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Dolichoectasia of vertebrobasilar artery presenting as facial pain: a case report
Prasanna Vadhanan 대한치과마취과학회 2023 Journal of Dental Anesthesia and Pain Medicine Vol.23 No.4
Dolichoectasia of the intracranial arteries is a rare condition characterized by elongated and tortuous arteries due to progressive destruction of the vessel walls. Although most patients present with cerebrovascular accidents, our patient presented with intractable facial pain along the distribution of the trigeminal nerve. Clinical examination revealed involvement of the 5th, 7th, and 8th cranial nerves, and subsequent MRI showed dolichoectasia of the left basilar artery. The patient experienced symptomatic relief after a trial of carbamazepine along with botulinum toxin injections.
Prasanna Kumar Misra,S. Qureshi 대한전자공학회 2014 Journal of semiconductor technology and science Vol.14 No.3
In this paper, the epi layer of npn SOI HBT with n+ buried layer has been studied through Sentaurus process and device simulator. The doping value of the deposited epi layer has been varied for the npn HBT to achieve improved ftBVCEO product (397 GHzV). As the BVCEO value is higher for low value of epi layer doping, higher supply voltage can be used to increase the ft value of the HBT. At 1.8 V VCE, the ftBVCEO product of HBT is 465.5 GHzV. Further, the film thickness of the epi layer of the SOI HBT has been scaled for better performance (426.8 GHzV ftBVCEO product at 1.2 V VCE). The addition of this HBT module to fully depleted SOI CMOS technology would provide better solution for realizing wireless circuits and systems for 60 GHz short range communication and 77 GHz automotive radar applications. This SOI HBT together with SOI CMOS has potential for future high performance SOI BiCMOS technology.
A 32 nm NPN SOI HBT with Programmable Power Gain and 839 GHzV ftBVCEO Product
Prasanna Kumar Misra,S. Qureshi 대한전자공학회 2014 Journal of semiconductor technology and science Vol.14 No.6
The performance of npn SiGe HBT on thin film SOI is investigated at 32 nm technology node by applying body bias. An n-well is created underneath thin BOX to isolate the body biased SOI HBT from SOI CMOS. The results show that the HBT voltage gain and power gain can be programmed by applying body bias to the n-well. This HBT can be used in variable gain amplifiers that are widely used in the receiver chain of RF systems. The HBT is compatible with 32 nm FDSOI technology having 10 nm film thickness and 30 nm BOX thickness. As the breakdown voltage increases by applying the body bias, the SOI HBT with 3 V VCE has very high ftBVCEO product (839 GHzV). The self heating performance of the proposed SOI HBT is studied. The high voltage gain and power gain (60 dB) of this HBT will be useful in designing analog/RF systems which cannot be achieved using 32 nm SOI CMOS (usually voltage gain is in the range of 10-20 dB).
Prasanna Vadhanan 대한치과마취과학회 2022 Journal of Dental Anesthesia and Pain Medicine Vol.22 No.1
Persistent idiopathic facial pain is a rare and difficult condition to treat. Several pharmacological, non- pharmacological, and invasive treatment options have been used, with varying results. We report the case of a patient with intractable persistent idiopathic facial pain who responded favorably to a combination of botulinum toxin injections and pulsed radiofrequency treatment of the infraorbital nerve.
Diversity of Saurian fauna in the Buldhana district, Maharashtra, India
Prasanna S. Joshi,Vasudha T. Tantarpale 국립중앙과학관 2016 Journal of Asia-Pacific Biodiversity Vol.9 No.3
The present report provides knowledge about the diversity of Saurian fauna in the Buldhana district of the Indian state of Maharashtra as a model geographic area to promote conservation management. The presented study is based on the field work carried out in the study sites during February 2014 to January 2015. The study revealed the presence of 14 Saurian species belonging to 5 families dominated by Gekkonidae (43.05%), Scincidae (29.15%), Agamidae (21.35%), Varanidae (6.1%), and Chamaeleonidae (0.35%). The relative dominance of species varied with differentmonths, apparently indicating that the Buldhana district has a healthy environmental and demographic setup that accommodates rich Saurian diversity.
