bluuebunny/crossref_metadata_2025 huggingface dataset:
Carbonate Lithology Identification with Generative Adversarial Networks
Authors: Nanjo Takashi , Tanaka Satoru
Published: February 2020

Carbonate sedimentary rocks form the reservoir rocks of many oil and gas fields. The largest oil and gas fields in the world, such as the Ghawar field in Saudi Arabia and the Zakum field in Abu Dhabi, consist of carbonate reservoirs. Therefore, understanding the structure of carbonate sedimentary rocks is important to estimate the reservoir quality and distribution in the oil and gas field. However, carbonate sedimentary rocks have complex sedimentary structures that comprise various kinds of carbonate minerals. In addition, carbonate reservoirs often undergo diagenesis after deposition. Therefore, a detailed carbonate facies analysis requires great expertise. Additionally, traditional thin section analysis approaches such as the point counting method are extremely time intensive.

In this context, machine learning, including deep learning, is attracting significant attention. In particular, image analysis using convolutional neural networks (CNNs) has seen dramatic development since the emergence of AlexNet in 2012. CNNs achieve superhuman image recognition capability by utilizing a deep layer structure that consists of a convolutional layer, activation function, etc. In the field of petroleum exploration and production, several studies on image analysis using CNNs have been performed by petroleum exploration and production companies and universities .

Nanjo and Tanaka (in press) attempted carbonate lithology identification with pixel-wise segmentation in thin section images; the average accuracy of their category identification for each components [grain, cement, pore, and lime mud areas] was 83.9% and the automatic carbonate lithology identification based on the category identification was over 90%. They showed that machine learning is effective for carbonate lithology identification. However, the model is still not perfect with respect to both of category identification and automatic carbonate lithology identification. Generative Adversarial Networks (GAN) are unique and thought as useful tool to improve the model. GAN has already been studied in various fields (e.g., image generation and analysis). However, few studies have attempted to use GAN for carbonate lithology identification. In this study, the authors attempted to conduct carbonate lithology identification with a GAN and to review the potential of applying GAN for FMI imaging.
Evaluation of information by early stages innovative projects using colorographic images
Authors: Konchenkova E. I.
Published: February 2020

It is impossible to imagine the development of high-tech sectors of the Russian economy without the emergence and active growth of a large number of small innovative enterprises that create and promote demanded competitive goods and services on the Russian and international markets. The development of this type of company often requires the attraction of so-called “comfortable” venture capital. The main source of such capital in the early stages of development of small innovative companies is business angels. However, the evaluation of innovative projects at an early stage of development and the decision-making of business angels about investing is a rather time-consuming process, involving the analysis and systematization of a huge amount of information.

The article proposes 56 criteria for evaluating innovative projects of early stages of development. The criteria have been divided into 8 groups specific to the evaluation of projects. These criteria typically use grading scales. The most commonly used are 10-point, 5-point, 100-point rating scales and 0…1 scale.

It was proposed to evaluate innovative projects of the early stages of development not only according to the rating scale, but also using colors. Red (for negative assessments) and blue (for positive assessments) colors gradients have been used in the article. An example of constructing a colorographic map based on a fictional innovative project has been adduced. The developed colorographic maps will allow the investor to evaluate visually the information on the investment application submitted for consideration using a two-dimensional image (this is essentially a table).

The visualization of project estimates in the form of a colored octahedron has been presented. In constructing the octahedron, red, blue and white (no grade) gradients were also used. Each face of the octahedron corresponds to a group of criteria of this project. The criteria in the group are located in such a way that when reflected on the plane they will be located closer to the center of the octahedron. Thus, in the case of saturated color of the center of the octahedron, the project can receive either an excellent, or unsatisfactory rating. This visualization of the project can be useful if you need to analyze each group of criteria separately.
Identification and analysis of factors determining the readiness degree of the Russian Federation financial sector to the digitalization processes
Authors: Khalimon E. A. , Makeeva V. G. , Kafiyatullina Yu. N. , Kharchilava G. P.
Published: February 2020

Nowadays, the rapidly growing technology market and the digitalization process that covers all areas of economic activity have a strong impact on financial markets. Changes in the financial sector occur both within the financial market objects themselves and in the processes of interaction with each other and clients. These changes are related to the application of new digital technologies, including distributed accounting technology, big data analysis, cloud computing, artificial intelligence, biometric technologies, augmented / virtual reality. These technologies are related to processes such as customer use of banking applications, remote payments, planning, lending and financing, trade and investment, insurance, security, regulatory operations and communications between financial market participants and customers.

Such financial sector processes as fintech, regtech, investtech, creditech, inshurtech, cybertech, opertech, robotech, analytech, which reflect the digital aspect of the traditional processes of this market segment, have been described in the article. The article includes materials obtained in the course of the OECD’s work over the past few years on a number of related topics, including “Innovation in financial services”, “Digitalization and Finance”, which complements the study with additional relevant materials of international level. Technological innovations in the field of finance have been considered and their impact on the processes listed above has been evaluated. A detailed description of each of the nine processes contains the rationale and examples of the use of digital technologies, as well as the degree of integration and impact on these processes. The relevance of this topic is due to the fact that today there are no publications in domestic and foreign sources on the identification, analysis and evaluation of factors that affect the financial sector of the economy due to the lack of statistical and analytical information. In this regard, the conclusions made are of both scientific and practical interest not only in Russia, but also in other countries with developing and developed economies.
A Chemically Soldered Polyoxometalate Single-Molecule Transistor
Authors: Wu Chuanli , Qiao Xiaohang , Robertson Craig M. , Higgins Simon , Cai Chenxin , Nichols Richard , Vezzoli Andrea
Published: February 2020

