bluuebunny/crossref_metadata_2025_split huggingface dataset:
Van der Waals 2D Transition Metal Tellurides
Authors: Su Jianwei , Liu Kailang , Wang Fakun , Jin Bao , Guo Yabin , Liu Guiheng , Li Huiqiao , Zhai Tianyou 
Published: August 2019

AbstractAs important members of transition metal chalcogenides (TMCs), transition metal tellurides (TMTs) have drawn much attention for their various crystal structures with various physical properties. These various structures and structural transitions between them not only are fascinating in the fundamental studies, but also provide unprecedented opportunities in novel device design and applications. In this review, the recent developments in the area of TMTs are outlined. First, the unique crystal and electronic structures of TMTs are introduced. Then the TMTs preparation strategies, including novel exfoliation technique and chemical vapor deposition (CVD), are reviewed. Moreover, the distinctive physical properties of TMTs such as phase transition, intrinsic ferromagnetism, and superconductivity are summarized. Additionally, an overview of device applications in the electronics and optoelectronics field is provided. The prospect for the research of TMTs is presented at the end.
Scalable Printing of High‐Resolution Flexible Transparent Grid Electrodes Using Directed Assembly of Silver Nanoparticles
Authors: Abbasi Salman A. , Chai Zhimin , Busnaina Ahmed 
Published: August 2019

AbstractNext‐generation optoelectronic applications such as virtual and augmented reality systems need ultrahigh resolution displays with a greater number of smaller, tightly packed pixels to avoid issues such as aliasing and the screen‐door effect. High‐resolution grid electrodes with submicron or nanoscale line widths are ideal for successful integration of more pixels with smaller light‐emitting diodes. Solution‐printed metal grid electrodes are a cost‐effective alternative to the vapor‐deposited indium tin oxide or metal grid transparent electrodes, but a scalable method to print high‐resolution (≤2 µm line width) grid structures over large flexible or rigid substrates remains elusive. A versatile, scalable, directed assembly process is presented for printing high‐resolution grid transparent conductive electrodes under ambient conditions using silver nanoparticles over large substrates. Silver grid electrodes with line widths of 2 µm and 300 nm are printed using the described process. The aspect ratio and hence the electrical properties of the transparent electrodes are tailored using the withdrawal speed and the depth of the patterned photoresist. A high‐performance grid electrode with a sheet resistance of 43 Ω sq−1 and an average transmittance of ≈93% to visible light is realized. The printed grid electrodes are also remarkably flexible and are suited to a wide variety of conventional and emerging optoelectronic applications.
Activated Carbon in the Third Dimension—3D Printing of a Tuned Porous Carbon
Authors: Steldinger Hendryk , Esposito Alessandro , Brunnengräber Kai , Gläsel Jan , Etzold Bastian J. M. 
Published: August 2019

AbstractA method for obtaining hierarchically structured porous carbons, employing 3D printing to control the structure down to the lower µm scale, is presented. To successfully 3D print a polymer precursor and transfer it to a highly stable and structurally conformal carbon material, stereolithography 3D printing and photoinduced copolymerization of pentaerythritol tetraacrylate and divinylbenzene are employed. Mechanically stable structures result and a resolution of ≈15 µm is demonstrated. This approach can be combined with liquid porogen templating to control the amount and size (up to ≈100 nm) of transport pores in the final carbonaceous material. Additional CO2 activation enables high surface area materials (up to 2200 m2 g‐1) that show the 3D printing controlled µm structure and nm sized transport pores. This unique flexibility holds promise for the identification of optimal carbonaceous structures for energy application, catalysis, and adsorption.
Lower respiratory tract amyloidosis: Presentation, survival and prognostic factors. A multicenter consecutive case series
Authors: Rech Jean‐Simon , Arnulf Bertrand , de Margerie‐Mellon Constance , Talbot Alexis , Malphettes Marion , Vignon Marguerite , Royer Bruno , Lavergne David , Kambouchner Marianne , Meignin Véronique , Bergeron Anne , Prevot Grégoire , Brillet Pierre‐Yves , Martinod Emmanuel , Bridoux Franck , Nunes Hilario , Jaccard Arnaud , Valeyre Dominique , Uzunhan Yurdagül 
Published: August 2019

