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Tânia Nobre, Manuela Oliveira, Birgit Arnholdt-Schmitt
By definition, the domestication process leads to an overall reduction of crop genetic diversity. This lead to the current search of genomic regions in wild crop relatives (CWR), an important task for modern carrot breeding. Nowadays massive sequencing possibilities can allow for discovery of novel genetic resources in wild populations, but this quest could be aided by the use of a surrogate gene (to first identify and prioritize novel wild populations for increased sequencing effort). Alternative oxidase (AOX) gene family seems to be linked to all kinds of abiotic and biotic stress reactions in various organisms and thus have the potential to be used in the identification of CWR hotspots of environment-adapted diversity...
2016: PloS One
Tonya L K Miller, Raymond Park, Lena S Sun
On April 16 and 17, 2016, the Pediatric Anesthesia and Neurodevelopment Assessment (PANDA) study held its fifth biennial symposium at the Morgan Stanley Children's Hospital of New York. The PANDA symposium has served as a key forum for clinicians, researchers, and other major stakeholders to gather and review the current state of preclinical and clinical research related to anesthetic neurotoxicity in children. Goals of the meeting included assessing how current knowledge has translated and impacted clinical care of patients who may be at risk, and future directions for research and policy...
October 2016: Journal of Neurosurgical Anesthesiology
Anders J Davidson, Lucas P Neff, Joseph J DuBose, James B Sampson, Christopher M Abbot, Timothy K Williams
Peripheral vascular injuries carry significant risk for permanent functional impairment, limb loss, and death. Definitive correction of these injuries requires significant operative time and has traditionally been resource and skill set intensive. In the initial surgical treatment of the physiologically depleted trauma patient, faster techniques may prove more appropriate. Damage control techniques, including vascular shunting, rapidly restore distal flow but require additional vascular intervention and risk shunt thrombosis with prolonged use...
November 2016: Journal of Trauma and Acute Care Surgery
Joshua F Wiley, Bei Bei, Julienne E Bower, Annette L Stanton
OBJECTIVES: Allostatic load (AL) represents cumulative wear-and-tear on the body and is operationalized as a multisystem index of biomarkers. Allostatic load is associated with morbidities and mortality, leading to a growing body of literature that uses AL as an outcome in its own right. Psychosocial resources (PSRs), such as mastery and social support, may influence health outcomes in part via AL, and the current review seeks to characterize the relations between PSRs and AL. METHODS: A systematic review was conducted by searching PubMed, CINAHL Plus, PsycINFO, Scopus, and Embase for studies examining the relation between PSR(s) and AL in humans...
October 20, 2016: Psychosomatic Medicine
David Geard, Peter Reaburn, Amanda Rebar, Rylee Dionigi
Global population aging has raised academic interest in successful aging to a public policy priority. Currently there is no consensus regarding the definition of successful aging. However, a synthesis of research shows successful aging can be defined as a late-life process of change characterized by high physical, psychological, cognitive, and social functioning. Masters athletes systematically train for, and compete in, organized forms of team and individual sport specifically designed for older adults. Masters athletes are often proposed as exemplars of successful aging...
