bluuebunny/crossref_metadata_2025_split huggingface dataset:
Uncertainty and Resolution of Speckle Photography on Micro Samples
Authors: Alexe Gabriela , Tausendfreund Andreas , Stöbener Dirk , Langstädtler Lasse , Herrmann Marius , Schenck Christian , Fischer Andreas 
Published: March 2020

AbstractThe efficient development of new materials with defined properties requires fast methods of testing low volumes of material, such as a high-throughput investigation of spherical metallic micro samples with varying compositions and structuring treatments. A classical material testing method for macro samples, the tensile test cannot be employed for analyzing the mechanical properties of spherical samples with diameters below 1 mm since there are currently no methods for holding and stretching them. A combination between the incremental electrohydraulic extrusion as stress actuation unit and the speckle photography as strain measuring method is presented for obtaining the required mechanical characteristics. Positive longitudinal strain is generated at stepwise extrusion through < 1 mm wide forming channels using a liquid punch and the deformation is observed in situ after each forming step at the interface between the micro sample and a transparent window integrated into the forming die. The occurring local strain fields with a lateral extension down to 100 µm and high gradients require displacement measurements with high lateral resolution over a large range of local dislocations between 0.1 and > 10 µm. It is unknown, whether the speckle strain measuring method is able to provide the necessary low uncertainty for the required resolution in the whole measuring range. Therefore, theoretical and experimental investigations of the deformation measurability using the speckle correlation method are presented, showing that local displacements up to 10 µm can be measured with a spatial resolution between 3 and 10 µm depending on the displacement size. The dominant effect influencing the measurement uncertainty for displacements at this high spatial resolution is the speckle noise, resulting into measurement uncertainties of less than 100 nm. Hence, speckle photography is shown to be applicable for tensile test on micro samples.
Evaluation of Emergency Medical Team Coordination Following the 2015 Nepal Earthquake
Authors: Takada Yosuke , Otomo Yasuhiro , Karki Khem Bahadur 
Published: March 2020

ABSTRACTObjectives:After the Nepal earthquake in 2015, for the first time, the Emergency Medical Team Coordination Cell (EMTCC) was activated. This study aims to evaluate the emergency medical team (EMT) coordination in the aftermath of the Nepal earthquake in 2015.Methods:This is a retrospective study that (a) describes the coordination process in Nepal, and (b) reviews and analyzes the EMT database in Nepal to classify the EMTs based on the World Health Organization (WHO) EMT classification, an online survey for EMT coordination, and the Geographic Information System-analyzed EMT distribution.Results:We recorded 150 EMTs, which included 29 Type 1-Mobile, 71 Type 1-Fixed, 22 Type 2, 1 Type 3, and 27 specialist cell recorded EMTs including the military team. The EMTs were allocated based on the number of casualties in that area. The Type 1 EMTs were deployed around Type 2 EMTs.Conclusions:The EMT Classification is useful for the effective posting of EMTs. However, the method of onsite multi registration has room for improvement. The WHO should provide an opportunity for EMTCC training for better coordination of disasters.
Biometric study of late Oligocene larger benthic Foraminifera (Lepidocyclinidae and Nummulitidae) from the Qom Formation, Central Iran (Tajar-Kuh section)
Authors: Akbar-Baskalayeh Narges , Less György , Ghasemi-Nejad Ebrahim , Yazdi-Moghadam Mohsen , Pignatti Johannes 
Published: March 2020

AbstractThe Oligocene strata of the Qom Formation from the Tajar-Kuh section, Central Iran, are rich in various Larger Benthic Foraminifera (LBF). Morphometric studies of the internal features of the LBF tests were carried out based on matrix-free specimens from seven samples. The LBF assemblage studied in 24 populations mainly contains representatives of two nummulitid (the reticulateNummulites bormidiensisTellini, 1888, only in the lower three samples, and the radiateNummulites kecskemetiiLess, 1991 in all samples) and of two lepidocyclinid lineages. Of the latter,Nephrolepidina praemarginata(R. Douvillé, 1908) occurs in all the samples, whereasEulepidina formosoidesH. Douvillé, 1925 is present in the lower six samples. In the upper sample, the slightly more advancedEulepidinaex. interc.formosoidesH. Douvillé, 1925 etdilatata(Michelotti, 1861) is recorded. Due to the very similar taxonomic composition of the Tajar-Kuh section with their coeval faunas of the Mediterranean, the age was evaluated in the frame of the Western Tethyan Oligo-Miocene shallow benthic zonation (SBZ). Although the presence ofE. formosoidessuggests late Rupelian (SBZ 22A Zone) age, the occurrence ofHeterostegina assilinoides,N. kecskemetii,N. bormidiensis, andPlanolinderinasp. preferably represents the SBZ 22B Zone of the early Chattian. Based on the obtained results, at least the lower six samples can indicate the very basal part of the Chattian. More advancedEulepidinafrom the uppermost sample suggests a slightly younger but still early Chattian age.
Climatic changes cause synchronous population dynamics and adaptive strategies among coastal hunter-gatherers in Holocene northern Europe
Authors: Jørgensen Erlend Kirkeng , Pesonen Petro , Tallavaara Miikka 
Published: March 2020

