bluuebunny/crossref_metadata_2025 huggingface dataset:
Benchmarking Database Performance for Genomic Data
Authors: Khushi Matloob
Published: January 2015

Genomic regions represent features such as gene annotations, transcription factor binding sites and epigenetic modifications. Performing various genomic operations such as identifying overlapping/non‐overlapping regions or nearest gene annotations are common research needs. The data can be saved in a database system for easy management, however, there is no comprehensive database built‐in algorithm at present to identify overlapping regions. Therefore I have developed a novel region‐mapping (RegMap) SQL‐based algorithm to perform genomic operations and have benchmarked the performance of different databases. Benchmarking identified that PostgreSQL extracts overlapping regions much faster than MySQL. Insertion and data uploads in PostgreSQL were also better, although general searching capability of both databases was almost equivalent. In addition, using the algorithm pair‐wise, overlaps of >1000 datasets of transcription factor binding sites and histone marks, collected from previous publications, were reported and it was found that HNF4G significantly co‐locates with cohesin subunit STAG1 (SA1). J. Cell. Biochem. 116: 877–883, 2015. © 2015 Wiley Periodicals, Inc.
Effects of steroids on thrombogenic markers in patients undergoing unilateral total knee arthroplasty: A prospective, double‐blind, randomized controlled trial
Authors: McLawhorn Alexander S. , Beathe Jonathan , YaDeau Jacques , Buschiazzo Valeria , Purdue P. Edward , Ma Yan , Sculco Thomas P. , Jules‐Elysée Kethy
Published: January 2015

Venous thromboembolism (VTE) remains an important complication after total knee arthroplasty (TKA). Systemic thrombin generation starts perioperatively. Inflammation, characterized by a rise in interleukin‐6 (IL6), initiates the coagulation cascade, but low‐dose steroids can reduce post‐TKA IL6 levels. This double‐blinded, randomized, placebo‐controlled study enrolled 30 patients undergoing unilateral TKA to assess the effect of perioperative steroids on serum prothrombin fragment (PF1.2), a marker of thrombin generation, and plasmin‐alpha‐2‐antiplasmin complex (PAP), a marker of fibrinolysis. Study patients received 100 mg of intravenous hydrocortisone 2 h prior to surgery, and controls received normal saline. Blood samples, drawn pre‐incision and at 4 h post tourniquet release, were assayed for PF1.2 and PAP. The study group had significantly lower mean PF1.2 at 4 h compared to controls (616 ± 358 pMol/L vs. 936 ± 332 pMol/L, p = 0.037). The mean rise in PF1.2 in the control group was significantly greater compared to the study group (672 ± 173 pMol/L vs. 350 ± 211 pMol/L, p < 0.001). Mean PAP was higher in the study group at 4 h (1639 ± 823 µg/L vs. 1087 ± 536 µg/L), but did not reach statistical significance (p = 0.07). These results may have clinical implications in terms of postoperative VTE risk and management. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 33:???–???, 2015.
Dietary Variability During Bronze Age in Central Italy: First Results
Authors: Varalli A. , Moggi‐Cecchi J. , Moroni A. , Goude G.
Published: January 2015

This research aims at delineating the dietary practices in Central Italy during the Bronze Age. The study of food choices is a mean for investigating palaeoenvironmental agricultural and economic activities and social relationships, which have been little explored until now in Italy from this specific perspective. Recent researches have showed that the Middle Bronze Age is a crucial period of dietary changes in Italy. Following these first observations, we studied three Bronze Age sites in Tuscany and Latium: Grotta dello Scoglietto, Grotta Misa and Felcetone. Analyses of stable carbon, nitrogen and sulphur isotopes on 38 human and 22 animal collagen samples were performed. The results show three different dietary patterns. Data from Grotta dello Scoglietto (Early Bronze Age) indicate a high‐protein intake, with a probable consumption of fish. Additionally, sulphur results let us infer the presence of some non‐local people. Individuals from Felcetone (Initial phase of the Middle Bronze Age) show a terrestrial diet dominated by plant proteins, which suggests a low δ15N food intake, namely legumes, as well as C4 plant, such as millet. Finally, values from Grotta Misa (Middle Bronze Age) highlight a mixed terrestrial diet and the consumption of millet. Given the variety of the obtained results, we are able to conclude that the transition from the Early to the Middle Bronze Age represents a moment of change, which is reflected by the presence of different dietary patterns. Copyright © 2015 John Wiley & Sons, Ltd.
Effects of (+)‐pentazocine on the antinociceptive effects of (–)‐pentazocine in mice
Authors: Mori Tomohisa , Ohya Junpei , Itoh Toshimasa , Ise Yuya , Shibasaki Masahiro , Suzuki Tsutomu
Published: January 2015

Previous studies have shown that sigma‐1 receptor chaperone (Sig‐1R) ligands can regulate pain‐related behaviors, and Sig‐1R itself can regulate μ‐opioid receptor functions as well as signal transduction. Even though (±)‐pentazocine has been used clinically for the treatment of pain through opioid receptors, (+)‐pentazocine is known to be a selective Sig‐1R agonist. To the best of our knowledge, there is no information available regarding the involvement of Sig‐1R agonistic action in the antinociceptive effects of (±)‐pentazocine. Therefore, the present study was designed to investigate the effects of (+)‐pentazocine on the antinociceptive effects of (–)‐pentazocine in mice. Both and (–)‐pentazocine induced biphasic antinociceptive effects as measured by the warm‐plate test. The early phase, but not the delayed phase, of the antinociceptive effects induced by (–)‐pentazocine, which are mediated by the activation of μ‐opioid receptors, were suppressed by pretreatment with (+)‐pentazocine. These results suggest that the innate antinociceptive action of (±)‐pentazocine could be marginally reduced by the effects of (+)‐pentazocine, but (+)‐pentazocine can suppress the antinociceptive effects of (–)‐pentazocine at certain time points. Synapse 69:166–171, 2015.  © 2015 Wiley Periodicals, Inc.
All in the Family: Barriers and Motivators to the Use of Cancer Family History Questionnaires and the Impact on Attendance Rates
Authors: Armel Susan Randall , McCuaig Jeanna , Gojska Nicole , Demsky Rochelle , Maganti Manjula , Murphy Joan , Rosen Barry
Published: January 2015

