Search Results - (Author, Cooperation:M. Ramesh)

2018-10-02

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-06-28

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-06-28

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2015-09-17

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; Anti-Bacterial Agents/*administration & dosage/pharmacokinetics ; Blood Platelets/*cytology ; Blood Vessels/cytology/metabolism/pathology ; Cell Membrane/*metabolism ; Collagen/chemistry/immunology ; Complement Activation/immunology ; Coronary Restenosis/blood/drug therapy/metabolism ; Disease Models, Animal ; Drug Delivery Systems/*methods ; Humans ; Macrophages/immunology ; Male ; Mice ; Nanoparticles/*administration & dosage/*chemistry ; *Platelet Adhesiveness ; Polymers/chemistry ; Rats ; Rats, Sprague-Dawley ; Staphylococcal Infections/blood/drug therapy/metabolism/microbiology ; Staphylococcus aureus/cytology/metabolism ; Taxoids/administration & dosage/pharmacokinetics ; Unilamellar Liposomes/chemistry ; Vancomycin/administration & dosage/pharmacokinetics

book

2004

Bildungspolitik ; Gesundheitspolitik ; Soziale Sicherung ; Sozialpolitik ; Wohnungsbaupolitik ; Hongkong ; Ostasien ; Singapur ; Taiwan

English

1089-7550

AIP Digital Archive

Physics

Bismuth-doped lutetium iron garnet (BLIG) is an important material for implementation of the interaction between magnetostatic waves and optical guided modes. Sodium oxide is suggested to reduce the viscosity of the lead-free melt used for liquid-phase epitaxy (LPE) growth of the films, improving flux removal. The effect of the incorporation of sodium into the garnet lattice on the important magnetic and magneto-optic properties is studied, using yttrium iron garnet as a model system. Negligible effect on the Faraday rotation and magnetostatic wave passband is noted. The uniaxial anisotropy field is affected in the negative direction by a growth induced anisotropy due to sodium inclusion, but this effect may be removed by annealing.

Electronic Resource

1542-474X

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Objective: The purpose of this study was to report a novel electrocardiographic (ECG) phenomenon in acute pulmonary embolism characterized by QT interval prolongation with global T-wave inversion. Methods: Among a total of 140 study patients with a confirmed diagnosis of acute pulmonary embolism, patients who fulfilled the inclusion criteria for QT interval prolongation with global T-wave inversion were examined. Each of these patients had undergone a detailed clinical evaluation including testing for myocardial injury and echocardiography. Results: QT interval prolongation with global T-wave inversion was found in five patients (age 51–68 years) with acute pulmonary embolism. Four were women. Acute pulmonary embolism was diagnosed by ventilation-perfusion scan in three patients and by spiral computed tomography in other two patients. None of the patients had any right or left ventricular regional wall motion abnormalities on echocardiography. All patients had changes characteristic of hemodynamically significant pulmonary embolism, including right ventricular stunning or hypokinesis and dilatation in five patients with paradoxical septal motion in four. Acute coronary syndrome was ruled out in each patient by clinical evaluation, serial ECGs and cardiac markers, and lack of regional wall motion abnormalities on echocardiography. Prolongation of QT intervals (QTc 456–521 ms) with global T-wave inversion was noted on presentation. The ECG changes gradually resolved in 1 week in all patients with appropriate treatment of acute pulmonary embolism. One patient died. None of the patients developed torsade de pointes. Conclusions: Acute pulmonary embolism may occasionally result in reversible QT interval prolongation with deep T-wave inversion, and, thus should be considered among the acquired causes of the long QT syndrome.

