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https://www.readbyqxmd.com/read/28092791/minor-physical-anomalies-in-bipolar-i-and-bipolar-ii-disorders-results-with-the-m%C3%A3-hes-scale
#1
Hajnalka Berecz, Györgyi Csábi, Sára Jeges, Róbert Herold, Maria Simon, Tamás Halmai, Dániel Trixler, András Hajnal, Ákos Levente Tóth, Tamás Tényi
Minor physical anomalies (MPAs) are external markers of abnormal brain development, so the more common appearence of these signs among bipolar I and bipolar II patients can confirm the possibility of a neurodevelopmental deficit in these illnesses. The aim of the present study was to investigate the rate and topological profile of minor physical anomalies in patients with bipolar I and - first in literature - with bipolar II disorders compared to matched healthy control subjects. Using a list of 57 minor physical anomalies (the Méhes Scale), 30 bipolar I and 30 bipolar II patients, while as a comparison 30 matched healthy control subjects were examined...
January 5, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28092688/buckled-two-dimensional-xene-sheets
#2
Alessandro Molle, Joshua Goldberger, Michel Houssa, Yong Xu, Shou-Cheng Zhang, Deji Akinwande
Silicene, germanene and stanene are part of a monoelemental class of two-dimensional (2D) crystals termed 2D-Xenes (X = Si, Ge, Sn and so on) which, together with their ligand-functionalized derivatives referred to as Xanes, are comprised of group IVA atoms arranged in a honeycomb lattice - similar to graphene but with varying degrees of buckling. Their electronic structure ranges from trivial insulators, to semiconductors with tunable gaps, to semi-metallic, depending on the substrate, chemical functionalization and strain...
January 16, 2017: Nature Materials
https://www.readbyqxmd.com/read/28092592/adaptive-fuzzy-bounded-control-for-consensus-of-multiple-strict-feedback-nonlinear-systems
#3
Wei Wang, Shaocheng Tong
This paper studies the adaptive fuzzy bounded control problem for leader-follower multiagent systems, where each follower is modeled by the uncertain nonlinear strict-feedback system. Combining the fuzzy approximation with the dynamic surface control, an adaptive fuzzy control scheme is developed to guarantee the output consensus of all agents under directed communication topologies. Different from the existing results, the bounds of the control inputs are known as a priori, and they can be determined by the feedback control gains...
January 10, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28092586/consensus-problem-over-high-order-multiagent-systems-with-uncertain-nonlinearities-under-deterministic-and-stochastic-topologies
#4
Hamed Rezaee, Farzaneh Abdollahi
The leaderless consensus problem over a class of high-order nonlinear multiagent systems (MASs) is studied. A robust protocol is proposed which guarantees achieving consensus in the network in the presences of uncertainties in agents models. Achieving consensus in the case of stochastic links failure is studied as well. Based on the concept super-martingales, it is shown that if the probability of the network connectivity is not zero, under some conditions, achieving almost sure consensus in the network can be guaranteed...
December 6, 2016: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28092503/propagation-modeling-and-analysis-of-molecular-motors-in-molecular-communication
#5
Youssef Chahibi, Ian F Akyildiz, Ilangko Balasingham
Molecular motor networks (MMNs) are networks constructed from molecular motors to enable nanomachines to perform coordinated tasks of sensing, computing, and actuation at the nano- and micro- scales. Living cells are naturally enabled with this same mechanism to establish point-to-point communication between different locations inside the cell. Similar to a railway system, the cytoplasm contains an intricate infrastructure of tracks, named microtubules, interconnecting different internal components of the cell...
December 2016: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28092417/dense-semi-clathrates-at-high-pressure-a-study-of-the-water-tert-butylamine-system
#6
Rubén Granero-García, Andrzej Falenty, Francesca Paola Anna Fabbiani
In situ high-pressure crystallization and diffraction techniques have been applied to obtain two very structurally-distinct semi-clathrates of the tert-butylamine-water system with hydration numbers 5.65 and 5.8, respectively, thereby considerably reducing a notable hydration gap between the monohydrate and the 7¼-hydrate that results when crystallization space is explored by temperature alone. Both structures can be considered as an intriguing solid-state example of hydrophobic hydration in which the water network creates wide tert-butylamine-filled channels stabilized by cross-linking hydrogen bonds...
January 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28092154/correlating-the-network-topology-of-oxide-glasses-with-their-chemical-durability
#7
Nerea Mascaraque, Mathieu Bauchy, Morten M Smedskjaer
Glasses gradually dissolve and corrode when they are exposed to aqueous solutions and for many applications it is necessary to understand and predict the kinetics of the glass dissolution. Despite the recent progress in understanding the impact of chemical composition on the dissolution rate, a detailed understanding of the structural and topological origin of chemical durability in solutions of different pH is still largely lacking. Such knowledge would enable the tailoring of glass dissolution kinetics as a function of chemical composition...
