Raghavendra Rao

Sri Krishnadevaraya University | SKU · Department of Physics

Introduction Curriculum mapping provides a clear picture of curriculum content, learning opportunities, and assessment methods employed to measure the achievement of learning outcomes with their inter‐relationships. It facilitates educators and teachers to examine the extent to which the curricular components are linked and hence to find out gaps i...

Today most education institutions around the world have adopted the philosophy of outcome-based education. The emphasis in outcome-based education is achievement of outcomes; hence the curriculum should be designed in a way that it includes the components targeted specifically at achieving these outcomes. A discipline-based approach results in frag...

Objective: The American College of Surgeons/Association of Program Directors in Surgery is a comprehensive, simulation-based curriculum for General Surgery residents which exists in 3 phases. While phases 1 and 2 deal with core skills and advanced procedures respectively, phase 3 targets team-based skills. To date, the 3rd phase of this curriculum...

Objective Nontechnical skills are an essential component of surgical education and a major competency assessed by the ACGME milestones project. However, the optimal way to integrate nontechnical skills training into existing curricula and then objectively evaluate the outcome is still unknown. The aim of this study was to determine the effect lapar...

ABSTRACT Introduction: Proton Pump Inhibitors (PPIs) are arguably among the most commonly prescribed drugs in clinical practice, either as part of treatment or prophylaxis. Many clinicians prescribe these drugs as part of any prescription, without a proper rationale. Recent studies done outside India have shown that these drugs are not entirely saf...

ABSTRACT Introduction: Proton Pump Inhibitors (PPIs) are arguably among the most commonly prescribed drugs in clinical practice, either as part of treatment or prophylaxis. Many clinicians prescribe these drugs as part of any prescription, without a proper rationale. Recent studies done outside India have shown that these drugs are not entirely saf...

Objective: To systematically review the literature surrounding operating room-based in situ training in surgery. Methods: A systematic review was conducted of MEDLINE. The review was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology, and employed the Population, Intervention, Comparato...

Measurement and control of pressure and temperature play an important role in different fields of Science and Technology. Also, it becomes essential to monitor the real-time weather condition of one place to another place. In this paper, we present the Cloud-Based monitoring and measurement of pressure and temperature using CC3200. CC3200 is the fi...

Introduction: Paraquat is a commonly ingested poison especially in Southern India. There is no antidote for paraquat poison and consumption is often fatal. The usual cause of death is either acute lung injury or multi-organ failure. Aim: To evaluate the role of early haemoperfusion as a therapy in paraquat poisoned patients. Materials and metho...

Objectives: This investigation focused on finding the changes in learning approaches of students’ while experiencing physiology curriculum and to explore the reflection of changes if any, on their critical thinking skills. Methods: In this longitudinal study, information on students’ learning approaches was obtained using the revised two factor stu...

Nocardia species can cause fulminant necrotizing cavitary pneumonia. Diagnosis involves identification of the organism, speciation, and correlating with appropriate clinical and radiological findings. Speciation is often difficult due to the complexities involved in culturing the organism. Treatment involves administering antibiotics for a prolonge...

Objectives: Angular and linear velocity measurements play an important role in monitoring and controlling the speed of motors used in applications such as conveyors, turbines, robots, automobiles and other moving objects. In the present paper, an inexpensive and portable system for the measurement of rotations per minute (RPM), linear and angular v...

Objectives: In this paper we present the design and development of an embedded system for the measurement of Boltzmann's constant using Texas Instruments' microcontroller: MSP430G2553. Methods/Statistical Analysis: A transistor connected in common-base configuration with collector and base maintained at the same voltage (known as diode connected tr...

Objectives: Soil moisture information plays an important role in environmental monitoring, agricultural production and hydrological studies. Particularly, agricultural yield depends on several growing parameters like temperature, humidity, soil moisture and pH of the soil, etc. In this paper, we have designed and developed a system for measuring an...

