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https://www.readbyqxmd.com/read/28098825/optical-fibre-sensors-using-graphene-based-materials-a-review
#1
REVIEW
Miguel Hernaez, Carlos R Zamarreño, Sonia Melendi-Espina, Liam R Bird, Andrew G Mayes, Francisco J Arregui
Graphene and its derivatives have become the most explored materials since Novoselov and Geim (Nobel Prize winners for Physics in 2010) achieved its isolation in 2004. The exceptional properties of graphene have attracted the attention of the scientific community from different research fields, generating high impact not only in scientific journals, but also in general-interest newspapers. Optical fibre sensing is one of the many fields that can benefit from the use of these new materials, combining the amazing morphological, chemical, optical and electrical features of graphene with the advantages that optical fibre offers over other sensing strategies...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28098787/pathological-impairment-cell-cycle-arrest-and-apoptosis-of-thymus-and-bursa-of-fabricius-induced-by-aflatoxin-contaminated-corn-in-broilers
#2
Xi Peng, Shiping Bai, Xuemei Ding, Keying Zhang
This study aimed to evaluate the comparative effects of aflatoxin-contaminated corn on the thymus and bursa of Fabricius (BF) in chickens by detecting histopathological lesions, cell cycle phase distribution and apoptosis. A total of 900 COBB500 male broilers were randomly allocated into five groups. The experiment lasted for six weeks and the five dietary treatments consisted of uncontaminated corn (control), 25% contaminated corn, 50% contaminated corn, 75% contaminated corn and 100% contaminated corn groups...
January 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28098546/reoccurrence-of-avian-influenza-a-h5n2-virus-clade-2-3-4-4-in-wild-birds-alaska-usa-2016
#3
Dong-Hun Lee, Mia K Torchetti, Mary Lea Killian, Thomas J DeLiberto, David E Swayne
We report reoccurrence of highly pathogenic avian influenza A(H5N2) virus clade 2.3.4.4 in a wild mallard in Alaska, USA, in August 2016. Identification of this virus in a migratory species confirms low-frequency persistence in North America and the potential for re-dissemination of the virus during the 2016 fall migration.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28098273/high-definition-infrared-chemical-imaging-of-colorectal-tissue-using-a-spero-qcl-microscope
#4
B Bird, J Rowlette
Mid-infrared microscopy has become a key technique in the field of biomedical science and spectroscopy. This label-free, non-destructive technique permits the visualisation of a wide range of intrinsic biochemical markers in tissues, cells and biofluids by detection of the vibrational modes of the constituent molecules. Together, infrared microscopy and chemometrics is a widely accepted method that can distinguish healthy and diseased states with high accuracy. However, despite the exponential growth of the field and its research world-wide, several barriers currently exist for its full translation into the clinical sphere, namely sample throughput and data management...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28097602/dietary-supplementation-of-chromium-can-alleviate-negative-impacts-of-heat-stress-on-performance-carcass-yield-and-some-blood-hematology-and-chemistry-indices-of-growing-japanese-quail
#5
Mohamed Soliman El-Kholy, Mohamed Mohamed El-Hindawy, Mahmoud Alagawany, Mohamed Ezzat Abd El-Hack, Sabry Abd El-Gawad Abd El-Halim El-Sayed
The main objective of this work was to investigate the impact of dietary chromium supplementation on growth indices, carcass yield, and some hematological and biochemical blood parameters of growing Japanese quails subjected to heat stress. A total of 360 unsexed 2-week-old Japanese quail chicks were used in a 2 × 3 factorial arrangement that had two ambient temperatures (23 ± 2 and 33 ± 2 °C) and three dietary chromium (0.00, 500, and 1000 μg Cr/kg diet as chromium picolinate). For induction of heat stress, the room temperature was set at 33 ± 2 °C from 2 to 6 weeks of age...
January 17, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28097061/contrasting-molecular-and-morphological-evidence-for-the-identification-of-an-anomalous-buteo-a-cautionary-tale-for-hybrid-diagnosis
#6
William S Clark, Spencer C Galen, Joshua M Hull, Megan A Mayo, Christopher C Witt
An adult Buteo was found dead as a road-kill south of Sacramento, California, and was thought to represent the first state record of the eastern Red-shouldered Hawk (B. lineatus lineatus;). It is now a specimen in the Museum of Wildlife and Fisheries Biology (WFB 4816) at the University of California, Davis. We examined this specimen and found that many of its plumage characters differed from all other adult Red-shouldered Hawks examined, including nominate adults. Plumage markings and measurements were intermediate between Red-tailed Hawk (Buteo jamaicensis, ssp calurus) and Red-shouldered Hawk (ssp elegans), leading us to hypothesize that the bird was a hybrid...
