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https://www.readbyqxmd.com/read/28098752/microbiological-load-of-edible-insects-found-in-belgium
#1
Rudy Caparros Megido, Sandrine Desmedt, Christophe Blecker, François Béra, Éric Haubruge, Taofic Alabi, Frédéric Francis
Edible insects are gaining more and more attention as a sustainable source of animal protein for food and feed in the future. In Belgium, some insect products can be found on the market, and consumers are sourcing fresh insects from fishing stores or towards traditional markets to find exotic insects that are illegal and not sanitarily controlled. From this perspective, this study aims to characterize the microbial load of edible insects found in Belgium (i.e., fresh mealworms and house crickets from European farms and smoked termites and caterpillars from a traditional Congolese market) and to evaluate the efficiency of different processing methods (blanching for all species and freeze-drying and sterilization for European species) in reducing microorganism counts...
January 13, 2017: Insects
https://www.readbyqxmd.com/read/28098514/edible-and-medicinal-mushrooms-emerging-brain-food-for-the-mitigation-of-neurodegenerative-diseases
#2
Chia-Wei Phan, Pamela David, Vikineswary Sabaratnam
There is an exponential increase in dementia in old age at a global level because of increasing life expectancy. The prevalence of neurodegenerative diseases such as dementia and Alzheimer's disease (AD) will continue to rise steadily, and is expected to reach 42 million cases worldwide in 2020. Despite the advancement of medication, the management of these diseases remains largely ineffective. Therefore, it is vital to explore novel nature-based nutraceuticals to mitigate AD and other age-related neurodegenerative disorders...
January 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28094258/interfacial-superconductivity-in-a-bi-collinear-antiferromagnetically-ordered-fete-monolayer-on-a-topological-insulator
#3
S Manna, A Kamlapure, L Cornils, T Hänke, E M J Hedegaard, M Bremholm, B B Iversen, Ph Hofmann, J Wiebe, R Wiesendanger
The discovery of high-temperature superconductivity in Fe-based compounds triggered numerous investigations on the interplay between superconductivity and magnetism, and on the enhancement of transition temperatures through interface effects. It is widely believed that the emergence of optimal superconductivity is intimately linked to the suppression of long-range antiferromagnetic (AFM) order, although the exact microscopic picture remains elusive because of the lack of atomically resolved data. Here we present spin-polarized scanning tunnelling spectroscopy of ultrathin FeTe1-xSex (x=0, 0...
January 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28091539/an-electromagnetic-modulator-based-on-electrically-controllable-metamaterial-analogue-to-electromagnetically-induced-transparency
#4
Yuancheng Fan, Tong Qiao, Fuli Zhang, Quanhong Fu, Jiajia Dong, Botao Kong, Hongqiang Li
Electromagnetically induced transparency (EIT) is a promising technology for the enhancement of light-matter interactions, and recent demonstrations of the EIT analogue realized in artificial micro-structured medium have remarkably reduced the extreme requirement for experimental observation of EIT spectrum. In this paper, we propose to electrically control the EIT-like spectrum in a metamaterial as an electromagnetic modulator. A diode acting as a tunable resistor is loaded in the gap of paired wires to inductively tune the magnetic resonance, which induces remarkable modulation on the EIT-like spectrum through the metamaterial sample...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28087661/disturbance-by-an-endemic-rodent-in-an-arid-shrubland-is-a-habitat-filter-effects-on-plant-invasion-and-taxonomical-functional-and-phylogenetic-community-structure
#5
Víctor M Escobedo, Rodrigo S Rios, Cristian Salgado-Luarte, Gisela C Stotz, Ernesto Gianoli
BACKGROUND AND AIMS: Disturbance often drives plant invasion and may modify community assembly. However, little is known about how these modifications of community patterns occur in terms of taxonomic, functional and phylogenetic structure. This study evaluated in an arid shrubland the influence of disturbance by an endemic rodent on community functional divergence and phylogenetic structure as well as on plant invasion. It was expected that disturbance would operate as a habitat filter favouring exotic species with short life cycles...
