bluuebunny/crossref_metadata_2025 huggingface dataset:
Linking star formation and galaxy kinematics in the massive cluster
Abell 2163
Authors: Menacho Veronica , Verdugo Miguel
Published: February 2015

The origin of the morphology-density relation is still an open question in galaxy
evolution. It is most likely driven by the combination of the efficient star
formation in the highest peaks of the mass distribution at
high-z and the transformation by environmental processes at
later times as galaxies fall into more massive halos. To gain additional
insights about these processes we study the kinematics, star formation and
structural properties of galaxies in Abell 2163 a very massive
(~4×1015 M⊙, Holz &
Perlmutter 2012) merging cluster at
z = 0.2.

We use high resolution spectroscopy with VLT/VIMOS to derive rotation curves and
dynamical masses for galaxies that show regular kinematics. Galaxies that show
irregular rotation are also analysed to study the origin of their distortion.
This information is combined with stellar masses and structural parameters
obtained from high quality CFHT imaging. From narrow band photometry (2.2m/WFI),
centered on the redshifted Hα line, we obtain star formation rates.

Although our sample is still small, field and cluster galaxies lie in a similar
Tully-Fisher relation as local galaxies. Controlling by additional parameters
like SFRs or bulge-to-disk ratio do not affect this result. We find however that
~50% of the cluster galaxies display irregular kinematics in contrast to what is
found in the field at similar redshifts (~30%, Böhm et al.2004) and in agreement with other
studies in clusters (e.g. Bösch et al.2013, Kutdemir et al.2010) which points out to additional
processes operating in clusters that distort the galaxy kinematics.
Disentangling the stellar populations of the counter-rotating stellar disc in NGC 5719
Authors: Morelli L. , Coccato L. , Corsini E. M. , Bontà E. Dalla , Bertola F. , Vergani D. , Buson L.
Published: February 2015

We present the stellar populations properties of the interacting spiral NGC 5719, which is known to host two cospatial counter-rotating stellar discs.
Gas accretion history of galaxies at z ~ 0 - 2: Comparison of the observational data of molecular gas with the mass evolution model of galaxies
Authors: Morokuma Kana , Baba Junichi , Sorai Kazuo , Kuno Nario
Published: February 2015

We found stellar mass-dependent evolution of galactic molecular gas fractions ($f_{\rm mol}=\frac{M_{\rm mol}}{M_\star+M_{\rm mol}}$, Mmol: molecular gas mass, M*: stellar mass) where less massive galaxies have decreased fmol from z = 1 whereas massive galaxies have already had low fmol until z = 1. Comparison of the observed quantities (fmol, optical and near infra-red [NIR] colors, specific star formation rate [sSFR = SFR/M*]) with mass evolution models suggests that less massive galaxies had high fmol at z = 1 thanks to recent gas accretion.
High-resolution 3D dust radiative transfer in galaxies with DART-Ray
Authors: Natale Giovanni , Popescu Cristina C. , Tuffs Richard. J. , Debattista Victor P. , Grootes Meiert W.
Published: February 2015

DART-Ray is a 3D ray-tracing dust radiative transfer (RT) code that can be used to derive stellar and dust emission maps of galaxy models and simulations with arbitrary geometries. In addition to the previously published RT algorithm, we have now included in DART-Ray the possibility of calculating the stocastically heated dust emission from each volume element within a galaxy. To show the capabilities of the code, we performed a high-resolution (26 pc) RT calculation for a galaxy N-body+SPH simulation. The simulated galaxy we considered is characterized by a nuclear disc and a flocculent spiral structure. We analysed the derived galaxy maps for the global and local effects of dust on the galaxy attenuation as well as the contribution of scattered radiation to the predicted observed emission. In addition, by performing an additional RT calculation including only the stellar volume emissivity due to young stellar populations (SPs), we derived the contribution to the total dust emission powered by young and old SPs. Full details of this work will be presented in a forthcoming publication.
Stellar Mass Maps for S4G
Authors: Querejeta Miguel , Meidt Sharon E. , Schinnerer Eva ,   S4G
Published: February 2015

We present stellar mass maps for the S4G sample based on imaging at 3.6 μm that we correct for the presence of non-stellar emission using an ICA technique. Our dust-free images can be readily converted into stellar mass maps, and this important legacy dataset will be made public through IRSA.
Gas inflow and AGN-driven outflow in M51
Authors: Querejeta M. , Meidt S. E. , Schinnerer E. , García-Burillo S. , Pety J. , Hughes A. , Meier D. , Bigiel F. , Kreckel K. , Blanc G.
Published: February 2015

We study the feeding and feedback of the nucleus of M51 by considering gravitational torques, responsible for gas inflow, in relation to the local distribution of dense gas.
Near-IR Integral Field Spectroscopy of the central region of NGC 5929
Authors: Riffel Rogemar A. , Storchi-Bergmann Thaisa , Riffel Rogério
Published: February 2015

We present two-dimensional (2D) near-infrared spectra of the inner 300×300 pc2 of the Seyfert 2 galaxy NGC 5929 at a spatial resolution of ~20 pc obtained with the Gemini Near infrared Integral Field Spectrograph (NIFS). We present 2D maps for the emission line flux distributions and kinematics and report the discovery of a linear structure ~300 pc in extent and of ~50 pc in width oriented perpendicular to the radio jet, showing broadened emission-line profiles.

While over most of the field the emission-line profiles have full-widths-at-half-maximum (FWHM) of ~210 km/s, at a linear structure perpendicular do the radio jet the emission-line FWHMs are twice this value, and are due to two velocity components, one blueshifted and the other redshifted relative to the systemic velocity. We attribute these velocities to an outflow from the nucleus which is launched perpendicular to the radio jet. We reported the detection of this peculiar outflow in Riffel, Storchi-Bergmann & Riffel (2014a), where more details of the analysis can be found. Since, NGC 5929 has a Type 2 nucleus, this detection implies that: (1) both ionizing radiation and relativistic particles are escaping through holes in the torus perpendicular to the radio jet; and/or (2) the torus is also outflowing, as proposed by recent models of tori as winds from the outer parts of an accretion flow; or (3) the torus is absent in NGC 5929.

