Digital Commons Network^™

Vitis Seeds (Vitaceae) From The Late Neogene Gray Fossil Site, Northeastern Tennessee, Usa., Fade Gong

Electronic Theses and Dissertations

This study focuses on the morphometric and systematic studies of fossil vitaceous seeds recently recovered from the Gray Fossil Site (7-4.5 Ma, latest Miocene-earliest Pliocene) northeastern Tennessee. Morphologically, all fossil seeds correspond to the extant subgenus Vitis (genus Vitis) of the Vitaceae based on the smooth dorsal surface with a centrally positioned chalaza connected with a conspicuous chalaza-apex groove and short linear ventral infolds that are slightly diverged apically. A multivariate analysis based on 11 measured characters from 76 complete seeds identified three types of seeds, each representing a distinct morphotaxon. Based on comparison with modern and fossil vitaceous …

Geosciences Collection Development Policy, Adonna Fleming

University of Nebraska-Lincoln Libraries: Collection Development Policies

The geosciences collection supports the teaching, research and service activities of the entire university community. Primary users are the faculty, staff, and students of the Geosciences Department. Its essential focus is support for the undergraduate and graduate curricula for the Geosciences Department. The collection is supplemented through interlibrary loan services whenever special curriculum and research needs of geosciences faculty and students arise. The UNL Libraries are classed as a regional depository library for U. S. government documents. The geosciences collection contains most publications of the U.S. Geological Survey, including an extensive collection of topographic and geological maps. Although materials are …

Extraction And Analysis Of Coral Reef Core Samples From Broward County, Florida., Anastasios Stathakopoulos

HCNSO Student Theses and Dissertations

The reefs off Broward County exist as three shore-parallel, sequentially deeper terraces named the "inner", "middle", and "outer" reefs and also a shallower, nearshore ridge complex. These structures span the continental coast of southeast Florida from Palm Beach County to southern Miami-Dade County and were characterized as relict, early Holocene shelf-edge and mid-shelf reefs along with limestone ridges. Presently, the reefs are colonized by a fauna characteristic of West Atlantic/Caribbean reef systems. Scleractinian coral cover is low except for a few dense patches of Acropora cervicornis, while Acropora palmata is absent except for a few individual living colonies.

Coral …

Cross Sections Used To Elucidate Differences In Wavelet Transforms Of Ground Force Reactions, Wesley John Orme

Boise State University Theses and Dissertations

A study done for the Centers for Disease Control (CDC) found that over 50% of sports related injuries are to the lower extremities [1] with additional studies indicating that females, adolescent through collegiate, have a higher rate of lower extremity sports related injuries than males [2-4]. Conditions surrounding non-contact injuries can be analyzed using ground reaction force (GRF) data from force plates during unanticipated single leg drops, however, the expected gender differences in GRF may not be apparent when viewing data independently in the time or frequency domains.

Graphing the results of a wavelet transform, currently used by scientific, medical, …

From Decades To Epochs: Spanning The Gap Between Geodesy And Structural Geology Of Active Mountain Belts, Richard W. Allmendinger, John P. Loveless, Matthew E. Pritchard, Brendan Meade

Geosciences: Faculty Publications

Geodetic data from the Global Navigation Satellite System (GNSS), and from satellite interferometric radar (InSAR) are revolutionizing how we look at instantaneous tectonic deformation, but the significance for long-term finite strain in orogenic belts is less clear. We review two different ways of analyzing geodetic data: velocity gradient fields from which one can extract strain, dilatation, and rotation rate, and elastic block modeling, which assumes that deformation is not continuous but occurs primarily on networks of interconnected faults separating quasi-rigid blocks. These methods are complementary: velocity gradients are purely kinematic and yield information about regional deformation; the calculation does not …

New Facets Of Old Alternatives For Unleased Mineral Interests, Lisa Vaughn

Texas Wesleyan Law Review

This article explores why pooling is especially needed in urban areas such as the Barnett Shale, and what operators and mineral interest owners can do to solve the problems caused by unleased and unpooled property interests.

Martian Modules: Design Of A Programmable Martian Settlement, Craig A. Trover

USF Tampa Graduate Theses and Dissertations

The evolution of human beings is marked

by adaptation. The ability to adapt to and

manipulate our environment is one definer of

intelligence, and ours is unique among life

on Earth. Since moving off of the African

Continent, humans have migrated to inhabit

every part of the Earth. Human existence

and perpetuity in the universe depends upon

the success of this adaptation, and inevitably,

migrating off of this planet. The technological

advances being developed today will change

our way of life, and enable people to travel to

and live permanently on the Moon and Mars.

