bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Models Guided Doscovery Learning on Class VIII Students' Mathematical Creative Thinking Ability of Mts Ma'arif Nu 04 Tamansari
Authors: Amany Septy Faiqotul , Nuha Muhammad 'Azmi
Published: November 2023

The background of this research is the low ability to think creatively mathematically in class VIII students at MTs Ma'arif NU 04 Tamansari, because the teacher's learning uses the lecture method, where students only pay attention to explanations, so students are less interested in learning and have difficulty understanding the material. Therefore, researchers use learning models that can improve students' creative thinking abilities, one of which is the Guided Discovery Learning learning model. The Guided Discovery Learning Learning Model is a learning model that prioritizes student activity in processing information or learning materials through guidance from the teacher and collaboration between students. The research design used in the study was the Pretest and Posttest Control Group. In this study, the population taken was students of class VIII MTs Ma'arif NU 04 Tamansari, namely class VIII A, VIII B, VIII C, VIII D, and VIII E. While the sample was class VIII B and VIII C. Sampling in this study using the technique of Convanience Sampling (Desirability Sampling). The data collection technique used in this study was in the form of essay tests in the form of pretest and posttest. Data analysis techniques using the t test. The results of this study are that the Guided Discovery Learning learning model is carried out very well and the Guided Discovery Learning learning model influences the ability to think creatively mathematically in class VIII students.
Achievement of Mathematics Teachers on Production of Computer Based Software Package for Teaching And Learning of Mathematics
Authors: Etukudo Udobia Elijah
Published: November 2023

The research was carried out to determine the achievement of mathematics teachers in the production of computer-based software packages for teaching and learning mathematics. Fifty (50) mathematics teachers of which twenty (20) were from primary schools, fifteen (15) from secondary schools and fifteen (15) were lecturers from, tertiary institutions, were selected for this study. They were trained on computer-based software package production for twenty-one (21) days and rated. The result of the analysis using ANOVA and t-test at 0.05 level of significance, shows that there was no significant difference in achievement of the teacher in computer-based software package production. Primary school teachers had mean achievement score of 73%, secondary 72%, lecturers 75%. Male had 75.6%, female 71.5%, t-ratio showed no gender difference at 0.05 level of significance. It is recommended that computer-based software production by teacher should be encouraged.
Ещё раз о доказательстве Гёделя
Authors: Парфенов Алексей
Published: November 2023

Внимательное рассмотрение логики построения доказательства «Теоремы о неполноте», выявляет ряд нестыковок и противоречий, делающих процедуру доказательства невыполнимой. Самой главной «нестыковкой», наверное, следует считать то, что запись

∀ x ~ Dem(x, sub(y, 13, y))

в символах базового алфавита не представима, а, следовательно, вычислимого по предложенной процедуре номера не имеет. И, таким образом, все действия,связанные с использованием этого номера, осуществлены быть не могут.
future of archaeology
Authors: Wieckhoff Brett
Published: November 2023

Archaeology and archaeological theory are currently largely in the era of post-processualism. This has been significant as it has changed the ways that archaeologists interact with communities who are stakeholders in community-based archaeological research. However, not all archaeological research has followed suit and in many countries the archaeology still practiced does not include or benefit the local communities. I argue that moving into the future, archaeology must adopt a community-based approach as a mandatory practice in all situations. Community-based archaeology is relatively new in many parts of the world and thus its meaning is still ambiguous. How can we, as archaeologists, do better for the communities we work with and create long-lasting meaningful relationships with them? Community-based archaeology can mean many things and its breadth is part of what makes it so useful, but I argue that it must include meaningful engagement with the source community which leads to a form of heritage-building and empowerment.
Arabské jaro – příčiny, průběh, důsledky. I. díl – Tunisko, Libye, Maroko
Authors:   University of West Bohemia, Sobotková Veronika , Pěchota Jan ,   University of West Bohemia
Published: November 2023

This book attempts pro present historical summary of the events known as „Arab Spring“ together with analysis of their causes and impacts for each affected country. This volume explores the turmoil in Tunisia, Libya, and Morocco.
On the issue of choosing calculation methods in problems of monitoring local strength in on-board intelligent systems
Authors: Burakovskiy Evgeny Petrovich , Burakovskiy Pavel Evgen'evich , Verevochkin Andrey Vladimirovich , Yusyp Vyacheslav Mihaylovich
Published: November 2023

The results of the analysis of emergency statistics indicate that the problem of improving the safety of sea navigation remains very relevant. At the same time, one of the causes of serious damage to the hulls of ships is the effect of intense locally distributed loads, which often lead to the destruction of structures and even the death of ships. A promising way to solve this problem is the introduction of onboard intelligent systems into the practice of ship operation. To develop a local strength control unit, it is necessary to have methods for calculating structural elements beyond the elastic limit that provide the required accuracy with minimal computing power. A technique has been developed to take into account the effect of subsidence of frames adjacent to the loaded frame on the deformation of the locally loaded side overlap, and an assessment of the possibility of its application in the local strength control unit of the onboard intelligent system has been carried out. The presented technique is based on the realization of the hypothesis “about the instantaneous opening of plastic hinges”. The comparison with the calculation results using the finite element method implemented in the ANSYS software package is carried out. An acceptable for strength calculations of ship hull structures agreement of the results was noted, which indicates the possibility of practical use of the developed methodology, in particular when implementing the local strength control unit in on-board intelligent systems.
PENERAPAN KONSELING RASIONAL EMOTIVE THERAPY UNTUK MENGATASI KECEMASAN DALAM PELAKSANAAN UJIAN AKHIR SEMESTER
Authors: Handayani Putri , Sumarwiyah Sumarwiyah , Gudnanto Gudnanto
Published: November 2023

