541 research outputs found
Jacob Viner’s Reminiscences from the New Deal (February 11, 1953)
No full textThis paper presents and reproduces an unpublished oral history interview given by Jacob Viner in 1953. The interview released by Viner for the Columbia Oral History Project gives us a valuable opportunity to throw light on his advisory activity during the New Deal Era. In our introduction we attempt to make a critical appraisal of Viner's reminiscences and to state the contribution they can provide to our general knowledge of the period. In addition, we also attempt to find out some biographical and interpretative elements useful to understand Viner’s own vision and his contribution to important economic policy processes during the New Deal.
Three-dimensional measurements of heavy and light particle dispersion in shear turbulence
No full textWe present new experimental data concerning the statistics of heavy and light particles dispersed at low concentrations in a homogeneous turbulent shear flow. Information on both the spatial distribution and on the relative velocity of the dispersed phases is obtained by accurate three-dimensional optical measurements, and will allow to comparatively discuss the issues of turbulent clustering and small scale anisotropy by analyzing the scale- and angular dependence of suitable particle observables computed in the two cases
Fog computing, applications , security and challenges, review
No full textThe internet of things originates a world where on daily basis objects can join the internet and interchange information and in addition process, store, gather them from the nearby environment, and effectively mediate on it. A remarkable number of services might be imagined by abusing the internet of things. Fog computing which is otherwise called edge computing was introduced in 2012 as a considered is a prioritized choice for the internet of things applications. As fog computing extend services of cloud near to the edge of the network and make possible computations, communications, and storage services in proximity to the end user. Fog computing cannot only provide low latency, location awareness but also enhance real-time applications, quality of services, mobility, security and privacy in the internet of things applications scenarios. In this paper, we will summarize and overview fog computing model architecture, characteristic, similar paradigm and various applications in real-time scenarios such as smart grid, traffic control system and augmented reality. Finally, security challenges are presented
JACOB CORNELISZ VAN OOSTSANEN IN STROSSMAYER GALERIE
No full textU jednoj poslijeratnoj akviziciji Strossmayerove galerije JAZU (ulje na drvetu 1,295 x 0,840 m), autor ovog teksta prepoznaje djelo Jacoba Cornelisza van Oostsanena (oko 1470-1533). Citira komparativni materijal iz Kassela i Berlina, pa predpostavlja da su zagrebački sveti Jakob i Katarina morali nastati oko 1515. godine. Aluzije na njemački renesansni krug slikara autor objašnjava popularnošću Durerovih grafika u Nizozemskoj, što je više nego očigledno u drvorezbarskom opusu Jacoba Cornelisza. Na osnovu prenaglašenog kontraposta unutar čvrste tektonske kompozicije, otvara se ovdje pitanje o maniri kao preteči manirizma. U daljem tekstu autor povezuje zaštitničku ulogu svetaca s ondašnjom pripadnošću Nizozemske španjolskoj kruni. Naime, u toplini i bogatstvu pejzaža iza svete Katarine, autor vidi urbanizirani Sjever, za razliku od dalekog, pustog i siromašnog krajobraza Španjolske u pozadini svetoga Jakoba.In an acquisition made by the Strossmayer Gallery of the Yugoslav Academy of Sciences and Art (oil on wood 1,295 x 0,840 m) after World War II, the author of this text recognizes a work by Jacob Cornelisz van Oostsanen (c. 1470-1533). He quotes comparative material from Kassel and Berlin, supposing that the painting of St Jacob and St Catherine in Zagreb must have originated about 1515. Allusions to the German circle of Renaissance painters are explained by the author as resulting from the popularity of Durer's prints in the Netherlands, quite evident in the woodcuts of Jacob Cornelisz. The overstressed counterpoint existing within this firm tectonic composition confronts us here with the question of manner as a forerunner of mannerism. The author further relates the protective role of the saints with the fact that the Netherlands were
