bluuebunny/crossref_metadata_2025_split huggingface dataset:
Global Texture Mapping for Dynamic Objects
Authors: Kim Jungeon , Kim Hyomin , Park Jaesik , Lee Seungyong 
Published: November 2019

AbstractWe propose a novel framework to generate a global texture atlas for a deforming geometry. Our approach distinguishes from prior arts in two aspects. First, instead of generating a texture map for each timestamp to color a dynamic scene, our framework reconstructs a global texture atlas that can be consistently mapped to a deforming object. Second, our approach is based on a single RGB‐D camera, without the need of a multiple‐camera setup surrounding a scene. In our framework, the input is a 3D template model with an RGB‐D image sequence, and geometric warping fields are found using a state‐of‐the‐art non‐rigid registration method [GXW*15] to align the template mesh to noisy and incomplete input depth images. With these warping fields, our multi‐scale approach for texture coordinate optimization generates a sharp and clear texture atlas that is consistent with multiple color observations over time. Our approach is accelerated by graphical hardware and provides a handy configuration to capture a dynamic geometry along with a clean texture atlas. We demonstrate our approach with practical scenarios, particularly human performance capture. We also show that our approach is resilient on misalignment issues caused by imperfect estimation of warping fields and inaccurate camera parameters.
Anisotropic Surface Remeshing without Obtuse Angles
Authors: Xu Qun‐Ce , Yan Dong‐Ming , Li Wenbin , Yang Yong‐Liang 
Published: November 2019

AbstractWe present a novel anisotropic surface remeshing method that can efficiently eliminate obtuse angles. Unlike previous work that can only suppress obtuse angles with expensive resampling and Lloyd‐type iterations, our method relies on a simple yet efficient connectivity and geometry refinement, which can not only remove all the obtuse angles, but also preserves the original mesh connectivity as much as possible. Our method can be directly used as a post‐processing step for anisotropic meshes generated from existing algorithms to improve mesh quality. We evaluate our method by testing on a variety of meshes with different geometry and topology, and comparing with representative prior work. The results demonstrate the effectiveness and efficiency of our approach.
Context‐Aware Mixed Reality: A Learning‐Based Framework for Semantic‐Level Interaction
Authors: Chen L. , Tang W. , John N. W. , Wan T. R. , Zhang J. J. 
Published: November 2019

AbstractMixed reality (MR) is a powerful interactive technology for new types of user experience. We present a semantic‐based interactive MR framework that is beyond current geometry‐based approaches, offering a step change in generating high‐level context‐aware interactions. Our key insight is that by building semantic understanding in MR, we can develop a system that not only greatly enhances user experience through object‐specific behaviours, but also it paves the way for solving complex interaction design challenges. In this paper, our proposed framework generates semantic properties of the real‐world environment through a dense scene reconstruction and deep image understanding scheme. We demonstrate our approach by developing a material‐aware prototype system for context‐aware physical interactions between the real and virtual objects. Quantitative and qualitative evaluation results show that the framework delivers accurate and consistent semantic information in an interactive MR environment, providing effective real‐time semantic‐level interactions.
A steganographic method based on optimized audio embedding technique for secure data communication in the internet of things
Authors: S Anguraj , S P Shantharajah , J Jeba Emilyn 
Published: November 2019

AbstractThe rapid growth of the internet and the internet of things (IoT) refers to the next phase of information revolution whose context involves billions of smart devices and sensors interconnected to facilitate speedy information and data exchange under soft real‐time constraints. Digital information revolution has caused significant changes in the data communication. This data communication may require private, secure, and sometimes malicious communication. Competent secrecy can be accomplished by applying novel and inventive audio steganography. This article focuses on the secret message followed by shuffled embedded bit substitution in original audio stream by adopting optimized audio embedding technique (OAET) from the technological observation. To hide the information in the deeper layer of the audio stream, this method uses a new elevated bit range least significant bit (LSB) audio steganography technique that decreases distortion and improves the robustness of the embedded audio stream. The proposed technique proves that the perceptual quality of audio steganography is better than the previous standard LSB technique. Experiment results proved that the cladding of the OAET provides high‐level security to the universal cyber data. The interpretation of results shows that embedding data in audio enhances the level of security when used as IoT smart speakers, where the attackers could not distinguish between the original audio and the embedded audio streams.
‘How Could the Dinosaurs Be So Close to the Future?’: How Natural History Museum Educators Tackle Deep Time
Authors: Hecht Marijke , Knutson Karen , Crowley Kevin , Lyon Mandela , McShea Patrick , Giarratani Lauren 
Published: November 2019

