715 research outputs found
A history of Stickelberger's theorem
This thesis is a history of Stickelberger's theorem, from Gauss' sixth proof of quadratic reciprocity to Stickelberger's landmark paper.No embarg
Application of the Implicit Association Test to a study on deception
Version of RecordThree experiments were conducted to find out whether the standard Implicit Association Test (IAT) could be used to distinguish truthful and deceitful witnesses. We anticipated that IAT effects would be greater after lying. Participants were asked to answer questions with incorrect answers (i.e., the lie condition) or correct answers (i.e., the truthful condition). A third group of participants were not interviewed (a control group). Participants then took the IAT, in which they were asked to associate correct and incorrect answers with positive or negative attributes. Results demonstrate that standard IAT effects are greater after lying than after truth telling, but only when attribute labels were clearly and explicitly linked to positive and negative affect. Theoretical implications are considered.Frost, P., Adie, M., Denomme, R., Lahaie, A., Sibley, A., & Smith, E.. (2010). Application of the Implicit Association Test to a Study on Deception. The American Journal of Psychology, 123(2), 221-230. http://www.jstor.org/stable/10.5406/amerjpsyc.123.2.022
To End This Day of Strife : Churchwomen and the Campaign for Integration, 1920-1970
\u27To End This Day of Strife\u27: Churchwomen and the Campaign for Integration, 1920-1970, explores the development and significance of a race relations agenda within a national interdenominational and interracial organization of women, known today as Church Women United (CWU). This project examines the role the organization played in the expansion of a moral language of race that reached across region, race and denomination. The keys to this expansion were twofold: First, the participation of African American churchwomen in the organization from its beginnings stimulated dialogue and action; and second, the missionary legacy of white churchwomen, which, despite its initial imperialist assumptions, introduced churchwomen to a religious idiom and intellectual experience that embraced cultural diversity. Black churchwomen pursued membership in CWU as a potential avenue to a more fully integrated American society. As they did, they challenged white churchwomen to take moral responsibility for race relations and supplanted the prominent black stereotypes held by white America.
Using primarily the organization\u27s national papers housed at the General Commission on Archives and History at Drew University, Madison, New Jersey, this project contributes to recent scholarship on the civil rights movement. It explores the more intimate aspects of its unknown players and expands the periodization of the struggle as well as the limited literature on women\u27s role in the movement. To End this Day of Strife examines the multiple interpretations of racial integration for various groups of citizens. In particular, it considers the moments when white and African American churchwomen\u27s pursuit of racial integration conflicted and coalesced with each other. The participation by CWU in the antecedents of as well as what is considered the actual civil rights movement provides a valuable context to understand better the place of religion in twentieth century American history
A Label-Free Biosensor for Heat Shock Protein 70 Using Localized Surface Plasmon Resonance
Heat shock protein 70 (HSP70) is an important health related biomarker, being implicated as an early stage cancer marker and as an indicator of cardiac health. It also has important implications in wildlife environmental monitoring, as its levels can be affected by food deprivation, elevated temperatures, and pollution. Therefore, the use of HSP70 as a biomarker is highly desirable, yet the current methods of quantifying HSP70 are time consuming, expensive, and require dedicated labs. In order to facilitate widespread use of the HSP70 biomarker, a quantification tool that can be used at the point-of-care is needed. This implies the development of a simple and inexpensive HSP70 biosensing technique that is highly sensitive and selective. Therefore, in this work a label-free HSP70 biosensor has been designed based on the optical properties of gold nanoparticles (NPs). Gold NPs exhibit a large absorbance peak in the visible spectrum due to localized surface plasmon resonance (LSPR). The peak position is dependent on the local refractive index, which can be employed as a biosensor by selectively capturing the target analyte to the NP surface. To design an LSPR HSP70 sensor, optical and fluidic simulations were developed to determine optimal NP geometries and microchannel dimensions. The results showed optimal response when using 100nmx5nm gold nanotriangles inside of a 100μmx100μm microchannel. Simulations of the sensor performance showed HSP70 detection from 0.92-4000ng/ml with a resolution of 1.1ng/ml, all of which satisfied the design requirements. An LSPR sensor was experimentally tested at the benchtop scale to prove the concept. Gold NPs were fabricated by electron beam lithography and enclosed in a polymer flow cell. For initial testing of the LSPR sensor, the NPs were functionalized with biotin for selective capture of streptavidin. Streptavidin was detected in real time over the range 55-500,000ng/ml. The use of bovine serum albumin (BSA) was shown to be necessary to block non-specific binding sites to ensure a streptavidin-specific response. The LSPR sensor was then demonstrated to detect salmon HSP70 at 4600ng/ml using its synthetic antibody. Overall, these results demonstrate that LSPR can be used to realize an HSP70 biosensor suitable for point-of-care applications
Fish Oil-Derived Fatty Acids in Pregnancy and Wheeze and Asthma in Offspring
© 2016 Massachusetts Medical Society. Bisgaard, H., Stokholm, J., Chawes, B. L., Vissing, N. H., Bjarnadóttir, E., Schoos, A.-M. M., … Bønnelykke, K. (2016). Fish Oil–Derived Fatty Acids in Pregnancy and Wheeze and Asthma in Offspring. New England Journal of Medicine, 375(26), 2530–2539. https://doi.org/10.1056/NEJMoa1503734BACKGROUND Reduced intake of n-3 long-chain polyunsaturated fatty acids (LCPUFAs) may be a contributing factor to the increasing prevalence of wheezing disorders. We assessed the effect of supplementation with n-3 LCPUFAs in pregnant women on the risk of persistent wheeze and asthma in their offspring. METHODS We randomly assigned 736 pregnant women at 24 weeks of gestation to receive 2.4 g of n-3 LCPUFA (fish oil) or placebo (olive oil) per day. Their children formed the Copenhagen Prospective Studies on Asthma in Childhood 2010 (COPSAC 2010) cohort and were followed prospectively with extensive clinical phenotyping. Neither the investigators nor the participants were aware of group assignments during follow-up for the first 3 years of the children's lives, after which there was a 2-year follow-up period during which only the investigators were unaware of group assignments. The primary end point was persistent wheeze or asthma, and the secondary end points included lower respiratory tract infections, asthma exacerbations, eczema, and allergic sensitization. RESULTS A total of 695 children were included in the trial, and 95.5% completed the 3-year, double-blind follow-up period. The risk of persistent wheeze or asthma in the treatment group was 16.9%, versus 23.7% in the control group (hazard ratio, 0.69; 95% confidence interval [CI], 0.49 to 0.97; P=0.035), corresponding to a relative reduction of 30.7%. Prespecified subgroup analyses suggested that the effect was strongest in the children of women whose blood levels of eicosapentaenoic acid and docosahexaenoic acid were in the lowest third of the trial population at randomization: 17.5% versus 34.1% (hazard ratio, 0.46; 95% CI, 0.25 to 0.83; P=0.011). Analyses of secondary end points showed that supplementation with n-3 LCPUFA was associated with a reduced risk of infections of the lower respiratory tract (31.7% vs. 39.1%; hazard ratio, 0.75; 95% CI, 0.58 to 0.98; P=0.033), but there was no statistically significant association between supplementation and asthma exacerbations, eczema, or allergic sensitization. CONCLUSIONS Supplementation with n-3 LCPUFA in the third trimester of pregnancy reduced the absolute risk of persistent wheeze or asthma and infections of the lower respiratory tract in offspring by approximately 7 percentage points, or one third. (Funded by the Lund-beck Foundation and others; ClinicalTrials.gov number, NCT00798226.)Lundbeck Foundatio
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