282 research outputs found
Flood Frequency in China's Poyang Lake Region: Trends and Teleconnections
Poyang Lake in Jiangxi Province is the largest freshwater lake in China and is historically a region of significant floods.Annual events of peak lake stage and of severe floods have increased dramatically during the past few decades. This trend
is related primarily to levee construction at the periphery of the lake and along the middle of the Changjiang (Yangtze
River), which protects a large rural population. These levees reduce the area formerly available for floodwater storage
resulting in higher lake stages during the summer flood season and catastrophic levee failures. The most severe floods
in the Poyang Lake since 1950, and ranked in descending order of severity, occurred in 1998, 1995, 1954, 1983, 1992,
1973, and 1977. All of these floods occurred during or immediately following El NiËœno events, which are directly linked
to rainfall in central China. The 2-year recurrence interval for maximum annual lake stage during El NiËœno years is 1.2 m
higher than during non-El NiËœno years. The 10-year recurrence interval is 1.4 m higher during El NiËœno years than during
non-El NiËœno years
Strategic assessment of the magnitude and impacts of sand mining in Poyang Lake, China
Planning for the extraction of aggregates is typically dealt with at a case to case basis, without assessing environmental impacts strategically. In this study we assess the impact of sand mining in Poyang Lake, where dredging began in 2001 after sand mining in the Yangtze River had been banned. In April 2008 concern over the impact on the biodiversity led to a ban on sand mining in Poyang Lake until further plans could be developed. Planning will require consideration of both sand extraction in relation to available sediment resources and also environmental impacts within the context of future demand for sand in the lower Yangtze Valley. We used pairs of near-infrared (NIR) Aster satellite imagery to estimate the number of vessels leaving the lake. Based on this we calculated a rate of sand extraction of 236 million m3 year-1 in 2005–2006. This corresponds to 9% of the total Chinese demand for sand. It qualifies Poyang Lake as probably the largest sand mining operation in the world. It also indicates that sand extraction currently dominates the sediment balance of the lower Yangtze River. A positive relation between demand for sand and GDP, revealed by historic data from the USA, suggests that the current per capita demand for sand in China might increase in the near future from 2 to 4 m3 year-1. We review various environmental impacts and question whether it will be possible to preserve the rich biodiversity of the lake, while continuing at the same time satisfying the increasing Chinese demand for sand. Finally we review alternative options for sand mining, in order to relieve the pressure from the Poyang Lake ecosyste
Reading Backwards: An Advance Retrospective on Russian Literature
The 'authors' in the list above are better described as 'contributors'.This is the final published version, also available from Open Book Publishers via the DOI in this record.This edited volume employs the paradoxical notion of ‘anticipatory plagiarism’—developed in the 1960s by the ‘Oulipo’ group of French writers and thinkers—as a mode for reading Russian literature. Reversing established critical approaches to the canon and literary influence, its contributors ask us to consider how reading against linear chronologies can elicit fascinating new patterns and perspectives. Reading Backwards: An Advance Retrospective on Russian Literature re-assesses three major nineteenth-century authors—Gogol, Dostoevsky and Tolstoy—either in terms of previous writers and artists who plagiarized them (such as Raphael, Homer, or Hall Caine), or of their own depredations against later writers (from J.M. Coetzee to Liudmila Petrushevskaia). Far from suggesting that past authors literally stole from their descendants, these engaging essays, contributed by both early-career and senior scholars of Russian and comparative literature, encourage us to identify the contingent and familiar within classic texts. By moving beyond rigid notions of cultural heritage and literary canons, they demonstrate that inspiration is cyclical, influence can flow in multiple directions, and no idea is ever truly original. This book will be of great value to literary scholars and students working in Russian Studies. The introductory discussion of the origins and context of ‘plagiarism by anticipation’, alongside varied applications of the concept, will also be of interest to those working in the wider fields of comparative literature, reception studies, and translation studies
