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https://www.readbyqxmd.com/read/27906508/co2-capture-with-ionic-liquids-ils-and-deep-eutectic-solvents-dess-a-new-generation-of-sorbents
#1
Shokat Sarmad, Jyri-Pekka Mikkola, Xiaoyan Ji
High cost and high energy penalty for carbon dioxide (CO2) uptake from flue gases are important obstacles in large-scale industrial applications, and developing efficient technology for CO2 capture from technic and economic points is crucial. Ionic liquids (ILs) show the potential for CO2 separation due to their inherent advantages and have been proposed as alternatives in order to overcome the drawbacks of conventional sorbents. Chemical modification of ILs to improve their performance in CO2 absorption has received more attention...
December 1, 2016: ChemSusChem
https://www.readbyqxmd.com/read/27906502/using-our-hands-to-change-our-minds
#2
REVIEW
Susan Goldin-Meadow
Jean Piaget was a master at observing the routine behaviors children produce as they go from knowing less to knowing more about at a task, and making inferences not only about how children understand the task at each point, but also about how they progress from one point to the next. This article examines a routine behavior that Piaget overlooked-the spontaneous gestures speakers produce as they explain their solutions to a problem. These gestures are not mere hand waving. They reflect ideas that the speaker has about the problem, often ideas that are not found in that speaker's talk...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27906492/taming-metal-fluorine-carbenoids
#3
Sebastian Molitor, Kai-Stephan Feichtner, Viktoria H Gessner
While Li/Cl carbenoids are versatile reagents in organic synthesis, the controlled handling of the extremely reactive and labile M/F carbenoids remains a challenge. We now show that even these compounds can be stabilized and isolated in solid state as well as in solution. Particularly the sodium and potassium com¬pounds exhibit a remarkable stability, thus allowing the first isolation of a room temperature stable fluorine carbenoid. Spectro¬scopic as well as DFT studies confirm the pronounced carbenoid character, showing M-F-C interactions with elongated C-F bonds...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906486/the-fractional-occupation-number-weighted-density-as-a-versatile-analysis-tool-for-molecules-with-a-complicated-electronic-structure
#4
Christoph Alexander Bauer, Andreas Hansen, Stefan Grimme
The fractional occupation number weighted density (FOD) analysis is explored as a general theoretical diagnostic for complicated electronic structures. Its main feature is to provide robustly and fast the information where 'hot' (strongly correlated and chemically active) electrons are localized in a molecule. We demonstrate its usage in four different prototypical applications: (i) As a new and fast measure for the biradical character of polycyclic aromatic hydrocarbons, (ii) for the selection of active orbital spaces in multiconfigurational or complete active space self consistent field (MCSCF/CASSCF) treatments, (iii) as a possibility to consistently describe molecular energy landscapes in regions with varying biradical character as exemplified by partial double bond torsions, and (iv) as a powerful visualization method for static electron correlation effects in large biomolecules in connection with an efficient semi-empirical tight-binding molecular orbital scheme...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906484/a-ligand-free-pt3-cluster-catalyses-the-markovnikov-hydrosilylation-of-alkynes-with-up-to-106-turnover-frequencies
#5
Avelino Corma, Antonio Leyva, Miguel Angel Rivero
The Pt-catalysed hydrosilylation of alkynes is the procedure of choice to obtain vinylsilanes, and this is claimed to be the most relevant application of Pt in organic synthesis. More than half a century after its discovery, only -vinylsilanes (anti-Markovnikov addition) are obtained with simple Pt catalysts, while -vinylsilanes (Markovnikov addition) remain elusive compounds. Here we report that Pt3 clusters, in part-per-million (ppm) amounts, catalyse the Markovnikov hydrosilylation of terminal alkynes to give a wide variety of -vinylsilanes in reasonable isolated yields and with turnover frequencies that can reach up to one million per hour...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906479/knowledge-and-practice-in-cardiovascular-disease-prevention-among-hospital-registered-nurses-a-cross-sectional-study
#6
Shu Ding, Ying Deng, Sai Lu, Karen V Lamb, Ying Zhang, Ying Wu
AIMS AND OBJECTIVES: To investigate the knowledge and clinical practices of cardiovascular disease (CVD) prevention among registered nurses (RNs) who worked on three major clinical units in Beijing hospitals. BACKGROUND: Health education on CVD prevention is an important component of nursing practice, however, Chinese RNs' knowledge and practice patterns have been poorly explored in previous studies. DESIGN: A cross-sectional study. METHODS: A stratified random sample of three hundred RNs was recruited from two tertiary hospitals in Beijing, China...
