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Gisele Farias, Rubia D Thieme, Laila M Teixeira, Maria Emilia V D Heyde, Solange C Bettini, Rosana B Radominski
BACKGROUND: Bariatric surgery is one of the main treatments for severity obesity, but weight regain after surgery is an important issue. OBJECTIVES: To compare the clinical and nutritional profiles of good and poor weight loss responders in the late postoperative period after bariatric surgery. METHODS: A cross-sectional study with patients undergoing Roux-en-Y gastric bypass in a University Hospital. Patients were divided into good weight loss responders (GWLR) and poor weight loss responders (PWLR) defined as ≥ 50% or < 50% excess weight loss (EWL), respectively, at least 2 years post-surgery...
September 20, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Alejandra Ortega, Jean Provost, Ling Tong, Pedro Santos, Brecht Heyde, Mathieu Pernot, Jan D'hooge
It was previously demonstrated in 2D echocardiography that a proper multi-line transmit (MLT) implementation can be used to increase frame rate while preserving image quality. Initial findings for extending MLT to 3D showed that it might address the low spatiotemporal resolution of current volumetric ultrasound systems. However, to date, it remains unclear how much transmit/receive parallelization would be possible using a 3D MLT system. Therefore, the aim of this study was to contrast different MLT setups for 3D imaging by computer simulation in order to determine an optimal trade-off between the amount of parallelization of a MLT system and the corresponding signal-to-noise ratio of the resulting images...
September 29, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
K C Heyde, P W Gallagher, W C Ruder
Biomimetic robots have been used to explore and explain natural phenomena ranging from the coordination of ants to the locomotion of lizards. Here, we developed a series of decision architectures inspired by the information exchange between a host organism and its microbiome. We first modeled the biochemical exchanges of a population of synthetically engineered E. coli. We then built a physical, differential drive robot that contained an integrated, onboard computer vision system. A relay was established between the simulated population of cells and the robot's microcontroller...
2016: Bioinspiration & Biomimetics
C Josten, C-E Heyde, U J Spiegl
Treating vertebral body fractures is challenging when there is relevant pre-existing spinal degeneration. Both vertebral body fractures and spinal degeneration are related to the physiological aging process. The increases in both are linked to increases in life expectancy. Several factors promote spinal degeneration and increase fracture risk, such as disc degeneration, spinal imbalance and osteoporosis. The main diagnostic and therapeutic challenge is to identify the sources of pain and to start appropriate therapy...
October 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
Joanne Cleland, James M Scobbie, Cornelia Heyde, Zoe Roxburgh, Alan A Wrench
Acoustic and articulatory studies demonstrate covert contrast in perceptually neutralised phonemic contrasts in both typical children and children with speech disorders. These covert contrasts are thought to be relatively common and symptomatic of phonetic speech disorders. However, clinicians in the speech therapy clinic have had no easy way of identifying this covertness. This study uses ultrasound tongue imaging to compare tongue contours for /t/and /k/in seven children with persistent velar fronting. We present a method of overlaying tongue contours to identify covert contrast at the articulatory level...
September 9, 2016: Clinical Linguistics & Phonetics
D J Huang, L Q Kong, Z Wu
No abstract text is available yet for this article.
September 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
S Bouchez, B Heyde, D Barbosa, M Vandenheuvel, H Houle, Y Wang, J D'hooge, P F Wouters
Three-dimensional (3D) strain analysis based on real-time 3-D echocardiography (RT3DE) has emerged as a novel technique to quantify regional myocardial function. The goal of this study was to evaluate accuracy of a novel model-based 3D tracking tool (eSie Volume Mechanics, Siemens Ultrasound, Mountain View, CA, USA) using sonomicrometry as an independent measure of cardiac deformation. Thirteen sheep were instrumented with microcrystals sutured to the epi- and endocardium of the inferolateral left ventricular wall to trace myocardial deformation along its three directional axes of motion...
