Concept Based Semantic Search Engine

In the current day and age, search engines are the most relied on and critical ways to find out information on the World Wide Web (W3). With the ushering in of Big Data, traditional search engines are becoming inept and inadequate at dishing out relevant pages. It has become increasingly difficult to locate meaningful results from the mind boggling list of returns typical of returned search queries. Keywords, often times, alone cannot capture the intended concept with high precision. These and associated issues with the current search engines call for a more powerful and holistic search engine capability. The current project presents a new approach to resolving this widely relevant problem - a concept based search engine. It is known that a collection of concepts naturally forms a polyhedron. Combinatorial topology is, thus, used to manipulate the polyhedron of concepts that are mined from W3. Based on this triangulated polyhedron, the concepts are clustered together based on primitive concepts that are geometrically, simplexes of maximal dimensions. Such clustering is different from conventional clustering since the proposed model may have overlapping. Based on such clustering, the search results can then be categorized and users allowed to select a category more apt to their needs. The results displayed are based on aforementioned categorization thereby leading to more sharply gathered and, thus, semantically related relevant information

STRENGTHENING HEAT DAMAGED REINFORCED CONCRETE BEAMS USING GLASS FIBER-REINFORCED POLYMER (GFRP) LAMINATES

A series of 21 reinforced concrete T- beams of length 1400 mm were cast using normal strength concrete. After 90 days of ageing, the beams were heated to 600°C and 900°C temperatures in an electric furnace. While three control beams were treated at room temperature, eighteen beams were heat damaged. The heat damaged beams were strengthened with FRP laminates and then tested until complete failure. Two different strengthening patterns of glass fiber reinforced polymer (GFRP) strengthening materials were used. The strengthened beams were then tested in a loading frame under 4 point loading condition. The load-deflection curves for the beams were examined to evaluate the capability of various strengthening patterns. Structural performance of various strengthening patterns were gauged in terms of failure mode, flexural strength, secant stiffness and the energy absorption capacity i.e. area under the load-displacement curve. It was observed that the beams exposed to different temperatures experienced a reduction in ultimate load carrying capacity ranging from 14 % to 61%. The secant stiffness and energy dissipation were reduced in the range of 34% to 56% and 10% to 41% respectively. The study shows that GFRP wraps were quite capable of restoring the flexural strength of heat damaged beams

Blast vibration dependence on total explosives weight in open-pit blasting

It is well established that the blast design parameters, namely explosives weight per delay, distance between the blast site and monitoring location, delay interval, total explosives detonated in a blasting round, velocity of detonation (VOD) of explosives, burden, spacing, explosive column length, top stemming length, number of decks and their length, transmitting media and its geology, and scattering in the delay time of detonators, influence blast-induced vibrations. A study was conducted to assess the effect of total weight of explosive detonated in the blast in ground on the magnitude of blast vibrations at four big coal open-cast mines in India keeping all the parameters constant as stated above. Accordingly, experimental as well as production blasts were conducted at drag line and shovel benches. The results revealed that the magnitude of blast vibrations was influenced by the total amount of explosive detonated in a blast in ground at shorter distances regardless of maximum explosives weight per delay. This paper describes the result of a study carried out to investigate these effects at open-cast projects in India. The study involved 60 blasts with varying blast designs and 498 vibration data were recorded

Disorder-order transition of λ CII promoted by low concentrations of guanidine hydrochloride suggests a stable core and a flexible C-terminus

The CII protein of bacteriophage λ, which activates the synthesis of the λ repressor, plays a key role in the lysis-lysogeny switch. CII has a small in vivo half-life due to its proteolytic susceptibility, and this instability is a key component for its regulatory role. The structural basis of this instability is not known. While studying guanidine hydrochloride-assisted unfolding of CII, we found that low concentrations of the chaotrope (50-500 mm) have a considerable effect on the structure of this protein. This effect is manifest in an increase in molar ellipticity, an enhancement of intrinsic tryptophan fluorescence intensity and a reduction in ANS binding. At low concentrations of guanidine hydrochloride CII is stabilized, as reflected in a significant decrease in the rate of proteolysis by trypsin and resistance to thermal aggregation, while the tetrameric nature of the protein is retained. Thus low concentrations of guanidine hydrochloride promote a more structured conformation of the CII protein. On the basis of these observations, a model has been proposed for the structure of CII wherein the protein equilibrates between a compact form and a proteolytically accessible form, in which the C-terminal region assumes different structures

