bluuebunny/crossref_metadata_2025 huggingface dataset:
VARIACIÓN MORFOLÓGICA DE FRUTOS Y SEMILLAS DE CACAO (Theobroma cacao L.) DE PLANTACIONES EN TABASCO, MÉXICO
Authors: Ramírez-Guillermo Miguel Á. , Lagunes-Espinoza Luz C. , Ortiz-García Carlos F. , Gutiérrez Osman A.
Published: March 2020

Conocer la diversidad morfológica y genética presente en plantaciones, especialmente en especies nativas, es importante para el manejo y utilización de los recursos vegetales disponibles. Los objetivos del estudio fueron determinar la variación morfológica del fruto y semillas de cacao existente en plantaciones comerciales (PL) establecidas por semilla en Tabasco, México, e identificar colectas en estas PL con características sobresalientes asociadas al rendimiento. La recolecta de frutos se realizó en 33 PL de siete municipios de Tabasco y un municipio de Chiapas. En total 101 árboles fueron muestreados en PL; además, se incluyeron 69 accesiones de bancos de germoplasma CEHUI-INIFAP y Ex-Finca el Danubio como germoplasma de referencia. La caracterización incluyó 11 características cualitativas y 18 cuantitativas del fruto y de la semilla. Se calcularon estadísticos descriptivos básicos, así como los coeficientes de correlación de Pearson y se realizó un análisis de coordenadas principales para conocer los patrones de variación de las características evaluadas, su relación e identificar la variables que más discriminan entre colectas. En PL la forma dominante del fruto fue cundeamor (26.8 %) seguida del amelonado (22.1 %) y no se observaron frutos con forma criollo. La forma del fruto, junto con características como constricción basal y rugosidad escasa, reflejan la hibridación de cacao criollo × forastero del bajo Amazonas que se ha dado en estas plantaciones a través del tiempo. Otras características como peso, longitud y diámetro del fruto también presentaron intervalos de variación amplios en PL. La variación en peso del fruto, espesor del caballete, peso de semilla, proporción del mesocarpo, el número y peso total de semillas por fruto y pigmentación del mucílago definieron la distribución espacial entre las colectas de PL. Las colectas Tc29487, Tc29745, Tc29747, Tc29749 y Tc29775 presentaron una combinación sobresaliente de número y peso total de semillas por fruto, proporción de mesocarpo e índice de fruto.
MODIFICACIÓN DEL HÁBITAT PARA Lysiloma latisiliquum (L.) Benth. (TZALAM) POR EL CAMBIO CLIMÁTICO
Authors: Garza-López Miriam , Ortega-Rodríguez Juan M. , Zamudio-Sánchez Francisco J. , López-Toledo José F. , Domínguez-Álvarez Francisco A. , Sáenz-Romero Cuauhtémoc
Published: March 2020

El modelaje del hábitat climático para la distribución potencial de especies es una herramienta útil para proyectar los impactos del cambio climático e implementar estrategias de manejo para atenuar sus efectos negativos. El objetivo del presente estudio fue determinar la distribución potencial del hábitat climático contemporáneo y futuro (década centrada en el año 2030) de Tzalam, Lysiloma latisiliquum (L.) Benth., árbol de bosque seco y caducifolio de la Península de Yucatán. Se obtuvieron registros geográficos para L. latisiliquum del Inventario Nacional Forestal y Suelos (INFS) y rejillas climáticas para clima contemporáneo (promedio 1961-1990) y futuro (década centrada en 2030), con escenarios de concentraciones intermedias de gases de efecto invernadero (6.0 W m-2). Se modeló la distribución potencial con el algoritmo MaxEnt. Para el año 2030 se proyecta una pérdida de hábitat climático del 43 % en relación con el contemporáneo, confinándose principalmente en el centro de la Península de Yucatán. Se propone recolectar semilla en la distribución actual, principalmente en las poblaciones cercanas a la costa, y plantar en el centro de la Península; además, conservar germoplasma ex situ con el propósito de reacoplar las poblaciones al clima futuro y asegurar la conservación de la diversidad genética del Tzalam.
Laguerre–Gaussian vortex mode generation from astigmatic semiconductor microcavity
Authors: Nakagawa Kohki , Yamane Keisaku , Morita Ryuji , Toda Yasunori
Published: March 2020

Laguerre–Gaussian (LG) vortex mode generations are demonstrated by employing the optical injection of a higher-order transverse mode into a vertical cavity surface emitting laser. In addition to the coherent LG injection, Hermite–Gaussian (HG) injection also enable LG mode generation, where the chirality is controllable by the HG mode angle of the injection beam. The result can be well understood when we consider the astigmatic Gouy phase shifts within the microcavity. HG induced vortex generation eases the symmetrical requirements of the cavity and thus extends flexibility as regards the design and fabrication of vortex lasers.
Competitive activity of elite female tennis players on courts with different cover types
Authors: Skorodumova Anna , Baranov Igor , Tarpischeva Aliya , Semenova Snegana , Tarpishchev Filipp
Published: March 2020

The purpose is to identify and compare the indicators of external parameters of load experienced by elite fe- male tennis players during competitive matches on courts with various covers.

Methods and organization of the research. We used the following methods of research: 1) educational observa- tion using stenographic record of each shot and timing of each point; 2) methods of mathematical statistics. The recording of competitive matches was held at Grand Slam tournaments and at other major international competitions played on courts with "slow" and "fast" cover. We recorded and analyzed 53 matches. It was im- portant to solve two problems – to get quantitative indicators of external parameters of load experienced by elite female athletes during matches on courts with various covers and to compare them. In order to have the right to compare, it was necessary to make sure that there was no difference in the excellence level of female tennis players who took part in the competition. For this purpose, we calculated the rating of pairs and the difference of player ratings in each pair. We selected the pairs with no significant excellence difference who took part in the same tournaments with various court covers. We selected 20 matches on each cover type.

