bluuebunny/crossref_metadata_2025 huggingface dataset:
Si‐based Clathrates with Partial Substitution by Zn and Ga: K8Zn3.5Si42.5, Rb7.9Zn3.6Si42.4, and Cs8–xGa8–ySi38+y
Authors: Baran Volodymyr , Fässler Thomas F.
Published: May 2015

The clathrate Cs8–xGa8–ySi38+y was obtained from a stoichiometric reaction of the elements in an alkali metal halide flux, whereas K8Zn3.5Si42.5 and Rb7.9Zn3.6Si42.4 were synthesized using a combined alkali metal halide/zinc flux. These methods allow to get virtually single‐phase materials with good crystallinity. The compounds were analyzed and characterized by means of powder and single‐crystal X‐ray diffraction methods. Rather unexpectedly, the substitution of Si by Zn in K8Zn3.5Si42.5 and Rb7.9Zn3.6Si42.4 also occurs at the atomic site 24k beside the usually observed 6c site, which has not been found before for intermetallic clathrates with alkali metal guest atoms and substitution of the host atom by group 12 elements. The size effect of the guest atoms Rb and Cs on the alkali metal content of Ga‐Si and Zn‐Si clathrates is established. Furthermore, magnetic and transport measurements (electrical resistivity, Seebeck coefficient and thermal conductivity) are reported.
Clinical Issues‐May 2015
Authors: Wood Amber , Van Wicklin Sharon A. , Brubaker Scott A. , Spruce Lisa
Published: May 2015

This Month

Update on perioperative Ebola precautions

Key words: Ebola, PPE, airborne, droplet, respirator.

Contaminated rigid sterilization containers

Key words: rigid sterilization containers, filters, valves, latches, gaskets.

Requirements for storing autologous tissue

Key words: tissue bank, autologous tissue, US Food and Drug Administration, human cells, delayed replantation or autotransplantation.

Storing autologous human vein autografts

Key words: autografts, storage media, Tiprotec®, X‐Vivo 10®, American Association of Tissue Banks.

Dropped autografts

Key words: autograft, pulse lavage, wound classification, dropped grafts, cranial bone graft.

Antimicrobial and fluid barrier fabrics

Key words: antimicrobial fabrics, fluid barrier fabrics, surgical site infections, scrub attire, surgical attire.
Back to Basics: Specimen Management
Authors: Van Wicklin Sharon A.
Published: May 2015

Specific actions for handling various types of specimens may differ; however, the management process is essentially the same. Accurate specimen management requires effective multidisciplinary communication, minimal distractions, and awareness of the opportunities for error. When advocating for patients and working with members of the health care team to provide a safe perioperative environment, perioperative nurses should adhere to best practices for specimen management and strive to prevent specimen‐related errors that may lead to inaccurate or incomplete diagnoses, the need for additional procedures, and perhaps most importantly, physical and psychological injury to patients.
An Interview with Quiara Alegría Hudes
Authors: Young Harvey
Published: May 2015

Quiara Alegría Hudes (Fig. 1) won the Pulitzer Prize for Drama for Water by the Spoonful, the second play in her “Elliot” trilogy. She is a two-time Pulitzer Prize finalist for Elliot, A Soldier's Fugue, the first play in the trilogy, and the musical In the Heights. Her plays include The Happiest Song Plays Last (which ends the trilogy), 26 Miles, Yemaya's Belly, and Daphne's Dive. In 2012, the Los Angeles Times praised Hudes as “one of the most poetic, socially clued-in young voices in the American theater.” In this engaging interview with Editor Harvey Young, Quiara Alegría Hudes talks about the role of music in her plays, socioeconomic isolation in cities, the inspiration for some of her plays, and the importance of asking the deep question.
“I'll Show You the Bowery from Chatham Square to the Cooper Institute”: The Entertainment and Ethics of Slumming in the Theatre
Authors: Westgate J. Chris
Published: May 2015

In 1894, Robert Neilson Stephens's playOn the Bowerydebuted at Haverly's Fourteenth Street Theatre in New York City, with Steve Brodie, who had won fame for purportedly jumping from the Brooklyn Bridge years earlier, playing himself. Although Brodie's entrance is delayed until the second act, he rather quickly commandeers the plot and leads the rest of the characters through the Bowery and across the Brooklyn Bridge (where he reenacts his jump to enthusiastic audiences) to an East River pier, where he leaps into a burning building to rescue one of those perpetually distressed damsels from the 1890s. Naturally, mainstream newspapers were rather critical ofOn the Bowery’s literary merits. TheNew York Heraldclaimed that the play made “no dramatic pretensions,” and thePhiladelphia Inquireremphasized that it left the critic not “overly impressed with the play as a play.” TheNew York Timestook an especially harsh line. Lamenting the play's “threadbare plot” and “no originality,” and overreliance on Brodie's celebrity, its critic used the production as an opportunity to advance rigid delineations of highbrow and lowbrow, upper class and lower class, and literature and leisure. For what this reviewer described as the “Brodie audience,” the working-class spectators who crowded the gallery and boisterously cheered Brodie's every feat,On the Bowerygratified a yearning for escapism and entertainment.On the Bowerywas not, according to theTimes, geared to what the reviewer described as the “Booth audience,” the middle- and upper-class spectators who normally prized Edwin Booth's Shakespearean performances: “even the management does not take [Brodie] seriously.” If box office success is any measure, however, many from both the Booth and Brodie audiences did takeOn the Boweryseriously. Productions of the play toured for nearly three years, and a number of plays emulatedOn the Boweryduring the next five years. If Bruce McConachie is right that what is relevant is not “whether . . . melodramas were any good” but what audiences were watching and what meanings they were constructing from these plays, then theatre history should takeOn the Boweryseriously too.
Abnormal FISH in patients with immunoglobulin light chain amyloidosis is a risk factor for cardiac involvement and for death
Authors: Warsame R , Kumar S K , Gertz M A , Lacy M Q , Buadi F K , Hayman S R , Leung N , Dingli D , Lust J A , Ketterling R P , Lin Y , Russell S , Hwa L , Kapoor P , Go R S , Zeldenrust S R , Kyle R A , Rajkumar S V , Dispenzieri A
Published: May 2015

