1,556 research outputs found
Ada style guide (version 1.1)
Ada is a programming language of considerable expressive power. The Ada Language Reference Manual provides a thorough definition of the language. However, it does not offer sufficient guidance on the appropriate use of Ada's powerful features. For this reason, the Goddard Space Flight Center Ada User's Group has produced this style guide which addresses such program style issues. The guide covers three areas of Ada program style: the structural decomposition of a program; the coding and the use of specific Ada features; and the textural formatting of a program
The Ursinus Weekly, April 17, 1950
Junior prom to highlight week\u27s social calendar • Forum to present prominent explorer for monthly event • Students select leaders for WSGA, WAA, and Y • Senator to address PAC Wednesday • IRC group attends model UN assembly • French club plans April piano recital • ICG members help draft constitution • Scientists to participate in Y-sponsored panel • Practices continue for spring comedy • Board names six to Weekly editorial staff • Commission to discuss admittance of Negroes • \u27Waltz dream\u27 scores hit with Ursinus audiences • P.A.C. visits Washington on annually planned trip • Swedish books add variety to library language shelves • Alumnus suggests constitution change for alumni group • Three men and a rebel tour southland as vacation interrupts semester work • Ursinus welcomes new dance band • Grizzly nine tours south; trip is judged successful • Rampaging grizzlies open season with pair of wins • Tennis belles open against Bryn Mawr • Nine veterans back for softball season • Stine and Shreiner win men\u27s, girls\u27 intramurals • Gurzynski is named head football coach for 1950 • Annex wins honors on intramural night • Garris\u27 pageant selected for \u2750 May Day themehttps://digitalcommons.ursinus.edu/weekly/1589/thumbnail.jp
The Ursinus Weekly, January 8, 1951
Group attends NSA meeting during holiday • French Club conducts meeting and lists plans • Final examinations to continue January 18-26; Schedule posted • Chess Club to play • Rice to give talk on Atlantic Union • Sophomore class to sponsor square dance Friday night • President McClure issues statement on present draft situation at Ursinus • College offers new two-term Summer school • Graduate featured in magazine story • Curtain Club announces next group production • Students participate in television show • Forty attend Philly luncheon of Ursinus Women\u27s Club • New Rosicrucians feted • Miller appears on Quaker City TV University • Ursinus grad to hold state executive office • Opinions on Korea: Ursinus representatives speak their minds • Double-duty secretary gowns directors for processions, manages switchboard • Downpour predicted; Waterproof notes, dry textbooks, precautions prescribed • Prognostication shows alteration of future strife in college life • Bears upset F&M 73-55 in pre-holiday thriller • Grapplers win opener over Muhlenberg, 23-9 • Grizzlies absorb second cage loss to Pharmacy five • Bruins top Drexel 80-74 in initial league contest • Trials highlight MSGA pre-vacation meetinghttps://digitalcommons.ursinus.edu/weekly/1556/thumbnail.jp
The Ursinus Weekly, April 23, 1951
Students elect Hartzel, Hall, Ely, Landis: Women\u27s government, YM-YWCA, WAA choose new organization heads • Drs. Armstrong, Mattern, Baker to be speakers • Pa. Dutch film scheduled for benefit show • Nancy Bare and Jackie Keller to share big Arsenic role • Six juniors receive Cub and Key memberships for outstanding work • Lantern deadline set for Friday • Barbara Crawford crowned queen of Junior Prom; 4 attendants named • Editorials: Nominations open; Voting results analyzed • French situation reversed • Truman vs MacArthur • Letters to the editor • Weekly back issues yield untold wealth of pertinent advertisements • Recordak machine aids in library efficiency • Posting of exams recalls looming fate of students • Baseball field dedicated in honor of Dr. John Price • Girls\u27 tennis team downs Swarthmore for