AbstractSynchronized demographic and behavioral patterns among distinct populations is a well-known, natural phenomenon. Intriguingly, similar patterns of synchrony occur among prehistoric human populations. However, the drivers of synchronous human ecodynamics are not well understood. Addressing this issue, we review the role of environmental variability in causing human demographic and adaptive responses. As a case study, we explore human ecodynamics of coastal hunter-gatherers in Holocene northern Europe, comparing population, economic, and environmental dynamics in two separate areas (northern Norway and western Finland). Population trends are reconstructed using temporal frequency distributions of radiocarbon-dated and shoreline-dated archaeological sites. These are correlated to regional environmental proxies and proxies for maritime resource use. The results demonstrate remarkably synchronous patterns across population trajectories, marine resource exploitation, settlement pattern, and technological responses. Crucially, the population dynamics strongly correspond to significant environmental changes. We evaluate competing hypotheses and suggest that the synchrony stems from similar responses to shared environmental variability. We take this to be a prehistoric human example of the “Moran effect,” positing similar responses of geographically distinct populations to shared environmental drivers. The results imply that intensified economies and social interaction networks have limited impact on long-term hunter-gatherer population trajectories beyond what is already proscribed by environmental drivers.
ON -UNFAVOURABLE SPACES
Authors: WANG HANFENG , HE WEI , ZHANG JING 
Published: March 2020

To study when a paratopological group becomes a topological group, Arhangel’skii et al. [‘Topological games and topologies on groups’, Math. Maced. 8 (2010), 1–19] introduced the class of $(\,\unicode[STIX]{x1D6FD},G_{\unicode[STIX]{x1D6F1}})$-unfavourable spaces. We show that every $\unicode[STIX]{x1D707}$-complete (or normal) $(\,\unicode[STIX]{x1D6FD},G_{\unicode[STIX]{x1D6F1}})$-unfavourable semitopological group is a topological group. We prove that the product of a $(\,\unicode[STIX]{x1D6FD},G_{\unicode[STIX]{x1D6F1}})$-unfavourable space and a strongly Fréchet $(\unicode[STIX]{x1D6FC},G_{\unicode[STIX]{x1D6F1}})$-favourable space is $(\,\unicode[STIX]{x1D6FD},G_{\unicode[STIX]{x1D6F1}})$-unfavourable. We also show that continuous closed irreducible mappings preserve the $(\,\unicode[STIX]{x1D6FD},G_{\unicode[STIX]{x1D6F1}})$-unfavourableness in both directions.
Comparison between type A and type B early adiposity rebound in predicting overweight and obesity in children: a longitudinal study
Authors: Roche Johanna , Quinart Sylvain , Thivel David , Pasteur Stéphanie , Mauny Frédéric , Mougin Fabienne , Godogo Sandrine , Rose Mélaine , Marchal Florence , Bertrand Anne-Marie , Puyraveau Marc , Nègre Véronique 
Published: March 2020

