bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation of Porous Carbon Materials as Adsorbent Materials from Phosphorus-Doped Watermelon Rind
Authors: Wei Yumeng , Li Penghui , Yang Chi , Li Xiaoyu , Yi Dairenjie , Wu Wenjuan
Published: June 2023

In this study, phosphorus-doped watermelon rind carbon material (WC-M) was prepared by a muffle furnace, and the adsorption performance of WC-M material to dyes was investigated. At the same time, the effects of dye concentration, pH, adsorption time, adsorption temperature, and other factors on the adsorption effect were investigated. In the experiment, a muffle furnace was used to carbonize the watermelon rind doped with phosphoric acid, which simplified the experimental operation. Regarding the results of SEM analysis, the surface structure of WC-M materials is diverse. Isothermal maps of nitrogen adsorption and desorption show that the material contains more microporous structures and exhibits more active sites. The experimental results show that WC-M materials show good adsorption properties against cationic dyes (malachite green, MG) and anionic dyes (active black, AB). The neutral condition is conducive to the adsorption of MG, and the alkaline condition is conducive to the adsorption of AB. The adsorption rate reaches a maximum in the initial stage of adsorption, the adsorption capacity reaches 50% of the total adsorption capacity within 10 minutes before the reaction, and then the adsorption capacity gradually decreases until the adsorption equilibrium. The adsorption mechanism was explored by the pseudo-first-order kinetic model, second-order kinetic model, and intraparticle diffusion model. At the same time, through the analysis of multiple isotherm models, the overall adsorption process followed the Langmuir isotherm model, the adsorption of MG was more inclined to monolayer electron adsorption, and the adsorption capacity reached 182.68 mg⋅g−1. The reusability of WC-M materials in MG and AB adsorption was discussed. At this time, the concentrations of AB and MG were 120 mg⋅L−1 and 150 mg⋅L−1, and after 10 h of desorption, the desorption rates of MG and AB reached 67.7% and 83.3%, respectively; after five adsorption–desorption cycles, the adsorption rate of MG was still 78.5%, indicating that WC-M materials have good recovery effect. At the same time, the use of watermelon rind as an adsorption material belongs to the high-value application of watermelon rind, which belongs to “turning waste into treasure” and will not pose a certain threat to the environment. This experiment is also suitable for durian rind, pineapple rind, and other “waste” biomass materials, and the experiment has certain generalizations.
Chemical and Ecotoxicological Assessment of Agricultural Drainage Water from a Maize Crop Area: A Case Study in the Tejo Basin (Portugal)
Authors: Palma Patrícia , Catarino Adriana , Silva Emília , Alvarenga Paula
Published: June 2023

The use of agricultural drainage water (ADW) in irrigation is a great challenge, improving water use efficiency, nutrient circularity, and avoiding surface and ground-water contamination. The objective of this study was to evaluate the chemical and ecotoxicological characteristics of an ADW to analyze the safety of its reuse. An irrigated area with maize crops was selected (Tejo Basin, Portugal), where a subsurface structure for the recovery of ADW was installed, collecting the drainage in a pond and recycling it for crop irrigation. Water was collected monthly during the irrigation campaign of 2021 (April to August). Three herbicides and two metabolites were quantified, reaching a maximum concentration of 0.74 µg L−1 for S-metolachlor and 0.48 µg L−1 for terbuthylazine. The lethal bioassays did not detect toxicity, except for the sample collected in August toward Vibrio fisheri (EC50 = 25.2%). The samples were not toxic to Pseudokirchneriella subcapitata, with a growth inhibition rate of less than 10%. The low lethal and sublethal effects may be ascribed to the high nutrient concentration (e.g., 1.76 mg P L−1 and 98.9 mg NO3− L−1, in July) that could have masked toxic effects. Ecotoxicological responses support the option of ADW reuse in irrigation, offering a safe and sustainable solution for water and nutrient management.
H–H Configuration of Modular EV Powertrain System Based on the Dual Three-Phase BLDC Motor and Battery-Supercapacitor Power Supply System
Authors: Shchur Ihor , Turkovskyi Valentyn
Published: June 2023

A modular approach to the construction of electric machines, drive systems, power supply systems is a new direction of modern technology development. Especially, the modular approach is promising for electric vehicles due to such positive aspects as increased efficiency, fault tolerance, overall reliability, safety, enhanced control capabilities, etc. In this work, the modular approach is comprehensively applied to an EV powertrain system, which includes a dual three-phase (DTP) BLDC motor with two machine modules of an asymmetric configuration, two battery modules and a supercapacitor module (SCM). The proposed H–H configuration of modular EV powertrain system includes four voltage source inverters that combine the power modules with the open ends of the windings (OEW) of the module machine armature, and provide control of their operation. Based on the developed mode system of the OEW machine module operation for EV traction and braking, a general control algorithm for the proposed configuration of the modular EV powertrain system has been developed. It combines the control of the operating modes with the functions of maintaining the required SOC level of the SCM and equalizing the SOCs of the two battery modules. The conducted simulation and experimental studies confirmed the workability and effectiveness of the proposed solutions.
Image Processing Techniques based Feature Extraction for Insect Damage Areas
Authors: ALKAN Ece , AYDIN Abdurrahim
Published: June 2023

