bluuebunny/crossref_metadata_2025 huggingface dataset:
A Statistical Factor Asset Pricing Model Versus the 4-Factor Model
Authors: Santana Verônica de Fátima , Rathke Alex Augusto Timm
Published: October 2019

This research aims to compare the performance of a statistical factor asset pricing model with the Fama-French-Carhart 4-factor model. We perform a Principal Component Analysis (PCA) to extract latent risk factors using data of stocks listed on B3 from 2001 to 2015. We test the abilities of the two models to explain assets' returns both in the time-series and in the cross-section dimension. We found that the statistical factor models generates statistically significant abnormal returns in the time-series analysis while the 4-factor model does not. In the cross section dimension, neither model generates significant abnormal returns but they also are not able to generate positive risk premia. Similar results are found if we consider different sets of time and assets. Therefore, although the 4-factor model performs slightly better in the set of tests, neither of the models can be considered fully adequate to explain expected returns of assets in the Brazilian stock market.
Um Estudo Empírico da Dinâmica da Correlação do Retorno das Ações do Brasil
Authors: Costa Hudson Chaves , Porto Junior Sabino da Silva , Menezes Gabrielito
Published: October 2019

O presente artigo examina empiricamente o comportamento da correlação entre o retorno de ações listadas na BMF& BOVESPA no período de 2000 a 2015. Para tanto, utilizamos modelos GARCH multivariados introduzidos por Bollerslev (1990) para extrair a série temporal das matrizes de correlação condicional dos retornos das ações. Com a série temporal dos maiores autovalores das matrizes de correlação condicional estimadas, aplicamos testes estatísticos (raiz unitária, quebra estrutural e tendência) para verificar a existência de tendência estocástica ou determinística para a intensidade da correlação entre os retornos das ações. Nossos resultados confirmam que tanto em períodos de crises nacionais como turbulências internacionais, há intensificação da correlação entre as ações. Contudo, não encontramos tendência de longo prazo na série temporal dos maiores autovalores das matrizes de correlação condicional.
List of Reviewers - 2018
Authors: Laurini Marcio Poletti
Published: October 2019

List of Reviewers - 2018
Misannotation of multiple-nucleotide variants risks misdiagnosis
Authors: Wakeling Matthew N. , Laver Thomas W. , Colclough Kevin , Parish Andrew , Ellard Sian , Baple Emma L.
Published: October 2019

Multiple Nucleotide Variants (MNVs) are miscalled by the most widely utilised next generation sequencing analysis (NGS) pipelines, presenting the potential for missing diagnoses that would previously have been made by standard Sanger (dideoxy) sequencing. These variants, which should be treated as a single insertion-deletion mutation event, are commonly called as separate single nucleotide variants. This can result in misannotation, incorrect amino acid predictions and potentially false positive and false negative diagnostic results. This risk will be increased as confirmatory Sanger sequencing of Single Nucleotide variants (SNVs) ceases to be standard practice. Using simulated data and re-analysis of sequencing data from a diagnostic targeted gene panel, we demonstrate that the widely adopted pipeline, GATK best practices, results in miscalling of MNVs and that alternative tools can call these variants correctly. The adoption of calling methods that annotate MNVs correctly would present a solution for individual laboratories, however GATK best practices are the basis for important public resources such as the gnomAD database. We suggest integrating a solution into these guidelines would be the optimal approach.
Design and Evaluation of Solid Set Canopy Delivery System for Spray Application in High-density Apple Orchards
Authors: Sharda Ajay , Karkee Manoj , Hoheisel Gwen , Zhang Qin , Mangus Devin
Published: October 2019

Abstract. Permanent or solid set canopy delivery (SSCD) system with certain types of emitters placed along the tree rows have shown promise in the past for foliar application in tree fruit orchards. However, limited knowledge exists in terms of designing a SSCD system for uniform canopy spray coverage in tree fruit orchards. This study examined the spray coverage in high-density, super spindle apple orchards created by different nozzles and their configuration within a canopy on a SSCD system. Three different types of emitters (sprinkler, full cone, and hollow cone) and two different design configurations were evaluated in the orchard using three consecutive tree fruit rows that were 9 m long. Application pressures were 241, 379, and 517 kPa. Coverage analysis on the upper- and under-side of leaves was determined using water sensitive cards (WSC) on three randomly selected trees (23= cards/tree). The results indicated that the design configuration with two 80° hollow-cone nozzles, installed at three different canopy heights, and spray application pressure of 379 kPa provided greater coverage on upper-side (87%) and on the under-side (50%) of tree leaves. Additional studies would have to be conducted for other fruit crops and training systems to optimize system design for intended spray coverage. Keywords: Application pressure, Emitter, Solid set canopy delivery, Spray nozzle, Spray coverage.
Wireless Sensor and Beidou Satellite Short Message Communication-based Cotton Picker Remote Monitoring and Management System
Authors: Wang Huan , Zhang Lixin , Hu Xue , Zhang Tianyong , Wu Tiansong
Published: October 2019

