bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surface Charges at the CaF2/Water Interface Allow Very Fast Intermolecular Vibrational‐Energy Transfer
Authors: Lesnicki Dominika , Zhang Zhen , Bonn Mischa , Sulpizi Marialore , Backus Ellen H. G. 
Published: April 2020

AbstractWe investigate the dynamics of water in contact with solid calcium fluoride, where at low pH, localized charges can develop upon fluorite dissolution. We use 2D surface‐specific vibrational spectroscopy to quantify the heterogeneity of the interfacial water (D2O) molecules and provide information about the sub‐picosecond vibrational‐energy‐relaxation dynamics at the buried solid/liquid interface. We find that strongly H‐bonded OD groups, with a vibrational frequency below 2500 cm−1, display very rapid spectral diffusion and vibrational relaxation; for weakly H‐bonded OD groups, above 2500 cm−1, the dynamics slows down substantially. Atomistic simulations based on electronic‐structure theory reveal the molecular origin of energy transport through the local H‐bond network. We conclude that strongly oriented H‐bonded water molecules in the adsorbed layer, whose orientation is pinned by the localized charge defects, can exchange vibrational energy very rapidly due to the strong collective dipole, compensating for a partially missing solvation shell.
Robust and guaranteed output‐feedback force control of piezoelectric actuator under temperature variation and input constraints
Authors: Hammouche Mounir , Lutz Philippe , Rakotondrabe Micky 
Published: April 2020

AbstractThis paper addresses the control of manipulation force in a piezoelectric tube actuator (piezotube) subjected to temperature variation and input constrains. To handle this problem a robust output‐feedback design is proposed using an interval state‐space model, which permits consideration of the parameter uncertainties caused by temperature variation. The design method is robust in the sense that the eigenvalues of the interval system are designed to be clustered inside desired regions. For that, an algorithm based on Set Inversion Via Interval Analysis (SIVIA) combined with interval eigenvalues computation is proposed. This recursive SIVIA‐based algorithm allows to approximate with subpaving the set solutions of the feedback gain [K] that satisfy the inclusion of the eigenvalues of the closed‐loop system in the desired region, while at the same time ensuring the control inputs amplitude is bounded by specified saturation. The effectiveness of the control strategy is illustrated by experiments on a real piezotube of which the environmental temperature is varied.
Long‐term economic consequences of corporate environmental responsibility: Evidence from heavily polluting listed companies in China
Authors: Xu Fei , Yang Mian , Li Qiangyi , Yang Xiaolei 
Published: April 2020

AbstractIn this study, we aim to investigate the long‐term economic consequences of corporate environmental responsibility (CER) by companies from the perspective of earnings persistence and investors' response. Based on firm‐level data of 1,010 heavily polluting listed companies in China, the empirical results are as follows. First, the CER of China's heavily polluting listed companies has significantly improved their earnings persistence, that is, earnings quality. Second, the positive long‐term economic effect of CER has been achieved through two paths: improving companies' operational efficiency and reducing their credit costs. Third, CER increases investors' response to heavily polluting companies' accounting earnings. Moreover, state‐owned listed companies achieve more significant positive long‐term economic effects from CER than others. The results suggest that heavily polluting companies should correctly identify the long‐term value of CER rather than pay excessive attention to the impact of CER on their current costs and benefits.
UV‐Induced Charge‐Transfer States in Short Guanosine‐Containing DNA Oligonucleotides
Authors: Kufner Corinna L. , Zinth Wolfgang , Bucher Dominik B. 
Published: April 2020

AbstractCharge transfer has proven to be an important mechanism in DNA photochemistry. In particular, guanine (dG) plays a major role as an electron donor, but the photophysical dynamics of dG‐containing charge‐transfer states have not been extensively investigated so far. Here, we use UV pump (266 nm) and picosecond IR probe (∼5–7 μm) spectroscopy to study ultrafast dynamics in dG‐containing short oligonucleotides as a function of sequence and length. For the pure purine oligomers, we observed lifetimes for the charge‐transfer states of the order of several hundreds of picoseconds, regardless of the oligonucleotide length. In contrast, pyrimidine‐containing dinucleotides d(GT) and d(GC) show much faster relaxation dynamics in the 10 to 30 ps range. In all studied nucleotides, the charge‐transfer states are formed with an efficiency of the order of ∼50 %. These photophysical characteristics will lead to an improved understanding of DNA damage and repair processes.
Plantamajoside inhibits the proliferation and epithelial‐to‐mesenchymal transition in hepatocellular carcinoma cells via modulating hypoxia‐inducible factor‐1α‐dependent gene expression
Authors: Yin Wenzhe , Xu Jun , Li Chao , Dai Xiankui , Wu Tong , Wen Jifeng 
Published: April 2020

