71 research outputs found
Low Complex And Reconfigurable Fir Filter Using Low Power Architecture
Coefficient multipliers are the hindrances exhibit in programmable finite impulse response (FIR) advanced channels. As the channel coefficients change either powerfully or occasionally, the scan for basic sub articulations for multiplier less execution should be performed over the whole extent of numbers of the coveted exactness, and the measure of movements related with each recognized basic sub articulation should be retained. The multifaceted nature of a quality inquiry is in this manner past the current outline calculations in light of ordinary double and marked digit portrayals. Another plan worldview for the programmable FIR channels by misusing the expanded twofold base number framework (EDBNS). Because of its sparsity and intrinsic reflection of the whole of parallel moved fractional items, the sharing of adders in the time-multiplexed various consistent increase pieces of the programmable FIR channels can be boosted by an immediate mapping from the semi least EDBNS. The multiplexing cost can be further reduced by merging double base terms. In this, power is reduced by using modified booth encoding algorithm. Partial products generation stage is optimized by using Radix8 modified booth encoding algorithm
Synthesis and Antimicrobial Activity of 2-(Aminoacid ester)-3-(6-methyl-2-pyridyl)-3,4-dihydro-2H-1,3,2 λ5- benzoxazaphosphinin-2-thiones
Synthesis of 2-(aminoacid ester)-3-(6-methyl-2-pyridyl)-3,4-dihydro-2H-1,3,2λ5-benzoxazaphosphinin-2-thiones (3a–j) was accomplished through a two-step process. It involves the prior preparation of 2-chloro-3-(6-methyl-2-pyridyl)-3,4-dihydro-2H-1,3,2λ5-benzoxazaphosphinin-2-thione monochloride (2) and its subsequent reaction with the aminoacid ester hydrochlorides in dry tetrahydrofuran-toluene in the presence of triethylamine at various temperatures. These compounds were characterizedby IR, 1H, 13C, 31P NMR and mass spectral data.Keywords: 2-[(6-methyl-2-pyridyl) amino] methylphenol, 1,3,2-benzoxazaphosphinin-2-thione, antimicrobial activit
Synthesis and Antimicrobial Activity of Novel 3-[1-(3-nitrophenyl)-ethyl]-1-(indole-1-yl) Substituted Aryl/alkyl-phosphinoyl/thiophosphinoyl/ selenophosphinoyl-1H-indole Derivatives
Syntheses of novel 3-[1-(3-nitrophenyl)-ethyl]-1-(indole-1-yl) substituted aryl/alkyl phosphinoyl/thiophosphinoyl/selenophosphinoyl-1H-indole derivatives were accomplished in two steps. The synthetic route involves the cyclisation of equimolar quantities of 3-[1H-3-indolyl(3-nitrophenyl)methyl]-1H-indole with dichlorophenyl phosphine/ethyldichlorophosphite in the presence of triethylamine in dry acetonitrile at room temperature. These compounds were further converted to the corresponding oxides, sulphides and selenides by reacting them with hydrogen peroxide, sulphur and selenium, respectively. The structures of the novel products were established by elemental analyses, IR, 1H, 13C and 31P NMR and mass spectroscopy. They were screened for antibacterial and antifungal activity against Staphylococcus aureus/Klebsiella pneumoniae and Pellicularia solmanicolor/Macrophomina phaseolina, respectively.Keywords: Bisindolylalkanes, alkyl/aryl phosphorodichloridates, antimicrobial activit
Synthesis, spectral characterization and bioactivity evaluation of sulfonamide derivatives of p-nitrobenzene sulfonylchloride
1375-1383A simple and convenient method for the synthesis of biologically active sulfonamide derivatives of p-nitrobenzene sulfonylchloride has been achieved. All the title compounds have been characterized by spectral and elemental analysis. They have been further screened in vitro for their antibacterial and antifungal activities. All the compounds show good to moderate activity against both bacteria and fungi when compared with standard bactericide, Streptomycin and fungicide, Nystatin
Effect of surgical experience and spine subspecialty on the reliability of the {AO} Spine Upper Cervical Injury Classification System
OBJECTIVE
The objective of this paper was to determine the interobserver reliability and intraobserver reproducibility of the AO Spine Upper Cervical Injury Classification System based on surgeon experience (< 5 years, 5–10 years, 10–20 years, and > 20 years) and surgical subspecialty (orthopedic spine surgery, neurosurgery, and "other" surgery).