Ucma/GRP inhibits phosphate-induced vascular smooth muscle cell calcification via SMAD-dependent BMP signalling
Vascular calcification (VC) is the process of deposition of calcium phosphate crystals in the blood vessel wall, with a central role for vascular smooth muscle cells (VSMCs). VC is highly prevalent in chronic kidney disease (CKD) patients and thought, in part, to be induced by phosphate imbalance. The molecular mechanisms that regulate VC are not fully known. Here we propose a novel role for the mineralisation regulator Ucma/GRP (Upper zone of growth plate and Cartilage Matrix Associated protein/Gla Rich Protein) in phosphate-induced VSMC calcification. We show that Ucma/GRP is present in calcified atherosclerotic plaques and highly expressed in calcifying VSMCs in vitro. VSMCs from Ucma/GRP(-/-) mice showed increased mineralisation and expression of osteo/chondrogenic markers (BMP-2, Runx2, beta-catenin, p-SMAD1/5/8, ALP, OCN), and decreased expression of mineralisation inhibitor MGP, suggesting that Ucma/GRP is an inhibitor of mineralisation. Using BMP signalling inhibitor noggin and SMAD1/5/8 signalling inhibitor dorsomorphin we showed that Ucma/GRP is involved in inhibiting the BMP-2-SMAD1/5/8 osteo/chondrogenic signalling pathway in VSMCs treated with elevated phosphate concentrations. Additionally, we showed for the first time evidence of a direct interaction between Ucma/GRP and BMP-2. These results demonstrate an important role of Ucma/GRP in regulating osteo/chondrogenic differentiation and phosphate-induced mineralisation of VSMCs.NWO ZonMw [MKMD 40-42600-98-13007]; FCT [SFRH/BPD/70277/2010]info:eu-repo/semantics/publishedVersio
Prospectus, April 26, 1977
VOTE TODAY-TOMORROW: FOUR VIE FOR PRES. IN STU-GO ELECTION; Remus, Mayeda run for V.P.; Albert Dodson unopposed; Activities Day May 3; Letters to the editor: Pres. Praises carnival, Mayeda warns of lies, Cartoon good…but, Stu-Go made many contributions: Onley; Editorial: Trouble for athletics; Hackett vs. Slack for convo., Cox opposes Stoeber for IOC; Unopposed: Propeck runs alone for secretary; Thursday set for wheel chair awareness; State provides funding for food sanitation course; Law Enforcement Club sponsors Mk\u27t Place fair; Markland: bigger not better for Twin City police force; Energy saving tips: Ripple effect causes waste; Police Chief Dye: \u27Recruitment-lifeline of police dep\u27t.\u27; Bike race today; Blooming Idiots come out of woodwork for IOC Carnival; Workshop set for Saturday: Puppetmaster Schmidt displays at PC; Afro American Theatre Workshop starts at PC; \u27Alcohol, sophisticated, sexy?\u27; Bike tour Sunday, May 1; Classifieds; Bat girls provide needed help for baseball team; Cobras expand record with 3rd no-hitter; Lincolnland doubleheader tomorrow: Women\u27s softball season nears end; June 7-10: Mudrock headed to JC golf nationalshttps://spark.parkland.edu/prospectus_1977/1018/thumbnail.jp
Greening China naturally
Author Posting. © The Author(s), 2011. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in AMBIO: A Journal of the Human Environment 40 (2011): 828-831, doi:10.1007/s13280-011-0150-8.China leads the world in afforestation, and is one of the few countries whose forested area is increasing. However, this massive ‘‘greening’’ effort has been less effective than expected; afforestation has sometimes produced unintended environmental, ecological, and socioeconomic consequences, and has failed to achieve the desired ecological benefits. Where afforestation has succeeded, the approach was tailored to local environmental
conditions. Using the right plant species or species composition for the site and considering alternatives such as grassland restoration have been important success factors. To expand this success, government policy should shift from a forest-based approach to a results-based approach. In addition, long-term monitoring must be implemented to provide the data needed to develop a cost-effective, scientifically informed restoration policy.This work was supported by the Fundamental Research Funds for the Central Universities (HJ2010-3) and the CAS/ SAFEA International Partnership Program for Creative Research Teams of ‘‘Ecosystem Processes and Services’’
OSSOS. IV. DISCOVERY OF A DWARF PLANET CANDIDATE IN THE 9 : 2 RESONANCE WITH NEPTUNE
