bluuebunny/crossref_metadata_2025 huggingface dataset:
Colonial Mobility and Ambiguity: The Life of Filmmaker Hinatsu/Huyung
Authors: Barker Thomas
Published: April 2017

Colonial subjects caught up supporting colonialism have often been seen as either engaging in an encounter of ambivalence or seen as traitors in post-independence nationalist historiography. Rather than following this established binary of possible subject positions, this article considers the unique biography of a filmmaker known in Indonesia as Dr Huyung. Prior work on Dr Huyung has either considered the pre and post 1945 stages of his life in isolation thus making incomplete assessments of his life and contributions. By bringing these two periods into conversation, a complete biography enables a more complex idea of colonial subjectivity to emerge. Huyung's life provides an alternative history of colonialism and an entry point in which to interrogate the limits and opportunities available in Asia of the 1930s to 1950s.

This article traces the life of Dr Huyung from his birth in Korea as Hoe Yong, his life under Japanese occupation when he became Hinatsu Eitaro and moved to Japan to study film, to Indonesia as a Japanese propaganda officer, and finally to a new identity as Dr Huyung in independent Indonesia. As a trans-national subject operating across multiple subject positions – including colonial subject, colonial agent, and supporter of independence – this article challenges how subjectivity is thought about under colonialism and the historiography of national cinema in Indonesia, and contributes to understand his role in helping define and shape arts and culture in post-colonial Indonesia.
Metformin suppresses triple-negative breast cancer stem cells by targeting KLF5 for degradation
Authors: Shi Peiguo , Liu Wenjing , Tala  , Wang Haixia , Li Fubing , Zhang Hailin , Wu Yingying , Kong Yanjie , Zhou Zhongmei , Wang Chunyan , Chen Wenlin , Liu Rong , Chen Ceshi
Published: April 2017

Out of the breast cancer subtypes, triple-negative breast cancer (TNBC) has the poorest prognosis without effective targeted therapies. Metformin, a first-line drug for type 2 diabetes mellitus, was demonstrated to target breast cancer stem cells selectively. However, the efficiency and the mechanism of action of metformin in TNBC are unclear. In this study, we demonstrated that metformin decreased the percentage of TNBC stem cells partially through the downregulation of the expression of the stem cell transcription factor Krüppel-like factor 5 (KLF5) and its downstream target genes, such as Nanog and FGF-BP1, in TNBC cell lines. Metformin induced glycogen synthase kinase-3β (GSK3β)-mediated KLF5 protein phosphorylation and degradation through the inhibition of protein kinase A (PKA) activity in TNBC cells. Consistently, PKA activators increased the expression levels of KLF5. We observed a positive correlation between p-CREB, p-GSK3β, KLF5 and FGF-BP1 protein levels in human TNBC samples. These findings suggest that metformin suppresses TNBC stem cells partially through the PKA-GSK3β-KLF5 signaling pathway.
Enhanced superconductivity accompanying a Lifshitz transition in electron-doped FeSe monolayer
Authors: Shi X. , Han Z-Q , Peng X-L , Richard P. , Qian T. , Wu X-X , Qiu M-W , Wang S. C. , Hu J. P. , Sun Y-J , Ding H.
Published: April 2017

The origin of enhanced superconductivity over 50 K in the recently discovered FeSe monolayer films grown on SrTiO3 (STO), as compared to 8 K in bulk FeSe, is intensely debated. As with the ferrochalcogenides AxFe2−ySe2 and potassium-doped FeSe, which also have a relatively high-superconducting critical temperature (Tc), the Fermi surface (FS) of the FeSe/STO monolayer films is free of hole-like FS, suggesting that a Lifshitz transition by which these hole FSs vanish may help increasing Tc. However, the fundamental reasons explaining this increase of Tc remain unclear. Here we report a 15 K jump of Tc accompanying a second Lifshitz transition characterized by the emergence of an electron pocket at the Brillouin zone centre, which is triggered by high-electron doping following in situ deposition of potassium on FeSe/STO monolayer films. Our results suggest that the pairing interactions are orbital dependent in generating enhanced superconductivity in FeSe.
Erratum: Nonlinear detection of secondary isotopic chemical shifts in NMR through spin noise
Authors: Pöschko Maria Theresia , Rodin Victor V. , Schlagnitweit Judith , Müller Norbert , Desvaux Hervé
Published: April 2017

Nature Communications 8: Article number: 13914 (2017); Published 9 January 2017; Updated 19 April 2017 This Article contains typographical errors in Equation 1, where the fraction line incorrectly extends across the entire equation. The correct form of Equation 1 is as follows:
Localization of Laplacian eigenvectors on random networks
Authors: Hata Shigefumi , Nakao Hiroya
Published: April 2017

In large random networks, each eigenvector of the Laplacian matrix tends to localize on a subset of network nodes having similar numbers of edges, namely, the components of each Laplacian eigenvector take relatively large values only on a particular subset of nodes whose degrees are close. Although this localization property has significant consequences for dynamical processes on random networks, a clear theoretical explanation has not yet been established. Here we analyze the origin of localization of Laplacian eigenvectors on random networks by using a perturbation theory. We clarify how heterogeneity in the node degrees leads to the eigenvector localization and that there exists a clear degree-eigenvalue correspondence, that is, the characteristic degrees of the localized nodes essentially determine the eigenvalues. We show that this theory can account for the localization properties of Laplacian eigenvectors on several classes of random networks, and argue that this localization should occur generally in networks with degree heterogeneity.
Effects of elevated CO2 on the fitness and potential population damage of Helicoverpa armigera based on two-sex life table
Authors: Liu Jinping , Huang Wenkun , Chi Hsin , Wang Chonghui , Hua Hongxia , Wu Gang
Published: April 2017

