bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of the Cutting Speed on the Surface Roughness When Ball-End Milling
Authors: Mgherony Abdulwahab , Mikó Balázs
Published: February 2022

Using freeform surfaces in advanced industries is becoming ubiquitous and widely applied in many fields such as the aerospace, automobile, consumer products as well as the die and mold industries. The ball-end mill is mainly used in machining such surfaces. However, the manufacture of this type of surface is still somewhat difficult when machining using a 3D ball-end milling machine. Due to changes in the surface inclination, the working diameter of the tool also changes. Variations in the working diameter leads to an unstable cutting speed, affecting the roughness homogeneity of the smoothed surface. This article discusses the effect of changing the cutting speed on the surface roughness in the case of concave and convex surfaces.
Experimental Implementation of a Resource-Constrained Multi-Project Scheduling Problem Solver
Authors: Mihály Krisztián , Kulcsárné Forrai Mónika , Kulcsár Gyula
Published: February 2022

Nowadays, project-based planning and execution are becoming more and more important in product life cycles; from the conceptual idea and its design to manufacturing and maintenance. Companies execute several projects simultaneously and these projects usually share the same resources resulting in conflicting situations. Since all projects have different requirements, constraints and goals that need to be achieved, the creation of a company-wide optimal schedule is difficult if all the aspects of each project are to be taken into consideration. Our paper presents an extended model and a scheduling problem-solving approach for resource-constrained, multi-project scheduling problems. In addition to defining the theoretical solution, its experimental implementation and results are presented.
Research on and Practice of Additive Manufacturing Technologies
Authors: Ficzere Péter
Published: February 2022

Today, additive manufacturing technologies are becoming increasingly popular. In order to take advantage of the opportunities offered by these new technologies, a different way of thinking at the design stage needs to be adopted. This new design thinking must be introduced into engineering education. In order to achieve this at the right level, practical experience is needed in parallel with a theoretical background on the technologies. This paper provides a brief overview of my research and results in the field of additive manufacturing.
Building a Reusable Data Model to Support Systematic Layout Planning with Discrete Event Simulation of Flexible Manufacturing Systems
Authors: Molnár Zsolt , Tamás Péter , Illés Béla
Published: February 2022

Manufacturing has undergone a greater change in recent years than it has over almost the entire past century. Due to the variety of products, shortening delivery times and changing customer habits, the COVID-19 pandemic has demanded greater flexibility from manufacturing companies than ever before. One of the fundamental parts of manufacturing flexibility is the design of manufacturing layouts, which has so far not followed automation and methodological developments with regard to technological areas of manufacturing. In this article, a new method for supporting traditional factory design methods with digital manufacturing tools is introduced.
Lifestyle advice for hypertension or diabetes: trend analysis from 2002 to 2017 in England
Authors: Henry John A , Jebb Susan A , Aveyard Paul , Garriga Cesar , Hippisley-Cox Julia , Piernas Carmen
Published: February 2022

Background

Guidelines recommend that GPs give patients lifestyle advice to manage hypertension and diabetes. Increasing evidence shows that this is an effective and practical treatment for these conditions, but it is unclear whether GPs offer this support.

Aim

To investigate trends in the percentage of patients with hypertension/diabetes receiving lifestyle advice versus medication.

Design and setting

This was a trend analysis of self-reported data from the annual Health Survey for England (HSE) (2003–2017) and GP-recorded data from the QResearch database (2002–2016).

Method

The percentage of patients with hypertension or diabetes who received lifestyle advice or medication was calculated in each year. Associations between likelihood of receiving lifestyle advice and characteristics were assessed using multivariable logistic regression.

Results

The percentage of patients receiving lifestyle advice was consistently lower than those receiving medication in both self-reported and medical records. There was consistent evidence of increasing trends in the percentage of patients with hypertension receiving lifestyle advice (HSE 13.8% to 20.1%; Ptrend<0.001; QResearch 11.0% to 22.7%; Ptrend<0.001). For diabetes, there was a non-significant decline in self-reported receipt of lifestyle advice (45.0% to 27.9%; Ptrend = 0.111) and a significant increase in medically recorded delivery of this advice (20.7% to 40.5%; Ptrend<0.001). Patients with hypertension who were overweight or obese were more likely to receive lifestyle advice than those of a healthy weight, whereas the opposite was true for diabetes.

Conclusion

Only a minority of patients with diabetes or hypertension report receiving lifestyle advice or have this recorded in their medical records. Interventions beyond guidelines are needed to increase the delivery of behavioural interventions to treat these conditions.
A utilização de modelos multi-físicos na simulação do processo de carbonatação em estruturas de concreto e uma breve aplicação / An overview of multi-physics modeling to simulate the carbonation process in concrete and a simple application
Authors: Oliveira Mateus Antônio Nogueira , Souza José Victor Brasil de , Cunha Rodrigo Rodrigues da , Machado Fábio Augusto Silva , Munk Carolina Bela de Carvalho
Published: February 2022

