bluuebunny/crossref_metadata_2025 huggingface dataset:
The correspondence between the conformational and chromophoric properties of amorphous conjugated polymers in mesoscale condensed systems
Authors: Wang Chun I , Hsu Chih H. , Hua Chi C.
Published: July 2017

For π-conjugated polymers, the notion of spectroscopic units or “chromophores” provides illuminating insights into the experimentally observed absorption/emission spectra and the mechanisms of energy/charge transfer.
A high performance and low-cost hole transporting layer for efficient and stable perovskite solar cells
Authors: Mahmud Md Arafat , Elumalai Naveen Kumar , Upama Mushfika Baishakhi , Wang Dian , Gonçales Vinicius R. , Wright Matthew , Xu Cheng , Haque Faiazul , Uddin Ashraf
Published: July 2017

A F4TCNQ doped FDT HTL based PSC demonstrates 75% higher device stability than a conventional Li-TFSI doped FDT based PSC.
Oxygen storage properties of hexagonal HoMnO3+δ
Authors: Świerczek Konrad , Klimkowicz Alicja , Nishihara Kengo , Kobayashi Shuntaro , Takasaki Akito , Alanizy Maleeha , Kolesnik Stanislaw , Dabrowski Bogdan , Seong Seungho , Kang Jeongsoo
Published: July 2017

Structural and oxygen content changes of hexagonal HoMnO3+δ manganite at the stability boundary in the perovskite phase have been studied by X-ray diffraction and thermogravimetry using in situ oxidation and reduction processes at elevated temperatures in oxygen and air.
Ionic diffusion and proton transfer in aqueous solutions of alkali metal salts
Authors: Cassone Giuseppe , Creazzo Fabrizio , Giaquinta Paolo V. , Sponer Jiri , Saija Franz
Published: July 2017

We report on a series ofab initiomolecular dynamics investigations on LiCl, NaCl, and KCl aqueous solutions under the effect of static electric fields.
On the critical role of the substrate: the adsorption behaviour of tetrabenzoporphyrins on different metal surfaces
Authors: Zhang Liang , Lepper Michael , Stark Michael , Menzel Teresa , Lungerich Dominik , Jux Norbert , Hieringer Wolfgang , Steinrück Hans-Peter , Marbach Hubertus
Published: July 2017

2HTPTBPs assemble into different supramolecular structures on different metal surfaces due to different molecule–substrate (molecule) interactions.
Infrared spectra and anharmonic coupling of proton-bound nitrogen dimers N2–H+–N2, N2–D+–N2, and 15N2–H+–15N2 in solid para-hydrogen
Authors: Liao Hsin-Yi , Tsuge Masashi , Tan Jake A. , Kuo Jer-Lai , Lee Yuan-Pern
Published: July 2017

The proton-bound nitrogen dimer, N2–H+–N2, and its isotopologues were investigated by means of vibrational spectroscopy.
Silver–gold alloy nanoparticles as tunable substrates for systematic control of ion-desorption efficiency and heat transfer in surface-assisted laser desorption/ionization
Authors: Lai Samuel Kin-Man , Cheng Yu-Hong , Tang Ho-Wai , Ng Kwan-Ming
Published: July 2017

Laser energy conversion that controls heat transfer and ion desorption was systematically managed by tuning the composition of Ag–Au nanoparticles.
How to obtain Pt(iv) complexes suitable for conjugation to nanovectors from the oxidation of [PtCl(terpyridine)]+
Authors: Gabano E. , Perin E. , Fielden C. , Platts J. A. , Gallina A. , Rangone B. , Ravera M.
Published: July 2017

Pt(ii)-Terpyridine complexes were oxidized with difficulty to Pt(iv) prodrugs, loaded onto silica nanovectors andin vitrotested for their antiproliferative properties.
Reactivity of N-heterocyclic carbene–pyridine palladacyclopentadiene complexes toward halogen addition. The unpredictable course of the reaction
Authors: Visentin Fabiano , Santo Claudio , Scattolin Thomas , Demitri Nicola , Canovese Luciano
Published: July 2017

Novel Pd(ii) complexes characterized by a ten term coordinative ring have been obtained when palladacyclopentadienyl complexes were reacted with I2. The rearrangement kinetics, and a computational study suggesting a plausible mechanism are reported.
Two hybrid lanthanide complexes exhibiting a large magnetocaloric effect and slow magnetic relaxation
Authors: Han Song-De , Li Jin-Hua , Liu Hao-Hao , Wang Guo-Ming
Published: July 2017

We report two isostructural lanthanide hybrid complexes. The Gd-compound exhibits a large magnetocaloric effect with −ΔSmaxm = 51.29 J kg−1 K−1, and the Dy-compound displays slow magnetic relaxation.
Phototoxicity of strained Ru(ii) complexes: is it the metal complex or the dissociating ligand?
Authors: Azar Daniel F. , Audi Hassib , Farhat Stephanie , El-Sibai Mirvat , Abi-Habib Ralph J. , Khnayzer Rony S.
Published: July 2017

This work exemplifies the potential potency of photochemically ejected ligands from strained Ru(ii) polypyridyl complexes used in photoactivated chemotherapy.
Triboelectric nanogenerators: providing a fundamental framework
Authors: Dharmasena R. D. I. G. , Jayawardena K. D. G. I. , Mills C. A. , Deane J. H. B. , Anguita J. V. , Dorey R. A. , Silva S. R. P.
Published: July 2017

A generic electromagnetic model for the working principles of triboelectric nanogenerators derived using Maxwell's equations, to a universally applicable framework.
Engineering micromyocardium to delineate cellular and extracellular regulation of myocardial tissue contractility
Authors: Ariyasinghe Nethika R. , Reck Caitlin H. , Viscio Alyssa A. , Petersen Andrew P. , Lyra-Leite Davi M. , Cho Nathan , McCain Megan L.
Published: July 2017

