bluuebunny/crossref_metadata_2025_split huggingface dataset:
How to improve your metocean datasets
Authors: Quaeghebeur Erik , Zaaijer Michiel B. 
Published: July 2019

Abstract. We present an analysis of three metocean datasets of 10-minute statistics and our resulting recommendations to both producers and users of such datasets. Many of our recommendations are more generally of interest to all numerical measurement data producers. The datasets analyzed originate from offshore meteorological masts installed to support offshore wind farm planning and design: the Dutch OWEZ and MMIJ, and the German FINO 1. Our analysis shows that such datasets contain issues that users should look out for and whose prevalence can be reduced by producers. We also present expressions to derive uncertainty and bias values for the statistics from information typically available about sample uncertainty. We also observe that the format in which the data is disseminated is sub-optimal from the users' perspective and discuss how producers can create more immediately useful dataset files. Effectively, we advocate using an established binary format (HDF5 or netCDF4) instead of the typical text-based one (comma-separated values), as this allows for the inclusion of relevant metadata and the creation of significantly smaller directly accessible dataset files. Next to informing producers of the advantages of these formats, we also provide concrete pointers to their effective use. Our conclusion is that datasets such as the ones we analyzed can be improved substantially in usefulness and convenience with limited effort.
Política y autoficción performativa en Zonas de dolor, de Diamela Eltit
Authors: Torre-Espinosa Mario de la 
Published: July 2019

El presente artículo emplea el concepto de autoficción, creado por Serge Dubrovsky en los años setenta, para interpretar las implicaciones políticas que se derivan de la puesta en acción de la performancede Diamela Eltit Zonas de dolor I. La participación de la autora en estas performances, y su registro y edición posterior en formato video, ponen de manifiesto una clara intencionalidad de plasmar su pensamiento político a través de la acción estética, inseparables estos entre sí desde la perspectiva de Jacques Rancière. En estas propuestas el cuerpo es usado como campo de batalla, y así hay que entender el hecho de que se inflija heridas. A través del análisis del uso del cuerpo como arma política, y usando las obras The Lips of Thomas, de Marina Abramović, y Anfaegtelse, de Angélica Liddell, donde la sangre emanada de los cortes en el cuerpo se constituye también en un elemento estético central, se analizará el dispositivo empleado por Eltit para soliviantar las conciencias y revelarnos otra dimensionalidad en torno a la marginalidad, ya se trate esta de vagabundos o de burdeles.
O ensino de um gênero textual oral e a elaboração de uma ferramenta didática
Authors: Bueno Luzia , Bacan Zani Juliana 
Published: July 2019

: Este artigo tem por objetivo apresentar uma pesquisa de doutorado cuja finalidade foi elaborar uma ferramenta didática para o ensino do gênero comunicação oral em eventos científicos, compreendendo o seu trabalho e as implicações deste para o desenvolvimento de capacidades de linguagem dos alunos, contribuindo, desta forma, para o letramento acadêmico desses discentes. Os aportes teóricos que orientaram esse trabalho apoiam-se na perspectiva teórico metodológica do interacionismo sociodiscursivo (BRONCKART, 2006, 2008a, 2008b, 2009, 2013; SCHNEUWLY; DOLZ, 2004; MACHADO; ABREU-TARDELLI; CRISTOVÃO, 2009), nos estudos de didáticas das línguas (SCHNEUWLY; DOLZ, 2004), na metodologia da engenharia didática (DOLZ, 2016) e nos conceitos de gestos didáticos (SCHNEUWLY; DOLZ, 2009). Os resultados obtidos, de um ponto de vista macro, ajudaram, especialmente, apreender o funcionamento da sequência de ensino, analisada, assim, pela perspectiva do objeto de ensino e dos objetos efetivamente ensinados, revelando particularidades implícitas às práticas do professor. Nesse processo, a pesquisa se constituiu, de maneira dialética, validando a importância de o sistema didático de ensino estar sustentado no professor, aluno e no objeto do conhecimento, no caso desta pesquisa, o gênero “a comunicação oral em eventos científicos”.
The disappearing hand: vestibular stimulation does not improve hand localisation
Authors: Grabherr Luzia , Russek Leslie N. , Bellan Valeria , Shohag Mohammad , Camfferman Danny , Moseley G. Lorimer 
Published: July 2019

