bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Hybrid of Optical Remote Sensing and Hydrological Modeling Improves Water Balance Estimation
Authors: Gleason Colin J. , Wada Yoshihide , Wang Jida 
Published: November 2017

AbstractDeclining gauging infrastructure and fractious water politics have decreased available information about river flows globally. Remote sensing and water balance modeling are frequently cited as potential solutions, but these techniques largely rely on these same in‐decline gauge data to make accurate discharge estimates. A different approach is therefore needed, and we here combine remotely sensed discharge estimates made via at‐many‐stations hydraulic geometry (AMHG) and the PCR‐GLOBWB hydrological model to estimate discharge over the Lower Nile. Specifically, we first estimate initial discharges from 87 Landsat images and AMHG (1984–2015), and then use these flow estimates to tune the model, all without using gauge data. The resulting tuned modeled hydrograph shows a large improvement in flow magnitude: validation of the tuned monthly hydrograph against a historical gauge (1978–1984) yields an RMSE of 439 m3/s (40.8%). By contrast, the original simulation had an order‐of‐magnitude flow error. This improvement is substantial but not perfect: tuned flows have a 1–2 month wet season lag and a negative base flow bias. Accounting for this 2 month lag yields a hydrograph RMSE of 270 m3/s (25.7%). Thus, our results coupling physical models and remote sensing is a promising first step and proof of concept toward future modeling of ungauged flows, especially as developments in cloud computing for remote sensing make our method easily applicable to any basin. Finally, we purposefully do not offer prescriptive solutions for Nile management, and rather hope that the methods demonstrated herein can prove useful to river stakeholders in managing their own water.
Output‐feedback model‐reference adaptive calibration for map‐based anti‐jerk control of electromechanical automotive clutches
Authors: Huang Wei , Wong Pak Kin , Zhao Jing , Ma Xinbo 
Published: November 2017

SummaryIt is well known that the map‐based control can reduce the computational burden of the automotive on‐board controller. This paper proposes an output‐feedback model‐reference adaptive control algorithm to calibrate the map‐based anti‐jerk controller for electromechanical clutch engagement. The algorithm can be used to adaptively construct a data‐driven fuzzy rule base without resorting to manual tuning, so that it can overcome the problem of conventional knowledge‐based fuzzy logic design, which involves strenuous parameter‐tuning work in the construction of calibration maps. To accurately define the consequent of each fuzzy rule for anti‐jerk control, an output feedback law for computing the reference trajectory of clutch engagement is developed to eliminate the discontinuous slip‐stick transition, whereas an adaptive controller is designed to track the reference trajectory and compensate the nonlinearity. The convergence of the proposed output‐feedback model‐reference adaptive control algorithm is analyzed. Simulation results indicate that the proposed method can successfully reduce the excessive vehicle jerk and frictional energy dissipation during clutch engagement as compared with the conventional knowledge‐based fuzzy logic controller without fine tuning.
Poly(arylene piperidinium) Hydroxide Ion Exchange Membranes: Synthesis, Alkaline Stability, and Conductivity
Authors: Olsson Joel S. , Pham Thanh Huong , Jannasch Patric 
Published: November 2017