Research results. Comparative analysis of obtained data resulted in identification of significant difference of all indicators of external parameters of load experienced during matches on "fast" and "slow" courts.

Conclusion. The authors come to the conclusion that the study results can be used in adjustment of training process plans for athletes during preparation for tournaments on "fast" and "slow" covers at the stages of sport perfection and sport excellence, in lectures for sport university students and coaches at advanced training courses, and in writing qualification papers.
Professional competencies of journalism students in armenia: structure and content
Authors: Chatinyan Ashot , Baghdasaryan Arevhat
Published: March 2020

Aim of the research: to study the structure of competencies of journalism students in the Republic of Armenia. Research methods and organization. We used the following methods in our research: study and analysis of scientific literature, sociological survey, and mathematical statistics. Four groups of respondents took part in the sociological survey: over 100 undergraduate and graduate journalism students, 20 journalism lecturers in 6 leading universities of Armenia, including the Armenian State Institute of Physical Culture and Sport. The survey involved 20 journalists from various including major TV channels «Armenian Public Television»,
«Armenia TV», «Kentron» and «Erkir media». The overwhelming majority of respondents were women – 120 people. Based on the analysis of scientific literature, we identified the following groups of competencies in the model of journalism education: theoretical, practical, personal, and interpersonal groups including specific components.
Research results. The research revealed that practical competencies (46%) play a crucial role in the structure of practical competencies essential for journalism students. Theoretical (30%) and personal competencies (14%)
take second place. According to the respondents, interpersonal competencies are the least significant for the professional activity of a journalist (10%). We studied the opinion of respondents on the significance of spe- cific skills and abilities for journalism students. Journalism educators and current journalists shared certain insights into the issue of theoretical competencies. It is particularly interesting that all three groups of respond- ents had the same opinion on interpersonal competencies.
Conclusion. The analysis of survey results revealed the hierarchy of competency groups of journalism stu- dents, and the range of specific skills abilities contributing to effective professional activities. However, it is important to take into account the peculiarities of the future professional activity of journalism students in sport universities when building specific capacities and skills.
CONSTRUCTION OF THE TIME-CURRENT CHARACTERISTICS ON THE BASIS OF THE MATHEMATICAL MODELS OF THE THERMAL PROTECTION OBJECTS
Authors: Pil'cov Mihail
Published: March 2020

The article is devoted to obtaining standard time-current characteristics on the basis

of mathematical models of thermal protection objects used in modern automatic circuit breakers

equipped with digital releases.
A PARTICIPAÇÃO DA EMPRESA JÚNIOR PARA A FORMAÇÃO DO ENGENHEIRO DE PRODUÇÃO:
Authors: Alves de Sousa Douglas , Dias Moreira Fabiano , Dias Moreira Flávio , Bittencourt Nazare Tiago , Ciqueira de Oliveira Wesley
Published: March 2020

Este estudo aborda a participação da empresa júnior para a formação do engenheiro de produção por meio da análise dos alunos e egressos. Tal abordagem se faz necessária pelo número de entidades encontradas no país, o custo/benefício dos trabalhos e a arrecadação monetária adquirida pelas EJ´s. O intento deste estudo é enfatizar a participação da EJ na transcorrência da formação do estudante a partir da análise dos alunos e egressos das Faculdades Integradas de Cataguases – Minas Gerais. Fundamentalmente, utilizou-se de um questionário para aplicação das perguntas aos participantes nas áreas da gestão, empreendedorismo e consultoria. Por conseguinte, foi elaborada uma análise por meio dos resultados da pesquisa. Os dados foram disponibilizados em gráficos para melhor visualização. Como melhores resultados, apresentam-se a formação de líderes e trabalho em equipe, os quais concordam plenamente, com 83,3% dos alunos e 88,9% dos egressos, como também o ingresso no mercado de trabalho, com 83,3% dos alunos e 77,8% dos egressos.
Risk Factors and Potential Solutions for the Construction Industry in China
Authors: Chen Yutian , Chong Oswald
Published: March 2020

The Chinese construction industry (CCI) has grown to be one of the largest in the world within the last 10 years. The size of the CCI is on par with many developed nations, despite it being a developing country. Despite its rapid growth, the productivity and profitability of the CCI is low compared to similar sized construction industries. In addition to the low efficiency of the CCI, the minimal documented performance information collected, shows projects being completed over budget, over the scheduled time, with poor quality of work. A literature research was performed on other developing countries similar to the CCI, to identify if there were any solutions that had been proven to improve the productivity and performance of a construction industry. It was found that Vietnam, The Kingdom of Saudi Arabia and India were the closest to China with enough documentation on their construction industry. Both countries identified the Best value Approach (BVA) as the only solution with documented performance showing it could solve the issues developing countries face with their construction industry. This paper proposes that more research should be performed looking into the ability of the CCI to implement the BVA.
HUBUNGAN MINAT BELAJAR KEJURUAN DAN PRESTASI BELAJAR KEWIRAUSAHAAN DENGAN MINAT BERWIRAUSAHA
Authors: Fikri Rahman Heny , Samidjo  , Handayono Nurcholis Arifin
Published: March 2020

Abstrak: Tujuan penelitian ini adalah untuk mengetahui: (1) hubungan antara minat belajar kejuruan dan prestasi belajar kewirausahaan dengan minat berwirausaha; (2) hubungan antara minat belajar kejuruan dengan minat berwirausaha; dan (3) hubungan antara prestasi belajar kewirausahaan dan minat berwirausaha. Metode penelitian ini adalah ex-post facto, dengan populasi seluruh siswa kelas XI Teknik Kendaraan Ringan. Sampel diambil secara acak berjumlah 52 siswa. Instrumen yang digunakan adalah kuesioner untuk minat belajar kejuruan dan minat berwirausaha, serta dokumentasi untuk prestasi belajar kewirausahaan. Teknik analisis data menggunakan analisis regresi ganda. Hasil penelitian menunjukkan: (1) terdapat hubungan yang signifikan antara minat belajar kejuruan dan prestasi belajar kewirausahaan dengan minat berwirausaha; (2) terdapat hubungan yang signifikan antara minat belajar kejuruan dengan minat berwirausaha; dan (3) terdapat hubungan yang signifikan antara prestasi belajar kewirausahaan dan minat berwirausaha.