At other locations the gas kinematics is dominated by rotation in a disk, although some evidences of interaction of the radio jet with the emitting gas are seen as a broadening of the line profiles at the locations of the radio structures.

The flux distributions for the [P ii], [Fe ii], H i and H2 emission lines show that the line emission is more extended along the PA = 60/240^, extending to up to 1.5” to both sides of the nucleus, while to the perpendicular direction (PA = -30/150^) the emission is extended to 0.7” from the nucleus. The flux distributions of all emission lines show a good correlation with radio the radio structures, with the two peak of emission associated to the soutwestern and northeastern radio knots. Some differences are observed among distinct emission lines. While the [Fe ii] and H2 emission peak at the location of the soutwestern radio structure at 0.6” from the nucleus, the H i recombination lines present the their highest fluxes at the location of the northeastern radio hotspot at 0.5” from the nucleus. Another difference is that the H2 emission is less collimated than that for other lines, being more extended perpendicularly to the radio jet. A detailed analysis of the line emission and kinematics will be presented in Riffel, Storchi-Bergmann & Riffel (2014b).
Spiral Galaxy in 3D as Seen with SpIOMM
Authors: Rousseau-Nepton Laurie , Robert Carmelle , Drissen Laurent
Published: February 2015

Using the imaging Fourier transform spectrograph (FTS) SpIOMM we study 7 nearby spiral galaxies. The large database of spectra obtained around Hα and Hβ is ideal to study the star forming regions and warm ionized medium (WIM) with a high spatial resolution (∼ 50-150 pc).
Kennicutt-Schmidt relation in the HI dominated regime
Authors: Roychowdhury Sambit , Huang Mei-Ling , Kauffmann Guinevere , Chengalur Jayaram N.
Published: February 2015

We investigate the existence of a Kennicutt-Schmidt type relation between ΣSFR and Σgas, atomic in the HI dominated regions of nearby spirals and dwarf irregulars.
An Infrared Luminous Merger with Two Bipolar Molecular Outflows : ALMA View of NGC 3256
Authors: Sakamoto K. , Aalto S. , Combes F. , Evans A. , Peck A.
Published: February 2015

We found with ALMA 3D spectroscopy two bipolar molecular outflows in the luminous infrared galaxy NGC 3256. Each of the two merger nuclei has its own bipolar outflow.
A strong clustering of FIR-selected galaxies in the AKARI All-Sky Survey
Authors: Suzuki Tomoko , Takeuchi Tsutomu T. , Pollo Agnieszka , Oyabu Shinki
Published: February 2015

Various previous galaxy surveys have revealed that different types of galaxies show different spatial distributions. By comparing their clustering strengths, we can investigate the relationship between the environments where galaxies reside and the properties of galaxies. This provides us vital information on when, where, and how galaxies are formed. In this study, we focus on FIR-selected galaxies from AKARI All-Sky Survey, which are considered to be dusty star-forming galaxies. We measure their power spectrum and compare our final result with previous studies using different galaxy samples detected at other wavelengths. It is found that there is the very clear wavelength dependence of the clustering strength.
NGC 5128's Globular Cluster System: Is There a Dark Side?
Authors: Taylor Matthew , Puzia Thomas , Gomez Matias , Woodley Kristin
Published: February 2015

Dynamical mass estimates (${\cal M}_{\rm dyn}$) and mass-to-light ratios ($\Upsilon_{\rm dyn}$) were derived for a sample of NGC 5128's globular clusters (GCs). We find two distinct sequences in the $\Upsilon_{\rm dyn}$ − ${\cal M}_{\rm dyn}$ plane, which are well fit by power laws of the forms $\Upsilon_{\rm dyn}\propto {\cal M}_{\rm dyn}^{0.33\pm0.04}$ and $\Upsilon_{\rm dyn}\propto {\cal M}_{\rm dyn}^{0.91\pm0.04}$. The former traces bright “classical” GCs, and the latter represents objects that are dynamically dominated by large dark matter components or by abnormally massive central black holes.
Gaseous environment in LLAGN: modes of interaction with compact star nuclear population
Authors: Zajaček M. , Karas V. , Šubr L. , Kunneriath D. , Eckart A.
Published: February 2015

The Galactic center, which serves as a paradigm of low-luminosity active galactic nuclei (LLAGN), hosts the Nuclear star cluster (NSC) that contains both young and more evolved stars. So far the population of the end-products of stellar evolution has not been observationally confirmed and studied, although there are hints of its presence. We study the distribution of interaction modes of a hypothetical population of neutron stars within the sphere of influence of the Sgr A* supermassive black hole (SMBH). The comparison of our models with future observations could be used to constrain the 3D structure of the Galactic center.
Galaxy population study of the 26 most massive galaxy clusters within the SPT footprint
Authors: Zenteno Alfredo
Published: February 2015

We present optical properties of the 26 most massive galaxy clusters in the South Pole Telescope 2500 sq-deg footprint. We find a general consistency between our results and results found in the literature on samples built with different selection techniques. Most interesting, we find a preference for an evolution in the slope of the Schechter function, α, with its value increasing at higher redshift.
Bar effects on ionized gas properties and dust content in galaxy centers
Authors: Zurita A. , Florido E. , Pérez I. , Coelho P. , Gadotti D. A.
Published: February 2015

