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Search Results: 1 - 10 of 1123 matches for " Susmita Kar "
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Characterization of Electrical Behavior of Ba5HoTi3V7O30 Ceramic Using Impedance Analysis  [PDF]
Kiran Kathayat, Anuradha Panigrahi, Arvind Pandey, Susmita Kar
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.36056
Abstract: Polycrystalline sample of Ba5HoTi3V7O30 was prepared using solid-state reaction technique. X-ray structural analysis indicated a single-phase formation with orthorhombic structure. Microstructural study by SEM showed non-uniform distribution of grains over the surface of the sample. Impedance and modulus spectroscopy studies were carried out, as functions of frequency (42 Hz - 5 MHz) and temperature (RT-773K). The Nyquist plots clearly showed the presence of both bulk and grain boundary effect in the compound. Electrical phenomena in the material can appropriately be modeled in terms of an equivalent circuit with R, C and CPE in parallel. The fitting procedure used here allows us to determine the value of R and C with good precision. Here R2 and R3 correspond to the resistance contributed from the grain boundary and bulk, respectively. C1 and C2 correspond to the capacitance contributed from the grain boundary and bulk, respectively. The real part of electrical modulus shows that the material is highly capacitive. The asymmetric peak of the imaginary part of electric modulus M″, predicts a non Debye type relaxation. The activation energy of the compound (calculated both from impedance and modulus spectrum) is same, and hence the relaxation process may be attributed to the same type of charge carriers.
Autopsy Findings in a Case of Ellis Van Creveld Syndrome with Review of Literature  [PDF]
Asaranti Kar, Dilleswari Pradhan, Jagannath Pahi, Mrunmayee Patra, Pranati Mohanty, Gayatri Rath, Susmita Behera
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.514114
Abstract:

Ellis Van Creveld (EVC) syndrome is one of the congenital anomalies not compatible with life. It is also known as chondroectodermal dysplasia. The most common manifestations of this syndrome are short ribs, postaxial polydactyly, growth retardation, and ectodermal and cardiac defects. It has an incidence of one in every 60,000 live births and equal sex predisposition. In our case, perinatal autopsy was performed in a stillborn baby of 32 weeks of gestation having syndactyly, polydactyly and short forearms to know the cause of death and the diagnosis emerged as EVC syndrome. It is important to diagnose EVC syndrome as it is transmitted as an autosomal recessive disorder, so genetic counseling is required to make parents aware of the risk of recurrence.

Correlation of Hormonal Receptors Estrogen Receptor, Progesterone Receptor and Her-2/Neu with Tumor Characteristics in Breast Carcinoma: Study of 100 Consecutive Cases  [PDF]
Priyadarshini Biswal, Susmita Behera, Asaranti Kar, Dilleswari Pradhan, Pradeep Kumar Behera, Subrat Burma, Chandraprava Mishra
International Journal of Clinical Medicine (IJCM) , 2015, DOI: 10.4236/ijcm.2015.612126
Abstract: Introduction-Breast cancer is the most common cancer and leading cause of death in women. In India, its incidence is rapidly rising over last few decades. Present study is aimed to study the pattern of expression of hormonal receptors and Her-2/neu in invasive breast carcinoma and to correlate estrogen receptor (ER), progesterone receptor (PR) and Her-2/neu expressions with various clinicopathological parameters. Material and methods: The present study was carried out in Department of Pathology, S.C.B. Medical College, Cuttack in the year 2013 taking consecutive 100 cases. Routine H&E staining for histological diagnosis and IHC analysis for ER, PR and Her 2/neu was carried out in all 100 cases of breast malignancies. Results: 99% of cases are invasive breast carcinoma, not otherwise specify (IDC-NOS). The age ranges from 23 years to 72 years. Majority of tumors are of grade 2 (70%) followed by grade 3 (30%). ER PR and Her-2/neu expression are seen in 45%, 35% and 30% respectively. Triple negative cases comprise 35%. Higher number of grade 2 tumor shows ER, PR positivity as compared to grade 3 tumors. Her-2/neu expression does not show any significant correlation with age or lymph node status of the patient. Conclusion: ER and PR expression in breast cancers in the current study are found to be comparable to the findings of other authors, but the frequency of HER-2/neu expression is slightly higher. Significant correlation is observed between hormonal receptor status and the grade of the tumor. Inverse relationship is found between Her-2/neu expression and ER, PR receptor status. Her-2/neu expression is increased with size and high grade of tumor.
