bluuebunny/crossref_metadata_2025 huggingface dataset:
The role of Street condition and forms on the amount of carbon emissions released from vehicles
Authors:   Department of Architecture Engineering, The British university in Egypt (BUE), El-Sherouk City,  11837, Egypt, Moussa Rania Rushdy
Published: September 2021

In the last two decades, the percentage volume of carbon emissions has increased from 280 to more than 380 parts per million in the atmosphere, the problem is that it is still increasing daily in which it caused many environmental hazard that has been seen the last couple of years. The end of this century, It is expected that the uncontrolled amount of emissions emitted to the atmosphere will increase the surface temperature of plant earth by 3.4ºC. Worldwide, the percentage of carbon emissions in the atmosphere and its effect on air quality has been the main concern of scientist and researchers in the past decade. Egypt, is one of the biggest emitters that surfer from atmospheric pollution, almost 24% of the atmosphere pollutants in Egypt is from the transportation sector due to the heavy use of fossil fuels. Reducing the roads carbon emissions through streets design and form is the main scope of this research. This research intend to control the amount of carbon emission released in air by vehicles through controlling vehicles speed and motion which is effected by the street design and form. The presented research analysis the relation between carbon emissions and streets condition and forms, through measuring the amount of CO2 and CO emission produced in one of the Egyptian roads from different types of vehicles in road with three different conditions. El-Shuhada Street has been chosen to be the study area of this research. The researchers used Testo 315-3 to measure the Carbon emissions in the street and to identify the relation between CO2 emission and street condition and form. The results reveled that straight routes with vehicale speeds ranged between 80 to 100 kn/h produces less carbon emissions then straight routes with street bumps and vehicle speed ranged between 26 to 19 km/h. Moreover, curved routes emitted more emission than straight routes
AiStudy on the Behavior of an Underwater Explosion Bubble near a Rigid Wall
Authors:   Department of Marine Mechanical Engineering, ROCiNaval Academy, Taiwan, Hsu Ching-Yu , Liang Cho-Chung ,   Department of Mechanical and Automation Engineering, Da-Yeh University, Taiwan, Duy Vo-Phuong ,   Department of Mechanical and Automation Engineering, Da-Yeh University, Taiwan
Published: September 2021

The dynamic approach to an underwater explosion (UNDEX) is a complex episode that involves shockwave propagation, bubble pulse with high pressure, and water jet impact. This paper proposes linkage of Finite Element Avenue (FEM) and Companion of Eulerian-Lagrangian (CEL) to supply promised data of large deformations and flow simulation of fluid and gas where the bubble interaction is near a stiff wall. To conduct the process, a 7.5 m x 9.0 m Eulerian domain and explosive charges of 10 g, 35 g, and 55 g TNT are built in a free field, respectively. Numerical analysis, as far as a comparison with research from E. Klaseboer, has been given in this study. The important results obtained from the CEL approach imply high expectations. In spite of the fact that this approach is not adequately consistent to totally supplant a live test, it can be utilized as an outline database to anticipate outcomes of managing an UNDEX with a high pressure bubble. The behavioral explosion from an UNDEX bubble near a rigid wall is a prospective contribution in this research. With these results, this technique can be used in further studies to examine UNDEX bubbles in the vicinity of deformable and complex structures.
Management of the engineering data for manufacturing
Authors:   Marmara University, Faculty of Technology, Department of Mechanical Engineering, Goztepe Yerleskesi, 34722  Kadıköy/İstanbul/Turkey, ATAKOK Gurcan , CUN Mufit ,   Marmara University, Faculty of Technology, Department of Mechanical Engineering, Goztepe Yerleskesi, 34722  Kadıköy/İstanbul/Turkey
Published: September 2021

Most companies have adopted the use of computer integrated engineering software to cope with the increasing competition and pressure to produce better quality and at a faster rate, enhancing their systems on this basis. Models are designed on computers, designs are validated in the software and tool paths for manufacturing are generated in different specific software. All engineering information is generated and stored in computers. This development enhances faster rate of works in companies; however, some problems such as the management of the data arise. All departments in a business work separately, but for the same purpose. It is required for each department to have access to related information. The existence of a system in which the information is checked and managed depending on their creation time, versions and the department is of importance. In this article, a system that allows not only the mechanical design department but also the manufacturing, storage, process planning, quality control, electrical design, purchasing departments, etc. to have access to the required information has been developed. In the absence of this kind of system, loss of time, scraps and loss of engineering time would be investigated. After starting up the system, its benefits are defined. Tracing the workflows for management purposes would be handled by the system. A 'Validation of Design' process is modelled for the company. The information can be accessible to only those responsible for the data, and not anyone else. This allows users to work in a better environment, hence, increases productivity.
Prediction and Forecasting of Air Quality Index in Chennai using Regression and ARIMA time series models
Authors:   School of Electrical Engineering, Vellore Institute of Technology, Vellore, Mani Geetha , Viswanadhapalli Joshi Kumar ,   School of Electrical Engineering, Vellore Institute of Technology, Vellore, Stonie Albert Alexander ,   Department of Electrical and Electronics Engineering, Kongu Engineering College, India
Published: September 2021