December 1, 2016: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/27906458/autologous-stem-cell-transplantation-for-adult-acute-myelocytic-leukemia-in-first-remission-better-outcomes-after-busulfan-and-melphalan-compared-with-busulfan-and-cyclophosphamide-a-retrospective-study-from-the-acute-leukemia-working-party-of-the-european
#7
Norbert-Claude Gorin, Myriam Labopin, Tomasz Czerw, Thomas Pabst, Didier Blaise, Pierre-Yves Dumas, Damir Nemet, William Arcese, Silvia Maria Trisolini, Depei Wu, Anne Huynh, Tsila Zuckerman, Ellen Meijer, Seckin Cagirgan, Jan Cornelissen, Mohamed Houhou, Emmanuelle Polge, Mohamad Mohty, Arnon Nagler
BACKGROUND: Autologous stem cell transplantation (ASCT) for adult acute myelogenous leukemia (AML) is a valid therapeutic option for patients with good-risk and intermediate-risk disease. The authors used the registry of the European Society for Blood and Marrow Transplantation to compare combined busulfan and melphalan (BUMEL) with combined busulfan and cyclophosphamide (BUCY) before transplantation. METHODS: From 2005 to 2013, 853 patients with available cytogenetics underwent ASCT in first remission, including 257 after receiving BUMEL and 596 after receiving BUCY...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27906447/validation-of-the-parental-facilitation-of-mastery-scale-ii
#8
Alyson K Zalta, Kelly M Allred, Eranda Jayawickreme, Laura E R Blackie, Dianne L Chambless
To develop a more reliable and comprehensive version of the Parental Facilitation of Mastery Scale (PFMS) METHOD: In Study 1, 387 undergraduates completed an expanded PFMS (PFMS-II) and measures of parenting, perceived control, responses to early life challenges, and psychopathology. In Study 2, 182 trauma-exposed community participants completed the PFMS-II and measures of perceived control, psychopathology, and well-being RESULTS: In Study 1, exploratory factor analysis of the PFMS-II revealed two factors...
December 1, 2016: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/27906446/study-on-adhesion-proliferation-and-differentiation-of-osteoblasts-promoted-by-new-absorbable-bioactive-glass-injection-in-vitro
#9
A Axrap, J Wang, Y Liu, M Wang, A Yusuf
OBJECTIVE: The objective of this study was to evaluate adhesion, proliferation and differentiation of osteoblasts grown on absorbable bioactive glass-calcium phosphate cement injection (BG-CPC) materials in vitro. MATERIALS AND METHODS: BG-CPC composite biomaterial samples were prepared in vitro, for culture with MC3T3-E1 rat osteoblasts. Cells were divided into CPC, BG and BG-CPC treated groups. After cultivation for 3d, cells were stained with rhodamine-phalloidin and 4',6-diamidino-2-phenylindole (DAPI) and observed by fluorescence microscopy for osteoblast morphology on the surface of biomaterials...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27906436/iliac-crest-bone-graft-a-23-years-hystory-of-infection-at-donor-site-in-vertebral-arthrodesis-and-a-review-of-current-bone-substitutes
#10
L Babbi, G Barbanti-Brodano, A Gasbarrini, S Boriani
OBJECTIVE: This is an exemplary case report underlining a relevant morbidity which could be associated to the use of autologous iliac crest bone graft (ICBG) for spine fusion. CASE REPORT: Starting from 1990, a 25-years-old woman underwent two subsequent surgical treatments for non-Hodgkin lymphoma vertebral localizations. In the second surgery, arthrodesis was obtained with autograft through right posterior iliac crest osteotomy. During the chemotherapy treatment following the surgery, the patient suffered from infection at posterior iliac crest scar, the site of previous graft, caused by methicillin-resistant Staphylococcus aureus...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27906422/infective-endocarditis-a-word-of-caution-on-non-typical-bacteria
#11
K Giannakopoulos, C Zompolou, M Behnes, E Elmas, M Borggrefe, I Akin
A previously healthy 52-year-old man presented to our department with remitting and relapsing fever for more than 6 weeks. During complex staged work-up, we revealed that he suffered from an Abiotrophia defectiva endocarditis of the mitral valve with mitral regurgitation and vegetation requiring mitral valve replacement. He recovered well postoperatively and is currently being followed at our Outpatient Cardiology Clinic.
