bluuebunny/crossref_metadata_2025_split huggingface dataset:
Milky Way Subsystems from Globular Cluster Kinematics Using Gaia DR2 and HST Data
Authors: Bajkova A. T. , Carraro G. , Korchagin V. I , Budanova N. O. , Bobylev V. V. 
Published: May 2020

Abstract
We employ Gaia DR2 proper motions for 151 Milky Way globular clusters (GCs) from Vasiliev in tandem with distances and line-of-sight velocities to derive their kinematical properties. To assign clusters to the Milky Way thick disk, bulge, and halo, we follow the approach of Posti et al., who distinguished among different Galactic stellar components using stars’ orbits. In particular, we use the ratio L

z
/e, the Z projection of the angular momentum to the eccentricity, as a population tracer, which we complement with chemical abundances extracted from the literature and Monte Carlo simulations. We find that 20 GCs belong to the bar/bulge of the Milky Way, 35 exhibit disk properties, and 96 are members of the halo. Moreover, we find that halo GCs have close to zero rotational velocity with an average value

km s−1. On the other hand, the sample of clusters that belong to the thick disk possess a significant rotation with average rotational velocity 179 ± 6 km s−1. The 20 GCs orbiting within the bar/bulge region of the Milky Way have an average rotational velocity of 49 ± 11 km s−1.
Le New Public Management et la redéfinition de l’activité infirmière. De la fabrique des nouvelles élites professionnelles
Authors: Toffel Kevin , Tawfik Amal 
Published: May 2020

Les travaux des sciences sociales soulignent généralement les effets néfastes des réformes du New Public Management qui impliqueraient en particulier une diminution de l’autonomie au travail sous le coup d’injonctions managériales exogènes aux logiques professionnelles. Considérer les professions comme des espaces de différenciation permet cependant de voir que ces effets s’exercent de façon très variable sur les individus en fonction des positions professionnelles occupées. Nous montrons que les infirmières ayant bénéficié de la récente académisation de la formation en Suisse tirent un certain profit de l’introduction de ces réformes. Bien qu’elle repose sur des savoirs scientifiques, cette formation est traversée de logiques gestionnaires dont le « management par la qualité » constitue la pierre angulaire. Par le truchement de l’académisation de la profession, les réformes du NPM contribuent ainsi à l’émergence de nouvelles « élites professionnelles » particulièrement adaptées aux demandes gestionnaires.
Usages des TIC et appropriations des médias en période de crise sociale
Authors: Bérubé Farrah , Pulvar Olivier 
Published: May 2020

Les crises contemporaines affectent la circulation de l’information, notamment dans leurs répercussions sociales. Les modes de diffusion classiques des médias de masse en côtoient d’autres, plus émergents, au centre desquels les réseaux électroniques occupent une position centrale. Dès lors, la pluralité des émetteurs de messages, la variété des contenus, la diversité des voies et moyens de la communication autour des phénomènes en cours s’ajoutent aux « sources autorisées ». Cette communication plurielle encourage des appropriations de contenus identitaires et des usages informatifs, symboliques, voire stratégiques des médias. Facteur parmi d’autres des mutations sociales et institutionnelles, l’effet des médias et/ou des TIC sur les réalités politiques et sociales est désormais admis. Plutôt que d’y observer l’action intrinsèque des techniques dans le sens du progrès des collectivités humaines, il faut voir dans les processus de communication, un indicateur des mutations en cours. Les travaux menés au Mexique et aux Antilles dans cette perspective permettent de revisiter la question du rôle des médias et des TIC dans ces sociétés, au-delà de l’approche par les effets privilégiée jusque-là. Les médias agissent sur les cultures et les identités au moins autant que ces dernières en réinterprètent les messages pour les faire fonctionner dans un espace social donné. Aussi, s’interroger sur la place concrète des médias et des TIC dans les mobilisations collectives, soulève une autre question : comment repérer et caractériser les nouvelles formes collectives de traitement de l’information, d’implication, de participation et de mobilisation ?
May sympatric Lesser Spotted Eagles and Black Storks compete for nesting sites in spatially varying environments?
Authors: Skuja Saulis , Mozgeris Gintautas , Treinys Rimgaudas 
Published: May 2020