Importance of interphase fluorescent in situ hybridization (FISH) with cytoplasmic staining of immunoglobulin FISH (cIg-FISH) on bone marrow is not well understood in light chain amyloidosis (AL). This is in contrast with multiple myeloma where prognostic and treatment related decisions are dependent on cytogenetic testing. This retrospective study reviewed 401 AL patients with cIg-FISH testing performed at our institution between 2004 and 2012. Eighty-one percent of patients had an abnormal cIg-FISH. Common abnormalities involved translocations of chromosome 14q32 (52%), specifically: t(11;14) (43%), t(14;16) (3%) and t(4;14) (2%). Other common abnormalities include monosomy 13/deletion 13q (30%), trisomies 9 (20%), 15 (14%), 11 (10%) and 3 (10%). Median overall survival for this cohort of patients is 3.5 years. When plasma cell burden was greater than 10% trisomies predicted for worse survival (44 vs 19 months), and when it was ⩽10% t(11;14) predicted for worse survival (53 months vs not reached). Abnormal cIg-FISH was significantly associated with advanced cardiac involvement, and remained a prognostic factor on multivariate analysis. This large AL cohort demonstrates that abnormal FISH at diagnosis is prognostic for survival and advanced cardiac disease. Particularly, trisomies and t(11;14) affect survival when degree of plasma cell burden is considered.
Soil-foraging animals alter the composition and co-occurrence of microbial communities in a desert shrubland
Authors: Eldridge David J , Woodhouse Jason N , Curlevski Nathalie J A , Hayward Matthew , Brown Mark V , Neilan Brett A
Published: May 2015

Animals that modify their physical environment by foraging in the soil can have dramatic effects on ecosystem functions and processes. We compared bacterial and fungal communities in the foraging pits created by bilbies and burrowing bettongs with undisturbed surface soils dominated by biocrusts. Bacterial communities were characterized by Actinobacteria and Alphaproteobacteria, and fungal communities by Lecanoromycetes and Archaeosporomycetes. The composition of bacterial or fungal communities was not observed to vary between loamy or sandy soils. There were no differences in richness of either bacterial or fungal operational taxonomic units (OTUs) in the soil of young or old foraging pits, or undisturbed soils. Although the bacterial assemblage did not vary among the three microsites, the composition of fungi in undisturbed soils was significantly different from that in old or young foraging pits. Network analysis indicated that a greater number of correlations between bacterial OTUs occurred in undisturbed soils and old pits, whereas a greater number of correlations between fungal OTUs occurred in undisturbed soils. Our study suggests that digging by soil-disturbing animals is likely to create successional shifts in soil microbial and fungal communities, leading to functional shifts associated with the decomposition of organic matter and the fixation of nitrogen. Given the primacy of organic matter decomposition in arid and semi-arid environments, the loss of native soil-foraging animals is likely to impair the ability of these systems to maintain key ecosystem processes such as the mineralization of nitrogen and the breakdown of organic matter, and to recover from disturbance.
A gel polymer electrolyte based on a novel synthesized matrix of a self-doped polymer of h-poly(methyl methacrylate-vinyl trismethoxy silane)
Authors: Huang Yun , Huang Rui , Gong Shengdong , Cao Haijun , Lin Yuanhua , Yang Man , Li Xing
Published: May 2015

The monomers of methyl methacrylate and vinyl trismethoxy silane were chosen to synthesize the novel self-doped polymer of (h-P(MMA-VTMS)), and then the obtained polymer was used as matrix to prepare GPE.
Heavy atom quenched coumarin probes for sensitive and selective detection of biothiols in living cells
Authors: Ji Wengang , Ji Yuzhuo , Jin Qingqing , Tong Qingxiao , Tang Xinjing
Published: May 2015

Fluorescence coumarin sensors for biothiols were developed based on the quenching mechanism of the heavy atom effect.
Automated multiwell fluorescence lifetime imaging for Förster resonance energy transfer assays and high content analysis
Authors: Kelly Douglas J. , Warren Sean C. , Alibhai Dominic , Kumar Sunil , Alexandrov Yuriy , Munro Ian , Margineanu Anca , McCormack Jessica , Welsh Natalie J. , Serwa Remigiusz A. , Thinon Emmanuelle , Kongsema Mesayamas , McGinty James , Talbot Clifford , Murray Edward J. , Stuhmeier Frank , Neil Mark A. A. , Tate Edward W. , Braga Vania M. M. , Lam Eric W.-F. , Dunsby Christopher , French Paul M. W.
Published: May 2015

An HCA-FLIM instrument is presented alongside exemplar oligomerisation, intermolecular and intramolecular FRET assays that require robust measurement of small lifetime changes.
An electrochemical sensor for the determination of phoxim based on a graphene modified electrode and molecularly imprinted polymer
Authors: Tan Xuecai , Wu Jiawen , Hu Qi , Li Xiaoyu , Li Pengfei , Yu Huicheng , Li Xiaoyan , Lei Fuhou
Published: May 2015

The electrochemical impedance spectra of Fe(CN)63−/4− at NIP/graphene/GCE (a), MIP/GCE (b), the bare GCE (c), and MIP/graphene/GCE (d).
Pendant ionic groups of conjugated oligoelectrolytes govern their ability to intercalate into microbial membranes
Authors: Thomas A. W. , Catania C. , Garner L. E. , Bazan G. C.
Published: May 2015