AbstractA series of poly(arylene piperidinium)s (PAPipQs) devoid of any alkali‐sensitive aryl ether bonds or benzylic sites are prepared and studied as anion exchange membranes (AEMs) for alkaline fuel cells. First, the excellent alkaline stability of the model compound 4,4‐diarylpiperidinium is confirmed. Medium molecular weight poly(arylene piperidine)s are then synthesized in polycondensations of N‐methyl‐4‐piperidone and either bi‐ or terphenyl via superelectrophilic activation in triflic acid. Film‐forming PAPipQs are subsequently prepared in Menshutkin reactions with methyl, butyl, hexyl, and octyl halides, respectively. AEMs based on poly(terphenyl dimethylpiperidinium) show the best performance with no structural degradation detectable by 1H NMR spectroscopy after storage in 2 m aq. NaOH at 60 °C after 15 d, and a mere 5% ionic loss at 90 °C. In the fully hydrated state these AEMs reach an OH− conductivity of 89 mS cm−1 at 80 °C. The presence of longer pendant N‐alkyl chains (butyl to octyl) is found to significantly promote Hofmann ring‐opening elimination reactions and the degradation rate increases with increasing alkyl chain length. The results of the present study demonstrate that PAPipQs are efficiently prepared from readily available monomers and show excellent alkaline stability and OH− conductivity when devoid of pendant N‐alkyl chains.
In‐Plane Detection of Guided Surface Plasmons for High‐Speed Optoelectronic Integrated Circuits
Authors: Panchenko Evgeniy , Cadusch Jasper J. , Avayu Ori , Ellenbogen Tal , James Timothy D. , Gómez Daniel , Roberts Ann 
Published: November 2017

AbstractConstrains on the speed of modern digital integrated circuits are dominated by the metallic interconnects between logic gates. Surface plasmon polaritons have potential to overcome this limitation and greatly increase the operating speed of future digital devices. Nevertheless, an ongoing issue is the compatibility of modern planar microelectronic circuits with current methods for detecting surface plasmons. Here, a new approach to in‐plane surface plasmon polariton detection is proposed and experimentally demonstrated. The design is based on metal–semiconductor–metal photodetectors that are acknowledged as having one of the best speed characteristics among photodetectors. In the design, the photodetector structure also plays a dual role as the outcoupling grating for surface plasmons, significantly reducing the footprint of the resulting device. The technique has the potential to enable the integration of surface plasmons as signal carriers in future high‐speed optoelectronic integrated circuits.
Simultaneous Enzyme/Whole‐Cell Biotransformation of C18 Ricinoleic Acid into (R)‐3‐Hydroxynonanoic Acid, 9‐Hydroxynonanoic Acid, and 1,9‐Nonanedioic Acid
Authors: Cha Hee‐Jeong , Seo Eun‐Ji , Song Ji‐Won , Jo Hye‐Jin , Kumar Akula Ravi , Park Jin‐Byung 
Published: November 2017

AbstractRegiospecific oxyfunctionalization of renewable long chain fatty acids into industrially relevant C9 carboxylic acids has been investigated. One example was biocatalytic transformation of 10,12‐dihydroxyoctadecanoic acid, which was produced from ricinoleic acid ((9Z,12R)‐12‐hydroxyoctadec‐9‐enoic acid) by a fatty acid double bond hydratase, into (R)‐3‐hydroxynonanoic acid, 9‐hydroxynonanoic acid, and 1,9‐nonanedioic acid with a high conversion yield of ca. 70%. The biotransformation was driven by enzyme/whole‐cell biocatalysts, consisting of the esterase of Pseudomonas fluorescens and the recombinant Escherichia coli expressing the secondary alcohol dehydrogenase of Micrococcus luteus, the Baeyer‐Villiger monooxygenase of Pseudomonas putida KT2440 and the primary alcohol/aldehyde dehydrogenases of Acinetobacter sp. NCIMB9871. The high conversion yields and the high product formation rates over 20 U/g dry cells with insoluble reactants indicated that various (poly‐hydroxy) fatty acids could be converted into multi‐functional products via the simultaneous enzyme/whole‐cell biotransformations. This study will contribute to the enzyme‐based functionalization of hydrophobic substances.magnified image
BF3⋅OEt2‐Promoted Annulation for Substituted 2‐Arylpyridines as Potent UV Filters and Antibacterial Agents
Authors: Sultana Sabera , Maezono Shizuka Mei Bautista , Akhtar Muhammad Saeed , Shim Jae‐Jin , Wee Young‐Jung , Kim Sung Hong , Lee Yong Rok 
Published: November 2017