second victory • Curtis takes lead in intramural loop • Netmen lose opener to Haverford; Girls triumph over Chestnut Hill, 4-1 • Bears defeat Pharmacy to gain initial triumph, 14-5 • Bears defeat Haverford for second victory, 7-5 • Tennis team wins first court game • Cumpstone breaks own javelin mark as Grizzlies lose • Curtain Club levies charge for using stage materials • Freshmen, Sophs announce picnic at Island Grove • Blood donors must register, get permission if under-age • Dr. Phillips reads unknown Kipling short story to group • Curtain Club to elect • Varsity Club show ready for production Friday night • Red Cross to sponsor water safety instructor\u27s course • Seniors plan picnic • French Club gives recital featuring pianists, vocalists • Newman Club film slated • Nels Fellman elected head of Delta Pi Sigma frathttps://digitalcommons.ursinus.edu/weekly/1566/thumbnail.jp
Infection of the brown alga Ectocarpus siliculosus by the oomycete Eurychasma dicksonii induces oxidative stress and halogen metabolism
Acknowledgments We would like to thank the Aberdeen Proteome Facility, especially Phil Cash, David Stead and Evelyn Argo for assistance with 2D electrophoresis and mass spectrometry. M.S. gratefully acknowledges a Marie Curie PhD fellowship from the European Commission (ECOSUMMER, MEST-CT-2005-20501), a joint FEMS/ESCMID Research Fellowship and the Genomia Fund. C.M.M.G. is supported by a Marie Curie postdoctoral fellowship (MEIF-CT-2006-022837), a Marie Curie Re-Integration Grant (PERG03-GA-2008-230865) and a New Investigator grant from the UK Natural Environment Research Council (NERC, grant NE/J00460X/1). F.C.K. would like to thank NERC for funding (grants NE/D521522/1, NE/F012705/1 and Oceans 2025 / WP 4.5). L.J.G.-B., C.M.M.G., F.C.K. and P.W. would like to acknowledge funding from NERC for a Strategic Ocean Funding Initiative award (NE/F012578/1). Funding from the MASTS pooling initiative (Marine Alliance for Science and Technology for Scotland, funded by the Scottish Funding Council and contributing institutions; grant reference HR09011) and from the TOTAL Foundation (Paris) to F.C.K. is gratefully acknowledged. Finally, we would like to thank the two anonymous referees for constructive suggestions to improve our manuscript.Peer reviewedPublisher PD
Introduced annuals mediate climate-driven community change in Mediterranean prairies of the Pacific Northwest, USA
12 pagesAim: How climate change will alter plant functional group composition is a critical
question given the well-recognized
effects of plant functional groups on ecosystem
services. While climate can have direct effects on different functional groups, indirect
effects mediated through changes in biotic interactions have the potential to
amplify or counteract direct climatic effects. As a result, identifying the underlying
causes for climate effects on plant communities is important to conservation and
restoration initiatives.
Location: Western Pacific Northwest (Oregon and Washington), USA.
Methods: Utilizing a 3-year
experiment in three prairie sites across a 520-km
latitudinal
climate gradient, we manipulated temperature and precipitation and recorded
plant cover at the peak of each growing season. We used structural equation models
to examine how abiotic drivers (i.e. temperature, moisture and soil nitrogen) controlled
functional group cover, and how these groups in turn determined overall plant
diversity.
Results: Warming increased the cover of introduced annual species, causing subsequent
declines in other functional groups and diversity. While we found direct effects
of temperature and moisture on extant vegetation (i.e. native annuals, native
perennials and introduced perennials), these effects were typically amplified by introduced
annuals. Competition for moisture and light or space, rather than nitrogen,
were critical mechanisms of community change in this seasonally water-limited
Mediterranean-climate
system. Diversity declines were driven by reductions in native
annual cover and increasing dominance by introduced annuals.
