63 research outputs found
Pilk Richard Viidalepa perekonnaloole
No full textRichard Viidalepp (Widebaum before Estonianising his name, and later Viidebaum; Jan. 23, 1904 - June 3, 1986), the famous Estonian folklorist, was born in the Jalapuu farm in the village of Nurmsi in Central Estonia. The same farm was the home of Urve Buschmann, the author of the article and R. Viidalepp's niece. On the basis of the 1722 list of inhabitants in the Särgavere estate and the registers of the Järva Peetri congregation, the documented genealogy of Viidalepp's family starts with Jüri Jalapuu and his wife Els (?1730-?1761). In more recent registers their son Jüri (?1771-1843) already appears under the name Widebaum. The family was a typical Estonian family, including farmers, handicraftsmen, inventive technicians, later also intellectuals and artists. Some emigrated (the Finnish and American branches of the Viidebaums) and some were deported to Siberia. The fate of family members and descriptions of family history are illustrated by Richard Viidalepp's letters and family photographs. The last Viidalepps born in the Jalapuu farm moved to Tallinn in 1950
A fluorescent host-guest complex of cucurbituril in solution: a molecular Jack O'Lantern
No full textFluorescence enhancement of a probe molecule in solution by the container molecule cucurbituril (CB) is reported for the first time. The fluorescence of the probe 2-anilinonaphthalene-6-sulfonate (2,6-ANS) in aqueous Na2SO4 solution is found to increase by a maximum factor of 5.0 upon addition of cucurbituril. This fluorescence enhancement is the result of the formation of a host-guest inclusion complex, in which the guest 2,6-ANS is incorporated inside the cavity of the host, cucurbituril. Measurement of the enhancement as a function of cucurbituril concentration yielded a value of the equilibrium constant (K) of 52 +/- 10 M-1. It is proposed that the mode of inclusion involves the phenyl group of the 2,6-ANS, because of the relatively small size of the cucurbituril cavity. It is further proposed that the observed enhancement is a result of loss of rotational mobility of the phenyl ring relative to the naphthyl fluorophore of 2,6-ANS upon inclusion of the phenyl ring, Since the name cucurbituril is derived from the Latin word for "pumpkin," this fluorescent host-guest complex is referred to as a "molecular Jack O'Lantern," with the 2,6-ANS serving as the candle.PT: J; CR: BEHREND R, 1905, LIEBIGS ANN CHEM, V339, P1 BORTOLUS P, 1996, ADV PHOTOCHEMISTRY P, P1 BUSCHMANN HJ, 1992, J INCLUS PHENOM MOL, V14, P91 BUSCHMANN HJ, 1997, J INCLUS PHENOM MOL, V29, P167 BUSCHMANN HJ, 1998, THERMOCHIM ACTA, V317, P95 BUSCHMANN HJ, 1999, J PHOTOCH PHOTOBIO A, V121, P99 CINTAS P, 1994, J INCLUS PHENOM MOL, V17, P205 CRAM DJ, 1997, CONTAINER MOL THEIR DANTZ DA, 1998, SUPRAMOL CHEM, V9, P79 DELAPENA AM, 1993, J INCLUS PHENOM MOL, V15, P131 DIAMOND D, 1996, CHEM SOC REV, V25, P15 FREEMAN WA, 1981, J AM CHEM SOC, V103, P7367 HOFFMANN R, 1994, J CHEM SOC FARADAY T, V90, P1507 JEON YM, 1996, J AM CHEM SOC, V118, P9790 KOSOWER EM, 1975, J AM CHEM SOC, V97, P2167 KOSOWER EM, 1978, J AM CHEM SOC, V100, P4179 LI S, 1992, CHEM REV, V92, P1457 MOCK WL, 1983, J ORG CHEM, V48, P3618 MOCK WL, 1995, TOP CURR CHEM, V175, P1 MOCK WL, 1996, COMPREHENSIVE SUPRAM, V2, P477 WAGNER BD, 1998, J PHOTOCH PHOTOBIO A, V114, P151 WAGNER BD, 1999, J PHYS CHEM B, V103, P10114 WAGNER BD, 2000, J INCL PHENOM MACRO, V38, P467 WHANG DM, 1998, J AM CHEM SOC, V120, P4899; NR: 24; TC: 16; J9: CAN J CHEM; PG: 4; GA: 473RESource type: Electronic(1
Fluorescence enhancement of curcumin upon inclusion into cucurbituril
