bluuebunny/crossref_metadata_2025 huggingface dataset:
KOMPARASI KREDIBILITAS PENYELENGGARAAN UNBK DAN UNKP PADA PELAJARAN MATEMATIKA
Authors: Kusaeri Kusaeri , Hamdani A. Saepul , Suparto Suparto , Irmanila Elmita
Published: February 2020

Abstract: Administration Credibility of the Computer-based and the Paper-and-pencil National Examination in Mathematics Subject. This survey compares the administration credibility between computer-based and paper-and-pencil national examination of one subject, that is, mathematics. The credibility was measured from the perspectives of RAVEN – reputation, ability to observe, vested in­terest, expertise, and neutrality. Three schools in Pasuruan regency were selected to represent the com­puter-based, and another three to represent the paper-and-pencil test. The data were collected after the 2017 national examination using questionnaires and interview guide. The questionnaires were dis­tributed to the students and mathematics teachers, whereas the interviews were carried out with the headmasters. The results of data analysis reveal that the computer-based final exam have better credibil­ity in the areas of ability to observe and expertise, while the paper-and-pencil one in reputation and neu­trality. In terms of vested interest, the two types of test do not differ.Abstrak: Komparasi Kredibilitas Penyelenggaraan UNBK dan UNKP pada Pelajaran Matema­tika. Penelitian ini bertujuan membandingkan kredibilitas penyelenggaraan UNBK dan UNKP yang berfokus pada mata pelajaran matematika. Kredibilitas UN dalam penelitian ini dilihat dari aspek repu­tation, ability to observe, vested interest, expertise, dan neutrality atau RAVEN. Penelitian ini termasuk dalam kategori penelitian survei, dilakukan di Kabupaten Pasuruan pada Bulan April - Mei 2017 (setelah diselenggarakannya UN 2017). Sampel penelitian yakni 3 sekolah penyelenggara UNBK dan 3 sekolah penyelenggara UNKP dengan menggunakan teknik pengumpulan data berupa kuesioner dan wawancara. Kuesioner diberikan kepada siswa dan guru matematika sedangkan wawancara dilakukan pada kepala sekolah. Hasil penelitian menunjukkan bahwa UNBK unggul pada aspek ability to observe dan expertise, sedangkan UNKP unggul pada aspek reputation dan neutrality. Pada aspek vested inter­est, perbandingan antara UNBK dan UNKP adalah sama.
THE TESTING OF TEACHER’S COMPETENCE MODEL FROM MULTIMEDIA EXPERTISE PROGRAM USING CONFIRMATORY FACTOR ANALYSIS
Authors: Pawellangi Muhammad Rafie , Elmunsyah Hakkun
Published: February 2020

Abstract: The Testing of Teacher’s Competence Model from Multimedia Expertise Program Using Confirmatory Factor Analysis. The research aims to test the teacher’s competence model which be­comes the basis of evaluating the teacher’s competence in Indonesia as well as the basis of developing the education and training to improve the competence. The tested model involves several levels of measurement construct, from competence dimension, competence group, to expertise group. The ana­lyzed data in the research is the result of test namely Teacher’s Competence Test of Vocational High School teachers teaching Multimedia subject (N=2,744). The data is analyzed using Confirmatory Factor Analysis (CFA) approach. The analysis result shows that the tested model has satisfying model acuracy which means the model represents the actual data. The Root Mean Square Error of Approximation (RMSEA) = 0.000 (< 0.08), CFI = 1.000 (> 0.95), TLI = 1.000 (> 0.95). The findings also show that the model is able to explain the teacher’s phenomenon in the real world. Therefore, the evaluation process against the teacher’s competence and the intervention in the competence development using this model are empirically supported.
Análisis comparado de conmutación interregional en la nueva región del Biobío, Chile (años 2010-2017)
Authors: Pino Arriagada Osvaldo , Concha Murúa Gary
Published: March 2020

El estudio estima y analiza la información de las principales dimensiones y características de la movilidad residencia-trabajo interregional en la “nueva” Región del Biobío, contenidas en la Encuesta Nacional de Empleo (ENE), período 2010-2017. Para los principales destinos y orígenes de los conmutantes de la Región del Biobío, se investiga su relación con la dinámica de las respectivas series macroeconómicas y regionales como el INACER, con el objeto de verificar o rechazar la hipótesis de sincronía de los ciclos productivos con el flujo de conmutantes como causa de movilidad laboral. Adicionalmente por medio de un modelo de autonomía de oferta y demanda se caracteriza a las regiones de acuerdo con su condición de oferente o demandante neto, junto a un análisis de tendencia y de intensidad de la conmutación. Además, se cuantifica el impacto económico de este proceso mediante el cruce de los conmutantes con los antecedentes de ingreso medio de los ocupados por territorio e ingresos medios por actividad económica de la Región del Biobío.
Carbon dioxide elimination pattern at cardiopulmonary exercise testing in patients with low ejection fraction value
Authors: Kamenskaya O. V. , Loginova I. Yu. , Chernyavskiy A. M. , Doronin D. V. , Lomivorotov V. V.
Published: February 2020

The objective of this study was to evaluate partial pressure of end tidal carbon dioxide (PetCO2) over time on exertion (E) and its predictive value in evaluation of risk of unfavorable outcome in patients with low ejection fraction (EF) value.