We evaluated the direct effects of three different atmospheric CO2 concentrations (380 ppm, 550 ppm and 750 ppm) on the population parameters of the cotton bollworm, Helicoverpa armigera fed an artificial diet. The life history and fitness of H. armigera were analyzed using an age-stage, two-sex life table. Our results showed significantly longer larval durations and lower female pupal weight under elevated CO2 than under ambient CO2. Additionally, the fecundity of H. armigera was lower under elevated CO2 than under ambient CO2. H. armigera reared under elevated CO2 conditions showed lower intrinsic and finite rates of increase but higher net consumption and finite consumption rates than H. armigera reared under ambient CO2 conditions. According to population projections, a much smaller total population size and reduced consumption capacities would be expected in an elevated CO2 atmosphere due to higher mortality and lower growth rate compared with ambient CO2 levels. These results indicate that the fitness of and potential damage caused by H. armigera would be affected by increased CO2 relative to ambient CO2 concentrations. Additional studies on the long-term direct and indirect effects of elevated CO2 levels on H. armigera are still needed.
Spreading depolarization remarkably exacerbates ischemia-induced tissue acidosis in the young and aged rat brain
Authors: Menyhárt Ákos , Zölei-Szénási Dániel , Puskás Tamás , Makra Péter , Orsolya M. Tóth , Szepes Borbála É. , Tóth Réka , Ivánkovits-Kiss Orsolya , Obrenovitch Tihomir P. , Bari Ferenc , Farkas Eszter
Published: April 2017

Spreading depolarizations (SDs) occur spontaneously in the cerebral cortex of subarachnoid hemorrhage, stroke or traumatic brain injury patients. Accumulating evidence prove that SDs exacerbate focal ischemic injury by converting zones of the viable but non-functional ischemic penumbra to the core region beyond rescue. Yet the SD-related mechanisms to mediate neurodegeneration remain poorly understood. Here we show in the cerebral cortex of isoflurane-anesthetized, young and old laboratory rats, that SDs propagating under ischemic penumbra-like conditions decrease intra and- extracellular tissue pH transiently to levels, which have been recognized to cause tissue damage. Further, tissue pH after the passage of each spontaneous SD event remains acidic for over 10 minutes. Finally, the recovery from SD-related tissue acidosis is hampered further by age. We propose that accumulating acid load is an effective mechanism for SD to cause delayed cell death in the ischemic nervous tissue, particularly in the aged brain.
Exploration of the relationship between biogas production and microbial community under high salinity conditions
Authors: Wang Shaojie , Hou Xiaocong , Su Haijia
Published: April 2017

High salinity frequently causes inhibition and even failure in anaerobic digestion. To explore the impact of increasing NaCl concentrations on biogas production, and reveal the microbial community variations in response to high salinity stress, the Illumina high-throughput sequencing technology was employed. The results showed that a NaCl concentration of 20 g/L (H group) exhibited a similar level of VFAs and specific CO2 production rate with that in the blank group, thus indicating that the bacterial activity in acidogenesis might not be inhibited. However, the methanogenic activity in the H group was significantly affected compared with that in the blank group, causing a 42.2% decrease in CH4 production, a 37.12% reduction in the specific CH4 generation rate and a lower pH value. Illumina sequencing revealed that microbial communities between the blank and H groups were significantly different. Bacteroides, Clostridium and BA021 uncultured were the dominant species in the blank group while some halotolerant genera, such as Thermovirga, Soehngenia and Actinomyces, dominated and complemented the hydrolytic and acidogenetic abilities in the H group. Additionally, the most abundant archaeal species included Methanosaeta, Methanolinea, Methanospirillum and Methanoculleus in both groups, but hydrogenotrophic methanogens showed a lower resistance to high salinity than aceticlastic methanogens.
Resonant Raman scattering based approaches for the quantitative assessment of nanometric ZnMgO layers in high efficiency chalcogenide solar cells
Authors: Guc Maxim , Hariskos Dimitrios , Calvo-Barrio Lorenzo , Jackson Philip , Oliva Florian , Pistor Paul , Perez-Rodriguez Alejandro , Izquierdo-Roca Victor
Published: April 2017

This work reports a detailed resonant Raman scattering analysis of ZnMgO solid solution nanometric layers that are being developed for high efficiency chalcogenide solar cells. This includes layers with thicknesses below 100 nm and compositions corresponding to Zn/(Zn + Mg) content rations in the range between 0% and 30%. The vibrational characterization of the layers grown with different compositions and thicknesses has allowed deepening in the knowledge of the sensitivity of the different Raman spectral features on the characteristics of the layers, corroborating the viability of resonant Raman scattering based techniques for their non-destructive quantitative assessment. This has included a deeper analysis of different experimental approaches for the quantitative assessment of the layer thickness, based on (a) the analysis of the intensity of the ZnMgO main Raman peak; (b) the evaluation of the changes of the intensity of the main Raman peak from the subjacent layer located below the ZnMgO one; and (c) the study of the changes in the relative intensity of the first to second/third order ZnMgO peaks. In all these cases, the implications related to the presence of quantum confinement effects in the nanocrystalline layers grown with different thicknesses have been discussed and evaluated.
Quantum Enhanced Inference in Markov Logic Networks
Authors: Wittek Peter , Gogolin Christian
Published: April 2017

Markov logic networks (MLNs) reconcile two opposing schools in machine learning and artificial intelligence: causal networks, which account for uncertainty extremely well, and first-order logic, which allows for formal deduction. An MLN is essentially a first-order logic template to generate Markov networks. Inference in MLNs is probabilistic and it is often performed by approximate methods such as Markov chain Monte Carlo (MCMC) Gibbs sampling. An MLN has many regular, symmetric structures that can be exploited at both first-order level and in the generated Markov network. We analyze the graph structures that are produced by various lifting methods and investigate the extent to which quantum protocols can be used to speed up Gibbs sampling with state preparation and measurement schemes. We review different such approaches, discuss their advantages, theoretical limitations, and their appeal to implementations. We find that a straightforward application of a recent result yields exponential speedup compared to classical heuristics in approximate probabilistic inference, thereby demonstrating another example where advanced quantum resources can potentially prove useful in machine learning.
Ultrahigh Responsivity and Detectivity Graphene–Perovskite Hybrid Phototransistors by Sequential Vapor Deposition
Authors: Chang Po-Han , Liu Shang-Yi , Lan Yu-Bing , Tsai Yi-Chen , You Xue-Qian , Li Chia-Shuo , Huang Kuo-You , Chou Ang-Sheng , Cheng Tsung-Chin , Wang Juen-Kai , Wu Chih-I
Published: April 2017