AbstractNatural history museums play an important role in engaging the public in critical conversations about science and society. However, understanding complex concepts such as the Anthropocene requires thinking at large spatial and temporal scales. This challenge is at the forefront of a research‐practice partnership between the Carnegie Museum of Natural History (Museum) and the University of Pittsburgh Center for Learning in Out‐of‐School Environments (UPCLOSE). Together we designed a tool to help museum educators engage visitors in conceptualizing and connecting deep time with pressing environmental concerns. We observed educators using the tool in two settings: summer camp and on the Museum floor. We then interviewed educators to understand how they frame learning goals for understanding deep time and how their strategies support learner connections to the Anthropocene. While the tool was generally well received by educators, our observations and interviews also revealed two fundamental tensions. One tension was in pedagogical approaches – either inquiry or transmission – and the other was in learning goals – either wonder or relativity. Going forward, the Museum plans to use the tool both for exploration of deep time and as a professional development tool for Museum educators to better balance their use of these different approaches.
Rethinking service design for youth with mental health needs: The development of the Youth Wellness Centre, St. Joseph's Healthcare Hamilton
Authors: Wang Alyssa , Tobon Juliana I. , Bieling Peter , Jeffs Lisa , Colvin Eamon , Zipursky Robert B. 
Published: November 2019

AbstractAimThis article describes the development and design of the Youth Wellness Centre (YWC), an innovative, youth‐friendly centre providing mental health and addiction services for emerging adults aged 17 to 25 in Hamilton, Canada. We also report on demographic and clinical characteristics of clients to evaluate how the YWC is serving populations at increased risk of developing mental disorders.MethodsData were extracted from clinic databases for 1520 youth at the YWC between March 2015 and 2018 to report on demographic characteristics, clinical profiles, primary presenting problems, service use and overall satisfaction with services.ResultsMarginalized groups, particularly street‐involved individuals and LGBTQ+ youth, are highly represented at the YWC, keeping with the centre's mandate of reaching at‐risk populations. Youth at the YWC carry significant mental health burdens, with 80.8% having a history of suicidal ideation and 32.8% having a history of a substance use disorder. The primary route of referral is self‐referral and the number of new clients has increased by nearly 20% in the first 3 years of operations. Overall satisfaction with the centre is on par with or slightly above provincial averages.ConclusionsThe YWC was developed to meet the mental health needs of transition‐aged youth in Hamilton by providing early intervention, system navigation and transition services. The success of the YWC in reaching high‐risk youth is demonstrated by the significant proportion of clients reporting demographic and clinical risk factors associated with increased risk for development of mental disorders. The increasing referrals to the YWC highlight the ongoing need for similar services.
Phenology responses of temperate butterflies to latitude depend on ecological traits
Authors: Faltýnek Fric Zdeněk , Rindoš Michal , Konvička Martin 
Published: November 2019

