bluuebunny/crossref_metadata_2025 huggingface dataset:
SmartPass: a smarter geolocation‐based authentication scheme
Authors: Shin J. , Kancharlapalli S. , Farcasin M. , Chan‐Tin E.
Published: July 2015

This paper describes an improved authentication method for mobile devices compared with commonly used authentication using characters (text passwords) and Personal Identification Number (PINs). The method introduced in this paper was developed to overcome the difficulty of remembering unfamiliar secrets such as a complex sequence of text characters while maintaining authentication strength. We introduce a new authentication approach, SmartPass, that works for both legacy systems and mobile devices. SmartPass is a web‐based mobile interface that provides a method to use visual map location secrets, which are theorized to be easier to remember and use than passwords and remain difficult for an adversary to guess. We evaluate the security strength of such a map‐based secret compared with traditional text password, PIN, and pattern secrets. This paper also seeks to evaluate user feedback as to the usability and memorability of this authentication method. Copyright © 2015 John Wiley & Sons, Ltd.
Theoretical Evaluation on Merits of the Processes of Gas‐Based Shaft Furnace with Top Gas Recycling
Authors: Liu Bingnan , Li Qiang , Zou Zongshu , Yu Aibing
Published: July 2015

To achieve the solution to inadequate utilization of chemical potential of the reducing gas in gas‐based shaft furnace, the different innovative processes with top gas recycling and oxygen blowing are established and the energy efficiency and CO2 emission of each process are numerically analyzed through a validated process model based on the conservations of mass and heat. The results show that in the proposed TGR1, TGR2, and TGR3 cases, the demand of the fresh hot reducing gas decreases by 63.77, 57.13, and 55.85%, respectively, meanwhile the requirement of the corresponding sensible heat shows the same tendency. However, the consumption of energy in each process increases by 14.04, 17.17, and 24.65%, respectively, because of the additional cost of the gas reforming and preheating. The emission of CO2 for TGR1 decreases by 15.35% while the one for TGR2 and TGR3 increases by 0.16 and 3.15%, respectively. Therefore, the proposed top gas recycling technology for the gas‐based shaft furnace process cannot lower the consumption of energy from the whole process view. In the case with oxygen blowing of 4.49 Nm3 tDRI−1, the gas consumption decreases by 8.54% and the reduction potential of top gas decreases by 13.74%. Additionally, oxygen blowing process can essentially reduce both the CO2 emission and energy consumption.
Effect of low temperature on the retrogradation behavior of rice gels with different milling degrees
Authors: Xia Wen , Liu Chengmei , Luo Shunjing , Xu Xingfeng , Fu Guiming
Published: July 2015

The retrogradation properties of rice gels with different milling degrees (0, 3, 6, and 9%) stored at 4°C and −20°C were investigated. Results showed that rice gels with the same degrees of milling (DOM) stored at 4°C retrograde faster than those stored at −20°C. Moreover, higher milling degree leads to a faster retrogradation in the same temperature. Texture profile analysis demonstrated that samples showed a lower hardness but higher adhesiveness during storage at −20°C. Differential scanning calorimetry (DSC) revealed that the higher the milling degree, the higher retrogradation index (ΔHr/ΔHg) obtained at 4°C or −20°C. X‐Ray diffraction (XRD) analysis indicated that samples stored at −20°C had a lower degree of crystallinity compared with those stored at 4°C, which was also confirmed by Fourier Transform infrared spectroscopy (FTIR) analysis. Scanning electron microscopy (SEM) analysis showed that samples stored at −20°C presented a more shrinkable appearance with more pores. The results are expected to provide some theoretical guidance for retarding the retrogradation of rice in processing and preservation industry.
The Bariatric Patient: An Overview of Perioperative Care
Authors: Fencl Jennifer L. , Walsh Angela , Vocke Dawn
Published: July 2015

Obesity (ie, a body mass index of ≥30 kg/m2) is increasing in the United States. As a result, more overweight individuals are being surgically treated for weight loss, thus making it imperative for perioperative RNs to understand obesity's effects on patients’ health, its contribution to significant comorbidities (eg, diabetes, cardiovascular disease, hypertension, sleep apnea, musculoskeletal issues, stroke), the perioperative care requirements (eg, specialized instruments and equipment, positioning and lifting aids), and unique needs of these patients (eg, diet, counseling). It is vital that the perioperative nurse accurately assesses the patient undergoing bariatric surgery to provide safe and appropriate nursing interventions during the perioperative continuum of care.
Review of Nutritional Guidelines for Patients Undergoing Bariatric Surgery
Authors: Leahy Cheri Rebecca , Luning Alyssa
Published: July 2015

Health care providers often supply patients who are undergoing bariatric surgery with varying and sometimes conflicting information regarding nutrition before and after surgery. Nurses and other care providers can benefit from applying current nutritional guidelines to increase patients’ understanding, compliance, nutrition, hydration, protein needs, and satisfaction. This article summarizes basic recommendations to help health care providers understand the patients’ nutritional requirements and diet recommendations from two weeks before bariatric surgery to four to six weeks after surgery.
Neuronal death after perinatal cerebral hypoxia‐ischemia: Focus on autophagy—mediated cell death
Authors: Descloux C. , Ginet V. , Clarke P.G.H. , Puyal J. , Truttmann A.C.
Published: July 2015