Polyoxometalates have been proposed in the literature as promising components for nanoelectronic applications, where they could offer key advantages with their structural versatility and rich electrochemistry. Apart from a few studies on their ensemble behaviour (for instance, as monolayers or thin films) this potential remains largely unexplored. We synthesised a pyridyl-capped Anderson-Evans polyoxometalate and used it to fabricate single-molecule junctions, by using the organic termini to chemically “solder” a single metal oxide cluster to two nanoelectrodes through coordination bonds. Operating the device in an electrochemical environment allowed us to probe charge transport through different oxidation states of the polyoxometalate, and we report here an efficient three-state transistor behaviour. Conductance data fits a quantum tunnelling transport mechanism, with charge having different tunnelling probabilities through different oxidation states of the polyoxometalate. Our results show the promise of such compounds in nanoelectronics, and are, to our best knowledge, the first report on the single-entity electrochemical behaviour of polyoxometalates.
Hysteresis in the Gas Sorption Isotherms of Metal-Organic Cages Accompanied by Subtle Changes in Molecular Packing
Authors: Craig Gavin , Larpent Patrick , Urabe Hinano , legrand alexandre , Bonneau Mickaele , Kusaka Shinpei , Furukawa Shuhei
Published: February 2020

Structural deformation in response to gas sorption is rarely observed for porous molecular solids, when compared to porous framework materials. Here, we describe the effect of chemical modification on the exterior of lantern-type metal-organic cages on the emergence and then disappearance of cooperative gas uptake. The results suggest that supramolecular design of ligands can be used to reveal this behaviour.
Rapidly Forming Early Intermediate Structures Dictate the Pathway of Capsid Assembly
Authors: Asor Roi , Schlicksup Christopher John , Zhao Zhongchao , Zlotnick Adam , Raviv Uri
Published: February 2020

There are about 1030 possible intermediates on the assembly path from hepatitis B capsid protein dimers to the 120-dimer capsid. If every intermediate was tested, assembly would often get stuck in an entropic trap and essentially every capsid would follow a unique assembly path. Yet, capsids assemble rapidly with minimal trapped intermediates, a realization of the Levinthal paradox. To understand the fundamental mechanisms of capsid assembly it is critical to resolve the early stages of the reaction. We have used Time-Resolved Small Angle X-ray Scattering, which is sensitive to solute size and shape and has millisecond temporal resolution. Scattering curves were fit to a thermodynamically curated library of assembly intermediates, using the principle of maximum entropy. Maximum entropy also provides a physical rationale for the selection of species. We found that the capsid assembly pathway was exquisitely sensitive to initial assembly conditions. With the mildest conditions tested, the reaction appeared two-state from dimer to 120-dimer capsid with some dimers-of-dimers and trimers-of-dimers. In slightly more aggressive conditions, we observed transient accumulation of a decamer-of-dimers and appearance of 90-dimer capsids. In conditions where there is measurable kinetic trapping, we found that a highly diverse early intermediates accumulated within a fraction of a second and propagated into long-lived kinetically trapped states (>90-mer). In all cases, intermediates between 35 and 90 subunits did not accumulate. These results are consistent with the presence of low barrier paths that connect early and late intermediates and direct the ultimate assembly path to late intermediates where assembly can be paused.
Targeting Productive Composition Space Through Machine-Learning Directed Inorganic Synthesis
Authors: Lotfi Sogol , Zhang Ziyan , Viswanathan Gayatri , Fortenberry Kaitlyn , Mansouri Tehrani Aria , Brgoch Jakoah
Published: February 2020

This work presents an approach to aid the discovery of novel inorganic solids by highlighting regions of underexplored, yet likely productive composition space using machine learning. A support vector regression (SVR) algorithm was constructed first to determine a compound’s formation energy (∆𝐸𝑓,SVR) based solely on chemical composition using data from 313,965 high-throughput density functional theory calculations. The resulting predicted formation energies (r2 = 0.94; MAE = 8.5 meV/atom) were then used to construct zero-kelvin convex hull diagrams and identify compositions immediately on the hull, as well as +50 meV above the convex hull to capture potential compounds that are considered energetically unfavorable but that are still experimentally accessible. Using this methodology, four ternary composition diagrams, Y−Ag−Tr (Tr = B, Al, Ga, In), were explored owing to the diversity of chemistries as a function of triel element to provide experimental validation for the predictions. A particularly promising but unexplored region in the Y−Ag−In diagram was identified, and the ensuing solid-state high-temperature synthesis produced YAg0.65In1.35, which has not been reported. First-principle calculations were finally used to determine the ordering of Ag and In as well as confirm the crystal structure solution. Our combination of machine learning, inorganic synthesis, and computational modeling describes a new avenue where data-centric models and computation play a critical role in supporting the experimental examination of unexplored phase diagrams.
Phytochemistry and Therapeutic potential of Bauhinia racemosa Lam. - A Concise Review
Authors: Ann Maria Alex  , Suresh Joghee
Published: February 2020

Nature has consistently been a healing source of ailments for living organisms from the millennium era. Even though nature comprises of diverse animals and plants of immense therapeutic potential, plants due to its easy accessibility play a predominant lead in this perspective. In this scenario, herbal medicine dawned on the treatment of various diseases and the suffering of mankind. Each plant has to be scientifically explored to validate its therapeutic potential. Bauhinia racemosa Lam. is a tree broadly distributed in the tropical climate regions of the earth. Bauhinia species are generally flowering trees found in the Caesalpiniaceae family. The plant, from its root to stem bark fibers, possesses curative properties. Ethnopharmacologically, various parts of the plant ranging from the bark of the plant to the gum obtained has been used in a wide spectrum of diseases such as Epilepsy, Diarrhoea, Leucoderma, etc. This plant, due to its wide distribution in the population, is still in use for many ailments among the tribal people. All the therapeutic properties of a plant are the perquisite of the phytoconstituents present in them. B. racemose is abundant in flavonoids, glycosides, phenols, saponins, and tannins. Many pharmacological actions of the plant have already been proved, which include anti-microbial, anthelmintic, antitumor, antidiabetic activity, etc. This review aims at emphasizing the pharmacological actions and phytochemistry of B. racemose.
Health Promoting Effects of Ziziphus mauritiana : An Overview
Authors: Akassh M  , Fathima T  , Mruthunjaya K
Published: February 2020

