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Search Results: 1 - 10 of 687 matches for " Devika Perera "
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Twelve Years of Rabies Surveillance in Sri Lanka, 1999–2010
Dushantha Karunanayake,Takashi Matsumoto,Omala Wimalaratne,Susilakanthi Nanayakkara,Devika Perera,Akira Nishizono,Kamruddin Ahmed
PLOS Neglected Tropical Diseases , 2014, DOI: 10.1371/journal.pntd.0003205
Abstract: Background Rabies is endemic in Sri Lanka, but little is known about the temporal and spatial trends of rabies in this country. Knowing these trends may provide insight into past control efforts and serve as the basis for future control measures. In this study, we analyzed distribution of rabies in humans and animals over a period of 12 years in Sri Lanka. Methods Accumulated data from 1999 through 2010 compiled by the Department of Rabies Diagnosis and Research, Medical Research Institute (MRI), Colombo, were used in this study. Results The yearly mean percentage of rabies-positive sample was 62.4% (47.6–75.9%). Three-fourths of the rabies-positive samples were from the Colombo, Gampaha, and Kalutara districts in Western province, followed by Galle in Southern province. A high percentage of the rabies samples were from dogs (85.2%), followed by cats (7.9%), humans (3.8%), wild animals (2.0%), and livestock (1.1%). Among wild animals, mongooses were the main victims followed by civets. The number of suspect human rabies cases decreased gradually in Sri Lanka, although the number of human samples submitted for laboratory confirmation increased. Conclusions The number of rabid dogs has remained relatively unchanged, but the number of suspect human rabies is decreasing gradually in Sri Lanka. These findings indicate successful use of postexposure prophylaxis (PEP) by animal bite victims and increased rabies awareness. PEP is free of charge and is supplied through government hospitals by the Ministry of Health, Sri Lanka. Our survey shows that most positive samples were received from Western and Southern provinces, possibly because of the ease of transporting samples to the laboratory. Submissions of wild animal and livestock samples should be increased by creating more awareness among the public. Better rabies surveillance will require introduction of molecular methods for detection and the establishment of more regional rabies diagnostic laboratories.
Clinical Correlation between Plasma Homocysteine Level and Coronary Artery Disease in Indian Patients  [PDF]
R. Ranjith, P. Devika
World Journal of Cardiovascular Diseases (WJCD) , 2017, DOI: 10.4236/wjcd.2017.712047
Abstract: Objective: The aim of this study was to evaluate correlation between plasma homocysteine and coronary artery disease (CAD) in Indian patients. Methods: This study included 150 patients, 100 subjects in study group with angiographically diagnosed CAD and 50 subjects in control group with a normal coronary angiogram. In the study group, patients were divided into three subgroups viz.: CAD only, CAD with hypertension and CAD with type 2 diabetes mellitus. Plasma homocysteine, lipid profile and other risk factors were compared. Results: Mean homocysteine levels in study group (38.34 ± 15.25 μmol/L) were significantly higher (p < 0.01) than control group (9.41 ± 4.22 μmol/L). No association was found between homocysteine level and conventional risk factors. Furthermore, no significant correlation was found between plasma homocysteine and lipid components in different groups of patients. Conclusion: The study demonstrated that increased levels of homocysteine are independently related to CAD. However, further studies involving a larger sample size will be required to substantiate the findings of the current study.
Fortalecendo o policiamento democrático e a responsabiliza??o na Commonwealth do Pacífico
Prasad, Devika;
Sur. Revista Internacional de Direitos Humanos , 2006, DOI: 10.1590/S1806-64452006000200006
Abstract: nine island countries make up the commonwealth pacific - fiji, kiribati, nauru, papua new guinea, samoa, solomon islands, tonga, tuvalu, and vanuatu. across the region, issues around policing and importantly police reform are key governance priorities, as well as being human rights concerns. policing in this particular region contends with large geographical distances within countries often spread over many islands, heterogeneous societies, violent crime, and sporadic political crises. the police must be equipped to meet these myriad challenges in support of democracy and human rights. this paper seeks ways to strengthen democratic policing in commonwealth pacific countries, by examining accountability over the police in particular. it outlines the legal frameworks, and institutional processes and mechanisms already in place to hold the police accountable - a key element of democratic policing. focusing mainly on police accountability, the aim of this paper is to describe how entrenched democratic policing is in the countries of the region, and also highlights strategies to better solidify democratic policing.
