bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of the unidirectional spin heat conveyer effect in a 200 nm thin Yttrium Iron Garnet film
Authors: Wid Olga , Bauer Jan , Müller Alexander , Breitenstein Otwin , Parkin Stuart S. P. , Schmidt Georg
Published: June 2016

We have investigated the unidirectional spin wave heat conveyer effect in sub-micron thick yttrium iron garnet (YIG) films using lock-in thermography (LIT). Although the effect is small in thin layers this technique allows us to observe asymmetric heat transport by magnons which leads to asymmetric temperature profiles differing by several mK on both sides of the exciting antenna, respectively. Comparison of Damon-Eshbach and backward volume modes shows that the unidirectional heat flow is indeed due to non-reciprocal spin-waves. Because of the finite linewidth, small asymmetries can still be observed when only the uniform mode of ferromagnetic resonance is excited. The latter is of extreme importance for example when measuring the inverse spin-Hall effect because the temperature differences can result in thermovoltages at the contacts. Because of the non-reciprocity these thermovoltages reverse their sign with a reversal of the magnetic field which is typically deemed the signature of the inverse spin-Hall voltage.
Nitrogen deposition and management practices increase soil microbial biomass carbon but decrease diversity in Moso bamboo plantations
Authors: Li Quan , Song Xinzhang , Gu Honghao , Gao Fei
Published: June 2016

Because microbial communities play a key role in carbon (C) and nitrogen (N) cycling, changes in the soil microbial community may directly affect ecosystem functioning. However, the effects of N deposition and management practices on soil microbes are still poorly understood. We studied the effects of these two factors on soil microbial biomass carbon (MBC) and community composition in Moso bamboo plantations using high-throughput sequencing of the 16S rRNA gene. Plantations under conventional (CM) or intensive management (IM) were subjected to one of four N treatments for 30 months. IM and N addition, both separately and in combination, significantly increased soil MBC while decreasing bacterial diversity. However, increases in soil MBC were inhibited when N addition exceeded 60 kg N∙ha−1∙yr−1. IM increased the relative abundances of Actinobacteria and Crenarchaeota but decreased that of Acidobacteria. N addition increased the relative abundances of Acidobacteria, Crenarchaeota and Actinobacteria but decreased that of Proteobacteria. Soil bacterial diversity was significantly related to soil pH, C/N ratio and nitrogen and available phosphorus content. Management practices exerted a greater influence over regulation of the soil MBC and microbial diversity compared to that of N deposition in Moso bamboo plantations.
Exploiting the potential of aryl acetamide derived Zn(ii) complexes in medicinal chemistry: synthesis, structural analysis, assessment of biological profile and molecular docking studies
Authors: Sultana Kishwar , Zaib Sumera , Hassan Khan Najm ul , Khan Imtiaz , Shahid Khadija , Simpson Jim , Iqbal Jamshed
Published: June 2016

This study reports an unprecedented series of aryl acetamide derived Zn(ii) complexes as frontline enzyme inhibitors as well as anticancer and anti-parasitic agents.
Electrolysis-induced fast activation of the ABTS reagent for an antioxidant capacity assay
Authors: Konan K. V. , Le Tien C. , Mateescu M. A.
Published: June 2016

An improved TEAC (Trolox Equivalent Antioxidant Capacity) analytical procedure to evaluate thein vitroantioxidant capacity of some radical scavengers, including copper proteins (i.e.hemocyanin, ceruloplasmin or diamine oxidase) and some copper complexes (i.e.serine2–copper), is described.
Active tumor-targeting luminescent gold clusters with efficient urinary excretion
Authors: Wang Xiaojuan , He Hua , Wang Yanan , Wang Junying , Sun Xing , Xu Hai , Nau Werner M. , Zhang Xiaodong , Huang Fang
Published: June 2016

Novel active tumor targeting fluorescent gold nanoclusters are synthesized through a facile method.
Ni-based heterogeneous catalyst from a designed molecular precursor for the efficient electrochemical water oxidation
Authors: Kuznetsov Denis A. , Konev Dmitry V. , Komarova Natal'ya S. , Ionov Andrey M. , Mozhchil Rais N. , Fedyanin Ivan V.
Published: June 2016

Bimetallic Ni–Mo alkoxide was exploited as a single-source precursor for the production of water-oxidizing catalyst films demonstrating excellent activity and stability.
Silver migration between Au38(SC2H4Ph)24 and doped AgxAu38−x(SC2H4Ph)24 nanoclusters
Authors: Zhang Bei , Salassa Giovanni , Bürgi Thomas
Published: June 2016

A fast redistribution of metal atoms occurs upon collision between AgxAu38−x and Au38 nanoclusters in solution.
Aerobic copper-catalyzed decarboxylative thiolation
Authors: Li Minghao , Hoover Jessica M.
Published: June 2016

A copper-catalyzed decarboxylative thiolation reaction to furnish aryl sulfides using molecular oxygen as the sole oxidant is described.
SANS study on the solvated structure and molecular interactions of a thermo-responsive polymer in a room temperature ionic liquid
Authors: Hirosawa Kazu , Fujii Kenta , Ueki Takeshi , Kitazawa Yuzo , Littrell Kenneth C. , Watanabe Masayoshi , Shibayama Mitsuhiro
Published: June 2016

We have utilized SANS to quantitatively characterize the LCST-type phase behavior of PPhEtMA in d8-[C2mIm+][TFSA−].
Decay behavior of screened electrostatic surface forces in ionic liquids: the vital role of non-local electrostatics
Authors: Kjellander Roland
Published: June 2016

General theory for dense electrolytes shows why both plain exponential and oscillatory electrostatic surface forces can appear in ionic liquids.
Tunable thermal transport and mechanical properties of graphyne heterojunctions
Authors: Wang Shuaiwei , Si Yubing , Yuan Jinyun , Yang Baocheng , Chen Houyang
Published: June 2016