Monitoring of forests is important for the diagnosis of insect damage to vegetation. Detection and monitoring of damaged areas facilitates the control of pests for practitioners. For this purpose, Unmanned Aerial Vehicles (UAVs) have been recently used to detect damaged areas. In order to distinguish damage areas from healthy areas on UAV images, it is necessary to extract the feature parameters of the images. Therefore, feature extraction is an important step in Computer Aided Diagnosis of insect damage monitored with UAV images. By reducing the size of the UAV image data, it is possible to distinguish between damaged and healthy areas from the extracted features. The accuracy of the classification algorithm depends on the segmentation method and the extracted features. The Grey-Level Co-occurrence Matrix (GLCM) characterizes areas texture based on the number of pixel pairs with specific intensity values arranged in specific spatial relationships. In this paper, texture characteristics of insect damage areas were extracted from UAV images using with GLCM. The 3000*4000 resolution UAV images containing damaged and healthy larch trees were analyzed using Definiens Developer (e-Cognition software) for multiresolution segmentation to detect the damaged areas. In this analysis, scale parameters were applied as 500, shape 0.1, color 0.9 and compactness 0.5. As a result of segmentation, GLCM homogeneity, GLCM contrast and GLCM entropy texture parameters were calculated for each segment. When calculating the texturing parameters, neighborhoods in different angular directions (0,45,90,135) are taken into account. As a result of the calculations made by considering all directions, it was found that GLCM homogeneity values ranged between 0.08 - 0.2, GLCM contrast values ranged between 82.86 - 303.58 and GLCM entropy values ranged between 7.81 - 8.51. On the other hand, GLCM homogeneity for healthy areas varies between 0.05 - 0.08, GLCM contrast between 441.70 - 888.80 and GLCM entropy between 8.93 - 9.40. The study demonstrated that GLCM technique can be a reliable method to detection of insect damage areas from UAV imagery.
Improvement of education economic management and implementation of state information systems
Authors:   Russian Academy of Personnel Support of the Agro-Industrial Complex, Moscow, Uvarov A. V.
Published: June 2023

Education economic is one of the dynamically developing and least methodologically established sections of native economic thought. The purpose of this article is to conduct a critical analysis of current mechanisms, problems and trends in the implementation of state information systems (SIS) in national education. The author pays special attention to the role of SIS in the formation and improvement of state educational policy, which is of particular importance in the context of turning of educational sovereignty to the politics. At the same time, the author emphasizes that in the context of the modern information-oriented society, the relevance of state information systems capable of ensuring effective economic management is becoming more and more important. The article offers a detailed analysis of the economic, legal and management frameworks for the functioning of information systems in the education sector on the basis of statutes in place. The concept of a state information system is studied and its main elements and functions are discussed. In addition, the article shows the differences between analog and digital methods of state policy, emphasizing the advantages of the latter. In conclusion basic principles of implementation and operation of state information systems in various economic sectors, including education, are proposed. Guided by these principles, the government will be able to maximize the effectiveness of the use of such systems in state policy, especially in the context of education, ensuring more accurate planning, analysis and decision-making based on relevant data and information.
DESAIN PROJECT BASED LEARNING TERINTEGRASI STEMM UNTUK MENINGKATKAN KEMAMPUAN BERWIRAUSAHA SISWA
Authors: Supiase Made , Riswandi Riswandi , Sunyono Sunyono
Published: June 2023

This research aims to analyze the potential and conditions, characteristics, applicability, attractiveness, student activities, and the effectiveness of using the STEM Integrated Project Based Learning Design in the Ruminant Agribusiness Skills Competency of Ruminant Animals to improve the entrepreneurship skills of students at the Integrated Excellent State Vocational School for the 2021/2022 academic year. Data collection techniques with questionnaires and observation. The product results are in the form of STEM Integrated Project Based Learning design development complemented by Syntax, Syllabus, RPP and LKPD. Material expert validation results for the feasibility of STEM integrated project based learning design obtained 96% results (appropriate to use), media/design expert validation results obtained an average result of 93.5% (feasible to use), linguist validation test results obtained average results -average 92.5% (fit for use). Product testing on design implementation is 92% (can be used) and students' responses to design attractiveness are 100% (interesting). The average N-Gain Score results show that the STEM-integrated Project Based Learning Design is effective for improving students' entrepreneurship skills in the ruminant livestock agribusiness expertise competency at Integrated Excellent State Vocational School.
INTERNATIONAL COORDINATION OF MACROPRUDENTIAL POLICY AS A TOOL OF FINANCIAL INTEGRATION
Authors:   Borys Grinchenko Kyiv University, Shlapak А.V.
Published: June 2023

The article provides a comprehensive analysis of the problem of international macroprudential regulation from the standpoint of benefits and threats produced for national economies in the process of its implementation. It has been established that the macroeconomic situation in each individual country is increasingly being influenced by forces that go beyond both traditional cycle theories and the conventional understanding of non-economic factors. As a result, long-term macroeconomic stability, the key to which is the stability of the national financial and, above all, the banking system, to external shocks, is called into question, and the main way to ensure it is to conduct a risk-weighted macroprudential policy. Capital inflows driven by changes in financial regulations in the country of origin of capital could lead to excessive credit growth and asset price pressures in capital recipient countries, which could be partly mitigated by regulatory and macroeconomic policies in those countries. Conversely, effective domestic macroprudential policies that help contain systemic risks in one country can contribute to financial stability in other countries by generating positive externalities. Reducing the likelihood of a financial crisis in one country through timely macroprudential policies can reduce the scale of negative trade and financial spillovers or spillovers at the regional or international level. Based on the assumption that, when policymaking is inconsistent, each country's regulator is free to choose policy instruments to minimize its own political losses or maximize public welfare, assuming that regulators in other countries can make similar arbitrary choices of macroprudential instruments as a given, it has been found that such policy, generally does not take full account of cross-border spillovers, that is, the real and financial externalities caused by domestic shocks, or the consequences of national policy responses to those shocks. The article determines that, theoretically, international coordination of macroprudential policies can achieve a reduction in political losses or contribute to an increase in public welfare. Both domestic macroprudential policies and prudential capital controls produce spillover effects internationally, which can lead to “capital wars” based on races to lower interest rates. Keywords: macroprudential policy, international economic policy, international capital flows, financial integration, international policy coordination, global instability, regulatory wars.
DISPOSITION OF THE KNOWLEDGE ECONOMY IN THE SYSTEM OF GLOBAL SCIENTIFIC AND TECHNOLOGICAL TRANSFORMATIONS
Authors:   Mariupol State University, Podunai V.
Published: June 2023

