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https://www.readbyqxmd.com/read/28528530/evaluation-of-ratite-skinning-force-in-order-to-fix-plant-and-mechanical-solutions
#1
Biagio Bianchi
The skin is the most requested product of ratite slaughter and 'first-rate' ratite's skin has a high economic market. Ostrich hide is tanned in South Africa and sold all over the world. Besides, the ostrich meat is considered a niche production in the marketplace, thus allowing for another pro t for the ostrich breeding. Theorical analysis of skinning process has been carried out, and an automatic measurement system has been designed to record the drawing-force on the animal's body during skinning tests. The aim of this study was to indentify the best animal position and provide values of drawing-force in order to design a speci c machine for ostrich skinning...
May 12, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/28528408/the-glaucous-winged-gull-larus-glaucescens-as-an-indicator-of-chemical-contaminants-in-the-canadian-pacific-marine-environment-evidence-from-stable-isotopes
#2
M L Davis, J E Elliott, T D Williams
The Glaucous-winged gull (Larus glaucescens) has been selected by Environment Canada as a marine indicator species for long-term monitoring of persistent contaminants in the Canadian Pacific. However, the indicator value of this species depends on its trophic level and proportion of marine prey in its diet. Eggs, used as the monitoring medium, are produced entirely from maternal resources and knowledge of adult diet before and during egg production is critical to interpreting contaminant levels. Due to a lack of recent and reliable dietary ecology work, we examined the diet of breeding Glaucous-winged gulls through carbon (δ(13)C) and nitrogen (δ(15)N) stable isotope analysis at three colonies on the Pacific coast...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28527465/super-and-sub-lorentzian-effects-in-the-ar-broadened-line-wings-of-hcl-gas
#3
Ha Tran, Gang Li, Volker Ebert, Jean-Michel Hartmann
Using previously recorded spectra of HCl diluted in Ar gas at room temperature for several pressure conditions, we show that the absorptions in between successive P and R transitions are significantly different from those predicted using purely Lorentzian line shapes. Direct theoretical predictions of the spectra are also made using requantized classical molecular dynamics simulations and an input HCl-Ar interaction potential. They provide the time evolution of the dipole auto-correlation function (DAF) whose Fourier-Laplace transform yields the absorption spectrum...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28526754/oxygenation-and-adenosine-deaminase-support-growth-and-proliferation-of-ex-vivo-cultured-drosophila-wing-imaginal-discs
#4
Katrin Strassburger, Franziska K Lorbeer, Marilena Lutz, Fabian Graf, Michael Boutros, Aurelio A Teleman
The Drosophila wing imaginal disc has been an important model system over the past decades for discovering novel biology related to development, signaling, and epithelial morphogenesis. Novel experimental approaches would be enabled by a culturing setup allowing ex vivo cultures of wing discs. Current setups, however, are not able to sustain both growth and cell-cycle progression of wing discs ex vivo. We discover here a setup requiring both oxygenation of the tissue and adenosine deaminase activity in the medium, which supports both growth and proliferation of wing discs for 9 hours...
May 19, 2017: Development
https://www.readbyqxmd.com/read/28526329/a-behaviour-change-intervention-to-reduce-sedentary-time-in-people-with-chronic-obstructive-pulmonary-disease-protocol-for-a-randomised-controlled-trial
#5
Sonia Wing Mei Cheng, Jennifer Alison, Sarah Dennis, Emmanuel Stamatakis, Lissa Spencer, Renae McNamara, Susan Sims, Zoe McKeough
INTRODUCTION: Replacing sedentary behaviour with light intensity physical activity (ie, activities classified as less than three metabolic equivalents, such as slow-paced walking) may be a more realistic strategy for reducing cardiometabolic risk in people with chronic obstructive pulmonary disease than only aiming to increase levels of moderate-vigorous intensity physical activity. Behaviour change interventions to reduce sedentary behaviour in people with chronic obstructive pulmonary disease have not yet been developed or tested...
