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https://www.readbyqxmd.com/read/28549379/dynamically-tunable-plasmon-induced-transparency-in-on-chip-graphene-based-asymmetrical-nanocavity-coupled-waveguide-system
#1
Pingping Qiu, Weibin Qiu, Zhili Lin, Houbo Chen, Junbo Ren, Jia-Xian Wang, Qiang Kan, Jiao-Qing Pan
A graphene-based on-chip plasmonic nanostructure composed of a plasmonic bus waveguide side-coupled with a U-shaped and a rectangular nanocavities has been proposed and modeled by using the finite element method in this paper. The dynamic tunability of the plasmon-induced transparency (PIT) windows has been investigated. The results reveal that the PIT effects can be tuned via modifying the chemical potential of the nanocavities and plasmonic bus waveguide or by varying the geometrical parameters including the location and width of the rectangular nanocavity...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28549368/developing-population-models-a-systematic-approach-for-pesticide-risk-assessment-using-herbaceous-plants-as-an-example
#2
Amelie Schmolke, Katherine E Kapo, Pamela Rueda-Cediel, Pernille Thorbek, Richard Brain, Valery Forbes
Population models are used as tools in species management and conservation and are increasingly recognized as important tools in pesticide risk assessments. A wide variety of population model applications and resources on modeling techniques, evaluation and documentation can be found in the literature. In this paper, we add to these resources by introducing a systematic, transparent approach to developing population models. The decision guide that we propose is intended to help model developers systematically address data availability for their purpose and the steps that need to be taken in any model development...
May 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28549328/enhanced-photocatalytic-hydrogen-production-from-aqueous-sulfide-sulfite-solution-by-zno0-6s0-4-with-simultaneous-dye-degradation-under-visible-light-irradiation
#3
Ka Him Chu, Liqun Ye, Wei Wang, Dan Wu, Donald Ka Long Chan, Cuiping Zeng, Ho Yin Yip, Jimmy C Yu, Po Keung Wong
Photocatalytic hydrogen (H2) production was performed by visible-light-driven (VLD) ternary photocatalyst, zinc oxysulfide (ZnO0.6S0.4) in the presence of sulfide/sulfite (S2(2-)/SO3(2-)) sacrificing system, with simultaneous azo-dye Reactive Violet 5 (RV5) degradation. Enhancement in both RV5 degradation and H2 production was achieved, with the promotion of H2 production after decolorization of RV5. The effect of initial concentration of RV5 was found to be influential on the enhancement of H2 during the simultaneous processes, with a maximum of 110% increase of H2 produced...
May 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28549320/light-emission-miracle-in-the-sea-and-preeminent-applications-of-bioluminescence-in-recent-new-biotechnology
#4
Sana Sharifian, Ahmad Homaei, Roohullah Hemmati, Khosro Khajeh
Bioluminescence is referred to the light emission by a living organism due to a specific biochemical reaction. This interesting feature of the organisms could highly influences behavioral and ecosystem dynamics. Luminescence, mostly observed in marine species, is generally higher in deep-living genera than in benthic or shallow organisms. However, among creatures living in land, fireflies, beetles, springtails and fungi have shown some bioluminescent activities. Classically, the emission of light is catalyzed by luciferase from a substrate...
May 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28549250/the-clinical-communication-and-information-challenges-associated-with-the-psychosexual-aspects-of-prostate-cancer-treatment
#5
Susan A Speer, Samantha R Tucker, Rebecca McPhillips, Sarah Peters
RATIONALE: Prostate cancer and its treatment have significant sexual side effects that necessitate timely patient information and open communication with healthcare professionals. However, very little is known about men's experiences of talking to clinicians about the psychosexual difficulties associated with the disease. OBJECTIVE: This study aims to advance understanding of men's perceptions of the communication and information challenges associated with the psychosexual aspects of prostate cancer and its treatment...
May 18, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28549194/disentangling-timing-of-admixture-patterns-of-introgression-and-phenotypic-indicators-in-a-hybridizing-wolf-population
#6
M Galaverni, R Caniglia, L Pagani, E Fabbri, A Boattini, E Randi
Hybridization is a natural or anthropogenic process that can deeply affect the genetic make-up of populations, possibly decreasing individual fitness but sometimes favouring local adaptations. The population of Italian wolves (Canis lupus), after protracted demographic declines and isolation, is currently expanding in anthropic areas, with documented cases of hybridization with stray domestic dogs. However, identifying admixture patterns in deeply introgressed populations is far from trivial. In this study, we used a panel of 170,000 SNPs analysed with multivariate, Bayesian and local ancestry reconstruction methods to identify hybrids, estimate their ancestry proportions and timing since admixture...