In this work, graphene-methylammonium lead iodide (MAPbI3) perovskite hybrid phototransistors fabricated by sequential vapor deposition are demonstrated. Ultrahigh responsivity of 1.73 × 107 A W−1 and detectivity of 2 × 1015 Jones are achieved, with extremely high effective quantum efficiencies of about 108% in the visible range (450–700 nm). This excellent performance is attributed to the ultra-flat perovskite films grown by vapor deposition on the graphene sheets. The hybrid structure of graphene covered with uniform perovskite has high exciton separation ability under light exposure, and thus efficiently generates photocurrents. This paper presents photoluminescence (PL) images along with statistical analysis used to study the photo-induced exciton behavior. Both uniform and dramatic PL intensity quenching has been observed over entire measured regions, consistently demonstrating excellent exciton separation in the devices.
Structure and Variability of the North Equatorial Current/Undercurrent from Mooring Measurements at 130°E in the Western Pacific
Authors: Zhang Linlin , Wang Fu Jun , Wang Qingye , Hu Shijian , Wang Fan , Hu Dunxin
Published: April 2017

The mean structure and variability of the North Equatorial Current/Undercurrent (NEC/NEUC) are investigated with one-year Acoustic Doppler Current Profilers measurements from 4 subsurface moorings deployed at 10.5°N, 13°N, 15.5°N, and 18°N along 130°E in the western Pacific. The strong westward flowing NEC ranges from the sea surface down to 400 m, and the mean zonal velocity of the NEC at 10.5°N is around −30 cm/s at the depth of 70 m. Eastward flowing NEUC jets are detected below the NEC at 10.5°N and 13°N, and the depth of the NEUC could reach at least 900 m. The mean velocity of the NEUC is around 4.2 cm/s at 800 m. No eastward undercurrents are observed at 15°N and 18°N. The mooring measurements also reveal a strong intraseasonal variability of the currents at all 4 mooring sites, and the period is around 70–120 days. The vertical structure of this intraseasonal variability varies at different latitudes. The variability of the NEUC jets at 10.5°N and 13°N appears to be dominated by subthermocline signals, while the variability of the currents at 15.5°N and 18°N is dominated by surface-intensified signals.
GaAs1−xBix/GaNyAs1−y type-II quantum wells: novel strain-balanced heterostructures for GaAs-based near- and mid-infrared photonics
Authors: Broderick Christopher A. , Jin Shirong , Marko Igor P. , Hild Konstanze , Ludewig Peter , Bushell Zoe L. , Stolz Wolfgang , Rorison Judy M. , O’Reilly Eoin P. , Volz Kerstin , Sweeney Stephen J.
Published: April 2017

The potential to extend the emission wavelength of photonic devices further into the near- and mid-infrared via pseudomorphic growth on conventional GaAs substrates is appealing for a number of communications and sensing applications. We present a new class of GaAs-based quantum well (QW) heterostructure that exploits the unusual impact of Bi and N on the GaAs band structure to produce type-II QWs having long emission wavelengths with little or no net strain relative to GaAs, while also providing control over important laser loss processes. We theoretically and experimentally demonstrate the potential of GaAs1−xBix/GaNyAs1−y type-II QWs on GaAs and show that this approach offers optical emission and absorption at wavelengths up to ~3 µm utilising strain-balanced structures, a first for GaAs-based QWs. Experimental measurements on a prototype GaAs0.967Bi0.033/GaN0.062As0.938 structure, grown via metal-organic vapour phase epitaxy, indicate good structural quality and exhibit both photoluminescence and absorption at room temperature. The measured photoluminescence peak wavelength of 1.72 μm is in good agreement with theoretical calculations and is one of the longest emission wavelengths achieved on GaAs to date using a pseudomorphically grown heterostructure. These results demonstrate the significant potential of this new class of III-V heterostructure for long-wavelength applications.
Male African elephants discriminate and prefer vocalizations of unfamiliar females
Authors: Stoeger Angela S. , Baotic Anton
Published: April 2017

Gaining information about conspecifics via long-distance vocalizations is crucial for social and spatially flexible species such as the African elephant (Loxodonta africana). Female elephants are known to discriminate individuals and kin based on acoustic cues. Specifically, females approached the loudspeaker exclusively with playbacks of familiar individuals with high association indexes, intentionally fusing with their affiliates. For males, which are less bonded, gathering social information via vocalizations could still have important implications, but little is known about their vocal discrimination skills. We experimentally tested the ability of male African elephants to discriminate the social rumbles of familiar (from the same population) versus unfamiliar females. Male elephants discriminated and preferentially moved towards the rumbles of unfamiliar females, showing longer attentive reactions and significantly more orientating (facing and approaching the speaker) behavior. The increased orientating response of males towards playbacks of unfamiliar females is converse to the reaction of female subjects. Our results provide evidence that male elephants extract social information from vocalizations, yet with a different intention than females. Accordingly, males might use social cues in vocalizations to assess mating opportunities, which may involve selection to identify individuals or kin in order to avoid inbreeding.
Increased spontaneous MEG signal diversity for psychoactive doses of ketamine, LSD and psilocybin
Authors: Schartner Michael M. , Carhart-Harris Robin L. , Barrett Adam B. , Seth Anil K. , Muthukumaraswamy Suresh D.
Published: April 2017

