Yang, Tao, Jiang, Shao-Yong, Yang, Jing-Hong, Ge, Lu, Wu, Neng-You, Zhang, Guang-Xue, Liu, Jian

The northern margin of South China Sea contains several favorable areas for occurrence of gas hydrate. In this study, we collected pore water samples in two piston cores (X-01 and D-01) from Xisha Trough and Dongsha area, respectively, and the concentrations of sulfate and carbon isotopic compositions of dissolved inorganic carbon (DIC) were measured. The results showed different geochemical characteristics in these two sites. The X-01 core shows relatively constant δ13C-DIC values and sulfate c...

Muir, Jennifer

In this thesis project I explore economically disadvantaged young women's responses to notions of ideal and deviant femininity circulating within contemporary mass media. Specifically, I examine six young women's expressed accounts and critiques of particular forms of femininity in relation to their own experiences of social exclusion. Additionally, and drawing upon an experimental adaptation of Walter Benjamin's montage method, I assess the symbolic links between mass media representations of f...

Wangensteen Fuentes, Owen S.

The black sea urchin Arbacia lixula (Linnaeus, 1758) is one of the most abundant sea urchins in the Mediterranean. Despite its increasingly recognized ecological significance, including the ability to create and maintain barren zones of decreased diversity and productivity, it has been traditionally less studied than the Atlanto-Mediterranean edible sea urchin Paracentrotus lividus. This thesis is aimed at studying the factors affecting the phylogeography, trophic ecology and biology of the bla...

Huseynov, Afgan

The Haymana basin in Central Anatolia (Turkey) formed on a Late Cretaceous to Middle Eocene fore &amp / #8211 / arc accretionary wedge. The aim of this study is to investigate the sedimentary cyclicity and depositional sequences in the Upper Cretaceous clastic successions of the Haymana basin. To be able to achieve this objective, a 250 m stratigraphic section, which is mainly composed of siliciclastics has been measured in the Haymana Basin. In this study, detailed lithofacies analyses were per...

Kaya, Zehra Gozde

In this study, a method is proposed for decision making for multiobjective recreational areas, by using multi attribute decision making rules within GIS. The method provides integration of ecological, sociocultural and economic considerations of an ecologically valuable area in a systematic way. The first stage of the methodology includes determination of suitable areas for three usages of forest area / outdoor recreation, timber production and protection needed areas. The second stage comprises...

Jurczynski, Kerstin

Tuberculosis is a widely spread zoonotic disease caused by acid-fast bacteria of the Mycobacterium tuberculosis complex in a variety of mammalian species. In pinnipeds, tuberculosis has been reported in different captive and wild sea lions and fur seals. The causative agent, Mycobacterium pinnipedii, is part of the M. tuberculosis complex and has shown pathogenicity in other mammalian species including human beings. Since 2000 the Heidelberg zoo has been dealing with tuberculosis in its collecti...

Cherian, Ribu, Venkataraman, Chandra, Ramachandran, S., Quaas, Johannes, Kedia, Sumita

In this paper we analyse aerosol loading and its direct radiative effects over the Bay of Bengal (BoB) and Arabian Sea (AS) regions for the Integrated Campaign on Aerosols, gases and Radiation Budget (ICARB) undertaken during 2006, using satellite data from the MODerate Resolution Imaging Spectroradiometer (MODIS) on board the Terra and Aqua satellites, the Aerosol Index from the Ozone Monitoring Instrument (OMI) on board the Aura satellite, and the European-Community Hamburg (ECHAM5.5) general ...

Regiane Corrêa de Oliveira Ramos

This doctoral dissertation focuses on Amitav Ghoshs Sea of Poppies (2008) to investigate, from a postcolonial perspective, the way in which the writer deconstructs gender in the nineteenth-century India. In Chapter I, I analyze men and women within the Indian familial space in the nineteenth century, demonstrating how both are subjected to the disempowering effects of traditional rituals (such as sati), structures of Brahminical morality and patriarchal violence. The main character pair Deeti a...

Emilia, Eriksson

The consequences due to sea level rise are many, and will affect the environment and societies all around the world. There is uncertainty about how much and how quickly the sea will rise. Despite the uncertainties, society must be adapted to a changing climate. The climate change adaptation work is relatively new in Sweden, and there are still uncertainties about how this work should be carried out, and by whom. This thesis examines to what degree the Swedish parliament parties’ view on how to p...