 

Abstract: This study aim to find out : (1) the relationship between vocational learning interest and entrepreneurial learning achievement with entrepreneurial interest; (2) the relationship between vocational learning interest and entrepreneurial interest; and (3) the relationship between entrepreneurial learning achievement and entrepreneurial interest. This research method is ex-post facto with a population of all students of class XI Teknik Kendaraan Ringan. Samples were taken randomly totaling 52 students. The instrument used was a questionnaire for vocational learning interest and entrepreneurial interest and documentation for entrepreneurial learning achievement. Data analysis techniques using multiple regression analysis. The results showed: (1) there was a significant relationship between interest in vocational learning and entrepreneurial learning achievement with interest in entrepreneurship; (2) there was a significant relationship between interest in vocational learning with interest in entrepreneurship; and (3) there was a significant relationship between entrepreneurial learning achievement and entrepreneurial interest.
ANALISA ALAT PERMAINAN EDUKATIF ANAK
Authors: Wiyogo Wiyogo , Perkasa Petrisly , Fachrezzy Rifo
Published: March 2020

Abstrak: Alat permainan edukatif memiliki manfaat penting dalam perkembangan kognitif anak, keterampilan motorik, dan kebugaran anak. Desain dan pembuatan yang dilakukan di Laboratorium Pendidikan Teknik Mesin Universitas Palangka Raya perlu dianalisis untuk mengetahui sejauh mana alat ini berguna. Hal pertama yang harus dilakukan adalah mempelajari literatur dan kemudian mengidentifikasi variabel penelitian yang bertujuan mendapatkan gambaran tentang apa yang dibutuhkan pengguna. Dari hasil kuesioner awal, tiga variabel diperoleh, yaitu desain, permainan mudah, dan keamanan. Data penelitian lebih lanjut yang telah diperoleh dengan nilai indeks dari produk yang diperoleh adalah 94,83%.

 

Abstract: Educational game tools have important benefits in a child's cognitive development, motor skills, and children's fitness. The design and manufacturing done at the Mechanical Engineering Education Laboratory of Palangka Raya University needs to be analyzed to find out how far the tool is useful. The first thing to do is to study the literature and then identify research variables aimed at getting a picture of what the user needs. From the results of the initial questionnaire, three variables were obtained, namely design, easy game and safety. Further research data that have been obtained with an index value of the products obtained are 94.83%.
Strength of Pressure Equipment Components Taking into Account the Deterioration Concept
Authors: Nicolof Vali-Ifigenia , Sima Teodor , Durbaca Ion
Published: March 2020

Relationships for critical and allowable normal stress and shear stress were proposed, as well as the strength conditions with respect to critical state and with respect to allowable state, respectively, in the case of static loading and cyclic loading, taking into account the concept of deterioration. Values for the deterioration were obtained against experimental data for tubular specimens, with only one load, with two loads acting simultaneously, as well as for samples with rectangular cross-section.
Influence of Precipitating Agent Concentration on Nanoparticles Size and Magnetic Properties of Zinc Ferrites
Authors: Trandafir Elena Vasilica , Ciocarlan Radu , Pui Aurel , Hempelmann Rolf , Caltun Ovidiu Florin
Published: March 2020

A series of Zn ferrite nanoparticles was prepared by varying the concentration of precipitating agent (NaOH) in the range of 1 � 5 M. Carboxymethylcellulose (CMC) was used as capping agent for stabilizing the particles and to prevent agglomeration. The synthesis done at low temperature was followed by a thermal treatment at 500ºC for 6 h in air. The crystallite size determined using Scherer formula ranged between 8 - 10 nm while the nanoparticles average size observed by Transmission Electron Microscopy varied in between 7-10 nm showing that the increase of coprecipitation agent concentration influences the particles growth. Vibrating sample magnetometry confirmed the strong influence that nanoparticles morphology and size play on superparamagnetic properties of Zn ferrite.
Chemiluminescent Immunoassay versus Enzyme Linked Immunosorbent Assays for IgA Anti-Tissue Transglutaminase Antibodies Assessment in Celiac Disease Children
Authors: Belei Oana , Iacob Emil Radu , Iacob Daniela , Amaricai Elena , Marginean Otilia
Published: March 2020

Recent describing of atypical, silent and latent form of celiac disease (CD) increased the preocupation for screening methods.To perform a comparative study of immunoglobulin A (IgA) anti tissue-transglutaminase (tTG) antibodies (Ab) assessment using chemiluminescence versus Enzyme Linked Immunosorbent Assay (ELISA).The study included two lots.The first lot consisted in 35 biopsy confirmed CD children aged between two and 18 years.The control lot included 40 children with normal duodenal morphology on intestinal biopsy that underwent upper digestive endoscopy for different gastrointestinal symptoms.Serum samples were provided from all subjects for IgA measurement, IgA anti tTG and EMA assessment. Immulite 2500 Anti tTG IgA (Siemens Co, LA, USA) and ImmuLisa anti-hu tTG antibody IgA ELISA (Immco Diagnostics Inc, NY, USA) kits were used for tTG-Ab assessment. All children underwent HLA typing for DQ2/DQ8. The sensitivity for IgA tTG assessment was greater for chemiluminescence (93,3%) versus ELISA (86,6%), p[0,05, while specificity, positive and negative predictive value didn�t register significant differences. Statistical comparison of the two tested methods revealed a better sensitivity for chemiluminescence. Diagnosis algorithm optimisation may be obtained by associating IgA anti tTG-Ab assessment using chemiluminescence followed by EMA confirmation by indirect immunofluorescence for CD screening.
The Cytotoxic Effect of Rtks Inhibitors on Glioblastoma Cells. A Mathematical Model for Treatment Protocols Optimization
Authors: Brandusa Corina , Vatu Bogdan-Ionel , Purcaru Stefana Oana , Artene Stefan-Alexandru , Buteica Sandra Alice , Tache Daniela Elise , Silosi Cristian Adrian , Taisescu Citto Iulian , Alexandru Oana , Stovicek Olivian Puiu , Demetrian Alin , Dricu Anica
Published: March 2020