Manypolaron system in the Fractional Dimensional Space within Plasmon Pole Approximatiion
Krushna Mohan Mohapatra,Birendra Kumar Panda,Susmita Kar
Physics , 2014,
Abstract: The polaron binding energy and effective mass in a degenerate polar gas is calculated in the fractional-dimensional approach under plasmon pole approximation.The effect of carrier densities on the static and dynamic screening correction of the electron-phonon interaction and electron-electron interaction to the polaronic propertis is calculated from electron self-energies within the second-order perturbation method. The Hubbard local field factor has been used for the static screening correction in the polaronic properties. We found that polaronic properties decrease with increase with carrier density and dimensionality of the system.
Autopsy Findings in Conjoined Twin with Single Heart and Single Liver
Kar Asaranti,Mohanty Pranati,Kar Tushar,Behera Jagadish,Behera Susmita,Nayak Amarendra
Case Reports in Pathology , 2012, DOI: 10.1155/2012/129323
Abstract: Thoracoomphalopagus is the commonest type of conjoined twin where the bodies are fused from upper chest to lower chest. The autopsy done can help counsil the parents for further pregnancies and determine the prognosis depending upon the type of cardiac anomaly by Seo classification when detected antenatally. We describe the detail pathological autopsy of such a case with single heart and single liver. A detail autopsy was done on the twin fetus. The twins shared a single heart and sometimes the liver and part of digestive system. The combined weight was 4.1 KG. Both were full-term male babies joined from below the nipple till umbilicus. Autopsy in conjoined twins helps in deciding the type of fusion of the body and also of the heart and great vessels. It can help in counseling parents about future pregnancies that there is no chance of recurrence of this abnormality and no need to be scared.
Autopsy Findings in Conjoined Twin with Single Heart and Single Liver
Kar Asaranti,Mohanty Pranati,Kar Tushar,Behera Jagadish,Behera Susmita,Nayak Amarendra
Case Reports in Pathology , 2012, DOI: 10.1155/2012/129323
Abstract: Thoracoomphalopagus is the commonest type of conjoined twin where the bodies are fused from upper chest to lower chest. The autopsy done can help counsil the parents for further pregnancies and determine the prognosis depending upon the type of cardiac anomaly by Seo classification when detected antenatally. We describe the detail pathological autopsy of such a case with single heart and single liver. A detail autopsy was done on the twin fetus. The twins shared a single heart and sometimes the liver and part of digestive system. The combined weight was 4.1?KG. Both were full-term male babies joined from below the nipple till umbilicus. Autopsy in conjoined twins helps in deciding the type of fusion of the body and also of the heart and great vessels. It can help in counseling parents about future pregnancies that there is no chance of recurrence of this abnormality and no need to be scared. 1. Introduction In conjoined twin, a rare anomaly refers to an incomplete splitting of monozygotic twins after 12 days of embryogenesis. It is seen in 10.25 per million births. 75% of them occur in females [1]. They are classified according to the point of union; the label used is the Greek word pagus, which means “that which is fixed.” The most common varieties encountered were thoracoomphalopagus (28%), thoracopagus (18.5%), omphalopagus (10%), parasitic twins (10%) and craniopagus (6%) [2]. Thoracoomphalopagus is a variety of conjoined twins where two bodies are fused from upper chest to the lower chest. They usually share a heart and sometimes the liver and part of digestive system. The condition is more frequently found among females, with a ratio of 3?:?1. We present the autopsy findings in a case of thoracoomphalopagus who were males. 2. Case History A 32-year-old multigravida, P3L2 with gestational age of 35 weeks presented in labour with pain abdomen for 6 hours and show bloody vaginal discharge. She did not have any antenatal checkups and she could not appreciate fetal movements for last two days. After admission to labour room, pervaginum-examination was done. Cervix was fully effaced, fully dilated, and head was palpated. After half an hour she delivered the twin vaginally. Both were still born. A detail pathological autopsy was done. The combined weight was 4.1?KG. Both were full-term male babies joined from below the nipple till umbilicus (Figure 1). Placenta was single weighing 750?gms. One umbilical cord was shared by both. It had one artery and four veins (Figure 2). Nipples were separate, meconium was present, and signs of maceration were seen.