Natural products are the main source for an alternative system of medicine. Ziziphus mauritiana, commonly known as jujubes, belongs to the family Rhamnaceae and is majorly found in the Indian subcontinent. They are traditionally used to treat chronic bronchitis, insomnia, diabetes, diarrhoea, abscesses, wounds, liver diseases, fever, sleeplessness, constipation, urinary diseases, and abdominal pains. Over the course of many years, various parts of Ziziphus mauritiana has been found to possess hair growth stimulating, anti-platelet aggregating, anti-inflammation, wound-healing, anti-obesity, antibacterial, and antioxidant effects. Various peer-reviewed research articles were collected from SCOPUS, PubMed, Google, Research Gate, and Web of Science databases. A total of 26 papers were selected based on their relevance. Acetyljujuboside B, Mauritine A, and Jujuboside A are some of the numerous chemical constituents present in Ziziphus mauritiana. The present review is an effort to provide a comprehensive review of the literature on the health-promoting effects of Ziziphus mauritiana.
A Review on Candidiasis resistance current drug development process in its prevention and treatment
Authors: Guruprasad B M  , Famna Roohi N K  , Gowda D V
Published: February 2020

A fungal infection caused by Candida albicans leads to illness and death worldwide. This review mainly focused upon Vulvovaginal Candidiasis that is a common fungal infection seen in women, especially during pregnancy; Candida species cause diseases, particularly in immunocompromised patients. This type of infection occurred during the nonsterile environment. The different types of candidiasis mentioned in this review are Mucosal Candidiasis, Oropharyngeal Candidiasis, Vulvovaginal Candidiasis, Cutaneous Candidiasis, Invasive Candidiasis, Disseminated candidiasis, and Candidemia. New approaches like vaccination, antibodies, cytokine therapy, amphotericin-B loaded nanofiber, mucoadhesive are required to improve the result of the patients suffering from infections. New insights into the mechanism of anticandidal host response have contributed to the design of novel immunotherapy. The systemic and topical treatment is carried. The novel drug therapy is given in order to avoid the resistivity developed by fungus. Diagnosis is made by different techniques like direct examination and Culture Method. The other examination methods used are Pathogen-related tests, mannan tests, nucleic acid-based assays. Amphotericin–B loaded nanofibers and liposomes are developed and even certain plant extracts are using as an antifungal drug which is safer to use the future trends used for the study are Echinocandins, the latest class of drug used for the antifungal and drug act as a fungicidal that has low drug-drug interaction which makes first-line treatment for invasive candidiasis particularly. The different class of drugs has been used for the treatment are discussed with Azoles that are used in the treatment with a combination of the other class drugs.
A határon átnyúló víztartó rétegek vízkészletmegosztására vonatkozó nemzetközi szokásjogi elvek és nemzetközi vitarendezési mechanizmusok
Authors: Bazánth Barbara , Mordivoglia Clio , Sulyok Katalin
Published: February 2020

Az elmúlt fél évszázad során a felszín alatti ivóvízkészletek váltak az emberiség alapvető ivóvízforrásává, mivel globális készleteinknek 97%-a mára víztartó rétegekben rejlik. A felszín alatti vízkészletek jelentőségét növeli, hogy a felszíni vizek gyakran olyan mértékben szennyezettek, hogy alkalmatlanok emberi fogyasztásra, szemben a felszín alatti vizekkel, amelyek jobb minőségűek, és szinte kezelés nélkül alkalmasak ivóvíznek. Azonban a felszín alatti vizek a túlhasználat következtében folyamatosan fogynak, újratöltődési rátájuk pedig irreverzibilis módon csökken. A vízkészletek túlzott kiaknázása világszerte államközi, illetve államon belüli konfliktusok forrásává vált, elegendő itt az Izrael és Palesztina közötti vízkonfliktusra, vagy a bolíviai „vízháborúra” utalni. Ráadásul a nemzetközi jognak a felszín alatti vizek tekintetében nemcsak a túlhasználatot kell megelőznie, hanem azok minőségének megőrzése is kiemelt szempont.
Habilidad competitiva de razas de roya de la hoja provenientes de trigos cristalinos
Authors: Huerta Espino Julio , Singh Ravi , Villaseñor Mir Héctor Eduardo , Rodríguez García María Florencia , Solís Moya Ernesto , Espitia Rangel Eduardo
Published: February 2020

En el proceso de mejoramiento genético de trigo, la evaluación de genotipos por resistencia a royas es fundamental, se tienen que mezclar distintas razas; sin embargo, es primordial conocer su habilidad competitiva y en que genotipo se deben incrementar; por lo que el objetivo del estudio fue medir la habilidad competitiva de cuatro razas de roya de la hoja causada por Puccinia triticina E. que atacan trigos cristalinos (Triticum durum). El estudio se realizó en invernadero durante el año 2015. Las razas BBG/BN, BCG/BN, BBG/BP y CBG/BP, fueron mezcladas y multiplicadas por tres generaciones sucesivas en genotipos susceptibles (Atil C2001 y Morocco), genotipos resistentes (Samayoa C2004 y Thatcher-Lr16 (RL6005)) además de Júpare C2001 resistente a BBG/BN y BCG/BN, pero susceptible a BBG/BP y CBG/BP. Después de la reproducción de urediniosporas, se obtuvieron 100 aislamientos que se incrementaron en Morocco y se procedió a la identificación. La raza identificada con más frecuencia fue CBG/BP con 46%, seguida de BBG/BP con 34% y BBG/BN con 18%, mientras que BCG/BN fue la menos frecuente con 2%. Solo en urediniosporas del compuesto masal (CM) obtenidos de RL6005 y Morocco permitió identificar las cuatro razas, en Atil C2001, Júpare C2001 y Samayoa C2004 solo se identificaron tres. La raza identificada con más frecuencia en Atil C2001, RL6005 y Samayoa C2004 fue BBG/BP, mientras que en Morocco y Júpare C2001, fue CBG/BP. Se concluye que CBG/BP es más competitiva que BBG/BP, BBG/BN y BCG/BN y se recomienda usarse en la mezcla.
producción de vainilla (Vanilla planifolia) en México: análisis y pronóstico
Authors: Luis-Rojas Samuel , Ramírez-Valverde Benito , Díaz-Bautista Maximino , Pizano-Calderón José , Rodríguez-López Carmen
Published: February 2020

