检索结果-南通市图书馆

Characterization of Electrical Behavior of Ba5HoTi3V7O30Ceramic Using Impedance Analysis

引用

Materials Sciences and Applications 2012年第6期3卷 390-397页

作者： Kiran Kathayat Anuradha Panigrahi Arvind Pandey susmita kar Department of Physics D.N. College Itanagar India Department of Physics North Eastern Regional Institute of Science & Technology Nirjuli India Department of Physics North Orissa University Baripada India

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.

关键词： Ceramics X-Ray Diffraction Impedance Spectroscopy Electrical Properties

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Correlation of Hormonal Receptors Estrogen Receptor, Progesterone Receptor and Her-2/Neu with Tumor Characteristics in Breast Carcinoma: Study of 100 Consecutive Cases

引用

International Journal of Clinical Medicine 2015年第12期6卷 961-966页

作者： Priyadarshini Biswal susmita Behera Asaranti kar Dilleswari Pradhan Pradeep Kumar Behera Subrat Burma Chandraprava Mishra Department of Pathology S.C.B. Medical College Cuttack India

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.

关键词： Breast Carcinoma Estrogen Receptor (ER) Progesterone Receptor (PR) Her-2/Neu Immunohistochemistry

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Autopsy Findings in a Case of Ellis Van Creveld Syndrome with Review of Literature

引用

International Journal of Clinical Medicine 2014年第14期5卷 851-854页

作者： Asaranti kar Dilleswari Pradhan Jagannath Pahi Mrunmayee Patra Pranati Mohanty Gayatri Rath susmita Behera Department of Pathology S.C.B. Medical College Cuttack India

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.

关键词： Ellis Van Creveld Syndrome Perinatal Autopsy Polydactyly

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：