221 |
Underground ice in permafrost, Mackenzie Delta-Tuktoyaktuk Peninsula, N.W.T.Gell, William Alan January 1976 (has links)
A study was made of the petrology of a variety of underground ice types in permafrost on the Tuktoyaktuk Peninsula and Pelly Island, Mackenzie Delta, N.W.T. Ice bodies of a considerable range of ages occur, including some deformed in the Wisconsin glaciation; also permafrost and ice is growing ab initio beneath recently drained lake bottoms. The spectrum of ice body size is also wide, extending from pore-sized particles to beds 25 m thick.
The major objective of the study was an understanding of the growth and deformation of such ice bodies from a petrologic viewpoint. Thus several bodies of known, recent, age -were analyzed in order to enumerate features typical of growth. This was possible for icing mounds, tension cracks and active layer ice which grew in winter 1973-74. Growth conditions were inferred in terms of water supply, freezing directions and rates, solute rejection (bubble formation) and crystal size, shape, lattice and dimensional orientation.
On the basis of this knowledge of growth features, older and larger ice bodies were studied, and post-solidification characteristics ware analyzed. Soma near-surface ice gave evidence of thermomigration of bubbles, but the major changes in fabric ware due to thermally and mechanically induced stresses. In the case of wedge ice, progressive changes in crystal size, shape, lattice and dimensional orientation ware recognized from the centre to the boundary of the wedge, due to recrystallization and grain growth associated with wedge development.
Segregated ice was studied ia pingos and an involuted hill. A pingo core with steeply-dipping beds showed little evidence of flow while broader pingo with a greater pore ice content had undergone some flow in the segregated ice layers. A range of fabrics was found in the involuted hill, optic axis orientations becoming increasingly concentrated normal to compositional layering while dimensional orientations tended towards parallelism with the layering in anticlines in the ice. The influence of bubbles on deformation is pointed out in that larger crystals occur in clear ice and thus have greater intracrystalline slip than in bubbly ice. Where a wedge penetrated such a fold, the fabric changed along the fold limb in a manner symmetrically related to the wedge.
Additionally, several near-surface ices ware studied and showed evidence of multiple growth periods, and multiple freezing directions, indicating that the ice grew in enclosed water in frozen material. Thus the complexity of freezing and melting histories may be recognized petro-graphically while it is not readily apparent in the field. / Arts, Faculty of / Geography, Department of / Graduate
|
222 |
An Analysis of E-Business Practices in the Arab Culture: Current Inhibitors and Future StrategiesYasin, Mahmoud M., Yavas, Ugur 13 February 2007 (has links)
Purpose – This paper aims to shed some light on E-business practices in the Arab culture. Design/methodology/approach – A qualitative approach based on observations. Findings – Identified several culturally-based factors which impair E-business practices in the Arab culture. Practical implications – Provides practical implications to Arab public and private sector leaders for enhancing E-business practices. Originality/value – Provides initial insight into the nature of E-business practices and their implications in the Arab culture.
|
223 |
Images of the Western Balkans in English translations of contemporary children's literatureTodorova, Marija 21 July 2015 (has links)
Since the late 1990s there has been an increasing interest in the representation of Balkan culture in the literary works of authors writing in English. Scholars (Bakić-Hayden 1995, Todorova 1997, Goldsworthy 1998, Norris 1999, Hammond 2010) have shown how literary representations of the Balkans have reflected and reinforced its stereotypical construction as Europe’s “dark and untamed Other. However, the contribution of translated literature in the representation of these images has rarely been considered, and in particular that of children’s literature has been seriously neglected. Thus, this study of images of the Western Balkans in translated children’s literature published in the period of 1990 2013, adds a hitherto uncharted literary terrain to the Balkanist discourses and helps shed a new and more complete light on the literary representations of the Balkans, and the Western Balkans more precisely. Children’s literature has been selected for the scope of this study due to its potential to transform and change deeply rooted stereotypes. The study approaches translations as framing and representation sites that contest or promote stereotypes in the global literary market. English has been selected as a target language due to its global position as а mediating language for the promotion of international literature, and with that also carrying stereotypes and transmitting them efficiently. This study looks at the images embedded in the texts, both source and target, and their representation in translation, including the translator’s interventions, but even more at the level of paratexts, and especially in the use of illustrations. It also examines adaptations accompanying the presentation of the translated book into the target society, such as documentaries, music scores and theatre performances. The discussion also considers how a book is selected for translation, and how different production participants contribute in the whole process of translation, including their motivations and goals, as well as their location. Using the methodology of imagology (Leerssen, 2007), and multimodal visual analysis (Kress and van Leeuwen, 1996, 2006), five case studies are elaborated, covering books from five different countries in the Western Balkans (Bosnia and Herzegovina, Croatia, Serbia, Macedonia, and Montenegro) and from five different types within children’s literature (non-fiction, anthology, novel, picturebook, and an e-book). The five case studies confirm the complexity of the topic at hand. Although there are no firm patterns in the production of English translations of contemporary children’s literature from the Western Balkans we can point out several observations. While the translations of the text, in most cases, closely follow the source text, with only slight interventions by some of the translators, the translated books differ quite significantly in their paratexts, especially illustrations and adaptations accompanying the book for the target culture. In terms of the representation of violence, as one of the predominant stereotypical characteristics of the Western Balkans, images vary from direct representation of violence to full erasure of violent acts. The discussion on presenting violence is analysed from two distinct points of view, the two traits of auto- and hetero- images as identifies in the case studies. In cases of self-representation, the case studies show a network of production participants in which the source author can be seen as the driving force in the process, usually recruiting friends and supporters to perform other tasks in the process translators, illustrators, publishers, etc. The auto-images take the form of ‘nesting’ Balkanisms, balancing (non)violent masculinities, or centring on love and humaneness. On the other hand, networks led by translators/editors located in the target culture will more often be motivated by commercial factors, along with representation of the source culture, thus either emphasizing the preconceived stereotypes of dominant violence in the Western Balkans, or turning towards globalizing the images of violence.
