bluuebunny/crossref_metadata_2025 huggingface dataset:
Regulation of monocyte cell fate by blood vessels mediated by Notch signalling
Authors: Gamrekelashvili Jaba , Giagnorio Roberto , Jussofie Jasmin , Soehnlein Oliver , Duchene Johan , Briseño Carlos G. , Ramasamy Saravana K. , Krishnasamy Kashyap , Limbourg Anne , Häger Christine , Kapanadze Tamar , Ishifune Chieko , Hinkel Rabea , Radtke Freddy , Strobl Lothar J. , Zimber-Strobl Ursula , Napp L. Christian , Bauersachs Johann , Haller Hermann , Yasutomo Koji , Kupatt Christian , Murphy Kenneth M. , Adams Ralf H. , Weber Christian , Limbourg Florian P.
Published: August 2016

A population of monocytes, known as Ly6Clo monocytes, patrol blood vessels by crawling along the vascular endothelium. Here we show that endothelial cells control their origin through Notch signalling. Using combinations of conditional genetic deletion strategies and cell-fate tracking experiments we show that Notch2 regulates conversion of Ly6Chi monocytes into Ly6Clo monocytes in vivo and in vitro, thereby regulating monocyte cell fate under steady-state conditions. This process is controlled by Notch ligand delta-like 1 (Dll1) expressed by a population of endothelial cells that constitute distinct vascular niches in the bone marrow and spleen in vivo, while culture on recombinant DLL1 induces monocyte conversion in vitro. Thus, blood vessels regulate monocyte conversion, a form of committed myeloid cell fate regulation.
Actin dynamics provides membrane tension to merge fusing vesicles into the plasma membrane
Authors: Wen Peter J. , Grenklo Staffan , Arpino Gianvito , Tan Xinyu , Liao Hsien-Shun , Heureaux Johanna , Peng Shi-Yong , Chiang Hsueh-Cheng , Hamid Edaeni , Zhao Wei-Dong , Shin Wonchul , Näreoja Tuomas , Evergren Emma , Jin Yinghui , Karlsson Roger , Ebert Steven N. , Jin Albert , Liu Allen P. , Shupliakov Oleg , Wu Ling-Gang
Published: August 2016

Vesicle fusion is executed via formation of an Ω-shaped structure (Ω-profile), followed by closure (kiss-and-run) or merging of the Ω-profile into the plasma membrane (full fusion). Although Ω-profile closure limits release but recycles vesicles economically, Ω-profile merging facilitates release but couples to classical endocytosis for recycling. Despite its crucial role in determining exocytosis/endocytosis modes, how Ω-profile merging is mediated is poorly understood in endocrine cells and neurons containing small ∼30–300 nm vesicles. Here, using confocal and super-resolution STED imaging, force measurements, pharmacology and gene knockout, we show that dynamic assembly of filamentous actin, involving ATP hydrolysis, N-WASP and formin, mediates Ω-profile merging by providing sufficient plasma membrane tension to shrink the Ω-profile in neuroendocrine chromaffin cells containing ∼300 nm vesicles. Actin-directed compounds also induce Ω-profile accumulation at lamprey synaptic active zones, suggesting that actin may mediate Ω-profile merging at synapses. These results uncover molecular and biophysical mechanisms underlying Ω-profile merging.
Dynamic spin filtering at the Co/Alq3 interface mediated by weakly coupled second layer molecules
Authors: Droghetti Andrea , Thielen Philip , Rungger Ivan , Haag Norman , Großmann Nicolas , Stöckl Johannes , Stadtmüller Benjamin , Aeschlimann Martin , Sanvito Stefano , Cinchetti Mirko
Published: August 2016

Spin filtering at organic-metal interfaces is often determined by the details of the interaction between the organic molecules and the inorganic magnets used as electrodes. Here we demonstrate a spin-filtering mechanism based on the dynamical spin relaxation of the long-living interface states formed by the magnet and weakly physisorbed molecules. We investigate the case of Alq3 on Co and, by combining two-photon photoemission experiments with electronic structure theory, show that the observed long-time spin-dependent electron dynamics is driven by molecules in the second organic layer. The interface states formed by physisorbed molecules are not spin-split, but acquire a spin-dependent lifetime, that is the result of dynamical spin-relaxation driven by the interaction with the Co substrate. Such spin-filtering mechanism has an important role in the injection of spin-polarized carriers across the interface and their successive hopping diffusion into successive molecular layers of molecular spintronics devices.
Surface Kondo effect and non-trivial metallic state of the Kondo insulator YbB12
Authors: Hagiwara Kenta , Ohtsubo Yoshiyuki , Matsunami Masaharu , Ideta Shin-ichiro , Tanaka Kiyohisa , Miyazaki Hidetoshi , Rault Julien E. , Fèvre Patrick Le , Bertran François , Taleb-Ibrahimi Amina , Yukawa Ryu , Kobayashi Masaki , Horiba Koji , Kumigashira Hiroshi , Sumida Kazuki , Okuda Taichi , Iga Fumitoshi , Kimura Shin-ichi
Published: August 2016

