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RF pattern

Flavia Del Porto, Noemi Cifani, Maria Proietta, Danilo Toni, Maurizio Taurino
OBJECTIVE: The aim of this study was to evaluate the levels of matrix metalloproteinase-12 (MMP-12) and tissue inhibitors of metalloproteinases (TIMP)-1, TIMP-2, TIMP-3, and TIMP-4 in patients with symptomatic and asymptomatic critical carotid artery stenosis (CAS). METHODS: We enrolled 10 patients affected by symptomatic CAS within 12 hours from onset of stroke (S group) and 30 patients with asymptomatic CAS (CAS group); 31 patients matched for age, sex, and traditional cardiovascular risk factors were used as controls (RF group)...
October 13, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Elizabeth Claydon, Stephanie Zerwas, Laura Callinan, Megan V Smith
OBJECTIVE: Reflective Functioning is a vital aspect of parental aptitude and its absence, especially in the presence of psychopathology, can impair attachment. This study sought to clarify the relationship of parental RF among mothers with eating disorder symptomatology. METHOD: We assessed 59 mothers for ED symptomatology using the Eating Disorder Examination Questionnaire (EDE-Q) and RF through the Parental Reflective Functioning Questionnaire (PRFQ). Bivariate and multivariate analyses compared PRFQ subscales between symptomatic and asymptomatic mothers, using a clinical cutoff score of 4 on the EDE-Q subscales...
September 14, 2016: Eating Behaviors
Chad G Ball, Andre Campbell, Sean C Grondin, Elijah Dixon
INTRODUCTION: Ongoing hemorrhage is often life threatening and can be challenging to stop in critically injured patients. Traditional techniques for addressing this issue include high voltage cautery (Bovie), topical hemostatic application, and the delivery of ignited argon gas. The goal of this study was to evaluate the efficacy of a novel energy device for arresting ongoing bleeding from both solid and non-solid organs within a swine model. METHODS: A novel instrument utilizing bipolar radiofrequency (RF) energy which acts to ignite/boil dripping saline from a small hand piece was employed to arrest ongoing hemorrhage from an escalating series of injuries in large male swine...
September 30, 2016: Injury
David M McCord, Margaret C Achee, Elissa M Cannon, Tiffany M Harrop, William D Poynter
The National Institute of Mental Health has proposed a paradigm shift in the conceptualization of psychopathology, abandoning the traditional categorical model in favor of one based on hierarchically organized dimensional constructs (Insel et al., 2010 ). One explicit goal of this initiative, the Research Domain Criteria (RDoC) project, is to facilitate the incorporation of newly available neurobiologic variables into research on psychopathology. The Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Ben-Porath & Tellegen, 2008/2011 ) represents a similar paradigm shift, also adopting a hierarchical arrangement of dimensional constructs...
October 7, 2016: Journal of Personality Assessment
Marc Napoleone, Ania Z Kielar, Rebecca Hibbert, Sameh Saif, Benjamin Y M Kwan
PURPOSE: We aimed to evaluate patterns of local tumor progression (LTP) after radiofrequency ablation (RF ablation) of colorectal cancer liver metastases (CRCLM) and to highlight the percentage of LTP not attributable to lesion size or RF ablation procedure-related factors (heat sink or insufficient ablation margin). METHODS: CRCLM treated by RF ablation at a single tertiary care center from 2004-2012, with a minimum of six months of post-procedure follow-up, were included in this retrospective study...
October 3, 2016: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
Flavia Del Porto, Noemi Cifani, Maria Proietta, Sara Perrotta, Raffaele Dito, Cira di Gioia, Raffaella Carletti, Luigi Rizzo, Gianluigi Orgera, Michele Rossi, Livia Ferri, Luigi Tritapepe, Maurizio Taurino
BACKGROUND: Atherosclerosis is a multifactorial disease characterized by an immune-inflammatory remodeling of the arterial wall. Tregs and Th17 subpopulations are detectable inside atherosclerotic plaque, however their behavior in symptomatic carotid artery stenosis (CAS) is not fully elucidated. The aim of this study was to evaluate Th17 and Tregs subsets and their ratio in patients affected by symptomatic and asymptomatic CAS. METHODS: 14 patients with symptomatic CAS (CAS-S group), 41 patients with asymptomatic CAS (CAS-A group), 32 subjects with traditional cardiovascular risk factors (RF group) and 10 healthy subjects (HS group) were enrolled...