Objective: The purpose of this study was to understand the effect of a team-based surgical skills intervention on the technical and nontechnical skills of surgery residents. Design: This was a prospective cohort study with pretesting or posttesting. We designed basic tasks for the assessment and learning of nontechnical skills in the operating r...

This paper presents a simple instrumentation design built around one of the 8051 family microcontroller to measure instantaneous wind speed and wind direction. This system includes an improved, yet an inexpensive cup anemometer: Davis Instruments 6410 to sense the above said two wind parameters. The accuracy of the processing system is estimated pr...

The most common presentations of Sjogren’s syndrome include dryness of eyes, oral cavity, and features of systemic scleroderma. When a patient walks in with such classical features, it becomes easy for the clinician to diagnose and treat the patient. However, Sjogren’s syndrome may present atypically as experienced in the present case. Here, the au...

This study was undertaken to assess the less-known association between subclinical hypothyroidism and severity of diabetic retinopathy in patients with type 2 diabetes mellitus. Among 35 diabetic patients who were subclinically hypothyroid, 20 (57.1%) had retinopathy as compared to 21 patients (30%) in the euthyroid group, which was significant (p=...

Hypothyroidism is a condition caused due to decreased production of thyroid hormones. The clinical presentation of hypothyroidism depends on the severity of the thyroid hormone deficiency and the acuteness of its development, regardless of its cause. The diverse clinical manifestations of hypothyroidism occur due to- • Accumulation and deposition o...

Diastase/Pepsin combination supplements are very commonly prescribed in clinical practice, mainly in the adult population. The chief indication for such use is indigestion or dyspepsia, wherein concomitant medication with proton pump inhibitors and antiemetics is also advised. Hypersensitivity reactions, though theoretically plausible with the use...

Pulmonary tuberculosis is a common infection associated with immunocompromised state. It usually presents with fibrosis or fibrocavitary lesions in the lung. We report a case of bilateral tuberculous pneumonia of acute presentation in a young lady who was being treated for systemic lupus erythematosus.

Mixed mode BIST schemes use pseudo-random patterns to detect most faults. Theoretical analysis suggests that significantly more care bits can be encoded in the seed of a Linear Feedback Shift Register (LFSR). In this paper we implement low power BIST for 32-bit Vedic multiplier. Main aspect of this is to implement low power BIST with increased faul...

Reversible logic is playing an important role in research areas and has found its applications in low power CMOS VLSI, Nanotechnology and Quantum computation. Recently, several researchers have focused their efforts on the design and synthesis of efficient reversible logic circuits. LFSR’s are attractive structures in the area of digital system tes...

Antipsychotics are well known to affect prolactin secretion, resulting in hyperprolactinemia and its consequent manifestations like amenorrhoea, galactorrhoea, gynaecomastia, etc. Levosulpiride is a novel antipsychotic drug with additional antidepressant, antiemetic and antidyspeptic actions. The authors report a case of levosulpiride-induced hyper...

Phenytoin is the first line antiepileptic for generalized tonic-clonic seizures. It is still the “go to” drug despite the availability of newer anti-epileptics, chiefly because of its low cost and high efficacy. Phenytoin is associated with toxicities involving multiple organ systems such as brain, blood, and skin. One of the most common adverse ef...

Chorea is usually associated with neurological diseases. However, it can also be seen in patients with systemic lupus erythematosus (SLE), rheumatic fever (Sydenham's chorea), polycythemia vera, and thyrotoxicosis. Here, we report an interesting case of hemichorea in a 32-year-old lady, who presented with acute onset of jerky, non-repetitive involu...

Warfarin and acenocoumarol are commonly prescribed oral anticoagulant drugs that are used in the prevention and treatment of thromboembolic disorders across the world. Although both these drugs act by a similar mechanism, there are significant differences between them, especially in terms of their half-lives, and more importantly, in their variabil...