Observations and simulations indicate that bars are important agents to transfer material towards galaxy centers. However, observational studies devoted to investigate the effects of bars in galaxy centers are not yet conclusive. We have used a sample (Coelho & Gadotti 2011) of nearby face–on galaxies with available spectra (SDSS database) to investigate the footprints of bars in galaxy centers by analysing the central ionized gas properties of barred and unbarred galaxies separately. We find statistically significant differences in the Hβ Balmer extinction, star formation rate per unit area, in the [S ii]λ6717/[S ii]λ6731 line ratio, and notably in the N2 parameter (N2 = log([N ii]λ6583/Hα)). A deeper analysis reflects that these differences are only relevant for the less massive bulges (≲1010M⊙). These results have important consequences for studies on bulge formation and galaxy evolution.
A 3D analysis of the metal distribution in the compact group of galaxies HCG 31
Authors: Torres-Flores Sergio , Mendes de Oliveira Claudia , Alfaro-Cuello Mayte , Carrasco Eleazar Rodrigo , de Mello Duilia , Amram Philippe
Published: February 2015

We present new Gemini/GMOS integral field unit observations of the central region of the merging compact group of galaxies HCG 31. Using this data set, we derive the oxygen abundances for the merging galaxies HCG 31A and HCG 31C. We found a smooth metallicity gradient between the nuclei of these galaxies, suggesting a mixing of metals between these objects. These results are confirmed by high-resolution Fabry-Perot data, from which we infer that gas is flowing between HCG 31A and HCG 31C.
The dilemma of informal governance with outside option as solution
Authors: Verdier Daniel
Published: February 2015

The efficiency-oriented part of the literature on informal governance points to institutional costs as a reason for governments to prefer to cooperate with each other through commitments that are not binding. Left unexplained is what I call the dilemma of informal governance: how informal governance copes with the problem of cheating, to which formal governance has traditionally provided the solution. I show that like-mindedness, the current solution to the dilemma, is convincing but underspecified. Working from a model of governance encompassing the three time-honored dimensions of obligation, precision, and delegation, I analytically explore two other solutions, one that fails, information transmission, another that works, outside option, which I borrow from the power-oriented part of the literature on informal governance. A key finding is that informal governance, despite being neither self-enforceable nor informative, is sustainable for mild Prisoner’s Dilemma (PD) types in the presence of outside options. I illustrate the model findings by tracing an historical correlation between power polarization and formalism in the design of security regimes.
Aggression and the symmetrical application of International Humanitarian Law
Authors: Kalmanovitz Pablo
Published: February 2015

Recent scholarship in just war theory has challenged the principle of symmetrical application of International Humanitarian Law (IHL). This revisionist work, which is increasingly dominating the field of contemporary war ethics, rejects the idea that the rules of conduct of war (jus in bello) should be agnostic about the justice of the decision to go to war (jus ad bellum). Just wars are perceived to be inherently at odds with the principle of symmetrical application of IHL, which appears to create a hard choice between justice and legality. I show that this challenge to IHL is misplaced. It derives from a widespread view among just war theorists according to which only one side in a just war can be justified in using force. By looking closely at the nature of adjudication of just causes of war, I show that there can be cases of war in which both sides are justified in using force, and cases in which, though not objectively justified, both sides may be excused for fighting. On the basis of this understanding ofjus ad bellum, I argue that the principle of symmetrical application of IHL in fact best reflects the uncertainty and complexity that should characterize the practical doctrine ofjus ad bellum.
Phenotypic, Genetic, and Environmental Relationships Between Self-Reported Talents and Measured Intelligence
Authors: Schermer Julie Aitken , Johnson Andrew M. , Jang Kerry L. , Vernon Philip A.
Published: February 2015

The relationship between self-report abilities and measured intelligence was examined at both the phenotypic (zero-order) level as well as at the genetic and environmental levels. Twins and siblings (N = 516) completed a timed intelligence test and a self-report ability questionnaire, which has previously been found to produce 10 factors, including: politics, interpersonal relationships, practical tasks, intellectual pursuits, academic skills, entrepreneur/business, domestic skills, vocal abilities, and creativity. At the phenotypic level, the correlations between the ability factor scores and intelligence ranged from 0.01 to 0.42 (between self-report academic abilities and verbal intelligence). Further analyses found that some of the phenotypic relationships between self-report ability scores and measured intelligence also had significant correlations at the genetic and environmental levels, suggesting that some of the observed relationships may be due to common genetic and/or environmental factors.
Magnetic Resonance Imaging of Electrolysis.
Authors: Meir Arie , Hjouj Mohammad , Rubinsky Liel , Rubinsky Boris
Published: February 2015

This study explores the hypothesis that Magnetic Resonance Imaging (MRI) can image the process of electrolysis by detecting pH fronts. The study has relevance to real time control of cell ablation with electrolysis. To investigate the hypothesis we compare the following MR imaging sequences: T1 weighted, T2 weighted and Proton Density (PD), with optical images acquired using pH-sensitive dyes embedded in a physiological saline agar solution phantom treated with electrolysis and discrete measurements with a pH microprobe. We further demonstrate the biological relevance of our work using a bacterialE. Colimodel, grown on the phantom. The results demonstrate the ability of MRI to image electrolysis produced pH changes in a physiological saline phantom and show that these changes correlate with cell death in theE. Colimodel grown on the phantom. The results are promising and invite further experimental research.
Electronic excitation induced amorphization in titanate pyrochlores: an ab initio molecular dynamics study
Authors: Xiao H. Y. , Weber W. J. , Zhang Y. , Zu X. T. , Li S.
Published: February 2015

