bluuebunny/crossref_metadata_2025_split huggingface dataset:
Redshift Evolution of Green Valley Galaxies in Different Environments from the Hyper Suprime-Cam Survey
Authors: Jian Hung-Yu , Lin Lihwai , Koyama Yusei , Tanaka Ichi , Umetsu Keiichi , Hsieh Bau-Ching , Higuchi Yuichi , Oguri Masamune , More Surhud , Komiyama Yutaka , Kodama Tadayuki , Nishizawa Atsushi J. , Chang Yu-Yen 
Published: May 2020

Abstract
Green valley galaxies represent the population that is likely to transition from star-forming to quiescent phases. To investigate the role of the environment in quenching star formation, we use the wide-field data from the Hyper Suprime-Cam Strategic Subaru Proposal survey to quantify the frequency of green valley galaxies in different environments and their redshift evolution. We find that the green valley fraction, in general, is less than 20% in any redshift and environment. The green valley fraction, when normalized to the total population, is higher in the field than that in groups or clusters and decreases with decreasing redshift and increasing mass. The lower fraction of transitional galaxies in denser environments could be a consequence of the lack of star-forming galaxies, which could be the progenitors of green valley galaxies. To assess the effect of the environment on star formation quenching, we define the effective green valley fraction as the ratio of the number of green valley galaxies to that of nonquiescent galaxies only. The effective green valley fraction for field galaxies is lower than that for group or cluster galaxies, which reveals a strong positive mass dependence and mild redshift evolution. Moreover, the specific star formation rate is reduced by 0.1–0.3 dex in groups or clusters. Our results thus imply that an ongoing slow quenching process has been acting in the dense environment since z ∼ 1.
A Fully Time-dependent Ab Initio Cosmic-Ray Modulation Model Applied to Historical Cosmic-Ray Modulation
Authors: Moloto K. D. , Engelbrecht N. Eugene 
Published: May 2020

Abstract
Cosmogenic nuclide records can in principle allow for the estimation of the behavior of the heliospheric magnetic field (HMF) in the distant past. This requires careful modeling of cosmic-ray transport in a manner that is as realistic as possible, taking into account as many of the factors affecting the transport of cosmic-rays (CRs) as possible. The present study presents a 3D time-dependent ab initio CR modulation code that utilizes as inputs simple theoretically and observationally motivated temporal profiles to model large-scale (such as the tilt angle) and small-scale (such as the magnetic variance) parameters relevant to CR transport. Galactic CR proton differential intensities computed using this model for the period 1977–2001 are in reasonable to good agreement with spacecraft observations, reproducing the major salient features of the observed CR intensity temporal profile. To investigate pre-space-age cosmic-ray modulation, and to test conclusions previously drawn regarding the relative importance of drift effects on said modulation, historic estimates of the past HMF presented by McCracken & Beer were used as inputs for the model. The resulting CR temporal intensity profile displays clear evidence of drift effects, with a sharp peak in intensities during the Dalton Minimum.
Universal regularity of higher-dimensional disorder and density of states under non-local interactions. I. Infinite smoothness and localization
Authors: Chulaevsky Victor 
Published: May 2020

It is shown that in a large class of disordered systems with singular alloy-type disorder and non-local media-particle interactions, the marginal measures of the induced random potential and the finite-volume integrated density of states (IDS) are infinitely differentiable in higher dimensions.
The proposed approach complements the classical Wegner estimate which says that the IDS in the short-range models is at least as regular as the marginal distribution of the disorder. In the models with non-local interaction the finite-volume IDS is much more regular than the underlying disorder. In turn, smoothness of the finite-volume IDS is responsible for a mechanism complementing the Lifshitz tails phenomenon.
The new eigenvalue concentration estimates give rise to relatively simple proofs of Anderson localization in several classes of discrete and continuous long-range models with arbitrarily singular disorder. The present paper addresses the model with power-law decay of the potential.
Indígenas no Triângulo Mineiro e Alto Paranaíba - MG: Sítios arqueológicos e patrimônio
Authors: Filho Aurelino José Ferreira 
Published: May 2020

