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Briar, VA, United States

Sweet Briar College is a liberal arts women's college in Sweet Briar, Virginia, United States, about 12 miles north of Lynchburg, Virginia. The school's Latin motto translates as: "She who has earned the rose may bear it."The college is on 3,250 acres donated by the founding family of Indiana Fletcher Williams. It is accredited by the Southern Association of Colleges and Schools. Wikipedia.

Jaeger T.R.,U.S. Navy | Hyman S.D.,Sweet Briar College | Kassim N.E.,U.S. Navy | Lazio T.J.W.,Jet Propulsion Laboratory
Astronomical Journal

We report the results of a low frequency radio variability and slow transient search using archival observations from the Very Long Array. We selected six 325MHz radio observations from the spring of 2006, each centered on the Spitzer-Space-Telescope Wide-area Infrared Extragalactic Survey (SWIRE) Deep Field: 1046+59. Observations were spaced between one day to threemonths, with a typical single-epoch peak flux sensitivity below 0.2mJybeam -1 near the field pointing center. We describe the observation parameters, data post-processing, and search methodology used to identify variable and transient emission. Our search revealed multiple variable sources and the presence of one, day-scale transient event with no apparent astronomical counterpart. This detection implies a transient rate of 1 1 event per 6.5 deg 2 per 72 observing hours in the direction of 1046+59 and an isotropic transient surface density Σ = 0.12 deg -2at 95% confidence for sources with average peak flux density higher than 2.1mJy over 12hr. © 2012. The American Astronomical Society. All rights reserved. Source

Gottlieb D.A.,Sweet Briar College | Rescorla R.A.,University of Pennsylvania
Journal of Experimental Psychology: Animal Behavior Processes

D. A. Gottlieb (2008) reported finding no effects of number of conditioning trials in a series of between-subjects magazine approach experiments, when number of sessions and total training time were held constant. This article reports 7 comparable within-subject experiments that looked for effects of number of trials in a variety of conditioning preparations. Experiments 1-3 detected effects of multiplying the number of trials by factors of 4 and 8 in a conditioned magazine approach procedure in which visual and auditory stimuli were paired with food. Experiments 4A and 4B detected effects of a factor of 4 trials in a conditioned flavor preference procedure in which flavors were paired with polycose. Experiments 5 and 6 detected an effect of a factor of 3 trials in a conditioned taste aversion procedure and in a fear conditioning procedure, respectively. Results suggest that variables other than number of trials might play important roles in determining the acquisition of conditioned responding, but effects of number of trials can be detected with sensitive enough procedures. © 2010 American Psychological Association. Source

Biogeomorphology is an increasingly popular field of study, but the approaches to biogeomorphic research and methods are not yet well developed. This research evaluated ecologic and geomorphic interactions after fire within the alpine treeline ecotone of Glacier National Park, Montana. Associations between soil conditions and vegetation, the effect of vegetation edges on soil characteristics, and the influence of quadrat size on select vegetation and soil variables were evaluated with the use of fieldwork and statistics. Of the 11 ecologic/soil variables compared, three were significantly correlated - soil compaction and krummholz density, soil loss and percent vegetation, and soil loss and burn severity. The ecologic edge between burned and unburned krummholz had significant influence on soil compaction, clast size, and effective soil depth patterns. Quadrat size did not have much influence on average results for either soil or vegetation variables. These findings highlight both the potential biogeomorphic interactions as well as interesting results that were not significant, and will contribute to the advancement of biogeomorphology. The results also provide novel information on alpine treeline ecotone response after fire. © 2016 Elsevier B.V. Source

Pendry L.F.,University of Exeter | Salvatore J.,Sweet Briar College
Computers in Human Behavior

There has been much debate surrounding the potential benefits and costs of online interaction. The present research argues that engagement with online discussion forums can have underappreciated benefits for users' well-being and engagement in offline civic action, and that identification with other online forum users plays a key role in this regard. Users of a variety of online discussion forums participated in this study. We hypothesized and found that participants who felt their expectations had been exceeded by the forum reported higher levels of forum identification. Identification, in turn, predicted their satisfaction with life and involvement in offline civic activities. Formal analyses confirmed that identification served as a mediator for both of these outcomes. Importantly, whether the forum concerned a stigmatized topic moderated certain of these relationships. Findings are discussed in the context of theoretical and applied implications. © 2015 The Authors. Source

Senadheera S.N.,University of Kansas | Yousef A.L.,Sweet Briar College | Givens R.S.,University of Kansas
Beilstein Journal of Organic Chemistry

We have developed a new photoremovable protecting group for caging phosphates in the near UV. Diethyl 2-(4-hydroxy-1-naphthyl)- 2-oxoethyl phosphate (14a) quantitatively releases diethyl phosphate upon irradiation in aq MeOH or aq MeCN at 350 nm, with quantum efficiencies ranging from 0.021 to 0.067 depending on the solvent composition. The deprotection reactions originate from the triplet excited state, are robust under ambient conditions and can be carried on to 100% conversion. Similar results were found with diethyl 2-(4-methoxy-1-naphthyl)-2-oxoethyl phosphate (14b), although it was significantly less efficient compared with 14a. A key step in the deprotection reaction in aq MeOH is considered to be a Favorskii rearrangement of the naphthyl ketone motif of 14a,b to naphthylacetate esters 25 and 26. Disruption of the ketone-naphthyl ring conjugation significantly shifts the photoproduct absorption away from the effective incident wavelength for decaging of 14, driving the reaction to completion. The Favorskii rearrangement does not occur in aqueous acetonitrile although diethyl phosphate is released. Other substitution patterns on the naphthyl or quinolin-5-yl core, such as the 2,6-naphthyl 10 or 8-benzyloxyquinolin-5-yl 24 platforms, also do not rearrange by aryl migration upon photolysis and, therefore, do not proceed to completion. The 2,6-naphthyl ketone platform instead remains intact whereas the quinolin-5-yl ketone fragments to a much more complex, highly absorbing reaction mixture that competes for the incident light. © 2014 Senadheera et al; licensee Beilstein-Institut. Source

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