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Effects Of Non-Planar Distortions In Porphyrin Compounds On Their Properties And Functionality, Raid Haddad Aug 2011

Effects Of Non-Planar Distortions In Porphyrin Compounds On Their Properties And Functionality, Raid Haddad

Chemical and Biological Engineering ETDs

Porphyrins and related compounds are ubiquitous in nature, performing diverse functions including solar energy transduction, electron transport, molecular transport and storage, and catalysis. Due to their unique photophysical and chemical properties, they are excellent candidates for application as photosensitizers, catalysts, photocatalysts, molecular electronics and opto-electronics. Several properties of porphyrins are sensitive to small variations in their structure, and this dissertation investigates the effects of out-of-plane distortions of the macrocycle on optical properties, reactivity to axial ligands, and substituent rotation. The structure-functions relationships are examined using molecular simulations, UV-visible absorption spectroscopy, resonance Raman spectroscopy, and normal-coordinate structural decomposition (NSD) analysis of …

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Faculty Senate Summarized Minutes, 8/30/2011, Unm Faculty Senate Aug 2011

Faculty Senate Summarized Minutes, 8/30/2011, Unm Faculty Senate

Faculty Senate Meeting Minutes, 1920 - 2013

No abstract provided.

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The Valles Caldera: Recreationists' Perspectives On Access And Management, Matt Gagnon Aug 2011

The Valles Caldera: Recreationists' Perspectives On Access And Management, Matt Gagnon

Geography ETDs

With the public acquisition of Valles Caldera National Preserve in 2000, Congress granted management to a Board of Trustees, a unique experiment in public land management. Ten years into the experiment, the trust model has been failing to meet certain management objectives and is under pressure by outdoor recreationists to provide greater public access to this treasured piece of land in New Mexico. Pressure has become so great that the United States Senators from New Mexico have introduced legislation, the Valles Caldera National Preserve Management Act, which would transfer management to the National Park Service. To address this blossoming issue, …

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Investigating Evidence Of High Frequency Glacial Eustacy In The Lower Mississippian (Tournasian) Lodgepole Formation Of Southwest Montana : Insights From Conodont Oxygen Isotopes, Zachary Wallace Aug 2011

Investigating Evidence Of High Frequency Glacial Eustacy In The Lower Mississippian (Tournasian) Lodgepole Formation Of Southwest Montana : Insights From Conodont Oxygen Isotopes, Zachary Wallace

Earth and Planetary Sciences ETDs

This study focuses on high-frequency, subtidal-carbonate cycles (1-8 m thick) within the Woodhurst Member of the Lower Mississippian Lodgepole Formation of southwest Montana. We combined conodont-oxygen isotopes (δ18Oapatite¬) and carbonate-carbon isotopes (δ13Ccarb) with cyclostratigraphy of Woodhurst cycles to test the hypothesis that the cycles developed in response to glacial eustasy, evaluate the timing and initiation of the Late Paleozoic Ice Age (LPIA), and to better understand the carbon budget in response to cycle formation. δ18Oapatite trends across targeted cycles support the hypothesis of glacial eustatic origins along with cooling surface seawater temperatures. High-resolution δ13Ccarb analysis of whole-rock limestones within eleven …

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Applying Numerical Sediment Transport Models To Examine River Restoration Sustainablilty At The Rio Grande Nature Center, New Mexico, Kyle Shour Aug 2011

Applying Numerical Sediment Transport Models To Examine River Restoration Sustainablilty At The Rio Grande Nature Center, New Mexico, Kyle Shour

Civil Engineering ETDs

Much of the Middle Rio Grande has severely degraded since 1930 when flood control institution began (Scurlock 1998). Since that time, additional anthropogenic stressors have continued to cause the river to incise and narrow and have harmed the ecological health of the system. As a result, many different entities have developed restoration projects along the Middle Rio Grande. These projects are often localized, small scale features that promote native vegetation establishment and improve habitat for endangered species without removing flood protection measures. One such feature is the Rio Grande Nature Center (RGNC) Habitat Restoration project. The project consists of removing …