Neonatal hypoxic‐ischemic encephalopathy is a critical cerebral event occurring around birth with high mortality and neurological morbidity associated with long‐term invalidating sequelae. In view of the great clinical importance of this condition and the lack of very efficacious neuroprotective strategies, it is urgent to better understand the different cell death mechanisms involved with the ultimate aim of developing new therapeutic approaches. The morphological features of three different cell death types can be observed in models of perinatal cerebral hypoxia‐ischemia: necrotic, apoptotic and autophagic cell death. They may be combined in the same dying neuron. In the present review, we discuss the different cell death mechanisms involved in neonatal cerebral hypoxia‐ischemia with a special focus on how autophagy may be involved in neuronal death, based: (1) on experimental models of perinatal hypoxia‐ischemia and stroke, and (2) on the brains of human neonates who suffered from neonatal hypoxia‐ischemia.
Amazon Mechanical Turk for Industrial and Organizational Psychology: Advantages, Challenges, and Practical Recommendations
Authors: Woo Sang Eun , Keith Melissa , Thornton Meghan A.
Published: July 2015

We are in almost full agreement with Landers and Behrend's (2015) thoughtful and balanced critiques of various convenience sampling strategies focusing on the four most frequently used data sources in our field. In this commentary, we expand on Landers and Behrend's discussions specifically around Mechanical Turk (MTurk) by providing further supporting voice and/or clarity to the four potential concerns and relative advantages associated with MTurk. We also raise a few additional concerns and challenges to which the current literature does not yet offer definitive answers. We conclude with some practical guidelines summarizing the relative advantages and unique challenges of using MTurk.
Difference in Response Effort Across Sample Types: Perception or Reality?
Authors: Ran Shan , Liu Mengqiao , Marchiondo Lisa A. , Huang Jason L.
Published: July 2015

Landers and Behrend (2015) question organizational researchers’ stubborn reliance on sample source to infer the validity of research findings, and they challenge the arbitrary distinctions researchers often make between sample sources. Unconditional favoritism toward particular sampling strategies (e.g., organizational samples) can restrict choices in methodology, which in turn may limit opportunities to answer certain research questions. Landers and Behrend (2015) contend that no sampling strategy is inherently superior (or inferior), and therefore, all types of samples warrant careful consideration before any validity-related conclusions can be made. Despite sound arguments, the focal article focuses its consideration on external validity and deemphasizes the potential influence of sample source on internal validity. Agreeing with the position that no samples are the “gold standard” in organizational research and practice, we focus on insufficient effort responding (IER; Huang, Curran, Keeney, Poposki, & DeShon, 2012) as a threat to internal validity across sample sources.
A Convenient Solution: Using MTurk To Sample From Hard-To-Reach Populations
Authors: Smith Nicholas A. , Sabat Isaac E. , Martinez Larry R. , Weaver Kayla , Xu Shi
Published: July 2015

We agree with Landers and Behrend's (2015) proposition that Amazon's Mechanical Turk (MTurk) may provide great opportunities for organizational research samples. However, some groups are characteristically difficult to recruit because they are stigmatized or socially disenfranchised (Birman, 2005; Miller, Forte, Wilson, & Greene, 2006; Sullivan & Cain, 2004; see Campbell, Adams, & Patterson, 2008, for a review). These groups may include individuals who have not previously been the focus of much organizational research, such as those of low socioeconomic status; individuals with disabilities; lesbian, gay, bisexual, or transgender (LGBT) individuals; or victims of workplace harassment. As Landers and Behrend (2015) point out, there is an overrepresentation of research using “Western, educated, industrialized, rich, and democratic” participants. It is important to extend research beyond these samples to examine workplace phenomena that are specific to special populations. We contribute to this argument by noting the particular usefulness that MTurk can provide for sampling from hard-to-reach populations, which we characterize as groups that are in the numerical minority in terms of nationwide representation. To clarify, we focus our discussion on populations that are traditionally hard to reach in the context of contemporary organizational research within the United States.
Facilitating sustainable professional part-time work: A question of design?
Authors: Smith Natalie , McDonald Paula
Published: July 2015

Despite significant socio-demographic and economic shifts in the contours of work over the past 40 years, there has been surprisingly little change in the way work is designed. Current understandings of the content and structure of jobs are predominantly underpinned by early 20th century theories derived from the manufacturing industry where employees worked independently of each other in stand-alone organisations. It is only in the last 10 years that elaborations and extensions to job/work design theory have been posed, which accommodate some of the fundamental shifts in contemporary work settings, yet these extended frameworks have received little empirical attention. Utilising contemporary features of work design and a sample of professional service workers, the purpose of this study is to examine to what extent and how part-time roles are designed relative to equivalent full-time roles. The findings contribute to efforts to design effective part-time roles that balance organisational and individual objectives.
Empirical Research on Corporate Governance in China: A Review and New Directions for the Future
Authors: Shen Wei , Zhou Qiong , Lau Chung-Ming
Published: July 2015

The ownership structure of Chinese firms has experienced significant changes over the last three decades, including the development of a fast growing stock market through which a large number of domestic firms have become publicly traded corporations. These changes have drawn increasing attention from researchers of corporate governance. In this article, we review the empirical research on corporate governance in China, with a focus on the internal and external governance mechanisms that have been investigated and the findings about the effectiveness of these mechanisms. On the basis of our review of 132 studies, we summarize the major findings and discuss the limitation of agency theory in understanding the governance issue in Chinese firms. We offer several ideas (e.g., the importance of the social context, new conceptualization of governance, different outcomes of governance, and data/method issues) for a new agenda to guide future research in the corporate governance of firms operating in the Chinese and other emerging economy contexts.
KHAIRIEH KASMIEH (1936–2014)
Authors: Tamari Steve
Published: July 2015