This study aims to: 1. To determine the factors that cause anxiety in the implementation of the final semester exam, 2. To overcome anxiety in the implementation of the end of semester exam by using rational emotive therapy (RET) counseling. The subjects studied where 2 class XII-MIPA 5 student of SMA N 01 Jekulo Kudus who experienced anxiety in problem in facing final semester exams. The method of data collection uses the method of observation, interviews, and documention which is carried out in depth so that later it Will get accurate results on the problem studied by the author. Based on the who experienced anxiety in problem in facing final semester exams, it can be concluded that problem in facing final semester exams, because of fear when working on questions, nervous, dizzy, forgetting/blank when working on question, lack of concentration, and fear of competing grades in class. To assist counselees in overcoming anxiety in facing online learning, Rational EMOTIVE counseling is given. By using rational emotive therapy counseling, accept the fact that the value earned by his friend which is better because each individual has its own potential and different values good does not mean he will be a smart and successful person, but the value is mediocre can also be a successful person as long as there is confidence in himself. And students are expected to be ableto self-control so that they no longer experience enxienty or fear, and understand the consequences of anxienty problem facing dinal semester exans, so that students are able to take final semester exams calmly
MENINGKATKAN MOTIVASI BELAJAR DARING MELALUI LAYANAN BIMBINGAN KELOMPOK DENGAN TEKNIK NUMBERED HEADS TOGETHER PADA SISWA KELAS VIII H SMP NEGERI 1 JATI KUDUS
Authors: Apriliani Nike Arditha , Zamroni Edris , Santoso Santoso
Published: November 2023

The research objectives were: 1. To describe the implementation of group guidance services to increase online learning motivation in class VIII H students at SMP Negeri 1 Jati Kudus in the 2022/2023 academic year. 2. An increase in online learning motivation was obtained through the Numbered Heads Together technique group guidance service for students in class VIII H at SMP Negeri 1 Jati Kudus for the 2022/2023 academic year. In Numbered Heads Together there are four stages in its implementation including, the action planning stage, the action implementation stage, observation and reflection. Motivation to learn is a process of movement along with encouragement in humans to carry out the process of changing behavior related to aspects of knowledge, skills and even attitudes. The research used was Guidance and Counseling Action Research (PTBK) with 8 students as research subjects. The results of the research on pre-cycle online learning motivation get an average score of 10 with a percentage of 30%. Whereas in cycle I got an average score of 18 percentages 54%. Whereas in cycle II, an average score of 30 percentages is 90%. In the implementation of group guidance services with Numbered Heads Together, the results of observations of researchers were carried out during group guidance which obtained results in the first cycle of researchers getting a score of 20 percentages, 60%. Meanwhile, in cycle II, a score of 29 percentages 87%. In conclusion, the results of the study showed an increase in online learning motivation after being given group guidance services with Numbered Heads Together to class VIII H students of SMP N 1 Jati Kudus, which was acceptable, this was proven after the implementation of group guidance services with Numbered Heads Together there was an increase of 87% from cycle I to cycle II while in online learning motivation there was an increase of 90% from pre-cycle to cycle II.
Mengatasi Malas Belajar Melalui Behavior Teknik Self Management pada Siswa Kelas X Elektronika SMKN 1 Kalinyamatan
Authors: Muliasetyani Maulinda Tri , Kiswantoro Arista , Sumarwiyah Sumarwiyah
Published: November 2023

The objectives of this study are finding factors that influence learning laziness at SMK N 1 Kalinyamatan and overcoming learning laziness through the application of Behavior Counseling Self-Management Techniques. The type of research is qualitative case study. The data collection techniques are observation, interviews, documentation, and home visits. The results of the study prove that the application of Behavior Self Management techniques in overcoming learning laziness for TAS and AMN can change maladaptive behavior to adaptive behavior. Before counseling, the occurrence of learning laziness in students factor is the financial problems, over tired of working, and often playing game. AMN there are his busy schedule, often over tired hangs out or playing futsal. Therefore, TAS and AMN have learning laziness problems. After individual counseling to a better one, which means that individual counseling using the Behavioristic approach Self Management technique is successfully used to overcome the problem of learning laziness.
MENGATASI PERILAKU MEMBOLOS MELALUI KONSELING BEHAVIORISTIK DENGAN TEKNIK BEHAVIOR CONTRACT
Authors: Karyanto Karyanto , Masturi Masturi , Kiswantoro Arista
Published: November 2023

It be conducted at SMP Negeri 2 Sukolilo with two students as the research subjects. Data collection techniques include interviews, observation, and documentation. Based on the results of the study, it is found that the internal factors causing truancy behavior are personal problems that underlie the behavior of each counselee. Counselee I has an external factor, which is the influence of peers and their home environment. Counselee II is caused by the factors of discrimination and lack of support from those around them. From the results, it can be concluded that truancy behavior includes many factors, including personal factors, family factors, environmental factors, and socio-economic factors. It is important to address the factors that can influence students' truancy behavior by understanding the underlying issues and providing appropriate and relevant support, both in terms of mental and emotional health, academic support, family support, and positive and inclusive educational environment support.
Muhammadiyah and Religious Moderation: Response to Actions of Muhammadiyah to Prevent Modern Radicalism (Case Study of Leadership Period 2015 – 2021)
Authors: Kurniawan Bachtiar Dwi , Efendi David , Mahadika Alam , Pahlevi Moch Edward Trias , Amrurobbi Azka Abdi
Published: November 2023

