bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative study of practical teaching and learning methods: higher education
Authors: Falcón Francisco Manuel Hilario , Rios Julio Raúl Cantera , Palomino Ilich Ivan Pumacayo , Salazar Neptali Zegarra
Published: March 2022

The level of higher education has been undergoing changes where there has been an increase in the difficulty of the work of teachers and university students, therefore, they opt for strategies that teachers develop to be able to teach and perform learning techniques that will allow them to solve real problems: Practical teaching methods: (a) Didactic strategies applied in the formation of competencies, (b) Criteria for conceptualization, classification, selection and characterization of teaching methods. Practical learning methods: (i) Competency-based higher education teaching-learning model, (ii) Learning strategies in higher education. In synthesis, the didactic strategies applied in the formation of competencies is a process that will encourage students and university teachers to be able to use learning tools and techniques to achieve their particular objectives. This study can be improved by increasing variables and obtaining more precise results based on methodological techniques to improve teaching and academic learning.
Design and Simulation of a Service Robot for Covid-19 Isolation Wards with
Autonomous Navigation
Authors: Duseja Lalit , Deshmukh Yash , Karmuse Shantanu , Ohol S. S.
Published: March 2022

The robots that are used to carry out the daily repetitive tasks in any type of environments are service robots. These robots have a great potential to eliminate human intervention and reduce contact in order to decrease the spread of virus. Service robots are of great importance when the human society is hit with a situation of pandemic as they can help in serving the patients in and infectious environment and isolating them from the surroundings. Such kind of a service robot that would serve infected patients in isolation wards is designed & simulated by taking in the consideration the requirements. The dimensions of robot such as to optimize workspace requirements and the simulation of position and task of supplying the deliverables to patients from buffer area to isolation area are presented. The designed robot can successfully deliver medicines, food etc.to the patients without any contact between doctors, nurses or patients by using an on boarded Radio Frequency Identification system. The robot is well equipped with the sanitization mechanism to disinfect itself.
The Role of Sergio Bonazza in Italian Slavic Studies
Authors: Aloe Stefano
Published: March 2022

This contribution aims to give a scholarly and human profile of the Italian Slavist Sergio Bonazza (1938-2021), recently passed away. Bonazza was born in a Slovene-speaking village nearby Triest to a mixed family. He studied in Venice and Vienna, where he started his activity as a researcher in the field of Slavic studies history, especially in the Austro-German and Italian contexts of the 19th century. His academic career unfolded mostly at the University of Verona, but also in Naples, Udine and Vienna. In 1987 in Udine, he was assigned the first chair of Slovene studies out of Slovenia. Gifted with a strong personality, he touched on a wide variety of concerns in different fields of Slavic studies, overcoming academic and cultural stereotypes, and often opening up new perspectives in the fields of history of Slavistics, Slovene culture and literature, Austro-Slavism, Slavic-Italian cultural relationships, Glagolitic writing in Eastern Italy, and more. Bonazza is well known as a specialist in the scholarly biography of the prominent Slavist Jernej (Bartholomäeus) Kopitar, to whom he devoted his best works, including a monograph.
M.C. Bragone, M. Bidovec (a cura di), Il mondo slavo e l’Europa. Contributi presentati al VI Congresso Italiano di Slavistica (Torino, 20-30 settembre 2016), fup, Firenze 2019, pp. 368.
Authors: Brogi Bercoff Giovanna
Published: March 2022

Book Review
Ch. Delsol, J. Nowicki (éd.), La vie de l’esprit en Europe centrale et orientale depuis 1945. Dictionnaire encyclopédique, Les Éditions du Cerf, Paris 2021, pp. 1000.
Authors: Béghin Laurent
Published: March 2022

Book Review
O. Mandel’stam, Il programma del pane. Come lievita la poesia, a cura di L. Tosi, Jouvence, Milano 2021, pp. 272.
Authors: Graziadei Caterina
Published: March 2022

Book Review
A Precious Heritage. The Contribution of Hans Rothe to Slavic Studies
Authors: Brogi Bercoff Giovanna , Garzaniti Marcello
Published: March 2022

The authors present some of the most important writings of the well-known professor emeritus of Bonn University, Hans Rothe (1928-2021), offering an overview of the main ideas he developed and the methods he applied in his research. Due attention is given to his indefatigable activity as an editor of important, mostly unduly forgotten medieval and early modern texts. His commentary to the first translations of the Bible for many Slavic peoples remains a milestone of Slavic studies. He was a pioneer in fostering research about Slavo-Byzantine liturgical and religious texts, devotional songs, and baroque literature in Russia and Ukraine. No less remarkable are his articles about the Enlightenment and such giants of literature as Lesja Ukrajinka, Deržavin, Puškin and Tolstoj.
التفكير العلميّ وعلاقته بالذاكرة الفيزيائية لدى طلبة الجامعة
Authors: الخالديّ م.د. رضاب منصور حسين
Published: March 2022

يسعى البحث الحالي إلى معرفة مستوى التفكير العلمي والذاكرة الفيزيائية لدى طلبة الجامعة، وفي ضوء ما تقدم؛ حدد الباحث أهداف البحث بالآتي: التعرف بـ:

مستوى التفكير العلمي لدى طلبة الجامعة.

الفرق في متوسط درجات التفكير العلمي حسب المتغيرات: الجنس، والتخصص، والصف لدى طلبة الجامعة.