Air is one of the most fundamental constituents for the sustenance of life on earth. The meteorological, traffic factors, consumption of non-renewable energy sources, and industrial parameters are steadily increasing air pollution. These factors affect the welfare and prosperity of life on earth; therefore, the nature of air quality in our environment needs to be monitored continuously. The Air Quality Index (AQI), which indicates air quality, is influenced by several individual factors such as the accumulation of NO2, CO, O3, PM2.5, SO2, and PM10. This research paper aims to predict and forecast the AQI with Machine Learning (ML) techniques, namely linear regression and time series analysis. Primarily,Multi Linear Regression (MLR) model, supervised machine learning, is developed to predict AQI. NO2, Ozone(O3), PM 2.5, and SO2 sensor output collected from Central Pollution Control Board (CPCB) – Chennai region, India feed as input features and optimized AQI calculated from sensor's output set as a target to train the regression model. The obtained model parameters are validated with new and unseen sensor output. The Key Performance Indices(KPI) like co-efficient of determination, root mean square error and mean absolute error were calculated to validate the model accuracy. The K-cross-fold validation for testing data of MLR was obtained as around 92%. Secondly, the Auto-Regressive Integrated Moving Average (ARIMA) time series model is applied to forecast the AQI. The obtained model parameters were validated with unseen data with a timestamp. The forecasted AQI value of the next 15 days lies in a 95 % confidence interval zone. The model accuracy of test data was obtained as more than 80%.
HEALTH EFFECT OF EMISSION FROM ELECTRIC AND BIO-DIESEL VEHICLES – A REVIEW
Authors:   Department of Mechanical Engineering, Kongju National University, Cheonan  Campus, South Korea., Mandal Adhirath , Cho HaengMuk ,   Department of Mechanical Engineering, Kongju National University, Cheonan  Campus, South Korea.
Published: September 2021

The transport vehicles have been using the internal combustion engine for many decades. The internal combustion engine is used because of their high reliability. The transport sector plays a vital role in the country’s economy. It is estimated that about 90% of the transportation sector uses fossil fuels. With the increasing industrialization, there will be a shortage of fossil fuels. Every year there is an increase in the energy demand by 2%, stated by International Energy Agency Report. There would be 39% increase in the greenhouse gas emission by the year 2030 from fossil fuels. With the rising concern about climate change and the increasing amount of toxic emissions, manufacturers of the car are getting aware and are shifting towards less polluting vehicles or green vehicles. Biodiesel is also gaining interest and is being preferred because of its continued availability, emission characteristics showed that biodiesel have low CO emission. With addition of ethanol the emission of CO further decreases but NOx emission increases. NOx decreased with jatropha methyl ester & 50% turpentine oil. On the other hand use of electric vehicle or hybrid electric vehicle would also decrease the emission by 51% but would increase the load on power grid by 3% for every 30% penetration. Which would increase the emission/air pollution from the thermal power plant. Emission in the human body can cause illness, increase the death of can be hazardous to the health of humans. This paper gives a review of the emissions from biodiesel and electric vehicles and the health effects
Investigation of helical strut attached vena cava filter hemodynamic performanc
Authors:   Department of Energy Systems Engineering, Karabuk University, 78050, Karabuk, Turkey., Selimli Selcuk
Published: September 2021

Hemodynamic performance of the Celect Platinum vena cava filter and the revised forms of it with helical flow inducer strut were studied with computational fluid dynamic software Ansys Fluent 18. The central velocity and shear stress increased but overall flow disturbance has been observed minimal level. Central velocity increases to 9.72% with Celect filter, by the single helical flow inducer strut the rate reaches to 14.69%, and with doubled form it reaches to 19.73%. The filter surface shear rate increases to 8.29% with the single helical flow inducer strut and increases 13.31% with doubled attachment. Increased velocity and shear stress on the filter may eliminate short term thrombus build-up problems by breaking the big size particulates with the high shearing forces. The new struts may also contribute to the ability of the filter to capture smaller clots, as well as to dissolve them from being bigger. Shear stress in the vein wall increases approximately 6.63% with the filter placement. It raises to 8.06% and 9.45% with single and double helical flow inducer strut attachment. Increased vein wall shear may reduce the recirculation and clotting in the vein wall and it may prevent the accumulation of clots. The increased shear stress on the filter may cause the migration problem, design improvements can minimize this risk. Helical flow inducer strut attachment can cause efficacy increase, and the flow are normalized.
CÂNONES EM ROTAÇÃO / Canons turning
Authors: Livia Flores Tadeu Capistrano e
Published: September 2021

Editorial
DO HABITAT NATURAL AO SISTEMA DA ARTE: O CORPO DO ANIMAL COMO EVIDÊNCIA DO COMPLEXO DE MUDANÇAS DO MUNDO / From natural habitat to the art system: the animal’s body as evidence of a changing world
Authors: De Alencar Marco Túlio Lustosa
Published: September 2021

