bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ein beständiges 1,2‐Dihydrophosphasilen‐Addukt
Authors: Hansen Kerstin , Szilvási Tibor , Blom Burgert , Driess Matthias 
Published: October 2015

AbstractDie Reaktion des Arylchlorosilylen‐NHC‐Addukts ArSi(NHC)Cl (1; Ar=2,6‐Trip2‐C6H3, NHC=(MeC)2(NMe)2C) mit einem Moläquivalent LiPH2.dme (dme=1,2‐Dimethoxyethan) liefert das erste 1,2‐Dihydrophosphasilen‐Addukt ArSi(NHC)(H)PH (2). Dieses Produkt ist in Lösung instabil und kann eine Kopf‐Schwanz‐Dimerisierung unter Bildung von [ArSi(H)‐PH]2 (3) und “freiem” NHC eingehen. Weitere Stabilisierung von 2 mittels Komplexierung mit {W(CO)5} liefert den isolierbaren 1,2‐Dihydrophosphasilen‐Wolfram‐Komplex [ArSi(NHC)(H)P(H)W(CO)5] (4). Zusätzlich konnte das 1‐Silyl‐2‐hydrophosphasilen ArSi(NHC)(H)PSiMe3 (5) synthetisiert und strukturell charakterisiert werden. Dichtefunktionalrechnungen bestätigen, dass die SiP‐Bindung in 2 und 4 hauptsächlich zwitterionisch ist, mit drastisch reduziertem Doppelbindungscharakter.
Halogenated Phenazines that Potently Eradicate Biofilms, MRSA Persister Cells in Non‐Biofilm Cultures, and Mycobacterium tuberculosis
Authors: Garrison Aaron T. , Abouelhassan Yasmeen , Kallifidas Dimitris , Bai Fang , Ukhanova Maria , Mai Volker , Jin Shouguang , Luesch Hendrik , Huigens Robert W. 
Published: October 2015

AbstractConventional antibiotics are ineffective against non‐replicating bacteria (for example, bacteria within biofilms). We report a series of halogenated phenazines (HP), inspired by marine antibiotic 1, that targets persistent bacteria. HP 14 demonstrated the most potent biofilm eradication activities to date against MRSA, MRSE, and VRE biofilms (MBEC=0.2–12.5 μM), as well as the effective killing of MRSA persister cells in non‐biofilm cultures. Frontline MRSA treatments, vancomycin and daptomycin, were unable to eradicate MRSA biofilms or non‐biofilm persisters alongside 14. HP 13 displayed potent antibacterial activity against slow‐growing M. tuberculosis (MIC=3.13 μM), the leading cause of death by bacterial infection around the world. HP analogues effectively target persistent bacteria through a mechanism that is non‐toxic to mammalian cells and could have a significant impact on treatments for chronic bacterial infections.
Sulfur‐Limonene Polysulfide: A Material Synthesized Entirely from Industrial By‐Products and Its Use in Removing Toxic Metals from Water and Soil
Authors: Crockett Michael P. , Evans Austin M. , Worthington Max J. H. , Albuquerque Inês S. , Slattery Ashley D. , Gibson Christopher T. , Campbell Jonathan A. , Lewis David A. , Bernardes Gonçalo J. L. , Chalker Justin M. 
Published: October 2015

AbstractA polysulfide material was synthesized by the direct reaction of sulfur and d‐limonene, by‐products of the petroleum and citrus industries, respectively. The resulting material was processed into functional coatings or molded into solid devices for the removal of palladium and mercury salts from water and soil. The binding of mercury(II) to the sulfur‐limonene polysulfide resulted in a color change. These properties motivate application in next‐generation environmental remediation and mercury sensing.
Closing the Nanographene Gap: Surface‐Assisted Synthesis of Peripentacene from 6,6′‐Bipentacene Precursors
Authors: Rogers Cameron , Chen Chen , Pedramrazi Zahra , Omrani Arash A. , Tsai Hsin‐Zon , Jung Han Sae , Lin Song , Crommie Michael F. , Fischer Felix R. 
Published: October 2015

