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https://www.readbyqxmd.com/read/28930089/rare-occurrence-of-heart-lesions-in-pacific-oysters-crassostrea-gigas-caused-by-an-unknown-bacterial-infection
#1
Gary R Meyer, Geoffrey J Lowe, Susan M Bower
On rare occasions, small cream-coloured cysts have been observed in the heart and pericardial cavity of Pacific oysters Crassostrea gigas from British Columbia, Canada. Histopathology revealed the presence of large colonies of bacteria (up to 800 µm in diameter) causing significant host response and hypertrophy of the heart epithelium. The causative bacteria were characterized as follows: Gram-negative, coccoid to small rod-shaped, typically <1.5 µm in size, cell walls highly endowed with surface fimbriae and division via binary fission...
September 20, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28928940/comparison-of-color-discrimination-in-chronic-heavy-smokers-and-healthy-subjects
#2
Thiago Monteiro de Paiva Fernandes, Natanael Antonio Dos Santos
Background: Cigarette smoke is probably the most significant source of exposure to toxic chemicals for humans, involving health-damaging components, such as nicotine, hydrogen cyanide and formaldehyde. The aim of the present study was to assess the influence of chronic heavy smoking on color discrimination (CD). Methods: All subjects were free of any neuropsychiatric disorder, identifiable ocular disease and had normal acuity. No abnormalities were detected in the fundoscopic examination and in the optical coherence tomography exam...
2017: F1000Research
https://www.readbyqxmd.com/read/28928528/alginate-edible-films-containing-microencapsulated-lemongrass-oil-or-citral-effect-of-encapsulating-agent-and-storage-time-on-physical-and-antimicrobial-properties
#3
Jessica K Alarcón-Moyano, Rubén O Bustos, María Lidia Herrera, Silvia B Matiacevich
Active edible films have been proposed as an alternative to extend shelf life of fresh foods. Most essential oils have antimicrobial properties; however, storage conditions could reduce their activity. To avoid this effect the essential oil (EO) can be microencapsulated prior to film casting. The aim of this study was to determine the effects of the type of encapsulating agent (EA), type of EO and storage time on physical properties and antimicrobial activity of alginate-based films against Escherichia coli ATCC 25922...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928521/comparative-analysis-of-carotenoid-content-in-momordica-cochinchinensis-cucurbitaceae-collected-from-australia-thailand-and-vietnam
#4
Dilani Wimalasiri, Robert Brkljača, Terrence J Piva, Sylvia Urban, Tien Huynh
Momordica cochinchinensis (Cucurbitaceae) is the richest source of lycopene and β-carotene of all known fruits but the influences of collection sites, variety and environment on carotenoid accumulation is unknown. This study analysed the carotenoid content of 44 M. cochinchinensis aril samples collected from Australia, Thailand and Vietnam using HPLC, UV-visible spectrophotometry and compared with the colorimetry method. The highest lycopene content was observed in samples collected from Ha Noi (7.76 mg/g) of Northern Vietnam and Lam Ha (6...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928519/measurement-of-ripening-of-raspberries-rubus-idaeus-l-by-near-infrared-and-colorimetric-imaging-techniques
#5
Francisco J Rodríguez-Pulido, María Gil-Vicente, Belén Gordillo, Francisco J Heredia, M Lourdes González-Miret
This work includes the evaluation of 168 samples of raspberries 'Glen Lyon', representing whole maturation period, by colorimetric and near infrared imaging techniques, as well as the quantification of total phenols, total anthocyanins and antioxidant activity by chemical methods. Samples showed significant differences depending on the maturation stage using CIELAB colour parameters and total anthocyanins content. The application of partial least squares regression allowed predicting the chemical features from image analysis data, with coefficients of determination (R(2)) up to 0...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928510/co-extrusion-of-food-grains-banana-pulp-for-nutritious-snacks-optimization-of-process-variables
#6
D Mridula, Swati Sethi, Surya Tushir, Sheetal Bhadwal, R K Gupta, S K Nanda
Present study was undertaken to optimize the process conditions for development of food grains (maize, defatted soy flour, sesame seed)-banana based nutritious expanded snacks using extrusion processing. Experiments were designed using Box-Behnken design with banana pulp (8-24 g), screw speed (300-350 rpm) and feed moisture (14-16% w.b.). Seven responses viz. expansion ratio (ER), bulk density (BD), water absorption index (WAI), protein, minerals, iron and sensory acceptability were considered for optimizing independent parameters...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928508/effect-of-%C3%AE-glucan-fortification-on-physico-chemical-rheological-textural-colour-and-organoleptic-characteristics-of-low-fat-dahi
#7
Dadi Bhaskar, Sunil Kumar Khatkar, Rekha Chawla, Harsh Panwar, Swati Kapoor
Fortified low fat functional dahi prepared by supplementing skimmed buffalo milk with β-glucan (0.25, 0.50, 0.75 and 1.0%) was assessed for physico-chemical, rheological, textural, colour and sensorial characteristics. Total solids in dahi increased significantly with the increase in β-glucan concentration, however, values of fat, protein and ash varied non-significantly upon β-glucan addition in dahi. β-glucan at 0.5% solids levels, produced low fat dahi with superior quality, less whey separation and good textural properties than the samples containing other levels...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928097/tooth-colour-and-whiteness-a-review
#8
Andrew Joiner, Wen Luo
OBJECTIVES: To review current knowledge concerning the application of colour science on tooth colour and whiteness description, measurement, distribution and its psychological impact. DATA SOURCES: "Scopus" databases were searched electronically with the principal keywords tooth, teeth, colour, white, whiteness. Language was restricted to English and original studies and reviews were included. Conference papers and abstracts were excluded. CONCLUSIONS: The appearance and colour of teeth is a common concern for patients across many populations and is associated with an increased desire for treatments that improve dental aesthetics, including tooth whitening...
