bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pembelajaran Fisika Berbantuan Bahan Ajar Berbasis Kontekstual dengan Mengintegrasi Kearifan Lokal Untuk Meningkatkan Penguasaan Konsep Fisika
Authors: Satriawan Muhammad , Subhan Muhammad , Fatimah Fatimah 
Published: November 2017

This research is a quasi experimental research that aims to determine the differences and the improvement of mastery of physics concepts in the classroom using contextual teaching materials that integrated local wisdom with classes using conventional teaching materials. The research design used was pretest posttest control group design. Both the experimental and control classes are given equal treatment, but the experimental class uses contextual teaching materials that integrate local wisdom while the control class uses conventional teaching materials. The number of students in the experimental class is 25 students while the control class is 30 Students. The data analysis used parametric statistics with a two tailed t test to determine the difference and the N-gain test to find out the improvement of student conceptualization. The two tailed t test used SPSS 20 software assistance in the data analysis process. Based on result of data analysis that obtained Sig value. (2-tailed) by 0.000 <0.01 (α = 1%). This shows that there is a very significant difference between physics learning through problem solving method using contextual teaching materials with physics learning through problem solving using conventional teaching materials. In addition, based on the N-gain calculation the average value of N-gain for the experimental class is 0.87 with the high category whereas the average value of N-gain for the control class is 0.65. This shows that the experimental class where the physics learning using materials Contextual teaching has increased the mastery of the concept higher than the control class that uses conventional teaching materials.
Process Induced Defects in Liquid Molding Processes of Composites
Authors: Hamidi Y. K. , Altan M. C. 
Published: November 2017

AbstractLiquid Composite Molding (LCM) processes are cost efficient manufacturing alternatives to traditional autoclave technology for producing near-net shape structural composite parts. However, process induced defects often limit wider usage of LCM in structural applications. Thorough knowledge of these defects, as well as their formation mechanisms and prevention techniques, is essential in developing improved LCM processes. In this article, process induced defects in liquid molding processes of composites, categorized into preform, flow induced and cure induced defects, are reviewed. Preform defects are further presented as fiber misalignment and fiber undulation (waviness and wrinkling). The respective causes, detrimental effects, and possible prevention methods of these defects are presented. Thereafter, flow induced defects are classified as voids and dry spots. Dry spot formation mechanisms in LCM processes and available prevention techniques are summarized. In addition, void formation mechanisms, adverse effects on composite properties, and removal techniques are presented. Cure induced defects include microcracks, void growth and geometrical distortions (warpage and spring-in). Each of these defects are discussed along with their underlying causes as well as their control and reduction schemes.
Tailoring Heat-Seal Properties of Biodegradable Polymers through Melt Blending
Authors: Tabasi R. Y. , Ajji A. 
Published: November 2017

Abstract
In this study, we address heat-seal properties of poly (lactic acid) (PLA), blended with Poly (butylene adipate-co-terephthalate) (PBAT). The objective is to correlate blends crystalline structure and morphology to corresponding heat-seal of blends films. The SEM micrographs show a two-phase elongated morphology where stretched ellipsoids developed through elongational flow during the cast film process. To distinguish the effect of crystallization, we also prepared amorphous and crystalline PBAT films and then compared them to blends with PLA. Heat-sealed areas were created by putting film surfaces in intimate contact for 1 s at the pressure of 0.5 N/mm2 or Pa and in the temperature range of 70 to 140 °C. Thermal analysis shows that the crystalline structure of PBAT has a significant effect on shifting its heat-seal initiation temperature (Tsi) up to 20 °C. Regarding the blends, incorporation of PBAT as a dispersed phase lowers Tsi of blend samples. Here, gradual decrease in PBAT crystallinity caused by the hindering effect of PLA rigid molecules correlates with the shift in heat-seal initiation temperature. As mentioned above, elongated disperse morphology with higher aspect ratio of the dispersed phase compared to spherical dispersed domain, is formed through film cast process. This enhances the adhesion process by providing higher contact area. The blends also show higher toughness and better puncture resistance, which is an asset for flexible packaging applications and would enhance the mechanical performance of the seal layer.
Early-Onset Myopathies: Clinical Findings, Prevalence of Subgroups and Diagnostic Approach in a Single Neuromuscular Referral Center in Germany
Authors: Vill K. , Blaschek A. , Gläser D. , Kuhn M. , Haack T. , Alhaddad B. , Wagner M. , Kovacs-Nagy R. , Tacke M. , Gerstl L. , Schroeder A.S. , Borggraefe I. , Mueller C. , Schlotter-Weigel B. , Schoser B. , Walter M.C. , Müller-Felber W. 
Published: November 2017