May 16, 2017: Journal of Physiotherapy
https://www.readbyqxmd.com/read/28526028/move-the-neighbourhood-study-design-of-a-community-based-participatory-public-open-space-intervention-in-a-danish-deprived-neighbourhood-to-promote-active-living
#6
Charlotte Skau Pawlowski, Laura Winge, Sidse Carroll, Tanja Schmidt, Anne Margrethe Wagner, Kamilla Pernille Johansen Nørtoft, Bettina Lamm, René Kural, Jasper Schipperijn, Jens Troelsen
BACKGROUND: A limited amount of research has examined the effect of changing public open spaces on active living. This paper will present the study protocol of a community-based intervention study co-designed in an interdisciplinary collaboration with community members to develop urban installations highly tailored to promote active living among children (10-13-years-old) and seniors (>60-years-old) in a deprived neighbourhood in Copenhagen. METHODS: The study builds on a quasi-experimental study design with two sub-studies: 1) a children study and 2) a senior study...
May 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28525293/where-do-women-get-advice-about-weight-eating-and-physical-activity-during-pregnancy
#7
Adrian Mercado, Becky Marquez, Barbara Abrams, Maureen G Phipps, Rena R Wing, Suzanne Phelan
BACKGROUND: Most women report not receiving information about gestational weight gain (GWG) from prenatal providers, but less is known about other sources of information and their potential impacts on GWG. The purpose of this study was to investigate sources of information about diet, physical activity, and weight control during pregnancy, and the impact of information sources on maternal GWG. MATERIALS AND METHODS: Participants were 183 women with normal weight and 172 women with overweight/obesity who had enrolled in a prenatal lifestyle intervention trial...
May 19, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28525279/double-winged-3-hydroxypyrimidine-2-4-diones-potent-and-selective-inhibition-against-hiv-1-rnase-h-with-significant-antiviral-activity
#8
Sanjeev Kumar V Vernekar, Jing Tang, Bulan Wu, Andrew D Huber, Mary C Casey, Nataliya S Myshakina, Daniel J Wilson, Jayakanth Kankanala, Karen A Kirby, Michael A Parniak, Stefan G Sarafianos, Zhengqiang Wang
Human immunodeficiency virus (HIV) reverse transcriptase (RT)-associated ribonuclease H (RNase H) remains the only virally encoded enzymatic function yet to be exploited as an antiviral target. One of the possible challenges may be that targeting HIV RNase H is confronted with a steep substrate barrier. We have previously reported a 3-hydroxypyrimidine-2,4-dione (HPD) subtype that potently and selectively inhibited RNase H without inhibiting HIV in cell culture. We report herein a critical redesign of the HPD chemotype featuring an additional wing at the C5 position that led to drastically improved RNase H inhibition and significant antiviral activity...
May 19, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28523823/cost-benefit-analysis-of-controlling-the-spotted-wing-drosophila-drosophila-suzukii-matsumura-spread-and-infestation-of-soft-fruits-in-trentino-northern-italy
#9
Emanuele Del Fava, Claudio Ioriatti, Alessia Melegaro
BACKGROUND: We assessed the economic impact of the invasive pest Drosophila suzukii (Matsumura) on the soft fruit industry (strawberries, raspberries, blackberries, and blueberries) in Trentino, Northern Italy, using cost-benefit analysis. A conventional integrated pest management (IPM) based on insecticide, mass trapping and cultural measures is compared to an upgraded IPM strategy based on exclusion netting. Costs and benefits associated with the change between the two are estimated in order to evaluate the most profitable strategy from the societal point of view...
May 19, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28523722/design-of-a-candidate-vibrational-signal-for-mating-disruption-against-the-glassy-winged-sharpshooter-homalodisca-vitripennis
#10
Valerio Mazzoni, Shira D Gordon, Rachele Nieri, Rodrigo Krugner
BACKGROUND: The glassy-winged sharpshooter (GWSS), Homalodisca vitripennis, is an important pest of grapevines due to its ability to transmit Xylella fastidiosa, the causal agent of Pierce's disease. GWSS mating communication is based on vibrational signals; therefore, vibrational mating disruption could be an alternative to insecticides for suppression of GWSS population. Our objectives were to identify spectral features of female signal that elicit male signaling, design disruptive signals able to alter male perception and acceptance of a female, and determine the signal intensity required for future field applications...
