bluuebunny/crossref_metadata_2025 huggingface dataset:
COMPREENDENDO A SOMA DE FRAÇÕES COM FLUTUADORES DE PISCINA RECORTADOS À LUZ DA TEORIA DOS REGISTROS DE REPRESENTAÇÃO SEMIÓTICA
Authors: Silva Daniela Mendes Vieira da
Published: July 2020

O presente texto apresenta um recurso elaborado para auxiliar o processo de ensino aprendizagem de operações com frações. É sabido que o processo de ensino de operações com frações, em especial da sua soma (e, consequentemente, da subtração pela sua natureza ser compartilhada), tem apresentado dificuldades, o que demanda a elaboração de novas abordagens para a promoção de sua aprendizagem. Para a elaboração do material que aqui propomos utilizamos a Teoria dos Registros de Representação Semiótica (TRRS) a qual dá suporte a diversos estudos que visam compreender a forma como as pessoas constroem o conhecimento matemático. Esta teoria tem relação com a representação, tratamento e conversão de conceitos matemáticos. Dentro da TRRS, o foco deve estar no aprendiz, o que subordina o objeto a ser ensinado à cognição deste, cognição esta que se liga às questões de representação. Como conclusão, entendemos que o material proposto atende às necessidades que destacamos no presente artigo e que ele pode ser um auxiliar no processo de ensino aprendizagem de soma de frações.
LETRAMENTOS SOCIAIS: POSSIBILIDADES DE LEITURA, ESCOLARIZAÇÃO DO LETRAMENTO E CONSTRUÇÃO DE IDENTIDADE
Authors: Cosmo Bueno Igor
Published: July 2020

Este texto começa sua reflexão tratando do início das definições de letramento, a ideia de possibilidades de leituras e o surgimento do termo letramentos, abrangendo as diferentes formas de aprendizado de escrita e leitura. Foi feita uma análise daquilo que propõem os documentos curriculares brasileiros e como esses documentos se afastam da realidade social de muitas escolas. A partir disso, faz-se necessário observar como esta escolarização do letramento e a marginalização daquilo que o discente carrega de aprendizado de mundo, a falta de investimentos na educação a partir do governo e a forma como muitos documentos que regem as escolas se afastam dos contextos vividos por todo o grupo escolar, prejudicam na construção ou descoberta da identidade dos alunos, que saem da sua formação sem se reconhecerem como sujeitos ativos na sociedade em que estão inseridos e aprendido apenas mecanicamente aquilo que foi ofertado pela escola.
HISTORIOGRAFIA DA CIÊNCIA E LINGUAGEM INFOGRÁFICA: PONTUAÇÕES À FORMAÇÃO DE PROFESSORES DE CIÊNCIAS
Authors: Silva Taís de Souza , Costa Lucas Mota , Palcha Leandro Siqueira
Published: July 2020

O artigo discute o desenvolvimento de um infográfico como estratégia pedagógica para abordar a historiografia da ciência no Ensino de Ciências. Fundamenta-se em autores que discutem a importância dahistoriografia na formação de professores e da relação de tecnologias digitais para o processo de aprendizagem da ciência. O objetivo principal é realizar pontuações sobre a historiografia da ciência elinguagem infográfica para a formação de professores de Ciências. Em termos metodológicos, a pesquisa foi realizada na disciplina de “História, Filosofia e Ensino das Ciências”, do curso de Licenciatura em Ciências Exatas. O infográfico analisado aqui tem enfoque na Mecânica Newtoniana e Mecânica Relativista e foi construído por meio do auxílio de aplicativos voltados para o contexto educativo. Pontua-se que a infografiafavorece a autoria dos professores em formação a criar materiais didáticos, bem como permite ao aluno ser protagonista da aprendizagem ajudando-lhe na compreensão da história da ciência.
Permohonan Pernyataan Pailit Terhadap Perusahaan Modal Ventura Yang Tidak Memiliki Izin
Authors: Ambar K Hendri Sita , Belladina Bianca
Published: July 2020

One of many cases in point of controversial bankruptcy was the case of bankruptcy statement and debt rescheduling of PT Brent Ventura (BV). Overall, nine applications submitted against this company have been rejected by the judges of the commercial court, it made certain assumptions that PT BV was immune from the debt rescheduling process and bankruptcy as in Decision of Commercial Court Number 50/Pdt.Sus.Pailit/2014/PN.Niaga.Jkt. Pst. The inaccuracy of the consideration of the decision became the core analysis in this normative research using case studies and conceptual approach. To summarize, the analysis result of Decision of Commercial Court Number 50/Pdt. Sus. Pailit/2014/PN.Niaga.Jkt.Pst that there were some inaccuracies in the legal considerations of the court decision. The judges considered that PT BV was a venture capital company under the supervision of the Otoritas Jasa Keuangan (OJK) and the bankruptcy petition could only be ﬁ led by the OJK. In conclusion, the consideration of the judges was inaccurate due to such restrictions only applied to debtors whose business activities related to public interest, which was MTN publishing was not included in the scope of activities. Hence, petition of bankruptcy statement to PT BV could be ﬁled by individual or legal entities other than OJK.
Reanálisis de las muestras bioarqueológicas provenientes de los sitios Palo Blanco y Los Talas (partido de Berisso, provincia de Buenos Aires)
Authors: Del Papa Mariano C. , Scabuzzo Clara , Ramos van Raap María Agustina , Atencio Juan P. , Bollini Gabriel , Bonilla Delfina
Published: July 2020