AbstractThe thermally induced cyclodehydrogenation reaction of 6,6′‐bipentacene precursors on Au(111) yields peripentacene stabilized by surface interactions with the underlying metallic substrate. STM and atomic‐resolution non‐contact AFM imaging reveal rectangular flakes of nanographene featuring parallel pairs of zig‐zag and armchair edges resulting from the lateral fusion of two pentacene subunits. The synthesis of a novel molecular precursor 6,6′‐bipentacene, itself a synthetic target of interest for optical and electronic applications, is also reported. The scalable synthetic strategy promises to afford access to a structurally diverse class of extended periacenes and related polycyclic aromatic hydrocarbons as advanced materials for electronic, spintronic, optical, and magnetic devices.
Magnesium Corrosion Triggered Spontaneous Generation of H2O2 on Oxidized Titanium for Promoting Angiogenesis
Authors: Park Jimin , Du Ping , Jeon Jin‐Kyung , Jang Gun Hyuk , Hwang Mintai Peter , Han Hyung‐Seop , Park Kwideok , Lee Kwan Hyi , Lee Jee‐Wook , Jeon Hojeong , Kim Yu‐Chan , Park Jong Woong , Seok Hyun‐Kwang , Ok Myoung‐Ryul 
Published: October 2015

AbstractAlthough the use of reactive oxygen species (ROS) has been extensively studied, current systems employ external stimuli such as light or electrical energy to produce ROS, which limits their practical usage. In this report, biocompatible metals were used to construct a novel electrochemical system that can spontaneously generate H2O2 without any external light or voltage. The corrosion of Mg transfers electrons to Au‐decorated oxidized Ti in an energetically favorable process, and the spontaneous generation of H2O2 in an oxygen reduction reaction was revealed to occur at titanium by combined spectroscopic and electrochemical analyses. The controlled release of H2O2 noticeably enhanced in vitro angiogenesis even in the absence of growth factors. Finally, a new titanium implant prototype was developed by Mg incorporation, and its potential for promoting angiogenesis was demonstrated.
Preparation of a novel modified ceramic membrane for removal of nickel ions from aqueous phase
Authors: Zeng Jianxian , Qian Zhaohui , Zhang Xuejun , Zhou Hu , Zhang Peng , Yi Lianggang , Tian Jun 
Published: October 2015

AbstractA novel modified ceramic membrane (CM‐SiO2‐A) has been prepared with the depositing and grafting technologies for removal of Ni2+ from aqueous solutions. Firstly, the silica was deposited onto the surface of initial ceramic membrane (CM) by using the in situ hydrolysis deposition method and activated to obtain the silanol groups. Then, 3‐[2‐(2‐aminoethylamino)ethylamino]propyl‐trimethoxysilane was grafted onto the silica layer to obtain the CM‐SiO2‐A. The CM‐SiO2‐A was characterized by scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, X‐ray diffraction, Fourier transform‐infrared spectroscopy, and thermogravimetric analysis. Further, the change of water flux and separation of Ni2+ were studied by using the modified membrane. Results showed that the water flux of CM‐SiO2‐A was decreased by 84.79% compared with the CM. The CM‐SiO2‐A had a much higher total rejection rate of Ni2+ (77.24%) than that of the un‐grafted membrane (1.02%) at initial Ni2+concentration of 10 mg/L and exhibits the potential for separation of low concentration of Ni2+ from aqueous solutions. Copyright © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
Preparation of polysiloxane phosphonic acid doped polybenzimidazole high‐temperature proton‐exchange membrane
Authors: Li Huilin , Shen Chunhui , Yin Shanshan , Li Wei 
Published: October 2015

ABSTRACTPolysiloxane phosphonic acid doped polybenzimidazole (PBI) high‐temperature membranes were fabricated in this study. Polysiloxane phosphonic acid instead of phosphoric acid was used as a proton conductor to prevent acid from leaking. The membrane samples with different amounts of PBI were prepared and characterized with respect to the structure, thermal properties, oxidative stability, proton conductivity, and mechanical properties. The Fourier transform infrared results show that hydrogen bonds formed between PBI and polysiloxane phosphonic acid. Thermal analysis confirmed that the temperature at which membrane experienced 10% weight loss was above 230°C. None of the membrane samples broke into pieces after Fenton reagent testing. The proton conductivity of the membrane samples with 5% PBI was up to 0.034 S/cm at 140°C under nominally anhydrous conditions. The tensile strength of the membrane samples with 10% PBI was 18.3 MPa. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42956.
Local repair procedure for carbon‐fiber‐reinforced plastics by refilling with a thermoset matrix
Authors: Küchler Kristin , Staiger Elias , Hund Rolf‐Dieter , Diestel Olaf , Kirsten Martin , Cherif Chokri 
Published: October 2015

