Dartmouth Digital Library Program

The role of phytoplankton in the accumulation of organic and inorganic mercury in freshwater zooplankton.
Freshwater zooplankton -- Effect of heavy metals on. ; Freshwater zooplankton -- Food. ; Freshwater phytoplankton -- Ecology. ; Mercury -- Environmental aspects. ; Mercury -- Isotopes -- Environmental aspects. ; Daphnia pulex -- Effect of heavy...
Dartmouth Dissertations

Dosimetry for 5-aminolevulinic acid induced Protoporphyrin IX photodynamic therapy of Barrett's esophagus.
Esophagus -- Diseases -- Photochemotherapy -- Technique. ; Esophagus -- Diseases -- Dosimetric treatment. ; Radiation dosimetry. ; Porphyrins -- Therapeutic use.
Photodynamic therapy (PDT) is used to cause specific tissue destruction, using photochemical reactions that result from light excitation of photosensitizer, which has localized in the target tissue. The process of photosensitizer photobleaching was...
Dartmouth Dissertations

Extending the spatial and temporal applications of the U[superscript K][subscript 37] index as a marine paleotemperature proxy.
Marine sediments -- Analysis -- Chesapeake Bay (Maryland and Virginia). ; Marine sediments -- Analysis -- South China Sea. ; Paleoclimatology -- Chesapeake Bay (Maryland and Virginia). ; Paleoclimatology -- South China Sea. ; Paleoclimatology --...
Dartmouth Dissertations

Causes and consequences of individual variation in reproductive output in a forest-dwelling neotropical migrant songbird.
Black-throated blue warbler -- Fertility. ; Black-throated blue warbler -- Reproduction. ; Black-throated blue warbler -- Behavior. ; Black-throated blue warbler -- Food. ; Black-throated blue warbler -- New Hampshire -- West Thornton. ; Parental...
Populations are, by definition, a collection of individuals, so the mechanisms of population change often occur at the level of the individual. The goal of this research was to examine how variability in the behavior of individual females...
Dartmouth Dissertations

Long-term demographic trends, population limitation, and the regulation of abundance in a migratory songbird.
Black-throated blue warbler -- Reproduction. ; Black-throated blue warbler -- New Hampshire. ; Black-throated blue warbler -- Jamaica. ; Black-throated blue warbler -- Mortality -- Mathematical models. ; Climatic changes -- Environmental aspects --...
Understanding the processes that determine the abundance of migratory birds has been difficult because these species move between diverse locations on different continents. Furthermore, events during one stage of the annual cycle are likely to...
Dartmouth Dissertations

Effects of selenium deficiency on deiodinase expression and thyroid hormone economy in the rat during development.
Thyroid hormones -- Physiological effect. ; Selenium -- Physiological effect. ; Thyroid hormones -- Synthesis.
The iodothyronine deiodinases, D1, D2, and D3, play a crucial role in determining the circulating and intracellular levels of active and inactive thyroid hormone (TH), and thus have a major effect on TH action during development and adulthood. The...
Dartmouth Dissertations

Molecular Replacement for Nuclear Magnetic Resonance: application to NMR resonance assignment and protein structure determination.
Nuclear magnetic resonance spectroscopy -- Data processing. ; Proteins -- Analysis -- Mathematical models. ; Computer algorithms.
Our aim is to enhance high-throughput applications of Nuclear Magnetic Resonance (NMR) through the development of efficient computational methods that operate on sparse (minimal) sets of experimental NMR data. We have developed a family of four...
Dartmouth Dissertations

Synthetic approaches to the azamacrolides [Part] I; Synthetic approaches to carbazoles and 2-acylindoles [Part] II.
Alkaloids -- Synthesis. ; Allomones. ; Indole. ; Carbazone. ; Diels-Alder reaction.
A novel synthetic route to the synthesis of 9-propyl-10-azacyclododecan-12-olide (1), a natural allomone isolated from the Mexican bean beetle pupa, is presented. The salient features of this synthetic route are a regioselective Beckmann...
Dartmouth Dissertations

Mechanical property reconstruction from MR detected harmonic displacement data.
Soft tissue tumors -- Imaging. ; Tissues -- Mechanical properties -- Mathematical models. ; Tissues -- Magnetic resonance imaging. ; Finite element method.
A method for the reconstruction of a spectrum of mechanical properties from phase-contrast, MR displacement data is developed and implemented via the finite element method. To overcome the significant computational load associated with...
Dartmouth Dissertations

Geometric methods for NMR structure determination of symmetric homo-oligomers.
Oligomers -- Structure -- Mathematical models. Nuclear magnetic resonance spectroscopy. Medical Term: Nuclear Magnetic Resonance, Biomolecular.
Protein complexes play vital roles in the fundamental processes of life. In particular, homo-oligomers are involved in cell signaling, regulation, and transport. To make detailed studies of these symmetric proteins, they need to be discovered, and...
Dartmouth Dissertations

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