ResumoEste artigo é resultado de trabalhos, em âmbito de extensão, por nós desenvolvidos no Campus Pontal da Universidade Federal de Uberlândia − mais especificamente nos municípios de Ituiutaba e Cachoeira Dourada − na área do patrimônio arqueológico indígena, Trata-se, também, da publicação parcial da pesquisa intitulada História indígena, arqueologia e patrimônio cultural: Triângulo Mineiro-MG[1], desenvolvida por Claudio Scarparo Silva sob nossa orientação. Buscamos, assim, contribuir com as pesquisas­­ acerca da História e da arqueologia indígena da Região do Pontal do Triângulo Mineiro e Alto Parnaíba– MG.[1]Trabalho de Conclusão de Curso – TCC, defendido no Curso de História da Universidade Federal de Uberlândia – UFU, agosto, 2015
Capitalismo dependente e empobrecimento indígena no Brasil ruralista
Authors: Teófilo da Silva Cristhian 
Published: May 2020

Este artigo defende que estudos sobre as formas de desigualdade e pobreza que afetam os povos indígenas contemporâneos deve partir de uma perspectiva macro-histórica e micro-sociológica, de modo a construir uma definição de “pobreza indígena” sensível a sua diversidade e complexidade de manifestações. Para isto buscará conciliar os debates sobre o capitalismo dependente e os processos socioeconômicos de integração dos povos indígenas a sistemas coloniais e capitalistas específicos atentos ao fato de que estes não se desenrolaram de modo idêntico em cada lugar e tampouco de forma inalterada ao longo do tempo, como atestam os estudos sobre o contato interétnico em antropologia e etnohistória, que privilegiam as perspectivas e transformações indígenas sobre esses processos. O artigo estará apoiado em contribuições etnográficas e denúncias de violação dos direitos humanos dos povos indígenas nas regiões da fronteira Sul do Brasil.
Contrastive focus reduplication and the modification puzzle
Authors: Bross Fabian , Fraser Katherine 
Published: May 2020

In this short paper we present a so far unnoticed syntactic constraint on contrastive focus reduplication (CR), a phenomenon that restricts the semantics of the reduplicated element to a prototypical meaning (but has other uses as well): The CR construction cannot be modified. In the case of nominal CR, this means that adjectival modification is blocked, as in *black COFFEE-coffee. We present data from English and German to support our claim and highlight how earlier accounts fail to capture the syntactic restriction. We then provide a sketch of an analysis couched with a Cartographic framework, tentatively proposing that CR results either (i) from cyclical movement of phrasal material through the specifiers of functional projections into the specifier of a focus phrase or (ii) by directly moving phrasal material into the specifier of a focus phrase.
Reasons for Revision: Primary Total Hip Arthroplasty Mechanisms of Failure
Authors: Kelmer Grayson , Stone Andrea H. , Turcotte Justin , King Paul J. 
Published: May 2020

Background:
This study aimed to examine the major reasons for total hip arthroplasty (THA) failure and temporal patterns in THA revisions.

Methods:
A retrospective chart review was conducted on 535 revisions performed on 444 THAs from January 2010 to May 2019 at our institution.

Results:
The average time to revision THA was 8.51 ± 8.38 years, with 136 cases (30.9%) occurring within 2 years after primary THA. The major mechanisms of failure that resulted in revision surgery were mechanical failure (162, 36.5%), metallosis (95, 21.4%), dislocation or instability (65, 14.6%), periprosthetic fracture (46, 10.4%), infection (44, 9.9%), hematoma or poor wound healing (15, 3.4%), and pain or other (17, 3.8%).

Conclusion:
Based on our institutional experience over the past decade, mechanical failure without dislocation, metallosis, dislocation, periprosthetic fracture, and infection are typical reasons patients present for primary THA revision. Revisions within 2 years after primary THA are more likely to be the result of infection and periprosthetic fracture. Mechanical failure is the most common reason for revision THA overall, and mechanical failure and metallosis are more likely to be the reason revision is necessary 2 or more years after primary THA.
Tertiary level proficiency in ESP: Employer survey analysis
Authors: Jašková Jana , Šťastná Dagmar 
Published: May 2020