The article is devoted to the definition and justification of the knowledge economy disposition in the system of global scientific and technological transformations. The work examines the evolution of scientists' views on the concepts of "knowledge" and "knowledge economy". The role of information and knowledge as a resource in the post-industrial economy is defined. Characteristic features of a new society based on knowledge are presented, the main of which is the intensive use of knowledge for production activities. The theoretical basis of the transformations of developed economic systems at the modern stage has been analysed and systematized. The technological levers of global transformations of society are determined. The author includes to these levels following: knowledge, innovations, technologies, changes in technological systems, scientific and technical revolutions. The structure of technological transformations is presented. It was concluded that scientific and technological transformations serve as a starting point for the formation and deployment of technological cycles of different durations. They are inextricably interconnected with economic cycles, forming a single system of progress of society, its movement from degree to degree. On the basis of the performed analysis, the author determined the disposition of the knowledge economy in the system of global scientific and technological transformations and proposed a visualization of the given disposition. Keywords: technologies, information, knowledge, knowledge economy, scientific and technological transformations.
Relationship between serum vaspin levels and the severity of coronary disease in non-diabetic patients with non-ST elevation myocardial infarction
Authors: BALI Jihat , KARABULUT Umut , BÜYÜK Ahmet , ÇELİKER Cengiz
Published: June 2023

Objectives: Vaspin is an adipocytokine, serine protease inhibitor, correlated to obesity, insülin sensitivity, diabetes mellitus, and coronary artery disease. The association between vaspin and coronary artery disease was shown in several studies. Whether this value is independent of diabetes in coronary artery disease patients is not known. Also, a study that shows the importance of vaspin in patients with Non-ST elevation myocardial infarction (NONSTEMI) is not conducted. This study aimed to investigate the relationship between serum vaspin levels and the severity of coronary artery disease, which is determined by the SYNTAX score, in nondiabetic patients with NONSTEMI

Materials and Methods: A total of 165 nondiabetic patients with NONSTEMI were included in this cross-sectional study. Serum vaspin levels were measured by the ELISA method.SYNTAX scores were evaluated by two expert operators blinded to the angiography results. Patients were divided into three groups according to the SYNTAX score by the interquartile range method (group 1 with SS 22).

Results: Serum vaspin levels were found significantly different between three groups (p = 0,03) and significantly higher in group 1 than group 3 (p = 0,01).No significant difference was found between group 1 and 2 also group 2 and 3 (p = 0, 52, p = 0.06 ).It was found to be a significant but weak negative correlation between the SYNTAX score and serum vaspin levels (r = -0,207, p = 0.008).

Conclusion: Vaspin negatively correlates to SYNTAX score and maybe a useful marker to show the severity of coronary disease in nondiabetic patients with NONSTEMI
Amiloidose pulmonar secundária a síndrome de sjögren: relato de caso
Authors: Silva Alda Luiza Alves , Silva Ana Cristina Capanema , Fonseca Gabriel Oliveira , Oliveira Gláucia Monteiro , Campana Juliana Caetano , Maciel Rafaela Rabelo
Published: June 2023

A síndrome de Sjögren (SS) é uma doença inflamatória autoimune linfoproliferativa que acomete principalmente as glândulas salivares e lacrimais. Essa patologia que pode ter múltiplas apresentações, sendo a manifestação pulmonar a mais comum. A amiloidose, por sua vez, caracteriza-se pelo depósito patológico de proteínas em diferentes órgãos e tecidos. Essa patologia pode se apresentar de forma sistêmica ou localizada, ambas capazes de gerar comprometimento pulmonar. A amiloidose pulmonar secundária à SS é muito rara, sendo este, o relato de caso apresentado. Trata-se de um paciente masculino, 43 anos, internado para investigação de um quadro pneumonias de repetição. Durante a propedêutica solicitaram-se Tomografia de Tórax (TC) e exames reumatológicos. Diante as alterações encontradas nesses exames, foi-se necessária a realização de biópsia pulmonar e de glândula salivar, que confirmaram o diagnóstico de Amiloidose pulmonar secundária à Síndrome de Sjögren. A partir disso, o paciente manteve acompanhamento para controle da progressão das doenças em questão.
PERAMALAN KASUS HARIAN MONKEYPOX DUNIA BERDASARKAN METODE SUPPORT VECTOR REGRESSION (SVR)
Authors: Subiyanto Marcel Laverda , Amanda Yulia , Fachrian Muhammad Nadhil , Afriani  , Rohim Achmad Yazid Busthomi , Chamidah Nur
Published: June 2023

Monkeypox saat ini menjadi perhatian masyarakat global. Maka, penting untuk mengetahui perkembangan jumlah kasus monkeypox kedepannya. Pada penelitian ini dilakukan peramalan kasus harian monkeypox menggunakan metode Support Vector Regression (SVR) dengan Fungsi Kernel Radial Basis Function (RBF). Data yang digunakan adalah data sekunder berupa deret waktu harian mulai 29 Mei sampai 20 Oktober 2022. Untuk memperoleh parameter optimal pada model SVR, peneliti menggunakan algoritma grid search untuk memprediksi data testing secara akurat.  Nilai RMSE pada data training dan testing sebesar 352,3 dan 809,7.
Blue Collar Personnel Selection for A Manufacturing Company with Fuzzy COPRAS Method Based on Fuzzy PIPRECIA
Authors: YENİLMEZEL Simge , ERTUĞRUL İrfan
Published: June 2023

