bluuebunny/crossref_metadata_2025 huggingface dataset:
Surface Treatment of Polyester Fabric with Atmospheric Pressure Plasma
Authors: Yellapragada Srujana
Published: March 2023

Polyethylene Terephthalate (PET) fabric, a recycled synthetic fiber, has been frequently studied to innovate increased usage in both the clothing and medical industry. Some include ways to dye the fabric so that it can be commercially used for the purpose of environmental conservation from frequent discard of nonrecyclable fabric. Some biomedical applications involve the application of plasma treatment to reduce bacteria adhesion and improve anti-bacterial properties on the fabric. However, neither has been successful due to a lack of understanding of the surface modification of PET fabric to enable such properties. The hypothesis is that hydrophobicity is an issue in this study. The goal is to modify the surface of PET cloth to obtain a hydrophilic property through atmospheric-pressure plasma surface modification. Dielectric barrier discharge (DBD) plasma irradiation is a technique involving the electrical discharge between two electrodes separated by an insulating barrier. At a constant peak voltage, the smoothly flowing argon gas is turned into plasma, and the plasma is applied to the PET cloth surface. New functional groups are made or altered and attached to the surface layer which changes the character of the membrane but not its bulk properties. This study analyzes and reports on changes in surface hydrophobicity. This process tested three parameters followed by the water contact angle, XPS, and FTIR analysis. PET fabric successfully gains a hydrophilic property through plasma treatment along with consistency in the results of surface modification from FTIR and XPS. However slight differences in results still do appear which must be further analyzed.
Acute neutrophilic dermatitis in a neutropenic patient – An uncommon presentation of sweet syndrome
Authors: Isaac Sangeetha , Jarrah Joud , Chandrasekar Pranatharthi
Published: March 2023

Sweet syndrome (SS) is an uncommon acute febrile neutrophilic dermatosis. Patients present with acute febrile illness, neutrophilia, and tender skin lesions. It is subclassified into idiopathic, malignancy associated, and drug induced. Occasionally neutrophilia may be absent in patients who are neutropenic secondary to malignancy, drugs, and congenital neutropenia. We describe a 70-year-old gentleman presenting with febrile neutropenia and SS. We have also reviewed the previously described reports of neutropenia and SS form literature.
Will improved neuroradiology facilities debunk the reported rarity of intracranial aneurysms in Sub-Saharan Africa?
Authors: Ohaegbulam Samuel Chukwunonyerem , Ndubuisi Chika Anele , Okwuoma Okwunodulu , Mezue Wilfred , Ajare Enyereibe Chuks , Oti Bibiana , Achebe Sunday , Campbell Francis , Ogolo Donald , Ezeala-Adikaibe Birinus
Published: March 2023

Background:

Intracranial aneurysms (IAN) are rare in the Sub-Saharan Africa unlike other parts of the world. The debate is whether the low frequency might be apparent because of the scarcity of advanced neuroimaging services, or real. This study investigated if improved imaging facilities would debunk the rarity of IAN in our subregion.

Methods:

This is a retrospective cohort study of prospectively recorded data of patients with subarachnoid hemorrhage (SAH) and IAN managed over 19 years (2003–2021), at the study center with a catchment population of over 47 million. The center witnessed progressive improvements in neuroimaging facilities: 2-Slice, 8-slice, and 64-slice computed tomography (CT) and 0.35T, 1.5T magnetic resonance imaging (MRI) during the period.

Results:

There were 241 cases of SAH, but only 166 aneurysms were confirmed in 158 patients. Between 2003 and 2008, only 27 IAN patients (4.5 IAN/year) were diagnosed. After introduction of CT angiography/magnetic resonance angiography MRA using 8-slice CT/0.35T magnetic resonance imaging (MRI), between 2009 and 2014, the frequency of IAN increased to 8/year. Between 2015 and 2018 after installation of a 64-slice CT in 2014, the IAN remained the same (8/year). MRI 1.5T was added in 2018, the frequency doubled to 17 cases/year. The females were more (67.7%), the mean age was 46.3 years, but peak incidence was the sixth decade. Internal carotid artery aneurysms including posterior communicating artery were the most common (43%) followed by ACA with anterior communicating artery (24%) and middle cerebral artery (20%). Multiple aneurysms were seen in ten patients.

Conclusion:

Improved neuroimaging between 2003 and 2021 did not debunk the rarity of IAN in our region.
Transition-Metal-Free and Redox-Neutral Strategy for Sulfilimines Synthesis via S-Arylation of Sulfenamides
Authors: Huang Guoling , Lu Xunbo , Liang Fangpeng
Published: March 2023

In this investigation, an unprecedented transition-metal-free and redox-neutral synthesis of sulfilimines was realized through the S-arylation of readily obtainable sulfenamides employing diaryliodonium salts. The pivotal step encompassed the tautomerization between bivalent nitrogen-centered anions, engendered post-deprotonation of sulfenamides under alkaline conditions, and sulfinimidoyl anions. The experimental outcomes demonstrate that sulfinimidoyl anionic species function as efficacious nucleophilic reagents, affording sulfilimines with notable to exceptional yields and superlative chemoselectivity, all executed within a transition-metal-free protocol and under exceptionally mild conditions.
The build-up approach. Could it be an alternative to the CAPM?
Authors: Gnap Michał
Published: March 2023

Background: The paper contains the economic background for implementing the build-up approach as an alternative method to the Capital Assets Pricing Model (CAPM).