One of the most topical issues in the field of teaching and learning English for Specific Purposes is the question whether tertiary students are able to succeed in mastering English as a foreign language effectively and subsequently to be competitive in the multicultural corporate sphere. The paper presents a study aimed at large employers and their requirements on university graduates’ language skills. The research was conducted in November 2018 within 12th JobChallenge Fair in Brno, Czech Republic, where large companies and businesses targeted students as their prospective employees. Following theoretical groundwork, a questionnaire was designed and distributed to representatives of 36 companies operating in engineering, information technology and economy. The aim of the survey was to identify the required language proficiency according to the Common European Framework of References for Languages as a model for describing knowledge levels. Findings show that most of the employers prefer graduates in junior positions with B2 level of English, specifically of both English for General Purposes and English for Specific Purposes. In addition, the analysis reveals a great demand for productive skills such as active participating in meetings, telephoning, business correspondence or presentation skills whereas receptive skills are considered to be less important.
Němčina v politice a diplomacii na Vysoké škole ekonomické
Authors: Nováková Eva 
Published: May 2020

Článek seznamuje s výukou odborné němčiny zaměřené na oblast politiky a diplomacie na Vysoké škole ekonomické v Praze. Úvodem je představen systém jazykové výuky na Fakultě mezinárodních vztahů VŠE, bakalářský studijní program Mezinárodní studia – diplomacie a dva kurzy odborného jazyka určené pro tento program Němčina v mezinárodních studiích 1 a 2. Podstatnou část příspěvku tvoří prezentace základního učebního materiálu Politik und Diplomatie auf Deutsch, který byl pro tyto kurzy vytvořen, a především různých metodických postupů při práci s ním. Uvedené jsou také doplňkové formy výuky – práce s politickými aktualitami, televizními zprávami a autentickými mediálními texty – včetně opakování gramatiky a forem testování. Závěrem se konstatuje, že v kurzech určených pro studenty bakalářského programu Mezinárodní studia – diplomacie lze také v němčině jako druhém cizím jazyce pracovat s odborným jazykem na pokročilé úrovni a vhodnými strategiemi motivovat studenty k jeho osvojování a upevňování.
Slovenčina pre študentov medicíny
Authors: Durajka Radoslav 
Published: May 2020

Autor predstavuje novú učebnicu pre zahraničných študentov medicíny „SLOVENČINA pre študentov medicíny“, jej koncepciu so zameraním na špecifiká vyučovania jazyka v nefilologickom odbore. Opisuje jednotlivé časti knihy, uvádza modifikované príklady gramatiky a zároveň upriamuje pozornosť na cieľ výučby – zvládnuť komunikáciu v bežnom živote, na univerzite, ale najmä v medicínskej praxi, preto tematicky čerpá najmä z tohto prostredia.
Genome-wide identification and characterization of TCP family genes in Brassica juncea var. tumida
Authors: He Jing , He Xiaohong , Chang Pingan , Jiang Huaizhong , Gong Daping , Sun Quan 
Published: May 2020

Background
Teosinte branched1/Cycloidea/proliferating cell factors (TCPs) are plant-specific transcription factors widely involved in leaf development, flowering, shoot branching, the circadian rhythm, hormone signaling, and stress responses. However, the TCP function in Brassica juncea var. tumida, the tumorous stem mustard, has not yet been reported. This study identified and characterized the entire TCP family members in B. juncea var. tumida.

Methods
We identified 62 BjTCP genes from the B. juncea var. tumida genome and analyzed their phylogenetic relationship, gene structure, protein motifs, chromosome location, and expression profile in different tissues.

Results
Of the 62 BjTCP genes we identified in B. juncea var. tumida, containing 34 class I and 28 class II subfamily members, 61 were distributed on 18 chromosomes. Gene structure and conserved motif analysis showed that the same clade genes displayed a similar exon/intron gene structure and conserved motifs. Cis-acting element results showed that the same clade genes also had a similar cis-acting element; however, subtle differences implied a different regulatory pathway. The BjTCP18s members were low-expressed in Dayejie strains and the unswelling stage of Yonganxiaoye strains. Treatment with gibberellin (GA) and salicylic acid (SA) showed that GA and SA affect the expression levels of multiple TCP genes.

