bluuebunny/crossref_metadata_2025 huggingface dataset:
Obstáculos detectados en la formación matemática de ingenieros. Una revisión de literatura
Authors: Plaza Gálvez Luis Fernando , Villa-Ochoa Jhony Alexander
Published: February 2020

Este trabajo tuvo como finalidad conocer, identificar y sintetizar algunos estudios realizados sobre los obstáculos y dificultades que pueden presentarse en la enseñanza o en el aprendizaje de las matemáticas para la formación de ingenieros. El estudio fue de carácter descriptivo y se analizaron 63 trabajos académicos que se publicaron entre 1981 y 2017. Los resultados de esta revisión dan cuenta de un especial interés en el estudio de obstáculos de carácter epistemológico, cognitivo y didáctico. También, se observa un interés en identificar si la fuente de los obstáculos está en el estudiante, el profesor, en una institución o en la cultura. De manera particular, este estudio da cuenta de algunos obstáculos y dificultades en la modelación matemática; entre ellos, se destacan aspectos relacionados con la articulación de la matemática con otras disciplinas, la matematización y el uso del lenguaje matemático en la resolución de problemas propios del campo. Algunas implicaciones para las instituciones y los profesores se desprenden de la revisión.
Modelo predictivo para la identificación de factores socioculturales asociados al tiempo de búsqueda del primer empleo en egresados universitarios
Authors: Bedoya Herrera Oscar Mauricio , López Trujillo Marcelo , Marulanda Echeverry Carlos Eduardo
Published: February 2020

Algunos programas de educación superior en Colombia desconocen si las variables socioculturales de sus recién egresados son influyentes en el tiempo que tardan en conseguir su primer empleo. Este artículo muestra los resultados del uso de técnicas automáticas de extracción de datos, para el análisis predictivo del tiempo que un graduado tarda en conseguir su primer empleo, orientadas a egresados de Ingeniería de Sistemas de la Universidad de Caldas, en el último lustro. Para su desarrollo se emplearon rutinas de análisis de datos, utilizando el algoritmo de longitud de descripción mínima, estableciendo que los factores representativos, que permiten pronosticar el tiempo de búsqueda satisfactoria del primer empleo, son el nivel de educación de la madre, el rendimiento académico y el factor de ingreso. El estudio contrasta el valor objetivo original con el valor de predicción para 135 registros, donde se concluye que los graduados que tienen un rendimiento de 3, entre 1 y 5, siendo este último el rendimiento ideal, con un nivel de educación de su madre correspondiente a “Primaria Completa”, y cuyo factor de ingreso es “Sus habilidades y destrezas”, se proyectan para conseguir su primer empleo en “Menos de 3 meses”, con un 63% de certeza.
La enseñanza de automatismos eléctricos en el segundo nivel de educación media técnica o académica
Authors: Paredes Daza Javier David , Pinto Linares Heriberto Augusto
Published: February 2020

Con los resultados del presente artículo se pretende mejorar significativamente el proceso de enseñanza-aprendizaje de automatismos eléctricos, en algunos colegios técnicos o académicos de la ciudad de Duitama -Boyacá que lo requieren, y que además estos sean un referente pedagógico y didáctico para que otras instituciones educativas, en el ámbito nacional, propendan por su proliferación. El estudio está fundamentado metodológicamente desde la investigación documental y la investigación de enfoque cualitativo. Como parte de los resultados obtenidos se elaboraron cuatro tableros didácticos y nueve guías de práctica, que tienden a minimizar las dificultades tanto de docentes como de estudiantes en la enseñanza y aprendizaje, respectivamente, de los automatismos eléctricos, e incentivar a estos, a través del mejoramiento de la infraestructura de los laboratorios de electricidad. Los aportes del estudio realizado, además de beneficiar la construcción del conocimiento y el proyecto de vida de los educandos, contribuye a que estos futuros profesionales sean partícipes en proyectos que permitan el avance tecnológico del departamento y del país. Asimismo, el profesor, en su rol de guía en la enseñanza de automatismos eléctricos, cuenta con los elementos necesarios para crear un ambiente propicio que genere experiencias de aprendizaje significativo y con sentido.
La gestión de la tecnología y la innovación en el sector defensa: resultados desde un análisis bibliométrico
Authors: Jiménez-Navia Breyner , Villa-Enciso Eliana María , Bermúdez-Hernández Jonathan
Published: February 2020

La Gestión de la Tecnología y la Innovación (GTI) en el sector defensa permite a las instituciones militares estar a la vanguardia para alcanzar sus objetivos estratégicos. El objetivo de este artículo es realizar un análisis de la actividad científica en la temática GTI en el sector defensa, que evidencie información relevante en torno a la temática, a partir de la búsqueda y análisis en una de las bases de datos más importante de literatura científica, en el ámbito mundial. La metodología utilizada fue un análisis bibliométrico, complementado con análisis de redes, que permitió conocer comunidades científicas, autores, países, tendencias e interés por los procesos de gestión tecnológica e innovación en el sector defensa. Algunos hallazgos importantes indican que este es un campo fuerte en investigación y que aún se encuentra en crecimiento, además fue posible evidenciar la influencia científica de países como Reino Unido, Estados Unidos y Alemania. Cabe resaltar que como campos nacientes de interés en el estudio de la GTI en el sector defensa, se identificaron la inversión en GTI, los sistemas de información, el emprendimiento y desarrollo tecnológico; estos campos se relacionan con las nuevas aplicaciones de la innovación en el sector defensa.
Géneros musicales preferidos por universitarios de la ciudad de Medellín, Colombia
Authors: Restrepo Betancur Luis Fernando , Ocampo Quiceno María Fernanda
Published: February 2020