Abstract. Cluster operation of a cotton picker requires production monitoring, work area statistics, and the collection of work status information. Traditional cotton pickers are either not equipped with a production inspection system or use approximate statistics only. To achieve accurate monitoring of the output of cotton pickers and ensure the accuracy and reliability of remote communication, this study designed a laser- and sensor-based flow-monitoring device that uses a wireless sensor and proposed the use of an image data processing method to accurately calculate cotton flow. BeiDou Navigation Satellite System positioning technology is used to determine the position and area of a cotton picker, and the collected data are transmitted to the dispatch center using BeiDou short message communication technology. The remote monitoring system of the cotton picker includes an onboard vehicle subsystem and a dispatch center. The onboard vehicle subsystem can acquire acquisition information and remotely transmit location information, acquisition area, and acquisition traffic. The dispatch center mainly sends instructions to the cab of the cotton picker for remote management, scheduling, and visual imaging of the track and production statistics of the cotton picker. The monitoring system was installed in the pilot of the 8th Division of Xinjiang Production and Construction Corps in China. The cotton quality monitoring accuracy reached 97%, the positioning and ranging errors were less than 1%, and the system can communicate smoothly without a General Packet Radio Service (GPRS) network area. Keywords: Cotton, Image processing, Production statistics, Remote scheduling, Short message communication, Traffic monitoring.
Calibration of Stainless Steel-edged V-Notch Weir Stop Logs for Water Level Control Structures
Authors: Christianson L. E. , Christianson R. D. , Lipka A. E. , Bailey S. , Chandrasoma J. , McCoy C. , Preza Fontes G. , Roh J. , Sanchez Bustamante Bailon A. P. , Wickramarathne N. M. , Cooke R. A.
Published: October 2019

Abstract. Dependable flow rate measurements are necessary to calculate flow volumes and resulting nutrient loads from subsurface drainage systems and associated conservation practices. The objectives of this study were (1) to develop appropriate weir equations for a new stainless steel-edged 45° V-notch weir developed for AgriDrain inline water level control structures and (2) to determine if the equation was independent of flow depth in the structure. Weirs for 15 cm (6 in.) and 25 cm (10 in.) inline water level control structures were placed at three heights in each structure: at the base, 48 cm from the base, or 97 cm from the base, and the height of the nappe above the weir crest was recorded over a range of flow rates. The resulting data were fitted to equations of the form Q = aHb where Q is the flow rate, H is the height of the nappe above the weir crest, and a and b are fitted parameters. There were no significant differences in the fitted parameters across the two structure sizes or across the three weir placements. The fitted equation for these new stainless steel-edged V-notch weirs was Q = 0.011H2.28 with Q in liters per second and H in centimeters, and Q = 1.44H2.28, with Q in gallons per minute and H in inches. These equations can be used for measuring flow through AgriDrain in-line structures, although in-house weir calibration is highly recommended for specific applications, when possible. Keywords: Drainage, Flow monitoring, Subsurface drainage, V-notch weir, Weir calibration.
Investigation of Optimum Applied Voltage, Liquid Flow Pressure, and Spraying Height for Pesticide Application by Induction Charging
Authors: Appah Samuel , Jia Weidong , Ou Mingxiong , Wang Pei , Gong Chen
Published: October 2019

Abstract. Superposition of charges to pesticide spray droplets by electrostatic induction principle plays an important role in plant protection. It influences spray droplets characteristics, deposition and wraparound effect on leaf surfaces. Hence, an adoption of optimum parameters combination will improve spraying effectiveness to reduce pesticide wastage and environmental pollution. This article investigated the effect of 0-12 kV applied voltages, 2-4 bar liquid flow pressures, and 20-60 cm spraying height regimes on spray chargeability, droplet sizes, spray swath, and droplets deposition while all other parameters were kept constant. The combined parameters of 12 kV applied voltage, 4 bar liquid flow pressure, and 60 cm spraying height produced maximum charged spray swath (1.98 m) and fine particulate droplet sizes (48.91 µm). However, applied voltage of 12 kV, liquid flow pressure of 4 bar at spraying height of 20 cm yielded maximum chargeability of -1.95×10-3 mC kg-1. Since spraying height influences the extent of pesticide spray coverage, a boom height of 60 cm is suitable for deposition in electrostatic pesticide application at 12 kV charging voltage and 4 bar liquid flow rate. The operation of combined optimum parameters took reference from a uniform plant height surface during spraying. Hitherto, the study would help farmers to select suitable electrostatic spraying parameters for pesticide application in plant protection. Keywords: Applied voltage, Charge-mass ratio, Droplet sizes, Liquid flow rate, Spray pressure, Spray swath.
Unidades fraseológicas em textos autênticos em francês: o exemplo dos contos infanto-juvenis
Authors: Sampaio Ângelo De Souza , Ribeiro Silvana Soares Costa
Published: October 2019

Este trabalho tem como base teórica os estudos recentes sobre fraseologia (GONZÁLEZ REY, 2015; GROSS, 1996; MEJRI, 1997, 2017; MONTEIRO-PLANTIN, 2014, 2017) e visa identificar e catalogar quantitativamente os fraseologismos presentes na série de contos infanto-juvenis Le Petit Nicolas (GOSCINNY; SEMPÉ, 1960-1964), estabelecendo regras de descrição e estrutura de codificação dos dados. Objetiva-se analisar as estruturas morfossintáticas, verificar a recorrência dos fraseologismos encontrados nos dez primeiros contos do volume 1 e averiguar quais expressões causam maior ou menor dificuldade de compreensão para um leitor brasileiro de francês. Os resultados apontam que as estruturas sintáticas dos fraseologismos em francês são próximas às do português, o que não aumenta a complexidade de compreensão.
Lexicografia cultural do Semiárido baiano
Authors: Dos Santos Cosme Batista
Published: October 2019