AbstractA simple and efficient BF3⋅OEt2 mediated methodology for the construction of diverse 2‐phenylpyridines bearing benzophenone moieties from readily available 3‐formylchromones and phenylacetylenes in wet acetonitrile was developed. The nitrogen source for the pyridine construction was derived from acetonitrile. This one‐pot protocol proceeds via [3+2+1] annulation through cascade nucleophilic addition, hydrolysis, Michael‐type addition, ring opening, and elimination reactions. The synthesized compounds may have applications as UV filters and exhibit potent antibacterial activities.magnified image
Ein gespanntes tricyclisches PC3‐Phosphan – Koordinationschemie und Insertion von Chalkogenatomen in P‐C‐Bindungen
Authors: Hentschel Anne , Brand Alexander , Wegener Philipp , Uhl Werner 
Published: November 2017

AbstractDas tricyclische Phosphan 4 hat ein starres Molekülgerüst. Ein großer Tolman‐Winkel und hohes “Buried Volume” belegen die effektive sterische Abschirmung des P‐Atoms, das ausschließlich an C(sp2)‐Atome bindet. 4 ist ein interessanter neuer Ligand für die Koordinationschemie (Au‐, Pd‐Komplexe) und zeigt infolge der hohen Molekülspannung ungewöhnliche Insertionsreaktionen in endocyclische P‐C‐Bindungen.
Three new mixed‐ligand copper(II) complexes containing glycyl‐l‐valine and N,N‐aromatic heterocyclic compounds: Synthesis, characterization, DNA interaction, cytotoxicity and antimicrobial activity
Authors: Qi Yong‐Yu , Liu Ya‐Xian , Gan Qian , Xiong Ya‐Hong , Mao Zong‐Wan , Le Xue‐Yi 
Published: November 2017

Three novel copper(II) complexes, [Cu(Gly‐l‐Val)(HPBM)(H2O)]·ClO4·H2O (1), [Cu(Gly‐l‐Val)(TBZ)(H2O)]·ClO4 (2) and [Cu(Gly‐l‐Val)(PBO)(H2O)]·ClO4 (3) (Gly‐l‐Val = glycyl‐l‐valine anion, HPBM = 5‐methyl‐2‐(2′‐pyridyl)benzimidazole, TBZ = 2‐(4′‐thiazolyl)benzimidazole, PBO = 2‐(2′‐pyridyl)benzoxazole), have been prepared and characterized with elemental analyses, conductivity measurements as well as various spectroscopic techniques. The interactions of these copper complexes with calf thymus DNA were explored using UV–visible, fluorescence, circular dichroism, thermal denaturation, viscosity and docking analyses methods. The experimental results showed that all three complexes could bind to DNA via an intercalative mode. Moreover, the cytotoxic effects were evaluated using the MTT method, and the antimicrobial activity of these complexes was tested against Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The results showed that the activities are consistent with their DNA binding abilities, following the order of 1 > 2 > 3.
Cause‐specific mortality in HPV+ and HPV− oropharyngeal cancer patients: insights from a population‐based cohort
Authors: Nørregaard Cecilie , Grønhøj Christian , Jensen David , Friborg Jeppe , Andersen Elo , von Buchwald Christian 
Published: November 2017

AbstractIdentifying the causes of death in head and neck cancer patients can optimize follow‐up and therapeutic strategies, but studies in oropharyngeal squamous cell carcinoma (OPSCC) patients stratified by HPV status are lacking. We report cause‐specific mortality in a population‐based cohort of patients with OPSCC. Patients who had been diagnosed with OPSCC (n = 1541) between 2000 and 2014 in eastern Denmark were included in the study. Causes of death were collected through medical files and the Danish National Cause of Death registry. Deaths were grouped as (1) primary oropharyngeal cancer, (2) secondary malignancies, (3) cardiovascular and pulmonary disease, or (4) other/unspecified. The cumulative incidence of death and specific causes of death were determined using risk analysis. At follow‐up, 723 (47.5%) patients had died. The median time to and cause of death were determined: oropharyngeal cancer (n = 432; 1.00 year), secondary malignancies (n = 131; 2.37 years), cardiovascular and pulmonary causes (n = 58; 3.48 years), and unspecified causes (n = 102; 3.42 years). HPV/p16 status was the strongest predictor of improved survival across all causes of death. The only cause of death to decrease in incidence over the 2 years after treatment was death from OPSCC. HPV/p16 positivity was an independent factor for improved survival across all causes of death in patients with OPSCC. In addition, both HPV‐positive and HPV‐negative OPSCC patients faced high 5‐ and 10‐year mortality rates. Implementing secondary screening and prevention strategies for late toxicity and mortality are major goals in managing the treatment of these patients.
Psychological support for people with dementia: A preliminary study
Authors: Birtwell Kelly , Dubrow‐Marshall Linda 
Published: November 2017