October 21, 2016: Journal of Aging and Physical Activity
M Barbagallo, A Musumarra, L Cosentino, E Maugeri, S Heinitz, A Mengoni, R Dressler, D Schumann, F Käppeler, N Colonna, P Finocchiaro, M Ayranov, L Damone, N Kivel, O Aberle, S Altstadt, J Andrzejewski, L Audouin, M Bacak, J Balibrea-Correa, S Barros, V Bécares, F Bečvář, C Beinrucker, E Berthoumieux, J Billowes, D Bosnar, M Brugger, M Caamaño, M Calviani, F Calviño, D Cano-Ott, R Cardella, A Casanovas, D M Castelluccio, F Cerutti, Y H Chen, E Chiaveri, G Cortés, M A Cortés-Giraldo, S Cristallo, M Diakaki, C Domingo-Pardo, E Dupont, I Duran, B Fernandez-Dominguez, A Ferrari, P Ferreira, W Furman, S Ganesan, A García-Rios, A Gawlik, T Glodariu, K Göbel, I F Gonçalves, E González-Romero, E Griesmayer, C Guerrero, F Gunsing, H Harada, T Heftrich, J Heyse, D G Jenkins, E Jericha, T Katabuchi, P Kavrigin, A Kimura, M Kokkoris, M Krtička, E Leal-Cidoncha, J Lerendegui, C Lederer, H Leeb, S Lo Meo, S J Lonsdale, R Losito, D Macina, J Marganiec, T Martínez, C Massimi, P Mastinu, M Mastromarco, A Mazzone, E Mendoza, P M Milazzo, F Mingrone, M Mirea, S Montesano, R Nolte, A Oprea, A Pappalardo, N Patronis, A Pavlik, J Perkowski, M Piscopo, A Plompen, I Porras, J Praena, J Quesada, K Rajeev, T Rauscher, R Reifarth, A Riego-Perez, P Rout, C Rubbia, J Ryan, M Sabate-Gilarte, A Saxena, P Schillebeeckx, S Schmidt, P Sedyshev, A G Smith, A Stamatopoulos, G Tagliente, J L Tain, A Tarifeño-Saldivia, L Tassan-Got, A Tsinganis, S Valenta, G Vannini, V Variale, P Vaz, A Ventura, V Vlachoudis, R Vlastou, J Vollaire, A Wallner, S Warren, M Weigand, C Weiß, C Wolf, P J Woods, T Wright, P Žugec
The energy-dependent cross section of the ^{7}Be(n,α)^{4}He reaction, of interest for the so-called cosmological lithium problem in big bang nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron energy. The challenges posed by the short half-life of ^{7}Be and by the low reaction cross section have been overcome at n_TOF thanks to an unprecedented combination of the extremely high luminosity and good resolution of the neutron beam in the new experimental area (EAR2) of the n_TOF facility at CERN, the availability of a sufficient amount of chemically pure ^{7}Be, and a specifically designed experimental setup...
October 7, 2016: Physical Review Letters
Hugo Larocque, Frédéric Bouchard, Vincenzo Grillo, Alicia Sit, Stefano Frabboni, Rafal E Dunin-Borkowski, Miles J Padgett, Robert W Boyd, Ebrahim Karimi
Free electrons with a helical phase front, referred to as "twisted" electrons, possess an orbital angular momentum (OAM) and, hence, a quantized magnetic dipole moment along their propagation direction. This intrinsic magnetic moment can be used to probe material properties. Twisted electrons thus have numerous potential applications in materials science. Measuring this quantity often relies on a series of projective measurements that subsequently change the OAM carried by the electrons. In this Letter, we propose a nondestructive way of measuring an electron beam's OAM through the interaction of this associated magnetic dipole with a conductive loop...
October 7, 2016: Physical Review Letters
Zuojia Wang, Kan Yao, Min Chen, Hongsheng Chen, Yongmin Liu
Swift electrons moving closely parallel to a periodic grating produce far-field radiation of light, which is known as the Smith-Purcell effect. In this letter, we demonstrate that designer Babinet metasurfaces composed of C-aperture resonators offer a powerful control over the polarization state of the Smith-Purcell emission, which can hardly be achieved via traditional gratings. By coupling the intrinsically nonradiative energy bound at the source current sheet to the out-of-plane electric dipole and in-plane magnetic dipole of the C-aperture resonator, we are able to excite cross-polarized light thanks to the bianisotropic nature of the metasurface...
October 7, 2016: Physical Review Letters
Yaoyao Zhao, Zhenwei Wei, Hansen Zhao, Jia Jia, Zhenzhen Chen, Sichun Zhang, Zheng Ouyang, Xiaoxiao Ma, Xinrong Zhang
Current detection methods for paper-based analytical devices (PADs) rely on spectroscopic and electrochemical properties, which place special requirements on the analyte or need analyte labelling. Here, ion-transmission mass spectrometry (MS) was proposed for coupling with PADs to enable rapid in situ MS analysis of the sample on paper. The sample was analyzed directly on paper via analyte ionization by ions transmitted through the paper, generated by a low-temperature plasma probe. Prior to MS analysis, the sample can be separated by paper electrophoresis or by paper chromatography, among a variety of other features offered by PADs...