Medical oncology has seen an exponential growth in the last 20 years with the vast majority of malignancies receiving new therapeutic options with substantial benefits to patients� survival and quality of life. Glioblastomas (GBMs), however, have remained largely incurable, with over 90% of patients dying within 5 years of diagnosis. The estimation of a dose�effect type ratio, regarding the action of an oncological drug on tumor cells, leads to relevant conclusions in establishing the optimal medication, specific to the chemotherapeutic act. The identification of the optimal dose of agent is very important, based on experiments on cell lines with regards to cellular kinetics. In this study, we developed a mathematical model based on the specific transfer function of a dose�response action type of a drug on tumor cells in vitro.
Study of Heavy Metals in Teas from Romanian Market
Authors: Gutt Gheorghe , Amariei Sonia , Norocel Liliana
Published: March 2020

The aim of this study was to determine heavy metals levels in some varieties of tea from the Romanian market. For this purpose, 15 samples of tea of the following assortments were analyzed: green tea, black tea, herb tea and fruit tea. Determination of heavy metals traces was achieved with inductively coupled plasma mass spectrometry (ICP-MS). The quantities of Pb, Hg and Cd from analyzed tea samples were compared with the permissible dose in accordance with the Notice of Scientific Panel on Contaminants in the Food Chain of European Food Safety Authority (EFSA).
A Method Based on the Principle of Critical Energy for Calculating Flange Joints
Authors: Jinescu Valeriu V. , Chelu Angela , Roman (Urse) Georgeta
Published: March 2020

An analysis has been made of the behavior of flange joint components under initial stress loading (pre-clamping) and in service. There have been highlighted the drawbacks in calculating flange joints to be found in currently acknowledged methods that do not take into account: - the influence of the bending moment produced by the total hydrostatic end force on bolt strength and flange rotation; - the presence of cracks in the welding or in its thermal influence zone; - the residual stresses; � the relaxation of the sealing gasket over time. The calculation method proposed in the paper takes into account all these particularities of loading. Furthermore, alongside the strength calculation of bolts and flanges, a proposal has been put forth for the calculation of the flange joint leak-tightness.
Mirsid volcanic tuff, alkaline activation, dissolved species, optimum activation time, optimum activating concentration
Authors: Reisz Erika , Davidescu Corneliu-Mircea , Ardelean Radu , Costea Liviu
Published: March 2020

The purpose of this article is to study the activation of the Mir�id volcanic tuff with NaOH solutions at various concentrations. To be more specific, the work investigated the evolution of the concentrations of species that passed from the tuff into the activating solutions and the quantities of dissolved species from 100 g tuff. The species found in the activating solution were: potassium, magnesium, aluminium and silicon. The shape of the curves - a sudden increase followed by a plateau or a second stage of slower increase - allowed for setting up the optimal activation time at a half-hour. Another finding was the optimal concentration of 1 N for the activating solution. X-ray diffractograms showed the increase of clinoptilolite content in the tuff, thus improving the adsorbent as well as ion exchange properties by activation with NaOH solutions.
Eco-friendly Additivated Lubricating Greases Made of Agricultural Resources
Authors: Vodounon Cyrille Alode , Sterpu Anca Elena Eliza , Prodea Iuliana Marlena , Koncsag Claudia Irina
Published: March 2020

The purpose of this work is to to develop a simple technology for producing high quality greases from renewable and handy resources in a specific region: West Africa. New lubricating greases were formulated based on palm oil and corn oil with 20% wt. calcium stearate prepared in situ at 100oC and by adding during manufacture crystalline cellulose or Kraft lignin in different concentration (5%, 10% or 20% w/w). These additives significantly improve the rheological parameters, consistency and mechanical stability of the products. Products with 20% (w/w) cellulose or 20% (w/w) lignin added are of particularly good quality These greases could be used in domestic economy, for the agricultural equipment, but also in other industries such as food industry or paper mills being suitable for valves and fittings, gearboxes, rolling bearing.
Single Step Synthesis of Glutamic/tartaric Acid-stabilised Fe3O4 Nanoparticles for Targeted Delivery Systems
Authors: Ene Vladimir Lucian , Neacsu Ionela Andreea , Oprea Ovidiu , Surdu Vasile Adrian , Trusca Roxana Doina , Ficai Anton , Andronescu Ecaterina
Published: March 2020

