140 research outputs found
Faculty Artist Recital: Ko Iwasaki, Cello; David Shrader, Percussion; January 15, 1976
Capen AuditoriumThursday EveningJanuary 15, 19768:15 p.m
Ensemble Concerts: Chamber Wind Ensemble, February 22, 1976
Capen AuditoriumSunday AfternoonFebruary 22, 19762:30 p.m
Response of corn yields in a Planosol soil to surface drainage, cropping system and variable fertilizer treatments
The Edina soil series of southeastern Iowa and northern Missouri are areas of relatively flat topography and poor internal drainage. For these areas, where the topography and soils permit, surface drainage is the most practical method of removing excess water from the land. One method of surface drainage that has been used on the Edina soils is bedding, in which the field is divided into narrow-width plow lands with the deadfurrows running parallel to the prevailing land slope.
Little is known about the relative returns from investment in a bedding system in comparison with other surface or subsurface drainage methods. Bedding requires that some topsoil be moved to obtain the desired grade for drainage. The effect on crop yields of topsoil removal and movement in land-forming operations such as bedding, however, is not quantitatively understood. It is the general purpose of this bulletin to present and analyze 6 years of corn-yield data involving drainage (bedded versus level), cropping and fertilizer variables from a study on the Southern Iowa Experimental Farm near Bloomfield
Graduate Recital: David Little, Baritone; Roberta Stimac, Piano; Julian Dawson, Piano; Aris Chavez, Clarinet; David Shrader, Percussion; May 5, 1977
Centennial East Recital HallThursday EveningMay 5, 19778:00 p.m
Are there phylogenetic differences in salivary tannin-binding proteins between browsers and grazers, and ruminants and hindgut fermenters?
While feeding, mammalian browsers (primarily eat woody plants) encounter secondary
metabolites such as tannins. Browsers may bind these tannins using salivary proteins,
whereas mammalian grazers (primarily eat grasses that generally lack tannins)
likely would not. Ruminant browsers rechew their food (ruminate) to increase the
effectiveness of digestion, which may make them more effective at binding tannins
than nonruminants. Few studies have included a sufficient number of species to consider
possible scaling with body mass or phylogenetic effects on salivary proteins.
Controlling for phylogeny, we ran inhibition radial diffusion assays of the saliva of
28 species of African herbivores that varied in size, feeding strategy, and digestive
system. We could not detect the presence of salivary proline-rich proteins that bind
tannins in any of these species. However, using the inhibition radial diffusion assay,
we found considerable abilities to cope with tannins in all species, albeit to varying
degrees. We found no differences between browsers and grazers in the effectiveness
of their salivary proteins to bind to and precipitate tannins, nor between ruminants
and nonruminants, or scaling with body mass. Three species bound all tannins,
but their feeding niches included one browser (gray duiker), one mixed feeder (bush
pig), and one grazer (red hartebeest). Five closely related species of small ruminant
browsers were very effective in binding tannins. Megaherbivores, considered generalists
on account of their large body size, were capable of binding tannins. However the grazing white rhinoceros was almost as effective at binding tannins as the megaherbivore
browsers. We conclude, contrary to earlier predictions, that there were
no differences in the relative salivary tannin-binding capability that was related to
common ancestry (phylogeny) or to differences in body size.The National Research Foundation of South Africa, the Gay Langmuir Bursary from the University of KwaZulu-Natal and the
Herrick Trust of Kent State University.http://www.ecolevol.orgam2020Mammal Research InstituteZoology and Entomolog
Limits To The Use Of Threatened Species Lists
Threatened species lists are designed primarily to provide an easily understood qualitative estimate of risk of extinction. Although these estimates of risk can be accurate, the lists have inevitably become linked to several decision-making processes. There are four ways in which such lists are commonly used: to set priorities for resource allocation for species recovery; to inform reserve system design; to constrain development and exploitation; and to report on the state of the environment. The lists were not designed for any one of these purposes, and consequently perform some of them poorly. We discuss why, if and how they should be used to achieve these purposes
PenQuest Volume 1, Number 2
Table of Contents for this Volume:
Untitled by Julie Ambrose
Night by Judith Gallo
Untitled by Judy Gozdur
the shamans by Charles Riddles
Untitled by Jerry Connell
Untitled by Laura Woods
Untitled by LEMA
Wicked Bird by Laura Jo Last
Untitled by Rick Dentos
Untitled by Jeni Moody
Untitled by Bettie W. Kwibs
Untitled by Joann Stagg
The Protector Stood by Laura Jo Last
Visions of Salome by Charles Riddles
Untitled by Thomas Tutten
Kennesaw Line by Don Ova-Dunaway
Stone Blood by Mary Ellen C. Wofford
Untitled by Roger Whitt Jr.