September 16, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28927554/catheter-foam-sclerotherapy-of-the-great-saphenous-vein-with-perisaphenous-tumescence-infiltration-and-saphenous-irrigation
#9
Attilio Cavezzi, Giovanni Mosti, Fausto Campana, Lorenzo Tessari, Luca Bastiani, Simone U Urso
OBJECTIVES: This was a prospective observational study to assess the short- to mid-term efficacy and safety of catheter foam sclerotherapy (CFS) of the great saphenous vein (GSV), including peri-saphenous tumescence infiltration (PST) and intra-saphenous saline irrigation (ISI), in combination with phlebectomy of the varicose tributaries. METHODS: Eighty-eight limbs in 82 patients (19 male, 63 female, mean age 55.7 years) affected by varices related to GSV incompetence were submitted to CFS of the refluxing GSV segment after PST and ISI, combined with phlebectomy of the varicose tributaries...
September 15, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28927357/bogushevskayam-v-colla-e-eds-thinking-colours-perception-translation-and-representation-bogushevskayam-v-colla-e-eds-thinking-colours-perception-translation-and-representation-newcastle-upon-tyne-england-cambridge-scholars-2015-247%C3%A2-%C3%A2-14-pp-isbn-13-978-1443875295
#10
https://www.readbyqxmd.com/read/28926950/development-of-a-textile-nanocomposite-as-naked-eye-indicator-of-the-exposition-to-strong-acids
#11
Isabel Pallás, Maria D Marcos, Ramón Martínez-Máñez, Jose V Ros-Lis
Chemical burns, mainly produced by acids, are a topic of concern. A new sensing material for the detection of strong acids able to be incorporated into textiles has been developed. The material is prepared by the covalent attachment of 2,2',4,4',4″-pentamethoxy triphenyl methanol to a mesoporous material which further is included in a nitro resin to obtain a colourless composite. The response of this composite to diverse acid solutions was tested showing the appearance of an intense purple colour (with a colour difference higher than 160) that can be monitored by the naked eye or could be easily digitised to feed an instrumental sensor...
September 16, 2017: Sensors
https://www.readbyqxmd.com/read/28923339/-tobacco-use-in-brazilian-school-adolescents-association-with-mental-health-and-family-context
#12
Camila Zander Neves, Claudine Devicari Bueno, Giovana Pires Felden, Mariane Costa Irigaray, María Fernanda Rivadeneira, Nágila Oenning, Bárbara Niegia Garcia de Goulart
OBJECTIVE: To study the association between aspects of mental health and the family context with tobacco experimentation and consumption among Brazilian schoolchildren. METHOD: A cross-sectional study using data from the National Survey of Schoolchildren's Health in Brazil conducted on 109,104 schoolchildren from the ninth year of elementary school, day scholars in public and private schools in all Brazilian state capitals and the Federal District. Descriptive analysis of variables, bivariate and multivariate analyses were performed with logistic regression estimates, adjusted for socioeconomic variables, obtaining the odds ratio (OR) and 95% confidence interval (95%CI)...
September 15, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28922699/vision-assessment-in-persons-with-intellectual-disabilities
#13
Werner Eisenbarth
PURPOSE: To investigate the degree of visual acuity in workers with intellectual disabilities and the impact of vision on their working conditions. METHODS: We recruited 224 workers (mean age 43.77 years, SD ± 12.96; range, 19-72 years) from a workshop for those with intellectual disabilities, to participate in a vision examination program. The assessment consisted of objective refraction, visual acuity, ocular motility, near-point of convergence, cover/uncover test, stereo acuity and colour perception...
September 18, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28922115/colour-constancy-beyond-the-classical-receptive-field
#14
Arash Akbarinia, C Alejandro Parraga
The problem of removing illuminant variations to preserve the colours of objects (colour constancy) has already been solved by the human brain using mechanisms that rely largely on centre-surround computations of local contrast. In this paper we adopt some of these biological solutions described by long known physiological findings into a simple, fully automatic, functional model (termed Adaptive Surround Modulation or ASM). In ASM, the size of a visual neuron's receptive field (RF) as well as the relationship with its surround varies according to the local contrast within the stimulus, which in turn determines the nature of the centre-surround normalisation of cortical neurons higher up in the processing chain...