Conclusion
We performed the first genome-wide analysis of the TCP gene family of B. juncea var. tumida. Our results have provided valuable information for understanding the classification and functions of TCP genes in B. juncea var. tumida.
A metagenomic approach in the evaluation of the soil microbiome in coffee plantations under organic and conventional production in tropical agroecosystems
Authors: Rodríguez Alejandra Cabrera- , Calzada Ricardo Trejo- , Peña Cristina García-De la , Ávila Jesús G. Arreola- , Reyna Erika Nava- , Paniagua Felipe Vaca- , Velásquez Clara Díaz- , Herrera César A. Meza- 
Published: May 2020

The aim of this study was to determine the soil microbiome throughout mass sequencing in coffee plantations managed with either an organic (OAM; i.e., bio-fertilizers Azospirillum brasilense and Glomus intraradices) or a conventional (CAM; i.e., traditional NPK-fertilization) agronomic systems. Soil microbiome samples were collected in tropical eastern Mexico (Veracruz, 19°28’ N & 96° 52’ W), with annual average temperature and rainfall of 24.8° C, and 882.6 mm, respectively. Upon DNA soil-microbiome extraction, the V3-V4 16S rRNA region was amplified, and sequenced (Illumina). Results were analyzed with QIIME based on the EzBioCloud reference. Diverse phyla (n=16), classes (n=40), orders (n=90), families (n=135) and genera (n=333) were identified. The diversity index values were similar in both treatments, with Shannon's being 9.7 and Simpson's 0.99. While the phylum Proteobacteria was more abundant in CAM-soils and classified as copiotrophic, the phylum Acidobacteria was more abundant in OAM-soils and classified as oligotrophic. This classification may be related to the application of microorganisms and their effect on the soil´s state of organic matter and carbon fractions. Our research outcomes indicate that the application of bio-fertilizers promoted an increased presence of Acidobacteria, a phylum positively correlated with organic matter while significantly involved in carbon sequestration. Undisputable, metagenomics emerges as an interesting up-to-date genomic technology for unveiling the hidden content of the soil microbiome black box.
Occupational health responses to COVID-19: What lessons can we learn from SARS?
Authors: Koh David , Goh Hui Poh 
Published: May 2020

Abstract
On 31 December 2019, the World Health Organization (WHO) received reports of pneumonia cases of unknown etiology in the city of Wuhan in Hubei Province, China. The agent responsible was subsequently identified as a coronavirus—SARS-CoV-2. The WHO declared this disease as a Public Health Emergency of International Concern at the end of January 2020.
This event evoked a sense of déjà vu, as it has many similarities to the outbreak of severe acute respiratory syndrome (SARS) of 2002-2003. Both illnesses were caused by a zoonotic novel coronavirus, both originated during winter in China and both spread rapidly all over the world. However, the case-fatality rate of SARS (9.6%) is higher than that of COVID-19 (&lt;4%). Another zoonotic novel coronavirus, MERS-CoV, was responsible for the Middle East respiratory syndrome, which had a case-fatality rate of 34%.
Our experiences in coping with the previous coronavirus outbreaks have better equipped us to face the challenges posed by COVID-19, especially in the health care setting. Among the insights gained from the past outbreaks were: outbreaks caused by viruses are hazardous to healthcare workers; the impact of the disease extends beyond the infection; general principles of prevention and control are effective in containing the disease; the disease poses both a public health as well as an occupational health threat; and emerging infectious diseases pose a continuing threat to the world. Given the perspectives gained and lessons learnt from these past events, we should be better prepared to face the current COVID-19 outbreak.
De Novo Status Epilepticus in patients with COVID‐19
Authors: Somani Sana , Pati Sandipan , Gaston Tyler , Chitlangia Alissa , Agnihotri Shruti 
Published: May 2020

AbstractNeurological complications are increasingly recognized with SARS‐CoV‐2, the causative pathogen for COVID‐19. We present a single‐center retrospective case series reporting the EEG and outcome of de novo status epilepticus (SE) in two African‐American women with laboratory‐confirmed SARS‐CoV‐2 virus. SE was the initial presentation in one asymptomatic individual. Patient 2 had COVID‐19 pneumonia, and fluctuating mental status that raised the suspicion of subclinical SE. The patient with older age and higher comorbidities failed to recover from the viral illness that has no definitive treatment.
Efficient and Long Lived Green Light‐Emitting Electrochemical Cells
Authors: Namanga Jude E. , Pei Hanwen , Bousrez Guillaume , Mallick Bert , Smetana Volodymyr , Gerlitzki Niels , Mudring Anja‐Verena 
Published: May 2020