A previsão da vida útil para uma estrutura de concreto pode ser considerada um aspecto essencial, uma vez que muitas estruturas apresentam problemas e o uso da estrutura pode ser inviável. A proteção passiva feita pela cobertura de concreto é fundamental, no entanto, ocorre um fenômeno natural no concreto em contato com a atmosfera, a carbonatação. A carbonatação leva a uma descalcificação progressiva da pasta de cimento hidratada. Esse fenômeno ocorre quando a concentração de cálcio diminui na água dos poros devido ao consumo de cálcio induzido pela reação de carbonatação. Este artigo apresenta a descrição de modelos numéricos utilizados por diferentes autores para simular o processo de carbonatação usando equações multi-físicas para concreto. São descritos modelos com diferentes abordagens. Considerando as características de cada modelo, uma discussão integrada é feita juntamente a uma análise paramétrica simples da evolução do fenômeno. Considerando o cenário atual no Brasil, este estudo pode ser considerado relevante, uma vez que várias estruturas apresentam problemas vitais associados ao processo de carbonatação.
Multilayer 3D Chiral Folding Polymers and Their Asymmetric Catalytic Assembly
Authors: Tang Yao , Jin Shengzhou , Zhang Sai , Wu Guan-Zhao , Wang Jia-Yin , Xu Ting , Wang Yu , Unruh Daniel , Surowiec Kazimierz , Ma Yanzhang , Wang Shiren , Katz Courtney , Liang Hongjun , Li Yunze , Cong Weilong , Li Guigen
Published: February 2022

A novel class of polymers and oligomers of chiral folding chirality has been designed and synthesized, showing structurally compacted triple-column/multiple-layer frameworks. Both uniformed and differentiated aromatic chromophoric units were successfully constructed between naphthyl piers of this framework. Screening monomers, catalysts, and catalytic systems led to the success of asymmetric catalytic Suzuki-Miyaura polycouplings. Enantio- and diastereochemistry were unambiguously determined by X-ray structural analysis and concurrently by comparison with a similar asymmetric induction by the same catalyst in the asymmetric synthesis of a chiral three-layered product. The resulting chiral polymers exhibit intense fluorescence activity in a solid form and solution under specific wavelength irradiation.
Contra el estancamiento;
Authors: Alberdi José Maria , Pagazas Margarita Roza , Bonucci Nora , Serra Flor
Published: February 2022

Ponencia marco de la Federación Argentina de Unidades Académicas de Trabajo Social, esta cartografía latu sensu fue presentada en Valparaíso (Chile) en torno al Congreso Latinoamericano de Escuelas de Trabajo Social a finales del 1997. Nos permitieron recuperar parte de la exposición como manera de archivarla para alimentar futuros debates
Editorial Edición N°10
Authors: Cátedra Paralela Consejo Editorial
Published: February 2022

Con gran orgullo estamos celebrando la aparición del número 10 de nuestra Revista. Desde el año 2005 nuestra intención ha sido con- tribuir a gestar un espacio público de debate que nos permita crecer como colectivo profesional, sometiendo los saberes y las prácticas del Trabajo Social a un constante ejercicio de revisión crítica, esto es, una reflexión crítica y consciente sobre lo que se hace y lo que se dice en torno a las problemáticas en las cuales interviene nuestra profesión.

Estamos celebrando y por ello es esta una edición de lujo, en la que tenemos la satisfacción de presentar un Dossier de artículos es- peciales de autoría de prestigiosos/as docentes e investigadores/as de nuestra casa de estudios y de otras unidades académicas del país.

Estamos celebrando diez años de construcción colectiva, de traba- jo arduo y comprometido. Estamos celebrando el orgullo de contar con una publicación propia, de calidad y en permanente crecimien- to, fundamentalmente porque constituye una apuesta, en el sentido fuerte de la palabra. Apuesta por una actividad reflexiva, por un tra- bajo teórico que es un desafío pero es, más que nada, una exigencia ético-profesional del Trabajo Social o, como diría Tere Matus, una urgencia política para la renovación de las prácticas sociales. Apuesta que se basa en la convicción de que un horizonte más justo no sólo es posible sino, sobre todo, necesario.
gestión de la política de asistencia y promoción social en Rosario (2003-2011)
Authors: Garma María Eugenia , Castro Rojas H. Ignacio
Published: February 2022

En el presente escrito se rastrean las concepciones generales y las propuestas de reforma de los estados locales que influenciaron en las dinámicas de transformación llevadas adelante por las administraciones locales desde 1995 en adelante. El foco está puesto en la gestión de las políticas sociales en general y de la política de asistencia y promoción social en particular en las dos gestiones del intendente Miguel Lifchitz en el Municipio de Rosario entre 2003 y 2011. Estos dos gobiernos se analizan a partir de fuentes documentales y de entrevistas a funcionarios/as y trabajadores/as del área de la asistencia y promoción social
La responsabilidad social empresarial como estrategia de reproducción social
Authors: Cañizares Brian
Published: February 2022

Nuestra presentación pretende aportar elementos de reflexión crítica respecto de las mediaciones activas y operantes en la dinámica de un tipo particular de respuesta a la “cuestión social” estructurado particularmente en función de programas de Responsabilidad Social Empresarial (en adelante RSE). A tal fin, se presentan como matriz de análisis ideas esenciales provenientes de las obras de Marx y de Lukács, intentando pensar cómo categorías como trabajo, trabajo abstracto, teleología, complejos sociales aportan a la comprensión del mencionado fenómeno a través de su problematización en cuanto estrategia que halla su base de sustento en el proceso de reestructuración del capital desde los años 70, guardando relación con un determinado escenario de correlación de fuerzas que implica para las empresas, la necesidad de ganar legitimidad. Asimismo, se presentan y problematizan las funciones de la RSE, en tanto comprendida como estrategia de transmisión de ideología en el marco de la reproducción espiritual de las relaciones sociales que sustenta la división social del trabajo en la sociedad de clases. Se señalan asimismo aspectos problemáticos como disparadores de debate.
saqueos de 2001 en Argentina
Authors: Barrera Analé
Published: February 2022