ABSTRACTTextile‐reinforced composites have given rise to an increasingly important key technology for lightweight construction in aerospace, automotive, civil engineering, and many other industries. Because there exists no suitable repair procedure for carbon‐fiber‐reinforced plastics (CFRPs), damaged parts have to be replaced completely; this is extremely disadvantageous both ecologically and economically. With fiber‐reinforced composites used being more and more often, fast and efficient methods for the local repair of damaged CFRPs are essential. In this article, a novel repair procedure for CFRP is presented. The thermal activation by IR radiation of oxide semiconductors was used to locally degrade the thermoset matrix of the damaged CFRP through the maintenance of its structural stability and properties. The matrix‐free textile structure was then refilled with a thermoset epoxy matrix. Carbon fibers from the treated area were characterized with scanning electron microscopy, IR spectroscopy, thermogravimetric analysis, and subsequently, tensile strength for single fibers to verify the effectiveness of the procedure. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42964.
Behavioural interactions of diamondback terrapins with crab pots demonstrate that bycatch reduction devices reduce entrapment
Authors: McKee Rebecca K. , Cecala Kristen K. , Dorcas Michael E. 
Published: October 2015

Abstract

Diamondback terrapins (Malaclemys terrapin) have experienced declines throughout their range, and accidental mortality in crab pots is a significant conservation concern. To minimize the risk of terrapins entering crab pots, researchers have suggested the use of bycatch reduction devices (BRDs) to reduce the size of crab pot openings and thereby exclude terrapins from entering crab pots. Despite these recommendations, few studies have observed terrapin interactions with BRDs and effectively evaluated the efficacy of these devices at preventing the entry of terrapins into pots.
The objective of this study was to determine the effect of BRD presence and orientation on terrapin behaviour around crab pots and overall terrapin capture rates.
In a controlled laboratory setting, terrapins investigated crab pots more frequently when crab pots were baited with fish versus chicken. Terrapins were captured more frequently when BRDs were not installed. The presence of the BRDs also increased the length of time necessary for a terrapin to enter a crab pot and decreased the proportion of entries relative to the number of investigations. Vertically‐oriented BRDs were more effective than horizontally‐oriented BRDs at reducing terrapin captures.
To prevent the continued decline of terrapin populations due to crab fisheries, it is recommended that crabbers avoid the use of fish as bait in crab pots to reduce the attractiveness of pots to terrapins and fit all crab pots with vertically‐oriented BRDs to reduce terrapin entrapment.
Copyright © 2015 John Wiley & Sons, Ltd.
Restoration ecology of coastal lagoons: new methods for the prediction of ecological trajectories and economic valuation
Authors: De Wit Rutger , Rey‐Valette Helene , Balavoine Juliette , Ouisse Vincent , Lifran Robert 
Published: October 2015

Abstract

Conservation of the seven lagoons of the Palavas complex (southern France) has been severely impaired by nutrient over‐enrichment during at least four decades. The effluents of the Montpellier wastewater treatment plant (WWTP) represented the main nutrient input. To improve the water quality of these lagoons, this WWTP was renovated and upgraded and, since the end of 2005, its effluents have been discharged 11 km offshore into the Mediterranean (total investment €150 M).
Possibilities of ecosystem restoration as part of a conservation programme were explored by a focus group of experts. Their tasks were: (i) to evaluate the impact of the reduction of the nutrient input; (ii) if necessary, to design additional measures for an active restoration programme; and (iii) to predict ecosystem trajectories for the different cases. Extension of Magnoliophyta meadows can be taken as a proxy for ecosystem restoration as they favour the increase of several fish (seahorse) and bird (ducks, swans, herons) species, albeit they represent a trade‐off for greater flamingos. Additional measures for active ecosystem restoration were only recommended for the most impaired lagoon Méjean, while the least impaired lagoon Ingril is already on a trajectory of spontaneous recovery.
A multiple contingent valuation considering four different management options for the Méjean lagoon was used in a pilot study based on face‐to‐face interviews with 159 respondents. Three levels of ecosystem restoration were expressed in terms of recovery of Magnoliophyta meadows, including their impact on emblematic fish and avifauna. These were combined with different options for access (status quo, increasing access, increasing access with measures to reduce disturbance). The results show a willingness of local populations to pay per year about €25 for the highest level of ecological restoration, while they were only willing to allocate about €5 for additional footpaths and hides.
Copyright © 2015 John Wiley & Sons, Ltd.
A Superior Na3V2(PO4)3‐Based Nanocomposite Enhanced by Both N‐Doped Coating Carbon and Graphene as the Cathode for Sodium‐Ion Batteries
Authors: Guo Jin‐Zhi , Wu Xing‐Long , Wan Fang , Wang Jie , Zhang Xiao‐Hua , Wang Rong‐Shun 
Published: October 2015