A synergistic effect between strong electron correlation and spin–orbit interaction has been theoretically predicted to realize new topological states of quantum matter on Kondo insulators (KIs), so-called topological Kondo insulators (TKIs). One TKI candidate has been experimentally observed on the KI SmB6(001), and the origin of the surface states (SS) and the topological order of SmB6 has been actively discussed. Here, we show a metallic SS on the clean surface of another TKI candidate YbB12(001) using angle-resolved photoelectron spectroscopy. The SS shows temperature-dependent reconstruction corresponding to the Kondo effect observed for bulk states. Despite the low-temperature insulating bulk, the reconstructed SS with c–f hybridization is metallic, forming a closed Fermi contour surrounding "Equation missing" on the surface Brillouin zone and agreeing with the theoretically expected behaviour for SS on TKIs. These results demonstrate the temperature-dependent holistic reconstruction of two-dimensional states localized on KIs surface driven by the Kondo effect.
Gut microbiome and dietary patterns in different Saudi populations and monkeys
Authors: Angelakis Emmanouil , Yasir Muhammad , Bachar Dipankar , Azhar Esam I. , Lagier Jean-Christophe , Bibi Fehmida , Jiman-Fatani Asif A. , Alawi Maha , Bakarman Marwan A. , Robert Catherine , Raoult Didier
Published: August 2016

Host genetics, environment, lifestyle and proximity between hosts strongly influence the composition of the gut microbiome. To investigate the association of dietary variables with the gut microbiota, we used 16S rDNA sequencing to test the fecal microbiome of Bedouins and urban Saudis and we compared it to the gut microbiome of baboons living in close contact with Bedouins and eating their leftovers. We also analyzed fermented dairy products commonly consumed by Bedouins in order to investigate their impact on the gut microbiome of this population. We found that the gut microbiomes of westernized urban Saudis had significantly lower richness and biodiversity than the traditional Bedouin population. The gut microbiomes of baboons were more similar to that of Bedouins compared to urban Saudis, probably due the dietary overlap between baboons and Bedouins. Moreover, we found clusters that were compositionally similar to clusters identified in humans and baboons, characterized by differences in Acinetobacter, Turicibacter and Collinsella. The fermented food presented significantly more bacteria genera common to the gut microbiome of Bedouins compared to urban Saudis. These results support the hypothesis that dietary habits influence the composition of the gut microbiome.
Influence of interstitial Fe to the phase diagram of Fe1+yTe1−xSex single crystals
Authors: Sun Yue , Yamada Tatsuhiro , Pyon Sunseng , Tamegai Tsuyoshi
Published: August 2016

Superconductivity (SC) with the suppression of long-range antiferromagnetic (AFM) order is observed in the parent compounds of both iron-based and cuprate superconductors. The AFM wave vectors are bicollinear (π, 0) in the parent compound FeTe different from the collinear AFM order (π, π) in most iron pnictides. Study of the phase diagram of Fe1+yTe1−xSex is the most direct way to investigate the competition between bicollinear AFM and SC. However, presence of interstitial Fe affects both magnetism and SC of Fe1+yTe1−xSex, which hinders the establishment of the real phase diagram. Here, we report the comparison of doping-temperature (x-T) phase diagrams for Fe1+yTe1−xSex (0 ≤ x ≤ 0.43) single crystals before and after removing interstitial Fe. Without interstitial Fe, the AFM state survives only for x < 0.05 and bulk SC emerges from x = 0.05 and does not coexist with the AFM state. The previously reported spin glass state and the coexistence of AFM and SC may be originated from the effect of the interstitial Fe. The phase diagram of Fe1+yTe1−xSex is found to be similar to the case of the “1111” system such as LaFeAsO1−xFx and is different from that of the “122” system.
Substantial Underestimation of Post-Harvest Burning Emissions in the North China Plain Revealed by Multi-Species Space Observations
Authors: Stavrakou T. , Müller J.-F. , Bauwens M. , De Smedt I. , Lerot C. , Van Roozendael M. , Coheur P.-F. , Clerbaux C. , Boersma K. F. , van der A R. , Song Y.
Published: August 2016

The large-scale burning of crop residues in the North China Plain (NCP), one of the most densely populated world regions, was recently recognized to cause severe air pollution and harmful health effects. A reliable quantification of the magnitude of these fires is needed to assess regional air quality. Here, we use an eight-year record (2005–2012) of formaldehyde measurements from space to constrain the emissions of volatile organic compounds (VOCs) in this region. Using inverse modelling, we derive that satellite-based post-harvest burning fluxes are, on average, at least a factor of 2 higher than state-of-the-art bottom-up statistical estimates, although with significant interannual variability. Crop burning is calculated to cause important increases in surface ozone (+7%) and fine aerosol concentrations (+18%) in the North China Plain in June. The impact of crop fires is also found in satellite observations of other species, glyoxal, nitrogen dioxide and methanol and we show that those measurements validate the magnitude of the top-down fluxes. Our study indicates that the top-down crop burning fluxes of VOCs in June exceed by almost a factor of 2 the combined emissions from other anthropogenic activities in this region, underscoring the need for targeted actions towards changes in agricultural management practices.
Inverse Doppler Effects in Broadband Acoustic Metamaterials
Authors: Zhai S. L. , Zhao X. P. , Liu S. , Shen F. L. , Li L. L. , Luo C. R.
Published: August 2016

The Doppler effect refers to the change in frequency of a wave source as a consequence of the relative motion between the source and an observer. Veselago theoretically predicted that materials with negative refractions can induce inverse Doppler effects. With the development of metamaterials, inverse Doppler effects have been extensively investigated. However, the ideal material parameters prescribed by these metamaterial design approaches are complex and also challenging to obtain experimentally. Here, we demonstrated a method of designing and experimentally characterising arbitrary broadband acoustic metamaterials. These omni-directional, double-negative, acoustic metamaterials are constructed with ‘flute-like’ acoustic meta-cluster sets with seven double meta-molecules; these metamaterials also overcome the limitations of broadband negative bulk modulus and mass density to provide a region of negative refraction and inverse Doppler effects. It was also shown that inverse Doppler effects can be detected in a flute, which has been popular for thousands of years in Asia and Europe.
Flickering task–irrelevant distractors induce dilation of target duration depending upon cortical distance
Authors: Okajima Miku , Yotsumoto Yuko
Published: August 2016

