842 research outputs found
Electronic structure analyses and activation studies of a dinitrogen-derived terminal nitride of molybdenum
No full textThesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2004.Vita.Includes bibliographical references.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Chapter 1: Complexes obtained by electrophilic attack on a dinitrogen-derived terminal molybdenum nitride: Electronic structure analysis by solid state CP/MAS ¹⁵N NMR in combination ... Chapter 2. Carbene chemistry in the activation of a dinitrogen-derived terminal nitride of molybdenum ... Chapter 3. Nitrogen atom transfer from dinitrogen into an organic nitrile via the anionic ketimide complex (THF)²Mg[O(Ph)C¹⁵NMo(N[tBu]Ar)₃]₂ ...by Emma Louise Sceats.S.M
El Tlacuache Núm. 305 (2008). 305 Año 9 (2008) marzo. El Tlacuache
No full textOfrenda del centro ceremonial de Tepoztlán por Ana Emma Peña Rodríguez y Giselle Canto Aguilar. - El estudio de la tecnología prehispánica a través de la arqueología experimental por Emiliano Ricardo Melgar Tísoc. - Patrimoio Cultural en Imágenes
El Tlacuache Núm. 280 (2007). 280 Año 7 (2007) octubre. El Tlacuache
No full textUn septiembre de hace ciento diez años, 1897 por Elvira Pruneda. - El último día del templo del Tepozteco por Giselle Canto Aguilar, Ana Emma Peña Rodríguez
Handheld-Impedance-Measurement System with seven-decade capability and potentiostatic function
No full textThis paper describes design and test of a new impedance-measurement system for nonlinear devices that exhibits a seven-decade range and works down to a frequency of 0.01 Hz. The system is specifically designed for electrochemical measurements, but the proposed architecture can be employed in many other fields where flexible signal generation and analysis are required. The system employs an unconventional signal generator based on two pulsewidth modulation (PWM) oscillators and an autocalibration system that allows uncertainties of less than 3% to be obtained over a range of 1 kΩ to 100 GΩ. A synchronous demodulation processing allows the noise superimposed to the low-amplitude input signals to be made negligibl
Clothing Matters: Dress and Identity in India
No full textWinner of Coomaraswamy Prize 1998.
In this path-breaking and entertaining study, the author concentrates on the problem of what to wear rather than describing what is worn. She demonstrates how different individuals and groups have used clothes to assert power, challenge authority, define or conceal identity, and instigate or prevent social change at various levels of Indian society from the village to the nation. Three main issues are addressed: questions of national identity as seen through the clothing controversies of the Indian elite in the late colonial period; questions of local identity as experienced by women in rural Gujarat; and the recent development of urban fashion trends which reappropriate regional styles. Emma Tarlo demonstrates the complexity of interaction between these different levels of sartorial change. Thus she combines ethnographic analysis of Gandhi's loincloth and village embroidery with a rich depiction of the importance of clothing in India. The work is amply illustrated with over 100 photographs, advertisements and cartoons
Jews and gender in British literature 1815-1865.
No full textPhDThis thesis examines the variety of relationships between Jews and gender in early
to mid-nineteenth century British literature, focussing particularly on representations
of and by Jewish women. It reconstructs the social, political and literary context in
which writers produced images and narratives about Jews, and considers to what
extent stereotypes were reproduced, appropriated, or challenged. In particular it
examines the ways in which questions of gender were linked to ideas about religious
or racial difference in the Victorian period.
The study situates literary representations of Jews within the context of
contemporary debates about the participation of the Jews in the life of the modern
state. It also investigates the ways in which these political debates were gendered,
looking in particular at the relationship between the cultural construction of
femininity and English national identity.
It first considers Victorian culture's obsession with Rebecca, the Jewess created in
Walter Scott's influential novel Ivanhoe (1819). It examines Rebecca's refusal to
convert to Christianity in the context of Scott's discussion of racial separatism and
modern national unity.
Evangelical writers like Annie Webb, Amelia Bristow and Mrs Brendlah were
prolific literary producers, and preoccupied with converting Jewish women.
Particularly during the 18'40s and 1850s, evangelical writing provided an important
forum for the construction and consolidation of women's national identity.
