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Articles 1 - 25 of 25
Full-Text Articles in Physical Sciences and Mathematics
Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray
Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray
Physics
The Sur-Nacimiento fault exposed along the central California coast (United States) juxtaposes the Salinian block arc against the Nacimiento block accretionary complex, cuts out the majority of the forearc basin and western arc, and requires a minimum of 150 km of orogen-normal crustal excision within the Mesozoic California convergent margin. Despite this significant strain, the kinematic evolution of the Sur-Nacimiento fault remains poorly understood, with diverse hypotheses suggesting sinistral, dextral, thrust, or normal displacement along the fault. This Late Cretaceous–Paleogene strain history is complicated by the location of the fault within a belt of subparallel faults that have accommodated significant …
Molecular Dynamics Simulations On Gas-Phase Proteins With Mobile Protons: Inclusion Of All-Atom Charge Solvation., Lars Konermann
Molecular Dynamics Simulations On Gas-Phase Proteins With Mobile Protons: Inclusion Of All-Atom Charge Solvation., Lars Konermann
Chemistry Publications
Molecular dynamics (MD) simulations have become a key tool for examining the properties of electrosprayed protein ions. Traditional force fields employ static charges on titratable sites, whereas in reality, protons are highly mobile in gas-phase proteins. Earlier studies tackled this problem by adjusting charge patterns during MD runs. Within those algorithms, proton redistribution was subject to energy minimization, taking into account electrostatic and proton affinity contributions. However, those earlier approaches described (de)protonated moieties as point charges, neglecting charge solvation, which is highly prevalent in the gas phase. Here, we describe a mobile proton algorithm that considers the electrostatic contributions from …
Late Tertiary Tectonic Uplift In The Southern And Central Appalachians, Mary Sheela Biswal
Late Tertiary Tectonic Uplift In The Southern And Central Appalachians, Mary Sheela Biswal
Masters Theses
The exposed Appalachian Mountains extend about 2500 km from Newfoundland to Alabama with the highest peaks >2000 m above sea level. The last orogeny that affected Appalachian crust was the 325-260 Ma Alleghanian. Even with minimal erosion rates, it is highly unlikely that the Appalachians could have sustained such elevations for over 200 m.y., suggesting that recent tectonic uplift has produced today’s mountainous topography. The multiple phases of Tertiary uplift are related to poorly understood processes, but a large amount of data from today’s mountain chain and the adjacent Coastal Plain indicate the present high topography is anomalous and clearly …
Development And Validation Of An Epitope Prediction Tool For Swine (Pigmatrix) Based On The Pocket Profile Method, Andres H. Gutiérrez, William D. Martin, Chris Bailey-Kellogg, Frances Terry, Leonard Moise, Anee S. De Groot
Development And Validation Of An Epitope Prediction Tool For Swine (Pigmatrix) Based On The Pocket Profile Method, Andres H. Gutiérrez, William D. Martin, Chris Bailey-Kellogg, Frances Terry, Leonard Moise, Anee S. De Groot
Dartmouth Scholarship
Background: T cell epitope prediction tools and associated vaccine design algorithms have accelerated the development of vaccines for humans. Predictive tools for swine and other food animals are not as well developed, primarily because the data required to develop the tools are lacking. Here, we overcome a lack of T cell epitope data to construct swine epitope predictors by systematically leveraging available human information. Applying the “pocket profile method ”, we use sequence and structural similarities in the binding pockets of human and swine major histocompatibility complex proteins to infer Swine Leukocyte Antigen (SLA) peptide binding preferences. We developed epitope-prediction …
Orbitally Paced Shifts In The Particle Size Of Antarctic Continental Shelf Sediments In Response To Ice Dynamics During The Miocene Climatic Optimum, Sandra Passchier, Candice J. Falk, Fabio Florindo
Orbitally Paced Shifts In The Particle Size Of Antarctic Continental Shelf Sediments In Response To Ice Dynamics During The Miocene Climatic Optimum, Sandra Passchier, Candice J. Falk, Fabio Florindo
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
