2,346,165 research outputs found
Resisting general models: Response to comments on van der Veer, Peter. 2016. The value of comparison. Durham, NC: Duke University Press.
Get PDFResponse to comments on van der Veer, Peter. 2016. The value of comparison. Durham, NC: Duke University Press
Author Keynote: Dr. Bessel van der Kolk
No full textCWU Libraries and the Institute of Museum and Library Services are pleased to virtually bring Dr. Bessel van der Kolk to CWU and the Ellensburg community as part of our Community Resilience in Times of Changes series. Renowned trauma expert Dr. van der Kolk\u27s seminal work, The Body Keeps the Score; Brain, Mind, and Body in the Healing of Trauma, has been hailed as An authoritative guide to the effects of trauma, and pathways to recovery. (Rachel Yehuda, Ph.D.) Dr. van der Kolk has spent his career studying how people adapt to traumatic events. He is the president of the Trauma Research Foundationhttps://digitalcommons.cwu.edu/libraryevents/1243/thumbnail.jp
Stabiliteit breuksteen bij ondiepe voorlanden
No full textBij WL is onderzoek uitgevoerd naar stabiliteit van breukstenen taluds bij (zeer) ondiepe voorlanden. De paper voor Coastal Structures 2003 "Stability of rock slopes with shallow foreshores" door van Gent, Smale en Kuiper is een samenvatting van het werk. Hierin wordt voorgesteld een andere periodemaat te nemen dan in de van der Meer formule en daarbij de coëfficiënten opnieuw te kalibreren. Uiteindelijk wordt een nieuwe formule voorgesteld waarin de periode invloed volledig is verdwenen
Stability of rock on slopes under wave attack: Comparison and analysis of datasets Van der Meer [1988] and Van Gent [2003]
Get PDFIn VAN GENT [2004] graphs were presented in which the datasets of VAN DER MEER [1988] and VAN GENT ET AL. [2003] were compared, but in this comparison a number of parameters were not correctly transformed into a comparable format. In this M.Sc. thesis after an extensive analysis to the datasets all parameters of the datasets of Van der Meer were transformed into the same format as the parameters used by Van Gent. In the same way the dataset of THOMPSON & SHUTTLER [1975], which formed the basis of the work of Van der Meer, was treated. The inclusion of correction factors for the effects of stone roundness from LATHAM ET AL. [1988] gave remarkable effects on a certain part of the dataset of Van der Meer which showed more damage than average. After this still differences could be seen between the datasets of Van der Meer and Van Gent. Using the statistical T-test these differences are approved. Explanations for the differences found between the datasets of Van der Meer and Van Gent can be found in the fact that most of the tests of Van Gent. were done with shallow foreshores where Van der Meer did most tests with deep water conditions. Tests by a number of M.Sc. students at Delft University of Technology showed that tests with identical spectra, but with different foreshore slope angles show different damage patterns. In the dataset of Van Gent also the 1:30 foreshore slopes on average show more damage than the 1:100 slopes. In further research the influence of the foreshore should be incorporated in the stability formulae by a foreshore Iribarren parameter. Also a detailed investigation to the effects of wave breaking on shallow foreshores is needed. For this the complete dataset of Van Gent needs to be available and accessible.Hydraulic EngineeringCivil Engineering and Geoscience
Introduction
No full textAgainst the background of the contentions and debate on the nation, national identity and national culture Van der Poll and Van der Zalm frame the concept of national plays by considering the characteristics of a national play and its different notions. As is shown in this chapter, the term is related to, but not identical to terms such as national theatre, ‘classic’ plays, and ‘state-of-the-nation’ plays—as defined in Nadine Holdsworth’s Theatre and Nation. Van der Poll and Van der Zalm demonstrate that, whereas the canonization of classic plays is part of a broader Western cultural process, the canonization of national plays is part of a particular national cultural discourse. A national play, and the stagings of that play, function on both representational and constructional levels, representing and constructing or deconstructing the nation and ideas about national identity. It is a discursive construct as well as what Bhabha defined as a performative narrative strategy, which circulates through society and by being repeatedly re-interpreted on stage can criticize, redefine or even create (new) national patterns of self-identification
Beschryving der nieulijks uitgevonden en geoctrojeerde Slang-Brand-Spuiten, en Haare wijze van Brand-Blussen, Tegenwoordig binnen Amsterdam in gebruik zijnde ... : nevens Beschrijving der Brand-ordres van de Stad Amsterdam
No full textdoor der zelver Inventeur Jan van der Heide en Jan van der Heide de Jonge, Generaale Brandmeesters der Stad AmsterdamTitelvignetteBeigebunden sind eine Gebrauchsanweisung und ein Prospekt, sowie eine gef. Kupfertaf. (Jan van der Heyde, delin.