Today, the rapid increase in the competitive environment has made it a complex and strategic decision for companies to select the most suitable candidate for personnel recruitment. For this reason, using Multi-Criteria Decision Making (MCDM) methods in this decision problem will provide a quick result. Due to the uncertainty of the criteria, fuzzy PIPRECIA and fuzzy COPRAS methods, which are fuzzy MCDM methods, were used together in the study in order to achieve more effective results. For the evaluation of the criteria and alternatives, three decision makers consisting of HR manager, production manager and shift supervisor were identified. The weights of the six criteria created by utilizing the three decision makers and the literature were calculated with the fuzzy PIPRECIA method and five alternatives were ranked with the fuzzy COPRAS method. Candidates were interviewed through online interviews, which is a common practice today. The most important criterion was K5 (professional competence) and the best alternative was A3. The methods used are unique to the study as they are rarely used together in the literature and have never been used in personnel selection.
Influencing factors for Sleep Disturbance in the Intensive Care Unit Patients: A Systematic Review
Authors: Cho Young Shin , Joung Sunae
Published: June 2023

Purpose : Sleep disturbances in patients in the intensive care unit (ICU) are related to health problems after discharge. Therefore, active prevention and management are required. Hence, identification of the factors that affect sleep in patients who are critically ill is necessary.Methods : The PubMed, Cochrane Library, CINAHL, EMBASE, and Web of Science databases were searched. Selection criteria were observational and experimental studies that assessed sleep as an outcome, included adult patients admitted to the ICU, and published between November 2015 and April 2022.Results : A total of 21,136 articles were identified through search engines and manual searches, and 42 articles were selected. From these, 22 influencing factors and 11 interventions were identified. Individual factors included disease severity, age, pain, delirium, comorbidities, alcohol consumption, sex, sleep disturbance before hospitalization, chronic obstructive pulmonary disease (COPD), cardiovascular disease, and high diastolic blood pressure (DBP), low hemoglobin (Hb), and low respiratory rate (RR). Environmental factors included light level, noise level, and temperature. Furthermore, treatment-related factors included use of sedatives, melatonin administration, sleep management guidelines, ventilator application, nursing treatment, and length of ICU stay. Regarding sleep interventions, massage, eye mask and earplugs, quiet time and multicomponent protocols, aromatherapy, acupressure, sounds of the sea, adaptive intervention, circulation lighting, and single occupation in a room were identified.Conclusion : Based on these results, we propose the development and application of various interventions to improve sleep quality in patients who are critically ill.
Factors Associated with Sleep Quality in Patients with Coronary Artery Disease
Authors: Lee Su-Jin , Hwang Sun-Kyung
Published: June 2023

Purpose : This study aimed to examine the relationship between sleep quality and its influencing factors in patients with coronary artery disease (CAD).Methods : This descriptive correlational study included 130 patients with CAD admitted to the cardiology department of a general hospital in B City between September 2019 and February 2020. Data were collected using structured questionnaires and research instruments to measure sleep quality, anxiety, depression, chronotype, and daytime sleepiness.Results : The mean scores for sleep quality, daytime sleepiness, anxiety, and depression were 7.59±3.45, 6.45±3.46, 6.58±3.88, and 7.74±4.05, respectively. In terms of chronotypes, 10.8%, 48.5%, and 40.7% of the participants had evening-, intermediate-, and morning-type patterns, respectively. Sleep quality was significantly correlated with anxiety (r=0.38, p＜.001), depression (r=.37, p＜.001), and daytime sleepiness (r=.26, p =.002). Factors associated with sleep quality in patients with CAD included anxiety (β=.29), heart failure (β=.22), daytime sleepiness(β=.21), and sleeping alone (β=.19). Collectively, these factors had an explanatory power of 23.1% for sleep quality variance.Conclusion: Patients with CAD often experience poor sleep quality owing to various factors such as anxiety, daytime sleepiness, heart failure, and sleeping alone. It is recommended that healthcare providers objectively evaluate sleep and identify factors that influence sleep quality. This will enable the development of effective methods for sleep management as part of nursing care.
Mediating Effects of Diet Quality between Meal Frequency and Cardiometabolic Risk among Korean Adults: Data from the 7th Korea National Health and Nutrition Examination Survey (KNHNES)
Authors: Cho Yoo Mi , Lee Kyoung Suk
Published: June 2023

Purpose : The 2020 Dietary Guidelines Advisory Committee specifically noted that meal frequency is associated with risks for cardiovascular disease, type 2 diabetes, and all-cause mortality, although the current evidence on meal frequency is conflicting. As meal frequency itself is affected by various factors, the aim of the study was not only to examine its relationships with cardiometabolic risk but also to identify the mediating effects of dietary quality.Methods : This study used a descriptive correlational design. In all 8,141 healthy adults participated in the study. Measurements included meal frequency, cardiometabolic risk, and diet quality. Data were analyzed using descriptive statistics, Pearson’s correlation coefficient analysis, and process macro bootstrapping model 4.Results : The meal frequency was 3.52±0.61 times per day, the risk of cardiovascular metabolic diseases was 0.01±0.61 points, and the diet quality was 62.08±13.87 points. In mediation analysis, the effect of meal frequency on cardiometabolic risk score was completely mediated by diet quality.Conclusion : Improved diet quality in healthy adults should be considered when designing meal frequency interventions aimed at reducing their cardiometabolic risk, as the effect of meal frequency support on cardiometabolic risk was found to be mediated by diet quality.
Analisis Dinamik pada Model Matematika SVEIBR dengan Kontrol Optimal Untuk Pengendalian Penyebaran Penyakit Kolera
Authors: Nuha Agusyarif Rezka , Resmawan Resmawan , Mahmud Sri Lestari , Asriadi Asriadi , Agung Andi , Chasanah Sri Istiyarti Uswatun
Published: June 2023

