114 research outputs found

    Novel Visual Authentication Protocols to Defend Key Logging Issues

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    The way to achieve secure communication is to have  authentication protocol, which is a type of cryptographic protocol with the purpose of authenticating entities. The design of secure authentication protocols is quite challenging, considering that various kinds of root kits reside in PCs (Personal Computers) to observe user’s behavior and to make PCs untrusted devices. Involving human in authentication protocols, while promising, is not easy because of their limited capability of computation and memorization. Therefore, relying on users to enhance security necessarily degrades the usability. On the other hand, relaxing assumptions and rigorous security design to improve the user experience can lead to security breaches that can harm the users’ trust. In this paper, we demonstrate how careful visualization design can enhance not only the security but also the usability of authentication. To that end, we propose two visual authentication protocols: one is a one-time-password protocol, and the other is a password-based authentication protocol. Through rigorous analysis, we verify that our protocols are immune to many of the challenging authentication attacks applicable in the literature. Furthermore, using an extensive case study on a prototype of our protocols, we highlight the potential of our approach for real-world deployment: we were able to achieve a high level of usability while satisfying stringent security requirements.

    Cross-Project Fault Prediction using Artificial Intelligence

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    Software defect prediction project focuses on finding errors or flaws in software and aiming to improve accuracy which gives evolution batch with detectable results while adding to modern outcomes and advancement liability foretelling defective code regions can assist initiators with recognizing bugs and arrange their test activities. The percentage of groups providing the legitimate foretelling is fundamental for early identification

    Facial Skin Disease Detection using Image Processing

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    Busy lifestyle, modernization, increasing pollution and unhealthy diet have led to problems which people are neglecting. Not drinking enough water, stress and hormonal changes are causing problems to skin. Causes may be situational or genetic. Few skin conditions are minor while others can be life-threatening. The skin is the largest organ of the body and is composed of water, proteins, fats and minerals. Problems appear on outer layer of the skin that is epidermis. Skin diseases are considered to be the fourth most common cause of human illness. Skin diseases are observed to increase with age and were seen frequently in both men and women. Skin disorders can be temporary or permanent. Skin diseases have an impact on individual, family and social life caused by inadequate self-treatment which may also induce psychological problems. In recent years, use of computer technologies is becoming practically universal for both personal and professional issues. Facial skin problem identification and recognition has evolved to a great extent over the years. Detection of skin diseases is done using Convolution Neural Network (CNN) and image processing methods. CNN yields better performance in terms of accuracy, precision and results than the existing conventional methods. Image processing uses digital computer to process the images through an algorithm. We focus on features like skin tone, skin texture and color. We present a brief review about various facial skin problems providing more insight about the effective models and algorithms used

    Magnetic behavior of nanocrystalline ErCo2

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    We have investigated the magnetic behavior of the nanocrystalline form of a well-known Laves phase compound, ErCo2 - the bulk form of which has been known to undergo an interesting first-order ferrimagnetic ordering near 32 K - synthesized by high-energy ball-milling. It is found that, in these nanocrystallites, Co exhibits ferromagnetic order at room temperature as inferred from the magnetization data. However, the magnetic transition temperature for Er sublattice remains essentially unaffected as though the (Er)4f-Co(3d) coupling is weak on Er magnetism. The net magnetic moment as measured at high fields, sat at 120 kOe, is significantly reduced with respect to that for the bulk in the ferrimagnetically ordered state and possible reasons are outlined. We have also compared the magnetocaloric behavior for the bulk and the nano particles.Comment: JPCM, in pres

    A HIERARCHICAL SCHEME TO ACHIEVE FIND TIME AND OPERATION ON DOCUMENTS

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    Many works were suggested in many types of threat to achieve various benefits for search for example single keyword search, multi-keyword rated search, and so forth.  Of individuals works, multi-keyword kinds of rated search is becoming more importance because of its realistic effectiveness.  We submit a great search method which draws on the tree above encoded cloud information, and it also manages multi-keyword search furthermore to dynamic process on selection of documents.  For acquiring of high search effectiveness, we produce a tree-based index structure and propose an formula using the index tree. The forecasted plan is called to provide multi-keyword query furthermore to a particular result ranking, in addition dynamic update above document collections. Due to important structure of tree-based index, forecasted search system will effectively get sub-straight line search serious amounts of manage the operation of deletion furthermore to insertion of documents

    Comparing the personal oral hygiene practices among Government and Private school children of Mahabubnagar, Telangana state - A cross sectional study

