Oxidative stress products in type 2 diabetes and their relation to paraoxonase 1 activity

The present study indicated a significant increase in the serum advanced oxidn. protein products (AOPP) and malondialdehyde (MDA) a marker of lipid peroxidn., in diabetic group compared to control group. AOPP was found to be pos. correlated with MDA and Glycated Hb [HbA1c]​. AOPP was neg. correlated with Paraoxonase- 1 (PON1) and this correlation was statistically not significant. PON1 activity was found to be decreased in diabetic group compared to control. Neg. correlation was found between PON1 activity and MDA, HbA1c and with diabetic period. There was no correlation found between AOPP and diabetic period. On other hand, MDA level was pos. correlated with HbA1c and diabetic period. The studies also indicated that there is no difference in the level of AOPP, MDA and PON1 between vegetarian and non-​vegetarian subjects. The neg. correlation between PON1 level with the levels of MDA, AOPP, HbA1c, and diabetic period indicates the role of PON1 enzyme in oxidative stress. The pos. correlation between the levels of MDA and AOPP supports the coupling process of lipid and protein oxidn

Design of frequency selective limiting circuit

This paper explains the design of frequencyselective limiting circuit. The circuit is typically based on nonlinear matched reflection-mode bandstop resonator. This type of Frequency Selective Limiters achieves fast switching, high-level of power limiting, and flexible channel bandwidth. For single channel limiting, a device with one resonator (first order) produced a band-stop response centred at 2 GHz with 250 MHz of limiting bandwidth, 0 dBm limiting threshold, and 32 dB limiting level and it gave an all-pass response with less than 2.5 dB insertion loss at low RF powers. Multi-resonator filter has been used in order to improve the performance of the device. The prototype will produce intermodulation distortions and response time. Simulated results show an excellent highly selective bandstop performance at high powers with a near all-pass response at low signal powers

Comparison of Performance based on Power of Energy Encryption in Medium Field for Wireless Power Transfer System

Encryption is a very important technique used to protect energy transmission channels from an unauthorized receiver. It can be utilized to transmit data securely over the wireless medium. Encryption techniques of wireless power transfer (WPT) are important in the research on the effects of security key for security of energy transfer to the authorized receiver. The energy encryption scheme of WPT is proposed to chaos theory. Chaos theory is applicable to the logistic map to propose as a security key to chaotically regulate the switching frequency. Furthermore, for chaos theory characteristic effect power and distance performance. Therefore, this paper investigates mainly effective power based on mobile charging application. This research is focusing on performance on power of energy encryption in medium field for wireless power transfer system. This research is dedicated to the comparison of performance in power based on mobile charging application. The optimization to transport the power in this research based on comparison of power is 10W. The research utilized MATLAB simulation to compare the performance

Development of Mission Control Unit Prototype for Small Class Satellite Payloads

In this paper, Mission Control Unit (MCU) prototype for small class satellite payloads is developed with the goal of providing schools and institutions to low cost design that could be easily integrated and augmented for mission–specific needs. Basic design platform has been developed to demonstrate the proof of concept model of MCU for small satellites by using commercial off-the-shelf (COTS) components. Many commercial companies have emerged to cater this objective however most of them provide expensive on-the-shelf solution, therefore this paper proposed a low cost, compact platform design. This paper presents the design of payload-ready prototype unit of mission control subsystem that is built on Arduino based microcontroller with wireless transmission by using COTS components. This platform is intended mainly for educational purposes, specifically to expose high school and university students or researchers to satellite engineering concept. Other than that, it is developed to provide platform for spacecraft developers, researchers and others to test their scientific missions or perform their research with reduced costs. In addition, the end-product of this project can be used for public outreach mission involving local communities of amateur radio operators and school students. This project has produced a prototype that is compatible with 2U CubeSat platform standard, requires no external wiring with all subsystems, and can be customized to perform many mission themes over amateur radio band

Use of Complex Lie Symmetries for Linearization of Systems of Differential Equations - II: Partial Differential Equations

The linearization of complex ordinary differential equations is studied by extending Lie's criteria for linearizability to complex functions of complex variables. It is shown that the linearization of complex ordinary differential equations implies the linearizability of systems of partial differential equations corresponding to those complex ordinary differential equations. The invertible complex transformations can be used to obtain invertible real transformations that map a system of nonlinear partial differential equations into a system of linear partial differential equation. Explicit invariant criteria are given that provide procedures for writing down the solutions of the linearized equations. A few non-trivial examples are mentioned.Comment: This paper along with its first part ODE-I were combined in a single research paper "Linearizability criteria for systems of two second-order differential equations by complex methods" which has been published in Nonlinear Dynamics. Due to citations of both parts I and II these are not replaced with the above published articl

Clinical and microbiologic determinants of serious bloodstream infections in Egyptian pediatric cancer patients: a one-year study

SummaryObjectives:Bloodstream infections (BSI) remain a major cause of morbidity and death in patients undergoing treatment for cancer. However, all recent epidemiological and therapeutic studies underline the absolute need for knowledge of the factors governing the infections in each center. The aim of this study is to identify the factors affecting BSI in the pediatric service of the National Cancer Institute (NCI) at Cairo University. More tailored policies for the treatment of patients with febrile neutropenia following chemotherapy can then be created.Patients and methods:Over a 12-month period, all children with cancer and fever, with or without neutropenia, who were admitted to the NCI for empirical therapy of febrile episodes and who had a microbiologically confirmed bloodstream infection were studied retrospectively.Results:A total of 328 BSI occurred in 1135 febrile episodes in pediatric cancer patients at the NCI in one year. Gram-positive bacteria were isolated in 168 episodes (51.2%) and 61.9% of the total isolates (either single or mixed), Gram-negative in 97 (29.6%), and mixed infections in 45 (13.7%). The common causative agents of bloodstream infections in this study were coagulase-negative staphylococci (16.2%), Staphylococcus aureus (13.4%), Streptococcus spp. (12.1%) followed by Acinetobacter spp. (6.7%) and Pseudomonas spp. (5.5%). Fungemia was encountered in 18 episodes, being mixed in nine of them. A more serious BSI in terms of a prolonged episode was encountered in 30.2% of the episodes and was significantly associated with patients being hospitalized, having intensified chemotherapy, polymicrobial and fungal infection, lower respiratory tract infections and persistent neutropenia at day seven.Conclusions:In a large population of children, common clinical and laboratory risk factors were identified that can help predict more serious BSI. These results encourage the possibility of a more selective management strategy for these children

Baseline Classification Based PCA on Human in Passive Forward Scattering Radar

First and foremost, one purpose of this radar is for detecting objects that passes through the system, whereby the detecting angle is near 180 degrees. Passive radar detects presence in terms of direction and speed of aircrafts, ships and other objects at receiver baseline, by receiving illumination source from a commercial transmitter. The system of radar consists of a receiver that functions to determine the properties of the passing object. There are many techniques that can be used in passive radar but in this study, the forward scattering technique is used for detecting human Doppler signature at receiver baseline to the classification system. A commercially available telecommunication antenna is used as the transmitter, which transmits electromagnetic wave that is received by a receiver antenna. We called this system passive radar because it does not emit any waves of its own. The data of Doppler signature is produced when an object passes through the transmitter and receiver. Then, the data received by the receiver is collected and analyzed using MATLAB software. The data collection was implemented near the seaside at Morib beach, Malaysia. We have identified the site as having a strong signal of LTE with a signal frequency of 1.8 GHz and 2.6 GHz