This study involves the architectural …

Enhancement Plan For Downtown Cayucos, Ca, Rachelle Sarai Sneh Lopez

Master's Theses

An area can be torn by the competition between the preservation of its character and the desire for new development. Cayucos’ downtown area is recognized by both residents and visitors as a special place with a strong, small, coastal town feel. However, issues such as accessibility, public amenities, parking, maintenance, and general development needs have to be dealt with. This thesis deals with the issue of how to plan for change while maintaining the character of Cayucos, and presents an enhancement plan proposal for its downtown. The development of this plan was based on a research-based design methodology, which included …

Response To Request For Evaluation Of The Feasibility Of Erecting A Regional Wind Energy System Within The East Bay Of R.I., Non-Price Proposal, Boreal Renewable Energy Development

East Bay Energy Consortium Documents

No abstract provided.

Paleomagnetic Data Bearing On The Evolution Of The Walker Lane Belt Transfer Zone From Mid-Miocene To Present : An Investigation Of The Inferred Southern And Eastern Boundaries, Jack Grow

Earth and Planetary Sciences ETDs

The Walker Lane Belt (WLB) transfer zone, which initiated in the mid-Miocene, presently links the Eastern California Shear Zone in the south to the Central Nevada Seismic Belt and northern WLB to the northeast and north, respectively. The boundaries of the transfer system are clear on the northern and western margins but the extent of the system to the south and east is only inferred. The extent of deformation and development of the WLB transfer zone since the mid-Miocene was examined through a paleomagnetic study of rocks collected at 135 sites, including Neogene volcanic rocks and ashflow tuffs near the …

Scientific Literacy In Central Appalachia Through Contextually Relevant Experiences: The “Reading The River” Project, April D. Haight, Wilson J. Gonzalez-Espada

Faculty Research at Morehead State University

Despite the best intentions of the United States educational system, implementing science reform efforts equitably and consistently throughout the nation is still a long-term goal. The light of scientific literacy has yet to shine brightly in many rural, isolated and economically depressed regions. Using Appalachia as a case in point, this paper provides a synopsis of the challenges of quality rural science education in the United States and the hope of new contextual and culturally relevant pedagogies aimed at engaging science students in inquiry research using their environmental surroundings as cognitive scaffoldings. The program Reading the River is showcased as …

Strain Rate Patterns From Dense Gps Networks, Matthias Hackl, Rocco Malservisi, Shimon Wdowinski

School of Geosciences Faculty and Staff Publications

The knowledge of the crustal strain rate tensor provides a description of geodynamic processes such as fault strain accumulation, which is an important parameter for seismic hazard assessment, as well as anthropogenic deformation. In the past two decades, the number of observations and the accuracy of satellite based geodetic measurements like GPS greatly increased, providing measured values of displacements and velocities of points. Here we present a method to obtain the full continuous strain rate tensor from dense GPS networks. The tensorial analysis provides different aspects of deformation, such as the maximum shear strain rate, including its direction, and the …

Mineral Chemistry Of Some Agates From Gurasada (Mures Valley, Romania), Ovidiu G. Iancu, Dorel P. Toda, Gabriela Iancu

Studia UBB Geologia

The paper presents the study of some agates from the Gurasada area (Mures Valley, West Romania) and their igneous host rocks. Agates occur in the vesicles of strongly altered pyroclastic rocks (“banatites”), such as basaltic andesites, trachyandesites, trachytes and dacites or in the alluvial sediments along the Gurasada valley. The age of host-rocks is Late Cretaceous-Early Paleogene. Agates consist mainly of various types of α-quartz such as: chalcedony, quartzine and microquartz, associated with moganite. The genesis of agates is related with the hydrothermal solutions which altered the host-rocks.

Archaeometric Comparison Between The Neolithic Pottery Of Different Cultures At The Archaeological Site Of Alba Iulia (Transylvania, Romania), Bruno Fabbri, Mihai Gligor, Sabrina Gualtieri, Simona Varvara

Studia UBB Geologia

A large quantity of pottery has been discovered at the Lumea Nouă Neolithic and Eneolithic settlement in Alba Iulia City (Romania). It belongs to different cultures, and in this paper a comparison among three of them is made: Vinča, Lumea Nouă and Foeni. An analogous number of samples has been selected for each of the three cultures, together with some clay samples collected in the Alba Iulia settlement area. The samples have been analysed by means of XRF, XRPD, and in thin section. Significant differences among the three cultures are only related to the alkalis contents. The Lumea Nouă pottery …

