no option but to shift entirely too online teaching–learning. The article includes the importance of online learning and Strengths, Weaknesses, Opportunities, & Challenges (SWOC) analysis of e-learning modes in the time of crisis. This Research paper also put some light on the growth of EdTech Start- ups during the time of pandemic and natural disasters and includes suggestions for academic institutions of how to deal with challenges associated with online learning. The Research paper will attempt an analysis of Origin of Covid-19, its impact on education, Role and importance of Internet during covid-19, internet barring in Kashmir, and more importantly this paper will through a shift of light to the important scenarios of Covid-19. Keynotes: Orgin of covid-19, positive and negative impact of covid on education, internet connectivity in J@K, Life of Private University Professor.
Machine Learning-based Prognosis for Early Detection of Heart Disease – A Comparative Study
Authors: R Hemasri
Published: July 2023

Medical analysis is occasionally cited as a valuable source of insightful data. Coronary heart disease (CHD), a common and serious complication of diabetes mellitus type 2 (T2DM), is one of the most common chronic conditions characterized by an imbalance in insulin secretion. T2DM commonly has poor outcomes and even fatalities as a result of these complications. Identification of those who have an a higher risk of CHD problems is becoming more and more important due to the enormous number of people with T2DM, but a predictive method is still lacking. Early detection of CHD can help reduce mortality rates because it is one of the main causes of death in the globe. The challenge arises from the complexity of the data and relationship prediction using conventional methods. The purpose of this project is to use machine learning (ML) technologies and historical medical data to predict CHD. This study's primary objective is to identify correlations in CHD data using supervised learning methods such as Support Vector Machines (SVM), Decision Trees and Ensemble Classifiers. The researched ML techniques produce intelligent models. Empirical results demonstrate that probabilistic approaches are promising in diagnosing CHD using a variety of performance assessment parameters. Key Words: heart, health, machine learning, ensemble
UTILISATION OF RECYCLED MATERIALS IN ROAD DEVELOPMENT
Authors: Shivaram Pailla
Published: July 2023

With the evolution of the road industry and growing traffic on roads, construction materials have also been evolved and more unconventional ingredients have been incorporated. The rationales was the scarcity of conventional natural materials and the jeopardized environment which have underpinned the tendency towards evaluation other materials resources to be incorporated in the road industry. The inclusion of such materials entails several secondary and tertiary materials. Several waste by-products and materials have been investigated, assessed, evaluated for utilizations and practiced in the field. Depending on the attributes of the characteristics of the recycled material, the inclusion varies. Some recycled material have been proven to possess preferable properties over the other and have performed satisfactorily in the field. However, there are numerous concerns regarding such incorporation based on both laboratory experimental, and field observations which have turned out to be of the essence for further in depth studies. In the present study experimental investigation of sub grade soil determined soil characteristics by using recycled materials like fly ash and plastic waste. The percentage of fly ash and plastic waste used is 0%FA+0%PW, 5%FA+1%PW, 10%FA+2%PW, 15%FA+3%PW and 20%FA+4%PW. The comparison of soil characteristics like liquid limit, plastic limit, standard compaction, un confined compressive strength and CBR test vales are determined for various percentages of recycled materials KEYWORDS: recycled material, sub grade soil, fly ash, plastic waste
RFID BASED SMART LIBRARY
Authors: B MD IRSHAD HUSSAIN
Published: July 2023