A 32 ㎚ NPN SOI HBT with Programmable Power Gain and 839 ㎓V f<SUB>t</SUB>BV<SUB>CEO</SUB> Product
Prasanna Kumar Misra,S. Qureshi 대한전자공학회 2014 Journal of semiconductor technology and science Vol.14 No.6
The performance of npn SiGe HBT on thin film SOI is investigated at 32 ㎚ technology node by applying body bias. An n-well is created underneath thin BOX to isolate the body biased SOI HBT from SOI CMOS. The results show that the HBT voltage gain and power gain can be programmed by applying body bias to the n-well. This HBT can be used in variable gain amplifiers that are widely used in the receiver chain of RF systems. The HBT is compatible with 32 ㎚ FDSOI technology having 10 ㎚ film thickness and 30 ㎚ BOX thickness. As the breakdown voltage increases by applying the body bias, the SOI HBT with 3 V VCE has very high ftBVCEO product (839 ㎓V). The self heating performance of the proposed SOI HBT is studied. The high voltage gain and power gain (60 ㏈) of this HBT will be useful in designing analog/RF systems which cannot be achieved using 32 ㎚ SOI CMOS (usually voltage gain is in the range of 10-20 ㏈).
Development of daily gridded rainfall dataset over the Ganga, Brahmaputra and Meghna river basins
Prasanna, Venkatraman,Subere, Juvy,Das, Dwijendra K.,Govindarajan, Srinivasan,Yasunari, Tetsuzo John Wiley Sons, Ltd 2014 Meteorological applications Vol.21 No.2
<P><B>Abstract</B></P><P>The India Meteorological Department (IMD) gridded rainfall dataset, the 47 Bangladesh gauge rainfall observations and the Tropical Rainfall Measuring Mission (TRMM) 3B42V6 satellite data are used in the present analysis. The nearest neighbour interpolation scheme is used, wherein the interpolated values are computed from a weighted sum of observations. The Bangladesh daily gauge measured rainfall is interpolated into regular grids of 0.5° × 0.5° resolution every day from January 1988 to December 2007 and appended with the daily gridded dataset of the IMD over the Indian region. A similar resolution dataset of 0.5° × 0.5° for the TRMM‐3B42V6 data from January 1998 to December 2007 is created from the original data of 0.25° × 0.25° resolution. To produce a merged rainfall product, all the gridded datasets are merged. The merging of datasets is done in such a way as to include the highest rainfall at each grid point from the three products. Based on the three available sets of daily observations (IMD dataset (1° × 1°), TRMM‐3B42 (0.25° × 0.25°) and 46 daily station observations over Bangladesh), a dataset of 0.5° × 0.5° resolution on a daily scale is generated. The focus of this study is to compare the TRMM‐3B42V6 rainfall data over the Ganga, Brahmaputra and Meghna (GBM) domain with observed point gauge data, and assess the possibility of using them for application in real time flood forecasting as well as to serve as a comparison tool for the baseline simulation of high resolution atmospheric models aimed at flood forecasting and climate change projections. Copyright © 2012 Royal Meteorological Society</P>
Dense Granule Protein-7 (GRA-7) of Toxoplasma gondii inhibits viral replication in vitro and in vivo
Prasanna Weeratunga,틸리나,김태환,이현철,김재훈,이병훈,이은서,Kiramage Chathuranga,W. A. Gayan Chathuranga,양철수,마진열,이종수 한국미생물학회 2017 The journal of microbiology Vol.55 No.11
Dense granule protein-7 (GRA-7) is an excretory protein of Toxoplasma gondii. It is a potential serodiagnostic marker and vaccine candidate for toxoplasmosis. Previous reports demonstrated that GRA-7 induces innate immune responses in macrophages by interacting with TRAF6 via the MyD88- dependent pathway. In the present study, we evaluated the antiviral activity and induction of an antiviral state by GRA-7 both in vitro and in vivo. It was observed that GRA-7 markedly reduced the replication of vesicular stomatitis virus (VSVGFP), influenza A virus (PR8-GFP), coxsackievirus (H3- GFP), herpes simplex virus (HSV-GFP), and adenovirus-GFP in epithelial (HEK293T/HeLa) and immune (RAW264.7) cells. These antiviral activities of GRA-7 were attributed to the induction of type I interferon (IFN) signaling, resulting in the secretion of IFNs and pro-inflammatory cytokines. Additionally, in BALB/c mice, intranasal administration of GRA-7 prevented lethal infection by influenza A virus (H1N1) and exhibited prophylactic effects against respiratory syncytial virus (RSV-GFP). Collectively, these results suggested that GRA-7 exhibits immunostimulatory and broad spectrum antiviral activities via type I IFN signaling. Thus, GRA-7 can be potentially used as a vaccine adjuvant or as a candidate drug with prophylactic potential against viruses.