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Articles 49471 - 49500 of 52511
Full-Text Articles in Entire DC Network
An Intraseason Forecasting System For Commercial Marine Fisheries, Erik J. Barth
An Intraseason Forecasting System For Commercial Marine Fisheries, Erik J. Barth
OES Theses and Dissertations
The reliability of an intraseason yield estimation technique which is commonly used by Pacific salmon harvest managers is evaluated for applicability to a variety of commercial finfish and crustacean fisheries. The estimation technique is known as the average timing or the average performance model. The method is not easily related to standard statistical models, but does show some similarity to both a single parameter linear regression model and the ratio estimator of sampling theory. A comparison of these models, a two parameter linear model, and a regression estimator is made to determine if the precision of forecasts of performance can …
James Valley Agricultural Research And Extension Center Annual Progress Report, 1983, Agricultural Experiment Station, Plant Science Department
James Valley Agricultural Research And Extension Center Annual Progress Report, 1983, Agricultural Experiment Station, Plant Science Department
Agricultural Experiment Station and Research Farm Annual Reports
This is the 1983 progress report for the James Valley Agricultural Research and Extension Center. The reports in this document represent the research conducted at the Center during 1983. The report includes weather data, information on crop production, soil tillage, irrigation, soil reclamation, performance and variety test, herbicide performances and testing, and other experiments conducted at the Center in Redfield, South Dakota.
Ua66/8/2 Growing Season In Kentucky 1951-1980, Wku Climate Center, Glen Conner, Mark Simpson
Ua66/8/2 Growing Season In Kentucky 1951-1980, Wku Climate Center, Glen Conner, Mark Simpson
WKU Administration Documents
Kentucky Climate Center report number 26 Growing Season in Kentucky 1951-1980.
Dietary Maintenance Of Bioluminescence In A Deep-Sea Mysid, Tamara M. Frank, Edith A. Widder, Michael I. Latz, James F. Case
Dietary Maintenance Of Bioluminescence In A Deep-Sea Mysid, Tamara M. Frank, Edith A. Widder, Michael I. Latz, James F. Case
Marine & Environmental Sciences Faculty Articles
No abstract provided.
Skeletal Extension, Density And Calcification Of The Reef Coral, Montastrea Annularis: St. Croix, U.S. Virgin Islands, Richard E. Dodge, Garrett W. Brass
Skeletal Extension, Density And Calcification Of The Reef Coral, Montastrea Annularis: St. Croix, U.S. Virgin Islands, Richard E. Dodge, Garrett W. Brass
Marine & Environmental Sciences Faculty Articles
Parameters of the annual and subannual skeletal growth of 61 Montastrea annularis corals, collected at a variety of shallow depth sites on reefs of St. Croix, U.S. Virgin Islands, are determined by X-radiography and scanning densitometry for each year in the 10-year period, 1970–1979. Extension (linear growth) of the coral skeleton is correlated negatively with bulk density (mass per unit volume) and positively with calcification (mass addition). Density and mass are slightly positively correlated. No one parameter, however, is a perfect predictor of another. At least two parameters, from which the third can be calculated, are required for complete description …
The Prairie Naturalist Volume 16, No. 1. March 1984
The Prairie Naturalist Volume 16, No. 1. March 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
MORTALITY OF RACCOONS IN NORTH DAKOTA ▪ E. K. Fritzell and R. J. Greenwood
THE EFFECTS OF MOWING ON THE RODENT COMMUNITY OF A NATIVE TALL GRASS PRAIRIE IN EASTERN NEBRASKA ▪ C. A. Lemen and M. K. Clausen
PARASITES OF FISH FROM THE JAMES AND SHEYENNE RIVERS, JAMESTOWN RESERVOIR COMPLEX, AND LAKE ASHTABULA IN NORTH DAKOTA ▪ M. D. Forstie and H. L. Holloway
LEAD POISONING OF SANDHILL CRANES (Grus canadensis) ▪ R. M. Windingstad, S. M. Kerr, and …
Preoperative Chemotherapy And Irradiation In The Treatment Of Soft Tissue Sarcomas Of The Lower Extremities: Preliminary Report Of Experience At Henry Ford Hospital, S. David Nathanson
Preoperative Chemotherapy And Irradiation In The Treatment Of Soft Tissue Sarcomas Of The Lower Extremities: Preliminary Report Of Experience At Henry Ford Hospital, S. David Nathanson
Henry Ford Hospital Medical Journal
The development of effective chemotherapy and improved techniques of radiation therapy offer the possibility of managing soft tissue sarcomas so that surgery may need to be less radical than in the past and amputation can be avoided. The low rates of local-regional and systemic recurrence that have resulted from using innovative combinations of chemotherapy, radiation therapy, and conservative surgery encouraged us to use preoperative intraarterial adriamycin (doxorubicin) with or without radiation therapy for three cases of soft tissue sarcomas of the lower extremities. The rationale for this therapy is also discussed.
