keyword
MENU ▼
Read by QxMD icon Read
search

vane

keyword
https://www.readbyqxmd.com/read/28163870/features-of-owl-wings-that-promote-silent-flight
#1
REVIEW
Hermann Wagner, Matthias Weger, Michael Klaas, Wolfgang Schröder
Owls are an order of birds of prey that are known for the development of a silent flight. We review here the morphological adaptations of owls leading to silent flight and discuss also aerodynamic properties of owl wings. We start with early observations (until 2005), and then turn to recent advances. The large wings of these birds, resulting in low wing loading and a low aspect ratio, contribute to noise reduction by allowing slow flight. The serrations on the leading edge of the wing and the velvet-like surface have an effect on noise reduction and also lead to an improvement of aerodynamic performance...
February 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28160981/corrigendum-to-significance-of-dissolved-methane-in-effluents-of-anaerobically-treated-low-strength-wastewater-and-potential-for-recovery-as-an-energy-product-a-review-water-res-104-2016-520-531
#2
Brian C Crone, Jay L Garland, George A Sorial, Leland M Vane
No abstract text is available yet for this article.
February 1, 2017: Water Research
https://www.readbyqxmd.com/read/28135249/the-cdc42-rac1-regulator-cdgap-is-a-novel-e-cadherin-transcriptional-co-repressor-with-zeb2-in-breast-cancer
#3
Y He, J J Northey, A Pelletier, Z Kos, L Meunier, B Haibe-Kains, A-M Mes-Masson, J-F Côté, P M Siegel, N Lamarche-Vane
The loss of E-cadherin causes dysfunction of the cell-cell junction machinery, which is an initial step in epithelial-to-mesenchymal transition (EMT), facilitating cancer cell invasion and the formation of metastases. A set of transcriptional repressors of E-cadherin (CDH1) gene expression, including Snail1, Snail2 and Zeb2 mediate E-cadherin downregulation in breast cancer. However, the molecular mechanisms underlying the control of E-cadherin expression in breast cancer progression remain largely unknown...
January 30, 2017: Oncogene
https://www.readbyqxmd.com/read/28118925/treatment-of-the-first-bite-syndrome
#4
María Costales-Marcos, Fernando López Álvarez, Laura Fernández-Vañes, Justo Gómez, José Luis Llorente
First bite syndrome is a potential complication of surgery involving the infratemporal fossa, deep lobe of the parotid gland and parapharyngeal space. It is described as an acute and intense pain in the parotid region caused with the first bite of each meal. It is related to damage to sympathetic innervation of the parotid gland. Parasympathetic hyperactivation is believed to stimulate an exaggerated myoepithelial cell contraction causing pain. Usual analgesic treatments have poor results. Botulinum toxin type A causes parasympathetic nerve paralysis of the parotid gland and this fact would minimize salivation and decrease first bite syndrome...
January 21, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28110860/results-of-total-laryngectomy-as-treatment-for-locally-advanced-hypopharyngeal-cancer
#5
Patricia García-Cabo Herrero, Laura Fernández-Vañes, Fernando López Álvarez, César Álvarez Marcos, José Luis Llorente, Juan Pablo Rodrigo
INTRODUCTION AND OBJECTIVES: Total laryngectomy (TL), with eventual postoperative radiotherapy, has proven to be effective in treating cases of locally advanced hypopharyngeal cancer. The aim of this study was to analyse the oncological outcomes of this procedure in patients with hypopharyngeal cancer classified T3 and T4. METHODS: We studied 59 patients (33 T3 and 26 T4a) with primary squamous cell carcinoma of the hypopharynx treated with TL from 1998 to 2012...
January 19, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28106042/diverse-feather-shape-evolution-enabled-by-coupling-anisotropic-signalling-modules-with-self-organizing-branching-programme
#6
Ang Li, Seth Figueroa, Ting-Xin Jiang, Ping Wu, Randall Widelitz, Qing Nie, Cheng-Ming Chuong
Adaptation of feathered dinosaurs and Mesozoic birds to new ecological niches was potentiated by rapid diversification of feather vane shapes. The molecular mechanism driving this spectacular process remains unclear. Here, through morphology analysis, transcriptome profiling, functional perturbations and mathematical simulations, we find that mesenchyme-derived GDF10 and GREM1 are major controllers for the topologies of rachidial and barb generative zones (setting vane boundaries), respectively, by tuning the periodic-branching programme of epithelial progenitors...
