Barton, Karen Samantha.

Thesis (Ph. D.)--University of Arizona, 2000. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 297-324).

Taylor, Anne Marie, n/a

The relationships between metal exposure, dose and response were investigated in two sediment dwelling marine bivalves: a deposit feeder Tellina deltoidalis and a filter feeder Anadara trapezia. The bivalves were exposed in the laboratory to individual metal spiked sediments: Cadmium 10 and 50 Ag/g; lead 100 and 300 Ag/g; selenium 5 and 20 Ag/g dry mass, T. deltoidalis for 28 days A. trapezia for 56 days. A. trapezia was also exposed in the laboratory for 56 days to sediments from three sites al...

Wikström, Sofia A.

<p>Biological invasions are an important issue of global change and an increased understanding of invasion processes is of crucial importance for both conservation managers and international trade. In this thesis, I have studied the invasion of the brown seaweed <i>Fucus evanescens</i>, to investigate the fate and effect of a perennial, habitat-forming seaweed introduced to a coastal ecosystem. A long-term study of the spread of <i>F. evanescens</i> in Öresund (southern Sweden) showed that the s...

Sporre, Moa

A study of air mass origin’s effect on marine stratus and stratocumulus clouds has been performed on clouds north of Scandinavia between 2000 and 2004. The aerosol number size distribution of the air masses has been obtained from measurements in northern Finland. A trajectory model has been used to calculate trajectories to and from the measurement stations. The back trajectories were calculated using the measurement site as receptor to make sure the air masses had the right origin, and forward ...

Eipp, Thomas B.

Currently, the Department of Defense DoD uses several Precision Landing Systems (PLS) including the Instrument Landing System (ILS), Automatic Carrier Landing System (ACLS), and Precision Approach Radar (PAR). Each system requires different avionics, ground station equipment and are not universally implemented in the different services. This has lead to interoperability problems among the services. Additionally, these landing systems have numerous deficiencies, which include deployablility, manp...

Wrohan, Ian A.

During the summers of 2007 and 2008, we determined net, new and regenerated primary production and phytoplankton biomass in Arctic and Sub-Arctic marine waters around North America. Carbon and nitrogen uptake rates were measured using the 15N and 13C tracer technique in 24-hr on-deck incubations, and phytoplankton biomass was determined by in vitro fluorometry. Average net primary production was highest in the north Bering and south Chukchi Seas (998 mg C m-2 d-1) and defined as primarily new pr...

Dickinson, Charles R.

This thesis is a continuation of previous work to apply modern multiparameter estimation techniques to the problem of estimating attrition rates for a large number of small inventory cells in manpower planning models used by the U.S. Marine Corps. The main advances involve the promising introduction of empirical Bayes (non-constant shrinkage) techniques, recognition of the non symmetric nature of the errors with a response to this, and some insight into all aggregation plans that should help pro...

Greenauer, Michael A.

Research was conducted to demonstrate the applicability of artificial intelligence techniques to the problem of estimating blood resupply requirements in Navy medical units supporting Marine Corps commands engaged in combat operations. Prototyping methodology was used to develop a combination expert system and decision support system, termed an expert support system, which was named HEMOS (Hemologic Expert Support System for Marine Corps Operational Support). The prototype system was tested and ...

Uraz, Emre

Transportation and installation of offshore wind turbines (Tower, Nacelle and Rotor) is a complete process conducted over several phases, usually in sequence. There are several factors that can turn this process into a challenge. These factors can either be due to offshore site conditions or the technical limitations of the installation vessels. Each project has its own characteristic parameters and requires a unique optimum solution. This paper identifies the dynamics of the installation proces...

Sabatini, Gino.

No description available.

Skouris, Nicolas

The acyl-CoA reductase, LuxC, isolated from Photobacterium phosphoreum , has been found to have a low sequence identity to aldehyde dehydrogenases, particularly in the more conserved regions (i.e. motifs) containing the active site residues. Mutational studies on residues involved in cofactor binding and in catalysis conserved in both the LuxC enzyme and in Vibrio harveyi aldehyde dehydrogenase have shown that these residues may play similar roles as the effects of mutation on the kinetic ...