September 18, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28921589/susceptibility-behaviour-and-retention-of-the-parasitic-salmon-louse-lepeophtheirus-salmonis-differ-with-atlantic-salmon-population-origin
#15
S Bui, S Dalvin, T Dempster, O F Skulstad, R B Edvardsen, A Wargelius, F Oppedal
Atlantic salmon populations across the world have diverse ecological and evolutionary histories, from wild anadromous or landlocked, to domestication and genetic modification. The natural host behaviours confer protection from infestation by ectoparasitic salmon lice Lepeophtheirus salmonis, yet whether genetic origin results in different behaviours and thus susceptibility to infestation is unknown. In common garden experiments, we tested antiparasite behaviours, susceptibility and retention of salmon lice in wild anadromous, wild landlocked, domesticated and genetically modified domesticated strains...
September 17, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28921549/%C3%AE-flucs-brighter-photinus-pyralis-firefly-luciferases-identified-by-surveying-consecutive-single-amino-acid-deletion-mutations-in-a-thermostable-variant
#16
Lisa M Halliwell, Amit P Jathoul, Jack P Bate, Harley L Worthy, James C Anderson, Dafydd D Jones, James A H Murray
The bright bioluminescence catalysed by Photinus pyralis firefly luciferase (Fluc) enables a vast array of life science research such as bioimaging in live animals and sensitive in vitro diagnostics. The effectiveness of such applications is improved using engineered enzymes that to date have been constructed using amino acid substitutions. We describe ΔFlucs: consecutive single amino acid deletion mutants within 6 loop structures of the bright and thermostable x11 Fluc. Deletion mutations are a promising avenue to explore new sequence and functional space and isolate novel mutant phenotypes...
September 16, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28920853/flavobacterium-chuncheonense-sp-nov-and-flavobacterium-luteum-sp-nov-isolated-from-a-freshwater-lake
#17
Miri Park, Gi Gyun Nam, Suhyun Kim, Hyoung Tae Jeon, Yochan Joung, Jang-Cheon Cho
Two Gram-staining-negative, orange coloured, non-motile, rod-shaped bacterial strains, designated strains IMCC26013T and IMCC26026T, were isolated from a freshwater sample collected from Lake Soyang in Korea. The 16S rRNA gene-based phylogenetic analyses showed that both strains belonged to the genus Flavobacterium and that strains IMCC26013T and IMCC26026T were most closely related to Flavobacterium psychrophilum (96.5 %) and Flavobacterium myungsuense (97.7 %), respectively. DNA G+C contents of strains IMCC26013T and IMCC26026T were 37...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28920850/ramlibacter-alkalitolerans-sp-nov-alkali-tolerant-bacterium-isolated-from-soil-of-ginseng
#18
Do-Hoon Lee, Chang-Jun Cha
A novel bacterial strain, designated CJ661T, was isolated from soil of ginseng in Anseong, South Korea. Cells of strain CJ661T were white-coloured, Gram-staining-negative, non-motile, aerobic and rod-shaped. Strain CJ661T grew optimally at 30 °C and pH 7.0. The analysis of 16S rRNA gene sequence of strain CJ661T showed that it belongs to the genus Ramlibacter within the family Comamonadaceae and was most closely related to Ramlibacter ginsenosidimutans KCTC 22276T (98.1 %), followed by Ramlibacter henchirensis DSM 14656T (97...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28920848/dyella-agri-sp-nov-isolated-from-reclaimed-grassland-soil
#19
Dhiraj Kumar Chaudhary, Jaisoo Kim
A novel strain, DKC-1T, was isolated from reclaimed grassland soil and was characterized taxonomically by a polyphasic approach. Strain DKC-1T was a Gram-staining-negative, light-yellow-coloured and rod shaped bacterium, motile with polar flagellum. It was able to grow at 20-37 °C, at pH 4.5-9.0 and with 0-3 % (w/v) NaCl concentration. Based on the 16S rRNA gene sequence analysis, strain DKC-1T formed a clade within the members of the genus Dyella and showed highest sequence similarities to Dyella japonica XD53T (98...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28920838/edaphobaculum-flavum-gen-nov-sp-nov-a-member-of-family-chitinophagaceae-isolated-from-grassland-soil
#20
Min Cao, Jing Huang, Jingxin Li, Zixu Qiao, Gejiao Wang
A yellow-coloured, Gram-stain-negative, non-motile, rod-shaped, strictly aerobic bacterium, designated 1-116T, was isolated from Erdos grassland soil of Inner Mongolia, PR China. Phylogenetic analysis based on 16S rRNA genes showed that strain 1-116T was a member of family Chitinophagaceae and exhibited the highest similarities to Taibaiella koreensis THG-DT86T (90.1 %) and Flavihumibacter solisivae 3-3T (90.0 %), while the similarities to the other Chitinophagaceae type strains were lower than 90.0 %...
September 18, 2017: International Journal of Systematic and Evolutionary Microbiology
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