Studies on Beach Placers of Kerala Coast

In the present paper, studies carried out on beach placer samples of Kerala coast in general and contribut-ions of NML and its current activities in particular on beach sands of Kerala have been discussed. While earlier beneficiation study at NML was on purification of zircon, present study, under network project, consist of charac-terization of samples from different areas to identify prospective area that will be taken up for development of process technology. Characterisation studies involve size and chemical analyses, sink and float studies, optical microscopy and scanning electron microscopy. Samples from four different areas (Valarpattanam Azhikod (VA), Chava-kkad Ponnani (CP), Neendakara Kayamkulam (NK) and Warkala coast) were studied. It has been found that while heavy mineral concentration at NK and Warkala coast is quite high, the same at CP is rather low in comparison and at VA it's not significant

Bounds on R-Parity Violating Parameters from Fermion EDM's

We study one-loop contributions to the fermion electric dipole moments in the Minimal Supersymmetric Standard Model with explicit R-parity violating interactions. We obtain new individual bounds on R-parity violating Yukawa couplings and put more stringent limits on certain parameters than those obtained previously.Comment: 16 pages, LaTe

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Not AvailableGlobal climate change is anticipated to have a tremendous influence on crop productivity and nutrient cycling in legume-based cropping systems. The effect of long-term application of manure and fertilizers on the dynamics of soil organic carbon (SOC) pools and soil physical properties was studied in a soybean (Glycine max Merr. L)–wheat (Triticum aestivum L.) system. The temperature sensitivity of C pools and the alterations in microbial composition were determined at 25, 35, and 45 ◦C. Higher levels of microbial biomass C (MBC) and nitrogen (MBN), water soluble carbon (WSC), acid hydrolysable carbohydrates (AHC), particulate organic matter carbon (POMC) and nitrogen (POMN) were observed in the NPK + FYM at a depth of 0–15 cm. Irrespective of the treatment, micro aggregates (53–250 m) were a major aggregate size class, comprising 45–57% of the total soil aggregates, followed by macro aggregates (250–2000 m at 37.8–45%). Microbial respiration rate increased by 13.9% in most recalcitrant pools (<53 m) at 45 ◦C than at 25 ◦C. Furthermore, data on labile C (A0) revealed a 4.9–55.4% increase in the substrate pools and a 10.5–32.5% increase in mineralization rate (k) with these treatments at 25–45 ◦C in 250–2000 m aggregates. AHC and POMC content decreased by 23–37% and 12–23% of SOC, respectively, when the temperature was raised from 25 to 45 ◦C. It is concluded the gradual depletion of nutrients, structural degradation and changes in microbial composition might have collectively contributed to the decline in crop yields. It was suggested that temperature has a strong effect on C mineralization, depending on the types and extents of substrate utilization. Seasonal rainfall, maximum and minimum temperature and SOC had jointly explained 12–41% of variation in soybean production in NP, NPK and NPK + FYM treatments. However, balanced use of NPK plus FYM is an important management option to arrest the decline of crop yield.Not Availabl

Fanon’s Lacan and the Traumatogenic Child: Psychoanalytic Reflections on the Dynamics of Colonialism and Racism

This paper revisits Fanon’s relationship with psychoanalysis, specifically Lacanian psy- choanalysis, via a close reading of his rhetorics of childhood – primarily as mobilized by the ‘Look, a Negro!’ scenario fromBlack Skin, White Masks, the traumatogenic scene which installs the black man’s sense of alienation from his own body and his inferiority. While this scene has been much discussed, the role accorded the child in this has attracted little attention. This paper focuses on the role and positioning of the child to reconsider Fanon’s ideas, in relation to his contribution to the social constitution of subjectivity, arguing that reading Fanon alongside both his citations of Lacan and some aspects of Lacanian theory opens up further interpretive possibilities in teasing out tensions in Fanon’s writing around models of subjectivity. Finally, it is argued that it is where Fanon retains an indeterminacy surrounding the child that he is most politically fruitful