AbstractAs a potential antitumor herbal medicine, plantamajoside (PMS) benefits the treatment of many human malignances. However, the role of PMS in the progression of hepatocellular carcinoma (HCC) and the related molecular mechanisms is still unknown. Here, we proved that the cell viabilities of HepG2 cells were gradually decreased with the increasing concentrations of CoCl2 and/or PMS via cell counting kit‐8 assay. Meanwhile, 3‐(4,5‐dimethyl‐2‐thiazolyl)‐2,5‐diphenyl‐2H‐tetrazolium bromide (MTT) and western blot assays were used to further confirm that PMS inhibited the CoCl2‐induced cell proliferation in HepG2 cells via suppressing the Ki67 and proliferating cell nuclear antigen expressions. We also performed wound‐healing and transwell assays and demonstrated that PMS inhibited CoCl2‐induced migration and invasion in HepG2 cells via suppressing the epithelial–mesenchymal transition (EMT) process. In addition, the use of 3‐(5′‐hydroxymethyl‐2′‐furyl)‐1‐benzylindazole further proved that PMS inhibited the malignant biological behaviors of HepG2 cells under hypoxic condition by suppressing the hypoxia‐inducible factor‐1α (HIF‐1α) expression. Besides, we further confirmed that PMS suppressed the growth and metastasis of implanted tumors in vivo. Given that PMS suppressed the proliferation and EMT induced by CoCl2 in HCC cells via downregulating HIF‐1α signaling pathway, we provided evidence that PMS might be a novel anti‐cancer drug for HCC treatment.
Tango therapy for Parkinson's disease: Effects of rush elemental tango therapy
Authors: Koh Youngsoon , Noh Geunwoong 
Published: April 2020

AbstractTango therapy is very effective by applying tango elements according to the clinical severity and status of a patient. Maximization of the clinical effects of tango therapy in patients with Parkinson's disease may be achieved by the proper prescription of tango elements according to the clinical status of a patient.
Lithium‐Ion Transfer at Cathode‐Electrolyte Interface in Diluted Electrolytes Using Electrochemical Impedance Spectroscopy
Authors: Ohashi Toshiyuki , Okazaki Ken‐ichi , Fukunaga Toshiharu , Ogumi Zempachi , Abe Takeshi 
Published: April 2020

AbstractElectrochemical impedance spectroscopy (EIS) exhibits a superior performance in separating elementary processes based on different time constants of wide frequency scans without the destruction of electronic devices. Therefore, it was adapted for the evaluation of the interface between the electrode and the electrolyte in lithium‐ion batteries (LIBs). Using the cathode half‐cell of the LIBs, systematic EIS analyses were conducted for various electrolyte concentrations and rest periods at precisely controlled states of charge. Remarkable hysteresis of the charge transfer resistance between the charge and discharge processes was presented in the diluted electrolyte solutions; furthermore, the hysteresis increased with longer rest periods and remained even after 10 h. It is very likely that the hysteresis was caused by the evolution of the cathode–electrolyte interface, which would depend on the relative ratio of solvated species to free solvents based on the concentration of the electrolyte.
Dense Reduced Graphene Oxide Films Obtained by Pressing Create Stable and Compact Capacitive Energy Storage
Authors: Lin Dou , Tang Zihui , Pan Qijun , Zhang Shiping , Huo Dexian , Yan Sisi , Han Fangming 
Published: April 2020