En el presente artículo, nos proponemos analizar las investigaciones que Javier Auyero y Nicolás Iñigo Carrera realizan en torno a los saqueos que tuvieron lugar en la Argentina en el marco de la crisis de 2001. Los autores, desde perspectivas teóricas diferentes, plantean una caracterización de los hechos, identifican y definen a los sujetos protagonistas, entendiendo a estos hechos en el marco de un determinado ciclo de protesta social. De esta manera, intentaremos exponer los aspectos centrales de sus trabajos y, a la vez, plantear ciertos elementos para su análisis. En este sentido, el objetivo no será plantear una comparación “aséptica” de los aportes de cada uno, sino identificar sus conceptualizaciones y sopesar los aportes que hacen al estudio de la protesta social en Argentina, particularmente a partir del aumento de la pobreza en el contexto socio histórico de finales de siglo XX y comienzos del XXI.
Hacia la Construcción de un Trabajo Social Crítico Latinomericano: Algunos Elementos para su Problematización
Authors: Marro Katia
Published: February 2022

El siguiente trabajo caracteriza primeramente, el significado y los fundamentos sociohistóricos del TS, analizando diversas determinaciones de la práctica profesional importantes para la reflexión en torno de sus límites y posibilidades, dando especial interés a algunas de sus particularidades que nos llevan a discutir en torno al problema de la «especificidad», a la dimensión política del ejercicio profesional, su relación con la militancia, etc. Posteriormente, nos centramos en algunos ejes analíticos que nos posibiliten pensar en el proyecto ético-político como posibilidad de incidir críticamente en la configuración de una dirección social alternativa de la práctica profesional. Este trabajo pretende presentar apenas algunas coordenadas teórico-conceptuales generales para el debate que, sin pretensiones de agotarlo, consideramos fundamentales.
ética como orientación de la práxis en «discapacidad»
Authors: Contino Martín
Published: February 2022

En el presente trabajo se analizan algunas situaciones relacionadas con lo que se entiende como el campo de la discapacidad, caracterizadas por su permanencia bajo la lógica del mercado. Se propone a partir de ello pensar otras posibilidades para una praxis, marcando dos posiciones en las que se podría ubicar el profesional: una postura ontológica que concibe a los sujetos como «personas con discapacidad» (acorde al Modelo Médico-Individual); y una perspectiva ética que los explicita como «personas discapacitadas» (relacionada con el Modelo Social). Este último posicionamiento profesional se plantea como una forma de abordaje que facilitaría elaborar estrategias de intervención en una triple dimensión: en lo que respecta al aspecto subjetivo de las personas discapacitadas; en lo que tiene que ver con las barreras limitantes que presenta el entorno inmediato; y, por último, en aquello que causa, sostiene y reproduce estas situaciones discapacitantes: los mecanismos de poder que producen una situación de opresión, dependencia y desempoderamiento en este grupo de personas.
relaciones peligrosas entre el “tercer sector” y la práctica supervisada en Trabajo Social:
Authors: Duarte Janaina lopes do Nascimento
Published: February 2022

La protección social brasileña, principalmente a partir de 1990, es determinada por la mayor visibilidad y actuación de las organizaciones del “Tercer Sector”, asumiendo gran responsabilidad en el enfrentamiento de las expresiones de la “cuestión social”, con graves repercusiones para las políticas sociales brasileñas: precarización, privatización, filantropización. Sin embargo, este contexto repercute de forma contundente en la formación y en el ejercicio profesional del trabajador social, imponiéndole retos hacia la actuación coherente con la complejidad actual del capitalismo: crítica e innovadora, en la dirección social del Proyecto Ético Político Profesional del Trabajo Social brasileño. El objetivo de este ensayo es contribuir a la reflexión crítica sobre las prácticas profesionales, como parte de la formación profesional en Trabajo Social, realizadas en el “Tercer Sector”, identificando algunos retos al Proyecto Ético-Político Profesional de los trabajadores sociales brasileños. En esta dirección, algunas premisas son fundamentales para enfrentar los retos y construir colectivamente nuevas posibilidades de actuación: 1) analizar la compleja realidad a partir de un perspectiva de totalidad, contradicción y lucha de clase; 2) ultrapasar las apariencias del cotidiano profesional, particularizando el espacio del “Tercer Sector”; y 3) articularse políticamente.
Miedo a los niños:
Authors: Bright Mariana
Published: February 2022

El hombre del Tercer Milenio ha sido condenado al miedo. Todo su mundo se ha tornado inestable, inseguro y plagado de amenazas que surgen de su propia vida cotidiana. Su aire, su agua, su alimento, sus semejantes son fuente de riesgos. El presente artículo se propone mostrar cómo la niñez es percibida hoy como amenazante y analizar aquellos dispositivos biopolíticos en juego para protegerse de ella.
Clásico de clásicos: literatura, arte y mitología deportiva
Authors: Zangara Juan Pablo
Published: February 2022

Este trabajo de Zangara (o esta reunión de trabajos) recorre la idea de lo clásico remando en un barco en el que el deporte –pasión de Zangara– corrobora, una vez más, que es un pasaporte posible para decodificar bastante humanidad. Zangara indaga y piensa sobre fútbol y sobre boxeo, sobre toros y sobre personas. Pero, en especial, indaga y piensa sobre otro once potente que le permite retratar la cancha de sociedades que fueron y de sociedades que son. Ahí van esos once (once que podrían ser más): los mitos, los héroes, la épica, lo sagrado, el primitivismo, la eternidad, la naturalización, lo sobrenatural, la carnalidad, la civilización y (para completar un binomio de amplias resonancias argentinas) la barbarie. (del prólogo de Ariel Scher)
Comportamiento cromatográfico de aminas en columnas de jabones metálicos
Authors:   , Castells Reynaldo César
Published: February 2022