This study will narrate the response of Muhammadiyah's actions in stemming Radicalism in the leadership of Haedar Nashir, namely the period 2015 - 2021, the reaction of Muhammadiyah's Radicalism at this time, offering a Moderation program for the fight against Radicalism. After the Reformation, it experienced radicalization in ideological power. The form of Radicalism was not only in the scope of religious ideology but also entered the scope of the ideologies of liberalism, capitalism, totalitarianism to fascism. Therefore, it can be concluded that Radicalism is not only from the point of view of religious activity but also that ideology can be implemented in a system of Radicalism in the form of Economics and Politics. This research has a problem formulation, namely, how is Muhammadiyah's response in stemming Radicalism? Especially three points of view from Religious Radicalism, Economics, and Politics. This study also uses two theories, namely the theory of Moderation and the idea of Radicalism. The research method used is descriptive qualitative to examine Muhammadiyah and Moderation on the response of Muhammadiyah's leadership in 2015-2021 in stemming Radicalism related to the research questions in the background. This qualitative research uses a previous study's literature study data collection technique. The researcher also tries to take a literature review from the Connected paper application with two keywords, Muhammadiyah Moderation and Muhammadiyah Radicalism. The qualitative data analysis is interpreted by analyzing data reduction, data exposure, and drawing conclusions or verifying conclusions
The Roles of UNFPA-UNICEF in the Case of Child Marriage in Yemen 2016-2019
Authors: Trisnani Endah , Badruzaman Idham
Published: November 2023

This research is motivated by the fact that currently child marriage is a form of violation of human rights and is an indicator of various other global health problems. Yemen is one of the largest contributors to child marriage cases in the Middle East and Yemen is home to 4 million child brides, and 1.4 million of it got married before the age of 15. This study aims to analyze and describe the role of UNFPA-UNICEF in the accelerate action to End Child Marriage program to reduce child marriage in Yemen in 2016-2019. This study uses qualitative research methods and uses a collection technique for collecting data of library research using secondary data collected from UNFPA and UNICEF annual reports, books, journals, articles and internet media. The results of this study show that the global implementation of the UNFPA-UNICEF program has had an impact on reducing child marriage in Yemen
Dynamic educational philosophy for learning technology management
Authors: Centeno-Leyva Sharon , Barrutia Barreto Arturo
Published: November 2023

Notions such as STEAM education, computational thinking, gamification, and the manipulation of ICT (Artificial Intelligence, IoT, augmented reality, 3D printing or virtual reality), have appeared to configure what is known as Education 4.0. Under the Latin American context, and the economic, political, cultural and social situation of the countries that make up this geographical space, it is worth asking: to what extent has Education 4.0 been implemented, or some of its elements, unlike developed countries? Latin American educational systems, despite the global trend that seeks to assimilate the elements of this type of education, reflect a minority of countries possible to be classified as education 4.0, identifying the intelligible relationship between economic development and educational model.
Diseño y juego para el fomento lector desde la primera infancia: análisis de los libros objeto de Antonio Ladrillo y Elena Odriozola
Authors: Martínez-Carratalá Francisco Antonio , Miras Sebastián , Rovira-Collado José
Published: November 2023

La materialidad del libro álbum, así como la secuencia y la relación entre el texto y la ilustración son elementos centrales en su definición y éxito para ser considerado una pieza clave en la iniciación a la lectura. Esta investigación realiza un análisis desde distintas perspectivas (semiótica, literaria y multimodal) de los álbumes para la primera infancia de dos artistas españoles reconocidos: Antonio Ladrillo y Elena Odriozola. Los resultados muestran las diferentes aproximaciones a la lectura desde el álbum como objeto estético, resaltando la importancia de estas propuestas artísticas desde las primeras etapas como puerta de entrada al placer lector.
Development and comparative analysis of protein-polyphenol-fibre bars as nutritional supplements suitable for healthy senior consumers
Authors: Jolji M. , Pecsenye B. , Mposula Z. , Aleya A. , Kiss T. , Mathé E.
Published: November 2023

The number of elderly people is steadily increasing in developing countries though the specific age-related challenges of nutrition fail to get properly addressed in the case of senior citizens. Accordingly, we have developed protein-polyphenol dietary fibre (PPF) bars using two kinds of protein mixtures (1 and 2) and some food additives, such as the banana powder, freeze-dried strawberries, coconut powder, Dutch cacao powder, and vanilla cookies, as they can interfere with the texture of bars and the flavour as well. The used food additives are also a source of polyphenols and dietary fibres that would enhance the nutritive values of the bars. The texture properties, such as hardness and cutting force, were assessed, and the results indicated a significant difference (P < 0.05) among the bars, offering important hints about their suitability for the elderly. Also, significant differences were observed for the polyphenol content of the bars that would stress their increased nutritional relevance too. On average, the sensorial evaluation showed the developed bars of moderate acceptability, while Bar 3 and 6 had the highest scores for colour, texture, flavour, and aroma. Conversely, Bar 1 recorded the lowest values for all assessed criteria.