AbstractIt is generally believed that the re‐stacking of reduced graphene oxide (rGO) sheets limits the electrochemical energy storage. Therefore, rGO based electrodes are usually designed to be non‐compact porous and fluffy structures. However, fluffy structures could reduce the conductance, structure stability, and cycling stability of electrodes. Here, to balance the contradiction, three electrodes with different compactness were studied. Amazingly, dense rGO hydrogel films (DrGO‐HF) achieved by simply pressing filtrated rGO films, show highly stable (92 % capacitance retention after 250 000 cycles) and high‐performance compact capacitive energy storage, which can be attributed to the structural stability and electrical conductivity enhanced by the close contact between graphene sheets. This study clarifies the scientific fact that the re‐stacking of rGO sheets would not degrade the electrochemical energy storage performances, which is of great significance for the design and preparation of supercapacitor electrodes with high volumetric energy density.
Emergence of a New [NNN] Pincer Ligand via Si−H Bond Activation and β‐Hydride Abstraction at Tetravalent Cerium
Authors: Werner Daniel , Bayer Uwe , Schädle Dorothea , Anwander Reiner 
Published: April 2020

AbstractThe cerium(IV) pyrazolate complexes [Ce(Me2pz)4]2 and [Ce(Me2pz)4(thf)] initiate β‐hydride abstraction of the bis(dimethylsilyl)amido moiety, to afford a heteroleptic cerium(IV) species containing a dimethylpyrazolyl‐substituted silylamido ligand, namely [Ce(Me2pz)3(bpsa)] (bpsa=bis((3,5‐dimethylpyrazol‐1‐yl)dimethylsilyl)amido; Me2pz =3,5‐dimethylpyrazolato), along with some cerium(III) species. Remarkably, the nucleophilic attack of the pyrazolyl at the silicon atom and concomitant Si−H‐bond cleavage is restricted to the tetravalent cerium oxidation state and appears to proceed via the formation of a transient cerium(IV) hydride, which engages in immediate redox chemistry. When [Ce(Me2pz)4]2 is treated with [Li{N(SiMe3)2}], that is, in the absence of the SiH functionality, any redox chemistry did not occur. Instead, the ceric ate complex [LiCe2(Me2pz)9] and the stable mixed‐ligand ceric species [Ce(Me2pz)2{N(SiMe3)2}2] were obtained.
RhIII‐Catalyzed Double Dehydrogenative Coupling of Free 1‐Naphthylamines with α,β‐Unsaturated Esters
Authors: Rej Supriya , Chatani Naoto 
Published: April 2020

AbstractThe RhIII‐catalyzed, consecutive double C−H oxidative coupling of free 1‐naphthylamine and α,β‐unsaturated esters through C−H/C−H and C−H/N−H bonds is reported. The one step reaction leads to the formation of biologically important alkylidene‐1,2‐dihydrobenzo[cd]indoles scaffolds. This efficient process is much more synthetically convenient and useful than others because the starting materials, such as 1‐naphthylamine derivatives are readily available and the free amine serves as a directing group.
Explicitly semantic representation of pattern and combined geometrical specification
Authors: Peng Zhiguo , Huang Meifa , Zhong Yanru , Chen Leilei , Liu Guanghao 
Published: April 2020

AbstractModel‐based definition (MBD) containing all product and manufacturing information (PMI) has become the data source of future product development because of its incomparable advantages over traditional two‐dimensional drawings. In the whole life cycle of product development, it is an urgent problem to realize the sharing of geometric tolerance specification information of PMI among different CAx (CAD, CAE, CAM, etc.) and the automatic interpretation of its semantics by computer. In this paper, the semantic representation ontology of pattern and combined geometrical specification is studied based on the new generation GPS theory and the construction process is introduced in detail through an example. Benefiting from the logic‐based semantics of the web ontology language (OWL) and semantic web rule language (SWRL), the pattern and combined geometrical specification semantic can be interpreted directly by computer and has the advantages of clear, unambiguous, and consistent at different stages of the product life cycle. At the same time, it can automatically check the consistency of knowledge, reason new knowledge, and semantic query.
A survey study of attitudes toward, and preferences for, e‐therapy interventions for eating disorder psychopathology
Authors: Linardon Jake , Shatte Adrian , Tepper Hannah , Fuller‐Tyszkiewicz Matthew 
Published: April 2020