Tzh-Huan Lin, 林子桓

碩士 / 國立臺灣大學 / 數學研究所 / 97 / The best suggested way to find secure elliptic curves is point-counting. So far Schoof-Elkies-Atkin algorithm (SEA algorithm) is the most efficient point-counting algorithm for elliptic curves over prime fields. Lercier proposed an algorithm to compute isogenies in GF(2^n) such that SEA algorithm can be used for binary case. In this thesis we will follow Lericier''s approach to implement SEA algorithm computing the order of an elliptic curve over binary fields.

Zilmer, Kristel

Univ., Diss., 2005--Tartu

Climate change will expose sea turtle nests to higher temperatures and more storms; both may negatively impact sea turtle nest success. In this study, unhatched eggs were collected from the Boca Raton, Florida beach and developmental stage at embryonic death determined. Elevated nest temperatures increased embryonic mortality, and the most significant relationship was between mortality and the percent of time embryos were exposed to temperatures above 34°C. Loggerhead turtles exhibited high...

Kraft, Matthew

Sediment accumulated in lakes stores valuable information about past environments and paleoclimatological conditions. Cores previously obtained from Saint Albans Bay, located in the Northeast Arm of Lake Champlain, VT record the transition from the Champlain Sea to Lake Champlain. Belrose (2015) documented the presence of a peat horizon separating the sediments of the Champlain Sea from those of Lake Champlain. Initially, this layer was thought to comprise the transition from the marine environm...

Grandquist, Joshua Ryan

Currently, there exists a great deal of uncertainty regarding atmospheric aerosols and the role that they play within the Earth’s atmosphere. It is known that atmospheric aerosols can play a role in the Earth’s climate by scattering and absorbing solar radiation or acting as a cloud condensation nuclei. The purpose of this work is to obtain an improved understanding of the chemistry of atmospheric aerosols to better determine their impacts the environment, air quality, and climate. This work rev...

Takai, Tomohiro

No description available.

van Heteren, S., Meekes, J.A.C., Bakker, M.A.J., Gaffney, Vincent L., Fitch, Simon, Gearey, B.R., Paap, B.F.

No / The North Sea subsurface shows the marks of long-term tectonic subsidence. Much of it contains a thick record of glacial and interglacial deposits and landscapes, formed during multiple glacial cycles and the associated regressions and transgressions during the past two million years. At times of lower sea level than today, areas that are presently submerged were fertile lowlands more favourable for hunting and gathering than the surrounding upland. These drowned lowlands are not captured b...

Core, Amanda B

Thesis (Ph.D.)--Boston University PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you. / The sea urchin embryo has recently emerged as a powerful model organism for systems-level studies aimed at unde...

Sabbagh, Eman I.

Heterotrophic bacterioplankton plays a pivotal role in marine food webs and biogeochemical cycling. However, their temporal dynamics and underlying factors are still poorly understood in many regions, including the tropical waters of the Red Sea. The main goal of the MS project was to describe the seasonality and assess the impact of top-down controls (viruses and heterotrophic nanoflagellates) in parallel to bottom-up controls (substrate availability) on coastal bacterioplankton on a weekly bas...

Zarokanellos, Nikolaos

The existing observations and model simulations indicate that mesoscale eddies and the Eastern Boundary Current (EBC) have a significant role in the complex circulation of the Red Sea. However, a full understanding of the processes that contribute to the physics and biological responses of the central Red Sea (CRS) has been limited due to the lack of sustained in-situ observations. In this dissertation study, in-situ observations extending over a thirty-three month period from spring 2013 t...

Fitch, Simon

No / The submerged landscape of the North Sea has long been known by archaeologists as an area of Mesolithic occupation, yet despite this the nature of the occupation of this landscape has remained poorly understood due to the submergence of the landscape. This paper presents the results of a “first pass" study to produce an initial model of the carrying capacity of the landscape and its associated demography. This model seeks to explore the impacts of sea level driven landscape change upon the ...

Gearey, B.J., Hopla, E.-J., Boomer, I., Smith, D., Marshall, P., Fitch, Simon, Griffiths, S., Tapping, D.R.

No / Abstract: This paper focuses on the submerged landscapes of the southern North Sea, an area often referred to as Doggerland, which was inundated as a result of relative sea-level rise at the start of the Holocene. The timing, pattern and process of environmental changes and the implica­ tions for prehistoric (Mesolithic) human communities living in this area have long been a subject of debate and discussion. Recent developments in marine geophysics have pemtitted the mapping of the pre-sub...

Nelson Ribeiro Pires

No description available.

Agaiby, Elizabeth

No description available.