Measurement and control of humidity and temperature play an important role in different fields like Agriculture, Science, Engineering and Technology. Also, it becomes essential to monitor the real-time weather condition of one place from another place. In this paper, we present the design and development of CC3200-based Cloud IoT for measuring humi...

Chorea is usually associated with neurological diseases. However, it can also be seen in patients with systemic lupus erythematosus (SLE), rheumatic fever (Sydenham’s chorea), polycythemia vera, and thyrotoxicosis. Here, we report an interesting case of hemichorea in a 32-year-old lady, who presented with acute onset of jerky, non-repetitive involu...

Introduction: Postmenopausal bleeding (PMB) accounts for 5% of gynaecology presentations. Generally, 4 to 11 percent of postmenopausal women will experience bleeding. The aim of the study was to determine the causes of postmenopausal bleeding and to compare the transvaginal sonographic finding with the histopathological examination results. Materia...

Hydrocarbons are widely distributed in the environment in several compounds, most commonly in petroleum-related products. Butane is one such compound that is arguably one of the most common chemicals found in petroleum and related derivatives. Also, butane is said to be voluntarily inhaled by many for its euphoriant effect. Other than this voluntar...

Chronic constipation and fecal impaction are common problems in elderly patient. Drugs causing constipation can add on to it and rarely lead to fecalomas causing abdominal distention, which mimics an abdominal tumor. We present an unusual case of a 63yr old patient under psychiatric treatment for 15yrs, who developed fecaloma and was managed conser...

Nocardiosis is an opportunistic infection that affects the lungs most commonly. However, CNS manifestations form the major chunk of the extra-pulmonary cases. Since the infection can lead to serious and irreversible morbidity and mortality, early diagnosis and treatment are of prime importance. This case report highlights the typical presentation o...

Neem oil is a naturally occurring pesticide, found in seeds of the neem tree. It has been used for hundreds of years to control pests and diseases. Components of neem oil can be found in many modern products of today like toothpaste, cosmetics, soaps, and pet shampoos. People can be exposed to chemicals by eating them, breathing them in, through sk...

Strychnine poisoning has a very uncommon occurence. Strychnine, brucine and loganin constitue the active principles of Strychnine nux vomica. Nowadays the poisoning is most commonly due to adulteration with narcotics. Hereby we present a case of 23 year old male, who had consumed nux vomica seeds accidentally (made decoction and he drank it) and de...

Rhabdomyolysis is a clinical condition characterized by muscle necrosis and the release of intracellular muscle contents into systemic circulation there by leading to asymptomatic elevation of serum muscle enzymes, electrolyte imbalances, and acute renal failure. Hyponatremia is one of the commonest of electrolyte disorder. Hyponatremia causing rha...

Scrub typhus (Tsutsugamushi disease), is an acute febrile infectious disease endemic in eastern asia is caused by Orienta Tsutsugamushi, transmitted by bite of a Leptotrombidium mite (chigger). 45 year old lady presented with progressive worsening of fever (102F), myalgias, headache and tachycardia (120/min). Leucopenia with thrombocytopenia was no...

Bronchiectasis is a common respiratory disorder, which we come across in clinical practice. Patients with bronchiectasis are prone to infections, especially of Mycobacterium tuberculosis. However, non-tubercular Mycobacterial infections may also set in, though rare. Here, we report an unusual case of Mycobacterium avium complex infection in a case...

Introduction: Diabetes mellitus and thyroid diseases are two common endocrinopathies seen in the general population. The aim of the present study was to study the relation between thyroid dysfunction and diabetes mellitus among the diabetic patients attending Kasturba Hospital, Manipal. Materials and Methods: A retrospective case control study was...

The etiology of hypertension is multifactorial and is strongly associated with behavioral and multiple genetic factors. Despite these non-modifiable risk factors, the role of chronic stress and psychosocial factors like impaired social support, anxiety, depression contributing to the development of hypertension must always be considered. There is c...