Tunable thermal transport and mechanical properties of graphyne heterojunctions.
Solubility and solvation of monosaccharides in ionic liquids
Authors: Teles Ana Rita R. , Dinis Teresa B. V. , Capela Emanuel V. , Santos Luís M. N. B. F. , Pinho Simão P. , Freire Mara G. , Coutinho João A. P.
Published: June 2016

Both the ionic liquid cation and the anion play a role in the solubility of monosaccharides.
Study of short-lived and early reaction intermediates in organocatalytic asymmetric amination reactions by ion-mobility mass spectrometry
Authors: Zhang Jun-Ting , Wang Hao-Yang , Zhang Xiang , Zhang Fang , Guo Yin-Long
Published: June 2016

A study of the reactive intermediates in organocatalytic asymmetric amination reactions by reactive SAESI coupled to ion-mobility mass spectrometry.
Synthesis and structural characterization of anion complexes with azacalix[2]dipyrrolylmethane: effect of anion charge on the conformation of the macrocycle
Authors: Guchhait Tapas , Mani Ganesan , Schulzke Carola
Published: June 2016

Azacalix[2]dipyrrolylmethane is flexible changing its 1,3-alternateconformation to the 1,2-alternate, partial cone or cone conformations with respect to the charge on the anion, as shown by a series of single crystal X-ray structures of inorganic mono- and dianionic complexes.
The ligand influence in stereoselective carbene transfer reactions promoted by chiral metal porphyrin catalysts
Authors: Intrieri Daniela , Carminati Daniela Maria , Gallo Emma
Published: June 2016

This Perspective illustrates the state-of-the-art of stereoselective carbene transfer reactions catalysed by chiral metal porphyrin complexes. A particular attention is focused on the active role of the porphyrin ligand to drive the carbene insertion into the target organic skeleton.
Boletus edulis ribonucleic acid – a potent apoptosis inducer in human colon adenocarcinoma cells
Authors: Lemieszek Marta Kinga , Ribeiro Miguel , Guichard Alves Helena , Marques Guilhermina , Nunes Fernando Milheiro , Rzeski Wojciech
Published: June 2016

Despite the large popularity of theBoletus edulismushroom, little is known about its influence on human health and the possibilities of its therapeutic use.
Lactobacillus casei triggers a TLR mediated RACK-1 dependent p38 MAPK pathway in Caenorhabditis elegans to resist Klebsiella pneumoniae infection
Authors: Kamaladevi Arumugam , Balamurugan Krishnaswamy
Published: June 2016

In the present study, the effect of lactic acid bacteria was investigated at the molecular level using the model organismCaenorhabditis elegansagainstKlebsiella pneumoniae.
Bioactive packaging using antioxidant extracts for the prevention of microbial food-spoilage
Authors: Moreira Diana , Gullón Beatriz , Gullón Patricia , Gomes Ana , Tavaria Freni
Published: June 2016

Bioactive food packaging is an innovative approach for the prevention of the growth of food-spoilage microorganisms.
Optimizing micropattern geometries for cell shape and migration with genetic algorithms
Authors: Albert Philipp J. , Schwarz Ulrich S.
Published: June 2016

Adhesive micropatterns have become a standard tool to control cell shape and function in cell culture.
Electrochemical evaluation of ciprofloxacin adsorption on soil organic matter
Authors: Antilen Monica , Bustos Odette , Ramirez Galo , Canales Camila , Faundez Mario , Escudey Mauricio , Pizarro Carmen
Published: June 2016

In order to evaluate humic acid–ciprofloxacin adsorption, a new electrochemical method was tested and applied to adsorption isotherm studies, which were well fitted by the Langmuir–Freundlich model.
Visible-transparent and UV/IR-opaque colloidal dispersions of Ga-doped zinc oxide nanoparticles
Authors: Trenque I. , Gaudon M. , Duguet E. , Mornet S.
Published: June 2016

ZnO:Ga supracolloidal particles are disaggregated into transparent dispersions in the visible range and may be used as an effective UV and infrared filter.
Synthesis of peptide nanofibers decorated with palladium nanoparticles and its application as an efficient catalyst for the synthesis of sulfides via reaction of aryl halides with thiourea or 2-mercaptobenzothiazole
Authors: Ghorbani-Choghamarani Arash , Taherinia Zahra
Published: June 2016

In this work supported Pd nanoparticles on a peptide nanofiber (PdNP–PNF) have been preparedviafabrication of self-assembled woven nanofiber from peptide, subsequently immobilization of palladium nanoparticles on this nanostructural compound.
Tribological behavior of a Ni matrix hybrid nanocomposite reinforced by titanium carbide nanoparticles during electro-codeposition
Authors: Benea Lidia , Caron Nadège , Raquet Olivier
Published: June 2016

TiC nanoparticles (50 nm mean diameter) were successfully electro-codeposited with nickel to obtain Ni/nano-TiC hybrid nanocomposite layers on a 304L stainless steel support with increased properties of nanohardness and wear resistance.
Development of ordered metal nanoparticle arrangements on solid supports by combining a green nanoparticle synthetic method and polymer templating for sensing applications
Authors: Blanco-Loimil M. , Pardo A. , Villar-Alvarez E. , Martínez-González R. , Topete A. , Barbosa S. , Taboada P. , Mosquera V.
Published: June 2016

One step, simple, robust and "green" methodology to fabricate high-density ordered arrays of uniform gold nanoparticles and gold nanoparticles clusters at room temperature over large areas which are suitable for high-performance SERS.
In situ dispersion of oil-based Ag nanocolloids by microdroplet coalescence and their applications in SERS detection
Authors: Du L. , Wang Y. J. , Wang K. , Shen C. , Luo G. S.
Published: June 2016

Monodispersity and size uniformity of the nanoparticles coated on film-like nanosensors are critical for detection efficiency.
Quantum interference effects in biphenyl dithiol for gas detection
Authors: Prasongkit Jariyanee , Rocha Alexandre R.
Published: June 2016