AbstractThe combination of high efficiencies and long lifetime in a single light‐emitting electrochemical cell (LEC) device remain a major problem in LEC technology, preventing its application in commercial lighting devices. Three green light‐emitting cationic iridium‐based complexes of the general composition [Ir(C^N)2(N^N)][PF6] with 4‐Fppy (2‐(4‐fluorophenyl)pyridinato) as the cyclometalating C^N ligand and 1,10‐phenanthroline (1), 4,7‐diphenyl‐1,10‐phenanthroline (bathophenanthroline, bphen, 2), and 2,9‐dimethyl‐4,7‐diphenyl‐1,10‐phenanthroline (bathocuprione, dmbphen, 3) as ancillary N^N ligands are synthesized and characterized. Computational studies are carried out in order to compare the electronic structure of the three ionic transition metal complexes (iTMCs) and provide insights into their potential as LEC emitter materials. LECs are then fabricated with complexes 1–3. Driven under a pulsed current, they display a high luminance and current and power efficiencies. As the LEC based on complex 2 displays the overall best device performance, including the longest lifetime of 474 h, it is selected for subsequent driving conditions optimization. An extraordinary power efficiency of 25 lm W−1 and current efficiency of 30 cd A−1 are achieved under optimized operation conditions with reduced current density, resulting in a long device lifetime of 720 h. Altogether, ligand design in iTMCs and optimization of the device driving conditions leads to a significant improvement in LEC performance.
Redirected Zn Electrodeposition by an Anti‐Corrosion Elastic Constraint for Highly Reversible Zn Anodes
Authors: Zhao Ruirui , Yang Ying , Liu Ganxiong , Zhu Renjie , Huang Jingbo , Chen Zhiyuan , Gao Zhonghui , Chen Xiao , Qie Long 
Published: May 2020

AbstractWith advantages such as high theoretical capacity, low cost, and nontoxicity, Zn metal has been widely investigated as an anode for aqueous batteries. However, the problems of dendrite formation and sustained corrosion originating from severe interfacial side reactions and uncontrolled Zn electrodeposition in aqueous electrolytes significantly slows down the practical application of Zn metal anodes. To address these issues, herein, an anti‐corrosion elastic constraint (AEC) is introduced that is built with nanosized TiO2 and polyvinylidene fluoride (PVDF) matrix to Zn anode, where the PVDF layer serves as an elastic H2O/O2‐blocking layer and the decorated TiO2 nanoparticles assist uniform Zn electrodeposition. With this corrosion‐inhibition and electrodeposition‐redirection coating, the electrodeposition consistency and thermodynamic stability of the Zn anode are significantly improved, enabling a long‐term stable plating/stripping performance for 2000 h with an ultralow overpotential (<50 mV) and a high average Coulombic efficiency (>99.4%) for 1000 cycles without obvious dendrite formation. Even at a high current density of 8.85 mA cm−2 with limited Zn supply (DODZn = 60%), stable Zn deposition is achieved over 250 h. When coupled with a MnO2 cathode, the AEC‐Zn anode shows a remarkably enhanced full‐cell cycling stability, indicative of high reliability of aqueous Zn batteries for practical application.
Achieving Stable Cycling of LiCoO2 at 4.6 V by Multilayer Surface Modification
Authors: Cheng Tao , Ma Zhongtao , Qian Ruicheng , Wang Yeting , Cheng Qin , Lyu Yingchun , Nie Anmin , Guo Bingkun 
Published: May 2020

AbstractLiCoO2, which was first proposed as a cathode in 1980 by Prof. John B. Goodenough, is still one of the most popular commercial cathodes for lithium‐ion batteries. Tremendous efforts have been invested in increasing the capacity of LiCoO2 by charging to high voltage. However, a series of issues, such as structural instability and dramatic side reactions with electrolytes, can emerge as cut‐off voltage above 4.5 V (vs Li/Li+). Here, a surface modification strategy with a multilayer structure is provided, involving a Zn‐rich surface coating layer, rock‐salt phase buffer layer and surface gradient Al doping layer, to overcome the detrimental issues and achieve stable cycling of LiCoO2 at 4.6 V. The complete coating of the modification layer restrains the interfacial side reactions with electrolyte and inhibits the impedance growth. The phenomenon of quasi‐epitaxial growth demonstrates that the multilayer structure significantly reduces the lattice mismatch between host LiCoO2 and surface coating layer and enhances the stability of the Zn‐rich outside layer, which promote the long‐term effectiveness of the modification. Furthermore, the disordered rock‐salt phase layer and Al surface doping also enhance the structural stability. All of these synergistically lead to the stable cycling of LiCoO2 at 4.6 V with a capacity retention of 65.7% after 500 cycles.