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https://www.readbyqxmd.com/read/28208633/compact-planar-ultrawideband-antennas-with-3-5-5-2-5-8-ghz-triple-band-notched-characteristics-for-internet-of-things-applications
#1
Jian Dong, Qianqian Li, Lianwen Deng
Ultrawideband (UWB) antennas, as core devices in high-speed wireless communication, are widely applied to mobile handsets, wireless sensor networks, and Internet of Things (IoT). A compact printed monopole antenna for UWB applications with triple band-notched characteristics is proposed in this paper. The antenna has a very compact size of 10 x 16 mm2 and is composed of a square slotted radiation patch and a narrow rectangular ground plane on the back of the substrate. First, by etching a pair of inverted T-shaped slots at the bottom of the radiation patch, one notched band at 5-6 GHz for rejecting the Wireless Local Area Network (WLAN) is generated...
February 10, 2017: Sensors
https://www.readbyqxmd.com/read/28199759/bioinspired-design-of-a-robust-elastomer-with-adaptive-recovery-via-triazolinedione-click-chemistry
#2
Jing Huang, Lijie Zhang, Zhenghai Tang, Siwu Wu, Nanying Ning, Haibin Sun, Baochun Guo
It is a significant but challenging task to simultaneously reinforce and functionalize diene rubbers. Inspired by "sacrificial bonds", the authors engineer sacrificial hydrogen bonds formed by pendent urazole groups in crosslinked solution-polymerized styrene butadiene rubber (SSBR) via triazolinedione click chemistry. This post-crosslinking modification reveals the effects of the sacrificial bonds based on a consistent covalent network. The "cage effect" of the pre-crosslinked network facilitates the heterogeneous distribution of urazole groups, leading to the formation of hydrogen-bonded multiplets...
February 15, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28199083/shape-memory-hydrogels-evolution-of-structural-principles-to-enable-shape-switching-of-hydrophilic-polymer-networks
#3
Candy Löwenberg, Maria Balk, Christian Wischke, Marc Behl, Andreas Lendlein
The ability of hydrophilic chain segments in polymer networks to strongly interact with water allows the volumetric expansion of the material and formation of a hydrogel. When polymer chain segments undergo reversible hydration depending on environmental conditions, smart hydrogels can be realized, which are able to shrink/swell and thus alter their volume on demand. In contrast, implementing the capacity of hydrogels to switch their shape rather than volume demands more sophisticated chemical approaches and structural concepts...
February 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28198388/molecular-weaving-via-surface-templated-epitaxy-of-crystalline-coordination-networks
#4
Zhengbang Wang, Alfred Błaszczyk, Olaf Fuhr, Stefan Heissler, Christof Wöll, Marcel Mayor
One of the dream reactions in polymer chemistry is the bottom-up, self-assembled synthesis of polymer fabrics, with interwoven, one-dimensional fibres of monomolecular thickness forming planar pieces of textiles. We have made a major step towards realizing this goal by assembling sophisticated, quadritopic linkers into surface-mounted metal-organic frameworks. By sandwiching these quadritopic linkers between sacrificial metal-organic framework thin films, we obtained multi-heteroepitaxial, crystalline systems...
February 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28193257/bell-s-palsy-in-children-bellpic-protocol-for-a-multicentre-placebo-controlled-randomized-trial
#5
Franz E Babl, Mark T Mackay, Meredith L Borland, David W Herd, Amit Kochar, Jason Hort, Arjun Rao, John A Cheek, Jeremy Furyk, Lisa Barrow, Shane George, Michael Zhang, Kaya Gardiner, Katherine J Lee, Andrew Davidson, Robert Berkowitz, Frank Sullivan, Emily Porrello, Kim Marie Dalziel, Vicki Anderson, Ed Oakley, Sandy Hopper, Fiona Williams, Catherine Wilson, Amanda Williams, Stuart R Dalziel
BACKGROUND: Bell's palsy or acute idiopathic lower motor neurone facial paralysis is characterized by sudden onset paralysis or weakness of the muscles to one side of the face controlled by the facial nerve. While there is high level evidence in adults demonstrating an improvement in the rate of complete recovery of facial nerve function when treated with steroids compared with placebo, similar high level studies on the use of steroids in Bell's palsy in children are not available. The aim of this study is to assess the utility of steroids in Bell's palsy in children in a randomised placebo-controlled trial...