ruled by the Spanish crown at that period: in the warmth and lusciousness of the landscape behind St Catherine the author sees an urbanized North, contrasted to the distant, barren and deserted Spanish vista in the background of St Jacob.ln einem in den Nachkriegsjahren fur die Strossmayer-Galerie der Jugoslawischen Akademie der Wissenschaften und Kunste in Zagreb erworbenen Gemalde (Oel auf Ho/z, 1,295xO,840 m) erkennt der Verfasser ein Werk des Jacob Comelisz van Oostsanan (um 1470-1533). Er fuhrt Vergleichsmaterial aus Kassel und Berlin an, und setzt voraus, daf3 das Zagreber Bild des hl. Jakob und der hl. Katharina um 1515 entstanden ist. Anklange an den Kreis der deutschen Renaissancemaler erklart der Verfasser mit der Volkstumlichkeit von Durers graphischen Werken in Holland, was auch bei den Holzstichen von Jacob Comelis klar zutage tritt. Aufgrund des uberbetonten Kontrapostes innerhalb einer festen tektonischell Komposition stellt sich die Frage der Manier als Vo ria uf erin des Manierismus. lm weiteren Text stellt der Verfasser die Patronatsrolle der beiden Heiligen in Verbindung mit der damaligen Zugehorigkeit von Holland zur Spanischen Krone. Er sieht namlich in der Warme und Vielfa ltigkeit des landschaftlichen Hintergrunds der hl. Katharina den urbanisierten Norden, im Gegensatz zu der femen, eins amen und wi1sten Landschaft Spaniens im Hintergrund des hl. Jakobs
Investigating lipid corona formation onto polystyrene nanoparticles through fluorescence correlation spectroscopy
No full textWhen a nanoparticle enters a biological environment, molecules are known to adsorb on the surface forming a corona. Systematically studying the formation of a corona is important to develop knowledge as to how a given nanomaterial will transform once entering a biological environment. A common interface met by a nanomaterial in the human body is the cell membrane, which is composed of phospholipid bilayer. Fluorescence correlation spectroscopy (FCS) is a promising tool that can be used to probe nanoparticle-cell interactions. FCS experiments focusing on exposure of lipid vesicles to different polystyrene nanoparticles indicate possible formation of a lipid corona. Further study varying the nanoparticle charge and lipid vesicle fluidity can help elucidate the mechanism of lipid corona formation. Such work can provide insight into understanding the complex nature of the nano-bio interface.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2017-12-01The student, Lisa Jacob, accepted the attached license on 2015-12-08 at 15:54.The student, Lisa Jacob, submitted this Thesis for approval on 2015-12-08 at 16:14.This Thesis was approved for publication on 2015-12-08 at 16:53.DSpace SAF Submission Ingestion Package generated from Vireo submission #8972 on 2016-03-02 at 14:07:53Made available in DSpace on 2016-03-02T20:24:17Z (GMT). No. of bitstreams: 2
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Remains of the ruined romanesque church of St. Jacob in Zemunik
No full textU članku se iznose povijesni podatci o srednjovjekovnoj crkvi sv. Jakova
u Zemuniku koja se u povijesnim izvorima spominje prvi put u zadnjem
kvartalu 14. stoljeća. Međutim, na grobljanskoj crkvi sv. Kate uzidan je
romanički portal s natpisom u luneti, koji svjedoči da je Zadranka Kaća
podigla crkvu sv. Jakova 1194. godine. Prigodom nedavne obnove crkve
sv. Kate, otučena je žbuka sa zapadnog zida crkve i na njemu su uočeni
ostatci staroga pročelja romaničke crkvice kojoj je pripadao i spomenuti
portal. Taj je, međutim, pri gradnji crkve sv. Kate u 18./19. stoljeću izmješten sa svojega izvornog mjesta. U članku se predlaže grafička rekonstrukcija izvornog romaničkog pročelja crkvice sv. Jakova.A Romanesque portal with an inscription in the lunette was built into the church of St. Catherine in Zemunik Donji in the hinterland of Zadar. The named inscription testifies that a lady from Zadar named Kaća was responsible for building a church dedicated to St. Jacob. The inscription is dated to the year 1194, i.e. the period of the rule of the Hungarian king Bela III and the Zadar Duke Damjan. As the mentioned church
of St. Catherine is a relatively new structure from the 18th or beginning of the 19th century, it was believed that the Romanesque portal came to Zemunik from a different historical structure dedicated to St. Jacob, most probably from Zadar. That interpretation was further enforced by the mention of the Zadar Duke Damjan in the inscription, which means that the portal was mounted on a church built on the territory of the mediaeval Zadar municipality. According to older authors (Mate Suić), the continental territory of the Zadar municipality (astarea) did not include Zemunik, because it is relatively far from Zadar (cca 12km). It was believed that the Zadar territory stretched to the first villages in the hinterland of the city, to the Diklo – Bokanjac - Babin dub – Bibinje line respectively, an area which was inherited from the Roman era. It is actually the ager centuriatus of the Roman colony which is well documented in aerial documentation. However, it was overlooked that the area under the governance of the magistrate of the Roman colony was much larger, because it included the lands used for pasture and as forest space, which were indispensable for the city. This area stretched out to the Grusi – Murvica – Zemunik line, which is clearly proven in recent discussions. As the medieval Zadar municipality inherited the land of the Roman municipality, Zemunik was thus included, so the mention of the Duke of Zadar on an inscription in Zemunik is not at all peculiar. It is only peculiar that the inscription mentions the church of St. Jacob (which is unknown in Zemunik) and not the church of St. Catherine.