Materials and Methods. Patients (n = 53) with pronounced chronic heart failure (CHF), included in heart transplantation waiting list, were enrolled in the prospective study. All patients underwent cardiopulmonary exercise testing (CPET). Mortality or INCOR left ventricle bypass system implantation according to vital indications within 1 year of follow-up were evaluated as an end-point.

Results. Patients with CHF and low EF were characterized by low parameters of E tolerance and peak oxygen consumption (10.4 (9.6–11.7) ml/min/kg). The average PetCO2 level by group was 30.4 (28.3–33.0) mm Hg; in 32% of patients this value decreased or did not change in CPET compared with that in resting state. The significant relationship between increased risk of unfavorable outcome within 1 year of follow-up with low baseline PetCO2 value (odds ratio (OR) – 0.22 (0.05–0.87); p = 0.020) and absence of its increment in PE (OR – 0.16 (0.10–0.54); p = 0.009) was observed.

Conclusion. The significant predictive factors of unfavorable outcome within 1 year of follow-up in patients with pronounced CHF and low EF include PetCO2 value in resting state, as well as PetCO2 change over time after E challenge.
Medical subject headings for the scientific groups evolution analysis on the example of academician A.I. Archakov's scientific school
Authors: Ilgisonis E.V. , Kiseleva O.I. , Lisitsa A.V. , Poverennaya E.V. , Toporkova M.N. , Ponomarenko E.A.
Published: February 2020

This paper proposes a method of comparative analysis of scientific trajectories based on bibliographic profiles. The bibliographic profile (“meshprint”) is a list of MeSH terms (key terms used to index articles in the PubMed), indicating the relative frequency of occurrence of each term in the scientist's articles. Comparison of personalized bibliographic profiles can be represented in the form of a semantic network, where the nodes are the names of scientists, and the relationships are proportional to the calculated measures of similarity of bibliographic profiles. The proposed method was used to analyze the semantic network of scientists united by the academic school of the academician A.I. Archakov. The results of the work allowed us to show the relationship between the scientific trajectories of one scientific school and to correlate the results with world trends.
Electroanalytical and electrocatalytical characteristics of cytochrome P450 3A4 using electrodes modified with nanocomposite carbon nanomaterials
Authors: Kuzikov A.V. , Bulko T.V. , Koroleva P.I. , Masamrekh R.A. , Babkina S.S. , Gilep A.A. , Shumyantseva V.V.
Published: February 2020

The electroanalytical characteristics of recombinant cytochrome P450 3A4 (P450 3A4) immobilized on the surface of screen-printed graphite electrodes modified with multi-walled carbon nanotubes have been studied. The role and the influence of graphite working electrode modification with carbon nanotubes on electroanalytical characteristics of cytochrome P450 3A4 have been demonstrated. The conditions for the immobilization of cytochrome P450 3A4 on the obtained screen-printed graphite electrodes modified with carbon multi-walled nanotubes have been optimized. The electrochemical parameters of the oxidation and reduction of the heme iron of the enzyme have been estimated. The midpoint potential E0′ was -0.35±0.01 V vs Ag/AgCl; the calculated heterogeneous electron transfer rate constant ks, was 0.57±0.04 s-1; the amount of electroactive cytochrome P450 3A4 on the electrode Г0, was determined as (2.6±0.6)⋅10-10 mol/cm2. The functioning mechanism of P450 3A4-based electrochemical sensor followed the “protein film voltammetry”. In order to develop electrochemical analysis of drugs being substrates of that hemoprotein and respective medical biosensors the voltammetric study of catalytic activity of immobilized cytochrome P450 3A4 was carried out. Electrocatalytic properties of cytochrome P450 3A4, immobilized on modified screen-printed graphite electrodes, has been investigated using erythromycin (macrolide antibiotics). It has been shown that the modification of electrodes plays a decisive role for the study of the properties of cytochromes P450 in electrochemical investigations. Smart electrodes can serve as sensors for analytical purposes, as well as electrocatalysts for the study of biotransformation processes and metabolic processes. Electrodes modified with carbon nanomaterials are applicable for analytical purposes in the registration of hemoproteins. Electrodes modified with synthetic membrane-like compounds (e.g. didodecyldimethylammonium bromide) are effective in enzyme-dependent electrocatalysis.
Metaplastic breast carcinoma with chondrosarcomatous differentiation: an unusual disease with a worse prognosis
Authors: Lalhruaizela Samuel , Mehra Bhupendra
Published: February 2020

Metaplastic breast carcinoma (MBC) has an incidence of <1% of all breast cancers and MBC with chondrosarcomatous differentiation is even more rare, <0.1% of all cases. The World Health Organization have classified MBC into pure epithelial-type and mixed epithelial and mesenchymal type. The epithelial-type MBC is sub-classified into squamous cell carcinoma, adenosquamous carcinoma and adenocarcinoma with spindle cell differentiation; mixed type MBC is sub-classified into carcinosarcoma and carcinoma with osseous and chondroid metaplasia. Metaplastic carcinomas of the breast are characterized by large tumour size and rapid  growth, and they are usually estrogen receptor, progesterone receptor, and HER2/neu negative and tend to have a worse prognosis than other triple negative breast cancers. There is a noteworthy increased risk of tumour recurrence and a worse prognosis with MBC compared with invasive lobular carcinoma and infiltrating duct carcinoma. We report a case of metaplastic carcinoma with extensive chondroid differentiation that is chondrosarcoma and chondroid metaplasia along with classic infiltrating duct carcinoma with involvement of ipsilateral axillary lymph nodes.
Políticas públicas de turismo: análise crítica dos planos de marketing turístico federais brasileiros
Authors: Costa Helena Araújo , Marques Nayara , Weber Marina
Published: February 2020