January 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28092130/topological-valleytronic-and-optical-properties-of-monolayer-pbs
#8
Wenhui Wan, Yugui Yao, Liangfeng Sun, Cheng-Cheng Liu, Fan Zhang
A PbS monolayer is demonstrated to be a novel platform for topological, valleytronic, and optical phenomena. Compressive strain can turn the trivial monolayer into topological insulators. Optical pumping can facilitate charge, spin, and valley Hall effects tunable by external strain and light ellipticity. Similar results apply to other IV-VI semiconductors.
January 16, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28091955/genome-wide-exploration-of-silicon-si-transporter-genes-lsi1-and-lsi2-in-plants-insights-into-si-accumulation-status-capacity-of-plants
#9
Recep Vatansever, Ibrahim Ilker Ozyigit, Ertugrul Filiz, Nermin Gozukara
Silicon (Si) is a nonessential, beneficial micronutrient for plants. It increases the plant stress tolerance in relation to its accumulation capacity. In this work, root Si transporter genes were characterized in 17 different plants and inferred for their Si-accumulation status. A total of 62 Si transporter genes (31 Lsi1 and 31 Lsi2) were identified in studied plants. Lsi1s were 261-324 residues protein with a MIP family domain whereas Lsi2s were 472-547 residues with a citrate transporter family domain. Lsi1s possessed characteristic sequence features that can be employed as benchmark in prediction of Si-accumulation status/capacity of the plants...
January 13, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28091652/a-novel-3-d-photoluminescent-cuprous-chloride-polymer-based-on-bifunctional-imidazolate-tetrazolate-bridges
#10
Qiuling Tang, Jian Zhou, Filipe A Almeida Paz, Lianshe Fu, Hong Xiao, Qi Zhou, Ju Li
A novel 3-D cuprous chloride polymer [CuCl(μ5-L)]n (1, HL = 1-tetrazole-4-imidazole-benzene) has been hydrothermally synthesized and structurally characterized. 1 displays a 3-D network with a bimodal fsc-3,5-Cmce-2 topological type constructed by the linkages of rare [CuCl](+) cations and L(-) ligands. The photoluminescence properties and density functional theory calculations of 1 have also been studied.
January 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28091520/phantom-vortices-hidden-angular-momentum-in-ultracold-dilute-bose-einstein-condensates
#11
Storm E Weiner, Marios C Tsatsos, Lorenz S Cederbaum, Axel U J Lode
Vortices are essential to angular momentum in quantum systems such as ultracold atomic gases. The existence of quantized vorticity in bosonic systems stimulated the development of the Gross-Pitaevskii mean-field approximation. However, the true dynamics of angular momentum in finite, interacting many-body systems like trapped Bose-Einstein condensates is enriched by the emergence of quantum correlations whose description demands more elaborate methods. Herein we theoretically investigate the full many-body dynamics of the acquisition of angular momentum by a gas of ultracold bosons in two dimensions using a standard rotation procedure...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28090721/an-ultrastable-and-easily-regenerated-hydrogen-bonded-organic-molecular-framework-with-permanent-porosity
#12
Falu Hu, Caiping Liu, Mingyan Wu, Jiandong Pang, Feilong Jiang, Daqiang Yuan, Maochun Hong
A robust hydrogen-bonded organic framework HOF-TCBP (H4 TCBP=3,3',5,5'-tetrakis-(4-carboxyphenyl)-1,1'-biphenyl) has been successfully constructed and structurally characterized. It possesses a permanent 3D porous structure with a 5-fold interpenetrated dia topological network. This activated HOF-TCBP has a high BET surface area of 2066 m(2)  g(-1) and is capable of highly selective adsorption and separation of light hydrocarbons under ambient conditions. It shows excellent thermal stability, as demonstrated by PXRD experiments and N2 adsorption tests...
January 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28089543/optimal-regulatory-circuit-topologies-for-fold-change-detection
#13
Miri Adler, Pablo Szekely, Avi Mayo, Uri Alon
Evolution repeatedly converges on only a few regulatory circuit designs that achieve a given function. This simplicity helps us understand biological networks. However, why so few circuits are rediscovered by evolution is unclear. We address this question for the case of fold-change detection (FCD): a response to relative changes of input rather than absolute changes. Two types of FCD circuits recur in biological systems-the incoherent feedforward and non-linear integral-feedback loops. We performed an analytical screen of all three-node circuits in a class comprising ∼500,000 topologies...