January 12, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28079207/hysteresis-phenomena-in-perovskite-solar-cells-the-many-and-varied-effects-of-ionic-accumulation
#6
Daniel A Jacobs, Yiliang Wu, Heping Shen, Chog Barugkin, Fiona J Beck, Thomas P White, Klaus Weber, Kylie R Catchpole
The issue of hysteresis in perovskite solar cells has now been convincingly linked to the presence of mobile ions within the perovskite layer. Here we test the limits of the ionic theory by attempting to account for a number of exotic characterization results using a detailed numerical device model that incorporates ionic charge accumulation at the perovskite interfaces. Our experimental observations include a temporary enhancement in open-circuit voltage following prolonged periods of negative bias, dramatically S-shaped current-voltage sweeps, decreased current extraction following positive biasing or "inverted hysteresis", and non-monotonic transient behaviours in the dark and the light...
January 12, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28078425/odorant-receptors-and-antennal-lobe-morphology-offer-a-new-approach-to-understanding-olfaction-in-the-asian-longhorned-beetle
#7
Robert F Mitchell, Loyal P Hall, Peter F Reagel, Duane D McKenna, Thomas C Baker, John G Hildebrand
The Asian longhorned beetle Anoplophora glabripennis (Motchulsky) is an exotic forest pest that has repeatedly invaded North America and Europe from Asia, and has the potential to kill millions of trees and cause billions of dollars in damage. Traps baited with an attractive mixture of volatile organic compounds from hosts have been of limited success in monitoring invasion sites. We propose that lures might be improved through studying the olfactory system of adult beetles, especially the gene family of odorant receptors (ORs) and the structure of the antennal lobes of the brain...
January 11, 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28078242/saffron-omics-the-challenges-of-integrating-omic-technologies
#8
REVIEW
Sameera Sastry Panchangam, Maryam Vahedi, Mohankumar Janardhan Megha, Anuj Kumar, Kaamini Raithatha, Raithatha Suravajhala, Pratap Reddy
Saffron is one of the highly exotic spices known for traditional values and antiquity. It is used for home décor besides serving as a colorant flavor and is widely known for medicinal value. Over the last few years, saffron has garnered a lot of interest due to its anti-cancer, anti-mutagenic, anti-oxidant and immunomodulatory properties. Integration of systems biology approaches with wide applications of saffron remains a growing challenge as new techniques and methods advance. Keeping in view of the dearth of a review summarizing the omics and systems biology of saffron, we bring an outline on advancements in integrating omic technologies, the medicinal plant has seen in recent times...
November 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/28077064/an-internet-based-bioinformatics-toolkit-for-plant-biosecurity-diagnosis-and-surveillance-of-viruses-and-viroids
#9
Roberto A Barrero, Kathryn R Napier, James Cunnington, Lia Liefting, Sandi Keenan, Rebekah A Frampton, Tamas Szabo, Simon Bulman, Adam Hunter, Lisa Ward, Mark Whattam, Matthew I Bellgard
BACKGROUND: Detection and preventing entry of exotic viruses and viroids at the border is critical for protecting plant industries trade worldwide. Existing post entry quarantine screening protocols rely on time-consuming biological indicators and/or molecular assays that require knowledge of infecting viral pathogens. Plants have developed the ability to recognise and respond to viral infections through Dicer-like enzymes that cleave viral sequences into specific small RNA products. Many studies reported the use of a broad range of small RNAs encompassing the product sizes of several Dicer enzymes involved in distinct biological pathways...
January 11, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28074625/heterocumulene-sulfinyl-radical-ocnso
#10
Zhuang Wu, Qifan Liu, Jian Xu, Hailong Sun, Dingqing Li, Chao Song, Diego M Andrada, Gernot Frenking, Tarek Trabelsi, Joseph S Francisco, Xiaoqing Zeng
Neutral five-atomic cumulenes formally consisting of two pseudohalogens (e.g., NCO, NNN, NSO) by sharing the central nitrogen atom are exotic species that have been barely studied. Through flash vacuum pyrolysis of CF3 S(O)NCO at ca. 1200 K, sulfinyl isocyanate, bearing resonance structures of O=C-N=S=O and O=C=N-S=O, has been generated in the gas phase and subsequently characterized in cryogenic matrices (Ar and N2 ). Its reversible conformational (syn and anti) interconversion and photodecomposition were observed...