What is the level of consciousness of the psychedelic state? Empirically, measures of neural signal diversity such as entropy and Lempel-Ziv (LZ) complexity score higher for wakeful rest than for states with lower conscious level like propofol-induced anesthesia. Here we compute these measures for spontaneous magnetoencephalographic (MEG) signals from humans during altered states of consciousness induced by three psychedelic substances: psilocybin, ketamine and LSD. For all three, we find reliably higher spontaneous signal diversity, even when controlling for spectral changes. This increase is most pronounced for the single-channel LZ complexity measure, and hence for temporal, as opposed to spatial, signal diversity. We also uncover selective correlations between changes in signal diversity and phenomenological reports of the intensity of psychedelic experience. This is the first time that these measures have been applied to the psychedelic state and, crucially, that they have yielded values exceeding those of normal waking consciousness. These findings suggest that the sustained occurrence of psychedelic phenomenology constitutes an elevated level of consciousness - as measured by neural signal diversity.
Clinical-pharmacogenetic models for personalized cancer treatment: application to malignant mesothelioma
Authors: Goričar Katja , Kovač Viljem , Dolžan Vita
Published: April 2017

Large interindividual differences in treatment outcome are observed in cancer patients undergoing chemotherapy. Our aim was to develop and validate clinical-pharmacogenetic prediction models of gemcitabine/cisplatin or pemetrexed/cisplatin treatment outcome and develop an algorithm for genotype-based treatment recommendations in malignant mesothelioma (MM). We genotyped 189 MM patients for polymorphisms in gemcitabine, pemetrexed and cisplatin metabolism, transport and drug target genes and DNA repair pathways. To build respective clinical-pharmacogenetic models, pharmacogenetic scores were assigned by rounding regression coefficients. Gemcitabine/cisplatin model was based on training group of 71 patients and included CRP, histological type, performance status, RRM1 rs1042927, ERCC2 rs13181, ERCC1 rs3212986, and XRCC1 rs25487. Patients with higher score had shorter progression-free (PFS) and overall survival (P < 0.001). This model’s sensitivity was 0.615 and specificity 0.812. In independent validation group of 66 patients the sensitivity and specificity were 0.667 and 0.641, respectively. Pemetrexed/cisplatin model was based on 57 patients and included CRP, MTHFD1 rs2236225, and ABCC2 rs2273697. Patients with higher score had worse response and shorter PFS (P < 0.001). This model’s sensitivity was 0.750 and specificity 0.607. In independent validation group of 20 patients the sensitivity and specificity were 0.889 and 0.500, respectively. The proposed algorithm based on these models could enable the choice of the most effective chemotherapy for 85.5% of patients and lead to improved treatment outcome in MM.
Dynamic through-silicon-via filling process using copper electrochemical deposition at different current densities
Authors: Wang Fuliang , Zhao Zhipeng , Nie Nantian , Wang Feng , Zhu Wenhui
Published: April 2017

This work demonstrates the dynamic through-silicon-via (TSV) filling process through staged electrodeposition experiments at different current densities. Different morphologies corresponding to TSV filling results can be obtained by controlling the applied current density. Specifically, a low current density (4 mA/cm2) induces seam defect filling, a medium current density (7 mA/cm2) induces defect-free filling, and a high current density (10 mA/cm2) induces void defect filling. Analysis of the filling coefficient indicates that the effect of current density on the TSV filling models is triggered by the coupling effect of consumption and diffusion of additives and copper ions. Further, the morphological evolution of plating reveals that the local deposition rate is affected by the geometrical characteristics of the plating.
Structural basis of inhibition of lipid-linked oligosaccharide flippase PglK by a conformational nanobody
Authors: Perez Camilo , Köhler Martin , Janser Daniel , Pardon Els , Steyaert Jan , Zenobi Renato , Locher Kaspar P.
Published: April 2017

PglK is an ABC transporter that flips a lipid-linked oligosaccharide (LLO) that serves as a donor in protein N-glycosylation. Previous structures revealed two inward-facing conformations, both with very large separations of the nucleotide binding domains (NBDs), and a closed, ADP-bound state that featured an occluded cavity. To investigate additional states, we developed conformation-sensitive, single-domain camelid nanobodies (Nb) and studied their effect on PglK activity. Biochemical, structural, and mass spectrometric analyses revealed that one inhibitory Nb binds as a single copy to homodimeric PglK. The co-crystal structure of this Nb and ADP-bound PglK revealed a new, narrowly inward-open conformation. Rather than inducing asymmetry in the PglK homodimer, the binding of one Nb results in steric constraints that prevent a second Nb to access the symmetry-related site in PglK. The Nb performed its inhibitory role by a “sticky-doorstop” mechanism, where inhibition of ATP hydrolysis and LLO flipping activity occurs due to impaired closing of the NBD interface, which prevents PglK from converting to an outward-open conformation. This inhibitory mode suggests tight conformational coupling between the ATPase sites, which may apply to other ABC transporters.
Challenges in developing direct carbon fuel cells
Authors: Jiang Cairong , Ma Jianjun , Corre Gael , Jain Sneh L. , Irvine John T. S.
Published: April 2017

A direct carbon fuel cell (DCFC) can produce electricity with both superior electrical efficiency and fuel utilisation compared to all other types of fuel cells.
Catalysis of the hydrodechlorination of 4-chlorophenol and the reduction of 4-nitrophenol by Pd/Fe3O4@C
Authors: Li Fuchong , Liu Yansheng , Ma Tianqiong , Xu Dianhong , Li Xu , Gong Guangbi
Published: April 2017

A recyclable and efficient magnetic core–shell Pd/Fe3O4@C nanocatalyst is applied in the HDC of 4-CP and hydrogenation of 4-NP.
Effects of Rh-doping on the photooxidative degradation activity of titanate nanosheets
Authors: Soontornchaiyakul Wasusate , Fujimura Takuya , Usami Hisanao , Sasai Ryo
Published: April 2017