Background: Early-onset myopathies are a heterogeneous group of neuromuscular diseases with broad clinical, genetic and histopathological overlap. The diagnostic approach has considerably changed since high throughput genetic methods (next generation sequencing, NGS) became available. Objective: We present diagnostic subgroups in a single neuromuscular referral center and describe an algorithm for the diagnostic work-up. Methods: The diagnostic approach of 98 index patients was retrospectively analysed. In 56 cases targeted sequencing of a known gene was performed, in 44 patients NGS was performed using large muscle specific panels, and in 12 individuals whole exome sequencing (WES) was undertaken. One patient was diagnosed via array CGH. Clinical features of all patients are provided. Results: The final diagnosis could be found in 63 out of 98 patients (64%) with molecular genetic analysis. In 55% targeted gene sequencing could establish the genetic diagnosis. However, this rate largely depended on the presence of distinct histological or clinical features. NGS (large myopathy-related panels and WES) revealed genetic diagnosis in 58.5% (52% and 67%, respectively). The genes detected by WES in our cohort of patients were all covered by the panels. Based on our findings we propose an algorithm for a practical diagnostic approach. Prevalences: MTM1- and LAMA2-patients are the two biggest subgroups, followed by SEPN1-, RYR1- and Collagen VI-related diseases. 31% of genetically confirmed cases represents a group with overlap between “congenital myopathies (CM)” and “congenital muscular dystrophies (CMD)”. In 36% of the patients a specific genetic diagnosis could not be assigned. Conclusions: A final diagnosis can be confirmed by high throughput genetic analysis in 58.5% of the cases, which is a higher rate than reported in the literature for muscle biopsy and should in many cases be considered as a first diagnostic tool. NGS cannot replace neuromuscular expertise and a close discussion with the geneticists on NGS is mandatory. Targeted candidate gene sequencing still plays a role in selected cases with highly suspicious clinical or histological features. There is a relevant clinical and genetic overlap between the entities CM and CMD.
Point-of-care lactate testing for sepsis at presentation to health care: a systematic review of patient outcomes
Authors: Morris Elizabeth , McCartney David , Lasserson Daniel , Van den Bruel Ann , Fisher Rebecca , Hayward Gail 
Published: November 2017

BackgroundLactate is measured in hospital settings to identify patients with sepsis and severe infections, and to guide initiation of early treatment. Point-of-care technology could facilitate measurement of lactate by clinicians in the community. However, there has been little research into its utility in these environments.AimTo investigate the effect of using point-of-care lactate at presentation to health care on mortality and other clinical outcomes, in patients presenting with acute infections.Design and settingStudies comparing the use of point-of-care lactate to usual care in initial patient assessment at presentation to health care were identified using a maximally sensitive search strategy of six electronic databases.MethodTwo independent authors screened 3063 records for eligibility, and extracted data from eligible studies. Quality assessment for observational studies was performed using the ROBINS-I tool.ResultsEight studies were eligible for inclusion (3063 patients). Seven studies were recruited from emergency departments, and one from a pre-hospital aeromedical setting. Five studies demonstrated a trend towards reduced mortality with point-of-care lactate; three studies achieved statistical significance. One study demonstrated a significant reduction in length of hospital stay, although another did not find any significant difference. Two studies demonstrated a significant reduction in time to treatment for antibiotics and intravenous fluids.ConclusionThis review identifies an evidence gap — there is no high-quality evidence to support the use of point-of-care lactate in community settings. There are no randomised controlled trials (RCTs) and no studies in primary care. RCT evidence from community settings is needed to evaluate this potentially beneficial diagnostic technology.
Space Telescope Designed for Accurate Measurements
Authors: Terebizh V. Yu. 
Published: November 2017