Interestingly, Bar 3 with freeze-dried strawberries and Bar 6 with Dutch cacao powder were the most appreciated flavours and contained in the range of 25–28% protein, 17–23% carbohydrate, 15–21% lipids, and 15–23% dietary fibre, which also indicates their nutritionally balanced nature. Furthermore, the above-mentioned macronutrient content ensures approximately 400 Kcal/100g per PPF bar, while through their polyphenol and flavonoid yield their health-promoting effect gets substantiated.
Acquisition of English nominal suffix -er by advanced EFL learners: a view from usage-based perspective
Authors: Takač Višnja Pavičić , Buljan Gabrijela
Published: November 2023

The present study investigated advanced Croatian EFL learners’ knowledge of five meanings of the English nominal (deverbal) suffix -er. It probed their ability to comprehend and produce corpus-rare and presumably unentrenched -er nouns in their prototypical agent and instrument meanings and their non-prototypical patient, locative, and causative meanings. It was hypothesized that participants would deal effortlessly with agent and instrument meanings of the low-frequency nouns since the corpus-attested high type frequency of -er agents and instruments, among others, suggests the existence of productive corresponding schemas. We hypothesized that participants would struggle with patient, locative and causative meanings of the low-frequency nouns since the corpus-attested low type frequency of the three functions arguably does not support their association with -er. A recognition and a production test were administered to two separate groups of English majors at a Croatian public university (n = 131). Results confirm general usage-based predictions about better performance with low-frequency agent and instrument -er nouns. However, a detailed examination reveals unexpected results, which confirm that frequency, however important, is not the only factor to include in a future model of EFL learners’ derivational proficiency.
On Rathore type operators
Authors: Buşcu Ioan Cristian , Paşca Vlad , Seserman Andra
Published: November 2023

V. Gupta introduced recently the Rathore type operators Rn,c
. For them we obtain Voronovskaja type results. We extend the classical Szász-Mirakjan operator and compare the extension with Rn,c
.
About uniform continuous functions which are not Lipschitz
Authors: Prăjitură Gabriel , Vernescu Andrei
Published: November 2023

To approximate a function, some simpler functions are used: simpler as definitory structure (formula) and also as regularity, continuity and/or smoothness.

Any Lipschitz function is a uniformly continuous function, but conversely it not always true. We add to the usual examples some other, especially of the class of differentiable functions.
God as Über-King of Moral Leading: Veiled and Unveiled
Authors: Moser Paul K.
Published: November 2023

How can the Biblical God be the Lord and King who, being typically unseen and even self-veiled at times, authoritatively leads people for divine purposes? This article’s main thesis is that the answer is in divine moral leading via human moral experience of God (of a kind to be clarified). The Hebrew Bible speaks of God as ‘king,’ including for a time prior to the Jewish human monarchy. Ancient Judaism, as Martin Buber has observed, acknowledged direct and indirect forms of divine rule and thus of theocracy. This article explores the importance of divine rule as divine direct leading, particularly in moral matters, without reliance on indirect theocracy supervised by humans. It thus considers a role for God as Über-King superior to any human king, maintaining a direct moral theocracy without a need for indirect theocracy. The divine goal, in this perspective, is a universal commonwealth in righteousness, while allowing for variation in political structure. The article identifies the importance in the Hebrew Bible of letting God be God as an Über-King who, although self-veiled at times, leads willing people directly and thereby rules over them uncoercively. It also clarifies a purpose for divine self-veiling neglected by Buber and many others, and it offers a morally sensitive test for unveiled authenticity in divine moral leading.
CT-Scan-Based Approach for Turbine Blade Geometry Extraction
Authors: Al-Akam Aws , Al Juboori Ameen M.
Published: November 2023

This paper presents a method for the assessment of the geometrical properties of the turbine blade after a long running time. This method uses a medical imaging device (CT-Scan) to provide segmentation images of the turbine blade. Image processing technique was employed to produce the cross-sectional properties such as area, centroid, minimum moment of inertia, maximum moment of inertia, and the angle of twist of the principal axes along the blade span. This geometrical information was produced using MATLAB code and validated against Image-J software data. This method can be used as a nondestructive method to evaluate the geometry of the turbine.
Flutter Measurement of a Linear Turbine Blade Cascade with an Angular Position Deviation of One Blade
Authors: Eret Petr , Tsymbalyuk Volodymyr , Eckert Markus
Published: November 2023

Experimental flutter testing of high-aspect ratio rotor blades is a mainstay of turbomachinery research. However, rotor blades are never identical, and geometrical errors between actual and nominal geometries exist due to limited machining precision or assembly imperfection. The paper presents the initial phase of the controlled flutter research of a linear turbine blade cascade with a geometric deviation in one blade position. A subsonic wind tunnel with four flexibly mounted blades in an otherwise rigid blade cascade is employed at one angle of incidence and three low reduced frequencies. Measurements are performed with an angular position deviation (±1.5°) of one blade in pure bending and torsion modes. A tangible effect of one blade’s slight incidence angle offset on the vibrating blade cascade aerodynamic stability is demonstrated, and this research effort opens the door to a more extensive testing campaign.
Justification of the Choice of Parameters for the Gear Power Skiving Operation Based on Computer Simulation
Authors: Hrytsay Ihor , Slipchuk Andrii , Bosansky Miroslav
Published: November 2023