Sympatric species are likely to compete with one another unless there is a low degree of overlap in their resource use, in which case these species are able to coexist. Disclosing of biotic interactions between sympatric species is important from both theoretical and practical perspectives, especially when the species are of conservation concern. However, environmental heterogeneity may introduce variation in the intensity of biotic interactions due to differential a varying species responses to the environmental gradient. In this study, we analysed the overlap in nesting sites between the internationally protected, mature, forest-dwelling Lesser Spotted Eagle Clanga pomarina and the Black Stork Ciconia nigra. The importance of landscape heterogeneity for habitat segregation between these species was also assessed. The nesting sites of 123 pairs of Lesser Spotted Eagles and 78 pairs of Black Storks, located across different landscapes of the Central, Central-Eastern and Eastern Lithuanian ecoregions were described. A series of discriminant analyses were performed to explore the pattern of habitat differentiation between species nesting in the above-mentioned regions. The habitat differentiation was estimated by niche overlap values (range 0-1, with a value 0.6 suggested to be the threshold between coexistence and competition). Comparison of nesting sites of mature forest-dwellers resulted in the niche overlap values for Central, Central-Eastern and Eastern regions being 0.5, 0.63 and 0.55, respectively. These results indicated relatively high niche overdispersion between nesting sites occupied by eagles and storks. Different variables and/or their combinations resulted in habitat differences in each ecoregion. Our data indicate that biotic interaction between species is mediated by environmental heterogeneity. Although our data tend to support the coexistence of the Black Stork and the Lesser Spotted Eagle, in certain regions these mature, forest-dwelling predators may use similar habitats and compete for prime sites under specific landscape structures. We, therefore, propose the necessity of the importance of a spatially-segregated estimation on biotic interactions when developing conservation programmes and allocating conservation actions within the target region.
Rancang Bangun Trainer Konverter berbasis Arduino Mega 2560 sebagai Sarana Praktikum di Laboratorium Listrik Politeknik Penerbangan Surabaya
Authors: KS Rikza , Sudjoko Rifdian 
Published: May 2020

Salah satu mata kuliah Program Studi Diploma III Teknik Listrik Bandar Udara yaitu elektronika daya. Dalam mata kuliah tersebut terdapat materi tentang penyearah tegangan, buck konverter, boost konverter dan inverter yang biasa disebut sebagai konverter daya atau pengkonversian daya dari ac ke dc, ac ke ac, dc ke dc maupun dc ke ac yang sangat berguna sekali bagi manusia untuk memenuhi kebutuhan energi sehari-hari.
Pada pengkonversian daya perlu kita ketahui pula bentuk gelombang dari input dan output dari suatu rangkaian konverter agar dapat kita ketahui perbedaan dari kedua gelombangnya agar tidak salah memilih rangkaian konverter mana yang tepat untuk menyuplai suatu beban. Sehingga tidak merusak komponen-komponen dari rangkaian konverter maupun beban yang akan disuplai.
Pada konverter terdapat berbagai macam komponen – komponen elektronika yang memiliki sifat – sifat dan fungsi tertentu yang terintegrasi untuk menghasilkan konversi yang dibutuhkan. Sehingga pemahaman tentang komponen pada konverter perlu dimiliki dengan kontrol dan monitor bebasis mikrokontroler melalui Personal Computer.
Long-term reliability of the Figaro TGS 2600 solid-state methane sensor under low-Arctic conditions at Toolik Lake, Alaska
Authors: Eugster Werner , Laundre James , Eugster Jon , Kling George W. 
Published: May 2020