Letter from I. C. Van Der Karr, Kankakee, Illinois, to Agnes M. Wert, Des Moines, Iowa, September 29, 1945
No full textLetter written on business letterhead from I. C. Van Der Karr of Kankakee, Illinois, to Agnes M. Wert of Des Moines, Iowa, concerning the latter's purchase of a grave marker for a deceased family member
De middeleeuwse toren van Westermeer: Archeologisch Onderzoek in de gemeente De Fryske Marren 7
No full textTijdens restauratiewerkzaamheden aan de toren van Westermeer konden archeologische waarnemingen worden verricht. De middeleeuwse veenontginningen van Westermeer zijn in de dertiende eeuw voltooid. Hierna is in de loop van de dertiende eeuw de kerk van Westermeer gesticht. Waarschijnlijk heeft deze kerk een voorganger op de oude begraafplaats van Westermeer gehad. Deze oude begraafplaats moet uit de elfde of twaalfde eeuw dateren en is vermoedelijk ongedocumenteerd verloren gegaan. Over de datering van de toren van de nieuwe kerk was tot dusver geen consensus. Op basis van het huidige onderzoek hebben we meer grip op deze datering gekregen. De muren van de toren zijn uitgevoerd in kistwerk, een techniek die tot aan het begin van de veertiende eeuw is toegepast. Hiernaast zien we dat er in de toren speklagen van zandsteen zichtbaar zijn. Deze toepassing van speklagen van zandsteen vind plaats vanaf ongeveer 1400. Enkele van de platen zandsteen, die voor deze speklagen zijn gebruikt, zijn afkomstig van middeleeuwse sarcofagen. Hergebruik van sarcofagen en grafplaten vond tot in de veertiende of vijftiende plaats. De kloostermoppen in de muur van de toren kunnen op basis van de lengte-breedte-dikteverhouding in de veertiende en vijftiende eeuw gedateerd worden. In de toren worden rooswinkels aangetroffen maar deze rooswinkels moeten als latere restauraties beschouwd worden. Al met al kan aangenomen worden dat de toren in de eerste helft van de veertiende gebouwd is. De kerk was voorzien van gebrandschilderd glas. In de loop van de zeventiende eeuw kwam de kerk in verval waarna het schip van de kerk aan het begin van de achttiende eeuw is afgebroken. Oorspronkelijk had de toren een zadeldak maar deze is aan het begin van de achttiende eeuw vervangen door een tentdak. Vanwege de minimale omvang van de graafwerkzaamheden en de kwaliteit van het vondstmateriaal lijkt de vindplaats in archeologisch opzicht waardevol. Op diepere niveaus kunnen ten oosten van de toren nog sporen van de middeleeuwse kerk verwacht worden. Of hier nog middeleeuwse graven verwacht mogen worden is niet zeker maar ook niet uit te sluiten
Learning from the Roman house. Dom Hans van der Laan: Experience-spaces and constructional analogies
No full textDom Hans van der Laan’s architecture and archetypal models as described in
his 1977 publication Architectonic Space aim to provide universal fundamentals,
with an ahistorical perspective. The only specific references are to Vitruvius and
Stonehenge. Nevertheless, research of Van der Laan’s archives and rare travel
diaries reveals a series of ancient historical references that can be uncovered,
from an early map of Rome to the study trip to Italy in 1969. Van der Laan dealt
with the theory of architectonic disposition in the CKA between 1968 and 1973,
after working on the plastic number and on architectonic form. The 1969 trip
to Italy and the first-hand visits to the ruins enabled him to confirm and further
develop his theories on architecture
Thermal and photochemical reactions of dihydrodiazines