Abstract
A modified version of the folded aplanatic Gregory telescope equipped with a spherical two-lens corrector is proposed for observations requiring a high signal-to-noise ratio. The basic telescope model has an aperture of 400 mm (f/3.0), its field of view is 3.°0, the linear obscuration is 0.12, and the distortion is less than 0.5%. The focal surface has a spherical shape, and achieving a plane field requires an increase in the number of lenses in the corrector. The images of stars in the integrated wavelength range 0.35–1.0 μm are close to the diffraction-limited ones (D
80 = 5.9–8.2 μm = 1.″0–1.″4). The system is free from direct background illumination, and both the lens corrector and the light detector are protected from cosmic particles.
MARXS: A Modular Software to Ray-trace X-Ray Instrumentation
Authors: Günther Hans Moritz , Frost Jason , Theriault-Shay Adam 
Published: November 2017

Abstract
To obtain the best possible scientific result, astronomers must understand the properties of the available instrumentation well. This is important both when designing new instruments and when using existing instruments close to the limits of their specified capabilities or beyond. Ray-tracing is a technique for numerical simulations where the path of many light rays is followed through the system to understand how individual system components influence the observed properties, such as the shape of the point-spread-function. In instrument design, such simulations can be used to optimize the performance. For observations with existing instruments, this helps to discern instrumental artefacts from a true signal. Here, we describe MARXS, a new python package designed to simulate X-ray instruments on satellites and sounding rockets. MARXS uses probability tracking of photons and has polarimetric capabilities.
Type II Supernova Spectral Diversity. I. Observations, Sample Characterization, and Spectral Line Evolution*
Authors: Gutiérrez Claudia P. , Anderson Joseph P. , Hamuy Mario , Morrell Nidia , González-Gaitan Santiago , Stritzinger Maximilian D. , Phillips Mark M. , Galbany Lluis , Folatelli Gastón , Dessart Luc , Contreras Carlos , Valle Massimo Della , Freedman Wendy L. , Hsiao Eric Y. , Krisciunas Kevin , Madore Barry F. , Maza José , Suntzeff Nicholas B. , Prieto Jose Luis , González Luis , Cappellaro Enrico , Navarrete Mauricio , Pizzella Alessandro , Ruiz Maria T. , Smith R. Chris , Turatto Massimo 
Published: November 2017

Abstract
We present 888 visual-wavelength spectra of 122 nearby type II supernovae (SNe II) obtained between 1986 and 2009, and ranging between 3 and 363 days post-explosion. In this first paper, we outline our observations and data reduction techniques, together with a characterization based on the spectral diversity of SNe II. A statistical analysis of the spectral matching technique is discussed as an alternative to nondetection constraints for estimating SN explosion epochs. The time evolution of spectral lines is presented and analyzed in terms of how this differs for SNe of different photometric, spectral, and environmental properties: velocities, pseudo-equivalent widths, decline rates, magnitudes, time durations, and environment metallicity. Our sample displays a large range in ejecta expansion velocities, from ∼9600 to ∼1500 km s−1 at 50 days post-explosion with a median

value of 7300 km s−1. This is most likely explained through differing explosion energies. Significant diversity is also observed in the absolute strength of spectral lines, characterized through their pseudo-equivalent widths. This implies significant diversity in both temperature evolution (linked to progenitor radius) and progenitor metallicity between different SNe II. Around 60% of our sample shows an extra absorption component on the blue side of the

P-Cygni profile (“Cachito” feature) between 7 and 120 days since explosion. Studying the nature of Cachito, we conclude that these features at early times (before ∼35 days) are associated with Si ii

, while past the middle of the plateau phase they are related to high velocity (HV) features of hydrogen lines.
On the Origin of Banded Structure in Dusty Protoplanetary Disks: HL Tau and TW Hya
Authors: Boley A. C. 
Published: November 2017