Abstract. The TGS 2600 was the first low-cost solid-state sensor that shows a response to ambient levels of CH4 (e.g., range ≈1.8–2.7 µmol mol−1). Here we present an empirical function to correct the TGS 2600 signal for temperature and (absolute) humidity effects and address the long-term reliability of two identical sensors deployed from 2012 to 2018. We assess the performance of the sensors at 30 min resolution and aggregated to weekly medians. Over the entire period the agreement between TGS-derived and reference CH4 mole fractions measured by a high-precision Los Gatos Research instrument was R2=0.42, with better results during summer (R2=0.65 in summer 2012). Using absolute instead of relative humidity for the correction of the TGS 2600 sensor signals reduced the typical deviation from the reference to less than ±0.1 µmol mol−1 over the full range of temperatures from −41 to 27 ∘C. At weekly resolution the two sensors showed a downward drift of signal voltages indicating that after 10–13 years a TGS 2600 may have reached its end of life. While the true trend in CH4 mole fractions measured by the high-quality reference instrument was 10.1 nmolmol-1yr-1 (2012–2018), part of the downward trend in sensor signal (ca. 40 %–60 %) may be due to the increase in CH4 mole fraction because the sensor voltage decreases with increasing CH4 mole fraction. Weekly median diel cycles tend to agree surprisingly well between the TGS 2600 and reference measurements during the snow-free season, but in winter the agreement is lower. We suggest developing separate functions for deducing CH4 mole fractions from TGS 2600 measurements under cold and warm conditions. We conclude that the TGS 2600 sensor can provide data of research-grade quality if it is adequately calibrated and placed in a suitable environment where cross-sensitivities to gases other than CH4 are of no concern.
HydroMix v1.0: a new Bayesian mixing framework for attributing uncertain hydrological sources
Authors: Beria Harsh , Larsen Joshua R. , Michelon Anthony , Ceperley Natalie C. , Schaefli Bettina 
Published: May 2020

Abstract. Tracers have been used for over half a century in hydrology to quantify
water sources with the help of mixing models. In this paper, we build on
classic Bayesian methods to quantify uncertainty in mixing ratios. Such
methods infer the probability density function (PDF) of the mixing ratios by
formulating PDFs for the source and target concentrations and inferring the
underlying mixing ratios via Monte Carlo sampling. However, collected
hydrological samples are rarely abundant enough to robustly fit a PDF to the
source concentrations. Our approach, called HydroMix, solves the linear
mixing problem in a Bayesian inference framework wherein the likelihood is
formulated for the error between observed and modeled target variables,
which corresponds to the parameter inference setup commonly used in
hydrological models. To address small sample sizes, every combination of
source samples is mixed with every target tracer concentration. Using a
series of synthetic case studies, we evaluate the performance of HydroMix
using a Markov chain Monte Carlo sampler. We then use HydroMix to show that
snowmelt accounts for around 61 % of groundwater recharge in a Swiss
Alpine catchment (Vallon de Nant), despite snowfall only accounting for
40 %–45 % of the annual precipitation. Using this example, we then
demonstrate the flexibility of this approach to account for uncertainties in
source characterization due to different hydrological processes. We also
address an important bias in mixing models that arises when there is a large
divergence between the number of collected source samples and their flux
magnitudes. HydroMix can account for this bias by using composite likelihood
functions that effectively weight the relative magnitude of source fluxes.
The primary application target of this framework is hydrology, but it is by
no means limited to this field.
Los planes especiales de protección de los centros históricos: la necesidad de un nuevo modelo de protección
Authors: Vázquez Ríos Rafael 
Published: May 2020