BackgroundBodily self-consciousness depends on the coherent integration of sensory information. In addition to visual and somatosensory information processing, vestibular contributions have been proposed and investigated. Vestibular information seems especially important for self-location, but remains difficult to study.MethodsThis randomised controlled experiment used the MIRAGE multisensory illusion box to induce a conflict between the visually- and proprioceptively-encoded position of one hand. Over time, the perceived location of the hand slowly shifts, due to the fact that proprioceptive input is progressively weighted more heavily than the visual input. We hypothesised that left cold caloric vestibular stimulation (CVS) augments this shift in hand localisation.ResultsThe results from 24 healthy participants do not support our hypothesis: CVS had no effect on the estimations with which the perceived position of the hand shifted from the visually- to the proprioceptively-encoded position. Participants were more likely to report that their hand was ‘no longer there’ after CVS. Taken together, neither the physical nor the subjective data provide evidence for vestibular enhanced self-location.
The effects of spatial and temporal replicate sampling on eDNA metabarcoding
Authors: Beentjes Kevin K. , Speksnijder Arjen G. C. L. , Schilthuizen Menno , Hoogeveen Marten , van der Hoorn Berry B. 
Published: July 2019

Background
The heterogeneous nature of environmental DNA (eDNA) and its effects on species detection and community composition estimates has been highlighted in several studies in the past decades. Mostly in the context of spatial distribution over large areas, in fewer occasions looking at spatial distribution within a single body of water. Temporal variation of eDNA, similarly, has mostly been studied as seasonality, observing changes over large periods of time, and often only for small groups of organisms such as fish and amphibians.

Methods
We analyzed and compared small-scale spatial and temporal variation by sampling eDNA from two small, isolated dune lakes for 20 consecutive weeks. Metabarcoding was performed on the samples using generic COI primers. Molecular operational taxonomic unit (MOTUs) were used to assess dissimilarities between spatial and temporal replicates.

Results
Our results show large differences between samples taken within one lake at one point in time, but also expose the large differences between temporal replicates, even those taken only 1 week apart. Furthermore, between-site dissimilarities showed a linear correlation with time frame, indicating that between-site differences will be inflated when samples are taken over a period of time. We also assessed the effects of PCR replicates and processing strategies on general patterns of dissimilarity between samples. While more inclusive PCR replicate strategies lead to higher richness estimations, dissimilarity patterns between samples did not significantly change.

Conclusions
We conclude that the dissimilarity of temporal replicates at a 1 week interval is comparable to that of spatial replicate samples. It increases, however, for larger time intervals, which suggests that population turnover effects can be stronger than community heterogeneity. Spatial replicates alone may not be enough for optimal recovery of taxonomic diversity, and cross-comparisons of different locations are susceptible to inflated dissimilarities when performed over larger time intervals. Many of the observed MOTUs could be classified as either phyto- or zooplankton, two groups that have gained traction in recent years as potential novel bio-indicator species. Our results, however, indicate that these groups might be susceptible to large community shifts in relatively short periods of time, highlighting the need to take temporal variations into consideration when assessing their usability as water quality indicators.
Fungal Organisms Associated with Post-harvest Rot of Frafra Potatoes [Solenostemon rotundifolius (Poir.)] in Bongo-Soe, Upper East Region, Ghana
Authors: Apuri S. , Kwoseh C. , Seweh E. A. , Tutu I. O. 
Published: July 2019