The paper presents the results of modelling and investigation of the gear cutting process using the power skiving method. The investigations are based on the developed geometrical model of undeformed chips. The approach is based on the original method of forming an integral three-dimensional model on the basis of discrete cross-sections of tool tooth in their successive positions on the cutting path, taking into account the shape and size of the gap previously formed by this tooth. The formulae for calculating the cutting force and the forces acting on the work gear and tool are derived as a function of the angular position of the cutter. The dependence of this force on the angle of tool shaft setting and the angle of inclination of gear teeth is studied. The formulae take into account how the cutting intensity changes due to the peculiarities of the kinematics of power skiving technology and the influence of the actual geometric parameters of the tool on the cutting force. Based on the obtained dependencies, a methodology has been developed for the selection of the axial feed rate and spindle set angle to ensure a compromise between the required productivity and the accuracy of the gear profile.
Analysis of Simply Supported Laminated Composite Plate by Semi Analytical and Finite Element Method for Different Orientation Angles
Authors: Arnab Choudhury , Samar Chandra , Susenjit Sarkar , Mintu Karmakar
Published: November 2023

Deflection of simply supported laminated composite plate under transverse load is found out by semi-analytical method (Classical Lamination Theory) and the results are compared with Finite element method using FEA software ANSYS. The equations developed by classical lamination theory for symmetric angle ply and cross ply laminated plate are solved by Navier and Rayleigh-Ritz method. The efficiency of Navier and Rayleigh-Ritz method in solving the problems of symmetric angle ply and cross ply laminated plate are investigated by comparing their results with ANSYS. Percentage error of the results from finite element method with Navier and Rayleigh-Ritz methods are studied and compared. The model is extended to study the effect of orientation angle, number of lamina and length to thickness ratio on the deflection of simply supported composite plates for symmetric angle ply plates of stacking sequence (orientation angle) of [+θ/− θ]s . From the discussion, it is found that the percentage error depends on the variables: number of lamina, thickness of each lamina, orientation angle and mesh size. The significance of these variables in reducing the percentage error is studied by statistical tool: ANOVA and the relationship between these variables are established by regression equation. Statistical analysis is conducted by testing their significance at the 5% significance level. The comparative study and analysis of the percentage errors of the semi-analytical methods with finite element methods in solving the problem of laminated composite plates is essential to study the degree of approximation in the results.
Simulation of Energy Conversion Processes in Linear Electromagnetic Motors with Through Axial Channel
Authors: Kargin Vitaliy , Usanov Konstantin , Moiseev Aleksey , Volgin Andrey , Chetverikov Evgeniy , Lagina Ludmila
Published: November 2023

Modeling of workflows of electromechanical systems with linear electromagnetic motors (LEMM) is an integral tool for their improvement in relation to discrete operations, processes and technologies of the agricultural industry or the processing of agricultural products. At the same time, the use of typical application packages for the construction and analysis of low-cost virtual models seems to be especially convenient and relevant. (The purpose of the study) To evaluate the influence of the characteristics of a hollow (non-magnetic) axial channel in the LEMM magnetic system on the allowable changes in the output indicators of the electromechanical system by virtual simulation. (Materials and Methods) Using the specialized software COMSOL Multiphysics 4.3b (CM) Matlab, Simulink, a model of an armored cylindrical two-gap LEMM with a variable geometry of a hollow (air) axial channel, which determines the characteristics of the motor magnetic system and its output energy indicators, is obtained and analyzed. (Results and discussion) Based on the results of the analysis of the inductance matrices formed by the CM simulation, the field distribution in the LEMM magnetic system is presented and the most stressed, in terms of induction values, sections of the magnetic circuit that contribute to the deterioration of the motor properties are identified. Integral indicators are given that determine the quantitative estimates of the permissible decrease in the output characteristics of a LEMM with an axial channel in a magnetic system. (Conclusions) By comparative analysis of the output static characteristics of the motor, the range of ratios of the annular section of the ferromagnetic - non-magnetic (axial channel) parts of the LEMM cylindrical armature is substantiated, for which an acceptable decrease in the output mechanical parameters of the system is provided.
The Model of Interconnected Pipes in the Investigation of Dynamic Stability of Carbon Nanotubes Embedded in an Elastic Medium
Authors: Lolov Dimitar , Lilkova-Markova Svetlana
Published: November 2023

The dynamic stability of an interconnected single-walled carbon nanotube is investigated on the basis of the Euler-beam model and with the employment of the spectral Galerkin method. The tubes under investigation are assumed hinged at its both ends and are embedded in an elastic medium. In order to investigate the effect of the surrounding elastic medium on the dynamic stability of the pipe the Pasternak elastic medium is introduced. The critical velocity is calculated for different stiffness of the elastic medium and different density of the conveyed fluid.
Material Research for the Production of Outdoor and Kitchen Knife Blades at Low Costs
Authors: Bruçi Mirlind , Bajrami Xhevahir , Bruçi Ari , Bruqi Qendrim
Published: November 2023

In today’s modern times, consumers have changed the idea of shopping. They want a functional product with performance at a low price. On the other hand, the consumer demands a variety of products in the market in terms of dimensions and usability. As the requirements are different, the engineers are challenged with different tasks related to the design of production systems, process design, organization and marketing. In this research, we will present some of the special materials used for knife blades manufactured worldwide. The proper selection of materials and their thickness significantly affects the production price, processing method, corrosion resistance, mass. Special emphasis in the work is devoted to the design of the knife blade for household requirements, model ARIA22, made of EN 1.4028 stainless steel material. It describes the work of the die block, blanking punch, the necessary energy parameters for the realization of the processing process with piercing and punching, as well as the profitability of the production.
Process Parameters and Conditions of Intensified Composting of Kitchen Biowaste
Authors: Sluková Melissa , Dzianik František
Published: November 2023