La declaración de un Conjunto Histórico como bien de interés cultural lleva aparejada la realización de un plan especial de protección para dicho ámbito. Este plan, que forma parte del Plan General de Ordenación Urbanade una ciudad, están elaborados en la actualidad basándose en normas eminentemente urbanísticas con propuestas que afectan a la edificación, a las alineaciones y a los usos de los edificios incorporando todos ellos la figura de los catálogos de protección que hacen más amplia la conservación de los conjuntos. Sin embargo, estos documentos adolecen de muchos aspectos transversales que consideramos fundamentales para una protección efectiva de estos entornos, tales como los económicos, medioambientales, turísticos (incluido el nuevo fenómeno de las viviendas de uso turístico), la necesidad de recoger usos más amplios, comercio, transporte, accesibilidad y la gestión de estos conjuntos mediante figuras como los consorcios o patronatos. Es por ello, que entendemos de enorme interés analizar el régimen jurídico de este instrumento de protección para poder proponer algunas medidas que redunden en una mejor protección de estos entornos urbanos y que con la necesaria adaptación de la normativa correspondiente consigamos un nuevo concepto de Plan Especial de Protección.
The Declaration of a historic set of cultural interest carries the accomplishment of a special protection plan for this area. This plan, which is part of the comprehensive Plan of urban development of a city, are currently based on eminently town planning regulations with proposals that affect the building, alignments and the uses of buildings incorporating all of them the figure of protection catalogs that make larger sets conservation. However, these documents are transversal aspects which we consider fundamental for effective protection of these environments, such as the economic, environmental, tourism (including the new phenomenon of the dwellings of use tourist), the need to collect wider applications, Commerce, transport, accessibility and management of these sets by figures such as consortia or boards. That is why, we understand enormous interest to analyze the status of this instrument of protection to be able to propose some measures which lead to better protection of these urban environments and that, with the necessary adaptation of the corresponding legislation, get a new concept of special protection Plan.
Gestão urbana e arranjos institucionais para a política de ciclomobilidade: perspectivas de avanço no cicloturismo urbano na cidade de Curitiba, Brasil
Authors: Silva Segovia Yenifer Ninosca 
Published: May 2020

A capacidade de articulação de política pública de mobilidade e turismo urbano em sistemas locais de gestão e governança tem sido colocada como desafio para a formulação de políticas urbanas cicloinclusivas em diferentes países. Nesse contexto, o objetivo do presente é delinear o contexto da ciclomobilidade de grandes cidades lationoamericas e compreender como órgãos e entidades públicas municipais responsáveis por políticas públicas de Curitiba associam a mobilidade urbana cicloinclusiva e atividades cicloturísticas. O estudo foi realizado a partir de base documental e de entrevistas com gestores municipais. Os resultados evidenciam, por um lado, fragilidades na articulação e formação de visões concordantes entre as entidades que compõem o sistema de governança e de gestão urbana local responsável por incentivar, regular e aplicar recursos públicos na atividade cicloturística urbana e, por outro, riscos elevados para aumentar a utilização de bicicletas no sistema urbano viário de Curitiba.
The capacity for articulating public policies for mobility and urban tourism in local management and governance systems has been challenged for the formulation of cycle-inclusive urban policies in different countries. In this context, the purpose of this paper is to outline the context of the cyclomobility of large Latin American cities and to understand how municipal public bodies and entities responsible for public policies in Curitiba associate urban mobility and cyclotourism activities. The results show, on the one hand, weaknesses in the articulation and formation of concordant views between the entities that make up the system of governance and local urban management responsible for encouraging, regulating and applying public resources in urban cyclotourism activity and, on the other hand, high risks to increase the use of bicycles in the urban road system of Curitiba.
Tecnologías de información geográfica para la gestión del patrimonio territorial: los paisajes culturales de la sal en Chile
Authors: Román López Emilia , González Loyola Mauricio Sebastián 
Published: May 2020

La presente investigación ofrece resultados sobre el estudio de los paisajes culturales salados en Chile y su relación con los existentes en España, concretamente en Andalucía. El interés reside en estudiar áreas con latitudes y culturas similares, ya que las salinas estudiadas utilizan técnicas de producción artesanal, con gran dependencia de los ciclos estacionales y la posición geográfica, al utilizar energías renovables. El aspecto cultural también es fundamental, pues ha determinado la aplicación y desarrollo de técnicas de explotaciónheredadas de la tradición española desde hace más de 400 años, aunque previamente existían salares “naturales” de explotación indígena. Actualmente este valioso patrimonio cultural presenta un importante proceso de abandono y olvido por parte de la sociedad chilena, al igual que ocurre en España. Esta circunstancia es una de las principales causas de su acelerado deterioro y desaparición en los últimos años y, por ello, se pretende fortalecer su conocimiento mediante el empleo de las TIGs.
This research offers results on the study of cultural saltplants in Chile and their relationship with those existing in Spain, specifically in Andalusia. The interest lies in studying areas with similar latitudes and cultures, since the salinas studied use handcrafted production techniques, with great dependence on seasonal cycles and geographical location, using renewable energies. The cultural aspect is also fundamental, since it has determined the application and development of exploitation techniques inherited from the Span ish tradition for more than 400 years, although previously there were "natural" salt flats of indigenous exploitation. Currently, this valuable cultural heritage presents an important process of abandonment and oblivion by Chilean society, as occurs in Spain. This circumstance is one of the main causes of its accelerated deterioration and disappearance in recent years and, therefore, it is intended to strengthen its knowledge through the use of ITCs.
Territórios informais desenhados no litoral brasileiro: processos restritivos, permissivos, ocultos e pactuados à luz da legislação urbanística e ambienta
Authors: Gomes Ramon Fortunato , Bitencourt Ricardo Batista , Ribeiro Rômulo José da Costa 
Published: May 2020