AbstractA superior Na3V2(PO4)3‐based nanocomposite (NVP/C/rGO) has been successfully developed by a facile carbothermal reduction method using one most‐common chelator, disodium ethylenediamintetraacetate [Na2(C10H16N2O8)], as both sodium and nitrogen‐doped carbon sources for the first time. 2D‐reduced graphene oxide (rGO) nanosheets are also employed as highly conductive additives to facilitate the electrical conductivity and limit the growth of NVP nanoparticles. When used as the cathode material for sodium‐ion batteries, the NVP/C/rGO nanocomposite exhibits the highest discharge capacity, the best high‐rate capabilities and prolonged cycling life compared to the pristine NVP and single‐carbon‐modified NVP/C. Specifically, the 0.1 C discharge capacity delivered by the NVP/C/rGO is 116.8 mAh g−1, which is obviously higher than 106 and 112.3 mAh g−1 for the NVP/C and pristine NVP respectively; it can still deliver a specific capacity of about 80 mAh g−1 even at a high rate up to 30 C; and its capacity decay is as low as 0.0355 % per cycle when cycled at 0.2 C. Furthermore, the electrochemical impedance spectroscopy was also implemented to compare the electrode kinetics of all three NVP‐based cathodes including the apparent Na diffusion coefficients and charge‐transfer resistances.
Conditional survival in patients with chronic myeloid leukemia in chronic phase in the era of tyrosine kinase inhibitors
Authors: Sasaki Koji , Kantarjian Hagop M. , Jain Preetesh , Jabbour Elias J. , Ravandi Farhad , Konopleva Marina , Borthakur Gautam , Takahashi Koichi , Pemmaraju Naveen , Daver Naval , Pierce Sherry A. , O'Brien Susan M. , Cortes Jorge E. 
Published: October 2015

BACKGROUNDTyrosine kinase inhibitors (TKIs) significantly improve survival in patients with chronic myeloid leukemia in chronic phase (CML‐CP). Conditional probability provides survival information in patients who have already survived for a specific period of time after treatment.METHODSCumulative response and survival data from 6 consecutive frontline TKI clinical trials were analyzed. Conditional probability was calculated for failure‐free survival (FFS), transformation‐free survival (TFS), event‐free survival (EFS), and overall survival (OS) according to depth of response within 1 year of the initiation of TKIs, including complete cytogenetic response, major molecular response, and molecular response with a 4‐log or 4.5‐log reduction.RESULTSA total of 483 patients with a median follow‐up of 99.4 months from the initiation of treatment with TKIs were analyzed. Conditional probabilities of FFS, TFS, EFS, and OS for 1 additional year for patients alive after 12 months of therapy ranged from 92.0% to 99.1%, 98.5% to 100%, 96.2% to 99.6%, and 96.8% to 99.7%, respectively. Conditional FFS for 1 additional year did not improve with a deeper response each year. Conditional probabilities of TFS, EFS, and OS for 1 additional year were maintained at >95% during the period.CONCLUSIONSIn the era of TKIs, patients with chronic myeloid leukemia in chronic phase who survived for a certain number of years maintained excellent clinical outcomes in each age group. Cancer 2016;122:238–248. © 2015 American Cancer Society.
Improvement of left ventricular filling and pulmonary artery pressure following unilateral renal artery total occlusion stenting in a patient with recurrent congestive heart failure complicated by renovascular hypertension and renal failure
Authors: Kawarada Osami , Kitajima Ryota , Sugano Yasuo , Noguchi Teruo , Anzai Toshihisa , Ogawa Hisao , Yasuda Satoshi 
Published: October 2015

AbstractRecurrent congestive heart failure related to renal artery disease is an important clinical entity that is typically observed in bilateral renal artery stenosis or solitary functioning kidney. However, the relationship between heart failure and unilateral renal artery disease, especially that with total occlusion, remains unclear. We report a successful management by unilateral renal artery total occlusion stenting with an evidence of improvement of left ventricular filling and pulmonary artery pressure in case of a patient suffering from medical therapy resistant recurrent congestive heart failure with preserved ejection fraction.
Diversity of Coordination Modes, Structures, and Properties of Chiral Metal–Organic Coordination Complexes of the Drug Voriconazole
Authors: Li Qing , Wu Tao , Lai Jian‐Cheng , Fan Zeng‐Lu , Zhang Wei‐Qiang , Zhang Guo‐Fang , Cui Dan , Gao Zi‐Wei 
Published: October 2015

