bluuebunny/crossref_metadata_2025 huggingface dataset:
Multilevel Dynamic Generalized Structured Component Analysis for Brain Connectivity Analysis in Functional Neuroimaging Data
Authors: Jung Kwanghee , Takane Yoshio , Hwang Heungsun , Woodward Todd S.
Published: February 2015

We extend dynamic generalized structured component analysis (GSCA) to enhance its data-analytic capability in structural equation modeling of multi-subject time series data. Time series data of multiple subjects are typically hierarchically structured, where time points are nested within subjects who are in turn nested within a group. The proposed approach, named multilevel dynamic GSCA, accommodates the nested structure in time series data. Explicitly taking the nested structure into account, the proposed method allows investigating subject-wise variability of the loadings and path coefficients by looking at the variance estimates of the corresponding random effects, as well as fixed loadings between observed and latent variables and fixed path coefficients between latent variables. We demonstrate the effectiveness of the proposed approach by applying the method to the multi-subject functional neuroimaging data for brain connectivity analysis, where time series data-level measurements are nested within subjects.
Surgical management for displaced pediatric proximal humeral fractures: A cost analysis
Authors: Shore Benjamin J. , Hedequist Daniel J. , Miller Patricia E. , Waters Peter M. , Bae Donald S.
Published: February 2015

Purpose

The purpose of this investigation was to determine which of the following methods of fixation, percutaneous pinning (PP) or intramedullary nailing (IMN), was more cost-effective in the treatment of displaced pediatric proximal humeral fractures (PPHF).

Methods

A retrospective cohort of surgically treated PPHF over a 12-year period at a single institution was performed. A decision analysis model was constructed to compare three surgical strategies: IMN versus percutaneous pinning leaving the pins exposed (PPE) versus leaving the pins buried (PPB). Finally, sensitivity analyses were performed, assessing the cost-effectiveness of each technique when infection rates and cost of deep infections were varied.

Results

A total of 84 patients with displaced PPHF underwent surgical stabilization. A total of 35 cases were treated with IMN, 32 with PPE, and 17 with PPB. The age, sex, and preoperative fracture angulation were similar across all groups. A greater percentage of open reduction was seen in the IMN and PPB groups ( p = 0.03), while a higher proportion of physeal injury was seen in the PPE group ( p = 0.02). Surgical time and estimated blood loss was higher in the IMN group ( p < 0.001 and p = 0.01, respectively). The decision analysis revealed that the PPE technique resulted in an average cost saving of $4,502 per patient compared to IMN and $2,066 compared to PPB. This strategy remained cost-effective even when the complication rates with exposed implants approached 55 %.

Conclusions

Leaving pins exposed after surgical fixation of PPHF is more cost-effective than either burying pins or using intramedullary fixation.
Pyrroloquinoline quinone against glutamate‐induced neurotoxicity in cultured neural stem and progenitor cells
Authors: Guan Shui , Xu Jianqiang , Guo Yifu , Ge Dan , Liu Tianqing , Ma Xuehu , Cui Zhanfeng
Published: February 2015

Pyrroloquinoline quinone (PQQ), as a well‐known redox enzyme cofactor, has been proven to play important roles in the regulation of cellular growth and development in mammals. Numerous physiological and medicinal functions of PQQ have so far been reported although its effect on neural stem and progenitor cells (NS/PCs) and the potential mechanism were even rarely investigated. In this study, the neuroprotective effects of PQQ were observed by pretreatment of NS/PCs with PQQ before glutamate injury, and the possible mechanisms were examined. PQQ stimulated cell proliferation and markedly attenuated glutamate‐induced cell damage in a dose‐dependent manner. By observing the nuclear morphological changes and flow cytometric analysis, PQQ pretreatment showed its significant effect on protecting NS/PCs against glutamate‐induced apoptosis/necrosis. PQQ neuroprotection was associated with the decrease of intracellular reactive oxygen species (ROS) production, the increase of glutathione (GSH) levels, and the decrease of caspase‐3 activity. In addition, pretreatment with PQQ also significantly enhanced the activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) in the NS/PCs exposed to glutamate. These results suggest that PQQ can protect NS/PCs against glutamate toxicity associated with ROS‐mediated mitochondrial pathway, indicating a useful chemical for the clinical application of NS/PCs.
Not just another paediatric neck lump: metastatic cribriform adenocarcinoma of the palate in an adolescent
Authors: Takhar A S , Simmons A , Ffolkes L , Hyde N
Published: February 2015

Objective:

This paper reports the case of a 13-year-old girl with a 2-year history of left cervical lymph node swelling that was diagnosed as metastatic cribriform adenocarcinoma of the tongue and minor salivary gland.

Case report:

A 13-year-old girl with a left, level II cervical lymph node underwent excisional biopsy after an ultrasound suggested suspicious features. The histology indicated polymorphous low-grade adenocarcinoma, and a primary lesion in the left palate was identified. The patient underwent left maxillectomy, neck dissection and reconstruction. Histological analysis of resection specimens led to a revised diagnosis of cribriform adenocarcinoma of the tongue and minor salivary gland.

Conclusion:

Cribriform adenocarcinoma of the tongue and minor salivary gland has recently been described as a separate entity to polymorphous low-grade adenocarcinoma in light of histological and behavioural differences, including higher rates of metastasis at presentation. This is the first report in the world literature of an adolescent with this entity. It is possible that some previous reports of polymorphous low-grade adenocarcinoma in childhood would have been more accurately described as cribriform adenocarcinoma of the tongue and minor salivary gland.
Outcomes with gold wire and hydroxyapatite partial ossicular replacement prostheses in type 2 tympanoplasty: a preliminary study
Authors: Katilmis H , Songu M , Aslan H , Ozkul Y , Basoglu S , Kulduk E , Eren E , Candan H
Published: February 2015

Objectives:

To compare the hearing results and graft take rates of the recently developed gold wire prosthesis with those of the hydroxyapatite partial ossicular replacement prosthesis in patients with chronic otitis media.