AbstractObjectiveE‐therapy shows promise as a solution to the barriers that stand in the way of people receiving eating disorder (ED) treatment. Despite the potential for e‐therapy to reduce the well‐known treatment gap, little is known about public views and perspectives on this mode of intervention delivery. This study explored attitudes toward, and preferences for, e‐therapy among individuals spanning the spectrum of eating pathology.MethodSurvey data assessing e‐therapy attitudes and preferences were analyzed from 713 participants recruited from the public. Participants were categorized into one of five subgroups based on the type of self‐reported ED symptoms and severity/risk level, ranging from high risk to a probable threshold or subthreshold ED.ResultsAttitudes toward e‐therapies appeared to be relatively positive; participants largely supported health care insurance coverage of costs for e‐therapies, and were optimistic about the wide‐ranging benefits of e‐therapy. Although three‐quarters of participants expressed a preference for face‐to‐face therapy, a significant percentage of participants (∼50%) reported an intention to use an e‐therapy program for current or future eating problems, with intention ratings highest (70%) among those with probable bulimia nervosa (BN). Variables associated with an e‐therapy preference were not currently receiving psychotherapy, more positive e‐therapy attitudes, and greater stigma associated with professional help‐seeking. Variables associated with e‐therapy intentions were more positive e‐therapy attitudes and a probable BN classification.ConclusionsPresent findings have important implications for increasing online intervention acceptance, engagement, and help‐seeking among those at different stages of illness.
Nikolaeva et al.'s reference book on seed dormancy and germination
Authors: Rosbakh Sergey , Baskin Carol C. , Baskin Jerry M. 
Published: April 2020

AbstractDespite the recent advances in seed science research, information on seed dormancy and germination traits is still missing for many lineages of the seed plants. We translated and digitized a huge data set on seed dormancy and germination from the Reference Book On Dormant Seed Germination by M. Nikolaeva, M. Razumova, and V. Gladkova published in Russian in 1985 and previously not readily accessible to the great majority of people in the international scientific community interested in seeds. The data set contains information on the seed dormancy classification (sensu Nikolaeva et al., 1985; Baskin and Baskin, 2004), dormancy‐breaking conditions/germination, and for some of the included species storage behaviour, of seeds of nearly 3000 gymnosperm and angiosperm species from 843 genera and 164 families occurring worldwide. Additionally, the data set contains about 550 references, many of them unknown to seed scientists, to seed ecology research conducted between 1926 and 1985. The data set should be of value to applied, basic, and theoretical plant biologists, ecologists, and evolutionary biologists interested in the various aspects of regeneration of plants from seeds. There are no copyright or proprietary restrictions for research or teaching purposes. The originator of the data would appreciate notification when and how the data are used. When used in published analyses, this paper should be referred to as the data source.
The climatic space of European pollen taxa
Authors: Wei Dongyang , Prentice I. Colin , Harrison Sandy P. 
Published: April 2020

AbstractPollen data are widely used to reconstruct past climate changes, using relationships between modern pollen abundance in surface samples and climate at the surface‐sample sites as a calibration. Visualization of modern pollen data in multidimensional climate space provides a way to establish that taxon abundances are well behaved before using them in climate reconstructions. Visualization is also helpful for ecological interpretation of variations in pollen abundance in space and time. Here, we present Generalized Additive Models for the distribution of 195 European pollen and pteridophyte spore taxa in a bioclimate space defined by seasonal temperatures (as mean temperature of the coldest month and annual growing degree days) and an annual moisture index. These models can be used to explore the realized climate niche of pollen taxa and to build statistical models for palaeoclimate reconstruction. The data set is released under a Creative Commons BY license. When using the data set, we kindly request that you cite this article.
Quantifying the roles of seed dispersal, filtering, and climate on regional patterns of grassland biodiversity
Authors: Guittar John , Goldberg Deborah , Klanderud Kari , Berge Astrid , Ramírez Boixaderas Marta , Meineri Eric , Töpper Joachim , Vandvik Vigdis 
Published: April 2020