AbstractEarly adiposity rebound (EAR) predicts paediatric overweight/obesity, but current approaches do not consider both the starting point of EAR and the BMI trajectory. We compared the clinical characteristics at birth, age 3–5 and 6–8 years of children, according to the EAR and to its type (type A/type B-EAR). We assessed the childrenʼs odds of being classified as overweight/obese at age 6–8 years, according to the type of EAR as defined at age 3–5 years. As part of this two-wave observational study, 1055 children were recruited and examined at age 3–5 years. Antenatal and postnatal information was collected through interviews with parents, and weight and height from the health records. Type A and type B-EAR were defined in wave 1 according to the BMI nadir and the variation of BMIz-score between the starting point of the adiposity rebound and the last point on the curve. At 6–8 years (wave 2), 867 children were followed up; 426 (40·4 %) children demonstrated EAR. Among them, 172 had type A-EAR, higher rates of parental obesity (P< 0·05) and greater birth weight compared with other children (P< 0·001). Odds for overweight/obesity at 6–8 years, when adjusting for antenatal and postnatal factors, was 21·35 (95 % CI 10·94, 41·66) in type A-EAR children and not significant in type B-EAR children (OR 1·76; 95 % CI 0·84, 3·68) compared with children without EAR. Classification of EAR into two subtypes provides physicians with a reliable approach to identify children at risk for overweight/obesity before the age of 5 years.
Post-rhinoplasty outcomes in an Indian population assessed using the FACE-Q appraisal scales: a prospective observational study
Authors: Soni K , Patro S K , Aneja J , Kaushal D , Goyal A , Shakrawal N 
Published: March 2020

AbstractObjectivesThe primary goal of rhinoplasty is patient satisfaction and improved quality of life. The present study was conducted to assess patient satisfaction with face and nose appearance, and quality of life after rhinoplasty.MethodsPatients presenting for rhinoplasty completed the FACE-Q survey. This is a new instrument that measures patient-reported outcomes in those undergoing aesthetic procedures. The FACE-Q scales include satisfaction with facial appearance overall, satisfaction with the nose, psychological well-being, psychosocial distress and social function.ResultsSixty-five patients completed the FACE-Q at pre-operative and at post-operative follow-up visits. Post-operative scores increased significantly in terms of: satisfaction with facial appearance (p < 0.0001, t = 15.639, degrees of freedom = 64); social function (p < 0.0001, t = 12.208, degrees of freedom = 64); psychosocial distress (p < 0.0001, t = 13.864, degrees of freedom = 64); psychological function (p < 0.0001, t = 12.681, degrees of freedom = 64); and satisfaction with nose (p < 0.0001, t = 16.421, degrees of freedom = 64). Most patients reported more than 79 per cent satisfaction with the post-operative outcome.ConclusionThe FACE-Q is an adequate instrument for determining successful aesthetic surgery based on patient satisfaction.
Mining voids: Extraction and emotion at the Australian coal frontier
Authors: Askland Hedda Haugen 
Published: March 2020

Abstract
Wollar is a small village located in the Mid-Western Region in New South Wales, Australia. Geographically removed, climatically different and culturally distinct from the Arctic, it might seem as a distant case for the exploration of Arctic Uchranotopias and resource extraction; the topic of this Special Issue. Yet, the affective and temporal dimensions of mining are not necessarily restricted to distinct regions, and there are theoretical opportunities for cooperative analysis across diverse regions. By bringing forward this case study, I aim to illustrate how the concepts of mining emotions and Uchranotopia have applicability beyond the polar region and how a broader theory of mining emotions may be advanced. Through the notion of “mining voids,” I investigate how discourses of extraction as prosperity clash with lived experiences at the coal face. Mining voids—both present and future—have become markers for physical and social landscapes and, as a metaphor, it embeds the contradiction between utopian narratives of a coal-sponsored future and dystopian imaginings at the coal face. Through analysis of the discourses of mining voids and how, as the voids materialise, emotions are mined, I will tie this case study to the debate of Arctic resource extraction and community making, affect and temporality.
Evaluation of electron temperature and electron density of laser-ablated Zr plasma by Langmuir probe characterization and its correlation with surface modifications
Authors: Irfan Zulaikha , Bashir Shazia , Butt Shariqa Hassan , Hayat Asma , Ayub Rana , Mahmood Khaliq , Akram Mahreen , Batool Amna 
Published: March 2020