Este artigo tem como objetivo analisar criticamente os planos de marketing turístico do Brasil. Para isso, foram analisados os planos federais com foco no marketing turístico internacional e doméstico : Cores do Brasil (2005), Aquarela (2003-2006), Aquarela (2007-2010), Aquarela 2020 e Experiências do Brasil (2014-2018). A pesquisa é qualitativa e de caráter exploratório-descritivo, baseada em técnica documental-bibliográfica com coleta de dados fundamentada em nove categorias: diagnóstico, objetivos, metas, participação, continuidade, inovação, coordenação, intervenções propostas e priorização de atuação. Entre os resultados ficou evidenciado que todos os planos possuem diagnósticos, mas a maioria não explícita ou hierarquiza os problemas identificados, bem como indica pouca continuidade e conexão com resultados anteriores. Assim, as fragilidades mais recorrentes dizem respeito a: avaliação dos resultados dos planos anteriores, coerência entre problemas diagnosticados e objetivos, fundamentação para a definição das metas e definição dos mercados prioritários para promoção.
Raciocínio moral em questões sociocientíficas: argumentação de licenciandos de ciências sobre a eutanásia
Authors: De Almeida Mayara Tavares , Guimarães Marcio Andrei
Published: February 2020

O objetivo desse trabalho foi identificar a extensão das habilidades argumentativas e estabelecer a possível presença de níveis de raciocínio moral nos argumentos produzidos por professores de ciências em formação, a respeito da eutanásia como questão sociocientífica (QSC). As questões sociocientíficas são caracterizadas por serem temas controversos, geradores de discussões que envolvem valores, raciocínio moral e tomada de decisão. Para a realização dessa proposta de trabalho, utilizamos o grupo focal como método de coleta de dados. O grupo focal se mostrou adequado para esta pesquisa, já que buscávamos analisar as falas que emergiam durante a discussão entre os participantes. Para análise dos dados, em um primeiro momento, utilizamos a abordagem metodológica argumentativa de Toulmin para construir os layouts argumentativos de cada participante da pesquisa. Em um segundo momento, cada um desses layouts foi analisado segundo a taxonomia de raciocínio moral de Kohlberg. Como resultados verificamos que, de maneira geral, os professores de ciências em formação são capazes de construir argumentos e que os níveis de raciocínio moral apresentados nos mostraram que poucas pessoas se baseiam em leis para construir seus raciocínios morais no processo de tomada de decisão a respeito da eutanásia.
Piaget como referencial teórico para o ensino e aprendizagem de adolescentes e adultos
Authors: Yamazaki Sérgio Choiti , Yamazaki Regiani Magalhães de Oliveira , Labarce Eliane Cerdas
Published: February 2020

Foram muitas as contribuições da epistemologia de Jean Piaget ao ensino de diversas áreas do conhecimento no decorrer das últimas décadas. As perspectivas interacionistas, críticas e progressistas que têm sido comumente adotadas, deram ao movimento construtivista um potencial interpretativo capaz de analisar os processos didático-pedagógicos por meio de superações de concepções individuais de senso comum. Apesar disso, por meio de nossa vivência em nossas atividades docentes cotidianas, levantamos a hipótese de que não é incomum a compreensão do aporte teórico piagetiano como uma referência teórica capaz de lidar somente com situações que envolvem eminentemente crianças e o início da adolescência. Os manuais didáticos que visam divulgar as contribuições piagetianas, apontam preponderantemente os conceitos e análises que se referem ou se enquadram à educação infantil, o que obstaculiza sua incorporação como referência teórica para investigações de situações que remetem ao Ensino Médio e ao Ensino Superior. Este trabalho trata-se de análises de uma pesquisa empírica feita com alunos de uma universidade pública do Brasil, que visou corroborar ou refutar nossa hipótese. Por fim, sugerimos para formação inicial ou continuada de professores, materiais que dizem respeito a pesquisas que se usam desta epistemologia a fim de estendê-la e de torná-la acessível para o docente em seu trabalho cotidiano
Histerectomía laparoscópica total en la unidad de endoscopia ginecológica de la Clínica del prado, Medellín (Colombia) 2002 - 2008
Authors: De Los Ríos José F. , Castañeda Juan D. , Calle Gustavo A. , Serna Eduardo , Vásquez Ricardo A. , Arango Adriana M. , Flórez Orlando J. , Mejía Ana M. , Arango Victoria , Palacio Tatiana
Published: February 2020