February 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28187500/basement-membrane-type-iv-collagen-and-laminin-an-overview-of-their-biology-and-value-as-fibrosis-biomarkers-of-liver-disease
#6
REVIEW
Ki M Mak, Rena Mei
Basement membranes provide structural support to epithelium, endothelium, muscles, fat cells, Schwann cells and axons. Basement membranes are multifunctional: they modulate cellular behavior, regulate organogenesis, promote tissue repair, form a barrier to filtration and tumor metastasis, bind growth factors and mediate angiogenesis. All basement membranes contain type IV collagen (Col IV), laminin, nidogen, and perlecan. Col IV and laminin self-assemble into two independent supramolecular networks that are linked to nidogen and perlecan to form a morphological discernable basement membrane/basal lamina...
February 10, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28187255/redox-route-from-inorganic-precursor-li2c2-to-nanopatterned-carbon
#7
Paul Simon, Xian-Juan Feng, Matej Bobnar, Peter Höhn, Ulrich Schwarz, Wilder Carrillo-Cabrera, Michael Baitinger, Yuri Grin
We present the synthesis route to carbon with hierarchical morphology on the nanoscale. The structures are generated using crystalline orthorhombic lithium carbide (Li2C2) as precursor with nanolamellar organization. Careful treatment by SnI4 oxidizes carbon at the fairly low temperature of 80 °C to the elemental state and keeps intact the initial crystallite shape, the internal lamellar texture of particles, and the lamellae stacking. The reaction product is amorphous but displays in the microstructure parallel band-like arrangements with diameters in the range of 200-500 nm...
February 15, 2017: ACS Nano
https://www.readbyqxmd.com/read/28166948/heat-transfer-analysis-of-skin-during-thermal-therapy-using-thermal-wave-equation
#8
Meisam Kashcooli, Mohammad Reza Salimpour, Ebrahim Shirani
Specifying exact geometry of vessel network and its effect on temperature distribution in living tissues is one of the most complicated problems of the bioheat field. In this paper, the effects of blood vessels on temperature distribution in a skin tissue subjected to various thermal therapy conditions are investigated. Present model consists of counter-current multilevel vessel network embedded in a three-dimensional triple-layered skin structure. Branching angles of vessels are calculated using the physiological principle of minimum work...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28152807/outcomes-by-schedule-and-line-of-therapy-in-patients-pts-with-metastatic-breast-cancer-mbc-treated-with-nab-paclitaxel-nab-p-a-u-s-retrospective-community-based-real-world-cohort-analysis
#9
Sotirios G Stergiopoulos, Rick Hippert, Robyn K Harrell, Janet L Espirito, Peg Squier, Amy Ko
: 86 Background: In a phase III study in MBC, nab-P showed activity across lines of therapy. nab-P is approved for MBC at 260 mg/m(2) every 3 weeks (q3w). This analysis evaluated outcomes with use of nab-P in MBC by schedule and line of therapy in a U.S. community setting. METHODS: A multicenter, retrospective cohort analysis was conducted using iKnowMed electronic health record data and electronic medical chart review of women with ≥ 5 visits to a site in the US Oncology Network...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152392/global-exponential-stability-and-dissipativity-of-generalized-neural-networks-with-time-varying-delay-signals
#10
R Manivannan, R Samidurai, Jinde Cao, Ahmed Alsaedi, Fuad E Alsaadi
This paper investigates the problems of exponential stability and dissipativity of generalized neural networks (GNNs) with time-varying delay signals. By constructing a novel Lyapunov-Krasovskii functionals (LKFs) with triple integral terms that contain more advantages of the state vectors of the neural networks, and the upper bound on the time-varying delay signals are formulated. We employ a new integral inequality technique (IIT), free-matrix-based (FMB) integral inequality approach, and Wirtinger double integral inequality (WDII) technique together with the reciprocally convex combination (RCC) approach to bound the time derivative of the LKFs...