Este trabalho tem como objetivo apresentar resultados parciais da pesquisa sobre a lexicografia cultural do semiárido baiano. A pesquisa foi financiada pela Fundação de Amparo à Pesquisa do Estado da Bahia (FAPESB) e pela Universidade do Estado da Bahia (UNEB). O pressuposto central da pesquisa é a lexicografia cultural, atualizada a partir de pressupostos metodológicos da linguística aplicada, da etnolexicografia (PEREZ, 2000) e da pragmática lexicultural (GALISSON, 2001). Os estudos foram realizados em contextos de formação de educadores, a partir da pesquisa-formação (MARIANO, 2013), tendo como instrumentos a oficina de lexicografia cultural e a edição lexicográfica de palavras culturalmente relevante nas comunidades rurais e urbanas do sertão semiárido baiano. Durante a realização de oficinas, constatamos as dificuldades de trazer a dimensão pragmática das palavras para a edição de verbetes lexicográficos, por isso a proposta de trabalho é motivada por essa necessidade de conhecer os fundamentos da lexicografia (PONTES, 2001) e da lexicografia sociocultural (ISQUERDO, 1998). Em fichas lexicográficas, foram levantadas as palavras em corpus de língua falada, textos literários e documentários. No final de cada oficina, os professores em formação editaram os seguintes dicionários: o Dicionário regional do Uauá, organizado por uma educadora, em parceria com estudantes de Ensino Médio; o ABC do vaqueiro, organizado por um grupo de educadores da Plataforma Freire; e o ABC do artesanato Kiriri, por um grupo de Educadores da Licenciatura Intercultural de Educação Escolar Indígena.
Mídias faladas locais: um estudo sobre atitudes linguísticas em Cáceres-MT
Authors: Campelo Fernanda De Souza Pedroso , Karim Jocineide Macedo
Published: October 2019

Este artigo tem por objetivo identificar atitudes linguísticas em relação às mídias faladas locais. Objetiva-se também identificar atitudes linguísticas em relação ao uso do falar cacerense na mídia falada de Cáceres-MT e aos usos linguísticos propagados em um programa de rádio de Cáceres-MT, o Banzé da Gatunada. As atitudes são sintetizadas em positivas (a favor desses usos) e negativas (contrárias a esses usos). As entrevistas com cacerenses nativos, que constituíram o corpus para análise, foram desenvolvidas por meio de perguntas abertas, baseadas nos estudos de Bisinoto (2000) e Lopes (2012). Os resultados obtidos corroboram nossa hipótese inicial de que os nativos apresentam atitudes linguísticas positivas frente aos temas a que nos propomos pesquisar.
A variação lexical no campo semântico vestuário e acessórios: um estudo a partir dos dados do Projeto ALiB
Authors: Paim Marcela Moura Torres
Published: October 2019

Este artigo objetiva investigar itens semântico-lexicais do campo vestuário e acessórios a partir dos inquéritos das localidades que integram a rede de pontos do Projeto ALiB, visualizando como a linguagem de indivíduos possui marcas linguísticas específicas que constroem, mantêm e projetam a sua identidade social de faixa etária através do léxico. O termo identidade está sendo aqui concebido, segundo Ochs (1993, p. 289), “como um termo que pode abranger uma gama de personae, não sendo, portanto, fixa nem categórica”. O cenário da pesquisa é constituído por informantes estratificados por sexo, faixa etária e escolaridade. A análise do corpus possibilitou a descrição da diversidade lexical do português falado no Brasil, seguindo os princípios da Geolinguística Pluridimensional.
Os multiletramentos na educação do/no campo: uma leitura interdisciplinar do trabalho docente
Authors: Da Silva Marta Divina Pereira , De Sousa Rosineide Magalhães
Published: October 2019

Este trabalho tem como objetivo observar como professoras de língua materna articulam o ensino ao caráter interdisciplinar. Utilizou-se como instrumento de pesquisa o questionário investigativo para coleta de dados e compreensão, no discurso das professoras, se as práticas em sala de aula estavam relacionadas aos aspectos sociolinguísticos. O aporte teórico para triangulação de dados foi a Análise do Discurso Crítica, o Letramento e a Sociolinguística. Desta forma, compreendeu-se o quão é necessária a pesquisa de campo para o reconhecimento da realidade no espaço escolar e como os docentes veem a prática e os resultados obtidos no ensino da língua materna.
The European philanthropy manifesto: ‘clearly needed and a very good thing'?
Authors: Harrow Jenny , Jung Tobias
Published: October 2019

Launched in March 2019, the European philanthropy manifesto (EPM) argues for the introduction of a single market for philanthropy. Examining the historic precedents of that idea and the recommendations put forward in the EPM to achieve the single market, in this policy review we critically reflect on the potential and shortcomings of the EPM.
Touch screen haptic disconnection
Authors: Chadwick Irarrázaval María Teresa
Published: October 2019

Can we survive 24 hours without touch screen technology? Have you observed how we travel in the Underground? It is unbelievable how these devices have radically changed social dynamics in a decade. If our first primitive approach to aesthetics was through tactility, how is screen caressing affecting us? In an individualistic and image consumerist society, touch screens empower illusion and the spectacle. This exploratory research done, between 2016 and 2018, attempts to understand how touch screen might, paradoxically, detach us from our tactile and haptic instincts. This article concludes with prospective inquiries seeking to find an equilibrium in approaching new technologies without losing our humanity.
Mediaciones y posiciones. Una aproximación a la sociología del arte
Authors: Cavia Pardo Beatriz
Published: October 2019

