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1
Hoekzema, Abbey. "Into the Canyons." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc500188/.
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Into the Canyons is a documentary short that provides an intimate portrait of two volunteer Wilderness Rangers working and living in Zion National Park in Utah for a summer. Sarah dreams of being a Park Ranger for the National Park Service, but must wait till she earns US citizenship. Working in an office, Allen wants a change in lifestyle. Together they explore the Wilderness and learn what it means to be a Park Ranger.
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Maciha, Mark Joseph. "The practice of leadership| A survey of National Park Service chief park rangers." Thesis, Northern Arizona University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3621122.
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<p> The role of the national park ranger is to protect, conserve, and to provide for the enjoyment of our nation's heritage. Unfortunately, today's rangers are challenged with problems in the organizational leadership of the National Park Service. The agency is currently ranked in the bottom third of federal agencies in workplace health and leadership. </p><p> As some of the most visible leaders in the National Park Service, chief park rangers were queried through a descriptive qualitative design. The open-ended survey instrument was designed to answer the following two research questions: "Assuming that formal training in leadership influences successful leadership practice, what are the perceived results and outcomes of this training?" and "What are the factors, other than training, that influence an individual's desired practice of leadership?" A total of 29 chief park rangers of an eligible 51 chief park rangers in the Intermountain Region of the National Park Service responded to the survey conducted in January 2014. Their responses were categorized as to (a) the impact of the agency's training efforts on chief park rangers; (b) the barriers to the practice of leadership as experienced by chief park rangers; and (c) considerations for improvement in the leadership of the National Park Service. </p><p> The research concluded that training, although perceived to be limited in availability, was beneficial. However, training absent experience negatively influenced leadership practice. The predominant barriers to the desired practice of leadership were the lack of training, unfavorable organizational culture, and burdensome administrative practices. Although the survey was designed to focus on the issues of empowerment, fairness, senior leadership, and direct supervision, the respondents indicated that the barriers mentioned above were of primary concern rather than problems with these specific issues. The research suggested that the efforts of the National Park Service need to focus on enhancing leadership training program management and on initiating comprehensive reform of leadership practices to include active leadership development, enhanced accountability at all levels, and specific messaging from senior management. </p>
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Smith, Diane Marie. ""What one knows one loves best" : a brief administrative history of science education in the national parks, 1916-1925." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/smith/SmithD1204.pdf.
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McNaughton, Alaina Christine. "More Than Road Trips and Rangers in Flat Hats: Recognizing Millennial Perceptions of the National Park Service to Effectively Engage the Next Generation of Park Stewards." Master's thesis, Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/439295.
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History<br>M.A.<br>Despite popular perceptions that the National Park Service (NPS) is first and foremost the steward of spectacular natural vistas, two-thirds of the system’s nearly four hundred parks exist explicitly to protect and interpret cultural and historic resources. It is this perception that the NPS only cares for Western natural wonders that impedes the agency, especially as it looks to the future. If the National Park Service is looking to cultivate the next generation of stewards, as employees, visitors, or advocates, it must understand how this diverse audience perceives the NPS. This thesis argues that this next generation of millennials perceives the National Park Service as a purveyor of natural wonders in the Western United States, road trip destinations. While the NPS is far from only “Western nature parks,” this popular perception permeates the next generation of park stewards. With this in mind, this thesis argues that the National Park Service must actively prioritize this next generation by defining who they are, recognize their perceptions and needs from the NPS, and understand how to best engage them in all aspects of natural and cultural resources. The NPS has a long history of youth engagement and outreach, in both natural and cultural resources, illustrating its importance to the agency. Looking to the future, it is imperative that the NPS supports youth engagement and outreach in a more productive and inclusive way.<br>Temple University--Theses
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Larzon, Alexander. "Social fotboll : En kvalitativ undersökning för att kartlägga skillnader i hur svenska respektive engelska fotbollslag kommunicerar på Facebook." Thesis, Umeå universitet, Institutionen för kultur- och medievetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-68678.
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Facebook is today a phenomenon that has connected the whole world. With millions of users this has become an attractive place for soccer clubs to connect with their fans. But in what ways are they using Facebook as a tool to connect with their fans?This essay aims to answer the question if it’s a difference in the way English and Swedish teams communicate with their fans on Facebook. The study was conducted with the use of telephone- and mail interviews. Too analyze the material the main theories I´ve used was public relations theory and the public sphere.The result of this study shows that it´s a difference in the way the Premier league teams Arsenal and Queens Park Rangers communicate in comparison with the Swedish teams Helsingborgs IF and IF Elfsborg. The Swedish teams are looking to create relationships by a two-way communication with their fans while the English teams are looking to create relationships with their fans thru pictures, interviews etc. Arsenal is also unique in this study by using Facebook as a tool for commercial purposes.
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Tyman, Shannon K. "Gunpowder Park : a case study of post-industrial reinhabitation /." Connect to title online (Scholars' Bank), 2008. http://hdl.handle.net/1794/8086.
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Stoll, J. A. E. "Mining in national parks : a case study : an integrated environmental evaluation of possible magnesite mining in Weetootla Gorge within the Gammon Ranges National Park, South Australia /." Title page, abstract and contents only, 1989. http://web4.library.adelaide.edu.au/theses/09ENV/09envs875.pdf.
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Milne, Josephine, and mikewood@deakin edu au. "Studies of the biology of four species of Dicranoloma." Deakin University, 1997. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050902.113817.
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Populations of Dicranoloma billardierei (Brid) Par., D. dicarpum (Nees.) Par., D. menziesii (Tayl.) Par. and D. platycaulon (C. Muell) Dix, from two pockets of cool temperate rainforest within the Yarra Ranges National Park (Cement Creek and Myrtle Loop), were sampled for a period of two years to establish their reproductive biology. The population dynamics within quadrats of D. billardierei, D. menziesii and D. platycaulon at Cement Creek also was investigated over a two year period, through the seasonal recording of shoot loss and/or gain,
The four species of Dicranoloma were dioicous and sexually dimorphic, with dwarf males epiphytic on the female plants. Antheridia were initiated before archegonia and required ca, 6 months to reach maturity, compared with 1 to 2 months for archegonia. More archegonia than antheridia occurred per inflorescence and were more variable Fertilization occurred during winter in D. billardierei and summer/ autumn in D. menziesii and D. platycaulon. The duration of the sporophyte cycle of D. menziesii was 12 months, shorter than that of D. billardierei and D. platycaulon which lasted for a period of 18 months to 2 years. In the latter two species an overlap of sporophyte generations occurred. This was particularly pronounced in D. billardierei as sporophytes remained in the swollen venter maturation stage for a period of 6 months. The duration of the sporophyte cycle could not be ascertained as few fruiting stems of D. dicarpum were found.
All four species of Dicranoloma regenerated from fragments cultured in the laboratory, and only two of the species showed evidence of production of asexual propagules in the field. Dicranoloma dicarpum was found to produce gemmae, an observation which had not been recorded before, and most of the leaves on stems of D. platycaulon had detached subulas.
Shoot loss was minimal in all four species, and when it did occur, (eg D. billardierei) it was attributed to disturbance by animals. Within quadrats there was an increase in shoot density which resulted from the development of innovation(s) and/or side branches rather than from the recruitment of new plants from spores or the regeneration of asexual propagules.
The four species of Dicranoloma investigated were robust, perennial mosses and formed an important component of the bryophytes found within the study area. Dicranoloma menziesii was the predominant species establishing on a variety of substrata, particularly as an epiphyte on Nothofagus cunninghamii The other species were more selective in their choice of substratum. Dicranoloma platycaulon was found exclusively on the trunks of myrtle beech and D. billardierei on fallen logs and exposed roots. Dicranoloma dicarpum which was not common, grew as an epiphyte on myrtle beech and on rocks.
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Klein, Gabriela 1963. "Geology of the northern park ranges and Porcupine Creek Anticlinorium, British Columbia." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60050.
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The northern Park Ranges are underlain by middle and upper Miette Group (+/$-$ 2800 m thick), Gog Group (700 to 1200 m thick) and unnamed Middle Cambrian(?) ($>$1000 m thick) strata.<br>The regional structure is dominated by the southeast-plunging Porcupine Creek Anticlinorium (PCA). The core of the PCA is characterized by large-scale upright folds broken by thrust faults. The west flank of the PCA and the adjacent Baker syncline (BS) are deformed by steeply southwest-dipping post-metamorphic thrust faults and Eocene (?) normal faults. The Precambrian Hugh Allan Gneiss is faulted against the west flank of the PCA by a post-metamorphic thrust, the Hugh Allan thrust. The Hugh Allan thrust has been correlated with the Purcell thrust of southern British Columbia.<br>Metamorphic grade increases from greenschist in the east to lower amphibolite in the west adjacent to the Hugh Allan (Purcell) thrust.
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Craven, Alice. "Bush Level Bureaucrats - National Parks Rangers’ Use of Discretion in Implementing Wild Dog Policy." Thesis, Department of Government and International Relations, 2011. http://hdl.handle.net/2123/8264.
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Wild Dog policy in New South Wales is controversial. There is a clear conflict between wild dog control methods as specified by the policy, and the need to conserve the rapidly diminishing numbers of dingoes in Australian ecosystems. Through an analysis of the types of discretion that National Parks rangers use in their implementation of Wild Dog Policy, this thesis will analyse the way in which discretion can be used as a means of resolving conflict in controversial policy areas. An initial understanding of the background to the complex issue of wild dog management, and the legislation and policies surrounding wild dog control provides substance to theories of discretion. These theories have been applied to the interview data of nine National Parks rangers, and an analysis of their experiences in implementing the controversial policy issue. Fundamentally this thesis finds that the different 'types' of discretion allow rangers to resolve conflict and implement a difficult policy area effectively.
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Bowden, Timothy Scott. "Mexican Spotted Owl reproduction, home range, and habitat associations in Grand Canyon National Park." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/bowden/BowdenT0508.pdf.