The Hsus Petitions U.S. Government To Protect Fur Seals
The Hsus Petitions U.S. Government To Protect Fur Seals
Close Up Reports
Our battle to end U.S. seal clubbing continues
Ard News February 1984
Agricultural Research Division: News and Annual Reports
CONTENTS:
RESEARCH GRANT OPPORTUNITIES
DIRECTOR'S OFFICE RESPONSIBILITIES
FACULTY DEVELOPMENT LEAVES
GOVERNOR'S BUDGET RECOMMENDATIONS
AGRICULTURAL RESEARCH BROCHURE
CHECK-OFF BOARD PROPOSALS
NEW MICROCOMPUTER SUPPORT STAFF
REALLOCATION UPDATE
CAMaC COMPREHENSIVE REVIEW
AGRICULTURE 2001 RECOMMENDATIONS
NEW EMPLOYEE
IANR GRANTS
PROJECT REVIEW ACCOMPLISHMENTS
RESEARCH GRANTS AND CONTRACTS RECEIVED
NEBRASKA AES RESEARCH EXPENDITURES
NEW OR REVISED PROJECTS
Las Vegas Wash Multispectral Scanner Survey, T. H. Mace, M. V. Olsen, Environmental Protection Agency
Las Vegas Wash Multispectral Scanner Survey, T. H. Mace, M. V. Olsen, Environmental Protection Agency
Publications (WR)
At the request of the U.S. Bureau of Reclamation, Boulder City, Nevada, the U.S. Environmental Protection Agency's Environmental Monitoring Systems Laboratory at Las Vegas collected multispectral scanner imagery of Las Vegas Wash on October 1, 1982. A combined maximum likelihood classification and editing procedure was used to classify the multispectral scanner imagery into 12 categories of land cover. The classification identified four categories of marsh vegetation, one category of riparian, two categories of mixed scrub, and two desert categories. Turbid water and cultivated land formed an "other" category. Area tabulations were formed by georeferencing the classification to the Universal Transverse …
Factors Affecting Nest Site Location In Gila Woodpeckers, Jerome J. Korol, Richard L. Hutto
Factors Affecting Nest Site Location In Gila Woodpeckers, Jerome J. Korol, Richard L. Hutto
Biological Sciences Faculty Publications
We investigated the locations of Gila Woodpecker (Melanerpes uropygialis) nest sites in Organ Pipe Cactus National Monument, Arizona. A significantly greater proportion of saguaro cacti in arroyos had woodpecker holes than did those on hillsides, ridgetops or desert flats. Saguaros used for nest-hole excavation were taller and more likely to have branches than randomly chosen saguaros. Both active and inactive nest holes were nonrandomly oriented, with the mean vectors of orientation being in northwesterly directions. Variation in nest-hole orientation probably is not due to seasonal differences in excavations because the orientation of spring active (late March) nest holes was not …
Some Plant Leaves Have Orientation-Dependent Epr And Nmr Spectra, Douglas C. Mccain, Ted C. Selig, Govindjee, John L. Markley
Some Plant Leaves Have Orientation-Dependent Epr And Nmr Spectra, Douglas C. Mccain, Ted C. Selig, Govindjee, John L. Markley
Faculty Publications