Research purpose: This study aims to consider company-specific risk premium that makes cost estimation unique, subjective, and different within the economic factors that may be considered and used for entity cost of equity estimation, valuation, or other economic metrics.

Methods: The author analyzes the most recent literature on companies’ cost of equity and estimating specific risk premiums. Each component of the cost of capital in the build-up approach was analyzed and interpreted. The petroleum industry was analyzed between 2011 and 2021. The Mercer model for specific risk was used.

Conclusions: The build-up approach seems the best choice to calculate equity costs in a turbulent economic environment. However, due to its mathematical structure, it could be criticized for the huge subjectivity in the assessment risk premium rate. The key to using this method is to make it less subjective. This paper suggests an approach that minimizes the subjectivity in the build-up model. So far, there is no comprehensive analysis of the Polish market that has been prepared from the perspective of the petroleum industry’s specific risk premium. This research creates possibilities for further comprehensive analysis related to models to calculate company risk premiums and the factors that affect them.
Ubezpieczenie jako metoda zarządzania ryzykiem w procesie realizacji inwestycji budowlanej
Authors: Żyła Anna
Published: March 2023

Przedmiot badań: Przedmiotem badań jest ryzyko występujące podczas prowadzenia inwestycji budowlanej oraz rola ubezpieczeń jako sposobu ograniczenia się przed skutkami jego realizacji.

Cel badawczy: Głównymi celami artykułu są: ocena ubezpieczenia jako metody zarządzania ryzykiem przez polskie przedsiębiorstwa, identyfikacja kluczowych ryzyk zagrażających realizacji inwestycji na każdym etapie procesu budowlanego oraz przedstawienie najważniejszych produktów oferowanych przez ubezpieczycieli dla inwestorów i podmiotów z branży budowlanej oraz weryfikacja ich zakresu pod kątem pokrycia ryzyk związanych z przedsięwzięciem budowlanym.

Metoda badawcza: Artykuł powstał na bazie studiów literaturowych, analizy danych statystycznych i dostępnych wyników badań ankietowych, analizy i porównania treści Ogólnych Warunków Ubezpieczenia odnoszących się do produktów dostępnych na polskim rynku ubezpieczeniowym, wzorców umownych udostępnianych przez Zleceniodawców w ramach postępowań przetargowych dotyczących realizacji inwestycji budowlanych, a także w oparciu o własne wieloletnie doświadczenia zawodowe jako osoby pełniącej czynności brokera ubezpieczeniowego, obserwację rynku ubezpieczeniowego oraz zachowań klientów.

Wnioski: W trakcie realizacji badań potwierdzono, że coraz więcej przedsiębiorców jest świadomych rosnącego ryzyka prowadzenia działalności gospodarczej, wdraża politykę zarządzania ryzykiem w swoich firmach, której istotnym elementem jest ubezpieczenie. Udowodniono też, że realizacja inwestycji budowlanej jest procesem złożonym, obarczonym na każdym etapie wysokim ryzykiem jej niepowodzenia o zróżnicowanym charakterze i wymaga od inwestora podjęcia wielu działań mających na celu właściwe zabezpieczenie się na wypadek wystąpienia szkody. Ubezpieczenie stanowi ważny element strategii zarządzania ryzykiem inwestycji budowlanej, szczególnie na etapie projektowania i realizacji prac. W związku z problemami, z jakimi boryka się aktualnie sektor budowlany, należy pamiętać o waloryzacji wartości kontraktów budowlanych i zwiększaniu sum ubezpieczenia, gdyż przy szybko rosnących cenach materiałów budowlanych i robocizny w tym sektorze wiele budów może być obecnie niedoubezpieczonych, co w przypadku szkody będzie skutkować ograniczeniem wypłaty odszkodowania.
Feminist Strategies Against Digital Violence: Embodying and Politicizing the Internet
Authors: Suárez Estrada Marcela
Published: March 2023

This article aims to analyze feminist strategies against digital violence and their relation to performative forms of social justice. Based on new feminist materialisms (Coole & Frost, 2010; Souza, 2019), the article shows how female bodies are at the crossroads in our digital society. On the one hand, they are a target of digital violence because of their political activities, while on the other hand feminist protesters are opening new political possibilities for mobilization. By conducting a digital ethnography with two social collectives located in Mexico City – Luchadoras and Laboratorio de Interconectividades – I argue that embodying and politicizing technologies are strategies to mobilize the body as a political, critical and material category, which reveals a renewed feminist agency in hacking the hegemonic meanings of digital technology and resignifying its materiality in order to politicize it. Furthermore, I argue that based on the body as material category, innovative forms of social justice for feminist collectives emerge. These strategies are related to the critical questioning of technologies to repoliticize digital violence, to render visible the memories and affectations in women’s bodies, as well as to mobilize a new feminist positioning called hackfeminist self-defense. All in all, this article seeks to contribute to understanding the broader issue of feminist politics performing social justice in the digital era.
The Role of Wonder in Students’ Conception of and Learning About Evolution
Authors: Sundberg Bodil , Andersson Magdalena
Published: March 2023