January 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102214/corrigendum-wnk1-kinase-balances-t-cell-adhesion-versus-migration-in-vivo
#7
Robert Köchl, Flavian Thelen, Lesley Vanes, Tiago F Brazão, Kathryn Fountain, Jian Xie, Chou-Long Huang, Ruth Lyck, Jens V Stein, Victor L J Tybulewicz
No abstract text is available yet for this article.
January 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28098457/surface-forces-and-rheology-of-titanium-dioxide-in-the-presence-of-dicarboxylic-acids-from-molecular-interactions-to-yield-stress
#8
E-Jen Teh, Yee-Kwong Leong, Vincent S J Craig
The surface forces and yield stress of titanium dioxide were measured in the presence of dicarboxylic acids in order to understand the molecular basis for the observed rheological response. The yield stress was measured using the static vane technique, and the surface forces were characterized using an atomic force microscope. The trans and cis isomers of butenedioic acid (fumaric and maleic acids, respectively) were chosen as the relative orientation of the carboxylic groups differs substantially. This enables us to test the hypothesis that an increase in adhesion leads to an increase in yield stress as a consequence of the dicarboxylic acids participating in highly directed bridging...
January 31, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28070276/a-hypothesis-to-explain-accuracy-of-wasp-resemblances
#9
Michael Boppré, Richard I Vane-Wright, Wolfgang Wickler
Mimicry is one of the oldest concepts in biology, but it still presents many puzzles and continues to be widely debated. Simulation of wasps with a yellow-black abdominal pattern by other insects (commonly called "wasp mimicry") is traditionally considered a case of resemblance of unprofitable by profitable prey causing educated predators to avoid models and mimics to the advantage of both (Figure 1a). However, as wasps themselves are predators of insects, wasp mimicry can also be seen as a case of resemblance to one's own potential antagonist...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28070227/disposable-fluidic-actuators-for-miniature-in-vivo-surgical-robotics
#10
Abolfazl Pourghodrat, Carl A Nelson
Fusion of robotics and minimally invasive surgery (MIS) has created new opportunities to develop diagnostic and therapeutic tools. Surgical robotics is advancing from externally actuated systems to miniature in-vivo robotics. However, with miniaturization of electric-motor-driven surgical robots, there comes a trade-off between the size of the robot and its capability. Slow actuation, low load capacity, sterilization difficulties, leaking electricity and transferring produced heat to tissues, and high cost are among the key limitations of the use of electric motors in in-vivo applications...
March 2017: Journal of Medical Devices
https://www.readbyqxmd.com/read/27987218/the-effects-of-tracheal-tube-cuffs-filled-with-air-saline-or-alkalinised-lidocaine-on-haemodynamic-changes-and-laryngotracheal-morbidity-in-children-a-randomised-controlled-trial
#11
S M F Soares, V M Arantes, M P Módolo, V J B Dos Santos, L A Vane, L H Navarro E Lima, L G Braz, P do Nascimento, N S P Módolo
We studied the effects of tracheal tube cuffs filled with air, saline or alkalinised lidocaine on haemodynamic changes during tracheal extubation and postoperative laryngotracheal morbidity in children. We randomly allocated 164 children aged 3-13 years undergoing general anaesthesia to one of four groups; tracheal tube cuffs filled with air (n = 41); saline (n = 41); alkalinised lidocaine 0.5% (n = 41); or alkalinised lidocaine 1% (n = 41). Intracuff pressure was monitored and maintained below 20 cmH2 O. The mean (SD) increases in systolic blood pressure after tracheal extubation compared with before extubation were 10...
