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https://www.readbyqxmd.com/read/28092750/assessing-common-birds-ecological-requirements-to-address-nature-conservation-in-permanent-crops-lessons-from-italian-vineyards
#1
Giacomo Assandri, Giuseppe Bogliani, Paolo Pedrini, Mattia Brambilla
Viticulture has contributed to shaping cultural landscapes in several regions across all continents. Recent farming intensification is causing landscape homogenization and biodiversity loss in several of those areas, but knowledge about the impacts on biodiversity in vineyards is still scarce. Simplified agro-ecosystems resulting from intensification host mainly generalist and common species, which still play a key role in the regulation of ecosystems and in the provision of ecosystem services. We assessed the abundance of 11 common bird species at 47 linear transects in a vineyard-dominated landscape in Trentino (NE Italy), in both spring and winter, and analysed abundance variation in relation to three independent groups of predictors: landscape, management, and topographic-climatic variables...
January 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28090791/additive-value-of-otosclerosis-weighted-images-for-the-ct-diagnosis-of-fenestral-otosclerosis
#2
Koji Yamashita, Akio Hiwatashi, Osamu Togao, Masatoshi Kondo, Kazufumi Kikuchi, Takashi Inoguchi, Junki Maehara, Yusuke Kyuragi, Hiroshi Honda
Background Otosclerotic foci are usually seen as minute low-density lesions and this may be attributed to relatively low sensitivity on visual assessment using computed tomography (CT). Otosclerotic foci can be detected by using the accurate region of interest (ROI) setting, while small ROI settings by less-experienced radiologists may result in false negative findings. Purpose To evaluate the diagnostic ability of our proposed method ("otosclerosis-weighted" imaging [OWI]), which is based on reversing the density, compared with conventional CT (CCT) imaging alone...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28089497/biomechanical-comparison-of-standard-and-linked-single-row-rotator-cuff-repairs-in-a-human-cadaver-model
#3
Adam F Meisel, Heath B Henninger, F Alan Barber, Mark H Getelman
PURPOSE: The purpose of this study was to evaluate the time zero cyclic and failure loading properties of a linked single-row rotator cuff repair compared with a standard simple suture single-row repair using triple-loaded suture anchors. METHODS: Eighteen human cadaveric shoulders from 9 matched pairs were dissected, and full-thickness supraspinatus tears were created. The tendon cross-sectional area was recorded. In each pair, one side was repaired with a linked single-row construct and the other with a simple suture single-row construct, both using 2 triple-loaded suture anchors...
January 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28089381/pet-ct-underlying-physics-instrumentation-and-advances
#4
I Torres Espallardo
Since it was first introduced, the main goal of PET/CT has been to provide both PET and CT images with high clinical quality and to present them to radiologists and specialists in nuclear medicine as a fused, perfectly aligned image. The use of fused PET and CT images quickly became routine in clinical practice, showing the great potential of these hybrid scanners. Thanks to this success, manufacturers have gone beyond considering CT as a mere attenuation corrector for PET, concentrating instead on design high performance PET and CT scanners with more interesting features...
January 12, 2017: Radiología
https://www.readbyqxmd.com/read/28089254/volumetric-analysis-of-carotid-plaque-components-and-cerebral-microbleeds-a-correlative-study
#5
Luca Saba, Roberto Sanfilippo, Michele di Martino, Michele Porcu, Roberto Montisci, Pierleone Lucatelli, Michele Anzidei, Marco Francone, Jasjit S Suri
PURPOSE: The purpose of this work was to explore the association between carotid plaque volume (total and the subcomponents) and cerebral microbleeds (CMBs). MATERIALS AND METHODS: Seventy-two consecutive (male 53; median age 64) patients were retrospectively analyzed. Carotid arteries were studied by using a 16-detector-row computed tomography scanner whereas brain was explored with a 1.5 Tesla system. CMBs were studied using a T2*-weighted gradient-recalled echo sequence...