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Mexican spotted owls (Strix occidentalis lucida) are nocturnal avian predators that are widely distributed in the southwest U.S. and northern Mexico. In 1993, the lucida subspecies was listed as threatened in response to concern over the loss of forest habitats to which the owl is widely associated. However, in the northwestern corner of their range spotted owls primarily inhabit steep-walled rocky canyons. Owl populations inhabiting this region have received less attention than populations using forests, although, canyon populations are important to the persistence of the subspecies, and are subject to different environmental pressures. I investigated the breeding ecology and home range characteristics of Mexican spotted owls within Grand Canyon which supports both forest and rocky canyon habitat. During the study from 2004 - 2006, female fecundity (mean = 0.86), calculated as the number of female fledglings per paired female, was relatively high compared to values reported previously for Mexican spotted owls. Five adult male owls were radio-tracked during the breeding season. I used minimum convex polygons and fixed kernel estimates to describe home range size (mean = 356 ha and 372 ha, respectively) and generated adaptive kernels to describe areas of concentrated use within home ranges. I used GIS to describe vegetation and geology cover types associated with owl use areas. This information was used to determine if spotted owls used landscape cover types disproportionately to their availability. At a landscape level, spotted owl telemetry locations were positively correlated with piñyon-juniper vegetation that occurred within canyons as well as with the Redwall and Muav geologic layers (p <or equal to 0.05). Home ranges were located toward the heads of tributary canyons and spotted owls were rarely observed above the rim on forested plateaus. To identify nest core areas that might aid in the species conservation I delineated 40 ha "protected core areas" around spotted owl nest sites and show that these conservation zones correlated closely to areas of concentrated use I identified using an adaptive kernel (30% isopleth) home range analysis.
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Coventry, Ben. "Woody debris and the effect on the predicted probability of lizard capture in Arcoona Creek, Gammon Ranges National Park, South Australia /." Title page, abstract and table of contents only, 1998. http://web4.library.adelaide.edu.au/theses/09AEVH/09aevhc873.pdf.
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Baril, Lisa Marie. "Change in deciduous woody vegetation, implications of increased willow (Salix spp.) growth for bird species diversity, and willow species composition in and around Yellowstone National Park's Northern range." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/baril/BarilL1209.pdf.
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Deciduous woody vegetation (DWV) in Yellowstone's northern range is a rare, but important habitat type. Including willow, alder, aspen, and cottonwood, DWV was limited in height and areal extent since the early 1900s. Since the mid-1990s; however, DWV has increased in height and areal extent in some locations. Previous studies regarding DWV change have focused on quantifying change in vegetation growth in areas of limited extent and none have quantified increased DWV growth at the scale of the landscape. Furthermore, no studies have evaluated the implications for increased growth of DWV for wildlife in the region or how DWV species themselves may influence rates of growth. In this thesis I evaluate change in DWV within wetland and riparian areas using aerial photographs from 1991 and 2006. I also investigate how an increase in willow, the dominant component of DWV in the region, has likely influenced bird diversity. Finally, since willow species vary with respect to genetic limitations on growth and reproduction that in turn may influence observed patterns of growth; I examine willow species composition across the northern range. Results of the air photo interpretation revealed a 170% increase in DWV. Most plots that increased did so by recruitment rather than densification; however, DWV was difficult to detect below 100 cm indicating that the number of plots increasing by recruitment may have been overestimated. Bird community variables were examined in three willow growth conditions: height suppressed, recently released, and previously tall (tall prior to observed increase in growth). I found that willow structure generally increased in complexity from structurally simple height suppressed willows to structurally complex previously tall willows and that this allowed for greater bird richness, abundance, diversity, and the abundance of several willow dependent bird species. I also found that willow species composition was similar and diverse between the released and previously tall condition, but that the suppressed condition was dominated by a singe species. I conclude that increased DWV has allowed for greater bird diversity in the northern range and that increased willow growth in the suppressed condition may be influenced by species composition there.
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Leandro, Rafael Voigt. "Alberto Rangel e seu projeto literário para a Amazônia." reponame:Repositório Institucional da UnB, 2011. http://repositorio.unb.br/handle/10482/10174.
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Dissertação (mestrado)—Universidade de Brasília, Instituto de Letras, Programa de Pós-Graduação em Linguística, 2011.<br>Submitted by Alaíde Gonçalves dos Santos (alaide@unb.br) on 2012-03-29T14:23:07Z
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2011_RafaelVoigtLeandro.pdf: 944945 bytes, checksum: 16701b8a3e31f55a95716d3ee44cf27e (MD5)<br>Neste trabalho, estudamos o projeto literário amazônico de Alberto Rangel por meio da leitura dos contos de Inferno Verde (1908) e Sombras n’água (1913). Há várias evidências de que esse projeto possui consonância com aquele delineado por Euclides da Cunha em sua experiência na Amazônia, a respeito do qual se referiu como sua segunda obra vingadora depois de Os Sertões. Diante disso, realizamos uma breve retrospectiva da história da literatura amazônica, para compreender de que maneira Euclides e Rangel dialogam com essa dimensão da cultura nacional. Na sequência, analisamos o plano estético-literário do trabalho de Euclides como forma de comparar e extrair características estilísticas da literatura amazônica de Alberto Rangel, que alia também arte e ciência, binômio da literatura positivista. Por fim, procedemos a uma leitura hermenêutica das narrativas de Inferno Verde e Sombras n’água, indicando os diferentes matizes do projeto literário de Rangel. _______________________________________________________________________________________ ABSTRACT<br>In this dissertation, we study the Amazon literary project of Alberto Rangel through reading tales of Inferno Verde (1908) and Sombras n’água (1913). There are a lot of evidences that this project has a line with the project outlined by Euclides da Cunha after his experience in Brazilian Amazon, about which he has referred to as his second vindictive book after Os Sertões. Therefore, we make a brief retrospective of the history of Amazon literature to understand how Euclides and Rangel are connected to this dimension of Brazilian culture. Besides, we analyze the aesthetic-literary Euclides' work as a way to compare and extract stylistic features of Alberto Rangel’s Amazon literature, which combines art and science, the binomial of positivist literature. Finally, we perform a hermeneutic reading of the narratives of Inferno Verde and Sombras n’água to indicate the different aspects of literary project of Rangel.
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Favier, Diane. "Ecotourism--ideal and reality : a study of guided nature-based tourism in the Flinders Ranges National Park /." Title page, table of contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09ENV/09envf274.pdf.
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McAndrews, Thomas J. III. "ENHANCED FLIGHT TERMINATION SYSTEM PROGRAM - PART TWO." International Foundation for Telemetering, 2002. http://hdl.handle.net/10150/607523.
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International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California<br>The Air Force Flight Test Center in association with the Range Commanders Council (RCC) Range Safety Group is conducting a program that will explore the next generation of ground-based flight termination technology, known as the Enhanced Flight Termination System (EFTS) program. The first part of the program was successfully concluded in May 2002. The Government is leading this program with support from contractors, academia, and other RCC groups including the Telemetry Group, Frequency Management Group, and Telecommunications and Timing Group. Additionally, the National Security Agency is providing key support along with vendors who design, build and test range safety systems. This paper will discuss details of the design validation and development phases (part two) of the EFTS program. Redesign of flight termination receivers and ground system modification plans will be discussed as well as flight and ground hardware testing objectives.
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Kralovec, Mary L. "Movements and home range size of bald eagles from Glacier Bay National Park and Preserve, Alaska: with an analysis of satellite telemetry." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/43433.
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<p>During 1991-1993, I studied movements of 23 adult and 7, 8-10 week old nestling bald
eagles captured in Glacier Bay National Park and Preserve, Alaska. I estimated locations by
homing and satellite telemetry. During the breeding season, the distances adult eagles moved
from successful, unsuccessful, and mixed-success nests were not significantly different (£ =
0.148). Regardless of nest success, the proportion of adult eagle locations within 750 m of
their nest were not significantly different during the breeding season (£ = 0.152) and between
the breeding and non-breeding seasons (£ = 0.075). On average, bald eagles were perched
91 % of the time; and perching was the most frequently observed activity (£ < 0.001). Adult
eagles perched more often in conifers than cottonwoods, snags, or intertidal debris (£ <
0.001). Perch types selected (£ = 0.473), as well as eagle activity (£ = 0.126) were not
significantly different during the breeding and non-breeding seasons. Fifty-eight percent of
radio-ma~ked adult eagles used 3 watersheds in Glacier Bay from August through January
1991-1993. Six adult (26%) and 6 (86%) fledgling eagles moved out of Glacier Bay during
the non-breeding season. Four adult eagles (17%) traveled to the Chilkat Bald Eagle Preserve
in late November and December (mean distance from nest to preserve = 74 km) and 57% of
the fledgling eagles were on the Chilkat River in October, where they remained for 2-12 weeks. After leaving the Chilkat River, all fledgling eagles traveled in a southeasterly
direction; one male fledgling traveled 435 km in 28 days to Prince Rupert, British Columbia.</p><br>Master of Science
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Hamilton, Bryan T. "Small Mammal Diversity, Rattlesnake Demographics, and Resource Utilization in the Great Basin: Implications for Management and Stable Isotope Proxies." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6786.
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Plant carbon isotopes were used to track assimilation of riparian resources by small mammals. Voles and shrews derived significant portions of their carbon from riparian vegetation. Deer and harvest mice were abundant in riparian habitat but assimilated little riparian vegetation indicating that the riparian corridor provided resources other than food. This is first use of stable carbon isotopes to trace riparian resources into a vertebrate community. Conifer encroachment in sagebrush ecosystems negatively affects many wildlife populations. Conifer removal is recommended across millions of hectares in the Great Basin. However the effects of conifer encroachment and conifer removal are unknown for most wildlife species. We show that the consequences of conifer encroachment, a press impact, far outweigh the pulse impact of sagebrush restoration, on small mammal diversity. Lack of demographic data limit the development of effective management, conservation and recovery goals for rattlesnakes. We used a long-term dataset and capture mark recapture models to quantify demography of four rattlesnake populations. Mean population growth indicated an overall stable population across the study, with two of the four sites declining. Survival overwhelmingly contributed to population growth relative to recruitment. No small mammals drank stream water even during periods of environmentally high water stress and high aridity, extension of the linear regression equation for small mammal body water towards the meteoric waterline, captures stream water, the weighted mean average for regional meteoric waters. Similar regression of fossilized small mammal tissues would also capture local meteoric waters. Even in arid regions, small mammal fossils are a suitable proxy for climate reconstructions. In the Great Basin, snowmelt overwhelmingly contributes to local precipitation, plant production, and stream flows. Snowmelt supports riparian and upland plants, and small mammals. Rattlesnakes prey primarily on small mammals, indirectly depending on snow melt for survival and reproduction. Climate models and rattlesnake emergence strongly indicate an earlier onset of spring and reduced ratio of snow to rain. Declining snowpack will have major impacts on biodiversity and management such as riparian vegetation, native plant restoration, trophic interactions, and ecological goods and services.