In this article, the author relays the archived news, which he first published in 1997, about the information that the church in mediaeval Zemunik was dedicated to St. Jacob. From this, it is evident that the portal from 1194 was always in Zemunik, mounted on the previous church of St. Jacob.
In the past several years a reconstruction was completed on the church of St. Catherine according to the plans of J. Buble – Brkić from 2008. For that event, the plaster was chiselled off of the entire church as well
as off the lengthwise western wall into which the previously mentioned portal was built. The structure of an older building with a width of about 5m and a preserved height of about 2m, recognized as the previous
façade of the mediaeval church of St. Jacob, was discovered in the building structure of the western wall (the lateral wall of the church of St. Catherine which is unusually oriented in the direction North-South).
We can make out the original place where the mentioned Romanesque portal was located, which was moved further south along the same wall in the 18th / 19th centuries. The author presents a notional reconstruction
of the Romanesque façade of the church from 1194. For that notional reconstruction, the author used building elements which are preserved from a different Romanesque church in Zadar, the church of St.
Martin in Diklo. It was proven that the facades of both buildings were equally wide, and that the Romanesque portals of both churches were almost exactly the same in their proportions and plans. Both portals have the same dimensions and in both of their lunettes there is a votive inscription in which the names of the donors and saints to which the church is dedicated are specifically noted. Thus, the author suggests that
in terms of its size the church of St. Jacob can be perceived to be the same as the one of St. Martin in Diklo. Both are without a doubt built in the second half of the 12th century, although the church of St. Martin in
Diklo is older. It is mentioned in archived sources for the first time in 1194 in a document of Pope Celeste III (...ecclesiam S. Martini Yculi cum pertinenriis suis), which is the exact same year in which the church of St. Jacob in Zemunik was just built
Interfacial adhesion of thin film high energy density anode materials
No full textFuture energy storage needs are rapidly moving beyond the capabilities of current Li-ion battery technologies. The demand for greater energy density, performance, and longevity has led to the development of numerous three-dimensional (3D) structured anodes that can leverage the incredible Li storage capacity of silicon. A common feature among many 3D structured anodes is the use of a nickel (Ni) current collector scaffold coated with amorphous silicon (a-Si) active material. Despite the importance of a-Si remaining adhered to the Ni scaffold during cycling, little work has been done to study the interface strength of Ni/a-Si systems. Here, we investigate Ni/a-Si interfacial adhesion strength through the technique of laser spallation (LS) combined with finite element analysis (FEA). It was found that the Ni/a-Si interface can withstand at least ~250 MPa in tension before failure is initiated. Tests at higher stress levels were inconclusive due to consistent failure of the sample at the substrate/a-Si interface rather than the Ni/a-Si interface. Results also showed that the adhesion strength of Ni/a-Si was much weaker when a-Si was deposited by chemical vapor deposition (CVD) rather than electron-beam (e-beam) evaporation. This study brings insight to the durability Ni/a-Si structured anodes and will prove valuable in the design of future battery technologies.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-12-01The student, Jacob Diamond, accepted the attached license on 2020-10-16 at 11:05.The student, Jacob Diamond, submitted this Thesis for approval on 2020-10-16 at 11:15.This Thesis was approved for publication on 2020-10-21 at 08:48.DSpace SAF Submission Ingestion Package generated from Vireo submission #15837 on 2021-03-04 at 16:19:21Made available in DSpace on 2021-03-05T21:40:40Z (GMT). No. of bitstreams: 2
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Did Reagan Rule In Vain? A Closer Look at True Expenditure Levels in the United States and Europe