January 11, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28088928/multi-modal-mri-investigation-of-volumetric-and-microstructural-changes-in-the-hippocampus-and-its-subfields-in-mild-cognitive-impairment-alzheimer-s-disease-and-dementia-with-lewy-bodies
#6
Elijah Mak, Silvy Gabel, Li Su, Guy B Williams, Robert Arnold, Luca Passamonti, Patricia Vazquez Rodríguez, Ajenthan Surendranathan, W Richard Bevan-Jones, James B Rowe, John T O'Brien
BACKGROUND: Volumetric atrophy and microstructural alterations in diffusion tensor imaging (DTI) measures of the hippocampus have been reported in people with Alzheimer's disease (AD) and mild cognitive impairment (MCI). However, no study to date has jointly investigated concomitant microstructural and volumetric changes of the hippocampus in dementia with Lewy bodies (DLB). METHODS: A total of 84 subjects (23 MCI, 17 DLB, 14 AD, and 30 healthy controls) were recruited for a multi-modal imaging (3T MRI and DTI) study that included neuropsychological evaluation...
January 16, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28087976/the-role-of-diode-array-ultraviolet-detection-for-the-identification-of-synthetic-cathinones
#7
Walter F Rowe, Ioan Marginean, Stephanie Carnes, Ira S Lurie
The utility of diode array UV detection for aiding in the identification of synthetic cathinones, including different sub classes and positional isomers is presented. For 35 synthetic cathinones' unique UV spectra are obtained for seven sub classes including mostly beta ketones, where position and type of substitution on benzene rings give rise to differences in UV maxima and relative intensity of the spectral bands. This aspect is key to distinguishing positional isomers which contain differences in R substitution (mono and di) around the benzene ring, which provides complementary information to electron ionization mass spectrometry, where the latter technique cannot distinguish between these types of positional isomers...
January 14, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28087327/ige-cross-linking-impairs-monocyte-antiviral-responses-and-inhibits-influenza-driven-th1-differentiation
#8
Regina K Rowe, David M Pyle, Andrew R Tomlinson, Tinghong Lv, Zheng Hu, Michelle A Gill
IgE-mediated allergic activation impairs the virus-induced Th1 lymphocyte priming capacity of human monocytes in response to influenza exposure. These findings represent one potential mechanism contributing to the link between viral infections and allergic disease.
January 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28081558/should-new-zealand-introduce-nationwide-pulse-oximetry-screening-for-the-detection-of-critical-congenital-heart-disease-in-newborn-infants
#9
Elza Cloete, Thomas L Gentles, Jane M Alsweiler, Lesley A Dixon, Dianne R Webster, Deborah L Rowe, Frank H Bloomfield
No abstract text is available yet for this article.
January 13, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28081463/analysis-of-the-results-of-recurrent-intracranial-meningiomas-treated-with-re-radiosurgery
#10
Moinay Kim, Do Hee Lee, Hyun Jung Kim Rn, Young Hyun Cho, Jeong Hoon Kim, Do Hoon Kwon
OBJECTS: Meningioma is the most common intracranial neoplasm, comprising approximately 30% of all primary intracranial tumors (Claus et al., 2005) [1]. Treatment options include observation, microsurgical resection, stereotactic radiosurgery (SRS), and whole brain radiation therapy (WBRT). Gamma knife radiosurgery (GKRS) is a very effective treatment for intracranial meningiomas; previous studies showed the tumor control rate at 5-10 years of follow-up as 84.3%-100% in all cases (Feigl et al...
December 29, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28081286/carbon-carbon-bond-formation-in-a-weak-ligand-field-leveraging-open-shell-first-row-transition-metal-catalysts
#11
Paul James Chirik
Unique features of Earth abundant transition metal catalysts are reviewed in the context of catalytic carbon-carbon bond forming reactions. Aryl-substituted bis(imino)pyridine iron and cobalt dihalide compounds, when activated with alkyl aluminum reagents, form highly active catalysts for the polymerization of ethylene. Open shell iron and cobalt alkyl complexes have been synthesized that serve as single component olefin polymerization catalysts. Reduced bis(imino)pyridine iron- and cobalt dinitrogen compounds have also been discovered that promote the unique [2+2] cycloaddition of unactivated terminal alkenes...