Objetivo: describir la experiencia en la práctica de Histerectomía Laparoscópica Total (HLT) con énfasis en las complicaciones presentadas.Metodología: el presente es un estudio de cohorte histórica en el cual se incluyeron las pacientes que fueron intervenidas entre diciembre de 2002 y abril de 2008 y en quienes, además, se completó al menos 90% de la información requerida en un formulario prediseñado. Durante la investigación, se evaluaron las características sociodemográficas, las indicaciones de cirugía, el porcentaje de laparoconversión y las causas de la misma, el tiempo quirúrgico, la pérdida sanguínea estimada, el tiempo de hospitalización, el número de dosis de analgésicos requeridos, los días de incapacidad y las complicaciones intraoperatorias y postoperatorias.Resultados: en total se incluyeron 837 pacientes, cuya edad promedio fue 42,7 años. 83,8% de las mujeres eran ASA I (American Society of Anesthesiologists) y la principal enfermedad de base fue la hipertensión arterial (9,9%). En 822 de ellas, el procedimiento se llevó a cabo por laparoscopia mientras que 15 (1,7%) requirieron laparoconversión. Las indicaciones más frecuentes para la cirugía fueron miomatosis (43,8%) y hemorragia uterina anormal (36,1%). Adicional a esto, el tiempo quirúrgico promedio fue 85,9 minutos, la pérdida sanguínea media fue de 60,6 mL y la tasa total decomplicaciones llegó a ser 12,5%; de lacuales,3,1% lo constituyeron complicaciones mayores.Conclusiones: la tasa de complicaciones de la histerectomía laparoscópica total es similar a la informada en la literatura y está acompañada de una estancia hospitalaria breve.
THE USE OF AN ADAPTED CLINICAL AND PSYCHOLOGICAL APPROACH TO THE TREATMENT OF PATIENTS WITH ENDOMETRIAL HYPERPLASIA IN THE POLYCLINIC
Authors: Efanova N. A , Emel’yanova T. A , Mikhel’son Aleksandr F. , Lazareva I. P , Lebedenko E. Yu , Bogachenko S. M , Kutuzova E. A , Groshilina G. S , Markina V. V
Published: February 2020

The study confirmed that reproductive age patients with endometrial hyperplasia with initial severe hyperestrogenemia, autonomic regulation imbalance, and pronounced psychosomatic disorders as hormonal therapy showed marvelone in the prolonged mode, because in this case the gradient of estrogen incidence is smoother than during application depot forms of buserelin. In addition, the possibility of simplifying the algorithm for applying a verifiable clinical-psychological approach through the use of simple, automated physiological and psychodiagnostic research methods, which makes it possible to effectively use this algorithm in polyclinic conditions, is shown.
Correct Expression of Material Derivative in Continuum Physics
Authors: Sun Bohua
Published: March 2020

The material derivative is important in continuum physics. It shows that $\frac{d }{dt}=\frac{\partial }{\partial t}+(\bm v\cdot \bm \nabla)$ is a wrong expression. The correct expression $ \frac{d (:)}{dt}=\frac{\partial }{\partial t}(:)+\bm v\cdot [\bm \nabla (:)]$ is to be formulated.
Penerapan Model Pembelajaran Agama Islam bagi Anak Berkebutuhan Khusus di Sekolah Dasar Kota Samarinda
Authors: Hermawati Hermawati
Published: February 2020

Actually the child with special needed is a child that has privileges. At inclusive school, children with special needed are mingled with normal children in a school. Here, the children with special needed and normal children are treated equally. Based on the fact, the researcher is interested to conduct a research about the uniqueness of the child with special needed, especially about Islamic teaching model for the child with special needed in one of state school of elementary school in Samarinda. Because not all teachers can apply the model. Sometimes, they find difficulties in choosing the appropriate model in teaching them because there are some children those who have different characteristics. The objective of this research is to identify Islamic teaching model for the child with special needed at SD Negeri 016 District Sungai Kunjang Samarinda City is assigned as inclusive school. The design of this research is qualitative. The data analysis of the study is descriptive qualitative, where it is conducted with a natural setting. The focus of the research is to find the concept in application of Islamic teaching model for the child with special needed at SD Negeri 016 District Sungai Kunjang Samarinda City. The subject of the research is Islamic Education teachers and students (the children with special needed) are as informant. The instruments of the research are interview guide, observation sheet and documentation.The result of the research is in designing program, hopefully must be oriented and can define the strategy and appropriate model that can be applied to the children with special needed. Based on the data display above, it is showed that Islamic teaching model that used in teaching is very simple, they do not use electronic devices/technology, they only use pictures are made by teacher, puzzle, story repetition model, and demonstration. Instructional media, infrastructure is not complete. The evaluation must be repeated until reach KKM is determined. Obstacles are faced is very different from normal children, because obstacles that is faced is suitable with the children with special needed, namely mental obstacle of each student. While obstacle is faced by Islamic education teachers is lack of instructional media, infrastructure and supervision.
Mutu Pendidikan Sekolah Dasar di Kabupaten Kutai Timur
Authors: Hasanah Siti Nur
Published: February 2020

This research is motivated by the quality of education in East Kutai District. It was not equally between infrastructure and suprastructure school developments in the rural and the urban areas. It also can be effect to the quality of educations in East Kutai District, especially in rural areas. The aims of this research are describes the quality condition of elementary schools in East Kutai District, discribes supporting factors and obstacle factors, and the efforts of goverment (ministry of education) to improve the quality education  of elementary schools in East Kutai District.This is descriptive qualitative research. It was located in education goverment office (ministry of education).The result of this research was indicated that the quality education of elementary school in East Kutai Distric is excellent. It shows from the increase accreditation result every year. At 2016 all of elementary schools in East Kutai District was accredited. It was good progress. Eight national education standarts have been achieved. The supporting factors to increase the quality education of elementary school in East Kutai District, such us:  qualified human resources, a lot of budget funds, between elementary schools and ministry of education has been mutual support, good infrastructure development, and good geographic location. Even while obstacle factors such us: small budget funds, the school locations are so far from the town, education policies always change every a new minister education, and different understanding about education mindset. The efforts from education department goverment (ministry of education)  to improve the quality education of elementary school in East Kutai District are: complete the database, reorganized institution, change mindset the teachers from teachers become educators, make a program training and coaching, adjusting teacher qualifications,  make a program one sub district one favorite school, make a curriculum development, strengthening of character education, make a programe one student one book of curriculum 2013, make a mapping and dissemination for all teachers, rolling teachers and head master, make a program rehabilitation of all facilities and infrastructure, do controling from UPT.
Penerapan Kreativitas Melalui Eksprimen dan Musik dalam Pengembangan Kemampuan Kognitif Anak Usia Dini
Authors: Nasution Nur Kholidah
Published: February 2020

