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A letter to the editor is presented which discusses emergence of impact disparity in science , wherein only few papers earn the biggest share of citations, reflecting the income disparity in the U.S.

A letter to the editor is presented concerning the commitment of scientists from industry and academia collaborating with the Structural Genomics Consortium (SGC) to make synthetic probes.

A letter to the editor is presented in response to the discussion regarding the decision by the International Commission on Zoological Nomenclature (ICZN) to permit naming of new species in electronic-only publications in the 2012 issue.

A letter to the editor is presented which discusses problems in the enforcement of environmental law in Ecuador, particularly the strip mining in southern Ecuador of gold and copper ore.

A letter to the editor is presented in response to the article about the support of the U.S. National Institutes of Health (NIH) on influential and innovative research in life sciences in the 2012 issue.

A letter to the editor is presented in response to the article regarding the authors' analysis that discard nearly health research that matters such as clinical trials that catalyses therapeutic and preventive innovation.

A letter to the editor is presented in response to an article regarding the flawed research analysis of the U.S. National Institutes of Health (NIH) in the identification of biomedical breakthrough discoveries in the 2012 issue.

A letter to the editor is presented regarding the support of the journal to a German multidisciplinary journal named Naturwissenschaften (Natural Sciences) which aims motivations of excellence, originality and interdisciplinarity.

A letter to the editor is presented in response to the article about the uncertainty of science in shaping policy and its sustainable development goals in the 2012 issue.

A letter to the editor is presented concerning the prepublication of scientific papers on arXiv.org servers which is superior to the author pays model of open-access journal publishing.

A letter to the editor is presented which discusses a debate regarding self-archiving of pre-and-post print versions of research papers on the arXiv.org server, an open-access publishing, in high-energy physics.

A letter to the editor is presented regarding the need for clear policy on inclusion of deceased authors on contribution to the paper.

A letter to the editor is presented in response to the article regarding the Finch report on the methods to promote universal open access on scientific papers in the 2012 issue.

A letter to the editor is presented concerning the gold route to open-access research papers in Great Britain.

A letter to the editor is presented in response to the article by Heather Piwowar in the 2013 issue regarding the lists of research papers being asked by the Medical Research Council (MRC) in Great Britain in their grant-application process.

A letter to the editor is presented regarding the impact of the increased of scientific papers published in China which are being inflated by a payment scheme offered by some Chinese institutions to boost journal publications.

A letter to the editor is presented concerning the sustainability of rapeseed biodiesel.

A letter to the editor is presented in response to the article regarding the need for a scientific approach on biodiversity by Esther Turnhout in the 2012 issue.

A letter to the editor is presented which discusses the moratorium called by the Action Group on Erosion, Technology and Concentration (ETC) regarding the commercialization of engineered nanoparticle products.

A letter to the editor is presented in response to an editorial regarding h-index forecasting in the 2012 issue.

A letter to the editor is presented in response to the article regarding the denial of due credit for the obituary of Martin Fleischmann by Philip Ball in the 2012 issue.

A letter to the editor is presented concerning the climate monitoring of Lauder research station operated by the National Institute of Water and Atmospheric Research (NIWA) in New Zealand.

A letter to the editor is presented in response to an article by Trevor Quirk about improving communication in science and the need for science writers to not shun away from scientific jargons.

A letter to the editor is presented in response to the article regarding the benefits of doctor of philosophy (PhD) degree in the industry and commerce and reforms to PhD programs in European countries.

A letter to the editor is presented regarding the warning of Daniel MacArthur to journal editors and scientists to avoid getting into false positive conclusions in scientific publishing.

A letter to the editor is presented regarding the approach for greater transparency and speed up investigations of scientific misconduct.

A letter to the editor is presented which discusses the wrong linking of Andrew Berry in his review of the article written by Charles Darwin and published by Alfred Russel Wallace.

A letter to the editor is presented in response to the article on monitoring fungal diseases in freshwater fish, which are important in people in eastern Asia.

A letter to the editor is presented which discusses plant collection and the importation of ornamental plants.

A letter to the editor is presented regarding the threat of law proposed by Nelson Meurer of the Brazilian National Congress that would allow the cultivation of non-native fish species in freshwater aquaculture cages in Brazil.

A letter to the editor is presented in response to the article "Animal models: Not close enough," by Jocelyn Rice in the 2012 issue, which discusses the medical benefits from animal research.

A letter to the editor is presented regarding the control of electronic waste in India.

A letter to the editor is presented regarding the relevance of social sciences in solving societal issues.

replying to H. C. Giacomini, B. Shuter, D. T. de Kerckhove & P. A. Abrams 493, http://dx.doi.org/10.1038/nature11829 (2012)Current studies assume that per-capita consumption rates always scale with body mass to an exponent of 0.75. We showed that, contrary to this assumption, consumption rates scale sublinearly (exponent of approximately 0.85) when organisms forage in two dimensions (2D), and superlinearly (exponent of approximately 1.06) when they forage in 3D. Giacomini et al. argue that the superlinear scaling in 3D interactions we observed cannot be reconciled with life-history theory for maximal body size. Consequently, they search for biases in our study that might cause this superlinear scaling. However, their comments do not challenge our central result that consumption rates scale superlinearly in 3D, and significantly more steeply than in 2D. We propose instead that life-history theory may need revision to include interaction dimensionality. [ABSTRACT FROM AUTHOR]

A letter to the editor is presented which discusses the production of biomass energy in Australia.

A letter to the editor on effectiveness of public petitions and ganging up against unpopular research risks damaging scientific discourse is presented.

A letter to the editor on wrongly illustrating six-sided dice in a previous issue of the journal is presented.

A letter to the editor in response to an article related to a petition by the U.S. biomedical scientists against the one-retry limit on grant applications to the National Institutes of Health (NIH) is presented.

A letter to the editor on factors contributing to obesity is presented.

A letter to the editor on factors affecting obesity is presented.

A letter to the editor on natural history collections is presented.

A letter to the editor is presented in response to the article regarding the bioenergy in Australia by Andrew Lang and colleagues in the 2012 issue.

A letter to the editor is presented which discusses the need to adopt the environmental sustainability in achieving the developmental goals.

A letter to the editor is presented which discusses the study by Andrew Land and colleagues on the bioenergy potential of Australia.

A letter to the editor is presented regarding the usefulness of the Encyclopedia of DNA Elements (ENCODE) project, not only on genomics but also on astronomy and Earth sciences.

A letter to the editor is presented in response to the article regarding the promotion of the myth that minority sexual preferences are an illness by merging animal and human behaviour by Andrew Barron and Mark Brown in the 2012 issue.

A letter to the editor is presented in response to the article in the 2012 issue regarding the research conduct for each research institutions in Europe.

A letter to the editor is presented in response to the article in the 2012 issue regarding the clarification of uncertainties in models of climate-change impacts.

A letter to the editor is presented regarding the upgrade of the Ariel College to a university by the Israeli military's Council for Higher Education on Judea and Samaria.

A letter to the editor is presented which discusses the role of the society in conservation efforts and coservation triage of U.S. bird species such as Kirtland's warbler.