Data has demonstrated that family history questionnaires (FHQs) are an invaluable tool for assessing familial cancer risk and triaging patients for genetic counseling services. Despite their benefits, return rates of mailed FHQs from newly referred patients remain low, suggesting potential barriers to their use. To investigate this, a total of 461 participants, 239 who completed a FHQ (responders) and 222 who did not (non‐responders), were surveyed at a subsequent appointment regarding potential barriers and motivators to using the FHQ. With respective rates of 51 and 56 %, there was no significant difference in the proportion of responders and non‐responders who reported difficulty in completing the FHQ; however, for both groups factors related to family dynamics (large family size, lack of contact with relatives, and lack of knowledge of family history) were reported as major variables confounding completion of the FHQ. Responders were also significantly more likely to have a personal diagnosis of cancer (p = 0.02) and to report that their physician had discussed the reason for the appointment with them (p = 0.01). Overall, 19 % of non‐responders returned their FHQ after being mailed an appointment letter and 67 % attended their scheduled genetic counseling appointment. These findings demonstrate that difficulty completing the FHQ is not inherent to its design but due to difficulty accessing one's family history, and that mailed appointment letters are a highly successful way to increase attendance rates in the non‐responder population. Furthermore, these results demonstrate the important role that referring physicians play in the utilization of genetic counseling services.
Temporal variability of food determines the outcome of pesticide exposure in Daphnia
Authors: Reyes Claudio A. , Ramos‐Jiliberto Rodrigo , González‐Barrientos Javier
Published: January 2015

In nature the effect that pollutants exert on exposed organisms could depend on the state and dynamics of natural environmental factors as well as on the internal state of the exposed organisms. In this study we evaluated how level and variability of food, as well as the age of exposure can modify the effects of the pesticide deltamethrin on the freshwater crustacean Daphnia magna. The effects of the pesticide were measured on life history and nutritional traits (lipid storage) of the test organisms, which were exposed at different juvenile ages under constant (high and low) food as well as food shortage treatments. Our results show that deltamethrin exerts significant effects on all evaluated traits of Daphnia, and several responses are shaped by deltamethrin interacting with food and age of exposure. Two novel results are remarkable. First, at constant food treatments the effects of the pesticide were stronger on younger individuals, whereas in food shortage treatments the effects were stronger on older individuals. Second, we observed that deltamethrin exerted stronger effects on certain traits (survival, body growth and median consumption time of lipids) in Daphnia exposed to food shortage, as compared to constant low food treatments. Our results highlight the importance of the dynamics of resources in freshwater systems for shaping the vulnerability of herbivores to pollutants released to the ecosystem and improve our understanding of how the organismal responses to environmental stress are determined by the ecological condition of the organisms at the instant of being exposed to perturbations.
International note: Association between perceived resilience and health risk behaviours in homeless youth
Authors: Oppong Asante Kwaku , Meyer‐Weitz Anna
Published: January 2015

Homeless youth are regarded as an extremely high risk group, susceptible to suicidal ideation substance abuse, and high rates of mental illness. While there exists a substantial body of knowledge regarding resilience of homeless youth, few studies has examined the relationship between perceived resilience and health risk behaviours. The present study describes the findings from a quantitative examination of street‐related demographics, resilience, suicidal ideation, substance abuse, sexual risk behaviours and violent related behaviours among 227 homeless youth. The findings revealed that perceived resilience was negatively related to suicidal ideation, substance abuse and violence. Suicidal ideation was positively related to both substance abuse and violence, whilst violence and substance abuse were positively correlated. Multiple regressions showed that perceived resilience served as a protective factor for suicidal ideation and having multiple sexual lifetime partners, suggesting that youth with lower level of perceived resilience were more likely to engage in various health risks behaviours.
Methyl jasmonate elicits the production of methyl (E)‐2‐hexenoate from (Z)‐2‐hexenol via (Z)‐2‐hexenal in Achyranthes bidentata plant
Authors: Tamogami Shigeru , Noge Koji , Agrawal Ganesh K. , Rakwal Randeep
Published: January 2015

The medicinal herbal plant Achyranthes bidentata (A. bidentata) produces the sweet‐odor ester – methyl (E)‐2‐hexenoate (1) as the major volatile in response to methyl jasmonate (MeJA). Here, we investigated the biosynthetic pathway of methyl (E)‐2‐hexenoate (1). The common plant precursor (Z)‐3‐hexenal was only slightly metabolized into methyl (E)‐2‐hexenoate (1), and its application scarcely enhanced the production of this ester. By contrast, a structurally related alcohol, (Z)‐2‐hexenol, as well as a deuteride derivative thereof could be efficiently metabolized into methyl (E)‐2‐hexenoate (1). Thus, we hypothesize that A. bidentata possess a specific pathway for the production of methyl (E)‐2‐hexenoate (1) from (Z)‐2‐hexenol in response to MeJA.
IjtihādagainstMadhhab: Legal Hybridity and the Meanings of Modernity in Early Modern Daghestan
Authors: Gould Rebecca
Published: January 2015