AbstractThe plasma parameters of laser-ablated Zirconium (Zr) using a Langmuir probe technique have been investigated by employing a Q-switched Nd:YAG laser (532 nm, 6 ns) at various irradiances ranging from 8.6 to 15.5 GW/cm2. All the measurements have been performed under an ultra-high vacuum condition while keeping the probe at a fixed distance of 4 mm from the target. By varying the biasing voltages from 1 to 75 V, the corresponding values of electric currents are measured by the probe on the oscilloscope. Laser-induced Zr plasma parameters such as electron temperature, electron number density, plasma potential, Debye length, and thermal velocity have been evaluated from I–V characteristic curves of Langmuir probe data. It is found that both the electron temperature and thermal velocity of Zr plasma reveal an increasing trend from 18 to 41 eV and 2.8 × 108 to 4.3 × 108 cm/s, respectively, with increasing laser irradiance which is attributed to more energy deposition and enhanced ablation rate. However, the electron number density of Zr plasma exhibits a non-significant increase from 6.5 × 1014 to 6.7 × 1014 cm−3 with increasing irradiance from 8.6 to 10.9 GW/cm2. A further increase in irradiance from 12 to 15.5 GW/cm2 causes a reduction in the number density of Zr plasma from 6.1 × 1014 to 5.6 × 1014 cm−3 which is attributed to the formation of thick sheath, ambipolar electric field, and laser-supported detonation waves (Shock front). Scanning electron microscope analysis has been performed to reveal the surface morphology of irradiated Zr. It reveals the formation of cracks, ridges, cones, and grains. It was observed at high irradiances the ridges are vanished, whereas cones and cracks are dominant features. By controlling plasma parameters, surface structuring of materials can be controlled, which has a vast range of applications in the industry and medicine.
Two polarised K3 surfaces associated to the same cubic fourfold
Authors: BRAKKEE EMMA 
Published: March 2020

AbstractFor infinitely many d, Hassett showed that special cubic fourfolds of discriminant d are related to polarised K3 surfaces of degree d via their Hodge structures. For half of the d, each associated K3 surface (S, L) canonically yields another one, (Sτ, Lτ). We prove that Sτ is isomorphic to the moduli space of stable coherent sheaves on S with Mukai vector (3, L, d/6). We also explain for which d the Hilbert schemes Hilbn (S) and Hilbn (Sτ) are birational.
Remote characterization of photosynthetic communities in the Fryxell basin of Taylor Valley, Antarctica
Authors: Salvatore Mark R. , Borges Schuyler R. , Barrett John E. , Sokol Eric R. , Stanish Lee F. , Power Sarah N. , Morin Paul 
Published: March 2020

AbstractWe investigate the spatial distribution, spectral properties and temporal variability of primary producers (e.g. communities of microbial mats and mosses) throughout the Fryxell basin of Taylor Valley, Antarctica, using high-resolution multispectral remote-sensing data. Our results suggest that photosynthetic communities can be readily detected throughout the Fryxell basin based on their unique near-infrared spectral signatures. Observed intra- and inter-annual variability in spectral signatures are consistent with short-term variations in mat distribution, hydration and photosynthetic activity. Spectral unmixing is also implemented in order to estimate mat abundance, with the most densely vegetated regions observed from orbit correlating spatially with some of the most productive regions of the Fryxell basin. Our work establishes remote sensing as a valuable tool in the study of these ecological communities in the McMurdo Dry Valleys and demonstrates how future scientific investigations and the management of specially protected areas could benefit from these tools and techniques.
Nutraceutical support in heart failure: a position paper of the International Lipid Expert Panel (ILEP)
Authors: Cicero Arrigo F. G. , Colletti Alessandro , von Haehling Stephan , Vinereanu Dragos , Bielecka-Dabrowa Agata , Sahebkar Amirhossein , Toth Peter P. , Reiner Željko , Wong Nathan D. , Mikhailidis Dimitri P. , Ferri Claudio , Banach Maciej 
Published: March 2020

AbstractHeart failure (HF) is a complex clinical syndrome that represents a major cause of morbidity and mortality in Western countries. Several nutraceuticals have shown interesting clinical results in HF prevention as well as in the treatment of the early stages of the disease, alone or in combination with pharmacological therapy. The aim of the present expert opinion position paper is to summarise the available clinical evidence on the role of phytochemicals in HF prevention and/or treatment that might be considered in those patients not treated optimally as well as in those with low therapy adherence. The level of evidence and the strength of recommendation of particular HF treatment options were weighed up and graded according to predefined scales. A systematic search strategy was developed to identify trials in PubMed (January 1970 to June 2019). The terms ‘nutraceuticals’, ‘dietary supplements’, ‘herbal drug’ and ‘heart failure’ or ‘left verntricular dysfunction’ were used in the literature search. The experts discussed and agreed on the recommendation levels. Available clinical trials reported that the intake of some nutraceuticals (hawthorn, coenzyme Q10,l-carnitine,d-ribose, carnosine, vitamin D, probiotics,n-3 PUFA and beet nitrates) might be associated with improvements in self-perceived quality of life and/or functional parameters such as left ventricular ejection fraction, stroke volume and cardiac output in HF patients, with minimal or no side effects. Those benefits tended to be greater in earlier HF stages. Available clinical evidence supports the usefulness of supplementation with some nutraceuticals to improve HF management in addition to evidence-based pharmacological therapy.
The conservation status of the Galapagos MartinProgne modesta: Assessment of historical records and results of recent surveys
Authors: ANCHUNDIA DAVID , FESSL BIRGIT 
Published: March 2020