Composting is one of the efficient and effective methods of disposal and recovery of biodegradable waste. A favorable and intensified course of the composting process can be achieved by optimal composition of the composted material (moisture, content of organic substances and nutrients, C:N ratio, etc.), and also by optimizing the conditions under which composting takes place (temperature, pH, structure and aeration of the material, etc.). The paper contains a methodology for calculating the composition of composted material and also a methodology for solving the forced aeration process of composted material. More specifically, some process parameters of the intensified composting of a defined amount of kitchen biowaste, taking place in closed composting reactors, are presented and analyzed. Using the material balance of the composting process, the connections between the desired composition of the matured compost, the composition of the composted material and the conditions under which the composting takes place are pointed out. The specified connections enable the composting process to be optimized appropriately.
Meshing Characteristics of Profile Shifted Cylindrical Quasi-Involute Arc-Tooth-Trace Gears. Part 2. Calculation Results
Authors: Tkach Pavlo , Reviakina Olga , Kryvosheia Anatolii , Melnyk Volodymyr , Ustynenko Oleksandr , Protasov Roman
Published: November 2023

Based on the results obtained in the previous research, the values of meshing characteristics of profile shifted quasi-involute arc-tooth-trace gears is calculated. The influence of the values of profile shift coefficient and the angle of tooth trace on meshing characteristic distribution on the tooth flank surface along tooth trace is defined. The results can be used for design of profile shifted quasi-involute arc-tooth-trace gears, cut by Gleason-type cutters with different profile angle value.
Gesundheitsdaten: Von Nachbarländern lernen
Authors: Fischer Martin , Jürges Hendrik , Mangelsdorf Stefan , Reif Simon , Ullrich Hannes , Wuppermann Amelie
Published: November 2023

The access and use of administrative health data in Germany is limited by several factors. Due to the large number and heterogeneity of data holders, data are usually only available in fragmented form, and access is often regulated in a non-transparent manner. Linkage of health data with other data sources is hardly possible for legal and logistic reasons. These limitations directly affect the ability of researchers in Germany to supply evidence-based policy advice and to conduct fundamental research. Against the backdrop of neighbouring countries, such as Denmark or Austria, giving access to and allowing the linkage of individual administrative data, we propose several measures to improve access to health data in Germany.
Water Quality of the Meia Ponte River in the Catchment Region for Public Supply
Authors: Carmo Júlia Gomes , Hoffmann Nora Katia Saavedra del Aguila
Published: November 2023

Purpose: This research aimed to evaluate the physical-chemical and microbiological quality of water in a certain region of the Meia Ponte river basin, through monitoring water quality parameters, and also to verify the interference of the rainy season in water treatment.
 
Methods: Physicochemical and microbiological analyzes were carried out, evaluating the following parameters: pH, turbidity, color, temperature, total coliforms and Escherichia coli. The location chosen to carry out the collections was the water collection point for public supply from the Meia Ponte River.
 
Results and conclusion: The physicochemical results obtained in this work were in accordance with CONAMA Resolution 357/2005 of the Ministry of the Environment; as for the microbiological results, which are based on CONAMA 374/2000, only the verified values for Escherichia coli are in accordance with the resolution.
 
Research implications: The conservation of water sources is extremely important to ensure that the quality and quantity of treated water are in satisfactory condition to meet the population's demand. The quality of the water will depend on the activities that are carried out around the river basin.
 
Originality/value: Verification of the interference of seasonality typical of the region, in the quality of water for public supply.
Strategic restructuring of the Human Resources sector in a Junior Enterprise
Authors: Gushiken Thais Tiemi , Callefi Jéssica Syrio , E Silva Leonardo Martins , Enami Lorena Mazia , Guedes Karoline , Dos Reis Beatriz Lavezo
Published: November 2023

Objective: The objective of this paper is to present the restructuring of the Human Resources Sector of a Junior Enterprise, focusing on both the members and the organization.
 
Theoretical structure: The PDCA tool was applied to evaluate the main areas for improvement and manage structural changes in the human resources sector.
 
Method: For the study, the action research methodology was used. Documents of the enterprise's processes and results of surveys with members were used in data collection.
 
Results and conclusion: As practical results, it was observed that the action plans were effective, as the members continued with the enterprise the following year, progressing to a leading position, whether in management or a directory.
 
Research implications : In theoretical terms, this study advances by bringing the analysis of the PDCA cycle to the Human Resources sector, a subject little discussed in the literature.
 
Originality/value: This study presents the remodeling of the structure of a junior enterprise, relating theories of Human Resources and Process Analysis.
Orta Anadolu Tarım Havzasında ÇMVA Sistemine Göre Tarım İşletmelerinin Standart Faaliyet Sonuçlarının Tespiti
Authors: Kanat Zeynep , Çelik Yusuf
Published: November 2023