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27906412/multiple-cluster-axis-ii-comorbidity-and-functional-outcome-in-severe-patients-with-borderline-personality-disorder
#12
Nerea Palomares, Antonia McMaster, Marina Díaz-Marsá, Irene de la Vega, Ana Montes, José Luis Carrasco
BACKGROUND: Current literature suggests that personality disorder comorbidity negatively contributes to both the severity and prognosis of other disorders; however, little literature has been devoted to its influence on borderline personality disorder (BPD). The objective of the present work is to study comorbidity with other personality disorders in a severe clinical sample of patients with BPD, and its relationship with global functionality. METHODS: A sample of 65 patients with severe borderline personality disorder was included in the study...
November 2016: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/27906402/one-step-synthesis-of-ultrathin-ptxpb-nerve-like-nanowires-as-robust-catalysts-for-enhanced-methanol-electrooxidation
#13
Liang Huang, Yujie Han, Xueping Zhang, Youxing Fang, Shaojun Dong
Ultrathin PtxPb nerve-like nanowires (NNWs) with a diameter of only around 3.6 nm were synthesized by a one-step wet-chemical strategy, and they served as robust catalysts for greatly enhancing methanol electrooxidation both under acidic and alkaline conditions. Due to the high CO-poisoning tolerance, superior electrocatalytic activity and stability endowed by the Pt-Pb alloyed composition and the unique structure, the Pt3.5Pb NNWs showed the highest specific activity of 2.78 mA cm(-2) in acidic media and 6...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27906383/an-improved-model-of-homogeneous-nucleation-for-high-supersaturation-conditions-aluminum-vapor
#14
A M Savel'ev, A M Starik
A novel model of stationary nucleation, treating the thermodynamic functions of small clusters, has been built. The model is validated against the experimental data on the nucleation rate of water vapor obtained in a broad range of supersaturation values (S = 10-120), and, at high supersaturation values, it reproduces the experimental data much better than the traditional classical nucleation model. A comprehensive analysis of the nucleation of aluminum vapor with the usage of developed stationary and non-stationary nucleation models has been performed...
