3,555 research outputs found
A study of prevalence of thyroid disorders in patients with abnormal uterine bleeding
Background: Thyroid gland is the most vital endocrine organ which plays a major role in growth, development, metabolism and function of almost every organ of our body. Both hypothyroidism and hyperthyroidism can result in menstrual irregularities. Abnormal Uterine Bleeding (AUB) is one of the most common, yet complicated clinical presentation. It occurs in 10-20% of women between 15-50 years of age. Timely detection of thyroid dysfunction in patients presenting with AUB and their proper management can prevent unnecessary surgical interventions. This study was done to analyze the prevalence of thyroid dysfunction in patients with AUB and also to look for different menstrual patterns associated with thyroid dysfunction.Methods: This is a prospective study conducted at Department of Obstetrics and Gynecology, Government Medical College, Manjeri, Kerala, India. Total 200 patients were recruited into present study after satisfying all inclusion and exclusion criteria. Complete history was taken followed by a thorough examination. Baseline investigations and T3, T4, TSH was performed in all patients. Results were analyzed.Results: As per present study, majority of the patients with AUB were from the age group of 35-49 years (43%). In patients with AUB with thyroid dysfunction, prevalence of subclinical hypothyroidism was most common followed by hypothyroidism. According to our study thyroid dysfunction was most commonly seen in the age group of 35-49 years, and the most common presentation being menorrhagia.Conclusions: Timely diagnosis and proper management of thyroid dysfunction in women with AUB can avoid variety of non-specific and ineffective diagnostic and therapeutic procedures
Accurate Biometric Palm Print Recognition Using ResNet50 algorithm Over X Gradient Boosting Algorithm
The aim of this research is to enhance the accuracy of biometric palm print identification by using the Novel ResNet50 Algorithm as compared to the X Gradient Boosting. Materials and Methods: In this study, the ResNet50 and X Gradient Boosting algorithms were compared using a sample size of 10 for each algorithm, resulting in a total sample size of 20. The comparison was carried out with a G Power of 0.8 and a confidence interval (CI) of 95% to ensure statistical significance. For this study the Birjand University Mobile Palmprint Database (BMPD) dataset was collected from the Kaggle repository, which includes a total of 1640 images containing both left and right-hand palmprints. Result: According to the results, the ResNet50 algorithm achieved a higher accuracy rate (94.7%) compared to the X Gradient Boosting algorithm (92.4%) in identifying and measuring the images. The statistical analysis indicated a significant difference between the Novel ResNet50 algorithm and X Gradient Boosting, with a pvalue of 0.003 (Independent sample T-test p<0.05). This suggests that the ResNet50 algorithm outperformed the X Gradient Boosting algorithm in this experiment. According to the study’s findings, ResNet50 is more effective in accurately identifying biometric palm prints compared to X Gradient Boosting
Solid Wastes Recyling through Sinter-Status at Tata Steel
Integrated steel plants generate several by-products rich in iron, flux and fuel values, categorised as waste. These by-products contain, besides mineral values, hazar-dous constituents causing damages to the environment. The environmental quality consciousness, the product cost competitiveness and high mineral values of these wastes have resulted in attempts to recyle these materials. Recycling recovers the mineral values, preserves the dec-reasing natural resources and deteriorating environment and eliminates the disposal cost. Sinter plant provides an avenue for recycling of these wastes. Recycling decreases the cost of sinter and hence the cost of steel produced. Present paper outlines the status of waste generation, their characteristics, and the quantity being recycled via the sinter plant at Tata Steel.Furthermore, it highlights the problems, which restricts its further recycling and
discusses its influence on cost and quality of sinter
Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics
We report the polarization, displacement current and leakage current behavior
of a trivalent nonpolar cation Al cation substituted lead free ferroelectric
NBT-BT electroceramics with tetragonal phase and P4mm space group symmetry.
Nearly three orders of magnitude decrease in leakage current were observed
under electrical poling, which significantly improves microstructure,
polarization, and displacement current. Effective poling neutralizes the domain
pinning, traps charges at grain boundaries and fills oxygen vacancies with free
charge carriers in matrix, thus saturated macroscopic polarization in contrast
to that in upoled samples. E-poling changes bananas type polarization loops to
real ferroelectric loops.Comment: 18 pages, 5 figure
Structural, electrical, magnetic and thermal studies of Cr-doped La0.7Ca0.3Mn1-xCrxO3 for x = 0.0 to 1.0 manganites
We report detailed structural, electrical, magnetic and specific heat studies
on La0.7Ca0.3Mn1-xCrxO3 manganites. Rietveld analysis of fitted and observed
XRD patterns exhibited the single-phase nature of all the studied materials,
which crystallize in Pbnm space group. Successive substitution of Cr at Mn site
in La0.7Ca0.3Mn1-xCrxO3 manganites increases the electrical resistivity and
decrease the characteristic insulator-metal transition temperature (TIM) of the
parent compound along with a hump like feature for higher Cr-content samples.