Flickering stimuli are perceived to be longer than stable stimuli. This so-called “flicker-induced time dilation” has been investigated in a number of studies, but the factors critical for this effect remain unclear. We explored the spatial distribution of the flicker effect and examined how the flickering task-irrelevant distractors spatially distant from the target induce time dilation. In two experiments, we demonstrated that flickering distractors dilated the perceived duration of the target stimulus even though the target stimulus itself was stable. In addition, when the distractor duration was much longer than the target duration, a flickering distractor located ipsilateral to the target caused greater time dilation than did a contralateral distractor. Thus the amount of dilation depended on the distance between the cortical areas responsible for the stimulus locations. These findings are consistent with the recent study reporting that modulation of neural oscillators encoding the interval duration could explain flicker-induced time dilation.
Direct-Write Fabrication of Cellulose Nano-Structures via Focused Electron Beam Induced Nanosynthesis
Authors: Ganner Thomas , Sattelkow Jürgen , Rumpf Bernhard , Eibinger Manuel , Reishofer David , Winkler Robert , Nidetzky Bernd , Spirk Stefan , Plank Harald
Published: September 2016

In many areas of science and technology, patterned films and surfaces play a key role in engineering and development of advanced materials. Here, we introduce a new generic technique for the fabrication of polysaccharide nano-structures via focused electron beam induced conversion (FEBIC). For the proof of principle, organosoluble trimethylsilyl-cellulose (TMSC) thin films have been deposited by spin coating on SiO2 / Si and exposed to a nano-sized electron beam. It turns out that in the exposed areas an electron induced desilylation reaction takes place converting soluble TMSC to rather insoluble cellulose. After removal of the unexposed TMSC areas, structured cellulose patterns remain on the surface with FWHM line widths down to 70 nm. Systematic FEBIC parameter sweeps reveal a generally electron dose dependent behavior with three working regimes: incomplete conversion, ideal doses and over exposure. Direct (FT-IR) and indirect chemical analyses (enzymatic degradation) confirmed the cellulosic character of ideally converted areas. These investigations are complemented by a theoretical model which suggests a two-step reaction process by means of TMSC → cellulose and cellulose → non-cellulose material conversion in excellent agreement with experimental data. The extracted, individual reaction rates allowed the derivation of design rules for FEBIC parameters towards highest conversion efficiencies and highest lateral resolution.
Continuous microfluidic assortment of interactive ligands (CMAIL)
Authors: Hsiao Yi-Hsing , Huang Chao-Yang , Hu Chih-Yung , Wu Yen-Yu , Wu Chung-Hsiun , Hsu Chia-Hsien , Chen Chihchen
Published: August 2016

Finding an interactive ligand-receptor pair is crucial to many applications, including the development of monoclonal antibodies. Biopanning, a commonly used technique for affinity screening, involves a series of washing steps and is lengthy and tedious. Here we present an approach termed continuous microfluidic assortment of interactive ligands, or CMAIL, for the screening and sorting of antigen-binding single-chain variable antibody fragments (scFv) displayed on bacteriophages (phages). Phages carrying native negative charges on their coat proteins were electrophoresed through a hydrogel matrix functionalized with target antigens under two alternating orthogonal electric fields. During the weak horizontal electric field phase, phages were differentially swept laterally depending on their affinity for the antigen and all phages were electrophoresed down to be collected during the strong vertical electric field phase. Phages of different affinity were spatially separated, allowing the continuous operation. More than 105 CFU (colony forming unit) antigen-interacting phages were isolated with ~100% specificity from a phage library containing 3 × 109 individual members within 40 minutes of sorting using CMAIL. CMAIL is rapid, sensitive, specific and does not employ washing, elution or magnetic beads. In conclusion, we have developed an efficient and cost-effective method for isolating and sorting affinity reagents involving phage display.
Weibel-Palade body size modulates the adhesive activity of its von Willebrand Factor cargo in cultured endothelial cells
Authors: Ferraro Francesco , da Silva Mafalda Lopes , Grimes William , Lee Hwee Kuan , Ketteler Robin , Kriston-Vizi Janos , Cutler Daniel F.
Published: August 2016

Changes in the size of cellular organelles are often linked to modifications in their function. Endothelial cells store von Willebrand Factor (vWF), a glycoprotein essential to haemostasis in Weibel-Palade bodies (WPBs), cigar-shaped secretory granules that are generated in a wide range of sizes. We recently showed that forcing changes in the size of WPBs modifies the activity of this cargo. We now find that endothelial cells treated with statins produce shorter WPBs and that the vWF they release at exocytosis displays a reduced capability to recruit platelets to the endothelial cell surface. Investigating other functional consequences of size changes of WPBs, we also report that the endothelial surface-associated vWF formed at exocytosis recruits soluble plasma vWF and that this process is reduced by treatments that shorten WPBs, statins included. These results indicate that the post-exocytic adhesive activity of vWF towards platelets and plasma vWF at the endothelial surface reflects the size of their storage organelle. Our findings therefore show that changes in WPB size, by influencing the adhesive activity of its vWF cargo, may represent a novel mode of regulation of platelet aggregation at the vascular wall.
Effects of early feeding on the host rumen transcriptome and bacterial diversity in lambs
Authors: Wang Weimin , Li Chong , Li Fadi , Wang Xiaojuan , Zhang Xiaoxue , Liu Ting , Nian Fang , Yue Xiangpeng , Li Fei , Pan Xiangyu , La Yongfu , Mo Futao , Wang Fangbin , Li Baosheng
Published: August 2016