December 17, 2016: Anaesthesia
https://www.readbyqxmd.com/read/27926862/vav-proteins-are-key-regulators-of-card9-signaling-for-innate-antifungal-immunity
#12
Susanne Roth, Hanna Bergmann, Martin Jaeger, Assa Yeroslaviz, Konstantin Neumann, Paul-Albert Koenig, Clarissa Prazeres da Costa, Lesley Vanes, Vinod Kumar, Melissa Johnson, Mauricio Menacho-Márquez, Bianca Habermann, Victor L Tybulewicz, Mihai Netea, Xosé R Bustelo, Jürgen Ruland
Fungal infections are major causes of morbidity and mortality, especially in immunocompromised individuals. The innate immune system senses fungal pathogens through Syk-coupled C-type lectin receptors (CLRs), which signal through the conserved immune adaptor Card9. Although Card9 is essential for antifungal defense, the mechanisms that couple CLR-proximal events to Card9 control are not well defined. Here, we identify Vav proteins as key activators of the Card9 pathway. Vav1, Vav2, and Vav3 cooperate downstream of Dectin-1, Dectin-2, and Mincle to engage Card9 for NF-κB control and proinflammatory gene transcription...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27924928/unified-rheology-of-vibro-fluidized-dry-granular-media-from-slow-dense-flows-to-fast-gas-like-regimes
#13
Andrea Gnoli, Antonio Lasanta, Alessandro Sarracino, Andrea Puglisi
Granular media take on great importance in industry and geophysics, posing a severe challenge to materials science. Their response properties elude known soft rheological models, even when the yield-stress discontinuity is blurred by vibro-fluidization. Here we propose a broad rheological scenario where average stress sums up a frictional contribution, generalizing conventional μ(I)-rheology, and a kinetic collisional term dominating at fast fluidization. Our conjecture fairly describes a wide series of experiments in a vibrofluidized vane setup, whose phenomenology includes velocity weakening, shear thinning, a discontinuous thinning transition, and gaseous shear thickening...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27870026/global-associations-between-birds-and-vane-dwelling-feather-mites
#14
Jorge Doña, Heather Proctor, Sergey Mironov, David Serrano, Roger Jovani
Understanding host-symbiont networks is a major question in evolutionary ecology. Birds host a great diversity of endo- and ectosymbiotic organisms, with feather mites (Arachnida: Acariformes: Analgoidea, Pterolichoidea) being among the most diverse of avian symbionts. A global approach to the ecology and evolution of bird-feather-mite associations has been hampered because of the absence of a centralized data repository. Here we present the most extensive data set of associations between feather mites and birds...
November 2016: Ecology
https://www.readbyqxmd.com/read/27832345/olfactory-cues-visual-cues-and-semiochemical-diversity-interact-during-host-location-by-invasive-forest-beetles
#15
Jessica L Kerr, Dave Kelly, Martin K-F Bader, Eckehard G Brockerhoff
Plant-feeding insects use visual and olfactory cues (shape, color, plant volatiles) for host location, but the relative importance of different cues and interactions with non-host-plant volatiles in ecosystems of varying plant biodiversity is unclear for most species. We studied invasive bark beetles and wood borers associated with pine trees to characterize interactions among color, host and non-host volatiles, by employing traps that mimic tree trunks. Cross-vane flight intercept traps (black, green, red, white, yellow, clear) and black funnel traps were used with and without attractants (α-pinene + ethanol), repellents (non-host green leaf volatiles, 'GLV'), and attractant/repellent combinations in four pine forests in New Zealand...
November 10, 2016: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/27827368/decrease-of-syngap1-in-gabaergic-cells-impairs-inhibitory-synapse-connectivity-synaptic-inhibition-and-cognitive-function
#16
Martin H Berryer, Bidisha Chattopadhyaya, Paul Xing, Ilse Riebe, Ciprian Bosoi, Nathalie Sanon, Judith Antoine-Bertrand, Maxime Lévesque, Massimo Avoli, Fadi F Hamdan, Lionel Carmant, Nathalie Lamarche-Vane, Jean-Claude Lacaille, Jacques L Michaud, Graziella Di Cristo
Haploinsufficiency of the SYNGAP1 gene, which codes for a Ras GTPase-activating protein, impairs cognition both in humans and in mice. Decrease of Syngap1 in mice has been previously shown to cause cognitive deficits at least in part by inducing alterations in glutamatergic neurotransmission and premature maturation of excitatory connections. Whether Syngap1 plays a role in the development of cortical GABAergic connectivity and function remains unclear. Here, we show that Syngap1 haploinsufficiency significantly reduces the formation of perisomatic innervations by parvalbumin-positive basket cells, a major population of GABAergic neurons, in a cell-autonomous manner...