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Harrington, Jason E. M. "Sequence stratigraphy and sedimentology of Uppermost Southesk and Sassenach formations (Upper Devonian), Boule and Bosche ranges, Jasper National Park." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0002/MQ44180.pdf.
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Harrington, Jason E. M. "Sequence stratigraphy and sedimentology of uppermost Southesk and Sassenach formations (Upper Denovian), Boule and Bosche Ranges, Jasper National Park." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20570.
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Devonian Winterburn strata in the Boule and Bosche Ranges of eastern Jasper National Park consist of two unconformity bounded, 45 m thick carbonate dominated depositional sequences, the Arcs Member (Nisku) and the Ronde Member (Calmar/Blue Ridge). Earliest Famennian clastics of the Sassenach Formation directly overlie the Ronde and this contact forms the Frasnian/Famennian boundary. Sampling for conodont biostratigraphy in three sections indicates that the Arcs and Ronde are Upper rhenana in age.<br>Arcs, Ronde, and Sassenach strata were deposited on a gently sloping carbonate ramp to platform ranging from shallow subtidal to peritidal depositional environments. Argillaceous limestones and shales are the dominate lithotype of the Mount Hawk Formation. Shallow subtidal limestones consisting of floatstones and rudstones interbedded with packstones and wackestones comprise most of the Arcs Member. Arcs strata consist of at least 4 depositional cycles and represent a shallowing upward sequence from outer shallow slope fossiliferous limestones to back reef lagoonal grainstones. Two previously undocumented Arcs patch reefs were described, the limestone Brule reef or bank in the southern Boule Range and the dolomitized Moosehorn reef in the central region of the Bosche Range. The Ronde Member is comprised of shallow subtidal limestones and siltstones with intertidal silty limestones occurring less frequently and predominately at the top. The Ronde consists of two carbonate shallowing upward cycles. FA 6 A intertidal limestones and fine grained sandstones comprise the Sassenach Formation which consists of two main depositional cycles and ranges from 20 m thick in the Bosche Range to less than 5 m thick in the Boule Range. (Abstract shortened by UMI.)
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Bellu, Annalisa. "Phytosociology applied to wildlife management - a study on the potentiality for the reintroduction of cervids in the Montemuro-Freita-Arada mountain range." Doctoral thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5215.
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Doutoramento em Engenharia Florestal e dos Recursos Naturais - Instituto Superior de Agronomia<br>The aim of the present thesis was to assess the use of phytosociology in wildlife management.
In Section II, as a case study, I investigated red deer (Cervus elaphus hispanicus) and roe deer
(Capreolus capreolus) free ranging populations occurring in the Natural Park of Montesinho,
northeast Portugal, using faecal-pellet counts to assess deer use of semi-natural meadows
(lameiros) and forest communities. Phytosociological classification contributed to explain red
deer spring selective use of meadows at finer scales and performed better than other
clustering criteria for classifying vegetation patches. At the landscape level, composition of
the neighbouring vegetation mosaic, topography, and meadow’s characteristics, as
management status and dominant phytosociology, produced the best models for deer seasonal
use of meadows. The forest use analysis revealed red and roe deer preference for oak forests
over pine plantations, and habitat use overlapping between red and roe deer all year round.
In Section III, I extrapolated the information gathered in Section II on deer use to build, for
the Montemuro-Freita-Arada massif, a predictive map for roe deer use of meadows, showing a
generally low use, with exception of isolated meadows closer to oak forest patches
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Rougvie, James Russell. "Metamorphism in the northern Park Range of Colorado : fluid-rock interactions and thermobarometry /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.
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Macedo, Cristiane Rufino de [UNIFESP]. "Placas oclusais para tratamento do bruxismo do sono: revisão sistemática Cochrane." Universidade Federal de São Paulo (UNIFESP), 2007. http://repositorio.unifesp.br/handle/11600/23410.
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Previous issue date: 2007<br>Contexto: Bruxismo do sono é uma atividade do sistema estomatognático caracterizada pelo ranger ou apertamento dos dentes durante o sono. Vários tratamentos para o bruxismo do sono têm sido propostos, entre eles o farmacológico, o psicológico e odontológico.
Objetivo: Avaliar a efetividade das placas oclusais para o tratamento do
bruxismo do sono comparada às intervenções alternativas ou ao não tratamento. Estratégia de pesquisa: Nós procuramos ensaios clínicos controlados randomizados (ECCRs) ou quasi-randomizados sobre tratamento de bruxismo nas seguintes bases de dados: COCHRANE-CENTRAL (vol.2, 2006), MEDLINE (1966 a 2006), EMBASE (1980 a 2006), LILACS (1982 a 2006), SciELO (1997-2006) BBO - Bibliografia Brasileira de Odontologia (1966 a 2006); resumos publicados nos congressos de medicina e odontologia do sono foram identificados manualmente; listas de referências foram checadas com os artigos originais, resumos, revisões, revisões sistemáticas para o tratamento
do bruxismo do sono. Não houve restrições de idioma. Critérios de Seleção: Nós selecionamos todos os ECCRs ou quasirandomizados
nos participantes com bruxismo do sono em que a terapia com
a placa oclusal foi comparada ao não-tratamento ou a qualquer outra
intervenção. Coleta de dados e análise: A extração de dados foi conduzida independentemente e em duplicata. Avaliação da validade dos estudos incluídos foi conduzida ao mesmo tempo em que a extração de dados. Discrepâncias foram discutidas e um terceiro revisor consultado. Os autores dos estudos incluídos foram consultados quando necessário. Principais resultados: Potencialmente 30 ECCRs foram identificados, mas apenas cinco foram incluídos. A placa oclusal foi comparada com placa palatal, aparelho de arco duplo (AAD), TENS (Transcutaneous Electrical Nervous Stimulation) e não-tratamento. Houve apenas um desfecho em comum (microdespertar/h) que permitiu a realização da metanálise. Na metanálise não foram encontradas diferenças estatisticamente significantes entre os grupos placas oclusal e palatal. Conclusões dos revisores: Não há evidência suficiente na literatura para se afirmar que as placas oclusais são efetivas para o tratamento do bruxismo do sono. Indicações do seu uso são questionáveis em relação aos desfechos do sono, mas pode ser que haja alguns benefícios com relação ao desgaste dentário. Esta revisão sistemática sugere maior preocupação na realização de futuros ECCRs: método de alocação, avaliação dos desfechos, tamanho da amostra e suficiente tempo de acompanhamento. Os desenhos dos estudos
devem ser paralelos a fim de eliminar vieses decorrentes de estudos do tipo cross-over. Há necessidade de padronização dos desfechos para o
tratamento do bruxismo do sono nos ECCRs.<br>Background: Sleep bruxism is an activity of the stomatognathic system
characterized by teeth grinding or clenching during sleep. Several treatments for sleep bruxism have been proposed such as pharmacological, psychological, and dental. Objective: To evaluate the effectiveness of occlusal splints for treatment of sleep bruxism as compared to alternative interventions or no treatment. Search strategy: We searched randomised or quasi-randomised controlled trials (RCTs) for the treatment of bruxism from the following data bases: COCHRANE-CENTRAL (vol.2, 2006), MEDLINE (1966 to 2006); EMBASE (1980 to 2006); LILACS (1982 to 2006); (Bibliografia Brasileira de Odontologia) (BBO) (1966 to 2006), SciELO (1997 to 2006); abstracts
published in sleep odontology and medicine congress were hand- searched. Additional reports were identified from the reference lists of retrieved reports and from articles, abstracts, reviews, systematic reviews about treating sleep bruxism. There were no language restrictions. Selection criteria: We selected or quasi-randomised or RCTs, from participants with sleep bruxism, in which splint therapy was compared concurrently to no treatment or any other intervention. Data collection and analysis: Data extraction was carried out independently and in duplicate. Validity assessment of the included trials was carried out at the same time as data extraction. Discrepancies were discussed and a third reviewer consulted. The author of the primary study was contacted when necessary. Main results: Thirty potentially relevant RCTs were identified. Twenty-three trials were excluded leaving five RCTs for analysis. Splint occlusal was compared to:palatal splint, double arch device, TENS, and no treatment. There was just one common outcome (arousal index) which was combined in a meta-analysis. No significant differences between occlusal splint and control group were found in the meta-analyses. Reviewers' conclusions: There is not sufficient evidence to state that the occlusal splint is effective for treating sleep bruxism. Indication of its use is questionable with regard to the sleep outcomes, but it may be that there is some benefit with regard to tooth wear. This systematic review suggests the need for further investigation in more controlled RCTs that pay attention to method of allocation, outcome assessment, large sample size, and enough duration of follow-up. The study design must be parallel, in order to eliminate the bias provided by studies of cross-over type. A standardisation of the outcomes of the treatment of sleep bruxism should be established in the RCTs.<br>BV UNIFESP: Teses e dissertações
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George, Kelly Ann. "The New Zoo: Open-Range Zoological Parks (ORZPs) - an integral piece of the wildlife conservation puzzle." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1305724196.
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Friebel, Bradford A. "Home range and habitat use of feral hogs (Sus scrofa) in Congaree National Park." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202409224/.
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Sigler, Joshua T. "The metamorphic and structural evolution of the Davis Peak area, northern Park Range, Colorado." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798480831&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
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Moore, Nicole Anne. "Role of fire on Phytophthora cinnamoni in the Stirling Range National Park, Western Australia." Thesis, Moore, Nicole Anne (2005) Role of fire on Phytophthora cinnamoni in the Stirling Range National Park, Western Australia. Honours thesis, Murdoch University, 2005. https://researchrepository.murdoch.edu.au/id/eprint/32753/.
