Institute Of Materials Research Articles

OBSERVATIONAL STUDY OF PREVALENCE OF VARICOSE VEINS IN TERTIARY CARE CENTRE OF JHARKHAND

Introduction: Varicose veins cause a great deal of morbidity in our population today. They are part of the penalty we pay for the adoption of the erect posture. They affect 10–20% of population in the Western world but in India, it affects about 5% of the population. Varicose veins do not threaten life and are seldom disabling, but they cause a considerable demand on medical care. They are the cause of morbidity and loss of precious work hours and a signicant nancial burden on the health-care system. To study the epidemiological factors with respect toAims and Objective : age, sex, and clinical prole in patients of varicose veins. A total of fty cases of were examined in Rajendra Institute ofMaterials and Methods: Medical sciences, Ranchi. All patients underwent detailed clinical examination followed by color Doppler ultrasound. In our study, out ofResults: 50, 5 patients were females and 45 patients were males. Maximum patients were in age group of 45-54 years. Majority of patients had involvement of great saphenous vein (GSV). Unlike the western world, majority of patients presenting with varicose veins were males. ObesityConclusion: and increasing age are important risk factors for development of varicose veins. Usg color Doppler was found to diagnose varicose veins more easily than clinical evaluation.

Recent Advances in Fe-MOF Compositions for Biomedical Applications.

To date, number of new and attractive materials have been applied in drug delivery systems (DDDs) to improve the efficiency of the treatment of cancers. Some problems like low stability, toxicity and weak ability of targeting have hampered most of materials for further applications in biomedicine. MIL(MIL = Materials of Institute Lavoisier), as a specific subclass of metal-organic frameworks (MOFs) owns more advantages than other subclass MOFs, such as better biodegradability and lower cytotoxicity. However, until now, systematic -s and analyses of Fe-based MIL on medical applications are rarely though the majority of documents discussed one research branch of the porous materials MOFs. In this review, we have focussed mainly on the latest studies of applications, including bioimaging, biosensing, and antibacterial and drug delivery on Fe-based MIL. The existing shortcomings and future perspectives of the rapidly growing biomedical applications of Fe-based MIL materials addressing dosage and loading strategies issues are also discussed briefly, and further studies with the use of different therapies will be of great interest. This article reviews the Fe-based MOFs design and biomedical application, including biosensing, bioimaging, antibacterial agent, and drug delivery in recent years.

Effect of droplet heat content distribution on humping formation in high speed GMAW

1) MOE Key Laboratory for Liquid-Solid Structure Evolution and Materials Processing, Instituteof Materials Joining, Shandong University, Jinan 250061, China2) State Key Laboratory for Advanced Welding & Joining, Harbin Institute of Technology, Harbin 150001,China3) BAM Federal Institute for Materials Research and Testing, Division V.5 Safety of Joined Components,Berlin 12205, GermanyManuscript received 22 March 2011; in revised form 18 June 2011The momentum of strong backward °owing melt jet and the thermal action fromtransferred droplets are two dominating factors afiecting the formation of humpingbead in high speed gas metal arc welding (GMAW). Appropriate describing the in°u-ence of the distribution mode of droplet heat content in the weld pool is essential tounderstand the physical mechanism of humping bead formation. Based on the exper-imental results, four kinds of droplet heat content distribution modes are proposedand employed to calculate the transient evolution of the temperature fleld and weldpool during high speed GMAW process. Through making comparison of predictedand measured weld bead dimensions, a suitable and adaptive distribution mode ofdroplet heat content is found,

Transmission Electron Microscopy Observations on Lamellar Melting of Cold-Crystallized Isotactic Polystyrene

Advanced Polymers and Chemicals Program, Institute ofMaterials Research and Engineering, 3 Research Link,Singapore 117602, and Institute of Materials Science,Department of Chemical Engineering, University ofDortmund, D-44221 Dortmund, GermanyReceived March 1, 2001Revised Manuscript Received April 21, 2001

The Borthwick Institute of Historical Research

Attention is hereby directed to a recently established research center in England which cannot fail to offer opportunities for study to many scholars who work in some of the fields represented by Traditio. This center is the Borthwick Institute of Historical Research, founded in 1952 and occupying St. Anthony's Hall, York, a guildhall dating from the fifteenth century. The archives assembled there and administered under the direction of Canon J. S. Purvis cover a period in the history of North England of more than seven hundred years. The Institute's materials will enable students to explore the great variety of subjects, using documents which have never before been so fully available.