This article explores the interface of multiple legal systems in early modern Daghestan. By comparing colonial engagements with legal plurality with indigenous genres of Daghestani legal discourse, I aim to shed light on the plurality of legal systems that preceded as well as informed legal discourse under colonialism. The Daghestani turn toijtihād(independent legal reasoning) in the early modern period parallels the turn away fromcādāt(indigenous law) that shaped modern Islamic as well as colonial legal regimes, albeit with radically distinctive genealogies. In tracing these internal debates, I offer a preliminary genealogy of Daghestaniijtihādthat is grounded in the robust debates concerning the sources of Islamic authority that originated in Yemen and were transmitted to Daghestan by traveling scholars. This essay is a contribution to the study of legal norms on colonial borderlands, as well as to the study of Islamic modernity before colonialism.
Prosodic structures and templates in bilingual phonological development
Authors: VIHMAN MARILYN
Published: January 2015

Bilingual children have long been held to have ‘separate linguistic systems’ from the start (e.g., Meisel, 2001). This paper challenges that assumption with data from five bilingual children's first 100 words. Whereas the prosodic structures represented by a child's words may or may not be differentiated by language, emergent phonological templates are not, the same patterns being deployed as more complex adult word forms are targeted in each language. Reliance on common (idiosyncratic) phonological templates for the two languages is ascribed to children's experience with their own voice (in production) as well as with others’ speech. Both experimental studies and spontaneous cross-linguistic speech errors in adults and older children are cited to support the view that, for a bilingual, unconscious processing draws on both languages throughout the lifespan, which suggests that the emphasis on ‘separate systems’ (from the start or thereafter) may be misconceived.
Plasma biomarkers of pulmonary hypertension identified by Fourier transform infrared spectroscopy and principal component analysis
Authors: Staniszewska-Slezak Emilia , Fedorowicz Andrzej , Kramkowski Karol , Leszczynska Agnieszka , Chlopicki Stefan , Baranska Malgorzata , Malek Kamilla
Published: January 2015

In this work FTIR studies on blood plasma in the rat models of hypertension are reported.
Sweat pore mapping using a fluorescein–polymer composite film for fingerprint analysis
Authors: Pyo Minkyeong , Lee Joosub , Baek Woohyun , Lee Chan Woo , Park Bum Jun , Kim Jong-Man
Published: January 2015

A simple but efficient sweat pore mapping method based on a fluorescein–PVP composite film was developed for fingerprint analysis.
Reversible Janus particle assembly via responsive host–guest interactions
Authors: Zhou Ying , Wang Dongsheng , Huang Shilin , Auernhammer Günter , He Yujian , Butt Hans-Jürgen , Wu Si
Published: January 2015

Self-assembly of Janus particles is reversibly controlled by responsive host–guest interactions of cyclodextrin and azobenzene.
Photochromism in sound-induced alignment of a diarylethene supramolecular nanofibre
Authors: Hotta Yasuhisa , Fukushima Satomi , Motoyanagi Jin , Tsuda Akihiko
Published: January 2015

A photochromic supramolecular nanofibre, composed of a diarylethene derivative, exhibits hydrodynamic alignment upon exposure to the audible sound.
A rare I2O3 hybrid organic–inorganic material with high connectivity and quadruple-stranded helices
Authors: Yang Gao-Shan , Liu Chong-Bo , Wen Hui-Liang , Tan Sheng-Shui , John Zhang Z.
Published: January 2015

A novel I2O3 hybrid material with one Cd–OH helix, two quadruple-stranded Cd–ligand helices and a (5,14-c) topological net was assembled.
Mesoporous V2O5/Ketjin black nanocomposites for all-solid-state symmetric supercapacitors
Authors: Peng Tao , Wang Jun , Liu Qi , Liu Jingyuan , Wang Peng
Published: January 2015

The mesoporous V2O5/Ketjin black nanocomposites electrode (VK2) shows high areal capacitance and good cycling stability in a LiCl/PVA gel electrolyte. Furthermore, the VK-based all-solid-state symmetric supercapacitor can provide the maximum energy density of 56.83 W h kg−1, indicating their potential for practical applications.
Oxidation of a model alkane aerosol by OH radical: the emergent nature of reactive uptake
Authors: Houle F. A. , Hinsberg W. D. , Wilson K. R.
Published: January 2015

Reactive uptake of OH by organic aerosol particles is situational and related to internal diffusion distances between OH sticking events.
The influence of bridge-reduced state levels on the electron transfer within the 2,7-dinitroanthracene radical anion
Authors: Telo J. P. , Moneo Á.
Published: January 2015

The 2,7-dinitroanthracene radical anion has an (apparent) electronic coupling much higher than either itsN,Ndistance or its non-Kekule substitution would suggest. The results can only be explained if a low-lying bridge redox state is influencing the electron transfer.
A sodium ion intercalation material: a comparative study of amorphous and crystalline FePO4
Authors: Wang Wei , Wang Shubo , Jiao Handong , Zhan Pan , Jiao Shuqiang
Published: January 2015

Due to their low cost, high abundance and eco-friendly features, Na-ion batteries are becoming alternative choices for rechargeable batteries, especially in large scale applications.
Sodium and rhodium complexes of a spirocyclic Te5 dianion supported by P2N2 rings
Authors: Nordheider Andreas , Athukorala Arachchige Kasun S. , Slawin Alexandra M. Z. , Woollins J. Derek , Chivers Tristram
Published: January 2015

The versatile coordinating ability of a novel spirocyclic, P2N2-supported Te5 dianion is exemplified by N,N′-bonding to Na+ ions and Te,Te′,Te′′ linkages to a Cp*Rh(iii) group.
Mechanisms and rates of proton transfer to coordinated carboxydithioates: studies on [Ni(S2CR){PhP(CH2CH2PPh2)2}]+(R = Me, Et, Bunor Ph)
Authors: Alwaaly Ahmed , Clegg William , Henderson Richard A. , Probert Michael R. , Waddell Paul G.
Published: January 2015