The ionic groups of lipid membrane intercalating conjugated oligoelectrolytes affect their interaction with E. coli and application in microbial fuel cells.
Efficient masking of corrosion and fission products such as Ni(ii) and Pd(ii) in the presence of the minor actinide Am(iii) using hydrophilic anionic or cationic bis-triazines
Authors: Lewis Frank W. , Harwood Laurence M. , Hudson Michael J. , Müllich Udo , Geist Andreas
Published: May 2015

We report the first examples of hydrophilic 3,3′-bis(1,2,4-triazine) ligands and their application as masking agents to suppress the extraction of corrosion and fission products found in used nuclear fuel solutions.
The dual role of borohydride depending on reaction temperature: synthesis of iridium and iridium oxide
Authors: Chakrapani Kalapu , Sampath S.
Published: May 2015

Temperature dependent reaction products are observed when borohydride is present in aqueous solutions containing Ir3+.
Understanding the role of iron in the magnetism of Fe doped ZnO nanoparticles
Authors: Beltrán J. J. , Barrero C. A. , Punnoose A.
Published: May 2015

Fe does not contribute directly to ferromagnetic signals, but promotes the formation of defects which are considered as main sources.
Conduction mechanism, impedance spectroscopic investigation and dielectric behavior of La0.5Ca0.5−xAgxMnO3 manganites with compositions below the concentration limit of silver solubility in perovskites (0 ≤ x ≤ 0.2)
Authors: Rahmouni H. , Smari M. , Cherif B. , Dhahri E. , Khirouni K.
Published: May 2015

This study presents the electrical properties, complex impedance analysis and dielectrical behavior of La0.5Ca0.5−xAgxMnO3 manganites.
Triple bottom line costs for multiple potable reuse treatment schemes
Authors: Schimmoller L. J. , Kealy M. J. , Foster S. K.
Published: May 2015

Select appropriate potable reuse treatment technologies to meet the need while minimizing the sum of financial, environmental and social costs.
Research highlights: antibiotic resistance genes: from wastewater into the environment
Authors: Tan David T. , Shuai Danmeng
Published: May 2015

We highlight the effects of treated and untreated wastewater on antibiotic resistance genes (ARGs) in the environment, attenuation of ARGs following land application of wastewater solids, and a quantitative model for natural transformation.
Synthesis of carbon quantum dots from cabbage with down- and up-conversion photoluminescence properties: excellent imaging agent for biomedical applications
Authors: Alam Al-Mahmnur , Park Byung-Yong , Ghouri Zafar Khan , Park Mira , Kim Hak-Yong
Published: May 2015

The synthesis of luminescent and biocompatible carbon quantum dots is demonstrated from cabbage, a new carbonaceous biomaterial, for bio-imaging.
Atom economical synthesis of oxindoles by metal-catalyzed intramolecular C–C bond formation under solvent-free and aerobic conditions
Authors: Son Se In , Lee Won Koo , Choi Jieun , Ha Hyun-Joon
Published: May 2015

Diversely substituted oxindoles were obtained from atom economical direct C–C bond formation reactions of various substituted anilides and pyridinylamides with metal salts and oxides.
Renewable conjugated acids as curatives for high-performance rubber/silica composites
Authors: Lin Tengfei , Zhang Xuhui , Tang Zhenghai , Guo Baochun
Published: May 2015

Renewable conjugated acids effectively cure epoxidized diene-based rubber into a high-performance elastomer, in the absence of any toxic additives.
High-throughput screening for modulators of cellular contractile force
Authors: Park Chan Young , Zhou Enhua H. , Tambe Dhananjay , Chen Bohao , Lavoie Tera , Dowell Maria , Simeonov Anton , Maloney David J. , Marinkovic Aleksandar , Tschumperlin Daniel J. , Burger Stephanie , Frykenberg Matthew , Butler James P. , Stamer W. Daniel , Johnson Mark , Solway Julian , Fredberg Jeffrey J. , Krishnan Ramaswamy
Published: May 2015

Using cellular contractile force as the target, we report a new high-throughput screening technology.
A fully sealed plastic chip for multiplex PCR and its application in bacteria identification
Authors: Xu Youchun , Yan He , Zhang Yan , Jiang Kewei , Lu Ying , Ren Yonghong , Wang Hui , Wang Shan , Xing Wanli
Published: May 2015

A reversible centrifugation-based multiplex PCR chip is constructed and applied to identify 8 pathogenic bacteria and 13 drug-resistance genes.
An insight into antagonist binding and induced conformational dynamics of class B GPCR corticotropin-releasing factor receptor 1
Authors: Xu Junli , Wang Zhonghua , Liu Pi , Li Dongmei , Lin Jianping
Published: May 2015

The binding of small-molecule antagonists, CP-376395 and MTIP, would induce conformational dynamics behaviors of CRF1R.
Hot off the press
Authors: Hill Robert A. , Sutherland Andrew
Published: May 2015

A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as coprisamide A from a bacterium isolated from Copris tripartitus.
Real-time investigation of human topoisomerase I reaction kinetics using an optical sensor: a fast method for drug screening and determination of active enzyme concentrations
Authors: Kristoffersen Emil L. , Jørgensen Line A. , Franch Oskar , Etzerodt Michael , Frøhlich Rikke , Bjergbæk Lotte , Stougaard Magnus , Ho Yi-Ping , Knudsen Birgitta R.
Published: May 2015

Human DNA topoisomerase I (hTopI) is a nuclear enzyme that catalyzes relaxation of super helical tension that arises in the genome during essential DNA metabolic processes.
Low affinity binding of plasma proteins to lipid-coated quantum dots as observed by in situ fluorescence correlation spectroscopy
Authors: Klapper Yvonne , Maffre Pauline , Shang Li , Ekdahl Kristina N. , Nilsson Bo , Hettler Simon , Dries Manuel , Gerthsen Dagmar , Nienhaus G. Ulrich
Published: May 2015