Biphenyl dithiol (BPDT) was examined for the detection of NO, NO2, NH3 and CO gas molecules using the first-principle methods. The quantum interference effects were observed in the transmission, revealing the application of BPDT as a gas sensor.
Mechanism of the gold(i)-catalyzed synthesis of imidazo-pyrimidines and imidazo-pyrazines via [3 + 2] dipolar cycloaddition: a DFT study
Authors: Zhang Xinghui , Geng Zhiyuan
Published: June 2016

The mechanisms of gold(i)-catalyzed [3 + 2] cycloaddition reactions of pyridinium N-(heteroaryl)-aminides with alkynes have been investigated using DFT calculations.
Drop-on-demand microdroplet generation: a very stable platform for single-droplet experimentation
Authors: Vaughn Bartholomew S. , Tracey Phillip J. , Trevitt Adam J.
Published: June 2016

This paper reports the performance of drop-on-demand piezo-activated microdroplet generation, investigated using microdroplet cavity enhanced fluorescence spectroscopy.
Influence of shell thickness on the dielectric properties of composites filled with Ag@SiO2 nanoparticles
Authors: Zhu Hong , Liu Zhe , Wang Fanghui , Yan Kong
Published: June 2016

Ag@SiO2/PVDF-TrFE composites were fabricated and the effects of SiO2 shell thickness on dielectric properties were studied.
Electronic, optical and thermoelectric properties of PrMO3 (M = Al, Ga, In) from first-principles calculations
Authors: Sakhya Anup Pradhan , Rai D. P. , Sandeep Sandeep , Dutta Alo , Thapa R. K. , Sinha T. P.
Published: June 2016

Though PrInO3 is structurally anisotropic it is found to be optically isotropic which is the basic requirement for ceramic scintillators.
Ternary perovskite nickel titanate/reduced graphene oxide nano-composite with improved lithium storage properties
Authors: Li Meng , Fan Xiulin , Xiao Xuezhang , Huang Xu , Jiang Yiqun , Chen Lixin
Published: June 2016

NiTiO3/reduced graphene oxide (RGO) nano-composite was first synthesized and introduced as anode materials for LIBs. The NiTiO3/RGO exhibits a higher capacity than bare NiTiO3 materials over 50 cycles.
One step solvothermal synthesis of ultra-fine N-doped TiO2 with enhanced visible light catalytic properties
Authors: Mukthar Ali S. M. Y. Mohamed , K. Y. Sandhya
Published: June 2016

Herein, we report the one-step solvothermal synthesis of nitrogen doped TiO2 using N-methyl-2-pyrollidone as solvent cum dopant. The method leads to higher surface area, highly crystalline anatase TiO2 with improved visible light response.
Facile preparation of small molecules for bulk heterojunction solar cells
Authors: Huang Huadong , Xiao Liangang , Yang Binglin , Lai Tianqi , Zhang Lin , Gao Ke , Peng Xiaobin , Cao Yong
Published: June 2016

Facile preparation of solution-processable small molecules with only two step reactions for bulk heterojunction solar cells, exhibiting a power conversion efficiency as high as 4.64%.
Curing of degraded MAPbI3perovskite films
Authors: Guo Xin , McCleese Christopher , Lin Wei-Chun , Burda Clemens
Published: June 2016

Perovskite films were prepared using a one-step solution deposition. Such films degrade over time because of the ambient humidity. Curing of degraded films through X-ray, UV and electron beam irradiation is demonstrated.
Theoretical study of the hydrolysis mechanism of dihydrocoumarin catalyzed by serum paraoxonase 1 (PON1): different roles of Glu53 and His115 for catalysis
Authors: Lin Beibei , Su Hao , Ma Guangcai , Liu Yongjun , Hou Qianqian
Published: June 2016

In the PON1-catalyzed hydrolysis of dihydrocoumarin, Glu53 is necessary whereas His115 is not essential but can promote the activity.
Highly efficient Ni–Co oxide nanoparticles on nitrogen-doped FDU-15 for aerobic benzyl alcohol oxidation
Authors: Fu Xiaoran , Wu Shujie , Li Zhifang , Yang Xiaoyuan , Wang Xiufang , Peng Ling , Hu Jing , Huo Qisheng , Guan Jingqi , Kan Qiubin
Published: June 2016

Transition bimetal (Ni, Co) oxide nanoparticles immobilized onto nitrogen-doped FDU-15 are high active and show excellent selectivity to the benzaldehyde for the oxidation of benzyl alcohol.
Effect of doping indium into a Bi2Te3 matrix on the microstructure and thermoelectric transport properties
Authors: Guo Xin , Qin Jieming , Lv Xiaoling , Deng Le , Jia Xiaopeng , Ma Hongan , Jia Hongsheng
Published: June 2016

Doping In into a Bi2Te3 matrix can significantly transform textural features and decrease the lattice thermal conductivity.
Epitaxial growth and metallicity of rutile MoO2thin film
Authors: Ahn EunYoung , Seo Yu-Seong , Cho JinHyung , Lee Inwon , Hwang Jungseek , Jeen Hyoungjeen
Published: June 2016

We demonstrate an unconventional epitaxial relation between monoclinic MoO2film and hexagonal Al2O3. Clear Drude absorption mode and other direct optical transitions are unveiled by optical spectroscopies.
Enhanced aqueous oxidation activity and durability of simple manganese(iii) salen complex axially anchored to maghemite nanoparticles
Authors: Rezaeifard Abdolreza , Jafarpour Maasoumeh , Farrokhi Alireza , Parvin Sousan , Feizpour Fahimeh
Published: June 2016

Attachment of simple Mn(iii) salen to functionalized magnetic nanoparticles provided a robust magnetically recoverable nanocatalyst for aqueous oxygenation of various substrates using n-Bu4NHSO5.
The effect of spermine on the structure, thermal stability and activity of bovine pancreatic trypsin
Authors: Momeni Lida , Shareghi Behzad , Saboury Ali Akbar , Farhadian Sadegh
Published: June 2016