Este texto responde a la invitación a pensar desde el concepto de inclinación que la filósofa Adriana Cavarero pone en el centro de la reflexión contemporánea, en diálogo con autores de extraordinaria significación como Judith Butler. El objetivo central del artículo es indagar en las dimensiones sociológicas del arte contemporáneo a través del análisis de las figuras de la mediación y del cuidado, a partir de un despliegue de posibles canalizaciones de la sociología del arte en la actualidad, preocupadas por las formas de hacer y producir, difundir y sostener, arte y conocimiento. En la actualidad, la noción de mediación ha adquirido centralidad en el mundo del arte, diagnosticándose una saturación de sus usos y una polisemia en sus significados, por ser una de las más relevantes en la teoría social contemporánea. El cuidado también se ha tornado central a la hora de abordar distintas formas de hacer, en el mundo del arte y en las prácticas de conocimiento. Así, este artículo postula un análisis sociológico del arte contemporáneo que aporta un despliegue de los cuidados en el arte a través de la mediación.
Features of the course of chronic renal failure in patients with diabetes mellitus who were on hemodialysis
Authors: Il'in A. P. , Bogoyavlenskii V. F. , Smuryakova E. E.
Published: October 2019

То enhance the efficiency of treatment of patients with diabetic nephropathy, to prolong survival, and to improve life quality in them, the specific features of the clinical cause and the pattern of morbidity, the authors studied 28 patients with diabetes mellitus and the priority factors aggravating the course of diabetic nephropathy during renal replacement therapy. Their experience in treating patients with diabetes mellitus with programmed hemodialysis and peritoneal dialysis was analyzed. Cardiovascular diseases, the dyslipidemic syndrome that signals about progressive atherosclerosis of the aorta and coronary arteries rank first among a diversity of factors that aggravate prognosis, deteriorate life quality in patients with diabetic nephropathy, and promote the development of a fatal outcome. Hyper-(f-microglobulia develops along with dialysis amyloidosis. Immunity tension decreases and infectious complications develop in the respiratory and gastrointestinal tract. Cardiovascular diseases in patients with diabetic nephropathy are poor factors leading to sudden coronary death in severe cases. An individual approach to treating patients with diabetes mellitus complicated by nephropathy resulting in chronic renal failure makes it possible to optimize the success rates of programmed hemodialysis or peritoneal dialysis and to prolong their life span by 4-5 years.
Clinical, hormonal, and molecular genetic characteristics of patients with Р450с17 (17a-hydroxylase/17,20-liase) insufficiency
Authors: Tyulpakov A. N. , Kalinchenko N. Yu. , Kalinchenko S. Yu. , Rozhinskaya L. Ya. , Platonova P. M. , Goncharov N. P. , Kolesnikova G. S. , Peterkova V. A. , Peter M. , Zippel W.
Published: October 2019

Deficiency of Р450с17 (17a-hydroxylase/17,20-liase) is а rare hereditary steroidogenesis defects disordering the synthesis of sex steroids and leading to excessive production of mineralocorticoid production. Clinical findings and results of molecular and hormonal studies in 6patients with P450cl7 deficiency are presented. All patients were born with female phenotype, 5 with male karyotype and 1 with female karyotype. Testicular feminization was erroneously diagnosed in all genetic men, and the genetic woman was treated for ovarian in sufficiency. Five of 6 patients suffered from severe arterial hypertension (up to 100/130 mm Hg). Hypopotassemia was observed in 3 patients. P450cl7 deficiency was diagnosed on the basis of increased serum corticosterone level, and in 4 patients it was confirmed by multisteroid analysis. Amplification and subsequent direct sequencing of CYP17gene revealed homozygotic mutation in exon 1 (R96Q) in 1 patient. The same mutations in exon 6 (V360L) were detected in 2 unrelated families (4 patients). Constituent heterozygosis by 2 mutations, in exon 6 (R347C) and exon 8 (R416C), was detected in 1 patient. These findings evidence the need in differential diagnosis of P450cl7 deficiency and the testicular feminization syndrome.
Relationship between intestinal dysbiosis and iodine insufficiency in children with endemic goiter
Authors: Grebneva O. P. , Anchikova L. I.
Published: October 2019

The article is devoted to the assessment of the relationship between intestinal dysbiosis and iodine insufficiency in children with endemic goiter
Surgical accesses to the adrenals (lecture)
Authors: Kalinin A. P. , Kulikov L. K.
Published: October 2019

The lecture is devoted to the analysis of different variants of surgical accesses to the adrenals.
Simultaneous measurement of corticosterone and 11-dehydrocorticosterone in the adrenals and plasma in acute stress
Authors: Cherkasova О. P. , Fedorov V. I.
Published: October 2019

Adrenal and plasma levels of corticosterone and 11-dehydrocorticosterone were measured in intact and stressed (laparotomy) rats by microcolumn high performance liquid chromatography. In contrast to humans, in rats plasma level of basic glucocorticoid is essentially higher than the level of its reversible metabolite. Acute stress (laparotomy) led to an increase in the adrenal concentration of 11-dehydrocorticosterone and plasma concentration of corticosterone, which was regarded as creation of a reserve corticosterone pool.
Endogenous secretion of insulin and its relationship with immunogenetic markers in infants with insulin-dependent diabetes mellitus
Authors: Osokina I. V. , Scherbacheva L. N. , Lebedev N. B. , Belovalova I. M. , Knyazeva A. P. , Yazdovsky V. V. , Dedov I. I.
Published: October 2019