January 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28080051/prediction-of-bond-dissociation-energies-heat-of-formation-for-diatomic-transition-metal-compounds-ccsd-t-works
#12
Zongtang Fang, Monica Vasiliu, Kirk A Peterson, David A Dixon
It was recently reported (J. Chem. Theory Comput. 2015, 11, 2036-2052) that the coupled cluster singles and doubles with perturbative triples method, CCSD(T), should not be used as a benchmark tool for the prediction of dissociation energies (heats of formation) for the 1st row transition metal diatomics based on a comparison with the experimental thermodynamic values for a set of 20 diatomics. In the present work the bond dissociation energies as well as the heats of formation for those diatomics have been calculated by the Feller-Peterson-Dixon approach at the CCSD(T)/complete basis set (CBS) level of theory including scalar relativistic corrections and correlation of the outer shell of core electrons in addition to the valence electrons...
January 12, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28079906/4d-and-5d-bimetal-doped-tubular-silicon-clusters-si12m2-with-m-nb-ta-mo-and-w-a-bimetallic-configuration-model
#13
Hung Tan Pham, Devashis Majumdar, Jerzy Leszczynski, Minh Tho Nguyen
Geometries and electronic properties related to the ground state stabilities of several Si12M2 clusters (M: second-row (Nb and Mo) and third-row (Ta and W) transition metals, and their mixed bimetallic clusters M2: NbMo and TaW) were explored using density functional theory (DFT) computations. The computed results show that two different structural motifs emerge as the global energy minima of such clusters. They are basically singlet tubular structures in either a C2v prism ((1)A1) or a C6v antiprism ((1)A1) form...
January 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28078794/the-cobalt-cyclo-p4-sandwich-complex-and-its-role-in-the-formation-of-polyphosphorus-compounds
#14
Fabian Dielmann, Alexey Timoshkin, Martin Piesch, Gábor Balázs, Manfred Scheer
A synthetic approach to the sandwich complex [Cp'''Co(η(4) -P4 )] (2) containing a cyclo-P4 ligand as an end-deck was developed. Complex 2 is the missing homologue in the series of first-row cyclo-Pn sandwich complexes, and shows a unique tendency to dimerize in solution to form two isomeric P8 complexes [(Cp'''Co)2 (μ,η(4) :η(2) :η(1) -P8 )] (3 and 4). Reactivity studies indicate that 2 and 3 react with further [Cp'''Co] fragments to give [(Cp'''Co)2 (μ,η(2) :η(2) -P2 )2 ] (5) and [(Cp'''Co)3 P8 ] (6), respectively...
January 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28078075/a-design-method-for-fes-bone-health-therapy-in-sci
#15
Brian Andrews, James Shippen, Monica Armengol, Robin Gibbons, William Holderbaum, William Harwin
FES assisted activities such as standing, walking, cycling and rowing induce forces within the leg bones and have been proposed to reduce osteoporosis in spinal cord injury (SCI). However, details of the applied mechanical stimulus for osteogenesis is often not reported. Typically, comparisons of bone density results are made after costly and time consuming clinical trials. These studies have produced inconsistent results and are subject to sample size variations. Here we propose a design process that may be used to predict the clinical outcome based on biomechanical simulation and mechano-biology...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28077468/integrated-imaging-of-echocardiography-and-computed-tomography-to-grade-mitral-regurgitation-severity-in-patients-undergoing-transcatheter-aortic-valve-implantation
#16
Philippe J van Rosendael, Suzanne E van Wijngaarden, Vasileios Kamperidis, William K F Kong, Melissa Leung, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
AIMS: Quantitative mitral regurgitation (MR) grading remains challenging. This study evaluated the concept of integrating echocardiography and computed tomography for grading MR severity. Specifically, an integrated parameter was developed that combines the true cross-sectional mitral regurgitant orifice area (ROA) assessed with multi-detector row computed tomography (MDCT) with flow data from echocardiography. METHODS AND RESULTS: Systolic MDCT data of 73 patients, referred for transcatheter aortic valve implantation (TAVI) who also had MR, were evaluated...
