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Search Results: 1 - 10 of 5922 matches for " Padmalatha Rao "
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Garcinia indica as an Environmentally Safe Corrosion Inhibitor for Aluminium in 0.5?M Phosphoric Acid
Deepa Prabhu,Padmalatha Rao
International Journal of Corrosion , 2013, DOI: 10.1155/2013/945143
Abstract: The Inhibitive and adsorption properties of aqueous extract of seeds of Garcinia indica extract (GIE) have been studied for corrosion control of aluminium in 0.5?M phosphoric acid solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques at to . The effects of inhibitor concentration on the inhibition action were investigated. Polarization measurements showed that the GIE acted as mixed inhibitor and the inhibitor molecules followed chemical adsorption on the surface of aluminium. The adsorption of GIE on metal surface obeyed Langmuir adsorption isotherm. The surface morphology of aluminium, in the absence and in the presence of GIE in 0.5?M phosphoric acid solution, was studied using scanning electron microscopy (SEM). Results obtained from both of the electrochemical techniques were in good agreement with each other. 1. Introduction Aluminium is the most commonly used metal in power transmission and the metallurgy of nonferrous metals due to its high-electrical conductivity, good working and forming properties, lightness, ease of recycling, low density, ductility, and high-mechanical strength [1, 2]. Aluminium and most of the aluminium alloys have good corrosion resistance towards natural atmosphere and other environments, because aluminium surfaces are covered with a natural oxide film. In the presence of aggressive environment the protective layer can be locally destroyed and corrosive attack takes place. Solutions of phosphoric acid are frequently employed for cleaning of aluminium [3] and in commercial preplating anodic oxidation and electropolishing of aluminium [4]. Phosphoric acid is most preferred for metal cleaning than hydrochloric [5] or sulphuric acid because of lower dissolution of metal in phosphoric acid medium. Even though dissolution rate of aluminium in phosphoric acid is lower, it is not at all negligible [6]. Therefore, it is necessary to use inhibitors for the corrosion of aluminium in phosphoric acid solution [7–10]. Among the numerous organic compounds that have been tested and are applied industrially as corrosion inhibitors, those that are nontoxic are now far more strategic than in the recent past [7–11]. In the past two decades the research in the field of green inhibitors has been addressed toward the goal of using cheap, effective molecules at low or zero environmental impact [12–18]. In an attempt to find corrosion inhibitors that are environmentally safe and readily available, there has been a growing trend in the use of natural products such as plants extracts as corrosion
STOCHASTIC MODELS FOR OPTIMAL DRUG ADMINISTRATION IN CANCER CHEMOTHERAPY
Tirupathi Rao. P,Srinivasa Rao. K,Padmalatha. K
International Journal of Engineering Science and Technology , 2010,
Abstract: Stochastic models play a prominent role in analysis and designing of processes at various places like, biological, physical, medical and other areas. One of the important areas of concentration in medical sciences is developing optimal operating strategies for drug administration in chronic diseases like, Cancer, TB, Leprosy etc. In this paper, we develop a suitable stochastic model for optimal drug administration in cancer chemotherapy problem. The analysis for drug administration period is discussed. The sensitivity of the model with respect to the parameters is also studied with numerical llustrations. Average time for mutant cell duration in the tumor during the drug administration and absence of drug spells are derived. This study is very much useful for health care takers.Developing software and automation of these models will make this work more user friendly.
Successful Pregnancy Outcome In Maternal Crigler Najjar Syndrome Type II
Shakuntala PN,Poornima M,Padmalatha VV,Shubha R Rao
Online Journal of Health & Allied Sciences , 2012,
Abstract: Estimated incidence of Crigler-Najjar syndrome(CNS) is 1 case per 1,000,000 births(1 million). The overall prevalence of CN syndrome is unknown, with only several hundred people reported to have this disease. It is interestingly very rare to encounter a pregnant adult women with congenital jaundice. Pregnancy in CN type II patients is a diagnostic and a therapeutic challenge because of the high risk of bilirubin encephalopathy with serious neurological damage as life-threatening complications for the fetus. To date 8 pregnancy outcome have been reported from 5 women and we report the6 woman with a successful 9 th pregnancy outcome. We have discussed detail history, presentation and management during pregnancy and care of the new born.