RESULTS:The level of C-peptide is a marker determining the clinical course of insulin-dependent diabetes mellitus (IDDM). The factors influencing the volume of residual endogenous secretion of insulin in IDDM patients are not yet well known. In order to elucidate the effect of HLA-phenotype on the residual function .of pancreatic beta-cells and the course of diabetes, 114 children, 55 boys and 59 girls aged 8 months to 6.5 years, suffering from IDDM, were examined. HLA phenotype was detected by the standard microlymphocytotoxic test. Fifty-nine HLA antigens of classes I and II, locuses A, B, DR, DQ were taken into consideration. Basal and radial C-peptide was assessed by radioimmunoassay. The pancreatic insulin-secretory function was found reduced in young patients with IDDM. The mean values of C- peptide were 0.13 ± 0.01 nmol/liter. Residual secretion of insulin was revealed in 56.2% of children. HLA markers of high risk of IDDM development in the first yeais of life were revealed: DQw3. DR3/4. DR4, DR3, B8 antigens. The markers of high risk of diabetes DR3 and DR4, and moreover, DR3/4. as well as the age by the disease onset and duration of IDDM were found to influence the size and duration of functioning of beta-cells.
Dedov I. I. (on the occasion of his birthday)
Authors: Problems of Endocrinology Journal Editors
Published: October 2019

The article is devoted to the 60th anniversary of the outstanding Russian scientist, academician of RAMS, director of the Endocrinological Research Center (ENC) of the RAMS, head of the Department of endocrinology of the MMA I. M. Sechenov Dedov Ivan Ivanovich.
«YO NO SÉ POR QUÉ SERÁ QUE ELLOS NO QUIEREN HABLAR LA IDIOMA»
Authors: Paredes Agustina
Published: October 2019

En este artículo se reflexiona sobre la situación sociolingüística de la población autorreconocida como qom asentada en Colonia Aborigen Chaco. El trabajo forma parte del comienzo de una investigación doctoral que continúa un trabajo de tesina de licenciatura en Letras. Particularmente, se hace foco en los ámbitos de uso de las lenguas para indagar en la vitalidad de la lengua indígena, a partir de las representaciones de los hablantes como también de las prácticas comunicativas observadas. El artículo se basa e ilustra a partir de las entrevistas realizadas durante el trabajo de campo llevado a cabo en enero de 2019.
Las aulas virtuales en el proceso de enseñanza y aprendizaje de la Estadística
Authors: Barrera Dayana Alejandra , Lugo-López Nidia Danigza
Published: October 2019

Actualmente se innova en la investigación acerca de los métodos de enseñanza en estadística y probabilidad, sin embargo, es necesario investigar el proceso de aprendizaje de esta asignatura dentro de entornos virtuales. Por esta razón, se pretende observar cómo han cambiado los métodos de enseñanza de la asignatura a través del tiempo en la Universidad Manuela Bertrán (UMB) Virtual, tomando las notas de las evaluaciones finales de dos grupos de estudiantes de estadísticas de las aulas virtuales. Utilizando la prueba T se realiza un análisis comparativo de las aulas, concluyendo que el método de enseñanza en el que se usaron diferentes recursos didácticos muestra un aprendizaje superior.
La educación en energías renovables desde las controversias socio-científicas en la educación en ciencias
Authors: Ballesteros Ballesteros Vladimir , Gallego-Torres Adriana Patricia
Published: October 2019

El trabajo que aquí presentamos, propone una reflexión teórica e histórica de las controversias socio-científicas planteadas como situaciones problematizadores que han venido convirtiéndose en una herramienta eficaz en la enseñanza de las ciencias, ya que permiten el desarrollo de procesos argumentativos, el desarrollo del pensamiento crítico, concepciones más acordes a la ciencia y la actividad científica y permite utilizar la historia y la filosofía. En este sentido, los lectores encontraran un breve recuento histórico del origen de las controversias socio-científicas y una propuesta para trabajar la Educación en Energías Renovables.
Laboratorios de informática para mejorar el proceso de cumplimiento fiscal de Colombia
Authors: González-Robayo Fabián Giovanni , González-Sanabria Juan Sebastián , Téllez-Hernández Lucero
Published: October 2019

El artículo propone el uso de un laboratorio de informática forense regional para ayudar a solucionar el problema de evasión fiscal en Colombia, el cual supone problemas en cubrir las obligaciones públicas del Estado, y lleva a las personas a tener dificultades de consumo y ahorro que afectan la dinámica económica. Pero más allá de las implicaciones normativas, se observa que al implementar nuevas tecnologías en el proceso fiscal para evitar o detectar la evasión se tienen resultados más eficientes. El proceso informático que ayuda a cubrir la evasión fiscal puede mejorarse por medio del análisis de información digital, como lo reflejan los hallazgos de evidencia del uso de laboratorios forenses.
Enterprise development management through managed chaos
Authors: Kasianova Nataliia , Tarasova Elena , Kravchuk Nataliia
Published: October 2019

The purpose of the study is to substantiate the feasibility of using the theory of chaos in the process of managing the industrial enterprises. One of the tools for managing chaos is proposed to be chaos engineering – a method of conducting planned experiments that give an idea of how the system can behave as a result of disturbances. The introduction of chaos engineering will allow for prediction of possible perturbations and prepare the system for a new attractor at an optimal time with minimal losses. The chaos management model of the economic system, which allows either a radical change in the status of the enterprise, its ability to influence demand and supply while maintaining the subjectivity of the development, or to promote antifragility of the enterprise, allows strengthening the stability of the economic system.
Assessment of bonds utilisation in the Nigerian construction industry
Authors: Muhammed Usman , Eze Emmanuel Chididebere , Tsado John Abel , Okokun Blessing
Published: October 2019

Default by contractors in meeting the time and cost performance of a project is usually counterproductive. Considering safety from the high financial burden of construction projects, clients are compelled to seek a level of guarantee in bonds to safeguard them from financial problems and provide incentive for proper and timely completion of the project by the contractor, thereby minimising failures and risks. Therefore, the study assessed the level of bond utilization in Nigerian construction industry, with a view to examining the benefits of its utilisation in construction projects. Survey method was adopted in which questionnaires were used to collect data from respondents. With a response rate of 45.30% (164 of 362), the collected data were analysed using descriptive and analytical scientific method. It was found that the level of bond utilisation in construction contract is high, with performance bond and Advance payment bond being most commonly used construction bond types. Assurance of performance and financial security are the major benefits of bond utilisation. The study recommends that there is need for more enlightenment of construction participants on the various types bond used in construction contracts
Re-examining Husserl’s Non-Conceptualism in the Logical Investigations
Authors: Kidd Chad
Published: October 2019