No full textThe effect of the macrocyclic host compounds cucurbit[n]urils (Qn), with n = 5 - 7, on the fluorescence of the biologically active compound curcumin has been studied. Curcumin, the main constituent of the Indian spice turmeric, is of growing interest because of its wide-ranging pharmaceutical properties. This compound forms strong 2:1 host-guest inclusion complexes with Q6 (the original cucurbituril), with an overall equilibrium constant of (1.9 +/- 0.8) X 10(4) M-2. It is postulated that a Q6 host partially encapsulates each of the two phenyl groups at the ends of the curcumin molecule. The difference in magnitude of the equilibrium constants K-1 (72 +/- 2 M-1) and K-1 (260 +/- 120 M-1) for stepwise encapsulation of the two ends of the curcumin molecule indicates that encapsulation by the first Q6 significantly alters its entire electronic structure, resulting in a more favorable second encapsulation. A very large enhancement of the fluorescence of curcumin results from this complex formation, on the order of 5.0; this is a significant fraction of the polarity sensitivity factor (PSF) of 39 measured for curcumin, that is the ratio of fluorescence intensity in ethanol vs. water. Surprisingly, no such enhancement could be observed in the case of Q7, indicating that the interactions between the guest and the host cavity are not favorable in this case, contrary to expectations. Similarly, no enhancement was observed in the case of Q5, which is not unexpected, because of the extremely small size of the host cavity and portal in this case.PT: J; CR: BARIK A, 2003, PHOTOCHEM PHOTOBIOL, V77, P597 BONG PH, 2000, B KOR CHEM SOC, V21, P81 BUSCHMANN HJ, 1997, J INCLUS PHENOM MOL, V29, P167 BUSCHMANN HJ, 1998, J SOLUTION CHEM, V27, P135 BUSCHMANN HJ, 1998, THERMOCHIM ACTA, V317, P95 BUSCHMANN HJ, 2000, J INCL PHENOM MACRO, V37, P231 BUSCHMANN HJ, 2000, SUPRAMOL CHEM, V11, P225 CHIGNELL CF, 1994, PHOTOCHEM PHOTOBIOL, V59, P295 CHOI S, 2002, MACROMOLECULES, V35, P3526 CINTAS P, 1994, J INCLUS PHENOM MOL, V17, P205 DAHL TA, 1994, PHOTOCHEM PHOTOBIOL, V59, P290 DALTON L, 2003, CHEM ENG NEWS SEP, P8 DAY A, 2001, J ORG CHEM, V66, P8094 DELAPENA AM, 1993, J INCLUS PHENOM MOL, V15, P131 ELHAOUAJ M, 2001, J CHEM SOC PERK NOV, P2104 ELHAOUAJ M, 2001, J CHEM SOC PERK T 2, P804 FREEMAN WA, 1981, J AM CHEM SOC, V103, P7367 FREEMAN WA, 1984, ACTA CRYSTALLOGR B, V40, P382 HAMAI S, 1996, B CHEM SOC JPN, V69, P2469 HOFFMANN R, 1994, J CHEM SOC FARADAY T, V90, P1507 JANSEN K, 2000, VOM WASSER, V95, P229 JEON YM, 1996, J AM CHEM SOC, V118, P9790 JOVANOVIC SV, 2001, J AM CHEM SOC, V123, P3064 KHOPDE SM, 2000, PHOTOCHEM PHOTOBIOL, V72, P625 KIM J, 2000, J AM CHEM SOC, V122, P540 LAGONA J, 2003, ORG LETT, V5, P3745 LEE JW, 2003, ACCOUNTS CHEM RES, V36, P621 LIU Y, 2000, J ORG CHEM, V65, P6227 MARQUEZ C, 2001, ANGEW CHEM INT EDIT, V40, P3155 MARQUEZ C, 2001, ANGEW CHEM INT EDIT, V40, P4387 MESCHKE C, 1997, THERMOCHIM ACTA, V297, P43 MOCK WL, 1983, J ORG CHEM, V48, P3618 MOCK WL, 1986, J ORG CHEM, V51, P4440 MOCK WL, 1989, J AM CHEM SOC, V111, P2697 MOCK WL, 1990, J CHEM SOC CHEM COMM, P1509 MOCK WL, 1995, TOP CURR CHEM, V175, P1 MOCK WL, 1996, COMPREHENSIVE SUPRAM, V2, P477 NEUGEBAUER R, 1998, J CHEM SOC PERK MAR, P529 NIGAM S, 1996, J PHYS CHEM-US, V100, P7135 ROBINSON TP, 2003, BIOORG MED CHEM LETT, V13, P115 SHIM JS, 2003, CHEM BIOL, V10, P695 SUN YM, 2002, ORG LETT, V4, P2909 SZELTLI J, 1998, CHEM REV, V98, P1743 TANG B, 2002, J AGR FOOD CHEM, V50, P1355 TONNESEN HH, 2002, INT J PHARM, V244, P127 WAGNER BD, 2000, J INCL PHENOM MACRO, V38, P467 WAGNER BD, 2001, CAN J CHEM, V79, P1101 WAGNER BD, 2003, J PHYS CHEM B, V107, P10741 WHANG D, 1996, J AM CHEM SOC, V118, P11333 WHANG D, 1998, ANGEW CHEM INT EDIT, V37, P78 WRIGHT JS, 2002, J MOL STRUC-THEOCHEM, V591, P207; NR: 51; TC: 8; J9: SUPRAMOL CHEM; PG: 7; GA: 876JJSource type: Electronic(1
Fabrieksschema: Zwavelkoolstof fabricage
No full textDocument(en) uit de collectie Chemische ProcestechnologieDelftChemTechApplied Science
A Mátra-hegység sodrómoly faunája (Lepidoptera: Tortricidae)
