bluuebunny/crossref_metadata_2025_split huggingface dataset:
Retardation of shape change of Au nanorods using photo‐cross‐linkable ligands
Authors: Danielsen Scott P. O. , Choi Jihoon , Composto Russell J. 
Published: October 2015

ABSTRACTThe thermal reshaping of gold nanorods has been slowed by grafting a diblock copolymer [P(S‐b‐S‐N3)] containing an outer polystyrene (PS) brush and a short, inner photo‐cross‐linkable PS‐azide block. The P(S‐b‐S‐N3)‐Au NRs were dispersed in a PS thin film and reshaping was investigated using scanning electron microscopy and UV–Vis spectroscopy. For P(S‐b‐S‐N3)‐Au NRs in PS, the longitudinal surface plasmon resonance decreased from about 880 toward 750 nm upon annealing at 100 °C, 150 °C, and 200 °C. This blue shift increased in strength as temperature increased. However, this reshaping of P(S‐b‐S‐N3)‐Au NRs was slower than that of Au NRs grafted with a poly(ethylene glycol) brush that was dispersed in poly(methyl methacrylate). By slowing down reshaping at elevated temperature, polymer thin film devices that heat during use (e.g., polarization dependent filters) can exhibit a longer lifetime. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 301–307
Macro‐ and Micromorphologic Interpretation of Relict Periglacial Slope Deposits from the Holy Cross Mountains, Poland
Authors: Pawelec Halina , Ludwikowska‐Kędzia Małgorzata 
Published: October 2015

AbstractRelict periglacial slope cover deposits in the Holy Cross Mountains of Poland are composed of material derived from bedrock, loess and sand of polygenic origin. The aim of this study was to interpret the processes that deposited three massive coarse‐grained diamictons near the base of gentle hillslopes. Based on macroscopic and microscopic sedimentological analyses, the diamictons are attributed to deposition by three processes – active‐layer detachment, solifluction and high‐energy overland flow – due to climatic and geomorphologic factors. The use of microscopic analysis revealed the detailed texture and structure of these deposits, and was particularly important in interpreting fine‐grained sediments produced by low‐energy overland flow. This technique served as the basis for the differentiation of solifluction deposits and high‐density flow deposits. The active‐layer detachment deposit (adjacent to the slip plane) was characterised by a heterogenous texture and breccia‐type structure with domains and clasts oriented parallel to the slope. The deposit included erosional surfaces and individual slip planes. The solifluction deposit was a clayey diamicton with a banded structure oriented parallel to the slope. The low‐energy overland flow deposit was laminated and sorted with laminae oriented parallel to the slope. The high‐energy overland flow deposit was a homogeneous and massive diamicton with a silty/sandy matrix and randomly oriented clasts and grains. The following characteristics helped identify the sediment type: the degree of homogenisation, texture, sedimentary structure and fabric. Features including plasmic fabric, deformation structures and microporosity played an additional role in identifying the studied deposits. In relict slope deposits, these features may be formed as a result of depositional or postdepositional processes. Copyright © 2015 John Wiley & Sons, Ltd.
On the contribution of synoptic transients to the mean atmospheric state in the Gulf Stream region
Authors: Parfitt Rhys , Czaja Arnaud 
Published: October 2015

A new decomposition of the time‐mean sea‐level pressure, precipitation, meridional velocity (v) and pressure vertical velocity (ω) is applied to ERA‐Interim reanalysis data over the North Atlantic Ocean for the December–February 1979–2011 time period. The decomposition suggests that the atmosphere over the Gulf Stream is dominated by a continuous series of synoptic systems, or baroclinic waves, propagating across the region. The time‐mean value of precipitation, meridional velocity and ω (the latter being taken as a proxy for upward and downward motion) is accordingly set by the propagating waves. The result is particularly striking for ω (v) considering that ascent and descent (poleward and equatorward flow) could reasonably be expected to cancel out in such a series of waves.These results shed a new light on analyses of the storm‐track heat budget in which the residual between diabatic heating and ‘transient’ eddy heat fluxes (singled out through band‐pass time filtering or spatial Fourier analysis) is interpreted as a Rossby wave source. This interpretation is questioned because, as a consequence of the filtering used, these studies prevent any direct contribution of the ‘transients’ to the time‐mean ω or meridional velocity, attributing entirely both fields to the circulation associated with the thermally forced Rossby wave. The fact that ‘transients’ directly contribute to the observed time mean ω over the Gulf Stream might also explain the discrepancy between the observed and predicted response of the vertical motion field to heating in midlatitudes.
Opportunistic distributed channel access for a dense wireless small‐cell zone
Authors: Goonewardena Mathew , Yadav Animesh , Ajib Wessam , Elbiaze Halima 
Published: October 2015