Martínek, Karel

Přírodovědecká fakulta University Karlovy v Praze Ústav geologie a paleontologie Charles University in Prague, Faculty of Science Institute of Geology and Palaeontology Klimatický, tektonický a provenienční záznam svrchnopaleozoických kontinentálních sedimentů podkrkonošské pánve Climatic, tectonic and provenance record of the Upper Palaeozoic non-marine deposits of the Krkonoše Piedmont Basin. Mgr. Karel Martínek Autoreferát doktorské disertační práce Summary of the PhD Thesis školitel (supervi...

Bertrand, Erin Marie

Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2012. / Cataloged from PDF version of thesis. / Includes bibliographical references. / The distribution and magnitude of marine primary production helps determine the ocean's role in global carbon cycling. Constraining factors that impact this productivity and elucidating selective pressures that drive the compo...

Barrick, Andrew

Les nanotechnologies représentent un domaine émergent considéré comme la révolution industrielle du 21ème siècle. Les nanomatériaux manufacturés (NMs) vont se retrouver inévitablement dans l’environnement aquatique. Dans un contexte de règlementation des NMs, l’objectif est d’utiliser des approches de lecture croisée pour regrouper les NMs selon différents critères. Pour cela, l’utilisation du criblage à haut debit représente un grand interêt puisque cet outil permet de tester un grand nombre de...

Castañón, Laura (Laura Anne)

Thesis: S.M. in Science Writing, Massachusetts Institute of Technology, Department of Comparative Media Studies/Writing, 2018. / Cataloged from PDF version of thesis. / Includes bibliographical references (pages 21-26). / Cabo Pulmo National Park is a 27-square mile protected area in the Gulf of California, near the southern end of Mexico's Baja Peninsula. The park surrounds one of the oldest coral reefs on the western coast of North America. Once damaged and depleted by overfishing, the reef ha...

Williams, Clare Margaret

Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 2007. / Includes bibliographical references. / The origin of symmetric alternating magnetic polarity stripes on the seafloor is investigated in two marine environments; along the ridge axis of the fast spreading East Pacific Rise (EPR) (90 25'-90 55'N) and at Kane Megamullion (KMM) (230 40'N), near the intersect...

Mukundan, Harish

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. / Includes bibliographical references (p. 199-205). / Vortex-induced vibration (VIV) of long flexible cylindrical structures enduring ocean currents is ubiquitous in the offshore industry. Though significant effort has gone into understanding this complicated fluid-structure interaction problem, major challenges remain in modeling and predicting the response of such structures. The work presented in th...

Zakem, Emily Juliette

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2017. / Cataloged from PDF version of thesis. / Includes bibliographical references (pages 173-193). / This thesis posits that understanding the controls on microbially-mediated marine biogeochemical cycling requires a mechanistic description of microbial activity in biogeochemical models. In the work here, the diverse microbial community is resolved using metabolic functional types, ...

阮風雲

碩士 / 美和科技大學 / 健康與生技產業研究所 / 100 / Phu Quoc is one of the large island of Kien Giang province located in the eastern of Thailand, west of Vietnam, 46 km from Ha Tien and 120 km from Rach Gia city. Phu Quoc MPA was established under Decision No. 19/QD-UBND, dated 03 January 2007 of presidents of People's Committee in Kien Giang province including two areas: northeast, southeast of Phu Quoc island and south of An Thoi archipelago with a total surface area of the MPA is 26863.17 ha. Seagrass conserva...

Mensens, Christoph

La biodiversité est de plus en plus modifiée par les activités humaines, ce qui a conduit à des recherches considérables sur l'effet de la biodiversité sur le fonctionnement des écosystèmes. Ces recherches ont cependant rarement inclu le stress anthropogénique qui cause la perte de biodiversité. Cette thèse analyse l'impact du stress (pesticides et métaux lourds) sur la relation entre la biodiversité et le fonctionnement des écosystèmes à la base de la chaîne alimentaire marine, avec des product...