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    Introduction: Oral health is fundamental to general health and well-being. A healthy mouth enables an individual to talk, eat, and socialize without experiencing active disease, discomfort, or embarrassment. Objectives: To assess the knowledge and oral hygiene practices of school children from both Government and Private schools in Mahabubnagar district. Materials and Methods: A total of 150 children aged 11–15 years were randomly selected from six Private and six Government schools. A questionnaire related to their personal and oral hygiene practices was distributed to the school children. Results: The results of this study showed thatmost respondents had a good knowledge of basic hygiene measures and positive attitude towards oral hygiene. The students of both schools exhibited poor oral hygiene practices but were significantly reported more in the Government school than in the Private schools (p<0.005). Majority of the respondents (91.3%) used a commercial toothbrush and toothpaste and half of them (50%) reported brushing twice a day. Two-third of the respondents (75%), had never visited a dental clinic. Conclusion: The results of the present study showed that the knowledge and oral hygiene practices of Government school children were less satisfactory in someaspects when compared to private school children.&nbsp

    Magnetic Anomalies in a New Manganocuprate Gd3Ba2Mn2Cu2O12

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    The manganocuprate compound Gd3Ba2Mn2Cu2O12 (Gd-3222) has been synthesized by conventional solid state reaction method and its magnetic behavior has been studied by dc and ac magnetization (M) and heat capacity (C) measurements as a function of temperature (T). This compound crystallizes in a tetragonal structure (space group I4/mmm). We find that this compound exhibits three magnetic transitions, around 2.5, 4.8 and 9 K, as inferred from dc and ac magnetic susceptibility (chi) data. However, no evidence for a well-defined lambda-anomaly is found in C(T) above 1.8 K, though there is a gradual upturn below about 10 K. An application of a magnetic field results in a peak around 5K, while ac chi appears to show a very weak frequency dependence below 9 K. Isothermal M curve at 1.8 K exhibits a weak hysteresis without any evidence for saturation even at fields as high as 120 kOe. These results imply that this compound undergoes a spin-glass-like freezing at low temperatures, though the exact nature of the magnetic transition at 10 K is not clear. The magnitude of the magnetocaloric effect, as inferred from M and C data, is quite large over a wide temperature range below 50 K peaking around 4 K.Comment: 1 PDF file, 8 Figures, 18 page

    Community Awareness of HPV Screening and Vaccination in Odisha

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    Introduction. A number of new technologies including cervical cancer screening and vaccination have introduced new tools in the fight against cervical cancer. Methods. This study was set in Odisha, India, at the Acharya Harihar Regional Cancer Center and study research infrastructure at the Asian Institute of Public Health. IRB approvals were obtained and a research assistant recruited 286 women aged 18–49 years, who provided informed consent and completed a survey tool. Data were entered into EpiData software and statistical analysis was conducted. Results. 76.3% women participants were married, 45.5% had sexual debut at age 21 or greater, 60.5% used contraception, 12.2% reported having a Pap smear in the past, and 4.9% reported having prior genital warts. Most, 68.8% had never heard of HPV and 11.9% were aware that HPV is the main cause of cervical cancer. 82.9% women thought that vaccinations prevent disease, and 74.8% said they make the decision to vaccinate their children. Conclusion. The Odisha community demonstrated a low level of knowledge about cervical cancer prevention, accepted vaccinations in the prevention of disease and screening, and identified mothers/guardians as the key family contacts

    Co-creation on Active Aging Challenges in Portugal

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    With a rapid increase in aging population worldwide, there is a need to ensure good health and wellbeing for the elderly. Healthcare system in Portugal supports opportunities and addresses challenges of its aging population by well-maintained associations between its government and private institutes. In order to stimulate an innovation ecosystem in the region, Innovation Think Tank (ITT), a part of Siemens Healthineers (SHS), has been actively engaging in various interdisciplinary projects by collaborating with local healthcare institutions. Following an invitation from the University of Evora and SHS Portugal, ITT at Evora was institutionalized. As a part of this association, a certification program was organized at Evora University, in association with Espirito Santo Hospital, Portugal. The goal of this program was to 1) train the participants on the ITT methodology 2) capture and validate healthcare trends and solutions concerning aging challenges in Portugal 3) deep dive and tackle the most prominent healthcare and aging challenges in Portugal with a focus on five key areas of Lifespan and Health, Lifespan and Demographics, Lifespan and Arts, Lifespan and Ethics & Citizenship, Lifespan and Economy. Over 30 multidisciplinary participants comprising of researchers, students, professors, industry leaders, and entrepreneurs, representing over 20 hospitals, universities, and consultancies worldwide participated in this two-week hybrid program where they learnt to apply the innovative thinking approach by working on real life problems and proposed solutions with a focus on the aging challenges and future of healthcare in Portugal. The consolidated results were presented at the outcome exhibition which included a feedback session and panel discussion with healthcare experts from Portugal and other locations worldwide. The overall outcomes of the program comprised for the definition of some of the research areas for the Lifespan Chair, academic training proposals and community intervention proposals. With its global network and infrastructure, ITT envisions to boost future research at the university, and hospital by collaborating in projects that impact the future of healthcare in Portugal and globally, as well as identifying grants and partners for implementation
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