Zilinskaite, Emilija

The Baltic Sea is the most polluted sea in the world. Its hydrological conditions and ongoing eutrophication are a high threat for marine biodiversity and ecosystems. Additionally, eutrophication has negative effects on the wellbeing of countries and their societies in the Baltic Sea Region (BSR). Actions to mitigate eutrophication in the Baltic Sea have been implemented through on-land measures in the last 40 years. Although the improvement in the marine environment is notable, it happens very ...

Zamer, William Ernest

No description available.

Brennan, Joseph

In organisms from insects to vertebrates, Toll-like receptors (TLRs) are primary pathogen detectors that activate downstream pathways, specifically those that direct expression of innate immune effector genes. TLRs also have roles in development in many species. The sea anemone Nematostella vectensis is a useful cnidarian model to study the origins of TLR signaling because its genome encodes a single TLR and homologs of many downstream signaling components, including the NF-κB pathway. In this d...

Gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) satellite measuring system show that Greenland is losing mass as water is lost to the ocean. Past work has suggested that the freshwater flux from Greenland, particularly along the southeastern coast, may be affecting the Labrador Sea deep convection, a major driver of the world deep ocean circulation. The main objectives of this thesis are to examine (1) the relationship between Greenland freshwater flux and the near-...

An accurate representation of air-sea interaction is crucial to the accurate numerical prediction of ocean, weather, and climate. It is known that sea surface temperature (SST) gradients and surface currents in the oceanic mesoscale regime significantly affect air-sea fluxes of momentum and heat, and the mesoscale-modified air-sea fluxes also influence the ocean dynamics on various scales. Previous studies found that resolving the mutual feedbacks between mesoscale processes an...

Clonality is the general term that encompasses all manner of pinching, splitting, budding, and fragmenting behaviors by which organisms divide their somatic body tissues into more or less independent units. It can be as straight forward as fragments of a sponge surviving after being rent apart by a hurricane or as convoluted as the telescoping generations of parthenogenic aphids. Clonality is a widespread feature of animal life cycles and the degree of clonal investment is expected to affect eve...

A diagnostic study of rainfall variability in Africa in the area from 5oS to 10oN and from 10oE to 30oE was carried out using a gauge rainfall data. Emphasis was placed on determining the time-scales of interannual variability, the characteristics of interseasonal fluctuations, and on regionalization of the data. The latter was used in order to reduce the number of regions utilized for studying this variability in the context of sea-surface temperature fluctuations, El Nino/La Nina, and atmosphe...

Florida is typically considered to be tectonically stable and representative of global eustatic sea level with little evidence for any anomalous local subsidence or uplift during the late Cenozoic. Sea level during most of that time did not significantly rise above the present level. However, paleoshoreline features near the border of northern Florida and southern Georgia have been found to contain marine fossils of Pleistocene age at elevations of between 42 and 49 m above mean sea level, sugge...

The deep-sea, soft-bottom habitat is considered the largest ecosystem on Earth, yet little is known about the biogeography of the infauna. This dissertation examines the species' ranges of the meiofaunal taxon Harpacticoida (Crustacea: Copepoda) and the macrofaunal abundance and similarity for the continental rise off the west coast of the United States. Specifically, I examined these fauna at two depths (2700 and 3700 m) and at four latitudes (approximately 34 N, 37 N, 40 N, and 43 N). To exami...

Moon, Harry Edward

No description available.

Segal, Rebecca

This thesis examines the role of remote sensing technology in providing information to northern residents of Kugluktuk and Cambridge Bay, Kitikmeot region of Nunavut, Western Canadian Arctic, for the purpose of improving sea ice trafficability and safety. The main objectives of this thesis include 1) the identification of northern community sea ice information needs that can be addressed using remote sensing, and 2) the creation of remote sensing-based products showing sea ice surface roughness ...

Invasive fire ants are aggressive predators of ground nesting birds and reptiles and are spreading rapidly throughout tropical and temperate climates. Fire ants have been known to prey on a variety of reptile species, including threatened loggerhead sea turtles. The granular fire ant bait AMDRO® is being used on sea turtle nesting beaches to protect nests and hatchlings from these predators, however no studies have been conducted to thoroughly assess its effect on any reptile species. In this fi...

Sea turtle hatchlings emerge from their nest and quickly crawl to the surf. During the crawl, hatchlings may encounter threats, biotic and abiotic, which can affect their ability to successfully reach the surf. The impact of these threats on hatchling survival during that crawl is largely undocumented. Current methods used to estimate cohort recruitment rely heavily on nest inventory data. This method, however, does not account for post-emergent hatchling mortality that occurs during the crawl. ...