Guidance On Carbon Capture Readiness And Applications Under Section 36 Of The Electricity Act 1989: Consultation Response, He Huppert, Mj Golding, Ma Hallworth, Et Al

School of Engineering, Computing and Mathematics

We welcome the broad thrust of the DECC’s draft guidance document on carbon capture readiness at new power stations, and of the Secretary of State’s proposals for additional requirements for carbon capture and storage. We suggest several clarifications that could usefully be provided, either in the guidance document, or in subsidiary documents. Specifically, we suggest the establishment of a process of continual review of the realistic capacity of carbon dioxide storage reservoirs and the criteria for introducing new carbon storage reservoirs. We further suggest that to allow for the rapid rate of generation of new scientific information, the following are …

Fore-Arc Motion And Cocos Ridge Collision In Central America, Peter Lafemina, Timothy Dixon, Rob Govers, Edmundo Norabuena, Henry Turner, Armando Saballos, Glen Mattioli, Marino Protti, Wilfried Strauch

School of Geosciences Faculty and Staff Publications

We present the first regional surface velocity field for Central America, showing crustal response to interaction of the Cocos and Caribbean plates. Elastic half-space models for interseismic strain accumulation on the dipping subduction plate boundary fit the GPS data well and show strain accumulation offshore and beneath the Nicoya and Osa peninsulas in Costa Rica but not in Nicaragua. Since large subduction zone earthquakes occur in Nicaragua, we suggest that interseismic locking in Nicaragua and some other parts of Central America occurs but is mainly shallow, depth, too far offshore to be detected by our on-land GPS measurements. Our data …

Water Current, Volume 41, No. 2, Spring 2009

Water Current Newsletter

Fall Symposium: Platte River Basin Science and Resource Management – October 14 and 15 in Kearney
WRAP Exploring Critical Issues
Meet the Faculty: Jesse Korus, Mehmet Can Vuran
UNL to Announce Formation of the Global Water Institute Engineering
Emerging Contaminants in Natural Waterways: Where is the Smoking Gun?
Featured Partner: NACEE: Nebraska Alliance for Conservation and Environmental Education
Protect State’s Legacy of Living Rivers
Zellmer Authors Book Chapter
Sixth Annual University of Nebraska–LincolnWater Law, Policy and Science
Conference:“Blue Gold: When Water Meets Money”April 29, 30Embassy Suites Hotel, Lincoln
Rain Gardens and Urban Stormwater Management Education in Nebraska
UNL Presenters at …

Montana Kaimin, March 11, 2009, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Inside Unlv, Diane Russell, Shane Bevell, Mamie Peers, Michelle Mouton

Inside UNLV

No abstract provided.

Finite Element Simulations Of Dynamic Shear Rupture Experiments And Dynamic Path Selection Along Kinked And Branched Faults, Elizabeth L. Templeton, Aurélie Baudet, Harsha S. Bhat, Renata Dmowska, James R. Rice, Ares J. Rosakis, Carl-Ernst Rousseau

Past Departments Faculty Publications (College of Engineering)

We analyze the nucleation and propagation of shear cracks along nonplanar, kinked, and branched fault paths corresponding to the configurations used in recent laboratory fracture studies by Rousseau and Rosakis (2003, 2009). The aim is to reproduce numerically those shear rupture experiments and from that provide an insight into processes which are active when a crack, initially propagating in mode II along a straight path, interacts with a bend in the fault or a branching junction. The experiments involved impact loading of thin Homalite‐100 (a photoelastic polymer) plates, which had been cut along bent or branched paths and weakly glued …

Annual Report Of The Grafton County Commissioners Together With The Reports From The Conservation District, County Attorney, Human Resources, Nursing Home, Sheriff's Department, Treasurer And Auditors, Unh Cooperative Extension, Corrections, Human Services, Farm, Registry Of Deeds, Information Technology, Department Of Maintenance, For The Fiscal Year Covering July 1, 2008- June 30, 2009., Grafton County Representatives

Grafton County, NH Annual Reports

This is an annual report containing vital statistics for a county in the state of New Hampshire.

The Biscayne Aquifer Of Southeastern Florida, Kevin J. Cunningham, Lee J. Florea

Earth, Environmental, and Atmospheric Sciences Faculty Publications

No abstract provided.

My Trig Book, Bruce Kessler

Mathematics Faculty Publications

This is the MATH 117 Trigonometry text developed by Dr. Bruce Kessler for the Gatton Academy of Math and Science at Western Kentucky University for the Academy sections of the course. The text has also been used in two online course offerings.

