Occultation of compact radio sources by the ion tail of Halley's Comet

Enhancements of scintillations of the compact radio sources PKS 2314+03 and 1827-360 were observed at 103 MHz and 408 MHz during 18-21 December 1985 and on 29 March 1986, respectively, when the plasma tail of Halley's Comet swept across them. At 103 MHz the RMS plasma density variation along the tail was 10 and 3.3/cu cm at 0.12 AU and 0.18 AU, respectively, as measured from the comet's position. At 408 MHz it was 1.9/cu cm at 0.036 AU. Comparison of results of these two sets of observations is presented

Traditionally Cultivated Salt Tolerant Rice Varieties Grown in Khazan Lands of Goa, India and Their Grain Quality Characteristics

The khazan lands (saline lands) have the potential for growing traditional rice varieties which are salt tolerant during rainy season without supplemental irrigation. In khazan land the rice varieties grown are limited, but specific traditional rice varieties like Korgut, Khochro and Assgo are grown predominantly. During this study, we have collected 10 traditionally cultivated rice varieties which grown in saline areas. These varieties were with unique morphological characteristics of shape, size and color. The physicochemical characteristics such as physical, chemical and cooking characteristics were studied. Among the varieties, the highest hulling (80%) was noted in varieties Muno, Shiedi and lowest in varieties Bello and Kalo Damgo (73%). The Length/Breadth (L/B) ratio ranged from 2.02-2.86. The lowest chalkiness was recorded in variety Kalo Novan (33.30%) and highest in variety Korgut (87.86%). Among the varieties studied, the amylose content (AC) ranged from 14.6-23.7% in variety Khochro and Kalo Novan respectively. The gel consistency was highest in traditionally cultivated rice variety Damgo (75.3 mm) and lowest in Khochro (34.6 mm). Kernel length after cooking (KLAC) ranged from 2.38-4.78 mm. The highest KLAC was recorded in Bello and minimum in variety Korgut. Kernel elongation ratio (ER) ranged from 1.03-1.66. The present investigation revealed that the traditionally cultivated rice varieties viz. Bello, Korgut, Khochro and Kalo Novan were with good grain quality characteristics. Key words: Grain quality, Khazan lands, Physico-chemical properties, Rice diversity Shilpa J. Bhonsle and S. Krishnan. Traditionally Cultivated Salt Tolerant Rice Varieties Grown in Khazan Lands of Goa, India and Their Grain Quality Characteristics. J Phytol 3/2 (2011) 11-1

Grain Quality Evaluation of Traditionally Cultivated Rice Varieties of Goa, India

AbstractThe physicochemical characteristics such as physical (hulling, head rice recovery (HR), broken rice (BR), grain classification, chalkiness), chemical (alkali spreading value, amylose content (AC), gel consistency (GC), aroma) and cooking characteristics (volume expansion, elongation ratio, water uptake) were studied for 22 traditionally cultivated rice varieties from Goa, in comparison with high yielding rice varieties Jaya, Jyoti and IR8. The hulling percentage ranged from 63-81% and HR recovery from 45-74%. Among the varieties Length/Breath ratio ranged from 1.5-3.5 and the AC ranged from 14-25%. The lowest percentage of chalkiness was recorded in variety Barik Kudi. Highest GC was recorded in variety Salsi and lowest in Khochro.  The kernel elongation ratio ranged from 4.78-1.83 mm and water uptake ratio ranged from 160-390. Some of traditionally cultivated rice varieties are with excellent grain quality characteristics. The rice variety korgut which predominantly grown in khazan lands could be used in breeding programmes to develop high saline varieties. Keywords: Amylose content, Grain quality, Physicochemical characteristics, Traditional rice varietie

Graph Based Video Sequence Matching & BoF Method for Video Copy detection

In this paper we propose video copy detection method using Bag-of-Features and showing acyclic graph of matching frames of videos. This include use of both local (line, texture, color) and global (Scale Invariant Feature Transform i.e. SIFT) features. This process includes dividing video into small frames using dual threshold method which eliminates the redundant frames and select unique key frames. After that from each key frame binary features are extracted which known as Bag of Features (BoF) which are get stored into the database in format of matrix. When any query video is being uploading, same features are extracted and compared with stored database to detect copied video. If video detected as copied then using Graph Based Sequence Matching Method, actual matched sequence between key frames is displayed in acyclic graph. DOI: 10.17762/ijritcc2321-8169.15067

Characterization of potentially autoaggressive brain infiltrating CD8+ T cells in multiple sclerosis patients