Untitled by C. Wingate
Untitled by Doug Dorey
Untitled by Karen Blumberg
Untitled by Beverly Oviatt
Untitled by Virginia Shrader
The Crapulous Credo of Charles C. by Charles Riddles
the brave and the true by David Reed
Untitled by Charles Gutierrez
Canoe Creek by Patricia Kraft
Untitled by Linda Bobinger
The Man in the Iron Lung by Patricia Kraft
Untitled by Roger Whitt, Jr.
Childish Things by Kathleen Gay
Untitled by Joseph Avanzini
The Lover by Mary S. Aken
Untitled by Ann Harrington
And He Taketh Away by David Reed
Untitled by Mary Graham
Untitled by Melody A. Cummons
Untitled by Karen Blumberg
To The Poets by Judith Gallo
Untitled by Ann Harringto
New genetic loci implicated in fasting glucose homeostasis and their impact on type 2 diabetes risk.
Levels of circulating glucose are tightly regulated. To identify new loci influencing glycemic traits, we performed meta-analyses of 21 genome-wide association studies informative for fasting glucose, fasting insulin and indices of beta-cell function (HOMA-B) and insulin resistance (HOMA-IR) in up to 46,186 nondiabetic participants. Follow-up of 25 loci in up to 76,558 additional subjects identified 16 loci associated with fasting glucose and HOMA-B and two loci associated with fasting insulin and HOMA-IR. These include nine loci newly associated with fasting glucose (in or near ADCY5, MADD, ADRA2A, CRY2, FADS1, GLIS3, SLC2A2, PROX1 and C2CD4B) and one influencing fasting insulin and HOMA-IR (near IGF1). We also demonstrated association of ADCY5, PROX1, GCK, GCKR and DGKB-TMEM195 with type 2 diabetes. Within these loci, likely biological candidate genes influence signal transduction, cell proliferation, development, glucose-sensing and circadian regulation. Our results demonstrate that genetic studies of glycemic traits can identify type 2 diabetes risk loci, as well as loci containing gene variants that are associated with a modest elevation in glucose levels but are not associated with overt diabetes
The effects of hip muscle strengthening on knee load, pain, and function in people with knee osteoarthritis: a protocol for a randomised, single-blind controlled trial
BACKGROUND: Lower limb strengthening exercises are an important component of the treatment for knee osteoarthritis (OA). Strengthening the hip abductor and adductor muscles may influence joint loading and/or OA-related symptoms, but no study has evaluated these hypotheses directly. The aim of this randomised, single-blind controlled trial is to determine whether hip abductor and adductor muscle strengthening can reduce knee load and improve pain and physical function in people with medial compartment knee OA. METHODS/DESIGN: 88 participants with painful, radiographically confirmed medial compartment knee OA and varus alignment will be recruited from the community and randomly allocated to a hip strengthening or control group using concealed allocation stratified by disease severity. The hip strengthening group will perform 6 exercises to strengthen the hip abductor and adductor muscles at home 5 times per week for 12 weeks. They will consult with a physiotherapist on 7 occasions to be taught the exercises and progress exercise resistance. The control group will be requested to continue with their usual care. Blinded follow up assessment will be conducted at 12 weeks after randomisation. The primary outcome measure is the change in the peak external knee adduction moment measured during walking. Questionnaires will assess changes in pain and physical function as well as overall perceived rating of change. An intention-to-treat analysis will be performed using linear regression modelling and adjusting for baseline outcome values and other demographic characteristics. DISCUSSION: Results from this trial will contribute to the evidence regarding the effect of hip strengthening on knee loads and symptoms in people with medial compartment knee OA. If shown to reduce the knee adduction moment, hip strengthening has the potential to slow disease progression. TRIAL REGISTRATION: Australia New Zealand Clinical Trials Registry ACTR12607000001493
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