bluuebunny/crossref_metadata_2025 huggingface dataset:
Test Case Design Of Security Threats Through State Machine OCL
Authors:   Riphah International University Islamabad, Pakistan, Raza Asif , Faiz Rizwan Bin ,   Riphah International University Islamabad, Pakistan, Muslim Hafiz Syed Muhammad ,   COMSATS University, Islamabad, Pakistan
Published: June 2023

Software testing is one activity for Software Quality Assurance (SQA). One way to test is through Black box test cases at design level. Since UML is a de-facto design language and is one of the most used design language now a day. Therefore, there is need to design black box test cases using UML behavioral diagrams. Object Constraint Language (OCL) is a formal language to write constraints on UML diagrams as it is unambiguous. Although test cases against robustness have been designed through OCL expressions but no test cases as yet have been designed against security specific authentication, access control and availability. Specification and testing of security specific authentication, access Control and availability through OCL. An experiment is performed with a hypothesis ‘if Security Specific Authentication, Access Control and Availability is specified through OCL in state diagram then Test cases can be designed’. We have specifiedsecurity in OCL then same OCL expressions are used to model security in UML state diagram. Furthermore, mutation testing is performed on OCL expressions. Then ECP is done using same extracted mutants. Security specific authentication, access control and availability is specified in OCL and then test cases are designed using a black box testing technique Equivalence Class Partitioning. Hypothesis results shows that one can design test cases through OCL. This thesis shows that Specification and Testing of Security specific authentication, access control and availability through OCL.
Mathematical model of personal information security under the influence of media information
Authors:   State University of Telecommunications, Vetlytska O. S.
Published: June 2023

As mass media continue to play an increasingly important role in our daily lives, people face an increasing number of security risks associated with the consumption of media information. To better understand the factors that contribute to individual security in this context, the paper proposes a mathematical model that examines the relationship between the number of security breaches, the amount of media information consumed, the level of security measures taken by an individual, and the level of media literacy an individual possesses. The equations that represent these relationships are presented, and possible values for the model parameters are suggested. The model provides a framework for analyzing and improving individual safety in the context of media consumption, and has the potential to be used in practical applications such as designing effective safety awareness campaigns and designing safer media technologies.
Security testing of crypto exchanges based on Owasp technology of Web Security Testing Guide
Authors:   State University of Telecommunications, Horlan O. A.
Published: June 2023

The paper analyzed the security testing of crypto-exchanges, identified the inadequacy of checks in it, and found that the existing methodologies are insufficient to ensure the security of crypto-exchanges. The biggest attacks on crypto platforms, their causes, and how they could be avoided are explored. The essence of crypto-exchanges and their role in the modern world, the current state of security of crypto-exchanges, best practices and recommendations for improving the security of crypto-exchanges were developed. Based on research, a methodology for testing the security of crypto exchanges, developed on the basis of the OWASP Web Application Security Guide, is proposed.
DEVELOPMENT OF A SYSTEMIC MODEL OF THE QUALITY OF SERVICE IN INFOCOMMUNICATION COMMUNICATION NETWORKS TO ENSURE LOW TRAFFIC DELAY
Authors:   State University of Telecommunications, Zakharzhevsky A.H.
Published: June 2023

The question of quality of service in networks of the latest generation is studied. The impact of heterogeneous traffic on the main quality of service indicators reflecting the probability of packet loss and delivery delay over time is evaluated. A model of quality of service in information communication networks has been developed to ensure low traffic delay. Taking into account the concept of quality in information communication networks, the issue of quality of service in networks of the latest generation becomes important from the standpoint of ensuring high reliability and reliability of information transmission, which significantly affects the quality of services provided to the user. This, of course, determines the need to control various parameters of equipment and communication lines, which are determined both by the features of the transmission system and by the parameters of leased channels and tracts. The basis for determining the quality of service, as mentioned above, is the provision of the international concept of quality of service (QoS). According to the requirements of the compliance control model proposed in the concept, the approach to quality indicators is structurally related to the OSI reference model. The main advantages of modern technologies of information communication networks are undoubtedly 5G technologies, which already support such resource-intensive services as massive machine-to-machine communication, ultra-reliable communication and low-latency communication. All of them require high data transfer rates, low millisecond latency, and connectivity of millions of devices. At the same time, it is necessary to ensure a high level of quality of service (QoS), which plays an important role in 5G technologies. The proposed model makes it possible to evaluate not only the quality of service of the combined traffic flow of Internet of Things, tactile Internet, and augmented reality services, but also the delivery delay and the probability of packet loss. The simulation results showed that the parameters of the quality of service of the traffic of the Internet of Things and other modern applications differ significantly during the service of the aggregate flow. When studying the service of aggregated traffic, it was established that the probability of packet loss is higher for it than for Internet of Things traffic. In addition, this difference becomes more significant when the intensity of the incoming load increases.
METHOD OF STATISTICAL ANALYSIS OF RANDOM SEQUENCES GENERATED BY GENERATORS OF RANDOM AND PSEUDO-RANDOM NUMBER
Authors:   State University of Telecommunications, Popereshniak S.V.
Published: June 2023