Aims: The study aims to identifying the microorganisms associated with post-harvest rot of frafra potatoes in Bongo-soe, Upper east region of Ghana.
Place and Duration of Study: Department of Horticulture and the Pathology laboratory of the Faculty of Agriculture, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana. The Solenostemon rotundifolius tubers were stored at the Horticulture Department laboratory whiles rot identification was carried out at the Pathology laboratory of the Faculty of Agriculture. The Tubers were stored from 2nd November, 2012 to 22nd March 2013.
Methodology: Four hundred (400) tubers of black cultivar and four hundred (400) tubers of a brown cultivar of Solenostemon rotundifolius tubers showing visible signs of rot during the storage were collected. Pieces of diseased tissues from the margin of the necrotic collected and immersed in 10% commercial bleach solution for sterilisation, for one minute. These were then blotted dry and plated on Potato Dextrose Agar PDA. The plates were sealed with a cellotape until growth occurred.
Results: The microorganisms identified to be responsible for causing rot in Solenostemon rotundifolius tubers were six in number. Colletotrichum gloeosporioides was identified to be responsible for 30.76% of rots observed, followed by Aspergillus niger, 23.07%, Curvularia lunata, 19.23%, Aspergillus flavus, 11.54%, Trichoderma sp and Penicillium sp both recorded 7.70% of rots observed. The percentage incidence of Aspergillus niger (15.38%), Curvularia lunata (11.54%) and Aspergillus flavus (7.69%) was higher in the black cultivar as compared with the brown cultivar which had percentage incidence of 7.69%, 7.69% and 3.85% respectively. Also, the percentage incidence of Colletotrichum gloeosporioides (15.38%) and Penicillium sp (3.85%) was the same in both the black and brown cultivars of Solenostemon rotundifolius tubers used in this study.
Conclusion: The activities of the damaging microorganisms can be reduced by controlling mechanical injury during harvesting, transportation and storage of Solenostemon rotundifolius tubers should be prevented or reduced because they pave the way for tuber infection by the rot causing microorganisms.
Quantitative Morphometric Analysis of the Adula Watershed, in Ahmednagar Maharashtra Using the ESRI- ArcGIS Tool
Authors: Mandale Varsha , Bansod Ravindra 
Published: July 2019

Remote sensing and geographic information system (GIS) are two of the most important tools used to evaluate the morphometric characteristics of watersheds, as morphometric analysis of river basins using conventional methods, is very time to consume, laborious and cumbersome. In this study, the morphometric characteristics of the Adula watershed were calculated using ESRI- ArcGIS. The areal extent of the Adula watershed varies between 19°32’40” N to 19°43’2” N latitude and 74°10’15” E to 74°48’18” E longitude. The topographic sheets obtained from the survey of India on a scale of 1:50000 and the SRTM (Spectral Radar Topographic Mission) Digital Elevation Model of 30 m resolution, were used for watershed delineation and deriving the linear (stream order, stream number, bifurcation ratio), aerial (basin area, basin perimeter, drainage density, form factor, stream frequency, and circulatory ratio), relief (height of outlet of watershed, basin relief, maximum height of watershed, total basin relief, absolute relief, relief ratio, ruggedness number) aspects. bifurcation ratio for varies from 3.0 to 8.33, indicating the elongated shape of the watershed. Drainage density factor values were 4.43 km/km2 indicating high drainage densities and 0.132 indicating an elongated basin with lower peaks respectively. Ruggedness number was 3.78 showing a dendritic and radial pattern with drainage texture. Therefore this morphometric analysis using geo-processing techniques employed in this study will assist in planning and decision making in the watershed development and management.
Predicting motor, cognitive & functional impairment in Parkinson's
Authors: Lo Christine , Arora Siddharth , Baig Fahd , Lawton Michael A. , El Mouden Claire , Barber Thomas R. , Ruffmann Claudio , Klein Johannes C. , Brown Peter , Ben‐Shlomo Yoav , de Vos Maarten , Hu Michele T. 
Published: July 2019

AbstractObjectiveWe recently demonstrated that 998 features derived from a simple 7‐minute smartphone test could distinguish between controls, people with Parkinson's and people with idiopathic Rapid Eye Movement sleep behavior disorder, with mean sensitivity/specificity values of 84.6‐91.9%. Here, we investigate whether the same smartphone features can be used to predict future clinically relevant outcomes in early Parkinson's.MethodsA total of 237 participants with Parkinson's (mean (SD) disease duration 3.5 (2.2) years) in the Oxford Discovery cohort performed smartphone tests in clinic and at home. Each test assessed voice, balance, gait, reaction time, dexterity, rest, and postural tremor. In addition, standard motor, cognitive and functional assessments and questionnaires were administered in clinic. Machine learning algorithms were trained to predict the onset of clinical outcomes provided at the next 18‐month follow‐up visit using baseline smartphone recordings alone. The accuracy of model predictions was assessed using 10‐fold and subject‐wise cross validation schemes.ResultsBaseline smartphone tests predicted the new onset of falls, freezing, postural instability, cognitive impairment, and functional impairment at 18 months. For all outcome predictions AUC values were greater than 0.90 for 10‐fold cross validation using all smartphone features. Using only the 30 most salient features, AUC values greater than 0.75 were obtained.InterpretationWe demonstrate the ability to predict key future clinical outcomes using a simple smartphone test. This work has the potential to introduce individualized predictions to routine care, helping to target interventions to those most likely to benefit, with the aim of improving their outcome.
Ultrasoft Silicone Gel as a Biomimetic Passivation Layer in Inkjet‐Printed 3D MEA Devices
Authors: Yamamoto Hideaki , Grob Leroy , Sumi Takuma , Oiwa Kazuhiro , Hirano‐Iwata Ayumi , Wolfrum Bernhard 
Published: July 2019