METHODS
A total of 11,601 assessments of upper cervical spine injuries were evaluated based on the AO Spine Upper Cervical Injury Classification System. Reliability and reproducibility scores were obtained twice, with a 3-week time interval. Descriptive statistics were utilized to examine the percentage of accurately classified injuries, and Pearson’s chi-square or Fisher’s exact test was used to screen for potentially relevant differences between study participants. Kappa coefficients (κ) determined the interobserver reliability and intraobserver reproducibility.
RESULTS
The intraobserver reproducibility was substantial for surgeon experience level (< 5 years: 0.74 vs 5–10 years: 0.69 vs 10–20 years: 0.69 vs > 20 years: 0.70) and surgical subspecialty (orthopedic spine: 0.71 vs neurosurgery: 0.69 vs other: 0.68). Furthermore, the interobserver reliability was substantial for all surgical experience groups on assessment 1 (< 5 years: 0.67 vs 5–10 years: 0.62 vs 10–20 years: 0.61 vs > 20 years: 0.62), and only surgeons with > 20 years of experience did not have substantial reliability on assessment 2 (< 5 years: 0.62 vs 5–10 years: 0.61 vs 10–20 years: 0.61 vs > 20 years: 0.59). Orthopedic spine surgeons and neurosurgeons had substantial intraobserver reproducibility on both assessment 1 (0.64 vs 0.63) and assessment 2 (0.62 vs 0.63), while other surgeons had moderate reliability on assessment 1 (0.43) and fair reliability on assessment 2 (0.36).
CONCLUSIONS
The international reliability and reproducibility scores for the AO Spine Upper Cervical Injury Classification System demonstrated substantial intraobserver reproducibility and interobserver reliability regardless of surgical experience and spine subspecialty. These results support the global application of this classification system
A Robust Data Hiding Scheme In Audio Signal Based On Double Density Dual Tree Discrete Wavelet Transform
ABSTRACT: The outline of this paper is that, we plot a twofold tree twofold thickness discrete wavelet transform (dwt), given the first channel bank.. The procured channels are then refined by nonlinear streamlining, such that they satisfy flawless changing commitments and the following sets of wavelets have the analyticity property. We show two instances of arrange that are through and through preferable over those got with a past method. We demonstrate the power of the shrouded watermark for added substance clamor, Mp3 squeezing, re-quantization, sifting, editing and testing. The correlation examination demonstrates that our system has preferred execution over watermarking plans reported as of late
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Multivariate analysis of trace elemental data obtained from blood serum of breast cancer patients using SRXRF
Synchrotron radiation based X-ray fluorescence (SRXRF) technique was utilized for the determination of serum elemental profile in breast cancer patients group and healthy subjects group. The SRXRF experiments were performed on microprobe beamline-16, Indus-2 synchrotron radiation source at Raja Ramanna Centre for Advanced Technology (RRCAT), Indore, India. The accuracy and reliability of the experimental method were validated by using International Atomic Energy Agency (IAEA) reference material-animal blood (A-13). Sixteen elements were identified and their concentrations were measured in the serum of the two studied groups. The analysis of results showed significantly elevated levels of Fe (p < 0.000005), Cu (p < 0.0005) and Pb (p < 0.00001) and diminished levels of Ti (p < 0.0005), Cr (p < 0.05), Mn (p < 0.000005), Co (p < 0.001), Zn (p < 0.000005), Se (p < 0.000005) and Br (p < 0.05) in the serum of breast cancer patients with respect to healthy subjects. Correlation analysis of obtained data revealed significantly different correlation patterns for some elements in the two studied groups. With the help of discrimination analysis, the differences in serum elemental profile between the two studied groups could be identified with an overall accuracy of 98.8%. It is anticipated that the pathological mechanisms affected by the perceived changes in concentrations of certain trace elements might have lead to the carcinogenic process. Keywords: SRXRF, Trace elements, Breast cancer, Correlation analysis, Discrimination analysi
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