Method:

This retrospective study examined patients who underwent type 2 tympanoplasty with a minimum follow up of one year. The study population consisted of 32 patients in the partial ossicular replacement prosthesis group and 26 patients in the gold wire group. The main outcome measures were the graft success rate and level of hearing improvement. Complications and extrusion rates were also noted.

Results:

The graft take rate was 90.6 per cent for the partial ossicular replacement prosthesis group and 92.3 per cent for the gold wire group (p = 0.848). Pre-operatively, there were no significant differences in the air or bone-conduction thresholds between groups. Post-operatively, the mean hearing gain was 18.5 ± 14.0 dB in the partial ossicular replacement prosthesis group and 16.5 ± 10.6 dB in the gold wire group (p = 0.555). The mean air-conduction thresholds were 26.6 ± 12.4 and 32.6 ± 10.5 dB, respectively (p = 0.027), and the mean bone-conduction thresholds were 9.7 ± 7.0 and 10.4 ± 6.4 dB, respectively (p = 0.687).

Conclusion:

The success and complication rates provided by the gold wire prosthesis seem comparable to those of the hydroxyapatite partial ossicular replacement prosthesis.
Visual loss in patients with sphenoethmoidal cells
Authors: Rimmer J , Beale T , Lund V J
Published: February 2015

Background:

A sphenoethmoidal cell is a posterior ethmoid cell that pneumatises superiorly and/or laterally to the sphenoid sinus. Disease within such a cell may cause visual symptoms because of the close relationship of the optic nerve.

Case reports:

This paper reports four cases of chronic rhinosinusitis involving a sphenoethmoidal cell, two with visual loss. The management of such cases is discussed and the current literature is reviewed.

Conclusion:

Pathology within a sphenoethmoidal cell must be considered in cases of optic neuropathy. The presence of these cells may be relevant even in cases of seemingly uncomplicated rhinosinusitis as they are associated with a higher rate of optic nerve protrusion and dehiscence.
DELIBERATION, JUDGEMENT AND THE NATURE OF EVIDENCE
Authors: Williamson Jon
Published: February 2015

A normative Bayesian theory of deliberation and judgement requires a procedure for merging the evidence of a collection of agents. In order to provide such a procedure, one needs to ask what the evidence is that grounds Bayesian probabilities. After finding fault with several views on the nature of evidence (the views that evidence is knowledge; that evidence is whatever is fully believed; that evidence is observationally set credence; that evidence is information), it is argued that evidence is whatever is rationally taken for granted. This view is shown to have consequences for an account of merging evidence, and it is argued that standard axioms for merging need to be altered somewhat.
HOW TO PLAY GAMES? NASH VERSUS BERGE BEHAVIOUR RULES
Authors: Courtois Pierre , Nessah Rabia , Tazdaït Tarik
Published: February 2015

Assuming that in order to best achieve their goal, individuals adapt their behaviour to the game situation, this paper examines the appropriateness of the Berge behaviour rule and equilibrium as a complement to Nash. We define a Berge equilibrium and explain what it means to play in this fashion. We analyse the rationale of individuals playing in a situational manner, and establish an operational approach that describes the circumstances under which the same individual might play in one fashion versus another.
HAUSMAN AND MCPHERSON ON WELFARE ECONOMICS AND PREFERENCE SATISFACTION THEORIES OF WELFARE: A CRITICAL NOTE
Authors: Sarch Alexander F.
Published: February 2015

Hausman and McPherson defend welfare economics by claiming that even if welfare does not consist in preference satisfaction, preferences still provide good, if fallible, evidence of welfare. I argue that this strategy does not yet fully solve the problems for welfare economics stemming from the preference satisfaction theory of welfare. More work is needed to show that our self-interested preferences are sufficiently reliable, or in some other sense our best, evidence of well-being. Thus, my aim is to identify the challenges that remain and clarify what additional work is needed before Hausman and McPherson's defence of welfare economics succeeds.
A MONOGRAPHIC REVISION OF THE GENUS PODOCARPUS (PODOCARPACEAE): II. THE SPECIES OF THE CARIBBEAN BIOREGION*
Authors: Mill R. R.
Published: February 2015

The species of Podocarpus L’Hér. ex Pers. (Podocarpaceae) occurring on the islands of the Caribbean (excluding Trinidad and Tobago) are revised. Nine species are recognised, of which eight are known to be endemic to the Caribbean Bioregion. None of the species have infraspecific taxa. Four occur on Cuba, two on Hispaniola, two on Jamaica, and one on Puerto Rico and the Lesser Antilles. Keys are provided to all the species and to the species of Cuba, Hispaniola and Jamaica. The distributions of all species are mapped and discussed in relation to the geological history of the region as well as the climate, especially rainfall. The names Podocarpus urbanii Pilg. and Podocarpus buchii var. latifolius Florin are lectotypified. Revised or new IUCN conservation assessments are proposed for Podocarpus angustifolius, P. aristulatus and P. victorinianus and the existing assessments are detailed for the remaining species.
Materialising the Olympic legacy: design and development narratives
Authors: Davis Juliet
Published: February 2015

The Queen Elizabeth Olympic Park in east London has a fantastic opportunity to lead the way in sustainable living for its neighbours across London and beyond. However, sustainability in the Park goes beyond the environment. It is also a story of social equality and employment, and of economic growth and prosperity.
Futures past
Authors: Mann William
Published: February 2015