La vainilla (Vanilla planifolia) es uno de los aromáticos más demandados en la industria culinaria y refresquera, y entre los cultivos lícitos es de los más rentables, solo después del azafrán. En 2017 la producción en México fue 505.32 toneladas, ubicándolo como el cuarto productor mundial después de Madagascar, Indonesia y China. El objetivo de este estudio fue desarrollar un modelo de pronóstico para la producción anual de vainilla en México (PVAINI). Los datos fueron del periodo 2000 a 2016 y se utilizó la metodología Box-Jenkins de procesos autorregresivos integrados de medias móviles (ARIMA). Los parámetros de los modelos se estimaron con el método de máxima verosimilitud con el paquete de cómputo Statistical Analysis System. Un modelo basado en la serie PVAINI se adaptó para el periodo 2000 a 2016 y se validó con los datos de los años 2016 y 2017. El mejor modelo estimado fue ARIMA (1, 1, 1) e indicó que los PVAINI se explican con la producción ocurrida 4 años previos. Los valores pronosticados para 2017 fueron cercanos a los valores observados. El modelo ARIMA representó con cierta precisión el PVAINI en el próximo año y proporcionó información para planificar y tomar decisiones para los próximos seis años.
Propuestas de ordenamiento territorial comunitario con enfoque agroforestal en Xaltepuxtla, Puebla
Authors: Valencia-Trejo Guadalupe Montserrat , Álvarez-Sánchez María Edna , Gómez-Díaz Jesús David
Published: February 2020

En la presente investigación se generaron propuestas de reconversión productiva de los sistemas tradicionales de producción de ornamentales a sistemas sostenibles en Xaltepuxtla, Puebla, cuya tierra se dedica al cultivo de plantas de ornato a costa de árboles y arbustos endémicos del bosque mesófilo de montaña. Las propuestas de acciones de manejo y de proyectos detonadores de cambio están basadas en el interés de los productores y el potencial de las unidades de tierras, alineándolas a las necesidades de atención indicadas por el gobierno de Puebla y dependencias federales. Las propuestas consideran enriquecimiento de acahuales, producción de especies nativas como helechos y reforestación con especies de interés comercial, así como producción y aprovechamiento de orquídeas y bromelias, producción de bambú, toronja, granada china y aguacate, para los cuales se determinaron las formas del terreno, inventarios de carbono orgánico en el suelo, el piso forestal y de la biomasa aérea incluyendo herbáceas, arbustos y árboles.  En la unidad que se propone el establecimiento de un módulo de producción de tilapia se definieron las áreas propicias para la construcción de estanques y la disponibilidad de agua corriente, a la cual se determinaron los diferentes parámetros al agua y se encontró que es apta para este propósito. Para el establecimiento de un módulo de producción de miel con meliponas se ubicó el lugar con protección y sombra para este propósito y en el proyecto de mejoramiento de un módulo de producción de hongo seta se ubicó el área para la construcción del cobertizo.
Formación Gerencial Dirigida a Docentes para el Mejoramiento del Proceso Educativo en las Aulas Multigrados
Authors: Hernández Lobo Adriana
Published: February 2020

La investigación tuvo como propósito diseñar una propuesta de Formación Gerencial para el mejoramiento del Proceso Educativo en las Aulas Multigrados del Núcleo Escolar Rural 442 del municipio Aricagua Estado Mérida. Por lo tanto, se enmarcó en un enfoque cuantitativo, de campo descriptivo, bajo la modalidad de proyecto factible, en una población conformada por quince docentes y un directivo. Para la recolección de la información se elaboró un cuestionario conformado por veintidós preguntas de estructura cerrada, bajo la técnica de la observación. La validez del instrumento se obtuvo a través del juicio de expertos, obteniendo un Coeficiente de Proporción de Rango de 0.96 indicando excelente validez y para la confiabilidad se aplicó la fórmula del Coeficiente de Alfa de Cronbach, cuyo resultado fue 0.96 para ambos estratos de la población. Valorados los resultados se pudo concluir, la necesidad que presentan los docentes de aulas multigrados de obtener una capacitación gerencial que les permita aplicar las funciones gerenciales en el proceso de enseñanza y aprendizaje, estrategias y roles de una población heterogénea donde se atienden diferentes grados e intereses. Por lo que se diseñó, aplicó y evaluó una propuesta dirigidas a docentes y directivo, lográndose fortalecer los conocimientos sobre acciones gerenciales.
Aprendizaje de la Tecnología en la Etapa Escolar Venezolana
Authors: López Alvarado Luisana Sleny
Published: February 2020