The problems of the Internet of Things, in particular the need to protect confidential data, lead to the use of encryption and decryption methods, which, in turn, rely on the use of random numbers. The use of HVDC can help ensure the security of this process, but it is important to use high-quality HVDC and thoroughly test them to avoid security vulnerabilities. Statistical analysis is used to assess the randomness of the generated sequences by testing them using statistical tests of randomness. These tests evaluate various statistical properties, such as the frequency distribution of the generated numbers, the distribution of consecutive numbers, and the presence of patterns. By performing a statistical analysis, you can identify any flaws or biases in the operation of the random number generator and improve its quality. The article checks the sequence for randomness using two- and three-dimensional statistics. A mathematical model is built, a theorem is given. A scheme of statistical analysis of sequences was built, based on which software engineering methods were used. Examples of using binary statistics for bit sequence analysis are given. The use of statistical analysis of the randomness of sequences generated by random (or pseudo-random) number generators is a popular trend, as it is critical to the reliability and security of various computing systems and applications, including the Internet of Things (IoT), cryptography, simulations, and scientific calculation. With the growing importance of cybersecurity and data privacy, the demand for reliable and secure random number generators is increasing, and the use of statistical analysis to assess the randomness of sequences generated by random (or pseudo-random) number generators is becoming increasingly critical.
SYNTHESIS AND CHARACTERIZATION OF BARIUM MHEXAFERRITE BaFe12-2xCoxZnxO19 (0 ≤ X ≤ 1) PREPARED FROM CO-PRECIPITATION
Authors: Susilawati  , D. Pangga  , M. Zainuri  , A. Doyan  , S. Prayogi  , M. R. Bilad
Published: June 2023

Barium hexaferrite (BaFe12O19) has attracted research attention due to its diverse applications. This study reports the synthesis of barium M-hexaferrite (BaFe12-2xCoxZnxO19) powder using co-precipitation of BaCO3 and FeCl3.6H2O powder, Co and Zn powder as a dopant material on the variation of x = 0, 0.2, 0.4, 0.6, 0.8, and 1. Results show that co-precipitation is an effective method for the synthesis of nanomaterial barium M-hexaferrites (BaFe12-2xCoxZnxO19) containing >89% of Fe elements and an average particle size of 50 nm. The DTA/TGA analyses show phase transformation at T ≤ 285°C and T = 750-840°C. The results of refinement using the Rietveld method show that the barium M-hexaferrite phase begins to form at low temperatures, with the best yield at x = 0.4. At high temperatures T > 740°C, it tends to form single-phase α-Fe2O3 (hematite). Substitution ion dopant Co/Zn only slightly changes the lattice parameters of the hexagonal basic crystal structure
AN ASSESSMENT OF BACTERIOLOGICAL AND PHYSICOCHEMICAL PROPERTIES OF THE SPRING WATER FROM SIKKIM, INDIA
Authors: A. Subba  , S. Jha  , M. Pandey  , K. G. Dolma  , Ajeya Jha
Published: June 2023

The study’s aim is to assess drinking water quality in the springs of the state of Sikkim. Physico-chemical properties and pathogenic bacterial presence (including their drug resistance profile) have been studied across seasons. Important findings are (a) the concentration of iron and manganese is above the permissible limit; (b) high contamination with pathogenic bacteria exists. These are Escherichia coli (22.4%) followed by Klebsiella spp. (20.6%), Citrobacter spp. (7.5%) and Shigella spp. (7.1%). Isolated samples show that these bacteria have high resistance to common antibiotics.
MODIFICATION NANO-SIZE OF ZINC OXIDE (ZnO-NS) WITH POLYETHYLENE GLYCOL AND APPLICATION AS ANTIMICROBIAL
Authors: Y. Rilda  , F. Rivaldo  , Admi  , Refinel  , Armaini  , A. Agustien  , H. Pardi
Published: June 2023

Sol-gel is a simple method used to synthesize nano-size ZnO (ZnO-NS) in many applications. It acts as an antimicrobial agent for Escherichia coli and Aspergillus niger infections. The nano-size and patterned nanorods structure of ZnO enhances anti-microbial properties. This study used Polyethylene Glycol (PEG-6000) polymer compounds with variations in their 3, 5, and 10% compositions as templates for the formation of the nanorods. The morphology of the ZnO-NS produced determined the increase in anti-microbial activity. Furthermore, those generated from 5% PEG composition (ZnO/PEG-5) have the smallest size with the greatest anti-microbial activity on inhibition zones against E. coli and A. niger, each of 8.5-10.5 mm. There are morphological differences in each variable in the homogeneity distribution level of the spherical and rod dimension patterns of ZnO-NS. This is based on characterization with UV-VIS-DRS and Fourier-Transform infrared (FT-IR) for the analysis of Zn-O interactions at wave number 500-550 cm-1. Field Emission Scanning Electron Microscopy-Dispersive Scanning Electron Microscope (FE-SEM) and Energy dispersive X-ray spectroscopy (EDX) was used for dimensional pattern analysis, while X-ray diffraction (XRD) was applied for hexagonal wurtzite ZnO structures following the ICSD-65122 standard.
IMPROVING CARBON DOTS OPTICAL PROPERTIES OF MOLASSES USING EDTA AS A PASSIVATION AGENT WITH THE MICROWAVE METHOD
Authors: Marpongahtun  , Siregar I. P. H , Irham W. H , Saragih S. W
Published: June 2023