AbstractGlobal change influences species’ seasonal occurrence, or phenology. In cold‐adapted insects, the activity is expected to start earlier with a warming climate, but contradictory evidence exists, and the reactions may be linked to species‐specific traits. Using data from the GBIF database, we selected 105 single‐brooded Holarctic butterflies inhabiting broad latitudinal ranges. We regressed patterns of an adult flight against latitudes of the records, controlling for altitude and year effects. Species with delayed flight periods towards the high latitudes, or stable flight periods across latitudes, prevailed over those that advanced their flight towards the high latitudes. The responses corresponded with the species’ seasonality (flight of early season species was delayed and flight of summer species was advanced at high latitudes) and oceanic vs. continental climatic niches (delays in oceanic, stability in continental species). Future restructuring of butterfly seasonal patterns in high latitudes will reflect climatic niches, and hence the evolutionary history of participating species.
Comparing the efficacy, exposure, and cost of clinical trial analysis methods
Authors: Oliveira Andreas , Romero Juan M. , Goldenholz Daniel M. 
Published: November 2019

AbstractThis study aimed to compare three commonly used analysis methods for clinical trials in epilepsy in terms of statistical efficiency, nonefficacious exposure, and cost. A realistic seizure diary simulator was employed to produce 102 000 trials, which were analyzed by the 50%‐responder rate method (RR50), median percentage change (MPC), and time to prerandomization (TTP). Half the trials compared a placebo to a drug that was 20% better, and the other half compared two placebos. The former were used to calculate statistical power; the latter were used for type 1 error rates. Based on the number of patients needed to achieve 90% power, expected number of patient‐days of nonefficacious exposures and expected cost were calculated for each method. MPC demonstrated the highest efficacy, lowest exposure, and lowest cost. RR50 demonstrated the lowest efficacy, highest exposure, and highest cost. Costs were: MPC $1 295 000, TTP $1 315 720, and RR50 $2 331 000. Selecting an optimal analysis method for a primary outcome in an epilepsy trial can have consequences in terms of nonefficacious exposure and cost. This study provides evidence supporting the use of MPC (preferred) or TTP, and evidence suggesting that RR50 would incur high costs and excess exposures.
The hidden diversity of the potato cyst nematode Globodera pallida in the south of Peru
Authors: Thevenoux Romain , Folcher Laurent , Esquibet Magali , Fouville Didier , Montarry Josselin , Grenier Eric 
Published: November 2019

AbstractOur knowledge of the diversity of potato cyst nematodes in their native areas still remains patchy and should be improved. A previous study based on 42 Peruvian Globodera pallida populations revealed a clear south to north phylogeographic pattern, with five well‐supported clades and maximum diversity observed in the south of Peru. In order to investigate this phylogeographic pattern more closely, we genotyped a larger collection of Peruvian populations using both cathepsin L gene sequence data and a new set of 13 microsatellite loci. Using different genetic analyses (STRUCTURE, DAPC), we consistently obtained the same results that led to similar conclusions: the presence of a larger genetic diversity than previously known suggesting the presence of cryptic species in the south of Peru. These investigations also allowed us to clarify the geographic borders of the previously described G. pallida genetic clades and to update our knowledge of the genetic structure of this species in its native area, with the presence of additional clades. A distance‐based redundancy analysis (dbRDA) was also carried to understand whether there was a correlation between the population genetic differentiation and environmental conditions. This analysis showed that genetic distances observed between G. pallida populations are explained firstly by geographic distances, but also by climatic and soil conditions. This work could lead to a revision of the taxonomy that may have strong implications for risk assessment and management, especially on a quarantine species.
The role of windows of selection and windows of dominance in the evolution of insecticide resistance in human disease vectors
Authors: South Andy , Lees Rosemary , Garrod Gala , Carson Jessica , Malone David , Hastings Ian 
Published: November 2019