A Case of Trichotillomania With Comorbid Depression And Anxiety

BACKGROUND: Trichotillomania also called hair-pulling or compulsive hair-pulling disorder is a psychiatric condition that involves recurrent, irresistible urges to pull out hair from their scalps, eyebrows, or other areas of the body.[1] It is an uncontrollable urge that is present after an anxiety-provoking situation and which causes severe distress it can interfere with one’s social, occupational functioning.[6] The term trichotillomania was coined by the French dermatologist Francois Henri Hallopeou in the year 1889.[2] The lifetime prevalence of trichotillomania is estimated to be between 0.6% and 4.0% of the overall population with a 1% prevalence in gender-wise.[5] The mean age at diagnosis is between 9 and 13 years, the symptoms can be pulling out hair repeatedly breaking off pieces of hair, eating or keeping hair, feeling relieved after pulling hair.[2]. Associated symptoms included sadness, lack of attention and concentration, lack of interest in doing daily activities, which affect the socio- functional aspects of the person. The comorbid conditions or the distress is mainly leading the person for consultation in ICD-10 and DSM IV, trichotillomania is classified under impulse control disorder in DSM V it is under obsessive-compulsive and related disorders. [1] CASE DESCRIPTION: A 20-year-old adult female was referred from the Department of Dermatology presented with a history of hair pulling, hair loss and anxiety, sadness related to her hair-pulling behavior. She had these symptoms for the past 4 years. The reason for referral was that the comorbid anxiety, and their history taking suggestive of hair pulling associated with anxiety. After collecting the detailed history and psychological assessment, it was confirmed as a case of Trichotillomania, the comorbid condition are depression and anxiety. CONCLUSIONS: This case report presents trichotillomania the assessment indicated as a moderate level of anxiety and depression, so it is very essential for a detailed investigation, and also both pharmacotherapy and psychotherapy are very essential for the complete recovery of the patient

Deep learning to filter SMS spam

The popularity of short message service (SMS) has been growing over the last decade. For businesses, these text messages are more effective than even emails. This is because while 98% of mobile users read their SMS by the end of the day, about 80% of the emails remain unopened. The popularity of SMS has also given rise to SMS Spam, which refers to any irrelevant text messages delivered using mobile networks. They are severely annoying to users. Most existing research that has attempted to filter SMS Spam has relied on manually identified features. Extending the current literature, this paper uses deep learning to classify Spam and Not-Spam text messages. Specifically, Convolutional Neural Network and Long Short-term memory models were employed. The proposed models were based on text data only, and self-extracted the feature set. On a benchmark dataset consisting of 747 Spam and 4,827 Not-Spam text messages, a remarkable accuracy of 99.44% was achieved

An Overview of Management of Cancer Approach with Medical and Dental Considerations

This review emphasizes about making the members of the professional Colleges aware of some important aspects of oral cancer in particular & cancer of body in general and its impact on the Dental Surgeons to be a part of the weapon against fighting this devastating disease. Cancer is the major public health problem affecting developed and developing countries. Therefore this review focusses on cancer management by taking into mind dental and medical considerations

Coronavirus Disease 2019 (COVID-19): Future Challenges and Recommendations for Dental Settings

The novel coronavirus outbreak is a contagious disease affecting the countries around the world. The quick advancing nature of pandemic has gripped the entire community making it a public health emergency. Infection control preventive measures are necessary to prevent it from further spreading. Medical practitioners, health care workers and Dentists are at high risk of acquiring and transmission of infection. The virus transmission occurs through respiratory tract, aerosols and droplets. Clinical manifestations of virus vary from mild to severe sickness. This review article mainly emphasizes on all the information collected to date on the virus, and future recommendations for dental settings to manage the further spread of this virus

Free-flap reconstitutions of head and neck defects after oncologic ablation

Background: Head and neck cancers are the sixth most common cancers worldwide. The primary treatment modality for most head and neck cancers is surgery with reconstruction of resultant defects. Reconstruction of these defects is a unique challenge as it has to not only restore integrity but also function and often cosmesis. The objective of this study was to assess the utility of free flaps in the reconstruction of these defects, done in a tertiary care centre in a three-tier city in India. Methodology: We analyzed the computerized medical records of the last 3 years in this retrospective study carried out in the department of head and neck oncology at the cancer centre. The study included cases that had undergone surgery for head and neck cancer and underwent free flap reconstruction. Results: Out of the 1061 cases requiring reconstruction after an oncologic ablation, 201 cases underwent free flap reconstruction. For defects requiring Facio cutaneous reconstruction, the radial forearm was the preferred donor free flap site, while the fibula was the preferred donor site for mandibular reconstructions survival rate was 94.5%, with factors like age and comorbidities like diabetes and hypertension or habits like cigarette smoking or tobacco chewing not affecting survival rates. Twenty cases of minor flap complications were observed. Conclusions: Free flap reconstructions for head and neck defects after oncologic ablation have been a boon with good survival rates and immense flexibility of use, giving good cosmetic and functional outcomes. Our study shows that a significant number of free flap reconstructions can be done in a tertiary care centre in a three-tier city in India with an internationally comparable survival rate