By engineering tunable myocardial microtissues, we established that matrix elasticity regulates contractility more strongly than matrix ligand and fibroblast : myocyte ratio.
Laser induced breakdown spectroscopy for quantitative analysis based on low-rank matrix approximations
Authors: Yi Cancan , Lv Yong , Xiao Han , Tu Shan
Published: July 2017

In this paper, a novel and quantitative LIBS analysis method based on a sparse low-rank matrix approximation via convex optimization is proposed.
Elemental bio-imaging of PEGylated NaYF4:Yb/Tm/Gd upconversion nanoparticles in mice by laser ablation inductively coupled plasma mass spectrometry to study toxic side effects on the spleen, liver and kidneys
Authors: Li Qing , Wang Zheng , Chen Yirui , Zhang Guoxia
Published: July 2017

The distribution of PEGylated NaYF4:Yb/Tm/Gd (PEG-UCNPs) and imaging in mice spleen, liver and kidney were examined by laser ablation inductively coupled plasma mass spectrometry.
Schizosaccharomyces pombe Grx4 regulates the transcriptional repressor Php4 via [2Fe–2S] cluster binding
Authors: Dlouhy Adrienne C. , Beaudoin Jude , Labbé Simon , Outten Caryn E.
Published: July 2017

Grx4 forms a cysteine-ligated [2Fe–2S] binding complex with the transcriptional repressor Php4 to regulate transcription of iron utilization genes.
CdTe nanoparticles decorated titania for dye sensitized solar cell: a novel co-sensitizer approach towards highly efficient energy conversion
Authors: Bhattacharya Sayantani , Datta Jayati
Published: July 2017

A hybrid TiO2–CdTe multi-layer matrix fabricated for validation in a dye sensitized solar cell (DSSC) operating with N3 dye as the sensitizer.
Possibility of a magnetic [BN fullerene:B6 cluster]− nanocomposite as a vehicle for the delivery of dapsone
Authors: Cano Ordaz J. , Chigo Anota E. , Salazar Villanueva M. , Castro M.
Published: July 2017

The dapsone interacting weakly with BNF (a) and functionalized BNF (b). Magnetism is induced in the molecule (c) by the BNF.
Fabrication of vanadium oxide, with different valences of vanadium, -embedded carbon fibers and their electrochemical performance for supercapacitor
Authors: Huang Guofang , Li Chunping , Sun XingWei , Bai Jie
Published: July 2017

Herein, composite materials, VxOy-embedded carbon fibers, were fabricated through a facile electrospinning method followed by calcination.
Neutron activation of In(iii) complexes with thiosemicarbazones leads to the production of potential radiopharmaceuticals for the treatment of breast cancer
Authors: Oliveira Alexandre A. , Franco Lucas L. , dos Santos Raquel G. , Perdigão Gabriele M. C. , da Silva Jeferson G. , Souza-Fagundes Elaine M. , Beraldo Heloisa
Published: July 2017

114mIn(iii) complexes with 2-acetylpyridine-derived thiosemicarbazones show potent cytotoxic activity.
Synthesis of phosphonosulfonic acid building blocks as linkers for coordination polymers
Authors: Beyer O. , Homburg T. , Albat M. , Stock N. , Lüning U.
Published: July 2017

Ten benzene based linkers containing sulfonic and phosphonic acids have been synthesized. One lanthanum MOF was isolated and characterized.
Synthesis and up-conversion photoluminescence properties of uniform monodisperse YbPO4:Ln3+ (Ln3+ = Er3+, Tm3+, Ho3+) hollow microspheres
Authors: Xu Zhenhe , Bi Yanfeng , Yu He , Lin Junying , Ding Fu , Sun Yaguang , Gao Yu
Published: July 2017

Uniform monodisperse YbPO4 hollow microspheres have been successfully synthesized via the combination of a facile homogeneous precipitation approach, an ion-exchange process, and a calcination process for the first time.
High magnetoresistance at low magnetic fields in self-assembled ZnO–Co nanocomposite films
Authors: Jedrecy N. , Hamieh M. , Hebert C. , Perriere J.
Published: July 2017

Very small ferromagnetic Co nanoclusters embedded in a crystalline ZnO matrix lead to high values of magnetoresistance with good field-sensitivity.
Defect induced p-type conductivity in zinc oxide at high temperature: electron paramagnetic resonance spectroscopy
Authors: Erdem Emre
Published: July 2017

It has been observed that the defect centers on the surface play a crucial role in the conductivity behavior of ZnO. Above 300 °C only surface defects can be visible in EPR spectra for ZnO nanocrystals which indicate p-type conductivity.
Polypyrrole–methylene blue nanoparticles as a single multifunctional nanoplatform for near-infrared photo-induced therapy and photoacoustic imaging
Authors: Vy Phan Thi Tuong , Bharathiraja Subramaniyan , Nguyen Van Tu , Moorthy Madhappan Santha , Manivasagan Panchanathan , Lee Kang Dae , Oh Junghwan
Published: July 2017

A novel contrast agent with broad NIR absorbing properties for combined photo-induced therapy and photoacoustic imaging.
Nanomaterials for photocatalytic hydrogen production: from theoretical perspectives
Authors: Bhatt Mahesh Datt , Lee Jae Sung
Published: July 2017

To overcome the increasing demand of energy worldwide and global warming due to CO2emissions from the use of traditional fuel sources, renewable and clean energy sources are in high demand.
Recent progress in the chemistry and biology of limonoids
Authors: Zhang Yuanyuan , Xu Hui
Published: July 2017