Learning about evolution can be challenging for students, as a full understanding may require them to see the world in new ways, to master a disciplinary language and to understand complex processes. Drawing on a long line of theoretically grounded arguments of philosophers and researchers for including wonder in science teaching, we report on the results of an empirical study with the primary aim of investigating the role of wonder in students’ learning about evolution. The study was carried out through a formative intervention in which two researchers in science education collaborated with a seventh-grade teacher. Over a period of six weeks, 45 students participated in lessons and workshops aimed at eliciting a sense of wonder in relation to concepts that are known to impact the learning of evolution. We incorporated four ‘triggers’ to elicit students’ wonder in the science class: aesthetic experiences, defiance of expectations, agency and awareness of a mystery within the ordinary. Logbook entries and interviews with student pairs provided empirical material for a qualitative analysis of the role of wonder in the students’ meaning-making about, learning of and engagement in evolution. The results show that it is possible to design science teaching that triggers students’ wonder in relation to an intended learning object. The results also reveal that the participating students described their sense of wonder in qualitatively different ways and that they still struggled to make sense of the concept of evolution after six weeks of teaching.
Association Between COVID-19 Vaccination Status With Severity of Confirmed COVID-19 Patients Period of January-July 2022 in Indonesia
Authors: Purwanti Eka Desi , Ronoatmojo Sudarto
Published: March 2023

The COVID-19 vaccine is known to prevent infection, disease severity, and death from COVID-19. The emergence of a new variant of the SARS-CoV-2 would have an impact on the vaccine's effectiveness. This study aims to examine the association between COVID-19 vaccination status and the severity of COVID-19 symptoms during the dominating period of the Omicron variant. This is a cross-sectional study using secondary data from confirmed COVID-19 patients who were reported in the Ministry of Health's Online Hospital System for the period January–July 2022. Using logistic regression analysis, we calculated the adjusted odds ratio (AOR) of the association between vaccination status and the severity of COVID-19 symptoms. A total of 221,673 confirmed COVID-19 patient data were analyzed. The proportion of patients with severe-critical symptoms is 6.25%. Multivariate analysis showed there was a statistically significant association between COVID-19 vaccination status and the severity of COVID-19 disease with an AOR 0.73 (95% CI 0.65-0.82) in the 1st  dose, 0.38 (95% CI 0.35-0.41) at the 2nd dose, and 0.09 (95% CI 0.07-0.11) at the 3rd dose. But the magnitude of the association in the 2nd and 3rd was lower in the age group >60 years, the group with comorbidities, and the male sex group compared to the younger age group, those without comorbidities, and the female group. It can be concluded that COVID-19 vaccination reduces the risk of severity of COVID-19 disease. It can be concluded that COVID-19 vaccination reduces the risk of severity of COVID-19 disease. Government acceleration efforts and public awareness are needed to immediately increase the coverage of the booster dose of vaccination. Further prospective studies are needed to monitor the effectiveness and duration of vaccine protection as other new variants of the SARS-CoV-2 virus emerge.
Book review: Reshaping Food Systems to Improve Nutrition and Health in the Eastern Mediterranean Region
Authors: Ghazi Shamim
Published: March 2023

The book titled “Reshaping Food systems to improve nutrition and health in the eastern Mediterranean Region,” written by Ayoub Al-Jawaldeh and Alexa L. Meyer points out that to make healthy and sustainable diets accessible to all, we need to significantly change current methods of food production and consumption, also in the face of climate change. Therefore, the United Nations have convened a Food Systems Summit in September 2021 to offer a platform for exchange and cooperation between countries and actors in the food system and they are organized into five courses of action that include: 1. Ensure access to safe and nutrition food for all, 2. Shift to sustainable consumption patterns, 3. Boost nature-positive production, 4. Advance equitable livelihoods, 5. Build resilience to vulnerabilities, shocks and stress. The aims of this book are to eliminate malnutrition and food insecurity and increase access to safe food in order to achieve high priorities in the fight against poverty.
Effect of Diet on Depression: A Review of Nutritional Solutions
Authors: Ahmadnia Hananeh , Bahrami Hassan , Mohamadzadeh Soraya
Published: March 2023

Depression is a mental illness with several categories that have common symptoms such as chronic sorrow, lack of interest, lack of pleasure, mood swings between guilt and poor self-esteem, sleep disturbances, and a loss of appetite. Over 300 million individuals globally suffer from depression, and the socioeconomic cost of this debilitating disorder is expected to rise dramatically in the future decades.

Behavioral health illnesses can be prevented and treated to some extent with dietary and nutritional means. Nutritional psychiatry has produced observational and effectiveness evidence regarding the role of healthy dietary patterns in the onset and treatment of depressive symptoms. Diet is associated with depressive symptoms or depression, meaning that an increase in depressive disorders coincide with a deterioration in healthy living choices, including poor quality diets.

Healthy eating habits and adequate intake of essential nutrients via the diet can help prevent and treat depression by reducing symptoms of mental illness. In addition, because nutrition is a modifiable risk factor for depression, it is practical for the public to consider dietary changes to reduce the prevalence of depressive disorders.