Cholera is an infectious disease that attacks the human digestive system and can cause death. This article discusses the research results related to the mathematical model of the spread of cholera in the form of an optimal control system by combining three control strategies: vaccination, quarantine, and environmental sanitation. Pontryagin's maximum principle is applied to obtain optimal conditions based on the control strategy applied. Referring to the optimal conditions set, the model was solved numerically using the Runge-Kutta Order 4 method to describe the theoretical results. The calculation results show that applying the three control strategies in controlling the spread of cholera positively impacts reducing the number of cases of infection so that disease transmission can be discontinued.
COLOR Y CARACTERÍSTICAS NUTRACÉUTICAS DE TORTILLAS DE MAÍCES (Zea mays L.) NATIVOS PREPARADAS CON DIFERENTES DOSIS DE ÁLCALI Y REFRIGERADAS
Authors: Gutiérrez-Llanos Margarita , Alemán-de la Torre Ivone , Salinas-Moreno Yolanda , Santillán-Fernández Alberto , Ramírez-Díaz José Luis , Ledesma-Miramontes Alejandro
Published: June 2023

La nixtamalización del grano de maíz con antocianinas causa pérdida considerable (50-75 %) de estos compuestos en su proceso de transformación hacia tortillas. Existe poca información del efecto del pH alcalino de la tortilla durante su almacenamiento en refrigeración. El objetivo del presente estudio fue determinar el efecto de diferentes concentraciones de álcali durante la nixtamalización sobre color, variables fenólicas y capacidad antioxidante (CA) de tortillas elaboradas con granos de maíces con antocianinas y almacenadas en refrigeración. Se utilizó una variedad de maíz de grano azul morado (AZM) y otra de grano rojo cereza (RC). Las concentraciones de álcali fueron 0.5, 0.7, 1.0 y 1.5 %, y los tiempos de almacenamiento de las tortillas fueron de 1, 6 y 12 días. Las variables fenólicas incluyeron contenido de antocianinas totales (CAT) y fenoles solubles totales (FST). La capacidad antioxidante (CA) se midió con los métodos ABTS [ácido 2,2′-azinobis (3-etilbenzotiazolina-6-sulfónico)] y FRAP (poder antioxidante reductor férrico). El efecto del álcali sobre el color de la tortilla fue diferente de acuerdo con el color del grano. La tortilla de maíz AZM intensificó su color azul al incrementarse el álcali a 1.0 %; en concentraciones mayores predominó un tono amarillento, mientras en la RC, el color rosado prevaleció hasta la concentración de 0.7 %, mayores concentraciones indujeron tono amarillento. Al final del almacenamiento, la tortilla AZM perdió entre 61 y 76.8 % de su CAT inicial, en la tortilla RC las pérdidas variaron entre 23 y 45.5 %, según la concentración de álcali empleada. La CA de las tortillas se conservó durante el almacenamiento cuando se emplearon concentraciones bajas de álcali. El efecto de la cantidad de álcali durante la nixtamalización sobre el color, CAT, FST y CA difiere según el color del grano, e influye en la estabilidad de las antocianinas durante el almacenamiento de las tortillas.
The Writing of the Vagrancy Motif in Bildungsromans: A Comparative Analysis of Kim Joo-young’s Stingray and Cao Wenxuan’s The Bird
Authors:   The Institute of Humanities at Soonchunhyang University, Guo Rui
Published: June 2023

Vagrancy, a common form of human existence, has been closely linked to the historical process of human civilization and, as a result, has become one of the most frequently employed motifs in literature. In Kim Joo-young’s Stingray and Cao Wenxuan’s The Bird, both the young protagonists departed from home and embarked on a journey of self-growth through their direct and indirect experience of vagrancy, thereby reflecting the similarities in the portrayal of the vagrancy motif. Nonetheless, the writing of the vagrancy motif in the two novels also presents differences, characterized by the contrasting depictions of realistic vagrancy featuring “crisis-escapefreedom” and romantic vagrancy featuring “dream-pursuit-return”. The similarities between the two novels are attributed to the correspondences between the vagrancy motif and the Bildungsroman genre, while the differences stem primarily from Kim and Cao's divergent interpretations of the vagrancy motif, with Kim regarding vagrancy as an essential form of human existence, whereas Cao romanticizes vagrancy as the pursuit of one's dream.
Zihin Kuramı: İlkokul Düzeyinde Okuma Becerisini Oluşturan Bilişsel Bileşenleri Değerlendirme
Authors: YILDIRIM Kasım , GÖK Seçkin , KILIÇ Kahraman
Published: June 2023

