25 research outputs found
Existence and Construction of LCD codes over Finite Fields
We demonstrate the existence of Euclidean and Hermitian LCD codes over finite
fields with various parameters. In addition, we provide a method for
constructing multiple Hermitian LCD (self orthogonal, self dual) codes from a
given Hermitian LCD (self orthogonal, self dual) code, as well as a method for
constructing Euclidean (Hermitian) LCD codes with parameters and
from a given Euclidean (Hermitian) LCD code with parameters
over finite fields. Finally, we provide some findings on -LCD codes
over finite fields
Sutika Paricharya - Post Natal Care in Ayurveda
Ayurveda give importance for the care of mother at every phase of her life specially when it comes to antenatal care and postnatal care. A postnatal period beginning immediately after the separation of placenta and extending up to 6 weeks, otherwise called as puerperium or puerperal period. Postnatal care certainly co-related with Sutika Paricharya explained in Ayurvedic classics. Garbhini and Sutika Paricharya are well described by our Ancient Ayurvedic scholars in their respective Samhitas. They have described dietary regimen, living style, and other required management for whole pregnancy and up to 6 month after delivery. In this stage mother should be educated to take care of herself and the new born baby. This period is of happiness and contentment, on one hand and physical and mental fatigue due to delivery, on the other hand, she become weak or emaciated after loss of blood and body fluid during delivery. Garbhini is much prone to the disease due to aggravation of Doshas. This further may be aggravated during delivery and puerperium due to loss of blood and other important Dhatus of body. Therefore she needs special and proper care during pregnancy as well as during puerperium. The regimen that helps the woman to regain her lost vitality and helps her body to revert back to prepregnant state is called Sutika Paricharya, as during this period she restores her health and strength
Certified Zeroth-order Black-Box Defense with Robust UNet Denoiser
Certified defense methods against adversarial perturbations have been
recently investigated in the black-box setting with a zeroth-order (ZO)
perspective. However, these methods suffer from high model variance with low
performance on high-dimensional datasets due to the ineffective design of the
denoiser and are limited in their utilization of ZO techniques. To this end, we
propose a certified ZO preprocessing technique for removing adversarial
perturbations from the attacked image in the black-box setting using only model
queries. We propose a robust UNet denoiser (RDUNet) that ensures the robustness
of black-box models trained on high-dimensional datasets. We propose a novel
black-box denoised smoothing (DS) defense mechanism, ZO-RUDS, by prepending our
RDUNet to the black-box model, ensuring black-box defense. We further propose
ZO-AE-RUDS in which RDUNet followed by autoencoder (AE) is prepended to the
black-box model. We perform extensive experiments on four classification
datasets, CIFAR-10, CIFAR-10, Tiny Imagenet, STL-10, and the MNIST dataset for
image reconstruction tasks. Our proposed defense methods ZO-RUDS and ZO-AE-RUDS
beat SOTA with a huge margin of and , for low dimensional
(CIFAR-10) and with a margin of and for high-dimensional
(STL-10) datasets, respectively
Cathodic Protection of Corroded Pre-stressing Tendon by CFRP Sheets
Mdash Reinforced concrete is one of the most commonly used construction materials in civil engineering but its durability problems have been obsessing people. The worst of these problems is caused by corrosion of steel in concrete which includes early deterioration of concrete infrastructures.nbspCathodic Protection is a reduction/elimination of corrosion by making the material a cathode by impressing a DC current. A new development in repair and rehabilitation of R.C structures is the use of carbon fibre reinforced polymers (CFRP) which provide a barrier layer that is expected to impede further corrosion of steel and prevents dislodging of concrete cover.nbspThe present paper describes the protection of the strand achieved by using surface bonded carbon FRP. The electrically conductive carbon fibre is used as anode while the pre-stressing tendon is used as cathode in the present active protection.nbspSpecimens were exposed to highly corrosive environment for specified time. It is observed that the active protection technique is very effective in retarding the corrosion of strand
Wind Pressure Distribution on Domical Roofs
Present paper describes the details of the experimental study carried out on the models of low-rise buildings with domical roofs. Wind pressure measurements are made on rigid models by placing them in an open circuit boundary layer wind tunnel. The study includes square and rectangular plan buildings with one and two domes respectively. The experimental results of pressure measurements are reported in the form of contours of mean wind pressure coefficients on the surfaces of domes. Results presented in the paper are of great use for the structural designers while designing buildings with domical roofs. The experts responsible for revising wind-loading codes from time to time can also use these values
Genetic variability and divergence analyses in Jatropha curcas based on floral and yield traits
Genetic variability of 80 accessions of Jatropha curcas showed that oil
content varied between 20.8-36.1% (X=26.2±0.38). Thirty seven accessions
showed seed weight/plant above average mean value (180.2g) and 26 accessions
showed oil content above average mean (26.2%). The hierarchical clustering
grouped all the accessions into 4 clusters. Clustering showed that majority
of accessions i.e. 56 (70%) were genetically close to each other and grouped
in two clusters. The maximum intra cluster distance was recorded in cluster
IV (30.15). The inter cluster distance varied from 47.59 (between cluster I
and cluster II) to 211.27 (between cluster III and cluster I). The cluster
III showed maximum genetic distance with cluster I, followed by cluster IV
and cluster II suggesting comparatively wider genetic diversity among them.