Kinetics of protonation of [Ni(S2CR)(PhP{CH2CH2PPh2}2)]+(R = Me, Et, Bunor Ph) with HCl reveals hydrogen-bonded precursor and subsequent chelate opening.
O–H bond oxidation by a monomeric MnIII–OMe complex
Authors: Wijeratne Gayan B. , Day Victor W. , Jackson Timothy A.
Published: January 2015

The structurally characterized [MnIII(OMe)(dpaq)]+ complex is the first example of a stable MnIII–OMe complex that can activate substrate O–H bonds with bond dissociation free energies up to 78.5 kcal mol−1 in acetonitrile.
One-pot highly diastereoselective annulation to N-unprotected tetrasubstituted 2-pyrrolines
Authors: Meninno Sara , Capobianco Amedeo , Peluso Andrea , Lattanzi Alessandra
Published: January 2015

An effective one-pot sequential Michael addition/deprotection/cyclization/tautomerization approach to N-unprotected fully substituted trans-2-pyrrolines has been developed.
Microfluidic cell sorting: a review of the advances in the separation of cells from debulking to rare cell isolation
Authors: Wyatt Shields IV C. , Reyes Catherine D. , López Gabriel P.
Published: January 2015

This review surveys the leading approaches for sorting cells in microfluidic devices and organizes those technologies by the many physical mechanisms exploited for sorting.
Bringing one-dimensional photonic crystals to a new light: an electrophotonic platform for chemical mass transport visualisation and cell monitoring
Authors: Pavlichenko Ida , Broda Ellen , Fukuda Yoshiyuki , Szendrei Katalin , Hatz Anna Katharina , Scarpa Giuseppe , Lugli Paolo , Bräuchle Christoph , Lotsch Bettina V.
Published: January 2015

A chemo- and bio-photonic sensing scheme is presented, which integrates stimuli-responsive 1D photonic crystals with an electrophotonic visualisation platform.
Triazole-appended BODIPY–piperazine conjugates and their efficacy toward mercury sensing
Authors: Singh Roop Shikha , Gupta Rakesh Kumar , Paitandi Rajendra Prasad , Misra Arvind , Pandey Daya Shankar
Published: January 2015

A selective chromo- and fluorogenic sensor for Hg2+ based on triazole-appended BODIPY–piperazine conjugates has been presented.
Applications of graphene and related nanomaterials in analytical chemistry
Authors: Ge Shenguang , Lan Feifei , Yu Feng , Yu Jinghua
Published: January 2015

Graphene and its related materials remain a very bright and exciting prospect in analytical chemistry.
Structural investigation on toluene-3,4-dithiolatoantimony(iii) alkyldithiocarbonate complexes: thermal, powder XRD and biological studies
Authors: Chauhan Harendra Pratap Singh , Joshi Sapana , Bakshi Abhilasha , Carpenter Jaswant
Published: January 2015

On thermal decomposition of the mixed sulfur donor antimony(iii) complexes, we obtained antimony sulfide at 600 °C, which was confirmed by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX).
Synthesis and characterisation of aluminium(iii) imine bis(phenolate) complexes with application for the polymerisation of rac-LA
Authors: Forder Thomas R. , Jones Matthew D.
Published: January 2015

A series of Al(iii) complexes based on novel amine-bis(phenolate)s have been prepared for the production of polyesters.
Valence holes observed in nanodiamonds dispersed in water
Authors: Petit Tristan , Pflüger Mika , Tolksdorf Daniel , Xiao Jie , Aziz Emad F.
Published: January 2015

The electronic structure of nanodiamonds, probed by soft X-ray absorption and emission spectroscopies, is found to change upon aqueous dispersion.
Protein denaturation at a single-molecule level: the effect of nonpolar environments and its implications on the unfolding mechanism by proteases
Authors: Cheng Bo , Wu Shaogui , Liu Shixin , Rodriguez-Aliaga Piere , Yu Jin , Cui Shuxun
Published: January 2015

When pulled into a nonpolar solvent by AFM, the single molecule of a polyprotein will be denatured into an unstructured polypeptide spontaneously.
Primary amine recognition in water by a calix[6]aza-cryptand incorporated in dodecylphosphocholine micelles
Authors: Brunetti Emilio , Inthasot Alex , Keymeulen Flore , Reinaud Olivia , Jabin Ivan , Bartik Kristin
Published: January 2015

A zinc calix[6]azacryptand complex was incorporated into dodecylphosphocholine micelles. This complex can strongly and selectively bind linear primary amines in an aqueous medium.
Co-catalysis between DABCO and a Brønsted acid in the catalytic [4 + 2] annulation of isatin with but-3-yn-2-one and mechanistic investigations
Authors: Wang Qiang , Xu Qin , Shi Min
Published: January 2015

Catalytic amounts of the base catalyst DABCO in cooperation with a proton source afford the [4 + 2] cycloadducts of isatins with but-3-yn-2-one in moderate to good yields. Moreover, related plausible mechanisms have been proposed in detail based on control and deuterium labeling experiments.
A new method for the preparation of 1,3,5-triarylbenzenes catalyzed by nanoclinoptilolite/HDTMA
Authors: Tayebee R. , Jarrahi M. , Maleki B. , Kargar Razi M. , Mokhtari Z. B. , Baghbanian S. M.
Published: January 2015

An efficient method for the preparation of 1,3,5-triarylbenzenes. Natural surface-modified NCP as a new and reusable catalyst. Using solvent-free conditions.
Effect of incorporation of POSS compounds and phosphorous hardeners on thermal and fire resistance of nanofilled aeronautic resins
Authors: Raimondo M. , Russo S. , Guadagno L. , Longo P. , Chirico S. , Mariconda A. , Bonnaud L. , Murariu O. , Dubois Ph.
Published: January 2015