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Characterizing The Local Food Environment In Albuquerque, New Mexico: A Dual Perspective Of Retailer And Consumer, Kathryn Lenzer Aug 2011

Characterizing The Local Food Environment In Albuquerque, New Mexico: A Dual Perspective Of Retailer And Consumer, Kathryn Lenzer

Geography ETDs

This research used local produce as a way to investigate the construction and meaning of the local food environment by food retailers and consumers in Albuquerque, New Mexico. The research consisted of three components. First, the observed local food environment was defined through store surveys that were conducted in 193 food retail outlets and farmers markets in the Albuquerque study area. These surveys were performed in order to collect information, through signage and other advertising materials, about how retailers defined 'local' produce. The subsequent qualitative text analysis on these materials allowed for several themes to emerge that characterized the observed …

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Structural Characterization Of Metal Binding In Metallo-Β-Lactamases Using X-Ray Absorption Spectroscopy, Robert M. Breece Aug 2011

Structural Characterization Of Metal Binding In Metallo-Β-Lactamases Using X-Ray Absorption Spectroscopy, Robert M. Breece

Chemistry and Chemical Biology ETDs

In an effort to probe the structure and mechanism of metallo-β-lactamases, the metal-binding behaviors of several enzymes were studied using EXAFS (Extended X-ray Absorption Fine Structure). Three members of the metallo-β-lactamase subclass B1, BcII from Bacillus cereus, Bla2 from Bacillus anthracis and CcrA from Bacillus fragilis, were compared to examine metal-binding behavior within a subclass. Each system exhibits different metal-binding behavior including cooperative binding (BcII), sequential binding (CcrA), and differential binding between zinc(II) and cobalt(II) forms (Bla2). The metal-binding behavior of subclass B3 of L1 from Stenotrophomonas maltophilia was explored with RFQ (rapid-freeze quenched) EXAFS and site selective metal …

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Resource Allocation In Realistic Wireless Cognitive Radios Networks, Mahmoud Alayesh Aug 2011

Resource Allocation In Realistic Wireless Cognitive Radios Networks, Mahmoud Alayesh

Electrical and Computer Engineering ETDs

Cognitive radio networks provide an effective solution for improving spectrum usage for wireless users. In particular, secondary users can now compete with each other to access idle, unused spectrum from licensed primary users in an opportunistic fashion. This is typically done by using cognitive radios to sense the presence of primary users and tuning to unused spectrum bands to boost efficiency. Expectedly, resource allocation is a very crucial concern in such settings, i.e., power and rate control, and various studies have looked at this problem area. However, the existing body of work has mostly considered the interactions between secondary users …

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Control Of An Indoor Autonomous Mobile Communications Relay Via Antenna Diversity, Brian Griffin Aug 2011

Control Of An Indoor Autonomous Mobile Communications Relay Via Antenna Diversity, Brian Griffin

Electrical and Computer Engineering ETDs

Presented in this thesis is a motion planning scheme for enabling a quadrotor unmanned aerial vehicle (UAV) to serve as an autonomous communications relay in indoor or GPS-denied environments. The goal of the algorithm is to maximize the throughput of the end-to-end communications channel. An extremum-seeking controller steers the quadrotor while collision avoidance is provided by artificial potential fields. Extremum-seeking is model-free adaptive control method; it's applicable in situations where there is a nonlinearity in the control problem and the nonlinearity has a local minimum or maximum. The extremum-seeking controller presented here is driven by antenna diversity and attempts to …

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Polymerization In Emulsion Microdroplet Reactors, Nick J. Carroll Aug 2011