This paper reviews the potential value of diet-based actions to manage depression, and ways in which dietary changes could be made to improve mental and cognitive health. Furthermore, some practical solutions for preventing and controlling depression are proposed based on health-related effects of improving dietary habits and life style.
How does the U.S. Government violate the infant formula marketing code?
Authors: Kent George
Published: March 2023

The United States’ Special Supplemental Nutrition Program for Women, Infants, and Children, commonly known as WIC, is based in the United States Department of Agriculture (USDA). It provides services to about half the infants born in the country, with many of them getting subsidized infant formula. WIC manages this in close collaboration with major manufacturers of formula. This commentary examines WIC’s practices in relation to the International Code of Marketing of Breastmilk Substitutes and concludes that the United States is a major violator of the aims and principles of the Code.
First order basis splines to perform isogeometric topology optimization of three dimensional structures
Authors: Chandrasekhar K. N. V. , Bhikshma V.
Published: March 2023

Topology optimization is at the heart of the design process. With the increasing availability of computational power at cheaper prices the research work in this field has been growing steadily in recent years. Isogeometric analysis using basis splines can be very useful to represent the design domain with good precision. The main focus of this research is to use first-order basis spline functions to represent the design domain in three dimensions and to perform topology optimization and to determine the optimal distribution of material. The principal stresses at the centroid of each element are calculated and compared with the permissible stress of the given material. The nodal displacements are computed at each control point and checked with the permissible displacement for the given material. A few problems from the existing work have been solved using isogeometric topology optimization and shown good agreement with the results obtained using Finite Element Analysis (FEA).
An automated examination system for evaluation of descriptive test
Authors: Sekhar CH. , Deekshita P. , M. Srinivasa Rao
Published: March 2023

An Automated examination system for evaluation and descriptive test is an online based examination system in which exams are conducted online. The primary purpose of this Smart Examination system is to build an automated examination system. There is no need of paper and pen. Here students can write exam using internet or intranet. We will mainly use Machine Learning, Natural language processing (NLP) that generates a descriptive test automatically. The main objectives are analyzing sentence and find the semantic meaning of student answer and compare with actual answer defined by instructor and then assigns final scores. Now compare the automated evaluated score with the manual evaluated score with a specific threshold if threshold is deviated then with use of machine learning algorithm can improve the automated evaluation process. It saves lot of valuable time of teachers, reduce work, and complete the evaluation on time.
Colorization of images using soft colour capsule networks
Authors: Swapnapriya Ch. , Josemoses G. , Ramana K. V.
Published: March 2023

Perceiving and interpreting color phenomena is a complex process for the human brain. Obtaining the true color of an object requires different experimental, physical, and theoretical results. By examining image features, color, and other aspects, individuals can study techniques for applying full-color images. In this context, color chemistry has been used in crime investigations to detect the time of death. It can be challenging for police to physically examine decomposed dead bodies, especially if they have been unknown for days, weeks, or even months. This makes the task much harder for law enforcement officials. An innovative approach has been developed to assist the police in investigating cases more efficiently. This approach enables them to solve crimes from the convenience of their offices, thereby enhancing their productivity.
Enhanced gain and compact size microstrip patch antenna by suppressing the surface waves
Authors: Rakesh Kumar , Ram Kumar
Published: March 2023

In this paper, an enhanced gain and compact size microstrip patch antenna by suppressing the surface waves is presented for L band and S band applications. The surface waves are suppressed by using a heterogeneous substrate. A heterogeneous substrate is prepared by removing partially the substrate surrounding the patch. He suggested antenna works for a dual band resonance frequency. The first resonance frequency of the antenna is 1.585 GHz with a return loss of -17. 942 dB and second resonance frequency of the antenna is 2.335 GHz with - 13. 7785 dB return loss. The -10 dB impedance bandwidth of the antenna is 11.9 MHz (1.5809 - 1.55928 GHz) and 44.8 MHz (2.324 - 2.3469 GHz), which is the suitable bandwidth for Global Positioning Systems (GPS), WLAN and satellite communication. Compared to a standard patch antenna the suggested antenna has obtained a high gain of 7.99 dBi with reduced size up to 34% of a defected ground structure (DGS) on a a heterogeneous substrate. Using HFSS, the performance of patch antenna with DGS on a heterogeneous substrate are compared with a homogeneous substrate, a homogeneous substrate with DGS and without DGS on a heterogeneous substrate.
Design of control system for compound heating resistance furnace for optimization of furnace efficiency
Authors: Ranjib K. Chowdhury , Chandra Kumar R.
Published: March 2023

The proposed work examines the performance of control system in a Compound Heating Resistance (CHR) furnace heated, using two different heating elements, Silicon Carbide (SiC) heating rods and Molybdenum Di-Silicide (MoSi ) 2 heating elements for 1600ᴼC working chamber temperature. The system under study consists of Programmable Proportional Integral Derivative (PPID) controller, Thyristor (is also known as Silicon Controlled Rectifier) power pack, recrystallized alumina tubes, sensing elements: thermo-couple, Pt-Pt/13%.Rh, semiconductor based circuit that controls power and current to system according to the requirement (step down) and thereby control voltage automatically with transformer (depending on size of working area, and 53 amp (I), 220 V for single phase, reduced to 60 V by a step down transformer) auto current limiting facilities. Present work is designed for programmable as also for nonprogrammable type of cycles of operations set before starting the furnace within maximum working temperature of 1600ᴼC to achieve objectives, like, saving of amperage (current consumption of 53 amp) and power at reduced voltage (40V), long life of the heating elements (2 years and more) and optimization of thermal efficiency (60%) for high working temperature 1600ᴼC for long hours of operation in a CHR furnace.
The community of learners in an asynchronous online learning environment: an illustrative case study in graduate courses
Authors: Beomkyu Choi
Published: March 2023

