2,706 research outputs found
Genetic & Environmental risk factors for Obsessive-Compulsive Symptoms: Do they affect the same brain?
No full textGeus, J.C.N. [Promotor]de Boomsma, D.I. [Promotor]Ent, D. van 't [Copromotor
FIGURE 3. A in Nine new species of Timonius (Rubiaceae) from Kinabalu Park, Borneo
No full textFIGURE 3. A. Solitary fruit of Timonius kinabaluensis, Amin SAN 115990 (SAN). B. Solitary fruits of T. ophioliticus, Leopold SAN 81740 (L). C. Male inflorescences of T. ophioliticus, Muin SAN 31658 (SING). D. Strongly recurved leaf margins of T. tambuyukonensis, Van der Ent et al. SNP 24479 (SNP). E. Solitary female flowers of T. tambuyukonensis, Van der Ent et al. SNP 24479 (SNP). F. Stipules and female inflorescence of T. clementis, Wong & Kambira WKM 2410 (L). G. Solitary fruit of T. tambuyukonensis, Van der Ent et al. SNP 24479 (SNP). H. Solitary fruit of T. stenolobus, Clemens & Clemens 40171 (L). Scale bars: 1 cm. [Photos: A and C, J. Chen; B, F, and H, K.M. Wong; D, E, and G, A. van der Ent]Published as part of Chen, Junhao, Wong, Khoon Meng, Ent, Antony Van Der & Tan, Hugh T.W., 2014, Nine new species of Timonius (Rubiaceae) from Kinabalu Park, Borneo, pp. 138-150 in Phytotaxa 181 (3) on page 144, DOI: 10.11646/phytotaxa.181.3.2, http://zenodo.org/record/514597
FIGURE 1. Gynura tambuyukonensis. A in Gynura tambuyukonensis (Asteraceae), an obligate ultramafic species endemic to Mount Tambuyukon (Kinabalu Park, Sabah, Malaysia)
No full textFIGURE 1. Gynura tambuyukonensis. A habit; B leaf; C capitulum; D phyllary; E floret with pappus; F style; G anthers; H cypsela. Illustration by Wanwisa Bhuchaisri and Pornphen Supachok.Published as part of Ent, Antony Van Der & Vanijajiva, Ongkarn, 2014, Gynura tambuyukonensis (Asteraceae), an obligate ultramafic species endemic to Mount Tambuyukon (Kinabalu Park, Sabah, Malaysia), pp. 291-296 in Phytotaxa 158 (3) on page 293, DOI: 10.11646/phytotaxa.158.3.9, http://zenodo.org/record/512838
The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue
No full textThis article is a Commentary on Reeves et al., 218: 407–411 and van der Ent et al., 218: 432–434
Differences and similarities in selenium biopathways in Astragalus, Neptunia (Fabaceae) and Stanleya (Brassicaceae) hyperaccumulators
No full textBackground and Aims: Selenium hyperaccumulator species are of primary interest for studying the evolution of hyperaccumulation and for use in biofortification because selenium is an essential element in human nutrition. In this study, we aimed to determine whether the distributions of selenium in the three most studied hyperaccumulating taxa (Astragalus bisulcatus, Stanleya pinnata and Neptunia amplexicaulis) are similar or contrasting, in order to infer the underlying physiological mechanisms. Methods: This study used synchrotron-based micro-X-ray fluorescence (μXRF) techniques to visualize the distribution of selenium and other elements in fresh hydrated plant tissues of A. racemosus, S. pinnata and N. amplexicaulis. Key Results: Selenium distribution differed widely in the three species: in the leaves of A. racemosus and N. amplexicaulis selenium was mainly concentrated in the pulvini, whereas in S. pinnata it was primarilylocalized in the leaf margins. In the roots and stems of all three species, selenium was absent in xylem cells, whereas it was particularly concentrated in the pith rays of S. pinnata and in the phloem cells of A. racemosus and N. amplexicaulis. Conclusions: This study shows that Astragalus, Stanleya and Neptunia have different selenium-handling physiologies, with different mechanisms for translocation and storage of excess selenium. Important dissimilarities among the three analysed species suggest that selenium hyperaccumulation has probably evolved multiple times over under similar environmental pressures in the US and Australia
Upwind forests: managing moisture recycling for nature-based resilience
No full textTrees and forests multiply the oceanic supply of freshwater through moisture recycling, pointing to an urgent need to halt deforestation and offering a way to increase the water-related benefits of forest restoration.Water Resource
Six-proposition manifesto for small Island territories
No full textConventional wisdom suggests that small, often island, states are more likely than larger nations to be hard hit by the effects of national disasters, of fluctuations in the global economy, and the political aspirations of world powers. The structural weaknesses they share have been quantified to create a Vulnerability Index. This paper points to what the author sees as flaws in the concept of vulnerability and its application to the weaknesses of small states. In particular he presents evidence that small developing countries have performed no worse than larger countries. He sets out six propositions which explain this paradox and identifies the comparative advantages that small states hold.peer-reviewe
Response to Shayah and Coatesworth
No full textFull assessment of snoring should involve general and local factors which contribute to the patient's complaint, such as any history of apnoea attacks, high body mass index, reflux, smoking, alcohol consumption, uvulasize and laxity of soft palate, collar size and base of tongue. The paper did not clearly identify the potential importance of these factors
Approche pragmatique pour une politique de plein emploi: les subventions a la creation d'emplois = Pragramatic approach for a policy of full employment: subsidies for the creation of employment. Economic Papers No. 22, October 1983
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