Polymerization In Emulsion Microdroplet Reactors, Nick J. Carroll

Chemical and Biological Engineering ETDs

The goal of this research project is to utilize emulsion droplets as chemical reactors for execution of complex polymerization chemistries to develop unique and functional particle materials. Emulsions are dispersions of immiscible fluids where one fluid usually exists in the form of drops. Not surprisingly, if a liquid-to-solid chemical reaction proceeds to completion within these drops, the resultant solid particles will possess the shape and relative size distribution of the drops. The two immiscible liquid phases required for emulsion polymerization provide unique and complex chemical and physical environments suitable for the engineering of novel materials. The development of novel non-ionic …

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Gpsa Student Council Meeting, 8/27/2011, Graduate And Professional Student Association Aug 2011

Gpsa Student Council Meeting, 8/27/2011, Graduate And Professional Student Association

GPSA Meeting Agendas and Minutes

No abstract provided.

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Mph Principles Of Public Health: Fall 2011 Syllabus, Nina Wallerstein, Robert Rhyne, Jonathan Eldredge Aug 2011

Mph Principles Of Public Health: Fall 2011 Syllabus, Nina Wallerstein, Robert Rhyne, Jonathan Eldredge

Principles of Public Health 2010-2017

No abstract provided.

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Dreams And Dust In The Black Hills: Race, Place, And National Identity In America's "Land Of Promise", Elaine Marie Nelson Aug 2011

Dreams And Dust In The Black Hills: Race, Place, And National Identity In America's "Land Of Promise", Elaine Marie Nelson

History ETDs

Indigenous groups that occupied the Black Hills for thousands of years established economic, spiritual, and political connections to the region. Through these relationships, many indigenous people formed their tribal identities in association to this land. Many of these connections with the Black Hills continue to persist in Native American tribes in the present-day. But decades of American western expansion changed indigenous relationships to the region. In 1868, the United States negotiated with the Lakota people the terms of the Fort Laramie Treaty, which established the Great Sioux Reservation and legally guaranteed the Black Hills to the Lakota tribe. When the …

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Mechanistic Studies On Xanthine Oxidoreductase Enzymes, Abebe Berhane Aug 2011

Mechanistic Studies On Xanthine Oxidoreductase Enzymes, Abebe Berhane

Chemistry and Chemical Biology ETDs

In humans, the xanthine oxidoreductase enzymes are known to catalyze the final two steps of purine metabolism by converting hypoxanthine successively to xanthine and uric acid. Xanthine oxidoreductase also metabolizes a wide variety of drugs in vivo, and activates a number of antiviral prodrugs of clinical importance. Therefore, understanding the reaction mechanism of this enzyme is of prime importance in furthering our understanding of enzyme-drug interactions. In order to provide a greater understanding on the reaction mechanism, theoretical and enzymatic spectroscopic experimental approaches have been utilized. The theoretical approaches were used to elucidate the electronic structure and geometry of the …

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An Exploration And Reconsideration Of Normal Body Temperature In Healthy Adults, Rebecca Mayo Aug 2011

An Exploration And Reconsideration Of Normal Body Temperature In Healthy Adults, Rebecca Mayo

Nursing ETDs

The human body temperature generally considered normal by medical professionals and the lay public and believed to be an important referent in diagnosing illness and determining its severity is 98.60 Fahrenheit (F). The initial work establishing 98.60 F published over 140 years ago may be flawed; and, even if correct, may not reflect the present normal body temperature. To investigate mean body temperature in adults ages 21-100 who regarded themselves as 'well,' an observational descriptive study was undertaken to measure body temperature using two commonly used measurement methods, oral and tympanic. 1000 adults comprised the non probability non randomized sample …

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Development Of Novel Bio/Nano Interfaces For Materials Science And Biomedical Applications, Carlee Ashley Aug 2011

Development Of Novel Bio/Nano Interfaces For Materials Science And Biomedical Applications, Carlee Ashley