The international community of scholars of modern Arab and Palestinian history lost one of its most prominent and beloved members with the passing of Khairieh Kasmieh on 5 August 2014 in Damascus, Syria.
Effects of arbuscular mycorrhizal fungi onCapsicumspp.
Authors: PEREIRA J. A. P. , VIEIRA I. J. C. , FREITAS M. S. M. , PRINS C. L. , MARTINS M. A. , RODRIGUES R.
Published: July 2015

The benefits of mycorrhizal inoculation on growth, yield and nutrition of plants are well documented. However, mycorrhiza use in pepper and sweet pepper crops (Capsicumspp.) is still rarely exploited compared to other crops of economic importance. The current paper reviews the main aspects of the association between arbuscular mycorrhizal (AM) fungi and plants of pepper and sweet pepper. It includes topics about the effects of AM fungi on nutrition, growth and yield inCapsicumspp., paying particular attention to AM fungi–pathogen interactions, responses to some environmental stresses, as well as biochemical and physiological aspects of AM fungi–plant interaction inCapsicum annuumL.
Effect of the laser intensity profile on the shock non-uniformity in a directly driven spherical target
Authors: Temporal Mauro , Canaud Benoit , Garbett Warren J. , Ramis Rafael
Published: July 2015

An axially symmetric laser beam configuration irradiating a spherical capsule has been considered in the context of inertial confinement fusion (ICF). The laser beams are located at co-latitudes 49° and 131° and mimic the quad positions in the second cone of the Laser Mégajoule Facility. The capsule is directly irradiated by the laser beams whose energy deposition generates a nearly spherical shock wave. Two-dimensional hydrodynamic numerical simulations have been performed to analyse the non-uniformity of the shock wavefront launched inward throughout the target. Different laser intensity profiles, calculated by the illumination model, have been tested. The performance, in terms of shock non-uniformity, has been compared, and it is found that with an appropriate choice of the laser intensity profile it is possible to control the shock non-uniformity at early times.
Geographic distribution of Astroides calycularis (Scleractinia: Dendrophylliidae) as a baseline to assess future human impacts on the Southern Iberian Peninsula
Authors: Terrón-Sigler Alejandro , León-Muez David , Peñalver-Duque Patricio , Gálvez-César Rafael , Espinosa Torre Free
Published: July 2015

Human activities have increasingly affected biodiversity in the Mediterranean Sea. Data on the distribution and abundance of species allows researchers to assess the possible degradation of wild populations. These data could act as a baseline to assess the magnitude of the effects of human activities on a bioindicator species. The distribution and relative abundance of the south-western populations of the endemic Astroides calycularis in the South Iberian Peninsula were studied to establish a baseline for future studies. The rocky shoreline was studied at a depth range of 0–12 m, including more than 650 km of Spain's Andalusian coastline. The species was present in 135 of the 585 dive points sampled. ANOVA analysis showed differences in depth in the four provinces studied, and there was no interaction between the two factors. As human activities on the Mediterranean coast are reducing the A. calycularis populations, a baseline on marine populations is greatly recommended for monitoring, assessment, and management studies, especially for endangered or bioindicator species. This baseline could be useful as a reference tool to assess the effects of human activities on marine biodiversity, including global change.
Limited impact of irrigation on the phenology ofBrachychiton megaphyllus: a deciduous shrub that flowers while leafless during the tropical dry season
Authors: Bate Patricia J. , Franklin Donald C.
Published: July 2015

A suite of woody plants inhabiting the seasonally dry tropics flower while leafless during the dry season, raising intriguing questions about the role of moisture limitation in shaping their phenology.Brachychiton megaphyllusis one such species, a shrub of open forests and savannas in northern Australia. We documented leaf and reproductive phenology of 14 shrubs, and irrigated a further 15, to determine if soil moisture affected leafiness and reproductive activity.Brachychiton megaphyllusshowed first flower buds shortly after the cessation of wet-season rains, and budded and flowered throughout the dry season. In some plants, leaf flush occurred prior to the first rains. Rates of fruit set and maturity were very low. Irrigation did not significantly influence leaf shoot or subsequent canopy development. Contrary to expectation, irrigation decreased the production of buds and flowers though it had no impact on the production of fruit, a response for which we suggest a number of hypotheses. Phenological responses to irrigation may have been limited becauseB. megaphyllusresponds primarily to cues other than soil moisture and is buffered against seasonal drought by a large tap root. This suggests mechanisms by which flowering while leafless may occur in a range of species.
End-of-Life Co-residence of Older Parents and Their Sons in Rural China
Authors: Cong Zhen , Silverstein Merril
Published: July 2015

Cette étude a examiné comment les échanges intergénérationnels avec des fils et des filles prédit la probabilité des parents âgés vivant ensemble avec un fils avant de mourir, dans une zone rurale de la province de l'Anhui de la Chine. Notre enquête puise des théories de la co-résidence dépendante, la modernisation et l'échange social; il a conceptualisé la co-résidence comme ayant une importance pratique et symbolique dans la culture chinoise rurale. L'échantillon comprenait 470 parents âgés qui ont été rapportés défunts au cours de la période 2001-2009, et leurs informateurs posthumes. Nous avons utilisé la régression logistique pour évaluer le soutien et la cohésion intergénérationnel entre les générations comme facteurs prédictifs de la co-résidence avec un fils juste avant la mort. Les parents âgés qui ont fourni soutien matériel à, et ont reçu soutien matériel de leur fils, et avait de meilleures relations affectives avec leurs fils, étaient plus susceptibles que leurs homologues de vivre avec un fils à la fin de la vie. Vivre avec les fils démontre la piété filiale pour les parents âgés à la fin de la vie, mais sa réalisation est sensible aux échanges entre les générations.
Anticipation processes in L2 speech comprehension: Evidence from ERPs and lexical recognition task
Authors: FOUCART ALICE , RUIZ-TADA ELISA , COSTA ALBERT
Published: July 2015