La música es vital para el ser humano, ya que por medio de ella se expresan emociones y sentimientos. El presente estudio tuvo como objetivo comparar el gusto musical entre sexos, estableciendo su estructura factorial, seleccionándose 1000 estudiantes universitarios en la ciudad de Medellín-Colombia, a quienes se aplicó una encuesta en la escala de Likert. Para el análisis estadístico se empleó el modelo lineal general, incorporando la técnica MANOVA; adicionalmente, se realizó análisis factorial exploratorio. Se utilizaron los paquetes estadísticos SAS y FACTOR, detectando diferencias entre sexos (p menor que 0.05), referente a la estructura factorial; lo anterior, indica que la preferencia musical no es la misma. Se concluye que los géneros musicales de mayor aceptación son: rock, clásica, salsa, electrónica e instrumental, mientras que los géneros menos aceptados son: corridos, rancheras, religiosa, llanera y popular.
ANALISIS NILAI SAHAM DENGAN DIVIDEND DISCOUNT MODEL (DDM) (Studi kasus Perusahaan Tekstil Dan Garmen Yang Terdaftar Di Bursa Efek Indonesia Tahun 2018)
Authors: Yuliah Yuliah , Triana Leni , Lesmana Ihwan Satria
Published: February 2020

AbstrakPenilaian saham digunakan untuk membandingkan antara nilai intrinsik dan nilai pasar saham, yang mana akhirnya akan dijadikan sebagai dasar keputusan investasi apakah investor akan menjual atau membeli saham. penelitian ini bertujuan untuk mengetahui dan manganalisa hasil dari perhitungan penilaiain saham menggunakan Dividend Discount Model (DDM) dengan model pertumbuhan konstan. Metode  penelitian yang digunakan adalah deskriptif kuantitatif dengan objek penelitian pada perusahaan tekstil dan garmen yang terdaftar di Bursa efek Indonesia tahun 2018. Teknik pengambilan sampel menggunakan puposive sampling dan didapat 5 sampel penelitian. Hasil penelitian ini menunjukkan bahwa dari 5 perusahaan memiliki hasil yang berbeda, dimana saham BELL dan RICY berada dalam kondisi overvalued karena nilai intrinsik lebih rendah dibanding dengan nilai pasar, sedangkan pada saham PBRX, SRIL dan TRIS berada pada posisi undervalued karena nilai intrinsik lebih tinggi dibandingkan dengan nilai pasar.Kata Kunci: Nilai Saham, Dividend Discount Model.AbstractStock valuation uses to compare between intrinsic value and stock market value, which ultimately will be used as a basis for investment decisions whether investors will sell or buy shares. This study aimed to determine and analyze the results of stock valuation calculations using the Dividend Discount Model (DDM) with a constant growth model. The research method used is descriptive quantitative research objects in textile and garment companies listed on the Indonesia Stock Exchange in 2018. The sampling technique uses purposive sampling and obtained five research samples. The results of this study indicate that all of the five companies having different effects. Where BELL and RICY shares were in overvalued conditions because the intrinsic value was lower than the market value, while in PBRX, SRIL and TRIS stocks undervalued because the inherent value is higher than with market value.Keywords: Stock Valuation, Dividend Discount Model.
LQR based Control Strategies for a Spherical Tank Level Process
Authors:   Department of Instrumentation and Control Engineering, A.V.C. College of Engineering, Mayiladuthurai, TamilNadu, India, Suriyaprabha* Ka. , Rathikarani Dr. D. ,   Department of Electronics and Instrumentation Engineering, Annamalai University, Annamalai Nagar, TamilNadu, India
Published: February 2020

Spherical tank finds wide application in gas plants and process industries, petro chemical industries, paper manufacturing and water treatment industries. In a spherical tank, controlling the level is a critical entity. Due to change in shape, the system displays high nonlinear behavior which in turn exhibits the non-linear characteristics. The system’s nonlinearity complicates in the design of conventional PI controllers. In this work, The PI controller gains are formulated as the optimal state-feedback gains. A PSO has been accustomed optimally discover the weighting matrices, related to the various optimum state-feedback regulator design whereas minimizing ISE and the controller effort. The performance of the proposed PSO based LQRPI controller is contrasted with those of GA-LQRPI and LQRPI controllers.
Impact strength of Friction Stir Welded joints of dissimilar Aluminum alloy
Authors:   Mechanical Engineering, Delhi Institute of Tool Engineering, Delhi, India., Gupta* Arun , Vipin  ,   Department of Mechanical Engineering, Delhi Technological University, Delhi, India.
Published: February 2020

Joining processes has been the heart of the manufacturing processes. Welding has played an important part in joining processes since its inception. Friction Stir Welding (FSW) has given promising results especially in the case of aluminum alloys. In the present paper, dissimilar aluminum alloy heat-treatable AA6082 T651and non-heat treatable AA 5083 O were friction stir welded as per design matrix generated according to the rotatable central composite design of response surface methodology. Impact toughness was measured from samples of welded joints. The impact toughness was mapped in terms of FSW parameters and the regression equation is generated. The response surfaces and contour plots are drawn and interpreted. The input parameters are optimized to achieve maximum impact strength. Confirmation runs were performed and found results were found close to the optimized values. The present research is useful for further augmentation of the FSW process of aluminum alloy.
Impact of Capital Structure on Financial Performance of Selected Multinational Companies in India
Authors:   University Business School, Panjab University, Chandigarh, India,, Malik* Archana , Singh Harjit ,   Associate Professor, Amity School of Business, Amity University Uttar Pradesh, India,
Published: February 2020