Extremely low binding affinities of plasma proteins to MHPC lipid-enwrapped quantum dots have been revealed by fluorescence correlation spectroscopy measurements.
Design and synthesis of new fluconazole analogues
Authors: Pore Vandana S. , Agalave Sandip G. , Singh Pratiksha , Shukla Praveen K. , Kumar Vikash , Siddiqi Mohammad I.
Published: May 2015

The synthesis of new fluconazole analogues containing two different 1,2,3-triazole units and an amide group is described. All the compounds showed very high antifungal activity and no toxicity.
Chelate effects in sulfate binding by amide/urea-based ligands
Authors: Jia Chuandong , Wang Qi-Qiang , Begum Rowshan Ara , Day Victor W. , Bowman-James Kristin
Published: May 2015

Chelate and mini-chelate effects on sulfate binding was explored for six amide-, amide/amine-, urea-, and urea/amine-based ligands in water-mixed DMSO-d6. The urea hosts were highly selective for SO42−, and displayed enhanced binding and greater tolerance for increasing water content as the number of chelate groups increased.
Main chain dendronized hyperbranched polymers: convenient synthesis and good second-order nonlinear optical performance
Authors: Wu Wenbo , Wang Zhipeng , Xiao Rui , Xu Zhen , Li Zhen
Published: May 2015

By using low generation dendrimers as macromonomers, two main chain dendronized hyperbranched polymers, with good comprehensive nonlinear optical performance, were prepared conveniently with satisfying yields through a one-pot “A3 + B2” approach.
Facile anionic synthesis of a well-controlled thermally cross-linkable block copolymer for polymer-based resistive memory device applications
Authors: Kang Beom-Goo , Jang Jingon , Song Younggul , Kim Myung-Jin , Lee Takhee , Lee Jae-Suk
Published: May 2015

A well-defined block copolymer containing a thermally cross-linkable ethynyl group has been synthesized by living anionic polymerization for polymer-based resistive memory device applications.
Evaluating chemical ligation techniques for the synthesis of block copolypeptides, polypeptoids and block copolypept(o)ides: a comparative study
Authors: Klinker Kristina , Holm Regina , Heller Philipp , Barz Matthias
Published: May 2015

We describe the efficient synthesis of block copolypeptides, polypeptoids as well as block copolypept(o)ides by chemical ligation techniques.
Thermally enhanced self-propelled droplet motion on gradient surfaces
Authors: Chakraborty Monojit , Ghosh Udita Uday , Chakraborty Suman , DasGupta Sunando
Published: May 2015

Enhanced droplet movement at elevated temperatures.
Flexible touch sensor with finely patterned Ag nanowires buried at the surface of a colorless polyimide film
Authors: Kim Youngmin , Song Chang-Hyun , Kwak Min-Gi , Ju Byeong-Kwon , Kim Jong-Woong
Published: May 2015

Finely patterned AgNW electrodes were embedded in a colorless polyimide, resulting in a flexible touch sensor.
A multisite-functionalised polymer for the extraction of thorium(iv) from water
Authors: Xu Qing-Hua , Ding San-Yuan , Pan Duo-Qiang , Wu Wang-Suo
Published: May 2015

A multisite functionalised polymer (MFP-1) was synthesized and applied in the effective extraction of thorium (Th(iv)) ions from water, which exhibits a maximum Th(iv) sorption capacity of 0.39 mmol g−1 at 298 K and pH 3.8.
Advances in selective catalytic oxidation of ammonia to dinitrogen: a review
Authors: Chmielarz Lucjan , Jabłońska Magdalena
Published: May 2015

Selective catalytic oxidation of ammonia to dinitrogen.
Circumferentially oriented microfiber scaffold prepared by wet-spinning for tissue engineering of annulus fibrosus
Authors: Xu Baoshan , Du Lilong , Zhang Jiamin , Zhu Meifeng , Ji Shenglu , Zhang Yang , Kong Deling , Ma Xinlong , Yang Qiang , Wang Lianyong
Published: May 2015

Repairing damaged annulus fibrosus (AF) is one of the most challenging topics for treating intervertebral disc (IVD) disease.
MFA zeotype catalyst: a greener approach for the synthesis of INH azomethine scaffolds
Authors: Raghuvanshi Devendra S. , Mahulikar Pramod P. , Meshram Jyotsna S.
Published: May 2015

Herein, we report the green and efficient synthesis of some pharmacologically important azomethine derivatives of isoniazide (INH) using Modified Fly Ash (MFA) as an excellent zeotic solid acid catalyst.
Multiple cross-linked hydroxypropylcellulose–succinate–salicylate: prodrug design, characterization, stimuli responsive swelling–deswelling and sustained drug release
Authors: Abbas Azhar , Hussain Muhammad Ajaz , Amin Muhammad , Tahir Muhammad Nawaz , Jantan Ibrahim , Hameed Abdul , Bukhari Syed Nasir Abbas
Published: May 2015

Multiple cross-linked hydroxypropylcellulose–succinate–salicylate.
Non-aqueous preparation of LaPO4nanoparticles and their application for ethanol dehydration
Authors: Afanasiev Pavel
Published: May 2015

Control of the phase polymorph and morphology of LaPO4has been achieved in room temperature non-aqueous precipitations by changing the nature of the solvent. The hexagonal variety of LaPO4shows high performance in ethanol dehydration.
A novel morphology development of micro-injection molded isotactic polypropylene
Authors: Wang Shiwei , Wang Zhenwei , Zhao Na , Jiang Jing , Li Qian
Published: May 2015

The appearance of a stripe morphology in MIM-iPP was induced by the optical path difference of the polarized light on the polymer crystal.
Hydrogen evolution inhibition byl-serine at the negative electrode of a lead–acid battery
Authors: Deyab M. A.
Published: May 2015