The response of titanate pyrochlores (A2Ti2O7, A = Y, Gd and Sm) to electronic excitation is investigated utilizing an ab initio molecular dynamics method. All the titanate pyrochlores are found to undergo a crystalline-to-amorphous structural transition under a low concentration of electronic excitations. The transition temperature at which structural amorphization starts to occur depends on the concentration of electronic excitations. During the structural transition, O2-like molecules are formed and this anion disorder further drives cation disorder that leads to an amorphous state. This study provides new insights into the mechanisms of amorphization in titanate pyrochlores under laser, electron and ion irradiations.
The Molecular Photo-Cell: Quantum Transport and Energy Conversion at Strong Non-Equilibrium
Authors: Ajisaka Shigeru , Žunkovič Bojan , Dubi Yonatan
Published: February 2015

The molecular photo-cell is a single molecular donor-acceptor complex attached to electrodes and subject to external illumination. Besides the obvious relevance to molecular photo-voltaics, the molecular photo-cell is of interest being a paradigmatic example for a system that inherently operates in out-of-equilibrium conditions and typically far from the linear response regime. Moreover, this system includes electrons, phonons and photons and environments which induce coherent and incoherent processes, making it a challenging system to address theoretically. Here, using an open quantum systems approach, we analyze the non-equilibrium transport properties and energy conversion performance of a molecular photo-cell, including both coherent and incoherent processes and treating electrons, photons and phonons on an equal footing. We find that both the non-equilibrium conditions and decoherence play a crucial role in determining the performance of the photovoltaic conversion and the optimal energy configuration of the molecular system.
Building Damage-Resilient Dominating Sets in Complex Networks against Random and Targeted Attacks
Authors: Molnár F. , Derzsy N. , Szymanski B. K. , Korniss G.
Published: February 2015

We study the vulnerability of dominating sets against random and targeted node removals in complex networks. While small, cost-efficient dominating sets play a significant role in controllability and observability of these networks, a fixed and intact network structure is always implicitly assumed. We find that cost-efficiency of dominating sets optimized for small size alone comes at a price of being vulnerable to damage; domination in the remaining network can be severely disrupted, even if a small fraction of dominator nodes are lost. We develop two new methods for finding flexible dominating sets, allowing either adjustable overall resilience, or dominating set size, while maximizing the dominated fraction of the remaining network after the attack. We analyze the efficiency of each method on synthetic scale-free networks, as well as real complex networks.
Precise positioning with current multi-constellation Global Navigation Satellite Systems: GPS, GLONASS, Galileo and BeiDou
Authors: Li Xingxing , Zhang Xiaohong , Ren Xiaodong , Fritsche Mathias , Wickert Jens , Schuh Harald
Published: February 2015

The world of satellite navigation is undergoing dramatic changes with the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs). At the moment more than 70 satellites are already in view and about 120 satellites will be available once all four systems (BeiDou + Galileo + GLONASS + GPS) are fully deployed in the next few years. This will bring great opportunities and challenges for both scientific and engineering applications. In this paper we develop a four-system positioning model to make full use of all available observations from different GNSSs. The significant improvement of satellite visibility, spatial geometry, dilution of precision, convergence, accuracy, continuity and reliability that a combining utilization of multi-GNSS brings to precise positioning are carefully analyzed and evaluated, especially in constrained environments.
Sensory afferent segregation in three-eared frogs resemble the dominance columns observed in three-eyed frogs
Authors: Elliott Karen L. , Houston Douglas W. , Fritzsch Bernd
Published: February 2015

The formation of proper sensory afferent connections during development is essential for brain function. Activity-based competition is believed to drive ocular dominance columns (ODC) in mammals and in experimentally-generated three-eyed frogs. ODC formation is thus a compromise of activity differences between two eyes and similar molecular cues. To gauge the generality of graphical map formation in the brain, we investigated the inner ear projection, known for its well-defined and early segregation of afferents from vestibular and auditory endorgans. In analogy to three eyed-frogs, we generated three-eared frogs to assess to what extent vestibular afferents from two adjacent ears could segregate. Donor ears were transplanted either in the native orientation or rotated by 90 degrees. These manipulations should result in either similar or different induced activity between both ears, respectively. Three-eared frogs with normal orientation showed normal swimming whereas those with a rotated third ear showed aberrant behaviors. Projection studies revealed that only afferents from the rotated ears segregated from those from the native ear within the vestibular nucleus, resembling the ocular dominance columns formed in three-eyed frogs. Vestibular segregation suggests that mechanisms comparable to those operating in the ODC formation of the visual system may act on vestibular projection refinements.
Structural Color Painting by Rubbing Particle Powder
Authors: Park ChooJin , Koh Kunsuk , Jeong Unyong
Published: February 2015

Structural colors originate from purely physical structures. Scientists have been inspired to mimic the structures found in nature, the realization of these structures still presents a great challenge. We have recently introduced unidirectional rubbing of a dry particle powder on a rubbery surface as a quick, highly reproducible means to fabricate a single crystal monolayer assembly of particles over an unlimited area. This study extends the particle-rubbing process to a novel fine-art painting, structural color painting (SCP). SCP is based on structural coloring with varying iridescence according to the crystal orientation, as controlled by the rubbing direction. This painting technique can be applied on curved surfaces, which enriches the objects to be painted and helps the painter mimic the structures found in nature. It also allows for quick fabrication of complicated particle-assembly patterns, which enables replication of paintings.
Calcium-dependent protein kinases responsible for the phosphorylation of a bZIP transcription factor FD crucial for the florigen complex formation
Authors: Kawamoto Nozomi , Sasabe Michiko , Endo Motomu , Machida Yasunori , Araki Takashi
Published: February 2015