The AND-2A drill hole (ANDRILL [Antarctic Geological Drilling Program] Southern McMurdo Sound Project), ∼10 km from the East Antarctica coastline, records nearly 6 m.y. of sedimentation across the Miocene climatic optimum at a high-latitude site. Sedimentological studies of bedforms and particle size distributions indicate that the paleoenvironment was strongly affected by waves and currents, consistent with deposition in a glacially influenced neritic environment. We document abrupt shifts in mud percent within glacial-interglacial cycles ca. 17.8 Ma and between ca. 16.7 and 15.7 Ma that we attribute to the hydrodynamic effects of wave stirring tied to episodes of ice growth and …
Contributions To The Knowledge Of Flora And Vegetation Of The Tertiary In The Extracarpathian Area Of Romania, RăZvan Givulescu
Contributions To The Knowledge Of Flora And Vegetation Of The Tertiary In The Extracarpathian Area Of Romania, RăZvan Givulescu
Studia UBB Geologia
The author presents the fossil flora and vegetation of the extracarpathian regions of Romania: on one hand, the Eocene-Oligocene-Late Dacian fossil floras from the southern area, and on the other hand - the Sarmatian ones from the eastern area. It is insisted on the Sarmatian as compared to the one from Transylvania. There are important similarities with the southern area, but none as concerns the eastern one. The characteristic feature of the area comprised between the Carpathians and the Prut is the absence of the Lauraceae and the massive presence of Betulaceae. The author suggests the creation of a palaeofitogeographic …
Organic Geochemical And Petrographi̇cal Characteristics Of Karliova Halifan (Bingol) Coals, Orhan Kavak, Selami Toprak
Organic Geochemical And Petrographi̇cal Characteristics Of Karliova Halifan (Bingol) Coals, Orhan Kavak, Selami Toprak
Bulletin of the Mineral Research and Exploration
In this study, petrographic and organic geochemical characteristics of the Tertiary Karlıova-Halifan coals (Bingöl) were investigated. Determination of coal quality was based on chemical (moisture, volatile matter, fixed carbon, ash) and elemental analyses (C, H, O, S, N). The values of the huminite reflectances in organic matter-rich coal levels change between 0.368 and 0.573 %, which correspond to low maturity levels. These parameters are in good aggrement with their fluorescence colors, calorific value (average original-2266, dry-3177 Kcal/kg, upper calorific value) and average Tmax (417oC) values. The organic material in studied coals show low grade transformation due to low lithostatic pressure. …
An Integrated Geophysical And Geologic Study Of The Paleogene-Age Volcanic Body And Possible Landslide Deposit On The South Slope Of The Traverse Mountains, Utah, John C. Hoopes
Theses and Dissertations
Development of homes, roads, and commercial buildings in northern Utah has grown significantly during the last several decades. Construction has expanded from the valley floor to higher elevations of benches, foothills, and other elevated regions of the Wasatch Mountain Front. Construction in the higher elevation areas are a concern due to potential for landslides, both new and reactivated. Landslides have been identified in this region and are dated as Pleistocene to historical in age. A possible landslide of about 0.5 km2 on the south slope of Traverse Mountain has been mapped by the Utah Geological Survey in 2005. Its surface …
Acrb Trimer Stability And Efflux Activity, Insight From Mutagenesis Studies, Linliang Yu, Wei Lu, Yinan Wei
Acrb Trimer Stability And Efflux Activity, Insight From Mutagenesis Studies, Linliang Yu, Wei Lu, Yinan Wei
Chemistry Faculty Publications
The multidrug transporter AcrB in Escherichia coli exists and functions as a homo-trimer. The assembly process of obligate membrane protein oligomers, including AcrB, remains poorly understood. In a previous study, we have shown that individual AcrB subunit is capable of folding independently, suggesting that trimerization of AcrB follows a three-stage pathway in which monomers first fold, and then assemble. Here we destabilized the AcrB trimer through mutating a single Pro (P223) in the protruding loop of AcrB, which drastically reduced the protein activity. We replaced P223 separately with five residues, including Ala, Val, Tyr, Asn, and Gly, and found that …
