973 research outputs found
Effect of wind on evaporative cooling and surface temperature in dairy cattle
Missouri Agricultural Experiment Station and the United States Department of Agriculture cooperating.Includes bibliographical references.Includes bibliographical references
Influence of humidity and wind on heat loads within dairy barns.
This bulletin is a report on Department of Agricultural Engineering Research Project 66, 'Climatic Laboratories'--P. [2].Digitized 2007 AES.Includes bibliographical references (page 28)
Effect of humidity on insensible weight loss, total vaporized moisture, and surface temperature in cattle.
Missouri Agricultural Experiment Station and the United States Department of Agriculture cooperating assisted by the Office of Naval Research."This bulletin is a report from the Department of Dairy Husbandry, research project No. 100, and Agricultural Engineering, research project No. 66 entitled 'Influence of climate factor on productivity'"--P. [2].Includes bibliographical references
Influence of temperature on insensible weight loss and moisture vaporization in Brahman, Brown Swiss, Holstein and Jersey cattle.
Digitized 2007 AES.Includes bibliographical references
The Ursinus Weekly, November 1, 1907
Phantom party at Olevian ⢠Football ⢠Historical Political meeting ⢠The Schubert string quartette ⢠Editorial: Smiles ⢠Society ⢠Personals ⢠Seminary notes ⢠College world ⢠Alumni notes ⢠Literary Supplement: The lack of appreciation of the beautiful; A defense of American poetry; The danger of hero worship in a democracy; Hallowe\u27en; The price of an experience; Hannibalhttps://digitalcommons.ursinus.edu/weekly/2882/thumbnail.jp
An Unbiased Survey of 500 Nearby Stars for Debris Disks: A JCMT Legacy Program
We present the scientific motivation and observing plan for an upcoming
detection survey for debris disks using the James Clerk Maxwell Telescope. The
SCUBA-2 Unbiased Nearby Stars (SUNS) Survey will observe 500 nearby main
sequence and sub-giant stars (100 of each of the A, F, G, K and M spectral
classes) to the 850 micron extragalactic confusion limit to search for evidence
of submillimeter excess, an indication of circumstellar material. The survey
distance boundaries are 8.6, 16.5, 22, 25 and 45 pc for M, K, G, F and A stars,
respectively, and all targets lie between the declinations of -40 deg to 80
deg. In this survey, no star will be rejected based on its inherent properties:
binarity, presence of planetary companions, spectral type or age. This will be
the first unbiased survey for debris disks since IRAS. We expect to detect ~125
debris disks, including ~50 cold disks not detectable in current shorter
wavelength surveys. A substantial amount of complementary data will be required
to constrain the temperatures and masses of discovered disks. High resolution
studies will likely be required to resolve many of the disks. Therefore, these
systems will be the focus of future observational studies using a variety of
observatories to characterize their physical properties. For non-detected
systems, this survey will set constraints (upper limits) on the amount of
circumstellar dust, of typically 200 times the Kuiper Belt mass, but as low as
10 times the Kuiper Belt mass for the nearest stars in the sample
(approximately 2 pc).Comment: 11 pages, 7 figures (3 color), accepted by the Publications of the
Astronomical Society of the Pacifi
Vascular adaptation to exercise in humans: Role of hemodynamic stimuli
On the 400th anniversary of Harveyâs Lumleian lectures, this review focuses on âhemodynamicâ forces associated with the movement of blood through arteries in humans and the functional and structural adaptations that result from repeated episodic exposure to such stimuli. The late 20th century discovery that endothelial cells modify arterial tone via paracrine transduction provoked studies exploring the direct mechanical effects of blood flow and pressure on vascular function and adaptation in vivo. In this review, we address the impact of distinct hemodynamic signals that occur in response to exercise, the interrelationships between these signals, the nature of the adaptive responses that manifest under different physiological conditions, and the implications for human health. Exercise modifies blood flow, luminal shear stress, arterial pressure, and tangential wall stress, all of which can transduce changes in arterial function, diameter, and wall thickness. There are important clinical implications of the adaptation that occurs as a consequence of repeated hemodynamic stimulation associated with exercise training in humans, including impacts on atherosclerotic risk in conduit arteries, the control of blood pressure in resistance vessels, oxygen delivery and diffusion, and microvascular health. Exercise training studies have demonstrated that direct hemodynamic impacts on the health of the artery wall contribute to the well-established decrease in cardiovascular risk attributed to physical activity. Š 2017 the American Physiological Society
The Deglaciation of Maine, USA
The glacial geology of Maine records the northward recession of the Late Wisconsinan Laurentide Ice Sheet, followed by development of a residual ice cap in the Maine-QuĂŠbec border region due to marine transgression of the St. Lawrence Lowland in Canada. The pattern of deglaciation across southern Maine has been reconstructed from numerous end moraines, deltas and submarine fans deposited during marine transgression of the coastal lowland. Inland from the marine limit, a less-detailed sequence of deglaciation is recorded by striation patterns, meltwater channels, scattered moraines and waterlain deposits that constrain the trend of the ice margin. There is no evidence that the northern Maine ice cap extended as far south-west as the Boundary Mountains and New Hampshire border.
Newly-obtained radiocarbon ages from marine and terrestrial ice-proximal environments have improved the chronology of glacial recession in Maine. Many of these ages were obtained by coring late-glacial sediments beneath ponds and lakes. Data from this study show that the state was deglaciated between about 14.5 and 11.0 ka BP (14C years). The coastal moraine belt in southern Maine was deposited by oscillatory ice-margin retreat during the cold pre-Bølling time. Rapid ice recession to northern Maine then occurred between 13 and 11 ka BP, during the warmer Bølling/Allerød chronozones. Radiocarbon-dated pond sediments in western and northern Maine show lithologic evidence of Younger Dryas climatic cooling and persistence of the northern ice cap into Younger Dryas time.
A large discrepancy still exists between radiocarbon ages of deglaciation in coastal south-western Maine and the timing of ice retreat indicated by New England varve records in areas to the west. Part of this problem may stem from the uncertainty of reservoir corrections applied to the radiocarbon ages of marine organics
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