Appropriate timing of flowering is critical for reproductive success and necessarily involves complex genetic regulatory networks. A mobile floral signal, called florigen, is a key molecule in this process and FLOWERING LOCUS T (FT) protein is its major component in Arabidopsis. FT is produced in leaves, but promotes the floral transition in the shoot apex, where it forms a complex with a basic region/leucine-zipper (bZIP) transcription factor, FD. Formation of the florigen complex depends on the supposed phosphorylation of FD; hitherto, however, the responsible protein kinase(s) have not been identified. In this study, we prepared protein extracts from shoot apices of plants around the floral transition and detected a protein kinase activity that phosphorylates a threonine residue at position 282 of FD (FD T282), which is a crucial residue for the complex formation with FT via 14-3-3. The kinase activity was calcium-dependent. Subsequent biochemical, cellular and genetic analyses showed that three calcium-dependent protein kinases (CDPKs) efficiently phosphorylate FD T282. Two of them (CPK6 and CPK33) are expressed in shoot apical meristem and directly interact with FD, suggesting they have redundant functions. The loss of function of one CDPK (CPK33) resulted in a weak but significant late-flowering phenotype.
Enhanced targeted integration mediated by translocated I-SceI during the Agrobacterium mediated transformation of yeast
Authors: Rolloos Martijn , Hooykaas Paul J. J. , van der Zaal Bert J.
Published: February 2015

Agrobacterium mediated transformation (AMT) has been embraced by biotechnologists as the technology of choice to introduce or alter genetic traits of plants. However, in plants it is virtually impossible to predetermine the integration site of the transferred T-strand unless one is able to generate a double stranded break (DSB) in the DNA at the site of interest. In this study, we used the model organism Saccharomyces cerevisiae to investigate whether the Agrobacterium mediated translocation of site-specific endonucleases via the type IV secretion system (T4SS), concomitantly with T-DNA transfer is possible and whether this can improve the gene targeting efficiency. In addition to that, the effect of different chromatin states on targeted integration, was investigated. It was found that Agrobacterium mediated translocation of the homing endonuclease I-SceI has a positive effect on the integration of T-DNA via the homologous repair (HR) pathway. Furthermore, we obtained evidence that nucleosome removal has a positive effect on I-SceI facilitated T-DNA integration by HR. Reversely; inducing nucleosome formation at the site of integration removes the positive effect of translocated I-SceI on T-DNA integration.
Application of FT-NIR spectroscopy and FT-IR spectroscopy to Chinese rice wine for rapid determination of fermentation process parameters
Authors: Wu Zhengzong , Long Jie , Xu Enbo , Wu Chunsen , Wang Fang , Xu Xueming , Jin Zhengyu , Jiao Aiquan
Published: February 2015

NIR and MIR combined with chemometric tools were used to monitor time-related changes during Chinese rice wine fermentation.
A smart approach to achieve an exceptionally high loading of metal nanoparticles supported by functionalized extended frameworks for efficient catalysis
Authors: Gole Bappaditya , Sanyal Udishnu , Mukherjee Partha Sarathi
Published: February 2015

Pores of MOFs were decorated with terminal alkyne to achieve very high loading of gold nanoparticles for efficient catalytic reduction of aromatic nitro-compounds.
Loading of mesoporous titania films by CH3NH3PbI3 perovskite, single step vs. sequential deposition
Authors: Yantara Natalia , Sabba Dharani , Yanan Fang , Kadro Jeannette M. , Moehl Thomas , Boix Pablo P. , Mhaisalkar Subodh , Grätzel Michael , Grätzel Carole
Published: February 2015

The sequential deposition method enables a better pore filling and a more conformal and structured capping layer of perovskite on top of the TiO2. The contact areas between the HTM/perovskite and HTM/TiO2 are, thus, minimized and the shunting is reduced, which is reflected on the FF and Voc.
Direct access to macroporous chromium nitride and chromium titanium nitride with inverse opal structure
Authors: Zhao Weitian , DiSalvo Francis J.
Published: February 2015

A facile synthesis of single-phase, nanocrystalline macroporous chromium nitride and chromium titanium nitride with inverse opal morphology is developed.
Infrared laser triggered release of bioactive compounds from single hard shell microcapsules
Authors: Vöpel Tobias , Scholz Rebecca , Davico Luca , Groß Magdalena , Büning Steffen , Kareth Sabine , Weidner Eckhard , Ebbinghaus Simon
Published: February 2015

Thermal microscopy combines laser-induced heating and real time imaging. Temperature jumps release bioactive compounds from temperature sensitive single microcapsules.
N-doped microporous carbons derived from direct carbonization of K+ exchanged meta-aminophenol–formaldehyde resin for superior CO2 sorption
Authors: Zhou Jin , Li Zhaohui , Xing Wei , Zhu Tingting , Shen Honglong , Zhuo Shuping
Published: February 2015

Direct carbonization of K+ exchanged meta-aminophenol–formaldehyde resin afforded N-doped ultramicroporous carbons with high CO2 uptakes.
Polymorphism and solid-to-solid phase transitions of a simple organic molecule, 3-chloroisonicotinic acid
Authors: Long Sihui , Zhou Panpan , Parkin Sean , Li Tonglei
Published: February 2015

Three polymorphs have been discovered for 3-chloroisonicotinic acid. Its thermal properties appear to be eventful, including sublimation, melting and recrystallization, and solid-to-solid phase transition. The polymorphism seemingly results from the disruption of molecular symmetry by chlorine substitution.
Theoretical examination of solvent and R group dependence in gold thiolate nanoparticle synthesis
Authors: Neidhart Suzanne M. , Barngrover Brian M. , Aikens Christine M.
Published: February 2015

The reaction of phenylthiol with AuCl4− yields gold thiolate nanoparticle precursors in polar solvents.
On the characterization of NaDEHP/n-heptane nonaqueous reverse micelles: the effect of the polar solvent
Authors: Quintana Silvina S. , Dario Falcone R. , Silber Juana J. , Moyano Fernando , Mariano Correa N.
Published: February 2015

Schematic representation of different interfaces in the novel nonaqueous NaDEHP/n-heptane reverse micelle.
In situ Raman and surface-enhanced Raman spectroscopy on working electrodes: spectroelectrochemical characterization of water oxidation electrocatalysts
Authors: Joya Khurram S. , Sala Xavier
Published: February 2015