Synthesis of carbon dots from molasses using the microwave method with the addition of EDTA as a passivation agent has been carried out. Addition of EDTA to improve the optical properties of the carbon dots. The resulting carbon dots were characterized by UV, UV-Visible, PL, FTIR, and TEM lamps. A physical test of carbon dots under a UV lamp showed a change in light intensity, carbon dots with the addition of a passivation agent were brighter than those without a passivation agent. Analysis of the optical properties of carbon dots using UV-Vis spectrophotometer and photoluminescence showed a significant increase in absorbance intensity and emission intensity from 500 a.u to 3600 a.u. FTIR analysis shows the formation of carbon dots which are indicated by the presence of C=C, O-H, C-H, C-O-C, and C-N groups at certain wavenumbers. TEM analysis showed that the carbon dots produced had an average diameter of 1.8 nm. From the analysis, it is identified that the addition of EDTA can improve carbon dots’ optical properties.
EVALUATION OF MULTIDIMENSIONAL BIOLOGICAL ACTIVITIES OF SYNTHESISED COMPLEXES OF Fe(II), Co(II), Ni(II) and Cu(II) USING SCHIFF BASE LIGANDS
Authors: Sapna  , Kumari Neelam
Published: June 2023

Schiff base ligands are chemical compounds having diverse biological activities like industrial, agriculture and pharmaceutical. The current work discusses the evaluation of the biological properties of different synthesized mononuclear Fe(II), Co(II), Ni(II) and Cu(II) complexes. The complexes were synthesized using a condensation reaction which demonstrated the appearance of White, Cream, Black and Green. Biological activities for synthesized metal complexes were assessed against S. aureus, B. cereus, E. coli and P. aeruginosa and by comparing the zones of inhibition it can be depicted that metal complexes are fairly more effective inhibitors of gram-positive bacteria. Furthermore the antioxidant potential of these complexes was also evaluated and it concluded that copper complexes showed promising antioxidant activity which is higher in association with Ni(II), Fe(II), and Co(II). Hence, these metal complexes were biologically active and further studies are required.
RELIABILITY OF THE CONTROL OF ELECTRONIC DEVICES BY LOW-FREQUENCY NOISE
Authors:   Vinnytsia National Technical University, MYKHALEVSKIY DMYTRO
Published: June 2023

The article examines the stages of input and output control of electronic equipment products according to the level of their own low-frequency noise, namely, the measurement of an informative parameter and its comparison with predetermined limits. It was established that for each type of control there is a need to have a methodology for assessing the compliance of control results with valid characteristics and its effectiveness. One of the main parameters of the effectiveness of all stages of control is the probability, which requires separate studies and the definition of a universal mechanism for its assessment. Therefore, the task was set to obtain a complete method of probability assessment for the input and output control of electronic equipment products by the level of their own noise. To determine the probabilistic characteristics of the control, the main informative parameters were investigated: the measuring noise voltage, which is random in nature, and the random error. It is established that the measured value has a confidence interval that takes into account measurement errors and determination of control limits. Control limits were obtained, on the basis of which analytical expressions were obtained for the distribution of the informative parameter within the specified limits for reliable and unreliable electronic products. Taking into account the limit of separation of products into suitable and unsuitable, control limits were proposed, which contain the coefficient of possible error cut-off. A generalized analytical expression for evaluating the probability of control is obtained, which takes into account the minimization of the effect of systematic and random factors influencing the result to increase the efficiency of input and output control on the level of low-frequency noise.
APPLICATION OF TRANSPORT MODELING IN URBAN PLANNING USING THE EXAMPLE OF VINNYTSIA
Authors: PERLOV VIKTOR , KYRYTSYA INNA ,   Vinnytsia National Technical University
Published: June 2023