Plan de trabajo - Introducción El uso de compuestos metálicos como fases estacionarias Posibilidad de aplicación de la cromatografía de gases al cálculo de constantes de estabilidad de complejos Interacciones amina-ión metálico Objeto de este trabajo - Parte experimental Preparación y análisis de los estereatos metálicos Las aminas estudiadas y su análisis Equipo empleado Ensayos preliminares: la búsqueda de un soporte y un disolvente que permitieran la obtención de picos definidos y simétricos Columnas empleadas y preparación. Criterios de selección Técnica utilizada en la medición de los volúmenes de retención específicos, y condiciones de trabajo para cada columna - Presentación y discusión de resultados El efecto del ión metálico Influencia de la concentración del estereato Comparación del comportamiento para los distintos estearatos en función de temperatura y concentración - Conclusiones - Bibliografía
Pengaruh Keaktifan Belajar, Kemandirian Dan Kreativitas Terhadap Prestasi Belajar Matematika Siswa Kelas IX SMP
Authors: Achmad Aisyah Hariyani , Dinar Muhammad , Bernard B.
Published: February 2022

Penelitian ini adalah penelitian ex-post facto yang bertujuan untuk mengetahui adanya pengaruh antara keaktifan belajar, kemandirian dan kreativitas terhadap prestasi belajar matematika siswa kelas IX SMP. Sampel dipilih secara acak dari populasi sebanyak tiga kelas dari sembilan kelas. Pengambilan data dilakukan dengan menggunakan angket dan tes prestasi belajar. Data tersebut dianalisis secara deskriptif dan inferensial. Hasil penelitian secara deskriptif diperoleh (1) Prestasi belajar matematika siswa berada pada kategori tinggi, (2) Keaktifan belajar berada pada kategori tinggi, (3) Kemandirian belajar berada pada kategori tinggi, (4) Kreativitas belajar berada pada kategori rendah. Secara inferensial diperoleh (1) Terdapat pengaruh antara keaktifan belajar, kemandirian belajar dan kreativitas belajar secara bersama-sama terhadap prestasi belajar matematika siswa, (2) Terdapat pengaruh signifikan antara keaktifan belajar terhadap prestasi belajar belajar matematika siswa dengan memperhatikan kemandirian belajar dan kreativitas belajar kelas, (3) Terdapat pengaruh signifikan antara kemandirian belajar terhadap prestasi belajar belajar matematika siswa dengan memperhatikan keaktifan belajar dan kreativitas belajar, (4) Tidak terdapat pengaruh signifikan antara kreativitas belajar terhadap prestasi belajar belajar matematika siswa dengan memperhatikan keaktifan belajar dan kemandirian belajar.

Kata kunci : Keaktifan Belajar, Kemandirian, Kreativitas, Prestasi Matematika

This study was ex-post facto research, which purposed to know the influences of learning activeness, independence and creativity toward Students’ Mathematics Learning Achievement on grade IX of SMP. Sample of study was chosen randomly three class from nine classes. Data were collected using the questionnaires and test learning achievement. The data were analyzed by Descriptive and Inferential. Descriptive analyze obtain (1) Students’ mathematics learning achievement are at high category, (2) Learning activeness are at high category, (3) Learning independence are at high category, (4) Learning creativity are at low category. Inferentially acquire (1) There is influences of learning activeness, learning independence and learning creativity together towards students’ mathematics learning achievement, (2) There is a positive influence of learning activeness toward students’ mathematics learning achievement by paying attention to the learning independence and learning creativity, (3) There is a positive influence of learning independence toward students’ mathematics learning achievement by paying attention to the learning activeness and learning creativity, (4) There was no influence of learning creativity toward students’ mathematics learning achievement by paying attention to the learning activeness and learning independence.

Keyword : Learning Activeness, Independence, Creativity, Mahtematics Achievement
Pengaruh Sistem Manajemen Pembelajaran Virtual Berbasis Schoology Terhadap Disposisi Matematis Siswa
Authors: Tahmir Suradi , Nasrullah N. , Hermia Eka
Published: February 2022