This paper aims to improve medical strategies regarding cancer treatment, by developing new targeted cancer therapy nanostructured systems, based on magnetite and natural catabolism products as coating agents (glutamic acid, tartaric acid), with induced cellular internalization. In order to create hydrophilic, biocompatible systems, suitable for targeted cancer therapy, and minimize the negative side effects of current approaches, a one-pot synthesis by co-precipitation technique, starting from Fe2+ and Fe3+ inorganic precursors and multifunctional organic compounds, carefully controlling the reaction parameters (concentration of precursors, pH, temperature etc.) was performed. The obtained Fe3O4 stabilised nanoparticles were subjected to morphological and structural characterization. The formation of inorganic-organic hybrid systems was evaluated using FTIR spectroscopy and complex thermal analysis (TG / DSC) for determining the content of the organic component, while X-ray Diffractometry and Scanning and Transmission Electron Microscopy were used to characterize the crystallinity and particle dimensions and distribution. The magnetic properties at room temperature were also evaluated, recording the magnetic susceptibility relative to the applied magnetic field.
Elemental Composition of Particulate Matter in South-Asian Megacity (Faisalabad-Pakistan): Seasonal Behaviors, Source Apportionment and Health Risk Assessment
Authors: Alvi Muhammad Usman , Mahmud Tariq , Kistler Magdalena , Kasper-Giebl Anne , Shahid Imran , Alam Khan , Chishtie Farrukh , Mitu Liviu
Published: March 2020

The composition of atmospheric aerosols can help to identify pollution sources, particulate transportation and possible impacts on human health. In this study, seasonal variations and sources of elemental contents in PM10 from Faisalabad area were investigated. In total 117 samples were collected on 24 hours basis from September 2015 to December 2016. The selected trace elements, viz., Al, Ba, Ca, Fe, K, Mg, Mn, Na, P, Pb, S and Zn were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). The average PM10 concentration was found to be 744 � 392 μg m-3, exceeding the limits proposed by Pak-EPA (150 μg m-3), US-EPA (150 μg m-3) and WHO (50 μg m-3). On average concentration basis, the elements were in the order of Ca ] Al ] S ] Fe ] K ] Mg ] Zn ] Na ] Pb ] P ] Mn ] Ba. The elements apparently emitted from natural sources were dominant in spring and summer seasons, while those emitted from anthropogenic inputs were more prominent in winter and autumn seasons. A correlation analysis revealed that pairs of elements originated from common sources were suspended in the ambient air. The enrichment factors (EFs), principal component analysis (PCA) and cluster analysis (CA) indicated wind-blown dust, biomass burning, fossil fuel combustion and vehicular exhaust/non-exhaust emissions as major sources. A health risk caused by non-carcinogenic trace elements such as Pb, Zn and Mn was also assessed according to the method specified by US-EPA.
Novel Porous Forsterite Ceramics Biocompatibility and Bioactivity Evaluation
Authors: Gorea Maria , Naghiu Marieta-Adriana , Avram Alexandra , Petean Ioan , Mocanu Aurora , Tomoaia-Cotisel Maria
Published: March 2020

This study is aimed to evaluate the biocompatibility and bioactivity of some new porous forsterite ceramics (FCs) produced from high-purity nano forsterite powder, synthesized by an original sol-gel method, which was subjected to pressing into pellets, by using a poly vinyl alcohol solution as a binding component. Then, the raw pellets were sintered at 1200 �C, 1300 �C, 1400 �C and 1450 �C. The obtained four forsterite ceramics, FC-1200, FC-1300, FC-1400 and FC-1450, were fully characterized by density, porosity and shrinkage measurements. The forsterite ceramics exhibited excellent biocompatibility determined by an in vitro cell viability assay, such as MTT test. Furthermore, the in vitro bioactivity test was performed by immersing the forsterite ceramics into simulated body fluid (SBF) and examining the hydroxyapatite (HAP) formation on forsterite ceramics, as evidenced by XRD, FTIR, SEM with EDX. Moreover, the relationship between porous structure and bioactivity of forsterite ceramics in SBF as well as the performance of FC in a cell culture was evaluated. The findings strongly recommend these forsterite ceramics for biomedical applications, as potential bone substitutes.
Diagnostic and Treatment of Ovarian Cystic Lesions in Premenarcheal Girls: a 3 Year Study
Authors: Stefanopol Ioana Anca , Tiron Zina , Neagu Anca Iulia , Pavel Liliana Lacramioara , Sarbu Vasile , Dragomir-Ananie Emiliana Teodora
Published: March 2020

Ovarian cystic lesions, once considered uncommon in children, represent nowadays subject for many studies. Controversies regarding the diagnostic and treatment still exist. Unspecific symptoms and difficulties in performing an accurate ultrasound in children, sometimes led to misdiagnose this condition. Ovarian cystic lesions in premenarcheal girls may have hormonal influence, changing the biochemical balance, so an endocrinologist should be consulted. The main goal is to preserve the adnexal tissue. The purpose of this study is to analize the diagnostic and treatment of ovarian cystic lesions in premenarcheal girls, highlighting the opportunity of a multidisciplinary team and the necessity of the ovarian preservation.
Quantifying Daseinisation Using Shannon Entropy
Authors: Zapatrin Roman
Published: March 2020

Topos formalism for quantum mechanics is interpreted in a broader, information retrieval, perspective. Contexts, its basic components, are treated as sources of information. Their interplay, called daseinisation, defined in purely logical terms, is reformulated in terms of two relations: exclusion and preclusion of queries. Then, broadening these options, daseinisation becomes a characteristic of proximity of contexts; to quantify it numerically, Shannon entropy is used.
A Novel Intelligent Technique of Invariant Statistical Embedding and Averaging via Pivotal Quantities for Optimization or Improvement of Statistical Decision Rules under Parametric Uncertainty
Authors: Nechval Nicholas A. , Berzins Gundars , Nechval Konstantin N.
Published: March 2020