This perspective article gives an overview of the current developments regarding the use ofin situRaman and surface-enhanced Raman spectroscopy on working electrodes for probing the fate of molecular and heterogeneous catalysts during electrochemical water oxidation.
Discriminative modulation of the highest occupied molecular orbital energies of graphene and carbon nanotubes induced by charging
Authors: Yang Hongping , Yam Chi-yung , Zhang Aihua , Xu Zhiping , Luo Jun , Zhu Jing
Published: February 2015

First-principles calculations show that the increase in the highest occupied molecular orbital energy of a charged carbon nanotube is different from graphene.
Ligand-exchange mechanism: new insight into solid-phase extraction of uranium based on a combined experimental and theoretical study
Authors: Tian Yin , Fu Jia , Zhang Yi , Cao Kecheng , Bai Chiyao , Wang Dongqi , Li Shoujian , Xue Ying , Ma Lijian , Zheng Chong
Published: February 2015

The extraction mechanism is an exchange process between the ligands on Urea-GO and the coordinated water molecules of uranyl.
Fragmentation dynamics in dissociative electron attachment to CO probed by velocity slice imaging
Authors: Nag Pamir , Nandi Dhananjay
Published: February 2015

Kinematically complete measurements of the dissociative electron attachment to carbon monoxide have been performed using a highly differential momentum imaging technique.
Model dyads for 2PA uncaging of a protecting group via photoinduced electron transfer
Authors: Ciuciu Adina I. , Korzycka Karolina A. , Lewis Wilfred J. M. , Bennett Philip M. , Anderson Harry L. , Flamigni Lucia
Published: February 2015

Photoinduced electron transfer dynamics in dyads based on a fluorene derivative as a donor and several electron acceptors is examined.
Where to place the positive muon in the Periodic Table?
Authors: Goli Mohammad , Shahbazian Shant
Published: February 2015

The positively charged muon is capable of forming its own “atoms in molecules” displaying characteristics of a chemical element.
Mono-, di- and tetra-zinc complexes derived from an amino-benzotriazole phenolate ligand containing a bulkier N-alkyl pendant arm: synthesis, structure and catalysis for ring-opening polymerization of cyclic esters
Authors: Wang Jun-Han , Tsai Chen-Yen , Su Jing-Kai , Huang Bor-Hunn , Lin Chu-Chieh , Ko Bao-Tsan
Published: February 2015

Tetranuclear alkoxide 3 with a saddle-shaped Zn4O4 conformation was an active initiator for living ROP of ε-caprolactone and β-butyrolactone.
Cyclometallated gold(iii) aryl-pyridine complexes as efficient catalysts for three-component synthesis of substituted oxazoles
Authors: von Wachenfeldt Henrik , Polukeev Alexey V. , Loganathan Nagarajan , Paulsen Filip , Röse Philipp , Garreau Marion , Wendt Ola F. , Strand Daniel
Published: February 2015

Cyclometallated gold(iii) complexes efficiently catalyze the multicomponent reaction between imines, alkynes, and acyl chlorides to form trisubstituted oxazoles.
The viability of Lactobacillus fermentum CECT5716 is not essential to exert intestinal anti-inflammatory properties
Authors: Rodríguez-Nogales Alba , Algieri Francesca , Vezza Teresa , Garrido-Mesa Natividad , Olivares Mónica , Comalada Mònica , Riccardi Carlo , Utrilla Ma Pilar , Rodríguez-Cabezas Ma Elena , Galvez Julio
Published: February 2015

The viability ofL. fermentumCECT5716 did not affect its immune-modulatory and anti-inflammatory properties.
Impact of soyasaponin I on TLR2 and TLR4 induced inflammation in the MUTZ-3-cell model
Authors: Fußbroich Daniela , Schubert Ralf , Schneider Petra , Zielen Stefan , Beermann Christopher
Published: February 2015

The anti-inflammatory capacity of SoSa I is based on influencing both monocytic TLR2- and TLR4-induced inflammation by inhibiting whole bacteria more effectively than their appropriate PAMPs.
Small angle X-ray scattering analysis of Cu2+-induced oligomers of the Alzheimer's amyloid β peptide
Authors: Ryan Timothy M. , Kirby Nigel , Mertens Haydyn D. T. , Roberts Blaine , Barnham Kevin J. , Cappai Roberto , Pham Chi Le Lan , Masters Colin L. , Curtain Cyril C.
Published: February 2015

Research into causes of Alzheimer's disease and its treatment has produced a tantalising array of hypotheses about the role of transition metal dyshomeostasis, many of them on the interaction of these metals with the neurotoxic amyloid-β peptide (Aβ).
A sol–gel route to synthesize SiO2/TiO2 well-ordered nanocrystalline mesoporous photocatalysts through ionic liquid control
Authors: Zhang Fengfeng , Sun Dayin , Yu Chunling , Yin Yuxin , Dai Hongyi , Shao Guolin
Published: February 2015

SiO2/TiO2 composite photocatalysts were prepared through a sol–gel method, using an ionic liquid (IL), 1-butyl-3-methylimidazole bromide ([Bmim]Br), as a structure controlling agent.
Synthesis, characterization and antioxidant activity of organoselenium and organotellurium compound derivatives of chrysin
Authors: Fonseca Sergio F. , Lima David B. , Alves Diego , Jacob Raquel G. , Perin Gelson , Lenardão Eder João , Savegnago Lucielli
Published: February 2015

New selenium and tellurium containing chrysin derivatives were synthesized and their antioxidant activities were evaluated. Butyltelluro-chrysin presented better antioxidant activities.
Highly enantioselective Michael addition reactions with new trimeric chiral phase transfer catalysts
Authors: Beneto Arockiam Jesin , Sivamani Jayaraman , Ashokkumar Veeramanoharan , Balasaravanan Rajendiran , Duraimurugan Kumaraguru , Siva Ayyanar
Published: February 2015