We report the discovery and orbit of a new dwarf planet candidate, 2015 RR245, by the Outer Solar System Origins Survey (OSSOS). The orbit of 2015 RR245 is eccentric (e = 0.586), with a semimajor axis near 82 au, yielding a perihelion distance of 34 au. 2015 RR245 has g - r = 0.59 +/- 0.11 and absolute magnitude H-r = 3.6 +/- 0.1; for an assumed albedo of p(V) = 12%, the object has a diameter of similar to 670. km. Based on astrometric measurements from OSSOS and Pan-STARRS1, we find that 2015 RR245 is securely trapped on ten-megayear timescales in the 9: 2 mean-motion resonance with Neptune. It is the first trans-Neptunian object (TNO) identified in this resonance. On hundred-megayear. timescales, particles in 2015 RR245-like orbits depart and sometimes return to the resonance, indicating that 2015 RR245 likely forms part of the long-lived metastable population of distant TNOs that drift between resonance sticking and actively scattering via gravitational encounters with Neptune. The discovery of a 9: 2 TNO stresses the role of resonances in the long-term evolution of objects in the scattering disk. and reinforces the view that distant resonances are heavily populated in the current solar system. This object further motivates detailed modeling of the transient sticking population.Peer reviewe
Transcultural adaptation of the Emotion Matching Task: an emotion neuropsychological assessment
Emotions play a central role in children’s relationships. Deficits in emotional understanding have been associated with several neuropsychiatric disorders. In Brazil, however, few psychological instruments are available to assess young children’s emotional development. The objective of the present study was to make a transcultural adaptation of the Emotion Matching Task (EMT). The EMT was translated and adapted by a team of bilingual researches and then back-translated to English. The preliminary versions were assessed by EMT’s authors and by Brazilians specialized judges. The final version was applied in a sample of 50 children between three and six years of age and answered by nine judges in three Brazilian states. The results indicate good semantic equivalence and good agreement with the answers provided (κ= 0.88, Z=95.2, p<0.001). The final version of the EMT was considered appropriate and satisfactory
Riding on the Coat-Tails of Traditional Cultural Expressions
Matters related to the protection of traditional cultural expressions (‘TCEs’) or expressions of folklore (‘EoFs’) are sensitive and intricate as a blend of legal, economic, philosophical and anthropological considerations jostle to capture their core features. This results in disparate views surrounding what should qualify as TCEs or EoFs, who should be considered their ‘owner’ (assuming that ownership per se is conceptually compatible with these items), which is the most appropriate legal protection regime and how broad their scope of protection should be. Drawing from these various accounts on TCEs, this article focuses on the interaction between TCEs and EoFs originating on the European continent and the European Union (‘EU’) trade mark legislation. Specifically, this article examines whether the limitations of the effects of trade mark rights and of the absolute grounds of refusal, as developed by the case law of the Court of Justice of the European Union, are effective in preserving the cohesion of TCEs. This article advances the thesis that registration of TCEs and EoFs as trade marks generates an imbalance between the rights of the trade mark owner and the defences available to others under the EU trade mark law framework. Furthermore, such an imbalance is likely to hinder the unfettered circulation of TCEs and undermine their original meaning. Lastly, in some cases, trade mark registration of TCEs contributes to their appropriation and misappropriation. The article concludes that, de lege ferenda, the direct exclusion of TCEs as eligible subject matter for trade mark registration is preferable to seeking a post factum remedy
OSSOS. VII. 800+Trans-Neptunian Objects-The Complete Data Release
The Outer Solar System Origins Survey (OSSOS), a wide-field imaging program in 2013-2017 with the Canada-France-Hawaii Telescope, surveyed 155 deg(2) of sky to depths of m(r) = 24.1-25.2. We present 838 outer solar system discoveries that are entirely free of ephemeris bias. This increases the inventory of trans-Neptunian objects (TNOs) with accurately known orbits by nearly 50%. Each minor planet has 20-60 Gaia/Pan-STARRS-calibrated astrometric measurements made over 2-5 oppositions, which allows accurate classification of their orbits within the trans-Neptunian dynamical populations. The populations orbiting in mean-motion resonance with Neptune are key to understanding Neptune's early migration. Our 313 resonant TNOs, including 132 plutinos, triple the available characterized sample and include new occupancy of distant resonances out to semimajor axis a similar to 130 au. OSSOS doubles the known population of the nonresonant Kuiper Belt, providing 436 TNOs in this region, all with exceptionally high-quality orbits of a uncertainty sigma(a)Peer reviewe
- …