En los últimos años se incrementó el uso de colecciones bioarqueológicas institucionalizadas como fuente de información dentro de las investigaciones arqueológicas. En este trabajo se presentan los resultados obtenidos del reanálisis de las muestras osteológicas de los sitios Palo Blanco y Los Talas (Berisso, Buenos Aires), depositadas en la División Antropología del Museo de La Plata. Estos sitios fueron excavados por E. Cigliano y M. Vignati a mediados de siglo XX y, producto de sus trabajos, se detectaron entierros humanos, algunos junto con ajuar funerario y otros materiales arqueológicos. El reanálisis consistió principalmenteen realizar los primeros fechados radiocarbónicos sobre los esqueletos humanos de ambos sitios, conocer la conformación de ambas colecciones, llevar a cabo el relevamiento de patologías y discutir las modalidades de entierro. Las dataciones localizan los episodios de inhumación de ambos sitios en el Holoceno tardío final. Para Palo Blanco se analizaron los dos entierros primarios, y para Los Talas, los restos esqueletales de, al menos, 15 individuos. Las patologías relevadas corresponden a traumatismos, cambios en las zonas de inserción muscular y lesiones de estrés metabólico-nutricional. Finalmente, con este trabajo se aportan datos sobre cronología, prácticas mortuorias y patologías para un área con escasos antecedentes bioarqueológicos.
Examining Efficiency Differentials by Council Type in South Australian Local Government: An Environmentally Adjusted Meta-Frontier Data Envelopment Approach
Authors: Tran Carolyn-Dung Thi Thanh , Dollery Brian
Published: July 2020

The empirical analysis of local government performance has spawned a voluminous international research effort. While some of this literature has focused on the impact of non-discretionary factors on municipal performance, to date the efficiency differentials between discrete types of local authority contingent on non-discretionary factors has yet to be investigated. In an endeavour to address this gap in the literature, as well as some of the shortcomings of extant studies on the impact of non-discretionary environmental factors on municipal performance, in this paper we investigate the meta-frontier technological efficiency gap between four categories of local councils in South Australian (SA) local government by placing them all in a common framework using a data envelopment analysis approach. The effects of the non-discretionary factors on the individual efficiency of each council group are filtered out to obtain robust meta-frontier technological gap ratios and thereby evaluate the managerial (in)efficiency of SA municipal sub-categories.
Fiscal Sustainability and Municipal Amalgamations in Japan
Authors: Miyazaki Masato
Published: July 2020

In Japan, the so-called “Great Heisei Amalgamations” were executed over the period from 1999 to 2010. During this time the number of municipalities decreased from 3,232 to 1,727. Some of the extant literature suggests that the reduction of local allocation tax (LAT) grants to smaller municipalities had provided a strong incentive for the voluntary amalgamations. In this study, through empirical analysis of a seven-year panel of rich financial data, the factors salient to these voluntary municipal amalgamations are considered from the perspective of participating local governments. The results demonstrate that fiscal unsustainability, which was largely caused by central government policies, was the main motivation for municipalities with low financial capabilities to amalgamate.
Cardiovascular Biofluid Mechanics
Authors: Rajesh Parvati
Published: July 2020

This paper intends to study a real-life application of fluid mechanics in cardiovascular blood flow. The study of blood flow is termed as Hemodynamics. Fluid mechanics can be used to analyze the factors and impact of obstruction in blood flow due to fat, cholesterol, and plaque deposits in the coronary arteries of the human heart. These blockages are the grounds for coronary artery diseases and heart attacks. We will look at varying parameters of flowrate and pressure for different thicknesses of epicardial fat as well as define a relationship between these three.
The Linear Equation for 2D Graphs
Authors: Dey Rumani
Published: July 2020

What is y=mx+c? What is one dimensional? If a thing like fish/bird while in motion in water/air cannot turn left, right and backward. It can only move forward in a medium or fly in air. When I try to determine its motion, I see it as one dimensional. It is not necessary that the bird/fish is moving in a straight line. It is the sheer concentration of the medium the fish /bird is traversing in. So, the behavior of a one dimensional motion maybe a function of the medium with a concentration/penetration quotient of the medium based on the weight of the fish/bird which penetrates the medium and the effect of gravity on it. We can depict a one dimensional motion as, One Dimensional motion=f(weight)* f(penetration quotient)*f(Force exerted by the fish/bird while it is penetrating the medium) What is one dimensional coordinate? We can say that it is a vector (V) which moves in any direction but not necessarily a straight line . If “x” is a one dimensional coordinate value, it is very difficult to find the value of “x” . If suppose the path traversed by “x ” is not a definite symmetrical pattern but an ambiguous pattern like below: Fig 1 Then we do not have a numerical value for “x”. It is not measurable through a scale. We cannot find the value of “x”. In this case the only way “x” can be measured is through a straight line if “x” is moving in one direction only. A question arises whether time is moving in a circular pattern or in a straight line .We measure it as a distance/displacement and we have deemed such a scale of measurement as one dimensional. But I want to measure the quantity the fish/bird had travelled in one minute. We might get some value by defining the area it had traversed in one minute which is a two dimensional quantity.
A Review Article on Various Phytochemicals and Different Medicinal Activities of Haritaki.
Authors: Franklin M. , Perumal P. , Vasan P. Keerthi
Published: July 2020