AbstractAim/PurposeEvidence suggests nonpharmacological therapies could improve quality of life in people with Alzheimer's disease (Olazaran et al., 2010). This study aimed to explore attitudes to, and acceptability of, psychological support for people with mild dementia, from their perspective.Design/MethodologySemi‐structured interviews were conducted with five people identified from secondary care services. Questions concerned the experience of being diagnosed, experience of support services and their opinion of alternative support options. Interviews were audio‐recorded, transcribed and analysed using thematic analysis.Results/FindingsThree main themes were identified: loss, coping mechanisms and support. Loss of physical abilities was associated with loss of identity and place in the community. Coping mechanisms included asserting control, and growth and development, including engaging in new activities or using humour. Individual needs and preferences were key to effective support. Social aspects of support and opportunities to talk about their feelings were valued by participants. Counselling, mindfulness and group‐based activities, including walking and gardening, were viewed positively. Support from admiral nurses or specialist nurses tended to be viewed in terms of physical health needs, and most needed in later stages of dementia.Research LimitationsLimitations include the small sample size, potential inaccuracies acknowledged by participants regarding recollections of events and researcher bias in hoping that psychological support would be well received.Conclusions/ImplicationsTalking therapies and psychosocial interventions are acceptable sources of support. Person‐centred support which considers personal preferences and abilities can support people to live well with dementia.
Restenosis patterns after bioresorbable vascular scaffold implantation: Angiographic substudy of the GHOST‐EU registry
Authors: Baquet Moritz , Nef Holger , Gori Tomasso , Latib Azeem , Capodanno Davide , Di Mario Carlo , Sabate Manel , Colombo Antonio , Tamburino Corrado , Mehilli Julinda 
Published: November 2017

AbstractObjectivesTo evaluate pattern of in‐BVS‐restenosis after bioresorbable vascular scaffold (BVS) implantation.BackgroundIn‐stent restenosis morphology impacts target lesion revascularization (TLR) rates and clinical outcomes. Although several trials report on outcomes after BVS implantation, information about in‐BVS restenosis pattern is still lacking.MethodsBetween November 2011 and January 2014, in 7 of 10 European centers participating in the GHOST‐EU registry, 668 patients underwent BVS implantation. Of them 164 patients (200 lesions) underwent an additional angiogram 3 to 12 months after index PCI.ResultsBinary in‐BVS restenosis (IBR) (in‐segment diameter stenosis ≥50%) was observed in 12.7% (21 of 164) of patients (30 lesions), with a TLR rate of 16.5%. The IBR morphology was classified as focal margin in 50.0%, focal body in 26.7%, multifocal in 10.0%, and diffuse in 13.3% of these cases. Treatment of small vessels (OR 5.49, 95% CI 1.6–18.8, P < 0.01) was identified as independent predictor of IBR. Performing predilatation (OR 0.13, 95% CI 0.02–1.04, P = 0.06), high‐pressure postdilatation (OR 3.16, 95% CI 0.90–11.18, P = 0.07) as well as treatment of acute coronary syndrome (OR 0.18, 95% CI 0.03–1.12, P = 0.07) seem to strongly influence this risk.ConclusionsThe IBR morphology is mostly focal involving particularly the BVS margins suggesting association with procedural aspects in this early experience with BVS. Treatment of small vessels is the strongest predictor of higher IBR risk.
Metastatic HPV‐related oropharyngeal carcinoma cured with chemoradiotherapy: importance of pretherapy biomolecular assessment
Authors: Perri Francesco , Longo Francesco , Della Vittoria Scarpati Giuseppina , Pisconti Salvatore , Longo Vito , Addeo Raffaele , Carducci Fabio , Buonerba Carlo , Fulciniti Franco , Solla Raffaele 
Published: November 2017