In the present paper, for intelligent constructing efficient (optimal, uniformly non-dominated, unbiased, improved) statistical decisions under parametric uncertainty, a new technique of invariant embedding of sample statistics in a decision criterion and averaging this criterion over pivots’ probability distributions is proposed. This technique represents a simple and computationally attractive statistical method based on the constructive use of the invariance principle in mathematical statistics. Unlike the Bayesian approach, the technique of invariant statistical embedding and averaging via pivotal quantities (ISE&APQ) is independent of the choice of priors and represents a novelty in the theory of statistical decisions. It allows one to eliminate unknown parameters from the problem and to find the efficient statistical decision rules, which often have smaller risk than any of the well-known decision rules. The aim of the present paper is to show how the technique of ISE&APQ may be employed in the particular case of optimization, estimation, or improvement of statistical decisions under parametric uncertainty. To illustrate the proposed technique of ISE&APQ, illustrative examples of intelligent constructing exact statistical tolerance limits for prediction of future outcomes coming from log-location-scale distributions under parametric uncertainty are given
Konsep Pendidikan Islam dan Perkembangannya dalam Menghadapi Problem Pendidikan
Authors: Makhmudah Siti
Published: March 2020

Islamic education is education that is conscious and purposeful, God hasestablished a clear educational foundation for all humans through Islamic law.The concept of education in Islam is, First, Education is an activity that must haveclear goals, objectives and targets. Second,The true and absolute educator is Allah SWT, He is the Creator of nature, theGiver of talent, the Maker of various sunnah developments, enhancements, andinteractions of nature as He also prescribes the rules in order to realize theperfection, benefit and happiness of the nature. Third, education demands therealization of a tiered program through increased education and teachingactivities in line with children's development. Fourth, the role of an educator mustbe in accordance with the purpose of AllahSWT creating it
Optimalisasi Pendekatan Scientific dalam Pembelajaran Pendidikan Agama Islam
Authors: Ali Sarini Musyafi'ah , Ponengoh Kartini
Published: March 2020

This study serves to determine the extent of the use of scientific approaches inlearning Islamic religious education. The method used in this research is to uselibrary research or library research. Where research uses reference books, articles,and journals related to the research title. The 2013 curriculum is a development ofthe Competency Based Curriculum which was first released in 2004 whichincludes competency attitudes, knowledge, and skills by using a scientificapproach in learning. Learning by using a scientific approach is a learning processthat is designed so that students are actively involved in contradicting principles,concepts, or laws by going through several stages of learning activities. The workprocess of this approach is to prioritize the logic of inductive thinking rather thandeductive. Learning with a scientific approach is a learning process that isdesigned so that students are actively involved in understanding the materialwithout relying on information conveyed by the teacher. The learning step with ascientific approach includes observing, asking, trying, reasoning (associating),concluding, and communicating (forming networks). The use of the scientificapproach is intended so that the material delivered by the teacher or educator canbe understood by students. Before carrying out learning activities using ascientific approach, the teacher must make some preparations by preparinglearning instruments such as lesson plans. Basically, all learning activities are leftto each teacher to be able to develop innovation and creativity. although thepreparation is not the same as the example, but it can provide a reference for theuse of a scientific approach
Pengelolaan Sarana dan Prasarana Pendidikan
Authors: Parid Miptah , Alif Afifah Laili Sofi
Published: March 2020

Madrasas as a type of school education institution have the same duties andresponsibilities as other educational institutions that are under the guidance ofthe Ministry of Education and Culture. In order for education in the madrasas tobe effective, a complete and well-organized educational facility can be used asfully as possible to support a quality teaching and learning process. Based on thedescription of the discussion, a summary of conclusions is obtained: (1)Management of educational facilities and infrastructure is structuring activities,starting from the needs, procurement, inventory, storage, maintenance, use andstorage of complete arrangement of land, buildings, equipment, and schoolequipment available for and target. (2) Types of education can be divided intolearning tools and educational media. While the two types of infrastructure arebuildings and furniture. (3) The purpose of managing educational facilities andinfrastructure, is the provision of professional facilities and services in the field offacilities and infrastructure in schools in order to realize the education process inschools effectively and efficiently. (4) Planning space and educationalinfrastructure, namely planning, procurement, maintenance, inventory, andelimination
Wahabisme: Gerakan Revivalist Islam
Authors: Hendriyadi Hendriyadi
Published: March 2020

Wahhabism is one of the thougt in Islam whose existence and received muchattention from Muslims and even non-Muslims. This thought comes with a newpattern of understanding that is formally exclusive and carries the jargon ofrenewal. This thought is different from the Ahl alsunnah wa aljama'ah, both in thebelief, the pattern of da'wah, and other Islamic practice of amaliyah. Perspectivesand practices of other Muslim communities are judged as a religious distortion.This is where the Wahhabism felt superficial to do tajdid (reform)
Jauno ir vidutinio amžiaus lietuvių apatinio žandikaulio pamato tankiosios kaulinės medžiagos vertinimas, remiantis smakro angos indeksu
Authors: Jagelavičienė Eglė , Grinkevičienė Dominyka , Grybauskienė Gabrielė
Published: March 2020

Įvairūs išoriniai ir vidiniai veiksniai daro įtaką kaulinio audinio remodeliacijos procesams, taip pat ir apatinio žandikaulio kauliniam audiniui. Odontologijoje naudojama panoraminė radiografija suteikia galimybę odontologams anksti diagnozuoti kaulų mineralų apykaitos sutrikimus nagrinėjant radiomorfometrinius apatinio žandikaulio indeksus. Tyrimo tikslas – nustatyti ryšį tarp radiomorfometrinio smakro angos indekso, tiriamųjų amžiaus ir lyties. Tiriamųjų imtis ir tyrimo metodai. Ištirti 254 asmenys nuo 20 iki 50 metų. Tiriamieji suskirstyti į grupes: kontrolinę (n=139) – sveiki, nerūkantys, nevartojantys medikamentų ir tiriamąją (n=115) – geros ir patenkinamos sveikatos būklės, nesergantys osteoporoze. Užpildytas koduotas anketinis klausimynas, atliktas panoraminis radiografinis tyrimas, vaizdai vertinti „MedCalc Software Digimizer“ programa. Statistinei analizei naudotos „Microsoft Excel 2013“ ir „SPSS Statistics Windows 22.0“ programos. Pasirinktas statistinio reikšmingumo lygmuo p=0,05. Rezultatai. Tiriamųjų grupėje įrodyta statistiškai reikšminga priklausomybė tarp smakro angos indekso ir amžiaus grupių (p=0,002), statistiškai reikšmingai indekso reikšmės skyrėsi skirtingose moterų amžiaus grupėse (p=0,004). Kontrolinėje grupėje analizuojant individų grupes pagal smakro indekso reikšmių medianą, įrodyta reikšminga sąsaja tarp indekso ir individų amžiaus (p=0,05). Tarp indekso ir skirtingų lyčių statistiškai reikšmingos priklausomybės nenustatyta nė vienoje iš grupių. Išvados. Lytis neturi ypatingos reikšmės jauno ir vidutinio amžiaus žmonių smakro indekso vertėms, tačiau apatinio žandikaulio pamato tankiosios kaulinės medžiagos storis nuolat kinta iki 50 gyvenimo metų.
INTRINSIK POLITIK RUANG (NKRI): BPUPKI sampai Majelis Konstituante
Authors: Rabbani Lubis Ali Akhbar Abaib Mas
Published: March 2020