Flori, Serena

Les microalgues ont développé des approches distinctes pour moduler l'absorption de la lumière et son utilisation par leurs photosystèmes en réponse à des stimuli environnementaux. Dans ce rapport de Thèse je présente les différentes stratégies employées par une algue d'eau douce (Chlamydomonas reinhardtii) et une algue marine (Phaeodactylum tricornutum) pour optimiser leur acclimatation à l'environnement.Dans la première partie de ce rapport, je propose un modèle de cellules entières de la diat...

Grébert, Théophile

Les picocyanobactéries marines Synechococcus sont les seconds organismes photosynthétiques les plus abondants sur Terre. Elles présentent une grande diversité pigmentaire du fait de différences dans la composition de leur antenne collectrice de lumière (phycobilisome), ce qui leur permet d'utiliser efficacement une grande partie du spectre lumineux. Cependant, l'évolution, l'écologie et les bases moléculaires de cette diversité restent mal comprises. La comparaison d'une région génomique impliqu...

Nirmal Raj, Jenifer

L’amidon s’accumule en grains insolubles et semi-cristallins dans d’une part le cytoplasme des algues rouges et des glaucophytes et dans d’autre part les chloroplastes des algues et plantes vertes. Vu la distribution séléctive de l’amidon dans ces trois lignées issues de l’endosymbiose primaire du plaste, nous avons recherché lequel des deux partenaires de cette dernière est responsable de l’origine de cette structure. Nous avons, dans notre travail, contribué à l’identification de polysaccharid...

Miller, Sonja,

Thesis (Ph.D.)--Victoria University of Wellington, 2008. / Includes bibliographical references.

Garcia, Richard D. Sloan, Joshua K.

Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, June 2008. / Thesis Advisor(s): Cook, Glen. "June 2008." Description based on title screen as viewed on August 22, 2008. Includes bibliographical references (p. 131-137). Also available in print.

Bahi, Muhammad

No description available.

Zendah, Imene

No description available.

Stacey, Bruce M.

No description available.

Leighton, Joshua (Joshua C.)

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013. / This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. / Cataloged from PDF version of thesis. / Includes bibliographical references (p. 68-70). / Technological improvements over the past decade have led to the widespread use of autonomous surface and underwater vehicles for data collection in marine environment...

Munoz, Julie

Les pyrrole-2-aminoimidazoles (P-2-AIs) sont des métabolites secondaires spécifiques des éponges marines. Ils sont principalement rencontrés dans les familles d’éponge Agelasidae, Halichondridae et Axinellidae. Ainsi l’étude chimique de l’éponge marine Axinella donnani dans le but d’isoler de nouveaux composés P-2-AIs a-t-elle permis un élargissement des connaissances au niveau de la diversité de la famille ainsi qu’une meilleure compréhension de leur biogénèse. Deux lots de cette éponge ont été...

Costa, Andrea

La connectivité marine est le transfert de larves et/ou d'individus entre des habitats marins éloignés. Grâce à la connectivité, les populations marines éloignées peuvent faire face à la pression de l'habitat en s'appuyant sur le transfert qui vient des populations éloignées de la même espèce. Le transfert entre les populations éloignées dans l'océan est possible par le transport dû aux courants. Cependant, il est pas encore clair si le champ des courants détermine totalement la persistance des ...

Brett, Bridget C

Thesis (S.M. in Ocean Systems Management)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008. / This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. / Includes bibliographical references (leaves 89-97). / The growing global concern over ship emissions in recent years has driven policy change at the international level toward more stringent vessel emissions standards. The polic...