January 11, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28071887/polarization-tailored-fano-interference-in-plasmonic-crystals-a-mueller-matrix-model-of-anisotropic-fano-resonance
#11
Subir Kumar Ray, Shubham Chandel, Ankit Kumar Singh, Abhishek Kumar, Arpita Mandal, Subhradeep Misra, Partha Mitra, Nirmalya Ghosh
Fano resonance is observed in a wide range of micro and nano optical systems and has been a subject of intensive investigations due to their numerous potential applications. Methods that can control or modulate Fano resonance by tuning some experimentally accessible parameters are highly desirable for realistic applications. Here we present a simple yet elegant approach using Mueller matrix formalism for controlling the Fano interference effect and engineering the resulting asymmetric spectral line shape in anisotropic optical system...
January 10, 2017: ACS Nano
https://www.readbyqxmd.com/read/28070291/an-exotic-parasitoid-provides-an-invasional-lifeline-for-native-parasitoids
#12
Joanna K Konopka, Tim Haye, Tara Gariepy, Peter Mason, David Gillespie, Jeremy N McNeil
The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels. It has been postulated that recent introduction of the brown marmorated stinkbug (Halyomorpha halys (Stål)) represents an evolutionary trap for native parasitoids, as they accept H. halys egg masses as a host but produce no viable progeny. Interspecific interactions between European egg parasitoid, Trissolcus cultratus (Mayr), and an Asian parasitoid, Trissolcus japonicus (Ashmead), were assessed by providing egg masses to T...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28067241/multiple-dirac-cones-at-the-surface-of-the-topological-metal-labi
#13
Jayita Nayak, Shu-Chun Wu, Nitesh Kumar, Chandra Shekhar, Sanjay Singh, Jörg Fink, Emile E D Rienks, Gerhard H Fecher, Stuart S P Parkin, Binghai Yan, Claudia Felser
The rare-earth monopnictide LaBi exhibits exotic magneto-transport properties, including an extremely large and anisotropic magnetoresistance. Experimental evidence for topological surface states is still missing although band inversions have been postulated to induce a topological phase in LaBi. In this work, we have revealed the existence of surface states of LaBi through the observation of three Dirac cones: two coexist at the corners and one appears at the centre of the Brillouin zone, by employing angle-resolved photoemission spectroscopy in conjunction with ab initio calculations...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28059373/theoretical-and-experimental-analysis-of-instability-of-continuous-wave-mode-locking-towards-high-fundamental-repetition-rate-in-tm-sup-3-sup-doped-fiber-lasers
#14
H Cheng, W Lin, T Qiao, S Xu, Z Yang
With increasing demand on a laser source in the gigahertz pulse repetition rate regime, clarification on the mechanism of instability in high repetition rate fiber lasers - a promising alternative to solid state lasers - is of great importance and can potentially offer guideline for continuous wave (CW) mode locking. Here we present a theoretical approach together with relevant experimental corroboration to analyze the instabilities. By means of appropriate approximations, regimes from Q-switched mode locking, CW mode locking and pulsation are theoretically identified...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28058436/pentagonal-five-center-four-electron-%C3%AF-bond-in-ternary-b3n2h5-cluster-an-extension-of-the-concept-of-three-center-four-electron-%C3%AF-bond
#15
Da-Zhi Li, Lin-Yan Feng, Ling Pei, Li-Juan Zhang, Shu-Guo Wu, Hua-Jin Zhai
Boron-based heteroatomic rings can have exotic chemical bonding, in which the p lone-pairs of heteroatoms manage to participate in delocalized π bonding, compensating for boron's electron-deficiency. We explore herein the bonding properties of ternary B-N-H systems with a pentagonal ring, using the B3N2H5(0/-/2-) clusters as examples. Computational structural searches lead to perfectly planar C2v B3N2H5 (1, (1)A1) and C2v B3N2H5(-) (2, (2)B1) as global minima for the neutral species and monoanion, which feature a pentagonal B3N2 ring...