El propósito de este ensayo es reflexionar acerca del aprendizaje de la tecnología en la etapa escolar venezolana. Metodológicamente se procesó la información a partir de los planteamientos teóricos de Coll y Monereo (2008); Tizón (2008); entre otros, que están relacionados con la praxis pedagógica utilizada en la implementada en la apropiación de los contenidos programáticos con la incorporación de las Tecnologías de Información y Comunicación (TIC). Se determinó a modo conclusivo, que el proceso de generar cambios innovadores en los contenidos curriculares debe trascender las aulas de clase, en la búsqueda de promover en los docentes la responsabilidad de participar en las transformaciones pedagógicas escolares pertinentes para diseñar una arquitectura de las TIC, que apoye la enseñanza-aprendizaje requerida por los entornos socioeducativos globales.
La formación docente bajo la modalidad pareja pedagógica practicante en la Universidad Nacional de Educación
Authors: Jaramillo Jimbo Juan Gabriel , Orovio Quintero Justina Elena
Published: February 2020

Este artículo trata sobre la pareja pedagógica practicante, modalidad de formación docente en la Universidad Nacional de Educación (UNAE), fundamentada desde el Modelo Pedagógico y Modelo de Práctica Preprofesional, documentos normativos antecedentes de la investigación. El proceso metodológico parte de la revisión teórico-categórica antes, durante y después del proceso de investigación para asumir el concepto de pareja pedagógica practicante. Así, se entiende como pareja pedagógica practicante a estudiantes que realizan un trabajo cooperativo, reflexivo, de acompañamiento pedagógico en el proceso de la práctica preprofesional. Asimismo, las técnicas e instrumentos útiles en el proceder metodológico involucran a sujetos de la UNAE como de las instituciones donde se realiza la práctica preprofesional. La problemática ¿cuáles serán las funciones de la pareja pedagógica practicante en las unidades de formación?, dirige a la propuesta de cinco funciones (comunicativa, organizativa, ejecutiva, investigativa y evaluativa) con sus respectivos criterios. En efecto, se considera a la pareja pedagógica practicante como una modalidad crucial para fomentar el trabajo cooperativo, diálogo, planificación, retroalimentación, reflexión, entre otros aspectos que se viven cotidianamente en el transcurrir de la práctica.
LITERASI MATEMATIKA SISWA DALAM MENYELESAIKAN SOAL PROGRAMME FOR INTERNATIONAL STUDENT ASSESSMENT (PISA)
Authors: Manoy Janet Trineke , Sari Marinda Rosita
Published: February 2020

contenxts. This study aims to describe the mathematical literacy of class X high school students in solving PISA questions. Date collection wa carried out using tests and interviews. 2 questions level 4dan level 6 are given to students. Date analysis is based on PISA mathematical process indicators namely formulating, applying, and interpreting. The results showed that: in the process of formulating, students mentioned important information in the problem, how to slove it and what concepts would be used, as well as what was know and asked in the problem. In the process of applying students to design and implement strategies according to the information they have made, draw the required objects according to the questions given. In the process of interpreting, students explain the reasons why the conclusions they get are in accordance with the context of the problem given.
ANALISIS KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA SD NEGERI 40 AMBON PADA MATERI BANGUN DATAR
Authors: T Rachmawati , Laurens Theresia , Moma La
Published: February 2020

The purpose of this study was to determine the mathematical creative thinking ability of Grade VI students of SD Negeri 40 Ambon on flat material. This type of research is a descriptive study with a qualitative approach. The subjects in this study were fifth grade students of SD Negeri 40 Ambon in semester 2 of 2018/2019 academic year as many as five people. The subject taking technique is done by purposive sampling. Methods of data collection through tests of mathematical creative thinking and interviews. Data analysis techniques refer to the opinion of Miles and L-Luberman, namely the data reduction stage, the data presentation stage, and the conclusion drawing stage. The results showed that the five subjects representing each level of creative thinking ability had different characters in showing indicators of creative thinking ability
Peningkatan Kemampuan Menulis Teks Eksplanasi dengan Menggunaka Pendekatan CTL (Contextual Teaching and Learning) Siswa Kelas VIII.B MTs 1 Mare
Authors: Rosdiana
Published: February 2020

Penelitian ini bertujuan untuk mendeskripsikan peningkatan keterampilan menulis teks eksplanasi dengan menggunakan pendekatan CTL (contextual teaching and learning) pada siswa Kelas VIII.B MTs Negeri 1 Mare. Melalui pendekatan CTL (contextual teaching and learning), peningkatan keterampilan menulis teks eksplanasi dapat dilihat secara proses maupun secara produk.

Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Subjek penelitian ini adalah siswa kelas VIII.B MTs Negeri 1 Mare yang berjumlah 20 siswa. Objek penelitian ini adalah keterampilan menulis teks eksplanasi. Penelitian ini dilakukan dengan tahap perencanaan, tindakan, pengamatan, dan refleksi. Data diperoleh dari observasi, wawancara, catatan lapangan, dan dokumentasi. Teknik analisis data dilakukan secara kualitatif dan kuantitatif. Keterampilan menulis teks eksplanasi siswa dilihat dari batas pencapaian Kriteria Ketuntasan Minimum (KKM), yaitu 75 dan menjadi bahan pertimbangan pelaksanaan siklus selanjutnya.