Significant limonoids: new isolated limonoids, and recent developments in the total chemical synthesis, and structural modifications of limonoids regarding the bioactivities have been summarised.
Hierarchically organized Li–Al-LDH nano-flakes: a low-temperature approach to seal porous anodic oxide on aluminum alloys
Authors: Mata D. , Serdechnova M. , Mohedano M. , Mendis C. L. , Lamaka S. V. , Tedim J. , Hack T. , Nixon S. , Zheludkevich M. L.
Published: July 2017

Li-LDH sealing is accounted for being highly competitive to standard hot-water sealing as referred to reduced treatment temperature and higher corrosion protection efficiency.
Engineered ferritin nanocages as natural contrast agents in magnetic resonance imaging
Authors: Nandwana V. , Ryoo S.-R. , Kanthala S. , Kumar A. , Sharma A. , Castro F. C. , Li Y. , Hoffman B. , Lim S. , Dravid V. P.
Published: July 2017

Here we report the development of a “natural” MRI contrast agent with tunable Fe loading and a magnetic core for magnetic resonance imaging.
Improved performance of immobilized lipase by interfacial activation on Fe3O4@PVBC nanoparticles
Authors: Chen Zhiming , Liu Leilei , Yang Renchun
Published: July 2017

An effective strategy for enhancement of catalytic activity and stability of immobilized lipase by interfacial activation on Fe3O4@polyvinylbenzyl chloride nanoparticles is proposed.
Synthesis, solution and solid-state fluorescence of 2-diethylaminocinchomeronic dinitrile derivatives
Authors: Ershov O. V. , Ievlev M. Yu. , Belikov M. Yu. , Naidenova A. I. , Maksimova V. N. , Tafeenko V. A.
Published: July 2017

A facile approach to the novel 2-diethylaminocinchomeronic dinitriles, which are found to be fluorescent both in solution and solid states, was developed.
Inhibition of H1N1 influenza virus by selenium nanoparticles loaded with zanamivir through p38 and JNK signaling pathways
Authors: Lin Zhengfang , Li Yinghua , Guo Min , Xiao Misi , Wang Changbing , Zhao Mingqi , Xu Tiantian , Xia Yu , Zhu Bing
Published: July 2017

Zanamivir is an effective drug for influenza virus infection, but strong molecular polarity and aqueous solubility limit its clinical application.
Transparent Na5Gd9F32:Er3+ glass-ceramics: enhanced up-conversion luminescence and applications in optical temperature sensors
Authors: Li Xiaoman , Cao Jiangkun , Hu Fangfang , Wei Rongfei , Guo Hai
Published: July 2017

New rare earth ion-doped nanocomposite materials, Na5Gd9F32:Er3+ glass-ceramics, were fabricated. Excited by 980 nm, the glass-ceramics present enhanced up-conversion emission and show good optical temperature sensing property.
Immobilized boronic acid for Suzuki–Miyaura coupling: application to the generation of pharmacologically relevant molecules
Authors: Martinez-Amezaga M. , Delpiccolo C. M. L. , Mata E. G.
Published: July 2017

An efficient Suzuki–Miyaura coupling of immobilized boronic acid for the generation of a variety of biaryl biologically interesting derivatives is reported.
Chemical space guided discovery of antimicrobial bridged bicyclic peptides against Pseudomonas aeruginosa and its biofilms
Authors: Di Bonaventura Ivan , Jin Xian , Visini Ricardo , Probst Daniel , Javor Sacha , Gan Bee-Ha , Michaud Gaëlle , Natalello Antonino , Doglia Silvia Maria , Köhler Thilo , van Delden Christian , Stocker Achim , Darbre Tamis , Reymond Jean-Louis
Published: July 2017

Here we used a new strategy for exploring the peptide chemical space to discover bicyclic antimicrobial peptides.
Investigation on the function of nonionic surfactants during compressed CO2-mediated periodic mesoporous organosilica formation
Authors: Wang Cheng , Zhang Mengnan , Li Wei , Huang Xin , Li Shuang , Luan Sen , Hou Xiaojian , Wang Qian
Published: July 2017

A systematic study on the formation of periodic mesoporous organosilicas by using different nonionic surfactants as templates with compressed CO2.
Highly permeable zeolite imidazolate framework composite membranes fabricated via a chelation-assisted interfacial reaction
Authors: Yang Libin , Wang Zhan , Zhang Jinglong
Published: July 2017

The preparation of high-permselectivity membranes is still a challenging task due to the limitations of conventional polymeric membranes.
Nitrogen-enriched polydopamine analogue-derived defect-rich porous carbon as a bifunctional metal-free electrocatalyst for highly efficient overall water splitting
Authors: Zhang Zheye , Yi Zhengran , Wang Juan , Tian Xin , Xu Pei , Shi Gaoquan , Wang Shuai
Published: July 2017

A carbon-based, bifunctional metal-free water splitting electrocatalyst is prepared using a nitrogen-enriched polydopamine analogue to produce defect-rich porous carbon, which exhibits superb catalytic activities for both the HER and the OER.
A general route to the synthesis of layer-by-layer structured metal organic framework/graphene oxide hybrid films for high-performance supercapacitor electrodes
Authors: Yu Dongbo , Ge Liang , Wei Xinlai , Wu Bin , Ran Jin , Wang Huanting , Xu Tongwen
Published: July 2017

A promising strategy is demonstrated for the syntheses of metal organic framework/graphene oxide hybrid films with highly ordered layer-by-layer architecture, and the derived hybrids exhibit remarkable energy storage performances.
Ion-selective copper hexacyanoferrate with an open-framework structure enables high-voltage aqueous mixed-ion batteries
Authors: Jiang Ping , Shao Hezhu , Chen Liang , Feng Jiwen , Liu Zhaoping
Published: July 2017

