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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
401

The Effects of Policy Development and Organizational Structure on the Performance of Range Livestock Development Projects in Africa

Perrier, Gregory Karl 01 May 1991 (has links)
Range professionals are frequently involved in the arranagenent of range development projects, both dornesticalY and internationally. '!he success record of such projects has been uneven, particularly for projects in deveoloping nations. '!he objective of this study was to provide ~e specialists a better understanding of potential management obstacles and barriers to success. '!his is accomplished through an examination of the management of three AID-funded pastoral development proj ects in Africa: the Tanzanian Masai Livestock and Range Management Project, the Sanali Central Rangelarrls Development Project, and the ~tho Lard Conservation and Range Development Project. 'Ibe study examined the effects of two ilTIportant aspects of proj ect management, organizational structure and goal and strategy development, on project perfonnance. Firrlings indicated two major themes: project perfonnance is improved by actions that 1) increase flexibility and 2) result in appropriate strategies. Flexibility was increased by support from politically pcMerful institutions (e.g., pcMerful ministries, donors, etc.), ability to m:xlify internal stnlctures and external linkages to other organizations during implementation, ability to m:xlify strategy during implementation, devolution of operational decision-making to field levels, allowing field staff control over the resources needed to implement their activities, and participation in decision-making by pastoralists. Appropriate strategies are those having a high congruence with the interests of key actors (i. e., donors, national ministries, local administrators, pastoralists) , with pastoral household goals and extant production strategies, with the resources and capabilities locally available, and with inten1al structures and external linkages
402

Structural Geology of the Southern Part of Elkhorn Mountain, Bannock Range, Idaho

De Vries, George A. 01 May 1977 (has links)
The area of souther Elhorn Mountain, a previously unmapped area, is located north of Malad City, Idaho, in the Bannock Range. The mapped area is within the Basin and Range province. The mapped area measures 5.9 miles in the north-south direction and approximately 8.8 miles in the east-west direction. The oldest stratigraphic unit, in the mapped area, is the Ute Formation of Middle Cambrian age. Other units of Cambrian age, in ascending order, are: Blacksmith Formation, Bloomington Formation, Nounan Formation, and St. Charles Formation. The units of Ordovician age are the Garden City and the Swan Peak Formations. The youngest unit of Paleozoic age, in the mapped area, is the Fish Haven-Laketown Formation of Ordovician-Silurian age. The Paleozoic units are composed predominantly of limestone and dolomite; some unites contain varied amounts of quartzite and shale. The Salt Lake Formation and associated volcanic rocks of Tertiary age are present locally in the mapped area. Lake Bonnevill Group, colluvial deposits, and alluvial deposits, all of Quaternary age, are also present. A thrust fault, folds, and normal faults are present in the mapped area. A bedding-plane thrust fault is present between the Bloomington and Nounan Formations. A broad anticline is suggested by the attitudes of the Paleozoic rocks of southern Elkhorn Mountain. Small-scale folds are exposed locally. The normal faults are of two major trends, northwest and north. These fault sets are contemporaneous and they cut Salt Lake Formation. These sets intersect and form numerous fault blocks. The normal faults cut the thrust fault and the fold. Thus, the thrust fault and the fold are isolated within various fault blocks throughout the area. The marginal normal faults are responsible for the present topography. Remnant blocks of a major landslide are also present. The structural features of the area are the result of two major structural events, the older Laramide orogeny and the more recent Basin and Range faulting. The Laramide orogeny, active from Late Jurassic to early Eocene, was responsible for the thrust faulting and folding. The Basin and Range faulting, active from Oligocene to Holocene, was responsible for the normal faults and the landslide. Marginal normal faults are probably active at the present time. (101 pages)
403

Investigation of Factors Contributing to the Declining Range Sheep Industry in Utah

