Mitigation of vampire attacks in wireless adhoc and sensor networks during packet forwarding phase

Ad-hoc wireless networks are an exciting research direction in sensing and pervasive computing. Advance security work in this area has beenprimarily focused on denial of communication at the routing or medium access control levels. There is a common attack at routing protocol layer, i.e. resource depletion attack, which permanently disables networks by drastically draining nodes' battery power. These “Vampire” attacks are not similar to any specific protocol, but rather depend upon the properties of many popular classes of routing protocols like link state and DSR protocols. These vampire attacks are very difficult to detect, devastating and easy to carry out using as few as one Malicious insider sending only protocol compliant messages. For mitigation of these kinds of attacks, some methods are explained, including a new proof-of-concept protocol that provably bounds the damage caused by Vampires during the packet forwarding phase

Removal of hexavalent chromium Cr (VI) using activated carbon prepared from mango kernel activated with H3PO4

The present work reported the adsorption of Cr (VI) from aqueous solutions on activated carbon prepared from mango kernel, a seasonal waste from mango fruits. Kernels from dried mango fruit shells were taken out and pulverized in a micro-pulverizing mill. The powder thus obtained was activated with 40% H3PO4 and carbonized at 600 °C for 1 hour in an inert atmosphere. Physico-chemical characteristics such as elemental composition, surface area, functional groups and surface morphology of the activated carbon were analyzed using elemental analyzer, BET surface area analyzer, FTIR spectroscopy and SEM analysis respectively. Batch adsorption experiments were performed to investigate the effects of Cr (VI) concentration, carbon dose, pH, rate of agitation, time and temperature. The maximum adsorption capacity of Cr(VI) was found to be 7.8 mg g−1 at pH 2 and temperature 35 °C. The Langmuir adsorption isotherm best represented the equilibrium data and a pseudo-second order relation represented the adsorption kinetics

Accidental Corrosive Acid Intoxication - a Case Report

Background: Acute poisonings with corrosive substances cause serious chemical injuries to upper gastrointestinal tract, the most common site being the oesophagus and the stomach. The degree and extent of damage depends on several factors like the type of substance, the morphologic form of the agent, the quantity, and the intent. In the acute stage, perforation and necrosis may occur.  Injury to UGI tract due to ingestion of acidic corrosive substances is common in India. Acute corrosive intoxications constitute a major problem in clinical toxicology since the most commonly affected population are the young with psychic disorders, suicidal intent and alcohol addiction.Case Report: We report a fatal case of accidental corrosive acid ingestion with a brief review of literature.Conclusion: Ingestion of a corrosive substance can produce severe injury to the gastrointestinal tract and can even result in death. Stringent legislation is necessary in developing countries to curtail unrestricted access of adults to dangerous corrosive chemicals

ANTIPLAQUE EFFICACY OF GANODERMA LUCIDUM TOOTHPASTE - AN IN VITRO STUDY

Objective: The objective of the study was to evaluate the efficacy of Ganoderma lucidum toothpaste as an antiplaque agent and to compare its efficacy with herbal toothpaste and mouthwash.Methods: Pooled saliva was collected in a sterile container from the volunteers after taking the consent. Tissue culture plate with 12 (3 × 4) wells was chosen. Pooled saliva of 20 mL was added to each well using the micropipette and was kept in the incubator at 37°C for 72 h. After 72 h, saliva was removed without touching the walls or the base of the wells. Each row was treated either with slurry prepared with Ganoderma/herbal/Colgate total toothpaste or herbal/chlorhexidine mouthwash/distilled water. One row of wells was kept as a control using erythrosine dye. After 30 s, all the wells were rinsed with distilled water. Erythrosine dye was added to all the wells, kept for 30 s, and rinsed with distilled water. The tissue culture plate was kept in the ELx800MS machine (ELISA reader) which was set at 540 nm, and the readings were obtained.Results: The results showed that G. lucidum toothpaste slurry reduced plaque than herbal and chlorhexidine mouthwash. However, there was no significant difference in plaque reduction between herbal and G. lucidum toothpaste slurries.Conclusion: The present study concluded that G. lucidum had better antiplaque efficacy than herbal toothpaste, herbal mouthwash, and chlorhexidine mouthwash