AbstractFive chiral metal–organic coordination compounds (CMOCCs), {[Cu4O(Lvcz)2Br4]·H2O}n (1), {[Cd(HLvcz)2(NO3)2]·0.25H2O}n (2), {[Cu2(HLvcz)2I2]·H2O}n (3), {[Ag(HLvcz)2]CF3SO3}n (4), and {[Co2(HLvcz)(bdc)2(dmf)2]·dmf·3H2O}n (5; HLvcz = voriconazole, bdc = terephthalic acid), have been successfully prepared and structurally characterized. The chiral drug ligand voriconazole exhibits diverse modes of coordination in the five complexes, resulting in the formation of various architectures and properties. Complex 1 is a tetranuclear cluster, complex 2 exhibits a 1D double‐strand chain structure in which hydrogen‐bonding interactions lead to a 3D supramolecular network, complex 3 is a 1D chain structure with two different types of rings based on the rhombic dimer Cu2I2, complex 4 is a 2D structure with 63 topology that contains four types of C–H···F hydrogen bonds, and complex 5 affords a 3D framework with sxa topology. Their properties, such as chirality, second‐order nonlinear optical (NLO) effects, ferroelectric behavior and dielectric anomalies, have been investigated in the solid state.
The evolutionary psychology of small‐scale versus large‐scale politics: Ancestral conditions did not include large‐scale politics
Authors: Geher Glenn , Carmen Rachael , Guitar Amanda , Gangemi Bernadine , Sancak Aydin Gökçe , Shimkus Andrew 
Published: October 2015

AbstractThe current research question sought to examine political psychology as it relates to evolutionary mismatch. The basic hypothesis is that people will be more cognitively prepared to think about political situations that are relatively small in scale compared with political situations that are large in scale. This research also examined the effects of whether the political situation is highly relevant to oneself. To test these questions, 49 young adults were presented with four sets of instructions. They were asked to write paragraphs describing (i) a large‐scale, self‐relevant political situation, (ii) a large‐scale non‐self‐relevant political situation, (iii) a small‐scale self‐relevant political situation, and (iv) a small‐scale non‐self‐relevant political situation. Paragraphs generated by the participants were analyzed using Tyler's () Writing Sample Readability Analyzer. Results demonstrated that paragraphs designed for large‐scale political situations had more sentences and were less readable than paragraphs designed for small‐scale situations—while paragraphs designed for small‐scale political situations were relatively readable and included more words per sentence, suggesting that, consistent with the core hypothesis, participants had an easier time processing information related to small‐scale political situations than large‐scale political situations. Implications for the nature of modern politics are discussed.
Repetitive Transcranial Magnetic Stimulation Changes Cerebral Oxygenation on the Left Dorsolateral Prefrontal Cortex in Bulimia Nervosa: A Near‐Infrared Spectroscopy Pilot Study
Authors: Sutoh Chihiro , Koga Yasuko , Kimura Hiroshi , Kanahara Nobuhisa , Numata Noriko , Hirano Yoshiyuki , Matsuzawa Daisuke , Iyo Masaomi , Nakazato Michiko , Shimizu Eiji 
Published: October 2015

AbstractPrevious studies showed that food craving in eating disorders can be weakened with high‐frequency repetitive transcranial magnetic stimulation (rTMS) on the left dorsolateral prefrontal cortex (DLPFC). The aims of this study were to assess cerebral oxygenation change induced with rTMS and to assess the short‐term impact of rTMS on food craving and other bulimic symptoms in patients with bulimia nervosa (BN). Eight women diagnosed with BN according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria participated in this study. We measured haemoglobin concentration changes in the DLPFC with near‐infrared spectroscopy during cognitive tasks measuring self‐regulatory control in response to food photo stimuli, both at baseline and after a single session of rTMS. Subjective ratings for food cravings demonstrated significant reduction. A significant decrease in cerebral oxygenation of the left DLPFC was also observed after a single session of rTMS. Measurement with NIRS after rTMS intervention may be applicable for discussing the mechanisms underlying rTMS modulation in patients with BN. Copyright © 2015 John Wiley & Sons, Ltd and Eating Disorders Association.