1,767 research outputs found
Ecology of the Festuca Grassland in Central Saskatchewan
No full textFor some time it has been realized that the grassland occuring in the 'park belt' or 'aspen grove region' bounding the Canadian prairies on the north, and forming the transition between it and the boreal forest, does not consist merely of extensions of the adjacent grassland communities (true prairie or mixed prairie) among the patches of woodland which occur in that region; but is characterized by a different group of dominant grasses from those occuring elsewhere in North America.
Although other investigators have mentioned this fact and written about the flora in other parts of the region, their data have been based largely on methods of estimation chiefly of a qualitative nature. In view of this, it was thought that an ecological survey based on quantitative methods might provide a better basis for classifying the vegetation of the area.
Accordingly, while being employed as an assistant in the Department of Plant Ecology of the University of Saskatchewan the author was given the opportunity, under the supervision of Dr. R.T. Coupland, to carry out investigations in those parts of the aspen grove region north and northwest of Saskatoon.
The author is considerably indebted to Dr. B.W. Currie of the Physics Department, for furnishing data on the climate of the area of research, and to Mr. H.C. Moss and his assistants, of the Saskachewan Soil Survey, who kindly undertook to examine and report on the soil samples which were collected in several of the sites studied. The author also wishes to express his gratitide to Mr. Jack F. Alex and Mr. W. Budz of the Department of Plant Ecology, who assisted greatly in both the field and laboratory work for this project. The financial assistance of the Saskatchewan Agricultural Research Foundation, which made this study possible, is also appreciated.
The author experienced a great deal of difficulty as a result of unfamiliarity with the topography, in particular with the vegetation of the plants, since he is more accustomed to the mountains and forests of British Columbia. Many problems of identifications were encountered in dealing with the wealth of species of grasses and composites, as well as problems of relationship between the communities found in certain locations and their topographical situation
Certificate of affiliation given to Building Trades Council of Springfield by the Missouri State Federation of Labor
No full textCertificate of affiliation given to Building Trades Council of Springfield by the Missouri State Federation of Labor, Springfield, Missouri. Legible names on the document include R.T. Wood and Grant Murphy
Certificate of affiliation given to International Brotherhood of Bookbinders by the Missouri State Federation of Labor
No full textCertificate of affiliation given to International Brotherhood of Bookbinders by the Missouri State Federation of Labor, local union #225, Springfield, Missouri. Legible names on the document include R.T. Wood and Grant Murphy
Certificate of affiliation given to Bakery and Confectionery Workers by the Missouri State Federation of Labor
No full textCertificate of affiliation given to Bakery and Confectionery Workers by the Missouri State Federation of Labor, local union #235, Springfield, Missouri. Legible names on the document include R.T. Wood and Grant Murphy
Multiple targeting signals are required for the sorting of a 22 kilodalton Arabidopsis integral membrane protein to peroxisomes
No full textThe targeting signals required to sort a 22 kilodalton 'Arabidopsis thaliana' integral peroxisomal membrane protein (PMP22) to peroxisomes was investigated. Tobacco cultured cells were transiently transformed with different versions of epitope-tagged PMP22 or PMP22-reporter protein chimeras, and the subcellular location of introduced proteins was determined using immunofluorescence microscopy. Time course experiment revealed that PMP22 sorts directly from its site of synthesis in the cytosol to peroxisomes and, unlike some other PMPs, not via the endoplasmic reticulum. Modified versions of PMP22 with specific amino acid substitutions revealed that at least five targeting signals exist within the protein and that they function together in efficient peroxisomal sorting. Chimeric proteins consisting of different portions of PMP22 revealed that at least one transmembrane domain (TMD) is required for peroxisomal sorting; however, the overall three dimensional structure of PMP22 is equally important for targeting signal(s) to function
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Preliminary Geologic Map of the North Half of the Union Pass Quadrangle, Mohave County, Arizona
No full textPreliminary Geologic Map of the North Half of the Union Pass Quadrangle, Mohave County, Arizona. Includes one map sheet with cross section at 1:24,000 map scale.On 1/17/2014, F.L. Hillemeyer's name was removed from the author list per his request. (The request was forwarded to AZGS by J.E. Faulds.)Documents in the AZGS Document Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact [email protected]
Iowa State College Journal of Science 39.4
No full textThe mammals of Winneshiek and Allamakee Counties, Iowa. Sherman A. Hoslett. 359
Productivity and turnover relationships in native tallgrass prairie. Melvin R. Koelling and C.L. Kucera. 387
Estimation of field working days in the spring from meteorological data. R.H. Shaw. 393
Combining biological data from European corn borer experiments over years.D.V. Sisson, T.A. Brindley and T.A. Bancroft. 403
Life history of smallmouth bass, Micropterus dolomieui Lacepede, in the Des Moines River, Boone County, Iowa. James B. Reynolds. 417
Residues of chlorinated hydrocarbon insecticides found corn plants treated for European corn borer control. Jack E. Fahey, R.T. Murphy and R.D. Jackson. 437
Resides of carbamate insecticides on corn plants treated for European corn borer control. R.D> Jackson, Jack E. Fahey, and R.T. Murphy. 449
Effect of two legume and two grass crop root systems on Pythium graminicolum disease-inciting potential of field soil. W.L. Staudinger and W. F. Buchholtz. 453</p
College of Pharmacy 1923
No full textCollege of Pharmacy 1923. V.J. Fitz-Simon, Ph. C., W.J. Nolan, PH. G. MD., D.W. Bell, PH. G. M.D., W.P. Whalen, S.J., Regent, J.F. McCormick, S.J. Pres., H.C. Newton, PH. G., Dean, John A. Creighton, H.F. Gerold, PH. C. M.D., F.J. Langdon, A.B. M.D., F.E. Marsh, PH. C., G.D. Schafer, M.L. Gavenman, H.E. Hanson, M.L. Bennett, C.A. Murphy, O. Thompson, R.T. Lindley, C.W. Geiter, R. O'Neill, R.E. Hirschman, W.D. Hads, W.K. Murphy, H.C. Nickolson, R.H. Fitzpatrick, E.B. knudsen, J.H. Baker, C.W. Carroll, A.L. Kargacin, L. Skorczewski, F.A. Lipinski, A. Jensen, F.J. Ourada, P.W. O'Hara, H. Recroft, M.P. Koch, W.E. Moore, D. Slobodisky, D.G. Leigh, J.P. Donova
Coordination in an Adaptive Traffic Signal Control System
No full textCoordination between the intersections is used in traffic signal control for quite a long time. The objective of this thesis is to determine how beneficial network coordination is in an adaptive traffic signal control system that follows the multi-agent approach. As part of the research: Simulation results show that coordination in a multi-agent controller can reduce average delay of the users on the network depending on the average demand. The best performing coordination measure is platooning cars on the main streams at the first intersection of the arterial. This provide time for the downstream intersections to serve side streams and ensured that the main stream is not stopped at the downstream intersections on the arterial. The tested coordination measures reduced delay with 10% compared to the original settings.Transport and PlanningTransport & PlanningCivil Engineering and Geoscience
The implementation of a system description language and its semantic functions
No full textElectrical Engineering, Mathematics and Computer Scienc
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