Hundreds of studies researching impact of capital structure on financial performance have been carried across the globe. A selected review of some of the latest ones reveal that most of them have been premised on a thin sample size. Ten such recent studies have minimum sample size of 10 organizations, minimum sample size of 237 organizations and a mean sample size of 56 organizations. The sample size choice has been largely ad-hoc not showing any relationship with the size of population. This research takes a scientific approach to study 400 multinational companies from India based on the population of around 5000 listed companies on the Bombay Stock Exchange. Due sectoral representation was given in the sample selected for the study. Here in this study the impact of capital structure on financial output of the selected companies was studied. Before the full-fledged study was carried, a pilot study was carried on the basis of 30 multinational companies. This article presents the conceptual foundations, literature review and findings from the pilot study.
Mechanical Properties of Concrete by Replacing Cement with Eggshell powder and Fly ash
Authors:   Associate Professor and Head of the Department, Civil Engineering, Pace Institute of Technology & Sciences, Valluru, Prakasam, AP, India, Naidu* Gopu Ganesh , Edukondalu Kannella ,   PG student, Structural Engineering, Department of Civil Engineering, Pace Institute of Technology & Sciences, Valluru, Prakasam, AP, India
Published: February 2020

This research concentrates on the determination of feasibility of using Eggshell powder and Fly ash as alternate materials of Cement in concrete and their effects on mechanical properties of concrete. The production of cement produces Green house gasses into the atmosphere which pollute the Environment .To overcome this problem we are replacing cement with eggshell powder and fly ash. As the eggshell powder and fly ash are waste material they can available easily and their cost is also very low compared to the production of same amount of cement. The chemical composition of Eggshells is roughly 95% similar to that of cement, which has more calcium content; both physical and chemical properties of cement are almost similar to that of Fly ash. By replacing cement with these two materials in the concrete we can reduce the cost of production of cement and can safeguard the environment. The specimens were prepared and tested for compressive strength, Slump cone test, splitting tensile strength, Modulus of elasticity and flexural strength at 7,14, 28 & 56 days. Results show that the strength of conventional concrete is less than compared to the concrete prepared by replacing the cement with eggshell powder and fly ash.
Integrated HNAS Network Model Based Lossless Compression with Data Hiding using Parity Check in Medical Images
Authors:   Department of Computer Science and Applications, The Gandhigram Rural Institute (Deemed to be University), Gandhigram - 624 302, Dindigul, Tamil Nadu, India., Lakshmanan S. , Rani* M. Mary Shanthi ,   Department of Computer Science and Applications, The Gandhigram Rural Institute (Deemed to be University), Gandhigram - 624 302, Dindigul, Tamil Nadu, India.
Published: February 2020

A massive volume of medical data is generating through advanced medical image modalities. With advancements in telecommunications, Telemedicine, and Teleradiologyy have become the most common and viable methods for effective health care delivery around the globe. For sufficient storage, medical images should be compressed using lossless compression techniques. In this paper, we aim at developing a lossless compression technique to achieve a better compression ratio with reversible data hiding. The proposed work segments foreground and background area in medical images using semantic segmentation with the Hierarchical Neural Architecture Search (HNAS) Network model. After segmenting the medical image, confidential patient data is hidden in the foreground area using the parity check method. Following data hiding, lossless compression of foreground and background is done using Huffman and Lempel-Ziv-Welch methods. The performance of our proposed method has been compared with those obtained from standard lossless compression algorithms and existing reversible data hiding methods. This proposed method achieves better compression ratio and a hundred percent reversible when data extraction.
Implementation of Authenticated Hybrid QKD Protocols for 802.11 LANs
Authors:   Professor,Dept. of IT, Vardhaman College of Engineering, Shamshabad., naik* Dr.R. Lalu , Reddy Dr. Seelam Sai Satyanaryana ,   Professor, Dept. of CSE, Vardhaman College of Engineering, Shamshabad., Kumar Mr.Shrawan ,   Assistant Professor, Dept. of CSE, Vardhaman College of Engineering, Shamshabad.
Published: February 2020

Quantum cryptography (QC) is used to give approved secure correspondence between the sender and beneficiary. In QC, Authentication Hybrid Quantum Key Distribution Protocols (AHQKDPs) use quantum segments to isolate session keys and open talks to check for covert operatives and affirm the rightness of a session key. In any case, open talks require additional correspondence adjusts between sender beneficiaries. The benefit of QC adequately is against replay and inert assaults. An AQKDP with certain customer approval, which ensures that protection, is achievable for valid down customers and the mutual check is practiced carefully when secure correspondence using the session key starts. AQKDP have two phases, for instance, set up the stage and the appropriation stage to give 3, parties QKDP. In this system, there is no basic perception between the sender and beneficiary. Both sender and beneficiary must focus on confided in core interest. In this express, check blend AHQKDP has two phases, for instance, set up the stage and the dispersion stage to give three gatherings affirmations, and secure session key appointment. In this structure, there is basic perception between the sender and beneficiary. Both sender and beneficiary must compare direct with approval of confided in core interest.
Real-Time Anomaly Detection using Average Level-Crossing Rate
Authors:   Department of Electronics and Communication Engineering, Government Engineering College Thrissur, Kerala, India., B* Premanand , Sheeba V. S. ,   Principal, Government Engineering College Thrissur, Kerala, India.
Published: February 2020

Vibration data collected from piezoelectric sensors serve as a means for detecting faults in machines that have rotating parts. The sensor output that is sampled at the Nyquist rate is stored for analysis of faults in the traditional condition monitoring system. The massive amount of data makes the analysis very difficult. Very complex procedures are adopted for anomaly detection in standard methods. The proposed system works on the analog output of the sensor and does not require conventional steps like sampling, feature extraction, classification, or computation of the spectrum. It is a simple system that performs real-time detection of anomalies in the bearing of a machine using vibration signals. Faults in the machines usually create an increase in the frequency of the vibration data. The amplitude of the signal also changes in some situations. The increase in amplitude or frequency leads to a corresponding increase in the level-crossing rate, which is a parameter indicating the rate of change of a signal. Based on the percentage increase in the average value of the level-crossing rate (ALCR), a suitable warning signal can be issued. It does not require the data from a faulty machine to set the thresholds. The proposed algorithm has been tested with standard data sets. There is a clear distinction between the ALCR values of normal and faulty machines, which has been used to release accurate indications about the fault. If the noise conditions do not vary much, the pre-processing of the input signal is not needed. The vibration signals acquired with faulty bearings have ALCR values, ranging from 3.48 times to 10.71 times the average value of ALCR obtained with normal bearing. Hence the proposed system offers bearing fault detection with100% accuracy.
A Case - Study on the Effect of Averaging Duration on RF Dosimetry of General Public Environments
Authors: Aliakbarian Hadi , Asadi Reza , majdolashrafi Piroz , Khayambashi Ghazale
Published: February 2020