Grace Aguilar's writing was an attempt to understand Jewish identity within the
terms of Victorian domestic ideology. In contrast, Celia and Marion Moss, in their
historical romances, offered narratives of female heroism and national liberation,
drawing on the contemporary debate about slavery.
Benjamin Disraeli's construction of a "tough version of Jewish identity was a
response both to the contemporary stereotype of the feminised Jew and to the debate
about Jewish emancipation. It also drew on the virile ideology of the Young England
movement of the 1840s
Emma Corbett: exhibiting Henry and Emma, the faithful modern lovers; as delineated by themselves, in their original letters. / Published by Courtney Melmoth, author of The pupil of pleasure, &c. &c. ; [Four lines from Pratt] ; Three volumes complete in one.
No full text48, 48, 48 p. ; 22 cm.First published at Bath and London in 1780 under title: Emma Corbett; or, The miseries of civil war. Founded on some recent circumstances which happened in America."Courtney Melmoth" is a pseudonymn of Samuel Jackson Pratt.Bookseller's advertisements, p. 48 of each part
Correction for Sear et al., Human settlement of East Polynesia earlier, incremental, and coincident with prolonged South Pacific drought.
No full textCorrection for "Human settlement of East Polynesia earlier, incremental, and coincident with prolonged South Pacific drought," byDavid A. Sear,Melinda S. Allen, JonathanD. Hassall, Ashley E. Maloney, Peter G. Langdon, Alex E. Morrison, Andrew C. G. Henderson, Helen Mackay, Ian W. Croudace, Charlotte Clarke, Julian P. Sachs, Georgiana Macdonald, Richard C. Chiverrell, Melanie J. Leng, L. M. Cisneros-Dozal, and Thierry Fonville, which was first published April 6, 2020; 10.1073/pnas.1920975117 (Proc. Natl. Acad. Sci. U.S.A. 117, 8813-8819). The authors note that Emma Pearson should be added to the author list after Thierry Fonville. Emma Pearson should be credited with performing research and analyzing data. The corrected author line, affiliation line, and author contributions appear below. The author line, affiliations, and contributions sections have been corrected online. The authors note that the following statement should be added to the Acknowledgments: "E.P. acknowledges NERC grant BRIS/ 81/0415"
How does isoflavones in combination with soy protein impact cholesterol levels in hypercholesterolemic postmenopausal women relative to milk protein?
No full textSahlgrenska Academy at University of Gothenburg
Department of Internal Medicine and Clinical Nutrition
3
Abstract
Title: How does isoflavones in combination with soy protein impact cholesterol levels in hypercholesterolemic postmenopausal women relative to milk protein?
Author: Emma Edberg och Emma Nilsson
Supervisor: Lena Hulthén
Examiner: Anna Winkvist
Programme: Dietician stydy programme,180/240 hp
Type of paper: Examination paper, 15 hp
Date: 2014-05-26
Background: Hypercholesterolemia is a major risk factor for cardiovascular disease and the number one cause of death among women in Western countries. Declining levels of estrogen at menopause could be a contribution factor. Isoflavones is a vegetable substance, with structural and functional similarities to the human estrogen. This is a potential reason for possible cholesterol-lowering effects. The substrate of studies on isoflavones and its effect on cholesterol found today is ambiguous and there are uncertainties about which statements can be made.
Objective: To examine the scientific evidence on whether isoflavones in combination with isoflavones have a different impact on HDL- and LDL-cholesterol in hypercholesterolemic postmenopausal women in comparison with milk protein.
Search strategy: Literature searches were made in the databases PubMed and Scopus. Search words used were of relevance for the research question of this systematic review.
Selection criteria: Randomized controlled trials done on postmenopausal women were included. They compared isoflavones combined with soy protein with milk protein and were preformed on women with elevated levels of total- and /or LDL-cholesterol. Studies conducted on populations with hormone – and/or cholesterol -lowering therapy were excluded.
Data collection and analysis: The literature search yielded three RCTs which were validated using SBUs Granskningsmall för randomiserade kontrollerade studier. The strength of evidence for the included studies was then weighed together with Göteborgs universitets sammanfattande evidensformulär.