Online learning has been growing steadily as an essential instructional mode in most higher education settings. In response to its popularity, many studies have been conducted to provide a better understanding of how learning occurs in this environment. Various frameworks and theories have been adopted to examine learning in this environment. Drawing upon the community of learner model, the present study aimed to expand the understanding of online learning, moving more toward a situative, sociocultural approach to learning from an individualistic, self-regulated approach to learning. This study examined two graduate online courses as cases to illustrate how learning as a collective process of participation in activities work in an asynchronous online learning environment. The findings of this study could help expand and deepen the discourse on how everyone learn in online learning environments, providing a new approach to examining teaching and learning in online learning environments from a more situative, sociocultural perspective.
Convential exergy aspect of heat transfer and fluid flow through spiral passage subjected to consant wall temperature
Authors: Faraj El-Sagier
Published: March 2023

Exergy destruction of heat transfer and turbulent convective fluid flow through spiral passage subjected to constant wall temperature is analyzed. Constant and temperature dependent thermo physical properties models of process fluid have been adopted. Heat transfer characteristics and both thermal as well viscous fluid friction exergy destruction are investigated. The local variation of total (thermal and viscous dissipation) exergy destruction was studied along the spiral passage. Some of second law of thermodynamic dimensionless parameters, such as Bejan (Be) and entropy generation (Ngen) numbers were considered. It is found that De (Dean Number) with its magnitude is a measure of the secondary flow, and has opposite influence on these two numbers along the passage. The study concluded that total exergy destruction was dominated by thermal effects due to temperature difference. But the influence of irreversibility due to pressure drop was found less significant. This effect is of a particular interest in the heat transfer and fluid flow in spiral passages where secondary flow phenomenon plays an important role in thermal mixing and conversion of viscous dissipation into thermal energy through narrowing passage.
Forensic investigation with digital evidence
Authors: Cheekatla Swapna Priya , Jose Moses Gummadi , Kurama Venkata Ramana
Published: March 2023

To establish the time of death, it focuses on the detection and identification of body fluids at the crime scene, which /is a very important forensic model. There are many methods for estimating the time of death, which in medicine is called Livor Mortis. This paper is mainly focused on forensic medicine by determining the approximate time of death by collecting various bodily fluids. There are number of different approaches that affect the post-mortem appearance of the body. Here, as a first step in the investigation, photographs are taken to ascertain the change in skin color after death caused by the accumulation of blood. It has been noticed that skin color is due to predetermined hemoglobin and red chromospheres present in red blood cells called melanin. They are separated and grouped by an outstanding digital technology called 3D Filter Block Similarity Clustering (3-DFBSC), which is a very good approach for the proposed system where clustering is very easy. With these digital methods, cluster analysis plays an important role in the analysis of image matching methods with which it can establish the time of death with these digital methods.
De-centralized cross border payments for global economic status quo
Authors: Asish Dash , Swarupa C. Kulkarni
Published: March 2023

The recent Russia-Ukraine war crisis and the subsequent economic sanctions imposed by the US via a restriction on the SWIFT payment system have highlighted the increased reliance of global economies on a single message service for international trade. This, along with high inflation in the US and falling global economies world-wide and the struggle of the USD to maintain its dominance is bringing about a concept of dedollarisation, where economies are trying to have their reserves in alternate currencies and have global trade in other currencies of choice. This paper discusses about a Globally Backed Stablecoin (GBS) that envelopes the benefits of blockchain and tries to overcome the negatives of Central Bank Digital Currency (CBDC) as an answer to the future of global trade where it becomes difficult to influence its value or usage by few participants and gives better transparency in the global trade. This is another step to ensure that economies are not held hostage by sanctions or threats and unlike the US Dollar or SWIFT systems, payment systems cannot be used as a weapon for economic wars.
Selection of best scooter model using the fuzzy- AHP MCDM methodology
Authors: Debojit Roy , Soupayan Mitra
Published: March 2023

The Multi-Criteria Decision Making (MCDM) is a new and advanced managerial tool for evaluating the best solution at the optimal level. The main purpose of the MCDM tool is to solve complex decision problems where the decision-makers are experiencing lots of conflicts. The decisions are to be made based on the criteria and their relative importance. If the decision that has to be taken have financial and resource involvement, the decision has to be taken very attentively. Selecting the best-suited scooter also involves many complex aspects like design and ergonomics, power output, fuel economy, price, and many other aspects. The objectives of this particular work are to find the best scooter model among four selective alternatives and to study and evaluate various MCDM tools like the Fuzzy-AHP methods, which are vigorously used in solving different complex decision or selection problems based on criteria associated with this problem.
Exergoeconomic analysis and parametric investigation of a gas turbine power plant
Authors: Malik F. Elmzughi , Elhadi I. Dekam , Ali G. Almuzwghi , Khaled Seddig
Published: March 2023