The present study investigated anticipation processes in L2 speech comprehension. French–Spanish late bilinguals were presented with high-constrained Spanish sentences. ERPs were time-locked on the article preceding the critical noun, which was muted to avoid overlapping effects. Articles that mis-matched the gender of the expected nouns triggered a negativity. A subsequent lexical recognition task revealed that words expected from the context were (falsely) recognised significantly more often than unexpected words, even though all were muted. Overall, the results suggest that anticipation processes are at play during L2 speech processing, and allow creating a memory trace of a word prior to presentation.
Knockout of Silent Information Regulator 2 (SIRT2) Preserves Neurological Function after Experimental Stroke in Mice
Authors: Krey Lea , Lühder Fred , Kusch Kathrin , Czech-Zechmeister Bozena , Könnecke Birte , Outeiro Tiago Fleming , Trendelenburg George
Published: July 2015

Sirtuin-2 (Sirt2) is a member of the NAD+-dependent protein deacetylase family. Various members of the sirtuin class have been found to be involved in processes related to longevity, regulation of inflammation, and neuroprotection. Induction of Sirt2 mRNA was found in the whole hemisphere after experimental stroke in a recent screening approach. Moreover, Sirt2 protein is highly expressed in myelin-rich brain regions after stroke. To examine the effects of Sirt2 on ischemic stroke, we induced transient focal cerebral ischemia in adult male Sirt2-knockout and wild-type mice. Two stroke models with different occlusion times were applied: a severe ischemia (45 minutes of middle cerebral artery occlusion (MCAO)) and a mild one (15 minutes of MCAO), which was used to focus on subcortical infarcts. Neurological deficit was determined at 48 hours after 45 minutes of MCAO, and up to 7 days after induction of 15 minutes of cerebral ischemia. In contrast to recent data on Sirt1, Sirt2−/− mice showed less neurological deficits in both models of experimental stroke, with the strongest manifestation after 48 hours of reperfusion. However, we did not observe a significant difference of stroke volumes or inflammatory cell count between Sirt2-deficient and wild-type mice. Thus we postulate that Sirt2 mediates myelin-dependent neuronal dysfunction during the early phase after ischemic stroke.
Observation of optical solitons in PT-symmetric lattices
Authors: Wimmer Martin , Regensburger Alois , Miri Mohammad-Ali , Bersch Christoph , Christodoulides Demetrios N. , Peschel Ulf
Published: July 2015

Controlling light transport in nonlinear active environments is a topic of considerable interest in the field of optics. In such complex arrangements, of particular importance is to devise strategies to subdue chaotic behaviour even in the presence of gain/loss and nonlinearity, which often assume adversarial roles. Quite recently, notions of parity-time (PT) symmetry have been suggested in photonic settings as a means to enforce stable energy flow in platforms that simultaneously employ both amplification and attenuation. Here we report the experimental observation of optical solitons in PT-symmetric lattices. Unlike other non-conservative nonlinear arrangements where self-trapped states appear as fixed points in the parameter space of the governing equations, discrete PT solitons form a continuous parametric family of solutions. The possibility of synthesizing PT-symmetric saturable absorbers, where a nonlinear wave finds a lossless path through an otherwise absorptive system is also demonstrated.
Large-scale controlled fabrication of highly roughened flower-like silver nanostructures in liquid crystalline phase
Authors: Yang Chengliang , Xiang Xiangjun , Zhang Ying , Peng Zenghui , Cao Zhaoliang , Wang Junlin , Xuan Li
Published: July 2015

Large-scale controllable fabrication of highly roughened flower-like silver nanostructures is demonstrated experimentally via electrodeposition in the liquid crystalline phase. Different sizes of silver flowers are fabricated by adjusting the deposition time and the concentration of the silver nitrate solution. The density of the silver flowers in the sample is also controllable in this work. The flower-like silver nanostructures can serve as effective surface-enhanced Raman scattering and surface-enhanced fluorescence substrates because of their local surface plasmon resonance and they may have applications in photoluminescence and catalysis. This liquid crystalline phase is used as a soft template for fabricating flower-like silver nanostructures for the first time and this approach is suitable for large-scale uniform fabrication up to several centimetres.
Hydroxyproline Ring Pucker Causes Frustration of Helix Parameters in the Collagen Triple Helix
Authors: Ying Chow W. , Bihan Dominique , Forman Chris J. , Slatter David A. , Reid David G. , Wales David J. , Farndale Richard W. , Duer Melinda J.
Published: July 2015

Collagens, the most abundant proteins in mammals, are defined by their triple-helical structures and distinctive Gly-Xaa-Yaa repeating sequence, where Xaa is often proline and Yaa, hydroxyproline (Hyp/O). It is known that hydroxyproline in the Yaa position stabilises the triple helix and that lack of proline hydroxylation in vivo leads to dysfunctional collagen extracellular matrix assembly, due to a range of factors such as a change in hydration properties. In addition, we note that in model peptides, when Yaa is unmodified proline, the Xaa proline has a strong propensity to adopt an endo ring conformation, whilst when Yaa is hydroxyproline, the Xaa proline adopts a range of endo and exo conformations. Here we use a combination of solid-state NMR spectroscopy and potential energy landscape modelling of synthetic triple-helical collagen peptides to understand this effect. We show that hydroxylation of the Yaa proline causes the Xaa proline ring conformation to become metastable, which in turn confers flexibility on the triple helix.
DYVIPAC: an integrated analysis and visualisation framework to probe multi-dimensional biological networks
Authors: Nguyen Lan K. , Degasperi Andrea , Cotter Philip , Kholodenko Boris N.
Published: July 2015