Penelitian ini bertujuan untuk menunjukkan pengaruh penggunaan Sistem Manajemen Pembelajaran (SMP) virtual, yaitu schoology, terhadap disposisi matematis siswa dalam pembelajaran matematika. Penelitian ini tergolong eksperimen semu (quacy experiment), yang melibatkan dua kelas yang diberikan perlakuan yang berbeda, kelas pertama yang diberikan perlakuan menggunakan sistem manajemen pembelajaran virtual menggunakan  schoology  dengan model pembelajaran Blended Learning dan di sebut kelas eksperimen, sedangkan kelas kedua diajarkan dengan menggunakan model pengajaran langsung dan disebut kelas kontrol. Populasi dalam penelitian adalah semua siswa kelas XI di salah satu SMA negeri di Makassar. Pengambilan sampel dalam penelitian ini menggunakan teknik purposive sampling. Untuk pengumpulan data, instrumen yang digunakan adalah angket disposisi matematis (pre-nontest dan post-nontest) dan lembar observasi keterlaksanaan pembelajaran. Data tersebut dianalisis dengan teknik statistik deskriptif dan statistik inferensial. Hasil penelitian membuktikan bahwa penggunaan sistem manajemen pembelajaran virtual berbasis schoology dengan model pembelajaran blended learning terhadap disposisi matematis lebih baik dari pada model pengajaran langsung.Kata Kunci: SMP Virtual,Kelas Virtual, Schoology, Disposisi matematis  This study aims to show the effect of the use of virtual Learning Management System (LMS), namely schoology, on the mathematical disposition of students in learning mathematics. This research is classified as quasi experiment, which involves two classes given different treatments, the first class is treated using a virtual learning management system using schoology with a Blended Learning learning model and called an experimental class, while the second class is taught using a model direct teaching and is called the control class. The population in this study were all students majoring in class XI in one of the state high schools in Makassar. Sampling in this study using purposive sampling technique. For data collection, the instruments used were a mathematical disposition questionnaire (pre-test and post-test) and an observation sheet of the implementation of learning. The data was analyzed with descriptive statistical techniques and inferential statistics. The results of the study prove that the virtual learning management systems based schoology with blended learning models towards mathematical dispositions is better than direct teaching models.Keywords: Virtual SMP, Virtual Class, Schoology Mathematical Disposition
Analisis Hasil Belajar Matematika Siswa Kelas VIII SMP Pada Pokok Bahasan Statistika Dikaitkan Dengan Intelligence Quotient (IQ)
Authors: Ihsan Hamzah , Rusli R. , Rahmatia Selvi
Published: February 2022

. Penelitian ini bertujuan untuk mengetahui hubungan antara hasil belajar matematika dan tingkat kecerdasan siswa. Pengambilan subjek penelitian ini adalah siswa kelas VIII di salah satu SMP di Makassar. Pengambilan subjek dilakukan dengan memberikan tes kepada siswa kelas VIII 5 yang kemudian dari hasil tersebut dipilih 3 subjek penelitian berdasarkan kategori yang ada. Instrumen yang digunakan adalah tes hasil belajar dengan pokok bahasan statistika yang memuat 5 butir soal dan tes IQ yang memuat 38 soal. Hasil penelitian yang dilakukan menunjukkan bahwa pada siswa kelas VIII 5 terdapat pengaruh secara signifikan terhadap hasil belajar dan kecerdasan intelegensi siswa sehingga memperoleh hasil yang beragam. Terdapat juga satu siswa yang IQnya tinggi tapi hasil belajarnya rendah. Dengan mewawancarai subjek yang IQnya tinggi tapi hasil belajarnya rendah, peneliti mendapatkan fakta bahwa terdapat dua faktor yang menyebabkan peserta didik mempunyai kecerdasan intelegensi tinggi memperoleh hasil belajar matematika rendah yaitu faktor internal dan faktor eksternal. Faktor internal merupakan faktor yang timbul dari dalam perserta didik, baik dari psikologis, kesehatan maupun mental. Sedangkan faktor eksternal dari keluarga ditemukan pada peserta didik yang merasa bebas dari orang tua sehingga terlena dengan kebebasan yang diberikan. Selain itu orang tua yang kurang tegas dalam pendidikan peserta didik, sehingga peserta didik kurang bersemangat dalam belajar.Kata Kunci: mix methods, Kecerdasan Intelegensi, hasil belajar This study aims to determine the relationship between mathematics learning outcomes and student intelligence levels. The subjects of this study were VIII grade students in one of the junior high schools in Makassar. Taking the subject by giving a test to students of class VIII 5 then from the results, selected 3 subjects based on existing categories. The instrument used was a learning achievement test containing 5 questions and an IQ test containing 38 questions. The results of the research showed that the VIII grade students had a significant influence on student learning outcomes and Intelligence Quotient so it obtains diverse results. There is also one student who has a high IQ but low learning outcomes. By interviewing subjects with high IQs but low learning outcomes, researchers find the fact that there are two factors that cause students to have high intelligence intelligence to obtain low mathematics learning outcomes, namely internal factors and external factors. Internal factors are factors that arise from the students, both from psychological, health and mental. While external factors from the family are found in students who feel free from parents so as to fall asleep with the freedom given. Besides parents who are less assertive in the education of students, so students are less enthusiastic in learningKeywords: mix-methods, intelligence quotient, learning outcomes
Analisis Kesalahan Siswa Dalam Menyelesaikan Soal pada Materi Persamaan Kuadrat
Authors: Sura' Grace Lisurara' , Tahmir Suradi , Dassa Awi
Published: February 2022

Penelitian ini bertujuan untuk mendeskripsikan kesalahan siswa dalam menyelesaikan soal pada materi persamaan kuadrat. Jenis penelitian ini adalah penelitian deskriptif menggunakan pendekatan kualitatif. Subjek penelitian ini adalah 3 orang siswa kelas XI SMK Negeri di Makassar yang dipilih berdasarkan banyaknya kesalahan yang dilakukan dalam menyelesaikan soal pada materi persamaan kuadrat. Adapun teknik pengumpulan data menggunakan metode tes diagnostik dan wawancara kemudian melalui tiga tahapan analisis data yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian diperoleh bahwa jenis kesalahan yang dialami siswa dalam menyelesaikan soal persamaan kuadrat meliputi kesalahan konsep, kesalahan prinsip, dan kesalahan perhitungan. Hal ini disebabkan karena rendahnya pengetahuan prasyarat siswa tentang operasi bilangan, siswa belum memahami tentang menentukan akar-akar persamaan kuadrat dengan cara melengkapkan bentuk kuadrat sempurna, dan siswa tidak memahami rumus abc untuk menentukan akar-akar persamaan kuadrat, serta siswa kurang teliti menggunakan operasi hitung.Kata kunci: Analisis Kesalahan, Kesalahan Konsep, Kesalahan Perhitungan, Kesalahan Prinsip, Persamaan KuadratThis study aims to describe students’ errors in solving questions of quadratic equation. This research type is descriptive research using qualitative approach. The subject of this research is 3 students of grade XI SMK Negeri in Makassar who were selected based on the number of errors experienced in solving questions of quadratic equation. Data collection techniques used in this study is diagnostic test and interview methods then through three stages of data analysis namely data reduction, data presentation, and conclusion. The results obtained that the types of errors experienced by students in solving quadratic equation included conceptual error, principle error, and calculation error. This was because the low of students’ prerequisite knowledge about number operations, students didn’t understand about finding the roots of quadratic equation by completing the perfect square, students didn’t understand the abc formula to finding the roots of quadratic equation, and students inaccurate using arithmetic operations.Keyword: Error Analysis, Concept Error, Calculation Error, Principle Error, Quadratic Equation
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS VIII SMPN 4 TANASITOLO (STUDI PADA MATERI ZAT ADITIF DAN ADIKTIF)
Authors: Sari Firda Widya , Muhiddin Nurhayani H , Yunus Sitti Rahma , Saenab Sitti
Published: February 2022