This research attempts to (1) describe the development of creativity through experiment, (2) and give some stimulation for childrens to try and explore their experiences (3) for developing the creativity of the children's be means of experiments (4) developing music creativities (5) Music for early childhood developments. The early childhood it's being primary ages and has characterized to discover something. Childrens exactly more interest for studying with practice directly than just hearing and seeing around .children are very happy to learn by dealing directly with material presented. A good example for this is when children were taken out of the room and for developing their capabilities with experiment greatly helping children to be more creatives and intelligence. The importance of music for early childhood attempting to increase their creativities and imagination and able to stimulate the memory. Therefore music is very useful o teach children for better development. Music is a place to express the atmosphere of self because with music childrens given opportunity to express their feelings and ideas by dancing and moving by following music sounds
Pengaruh Pendidikan Agama dalam Keluarga dan Teman Sebaya terhadap Budaya Religius Siswa SMA se-Kecamatan Muara Muntai Kutai Kartanegara
Authors: Erhansyah Erhansyah
Published: February 2020

The religious culture is one of the main elements in the effort to bring children toward religious education, and that education begins with the family, then the family of religious education in particular will be key also in the formation of religious culture in children or students. Education key lies in spiritual education in the sense of nuanced religiuitas education, religious education for children. Because of religious education in the family can make the students motivated to behave religion in school. Education is either associated with Allah (hablumminallah) and relationships with other human beings (hablumminannas) and also the human relationship with the environment. This research was conducted with a quantitative approach that is descriptive correlational that is looking for a relationship and influence of the independent variables religious education in the family (X1) peers (X2) the religious culture of the dependent variable (Y), both individually and together. The results of this study indicate that each independent variable has a positive correlation and influence signifikan namely religious education in the family (0,266) and the religious culture of schools (0,356). Are connected with the same significant difference between religious education in families with peers in religious culture with a value of R 0,368, R2 0,135. This means that the percentage contribution of the influence of the independent variables (religious education in the family and peers) on the dependent variable (religious culture) of 13,5% From the results of numerical analysis it can be described that religious education in the family and peers have an influence on religious culture and the influence of peers is greater than religious education in the family's religious culture.
Pengaruh Bimbingan Belajar dan Pengawasan Orang Tua terhadap Motivasi Belajar Siswa di Kawasan Industri Kota Tenggarong
Authors: Sugianto Sugianto
Published: February 2020

Guidance services in schools are one way to motivate student learning in schools, therefore guidance programs must always be owned or run in every educational unit. Likewise the role of parents at home in terms of supervision of learning for children, with environmental conditions in industrial estates, busy parents and lack of supervision, which greatly influences their motivation to learn. But among the teachers and parents, there are some who have carried out tutoring and supervision of their children. This study aims to determine the effect of tutoring and parental supervision together (simultaneous) on students' motivation to study in Public Elementary Schools in Tenggarong industrial area. This research is a Field Work Recearch (field research) with a quantitative / statistical approach with a population of 107 students of class V and VI of State Elementary School 006 and 016 Tenggarong with a sample of 84 respondents obtained from sampling using the Proportionate Stratified Random Sampling technique. The instrument used in the form of a questionnaire / questionnaire and the data analysis technique used is the F test to determine the effect of variables simultaneously. Based on the data from the results of the calculation obtained from the results of the F count test = 27.015> F table = 3.12, at a significant level obtained 0,000 <0.05 has a contribution of 40% so that it can be said that there is a significant influence of tutoring and supervision of parents simultaneously students' motivation to study in Public Elementary Schools in Tenggarong industrial area.
The Method of Sources and Sinks—A Perspective
Authors: Raghavan Rajagopal
Published: February 2020

Professor Henry J. Ramey once remarked that he wished he had devoted more time to the study of recovery problems but that the intellectual challenges of issues in well-test analysis were much too enticing. Among his myriad interests, the method of sources and sinks had a special place. Undoubtedly, his early work in thermal recovery1 served as a spark for his "deep affection" for the method of sources and sinks. This communication is a bird's-eye-view of this subject as it pertains to well-test analysis. I hope that this note will spark an interest in this topic for those unfamiliar with this method of solving partial differential equations and at the same time provide additional insights to those familiar with this topic. The examples considered here have been chosen with two perspectives. First, given the nature of this contribution, they serve a historical purpose. Second, they address some issues that need to be highlighted.
A New Material for Deep Well Cementing
Authors: Smith Dwight K.
Published: February 2020

Published in Petroleum Transactions, Volume 207, 1956, pages 59–64.

A new pozzolanic composition has been developed for cementing oil wells where moderate to high temperatures prevail. This material is an entirely different concept to other oil well cementing materials, such as portland cements, cements containing additives, or liquid resins. Its characteristics are such that it is not, at present, recommended for use at temperatures less than 140°F. It can be either accelerated or retarded across a wide range of well conditions.

