A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method

In this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtained from these multi-band frequency responses by using low order frequency response masking filters and their corresponding ICDM output frequency responses. We show that the proposed FB is a very low complexity alternative to the other FBs in literature, especially the widely used discrete Fourier transform based FB (DFTFB) and the CDM based FB (CDFB). The proposed FB can have a higher number of subbands with twice the center frequency resolution when compared with the CDFB and DFTFB. Design example and implementation results show that our FB achieves 86.59% and 58.84% reductions in resource utilizations and 76.95% and 47.09% reductions in power consumptions when compared with the DFTFB and CDFB respectively

A prospective study of hypothyroidism during pregnant attending tertiary care hospital in south India

Background: Disorder of thyroid function is common during pregnancy and hypothyroidism is more common then hyperthyroidism affecting 3–5% of all pregnant women. Maternal hypothyroidism is associated with both maternal adverse effects like preeclampsia, ecclampsia, pregnancy induced hypertension and gestational diabetes mellitus and foetus complication like low birth weight, pre term birth, neurological deformities and abnormal presentation.Methods: In present study 120 patients with overt and subclinical hypothyroidism were included in this study. Detailed histories of patients were taken and clinical examination was done and data was collected in a predesigned Performa. We used standard diagnostic criteria for diagnosis of overt and subclinical hypothyroidism.Results: Pregnancy induced hypertension was found in 10% patient, Chronic hypertension was present in 1.6% patients, abortion in second trimester 1.6% patients, incomplete abortion in 4.18% patients. Missed abortion was present in 2.5% patients.Conclusions: Hypothyroidism during pregnancy is more common in primi. Most common age group was third decade and was commonly detected before 10 weeks of gestation. Pregnancy induced hypertension, oligohydramnios and preterm delivery was more common than abortion in second trimester and missed abortion

Study of the serum uric acid level as a prognostic indicator in hypertensive disorders of pregnancy

Background: Abnormal uric acid levels in patients with preeclampsia and eclampsia affect both maternal and fetal outcome negatively. This study was done to know the alterations in these serum levels in comparison to normal pregnancy and also among various hypertensive disorders of pregnancies.Methods: Maternal serum uric acid levels were compared among cases and controls in relation to disease severity, mode of delivery, maternal outcome.Results: In group A (cases), 10 patients had raised uric acid levels, of which 5 were severe preeclampsia, 3 were eclampsia and 2 cases of chronic hypertension superimposed preeclampsia. P value is 0.001 (highly significant). Also serum uric acid is significantly elevated in hypertensive disorders of pregnancy compared with controls with a P value of 0.001.Conclusions: Significant correlation was observed between maternal serum uric acid, disease severity and maternal outcome. Our study concludes that uric acid can be considered as a sensitive prognostic indicator of severity in hypertensive disorders of pregnancy

Cooper pair tunneling in junctions of singlet quantum Hall states and superconductors

We propose tunnel junctions of a Hall bar and a superconducting lead, for observing Cooper-pair tunneling into singlet fractional quantum Hall edge states. These tunnel junctions provide a natural means of extracting precise information of the spin polarization and the filling factor of the state. The low energy regime of one of the set-ups is governed by a novel quantum entangled fixed point.Comment: 4 pages, 1 figure (3 subfigures); new title and abstract; new discussion of the quantum entangled fixed point; final manuscript as publishe

Isolation, Screening and Production of Biosurfactant by Bacillus clausii 5B

Primary somatic embryos induced from the callus tissues revealed the presence of CSSV between 12-24 wks by PCR/capillary electrophoresis while PCR/agarose electrophoresis failed to detect the virus. Different carbon and nitrogen sources were evaluated for their effect on biosurfactant production. Maximum biosurfactant synthesis (2.11 g/L) was observed at 96 hours when the cells were grown on minimal medium containing 1 % (w/v) glucose as carbon source. Among nitrogen sources tested, ammonium chloride showed maximum biosurfactant production of 2.41 g/L. The biosurfactant produced by the bacterial isolate reduced the surface tension of the cell free broth from 53.56 mN/m to 29.48 mN/m. Compositional analysis of the biosurfactant revealed that it was of lipopetide type, composed of high percentage of lipid (~56 %, w/w) and protein (~39 %, w/w) content

Standardization of container type, substrate and nutrition for potted plant production of China aster [Callistephus chinensis (L.) Ness.] var. Arka Archana