AbstractThis paper considers uplink channel access in a zone of closed‐access small‐cells that is deployed in a macrocell service area. All small‐cell user equipments (SUEs) have access to a common orthogonal set of channels, leading to intercell interference. In addition, each channel forms a separate collision domain in each cell, thus can be successfully used only by one SUE of that cell. This paper proposes two non‐cooperative Bayesian games, G1 and G2, that are played among the SUEs. G1 assumes the availability of channel state information at the transmitters, while G2 assumes the availability of only the distribution of the channel state information. Each SUE can choose to transmit over one of the channels or not to transmit. The emphasis of the paper is on the set of symmetric threshold strategies where the Nash equilibrium is fully determined by a single parameter. The existence and uniqueness of pure Bayesian–Nash symmetric equilibrium of G1 in threshold strategies and mixed Bayesian–Nash symmetric equilibrium of G2 in uniformly distributed threshold strategies are proven. Numerical results corroborate the theoretical findings and benchmark against another decentralized scheme. Copyright © 2015 John Wiley & Sons, Ltd.
U-shaped fairings suppress vortex-induced vibrations for cylinders in cross-flow
Authors: Xie Fangfang , Yu Yue , Constantinides Yiannis , Triantafyllou Michael S. , Karniadakis George Em 
Published: October 2015

We employ three-dimensional direct and large-eddy numerical simulations of the vibrations and flow past cylinders fitted with free-to-rotate U-shaped fairings placed in a cross-flow at Reynolds number $100\leqslant \mathit{Re}\leqslant 10\,000$. Such fairings are nearly neutrally buoyant devices fitted along the axis of long circular risers to suppress vortex-induced vibrations (VIVs). We consider three different geometric configurations: a homogeneous fairing, and two configurations (denoted A and AB) involving a gap between adjacent segments. For the latter two cases, we investigate the effect of the gap on the hydrodynamic force coefficients and the translational and rotational motions of the system. For all configurations, as the Reynolds number increases beyond 500, both the lift and drag coefficients decrease. Compared to a plain cylinder, a homogeneous fairing system (no gaps) can help reduce the drag force coefficient by 15 % for reduced velocity $U^{\ast }=4.65$, while a type A gap system can reduce the drag force coefficient by almost 50 % for reduced velocity $U^{\ast }=3.5,4.65,6$, and, correspondingly, the vibration response of the combined system, as well as the fairing rotation amplitude, are substantially reduced. For a homogeneous fairing, the cross-flow amplitude is reduced by about 80 %, whereas for fairings with a gap longer than half a cylinder diameter, VIVs are completely eliminated, resulting in additional reduction in the drag coefficient. We have related such VIV suppression or elimination to the features of the wake flow structure. We find that a gap causes the generation of strong streamwise vorticity in the gap region that interferes destructively with the vorticity generated by the fairings, hence disorganizing the formation of coherent spanwise cortical patterns. We provide visualization of the incoherent wake flow that leads to total elimination of the vibration and rotation of the fairing–cylinder system. Finally, we investigate the effect of the friction coefficient between cylinder and fairing. The effect overall is small, even when the friction coefficients of adjacent segments are different. In some cases the equilibrium positions of the fairings are rotated by a small angle on either side of the centreline, in a symmetry-breaking bifurcation, which depends strongly on Reynolds number.
Integration through Sports? Polish Migrants in the Ruhr, Germany
Authors: Blecking Diethelm 
Published: October 2015