AbstractLower‐respiratory‐tract (LRT) amyloidosis has rarely been investigated. Our study presents characteristics, outcomes and survival of LRT amyloidosis. This multicenter retrospective study, from 1995 to 2017, included 73 patients with amyloidosis and LRT involvement. Respiratory patterns were: tracheobronchial (n = 17), nodular (n = 10), interstitial (n = 14) or composite (several respiratory involvements, n = 32). Interstitial and composite patterns were associated with multi‐organ amyloidosis (n = 37, 80%) while tracheobronchial and nodular patterns were associated with organ‐limited amyloidosis (n = 21, 78%). Amyloid light chain (AL) amyloidosis was diagnosed in 43 patients (59%), mainly of lambda type (n = 33, 77%). Smokers’ proportion was higher in tracheobronchial (71%) and nodular (90%) patterns than in interstitial (14%) and composite (34%) patterns. The B‐cell neoplasms involved 15 patients (21%), solid neoplasms 8 (11%), connective tissue diseases 8 (11%) and multiple myeloma 6 (8%). The B‐cell and solid neoplasms were most prevalent in nodular pattern. Median follow‐up was 4.4 years (2.2‐8.9). Twenty‐four patients died, mostly from respiratory infection. Survival at 1, 5, 10 years was respectively 88%, 70% and 54% for multi‐organ amyloidosis, 96%, 89% and 69% for organ‐limited amyloidosis (P = .125). Tracheobronchial and nodular patterns survival was better than in other respiratory patterns (P = .039). Death risk factors (multivariate analysis) were: cardiac localization (hazard‐ratio [HR] 4.3 [95% confidence interval 1.6‐11.5]; P = .004), age (HR 2.1 [1.2‐3.7]; P = .008) and dyspnea at diagnosis (HR 4.0 [1.3‐12.3]; P = .014). Various LRT amyloidosis patterns depend on smoking habits, organ‐limited or multi‐organ extension and comorbidities. They are associated with a different survival, which is also predicted by age, cardiac localization and dyspnea at presentation.
Growth velocity curves and pubertal spurt parameters of Peruvian children and adolescents living at different altitudes. The Peruvian health and optimist growth study
Authors: Santos Carla , Bustamante Alcibíades , Katzmarzyk Peter T. , Vasconcelos Olga , Garganta Rui , Freitas Duarte , Mirzaei‐Salehabadi Sedigheh , Maia José 
Published: August 2019

AbstractObjetiveTo estimate the growth parameters of Peruvian children and adolescents living at different altitudes.MethodsThe sample comprised 10 795 Peruvian children and adolescents (5781 girls, aged 6‐7 years) from sea level, the Amazon region, and high altitude. Height was measured with standardized techniques. Mathematical and biological growth parameters were estimated using the Preece‐Baines growth model I.ResultsSea‐level children and adolescents experienced peak height velocity (PHV) at an earlier age (girls, 8.56 ± 2.37 years; boys, 12.03 ± 0.58 years) were taller at the time of PHV (girls, 144.1 ± 1.9 cm; boys, 154.3 ± 1.4 cm), had higher PHV (girls, 6.23 ± 3.87 cm/year; boys, 7.52 ± 2.31 cm/year), and had a taller estimated final height (girls, 154.2 ± 0.3 cm; boys, 166.3 ± 1.0 cm) compared to those living at high altitude (girls, 152.7 ± 0.7 cm; boys, 162.8 ± 0.8 cm) or in the Amazon region (152.1 ± 0.4 cm; boys, 162.2 ± 0.6 cm). Across all geographical areas, PHV occurred approximately 2 years earlier in girls (9.68 ± 0.99 years) than in boys (12.61 ± 0.42 years), their estimated PHV was 5.88 ± 1.92 cm/year vs 6.45 ± 1.09 cm/year, their size at PHV was 142.2 ± 1.4 cm vs 152.8 ± 0.7 cm, and their final adult height was estimated to be 153.1 ± 0.3 cm vs 164.2 ± 0.7 cm.ConclusionsPeruvian children and adolescents' physical growth timing and tempo were influenced by their living altitudes. Those living at sea level experienced an earlier age at PHV were taller at time of PHV, had a higher PHV, and had a taller estimated final height compared to those living at higher altitudes. Girls and boys also differed significantly in their growth parameters.
Nachrichten des Verbandes Biologie, Biowissenschaften & Biomedizin in Deutschland
Authors: Radermacher Margarete 
Published: August 2019