The inhibition effect ofl-serine on the hydrogen evolution at the negative electrode of a lead–acid battery (Pb) in 5.0 M H2SO4has been studied by hydrogen evolution and electrochemical methods.
Oxidized carbon nanotubes as an efficient metal-free electrocatalyst for the oxygen reduction reaction
Authors: Wang Xin , Ouyang Canbin , Dou Shuo , Liu Dongdong , Wang Shuangyin
Published: May 2015

Acid treated method can efficiently incorporate a large number of oxygen containing functional groups including –OH, –COOH, CO which play a key role in the enhancement of ORR activity.
Novel quaternized mesoporous silica nanoparticle modified polysulfone-based composite anion exchange membranes for alkaline fuel cells
Authors: Liu Lingdi , Tong Cuiyan , He Yao , Zhao Yanxu , Hu Bo , Lü Changli
Published: May 2015

A polysulfone-based composite membrane with QMSNs showed improved conductivity, good morphologies without phase separation, acceptable mechanical properties, and alkaline and oxide resistance, opening up a new way to fabricate organic–inorganic composite AEMs.
Microcrystalline β-RbNd(MoO4)2: spin polarizing DFT+U
Authors: Reshak A. H.
Published: May 2015

Using the density functional theory plus Hubbard Hamiltonian we have investigated the spin up/down electronic band structure, density of states, electronic charge density distribution and the dispersion of the optical properties of microcrystalline β-RbNd(MoO4)2.
Manganese-phosphomolybdate molecular catalysts for the electron transfer reaction of ferricyanide to ferrocyanide
Authors: Gong Kaining , Liu Yunping , Han Zhangang
Published: May 2015

Highly reduced phosphomolybdates are catalytically active for the electron transfer reaction of ferricyanide to ferrocyanide.
One-pot synthesis of indolizine via 1,3-dipolar cycloaddition using a sub-equivalent amount of K2Cr2O7 as an efficient oxidant under base free conditions
Authors: Wang Chao , Hu Huayou , Xu Juanfang , Kan Weiqiu
Published: May 2015

X = Cl or Br; EWG1, EWG2 = electron withdrow group, one-pot reaction, 29 examples, yields from moderate to high, gram scale-up potential confirmed.
Enhanced visible light photocatalytic activity of a floating photocatalyst based on B–N-codoped TiO2 grafted on expanded perlite
Authors: Wang Xin , Wang Wei , Wang Xuejiang , Zhang Jing , Gu Zaoli , Zhou Lijie , Zhao Jianfu
Published: May 2015

Floatable photocatalyst for in situ environmental remediation with enhanced visible light driven photocatalytic activity.
Production of gamma-valerolactone from sugarcane bagasse over TiO2-supported platinum and acid-activated bentonite as a co-catalyst
Authors: Putro Jindrayani N. , Kurniawan Alfin , Soetaredjo Felycia E. , Lin Shi-Yow , Ju Yi-Hsu , Ismadji Suryadi
Published: May 2015

Sugarcane bagasse was transformed into GVL by a hydrothermal reaction and catalytic hydrogenation. The TiO2-supported Pt in combination with acid-activated bentonite as a co-catalyst has proved to be active and highly selective toward GVL formation.
TiO2 hollow spheres with nanoporous structures fabricated by anodization of Ti particles
Authors: Yanagishita Takashi , Imaizumi Masahiko , Toshiaki Kondo , Masuda Hideki
Published: May 2015

TiO2 hollow spheres with nanoporous structures were prepared by anodization of small Ti particles. The geometrical structures of TiO2 porous layers could be controlled by adjusting the anodization conditions.
Nanonickel catalyst reinforced with silicate for methane decomposition to produce hydrogen and nanocarbon: synthesis by co-precipitation cum modified Stöber method
Authors: Ashik U. P. M. , Wan Daud W. M. A.
Published: May 2015

Co-precipitation cum modified Stöber method is a continuous process avoiding application of higher temperature treatment before supporting nanometals with SiO2, irrespective of pre-preparation methods.
Chemical looping of metal nitride catalysts: low-pressure ammonia synthesis for energy storage
Authors: Michalsky R. , Avram A. M. , Peterson B. A. , Pfromm P. H. , Peterson A. A.
Published: May 2015

Design principles for reducible metal nitride catalysts are developed and demonstrated for ambient-pressure solar-driven N2 reduction into NH3.
Fluoride binding to an organoboron wire controls photoinduced electron transfer
Authors: Chen Jing , Wenger Oliver S.
Published: May 2015

The efficiency of organoboron wires as mediators of long-range electron transfer can be controlled by anion binding.
Two types of Cassie-to-Wenzel wetting transitions on superhydrophobic surfaces during drop impact
Authors: Lee Choongyeop , Nam Youngsuk , Lastakowski Henri , Hur Janet I. , Shin Seungwon , Biance Anne-Laure , Pirat Christophe , “CJ” Kim Chang-Jin , Ybert Christophe
Published: May 2015

Different types of Cassie-to-Wenzel transitions on superhydrophobic surfaces with the impact velocity of water drop.
A supramolecular assembly of cross-linked azobenzene/polymers for a high-performance light-driven actuator
Authors: Qin Chengqun , Feng Yiyu , Luo Wen , Cao Chen , Hu Wenping , Feng Wei
Published: May 2015

Light-driven flexible actuators based on a photo-responsive polymer draw much attention due to their great ability for rapid and reversible light-to-work transduction based on a large deformation.
Al conductive haloaluminate-free non-aqueous room-temperature electrolytes
Authors: Mandai Toshihiko , Johansson Patrik
Published: May 2015