Biochemical networks are dynamic and multi-dimensional systems, consisting of tens or hundreds of molecular components. Diseases such as cancer commonly arise due to changes in the dynamics of signalling and gene regulatory networks caused by genetic alternations. Elucidating the network dynamics in health and disease is crucial to better understand the disease mechanisms and derive effective therapeutic strategies. However, current approaches to analyse and visualise systems dynamics can often provide only low-dimensional projections of the network dynamics, which often does not present the multi-dimensional picture of the system behaviour. More efficient and reliable methods for multi-dimensional systems analysis and visualisation are thus required. To address this issue, we here present an integrated analysis and visualisation framework for high-dimensional network behaviour which exploits the advantages provided by parallel coordinates graphs. We demonstrate the applicability of the framework, named “Dynamics Visualisation based on Parallel Coordinates” (DYVIPAC), to a variety of signalling networks ranging in topological wirings and dynamic properties. The framework was proved useful in acquiring an integrated understanding of systems behaviour.
Optical nanoscopy of transient states in condensed matter
Authors: Kuschewski F. , Kehr S.C. , Green B. , Bauer Ch. , Gensch M. , Eng L.M.
Published: July 2015

Recently, the fundamental and nanoscale understanding of complex phenomena in materials research and the life sciences, witnessed considerable progress. However, elucidating the underlying mechanisms, governed by entangled degrees of freedom such as lattice, spin, orbit and charge for solids or conformation, electric potentials and ligands for proteins, has remained challenging. Techniques that allow for distinguishing between different contributions to these processes are hence urgently required. In this paper we demonstrate the application of scattering-type scanning near-field optical microscopy (s-SNOM) as a novel type of nano-probe for tracking transient states of matter. We introduce a sideband-demodulation technique that allows for probing exclusively the stimuli-induced change of near-field optical properties. We exemplify this development by inspecting the decay of an electron-hole plasma generated in SiGe thin films through near-infrared laser pulses. Our approach can universally be applied to optically track ultrafast/-slow processes over the whole spectral range from UV to THz frequencies.
Naked-eye nanobiosensor for therapeutic drug monitoring of methotrexate
Authors: Yockell-Lelièvre H. , Bukar N. , Toulouse J. L. , Pelletier J. N. , Masson J.-F.
Published: July 2015

Sensing of methotrexate at clinically-relevant concentrations was achieved with a plasmon-coupling assay.
In-line single-phase extraction for direct determination of total iron in oils using CdTe quantum dots and a flow-batch system
Authors: Lima Marcelo B. , Andrade Stéfani Iury E. , Barreto Inakã S. , Araújo Mário César U.
Published: July 2015

In this work, a novel method for direct determination of total iron in viscous samples is presented.
A survey of state-of-the-art surface chemistries to minimize fouling from human and animal biofluids
Authors: Blaszykowski Christophe , Sheikh Sonia , Thompson Michael
Published: July 2015

Fouling of artificial surfaces by biofluids is a plague Biotechnology deeply suffers from. Herein, we inventory the state-of-the-art surface chemistries developed to minimize this effect from both human and animal biosamples.
Lighting up micromotors with quantum dots for smart chemical sensing
Authors: Jurado-Sánchez B. , Escarpa A. , Wang J.
Published: July 2015

A novel “on-the-fly” chemical detection strategy based on coupling of the optical properties of QDs and the autonomous movement of micromachines is described.
Stereoselective synthesis of vinylphosphonates and phosphine oxides via silver-catalyzed phosphorylation of styrenes
Authors: Gui Qingwen , Hu Liang , Chen Xiang , Liu Jidan , Tan Ze
Published: July 2015

An efficient and stereoselective synthesis of vinylphosphonates and phosphine oxides was developed starting from styrenes using AgNO3as the catalyst and K2S2O8as the oxidant. Various vinyl-phosphonates and phosphine oxides were synthesized in good yields with excellent regioselectivity.
First acidic macro-mesocellular aluminosilicate monolithic foams “SiAl(HIPE)” and their catalytic properties
Authors: Debecker Damien P. , Boissière Cédric , Laurent Guillaume , Huet Stéphanie , Eliaers Philippe , Sanchez Clément , Backov Rénal
Published: July 2015

A new type of macrocellular and mesoporous acidic aluminosilicate monolithic foam obtained by a templated alkaline sol–gel route exhibits high dehydration activity.
Diffusion in Li2O studied by non-equilibrium molecular dynamics for 873 < T/K < 1603
Authors: Mulliner Alexander D. , Aeberhard Philippe C. , Battle Peter D. , David William I. F. , Refson Keith
Published: July 2015

Non-equilibrium molecular dynamics has identified the different diffusion mechanisms that operate in Li2O above and below the superionic transition temperature.
DFT studies of the bonding mechanism of 8-hydroxyquinoline and derivatives on the (111) aluminum surface
Authors: Chiter Fatah , Lacaze-Dufaure Corinne , Tang Hao , Pébère Nadine
Published: July 2015