AbstractSport, and football in particular, is described in socio-political discourse as an effective way to integrate immigrants. This thesis will be tested by means of a case study examining Polish migration to the mining areas of the Ruhr from the 1870s. It will be shown that, up until World War I, the sport participated in by Polish miners served, in contrast, as a means of nationalization, ethnicizing, and as an aid to furthering Polish ethnic identity. Only during the Weimar Republic were football clubs in the Ruhr actually used as a vehicle for integration and assimilation for males among the Polish minority. After World War II, memories of these footballers from among the Polish minority were either repressed or reduced to folklore. Based on this historical case study, sport appears in principle to be ambivalent between its ability to form “we” groups and the building of bridges between nationalities.
Migration and Ethnicity in Coalfield History: Global Perspectives
Authors: Knotter Ad 
Published: October 2015

AbstractThis article provides a general background to the case studies in this Special Issue by highlighting some general themes in the history of migration to coalfields worldwide. All over the world, mining companies have struggled with labour shortages and had to find ways to recruit sufficient numbers of mineworkers. The solutions adopted ranged from the involvement of part-time peasant miners, organized mediation by labour contractors, and systems of forced labour, to state regulation of national and international migration. The importance of these kinds of “intervening institution” in mobilizing labour for the coalmines is illustrated by examples from different parts of the world. Efforts to find new workers for the mines often resulted in the recruitment of ethnic groups of a lower social status, not only because they were rural and unskilled, but also because they were considered inferior from a cultural or ethnic viewpoint. In this respect there was a huge difference from the migration and settlement of skilled miners, like those from Britain and other countries. Ethnic differences were often closely related to differences in skill and social status. Although there are many instances of inter-ethnic solidarity and cooperation, depending on the time-frame and circumstances, these differences could have a profound effect on social relations in mining communities.
Research and Evaluations of the Health Aspects of Disasters, Part II: The Disaster Health Conceptual Framework Revisited
Authors: Birnbaum Marvin L. , Daily Elaine K. , O’Rourke Ann P. , Loretti Alessandro 
Published: October 2015

AbstractA Conceptual Framework upon which the study of disasters can be organized is essential for understanding the epidemiology of disasters, as well as the interventions/responses undertaken. Application of the structure provided by the Conceptual Framework should facilitate the development of the science of Disaster Health. This Framework is based on deconstructions of the commonly used Disaster Management Cycle. The Conceptual Framework incorporates the steps that occur as a hazard progresses to a disaster. It describes an event that results from the changes in the release of energy from a hazard that may cause Structural Damages that in turn, may result in Functional Damages (decreases in levels of function) that produce needs (goods and services required). These needs can be met by the goods and services that are available during normal, day-to-day operations of the community, or the resources that are contained within the community’s Response Capacity (ie, an Emergency), or by goods and services provided from outside of the affected area (outside response capacities). Whenever the Local Response Capacity is unable to meet the needs, and the Response Capacities from areas outside of the affected community are required, a disaster occurs. All responses, whether in the Relief or Recovery phases of a disaster, are interventions that use the goods, services, and resources contained in the Response Capacity (local or outside). Responses may be directed at preventing/mitigating further deterioration in levels of functions (damage control, deaths, injuries, diseases, morbidity, and secondary events) in the affected population and filling the gaps in available services created by Structural Damages (compromise in available goods, services, and/or resources; ie, Relief Responses), or may be directed toward returning the affected community and its components to the pre-event functional state (ie, Recovery Responses). Hazard Mitigation includes interventions designed to decrease the likelihood that a hazard will cause an event, and should an event occur, that the amount of energy released will be reduced. Capacity Building consists of all interventions undertaken before an event occurs in order to increase the resilience of the community to an event related to a hazard that exists in an area-at-risk. Resilience is the combination of the Absorbing, Buffering, and Response Capacities of a community-at-risk, and is enhanced through Capacity-Building efforts. A disaster constitutes a failure of resilience.BirnbaumML, DailyEK, O’RourkeAP, LorettiA. Research and evaluations of the health aspects of disasters, part II: the disaster health conceptual framework revisited. Prehosp Disaster Med. 2015;30(5):523–538.
The association between soya consumption and serum thyroid-stimulating hormone concentrations in the Adventist Health Study-2
Authors: Tonstad Serena , Jaceldo-Siegl Karen , Messina Mark , Haddad Ella , Fraser Gary E 
Published: October 2015