Rh doped titanate compounds were exfoliated to obtain the TiNS:Rh nanosheet (TiNS:Rh is [Ti3−xRhxO7]2−), and then, the photocatalyst capacity of TiNS:Rhx was also realized by observe the photodegradation of methylene blue.
Quantitative NMR of quadrupolar nucleus as a novel analytical method: hydrolysis behaviour analysis of aluminum ion
Authors: Maki Hideshi , Sakata Genki , Mizuhata Minoru
Published: April 2017

In this study, quantitative nuclear magnetic resonance (qNMR) spectroscopy of quadrupolar nuclei has been established.
Atmospheric pressure soft ionization for gas chromatography with dielectric barrier discharge ionization-mass spectrometry (GC-DBDI-MS)
Authors: Mirabelli Mario F. , Wolf Jan-Christoph , Zenobi Renato
Published: April 2017

In this study, a gas chromatography (GC) system was interfaced to a high-resolution Orbitrap mass spectrometer by means of an active capillary plasma ionization source, based on dielectric barrier discharge ionization (DBDI).
Biomonitoring method for the analysis of chromium and cobalt in human whole blood using inductively coupled plasma-kinetic energy discrimination-mass spectrometry (ICP-KED-MS)
Authors: Georgi Joaudimir Castro , Sommer Yuliya L. , Ward Cynthia D. , Cheng Po-Yung , Jones Robert L. , Caldwell Kathleen L.
Published: April 2017

An ICP-MS method to measure total chromium and cobalt in whole blood is validated and described.
α,β-Functionalization of saturated ketones with anthranils via Cu-catalyzed sequential dehydrogenation/aza-Michael addition/annulation cascade reactions in one-pot
Authors: Tiwari Dipak Kumar , Phanindrudu Mandalaparthi , Wakade Sandip Balasaheb , Nanubolu Jagadeesh Babu , Tiwari Dharmendra Kumar
Published: April 2017

An efficient method to access functionalized quinolines from the readily available saturated ketones and anthranils have been explored.
Unexpected catalytic activity of simple triethylborohydrides in the hydrosilylation of alkenes
Authors: Zaranek M. , Witomska S. , Patroniak V. , Pawluć P.
Published: April 2017

Highly regioselective hydrosilylation of olefins with aryl- and alkoxysilanes has been developed using a simple sodium triethylborohydride.
Catalytic C–H amination driven by intramolecular ligand-to-nitrene one-electron transfer through a rhodium(iii) centre
Authors: Fujita Daiki , Sugimoto Hideki , Shiota Yoshihito , Morimoto Yuma , Yoshizawa Kazunari , Itoh Shinobu
Published: April 2017

Nitrene bound biradical active oxidant aminates C–H bond in an intermolecular manner.
Toward wearable sensors: optical sensor for detection of ammonium nitrate-based explosives, ANFO and ANNM
Authors: Sheykhi Sara , Mosca Lorenzo , Anzenbacher Pavel
Published: April 2017

An imine-functionalized polymer displays selective fluorimetric response to the component of ANFO and ANNM, ammonium nitrate and nitromethane!
Selective adsorption of carbohydrates and glycoproteins via molecularly imprinted hydrogels: application to visible detection by a boronic acid monomer
Authors: Kubo Takuya , Furuta Hayato , Naito Toyohiro , Sano Tomoharu , Otsuka Koji
Published: April 2017

Molecularly imprinted PEG-based hydrogels were prepared for carbohydrates and glycoproteins. Visible detection of fructose was achieved by the gels.
Operando X-ray spectroscopic observations of modulations of local atomic and electronic structures of color switching smart film
Authors: Lu Ying-Rui , Wu Tzung-Zing , Chang Han-Wei , Chen Jeng-Lung , Chen Chi-Liang , Wei Da-Hau , Chen Jin-Ming , Chou Wu-Ching , Dong Chung-Li
Published: April 2017

In situ/operando X-ray spectroscopic observation of color switchable smart film under gasochromic coloration.
The effect of K+ cations on the phase transitions, and structural, dielectric and luminescence properties of [cat][K0.5Cr0.5(HCOO)3], where cat is protonated dimethylamine or ethylamine
Authors: Ptak Maciej , Gągor Anna , Sieradzki Adam , Bondzior Bartosz , Dereń Przemysław , Ciupa Aneta , Trzebiatowska M. , Mączka Mirosław
Published: April 2017

We report the synthesis, crystal structure, and dielectric, vibrational and emission spectra of novel heterometallic DMAKCr and EtAKCr MOFs.
Supramolecular nanotubes based on halogen bonding interactions: cooperativity and interaction with small guests
Authors: Bauzá Antonio , Frontera Antonio
Published: April 2017

In this manuscript the formation of a series of self-assembled supramolecular nanotubes (SNTs) governed by noncovalent halogen bonding interactions is studied.
Phosphorus-Mo2C@carbon nanowires toward efficient electrochemical hydrogen evolution: composition, structural and electronic regulation
Authors: Shi Zhangping , Nie Kaiqi , Shao Zheng-Jiang , Gao Boxu , Lin Huanlei , Zhang Hongbin , Liu Bolun , Wang Yangxia , Zhang Yahong , Sun Xuhui , Cao Xiao-Ming , Hu P. , Gao Qingsheng , Tang Yi
Published: April 2017

Electronic regulation of Mo2C and thus intrinsically improved HER activity via balanced Volmer and Heyrovsky/Tafel steps.
Radical C(sp3)–H alkenylation, alkynylation and allylation of ethers and amides enabled by photocatalysis
Authors: Paul Subhasis , Guin Joyram
Published: April 2017

A photocatalytic radical addition/elimination reaction that enables direct C(sp3)–H alkenylation, alkynylation and allylation of ethers/amides with good yield and stereoselectivity.
Rapid large area fabrication of multiscale through-hole membranes
Authors: Tahk Dongha , Paik Sang-Min , Lim Jungeun , Bang Seokyoung , Oh Soojung , Ryu Hyunryul , Jeon Noo Li
Published: April 2017