Thermoeconomic models, combining the concept of cost in economics and the concept of exergy in thermodynamics, provide the ability to optimize complex power generation systems to achieve the best balance between thermodynamic efficiency and economic cost. In this paper, a parametric analysis was carried out based on the method of calculating the unit exergy cost, as well as exergo-economic studies and cost sensitivity studies on the exergy of the cycle of a gas turbine power plant. The mathematical models of mass, energy, effort, and economy were created and presented. Thermodynamic properties and research analysis are performed using the MINI- REFerence fluid PROPerties (MINI-REFPROP) and matrix laboratory (MATLAB) SIMULINK software packages. The analysis leads to valuable benchmarks of the economic situation. The exergo-economic coefficient, the total cost of exergy loss, exergy destruction for the combustion chamber, and labor productivity are determined. When conducting parametric studies, the influence of the temperature at the inlet to the gas turbine, the temperature at the inlet to the air compressor, and the degree of pressure increase in the compressor were taken into account. The combustion chamber at the plant was found to have the highest energy destruction rate of 80%, indicating that boilers need to be given more attention in terms of design, selection, operation, and maintenance. However, in percentage terms, the combustion chamber has a high improvement potential of 94%. Sensitivity and parametric analysis show that while the exergy factor, the total cost of exergy loss, exergy destruction for the combustion chamber, and power output fall with increasing air compressor inlet temperature, it can be increased with increasing compressor pressure ratio. The total energy loss cost, combustor energy loss, and power output decrease as the gas turbine inlet temperature rises, while the cycle network and overall exergy destruction rate increase. The rates of the exergy destruction of the Venture Capital (VC), the combustion chamber of the combustion chamber, and the total exergy destruction are 25.2, 122.3, and 153.2 MW, respectively, for the proposed conditions. In addition, the results showed that it was $2,272 per hour, while the cost of work performed in energy terms is $1,769 per hour with a fuel cost of $0.003 per MJ. A valuable achievement is the availability of defined values and clear parametric influences, which can be of great help to engineers and site operators in the efficient execution of unique tasks, playing with the conflicts of energy use, exergy, and cost.
Pathfinding visualizer
Authors: Ananya Maurya , Aayushi Yadav , Ashish Baiswar
Published: March 2023

Visualizations of algorithms contribute to improving computer science education. The process of teaching and learning of algorithms is sometimes, complex and hard to understand problem. Visualization is a useful technique for learning and analyzing any algorithm easily. Pathfinding refers to computing an optimal route between the specified start and goal nodes. It is an important research topic in the area of Artificial Intelligence with applications in fields such as GPS, Real-Time Strategy Games, Robotics, logistics while implemented in static or dynamic or real-world scenarios. Recent developments in pathfinding lead to more improved, accurate and faster methods and still captivates the researcher's attention for further improvement and developing new methods as more complex problems arise or being developed in AI. A great deal of research work is done in pathfinding for generating new algorithms that are fast and provide optimal path since the publication of the Dijkstra algorithm in 1959.
An Adaptive Richardson-Lucy Algorithm for Medical Image Restoration
Authors: Yaqoub Qunoot A. , Al-Ani Ayad A.
Published: March 2023

Image restoration is the process of estimating the original image content from a degraded picture. In this paper, the Richardson-Lucy iterative algorithm was developed to improve the quality of degraded medical images. It has been assumed that medical images are exposed to two types of degradation. The first type is the blur function in the Gaussian form with different widths, i.e. σ = 1 , 2, and 3. The second type of degradation was assumed to be of the independent white Gaussian noise type with different signal-to-noise ratio values: SNR = 10, 50 , and 100. The results obtained from the adaptive filter are compared, quantitatively, with different conventional filters: inverse, Wiener, and constraint least square, by applying different measures, such as: power signal to noise ratio (PSNR), structural similarity index (SSID), and root mean square error (RMSE). The comparison showed that the adaptive recovery filter achieves better results.
Impacts of the COVID-19 pandemic on the reality of Brazilian prisons
Authors: Oliveira Hilderline Câmara de , Freita Pedro Ramayana
Published: March 2023

Introduction: Since 2020, the world has been suffering the impacts of the new coronavirus, which has assumed the proportions of a global pandemic, a reality that also affects people deprived of liberty and public servants, who work within prison units in Brazil. Objective: To investigate and analyze the impacts and numbers of cases of covid-19 that affected the population deprived of liberty and civil servants in the reality of Brazilian prisons. Design: This research is exploratory and bibliographic in nature, using public domain data, authors and Brazilian legislation. Also, the time lapse of the data reflected here is until April 2021. Results: Information and notifications of cases of covid-19, which affect Brazilian prisons, are not widely publicized and do not follow the update as other segments of the population. In addition, some measures were taken by governments, including the suspension of visits, the purchase of hygiene kits, such as alcohol gel and others. Implications: In this scenario, there was evidence of the indifference and negligence of governments with people deprived of liberty, who do not have their rights enforced in most prisons in the country.
ИССЛЕДОВАНИЕ СОЦИАЛЬНО-ЭКОНОМИЧЕСКОГО ПОВЕДЕНИЯ СТУДЕНТОВ
Authors: Нифантьева Анна Викторовна , Тимербулатова Алена Александровна
Published: March 2023