Heat treatment process is a resultant process to improve the mechanical and metallurgical properties of the material. Deep cryogenic treatment is not an alternative process to the heat treatment process it is a complimentary process to the heat treatment and it affects the entire cross section of the material. Deep cryogenic treatment is a heat treatment process where the material is subjected to comparatively extreme low temperature condition in order to enhance the mechanical and metallurgical behaviors of the material. Low alloyed case hardening steels used for manufacturing of parts which required to withstand high operating condition such as axle drives, gears & shafts. In this proposed work 20MnCr5 steel has been subjected to Deep Cryogenic Treatment at different soaking temperature and period. A comparative characterization study has to be conducted, before and after the cryogenic treatment, to investigate the behavior of materials.
Nature of Energy Interactions
Authors: de Souza Cynelle Olívia
Published: July 2020

Electromagnetic waves have an electric and magnetic field. There is an intimate relationship between these two fields and in this present work we adopt the theory that subatomic particles, here being considered neutrinos, can carry the thermal energy calculated through intrinsic kinetic energy. The field of neutrinos determined here may be responsible for the formation of the second harmonic, recently discovered, in which highly energetic electromagnetic waves, in the order of terahertz, excite superconducting electrons. Theories related to the electron and the electric and magnetic fields were also addressed, as their nature is fundamental to the understanding of electromagnetic waves, the interaction between them and the broad effects on nature.
A Census of Star Formation in the Outer Galaxy. II. The GLIMPSE360 Field
Authors: Winston Elaine , Hora Joseph L. , Tolls Volker
Published: July 2020

We have conducted a study of star formation in the outer Galaxy from 65°< l < 265° in the region observed by the GLIMPSE360 program. This Spitzer warm mission program mapped the plane of the outer Milky Way with IRAC at 3.6 and 4.5 μm. We combine the IRAC, Wide-field Infrared Survey Explorer (WISE), and Two Micron All Sky Survey catalogs and our previous results from another outer Galaxy survey and identify a total of 47,338 young stellar objects (YSOs) across the field spanning >180° in Galactic longitude. Using the DBSCAN method on the combined catalog, we identify 618 clusters or aggregations of YSOs having five or more members. We identify 10,476 class I, 29,604 class II, and 7325 anemic class II/class III YSOs. The ratio of YSOs identified as members of clusters was 25,528/47,338, or 54%. We found that 100 of the clusters identified have previously measured distances in the WISE H ii survey. We used these distances in our spectral energy distribution (SED) fitting of the YSOs in these clusters, of which 96 had YSOs with <3σ fits. We used the derived masses from the SED model fits to estimate the initial mass function (IMF) in the inner and outer Galaxy clusters; dividing the clusters by galactocentric distances, the slopes were Γ = 1.87 ± 0.31 above 3 M
⊙ for R
Gal < 11.5 kpc and Γ = 1.15 ± 0.24 above 3 M
⊙ for R
Gal > 11.5 kpc. The slope of the combined IMF was found to be Γ = 1.92 ± 0.42 above 3 M
⊙. These values are consistent with each other within the uncertainties and with literature values in the inner Galaxy high-mass star formation regions. The slopes are likely also consistent with a universal Salpeter IMF.
Sensitivity of 44Ti and 56Ni Production in Core-collapse Supernova Shock-driven Nucleosynthesis to Nuclear Reaction Rate Variations
Authors: Subedi Shiv K. , Meisel Zach , Merz Grant
Published: July 2020

Recent observational advances have enabled high resolution mapping of 44Ti in core-collapse supernova (CCSN) remnants. Comparisons between observations and models provide stringent constraints on the CCSN mechanism. However, past work has identified several uncertain nuclear reaction rates that influence 44Ti and 56Ni production in postprocessing model calculations. We evolved one-dimensional models of 15 M
⊙, 18 M
⊙, 22 M
⊙, and 25 M
⊙ stars from zero age main sequence through CCSN using Modules for Experiments in Stellar Astrophysics and investigated the previously identified reaction rate sensitivities of 44Ti and 56Ni production. We tested the robustness of our results by making various assumptions about the CCSN explosion energy and mass cut. We found a number of reactions that have a significant impact on the nucleosynthesis of 44Ti and 56Ni, particularly for lower progenitor masses. Notably, the reaction rates

,

,

,

,

,

,

,

,

,

, and

are influential for a large number of model conditions. Furthermore, we found the list of influential reactions identified by previous postprocessing studies of CCSN shock-driven nucleosynthesis is likely incomplete, motivating future larger-scale sensitivity studies.
Sun–Heliosphere Observation-based Ionization Rates Model
Authors: Sokół Justyna M. , McComas D. J. , Bzowski M. , Tokumaru M.
Published: July 2020

The solar wind (SW) and the extreme ultraviolet (EUV) radiation modulate fluxes of interstellar and heliospheric particles inside the heliosphere both in time and in space. Understanding this modulation is necessary to correctly interpret measurements of particles of interstellar origin inside the heliosphere. We present a revision of heliospheric ionization rates and provide the Sun–Heliosphere Observation-based Ionization Rates model based on the currently available data. We calculate the total ionization rates using revised SW and solar EUV data. We study the in-ecliptic variation of the SW parameters, the latitudinal structure of the SW speed and density, and the reconstruction of the photoionization rates. The revision most affects the SW out of the ecliptic plane during solar maximum and the estimation of the photoionization rates, the latter due to a change of the reference data. The revised polar SW is slower and denser during the solar maximum of solar cycle (SC) 24. The current estimated total ionization rates are higher than the previous ones for H, O, and Ne, and lower for He. The changes for the in-ecliptic total ionization rates are less than 10% for H and He, up to 20% for O, and up to 35% for Ne. Additionally, the changes are not constant in time and vary as a function of time and latitude.
Quantifying the Stellar Halo's Response to the LMC's Infall with Spherical Harmonics
Authors: Cunningham Emily C. , Garavito-Camargo Nicolas , Deason Alis J. , Johnston Kathryn V. , Erkal Denis , Laporte Chervin F. P. , Besla Gurtina , Luger Rodrigo , Sanderson Robyn E.
Published: July 2020