January 18, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28056950/laboratory-cohabitation-challenge-model-for-shrimp-hepatopancreatic-microsporidiosis-hpm-caused-by-enterocytozoon-hepatopenaei-ehp
#16
Paul Vinu Salachan, Pattana Jaroenlak, Siripong Thitamadee, Ornchuma Itsathitphaisarn, Kallaya Sritunyalucksana
BACKGROUND: Enterocytozoon hepatopenaei (EHP) causes hepatopancreatic microsporidiosis (HPM) in shrimp. It is probably endemic in Australasia and was first characterized and named from the giant or black tiger shrimp Penaeus monodon from Thailand in 2009. Later, it was also found to infect exotic Penaeus vannamei imported for cultivation in Asia. HPM is not normally associated with shrimp mortality, but information from shrimp farmers indicates that it is associated with significant growth retardation that is not clearly noticeable until 2-3 months of cultivation...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28052938/increased-nitrogen-input-enhances-kandelia-obovata-seedling-growth-in-the-presence-of-invasive-spartina-alterniflora-in-subtropical-regions-of-china
#17
Xiaowei Cui, Weimin Song, Jianxiang Feng, Dai Jia, Jiemin Guo, Zhonglei Wang, Hao Wu, Fei Qi, Jie Liang, Guanghui Lin
Mangroves in China are severely affected by the rapid invasion of the non-native species Spartina alterniflora Although many studies have addressed the possible impacts of S. alterniflora on the performance of mangrove seedlings, how excessive nitrogen (N) input due to eutrophication affects the interactions between mangrove species and S. alterniflora remains unknown. Here, we report the results from a mesocosm experiment using seedlings of the native mangrove species Kandelia obovata and the exotic S. alterniflora grown in monoculture and mixed culture under no nitrogen addition and nitrogen (N) addition treatments for 18 months...
January 2017: Biology Letters
https://www.readbyqxmd.com/read/28051145/enhancement-effect-of-mass-imbalance-on-fulde-ferrell-larkin-ovchinnikov-type-of-pairing-in-fermi-fermi-mixtures-of-ultracold-quantum-gases
#18
Jibiao Wang, Yanming Che, Leifeng Zhang, Qijin Chen
Ultracold two-component Fermi gases with a tunable population imbalance have provided an excellent opportunity for studying the exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states, which have been of great interest in condensed matter physics. However, the FFLO states have not been observed experimentally in Fermi gases in three dimensions (3D), possibly due to their small phase space volume and extremely low temperature required for an equal-mass Fermi gas. Here we explore possible effects of mass imbalance, mainly in a (6)Li-(40)K mixture, on the one-plane-wave FFLO phases for a 3D homogeneous case at the mean-field level...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28047568/we-fg-bra-12-research-work-of-the-radio-dynamic-treatment-mechanism
#19
Quanshi Zhang, Q Y Sun, G P Xiao, J Zeng, L Wang, L L Chen, C M C Ma
PURPOSE: The finite penetration depth of Laser light has limited clinical applications for PDT. This present work investigates the activation of photosensitizers using Cerenkov light emission from 45MV photon beams produced in an LA45 cancer therapy accelerator. We have named this new treatment technique Radio-Dynamic Therapy (RDT). METHODS: Monte Carlo simulations were made on various Cerenkov emission energies and their spectroscopy in excited target areas in order to estimate their photosensitizer inner activation efficiency...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045027/properties-of-the-exotic-metastable-st12-germanium-allotrope
#20
Zhisheng Zhao, Haidong Zhang, Duck Young Kim, Wentao Hu, Emma S Bullock, Timothy A Strobel
The optical and electronic properties of semiconducting materials are of great importance to a vast range of contemporary technologies. Diamond-cubic germanium is a well-known semiconductor, although other 'exotic' forms may possess distinct properties. In particular, there is currently no consensus for the band gap and electronic structure of ST12-Ge (tP12, P43212) due to experimental limitations in sample preparation and varying theoretical predictions. Here we report clear experimental and theoretical evidence for the intrinsic properties of ST12-Ge, including the first optical measurements on bulk samples...
January 3, 2017: Nature Communications
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