Природный потенциал человека, состояние социально-экономической жизни общества, личный интерес индивида являются главными факторами социально-экономического поведения и трудовой деятельности личности. Несмотря на то, что студенчество в современных условиях является обширной социальной группой, его экономические и социальные характеристики, в частности социально-экономическое поведение, остаются малоизученными, что и обусловило актуальность данного исследования.
РАЗВИТИЕ ФИНАНСОВОЙ СИСТЕМЫ 2022 ГОДА
Authors: Зяблицкая Наталья Викторовна , Манина Екатерина Анатольевна , Петровец Арина Станиславовна , Жиляева Татьяна Алексеевна
Published: March 2023

В данной статье рассматриваются и анализируются дальнейшие перспективы и направления развития нашей страны. Решение современных экономических проблем экономического развития в России в условиях санкций определяет необходимость формирования финансовой системы, которая должна создавать предпосылки для нормально развивающейся экономики, что актуализирует разработку проблемы уровня финансового развития, влияющего на экономический рост. В ходе написания статьи были обобщены результаты теоретических и эмпирических исследований роли финансовой системы в экономике страны. В результате анализа были сделаны многочисленные выводы, а также мы получили результаты о дальнейшем развитии финансовой системы под влиянием различных факторов. Кроме того, рассмотрены и проанализированы сегодняшние санкционные давления, и мы провели анализ, как они влияют на современную финансовую систему. Полученные выводы в нашей статье позволили выяснить актуальные проблемы и приоритеты развития страны, определить дальнейшую стратегию развития.
УРОВНИ ЗРЕЛОСТИ УПРАВЛЕНИЯ ПРАКТИКАМИ ИНИЦИАТИВНОГО БЮДЖЕТИРОВАНИЯ: ТЕОРИЯ И АПРОБАЦИЯ
Authors: Котов Дмитрий Валерьевич , Качалкина Кристина Геннадиевна , Куликов Александр Владимирович
Published: March 2023

В статье раскрываются и обобщаются результаты исследований авторов в области жизненного цикла практик инициативного бюджетирования и модели уровней зрелости управления практиками. Приведен экскурс в историю становления инициативного бюджетирования в России, показано, как разные практики развивались и трансформировались. Выявлены те практики, реализация которых сопровождалась рядом проблем. Показано, какие существуют теоретические основания для совершенствования управления практиками инициативного бюджетирования, приведены основы модели уровней зрелости управления практиками. Авторы провели апробацию методических разработок на массивах данных о реализации четырех практик инициативного бюджетирования, реализуемых в Республике Башкортостан, Республике Коми и Удмуртской Республике. В итоге выведены оценки уровней зрелости управления по исследованным практикам, даны рекомендации по улучшению управления ими, а также показана сходимость теоретических и методических предположений и разработок с практическими выводами.
СТРАТЕГИЧЕСКИЕ ОРИЕНТИРЫ КОМПЛЕКСНОГО РАЗВИТИЯ ПРОИЗВОДСТВЕННО-ОТРАСЛЕВОЙ ИНФРАСТРУКТУРЫ ПРОБЛЕМНЫХ РЕГИОНОВ ЮГА РОССИИ
Authors: Гасанов Магомед Алиевич
Published: March 2023

Цель работы. В научной статье рассматриваются актуальные проблемы комплексного развития производственно-отраслевой инфраструктуры проблемных регионов юга России. При этом целью исследования является определить научно-стратегические направления подотраслей экономической инфраструктуры в условиях оптимизационного анализа, а также разработать проект программы системного формирования проблемных регионов юга России. Метод или методология проведения работы. Методология проведения исследования заключается в комплексном анализе развития составляющих отраслей региона в условиях интенсификации экономики совершенствования системы управления. Основой исследования являются фундаментальные научные труды отечественных и зарубежных учёных в области экономики производственной составляющей инфраструктуры проблемных регионов юга России. В ходе исследования использованы методы научного познания: системный анализ, сравнение и экономико-статистические методы. Результаты. Теоретические и научно-практические результаты исследования автора позволят использовать комплексный подход развития составляющих экономики инфраструктуры региона, а также формирования территориально-интегрирующих подсистем проблемных субъектов юга России. Область применения результатов. Полученные результаты проведенного исследования могут быть применены при формировании проекта социально-экономического развития кластеров инфраструктуры региона, а также стратегического прогнозировании видов производственной инфраструктуры РФ и её субъектов. Выводы. По результатам проведенного исследования сделан вывод, практическое использование авторской концепции будет способствовать: повышению эффективности комплексного функционирования предприятий отрасли, сбалансированному развитию составляющих производственно-отраслевой инфраструктуры страны и ее регионов в условиях современных глобализации.
ОСНОВНЫЕ ТРЕНДЫ УСОВЕРШЕНСТВОВАНИЯ ПРОФЕССИОНАЛЬНЫХ КОМПЕТЕНЦИЙ СЕЛЬСКОХОЗЯЙСТВЕННЫХ РАБОТНИКОВ В УСЛОВИЯХ СУЩЕСТВУЮЩИХ И БУДУЩИХ ВЫЗОВОВ
Authors: Бочарова Елена Викторовна
Published: March 2023