AbstractMultielectrode arrays (MEAs) are versatile tools that are used for chronic recording and stimulation of neural cells and tissues. Driven by the recent progress in understanding of how neuronal growth and function respond to scaffold stiffness, development of MEAs with a soft cell‐to‐device interface has gained importance not only for in vivo but also for in vitro applications. However, the passivation layer, which constitutes the majority of the cell–device interface, is typically prepared with stiff materials. Herein, a fabrication of an MEA device with an ultrasoft passivation layer is described, which takes advantage of inkjet printing and a polydimethylsiloxane (PDMS) gel with a stiffness comparable to that of the brain. The major challenge in using the PDMS gel is that it cannot be patterned to expose the sensing area of the electrode. This issue is resolved by printing 3D micropillars at the electrode tip. Primary cortical neurons are grown on the fabricated device, and effective stimulation of the culture confirms functional cell‐device coupling. The 3D MEA device with an ultrasoft interface provides a novel platform for investigating evoked activity and drug responses of living neuronal networks cultured in a biomimetic environment for both fundamental research and pharmaceutical applications.
Impact of Bonding on the Stacking Defects in Layered Chalcogenides
Authors: Mio Antonio M. , Konze Philipp M. , Meledin Alexander , Küpers Michael , Pohlmann Marc , Kaminski Marvin , Dronskowski Richard , Mayer Joachim , Wuttig Matthias 
Published: July 2019

AbstractPhase‐change materials for high‐density data storage traditionally exploit the amorphous‐to‐crystalline phase transition. A number of these compounds are organized in blocks, separated by van der Waals‐like gaps. Such layered chalcogenides are attracting interest due to their unique material properties and the possibility to change their properties upon local rearrangements at the gap, giving rise to novel applications. To better understand the behavior of layered chalcogenides, the connection between structural defects, physical properties, and the bonding situation is highlighted here using electron microscopy, X‐ray diffraction, and density functional theory. In particular, stacking defects in hexagonal Ge4Se3Te, GaSe, and Sb2Te3 are characterized experimentally, followed by an investigation of the influence of observed and hypothetical stacking defects on optical and electronic properties by theoretical means. Then, a connection between observed defects and the bonding situation in these materials is drawn and related to the presence of van der Waals and metavalent bonding in chalcogenides. Finally, additional experiments are performed to validate the conclusions for other metavalently bonded layered chalcogenides. Transmission electron microscopy provides a powerful tool for direct detection of defects and, when combined with diffraction experiments and ab initio theory, it facilitates the precise investigation of the bonding mechanisms in layered chalcogenides.
Bioinspired Self‐Propulsion of Water Droplets at the Convergence of Janus‐Textured Heated Substrates
Authors: Zhang Peipei , Peng Baoxu , Wang Jingming , Jiang Lei 
Published: July 2019

AbstractControlled propulsion of liquid droplets on a solid surface offers viable applications in fog harvesting, heat transfer, microfluidics, and microdevice technologies. A prerequisite for the propulsion of liquid droplets is to break the wetting symmetry of a droplet and contact‐line pinning on the surface by harnessing surface energy gradient. Here, a series of Janus‐textured substrates is constructed to investigate the self‐propulsion of Leidenfrost droplets. It is found that the self‐propulsion of droplets occurs only on two special Janus‐textured substrates. Those are nanostructured silicon substrate bounded by smooth silicon substrate and the nanowire‐decorated microstructured silicon substrate bounded by micropillars with smooth surfaces. The difference in roughness between the two sides of the Janus‐textured substrates creates various numbers and sizes of vapor bubbles. The vapor bubbles cause the droplets to become turbulent, and a pressure gradient is generated. The sufficiently large pressure gradient propels the Leidenfrost droplet to move directionally. The propulsion direction is always toward areas with low roughness.
Broadband Spintronic Terahertz Emitter with Magnetic‐Field Manipulated Polarizations
Authors: Kong Deyin , Wu Xiaojun , Wang Bo , Nie Tianxiao , Xiao Meng , Pandey Chandan , Gao Yang , Wen Lianggong , Zhao Weisheng , Ruan Cunjun , Miao Jungang , Li Yutong , Wang Li 
Published: July 2019