December 1, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27906354/anticrossing-double-fano-resonances-generated-in-metallic-dielectric-hybrid-nanostructures-using-nonradiative-anapole-modes-for-enhanced-nonlinear-optical-effects
#15
Wu-Chao Zhai, Tie-Zhu Qiao, Dong-Jin Cai, Wen-Jie Wang, Jing-Dong Chen, Zhi-Hui Chen, Shao-Ding Liu
Third-harmonic generation with metallic or dielectric nanoparticles often suffer from, respectively, small modal volumes and weak near-field enhancements. This study propose and demonstrate that a metallic/dielectric hybrid nanostructure composed of a silver double rectangular nanoring and a silicon square nanoplate can be used to overcome these obstacles for enhanced third-harmonic generation. It is shown that the nonradiative anapole mode of the Si plate can be used as a localized source to excite the dark subradiant octupole mode of the Ag ring, and the mode hybridization leads to the formation of an antibonding and a bonding subradiant collective mode, thereby forming anticrossing double Fano resonances...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906326/improving-the-luminescence-enhancement-of-hybrid-au-nanoparticle-monolayer-mos-sub-2-sub-by-focusing-radially-polarized-beams
#16
Di Liu, Le Yu, Xiao Xiong, Lei Yang, Yan Li, Ming Li, Hai-Ou Li, Gang Cao, Ming Xiao, Bin Xiang, Chang-Jun Min, Guang-Can Guo, Xi-Feng Ren, Guo-Ping Guo
Monolayer transition-metal dichalcogenides (TMDs) have grown as fantastic building blocks for optoelectronic applications, owing to their direct band gap, transparency, and mechanical flexibility. Since the luminescence of monolayer TMDs suffers from low light absorption and emission, surface plasmons, which confine light at subwavelength and enhance the local electric field, are utilized to boost both excitation and emission fields of TMDs, enabling strong light-matter interaction at the nano-scale. Meanwhile, radially-polarized beams (RPBs) as new and attractive excitation source have found many applications in surface plasmon polaritons, optical tweezer and so on...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906316/ring-modulators-with-enhanced-efficiency-based-on-standing-wave-operation-on-a-field-matched-interdigitated-p-n-junction
#17
Fabio Pavanello, Xiaoge Zeng, Mark T Wade, Miloš A Popović
We propose ring modulators based on interdigitated p-n junctions that exploit standing rather than traveling-wave resonant modes to improve modulation efficiency, insertion loss and speed. Matching the longitudinal nodes and antinodes of a standing-wave mode with high (contacts) and low (depletion regions) carrier density regions, respectively, simultaneously lowers loss and increases sensitivity significantly. This approach permits further to relax optical constraints on contacts placement and can lead to lower device capacitance...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906302/bichromatic-homodyne-detection-of-broadband-quadrature-squeezing
#18
Christopher S Embrey, Joshua Hordell, Plamen G Petrov, Vincent Boyer
We experimentally study a homodyne detection technique for the characterization of a quadrature squeezed field where the correlated bands, here created by four-wave mixing in a hot atomic vapor, are separated by a large frequency gap of more than 6 GHz. The technique uses a two-frequency local oscillator to detect the fluctuations of the correlated bands at a frequency accessible to the detection electronics. Working at low detection frequency, the method allows for the determination of both the amplitude and the phase of the squeezing spectrum...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906284/electrically-reconfigurable-split-ring-resonator-covered-by-nematic-liquid-crystal-droplet
#19
Kepeng Qiu, Ning Jia, Zijun Liu, Chen Wu, Yuancheng Fan, Quanhong Fu, Fuli Zhang, Weihong Zhang
In this paper, an electrically reconfigurable split ring resonator (SRR) covered by sessile droplet of nematic liquid crystal (LC) is demonstrated experimentally. The magnetic resonance of single SRR decreases gradually by 237 MHz as external bias voltage is applied, resulting from increasing fringing capacitance due to liquid crystal molecular reorientation along local electric field distribution. The transmission phase can be modulated by more than 100 degrees. Furthermore, frequency tuning range of SRR increases with the droplet height, because of the significant enhancement for SRR capacitance difference between LC states with/without bias voltage...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906271/two-types-of-single-beam-deflection-and-asymmetric-transmission-in-photonic-structures-without-interface-corrugations
#20
Andriy E Serebryannikov, Evrim Colak, Thore Magath, Ekmel Ozbay
We study single-beam deflection and asymmetry in transmission, two aspects of the same phenomenon that appear in the topologically simple, nonsymmetric, photonic crystal (PhC)-based structures without corrugations at the interfaces. Strong diffractions enabling efficient blazing, i.e., redistribution of the incident wave energy in favor of the desired higher diffraction order(s), can be achieved owing to the defect-like layer(s) embedded in a regular slab of PhC. The main features, together with the peculiarities of the two basic transmission types and relevant coupling and deflection scenarios, are discussed, for one of which a part of the PhC works in the evanescent-wave regime...
December 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
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