Full textAbstract:
The Stirling Range National Park (SRNP), Western Australia, is a place of international importance with regard to its extremely high degree of biodiversity and endemism. However, the plant pathogen Phytophthora cinnamomi is having a devastating impact on the flora and plant communities of the SRNP. The inappropriate use of fire has also been considered in driving species declines in some communities in the SRNP. This present study examines for the first time, the role of these two threats together, on different plant communities of the SRNP.
Five survey sites located across four plant communities containing forty vegetation survey quadrats were chosen to compare the effects of fire on P. cinnamomi in the SRNP. Vegetation survey sites were paired between recently burnt ( < 6 years) and longer-unburnt (> 16 years) sites. A mosaic of disease-free and infested vegetation was
present at all sites, while the incidence of disease was consistently higher in recently burnt sites. Four families were the focus of the study, Proteaceae, Papilionaceae, Epacridaceae and Myrtaceae. However, species from Acacia, Hibbertia and Patersonia and the susceptible Xanthorrhoea platyphylla were also included. One hundred and fifty-two species were identified, of which 62 %, 26.6 %, 2.6% and 7.8% were obligate seeder species, resprouter species, facultative sprouter-seeder species, and of unknown fire response strategy, respectively.
Declines in species richness and abundance in recently burnt sites were identified across all plant communities surveyed. The incidence of disease declined with time since last burnt. Increased severity of disease in recently burnt and infested sites was particularly pronounced for X platyphylla. The dominant proteaceous component of the plant communities was the most impacted by the presence of P. cinnamomi in recently burnt sites. Fire promoted recruitment of some members of the Epacridaceae and Papilionaceae and especially the Myrtaceae family. However, numerous species of Epacridaceae and Papilionaceae also suffered serious declines in recently burnt P. cinnamomi infested sites. An increase in species richness and abundance from the Myrtaceae was documented in most recently burnt sites irrespective of P. cinnamomi impact.
Leaf litter measurements including percentage cover, weight (g/m2 ) and depth (mm) increased with time since last fire, while percent bare ground decreased with time since last fire. The presence of P. cinnamomi increased the incidence of percentage bare ground within quadrats. Leaf litter accumulation was also influenced by plant community type and the incidence of P. cinnamomi varied between sites and within sites. Leaf litter was considered to have important roles for reducing the incidence and severity of P. cinnamomi and in reducing conditions favourable to the pathogen. Leaf litter on steeper slopes appears to help control erosion/runoff in periods of heavy rainfall and assist in seedling establishment.
Soil temperature between 100- 200 mm depths were monitored from March 2005 to January 2006, it was identified that soil temperatures in recently burnt sites were up to 9.6 °C warmer than soil beneath leaf litter and canopy cover (long-unburnt sites). Soil moisture contents at the Bluff Knoll Road (BKR) 2000 site, at depths below 200 mm, were significantly greater in spring than at the paired but longer-unburnt BKR 1991 site. At the recently burnt Chester Pass Road (CPR) 2004 site, soil moisture in the top 100 mm was significantly greater in spring than at the longer-unburnt CPR 1996 site.
Sporangial production was significantly higher in soil extract collected from a 7-day-old fire (Saint James Track SJT) when compared to soil collected from the long-unburnt (30+) site. Sporangiallysis was greatest in the long-unburnt (30l soil extract in both seasons but was greatest in spring. Sporangial production was significantly greater in spring than autumn. The SRNP P. cinnamomi isolate MPOS-1 produced significantly more sporangia in both seasons than the DP55 isolate from the southcoast. Soil microbial activity was significantly reduced in the SJT soil when compared to the comparable long-unburnt soil of CPR (30l. Fire significantly increased the concentrations ofpotassium, sulphur, organic carbon and the electrical conductivity and pH of the SJT soil. Soil type was found to have a strong influence on the nutrient composition of sites. Even though some of the findings regarding changes to soil microclimates are preliminary they do undoubtedly provide important directions for future research into the role of fire in P. cinnamomi infested communities.
This study has shown that fire in P. cinnamomi infested communities has the potential to increase both the severity and extent of disease in native plant communities, and impinge on the regeneration capabilities of susceptible species. The findings have important implications for P. cinnamomi and fire management within the SRNP, and have established a foundation from which future research and monitoring of the plant communities and further soil investigations can be based. With careful consideration of the benefits of regeneration from fire in some plant communities and the evidence that fire can increase the severity of disease in infested sites, management may be able to meet these conflicting disturbances.
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Ferreira, Luciana de Lima. "Hospedeiros vertebrados são eficientes reservatórios para a transmissão do Trypanosoma rangeli ao inseto vetor." Universidade Federal de Minas Gerais, 2013. http://hdl.handle.net/1843/BUOS-979GKT.
Full textAbstract:
Triatomines are insects that live primitively in the wild in association with nests of rodents, birds and marsupials. Besides the blood spoliation they cause, triatomines can transmit protozoans such as Trypanosoma cruzi and Trypanosoma rangeli. T. rangeli does not harm humans, although it might induce many pathogenic effects to the insect vector. Little is known about the development of T. rangeli inside their vertebrate
host, since the infectivity is generally low and parasites tend to disappear from blood circulation. Transmission of the parasite occurs during the insect bite, but the mechanisms by which the insects acquire the infection from a very small number of circulating parasites in the vertebrate host are still unknown. In this work, we initially evaluated the possibility of T. rangeli transmission between insects via hemolymphagy behavior and during the blood feeding in an uninfected vertebrate host. Our results have shown, that during our experiments, the insects did not perform hemolymphagy behavior, without any detection of T. rangeli transmission even when infected insects were kept together with uninfected ones during a long period of fast. However, when
uninfected nymphs were simultaneously fed together with infected nymphs in a same uninfected host, they presented infection rates higher than 60%. The number of parasites released from R. prolixus nymphs saliva during feeding was estimated using Neubauer chamber counts and qPCR. Although variations were found between insects, the
average number of parasites in the salivary glands was highly reduced after a blood meal. Transmission rates to mice via the bite of infected nymphs were very high, reaching around 90%. We also observed a high capacity of these mice in transmiting the parasite to other uninfected nymphs even 30 days after they were infected. A Choachi strain maintained in LIT culture for a longer period showed a decrease in its capacity of being transmitted from infected mice to uninfected nymphs. Furthermore, the parasite load of nymphs which did get infected in these experiments was also lower. The number of parasites in both the blood of infected mice and in the anterior midgut of recently fed nymphs in these animals were not high enough to be detected via Neubauer chamber
counting. Despite the low parasite load in the blood circulation of mammal host, the high infection rates found in nymphs blood fed in these mice, even in those holding older infections, strongly suggest the existence of a development cycle of T. rangeli in it mammal host.<br>Os triatomíneos são insetos primitivamente silvestres, onde vivem associados a ninhos de roedores, aves e marsupiais. Além da espoliação sanguínea que causam, os triatomíneos podem transmitir protozoários como o Trypanosoma cruzi e o Trypanosma rangeli. O T. rangeli não causa doença ao homem, mas pode produzir diversos efeitos patogênicos ao inseto vetor. Pouco se sabe sobre o desenvolvimento do T. rangeli no hospedeiro vertebrado, uma vez que a infectividade é baixa e os parasitos tendem a desaparecer da circulação. A transmissão do parasito ocorre durante a picada do inseto, mas ainda não são conhecidos os mecanismos pelos quais os insetos adquirem a infecção a partir de um número tão pequeno de parasitos circulantes no hospedeiro vertebrado. No presente trabalho, inicialmente foi avaliada a possibilidade de transmissão do T. rangeli entre insetos através do comportamento de hemolinfagia e durante a alimentação em hospedeiro vertebrado não infectado. Os resultados mostraram que não houve motivação para realização do comportamento de hemolinfagia durante os dez minutos avaliados e nem transmissão do parasito, mesmo quando insetos infectados e alimentados foram mantidos juntos com insetos controles e em jejum por um período de quinze dias. Entretanto, quando ninfas não infectadas foram colocadas para se alimentarem simultaneamente com ninfas infectadas num
mesmo hospedeiro sadio, apresentaram taxas de infecção superiores a 60%. O número de parasitos liberados de ninfas de R. prolixus juntamente com a saliva durante a alimentação foi estimado a partir de contagem em câmara de Neubauer e por quantificação em qPCR. Apesar de variável entre os insetos, o número médio de parasitos nas glândulas salivares foi bastante reduzido após a realização do repasto
sanguíneo. As taxas de infecção de camundongos que foram expostos à picada de uma ninfa infectada foram bastante elevadas, ficando em torno de 90%. A capacidade destes camundongos de transmitirem o parasito para ninfas não infectadas também foi elevada, mesmo quando as ninfas se alimentaram em animais infectados há mais de 30 dias. A manutenção da cepa Choachi por mais de trinta dias em meio LIT diminuiu a capacidade dos camundongos em transmitir o parasito para ninfas não infectadas, bem como a carga parasitária daquelas que se infectaram. O número de parasitos presentes na circulação sanguínea de camundongos bem como o número de parasitos presentes no
intestino médio anterior de ninfas recém-alimentadas em camundongos infectados não foram suficientes para serem detectados através da contagem em câmara de Neubauer. Apesar do raro encontro de parasitos circulantes no roedor, as altas taxas de infecção encontradas nas ninfas que se alimentaram nesses animais, mesmo naqueles infectados há mais tempo, sugerem fortemente a existência de um ciclo de desenvolvimento do T. rangeli nesse hospedeiro mamífero.
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Castillo, Toro Pamela Andrea. "Determinación de Rangos de Operación de Generador de Inducción para Aplicación en Aerogeneradores." Tesis, Universidad de Chile, 2010. http://www.repositorio.uchile.cl/handle/2250/103867.
Full textAbstract:
En el presente trabajo de título se analiza teórica y experimentalmente el funcionamiento de una máquina de inducción de jaula de ardilla, operando como generador de un aerogenerador conectado a la red. El objetivo es analizar y caracterizar el comportamiento del aerogenerador, determinando valores de velocidad límites de operación, en la zona de generador de la máquina de inducción. En efecto, una máquina de inducción de jaula de ardilla simple, debe operar a velocidad mayor a la síncrona para generar; y a su vez, la máquina no debe superar determinado valor de velocidad, para evitar elevadas corrientes que la dañarían por temperatura.