Boehme, Jerry W. 01 May 1975 (has links)
The purpose of this paper is to document the major reasons sheep producers are liquidating their business, and to provide some insight into the present use of land and labor resources taken out of sheep production, Data compiled for the study were obtained from personnel interviews of former sheep producers statistically selected from a master list of all producers who stopped sheep production from 1968 to June 1974. The general characteristics of Utah sheep ranches were presented followed by an analysis of producers who, and the reasons why, they sold their herds, The last section of the report documents the present use of resources taken out of sheep production.
404

Home Range (?) of the Flat-tailed Horned Lizard Phrynosoma mcallii

Miller, Peggy Anderson 01 May 1999 (has links)
Area used by male and female Phrynosoma mcallii (Hallowell) was studied in a population locted on the Barry M. Goldwater Aerial Gunnery Range near Yuma, Arizona. Area used by males and females shifted through time and did not fit the definition of home range. Summer male and female area used was not significantly different (F=2.625, df=1, P=0.131), but male areas used were significantly larger for 15-day time periods (F=9.67, P=0.0003). Males overlapped the area they occupied in consecutive 15-day time periods more often than did females. Female area used never overlapped within a 15-day time period. Male area used overlapped those of other males and females within a 15-day time period.
405

Geology of the Sharp Mountain Area, Southern Part of the Bear River Range, Utah

Hafen, Preston L. 01 May 1961 (has links)
The Sharp Mountain area is situated in the southern part of the Bear River Range in Utah. The geology of the Bear River Range to the north of this area, in Utah and Idaho, has been mapped; however, prior to this study little was known about the Sharp Mountain area. The purpose of this investigation are as follows: (1) to map and describe the geology of the area, and (2) to relate the stratigraphic and structural features of the Sharp Mountain area to those of the surrounding region.
406

Livestock Foraging Behavior in Response to Interactions among Alkaloids, Tannins, and Saponins

Lyman, Tiffanny 01 May 2008 (has links)
Plant secondary compounds abound in every plant mother nature has to offer. From common garden vegetables to poisonous plants, there are secondary compounds in every plant any animal, as well as we, chooses to eat. In the past, secondary compounds were mostly considered waste products of plant metabolism, but over the last several decades research has shown that these compounds play an active role in plant and animal behavior, health, and productivity. Though often seen only in terms of their negative impacts on intake and production, we are becoming increasingly aware of their beneficial roles in plant, animal, and human health. Providing herbivores with a diversity of plants to make up their diet allows them to regulate and mix foods so as to better utilize primary and secondary compounds, as well as enhancing economic and ecological performance. The secondary compound gramine is an alkaloid found in reed canarygrass that is proteinaceous in nature. Endophyte-infected tall fescue contains the alkaloids perlolidine, perloline and ergotamine, which are all steroidal in nature. Tannins have a high affinity for binding proteins, and saponins are non-polar steroidal compounds with a high affinity for binding to lipids in the gastro-intestinal tract of animals. These findings suggest that animals ingesting foods with alkaloids may increase their preference for tannin or saponin-containing foods to reduce the negative impacts of these secondary compounds. Moreover, tannins and saponins hasten alkaloid excretion from the body, which might also allow animals to eat more high-alkaloid forages when presented with tannins first. I tested the hypothesis that cattle and sheep foraging behavior is influenced by eating different combinations and sequences of forages containing secondary compounds. In pen and pasture trials, I showed that 1) sheep fed basal diets high in alkaloids (gramine or ergotamine) ate more when supplemented with food containing either tannins or saponins ; 2) cattle that ate a 30-minute meal of tall fescue(alkaloid) subsequently preferred birdsfoot trefoil(tannin) to alfalfa (saponin), while cattle that first ate reed canarygrass(alkaloid) subsequently preferred alfalfa(saponin) to birdsfoot trefoil (tannin) ; and 3) cattle spent more time grazing tall fescue and reed canarygrass when they first ate birdsfoot trefoil (high in tannins) and alfalfa (high in saponins), respectively, than when they ate these forages in the reverse sequence.
407

