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https://www.readbyqxmd.com/read/27913360/real-time-decentralized-neural-control-via-backstepping-for-a-robotic-arm-powered-by-industrial-servomotors
#1
Luis A Vazquez, Francisco Jurado, Carlos E Castaneda, Victor Santibanez
This paper presents a continuous-time decentralized neural control scheme for trajectory tracking of a two degrees of freedom direct drive vertical robotic arm. A decentralized recurrent high-order neural network (RHONN) structure is proposed to identify online, in a series-parallel configuration and using the filtered error learning law, the dynamics of the plant. Based on the RHONN subsystems, a local neural controller is derived via backstepping approach. The effectiveness of the decentralized neural controller is validated on a robotic arm platform, of our own design and unknown parameters, which uses industrial servomotors to drive the joints...
December 1, 2016: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/27913070/basagran-%C3%A2-induces-developmental-malformations-and-changes-the-bacterial-community-of-zebrafish-embryos
#2
Jacinta M M Oliveira, Victor Galhano, Isabel Henriques, Amadeu M V M Soares, Susana Loureiro
This study aimed to assess the effects of Basagran(®) on zebrafish (Danio rerio) embryos. The embryos were exposed to Basagran(®) at concentrations ranging from 120.0 to 480.6 mg/L, and the effects on embryo development (up to 96 h) and bacterial communities of 96 h-larvae were assessed. The embryo development response was time-dependent and concentration-dependent (106.35 < EC50 < 421.58 mg/L). The sensitivity of embryo-related endpoints decreased as follows: blood clotting in the head and/or around the yolk sac > delay or anomaly in yolk sac absorption > change in swimming equilibrium > development of pericardial and/or yolk sac oedema > scoliosis...
November 29, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27912912/passive-air-sampling-of-persistent-organic-pollutants-pops-and-emerging-compounds-in-kolkata-megacity-and-rural-mangrove-wetland-sundarban-in-india-an-approach-to-regional-monitoring
#3
Karla Pozo, Santosh Kumar Sarkar, Victor H Estellano, Soumita Mitra, Ondrej Audi, Petr Kukucka, Petra Přibylová, Jana Klánová, Simonetta Corsolini
Polyurethane foam (PUF) disk passive air samplers were deployed concurrently at five sites across Kolkata megacity and the rural mangrove wetland of Sundarban (UNESCO World Heritage Site) between January-March in 2014. Samples were analyzed for hexachlorocyclohexanes (HCHs), dichlorodiphenyltricholoroethanes (DDTs), polychlorinated biphenyls (PCBs) and, polybrominated diphenyl ethers (PBDEs) using gas chromatography and mass spectrometry (GC-MS). Derived air concentrations (pg/m(3)) for Kolkata ranged: for ∑α- and γ-HCH between 70 and 207 (114 ± 62), ∑6DDTs: 127-216 (161 ± 36), ∑7PCBs: 53-213 (141 ± 64), and ∑10PBDEs: 0...
November 29, 2016: Chemosphere
https://www.readbyqxmd.com/read/27912864/clinical-and-epidemiological-aspects-of-scorpionism-in-the-world-a-systematic-review
#4
REVIEW
Maria S V Santos, Cláudio G L Silva, Basílio Silva Neto, Cícero R P Grangeiro Júnior, Victor H G Lopes, Antônio G Teixeira Júnior, Deryk A Bezerra, João V C P Luna, Josué B Cordeiro, Jucier Gonçalves Júnior, Marcos A P Lima
OBJECTIVE: Scorpion stings are registered worldwide, but the incidence and the features of the envenomations vary depending on the region. The aim of this review was to summarize the epidemiological, clinical, diagnostic, and therapeutic data worldwide regarding humans stung by scorpions. METHODS: A systematic review of the literature was conducted through the online databases of the Virtual Health Library (VHL), which hosts Medline and the Latin American and Caribbean Center on Health Sciences Informational (LILACS) database...