The aim of this work is the identification of the best strategy for improving thermal, fire resistance and electrical conductivity of an epoxy resin for aeronautic applications.
One-pot synthesis of polymer monolithic column by combination of free radical polymerization and azide–alkyne cycloaddition “click” reaction and its application in capillary liquid chromatography
Authors: Yu Ruifang , Hu Wenli , Lin Guo , Xiao Qi , Zheng Jiangnan , Lin Zian
Published: January 2015

A facile “one-pot” method was developed for the preparation of polymer monoliths by combination of free radical polymerization and CuAAC click reaction.
Fe2O3–AgBr nonwoven cloth with hierarchical nanostructures as efficient and easily recyclable macroscale photocatalysts
Authors: Zhao Huihui , Zhang Lisha , Gu Xiaodong , Li Shijie , Li Bo , Wang Huanli , Yang Jianmao , Liu Jianshe
Published: January 2015

The Fe2O3–AgBr nonwoven cloth with hierarchical nanostructures synthesized by an electrospinning–calcination method exhibits efficient photocatalytic activity and easy recycling features.
Synthesis of monodispersed YbF3:Er3+ nanoplates with rhombus shapes
Authors: He Shengtai , Hou Xiaoqin , Zhou Jun , Li Yanan , Li Qin
Published: January 2015

Novel monodisperse YbF3:Er3+ nanoplates with regular rhombus shape are synthesized via a thermolysis process. The morphology and luminescence properties have been investigated using transmission electron microscopy and emission spectroscopy.
Synthesis of dimethyl carbonate (DMC) based biodegradable nitrogen mustard ionic carbonate (NMIC) nanoparticles
Authors: Thyriyalakshmi P. , Radha K. V.
Published: January 2015

Nitrogen mustard ionic carbonate with stable carbonate moiety was synthesized and cross-linked with the biopolymer chitosan. Subsequently, nanoparticles of cross linked chitosan were prepared for wound healing application.
A systematic study on the synthesis of α-Fe2O3 multi-shelled hollow spheres
Authors: Padashbarmchi Zahra , Hamidian Amir Hossein , Zhang Hongwei , Zhou Liang , Khorasani Nematolah , Kazemzad Mahmood , Yu Chengzhong
Published: January 2015

Well-defined α-Fe2O3 multi-shelled hollow spheres have been fabricated by a facile spray drying method. The resulting material exhibits high reversible capacity and good cycling performance in lithium storage.
Transparent and conductive polysiloxanes/PEDOT:PSS nanocomposite thin films with a “water-impermeable” property to significantly enhance stability of organic–inorganic hybrid solar cells
Authors: Wang Heming , Kumar Vikas
Published: January 2015

Novel sol–gel-derived polysiloxanes/PEDOT:PSS nanocomposite thin films were developed with high transparency, conductivity, and superior water- and scratch-resistance.
Synthesis of Pt-Rich@Pt–Ni alloy core–shell nanoparticles using halides
Authors: Hwang Eui-Tak , Lee Young-Woo , Park Han-Chul , Kwak Da-Hee , Kim Da-Mi , Kim Si-Jin , Kim Min-Cheol , Lee Jin-Yeon , Lee Seul , Park Kyung-Won
Published: January 2015

We demonstrated the synthesis of Pt–Ni alloy core–shell nanoparticles (NPs)viaa one-pot thermal decomposition method, optimized by variation of the concentration of cetyltrimethylammonium chloride (CTAC) and reaction time.
Chain-dependent emission color codes of extended tetraphenylethylene derivatives: discrimination between water and methanol
Authors: Han Kyuwon , Cho Byoung-Ki
Published: January 2015

Despite the identical extended tetraphenylethylene chromophore, the degree of solubility between the peripheral chains and the solvent guides the aggregate morphology. The distinct emission color codes of the two luminogens can distinguish between water and methanol.
Synthesis of hierarchical beta zeolite by using a bifunctional cationic polymer and the improved catalytic performance
Authors: Yuan Yangyang , Tian Peng , Yang Miao , Fan Dong , Wang Linying , Xu Shutao , Wang Chan , Wang Dehua , Yang Yue , Liu Zhongmin
Published: January 2015

Hierarchical beta (SiO2/Al2O3 = 25–50) with enhanced catalytic properties in 1,3,5-TIPB cracking reaction is synthesized using PDADMA as a bifunctional template assisted by seeds under rotational conditions.
Highly heat resistant and thermo-oxidatively stable borosilane alkynyl hybrid polymers
Authors: Zhou Hua , Zhou Quan , Zhou Qi , Ni Lizhong , Chen Qi
Published: January 2015

A type of boron–silicon containing hybrid polymer with CC units (HBS) was prepared, and the effects of three different substituents on the properties of the polymers were studied.
Room-temperature synthesis with inert bubble templates to produce “clean” PdCoP alloy nanoparticle networks for enhanced hydrazine electro-oxidation
Authors: Ma Yuanyuan , Wang Rongfang , Wang Hui , Key Julian , Ji Shan
Published: January 2015

PdCoP alloy nanoparticle networks prepared using inert bubbles as template exhibited high activity for hydrazine oxidation.
Ammonia cation-assisted bubble template for synthesizing hollow TiO2 nanospheres and their application in lithium ion storage
Authors: Long Liuyang , Zhang Hui , Ye Ming , Fang Zhen
Published: January 2015

Hollow TiO2 nanospheres were synthesized by an ammonia cation-assisted oxygen bubble template strategy.
Nickel oxide nanoparticles: a green and recyclable catalytic system for the synthesis of diindolyloxindole derivatives in aqueous medium
Authors: Nasseri Mohammad Ali , Ahrari Faezeh , Zakerinasab Batol
Published: January 2015