For the 2012 Olympics, London was announced to us in images and words which combined sophisticated rhetoric and crude simplification. Two related promises emerged from the compact between design and politics: to replace a fragmented, neglected and polluted area with a smooth, harmonious new city district; and to bequeath an enduring foundation, a ‘legacy’, to the future. The references to ecology and inequality can be identified with their early twenty-first century moment, but the spatial strategy of a city in a park was something of a throwback to the twentieth and nineteenth centuries: a techno-pastoral in which nature redeems the city from its fallen state. In short: a vision of the future inherited from the past.
From green park to theme park? Evolving legacy visions for London's Olympic Park
Authors: Smith Andrew
Published: February 2015

The Queen Elizabeth Olympic Park (QEOP) opened to the public in 2013/2014. In the preceding ten years the future of this 250-hectare site in east London was subjected to intense debate, planning and envisioning. This paper analyses the evolving vision for the Park during this period. The analysis contributes to the literature on this significant case, but it also helps us to appreciate the challenges associated with event-led urban projects and the design and management of public parks in the twenty-first century. The paper is based on the author's attendance at over thirty seminars, conferences and public events 2004–2014 at which officials and relevant professionals presented their work and ideas about the Park. These presentations were analysed alongside the enormous number of policies, plans and strategies (and accompanying media coverage) published to reveal the sort of place that was envisioned by the professionals hired to shape it.
A promised future and the open city: issues of anticipation in Olympic legacy designs
Authors: Davis Juliet
Published: February 2015

In the literature that has dealt to date with architecture and urban design related to London's 2012 Olympics and their urban legacy, emphasis has been placed on questions of where and what has been built or envisioned, and on how this can be viewed as reflective of broader political agendas, economic contexts and accompanying issues. In this, there has been relatively little emphasis on design processes and ideas, and particularly on questions of how these are oriented toward and help construct urban legacy as a future – as a matter of how and when. An urban legacy design process was established in 2008 to facilitate the transition of the Olympic Park to a set of new neighbourhoods by 2031 and, through it, to help fulfil a promise of long-term sustainable regeneration for east London. The twenty-three year timeframe and its intended outcome raise questions concerning the urban and architectural imagination of distant futures as of the possible processes of their realisation. Indeed, the ability to design for legacy depends on ways of anticipating the social, political and economic realities that will shape development in east London in the future and of using these to both chart and represent possible paths and conceptual approaches to desired outcomes.
Together apart: Hackney Wick, the Olympic site and relational art
Authors: Marrero-Guillamón Isaac
Published: February 2015

As soon as the bid to host the 2012 Olympics was won by London in 2005, and the plans to build the Olympic site in the Lower Lea Valley were announced, an inconspicuous yet steady stream of artistic projects started to interrogate the impact that the transformation of the area would have on its inhabitants, landscape and social life. This undercurrent of criticality, largely invisible to the mainstream, offered an alternative to the official account of the process – one that spoke of displacement, surveillance and the effacement of local history. Through a myriad of art works, images, events and discussions, an important space of dissent was produced in the lead up to the Games. The relational, collective and public dimension of these artistic practices is explored in the first part of this article, via an analysis of Jim Woodall's Olympic State project in Hackney Wick.
Lea Valley Drift: paths, objects and the creation of urban narratives
Authors: Froome-Lewis Oliver
Published: February 2015

This article considers the legacies of place revealed by critical walking journeys through the city and the potential for transforming their interpretation through the distribution of new forms of map. As Francesco Careri implies in Walkscapes: Walking as an Aesthetic Practice, walking pre-dates the city and nomadism is the original condition of civilised living. Put simply, settlement is the process of civilisation becoming static.
Cellular oxidative stress response mediates radiosensitivity in Fus1-deficient mice
Authors: Yazlovitskaya E M , Voziyan P A , Manavalan T , Yarbrough W G , Ivanova A V
Published: February 2015

Mechanism of radiosensitivity of normal tissues, a key factor in determining the toxic side effects of cancer radiotherapy, is not fully understood. We recently demonstrated that deficiency of mitochondrial tumor suppressor, Fus1, increases radiosensitivity at the organismal, tissue and cellular levels. Since Fus1-deficient mice and cells exhibit high levels of oxidative stress, we hypothesized that dysregulation of cellular antioxidant defenses may contribute to the increased radiosensitivity. To address this potential mechanism, we treated the Fus1 KO mice with an inhibitor of pathogenic oxidative reactions, pyridoxamine (PM). Treatment with PM ameliorated IR-induced damage to GI epithelium of Fus1 KO mice and significantly increased the survival of irradiated mice. In cultured Fus1 KO epithelial cells, IR-induced oxidative stress was enhanced because of inadequate cellular antioxidant defenses, such as low levels and/or activities of cytochrome C, Sod 2 and STAT3. This resulted in dysregulation of IR-induced DNA-damage response and DNA synthesis. Treatment of Fus1 KO cells with PM or Sod 2 mimetic Tempol normalized the oxidative stress response, thus compensating to a significant degree for inadequate antioxidant response. Our findings using Fus1 KO radiosensitive mice suggest that radiosensitivity is mediated via dysregulation of antioxidant response and defective redox homeostasis.
Mer receptor tyrosine kinase mediates both tethering and phagocytosis of apoptotic cells
Authors: Dransfield I , Zagórska A , Lew E D , Michail K , Lemke G
Published: February 2015

Billions of inflammatory leukocytes die and are phagocytically cleared each day. This regular renewal facilitates the normal termination of inflammatory responses, suppressing pro-inflammatory mediators and inducing their anti-inflammatory counterparts. Here we investigate the role of the receptor tyrosine kinase (RTK) Mer and its ligands Protein S and Gas6 in the initial recognition and capture of apoptotic cells (ACs) by macrophages. We demonstrate extremely rapid binding kinetics of both ligands to phosphatidylserine (PtdSer)-displaying ACs, and show that ACs can be co-opsonized with multiple PtdSer opsonins. We further show that macrophage phagocytosis of ACs opsonized with Mer ligands can occur independently of a requirement for αV integrins. Finally, we demonstrate a novel role for Mer in the tethering of ACs to the macrophage surface, and show that Mer-mediated tethering and subsequent AC engulfment can be distinguished by their requirement for Mer kinase activity. Our results identify Mer as a receptor uniquely capable of both tethering ACs to the macrophage surface and driving their subsequent internalization.
Vibrio vulnificus VvhA induces NF-κB-dependent mitochondrial cell death via lipid raft-mediated ROS production in intestinal epithelial cells
Authors: Lee S-J , Jung Y H , Oh S Y , Song E J , Choi S H , Han H J
Published: February 2015