January 10, 2017: Cell Systems
https://www.readbyqxmd.com/read/28089452/co-folding-of-a-flif-flig-split-domain-forms-the-basis-of-the-ms-c-ring-interface-within-the-bacterial-flagellar-motor
#14
Michael J Lynch, Robert Levenson, Eun A Kim, Ria Sircar, David F Blair, Frederick W Dahlquist, Brian R Crane
The interface between the membrane (MS) and cytoplasmic (C) rings of the bacterial flagellar motor couples torque generation to rotation within the membrane. The structure of the C-terminal helices of the integral membrane protein FliF (FliFC) bound to the N terminal domain of the switch complex protein FliG (FliGN) reveals that FliGN folds around FliFC to produce a topology that closely resembles both the middle and C-terminal domains of FliG. The interface is consistent with solution-state nuclear magnetic resonance, small-angle X-ray scattering, in vivo interaction studies, and cellular motility assays...
December 31, 2016: Structure
https://www.readbyqxmd.com/read/28088706/topological-imaging-in-bounded-elastic-media
#15
Emma Lubeigt, Serge Mensah, Sandrine Rakotonarivo, Jean-François Chaix, François Baqué, Gilles Gobillot
Detecting, imaging and sizing defects in a bounded elastic medium is still a difficult task, especially when access is complex. Adjoint methods simplify the task as they take advantage of prior information such as the geometry and material properties. However, they still reveal a number of important limitations. Artifacts observed on the conventional topological energy image result from wave interactions with the boundaries of the inspected medium. The paper describes a method for addressing these artifacts, which involves forward and adjoint fields specified in terms of the boundary conditions...
January 4, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28088402/historical-relationships-of-three-enigmatic-phasianid-genera-aves-galliformes-inferred-using-phylogenomic-and-mitogenomic-data
#16
Ning Wang, Peter A Hosner, Bin Liang, Edward L Braun, Rebecca T Kimball
The phylogeny of the Phasianidae (pheasants, partridges, and allies) has been studied extensively. However, these studies have largely ignored three enigmatic genera because of scarce DNA source material and limited overlapping phylogenetic data: blood pheasants (Ithaginis), snow partridges (Lerwa), and long-billed partridges (Rhizothera). Thus, phylogenetic positions of these three genera remain uncertain in what is otherwise a well-resolved phylogeny. Previous studies using different data types place Lerwa and Ithaginis in similar positions, but the absence of overlapping data means the relationship between them could not be inferred...
January 11, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28087711/ctcf-mediated-topological-boundaries-during-development-foster-appropriate-gene-regulation
#17
Varun Narendra, Milica Bulajić, Job Dekker, Esteban O Mazzoni, Danny Reinberg
The genome is organized into repeating topologically associated domains (TADs), each of which is spatially isolated from its neighbor by poorly understood boundary elements thought to be conserved across cell types. Here, we show that deletion of CTCF (CCCTC-binding factor)-binding sites at TAD and sub-TAD topological boundaries that form within the HoxA and HoxC clusters during differentiation not only disturbs local chromatin domain organization and regulatory interactions but also results in homeotic transformations typical of Hox gene misregulation...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28087167/lingering-questions-about-enhancer-rna-and-enhancer-transcription-coupled-genomic-instability
#18
REVIEW
Gerson Rothschild, Uttiya Basu
Intergenic and intragenic enhancers found inside topologically associated regulatory domains (TADs) express noncoding RNAs, known as enhancer RNAs (eRNAs). Recent studies have indicated these eRNAs play a role in gene regulatory networks by controlling promoter and enhancer interactions and topology of higher-order chromatin structure. Misregulation of enhancer and promoter associated noncoding RNAs (ncRNAs) could stabilize deleterious secondary DNA structures, noncoding RNA associated DNA/RNA hybrid formation, and promote collisions of transcription complexes with replisomes...
January 10, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28086905/reduction-of-eddy-current-losses-in-inductive-transmission-systems-with-ferrite-sheets
#19
Matthias Maaß, Andreas Griessner, Viktor Steixner, Clemens Zierhofer
BACKGROUND: Improvements in eddy current suppression are necessary to meet the demand for increasing miniaturization of inductively driven transmission systems in industrial and biomedical applications. The high magnetic permeability and the simultaneously low electrical conductivity of ferrite materials make them ideal candidates for shielding metallic surfaces. For systems like cochlear implants the transmission of data as well as energy over an inductive link is conducted within a well-defined parameter set...
January 5, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28081343/the-combined-effects-of-proteasome-inhibitor-bortezomib-with-topoisomerase-i-and-ii-inhibitors-on-topoisomerase-enzymes
#20
Emine Öksüzoğlu, Çiydem Tırınoğlu, Barış Kerimoğlu
BACKGROUND/AIM: DNA topoisomerases are ubiquitous enzymes that regulate conformational changes in DNA topology during essential cellular processes, and, for this reason, have been characterized as the cellular targets of a number of anticancer drugs. Bortezomib is a powerful proteasome inhibitor used in the treatment of hematological malignancies. In this study, we investigated the inhibitory effects of bortezomib on human topoisomerase I and II enzymes both alone and in combination modes with camptothecin and etoposide...
December 20, 2016: Turkish Journal of Medical Sciences
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