Chemical and Biological Engineering ETDs

Virus-like particles (VLPs) of MS2 bacteriophage possess a variety of characteristics that enable their use in biomedical and materials science applications. MS2 VLPs are perfectly monodisperse and possess a highly regular periodic structure. Their protein capsids can be modified in precise locations via chemical conjugation or genetic display of peptides, and their interior volumes can be readily loaded with a variety of non-genomic materials by taking advantage of their ability to self-assemble in the presence of RNA and RNA-modified cargos. Using peptides identified by filamentous phage display, I have demonstrated the utility of MS2 VLPs as targeted nanocarriers capable of …

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Identifying The Crucial Elements Of States' Collaboration Over The Long Haul: The Transportation Of Nuclear Waste To New Mexico, Kerry E. Rodgers Jul 2011

Identifying The Crucial Elements Of States' Collaboration Over The Long Haul: The Transportation Of Nuclear Waste To New Mexico, Kerry E. Rodgers

New Mexico Law Review

No abstract provided.

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Drug User Fee Reform: The Problem Of Capture And A Sunset, And The Relevance Of Priorities And The Deficit, Margaret Gilhooley Jul 2011

Drug User Fee Reform: The Problem Of Capture And A Sunset, And The Relevance Of Priorities And The Deficit, Margaret Gilhooley

New Mexico Law Review

No abstract provided.

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Experimental Protocols For And Studies Of The Effects Of Surface Passivation And Water Isotopes On The Gliding Speed Of Microtubules Propelled By Kinesin-1, Roger Maloney Jul 2011

Experimental Protocols For And Studies Of The Effects Of Surface Passivation And Water Isotopes On The Gliding Speed Of Microtubules Propelled By Kinesin-1, Roger Maloney

Physics & Astronomy ETDs

This dissertation explores how the kinesin-1 and microtubule system is affected by surface passivation and water isotopes. Surface passivation was found to affect the gliding speed that microtubules exhibit in the gliding motility assay and the lengths of microtubules supported by the passivation. It was also found that gliding speeds of microtubules were very sensitive to temperature changes. Studies changing the water isotope were a first attempt to investigate if changing the solvent changed the osmotic pressure of the solution kinesin and microtubules were in. No osmotic pressure changes were observed, however, the experiments using different isotopes of water did …

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Analysis Of The Organization And Dynamics Of Proteins In Cell Membranes, Flor Aurelia Espinoza Hidalgo Jul 2011

Analysis Of The Organization And Dynamics Of Proteins In Cell Membranes, Flor Aurelia Espinoza Hidalgo

Mathematics & Statistics ETDs

Cells communicate with the outside world through membrane receptors that recognize one of many possible stimuli (hormones, antibodies, peptides) in the extracellular environment and translate this information to intracellular responses. Stimulation of the cells produces changes in the organization and dynamics of the receptors that are critical to signal transduction. Problems in signaling networks are important in understanding many diseases including cancer, allergy and asthma, so there is great interest in understanding these changes. Biologists in the Spatiotemporal Modeling of Cell Signaling Center (STMC) have generated a large amount of data about the high affinity receptor FceRI, that is found …

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Trends And Interannual Variability In Snowpack And Spring Season Hydroclimatology In The Southwestern United States, Sarah J. Keller Jul 2011

Trends And Interannual Variability In Snowpack And Spring Season Hydroclimatology In The Southwestern United States, Sarah J. Keller

Earth and Planetary Sciences ETDs

By virtue of its relatively low latitude and already marginal snowpack, especially in Arizona and much of New Mexico, the southwestern U.S. is a compelling location in which to study how temperature and seasonal snowpack interact to affect spring hydroclimatology. Understanding snowpack-mediated spring soil moisture and how observed, current changes in the regional climate affect the snowpack-soil moisture relationship will provide important insights into the current and future hydrology of the southwestern U.S. In this study, we use newly available data from the North American Land Data Assimilation System (NLDAS-2) Phase 2, run with the Mosaic land surface model, to …

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Evoking Visual Imagination In Teaching Writing: Esl Students' Perspectives, Izabella Kovarzina Jul 2011

Evoking Visual Imagination In Teaching Writing: Esl Students' Perspectives, Izabella Kovarzina