The Gram-negative bacteriumVibrio vulnificusproduces hemolysin (VvhA), which induces cytotoxicity in mammalian cells. However, our understanding of the cytotoxic mechanism and the modes of action of VvhA are still fragmentary and incomplete. The recombinant protein (r) VvhA (50 pg/ml) significantly induces necrotic cell death and apoptosis in human intestinal epithelial (INT-407) cells. The apoptotic cell death induced by rVvhA is highly susceptible to the sequestration of cholesterol by methyl-β-cyclodextrin, whereas for necrotic cell death, this shows a marginal effect. We found that rVvhA induces the aggregation of lipid raft components coupled with NADPH oxidase enzymes, in which rVvhA increased the interaction of NADPH oxidase 2 (NOX2, gp91phox) with a cytosolic protein NCF1 (p47phox) to facilitate the production of reactive oxygen species (ROS). rVvhA uniquely stimulated a conventional PKC isoform PKCαand induced the phosphorylation of both ERK and JNK, which are responsible for the activation of transcription factor NF-κB. rVvhA induced an NF-κB-dependent imbalance of the Bcl-2/Bax ratio, the release of mitochondrial cytochromec, and caspase-3/-9 activation during its promotion of apoptotic cell death. In addition, rVvhA has the ability to inhibit the expression of cell cycle-related proteins, such as CDK2, CDK4, cyclin D1, and cyclin E. These results demonstrate that rVvhA induces NF-κB-dependent mitochondrial cell death via lipid raft-mediated ROS production by the distinct activation of PKCαand ERK/JNK in intestinal epithelial cells.
Structural and biochemical changes underlying a keratoderma-like phenotype in mice lacking suprabasal AP1 transcription factor function
Authors: Rorke E A , Adhikary G , Young C A , Rice R H , Elias P M , Crumrine D , Meyer J , Blumenberg M , Eckert R L
Published: February 2015

Epidermal keratinocyte differentiation on the body surface is a carefully choreographed process that leads to assembly of a barrier that is essential for life. Perturbation of keratinocyte differentiation leads to disease. Activator protein 1 (AP1) transcription factors are key controllers of this process. We have shown that inhibiting AP1 transcription factor activity in the suprabasal murine epidermis, by expression of dominant-negative c-jun (TAM67), produces a phenotype type that resembles human keratoderma. However, little is understood regarding the structural and molecular changes that drive this phenotype. In the present study we show that TAM67-positive epidermis displays altered cornified envelope, filaggrin-type keratohyalin granule, keratin filament, desmosome formation and lamellar body secretion leading to reduced barrier integrity. To understand the molecular changes underlying this process, we performed proteomic and RNA array analysis. Proteomic study of the corneocyte cross-linked proteome reveals a reduction in incorporation of cutaneous keratins, filaggrin, filaggrin2, late cornified envelope precursor proteins, hair keratins and hair keratin-associated proteins. This is coupled with increased incorporation of desmosome linker, small proline-rich, S100, transglutaminase and inflammation-associated proteins. Incorporation of most cutaneous keratins (Krt1, Krt5 and Krt10) is reduced, but incorporation of hyperproliferation-associated epidermal keratins (Krt6a, Krt6b and Krt16) is increased. RNA array analysis reveals reduced expression of mRNA encoding differentiation-associated cutaneous keratins, hair keratins and associated proteins, late cornified envelope precursors and filaggrin-related proteins; and increased expression of mRNA encoding small proline-rich proteins, protease inhibitors (serpins), S100 proteins, defensins and hyperproliferation-associated keratins. These findings suggest that AP1 factor inactivation in the suprabasal epidermal layers reduces expression of AP1 factor-responsive genes expressed in late differentiation and is associated with a compensatory increase in expression of early differentiation genes.
A balance between membrane elasticity and polymerization energy sets the shape of spherical clathrin coats
Authors: Saleem Mohammed , Morlot Sandrine , Hohendahl Annika , Manzi John , Lenz Martin , Roux Aurélien
Published: February 2015

In endocytosis, scaffolding is one of the mechanisms to create membrane curvature by moulding the membrane into the spherical shape of the clathrin cage. However, the impact of membrane elastic parameters on the assembly and shape of clathrin lattices has never been experimentally evaluated. Here, we show that membrane tension opposes clathrin polymerization. We reconstitute clathrin budding in vitro with giant unilamellar vesicles (GUVs), purified adaptors and clathrin. By changing the osmotic conditions, we find that clathrin coats cause extensive budding of GUVs under low membrane tension while polymerizing into shallow pits under moderate tension. High tension fully inhibits polymerization. Theoretically, we predict the tension values for which transitions between different clathrin coat shapes occur. We measure the changes in membrane tension during clathrin polymerization, and use our theoretical framework to estimate the polymerization energy from these data. Our results show that membrane tension controls clathrin-mediated budding by varying the membrane budding energy.
Origin and consequences of silicate glass passivation by surface layers
Authors: Gin Stéphane , Jollivet Patrick , Fournier Maxime , Angeli Frédéric , Frugier Pierre , Charpentier Thibault
Published: February 2015