No full textThis thesis describes the results of an investigation into the thermal and photochemical reactivity of dihydrodiazines.In order to prepare the title compounds the diazines and some phenyldiazines are treated with phenyllithium in ether, yielding adducts resulting from attack of phenyllithium on the various positions of the heteroaromatic ring. With pyrimidine addition takes place mainly at C(4), with pyridazine at C(3). By using TMEDA, addition at C(2) in 4-phenylpyrimidine and at C(4) in pyridazine is strongly promoted. The structure of the adducts is studied by n.m.r. spectroscopy. The charge distribution pattern in the C(4)-adduct of pyrimidine and in both the C(3)-adduct and the C(4)-adduct of pyridazine is determined by comparing the carbon chemical shifts of these compounds with those of the corresponding dihydrodiazines obtained by hydrolysis of the adducts. C(5) in the phenyllithium-pyrimidine adduct carries little negative charge, C(4) in the phenyllithium-pyridazine adduct has a considerable amount of charge while the charge density at C(6) in the 3-adduct and both C(3) and C(5) in the 4-adduct of pyridazine is moderate.Some organolithium-diazine adducts and some dihydropyrimidines are treated with electrophilic reagents. Both 4,6-diphenyl-1(3)-lithio-1,4(3,4)-dihydropyrimidine and 4,6-diphenyl-1,4(3.4)-dihydropyrimidine are attacked by the electrophilic reagent (methyliodide, methyl chloroformate) at N(3), yielding 4,6-dipheny]-3-methyl(methoxycarbonyl)-3,4-dihydropyrimidine. 4,4,6-Triphenyl-1,4(3,4)-dihydropyrimidine gives upon treatment with methyliodide mainly 3-methyl-4,4,6-triphenyl-3,4-dihydropyrimidine. The 3,4-dihydro structure of the products is established both spectroscopically and chemically. Reaction of 2-lithio-3-methyl-2,3-dihydropyridazine with methyliodide (methyl chloroformate, tosylchloride) gives the corresponding 2,3-dimethyl-(2-methoxycarbonyl-3-methyl-, 2-tosyl-3-methyl-)2,3-dihydropyridazine. 1-Lithio-2-phenyl-1,2-dihydropyrazine yields upon treatment with methyliodide 5-methyl-2-phenylpyrazine. Reaction with carbonyl compounds only yields high molecular material.Photolysis of 4-R-1,4(3,4)-dihydropyrimidines causes rearrangement to 5-R-1,2(2,3)-dihydropyrimidines, provided that the substituent R contains a π-bond in αposition to the heterocyclic ring (R=phenyl,isobutenyl,phenylethynyl). 4-Methyl-1,4(3,4)-dihydropyrimidine does not show this rearrangement. Chemical evidence is presented that the rearrangement occurs via the di-π-methane mechanism leading to 6-R-2,4-diazabicyclo [3.1.0] hex-2(3)-ene. This latter intermediate undergoes a thermal homo [1,5] hydrogen shift into 5-R-2,5-dihydropyrimidine which on tautomerization gives the final product. The reaction can be sensitized by acetone. 4,5-Diphenyl-, 5-methyl-4-phenyl and 5-bromo-4-phenyl-1,4(3,4)-dihydropyrimidine do not rearrange under photochemical conditions.Several 4-R-1,4(3,4)-dihydropyrimidines (R=2- or 3-thienyl,2-furyl, 1-methyl-2-pyrrolyl and 3-pyridyl) containing heteroaryl vinyl methane moieties undergo photochemical rearrangement into 5-R-1,2(2,3)-dihydropyrimidines. Oxidation of these compounds yield 5-heteroarylpyrimidines. The chemical yields are strongly dependent of the nature of the heteroaryl group.The existence of a 6-R-2,4-diazabicyclo [3.1.0] hex-2(3)-ene as an intermediate in the photoisomerization of 4-R-1,4(3,4)- dihydropyrimidines into 5-R-1,2(2,3)-dihydropyrimidines is confirmed spectroscopically in case R= p -trifluoromethylphenyl. It is established that the p -trifluoromethylphenyl group is in exo position in the bicyclic compound. 6- Exo -( p -trifluoromethylphenyl)-2,4-diazabicyclo [3.1.0] hex- 2(3)-ene immediately gives 5-( p -trifluoromethylphenyl)-1,2(2,3)- dihydropyrimidine upon addition of potassium hydroxide in methanol.Photolysis of 4-R-1,4(3,4)-dihydropyrimidines causes ring contraction into imidazoles, provided that the substituent R is sufficiently capable of stabilizing an anionic centre (R=2-thiazolyl and 2- or 4-pyridyl). Chemical evidence is presented that the ring contraction of 6-phenyl-4-(2-pyridyl)-1,4(3,4)-dihydropyrimidine occurs via heterolytic fission of the C(1)-C(6) bond of intermediate 1-phenyl-6-(2-pyridyl)-2,4-diazabicyclo [3.1.0] hex-2(3)-ene. The anion stabilizing effect of R is correlated with the acid strength (pKa) of R-CH 3 . A pKa value around 30 determines the border-line between ring contraction into an imidazole and formation of an isomeric 5-R-1,2(2,3)-dihydropyrimidine
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