Informatics Publishing Limited

R. Kartik ¹, T. M. Sasi Kumar ¹, K. Raj Kumar ¹, K. Pavithra ¹

Affiliations
1 Central Institute of Plastics Engineering and Technology (CIPET), Guindy, Chennai-32, IN

Abstract

Tissue engineering is an interdisciplinary field that merges together, the principles of life sciences, material sciences, engineering and surgery to develop biological substitutes that restore, maintain or improve the function of biological tissues and organs. One of the most sought after aspect of this tissue engineering, pertaining to material science, is the design of polymer scaffolds. The traditional polymer scaffolds are primarily made out of PE and PP. These scaffolds are permanent and should they be removed, the patient must undergo a second surgery. Also, these scaffoldings often drop from their original position, causing injury to nearby tissues and organs. Thus the focus, today, is slowly shifting towards the bioresorbable scaffolds which get absorbed by the body. Polyhydroxyalkanoates (PHA), obtained from bacterial sources, belongs to one such class of polymers with an immense potential as scaffolds. In this paper 10-poly (3-hydroxybutyrate-co-3-hydroxyvalerate) was assessed for its application as a scaffold. 10-PHBV scaffolds, prepared by Emulsion Freezing Technique, were subjected to Tensile, In-vitro degradation, Weight loss and SEM tests under ASTM standards. Mechanical Properties, Retention and Weight Loss characteristics were then observed. The results indicate that this copolymer is to play a prospective role in the construction of bioresorbable polymer scaffolds.

Keywords

Bioresorbable Scaffolds, In-Vitro Degradation, Polyhydroxyalkanoates –PHA, Poly (3-Hydroxybutyrate-co-3-Hydroxyvalerate)-PHBV.

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K. Pavithra ¹, T. Vijayalakshmi ¹

Affiliations
1 K.G. College of Arts and Science, Coimbatore, IN

Abstract

The development of the cloud service model delivers business-supporting technology more efficiently than ever before. The shift from server to service-based thinking is transforming the way technology departments think about, design, and deliver computing technology and applications. Social networks are used to reflect real world relationships that allow users to share information and form connections between one another, essentially creating dynamic Virtual Organizations. The Nature of Social networks and Cloud computing, users are starting to explore new ways to interact with, and exploit these developing paradigms. At an unprecedented pace, cloud computing has simultaneously transformed business and government, and created new security challenges. We propose leveraging the pre-established trust formed through friend relationships within a Social network to form a dynamic “Social Cloud”, enabling friends to share resources within the context of a Social network. This paper outlines we will discuss what these dangers are and how to use these sites more safely.

Keywords

Social Network, Cloud Computing.

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K. Pavithra ¹, G. F. Ali Ahammed ²

Affiliations
1 VTU, PG Center, Mysuru, IN
2 Dept. of Digital Electronics and Communication System, VTU, PG Center, Mysuru, IN

Abstract

WIMAX (World Wide Interoperability for Microwave Access) is used to provide a wireless solution in the metropolitan area networks. WIMAX network is capable of wide range coverage, high data rates, secured transmission and mobility supported at vehicular speed. Mobile WIMAX is one of the best concepts for system designed in fixed wireless access to provide good performance and cost effective solution. In this paper, performance of the WIMAX network is analyzed in terms of throughput, end to end delay, and jitter and packet reception. Simulation is carried out using QUALNET simulator. In this paper AODV, DYMO, ZRP routing protocols are applied to the created mobility scenario. DYMO shows best packet reception, highest throughput, low jitter and low end to end delay. We can say DYMO showed best performance out of AODV, ZRP. Later we have compared WIMAX scenario having mobility and having no mobility by applying DYMO Protocol which we have got under experimentation in terms of best performance. WIMAX scenario having no mobility shows the highest packet reception, high through put, low jitter and low end to end delay compared to the WIMAX scenario having mobility. Later we have applied fading condition to the mobility scenario and it is compared with the WIMAX mobility scenario under no fading condition. We have got the result of high throughput and high packet reception in WIMAX Mobility scenario under no fading condition. To improve the Packet Reception in WIMAX mobility scenario under fading condition, we will going to Apply ARQ. As a result we have got the improved packet reception after applying ARQ to the WIMAX mobility Scenario under fading condition. WIMAX Scenario having Mobility Under fading and WIMAX Scenario having no Mobility under fading is compared. We have got high throughput and high packet reception in WIMAX Scenario having Mobility Under fading condition.

Keywords

WIMAX, AODV, HRQ, Tangbility.

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K. Pavithra ¹, T. Lakshmi ²

Affiliations
1 Department of Pharmacology, Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, IN
2 Department of Pharmacology, Saveetha Dental College and Hospitals, Chennai, IN

Abstract

Aim:-To determine the prevalence of the conventional risk factors among dental professionals. Background:-All conventional risk factors are significantly associated with the risk of coronary artery disease (CAD).Tobacco use also an conventional risk, Current smoking >10 cigarettes or beedi per day is associated with a significant increase in the risk of heart attack. Method:-cross-sectional analysis was conducted on saveetha dental college using post graduates students .Using Centres for Disease Control and Prevention growth charts to determine percentage.20 questionnaires was prepared for 100 post graduates students to conclude the awareness about conventional risk factor among dental professionals. Conclusion:-87.5% of the post graduates had awareness about conventional risk factors.

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A. Vinita Mary ¹, N. Manikandan ², K. Pavithra ², M. Nathiya ², R. Kesavan ¹

Affiliations
1 Department of Public Health Dentistry, Thai Moogambigai Dental College and Hospital, IN
2 Thai Moogambigai Dental College and Hospital, IN

Abstract

This article depicts about depressive symptoms among patients visiting a hospital. Depression is the most common mental illness among people in many parts of the world. A person who suffers from depression experiences many symptoms which affects their day to day life to study the contributing factors associated with various levels of depression, a survey was conducted among patients visiting a private dental college at Chennai, Tamil Nadu. Convenience sampling technique was used for the survey. The patients were categorised according to their age, gender, education and employment status. Socio-economic status of the family head was also assessed in the survey. Marital status of an individual and any medical problems presented was also interviewed in the questionnaire. A list of PHQ-9 questionnaire was used to assess the associating factors among various level of depression.

Keywords

Depression, Patients, Socio-Economic Status, Prevalence, Mental Health.

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