The issues of using transportation modeling for decision-making in urban planning are discussed using the example of Vinnytsia. Macro-simulation allows for analyzing overall traffic flow without reproducing the movement of individual vehicles in detail. It enables a quick evaluation of different scenarios for the development of the transportation network and determining the effectiveness of road traffic management strategies. The transportation model of the city enables analyzing the load on the road network in the current state and predicting this parameter for scenarios of implementing new infrastructure projects. Examples of load maps for the road network of Vinnytsia and an individual transport hub are shown from the transportation model of the city. Micro-modeling is the process of creating a mathematical model for a detailed analysis of vehicle movement in small areas (intersections, street sections, enterprise areas, etc.). An example of micro-modeling results for one intersection is presented. The application of micro-modeling in evaluating changes to the transportation network is an effective tool that allows municipalities to avoid inefficient use of funds and transportation mistakes that worsen traffic conditions. A list of tasks for micro and macro-modeling is analyzed. The main advantages and disadvantages of modeling and the risks that may arise from its use are described. The importance of the transportation model of the city is shown in both strategic and tactical approaches.
COMPOSITE MIXTURES BASED ON SYNTHETIC POLYMERS AND FILLERS AND EQUIPMENT FOR 3D PRINTING WITH THEM
Authors: POLISHCHUK ANDRII , POLISHCHUK OLEH , LISEVICH SVITLANA , URBANIUK YEVHEN ,   Khmelnytskyi National University, RUBANKA MYKOLA ,   Kyiv National University of Technologies and Design
Published: June 2023

The article states that the use of composite materials instead of traditional materials allows you to significantly reduce the weight of the product, while not changing the strength characteristics of this material. It was determined that polymer composite materials based on metal powders, high-strength organic (aramid) and carbon fiber fillers with a polymer matrix are promising for use as structural materials. Fillers are used to improve the operational properties of the composite material (strength, stiffness, heat resistance), give them various specific properties and reduce the cost. The classification of polymer composite materials by matrix and filler is presented. It is noted that the greatest variety of properties can be obtained using solid fillers of different nature (metals, ceramics, polymers) and structures. It has been established that both the type of filler and the shape and size of the particles are important when forming certain properties of polymer composite materials. It was determined that composite materials are used in additive technologies, in particular in 3D printing. Examples of the production of composite filaments by various companies, including various types of fillers, are given. The developed technology of printing with a mixture of polymer connector and filler using a 3D printer, which includes certain stages, is presented. Polymer materials and solid fillers of various nature were selected as the matrix for experimental research and their properties were described. The classification of equipment for forced mixing of materials is described. The developed extruder that prints with granules or composite mixtures of polymer materials and the 3D printer on which it is installed are presented. Composite mixtures for conducting experimental studies are given. The parameters of the printed samples to be examined are specified.
PARAMETERS OF FLOWS OF GRAIN MATERIALS
Authors: KHODIACHIY VLADYSLAV , NIKITIN OLEXANDER ,   National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»
Published: June 2023

Solving the issue related to the study of flows of loose materials is due to the development of modern sensors of flow parameters of loose materials. In particular, it can be about flow sensors. This type of sensors is one of the most attractive for use in the control and regulation channels of modern automated production control systems in the agricultural and food industry. The issues considered in this article relate to the mechanics of flows of loose materials. The field of mechanics, which studies the static and dynamic aspects of loose materials, is one of the basic branches of mechanics in general. The main focus is on free gravity flow. Grain material is considered as loose material. Taking into account the peculiarities of loose material and the specifics of various industries, the problem of creating flow parameter sensors was and will be relevant. The definition of the object and process for which the sensor is being developed, namely the study of flows of loose materials, is also relevant. The article considered how loose material behaves during free fall from silos in an airless space and also in an airy one. The consumption of bulk materials from the bottom opening of the silo, in most cases, is not stable and leads to the formation of a variable flow of bulk material. After the grain leaves the silos opening, a gravitational flow is formed, consisting of dispersed grains and an air flow. The formed flow of bulk material can be considered as an information factor for determining the consumption of bulk material and a factor in creating effective sensors for automated control systems of technological processes. Formulas for calculating the flow rate of loose material in a gravity flow and the flow volumes at different states were also given in the article.
METHOD OF AUTOMATED DETECTION OF ARTICLE TERMS USING A DECISION TREE
Authors: SYNKO ANNA , ZHEZHNYCH PAVLO ,   Lviv Polytechnic National University
Published: June 2023

Every day, the number of users of virtual communities is increasing, and therefore the data that occurs during communication between them. The posted data can contain valuable information because they contain not only the manufacturer’s opinion, but also consumer experience about a certain product. But, due to the fact that virtual communities have a weak structure in terms of providing information, they are more focused on entertaining content – they may contain data that do not carry a meaningful load, and also, when placing data, not all users foresee techniques that will help increase the relevance of the search for this data. Therefore, the search for target data requires significant time costs. To improve the search for data in the article, a method is proposed that allows you to analyze the content of posted posts and identify keywords from a certain subject area. This method is automated and works on the basis of a previously developed dictionary of key phrases or regular expressions with weighting coefficients of belonging to one or another term. As a result, a decision-making tree is built for each term, which determines the weight of the term to the content of the post, article. At the same time, the level of location of the post in the discussion is taken into account, because the discussion contains a set of chronologically ordered posts. Posts placed at higher levels have a higher coefficient in the calculation. While posts are placed at lower levels – lower weighting factors. Identified key phrases before the specified term are ordered in descending order of weight. At each level of the tree, the total weight of key phrases must be equal to one. To process the data from the virtual communities, they were downloaded using the data consolidation technique. As a result, the concept of consolidated data storage was introduced, which allows collecting data from disparate sources. The paper presents the weight calculation for one term from part of the CodeProject community post.
A METHOD FOR SYNTHESIZING HARDWARE AND SOFTWARE TOOLS TO ENSURE THE STABILITY OF A CORPORATE COMPUTER NETWORK
Authors: LYSENKO Sergii , Sakhniuk Vitalina , BONDARUK Oleg ,   Khmelnytskyi National University
Published: June 2023