This work studied the interaction between spermine and trypsin at pH 8.0.
An AIE based tetraphenylethylene derivative for highly selective and light-up sensing of fluoride ions in aqueous solution and in living cells
Authors: Jiang Guoyu , Liu Xiang , Wu Yongquan , Wang Jianguo , Dong Xiaobiao , Zhang Guanxin , Li Yongdong , Fan Xiaolin
Published: June 2016

MOTIPS-TPE displayed highly selectivity for F− in PBS and was employed as an AIE light-up probe for F− in living HeLa cells.
Tris base assisted synthesis of monodispersed citrate-capped gold nanospheres with tunable size
Authors: Lu Xuefei , Dandapat Anirban , Huang Youju , Zhang Lei , Rong Yun , Dai Liwei , Sasson Yoel , Zhang Jiawei , Chen Tao
Published: June 2016

Tris base assisted synthesis of highly uniform citrate-capped gold nanospheres was achieved by controlling the mode of moderately fast nucleation.
One-pot synthesis of porous Au-nanoparticles@polymer/reduced graphene oxide composite microspheres by γ-ray radiation and their application as a recyclable high-performance catalyst
Authors: Weng Hanqin , Liao Fan , Wang Mozhen , Lin Mingzhang , Ge Xuewu
Published: June 2016

Au-nanoparticles-embedded porous polymer/reduced graphene oxide composite microspheres, with ultra-high catalytic efficiency and recyclability, were fabricated through γ-ray in one pot.
Efficient copolymerization of ethylene with norbornene or its derivatives using half-metallocene zirconium(iv) catalysts
Authors: Li Yulian , Yang Jixing , Wang Bin , Li Yuesheng
Published: June 2016

Four [O,P]ZrCpCl2 were synthesized, and showed good performance on regioselective ethylene/cyclic dienes copolymerizations. Comonomer incorporations up to 76% (ENB) and 40.6% (VNB), respectively, with activities above 103 kg per molZr per h can be achieved.
Hydroperfluoroalkylation of electron-deficient olefins with perfluoroalkyl iodides promoted by zinc/viologen
Authors: Zhou Sheng-Hua , Lin Jin-Hong , Zhao Gang , Xiao Ji-Chang , Cao Wei-Guo
Published: June 2016

The hydroperfluoroalkylation of electron-deficient olefins with perfluoroalkyl iodides promoted by a zinc/viologen system is described. Interestingly, no iodoperfluoroalkylation product was observed without the presence of a radical H-donor.
Structure and electrical properties of lead-free Bi0.5Na0.5TiO3-based ceramics for energy-storage applications
Authors: Xu Qi , Liu Hanxing , Zhang Lin , Xie Juan , Hao Hua , Cao Minghe , Yao Zhonghua , Lanagan Michael T.
Published: June 2016

A new energy-storage ceramic system based on (1 − x)(Bi0.5Na0.5TiO3–BaTiO3)–xNaTaO3 ((1 − x)(BNT–BT)–xNT) is reported in this study.
Mapping gold nanoparticles on and in edible leaves in situ using surface enhanced Raman spectroscopy
Authors: Zhang Zhiyun , Guo Huiyuan , Deng Yingqing , Xing Baoshan , He Lili
Published: June 2016

A surface enhanced Raman spectroscopic (SERS) mapping technique was applied to qualitatively detect and characterize gold nanoparticles on and in spinach leaves in situ.
Rapid detection of Mycobacterium tuberculosis cultures by direct ambient corona discharge ionization mass spectrometry of volatile metabolites
Authors: Chingin Konstantin , Liang Juchao , Liu Yanling , Chen Linfei , Wu Xiaoping , Hu Longhua , Ouyang Yongzhong
Published: June 2016

High-throughput TB screening with high chemical specificity is achieved using direct ambient corona discharge ionization MS analysis of volatile metabolites.
Application of a polytetrafluoroethylene (PTFE) flat membrane for the treatment of pre-treated ASP flooding produced water in a Daqing oilfield
Authors: Zhang Bing , Yu Shuili , Zhu Youbing , Shi Wenxin , Zhang Ruijun , Li Li
Published: June 2016

Pre-treated ASP flooding oilfield water produced in Daqing, China was treated by a PTFE microfiltration membrane and the removal efficiency of the main pollutants in the oilfield-produced water was studied.
Rhodium(ii)-catalyzed direct sulfenylation of diazooxindoles with disulfides
Authors: Khanal Hari Datta , Kim Sung Hong , Lee Yong Rok
Published: June 2016

Rhodium(ii)-catalyzed reactions for direct sulfenylation of diazooxindoles with disulfides via C–S bond formation was developed.
First-principles investigation of the Schottky contact for the two-dimensional MoS2 and graphene heterostructure
Authors: Liu Biao , Wu Li-Juan , Zhao Yu-Qing , Wang Ling-Zhi , Cai Meng-Qiu
Published: June 2016

The electronic properties of an MoS2 and graphene heterostructure are investigated by density functional calculations.
Efficient Ullmann C–N coupling catalyzed by a recoverable oligose-supported copper complex
Authors: Ge Xin , Chen Xinzhi , Qian Chao , Zhou Shaodong
Published: June 2016

The recoverable oligose-supported copper complex as catalyst for an Ullmann-type C–N coupling reaction ofN-nucleophiles and aryl halides under mild conditions.
Protein/peptide secondary structural mimics: design, characterization, and modulation of protein–protein interactions
Authors: Wang Zhipeng A. , Ding Xiaozhe Z. , Tian Chang-Lin , Zheng Ji-Shen
Published: June 2016

This review discusses general aspects of novel artificial peptide secondary structure mimics for modulation of PPIs, their therapeutic applications and future prospects.
Copper-catalyzed hydroboration of propargyl-functionalized alkynes in water
Authors: da Costa Jessie S. , Braun Roger K. , Horn Pedro A. , Lüdtke Diogo S. , Moro Angélica V.
Published: June 2016