No full textn this paper, the author reports 304 Tortricidae species known from Mátra up to the end of 2023, based on his own collections and the data published so far in the domestic literature
Biomechanics of tendons and ligaments : tissue reconstruction and regeneration /
No full textIncludes bibliographical references and index.Front Cover; Biomechanics of Tendons and Ligaments: Tissue Reconstruction and Regeneration; Copyright; Dedication; Contents; Part One: Fundamentals and biomechanics of tendons and ligaments; Chapter 1: Structure and function of tendon and ligament tissues; 1.1. Introduction; 1.2. Anatomy; 1.3. The structure of tendons and ligaments; 1.3.1. Healthy tendons and ligaments; 1.3.2. The components of the ECM; 1.3.3. The cells; 1.3.4. Growth factors; 1.3.5. Aging tendons and ligaments; 1.3.6. Tendinopathy; 1.4. Summary; ReferencesChapter 2: Biomechanical properties of tendons and ligaments in humans and animals2.1. Introduction; 2.2. Regional differences of biomechanical properties and impact of size; 2.3. Intrinsic factors: Gender and age; 2.4. Extrinsic factors: Physical activity and exercise; 2.5. Which tendon is the best (allo)graft in terms of material properties?; 2.6. Animal models; 2.6.1. Rabbit; 2.6.2. Sheep; 2.6.3. Mouse; 2.6.4. Rat; 2.6.5. Dog; 2.6.6. Pig; 2.6.7. Monkey; 2.6.8. Horse; 2.7. Summary; References; Chapter 3: Mechanobiology of tendons and ligaments; 3.1. Introduction3.2. Impact of loading on tendon cells3.2.1. Gene expression; 3.2.2. Gap junctions; 3.2.3. Calcium levels; 3.2.4. Degenerative tendon tissue; 3.2.5. Finite element model; 3.3. Effects of mechanical stimulation on ECM; 3.3.1. Collagen; 3.3.2. The noncollagenous part in the ECM; 3.3.3. Inflammatory response; 3.3.4. Changes of fiber strain and sliding under load; 3.4. Summary; References; Chapter 4: Experimental methods for measuring tendon and ligament biomechanics; 4.1. Introduction; 4.2. Classic tensile testing; 4.2.1. Load-displacement and stress-strain; 4.2.1.1. Load until failure4.2.1.2. Stiffness4.2.2. Loading rate; 4.2.3. Preconditioning; 4.2.4. Other testing conditions; 4.2.5. Fatigue tests; 4.3. Other biomechanical tests; 4.4. In vivo biomechanical tests; 4.5. Summary; References; Chapter 5: Imaging of tendons and ligaments in animal models; 5.1. Introduction; 5.2. Ultrasonography; 5.2.1. Overview; 5.2.2. Development of US as a diagnostic tool; 5.2.3. Comparison of US with histology and investigation of adhesion; 5.2.4. Correspondence of US with biomechanics; 5.2.5. Investigation of neovascularization after injury5.2.6. Extrinsic and intrinsic healing of tendons and ligaments5.2.7. Anatomical studies with US; 5.2.8. Summary; 5.3. Magnetic resonance; 5.3.1. Overview; 5.3.2. Investigation of morphological changes after injury; 5.3.3. Tissue engineering in tendon repair; 5.3.4. Diagnosis of tendon diseases; 5.3.5. Investigation of biomechanical properties; 5.3.6. Contrast agents in MRI; 5.4. Light microscopy, fluorescence microscopy; 5.4.1. Overview; 5.4.2. The tendon tissue (engineering) level; 5.4.3. The fascicle level; 5.4.4. The fiber level; 5.4.5. The fibril and microfibril levelOnline resource; title from PDF title page (EBSCO, viewed January 26, 2017).Elsevie
Mediating policing in the "fight against crime" and "rural terrorism" in Chile
No full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis: S.M. in Comparative Media Studies, Massachusetts Institute of Technology, Department of Comparative Media Studies/Writing, 2019Cataloged from PDF version of thesis.Includes bibliographical references (pages 129-136).From drones to predictive policing systems, there has been an increasing incorporation of new security technologies over the last years in Chile to make the fight against crime and "rural terrorism" more effective, in a context marked by a persistent attention to feelings of insecurity. Even though surrounded by an aura of neutrality, these technologies are far from