The paper represents a method for ensuring the resilience of a corporate computer network under the influence of various types of threats. This article will provide an overview of the aspects of resilience and existing approaches to ensuring resilient routing. This article is the result of many studies and experiments, and evaluating the final result, it can be noted that this method can successfully reflect the possible importance of a node when it comes to epidemic dynamics for various network models to ensure network resilience. A possible way to solve the problem was to use the theory of linear stationary systems and the phenomenon of propagation in networks as the basis of the method. Complex interdependencies between their elements characterize various systems. The method of synthesizing hardware and software means of ensuring the stability of a corporate computer network consists of such steps as representing networks as a linear stationary system, modelling the stability of a computer network in the context of epidemics by using virtual network expansion, studying the stability of a computer network in the context of uncertain data transmission and virtual network expansion, processing input data received from the modelled computer network, etc. To solve the problem, the method involves the theory of linear stationary systems and the use of the NiR metric, which can successfully reflect the possible importance of a node when it comes to the dynamics of an epidemic for various network models to ensure network resilience. The method is tested by simulations, the results of which show a high correlation with the actual propagation dynamics modeled by SI and SIR processes. NiR also shows a small variance, which means it is reliable for different computer network topologies. The method also involves finding the most critical nodes in a computer network, for which a cascading failure model was used, which models overloaded nodes as non-functional.
ARCHITECTURE OF A SOFTWARE SYSTEM FOR SOIL POLLUTION PROCESSES MODELING AS A RESULT OF DIFFUSION OF NITROGEN DIOXIDE IN SOILS AND GROUNDWATER
Authors: TYMCHYSHYN VASYL , OTOO FRANK ,   West Ukrainian National University
Published: June 2023

The work proposes a software architecture that will allow simulating the processes of soil pollution due to the diffusion of nitrogen dioxide in soils and groundwater. To achieve this goal, mathematical models were used to predict the dynamics of concentrations of harmful emissions, as well as a model of diffusion of nitrogen dioxide in the soil and reservoir. The use of mathematical models will allow predicting changes in concentrations of nitrogen dioxide at a certain point of pollution. In addition, the model of diffusion of nitrogen dioxide in the soil and reservoir will help to determine the ways of the spread of pollution and its impact on the environment. Such models are based on difference equations or differential equations in partial derivatives, which allow to describe the dependence between various factors. The software architecture includes the necessary modules for entering initial conditions, performing calculations, visualizing results, and making adjustments to the model if necessary. A number of diagrams are presented that illustrate the features of interaction of system modules at the level of classes and components
METHODS OF SUPPORTING THE DECISION-MAKING ON THE POSSIBILITY OF PROVIDING GENERAL MEDICAL, THERAPEUTIC AND DENTAL SERVICES ON THE BASIS OF CIVIL LAW
Authors:   Khmelnytskyi National University, HNATCHUK Yelyzaveta
Published: June 2023

The article proposes a method for semantic analysis (parsing) of natural language general contracts for the provision of medical services and derivative contracts – contracts for the provision of therapeutic services and contracts for the provision of dental services – which forms the input data for the method of decision support for the provision of general medical services on the basis of civil law, for the method of decision support for the provision of therapeutic services on the basis of civil law, and also for the method of decision support for the provision of dental services on the basis of civil law. The developed method of semantic analysis (parsing) of natural language contracts differs from the known ones in that it is based on the requirements of the current civil law regarding medical decision-making. Since in order to determine the possibility/impossibility of making a medical decision, it is only necessary to know whether each essential condition is present or absent in the contract, the method of contract parsing is simple and straightforward. The simplicity of this method ensures high speed and low cost of parsing natural language contracts. The article develops methods for supporting decision-making on the possibility of providing medical services, therapeutic services and dental services on the basis of civil law, which reflect the peculiarities of making a decision on the provision or non-provision of certain medical services based on compliance with the requirements of civil law to such services and to the execution of a civil law contract for the provision of such services, ensures adaptation to the specifics of the subject area, and allows preventing negative consequences for the clinic and its patients (for example, prevent the impossibility of bringing the guilty party to justice), and is the theoretical basis for the development of information technology to support medical decision-making based on civil law.
Educación para el Trabajo y Desarrollo Humano: un horizonte para las competencias laborales desde la virtualidad
Authors: Ospina Mejía Valentina , Balaguera Bocanegra Cristian Camilo , Pascuas Losada Diego Fernando , Murcia Londoño Euclides
Published: June 2023

