Mixed Hill Cipher methods with triple pass protocol methods

Hill Cipher is a reimbursement coding system that converts specific textual content codes into numbers and does no longer exchange the location of fixed symbols. The symbol modifications simplest in step with the English letter table inclusive of (26) characters handiest. An encoded Hill Cipher algorithm was used that multiplication the square matrix of the apparent text with a non-public key and then combined it with the Triple Pass Protocol method used to repeat the encryption three times without relying on a personal key. Also, you could decode the code and go back it to the express textual content. The cause of mixing algorithms is to cozy the message without any key change among the sender and the recipient

Towards sustainable, solution-processed organic field-effect transistors using cashew gum as the gate dielectric

To realize low-cost, environmentally friendly electronic devices and circuits, there is currently a strong trend to explore plant-based dielectric materials because they can be responsibly sourced from agricultural or forest vegetation, are generally water-soluble, and possess good electrical insulator properties. In this contribution, organic field-effect transistors (OFETs) using a biopolymer dielectric obtained from exudates of Anacardium occidentale Linn. trees, namely, cashew gum (CG), are reported. To characterise the physical and dielectric properties of the gum, thin films and metal-insulator-metal (MIM) capacitors were prepared and characterized. To evaluate the material’s performance in OFETs, bottom-gate top-contact (BGTC) p-channel poly [3,6-di(2-thien-5-yl)-2,5-di(2-octyldodecyl)-pyrrolo (3,4-c)pyrrole-1,4-dione) thieno (3,2-b) thiophene]:polymethyl methacrylate (DPPTTT:PMMA) transistors were engineered and studied. The fabricated MIM capacitors display a comparatively high areal capacitance of 260 nF/cm2 at 1 kHz for 130 nm thick films. As a result, the solution-processed DPPTTT:PMMA OFETs favourably operate at 3 V with the average saturation field-effect mobility equal to 0.20 cm2/Vs., threshold voltage around −1.4 V, subthreshold swing in the region of 250 mV/dec, and ON/OFF current ratio well above 103. As such, cashew gum emerges as a promising dielectric for sustainable manufacturing of solution-processed organic FETs

Statistical estimation of Rosetta branch water quality using multi-spectral data

This research aimed at assessing the approaching of Multi-Spectral Remote Sensing (MS-RS) data for estimating water quality (WQ) of Rosetta branch (RB) using stepwise regression technique. The methodology was based on developing an algorithm for estimating WQ using the Worldview-2 bands reflectance. Results showed that the optical WQ parameters as total suspended solids (TSS) and chlorophyll-a (Chl-a) were acceptably estimated using MS-RS data with high confident. The optical WQ parameters are the most likely affecting the reflected radiation that sensed by the satellite. However, this research expanded to select non-optical WQ parameters such as pH value and biological demand (BOD) that is less likely affecting the radiation reflectance, nevertheless, still correlated to optical WQ parameters. The determination coefficient showed significant high values for ortho-phosphate (OP), total dissolved solids (TDS), Chl-a and pH with different mathematical formulations depending on pollution level. The results showed that, it is promising to perform routine WQ monitoring programs on different water bodies, even for those has relative narrow width as RB, using MS-RS data. Keywords: Rosetta branch, Water quality, Remote sensing, Worldview-2, Stepwise regressio

A comprehensive review on modelling the adsorption process for heavy metal removal from waste water using artificial neural network technique

Water is the most necessary and significant element for all life on earth. Unfortunately, the quality of the water resources is constantly declining as a result of population development, industry, and civilization progress. Due to their extreme toxicity, heavy metals removal from water has drawn researchers' attention. A lot of scientific applications use artificial neural networks (ANNs) because of their excellent ability to map nonlinear relationships. ANNs shown excellent modelling capabilities for the water treatment remediation. The adsorption process uses a variety of variables, making the interaction between them nonlinear. Selecting the best technique can produce excellent results; the adsorption approach for removing heavy metals is highly effective. Different studies show that the ANNs modelling approach can accurately forecast the adsorbed heavy metals and other contaminants in order to remove them

Polymorphisms of MicroRNA-146a Gene in Behcet’s Disease in Iraqi Patients

The present study was carried out to detect the association of miR-146a haplotypes polymorphisms with Behcet’s Disease in Iraqi patients, PCR-SSCP technique used in present study, blood was used to DNA extraction, the results show that there was strong association between miR-146a and Behçet’s Disease there were two patterns (A and B), polymorphisms show significant differences (p>0.05) between patients and control where haplotype A was appeared in control with (4% ) while in patients (43%) and haplotype B was appeared in control with (96% ) while in patients (57%). The present study concluded that there was association between miR-146a polymorphisms with Behçet’s Disease, our finding need more investigation to use this polymorphism as early indication of Behçet’s Disease incidence