Para estudiar experimentalmente este comportamiento, como máquina motriz se utiliza un motor de corriente continua, el cual emula a la hélice del aerogenerador movida por el viento. De esta forma, se obtienen experimentalmente los parámetros de la máquina de inducción y su rango de generación, que resulta ser relativamente pequeño (1500 a 1516 [rpm] en el caso estudiado). Con los parámetros mencionados, se realizan cálculos en base a modelos simplificados, para comparar los resultados experimentales con los teóricos y asegurar la confiabilidad del modelo.
Para ampliar el rango útil de velocidades de generación antes obtenido, se realizan pruebas experimentales conectando el generador a la red mediante un variador de frecuencia y empleando una máquina de inducción de rotor bobinado. En el primer caso, se muestra que controlando la frecuencia del variador, es posible generar en un amplio rango de velocidades. Y en el caso de rotor bobinado, se encuentra que agregando resistencias al rotor también se obtiene una ampliación en el rango de velocidades de generación, pero menos significativa que con el variador de frecuencia.
Finalmente, se hace una aplicación teórica para una instalación donde se conoce el régimen de viento y la curva de demanda. Primero se especifican la hélice y el generador, y luego – mediante modelos de la hélice y del generador – se evalúa el rango de velocidades en que se puede generar, tanto para el generador conectado directo a la red, como también conectado mediante un variador de frecuencia.
Al evaluar el ahorro de energía que se logra, se concluye que la solución propuesta con variador de frecuencia es notablemente mejor y se justifica estudiarla en más detalle en un trabajo próximo.
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King, Sarah Rachel Buckley. "Behavioural ecology of Przewalski horses (Equus przewalskii) reintroduced to Hustai National Park, Mongolia." Thesis, Queen Mary, University of London, 2012. http://qmro.qmul.ac.uk/xmlui/handle/123456789/26245.
Full textAbstract:
Studies on the behavioural ecology of Przewalski horses (Equus przewalskiiy) recently reintroduced into Hustai National Park, Mongolia were carried out between 1998 and 2000. Home range size and habitat use, social, marking, and vigilance behaviour, and their reaction to flies were quantified. Home ranges of harems ranged from 129 ha to 2399 ha, with core areas of between 61 ha and 1196 ha. There was no relationship between range size and harem size, or length of time since release. The more nutritious vegetation at lower elevations was preferentially selected. The horses rested near ridges during the hotter parts of the day where there were fewer flies, and grazed in the valleys in the mornings and evenings. Woodland areas were used to shelter from the sun, despite their high fly abundance. Muscid flies were most frequently caught; Tabanids were rare. Dominance was related to age, aggression and length of time in the harem. The frequency of associative behaviours did not correlate with any social factor, but had a hygienic function. Stallions marked stud piles wid mare eliminations in different ways suggesting different functions. In addition to being vigilant for predators, the horses appeared to scan for social cues and food patches. Home range size and habitat use, and general pattern of marking and vigilance behaviour, of the wild Przewalski horses were similar to those seen among feral domestic horses, although they tended to be less aggressive than captive and feral horses. So far, the re-establishment of przewalski horses into HNP appears to have been successful, although constant monitoring of the population is necessary. As the population grows, there will be potential problems to do with exceeding the carrying capacity of the park and hybridisation with domestic horses. The future management of the horses is discussed.
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Neuman, Michael John 1964. "Packstock hoofprint depth and soil strength relationships in wet meadow soils of Sequoia and Kings Canyon National Parks, California." Thesis, The University of Arizona, 1996. http://hdl.handle.net/10150/278574.
Full textAbstract:
Penetrometer soil strength and the depth of packstock hoofprints were studied in two subalpine meadows in an attempt to develop a method for determining the seasonal readiness of wilderness meadows for packstock grazing at Sequoia & Kings Canyon National Parks, California. Soil and vegetation parameters (bulk density, water content, percent gravel, sand, silt, clay, and organic matter, above-ground biomass, and below-ground biomass in two diameter size classes) were also studied in order to understand their influence on soil strength and hoofprint depth. Of the four penetrometer tip sizes tested on a Lang penetrometer, a 9/16" diameter tip was found to be a good predictor of hoofprint depth. Both 9/16" soil strength and hoofprint depth were well predicted by soil water content and meadow vegetation type.
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Green, Douglas A. "Structural Geology of the Central Part of Clarkston Mountain, Malad Range, Utah." DigitalCommons@USU, 1986. https://digitalcommons.usu.edu/etd/6683.
Full textAbstract:
The central part of Clarkston Mountain is located in northcentral Utah in the southern part of the Malad Range. It is northwest of Clarkston, Utah. The mapped area measures 2.5 mi. in the north-south direction and 6.5 mi. in the east-west direction. It is within the Basin and Range Province.
The Ute Formation of Middle Cambrian age is the oldest exposed stratigraphic unit. Other Cambrian units, in ascending order, are: Blacksmith Formation, Bloomington Formation, Nounan Formation, and St. Charles Formation. These units consist predominantly of limestone, dolostone, and shale. Units of Ordovician age include the Garden City Formation and the Swan Peak Formation. They consist of limestone and orthoquartzite, respectively. The youngest Paleozoic unit is the Fish Haven-Laketown Formation of Ordovician-Silurian age. It is dolostone. Units of Quaternary age include colluvial deposits, Lake Bonneville Group, and alluvial deposits.
West-dipping, low-angle normal faults generally trend north and northwest. They were originally thrust faults formed during regional compression. A bedding-plane thrust fault separates the Bloomington and Nounan Formations.
Later reversed movement on the west-dipping, low-angle thrust faults changed the stratigraphic relationships across these faults to those characteristic of normal faults. High-angle normal faults trend northwest, north, and northeast. Major normal faults extend along the western and eastern sides of Clarkston Mountain and are responsible for the present topographic relief.
The structural features of the mapped area are the result of two major tectonic events. The Sevier orogeny produced eastward directed thrust faults. It began in Late Jurassic and ended in early Eocene. Basin and Range normal faulting caused reversed movement on west-dipping thrust faults, formed by the Sevier orogeny, and also produced many high-angle normal faults. It began in early Eocene and has continued into historic time in the region.
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Crook, Stephen R. "Structural Geology of the Northern Part of Elkhorn Mountain, Bannock Range, Idaho." DigitalCommons@USU, 1985. https://digitalcommons.usu.edu/etd/6677.
Full textAbstract:
Northern Elkhorn Mountain was unmapped previous to this investigation. The mapped area is located north of Malad City, Idaho, in the Bannock Range. It is within the Basin and Range Province. The mapped area measures 5.4 mi. in the north-south direction and 8.9 mi. in the east-west direction.
The oldest exposed stratigraphic unit, within the mapped area, consists of orthoquartzite and is of Early Cambrian age. Cambrian formations of the mapped area, in ascending order, are as follows: Camelback Mountain Quartzite, Gibson Jack Formation, Elkhead Formation, Bloomington Formation, Nounan Formation, and St. Charles Formation. Units of Ordovician age are the Garden City and Swan Peak Formations. The youngest unit of Paleozoic age, found within the mapped area, is the Fish Haven-Laketown Formation of Ordovician-Silurian age. Rock types comprising the Paleozoic units are orthoquartzite, limestone, dolostone, and shale. Tertiary units present, within the area, are the Salt Lake Formation and volcanic rocks with the composition of andesite. These units occur only in isolated parts of the mapped area. Colluvial and alluvial deposits of Quaternary age are present in the valley west of Elkhorn Mountain and in the southeastern and northeastern parts of the mapped area.
Numerous high-angle normal faults dominate the structure of the area. They trend generally north and northwest. A major high-angle normal fault extends along the western side of Elkhorn Mountain and is responsible for the present topographic relief. Several small asymmetrical anticlines and a low-angle thrust fault are also present.
The structural features, within the area, resulted from two major periods of crustal deformation. The first event was the Laramide orogeny. Compressional forces, generated during this event, produced the anticlines and the thrust fault. Movement was eastward. The second event was Basin and Range faulting. It produced the high-angle normal faults. Basin and Range faultinq has been active from Oligocene to Holocene. The marginal normal fault, west of Elkhorn· Mountain, is probably active at the present time.
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Kite, Jeremy Keith. "A Biological science technican (wildlife) internship with the United States Forest Service Region 6 Umpqua National Forest Diamond Lake Ranger District Idleyld Park, Oregon." Miami University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=miami1366877106.
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Paiva, Júnior Edmar Franco de. "Padrões foliares e de solo para a cultura do feijoeiro comum no vale do Rio dos Bois – Goiás." Universidade Federal de Goiás, 2011. http://repositorio.bc.ufg.br/tede/handle/tede/4984.
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Previous issue date: 2011-02-28<br>Current reference values are lacking for the crop of common bean in the state
of Goias. Among the methods used for interpretation of foliar and soil analysis have been
the sufficiency ranges, as established by usage and technique of the Integrated System of
Diagnosis and Recommendation (DRIS), still in its infancy for most crops. The DRIS has
proven effective as a method for nutritional diagnosis in different cultures. Despite the
evident application in the foliar results interpretation has currently extended the DRIS to
interpret soil data. However has not been used in the bean crop, mainly in the state of
Goiás. The aim of this study was to obtain DRIS standards and sufficiency ranges for leaf
and soil for bean winter crop in the micro region of Vale do Rio dos Bois – Goiás. Were
monitored 31 commercial areas in the winter season of 2010 year, extracting from the
same foliar data (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn) and soil (Ca, Mg, K, P, S, Zn,
B, Cu, Fe, Mn, CTC, V% and MO). The leaf samples were collected at the R5 growth
stage (flowering). Were removed 80 leaves per tillage, 20 per quadrant in each point,
taking the first mature leaf from the upper leafs. Were removed 80 simple samples of soil
per tillage and 20 per quadrant in depth from 0 to 10 cm to form a composite sample that
was sent for analysis. To evaluate the productivity was applied a questionnaire to each
producer. Standards of soil and leaves have been developed from a population with
productivity greater than 2700 kg ha-1 of beans. Most of the established parameters showed
disagreement with the theoretical that has now for the state. The standards DRIS and
sufficiency range apply to the nutritional diagnosis of common bean in the study area; it is
important the develop of regional standards for the common bean crop; mostly of the
analyzed chemical attributes of soil was categorized as excessive; it is important to develop
regional reference values to the soil in the Goiás State.<br>Faltam valores de referência atuais para a cultura do feijoeiro comum no estado
de Goiás. Dentre os métodos utilizados para interpretação de análise foliar e de solo têm-se
as faixas de suficiência, já consagradas pelo uso e a técnica do Sistema Integrado de
Diagnose e Recomendação (DRIS), ainda incipiente para a maioria das culturas. O DRIS
tem se mostrado eficiente como método para diagnóstico nutricional em diversas culturas.