Proton nuclear magnetic resonance (1H NMR) spectra of leaves from 50 plant species were obtained at a spectrometer frequency of 470 MHz. Water present in leaf samples gives rise to characteristic spectral patterns. Most species show only one broad 1H NMR peak; however, the leaves of some plants display complex, orientation-dependent spectra in which a common three-line pattern is discerned. The pattern varies with the angle between the leaf surface and the external magnetic field. Proton relaxation measurements show the presence of at least two water compartments in the leaves. The compartments are responsible for different components …
Soil Science Research Report - 1984
Soil Science Research Report - 1984
Soil Science Research Reports
Soil Water and Water Related Studies
Effect of Irrigation on Salt and Sodium Content of Salt Affected Soils in Central Nebraska .......... Section 1
Physics of Water in Soils and Porous Media .......... Section 2
Objective Indices of Water Regimes for Comparison Purposes .......... Section 3
Water by Nutrient Interaction Studies
Effects of Oscillations in Water Levels on Nutrient Uptake .......... Section 4
Yield, Water Use, and Nutrient Uptake of Corn Hybrids Under Varied Irrigation and Nitrogen Regimes .......... Section 5
Effect of Sprinkler Irrigation Timing and Amount on Yield of Different Winter Wheat Varieties .......... Section 6
Fertilizer Experiments …
A Case For Heuristic Optimization Methods In Forestry, Steven H. Bullard, W. David Klemperer
A Case For Heuristic Optimization Methods In Forestry, Steven H. Bullard, W. David Klemperer
Faculty Publications
With rising competition for scarce resources, forest managers are increasingly concerned with estimating optimal solutions to complex problems. Heuristic procedures are often useful in solving such problems.
How Hamiltonian Dynamical Theory In The Complex Domain Yields Asymptotic Solutions To The Non-Hermitian Integral Equations Of Visual Nerve-Networks, Bruce Knight
Knight Laboratory
No abstract provided.
Interactive Image Processing For Electron Microscopy: Matching Hardware With Software, W. O. Saxton
Interactive Image Processing For Electron Microscopy: Matching Hardware With Software, W. O. Saxton
Scanning Electron Microscopy
The image processing techniques used 'a posteriori' to extract information from electron micrographs are surveyed, including particularly image averaging, selective averaging, 3-D reconstruction, and high resolution focal series restoration; recent developments in online image pick up and control have led to fully automatic focussing, stigmating and alignment by a frame store system equipped with a real time correlator board. The diversity of the techniques encountered calls for large integrated program systems with flexible command languages; however, a dilemma exists between providing the user with convenient control of special hardware facilities such as frame stores and array processors, and preventing the …
Ecological And Evolutionary Considerations Of Large Scale Mosquito Control Programs, Harrison B. Tordoff
Ecological And Evolutionary Considerations Of Large Scale Mosquito Control Programs, Harrison B. Tordoff
Journal of the Minnesota Academy of Science
No abstract provided.
