Is Stack Overflow Overflowing With Questions and Tags

Programming question and answer (Q & A) websites, such as Quora, Stack Overflow, and Yahoo! Answer etc. helps us to understand the programming concepts easily and quickly in a way that has been tested and applied by many software developers. Stack Overflow is one of the most frequently used programming Q\&A website where the questions and answers posted are presently analyzed manually, which requires a huge amount of time and resource. To save the effort, we present a topic modeling based technique to analyze the words of the original texts to discover the themes that run through them. We also propose a method to automate the process of reviewing the quality of questions on Stack Overflow dataset in order to avoid ballooning the stack overflow with insignificant questions. The proposed method also recommends the appropriate tags for the new post, which averts the creation of unnecessary tags on Stack Overflow.Comment: 11 pages, 7 figures, 3 tables Presented at Third International Symposium on Women in Computing and Informatics (WCI-2015

Bifurcation in cell cycle dynamics regulated by p53

We study the regulating mechanism of p53 on the properties of cell cycle dynamics in the light of the proposed model of interacting p53 and cell cycle networks via p53. Irradiation (IR) introduce to p53 compel p53 dynamics to suffer different phases, namely oscillating and oscillation death (stabilized) phases. The IR induced p53 dynamics undergo collapse of oscillation with collapse time \Delta t which depends on IR strength. The stress p53 via IR drive cell cycle molecular species MPF and cyclin dynamics to different states, namely, oscillation death, oscillations of periods, chaotic and sustain oscillation in their bifurcation diagram. We predict that there could be a critical \Delta t_c induced by p53 via IR_c, where, if \Delta t < \Delta t_c the cell cycle may come back to normal state, otherwise it will go to cell cycle arrest (apoptosis)

Survey of Object Detection Methods in Camouflaged Image

Camouflage is an attempt to conceal the signature of a target object into the background image. Camouflage detection methods or Decamouflaging method is basically used to detect foreground object hidden in the background image. In this research paper authors presented survey of camouflage detection methods for different applications and areas

Effect of Pruning Intensity on Leaf Tissue Micronutrient Status in Three Mango (Mangifera indica L.) Cultivars under High Density Planting

An experiment was conducted to study the effect of pruning on leaf micro nutrient (Cu, Zn, Fe and Mn) status in nonfloral and floral shoots of three mango cultivars ('Amrapali', 'Mallika' and 'Dashehari') under high density planting during 2005-2007. All the three cultivars differed significantly in Cu, Zn, Fe and Mn content in leaves of non- floral as well as floral shoots. Pruning showed marked influence only on Cu and Zn content in the leaves of non- floral and floral shoots. Leaf nutrient status in terms of Fe and Mn also varied in cultivars irrespective of pruning intensity, and pruning did not have significant impact on Fe and Mn status in leaf tissue. Non-floral shoots had greater concentration of Cu and Zn than floral shoots in both the years of experiment. Highest Cu, Fe and Mn content was recorded in 'Mallika' mango, while, Zn content was highest in 'Dashehari' mango. Severe pruning (90 cm from apex) improved Cu and Zn content in leaves of non-floral shoots as well as floral shoots. The lowest amount of Cu and Mn was noted in 'Dashehari' leaves, while, 'Amrapali' had the lowest Zn and Fe content in both non-floral and floral shoots. Severely pruned 'Mallika' trees registered the highest amount of Cu, while lightly pruned 'Dashehari' trees had highest Zn content in their floral and non-floral leaves. Moderate pruning in' Mallika' enhanced Mn content in leave of non-floral and floral shoots. No-pruning in 'Dashehari' trees led to lower Cu content but Zn content was the least in lightly pruned 'Amrapali' trees. Severe pruning in 'Dashehari' trees drastically reduced Mn content. Thus, severe pruning in old mango trees may be advisable to improve micronutrient status in floral and non floral shoots

Development of Corundum/Mullite Composites from fly Ash & Alumina Mix by Reaction Sintering

Composites of corundum/mullite have been developed from mixtures of fly ash and alumina by reaction sintering at 16000C. The physico-mechanical properties of the composites have been evaluated. The microstructural evolution of the composites was investigated by scanning electron microscope(SEM). The spherical corundum crystals were found reinforced with randomly oriented acicular mullite matrix leading to dense microstructure and consequently improved mechanical, wear resistant and refractory properties. The reasons of the improved properties have been discussed in the paper

Quantum-Inspired Classical Algorithms for Singular Value Transformation

A recent breakthrough by Tang (STOC 2019) showed how to "dequantize" the quantum algorithm for recommendation systems by Kerenidis and Prakash (ITCS 2017). The resulting algorithm, classical but "quantum-inspired", efficiently computes a low-rank approximation of the users' preference matrix. Subsequent works have shown how to construct efficient quantum-inspired algorithms for approximating the pseudo-inverse of a low-rank matrix as well, which can be used to (approximately) solve low-rank linear systems of equations. In the present paper, we pursue this line of research and develop quantum-inspired algorithms for a large class of matrix transformations that are defined via the singular value decomposition of the matrix. In particular, we obtain classical algorithms with complexity polynomially related (in most parameters) to the complexity of the best quantum algorithms for singular value transformation recently developed by Chakraborty, Gily\'{e}n and Jeffery (ICALP 2019) and Gily\'{e}n, Su, Low and Wiebe (STOC19).Comment: 19 page

Functionality of C-Reactive Protein for Atheroprotection

C-reactive protein (CRP) is a pentameric molecule made up of identical monomers. CRP can be seen in three different forms: native pentameric CRP (native CRP), non-native pentameric CRP (nonnative CRP), and monomeric CRP (mCRP). Both native and nonnative CRP execute ligand-recognition functions for host defense. The fate of any pentameric CRP after binding to a ligand is dissociation into ligand-bound mCRP. If ligand-bound mCRP is proinflammatory, like free mCRP has been shown to be in vitro, then mCRP along with the bound ligand must be cleared from the site of inflammation. Once pentameric CRP is bound to atherogenic low-density lipoprotein (LDL), it reduces both formation of foam cells and proinflammatory effects of atherogenic LDL. A CRP mutant, that is non-native CRP, which readily binds to atherogenic LDL, has been found to be atheroprotective in a murine model of atherosclerosis. Thus, unlike statins, a drug that can lower only cholesterol levels but not CRP levels should be developed. Since non-native CRP has been shown to bind to all kinds of malformed proteins in general, it is possible that non-native CRP would be protective against all inflammatory states in which host proteins become pathogenic. If it is proven through experimentation employing transgenic mice that non-native CRP is beneficial for the host, then using a small-molecule compound to target CRP with the goal of changing the conformation of endogenous native CRP would be preferred over using recombinant non-native CRP as a biologic to treat diseases caused by pathogenic proteins such as oxidized LDL