13 research outputs found
Rapid Recovery of Tigers Panthera Tigris in Parsa Wildlife Reserve, Nepal
Information on density and abundance of globally threatened species such as tigers Panthera tigris
is essential for effective conservation as well as to evaluate the
success of conservation programmes. We monitored tigers in Parsa Widlife
Reserve, Nepal, using camera traps, in 2013, 2014 and 2016. Once
believed to be a sink for tigers from adjacent Chitwan National Park,
Parsa now provides a new hope for tigers. Spatially explicit
capture–recapture analysis over 3 survey years revealed an increase in
tiger density from 0.78 to 1.38 individuals per 100 km2
from 2013 to 2016. The tiger abundance was estimated to be seven
(6–13), 11 (10–16) and 17 (17–20) in 2013, 2014 and 2016, respectively.
Resettlement of communities from the core area, reduced anthropogenic
pressure, and improved security have made Parsa Wildlife Reserve a
suitable habitat for tigers. Tiger abundance increased considerably
within a 5 km radius of the evacuated village sites, from two in 2013 to
eight in 2014 and 10 in 2016. Population turnover has remained moderate
(< 30% per year), with persistence of individuals in multiple years.
Dispersing tigers from Chitwan's source population accounted for a
large portion (c. 40%) of the tigers detected in Parsa. Conservation
efforts along with annual monitoring should be continued in Parsa to
sustain the increase and monitor the persistence of tigers. The
Chitwan–Parsa complex should be managed as a single ecological unit for
conserving the Endangered tiger and other wide-ranging species.Global Challenges (FSW
Hard exclusive pion electroproduction at backward angles with CLAS
We report on the first measurement of cross sections for exclusive deeply
virtual pion electroproduction off the proton, ,
above the resonance region at backward pion center-of-mass angles. The
-dependent cross sections were measured, from which we
extracted three combinations of structure functions of the proton. Our results
are compatible with calculations based on nucleon-to-pion transition
distribution amplitudes (TDAs) and shed new light on nucleon structure.Comment: 7 pages, 6figure
Developing Culturally Contextualised Mathematics Resource Materials: Capturing Local Practices of Tamang and Gopali Communities
Setting out to develop culturally contextualised curriculum support materials for teachers and students and a material for parental awareness, the project produced five sets of support materials incorporating the cultural practices of Tamang and Gopali communities. By following a two-phase procedural strategy the project demonstrated a unique possibility of integrating Nepali local cultural practices in school mathematics curriculum
Quand le sport construit la classe
International audienc
First Measurement of Electroproduction off Nuclei in the Current and Target Fragmentation Regions
We report results of hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the CEBAF 5.014 GeV electron beam. These results represent the first measurements of the multiplicity ratio and transverse momentum broadening as a function of the energy fraction () in the current and target fragmentation regions. The multiplicity ratio exhibits a strong suppression at high and an enhancement at low . The measured transverse momentum broadening is an order of magnitude greater than that seen for light mesons. This indicates that the propagating entity interacts very strongly with the nuclear medium, which suggests that propagation of di-quark configurations in the nuclear medium takes place at least part of the time, even at high . The trends of these results are qualitatively described by the GiBUU transport model, particularly for the multiplicity ratios. These observations will potentially open a new era of studies of the structure of the nucleon as well as of strange baryons