The Parallel Persistent Memory Model

We consider a parallel computational model that consists of $P$ processors, each with a fast local ephemeral memory of limited size, and sharing a large persistent memory. The model allows for each processor to fault with bounded probability, and possibly restart. On faulting all processor state and local ephemeral memory are lost, but the persistent memory remains. This model is motivated by upcoming non-volatile memories that are as fast as existing random access memory, are accessible at the granularity of cache lines, and have the capability of surviving power outages. It is further motivated by the observation that in large parallel systems, failure of processors and their caches is not unusual. Within the model we develop a framework for developing locality efficient parallel algorithms that are resilient to failures. There are several challenges, including the need to recover from failures, the desire to do this in an asynchronous setting (i.e., not blocking other processors when one fails), and the need for synchronization primitives that are robust to failures. We describe approaches to solve these challenges based on breaking computations into what we call capsules, which have certain properties, and developing a work-stealing scheduler that functions properly within the context of failures. The scheduler guarantees a time bound of $O(W/P_A + D(P/P_A) \lceil\log_{1/f} W\rceil)$ in expectation, where $W$ and $D$ are the work and depth of the computation (in the absence of failures), $P_A$ is the average number of processors available during the computation, and $f \le 1/2$ is the probability that a capsule fails. Within the model and using the proposed methods, we develop efficient algorithms for parallel sorting and other primitives.Comment: This paper is the full version of a paper at SPAA 2018 with the same nam

Implementing Neural Fuzzy Rough Set and Artificial Neural Network for Predicting PCOS

Polycystic ovarian syndrome (or polycystic ovary syndrome – PCOS) is a multifarious form in which a woman’s ovaries are normally larger than standard. The term ‘Polycystic’ defines that the ovaries comprise of numerous cysts or follicles to facilitate hardly ever nurture towards ripeness or generate eggs accomplished of being fertilized. One third of women could contain polycystic ovaries observed on an ultrasound, however it does not all have PCOS. PCOS is comparatively universal, especially for sterile women. It concerns about 12 to 18 per cent of women of reproductive age (between late adolescence and menopause). In approximate 70 per cent of this kind of cases remain undiagnosed. In our previous researches, we have proposed a new feature selection technique and hybrid approach and in this present investigation, we implement these proposed algorithms to forecast the PCOS disease among women. In addition to above analysis, we evaluate the effect of the proposed algorithms with other existing methods

MEDIA MIX MODELING COMPARISON OF INTERACTION MODEL TO SIMPLE LOG-LINEAR MODEL

The objective of current study is to compare a new model for media mix problem with popular model named as simple log linear model. A modified approach proposed to improve the results of media mix model from simple log linear method includes the simultaneous effect of different media variables on sales. The combined effect caused by various media variables shows a synergy in the curve for sales and hence considering it makes the model much effective and accurate

Platelet indices and their correlation with HbA1c and association with microvascular complications in type-2 diabetes mellitus

Background: Depending on the aetiology of the DM, factors contributing to hyperglycaemia include reduced insulin secretion, decreased glucose utilization, and increased glucose production. Mean platelet volume (MPV) and platelet distribution width (PDW) are important, simple, effortless, and cost-effective tools measured by hematology analyser which assess the volume and function of platelets. Analysing the platelet parameters can act as an alarm for progression of complications of DM. Hence, we studied the platelet parameters in diabetic patients with good and poor glycaemic control and their association in microvascular complications. Methods: This study was conducted on 100 patients having diabetes mellitus. All the patients were subjected to detailed history regarding age, sex, occupation, socioeconomic status, GPE and systemic examination. Results: Out of 100 cases, 29 patients had a good glycemic control (HbA1c<7%) and 71 had poor glycemic control (HbA1c>7%). Mean FBS was 118.59±19.36 mg/dl in good control group and 158.79±29.21 mg/dl in poor control (p<0.001). Mean PPBS was 159.86±37.78 mg/dl in good control group and 235.80±53.28 mg/dl in poor control group (p<0.001). Good glycemic control group had mean MPV of 7.89±0.63 fl and poor glycemic control group had mean MPV 10.06 fl (p<0.001). Mean PDW was 12.32±1.94 in good control group and 13.81±2.25 in poor control group. Conclusions: Our study indicates that MPV and PDW are increased in diabetic patients, more so in patients with microvascular complications than in those without complications. Hence, they can be used as markers in predicting the microvascular complications in diabetes mellitus.

Fatal Dog Bite Injury – A Case Report

Background: Dog bite is one of the most common childhood accidents causing significant morbidity and mortality in pediatrics age group (1). The exposed position compounded by the short stature of children makes the face very vulnerable to dog bite or animal bite injuries. Unlike wounds inflicted by assaults and accidents, animal bite wounds are distinctive as they are puncture type deep wounds which are injected by the bite force, with inoculums of pathogenic bacteria from the saliva of the attacking dog.Case Report: A case of a 2 month-old child who had succumbed to multiple facial and head bite injuries is presented. At autopsy, multiple bite wounds were noted on the upper part of body like face, head, chest and abdomen. Distinctive bite marks diagnostic of canine dentition were present, most prominently on the head, face and chest. Death was due to cranio-cerebral damage.Conclusion: Public health notification should occur for all dog bites. This would facilitate the development of regional dog bite registries with information on incidence and dogs at risk, which in turn could guide policies such as leash laws and licensing