This paper describes novel fabrication methods for a large-area, freestanding micro/nano through-hole membrane constructed from versatile membrane materials using through-hole membranes on a microfluidic chip (THMMC).
Chitosan modified by γ-ray-induced grafting of poly(tributyl-(4-vinylbenzyl)phosphonium) as a biosafe and high-efficiency gene carrier
Authors: Zeng Kun , Lin Fu-xing , Xie Juan , Wang Mo-zhen , Rong Jie-lin , Zhao Yu , You Ye-zi , Asif Anila , Ge Xue-wu
Published: April 2017

Chitosan modified by γ-ray-induced grafting polymerization of tributyl-(4-vinylbenzyl)phosphonium chloride can be used as a safe and high-efficiency gene carrier.
Size and shape regulated synthesis of silver nanocapsules for highly selective and sensitive ultralow bivalent copper ion sensor application
Authors: Vellaichamy Balakumar , Periakaruppan Prakash
Published: April 2017

The development of highly robust, quantitative, sensitive and naked eye colorimetric sensing of bivalent copper ions using bio-inspired synthesis of size and shape controlled silver nanocapsules (AgNCs) is reported herein.
Low temperature decomposition of ozone by facilely synthesized cuprous oxide catalyst
Authors: Gong Shuyan , Li Wenhui , Xie Zheng , Ma Xiang , Liu Haidi , Han Ning , Chen Yunfa
Published: April 2017

The small size cubic Cu2O exhibits high ozone catalytic performance due to the facile desorption of surface O22−on {100} planes.
A smart mobile pouch as a biomechanical energy harvester towards self-powered smart wireless power transfer applications
Authors: Chandrasekhar Arunkumar , Alluri Nagamalleswara Rao , Sudhakaran M. S. P. , Mok Young Sun , Kim Sang-Jae
Published: April 2017

A Smart Mobile Pouch Triboelectric Nanogenerator (SMP-TENG) is introduced as a promising eco-friendly approach for scavenging biomechanical energy for powering next generation intelligent devices and smart phones.
Metal ion-induced supramolecular pKa tuning and fluorescence regeneration of a p-sulfonatocalixarene encapsulated neutral red dye
Authors: Shinde M. N. , Khurana R. , Barooah N. , Bhasikuttan A. C. , Mohanty J.
Published: April 2017

Supramolecular pKa shift and fluorescence quenching in a neutral red dye in the presence of p-sulfonatocalix[4/6]arenes have been demonstrated, which are relevant for the off–on switch, ion sensitive electrodes and drug delivery vehicles.
Regioselective 1,2-addition of allenamides with N-haloimides: synthesis of 2-halo allylic aminal derivatives
Authors: Li Hong-He , Li Xiao-Xiao , Zhao Zhi-Gang , Yuan Xiao , Sun Chen-Yang
Published: April 2017

An efficient new method was developed for the synthesis of 2-halo allylic aminal derivatives through regioselective 1,2-addition of allenamides withN-haloimides.
Comparison of photo- and thermally initiated polymerization-induced self-assembly: a lack of end group fidelity drives the formation of higher order morphologies
Authors: Blackman Lewis D. , Doncom Kay E. B. , Gibson Matthew I. , O'Reilly Rachel K.
Published: April 2017

We demonstrate that the PISA of identical block copolymers by either a photo or thermally initiated approach leads to structures that are both chemically and morphologically distinct.
Thermosensitive spontaneous gradient copolymers with block- and gradient-like features
Authors: Yañez-Macias Roberto , Kulai Ihor , Ulbrich Jens , Yildirim Turgay , Sungur Pelin , Hoeppener Stephanie , Guerrero-Santos Ramiro , Schubert Ulrich S. , Destarac Mathias , Guerrero-Sanchez Carlos , Harrisson Simon
Published: April 2017

Amphiphilic gradient copolymers with thermoresponsive properties were synthesized in one pot via RAFT copolymerization.
Chalcogenide hybrid inorganic/organic polymers (CHIPs) via inverse vulcanization and dynamic covalent polymerizations
Authors: Zhang Yueyan , Konopka Katrina M. , Glass Richard S. , Char Kookheon , Pyun Jeffrey
Published: April 2017

Poly(sulfur-random-styrene) was made via inverse vulcanization and used for dynamic covalent copolymerization (DCP) to incorporate novel vinylic monomers.
A high rate and stable electrode consisting of a Na3V2O2X(PO4)2F3−2X–rGO composite with a cellulose binder for sodium-ion batteries
Authors: Kumar P. Ramesh , Jung Young Hwa , Ahad Syed Abdul , Kim Do Kyung
Published: April 2017

Na3V2O2X(PO4)2F3−2X–rGO with CMC binder shows the enhanced electrochemical performance; it exhibits 98% capacity retention at 0.1C rate over 250 cycles. Also, it remits discharge capacity of 98 mA h g−1 at 0.2C in a full cell with a NaTi2(PO4)3–MWCNT.
Alignment of Ge-imogolite nanotubes in isomalt with tunable inter-tube distances
Authors: Levard Clement , Thill Antoine , Avellan Astrid , Mauroy Cyprien , Vidal Vladimir , Campos Andrea P. C. , Masion Armand , Rose Jerome
Published: April 2017

This study shows the almost perfect alignment of inorganic nanotubes (Ge-imogolite) within polyol filaments.
Ferroelectric fatigue in layered perovskites from self-energy corrected density functional theory
Authors: Xue Kan-Hao , Fonseca Leonardo R. C. , Miao Xiang-Shui
Published: April 2017

We employed GGA-1/2 to investigate the band alignment between platinum and various layered perovskite Aurivillius ferroelectrics. A model is proposed for ferroelectric fatigue in bismuth titanate based on our calculation.
Poly(vinyl alcohol)–cationic cellulose copolymer encapsulated SiO2 stationary phase for hydrophilic interaction liquid chromatography
Authors: Peng Yahui , Zhang Feifang , Pan Xiao , Hou Yanjie , Yang Bingcheng
Published: April 2017

