Reports on the work of three nominees for the 1992 Andersen medal, awarded to recognize a body of work that has made a lasting contribution to children's literature. Discusses the work of Finnish author Hannu Makela; Argentinian writer, poet, and singer Maria Elena Walsh; and the Iranian author Hooshang Moradi Kermani. (RS)
Jha, Sunita R; Mcdonagh, Julee; Ferguson, Caleb; Macdonald, Peter S; Newton, Phillip J
As highlighted in a recent editorial, the ageing population and burden of frailty amongst those aged 60 years and older represents an impending challenge for individuals and health care systems globally (Smith & Kydd 2017). As frailty is largely considered a geriatric syndrome, research has primarily occurred within elderly community dwelling populations (Fried et al. 2001). However, it is important to highlight that not all older people are frail; and conversely not all younger people are non-frail. With frailty research expanding its scope beyond geriatrics over the last 2 decades, our understanding of this syndrome and its complexities has progressed. Notably the disparities in why individuals either 'thrive' or 'dive', is being attributed to frailty severity rather than age alone. This is especially true when assessing younger critically ill patients, where the impact of frailty is said to be analogous to that of frailty in older people (Bagshaw et al. 2016). These younger populations have some of the highest reported frailty prevalence rates; where frailty plays a key role in morbidity, mortality and health care utilization above that of other populations (Arora et al. 2016; Jha, Hannu, Chang, et al. 2016; McAdams-DeMarco et al. 2015). This article is protected by copyright. All rights reserved.
Park, Suk-Young; Rhim, Jun-Won; Moon, Kyungsun
Recent theoretical study of the chiral graphene nanoribbons(CGNR) has demonstrated the magnetic ordering of the edge states below a certain chiral angle1. Based on the Hubbard model for the CGNR, we study the static properties of the magnetic edge states such as the intra-edge and inter-edge spin stiffness, which are the two crucial parameters to control the thermodynamics of the effective magnetic hamiltonian. For the systematic study of the anti-ferromagnetic inter-edge spin correlations, we calculate the inter-edge spin stiffness as a function of ribbon width and transverse electric field. We also attempt to calculate the electronic and magnetic properties for the other edge geometries such as a reconstructed edge geometry, which has been experimentally confirmed as an edge shape other than zigzag or armchair nanoribbon2 1. Oleg V. Yazyev, Rodrigo B. Capaz, and Steven G. Louie, Phys. Rev. B 84, 115406 (2011). 2. Pekka Koskinen, Sami Malola, and Hannu Hakkinen, Phys. Rev. B 80, 073401 (2009). This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education, Science and Technology(2012R1A1A2006927).
Larmola, Tuula; Koponen, Hannu; Riutta, Terhi; Fritze, Hannu; Goodrich, Jordan; Varner, Ruth; Bubier, Jill; Juutinen, Sari; Rinne, Janne; Vesala, Timo; Martikainen, Pertti J.; Tuittila, Eeva-Stiina
to the atmosphere from the same sites. Moss removal could increase the actual net flux of CH4 by up to 50%. Our results suggest that CH4 oxidation in the Sphagnum layer is potentially an important control for CH4 release from a mire ecosystem. Reference. Raghoebarsing, A.A., A.J.P. Smolders, M.C. Schmid, I.C. Rijpstra, M. Wolters-Arts, J. Derksen, M.S.M. Jetten, S. Schouten, J.S. Sinninghe Damsté, L.P.M. Lamers, J.G.M. Roelofs, H.J.M. Opden Camp and M. Strous 2005. Methanotrophic symbionts provide carbon for photosynthesis in peat bogs. Nature 436: 1153-1156. Sphagnum team. Hannu Koponen (2), Terhi Riutta (3), Hannu Fritze (4), Jordan Goodrich (5), Ruth Varner(5), Jill Bubier (6), Sari Juutinen (6), Janne Rinne (7), Timo Vesala (7), Pertti J. Martikainen (2) and Eeva-Stiina Tuittila (1)
Evans, Charles R.; Finn, Lee S.; Hobill, David W.
Christopher S. Kochanek and Charles R. Evans; 22. Relativistic hydrodynamics James R. Wilson and Grant J. Mathews; 23. Computational dynamics of U(1) gauge strings: probability of reconnection of cosmic strings Richard A. Matzner; 24. Dynamically inhomogenous cosmic nucleosynthesis Hannu Kurki-Suonio; 25. Initial value solutions in planar cosmologies Peter Anninos, Joan Centrella and Richard Matzner; 26. An algorithmic overview of an Einstein solver Roger Ove; 27. A PDE compiler for full-metric numerical relativity Jonathan Thornburg; 28. Numerical evolution on null cones R. Gomez and J. Winicour; 29. Normal modes coupled to gravitational waves in a relativistic star Yasufumi Kojima; 30. Cosmic censorship and numerical relativity Dalia S. Goldwirth, Amos Ori and Tsvi Piran.
Portner, Hanspeter; Wolf, Annett; Rühr, Nadine; Bugmann, Harald
and 2007 [Rühr(2009)] and present soil carbon stocks [Heim et al.(2009)]. Our Results show, that for short-term soil carbon dynamics, e.g. estimates of heterotrophic soil respiration on an annual basis, the inclusion of the dependency on litter quality is not necessary, as the differences are minor only. However, when considering long-term soil carbon dynamics, e.g. simulated estimates of present soil carbon content, the dependency on litter quality shows effect, as there are correlations with specific site factors such as site location and forest type. The inclusion of the dependence on litter quality therefore may be of importance for the projection of future soil carbon dynamics, as forest types may well be altered due to climatic change. References [Heim et al.(2009)] A. Heim, L. Wehrli, W. Eugster, and M.W.I. Schmidt. Effects of sampling design on the probability to detect soil carbon stock changes at the swiss CarboEurope site Lägeren. Geoderma, 149(3-4):347-354, 2009. [Rühr(2009)] Nadine Katrin Rühr. Soil respiration in a mixed mountain forest : environmental drivers and partitioning of component fluxes. PhD thesis, ETH, 2009. [Smith et al.(2001)] Benjamin Smith, I. Colin Prentice, and Martin T. Sykes. Representation of vegetation dynamics in the modelling of terrestrial ecosystems: comparing two contrasting approaches within european climate space. Global Ecology and Biogeography, 10(6):621-637, 2001. [Tuomi et al.(2008)] Mikko Tuomi, Pekka Vanhala, Kristiina Karhu, Hannu Fritze, and Jari Liski. Heterotrophic soil respiration-Comparison of different models describing its temperature dependence. Ecological Modelling, 211(1-2): 182-190, 2008.