The Cu-catalyzed hydroboration of alkynes in operationally simple and environmentally friendly conditions is reported.
Binder-free nitrogen-doped graphene catalyst air-cathodes for microbial fuel cells
Authors: Wang Qiuying , Zhang Xiaoyuan , Lv Ruitao , Chen Xi , Xue Boru , Liang Peng , Huang Xia
Published: June 2016

A binder-free N-doped graphene catalyst layer was synthesizedin situon a nickel mesh for air-cathodes in microbial fuel cells, which achieved 32% higher power density than the commonly used Pt/C air-cathode.
Hydrothermally functionalized biocompatible nitrogen doped graphene nanosheet based biomimetic platforms for nitric oxide detection
Authors: Suhag Deepa , Sharma Arun Kumar , Patni Pranav , Garg Sandeep Kumar , Rajput Satyendra K. , Chakrabarti Sandip , Mukherjee Monalisa
Published: June 2016

Non-covalently functionalized PFNGS, exhibiting exceptional biocompatibility, were employed for sensing nitric oxide with high temporal resolution.
Pyrano[3,2-c]julolidin-2-ones: a novel class of fluorescent probes for ratiometric detection and imaging of Hg2+ in live cancer cells
Authors: Jha Ajay Kumar , Umar Shahida , Arya Rakesh Kumar , Datta Dipak , Goel Atul
Published: June 2016

A novel pyrano[3,2-c]julolidin-2-one based fluorescent molecular rotor PYJO4 has been designed and developed for selective ratiometric detection, quantification and imaging of intracellular Hg2+ in live cells.
Scalable production of CuInS2/ZnS quantum dots in a two-step droplet-based microfluidic platform
Authors: Yashina Alexandra , Lignos Ioannis , Stavrakis Stavros , Choo Jaebum , deMello Andrew J.
Published: June 2016

We report the scalable formation of CuInS2/ZnS nanocrystals using a two-stage microfluidic reactor integrated with a real-time optical detection system, which is able to monitor reaction parameters prior and subsequent to the addition of the shell material.
Comprehensive Assessment of Speech Sound Production in Preschool Children
Authors: Macrae Toby
Published: June 2016

This paper describes a comprehensive speech sound assessment for preschool children suspected of having a speech sound disorder (SSD). Recommended components include standardized single-word testing, additional single-word testing, connected speech sampling, phonological analyses, stimulability testing, and inconsistency testing. While data collection and some cursory analyses take place during the evaluation session, allowing the speech-language pathologist (SLP) to share key information with the parents/caregivers, much of the in-depth analysis takes place later. Since most preschool children's SSDs are phonological in nature, a phonological approach to analysis, target selection, and treatment is required. Two examples of phonological analyses, a place-voice-manner (PVM) analysis and an error pattern analysis, are discussed. Both allow the SLP to identify patterns of difficulty in the child's speech with regards to the place, voicing, and/or manner characteristics of target consonants. Phonological analyses can be performed using the child's single-word and connected speech samples. This information, along with the results from the stimulability and inconsistency testing, will allow the SLP to gain a complete picture of the child's speech sound abilities and difficulties, determine prognosis for change, and identify treatment targets.
The Complex Relationship Between Dehydration and Dysphagia in Neonates
Authors: Madhoun Lauren L. , Jadcherla Sudarshan R.
Published: June 2016

Dehydration in neonates and preterm infants is a severe diagnosis that can have critical results if not quickly identified and treated. Dehydration can cause difficulties in infants who are typically developing and those with developmental challenges. The diagnosis can also cause or exacerbate feeding difficulties in these neonates, resulting in dysphagia. Speech-language pathologists (SLPs) who serve neonates and infants should be aware of the signs, causes, and symptoms of dehydration to properly assess and treat these fragile populations.
Feeding and Swallowing Issues in Infants With Craniofacial Anomalies
Authors: Miller Claire Kane , Madhoun Lauren L.
Published: June 2016

The problems with feeding and swallowing that occur as a result of clefts and craniofacial anomalies range in severity. The extent of clefting, as well as other structural, airway, and neurologic issues, are factors that contribute to potential difficulty with oral feeding mechanics and with the integrity of airway protection during swallowing. Oral motor dysfunction in conjunction with obstruction in the upper airway secondary to anatomic or physiologic anomalies has the potential to cause serious disruption to the necessary coordination of respiration and swallowing. Timely identification of problems is necessary to address threats to nutritional status and/or respiratory health. The pediatric speech-language pathologist has a primary role in the clinical assessment of oral motor/feeding skills, and in the recognition of clinical signs and symptoms of swallowing dysfunction that may warrant referral for instrumental assessment of swallowing function and airway protection. The objective of this article is to summarize the potential feeding difficulties and feeding strategy options for patients with Craniofacial Microsomia, 22q11.2 Deletion Syndrome, Treacher Collins Syndrome, and Pierre Robin Sequence. Awareness of the factors that impact upon the success of feeding and the efficacy of compensatory feeding strategies is key to best practice and successful patient outcomes.
Five Decades of Research Experience in Speech Anatomy and Physiology
Authors: Kuehn David P.
Published: June 2016

This report highlights some of the major developments in the area of speech anatomy and physiology drawing from the author's own research experience during his years at the University of Iowa and the University of Illinois. He has benefited greatly from mentors including Professors James Curtis, Kenneth Moll, and Hughlett Morris at the University of Iowa and Professor Paul Lauterbur at the University of Illinois. Many colleagues have contributed to the author's work, especially Professors Jerald Moon at the University of Iowa, Bradley Sutton at the University of Illinois, Jamie Perry at East Carolina University, and Youkyung Bae at the Ohio State University. The strength of these researchers and their students bodes well for future advances in knowledge in this important area of speech science.
Electromagnetic‐simulation‐driven design of compact ultra‐wideband multiple‐input–multiple‐output antenna
Authors: Koziel Slawomir , Bekasiewicz Adrian
Published: June 2016