Main conclusions: A shift towards increasing introduced annual dominance in this
system may be akin to that previously experienced in California grasslands, resulting
in the “Californication” of Pacific Northwest prairies. Such a phenomenon may challenge
local land managers in their efforts to maintain species-rich
and functionally
diverse prairie ecosystems in the future
Forecasting the combined effects of urbanization and climate change on stream ecosystems: from impacts to management options
Streams collect runoff, heat, and sediment from their watersheds, making them highly vulnerable to anthropogenic disturbances such as urbanization and climate change. Forecasting the effects of these disturbances using process-based models is critical to identifying the form and magnitude of likely impacts. Here, we integrate a new biotic model with four previously developed physical models (downscaled climate projections, stream hydrology, geomorphology, and water temperature) to predict how stream fish growth and reproduction will most probably respond to shifts in climate and urbanization over the next several decades.The biotic submodel couples dynamics in fish populations and habitat suitability to predict fish assemblage composition, based on readily available biotic information (preferences for habitat, temperature, and food, and characteristics of spawning) and day-to-day variability in stream conditions.We illustrate the model using Piedmont headwater streams in the Chesapeake Bay watershed of the USA, projecting ten scenarios: Baseline (low urbanization; no on-going construction; and present-day climate); one Urbanization scenario (higher impervious surface, lower forest cover, significant construction activity); four future climate change scenarios [Hadley CM3 and Parallel Climate Models under medium-high (A2) and medium-low (B2) emissions scenarios]; and the same four climate change scenarios plus Urbanization.Urbanization alone depressed growth or reproduction of 8 of 39 species, while climate change alone depressed 22 to 29 species. Almost every recreationally important species (i.e. trouts, basses, sunfishes) and six of the ten currently most common species were predicted to be significantly stressed. The combined effect of climate change and urbanization on adult growth was sometimes large compared to the effect of either stressor alone. Thus, the model predicts considerable change in fish assemblage composition, including loss of diversity.Synthesis and applications. The interaction of climate change and urban growth may entail significant reconfiguring of headwater streams, including a loss of ecosystem structure and services, which will be more costly than climate change alone. On local scales, stakeholders cannot control climate drivers but they can mitigate stream impacts via careful land use. Therefore, to conserve stream ecosystems, we recommend that proactive measures be taken to insure against species loss or severe population declines. Delays will inevitably exacerbate the impacts of both climate change and urbanization on headwater systems
Ultra-Stable Environment Control for the NEID Spectrometer: Design and Performance Demonstration
Two key areas of emphasis in contemporary experimental exoplanet science are
the detailed characterization of transiting terrestrial planets, and the search
for Earth analog planets to be targeted by future imaging missions. Both of
these pursuits are dependent on an order-of-magnitude improvement in the
measurement of stellar radial velocities (RV), setting a requirement on
single-measurement instrumental uncertainty of order 10 cm/s. Achieving such
extraordinary precision on a high-resolution spectrometer requires
thermo-mechanically stabilizing the instrument to unprecedented levels. Here,
we describe the Environment Control System (ECS) of the NEID Spectrometer,
which will be commissioned on the 3.5 m WIYN Telescope at Kitt Peak National
Observatory in 2019, and has a performance specification of on-sky RV precision
< 50 cm/s. Because NEID's optical table and mounts are made from aluminum,
which has a high coefficient of thermal expansion, sub-milliKelvin temperature
control is especially critical. NEID inherits its ECS from that of the
Habitable-zone Planet Finder (HPF), but with modifications for improved
performance and operation near room temperature. Our full-system stability test
shows the NEID system exceeds the already impressive performance of HPF,
maintaining vacuum pressures below Torr and an RMS temperature
stability better than 0.4 mK over 30 days. Our ECS design is fully open-source;
the design of our temperature-controlled vacuum chamber has already been made
public, and here we release the electrical schematics for our custom
Temperature Monitoring and Control (TMC) system.Comment: Accepted for publication in JATI
Dark sectors 2016 Workshop: community report
This report, based on the Dark Sectors workshop at SLAC in April 2016,
summarizes the scientific importance of searches for dark sector dark matter
and forces at masses beneath the weak-scale, the status of this broad
international field, the important milestones motivating future exploration,
and promising experimental opportunities to reach these milestones over the
next 5-10 years
Study of Gluon versus Quark Fragmentation in and Events at \sqrt{s}=10 GeV
Using data collected with the CLEO II detector at the Cornell Electron
Storage Ring, we determine the ratio R(chrg) for the mean charged multiplicity
observed in Upsilon(1S)->gggamma events, to the mean charged multiplicity
observed in e+e- -> qqbar gamma events. We find R(chrg)=1.04+/-0.02+/-0.05 for
jet-jet masses less than 7 GeV.Comment: 15 pages, postscript file also available through
http://w4.lns.cornell.edu/public/CLN
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