New types of mesitylene based tri-site containing asymmetric quaternary ammonium salts 9 (9a and 9b) were synthesized and their catalytic activities were studied using Michael addition reactions with various chalcones and diethylmalonate under mild basic conditions with very good yields and ee's.
Curcumin associated poly(allylamine hydrochloride)-phosphate self-assembled hierarchically ordered nanocapsules: size dependent investigation on release and DPPH scavenging activity of curcumin
Authors: Mouslmani Mai , Rosenholm Jessica M. , Prabhakar Neeraj , Peurla Markus , Baydoun Elias , Patra Digambara
Published: February 2015

Curcumin associated poly(allylamine hydrochloride) crosslinks with dipotassium phosphate and silica nanoparticles to form nanocapsule that shows DPPH scavenging activity and releases curcumin triggered by pH.
Synthesis of a flower-like Zr-based metal–organic framework and study of its catalytic performance in the Mannich reaction
Authors: Luan Yi , Qi Yue , Jin Zhaokui , Peng Xiong , Gao Hongyi , Wang Ge
Published: February 2015

UiO-66-(COOH)2 with flower-like morphology was synthesized for the first time and its heterogeneous Brønsted acidic catalytic activities have been studied.
Hierarchical ZnO/zeolite nanostructures: synthesis, growth mechanism and hydrogen detection
Authors: Qurashi Ahsanulhaq , Alhaffar Mouheddin , Yamani Zain H.
Published: February 2015

(a–c) Zeolite and ZnO/zeolite hierarchical nanostructures and (d) fabrication of hydrogen sensor using these hierarchical nanostructures.
Glycine-assisted synthesis of NiO hollow cage-like nanostructures for sensitive non-enzymatic glucose sensing
Authors: Ibupoto Zafar Hussain , Nafady Aynam , Soomro Razium Ali , Sirajuddin Sirajuddin , Hussain Sherazi Syed Tufail , Abro Muhammad Ishaq , Willander Magnus
Published: February 2015

In this work, a highly sensitive non-enzymatic glucose sensor was developed based on NiO hollow cage-like nanostructures (NiO HCs).
Efficient and recyclable multi-cationic polyoxometalate-based hybrid catalyst for heterogeneous cyclohexane oxidation with H2O2
Authors: Xue Shuang , Chen Guojian , Long Zhouyang , Zhou Yu , Wang Jun
Published: February 2015

A new multi-cationic polyoxometalate-based hybrid is developed as a recyclable, efficient heterogeneous catalyst for H2O2-mediated oxidation of cyclohexane.
Modified biopolymer-dextrin based crosslinked hydrogels: application in controlled drug delivery
Authors: Das Dipankar , Pal Sagar
Published: February 2015

This review describes hydrogels and their classifications along with the synthesis and properties of biopolymer-dextrin based crosslinked hydrogels towards potential application in controlled drug delivery.
Nanoscale phase separation in laponite–polypyrrole nanocomposites. Application to electrodes for energy storage
Authors: Fatnassi Mohamed , Es-Souni Mohammed
Published: February 2015

Nanocomposites of laponite and polypyrrole nanoscale phase separation that results in clay nanodomains interconnected with meandering polypyrrole. Electrodes with specific capacitances of up to 350 F g−1.
A label-free amperometric immunosensor for the detection of carcinoembryonic antigen based on novel magnetic carbon and gold nanocomposites
Authors: Li Faying , Jiang Liping , Han Jian , Liu Qing , Dong Yunhui , Li Yueyun , Wei Qin
Published: February 2015

In this work, a novel label-free electrochemical immunosensor was developed for the quantitative detection of carcinoembryonic antigen (CEA).
Tunable p-type doping of Si nanostructures for near infrared light photodetector application
Authors: Liang Feng-Xia , Zhang Deng-Yue , Zou Yi-feng , Hu Han , Zhang Teng-Fei , Wu Yu-Cheng , Luo Lin-Bao
Published: February 2015

A near infrared light nano-heterojunction photodetector was fabricated by combining graphene and boron doped p-type silicon nanowires, which were synthesized by a co-thermal evaporation method.
Aerobic oxidation of 5-hydroxymethylfurfural (HMF) effectively catalyzed by a Ce0.8Bi0.2O2−δ supported Pt catalyst at room temperature
Authors: Miao Zhenzhen , Wu Tianxiao , Li Jingwei , Yi Ting , Zhang Yibo , Yang Xiangguang
Published: February 2015

98% yield of FDCA was obtained within 30 min at room temperature when HMF oxidation was catalyzed by Pt/Ce0.8Bi0.2O2−δ.
Target profiling of an antimetastatic RAPTA agent by chemical proteomics: relevance to the mode of action
Authors: Babak Maria V. , Meier Samuel M. , Huber Kilian V. M. , Reynisson Jóhannes , Legin Anton A. , Jakupec Michael A. , Roller Alexander , Stukalov Alexey , Gridling Manuela , Bennett Keiryn L. , Colinge Jacques , Berger Walter , Dyson Paul J. , Superti-Furga Giulio , Keppler Bernhard K. , Hartinger Christian G.
Published: February 2015

The RAPTA pharmacophore was linked to beads to identify its biomolecular targets in cancer cells.
Parametric investigation of room-temperature fluoride-ion batteries: assessment of electrolytes, Mg-based anodes, and BiF3-cathodes
Authors: Gschwind Fabienne , Bastien Joshua
Published: February 2015

Multiparametric investigations for RT fluoride ion batteries.
Highly reduced molybdophosphate as a noble-metal-free catalyst for the reduction of chromium using formic acid as a reducing agent
Authors: Gong Kaining , Wang Weijie , Yan Jinshuang , Han Zhangang
Published: February 2015