Non-flammable and low-cost aqueous batteries operating on “M+/N+-dual shuttles” (AMIB) offer great opportunities in large-scale utility grid applications.
Nitrogen-doped carbon nanocones encapsulating with nickel–cobalt mixed phosphides for enhanced hydrogen evolution reaction
Authors: Han Lei , Yu Tongwen , Lei Wen , Liu Wenwen , Feng Kun , Ding Yuanli , Jiang Gaopeng , Xu Pan , Chen Zhongwei
Published: July 2017

Nickel–cobalt mixed phosphides encapsulated into nitrogen-doped carbon nanocones have been successfully prepared through a facile ammonia-etching method followed by phosphidation treatment, which exhibit high electrocatalytic activity and excellent stability toward the hydrogen evolution reaction in both acidic and alkaline solutions.
Porphyrin based push–pull conjugates as donors for solution-processed bulk heterojunction solar cells: a case of metal-dependent power conversion efficiency
Authors: Mishra Ruchika , Regar Ramprasad , Singhal Rahul , Panini Piyush , Sharma Ganesh D. , Sankar Jeyaraman
Published: July 2017

We demonstrate here the effect of metals in the porphyrin core of a PBI–porphyrin conjugate on the power conversion efficiency.
Recent Developments of Manganese Complexes for Catalytic
Hydrogenation and Dehydrogenation Reactions
Authors: Maji Biplab , Barman Milan
Published: July 2017

Being the third most abundant transition metal in the Earth’s crust (after iron and titanium) and less toxic, reactions catalyzed by manganese are becoming very important. A large number of manganese complexes have been synthesized using bidentate and tridentate ligands. Such manganese complexes display excellent catalytic activities for various important organic transformations, such as hydrogenation, dehydrogenation, dehydrogenative coupling, transfer hydrogenation reactions, etc. In this short review, recent developments of such manganese-catalyzed reactions are presented.

1 Introduction

2 Well-Defined Manganese-Complex-Catalyzed Hydrogenation Reactions

2.1 Hydrogenation of Nitriles

2.2 Hydrogenation of Aldehydes and Ketones

2.3 Hydrogenation of Esters

2.4 Hydrogenation of Amides

2.5 Hydrogenation of Carbon Dioxide

3 Manganese-Catalyzed Dehydrogenation Reactions

3.1 Selective Dehydrogenation of Methanol

3.2 Dehydrogenative N-Formylation of Amines by Methanol

3.3 Dehydrogenative Coupling Reactions of Alcohols

3.4 Imine Synthesis via Dehydrogenative Coupling of Alcohols and Amines

3.5 Synthesis of N-Heterocycles via Dehydrogenative Coupling

4 Manganese-Catalyzed Dehydrogenation–Hydrogenation Cascades

4.1 N-Alkylation of Amines with Primary Alcohols

4.2 α-Alkylation of Ketones with Primary Alcohols

4.3 Transfer Hydrogenation of Ketones

5 Conclusion
Sonographic and Doppler Sonographic Diagnosis of Neonatal Ischemic Stroke
Authors: Deeg Karl-Heinz
Published: July 2017

Children are particularly at risk for stroke in the neonatal period. 1/3 of all strokes in children occur during the perinatal period. The incidence of perinatal stroke is 1:4000. A differentiation is made between ischemic stroke and hemorrhagic stroke. Ischemic strokes are caused by arterial occlusion due to thrombosis or embolism. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom is focal cerebral seizure during the first week of life. Therefore, stroke should be ruled out by diagnostic imaging in the case of any seizure in the first days of life. Although the diagnostic method of choice is MRI, it is not always available. Most neonatal ischemic strokes can be detected with high-resolution duplex ultrasound. On ultrasound, ischemic stroke appears as a wedge-shaped focal increase in echogenicity in the supply region of an artery, typically the middle cerebral artery. The corresponding arterial inflow can be visualized with duplex ultrasound and measured with spectral Doppler. Doppler ultrasound can be used to differentiate between complete occlusion and severe stenosis. The success of therapeutic measures can be determined in the further course with Doppler ultrasound on the basis of the recanalization of vessels and the morphological consequences of stroke (cyst formation due to liquefactive necrosis).
Highly efficient angularly resolving x-ray spectrometer optimized for absorption measurements with collimated sources
Authors: Šmíd M. , Gallardo González I. , Ekerfelt H. , Björklund Svensson J. , Hansson M. , Wood J. C. , Persson A. , Mangles S. P. D. , Lundh O. , Falk K.
Published: July 2017

Highly collimated betatron radiation from a laser wakefield accelerator is a promising tool for spectroscopic measurements. Therefore, there is a requirement to create spectrometers suited to the unique properties of such a source. We demonstrate a spectrometer which achieves an energy resolution of <5 eV at 9 keV (E∕ΔE>1800) and is angularly resolving the x-ray emission allowing the reference and spectrum to be recorded at the same time. The single photon analysis is used to significantly reduce the background noise. Theoretical performance of various configurations of the spectrometer is calculated by a ray-tracing algorithm. The properties and performance of the spectrometer including the angular and spectral resolution are demonstrated experimentally on absorption above the K-edge of a Cu foil backlit by a laser-produced betatron radiation x-ray beam.
Reduction in write error rate of voltage-driven dynamic magnetization switching by improving thermal stability factor
Authors: Shiota Yoichi , Nozaki Takayuki , Tamaru Shingo , Yakushiji Kay , Kubota Hitoshi , Fukushima Akio , Yuasa Shinji , Suzuki Yoshishige
Published: July 2017