This new cement is composed of a pozzolanic material, hydrated lime, and a chemical activator to give it early initial strength. This material can be used in wells from 6,000 to 18,000 or more feet where temperature conditions are similar to those along the Gulf Coast. This cement, when set, has no soluble portion subject to leaching or any compounds that should be attacked by sulfate waters or brines. For this reason, it should be permanent when placed adjacent to formations carrying any type of fluid.

The compressive strengths in 24 hours are more than adequate for wells where temperatures are 140°F and higher. These values are in excess of many other types of cementing composition presently in use in the field. This pozzolanic composition does not retrogress in strength at high temperatures as do some other types of cementing materials.

The slurry weights of this material will vary slightly according to the specific gravity and water requirements of the pozzolan itself. The materials covered herein will mix from 13.5 to 14.3 lb/gal, and will have a waiting-on-cement time comparable to other materials used under the same conditions.

Economically speaking, this composition is less expensive than either portland cements or retarded cements presently being used under deep well conditions.

Introduction

Pozzolans are "siliceous material which, though not cementitious in themselves, contain constituents which at ordinary temperatures will combine with lime in the presence of water to form compounds which have a low solubility and possess cementing properties." The use of pozzolanic materials dates back many hundreds of years and both the ancient Greeks and Romans were aware that certain volcanic deposits, if finely ground and mixed with lime and sand, yielded a mortar which possessed special properties. Generally, the early strengths of such materials were rather weak and were considered insufficient for modern commercial usages.
Effect of Clay and Water Salinity on Electrochemical Behavior of Reservoir Rocks
Authors: Hill H.J. , Milburn J.D.
Published: February 2020

Published in Petroleum Transactions, Volume 207, 1956, pages 65–72.

In quantitative interpretation of electrical logs the presence of clay minerals introduces an additional variable which further complicates an already complex problem. Although recognizing the difficulties introduced as a result of the heterogeneity of natural sediments and despite the present incomplete state of knowledge regarding electrochemical behavior of shades, disseminated clay minerals and concentrated electrolytes, it was felt that useful empirical correlations might be obtained from experimental investigation.

Six typical sandstone formations, having a wide variety of petrophysical properties, were selected for the study. Approximately 45 samples from each formation were selected to satisfactorily represent the range of pore size distribution within the particular formation. As a matter of general interest, four limestone formations were also included in the investigation.

Previously proposed equations relating to resistivity, SP and interrelationship of the two phenomena have, where possible, been tested with data obtained in this investigation. These equations do not satisfactorily describe experimental behavior of samples through all degrees of shaliness or throughout the range of brine solution resistivities normally encountered in logging practice.

An empirical equation has been developed which quantitatively relates formation resistivity factor to saturating solution resistivity, porosity, and "effective clay content." This relation is indicated to be uniformly applicable to clean or shaly reservoir rocks.

It is shown that both the SP and resistivity phenomena of shaly samples are related to the sample cation exchange capacity per unit pore volume. The independent chemical determination of this parameter is thus a means of determining the "effective clay content" of samples.

Some implications regarding theory and electric log interpretation of shaly sands are discussed.

Introduction

The use of electrical resistivity logs as a means for estimating formation porosity is based upon the original work of Archie.
Identification of NHXs in Gossypium species and the positive role of GhNHX1 in salt tolerance
Authors: Long Lu , Zhao Jing-Ruo , Guo Dan-dan , Ma Xiao-Nan , Xu Fu-Chun , Yang Wen-Wen , Gao Wei
Published: March 2020

Background: Plant Na+/H+ antiporters (NHXs) are membrane-localized proteins that maintain cellular Na+/K+ and pH homeostasis. Considerable evidence highlighted the critical roles of NHX family in plant development and salt response; however, NHXs in cotton are rarely studied.Results: The comprehensive and systematic comparative study of NHXs in three Gossypium species was performed. We identified 12, 12, and 23 putative NHX proteins from G. arboreum, G. raimondii, and G. hirsutum, respectively. Phylogenetic study revealed that repeated polyploidization of Gossypium spp. contributed to the expansion of NHX family. Gene structure analysis showed that cotton NHXs contain many introns, which will lead to alternative splicing and help plants to adapt to high salt concentrations in soil. The expression changes of NHXs indicate the possible differences in the roles of distinct NHXs in salt response. GhNHX1 was proved to be located in the vacuolar system and intensively induced by salt stress in cotton. Silencing of GhNHX1 resulted in enhanced sensitivity of cotton seedlings to high salt concentrations, which suggests that GhNHX1 positively regulates cotton tolerance to salt stress.Conclusion: We characterized the gene structure, phylogenetic relationship, chromosomal location, and expression pattern of NHX genes from G. arboreum, G. raimondii, and G. hirsutum. Our findings indicated that the cotton NHX genes are regulated meticulously and differently at the transcription level with possible alternative splicing. The tolerance of plants to salt stress may rely on the expression level of a particular NHX, rather than the number of NHXs in the genome. This study could provide significant insights into the function of plant NHXs, as well as propose promising candidate genes for breeding salt-resistant cotton cultivars.
Birth outcomes in a Swedish population of women reporting a history of violence including domestic violence during pregnancy: A longitudinal cohort study
Authors: Finnbogadóttir Hafrún , Baird Kathleen , Thies-Lagergren Li
Published: March 2020