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar peserta didik yang diajar dan tanpa diajar menggunakan Model Pembelajaran Kooperatif tipe make a match pada peserta didik kelas VIII SMP Negeri 4 Tanasitolo. Penelitian ini merupakan Quasi Experimental (eksperimen semu) dengan menggunakan desain penelitian Nonequivalent Control Group Design. Populasi penelitian adalah seluruh peserta didik kelas VIII SMPN 4 Tanasitolo yang terdiri dari 2 kelas. Pengambilan sampel melalui teknik sampling jenuh dan diperoleh kelas VIII 1 sebagai kelas eksperimen dan VIII 2 sebagai kelas Kontrol. Instrumen tes hasil belajar berupa pilihan ganda berjumlah 25 item soal. Teknik pengumpulan data adalah dengan pemberian Pretest dan Posttest. Analisis data dilakukan dengan analisis statistik deskriptif. Hasil belajar peserta didik kelas eksperimen yang diajarkan menggunakan model kooperatif tipe make a match diperoleh skor rata-rata N-Gain 0,62 pada kategori sedang dan kelas kontrol yang diajarkan tanpa menggunakan model kooperatif tipe make a match yaitu 0,49 pada kategori sedang. Hasil penelitian menunjukkan terdapat pengaruh berdasarkan perbedaan hasil skor rata-rata N-Gain yang diperolah dan hasil belajar peserta didik meningkat dengan menggunakan model pembelajaran kooperatif tipe make a match serta terdapat perbedaan hasil belajar kelas eksperimen dan kelas kontrol.
DESKRIPSI KETERAMPILAN INTERPRETASI GRAFIK PESERTA DIDIK KELAS VIII DI SMPN TERAKREDITASI A SE-KECAMATAN TAMALATE PADA MATERI GERAK LURUS
Authors: Musdalifah Musdalifah , Yunus Sitti Rahma , Rusli Muhammad Aqil
Published: February 2022

Penelitian ini bertujuan untuk mengetahui deskripsi keterampilan menginterpretasi grafik peserta didik kelas VIII  di SMPN terakreditasi A se-Kecamatan Tamalate pada materi gerak lurus. Populasi penelitian ini adalah seluruh peserta didik SMPN terakreditasi A se-Kecamatan Tamalate sebanyak 1868 peserta didik. Sampel dipilih dengan teknik Random Sampling menggunakan Rumus Slovin sehingga sampel dalam penelitian ini adalah 329 peserta didik. Instrumen penelitian berupa soal pilihan ganda sebanyak 20 butir soal. Teknik pengumpulan data yaitu pemberian tes secara online melalui google form. Data dianalisis dengan analisis deskriptif kuantitatif. Nilai rata-rata keterampilan menginterpretasi grafik peserta didik pada materi gerak lurus yaitu 57,4 % berada pada kategori kurang dengan persentase masing-masing aspek yaitu aspek memahami arti gradien pada grafik 64,3%, aspek menentukan nilai data dari range variabel 66,4%, aspek menentukan data variabel bebas dan terikat pada grafik 49,4%, dan aspek menentukan hubungan antar variabel pada grafik 51,4%.
PENGGUNAAN LAHAN DALAM MENINGKATKAN PENDAPATAN RUMAH TANGGA DI DESA PURWOSARI KECAMATAN TOMONI TIMUR KECAMATAN LUWU KABUPATEN TIMUR (STUDI KASUS KAWASAN RUMAH PANGAN LESTARI (KRPL)
Authors: Suryanhi Lilis , M Maddatuang
Published: February 2022