Language, Literacy, and Sociocultural Studies ETDs

This study examines the relationship between encouraging visual imagination and ESL (English as a Second Language) writing performance. It was designed as a onesemester case study of two groups: high-intermediate and intermediate ESL writers, using a series of pre-writing activities designed to stimulate visual imagination. As an investigation of imagination across different cultures and languages, this study is intended to shed new light on the role of visual imagination in ESL writing instruction. The data collected in this qualitative research study included four principal methods: 1) participants essay assignments exploring different writing topics throughout the 16-week semester; 2) participants' reflection …

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Probing Morphology-Dependent Aggregation And Photocurrent Generation In Polymer/Fullerene Photovoltaic Devices, Yongqian Gao Jul 2011

Probing Morphology-Dependent Aggregation And Photocurrent Generation In Polymer/Fullerene Photovoltaic Devices, Yongqian Gao

Chemistry and Chemical Biology ETDs

In this dissertation, new spectroscopic and electrical imaging approaches were developed to map morphology-dependent aggregation properties of polymer chains in model solar cell devices. These techniques reveal new correlations between local structure and material performance on sub-micron size scales which are not accessible by other techniques. Resonance Raman spectroscopic imaging was developed as a physical probe to identify and spatially map morphology-dependent variations of intra- and interchain interactions and order in poly-3-hexylthiophene (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) photovoltaic blend thin films. The C=C band of P3HT backbone was decomposed into aggregated and unaggregated component contribution at ~1450 cm …

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Quantitative Structure-Property Relationships For Predicting Chlorine Demand And Disinfection Byproducts Formation In Drinking Water, Gebhard Balthazar Luilo Jul 2011

Quantitative Structure-Property Relationships For Predicting Chlorine Demand And Disinfection Byproducts Formation In Drinking Water, Gebhard Balthazar Luilo

Chemistry and Chemical Biology ETDs

Models are important tools for designing or redesigning water treatment processes and technologies to minimize disinfection byproducts (DBPs) formation without compromising disinfection efficiency. Empirical models, which are the most common, are based on bulk water quality parameters that vary with time and space. These parameters may not always have linear relationships with chlorine demand and DBPs formation which make structure-based models more attractive to study. In this dissertation, Quantitative Structure-Property Relationship (QSPR) models which make use of structural properties of individual molecules were developed using experimental data obtained from the literature. The amounts are reported in moles of chlorine (HOCl) …

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Spectroscopic And Electronic Structure Studies Of Metalloenzyme Active Sites, Joseph Sempombe Jul 2011

Spectroscopic And Electronic Structure Studies Of Metalloenzyme Active Sites, Joseph Sempombe

Chemistry and Chemical Biology ETDs

This work reports on the electronic and geometric structural studies of xanthine oxidoreductase (XO), S-ribosylhomocysteinase (LuxS) and inducible nitric oxide synthase (iNOS) active sites resulting from the joint applications of electronic absorption, electron paramagnetic resonance and magnetic circular dichroism spectroscopic methods. XO catalyzes formal oxygen atom insertion into a substrate C-H bond, but differs from monooxygenase enzymes in that the inserted oxygen atom derives from metal activated water and reducing equivalents are generated rather than consumed. Studies on aldehyde inhibited' XO (a paramagnetic form observed during XO catalysis), analyzed in terms of the relationships between the g-, 95,97Mo hyperfine, …

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Quest For A Deaf Child: Ethics And Genetics, Teresa Blankmeyer Burke Jul 2011

Quest For A Deaf Child: Ethics And Genetics, Teresa Blankmeyer Burke

Philosophy ETDs

This project investigates the question of whether it is morally justifiable to use genetic technology in order to bear a deaf child. Even though it may seem counterintuitive to hearing people, deaf people often desire to have deaf children. Reasons for this vary, but often include a deep longing to have a child who can fully participate in ones linguistic and cultural community. Many view using genetic technology to ensure or create a child with a disability as harmful and a dereliction of parental duty; dismissing the desire for a deaf child as misguided at best. I begin by situating …