AbstractPersistent insecticides sprayed onto house walls, and incorporated into insecticide‐treated bednets, provide long‐acting, cost‐effective control of vector‐borne diseases such as malaria and leishmaniasis. The high concentrations that occur immediately postdeployment may kill both resistant and susceptible insects. However, insecticide concentration, and therefore killing ability, declines in the months after deployment. As concentrations decline, resistant insects start to survive, while susceptible insects are still killed. The period of time after deployment, within which the mortality of resistant individuals is lower than that of susceptible ones, has been termed the “window of selection” in other contexts. It is recognized as driving resistance in bacteria and malaria parasites, both of which are predominantly haploid. We argue that paying more attention to these mortality differences can help understand the evolution of insecticide resistance. Because insects are diploid, resistance encoded by single genes generates heterozygotes. This gives the potential for a narrower “window of dominance,” within the window of selection, where heterozygote mortality is lower than that of susceptible homozygotes. We explore the general properties of windows of selection and dominance in driving resistance. We quantify their likely effect using data from new laboratory experiments and published data from the laboratory and field. These windows can persist months or years after insecticide deployments. Differential mortalities of resistant, susceptible and heterozygous genotypes, after public health deployments, constitute a major challenge to controlling resistance. Greater attention to mortality differences by genotype would inform strategies to reduce the evolution of resistance to existing and new insecticides.
Depositional and diagenetic history of limestones and dolostones of the Oligo‐Miocene Kujung Formation in the Northeast Java Basin, Indonesia
Authors: Syah Muhlash Hada Firman , Kano Akihiro , Iizuka Tsuyoshi , Kakizaki Yoshihiro 
Published: November 2019

AbstractLithological and geochemical features of platformal carbonates record the signatures of the global climates and the regional environmental settings and also reconstruct the diagenetic history and porosity evolution, which are essential to evaluate the potential of hydrocarbon reservoirs. This study investigates the platformal carbonates of the Oligo‐Miocene Krunji Formation of North East Java Basin, which are potentially significant hydrocarbon reservoirs. The carbonate sequence in a 283 m thick section at Kranji in East Java is subdivided into three lithological units: limestone unit 1, dolostone unit 2, and limestone unit 3, in ascending order. The strontium‐isotope ratios of well‐preserved calcite samples indicate the depositional period from Chattian (late Oligocene) to Burdigalian (early Miocene), which is consistent with ages of the foraminifer assemblages. Unit 1 consists of low‐porosity limestone, in which two horizons of subaerial exposure are recognized by the occurrence of red‐colored matrix and lower δ13C values. Unit 2 consists of dolomitic rock and exhibits coarse‐grained calcitic grains and cross‐stratified structure. Considering that this unit has been subject to dolomitization, the sediment of unit 2 was initially permeable and was likely deposited in a shoal setting. The overlying unit 3 of Aquitanian–Burdigalian age is characterized by a highly granular texture. High porosity and uniformly low δ13C and δ18O values indicate that Unit 3 was subjected to more intense meteoric diagenesis than the Chattian unit 1. This was likely a consequence of the Antarctic ice‐sheet expansion during the Oligocene/Miocene transition, which amplified sea level change. The unit 2 dolomite has high δ13C and δ18O values and a high87Sr/86Sr ratio which resulted from the reflux of seawater into permeable the sediment body in middle‐late Miocene (Burdigalian Tortonian) following the deposition of unit 3. The porosity and permeability of the Kujung Formation were initially controlled by sedimentological processes, but largely modified by later diagenetic processes.
Stimuli involved in dental anxiety: What are patients afraid of?: A descriptive study
Authors: Vanhee Tania , Mourali Sandrine , Bottenberg Peter , Jacquet Wolfgang , Vanden Abbeele Astrid 
Published: November 2019

AbstractBackgroundDental anxiety is a psychological response inducing aversion following a dental ill‐defined stimulus, non‐imminent and perceived as potentially dangerous. It is better to intervene during childhood than to resolve in adulthood when dental anxiety is more settled. Aim: The purpose of this study is to determine the nature of dental anxiety‐provoking stimuli in young patients.DesignA questionnaire was submitted to 566 children between 3 to 18 years in health institutions and schools in Brussels, Belgium. The items were divided into 3 groups: environment (ENV), local anaesthesia (LA), and intervention (INT) and summarized through averaging per group. Descriptive analysis and non‐parametric testing were combined with logistic regression after discretization, above mild, for the group averages.ResultsAbout 7.2% of the respondents expressed high to severe dental anxiety. Several items presented a clear bimodal distribution dividing the population in fearless and fearing patients, for example, sight and feel of the syringe, sight and taste of blood and extraction. Others presented with a gradually lower incidence with increasing fear level. Fear for the environment was generally low. Gender and ethnic origin contribute significantly to the prediction of fear caused by LA. For fear caused by INT, first the place of questioning enters the models, thereafter follow: negative experience, frequency of dental visit, and gender (P < .05).ConclusionsWhile the dental environment is in general not causing fear, the invasive part of the anaesthesia and the invasive dental procedures are involved. Fear seems to be related to culture, previous experience, and gender.
Configuration in smart service systems: A practice‐based inquiry
Authors: Wessel Lauri , Davidson Elizabeth , Barquet Ana Paula , Rothe Hannes , Peters Oliver , Megges Herlind 
Published: November 2019