Optics Of Wide Electron Beam Focusing, Zhou Li-Wei
Optics Of Wide Electron Beam Focusing, Zhou Li-Wei
Scanning Electron Microscopy
In the present paper, we have further studied an approach to the theoretical treatment of wide electron beam focusing, based on the application of the theory of focusing fields with arbitrary curved optical axis, considering the initial condition emitted from the cathode surface. It is assumed that the magnetic field vector B will be used instead of the magnetic scalar potential Ω and the electrostatic potential 𝞅 and the magnetic field vector B are known functions either by computation or experimentally in the laboratory system of coordinates. The new approach to the mathematical treatment appears to be a useful method …
Constrained Optimization Design Of An Electron Optical System, Chang-Xin Gu, Li-Ying Shan
Constrained Optimization Design Of An Electron Optical System, Chang-Xin Gu, Li-Ying Shan
Scanning Electron Microscopy
An electron optical system can be optimized using the "simplex method" or "complex method". By these methods, the final structure of an electron optical system, for example, an extended field lens (EFL), can be searched with a criterion of minimum objective parameter (in the present case, the coefficient of spherical aberration). Because there is no constraint in the simplex method, the constrained optimization method (the complex method) described in this paper is better than the simplex method in the design of electron optical systems. In the simplex method as well as the complex method, it is not necessary to know …
Fisheries Report No 66 - The Fishery For Perth Herring, Nematalosa Vlaminghi (Munro), C F. Chubb, N. G. Hall, R C.J. Lenanton, I. C. Potter
Fisheries Report No 66 - The Fishery For Perth Herring, Nematalosa Vlaminghi (Munro), C F. Chubb, N. G. Hall, R C.J. Lenanton, I. C. Potter
Fisheries Research Reports
Perth herring fishery over the last 30 years have been examined. While there are pockets of catches between Broome and Bunbury, those from the Swan Estuary and nearby inshore marine waters make by far the most important contribution to the fishery. In the Swan Estuary, the catches started rising in the 1950s in response to a demand by the rock lobster industry for bait and reached peak values in the late 1960s and early 1970s. Data are provided which demonstrate that catch per boat is a good index of catch per unit effort (CPUE) in the period since 1967 when …
Toward A Concise Definition And Perspective For Biology, Arthur V. Brown, Kristine Basinger Brown
Toward A Concise Definition And Perspective For Biology, Arthur V. Brown, Kristine Basinger Brown
Journal of the Arkansas Academy of Science
The content of introductory biology courses at the high school and college levels are currently being re-examined. Many biological educators favor revision of the high school biology courses to a format that directly addresses current social issues to "promote good citizenship". We believe it would be more meaningful to teach the fundamental principles of biology, the study of living systems. Properly defining biology, by defining a living system, should help identify important topics to include in a basic biology course. Emphasis should be placed on subjects which would contribute most to the development of a basic understanding of how all …
The Question Of Animal Awareness, Francoise Wemelsfelder
The Question Of Animal Awareness, Francoise Wemelsfelder
Sentience Collection
The problem of animal awareness lies at the interface of science and philosophy. As a starting point for the study of phenomena such as awareness, mind, consciousness, etc., we hardly have any reference other than our own human experience and in the context of a nondualistic ontology this can be justified. In philosophy and psychology it appears to be very difficult to give direct operational definitions of terms such as consciousness, etc. So we might expect this to be even more difficult in the study of animals. A detailed knowledge of animals and their behaviour is necessary in order to …
Advances In Animal Welfare Science 1984/85, M. W. Fox, L. D. Mickley
Advances In Animal Welfare Science 1984/85, M. W. Fox, L. D. Mickley
eBooks
This book, the first in an annual series, written by academicians--scientists, philosopher and other--is not intended exclusively for animal welfarists and conservationists. Since it is written by scholars, it will appeal to a wide range of academic and professional readers who are involved with animals for scientific, economic, altruistic, and other reasons. While this first volume cannot cover the entire spectrum of animal welfare science-related topics, it does, in its diversity of contributions, demonstrate the multi-faceted and interdisciplinary nature of the subject of this new series.
Fisheries Report No. 65 - The Amateur Fishery For Marron (Cherax Tenuimanus) In Western Australia - Summary Of Logbook Data 1971-83, N. Morrissy, C. Fellows, N. Caputi
Fisheries Report No. 65 - The Amateur Fishery For Marron (Cherax Tenuimanus) In Western Australia - Summary Of Logbook Data 1971-83, N. Morrissy, C. Fellows, N. Caputi
Fisheries Research Reports
The large, native crayfish called marron, Cherax tenuimanus, supports an extensive recreational fishery in the southwest of Western Australia. This report examines annual catch and effort statistics gathered from a Logbook programme, initiated in the 1971/72 season and supplemented by an end of season telephone survey from 1977. Logbook data gave estimates of relative abundance, but were too biased for projection to total catch and effort for the fishery, while telephone surveys gave unbiased estimates of total annual fishing effort (trips)l.
