Window Functions and Their Applications in Signal Processing

Window functions—otherwise known as weighting functions, tapering functions, or apodization functions—are mathematical functions that are zero-valued outside the chosen interval. They are well established as a vital part of digital signal processing. Window Functions and their Applications in Signal Processing presents an exhaustive and detailed account of window functions and their applications in signal processing, focusing on the areas of digital spectral analysis, design of FIR filters, pulse compression radar, and speech signal processing. Comprehensively reviewing previous research and recent developments, this book: Provides suggestions on how to choose a window function for particular applications Discusses Fourier analysis techniques and pitfalls in the computation of the DFT Introduces window functions in the continuous-time and discrete-time domains Considers two implementation strategies of window functions in the time- and frequency domain Explores well-known applications of window functions in the fields of radar, sonar, biomedical signal analysis, audio processing, and synthetic aperture rada

Interplanetary Consequences of a Large CME

We analyze a coronal mass ejection (CME) which resulted from an intense flare in active region AR486 on November 4, 2003. The CME propagation and speed are studied with interplanetary scintillation images, near-Earth space mission data, and Ulysses measurements. Together, these diverse diagnostics suggest that the internal magnetic energy of the CME determines its interplanetary consequences.Comment: 5 pages, 9 figures, To appear in "Magnetic Coupling between the Interior and the Atmosphere of the Sun", eds. S.S. Hasan and R.J. Rutten, Astrophysics and Space Science Proceedings, Springer-Verlag, Heidelberg, Berlin, 200

Prescription status of Respiratory tract infection – a survey report

Objective: The present study was carried out to investigate the Self-medication and non-doctor prescribing of drugs used for respiratory tract infection in developing countries. Problems and factors responsible for this practice in SouthIndia.Methods: The survey was based on the questionnaire method; it was carried out from 1000 respondents at different pharmacies.Results: Literate persons (56%), monthly income between INR.3000- INR.10000 (39%) and also age group between 21-40years (66%) are more prone to self medication. The reason for deviation in self-medication is due to economical condition (57%), lack of time (22%), mild illness (12%), less treatment awareness (9%). Apart from this, some deviations are commonly seen among the prescription following respondents. Most probable respondents are due to financial condition (65%), others are brand name, dosage form, etc.Conclusion: The present study was concluded that pharmacists are one of the key person for prevention of communicable and non-communicable diseases and also improving patient compliance. These types of problems can be prevented by patient education should be strengthened.Keywords: Respiratory tract infection, prescription, self-medication, patient counseling, role of pharmacist

First record of Parapercis clathrata (Perciformes: Pinguipedidae) from Indian waters

A single specimen of latticed sandperch, Parapercis clathrata measuring 163 mm total lenth was caught in a trawler off Tuticorin, south-east coast of India in February 2010. Morphometric and meristic characters of the recorded specimen are described. This record constitutes the first occurrence of the species in Indian waters and a substantial westward extension of its known geographical distribution

Axillary Arch (Of Langer): Incidence, Innervation, Importance

The present study was planned to find out the incidence of accessory muscle arches in the axilla of 68 upper limb (38 right and 30 left) dissections. Langer’s arch was observed in one right limb out of the 68 limbs, total incidence was 1.47%. The arch extended from the latissimus dorsi to the fascia covering the biceps brachii. The incidence is low in South Indian population (Dravidians) compared to the various other populations reported in literature. A branch from the lateral cord of brachial plexus supplied it in contrast with the previous reports. The surgical significance of this muscle is reviewe

On an unusual swarming of the planktonic blue-green algae Trichodesmium Spp., off Mangalore

Instances of discoloured water phenomenon in the Indian waters have been reported earlier.This is caused by a variety of organisms such as blue-green algae, cystoflagellates and dinoflagellates, and is sometimes associated with adverse effects on the marine fauna including fish

Bio synthesis, Characterization of ZnO Nanoparticles from Scoparia dulcis L. plant extract and its in-vitro Antioxidant, Acetylcholinesterase Activity