In this study, we demonstrate voltage-driven dynamic magnetization switching for the write error rate (WER) of the order of 10−5. The largest voltage effect on the perpendicular magnetic anisotropy in Ta/(CoxFe100–x)80B20/MgO structure (x = 0, 10, 31, 51) is obtained for x = 31 after annealing at 250 °C. Based on investigations using perpendicularly magnetized magnetic tunnel junctions that have different (Co31Fe69)80B20 free layer thicknesses, we demonstrate that the improvement in the thermal stability factor is important to reduce the WER. Our results will facilitate the design of highly reliable, voltage–torque, magnetoresistive random access memory.
Transformational dynamics of BZO and BHO nanorods imposed by Y2O3 nanoparticles for improved isotropic pinning in YBa2Cu3O7-δ thin films
Authors: Gautam Bibek , Sebastian Mary Ann , Chen Shihong , Shi Jack , Haugan Timothy , Xing Zhongwen , Zhang Wenrui , Huang Jijie , Wang Haiyan , Osofsky Mike , Prestigiacomo Joseph , Wu Judy Z.
Published: July 2017

An elastic strain model was applied to evaluate the rigidity of the c-axis aligned one-dimensional artificial pinning centers (1D-APCs) in YBa2Cu3O7-δ matrix films. Higher rigidity was predicted for BaZrO3 1D-APCs than that of the BaHfO3 1D-APCs. This suggests a secondary APC doping of Y2O3 in the 1D-APC/YBa2Cu3O7-δ nanocomposite films would generate a stronger perturbation to the c-axis alignment of the BaHfO3 1D-APCs and therefore a more isotropic magnetic vortex pinning landscape. In order to experimentally confirm this, we have made a comparative study of the critical current density Jc (H, θ, T) of 2 vol.% BaZrO3 + 3 vol.%Y2O3 and 2 vol.%BaHfO3 + 3 vol.%Y2O3 double-doped (DD) YBa2Cu3O7-δ films deposited at their optimal growth conditions. A much enhanced isotropic pinning was observed in the BaHfO3 DD samples. For example, at 65 K and 9.0 T, the variation of the Jc across the entire θ range from θ=0 (H//c) to θ=90 degree (H//ab) is less than 18% for BaHfO3 DD films, in contrast to about 100% for the BaZrO3 DD counterpart. In addition, lower α values from the Jc(H) ∼ H-α fitting were observed in the BaHfO3 DD films in a large θ range away from the H//c-axis. Since the two samples have comparable Jc values at H//c-axis, the improved isotropic pinning in BaHfO3 DD films confirms the theoretically predicted higher tunability of the BaHfO3 1D-APCs in APC/YBa2Cu3O7-δ nanocomposite films.
Improved spatial separation of neutral molecules
Authors: Kienitz Jens S. , Długołęcki Karol , Trippel Sebastian , Küpper Jochen
Published: July 2017

We have developed and experimentally demonstrated an improved electrostatic deflector for the spatial separation of molecules according to their dipole-moment-to-mass ratio. The device features a very open structure that allows for significantly stronger electric fields as well as for stronger deflection without molecules crashing into the device itself. We have demonstrated its performance using the prototypical carbonyl sulfide molecule and we discuss opportunities regarding improved quantum-state-selectivity for complex molecules and the deflection of unpolar molecules.
Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods
Authors: Guo Peijun , Chang Robert P. H. , Schaller Richard D.
Published: July 2017

Hyperbolic metamaterials (HMMs) are artificially engineered optical media that have been used for light confinement, excited-state decay-rate engineering, and subwavelength imaging, due to their highly anisotropic permittivity and with it the capability of supporting high-k modes. HMMs in the infrared range can be conceived for additional applications such as free space communication, thermal engineering, and molecular sensing. Here, we demonstrate infrared HMMs comprised of periodic indium-tin-oxide nanorod arrays (ITO-NRAs). We show that the ITO-NRA-based HMMs exhibit a stationary epsilon-near-pole resonance in the near-infrared regime that is insensitive to the filling ratio, and a highly tunable epsilon-near-zero resonance in the mid-infrared range depending on the array periodicity. Experimental results are supported by finite-element simulations, in which the ITO-NRAs are treated both explicitly and as an effective hyperbolic media. Our work presents a low-loss HMM platform with favorable spectral tunability in the infrared range.
Design of a polarization-insensitive wideband tunable metamaterial absorber based on split semi-circle ring resonators
Authors: An Shaonan , Xu Haibing , Zhang Yulu , Wu Song , Jiang Jianjun , He Yun , Miao Ling
Published: July 2017

In this paper, a polarization-insensitive wideband tunable metamaterial absorber is designed and fabricated. The equivalent circuit model for the absorber has been proposed to describe its absorption phenomenon. The proposed absorber is constructed by a periodic array of unit, which contains four split semi-circle ring resonators with 90° rotated. The symmetric structure of the unit gives rise to polarization-insensitivity. Furthermore, the field distribution and the circuit model of the absorber are studied to demonstrate its absorption mechanism. Measurement results show that the proposed metamaterial absorber obtains a reflectivity of less than −10 dB covering 2.1–2.5 GHz and 3.1–6.8 GHz with the total thickness of 8.8 mm, and the reflectivity performance covering the spectrum from 3.1 GHz to 6.8 GHz could be adjusted by tuning the bias voltage on the PIN diodes.
Language and Slavery
Authors: Arends Jacques , Smith Norval , Carlin Eithne B. , de Haan Saskia , Bruyn Adrienne , van den Berg Margot
Published: July 2017