AbstractFlexible manipulation of terahertz wave polarizations during the generation process is very important for terahertz applications, especially for the next‐generation on‐chip functional terahertz sources. However, current terahertz emitters cannot satisfy such demand, hence calling for new mechanisms and conceptually new terahertz sources. Here an efficient and broadband terahertz source with magnetic‐field‐controlled flexible switching for the polarizations between linear and elliptical states in ferromagnetic heterostructures driven by femtosecond laser pulses is demonstrated. More importantly, the chirality, azimuthal angle, and ellipticity of the generated elliptical terahertz wave can be precisely manipulated by harnessing external magnetic fields via effectively tailoring the photoinduced spin currents. Such an ultrafast photomagnetic interaction‐based, magnetic‐field‐controlled, and broadband tunable solid‐state terahertz source integrated with polarization tunability functions not only provides the capability to reveal physical mechanisms of femtosecond spin dynamics, but also demonstrates the feasibility to realize novel on‐chip terahertz functional devices, boosting the potential applications for controlling elementary molecular rotations, phonon vibrations, spin precessions, high‐speed communications, and accelerating the development of ultrafast terahertz optospintronics.
Biocompatible, Injectable Anionic Hydrogels Based on Poly(Oligo Ethylene Glycol Monoacrylate‐co‐Acrylic Acid) for Protein Delivery
Authors: Wang Tengjiao , Jones Jake D. , Niyonshuti Isabelle I. , Agrawal Shilpi , Gundampati Ravi K. , Kumar Thallapuranam K. Suresh , Quinn Kyle P. , Chen Jingyi 
Published: July 2019

AbstractDevelopment of biocompatible hydrogels for sustained delivery of biological therapeutic agents is important for many regenerative medicine applications. In this study, a facile method is developed to synthesize injectable, anionic hydrogels based on poly(oligo ethylene glycol monoacrylate‐co‐acrylic acid) for protein controlled release. The synthesis of the copolymers is robust involving a single step of an aqueous free radical polymerization. These copolymers are then allowed to swell into the microporous injectable hydrogels. The covalent incorporation of the anionic group, acrylic acid, into the hydrogels increases the thermal stability and the viscosity of hydrogels due to the stronger intermolecular interactions in the copolymer network. These anionic groups also significantly enhance electrostatic interactions between the hydrogels and positively charged proteins, thus, rendering the hydrogels suitable for sustained release of the proteins under physiological conditions. An animal study shows these injectable hydrogels do not adversely affect wound healing. These findings warrant further investigation of these injectable hydrogels for their use in protein delivery for wound healing applications.
Asymmetric Synthesis of Fluoro‐MLN4924 as a Selective NEDD8‐Activating Enzyme (NAE) Inhibitor
Authors: Kim Hong‐Rae , Jarhad Dnyandev B. , Sahu Pramod K. , Sung Kisu , An Dayoung , Hyun Young Eum , Yu Jinha , Jeong Lak Shin 
Published: July 2019

AbstractBased on bioisosteric rationale, fluorinated analogues of MLN4924, which is a selective NEDD8‐activating enzyme inhibitor, were designed and their asymmetric syntheses were accomplished via stereoselective reduction, regioselective isopropylidene cleavage and diethylaminosulfur trifluoride (DAST) fluorination as key steps.
Mesoporous carbon supported ultrasmall palladium particles as highly active catalyst for Suzuki‐Miyaura reaction
Authors: Enneiymy Mohamed , Le Drian Claude , Ghimbeu Camelia Matei , Becht Jean‐Michel 
Published: July 2019

A fast and efficient eco‐friendly two‐step preparation of a palladium‐containing mesoporous carbon catalyst (C1) from green and readily available carbon precursors (phloroglucinol and glyoxal), a porogen template (pluronic F‐127) and PdCl2 is described. Catalyst C1 contains ultra‐small Pd nanoparticles (1.2 nm) uniformly dispersed in the carbon network and shows an outstanding activity for Suzuki‐Miyaura reactions in pure water: extremely low amounts of palladium (10 μequiv. in most cases) are sufficient to afford almost palladium‐free products (containing <0.25 ppm of precious metal without further purification steps).