A recent trend in Husserl scholarship takes the Logische Untersuchungen (LU) as advancing an inconsistent and confused view of the non-conceptual content of perceptual experience. Against this, I argue that there is no inconsistency about non-conceptualism in LU. Rather, LU presents a hybrid view of the conceptual nature of perceptual experience, which can easily be misread as inconsistent, since it combines a conceptualist view of perceptual content (or matter) with a non-conceptualist view of perceptual acts. I show how this hybrid view is operative in Husserl’s analyses of essentially occasional expressions and categorial intuition. And I argue that is also deployed in relation to Husserl’s analysis of the constitution of perceptual fullness, which allows it to avoid an objection raised by Walter Hopp – that the combination of Husserl’s analysis of perceptual fullness with conceptualism about perceptual content generates a vicious regress.
Odd-quadratic Leibniz superalgebras
Authors: Benayadi Saïd , Mhamdi Fahmi
Published: October 2019

An odd-quadratic Leibniz superalgebra is a (left or right) Leibniz superalgebra with an odd, supersymmetric, non-degenerate and invariant bilinear form. In this paper, we prove that a left (resp. right) Leibniz superalgebra that carries this structure is symmetric (meaning that it is simultaneously a left and a right Leibniz superalgebra). Moreover, we show that any non-abelian (left or right) Leibniz superalgebra
does not possess simultaneously a quadratic and an odd-quadratic structure. Further, we obtain an inductive description of odd-quadratic Leibniz superalgebras using the procedure of generalized odd double extension and we reduce the study of this class of Leibniz superalgebras to that of odd-quadratic Lie superalgebras. Finally, several non-trivial examples of odd-quadratic Leibniz superalgebras are included.
Microstructural analysis and multi response optimization of WEDM of Inconel 825 using RSM based desirability approach
Authors: Kumar Pawan , Gupta Meenu , Kumar Vineet
Published: October 2019

Increasing demand of aerospace industry for more heat resistant and tough material have open up the possibility of the use of Inconel 825 for making of combustor casing and turbine blades. Because of its robust nature, Inconel 825 is a difficult-to-cut material with conventional methods. Wire-cut electrical discharge machining (WEDM), a non traditional method uses thermoelectric erosion principle to produce intricate shape and profiles of such difficult-to-cut material. In this study, various operating parameters of WEDM are optimized using desirability approach and microstructural behavior at optimum combinations was studied. Input parameters viz. pulse-on time, pulse-off time, peak current, spark gap voltage, wire tension, wire feed and performance has been measured in term of material removal rate, surface roughness and wire wear ratio. It has been observed that at 110 machine unit pulse-on time (Ton), 35 machine unit pulse-off time (Toff), 46 volt gap voltage (SV), 120 ampere peak current (IP), 11 machine unit wire tension (WT) and 5 m/min wire feed (WF), the values obtained for material removal rate (MRR), surface roughness (SR) and wire wear ratio (WWR) were 27.691mm2/min, 2.721 μmand 0.117 respectively. Scanning electron microscopy, energy dispersive spectrograph and X-ray diffraction analysis has also been carried out to study the surface characterization. Comparatively less numbers of cracks, pockmarks, craters, and pulled out material were found on work specimen surface and wire electrode surface under standardized conditions, thus maintaining the surface integrity of the machined surface.
Designing of concrete pavement expansion joints based on climate conditions of Vietnam
Authors: Nguyen Hoang Long , Pham Cao Thang , Pham Duy Linh , Pham Tuan Anh , Pham Duc Phong , Pham Binh Thai
Published: October 2019

Main objective of this paper is to present ananalysis of necessity of providing expansion joints in the plain cement concrete pavement considering the climate and weather conditions of Vietnam. This study would help in the proper designing of expansion joints of highways and airport roads and thus can improve life span of cement concrete pavements to be constructed in Vietnam.
Effects of Waste Eggshells addition on Microstructures, Mechanical and Tribological Properties of Green Metal Matrix Composite
Authors: Hayajneh Mohammed T. , Almomani Mohammed A. , Al-Shrida Mu’ayyad M.
Published: October 2019

Chicken eggshell (Es) waste is an industrial byproduct, and its disposal constitutes a severe environmental risk. Eggshell is a new engineering reinforcement retaining excellent properties such as low density, renewable, eco-friendly, and high thermal stability. The current research aims to study the effects of eggshell particles addition on microstructures, mechanical and tribological properties of aluminium/eggshell green metal matrix composites (MMCs). In the present work Al–Es metal matrix composite is produced by powder metallurgy processes. SEM with EDX and XRD were used to examine the microstructures and the compounds that arise during the sintering process of the produced composites. Six tests were conducted on the produced samples including; dry wear test, micro Vickers hardness, and ultimate compressive strength. The results showed that the addition of 3 wt. % of eggshell improved wear resistance (65%), compressive strength (40%) and hardness (15%). At 6 and 9 wt. % of eggshell, negative results appeared.
Bagvalal place names as adverbs
Authors: Daniel Michael
Published: October 2019