May 19, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28523646/phylogenetics-and-ecomorphology-of-emarginate-primary-feathers
#11
Brett Klaassen van Oorschot, Ho Kwan Tang, Bret W Tobalske
Wing tip slots are a distinct morphological trait broadly expressed across the avian clade, but are generally perceived to be unique to soaring raptors. These slots are the result of emarginations on the distal leading and trailing edges of primary feathers, and allow the feathers to behave as individual airfoils. Research suggests these emarginate feathers are an adaptation to increase glide efficiency by mitigating induced drag in a manner similar to aircraft winglets. If so, we might expect birds known for gliding and soaring to exhibit emarginate feather morphology; however, that is not always the case...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28523322/synchronous-bilateral-primary-ovarian-carcinoma-case-presentation
#12
Crîngu Antoniu Ionescu, Simona Vlădăreanu, Liana Pleş, Mihai Cornel Traian Dimitriu, Gheorghe Oto Furău, Teodora Camelia Vlădescu, Alina Mihaela Călin, NuŢi Daniela Oprescu
Bilateral synchronous primary ovarian carcinoma, histopathologically identical or different is a rare entity encountered in clinical practice. We present the case of a 38-year-old patient who is admitted with the presence of a massive pelvic abdominal tumor formation of 45÷35÷25 cm occupying the lower pelvic and upper abdominal floor, reaching halfway distance between the umbilicus and sternum and lateral bilaterally in the two abdominal flanks until iliac wing. The mixed transabdominal÷transvaginal ultrasound and computed tomography (CT), establish the diagnosis of bilateral ovarian tumor...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523290/complex-modular-architecture-around-a-simple-toolkit-of-wing-pattern-genes
#13
Steven M Van Belleghem, Pasi Rastas, Alexie Papanicolaou, Simon H Martin, Carlos F Arias, Megan A Supple, Joseph J Hanly, James Mallet, James J Lewis, Heather M Hines, Mayte Ruiz, Camilo Salazar, Mauricio Linares, Gilson R P Moreira, Chris D Jiggins, Brian A Counterman, W Owen McMillan, Riccardo Papa
Identifying the genomic changes that control morphological variation and understanding how they generate diversity is a major goal of evolutionary biology. In Heliconius butterflies, a small number of genes control the development of diverse wing color patterns. Here, we used full genome sequencing of individuals across the Heliconius erato radiation and closely related species to characterize genomic variation associated with wing pattern diversity. We show that variation around color pattern genes is highly modular, with narrow genomic intervals associated with specific differences in color and pattern...
2017: Nat Ecol Evol
https://www.readbyqxmd.com/read/28521947/ultrabithorax-and-the-evolution-of-insect-forewing-hindwing-differentiation
#14
REVIEW
Yoshinori Tomoyasu
Decades have passed since the stunning four-winged phenotype of the Drosophila Ultrabithorax (Ubx) mutant was reported, and accumulating knowledge obtained from studies on Ubx in Drosophila has provided a framework to investigate the role of Ubx during insect wing evolution. With several new insights emerging from recent studies in non-Drosophila insects, along with the outcomes of genomic studies focused on identifying Ubx targets, it appears to be an appropriate time to revisit the Drosophila paradigm regarding insect wing development and evolution...
February 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/28521760/avian-influenza-a-h7n9-risk-perception-information-trust-and-adoption-of-protective-behaviours-among-poultry-farmers-in-jiangsu-province-china
#15
Bin Cui, Qiuyan Liao, Wendy Wing Tak Lam, Zong Ping Liu, Richard Fielding
BACKGROUND: Poultry farmers are at high-risk from avian influenza A/H7N9 infection due to sustained occupational exposures to live poultry. This study examined factors associated with poultry farmers' adoption of personal protective behaviours (PPBs) based on Protection Motivation Theory (PMT). METHODS: Totally, 297 poultry farmers in three cities of Jiangsu Province, China were interviewed during November 2013-January 2014. Data on PMT constructs, perceived trustworthiness of A/H7N9 information from mass media (formal sources), friends and family (informal sources), intention to adopt and actual adoption of PPBs and respondents' demographics were collected...