October 21, 2016: Analytical Chemistry
Jay A Labinger
Recent developments in C-H bond activation and functionalization by Pt complexes are surveyed. Topics include the following: fundamental mechanistic investigations of C-H activation; stoichiometric intra- and intermolecular C-H activation; reactions of dioxygen with Pt(II) complexes that may be relevant to substrate oxygenation; and both stoichiometric and catalytic formation of C-O, C-C, and C-B bonds via C-H activation. Current interests and trends are discussed, both in the context of historical work and to forecast future directions and opportunities for the field...
October 21, 2016: Chemical Reviews
Justin Chamberland, Annie Roy-Charland, Melanie Perron, Joël Dickinson
The perceptual-attentional limitation hypothesis posits that the confusion between emotional facial expressions of fear and surprise may be due to their visual similarity, with shared muscle movements. In Experiment 1 full face images of fear and surprise varying as a function of distinctiveness (mouth index, brow index or both indices) were displayed in a gender oddball task. Experiment 2, in a similar task, directed attention towards the eye or mouth region with a blurring technique. The current two studies used response time and event-related potentials (ERP) to test the perceptual-attentional limitation hypothesis...
October 21, 2016: Social Neuroscience
Andrew Kl Goey, Tristan M Sissung, Cody J Peer, William D Figg
The histone deacetylase inhibitor valproic acid (VPA) has been used for many decades in neurology and psychiatry. The more recent introduction of the histone deacetylase inhibitors (HDIs) belinostat, romidepsin and vorinostat for treatment of hematological malignancies indicates the increasing popularity of these agents. Belinostat, romidepsin and vorinostat are metabolized or transported by polymorphic enzymes or drug transporters. Thus, genotype-directed dosing could improve pharmacotherapy by reducing the risk of toxicities or preventing suboptimal treatment...
October 21, 2016: Pharmacogenomics
Francesco Giganti, Alessandro Ambrosi, Maria Chiara Petrone, Carla Canevari, Damiano Chiari, Annalaura Salerno, Paolo Giorgio Arcidiacono, Roberto Nicoletti, Luca Albarello, Elena Mazza, Francesca Gallivanone, Luigi Gianolli, Elena Orsenigo, Antonio Esposito, Carlo Staudacher, Alessandro Del Maschio, Francesco De Cobelli
OBJECTIVES: To compare the diagnostic performance of Magnetic Resonance (MR) and diffusion-weighted imaging (DWI), Multidetector Computed Tomography (MDCT), Endoscopic Ultrasonography (EUS) and (18)F-FDG (Fluorodeoxyglucose) Positron Emission Tomography - Computed Tomography (PET-CT) in the preoperative loco-regional staging of oesophageal cancer. METHODS: Eighteen patients with oesophageal or Siewert I tumour (9 directly treated with surgery and 9 addressed to chemo/radiotherapy before) underwent 1...
October 21, 2016: British Journal of Radiology
Tanja Macheiner, Vera Heike Ingeborg Fengler, Marlene Agreiter, Tobias Eisenberg, Frank Madeo, Dagmar Kolb, Berthold Huppertz, Richard Ackbar, Karine Sargsyan
In the course of mitochondrial diseases standard care mostly focuses on treatment of symptoms, while therapeutic approaches aimed at restoring mitochondrial function are currently still in development. The transfer of healthy or modified mitochondria into host cells would open up the possibilities of new cell therapies. Therefore, in this study, a novel method of mitochondrial transfer is proposed by anti-TOM22 magnetic bead-labeled mitochondria with the assistance of a magnetic plate. In comparison to the passive transfer method, the magnetomitotransfer method was more efficient at transferring mitochondria into cells (78-92% vs 0-17% over 3 days)...
October 21, 2016: Scientific Reports
K Malkiewicz, E Malkiewicz, K A Eaton, E Widström
Poland is one of the largest European countries in terms of area and population. The country's economic situation does not allow for the allocation of sufficient public funds for healthcare in general and oral healthcare in particular. The health policy of the state focuses primarily on prophylaxis and treatment of diseases, directly threatening the health and lives of the inhabitants. Currently, expenditure on oral health accounts for only 2.7% of the public funds allocated to healthcare. In this context, providing oral care financed from public funds at an appropriate level constitutes a challenge for state institutions, centres providing medical and dental services and private practices...