O estudo desenvolve a análise do planejamento urbano por meio de planos de ordenamento territorial, códigos, leis e práticas de gestão urbana adotadas no gerenciamento territorial. Compõem o objeto de estudo cidades cujo arcabouço jurídico urbanístico compreende ferramenta singular ao ordenamento territorial e à preservação urbanística e paisagística: os Conjuntos Urbanos Tombados, cidades históricas no litoral brasileiro. Foianalisada a legislação urbanística e ambiental vigente nessas cidades, bem como as áreas de expansão urbana e formações periféricas. A sobreposição de imagens de satélite obtidas no Google Earth constituiu o método de identificação dos territórios informais, definidos como “ocorrências urbanas”, cuja constituição e consolidação envolveram processos na gestão territorial que fomentam formações em núcleos urbanos informais. Assim, mediante as análises em planos territoriais, em leis e na gestão urbanística, conclui-se que as práticas de gestão urbana contribuem, via processos distintos, para a formação e consolidação das ocupações informais.
This study analyzes urban planning in terms of territorial planning plans, codes, laws and urban management practices adopted in territorial management. The object of study is the cities whose urban juridical framework comprises a unique tool for territorial planning, urban and landscape preservation: the listed historical cities located on the Brazilian coast. The urban building and environmental legislation in force, as well as the areas of urban expansion and peripheral formations, were analyzed. Satellite images obtained in Google Earth were overlapped as a method to identify informal territories, defined as "urban occurrences". The constitution and consolidation of urban occurrences involve processes in territorial management that encourage informal urban centers. Based on analyses of territorial plans, laws and urban management, it is concluded that urban management practices contribute to the formation and consolidation of informal occupations.
O conceito de resiliência urbana: uma ferramenta para a análise de intervenções recentes no centro histórico de São Paulo
Authors: Paiva Marlon , Schicchi Maria Cristina da Silva 
Published: May 2020

Este artigo apresenta algumas considerações sobre a definição do conceito de resiliência urbana - traduzido como a medida das alterações desencadeadas e toleradas pelas cidades, antes de se reorganizarem integralmente em torno de novas estruturas e processos - apresentando uma revisão da literatura científica sobre a sua origem e uma discussão sobre a possibilidade de sua aplicação enquanto ferramenta de análise de intervenções urbanas contemporâneas em centros históricos de grandes metrópoles, como o caso das ações empreendidas na Praça Roosevelt da cidade de São Paulo (2000-2012) – de modo a verificar as repercussões de tais processos na lógica de produção dos espaços públicos locais, resultado dos primeiros estudos que se produziu no âmbito da pesquisa de doutorado em desenvolvimento.
This article presents some considerations about the definition of the concept of urban resilience - translated as the measure of the changes triggered and tolerated by the cities, before being reorganized integrally around new structures and processes - presenting a review of the scientific literature on their origin and a discussion about the possibility of its application as a tool for the analysis of contemporary urban interventions in historic centers of large metropolises, such as the case of actions undertaken in Roosevelt Square in the city of São Paulo (in order to verify the repercussions of such processes in the logic of production of the local public spaces, result of the first studies that took place in the scope of the doctoral research in development.