132 research outputs found
Gender Issues: Proposing New Paradigms
Gender diffeences transgressing beyond the biological, have been amply evidenced in the work scenario. Corporates are making endeavours to change work environment and policies so as to make the corporate culture harmonious for both men and women. Our attempt in this paper is to identify gender issues, real or imagined, and suggest recommendations. We also propose to analyze, in the paper, the inherent truth, if any, in these differences. Are they only figments of the imagination, exist in the perception of the employees, or are they a reality? Our study is the first of its kind in India. It is aimed at identifying the issues that both men and women face in a professional environment, and to suggest recommendations which the policymakers can use. We conducted the study in 3 phases consisting of pilot study, focus group discussions and questionnaire survey. Each phase helped in building on the topic and making the study more robust. On the basis of the findings, a few recommendations have been made which will be a value-add to organizations for implementing changes in policies, and designing communcation campaigns and forums where inhibiting and enabling thoughts and expressions can be freely discussed. Additionally, we have been able to collate some of the best practices followed in the IT and ITeS Sector which will be an important resource for oganizations to build on.
The Zeta () Notation for Complex Asymptotes
Time Complexity is an important metric to compare algorithms based on their
cardinality. The commonly used, trivial notations to qualify the same are the
Big-Oh, Big-Omega, Big-Theta, Small-Oh, and Small-Omega Notations. All of them,
consider time a part of the real entity, i.e., Time coincides with the
horizontal axis in the argand plane. But what if the Time rather than
completely coinciding with the real axis of the argand plane, makes some angle
with it? We are trying to focus on the case when the Time Complexity will have
both real and imaginary components. For Instance, if $T\left(n\right)=\
n\log{n}T\left(n\right)=\
n\log{n}+i\cdot n^2i=\sqrt[2]{-1}\zeta$), which would qualify
Time in both the Real and Imaginary Axis, as per the Argand Plane
A Review on Optimality Investigation Strategies for the Balanced Assignment Problem
Mathematical Selection is a method in which we select a particular choice
from a set of such. It have always been an interesting field of study for
mathematicians. Accordingly, Combinatorial Optimization is a sub field of this
domain of Mathematical Selection, where we generally, deal with problems
subjecting to Operation Research, Artificial Intelligence and many more
promising domains. In a broader sense, an optimization problem entails
maximising or minimising a real function by systematically selecting input
values from within an allowed set and computing the function's value. A broad
region of applied mathematics is the generalisation of metaheuristic theory and
methods to other formulations. More broadly, optimization entails determining
the finest virtues of some fitness function, offered a fixed space, which may
include a variety of distinct types of decision variables and contexts. In this
work, we will be working on the famous Balanced Assignment Problem, and will
propose a comparative analysis on the Complexity Metrics of Computational Time
for different Notions of solving the Balanced Assignment Problem
Unified View of Damage leaves Planimetry & Analysis Using Digital Images Processing Techniques
The detection of leaf diseases in plants generally involves visual
observation of patterns appearing on the leaf surface. However, there are many
diseases that are distinguished based on very subtle changes in these visually
observable patterns. This paper attempts to identify plant leaf diseases using
image processing techniques. The focus of this study is on the detection of
citrus leaf canker disease. Canker is a bacterial infection of leaves. Symptoms
of citrus cankers include brown spots on the leaves, often with a watery or
oily appearance. The spots (called lesions in botany) are usually yellow. It is
surrounded by a halo of the leaves and is found on both the top and bottom of
the leaf. This paper describes various methods that have been used to detect
citrus leaf canker disease. The methods used are histogram comparison and
k-means clustering. Using these methods, citrus canker development was detected
based on histograms generated based on leaf patterns. The results thus obtained
can be used, after consultation with experts in the field of agriculture, to
identify suitable treatments for the processes used
Generation and characterization of human monoclonal single chain variable fragments (scFvs) against envelope third variable region (V3) of HIV-1 clade C
Production and expression of recombinant anti-V3 scFvs from HIV-1 clade C infected Indian patient
Inhibition of preS1-hepatocyte interaction by an array of recombinant human antibodies from naturally recovered individuals
Neutralizing monoclonal antibodies are being found to be increasingly useful in viral infections. In hepatitis B infection, antibodies are proven to be useful for passive prophylaxis. The preS1 region (21–47a.a.) of HBV contains the viral hepatocyte-binding domain crucial for its attachment and infection of hepatocytes. Antibodies against this region are neutralizing and are best suited for immune-based neutralization of HBV, especially in view of their not recognizing decoy particles. Anti-preS1 (21–47a.a.) antibodies are present in serum of spontaneously recovered individuals. We generated a phage-displayed scFv library using circulating lymphocytes from these individuals and selected four preS1-peptide specific scFvs with markedly distinct sequences from this library. All the antibodies recognized the blood-derived and recombinant preS1 containing antigens. Each scFv showed a discrete binding signature, interacting with different amino acids within the preS1-peptide region. Ability to prevent binding of the preS1 protein (N-terminus 60a.a.) to HepG2 cells stably expressing hNTCP (HepG2-hNTCP-C4 cells), the HBV receptor on human hepatocytes was taken as a surrogate marker for neutralizing capacity. These antibodies inhibited preS1-hepatocyte interaction individually and even better in combination. Such a combination of potentially neutralizing recombinant antibodies with defined specificities could be used for preventing/managing HBV infections, including those by possible escape mutants
Efficient deletion of microRNAs using CRISPR/Cas9 with dual guide RNAs
MicroRNAs (miRNAs) are short non-coding RNAs that play crucial roles in gene regulation, exerting post-transcriptional silencing, thereby influencing cellular function, development, and disease. Traditional loss-of-function methods for studying miRNA functions, such as miRNA inhibitors and sponges, present limitations in terms of specificity, transient effects, and off-target effects. Similarly, CRISPR/Cas9-based editing of miRNAs using single guide RNAs (sgRNAs) also has limitations in terms of design space for generating effective gRNAs. In this study, we introduce a novel approach that utilizes CRISPR/Cas9 with dual guide RNAs (dgRNAs) for the rapid and efficient generation of short deletions within miRNA genomic regions. Through the expression of dgRNAs through single-copy lentiviral integration, this approach achieves over a 90% downregulation of targeted miRNAs within a week. We conducted a comprehensive analysis of various parameters influencing efficient deletion formation. In addition, we employed doxycycline (Dox)-inducible expression of Cas9 from the AAVS1 locus, enabling homogeneous, temporal, and stage-specific editing during cellular differentiation. Compared to miRNA inhibitory methods, the dgRNA-based approach offers higher specificity, allowing for the deletion of individual miRNAs with similar seed sequences, without affecting other miRNAs. Due to the increased design space, the dgRNA-based approach provides greater flexibility in gRNA design compared to the sgRNA-based approach. We successfully applied this approach in two human cell lines, demonstrating its applicability for studying the mechanisms of human erythropoiesis and pluripotent stem cell (iPSC) biology and differentiation. Efficient deletion of miR-451 and miR-144 resulted in blockage of erythroid differentiation, and the deletion of miR-23a and miR-27a significantly affected iPSC survival. We have validated the highly efficient deletion of genomic regions by editing protein-coding genes, resulting in a significant impact on protein expression. This protocol has the potential to be extended to delete multiple miRNAs within miRNA clusters, allowing for future investigations into the cooperative effects of the cluster members on cellular functions. The protocol utilizing dgRNAs for miRNA deletion can be employed to generate efficient pooled libraries for high-throughput comprehensive analysis of miRNAs involved in different biological processes
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