Appropriate combinations of aluminum trifluoromethanesulfonate,N-methylacetamide, and urea result in room temperature ternary electrolytes with high ionic conductivities.
Octahedral high voltage LiNi0.5Mn1.5O4 spinel cathode: enhanced capacity retention of hybrid aqueous capacitors with nitrogen doped graphene
Authors: Aswathy R. , Kesavan T. , Kumaran K. T. , Ragupathy P.
Published: May 2015

A new hybrid aqueous supercapacitor (HSC) has been constructed using electrospun octahedral LiNi0.5Mn1.5O4 as the cathode and nitrogen doped graphene as the anode. HSC exhibits remarkable capacity retention upon cycling due to the presence of (111) planes on the surface of facets offering good contact between the electrodes and electrolyte.
Remarkable oxygen barrier films based on a layered double hydroxide/chitosan hierarchical structure
Authors: Pan Ting , Xu Simin , Dou Yibo , Liu Xiaoxi , Li Zhongze , Han Jingbin , Yan Hong , Wei Min
Published: May 2015

Organic–inorganic hybrid films are fabricated via an alternate assembly of a chitosan (CTS) polymer and hierarchical layered double hydroxide (H-LDH), which exhibit tremendous oxygen barrier properties with high stability as well as long-term maintenance.
Fabrication of nitrogen-doped graphite felts as positive electrodes using polypyrrole as a coating agent in vanadium redox flow batteries
Authors: Park Sangki , Kim Hansung
Published: May 2015

A novel method for preparing nitrogen-doped graphite felts as positive electrodes in vanadium redox flow batteries was developed and studied. These materials were synthesized by directly coating a thin polypyrrole layer on the graphite felt surface followed by subsequent carbonization in the presence of Co (NGF-Co).
Organized intrafibrillar mineralization, directed by a rationally designed multi-functional protein
Authors: Ping Hang , Xie Hao , Su Bao-Lian , Cheng Yi-bing , Wang Weimin , Wang Hao , Wang Yucheng , Zhang Jinyong , Zhang Fan , Fu Zhengyi
Published: May 2015

A multi-functional protein (MBP)–BSP–HAP is rationally designed to induce apatite periodically arranged inside collagen fibrils in synergy with polyacrylic acid.
Synthesis of magnetic Fe3O4–Au hybrids for sensitive SERS detection of cancer cells at low abundance
Authors: Qiu Yanchun , Deng Dan , Deng Qianwen , Wu Ping , Zhang Hui , Cai Chenxin
Published: May 2015

A facile and rapid SERS-based immunoassay for living cancer cells using magnetic Fe3O4–Au hybrid nanoparticles is reported.
G-quadruplex-based logic gates for HgII and AgI ions employing a luminescent iridium(iii) complex and extension of metal-mediated base pairs by polymerase
Authors: Ma Dik-Lung , Lin Sheng , Lu Lihua , Wang Modi , Hu Chong , Liu Li-Juan , Ren Kangning , Leung Chung-Hang
Published: May 2015

We report herein the synthesis of a series of cyclometallated iridium(iii) complexes as luminescent G-quadruplex-selective probes to construct AND, OR and INHIBIT logic gates for the detection of HgII and AgI ions.
Tunable emission in dye-doped truxene-based organogels through RET
Authors: Galisteo-López Juan F. , Gómez-Esteban Sandra , Gómez-Lor Berta , López Cefe
Published: May 2015

A novel organic system with tunable emission is demonstrated comprising a truxene-based organogel which resonantly transfers energy to a dopant organic molecule.
Red emissive organic light-emitting diodes based on codeposited inexpensive CuI complexes
Authors: Ni Tianchi , Liu Xiaochen , Zhang Tao , Bao Hongliang , Zhan Ge , Jiang Nan , Wang Jianqiang , Liu Zhiwei , Bian Zuqiang , Lu Zhenghong , Huang Chunhui
Published: May 2015

Red emissive CuI complexes and their organic light-emitting diodes were prepared by codeposition of CuI and isoquinoline based ligands.
New AIEgens containing dibenzothiophene-S,S-dioxide and tetraphenylethene moieties: similar structures but very different hole/electron transport properties
Authors: Zhan Xuejun , Wu Zhongbin , Lin Yuxuan , Tang Sheng , Yang Jie , Hu Jie , Peng Qian , Ma Dongge , Li Qianqian , Li Zhen
Published: May 2015

For the first time, the control of the transport properties of AIEgens can be realized by conveniently modifying their linkage mode.
The two-component signalling networks of Mycobacterium tuberculosis display extensive cross-talk in vitro
Authors: Agrawal Ruchi , Pandey Akancha , Rajankar Mayooreshwar P. , Dixit Narendra M. , Saini Deepak K.
Published: May 2015

Two-component systems (TCSs), which contain paired sensor kinase and response regulator proteins, form the primary apparatus for sensing and responding to environmental cues in bacteria. TCSs are thought to be highly specific, displaying minimal cross-talk, primarily due to the co-evolution of the participating proteins. To assess the level of cross-talk between the TCSs of Mycobacterium tuberculosis, we mapped the complete interactome of the M. tuberculosis TCSs using phosphotransfer profiling. Surprisingly, we found extensive cross-talk among the M. tuberculosis TCSs, significantly more than that in the TCSs in Escherichia coli or Caulobacter crescentus, thereby offering an alternate to specificity paradigm in TCS signalling. Nearly half of the interactions we detected were significant novel cross-interactions, unravelling a potentially complex signalling landscape. We classified the TCSs into specific ‘one-to-one’ and promiscuous ‘one-to-many’ and ‘many-to-one’ circuits. Using mathematical modelling, we deduced that the promiscuous signalling observed can explain several currently confounding observations about M. tuberculosis TCSs. Our findings suggest an alternative paradigm of bacterial signalling with significant cross-talk between TCSs yielding potentially complex signalling landscapes.
Pharmacology Issues Related to Dementia Syndrome of Depression in Elderly Residents of Long-Term Care Settings
Authors: Ball Angel L. , Gray Adina S.
Published: May 2015