En la actualidad, los procesos educativos se encuentran atravesando por una época de transformación debido a la pandemia por COVID 19 que afronta el mundo, en este sentido, el desarrollo de competencias laborales desde la virtualidad se consolida como una propuesta de interés para que los estudiantes puedan apropiar destrezas ocupacionales que le faciliten su incursión en el mundo laboral. Este capítulo de libro aborda precisamente esta temática y presenta dos experiencias de mediación referentes a redes sociales y herramientas virtuales en contextos educativos diferentes. En este sentido, la propuesta investigativa planteada se dividió en dos líneas de trabajo acordes a cada población objeto de estudio, la primera línea de trabajo se denominó iniciación musical, que se instituye como eje formador de competencias comunicativas de un grupo de 6 madres comunitarias de la Asociación Nueva Generación del Instituto Colombiano de Bienestar Familiar (ICBF) de la ciudad de Armenia (Quindío).La segunda línea corresponde al desarrollo de competencias laborales en electrónica digital en estudiantes de grado 11.º del Instituto Técnico Superior de la ciudad de Pereira.También, se precisa que el objetivo general formulado para ambas líneas tenía como propósito fundamentar, a través de herramientas virtuales y redes sociales, competencias laborales en diferentes contextos educativos, para lo cual , como ya se mencionó , se usaron métodos cualitativos y cuantitativos de la investigación en Ciencias Sociales, donde los hallazgos más representativos se enmarcaron en que las madres comunitarias, a través de la música, lograron adoptar competencias comunicativas que les facilitó el trabajo con los niños a su cuidado, mientras que el uso de Tinkercad, como herramienta para la simulación de circuitos, ayudó a potenciar los conocimientos en electrónica digital de los niños y niñas participantes del proceso educativo mediado por esta herramienta.
WhatsApp: más que un medio de comunicación en la escuela
Authors: Pérez Ortegón Hugo Armando , Escárraga Vallejo Sandra Lucía
Published: June 2023

El momento histórico de esta investigación coincidió con la declaratoria de la emergencia sanitaria, económica, social y ecológica causada por la pandemia del coronavirus (COVID-19) y, con ello, el desafío que significó para los docentes los procesos de enseñanza, teniendo en cuenta el poco o nulo acceso a redes de internet y equipos que permitieran a los estudiantes beneficiarse del aprendizaje basados en las tecnologías de la información y la comunicación (TIC).El objetivo de este estudio consistió en establecer cuál era la contribución pedagógica de WhatsApp en los procesos de enseñanza-aprendizaje. Para ello, la investigación se desarrolló en dos fases principales, en la primera, se realizó una encuesta a diversos docentes, que buscó explorar cuáles eran las estrategias pedagógicas y metodológicas para el desarrollo del trabajo en la modalidad remota con los estudiantes y a través de qué medio lo hacían. En la segunda fase, se planteó una entrevista a los mismos actores, con el fin de profundizar en los usos pedagógicos del WhatsApp. Con todo esto, el investigador estableció una propuesta metodológica y pedagógica que permitió estructurar una guía para el aprendizaje remoto por medio de WhatsApp.
Potential for Aquaculture of Lais Fish (Kryptoterus palembangensis) in Swamplands
Authors: Yonarta Danang , Taqwa Ferdinand Hukama , Wijayanti Marini , Jubaedah Dade , Muslim Muslim , Syaifudin Mochamad
Published: June 2023

Ikan lais (Kryptopterus palembangensis) merupakan salah satu ikan endemik yang ada di Sumatera Selatan. Ketersediaan ikan lais di alam mulai menurun karena penangkapan yang dilakukan oleh masyarakat secara terus menerus akan mengganggu kelestarian ikan lais. Diketahui nilai ekonomis yang tinggi menjadi penyebabnya. Oleh karena itu perlu dilakukan upaya untuk pengembangan budidaya ikan lais agar dapat diproduksi secara terkontrol. Metode penulisan yang digunakan yaitu studi pustaka. Adapun teknologi dan manajemen dari ikan lais diantaranya perbedaan padat tebar pada keramba jaring apung, pemberian jenis pakan berbeda, perendaman larva pada larutan probiotik, pengaruh perbedaan suhu dan pematangan gonad dengan mineral Fe. Kemudian untuk rata-rata kualitas air dalam pertumbuhan ikan lais adalah suhu 25,20-32,00 ºC, kisaran pH sebesar 4,70-7,90, DO 2,60-8,00 mg L-1 dan kandungan amonia berkisar 0,010-2,000 mg L-1. Ikan lais termasuk dalam kelompok ikan karnivora karena jenis makanan utamanya adalah ikan kecil, insekta dan udang. Pada ikan yang diteliti secara terkontrol, pakan menggunakan Tubifex sp. memberikan pertumbuhan dan kelangsungan hidup yang tertinggi. Pemijahan ikan lais baji satu kali dalam setahun dengan pola pemijahan total spawner di musim penghujan yang dimana pada saat permukan air mulai naik dan pemijahan dilakukan di dalam celah-celah bebatuan. Gambaran sel darah merupakan aspek pendukung dalam menentukan status kesehatan ikan. Kondisi fisiologis ikan yang sehat ditandai dengan adanya pertumbuhan yang meningkat. Fisiologis pertumbuhan ikan lais dalam keadaan sehat yaitu, total eritrosit 264,00 ± 3,00 x104 sel mm-3, hemoglobin 8,3±0,11 g/dL, hematokrit 26,66±0,57 %, total leukosit 2,53±0,01 x 104 sel mm-3 dan Glukosa darah 89,00 ± 1,00 mg/dL
Between Roman Culture and Local Tradition
Authors: Barbara Zając
Published: June 2023