2017: PeerJ
https://www.readbyqxmd.com/read/28096859/occurrence-and-intensity-of-anisakid-nematode-larvae-in-some-commercially-important-fish-species-in-persian-gulf
#7
Maryam Dadar, Alireza Alborzi, Rahim Peyghan, Milad Adel
BACKGROUND: Anisakid nematodes are common parasites of fish, mammals, fish-eating birds, and reptiles with a worldwide distribution, causing diseases in human, fish and important economic losses. METHODS: A preliminary epidemiological study was carried out on Anisakid nematodes larvae in some commercially important fish species to evaluate the anisakid nematode larvae from greater lizardfish, (Saurida tumbil), Japanese thread fin bream (Nemipterus japonicus), crocodile longtom (Tylosurus crocodilus crocodiles) and longfin trevally (Carangoides armatus) from the Persian Gulf of Iran...
April 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28096625/the-effect-of-dietary-supplementation-of-salts-of-organic-acid-on-production-performance-of-laying-hens
#8
Ravinder Dahiya, Raj Singh Berwal, Sajjan Sihag, Chandrashekhar Santosh Patil, Lalit
AIM: An experiment was conducted to evaluate the effect of supplementing different levels of salts of organic acid in the laying hen's diet on their production performance and egg quality parameters during a period of 16-week. MATERIALS AND METHODS: A total of 140 white leghorn laying hens at 24 weeks of age were randomly distributed to seven dietary treatment groups, i.e. T1 (control), T2 (0.5% sodium-butyrate), T3 (1.0% sodium-butyrate), T4 (1.5% sodium-butyrate), T5 (0...
December 2016: Veterinary World
https://www.readbyqxmd.com/read/28096429/lombard-effect-onset-times-reveal-the-speed-of-vocal-plasticity-in-a-songbird
#9
Samuel I Hardman, Sue Anne Zollinger, Klemen Koselj, Stefan Leitner, Rupert C Marshall, Henrik Brumm
Animals that use vocal signals to communicate often compensate for interference and masking from background noise by raising the amplitude of their vocalisations. This response has been termed the Lombard effect. However, despite more than a century of research little is known how quickly animals can adjust the amplitude of their vocalisations after the onset of noise. The ability to respond quickly to increases in noise levels would allow animals to avoid signal masking and ensure their calls continue to be heard, even if they are interrupted by sudden bursts of high amplitude noise...
January 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28095668/recovery-of-oswaldotrema-nacinovici-from-whimbrels-aves-in-korea
#10
Young-Il Lee, Ok-Sik Chung, Min Seo
Adult specimens of Oswaldotrema nacinovici (Digenea: Philophthalmidae) have been first identified in Korea from 2 migratory birds (whimbrels, Numenius phaeopus) which were found dead at a western seashore area near Gunsan. The worms were recovered in the intestine of these birds. The worms were morphologically characterized by a large ventral sucker in comparison to the oral sucker, an external seminal vesicle extending beyond the posterior margin of the ventral sucker, and conspicuous uterine seminal receptacle...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28094807/antimicrobial-probiotics-reduce-salmonella-enterica-in-turkey-gastrointestinal-tracts
#11
Brittany Forkus, Seth Ritter, Michail Vlysidis, Kathryn Geldart, Yiannis N Kaznessis
Despite the arsenal of technologies employed to control foodborne nontyphoidal Salmonella (NTS), infections have not declined in decades. Poultry is the primary source of NTS outbreaks, as well as the fastest growing meat sector worldwide. With recent FDA rules for phasing-out antibiotics in animal production, pressure is mounting to develop new pathogen reduction strategies. We report on a technology to reduce Salmonella enteritidis in poultry. We engineered probiotic E. coli Nissle 1917, to express and secrete the antimicrobial peptide, Microcin J25...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094608/surveillance-for-avian-influenza-virus-in-wild-birds-in-poland-2008-2015
#12
Edyta Świętoń, Krzysztof Wyrostek, Michał Jóźwiak, Monika Olszewska-Tomczyk, Katarzyna Domańska-Blicharz, Włodzimierz Meissner, Radosław Włodarczyk, Piotr Minias, Tomasz Janiszewski, Zenon Minta, Krzysztof Śmietanka
We tested wild birds in Poland during 2008-2015 for avian influenza virus (AIV). We took 10,312 swabs and feces samples from 6,314 live birds representing 12 orders and 84 bird species, mostly from orders Anseriformes and Charadriiformes, for testing and characterization by various PCR methods. From PCR-positive samples, we attempted to isolate and subtype the virus. The RNA of AIV was detected in 1.8% (95% confidence interval, 1.5%-2.1%) of birds represented by 48 Mallards ( Anas platyrhynchos ), 11 Mute Swans ( Cygnus olor ), 48 Common Teal ( Anas crecca ), three Black-headed Gulls (Chroicocephalus ridibundus), one Common Coot ( Fulica atra ), one Garganey (Spatula querquedula), and one unidentified bird species...
January 17, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28094607/detection-of-the-amphibian-chytrid-fungus-batrachochytrium-dendrobatidis-in-museum-specimens-of-andean-aquatic-birds-implications-for-pathogen-dispersal
#13
Patricia A Burrowes, Ignacio De la Riva
The occurrence of the pathogenic chytrid fungus Batrachochytrium dendrobatidis in the feet of live waterfowl has been documented, but the potential role of birds as dispersers has not been studied. We report the presence of B. dendrobatidis in the feet of preserved aquatic birds in the Bolivian high Andes during the time of drastic amphibian declines in the country. We sampled 48 aquatic birds from the Bolivian Andes that were preserved in museum collections. Birds were sampled for the presence of B. dendrobatidis DNA by swabbing, taking small pieces of tissue from toe webbing, or both...