مستوى الذاكرة الفيزيائية لدى طلبة الجامعة.

الفرق في متوسط درجات الذاكرة الفيزيائية بحسب المتغيرات: الجنس، والتخصص، والصف لدى طلبة الجامعة.

قوة اتجاه العلاقة بين التفكير العلمي والذاكرة الفيزيائية لدى طلبة الجامعة.

   وقد تحددت عينة البحث الحالي بالطريقة العشوائية البسيطة لطلبة الجامعة (300) طالب وطالبة، وتحقق الصدق المنطقي والصدق الظاهري، للمقاييس، أما الصدق البنائي؛ فقد استعمل للمقياسين، أما الثبات؛ فقد تم استخراجه بطريقتين: طريقة إعادة الاختبار، ومعامل معادلة ألفا كرونباخ للاتساق الداخلي، وقد أظهر البحث الحالي جملة من النتائج، منها:

أ/ دلالة الفرق في درجات الطلبة على مقياس التفكير العلمي دال عند (0.05) وأن دلالة الفرق تعود لصالح متوسط العينة.

ب/ دلالة الفرق في درجات الطلبة على مقياس التفكير العلميّ تبعاً لمتغير الجنس عند مستوى (0.05) لصالح المتوسط الفرضي.

جـ/ دلالة الفرق في درجات الطلبة على مقياس التفكير العلمي تبعاً لمتغير التخصص دال عند (0.05) وأنَّ دلالة الفرق تعود لصالح متوسط العينة.

د/ دلالة الفرق في درجات الطلبة على مقياس الذاكرة الفيزيائية دال عند (0.05) وتعود لصالح متوسط العينة طلبة الجامعة، يمتازون بمستوى جيد في الذاكرة الفيزيائية.

هـ/ دلالة الفرق في درجات الطلبة على مقياس الذاكرة الفيزيائية تبعاً لمتغير الجنس عند (0.05) لصالح المتوسط الفرضي.
اثر بيئة الاركان التعليمية في تنمية التفكير الابداعي لدى تلاميذ الصف الخامس الابتدائي
Authors: عبدالحميد م.د. شيماء عبدالعزيز
Published: March 2022

يرمي البحث تعرف أثر بيئة الأركان التعليمية في تنمية التفكير الابداعيّ لدى تلاميذ الصف الخامس الابتدائي. استخدمت الباحثة التصميم التجريبي ذا الضبط الجزئيّ, اختيرت الشعبة (أ) لتمثل المجموعة التجريبية التي تتعلم في بيئة الاركان التعليمية, ومثلت الشعبة (ب) المجموعة الضابطة التي تتعلم في غرفة الصف التقليدية ,بلغ عدد التلاميذ (60) تلميذا بواقع (30) تلميذا لكلّ شعبة. تم مكافأة مجموعتي البحث في المتغيرات الاتية: (العمر الزمني, والذكاء, والتحصيل العام الدراسي السابق, واختبار التفكير الابداعيّ), اعتمدت الباحثة على اختبار تورانس للتفكير الابداعي أداة لبحثها, وتم التثبت من صدق الاداة وثباتها, واستخدمت الاختبار التائي لعينتين مستقلتين لمعالجة البيانات, أظهرت النتائج تفوق المجموعة التجريبية في اختبار التفكير الابداعي ومهاراته الفرعية, وقد أوصت الباحثة باستخدام بيئة الاركان التعليمية في المراحل الدراسية المختلفة.
Mezzanine Finance and Preferred Equity Investment in Commercial Real Estate: Security, Collateral & Control
Authors: Robins Jon , Wallace David , Franke Mark
Published: March 2022

This article will review both the genesis and the rise in popularity of preferred equity and mezzanine debt, examine their legal and structural differences, and provide some exposition as to how these financing techniques work from security, collateral and control standpoints. We do not undertake in this article to address the differences in tax and accounting treatment between mezzanine loans and preferred equity investments both for either the mezzanine lender or preferred equity investor on the one hand, or for the mezzanine borrower or the common equity investor, on the other hand. In deciding upon which structure to use, transaction participants should consult with their independent tax and accounting advisors to ensure that the transaction is appropriately structured to best meet their individual needs, subject to such compromise as may be necessary to effect a desired transaction. We proceed as follows: Section II outlines the legal principles of, and the practical realities that have shaped, real estate finance from common law to modernity. Section III begins with an exposition of the preferred equity instruments and mezzanine debt that form the subject of this study. It will start by outlining their qualities and follow with a delineation of the organizational structures used in deals in which they form part of the capital structure. Lastly, it will proceed through theoretical and practical issues for legal counsel to consider. Section IV will address an open issue, never, to the authors’ knowledge, having been before a court: whether these funding mechanisms should be treated as equitable mortgages according to the common law equitable tradition to treat mortgage-like agreements as mortgages. This Section will argue that these funding mechanisms should not be treated as equitable mortgages. Finally, we will set forth our conclusion in Section V.
Incubator Cities: Tomorrow's Economy, Yesterday's Start-Ups
Authors: Cable Abraham
Published: March 2022