Key Clinical MessagePretherapy assessment has a crucial role in the management of advanced oropharyngeal carcinoma. The case report represents an example of how translational research may help to optimize the therapeutic options and to choose a well‐shaped therapy adapted to the tumor and the patient.
Diagnosis of benign notochordal cell tumor of the spine: is a biopsy necessary?
Authors: Tateda Satoshi , Hashimoto Ko , Aizawa Toshimi , Kanno Haruo , Hitachi Shin , Itoi Eiji , Ozawa Hiroshi 
Published: November 2017

Key Clinical MessageBenign notochordal cell tumor is a benign intraosseous lesion, demonstrates characteristic imaging features. The lesion demonstrates low‐signal intensity in T1‐weighted images, high‐signal intensity in T2‐weighted images, and no enhancement with contrast medium in MRI and slight osteosclerosis in CT. If typical imaging findings are identified, biopsy is not necessary.
Oral care and prevention of pneumonia after withdrawal of nasogastric tube feeding in three elderly patients with psychiatric disorders
Authors: Hamuro Atsushi , Honda Minoru , Tanaka Ryuichi 
Published: November 2017

Key Clinical MessageWe investigated the effect of oral care on the prevention of pneumonia using a clinical scoring scale in elderly patients with psychiatric disorders after the withdrawal of nasogastric feeding tubes. Notably, oral care was effective in preventing pneumonia relapse in these patients.
Suppressed Strong Metal–Support Interactions in Platinum on Sulfated Titania and Their Influence on the Oxidation of Carbon Monoxide
Authors: Lee Jaeha , Song Inhak , Kim Do Heui 
Published: November 2017

AbstractStrong metal–support interactions (SMSI), which are evidenced by the coverage of Pt by the TiO2 support under reducing conditions, were suppressed upon loading Pt on sulfated TiO2 (S‐TiO2), according to controlled CO chemisorption results. Combined X‐ray diffraction (XRD) and X‐ray absorption near‐edge structure (XANES) studies showed that the Pt species interacted more strongly with the sulfur‐free TiO2 surface than with the sulfated TiO2 surface, which thereby facilitated the formation of SMSIs at low temperatures. Weakened interactions between Pt and S‐TiO2 led to the formation of large Pt clusters with more metallic character. CO oxidation on the Pt/S‐TiO2 and Pt/TiO2 catalysts revealed that the temperature for 50 % conversion was lower on Pt/S‐TiO2 than on Pt/TiO2 by more than 50 °C. It was concluded that the metal–support interactions between Pt and TiO2 could be controlled by S species on TiO2, and this ultimately influenced the CO oxidation ability of the catalyst.
Carbodicarbenes and their Captodative Behavior in Catalysis
Authors: Liu Shu‐kai , Shih Wei‐Chih , Chen Wen‐Ching , Ong Tiow‐Gan 
Published: November 2017

AbstractThat of carbones is a new family member in the class of low‐valent carbon compounds. Unlike its cousin, the conventional carbene, the carbone possesses two free electron lone pairs. In combination with their unique allene‐type structure, they possess stronger σ‐donating ability than conventional carbenes such as NHCs or CAACs. Because of this property, they have a huge potential to become a new class of ligands in organometallic chemistry and catalysis. Although carbodiphosphoranes (CDP) were initially discovered in 1961, nearly 50 years were needed to attract the attention of the chemical community with the synthesis of the carbodicarbene (CDC). This Concept paper summarizes developments over the last 10 years and future outlooks for this new class of σ‐donors, particularly carbodicarbenes.
RuII Photosensitizer‐Functionalized Two‐Dimensional MoS2 for Light‐Driven Hydrogen Evolution
Authors: Chen Xin , McAteer David , McGuinness Cormac , Godwin Ian , Coleman Jonathan N. , McDonald Aidan R. 
Published: November 2017