Interaction Of Extracellular Domain 2 Of The Human Retina-Specific Atp-Binding Cassette Transporter (Abca4) With All-Trans-Retinal., Esther E Biswas-Fiss, Deepa S Kurpad, Kinjalben Joshi, Subhasis B Biswas
Interaction Of Extracellular Domain 2 Of The Human Retina-Specific Atp-Binding Cassette Transporter (Abca4) With All-Trans-Retinal., Esther E Biswas-Fiss, Deepa S Kurpad, Kinjalben Joshi, Subhasis B Biswas
Department of Medical Laboratory Sciences & Biotechnology Faculty Papers
The retina-specific ATP-binding cassette (ABC) transporter, ABCA4, is essential for transport of all-trans-retinal from the rod outer segment discs in the retina and is associated with a broad range of inherited retinal diseases, including Stargardt disease, autosomal recessive cone rod dystrophy, and fundus flavimaculatus. A unique feature of the ABCA subfamily of ABC transporters is the presence of highly conserved, long extracellular loops or domains (ECDs) with unknown function. The high degree of sequence conservation and mapped disease-associated mutations in these domains suggests an important physiological significance. Conformational analysis using CD spectroscopy of purified, recombinant ECD2 protein demonstrated that it …
Examples Of Weathering And Deterioration Of Tertiary Building Stones At St. Michaels Cathedral In Cluj-Napoca (Romania), Roman Koch, Paul Calin Racataianu, Ioan I. Bucur
Examples Of Weathering And Deterioration Of Tertiary Building Stones At St. Michaels Cathedral In Cluj-Napoca (Romania), Roman Koch, Paul Calin Racataianu, Ioan I. Bucur
Studia UBB Geologia
St. Michaels Cathedral is one of the oldest Gothic architectural monuments in Cluj. It is built predominantly of Cenozoic (Eocene) limestones which were deposited on a shallow carbonate platform. They are composed of different facies and microfacies types with varying amounts of particles, matrix and cement. Limestones from the Baci quarry (Cluj Limestone), which is situated about 3 km from the centre of Cluj, were commonly used. The weathering features correspond to the microfacies types, to the position of the stones in the walls and to the exposure (east, south, west, and north), which controls the moisture/dry cycles. This interrelationship …
Geology Of The Phil Pico Mountain Quadrangle, Daggett County, Utah, And Sweetwater County, Wyoming, Alvin D. Anderson
Geology Of The Phil Pico Mountain Quadrangle, Daggett County, Utah, And Sweetwater County, Wyoming, Alvin D. Anderson
Theses and Dissertations
Geologic mapping in the Phil Pico Mountain quadrangle and analysis of the Carter Oil Company Carson Peak Unit 1 well have provided additional constraints on the erosional and uplift history of this section of the north flank of the Uinta Mountains. Phil Pico Mountain is largely composed of the conglomeratic facies of the early Eocene Wasatch and middle to late Eocene Bridger Formations. These formations are separated by the Henrys Fork fault which has thrust Wasatch Formation next to Bridger Formation. The Wasatch Formation is clearly synorogenic and contains an unroofing succession from the adjacent Uinta Mountains. On Phil Pico …
Crystal Structure Of The Gtpase Domain Of Rat Dynamin 1, Thomas F. Reubold, Susanne Eschenburg, Andreas Becker, Marilyn Leonard, Sandra L. Schmid, Richard B. Vallee, F. Jon Kull, Dietmar J. Manstein
Crystal Structure Of The Gtpase Domain Of Rat Dynamin 1, Thomas F. Reubold, Susanne Eschenburg, Andreas Becker, Marilyn Leonard, Sandra L. Schmid, Richard B. Vallee, F. Jon Kull, Dietmar J. Manstein
Dartmouth Scholarship
Here, we present the 1.9-A crystal structure of the nucleotide-free GTPase domain of dynamin 1 from Rattus norvegicus. The structure corresponds to an extended form of the canonical GTPase fold observed in Ras proteins. Both nucleotide-binding switch motifs are well resolved, adopting conformations that closely resemble a GTP-bound state not previously observed for nucleotide-free GTPases. Two highly conserved arginines, Arg-66 and Arg-67, greatly restrict the mobility of switch I and are ideally positioned to relay information about the nucleotide state to other parts of the protein. Our results support a model in which switch I residue Arg-59 gates GTP binding …
The Stable Isotope Stratigraphy And Paleosols Of North America's Most Southern Exposure Of Late Paleocene/Early Eocene Fossiliferous Continental Deposits: Documenting The Initial Eocene Thermal Maximum In Big Bend National Park, Texas, Paul David White
LSU Doctoral Dissertations
