251 research outputs found
Chirita heterotricha Merr.
No full text<p> <b>14.</b> <i>Chirita heterotricha</i> Merr.</p> <p> (Gesneriaceae) in Lingnan Sci. Journ. 13(1): 71. 1934. TYPE: <b>—</b> CHINA. Hainan: Hongmao Shan, 3 May 1929, <i>W. T. Tsang, Tang & H. Fung 28</i> (i.e. Lingnan University Herbarium 17559) (holotype: NY 00063240 image!; isotype: A 00015874 image!).</p> <p> The name <i>Chirita heterotricha</i> Merr. was validly published with a gathering “ <i>Tsang, Tang & Fung 17559</i> ” in NY designated as the type (Merrill, 1934b). However, the collecting number on the lable of the holotype specimen is 28, while its herbarium number is Lingnan University Herbarium 17559. Therefore, the erroneous collecting number in the designation of type is to be corrected.</p>Published as part of <i>Lin, Yun, Bi, Hai-Yan, Sun, Jun & Sun, Qian, 2023, Correction of collecting number errors in the protologues of sixty-four taxon names from China, pp. 261-270 in Phytotaxa 613 (3)</i> on pages 263-264, DOI: 10.11646/phytotaxa.613.3.5, <a href="http://zenodo.org/record/8345323">http://zenodo.org/record/8345323</a>
Designing Semantic Publish/Subscribe Networks Using Super-Peers
No full textthis paper, a very important contribution of SIENA is the adoption of a P2P model of interaction among servers (super-peers in our terminology) and the exploitation of traditional network algorithms based on shortest paths and minimum-weight spanning trees for routing messages. SIENA servers additionally utilize partially ordered sets encoding subscription and advertisement subsumption to minimize network tra#c. The core ideas of SIENA have recently been used in the pub/sub systems DIAS [23] and P2P-DIET [2, 24, 21] but now the data models utilized were inspired from Information Retrieval. DIAS and P2PDIET have also emphasized the use of sophisticated subscription indexing at each server to facilitate e#cient forwarding of notifications [40]. In some sense, the approach of DIAS and P2P-DIET puts together the best ideas from the database and distributed systems tradition in a single unifying framework. Another important contribution of P2P-DIET is that it demonstrates how to 18 P.- A. Chirita, S. Idreos, M. Koubarakis, W. Nejd
A Kinetic Study of Hydrogen Peroxide Decomposition in Presence of Pyrite
No full textThe kinetics of hydrogen peroxide decomposition in presence of pyrite has been investigated in aqueous acidic media. It was found that hydrogen peroxide decomposition is double catalyzed by iron sites found on pyrite surface (a heterogeneous reaction) and aqueous ferric iron (a homogenous reaction). The heterogeneous reaction is first order with respect to [H2O2], and homogeneous reaction is first order with respect to [H2O2] and [Fe(aq)]. The rate is proportional to a fractional power of the geometric surface area (0.77) and [H+] (–0.55). The apparent activation energy of the hydrogen peroxide decomposition into oxygen and water at a temperature range of 25 to 45 °C was found to be 79.5 kJ mol–1
Primulina pseudolinearifolia W. B. Xu & K. F. Chung 2012, nom. nov.
No full textPrimulina pseudolinearifolia W.B.Xu & K.F.Chung, nom. nov. Basionym:— Chirita luochengensis YanLiu & W.B.Xu in Xu et al. (2011b: 314) [non Wentsaiboea luochengensis YanLiu & W.B.Xu in Liu et al. (2010: 743) = Primulina luochengensis (YanLiu & W.B.Xu) Mich.Möller & A.Weber in Weber et al. (2011c: 783)]. Type:— CHINA. Guangxi: Luocheng County, Huaiqun Town, 350 m, 19 April 2009, Xu & Liu 09383 (holotype IBK!, isotype PE!). Notes:—Although no molecular data are available for the species, Chirita luochengensis is clearly a member of Chirita sect. Gibbosaccus and very similar (Xu et al. 2011b) to Chirita linearifolia Wang in Wang & Pan (1982: 136) that has been transferred to Primulina [i.e. P. linearifolia (Wang) Wang in Wang et al. (2011: 61)] on the basis of molecular analysis (Wang et al. 2011). Nevertheless further molecular confirmation is needed. The recent transfer of Wentsaiboea luochengensis Liu & Xu to Primulina [i.e. P. luochengensis (Liu & Xu) Möller & A.Weber] blocks the direct transfer of C. luochengensis to Primulina. The new name Primulina pseudolinearifolia is proposed to highlight its morphological similarity to P. linearifolia.Published as part of Xu, Wei-Bin, Zhang, Qiang, Wen, Fang, Liao, Wen-Bo, Pan, Bo, Chang, Hsuan & Chung, Kuo-Fang, 2012, Nine new combinations and one new name of Primulina (Gesneriaceae) from South China, pp. 1-8 in Phytotaxa 64 (1) on page 4, DOI: 10.11646/phytotaxa.64.1.1, http://zenodo.org/record/506197
Ab initio studies of Al, O, and O2 adsorption on α-Al2O3 (0001) surfaces