This is the accepted version of our article in IEEE EMC Magazine:

 

R. Asadi, H.  Aliakbarian, G. Khayambashi and P. Majdolashrafi, "A case-study on the  effect of averaging duration on RF dosimetry of general public  environments," in IEEE Electromagnetic Compatibility Magazine, vol. 9, no. 3, pp. 45-54, 3rd Quarter 2020, doi: 10.1109/MEMC.2020.9241551.
Phaseless Gauss-Newton Inversion for Microwave Imaging
Authors: Narendra Chaitanya , Mojabi Puyan
Published: February 2020

A phaseless Gauss-Newton inversion (GNI) algorithm is developed for microwave imaging applications. In contrast to full-data microwave imaging inversion that uses complex (magnitude and phase) scattered field data, the proposed phaseless GNI algorithm inverts phaseless (magnitude-only) total field data. This phaseless Gauss-Newton inversion (PGNI) algorithm is augmented with three different forms of regularization, originally developed for complex GNI. First, we use the standard weighted L2 norm total variation multiplicative regularizer which is appropriate when there is no prior information about the object being imaged. We then use two other forms of regularization operators to incorporate prior information about the object being imaged into the PGNI algorithm. The first one, herein referred to as SL-PGNI, incorporates prior information about the expected relative complex permittivity values of the object of interest. The other, referred to as SP-PGNI, incorporates spatial priors (structural information) about the objects being imaged. The use of prior information aims to compensate for the lack of total field phase data. The PGNI, SL-PGNI, and SP-PGNI inversion algorithms are then tested against synthetic and experimental phaseless total field data.
Увеличение степени отказоустойчивости в программно-аппаратных системах сетевого управления на примере мягкого облачного хранилища
Authors: Черный С.Г. , Chernyi S.G. , Жиленков А.А. , Zhilenkov A.A.
Published: February 2020

Рассматриваются методы повышения отказоустойчивости сетевых систем управления на примере системы хранения данных типа мягкое облачное хранилище. На основе моделей прогнозирующего управления предлагается новая модель системы управления, способная противостоять таким негативным сетевым эффектам, как временные задержки и потеря пакетов. Разработан инструмент для тестирования новой модели системы управления методом внесения неисправностей.
El final abierto del incidente de Antioquía según Pablo en Gal 2, 11-14
Authors: Delgado Gómez Alfredo
Published: February 2020

Este trabajo, quiere
considerar retórica y narrativamente
el relato de Pablo acerca del
conflicto de Antioquía (Gal 2,11-14),
para proponer como tesis, que el
final abierto de Pablo en su descripción
del conflicto de Antioquía es
una estrategia retórica consciente
y deseada, que genera tensión en
su auditorio gálata, en orden a presentar
la afirmación teológica central
de la carta: “somos salvados en
Cristo por la fe y no por las obras
de la ley” (Gal 2,16), una tesis que
quiere sostener su mensaje principal
a la comunidad gálata «no os
circuncidéis», si lo hacéis, “Cristo
no os servirá de nada” (Gal 5,2)
On Classifications of Normal and Osculating Curves in 3-dimensional Sasakian Space
Authors: ALYAMAC KULAHCİ Mihriban , BEKTAŞ Mehmet , BİLİCİ Ahmet
Published: February 2020

This study provides the de…nition of rectifying, normal and osculating curves in 3-dimensional Sasakian space with their characterizations. Furthermore, the di¤erential equations obtained from these characterizations are solved and their figures are presented in the text. Sasakian manifolds were introduced in 1960 by the Japenese geometer Shigeo Sasaki [19]. There was not much activity in this field after the mid-1970s, until the advent of String theory. Since then Sasakian manifolds have gained importance in physics and geometry. For physicists and geometers, the study of Sasakian space has its own interest, so it has been extensively studied area of scientific researchs [1, 3, 4, 7, 9, 20]. In the 3-dimensional Sasakian space, to each regular curve γ, it is possible to associate three mutually ortogonal unit vector fields. The vectors V1, V2, V3 are called the tangent, the principal normal and the binormal vector field, respectively. The planes spanned by the vector fields, {V1, V2} , {V1, V3} and {V2, V3} are defined as the osculating plane, the rectifying plane and the normal plane, respectively. In the Euclidean space E3, the notion of rectifying curves was introduced by Chen in [10]. In addition, he showed in [11] that there exist a simple relationship between the rectifying curves and centrodes, which play some important roles in mechanics, kinematics as well as differentialgeometry.
Pengaruh Pengendalian Internal, Sistim Informasi Akuntansi Terhadap Efisiensi Biaya, Efektivitas Pelayanan Medis dan Non Medis Pada PT Rumah Sakit Pelni
Authors: Rivan Wibowo
Published: February 2020

The purpose of this study was to determine the effect of the Internal Control and Accounting Information Systems Cost Efficiency And Effectiveness Of Medical And Non-Medical Services (Studies in Hospital Pelni). The independent variable of this study is the Internal Control and Accounting Information Systems. The dependent variable of this study is Cost-Efficiency and Effectiveness of Medical and Non-Medical Services. The research method used is explanatory survey with a cross-sectional methods, while the sampling technique is convenience sampling with instruments of research using questionnaires in 58 respondents in Pelni Hospital. Data were analyzed quantitatively by regression analysis. Results of the study (1) Internal Control Influential Efficiency Gains and Cost Effectiveness of Medical and Non-Medical Services (2) Impact of Accounting Information Systems Gains Efficiency And Cost Effectiveness of Medical and Non-Medical Services (3) Simultaneously Internal Control and Accounting Information Systems Influential Significant Cost Efficiency And Effectiveness of Medical and Non-Medical Services.    