A chemostratigraphic section across the Paleocene/Eocene boundary, using the stable isotopes of carbon and oxygen, has been developed for North America's most southern exposure of early Paleogene continental deposits in which the boundary is constrained by fossil mammals. A negative carbon excursion has been identified within C24r. The range in d13C values is from -8.1 to -13.2‰. Until the development of the chemostratigraphic section it was uncertain if the earliest Eocene was recorded in Big Bend. An early Wasatchian (Wa1) fossil site occurs stratigraphically higher than the carbon excursion and has yielded the stratigraphically lowest Hyracotherium in the …
Two-Phase Westward Encroachment Of Basin And Range Extension Into The Northern Sierra Nevada, Benjamin E. Surpless, D. F. Stockli, T. A. Dumitru, E. L. Miller
Two-Phase Westward Encroachment Of Basin And Range Extension Into The Northern Sierra Nevada, Benjamin E. Surpless, D. F. Stockli, T. A. Dumitru, E. L. Miller
Geosciences Faculty Research
Structural, geophysical, and thermochronological data from the transition zone between the Sierra Nevada and the Basin and Range province at latitude ~39°N suggest ~100 km westward encroachment of Basin and Range extensional deformation since the middle Miocene. Extension, accommodated primarily by cast dipping normal faults that bound west tilted, range-forming fault blocks, varies in magnitude from150% in the Wassuk and Singatse Ranges to the east. Geological and apatite fission track data from exhumed upper crustal sections in the Wassuk and Singatse Ranges point to rapid footwall cooling related to large magnitude extension starting at ~14-15 Ma. Farther to the west, …
Stratigraphy, Geochronology, And Tectonics Of The Salt Lake Formation (Tertiary) Of Southern Cache Valley, Utah, Kristine A. Smith
Stratigraphy, Geochronology, And Tectonics Of The Salt Lake Formation (Tertiary) Of Southern Cache Valley, Utah, Kristine A. Smith
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This study synthesizes the deposition and tectonic evolution of the Tertiary deposits in southern Cache Valley, a narrow, north-trending valley in the northeastern Basin-and- Range Province. The surrounding mountains consist of Proterozoic and Paleozoic sedimentary rocks. Southern Cache Valley is an east-tilted half-graben. The oldest Tertiary sediments are on the west side of the basin, and the overall dip is to the east.
The Late Miocene to Early Pliocene Salt Lake Formation (Tsl) accumulated above the thin (to absent) Early to Middle Eocene Wasatch Formation (Tw) and the newly identified Fowkes and Norwood Tuff equivalents (Tfn; late Middle Eocene to …
Petrology And Mineralogy Of Tertiary(?) Volcanic Rocks West And Southwest Of Kelton (Box Elder Co.), Utah, R. L. Voit
Petrology And Mineralogy Of Tertiary(?) Volcanic Rocks West And Southwest Of Kelton (Box Elder Co.), Utah, R. L. Voit
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Kelton, Utah, area has numerous, isolated basaltic outcrops of probable Tertiary age mostly in the form of cuestas with steep faces displaying columnar joints. One ash-flow tuff is located in the southeastern part of the study area. Basaltic fragments in the tuff indicate that pyroclastic activity was preceded by extrusion of basalt.
Effects of Lake Bonneville on the basaltic outcrops include wavecut terraces, scarps, and other wave-built forms in low lying areas. Massive carbonate deposits formed at levels of former shorelines of Lake Bonneville. Tertiary and Quaternary deposits cover the low- lying areas between basaltic flows, and consist of …
The Petrology And Mineralogy Of Tertiary(?) Olivine Trachyte In The Harrington Peak Quadrangle, Southeastern Idaho, Amanda Shearer-Fullerton
The Petrology And Mineralogy Of Tertiary(?) Olivine Trachyte In The Harrington Peak Quadrangle, Southeastern Idaho, Amanda Shearer-Fullerton
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Harrington Peak Quadrangle is located within the Caribou National Forest of southeast Idaho. Within this quadrangle are outcrops of olivine trachyte of Pliocene(?) age overlying sedimentary rocks of Mississippian to Tertiary age. The region contains thrust faults and later normal faults (generally trending north-south} formed during Basin and Range extension.
The Largest outcrop of olivine trachyte (approximately1 1/2 X 3 km) probably formed as the result of a fissure eruption. Two other outcrop areas show evidence of being sites of local extrusion.