ABSTRAKPenelitian ini bertujuan untuk mengetahui jenis tanaman yang dibudidayakan oleh warga di lahan pekarangan, pelaksanaan kegiatan Kawasan Rumah Pangan Lestari (KRPL), dan berapa besar kontribusi dari pemanfaatan lahan pekarangan dalam peningkatan pendapatan rumah tangga di Desa Purwosari Kecamatan Tomoni Timur Kabupaten Luwu Timur. Teknik pengambilan sampel dengan menggunakan Total Sampling adalah teknik pengambilan sampel dimana jumlah sampel sama dengan populasi. Teknik pengumpulan data yang digunakan dalam penelitian ini yaitu teknik kepustakaan, observasi, wawancara dan dokumentasi. Berdasarkan penelitian tanaman yang dibudidayakan oleh responden di lahan pekarangan sangatlah bervariasi seperti sawi, kangkung, kacang panjang, tomat, bayam, kacang melati, dan terung. Kawasan Rumah Pangan Lestari (KRPL) di Desa Purwosari dilaksanakan dengan membentuk kelompok yang memiliki struktur kepengurusan yang disahkan oleh kepala desa. Kelompok yang telah terbentuk dan memenuhi syarat akan memperoleh dana bantuan dari pemerintah kabupaten untuk budidaya sayur yakni sebesar Rp 40.000.000/ kelompok. Kemudian kelompok KRPL ini akan didampingi oleh pendamping dari kecamatan yang akan membantu mengarahkan dan mengawasi pelaksanaan KRPL. Besar kontribusi dari pemanfaatan lahan pekarangan dalam peningkatan pendapatan rumah tangga responden memiliki nilai yang sangat berarti dengan nilai kontribusi yang paling tinggi yaitu 47.7% dan yang paling rendah adalah 7.41%. Hal ini dapat membantu rumah tangga dalam memenuhi kebutuhan sehari-hari.
ANALISIS POTENSI PERKEBUNAN KARET TERHADAP PENINGKATAN KESEJAHTERAAN RUMAH TANGGA PETANI DESA TAMATTO, KECAMATAN UJUNG LOE, KABUPATEN BULUKUMBA
Authors: Mulqy Muhammad Maliqul , Abbas Ibrahim
Published: February 2022

ABSTRAK]Penelitian ini bertujuan untuk mengetahui: 1). tingkat kesejahteraan rumah tangga  petani karet Desa Tamatto, Kabupaten Bulukumba. 2). Untuk mengetahui upaya petani karet Desa Tamatto untuk meningkatkan kesejahteraan rumah tangganya. Populasi dalam penelitian ini adalah seluruh petani karet yang ada di Desa Tamatto sebanyak 364 orang. Kemudian dari masing-masing Dusun di Desa Tamatto dijadikan sampel sebanyak 10%. Penelitian ini menggunakan data kuantitatif dan kualitatif. Pengumpulan data dilakukan dengan teknik observasi, wawancara, dokumentasi, dan kuisioner. Teknik analisis data menggunakan pendekatan kuantitatif dan kualitatif. Dari hasil penelitian didapatkan hasil tingkat kesejahteraan petani karet kategori tinggi yaitu Kesehatan dan Gizi, Pendidikan, Ketenagakerjaan, Taraf dan Pola Konsumsi, Perumahan dan Lingkungan hidup. Sementara itu yang termasuk kategori sedang ialah Kependudukan dan Sosial. Hasil analisis menunjukkan bahwa petani karet di Desa Tamatto termasuk ke dalam kategori Sudah Sejahtera.
PEMETAAN POTENSI MATA AIR BERBASIS SISTEM INFORMASI GEOGRAFI (SIG) DI DAS MAROS
Authors: Hidayat Alfian , Yusuf Muhammad , HS Suprapta
Published: February 2022

This study aims to determine the potential of springs in the Maros watershed by utilizing the Geographic Information System (GIS), as well as the distribution of potential springs in the Maros watershed. The parameters used are vegetation density, rainfall, topography, geology, and geohydrology. The data used is secondary data. The data analysis technique is a weighted tiered quantitative analysis by overlapping the spring potential parameter map. So that the results of the physical characteristics that determine the potential of springs in the Maros watershed are obtained, namely vegetation density with a very dense level, rainfall (3,000 - 4,000 mm/year), sloping hill topography to very steep hills and dominated by sedimentary rock types and water basins. soil. The potential level of springs in the Maros watershed in the very low potential level class is 1872.78 Ha (3%) area, then at the low hazard level class is 1505.88 Ha (2%) area, at the medium potential level class is 16257 ,6 Ha (22%), in the high potency class it was 38429.7 Ha (53%) and in the very high potency class it was 15053.7 Ha (21%).
MIGRATION PROCESSES IN UKRAINE: VOLUMES, REASONS, CONSEQUENCES
Authors: Podra Olha , Petryshyn Nataliia
Published: February 2022

Introduction. Ukrainian migration is caused by the influence of global migration trends, however, it should be noted that there are internal causes in the country – crisis socio-economic factors and military conflicts that force citizens to seek residence and employment abroad. The dynamics of the population of Ukraine is studied, probable scenarios of its reduction are analyzed, it is established that one of the key problems of such situation is growing volumes of external labor migration caused by instability of social and economic environment, decrease of well-being and quality of life.
The subject of the research is migration processes in Ukraine, determination of their volumes, reasons and probable consequences.
The purpose of the study is to conduct a thorough study of the impact of migration processes on the economy of Ukraine; identification of probable demographic changes, reasons and main trends in the growth of external labor migration.
Method (methodology). In the process of research in order to substantiate the provisions presented in the article, a set of general scientific and special methods was used: analysis and synthesis – to compare the main approaches to the interpretation of concepts and methods of determining the volume of labor migration; comparison and grouping – to assess the level of wages in Ukraine and EU countries; graphical method – to visualize the result of determining the amount of population decline and the number of citizens who have received residence permits in the EU-28; abstract – for theoretical generalization and formulation of conclusions.
Results. It is established that the main reason for the rapid decline of the population of Ukraine should be considered the growing volume of external migration, which poses a threat to socio-economic development and national security. At the same time, it should be noted that the main reason for the growth of external labor migration is economic and related to the desires and intentions of migrant workers to earn more, that is why the main migration flows are directed to countries with higher levels of development and quality of life. In addition, it should be noted that a number of European countries encourage Ukrainians to work, as evidenced it may be mentioned the annual increase in the number of issued residence permits in the EU-28.
USING A CORPORATE USEFULNESS FUNCTION TO DETERMINE AN ACCEPTABLE AMOUNT OF BUSINESS INSURANCE
Authors: Pistunov Igor
Published: February 2022