 Keywords: Internal Control, Accounting Information Systems, Efficiency and Cost Effectiveness of Medical and Non-Medical Services
Pengaruh Likuiditas Dan Profitabilitas Perusahaan Terhadap Firm's Value Pada Perusahaan Yang Melakukan IPO Di Tahun 2018
Authors: Rudy
Published: February 2020

Penelitian ini bertujuan untuk menganalisis pengaruh likuiditas dan profitabilitas perusahaan terhadap firm's value. Firm's value diukur dengan pendekatan price-to book value (PBV). Populasi penelitian ini adalah perusahaan yang melakukan initial public offerings (IPO) pada tahun 2018. Penentuan sampel dilakukan dengan teknik purposive sampling. Metode analisis menggunakan analisis statistik inferensial dengan  regresi linear berganda menggunakan program SPSS 23.00 for Windows. Hasil penelitian ini menunjukkan bahwa likuiditas dan profitabilitas perusahaan berpengaruh signifikan secara simultan terhadap firm's value. Hasil pengujian secara parsial menunjukkan bahwa likuiditas perusahaan berpengaruh negatif dan tidak signifikan terhadap firm's value sementara profitabilitas perusahaan berpengaruh positif dan signifikan terhadap firm's value.
Pengaruh Likuiditas dan Solvabilitas Terhadap Profitabilitas (Studi Kasus Pada Perusahaan Manufaktur Sub sektor Makanan dan Minuman yang Terdaftar di BEI Periode Tahun 2012-2016)
Authors: Nadeak Thomas , F.Pratiwi
Published: February 2020

Penelitian ini bertujuan untuk mengetahui Pengaruh Likuiditas dan Solvabilitas Terhadap Profitabilitas (Studi Kasus pada Perusahaan Makanan dan Minuman yang terdaftar di Bursa Efek Indonesia (BEI) Periode 2012-2016). Penelitian menggunakan metode penelitian kuantitatif. Teknik yang digunakan dalam pengambilan sampel yaitu Nonprobability Purposive Sampling. Nonprobability Purposive Samling yaitu teknik penentuan sampel dengan pertimbangan tertentu. Untuk mengumpulkan data, menggunakan dokumentasi. Teknik analisis yang digunakan dalam penelitian ini adalah analisis regresi linear berganda. Nilai signifikan untuk variabel Current Ratio = 0,001, Debt to Equity Ratio = 0,032 nilai variabel tersebut signifikan < 0,05, sehingga Carrent Ratio dan Debt to Equity Ratio secara parsial berpengaruh terhadap Return On Asset. Nilai R square yang diperoleh sebesar 0,225 menentukkan bahwa Profitabilitas dipengaruhi 22,5% oleh variabel bebas (Curret Ratio dan Debt to Equity Ratio) dan 77,5% merupakan pengaruh faktor yang lain yang tidak diteliti dalam penelitian ini.

Kata Kunci : Likuiditas, Solvabilitas dan Profitabilitas
Lorentzian para-Sasakian Manifolds Admitting a New Type of Quarter-symmetric Non-metric ξ-connection
Authors: Chaubey S. K. , De Uday Chand
Published: February 2020

We define a new type of quarter-symmetric non-metric $\xi$-connection on an $LP$-Sasakian manifold and prove its existence. We provide its application in the general theory of relativity. To validate the existence of the quarter-symmetric non-metric $\xi$-connection on an $LP$-Sasakian manifold, we give a non-trivial example in dimension $4$ and verify our results.
PENINGKATAN KEMAMPUAN MEMBACA DAN MENGHITUNG SISWA KELAS TINGGI DI SDI KENDA MELALUI TAMBAHAN JAM PELAJARAN
Authors: Jediut Mariana , Fransiska Jaiman Madu  , Asterius Juano
Published: February 2020

Abstrak: Penelitian ini dilatarbelakangi oleh rendahnya kemampuan siswa sekolah dasar berkaitan dengan materi pembelajaran menghitung dan membaca di SDI Kenda. Adapun tujuan penelitian ini adalah untuk mendeskripsikan keefektifan tambahan jam pelajaran bagi siswa yang memiliki kemampuan rendah terkait menghitung dan membaca. Jenis penelitian yang digunakan adalah penelitian tindakan (Action Research). Tindakan tersebut dilakukan secara berulang-ulang dan setiap tindakan diawali dengan perencanaan, pemberian treatmen (tindakan), observasi, dan refleksi. Berdasarkan hasil penelitian, pemberian tambahan jam pelajaran bagi siswa yang berkesulitan membaca dan menghitung dapat dikatakan efektif. Hal ini terbukti pada nilai yang diperoleh siswa pada setiap pertemuan, yakni adanya peningkatan dari pemberian treatmen I, II, dan III
KASUS ABORSI DAN PEMBUANGAN BAYI SEBAGAI KEPRIHATINAN GEREJA DAN IMPERATIF EDUKATIFNYA BAGI DUNIA PENDIDIKAN
Authors: S. Lon Yohanes
Published: February 2020