Venture development funds (“VDFs”) are products of state and local government law that use public funds to invest in local start-ups, in the hope that these companies will then attract venture capital investment. Existing analysis by legal scholars largely assumes that establishing a private venture capital market is essential to encouraging entrepreneurship. This article challenges that assumption. It argues that VDFs and other policies focused on encouraging venture capital are outmoded and inconsistent with the ultimate economic development goals of state and local governments. In many industries, entrepreneurs can now get by with less capital because the cost of developing a product is rapidly declining due to technological advances (e.g., cloud computing) and other developments (e.g., the ability to market an app through Apple’s App Store). But venture capital funds continue to seek out investments in a small number of industries that still require a great deal of capital, such as biotech firms trying to develop new drugs. This narrow focus is inconsistent with the advice of economic development experts to pursue industry-neutral policies that broadly encourage entrepreneurial activity in all of its forms. Also, policies oriented towards venture capital may undermine goals of employment diversity and stability because companies seeking venture capital pursue particularly high-risk business strategies that often fail. This article recommends that state and local governments shift their policies to encourage, or at least not hinder, alternatives to venture capital.
Should Angel-Backed Start-Ups Reject Venture Capital?
Authors: Ibrahim Darian
Published: March 2022

The conventional wisdom is that entrepreneurs seek financing for their high-growth, high-risk start-up companies in a particular order. They begin with friends, family, and “bootstrapping” (e.g., credit card debt). Next they turn to angel investors, or accredited investors (and usually ex-entrepreneurs) who invest their own money in multiple, early-stage start-ups. Finally, after angel funds run dry, entrepreneurs seek funding from venture capitalists (VCs), whose deep pockets and connections lead the startup to an initial public offering (IPO) or sale to a larger company in the same industry (trade sale). That conventional wisdom may have been the model for start-up success in the past, but this Article challenges its continuing applicability. In particular, this Article argues that some start-ups that attract angel funding should stop there, rejecting offers of venture capital. It challenges the notion that venture capital is a necessary condition for start-up success and argues the counterintuitive proposition that venture capital may actually be harmful to entrepreneurs and angel investors in some situations.
A Complete View of the Cathedral: Claims of Tortious Interference and the Specific Performance Remedy in Mergers and Acquisitions Litigation
Authors: Nikas Luke , Maslo Paul
Published: March 2022

A bank promises to lend several billion dollars to fund a buyer’s purchase of a target company. The buyer enters into a merger agreement with the target. Thereafter, the economy plummets, and the bank decides that breaching its contract with the buyer will cost less than performing. The buyer seeks specific performance. The target also sues the bank, alleging tortious interference with the merger agreement. Billions of dollars are on the line. This is the reality lived by many investment banks that committed to fund leveraged buyouts during the recent economic downturn. Most of these matters were resolved in private settlements to avoid the possibility of crippling tort liability and publicly airing the messy details of the targets’ poor financial circumstances. The judicial decisions that do exist reveal a myopic view of the relationship between the buyer’s specific performance claim against the bank, on the one hand, and the target’s tort claim against the bank, on the other. By treating these claims as substantively distinct, courts threaten to impose an inefficient liability rule for the bank’s allegedly tortious conduct (including the possibility of punitive damages) and an equally inefficient property rule for the bank’s alleged breach of contract (specific performance). Courts must take a singular view of the combined costs and efficiencies created by the buyer’s and target’s individual claims to properly determine the appropriate remedy for the bank’s conduct.
Enhancing the Legal and Regulatory Environment for Investment in Social Enterprise
Authors: Minhas Dilpreet
Published: March 2022

The objectives of this Note are: 1) to provide readers interested in social enterprise and entrepreneurship an introduction to these endeavors and the growing trend toward using them; 2) to present the challenges stemming from the legal and financial frameworks surrounding social investment activity, which can inhibit the survival and growth of social enterprises; and 3) to propose suggestions for addressing such challenges and limitations in order to better support the survival of social enterprise. Part II and Part III provide a broad perspective of the types of investment in and nurturing of social entrepreneurship in the U.S. Part IV analyzes the current business and regulatory framework supporting entrepreneurial ventures and provides suggestions to improve their potential to facilitate sustainable growth of social entrepreneurship.
Insider Trading and Other Securities Frauds in the United States: Lessons for Chile
Authors: Figueroa Dante
Published: March 2022

This Article is a comparative analysis of insider trading law in the United States and Chile. The study summarily reviews the historical, political, and legal foundations of insider trading regulation in both jurisdictions, identifying areas of convergence, as well as areas in which the Chilean securities market could benefit vis- ` a-vis the more advanced experience of the considerably larger American securities market. The Article also highlights the axiological closeness between both jurisdictions concerning the protection of inside corporate information and the fiduciary role of those who intervene in securities markets in their various capacities (as investors, shareholders, corporate officers, consultants, advisors, or as other intermediary roles). The Article concludes by identifying a series of reforms that might potentially benefit the Chilean legal system as it works towards its stated purpose of protecting and promoting transparency in its national securities market.
Revisiting the Accredited Investor Standard
Authors: Haq Syed
Published: March 2022

The passage of the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank”) and the Jumpstart Our Business Startups (JOBS) Act provided the impetus for several changes in the financial regulatory regime. In the securities markets, Dodd-Frank included provisions that lifted a ban on general solicitation and mandated a review of the accredited investor standard. These changes, while intended to increase capital formation within our private markets, also brought to light serious investor protection issues. This note advocates for a new accredited investor standard that more accurately reflects the risks associated with investing in the private markets.
TEACHER’S TALKS IN CLASSROOM INTERACTION AT BANI ADUNG ISLAMIC BOARDING SCHOOL BANTEN
Authors: Rahmawati Ida , Evenddy Sutrisno Sadji , Handayani Ika
Published: March 2022