neutral, as they form part of a complex sociocultural fabric of people, practices, discourses, legal frameworks and institutions. Furthermore, instead of solving problems more effectively, these technologies are complicating preexisting tensions. This thesis delves into a critical study of the contemporary anatomy of power, in which mediation processes are becoming central to policing practices, with a focus on two contexts: the fight against crime in urban areas, and the battle against "rural violence" or "terrorism" in the Mapuche indigenous territories in the south of Chile.Drawing on media theories and governmentality studies, I offer the term operational atmospheres as a notion to think with and account for the composition of policing practices at the cross of vertical (aerial, orbital, and electromagnetic), algorithmic, and affective fields of actions. Operational atmospheres are entanglements of feelings, imaginaries, and discursive practices; technologies and techniques; local and transnational political economies and histories; that form perceptual systems, ways of seeing or sensing like a state which are contingent, partial and grounded on fragile and labor intensive processes, through which they come into existence. I take as a methodological framework Donna Haraway's situated knowedges to locate and shed light on the processes of manufacturing state's logistics of perception and their consequences on the (re)production and government of others' spaces and subjects, in this case, the Mapuche as a "terrorist", and the criminal in urban areas.In the context of "rural terrorism", I examine three police operations: the killing of Camilo Catrillanca by Comando Jungla; the fake intelligence police operation, Operacidn Huracdn; and the introduction of aerial surveillance in the "red zone". Through this analysis, I shed light on the central role mediation processes play to produce imaginaries of the Mapuche as criminals and terrorists, and to sustain the development of special police operations to target, deceive and incriminate Mapuche in the context of their mobilization to recover lands and autonomy, crossing colonial pasts, neoliberal extractive presents, and global security discourses and practices. I then examine the informational, algorithmic, and unmanned aerial systems mediating carabineros'work in urban spaces, conceived as the location of calculable risks mobilizing preemptive actions to affect feelings of (in)security.By the implementation of a local version of CompStat, the integration of predictive policing, and the use of drones, urban policing has increasingly expanded beyond the realm of preemptive actions into the formation of "safety" ambiances, becoming atmospheric, pervasive, and affective. More than answers, this thesis opens up contemporary mechanisms of security operating in Chile, to denaturalize and dismantle the neutrality and effectiveness attached to the implementation of new technologies in policing.by Josefina Buschmann Mardones.S.M. in Comparative Media StudiesS.M.inComparativeMediaStudies Massachusetts Institute of Technology, Department of Comparative Media Studies/Writin
Review of: Pathfinders by Felipe Fernandez-Armesto
No full textReviewing a work that has received so much praise over the past two years always presents a difficult task. One only has to turn to the back cover of the current paperback to see the many accolades bestowed upon Felipe Fernández-Armesto's latest work. Most prominently, his Pathfinders received the prestigious World History Association Prize in 2007, an honor that openly acknowledges the global reach of the work under consideration. Moreover, although the book lists him as teaching at Tufts University, Fernández-Armesto's prolific output was recently honored by an appointment as the William P. Reynolds Professor of History at Notre Dame University. The teaching and research