Wissenschaft & GesellschaftDigitale SequenzinformationenFachgespräch zu Genome EditingFachgesellschaftenJährliches Treffen der VBIO‐FachgesellschaftenArbeitskreiseArbeitskreis SchulbiologieTerminhinweis
Navigating activism within the academy: Consciousness building and social justice identity formation
Authors: Kornbluh Mariah , Collins Charlie , Kohfeldt Danielle 
Published: August 2019

AbstractThe academy can provide rich opportunities for the scholar activist through critical discourse within the classroom, consciousness building via community engagement, and leveraging diverse connections. However, the academy often upholds systemic roadblocks, at times enacting policies that further perpetuate inequities. This qualitative study takes a narrative approach to exploring the life course histories of 15 activists occupying diverse yet intersecting dimensions in the spectrum of privilege and oppression. Interviewees are uniquely connected to the academy engaging in a variety of roles and anti‐racist social justice efforts within the northwestern United States. Applying a critical consciousness framework, results highlight key functions of critical reflection and critical action as interviewees engage in critical consciousness raising (i.e., systemic root cause analysis), social justice identity formation (i.e., the politicization of one's identity), and adapting individual theories of social change. Barriers within the institution are also identified concerning the mainstreaming of service learning and university‐required diversity courses, limited structural supports for activists of color, and the institutionalized co‐opting of social change efforts. Lastly, implications for activism, scholarship, and critical pedagogy within the academy are discussed.
Anti‐Pr antibody induced cold autoimmune hemolytic anemia following pneumococcal vaccination
Authors: Bowen Laurel , LePage Nichole , Lewandowska Magdalena , Waxman Dan A. 
Published: August 2019

AbstractWhile rare, vaccination‐induced autoantibodies can occur outside of the pediatric population. This diagnosis should be considered after infectious and lymphoproliferative disorders are ruled out. Clinical management will depend on the individual case, but all patients should be monitored closely.
Suzuki‐Miyaura Cross‐Coupling Using Plasmonic Pd‐Decorated Au Nanorods as Catalyst: A Study on the Contribution of Laser Illumination
Authors: Verkaaik Mattheus , Grote Roos , Meulendijks Nicole , Sastre Francesc , Weckhuysen Bert M. , Buskens Pascal 
Published: August 2019

AbstractThe interaction between plasmonic metal catalysts and visible light can be exploited to increase their catalytic activity. This activity increase results from the generation of hot charge carriers or hot surfaces, or a combination of both. We have studied the light‐induced Suzuki‐Miyaura cross‐coupling reaction of bromobenzene and m‐tolylboronic acid using Pd‐decorated Au nanorods as plasmonic catalyst in order to assess which physical effect dominates. Comparative experiments under laser illumination and in dark were performed, demonstrating that under the experimental conditions applied in our study the catalytic activity achieved upon illumination is dominantly based on the conversion of light to heat by the plasmonic catalyst. Pd leached from the catalyst also plays a significant role in the reaction mechanism.
On the application of a novel linear mixture model on laser‐induced breakdown spectroscopy: Implications for Mars
Authors: Konstantinidis Menelaos , Cote Kristen , Lalla Emmanuel A. , Zhang Guanlin , Daly Michael G. , Gao Xin , Dietrich Peter 
Published: August 2019

AbstractAs the exploration of Mars and other solar system bodies becomes more prevalent, the importance of accurate methods in chemical analyses has increased. The use of laser‐induced breakdown spectroscopy (LIBS) in such analyses requires that well understood and accurate statistical methods exist for appropriate interpretation of resulting spectra. Many multivariate techniques have been developed for the elemental quantification of LIBS; however, each still has its limitations. In an endeavor to improve upon existing methodologies, a new algorithm is proposed using the ChemCam preflight calibration dataset and a dataset from the characterization of a LIBS/Raman sensor prototype developed at York University. The algorithm which was developed in this work is a linear mixture model within a submodel clustering framework. The cross validation and test results of the model on both datasets were reported using various metrics for each element under consideration (root mean square error, relative standard deviation, and R2 value). The algorithm was subsequently compared with other well established chemometric models on both datasets, such as principal component regression, partial least square regression, and ordinary least squares regression. Further validation of the algorithm was achieved by comparing the results presented herein to previously published results on the ChemCam data. The samples in each dataset are highly representative of Martian geology, which, given the overwhelming success of the algorithm on both datasets, suggests that subsequent implementation of the proposed algorithm on larger databases may have significant implications for Martian geochemical analyses and for planetary exploration as a whole.
Executive antecedents of interfirm cooperation
Authors: Gur Furkan A. , Bendickson Joshua S. , Solomon Shelby J. 
Published: August 2019