AbstractObjectiveConsumers may choose soya foods as healthful alternatives to animal products, but concern has arisen that eating large amounts of soya may adversely affect thyroid function. The present study aimed to examine the association between soya food consumption and serum thyroid-stimulating hormone (TSH) concentrations in North American churchgoers belonging to the Seventh-day Adventist denomination that encourages vegetarianism.DesignParticipants completed six repeated 24 h dietary recalls within a 6-month period. Soya protein and soya isoflavone intakes were estimated, and their relationships to TSH concentrations measured at the end of 6 months were calculated using logistic regression analyses.SettingCalibration sub-study of the Adventist Health Study-2.SubjectsWomen (n548) and men (n295) who were not taking thyroid medications.ResultsIn men, age and urinary iodine concentrations were associated with high serum TSH concentrations (>5 mIU/l), while among women White ethnicity was associated with high TSH. In multivariate models adjusted for age, ethnicity and urinary iodine, soya isoflavone and protein intakes were not associated with high TSH in men. In women higher soya isoflavone consumption was associated with higher TSH, with an adjusted odds ratio (highestv. lowest quintile) of 4·17 (95 % CI 1·73, 10·06). Likewise, women with high consumption of soya protein (midpoint of highest quintile, 11 g/d)v. low consumption (midpoint of lowest quintile, 0 g/d) carried increased odds of high TSH (OR=2·69; 95 % CI 1·34, 5·30).ConclusionsIn women high consumption of soya was associated with elevated TSH concentrations. No associations between soya intake and TSH were found in men.
Large-area synthesis of high-quality and uniform monolayer WS2 on reusable Au foils
Authors: Gao Yang , Liu Zhibo , Sun Dong-Ming , Huang Le , Ma Lai-Peng , Yin Li-Chang , Ma Teng , Zhang Zhiyong , Ma Xiu-Liang , Peng Lian-Mao , Cheng Hui-Ming , Ren Wencai 
Published: October 2015

AbstractLarge-area monolayer WS2 is a desirable material for applications in next-generation electronics and optoelectronics. However, the chemical vapour deposition (CVD) with rigid and inert substrates for large-area sample growth suffers from a non-uniform number of layers, small domain size and many defects, and is not compatible with the fabrication process of flexible devices. Here we report the self-limited catalytic surface growth of uniform monolayer WS2 single crystals of millimetre size and large-area films by ambient-pressure CVD on Au. The weak interaction between the WS2 and Au enables the intact transfer of the monolayers to arbitrary substrates using the electrochemical bubbling method without sacrificing Au. The WS2 shows high crystal quality and optical and electrical properties comparable or superior to mechanically exfoliated samples. We also demonstrate the roll-to-roll/bubbling production of large-area flexible films of uniform monolayer, double-layer WS2 and WS2/graphene heterostructures, and batch fabrication of large-area flexible monolayer WS2 film transistor arrays.
SDS-PAGE analysis of Aβ oligomers is disserving research into Alzheimer´s disease: appealing for ESI-IM-MS
Authors: Pujol-Pina Rosa , Vilaprinyó-Pascual Sílvia , Mazzucato Roberta , Arcella Annalisa , Vilaseca Marta , Orozco Modesto , Carulla Natàlia 
Published: October 2015

AbstractThe characterization of amyloid-beta peptide (Aβ) oligomer forms and structures is crucial to the advancement in the field of Alzheimer´s disease (AD). Here we report a critical evaluation of two methods used for this purpose, namely sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), extensively used in the field and ion mobility coupled to electrospray ionization mass spectrometry (ESI-IM-MS), an emerging technique with great potential for oligomer characterization. To evaluate their performance, we first obtained pure cross-linked Aβ40 and Aβ42 oligomers of well-defined order. Analysis of these samples by SDS-PAGE revealed that SDS affects the oligomerization state of Aβ42 oligomers, thus providing flawed information on their order and distribution. In contrast, ESI-IM-MS provided accurate information, while also reported on the chemical nature and on the structure of the oligomers. Our findings have important implications as they challenge scientific paradigms in the AD field built upon SDS-PAGE characterization of Aβ oligomer samples.
A geminivirus-based guide RNA delivery system for CRISPR/Cas9 mediated plant genome editing
Authors: Yin Kangquan , Han Ting , Liu Guang , Chen Tianyuan , Wang Ying , Yu Alice Yunzi L. , Liu Yule 
Published: October 2015