A poly(vinyl alcohol)–cationic cellulose copolymer encapsulated SiO2 HILIC stationary phase is described, which exhibits excellent separation for various analytes.
Efficient interfacial interaction for improving mechanical properties of polydimethylsiloxane nanocomposites filled with low content of graphene oxide nanoribbons
Authors: Huang Neng-Jian , Zang Jing , Zhang Guo-Dong , Guan Li-Zhi , Li Shi-Neng , Zhao Li , Tang Long-Cheng
Published: April 2017

GONR-filled H-t-PDMS nanocomposites were fabricated by using a facile solvent-free process, and the reinforcement efficiency of GONRs at low filler content is superior to those of the other carbon nano-fillers.
Graphene oxide-based silsesquioxane-crosslinked networks – synthesis and rheological behavior
Authors: Namvari Mina , Du Lei , Stadler Florian J.
Published: April 2017

Click reaction between octa(3-azidopropyl)polyhedral oligomeric silsesquioxane (POSS–(N3)8) and heavily alkyne-decorated graphene oxide (GO) has led to crosslinking POSS with GO.
Supramolecular assembly of a phosphole-based moiety into nanostructures dictated by alkynylplatinum(ii) terpyridine complexes through non-covalent Pt⋯Pt and π–π stacking interactions: synthesis, characterization, photophysics and self-assembly behaviors
Authors: Leung Sammual Yu-Lut , Evariste Sloane , Lescop Christophe , Hissler Muriel , Yam Vivian Wing-Wah
Published: April 2017

A new class of platinum(ii) terpyridine complexes with a phosphole-derived bridging alkynyl ligand have been prepared.
Gold(iii)–arene complexes by insertion of olefins into gold–aryl bonds
Authors: Rekhroukh Feriel , Blons Charlie , Estévez Laura , Mallet-Ladeira Sonia , Miqueu Karinne , Amgoune Abderrahmane , Bourissou Didier
Published: April 2017

The synthesis and characterization of the first gold(iii)–arene complexes are described.
Integrative approach for the analysis of the proteome-wide response to bismuth drugs in Helicobacter pylori
Authors: Wang Yuchuan , Hu Ligang , Xu Feng , Quan Quan , Lai Yau-Tsz , Xia Wei , Yang Ya , Chang Yuen-Yan , Yang Xinming , Chai Zhifang , Wang Junwen , Chu Ivan K. , Li Hongyan , Sun Hongzhe
Published: April 2017

An integrative metalloproteomic approach to unveil the role of antimicrobial metals in general using bismuth as an example.
Rapid and precise determination of zero-field splittings by terahertz time-domain electron paramagnetic resonance spectroscopy
Authors: Lu Jian , Ozel I. Ozge , Belvin Carina A. , Li Xian , Skorupskii Grigorii , Sun Lei , Ofori-Okai Benjamin K. , Dincă Mircea , Gedik Nuh , Nelson Keith A.
Published: April 2017

Single-cycle THz fields induce free-induction decays from high-spin transition-metal complexes, yielding THz EPR spectra and zero-field splitting parameters from a simple tabletop measurement.
Riboflavin as a bioorthogonal photocatalyst for the activation of a PtIV prodrug
Authors: Alonso-de Castro Silvia , Ruggiero Emmanuel , Ruiz-de-Angulo Ane , Rezabal Elixabete , Mareque-Rivas Juan C. , Lopez Xabier , López-Gallego Fernando , Salassa Luca
Published: April 2017

Riboflavin acts as bioorthogonal photocatalyst to activate a PtIV anticancer prodrug in the biological environment.
Chemistry with semi-classical electrons: reaction trajectories auto-generated by sub-atomistic force fields
Authors: Bai Chen , Kale Seyit , Herzfeld Judith
Published: April 2017

Suitable force fields animate “Lewis-dots” with sufficient accuracy to efficiently predict reaction pathways without prior knowledge of products.
Double C–H bond activation of acetylene by atomic boron in forming aromatic cyclic-HBC2BH in solid neon
Authors: Jian Jiwen , Li Wei , Wu Xuan , Zhou Mingfei
Published: April 2017

Boron atoms react with acetylene to form an aromatic cyclic-HBC2BH molecule via double C–H bond activation of acetylene in solid neon.
A pH responsive complexation-based drug delivery system for oxaliplatin
Authors: Li Bin , Meng Zhao , Li Qianqian , Huang Xiayang , Kang Ziyao , Dong Huajin , Chen Junyi , Sun Ji , Dong Yansheng , Li Jian , Jia Xueshun , Sessler Jonathan L. , Meng Qingbin , Li Chunju
Published: April 2017

A responsive drug delivery system (DDS) for oxaliplatin (OX) has been designed with a view to overcoming several common drawbacks associated with this widely used anticancer agent, including fast degradation/deactivation in the blood stream, lack of tumor selectivity, and low bioavailability.
Neutral-colored semitransparent solar cells based on pseudohalide (SCN−)-doped perovskite
Authors: Chen Si , Chen Buxin , Gao Xue , Dong Bin , Hu Hsienwei , Yan Kai , Wen Wen , Zou Dechun
Published: April 2017

Using SCN− to develop neutral-colored semitransparent perovskite film yielded the maximum AVT of 50% with an efficiency of 2.4%.
Highly anion conductive, alkyl-chain-grafted copolymers as anion exchange membranes for operable alkaline H2/O2 fuel cells
Authors: Yang Cheng , Liu Lei , Han Xiaojin , Huang Zhanggen , Dong Junping , Li Nanwen
Published: April 2017

Alkyl chain grafted AEMs have been demonstrated to be highly alkaline stable, anion conductive and fuel cell operable.
Tungstic acids H2WO4 and H4WO5 as stable photocatalysts for water oxidation under visible light
Authors: Suzuki Hajime , Tomita Osamu , Higashi Masanobu , Abe Ryu
Published: April 2017