This posthumous work by Jacques Arends offers new insights into the emergence of the creole languages of Suriname including Sranantongo or Suriname Plantation Creole, Ndyuka, and Saramaccan, and the sociohistorical context in which they developed. Drawing on a wealth of sources including little known historical texts, the author points out the relevance of European settlements prior to colonization by the English in 1651 and concludes that the formation of the Surinamese creoles goes back further than generally assumed. He provides an all-encompassing sociolinguistic overview of the colony up to the mid-19th century and shows how ethnicity, language attitude, religion and location had an effect on which languages were spoken by whom. The author discusses creole data gleaned from the earliest sources and interprets the attested variation. The book is completed by annotated textual data, both oral and written and representing different genres and stages of the Surinamese creoles. It will be of interest to linguists, historians, anthropologists, literary scholars and anyone interested in Suriname.
Embodied motivations for abstract in and on constructions
Authors: Johansson Falck Marlene
Published: July 2017

This chapter investigates the relationship between abstract in and on constructions (i.e. grammatical form and meaning pairings (Langacker 1987: 409; Goldberg 2006: 3) and body-world knowledge. Abstract in and on instances retrieved from the British National Corpus (BNC) are analyzed to identify what types of abstract concepts are construed as containing entities (used with the English preposition/particle in) and what types of abstract concepts are construed as objects/supporting surfaces (used with the preposition/particle on). Analyses show that abstract in and on constructions fall into families of constructions that refer to related concepts, and that these, in turn, are connected with specific types of embodied experiences. Body-world knowledge thus provides a principled way of explaining the constructions.
Multimodal constructional resemblance
Authors: Zima Elisabeth
Published: July 2017

This chapter approaches the topic of constructional families by zooming in on five English motion constructions. Contrary to the traditional focus of Construction Grammar on verbal form-meaning pairings, the chapter discusses their multimodal dimension. A study in the NewsScape Library of Television News Broadcasts (Steen and Turner 2013) reveals that all five motion constructions studied therein show high co-occurrence rates with manner and path gestures. It is argued that according to the basic premises of Construction Grammar and the usage-based approach, co-speech motion gesture use is a defining part of these constructions. In support of this view, the chapter focuses on the influence of semantic readings, genre, and the broader discourse sequences’ degree of interactionality on co-speech motion gesture use.
“I Feel Like I've Hit the Bottom and have no Idea what to Do”: Supportive Social Networking on Reddit for Individuals with a Desire to Quit Cannabis Use
Authors: Sowles Shaina J. , Krauss Melissa J. , Gebremedhn Lewam , Cavazos-Rehg Patricia A.
Published: July 2017

Background

Online communities can provide social support to those in need and can foster personal empowerment for individuals experiencing distress. This study examines the content of a Reddit community dedicated to the support of people trying to quit using cannabis, in order to develop an understanding of the type of social networking occurring on this subreddit (e.g., community).

Methods

A total of 100 Reddit posts and their replies (i.e., comments) were collected from the subreddit on June 12, 2015. Posts were qualitatively coded for expression of DSM-5 ( Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) symptoms of cannabis use disorder (CUD) as well as other prominently featured themes. Comments on posts where individuals were seeking support/advice were also coded.

Results

Ninety-one people posted the 100 Reddit posts, and of those 35 (38%) people described enough symptoms to be classified as mild disorder severity, 15 (16%) moderate, and 11 (12%) severe, as outlined in the diagnostic criteria for CUD. Over half of posts ( n = 51) were seeking advice and/or support from members of the community. There were 174 comments made by 108 unique people on the advice/support seeking posts. Most were supportive/encouraging in nature (140, 80%) and gave advice to the post author (126, 72%).

Conclusions

This exploratory research highlights the potential of online communities as tools for individuals coping with addiction recovery, and future research should investigate if involvement in such communities would be a beneficial supplement to more traditional recovery practices.
Novel function of a dynein light chain in actin assembly during clathrin-mediated endocytosis
Authors: Farrell Kristen B. , McDonald Seth , Lamb Andrew K. , Worcester Colette , Peersen Olve B. , Di Pietro Santiago M.
Published: July 2017

Clathrin- and actin-mediated endocytosis is essential in eukaryotic cells. In this study, we demonstrate that Tda2 is a novel protein of the endocytic machinery necessary for normal internalization of native cargo in yeast. Tda2 has not been classified in any protein family. Unexpectedly, solving the crystal structure of Tda2 revealed it belongs to the dynein light chain family. However, Tda2 works independently of the dynein motor complex and microtubules. Tda2 forms a tight complex with the polyproline motif–rich protein Aim21, which interacts physically with the SH3 domain of the Arp2/3 complex regulator Bbc1. The Tda2–Aim21 complex localizes to endocytic sites in a Bbc1- and filamentous actin–dependent manner. Importantly, the Tda2–Aim21 complex interacts directly with and facilitates the recruitment of actin-capping protein, revealing barbed-end filament capping at endocytic sites to be a regulated event. Thus, we have uncovered a new layer of regulation of the actin cytoskeleton by a member of a conserved protein family that has not been previously associated with a function in endocytosis.
CENP-F couples cargo to growing and shortening microtubule ends
Authors: Kanfer Gil , Peterka Martin , Arzhanik Vladimir K. , Drobyshev Alexei L. , Ataullakhanov Fazly I. , Volkov Vladimir A. , Kornmann Benoît
Published: July 2017