of world history has experienced a glut of introductory texts in recent years and novel approaches from which to tell a global narrative are becoming rare. Fernández-Armesto's work succeeds in this regard as he selects a particular topic – exploration – that carries transnational overtones. To fashion such a global framework for exploration Fernández-Armesto builds on his extensive work in the Iberian expansion and the Atlantic Ocean. Exploration, the author argues, is after all, a human affair and can thus be engaged for a global human narrative. According to the author, human global history is about two major stories: "The first is the very long one of how human cultures diverged … The second is the main subject of the book: a relatively short and recent story of convergence..." (p. 1) On the surface such a statement might be unsurprising. Placed in the context of exploration, however, the issue of divergence and convergence transcends hemispheric or continental histories that seemingly favor certain parts of the globe over others. His story, however, is truly global in that it follows the divergent expansion of Homo sapiens out of Africa in his first chapter (stretching) before turning to the subject of human convergence.Review of: Pathfinders by Felipe Fernandez-Armesto. geschichte.transnational & H-Soz-u-Kult. (Mar 19, 2010), online
Atypical status of bovine spongiform encephalopathy in Poland: a molecular typing study
No full textThe aim of this study was to analyze molecular features of protease-resistant prion protein (PrPres) in Western blots of BSE cases diagnosed in Poland with respect to a possible atypical status. Confirmed cases were analyzed by Western blotting with several monoclonal antibodies directed at N-terminal and core epitopes of prion protein (PrP). Most cases showed the classical glycoprofile characterized by the dominance of the di- over the monoglycosylated PrPres band, yielding di-/mono- ratios well above 2 and by reactivity with antibodies having their epitopes in bovine PrP region 110-242 (C-type cases). Surprisingly, seven cases of BSE were atypical. Six were classified as L-type based on a slightly lower molecular mass (M-r) of the non- glycosylated band with respect to C-types and a conspicuously low di-/mono- ratio of glycosylated PrPres bands approaching unity. One case was classified as H-type because of a higher M-r of PrPres bands on the blot when compared with C-type cases. A characteristic epitope of H-type PrPres occurred in the 101-110 region of PrP for which only antibody 12B2 had a sufficient affinity. The occurrence of atypical cases only in animals 9 years of age and older raises questions about the mechanisms of prion diseases and the origin of BSE
The Flemish author, bilingual mediator, and multilingual translator Frans Rens and the modest transfer of Francophone literature in 19th-century Belgium
No full textIn order to study the role of cultural mediators in Belgium, I focus on the translation scene in 19th century Flanders; more specifically on translations and adaptations from French, and the poet and editor Frans Rens's motivations as a translator and mediator. By situating his adaptations and mediating activities in the bigger picture of translation flows in the 19th century Flemish literary field, and studying the intercrossings with contemporary Belgian francophone authors, translators and mediators such as Joseph Octave Delepierre and Joseph-Ernest Buschmann, I shed a light on the early intersections between francophones and neerlandophones in the young nation, and illustrate how Rens uses translations to nourish the Belgian literature in Dutch. The article shows that Rens's efforts to promote the Dutch language and the Flemish culture are reflected both in the choice of his allies as in his particular mediation of their work
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