2,728 research outputs found
Natalie Zemon Davis — Fiction in the Archives. Pardon Tales and Their Tellers in Sixteenth-Century France.
The Birth of Capitalism
In the light of the deepening crisis of capitalism and continued non-Western capitalist accumulation, Henry Heller re-examines the debates surrounding the transition from feudalism to capitalism in Europe and elsewhere.
Focusing on arguments about the origin, nature and sustainability of capitalism, Heller offers a new reading of the historical evidence and a critical interrogation of the transition debate. He advances the idea that capitalism must be understood as a political as well as an economic entity. This book breathes new life into the scholarship, taking issue with the excessively economistic approach of Robert Brenner, which has gained increasing support over the last ten years. It concludes that the future of capitalism is more threatened than ever before.
The new insights in this book make it essential reading for engaged students and scholars of political economy and history
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Effects of an antiestrogen and estradiol on food intake, body composition, and metabolism in ovariectomized rats.
The Dutchman Vol. 7, No. 2
● Basketry, a Pennsylvania Dutch Art ● Decorative Elements in the Domestic Architecture of Eastern Pennsylvania ● Literature on Log Architecture ● Pennsylvania Tour of Europe ● Matters Genealogical ● Feeding Them by the Hundred ● The Zehn-uhr Schtickhttps://digitalcommons.ursinus.edu/dutchmanmag/1005/thumbnail.jp
A New Mechanism for Radial Migration in Galactic Disks: Spiral-Bar Resonance Overlap
While it has long been known that a large number of short-lived transient
spirals can cause stellar migration, here we report that another mechanism is
also effective at mixing disks of barred galaxies. The resonance overlap of the
bar and spiral structure induces a nonlinear response leading to a strong
redistribution of angular momentum in the disk. We find that, depending on the
amplitudes of the perturbers, the changes in angular momentum, dL, could occur
up to an order of magnitude faster than in the case of recurrent spirals. The
signature of this mechanism is a bimodality in dL with maxima near the bar's
corotation and its outer Lindblad resonance; this is independent of the
properties of the spiral structure. For parameters consistent with the Milky
Way the disk mixes in about 3 Gyr and the stellar velocity dispersion increases
with time in a manner roughly consistent with observations. This new mechanism
could account for both the observed age-velocity relation and the absence of
age-metallicity relation in the solar neighborhood. Spiral-bar interaction
could also explain observations showing that strongly barred galaxies have
weaker metallicity gradients than weakly barred or non-barred galaxies.Comment: 10 pages, 7 figures. Substantially expanded. Main results remain the
same. Accepted for publication in Ap
Health-Related Conditions and Depression in Elderly Mexican American and Non-Hispanic White Residents of a United States-Mexico Border County: Moderating Effects of Educational Attainment
We investigated the prevalence of “high” levels of depressive symptomatology and 13 health-related medical conditions in elderly Mexican American (MA) and non-Hispanic white (NHW) residents of El Paso County, Texas. We analyzed the extent to which depressive symptoms in this population are associated with these conditions. Elderly MA residents possessed a higher prevalence of current depression, a relatively unique health-related condition profile, and were more likely to experience a set of conditions that impede participation in daily life—conditions that we found to be strongly associated with high depressive symptomatology in the elderly. After adjusting for educational attainment, using multiple regression analyses, depression was not associated with ethnicity and only six of the health related conditions showed significant differences between MA and NHW subjects. We believe these results provide an important insight into the mechanism of health-related conditions and depressive symptomatology in a large sample of elderly MAs; and how conditions typically attributed to MA ethnicity may in actuality be an artifact of socioeconomic status variables such as educational-attainment
The Nainital-Cape Survey -- II:Report for pulsation in five chemically peculiar A-type stars and presentation of 140 null results
To search photometric variability in chemically peculiar A type stars in the
northern hemisphere. High-speed photometric observations of Ap and Am star
candidates have been carried out from ARIES (Manora Peak, Nainital) using a
three-channel fast photometer attached to the ARIES 104-cm Sampurnanand
telescope. This paper presents three new variables: HD 113878, HD 118660 and HD
207561. During the time span of the survey (1999 December to 2004 January)
pulsations of the Sct type were also found for the two evolved Am
stars HD 102480 and HD 98851, as reported in Joshi et al. (2002, 2003).
Additionally, we present 140 null results of the survey for this time span. The
star HD 113878 pulsates with a period of 2.31 hr, which is typical of
Sct stars. HD 118660 exhibits multi-periodic variability with a prominent
period of nearly 1 hr. These periods need to be investigated and make HD 118660
a particularly interesting target for further observations. For HD 207561, a
star classified as Am, a probable pulsation with a period of 6 min was found in
the light curves obtained on two consecutive nights. Both HD 102480 and HD
98851 exhibit unusual alternating high and low amplitude maxima, with a period
ratio of 2:1. The analysis of the null results confirms the photometric quality
of the NainitalComment: 14 pages, 13 figures, Accepted for publication in A&
The Dutchman Vol. 6, No. 2
● Spatterware ● That\u27s a Lot of Boloney ● A Dutch Touch ● Birds in Dutchland ● Cornelius Weygandt Day ● Brick-end Barns ● Hardly Bigger Than a Peanut ● Pennsylvania Dutch Pioneers ● Sycamores in Dutchland ● The Zehn-uhr Schtickhttps://digitalcommons.ursinus.edu/dutchmanmag/1001/thumbnail.jp
Mining and analysis of audiology data to find significant factors associated with tinnitus masker
Objectives: The objective of this research is to find the factors associated with tinnitus masker from the literature, and by using the large amount of audiology data available from a large NHS (National Health Services, UK) hearing aid clinic. The factors evaluated were hearing impairment, age, gender, hearing aid type, mould and clinical comments.
Design: The research includes literature survey for factors associated with tinnitus masker, and performs the analysis of audiology data using statistical and data mining techniques.
Setting: This research uses a large audiology data but it also faced the problem of limited data for tinnitus.
Participants: It uses 1,316 records for tinnitus and other diagnoses, and 10,437 records of clinical comments from a hearing aid clinic.
Primary and secondary outcome measures: The research is looking for variables associated with tinnitus masker, and in future, these variables can be combined into a single model to develop a decision support system to predict about tinnitus masker for a patient.
Results: The results demonstrated that tinnitus maskers are more likely to be fit to individuals with milder forms of hearing loss, and the factors age, gender, type of hearing aid and mould were all found significantly associated with tinnitus masker. In particular, those patients having Age<=55 years were more likely to wear a tinnitus masker, as well as those with milder forms of hearing loss. ITE (in the ear) hearing aids were also found associated with tinnitus masker. A feedback on the results of association of mould with tinnitus masker from a professional audiologist of a large NHS (National Health Services, UK) was also taken to better understand them. The results were obtained with different accuracy for different techniques. For example, the chi-squared test results were obtained with 95% accuracy, for Support and Confidence only those results were retained which had more than 1% Support and 80% Confidence.
Conclusions: The variables audiograms, age, gender, hearing aid type and mould were found associated with the
choice of tinnitus masker in the literature and by using statistical and data mining techniques. The further work in this research would lead to the development of a decision support system for tinnitus masker with an explanation that how that decision was obtained
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