Apesar da evidenciada aplicação na interpretação de resultados foliares, atualmente tem-se
estendido o DRIS para interpretar dados de solo. Porém praticamente não tem sido
empregado na cultura do feijoeiro, principalmente no Estado de Goiás. O objetivo deste
trabalho foi obter normas DRIS e faixas de suficiência para folha e solo para o feijoeiro
safra de inverno na microrregião do Vale do Rio dos Bois – Goiás. Foram monitoradas 29
áreas comerciais na safra de inverno de 2010, extraindo das mesmas dados foliares (N, P,
K, Ca, Mg, S, B, Cu, Fe, Mn e Zn) e de solo (Ca, Mg, K, P, S, Zn, B, Cu, Fe, Mn, CTC,
V% e MO). As amostras de folha foram coletadas no estádio fenológico R5
(florescimento). Retirou-se 80 folhas por lavoura, sendo 20 por quadrante. Coletou-se a
primeira folha madura a partir dos folíolos superiores. Foram retiradas 80 amostras simples
de solo por lavoura sendo 20 por quadrante numa profundidade de 0 – 10 cm para compor
uma amostra composta que foi enviada para análise. Para avaliação da produtividade
aplicou-se um questionário a cada produtor. Foram estabelecidas normas de folha e solo a
partir de uma população com produtividade maior que 2700 kg ha-1 de feijão. A grande
maioria dos parâmetros estabelecidos apresentou discrepância em relação ao referencial
teórico que se tem atualmente para o Estado. As normas DRIS e faixa de suficiência são
aplicáveis para o diagnóstico nutricional do feijoeiro comum na região em estudo; é
importante o desenvolvimento de normas regionais para a cultura do feijoeiro comum; a
maioria dos atributos químicos dos solos analisados ficou categorizada como excessivo; é
importante o desenvolvimento de valores regionais de referência para solo no Estado de
Goiás.
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SOUZA, Roberta de Freitas. "Sistema integrado de diagnose (DRIS) para a cultura do algodão no município de Silvânia-Goiás." Universidade Federal de Goiás, 2009. http://repositorio.bc.ufg.br/tede/handle/tde/2680.
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Previous issue date: 2009-02-18<br>The Diagnosis and Recommendation Integrated System (DRIS) is an efficient tool for nutritional diagnosis on several crops. However, it no longer has been used on cotton crop, mainly in Goiás State. This work aimed to gain DRIS norms and diagnose the most limiting nutritional factors to obtain high cotton yields, using soil and leaf analysis, interpreted through critical levels or concentration ranges and DRIS techniques. Sampling sites were chosen on commercial area according to local topographic features and soil classes, trying to maintain their inside uniformity. Soil and leaf samples were taken at the
full flowering stage (90 day after seeding). Ten leafs from each point were sampled, withdrawing the fifth leaf from the apex of the main stem, and for soil analysis six single
samples from 0 to 20 cm at each point. Yields were assess after physiological maturation, taking two seeding rows five meters long for harvesting cotton fiber. Soil and leaf data
were interpreted through DRIS and concentration ranges techniques. Norms were established from populations with yields greater than 4 Mg ha-1 of nutmeat cotton for
calculating the DRIS indices. The diagnosis techniques assessed in this work showed distinct interpretations. The nutrients S, P, B, Zn, Fe and Mn showed to be the most
limiting ones, as evaluated on by soil and analysis and diagnosed through the DRIS technique. Using the concentration range technique P, Zn and SOM in soil data, whereas in leaf data, S, Zn, K and B, are the most limiting ones. DRIS showed higher sensibility for diagnosing nutritional deficiencies, moreover, for micronutrients.<br>O Sistema Integrado de Diagnose e Recomendação (DRIS) tem mostrado-se eficiente como método para diagnóstico nutricional em diversas culturas. Porém o método
tem sido pouco empregado na cultura do algodoeiro, principalmente no Estado de Goiás. O objetivo deste trabalho foi obter normas DRIS e diagnosticar os fatores nutricionais mais limitantes à obtenção de altas produtividades para a cultura do algodão, através de análises foliares e de terra, interpretadas pelos métodos faixas de concentração ou níveis críticos e DRIS. Foram selecionados pontos de amostragem, em uma área comercial no município de Silvânia, Goiás, conforme as características locais de topografia e tipo de solo,
procurando-se manter uniformidade dentro dos pontos e diferenças entre eles. As amostras de terra e folha foram coletadas na época de florescimento pleno (90 dias após o plantio). Coletou-se 10 folhas em cada ponto, retirando-se a quinta folha a partir do ápice da haste principal, e para a análise de terra coletou-se seis amostras simples na profundidade de 0 a 20 cm para cada ponto, totalizando 108 pontos de amostragem. Para avaliação da produtividade em cada ponto de amostragem, após a maturação fisiológica, foram tomadas duas linhas de cinco metros lineares de plantio, colhendo-se as plumas. As análises de terra
e folhas foram interpretadas pelos métodos das faixas de concentração ou níveis críticos e o DRIS. Foram estabelecidas normas a partir de uma população com produtividade maior
que 4.000 kg ha-1 de algodão em caroço para cálculo dos índices DRIS. Os métodos de diagnose avaliados neste trabalho apresentaram interpretações distintas. Os nutrientes S, P, B, Zn, Fe e Mn foram os mais limitantes nas análises de terra e de folha, diagnosticados pelo método DRIS. Pelas faixas de concentração ou níveis críticos P, Zn e matéria orgânica foram os mais limitantes nas análises de terra, enquanto nas análises foliares foram os nutrientes S, Zn, K e B. O método DRIS apresentou maior sensibilidade para diagnosticar problemas nutricionais, especialmente, para micronutrientes.
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Federschmidt, Sara E. "PALEOSEISMIC AND STRUCTURAL CHARACTERIZATION OF THE HINES CREEK FAULT: DENALI NATIONAL PARK AND PRESERVE, ALASKA." UKnowledge, 2014. http://uknowledge.uky.edu/ees_etds/22.
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The Hines Creek fault (HCF) is a Holocene-active fault in central Alaska. Its trace has been mapped several times, but data on the history of fault displacement is scarce. As a major crustal-scale geologic boundary with uncertain Quaternary tectonic activity, it is a priority for more to be known about the activity of this fault to better understand the hazards it presents to the Denali National Park and Preserve and Alaskan infrastructure. This study characterizes the late Quaternary activity of the HCF through surficial geologic mapping and paleoseismic investigations. Mapping revealed a very steep (~84°-88° apparent dip), north dipping fault plane and measurements from offset Pleistocene outwash terraces revealed south side-down vertical offsets of up to 12 m, indicating a steeply dipping reverse fault. Three paleoseismic trenches excavated across the fault trace provided a record of seismic activity and hold evidence for at least four prehistoric earthquakes in the last 2 ka. Slip rate calculations estimate movement on the HCF to be between 0.6mm yr-1 and1.2 mm yr-1. The active trace of the HCF follows the southern margin of the tectonically active Mount Healy anticline, suggesting a kinematic linkage between the fault that underlies this anticline and the HCF.
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Venturini, Tiago. "Estratégias de manejo do capim papuã para a recria de bovinos de corte." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1518.
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O objetivo foi avaliar a influência da adubação nitrogenada ou da suplementação energética sobre a produção e qualidade de uma pastagem de capim papuã (Urochloa lantaginea) e no desempenho e comportamento ingestivo na recria de bovinos de corte. O trabalho foi conduzido na UTFPR-DV, por meio de pastejo contínuo em uma área de 6,3 ha divididos em nove piquetes. Os tratamentos avaliados foram pastagem + nitrogênio, pastagem + suplementação e somente pastagem, com uma oferta de forragem média de 10%. A duração do pastejo foi de 107 dias, utilizando animais mestiços (Nelore x Braford), não castrados, com peso médio de 276 kg. As análises bromatológicas foram semelhantes entre os tratamentos, diferindo apenas para proteína bruta, sendo superior no tratamento com adição de nitrogênio. A taxa de acúmulo apresentou-se maior no tratamento com nitrogênio (55,70 kg de MS/ha/dia) comparado à suplementação e somente pastagem (40,03 e 39,65 kg de MS/ha/dia, respectivamente). A suplementação resultou em maior ganho de peso médio diário (0,815 kg) em comparação com o nitrogênio (0,685 kg) e somente pastagem (0,727 kg). As atividades de ócio, ruminação e consumo de água não diferiram entre os tratamentos, apenas o pastejo apresentou-se inferior nos animais suplementados em relação aos demais. O número de bocados diurnos foi superior (P<0,005) no tratamento com suplementação e somente pastagem em relação ao tratamento com adubação nitrogenada no capim papuã,(2.029,9; 1.863,6 e 1.715,7, respectivamente). A carga animal, os ganhos por área e a composição bromatológica da pastagem não apresentaram diferenças entre os tratamentos. A suplementação energética permite maiores ganhos diários e diminui o tempo dispendido com pastejo sem alterar outras variáveis comportamentais como, ruminação, ócio e ingestão de água. A aplicação adicional de N não afeta a massa de forragem, o perfil botânico e o desempenho animal, apesar de aumentar a taxa de acúmulo diário e os teores de proteína bruta da forragem e contribui para reduzir o número de bocados diariamente e aumenta a taxa de acúmulo da pastagem.<br>The objective was to evaluate the influence of nitrogen fertilizer or energy supplementation on production and quality of a pasture Alexander grass (Urochloa plantaginea) and performance and feeding behavior in the rearing of beef cattle. The work was conducted at UTFPR – DV through continuous grazing in an area of 6.3 ha divided into nine paddocks. The treatments were grazing + nitrogen + supplementation and grazing pasture only, with a supply of fodder average of 10 %. The duration of grazing was 107 days using crossbred (Nellore x Braford), not neutered, with average weight of 276 kg. The chemical analyzes were similar among treatments, differing only for crude protein, being higher in the treatment with nitrogen addition. The accumulation rate was higher in the treatment with nitrogen (55.70 kg DM/ha/day) compared to supplementation and only pasture (40.03 and 39.65 kg DM/ha/day, respectively). Supplementation resulted in higher average daily weight gain (0.815 kg) compared to nitrogen (0.685 kg) and only pasture (0.727 kg). Leisure activities, rumination and water consumption did not differ between treatments, only grazing presented lower in the supplemented animals compared to the other. The number of bits daytime was higher (P<0.005) in the treatment pasture with supplementation and only in relation to treatment with nitrogen fertilization in Alexander grass, (2029.9, 1863.6 and 1715.7, respectively). Supplementation allows higher daily gains and reduces the time spent on grazing without changing other variables such as behavioral, rumination and water intake. The additional application of N did not affect herbage mass, botanical profile and animal performance, despite increasing the accumulation rate and the crude protein content of forage and helps to reduce the number of bits daily and increases the rate of accumulation pasture.