The disposal of infants and criminal provocatus abortion committed by students  have been a concern of the Manggarai community today. According to Indonesian state law and the teachings of the Church, the two acts violate the law, norms and ethics in society and religion. These actions result in eliminating lives that are believed to originate from God. This research found that they are caused by free sex behavior, lack of sexual education and lack of pro-life culture and pro-life education. Therefore, this article recommends that educational institutions and religious institutions, especially Catholic religions should be more active in promoting sexual education for adolescents, building a pro-life culture for the whole community and developing effective pastoral care. Churches and educational institutions should not only function to provide social, religious and educational sanctions, but mainly to become institutions that are present in the suffering and anxiety of young people who are entangled in problems. By doing such things,  the disposal of infants and abortion cases are expected to be reduced or lost.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW TEMA PRISTIWA DALAM KEHIDUPAN PADA SISWA KELAS V SDN GADUNG DRIYOREJO GRESIK
Authors: Desi Eka Pratiwi
Published: February 2020

Penelitian ini bertujuan untuk menerapkan model pembelajaran jigsaw di sekolah dasar. Jenis penelitian ini adalah deskriptif kualitatif, teknik pengumpulan data menggunakan observasi, tes dan angket. Berdassarkan hasil penelitian diperoleh data sebagai berikut. (1) data aktivitas guru mendapatkan presentase 82,3% dengan konversi nilai 81%-100% termasuk dalam kategori sangat baik. (2) data aktivitas siswa mendapatkan presentase sebesar 89,6% dengan konversi nilai 81%- 100% termasuk dalam kategori sangat aktif. (3) hasil Kuesioner respon siswa mendapatkan presentase sangat setuju sebesar 62% dan tidak  setuju sebesar 36% data respon siswa menunjukkan adanya peningkatan. (4) hasil belajar secara klasikal terpenuhi sebesar 87,24%, hanya terdapat 3 dari 29 siswa yang nilainya dibawah 75  Sehingga termasuk dalam kategori tuntas.

 

Kata Kunci : Model Pembelajaran Kooperatif, Jigsaw, Sekolah Dasar
PEMBELAJARAN MATEMATIKA MELALUI PEMECAHAN MASALAH: URGENSI DAN PENERAPANNYA
Authors: Helmon Arnoldus , Sennen Eliterius
Published: February 2020

Kemampuan pemecahan masalah merupakan salah satu kompetensi penting pada abad 21 yang ditandai oleh kompetisi sumber daya manusia. Untuk itu, pembelajaran di skeolah, termasuk pembelajaran matematika, harus mampu menjawab tuntutan tersebut. Pembelajaran matematika harus mampu membuat siswa belajar tentang dan melalui pemecahan masalah. Sejalan dengan hal tersebut, guru harus memperhatikan berbagai faktor yang mempengaruhi keefektifan pembelajaran pemecahan masalah.
MEMULAI, MELAKSANAKAN, DAN MENYELESAIKAN PERUBAHAN DI SEKOLAH
Authors: Tarsan Vitalis
Published: February 2020

Abstract: Schools that are able to survive in the future are schools that embraced change. Not only embracing but managing it cleverly. Schools must be changed because the world around them changes too. When a school plans a change, it must be started from the planning of the change itself, which is determining what must be made, who changes it, when it is changed, why it is changed, and how it is changed. After everything was clear, then the school entered the movement stage. In the process of movement, schools must break through comfort zones, sell the change, strengthen individual capacity, provide financial support and facilities and strengthen school governance systems. After the school community is able to stand up, run, and race in the expected changes; then the school ensuring whether the planned changes have been carried out according to the plan or not. Then the school needs to do an evaluation and subsequently, make continuous improvements. And finally, give credit to the people involved in the change and celebrate the success of the change together.
MELESTARIKAN KEARIFAN LOKAL DAERAH MANGGARAI MELALUI KEGIATAN MENDONGENG PADA ANAK SEKAMI USIA SD DI PAROKI SANTU NIKOLAUS KELURAHAN GOLO DUKALMELESTARIKAN KEARIFAN LOKAL DAERAH MANGGARAI MELALUI KEGIATAN MENDONGENG PADA ANAK SEKAMI USIA SD DI PAROKI SA
Authors: Fransiska Jaiman Madu  , Mariana Jediut  , Maria Rahayu Anwar
Published: February 2020

MELESTARIKAN KEARIFAN LOKAL DAERAH MANGGARAI MELALUI KEGIATAN MENDONGENG PADA ANAK

SEKAMI USIA SD DI PAROKI SANTU NIKOLAUS

KELURAHAN GOLO DUKAL

Abstract: Storytelling is a form of oral tradition as a means of communication and recording the events of life or human civilization of the past. Fairy tales are one of the places to preserve local wisdom. As for the fairy tale here is the fairy tale of the Manggarai area. Manggarai fairy tales were chosen with the aim of introducing various local wisdoms contained in these tales. this activity aims to; 1) introducing various local wisdoms in the Manggarai area to children of primary school age; 2) growing love for various local wisdoms in the Manggarai area; 3) grow and develop children's mental and ability to speak in frontother friends.in its implementation, this activity goes through several stages namely; 1) preparation stage which includes coordination of the service team, contacting partners, determining the schedule of activities, and procuring Manggarai folklore books; 2) the stage of implementation of activities which includes mentoring and training fordevelop the ability of children SEKAMI in knowing tales and storytelling.this activity aims to improve the ability of children SEKAMI in knowing more stories and good ways of storytelling; 3) the final stage includes storytelling and evaluation activities related to the effectiveness of service activities. this activity went well and the objectives of the activity were achieved.
Can innovative trend analysis identify trend change points?
Authors: Alashan Sadık
Published: February 2020