Electronic Resource

1542-474X

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Objective: To evaluate left bundle branch block (LBBB) as an indicator of advanced cardiovascular involvement in diabetic (DM) patients by examining left ventricular systolic function and proteinurea. Methods: Data of 26 diabetic patients with left bundle branch block (DM with LBBB) were compared with data of 31 diabetic patients without left bundle branch block (DM without LBBB) and 18 nondiabetic patients with left bundle branch block (non-DM with LBBB). The inclusion criteria were age 〉45 years, and diabetes mellitus type 2 of 〉5 years. Results: Mean ages of patients in DM with LBBB, DM without LBBB, and non-DM with LBBB groups were 67 ± 8, 68 ± 10, and 65 ± 10 years, respectively (P = NS). Females were 65%, 61%, and 61%, respectively (P = NS). Left ventricular ejection fraction in DM with LBBB was significantly lower than in DM without LBBB and non-DM with LBBB (30 ± 10% vs 49 ± 12% and 47 ± 8%, P 〈 0.01). Left ventricular end-diastolic volume was significantly higher in DM with LBBB than in DM without LBBB and non-DM with LBBB (188.6 ± 16.4 mL vs 147.5 ± 22.3 mL and 165.3 ± 15.2 mL, P 〈 0.03). Similarly, left ventricular end-systolic volume was significantly higher in DM with LBBB than in DM without LBBB and non-DM with LBBB (135.4 ± 14.7 mL vs 83.7 ± 9.5 mL and 96.6 ± 18.4 mL, P 〈 0.02). No statistically significant difference was seen in left atrial size. Proteinurea in DM with LBBB (79.4 ± 18.9 mg/dL) was significantly higher than in DM without LBBB (35.6 ± 8.5 mg/dL, P 〈 0.05) and non-DM with LBBB (12 ± 3.5 mg/dL, P 〈 0.05); however, there was no significant difference in Hb A1c levels in DM with LBBB and DM without LBBB (9.01% vs 7.81%, P = NS). Conclusions: Left bundle branch block in diabetic patients indicates advanced cardiovascular involvement manifesting with more severe left ventricular systolic dysfunction and proteinurea compared to both diabetic patients without left bundle branch block and nondiabetic patients with left bundle branch block.

Electronic Resource

1089-7550

AIP Digital Archive

Physics

Bismuth-substituted magnetic garnet films, formulated so as to have a low magnetic quality factor Q, were grown from a bismuth-based melt using liquid-phase epitaxy. The lowest Q achieved was about 0.2. Such samples were observed to support parallel stripe domain structure and were theoretically predicted to have an "in-phase'' domain mode ferromagnetic resonance response at frequencies as low as 250 MHz. Such "in-phase'' resonances, along with the higher-frequency "out-of-phase'' mode, were observed experimentally with a variable radio frequency/fixed dc field ferromagnetic resonance spectrometer. The data, which were taken as a function of dc in-plane field, were found to be in good agreement with the theory.

Electronic Resource

1365-4632

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Electronic Resource

1365-4632

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Pyoderma Gangrenosum is a rare, ulcerative, necrotizing cutaneous disorder of unknown etiology.1 The lesions usually present as a painful nodule or pustule that breaks down to form a progressively enlarging ulcer with a raised tender, undermined edge.1 Pyoderma Gangrenosum was first described by Brunsting et al. in 1930,2 but the pathogenesis is still not clear. Local infection does not appear to be an etiologic factor even though Brunsting initially suggested this may be the cause.1–3 Its association with various autoimmune diseases and its response to immunosuppressive therapy suggests an immunologic basis for the disease.4,5 The characteristic feature of pyoderma gangrenosum is the development of lesions at sites of trauma: also known as pathergy phenomenon. Most cases of pyoderma gangrenosum occur mainly between the third and fifth decades of life, though disease can occur anytime between the first and ninth decades of life.6 We present a case of pyoderma gangrenosum in a 3-year-old boy, and review the features of pyoderma gangrenosum in children.

Electronic Resource

1467-9515

Blackwell Publishing Journal Backfiles 1879-2005

Political Science

Sociology

The paper sets out statutory social security arrangements in Korea and Singapore and then explains the differences between them. It finds that while Korea has a relatively advanced social security system based primarily on social insurance, Singapore has a patchwork of programmes based on forced saving, tax allowance, public assistance, and public insurance schemes run along commercial lines. Moreover, the increasing share of government expenditure devoted to social security in Korea stands in sharp contrast to the declining share in Singapore. The paper accounts for the variations in terms of the different economic objectives of the two states and the different international and societal constraints they face.In contrast to South Korea* which has rapidly established an elaborate set of income maintenance and health care programmes, Singapore continues to resist expansion of such programmes. The objective of this paper is to describe the social security programmes in the two countries and then explain why the supposedly similar political economies have pursued entirely different social security strategies. The paper will argue that to understand the variations, we need to examine the varying economic objectives of the two states and the different international and societal constraints they face.

Electronic Resource

1467-9515

Blackwell Publishing Journal Backfiles 1879-2005

Political Science

Sociology

This paper compares the health policies of Hong Kong, South Korea, Singapore and Taiwan with the purpose of drawing policy lessons. The study finds two distinct policy clusters: Hong Kong and Singapore on the one hand, and Korea and Taiwan on the other. With respect to provision of health care, the former rely largely on public hospitals for delivering inpatient care while the latter rely on private hospitals. In matters of financing, they are similar in that out-of-pocket is a major source of financing in all four countries. However, they are also different because Korea and Taiwan have universal health insurance while the city states do not. The study concludes that public provision of hospital care, as in Hong Kong and Singapore, yields more favourable outcomes than many mainstream economists would have us believe. Conversely, private provision in combination with social insurance, as found in Korea and Taiwan, severely undermines efforts to contain health care costs.