Araştırmanın amacı ilkokul çocukları özelinde okuduğunu anlama ve dinlediğini anlama becerisini etkileyen önemli bir değişken olan zihin kuramının Türkçe dil becerileri bağlamında yapılandırılmış bir testini oluşturmaktır. Araştırmanın amacından hareketle zihin kuramı testi yapılandırılmaya çalışılmıştır. Bu testin yapılandırılma sürecinde, test maddelerinin yazılması, pilot uygulamalar yapılması, madde analizi, geçerlilik ve güvenirlik çalışmaları işlem basamakları olarak takip edilmiş ve sunulmuştur. Araştırmanın çalışma grubunu Aydın ili Efeler ilçesinde bulunan bir devlet okulunun iki 3. sınıf şubesi (N=52) oluşturmuştur. Çalışmada veri toplama aracı olarak Zihin Kuramı Testi kullanılmıştır. Bu testte üç farklı yanlış inanç görevi (pasta kermesi, doğum günü kutlaması ve çiftlik ziyareti) yer almaktadır. Ek olarak testte her bir senaryo ile ilgili dört resim olmak üzere toplamda 12 resim bulunmaktadır. Yine her bir senaryo ile ilişkili altı soru olmak üzere test toplam 18 sorudan oluşmaktadır. Araştırmada elde edilen veriler öncelikli olarak Excel programına girilmiştir. Daha sonra veriler SPSS ve Jamovi programlarına aktarılmıştır. Elde edilen veriler üzerinde madde ve güvenirlilik analizleri gerçekleştirilmiştir. Yapılan madde güçlük ve ayırt edicilik indekslerine ilişkin hesaplamalar ve güvenirlik analizleri sonucunda, yapılandırılan zihin kuramı testinin ilkokul düzeyinde okuma becerisi ve ilişkili bilişsel yapıları daha nitelikli bir şekilde değerlendirilebilecek güvenilir ve geçerli bir test olduğu ortaya konulmuştur.
Kriz ve Afetlerde Kurum İçi İletişimin Yönetsel Fonksiyonlar Üzerindeki Etkisine Yönelik Bir Araştırma
Authors: BİLGİN Orhan , IŞIK Metin
Published: June 2023

Bu araştırmada kriz ve afet durumlarında kamu çalışanlarının kurum içi iletişim algılarının yönetsel fonksiyonlar üzerindeki etkisi incelenmiştir. Bu kapsamda nicel bir araştırma gerçekleştirilmiştir. Araştırmanın ana kütlesini Bitlis Valiliğine bağlı kamu kurum çalışanları oluşturmaktadır. Örneklem olarak rassal örneklem yöntemi benimsenmiştir. Veri toplamak için anket tekniğinden yararlanılmıştır. Araştırmaya ana kütle içerisinden 448 personel katılım sağlamıştır. Elde edilen veriler SPSS 25 paket programı yardımıyla güvenilirlik, açımlayıcı ve doğrulayıcı faktör analizleri ile frekans, korelasyon ve çoklu regresyon analizlerine tabi tutulmuştur. Analizler sonucunda; kurum içi iletişimin tüm alt boyutlarının yönetimin yöneltme ve denetim fonksiyonları üzerinde anlamlı bir etkisi olduğu görülmüştür. Diğer taraftan, kurum içi iletişimin sadece yöneticiler ile iletişim boyutunun yönetimin planlama fonksiyonu üzerinde anlamlı bir etkisi olduğu görülmüştür. Analiz sonuçlarına göre; genel olarak kurum içi iletişimin yönetimin bütün fonksiyonları üzerinde anlamlı bir etkiye sahip olduğu tespit edilmiştir. Bu durum çalışanların kurum içi iletişim algısının artmasının yönetim fonksiyonlarının kriz ve afet durumlarında uygulanabilirliğini artırdığı şeklinde değerlendirilebilir.
Afet Eğitimi ve Disiplinlerarası Öğretim: Öğretmenler Ne Düşünüyor?
Authors: BİRİNCİ KONUR Kader , SEZEN VEKLİ Gülşah , ŞEYİHOĞLU Ayşegül , TEKBIYIK Ahmet , KARTAL Ayça
Published: June 2023

Afetlerle ilgili yapılan araştırmalarda disiplinlerarası çalışmaların ön plana çıktığı görülmektedir. Bu araştırmalarda öğretmenlerin bilgi eksikliklerinin afet eğitimine yönelik uygulamalarda sorun teşkil ettiği ifade edilmekte, afet eğitimi araştırmalarının disiplinlerarası anlayışla zenginleştirilmesi önerilmektedir. Bu bağlamda çalışmada öğretmenlerin disiplinlerarası afet eğitimine ilişkin farkındalıkları, afet eğitimi ve disiplinlerarası öğretime ilişkin algılarının ayrı ayrı belirlenmesi yoluyla ortaya çıkarılması amaçlanmıştır. Bu çalışmada nitel tarama yöntemi kullanılmıştır. Araştırmada veri toplama aracı olarak araştırmacılar tarafından geliştirilen ve 11 açık uçlu sorudan oluşan bir form kullanılmıştır. Araştırmanın katılımcılarını fen bilimleri, sosyal bilgiler ve sınıf öğretmenliği branşlarında görev yapan 107 öğretmen oluşturmaktadır. Araştırma sonucunda öğretmenlerin disiplinlerarası öğretimin; birden fazla disiplinin ilişkilendirilmesi ve disiplinlerarası işbirliği gibi genel özelliklerini belirttikleri ancak disiplinlerarası öğretimi uygulama sürecine nasıl entegre edecekleri konusunda bilgi eksiklikleri ve yanılgılı anlamalarının olduğu belirlenmiştir. Bununla birlikte öğretmenler, afet eğitimiyle ilgili nitelikli etkinlik içeriklerinin olmamasını, buna bağlı olarak da hem kendilerinin hem de öğrencilerinin nitelikli eğitim alamamalarını yaşanılan en önemli sorunlar olarak ifade etmişlerdir.
Kocaeli Kongre Merkezi Akçakoca Oditoryumunun Akustik Konfor Ölçütleri Açısından Doğal Akustik Durumunun Değerlendirilmesi
Authors: AYTAÇ Bahanur , ÇAĞLAYAN Seyit Ahmet
Published: June 2023