November 9, 2016: Nature Communications
https://www.readbyqxmd.com/read/27737348/noradrenaline-and-dobutamine-effects-on-the-volume-expansion-with-normal-saline-in-rabbits-subjected-to-hemorrhage
#17
Gualter Lisboa Ramalho, Matheus Fachini Vane, Luciana Cavalcanti Lima, Lucas Fachini Vane, Rosa Beatriz Amorim, Maria Aparecida Domingues, José Mariano Soares de Moraes, Lídia Raquel de Carvalho, Pedro Paulo Tanaka, Luiz Antonio Vane
PURPOSE: To evaluate the effects of dobutamine (DB), noradrenaline (NA), and their combination (NADB), on volume retention in rabbits submitted to hemorrhage. METHODS: Thirty six rabbits were randomly divided into 6 groups: SHAM, Control, Saline, DB, NA, DB+NA. All the animals, except for SHAM, were subjected to hemorrhage of 25% of the calculated blood volume. Control animals were replaced with their own blood. The other groups received NSS 3 times the volume withdrawn...
September 2016: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/27716170/impact-of-mass-screening-on-tuberculosis-incidence-in-a-prospective-cohort-of-brazilian-prisoners
#18
Dayse Sanchez Guimarães Paião, Everton Ferreira Lemos, Andrea da Silva Santos Carbone, Renata Viebrantz Enne Sgarbi, Alexandre Laranjeira Junior, Fellipe Matos da Silva, Letícia Marques Brandão, Luciana Squarizi Dos Santos, Vaneli Silva Martins, Simone Simionatto, Ana Rita Coimbra Motta-Castro, Maurício Antônio Pompílio, Juliana Urrego, Albert Icksang Ko, Jason Randolph Andrews, Julio Croda
BACKGROUND: Globally, prison inmates are a high-risk population for tuberculosis (TB), but the specific drivers of disease and impact of mass screening interventions are poorly understood. METHODS: We performed a prospective cohort study to characterize the incidence and risk factors for tuberculosis infection and disease in 12 Brazilian prisons, and to investigate the effect of mass screening on subsequent disease risk. After recruiting a stratified random sample of inmates, we administered a questionnaire to ascertain symptoms and potential risk factors for tuberculosis; performed tuberculin skin testing (TST); collected sera for HIV testing; and obtained two sputum samples for smear microscopy and culture, from participants reporting a cough of any duration...
October 3, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27699888/carbon-isotope-alteration-during-the-thermal-maturation-of-non-flowering-plant-species-representative-of-those-found-within-the-geological-record
#19
Andrew C Smith, Christopher P Kendrick, Vicky L Moss-Hayes, Christopher H Vane, Melanie J Leng
RATIONALE: The carbon isotope (δ(13) C value) composition of fossil plant material is routinely used as a proxy of past climate and environment change. However, palaeoclimate interpretation requires assumptions about the stability of δ(13) C values in plant material during its decomposition and incorporation into sediments. Previous work on modern angiosperm species shows δ(13) C changes of several per mille during simulated decomposition experiments. However, no such tests have been undertaken on non-flowering plants, which are found extensively within the geological record...
January 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27677864/reflectance-hyperspectral-imaging-for-investigation-of-works-of-art-old-master-paintings-and-illuminated-manuscripts
#20
Costanza Cucci, John K Delaney, Marcello Picollo
Diffuse reflectance hyperspectral imaging, or reflectance imaging spectroscopy, is a sophisticated technique that enables the capture of hundreds of images in contiguous narrow spectral bands (bandwidth < 10 nm), typically in the visible (Vis, 400-750 nm) and the near-infrared (NIR, 750-2500 nm) regions. This sequence of images provides a data set that is called an image-cube or file-cube. Two dimensions of the image-cube are the spatial dimensions of the scene, and the third dimension is the wavelength...
October 18, 2016: Accounts of Chemical Research
keyword
keyword
41749
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"