Este artigo situa de que maneira o animal – reconfigurado na forma de objeto de arte – pode ser tomado como evidência do continuum de mudanças que forjaram o mundo. A reprodução “artística” das espécies acompanha o percurso da própria humanidade, e, nos dias de hoje, sua presença estimula novas incumbências para a arte. Obras com essa especificidade têm sido capazes de acionar uma série de problemas de múltiplas conformações, sobretudo, quando os liames de humanos e animais se encontram no foco de instâncias diversificadas. Acompanhando a trajetória desses seres do habitat natural até sua recepção em espaços certificados, vê-se que, no mesmo rumo dos demais artefatos apropriados pelos artistas, trabalhos contendo animais podem ser considerados eminentes para o sistema da arte, a história da arte e a história do mundo.Palavras-chave: Animal na arte; Objetos de arte; História da arte; Arte contemporânea. AbstractThis article situates in what way the animal – reconfigured in the form of an art object – can be taken as evidence of the continuum of changes that forged the world. The “artistic” reproduction of species follows the path of humanity itself and, nowadays, its presence stimulates new tasks for art. Works with this specificity have been able to trigger a series of problems with multiple conformations, especially when the links between humans and animals are the focus of diversified instances. Following the trajectory of these beings from their natural habitat to their reception in certified spaces, one can see that, in the same course as other artifacts appropriated by artists, works containing animals can be considered eminent for the art system, the art history and the history of the world.Keywords: Animal in art; Art objects; Art history; Contemporary art.
MONUMENTOS URBANOS E ARTE PÚBLICA: OS OBELISCOS EM ROTAÇÃO / Urban monuments and public art: the obelisks in rotation
Authors: Pereira Edilson
Published: September 2021

Este ensaio aborda uma forma monumental antiga e muito disseminada no mundo – o obelisco e suas variações – para refletir sobre a importância desse artefato estético e sociocultural até o último século, quando passa a interagir com questões oriundas dos debates propostos pela “arte pública”. Considerando os usos históricos e contemporâneos dos monumentos verticais não figurativos, abordo algumas intervenções e instalações artísticas, focalizando monumentos públicos, para mapear as estratégias de subversão das formas e sentidos a eles atribuídos. Demonstro que certos monumentos são objeto de várias intervenções ao longo do tempo, enquanto algumas instalações artísticas se apresentam como contramonumentos em sintonia com os princípios de participação e debate público que animam os valores democráticos.Palavras-chave: Obelisco; Monumento público; Arte pública; Paisagem urbana; Contramonumento. AbstractThis essay discusses an ancient monumental form and very widespread in the world – the obelisk and its variations – to reflect on the importance of this aesthetic and sociocultural artifact until the last century, when it started to interact with issues arising from the debates proposed by the “public art”. Considering the historical and contemporary uses of vertical non-figurative monuments, I address some interventions and artistic installations focusing on public monuments to map the subversion of the forms and meanings canonically attributed to such artifacts. There are cases in which a monument is the object of several interventions over time, and others, complementary, in which the proposal is to constitute a counter-monument in line with the principles of participation and public debate that animate democratic societies. Keywords: Obelisk; Public monument; Public art; Urban landscape; Counter-monument.
NEM TEATRO NEM CINEMA: A PERFORMANCE NO ESPAÇO DE EXCLUSÃO /Nor theatre nor cinema: performance in the exclusion area
Authors: Vinhosa Luciano
Published: September 2021

Neste ensaio, a partir do curta-metragem experimental Duelo, de Daniel Santiago, em primeiro lugar nos perguntamos o que aproxima a performance ao mesmo tempo em que a diferencia quando apresentada em circuitos de artes visuais ou de teatro. Em segundo lugar, especulamos sobre as diferenças e aproximações entre a atuação de um ator no cinema e a de um  performer. Nesse percurso foi necessário investigar o que seria uma performance. Ao fim e ao cabo, concluímos que, não sendo nem teatro, nem cinema, Duelo é performance filmada que participa das duas instâncias quando surpreendida em suas regiões de contato.Palavras-chave: Duelo; Teatro; Cinema; Performance. AbstractIn this essay, starting from the experimental short film Duelo, by Daniel Santiago, we first ask ourselves what approximates and what differentiates performance when it is presented in visual arts and theater circuits. Second, we speculate about the differences and similarities between the performance of an actor in cinema and that of a performer. After all, we conclude that, being neither theater nor cinema, Duelo is filmed performance that participates in both instances.Keywords: Duelo; Theater; Cinema; Performance.
“AQUI ESTÁ A OPÇÃO DO TERCEIRO MUNDO: UM FUTURO ABERTO OU A MISÉRIA ETERNA”. REFLEXÕES SOBRE A OBRA TARDIA DE MÁRIO PEDROSA / “Here is the Third World option: an open future or eternal misery”: reflections on Mário Pedrosa's late work
Authors: Paladino Luiza Mader
Published: September 2021

A filósofa Otília Arantes nomeou O ponto de vista latino-americano o corpus crítico de Mário Pedrosa produzido após o desterro chileno, durante o governo de Salvador Allende (1970-1973). Nesse conjunto de textos, observa-se a recuperação de tradições que não haviam sido capturadas pela historiografia oficial, como as práticas e os saberes oriundos da cultura popular e indígena. Essa interpretação pode ser identificada em obras como Discurso aos Tupiniquins ou Nambás e Teses para o Terceiro Mundo, nas quais o crítico se amparou em um repertório terceiro-mundista partilhado no exílio. O autor exaltou uma leitura ancorada na inversão geopolítica, a qual localizou nos países situados ao sul uma fagulha revolucionária capaz de deflagrar a almejada transformação social e econômica. Essas obras-manifesto sintetizaram praticamente todo o discurso crítico, político e museológico que Pedrosa sustentou ao voltar para o Brasil, em 1977.Palavras-chave: Exílio; Terceiro Mundo; Arte latino-americana; Mário Pedrosa; Arte popular. AbstractThe philosopher Otília Arantes named The critical corpus of Mário Pedrosa produced after the Chilean exile during the Salvador Allende government (1970-1973) from The Latin American Spot. In this set of texts, there is a recovery of traditions that had not been captured by official historiography, such as the practices and knowledge derived from popular and indigenous culture. This interpretation can be identified in works such as Speech to the Tupiniquins or Nambás and Theses for the Third World, in which the critic relied on a shared Third World repertoire in exile. The critic praised a reading anchored in the geopolitical inversion, which located in the countries located to the south a revolutionary spark capable of triggering the desired social and economic transformation. These manifesto works synthesized practically all the critical, political and museological discourse that the author sustained when he returned to Brazil in 1977.Keywords: Exile; Third world; Latin American art; Mário Pedrosa; Popular art.
ALGUNAS PREGUNTAS SOBRE EL ARTE CONTEMPORÁNEO EN MEXICO TABLEROS, POSICIONES Y CAMBIOS DE JUEGO / Some questions about contemporary art in Mexico. Boards, positions and game changes
Authors: Mata Amanda de la Garza
Published: September 2021