Photocatalytic O2 evolution on two tungstic acids was studied, especially focusing on the band structure and influence of electron acceptor.
A comprehensive study on the structural evolution of HfO2thin films doped with various dopants
Authors: Park M. H. , Schenk T. , Fancher C. M. , Grimley E. D. , Zhou C. , Richter C. , LeBeau J. M. , Jones J. L. , Mikolajick T. , Schroeder U.
Published: April 2017

Quantitative phase analysis is first performed on doped Hafnia films to elucidate the structural origin of unexpected ferroelectricity.
Copper-Catalyzed Aerobic Oxidation and Oxygenation of Anilines and Acetaldehydes with Dioxygen for the Concise Synthesis of 2-Aroylquinolines
Authors: Li Ziyuan , Jiao Ning , Wang Xiaoyang , Ma Lifang
Published: April 2017

A concise and efficient aerobic oxidation and oxygenation approach for the construction of 2-aroylquinolines has been developed through copper-catalyzed annulation of anilines, acetaldehydes, and dioxygen. 2,2,6,6-Tetramethylpiperidine-1-oxyl was employed to direct the selectivity toward the desired 2-aroyl products. Molecular oxygen was used in this transformation as an environmentally benign source of oxygen.
Enantioselective Approaches to 3,4-Annulated Indoles Using Organocatalytic Domino Reactions
Authors: Fochi Mariafrancesca , Bernardi Luca , Caruana Lorenzo
Published: April 2017

Organocatalytic domino reactions of 4-substituted indoles are summarized in this account. Two reactions have been developed, one with enals, activated by secondary amine catalysts via iminium ions, and one with nitroethene, using a phosphoric acid catalyst. Both reactions required solving the challenge posed by the very low nucleo­philicity of the indole substrates, which bear an electron-withdrawing Michael acceptor at C4. DFT calculations were used to shed light on the unique reaction pathway followed by the phosphoric acid catalyzed transformation, wherein a bicoordinated nitronic acid intermediate was found to evolve preferentially through an intramolecular nitro-Michael reaction, instead of the common tautomerization pathway. These reactions provide new and efficient entries to 3,4-ring-fused indoles in dia­stereo- and enantioenriched form. In more detail, the structures obtained feature a 1,3,4,5-tetrahydrobenzo[cd]indole core, which is present in the structural framework of ergot alkaloids. Indeed, the preparation of an intermediate previously used in ergot alkaloid (6,7-secoagroclavine) synthesis was possible from one of the catalytic adducts.

1 Introduction

2 Reactions of 4-Substituted Indoles with α,β-Unsaturated Aldehydes Catalyzed by Secondary Amines

3 Reactions of 4-Substituted Indoles with Nitroethene Catalyzed by Brønsted Acids

4 Conclusion
Hearing and Mortality Outcomes following Temporal Bone Fractures
Authors: Honeybrook Adam , Patki Aniruddha , Chapurin Nikita , Woodard Charles
Published: April 2017

The aim of this article is to determine hearing and mortality outcomes following temporal bone fractures. Retrospective chart review was performed of 152 patients diagnosed with a temporal bone fracture presenting to the emergency room at a tertiary care referral center over a 10-year period. Utilizing Patients’ previously obtained temporal bone computed tomographic scans and audiograms, fractures were classified based on several classification schemes. Correlations between fracture patterns, mortality, and hearing outcomes were analyzed using χ2 tests. Ossicular chain disruption was seen in 11.8% of patients, and otic capsule violation was seen in 5.9%; 22.7% of patients presented for audiologic follow-up. Seventeen patients with conductive hearing loss had air–bone gaps of 26 ± 7.5 dB (500 Hz), 27 ± 6.8 dB (1,000 Hz), 18 ± 6.2 dB (2,000 Hz), and 32 ± 7.7 dB (4,000 Hz). Two cases of profound sensorineural hearing loss were associated with otic capsule violation. No fracture classification scheme was predictive of hearing loss, although longitudinal fractures were statistically associated with ossicular chain disruption ( p < 0.01). Temporal bone fractures in patients older than 60 years carried a relative risk of death of 3.15 compared with those younger than 60 years. The average magnitude of conductive hearing loss resulting from temporal bone fracture ranged from 18 to 32 dB in this cohort. Classification of fracture type was not predictive of hearing loss, despite the statistical association between ossicular chain disruption and longitudinal fractures. This finding may be due to the low follow-up rates of this patient population. Physicians should make a concerted effort to ensure that audiological monitoring is executed to prevent and manage long-term hearing impairment.
Gutachtliche Beurteilung des traumatischen Bandscheibenvorfalls
Authors: Schwarze Martin , Weber Marc-André , Bucur Florin , Schiltenwolf Marcus
Published: April 2017

In einer Vielzahl von Rechtsgebieten soll der Sachverständige die Kausalität von Bandscheibenschäden klären: Ist der Schaden Folge eines Unfalls? Die Literatur nennt spezifische Anforderungen an den Traumamechanismus sowie zeitliche Kriterien, welche die Kausalitätsprüfung vorgeben. Es handelt sich im Wesentlichen um hochenergetische Traumen mit unmittelbar einsetzenden Funktionsstörungen. Unfallnahe MRT-Untersuchungen haben im gutachterlichen Beurteilungsprozess überragende Bedeutung zur Sicherung des Körpererstschadens. Bei der Prüfung des haftungsbegründenden Zusammenhangs müssen konkurrierende Ursachen gewürdigt werden. Da sich die juristischen Anforderungen der Kausalitätsprüfung in Zivil- und Sozialrecht unterscheiden, bedarf es der Kenntnis der Rechtsnormen. Ein Prüfschema wird vorgestellt, das den Begutachtungsprozess über Einstiegs-, Realisierungs- und Entscheidungsebene unterstützt.