May 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28521477/t-cell-immunity-induced-by-a-bivalent-salmonella-based-ceacam6-and-4-1bbl-vaccines-in-a-rat-colorectal-cancer-model
#16
Chunhui Jin, Xiaoqing Duan, Yingying Liu, Jianhong Zhu, Ke Zhang, Yuanting Zhang, Tingting Xia, Yajun Fei, Jianxin Ye
The present study investigated the anti-tumor mechanisms of recombinant non-specific cross-reacting antigen (CEACAM6) and 4-1BB ligand (4-1BBL) Salmonella-based vaccines, and the effect that these vaccinations have on memory T cells and T helper (Th) cell polarization. Colon tumors were induced in rats via 1,2-dimethylhydrazine (DMH) injections. Rats were then treated with injections of attenuated Salmonella typhimurium carrying pIRES-CEACAM6, pIRES-4-1BBL or pIRES-CEACAM6-4-1BBL. In total, 4 vaccine injections, one every other week, were administered during the 8 weeks subsequent to the DMH injection...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521357/lateral-orbitotomy-approach-for-resection-of-intraosseous-sphenoid-wing-meningioma-3-dimensional-operative-video
#17
Joseph D Chabot, S Tonya Stefko, Juan C Fernandez-Miranda
No abstract text is available yet for this article.
June 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28516904/lhx1-5-control-dendritogenesis-and-spine-morphogenesis-of-purkinje-cells-via-regulation-of-espin
#18
Nga Chu Lui, Wing Yip Tam, Caiji Gao, Jian-Dong Huang, Chi Chiu Wang, Liwen Jiang, Wing Ho Yung, Kin Ming Kwan
In the cerebellar cortex, Purkinje cells (PCs) receive signals from different inputs through their extensively branched dendrites and serve as an integration centre. Defects in the dendritic development of PCs thus disrupt cerebellar circuitry and cause ataxia. Here we report that specific inactivation of both Lhx1 and Lhx5 in postnatal PCs results in ataxic mutant mice with abnormal dendritic development. The PCs in the mutants have reduced expression of Espin, an F-actin cytoskeleton regulator. We show that Espin expression is transcriptionally activated by Lhx1/5...
May 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28515332/the-unusual-tracheal-system-within-the-wing-membrane-of-a-dragonfly
#19
Rhainer Guillermo-Ferreira, Esther Appel, Paulina Urban, Pitágoras C Bispo, Stanislav N Gorb
Some consider that the first winged insects had living tissue inside the wing membrane, resembling larval gills or developing wing pads. However, throughout the developmental process of the wing membrane of modern insects, cells and tracheoles in the lumen between dorsal and ventral cuticle disappear and both cuticles become fused. This process results in the rather thin rigid stable structure of the membrane. The herewith described remarkable case of the dragonfly Zenithoptera lanei shows that in some highly specialized wings, the membrane can still be supplemented by tracheae...
May 2017: Biology Letters
https://www.readbyqxmd.com/read/28515299/a-diverse-range-of-novel-rna-viruses-in-geographically-distinct-honey-bee-populations
#20
Emily J Remnant, Mang Shi, Gabriele Buchmann, Tjeerd Blacquière, Edward C Holmes, Madeleine Beekman, Alyson Ashe
Understanding the diversity and consequences of viruses present in honey bees is critical to maintain pollinator health and manage the spread of disease. The viral landscape of honey bees (Apis mellifera) has changed dramatically since the emergence of the parasitic mite Varroa destructor, which increased the spread of virulent variants of viruses such as Deformed wing virus. Previous genomic studies have focused on colonies suffering from Varroa and virulent viruses, which could mask other viral species present in honey bees, resulting in a distorted view of viral diversity...
May 17, 2017: Journal of Virology
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