The objectives of this research are to find out the categories and students’ perceptions of teacher’s talks that were applied by the English teacher in the teaching and learning process at Bani Adung Islamic Boarding School based on the framework Flander’s Interaction Analysis Categories (FIAC), and to know the students’ perceptions about the teacher’s talks. The participants of this research were the English teacher and the eighth grade students of the setting. The method of this research was qualitative descriptive method, and observation sheet, audio recording and questionnaire were used for data collection. The data taken from the teacher’s talks applied by the teacher in classroom activities were analyzed qualitatively. The result showed that the most dominant category was giving directions (29%), followed by asking the questions (27.5%), and the last category was accepting or using ideas of students (2.9%). The indirect talks were lower than direct talks. As a result, the teacher-centered method was found to be the most prevalent during classroom interaction. Students also preferred to be praised or encouraged, and effective language in the classroom was required. It is recommended that the teacher use all types of teacher talks in the classroom. They should, however, be based on the needs of the students.
On the Existence of the Solutions of A Nonlinear Fredholm Integral Equation in Hölder Spaces
Authors: TEMİZER ERSOY Merve
Published: March 2022

In this article, we prove the theorem concerning the existence of the solutions for some nonlinear integral equations. As an application, we investigate the problem of existence of solutions of Fredholm integral equations using the technique of relative compactness in conjunction with fixed point theorem. Our solutions are placed in the space of functions satisfying the Hölder condition. Our work is more general than the previous works in [1-3]. In the last section, we show the efficiency of this approach on one numerical example.
POTENTIAL OF TWIN-SCREW COMPRESSOR AS VIBRATION SOURCE FOR ENERGY HARVESTING APPLICATIONS
Authors:   ", BORZEA Claudia ,   University POLITEHNICA of Bucharest    Romanian Research and Development Institute for Gas Turbines COMOTI ", PETRESCU Valentin ,   "University POLITEHNICA of Bucharest    Romanian Research and Development Institute for Gas Turbines COMOTI ", VLĂDUCĂ Iulian ,   Romanian Research and Development Institute for Gas Turbines COMOTI, ROMAN Mihaela ,   "University POLITEHNICA of Bucharest    Romanian Research and Development Institute for Gas Turbines COMOTI ", BADEA Gabriel ,   "University POLITEHNICA of Bucharest    Romanian Research and Development Institute for Gas Turbines COMOTI "
Published: March 2022

The paper presents the vibrational behaviour of a twin-screw compressor at various functioning regimes. The speed is varied by means of a 250 kW electric driving motor, via a frequency converter. The compressor can supply pressurized air up to ~16 bar into a buffer tank. The air is used for testing various equipment on test bench, such as expanders, pneumatic starters for gas turbine engines, or other compressors and blowers used for compressing air starting from a pressure higher than the atmospheric pressure. Like all other industrial equipment, compressors experience inherent vibrations in operation. The pulsatory effects of the air within the compressor also give birth to harmonics. The study herein involves gathering vibration data and represent it as vibration spectra. Raw vibration signals, employed for assessing the condition of the machinery, may not always be clear in the frequency spectrum for vibration analysis, thus being required to apply Fast Fourier Transform for converting the time waveform into frequency spectrum. The study herein pursues a future application of energy harvesting from vibrations, and outlines that the spectral analysis of the compressor is convenient for piezoelectric cantilever harvesters in terms of vibration frequency and amplitude.
PROPAGATION OF OVERVOLTAGE WAVES IN ELECTRICAL TRANSFORMERS WITH GUARD RING
Authors:   University Politehnica of Bucharest, VIIȘOREANU - RĂCHIȚEANU Alina , VIIȘOREANU Alexandru-Marius ,   University Politehnica of Bucharest
Published: March 2022

The paper presents a study based on numerical simulation methods of electrical circuits which analyzes the influence of the internal protection elements of the transformer on atmospheric surges. The difference between the time variation curves of the overvoltages propagated during the high voltage winding with and without guard ring is shown as an internal protection element of the transformer.
SIMULATION OF THE CIRCUITS FOR ELECTRIC VEHICLES CHARGING SYSTEMS
Authors:   ", IDOKO George Onoja ,   University POLITEHNICA of Bucharest Faculty of Electrical Engineering"
Published: March 2022

This paper examines the charging system of electric vehicles and tries to explain the process involved in the operation of an electric vehicle supply equipment and the electric vehicle onboard charging module. The simulation carried out in this paper were done using the power electronics simulation software PSIM. It presents the electric schematic of the proximity pilot connection and the control pilot connection. It also presents the voltage waveforms for both connector pins.
Neutrophil-Lymphocyte Ratio Related to Patients Outcome in Moderate Head Injury Patients with Intracerebral Hemorrhage
Authors: Prinosa Vandra , Syaiful Saanin  , Ade Ricky Harahap
Published: March 2022

Background. Head injury is still a major health problem that is a common cause of disability and death. Moderate head injuries are quite common with outcomes varying patient examination of neutrophils and lymphocytes is quite routinely carried out in health services and the combination of these two values has a stronger predictive value for assessing outcomes in patients because it describes an inflammatory reaction. The GOS is a commonly used scale for classifying patient outcomes. This study aimed to determine the relationship between the ratio of neutrophil-lymphocytes (RNL) to the Glascow outcome scale (GOS) in moderate head injury patients with intracerebral hemorrhage.