Between Roman Culture and Local Tradition presents a detailed analysis of the Roman provincial coinage of Bithynia and Pontus during the reign of Trajan (98-117), when 14 cities struck coins. The book characterises individual mints, the rhythm of monetary production, iconography and legends, and considers the attribution and dating of individual issues. Context is provided by studies on other categories of artefacts discovered in the local area, including epigraphic and material ones, such as fine art, sculptures and architectural remains. The extent of circulation is also analysed, as well as the coinage of the border centres of neighbouring provinces such as Thrace, Asia and Galatia-Cappadocia. Reference is made to historical sources, principally the correspondence of Pliny the Younger with the emperor, which can help to show the realities of life for the inhabitants of individual centres, including ongoing construction projects or local problems. Overall the book aims to reconstruct the coinage policy of individual cities and culture and religion in various centres during this period, as well as contacts and relationships among the local communities. In turn, the studies of individual cities allow for the creation of a general picture of coinage in the province.
Tratamento da superdosagem de acepromazina em equino com laminite – relato de caso
Authors:   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Gouveia Aline de Jesus , Souza Amabili Pandolfi ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Silva Carla Aparecida Dias da ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Santana Elaine Pereira de ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Costa Ivone dos Santos ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Santos Jomel Francisco dos ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia, Campeiro Junior Luiz Donizete ,   Instituto Federal de Educação, Ciência e Tecnologia de Rondônia
Published: June 2023

Acepromazine is a tranquilizer commonly used in the equine species, producing a sedative effect without hypnosis, in addition, it also acts as a vasodilator, improving laminar perfusion, being used in cases of subacute, acute and chronic laminitis. The objective of this study is to report a case of overdose of acepromazine in a mare, the use of 0.2% acepromazine was indicated, but the owner did not pay attention and administered the 2% concentration, leading the animal to extreme drowsiness and recumbency. Subsequently, after veterinary medical care and specific therapy for the case, the mare recovered from the intoxication and after a few days her laminitis improved.
Design and Analysis of Venturi Microbubble Generator Using Computational Fluid Dynamics
Authors: Thoharudin Thoharudin , Sunardi Sunardi , Yudha Fitroh Anugrah Kusuma , Nadjib Muhammad , Nugroho Arif Setyo
Published: June 2023

The necessity for dissolved oxygen in water is crucial for the survival and growth of aquatic organisms, particularly tilapia. Seventy-five percent of tilapia will die if there is insufficient dissolved oxygen in the water. This work seeks to develop a venturi bubble-generating technique to combat the scarcity of dissolved oxygen in the water. A floating pump with a capacity of 12 m3/hour was selected as the medium for distributing water and generating vacuum pressure to draw in air for mixing with the water flow in the venturi. Ansys Fluent was used to model piping and venturi systems. The piping system was modeled with a single-phase (water) flow at a steady state, whereas the flow in the venturi was modeled with a multiphase (air and water) flow under transient situations. The simulation findings revealed that the pressure drop at the 90-degree elbow was much greater (27.17 kPa) than that at the 45-degree elbow (16.53 kPa). A 1-inch input diameter venturi produced bubbles with an average diameter of 105 µm, whereas a ½ inch venturi bubble generator produced bubbles with an average diameter of 83 µm. Owing to the numerous advantages of adopting a six-outlet piping system with a ½ inch venturi, this design is recommended for floating pumps with a capacity of 12 m3/h.
Study of solar power plants as an aerator driver based on the Internet of Things (IoT)
Authors: Margana Margana , Wahyono Wahyono , Hermawan Baktiyar Mei , W Wiwik Purwati , Suwarti Suwarti , Aulia Nur Fatowil , Solikhin Akhmad Riadzus
Published: June 2023

The use of solar power plants is now developing, for example aerator drives with the Internet of Things. The purpose of designing aerators with the Internet of Things is to utilize programming instructions that each command can generate interaction with fellow devices and connect automatically without user intervention, even remotely. This research method begins with the study of literature, manufacture, installation of components, as an analysis carried out testing and data collection. The results of the tests conducted on day 5 include, the best solar radiation intensity power of 886.786 W/m2, the power produced by solar cells of 473.099 W and aerator power of 75.843 W, solar panel efficiency of 14.749%. and PLTS system efficiency of 4.275%. In this test, it was found that the addition of aeration can increase oxygen concentration and pH value of water.                                 
Keywords- Aerator, PLTS, Performance   
Political Dissidence in Gregori Kozintsev's Gamlet
Authors:   ,   Andrews University, Castillo Alejandra
Published: June 2023