August 17, 2016: International Journal of Cardiovascular Imaging
Yu Meng, Xing-Wu Liu, Chun-Fang Huo, Wen-Ping Guo, Dong-Bo Cao, Qing Peng, Albert Dearden, Xavier Gonze, Yong Yang, Jianguo Wang, Haijun Jiao, Yongwang Li, Xiao-Dong Wen
Three density functional approximations (DFAs), PBE, PBE+U, and Heyd-Scuseria-Ernzerhof screened hybrid functional (HSE), were employed to investigate the geometric, electronic, magnetic, and thermodynamic properties of four iron oxides, namely, α-FeOOH, α-Fe2O3, Fe3O4, and FeO. Comparing our calculated results with available experimental data, we found that HSE (a = 0.15) (containing 15% "screened" Hartree-Fock exchange) can provide reliable values of lattice constants, Fe magnetic moments, band gaps, and formation energies of all four iron oxides, while standard HSE (a = 0...
October 11, 2016: Journal of Chemical Theory and Computation
Peter Melcher, Dirk Zajonz, Andreas Roth, Christoph-E Heyde, Mohamed Ghanem
BACKGROUND: The OSCE (objective structured clinical examination) is composed of oral and practical examination in order to examine students' abilities to imply clinical examination techniques and to interact with patients. The examiners for this procedure can be either lecturers or peers. The aim of this work is to evaluate the peer-assisted teaching student tutors as examiners in an orthopedic surgery OSCE station. METHODS: We analyzed the OSCE data from 2013 to 2015...
2016: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
Ilka Wilhelmi, Regina Kanski, Alexander Neumann, Olga Herdt, Florian Hoff, Ralf Jacob, Marco Preußner, Florian Heyd
The transport of secretory proteins from the endoplasmic reticulum (ER) to the Golgi depends on COPII-coated vesicles. While the basic principles of the COPII machinery have been identified, it remains largely unknown how COPII transport is regulated to accommodate tissue- or activation-specific differences in cargo load and identity. Here we show that activation-induced alternative splicing of Sec16 controls adaptation of COPII transport to increased secretory cargo upon T-cell activation. Using splice-site blocking morpholinos and CRISPR/Cas9-mediated genome engineering, we show that the number of ER exit sites, COPII dynamics and transport efficiency depend on Sec16 alternative splicing...
2016: Nature Communications
Bárbara Dal Molin Netto, Carrie P Earthman, Gisele Farias, Deborah Cristina Landi Masquio, Ana Paula Grotti Clemente, Priscilla Peixoto, Solange Cravo Bettini, Maria Emilia von Der Heyde, Ana R Dâmaso
OBJECTIVE: Significant changes in the preference for different dietary components have been observed after Roux-en-Y gastric bypass (RYGB). The aim of this study was to evaluate the early post-RYGB changes in quality of eating patterns and their relationship to weight loss and metabolic parameters. METHODS: The sample was composed of 41 extremely obese individuals undergoing RYGB. Dietary data were collected using a validated food frequency questionnaire in Brazil...
June 3, 2016: Nutrition
V Kepenekian, D Elias, G Passot, E Mery, D Goere, D Delroeux, F Quenet, G Ferron, D Pezet, J M Guilloit, P Meeus, M Pocard, J M Bereder, K Abboud, C Arvieux, C Brigand, F Marchal, J M Classe, G Lorimier, C De Chaisemartin, F Guyon, P Mariani, P Ortega-Deballon, S Isaac, C Maurice, F N Gilly, O Glehen
PURPOSE: Diffuse malignant peritoneal mesothelioma (DMPM) is a severe disease with mainly locoregional evolution. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) is the reported treatment with the longest survival. The aim of this study was to evaluate the impact of perioperative systemic chemotherapy strategies on survival and postoperative outcomes in patients with DMPM treated with curative intent with CRS-HIPEC, using a multi-institutional database: the French RENAPE network...
September 2016: European Journal of Cancer
Joseph L Blackshear, Chad W McRee, Robert E Safford, Peter M Pollak, Mark E Stark, Colleen S Thomas, Candido E Rivera, Ewa M Wysokinska, Dong Chen
IMPORTANCE: Limited data suggest that von Willebrand factor (VWF) abnormalities may accompany the high-shear state associated with prosthetic valve dysfunction. If true, laboratory testing could add value in quantifying prosthesis dysfunction and could suggest a pathophysiological explanation for acquired bleeding in some patients. OBJECTIVES: To determine whether dysfunctional valve prostheses are associated with VWF abnormalities compared with normally functioning valve prostheses, to identify the severity of the VWF abnormality relative to other conditions, and to describe associated bleeding and the occurrence of gastrointestinal angiodysplasia...