In Bagvalal (East Caucasian), native place names show strongly reduced morphological inflection. They combine with spatial suffixes identical to those used on nouns and spatial adverbs and with attributive and plural suffixes identical to those of nominal genitive and plural and thus have mixed adverbial nominal morphology. Place names are unmarked in spatial function but marked in argument position. To occur in the latter, they require a nominal head with an abstract meaning such as ‘village’ or ‘place’. Bagvalal place names are syntactically adverbs rather than nouns. Considering syntax and morphology together, they constitute a morphosyntactic class intermediate between nouns and adverbs. Mixed properties of Bagvalal place names are functionally motivated. Place names are, first of all, locations (hence spatial inflection), but also territories associated with specific ethnic and sub-ethnic groups (hence attributive and plural inflection). I conclude by briefly reviewing evidence from some other East Caucasian languages, to show that Bagvalal is not an exception.
On the heterogeneity of deaccusative reflexives
Authors: Holvoet Axel
Published: October 2019

The article deals with the notions of deaccusative and antipassive reflexives. The term ‘deaccusative’ is used in the literature to refer to what appears to be a derivation reflexivizing a transitive verb and replacing its direct object with an oblique object. The term suggests a unitary operation, and its function has been identified, in recent work, as antipassive. The aim of this paper is to show that, though some ‘deaccusatives’ are antipassive, the group of verbs sometimes referred to as deaccusatives is, in fact, a heterogeneous conglomerate comprising a few minor constructions but also pairings of reflexive and non-reflexive verbs that are due to alternations in argument marking with specific lexical classes or simply to diachronic accident.
Zur Formylierung von Hydroxy- und Alkoxyaromaten mit Ameisensäure
Authors: Kantlehner Willi , Ziegler Georg , Mezger Jochen , Sommer Jean , Louis Benoit , Sievers Björn , Ivanov Ivo C. , Samain Xavier , Leonhardt Silvia , Frey Wolfgang
Published: October 2019

By treatment of ethers of phenol, resorcinol, 2-napththol, alkylanisoles 10, 13, 15, 17, 20, 22, 24, 28 with formic acid/borontrichloride the aromatic aldehydes 11, 14, 16, 18, 21, 23, 25, 26, 29 can generally be prepared in low yields. The formylation reactions proceed between −20 and −10°C within 20 min in 1,2-dichloroethane, chlorobenzene, or methylene chloride as solvents when formic acid and borontrichloride are used in excess [molar ratio of aromatic compound to HCOOH to BCl3 = 1:1.2–1.7:1.6–1.8]. The more strongly activated 3,5-dimethoxyphenol (33) is formylated by formic acid/borontrichloride to give the aldehyde 34 with an acceptable yield. The reactions of resorcinol dimethylether with formic acid in the presence of super acids (mainly trifluormethansulfonic acid) in chlorobenzene or nitromethane deliver the aldehyde 21 only in small amounts.
„Denken wie ein Exeget“ – Bibeldidaktik und Hochschuldidaktik
Authors: Köhlmoos Melanie
Published: October 2019

Der Beitrag schildert die Bedingungen und Probleme einer zeitgemäßen evangelisch-theologischen Hochschuldidaktik mit Schwerpunkt auf den exegetischen Fächern. Das Hauptproblem ist, wie sich der allgemeine Wandel zur Kompetenzorientierung und zum „Shift from teaching to learning“ auch hochschuldidaktisch verwirklichen lässt. Dabei zeigt sich, dass Hochschuldidaktik in den exegetischen Fächern darauf hinarbeiten muss, die Studierenden zum „Denken wie ein Exeget“ zu ermutigen, um auch praktische Anwendungen der Bibelstudien erfolgreich durchzuführen. Die Darstellung stützt sich auf die Arbeit und Ergebnisse der Gruppe „Forum Exegese und Hochschuldidaktik. Verstehen von Anfang an“.
Bibeltexte in leichter Sprache zwischen Unterkomplexität und Exklusivität
Authors: Fuchs Monika E. , Neumann Nils
Published: October 2019

Wie wünschenswert es sein kann, biblische Stoffe in Leichter Sprache zu formulieren, ist umstritten. Mit der Forderung der Vereinten Nationen nach Inklusion gehen didaktischerseits das Engagement und die Suche nach einer sog. „Leichten Sprache“ einher, die Menschen mit Beeinträchtigung oder geringerer sprachlicher Kompetenz einen besseren Zugang zu den biblischen Inhalten ermöglichen soll. Den Befürwortern stehen aber auch Skeptiker gegenüber. Vor diesem Hintergrund stellt unser Beitrag Grundzüge Leichter Sprache vor, diskutiert die Umsetzung anhand des Gleichnisses vom Barmherzigen Samariter und leitet daraus Leitlinien für eine gelingende Praxis ab.
Religionspädagoginnen und Religionspädagogen in Schule und Gemeinde – empirische Befunde zu religionspädagogischer Professionalität bei gleichzeitiger Tätigkeit an formalen und non-formalen Bildungsorten Religionspädagogen in Schule und Gemeinde
Authors: Endres Magdalena
Published: October 2019

Religionspädagoginnen und Religionspädagogen der Evangelisch-Lutherischen Kirche in Bayern arbeiten sowohl am formalen Bildungsort Schule als auch an non-formalen Bildungsorten der Kirchlichen Bildungsarbeit. In einer qualitativ-rekonstruktiven Studie wurde der Frage nachgegangen, welche handlungsleitenden Orientierungen sich bei diesen pädagogischen Professionellen zeigen, die gleichzeitig in unterschiedlichen Bildungssettings tätig sind. Die Ergebnisse der Studie zeigen vier kontrastive Typen hinsichtlich eines Umgangs mit der Kommunikation des Evangeliums sowie eines Umgangs mit der Bildungsmodalität. Vor dem Hintergrund ausgewählter empirischer Befunde werden in diesem Artikel an zwei professionstheoretische Diskurslinien angeknüpft und Eckpunkte einer Theorie religionspädagogischer Professionalität beschrieben.
Assessment of Aggregatibacter actinomycetemcomitans and Prevotella intermedia Counts around Healthy Implants, Diseased Implants and Sound Teeth: A Preliminary Study
Authors: Yaghobee Siamak , Khorsand Afshin , Jahedmanesh Nojan , Kadkhodazadeh Mahdi
Published: October 2019