SummaryThe endemic Galapagos MartinProgne modestais a rare species. Population sizes in the past are unknown, but the few reports available suggest that it has become rarer in some sites. To obtain a better understanding of its population status, a simultaneous survey was conducted in 2017 around the coastline of 14 islands and 23 islets resulting in sightings of only 26 individuals. A simultaneous survey on Sierra Negra volcano on Isabela Island added five more individuals. However, observations from early expeditions and expeditions since 2015 have shown that the volcanoes of Isabela Island are important feeding areas and probable breeding areas for the Galapagos Martin, but these were largely excluded from the survey in 2017 due to logistical reasons. Historical and recent nesting sites include Tagus Cove on Isabela Island and Daphne Major Island. During our 2017 count, three possible new nesting sites were discovered: Daphne Minor, Santiago and a small crater on Punta Cristóbal on southwestern Isabela Island. From 2015 to 2018, 15 nests were also observed on the cliff in Tagus Cove. Two accessible nests were collected and revealed the first records ofPhilornis downsiin Galapagos Martin nests. The impact of parasitism byP. downsiis unknown but potentially severe. Given the lack of general knowledge about the biology of this species and its apparent low population sizes, further studies are urgently needed.
Syntax-ignorant N-gram embeddings for dialectal Arabic sentiment analysis
Authors: Mulki Hala , Haddad Hatem , Gridach Mourad , Babaoğlu Ismail 
Published: March 2020

AbstractArabic sentiment analysis models have recently employed compositional paragraph or sentence embedding features to represent the informal Arabic dialectal content. These embeddings are mostly composed via ordered, syntax-aware composition functions and learned within deep neural network architectures. With the differences in the syntactic structure and words’ order among the Arabic dialects, a sentiment analysis system developed for one dialect might not be efficient for the others. Here we present syntax-ignorant, sentiment-specific n-gram embeddings for sentiment analysis of several Arabic dialects. The novelty of the proposed model is illustrated through its features and architecture. In the proposed model, the sentiment is expressed by embeddings, composed via the unordered additive composition function and learned within a shallow neural architecture. To evaluate the generated embeddings, they were compared with the state-of-the art word/paragraph embeddings. This involved investigating their efficiency, as expressive sentiment features, based on the visualisation maps constructed for our n-gram embeddings and word2vec/doc2vec. In addition, using several Eastern/Western Arabic datasets of single-dialect and multi-dialectal contents, the ability of our embeddings to recognise the sentiment was investigated against word/paragraph embeddings-based models. This comparison was performed within both shallow and deep neural network architectures and with two unordered composition functions employed. The results revealed that the introduced syntax-ignorant embeddings could represent single and combinations of different dialects efficiently, as our shallow sentiment analysis model, trained with the proposed n-gram embeddings, could outperform the word2vec/doc2vec models and rival deep neural architectures consuming, remarkably, less training time.
High-Efficiency Three-Dimensional Visualization of Complex Microstructures via Multidimensional STEM Acquisition and Reconstruction
Authors: Field Kevin G. , Eftink Benjamin P. , Parish Chad M. , Maloy Stuart A. 
Published: March 2020

AbstractComplex material systems in which microstructure and microchemistry are nonuniformly dispersed require three-dimensional (3D) rendering(s) to provide an accurate determination of the physio-chemical nature of the system. Current scanning transmission electron microscope (STEM)-based tomography techniques enable 3D visualization but can be time-consuming, so only select systems or regions are analyzed in this manner. Here, it is presented that through high-efficiency multidimensional STEM acquisition and reconstruction, complex point cloud-like microstructural features can quickly and effectively be reconstructed in 3D. The proposed set of techniques is demonstrated, analyzed, and verified for a high-chromium steel with heterogeneously situated features induced using high-energy neutron bombardment.