Poetische Ankünfte und Aufbrüche: Lyrische Verk rperlichung des ethnografischen Feldes Poetic Arrivals and Departures: Bodying the Ethnographic Field in Verse Llegadas y salidas poéticas: Expresando el campo de la etnografía en verso
Devika Chawla
Forum : Qualitative Social Research , 2008,
Abstract: Sozialforschung hat sich über mehrere Jahrzehnte mit dem linguistic turn besch ftigt, der insoweit als revolution r erachtet wurde, als sich Wissenschaftlerinnen und Wissenschaftler mit Fragen von Wirklichkeit, Wissen und Repr sentation besch ftigten. Innerhalb der Ethnografie wurde diese Wende insbesondere auch begrü t mit Blick auf Fragen der Intersubjektivit t, Reflexivit t und Positionalit t. Erst seit Kurzem hat das performative Paradigma zus tzlich Einfluss gewonnen, in dem Ethnograf/innen und Feldteilnehmer/innen auch in ihrer K rperlichkeit und in dem Regionen in ihrer R umlichkeit gefasst werden. Meine aktuelle ethnografische Studie über die Erfahrungen indischer Frauen mit gem des Hinduismus arrangierten Heiraten startete ich zun chst mit einigem theoretischen Vorwissen über und einer gewissen Aufmerksamkeit für positionelle und performative Besonderheiten, da ich wusste, dass ich mit Frauen zu tun haben würde, deren Entscheidungen sich sehr von meinen eigenen unterschieden. Aber sehr bald erkannte ich, dass meine Krise der Repr sentation materieller, textueller, epistemologischer und theoretischer Art war. Meine Felderfahrungen lie en mich meine Vorstellungen von ethnografischer Repr sentation grundlegend neu überdenken. In diesem Beitrag zeige ich meinen Weg in Theorie, Text und Performance bzw. weg von ihnen und ich zeige, wie ich meine eigene Feldforschung als k rperliche und r umliche material performances – eigene und die meiner Forschungspartnerinnen – rekonzeptualisiert habe. Ich wende mich dabei im Besonderen der symbolischen Analyse eines Gedichtes zu, das im Verlauf meiner Feldarbeit als performativer Text entstanden ist. Ich verstehe dieses Gedicht als eine sideways mystory, die mir erlaubte, von der Interpretin von Erz hlungen zur Kulturkritikerin zu werden, die Verborgenes aufdecken und das Publikum anregen m chte, über komplexe Wirklichkeiten nachzudenken und in ihnen zu handeln. URN: urn:nbn:de:0114-fqs0802248 For decades, social research has engaged the "linguistic turn," which was considered revolutionary in the ways that scholars began to reframe reality, knowledge, and representation. Among ethnographers, this turn was robustly embraced, especially at the level of intersubjectivity, reflexivity, and positionality in field practices. More recently, the performance paradigm reframed the field, the ethnographer, and her participants as embodied persons and places with bodied terrains and topographies. In my recent ethnographic life history study about Indian women's experiences in Hindu arranged marriages, I entered my field
Clinical Neurotoxic Disorders : Past, Present and Future
Nag Devika
Annals of Indian Academy of Neurology , 2001,
Abstract: Neurotoxins have existed on the earth from times immemorial. Old neurotoxic disorders were due to ingestion/ exposure of heavy metals and food like lathyrus sativus over a long period of time. The 20th Century with rapid industrialsation and expanding chemical and drug industry has spawned several new, hitherto unknown disorders. Old disorders continue to exist e.g. fluorosis, arsenicosis, lathyrism, manganism and lead neuropathy, along with new diseases like Minamata disease, subacute myelo optic neuropathy (SMON), MPTP-Parkinsonian syndorme, triorthcresyl phosphate (TOCP) neuroparalytic disease, pesticide induced seizures, tremor and neuropathy, solvent encephalopthy, antipileptic drug foetal syndrome and excitotoxin induced behavioural disorders. Studies on pesticides Organochlorine and organophosphates, synthetic pyrethrins, solvents, heavy metals and substances abuse in the Indian context confirm the neurotoxic nature of many synthetic substances. Future problems envisaged are of concern to clinical neurologists as many of these neurotoxic disorders mimic syndromes of well known neurological disease. The new millenium poses a challenge to the clinician as newer compounds in industry, food, drugs and chemical war agents are being developed. Molecular genetics has advanced rapidly with release of the human genome map. Animal cloning and genetically modified plant products have entered the food chain. How safe are these new inventions for the central nervous system is a big question? India cannot afford disasters like Union Carbide′s Bhopal gas leak nor be a silent spectator to manipulative biotechnology. Unless it is proven beyond all doubt to be a safe innovation, Chemicals have to be cautiously introduced in our environment. To Study, ascertain and confirm safety or neurotoxicity is an exciting challenge for the neuroscientists of the 21st century.
Measurement of longitudinal single-spin asymmetries for $W^{\pm}$ boson production in polarized $p+p$ collisions at $\sqrt{s}=510$ GeV at STAR
Devika Gunarathne
Physics , 2015,
Abstract: $W^\pm$ boson production in longitudinally polarized $p+p$ collisions provides unique and clean access to the individual helicity polarizations of $u$ / $d$ quarks and anti-quarks. Due to the maximal violation of parity in the coupling, $W$ bosons couple to left-handed quarks and right-handed anti-quarks and hence offer direct probes of their respective helicity distributions in the nucleon. These can be extracted from measured parity-violating longitudinal single-spin asymmetries, $A_L$, for $W^{+(-)}$ boson production as a function of the decay lepton (positron) pseudo-rapidity $\eta$. The STAR experiment is well equipped to measure $A_L$ for $W^\pm$ boson production for $|\eta|<1$. The published STAR $A_L$ results (2011 and 2012 data combined) have been used by several theoretical analyses suggesting a significant impact in constraining the helicity distributions of anti-$u$ and anti-$d$ quarks. In 2013 the STAR experiment has collected a large data sample of $\sim$250 pb$^{-1}$ which is more than 3 times larger than the total integrated luminosity in 2012, at $\sqrt{s}=510$ GeV with an average beam polarization of $\sim$54\%, comparable to run 2012. The status of the 2013 $A_L$ analysis will be discussed along with an overview of future plans.