Abstract
Recent observations of HL Tau revealed remarkably detailed structure within the system’s circumstellar disk. A range of hypotheses have been proposed to explain the morphology, including, e.g., planet–disk interactions, condensation fronts, and secular gravitational instabilities. While embedded planets seem to be able to explain some of the major structure in the disk through interactions with gas and dust, the substructures, such as low-contrast rings and bands, are not so easily reproduced. Here, we show that dynamical interactions between three planets (only two of which are modeled) and an initial population of large planetesimals can potentially explain both the major and minor banded features within the system. In this context, the small grains, which are coupled to the gas and reveal the disk morphology, are produced by the collisional evolution of the newly formed planetesimals, which are ubiquitous in the system and are decoupled from the gas.
Probing the Hot X-Ray Corona around the Massive Spiral Galaxy, NGC 6753, Using Deep XMM-Newton Observations
Authors: Bogdán Ákos , Bourdin Hervé , Forman William R. , Kraft Ralph P. , Vogelsberger Mark , Hernquist Lars , Springel Volker 
Published: November 2017

Abstract
X-ray emitting gaseous coronae around massive galaxies are a basic prediction of galaxy formation models. Although the coronae around spiral galaxies offer a fundamental test of these models, observational constraints on their characteristics are still scarce. While the presence of extended hot coronae has been established around a handful of massive spiral galaxies, the short X-ray observations only allowed for measurements of the basic characteristics of the coronae. In this work, we utilize deep XMM-Newton observations of NGC 6753 to explore its extended X-ray corona in unprecedented detail. Specifically, we establish the isotropic morphology of the hot gas, suggesting that it resides in hydrostatic equilibrium. The temperature profile of the gas shows a decrease with an increasing radius: it drops from

in the innermost parts to

at a 50 kpc radius. The temperature map reveals the complex temperature structure of the gas. We study the metallicity distribution of the gas, which is uniform at

Solar. This value is about an order of magnitude lower than that obtained for elliptical galaxies with similar dark matter halo mass, hinting that the hot gas in spiral galaxies predominantly originates from external gas inflows rather than from internal sources. By extrapolating the density profile of the hot gas out to the virial radius, we estimate the total gas mass and derive the total baryon mass of NGC 6753. We conclude that the baryon mass fraction is

, implying that about half of the baryons are missing.
How to Reconcile the Observed Velocity Function of Galaxies with Theory
Authors: Brooks Alyson M. , Papastergis Emmanouil , Christensen Charlotte R. , Governato Fabio , Stilp Adrienne , Quinn Thomas R. , Wadsley James 
Published: November 2017

Abstract
Within a Λ cold dark matter (ΛCDM) scenario, we use high-resolution cosmological simulations spanning over four orders of magnitude in galaxy mass to understand the deficit of dwarf galaxies in observed velocity functions (VFs). We measure velocities in as similar a way as possible to observations, including generating mock H i data cubes for our simulated galaxies. We demonstrate that this apples-to-apples comparison yields an “observed” VF in agreement with observations, reconciling the large number of low-mass halos expected in a ΛCDM cosmological model with the low number of observed dwarfs at a given velocity. We then explore the source of the discrepancy between observations and theory and conclude that the dearth of observed dwarf galaxies is primarily explained by two effects. The first effect is that galactic rotational velocities derived from the H i linewidth severely underestimate the maximum halo velocity. The second effect is that a large fraction of halos at the lowest masses are too faint to be detected by current galaxy surveys. We find that cored DM density profiles can contribute to the lower observed velocity of galaxies but only for galaxies in which the velocity is measured interior to the size of the core (∼3 kpc).
From the Myth of the Primal Horde to the Test of the Family Romance
Authors: Lepoutre Thomas 
Published: November 2017

On essaye ici de faire valoir les concordances frappantes des deux « récits originaires » auxquels Freud accorde une place centrale, en confrontant ouvertement le « mythe de la horde originaire » au « Roman familial des névrosés », selon le titre de l’article freudien de 1908. Cela revient à interroger l’intertextualité secrète travaillant le mythe freudien de la généalogie culturelle et le roman névrotique de la généalogie individuelle – en posant cette question : dans quelle mesure le mythe nous aide-t-il à lire le roman, et le roman nous aide-t-il à lire le mythe ?
From the Evaluation of Psychotherapies to Research in Psychotherapy and Psychoanalysis
Authors: Thurin Jean-Michel 
Published: November 2017