The vast majority of the mass in the Milky Way (MW) is in dark matter (DM); we therefore cannot directly observe the MW mass distribution and have to use tracer populations in order to infer properties of the MW DM halo. However, MW halo tracers do not only feel the gravitational influence of the MW itself. Tracers can also be affected by MW satellites; Garavito-Camargo et al. (2109) demonstrate that the Large Magellanic Cloud (LMC) induces a density wake in the MW DM, resulting in large-scale kinematic patterns in the MW stellar halo. In this work, we use spherical harmonic expansion (SHE) of the velocity fields of simulated stellar halos in an effort to disentangle perturbations on large scales (e.g., due to the LMC itself, as well as the LMC-induced DM wake) and small scales (due to substructure). Using the Garavito-Camargo et al. simulations, we demonstrate how the different terms in the SHE of the stellar velocity field reflect the different wake components and show that these signatures are a strong function of the LMC mass. An exploration of model halos built from accreted dwarfs suggests that stellar debris from massive, recent accretion events can produce much more power in the velocity angular power spectra than the perturbation from the LMC-induced wake. We therefore consider two models for the Sagittarius (Sgr) stream—the most recent, massive accretion event in the MW apart from the LMC—and find that the angular power on large scales is generally dominated by the LMC-induced wake, even when Sgr is included. We conclude that SHE of the MW stellar halo velocity field may therefore be a useful tool in quantifying the response of the MW DM halo to the LMC’s infall.
Evaluation of Body Mass Index of 3–10-year-old Children with Adenotonsillar Hypertrophy, who Referred to Khatamolanbia Hospital during 2017–2018
Authors: Khavidaki Gholam-Ali Dashti , Gharibi Reza
Published: July 2020

BACKGROUND: Adenotonsillar hypertrophy is a common disorder in the children’s population that can lead to growth disorders. Chronic adenotonsillar hypertrophy can cause a break in the normal growth of children, weight loss, and decreased growth hormone secretion.
AIM: The purpose of this study was to evaluate adenotonsillar hypertrophy in the growth rate of children with height, weight, and body mass index (BMI).
METHODS: In this descriptive-analytical cross-sectional study, after examining 312, 3–10-year-old children with adenotonsillar hypertrophy, who met the inclusion criteria, growth scales were evaluated and entered into the patient evaluation form.
RESULTS: There was a significant relationship between BMI, height, weight, and severity of tonsillar hypertrophy at Brodsky’s scale (P <0.001). Our studies showed well that with increasing severity of adenotonsillar hypertrophy disease, the growth indicators are also decreased in children.
CONCLUSION: Adenotonsillar hypertrophy decreases growth indicators in children. There was also a relationship between growth indicators and severity of adenotonsillar hypertrophy in patients.
CD30 Expression in Germinal Center B-cell-like and non-Germinal Center B-cell-like Subtypes of Diffuse Large B-cell Lymphoma
Authors: Julianty Patricia Fransisca , Ham Maria Francisca , Kusmardi Kusmardi , Harahap Agnes Stephanie
Published: July 2020

BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) is the most common and most heterogeneous type of non-Hodgkin lymphoma. With current therapeutic modalities, 30%–40% of DLBCL cases still experience recurrence. The discovery of CD30 expression in DLBCL in several studies has opened up alternative opportunities for new target therapies.
AIM: This cross-sectional study aimed to determine CD30 expression in DLBCL and its difference in expression in germinal center B-cell such as (GCB) and non-GCB subtypes.
METHODS: The sample consisted of 25 GCB and 25 non-GCB cases based on immunohistochemical examination performed at Cipto Mangunkusumo Hospital from 2014 to 2017. CD30 staining was carried out and assessed using tumor cells percentage with positive cutoff values of >0%, >10%, and >20%.
RESULTS: Positive CD30 expression was obtained in 8 (16%), 4 (8%), and 3 (6%), out of 50 DLBCL cases with positive cutoff values of >0%, >10%, and >20%, respectively. We performed Fisher’s exact test to determine CD30 expression in the GCB and non-GCB subtypes and found no significant difference with p > 0.05.
CONCLUSION: Our study found no significant difference between CD30 expression in the GCB and non-GCB subtypes of DLBCL.
Camellia puhoatensis (Sect. Archecamellia – Theaceae), a new species from Vietnam
Authors: Nguyễn Danh-Hùng , Lương Văn-Dũng , Lê Thị-Hương , Trần Quốc-Thành , Đỗ Ngọc-Đài , Lý Ngọc-Sâm
Published: July 2020

A new species of Theaceae, Camellia puhoatensis N.S. Lý, V.D. Luong, T.H. Le, D.H. Nguyen & N.D. Do, sp. nov., is described and illustrated from Nghe An Province, North Central Coastal Region, Vietnam. It is most similar to C. chrysanthoides, C. flavida and C. petelotii within sect. Archecamellia in shape and colouration of leaf, petal, ovary and glabrous stamen, but differs by its young puberulous shoot, mature leaf sparsely puberulous abaxially and leaf base rounded or broadly obtuse, petiole and pedicel puberulous, tepals 12–13, ovary and style pubescent. The comparison between the new species and C. velutina and C. dormoyana is presented. Data on distribution, ecology, phenology, use and provisional conservation assessment of the new species are given along with an illustration and a colour plate.
Cost Analysis of Dual-Mobility Constructs in Revision Total Hip Arthroplasty: A European Payer Perspective
Authors: Abdel Matthew P. , Miller Larry E. , Hull Stephen A. , Coppolecchia Andréa B. , Hanssen Arlen D. , Pagnano Mark W.
Published: July 2020