Early consumption of starter feed promotes rumen development in lambs. We examined rumen development in lambs fed starter feed for 5 weeks using histological and biochemical analyses and by performing high-throughput sequencing in rumen tissues. Additionally, rumen contents of starter feed-fed lambs were compared to those of breast milk-fed controls. Our physiological and biochemical findings revealed that early starter consumption facilitated rumen development, changed the pattern of ruminal fermentation, and increased the amylase and carboxymethylcellulase activities of rumen micro-organisms. RNA-seq analysis revealed 225 differentially expressed genes between the rumens of breast milk- and starter feed-fed lambs. These DEGs were involved in many metabolic pathways, particularly lipid and carbohydrate metabolism, and included HMGCL and HMGCS2. Sequencing analysis of 16S rRNA genes revealed that ruminal bacterial communities were more diverse in breast milk-than in starter feed-fed lambs, and each group had a distinct microbiota. We conclude that early starter feeding is beneficial to rumen development and physiological function in lambs. The underlying mechanism may involve the stimulation of ruminal ketogenesis and butanoate metabolism via HMGCL and HMGCS2 combined with changes in the fermentation type induced by ruminal microbiota. Overall, this study provides insights into the molecular mechanisms of rumen development in sheep.
Quantification of Mn in glass matrices using laser induced breakdown spectroscopy (LIBS) combined with chemometric approaches
Authors: Devangad Praveen , Unnikrishnan V. K. , Tamboli M. M. , Shameem K. M. Muhammed , Nayak Rajesh , Choudhari K. S. , Santhosh C.
Published: August 2016

Usage of multivariate calibration methods for the analysis of Mn in complex matrices like glass using Laser-Induced Breakdown Spectroscopy (LIBS).
A new method for the determination of total furanic aldehyde compounds in Brazilian cachaça samples using liquid–liquid extraction and UV detection
Authors: Melo Erika M. G. , Fernandes Julys P. A. , Cunha Francisco A. S. , Lira Jéssica O. B. , Lima Ricardo A. C. , Lima Kássio M. G. , Almeida Luciano F.
Published: August 2016

This work proposes a simple, rapid and low-cost method for the determination of total furanic aldehyde compounds in Brazilian cachaça samples.
Cellular uptake of drug loaded spider silk particles
Authors: Schierling Martina B. , Doblhofer Elena , Scheibel Thomas
Published: September 2016

Medical therapies are often accompanied by not-wanted side-effects or, even worse, targeted cells can develop drug resistance leading to an ineffective treatment. Here, it was shown that drugs can be efficiently delivered into and released within cells when spider silk particles were used as a carrier.
A comparison of MOP-phosphonite ligands and their applications in Rh(i)- and Pd(ii)-catalysed asymmetric transformations
Authors: Fleming James T. , Wills Corinne , Waddell Paul G. , Harrington Ross W. , Higham Lee J.
Published: September 2016

Six chiral MOP-phosphonites have been synthesised and compared via experimental and computational methods in an effort to quantify their differing structural and electronic profiles.
Highly effective ion-pair receptors based on 2,2-bis(aminomethyl)-propionic acid
Authors: Załubiniak Dominika , Zakrzewski Maciej , Piątek Piotr
Published: August 2016

Working in concert cation and anion binding domains of ditopic receptors based on 2,2-bis-(aminomethyl)-propionic acid allow for highly effective complexation of sodium salts of chloride, bromide and nitrate.
Sodium ion interaction with psyllium husk (Plantago sp.)
Authors: Jimoh M. A. , MacNaughtan W. , Williams H. E. L. , Greetham D. , Linforth R. L. , Fisk I. D.
Published: August 2016

The nature of and factors effecting sodium interaction with psyllium were investigated in vitro. The feasibility of use of psyllium husk to reduce the bioavailable fraction of ingested sodium is demonstrated.
The discovery of a potent series of carboxamide TRPA1 antagonists
Authors: Pryde D. C. , Marron B. , West C. G. , Reister S. , Amato G. , Yoger K. , Padilla K. , Turner J. , Swain N. A. , Cox P. J. , Skerratt S. E. , Ryckmans T. , Blakemore D. C. , Warmus J. , Gerlach A. C.
Published: August 2016

Potent and selective carboxamide TRPA1 antagonists were identified by high throughput screening, with efficacy demonstrated in a topical inflammation model.
Application of graphene quantum dots decorated with TEMPO-derivatized zinc phthalocyanine as novel nanoprobes: probing the sensitive detection of ascorbic acid
Authors: Achadu Ojodomo J. , Nyokong Tebello
Published: August 2016

A nanocomposite of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl substituted zinc phthalocyanine and graphene quantum dots is a selective fluorescence sensor for ascorbic acid.
Synthesis and antiproliferative activity of new tonantzitlolone-derived diterpene derivatives
Authors: Busch Torsten , Dräger Gerald , Kunst Eike , Benson Hannah , Sasse Florenz , Siems Karsten , Kirschning Andreas
Published: August 2016