Cobalt-containing polyoxometalates exhibit catalytic performance for toxic chromium(vi) reduction using formic acid under mild conditions.
Y-doped BaZrO3as a chemically stable electrolyte for proton-conducting solid oxide electrolysis cells (SOECs)
Authors: Bi Lei , Shafi Shahid P. , Traversa Enrico
Published: February 2015

A proton-conducting SOEC with chemically stable Y-doped BaZrO3is fabricated for the first time for electrolysis applications.
Synthesis of monodispersed polystyrene–silver core–shell particles and their application in the fabrication of stretchable large-scale anisotropic conductive films
Authors: Chen Hsueh-Yung , Shen Hsiu-Ping , Wu Hung-Chin , Wang Man-Sheng , Lee Chia-Fen , Chiu Wen-Yen , Chen Wen-Chang
Published: February 2015

An innovative and facile method is proposed to prepare large-scale anisotropic conductive films by incorporating organic–inorganic core–shell conductive particles.
Participation of b0,+and B0,+systems in the transport of mercury bound to cysteine in intestinal cells
Authors: Vázquez M. , Vélez D. , Devesa V.
Published: February 2015

The main source of exposure to mercury (Hg) as divalent inorganic Hg [Hg(ii)] and methylmercury (CH3Hg) is the diet, in which complexes with the amino acid cysteine (Hg–Cys) may be found.
Fabrication of a trans-scale bimetallic synergistic enhanced Raman scattering substrate with high surface-enhanced Raman scattering activity
Authors: Xie Wanyi , He Shixuan , Xia Liangping , Zhang Hua , Zhang Wei , Shen Zexiang , Liu Xiaohong , Hu Jianming
Published: February 2015

A novel trans-scale bimetallic synergistic enhanced Raman scattering (TBSERS) substrate was fabricated and employed for sensitive detection of bisphenol A (BPA).
Just dip it: online coupling of “Dip-it” polymer monolith microextraction with plasma assisted laser desorption ionization mass spectrometry
Authors: Wang Xin , Li Xianjiang , Bai Yu , Liu Huwei
Published: February 2015

Polymer monolith microextraction coupled to plasma assisted laser desorption ionization mass spectrometry for rapid and organic solvent-free trace analysis.
Water-mediated long-range interactions between the internal vibrations of remote proteins
Authors: Kuffel Anna , Zielkiewicz Jan
Published: February 2015

We demonstrated that interfacial water can influence and mediate long-range protein–protein interactions leading to a partial synchronization of internal movements of proteins.
The propargylbenzene dimer: C–H⋯π assisted π–π stacking
Authors: Kundu Aniket , Sen Saumik , Patwari G. Naresh
Published: February 2015

The infrared spectrum of a size-selected propargylbenzene dimer suggests the formation of a π-stacked dimer.
High performance surface-enhanced Raman scattering from molecular imprinting polymer capsulated silver spheres
Authors: Guo Yan , Kang Leilei , Chen Shaona , Li Xin
Published: February 2015

Driven by the ultrasensitivity of the surface-enhanced Raman scattering (SERS) technique and the directive selection of molecular imprinting polymers (MIPs), core–shell silver-molecularly imprinted polymer (Ag@MIP) hybrid structure was synthesized to serve as a novel SERS platform.
Oxidation of CO on a carbon-based material composed of nickel hydroxide and hydroxyl graphene oxide, (Ni4(OH)3–hGO) – a first-principles calculation
Authors: Yeh Chen-Hao , Ho Jia-Jen
Published: February 2015

The mechanism of CO oxidation on a composite of nickel hydroxide and hydroxyl graphene oxide, Ni4(OH)3–hGO.
Oxidation of germa- and stanna-closo-dodecaborate
Authors: Gädt Torben , Dimmer Jörg-Alexander , Fleischhauer Sebastian , Frank Anita , Nickl Claudia , Wütz Tobias , Eichele Klaus , Wesemann Lars
Published: February 2015

Oxidation of group 14 heteroborates [GeB11H11]2− and [SnB11H11]2− yields a symmetrical dimer exhibiting a Ge–Ge bond or an unsymmetrical dimer bearing an Sn–B bond.
Fish oil ameliorates trimethylamine N-oxide-exacerbated glucose intolerance in high-fat diet-fed mice
Authors: Gao Xiang , Xu Jie , Jiang Chengzi , Zhang Yi , Xue Yong , Li Zhaojie , Wang Jingfeng , Xue Changhu , Wang Yuming
Published: February 2015

Dietary fish oil could ameliorate trimethylamineN-oxide (TMAO)-induced impaired glucose tolerance in HFD-fed mice.
One-pot synthesis of hydrazono-sulfonamide adducts using Cu(BTC) MOF catalyst and their remarkable AIEE properties: unprecedented copper(ii)-catalyzed generation of ketenimine
Authors: Mahendran Vaithiyanathan , Shanmugam Sivakumar
Published: February 2015

One pot & simple operation; short reaction time; no column purification; very less catalyst loading; scalable.
Air-stable ambipolar organic field-effect transistors based on naphthalenediimide–diketopyrrolopyrrole copolymers
Authors: Wang Ping , Li Hui , Gu Chunling , Dong Huanli , Xu Zhenzhen , Fu Hongbing
Published: February 2015

A transition from unipolar to ambipolar transport can be achieved by decreasing the thiophene linkers in the backbone ofPNDI-mT(DPP)mT.
One-phonon sideband and multiphonon relaxation in La1.6Mo2O9: Eu0.43+ and β-NaGdF4: Tb3+ nanocrystals
Authors: Liu Chunxu , Zhang Jisen , Luo Yongshi
Published: February 2015

Two one-phonon sidebands (PSBs) were observed and the phonon density of states ρ(ω) were determined experimentally.