Silicate glasses are durable materials, but are they sufficiently durable to confine highly radioactive wastes for hundreds of thousands years? Addressing this question requires a thorough understanding of the mechanisms underpinning aqueous corrosion of these materials. Here we show that in silica-saturated solution, a model glass of nuclear interest corrodes but at a rate that dramatically drops as a passivating layer forms. Water ingress into the glass, leading to the congruent release of mobile elements (B, Na and Ca), is followed by in situ repolymerization of the silicate network. This material is at equilibrium with pore and bulk solutions, and acts as a molecular sieve with a cutoff below 1 nm. The low corrosion rate resulting from the formation of this stable passivating layer enables the objective of durability to be met, while progress in the fundamental understanding of corrosion unlocks the potential for optimizing the design of nuclear glass-geological disposal.
Fluorographane (C1HxF1−x−δ)n: synthesis and properties
Authors: Sofer Zdeněk , Šimek Petr , Mazánek Vlastimil , Šembera Filip , Janoušek Zbyněk , Pumera Martin
Published: February 2015

Fluorographane (C1HxF1−x−δ)n was obtained from graphene by hydrogenation via the Birch reaction with consequent fluorination of the resulting graphane.
Asymmetric hydroamination catalyzed by a new chiral zirconium system: reaction scope and mechanism
Authors: Zhou Xiaoguang , Wei Bing , Sun Xiu-Li , Tang Yong , Xie Zuowei
Published: February 2015

A new class of pincer-like chiral [O−NO−]ZrR2 systems has been developed for efficient asymmetric hydroamination of primary aminoalkenes with up to 94% ee and ≥95% conversion.
Rh2(esp)2-catalyzed allylic and benzylic oxidations
Authors: Wang Yi , Kuang Yi , Wang Yuanhua
Published: February 2015

The dirhodium(ii) catalyst Rh2(esp)2 allows direct solvent-free allylic and benzylic oxidation by T-HYDRO with a remarkably low catalyst loading.
X-ray spectroscopy as a probe for lithium polysulfide radicals
Authors: Pascal Tod A. , Pemmaraju C. D. , Prendergast David
Published: February 2015

Sulfur K-edge XAS of the trisulfur radical dissolved in TEGDME from first-principles calculations.
The ratio and topology effects of benzodithiophene donor–benzooxadiazole acceptor fragments on the optoelectronic properties of donor molecules toward solar cell materials
Authors: Bibi Shamsa , Zhang Jingping
Published: February 2015

Theoretical analysis to determine the effect of different D/A ratios, topologies and binding positions of donor–acceptor fragments on the optoelectronic properties of the donor solar cell materials.
Electrochemical in situ investigations of SEI and dendrite formation on the lithium metal anode
Authors: Bieker Georg , Winter Martin , Bieker Peter
Published: February 2015

In comparative studies of the lithium metal anode in liquid electrolytes the self-enforcing heterogeneity of lithium deposition and dissolution is understood in a model of different stages.
The crystal structure and upconversion properties of Yb3+, Er3+/Ho3+ codoped BaLiF3 microcrystals with different morphologies
Authors: Qiang Qinping , Chen Wenbo , Ma Xinlong , Wang Yuhua
Published: February 2015

A series of x mol% Yb3+, 1 mol% Ho3+/1 mol% Er3+ (0 ≤ x ≤ 25) codoped BaLiF3 microcrystals with different cubic morphologies and sizes (1.52 μm–3.83 μm) were synthesized by a facile surfactant-assisted hydrothermal-microemulsion approach for the first time.
Predicting the reactivity of hydride donors in water: thermodynamic constants for hydrogen
Authors: Connelly Samantha J. , Wiedner Eric S. , Appel Aaron M.
Published: February 2015

To improve prediction and comparison of hydride reactivity, self-consistent thermodynamic constants for H+/˙/− and H2 are proposed for water.
Metabolic fingerprint after acute and under sustained consumption of a functional beverage based on grape skin extract in healthy human subjects
Authors: Khymenets Olha , Andres-Lacueva Cristina , Urpi-Sarda Mireia , Vazquez-Fresno Rosa , Mart Mercè Mercader , Reglero Guillermo , Torres Mireia , Llorach Rafael
Published: February 2015

Metabolomics approach identified markers of intake of functional beverage based on grape skin extracts.
Double carbonylation of aryl iodides with amines under an atmospheric pressure of carbon monoxide using sulfur-modified Au-supported palladium
Authors: Saito Nozomi , Taniguchi Takahisa , Hoshiya Naoyuki , Shuto Satoshi , Arisawa Mitsuhiro , Sato Yoshihiro
Published: February 2015

A double carbonylation of aryl iodides with amines proceeded by using Pd nano particles leached from SAPd to give α-ketoamides.
Strategically designed biomodel: engineering C3–C4 cleavage ofd-fructose
Authors: Singh Palwinder , Kumar Arun , Kaur Sukhmeet , Singh Amrinder
Published: February 2015

Amongst a library of aldolase inspired, rationally designed compounds, the acridine derivative carrying a (S)-Tyr-Gly-(S)-Lys tripeptide selectively effected C3–C4 scissoring ofd-fructose and producedd-glyceraldehyde and dihydroxyacetone.
Colored single-chain polymeric nanoparticles via intramolecular copper phthalocyanine formation
Authors: Jeong Jonghwa , Lee Yun-Jung , Kim Bohyun , Kim Byoungjae , Jung Ki-Suck , Paik Hyun-jong
Published: February 2015

Colored single-chain polymeric nanoparticles were synthesized by intramolecular formation of copper phthalocyanines from polystyrene-co-poly[4-((4-vinylbenzyl)oxy)phthalonitrile] under diluted conditions.
Synthesis and characterization of antimicrobial textile finishing based on Ag:ZnO nanoparticles/chitosan biocomposites
Authors: Buşilă Mariana , Muşat Viorica , Textor Torsten , Mahltig Boris
Published: February 2015