Gregori Kozintsev produced Gamlet (1964) as a film adaptation of Shakespeare's Hamlet during a challenging time for artistic expression in Soviet Russia. Given the threats of censorship, imprisonment, and exile always looming over Soviet writers and artists, Kozintsev's adaptation is in many ways a work of bravery. In Gamlet he utilizes a story of geographically distant persons and places to critique the problems of power in the USSR. Much of this occurs in his depiction of the suffering of Hamet and Ophelia at the hands of paternalistic power, which stands in for political authority. Concerns over authority emerge not just in the film's plot but also in the lives and work of creative participants. For example, Boris Pasternak and Dmitri Shostakovich--contributors for the film's screenplay and score, respectively--are evidence of their individual investment in free artistic expression. Both individuals played a difficult game of creating art that was subtly subversive, simultaneously making public statements of loyalty to the Party. In the film, these subversive elements are especially evident in a portrayal of the relationship between Hamlet and Ophelia to their respective figures of paternal auuthority; the film techniques, language, and music in these scenes demonstrate how Kozintsev uses an officially sanctioned story to convey an unsanctioned message
War Gaming Applications For Achieving Optimum Acquisition Of Future Space
Authors:   ,   Andrews University, Marshall Karel
Published: June 2023

In 2014, the federal government spent nearly half a trillion dollars on contractor projects. The Department of Defense wants to develop an algorithm to optimize the acquisition of new technologies. This project makes us of game theory, probability and statistics, non-linear programming and mathematical models to model negotiations between governmental agencies and private contractors. If focuses on generating the optimum solution and its corresponding acquisition strategy for different contract types. This project culminates in a collection of MATLAB (MathWorks) programs and the newly developed strategy shows strong convergence to Nash equilibrium values and successful selection of optimum solutions.
Investors' Reaction To The Passing Of The Indian Companies Act, 2013
Authors:   ,   Andrews University, Ruhupatty Melisa
Published: June 2023

This research seeks to determine whether mandated corporate social responsibilty (CSR) is value relevant to investors, specifically investors of Indian companies affected by the Companies Act, 2013 which requires companies meeting specific financial criteria to spend 2% of their three-year average net profits towards social initiatives. Recommended social initiatives include the development and implementation of environmentally sustainable businesss practices. Using the event study methodology, this study compares the cumulative abnormal returns (CAR) of companies recognized as CSR-active on the Bombay Stock Exccange (BSE) with those not recognized as CSR-active. Recognized CSR-active companies were determined through the use of the BSE Greenex and Carbonex indices which track firms' sustainability policies, strategies and accomplishments. This research has found that affected companies recognized as CSR-active are impacted significantly less negatively in terms of CAR than other affected companies. This finding suggests that mandating CSR is relvant to investors concerned with CSR involvement, specifically environmental sustainability.
Sihon, Pools, and Disaster: The Memory of Biblical Heshbon
Authors:   ,   Andrews University, Cortez Alvarez Alma
Published: June 2023

Cultural memory is a recent development within biblical studies. Recent research advocates the observance of the biblical text as a basis for the study of cultural memory, in order to engage its historical value. The biblical site of Heshbon in TransJordan serves as a case study to examine how cultural memory interacts with the Bible. In a content analysis design, I engage the biblical cultural memory of Heshbon by evaluating the themes in the text. Based on data collected from the 38 references to Heshbon within 19 passages across the Hebrew Bible, I conclude that the biblical text reflects different narratives and cultural memory emphases for the site of Heshbon.
Identifying the Relationship Between Supplementary Educational Tools and Black Undergraduate Academic Performance
Authors:   ,   Andrews University, Lecointe Joiliana
Published: June 2023

What is the relationship between supplementary educational tools and the success of undergraduate minority students of Black descent at Andrews University? About a third of all students who attend a private, non-profit, four-year college or university do not complete a degree in six years (Digest of Education Statistics, 2017). Andrews University is a Seventh-Day Adventist, private university, and thus is able to provide a greater quality of education as compared to public colleges and universities (Scholarships.com, 2020). This is reflected in higher six-year graduation rates of private universities, as well as higher grade point averages. Unfortunately, minorities, and specifically Black students, yield lower graduation rates and GPAs as compared to their Caucasian counterparts. Black students at Andrews University perform better than the national data, but they still follow this trend (The Chronicle of Higher Education, 2013). The participant pool was Black undergraduate students from various departments and disciplines at Andrews University. Participants completed a survey in which they indicated the degree to which they participate in academic performance-improving actions we called supplementary educational tools. Participants reported that supplementary educational tools, specifically study groups and tutoring, improved academic performance. All supplementary educational tools were helpful in reducing students’ anxiety and improving their understanding. We could not determine if duration and frequency of use were factors in this. Still, these tools were reported as being helpful in improving students’ academic performance, and we should make an effort to implement them systematically across the campus to improve the academic and professional success of Black students.