Multiple sclerosis (MS) is an inflammatory, demyelinating disease of the central nervous system. The disease is thought to be mediated by autoaggressive lymphocytes that attack the nervous myelin sheath, leading to the formation of characteristic lesions in the brain tissue. CD8+ T cells are thought to play a role in the immunopathogenesis of the disease because of the directed infiltration of an immune privileged structure followed by in situ clonal expansion. They are also the dominant brain infiltrating T cell population. However, the events that trigger this autoimmune attack, as well as the molecular target(s) of the autoaggressive T cells remain unknown. The current study is part of a long term strategy to identify the molecular target(s) of these autoaggressive CD8+ T cells. To achieve this, potentially autoaggressive T cells were isolated by laser microdissection from the brain tissue samples of MS patients. Their antigen specific T cell receptors (TCRs) were characterized, reconstructed in vitro in T hybridoma cells and applied in investigating antigen specificities. The α- and β- chains of the MS brain derived TCRs were characterized using a multiplex PCR approach. The TCR chain sequences provide insights into their immune function in context of multiple sclerosis. Firstly, identical TCR β-chains were found to be coexpressed with more than one α-chain in three different instances. This suggests that antigen driven receptor development or the existence of dual TCR molecules may contribute to autoimmunity. Secondly, one TCR clone was detected in cells from three tissue blocks of one patient, indicating that the T cell infiltration is not anatomically restricted during the autoimmune attack. Thirdly, four out of nine T cell receptor molecules, that were characterized together with colleagues, were found to belong to an innate T cell population called the mucosal-associated invariant T (MAIT) cells. These cells have been previously detectected in MS patients and are thought to regulate anti-microbial immunity, possibly providing a link between microbial infection and autoimmunity. The MAIT T cell receptors were expressed in T hybridoma cell lines and used to screen candidate MS antigens and plasmid encoded peptide libraries. In addition, the MHC class I related molecule MR1 that restricts MAIT antigen recognition, was investigated for its anchor residues to shed light on the nature of the bound MAIT antigen. In the long run, these studies promise to contribute to the understanding of multiple sclerosis in particular and autoimmunity in general

Development of an Automation Test Setup for Navigation Data Processing

With the development of Advanced Driving Assistance Systems (ADAS) vehicles have undergone better experience in field of safety, better driving and enhanced vehicle systems. Today these systems are one of the fastest growing in automotive domain. Physical parameters like map data, vehicle position and speed are crucial for the advancement of functionalities implemented for ADAS. All the navigation map databases are stored in proprietary format. So for the ADAS application to access this data an appropriate interface has to be defined. This is the main aim of Advance Driver Assistant Systems Interface Specifications (ADASIS) consortium. This new specification allows a coordinated effort of more than one industry to improve comfort and fuel efficiency. My research during the entire duration of my master thesis mainly focuses on two stages namely XML Comparator and CAN stream generation stages from ADASIS Test Environment that was developed in our company. In this test environment ADASIS Reconstructor of our company is tested against the parameters of Reference Reconstructor provided by ADASIS consortium. The main aim of this environment is to develop a Reconstructor which will adhere to all the specifications given in ADASIS Reconstructor. My implementation in this master thesis focuses on two stages of test environment setup which are XML Comparison and CAN Stream Generation Tool respectively. Prior to my working, these stages lacked in-depth research and usability features for further working

Incidence of oral leucoplakias among 20,358 Indian villagers in a 7-year period.

A group of 20,358 villagers in two districts of India has been followed for 7 years to study the incidence of oral leucoplakia. The follow-up rate of the population in two districts ranged from 61% to 71%. In one of the districts (Bhavnagar) no new cases of leucoplakia were found among females in the 7-year period. Among males 105 cases developed (4-0/1000/year). The incidence was highest among hookli (clay pipe) smokers. In the Ernakulam district the incidence among males was 3-3/1000/year whereas among females it was 1-9/1000/year. The mixed habits group had the highest incidence of oral leucoplakias (7-2 and 9-9/1000/year among males and females respectively)

Microwave solar radiometer at 2800 MHz

A Dicke-type microwave radiometer has been developed for daily measurement of solar flux at 2800 MHz. The antenna system, consists of a 5 foot parabolic dish with horn feed, is equatorially mounted and is capable of tracking the sun for about 8 hours each day. The dynamic range of the radiometer is such that even strong solar bursts (flux = 10,000 × 10-22 Watts m-2 Hz-1) can be recorded by using the receiver in the AGC mode. The calibration procedure and the errors involved in the measurement of the solar flux are briefly discussed. Some sample records of solar bursts made by means of this equipment are presented

Seismic Effects in F2 Region Related to Electron Temperature

The effect of earthquakes in the ionospheric F2 range was studied using the Indian satellite SROSS-C2 data on the cosmic electron temperature around the Indian sector in the ranges 0-34 ° N and 40-100 ° E for the period 1995-1997. Five episodes of earthquakes were analyzed and the observed anomalies at an average electron temperature were 29 to 10% higher than in the preceding days, and 16 to 4% higher than on days after the earthquake, and a latitudinal variation of this temperature. It is shown that the increase in this temperature was the maximum on the day preceding the earthquake, and for several hours before and after it. The anomalies observed around (in the ± 2-degree latitude range) were the epicenter of the earthquake. They were probably observed due to electromagnetic radiation during the earthquake activity. The period from 1995 to 1997 for this study was taken as a period of quiet geomagnetic conditions