Pharmacological intervention for depressive symptoms in institutionalized elderly is higher than the population average. Among the patients on such medications are those with a puzzling mix of symptoms, diagnosed as “dementia syndrome of depression,” formerly termed “pseudodementia”. Cognitive-communicative changes, potentially due to medications, complicate the diagnosis even further. This discussion paper reviews the history of the terminology of “pseudodementia,” and examines the pharmacology given as treatment for depressive symptoms in the elderly population that can affect cognition and communication. Clinicians can reduce the risk of misdiagnosis or inappropriate treatment by having an awareness of potential side effects, including decreased attention, memory, and reasoning capacities, particularly due to some anticholinergic medications. A team approach to care should include a cohesive effort directed at caution against over-medication, informed management of polypharmacology, enhancement of environmental/communication supports and quality of life, and recognizing the typical nature of some depressive signs in elderly institutionalized individuals.
Equivalent slant range model for geosynchronous SAR
Authors: Zhang Xin , Huang Puming , Wang Weiwei
Published: May 2015

Geosynchronous (GEO) synthetic aperture radar (SAR) has an orbit height of 36 000 km which results in long round‐trip time. Thus, the ‘Stop–Go’ assumption and the conventional slant range model for low‐Earth‐orbit (LEO) SAR lose effectiveness in GEO SAR. A concise signal propagation delay equation of GEO SAR is presented and furthermore an equivalent slant range model is proposed. To verify the accuracy of the proposed model, the dichotomy method is applied to obtain the real slant range. In addition, the effects of the ‘Stop–Go’ assumption on GEO SAR are analysed by theoretical analysis. Promising results were obtained by several experiments.
Reflective displacement sensors with monolithically integrated VCSELs and RCEPDs
Authors: Song Y.M. , Ju G.W. , Choi H.J. , Lee Y.W. , Na B.H. , Lee Y.T.
Published: May 2015

Micro‐scale, reflective‐type optical displacement sensors have been developed by monolithic integration of vertical cavity surface‐emitting lasers (VCSELs) and resonant cavity‐enhanced photodetectors (RCEPDs). This compact sensor (700 × 700 μm) consists of an oxide‐confined VCSEL that is surrounded by an RCEPD and can measure the linear distance with a measurement range of ∼10 mm, which is comparable to that of conventional displacement sensors. Fabrication details and sensor performances are discussed.
Wideband phase inverter integrated in Doherty power amplifier for linearity improvement
Authors: Mung S.W.Y. , Chan W.S.
Published: May 2015

A wideband phase inverter (WPI) integerated in a Doherty power amplifier (DPA) is proposed for linearity improvement. This WPI is integrated at the output of the carrier amplifier in the DPA while keeping the same size as the conventional DPA. The input signal is excited at both the carrier and the peaking amplifiers and then the amplified signals are combined by the push–pull toplogy. This results in the cancellation of the even‐order harmonic terms as well as the cancellation of IMD3 by proper bias selection. An experiment shows the peak power‐added efficiency (PAE) is around 50% at 21 dBm output power with linearity improvement as the adjacent channel leakage ratio (ACLR) under a wideband code division multiple access signal is around −40 dBc. This improves around 7 dB in ACLR under the same output power and PAE and better error vector magnitude (EVM) compared with the single‐stage class AB amplifier.
Digitally tuned degeneration resistance to improve linearity of boost factors for analogue equalisers
Authors: Wang Zinan , Gai Weixin
Published: May 2015

An analogue equaliser with a novel digitally tuned variable degeneration resistance is realised in a 65 nm CMOS technology. Implemented with three parallel resistance branches and one serial resistance branch to well fit the optimal conductance curve, the proposed variable degeneration resistance is exploited to achieve a wide boost range while significantly improving the linearity of the tuned boost factors compared with the equaliser with a traditional degeneration resistance structure.
Method for determination of capture velocity of charge carriers into quantum well in semiconductor laser
Authors: Sokolova Z.N. , Bakhvalov K.V. , Lyutetskiy A.V. , Pikhtin N.A. , Tarasov I.S. , Asryan L.V.
Published: May 2015

A simple method for the determination of the capture velocity of charge carriers from a three‐dimensional (3D) region (waveguide region) into a 2D region (quantum well) is proposed. The method is based on measurement of the threshold current density and internal differential quantum efficiency in a semiconductor laser structure. The method also allows determining the 2D carrier density in a quantum well, which is otherwise not easy to measure in a multilayer laser structure.
Performance analysis of automatic generation control of interconnected power systems with delayed mode operation of area control error
Authors: Nanda Janardan , Sharma Dushyant , Mishra Sukumar
Published: May 2015

This study presents automatic generation control (AGC) of interconnected power systems comprising of two thermal and one hydro area having integral controllers. Emphasis is given to a delay in the area control error for the actuation of the supplementary controller and to examine its impact on the dynamic response against no delay which is usually the practice. Analysis is based on 50% loading condition in all the areas. The system performance is examined considering 1% step load perturbation. Results reveal that delayed mode operation provides a better system dynamic performance compared with that obtained without delay and has several distinct merits for the governor. The delay is linked with reduction in wear and tear of the secondary controller and hence increases the life of the governor. The controller gains are optimised by particle swarm optimisation. The performance of delayed mode operation of AGC at other loading conditions is also analysed. An attempt has also been made to find the impact of weights for different components in a cost function used to optimise the controller gains. A modified cost function having different weights for different components when used for controller gain optimisation improves the system performance.
Guided Bone Regeneration of an Atrophic Mandible with a Heterologous Bone Block
Authors: Di Stefano DaniloAlessio , Greco GianBattista , Riboli Francesco
Published: May 2015