October 3, 2016: Annals of Medicine
Juliette Ropars, Mathieu Lempereur, Sylvain Brochard, Carole Vuillerot, Vincent Tiffreau, Jean-Marie Cuisset, Yann Péréon, Fabien Leboeuf, Raphaël Gross, Ludovic Delporte, Yannick Delpierre
OBJECTIVE: The aim of this prospective study was to investigate changes in muscle activity during gait in children with Duchenne muscular Dystrophy (DMD). MATERIALS/PATIENTS AND METHODS: Dynamic surface electromyography recordings (EMGs) of 16 children with DMD and pathological gait were compared with those of 15 control children. The activity of the rectus femoris (RF), vastus lateralis (VL), medial hamstrings (HS), tibialis anterior (TA) and gastrocnemius soleus (GAS) muscles was recorded and analyzed quantitatively and qualitatively...
September 2016: Annals of Physical and Rehabilitation Medicine
Katharina Roser, Anna Schoeni, Martin Röösli
The aim of this study is to prospectively investigate whether exposure to radiofrequency electromagnetic fields (RF-EMF) emitted by mobile phones and other wireless communication devices is related to behavioural problems or concentration capacity in adolescents. The HERMES (Health Effects Related to Mobile phonE use in adolescentS) study sample consisted of 439 Swiss adolescents aged 12-17 years. Behavioural problems were assessed using the Strengths and Difficulties Questionnaire (SDQ), concentration capacity of the adolescents was measured by means of a standardized computerized cognitive test named FAKT...
September 17, 2016: International Journal of Hygiene and Environmental Health
Nigus Zegeye, Daniel Asrat, Yimtubezinash Woldeamanuel, Abebe Habte, Etsegenet Gedlu, Tone Tønjum, Abraham Aseffa
BACKGROUND: Among children diagnosed to have chronic rheumatic valvular heart disease (RHD) in Ethiopia, many have been observed to develop recurrence of rheumatic fever (RF) despite secondary prophylaxis. This study determined the throat culture positivity rate and drug susceptibility pattern of beta hemolytic streptococci (BHS) isolated from children attending a specialized cardiac clinic in Ethiopia. METHODS: Throat swabs were collected from 233 children receiving benzathine penicillin injection as secondary prophylaxis for RHD and cultured...
September 23, 2016: BMC Infectious Diseases
Soon Kiat Lau, Harshavardhan Thippareddi, David Jones, Mehrdad Negahban, Jeyamkondan Subbiah
A total of 50 different configurations of simple radiofrequency (RF) heating at 27.12 MHz of a shell egg were simulated using a finite element model with the purpose of pasteurizing the egg. Temperature-dependent thermal and dielectric properties of the yolk, albumen, and shell were measured, fitted, and introduced into the model. A regression equation that relates the top electrode voltage to the gap between the electrodes and vertical position of the egg was developed. Simulation and experimental results had good agreement in terms of temperature deviation (root mean squared error ranged from 0...
October 2016: Journal of Food Science
Andrea L Case, Findley R Finseth, Camille M Barr, Lila Fishman
Intraspecific coevolution between selfish elements and suppressors may promote interspecific hybrid incompatibility, but evidence of this process is rare. Here, we use genomic data to test alternative models for the evolution of cytonuclear hybrid male sterility in Mimulus In hybrids between Iron Mountain (IM) Mimulus guttatus × Mimulus nasutus, two tightly linked M. guttatus alleles (Rf1/Rf2) each restore male fertility by suppressing a local mitochondrial male-sterility gene (IM-CMS). Unlike neutral models for the evolution of hybrid incompatibility loci, selfish evolution predicts that the Rf alleles experienced strong selection in the presence of IM-CMS...
September 14, 2016: Proceedings. Biological Sciences
Ken W S Tan, J Edwin Dickinson, David R Badcock
Radial frequency (RF) textures (created by applying a sinusoidal modulation of orientation to an otherwise circular texture) have been shown to be globally processed. RF textures differ from RF patterns (paths deformed from circular by a sinusoidal modulation in radius) in that the elements need not be constrained to a specific path. In the natural environment, objects differ from their background in texture, and a bounding contour can mark this textural change. This study examines the extent to which modulation of texture sums across space and whether the inclusion of a boundary between two areas provides a segmentation cue that limits the area over which summation occurs...
September 1, 2016: Journal of Vision
Juliette Ropars, Mathieu Lempereur, Carole Vuillerot, Vincent Tiffreau, Sylviane Peudenier, Jean-Marie Cuisset, Yann Pereon, Fabien Leboeuf, Ludovic Delporte, Yannick Delpierre, Raphaël Gross, Sylvain Brochard
The aim of this prospective study was to investigate changes in muscle activity during gait in children with Duchenne muscular Dystrophy (DMD). Dynamic surface electromyography recordings (EMGs) of 16 children with DMD and pathological gait were compared with those of 15 control children. The activity of the rectus femoris (RF), vastus lateralis (VL), medial hamstrings (HS), tibialis anterior (TA) and gastrocnemius soleus (GAS) muscles was recorded and analysed quantitatively and qualitatively. The overall muscle activity in the children with DMD was significantly different from that of the control group...