In this study, a concept and design optimisation of a miniaturised multiple‐input–multiple‐output (MIMO) antenna is presented. In the authors’ approach, an improved space filling is achieved by optimising an individual antenna layout for minimum size. The MIMO structure is subsequently obtained by arranging two of the previously designed structures. As the design task is heavily constrained both in terms of geometry and electrical performance objectives, surrogate‐assisted optimisation is exploited to obtain the final design in reasonable timeframe. The MIMO structure features a small size of only 565 mm2 and exhibits good isolation in the entire ultra‐wideband band as confirmed by the measurement data.
Inter‐correlations between emitted lights and corresponding currents associated to different energy level spark discharges in mineral oil submitted to high‐voltage direct current stresses
Authors: Lehouidj Bachir , Nacer Azzeddine , Hadji Yassamine , Moulai Hocine , Beroual Abderrahmane
Published: June 2016

The present work is devoted to the analysis of currents and emitted lights associated to electrical spark discharges in mineral oil in a point–plane electrode system under high‐voltage direct current stress. A systematic survey has been led on currents and emitted lights that characterise both positive and negative events through large applied field levels. On the other hand, interrelationships have been established between the currents and their corresponding emitted lights for all types of discharges. A particular attention will be accorded to the inter‐correlation function between the recorded currents and light emissions and between their corresponding fast Fourier transforms. In spite of the similar shapes, major differences have been found between the spectral behaviours between currents corresponding to low‐energy level discharges and those corresponding to high‐energy level ones. On the other hand, photonic signals are found to be more accurate and expressive than the recorded current ones to investigate the physicochemical processes involved in the degradation of the insulating properties of the oil. The total energies of all types of discharges are of comparable magnitudes for both polarities. Their derivatives, i.e. powers, dissipated along the propagation are more expressive of the nature of discharge.
Spondylodiscitis with Extensive Spine Involvement—Case Report
Authors: Faleiro Rodrigo , Sales Marcos , Garcia Luiz , Moraes Vítor , Fontoura Renato , Mendonça Bernardo
Published: June 2016

Spondylodiscitis consists of an inflammatory process of infectious origin that affects primarily the intervertebral disc and spreads to the adjacent vertebral bodies, often evolving into osteomyelitis, with consequent associated neurological damage. The diagnosis is often delayed, with an average of 2 to 6 months between the appearance of the first symptoms and the confirmation of the disease. Therefore, the laboratorial and imaging exams play an important role in the diagnosis of spondylodiscitis, as well as in the orientation for the treatment to be followed (conservative or surgical). We report a case of extensive involvement of the spine and discuss about the epidemiology of the disease, its diagnosis, and therapeutic principles.
Einstellungen zu Entscheidungen am Lebensende und Pflegebedürftigkeit: Ergebnisse einer repräsentativen Befragung der österreichischen Bevölkerung (50+)
Authors: Stolz E. , Rásky É. , Freidl W.
Published: June 2016

Hintergrund und Ziel: Bisherige Befragungen der Bevölkerung hinsichtlich Einstellungen zu Entscheidungen am Lebensende klammern die Pflegebedürftigkeit im Alter und den Einfluss von Sorgen hinsichtlich des Alter(n)s aus. Ziel der vorliegenden Arbeit ist die Präsentation erster Ergebnisse einer aktuellen Befragung zu diesem Thema.

Methode: Eine bundesweite repräsentative Querschnittsbefragung von Österreichern über 50 Jahren (n=968) wurde 2015 durchgeführt.

Ergebnisse: 29,0% der Befragten gaben an als schwer pflegebedürftige ältere Person nicht weiterleben zu wollen. In diesem Zusammenhang befürworteten den von der pflegebedürftigen älteren Person gewünschten Verzicht auf lebensverlängernde Maßnahmen 48,5%, den assistierten Suizid 41,7% und die aktive Sterbehilfe 34,1%. Sorgen hinsichtlich des Alter(n)s sind weit verbreitet (53,7–83,0%). Personen, die hinsichtlich des Alter(n)s sehr besorgt sind, befürworteten assistierten Suizid und aktive Sterbehilfe eher als weniger Besorgte.

Schlussfolgerung: Weitverbreitete Sorgen bezogen auf das Alter(n) und negative Vorstellungen hinsichtlich Pflegebedürftigkeit im Alter sollten im Rahmen von Informationskampagnen thematisiert werden.
One-Year Follow-up of Children and Adolescents with Major Depressive Disorder: Relationship between Clinical Variables and Abcb1 Gene Polymorphisms
Authors: Blázquez A. , Gassó P. , Mas S. , Plana M. , Lafuente A. , Lázaro L.
Published: June 2016

Introduction: Differences in response to fluoxetine (FLX) may be influenced by certain genes that are involved in FLX transportation (ABCB1). We examined remission and recovery from the index episode in a cohort of patients treated with FLX, and also investigated associations between genetic variants in ABCB1 and remission, recovery, and suicide risk.

Methods: This was a naturalistic 1-year follow-up study of 46 adolescents diagnosed with major depressive disorder (MDD). At 12 months they underwent a diagnostic interview with the K-SADS-PL.

Results: It was found that remission was around 69.5% and recovery 56.5%. Remission and recovery were associated with lower scores on the CDI at baseline, with fewer readmissions and suicide attempts, and with lower scores on the CGI and higher scores on the GAF scale. No relationship was found between ABCB1 and remission or recovery. However, a significant association was observed between the G2677T ABCB1 polymorphism and suicide attempts.