Background. This study aimed to assess Aggregatibacter actinomycetemcomitans (Aa) and Prevotella intermedia (PI) counts in gingival crevicular fluid (GCF) around healthy implants, diseased implants and sound teeth. Methods. Eight patients (four males and four females), who had healthy implants, implants with peri-implantitis and sound teeth, were selected. Samples (GCF) were analyzed using real-time polymerase chain reaction (RT-PCR). The above-mentioned bacteria were detected and counted. Data analysis in RT-PCR was carried out based on the standard curve using Prism software to compare Pi and Aa counts between the three areas (GCF around sound teeth, healthy implants and implants with peri-implantitis). Results. Pi counts were significantly higher in GCF around implants with peri-implantitis (8 implants) than around healthy implants (8 implants) (P<0.001) and sound teeth (8) (P=0.012). No significant differences were found in Pi counts in GCF around healthy implants and sound teeth (P=0.063). Aa counts in GCF around implants with peri-implantitis were significantly higher than those around healthy implants (P=0.002) and sound teeth (P=0.024). No significant differences were noted in Aa counts in GCF around healthy implants and sound teeth (P=0.57). Conclusion. Aa and Pi counts in GCF around diseased implants were higher than around healthy implants and sound teeth. Also, Aa counts were significantly higher than Pi counts.
Comparison of Antiplaque Efficacy of Commercially Available HiOra (Herbal) Mouthwash with Listerine Mouthwash: A Clinical Study
Authors: Gill Sanjeet , Kapoor Daljit , Singh Jagjit , Nanda Tarun
Published: October 2019

Background. Herbal mouthwashes nowadays are gaining popularity because they contain naturally occurring ingredients that achieve the desired antimicrobial and antiinflammatory effects. The aim of this study was to compare the efficacy of a commercially available herbal mouthwash (HiOra) with that of an essential oil-containing mouthwash, Listerine. Methods. A single-blind cross-over study was conducted on 30 dental students aged 18‒25 years. The subjects were randomly divided into two groups: A and B (n=15) and the study was divided into two phases. In phase 1, Listerine mouthwash was given to group A and HiOra mouthwash to group B. The plaque score was recorded with Turesky modification of the Quigley–Hein plaque index consecutively for 10 days. After 15 days of wash-out period, in phase 2 both groups were given the other mouthwash. Results. The plaque scores were compared and the difference between the HiOra and Listerine mouthwash was determined using Wilcoxon and Mann-Whitney tests. The differences between plaque scores were statistically insignificant (P>0.05). The results showed that HiOra and Listerine mouthwashes yielded comparable results in plaque reduction. Conclusion. Herbal mouthwash was found to be a potent plaque inhibitor, yielding results comparable to those of Listerine mouthwash. These formulations may be more appealing because they do not contain alcohol, artificial preservatives, flavors or colors.
Exercise for Nonagenarians: A Systematic Review
Authors: Miller Kyle J. , Suárez-Iglesias David , Varela Silvia , Rodríguez David , Ayán Carlos
Published: October 2019

Background:

Physical exercise has been identified as a health promotion strategy for the oldest old. However, scientific evidence regarding the benefits of exercise on nonagenarians is scarce. This systematic review aimed to evaluate the characteristics and methodological quality of investigations that have examined the effects of physical exercise on nonagenarians.

Methods:

A systematic review and evidence synthesis were conducted. The MEDLINE/PubMed, CINAHL, Scopus, SPORTDiscus, and Cochrane Library were systematically searched up to November 2018. Investigations were included if they tested the effects of an exercise intervention on people 90 years or older. The methodological quality of the randomized controlled trials was evaluated using the PEDro scale. Quality appraisal tools developed by the National Heart, Lung and Blood Institute were used to evaluate the uncontrolled and observational investigations.

Results:

Three randomized controlled trials, 1 retrospective study, 2 case reports, and 1 single-subject A-B design met the eligibility criteria. The methodological quality scores obtained from the scales ranged from poor to good. Most interventions were based on muscular strengthening, balance exercises, or a combination of both. No adverse effects were registered. In general, exercise showed a significant impact on muscular strength, while mixed effects were found regarding gait and balance. Pooled analyses indicated that interventions had significant improvements in global lower body functioning (standardized mean difference, SMD = 0.47; 95% confidence interval = 0.04, 0.90; P < .01).

Conclusions:

Exercise is a feasible therapy for nonagenarians, which can lead to improvements in physical functioning. Future research should focus on the effects of aerobic interventions, as well as the impact that exercise has on the cognitive functioning of nonagenarians.
Environmental stress influences mitochondrial metabolism in vascular cells: consequences for angiogenesis
Authors: Bowen T Scott , Egginton Stuart
Published: October 2019

While the important and varied roles that vascular cells play in both health and disease is well recognised, the focus on potential therapeutic targets continually shifts as new players emerge. Here, we outline how mitochondria may be viewed as more than simply energy-generating organelles, but instead as important sentinels of metabolic health and effectors of appropriate responses to physiological challenges.