Çalışmanın amacı, Orta Anadolu Tarım Havzasında Çiftlik Muhasebe Veri Ağı (ÇMVA) sistemine göre tarım işletmelerinin tiplerini, ekonomik büyüklük sınıflarını ve standart faaliyet sonuçlarını belirlemektir. Araştırma alanı Orta Anadolu Havzasında yer alan 7 ili kapsamaktadır. Bu illeri temsil edecek 9 ilçe gayeli örnekleme yöntemine göre belirlenmiştir. Belirlenen ilçelerde ana popülasyonu oluşturan tarım işletmelerinden, örnek işletme sayısı,  tabakalı tesadüfi örnekleme yöntemine göre %5 hata payı ile %99 güven sınırları içerisinde 292 olarak hesaplanmıştır. Örnek işletmelerden anket yöntemi ile toplanan veriler çalışmanın ana materyalini oluşturmuştur. Araştırma verileri 2016-2017 üretim dönemini kapsamaktadır. Ayrıca çalışmada ikincil verilerden de yararlanılmıştır. Araştırma sonuçlarına göre incelenen tarım işletmelerinin 4 farklı işletme tipinde olduğu belirlenmiştir. Bunlar uzmanlaşmış tarla ürünleri yetiştiriciliği, uzmanlaşmış otlayan hayvan yetiştiriciliği, karışık bitkisel ürün ve hayvan yetiştiriciliği ile uzmanlaşmış bahçecilik yapan işletme tipleridir. İşletme tiplerinin standart gelir kriterlerine göre sonuçları incelendiğinde; işletme brüt kar oranı uzmanlaşmış tarla ürünleri yetiştiriciliği yapan işletme tipinde %65,80, uzmanlaşmış otlayan hayvan yetiştiriciliği yapan işletmelerde %78,80, karışık bitkisel ürün ve hayvan yetiştiriciliği yapan işletmelerde %70,85 ve uzmanlaşmış bahçecilik yapan işletmelerde %74,23’dür. İşletme net katma değer oranı uzmanlaşmış tarla ürünleri yetiştiriciliği yapan işletme tipinde %64,72, uzmanlaşmış otlayan hayvan yetiştiriciliği yapan işletmelerde %73,48, karışık bitkisel ürün ve hayvan yetiştiriciliği yapan işletmelerde %66,84 ve uzmanlaşmış bahçecilik yapan işletmelerde %65,42’dir. Net çiftlik geliri oranı uzmanlaşmış tarla ürünleri yetiştiriciliği yapan işletmelerde %64,72, uzmanlaşmış otlayan hayvan yetiştiriciliği yapan işletmelerde %73,48, karışık bitkisel ürün ve hayvan yetiştiriciliği yapan işletmelerde %66,84 ve uzmanlaşmış bahçecilik yapan işletmelerde %65,42’dir. İşletme brüt karı, işletme net katma değeri ve net çiftlik geliri kriterleri açısından ilgili dönemde rekabet üstünlüğü olan işletme tipinin uzmanlaşmış otlayan hayvan yetiştiriciliği yapan işletmelerin olduğu tespit edilmiştir.
Avokado (Persea americana Mill.) Çekirdeğinden Renk Maddesinin Ekstraksiyonu ve Karakterizasyonu
Authors: Şanlıdere Aloğlu Hatice , Kaynarca Gülce Bedis , Uran Harun
Published: November 2023

Aavokado çekirdeğinden üç farklı çözgen (etanol, metanol ve saf su) ve iki farklı su banyosu (ultrasonik ve klasik) kullanılarak renk maddesi elde edilmeye çalışılmış ve liyofilize renk maddeleri verim, su aktivitesi, renk, çözünürlük süresi ve bazı fonksiyonel özellikler bakımından karşılaştırılmıştır. Araştırma sonucunda ultrasonik su banyosunun renk maddesi verimini etkilemediği fakat çözgenlerin etkilediği sonucuna varılmıştır. En yüksek % verim (~16) etanol çözgeninde bulunmuştur. Etanol ve saf su kullanılan örneklerde kırmızılık (a*) değerleri sarılık (b*) değerlerinden daha yüksek bulunurken metanol ile ekstrakte edilen renk maddelerinde ise b* değerleri daha yüksek bulunmuştur. Renk maddelerinin L*, a* ve b* değerleri üzerine ultrasonik su banyosu kullanımının önemli bir etkisinin olmadığı gözlenmiştir. Klasik su banyosu kullanılarak elde edilen örnekler diğer gruplara göre daha hızlı çözünürken en hızlı çözünmenin saf su kullanılarak ekstrakte edilen örneklerde olduğu bulunmuştur. Toplam fenolik madde içerikleri 184,74 ile 308,04 mg g-1 gallik asit eşdeğeri arasındadır. Toz renk maddelerinin IC50, TEACABTS ve CUPRAC değerleri sırasıyla 10,81-22,47 µg g-1, 1081,31-6011,41 µmol troloks g-1 ve 1680,33-3185,74 mM troloks aralığında bulunmuştur. Fenolik içerik ve antioksidan aktivite gibi fonksiyonel özellikler bakımından incelediğimizde en yüksek değerlerin ultrasonik su banyosunda metanol kullanılarak ekstrakte edilen renk maddelerinde olduğu sonucuna varılmıştır. Ayrıca renk maddesinde 6-14 pH değerleri arasında turuncu rengin hakim olduğu tespit edilmiştir. Bu bulgular neticesinde üretimi oldukça kolay olan bu renk maddesinin sarı-kiremit kırmızısı renk tonlarında fonksiyonel bir doğal renk maddesi olarak kullanılabileceği sonucuna varılmıştır.
Tuz Stresi Altında Marul Bitkisinin Gelişimi ve Bazı Besin Maddesi İçerikleri Üzerine Organik Materyallerin Etkisi
Authors: Tarakçıoğlu Ceyhan
Published: November 2023