Dual-mobility constructs have been shown to significantly and substantially decrease dislocations after revision total hip arthroplasty (THA). The authors have previously shown that dual-mobility (DM) constructs are cost-effective given their ability to decrease dislocations and re-revision for dislocation. The goal was to report the costs of DM and large femoral head (LFH) constructs in revision THAs from a European health care payer perspective. A Markov model was constructed to analyze the costs incurred by payers in the United Kingdom, Germany, Italy, and Spain over 3 years in revision THAs with DM or LFH constructs. Model states and probabilities were derived from prospectively collected registry data in 302 patients who underwent revision THA with a DM or 40-mm LFH construct and were then mapped to corresponding procedural reimbursement codes and tariffs for each country. Costs were weighted average national payments for reintervention procedures performed in the 3 years following revision THA. Probabilistic sensitivity analysis examined the effect of combined uncertainty across all model parameters. During a 3-year period following revision THA, reintervention rates were 9% for DM constructs and 19% for LFH constructs (
P
=.01). Comparing DM and LFH constructs, cumulative incremental costs over 3-years' follow-up were £428 vs £1447 in the United Kingdom, euro 451 vs euro 1272 in Germany, euro 540 vs euro 1425 in Italy, and euro 523 vs euro 1562 in Spain, respectively. At mid-term follow-up, DM constructs used in revision THAs were associated with a significantly lower risk of reintervention, which translated to lower health care payer costs compared with LFH constructs among European health care payers. [
Orthopedics
. 2020;43(4):250–255.]
Testing jointly for structural changes in the error variance and coefficients of a linear regression model
Authors: Perron Pierre , Yamamoto Yohei , Zhou Jing
Published: July 2020

We provide a comprehensive treatment for the problem of testing jointly for structural changes in both the regression coefficients and the variance of the errors in a single equation system involving stationary regressors. Our framework is quite general in that we allow for general mixing‐type regressors and the assumptions on the errors are quite mild. Their distribution can be nonnormal and conditional heteroskedasticity is permitted. Extensions to the case with serially correlated errors are also treated. We provide the required tools to address the following testing problems, among others: (a) testing for given numbers of changes in regression coefficients and variance of the errors; (b) testing for some unknown number of changes within some prespecified maximum; (c) testing for changes in variance (regression coefficients) allowing for a given number of changes in the regression coefficients (variance); (d) a sequential procedure to estimate the number of changes present. These testing problems are important for practical applications as witnessed by interests in macroeconomics and finance where documenting structural changes in the variability of shocks to simple autoregressions or vector autoregressive models have been a concern.
User interfaces for information systems
Authors: Belkin N. J. , Marchetti P. G. , Albrecht M. A. , Fusco L. , Skogvold S. , Stokke H. , Troina G.
Published: July 2020

Se describen cuatro proyectos de interfaces de sistemas de información que se están desarrollando en ESRIN (establecimiento de la Agencia Espacial Europea, en Frascati). Cada uno de ellos muestra un enfoque diferente del diseño de interfaces, pero todos tienen en común el responder a los objetivos, tareas y características de los usuarios. Se sugiere que la próxima generación de sistemas de información científica se tendrá que diseñar para permitir el acceso directo de los usuarios finales a una gran variedad de fuentes de información a través de una interfaz común. El diseño de tales sistemas y de sus interfaces debería basarse en un análisis multinivel de objetivos, tareas y puntos de vista propios de la materia de trabajo de cada usuario.
Desarrollo de un banco de datos sobre características de los alimentos españoles
Authors: Fernández Muñoz María Teresa , Galbán Ferrús Carmen , Méndez Aida , Moreno Luz , Ribas Magdalena
Published: July 2020

Se describe el banco de datos sobre componentes de alimentos españoles: productos lácteos y vinos. Se ha desarrollado, en fase experimental, en el Instituto de Información y Documentación en Ciencia y Tecnología {ICYT), en colaboración con el Instituto de Fermentaciones Industriales, pertenecientes al CSIC. Además de información factual sobre componentes de alimentos, proporciona información adicional de tipo bibliográfico como: trabajos, autores, instituciones, métodos de análisis, etc., siempre en relación con los alimentos o sus componentes. La aplicación informática, desarrollada en DBIII, permite, mediante menús, la actualización, modificación y consulta de la información contenida en el banco de datos. Se comenta la normalización, organización y recuperación de la información.
Proyectos EDI y normalización documental
Authors: Hípola Pedro , De Moya Félix
Published: July 2020

Los sistemas EDI (Electronic Data lnterchange) están concebidos principalmente para ser utilizados dentro del mundo de las transacciones comerciales. Ahora bien, por sus características técnicas y circunstancias estratégicas, provocan también el interés de los profesionales de la Información y Documentación. En este artículo se describen las principales características de los sistemas EDI: sus prestaciones, las infraestructuras tecnológicas que utilizan y también sus condicionantes. Se analiza cuál es la implantación de EDI en el mercado europeo. Se examinan las características de las normas EDIFACT (Electronic Data lnterchange for Administration, Commerce and Transport), ODA/ODIF (Office Document Architecture/Office Document lnterchange Formal) y FORMEX (FORMalized Exchange of electronic publications), así como los problemas que plantean estos formatos en relación con las técnicas de normalización documental. Se pasa revista a algunos de los principales proyectos europeos en curso, dentro del campo bibliotecario y documental, que tienen cierta relación con el Intercambio Electrónico de Datos.
La producción de la Universidad española en Física, reflejada en las publicaciones españolas y extranjeras
Authors: Pérez Alvarez-Ossorio J. R. , Gómez Caridad M. L. , Martín Sempere M. J. , Galbán Ferrús C. , Urdin Caminos M. C. , Sobrado Presa A. L.
Published: July 2020