The hump structure basically signifies the onset of anti-ferromagnetic (AFM)
interactions as inferred by both the magnetic and infra-red (IR) spectroscopy
studies. The systematic suppression of FM state results in a spin glass (SG)
like behavior. IR studies revealed that the vibration mode at 413 cm-1 being
associated with internal bending of MnO6 octehedra, becomes softer, indicating
an increase in distortion and hence the possible spin glass behavior. The
critical exponents alpha, beta and gama are calculated from the heat capacity
(CP) data near the TIM/TFM. The same exhibited variations of their values with
doping. In particular the value of beta increases from 0.37 to 0.43, clearly
indicating the coexistence of both long and short range magnetic orders i.e.
tendency towards SG state for Cr doped samples. On the basis of present
results, it is suggested that Cr dilutes double-exchange (DE) based FM and
rather promotes the AFM based super exchange interactions (SE) via Cr3+/Mn4+
ions. Substitution of Cr systematically destroys both the metallic state and
long range ferromagnetic (FM) order.Comment: 24 pages Text + Figs:
comments/suggestions([email protected]
A prospective randomised open labelled comparative study of anti inflammatory effects of topical 5% benzoyl peroxide gel vs topical 4% nicotinamide gel for grade I-II acne in a tertiary care hospital
Background: Acne vulgaris is a dermatological disorder characterised by formation of comedones and inflammatory lesions. The treatment of acne basically involves reduction of lesions. Benzoyl peroxide, in concentrations of 5%, 10%, and 20%, has been used effectively in the treatment of acne for more than 20 years. Nicotinamide/ Niacinamide is a newly-approved anti-acne drug with a potent anti-inflammatory effect. The present study assessed the efficacy of 5% Benzoyl peroxide gel in comparison to 4% Nicotinamide gel for topical treatment of mild to moderate acne vulgaris.Methods: In this study, the patients with mild to moderate acne vulgaris with inflammation were divided into two groups, group I was treated with topical 5% Benzoyl peroxide gel whereas topical Nicotinamide gel was given to the group II. Assessment of efficacy was done by total lesion counting according acne global severity index, the results were compared at the end of 2 weeks and 4 weeks with the baseline values.Results: At the end of this study, it was found that the reduction of inflammatory and total percentage of decrease in counts of lesions from baseline were highly significant in both the groups (p<0.001), between the groups, differences were statistically significant (p<0.001), therefore 5% Benzoyl peroxide gel has better efficacy than 4% Nicotinamide gel.Conclusions: Benzoyl peroxide is more efficacious than 4 % Nicotinamide gel in mild to moderate acne
Repair of aortoesophageal fistula due to a penetrating atherosclerotic ulcer of the descending thoracic aorta and literature review
Penetrating atherosclerotic ulcer rupturing into the esophagus is rare and the resulting aortoesophageal fistula carries a high mortality. In view of the emergency nature of the entity and complexity of the procedure management of such a condition is not standardized. The immediate concern is to save the patient from life threatening exsanguinations. Contrary to the practice hitherto followed no active surgical intervention was carried out for the esophageal lesion and cardiopulmonary bypass support was not employed. We present a case of rupture of a penetrating atherosclerotic ulcer of descending thoracic aorta, where in an emergency surgery was performed and the patient is doing well 21 months later
Performance of A1, A2, A3, A4(M), A4(G) and A4(VZM) cytoplasms based iso-nuclear sorghum hybrids for shoot fly resistance across-rainy and post-rainy seasons
Breeding for resistance to sorghum shoot fly in A1 CMS
system has been only partially successful. To compare the
alternate Cytoplasmic Male Sterility (CMS) systems for
shoot fly resistance, 72 hybrids produced by crossing 36
A-lines carrying six diverse cytoplasms namely, A1, A2, A3,
A4(M), A4(G), A4(VZM), each in six nuclear backgrounds with
two common fertility restorers. The hybrids were evaluated
during 2006 and 2007 rainy and post rainy seasons in shoot
fly screening trials at ICRISAT. ANOVA indicated absence
of overall cytoplasmic influence on dead hearts%. The
general (GCA) and specific combining ability (SCA)
estimates suggested that inheritance for deadhearts was
governed by additive-type of gene action. For GCA effects,
the A2 and A4(M) cytoplasms and for SCA effects, the A4(G)
and A4(M) cytoplasms were superior over other cytoplasms.
Overall, the A4(M) cytoplasm seemed to contribute to shoot
fly resistance in hybrid combinations. However, use of all
the six alternate cytoplasms should not increase the risk of
shoot fly in commercial grain production
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