|
224 |
Study of Diurnal Cycle Variability of Planetary Boundary Layer Characteristics over the Red Sea and Arabian PeninsulaLi, Weigang 07 1900 (has links)
This
work
is
aimed
at
investigating
diurnal
cycle
variability
of
the
planetary
boundary
layer
characteristics
over
the
Arabian
Peninsula
and
the
Red
Sea
region.
To
fulfill
this
goal
the
downscaling
simulations
are
performed
using
Weather
Research
and
Forecasting
(WRF)
model.
We
analyze
planetary
boundary
layer
height,
latent
and
sensible
heat
fluxes,
and
surface
air
temperature.
The
model
results
are
compared
with
observations
in
different
areas,
for
different
seasons,
and
for
different
model
resolutions.
The
model
results
are
analyzed
in
order
to
better
quantify
the
diurnal
cycle
variability
over
the
Arabian
Peninsula
and
the
Red
Sea.
The
specific
features
of
this
region
are
investigated
and
discussed.
|
225 |
Hydrogeology and Hydrochemistry of The Delta Wadi El-Arish Area Sinai Peninsula, EgyptEl-Bihery, Medhat A. 01 May 1993 (has links)
Delta Wadi El-Arish, Sinai Peninsula, Egypt, forms one of the most important parts of Egypt for industrial and agricultural expansion projects. This study focuses on the hydrogeology and the hydrochemistry of the Quaternary aquifer in the delta Wadi El-Arish area. Accurate information about the groundwater characteristics of the Quaternary aquifer will allow implementation of a sound water management policy for the Wadi El-Arish area.
The objectives of this study include: 1) determining the relationships between groundwater extraction and water levels and water quality using water-level measurements, total extraction of the wells, and chemical analyses of water samples; 2) determining the direction of groundwater flow using water-level measurements; 3) calculating the hydraulic parameters of the Quaternary aquifer using pumping test data; and 4) determining the hydrochemical characteristics of groundwater in the Quaternary aquifer.
The results of this study indicate that:
1. Potentiometric surface elevations have decreased by an average of about 0.5 m.
2. Potentiometric surface elevations have decreased in response to an increase in extraction rates.
3. The transmissivity of the lower Pleistocene calcareous sandstone (kurkar) unit is higher than the transmissivity of the upper Pleistocene sand and gravel alluvial deposits.
4. Groundwater in the upper Pleistocene sand and gravel aquifer is augmented with groundwater leaking from the overlying Holocene sand deposits through the intervening sandy clay aquitard.
5. Total dissolved solids (TDS) concentrations have been increased by an average of about 1,500 ppm.
6. An increase in sea water intrusion in the northern part of the study area has occurred.
7. Groundwater in the calcareous sandstone kurkar is of lower quality than groundwater in the alluvium sand and gravel.
Management of the groundwater resources should include the following recommendations:
1. No new pumping wells should be drilled in the area.
2. Accurate estimates for the total recharge should be determined using a more detailed water budget for the delta Wadi El-Arish area.
4. The operation of wells should be managed by an automatic control system.
|
226 |
Mapping Sociocultural Values of Visitors on the Olympic Peninsula, WashingtonTodd, Alexa North 20 February 2014 (has links)
Contested land-management plans make spatial data about values that people attach to the landscape necessary for federal land management. The study area for this project is the Olympic Peninsula, Washington, an area that is divided by a complex mosaic of land jurisdictions, including public lands administered by the National Park Service, National Forest Service, and Washington State, as well as interspersed tribal and private landholdings surrounding the perimeter. During the summer of 2012, I collected map and survey data from visitors at fourteen popular destinations around the Olympic Peninsula, including visitor centers, campgrounds, trail access points, and a ferry. Three research objectives were evaluated in my thesis: 1) determine a general typology of visitors, 2) understand what values and activities visitors associate with places in the peninsula, and 3) compare visitor data with resident data from the Human Ecology Mapping Project (HEM), a collaboration between the US Forest Service Pacific Northwest Research Station, the Institute of Culture and Ecology, and Portland State University.