Se analiza la producción científica de la Universidad española en el campo de la Física, y en el período 1986-88, a través de dos bases de datos: INSPEC, que recoge lo publicado en revistas extranjeras y también, aunque de modo selectivo, en cierto número de revistas españolas; e ICYT, que recoge exhaustivamente todos los trabajos originales publicados en revistas españolas. La comparación entre ambas series de datos permite deducir tendencias de publícación en el extranjero. Asimismo se analizan comparativamente los periodos 1982-85 y 1986-88, con los datos obtenidos de INSPEC.
La quête de l’identité dans la littérature algérienne d’expression française
Authors: Kharchi Lakhdar
Published: July 2020

La littérature algérienne d’expression française est un espace où se pose avec acuité la question de l’Identité. Elle exprime la haine et la douleur d’un peuple meurtri par une colonisation implacable des plus meurtrières. Elle s’engage foncièrement dans le mouvement de lutte pour la liberté. Ainsi, les écrivains en tant que « consciences » de la société, ne sont pas restés indifférents et se sont mis à penser, voire à redéfinir l’appartenance identitaire et culturelle. De ce fait, toute une production littéraire a vu le jour, dans laquelle on pourrait relever des questionnements sur l’identité, et partant sur le devenir de l’algérien. Historiens de leur temps, les écrivains s’assignent alors, pour mission de réveiller les consciences encore velléitaires de leurs compatriotes. Conscients du rôle que peut jouer la littérature dans le mouvement national, ils sont les premiers à afficher manifestement leur refus et se mobilisent ainsi contre la répression coloniale.
« Je » humain et « Je » divin, l’identité chez les mystiques musulmans
Authors: El Amraoui Randa
Published: July 2020

Être, c’est exister, se différencier de l’Autre, se chercher afin de se trouver. A vrai dire, la finalité du cheminement spirituel en Islam est la connaissance de soi et l’aboutissement à un état de perfection et d’universalité (kamâl). La question de l’identité est, alors, au centre de la quête du soufi. Les mystiques du Moyen-Orient comme Abû Yazîdal-Bistâmî (mort en 874) et Huseyn ibn Mansour al-Hallâj (mort en 922) illustraient un pluralisme culturel et un climat d’ouverture durant les premiers siècles de l’hégire. Leur doctrine est l’annihilation ou l’extinction et l’effacement du serviteur à lui-même et au monde manifesté dans son ensemble. Ayant perdu la vision de leur individualité propre, les soufis deviennent alors absents (ghayba) au monde et présents en Dieu (hudûr).
Genre et genres : le VIH par ses récits
Authors: Lhote Florence
Published: July 2020

L’article « Genre et genres : le VIH par ses récits » s’intéresse, au travers des récits du VIH/Sida portés par des femmes, à la naturalisation des différentes formes de différenciation entre les sexes. Il interroge le fondement de l’invisibilité des auteures sur cette thématique et montre comment la représentation de la sexualité dans ces fictions prend en charge ou s’émancipe du dispositif de « l’aveu » et de la confession. Il dévoile comment la « contamination fragmentaire » met au jour un « événement-Sida » dont l’historicisation débute. Cet « événement-Sida » contribue à la mise en crise du « bio-pouvoir ».
Rushes sur le cinéma italien. L’ultimo minuto di Ugo Tognazzi
Authors: Ringozzi Mattia
Published: July 2020

Dans la deuxième moitié des années 1980, Ugo Tognazzi joue dans Ultimo minuto, un film dirigé par Pupi Avati. Dans cette œuvre peu connue, constituant l’une des dernières interprétations du grand comédien italien, Tognazzi accomplit une composition magistrale, s’identifiant totalement au personnage principal. Sans prétention à l’exhaustivité, cette contribution a pour but d’avancer quelques considérations sur ce long-métrage, en s’appuyant particulièrement sur l’interprétation de Tognazzi.
Faire bonne expression : prise de parole et formation de la pensée en philosophie pour enfants
Authors: Nepton Samuel
Published: July 2020

Cet article vise à présenter les conditions que doit faire respecter l’enseignant lors d’un atelier de philosophie pour enfants afin que la prise de parole des participants œuvre à la formation de leur pensée. En effet, cette approche éducative qui, depuis les dernières années, voit sa popularité s’étendre par le monde, opère un renversement face aux pédagogies traditionnelles en éducation en plaçant l’enfant au centre même de la classe. Cette révolution s’explique par la reconnaissance d’un lien intime et nécessaire entre la parole, la discussion et la pensée. Il sera ainsi explicité comment la réflexion est intrinsèquement liée à l’expression et comment, en contrepartie, cette expression implique un double risque pour les enfants. Par conséquent, il sera expliqué comment une éducation qui viserait la formation de la pensée devrait s’assurer de fournir aux enfants un espace dans lequel ils pourront oser s’exprimer. Il sera présenté toutefois comment la prise de parole en elle-même n’est pas suffisante à la formation de la pensée. Par conséquent, plutôt de seulement laisser les enfants s’exprimer, le rôle de l’adulte doit être de les mettre au défi de penser en s’assurant que cette prise de parole respecte certaines conditions telles que de prendre la forme d’une enquête et de permettre le développement d’habiletés intellectuelles.
Les interactions langagières en maternelle : moment clé pour la révision des savoirs relatifs à l’écrit
Authors: Richard-Bossez Ariane
Published: July 2020