The synthesis, determination of cytotoxic properties and phenotype visualisation during mitosis of tonantzitlolone A and 18 derivatives is reported.
Polymer brushes on metal–organic frameworks by UV-induced photopolymerization
Authors: Hou Liman , Wang Lei , Zhang Ning , Xie Zhigang , Dong Dewen
Published: August 2016

A general strategy for creating polymer brushes on the surface of MOF nanoparticles and membranes is described.
A novel naphthalimide scaffold based iodonium salt as a one-component photoacid/photoinitiator for cationic and radical polymerization under LED exposure
Authors: Zivic N. , Bouzrati-Zerrelli M. , Villotte S. , Morlet-Savary F. , Dietlin C. , Dumur F. , Gigmes D. , Fouassier J. P. , Lalevée J.
Published: August 2016

A strong drawback to overcome for photoinitiators of cationic polymerization or photoacids is their low photosensitivity for long wavelengths.
Direct vicinal difunctionalization of alkynes through trifluoromethylation and aminosulfonylation via insertion of sulfur dioxide under catalyst-free conditions
Authors: Li Yuewen , Xiang Yuanchao , Li Zhiming , Wu Jie
Published: August 2016

Direct vicinal difunctionalization of alkynes through a catalyst-free four-component reaction of Togni's reagent, alkynes, sulfur dioxide, and hydrazines at room temperature is developed, which generates (E)-3,3,3-trifluoroprop-1-ene-1-sulfonohydrazides in good yields.
Theoretical investigation of boron-doped lithium clusters, BLin (n = 3–6), activating CO2: an example of the carboxylation of C–H bonds
Authors: Ma Jing-Feng , Ma Fang , Zhou Zhong-Jun , Tao Liu Ying
Published: September 2016

Boron-doped lithium clusters BLin activating CO2 is reported. And the carboxylation of C–H bond of benzene can be achieved through C–C bond formation and H-atom-transfer from C to O via two H2O molecules acting as an H-transfer tunnel.
A first-principles study on the defective properties of MAX phase Cr2AlC: the magnetic ordering and strong correlation effect
Authors: Han Han , Wickramaratne Darshana , Huang Qing , Dai Jianxing , Li Tongwei , Wang Hui , Zhang Wei , Huai Ping
Published: August 2016

The defective properties of Cr2AlC can be very different from the commonly studied Ti-based MAX phases.
A theoretical study of methylation and CH/π interactions in DNA intercalation: methylated 1,10-phenanthroline in adenine–thymine base pairs
Authors: Gil A. , Branchadell V. , Calhorda M. J.
Published: August 2016

This work shows that quality is better that quantity to estabilize the intercalation of methylated phen.
Chiral dendrigraft polymer for asymmetric synthesis of isoquinuclidines
Authors: Smitha G. , Sreekumar K.
Published: September 2016

A copper complex of chiral modified dendrigraft amidoamine polymer with a pentaerythritol initiated polyepichlorohydrin core, PEN-G2, on a solid resin support is employed in the synthesis of isoquinuclidines via aza Diels–Alder reaction between cyclohexenone and imines.
Electrodeposition of nickel nanoflowers on screen-printed electrodes and their application to non-enzymatic determination of sugars
Authors: Pérez-Fernández Beatriz , Martín-Yerga Daniel , Costa-García Agustín
Published: August 2016

Nickel nanoflowers were electrodeposited on screen-printed carbon electrodes for the non-enzymatic catalytic detection of sugars.
Aqueous nickel sequestration and release during structural Fe(ii) hydroxide remediation: the roles of coprecipitation, reduction and substitution
Authors: Shao Binbin , Chen Ying , Wu Deli , He Hongping , Dai Chaomeng , Zhang Yalei
Published: August 2016

SFH has a strong potential for reducing aqueous Ni2+ and the release of precipitated Ni(ii) into solution could be controlled.
Low-voltage carbon films deposition by electro-exfoliation of graphite into graphene oxide
Authors: Sakita Alan M. P. , Valente Marco A. G. , Della Noce Rodrigo , Fugivara Cecílio S. , Magnani Marina , Benedetti Assis V.
Published: August 2016

Low-voltage carbon films deposition by electro-exfoliation of graphite into graphene oxide is reported.
Enhanced methanol sensing properties of SnO2 microspheres in a composite with Pt nanoparticles
Authors: Li Yuxiu , Deng Dongyang , Chen Nan , Xing Xinxin , Xiao Xuechun , Wang Yude
Published: August 2016

SnO2 microspheres in a composite with Pt nanoparticles (0, 0.5, 1.5, 2.5, 5.0 mol% Pt loading) were synthesized by a solvothermal method.
Plasmonic-ELISA: expanding horizons
Authors: Satija Jitendra , Punjabi Nirmal , Mishra Debasish , Mukherji Soumyo
Published: August 2016

Convergence of localized surface plasmon resonance of metal nanoparticles with classical ELISA has emerged as a new class of immunoassays,i.e.plasmonic ELISA, enabling biocatalysis mediated ultrasensitive naked-eye detection of disease biomarkers.
Fabrication of interdigitated micro-supercapacitor devices by direct laser writing onto ultra-thin, flexible and free-standing graphite oxide films
Authors: Kumar Rajesh , Savu Raluca , Joanni Ednan , Vaz Alfredo R. , Canesqui Mara A. , Singh Rajesh K. , Timm Ronaldo A. , Kubota Lauro T. , Moshkalev Stanislav A.
Published: August 2016

In this work we present graphene-based in-plane flexible interdigitated micro-supercapacitor devices fabricated through direct laser writing onto ultra-thin graphite oxide (GO) films.
An efficient strategy for the synthesis of 5-hydroxymethylfurfural derivative based poly(β-thioether ester) via thiol-Michael addition polymerization
Authors: Zhang Daihui , Dumont Marie-Josée , Cherestes Alice
Published: August 2016

