968 resultados para Chebyshev polynomials of the first kind


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Aufbauend auf dem analytischen Tool des Totalen Krieges (vgl. den Artikel des Autors zu Controversy Total War in 1914-1918-Online) werden im vorliegenden Beitrag die Anstrengungen Chinas im Ersten Weltkrieg zu denjenigen anderer nicht europäischer Länder wie Australien, Südafrika oder Indien in Bezug gesetzt. Dabei wird das Ziel verfolgt, den globalen Charakter eines Konfliktes deutlich zu machen, der zurecht als erster Weltkrieg bezeichnet wird und in welchem China sicherlich eine weit bedeutsamere Rolle spielte, als es gemeinhin in der Historiographie dargestellt wird. Ursprünglich wurde der Beitrag als Antwort auf die Frage konzipiert, warum nicht nur China für eine Globalgeschichte des Ersten Weltkrieges von Bedeutung war. Im Verlauf der Übersetzung wurde der Titel dahingehend angepasst, dass stärker die Bedeutung von Chinas Rolle im Ersten Weltkrieg betont wurde.

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Electronic books (e-book) are an interesting option compared to classic paper books. Most e-reading devices of the first generation were based on e-ink technology. With the appearance of the Apple iPad on the market, TFT-LCDs became important in the field of e-reading. Both technologies have advantages and disadvantages but the question remains whether one or the other technology is better for reading. In the present study we analyzed and compared reading behavior when reading on e-inkreader (e-ink displays) and on tablets (TFT-LCDs) as measured by eye-tracking. The results suggest that the reading behavior on tablets is indeed very similar to the reading behavior on e-ink-reader. Participants showed no difference in fixation duration. Significant differences in reading speed and in the proportion of regressive saccades suggest that tablets, under special artificial light conditions, may even provide better legibility.

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Presentation of the main findings of the first ESIL IEL IG Conference in Göttingen in March 2014. The conference provided a thorough overview over all of the current legal issues relating to preferentialism. Particularly the discussions on the role of academia in solving these new challenges in global trade regulation were perceived as fruitful and inspiring.

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This briefing is an input to the discussions that will take place in the session “Privacy under mass surveillance: a multi-stakeholder international challenge” to be held on November 9th in João Pessoa, Brazil, during the “Day Zero” of the Internet Governance Forum. This document is one of the outputs of the first phase of the project “Privacy in the digital age: fostering the implementation of the bilateral German-Brazilian strategy in response to massive data collection”, jointly developed by the Center for Technology and Society of the Rio de Janeiro Law School of the Getulio Vargas Foundation and the German Institute for International and Security Affairs (SWP), with the support of FGV. The project Privacy in the Digital Age seeks to identify legal, political, technical, and economic incentives for the implementation of resolution 168/67 on Privacy in the Digital Age, proposed by Germany and Brazil, and approved by the United Nations General Assembly and to identify other potential areas of collaboration between Germany and Brazil in the field of Internet Governance.

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The Miocene Climatic Optimum (~17-14.7 Ma) represents one of several major interruptions in the long-term cooling trend of the past 50 million years. To date, the processes driving high-amplitude climate variability and sustaining global warmth during this remarkable interval remain highly enigmatic. We present high-resolution benthic foraminiferal and bulk carbonate stable isotope records in an exceptional, continuous, carbonate-rich sedimentary archive (Integrated Ocean Drilling Program Site U1337, eastern equatorial Pacific Ocean), which offer a new view of climate evolution over the onset of the Climatic Optimum. A sharp decline in d18O and d13C at ~16.9 Ma, contemporaneous with a massive increase in carbonate dissolution, demonstrates that abrupt warming was coupled to an intense perturbation of the carbon cycle. The rapid recovery in d13C at ~16.7 Ma, ~200 k.y. after the beginning of the MCO, marks the onset of the first carbon isotope maximum within the long-lasting "Monterey Excursion". These results lend support to the notion that atmospheric pCO2 variations drove profound changes in the global carbon reservoir through the Climatic Optimum, implying a delicate balance between changing CO2 fluxes, rates of silicate weathering and global carbon sequestration. Comparison with a high-resolution d13C record spanning the onset of the Cretaceous Oceanic Anoxic Event 1a (~120 Ma ago) reveals common forcing factors and climatic responses, providing a long-term perspective to understand climate-carbon cycle feedbacks during warmer periods of Earth's climate with markedly different atmospheric CO2 concentrations.

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Fine-grained clay subfractions (SFs) with particle size of <0.1, 0.1-0.2, 0.2-0.3, 0.3-0.6, 0.6-2.0, and 2-5 µm separated from claystone of Upper Precambrian Pumanskaya and Poropelonskaya formations on the Srednii Peninsula were studied by transmission electron microscopy, X-ray diffraction, and Rb-Sr methods. All subfractions consist of low-temperature illite and chlorite, and contribution of chlorite decreases with diminishing particle size. The crystallinity index and I002/I001 ratio increase from coarse- to fine-grained SFs. Leaching by ammonium acetate solution and Rb-Sr systematics in combination with mineralogical and morphological data indicate that illite in Upper Proterozoic claystone from the Srednii Peninsula formed during three time intervals: 810-830, 610-620, and about 570 Ma ago. The first generation of this mineral with low Rb/Sr ratio dominates in coarse-grained SFs while the second and third generations with a high Rb/Sr ratio prevail in fine-grained SFs. All of three generations are known in Poropelon claystone, whereas Puman claystone contains only illite of the first and second generations. Geological processes responsible for multistage illite evolution in claystones are discussed.

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On Vermilion Sea Expedition two research vessels among which the R/V Spencer F. Baird conducted a geological and geophysical exploration of the Gulf of California from February to May, 1959. Support was obtained from the Office of Naval Research and the Bureau of Ships of the U. S. Navy and from a grant of the American Petroleum Institute. Study of the canyons was one feature of the first part of the expedition. Submarine canyon studies were directed by Francis P. Shepard, Professor of Submarine Geology, aboard the research vessel Spencer F. Baird. The expedition found that the narrow channel between Angel de la Guarda Island, toward the head of the Gulf, and the peninsula is scoured almost free of sediments by strong currents. On the other side of Angel de la Guarda Island, between it and the mainland, one of the dredge hauls brought up a manganese nodule. It came from a depth of approximately 1500 feet. This is the shallowest water in which the nodules have been found. Studies have been under way some time on the feasibility of mining such nodules from the sea floor. They contain cobalt, nickel, copper and other valuable metals. (also in, Scripps Institution of Oceanography Vermilion Sea Expedition to the Gulf of California, http://library.ucsd.edu/dc/object/bb34484017)

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[pt. I.] A reference index.--pt. II. A subject index, with additional reference index.

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List of papers read at the annual conventions, included in volumes for 1908-1910.

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List of members in each volume; cumulative necrological list, in volumes for 1896- ; obituaries of members in volumes for 1891, 1893, 1895-

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At head of title: Smithsonian Institution. United States National Museum.

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Proceedings of the first annual meeting never published.

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Running title: Proceedings of the first conference ...

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Title varies slightly.