Electronic Resource

1745-4603

Blackwell Publishing Journal Backfiles 1879-2005

Process Engineering, Biotechnology, Nutrition Technology

Four varieties of rice having very high (29.4%) to low (17.6%) amylose-equivalent (AE) were parboiled by steaming at atmospheric (PB-O) and at 3 kg/cm2 (PB-3) gauge pressure. The cooked rice texture of the raw, PB-0 and PB-3 rice was determined by Viscoelastographe. Gel permeation chromatography of rice flour starch on Sepharose CL-2B, in general, indicated thermal breakdown of starch. The extent of starch breakdown and the firmness values of cooked PB-0 and PB-3 rices were reasonably well correlated suggesting that starch breakdown during parboiling may have some role to play in varying the texture of rice by parboiling. The chain profile of rice starch remained unaltered after parboiling.

Electronic Resource

1089-7550

AIP Digital Archive

Physics

Interactions between the domain wall resonance mode (DWR) and the domain ferromagnetic resonance modes ω− and ω+ were observed for the first time in unsaturated Ga- and La-doped thin YIG films. The samples were around 10 μm thick, their 4πM ranged from 1470 to 525 G, uniaxial anisotropy field ranged between 400 and 800 Oe and the in-plane saturation field was between 110 and 690 Oe. A transmission rf spectrometer using a slotted rf structure in the 10–2500 MHz range was used to observe the signals. The zero in-plane field DWR frequencies were an order of magnitude higher than those of typical bubble materials and ω+ and ω− fell in the same frequency-field regime as the DWR. The interactions between the modes resulted in frequency gaps of 70–500 MHz for the DWR-ω− modes and 200–10 MHz for the DWR-ω+ modes. A generalized theory of dynamics of a system of domains and domain walls is proposed. The results of the theory, which predicts a coupling of the form hc sin 2θ between DWR and ω−, are discussed.

Electronic Resource

1089-7550

AIP Digital Archive

Physics

Magnetic garnet films with large, negative and nearly equal magnetostriction coefficients along [111] and [100], supporting submicrometer diameter bubbles were grown using the liquid-phase epitaxy technique. Such isotropic magnetostriction was achieved by incorporating dysprosium ions in the dodecahedral sites. Bismuth was also included in these films to provide the essential uniaxial anisotropy and fine tuning of the magnetostriction coefficients. The effect of growth conditions such as the growth temperature and the melt composition on the magnetostriction coefficients is discussed. Ion-implanted contiguous disk devices fabricated using such films are shown to exhibit similar margins for the "good'' and "bad'' propagation directions.

Electronic Resource

1365-4632

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

A 24-year-old man was referred to our department with history of a pale red raised lesion over the right side of the face with impaired sensation of 3 months’ duration. He also had generalized weakness and increased thirst for the past 1 month. He had been treated with multidrug therapy for leprosy for 3 months and oral prednisolone for 1 month by his general practitioner. He also presented with a history of multiple sexual exposures with commercial sex workers and an ulcer over the penis 2 years ago, which healed spontaneously.

Electronic Resource

1365-4632

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Abstract Background  Warts are a common chronic skin disorder that can be cosmetically disfiguring and, depending on the location, cause inhibition of function. The presence of dozens of topical and systemic treatments for warts is a testament to the lack of a rapid, simple, uniformly effective, inexpensive, nonscarring, and painless treatment.Aim  The purpose of this study was to determine the efficacy and safety of 85% formic acid application, an inexpensive therapy, for the treatment of warts.Methods  A placebo-controlled, nonrandomized, open trial was performed in 100 patients with common warts attending Father Muller's Medical College Hospital, Mangalore. Fifty patients received 85% formic acid application and 50 patients received placebo (water) using a topical application/needle puncture technique every other day.Results  Ninety-two per cent of patients who received formic acid application showed complete disappearance of warts after a 3–4-week treatment period, compared to 6% in the placebo group.Conclusions  The results show that 85% formic acid application is a safe, economical, and effective alternative in the treatment of common warts with few side-effects and good compliance. A multicenter trial is needed to examine the efficacy and safety of this treatment.

Electronic Resource

0040-4020

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Chemistry and Pharmacology

Electronic Resource

0040-4020

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Chemistry and Pharmacology

Electronic Resource