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Structural, geochronological and geochemical evidence for two distinct thrust sheets in the ‘Main Central thrust zone’, the Main Central thrust and Ramgarh-Munsiari thrust: Implications for upper crustal shortening in central Nepal.
S Khanal, D.M. Robinson, Sema Mandal, Professor Padam Simkhada
Geological Society Special Publication (Vol. 412, pp. 221-245). doi:10.1144/SP412.2, 2014.
Abstract Two orogen-scale thrusts structurally underneath Greater Himalayan (GH) rocks characterize the structural architecture of Himalaya in central Nepal. The Main Central thrust (MCT) is at the base of the GH with the Lesser Himalayan (LH) Robang Formation in the footwall, which is the hanging wall of the Ramgarh–Munsiari thrust (RMT). At Kodari-Tatopani and Malekhu, U–Pb detrital zircon age populations from the RMT sheet yield a maximum depositional age of c. 1838 and c. 1871 Ma. U–Pb analyses of igneous zircons from the RMT sheet yield a crystallization age of c. 1750 Ma at both Galchhi and Kodari-Tatopani. The εNd(0) values of pelitic rocks from the RMT sheet at Kodari-Tatopani range from c. −23 to −25; whereas, GH rocks have values from c. −12 to −18. These data indicate that the RMT sheet carries the Palaeoproterozoic LH rock and the MCT carries the GH rock. At Kodari-Tatopani, the thrust previously mapped as the MCT is interpreted to be the RMT. Positively identifying the RMT sheet in all three locations yields a more accurate kinematic evolution and confirms its orogenic-scale presence in central Nepal.
Real or Illusory? Case Studies on the Public Perception of Environmental Health Risks in the North West of England.
Alex Stewart, Paolo Luria, Professor John Reid, Mary Lyons, Richard Jarvis
International Journal of Environmental Research in Public Health. 7(3), 1153-1173, 2010.
Abstract: Applied research in a public health setting seeks to provide professionals with insights and knowledge into complex environmental issues to guide actions that reduce inequalities and improve health. We describe ten environmental case studies that explore the public perception of health risk. We employed logical analysis of components of each case study and comparative information to generate new evidence. The findings highlight how concerns about environmental issues measurably affect people’s wellbeing and led to the development of new understanding about the benefits of taking an earlier and more inclusive approach to risk communication that can now be tested further.
Translocation and distribution of 13C-photosynthates in ‘Fuyu’ persimmon (Diospyros kaki) grafted onto different rootstocks.
E.P Simkhada, Y Sekozawa, S Sugaya, H Gemma
Journal of Food, Agriculture and Environment, 5(1), 184-189., 2007.
Abstract The effects of rootstock on translocation of photosynthates was determined at matured leaf stage in 2-year-old ‘Fuyu’(Diospyros kaki) persimmon trees grafted onto D. kaki and D. lotus rootstocks by using 13C tracer method. The number of leaves and branches, growth of shoot, trunk and tree, photosynthetic rate, stomatal conductance and transpiration rate were significantly higher in D. kaki than in D. lotus. Similarly, the total amount of 13C was higher in D. kaki than in D. lotus. The partitioning of 13C-photosynthates in leaves and branches decreased with time but it increased in trunk shoot, graft union, tap root, roots of more than 2 mm in thickness (roots ≥2 mm) and roots of less than 2 mm in thickness (roots <2 mm) in both the combinations. The roots <2 mm and the entire parts below the graft union of ‘Fuyu’/D. lotus combination accumulated significantly lower amounts of 13C as compared to ‘Fuyu’/D. kaki combination. It is possible that the graft union between ‘Fuyu’ and D. lotus could be a physical barrier that impairs the translocation of photosynthates. When treated by girdling at the upper trunk with nearby leaves fed on the 13CO2, 13C allocation in the middle part of leaves and branches just above fed leaves was significantly higher in D. kaki than in D. lotus. These results imply that upward partitioning of photosynthates was affected by rootstock and that ‘Fuyu’/D. kaki is more compatible as compared to the ‘Fuyu’/D. lotus combination.
Micheal Minges, Professor Padam Simkhada
ITU News, (10), 3-13, 2002.
Abstract South Asia, which comprises Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan, and Sri Lanka, has a combined population of over 1.3 billion people (see Table 1). India is by far the largest South Asian country, in terms of population, economy, and telecommunications network. For a region that makes up over one fifth of the total world population, South Asia accounts for only 2 per cent of world Gross Domestic Product (GDP) and 2.4 per cent of the total telephone subscribers (fixed and mobile). The region has one of the lowest per capita incomes in the world, about one tenth the world average and is home to four least developed countries (LDC). With 29 per cent of its population living in urban areas, South Asia remains predominantly rural.