Dynamic microtubule ends exert pulling and pushing forces on intracellular membranes and organelles. However, the mechanical linkage of microtubule tips to their cargoes is poorly understood. CENP-F is a nonmotor microtubule-binding protein that participates in microtubule binding at kinetochores and in the mitotic redistribution of the mitochondrial network. CENP-F–driven mitochondrial transport is linked to growing microtubule tips, but the underlying molecular mechanisms are unknown. Here we show that CENP-F tracks growing microtubule ends in living cells. In vitro reconstitution demonstrates that microtubule tips can transport mitochondria and CENP-F–coated artificial cargoes over micrometer-long distances during both growing and shrinking phases. Based on these and previous observations, we suggest that CENP-F might act as a transporter of mitochondria and other cellular cargoes by attaching them to dynamic microtubule ends during both polymerization and depolymerization of tubulin.
LET-99 functions in the astral furrowing pathway, where it is required for myosin enrichment in the contractile ring
Authors: Price Kari L. , Rose Lesilee S.
Published: July 2017

The anaphase spindle determines the position of the cytokinesis furrow, such that the contractile ring assembles in an equatorial zone between the two spindle poles. Contractile ring formation is mediated by RhoA activation at the equator by the centralspindlin complex and midzone microtubules. Astral microtubules also inhibit RhoA accumulation at the poles. In the Caenorhabditis elegans one-cell embryo, the astral microtubule–dependent pathway requires anillin, NOP-1, and LET-99. LET-99 is well characterized for generating the asymmetric cortical localization of the Gα-dependent force-generating complex that positions the spindle during asymmetric division. However, whether the role of LET-99 in cytokinesis is specific to asymmetric division and whether it acts through Gα to promote furrowing are unclear. Here we show that LET-99 contributes to furrowing in both asymmetrically and symmetrically dividing cells, independent of its function in spindle positioning and Gα regulation. LET-99 acts in a pathway parallel to anillin and is required for myosin enrichment into the contractile ring. These and other results suggest a positive feedback model in which LET-99 localizes to the presumptive cleavage furrow in response to the spindle and myosin. Once positioned there, LET-99 enhances myosin accumulation to promote furrowing in both symmetrically and asymmetrically dividing cells.
Large-scale phenomics analysis of a T-DNA tagged mutant population
Authors: Wu Hshin-Ping , Wei Fu-Jin , Wu Cheng-Chieh , Lo Shuen-Fang , Chen Liang-Jwu , Fan Ming-Jen , Chen Shu , Wen Ien-Chie , Yu Su-May , Ho Tuan-Hua David , Lai Ming-Hsin , Hsing Yue-ie C.
Published: July 2017

Rice, Oryza sativa L., is one of the most important crops in the world. With the rising world population, feeding people in a more sustainable and environmentally friendly way becomes increasingly important. Therefore, the rice research community needs to share resources to better understand the functions of rice genes that are the foundation for future agricultural biotechnology development, and one way to achieve this goal is via the extensive study of insertional mutants. We have constructed a large rice insertional mutant population in a japonica rice variety, Tainung 67. The collection contains about 93000 mutant lines, among them 85% with phenomics data and 65% with flanking sequence data. We screened the phenotypes of 12 individual plants for each line grown under field conditions according to 68 subcategories and 3 quantitative traits. Both phenotypes and integration sites are searchable in the Taiwan Rice Insertional Mutants Database. Detailed analyses of phenomics data, T-DNA flanking sequences, and whole-genome sequencing data for rice insertional mutants can lead to the discovery of novel genes. In addition, studies of mutant phenotypes can reveal relationships among varieties, cultivation locations, and cropping seasons.
Evaluating the effectiveness of real-time closures for reducing susceptibility of small fish to capture
Authors: Woods Pamela J , Þór Elvarsson Bjarki , Sigurdsson Thorsteinn , Stefánsson Gunnar
Published: July 2017

Real-time spatial management in fisheries, a type of dynamic ocean management, uses nearly real-time data collection and dissemination to reduce susceptibility of certain species or age classes to being caught in mixed fisheries. However, as with many fisheries regulations, it is difficult to assess whether such a regulation can produce tangible results on population dynamics. In this study, we take advantage of a rare opportunity in which data regarding real-time closures (RTCs) are available for 1990–2014 alongside annual estimates of fishing mortality for three species (Atlantic cod, haddock, and herring) and catch for four species (all plus saithe) in Icelandic fisheries management. We use time series analyses to assess whether RTCs work as expected and yield a lower susceptibility of small fish to being caught, indicated by lower catch levels and selectivities (as estimated from fishing mortalities) in years with more closures. Results indicate that haddock and herring followed this pattern, but only under conditions of generally high fishing mortality. This study represents the first time evidence has been presented that real-time fishery closures can have a beneficial effect on population dynamics, but also suggests that results differ among species.
Clinically significant mind–body interactions: evolutionary history of the scientific basis
Authors: Lal Mira
Published: July 2017

Mind-body interactions enshrined in the psychosomatic approach, encompass the psyche (mind) and the soma (body). They can result in obstetric and gynaecological disease conditions with clinically significant morbidity. Relevant psychosomatic understanding facilitates appropriate management. Chapter 1 discusses the anatomical, physiological, and pathological basis of clinical psychosomatic obstetrics and gynaecology, explores ancient medical practices throughout Asia and Europe, the change in approaches since the seventeenth century, and the future of psychosomatic medicine. Tracing medical history from ancient times shows the importance of time-tested methods of physical and mental assessments of patients by using good clinical observation, and appropriate knowledge for treating illnesses. Records of the clinical practices of Hippocrates, Soranus, and William Osler retell the medical philosophy, and ethics behind promoting healing of the body that could also involve restoring a healthy mind. By analysing the historical context of psychosomatic medicine, Chapter 1 brings into focus the rationale behind developing psychosomatic awareness in healthcare, and the fundamentals and basis of related healthcare. It introduces key aspects of psychosomatic medicine that feature in current practice, such as understanding the neuroendrocrinological milieu, which regulates the physiological changes from puberty to the menopause, and generates emotions, behaviour patterns or pain either generalised or specific, as when in labour. Psychosomatic issues will challenge futuristic clinicians' managing women's diseases.
Preconceptual to postpartum mental health: mental illness and psychosomatic disease
Authors: Lal Mira , Cantwell Roch
Published: July 2017