AbstractCRISPR/Cas has emerged as potent genome editing technology and has successfully been applied in many organisms, including several plant species. However, delivery of genome editing reagents remains a challenge in plants. Here, we report a virus-based guide RNA (gRNA) delivery system for CRISPR/Cas9 mediated plant genome editing (VIGE) that can be used to precisely target genome locations and cause mutations. VIGE is performed by using a modified Cabbage Leaf Curl virus (CaLCuV) vector to express gRNAs in stable transgenic plants expressing Cas9. DNA sequencing confirmed VIGE of endogenous NbPDS3 and NbIspH genes in non-inoculated leaves because CaLCuV can infect plants systemically. Moreover, VIGE of NbPDS3 and NbIspH in newly developed leaves caused photo-bleached phenotype. These results demonstrate that geminivirus-based VIGE could be a powerful tool in plant genome editing.
A facile and general route to synthesize silica-coated SERS tags with the enhanced signal intensity
Authors: Zhang Youlin , Li Xiaokun , Xue Bin , Kong Xianggui , Liu Xiaomin , Tu Langping , Chang Yulei 
Published: October 2015

AbstractSilica-coated SERS tags have been attracting greater attention in recent years. However, the reported methods to synthesize these tags are tedious and often subjected to the limited signal intensity. Here, we report a facile and general method to prepare the silica-coated Ag SERS tags with the enhanced signal intensity by no introducing the primers. This approach mainly depends on the colloidal stability of the Ag NPs in alcohol solution. By decreasing the concentration of salt in Ag NP solution, the citrate-stabilized Ag NPs can be well dispersed in alcohol solution. Based on this, the Ag SERS tags can be directly coated with thickness-controlled and homogeneous silica shells. This approach is highly reproducible for silica shell growth and signal intensity, not depending on the properties of Raman molecules, proved by 7 kinds of the Raman molecules. Moreover, this kind of SERS tags coated with silica hold the stronger SERS signals than the traditional method due to no interference from the priming molecules.
Directed Differentiation of Embryonic Stem Cells Into Cardiomyocytes by Bacterial Injection of Defined Transcription Factors
Authors: Bai Fang , Ho Lim Chae , Jia Jingyue , Santostefano Katherine , Simmons Chelsey , Kasahara Hideko , Wu Weihui , Terada Naohiro , Jin Shouguang 
Published: October 2015

AbstractForced expression of defined transcriptional factors has been well documented as an effective method for cellular reprogramming or directed differentiation. However, transgene expression is not amenable for therapeutic application due to potential insertional mutagenesis. Here, we have developed a bacterial type III secretion system (T3SS)-based protein delivery tool and shown its application in directing pluripotent stem cell differentiation by a controlled delivery of transcription factors relevant to early heart development. By fusing to an N-terminal secretion sequence for T3SS-dependent injection, three transcriptional factors, namely Gata4, Mef2c and Tbx5 (abbreviated as GMT), were translocated into murine embryonic stem cells (ESCs), where the proteins are effectively targeted to the nucleus with an average intracellular half-life of 5.5 hours. Exogenous GMT protein injection activated the cardiac program and multiple rounds of GMT protein delivery significantly improved the efficiency of ESC differentiation into cardiomyocytes. Combination of T3SS-mediated GMT delivery and Activin A treatment showed an additive effect, resulting in on average 60% of the ESCs differentiated into cardiomyocytes. ESC derived cardiomyocytes displayed spontaneous rhythmic contractile movement as well as normal hormonal responses. This work serves as a foundation for the bacterial delivery of multiple transcription factors to direct cell fate without jeopardizing genomic integrity.