Whole-rock chemical analyses revealed the olivine trachyte to have moderate amounts of SiO2 and Al2O …
Petrology And Mineralogy Of Tertiary(?) Volcanic Rocks Of Snowville Area, Utah, And Tertiary-Quaternary(?) Volcanic Rocks Of Table Mountain And Holbrook Areas, Idaho, Yunshuen Wang
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Basalt flows occur in the Snowville area of north-central Utah and the Table Mountain and Holbrook areas of south-central Idaho. All basalt flows are aphanitic in groundmass, and contain olivine, plagioclase, augite, and opaque oxides. They can be distinguished by texture. Snowville basalt has predominantly subophitic to intergranular textures. Table Mountain basalt is fine grained, with stumpy groundmass plagioclase and equant ilmenite crystals. Holbrook basalt has pilotaxitic to intergranular textures, with the presence of plagioclase phenocrysts and characteristic exsolution lamellae in Fe-Ti oxides. The olivine grains in Holbrook area are intensely oxidized to Fe-Ti oxides.
Snowville basalt contains olivine phenocrysts …
Structure And Petrology Of Tertiary Volcanic Rocks In Parts Of Toms Cabin Spring And Lucin Nw Quadrangles (Box Elder Co.), Utah, Bruce Edward Scarbrough
Structure And Petrology Of Tertiary Volcanic Rocks In Parts Of Toms Cabin Spring And Lucin Nw Quadrangles (Box Elder Co.), Utah, Bruce Edward Scarbrough
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A series of late Tertiary rhyolitic and dacitic flows, domes, and minor pyroclastic rocks form an elongate volanic mass along the northwestern Utah-northeastern Nevada border. The structure of the flow banding and the linear arrangement of vents indicate that the mass represents a multi-sourced extrusive complex which erupted through many fissure-type conduits. A 39 km2 area at the southern end of the mass was studied in detail in order to gain a better understanding of the eruptive nature and history of these Tertiary volcanic rocks. Age dating reveals that volcanism in the study area was episodic, and covered a …
Structure And Petrology Of Tertiary Volcanic Rocks Near Etna, Utah, Kent W. Smith
Structure And Petrology Of Tertiary Volcanic Rocks Near Etna, Utah, Kent W. Smith
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Three volcanic domes and related volcanic rocks of Tertiary age are located near Etna, Utah, in Box Elder County. The domes follow a north-south trend and are fault controlled. Flow structure indicates a change from a less viscous, flow-forming lava which produced an exogenous dome to a more viscous lava which formed endogenous domes. Associated pyroclastic deposits are negligible. The volcanic rocks are composed of porphyritic rhyolite and rhyolitic vitrophyre having phenocrysts of quartz, sanidine, plagioclase and biotite with minor amounts of Fe-Ti oxides, hypersthene, allanite and calcic amphibole. Quartz and sanidine phenocrysts are generally embayed whereas plagioclase phenocrysts are …
Tertiary Stratigraphy Of The Niobrara River Valley, Marsland Quadrangle, Western Nebraska, Conservation And Survey Division
Tertiary Stratigraphy Of The Niobrara River Valley, Marsland Quadrangle, Western Nebraska, Conservation And Survey Division
Conservation and Survey Division
No abstract provided.
A Study Of The Geology Of The Mount Humbug Area, Highland Mountains, Montana, Robert Grant Garwood, Charles Wray Hanna
A Study Of The Geology Of The Mount Humbug Area, Highland Mountains, Montana, Robert Grant Garwood, Charles Wray Hanna
Bachelors Theses and Reports, 1928 - 1970
This report presents a study of the phosphate bed and the associated sediments in the Mount Humbug area which embraces the southern half of T. 1 N., R. & W., and the northern half of T. 1 S., R. 9 W., and the northeast quarter of T. 1 S., R. 9 W. The object of this investigation was to examine and identify the metamorphosed sediments, the surrounding igneous rocks, and the terrace and fluvial deposits of the area.
Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook
Faunal Lists Of The Tertiary Vertebrata Of Nebraska And Adjacent Areas, H. J. Cook, M. C. Cook
Conservation and Survey Division
No abstract provided.
Faunal Lists Of The Tertiary Formations Of Sioux County, Nebraska, H. J. Cook
Faunal Lists Of The Tertiary Formations Of Sioux County, Nebraska, H. J. Cook
Conservation and Survey Division
No abstract provided.