2016: PloS One
Alexander Larin, Phillip C Womble, Vladimir Dobrokhotov
In this paper, we present a chemiresistive metal oxide (MOX) sensor for detection of hydrogen sulfide. Compared to the previous reports, the overall sensor performance was improved in multiple characteristics, including: sensitivity, selectivity, stability, activation time, response time, recovery time, and activation temperature. The superior sensor performance was attributed to the utilization of hybrid SnO₂/TiO₂ oxides as interactive catalytic layers deposited using a magnetron radio frequency (RF) sputtering technique...
2016: Sensors
Ken W S Tan, J Edwin Dickinson, David R Badcock
The modulation of orientation around radial frequency (RF) patterns and RF textures is globally processed in both cases. This psychophysical study investigates whether the combination-a textured RF path obtained by applying an RF texture to an RF contour-is processed like a texture or a contour when making judgements about shape. Unlike RF textures, the impression of a closed flow was not required for global integration of textured RF paths, suggesting that these paths were processed as second-order, or contrast-defined contours...
September 1, 2016: Journal of Vision
Rebecca E Ross, W Alex M Nimmo-Smith, Kerry L Howell
Larval dispersal is an important ecological process of great interest to conservation and the establishment of marine protected areas. Increasing numbers of studies are turning to biophysical models to simulate dispersal patterns, including in the deep-sea, but for many ecologists unassisted by a physical oceanographer, a model can present as a black box. Sensitivity testing offers a means to test the models' abilities and limitations and is a starting point for all modelling efforts. The aim of this study is to illustrate a sensitivity testing process for the unassisted ecologist, through a deep-sea case study example, and demonstrate how sensitivity testing can be used to determine optimal model settings, assess model adequacy, and inform ecological interpretation of model outputs...
2016: PloS One
Ariana Montes, Cristina Regueiro, Eva Perez-Pampin, Maria Dolores Boveda, Juan J Gomez-Reino, Antonio Gonzalez
A large fraction of the patients with rheumatoid arthritis (RA) develop specific autoantibodies, which until recently were only of two types, rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA). We aimed to replicate important findings about a recently described third type of specific autoantibodies, anti-carbamylated protein (anti-CarP) antibodies, because they have been described based only in the homemade ELISA from a single laboratory. Our study included 520 patients with established RA and 278 healthy controls of Spanish ancestry and it was done with an independently performed ELISA...
2016: PloS One
Ottar Gadeholt, Tobias Wech, Sebastian Schuh, Eva Scharbatke, Eva Ostermeier, Hans-Peter Tony, Marc Schmalzing
Rheumatoid arthritis (RA) is a chronic inflammatory disease leading to joint destruction. Serologically, it can be differentiated according to rheumatoid factor (RF), anti-cyclic citrullinated peptide antibodies (anti-CCP), or both. This differentiation is prognostically and therapeutically relevant. No method has been described to separate the two forms phenotypically. We hypothesize that a differentiation is possible by evaluating oscillation patterns in power Doppler sonography (PDS). In a prospective study, 20 patients with anti-CCP-positive RA and 20 patients with anti-CCP-negative RA with active wrist synovitis were examined...
August 9, 2016: Rheumatology International
X Leng, A T Bollinger, I Božović
Epitaxial indium tin oxide films have been grown on both LaAlO3 and yttria-stabilized zirconia substrates using RF magnetron sputtering. Electrolyte gating causes a large change in the film resistance that occurs immediately after the gate voltage is applied, and shows no hysteresis during the charging/discharging processes. When two devices are patterned next to one another and the first one gated through an electrolyte, the second one shows no changes in conductance, in contrast to what happens in materials (like tungsten oxide) susceptible to ionic electromigration and intercalation...
2016: Scientific Reports
Xavier Puéchal
Whipple's disease is a chronic systemic infection that is due to the bacterial agent Tropheryma whipplei and can be cured by appropriate antibiotic therapy. The typical patient is a middle-aged man. Rheumatologists are in a prime position to handle Whipple's disease. The classical presentation combines weight loss and diarrhea, preceded in three-quarters of patients by a distinctive pattern of joint manifestations that run an intermittent course, at least initially. The mean time from joint symptom onset to the diagnosis of Whipple's disease is 6 years...
August 5, 2016: Joint, Bone, Spine: Revue du Rhumatisme
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