AbstractSeed dispersal and local filtering interactively govern community membership and scale up to shape regional vegetation patterns, but data revealing how and why particular species are excluded from specific communities in nature are scarce. This lack of data is a missing link between our theoretical understanding of how diversity patterns can form and how they actually form in nature, and it hampers our ability to predict community responses to climate change. Here, we compare seed, seedling, and adult plant communities at 12 grassland sites with different climates in southern Norway to examine how community membership is interactively shaped by seed dispersal and local filtering, and how this process varies with climate across sites. To do this, we divide species at each site into two groups: locally transient species, which occur as seeds but are rare or absent as adults (i.e., they arrive but are filtered out), and locally persistent species, which occur consistently as adults in annual vegetation surveys. We then ask how and why locally transient species are disfavored during community assembly. Our results led to four main conclusions: (1) the total numbers of seeds and species that arrived, but failed to establish locally persistent populations, rose with temperature, indicating an increase in the realized effects of local filtering on community assembly, as well as an increase in the number of species poised to rapidly colonize those warmer sites if local conditions change in their favor, (2) locally transient species were selectively filtered out during seedling emergence, but not during seedling establishment, (3) selective filtering was partly driven by species climate preferences, exemplified by the poor performance of seeds dispersing outside of their realized climate niches into colder and drier foreign climates, and (4) locally transient species had traits that likely made them better dispersers (i.e., smaller seeds) but poorer competitors for light (i.e., shorter statures and less persistent clonal connections) than locally persistent species, potentially explaining why these species arrived to new sites but did not establish locally persistent adult populations. Our study is the first to combine seed, seedling, and adult survey data across sites to rigorously characterize how seed dispersal and local filtering govern community membership and shape climate‐associated vegetation patterns.
Analysis of nonequilibrium phenomena on electric characteristics of advanced MOSFETs by using a quantum energy transport model
Authors: Inugai Keisuke , Hiroki Akira 
Published: April 2020

AbstractIn this paper, we have investigated nonequilibrium effects for advanced MOSFETs by using a device simulator with quantum energy transport (QET) model. The QET model allows to simulate nonequilibrium carrier transport as well as quantum confinement. The QET model includes the mobility model as a function of carrier temperature in order to consider the nonlocal effects. We have simulated advanced MOSFETs down to 20 nm gate length using the QET model. The QET model is compared with the quantum drift diffusion (QDD) model which includes a mobility model with local assumptions. It is found that the nonlocal mobility model is needed to simulate the advanced MOSFETs with less than 40 nm.
Development of droop control with active power limitation and dc voltage limitation for multiterminal high‐voltage direct current system
Authors: Yoshihara Toru , Kimura Mamoru 
Published: April 2020

AbstractAs for the offshore wind farm connected multiterminal high‐voltage direct current system, this paper proposes the new droop control scheme for onshore converters with active power limitation and dc voltage limitation, and then the simulation results with three‐terminal high‐voltage direct current system model are shown.
Influence of pre‐freezing conditions of octacalcium phosphate and collagen composite for reproducible appositional bone formation
Authors: Yanagisawa Toshiki , Yasuda Ayato , Makkonen Ria I. , Kamakura Shinji 
Published: April 2020

AbstractEven though conventionally prepared octacalcium phosphate and collagen composite (OCP/Col) has exhibited excellent bone regeneration and has recently been commercialized for treating bone defects, reproducible appositional bone formation with OCP/Col has never been achieved. The present study investigated whether appositional bone formation could be achieved by altering the density of OCP/Col and applying liquid nitrogen during the preparation of OCP/Col. The prepared OCP/Col disks had eight variations and were divided into categories according to four different type of densities (1.0, 1.3, 1.7, and 2.0) of OCP/Col and two different pre‐freezing conditions of gas phase (G group: −80°C) and liquid phase (L group: −196°C). These disks were implanted into subperiosteal pockets in rodent calvaria, five samples per each eight variations. Radiomorphometric analysis was conducted at 4 and 12 weeks after implantation, and histological analysis was conducted at 12 weeks after implantation. OCP/Col samples in the L group tended to retain their height and shape and had enhanced appositional bone formation, whereas OCP/Col samples in the G group tended to lose their height and shape and had limited appositional bone formation. The appositional bone formation increased along with growing density of OCP/Col, and L2.0 demonstrated higher appositional bone formation than other samples. These results suggest that the pre‐freezing conditions and densities of OCP/Col affect the appositional bone formation.