Chapter 4 examines the advancing field of mental health and psychosomatic disease from preconception to the postpartum period. The reader is reminded of the normal adaptation of different organ systems to pregnancy. This adaptation affects both physical and emotional functioning, and is further modified by the pregnant woman's social circumstances. The transition to the pathological or diseased condition may follow an exaggeration of the physiological alterations or could occur due to health conditions specific to pregnancy. This may result in manifestations due to mind-body interactions that cause psychosomatic disease. Common and unfamiliar psychosomatic clinical conditions associated with childbearing such as anxiety and mood disorders, eating disorders, hyperemesis gravidarum, and substance misuse are discussed, along with the unfamiliar, such as schizophrenia and seizures. Pregnancy-related acute-on-chronic psychosomatic presentations, besides those arising de novo in labour, are illustrated by vignettes representing real-life encounters. Controversies in management are debated to acquaint the less familiar with these clinical challenges, which require patient-centred care. Promoting health during childbearing not only pertains to the health of the mother, but also to the well-being of her infant. This entails concomitant attention to both in order to enhance the physical, mental and social health of the mother-infant dyad. An urgency for improved understanding of biopsychosocial initiating factors is reflected in an UK surveillance report, `Saving Lives Improving Mother's Care: It confirms the continuing fall in fatalities from 'direct' pregnancy-related physical causes, but a rise due to under-recognition of 'indirect' psychiatric causes that represent the psychosomatic interface.
Premenstrual disorders: luteal phase recurrent enigmatic conditions
Authors: Matsumoto Tamaki , Asakura Hiroyuki , Hayashi Tatsuya
Published: July 2017

Up to 90% of women of childbearing-age experience at least some degree of a regular recurrence of various physical and mental symptoms during the days prior to menstruation, which usually subside following menstruation. The cluster of symptoms can alter behaviour and well-being and affect family, friends, and relationships at work. Despite its prevalence, however, research has not yet demystified this enigmatic condition, commonly known as premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD)—severe PMS. Chapter 7 presents an exhaustive review that discusses the definition, diagnosis, prevalence, symptomatology, aetiopathogenesis, and therapeutic modalities of PMS/PMDD. It deliberates on the complex web of associated biopsychosocial factors. The discussion is further enhanced by presenting a real-life scenario of a sufferer with PMS who, in her dissatisfaction with the management provided, selected the option of surgical removal of her reproductive organs.
Reversal of Ticagrelor-Induced Arrhythmias and Cheyne–Stokes Respiration With Aminophylline Infusion
Authors: Conte Lorenzo , Pugliese Nicola R. , Giannoni Alberto
Published: July 2017

Dyspnea and bradyarrhythmias are frequent adverse effects (AEs) of ticagrelor. AEs commonly occur within the first week of therapy, are dose related and usually mild, but sometimes they may cause drug discontinuation. Currently, the exact mechanisms of ticagrelor-related AEs have not been definitively explained. In addition to the prevalent theory of adenosine overload, other reasonable mechanism like a direct central stimulation hypothesis was suggested. We present a case of incessant Cheyne–Stokes respiration associated with heart rate instability in patient with congestive heart failure and non–ST-segment elevation myocardial infarction, supporting the use of aminophylline as a potential reversal agent of ticagrelor-related AEs.
Corynebacterium striatum as an Unusual Case of Endocarditis in an Intravenous Drug User: Case Report and Review of the Literature
Authors: Hosseini Dehkordi Seyed Hamed , Lee Shawn , Aponte Johat , Stavropoulos Christine
Published: July 2017

A 59-year-old man, with a history of intravenous drug use, was admitted for 1 week of intermittent fever after a year of recurrent bouts of cellulitis. He quickly defervesced on empiric antibiotic therapy. Admission blood cultures were positive for Corynebacterium striatum as were wound cultures, which also grew methicillin-resistant Staphylococcus aureus and coagulase-negative Staphylococcus. A holosystolic murmur was heard. His transthoracic echocardiogram showed mitral valve prolapse, regurgitation, and a flail leaflet. The transesophageal echocardiogram revealed small perforations and a vegetation of the mitral valve. The endocarditis was successfully treated with surgical repair of the mitral valve and 6 weeks of intravenous vancomycin. Corynebacterium striatum is an unusual cause of endocarditis. It should not be dismissed as a contaminant in patients with risk factors for endocarditis.
Tubo-Ovarian Abscess Caused by Pasteurella multocida in a Young, Intrauterine Device–Wearing Woman Without Animal Contact
Authors: Pál Zoltán , Terhes Gabriella , Szűcs Márta , Urbán Edit
Published: July 2017

Tubo-ovarian abscesses are usually caused by anaerobic bacteria alone or in mixed infection. Here, we report about a successfully treated 29-year-old patient with bilateral tubo-ovarian abscess caused by Pasteurella multocida. She had no exposure to animals. After the removal of a 1-year-old copper-T intrauterine device at the time of hospitalization, total abdominal hysterectomy and bilateral salpingo-oophorectomy were performed by laparotomy because of the level of the inflammatory lesion of both ovaries. After the administration of antibiotic combination, the patient was discharged home on the fifth postoperative day. In the setting of a tubo-ovarian abscess, rare zoonotic pathogens, such as P. multocida, should also be considered as a causative agent of the infectious process even in the absence of direct or indirect contact with animals. It seems that the asymptomatic colonization of the vagina and the intrauterine device with P. multocida may happen also from unknown origin of the environment with the consequences of severe pelvic infection with tubo-ovarian abscess formation.