Heikinniemi-Sandstedt, Therese

<p>Betygsdatum 2019-08-15</p>

Kaňková, Michaela

This Master's thesis is focusing on why the United States of America never ratified the United Nations Convention on the Law of the Sea. It is analysing the prevailing arguments which were used in 1982, which led to President Ronald Reagan never ratifying the Convention. As well as why the same thing happened in 1994 when the United Nations agreed on an Update to the Convention. Then the thesis is focusing on crucial parts of the Convention, which are part of the arguments for or against the rat...

Lan, Yu-Ting, 藍于婷

碩士 / 國立清華大學 / 國際專業管理碩士班 / 105 / abstract hide

Seney, Erin E.

The Chesapeake Bay and coastal waters of Virginia, U.S.A. serve as foraging grounds for loggerhead (Caretta caretta) and Kemp’s ridley (Lepidochelys kempi) sea turtles from approximately May to October each year. Both loggerheads and Kemp’s ridleys are known to feed primarily on benthic invertebrates as juveniles and adults, but specific prey preferences vary between geographic regions. The Virginia Institute of Marine Science Sea Turtle Program has collected diet data and gut samples from stran...

Jones, William Mason

Detailed physical profile of eight transplanted loggerhead sea turtle, Caretta caretta, nests were obtained from Virginia and northeastern North Carolina and reburied in Back Bay National Wildlife Refuge (BBNWR), Virginia Beach, Virginia during the summers of 1987, '88, and '89 to determine if the physical location of the egg within the nest had an affect on sex determination. Transplanted nests were reburied in sandy substrate at a depth of 15-60 em on south facing dunes, and a Campbell Scienti...

Isdell, Robert Earl

Throughout the salt marshes of the US Atlantic Coast, ribbed mussels (Geukensia demissa, Dillwyn, 1817) and smooth cordgrass (Spartina alterniflora Loisel) form an important mutualistic relationship. Spartina provides habitat and promotes settling of ribbed mussels, which, in turn, stabilize and fertilize the Spartina and sediment. This relationship, however, is at risk of interruption due to sea level rise, erosion, and coastal development. Among the most at-risk segments of the marsh, the fron...

Richardson, Emily

The supply of new individuals into a population is one of the most important factors impacting species distributions and ecological interactions within a community. For marine invertebrates with complex life cycles, the supply of new individuals into a population can be influenced by factors experienced throughout their life history—before, during, or after metamorphosis. In recent years, scientists have begun to take a more holistic approach to understanding marine population assemblages by con...

Carnegie, Ryan B.

No description available.

Tucker, John Wotring, Jr

The objective of this study was a comparison of developmental changes and energy utilization in eggs, unfed larvae, and fed larvae of two marine fish species that both have pelagic early stages, but differ in phylogeny and early life ecology. The bay anchovy (Anchoa mitchilli), a clupeiform, spawns in estuaries and shallow coastal waters. The black sea bass (Centropristis striata striata), a perciform, spawns offshore at 15-50 m depths. Densities of zooplankton eaten by first-feeding fish larvae...

Kaufman, Daniel Edward

As Earth’s climate changes, polar environments experience a disproportionate share of extreme shifts. Because the Ross Sea shelf has the highest annual productivity of any Antarctic continental shelf, this region is of particular interest when striving to characterize current and future changes in Antarctic systems. However, understanding of mesoscale variability of biogeochemical patterns in the Ross Sea and how this variability affects assemblage dynamics is incomplete. Furthermore, it is unkn...

Stone, Joshua Paul

Gelatinous zooplankton (GZ; cnidarians, ctenophores, and pelagic tunicates) periodically are the dominant members of the zooplankton throughout the majority of the world’s oceans. their unique body plans and life cycles allow them to rapidly take advantage of favorable environmental conditions, which has far-ranging consequences for food web dynamics and biogeochemical cycles. GZ populations have been speculated to respond to anthropogenic changes, but few long-term studies exist to test this hy...

Pruitt, Hollis E.

...the early people of Gloucester County were English gentlemen and ladies... Many of these fine old families continued wealthy for generations, until about seventy years ago, when a terrible war, known as the War between the States,... deprived them and their present day descendents of their property and wealth, as well as their Negro slaves who were freed at the time of this war.(Gray 66).;All across the post-Civil War South, the newly freed African Diaspora struggled to find ways to maintain ...

Morey, Laura Ellen

No description available.

Lange, John David

No description available.