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Spectroscopic And Electronic Structure Studies Of Bis-Metallodithiolenes, Regina Peter Mtei Jul 2011

Spectroscopic And Electronic Structure Studies Of Bis-Metallodithiolenes, Regina Peter Mtei

Chemistry and Chemical Biology ETDs

Dimethylsulfoxide reductase (DMSOR) enzyme family members catalyze oxygen atom transfer to or from organic or inorganic substrate and play important roles in the global cycles of sulfur and nitrogen, as well as the detoxification of arsenite. This enzyme has recently been subject of investigation due to its catalytic nature of oxygen atom transfer. This work reports on the electronic structure and reactivity properties of dimethylsulfoxide reductase enzyme studied using spectroscopic and computational methods. The spectroscopic methods included electronic absorption (EA), electron paramagnetic resonance (EPR), magnetic circular dichroism (MCD) and resonance Raman rRaman). Here, we report full characterization of the DMSOR …

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Interpreting Early Triassic (Smithian) Sea-Level Change And Climate Using Sequence Stratigraphy And Oxygen Isotopes Of Conodont Apatite, Stephanie Yurchyk Jul 2011

Interpreting Early Triassic (Smithian) Sea-Level Change And Climate Using Sequence Stratigraphy And Oxygen Isotopes Of Conodont Apatite, Stephanie Yurchyk

Earth and Planetary Sciences ETDs

The Early Triassic is conventionally interpreted to have a warm and ice-free climate. During this time, three globally recognized depositional sequences developed in response to ~My-scale sea-level changes. The Lower Triassic Lower Thaynes Formation records the Smithian (2nd sea-level cycle in the Early Triassic) in the western United States (Confusion Range and Weber Canyon, Utah). The Smithian portion of the Mikin Formation records an approximately time-equivalent sea-level cycle in northern India (Guling, Himachal Pradesh). The maximum flooding zone combined with existing age-diagnostic biostratigraphy allows for correlation between two sections in the western United States and one section in northern India …

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Electromagnetic Pulse Technology : Biological And Terahertz Applications, Prashanth Kumar Jul 2011

Electromagnetic Pulse Technology : Biological And Terahertz Applications, Prashanth Kumar

Electrical and Computer Engineering ETDs

Since the mid-1970s, the field of Electromagnetic Pulse (EMP) technology has extended to include High-Power Electromagnetic (HPE) sources/antennas. Two such EMP/HPE antennas, designed to address unique applications, are presented in this dissertation. The first is the Prolate-Spheroidal Impulse-Radiating Antenna (PSIRA). Such an antenna uses a prolate-spheroidal reflector and has two foci. A fast (<= 100 ps), high-voltage (> 100 kV) pulse launched from the first focal point is focused into a target located at the second focal point (near-field). It has been found that these pulses are useful for a variety of biological applications, such as accelerated wound healing and skin cancer (melanoma) treatment. …

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Assessment Of The Biocompatibility, Stability, And Suitability Of Novel Thermoresponsive Films For The Rapid Generation Of Cellular Constructs, Jamie Reed Jul 2011

Assessment Of The Biocompatibility, Stability, And Suitability Of Novel Thermoresponsive Films For The Rapid Generation Of Cellular Constructs, Jamie Reed

Chemical and Biological Engineering ETDs

Stimuli responsive polymers (SRP) are of great interest in the bioengineering community due to their use in applications such as drug delivery and tissue engineering. One example of an SRP is poly(N-isopropyl acrylamide) or pNIPAM. This SRP has the capability of changing its conformation with a slight temperature change: adherent mammalian cells spontaneously release as a confluent cell sheet, which can be harvested for cell sheet engineering purposes. Since its initial use in 1968, many researchers have used pNIPAM to obtain a cell sheet composed of their cell type of interest. The differing protocols used for these diverse cell types, …

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