Upper Limits on the Pulsed Radio Emission from the Geminga Pulsar at 35 & 327 MHz

We report here our observations at 35 MHz and 327 MHz made in the direction of the Gamma Ray pulsar Geminga. Based on the observed absence of any significant pulsed emission from this source above our detection thresholds at the two frequencies, we obtain useful upper-limits for the average flux to be 75-100 mJy at 35 MHz, and 0.2-0.3 mJy at 327 MHz. We discuss a few possible reasons for the ``radio-quiet'' nature of this pulsar at frequencies other than around 100 MHz.Comment: Accepted for publication in Astronomy & Astrophysic

ലോക ഭക്ഷ്യ കാർഷിക സംഘടനയുടെ ഉത്തരവാദ മത്സ്യബന്ധന പെരുമാറ്റച്ചട്ടവും നമ്മുടെ മത്സ്യ മേഖലയും - ഒരു വിശകലനം

ലോക ഭക്ഷ്യ കാർഷിക സംഘടനയുടെ ഉത്തരവാദ മത്സ്യബന്ധന പെരുമാറ്റച്ചട്ടവും നമ്മുടെ മത്സ്യ മേഖലയും - ഒരു വിശകലന

Open sea cage culture in India- A sociological perspective

Marine cage culture is the latest innovation in Indian mariculture scenario. The first cage was demonstrated in Visakhapatanam in 2007-08. The logic of the floating cage culture technology is the conversion of marine space into a controlled production system. This entails a number of socio-political issues apart from the technological ones. Prominent among them is the changing context of marine tenure in the country. This paper analyses such issues based on a preliminary study conducted in some of the locations where the cage demonstration has been implemented. The major sociological framework employed in the analysis is that of the Actor –Network Theory (ANT) proposed by Latour (2007). Thus the methodological objective was to explore the actor- networks at different locations using participatory protocols

Responsible fisheries and International trade- A prelude

The Code of Conduct for Responsible Fisheries (CCRF) of the FAO underscores in Article 6.4 that “International trade in fish and fishery products should be conducted in accordance with the principles, rights and obligations established in the World Trade Organization (WTO) Agreement and other relevant international agreements. States should ensure that their policies, programmes andpractices related to trade in fish and fishery products do not result in obstacles to this trade, environmental degradation or negative social, including nutritional, impacts.

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