Library circulation is low because of the tedious and time-consuming nature of the institution's traditional management. In addition to being waterproof and anti-magnetic, the Radio Frequency Identification (RFID) labels can be encrypted, have a huge storage capacity, and more. Using RFID as a foundation, we develop a comprehensive system architecture that takes into account the hardware and software requirements of the university library. The RFID system streamlines library operations by adding intelligence and automation. Using RFID middleware, the system is able to integrate RFID and library management in a natural way, resulting in a library management system that is both efficient and scalable. In order to demonstrate the system's overall functionality and each of its sub-functions, the use case diagram is a ground breaking concept. System for managing libraries and identifying books via radio frequency (RFID) The proposed system is based on RFID readers and passive RFID tags that are able to electronically store information that can be read with the help of the RFID reader. This system would be able to issue and return books via RFID tags and also calculates the corresponding fine associated with the time period of the absence of the book from the library database
EMPIRICAL ANALYSIS OF THE EFFICIENCY OF THE BANKING SECTOR IN WESTERN BALKAN COUNTRIES
Authors: İMERİ Berkan
Published: July 2023

There is no doubt that financial intermediation plays a crucial role in the economy of both developed and developing countries. At the same time, the banking sector represents the leading financial intermediary through which developing countries can enhance or boost economic growth in their country. In addition, importance is given to the profitability and efficiency of the banking sector for fulfilling such macroeconomic objectives of the country.

In this regard, the main objective of this study is to analyze the efficiency of the banking sector of Western Balkans countries by utilizing secondary data collected from the official reports of the National Banks of the respective countries for the period 2004 – 2020. Thus, Data Envelopment Analysis was implemented to analyze the efficiency of the banks in Western Balkan for the period 2004 – 2020. Moreover, DEA results conclude that banks in Western Balkans operate at a good efficiency level due to an average score above 85% from 2004 – 2020. Montenegro had a continuous high-efficiency score during the last five years, followed by Serbia, Bosnia and Herzegovina, Kosovo, Albania, and North Macedonia.

Due to the results of the efficiency of the banking sector of the Western Balkans and the specific analysis of the Republic of North Macedonia case, specific policy recommendations are given in this regard to enhance the higher efficiency of the banks in the Republic of North Macedonia.
The Relationship of Stress Level to the Incidence of Pityriasis Capitis (Dandruff) in Students at SMK Panca Karsa Sungai Pinyuh
Authors: S Amalia Putri , Sinaga Jojor Putrini , Liana Delima Fajar
Published: July 2023

Stress is a condition of disturbing the balance of organisms that involves physiological or psychological tension caused by internal or external factors. Stress is one of the factors that can trigger the incidence of Pityriasis capitis. The level of stress is closely related to the high activity of sebaceous glands which results in changes in temperature and humidity on the scalp. To know the relationship between stress level with the incidence of Pityriasis capitis (dandruff) among female student of Vocational and Pre-Professional High School Panca Karsa Sungai Pinyuh. Observational analytic research with approach design research type cross-sectional. A total of 50 people was involved in this experiment. Independent variable was stress level, and dependent variable was Pityriasis capitis (dandruff) incidence among female students at Vocational and Pre-Professional high school Panca Karsa Sungai Pinyuh. From 50 people, it was found that Pityriasis capitis occurred respondents with normal stress level about 42,9%. The results of the Kolmogorov-Smirnov comparative test showed a significance value of p = 0.591 (p> 0.05) indicating that there was no significant relationship between stress level and Pityriasis capitis (dandruff). There is no relationship between the level of stress with the incidence of Pityriasis Capitis (dandruff) among female students at Vocational and Pre-Professional high school Panca Karsa Sungai Pinyuh.
Comparison of the Effectiveness of Taro Leaf Stalk Extract (Colocasia Esculenta) with Gentamicin Sulfate Cream in the Wound Healing Process in White Rats
Authors: Paudilah Paudilah , Raviah Nur , Lestari Dwiana , Lestari Setiawati , Parliana Parliana
Published: July 2023