Synovial White Cell Count in the Diagnosis of Septic Arthritis: Are Current Diagnostic Practices Appropriate?  [PDF]
Kalpa Perera
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.512053
Abstract: Introduction & aims: Septic arthritis is an emergency, potentially causing irreversible joint destruction and disability. Synovial WCC and polymorphonuclear cell percentage are the best predictors of septic arthritis likelihood. Yet, synovial white cell and differential count are not routinely assessed. We aim to investigate the incidence of failure to perform these tests, and to develop correct synovial fluid analysis practices. Method: This is a retrospective analysis of native joints having undergone arthrocentesis for suspicion of septic arthritis at Box Hill Hospital (BHH) during September 2011 and September 2013 inclusive. Recruitment was from the Eastern Health Decision Support Service (DSS), a database compiled from all systems within Eastern Health, of which BHH is a member. The study was limited to large joints, including hip, knee and shoulder. All prosthetic joints were excluded from the patient population. All patient histories were examined for suspicion of septic arthritis and subsequent arthrocentesis. Pathology records were accessed to determine incidence of cell count and differential. Results: One hundred and thirty-six cases of joint aspirations were identified within the time frame, of which sixty-seven fitted our criteria for evaluation. All but two cases were delivered using the DSS, which was limited to data compiled only until June 2013. The two remaining cases were identified with a manual search of the radiology and pathology databases from June to September 2013. 22 of the 67 joint aspirates studied did not have a cell count carried out. Four of these 22 cases had a diagnosis of septic arthritis. In five aspirates, there was a failure to confirm a definite diagnosis and they were thus conservatively treated as a septic joint. The remaining acute joints in which no cell count was done were gout (7 cases), pseudogout (5 cases) and rheumatoid arthritis (1 case). Cell counts were not routinely detected for a variety of reasons. Eleven aspirates were deemed too viscous, and in eight cases the sample had clotted prior to pathologist assessment. Two cases had insufficient volume, and one sample was too bloodstained to calculate a cell count and differential; likely due to traumatic aspiration. Conclusions: 33% of acute monoarthritis’ evaluated over the study period failed to have a synovial fluid WCC and differential. This may be due to inadequate samples, or lack of appropriate collection tube. Better education is required for appropriate collection and test requesting wherein a diagnosis of septic arthritis is in question.
Some Properties of Quasi- *Paranormal Operators
T. Veluchamy,A. Devika
Journal of Modern Mathematics and Statistics , 2012,
Abstract: In this study, we will investigate some properties of quasi-*paranormal operators and some relations between normal operators and quasi-*paranormal operators. Also we study sufficient conditions for normal operators and if T is any quasi-*paranormal operator in H. 2000 AMS subject classification: 47B20 and 47B38.
Optimization of Bio-Nano Interface Using Gold Nanostructures as a Model Nanoparticle System
Devika B Chithrani
Insciences Journal , 2011,
Abstract: Better knowledge of interface between nanotechnology and biology will lead to advanced biomedical tools for imaging and therapeutics. In this review, recent progress in the understanding of how size, shape, and surface properties of nanoparticles (NPs) affect intracellular uptake, transport, and processing of NPs will be discussed. Gold NPs are used as a model system in this regard since their size, shape, and surface properties can be easily manipulated. Recent experimental and theoretical studies have shown that NP-uptake is dependent upon size and shape of the NPs. Within the size range of 2-100 nm, Gold nanoparticles (GNPs) of diameter 50 nm demonstrate the highest uptake. Cellular uptake studies of rod-shaped gold nanoparticles (GNRs) show that there is a decrease in uptake as the aspect ratio of GNRs increases. The surface ligand and charge of NPs play an important role in their uptake process as well. Different proteins on the surface of the NPs can be coated for effective targeting of NPs into specific organelles. Once in the cell, most of the NPs are trafficked via an endo-lysosomal path followed by a receptor mediated endocytosis process at the cell membrane. Exocytosis of NPs is also dependent on the size and shape of the NPs, however, the trend was different to endocytosis process. These findings provide useful information to tailor nano-scale devices at single cell level for effective applications in diagnosis, therapeutics, and imaging.
An Overview of Web Data Extraction Techniques
Devika K,Subu Surendran
International Journal of Scientific Engineering and Technology , 2013,
Abstract: Web pages are usually generated for visualization not for data exchange. Each page may contain several groups of structured data. Web pages are generated by plugging data values to predefined templates. Manual data extraction from semi supervised web pages is a difficult task. This paper focuseson study of various automatic web data extraction techniques. There are mainly two types of techniques one is based on wrapper induction another is automatic extraction. In wrapper induction set of extraction rules are used, which are learnt from multiple pages containing similar data records.
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