January 17, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28094577/protective-role-of-bentonite-against-aflatoxin-b1-and-ochratoxin-a-induced-immunotoxicity-in-broilers
#14
Sheraz Ahmed Bhatti, Muhammad Zargham Khan, Muhammad Kashif Saleemi, Muhammad Saqib, Ahrar Khan, Zahoor Ul-Hassan
The present study was designed to investigate any ameliorative effects of bentonite (BN) against immuno-pathological alterations induced by dietary aflatoxin B1 (AFB1) or ochratoxin A (OTA) in broiler chicks. In one experiment, AFB1 (0.1, 0.2 or 0.6 mg/kg feed) was fed alone and par alley with bentonite clay (3.7 or 7.5 g/kg feed) to the broilers. In the second experiment, the broilers were given feed contaminated with OTA (0.15, 0.3 or 1.0 mg/kg feed) alone and in combination with bentonite clay (3...
January 17, 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28094324/early-life-adversity-accelerates-cellular-ageing-and-affects-adult-inflammation-experimental-evidence-from-the-european-starling
#15
Daniel Nettle, Clare Andrews, Sophie Reichert, Tom Bedford, Claire Kolenda, Craig Parker, Carmen Martin-Ruiz, Pat Monaghan, Melissa Bateson
Early-life adversity is associated with accelerated cellular ageing during development and increased inflammation during adulthood. However, human studies can only establish correlation, not causation, and existing experimental animal approaches alter multiple components of early-life adversity simultaneously. We developed a novel hand-rearing paradigm in European starling nestlings (Sturnus vulgaris), in which we separately manipulated nutritional shortfall and begging effort for a period of 10 days. The experimental treatments accelerated erythrocyte telomere attrition and increased DNA damage measured in the juvenile period...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28094028/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus
#16
Anders Hedenström, Gabriel Norevik, Kajsa Warfvinge, Arne Andersson, Johan Bäckman, Susanne Åkesson
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migration when weather is bad [1, 6]. In contrast, the North American chimney swift (Chaetura pelagica) and Vaux's swift (C...
November 21, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/28094027/persistent-females-and-compliant-males-coordinate-alarm-calling-in-diana-monkeys
#17
Claudia Stephan, Klaus Zuberbühler
Sexual dimorphisms in animal vocal behavior have been successfully explained by sexual selection theory (e.g., mammals [1-5]; birds [6, 7]; anurans [8, 9]), but this does not usually include alarm calls, which are thought to be the product of kin or individual selection (e.g., [10, 11]). Here, we present the results of playback experiments with wild Diana monkeys, a species with highly dimorphic predator-specific alarms, to investigate the communication strategies of males and females during predator encounters...
November 7, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/28093817/cryptic-inbreeding-depression-in-a-growing-population-of-a-long-lived-species
#18
Helen R Taylor, Rogan M Colbourne, Hugh A Robertson, Nicola J Nelson, Fred W Allendorf, Kristina M Ramstad
Genetic effects are often overlooked in endangered species monitoring, and populations showing positive growth are often assumed to be secure. However, the continued reproductive success of a few individuals may mask issues such as inbreeding depression, especially in long-lived species. Here, we test for inbreeding depression in little spotted kiwi (Apteryx owenii) by comparing a population founded with two birds to one founded with 40 birds, both from the same source population and both showing positive population growth...
January 17, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28093769/low-migratory-connectivity-is-common-in-long-distance-migrant-birds
#19
Tom Finch, Simon Butler, Aldina Franco, Will Cresswell
1.Estimating how much long-distance migrant populations spread out and mix during the non-breeding season (migratory connectivity) is essential for understanding and predicting population dynamics in the face of global change. 2.We quantify variation in population spread and inter-population mixing in long-distance, terrestrial migrant land-bird populations (712 individuals from 98 populations of 45 species, from tagging studies in the Neotropic and Afro-Palearctic flyways). We evaluate the Mantel test as a metric of migratory connectivity, and explore the extent to which variance in population spread can be explained simply by geography...
January 16, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28092966/avian-influenza-prevalence-among-hunter-harvested-birds-in-a-remote-canadian-first-nation-community
#20
Eric N Liberda, Richard Meldrum, Nadia A Charania, Robert Davey, Leonard Js Tsuji
INTRODUCTION: Avian influenza virus (AIV) prevalence has been associated with wild game and other bird species. The contamination of these birds may pose a greater risk to those who regularly hunt and consumed infected species. Due to resident concerns communicated by local Band Council, hunter-harvested birds from a remote First Nation community in subArctic Ontario, Canada were assessed for AIV. Hunters, and especially those who live a subsistence lifestyle, are at higher risk of AIV exposure due to their increased contact with wild birds, which represent an important part of their diet...
January 2017: Rural and Remote Health
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