Hybrid biocomposite coatings of ZnO and Ag:ZnO nanoparticles with antibacterial activity were prepared and dispersed in chitosan.
Identification and pharmacokinetics of the major constituents of Fugan Fang in rat plasma
Authors: Jiang Peng , Wang Qian , Jia Yi-Qun , Shi Rong , Ma Yue-Ming , Liu Ping , Liu Cheng-Hai , Ye Fu-Yuan , Cheng Neng-Neng
Published: February 2015

The major constituents and their pharmacokinetics of FGF, an TCM prescribed for the treatment of hepatic diseases in rat plasma.
Adsorption of phosphate onto amine functionalized nano-sized magnetic polymer adsorbents: mechanism and magnetic effects
Authors: Shen Haoyu , Wang Zhejun , Zhou Ameng , Chen Junliang , Hu Meiqin , Dong Xinyan , Xia Qinghua
Published: February 2015

Tetraethylenepentamine-functionalized core–shell structured nanomagnetic Fe3O4 polymers (TEPA-Fe3O4-NMPs) with different amounts of magnetic core were synthesized and fully characterized. The magnetic core might favor mass transfer accelerating the adsorption process.
Palladium nanoparticles supported on 1,3-dicyclohexylguanidine functionalized mesoporous silica SBA-15 as highly active and reusable catalyst for the Suzuki–Miyaura cross-coupling reaction
Authors: Veisi Hojat , Amini Manesh Abbas , Eivazi Neda , Faraji Ali Reza
Published: February 2015

The synthesis and application of SBA-15/1,3-DCG/Pd as a novel heterogeneous and reusable nano catalyst in Suzuki reactions was described.
Combustion characterization and modeling of novel nanoenergetic composites of Co3O4/nAl
Authors: Patel Vinay Kumar , Saurav Jayant Raj , Gangopadhyay Keshab , Gangopadhyay Shubhra , Bhattacharya Shantanu
Published: February 2015

Novel Co3O4nanobelts based bulk nanoenergetic systems have been developed which are able to generate mild to moderate peak pressure and pressurization rates as demanded in shock wave mediated biomedical applications.
UV-A and UV-B excitation region broadened novel green color-emitting CaGd2ZnO5:Tb3+ nanophosphors
Authors: Rama Raju G. Seeta , Pavitra E. , Nagaraju Goli , Guan Xiang-Yu , Yu Jae Su
Published: February 2015

CaGd2ZnO5:Tb3+ nanophosphors showed the broadened excitation region as compared to Y2O3:Tb3+ and Gd2O3:Tb3+ phosphors, which covered almost the entire UV-B and UV-A regions.
Superparamagnetic Fe3O4nanoparticles modified by water-soluble and biocompatible polyethylenimine for lipase immobilization with physical and chemical mechanisms
Authors: Zhu Weiwei , Li Yijing , Zeng Fang , Yin Hang , Wang Liyuan , Zhu Hao
Published: February 2015

A solvothermal method was applied to prepare magnetic nanoparticles. And after being coated by PEI, the nanoparticles were able to be modified by glutaraldehyde. Then the supports can be used to immobilize lipase covalently, as well asviaionic exchange.
Effect of hydrothermal oxidation temperatures on tribological properties of carbon fabric/resin friction materials
Authors: Fei Jie , Wang Hong-Kun , Li He-Jun , Huang Jian-Feng , Cao Li-Yun , Luo Wei
Published: February 2015

FTIR-ATR spectra shows bands at 1737 cm−1 are attributed to carbonyl groups while bands at 2800–3000 cm−1 attributed to hydrocarbon groups, whereas bands at 1100–1193 cm−1 attributed to C–O bonds showing presence of carbonyl groups on carbon fiber.
A coral-inspired nanoscale design of Sn–Cu/PANi/GO hybrid anode materials for high performance lithium-ion batteries
Authors: Dou Peng , Jiang Anni , Fan Xin , Ma Daqian , Xu Xinhua
Published: February 2015

A facile and scalable synthesis approach is developed for fabrication of a three-dimensional (3D) polyaniline (PANi)/graphene oxide (GO) hybrid hydrogel evenly embed with hollow Sn–Cu nanoparticles (Sn–Cu NPs) as high performance anodes.
An exceptionally stable 3D GdIII-organic framework for use as a magnetocaloric refrigerant
Authors: Zhang Shaowei , Duan Eryue , Cheng Peng
Published: February 2015

The first example of a 3D GdIII-H4abtc framework was successfully prepared, exhibiting a large cryogenic magnetocaloric effect and exceptional air and chemical stabilities, especially in water and under acidic/alkaline conditions.
Multifunctional spherical gold nanocluster aggregate@polyacrylic acid@mesoporous silica nanoparticles for combined cancer dual-modal imaging and chemo-therapy
Authors: Wu Xiaotong , Li Lu , Zhang Lingyu , Wang Tingting , Wang Chungang , Su Zhongmin
Published: February 2015

Multifunctional nanoparticles with aggregation enhanced fluorescence (AEF) properties were fabricated. The resulting NPs were employed as novel theranostic agents for simultaneous dual-modal imaging and chemo-therapy of liver cancer in vivo and in vitro.
Multiple C–H borylation of phenylhydrazones to boron–nitrogen analogues of benzopentalene
Authors: Ma Cong , Zhang Jianying , Li Jianfeng , Cui Chunming
Published: February 2015

Synthesis of the first boron–nitrogen analogues of benzopentalene by one-pot multiple C–H borylation of phenylhydrazones and their unique electronic structures.
Passerini/Tsuji–Trost strategies towards achieving lactams and cyclopentane derivatives
Authors: Cordier Marie , Dos Santos Aurélie , El Kaïm Laurent , Narboni Noisette
Published: February 2015