AbstractMuch of the present research and theory on cooperation is devoid of the effects of the individual actors. Although previous research recognizes the vital role of key managers in regard to cooperation, there is limited research on executive‐related antecedents of interfirm cooperation. This manuscript extends our understanding of cooperative outcomes by theorizing how executive characteristics and social forces may impact an executive's cooperative behavior. We develop a model that encompasses executive personality, cooperative tendencies, cultural distance, trust, and justice perceptions in addition to their implications for interfirm cooperation outcomes. Specifically, we extend socio‐analytic theory to an interfirm context. Furthermore, we integrate theories of exchange and attraction to discuss how social forces moderate the relationship between cooperative tendencies and cooperative outcomes.
A Neuron‐Glia Co‐culture System for Studying Intercellular Lipid Transport
Authors: Ioannou Maria S. , Liu Zhe , Lippincott‐Schwartz Jennifer 
Published: August 2019

AbstractNeurons and glia operate in a highly coordinated fashion in the brain. Although glial cells have long been known to supply lipids to neurons via lipoprotein particles, new evidence reveals that lipid transport between neurons and glia is bidirectional. Here, we describe a co‐culture system to study transfer of lipids and lipid‐associated proteins from neurons to glia. The assay entails culturing neurons and glia on separate coverslips, pulsing the neurons with fluorescently labeled fatty acids, and then incubating the coverslips together. As astrocytes internalize and store neuron‐derived fatty acids in lipid droplets, analyzing the number, size, and fluorescence intensity of lipid droplets containing the fluorescent fatty acids provides an easy and quantifiable measure of fatty acid transport. © 2019 The Authors.
A multi‐dimensional index for privacy‐preserving queries in cloud computing
Authors: Xu Hui , Ding Xiaofeng , Jin Hai , Yu Qing 
Published: August 2019

SummaryAlthough cloud computing saves the cost of enterprises and individuals to manage data in various applications on public cloud servers, it also causes the problem of the leakage of critical personal information and sensitive data. Therefore, the issues about data privacy of the published personal information have become a challenging problem. Most of the existing methods focus on cryptography‐based techniques by encrypting the sensitive data before publishing. However, these techniques are either too computation expensive or only some authorized users can get access to the encrypted cloud data. The consequence is that the search response time is not satisfactory and the sharing extent of the cloud data is becoming limited. Motivated by this, we propose a perturbation‐based method to preserve the privacy of data in cloud. To accelerate the query processing without privacy breaches, a high‐efficiency multi‐dimensional index is built for answering range counting queries under differential privacy, which embeds privacy‐preserving R‐tree index in Content Addressable Network. Experimental results demonstrate that our methods not only protect data privacy in different degree, but also accelerate the query speed efficiently. Compared with the existing method Quad‐opt, our method provides about 20% better data utility under the same differential privacy principles.
Performance evaluation of single vs. batch of queries on GPUs
Authors: Gaioso Roussian , Gil‐Costa Veronica , Guardia Helio , Senger Hermes 
Published: August 2019

SummaryThe WAND processing strategy is a dynamic pruning algorithm designed for large scale Web search engines where fast response to queries is a critical service. The WAND is used to reduce the amount of computation by scoring only documents that may become part of the top‐k document results. In this paper, we present two parallel strategies for the WAND algorithm and compare their performance on GPUs. In our first strategy (named size‐based), the posting lists are evenly partitioned among thread blocks. Our second strategy (named range‐based) partitions the posting lists according to document identifier intervals; thus, partitions may have different sizes. We also propose three threshold sharing policies, named Local, Safe‐R, and Safe‐WR, which emulate the WAND algorithm global pruning technique. We evaluated our proposals with different amounts of work, from short to extra‐large queries, using single query processing and batch of queries. Results show that the size‐based strategy reports the highest speedups but at the cost of low quality of results. The range‐based algorithm retrievals the exact top‐k documents and maintains a good speedup. Moreover, both strategies are capable of scaling as the amount of work is increased. In addition, there is no significant difference in the performance of the three threshold sharing policies.
Efficient implementations of Bloom filter using block RAMs and DSP slices on the FPGA
Authors: Wada Takuma , Matsumura Naoki , Yasudo Ryota , Nakano Koji , Ito Yasuaki 
Published: August 2019