December 2016: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/27912217/treatment-of-acute-colonic-diverticular-bleeding-in-high-risk-patients-using-an-over-the-scope-clip-a-case-series
#5
Edris Wedi, Daniel von Renteln, Carlo Jung, Irina Tchoumak, Victor Roth, Susana Gonzales, Joel Leroy, Juergen Hochberger
No abstract text is available yet for this article.
January 2016: Endoscopy
https://www.readbyqxmd.com/read/27912138/human-specific-genomic-signatures-of-neocortical-expansion
#6
REVIEW
Marta Florio, Víctor Borrell, Wieland B Huttner
Neocortex evolutionary expansion is primarily due to increased proliferative capacity of neural progenitor cells during cortical development. Exploiting insights into the cell biology of cortical progenitors gained during the past two decades, recent studies uncovered a variety of gene expression differences that underlie differential cortical progenitor behavior. These comprise both, differences between cortical areas that likely provide a molecular basis for cortical folding, and differences across species thought to be responsible for increases in neocortex size...
November 29, 2016: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/27912061/tumor-interferon-signaling-regulates-a-multigenic-resistance-program-to-immune-checkpoint-blockade
#7
Joseph L Benci, Bihui Xu, Yu Qiu, Tony J Wu, Hannah Dada, Christina Twyman-Saint Victor, Lisa Cucolo, David S M Lee, Kristen E Pauken, Alexander C Huang, Tara C Gangadhar, Ravi K Amaravadi, Lynn M Schuchter, Michael D Feldman, Hemant Ishwaran, Robert H Vonderheide, Amit Maity, E John Wherry, Andy J Minn
Therapeutic blocking of the PD1 pathway results in significant tumor responses, but resistance is common. We demonstrate that prolonged interferon signaling orchestrates PDL1-dependent and PDL1-independent resistance to immune checkpoint blockade (ICB) and to combinations such as radiation plus anti-CTLA4. Persistent type II interferon signaling allows tumors to acquire STAT1-related epigenomic changes and augments expression of interferon-stimulated genes and ligands for multiple T cell inhibitory receptors...
December 1, 2016: Cell
https://www.readbyqxmd.com/read/27911998/tropical-forest-loss-and-its-multitrophic-effects-on-insect-herbivory
#8
José Carlos Morante-Filho, Víctor Arroyo-Rodríguez, Madelon Lohbeck, Teja Tscharntke, Deborah Faria
Forest loss threatens biodiversity, but its potential effects on multitrophic ecological interactions are poorly understood. Insect herbivory depends on complex bottom-up (e.g., resource availability and plant antiherbivore defenses) and top-down forces (e.g., abundance of predators and herbivorous), but its determinants in human-altered tropical landscapes are largely unknown. Using structural equation models, we assessed the direct and indirect effects of forest loss on insect herbivory in 40 landscapes (115 ha each) from two regions with contrasting land-use change trajectories in the Brazilian Atlantic rainforest...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911957/tristetraprolin-down-regulation-contributes-to-persistent-tnf-alpha-expression-induced-by-cigarette-smoke-extract-through-a-post-transcriptional-mechanism
#9
Xue-Ke Zhao, Pulin Che, Ming-Liang Cheng, Quan Zhang, Mao Mu, Hong Li, Yuan Luo, Yue-Dong Liang, Xin-Hua Luo, Chang-Qing Gao, Patricia L Jackson, J Michael Wells, Yong Zhou, Meng Hu, Guoqiang Cai, Victor J Thannickal, Chad Steele, J Edwin Blalock, Xiaosi Han, Ching-Yi Chen, Qiang Ding
RATIONALE: Tumor necrosis factor-alpha (TNF-α) is a potent pro-inflammatory mediator and its expression is up-regulated in chronic obstructive pulmonary disease (COPD). Tristetraprolin (TTP) is implicated in regulation of TNF-α expression; however, whether TTP is involved in cigarette smoke-induced TNF-α expression has not been determined. METHODS: TTP expression was examined by western blot analysis in murine alveolar macrophages and alveolar epithelial cells challenged without or with cigarette smoke extract (CSE)...
