1,921 research outputs found
The Morphology of Sex: Tracking Change in the Sex Discourse at Augustana College
Here, I track how the criteria for deeming sex as acceptable or unacceptable have changed over time at Augustana College. To do so, I apply two critical lenses to archived issues of the Augustana Observer. The first lens involves Rubin\u27s concept of the sex hierarchy, a variety of categories by which we may judge sex as good or bad. The second lens is related to Berlant and Warner\u27s national heterosexuality, a concept that claims that sexual norms are intrinsically elastic but politically, culturally, and economically firm under capitalism. Making use of a localized snapshot approach, I use recent Augustana history to demonstrate the fluid and intermittent properties of the sex discourse
The Morphology of Sex: Tracking Change in the Sex Discourse at Augustana College
ere, I track how the criteria for deeming sex as acceptable or unacceptable have changed over time at Augustana College. To do so, I apply two critical lenses to archived issues of the Augustana Observer. The first lens involves Rubin\u27s concept of the sex hierarchy, a variety of categories by which we may judge sex as good or bad. The second lens is related to Berlant and Warner\u27s national heterosexuality, a concept that claims that sexual norms are intrinsically elastic but politically, culturally, and economically firm under capitalism. Making use of a localized snapshot approach, I use recent Augustana history to demonstrate the fluid and intermittent properties of the sex discourse
The status of music education in the public junior high schools of Massachusetts as of the year 1945-1955
Thesis (Ed.M.)--Boston Universit
By-passing the Kohn-Sham equations with machine learning
Last year, at least 30,000 scientific papers used the Kohn-Sham scheme of
density functional theory to solve electronic structure problems in a wide
variety of scientific fields, ranging from materials science to biochemistry to
astrophysics. Machine learning holds the promise of learning the kinetic energy
functional via examples, by-passing the need to solve the Kohn-Sham equations.
This should yield substantial savings in computer time, allowing either larger
systems or longer time-scales to be tackled, but attempts to machine-learn this
functional have been limited by the need to find its derivative. The present
work overcomes this difficulty by directly learning the density-potential and
energy-density maps for test systems and various molecules. Both improved
accuracy and lower computational cost with this method are demonstrated by
reproducing DFT energies for a range of molecular geometries generated during
molecular dynamics simulations. Moreover, the methodology could be applied
directly to quantum chemical calculations, allowing construction of density
functionals of quantum-chemical accuracy
Joint Comprehensive Plan of Action Opportunity for HIF in Iran
Cooperation in fusion energy research and
high-energy accelerators has been a “bridge over
troubled waters” for most of a century. Physics
research has traditionally been an international
endeavor, involving the earliest accelerator
developments, and hitting a hiatus only during
World War II. Fusion energy research using
magnetic confinement was internationalized by
the Geneva meeting in 1958. Iran is and has been
a participant in fusion research, even during the
troubles of the past couple decades..
Readiness of HIF Using the Single Pass RF Driver
Readiness for a concerted push to power production
was the underlying theme from the inaugural
HIF Workshop in 1976 through the review
of ICF programs by DOE’s Energy Research
and Advisory Board in 1979. Using John
Lawson’s 1987 paper “Whither Heavy Ion Fusion?”
[1] as a foil, this paper discusses the continuing
vitality of the argument for HIF’s readiness
against the backdrop that this vision is not
in evidence today, having been occluded by political
policies causing diversion of the HIF
community into peripheral science that, although
excellent, is in fact not required to complete
the development of a HIF energy source..
Joint Comprehensive Plan of Action Opportunity for HIF in Iran
Cooperation in fusion energy research and
high-energy accelerators has been a “bridge over
troubled waters” for most of a century. Physics
research has traditionally been an international
endeavor, involving the earliest accelerator
developments, and hitting a hiatus only during
World War II. Fusion energy research using
magnetic confinement was internationalized by
the Geneva meeting in 1958. Iran is and has been
a participant in fusion research, even during the
troubles of the past couple decades..
Improvements to 232-thorium, 230-thorium, and 231-protactinium analysis in seawater arising from GEOTRACES intercalibration
The GEOTRACES program requires the analysis of large numbers of seawater samples for ^(232)Th, ^(230)Th, and ^(231)Pa. During the GEOTRACES international intercalibration exercise, we encountered unexpected difficulties with recovery and contamination of these isotopes, ^(232)Th in particular. Experiments were carried out to identify the source of these issues, leading to a more streamlined and efficient procedure. The two particular problems that we identified and corrected were (1) frits in columns supplied by Bio-Rad Laboratories caused loss of Th during column chemistry and (2) new batches of AG1-X8 resin supplied by Bio-Rad Laboratories released more than 100 pg of ^(232)Th during elution of sample. To improve yields and blanks, we implemented a series of changes including switching to Eichrom anion exchange resin (100-200 μm mesh) and Environmental Express columns. All Th and Pa samples were analyzed on a Neptune multi-collector inductively-coupled-plasma mass spectrometer (MC-ICP-MS) using peak hopping of ^(230)Th and ^(229)Th on the central SEM, with either ^(232)Th, ^(236)U (or both) used to monitor for beam intensity. We used in-house laboratory standards to check for machine reproducibility, and the GEOTRACES intercalibration standard to check for accuracy. Over a 1-y period, the 2 s.d. reproducibility on the GEOTRACES SW STD 2010-1 was 2.5% for ^(230)Th, 1.8% for ^(232)Th, and 4% for ^(231)Pa. The lessons learned during this intercalibration process will be of value to those analyzing U-Th-Pa and rare earth elements as part of the GEOTRACES program as well as those using U-series elements in other applications that require high yields and low blanks, such as geochronology
A Novel, Contactless, Portable “Spot-Check” Device Accurately Measures Respiratory Rate
Respiratory rate (RR) is an important vital sign used in the assessment of acutely ill patients. It is also used as to predict serious deterioration in a patient's clinical condition. Convenient electronic devices exist for measurement of pulse, blood pressure, oxygen saturation and temperature. Although devices which measure RR exist, none has entered everyday clinical practice.
We developed a contactless portable respiratory rate monitor (CPRM) and evaluated the agreement in respiratory rate measurements between existing methods and our new device. The CPRM uses thermal anemometry to measure breath signals during inspiration and expiration.
RR data were collected from 52 healthy adult volunteers using respiratory inductance plethysmography (RIP) bands (established contact method), visual counting of chest movements (established non-contact method) and the CPRM (new method), simultaneously. Two differently shaped funnel attachments were evaluated for each volunteer.
Data showed good agreement between measurements from the CPRM and the gold standard RIP, with intra-class correlation coefficient (ICC): 0.836, mean difference 0.46 and 95% limits of agreement of -5.90 to 6.83. When separate air inlet funnels of the CPRM were analysed, stronger agreement was seen with an elliptical air inlet; ICC 0.908, mean difference 0.37 with 95% limits of agreement -4.35 to 5.08.
A contactless device for accurately and quickly measuring respiratory rate will be an important triage tool in the clinical assessment of patients. More testing is needed to explore the reasons for outlying measurements and to evaluate in the clinical setting
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