Background: Victimisation of women is encountered in all countries across the world, it damages the mental and physical health of women. During pregnancy and the postpartum period, women are at a greater risk of experiencing violence from an intimate partner. The aim of this study was to explore childbirth outcomes in a Swedish population of women reporting a history of violence including domestic violence during pregnancy.
Methods: A longitudinal cohort design was used. In total, 1939 pregnant women ≥ 18 years were recruited to answer two questionnaires, both questionnaires were administered in the early and late stages of their pregnancy. The available dataset included birth records of 1694 mothers who gave birth between June 2012 and April 2014. Statistical analyses included descriptive statistics, T-test and bivariate logistic regression. Results: Of 1694 mothers 38.7 % (n = 656) reported a history of violence and 2% (n = 34) also experienced domestic violence during pregnancy. Women who were single, living apart from their partner, unemployed, smoked and faced financial distress were at a higher risk of experiencing violence (p = 0.001). They also had significant low scores on the SOC-scale and high EDS-scores ≥ 13 (p =0.001) when compared to women without a history of violence (p = 0.001). Having a history of violence increased the woman’s risk of undergoing a caesarean section (OR 1.33, 95 % CI 1.02 -1.70). A history of emotional abuse also significantly increased the risk of having a caesarean section irrespective of whether it was a planned or an emergency caesarean section (OR 1.50, 95% CI 1.09-2.06). Infants born to a mother who reported a history of violence, were at significant risk of being born premature < 37 weeks of gestation compared to infants born by mothers with no history of violence (p = 0,049). Conclusions: A history of violence and/or exclusively a history of emotional abuse has a negative impact on childbirth outcomes including caesarean section and premature birth. Therefore, early identification of a history of or ongoing violence is crucial to provide women with extra support which may have positive impact on her birth outcomes.
Analysis of the causes of cervical lymphadenopathy using Fine-Needle Aspiration Cytology combining cell block in Chinese Patients with and without HIV infection
Authors: Sun Lei , Zhang Liang , Yang Kun , Chen Xiang-mei , Chen Jia-min , Xiao Jiang , Zhao Hong-xin , Ma Zhi-yuan , Qi Li-ming , Wang Peng
Published: March 2020

Background

Cervical lymphadenopathy refers to a frequently observed clinical presentation in numerous pathological conditions. A wide spectrum of diseases can cause cervical lymphadenopathy, irrespective of the fact that the patients are infected with HIV or not. The present study focuses on validating whether the causes of cervical lymphadenopathy differ significantly in HIV and non-HIV patients by using fine-needle aspiration cytology (FNAC) combining cell block.

Methods

A total of 589 patients with cervical lymphadenopathy were recruited in the FNA clinic. The samples were obtained by an auto-vacuumed syringe that benefited the sampling more materials. The cytological smears were prepared by Hematoxylin and Eosin (HE), Periodic Acid Schiff (PAS), Gomori’s methenamine silver (GMS) and acid-fast staining. Cell blocks were made if required, and immunohistochemistry stain was performed on the cell block section.

Results

The study found 453 (76.9%) patients with HIV and 136 (23.1%) patients without HIV infection. The average age of HIV-infected patients was 34.8 ±10.2 years, which was significantly lower than that of non-HIV-infected patients (42.9 ±18.1 years) (p<0.01). Of all patients infected with HIV, 390 (86.1%) were males. This proportion was significantly higher than that of non-HIV-infected patients [65/136 (47.8%)] (p<0.01). The major causes of cervical lymphadenopathy in HIV positive patients were mycobacterial infection (38.4%), reactive hyperplasia (28.9%), non-specific inflammation (19.9%), and malignant lesions (4.2%). In contrast, the most common causes in HIV negative patients were reactive hyperplasia (37.5%), malignancy (20.6%), non-specific inflammation (19.1%) and mycobacterial infection (12.5%). Opportunistic infections such as non-tuberculous mycobacteria (4.2%), cryptococcosis (1.5%), Talaromyces marneffei (1.5%) and other fungi (0.4%) were found only in HIV-infected individuals. Non-Hodgkin’s lymphoma (2.4%) was the most common malignant lesion in patients with HIV infection, followed by Kaposi's sarcoma (0.9%) and metastatic squamous cell carcinomas (0.7%). However, the most common malignancy in non-HIV-infected patients was metastatic carcinomas (14%) including small cell carcinomas, adenocarcinomas, squamous cell carcinomas and hepatocellular carcinoma, which were noticeably greater than the HIV patients (p<0.01).

Conclusions

There were significantly different causes of cervical lymphadenopathy in HIV infected and non-HIV infected patients. FNAC was a useful diagnostic method for differential diagnosis of cervical lymphadenopathy.
Identifying Phenogroups in Patients with Subclinical Diastolic Dysfunction Using Unsupervised Statistical Learning
Authors: Kaptein Yvonne E. , Karagodin Ilya , Zuo Hongquan , Lu Yu , Zhang Jun , Kaptein John S. , Strande Jennifer
Published: March 2020