Douze ans se sont écoulés depuis la publication de l’expertise Inserm : Psychothérapie, trois approches évaluées . Où en sommes-nous ? Au niveau international, les études concernant l’efficacité de l’approche psychanalytique se sont multipliées. Parallèlement, les comparaisons d’approches globales sont sorties des priorités de la recherche en psychothérapie, au profit d’études centrées sur les conditions et les causes intervenant dans les processus de changement. En France, un réseau Inserm de recherches fondées sur les pratiques psychothérapiques s’est constitué. Associant cliniciens et chercheurs, il développe depuis 2008 une méthodologie innovante sur l’action thérapeutique. À partir de l’étude approfondie de cas traités dans des conditions naturelles, ses perspectives sont cliniques, pratiques et théoriques. Une centaine de psychanalystes y participent dans les pôles autisme et borderline, et différentes publications rendent compte des observations réalisées.
Interactividad en las salas de prensa online de los Parlamentos autonómicos españoles: luces y sombras
Authors: Vázquez Sande Pablo , Pineda-Martínez Paula , Fernández Lombao Tania 
Published: November 2017

El propósito de este estudio es comprobar cómo los parlamentos españoles incorporan características interactivas en sus salas de prensa online como forma de comunicación, no solo con los medios de comunicación sino también con la ciudadanía. Metodología. Se lleva a cabo un análisis de contenido para medir la accesibilidad de las salas de prensa online, los contenidos informativos que se incluyen en ellas, y las posibilidades interactivas que ofrecen. Resultados y conclusiones. Los resultados muestran un nivel excelente en cuanto a estándares de accesibilidad, una incorporación divergente en lo relativo a canales y herramientas (divulgación de ruedas de prensa, retransmisiones en tiempo real...) y una deficitaria promoción de la participación ciudadana en aspectos como los buzones de sugerencias, la posibilidad de realizar comentarios o el empleo de herramientas sincrónicas, entre otros.
Las escuadras en las marcas de cantero de la Vila d’Horta de Sant Joan (XIV)
Authors: Lluis i Ginovart Josep , Costa i Jover Agustí , Coll Pla Sergio , López Piquer Mónica 
Published: November 2017

<p>En el ábside de la Iglesia de Horta de Sant Joan (1316), existen unas marcas de cantero con grandes escuadras. El objetivo es determinar la medida y proporcionalidad de este instrumento y su posible utilización en la fábrica medieval. El planteamiento es determinar el funcionamiento de la escuadra por rotación, y en especial en el replanteo de ábside pentagonal. La escuadra puede ser utilizada como un ábaco para la construcción de polígonos regulares. Estos instrumentos, mediante pequeños ajustes y calibraciones, permiten resultados muy eficaces para la construcción de polígonos 11, 13, 14, 17 o 19 lados, que no aparecen ni en las fuentes <em>mathematicis</em>, ni en los escasos códices de la <em>Practica Geometriae</em>.</p>
El espacio digital: comparativa de las últimas técnicas de visualización arquitectónica
Authors: Higuera Trujillo Juan Luis , López-Tarruella Maldonado Juan , Llinares Millán Carmen , Iñarra Abad Susana 
Published: November 2017

<p>La gran evolución tecnológica en los medios de representación arquitectónica durante las últimas décadas, ha abierto un nuevo abanico de posibilidades digitales para visualizar el espacio no construido.</p><p>Los sistemas de inmersión espacial, desarrollados inicialmente por la industria del videojuego, han ido adentrándose en el escéptico ámbito de la representación arquitectónica, ofreciendo una serie de innegables ventajas, entre ellas facilitar la comprensión de los espacios al no especializado.</p><p>Con el objeto de estudiar las bondades de estas nuevas herramientas virtuales, se llevó a cabo un estudio experimental que compara la respuesta del usuario ante distintos soportes gráficos y tecnológicos.</p><p>Con una muestra de 84 participantes, los datos obtenidos revelan importantes diferencias en la percepción del espacio en función del formato y soporte empleado para su representación. Los resultados de este trabajo permiten reflexionar en torno a los nuevos medios de representar la arquitectura, en el ámbito profesional y el docente.</p><p> </p>