The aim of this work was to test the effectiveness of using enzymatically deantigenated equine bone block as a scaffold for guided bone regeneration (GBR) during a horizontal augmentation of the lower jaw. A partially edentulous atrophic mandible was augmented using an equine-derived block with an expanded polytetrafluoroethylene membrane. After 8.5 months, two bone core samples were collected at the augmentation site, and implants were placed. A definitive prosthesis delivered 6 months after implant placement provided excellent functional and aesthetic rehabilitation throughout the follow-up period. Histological and histomorphometrical analysis of the biopsies showed newly formed bone to be present and the residual biomaterial was still undergoing remodeling. Comparison of cone beam computed tomography scans taken before augmentation and 26 months later showed maintenance of ridge width and possible corticalization of the vestibular augmented ridge side. The equine-derived bone block placed in accordance with GBR principles provided a successful clinical, radiographic, and histological outcome.
Tracing the evolution of the two energy gaps in magnesium diboride under pressure
Authors: Kononenko V. , Tarenkov V. , Belogolovskii M. , Döring S. , Schmidt S. , Seidel P.
Published: May 2015

We have studied transport characteristics of mesoscopic multiple-mode superconducting contacts formed between two grains in bulk two-gap magnesium diboride. The experimental setup was realized by driving a normal-metal tip into MgB2 polycrystalline sample and proved to be extremely stable, providing possibility to perform pressure experiments at low temperatures. It is argued that in our procedure a small piece of the superconducting electrode is captured by the tip apex and, as a result, two junctions in series are formed: a junction between a tip and MgB2 grain and a mesoscopic disordered contact between two superconducting pellets. Although the relative weight of the first junction resistance was considerably less, its contribution is shown to be important for the comparison of measured data with expected gap values. Two hallmarks of multiple Andreev reflections inside the MgB2–c–MgB2 contact (c stands for a high-transparent constriction), a zero-bias 1/|V|-like singularity of the dc differential conductance and peaks connected to the two gap values, have been revealed. Finally, we report results of a hydrostatic compression experiment showing the evolution of the MgB2 gap values with pressure. In contrast to the theoretical expectations, we have observed an increase of the smaller gap Δπ whereas the larger gap Δσ decreased with increasing pressure as it should be for the electron–phonon pairing mechanism. We argue that the so-called separable model of anisotropy effects is insufficient to describe such changes and only improved two-band versions are capable to reproduce the pressure effect on the energy gaps in magnesium diboride.
Local spin excitations in the rectangular ferromagnetic semiconductor nanowires
Authors: Tanriverdiyev V. A.
Published: May 2015

A Green function analysis is used to study spin-waves excitations in a ferromagnetic semiconductor nanowires. The expressions of Green function for different spins of ferromagnetic nanowires are derived. The nanowire is modeled as having a cubic cross section. The results are illustrated numerically for a particular choice of parameters
Features of the magnetic properties of quasi-one-dimensional β-TeVO4 magnets at low temperatures
Authors: Savina Yu. O. , Bludov O. M. , Pashchenko V. A. , Gnatchenko S. L. , Lemmens P. , Berger H.
Published: May 2015

The effect of a magnetic field on the magnetic susceptibility χ(T) and the temperature of the three magnetic phase transitions in single-crystal β-TeVO4 is studied at low temperatures. The H-T phase diagram is obtained for H||b and H ⊥ b. A tricritical point with coordinates H* = 3.2 ± 0.1 T and T* = 3.0 ± 0.1 K is found for H||b.
Hall and magnetoresistance factors of a Bi0.88Sb0.12 single crystal doped with Te
Authors: Gasanova Kh. A. , Tairov B. A.
Published: May 2015

Analysis of the experimentally found dependences of the Hall and magnetoresistance coefficients in the temperature range 77–300 K was presented for the Bi0.88Sb0.12 single-crystal alloy doped with 0.2 at. % of Te. On the basis of these data, the temperature dependences of the Hall and magnetoresistance factors were determined.
Magnetoresonance properties of manganite La1−xSrxMnO3 (x = 0.15; 0.225; 0.3; 0.45; 0.6)
Authors: Kalmykova T. V. , Nedukh S. V. , Polevoy S. Yu. , Kharchenko A. A. , Tarapov S. I. , Belozorov D. P. , Pogorily A. N. , Polek T. I. , Pashchenko V. A. , Bludov O. M.
Published: May 2015

Magnetoresonance (in the frequency range 22–80 GHz) and magnetostatic studies of the La1−xSrxMnO3 compound with strontium impurity concentrations x = 0.15; 0.225; 0.3; 0.45; 0.6, performed at room and liquid helium temperatures. A splitting of the electron magnetic resonance curve is detected for x = 0.3, which serves as evidence of mixed magnetic phases. The samples' concentration dependences of saturation magnetization are determined based on the obtained experimental data.
Discrete impulses in ephaptically coupled nerve fibers
Authors: Maïna I. , Tabi C. B. , Ekobena Fouda H. P. , Mohamadou A. , Kofané T. C.
Published: May 2015

We exclusively analyze the condition for modulated waves to emerge in two ephaptically coupled nerve fibers. Through the multiple scale expansion, it is shown that a set of coupled cable-like Hodgkin-Huxley equations can be reduced to a single differential-difference nonlinear equation. The standard approach of linear stability analysis of a plane wave is used to predict regions of parameters where nonlinear structures can be observed. Instability features are shown to be importantly controlled not only by the ephaptic coupling parameter, but also by the discreteness parameter. Numerical simulations, to verify our analytical predictions, are performed, and we explore the longtime dynamics of slightly perturbed plane waves in the coupled nerve fibers. On initially exciting only one fiber, quasi-perfect interneuronal communication is discussed along with the possibility of recruiting damaged or non-myelinated nerve fibers, by myelinated ones, into conduction.