16 research outputs found

    A clinical analysis of 50 cases of pathological myopia.

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    INTRODUCTION: Eye is the most important sense organ of the human body. The primary responsibility of the visual function is carried out by retina. Pathological changes of retina can cause irreversible blindness. Myopia causes impaired visual acquity among school children as well as in adults. Retinal degeneration and retinal detachment is also commonly in myopic patients. AIM OF THE STUDY: To analyze the clinical features and biometric parameters in pathological myopia. To analyze the visual parameters in relation to posterior polar changes and disc changes. To study the incidence of retinal degenerations and detachment in pathological myopes. To analyze the association of other ocular association like lens changes, open angle glaucoma, retinitis pigmentosa, strabismus in cases of pathological myopia. MATERIALS AND METHODS: This study was carried out at Retina clinic, Regional Institute of ophthalmology and Government ophthalmic hospital Chennai from December 2004 to September 2006 . This is a prospective study.Cases were registered, evaluated, treated and followed up during the study period. Inclusion criteria : a. Patients with a refractive error of > 6.00 D. b. Patients with normal corneal curvature. c. Patients with axial length of > 24 mm. Exclusion criteria : a. Patients with index myopia. b. Patients with abnormal corneal curvature.( curvature myopia were excluded). c. Low degrees of myopia and congenital myopia. d. Other ocular pathologies like micro ophthalmos, ROP, ectopia lentis were excluded. Study design : Myopic patients attending the RIO GOH - OPD between the period December 2004 to September 2006 were selected randomly – criteria applied. SUMMARY: 96 eyes of 50 patients with pathological myopia were analysed based on their axial length, corneal curvature and ocular fundal changes at the posterior pole and in the peripheral retina Highest incidence of pathological myopia was noted in the age group between 21 – 30 yrs. CONCLUSION: Degenerative changes are more commonly seen in higher degrees of myopia & so all cases of myopia must be examined meticulously with indirect ophthalmoscope which can pick up complications at the earliest & can be treated effectively. This can aid in retaining useful ocular function. Awareness need to be created among myopic population regarding visual hygiene, safety precautions, risks & complications involved

    Removable Partial Denture: A “Stopgap” arrangement or a “Stepping stone” for complete dentures?

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    This review is aimed to discuss the pros and cons of early and uneventful extraction routinely carried out in the dental clinics. Abrupt extractions are damaging physiologically as well as psychologically. Transition is the need of the day and should be stressed. A smooth uneventful transition from natural teeth to artificial ones is the key in a successful patient - dentist relation and a successful treatment

    Comparative studies on poly-β-hydroxybutyrate (PHB) with gelatin and PHB with starch as a finished fabric

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    ABSTRACT The aim of the study was to isolate the PHB producing strains from soil samples, quantitative screening, extraction and estimation of PHB. The preliminary step involves the preparation of PHB, gelatin, starch, PHB with gelatin and PHB with starch as a polymer solution. The production of PHB with gelatin and starch coated textiles laminates by pad dry cure method. The determination of the physical, chemical and functional properties of the developed textile laminates. Comparative studies of invitro degradation of developed textile laminate (PHB with gelatin / PHB with starch) for biomedical application

    IJCM_156A: A Cross-sectional study on the Prevalence of Risk Factors of Breast Cancer and Awareness of Breast Cancer Screening in Women of age group 30 to 70 years in Karamadai Block of Coimbatore Health Unit District

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    Background: Breast cancer, the most common malignancy among women globally, recorded over 2.26 million new cases and almost 685,000 deaths in the same year. Evidence indicates breast cancer risk links to both modifiable and non-modifiable lifestyle factors. Promoting education and access to screening programs is crucial for early detection and intervention in breast cancer. This approach ultimately enhances the effectiveness of prevention efforts and reduces complications and mortality of breast cancer. Objective: To estimate the prevalence of risk factors of breast cancer and to assess the awareness of breast cancer screening in women of age group 30-70 years in Karamadai Block of Coimbatore Health Unit District. Methodology: A cross sectional study was conducted among 150 women in Coimbatore using a semi-structured questionnaire and statistical analysis was done using SPSS 21 version. Results: Out of 150 participants, the mean age of subjects was 50 ± 11 years, with 98% being married women. The prevalence of modifiable and non- modifiable risk factors of breast cancer were found to be 61% and 9% respectively. 54% were aware of government facility-based breast cancer screening. But only 25% had undergone screening for breast cancer. Individuals who underwent breast cancer screening in the last one year found to be aware of breast cancer screening compared to those who did not. (OR 2.5, 95% CI 2.02-3.18). Conclusion: Awareness and screening for breast cancer are low among the study participants. Women =30 years of age attending all outpatient departments in any health facility should be educated regarding the importance of screening of breast cancer