No full textConventional wisdom holds that the United States is a country of low taxes and small government, while the European countries have much larger governments with a higher tax burden. Fully measuring the role of government in a society, however, requires more than a comparison of tax burdens or the gross size of government spending in GDP terms. A proper accounting of the total share of national economic output allocated to governmental tasks and social expenditures in the United States and Europe calls this supposed transatlantic difference into question. European countries do have a much higher tax burden than the United States. However, healthcare and educational services, including tertiary education, are overwhelmingly provided by the government in Europe, while in the United States these services are much more often provided through the private sector. When private-sector spending on education and healthcare are combined with total government spending, the share of GDP allocated to these typically governmental functions in the United States is nearly identical to that in most European countries. Likewise, European countries have much higher levels of public social expenditures than the United States, but when the tax treatment of social benefits and tax breaks targeted to social purposes are considered, total public and private-sector social expenditures in the United States and Europe are quite similar. Thus there is very little difference between the United States and Europe in the share of resources allocated to governmental tasks and social expenditures, with the exception of much higher US private-sector healthcare expenditures. There is, however, little empirical evidence that higher private-sector US healthcare spending produces noticably better healthcare outcomes. Equal existing total levels of expenditures suggests that reform of US social and economic institutions does not require greater total resources, but instead an adjustment of how and to what purposes these resources are allocated. The more extensive provision of frequently tax-benefitted governmental and social services indirectly through the private sector in the United States further shields recipient groups from the public scrutiny usually given to direct government transfers. Similarly, tax-benefitted indirect services provision may explain why Americans are more hostile to higher taxes than Europeans, who generally receive these services as a direct quid pro quo from their governments and are thus likely more disposed to paying taxes.
Utilization of fine recycled concrete aggregate and alternative testing for controlled low-strength materials
No full textU of I Only Restriction Lifted for Item 109794 on 2021-02-08T10:15:32Z.With ever-increasing emphasis on sustainability, recycling concrete as aggregate has continued to be an important topic. While the use of the coarse fraction of recycled concrete has become commonplace, the fine fraction is largely regarded as a waste material with few outlets for its use. In this thesis, the use of recycled fine concrete aggregate is investigated for use as a source of internal curing in new concrete and as the aggregate in controlled low-strength materials. Characterization of the recycled fine concrete aggregate did not indicate the presence of appreciable quantities of reactive materials, but the recycled aggregates do possess high absorption capacities, which indicates a potential for internal curing. The ability to provide internal curing is tested using autogenous shrinkage measurements. The mixture design method previously develop for controlled low-strength materials is further validated using alternative material combinations. In addition, dynamic cone penetrometer testing and accelerated curing methods are applied to the controlled low-strength material in order to better characterize the strength of the material. The internal curing tests indicated a potential for recycled aggregates to be used for internal curing. The results from the mixture design validation support the previous conclusions that slump flow is highly reliant on the paste volume. The subsidence and strength are both tied to the cement content and the water to cementitious ratio. The findings of the dynamic cone penetrometer tests suggest that it is a viable in situ test for controlled low-strength material. The in situ testing are then correlated with the unconfined compressive strength. Using elevated temperatures to cure controlled low-strength materials did result in significant strength increases over room temperature curing. The higher early strengths from the accelerated curing provides valuable information on the maximum strength that can be achieved from a mixture. The strength gain as a function of time and temperature is modeled for controlled low-strength materials using virgin fine aggregates.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-12-01The student, Jacob Henschen, accepted the attached license on 2018-08-13 at 11:10.The student, Jacob Henschen, submitted this Dissertation for approval on 2018-08-13 at 11:18.This Dissertation was approved for publication on 2018-08-14 at 09:35.DSpace SAF Submission Ingestion Package generated from Vireo submission #12971 on 2019-02-07 at 14:15:59Made available in DSpace on 2019-02-07T20:35:50Z (GMT). No. of bitstreams: 3
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Anomaly cancellation in effective supergravity from the heterotic string with an anomalous U(1)
No full text© 2019 The Author(s) We show that a choice of Pauli-Villars regulators allows the cancellation of all the conformal and chiral anomalies in an effective field theory from Z3 compactification of the heterotic string with two Wilson lines and an anomalous U(1)
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