Geology of the Monte Cristo Area, Bear River Range, Utah

Smith, Robert B. 01 May 1965 (has links)
The Monte Cristo area is a 7 1/2-minute quadrangle located in the southeastern. part of the Bear River Range, northern Utah. It is within the Middle Rocky Mountain province and is 10 miles east of the Basin and Range province. Previous to this investigation little was known about the detailed geology of the area except for a reconnaissance study and general geologic map of the Cache County part included in the Geologic Atlas of Utah, Cache County, published by Williams (1958). The purposes of this investigation were as follows: (1) to determine the formations present in the area and their relation to regional stratigraphy, (2) to determine the structure of the area and its relation to regional.structure, and (3). to produce a geologic map of the area (Plate 1).
408

Range limitations and phylogeography of stream salamanders in Quebec and Labrador

Markle, Tricia M. January 2006 (has links)
No description available.
409

Factors that influence the estimation of three-dimensional gleno-humeral joint repositioning error in asymptomatic healthy subjects

Monie, Aubrey January 2008 (has links)
Joint Position Sense (JPS) of the shoulder as determined by repeated repositioning tasks has been performed under different constrained testing conditions. The variability in the testing protocols for JPS testing of the gleno-humeral joint may incorporate different movement patterns, numbers of trials used to derived a specific JPS variable and range of motion. All of these aspects may play an important role in the assessment of G-H JPS testing. When using a new instrument for assessing JPS all of these issues need to be examined to document the optimal testing protocols for subsequent clinical assessments. By undertaking these studies future clinical trials may be more optimally assessed to determine if there are differences between dominant and non-dominant arms as well as the presence of JPS changes in performance associated with pathology and rehabilitation. This study used a 3-dimensional tracking system to examined gleno-humeral JPS using 2 open kinetic chain movement patterns. The 'conventional' 90 degree abducted, externally rotated movement was compared to the hypothetically more functional D2 movement pattern used in proprioceptive neuromuscular facilitatory techniques. These two patterns were tested at different ranges (low and high). Two cohorts (n=12, n=16) of normal healthy athletic males aged 17-35 years, performed matching tasks of both left and right arms. The second cohort (n=16) were assessed with and without strapping the gleno-humeral joint with sports tape. Accuracy (overall bias) and precision (variability) scores were determined for progressively greater numbers of trials. The findings of the study show that estimates of JPS accuracy and precision become more stable from data derived from 5 to 6 matching trials. There were no statistical differences between sides [95%CI ± 1.5cm]. The accuracy but not precision improved as subjects approximated the 'high' end of range in the 'conventional' or D2 pattern. Furthermore, no systematic differences were detected at different ranges of movement or movement patterns with or without the application of sports tape. These findings provide a guide to the number of trials that optimise the testing of the gleno-humeral joint and also suggest that in normal controls the magnitude of differences between sides and movement patterns is similar. These findings also iii indicate that sports tape applied to the shoulder may not significantly change the JPS performance in healthy, athletic males.
410

Long-Range Dependence of Markov Processes

Carpio, Kristine Joy Espiritu, kjecarpio@lycos.com January 2006 (has links)
Long-range dependence in discrete and continuous time Markov chains over a countable state space is defined via embedded renewal processes brought about by visits to a fixed state. In the discrete time chain, solidarity properties are obtained and long-range dependence of functionals are examined. On the other hand, the study of LRD of continuous time chains is defined via the number of visits in a given time interval. Long-range dependence of Markov chains over a non-countable state space is also carried out through positive Harris chains. Embedded renewal processes in these chains exist via visits to sets of states called proper atoms. Examples of these chains are presented, with particular attention given to long-range dependent Markov chains in single-server queues, namely, the waiting times of GI/G/1 queues and queue lengths at departure epochs in M/G/1 queues. The presence of long-range dependence in these processes is dependent on the moment index of the lifetime distribution of the service times. The Hurst indexes are obtained under certain conditions on the distribution function of the service times and the structure of the correlations. These processes of waiting times and queue sizes are also examined in a range of M/P/2 queues via simulation (here, P denotes a Pareto distribution).

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