Bu çalışmada, farklı organik materyallerin tuz stresi altında yetiştirilen İceberg ve Kıvırcık marul bitkisinin gelişimi, bazı besin maddesi içerikleri ve stres tolerans parametreleri üzerine etkisi araştırılmıştır. Toprağa vermikompost, fındık zuruf kompostu, düşük ve yüksek kaliteli leonardit bazlı organik toprak düzenleyicileri %2 oranında uygulanmıştır. Tuzluluk stresi üç seviyede (0, 20 ve 40 mM NaCl) gerçekleştirilmiştir. Deneme tesadüf parselleri deneme desenine göre 3 tekerrürlü olarak serada yürütülmüştür. Tuzlu koşullar altında bitkilerin kuru ağırlığı, membran geçirgenliği, nitrat içeriği, K/Na ile Ca/Na oranları düzenli olarak azalırken; prolin, Na, Cl ve Ca içerikleri artmıştır. Stres tolerans parametrelerine göre değerlendirildiğinde, bitkilerin membran geçirgenliği, prolin, nitrat, K, Na, Ca içerikleri ve Ca/Na oranlarının fındık zuruf kompostu uygulamasında, yaş-kuru ağırlık ve Cl içeriklerinin vermikompost uygulamasında en iyi olduğu tespit edilmiştir. Sonuçlarımız fındık zuruf kompostu ve vermikompostun leonardite kıyasla tuzluluk stresinin etkilerini azalttığını göstermektedir.
Yaygın Olarak Tüketilen Helianthus tuberosus, Zingiber officinale ve Raphanus sativus var. niger Bitkilerinde in Vitro Antioksidan Enzim Kapasitesi ve Oksidatif Stres Düzeylerinin Belirlenmesi
Authors: Özyurt Mehmet , Çitil Demirci Büşra , Belge Kurutaş Ergül , Demirhan İlter
Published: November 2023

Günümüzde kullanılan birçok terapötik ilaç kaynağını şifalı bitkilere borçludur. Her bitkinin kendine özgü aktivitesi ve biyokimyasal profili vardır. Bu çalışmada günlük hayatta oldukça iyi bilinen üç farklı bitki türü; Helianthus tuberosus, Zingiber officinale ve Raphanus sativus var. niger kullanıldı. İlk defa yapılan bu çalışmada antioksidan aktivite tayini sınırlı olan üç farklı bitki seçilmiş ve aktioksidan kapasiteleri karşılaştırılmıştır. H. tuberosus, Z. officinale ve R. sativus var. niger bitkilerinin gövde kısımları %1.15 potasyum klor ile homojenize edilerek ekstraklar hazırlandı. Daha sonra antioksidan enzim aktiviteleri katalaz (CAT) ve süperoksit dismutaz (SOD) ile oksidatif stres belirteci olan malondialdehit (MDA) düzeyleri spektrofotometrik yöntemlerle saptandı. Araştırma sonucunda en yüksek SOD enzim aktivitesi R. sativus var. niger bitkisinde görülürken, en yüksek CAT enzim aktivitesi ise Z. officinale bitkisinde gözlendi. Öte yandan yer elması bitki ekstraktında MDA düzeyi en yüksek iken, en düşük MDA düzeyi ise Z. officinale bitkisinde gözlenmiştir.
Foreign Policy Approaches in the US Political Parties Platforms in the XXI Century: Similarities and Differences
Authors: Sukhoverkhov K. K.
Published: November 2023

The article examines such a phenomenon of American politics as the party platform. The article reflects its features in comparison with European interpretations of the concept of “party program”. The author’s definition of the concept “party platform” is given, which is based on a consideration of the definitions of domestic and foreign policy researchers of the concept “party program”. The article focuses on the foreign policy parts of the platforms of the main US political parties. The ideological approaches and conditions that influence the formation of the foreign policy part of the party platform are considered (from factors such as political expediency to the personal views of US presidential candidates). An example of a comparative analysis of the foreign policy parts of the platforms of the US Republican and Democratic parties is given. Based on a comparative analysis of the foreign policy parts of the platforms of the main US political parties, the author proposes his own methodology for determining the similarities and differences of party platforms. This methodology allowed the author of the article to plot the similarities and differences in the foreign policy approaches of the US Republican and Democratic parties from 2000 to 2020. The comparative analysis carried out by the author allows us to say that the platforms of the main US political parties can be used to analyze the foreign policy course of different US administrations and make forecasts on Washington’s foreign policy.
نـظـريـة الـوسـاطـة الـتـحـويـلـيـة
Authors: Ali Hussen Amjad
Published: November 2023

تعتبر نظرية الوساطة التحويلية إحدى النظريات الحديثة في حقل دراسات السلام والنزاع، تم صياغتها لأول مرة من قبل (جوزيف فولغر) و(روبرت باروخ بوش) في كتابهما (وعد الوساطة) عام 1994، تستند هذه النظرية على تغيير العلاقات فيما بين الأطراف المتنازعة عبر التفاعل البنّاء بالإعتماد على عنصري التمكين والإعتراف، ويتم فيها إستغلال القوة الإيجابية للنزاع، أي جعل النزاع كنقطة إيجابية بنّاءة بدلاً من حالتها السلبية المدمرة، من جانب آخر أن هدف النظرية ليس حل أو تسوية النزاع، كما هو الحال عليه في الوساطة التسهيلية أو السردية أو التقيمية بل تذهب أبعد من ذلك بإتجاه تحقيق الغرض التحويلي في العلاقات وتغييرها من حالتها السلبية إلى الحالة الإيجابية، بالإضافة إلى محدودية دور الوسيط التحويلي وبشكل خاص فيما يتعلق بإتخاذ القرارات المتعلقة بالقضية المتنازع عليها بين أطراف النزاع فوجوده هو مساعدة هذه الأطراف وتوجيههم وتشجيعهم نحو تغيير العلاقات عبر التفاعل والحوار بالإعتماد على الأمور الكامنة غير الظاهرة التي تؤثر إيجاباً على عملية الوساطة وتحقيق الهدف التحويلي منها.