Hasil penelitian ini menunjukkan bahwa penerapan pendekatan CTL (contextual teaching and learning) dapat meningkatkan keterampilan menulis teks eskplanasi pada siswa kelas VIII.B MTs Negeri 1 Mare, baik secara proses maupun secara produk. Peningkatan proses ditunjukkan dari sikap siswa, aktivitas siswa, dan suasana pembelajaran, yaitu siswa berpartisipasi aktif dalam pembelajaran menulis teks eksplanasi, siswa berani mengungkapkan pendapat saat berdiskusi, siswa dapat bekerja sama dengan baik dalam kelompok serta siswa dapat mengikuti dan memahami langkah-langkah pendekatan CTL (contextual teaching and learning) dengan baik. Peningkatan produk dapat dilihat dari hasil karya siswa. Pada siklus I, nilai rata-rata siswa 70,6 dengan keterangan siswa tuntas sebanyak 5 siswa atau 20% siswa. Selanjutnya, pada siklus II rata-rata nilai siswa meningkat menjadi 84,35 dengan keterangan siswa tuntas sebanyak 17 siswa atau 85% siswa.
Hubungan Antara Penguasaan Kosakata dan Struktur Kalimat Bahasa Indonesia dengan Keterampilan Menulis Paragraf Argumentasi Siswa Kelas X SMA Negeri 6 Palopo
Authors: Yusni Yusni
Published: February 2020

Penelitian ini bertujuan untuk mendeskripsikan: (1) Penguasaan kosakata siswa kelas X SMA Negeri 6 Palopo; (2) Penguasaan struktur kalimat bahasa Indonesia siswa kelas X SMA Negeri 6 Palopo; (3) Kemampuan menulis paragraf argumentasi siswa kelas X SMA Negeri 6 Palopo; (4) Hubungan yang signifikan penguasaan kosakata dan struktur kalimat bahasa Indonesia dengan keterampilan menulis paragraf argumentasi siswa kelas X SMA Negeri 6 Palopo.

Penelitian ini merupakan penelitian korelasi ganda. Populasi penelitian ini adalah siswa kelas X SMA Negeri 6 Palopo tahun pelajaran 2015-2016 yang berjumlah 389 siswa. Sampel berjumlah 41 yang diambil menggunakan teknik purposive sampling. Instrumen pengumpulan data adalah penguasaan kosakata, penguasaan struktur kalimat, dan keterampilan menulis paragraf argumentasi. Analisis data yang digunakan Uji Persyaratan Analisis dan pengujian hipotesis melalui program SPSS 20 for window.

Berdasarkan hasil penelitian yang ditemukan menunjukkan bahwa: hasil tes penguasaan kosakata nilai rata-rata 81,254. Terdapat 5 siswa atau 12.2% berada pada kategori sangat tinggi, sedangkan kategori sangat rendah hanya terdiri atas 3 siswa atau 7.3%. Sisanya berada pada tingkat tinggi dan sedang sebanyak 33 siswa atau 80,5%. Hasil tes penguasaan struktur kalimat menunjukkan bahwa nilai rata-rata 79,300. Terdapat 4 siswa atau 9,8% berada pada kategori sangat tinggi, 16 siswa atau 39%  pada  kategori tinggi diikuti 15 siswa atau 36.6% pada tingkat sedang dan 6 siswa dengan kategori rendah sebesar 14,6 %. Hasil tes keterampilan menulis paragraf argumentasi menunjukkan bahwa nilai rata-rata 78,049. Terdapat 5 siswa atau 12.2% berada pada kategori sangat tinggi, sedangkan kategori sangat rendah hanya terdiri atas 6 siswa atau 14,6 %. Sisanya berada pada tingkat tinggi dan sedang sebanyak 30 siswa atau 73,2%. Hal ini menunjukkan bahwa variabel penguasaan kosakata dan struktur kalimat terhadap keterampilan menulis paragraf argumentasi adalah 48,5%, sedangkan 51,5% ditentukan oleh variabel lain yang tidak dijelaskan dalam kasus/pembahasan ini. Berdasarkan tabel model summary juga diperoleh nilai probabilitas (sig. F change) = 0,000.  Karena nilai sig. F change 0.000 < 0.05 maka keputusannya adalah H0 ditolak dan H1 diterima. Hal ini berarti ada hubungan yang signifikan antara penguasaan kosakata dan struktur kalimat bahasa Indonesia dengan keterampilan menulis paragraf argumentasi siswa kelas X SMA Negeri 6 Palopo.
COMPARATIVE ASSESSMENT OF VARIOUS INTENSITY AGROECOSYSTEM ENERGY CONSUMPTION DURING SODDY PODZOLIC SOIL USAGE
Authors: Soloviev A. M. , Shevchenko V. A. , Matyuk N. S. , Polin V. D.
Published: February 2020

The energy consumption of different intensities agroecosystems with prolonged usage (> 100 years) of soddy podzolic soil was studied. It was found that the minimum content of humus energy and biophile elements is characteristic for degraded agroecosystems (1094 thousand of MJ / ha), and the maximum – for super-intense (1849 thousand of MJ / ha). In intensive and super intensive agroecosystem manure and mineral fertilizers (24.17 thousand of MJ / ha) make a significant contribution to the energy potential of the soil, and crop and root residues (98.8 thousand of MJ / ha) make a compromise. It is proved that the annual energy loss due to the mineralization of organic matter increases with increasing anthropogenic impact on the soil and amounts to: in compromise agroecosystems - 9.7 thousand of MJ / ha; in super-intensive and intensive - 26.0 ... 31.3, and in degraded - 33.9 thousand of MJ / ha. The maximum total decrease in the energy potential of the soil over a 102-year observation period is characterized for degraded -42% and extensive -10% agroecosystems. The additional revenues of energy with organic and mineral fertilizers increases the energy intensity of the intensively used argolandscape to the level of a compromise, and super-intensive increases it by another 23%.
WINTER TRITICALE ON DRAINED LANDS
Authors: Mitrofanov Yu. I. , Petrova L. I. , Pugacheva L. V. , Pervushina N. K. , Smirnova N. A.
Published: February 2020