May 26, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28549193/label-free-direct-localization-and-relative-quantitation-of-the-rna-nucleobase-methylations-m6a-m5c-m3u-and-m5u-by-top-down-mass-spectrometry
#7
Heidelinde Glasner, Christian Riml, Ronald Micura, Kathrin Breuker
Nucleobase methylations are ubiquitous posttranscriptional modifications of ribonucleic acids (RNA) that can substantially increase the structural diversity of RNA in a highly dynamic fashion with implications for gene expression and human disease. However, high throughput, deep sequencing does not generally provide information on posttranscriptional modifications (PTMs). A promising alternative approach for the characterization of PTMs, i.e. their identification, localization, and relative quantitation, is top-down mass spectrometry (MS)...
May 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28549169/regulatory-dynamics-of-11p13-suggest-a-role-for-ehf-in-modifying-cf-lung-disease-severity
#8
Lindsay R Stolzenburg, Rui Yang, Jenny L Kerschner, Sara Fossum, Matthew Xu, Andrew Hoffmann, Kay-Marie Lamar, Sujana Ghosh, Sarah Wachtel, Shih-Hsing Leir, Ann Harris
Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene cause cystic fibrosis (CF), but are not good predictors of lung phenotype. Genome-wide association studies (GWAS) previously identified additional genomic sites associated with CF lung disease severity. One of these, at chromosome 11p13, is an intergenic region between Ets homologous factor (EHF) and Apaf-1 interacting protein (APIP). Our goal was to determine the functional significance of this region, which being intergenic is probably regulatory...
May 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28549140/the-relationships-between-income-inequality-welfare-regimes-and-aggregate-health-a-systematic-review
#9
Ki-Tae Kim
: When analysing the relationships between income inequality, welfare regimes and aggregate health at the cross-national level, previous primary articles and systematic reviews reach inconsistent conclusions. Contrary to theoretical expectations, equal societies or the Social Democratic welfare regime do not always have the best aggregate health when compared with those of other relatively unequal societies or other welfare regimes. This article will shed light on the controversial subjects with a new decomposition systematic review method...
June 1, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28549084/en-face-time-domain-optical-coherence-tomography-with-dynamic-focus-for-high-resolution-imaging
#10
Mohammad R N Avanaki, Adrian Podoleanu
No abstract text is available yet for this article.
May 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28549069/correction-intrinsic-noise-profoundly-alters-the-dynamics-and-steady-state-of-morphogen-controlled-bistable-genetic-switches
#11
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pcbi.1005154.].
May 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28549066/alternative-exon-definition-events-control-the-choice-between-nuclear-retention-and-cytoplasmic-export-of-u11-u12-65k-mrna
#12
Jens Verbeeren, Bhupendra Verma, Elina H Niemelä, Karen Yap, Eugene V Makeyev, Mikko J Frilander
Cellular homeostasis of the minor spliceosome is regulated by a negative feed-back loop that targets U11-48K and U11/U12-65K mRNAs encoding essential components of the U12-type intron-specific U11/U12 di-snRNP. This involves interaction of the U11 snRNP with an evolutionarily conserved splicing enhancer giving rise to unproductive mRNA isoforms. In the case of U11/U12-65K, this mechanism controls the length of the 3' untranslated region (3'UTR). We show that this process is dynamically regulated in developing neurons and some other cell types, and involves a binary switch between translation-competent mRNAs with a short 3'UTR to non-productive isoforms with a long 3'UTR that are retained in the nucleus or/and spliced to the downstream amylase locus...
May 26, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28548989/imaging-adult-patients-with-fontan-circulation
#13
Salil Ginde, Benjamin H Goot, Peter C Frommelt
PURPOSE OF REVIEW: Survival after the Fontan procedure for palliation of single ventricle congenital heart disease has improved. However, adults with Fontan circulation are at risk for several complications including heart failure, thromboembolism, and protein-losing enteropathy. This review discusses the role of noninvasive imaging for surveillance and early detection of anatomic and functional abnormalities of the Fontan circulation that can impact the risk for Fontan failure over time...