Methods. This study has a cross-sectional with samples from moderate head injury patients with CT scan images of intracerebral hemorrhage in Dr. M. Djamil Padang in 2021 and 2022. The data comes from medical records and observations of samples that meet the inclusion and exclusion criteria, 36 subjects participated in this study.

Results. Most of the subjects (61.1%) were male. A total of 55.6% of subjects had RNL ≥ 7.35 with 44.4% of subjects having poor GOS. In this study, a statistically significant relationship was found between the ratio of neutrophil- lymphocytes in patients with moderate head injury with intracerebral hemorrhage and the Glasgow outcome scale (p-value = 0.005).

Conclusion. RNL can predict outcomes in moderate head injury patients with intracerebral hemorrhage.
FORMATION OF SOCIO-ECOLOGICAL PATTERNS OF BEHAVIOR OF FUTURE TECHNICAL SPECIALISTS
Authors:   Samara State Technical University, Chekanushkina E.N. , Ryabinova E.N.
Published: March 2022

The subject of the article is the formation of socio-ecological patterns of behavior among future technical specialists in the implementation of professional tasks of labor activity. The object of the article: environmental performance management system aimed at environmental safety, environmental protection, social and environmental responsibility. The purpose of the work is to substantiate the immanence of socio-ecological patterns of behavior of future technical specialists, their significance in the experience of formation in the educational process. Methodology of the work: search for a set of theoretical and methodological approaches, on the basis of which the principles of continuity and ways of forming behavioral patterns in the "man-nature-technology" system are determined through the prism of social, environmental and professional values in order to master socio-environmental competencies by future specialists of technical training areas. The results of the work indicate an increase in the level of development of ecological consciousness among future technical specialists of the experimental group: a conscious understanding of the importance of environmental problems, norms and rules of behavior in relation to nature conservation, responsibility for the consequences of their professional actions. The field of application of the results is practical pedagogical activity that forms socio-ecological patterns of behavior. It is advisable to introduce an environmental component into the disciplines of the curriculum in technical areas of training. An important aspect of the ecologization of disciplines is the principle of interdisciplinarity and continuity. Conclusion: The formation of socio-ecological patterns of behavior of future technical specialists contributes to the generation of educational results in the process of training highly qualified engineers.
Fuzzy and ANFIS Controllers to Improve the Power Quality of Grid Connected PV System with Cascaded Multilevel Inverter
Authors: Rupesh M , Vishwanath Dr. T S
Published: March 2022

In this paper, A Cascaded Multi level Inverter (CMLI) interconnected with the 10 KW PV System, Boost Converter along with Cascaded Feed Forwarded Neural Network (CFFNN) MPPT Controller is proposed to improve the Power Quality (PQ) for Linear, Non-linear and unbalanced loading conditions and minimize the total Harmonic Distortion (THD). The CMLI Consists of Novel type 9-Level Inverter with Reduced number of switches, and is connected to Bridged type inverter as cascaded, to get the required amount of Output voltage which can be used for grid integration. For controlling the inverter the Current controller is much required to control the current and to synchronize the Phase lock loop (PLL) is important. Here a new Adoptive Neuro Fuzzy Interface System (ANFIS) Control tuned with PI Controller is used to advance the performance of the power quality of the system under various loading conditions and undesired oscillations and THD can be improved compared with Conventional PI Controller and Fuzzy-PI Controller, Load voltage and current waveforms are analyzed under IEEE 519. The system is developed in the MATLAB environment to check the dynamic PV performance with MPPT controller and the results are found satisfactory.
Electrical Load Forecasting using ARIMA, Prophet and LSTM Networks
Authors: Ananthu Durga Prasad , K Prof. Neelashetty
Published: March 2022

Forecasting electrical load plays a vital role in power system planning. However, it is quite difficult to forecast electrical load, as the load on the system varies continuously concerning time and seasons. In this paper, we are proposing an advanced artificial neural network model to forecast short-term electrical load. The proposed method tested on historical data collected from Karnataka power corporation, India, and test results compared with other data-driven models viz. ARIMA, RNN, LSTM, and Prophet. The accuracy and RMSE values were calculated and observed that the proposed model was superior in a day and weekly ahead electrical load forecasting.
Smart Heart Disease Detection using Particle Swarm Optimization and Support Vector Machine
Authors: Awati Dr. J. S. , Patil Prof. S.S. , Kumbhar Dr. M.S.
Published: March 2022

Healthcare and disease detection in early stage is important in every human being. Proper and optimum detection of disease with smart controller is done using Particle swarm optimization (PSO) and Support Vector Machine (SVM). The research includes the Fuzzy Proportional Integral and Derivative (Fuzzy PID) controller was used with support vector machine to classify the heart disease. Particle Swarm Optimization is designed to remove the noise introduced in Electrocardiogram signal. Fuzzy PID controller was implemented for disease detection and prediction. Fuzzy PID controller provides most accurate and stable results.
An Integrated Fundus Image Segmentation Algorithm for Multiple Eye Ailments
Authors: Datta Parul , Das Prasenjit , Kumar Abhishek
Published: March 2022