Background Subclinical dysfunction is a precursor for developing heart failure with preserved ejection fraction (HFpEF); yet not all patients progress to HFpEF. Our objective was to evaluate clinical and echocardiographic variables to identify patients who develop HFpEF. Methods Clinical, laboratory, and echocardiographic data were retrospectively collected for 81 patients without HF and 81 matched patients with HFpEF at the time of first documentation of subclinical diastolic dysfunction. Density-based clustering or hierarchical clustering to group patients based on 65 total variables including 19 categorical and 46 numerical variables. Logistic regression analysis was conducted on the entire study population as well as each individual cluster to identify independent predictors of HFPEF. Results Unsupervised clustering identified 3 subgroups which differed in gender composition, severity of cardiac hypertrophy and aortic stenosis, NT-proBNP, percentage of patients who progressed to HFpEF, and timing of disease progression from diastolic dysfunction to HFpEF to death. Clusters that had higher percentages of women had progressively milder cardiac hypertrophy, less severe aortic stenosis, lower NT-proBNP, were diagnosed at an older age with HFpEF, and survived to an older age. Independent predictors of HFpEF for the entire cohort included diabetes, chronic kidney disease, atrial fibrillation, and diuretic use, with additional predictive variables found for each cluster. Conclusions Cluster analysis can identify phenotypically distinct subgroups of patients with diastolic dysfunction. Clusters differ in HFpEF and mortality outcome. In addition, the variables that correlate with and predict HFpEF outcome differ among clusters.
Maple Syrup Urine Disease in Brazilian Patients: Variants and Clinical Phenotype Heterogeneity
Authors: Margutti Ana Vitoria Barban , Silva Wilson Araújo , Garcia Daniel Fantozzi , de Molfetta Greice Andreotti , Marques Adriana Aparecida , Amorim Tatiana , Prazeres Vânia Mesquita Gadelha , Silva Raquel Tavares Boy da , Miura Irene Kazue , Neto João Seda , Santos Emerson de Santana , Santos Mara Lúcia Schmitz Ferreira , Lourenço Charles Marques , Tonon Tássia , Sperb-Ludwig Fernanda , de Souza Carolina Fischinger Moura , Schwartz Ida Vanessa Döederlein , Junior José Simon Camelo
Published: March 2020

Background: Maple syrup urine disease (MSUD) is an autosomal recessive inherited metabolic disease caused by deficient activity of the branched-chain α-keto acid dehydrogenase (BCKD) enzymatic complex. BCKD is a mitochondrial complex encoded by BCKDHA , BCKDHB , DBT , and DLD genes. MSUD is predominantly caused by Variants in BCKDHA , BCKDHB , and DBT genes encoding the E1α, E1β, and E2 subunits of BCKD complex, respectively. The aim of this study was to characterize the genetic basis of MSUD by identifying the point variants in BCKDHA , BCKDHB , and DBT genes in a cohort of Brazilian MSUD patients and to describe their phenotypic heterogeneity. It is a descriptive cross-sectional study with 21 MSUD patients involving PCR and sequencing. Results: Nine new variants predicted as pathogenic were found between 30 variants identified in the 21 patients analyzed: two in the BCKDHA gene (p.Gly56Arg, and p.Tyr120Ter); five in the BCKDHB gene (p.Gly131Val, p.Glu146Glnfs*13, p.Phe149Cysfs*9, p.Cys207Phe, and p.Lys211Asn); and two in the DBT gene (p.Glu148Ter and p.Glu417Val). Seventeen pathogenic variants were previously described and four variants showed no pathogenicity according to in silico analysis. Conclusion: Given that most of the patients received late diagnoses, the study results do not allow us to state that the molecular features of MSUD variant phenotypes are predictive of clinical severity. Keywords: inborn errors of metabolism; maple syrup urine disease; branched-chain amino acids; valine; leucine; isoleucine.
The Adoption Level of Electronic Health Records in Turkish Hospitals and the Relation with Hospital Sizes
Authors: Kose Ilker , Rayner John , Birinci Suayip , Ulgu Mustafa Mahir , Yilmaz Ismayil , Guner Seyma
Published: March 2020

Background: Considering the benefits of using electronic health records (EHR) for maintaining the overall quality of clinical care, the nationwide adoption of EHR in hospitals has become a policy priority. The electronic medical record maturity model (EMRAM) is one of the most popular survey tools developed by the Healthcare Information and Management Systems Society (HIMSS) that measures the level of adoption for EHR functions in a hospital or a secondary care setting. Turkey has accomplished many standardizations and infrastructural studies in the health IT domain as a part of the first phase of the Health Transformation Program between 2003 and 2017. The Turkish MoH applied a bottom-up approach to adopting EHR in public hospitals, as the USA did. This study aims to measure the EHR adoption level of public hospitals in Turkey and criticize the relation between adoption and hospital size. Methods: EMRAM surveys were completed by 600 (68.9%) public hospitals of Turkey between 2014 and 2017. The availability and prevalence of medical information systems and EHR functions were measured. The association between hospital size and the availability/prevalence of EHR functions was also calculated. Results: We found that 63.1% of all hospitals in Turkey have at least basic EHR functions, and 36% have comprehensive EHR functions, which is better than the results of Korean hospitals of 2017 but still lower than the USA hospitals of 2015 and 2017. Our findings suggest that small hospitals are better than larger hospitals at adopting certain EHR functions. Conclusion: Measuring the overall adoption level of EHR functions is an emerging approach and a beneficial tool for the strategic management of countries. This study is the first one covering all public hospitals in a country by using EMRAM. It can be suggested that using a bottom-up approach as applied by the USA on adopting EHR in public hospital gives successful results also in Turkey. The results are used by MoH of Turkey to disseminate the benefits of EHR functions overall in the country.