No full textThe interactions of Al, O, and O2 with different α- Al2O3 (0001) surfaces have been studied using ab initio density functional theory methods. All three surface terminations obtainable by cleaving the bulk structure [single Al-layer (AlO), double Al-layer (AlAl), and O terminations] have been considered, as well as a completely hydrogenated O-terminated surface. Adsorbed Al shows strong ioniclike interaction with the AlO - and O-terminated surfaces, and several metastable adsorption sites are identified on the O-terminated surface. On the completely hydrogenated surface, however, Al adsorption in the bulk position is found to be unstable or very weak for the studied configurations of surface H atoms. Atomic O is found to interact strongly with the AlAl -terminated surface, where also O2 dissociative adsorption without any appreciable barrier is observed. In contrast, O adsorption on the AlO -terminated surface is metastable relative to molecular O2. On the O-terminated surface, we find the creation of O surface vacancies to be plausible, especially upon exposure to atomic O at elevated temperatures. The results are mainly discussed in the context of alumina thin film growth and provide insight into phenomena related to, e.g., preferred adsorption sites and effects of hydrogen on the growth.Original publication: E. Wallin, J.M. Andersson, E.P. Münger, V. Chirita & U. Helmersson, Ab initio studies of Al, O, and O2 adsorption on α- Al2 O3 (0001) surfaces, 2006, Physical Review B, (74), 125409. http://dx.doi.org/10.1103/PhysRevB.74.125409. Copyright: The America Physical Society, http://prb.aps.org/</p
The Disclosure of Evidence Under the ‘Antitrust Damages’ Directive 2014/104/EU
No full textThe aim of this contribution is to reflect on the principles underpinning the disclosure of evidence under Directive 2014/104/EU, namely the principles of proportionality, effectiveness, equivalence and consistency. It also aims to review the legislative techniques that the Directive has used in order to codify the previous case law of the European Union (EU) courts and to discuss several recent rulings, including Carglass, Pilkington, Evonik Degussa and others. Finally, the author draws conclusions on the adequacy of the achieved codification of the previous case law on the disclosure of evidence and access to such evidence, as well as on its potential implications for the Member States. This contribution is based on a presentation delivered at the 4th Petar Šarčević international conference on ‘EU Competition and State Aid Rules: Interaction between Public and Private Enforcement’ in Rovinj, Croatia. The author would like to thank the organisers of the wonderful conference, the editors and commentators, especially Vlatka Butorac Malnar, Judges Vesna Tomljenović, Marc Jaeger, Viktor Kreuschitz and Miro Prek, and also Marc Barennes and Nuria Bermejo Gutierrez
Abuse of Global Platform Dominance or Competition on the Merits?
No full textContrary to mainstream opinion, suggesting that dominant online platforms compete on their own merits and that their abuse of the large-scale accumulation of data should fall under data or privacy laws, this article argues that competition law should investigate whether global platform competition has been established on merit alone and how digital dominance has been strengthened through the downfall of emerging competition (the exclusionary harm) and the excessive combination of individuals\u27 data (exploitative harm). To frame the theory of competitive harm in a global context, this article compares several of the most recent cases involving digital giants such as Google, Facebook, and Amazon in both pro-active jurisdictions, as well as in less interventionist jurisdictions. In doing so, the author challenges the existing categorization of abuse of a dominant position, especially self-preferencing and the excessive disclosure of data. This article advances the constitutional dimension of competition law by recognizing the principle of nondiscrimination and equal treatment in Google Shopping and the principle of autonomous self-determination in Facebook as embedded in quasi-constitutional EU freedoms of free and fair competition for businesses and free choice for consumers
Primulina pingnanensis, a new species of Gesneriaceae from Guangxi, China
No full textA new species of Primulina, P. pingnanensis, from the Guangxi Zhuangzu Autonomous Region, China, is described and illustrated here. It is morphologically similar to P. orthandra but has significant differences in the bracts, corolla tube and lobes shape, as well as in the indumentum of the outer surface of the corolla, the filaments, the staminodes and the anthers. Colorful photographs and essential information of this new taxon are also provided, including detailed taxonomic description, distribution, habitat, the comparison table, and the IUCN conservation status. We also discuss a validation of new combination P. crassifolia and Chirita crassifolia
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