This study focuses on the use of nano-NiO particles as green and inexpensive nanocatalysts for the synthesis of diindolyl oxindoles, an important class of potentially bioactive compounds.
Characterization and prediction of blend properties and evaluation of engine performance and emission parameters of a CI engine operated with various biodiesel blends
Authors: Sanjid A. , Masjuki H. H. , Kalam M. A. , Rahman S. M. Ashrafur , Abedin M. J. , Fattah I. M. Rizwanul
Published: January 2015

The present research is aimed to investigate the feasibility of using palm (PB), mustard (MB) and Calophyllum biodiesel (CB) as renewable and alternative fuels.
Convenient and efficient synthesis of disubstituted piperazine derivatives by catalyst-free, atom-economical and tricomponent domino reactions
Authors: Dong Hong-Ru , Chen Zi-Bao , Li Rong-Shan , Dong Heng-Shan , Xie Zhi-Xiang
Published: January 2015

One-pot, atom-economical, catalyst-free and tri-component domino reactions are applied to diversity-oriented synthesis (DOS) of disubstituted piperazine derivatives under mild conditions with moderate to high yields.
A simple route to CoFe2O4 nanoparticles with shape and size control and their tunable peroxidase-like activity
Authors: Zhang Ke , Zuo Wei , Wang Zhiyi , Liu Jian , Li Tianrong , Wang Baodui , Yang Zhengyin
Published: January 2015

A new precursor-mediated growth of monodisperse magnetic CoFe2O4 NPs with controlled size and shape which exhibit size and shape dependent peroxidase like activity towards TMB in the presence of H2O2.
Correction: A QM/MM study of the catalytic mechanism of α-1,4-glucan lyase from the red seaweed Gracilariopsis lemaneiformis
Authors: Su Hao , Dong Lihua , Liu Yongjun
Published: January 2015

Correction for ‘A QM/MM study of the catalytic mechanism of α-1,4-glucan lyase from the red seaweed Gracilariopsis lemaneiformis’ by Hao Su et al., RSC Adv., 2014, 4, 54398–54408.
Aggregation of poly(acrylic acid)-containing elastin-mimetic copolymers
Authors: Paik Bradford A. , Blanco Marco A. , Jia Xinqiao , Roberts Christopher J. , Kiick Kristi L.
Published: January 2015

Polymer–peptide conjugates were produced via the copper-catalyzed azide–alkyne cycloaddition of poly(tert-butyl acrylate) (PtBA) and elastin-like peptides. The aggregation of the conjugates was evaluated experimentally and computationally.
Classifying dynamic contact line modes in drying drops
Authors: Baldwin Kyle Anthony , Fairhurst David John
Published: January 2015

Evaporating droplets of both PEO polymer solutions and blood at low pressure are observed to form pillar-like deposits when dried. We use normalised h–R plots to illustrate that this behaviour is volume-independent and find scaling arguments to support our measurements that the contact line recedes with a speed inversely proportional to the droplet radius.
A simple all-solution approach to the synthesis of large ZnO nanorod networks
Authors: Resmini A. , Tredici I. G. , Cantalini C. , Giancaterini L. , De Angelis F. , Rondanina E. , Patrini M. , Bajoni D. , Anselmi-Tamburini U.
Published: January 2015

Soft-lithography of Zn-loaded hydrogels and a subsequent hydrothermal growth process yield self-assembling networks of bridging ZnO nanorods (NRs). They are grown on seeding micropillars of ZnO until they touch, forming junctions that provide a preferred electrical path for the operative current of functional devices (e.g. gas senors).
Development of pervaporation membranes using chitosan and titanium glycine-N,N-dimethylphosphonate for dehydration of isopropanol
Authors: Premakshi H. G. , Sajjan A. M. , Kariduraganavar M. Y.
Published: January 2015

Developed nanocomposite membranes demonstrated excellent performance by overcoming the trade-off phenomenon through electrostatic interactions and hydrogen bonding established between TGDMP and chitosan.
Spontaneous grafting of 9,10-phenanthrenequinone on porous carbon as an active electrode material in an electrochemical capacitor in an alkaline electrolyte
Authors: Le Comte A. , Chhin D. , Gagnon A. , Retoux R. , Brousse T. , Bélanger D.
Published: January 2015

Spontaneous grafting of 9,10-phenanthrenequinone (PQ) on Black Pearls carbon by reduction of the correspondingin situgenerated diazonium cations has been successfully achieved.
Novel silicon-doped, silicon and nitrogen-codoped carbon nanomaterials with high activity for the oxygen reduction reaction in alkaline medium
Authors: Liu Ziwu , Fu Xin , Li Meng , Wang Fang , Wang Quande , Kang Guojun , Peng Feng
Published: January 2015

Si-doped and Si, N-codoped carbon nanomaterials exhibited much higher electrocatalytic activity and longer-term stability for the oxygen reduction reaction than non-doped carbon nanomaterials, due to the changes in net charges and the energy characteristics of the Si-containing carbon framework and the adsorption mode of oxygen.
Low-temperature and template-free fabrication of cobalt oxide acicular nanotube arrays and their applications in supercapacitors
Authors: Kung Chung-Wei , Cheng Yu-Heng , Tseng Chuan-Ming , Chou Li-Yao , Ho Kuo-Chuan
Published: January 2015

Layered cobalt carbonate hydroxide (LCCH) acicular nanorod arrays (ANRAs) are converted to Co3O4 acicular nanotube arrays (ANTAs) via Kirkendall effect. The Co3O4 ANTAs exhibit a specific capacitance of 979 F g−1, which is higher than that of the Co3O4 ANRAs (191 F g−1).
High-rate, high-density FeSb–TiC–C nanocomposite anodes for lithium-ion batteries
Authors: Allcorn Eric , Manthiram Arumugam
Published: January 2015