Cet article interroge la manière dont les interactions langagières se donnent à voir dans les classes d’école maternelle et les possibilités qu’elles ouvrent ou ferment en termes de révision des savoirs de l’écrit. Dans une première partie sont étudiées les conditions qui permettent aux interactions langagières de se réaliser dans les classes. La deuxième partie s’intéresse aux interactions qui se nouent entre élèves hors de la présence de l’enseignant et à leur rôle dans la construction des savoirs. Enfin, la dernière partie s’attache aux échanges qui se déroulent entre enseignants et élèves, que ceux-ci soient duels ou collectifs, en questionnant leurs effets sur les apprentissages. De manière transversale, le propos fait ressortir la double dimension des interactions langagières dans les classes, à la fois porteuses de processus cognitifs et de jugements scolaires sur les élèves. Il amène à formuler plusieurs hypothèses concernant le processus de révision des savoirs qui se joue dans ces interactions, notamment pour les élèves ne recourant pas initialement à un mode d’interprétation littératié des activités et des échanges pédagogiques.
Les réseaux personnels dans les parcours professionnels des animateurs jeunesse
Authors: Virgos Julien
Published: July 2020

Issu d'un travail de thèse en cours, cet article aborde la question de l'influence des réseaux personnels sur les parcours professionnels des animateurs jeunesse en termes d'embauche. Nous y présentons notre articulation des travaux consacrés à la socialisation professionnelle et à l'étude des parcours, avant de préciser en quoi la prise en compte du temps et des réseaux personnels nous paraît primordiale dans le cadre de nos travaux. L'analyse des séquences relatives à l'embauche au sein des parcours individuels de trente-et-un animateurs met en exergue le rôle que peuvent y jouer les réseaux personnels. Le cadre des sciences de l’éducation et de la formation, dans lequel s'inscrivent nos travaux, permet une approche multiréférentielle (Ardoino, 1993) et une appréhension de la complexité des processus de professionnalisation chez les animateurs jeunesse.
Compétences transversales : quelques suggestions pour s’affranchir d’un mythe
Authors: Coulet Jean-Claude
Published: July 2020

À partir des raisons expliquant l'intérêt pour les compétences transversales, nous montrerons que les difficultés rencontrées dans leur utilisation découlent, avant tout, de l’absence de référence à une modélisation théorique des compétences individuelles et collectives. En nous fondant sur les théories de l'activité, nous nous efforcerons donc de présenter les contributions de cette modélisation. Cela sera illustré par quelques exemples d'opérationnalisation de ce cadre théorique dans le domaine de l'éducation et de la formation aussi bien qu'au sein des organisations et des territoires.
Le regard des formés sur les compétences transversales : outils de connaissance et de re-connaissance
Authors: Labbé Sabrina , Marengo Naïma , Gojard Loïc , Bourlot-Ranty Sylvie
Published: July 2020

La notion de compétences transversales est posée comme un enjeu majeur pour la sécurisation des parcours et un nouveau média entre formation et travail. Dès lors, nous pouvons imaginer que ces dernières soient particulièrement valorisées dans les certifications professionnelles. Notre étude s’attache à interroger cette notion auprès de stagiaires d’une formation universitaire construite autour du développement de compétences transversales. Quelles représentations les stagiaires en formation ont-ils des compétences qu’ils ont acquises dans ce type de cursus ? Comment les expriment-ils et les partagent-ils ? Nous observerons la difficulté du cheminement pour exprimer des apprentissages universitaires en compétences. Il s’agira également d’appréhender la fonction identitaire des compétences, qui oscillent entre outil de connaissance et outil de reconnaissance, et la nécessaire prise en compte des contextes d’explicitation des compétences. Enfin émerge une nouvelle caractéristique de ces compétences qui consisterait à ce qu’elles soient transversales à différents champs professionnels, mais étanches entre champ formatif et champ professionnel.
Assessing Knowledge and Factors Associated to Long Lasting Insecticide Nets use among pregnant women in southern Rwanda
Authors: Habimana Amos , Gikunju Joseph , Magu Dennis , Tuyizere Malachie
Published: July 2020

Background

Around 443,000 pregnant women are at risk of malaria each year in Rwanda. LLINs are freely distributed to women at health centers during antenatal care visit and vaccination services.

Methods

A cross-sectional design was used to explore pregnant women’s knowledge and factors associated to LLINs use in five cells of Tumba sector. Data was collected through interviews and questionnaires. The data was analyzed using SPSS 21. Bivariate and multivariate analyses were performed with Chi-square test to assess the association between LLINs ownership and utilization of LLINs.

Results

All respondents had high knowledge and knew that sleeping under LLINs helps to avoid mosquito bites whereas 381 (99.2%) knew that the use of LLIN helps to fight against the burden of malaria. LLIN ownership was 323 (84.1%) while usage was 283 (87.6%) among LLINs owners. LLIN ownership is significantly influenced by the level of education (p=0.001) and utilization (p=0.001). Although LLINs coverage was high, its utilization was low. Sixty-one respondents (15.9 %) do not have LLINs and 84 (22%) of respondents had low knowledge on LLINs.

Conclusion

Regular training on LLINs may increase awareness of pregnant women on the benefits of LLIN utilization.