December 23, 2016: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28130619/is-routine-axillary-imaging-necessary-in-clinically-node-negative-patients-undergoing-neoadjuvant-chemotherapy
#11
Andrea V Barrio, Anita Mamtani, Anne Eaton, Sandra Brennan, Michelle Stempel, Monica Morrow
BACKGROUND: The National Comprehensive Cancer Network guidelines recommend axillary imaging prior to neoadjuvant chemotherapy (NAC) in breast cancer patients who are clinically node negative (cN0) by physical examination. However, the benefit of this approach remains uncertain. The purpose of this study was to determine whether abnormal axillary imaging pre-NAC predicts nodal metastases post-NAC (ypN+) in cN0 patients. METHODS: cN0 patients undergoing NAC followed by axillary surgery were identified...
March 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28126489/the-protein-serine-threonine-phosphatases-pp2a-pp1-and-calcineurin-a-triple-threat-in-the-regulation-of-the-neuronal-cytoskeleton
#12
REVIEW
Alexander Hoffman, Goce Taleski, Estelle Sontag
The microtubule, F-actin and neurofilament networks play a critical role in neuronal cell morphogenesis, polarity and synaptic plasticity. Significantly, the assembly/disassembly and stability of these cytoskeletal networks is crucially modulated by protein phosphorylation and dephosphorylation events. Herein, we aim to more closely examine the role played by three major neuronal Ser/Thr protein phosphatases, PP2A, PP1 and calcineurin, in the homeostasis of the neuronal cytoskeleton. There is strong evidence that these enzymes interact with and dephosphorylate a variety of cytoskeletal proteins, resulting in major regulation of neuronal cytoskeletal dynamics...
January 23, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28123782/systematic-review-and-network-meta-analysis-of-the-efficacy-and-safety-of-tumour-necrosis-factor-inhibitor-methotrexate-combination-therapy-versus-triple-therapy-in-rheumatoid-arthritis
#13
Roy Fleischmann, Vanita Tongbram, Ronald van Vollenhoven, Derek H Tang, James Chung, David Collier, Shilpa Urs, Kerigo Ndirangu, George Wells, Janet Pope
OBJECTIVE: Clinical trials have not consistently demonstrated differences between tumour necrosis factor inhibitor (TNFi) plus methotrexate and triple therapy (methotrexate plus hydroxychloroquine plus sulfasalazine) in rheumatoid arthritis (RA). The study objective was to estimate the efficacy, radiographic benefits, safety and patient-reported outcomes of TNFi-methotrexate versus triple therapy in patients with RA. METHODS: A systematic review and network meta-analysis (NMA) of randomised controlled trials of TNFi-methotrexate or triple therapy as one of the treatment arms in patients with an inadequate response to or who were naive to methotrexate was conducted...
2017: RMD Open
https://www.readbyqxmd.com/read/28117515/multimodal-investigation-of-triple-network-connectivity-in-patients-with-22q11ds-and-association-with-executive-functions
#14
Maria C Padula, Marie Schaer, Elisa Scariati, Johanna Maeder, Maude Schneider, Stephan Eliez
Large-scale brain networks play a prominent role in cognitive abilities and their activity is impaired in psychiatric disorders, such as schizophrenia. Patients with 22q11.2 deletion syndrome (22q11DS) are at high risk of developing schizophrenia and present similar cognitive impairments, including executive functions deficits. Thus, 22q11DS represents a model for the study of neural biomarkers associated with schizophrenia. In this study, we investigated structural and functional connectivity within and between the Default Mode (DMN), the Central Executive (CEN), and the Saliency network (SN) in 22q11DS using resting-state fMRI and DTI...