This paper tries to explain the important picture of the space that was wanted to be created by a common desire, which previously Indonesian people were still locked by colonialism. The space to be created is an independent and independent state, but how is it created? there must be a fierce struggle and debate in producing a country that can be picked dynamically. The author departs from qualitative research, where the data is obtained from library research in the form of descriptive analysis. Stages of data analysis in this study include data reduction, data display, and conclusion drawing. The conclusion is that the basic debate and form of the state is the struggle for political space to dominate the country, but the struggle and debate is a necessity because it has already happened before independence Indonesia. So for researchers that the debate and struggle over the political space of the Indonesian State is a result of the accommodation of historical independence at the same time it is very reasonable because the space produced is a democratic space. It's just that it needs to be emphasized that every dynamics should be in accordance with the applicable constitution, not by means of radicalism.
HAMIL DILUAR NIKAH DAN STATUS NASAB ANAK (Studi Analisis Perspektif Imam Syafi’i dan Imam Ahmad Bin Hambal)
Authors: Asman Asman
Published: March 2020

Imam Syafi’i berpendapat bahwa perkawinan akibat hamil di luar nikah adalah sah, perkawinan boleh dilangsungkan ketika seorang wanita dalam keadaan hamil. Baik perkawinan itu dilakuan dengan laki-laki yang menghamilinya ataupun dengan laki-laki yang bukan menghamilinya. Argumen Imam Syafi’i tentang kebolehan perkawinan tersebut adalah karena wanita tersebut bukanlah termasuk golongan wanita yang haram untuk dinikahi. Dalam masalah ‘iddah Imam Syafi’i berpendapat bahwa tidak ada masa ‘iddah untuk wanita hamil di luar nikah dengan tujuan ‘iddah adalah untuk menjaga kesucian nasab anak. Bayi yang lahir akibat hubungan di luar nikah nasabnya kembali kepadanya. Sedangkan menurut Imam Ahmad Bin Hambal berpendapat bahwa   perkawinan hamil di luar nikah dilakukan dengan laki-laki yang menghamilinya tidak boleh, kecuali mereka bertaubat terdahulu. Sedangkan perkawinan hamil di luar nikah dengan laki-laki yang bukan menghamilinya itu haram hukumnya. Imam Hambali mengatakan diwajibkan atanya menunggu masa ‘iddah dan diharamkan atas suaminya menyetubuhinya hingga habis masa ‘iddahnya. Jenis penelitian ini adalah library research. Secara umum metode penelitian ini yang digunakan adalah penelitia normatif, yaitu penelitian yang diarahkan dan difokuskan terhadap penelitian bahan-bahan pustaka. Fokus kajian ini adalah bagaimana perspektif Imam Syafi’i dan Imam Ahmad bin Hambal tentang hamil di luar nikah dan status nasab anak. Dari fokus kajian menyimpulkan bahwa setiap mazhab sepakat bahwa batas minimal kehamilan adalah enam bulan, apabila seorang wanita dan laki-laki kawin lalu melahirkan seorang anak dalam keadaan hidup dan sempurna bentuknya sebelum enam bulan, maka anak tersebut tidak bisa dikaitakan dengan nasab atas nama suaminya.Kata Kunci : hamil, diluar nikah, nasab, anak
Copper-promoted/copper-catalyzed trifluoromethylselenolation reactions
Authors: Ghiazza Clément , Tlili Anis
Published: March 2020

Copper catalysis and, more generally, copper chemistry are pivotal for modern organofluorine chemistry. Major advances have been made in the field of trifluoromethylselenolations of organic compounds where copper catalysis played a crucial role. Recent developments in this field are highlighted in this minireview.
PERANCANGAN SISTEM FILE ELEKTRONIK (E-FILLING) UNTUK UNIT PENGARSIPAN BALAI WILAYAH SUNGAI NUSA TENGGARA II
Authors: Manu Gerlan Apriandy
Published: March 2020

Arsip merupakan kumpulan dokumen yang disimpan secara teratur, terencana dan mempunyai suatu kegunaan pada setiap kali diperlukan dapat cepat ditemukan kembali. Pengelolaan Arsip di Balai Wilayah Sungai Nusa Tenggara II, menjadi tanggung jawab Kasubag Tata Usaha BWS NTII. Kondisi pengarsipan saat ini di Balai Wilayah Sungai Nusa Tenggara II yaitu arsip masih dikumpulkan secara fisik pada ruang arsip yang terbatas dengan lemari arsip yang juga terbatas, sehingga arsip belum tertata dan terdata dengan baik, dan juga belum optimalnya pengamanan arsip, terdapat arsip dinamis maupun arsip inaktif yang tercecer dan hilang. Balai Wilayah Sungai Nusa Tenggara II memandang perlu untuk mengoptimalkan penataan dan pengamanan arsip dengan Sistem E-Filling (Penyimpanan Elektronik). Pada penelitian ini, Sistem E-Filling (Penyimpanan Elektronik) dirancang untuk mampu menyimpan seluruh arsip Balai Wilayah Sungai Nusa Tenggara II, disamping itu sistem pun dapat mengamankan arsip sesuai dengan hak akses pada arsip tersebut, dan memudahkan pencarian arsip saat diperlukan.
EFEK PERUBAHAN TEGANGAN (kV) DAN ARUS FILAMEN (mA) PADA TEKSTUR CITRA MIKRO RADIOGRAFI DIGITAL
Authors: Wiguna Gede Arya
Published: March 2020