¿Cómo describir una escena compleja, problemática, compuesta de corrientes, placas tectónicas y puntos ciegos? ¿Dónde ocurre el arte?/¿Quiénes están narrando el arte?/¿Institución o independencia?
MATULA CHEIA DE VOZ: A VORACIDADE VOCAL DE GRACE PASSÔ EM VAGA CARNE / A carrier bag full of voice: Grace Passô’s vocal voracity in Dazed Flesh
Authors: Altberg Maria de Abreu
Published: September 2021

No filme Vaga carne (2019), dirigido (em parceria com Ricardo Alves Jr.) e protagonizado por Grace Passô, acompanhamos a jornada de uma voz que tem o poder de transitar por diferentes matérias. Novos e inesperados afetos são conhecidos quando a voz se vê presa a determinado corpo feminino e passa a ser submetida às implicações sociais de encarnar essa identidade. A partir da narrativa do filme, e em diálogo com teóricas como Ursula K. Le Guin, Anne Carson e Adriana Cavarero, o trabalho propõe pensar a afirmação de vozes plurais como enfrentamento poético a silenciamentos históricos.Palavras-chave: Voz; Grace Passô; Vaga carne; Palavra; Corpo. AbstractIn the film Dazed Flesh (2019), directed by Grace Passô and Ricardo Alves Jr., and starring Passô, we follow the journey of a voice that has the power to transit through different substances. Unexpected new affections appear when this voice finds itself attached to a certain female body and becomes subjected to the social implications of embodying this identity. Based on the narrative of the film, and in dialogue with theorists such as Ursula K. Le Guin, Anne Carson and Adriana Cavarero, we propose to think about the affirmation of plural voices as a poetic confrontation with historical silences.Keywords: Voice; Grace Passô; Dazed Flesh; Word; Body.
La Biblia al servicio de la espiritualidad de la infancia
Authors: Sánchez Abarrio José Andrés
Published: September 2021

Los niños poseen una capacidad innata para lo espiritual. Sin embargo, ciertos prejuicios de los adultos, unido al desconocimiento de los particulares ámbitos donde se desarrolla la espiritualidad en la infancia, hacen que se preste poca atención a esta dimensióncomún a todos los niños. La identificación de esos espacios y ámbitos privilegiados posibilita a los que nos dedicamos a la formación de los niños situarnos como facilitadores de la experiencia espiritual. En nuestra tarea de servicio a la espiritualidad infantil, podemos ofrecer a los niños los relatos bíblicos, como adecuados instrumentos para expresar sus experiencias.
Energy Distribution Evaluation Using Renyi Entropy Measures With Application in EEG Data Analysis
Authors: Popescu Theodor D.
Published: September 2021

The ”corrected” EEG recordings, after artifact removing, may be the subject of further investigations, for example segmentation and energy distribution, resulting new informa- tion to be used for feature extraction, of great help for medical diagnosis. The paper presents a generally method for energy distribution evalua- tion using measures of R´enyi entropy. The pre- sented approach ensures the possibility of quan- titative analysis of the information contained in time-frequency distribution of EEG signals. The proposed procedure is applied with good results in the analysis of a sample lowpass event-related potentials (ERP) data, collected from 13 scalp and 1 EOG electrodes.
Phase Noise Reduction Technique for ISM Band LC Oscillator Using Tail Current
Authors: Thakore Kruti , Shah D. J. , Devashrey N. M.
Published: September 2021

This paper presents low phase noise, precise frequency tuning range LC Voltage controlled Oscillator (VCO) circuit of Phase lock loop, to support - IEEE 802.11a/b/g, Bluetooth, Zigbee and IEEE 802.15.4., operating on 2.4GHz ISM band (Industrial, Scientific, Medical). The presented circuit is implemented in Cadence virtuoso environment and using GPDK090 Library of 90nm CMOS Technology. The presented VCO is tuned at 2.4GHz frequency with tuning range of 80MHz. The measured Phase noise is -126.3dBc/Hz at 1MHz offset frequency. The total power consumption of the presented VCO is 4.7mw at 1V power supply.
Hemodiálisis extendida frente a convencional o hemodiafiltración en línea. Estudio comparativo de necesidad de heparina y coagulación del sistema
Authors: Pelayo-Alonso Raquel , Cobo-Sánchez José Luis , Patricia Martínez-Álvarez Patricia , Portilla-Sánchez Marta , Ibarguren-Rodríguez Emilio
Published: September 2021