A Rare Case of Isolated torsion of Haematosalphinx Presenting as Acute Abdomen During Pregnancy
Shakuntala PN,Shubha R Rao,Poornima M,Padmalatha VV
Online Journal of Health & Allied Sciences , 2012,
Abstract: Isolated fallopian tubal torsion is a rare non obstetric cause for pain abdomen during pregnancy.We report a case of a 34 year old second gravida who presented with history of amennorrhoe of 7 months, colicky pain in the left iliac fossa , with 2 episodes of vomiting. A Trans vaginal scan revealed a left ovarian cyst. An emergency laparotomy was performed for suspected torsion or haemorrhage into an ovarian cyst. Surprisingly ovaries were normal and a congested and necrotic left tubal torsion with a tubal collection (haematosalphinx) was identified and a salpingectomy was then performed. The differential diagnosis is discussed and the literature is reviewed as it is a very rare clinical entity.
Paternally derived translocation t(8;18)(q22.1;q22)pat associated in a patient with developmental delay: Case report and review
Rao Lakshmi,Kanakavalli Murthy,Padmalatha Venkata,Nallari Pratibha
Journal of Pediatric Neurosciences , 2010,
Abstract: The common cause of mental impairment and the wide range of physical abnormalities is balanced chromosome rearrangement. As such, it is difficult to interpret, posing as a diagnostic challenge in human development. We present a unique familial case report with the paternally inherited autosomal-balanced reciprocal translocation involving chromosomal regions 8q and 18q. The etiology of the translocation, i.e. 46,XX,t(8;18)(q22.1;q22) was detected by conventional high-resolution Giemsa-Trypsin-Giemsa-banding and fluorescence in situ hybridization techniques. The father was found to be the carrier of the chromosome defect and also the same was observed in the first female child referred with a history of delayed milestone development. However, the second female child showed normal 46, XX karyotype. This is the first report of reciprocal translocation involving 8q and 18q associated with the delayed milestone development. The reason likely may be due to the rearrangement of genetic material at these breakpoints having a crucial relationship and thus manifesting developmental delay in the progeny. Accordingly, this paper also shows genetic counseling discussion for the cause.
Unique Case Reports Associated with Ovarian Failure: Necessity of Two Intact X Chromosomes
Lakshmi Rao Kandukuri,Venkata Padmalatha,Murthy Kanakavalli,Raseswari Turlapati,Mangalipally Swapna,Metuku Vidyadhari,Govindaraghavan Saranaya,Kattera Himaja,Mamata Deenadayal,Bipin Kumar Sethi,Prasun Deb,Nalini Gupta,Baidyanath Chakraborthy,Pratibha Nallari,Lalji Singh
Case Reports in Genetics , 2012, DOI: 10.1155/2012/640563
Abstract: Premature ovarian failure is defined as the loss of functional follicles below the age of 40 years and the incidence of this abnormality is 0.1% among the 30–40 years age group. Unexplained POF is clinically recognized as amenorrhoea (>6 months) with low level of oestrogen and raised level of Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH > 20 IU/l) occurring before the age of 40. It has been studied earlier that chromosomal defects can impair ovarian development and its function. Since there is paucity of data on chromosomal defects in Indian women, an attempt is made to carry out cytogenetic evaluation in patients with ovarian failure. Cytogenetic analysis of women with ovarian defects revealed the chromosome abnormalities to be associated with 14% of the cases analyzed. Interestingly, majority of the abnormalities involved the X-chromosome and we report two unique abnormalities, (46,XXdel(Xq21-22) and q28) and (mos,45XO/46,X
Unique Case Reports Associated with Ovarian Failure: Necessity of Two Intact X Chromosomes
Lakshmi Rao Kandukuri,Venkata Padmalatha,Murthy Kanakavalli,Raseswari Turlapati,Mangalipally Swapna,Metuku Vidyadhari,Govindaraghavan Saranaya,Kattera Himaja,Mamata Deenadayal,Bipin Kumar Sethi,Prasun Deb,Nalini Gupta,Baidyanath Chakraborthy,Pratibha Nallari,Lalji Singh
Case Reports in Genetics , 2012, DOI: 10.1155/2012/640563
Abstract: Premature ovarian failure is defined as the loss of functional follicles below the age of 40 years and the incidence of this abnormality is 0.1% among the 30–40 years age group. Unexplained POF is clinically recognized as amenorrhoea (>6 months) with low level of oestrogen and raised level of Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH > 20?IU/l) occurring before the age of 40. It has been studied earlier that chromosomal defects can impair ovarian development and its function. Since there is paucity of data on chromosomal defects in Indian women, an attempt is made to carry out cytogenetic evaluation in patients with ovarian failure. Cytogenetic analysis of women with ovarian defects revealed the chromosome abnormalities to be associated with 14% of the cases analyzed. Interestingly, majority of the abnormalities involved the X-chromosome and we report two unique abnormalities, (46,XXdel(Xq21-22) and q28) and (mos,45XO/46,X+ringX) involving X chromosome in association with ovarian failure. This study revealed novel X chromosome abnormalities associated with ovarian defects and these observations would be helpful in genetic counseling and apart from, infertility clinics using the information to decide suitable strategies to help such patients. 