Studies with winter triticale were carried out in 2012-2018 in the experimental fields of the FGBNU VNIIMZ (Tver Region).We studied the effectiveness of drainage, fertilizers, combed ribbon-scattering method of sowing, harrowing combed crops, seed sowing rates. The soils of the experimental plot, drained by closed drainage, are soddy-podzolic, light loamy and loamy, gleyic, slightly acidic, the content of mobile phosphorus is high, exchange potassium is high, humus is 2.32-2.70%.On average, over 6 years, the yield of winter triticale (cultivar Nemchinovsky 56) amounted to 5.38 t / ha, or 0.63 t / ha more than rye. Under the influence of drainage, the yield of triticale increased by 1.18-2.71 t/ha or by 53.9-81.7%, against the background of fertilizers - by 1.13-2.66 t / ha (by 51.6 - 78,9 %). Under the combined action of drainage and fertilizers, the yield growth was 3.84 t / ha (175%). The highest payment of 1 kg of the active ingredient of fertilizers with a winter triticale crop was received at the drained site with the addition of N45P15K45 - 18.1 kg of grain. It has been established that it is advisable to grow winter triticale on drained lands on ridges 40-80 mm high with local soil compaction under the ridge and pressing seeds into the soil. With the comb method of sowing, the yield increase was 0.99 t / ha or 22.1% in relation to the existing sowing technology (SZ-3.6). The yield increase was due to a larger number of plants and productive stems per unit area (26.0%). Spring harrowing of winter triticale crops had a positive effect on the development of the root system, biomass and all the main elements of plant productivity, and increased triticale yield by 0.58 t / ha (11.6%). With a combed ribbon-spread method of sowing, high yields of winter triticale are possible in a wide range of seeds sowing rates.
JUSTIFICATION OF PERIODIZATION AND STRATEGIC FORECASTS OF GRAIN MARKET IN RUSSIA
Authors: Zhidkov S. A.
Published: February 2020

The article defines historical and economic justification of changes grain market. Five stages of development of the Russian grain market have been identified, which differ from each other in strategic approaches to ensuring and protecting the domestic market, converting the grain sub-complex into a strategically significant element of the agro-industrial complex of the country and its national economy as a whole. Unlike the existing methods the method of complex assessment of transformation processes presented in the article takes into account the resulting values of saturation with mass commodities, sustainability of development of industries , which are a part of the grain product sub-complex of the agro-industrial complex, the degree of adaptability of the response to market changes, expansion of supply and demand potentials, establishment of fair equilibrium prices for grain. This allowed to assess the systematic basis of the real situation of the grain market of Russia more objectively and to justify the qualitative state of the grain market at a long time interval, to determine the potential of its strategic development in the future. The current position of the grain market of Russia is characterized by twofold excess of grain supply over the total demand for it. Despite such positions, the author 's methodology made it possible to conclude that there are reserves for increasing its volumes and sizes and to achieve this, structural transformations should be carried out within the grain product sub-complex in terms of increasing the share of production and export of grain processing products with high added value and increasing the volume of products traded at high prices. The primary objective in the development of the grain market is to increase the volume and efficiency of grain production. In addition, infrastructure facilities for grain storage and transportation should be modernized, and their additional capacities should be put into operation. The author describes the forecast parameters of the development of the grain market of Russia, on the basis of which the need for related industries of grain product sub-complex is established.
Stratigraphy of the Maastrichtian deposits of the Kakanaut rive basin (Eastern part of Koryak Upland)
Authors: Golovneva L. B. , Shchepetov S. V.
Published: February 2020

Recent discovery of rich dinosaur fauna at high latitudes in northeastern Russia required the additional investigation of the Kakanaut locality for more precise definition of its age and stratigraphic position. This locality is situated in the southern part of the Koryak Upland, in the Kakanaut River basin near Pekulneyskoe Lake (Chukotka Autonomous Region). In the result of field work 2007-2009, five particular sections were described and joint geological column of the Maastrichtian deposits was composed. In this column three parts were distinguished: the marine siltstone strata, the Kakanaut Formation and the Kokuy strata. The Maastrichtian deposits are covered by effusive-pyroclastic deposits (possibly, early Paleogene in age). The marine siltstone strata contains inocerams and ammonites of the lower and lower part of upper Maastrichtian (Inoceramus (Cataceramus) pilvoensis Sok., Schachmaticeramus shikotanensis (Nagao et Mat.) Schachmaticeramus kusiroensis (Nagao et Mat.). Hypophylloceras marshalli (Shimizu), Diplomoceras sp., Pachydiscus subcompressus Mat.). The Kokuy strata contains remains of the late Maastrichtian-early Palaeocene foraminifers (Rzehakina epigone zone) and of undetermined fragments of ammonites. The Kakanaut Formation are represented by nonmarine volcanogenous-terrigenous sediments. It consists of tuffaceous sandstone and siltstones, tuffs, tuffites and andesite-basaltic rocks and represents lacustrine and fluviodeltaic deposition on near-sea lowland. These deposits contain joint association of fossil plants and dinosaur bones, teeth and eggshell fragments. The dinosaur assemblage represented by basal ornithopods, hadrosaurids, ankylosaurians, neoceratopsians, troodontids, dromaeosaurids and tyrannosaurids. Dinosaur eggshell fragments, belonging to hadrosaurids and non-avian theropods, indicate that at least several dinosaur taxa could reproduce in polar region. The Kakanaut flora includes about 50 taxa. The cycadophytes (Nilssonia, Encephalartopsis) and Ginkgo are very abundant in certain layers. The conifers are represented by mixture of the typical Late Cretaceous elements with an admixture of younger Paleocene elements belonging to families Taxodiaceae, Cupressaceae and Pinaceae. Angiosperms include about 30 species. Families that can be confidently recognized are Platanaceae (Platanus), Cercidiphyllaceae (Trochodendroides), Betulaceae (Corylus), Fagaceae (Fagopsiphyllum), Rosaceae (Peculnea, Arctoterum). Other species appear to belong to ancient groups, without clear phylogenetic links to modern taxa. The age of the fossiliferous beds can be estimated as the beginning of late Maastrichtian. The correlation of the Maastrichtian deposits of different areas at eastern part of Koryak Upland was carried out.
Azolla reproductive structures in the Cenozoic of West Siberia
Authors: Nikitin V. P. , Hvalj A. V.
Published: February 2020