January 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28076656/combined-inhaled-beta-agonist-and-anticholinergic-agents-for-emergency-management-in-adults-with-asthma
#17
REVIEW
Scott W Kirkland, Christine Vandenberghe, Britt Voaklander, Taylor Nikel, Sandra Campbell, Brian H Rowe
BACKGROUND: Inhaled short-acting anticholinergics (SAAC) and short-acting beta₂-agonists (SABA) are effective therapies for adult patients with acute asthma who present to the emergency department (ED). It is unclear, however, whether the combination of SAAC and SABA treatment is more effective in reducing hospitalisations compared to treatment with SABA alone. OBJECTIVES: To conduct an up-to-date systematic search and meta-analysis on the effectiveness of combined inhaled therapy (SAAC + SABA agents) vs...
January 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28074783/automated-extraction-of-single-h-atoms-with-stm-tip-state-dependency
#18
Morten Møller, Samuel P Jarvis, Laurent Guérinet, Peter Sharp, Richard Woolley, Philipp Rahe, Philip Moriarty
The atomistic structure of the tip apex plays a crucial role in performing reliable atomic-scale surface and adsorbate manipulation using scanning probe techniques. We have developed an automated extraction routine for controlled removal of single hydrogen atoms from the H:Si(100) surface. The set of atomic extraction protocols detect a variety of desorption events during scanning tunneling microscope (STM)-induced modification of the hydrogen-passivated surface. The influence of the tip state on the probability for hydrogen removal was examined by comparing the desorption efficiency for various classifications of STM topographs (rows, dimers, atoms, etc)...
January 11, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28073978/effects-of-bt-corn-and-egg-density-on-western-corn-rootworm-coleoptera-chrysomelidae-adult-emergence-and-estimation-of-effective-bt-dose
#19
L A Campbell, P L Prasifka, N P Storer, D M Rule, W H Hendrix
Since 2003, rootworm-protected transgenic corn has been commercially deployed in the United States as a principal method of control of western corn rootworm, Diabrotica virgifera virgifera LeConte. Durability of this technology depends partly on larval mortality ("dose") exerted by the traits, but density-dependent mortality can confound calculations of dose. Research reported here examined the effects of density-dependent mortality on adult emergence and estimates of trait dose. At sites in Illinois and Indiana, western corn rootworm eggs were infested at four densities on non-Bt corn and at a single density on corn hybrids with transgenic events MON 88017 (VT Triple PRO), DAS-59122-7 (Herculex Insect Protection), and MON 88017 × DAS-59122-7 (SmartStax corn)...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28073071/morphology-of-four-new-solitary-sessile-peritrich-ciliates-from-the-yellow-sea-china-with-description-of-an-unidentified-species-of-paravorticella-ciliophora-peritrichia
#20
Ping Sun, Saleh A Al-Farraj, Alan Warren, Honggang Ma
Sessile peritrichs are a large assemblage of ciliates that have a wide distribution in soil, freshwater and marine waters. Here, we document four new and one unidentified species of solitary sessile peritrichs from aquaculture ponds and coastal waters of the northern Yellow Sea, China. Based on their living morphology, infraciliature and silverline system, four of the five forms were identified as new members belonging to one of three genera, Vorticella, Pseudovorticella and Scyphidia, representing two families, Vorticellidae and Scyphidiidae...
November 14, 2016: European Journal of Protistology
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