The 8-hydroxyquinoline (8-HQ) molecule is an efficient corrosion inhibitor for aluminum and is also used in organic electronic devices.
Photovoltaic performance and the energy landscape of CH3NH3PbI3
Authors: Zhou Yecheng , Huang Fuzhi , Cheng Yi-Bing , Gray-Weale Angus
Published: July 2015

The methylammonium ions in CH3NH3PbI3 prefer to rotate collectively, and to be parallel to their neighbours or to be polarised by working field. The polarised charges in CH3NH3PbI3 screens the hindering electric field, improves the power conversion characteristics of CH3NH3PbI3 photovoltaic cells. This polarised charges are also in significant part responsible for the normal and anomalous hysteresis.
Group 4 metal complexes of Trost's semi-crown ligand: synthesis, structural characterization and studies on the ring-opening polymerization of lactides and ε-caprolactone
Authors: Rajashekhar Bijja , Roymuhury Sagnik K. , Chakraborty Debashis , Ramkumar Venkatachalam
Published: July 2015

The synthesis of titanium(iv), zirconium(iv) and hafnium(iv) complexes of Trost's semi-crown ligand is described.
Application of the π-accepting ability parameter of N-heterocyclic carbene ligands in iridium complexes for signal amplification by reversible exchange (SABRE)
Authors: van Weerdenburg Bram J. A. , Eshuis Nan , Tessari Marco , Rutjes Floris P. J. T. , Feiters Martin C.
Published: July 2015

Is the observed reactivity in SABRE catalysts correlated to the π-accepting ability of NHC ligands ?
A techno-economic model of a solid oxide electrolysis system
Authors: Milobar Daniel G. , Hartvigsen Joseph J. , Elangovan S.
Published: July 2015

Solid oxide cells can play a vital role in addressing energy and environmental issues. In fuel cell mode they are capable of producing electric energy at high efficiency using hydrocarbon fuels and in the electrolysis mode can produce hydrogen from steam or synthesis gas from a mixture of steam and carbon dioxide. The solid oxide electrolysis cells (SOECs) can operate at a wide range of conditions. A capable means by which to select operating conditions in the application of solid oxide electrolyzers is a necessity for successful commercial operation. Power and efficiency can be determined over a wide range of operating conditions by applying fundamental electrochemical principles to a SOEC system. Operating conditions may be selected based on power requirements or with efficiency as a priority. Operating cost for electricity which is a function of both power and efficiency can also be used to determine optimal operating conditions. Performance maps based on closed form isothermal parametric models for both hydrogen and natural gas fueled SOFC stacks have been demonstrated previously. This approach applied to a SOEC stack is shown. This model was applied to generate performance maps for a solid oxide cell stack operated in the electrolysis mode. The functional form of the model and the boundaries of the operating envelope provide useful insight into the SOEC operating characteristics and a simple means of selecting conditions for electrolysis operation.
Caffeine dimerization: effects of sugar, salts, and water structure
Authors: Shimizu Seishi
Published: July 2015

How sugar and salts affect the aggregation of caffeine molecules in water has been clarified from statistical thermodynamics.
SAW-based fluid atomization using mass-producible chip devices
Authors: Winkler A. , Harazim S. M. , Menzel S. B. , Schmidt H.
Published: July 2015

A SAW-based fluid atomization device suitable for economic mass-scale production using a fluid supply via on-chip embedded SU-8 microchannels.
Characterization of PtIV-containing polyoxometalates by high-resolution solid-state195Pt and51V NMR spectroscopy
Authors: Dugar Sneha , Izarova Natalya V. , Mal Sib Sankar , Fu Riqiang , Joo Hea-Chung , Lee Uk , Dalal Naresh S. , Pope Michael T. , Jameson Geoffrey B. , Kortz Ulrich
Published: July 2015

High-resolution solid-state195Pt MAS NMR spectroscopy is a powerful technique for the characterization of PtIV-containing polyoxometalates, as is demonstrated for several examples.
Natural products as biofuels and bio-based chemicals: fatty acids and isoprenoids
Authors: Beller Harry R. , Lee Taek Soon , Katz Leonard
Published: July 2015

We review recent progress in the development of fatty acid-derived and isoprenoid natural products for use as renewable biofuels and bio-based chemicals.
CO2 controlled flocculation of microalgae using pH responsive cellulose nanocrystals
Authors: Eyley Samuel , Vandamme Dries , Lama Sanjaya , Van den Mooter Guy , Muylaert Koenraad , Thielemans Wim
Published: July 2015

Cellulose nanocrystals were grafted with imidazole functionalities (DS 0.06) producing a CO2-responsive flocculant for microalgal biomass. The resulting nanocrystals induced flocculation of Chlorella vulgaris with up to 90% efficiency.
A fluorescent turn-on H2S-responsive probe: design, synthesis and application
Authors: Zhang Yufeng , Chen Haiyan , Chen Dan , Wu Di , Chen Xiaoqiang , Liu Sheng Hua , Yin Jun
Published: July 2015

Hydrogen sulfide (H2S) is considered as the third signaling moleculein vivoand it plays an important role in various physiological processes and pathological processesin vivo, such as vasodilation, apoptosis, neurotransmission, ischemia/reperfusion-induced injury, insulin secretion and inflammation.
Nanoparticles' interference in the evaluation of in vitro toxicity of silver nanoparticles
Authors: Liang Ling , Cui Menghua , Zhang Mei , Zheng Peiwen , Deng Zhaoyi , Gao Shanshan , Wang Xinsheng , Zhang Xiaoyun , Wang Chen , Liu Ying , Xie Liming
Published: July 2015