Young, Ryan Mark

This thesis is divided into two parts, assessing marine and synthetic compounds active firstly against Plasmodium falciparum (Chapter 3 and 4) and secondly active against methicillin resistant Staphylococcus aureus (MRSA, Chapter 5). In Chapter 3 the synthesis of nine new tricyclic podocarpanes (3.203-3.207 and 3.209-3.212) from the diterpene (+)-manool is described. Initial SAR study of synthetic podocarpanes concluded that the most active compound was a C-13 phenyl substituted podocarpane (3.2...

D'Souza, Nicole

The large cosmopolitan sea hare Bursatella leachii is a common resident in Eastern Cape river mouths during summer and late autumn where they congregate in beds of Zostera capensis to breed. In this thesis, the previously known toxic formamide marine secondary metabolite (-)-bursatellin (2.2), which may deter predators of South African specimens of the globally distributed sea hare Bursatella leachii, was isolated and identified (Chapter 2). There have been no previous chemical ecology studies o...

Rogers, Janice,

Thesis (B. Sc.(Hons.))--University of Adelaide, Dept. of Geology and Geophysics, 1997? / Five folded Range Charts enclosed in pocket inside back cover. National Grid sheet (1:250 000) Warrina (Hanns Knob #1 and Birribiana #1) and Innaminka (Moorari #4, Moorari #5 and Fly Lake #1), Dalhousie (Mount Hammersley #1 and Dalmatia #1). Includes bibliographical references (leaves 43-49).

An Hu, 胡安

碩士 / 國立中央大學 / 土木工程學系 / 106 / Great East Japan Earthquake on March 11th, 2011 stroke Fukushima No.1 Nuclear Power Plant and generated a huge amount of wastes contained radioactive cesium. Since the amount of radioactive waste is too large and the radioactivity is dangerous, offshore disposal facility is a good choice for Japan Government and many points should be satisfied for it. The purpose of this study is to find out the proper material for the 4.0-meter sealing layer of offshore disposal fac...

Remi Lehu, 雷米

博士 / 國立中央大學 / 地球科學學系 / 103 / Taiwan is a young mountain belt, known as one of the most active area in the world. Since the beginning of the 20th century more than twenty Mw7 earthquakes have struck the island. However, the occurrence of larger events (Mw8) is still a matter of debate. In this framework it is of key importance to obtain longer record in order to evaluate the occurrence of large past earthquakes. The sub-aqueous paleoseismology, based on the record of the sedimentary gravity depo...

Elham Davarpanah

No description available.

Carla Marisa Pacheco Magalhães

No description available.

Luís Gabriel Antão Barboza

No description available.

José Diogo Neves dos Santos

No description available.

Ana Isabel Leal Natal

No description available.

Inês Rosado de Jesus Vitorino

No description available.

Vítor Rocha Miranda da Silva

No description available.

Demanche, Robert

No description available.

The Florida Gulf of Mexico coast extends over both tropical and subtropical zones resulting in an intermingling of fauna typical to both zones. Cold winter water temperatures historically limited the distribution of many tropical species and allowed sub-tropical species to thrive. In the past 60 years, average winter sea surface temperatures have increased 2-3°C in the Northern Gulf of Mexico (NOAA OSPS), potentially allowing range expansion of tropical species and local extinction of subtropica...

abstract: Biodiversity is required to guarantee proper ecosystem structure and function. However, increasing anthropogenic threats are causing biodiversity loss around the world at an unprecedented rate, in what has been deemed the sixth mass extinction. To counteract this crisis, conservationists seek to improve the methods used in the design and implementation of protected areas, which help mitigate the impacts of human activities on species. Marine mammals are ecosystem engineers and importan...

Beemer, Chloe

Fish. Why do fish matter? Fish are the main source of protein for three billion people on Earth (World Wildlife Fund, 2019), that is roughly 39 percent of the global population (United Nations, 2019, p. 11). Food, in particular, is essential to politics, as it literally fuels the brainpower of mankind. There is power in sustaining this essential resource for generations to come, it is a crucial aspect of the future of food. Power through Sustainability. Focusing on institutions and fishery polit...

McIntosh, Kyle Douglas

No description available.

Alvarez, Manuel

No description available.