Clinical features and outcome of sickle cell anemia in a tertiary center: A retrospective cohort study

Introduction: Sickle cell anemia (SCA) is one of the most common genetic diseases worldwide. Patients with SCA present with varied clinical features and complications that may affect many organs in the human body. There are few treatment options for SCA, and patient responses vary; the only curative therapy is a stem cell transplant or gene therapy. We seek to study the clinical features and treatment options for patients with sickle cell disease treated in King Abdulaziz Medical City, Riyadh. Methods: This study was a retrospective cohort study of all adult SCA patients who were admitted to our institution during the period from 1983 to 2016. Data were entered into Excel spreadsheets and managed with SPSS. Chi-square test was used to compare responses to therapy and in patients with different presentations. Results: A total of 106 patients with sickle cell disease were included in this study. The percentages with respect to hospital admissions per year were as follows: 34.9% (37 patients) were never admitted, 26.4% (28 patients) were admitted fewer than 2 times, 24.5% (26 patients) were admitted 3–5 times, and 13.2% (14 patients) were admitted more than 5 times. The number of complications was used to measure the severity of the disease. The disease severity was higher in males than in females (67.3% vs. 32.7%, respectively; P = 0.018). The disease severity was higher in those who were born in the Western and Southwestern areas than in other areas (84.2% vs. 15.8%, respectively; P = 0.007). Hydroxyurea significantly reduced the severity of SCA with a P = 0.002. Conclusion: Our study showed that vaso-occlusive crisis was the most common complication and indication for hospital admission. Treatment with hydroxyurea led to a significant reduction in the number of hospital admissions

Khaya gum – a natural and eco-friendly biopolymer dielectric for low-cost organic field-effect transistors (OFETs)

Nature provides a wide range of dielectric biopolymers that can be used in electronic devices. In this work, organic field-effect transistors (OFETs) using khaya gum (KG), a natural, biodegradable biopolymer that can be directly collected from khaya senegalensis trees, as the gate dielectric are demonstrated. The fabricated bottom gate/top contact poly (3,6-di (2-thien-5-yl)-2,5-di (2-octyldodecyl)-pyrrolo [3,4-c] pyrrole-1,4-dione) thieno [3,2-b] thiophene) (DPPTTT) –(polymethylmethacrylate) (PMMA) OFETs operate at 3 V with a saturation field-effect mobility (μsat) 0.3 cm2V−1 s−1, threshold voltage (Vth) -1.3 V, subthreshold swing (SS) 450 mV/dec, and current on/off ratios (ION/OFF) larger than 3 × 103. Significantly, the gate leakage current (IG) does not exceed 10–8 A for the gate-source voltage (VGS) ≤-3 V. UV–Vis spectra analysis shows that the prepared khaya gum films exhibit low absorbance and high transparency (up to 90%) with a calculated optical band gap of about 4.3 eV. Thermal characterization shows two stages of decomposition and a glass transition at around 60 °C. Characterization of metal–insulator-metal (MIM) capacitors using khaya gum reveals that the KG-based MIM capacitors possess a relatively high capacitance per unit area (Ci) of 130 ± 3 nF/cm2 at 1 kHz. As a result, khaya gum emerges as the dielectric of choice for low voltage, transparent OFETs where environmentally friendly device manufacturing is required

Adverse effects of BCG vaccine 1173 P2 in Iran: A meta-analysis

Although in the last two decades the World Health Organization (WHO) has introduced tuberculosis as “a threat to global”, the vaccination with the Mycobacterium bovis Bacillus Calmette-Guerin (BCG) is the only way for the prevention of this fatal infectious disease. Despite of the efficacy of BCG vaccine especially against infants' meningitis, it has still some limitations due to a variety of adverse effects. Many studies have evaluated the side effects of different strains of BCG vaccines in different countries. In Iran, some studies have been done so far to evaluate the adverse effects of 1173 P2 strain which is used for BCG vaccination. Each of these studies have used different standardization and sampling methods. This review will survey all studies that have been published about adverse effects of 1173 P2 strain of BCG vaccine in Iran using data mining methods