We have investigated the interference of silver nanoparticles on the toxicity evaluations. For accurate toxicity evaluation of nanoparticles, it would be very necessary to limit particle concentrations or choose other approaches free from the interference.
Structure of ionic liquids with amino acid anions via neutron diffraction
Authors: Norman S. E. , Turner A. H. , Youngs T. G. A.
Published: July 2015

Total neutron scattering studies on amino acid-based ionic liquids reveal significant directional interactions between anions, especially for serinate-derived ions.
Green synthesis of AgI nanoparticle-functionalized reduced graphene oxide aerogels with enhanced catalytic performance and facile recycling
Authors: Reddy D. Amaranatha , Choi Jiha , Lee Seunghee , Ma Rory , Kim Tae Kyu
Published: July 2015

This work demonstrates the facile green synthesis of AgI-reduced graphene oxide aerogels with superior photocatalytic performance and remarkable durability.
Electro-catalytic degradation pathway and mechanism of acetamiprid using an Er doped Ti/SnO2–Sb electrode
Authors: Li Shanping , Li Yahui , Zeng Xueyuan , Wang Wenran , Shi Ruoxin , Ma Lina
Published: July 2015

Schematic of the degradation pathway of acetamiprid, which shows the molecular structures of the intermediate species.
High quality sub-10 nm graphene nanoribbons by on-chip PS-b-PDMS block copolymer lithography
Authors: Rasappa Sozaraj , Caridad José M. , Schulte Lars , Cagliani Alberto , Borah Dipu , Morris Michael A. , Bøggild Peter , Ndoni Sokol
Published: July 2015

“High quality sub-10 nm graphene nanoribbons by on-chip PS-b-PDMS block copolymer lithography”, SEM image of sub-10 nm graphene nanoribbons fabricated using a brushless lamellar PS-b-PDMS (5k–5.5k) block copolymer and its Raman spectra.
Functional polymer particles via thiol–ene and thiol–yne suspension “click” polymerization
Authors: Durham Olivia Z. , Norton Hannah R. , Shipp Devon A.
Published: July 2015

Highly functionalized, water-borne, micron-sized polymer particles were synthesized using thermally or photochemically initiated thiol–ene and thiol–yne “click” suspension polymerizations.
A naked-eye pH-modulated ratiometric photoluminescence sensor based on dual-emission quantum dot@silica nanoparticles for Zn2+ and IO3−
Authors: Li Yang , Ma Qiang , Li Guodong , Su Xingguang
Published: July 2015

A sensitive and selective ratiometric photoluminescence (PL) sensor comprised of dual-emission quantum dots (QDs)@silica nanoparticles has been developed for the detection of Zn2+ and IO3−.
Efficient lithium storage from modified vertically aligned carbon nanotubes with open-ends
Authors: Jung Hyun Young , Hong Sanghyun , Yu Ami , Jung Sung Mi , Jeoung Sun Kyoung , Jung Yung Joon
Published: July 2015

Herein, we report the use of vertically aligned carbon nanotubes (VA-CNTs) with controlled structure and morphology as an anode material for lithium-ion batteries.
Chemically directing d-block heterometallics to nanocrystal surfaces as molecular beacons of surface structure
Authors: Rosen Evelyn L. , Gilmore Keith , Sawvel April M. , Hammack Aaron T. , Doris Sean E. , Aloni Shaul , Altoe Virginia , Nordlund Dennis , Weng Tsu-Chien , Sokaras Dimosthenis , Cohen Bruce E. , Urban Jeffrey J. , Ogletree D. Frank , Milliron Delia J. , Prendergast David , Helms Brett A.
Published: July 2015

d-block heterometals reveal local surface structure.
New chemosynthetic route to linear ε-poly-lysine
Authors: Tao Youhua , Chen Xiaoyu , Jia Fan , Wang Shixue , Xiao Chunsheng , Cui Fengchao , Li Yunqi , Bian Zheng , Chen Xuesi , Wang Xianhong
Published: July 2015

ε-poly-lysine (ε-PL) is a naturally-occurring homopolymer produced by the fermentation process. Here, we report a new chemical strategy based on ring opening polymerization to obtain ε-PL from lysine.
[001] preferentially-oriented 2D tungsten disulfide nanosheets as anode materials for superior lithium storage
Authors: Yang Wanfeng , Wang Jiawei , Si Conghui , Peng Zhangquan , Frenzel Jan , Eggeler Gunther , Zhang Zhonghua
Published: July 2015

Two-dimensional WS2 nanosheets with preferential [001] orientation and perfect single crystalline structures exhibit superior lithium storage performance.
Fabrication of core–shell porous nanocubic Mn2O3@TiO2as a high-performance anode for lithium ion batteries
Authors: Chen X. Q. , Lin H. B. , Zheng X. W. , Cai X. , Xia P. , Zhu Y. M. , Li X. P. , Li W. S.
Published: July 2015

Core–shell porous nanocubic Mn2O3@TiO2was synthesized and applied as an anode for lithium-ion batteries, exhibiting excellent cyclic stability and rate capability.
Enhanced thermoelectric power factor of Re-substituted higher manganese silicides with small islands of MnSi secondary phase
Authors: Chen Xi , Zhou Jianshi , Goodenough John B. , Shi Li
Published: July 2015