The main problem in concluding business insurance contracts has the main obstacle – the coordination of the insurance premium between the corporation and the insurer. The notion of the Neumann-Morgenstern utility function was used to determine the level of interest of the corporation's employees. Based on the method developed earlier by the author to determine the utility function for corporations, a number of meetings were held with the management of the NGO "South" to determine the utility function of each group. To do this, they were offered a conditional game with the opportunity to win a large or small amount by paying some intermediate amount. At the same time, the probability of winning a large sum changed until the player became indifferent to winning or losing.
The data were pooled and approximated by a transcendental model that included a power function, an exponent, and a sine wave. The search for model coefficients was performed by the method of optimization selection through the "Solution Search" function of Excel spreadsheets. The quality of the approximation was tested by Pearson's test with a confidence level of 0.8. The quality of the approximation is also confirmed by the almost complete coincidence of the graphs of the original function and the approximated one.
The method of finding an acceptable amount of business insurance on the principle of greatest utility is given. To do this, the values of the probability of winning, the amounts of winnings and losses were the usefulness of this financial transaction with the use of approximation. Then, the weighted average utility was determined by the product of the probability of winning on the utility of the amount of gain with the addition of the product of the probability of loss on the utility of the amount of loss.
According to the developed methodology, acceptable insurance premiums were calculated for four launches under the Sea Start program for the case when the insurance company independently determined the probability of a failed launch. It is shown that the sum insured demanded by the insurers significantly exceeded the amount that the corporation agreed to pay.
The conclusions provide an additional calculation for a failed start-up and show that in the latter case it would be more profitable to abandon the insurance. It is also recommended before concluding the insurance contract to perform the proposed procedure to reduce the period of approval of the amount of insurance premiums.
INSURANCE MANAGEMENT TOOLS AND AREAS OF IMPROVEMENT
Authors: Tkachenko Kateryna
Published: February 2022

Introduction. The insurance market of Ukraine in recent years has been operating in the face of many challenges that require insurance companies to effectively use insurance management tools and their continuous improvement. The insurance market of Ukraine is directly affected by the macroeconomic situation and the slowdown in economic activity in 2020-2021, which led to a reduction in the assets of insurers, reducing their number and frequent violations by insurers of capital adequacy and solvency. Further development of the insurance market of Ukraine is possible only if the development of insurance management and improvement of its tools.
Purpose. The purpose of the article is to assess the effectiveness of insurance management tools and justify areas for improvement.
Method (methodology). In the process of research such methods were used as logical, which allowed to analyze scientific works and generalize a set of tools of insurance management; analytical, which was used to analyze the use of insurance management tools such as reinsurance, insurance reserves, standards for investing insurance reserves according to the National Bank of Ukraine in 2020-2021; tabular and graphical, which allowed to interpret the results of the analysis in a visual form.
Results. Insurance companies to ensure a sufficient level of profitability of insurance operations, increase the market value of the insurance company, as well as timely and full fulfillment of obligations to policyholders and other economic agents form in accordance with current legislation strategy and tactics of insurance management based on specific tools: reinsurance , creation of reserve funds, diversification, rationing. The use of insurance management tools should be improved in the direction of harmonization of domestic legislation in accordance with the requirements of the European Union and international regulatory practices, as well as to adapt to domestic economic and social realities the best practices of insurance management.
DEVELOPMENT OF COMPANIES IN THE CONDITIONS OF INSTABILITY OF THE WORLD ECONOMY: OPPORTUNITIES, CHALLENGES, PROSPECTS
Authors: Zadorozhnyi Oleksii , Zhaldak Hanna
Published: February 2022

As we know economic processes have a cyclical nature, which determines the periods of active economic growth and decline. Given the dynamic development of the world economy, the main task today for small, medium and large businesses is to adapt to volatile market conditions. Adaptation of companies to cyclical processes is the only way to increase the level of competitiveness of the firm, maximize profits, increase the efficiency of capital use, and so on. During the research such general scientific methods as: inductive, deductive, statistical, dynamic, etc. are used. The aim of the study was to determine the positive and negative effects of the instability of the world economy on the development of companies in various sectors of the economy.
Current trends in the development of companies in an unstable economic situation are studied. Examples of active development and bankruptcy of companies during economic crises, shocks, depressions are given. The impact of the COVID-19 pandemic on the formation and development of individual enterprises is analyzed. The statistical information on changes in gross profit of some companies of the secondary and tertiary sectors of the economy in the conditions of market instability is given. The main principles of increasing the efficiency of enterprises, taking into account the cyclical nature of the economy, in particular: minimizing costs and achieving a higher level of environmental friendliness; introduction of a high level of innovation and development of technological innovations; improving the quality of management, which will provide a high level of flexibility and adaptability of companies to unforeseen changes; development of a culture of experimentation. Examples of some tools and methods for analyzing the external and internal environment of the company, in particular, SWOT-analysis, the use of which provides the ability to make management decisions to improve the efficiency of capital use. It is concluded that under conditions when competition in the market is constant or increasing, the so-called "struggle for the consumer's dollar" is carried out, and therefore companies need to constantly analyze their competitors. This allows you to make appropriate decisions as quickly as possible when market conditions change.