Modified NSGA-II for a Bi-Objective Job Sequencing Problem  [PDF]
Susmita Bandyopadhyay
Intelligent Information Management (IIM) , 2012, DOI: 10.4236/iim.2012.46036
Abstract: This paper proposes a better modified version of a well-known Multi-Objective Evolutionary Algorithm (MOEA) known as Non-dominated Sorting Genetic Algorithm-II (NSGA-II). The proposed algorithm contains a new mutation algorithm and has been applied on a bi-objective job sequencing problem. The objectives are the minimization of total weighted tardiness and the minimization of the deterioration cost. The results of the proposed algorithm have been compared with those of original NSGA-II. The comparison of the results shows that the modified NSGA-II performs better than the original NSGA-II.
Comparison of Amino Acid Sequences of Halloween Genes in Spodoptera litura and Spodoptera littoralis  [PDF]
Susmita Chatterjee
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.65054
Abstract:

20-Hydroxyecdyone (20E), an active form of ecdysteroid, is the key hormone in insect growth and development. To date five P450 enzymes involved in the last four steps of ecdysteroid biosynthesis from ketodiol to 20E namely Spook (Spo), Phantom (Phm), Disembodied (Dib), Shadow (Sad) and Shade (Shd) related to ecdysteroid biosynthesis, are identified and the character of last four enzymes is well studied in Drosophila melanogaster, Bombyx mori and Manduca sexta. All of these genes are called Halloween genes. In this study, we extended these works to a major pest insect in agriculture in India, the cotton leafworm Spodoptera litura (Lepidoptera: Noctuidae). We identified the sequence of five Halloween genes partially and converted into amino acid sequences and then three of them were compared with a very near African species of Spodoptera, Spodoptera littoralis. The results suggest amino acid substitution in open reading frame of phantom, shade and disembodied protein in Spodoptera litura.

Hierarchical Analysis of Variation in the Mitochondrial 16SrRNA Gene among Five Different Insect Orders  [PDF]
Chatterjee Susmita
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.611132
Abstract: Nucleotide sequences from a 500 bp region of the 16SrRNA gene were analyzed for ten insect pests of five different orders to examine the patterns of variation within the gene fragment and the taxonomic levels for which it showed maximum utility in phylogeny estimation. A hierarchical approach was adopted in the study through comparison of levels of sequence variation among taxa at different taxonomic levels. Among them, partial 16SrRNA gene was amplified in ten insects of five different orders. As previously reported for many holometabolous insects, the 16SrRNA gene data is reported here for 5 different orders were highly AT-rich and exhibited strong site-to-site variation in substitution rate. The partial 16SrRNA genes of five out of ten insects were reported first time. Primers were made from blasting 2 different genera of the order Diptera. These primers were proven to be universal as it amplified the partial 16SrRNA gene in ten different insects across five different orders, Diptera, Coleoptera, Heteroptera, Lepidoptera and Hymenoptera. Later, a phylogenetic tree was also constructed for understanding and analyzing the relation of above five orders. This study resulted in unusual findings which were as follows: All the species of Drosophila of order Diptera were evolutionary more closely related to Dysdercus koenigii of order Heteroptera than Bactrocera cucurbitae of Drosophilan order, Diptera in terms of partial 16SrRNA gene sequence. Similarly, Spodoptera litura and Helicoverpa armigera belonged to same family Noctuidae whereas Pieris brassicae belonged to family Pieridae. All belonged to order Lepidoptera. The results showed that Spodoptera litura in terms of partial 16SrRNA gene sequence was evolutionary more close to Pieris brassicae than Helicoverpa armigera.
Effect of Electron and/or Ion Nonthermality on Dust Acoustic Wave Propagation in a Complex Plasma in Presence of Positively Charged Dust Grains Generated by Secondary Electron Emission Process  [PDF]
Susmita Sarkar, Subrata Bhakta
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.71008
Abstract: In this paper we have developed a model to study the role of both electron and ion nonthermalities on dust acoustic wave propagation in a complex plasma in presence of positively charged dust grains. Secondary electron emission from dust grains has been considered as the source of positive dust charging. As secondary emission current depends on the flux of primary electrons, nonthermality of primary electrons changes the expression of secondary emission current from that of earlier work where primary electrons were thermal. Expression of nonthermal electron current flowing to the positively charged dust grains and consequently the expression of secondary electron current flowing out of the dust grains have been first time calculated in this paper, whereas the expression for nonthermal ion current flowing to the positively charged dust grains is present in existing literature. Dispersion relation of dust acoustic wave has been derived. From this dispersion relation real frequency and growth rate of the wave have been calculated. Results have been plotted for different strength of nonthermalities of electrons and ions.
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