The detection of eye illnesses requires a thorough inspection of all of the eye's structures. Most significantly, the presence of blood vessels, an optical disc, and any other unwelcome objects, if any are discovered, is critical in determining the type of eye disease present. Specifically, the goal of this research is to establish a thorough segmentation framework that will aid in the detection of anatomical anomalies in the eye. A novel segmentation technique for analyzing blood vessels, optical disc health, and the presence of exudates has been added into the software. - It was decided to add the detection of aberrant objects such as exudates into the algorithm in order to develop a generic segmentation method. In order to verify the accuracy of the segmentation at each stage, random sampling is employed at each stage. The segmentation is then validated using the intersection over union metric. The accuracy of the integrated segmentation method as a whole is 91.66 percent.
Contrast Enhancement of Colour Images by Optimized Fuzzy Intensification
Authors: Dixit Avadhesh Kumar , Yadav Rakesh Kumar , Mishra Ramapati
Published: March 2022

Contrast enhancement is a critical and difficult issue because inappropriate enhancement by existing global image enhancement techniques might result in over or under enhancement. Varying areas of the image that are lighted indicate different shades and contrast in the output images. Projected technique uses local colour correction in the Hue Saturation Luminance (HSL) colour space. To control colour fidelity in initial phase an optimized fuzzy intensification parameters are extracted automatically form fuzzy inference system for that particular image. Finally optimized Fuzzy Intensification parameter constants are used to minimize overexposed and underexposed areas and offers elevated contrast improvement. Several lab test conducted to analyze the effectiveness of the proposed method with existing strategies. Many quality evaluation parameters are evaluated, and findings are compared to some known colour picture contrast enhancement approaches. The produced output comparatively better than many existing techniques which support a moderate measure to visual perception of the processed images.
Pelatihan Penyusunan Perangkat Pembelajaran Berbasis IT
Authors: Pranoto Agung , Damayanti Rini , Ardiansyah Roely , Kaswadi Kaswadi , Sueb Sueb
Published: March 2022

The Community Service Program (Penmas) aims to improve the ability of teachers in terms of learning tools, improve the ability of teachers to use IT, and improve teacher administration skills. The implementation of Penmas is preceded by providing information to the Chair of the Foundation about the training activities that will be carried out, giving invitations to teachers who will be training participants, carrying out training from January 19-20 2022, and making reports on the results of implementing activities. The materials presented during the training were: 1) Administrative urgency for educators, 2) IT-based learning tools. Participants also get guidance on writing learning tools in tutorial activities and practice writing learning tools. The training participants were 40 SMK and MA Tanada Foundation teachers.
Shift of reaction equilibrium at high pressure in the continuous synthesis of neuraminic acid
Authors: Reich Jannis A , Aßmann Miriam , Hölting Kristin , Bubenheim Paul , Kuballa Jürgen , Liese Andreas
Published: March 2022

The importance of a chemical that helps fight against Influenca is, in times of a global pandemic, self-evident. Many researchers see the continuous production in chemical industry as its next stepping stone. For these reasons, the synthesis of N-Acetylneuraminic acid in a continuous fixed-bed reactor by an immobilized epimerase and aldolase was investigated in detail. The immobilized enzymes showed high stability with half-life times > 173 days under storage condition (6 °C in buffer) and reusability over 50 recycling steps and was characterized regarding the reaction kinetics (initial rate) and scalability (different lab scales) in a batch reactor. In a continuous flow reactor reaction kinetics were studied. A high pressure circular reactor (up to 130 MPa) was applied for investigation of changes in the position of the reaction equilibrium. By this, equilibrium conversion, selectivity and yield were increased from 57.9% to 63.9%, 81.9% to 84.7% and 47.5% to 54.1%, respectively. This indicates a reduction in molar volume from GlcNAc and Pyr to Neu5Ac. The circular reactor in particular showed great potential to study reactions at high pressure while allowing for easy sampling. Additionally, an increase in affinity of pyruvate towards both tested enzymes was found with the application of pressure as measured in a decrease of  for the epimerase and  for the aldolase of 108 to 42 mM and 91 to 37 mM, respectively.
Development of Soil Test based Fertilizer Prescription Equations under IPNS for Rice in Salt affected soils of Tamil Nadu
Authors:   Tamil Nadu Agricultural University, Anbil Dharmalingam Agricultural College and Research Institute, Tiruchirapalli, Tamil Nadu, India, Rajammal Sherene Jenita , Maragatham T, S ,   Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India, Santhi R ,   Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
Published: March 2022