High-density, high-rate FeSb–TiC–C nanocomposite alloy anodes composed of varying amounts of FeSb, TiC, and conductive carbon black have been synthesized by heating the metallic precursors first followed by high-energy mechanical milling (HEMM) of the product with carbon black.
Transparent, thermally and mechanically stable superhydrophobic coating prepared by an electrochemical template strategy
Authors: Xu Lianyi , Zhu Dandan , Lu Xuemin , Lu Qinghua
Published: January 2015

A transparent, thermally and mechanically stable superhydrophobic coating was exploited by combining an electrodeposited PEDOT template and chemical vapor depositions of TEOS and POTS.
Dual-response for Hg2+ and Ag+ ions based on biomimetic funnel-shaped alumina nanochannels
Authors: Wang Huimin , Hou Shengnan , Wang Qinqin , Wang Zhiwei , Fan Xia , Zhai Jin
Published: January 2015

DNA modified funnel-shaped alumina nanochannels have been fabricated, which could sense Hg2+ and Ag+ ions with good selectivity and sensitivity.
Silica-coated Au@ZnO Janus particles and their stability in epithelial cells
Authors: Susewind Moritz , Schilmann Anna-Maria , Heim Julia , Henkel Andreas , Link Thorben , Fischer Karl , Strand Dennis , Kolb Ute , Tahir Muhammad Nawaz , Brieger Jürgen , Tremel Wolfgang
Published: January 2015

Multicomponent particles have emerged in recent years as new compartmentalized colloids with two sides of different chemistry or polarity that have opened up a wide field of unique applications in medicine, physics and chemistry.
Size-dependent and real-time effect of SiO2nanoparticles on a single living HeLa Cell's membrane permeability
Authors: Kong Weiqian , Li Hao , Liu Juan , SijieGuo SijieGuo , Han Yuzhi , Huang Hui , Liu Yang , Kang Zhenhui
Published: January 2015

Low toxic and biocompatible SiO2NPs of different sizes show different effects on cell membrane permeability.
N-type field-effect transistors based on layered crystalline donor–acceptor semiconductors with dialkylated benzothienobenzothiophenes as electron donors
Authors: Tsutsumi Jun'ya , Matsuoka Satoshi , Inoue Satoru , Minemawari Hiromi , Yamada Toshikazu , Hasegawa Tatsuo
Published: January 2015

We report structural, electronic, and field-effect transistor characteristics of layered crystalline donor–acceptor semiconductors with dialkylated benzothienobenzothiophenes.
Narrow bandgap covalent–organic frameworks with strong optical response in the visible and infrared
Authors: Yang Li-Ming , Ganz Eric , Wang Song , Li Xiao-Jun , Frauenheim Thomas
Published: January 2015

We propose a new series of covalent–organic frameworks. These materials have narrow band gaps, leading to strong near infrared optical response. Density functional theory calculations are used to explore their properties. These novel infrared active materials may have potential applications in organic light-emitting devices, chemical and biological sensing, hybrid solar cells, or electroluminescence.
Uncertain disturbances’ attenuation by homogeneous multi‐input multi‐output sliding mode control and its discretisation
Authors: Levant Arie , Livne Miki
Published: January 2015

Design of multi‐input multi‐output (MIMO) homogeneous sliding modes (HSMs) for uncertain dynamic systems is considered. The resulting closed‐loop systems feature all well‐known standard properties of single‐input single‐output (SISO) HSM systems. Introduction of robust exact differentiators produces homogeneous output‐feedback controllers. The ultimate asymptotic accuracy of SISO HSM technique is proved to be preserved in the MIMO and SISO cases, if the discrete‐time implementation is based on the one‐step Euler integration.
Conductive cooling in white organic light emitting diode for enhanced efficiency and life time
Authors: Tyagi Priyanka , Kumar Arunandan , Giri Lalat Indu , Tuli Suneet , Srivastava Ritu
Published: January 2015

We demonstrate white organic light emitting diodes with enhanced efficiency (26.8 lm/W) and life time (∼11 000 h) by improved heat dissipation through encapsulation composed of a metal (Cu, Mo, and Al) and mica sheet joined using thermally conducting epoxy. Finite element simulation is used to find effectiveness of these encapsulations for heat transfer. Device temperature is reduced by about 50% with the encapsulation. This, consequently, has improved efficiency and life time by about 30% and 60%, respectively, with respect to glass encapsulation. Conductive cooling of device is suggested as the possible cause for this enhancement.
The soft-landing features of a micro-magnetorheological fluid damper
Authors: Li Junhui , Wang Wei , Xia Yang , He Hu , Zhu Wenhui
Published: January 2015

The authors demonstrate that the micro magneto-rheological fluid device is designed by the method of outer magnetic coil to generate a mechanical loading less than 20 N. The results confirm that the method can obtain miniature device easily and control the magnetic field conveniently. The magnetic field, the channel gap, and the initial position of valve plug were optimized by finite element simulation and experimental test. Additionally, an impact force at the beginning can be eliminated by using a modeled synchronous linear current, which indicates that the micro-magnetorheological fluid damper has good soft-landing performance.
Enhanced dielectric performance of three phase percolative composites based on thermoplastic-ceramic composites and surface modified carbon nanotube
Authors: Yang Yang , Sun Haoliang , Zhu Benpeng , Wang Ziyu , Wei Jianhong , Xiong Rui , Shi Jing , Liu Zhengyou , Lei Qingquan
Published: January 2015