Keywords: Malaria; Households; Long-lasting insecticidal nets; Ownership; Rwanda
Winners and loser of trade liberalization: frictions, rigidities and reforms
Authors: Guido Porto
Published: July 2020

Trade liberalization brings economic gains to the economy due to efficiency improvements and lower prices. The gains, however, may not be for everybody: export sectors win and import sectors lose. This creates a distributional conflict. The gains and losses from trade, and the attendant conflict, evolve as the economy adjusts. This depends on capital and labor market rigidities. There is room for policies to help realize and enhance the gains from trade and to mitigate the losses.
Dampak negatif belum terlaksananya pelimpahan aset oleh daerah induk kepada daerah otonom baru
Authors: Lelan Sirilus Novertus
Published: July 2020

Abstract

This research was conducted to find out the impact caused by not yet being fully transferred assets, especially immovable assets, land and buildings to the new autonomous region namely the City of Kupang. This research is a qualitative descriptive study, which focuses on the study of documents, interviews and observations. The findings from the documents, interviews and observations made, inform that based on the legislation, assets in the area of expansion should be submitted. In fact these immovable assets are still owned and have not been fully transferred to the new autonomous region. The impact of this is that Kupang City development planning is constrained by a number of assets that are still owned by the parent area, chaotic city planning, population administration for residents in border areas that are still gray.

Keywords: Regional Autonomy, Delegation and Asset
Source identification of atmospheric organic vapors in two European pine forests: Results from Vocus PTR-TOF observations
Authors: Li Haiyan , Canagaratna Manjula R. , Riva Matthieu , Rantala Pekka , Zhang Yanjun , Thomas Steven , Heikkinen Liine , Flaud Pierre-Marie , Villenave Eric , Perraudin Emilie , Worsnop Douglas , Kulmala Markku , Ehn Mikael , Bianchi Federico
Published: July 2020

Abstract. Atmospheric organic vapors play essential roles in the formation of secondary organic aerosol. Source identification of these vapors is thus fundamental to understand their emission sources and chemical evolution in the atmosphere and their further impact on air quality and climate change. In this study, a Vocus proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF) was deployed in two forested environments, the Landes forest in southern France and the boreal forest in southern Finland, to measure atmospheric organic vapors, including both volatile organic compounds (VOCs) and their oxidation products. For the first time, we performed binned positive matrix factorization (binPMF) analysis on the complex mass spectra acquired with the Vocus PTR-TOF and identified various emission sources as well as oxidation processes in the atmosphere. Based on separate analysis of low- and high-mass ranges, fifteen PMF factors in the Landes forest and nine PMF factors in the Finnish boreal forest were resolved, showing a high similarity between the two sites. Factors representing monoterpenes dominate the biogenic VOCs in both forests, with less contributions from the isoprene factors and sesquiterpene factors. Particularly, various terpene reaction products were separated into individual PMF factors with varying oxidation degrees, such as lightly oxidized compounds from both monoterpene and sesquiterpene oxidations, monoterpene-derived organic nitrates, and monoterpene more oxidized compounds. These factors display similar mass profiles and diurnal variations between the two sites, revealing similar terpene reaction pathways in these forests. With the distinct characteristics of VOCs and oxygenated VOCs measured by the Vocus PTR-TOF, this study identified various primary emission sources and secondary oxidation processes of atmospheric organic vapors in the European pine forests, providing a more comprehensive understanding of gas-phase atmospheric chemistry.
Technical note: Single-shell δ11B analysis of Cibicidoides wuellerstorfi using femtosecond laser ablation MC-ICPMS and secondary ion mass spectrometry
Authors: Raitzsch Markus , Rollion-Bard Claire , Horn Ingo , Steinhoefel Grit , Benthien Albert , Richter Klaus-Uwe , Buisson Matthieu , Louvat Pascale , Bijma Jelle
Published: July 2020

Abstract. The boron isotopic composition (δ11B) of benthic foraminifera provides a valuable tool to reconstruct past deep-water pH. As the abundance of monospecific species might be limited in sediments, microanalytical techniques can help to overcome this problem, but such studies on benthic foraminiferal δ11B are sparse. In addition, microanalytics provide information on the distribution of δ11B at high spatial resolution to increase the knowledge of e.g. biomineralization processes. For this study, we investigated the intra- and inter-shell δ11B variability of the epibenthic species Cibicidoides wuellerstorfi, which is widely used in paleoceanography, by secondary ion mass spectrometry (SIMS) and femtosecond laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICPMS). While the average δ11B values obtained from these different techniques agree remarkably well with bulk solution values to within ± 0.1 ‰, a relatively large intra-shell variability was observed. Based on multiple measurements within single shells, the SIMS and LA data suggest median variations of 4.8 ‰ and 1.3 ‰ (2σ), respectively, where the larger spread for SIMS is attributed to the smaller volume of calcite being analyzed in each run. When analytical uncertainties and volume-dependent differences in δ11B variations are taken into account for these methods, the intra-shell variability is presumably in the order of ~ 3 ‰ and ~ 0.4 ‰ (2σ) on a ~ 20 µm and 100 µm scale, respectively. In comparison, the δ11B variability between shells exhibits a total range of ~ 3 ‰ for both techniques, suggesting that several shells need to be analyzed for accurate mean δ11B values. Based on a simple resampling method, we conclude that ~ 7 shells of C. wuellerstorfi must be analyzed using LA-MC-ICPMS to obtain an accurate average value within ± 0.5 ‰ (2σ) to resolve pH variations of ~ 0.1. Based on our findings, we suggest to prefer the conventional bulk solution MC-ICPMS over the in-situ methods for e.g. paleo-pH studies. However, SIMS and LA provide powerful tools for high-resolution paleoreconstructions, or for investigating ontogenetic trends in δ11B, possibly due to vital effects during chamber formation.