1. Introduction Ovarian failure reflects spectrum of symptoms, which include amenorrhea, gonadal dysgenesis, and premature ovarian failure (POF). Amenorrhea can be primary or secondary. POF is defined as the loss of functional follicles below the age of 40 years. The incidence of this abnormality is 0.1% among the 30–40 years age group. It keeps increasing and reaches up to 1% among the 40 years age group [1]. The diagnosis of unexplained POF is clinically recognized as amenorrhoea (>6 months) occurring before the age of 40 with low level of oestrogen and raised level of luteinizing hormone (LH) and follicle-stimulating hormone (FSH > 20?IU/l) [2]. Different rationales based on immunological abnormalities [3], viral infections [4], cytotoxic drugs [5], physical stress, nutrient deficiency, chemotherapy, and radiation effects [6] have been advanced to explain POF. The crucial factor also includes the important role of chromosomes in maintaining the normal ovarian development and function. It has been studied earlier that chromosomal defects can impair ovarian development and its function [7]. The most frequent phenotype associated with sex chromosomal defects is Turner’s syndrome in which there is only one X chromosome instead of two. Most of the women with primary amenorrhea possess Turner’s or
Chronic disseminated intravascular coagulation presenting as renal mass
Somashekhar Manjiri,Kadamba Padmalatha,Wakodkar Mugdha
Journal of Indian Association of Pediatric Surgeons , 2008,
Abstract: Disseminated intravascular coagulation (DIC) is a complex clinical syndrome, described as a sequential activation of the coagulation and fibrinolytic system. Trauma and sepsis are some of the known precipitating factors. We report a case of nonovert disseminated intravascular coagulation presenting as a huge renal mass in a 3-year-old child, suspected to be a Wilms′ tumor. On imaging studies, it was found to be a renal hematoma. Laboratory investigations revealed an underlying chronic disseminated intravascular coagulation caused by sepsis. The child recovered with conservative treatment; follow up investigations showed resolution of renal hematoma with renal function returning to base line. Clinical presentation of Chronic DIC is variable. Laboratory investigations usually help to diagnose the condition and also to monitor the progress of the treatment. The treatment of the triggering cause is the cornerstone of the management of this condition.
Rare Variant Origin of Right Testicular Artery - A Case Report
Y Mamatha, BS Prakash, K Padmalatha
Asian Journal of Medical Sciences , 2011, DOI: 10.3126/ajms.v2i1.3860
Abstract: Variations in the origin of arteries in the abdomen are very common but with the invention of new operative techniques within the abdomen cavity, the anatomy of abdomen vessels has assumed much more clinical importance. The gonadal arteries normally arise caudal to the renal arteries as antero-lateral branch. In contrast to classical description, very rarely originate from lumbar, common or internal iliac artery, or superior mesentric artery. Here we report a very rare case of variant origin of right testicular artery from right common iliac artery. Awareness of such variations becomes very significant and important during surgical or interventional procedures in abdomen-pelvic areas.
Utilisation of Green Synthesised Silver Nanoparticles for Water Quality Management  [PDF]
P. Dhasarathan, N. Reeshma Devi, P. Sangeetha, Suman Madhu G. Navaraj, A. J. A. Ranjitsingh, C. Padmalatha
Advances in Nanoparticles (ANP) , 2018, DOI: 10.4236/anp.2018.74007
Abstract: In the present study silver nanoparticles (AgNPs) were synthesized using leaves of bamboo plant, Bambus vulgaris and the size of the nanoparticles was confirmed using XRD, EDAX, SEM, TEM, PSA analysis. The antimicrobial activity of the synthesized NPs showed a good antibacterial activity against the waterborne isolates, E. coli, Staphyllococcus aureus, Vibrio cholera and Salmonella sp. Further the anti algal activity of the NPs was tested against the algae, Dictyosphaerium pulchellum, and Algoriphagus chordate. The SEM studies revealed that the AgNPs breaks the cell wall of algae and inhibits the growth. The safe dose of AgNPs can be used in aquaculture farms, household water tanks and other small water bodies to wipe out waterborne pathogens and algal bloom.
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