Soil Test Crop Response - Integrated Plant Nutrition System (STCR - IPNS) technology in restoring soil fertility in sodic soil was well established in this study. STCR -IPNS correlation studies were conducted with rice in black calcareous sandy clay loam (Vertic Ustropept) sodic soils of Tamil Nadu, Southern India during 2019 – 2021and fertilizer prescription equations under Integrated Plant Nutrition System (IPNS) were developed. A ready reckoner of fertilizer doses at varying soil test values, for attaining 6 and 6.5 t ha-I target grain yield of rice has been worked out. Using these equations, test verification trials were conducted on farmer's holding in Manikandam block of Tiruchirapalli district. The per cent achievement of the targets aimed was more than 90 indicating the validity of the equations for prescribing fertilizer doses for rice under sodic soils. The STCR -IPNS treatments recorded relatively higher response ratio (RR) and benefit - cost ratio (BCR) over blanket, STCR - NPK alone treatments and farmer's practice. Post-harvest soil tests for NPK revealed that there was maintenance of soil fertility under sodic soil.
CRISIS AND DISRUPTION COMMUNICATIONS MANAGEMENT IN THE AIRPORTS SECTOR: THE EFFECTIVE USE OF SOCIAL MEDIA
Authors: De Fátima Silva Piedade Lúcia , Warnock-Smith David
Published: March 2022

Although the use of social media within the airport industry is not a new practice, there are still varying degrees of real and perceived concerns around how to best deliver positive rather than negative user engagement and experiences through social media platforms. This perceived risk becomes particularly apparent during times of significant airport operational disruption and crisis. Using an airport user questionnaire (in Portugal) and operational expert interviews (in the UK), this study aimed to determine the ways in which airport use of social media platforms should be integrated into overall airport crisis and disruption management strategies. This led to an evidence-based template communications flow model for airport operations managers and their communications teams to help ensure common and consistent messaging, positive user engagement/experiences, and reduced business fallout from significant disruption and crises. Future research should seek to test the usefulness of specific communications and social media guidance that airports use internally to determine if they are consistent with the different user preferences by crisis typology as detailed in this study.
A NEW CONSTITUTIVE MODEL FOR THE TIME-DEPENDENT BEHAVIOR OF ROCKS WITH CONSIDERATION OF DAMAGE PARAMETER
Authors: Zohravi Sara Ebrahimi , Lakirouhani Ali , Molladavoodi Hamed , Medzvieckas Jurgis , Kliukas Romualdas
Published: March 2022

Deformation and time-dependent behavior of rocks are closely related to the stability and safety of underground structures and mines. In this paper, a numerical-analytical model is presented to investigate time-dependent damage and deformation of rocks under creep. The proposed model is obtained by combining the elastic-visco-plastic model based on the theory of over-stress and stress hardening law with the sub-critical crack growth model. The advantage of this model is that it is in incremental form and therefore can be implemented numerically. First, the governing equations of the model and its numerical computational algorithm are described. The proposed constitutive model is then implemented in the FLAC code using the FISH function. Determination of model parameters and calibration is done by various laboratory tests performed on a type of gypsum. The creep test was performed on gypsum under a stress of 13 MPa, which is equal to 70% of its compressive strength. After determining the parameters, by fitting the creep curve of the presented analyticalnumerical model, a good agreement is observed with the creep curve obtained from the laboratory data. It is also observed that during creep, the damage parameter and wing crack length increase.
Detection of a Dense Group of Hypercompact Radio Sources in the Central Parsec of the Galaxy
Authors: Zhao Jun-Hui , Morris Mark R. , Goss W. M.
Published: March 2022

Using the JVLA, we explored the Galactic center (GC) with a resolution of 0.″05 at 33.0 and 44.6 GHz. We detected 64 hypercompact radio sources (HCRs) in the central parsec. The dense group of HCRs can be divided into three spectral types: 38 steep-spectrum (α ≤ −0.5) sources, 10 flat-spectrum (−0.5 < α ≤ 0.2) sources, and 17 inverted-spectrum sources having α > 0.2, assuming S ∝ ν

α
. The steep-spectrum HCRs are likely to represent a population of massive stellar remnants associated with nonthermal compact radio sources powered by neutron stars and stellar black holes. The surface-density distribution of the HCRs as a function of radial distance (R) from Sgr A* can be described as a steep power law Σ(R) ∝ R
−Γ, with Γ = 1.6 ± 0.2, along with the presence of a localized order-of-magnitude enhancement in the range 0.1–0.3 pc. The steeper profile of the HCRs relative to that of the central cluster might result from the concentration of massive stellar remnants by mass segregation at the GC. The GC magnetar SGR J1745−2900 belongs to the inverted-spectrum subsample. We find two spectral components present in the averaged radio spectrum of SGR J1745−2900, separated at ν ∼ 30 GHz. The centimeter component is fitted to a power law with α
cm = −1.5 ± 0.6. The enhanced millimeter component shows a rising spectrum α
mm = 1.1 ± 0.2. Based on the ALMA observations at 225 GHz, we find that the GC magnetar is highly variable on a day-to-day timescale, showing variations up to a factor of 6. Further JVLA and ALMA observations of the variability, spectrum, and polarization of the HCRs are critical for determining whether they are associated with stellar remnants.
The Arecibo Observatory as an Instrument for Investigating Orbital Debris: Legacy and Next Generation Performance
Authors: Murray James , Jenet Fredrick
Published: March 2022