Teknik radiografi didasarkan pada perbedaan koefisien atenuasi antara jaringan biologis yang membentuk tubuh atau organ tertentu. Pengetahuan yang akurat tentang sifat atenuasi tersebut sangat penting untuk mengoptimalkan kualitas gambar, dan pada saat yang sama meminimalkan dosis yang diserap pada pasien. Oleh karenanya maka penting untuk mengetahui bagaimana perubahan tekstur citra terhadap perubahan tegangan (kV) dan arus filamen (mA) tabung sinar-X. Metode yang digunakan untuk menentukan tekstur citra adalah Gray Level Cooccurrence Matrix (GLCM) yang merupakan metode yang paling populer dan banyak digunakan untuk ekstraksi fitur tekstur gambar dalam berbagai jenis aplikasi. Hasil menunjukkan bahwa perubahan tekstur citra terlihat jelas pada perubahan tegangan (kV) sedangkan pada perubahan arus filmaen (mA) perubahan nilai matrik GLCM hanya terjadi pada tegangan 25 kV. Dari hasil juga diketahui bahwa terdapat perubahan tekstur citra pada perubahan tegangan (kV) dan arus filamen (mA) walaupun perubahannya tidak terlalu signifikan.
SKAITMENINIO RELJEFO MODELIO SUDARYMAS IR TOBULINIMAS GEOSTATISTINIAIS METODAIS
Authors: Kumetaitis Algirdas
Published: March 2020

Straipsnyje analizuojami skaitmeninio reljefo modelio sudarymo ir tikslumo įvertinimo metodai.
Modeliuojant paviršių stačiakampio rastro modeliu, didžiausias tikslumas (vidutinė kvadratinė paklaida mf = 3,03 m)
pasiektas sudarant skaitmeninį reljefo modelį (SRM) universaliojo krigingo metodu. Palyginus paviršiaus modelius,
sudarytus taikant netaisyklingą trikampių tinklą (TIN), buvo gauti analogiški rezultatai (mf = 3,07 m). Sudarant
didesnės teritorijos skaitmeninius paviršiaus modelius didesniam tikslumui pasiekti siūloma suskaidyti nagrinėjamą
teritoriją, skirstant paviršių pagal reljefo įvairovę ir žemėnaudos tipą bei kiekvienai šių teritorijų eksperimentiniu
būdu parenkant tinkamiausią paviršiaus modeliavimo metodą. Straipsnyje pateikiama, kad geriausių rezultatų pasiekiama,
kai SRM vertinamas ne tik pagal pavienius aukščių taškus, bet ir pagal eksperimentinį paviršiaus modelio fragmentą,
sudarytą iš tikslesnių aukščių duomenų. Modeliuojant paviršių, įvertinamas ne tik sudaromo modelio tikslumas,
bet ir pradinių duomenų tikslumas.
BALTIJOS GEODEZIJOS KOMISIJOS VEIKLA TARPUKARIU
Authors: Kazakevičius Stasys Vytautas , Būga Arūnas
Published: March 2020

1924 m. buvo numatyta įkurti Baltijos geodezijos komisiją. Įkurtosios komisijos iniciatyva pradedama sudaryti
Baltijos trianguliacijos grandinę. Sudaryta trianguliacijos grandinė aplink Baltijos jūrą leido šalims sujungti trianguliacijos tinklus
bei atlikti bendrąjį trianguliacijos grandinės išlyginimą. Nors Baltijos geodezijos komisijos veiklą nutraukė Antrasis pasaulinis karas,
tačiau jos atlikti darbai tebėra aktualūs iki šių dienų.
Stellar Mass and Stellar Mass-to-light Ratio–Color Relations for Low Surface Brightness Galaxies
Authors: Du Wei , Cheng Cheng , Zheng Zheng , Wu Hong
Published: March 2020

We estimate the stellar mass for a sample of low surface brightness galaxies (LSBGs) by fitting their multiband spectral energy distributions (SEDs) to the stellar population synthesis model. The derived stellar masses (log M
*/M
⊙) span from 7.1 to 11.1, with a mean of log M
*/M
⊙ = 8.5, which is lower than that for normal galaxies. The stellar mass-to-light ratio (γ*) in each band varies little with the absolute magnitude but increases with higher M
*. This trend of γ* with M
* is even stronger in bluer bands. In addition, the γ* for our LSBGs slightly declines from the r band to the longer-wavelength bands. The log

(j = g, r, i, and z) have relatively tight relations with optical colors of g − r and g − i. Compared with several representative γ*–color relations (MLCRs) from the literature, our MLCRs based on LSBG data are consistently among those literature MLCRs previously defined on diverse galaxy samples, and the existing minor differences between the MLCRs are caused by the differences in the SED model ingredients (including initial mass function, star formation history, and stellar population model), line fitting techniques, galaxy samples, and photometric zero-point, rather than the galaxy surface brightness itself, which distinguishes LSBGs from high surface brightness galaxies. Our LSBGs would be very likely to follow those representative MLCRs previously defined in diverse galaxy populations, if those main ingredients were taken into account.