Relative abundance showed a significant decline in the major rivers and the most popular dam (Wellington) over the monitoring …
Fisheries Report No 60 - Amateur Net Fishing Survey Of Two Western Australian South Coast Estuaries In January 1981, D. I. Heald
Fisheries Report No 60 - Amateur Net Fishing Survey Of Two Western Australian South Coast Estuaries In January 1981, D. I. Heald
Fisheries Research Reports
Following the return of the administration of fishing activities in Wellstead estuary and Beaufort Inlet to the Western Australian Government in October 1980, a survey of the amateur net fishing in these two estuaries was undertaken in January 1987, The purpose of the survey was to document usage, species catches and size composition of fish caught in respect of mesh size used and the success rate of amateur net fishermen as compared to their expectation. At the time of the survey, Wellstead estuary had been closed to the sea for 13 months and Beaufort Inlet for 27 months and the …
Fisheries Report No 63 - Assessment Of Artificial Feeds For Battery Culture Of A Freshwater Crayfish, Marron (Cherax Tenuimanus) (Decapoda: Parastacidae), Dr N. Morrissy
Fisheries Research Reports
Performance of juvenile crayfish, 0.1-5 g, on a variety of commercial crustacean feeds was tested under conditions of individual housing ("battery culture"), where sources of additional feed were minimized (detritus), or eliminated (cannibalism) Survival was close, or equal, to 100% over 50 day test periods, a reflection of optimal battery conditions rather than feeding, since survival over 100 days for an unfed (control} group was also 100%. No ecdysiad mortality, or trauma, occurred with crayfish, up to 10g, in compartments of area 75 cm. Growth performance in tests was rated by separate ratios for ecdysial increment and frequency, relative to …
Fisheries Report No 64 - The Western Rock Lobster Fishery 1977 - 1978, R. S. Brown, E H. Barker
Fisheries Report No 64 - The Western Rock Lobster Fishery 1977 - 1978, R. S. Brown, E H. Barker
Fisheries Research Reports
The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably …
Fisheries Report No 67 - The Western Rock Lobster Fishery 1978 - 1979, R. S. Brown, E H. Barker
Fisheries Report No 67 - The Western Rock Lobster Fishery 1978 - 1979, R. S. Brown, E H. Barker
Fisheries Research Reports
The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced a record 11 388 tons in 1978/79, out of a total Australian catch of rock lobster of 15 400 tons. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and Hancock (1981) and which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of …
Soil Conservation Research In New South Wales And Its Significance To Research On Water Erosion In Western Australia, D J. Mcfarlane
Soil Conservation Research In New South Wales And Its Significance To Research On Water Erosion In Western Australia, D J. Mcfarlane
Resource management technical reports
No abstract provided.
Santa Clara Magazine, Volume 26 Number 3, Winter 1984, Santa Clara University
Santa Clara Magazine, Volume 26 Number 3, Winter 1984, Santa Clara University
Santa Clara Magazine
2 - DEAR MAMA Letters from a 1917 Freshman to his family provide a firsthand glimpse of life at Santa Clara during the early months of World War I.
9 - THE SUPREME COURT AND THE 1984 ELECTION by Russell W. Galloway. A court without liberals is a real possibility if President Reagan runs and wins in 1984.
12 - THE MACHINE AND THE WORKBENCH by William Byron S.J. Much of the direction of the American enterprise system will depend on which of these two guiding metaphors is selected.
14 - A VISIT TO THE MISSION GARDENS A new self-guided …