Introducción: La reciente aparición de membranas de corte medio ofrece una alternativa para la eliminación de moléculas medianas y nueva terapia dialítica, la hemodiálisis expandida. Estas membranas se caracterizan por un mayor tamaño de poro que podría afectar a la eliminación de la heparina utilizada durante las sesiones de hemodiálisis. Objetivo: Determinar si existen diferencias en la necesidad de heparina y el estado de coagulación del sistema y dializador según técnica dialítica empleada. Material y Método: Estudio cuasiexperimental en pacientes en hemodiálisis con dos periodos de estudio, en el primero, el paciente realizó hemodiálisis convencional o hemodiafiltración y en el segundo, hemodiálisis expandida con membranas de corte medio. Resultados: El dializador quedó parcialmente coagulado en el 10,3% de las sesiones de hemodiálisis expandida frente al 19,1% de las sesiones de hemodiálisis y el 11,4% de hemodiafiltración (p=0,011). Conclusiones: La hemodiálisis expandida ofrece mejor estado de coagulación final del sistema y dializador que otras membranas.
TÁC ĐỘNG CỦA QUÁ TRÌNH DI DÂN TỰ DO CỦA CÁC TỘC NGƯỜI THIỂU SỐ PHÍA BẮC ĐẾN KINH TẾ - XÃ HỘI LÂM ĐỒNG TỪ NĂM 1976 ĐẾN NĂM 2015
Authors: Giang Nguyễn Thị Hà
Published: September 2021

Lịch sử hình thành và phát triển tỉnh Lâm Đồng gắn với quá trình di cư của các cộng đồng, tộc người khác nhau - trong đó có các tộc người thiểu số phía Bắc. Trải qua quá trình di cư, người dân tộc thiểu số phía Bắc đã có mặt ở hầu hết các địa bàn của tỉnh Lâm Đồng, tập trung chủ yếu ở những vùng sâu, vùng xa của các huyện Lâm Hà, Đam Rông, Di Linh, Bảo Lâm, Đạ Tẻh, Cát Tiên. Mục đích của những người di cư này đến Lâm Đồng là tìm nơi có điều kiện thuận lợi về đất đai để sản xuất nông nghiệp. Bài viết này là kết quả nghiên cứu điền dã, kết hợp với các nguồn tài liệu lưu trữ; nghiên cứu và phân tích tác động của luồng di dân tự do là các tộc người thiểu số phía Bắc đối với sự phát triển của kinh tế-xã hội Lâm Đồng trong giai đoạn từ năm 1976 đến năm 2015. Từ kết quả nghiên cứu trên, chúng tôi chỉ ra những tác động tích cực và hạn chế của luồng di dân tự do tác động đến nền kinh tế Lâm Đồng. Đồng thời, đưa ra những giải pháp nhằm tận dụng những điểm mạnh của di dân tự do; giảm thiểu và khắc phục những hạn chế của vấn đề này trong chiến lược phát triển kinh tế bền vững ở tỉnh Lâm Đồng hiện nay.
Connecting University Students, Faculty and Administrators through an Online SMS Service
Authors: Al-Jarf Reima
Published: September 2021

King Saud University (KSU) created an online Short Message Service (SMS) called “Tawasul”, developed in house, to connect administrators, faculty, and students. The KSU rector, deans, department heads and program coordinators send group season’s greetings and notifications to the mobile phones of faculty members, staff, and students. Instructors can send course notifications to their students regarding exams and other issues. There are currently 380 SMS groups for department staff, T.A.’s, workshop participants, course enrollees and others. Students and faculty surveyed indicated that the KSU online SMS Service is easy to use. It is faster and more efficient than paper memos and e-mails, especially in emergency situations. It helps conserve paper. Students and faculty can be reached anytime, anywhere and 7 days a week. Unused SMS in the user’s account can be added to his/her balance. SMSs are archived. Those interested to join a group can send a message to the group’s mobile number. Students’ mobile phone numbers are entered manually once and saved as a group. However, some faculty indicated that the allocated 200 free SMSs per month are not enough when class enrollees are more than 50. They also indicated that it is not possible to send a reply, a comment, or a query to the sender of the SMS. Sometimes the service cannot be used when it is under maintenance or when there is a technical problem. It is time-consuming to enter students’ mobile phone numbers manually particularly in large classes. Further results and recommendations are given.
ANALISA FAKTOR-FAKTOR DALAM MEMBANGUN PERSONAL BRANDING SEORANG INFLUENCER
Authors: Christanisa Shintadea
Published: September 2021