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Nowaki, Rodrigo Hiyoshi Dalmazzo [UNESP]. "Padrões para avaliação do estado nutricional do tomateiro para indústria." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152192.
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Previous issue date: 2017-09-29<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>A avaliação do estado nutricional, a partir da análise foliar, é importante, como complemento à análise química do solo, para a identificação de desequilíbrio nutricional e auxiliar na recomendação de fertilizantes. Tal avaliação torna-se ainda mais importante, quando se trata do tomate de indústria, uma das hortaliças de maior valor econômico no Brasil e que os fertilizantes chegam a representar 18 % do custo de produção. Para tanto, conceitos de interpretação à diagnose do estado nutricional foram desenvolvidos, como o Sistema Integrado de Diagnose e Recomendação (DRIS) e Diagnose da Composição Nutricional (CND), abordagem CND-clr (relação log centralizada) e CND-ilr (relação log isométrica). Com isso, o objetivo da realização do presente trabalho foi obter as normas e a faixa de suficiência, bem como comparar tais metodologias, a partir dos dados de nutrientes (N, P, K, Ca, Mg, S, B, Cu, Fe, Mg e Zn). Quando analisados individualmente, com exceção do método DRIS, os métodos CND-clr e CND-ilr, apresentaram boas performances e com bons parâmetros de calibração dos métodos. Contudo, quando analisados de maneira conjunta, segundo a distância de Mahalanobis e a partição de Cate-Nelson, todos os métodos, incluindo a transformação log neperiano do teor, não apresentaram diferença significativa.<br>The evaluation of nutritional status through leaf analysis is important, as a complement to soil chemical analysis, for the identification of nutritional imbalance and ancillary fertilizer recommendation. This evaluation becomes even more important when it comes to the tomato industry, one of the vegetables with the highest economic value in Brazil, and that fertilizers represent 18% of the cost of production. For this purpose, concepts of interpretation and diagnosis of nutritional status were developed, such as the Diagnosis and Recommendation Integrated System (DRIS) and Compositional Nutrient Diagnosis (CND), CND-clr (centralized log ratio) and CND-ilr (isometric log rato) approach. Thus, the goal of the implementation of this work was to obtain standards and sufficiency range and compare these methods, from the nutrient data (N, P, K, Ca, Mg, S, B, Cu, Fe , Mn and Zn). When analyzed individually, with the exception of the DRIS, the CND-clr and CND-ilr methods presented good performances and with good calibration parameters of the methods. However, when analyzed together, according to the Mahalanobis distance and the Cate-Nelson partition, all methods, including log transformation of the content, showed no significant difference.<br>FAPESP: 2013/24447-4<br>FAPESP: 2015/11321-8
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LIMA, Stélio Bezerra Pinheiro de. "Avaliação nutricional de co-produtos do milho para frango de corte caipira." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6920.
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Previous issue date: 2007-02-15<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>The objective of this work was to determine the chemical composition and the metabolic yield of the integral germ of corn (IGC), bran of glúten 21% (BG-21) and bran of glúten 60% (BG-60). Three samples of each waste was analyzes: dry matter, crude protein, ash, fat, crude energy, crud fiber concentration. After, three assays of metabolization was carried through, which had represented the phases: initial, growth and termination of the free-range chicken, for determines the coefficients of apparent metabolization of the dry matter (CAMDM) and of the crude energy (CAMCE), the apparent metabolizable energy (AME) and apparent corrected for nitrogen (AMEn), true metabolizable energy (TME) and true corrected for nitrogen (TMEn). The IGC obtained high concentration the fat (46.24%), whereas the high bG-21 CF values (10.55%) and the G-60 values of CP above of 65.97%. CAMDM andCAMCB was highest for the BG-60 (56.82 and 63.73%), after of the IGC (45.36 and 41.00%) and of the BG-21 (27.94 and 30.43%). The mesas values of AMEn were: 2,701; 1,069 and 3,195 kcal/kg for the IGC, the BG-21 and the BG-60, respectively. The crescent linear effect the age for energy metbolizable values in the IGC and BG-21.<br>O experimento teve como objetivo estudar a composição química e o aproveitamento metabólico do gérmen integral de milho (GIM), do farelo de glúten 21% (FG-21) e do glúten 60% (G-60). Inicialmente três amostras de cada alimento foram analisadas quanto aos teores de MS, PB, MM, EE, EB, FB. Em seguida foram realizados três ensaios de digestibilidade nas fases inicial, crescimento e terminação do frango caipira, para determina os coeficientes de metabolização aparente da matéria seca (CMAMS) e da energia bruta (CMAEB), a energia metabolizável aparente (EMA) e aparente corrigida para nitrogênio (EMAn) e a energia metabolizável verdadeira (EMV) e verdadeira corrigida para nitrogênio (EMVn). O GIM apresentou alto teor de EE (46.24%), enquanto que o FG-21 altos teores de FB (10,55%) e o G-60 teores de PB acima de 65,97%. Os CMAMS e CMAEB foram maiores para o G-60 (56,82 e 63,73%), seguido do GIM (45,36 e 41,00%) e posteriormente do FG-21 (27.94 e 30,43%). Os valores médios de EMAn foram: 2.701, 1.069 e 3.195 kcal/kg para o GIM, o FG-21 e o G-60, respectivamente, sendo os maiores valores com o avançar da idade, exceto para o G-60.
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Sen, Asok Kumar. "Part I, traveling cluster approximation for uncorrelated amorphous systems ; Part II, influence of long-range forces on the wetting transition /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487260859496667.
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Vargas, Paola Andrea Ortiz. "Genes de cisteíno proteases (Catepsina L-like) de Trypanosoma rangeli: polimorfismo, relações filogenéticas e alvos para diagnóstico e genotipagem." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/42/42135/tde-16072009-154538/.
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Nós isolamos e seqüenciamos genes que codificam Catepsina L-like em diversos isolados de T.rangeli de humano, mamíferos silvestres e Rhodnius spp., do centro e sul da América. Análises filogenéticas de seqüências que codificam a proteína madura de T. rangeli, outras espécies de Trypanosoma e Leishmania e duas espécies de bodonídeos, posicionaram T.rangeli próximo a T.cruzi de acordo com a ordem de divergência determinada em filogenias baseadas em SSUrDNA. Uma análise de 17 seqüências do domínio catalítico de CatL-like de isolados representativos da diversidade filogenética e distribuição geográfica de T. rangeli, apoiaram as mesmas linhagens filogenéticas previamente definidas. Seqüências do gene CatL-like também foram usados para padronizar ensaios de PCR para diagnóstico de T. cruzi e T. rangeli. Além disso, um método de genotipagem por PCR multiplex segregou os isolados de T. rangeli nas principais linhagens previamente estabelecidas. Este é o primeiro estudo usando um gene codificador de proteína para comparar isolados de T. rangeli de linhagens distintas.<br>We have isolated and sequenced genes encoding cathepsin L-like (CatL-like) cysteine proteases from isolates of T. rangeli from human, wild mammals and Rhodnius spp., from Central and South America. Phylogenetic analysis of sequences encoding the mature CatL-like enzymes from T. rangeli (Rangelipain), other Trypanosoma and Leishmania species, and two species of bodonids, positioned T. rangeli closest to T. cruzi corroborating the same order of divergence showed in phylogenies based on SSU rDNA. Analysis of 17 sequences of the catalytic domains of CatL-like genes isolates representative of the phylogenetic diversity and geographical range of T.rangeli supported previously defined phylogenetic lineages. Sequences of CatL-like genes were used to standardize PCR assays for the diagnosis of T. rangeli and T. cruzi, and a genotyping method of multiplex-PCR distributed of isolates of T. rangeli in the major phylogenetic lineages previously established. This is the first study using protein-encoding genes to compare isolates from T. rangeli of distinct lineages.
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Reynolds, John J. "Population ecology, home range size, and caching behaviour of red squirrels, Tamiasciurus hudsonicus, in Terra Nova National Park, Newfoundland." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23171.pdf.
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Lewis, Michelle Nicole. "Life history and reproductive biology of Clitoria fragrans relative to fire history on the Avon Park Air Force Range." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3363.
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The southeastern coastal plain of the United States is a center of endemism for plants in temperate North America and second only to California among the states. In the southeast, Florida has the largest number of these endemic plants. The largest number of these Florida endemics can be found in the fire maintained scrub and sandhill communities located on sandy ridges in Central Florida. One such endemic is Clitoria fragrans, a rare perennial herb. C. fragrans reproduces via a mixed mating system. It produces both open, chasmogamous flowers and closed, selfed, cleistogamous flowers. Little else is known about its biology. I monitored populations of C. fragrans from 2003-2005 on the Avon Park Air Force Range. I tracked plant density, finite rate of population increase, plant survivorship and reproduction relative to the time since fire and season of fire. I found that recently burned plots had a higher density of plants than those unburned for over 13 years. Unburned populations decreased in all years of the study. In all three years, the majority of flowers produced by Clitoria fragrans were cleistogamous. The production of chasmogamous flowers appears to be influenced by plant size and potentially fire. Unburned plots had less variation than recently burned plots for all independent variables.<br>M.S.<br>Department of Biology<br>Sciences<br>Biology MS
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Umrani, Aslam Pervez. "Sustainability in contrasting farming systems : part 1 - utilisation of herbs and grass in temperate organic (sustainable) farming systems; part 2 - sustainable management of semi-arid ranges in two locations of Pakistan." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU106487.
