Specifics of geological composition, geochemistry and geochronology of rocks from the Kresty alkaline-ultrabasic massif (Maimecha-Kotui province, Polar Siberia)

In this work, we demonstrate new data that allows us to accurate geochronological ranges of formation of the Kresty alkaline-ultrabasic massif, which is considered to be a satellite of the Gulinian giant pluton. We also interpreted geological, geochemical and isotope-geochemical data obtained earlier for major varieties of this volcanic-plutonic association taking into account new geochronological results, as well as considered new aspects/information on matter source of alkaline-ultrabasic massifs from this province. One of the main aspects is interaction of Siberian super plume matter with hosting substrate of Siberian craton continental crust

THE NATURE OF ULTRAMAFIC XENOLITHS IN THE BASALTS OF LANZAROTE ISLAND (CANARY ARCHIPELAGO)

Mineralogical and geochemical study was performed on peridotite xenolith hosted by amygdaline basalts of Lanzarote Island (Canary archipelago). Their modal composition corresponds to harzburgite. Remarkably, the petrographic composition of the rocks is marked by presence of plagioclase. The isochron shows the age of 267±35 Ma, which might be the initial stage of opening a fragment of the Atlantic Ocean. The peridotites were apparently derived in the magmatic chamber formed by "underplating" triggered by interaction of mantle substrate with the lower crust material

Knowledge protection in firms: A conceptual framework and evidence from HP Labs

This paper proposes a simple framework to examine organizational methods of knowledge protection. The framework highlights a basic trade‐off between improving decision‐making and innovation through communication and mitigating security risks by imposing restrictions on communication flows. The trade‐off is mediated by factors such as the sensitivity of information, the degree to which employees can be trusted to handle sensitive information appropriately, and firms’ investments in legal protection mechanisms. Evidence from HP Labs supports the basic predictions of the model, in particular the importance of employee trustworthiness and internalized codes of behavior in promoting open communication. Our interviews also suggest a potential conflict between two of the most important appropriability mechanisms: secrecy and lead‐time advantage

Reduced emissions from deforestation and forest degradation (REDD): a climate change mitigation strategy on a critical track

<p>Abstract</p> <p>Background</p> <p>Following recent discussions, there is hope that a mechanism for reduction of emissions from deforestation and forest degradation (REDD) will be agreed by the Parties of the UNFCCC at their 15th meeting in Copenhagen in 2009 as an eligible action to prevent climate changes and global warming in post-2012 commitment periods. Countries introducing a REDD-regime in order to generate benefits need to implement sound monitoring and reporting systems and specify the associated uncertainties. The principle of conservativeness addresses the problem of estimation errors and requests the reporting of reliable minimum estimates (RME). Here the potential to generate benefits from applying a REDD-regime is proposed with reference to sampling and non-sampling errors that influence the reliability of estimated activity data and emission factors.</p> <p>Results</p> <p>A framework for calculating carbon benefits by including assessment errors is developed. Theoretical, sample based considerations as well as a simulation study for five selected countries with low to high deforestation and degradation rates show that even small assessment errors (5% and less) may outweigh successful efforts to reduce deforestation and degradation.</p> <p>Conclusion</p> <p>The generation of benefits from REDD is possible only in situations where assessment errors are carefully controlled.</p

ПРИРОДА УЛЬТРАБАЗИТОВЫХ КСЕНОЛИТОВ В БАЗАЛЬТАХ ОСТРОВА ЛАНСАРОТЕ (КАНАРСКИЙ АРХИПЕЛАГ)

Mineralogical and geochemical study was performed on peridotite xenolith hosted by amygdaline basalts of Lanzarote Island (Canary archipelago). Their modal composition corresponds to harzburgite. Remarkably, the petrographic composition of the rocks is marked by presence of plagioclase. The isochron shows the age of 267±35 Ma, which might be the initial stage of opening a fragment of the Atlantic Ocean. The peridotites were apparently derived in the magmatic chamber formed by "underplating" triggered by interaction of mantle substrate with the lower crust material.Проведено минералого-геохимическое изучение перидотитового ксенолита из миндалекаменных базальтов острова Лансароте (Канарский архипелаг), модальный состав которого отвечает гарцбургиту. Одной из особенностей петрографического состава пород является присутствие небольшого количества (≤2 об. %) плагиоклаза. По результатам Sm-Nd изотопных исследований минералов и валового состава породы была получена изохрона, отвечающая возрасту 267±35 млн лет, который может соответствовать начальному этапу раскрытия одного из фрагментов Атлантического океана. Высказано предположение, что образование перидотитов происходило в магматической камере, которая была сформирована в результате «андерплэйтинга», за счет взаимодействия мантийного субстрата c материалом нижней коры

The Victorian Newsletter (Spring 1979)

The Victorian Newsletter is sponsored for the Victorian Group of the Modern Language Association by the University of Florida and is published twice annually.Déjà vu Inverted: the Imminent Future in Walter Pater's Marius the Epicurean / William E. Buckler -- Rights, Reason, and Redemption: Charlotte Brontë's Neo-Platonism / Sara Moore Putzell -- Tractarian Aesthetics: Analogy and Reserve in Keble and Newman / G. B. Tennyson -- Bruising the Serpent's Head: Typological Symbol in Victorian Poetry / George P. Landow -- High Tea and Matzo Balls: Religion in the Victorian Jewish Novel / Linda Gertner Zatlin -- Hardy, Barnes, and the Provincial / Donald Wesling -- Father and Mother in Father and Son / E. Pearlman -- Time in Nicholas Nickelby / Patricia Marks -- In Which a Poet is Frightened by a Lion: The Philosophical Context of Mill's Poetic Theory / Jonathan Loesburg -- Books Received -- Victorian Group New

The wisdom of the crowd playing The Price Is Right

In The Price Is Right game show, players compete to win a prize, by placing bids on its price. We ask whether it is possible to achieve a “wisdom of the crowd” effect, by combining the bids to produce an aggregate price estimate that is superior to the estimates of individual players. Using data from the game show, we show that a wisdom of the crowd effect is possible, especially by using models of the decision-making processes involved in bidding. The key insight is that, because of the competitive nature of the game, what people bid is not necessarily the same as what they know. This means better estimates are formed by aggregating latent knowledge than by aggregating observed bids. We use our results to highlight the usefulness of models of cognition and decision-making in studying the wisdom of the crowd, which are often approached only from non-psychological statistical perspectives

Inside Organizations: Pricing, Politics, and Path Dependence

When economists have considered organizations, much attention has focused on the boundary of the firm, rather than its internal structures and processes. In contrast, this review sketches three approaches to the economic theory of internal organization—one substantially developed, another rapidly emerging, and a third on the horizon. The first approach (pricing) applies Pigou's prescription: If markets get prices wrong, then the economist's job is to fix the prices. The second approach (politics) considers environments where important actions inside organizations simply cannot be priced, so power and control become central. Finally, the third approach (path dependence) complements the first two by shifting attention from the between variance to the within. That is, rather than asking how organizations confronting different circumstances should choose different structures and processes, the focus here is on how path dependence can cause persistent performance differences among seemingly similar enterprises