The purpose of this study was to determine the comparison of the effectiveness of taro leaf stalk extract (Colocasia esculenta) with gemtamicin sulfate cream in the wound healing process in white rats. This research is a quantitative research with a pure experimental approach. The results of this study consisted of the results of a comparison of the area of early and late wounds in the research rat group, the results of a comparison of the initial wound area and the average wound for 14 days, the results of a pre-post comparison with the research rat group. The results of research on the wound healing process using taro leaf stalk extract stated that the ratio of wound area at the beginning and end between taro petiole extract and control (NaCl) was insignificant, this is because 0.9% Nacl fluid is an effective physiological fluid for wound care by maintaining moisture, keeping granulation dry so that the wound remains in a balanced state that is not dry nor wet.
Factors Causing Drugs Among Adolescents in Bandar Lampung City
Authors: Zainudinhasan Zainudinhasan , Adnan Alinda Julietha , Amanda Mutiara , Sadhana Putu
Published: July 2023

One of the problems that occurs in Indonesia is drug abuse. The meaning of Narkoba is psychotropic narcotics and other addictive substances. Narcotics or drugs are used as medicinal ingredients and research in medical science. As the years go, the drugs are abused by irresponsible people, causing side effects that are quite dangerous for people. The most users of drugs are teenagers where the teenagers who should be the nation’s relay are destroyed because of drugs.
Predict GO-JEK Driver Income Level in the Bali Region using Decision Tree
Authors: Darmawan I Dewa Gede Ngurah Bramasta , Ratnawati Dian Eka
Published: July 2023

The work in the transportation industry is one of several that is impacted by information technology, which is now developing quickly. The emergence of information technology in the transportation industry led to the creation of GO-JEK. GO-JEK is growing in popularity with the general public because, in addition to offering a wide range of services, it also creates new jobs with more flexible working hours for the community. Of course, each driver's income from working as a GO-JEK driver is unique. However, a number of things can have an impact on this income. With a focus on the Bali region, this study tries to forecast income levels for drivers of GO-JEK. J48 algorithm is used to process the data, producing a decision tree with 19 rule models. An accuracy value of 77.61%, a precision value of 78.95%, a value recall of 81.08%, and an AUC value of 0.808 are obtained from the rule model test utilizing the confusion matrix and ROC/AUC curve. These results demonstrate how effective the decision tree and rule model are.
Analyzing Learning Media for The Elderly
Authors: Nugraha Edwin , Anneke Rantung Dyoys , Naibaho Lamhot
Published: July 2023

The church must be able to accommodate the spiritual needs of the elderly. The church needs to pay attention to learning media for the elderly so that they can understand the preaching of God's Word well and even feel closer and calmer with God in their daily lives. The purpose of this study is to explain the essence and purpose of using learning media in the context of the elderly, understand the special characteristics and challenges faced in using learning media for the elderly, provide practical guidance in applying various types of learning media for the elderly, analyze the use of special learning media for the elderly, and explore its implementation in the context of Christian Education. The chosen research methodology is literature research, which involves examining and incorporating ideas and viewpoints from various authors of books and articles. These sources serve as valuable references for our study in the field of literature. From the research findings, it can be concluded that educators or pastors need to have a deep understanding of the background of learning problems experienced by the elderly. This is important so that they can choose the type and characteristics of learning media that are appropriate and suitable for the elderly. Regardless of the form of learning media chosen, it is important to pay attention to the needs according to the physical and psychological conditions of the elderly.
The Effect of Corruption Prevention Efforts with Regional Corruption Cases and Complaints
Authors: Astuti Dwi Aprillia Linda , Winoto Joyo , Suprehatin Suprehatin
Published: July 2023

One of the obstacles in the business sector in Indonesia is corruption. Efforts to eradicate corruption are carried out through education, prevention and prosecution strategies or known as the TRISULA strategy. One of the corruption prevention efforts carried out by the KPK is through the Monitoring Center for Prevention (MCP) with eight areas. This study aims to analyze the relationship between prevention and complaints and regional corruption cases. This study uses secondary data. Secondary data consists of the Regional Corruption Prevention Index, complaints, and regional corruption cases handled by the KPK in 34 provinces in Indonesia, 2018 – 2022. Primary data was obtained through a survey with purposive sampling in 22 local governments. Data were analyzed using regression analysis with e-VIEWS software. The results of the study show that the areas of prevention that have an influence on corruption complaints are planning and budgeting, procurement of goods and services, supervision of the Government Internal Supervisory Apparatus (APIP), and management of regional property. The prevention area that has an influence on corruption cases is the procurement of goods and services.
To Whale or Not to Whale: Repeated Purchase Behavior Paid Players in Genshin Impact
Authors: Prilian Elvin Eka , Dani Mario , Prameswari Runi , Manaf Peri Akbar
Published: July 2023