2016: PloS One
https://www.readbyqxmd.com/read/27911661/cme-antworten-zu-den-fragen-zu-%C3%A2-bakterielle-meningitis-bei-erwachsenen%C3%A2-aus-praxis-nr-23
#10
Victor Jeger, Barbara Hasse, Florian Hildenbrand
No abstract text is available yet for this article.
November 2016: Praxis
https://www.readbyqxmd.com/read/27911559/topological-pumping-of-photons-in-nonlinear-resonator-arrays
#11
Jirawat Tangpanitanon, Victor M Bastidas, Sarah Al-Assam, Pedram Roushan, Dieter Jaksch, Dimitris G Angelakis
We show how to implement topological or Thouless pumping of interacting photons in one-dimensional nonlinear resonator arrays by simply modulating the frequency of the resonators periodically in space and time. The interplay between the interactions and the adiabatic modulations enables robust transport of Fock states with few photons per site. We analyze the transport mechanism via an effective analytic model and study its topological properties and its protection to noise. We conclude by a detailed study of an implementation with existing circuit-QED architectures...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911370/integrated-compensatory-responses-in-a-human-model-of-hemorrhage
#12
Victor A Convertino, Carmen Hinojosa-Laborde, Gary W Muniz, Robert Carter
Hemorrhage is the leading cause of trauma-related deaths, partly because early diagnosis of the severity of blood loss is difficult. Assessment of hemorrhaging patients is difficult because current clinical tools provide measures of vital signs that remain stable during the early stages of bleeding due to compensatory mechanisms. Consequently, there is a need to understand and measure the total integration of mechanisms that compensate for reduced circulating blood volume and how they change during ongoing progressive hemorrhage...
November 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910979/efficient-synthesis-of-cysteine-rich-cyclic-peptides-through-intramolecular-native-chemical-ligation-of-n-hnb-cys-peptide-crypto-thioesters
#13
Victor P Terrier, Agnès F Delmas, Vincent Aucagne
We herein introduce a straightforward synthetic route to cysteine-containing cyclic peptides based on the intramolecular native chemical ligation of in situ generated thioesters. Key precursors are N-Hnb-Cys crypto-thioesters, easily synthesized by Fmoc-based SPPS. The strategy is applied to a representative range of naturally occurring cyclic disulfide-rich peptide sequences.
December 2, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27910715/how-do-we-measure-adherence-to-anti-tuberculosis-treatment
#14
Salomé Valencia, Montserrat León, Irene Losada, Victor G Sequera, Manuel Fernandez Quevedo, Alberto L García-Basteiro
Completion of anti-tuberculosis (TB) treatment is of paramount importance for TB patients, as well as for the global efforts of TB control. However, there is neither a gold-standard measure to monitor adherence to TB treatment nor a widely used definition for different levels of adherence. Areas covered: in this review we aim to describe the different methods used to measure patients' adherence to anti-TB treatment, identifying their main strengths and limitations, with a focus on low resource settings. Expert commentary: there is a need for continuing the quest for a low cost, reliable and acceptable measure of adherence to TB treatment...
December 2, 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27910343/asymmetries-in-the-motional-stark-effect-emission-on-the-diii-d-tokamak
#15
B S Victor, C T Holcomb, S L Allen, W H Meyer, M A Makowski, A Thorman
Spectrometer measurements and filter upgrades to a motional Stark effect polarimeter measuring the outer half-radius of the DIII-D tokamak helped to identify asymmetries in the polarization angle of Stark-split emission. The measured polarization angle of the π components differs and is not orthogonal to the σ component. These differences persist over a range of densities and with low levels of background light. It is suggested that the difference in the polarization angle between components is from a change in the ellipticity of the emitted light across the Stark components coupled with imperfect polarization preservation from an in-vessel mirror...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910076/-2016-esc-position-paper-on-cancer-treatments-and-cardiovascular-toxicity-developed-under-the-auspices-of-the-esc-committee-for-practice-guidelines
#16
Jose Luis Zamorano, Patrizio Lancellotti, Daniel Rodriguez Muñoz, Victor Aboyans, Riccardo Asteggiano, Maurizio Galderisi, Gilbert Habib, Daniel J Lenihan, Gregory Y H Lip, Alexander R Lyon, Teresa Lopez Fernandez, Dania Mohty, Massimo F Piepoli, Juan Tamargo, Adam Torbicki, Thomas M Suter
No abstract text is available yet for this article.
