FGPA Implementation of Low-Complexity ICA Based Blind Multiple-Input-Multiple-Output OFDM Receivers

In this thesis Independent Component Analysis (ICA) based methods are used for blind detection in MIMO systems. ICA relies on higher order statistics (HOS) to recover the transmitted streams from the received mixture. Blind separation of the mixture is achieved based on the assumption of mutual statistical independence of the source streams. The use of HOS makes ICA methods less sensitive to Gaussian noise. ICA increase the spectral efficiency compared to conventional systems, without any training/pilot data required. ICA is usually used for blind source separation (BSS) from their mixtures by measuring non-Gaussianity using Kurtosis. Many scientific problems require FP arithmetic with high precision in their calculations. Moreover a large dynamic range of numbers is necessary for signal processing. FP arithmetic has the ability to automatically scale numbers and allows numbers to be represented in a wider range than fixed-point arithmetic. Nevertheless, FP algorithm is difficult to implement on the FPGA, because the algorithm is so complex that the area (logic elements) of FPGA leads to excessive consumption when implemented. A simplified 32-bit FP implementation includes adder, Subtractor, multiplier, divider, and square rooter The FPGA design is based on a hierarchical concept, and the experimental results of the design are presented

A EVIDENCE MULTICOPY DYNAMIC DATA POSSESSION IN MULTI CLOUD COMPUTING SYSTEM

Now a day more and more organizations increasing and are opting for outsource data to remote cloud services provider .the customers can rent the CSPs storage infrastructures to stores and retrieves almost unlimited amount of data by paying fees metered in gigabyte/month. In this paper, proposes a map-based provable multicopy dynamic data possession (MB-PMDDP) scheme that’s has to follows features: 1) its provide an evidences to  customer that the CSPs is not going to  cheat by storing the copy of data; 2) its support outsourcing of dynamic data and its support block levels operation,  such as block modifications, insertion, deletion, and append; and 3) it allows authorized users to seamlessly access the file copies stored by the CSP. It gives a comparative analysis of the proposed MB-PMDDP scheme with a reference model obtained by extends existing provable possessions of dynamics single copies scheme.

Lignolytic Enzymes of a Mushroom Stereum ostrea Isolated from Wood Logs

Production of lignolytic enzymes by the mushroom fungus Stereum ostrea in liquid medium under conditions of vegetative growth was examined for 10 days in comparison to the reference culture Phanerochaete chrysosporium. Though growth and secretion of extracellular protein by S. ostrea were comparable to those of P. chrysosporium, yields of laccase enzyme by S. ostrea were higher than laccase titres of P. chrysosporium by more than 2 folds on the peak production time interval (IVth day of incubation). S. ostrea yielded titres of 25 units of laccase/ml as against 8.9 units of laccase/ml on the IVth day of incubation. Stereum ostrea also exhibited activities of other lignolytic enzymes, lignin peroxidase (LiP) and manganese peroxidase (MnP), higher than the reference culture. Growth of S. ostrea on the medium in the presence of Remazol orange 16 resulted in the decolourisation of dye, confirming the presence of lignolytic enzymes. S. ostrea appears to be a promising culture with complete lignolytic system

A randomized open label parallel group study comparing the safety, effectiveness and adherence between 2% fusidic acid cream versus 1% retapamulin ointment in children with impetigo

Background: Impetigo is a contagious bacterial skin infection that affects both adults and children. Topical antibacterials such as mupirocin and fusidic acid are the most commonly used in both primary and secondary impetigo. Clinical trials have shown high efficacy of retapamulin in the treatment of secondary impetigo. However, its use in primary impetigo is limited. To this purpose, we compared the safety, efficacy and adherence to treatment of fusidic acid with retapamulin in primary impetigo.Methods: A total of 50 patients with a clinical diagnosis of primary impetigo, between 2-12 years of age, having 0.05). Both drugs were well tolerated.Conclusions: Both fusidic and retapamulin showed similar clinical success in patients with primary impetigo. Since fusidic acid has anti-inflammatory property and its treatment is cost-effective, it can be considered as first-line treatment and retapamulin in fusidic acid-resistant impetigo

ANTI-MICROBIAL SPECTRUM FOR BACTERIAL UROPATHOGENS IN ADULT PATIENTS ASSOCIATED WITH URINARY TRACT INFECTIONS AT GOVERNMENT TEACHING HOSPITAL

Objective: Urinary tract infection (UTI) is one of the most common bacterial infections, affecting 150 million people each year worldwide. UTI’s are a significant cause of morbidity in females, infant boys and older men of all age groups. The most common causative agent for UTI is uropathogenic Escherichia coli. Patients suffering from symptomatic UTI are commonly treated with antibiotics. The present study was undertaken to find the etiology, risk factors, clinical pattern, isolated uropathogens and therapeutic profile of UTI. Methods: It was a prospective, observational, descriptive, cross-sectional study conducted for a period of 6 mo from April 2022 to September 2022 at RIMS, Kadapa. A total of 35 UTI patients were recruited based on study criteria. The data was collected, analysed, summarised as averages. Graph pad prism software was applied for statistics by using Microsoft excel. Fig. represented through bar graphs, pie charts. Results: In a total of 35 patients suffering from UTI, we found that 7 were males and 28 were females, based on age groups; 2 patients belong to 21-30 y and 18 patients belong to 31-40 y, 10 patients belong to 41-50 age group, 3 patients belong to 51-60 y. In a total of 82 risk factors 40% were diabetes mellitus, 20% were hypertension, 17% were renal calculi, 5% were cyanosis, 11% were BPH, 6% were ESRD. In a total of 95 clinical symptoms, we observed fever (32.5%) as a major symptom, followed by burning micturition (16.5%). Other signs like abdominal pain, urine urgency, hematuria were also reported. On assessing urine culture, uropathogens Escherichia coli (35%) was isolated in majority UTI cases followed by Staphylococcus aureus (17%), Pseudomonas aeruginosa (14%), Candida species (14%), Enterococcus faecium (11%), Proteus species (8%). Total drugs prescribed were 150. Fluoroquinolones (48 in number, 32%) were the most common prescribed antibiotic drug category, followed by Anti-mycobacterial (32 in number, 21%), Cephalosporins (25 in number, 17%), Penicillins (20 in number, 13%), Macrolides (14 in number, 10%), Combinational therapy (11 in number, 7%). Conclusion: The UTI prevalence was more in females at GGH–RIMS, Kadapa. E. coli was the most common species isolated in UTI patients. At research site, physicians frequently prescribed medications were Ciprofloxacin (fluoroquinolones) and Nitrofurantoin (anti-mycobacterial) for UTI patients

Asymmetric Robinson Annulation of 3‑Indolinone-2-carboxylates with Cyclohexenone: Access to Chiral Bridged Tricyclic Hydrocarbazoles

A chiral bifuntional thiourea catalyzed diastereo- and enantioselective Michael addition followed by an intramolecular Aldol reaction of 3-indolinone-2-carboxylates with cyclohexenone has been accomplished using a chiral thiourea catalyst. It is a novel strategy for the construction of chiral bridged tricyclic hydrocarbazole derivatives bearing four contiguous stereocenters with excellent diastereo- and enantioselectivity