Conclusion: Other factors such as stressful events, family support, and other genetic factors are likely to be involved in MDD outcome.
Die Zukunft der medizinisch–rehabilitativen Versorgung im Kontext der Multimorbidität – Teil I: Begriffsbestimmung, Versorgungsfragen und Herausforderungen
Authors: Seger W. , Cibis W. , Deventer A. , Grotkamp S. , Lübke N. , Schönle P.-W. , Schmidt-Ohlemann M. , Schubert M.
Published: June 2016

Hintergrund: Multimorbide Personen mit 2 und mehr chronischen Krankheiten mit sozialmedizinischer Relevanz, rücken immer mehr in den Vordergrund der rehabilitativen Versorgung.

Methodik: Nach Klärung der Begriffsbestimmung von Multimorbidität im rehabilitativen Kontext und orientierender Literaturauswertung zu deren Prävalenz und Folgen wurden ausgehend von einem kasuistischen Beispiel besondere Anforderungen und allgemeine Herausforderungen für die Leistungsgestaltung sowie für die rehabilitative Versorgung herausgearbeitet und im Ärztlichen Sachverständigenrat der Bundesarbeitsgemeinschaft für Rehabilitation (BAR) konsentiert.

Ergebnis: Der Handlungsbedarf bei multimorbiden Versicherten reicht von der funktionsbezogenen, individuellen Bedarfsermittlung über die Zuweisungspraxis, Rehabilitationsdurchführung und -nachsorge bis zur Reintegration der Rehabilitanden in den Sozialraum.
Psychosoziale Belastungen, Stressempfinden und Stressbewältigung von Studierenden der Sozialen Arbeit: Ergebnisse einer quantitativen Studie
Authors: Kriener C. , Schwertfeger A. , Deimel D. , Köhler T.
Published: June 2016

Im Rahmen der vorliegenden quantitativen Untersuchung wurden die Daten von 746 Studierenden der Sozialen Arbeit hinsichtlich ihres aktuellen Stresserlebens, erlebter psychosozialer Belastungsfaktoren sowie deren Nutzung spezifischer Bewältigungsverfahren erhoben. Zum Einsatz kam die Perceived Stress Scale (PSS) sowie das Trierer Inventar zum Chronischen Stress (TICS). Die Ergebnisse zeigen, dass ein Drittel der Studierenden unter viel bis extrem viel Stress leidet. Ein Viertel fühlt sich deutlich überfordert und sozial überlastet. Psychosozialen Belastungen durch prägende Ereignisse in der Biografie (z. B. Tod oder psychische Erkrankung von nahen Angehörigen) sind weit mehr als die Hälfte der Studierenden ausgesetzt. Trotz deutlicher Belastungen hat nur ein Viertel schon einmal professionelle Unterstützung in Anspruch genommen. Studierende, die vorwiegend funktionale Bewältigungsstrategien nutzen, weisen u. a. ein geringeres Stressempfinden und geringere Überforderung als Studierende auf, die vorwiegend dysfunktionale Bewältigungsstrategien nutzen. Dieses theoretisch häufig beschriebene und empirisch fundierte Wissen sollte gewinnbringend im Hochschulkontext genutzt werden: Die vermehrte Implementierung von Seminaren zur Stressbewältigung im Studium liegt nahe – das Erlernen funktionaler Bewältigungsstrategien kann zu einer deutlichen Reduktion von Stress und Belastungen unter Studierenden beitragen. Zudem sollten niedrigschwellige psychosoziale Unterstützungsangebote implementiert und ausgebaut werden.
An enhanced Cramér-Rao bound weighted method for attitude accuracy improvement of a star tracker
Authors: Zhang Jun , Wang Jian
Published: June 2016

This study presents a non-average weighted method for the QUEST (QUaternion ESTimator) algorithm, using the inverse value of root sum square of Cramér-Rao bound and focal length drift errors of the tracking star as weight, to enhance the pointing accuracy of a star tracker. In this technique, the stars that are brighter, or at low angular rate, or located towards the center of star field will be given a higher weight in the attitude determination process, and thus, the accuracy is readily improved. Simulations and ground test results demonstrate that, compared to the average weighted method, it can reduce the attitude uncertainty by 10%-20%, which is confirmed particularly for the sky zones with non-uniform distribution of stars. Moreover, by using the iteratively weighted center of gravity algorithm as the newly centroiding method for the QUEST algorithm, the current attitude uncertainty can be further reduced to 44% with a negligible additional computing load.
Design of specially adapted reactive coordinates to economically compute potential and kinetic energy operators including geometry relaxation
Authors: Thallmair Sebastian , Roos Matthias K. , de Vivie-Riedle Regina
Published: June 2016

Quantum dynamics simulations require prior knowledge of the potential energy surface as well as the kinetic energy operator. Typically, they are evaluated in a low-dimensional subspace of the full configuration space of the molecule as its dimensionality increases proportional to the number of atoms. This entails the challenge to find the most suitable subspace. We present an approach to design specially adapted reactive coordinates spanning this subspace. In addition to the essential geometric changes, these coordinates take into account the relaxation of the non-reactive coordinates without the necessity of performing geometry optimizations at each grid point. The method is demonstrated for an ultrafast photoinduced bond cleavage in a commonly used organic precursor for the generation of electrophiles. The potential energy surfaces for the reaction as well as the Wilson G-matrix as part of the kinetic energy operator are shown for a complex chemical reaction, both including the relaxation of the non-reactive coordinates on equal footing. A microscopic interpretation of the shape of the G-matrix elements allows to analyze the impact of the non-reactive coordinates on the kinetic energy operator. Additionally, we compare quantum dynamics simulations with and without the relaxation of the non-reactive coordinates included in the kinetic energy operator to demonstrate its influence.
An experimental and theoretical study of the Ã2A″Π–X̃2A′ band system of the jet-cooled HBBr/DBBr free radical
Authors: Gharaibeh Mohammed , Clouthier Dennis J. , Tarroni Riccardo
Published: June 2016