The current investigation is focused on the use of green synthesis methods for zinc oxide nanoparticles (ZnO NPs) from Scoparia dulcis L. extract (SDE). SDE-mediated ZnO NPs (SDE-ZnO-NPs) were made using a simple and eco-friendly method that required little reaction time and calcinations temperature. UV-Vis, FTIR, X-ray powder diffraction, SEM, TEM & EDAX were used into characterizes the skeletal and synthetic properties concerning biosynthesized ZnO nonmaterial. The UV–Visible spectroscopy absorption peak for SDE-ZnO-NPs was found to be at 380 nm, confirming the production of ZnO NPs. The FTIR spectrum also revealed bioactive functional groups as well as metal-oxygen groups. Synthesized ZnO NPs had a rod shape in 200 nm, according to TEM examination. The Zn and O in the produced ZnO NPs were approved by the EDAX analysis. The XRD results revealed that it had a crystal structure that was similar to SDE-ZnO-NPs. The dose-related Acetylcholinesterase inhibitory action of SDE-ZnO NPs was determined utilizing the Ellman’s test. AChE activity of the synthesized nanoparticles showed potential inhibitory activity with IC50 values of 75.34 µg/mL. The antioxidant activity was investigated the biosynthesized ZnO-NPs using DPPH, ABTS assay

E. coli AB 1157 susceptibility test, MTT assay on MCF-7 and HeLa cell lines of root and leaf fractions of Viburnum Linn. species

525-530The aim of this study was to evaluate mutagenic bacterial susceptibility and cytotoxic potency of Viburnum coriaceum Blume and Viburnum erubescens Wall.ex DC in order to report the actual chemotherapeutic potentials of these two species. The methanolic (80%) leaf and chloroform root extracts of Viburnum Linn. Species were tested for their bacterial strain based cytotoxicity employing Agar diffusion method suing E. coli AB 1157 strain. Also, the MTT assay was carried out employing MCF-7 breast cancer cell lines and HeLa cervical cell lines. It was started with IC50 value determination of the selected test extracts from the results of bacterial strain based cytotoxicity. Upon increase in concentration up to 1000 µg/mL in agar diffusion cytotoxicity studies VCMLE, VEMLE and VCCRE had shown diameter of inhibition zone 10 mm, 9 mm and 10 mm respectively. Among other extracts, the VEMLE and VCCRE were selected to go ahead with anticancer activity by MTT assay. The potentials of extracts through cytotoxicity mechanism had produced 30-40% protection against cancer cell lines. It was concluded that VEMLE and VCCRE had produced the cytotoxic effect on E. coli AB 1157 strain. and were selected for the cytotoxic studies. The effects exhibited by the selected extracts may be due to the presence of diverse number of active constituents present in Viburnum Linn species also may be to the presence of unreported constituents

E. coli AB 1157 susceptibility test, MTT assay on MCF-7 and HeLa cell lines of root and leaf fractions of Viburnum Linn. species

The aim of this study was to evaluate mutagenic bacterial susceptibility and cytotoxic potency of Viburnum coriaceumBlume and Viburnum erubescens Wall.ex DC in order to report the actual chemotherapeutic potentials of these two species.The methanolic (80%) leaf and chloroform root extracts of Viburnum Linn. Species were tested for their bacterial strainbased cytotoxicity employing Agar diffusion method suing E. coli AB 1157 strain. Also, the MTT assay was carried outemploying MCF-7 breast cancer cell lines and HeLa cervical cell lines. It was started with IC50 value determination of theselected test extracts from the results of bacterial strain based cytotoxicity. Upon increase in concentration up to 1000μg/mL in agar diffusion cytotoxicity studies VCMLE, VEMLE and VCCRE had shown diameter of inhibition zone 10 mm,9 mm and 10 mm respectively. Among other extracts, the VEMLE and VCCRE were selected to go ahead with anticanceractivity by MTT assay. The potentials of extracts through cytotoxicity mechanism had produced 30-40% protection againstcancer cell lines. It was concluded that VEMLE and VCCRE had produced the cytotoxic effect on E. coli AB 1157 strain.and were selected for the cytotoxic studies. The effects exhibited by the selected extracts may be due to the presenceof diverse number of active constituents present in Viburnum Linn species also may be to the presence ofunreported constituents