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The aims of the current study were to develop sustainable approaches for contrasting farming systems. Experimental work was started at the beginning of 1995 and completed at the end of the 1997. During that period, besides the development of the model, eleven experiments were conducted at Craibstone, Aberdeen. Out of eleven experiments six experiments ran for a one year period, four experiments for a two year period and an animal feeding trial ran for five weeks. The establishment, persistence and production trials (eight experiments) of chicory and ribwort showed that a perennial ryegrass had negative effect on establishment of roots, shoots leaf size and leaf number of both herbs during the growing phase, which ultimately reduced the percentage contribution and yield of herbs. Nevertheless, it also reduced the infestation of weeds significantly. In contrast, white clover appears to be less competitive to the herbs and with its N fixing ability, it may be an ideal companion in binary mixtures. In tertiary mixtures, timothy appeared to be less competitive than perennial ryegrass and suitable for tertiary mixtures. In the lamb feeding trial, chicory increased markedly the Ca, Mg, Cu and vitamin B<SUB>12</SUB> (Co) status of the lambs and also improved the PO<SUB>4</SUB>, Na, and GSH-Px (Se) status as compared to an unsupplemented perennial ryegrass diet. In two separate experiments, the seasonal herbage growth pattern in permanent and temporary swards, were observed under organic farming conditions, which displayed a different herbage growth rate and production than those previously recorded under intensive farming conditions. The mathematical model showed that the existing stocking rates in the Kohistan and Thar rangelands are very high and animals reproductive efficiencies are very low, which make whole system unsustainable in long-term. In order to integrate herbage growth pattern and livestock systems, calving/lambing times have to be moved to match the herbage growth.
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Kovaleski, Rafael Pacheco. "Tone mapping reverso de alta qualidade para uma ampla gama de exposições." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/152893.
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Operadores de tone mapping reverso (RTMOs) realçam imagens e vídeos de baixa faixa dinâmica para visualização em monitores de alta faixa dinâmica. Um problema comum encontrado por operadores anteriores é a maneira com que tratam conteúdo sub ou superexposto. Sob tais condições, eles podem não ser eficientes, e até mesmo causar perda e reversão de contraste visível. Apresentamos uma classe de operadores de tone mapping reverso, baseados no filtro bilateral cruzado (cross bilateral filter), capazes de gerar imagens HDR de alta qualidade. Experimentos utilizando uma métrica objetiva de avaliação de imagens demostram que nosso método é a única técnica capaz de realçar detalhes perceptíveis ao longo de uma grande gama de exposições de imagem, a qual inclui desde imagens subexpostas até imagens superexpostas.<br>Reverse tone mapping operators (rTMOs) enhance low-dynamic-range images and videos for display on high dynamic range monitors. A common problem faced by previous rTMOs is the handling of under or overexposed content. Under such conditions, they may not be effective, and even cause loss and reversal of visible contrast. We present a class of local rTMOs based on cross bilateral filtering that is capable of generating highquality HDR images and videos for a wide range of exposure conditions. Experiments performed using an objective image quality metric show that our approach is the only single technique available that can gracefully enhance perceived details across a large range of image exposures.
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Souza, Roberta de Freitas. "Sistema integrado de diagnose e recomendação (DRIS) para a cultura da soja convencional e transgênica na região sudeste de Goiás." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/3738.
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Previous issue date: 2013-02-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The Integrated System for Diagnosis and Recommendation (DRIS) has proven
its effectiveness as a method for determining nutritional status of crops. The objective of
this study was to establish norms in areas of conventional and transgenic soybean in
southeastern counties of the state of Goiás to create a database that will allow the use of
DRIS in the region. In addition, to diagnose most of the nutritional limiting factors for the
obtainment of high yields in soybeans by leaf analysis, performed by the methods of
Concentration Ranges and DRIS. Areas of commercial soybeans were selected in the
counties of Silvânia, Vianópolis and Luziania, GO, Brazil. In these areas, 103 sampling
plots of conventional and 260 plots of transgenic soybeans were demarcated. In each plot,
10 leaves were collected, removing the third expanded trifoliate with the petiole from the
tip of the main stem, at the beginning of the flowering stage to form a composite sample.
After physiological maturity, production samples were collected taking a meter of plants in
the rows, in five randomly selected points in each plot. Foliar analyzes were interpreted by
the methods of Concentration Ranges and DRIS. Norms for conventional and transgenic
soybean were established from a reference population with yield higher than 3,500 kg ha-1
of soybeans to calculate DRIS indices. The methods of diagnosis used in this work had in
common the nutrient N as the most limiting factor for conventional and transgenic
soybeans. Nutrients N, Cu and Zn were considered the most limiting factors for the two
types of soybeans by the Method of Concentration Ranges. The DRIS method diagnosed
nutrients N and P as the most limiting factors for the two types of soybeans and showed
higher sensitivity for diagnosing nutritional problems, especially for micronutrients.<br>O Sistema Integrado de Diagnose e Recomendação (DRIS) tem mostrado-se
eficiente como método para diagnóstico nutricional das culturas. O presente trabalho teve
como objetivo obter normas em áreas de produção comercial de soja convencional e
transgênica em municípios da região Sudeste do Estado de Goiás para criar um banco de
dados que permitirá a utilização do DRIS na região. E ainda, diagnosticar os fatores
nutricionais mais limitantes à obtenção de altas produtividades para a cultura da soja
através de análise foliar, interpretada pelos métodos das Faixas de Concentração e DRIS.
Foram selecionadas áreas de produção comercial de soja nos municípios de Silvânia,
Vianópolis e Luziânia, GO. Nessas áreas foram demarcadas 103 glebas de amostragem de
soja convencional e 260 glebas de soja transgênica. Em cada gleba, coletou-se 10 folhas de
soja, retirando-se o terceiro trifólio expandido com pecíolo, a partir da ponta da haste
principal, no início do florescimento para compor uma amostra composta. Posteriormente,
após a maturação fisiológica, foram colhidas amostras da produção, tomando um metro
linear de plantas nas linhas de plantio, em cinco pontos escolhidos aleatoriamente em cada
gleba de soja. As análises foliares foram interpretadas pelos métodos das Faixas de
Concentração e DRIS. Foram estabelecidas normas para soja convencional e soja
transgênica a partir de uma população referência com produtividade maior que 3.500 kg
ha-1 de grãos de soja para cálculo dos índices DRIS. Os métodos de diagnose avaliados
neste trabalho apresentaram em comum, o nutriente N, como mais limitante para soja
convencional e transgênica. Os nutrientes N, Cu e Zn foram considerados os mais
limitantes para os dois tipos de soja pelo método das Faixas de Concentração. O método
DRIS diagnosticou os nutrientes N e P como os mais limitantes para os dois tipo de soja e
ainda apresentou maior sensibilidade para diagnosticar problemas nutricionais,
especialmente, para micronutrientes
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Fonseca, Rodolpho Rodrigues 1987. "Desenvolvimento de um controlador Fuzzy - Split-range aplicado em um reator batelada para a produção de biodiese." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266608.
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Orientador: Flávio Vasconcelos da Silva<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química<br>Made available in DSpace on 2018-08-23T22:24:17Z (GMT). No. of bitstreams: 1
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Previous issue date: 2013<br>Resumo: Devido ao aumento da demanda nacional e mundial por combustíveis renováveis e novas tecnologias para melhoria de seus processos, é inegável a importância do desenvolvimento de novos controladores que possam garantir o funcionamento adequado destes sistemas. Neste contexto, este trabalho focou no desenvolvimento de um tipo de controlador não convencional baseado em inteligência artificial (Lógica Fuzzy) associado a uma estratégia Split-range para a manutenção da temperatura de reação de transesterificação do óleo de soja. Os ensaios foram conduzidos em um reator batelada totalmente instrumentado, monitorado e controlado via SCADA (Supervisory Control And Data Acquisition). Verificou-se que a melhor estratégia proposta para os sistemas de controle Fuzzy - Split-range na regulação da temperatura do reator foi a que empregou 147 regras sem a mistura de utilidades na jaqueta do reator, obtendo rápida estabilização da temperatura do reator, aproximadamente 15 minutos, e menor esforço de controle quando comparado às demais estratégias testadas. Como ferramentas de análise comparativa do sistema de controle foram utilizados os critérios de desempenho IAE, ISE e ITAE, além dos esforços de controle requeridos pelas válvulas durante os ensaios. Os resultados mostraram que a combinação Fuzzy - Split-range é viável no controle de temperatura, podendo ser estendida a demais processos industriais.<br>Abstract: In fact of national and international demand increasing for renewable fuels as biodiesel and also new technologies for process enhancement, it is worthy of attention the development of new controllers that guarantee adequate biodiesel production process control. In this context, this work applied the design of a non-conventional controller based on artificial intelligence (Fuzzy Logic) associated with Split-range strategy to regulate the temperature of soybean oil transesterification. The tests were conducted in a instrumented batch reactor, monitored and controlled by a SCADA (Supervisory Control And Data Acquisition) system. For the studied process control, the best combination set among the Fuzzy - Split-range strategies for the reactor's temperature control applied 147 set rules and no mixture of utilities in reactor's jacket. With fast temperature estabilization in almost 15 min, less control effort was required by the system among the strategies testeds. Performance criterions as IAE, ISE and ITAE were used to support comparative analysis, either control efforts by valves were used. The results show that Fuzzy - Split-range strategy is viable in biodiesel batch reactor temperature control, promising to application in others chemical processes.<br>Mestrado<br>Sistemas de Processos Quimicos e Informatica<br>Mestre em Engenharia Química
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Franck, Ian Christian. "An archaeological investigation of the Galene Lakes area in the Skagit Range of the North Cascade Mountains, Skagit Valley Park, British Columbia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0026/MQ51342.pdf.
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Anderson, Craig. "Modeling spatially-distributed snowpack properties to enhance our understanding of snow-elk relationships in the northern elk winter range, Yellowstone National Park." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p1430181.
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