May 1, 2016: JAMA Cardiology
Christin Büchner, Zhu-Jun Wang, Kristen M Burson, Marc-Georg Willinger, Markus Heyde, Robert Schlögl, Hans-Joachim Freund
An atomically smooth silica bilayer is transferred from the growth substrate to a new support via mechanical exfoliation at millimeter scale. The atomic structure and morphology are maintained perfectly throughout the process. A simple heating treatment results in complete removal of the transfer medium. Low-energy electron diffraction, Auger electron spectroscopy, scanning tunneling microscopy, and environmental scanning electron microscopy show the success of the transfer steps. Excellent chemical and thermal stability result from the absence of dangling bonds in the film structure...
August 23, 2016: ACS Nano
Biao Liu, Li-Juan Wu, Yu-Qing Zhao, Lin-Zhi Wang, Meng-Qiu Caii
The structures and electronic properties of the phosphorene and graphene heterostructure are investigated by density functional calculations using the hybrid Heyd-Scuseria-Ernzerhof (HSE) functional. The results show that the intrinsic properties of phosphorene and graphene are preserved due to the weak van der Waals contact. But the electronic properties of the Schottky contacts in the phosphorene and graphene heterostructure can be tuned from p-type to n-type by the in-plane compressive strains from -2% to -4%...
July 20, 2016: Physical Chemistry Chemical Physics: PCCP
Brahmananda Chakraborty, Lavanya M Ramaniah
Transition metal-free-ferromagnetism in diluted magnetic semiconductors (DMS) is of much current interest in view of the search for more efficient DMS materials for spintronics applications. Our DFT results predict for the first time, that impurities from group1A (Li(+), Na(+), K(+)) doped on Y2O3 can induce a magnetic signature with a magnetic moment around 2.0 μ B per defect at hole concentrations around 1.63  ×  10(21) cm(-3), which is one order less than the critical hole density of ZnO with ferromagnetic coupling large enough to promote room temperature ferromagnetism...
August 24, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
G Bernhardt, F Awiszus, U Meister, C E Heyde, H Böhm
INTRODUCTION: Transpedicular screw fixation of spinal segments has been described for a variety of surgical indications and is a key element in spinal surgery. The aim of transpedicular screw fixation is to achieve maximal stability. Screw malposition should be obviated to avoid neurological complications. There are published methods of applying evoked EMG to control screw position in relation to neural structures. These studies demonstrated that an intact bony pedicle wall acts as an electrical isolator between the screw and spinal nerve root...
June 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
E Heyde, M Dhar, H Hellemans, E Schoentjes, D Van West
BACKGROUND: Very little information is available concerning the prevalence of the use of medication for treatment of individuals with autism spectrum disorder (ASD), particularly in European countries. Earlier studies have shown that a large number of patients with ASD use at least one psychoactive drug and that the numbers are increasing. Even in the nineties, studies suggested that the frequent use of psychoactive medication was widespread, although at the time there were only limited grounds for this assumption...
2016: Tijdschrift Voor Psychiatrie
Ezequiel Miron, Cassandravictoria Innocent, Sophia Heyde, Lothar Schermelleh
Recent advances in super-resolution microscopy enable the study of subchromosomal chromatin organization in single cells with unprecedented detail. Here we describe refined methods for pulse-chase replication labeling of individual chromosome territories (CTs) and replication domain units in mammalian cell nuclei, with specific focus on their application to three-dimensional structured illumination microscopy (3D-SIM). We provide detailed protocols for highly efficient electroporation-based delivery or scratch loading of cell impermeable fluorescent nucleotides for live cell studies...
2016: Methods in Molecular Biology
E Schumann, D Zajonz, M Wojan, F B Kübler, P Brandmaier, C Josten, C-E Heyde, U Bühligen
BACKGROUND: Slipped capital femoral epiphysis (SCFE) is a multifactorial structural loosening in the area through the epiphyseal plate between the epiphysis and metaphysis accompanied by slippage of the femoral head in the mid-dorsal-caudal direction without additional adequate trauma. In this retrospective study, all patients with chronic SCFE were assessed who had been treated by implanting a dynamic epiphyseal telescopic (DET) screw. METHODOLOGY: All patients who had been treated at our hospital with a DET screw implant between December 2006 and November 2014 following diagnosis of chronic SCFE were included in the study...
July 2016: Der Orthopäde
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