The Principal Component Analysis (PCA) showed that first four principal
components (PCs) accounted for more than 93% of the total variation. The
first principal components accounted for 42.5% of the total variation mainly
due to seed length, seed width, seed weight/plant and number of seeds/plant
which had maximum and positive weight on this component. Oil content had
negative weight on PC1. Thus, PC1 related to the accessions with thick seeds,
moderate to high seed yielder with low oil content
Not Available
Not Availablepost green revolution agriculture is based on generous
application of fertilizers and high-yielding genotypes that
are suited for such high input regimes. Cereals, like maize
(Zea mays L.) are capable of utilizing less than 20% of
the applied inorganic phosphate (Pi) - a non-renewable fertilizer
resource. A greater understanding of the molecular
mechanisms underlying the acquisition, transportation and
utilization of Pi may lead to engineering genotypes with
high phosphorus use efficiency. In this study, we carried
out functional domain similarity analysis, promoter analysis
and comparative transcriptional expression profiling of
12 selected Pi responsive genes in the Pi stress tolerant
maize inbred line HKI-163 under sufficient and deficient
Pi conditions. Pi starvation led to significant increase in
root length; marked proliferation of root hairs and lesser
number of crown roots. Eleven genes were significantly
up or down regulated in Pi deficient condition. The putative
acid phosphatase, ZmACP5 expression was up regulated
by 162.81 and 74.40 fold in root and leaf tissues,
respectively. The RNase, ZmRNS1 showed 115 fold up
regulation in roots under Pi deprivation. Among the two
putative high affinity Pi transporters ZmPht1;4 was found
specific to root, whereas ZmPht2 was found to be up regulated
in both root and leaf tissues. The genes involved in Pi homeostasis pathway (ZmSIZ1, SPX1 and Pho2) were
up regulated in root and leaf. In light of the expression
profiling of selected regulatory genes, an updated model
of transcriptional regulation under Pi starvation in maize
has been presented.Not Availabl
Study of efficacy and longevity of immune response to third and fourth doses of COVID-19 vaccines in patients with cancer: A single arm clinical trial
Background: Cancer patients show increased morbidity with COVID-19 and need effective immunization strategies. Many healthcare regulatory agencies recommend administering ‘booster’ doses of COVID-19 vaccines beyond the standard two-dose series, for this group of patients. Therefore, studying the efficacy of these additional vaccine doses against SARS-CoV-2 and variants of concern is of utmost importance in this immunocompromised patient population
Methods: We conducted a prospective single arm clinical trial enrolling patients with cancer that had received two doses of mRNA or one dose of AD26.CoV2.S vaccine and administered a third dose of mRNA vaccine. We further enrolled patients that had no or low responses to three mRNA COVID vaccines and assessed the efficacy of a fourth dose of mRNA vaccine. Efficacy was assessed by changes in anti-spike antibody, T-cell activity, and neutralization activity, which were again assessed at baseline and 4 weeks.
Results: We demonstrate that a third dose of COVID-19 vaccine leads to seroconversion in 57% of patients that were seronegative after primary vaccination series. The immune response is durable as assessed by anti-SARS-CoV-2 (anti-S) antibody titers, T-cell activity, and neutralization activity against wild-type (WT) SARS-CoV2 and BA1.1.529 at 6 months of follow-up. A subset of severely immunocompromised hematologic malignancy patients that were unable to mount an adequate immune response (titer <1000 AU/mL) after the third dose and were treated with a fourth dose in a prospective clinical trial which led to adequate immune boost in 67% of patients. Low baseline IgM levels and CD19 counts were associated with inadequate seroconversion. Booster doses induced limited neutralization activity against the Omicron variant.
Conclusions: These results indicate that third dose of COVID vaccine induces durable immunity in cancer patients and an additional dose can further stimulate immunity in a subset of patients with inadequate response.
Funding: Leukemia Lymphoma Society, National Cancer Institute.
Clinical trial number: NCT05016622