Perkembangan teknologi yang semakin canggih menyebabkan personal banding dari seseorang sangat penting, apalagi dapat dengan mudah dilihat melalui media sosial. Dimana personal branding dari seseorang dapat menentukan bagaimana seseorang itu berpengaruh terhadap orang yang mengikutinya dimedia sosial. Aspek-aspek yang dapat mempengaruhi personal branding ada 3 yaitu media sosial, konten, dan follower. Penelitian ini bertujuan untuk mengetahui pengaruh media sosial, konten, dan follower terhadap pembentukan personal branding seorang influencer. Penelitian ini merupakan penelitian kuantitatif dengan pengumpulan datanya menggunakan kuisioner yang disebar melalui online. Skor pada kuisioner tersebut dinilai pada skala 1-5. Subjek dari penelitian ini adalah seorang influencer di Jawa Tengah dan sekitarnya, dengan jumlah populasi 90 orang. Analisis data menggunakan SPSS 25 yang meliputi uji instrumen, uji asumsi klasik, analisis regresi linear berganda, uji T, dan uji F. Hasil penelitian menunjukkan bahwa aspek media sosial memiliki tingkat signifikasi 0,000, konten 0,000, dan follower 0,030. Dapat disimpulkan bahwa aspek media sosial, konten, dan follower berpengaruh signifikan terhadap personal branding.Kata Kunci: Media Sosial, Konten, Follower, Personal Branding
PENGARUH MOTIVASI DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN PT ASURANSI JIWA BCA (BCA LIFE) MANGGA BESAR, JAKARTA PUSAT
Authors: Trisniati Nia , Abdulah Budiman
Published: September 2021

ABSTRACTThis study aims to examine the influence of work motivation and work environment on employee performance at PT BCA Life Insurance (BCA Life) Mangga Besar, Central Jakarta with a population of 300 people and a sample of 100 people.This research method uses quantitative research. Data collection techniques are carried out by making observations with questionnaire media. The data analysis method used multiple linear regression. The data is processed by SPSS software. Results of the study showed that all hypothesis can be accepted, in which all variables all influence positively. From the results it can be concluded all the variables have implications for  the effect of the positive to support the performance of employees at PT BCA Life Insurance (BCA Life) which meansthat the companyis getting better at motivating employees and The support to theenvironmental work that is conducive in the direct performance of employees will increase.Keyword : Motivation, Work Environment, and Employee Performance
MERSİN İLİNİN SÜS BİTKİSİ POTANSİYELİ TAŞIYAN BAZI MONOKOTİL ENDEMİK BİTKİLERİ
Authors: ŞENTÜRK Muhyettin , BİNZET Rıza
Published: September 2021

Humanity has used plants for aesthetic purposes for centuries. Plants nowadays use cities for more livable habitats and similar purposes to satisfy the longing for nature of people who move away from nature due to increasing urbanization. So that plants attract attention as a commercial field plays a crucial role in economic development for many countries today. Our country, which is one of the richest geographies in terms of biodiversity globally, shows a total of 11466 plant taxa, 3800 of which are endemic. While the total number of plant species in all of Europe is around 12.000, in our country there are approximately 10.000 species. When the species and subspecies identified in recent years are added, around 12,000 taxa find natural habitats in our country. Mersin province is one of the important endemism centers of our country, with approximately 400 endemic species (endemism rate is approximately 23%). It is seen that the areas where geophytes spread intensively in the world are regions where the Mediterranean climate prevails, which is humid and warm in winters and dry and hot in summers. The Mediterranean Basin, where our country is located, is the second richest geophyte region in the world. Mersin province is one of the provinces located in the Mediterranean Basin. Within the scope of this study, it is to determine the usability of endemic plant species that are naturally distributed in Mersin province as ornamental plants and to ensure that they gain economic value in the ornamental plant market. For this purpose, in our study, some monocotyledon taxa that have an ornamental plant potential from endemic plant taxa in Mersin have been determined, and photographs of these taxa are presented. The recommended taxa are geophyte taxa, and the fact that they only spread in our country (some only in Mersin) is of great importance in bringing these species into the landscape as ornamental plants. A total of 20 endemic taxa belonging to 5 different monocotyledon families identified in Mersin were determined. The endangered extinction of some of these taxa proposed as ornamental plants is also of great importance in ensuring their generation by bringing them into the landscape with various production techniques.
Digital Competence Improvement by Lithuanian School Teachers During Covid-19
Authors: Daukšienė Estela , Trepulė Elena , Volungevičienė Airina
Published: September 2021

Distance teaching and learning in Lithuanian schools during COVID-19 pandemic was a booster for teacher digital competence development. The paper analysis the experiences of Lithuanian school teachers to reveal the challenges schools and teachers faced while switching from traditional face to face teaching and learning to distance education. The research revealed existence of different level teacher digital competences at a school and uneven competence development in each school. The analysis of experiences of Lithuanian school teachers through the lens of DigCompEdu framework revealed that professional development competence was the background for other competence areas to develop. The need for digital resources for teaching online contributed to the teacher digital competence development of this area. Digital assessment was indicated as the main challenge that remained unsolved in many cases. Research found that technological peculiarities were easier to learn and showed the need to develop teacher social and didactical competences which are necessary for distance teaching. Lack of activities to empower learners and develop their digital competences was recorded. Teachers themselves acknowledged great improvement of their digital competence.
Online Communication and Assessment Practices during the Covid Pandemic: A Study of the Portuguese Higher Education Students’ Perceptions
Authors: Morgado Lina , Paz João , Pereira Hugo , Loureiro Ana , Messias Inês , Cardoso Paula , Paiva Ana , Runa Ana , Seco Carlos , Mendes Elisabete , Vieira Márcia , Oliveira Nuno
Published: September 2021