When Tsuji–Trost meets Passerini: Tsuji–Trost addition of malonic derivatives to Passerini adducts towards achieving lactams and cyclopentanes.
In silico prediction of MOFs with high deliverable capacity or internal surface area
Authors: Bao Yi , Martin Richard L. , Haranczyk Maciej , Deem Michael W.
Published: February 2015

Metal–organic frameworks (MOFs) offer unprecedented atom-scale design and structural tunability, largely due to the vast number of possible organic linkers which can be utilized in their assembly.
Structural investigation of the A-site vacancy in scheelites and the luminescence behavior of two continuous solid solutions A1–1.5xEux□0.5xWO4 and A0.64–0.5yEu0.24Liy□0.12–0.5yWO4 (A = Ca, Sr; □ = vacancy)
Authors: Jiang Pengfei , Gao Wenliang , Cong Rihong , Yang Tao
Published: February 2015

A detailed structural characterization on A1–1.5xEux□0.5xWO4 and A0.64–0.5yEu0.24Liy□0.12–0.5yWO4 (A = Ca, Sr; □ = vacancy) prove the A-site vacancy mechanism for charge balance.
Ni–Pt nanoparticles growing on metal organic frameworks (MIL-96) with enhanced catalytic activity for hydrogen generation from hydrazine at room temperature
Authors: Wen Lan , Du Xiaoqiong , Su Jun , Luo Wei , Cai Ping , Cheng Gongzhen
Published: February 2015

3.2 nm NiPt nanoparticles have been successfully grown on the surface of MIL-96, which exhibit 100% hydrogen selectivity and the highest catalytic activity toward dehydrogenation of hydrazine with TOF value of 114.3 h−1 at room temperature.
Vibrational probing of the hydrogen-bond structure and dynamics of water in aqueous NaPF6 solutions
Authors: Lee Chiho , Nam Dayoung , Park Sungnam
Published: February 2015

The H-bond structures and dynamics of water in bulk and ionic hydration shells in aqueous NaPF6 solutions were measured at different NaPF6 concentrations.
Nanocapsules templated on liquid cores stabilized by graft amphiphilic polyelectrolytes
Authors: Szafraniec Joanna , Janik Małgorzata , Odrobińska Joanna , Zapotoczny Szczepan
Published: February 2015

A surfactant-free method of preparation of nanocapsules templated on liquid cores using amphiphilic graft polyelectrolytes was developed. The nanocapsules were further coated with polyelectrolyte multilayers.
Facile synthesis of cyclosiloxane-based polymers for hybrid film formation
Authors: Demirci Ali , Yamamoto Shunsuke , Matsui Jun , Miyashita Tokuji , Mitsuishi Masaya
Published: February 2015

A one-pot facile synthesis of cyclosiloxane-based hybrid polymers based on hydrosilylation reaction and their network polymer film formationviaself-crosslinking by hydrolysis/condensation reactions are reported.
Correction: Novel strategies for catalytic asymmetric synthesis of C1-chiral 1,2,3,4-tetrahydroisoquinolines and 3,4-dihydrotetrahydroisoquinolines
Authors: Liu Wangsheng , Liu Shasha , Jin Ruiwen , Guo Hao , Zhao Jinbo
Published: February 2015

Correction for ‘Novel strategies for catalytic asymmetric synthesis of C1-chiral 1,2,3,4-tetrahydroisoquinolines and 3,4-dihydrotetrahydroisoquinolines’ by Wangsheng Liu et al., Org. Chem. Front., 2015, DOI: 10.1039/c4qo00294f.
Self-assembly of DNA wrapped carbon nanotubes and asymmetrical cyanine dyes into fluorescent nanohybrids
Authors: Cavuslar O. , Unal H.
Published: February 2015

Carbon nanotubes, asymmetrical cyanine dyes and single stranded DNA self-assemble into light absorbing hybrid nanostructures that are highly fluorescent.
Synthesis and evaluation of cationically modified poly(styrene-alt-maleic anhydride) nanocarriers for intracellular gene delivery
Authors: Aji Alex M. R. , Nagpal Neha , Kulshreshtha Ritu , Koul Veena
Published: February 2015

The paper discusses the intracellular gene delivery efficacy of various cationic PSMA derivatives.
Fast and low-temperature synthesis of one-dimensional (1D) single-crystalline SbSI microrod for high performance photodetector
Authors: Chen Guihuan , Li Wei , Yu Yongqiang , Yang Qing
Published: February 2015

A new rapid and low temperature hydrothermal process has been developed for the synthesis of one-dimensional single-crystalline SbSI microrods with high quality and high photodetecting performance.
Monolithic organic/inorganic ternary nanohybrids toward electron transfer cascade for enhanced visible-light photocatalysis
Authors: Chen Yingzhi , Yue Mengbin , Huang Zheng-Hong , Wang Lu-Ning , Kang Feiyu
Published: February 2015

Monolithic organic/inorganic ternary nanohybrids were facilely prepared toward electron transfer cascade and demonstrated enhanced visible-light photocatalytic activity.
Poly(ether–amide) vs. poly(ether–imide) copolymers for post-combustion membrane separation processes
Authors: Tena Alberto , Shishatskiy Sergey , Filiz Volkan
Published: February 2015

This work is focused on the comparison between the commercial polyamide PEBAX® MH 1657 and a new set of synthesized polyimides with different polyethylene glycol lengths.
Polarization enhanced multi-grain-boundary dendritic micro–nano structure α-Fe for electromagnetic absorption applications: synthesis and characterization
Authors: Yu Zhenxing , Yao Zhongping , Zhang Na , Jiang Zhaohua
Published: February 2015