October 21, 2016: British Dental Journal
Mark Shepherd, Maud E S Achard, Adi Idris, Makrina Totsika, Minh-Duy Phan, Kate M Peters, Sohinee Sarkar, Cláudia A Ribeiro, Louise V Holyoake, Dimitrios Ladakis, Glen C Ulett, Matthew J Sweet, Robert K Poole, Alastair G McEwan, Mark A Schembri
Nitric oxide (NO) is a toxic free radical produced by neutrophils and macrophages in response to infection. Uropathogenic Escherichia coli (UPEC) induces a variety of defence mechanisms in response to NO, including direct NO detoxification (Hmp, NorVW, NrfA), iron-sulphur cluster repair (YtfE), and the expression of the NO-tolerant cytochrome bd-I respiratory oxidase (CydAB). The current study quantifies the relative contribution of these systems to UPEC growth and survival during infection. Loss of the flavohemoglobin Hmp and cytochrome bd-I elicit the greatest sensitivity to NO-mediated growth inhibition, whereas all but the periplasmic nitrite reductase NrfA provide protection against neutrophil killing and promote survival within activated macrophages...
October 21, 2016: Scientific Reports
Shehrin Sayed, Seokmin Hong, Supriyo Datta
It is experimentally established that charge current flowing in a channel with spin-momentum locking such as topological insulator surface states or Rashba interfaces induces a spin voltage, which can be electrically measured with a ferromagnetic contact along the current path. Using this fact in conjunction with Onsager reciprocity arguments, we make the surprising prediction that the anti-parallel resistance of a spin valve can be either larger or smaller than the parallel resistance depending on the direction of spin flow relative to the direction of spin-momentum locking...
October 21, 2016: Scientific Reports
Wang-Taek Hwang, Misook Min, Hyunhak Jeong, Dongku Kim, Jingon Jang, Daekyung Yoo, Yeonsik Jang, Jun-Woo Kim, Jiyoung Yoon, Seungjun Chung, Gyu-Chul Yi, Hyoyoung Lee, Gunuk Wang, Takhee Lee
We investigated the electrical characteristics and the charge transport mechanism of pentacene vertical hetero-structures with graphene electrodes. The devices are composed of vertical stacks of silicon, silicon dioxide, graphene, pentacene, and gold. These vertical heterojunctions exhibited distinct transport characteristics depending on the applied bias direction, which originates from different electrode contacts (graphene and gold contacts) to the pentacene layer. These asymmetric contacts cause a current rectification and current modulation induced by the gate field-dependent bias direction...
October 21, 2016: Nanotechnology
Himanshu Chaudhary, Aditya Iyer, Vinod Subramaniam, Mireille M A E Claessens
Phospholipid vesicles are commonly used to get insight into the mechanism by which oligomers of amyloidogenic proteins damage membranes. Oligomers of the protein α-synuclein (αS) are thought to create pores in phospholipid vesicles containing a high amount of anionic phospholipids but fail to damage vesicle membranes at lower surface charge densities. The current understanding of how αS oligomers damage membranes is thus incomplete. This incomplete understanding may, in part, result from the choice of model membrane systems...
October 21, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
Erik J Oerter, Alexei Perelet, Eric Pardyjak, Gabriel Bowen
RATIONALE: The fast and accurate measurement of H and O stable isotope compositions (δ(2) H and δ(18) O values) of soil and sediment pore water remains an impediment to scaling-up the application of these isotopes in soil and vadose hydrology. Here we describe a method and its calibration to measuring soil and sediment pore water δ(2) H and δ(18) O values using a water vapor-permeable probe coupled to an Isotope Ratio Infrared Spectroscopy analyzer. METHODS: We compare the water vapor probe method with a vapor direct equilibration method, and vacuum extraction with liquid water analysis...
October 20, 2016: Rapid Communications in Mass Spectrometry: RCM
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