Online games are a means of entertainment for people of all ages and can be easily accessed by anyone. Games or online games that are becoming a trend today are socially interactive video games. These online games invite friends, family, and others to join and participate in ongoing games. This study investigates factors influencing repurchase decisions and intentions among online game players, Genshin Impact, in DKI Jakarta. A quantitative research method was employed, utilizing Partial Least Square with SmartPLS software, and a sample of 500 respondents was analyzed. The variables examined include online game service, game authenticity, social influence, facilitating online conditions, hedonic motivations, price value, habit, repurchase intention, and repurchase decision. The findings reveal that game authenticity, facilitating online conditions, and habit positively influence repurchase intention, while online game services negatively affect it. However, social influence, hedonic motivation, and price value do not significantly impact repurchase intention. In terms of repurchase decisions, facilitating online conditions, hedonic motivation, price value, and repurchase intention have a positive influence, whereas social influence and habit exert a negative effect. Online game services and game authenticity do not significantly influence repurchase decisions. The study also found that repurchase intention mediates the positive impact of game authenticity, facilitating online conditions and habits on repurchase decisions, and the negative impact of online game service on repurchase decisions. However, it does not mediate the effects of social influence, hedonic motivation, and price value on repurchase decisions.
Restay Decision Influenced by Social Media and e-WOM Intervened by Satisfaction at Marinsow Homestay
Authors: Matu Ivanry , Pradiani Theresia , Fathorrahman Fathorrahman
Published: July 2023

Tourism has become a leading sector in driving economic growth. Repeat stays are critical for the continuity and economic growth of homestay businesses in the Likupang Super Priority Tourism Destination area. This study aims to examine the influence of social media and electronic word of mouth (e-WOM) on repeat stay decisions, mediated by tourist satisfaction. The study involved 120 respondents who had stayed at Marinsow Homestay Likupang, North Minahasa, at least twice. Data were collected through questionnaires and analyzed using path analysis. The results showed that social media and e-WOM have a positive and significant effect on tourist satisfaction, tourist satisfaction has a positive and significant effect on repeat stay decisions, social media has a significant effect on repeat stay decisions, and e-WOM has a positive and significant effect on repeat stay decisions for tourists staying in homestays.
Pengembangan Media Pembelajaran Berbasis Animaker pada Mata Pelajaran Komputer dan Jaringan Dasar di SMK Negeri 1 Gunung Talang
Authors: Retno Wafiq Windya , Mulyono Heri , Rini Faiza
Published: July 2023

Tujuan penelitian ini dapat mengembangkan metode pembelajaran komputer dan jaringan dasar menjadi menarik. Penelitian yang dilakukan merupakan jenis penelitian pengembangan memiliki tujuan mengembangkan produk atau menyempurnakan produk yang sudah ada. Penelitian ini menggunakan metode penelitian dan pengembangan (Research and Development). Penelitian pengembangan Research and development (R&D) adalah metode penelitian yang bertujuan untuk menghasilkan produk tertentu dan menguji keefektifan produk tersebut. Hasil penelitian ini yaitu Hasil uji validitas oleh materi memperoleh nilai sebesar 0,814 dengan kategori “valid” sedangkan uji validitas oleh ahli media memperoleh nilai sebesar 0,935 dengan kategori “valid”. Berdasarkan kategori skala likert media pembelajaran berbasis Animaker dapat diimplementasikan valid untuk digunakan.