Bu çalışmada Kocaeli Büyükşehir Belediyesi Kültür Sanat ve Konservatuvar Şube Müdürlüğü bünyesinde bulunan Kocaeli Kongre Merkezi’nde pek çok işleve hitap eden Akçakoca Oditoryumunun, müzik amaçlı kullanımında doğal akustik durumunun ve buna bağlı akustik konforunun ortaya konması amaçlanmıştır. İlk olarak akustik konfor beklentisinin ne olduğu dinleyici, müzisyen ve orkestra şefinin perspektifinden açıklanmıştır. Sonrasında Akçakoca Oditoryumunun akustik durum analizi yapılmıştır. Oditoryum önce tasarım kriterlerine göre incelenmiş; sonra hem öznel hem nesnel bir ölçüt olarak kabul edilen reverberasyon süresi odağında, gelenekselci yaklaşımla ele alınmıştır. Reverberasyon süresi hesaplamasında hem malzeme – yutuculuk ilişkisini daha iyi işleyen bir yaklaşım olduğu düşünülerek hem de reverberasyon süresi denince en yaygın kullanılan formül olan Sabine formülünün kullanımına karar verilmiştir. Sonuçta, mekânın akustik konforunun tasarım ölçütleri ve reverberasyon süresi açısından yeterli olmadığı, elektronik yükselticiler aracılığıyla bu yetersizliğin optimum düzeye getirileceği görülmüştür.
Bir Oyun Teorisi Analizi: Osmanlı Devleti’nde Dilencilik
Authors: YARDIMCI Mehmet Emin , GÜMÜŞ Ümran , KOÇ Alper
Published: June 2023

Sosyal devletin temel amaçlarından birisi, yoksulluk düzeyinin azaltılmasıdır. Bu çalışmanın temel amacı, Osmanlı Devleti sisteminin dilenciliğin önlenmesi hususundaki rolünün değerlendirilmesidir. Bu amaç doğrultusunda devlet ile yoksul insanlar arasındaki etkileşim, tekrarlanan bir oyun teorik model çerçevesinde ele alınmaktadır. Bulgular, Osmanlı Devleti'nin son dönemlerinde dilenciliğin yüksek düzeyde yaygınlaşmasının nedenlerini ortaya koymaktadır. Devlet, her şeyden evvel dilencilerin çalışarak gelir elde etmelerini amaç edinmektedir. Ancak dilencilerin çalışmadan para kazanmaya alışmaları nedeniyle kendilerine iş imkânları sağlansa bile dilenmekten vazgeçmek hususunda gönülsüz hareket etmektedirler. Devletin bu hususta taviz vermemesi gerekmektedir. Bu nedenle modelde oyuncuların (devlet ile yoksul insanlar) yavuz stratejilere sahip oldukları varsayılmaktadır. Nitekim kısasa kısas stratejiler olan bu stratejiler, analizin sonuçlarını doğrudan etkilemektedir
UÇUŞ GÜVENLİĞİ VE TİCARİ HAVAYOLU PİLOTLARININ DUYGU DURUM BOZUKLUKLARI: BİR MODEL ÖNERİSİ
Authors: ÖZVEREN Cem Güney
Published: June 2023

Havacılık alanında yapılan kazalar (burada mevzu bahis olan daha çok uçak kazalarıdır) tarih boyunca her dönem özelinde gündemin zirvesindeki temel konulardan birisi haline gelmiştir. Yüzeysel bir açıklama olsa da gerçekliği yadsınamaz bir yargı da şudur: ‘’Doktor bir hata ile bir kişinin hayatına sebep olabilir ancak pilotun yapacağı bir hata ortalama en az üç yüz kişinin ölümüne sebep olabilir’’. Kuşkusuz uçak kazalarında sorumlu olan sadece pilot ya da yardımcı pilot değildir ancak sorumluluğun çok büyük bir kısmının da pilot ve yardımcı pilotta olduğu söylenebilir. Bu çalışmada pilotların yaşadıkları duygudurum bozukluklarının neler olduğuna değinilecek ve bu duygudurum bozukluklarının pilotların performansına etkisi ve havacılık özelinde meydana getirebileceği olası riskler tartışılacaktır. Alan yazında yapılmış araştırmalardan ve güncel olgulardan faydalanılarak nihayetinde bir sentez yaparak araştırmacılara ve uygulayıcılara birtakım önerilerde bulunulacak, yapılan araştırmalar neticesinde alan yazına bir model önerisinde bulunulacaktır.
Evaluation of state-specific transport properties using machine learning methods
Authors: Istomin Vladimir A. , Kustova Elena V. , Lagutin Semen M. , Shalamov Ivan Y.
Published: June 2023

In this study, machine learning algorithms are employed to calculate state-to-state transport coefficients in nonequilibrium reacting gas flows. The focus is on the evaluation of thermal conductivity, shear viscosity, and bulk viscosity coefficients under conditions of strong coupling between vibrational-chemical kinetics and gas dynamics. In order to solve a regression problem for evaluating state-to-state transport coefficients, a specific software application with user interface is developed, which allows loading, processing, and saving of data arrays; configuring model architecture; training and evaluating models with various optimizers, loss functions, and metrics; making predictions using trained models. Using the developed software the multi-layer perceptron regression model is constructed and trained. The model is assessed in a binary mixture of molecular and atomic nitrogen taking into account 48 vibrational states; the coefficients are computed in the wide temperature range for the varying mixture composition. Good agreement of the results with the original transport coefficients calculated using rigorous but computationally expensive kinetic theory algorithms is shown. Applying machine learning techniques yields a significant speedup
of about two orders of magnitude in the computation of transport coefficients. It is concluded that implementation of machine learning methods may considerably reduce the computational efforts required for nonequilibrium flow simulations.
New data on pollen morphology of the genus Camphorosma (Chenopodiaceae)
Authors: Tsymbalyuk Zoya M. , Mosyakin Sergei L. , Nitsenko Lyudmila M.
Published: June 2023