May 25, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28548923/tubb3-overexpression-has-a-negligible-effect-on-the-sensitivity-to-taxol-in-cultured-cell-lines
#14
Mihoko A Tame, Anna G Manjón, Daria Belokhvostova, Jonne A Raaijmakers, René H Medema
Microtubules are cellular targets for a variety of anticancer therapies because of their critical function in mitosis. Taxol belongs to a class of microtubule targeting agents that suppresses microtubule dynamics and interferes with the functioning of the mitotic spindle, thereby effectively blocking cell cycle progression of rapidly proliferating tumor cells. Despite its antitumor activity, drug resistance remains a common obstacle in improving its overall clinical efficacy. Previous studies have shown that the expression of a specific β-tubulin isotype, βIII-tubulin/TUBB3, is dysregulated in drug-refractory tumors...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548921/repeatability-testing-of-a-new-hybrid-iii-6-year-old-atd-lower-extremity
#15
Laura C Boucher, Yeonsu Ryu, Yun-Seok Kang, John H Bolte
OBJECTIVE: Vehicle safety is improving, thus decreasing the number of life-threatening injuries and increasing the need for research in other areas of the body. The current child anthropomorphic test device (ATD) does not have the capabilities or instrumentation to measure many of the potential interactions between the lower extremity and the vehicle interior. A prototype Hybrid III 6-year-old ATD lower extremity (ATD-LE) was developed and contains a tibia load cell and a more biofidelic ankle...
May 29, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28548902/er-mitochondria-signaling-regulates-autophagy
#16
Patricia Gomez-Suaga, Sebastien Paillusson, Christopher C J Miller
The endoplasmic reticulum (ER) and mitochondria form tight functional contacts that regulate a number of key cellular processes. The formation of these contacts involves "tethering proteins" that function to recruit regions of ER to mitochondria. The integral ER protein VAPB (VAMP associated protein B and C) binds to the outer mitochondrial membrane protein, RMDN3/PTPIP51 (regulator of microtubule dynamics 3) to form one such set of tethers. Recently, we showed that the VAPB-RMDN3 tethers regulate macroautophagy/autophagy...
May 26, 2017: Autophagy
https://www.readbyqxmd.com/read/28548893/dynamic-decision-making-learning-processes-and-new-research-directions
#17
Cleotilde Gonzalez, Pegah Fakhari, Jerome Busemeyer
OBJECTIVE: The aim of this manuscript is to provide a review of contemporary research and applications on dynamic decision making (DDM). BACKGROUND: Since early DDM studies, there has been little systematic progress in understanding decision making in complex, dynamic systems. Our review contributes to better understanding of decision making processes in dynamic tasks. METHOD: We discuss new research directions in DDM to highlight the value of simplification in the study of complex decision processes, divided into experimental and theoretical/computational approaches, and focus on problems involving control tasks and search-and-choice tasks...
May 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28548861/emergent-optical-phononic-modes-upon-nanoscale-mesogenic-phase-transitions
#18
Dima Bolmatov, Mikhail Zhernenkov, Lewis Sharpnack, Dena M Agra-Kooijman, Satyendra Kumar, Alexey Suvorov, Ronald Pindak, Yong Q Cai, Alessandro Cunsolo
The investigation of phononic collective excitations in soft matter systems at the molecular scale has always been challenging due to limitations of experimental techniques in resolving low-energy modes. Recent advances in Inelastic X-ray Scattering (IXS) enabled the study of such systems with unprecedented spectral contrast at meV excitation energies. In particular, it has become possible to shed light on the low-energy collective motions in materials whose morphology and phase behavior can easily be manipulated, such as mesogenic systems...
May 26, 2017: Nano Letters
https://www.readbyqxmd.com/read/28548858/theoretical-study-of-acetic-acid-association-based-on-hydrogen-bonding-mechanism
#19
Minhua Zhang, Lihang Chen, Huaming Yang, Jing Ma
Combining molecular dynamics (MD) and quantum chemistry (QM) simulation, the association mechanism of acetic acid systems were examined. DFT method was proposed to compare the hydrogen-bonding energy of variable acetic acid dimers, and definitely provided the stable dimers configuration. Geometry parameters of dimers were also obtained by QM calculations, which were taken as the characteristic criteria for further MD analysis. Proportion of different acetic acid dimers in gas phase was obtained by Radial distribution function (RDF) analysis, and cyclic dimer with two O=c-Hoacid hydrogen bonds was demonstrated as the most stable structure...
May 26, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28548857/experimental-demonstration-of-complete-180-o-reversal-of-magnetization-in-isolated-co-nanomagnets-on-a-pmn-pt-substrate-with-voltage-generated-strain
#20
Ayan Kumar Biswas, Hasnain Ahmad, Jayasimha Atulasimha, Supriyo Bandyopadhyay
Rotating the magnetization of a shape anisotropic magnetostrictive nanomagnet with voltage-generated stress/strain dissipates much less energy than most other magnetization rotation schemes, but its application to writing bits in non-volatile magnetic memory has been hindered by the fundamental inability of stress/strain to rotate magnetization by full 180(o). Normally, stress/strain can rotate the magnetization of a shape anisotropic elliptical nanomagnet by only up to 90(o), resulting in incomplete magnetization reversal...
May 26, 2017: Nano Letters
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