Three-phase composites were prepared by embedding CaCu3Ti4O12(CCTO) nanoparticles and Multiwalled Carbon Nanotube (MWNT) into polyimide (PI) matrix via in-situ polymerization. The dependences of electric and dielectric properties of the resultant composites on volume fractions of filler and frequency were investigated. The dielectric permittivity of PI/CCTO-surface modified MWNT (MWNT-S) composite reached as high as 252 at 100 Hz at 0.1 vol. % filler (MWNT-S), which is about 63 times higher than that of pure PI. Also the dielectric loss is only 0.02 at 100 Hz. The results are in good agreement with the percolation theory. It is shown that embedding high aspect ratio MWNT-S in PI/CCTO composites is an effective means to enhance the dielectric permittivity and reduce the percolation threshold. The dielectric properties of the composites will meet the practical requirements for the application in high dielectric constant capacitors and high energy density materials.
Probing the molecular connectivity of water confined in polymer hydrogels
Authors: Rossi B. , Venuti V. , Mele A. , Punta C. , Melone L. , Crupi V. , Majolino D. , Trotta F. , D’Amico F. , Gessini A. , Masciovecchio C.
Published: January 2015

The molecular connectivity and the extent of hydrogen-bond patterns of water molecules confined in the polymer hydrogels, namely, cyclodextrin nanosponge hydrogels, are here investigated by using vibrational spectroscopy experiments. The proposed spectroscopic method exploits the combined analysis of the vibrational spectra of polymers hydrated with water and deuterated water, which allows us to separate and selectively investigate the temperature-evolution of the HOH bending mode of engaged water molecules and of the vibrational modes assigned to specific chemical groups of the polymer matrix involved in the physical interactions with water. As main results, we find a strong experimental evidence of a liquid-like behaviour of water molecules confined in the nano-cavities of hydrogel and we observe a characteristic destructuring effect on the hydrogen-bonds network of confined water induced by thermal motion. More interestingly, the extent of this temperature-disruptive effect is found to be selectively triggered by the cross-linking degree of the hydrogel matrix. These results give a more clear picture of the molecular mechanism of water confinement in the pores of nanosponge hydrogel and open the possibility to exploit the spectroscopic method here proposed as investigating tools for water-retaining soft materials.
Interaction between a laminar starting immersed micro-jet and a parallel wall
Authors: Cabaleiro Juan Martin , Laborde Cecilia , Artana Guillermo
Published: January 2015

In the present work, we study the starting transient of an immersed micro-jet in close vicinity to a solid wall parallel to its axis. The experiments concern laminar jets (Re < 200) issuing from a 100 μm internal tip diameter glass micro-pipette. The effect of the confinement was studied placing the micro-pipette at different distances from the wall. The characterization of the jet was carried out by visualizations on which the morphology of the vortex head and trajectories was analyzed. Numerical simulations were used as a complementary tool for the analysis. The jet remains stable for very long distances away from the tip allowing for a similarity analysis. The self-similar behavior of the starting jet has been studied in terms of the frontline position with time. A symmetric and a wall dominated regime could be identified. The starting jet in the wall type regime, and in the symmetric regime as well, develops a self-similar behavior that has a relative rapid loss of memory of the preceding condition of the flow. Scaling for both regimes are those that correspond to viscous dominated flows.
Interaction of O− and H2 at low temperatures
Authors: Jusko P. , Roučka Š. , Mulin D. , Zymak I. , Plašil R. , Gerlich D. , Čížek M. , Houfek K. , Glosík J.
Published: January 2015

Reactive collisions between O− and H2 have been studied experimentally at temperatures ranging from 10 K to 300 K using a cryogenic radiofrequency 22-pole ion trap. The rate coefficients for associative detachment, leading to H2O + e−, increase with decreasing temperature and reach a flat maximum of 1.8 × 10−9 cm3 s−1 at temperatures between 20 K and 80 K. There, the overall reaction probability is in good agreement with a capture model indicating efficient non-adiabatic couplings between the entrance potential energy surfaces. Classical trajectory calculations on newly calculated potential energy surfaces as well as the topology of the conical intersection seam leading to the neutral surface corroborate this. The formation of OH− + H via hydrogen transfer, although occurring with a probability of a few percent only (about 5 × 10−11 cm3 s−1 at temperatures 10–300 K), indicates that there are reaction paths, where electron detachment is avoided.
Onset of erosion of a granular bed in a channel driven by fluid flow
Authors: Hong Anyu , Tao Mingjiang , Kudrolli Arshad
Published: January 2015

We investigate the erosion threshold of a granular bed driven by a fluid flow as a function of grain size and grain roughness. Experiments are performed with a bed in an enclosed cylindrical channel under laminar flow conditions. The shear rate at threshold for a prescribed flow rate is obtained from the height of the fluid above the bed as it comes to rest, and used along with the grain size to determine the particle Reynolds number Rep. We estimate that the shear lift force acting on the granular surface is negligible over the range of Rep investigated. We calculate the critical Shields number θc given by the ratio of the viscous shear stress and the normal gravitation and buoyancy stresses at the threshold of motion. We find that bed armoring leads to a systematic significant increase in θc independent of the grain roughness. This observed increase is of the same order of magnitude as scatter reported in the literature when θc is drawn from different data sets. While comparing similarly prepared beds with increasing particle size, we find that θc decreases systematically with Rep, in contrast with the Shields curve which is constant at low Rep. In order to understand the condition at erosion threshold, we use the condition of torque balance at threshold to determine the critical torque needed to dislodge grains due to viscous drag. This torque is found to be significantly lower than the value needed to dislodge a spherical grain on the bed surface which is fully exposed to a linear shear flow. However, further studies of the surface packing and its evolution are needed to fully understand the observed systematic dependence on the grain size and bed preparation.