My Trig Book, Bruce Kessler

Mathematics Faculty Publications

This is the MATH 117 Trigonometry text developed by Dr. Bruce Kessler for the Gatton Academy of Math and Science at Western Kentucky University for the Math and Science sections of the course. The text has also been used in two online course offerings.

The Pecos River Hypogene Speleogenetic Province: A Basin-Scale Karst Paradigm For Eastern New Mexico And West Texas, Usa, Kevin W. Stafford, Alexander Klimchouk, Lewis Land, Marcus O. Gary

Faculty Publications

Since the mid-Tertiary, lateral migration and entrenchment of the Pecos River Valley in eastern New Mexico and west Texas, USA, has significantly influenced regional groundwater flow paths, providing a focus for ascending flow in multi-storey artesian systems and a powerful potentiometric driving force for hypogene speleogenesis. Individual occurrences of hypogene karst phenomena associated with the central Pecos River Valley are widespread throughout the greater Delaware Basin region, including development in a wide range of Permian carbonate and evaporate fades. Hypogene occurrences are well-documented as far north as Santa Rosa, New Mexico and as far south as Lake Amistad, Texas. Throughout …

Using Gis To Quantify Patterns Of Glacial Erosion On Northwest Iceland: Implications For Independent Ice Sheets, Sarah M. Principato, Jeremiah S. Johnson

Environmental Studies Faculty Publications

Glacial erosion patterns on northwest Iccliind are quantified using a Geographic Information System (GIS) in order to interpret subglacial characteristics of part of northwest Iceland affected by ice sheet glaciation. Ice scour lake density is used as a proxy for glacial erosion. Erosion classes are interpreted from variations in the density of lake basins. Lake density was calculated using two dilTerent methods: the first is sensitive to the total number of lakes in a specific area, and the second is sensitive to total lake area in a specific area. Both of these methods result in a value for lake density, …

Determination Of Geotechnical Properties Of Seafloor Sediment Using A Free Fall Penetrometer, Gopala Krishna Mulukutla

Doctoral Dissertations

A study was conducted to determine the penetration behavior of a cylindrical probe free falling to the seafloor and to utilize the data obtained to evaluate the engineering properties of surficial sediment. Two experimental probes, each equipped with accelerometers, pressure sensors and optical backscatter sensors were deployed in different sediment regimes. The data collected was used to derive the sediment type and determine physical properties such as undrained shear strength, coefficient of consolidation and shear modulus for soft fine-grained sediment.

Acceleration signals from drops of a free fall penetrometer contain information about the nature of the seafloor. A simple sediment …

Resistivity And Conductivity Studies Of The Rattlesnake Springs, New Mexico Watershed, Claudia Santiago

Open Access Theses & Dissertations

Rattlesnake Springs are a high-discharge artesian springs situated in the upper Black River Valley in southwestern Eddy Country, New Mexico. The aquifer that supplies the Rat- tlesnake Springs has been the main water source for domestic use by visitors of Carlsbad Caverns National Park and residents of neighboring ranches since the 1930s. Several ge- ological studies relying on surface geology and limited water wells had previously been conducted in the area to examine the trend of ground water flow. In this study I used con- ductivity and resistivity geophysical techniques to identify possible locations of fractures in the subsurface of …

Cenozoic Evolution Of The Gold Creek Basin, Western Montana: Mapping And Documenting The Geology Of The Rock Creek Lake 7.5' Usgs Quadrangle, Chelsea Mcraven Feeney

Graduate Student Theses, Dissertations, & Professional Papers

This thesis presents results from 1:24,000 scale surface mapping and related analysis of geology within the Rock Creek Lake 7.5’ USGS Quadrangle in western Montana. The purpose of this study is to 1) document the Cenozoic structural evolution and sedimentary fill record associated with tectonic development of the northern Flint Creek Range and, in particular, the Anaconda metamorphic core complex and 2) determine the existence and extent of Pleistocene glacial deposition in the study area. Gneissic mylonitic granodiorite along the southeastern contact of the Royal Stock intrusion indicates the Anaconda metamorphic core complex detachment zone trends through the center of …

Smu Geothermal Project: Big Ideas Grant Proposal, Andres Ruzo, Elizabeth Corey

Big iDeas 2009 Proposals

This proposal requests funding to complete a multidisciplinary comprehensive study evaluating the geologic, engineering, and financial feasibility of establishing a binary-cycle geothermal power plant on the SMU Campus.