In this paper, we investigate the ability of the Arecibo Observatory to characterize the orbital debris environment and compare it to the primary instrument used by NASA’s Orbital Debris Program Office, the Haystack Ultra-Wideband Satellite Imaging Radar (HUSIR). Arecibo’s location (18.°3 N) increases the percentage of observable orbits (relative to HUSIR) by 27%, which gives Arecibo access to a much larger and previously unmeasured portion of the environment. Due to the recent collapse of the Arecibo dish, in addition to exploring historic capabilities of the Legacy Arecibo Telescope, estimates of the performance of the proposed Next Generation Arecibo Telescope (NGAT) are explored. We show that the current NGAT design could have a sensitivity comparable to the Goldstone Orbital Debris Radar, currently NASA’s most sensitive orbital debris radar. Additionally, design suggestions are presented that would significantly improve the capabilities of the NGAT for orbital debris investigations. We show that, with appropriate hardware upgrades, it would be possible to achieve a minimum-detectable debris size as small as 1 mm. These capabilities would allow data from Arecibo to significantly improve short-term debris environment models, which are used to inform spacecraft design and operations, particularly for orbital debris smaller than 3 mm, which pose the highest penetration risk to most spacecraft.
Nursing Students’ Clinical Practice Experience during the COVID-19 Pandemic: A Qualitative Study
Authors: Susmarini Dian , Sumarwati Made , Handayani Fitria , Iskandar Asep
Published: March 2022

BACKGROUND: The COVID-19 pandemic is putting clinical practice in all nursing schools to the challenge. While students should be cautious of infection, they still need to practice in a hospital setting. AIM: The purpose of this study is to gain insight into students’ clinical experiences during the COVID-19 pandemic. METHODS: This study employed a qualitative methodology and a phenomenological approach. A purposive sampling technique was used to recruit seven clinical nursing students. We conducted semi-structured interviews until the data were saturated. Data were analyzed with thematic analysis to identify and describe the patterns. RESULTS: Five major themes emerged from students’ clinical practice experience during the COVID-19 pandemic: Psychological response, obtained support, inconvenient experience, positive side, and coping. CONCLUSION: The findings suggested that nursing school must address the difficulties students perceive, as clinical practice learning will almost certainly change in the following years due to the epidemic.
Evaluation of the Antibacterial Activity and the Remineralizing Potentiality of Two Natural Extracts and Their Mixture (In Vitro Study)
Authors: Saleh Reham , Nagi Shaymaa , Elgamily Hanaa , Hassan Shahinaz , El-Hashemy Hadeer , Zaazou Mohamed
Published: March 2022

AIM: This study aimed to assess the antibacterial activity against the cariogenic Streptococcus mutans (ATCC 25175) and the commensal Actinomyces viscous (1300 EMCCN) oral bacteria and to determine the remineralizing effect of the previously demineralized bovine enamel lesion of ginger extract, eggshell extract as well as their mixture. METHODS: The two different extracts; eggshell extract and ginger extract were prepared as well as their mixture in an equal volume. Their antibacterial activity against S. mutans and A. viscous was assessed by well diffusion test and clear zones diameters measurement (mm). Chlorhexidine and Dimethyl sulfoxide solution were utilized as positive and negative control, respectively. Thirty-six anterior bovine teeth were subjected to artificial caries pH cycling regimen including alternate demineralization and remineralization for 5 days. Then they were randomly divided into three groups (G) (n = 12): G1: Ginger, G2: Eggshell, and G3: Mixture. Specimens of each group were separately immersed in 50 ml of the tested extract for 12 h seven successive days. Vickers Microhardness and Energy Dispersive X-ray (EDX) Analysis were assessed at baseline, after demineralization and remineralization. RESULTS: Both extracts had antibacterial effect against the profile growth of S. mutants. However, the mixture showed the highest statistically significant mean inhibition zone diameters (mm), followed by ginger and eggshell extracts with no statistically significant difference between them. Regarding the remineralizing efficacy; G1:(Ginger) group showed the highest statistically significant mean microhardness followed by G3:(Mixture) group, then eggshell treated specimens; which showed the least statistically significant mean microhardness values. Regarding EDIX analysis results, a statistically significant increase in F (wt%) after remineralization in both eggshell and ginger treated specimens. CONCLUSION: Ginger as well as mixture extracts not only have antibacterial effect against cariogenic bacteria but also have a strong remineralizing ability of demineralized enamel.
Digital Nursing Technology to Achieve Job Satisfaction: A Systematic Review
Authors: Setyowati Setyowati , Arruum Diah , Handiyani Hanny , Koestoer Raldi Artono
Published: March 2022

BACKGROUND: Technological advances are needed to provide nursing care for patients, however, there are still different perceptions of nurses in accepting its application in health care. This is because the use of these technologies can affect job satisfaction of nurses.

AIM: This study aims to identify the digital technology in nursing and its effect on nurses’ job satisfaction.

METHODS: This study used a systematic review method, where the articles are obtained on scientific databases such as PubMed, PubMed Central, Science Direct, Scopus, and Web of Sciences, that were published from 2019 to 2021. Meanwhile, the preferred reporting items were analyzed using Systematic Reviews and Meta-Analyses.

RESULTS: Out of the 312 articles that were screened and checked, only 17 fulfill the eligibility criteria. The result showed that six articles were perceived as positive on the use of technology by nurses, six articles were positive and negative, and five articles were all negative. Furthermore, there were ten articles on technology information and communication, five on sensor technology, one article on the use of sensors and technology information, and another one article on technology.

CONCLUSION: Nurses have a positive response because technology makes the completion of work easier, maintains patient safety where job satisfaction is affected, however, negative perceptions are the basis for solving the problems. Therefore, support from their leaders is required to motivate and create nurses’ awareness of technology to achieve patient safety goals and centered care.