AbstractIn this paper, we develop a new perspective on configuration processes inherent to smart service systems that brings human actors to the theoretical foreground, is informed by practice theory, and is grounded in an intervention study of smart locating systems used in home care of persons with dementia. Maintaining control of the location of persons with dementia is a major source of caregiver burden, and assistive technologies such as smart locating systems hold the promise of enhancing quality of life and reducing caregiver burden. Drawing from research on smart service systems, organizational configuration research, and practice theory, we articulate a conceptual model of configuring in practice to explain how practice elements and the capabilities of smart technologies become mutually configured. Our analysis of study participants' experiences with the locating systems identified three distinctive configurations, characterized as enhanced smartness, degraded smartness, and fragile smartness, which developed through configuring processes. The configuring in practice model we develop here helps explain why unexpected and anticipated configurations develop and thus the conditions that facilitate or inhibit value cocreation in smart service systems.
Reversible and irreversible domain wall dynamics in [011]C oriented relaxor ferroelectric single crystals
Authors: Fang Hong , Wang Lihai , Kuai Weijie , Du Juan , Jiang Guicheng , Lu Xiaoyan , Zhao Minglei , Wang Chunming , Su Wenbin , Zheng Limei , Wang Chunying , Wang Chunlei 
Published: November 2019

AbstractDomain wall motions mainly affect all kinds of properties of ferroelectric materials, such as piezoelectricity, dielectric response, and mechanical loss, and the extrinsic contributions associated with domain wall motions have always been an important issue. In this study, the reversible and irreversible extrinsic contributions to the dielectric properties of [011]C‐oriented 0.27Pb(In1/2Nb1/2)O3‐0.46Pb(Mg1/3Nb2/3)O3‐0.27PbTiO3:Mn single crystals have been extracted by the Rayleigh analysis. We found that in the unpoled samples, the extrinsic contributions of reversible and irreversible domain wall motions to dielectric properties significantly reduced, whereas after poling, only the irreversible extrinsic contribution decreased. The pinning effect in the 2R domain structure is much weaker than that in the 4R domain structure, leading to the low enhancement of Qm and a slight decrease in piezoelectricity caused by acceptor doping in 2R domain structure. This study explores the domain wall dynamics of acceptor‐doped single crystals and mainly guides on further performance optimization in PbTiO3‐based relaxor single crystals.
Submicronic spherical inclusion black pigment by double‐shell reaction sintering
Authors: Chen Shile , Fu Shenyu , Lang Ying , Tian Chuanjin , Wei Hongkang , Wang Chang‐An 
Published: November 2019

AbstractThe C@ZrSiO4 pigments offer a viable alternative to spinel black pigments, but they have poor tinting strength due to low encapsulation rate. The aggregate and irregular morphology limits their application. Herein, as a three‐in‐one solution for the above issues, we report a highly dispersed submicronic inclusion black pigment with deep dark hue by double‐shell reaction sintering method for the first time. The morphological advantage of spherical CSs (carbon spheres) @ZrSiO4 pigments has successfully stimulated a significant increase in chromatic performance with L* value of 13.58. In addition, the suspension stability of the pigments in solution was verified, and the effect of the order of double shell on the encapsulation efficiency was studied.