This proposal is part of an ongoing research and presents the results on the perceptions and pedagogical practices experienced by students from various higher education degrees in Portuguese higher education institutions, during the period of social confinement determined by the Portuguese Government, due to the COVID-19 pandemic. The main objective of the general research was to understand how Higher Education faculty and students experienced the digital transition to emergency education and the pedagogical practices adopted during the period. The research was based on a mixed methods approach and, in order to address the research objectives and describe the pedagogical practices implemented, specific instruments were developed for data collection. A questionnaire was developed, aimed at students, and interviews aimed at both students and faculty, focusing on technological and pedagogical dimensions, as well as the assessment of the experience. Data collection was carried out after the first lockdown, at the end of the first semester of 2020, and took place in eight higher education institutions. In this paper we will present a preliminary analysis of Questionnaire results related to two dimensions: online communication and assessment.
The Challenges of Open Data Movement for Education: What is the Say of Young Employees and Students in Croatia?
Authors: Mraović Branka
Published: September 2021

This paper aims to shed light on how students and young employees in Croatia assess their education for open data and what is their opinion on the compliance of the central Open Data Portal with the needs of young people as well as how they evaluate open data policy related to the young people in Croatia. This research highlights the lack of technical knowledge as a serious obstacle to the productive use of open data. As many as 56% of respondents from companies that have undergone digital transformation believe that they do not have enough knowledge to participate in open data projects, and the same scepticism is expressed by 59.6% of non-technical respondents and 45.7% of students. The data presented in this paper is part of a broader empirical research on the impact of digitalization on the transformation of the Croatian economy, carried out by the author in late 2018 on a sample of 51 young employees from 10 companies in the city of Zagreb and 70 students from 16 technical and non-technical Faculties of Zagreb University.
Using Virtual Laboratory Environment for Science Education in Different Educational Settings
Authors: Sypsas Athanasios , Paxinou Evgenia , Kalles Dimitris
Published: September 2021

Although hands-on laboratory experiments have been traditionally used in education, virtual laboratories have become popular in science courses due to their specific features. In this study, we asked for the students’ opinion on using a 3D desktop-based virtual reality biology lab in two different educational settings, upper secondary education (Lyceum) and University. Our findings indicate that both Lyceum and University students found the use of the virtual laboratory interesting, when learning and practicing on the use of an optical microscope. According to the students’ answers in a specially designed Likert-style questionnaire, this virtual reality-based learning experience was rather satisfactory, helped them easily understand the new topic of microscopy and filled them with confidence regarding their capability to conduct the specific microscopy experiment in a real biology lab. These results, combined with similar findings from other studies, suggest that virtual environments are viewed favourably by students and could be used supplementary to traditional teaching methods applied in hands-on laboratories in different educational settings.
Improving financial literacy of a selected group in favour of eliminating crime
Authors: Drotárová Jozefína , Misiuk Andzej , Gedeonová Zuzana
Published: September 2021

The aim of this paper is to point out the connections and the relation between financial literacy, poverty and criminal activities in the context of marginalized Roma communities in Slovakia. The target group was selected on the basis of the negative statistics as presented below. Poverty is one of the issues contributing not only to antisocial behavior of Roma communities but also leading them to criminal activities. In the case of the Slovak Roma, 87% of them live in poverty. The marginalized Roma communities are often linked to the so-called petty crime, which is represented by thefts in stores, in groceries, in public means of transport, in the streets etc.

The research carried out using the problem analysis method was aimed at the initial structuring of the research field and theoretical and conceptual preparation of tools for detailed exploration. The study also contains an analysis of the financial literacy of the marginalized Roma communities in Slovakia.

The survey results of the analysis indicate that the community is lagging behind in the area of the financial literacy and education itself. Only a small percentage of the Roma have completed education that is higher than elementary education. There are about 75% of unemployed Roma that receive material need benefits. Since they are unemployed, they cannot take out a loan in a bank. Therefore, another form of crime is the so-called usury, i.e. loaning money directly in a community and with an extremely high interest rate.

There are two areas in the fight against crime caused by low financial literacy that may be regarded as key areas, namely decreasing the level of poverty of the marginalized Roma communities and financial education.

The article problematizes the hitherto unknown contexts of connections and the relation between financial literacy, poverty and criminal activities in the context of marginalized Roma communities in Slovakia and original survey focused on analysis of the financial literacy of the marginalized Roma communities in Slovakia.
Methodology for assessment of food security of countries
Authors: Jurczak Robert
Published: September 2021

A comprehensive assessment of national food security should include an analysis of the physical and economic accessibility of food, the level and quality of nutrition of the population, the sustainability and competitiveness of agriculture, factors and trends of self-sufficiency in the main types of agricultural products, raw materials and food and the effectiveness of foreign trade in food. To assess the food security situation at the state level, it is necessary to conduct monitoring, which consists in determining the deviations of the main indicators from the criteria and thresholds established at the national level. The monitoring should determine the format of the national report on the country's food security. The number of indicators that make up its basis, should be optimal and sufficient to reflect the level of food security of the country and compare them with the situation in other countries. At the same time, it is necessary to analyze trends in ensuring food security at the global level in terms of the progress of countries and regions of the world in achieving the goals of sustainable development in agriculture, the elimination of hunger and poverty for the period up to 2030.  Conducting a study of the components of the global food security index, formed at the world level to measure the policy and efficiency of government agencies in the field of food security, is relevant and in demand for positioning the country within the framework of international comparison of countries.
Ensuring the financial safety of Ukrainian agricultural enterprises in the context of export products and the impact on macroeconomic indicators
Authors: Bezpartochnyi Maksym , Britchenko Igor , Bezpartochna Olesia
Published: September 2021

