Si(IV) Complexes with Schiff Bases

659-66

A Novel Design of Hybrid Monopole Rectangular Microstrip Antenna for WLAN and Wi-MAX Applications

This article describes a novel design and development of hybrid monopole rectangular microstrip antenna (HMRMSA) for WLAN and Wi-MAX applications. This antenna operates for the frequency range of2.07 to 6.72 GHz and showing a impedance bandwidth of 145%. The antenna structure consists of hybrid triangular shape model. At the bottom surface a partially ground plane is placed to achieve single wideband. The proposed antenna is fabricated using low cost FR4 substrate material. The antenna is excited through 50 ? microstrip line. The simulated and experimental results are demonstrates which are in good agreement with each other.The proposed antenna satisfies the -10dB impedance bandwidth requirements tocovering WLAN and Wi-MAX applications

Chip equalized adaptive rake receiver for DS-CDMA UWB systems

Conventional Rake receiver is a popular and effective method of utilizing the diversity offered by a DS-CDMA and multipath communication channel. The proposed Rake receiver is useful for suppression of multiple access interference in a multipath channel. The receiver works on chip level equalization on each Rake finger to cancel multi-access interference. Simulation results show that the convergence, diversity gain and bit error probability performance of the proposed receiver is much better than conventional adaptive Rake receiver in multipath channels

Frequency and time hopping PPM UWB multiple access communication scheme

In this paper we propose frequency and time hopping pulse position modulation (FTH-PPM) ultra wideband (UWB) for multiple access communications.We have derived and investigated the bit error probability for the multi-user synchronous transmitter case in multipath channels with Additive White Gaussian Noise (AWGN). Simulation results show that bit error probability performance of FTH-PPM UWB out performs the time hopping pulse position modulated (TH-PPM) UWB system. It also show that multiuser capacity of FTH-PPM UWB system is much better than TH-PPM UWB system

Fisheries geographical information system for Greater Mumbai region in Maharashtra, India

Geographical information system (GIS) is an invaluable decision support tool, designed to address spatially related problems for management of natural resources. The power of GIS lies in its ability to visualise and relate various types of geo-referenced spatial and non-spatial data allowing users to analyse them. In India, use of GIS in fisheries management is yet to find its rightful place. An effort has been made in the present study to design and organise a fisheries spatial information system for Greater Mumbai region in Maharashtra to serve as a macro-level database for the planners and administrators, which can be used for querying, analysing and displaying datasets in the form of graphs and summarised tabular data for all the fisheries infrastructural facilities. This GIS will be of immense help to planners, managers and administrators in quick storing, retrieving and updating the required information for management of fisheries in Greater Mumbai region

SYNTHESIS, CHARACTERIZATION AND EVALUATION OF 4-HYDROXY-1-PHENYL/METHYL-3-(3-SUBSTITUTED-1-(SUBSTITUTEDIMINO) PROPYL) QUINOLINE-2(1H)-ONE DERIVATIVES AND 4-HYDROXY-1-PHENYL/METHYL-3-(1-(SUBSTITUEDIMINO) ETHYL) QUINOLINE-2(1H)-ONE DERIVATIVES AS POSSIBLE ANTICANCER AGENTS