Multi-grain-boundary hierarchical dendritic micro–nano structure α-Fe was synthesized under the suppression effect of rare earth ions. These abundant grain boundaries contribute to the dramatic enhancement of electromagnetic absorption performance.
Hydrogels assembled from star-shaped polypeptides with a dendrimer as the core
Authors: Shen Yong , Zhang Shusheng , Wan Yaoming , Fu Wenxin , Li Zhibo
Published: February 2015

In this work, we report the facile preparation of novel star-shaped polypeptides, which self-assemble into hydrogels at low critical gelation concentration.
A redox-active gel electrolyte for fiber-shaped supercapacitor with high area specific capacitance
Authors: Pan Shaowu , Deng Jue , Guan Guozhen , Zhang Ye , Chen Peining , Ren Jing , Peng Huisheng
Published: February 2015

A fiber-shaped supercapacitor with a gel electrolyte containing 2-mercaptopyridine shows a high specific capacitance of 507.02 mF cm−2.
One-step facile synthesis of coral-like Zn-doped SnO2and its cataluminescence sensing of 2-butanone
Authors: Weng Yueyang , Zhang Lichun , Zhu Wei , Lv Yi
Published: February 2015

Coral-like Zn-doped SnO2was prepared by a facile one-step hydrothermal method which exhibited excellent sensitivity and stability to 2-butanone.
Superior sodium intercalation of honeycomb-structured hierarchical porous Na3V2(PO4)3/C microballs prepared by a facile one-pot synthesis
Authors: Wang Qiuyue , Zhao Baidan , Zhang Sen , Gao Xiaohui , Deng Chao
Published: February 2015

A honeycomb-type structured Na3V2(PO4)3/C microball with hierarchical pores and 3D conductive network exhibits enhanced sodium intercalation kinetics and superior electrochemical properties.
Approaching the theoretical capacitance of graphene through copper foam integrated three-dimensional graphene networks
Authors: Dey Ramendra Sundar , Hjuler Hans Aage , Chi Qijin
Published: February 2015

A facile and cost-effective approach to fabricate all-in-one supercapacitor electrodes is achieved with copper foam integrated three-dimensional reduced graphene oxide networks. The resulting electrodes display high specific capacitance close to the theoretical value of graphene and good charging–discharging stability.
Composite films as high performance anode materials in thin film lithium-ion batteries
Authors: Lin Jie , Guo Jianlai , Liu Chang , Guo Hang
Published: February 2015

Composite films are fabricated and studied as anode materials for thin film LIBs. The samples can activate Si substrates largely, alleviate the volumetric expansion effectively and exhibit excellent performance.
Single-phase dual emissive Cu:CdS–ZnSe core–shell nanocrystals with “zero self-absorption” and their application in white light emitting diodes
Authors: Zhang Zhuolei , Luan Siyuan , Huang Keke , Zhang Ying , Shi Zhan , Xie Renguo , Yang Wensheng
Published: February 2015

Single phase dual emissive Cu:CdS–ZnSe NCs exhibited flexible two emission bands in the whole visible region. This novel phosphor shows potential for use as color convertors in white light emitting diodes (WLEDs).
Non‐contact blink detection glasses utilising transparent conductive film for binary communication
Authors: Lee Jeong Su , Lim Yong Gyu , Kwon Sung Jun , Park Kwang Suk
Published: February 2015

Amyotrophic lateral sclerosis (ALS) patients can communicate via their residual capacity to voluntarily blink or move their eyes. Conventionally, electrooculography and video cameras have been used to detect blinks. However, these methods have several shortcomings for application to ALS patients. To overcome such weaknesses, a novel blink detection system that utilises transparent conductive films of indium tin oxide (ITO) is proposed. The ITO films, which are attached to the lenses of conventional glasses, detect blinks without obstructing the wearer's field of vision. The system was validated by a binary communication experiment conducted with six subjects. The results show that 100% of the blinks given by subjects correctly indicated their intended answers.
Passive charge redistribution digital‐to‐analogue multiplier
Authors: Bankman D. , Murmann B.
Published: February 2015

A digital‐to‐analogue multiplier based on the principle of passive charge sharing and redistribution is proposed. The circuit generates a voltage proportional to the multiplier, then samples this voltage with a capacitance proportional to the multiplicand by discharging the capacitance associated with its logical inverse. Parasitic capacitances are shown to result in an input‐referred offset with respect to the multiplier. The switching scheme is modified to null the offset. Simulation results are provided to verify the operation of the digital‐to‐analogue multiplier.
Broadband complementary metal‐oxide semiconductor single‐pole‐double‐throw switch with improved power handling capability using dual‐gate metal‐oxide semiconductor field‐effect transistors
Authors: Huang Fan‐Hsiu , Hsin Yue‐Ming
Published: February 2015

A broadband complementary metal‐oxide semiconductor (CMOS) single‐pole‐double‐throw (SPDT) switch based on a travelling‐wave design with using dual‐gate N‐type metal‐oxide semiconductor (NMOS) transistors is implemented in a 0.18 μm CMOS process for millimetre‐wave applications. To further investigate the power handling capability in a dual‐gate metal‐oxide semiconductor field‐effect transistor (MOSFET), this study analyses the mechanism of voltage swing distribution by using the proposed large‐signal cascode model. Considering the parasitic gate‐to‐gate capacitance and the substrate effect, the simulations in this study can accurately predict the small‐signal and power handling performances of the SPDT switch. The switch exhibits a measured 1 dB bandwidth of ∼51 GHz, ranging from 16 to 67 GHz with an insertion loss of 3.6 dB at 30 GHz. The measured isolation is also better than 22 dB. The measured power handling capability can achieve a 1 dB compression point at an input power of 23.8 dBm at 30 GHz with a negative body bias, and the simulation result shows a 1 dB compression point nearly 24 dBm. Based on the proposed model, the large‐signal performances under different body biases can be significantly predicted when including the parasitic gate‐to‐gate capacitance in a dual‐gate MOSFET.