    An Architectural View of the Entities Required for Execution of Task in Pervasive Space

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    Aimed to provide computation ubiquitously, pervasive computing is perceived as a means to provide a user with the transparency of anywhere, any place, anytime computing. Pervasive computing is characterized by execution of task in heterogeneous environments that use invisible and ubiquitously distributed computational devices. It relies on service composition that creates customized services from existing services by process of dynamic discovery, integration and execution of those services. In such an environment, seamlessly providing resource for the execution of the tasks with limited networked capabilities is further complicated by continuously changing context due to mobility of the user. To the best of our knowledge no prior work to provide such a pervasive space has been reported in the literature. In this paper we propose an architectural perspective for pervasive computing by defining entities required for execution of tasks in pervasive space. In particular we address the following issues, viz entities required for execution of the task, architecture for providing seamless access to resources in the face of changing context in wireless and wireline infrastructure, and dynamic aggregation of resources under heterogeneous environment. We also evaluate the architectural requirements of a pervasive space through a case study

    A framework for resource discovery in pervasive computing for mobile aware task execution

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    Aimed to provide computation ubiquitously, pervasive computing is perceived as a means to provide a user the transparency of anywhere, anyplace, anytime computing. Pervasive computing is characterized by execution of high-level user tasks in heterogeneous environments that use invisible and ubiquitously distributed computational devices. Resource discovery is an integral part of pervasive computing. Due to the limited computing capacities of the mobile entities in the pervasive space it becomes important for these entities to discover equivalent peers to execute complex tasks. Also requirements of tasks in pervasive space are diverse ranging from static resources like printers to dynamically varying resources like network bandwidth. This requires seamless aggregation of resources/services required for the execution of the task. This is further complicated by frequent associations and disassociation of mobile elements with hotspots which are highly variable in performance and availability. We believe that predicting variability of resources would make the task mobile aware rather than mobility oblivious. We propose a framework for estimation of future resource requirements, which would allow the mobile applications to adapt to wearing (due to disassociations and reassociations) of resources. We also show through case analysis that proactive systems benefit from our architecture

    One Pot Synthesis of Nanosilver Incorporated Cellulosic Fiber-Based Nonwovens for Wound Dressing Applications

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    Textile substrates incorporated with antimicrobial agents offer a great advantage in treating chronic wounds infected with microbes. In this work, a simple one-step process is proposed to develop cellulosic nonwoven incorporated with silver nanoparticles using wet laying technique. In order to improve the dispersion of the fibers during wet laying and better binding of silver nanoparticles, the fibers were cationized using CHPTAC. The decrease in absorbance value of the drain at 470 nm confirms binding of nanosilver to the fiber. A maximum zone of inhibition of 18 mm and 19 mm was obtained for cationized web. The developed web can be used for wound dressing applications

    Co-infection of Wilt-Resistant Chickpeas by Fusarium oxysporum f. sp. ciceri and Meloidogyne javanica

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    Fusarium oxysporum f. sp. ciceri and Meloidogyne javanica are important pathogens of chickpea. Interrelationships between Fusarium oxysporum f. sp. ciceri and M. javanica were investigated on 53 Fusarium wilt-resistant chickpea genotypes in pot experiments. All of the genotypes were susceptible to M. javanica. Fusarium wilt resistance in one genotype (ICC 12275) was ineffective in the presence of M. javanica, and all the plants completely wilted. Resistance in four genotypes (ICCs 11319, 11322, 12254, 12272) was reduced in the presence of the nematode. Vascular discoloration above the collar region of the plants, an indication of susceptibility to the fungus, was observed. Wilt resistance in 48 genotypes was not modified by M. javanica. The effects of interactions between the pathogens on shoot and root weights, gall index, and galled area of root were significant only on 10-28% of the genotypes. Presence of the fungus reduced the adverse effects of nematodes on growth of 15% of the genotypes. Appraisal of wilt-resistant chickpea genotypes for their reactions to combinations of the two pathogens would help to identify and develop chickpea cultivars with wilt resistance stable in presence of M. javanica
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