Analysis using ArcGIS included density and density hot spot calculations for a composite of the data as well as subsets based on types of visitors and individual values and activities. A majority of the participants were older males with higher education. Results indicate that visitors with different levels of familiarity spend time in different parts of the Peninsula. Aesthetic, recreation, and wilderness are the values most often included in the survey; hiking, non-cardio recreation, and sociocultural are the activity groups most often included in the survey. Visitors primarily mark places in Olympic National Park. Visitors, including those who live locally, responded in strikingly different ways than residents who participated in HEM. This research produced expected results that not only substantiate knowledge about specific places in the Olympic Peninsula, but also support theories about environmental cognition.
|
227 |
Korelace mezi hegemonickou soutěží USA a Číny a rozmístěním THAAD na Korejském poloostrově / Correlation between US and China's hegemonic competition and the deployment of THAAD on Korean PeninsulaKim, Byung Ju January 2021 (has links)
Despite the Korean public and China's opposition, Terminal High Altitude Area Defence (THAAD) was deployed in South Korea in 2017. The U.S. government and the South Korean government claim that the THAAD installation is only for the safety of South Korea and the Korean Peninsula. However, the study questioned the claim, assuming that there may be another reason behind the deployment of THAAD regarding the U.S. pursuing its interests in the U.S. - China hegemonic race. The study uses Olganski's power transition theory to analyze the current situation and to find out the correlation between THAAD and U.S. - China hegemony. According to the analysis, China still seems to be far from catching up with the U.S., but in some areas it is quite difficult to determine any states' absolute level of competitiveness, and China even has an upper hand in trade. In this situation, China is dissatisfied with the U.S.-led international order, and the possibility of a power transition rises. Therefore, the paper attempts to verify that the deployment of THAAD missiles on the Korean Peninsula, which greatly helps the U.S. MD(Missile Defense) system, was a strategic choice for the U.S. to hinder China's growth.
|
228 |
Late quaternary events in northern Ungava, QuebecMatthews, Barry. January 1968 (has links)
No description available.
|
229 |
The Dardanelles operation; the French role,Cassar, George H. January 1968 (has links)
No description available.
|
230 |
Testing The Peninsula Effect: Does It Affect Freshwater Crustaceans Inhabiting Ephemeral Wetlands On Florida's Ridges?Rinne, Debra 01 January 2006 (has links)
The peninsula effect is a pattern of diversity wherein species richness decreases along a peninsula from base to tip and is attributed to three mechanisms: historical processes, habitat gradients, and immigration-extinction equilibrium. Numerous studies have reported conflicting results involving the existence, cause, and validity of the peninsula effect in part because they did not account for effects of history or habitat on species richness patterns and because most previous research focused on organisms that actively disperse, which could confound results with behavioral habitat selection. Florida poses an excellent opportunity to study the peninsula effect because of its geological history and its unique ridges have similar histories (e.g. age, elevation, and sediment). Habitat changes down the peninsula, from a warm temperate climate in the north to a subtropical climate in the south. I studied freshwater crustaceans in isolated wetlands because crustaceans are diverse and disperse passively among these discrete habitats. My study design and statistical analyses controlled for two of the three mechanisms (habitat and history) that may generate a peninsula effect to better test for the third hypothesis (immigration-extinction equilibrium) on the Florida peninsula. Thirty-one wetlands were sampled for crustaceans monthly from November 2004 through April 2005, or until a site dried. Human disturbance was minimized by choosing isolated, ephemeral wetlands located within state reserves, parks, and forests located on four major ridges: Trail, Brooksville, Mount Dora and Lake Wales. I measured several environmental variables to assess habitat variation among sites. Limnological parameters included temperature, pH, dissolved oxygen, conductivity, chlorophyll á, pheophytin, total nitrogen, total phosphorus, and total hardness. Other habitat variables included surface area, distance to nearest water body, fish presence or absence, hydroperiod, total transmitted light and canopy openness. Crustacean species were identified to the lowest practical taxonomic level (typically species) and recorded as present or absent. A total of 53 different crustaceans were identified, including 41 cladocerans, 10 copepods, and 2 ostracods. In a multiple regression, environmental variables and sampling effort accounted for 57% of the variation in species richness. Regression of remaining variation (residuals) against latitude, which measures position along the peninsula, was not statistically significant. The same pattern was obtained when the sequence of regressions was reversed. Therefore, the peninsula effect does affect the species richness of freshwater crustaceans inhabiting ephemeral wetlands on Florida's ridges. Instead, variation in species richness was determined mainly by habitat differences, particularly the complex interaction of phosphorus levels, isolation, fish presence or absence, and hydroperiod. This study may serve as a model for more thorough analyses of mechanisms (history, habitat, and immigration-extinction) of a peninsula effect in other taxa.
|
Page generated in 0.0805 seconds