Main results: Two of the studies were estimated to have a mediate-high study quality and the third was judged to have a mediate-high to high study quality. The summarized grade of evidence for the selected outcome measures were considered mediate-high. Only one study found a significant difference in LDL-cholesterol between intervention- and control group. None of the studies showed a significant difference in HDL cholesterol.
Conclusions: There is moderate evidence that isoflavones in combination with soy protein does not provide any significant difference in impact on HDL-cholesterol compared with milk protein, in hypercholesterolemic postmenopausal women. As the effect on LDL-cholesterol differs between the included studies no conclusions can be drawn. The scientific substrate with estimated moderate evidence shows an ambiguous result for the outcome measure LDL-cholesterol. Though the result indicates that higher levels of naturally occurring isoflavones could potentially provide a greater reduction compared with milk protein.Sahlgrenska Akademin vid Göteborgs universitet
Avdelningen för invärtesmedicin och klinisk nutrition
2
Sammanfattning
Titel: Hur påverkas kolesterolvärden hos postmenopausala kvinnor med hyperlipidemi vid intag av isoflavonoider kombinerat med sojaprotein jämfört med mjölkprotein? – En systematisk översiktsartikel.
Författare: Emma Edberg och Emma Nilsson
Handledare: Lena Hulthén
Examinator: Anna Winkvist
Linje: Dietistprogrammet, 180/240 hp
Typ av arbete: Självständigt arbete, 15 hp
Datum: 2014-05-26
Bakgrund: Hyperkolesterolemi är en betydande riskfaktor för kardiovaskulära sjukdomar, vilket är den främsta dödsorsaken bland kvinnor i västerländska länder. Sjunkande nivåer av östrogen vid menopaus kan vara en bidragande orsak. Isoflavonoider är ett vegetabiliskt ämne med östrogenlikande egenskaper, detta är en potentiell orsak till dess eventuella kolesterolsänkande effekt. Underlaget av studier på isoflavonoiders effekt på kolesterol är i dagsläget tvetydligt och det finns en osäkerheten kring vad man egentligen kan uttala sig om.
Syfte: Att undersöka det vetenskapliga underlaget för huruvida isoflavonoider i kombination med sojaprotein har en skiljd inverkan på HDL- samt LDL-kolesterol hos postmenopausala kvinnor med hyperkolesterolemi jämfört med mjölkprotein.
Sökväg: Litteratursökningar gjordes i databaserna PubMed och Scopus. De sökord som användes var av relevans för översiktsartikelns frågeställning.
Urvalskriterier: Randomiserade kontrollerade studier, gjorda på postmenopausala kvinnor inkluderades. De jämförde isoflavonoider i kombination med sojaprotein med mjölkprotein och var gjorda på kvinnor med förhöjda total- och/eller LDL-kolesterolvärden. Studier gjorda på populationer med hormon- och/eller kolesterolsänkande behandling exkluderades.
Datainsamling och analys: Litteratursökningen gav tre RCT-studier som granskades med hjälp av SBU:s Granskningsmall för randomiserade kontrollerade studier. De inkluderade studiernas evidensstyrka vägdes sedan samman med Göteborgs universitets sammanfattande evidensformulär.
Resultat: Två av studierna skattades till en medelhög studiekvalitet och den tredje bedömdes ha en medelhög till hög studiekvalitet. Den sammanlagda evidensstyrkan för valda effektmått bedömdes vara måttlig. Enbart en studie visade en signifikant skillnad i LDL-kolesterol mellan intervention- och kontrollgrupp. Inte någon av studierna visade på en signifikant skillnad i HDL-kolesterol.
Slutsats: Det finns måttlig evidens för att isoflavonoider i kombination med sojaprotein ej ger någon signifikant skillnad i påverkan på HDL-kolesterol i jämförelse med mjölkprotein, hos postmenopausala kvinnor med hyperkolesterolemi. Det vetenskapliga underlaget med uppskattad måttlig evidens, ger ett tvetydligt resultat för utfallsmåttet LDL-kolesterol. Resultatet tyder dock på att intag av högre halter naturligt förekommande isoflavonoider eventuellt kan ge en större sänkning jämfört med mjölkprotein
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