Recent molecular phylogenetic studies of Camphorosmoideae (Chenopodiaceae) demonstrated that Camphorosma is monophyletic. Palynomorphological peculiarities are used in taxonomy as additional diagnostic features and pollen analysis. Pollen morphology was studied using light and scanning electron microscopy, based on 13 specimens belonging to four species (C. annua, C. lessingii, C. monspeliaca and C. songorica). The aim of this research was to provide new data on pollen characteristics of the above mentioned species and to evaluate their taxonomic value. The results obtained show that pollen grains are pantoporate, spheroidal, circular in outline, undulate or slightly undulate on the edges; small or medium-sized. Pores are circular, with distinct margins. Exine sculpture is nanoechinate, tectum psilate or psilate-perforate. Pore membranes are nanoechinate. Taxonomic relevance of the most important characters of pollen grains (pollen diameter, pore number, pore diameter, distance between pores and between pore centres, C/D value, nanoechini density, presence/absence of perforations, number of nanoechini on pore membranes, structure of columellae) is discussed. The exine structure of pollen grains of all species was analysed for the first time in the current study. Pollen morphology proved to be an important additional source of information for taxonomy for species-specific identification and pollen analysis within Camphorosma. Palynomorphological data are interpreted in the existing phylogenetic framework.
Holocene vegetation history of the Western Rhodope Mountains (South Bulgaria): the paleoecological record of peat bog Beliya Kanton
Authors: Marinova Elena , Lazarova Maria , Ivanov Dimiter , Tonkov Spassimir
Published: June 2023

Pollen and plant macrofossil analyses supported with radiocarbon dating were conducted on a Holocene core from the peat bog Beliya Kanton (1547 m a.s.l.) located in the Western Rhodope Mountains (South Bulgaria). In the early Holocene until ~10 000 cal. BP the mountain slopes were covered by Pinus, admixed with Betula, Juniperus and shrubland of Ephedra among herb communities dominated by Poaceae, Cichorioideae, Achillea, Artemisia, Brassicaceae species. Subsequently, the afforestation continued with the expansion of broadleaved oak forests with Tilia, Ulmus and Corylus which reached their maximum distribution ~8800 cal. BP. Gradually, these forests began to retreat, replaced at many places first by Corylus and later on by Picea abies, Abies alba and Fagus. The formation of the contemporary coniferous belt with the dominance of Pinus – Picea abies and fragmented mixed coniferous-deciduous communities in the late Holocene was attributed not only to climate change but also to diverse human interference in the natural forest cover. During the last 2000 years the continuous presence of Juniperus, Juglans, Rumex, Cirsium, Plantago lanceolata and Hordeum pollen indicated intensive stock-breeding, grazing and crop cultivation. The fragments of charred wood testify to tree felling and fire clearances on flat ground to obtain new pasture land.
Internet Freedom During Crises: limits and Restrictions
Authors: Al khasawneh Ibrahim , Al-Debaisi Abdulkareem A.
Published: June 2023

The study aimed to reveal the limitations imposed by some political systems in the world to restrict Internet freedom during political crises, conflict, and the dangers of those limitations, restrictions on freedom of expression and human rights. The study adopted the descriptive approach to explain the theoretical framework of the concept of freedom of human use of the Internet, freedom of the Internet as a human right, the role of the Internet in encouraging freedom of expression of public opinion, the types of restrictions imposed on it in normal circumstances and in times of crisis, and the motives of those determinants and their impact on societies. The study concluded that the freedom to use the Internet as a human right is still tainted by many restrictions, and that the United States used the concept of Internet freedom to achieve political motives, and as a means to impose its agenda on some political systems in the world, with the aim of strengthening its power and protecting its interests, and that the most prominent limitations on the freedom of Internet use during crises are;Internet shutdown, imposing censorship, and restricting access to it, and the results indicated an increase in cases of deliberate government Internet shutdown in a number of countries in the world, reaching 96 cases since the beginning of 2022 until the end of the third quarter of it, carried out by 21 countries to confront protests, demonstrations or Political conflicts, and these indicators point to increasing violations of Internet freedom in crises, and human rights.

هدفت الدراسة إلى الكشف عن المحددات التي تفرضها بعض النظم السياسية في العالم لتقييد حرية الإنترنت خلال الأزمات السياسية، والصراع، ومخاطر تلك المحددات والقيود على حرية التعبير عن الرأي وحقوق الإنسان. واعتمدت الدراسة المنهج الوصفي لبيان الإطار النظري لمفهوم حرية استخدام البشر لشبكة الإنترنت، وحرية الإنترنت كونها أحد حقوق الإنسان، ودور الإنترنت في تشجيع حرية التعبير عن الرأي العام، وأنواع القيود المفروضة عليها في الظروف الاعتيادية، وفي وقت الأزمات، والغايات من تلك المحددات وتأثيرها على المجتمعات. وخلصت الدراسة إلى أن حرية استخدام الإنترنت كونها من حقوق الإنسان ما يزال يشوبه الكثير من القيود، وأن الولايات المتحدة استخدمت مفهوم حرية الإنترنت لتحقيق دوافع سياسية، ووسيلة لفرض أجندتها على بعض النظم السياسية في العالم، بهدف تعزيز قوتها وحماية مصالحها، وأن أبرز القيود المحددة لحرية استخدام الإنترنت خلال الأزمات هي؛ قطع الإنترنت، وفرض الرقابة، وتقييد حق الوصول إليها، وأشارت النتائج إلى تزايد حالات قطع الحكومات المتعمد للإنترنت في عدد من دول العالم، إذ بلغت 96 حالة منذ بداية عام 2022 ولغاية نهاية الربع الثالث منه، قامت بها 21 دولة لمواجهة احتجاجات، أو تظاهرات أو صراعات سياسية، وتدل هذه المؤشرات على انتهاكات متزايدة لحرية الإنترنت في الأزمات، وحقوق الإنسان.