January 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28115484/target-cell-type-dependent-differences-in-ca2-channel-function-underlie-distinct-release-probabilities-at-hippocampal-glutamatergic-terminals
#15
Tímea Éltes, Tekla Kirizs, Zoltan Nusser, Noemi Holderith
: Target cell type-dependent differences in presynaptic release probability (Pr) and short-term plasticity are intriguing features of cortical microcircuits that increase the computational power of neuronal networks. Here we tested the hypothesis that different voltage-gated Ca(2+) channel densities in presynaptic active zones (AZs) underlie different Pr Two-photon Ca(2+) imaging, triple immunofluorescent labeling and three-dimensional electron microscopic (EM) reconstruction of rat CA3 pyramidal cell axon terminals revealed approximately 1...
January 23, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28112207/placebo-intervention-enhances-reward-learning-in-healthy-individuals
#16
Zsolt Turi, Matthias Mittner, Walter Paulus, Andrea Antal
According to the placebo-reward hypothesis, placebo is a reward-anticipation process that increases midbrain dopamine (DA) levels. Reward-based learning processes, such as reinforcement learning, involves a large part of the DA-ergic network that is also activated by the placebo intervention. Given the neurochemical overlap between placebo and reward learning, we investigated whether verbal instructions in conjunction with a placebo intervention are capable of enhancing reward learning in healthy individuals by using a monetary reward-based reinforcement-learning task...
January 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106823/integrated-microrna-mrna-profiling-identifies-oncostatin-m-as-a-marker-of-mesenchymal-like-er-negative-her2-negative-breast-cancer
#17
Giulia Bottai, Lixia Diao, Keith A Baggerly, Laura Paladini, Balázs Győrffy, Carlotta Raschioni, Lajos Pusztai, George A Calin, Libero Santarpia
MicroRNAs (miRNAs) simultaneously modulate different oncogenic networks, establishing a dynamic system of gene expression and pathway regulation. In this study, we analyzed global miRNA and messenger RNA (mRNA) expression profiles of 17 cell lines representing different molecular breast cancer subtypes. Spearman's rank correlation test was used to evaluate the correlation between miRNA and mRNA expression. Hierarchical clustering and pathway analysis were also performed. Publicly available gene expression profiles (n = 699) and tumor tissues (n = 80) were analyzed to assess the relevance of key miRNA-regulated pathways in human breast cancer...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28101870/fibrillar-collagens
#18
Jordi Bella, David J S Hulmes
Fibrillar collagens (types I, II, III, V, XI, XXIV and XXVII) constitute a sub-group within the collagen family (of which there are 28 types in humans) whose functions are to provide three-dimensional frameworks for tissues and organs. These networks confer mechanical strength as well as signalling and organizing functions through binding to cellular receptors and other components of the extracellular matrix (ECM). Here we describe the structure and assembly of fibrillar collagens, and their procollagen precursors, from the molecular to the tissue level...
2017: Sub-cellular Biochemistry
https://www.readbyqxmd.com/read/28088140/ring-polymer-molecular-dynamics-studies-on-the-rate-coefficient-of-the-abstraction-channel-of-hydrogen-plus-ethane-propane-and-dimethyl-ether
#19
Qingyong Meng, Jun Chen
To accurately compute the rates of the abstraction channels of hydrogen plus ethane (Et), propane (Pr), and dimethyl ether (DME), ring-polymer molecular dynamics (RPMD) method is used in conjunction with the recently constructed local permutation invariant polynomial neural-networks potential energy surface of the parent H + CH4 system [Q. Meng et al., J. Chem. Phys. 144, 154312 (2016)]. For H + Et, one of the H atoms in CH4 of the parent system is replaced by a methyl group, while for the H + DME reaction, it is replaced by the methoxyl group...
January 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28076436/correction-a-network-based-data-integration-approach-to-support-drug-repurposing-and-multi-target-therapies-in-triple-negative-breast-cancer
#20
Francesca Vitali, Laurie D Cohen, Andrea Demartini, Angela Amato, Vincenzo Eterno, Alberto Zambelli, Riccardo Bellazzi
[This corrects the article DOI: 10.1371/journal.pone.0162407.].
2017: PloS One
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