Clonidine intolerance has been frequently reported in the last decade. However, in recent years, there has been a significant drop in reporting, both in developed as well as developing countries. Clonidine is a commonly used anti-hypertensive drug. It is a centrally acting alpha agonist. There have been reports of clonidine causing symptomatic brad...

Posterior apophyseal ring fracture is a rare condition typically seen in adolescent age group because the ring apophysis and the adjacent vertebral body does not fuse completely and may separate at the cephalad or caudal edge. It usually simulates disc herniation in adolescents and children but disc lesion is very commonly associated with PRAF. The...

Study design: Prospective consecutive series. Objective: To evaluate the efficacy of short segment instrumented fusion in thoracolumbar vertebral compression and burst fractures. Summary of Background Data: Traumatic thoracic and lumbar spine fractures have been managed by various options already described in literature beginning from non-operative...

It is usually assumed that a psoas abscess is tuberculous in etiology. A high index of clinical suspicion is required in the present clinical scenario with the increased incidence of various immunosuppressive conditions like HIV, post-transplant and malignancies. A case of advanced carcinoma of the cervix presenting as a psoas and inguinal abscess...

Self-directed learning is a potential methodology recommended in medical education to promote life-long learning. To promote self-directed learning skills and to make students life-long learners, self-directed learning sessions were conducted at Melaka Manipal Medical College (Manipal Campus), Manipal University, India. Students' knowledge in the t...

Thermal conductivity of polymers is an important property for both polymer applications and processing industry. The successful application of thermal insulating fluids in the last several years has demonstrated that such fluids can effectively control the heat loss. Understanding and controlling the thermal environment for oilfield operations has...

Kerf characteristics are important from the quality of cut point of view. The kerf characteristics are also changing with the profile of cutting. This paper presents parameter optimization of the kerf quality characteristics during pulsed Nd: YAG laser cutting of nickel based superalloy thin sheet. The kerf quality characteristics considered are ke...

This paper presents a hybrid optimization approach for the determination of the optimum laser cutting process parameters which minimize the kerf width, kerf taper, and kerf deviation together during pulsed Nd:YAG laser cutting of a thin sheet of nickel-based superalloy SUPERNI 718 (an equivalent grade to Inconel 718). A hybrid approach of Taguchi m...

The main objective of the present work was to develop sustained release matrix tablets of water soluble Tramadol hydrochloride using different polymers viz. Hydroxy propyl methyl cellulose (HPMC) and natural gums like Karaya gum (KG) and Carrageenan (CG). Varying ratios of drug and polymer like 1:1 and 1:2 were selected for the study. After fixing...

An inexpensive, indigenous and a simple electronic instrument based on voltage follower, currentto-voltage converter, zero crossing detector and a phase detector has been developed for measurement of a.c. conductivity. Real and imaginary parts of complex impedance are determined for a given sample as a function of frequency and the given sample is...

A completely stand‐alone multichannel scaler system which can be easily built using commercially available integrated circuits is described. The multichannel scaler is interfaced to an 8‐bit Intel‐8085 based microcomputer through a peripheral interface adapter (PIA) Intel 8255. The inherent data latching property of PIA is made use of in the presen...

Chlorthalidone is a phthalamide derivative of benzene sulphonamide and is designated as 2-chloro-5-(1-hydroxy-3-oxo-1-isoindolinyl) benzene sulphanilamide. It is white to yellowish crystalline powder. It is practically insoluble in water, slightly soluble in alcohol. In the present study fast disintegrating tablets of chlorthalidone were prepared b...

An attempt has been made for the development of rapidly disintegrating oral tablets by direct compression using co-grinding and solid dispersion methods by using chlorthalidone as a model drug. Chlorthalidone is a well known diuretic used in the treatment of hypertension and oedema. The half life of chlorthalidone is 40 hours. The major problem wit...