A study was conducted at the ICAR-Indian Institute of Horticultural Research, Hesaraghatta, Bengaluru for three consecutive seasons during 2019-20, to standardize the container type, substrate combination and nutrition for potted plant production of China aster var. Arka Archana. The treatments comprised of two type of containers (plastic and coir), three substrates {Red soil + FYM + Sand (1:1:1 v/v), Arka Fermented cocopeat (AFC), AFC + Vermicompost (1:1 v/v)} and four nutrition concentration (160:30:180 ppm N:P: K, 128:24:144 ppm N:P: K, 96:18:108 ppm N:P: K and Jeevamrutha @ 3%) laid out in factorial completely randomized design with three replications. Plant height at flowering (33.12 cm), number of primary branches (12.4), plant spread (536.64 cm2), number of flowers/plant (26.47), flower size (5.26 cm) and uptake of major, secondary and minor nutrients were maximum in the plants grown in 6" plastic pots using the substrate combination of soil +sand +FYM (1:1:1 v/v/v) along with the weekly application of nutrient solution of 96:18:108 ppm NPK/plant. This production protocol resulted in a dense canopy and highly floriferous potted plants. The benefit cost ratio of potted China aster production was 1.70. This technology can be adopted by the nurserymen for large-scale commercial potted plant production

Revisiting the Hanbury Brown-Twiss set-up for fractional statistics

The Hanbury Brown-Twiss experiment has proved to be an effective means of probing statistics of particles. Here, in a set-up involving edge-state quasiparticles in a fractional quantum Hall system, we show that a variant of the experiment composed of two sources and two sinks can be used to unearth fractional statistics. We find a clear cut signature of the statistics in the equal-time current-current correlation function for quasiparticle currents emerging from the two sources and collected at the sinks.Comment: 4 pages, 3 figure

Correlators and fractional statistics in the quantum Hall bulk

We derive single-particle and two-particle correlators of anyons in the presence of a magnetic field in the lowest Landau level. We show that the two-particle correlator exhibits signatures of fractional statistics which can distinguish anyons from their fermionic and bosonic counterparts. These signatures include the zeroes of the two-particle correlator and its exclusion behavior. We find that the single-particle correlator in finite geometries carries valuable information relevant to experiments in which quasiparticles on the edge of a quantum Hall system tunnel through its bulk.Comment: 4 pages, 3 figures, RevTe

Assessment of Neuropharmacological Profile of Ethanolic Extract of Lawsonia Inermis Flowers

On preliminary basis neuropharmacological profile of ethanolic extract of flowers of Lawsonia inermis was carried out. For assessing the activity of flowers on central nervous system locomotor activity using actophotometer, muscle relaxant activity using rotarod apparatus, pentobarbital-induced hypnosis and anticonvulsant activity by maximal electroshock test was performed.  Ethanolic extract of flowers of Lawsonia inermis decreased the motor activity by 48.63 % and showed 49.03% noteworthy muscle relaxation along with 127.73% potentiation of pentobarbital-induced sleeping time and 66.67% decreased the duration of tonic hind leg extension of seizures activity.  The results conclude that the extract of flowers of Lawsonia inermis has significant central nervous system depressant activity. Further investigations are, however, necessary to explore mechanism(s) of action involved in these pharmacological activities

Quenching across quantum critical points in periodic systems: dependence of scaling laws on periodicity

We study the quenching dynamics of a many-body system in one dimension described by a Hamiltonian that has spatial periodicity. Specifically, we consider a spin-1/2 chain with equal xx and yy couplings and subject to a periodically varying magnetic field in the z direction or, equivalently, a tight-binding model of spinless fermions with a periodic local chemical potential, having period 2q, where q is a natural number. For a linear quench of the magnetic field strength (or potential strength) at rate 1/\tau across a quantum critical point, we find that the density of defects thereby produced scales as 1/\tau^{q/(q+1)}, deviating from the 1/\sqrt{\tau} scaling that is ubiquitous to a range of systems. We analyze this behavior by mapping the low-energy physics of the system to a set of fermionic two-level systems labeled by the lattice momentum k undergoing a non-linear quench as well as by performing numerical simulations. We also find that if the magnetic field is a superposition of different periods, the power law depends only on the smallest period for very large values of \tau although it may exhibit a cross-over at intermediate values of \tau. Finally, for the case where a zz coupling is also present in the spin chain, or equivalently, where interactions are present in the fermionic system, we argue that the power associated with the scaling law depends on a combination of q and interaction strength.Comment: 13 pages including 11 figure