Trends in temperature series are the main cause of climate change. Because solar energy directs hydro-meteorological events and increasing variations in this resource change the balance between events such as evaporation, wind, and rainfall. There are many methods for calculating trends in a time series such as Mann-Kendall, Sen's slope estimator, Spearman's rho, linear regression and the new Sen innovative trend analysis (ITA). In addition, Mann-Kendall's variant, the sequential Mann Kendall, has been developed to identify trend change points; however, it is sensitive to related data as specified by some researchers. Şen_ITA is a new trend detection method and does not require independent and normally distributed time series, but has never been used to detect trend change points. In the literature, multiple, half-time and multi-durations ITA methods are used to calculate partial trends in a time series without identifying trend change points. In this study, trend change points are detected using the Şen_ITA method and named ITA_TCP. This approach may allow researchers to identify trend change points in a time series. Diyarbakır (Turkey) is selected as a study area, and ITA_TCP has detected trends and trends change points in monthly average temperatures. Although ITA detects only a significant upward trend in August, given the 95% statistical significance level, ITA_TCP shows three upward trends in June, July and August, and a decreasing trend in September. Critical trend slope values are obtained using the bootstrap method, which does not require the normal distribution assumption.
PENGARUH TINGKAT PENDIDIKAN PEGAWAI TERHADAP KINERJA PEGAWAI PADA KANTOR POS PEMERIKSA RANTAUPRAPAT
Authors: Nasution Novrihan Leily
Published: February 2020

Tujuan penelitian ini adalah untuk mengetahui pengaruh Tingkat pendidikan terhadap kinerja karyawan pada kantor pos pemeriksa rantauprapat. Peneliti menarik hipotesis yaitu tingkat pendidikan mempunyai pengaruh yang positif terhadap kinerja karyawan  pada Kantor Pos Pemeriksa Rantauprapat. Dalam penelitian ini diambil 27 sampel dari jumlah pegawai pada Kantor Pos Pemeriksa Rantauprapat. Adapun variabel dalam penelitian meliputi 2 variabel yaitu Tingkat Pendidikan sebagai variabel X, dan Kinerja Pegawai sebagai variabel Y. Pengujian hipotesis menggunakan uji t dan koefisien regresi, dengan tingkat signifikan 5%. Penganalisaan data mengunakan software pengolahan data statistik yaitu SPSS versi 22.00 for windows. Teknik analisa data pada penelitian ini adalah statistic deskriptif, analisis regresi linier sederhana, uji validitas dan uji reliabilitas. Berdasarkan hasil analisis uji t variabel independent adalah Tingkat Pendidikan (X) sebesar 6,106 ≥ ttabel  sebesar 2,064 ini berarti  H0 ditolak dan H1 diterima atau dengan kata lain tingkat pendidikan berpengaruh terhadap kinerja pegawai. Dari hasil koefisien determinan (R2) didapat nilai sebesar 0,599. nilai sebesar 0,599 ini menunjukkan bahwa Kinerja Pegawai (Y) dapat menjelaskan Tingkat Pendidikan (X) secara bersama – sama sebesar 59,9% dan sisanya 40,1% dipengaruhi oleh faktor lain diluar variabel independent.
PENGARUH HARGA, GAYA HIDUP, DAN FITUR PRODUK TERHADAP KEPUTUSAN PEMBELIAN SMARTPHONE SAMSUNG PADA TOKO NANDA PONSEL AEK NABARA
Authors: Hendry Raja Saul Marto , Simanjuntak Daslan
Published: February 2020

Penelitian ini bertujuan untuk untuk mengetahui pengaruh harga, gaya hidup, dan fitur produk terhadap keputusan pembelian smartphone Samsung pada Toko Nanda Ponsel Aek Nabara, baik secara parsial maupun simultan. Sampel dalam penelitian ini berjumlah 96 orang yang diambil dengan menggunakan menggunakan metode accidental sampling. Metode analisis yang dipergunakan adalah metode analisis deskriptif, uji asumsi klasik, analisis regresi linier berganda, dan uji hipotesis.Hasil pengujian hipotesis secara parsial (uji t) menunjukkan bahwa harga (X1), gaya hidup (X2), dan fitur produk (X3) berpengaruh positif dan signifikan terhadap keputusan pembelian smartphone Samsung pada Toko Nanda Ponsel Aek Nabara. Hasil uji hipotesis secara simultan (uji F) menunjukkan bahwa harga (X1), gaya hidup (X2), dan fitur produk (X3) berpengaruh positif dan signifikan terhadap keputusan pembelian smartphone Samsung pada Toko Nanda Ponsel Aek Nabara. Keputusan pembelian dapat dijelaskan oleh variabel Harga, gaya hidup, dan fitur produk sebesar 50,8% dan sisanya sebesar 49,2% dijelaskan variabel lain yang tidak bahas dalam penelitian ini, misalnya : kualitas produk, ekuitas merek, dan sebagainya.
PENGARUH KUALITAS PELAYANAN DAN HUBUNGAN EMOSIONAL TERHADAP LOYALITAS NASABAH PADA PT. BANK PERKREDITAN RAKYAT (BPR) NBP 16 RANTAUPRAPAT
Authors: Hendry Raja Saul Marto , Simanjuntak Daslan
Published: February 2020

Penelitian ini bertujuan untuk untuk mengetahui pengaruh kualitas pelayanan dan hubungan emosional terhadap loyalitas nasabah pada PT. Bank Perkreditan Rakyat (BPR) NBP 16 Rantauprapat, baik secara parsial maupun simultan. Sampel dalam penelitian ini berjumlah 92 orang nasabah BPR NBP 16 Rantauprapat. Metode analisis yang dipergunakan adalah metode analisis deskriptif, analisis regresi linier berganda, dan uji hipotesis.Hasil pengujian hipotesis secara parsial (uji t) menunjukkan bahwa kualitas pelayanan dan hubungan emosional secara parsial berpengaruh positif dan signifikan terhadap loyalitas nasabah pada PT. Bank Perkreditan Rakyat (BPR) NBP 16 Rantauprapat. Hasil uji hipotesis secara simultan (uji F) juga menunjukkan bahwa kualitas pelayanan dan hubungan emosional secara bersama-sama berpengaruh positif dan signifikan terhadap loyalitas nasabah pada PT. Bank Perkreditan Rakyat (BPR) NBP 16 Rantauprapat. Berdasarkan hasil uji determinasi diketahui bahwa loyalitas nasabah pada PT. Bank Perkreditan Rakyat (BPR) NBP 16 Rantauprapat mampu dijelaskan oleh kualitas pelayanan dan hubungan emosional sebesar 63,1%, sedangkan sisanya 36,9% dijelaskan oleh faktor lain yang tidak dibahas dalam penelitian ini.
PENGARUH MASA KERJA, KEPUASAN KERJA DAN LINGKUNGAN KERJA TERHADAP KOMITMEN ORGANISASI PADA PT. LINGGA TIGA SAWIT SIGAMBAL
Authors: Hendry Raja Saul Marto , Simanjuntak Daslan
Published: February 2020