A rhenium-substituted HMS sample with small islands of MnSi secondary phase has been prepared by the quenching method. Such unique microstructure leads to an enhanced thermoelectric power factor (PF) as compared to the samples prepared by other methods.
The acute hepatotoxicity of tacrine explained by1H NMR based metabolomic profiling
Authors: Lou Yan-Hong , Wang Jun-Song , Dong Ge , Guo Ping-Ping , Wei Dan-Dan , Xie Sai-Sai , Yang Ming-Hua , Kong Ling-Yi
Published: July 2015

NMR based metabolomics approach was applied to study the mechanism of tacrine-induced acute hepatotoxicity and had found significant disturbances.
An experimental and theoretical assessment of quantum dot cytotoxicity
Authors: Gladkovskaya Olga , Greaney Paul , Gun'ko Yurii K. , O'Connor Gerard M. , Meere Martin , Rochev Yury
Published: July 2015

Scheme represents the model approach. After exposure to quantum dots initial cell population may follow various pathways which depend on intracellular concentration of quantum dots.
The class II transactivator (CIITA) is regulated by post-translational modification cross-talk between ERK1/2 phosphorylation, mono-ubiquitination and Lys63 ubiquitination
Authors: Morgan Julie E. , Shanderson Ronald L. , Boyd Nathaniel H. , Cacan Ercan , Greer Susanna F.
Published: July 2015

The class II transactivator (CIITA) is known as the master regulator for the major histocompatibility class II (MHC II) molecules. CIITA is dynamically regulated through a series of intricate post-translational modifications (PTMs). CIITA's role is to initiate transcription of MHC II genes, which are responsible for presenting extracellular antigen to CD4+ T-cells. In the present study, we identified extracellular signal-regulated kinase (ERK)1/2 as the kinase responsible for phosphorylating the regulatory site, Ser280, which leads to increased levels of mono-ubiquitination and an overall increase in MHC II activity. Further, we identify that CIITA is also modified by Lys63-linked ubiquitination. Lys63 ubiquitinated CIITA is concentrated in the cytoplasm and following activation of ERK1/2, CIITA phosphorylation occurs and Lys=ubiquitinated CIITA translocates to the nucleus. CIITA ubiquitination and phosphorylation perfectly demonstrates how CIITA location and activity is regulated through PTM cross-talk. Identifying CIITA PTMs and understanding how they mediate CIITA regulation is necessary due to the critical role CIITA has in the initiation of the adaptive immune response.
The Borrelia afzelii outer membrane protein BAPKO_0422 binds human factor-H and is predicted to form a membrane-spanning β-barrel
Authors: Dyer Adam , Brown Gemma , Stejskal Lenka , Laity Peter R. , Bingham Richard J.
Published: July 2015

The deep evolutionary history of the Spirochetes places their branch point early in the evolution of the diderms, before the divergence of the present day Proteobacteria. As a spirochete, the morphology of the Borrelia cell envelope shares characteristics of both Gram-positive and Gram-negative bacteria. A thin layer of peptidoglycan, tightly associated with the cytoplasmic membrane, is surrounded by a more labile outer membrane (OM). This OM is rich in lipoproteins but with few known integral membrane proteins. The outer membrane protein A (OmpA) domain is an eight-stranded membrane-spanning β-barrel, highly conserved among the Proteobacteria but so far unknown in the Spirochetes. In the present work, we describe the identification of four novel OmpA-like β-barrels from Borrelia afzelii, the most common cause of erythema migrans (EM) rash in Europe. Structural characterization of one these proteins (BAPKO_0422) by SAXS and CD indicate a compact globular structure rich in β-strand consistent with a monomeric β-barrel. Ab initio molecular envelopes calculated from the scattering profile are consistent with homology models and demonstrate that BAPKO_0422 adopts a peanut shape with dimensions 25×45 Å (1 Å=0.1 nm). Deviations from the standard C-terminal signature sequence are apparent; in particular the C-terminal phenylalanine residue commonly found in Proteobacterial OM proteins is replaced by isoleucine/leucine or asparagine. BAPKO_0422 is demonstrated to bind human factor H (fH) and therefore may contribute to immune evasion by inhibition of the complement response. Encoded by chromosomal genes, these proteins are highly conserved between Borrelia subspecies and may be of diagnostic or therapeutic value.
Overexpression of transforming growth factor type III receptor restores TGF-β1 sensitivity in human tongue squamous cell carcinoma cells
Authors: Li Duo , Xu Dongyang , Lu Zhiyong , Dong Xingli , Wang Xiaofeng
Published: July 2015

The transforming growth factor type III receptor (TβRIII), also known as β-glycan, is a multi-functional sensor that regulates growth, migration and apoptosis in most cancer cells. We hereby investigated the expression of TβRIII in clinical specimens of tongue squamous cell carcinoma (TSCC) and the underlying mechanism that TβRIII inhibits the growth of CAL-27 human oral squamous cells. The TSCC tissues showed a significant decrease in TβRIII protein expression as detected by immunohistochemistry (IHC) and western blot analysis. Transfection of TβRIII-containing plasmid DNA dramatically promoted TGF-β1 (10 ng/ml)-induced decrease in cell viability, apoptosis and cell arrest at the G0-/G1-phase. Moreover, transient overexpression of TβRIII enhanced the TGF-β1-induced cyclin-dependent kinase inhibitor 2b (CDKN2b) and p38 protein activity, but did not affect the activities of extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase 1/2 (JNK1/2) in CAL-27 cells. These results suggest overexpression of TβRIII receptor restored TGF-β1 sensitivity in CAL-27 cells, which may provide some new insights on exploiting this molecule therapeutically.