The electronic spectra of the HBBr and DBBr free radicals have been studied in depth. These species were prepared in a pulsed electric discharge jet using a precursor mixture of BBr3 vapor and H2 or D2 in high pressure argon. Transitions to the electronic excited state of the jet-cooled radicals were probed with laser-induced fluorescence and the ground state energy levels were measured from the single vibronic level emission spectra. HBBr has an extensive band system in the red which involves a linear-bent transition between the two Renner-Teller components of what would be a 2Π state at linearity. We have used high level ab initio theory to calculate potential energy surfaces for the bent 2A′ ground state and the linear Ã2A″Π excited state and we have determined the ro-vibronic energy levels variationally, including spin orbit effects. The correspondence between the computed and experimentally observed transition frequencies, upper state level symmetries, and H and B isotope shifts was used to make reliable assignments. We have shown that the ground state barriers to linearity, which range from 10 000 cm−1 in HBF to 2700 cm−1 in BH2, are inversely related to the energy of the first excited 2Σ (2A′) electronic state. This suggests that a vibronic coupling mechanism is responsible for the nonlinear equilibrium geometries of the ground states of the HBX free radicals.
The influence of surfactants on thermocapillary flow instabilities in low Prandtl melting pools
Authors: Kidess Anton , Kenjereš Saša , Kleijn Chris R.
Published: June 2016

Flows in low Prandtl number liquid pools are relevant for various technical applications and have so far only been investigated for the case of pure fluids, i.e., with a constant, negative surface tension temperature coefficient ∂γ/∂T. Real-world fluids containing surfactants have a temperature dependent ∂γ/∂T > 0, which may change sign to ∂γ/∂T < 0 at a critical temperature Tc. Where thermocapillary forces are the main driving force, this can have a tremendous effect on the resulting flow patterns and the associated heat transfer. Here we investigate the stability of such flows for five Marangoni numbers in the range of 2.1 × 106 ≤ Ma ≤ 3.4 × 107 using dynamic large eddy simulations, which we validate against a high resolution direct numerical simulation. We find that the five cases span all flow regimes, i.e., stable laminar flow at Ma ≤ 2.1 × 106, transitional flow with rotational instabilities at Ma = 2.8 × 106 and Ma = 4.6 × 106, and turbulent flow at Ma = 1.8 × 107 and Ma = 3.4 × 107.
Tripartite entanglement dynamics of vibrations in triatomic molecules
Authors: Zhai Liangjun , Zheng Yujun
Published: June 2016

In the present study, the dynamical behaviors of tripartite entanglement of vibrations in triatomic molecules are studied based on the Lie algebraic models of molecules. The dynamical behaviors of tripartite entanglement of the local mode molecule H2O and normal mode molecule NO2 are comparatively studied for different initial states by employing the general concurrence. Our results show that the dynamics of tripartite entanglement are relied on the dynamics of intramolecular energy distribution. The local mode molecule is more suitable to construct the tripartite entangled states. Also, the greater degree of tripartite entanglement can be obtained if the stretching vibration is first excited. These results shed new light on the understanding of quantum multipartite entanglement of vibrations in the polyatomic molecules.
Understanding the thickness-dependent effective lifetime of crystalline silicon passivated with a thin layer of intrinsic hydrogenated amorphous silicon using a nanometer-accurate wet-etching method
Authors: Deligiannis Dimitrios , Marioleas Vasileios , Vasudevan Ravi , Visser Cassan C. G. , van Swaaij René A. C. M. M. , Zeman Miro
Published: June 2016

This work studies the dependency of the effective lifetime on the a-Si:H layer thickness of c-Si substrates passivated with intrinsic a-Si:H. This is experimentally investigated by using a soft wet-etching method that enables accurate control of the a-Si:H layer thickness. In this way, variations in the effective lifetime down to thicknesses of a few nanometers are studied, while excluding effects originating from the deposition conditions of a-Si:H when samples of different thicknesses are fabricated. For thin passivation layers, results show a strong thickness dependency of the effective lifetime, which is mainly influenced by the recombination at the external a-Si:H surfaces. For thicker passivation layers, the effective lifetime is predominantly determined by the bulk a-Si:H and/or c-Si defect density. During the etching of the a-Si:H passivation layers, a gradient in the Cody gap for our samples is observed. This gradient is accompanied by a stronger decrease in the effective lifetime and is attributed to a decrease in the a-Si:H band gap and valence band offset. The observed changes in lifetime with a-Si:H layer thickness are supported with AFORS-HET simulations. When a gradient in the a-Si:H passivation layer band gap is used, simulations can reproduce the experimental results.
A two-stage culture process using Chlorella vulgaris for urban wastewater nutrient removal and enhanced algal lipid accumulation under photoautotrophic and mixotrophic conditions
Authors: Canedo-López Yunuen , Ruiz-Marín Alejandro , Zavala-Loría José del Carmen
Published: June 2016

Microalgae such as Chlorella vulgaris contain sufficient fatty acids to suggest their use as feedstocks for biodiesel production. Their capacity to remove nitrogen, phosphate, and other nutrients from a culture medium makes them a potentially useful element in urban wastewater treatment systems. A two-stage process was used to grow Chlorella vulgaris under mixotrophic and autotrophic conditions in artificial wastewater and urban wastewater media. Growth rate, nutrient removal, and lipids accumulation were quantified. Initially, the media were nitrogen-enriched (90 mg−1; Stage I), and then nitrogen limited (30, 20, and 10 mg l−1; Stage II). Growth was not inhibited under either of the culture conditions, and nitrogen uptake rates were above 90%. Total organic carbon removal was higher (56.2%–86%) under mixotrophic conditions than under photoautotrophic conditions (15.2%–69%). Lipids productivity was 2.7 times higher under mixotrophic conditions and nitrogen limitation than under photoautotrophic conditions and nitrogen limitation. Palmitic acid and linoleic acid accounted for 25.0% of total fatty acids contents, which is an adequate profile for biodiesel production. Culture of C. vulgaris in urban wastewater can improve the efficiency of nitrogen and total organic carbon removal, and water reuse, while simultaneously producing algal biomass with sufficient lipids content and an acceptable fatty acids profile for use as a biodiesel feedstock.