Reproductive structures (megaspore complexes and partly massulae) of 22 species of Azolla Lamarck (Azollaceae, Salviniales, Pteridophyta) are recorded from the Eocene–Holocene of West Siberia. Descriptions are provided and the distribution is traced for the species Azolla filiculoides Lamarck, A. incerta V. P. Nikitin, sp. nov., A. monilifera P. A. Nikitin ex P. I. Dorofeev, and A. tomentosa P. A. Nikitin from the section Azolla G. H. Mettenius, the species Azolla aspera P. I. Dorofeev, A. nana P. I. Dorofeev, A. nikitinii P. I. Dorofeev, A. pseudopinnata P. A. Nikitin, A. suchorukovii P. I. Dorofeev, and A. ventricosa P. A. Nikitin ex P. I. Dorofeev from the section Rhizosperma (F. Meyen) G. H. Mettenius, the species Azolla aculeata V. P. Nikitin, sp. nov., A. atava V. P. Nikitin, sp. nov., and A. cluthiana V. P. Nikitin, sp. nov. from the section Trisepta K. Fowler, as well as the species Azolla asiatica V. P. Nikitin, sp. nov., A. gracilis V. P. Nikitin, sp. nov., A. juganica V. P. Nikitin, sp. nov., A. macrocephala V. P. Nikitin, sp. nov., A. minuta V. P. Nikitin, sp. nov., A. sibirica P. I. Dorofeev, A. theganica V. P. Nikitin, sp. nov., A. tumida V. P. Nikitin, sp. nov., and A. verruculosa V. P. Nikitin, sp. nov., whose affinity to the sections Rhizosperma or Trisepta currently cannot be determined.
Meadow steppe associations of South Urals
Authors: Yamalov S. M. , Bayanov A. V. , Muldashev A. A. , Averinova E. A.
Published: February 2020

The syntaxonomical analysis of meadow steppe vegetation of the order Festucetalia valesiacae Br.-Bl. et Tx. ex Br.- Bl. 1950 (class Festuco-Brometea Br.-Bl. et Tx. Ex Soó 1947) and their petrophytic variants in the South Urals (within Bashkortostan Republic) is carried out. The diversity of meadow steppe vegetation is presented by 1 class, 1 order, 1 alliance, 2 suballiance, 6 associations and 2 subassociations. Four new associations and two new subassociations are described. The associations are well differentiated geographically and floristically. It is shown that the main environmental factors influencing the floristic composition of plant communities are moisture and rocky habitats.
Plant communities of perennial succulents in the Caspian Lowland
Authors: Golub V. B. , Yuritsyna N. A.
Published: February 2020

Six plant communities of the class Salicornietea fruticosae Br.-Bl. et R. Tx. ex A. Bolòs y Vayreda 1950 registred in the northern part of the Caspian Lowland: basal communities Halocnemum strobilaceum–[Salicornietea fruticosae], Halocnemum strobilaceum–[Thero-Salicornietea–Salicornietea fruticosae] and Halocnemum strobilaceum–[Artemisio santonici–Puccinellion fominii], subass. Puccinellio fominii–Halimionetum verruciferae limonietosum suffruticosi Shelyag-Sosonko et al. 1989 and also two new associations — Suaedo confusae–Kalidietum caspici and Suaedo corniculatae–Halimionetum verruciferae are described in the paper.
Plant communities with Arenaria pseudofrigida (Ostenf. et Dahl) Juz. ex Schischk. on islands of the south-eastern part of Barents Sea
Authors: Matveyeva N. V. , Lavrinenko O. V. , Lavrinenko I. A.
Published: February 2020

The plant communities with Arenaria pseudofrigida are common on the cobble-loam grounds on the edges of marine terraces on the Vaigach, Dolgiy and few smaller islands in the south-eastern part of the Barents Sea. These communities influenced by sea salty spray are described within 4 new synataxa (2 associations and 2 subassociations). They are provisionally placed within the alliance Arenarion norvegicae Nordh. 1935. order Thlaspietalia rotundifolii Br.-Bl. in Br.-Bl. et Jenny 1926, class Thlaspietea rotundifolii Br.-Bl. 1948.
Analisis Krisis Tersembunyi dalam Implementasi Pembangunan dan Pemerintah daerah
Authors: Madani Muhlis
Published: February 2020

Penerapan otonomi daaerah sejak berlakunya sistem pemerintahan yang otonom masih dijumpai adanya berbagai krisis dalam hal implementasi desentralisasi pembangunan pemerintahan daerah.
Đại học Phenikaa công bố nghiên cứu về tâm lý học xã hội, lý thuyết hành vi và kinh tế y tế trong hệ thống Nature Research
Authors: Lab SDAG
Published: February 2020

Hà Nội (Phenikaa University — Trung tâm ISR; http://isr.phenikaauni.edu.vn/chitiet/thong-bao_2019_2_22_7_58_66/dai-hoc-phenikaa-co-nghien-cuutrong-he-thong-xuat-ban-cua-nature) — Ngày 21/05/2018, Tạp chí Palgrave Communications (Palcomms) – ấn phẩm duy nhất của Nature chuyên môn hóa hoàn toàn phục vụ giới hàn lâm về KHXH&NV và Kinh tế thuộc “Nature Research” – đã chính thức chấp thuận công bố đề tài nghiên cứu từ Việt Nam, do nhóm tác giả đến từ Trung tâm Nghiên cứu xã hội liên ngành (ISR) Đại học Phenikaa (Hà Nội) thực hiện. Nhóm tác giả bao gồm: Vương Quân Hoàng, Hồ Mạnh Tùng, Nguyễn Tô Hồng Kông và Vương Thu Trang.