В данной статье рассматриваются ведущие тренды в процессе формирования и совершенствования профессиональных навыков сельскохозяйственных работников в ситуации действующих и будущих вызовов. Можно выделить следующие основные тренды в сфере профессионального развития: усложнение профессиональных навыков у ведущих специалистов; обучение смежным компетенциям; освоение российских информационных разработок в сфере сельского хозяйства; обучения непосредственно на рабочем месте; самостоятельность и автономность. Методической основой исследования является база данных Комплексного наблюдения условий жизни населения, проведенного Федеральной службой государственной статистики (Росстат). Выборка ограничена квалифицированными и неквалифицированными сотрудниками предприятий сельскохозяйственной отрасли, которые постоянно проживают в сельской местности нашей страны. В результате проведенного исследования сделан вывод о том, что основные тренды, которые оказывают влияние на развитие профессиональных компетенций работников сельского хозяйства, – это актуальные в данный период времени изменения навыков и способов осуществления трудовой деятельности работников в условиях перемен внешней среды.
E-MODUL INTERAKTIF BERBASIS NATURE OF SCIENCE (NOS) PERKEMBAGAN TEORI ATOM UNTUK MENINGKATKAN LEVEL KOGNITIF LITERASI SAINS PESERTA DIDIK
Authors: Wardhana Singgih Oka , Nabilah Shabrina , Dewitasari Annisa Putria , Hidayah Rusly
Published: March 2023

Pada abad ke-21 pendidikan berorientasi sains wajib menekankan literasi sains. Penelitian ini menyajikan hasil dari e-modul elektronik berbasis nature of science (NoS) yang telah dikembangkan berdasar validitas, kepraktisan, dan keefektifan. Penelitian ini menggunakan metode pengembangan 4D yang meliputi tahap Define, Design, Develop, dan Disseminate. Metode ini telah disesuaikan dengan tujuan penelitian sehingga hanya sampai tahap Develop. Hasil validitas e-modul yang dikembangkan pada setiap komponennya, sseperti: isi, literasi saisn, NoS, Bahasa, dan penyajian mendapatkan kategori sangat valid. Hasil dari kepraktisan pada setaip komponenya, seperti: isi, literasi sains, NoS, motivasi, dan penyajian mendapatkan kategori sangat praktis. Hasil keefektifan didapatkan dari soal tes literasi yang digunakan untuk menguji pengetahuan kognitif peserta didik dengan nilai N-gain yang bervariasi yaitu 0,7; 0,7; dan 0,8 dengan kategori tinggi. Hasil tersebut memperlihatkan bahwa e-modul interaktif berbasis nature of science (NoS) dapat meningkatkan level kognitif literasi sains peserta didik.
Element-based ecological and human health risk assessment in a lagoon system in a densely populated basin
Authors: Aykir Dilek , Fural Şakir , Kükrer Serkan , Mutlu Yunus Emre
Published: March 2023

This study analysed the ecological deterioration and health risk in sediment samples taken from Dalyan and Poyraz Lagoons in the Karacabey floodplain of Turkey, which is under pressure from agriculture, industry and settlement activities. Multi-element analyses were performed with ICP-MS on the surface and core sediment samples from the lagoons. Total organic carbon, chlorophyll degradation products and carbonate analyses were performed to determine the transport and illuviation dynamics of the elements. While Pb and Zn showed moderate enrichment at some sampling points, no enrichment of the other elements was detected. According to ecological risk analysis data, Cd and Hg posed a moderate ecological risk at some sampling points. The modified hazard quotient data indicated very high contamination of Ni, a high level of As contamination and significant Cr contamination. A carcinogenic health risk was detected from Ni, Cr and As due to the lithological characteristics of the basin. It was concluded that the lithological characteristics, the agricultural and mining activities carried out in the Susurluk Basin – which is drained by Koca Stream – and domestic and industrial waste contributed to the higher element concentrations in the Karacabey floodplain.
Morphometric variation of Spicara flexuosum Rafinesque, 1810 (Teleostei: Sparidae) inhabiting the Sea of Marmara, the Aegean and the Mediterranean Coast of Türkiye
Authors: Şalcıoğlu Asli
Published: March 2023

In the present study, intraspecific morphometric distribution of Spicara flexuosum was investigated along the five locations on the Turkish coast based on eight morphological characters. A total of 116 samples were obtained along the Turkish coasts (Istanbul, Yalova [Armutlu], Izmir, Mersin and Antalya) by using trawlers and the handline fishing method within the period in 2014–2015. Principal component analysis and the dendrogram-based Euclidean distance method were used to evaluate different morphometric traits among five locations. The most important ratios of the morphometric loading characters were the head length to interorbital distance, head length to eye diameter, maximum body height two to head height, and head height to head length. The classification matrix based on the discriminant function analysis showed that 94.7% of original grouped were correctly classified. Principal component and cluster analysis showed the existence of two morphologically differentiated groups of S. flexuosum. First one composed of Istanbul and Yalova and the second one consisted of Izmir, Mersin and Antalya. This study is the first description of the intraspecific distribution of morphometric characters for S. flexuosum along the Turkish coast as well as the Mediterranean region for fisheries management purposes.