A derivative of 5-hydroxymethylfurfural was synthesized for the thiol-Michael addition reaction.
Double-channel emission from gold nanoparticles functionalized with a thermo-responsive copolymer ligand: preparation, optical properties and control of catalytic activity
Authors: Wang Dongmei , Liu Bingxin , Lü Jianhua , Lü Changli
Published: August 2016

Double-channel-emitting gold nanoparticles functionalized with a thermo-responsive copolymer ligand containing an episulfide group show a controllable thermo-responsive catalytic reduction performance for 4-nitrophenol.
Polypyrrole coated PLGA core–shell nanoparticles for drug delivery and photothermal therapy
Authors: Liu Ming , Xu Na , Liu Wensen , Xie Zhigang
Published: August 2016

Core–shell PLGA@polypyrrole nanoparticls (PLGA@PPy NPS) were prepared for combination of photothermal therapy and chemotherapy.
New post-processing method of preparing nanofibrous SERS substrates with a high density of silver nanoparticles
Authors: Prikhozhdenko E. S. , Atkin V. S. , Parakhonskiy B. V. , Rybkin I. A. , Lapanje A. , Sukhorukov G. B. , Gorin D. A. , Yashchenok A. M.
Published: August 2016

The protocol to control density of AgNP on surfaces of nanofibers, and thus electromagnetic hotspots by variation of Tollens' reagent is established. Nanofiber films enable SERS either of solutes or macromolecular structures such as bacterial cells.
Hydrate formation in water-laden microcapsules for temperature-sensitive release of encapsulants
Authors: Park Juwoon , Lee Sang Seok , Sohn Young Hoon , Kim Shin-Hyun , Seo Yutaek
Published: August 2016

Water-laden microcapsules are designed to release encapsulants under the condition responsible for hydrate formation.
A 1,8-naphthalimide-based chemosensor for dual-mode sensing: colorimetric and fluorometric detection of multiple analytes
Authors: La Yeo-Kyung , Hong Jong-Ah , Jeong Yujin , Lee Jiyoun
Published: August 2016

A dual-mode sensor 1 demonstrated highly specific and sensitive signal changes to multiple analytes based on two distinct mechanisms.
Thermochemical conversion of CO2 into CH4 using oxygen deficient NiFe2O4−δ with unique selectivity
Authors: Liu Linyan , Cheng Yao , Liu Zhifu , Ha Minh Ngoc , Guo Qiangsheng , Zhao Zhe
Published: August 2016

NiFe2O4 nanoparticles with a high concentration of oxygen vacancies were synthesized via a solvothermal route.
Synthesis of fluorinated donepezil by palladium-catalyzed decarboxylative allylation of α-fluoro-β-keto ester with tri-substituted heterocyclic alkene and the self-disproportionation of its enantiomers
Authors: Maeno Mayaka , Kondo Hiroya , Tokunaga Etsuko , Shibata Norio
Published: August 2016

Catalytic asymmetric synthesis of fluorinated donepezil, a promising new therapeutic agent for Alzheimer's disease, was achieved.
Covalent triazine framework supported non-noble metal nanoparticles with superior activity for catalytic hydrolysis of ammonia borane: from mechanistic study to catalyst design
Authors: Li Zhao , He Teng , Liu Lin , Chen Weidong , Zhang Miao , Wu Guotao , Chen Ping
Published: August 2016

Development of non-noble metal catalysts with similar activity and stability to noble metals is of significant importance in the conversion and utilization of clean energies.
Organic solid fluorophores regulated by subtle structure modification: color-tunable and aggregation-induced emission
Authors: Zhang Jing Nan , Kang Hui , Li Nan , Zhou Shi Ming , Sun Hua Ming , Yin Shi Wei , Zhao Na , Tang Ben Zhong
Published: August 2016

Organic solid fluorophores based on p-bis(2,2-dicyanovinyl)benzene were designed and synthesized, which displayed a tunable emission color and substituent dependent optical behavior.
Two exfoliation approaches for organic layered compounds: hydrophilic and hydrophobic polydiacetylene nanosheets
Authors: Ishijima Yukiko , Okaniwa Mamoru , Oaki Yuya , Imai Hiroaki
Published: August 2016

Two versatile exfoliation approaches generate both hydrophilic and hydrophobic nanosheets from an organic layered compound.
Carbon dioxide binding at a Ni/Fe center: synthesis and characterization of Ni(η1-CO2-κC) and Ni-μ-CO2-κC:κ2O,O′-Fe
Authors: Yoo Changho , Lee Yunho
Published: August 2016

A heterobimetallic Ni-μ-CO2-κC:κ2O,O′-Fe species reminiscent of the CODH active site was synthesized, helping to elucidate the role of the unique iron.
Ultrasmall diiron phosphide nanodots anchored on graphene sheets with enhanced electrocatalytic activity for hydrogen production via high-efficiency water splitting
Authors: Huang Huawei , Yu Chang , Yang Juan , Han Xiaotong , Zhao Changtai , Li Shaofeng , Liu Zhibin , Qiu Jieshan
Published: August 2016

Active site-enriched Fe2P nanodots anchored on graphene sheets (Fe2P-ND/FG) exhibit enhanced catalytic activity and stability for the hydrogen evolution reaction.
A RhNiP/rGO hybrid for efficient catalytic hydrogen generation from an alkaline solution of hydrazine
Authors: Du Xiaoqiong , Tan Shiyi , Cai Ping , Luo Wei , Cheng Gongzhen
Published: August 2016