This article is devoted to the study of directions of financial safety of Ukrainian agricultural enterprises through the assessment of indicators economic activity and analysis of the export potential of agricultural products. The financial indicators of economic activity of Ukrainian agricultural enterprises, which affect the ensuring of financial safety, are determined. The activity of large Ukrainian agricultural enterprises in terms of their capitalization and formation of own capital are studied. Analyzed the commodity structure of exports agricultural products of Ukrainian agricultural enterprises and determined the amount of foreign exchange earnings from EU countries. Due to economic-statistical and mathematical tools, a study of the dependence of GDP and the euro on foreign exchange earnings from exports of agricultural products of Ukrainian agricultural enterprises to the EU countries. Offered the scheme of directions of maintenance of financial safety of the agricultural enterprises of Ukraine in the context of internal environment of activity of economic entities and stabilization of macroeconomic indicators of the country.
Analysis of Delivery in Singleton Pregnancies Achieved by In Vitro Fertilization
Authors: Slavov Sergei , Ingilizova Gergana , Yaneva Galina
Published: September 2021

BACKGROUND: Birth after IVF is increasingly observed in modern obstetrics, so knowledge of its features is of paramount importance for clinical practice. 
AIM: The purpose of our study was to compare IVF and spontaneous singleton pregnancies in terms of cesarean section rate, operative vaginal birth rate, induction of labor, manual removal of the placenta in vaginal births, severe PPH and need for blood transfusion after delivery.
 
MATERIAL AND METHODS: We conducted a retrospective study at "Maichin Dom" University Hospital in Sofia, Bulgaria for the period from January 2013 to December 2017 and analyzed 402 singleton IVF pregnancies and compared them with 523 spontaneous singleton pregnancies 
 
RESULTS: We found a significantly higher rate of cesarean sections in IVF compared to spontaneous pregnancies [OR 1.73; 95% CI 1.4-2.14; p<0.001]. Vaginal delivery after IVF is associated with a higher incidence of operative vaginal delivery than spontaneous pregnancies [OR 2.27; 95% CI 1.14 - 4.52; p=0.018]. No statistical differences in rates of labor induction and manual removal of the placenta between two groups were estimated (p>0.05). Severe PPH and blood transfusions were three times higher in patients after IVF undergoing a cesarean section than in those with spontaneous singleton pregnancies [OR 3.0; 95% CI 1.11 - 8.11; p=0.018].
 
CONCLUSION: IVF singleton pregnancies are associated with a higher risk of cesarean section as well as some obstetric complications. Obstetricians should treat these pregnancies with caution in order to reduce cesarean section rate and improve the outcome.
Singular integro-differential equations with applications
Authors: Horani Mohammed Al , Favini Angelo , Tanabe Hiroki
Published: September 2021

We are devoted with singular integro-differential abstract Cauchyproblems. Required conditions on spaces and operators are givenguaranteeing existence and uniqueness of solutions. Applications from partial differential equations are given to illustrate the abstract singular integro-differential problem.
Exponential stabilization of a linear Korteweg-de Vries equation with input saturation
Authors: Taboye Ahmat Mahamat , Laabissi Mohamed
Published: September 2021

This article deals with the issue of the exponential stability of a linear Korteweg-de Vries equation with input saturation. It is proved that the system is well-posed and the origin is exponentially stable for the closed loop system, by using the classical argument used in this kind of problems.
The general Albertson irregularity index of graphs
Authors: Lin Zhen ,   School of Mathematics and Statistics, Qinghai Normal University, Xining, 810008, Qinghai, China, Zhou Ting , Wang Xiaojing , Miao Lianying ,   School of Mathematics, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
Published: September 2021

We introduce the general Albertson irregularity index of a connected graph $ G $ and define it as $ A_{p}(G) = (\sum_{uv\in E(G)}|d(u)-d(v)|^p)^{\frac{1}{p}} $, where $ p $ is a positive real number and $ d(v) $ is the degree of the vertex $ v $ in $ G $. The new index is not only generalization of the well-known Albertson irregularity index and $ \sigma $-index, but also it is the Minkowski norm of the degree of vertex. We present lower and upper bounds on the general Albertson irregularity index. In addition, we study the extremal value on the general Albertson irregularity index for trees of given order. Finally, we give the calculation formula of the general Albertson index of generalized Bethe trees and Kragujevac trees.
Neural network approach to data-driven estimation of chemotactic sensitivity in the Keller-Segel model
Authors: Hwang Sunwoo ,   Department of Mathematics Pohang University of Science and Technology Pohang, Republic of Korea, Lee Seongwon , Hwang Hyung Ju ,   Innovation Center for Industrial Mathematics, National Institute for Mathematical Sciences, Daejeon, Republic of Korea
Published: September 2021

We consider the mathematical model of chemotaxis introduced by Patlak, Keller, and Segel. Aggregation and progression waves are present everywhere in the population dynamics of chemotactic cells. Aggregation originates from the chemotaxis of mobile cells, where cells are attracted to migrate to higher concentrations of the chemical signal region produced by themselves. The neural net can be used to find the approximate solution of the PDE. We proved that the error, the difference between the actual value and the predicted value, is bound to a constant multiple of the loss we are learning. Also, the Neural Net approximation can be easily applied to the inverse problem. It was confirmed that even when the coefficient of the PDE equation was unknown, prediction with high accuracy was achieved.