Objective: Synthesis, characterization and evaluation of quinolin-2-one derivatives as possible anticancer agents.Methods: A series of novel 4-hydroxy-1-phenyl/methyl-3-(3-substituted-1-(substitutedimino)propyl)quinolin-2(1H)-one derivatives IIa(1-5)/IIb(1-5) and 4-hydroxy-1-phenyl/methyl-3-(1-(substituedimino)ethyl)quinolin-2(1H)-one derivatives IIIa(1-3)/IIIb(1-3) were synthesised by nucleophilic addition of substituted anilines on 3-acetyl-4-hydroxy-1-phenyl/methylquinolin-2(1H)-one (a/b) and 4-hydroxy-3-(3-substitutedpropanoyl)-1-phenyl/methyl quinolin-2(1H)-one (Ia/Ib); respectively. The synthesised derivatives were characterised by spectral analysis and were tested for their in vitro anticancer activity against K562 and Hep 3b cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay method.Results: The compounds were tested for their in vitro anticancer activity against K562 and Hep 3b cell lines at 10, 20, 25, 30 and 50 µg/ml concentration using MTT assay method. The compound 4-hydroxy-3-(3-morpholino-1-(phenylimino)propyl)-1-phenylquinolin-2(1H)-one (IIa-1) showed anticancer activity with IC50 value 20 µg as compared to the control against K562 cell lines. The compound 4-hydroxy-1-phenyl-3-(1-(phenylimino) ethyl) quinolin-2(1H)-one (IIIa-1) showed anticancer activity with IC50 value less than 10 µg.Conclusion: The proposed method for the synthesis of novel derivatives is convenient and gives a good yield. Some of the synthesised compounds showed promising anticancer activity against K562 and Hep 3b cell lines. Compound IIa-1 (R=-C6H5; R1= morpholine; R2= C6H5-NH-) exhibited most potent activity against K562 cell lines. Compound IIIa-1 (R=-C6H5; R3= C6H5-NH-) has been proved to be the most cytotoxic compound among the other derivatives against Hep 3b cell lines

A conceptual study on Charakokta Bhaishajya Pareeksha Vidhi and it’s significance

Ayurveda is a holistic science which explains Karana Dravyas and Karya Drayas in its basic principles. Dravya (drug) one which gives shelter (Ashraya) to Guna and Karma in an inherent relation.[1] Dravyaguna Shashtra is the science which mainly deals with Dravya, Guna, Karma, Rasa, Veerya, Vipaka of drug in detail.[2] The Prakruti and action of Dravya mainly depends on its Panchabhoutika constituents, Rasa, Guna, Veerya, Vipaka, Prabhava etc. of Dravya. For Dravyabhuta Chikitsa Dravya should be examined for the factors like Prakruti (nature of Dravya), Guna (Qualities of Dravya), Prabhava (Specific actions), Desha (Habitant or place of growth), Rutu (Season of collection), Gruhita (mode of collection), Nihita (Method of preservation), Upaskrutya (Method of Processing), Matra (Dosage), Doshaapakarshana, Upashamana all these factors should be assessed properly before selecting a Dravya for Chikitsa.[3] According to Ayurveda, Bhashajya or Dravya placed as important among Chikitsa Chatuspada. The Dravya is basic need for the Chikitsa without which Chikitsa is not possible so to have better therapeutic results in treatement Bhaishajya Pareeksha Vidhi plays a major role. Acharya Charaka has explained Bhaishajya Pareeksha Vidhi or Dravya Pareeksha Vidhi in detail in Charaka Vimana 8/87 which has great significance in thearapeutic results by selecting drug for Chikitsa after considering Charakokta Bhaishajya Pareeksha Vidhi

Proceedings of the National Workshop on Fisheries Economics Research and Education in India: An overview

Indian fisheries sector plays an important role in the socio-economic development of the country, in view of its potential contribution to national income, nutritional security, employment opportunities, social objectives and export earnings. Fisheries contributes 4.3 percent to the agricultural GDP and export earnings are presently valued at over Rs. 6,400 crores. In addition, it provides direct and indirect employment and dependency for over seven million people in the country

Business Strategies for fisheries and Aquaculture

Training on Business Strategies for fisheries and Aquaculture 2-8 February 200

2nd Zonal Workshop on Fisheries and Aquaculture Policy: Ecosystem and Livelihood Perspectives in East Coast States

2nd Zonal Workshop on Fisheries and Aquaculture Policy: Ecosystem and Livelihood Perspectives in East Coast States Andhra Pradesh, Andaman & Nikobar Islands, Orissa. Pondichery, Tamilnadu and West Bengal Hyderabad 22-24 March, 2007 (CIFE, MUMBAI