Tujuan penelitian ini adalah: 1) Untuk mengetahui pengaruh masa kerja terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal, 2) untuk mengetahui pengaruh kepuasan kerja terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal dan untuk mengetahui pengaruh lingkungan kerja terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal. Hipotesis penelitian adalah variabel masa kerja berpengaruh signifikan terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal, variabel kepuasan kerja berpengaruh signifikan terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal dan variabel lingkungan kerja berpengaruh terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal. Populasi dari penelitian ini adalah karyawan pada PT. Lingga Tiga Sawit Sigambal. Jumlah populasinya adalah sebanyak 39 responden. Hasil penelitian menunjukkan bahwa: 1) masa kerja berpengaruh positif dan signifikan terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal, kepuasan kerja berpengaruh positif dan signifikan terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal dan lingkungan kerja berpengaruh positif dan signifikan terhadap komitmen organisasi pada PT. Lingga Tiga Sawit Sigambal. Kata kunci: Masa kerja, Kepuasan kerja, Lingkungan kerja, Komitmen organisasi
PENGARUH MOTIVASI DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN PADA CV MUSTY JAYA
Authors: Hendry Raja Saul Marto , Simanjuntak Daslan
Published: February 2020

Penelitian ini bertujuan untuk menganalisis pengaruh motivasi dan disiplin kerja terhadap kinerja karyawan pada pada CV Musty Jaya. Dalam penelitian ini mengambil sampel sebanyak 30 karyawan, jenis data dan sumber data yang digunakan dalam penelitian ini dengan menggunakan data primer yang didapat dari wawancara dan jawaban responden berupa pengisian kuesioner yang disebarkan kepada karyawan CV Musty Jaya. Adapun Uji istrumen yang digunakan untuk menguji layak atau tidaknya suatu pertanyaan adalah uji Validitas dan uji Reliabilitas. Metode analisis data yang digunakan dalam penelitian ini adalah analisis regresi berganda, uji F, uji t, dan uji koefisien determinasi. Sebelumnya dilakukan uji asumsi klasik berupa uji multikolonieritas, uji heteroskedastisitas, dan uji normalitas. Hasil penelitan menunjukan bahwa adanya pengaruh antara motivasi dan disiplin kerja terhadap kinerja karyawan yang signifikan. Dari kedua variabel tersebut variabel disiplin kerja berpengaruh lebih besar terhadap kinerja karyawan dibandingkan dengan motivasi. Dengan adanya penelitian ini dapat disimpulkan bahwa karyawan memerlukan motivasi dan pendisiplinan dalam meningkatkan kinerja, terutama perusahaan harus lebih meningkatkan motivasi kerja kepada karyawan CV Musty Jaya.
МІЖНАРОДНИЙ ДОСВІД АКРЕДИТАЦІЇ СУДОВО-ЕКСПЕРТНИХ УСТАНОВ І ЙОГО ВИКОРИСТАННЯ В УКРАЇНІ
Authors: Хоша В. В.
Published: February 2020

Мета статті – узагальнити міжнародний досвід акредитації судово-експертних установ та конкретизувати можливості його використання в Україні, запропонувати напрями розвитку організаційних засад акредитації судово-експертних установ в Україні, що передбачають, зокрема, розроблення відповідного комплексного нормативного акта. У процесі дослідження закцентовано на уніфікації процесу акредитації судово-експертних установ для спільного визнання результатів досліджень незалежно від того, у якій країні вони зроблені, підвищення їх якості, забезпечення обміну досвідом і вирішення інших питань, зумовлених діяльністю з оцінки відповідності. З’ясовано проблеми, які постають через розбіжності правових систем окремих країн і термінологічну неузгодженість, а також через першочергове розроблення стандартів для регулювання акредитації випробувальних лабораторій, яким не характерні специфічні ознаки судово-експертних установ і особливості проваджуваної такими установами діяльності. Обґрунтовано доцільність започаткування в Україні комплексного акта з питань акредитації судово-експертних установ (їх підрозділів) з огляду на вимоги стандартів ISO/IEC 17025, ISO/IEC 17020 і Настанови ILAGG-19:08/2014 «Модулі в судово-експертній діяльності», сформовано пропозиції щодо його розроблення. Достовірність отриманих результатів і висновків забезпечено загальнонауковими і спеціальними методами пізнання, зокрема: порівняльно-правовим досліджено основні підходи до нормативної регламентації розглядуваних процесів; системно-структурним аналізом з’ясовано сутність досліджуваних категорій і правових явищ, їх елементно-компонентний склад; історико-правовим здійснено ретроспективний аналіз окремих проблем розвитку організаційних засад акредитації судово-експертних установ; за допомогою моделювання сформульовано висновки і пропозиції щодо розроблення комплексного акта з питань акредитації судово-експертних установ (їх підрозділів) з огляду на вимоги стандартів ISO/IEC 17025, ISO/IEC 17020 і Настанови ILAGG-19:08/2014 «Модулі в судово-експертній діяльності».Ключові слова: акредитація; судово-експертні установи; судово-експертна діяльність; стандарт; модуль; настанова.