SummaryThis paper presents efficient FPGA implementations for the Bloom filter, in which a large set P of L‐byte patterns are registered beforehand. Our Bloom filter circuit performs the byte stream pattern test such that it receives an input byte stream t and outputs the bit stream in every clock cycle. Each bit of the output bit stream is 1 if an L‐byte sequence of t starting from the corresponding position is identical with one of the patterns in P. Our circuits use rolling hash functions to compute signatures of all patterns in P registered in Ultra RAMs of the Xilinx UltraScale+ FPGA VU9P. We present two types of implementations, DSP‐based implementation and RAM‐based implementation to compute rolling hash functions of L‐byte sequences using DSP slices and Block RAMs in the FPGA, respectively. The experimental results show that both DSP‐based and RAM‐based Bloom filter circuits for 4800K patterns of length 1024 can perform the byte stream pattern test for 1.1 Gps and 1.3 Gbps input byte streams, respectively, with false positive probability 10−12. Moreover, we can configure DSP‐based and RAM‐based Bloom filter circuits for 100K patterns to work for 54.9 Gbps and 62.2 Gbps input byte streams, respectively, with false positive probability 10−12.
Overexpression of Lin28a delays Xenopus metamorphosis and down‐regulates albumin independently of its translational regulation domain
Authors: Gundermann Daniel G. , Martínez Jimena , De Kervor Genevieve , González‐Pinto Karina , Larraín Juan , Faunes Fernando 
Published: August 2019

AbstractBackgroundLin28 regulates stem cell biology and developmental timing. At the molecular level Lin28 inhibits the biogenesis of the micro RNA let‐7 and directly controls the transcription and translation of several genes. In Xenopus, Lin28 overexpression delays metamorphosis and affects the expression of genes of the thyroid hormone (TH) axis. The TH carrier albumin, synthesized by the liver, is down‐regulated in limbs and tail after Lin28 overexpression. The molecular mechanisms underlying the interaction between Lin28, let‐7, and the hypothalamus–pituitary–thyroid gland (HPT) axis are unknown.ResultsWe found that precursor and mature forms of let‐7 increase during Xenopus metamorphosis. In the liver, lin28b is down‐regulated and albumin is up‐regulated during metamorphosis. Overexpression of a truncated form of Lin28a (Lin28aΔC), which has been shown not to interact with RNA helicase A to regulate translation, delays metamorphosis, indicating that the translational regulation domain is not required to inhibit the HPT axis. Importantly, both full length Lin28a and Lin28aΔC block the increase of albumin mRNA in the liver independently of changes in TH signaling.ConclusionsThese results suggest that Lin28 delays metamorphosis through regulation of let‐7 and that the decrease of the TH carrier albumin is one of the early changes after Lin28 overexpression.
High rates of primary production in structurally complex forests
Authors: Gough Christopher M. , Atkins Jeff W. , Fahey Robert T. , Hardiman Brady S. 
Published: August 2019

AbstractStructure–function relationships are central to many ecological paradigms. Chief among these is the linkage of net primary production (NPP) with species diversity and canopy structure. Using the National Ecological Observatory Network (NEON) as a subcontinental‐scale research platform, we examined how temperate‐forestNPPrelates to several measures of site‐level canopy structure and tree species diversity. Novel multidimensional canopy traits describing structural complexity, most notably canopy rugosity, were more strongly related to siteNPPthan were species diversity measures and other commonly characterized canopy structural features. The amount of variation in site‐levelNPPexplained by canopy rugosity alone was 83%, which was substantially greater than that explained individually by vegetation area index (31%) or Shannon's index of species diversity (30%). Forests that were more structurally complex, had higher vegetation‐area indices, or were more diverse absorbed more light and used light more efficiently to power biomass production, but these relationships were most strongly tied to structural complexity. Implications for ecosystem modeling and management are wide ranging, suggesting structural complexity traits are broad, mechanistically robust indicators ofNPPthat, in application, could improve the prediction and management of temperate forest carbon sequestration.