AbstractMetallic‐phase molybdenum disulfide (1T‐MoS2) nanosheets have proven to be highly active in the hydrogen evolution reaction (HER). We describe construction of photosensitizer functionalized 1T‐MoS2 by covalently tethering the molecular photosensitizer [RuII(bpy)3]2+ (bpy=2,2′‐bipyridine) on 1T‐MoS2 nanosheets. This was achieved by covalently tethering the bpy ligand to 1T‐MoS2 nanosheets, and subsequent complexation with [RuII(bpy)2Cl2] to yield [RuII(bpy)3]–MoS2. The obtained [RuII(bpy)3]–MoS2 nanosheets were characterized using infra‐red, electronic absorption, X‐ray photoelectron, and Raman spectroscopies, X‐ray powder diffraction and electron microscopy. The fabricated material exhibited a significant improvement of photocurrent and HER performance, demonstrating the potential of such two‐dimensional [RuII(bpy)3]–MoS2 constructs in photosensitized HER.
Fluorescence Spectroscopy of AdamBODIPY Single Crystals
Authors: Liao Yuan‐Yuan , Melissen Sigismund T.A.G. , Audibert Jean‐Frédéric , Vu Thanh‐Truc , Clavier Gilles , Méallet‐Renault Rachel , Retailleau Pascal , Lemaistre Jean‐Pierre , Génot Valérie , Pansu Robert 
Published: November 2017

AbstractInterest in the fluorescence of organic solids is increasing with the development of nanosensors and research into new molecules with aggregation‐induced fluorescence properties. We have gone beyond the qualitative observation of fluorescence by analyzing the luminescence properties of planar single crystals of a 4,4′‐difluoro‐4‐bora‐(3a,4a)‐diaza‐s‐indacene (BODIPY) derivative with micrometric dimensions. A simple Frenkel exciton model applied to this crystal predicts one band. From time‐resolved fluorescence spectra, three emissions were distinguished. The shortest‐lived one at λ=547 nm was predicted by theory and corresponds to an exciton lifetime of 0.9 ns. A trap with an intermediate emission lifetime of 1.2 ns was found at 569 nm and a final trap at 620 nm has a lifetime of 1.9 ns. These attributions were confirmed by the study of the polarization of these emissions. The 547 nm emission was polarized along the long axis of the crystal as predicted by the Frenkel exciton model. The 569 nm emission was polarized perpendicularly to the plane of the crystal and the 620 nm emission was polarized along the short axis. Thus, the two red‐shifted bands were related to well‐defined defects with specific orientations in the crystal. Fluorescence lifetime imaging measurements showed that the density of these defects is not uniform and that under our synthesis conditions, they are formed in the initial steps of the growth and therefore appear in the center of the crystals.
A novel and efficient lattice‐based authenticated key exchange protocol in C‐K model
Authors: Gupta Daya Sagar , Biswas G. P. 
Published: November 2017

SummaryKey exchange protocols play an important role in securing the network communication over an insecure channel. In literature, a large number of key exchange schemes exist. The security of most of them is based on the Diffie‐Hellman (DH) problems over a group. But these types of DH problems are solvable in the presence of quantum computers. Thus, we require a non‐DH type key exchange scheme that resists to the quantum computers and new modern technologies. In this paper, 2 novel lattice‐based authenticated key exchange (LB‐AKE) protocols, (1) using a signature‐based authenticator and (2) using a signcryption‐based authenticator, are devised in Canetti‐Krawczyk proof model. The security of proposed protocols depends on the hardness of small integer solutions on the lattice. An extensive proof of security to our claim is given. The proposed AKEs characterize faster computation speed and resistance to the modern complex computers.