A transition metal phosphide based hybrid RhNiP/rGO has been synthesized through a simple one-pot co-reduction method, and further used as a highly efficient catalyst for catalytic dehydrogenation of hydrazine for the first time. This excellent catalytic performance is suggested to be attributed to the synergistic electronic effect between P and Rh–Ni nanoalloys after P doping.
Multifunctional high-activity and robust electrocatalyst derived from metal–organic frameworks
Authors: Zhang Erhuan , Xie Yu , Ci Suqin , Jia Jingchun , Cai Pingwei , Yi Luocai , Wen Zhenhai
Published: August 2016

The hybrid of cobalt nanoparticles embedded in N-rich carbon nanotubes (Co@NCNT) derived from a Co-based metal–organic framework exhibits outstanding multifunctional electrocatalytic performance toward a set of important electrochemical reactions.
On the chemical filler–polymer interaction of nano- and micro-sized ZIF-11 in PBI mixed matrix membranes and their application for H2/CO2separation
Authors: Sánchez-Laínez Javier , Zornoza Beatriz , Téllez Carlos , Coronas Joaquín
Published: August 2016

A study of the chemical filler–polymer interactions of micro- and nano-sized ZIF-11 in PBI polymer matrix and H2/CO2separation performance.
A cathode material for lithium-ion batteries based on graphitized carbon-wrapped FeF3 nanoparticles prepared by facile polymerization
Authors: Kim T. , Jae W. J. , Kim H. , Park M. , Han J.-M. , Kim J.
Published: August 2016

FeF3/graphitic carbon composites are successfully synthesized, showing high electrochemical performances as a cathode material for Li-ion batteries.
Cobalt and nickel selenide nanowalls anchored on graphene as bifunctional electrocatalysts for overall water splitting
Authors: Li Xiao , Zhang Li , Huang Meirong , Wang Shuying , Li Xinming , Zhu Hongwei
Published: August 2016

Co and Ni based selenide nanowalls have been prepared on a conductive graphene coated nickel mesh substrate and used as electrocatalysts for hydrogen generation and oxygen evolution. The bifunctional nanowalls manifest a low driven voltage and high structural stability for overall water splitting.
Antibacterial activity of graphene-based materials
Authors: Szunerits Sabine , Boukherroub Rabah
Published: August 2016

Current efforts in the formulation of graphene-based nanocomposites with antimicrobial and antibiofilm activities in fighting against bacterial targets are reviewed.
3D porous chitosan–alginate scaffolds promote proliferation and enrichment of cancer stem-like cells
Authors: Florczyk Stephen J. , Kievit Forrest M. , Wang Kui , Erickson Ariane E. , Ellenbogen Richard G. , Zhang Miqin
Published: August 2016

3D porous chitosan–alginate scaffolds promote proliferation and enrichment of cancer stem-like cells for various cell types including breast, liver, and prostate cancer.
PCL–PEG graft copolymers with tunable amphiphilicity as efficient drug delivery systems
Authors: Al Samad A. , Bethry A. , Koziolová E. , Netopilík M. , Etrych T. , Bakkour Y. , Coudane J. , El Omar F. , Nottelet B.
Published: August 2016

Efficient drug delivery systems are prepared, thanks to the fine-tuning of the amphiphilicity and architecture of PCL–PEG graft copolymers via a simple photochemical approach.
Room temperature spin valve effect in the NiFe/Gr–hBN/Co magnetic tunnel junction
Authors: Iqbal Muhammad Zahir , Siddique Salma , Hussain Ghulam , Iqbal Muhammad Waqas
Published: August 2016

Graphene and hexagonal boron nitride (hBN) have shown fascinating features in spintronics due to their metallic and tunneling behaviors, respectively. In this work, we report for the first time room temperature spin valve effect in NiFe/Gr–hBN/Co configuration.
Embedding vision‐based advanced driver assistance systems: a survey
Authors: Velez Gorka , Otaegui Oihana
Published: August 2016

Automated driving will have a big impact on society, creating new possibilities for mobility and reducing road accidents. Current developments aim to provide driver assistance in the form of conditional and partial automation. Computer vision, either alone or combined with other technologies such as radar or lidar, is one of the key technologies of advanced driver assistance systems (ADAS). The presence of vision technologies inside the vehicles is expected to grow as the automation levels increase. However, embedding a vision‐based driver assistance system supposes a big challenge due to the special features of vision algorithms, the existing constrains and the strict requirements that need to be fulfilled. The aim of this study is to show the current progress and future directions in the field of vision‐based embedded ADAS, bridging the gap between theory and practice. The different hardware and software options are reviewed, and design, development and testing considerations are discussed. Additionally, some outstanding challenges are also identified.
Research on slow‐scale bifurcation phenomenon of PFC cascade converter
Authors: Xu Ruidong , Zhang Yong , Wang Long , Chen Guipeng , Liu Shiming , Wen Huiqing
Published: August 2016

