Trace metal concentrations in Nile Tilapia (Oreochromis Niloticus) in three catchments, Sri Lanka

Samples of the muscle and liver of the Nile tilapia (Oreochromis niloticus) were obtained from a single reservoir in each of three Sri Lankan catchments (Kaudulla, Rajanganaya, and Udawalawe reservoirs in the Mahaweli, Kala Oya, and Walawe Ganga river basins, respectively) in 2002. The concentrations of 12 elements were consistently detected in the tilapia muscle and liver (Ca, Cd, Cu, Fe, Hg, K, Mg, Mn, Na, P, Sr and Zn). However, a three factorial principal components analysis suggested that there were no differences in the metal profiles (range of elements and concentration) of the fish obtained from any of the three reservoirs, although the chemistries of each tissue (muscle and liver) were different. Metal concentrations were below WHO and Food Standards Australia and New Zealand guideline values, and substantial quantities of tilapia would need to be consumed each week on a regular basis to exceed intake limits (e.g. more than 1.5 kg to exceed intake lits for Cu), suggesting consumption of tilapia from these reservoirs poses little risk to human health.

The inadequacy of Western media theory in third world internal conflicts : the case of military censorship in Sri Lanka

The literature of communication and conflict is long and deep. However, it has focused primarily on cross-border conflict in the northern hemisphere. Not much academic research has been done on intra-state conflicts in general or on Asian conflicts in particular. This research on the Sri Lankan separatist conflict contributes towards filling this void.Newspaper reports in three languages on Operation Jayasikurui (1997) as well as on the capture of Elephant Pass (2000) were analyzed by trained coders with high reliability. In-depth interviews were conducted with Sri Lankan journalists and military personnel who participated in these incidents. Triangulation sources include Sri Lanka Army materials and the Sri Lanka Government Gazette.

Results clearly show that despite stringent governmental regulations, censorship had no effect on these Sri Lankan newspapers, which employed unique cultural techniques to circumvent these restrictions. Despite their apparent divergent ethnic backgrounds, all newspaper samples are consensual in their depiction of the conflict all the time while managing to set different agendas for their individual readerships. Media regulations could not impose censorship as proposed by Western theoretical constructs. Results show no correspondence between media samples and imposition of government or military policy. The press enjoyed freedom to convey war information to the public and exhibited a distinct streak of social responsibility in their watchdog instincts.Dominant Western propaganda models and theoretical perspectives do not apply to the Sri Lankan context. Understanding the cultural dimensions is essential before theorizing on media behaviour. No particular theoretical framework from the literature could be used to make inferences. One further interesting finding suggested from this research: Internal conflict within the Asian region may have its own unique theoretical perspective. The study concludes by proposing an alternative model.

The inadequacy of Western media theory in third world internal conflicts : the case of military censorship in Sri Lanka

Research on media production and on media effects under military censorship has centred primarily on cross-border conflicts being waged by Western regimes. There is a noticeable void in understanding internal conflicts, particularly so within the Asian region. To help address this lacuna, we content-analyse Sri Lankan newspaper samples of two critical military campaigns within the Sri Lankan separatist conflict to gain insight into an Asian internal conflict within the context of military censorship and culture. We discover that supposedly stringent censorship regulations and the rules of the official communication systems have almost no effect on Sri Lankan newspapers, which demonstrate a unique talent to circumvent these strictures. During these bloody internal conflicts, the Sri Lankan press enjoyed freedom of expression, flaunted social responsibility and their watchdog instincts, and, most interestingly for us, demonstrated the failure of the Western propaganda model and other theoretical perspectives. The importance of understanding cultural dimensions before theorizing media behaviour in order to obtain a more rational understanding of the sociology of media is posited by this study. We conclude with discussion of a new model of media censorship which has more relevance in Asian internal conflicts.

Water quality, bacterial flora and production in shrimp farms in Sri Lanka

This study investigated the possibilities of improvement in the brackish water shrimp culture industry in Sri Lanka. Feeding rates could be further reduced without negative effect on shrimp growth while improving effluent water quality. Improvements of feed quality and pond management practices were also suggested.

Use of poverty indicators and the poverty pyramid for agricultural and rural development in the smallholder sector in Sri Lanka

Based on official micro-level poverty studies for agricultural and rural development in the smallholder sector of Sri Lanka. The Poverty Pyramid was found to be a powerful tool for poverty analysis and the design of poverty alleviation strategies that are targeted at sustained poverty alleviation. Identification of the correct target groups by factors that prevent them from being more productive in their income generation activities is crucial to the formulation of rural development programs that benefit poor people first and most.

Observations on metal concentrations in commercial landings of two species of tilapia (Oreochromis mossambicus and Oreochromis niloticus) from reservoirs in six river basins in Sri Lanka

Samples of the muscle of two species of tilapia (Oreochromis mossambicus and O. niloticus; 17-20 cm length) were obtained from at least one reservoir in each of the six river basins (Aruvi Aru, Kala Oya, Kirindi Oya, Ma Oya, Mahaweli, and Walawe Ganga catchments) in Sri Lanka. The metals Ca, Cu, Fe, K, Mg, Mn, Na, and Zn were consistently detected in the muscle tissue. Overall, there were few differences in the concentration of metals between the two species of fish, although there were also some statistically significant differences (p < 0.05) in the concentrations of some metals in fish obtained from some of the reservoirs. Aruvi Aru stands out as a river basin in which the two fish species have significantly lower concentration of metals when compared to other river basins. The concentration of the metals studied were below WHO and FSANZ guideline values for fish, suggesting that the consumption of the metals found in tilapia from these reservoirs poses little risk to human health.

Sri Lanka and the responsibility to protect : politics, ethnicity and genocide

This book provides a study of the war by Liberation Tigers of Tamil Eelam (LTTE) to create a separate state in Sri Lanka. It examines the ways in which this war should, in principle, have invoked ‘Responsibility to Protect’ principles, as well as the political, legal and practical problems involved and, ultimately, why the international community failed to act.

Over the years there have been several events, including those in Rwanda, Sierra Leone, Timor-Leste, Darfur, and Kosovo, that have led the international community to accept a responsibility to protect. However, despite its overwhelming preliminary endorsement, the principles of this concept are still not universally sanctioned and there are some strong international opponents, including some countries that were initial signatories of the convention.

By considering the example of Sri Lanka, the text focuses on what conditions could satisfy or demand the application of responsibility to protect. It further presents a case as to why this conflict was, and may still be, the normative responsibility of the international community.

Sri Lanka and the Responsibility to Protect will be of great interest to students of South-East Asian politics, human rights, international law, ethnic conflict, security studies and IR in general.

Information communication technology in secondary science education in Sri Lanka

This study researched the instruction of pre-service science teachers in Sri Lanka in the use of information communication technologies. It examined the use of a framework called the Technological Pedagogical Content Knowledge model that was found to assist the pre-service teachers in the effective use of technologies in their teaching.