Double Inverse Stochastic Resonance with Dynamic Synapses

We investigate the behavior of a model neuron that receives a biophysically-realistic noisy post-synaptic current based on uncorrelated spiking activity from a large number of afferents. We show that, with static synapses, such noise can give rise to inverse stochastic resonance (ISR) as a function of the presynaptic firing rate. We compare this to the case with dynamic synapses that feature short-term synaptic plasticity, and show that the interval of presynaptic firing rate over which ISR exists can be extended or diminished. We consider both short-term depression and facilitation. Interestingly, we find that a double inverse stochastic resonance (DISR), with two distinct wells centered at different presynaptic firing rates, can appear.Comment: 12 pages, 7 figure

Modeling and simulation of the ferroelectric based micro gyroscope: FEM analysis

Cataloged from PDF version of article.This paper presents the design and modeling of micro-electromechanical systems (MEMS) on the ternary ferroelectric compounds (PZT) based by using finite element model (FEM) simulation. The conceptual framework establishes five steps to perform the critical analysis: design a novel structure, define the failure mechanisms under the given conditions, analyze different vibrations, analyze the operation principle, and detect resonance modes. In addition, MEMS failure modes were analyzed under different scenarios and the obtained results discussed

The relationship between serum bilirubin level with interleukin.6, interleukin.10 and mortality scores in patients with sepsis

Context: Bilirubin has been shown to influence the mechanisms of both apoptosis and inflammation.Aims: The aim of the following study is to investigate the relationship between the serum bilirubin level with sepsis progression.Settings and Design: A total of 20 patients from intensive care unit were included for this study.Materials and Methods: Patients were divided into two groups: Patients diagnosed with sepsis according to the American College of Chest  Physicians/Society of Clinical Care Medicine consensus conference criteria (n = 10) and patients treated for various other diagnoses (n = 10). Blood samples were collected for both groups at the time of origin (defined as the time of diagnosis) and 24 and 48 h after diagnosis. Serum interleukin (IL).6, IL.10 and bilirubin levels were analyzed and compared. Acute physiology and chronic health evaluation (APACHE) II and sepsis related organ failure (SOFA) scores of the patients were also evaluated. Statistical Analysis Used: We used Statistical Package for Social Sciences (SPSS for Windows, version 17.0, SPSS Inc. 233 South Wacker Drive, Chicago) for statistical analysis.Results: At all.time intervals, serum IL.6, IL.10 and total, direct and  indirect serum bilirubin levels were significantly higher in the sepsis group (P < 0.05); APACHE II and SOFA scores were also significantly higher. Both SOFA scores and serum IL.10 levels were positively correlated with bilirubin levels 24 h after diagnosis (P < 0.05, r = .0.76).Conclusions: Although levels of bilirubin and other associated parameters were higher for the sepsis group, only SOFA score and bilirubin levels were correlated. Because bilirubin is already a SOFA parameter, this correlation was not considered as clinically significant.Key words: Acute physiology and chronic health evaluation, bilirubin, interleukin.6, interleukin.10, sepsi

A Research of nasal methicillin resistant/sensitive Staphylococcus aureus and pharyngeal beta-haemolytic Streptococcus carriage in midwifery students in Kahramanmaras, Eastern Mediterranean Region of Turkey

Background: In the hospitals where hygienic conditions are not provided, nasal methicillin resistant/sensitive Staphylococcus aureus (MRSA/MSSA) colonization is seen in the hospital personnel and patients. Both the individuals’ themselves being MRSA/MSSA carriers and also other people around them are under risk and this bacterium leads to nasal colonization and then can propagate through contaminated hands and hospital materials.Objective: In this study, it was aimed to research MRSA/MSSA and beta-haemolytic streptococcus (BHS) carriage in the nose and throat flora of students of, School of Health.Methods: In the study, total of 160 midwifery students taking midwifery education was included in the research but 135 (84.4 %) out of 160 students were able to be reached. The nose and throat swab samples taken from students were examined through microbiological methods.Results: 14.1 % of students were nasal MSSA carrier. While there wasn't the nasal MRSA carrier among students attending the study in the 1st and 2nd class, 3.3 % (1 person) of the 3rd class students and 10.0 % (3 people) of the 4th class students were the nasal MRSA carrier. In addition, BHS carriage was determined in 1.5 % of students and there wasn't any difference between classes.Conclusions: These results indicate that midwifery students might have been contaminated with MSSA/MRSA during clinical practice. That MSSA/MRSA being an important pathogen is seen in midwifery students taking education in the birth units threatens the mother-child health. [Ethiop. J. Health Dev. 2010;24(1):57-60

Poster 350: Neurosarcoidosis Presenting as a Central Cord Syndrome: A Case Report

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146922/1/pmr2s256a.pd