This study reports a new slow‐scale bifurcation phenomenon in linear frequency of power factor correction (PFC) cascade converters, which will offer a useful design reference for PFC power application. Compared with the resistive loads analysed before, the stability of PFC cascade converters is studied, which are more complex but practical. This study has introduced the research method that the secondary efficient point‐of‐load converter can be equivalent to a constant power load. Based on this method, the small‐signal model of the whole system is constructed and the characteristic equations are thus derived. Subsequently, the stable boundary is determined when the coefficients of the characteristic equations are positive according to Routh–Hurwitz stability criterion. Furthermore, the time‐domain waveforms and phase portraits between the output voltage and the inductor current are given according to numerical simulation and experimental results at different points. Meanwhile, the total harmonic distortion and the fast Fourier transform diagrams are compared to reveal the influence of the bifurcation phenomenon on power quality of the system. The results provide useful information of parameter space for the design and operation of the converter in the desired fundamental stable regime.
Mitarbeiter-Motivation: „Der gute Start einer Führungskraft ist unbezahlbar“
Authors: Kohrs Jens
Published: September 2016

Wenn der Klinikverbund Gesundheit Nord in Bremen Leitungsfunktionen neu besetzt, wird das große Rad gedreht. Amtseinführungen werden zu besonderen Veranstaltungen im Jahr. Jutta Dernedde, Geschäftsführerin Medizin, über gezielte Starthilfe, Führungskompetenz und Wertschätzung.
Self-interference polarization holographic imaging of a three-dimensional incoherent scene
Authors: Zhu Ziyi , Shi Zhimin
Published: August 2016

We present a self-interference polarization holographic imaging (Si-Phi) technique to capture the three-dimensional information of an incoherent scene in a single shot. The light from the scene is modulated by a polarization-dependent lens, and a complex-valued polarization hologram is obtained by measuring directly the polarization profile of the light at the detection plane. Using a backward-propagating Green's function, we can numerically retrieve the transverse intensity profile of the scene at any desired focus plane. We demonstrate experimentally our Si-Phi technique by imaging, in real time, three-dimensional mimicked incoherent scenes created by a fast spatial light modulator.
Improving the accuracy of admitted subacute clinical costing: an action research approach
Authors: Hakkennes Sharon , Arblaster Ross , Lim Kim
Published: August 2016

Objective
The aim of the present study was to determine whether action research could be used to improve the breadth and accuracy of clinical costing data in an admitted subacute setting

Methods
The setting was a 100-bed in-patient rehabilitation centre. Using a pre-post study design all admitted subacute separations during the 2011–12 financial year were eligible for inclusion. An action research framework aimed at improving clinical costing methodology was developed and implemented.

Results
In all, 1499 separations were included in the study. A medical record audit of a random selection of 80 separations demonstrated that the use of an action research framework was effective in improving the breadth and accuracy of the costing data. This was evidenced by a significant increase in the average number of activities costed, a reduction in the average number of activities incorrectly costed and a reduction in the average number of activities missing from the costing, per episode of care.

Conclusions
Engaging clinicians and cost centre managers was effective in facilitating the development of robust clinical costing data in an admitted subacute setting. Further investigation into the value of this approach across other care types and healthcare services is warranted.

What is known about this topic?
Accurate clinical costing data is essential for informing price models used in activity-based funding. In Australia, there is currently a lack of robust admitted subacute cost data to inform the price model for this care type.

What does this paper add?
The action research framework presented in this study was effective in improving the breadth and accuracy of clinical costing data in an admitted subacute setting.

What are the implications for practitioners?
To improve clinical costing practices, health services should consider engaging key stakeholders, including clinicians and cost centre managers, in reviewing clinical costing methodology. Robust clinical costing data has the potential to be used beyond mandatory reporting requirements; however, health services need to balance the cost of improving their costing data with the additional value obtained from that data.
Beyond clinical priority: what matters when making operational decisions about emergency surgical queues?
Authors: Fitzgerald Anneke , Wu Yong
Published: August 2016

Objective This paper describes the perceptions of operating theatre staff in Australia and The Netherlands regarding the influence of logistical or operational reasons that may affect the scheduling of unplanned surgical cases. It is proposed that logistical or operational issues can influence the priority determination of queue position of surgical cases on the emergency waiting list. Methods A questionnaire was developed and conducted in 15 hospitals across The Netherlands and Australia, targeting anaesthetists, managers, nurses and surgeons. Statistical analyses revolved around these four professional groups. Six hypotheses were then developed and tested based on the responses collected from the participants. Results There were significant differences in perceptions of logistics delay factors across different professional groups when patients were waiting for unplanned surgery. There were also significant differences among different groups when setting logistical priority factors for planning and scheduling unplanned cases. The hypotheses tests confirm these differences, and the findings concur with the paradigmatic differences mentioned in the literature. These paradigmatic differences among the four professional groups may explain some of the tensions encountered when making decisions about scheduling emergency surgical queues, and therefore should be taken into consideration for management of operating theatres. Conclusions Queue positions of patients waiting for unplanned surgery, or emergency surgery, are determined by medical clinicians according to clinicians’ indication of clinical priority. However, operating theatre managers are important in facilitating smooth operations when planning for emergency surgeries. It is necessary for surgeons to understand the logistical challenges faced by managers when requesting logistical priorities for their operations. What is known about the topic? Tensions exist about the efficient use of operating theatres and negotiating individual surgeon’s demands, especially between surgeons and managers, because in many countries surgeons only work in the hospital and not for the hospital. What does this paper add? The present study examined the logistical effects on functionality and purports the notion that, while recognising the importance of clinical precedence, logistical factors influence queue order to ensure efficient use of operating theatre resources. What are the implications for practitioners? The results indicate that there are differences in the perceptions of healthcare professionals regarding the sequencing of emergency patients. These differences may lead to conflicts in the decision making process about triaging emergency or unplanned surgical cases. A clear understanding of the different perceptions of different functional groups may help address the conflicts that often arise in practice.