2016: Kardiologia Polska
https://www.readbyqxmd.com/read/27910072/enhancing-surface-plasmon-resonance-detection-using-nanostructured-au-chips
#17
Ivan Indutnyi, Yuriy Ushenin, Dirk Hegemann, Marianne Vandenbossche, Victor Myn'ko, Mariia Lukaniuk, Petro Shepeliavyi, Andrii Korchovyi, Roman Khrystosenko
The increase of the sensitivity of surface plasmon resonance (SPR) refractometers was studied experimentally by forming a periodic relief in the form of a grating with submicron period on the surface of the Au-coated chip. Periodic reliefs of different depths and spatial frequency were formed on the Au film surface using interference lithography and vacuum chalcogenide photoresists. Spatial frequencies of the grating were selected close to the conditions of Bragg reflection of plasmons for the working wavelength of the SPR refractometer and the used environment (solution of glycerol in water)...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27909826/profile-and-determinants-of-disability-in-psychotic-disorders-in-nigeria
#18
Victor Olufolahan Lasebikan, Olatunde Ayinde
We compared profile and predictors of disability among 210 patients with schizophrenia, schizoaffective disorder, bipolar I disorder with psychosis and depression with psychosis, respectively in a Nigerian clinical population, using the WHO Disability Assessment Schedule, (2.0). Severity of psychosis was determined with Positive and Negative Symptoms Scale, functioning was assessed using the Global Assessment of Functioning Scale, medication adherence with the Medication Adherence Questionnaire. Analyses were by SPSS 20...
December 1, 2016: Community Mental Health Journal
https://www.readbyqxmd.com/read/27909808/clinical-validation-of-a-novel-urine-based-metabolomic-test-for-the-detection-of-colonic-polyps-on-chinese-population
#19
Lu Deng, Hong Fang, Victor K Tso, Yuanyuan Sun, Rae R Foshaug, Spencer C Krahn, Fen Zhang, Yujie Yan, Huilin Xu, David Chang, Yong Zhang, Richard N Fedorak
PURPOSE: Colorectal cancer is the fifth leading cause of cancer-related deaths in China. When detected early, with the removal of adenomatous polyps, precursors of colorectal cancer, it is preventable. The aim of this study was to evaluate a novel urine-based metabolomic diagnostic test for the detection of adenomatous polyps, PolypDx™, that was originally developed and validated using 1000 samples from Canadian Cohort, on Chinese population. METHODS: Prospective urine samples were collected from 1000 participants undergoing colonoscopy examination, from March 2013 to July 2014 at Minhang District, Shanghai Centre for Disease Control and Prevention...
December 1, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27909191/analgesia-in-clinically-relevant-rodent-models-of-sepsis
#20
Victor Jeger, Till Hauffe, Flora Nicholls-Vuille, Dominique Bettex, Alain Rudiger
Postoperative analgesia in rodent sepsis models has been considerably neglected in the past. However, intentions to model clinical practice, increasing awareness of animal ethics, efforts to apply the 3Rs (replacement, reduction, refinement), and stricter legislation argue for a change in this respect. In this review, we describe different concepts of analgesia in rodent models of sepsis focusing on opioid agonists as well as non-opioid analgesics. Advantages and pitfalls in study design and side-effects are discussed...
December 2016: Laboratory Animals
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