Digital Commons Network^™

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 …

Statistics Collection Development Policy, David C. Tyler

University of Nebraska-Lincoln Libraries: Collection Development Policies

The statistics collection supports the teaching, research, and service activities of the entire university community. Its primary audience is the faculty, staff, and students of the Department of Statistics in the College of Arts and Sciences and the Institute of Agriculture and Natural Resources. Its primary focus is support for the undergraduate and graduate curricula for statistics; its secondary focus is support for research and teaching in biometrics and bioinformatics. Specific and transient research needs of statistics faculty and graduate students should be supplemented through Interlibrary Loan. Materials are not purchased for the general public, though they may benefit from …

Quantity Of Parental Involvement: The Influence Of The Level Of Education Attainment Of Elementary Private School Parents, Deborah Kay Secord

Doctoral Dissertations and Projects

The purpose of this research was to determine the influence of the custodial parents' level of educational attainment on the quantity of parental involvement in the areas of assistance with homework, time spent in home activities with the child, communication with teachers, participation in school events, educational discussions with the child, and time volunteered in school. Questionnaires were sent out to the parents of elementary students at two private faith-based institutions. The combined number of participants was 151. The researcher determined that there was no significant influence among these private school parents of the level of educational attainment on the …

Isolation And X-Ray Structural Characterization Of A Dicationic Homotrimer Of 2,3,6,7-Tetramethoxy-9,10-Dimethylanthracene Cation Radical, Matthew J. Modjewski, Ruchi Shukla, Sergey V. Lindeman, Rajendra Rathore

Chemistry Faculty Research and Publications

Electrochemical oxidation of 2,3,6,7-tetramethoxy-9,10-dimethylanthracene (1) showed that it undergoes a highly reversible electrochemical oxidation (E_ox = 0.81 V vs SCE) and forms a modestly stable cation-radical salt in solution. X-ray crystallography established that 1⁺SbCl₆^- crystallizes as a (centrosymmetric) dicationic homotrimer via a close cofacial association of a pair of cationic and one neutral molecule of 1 with an interplanar separation of ∼3.2 Å. The structure of the dicationic homotrimer was also reproduced by DFT calculations. Furthermore, the structure of a dicationic spiro adduct, formed by a slow decomposition of a solution of 1^{+ …}

College Of Engineering Senior Design Competition Fall 2009, University Of Nevada, Las Vegas

Fred and Harriet Cox Senior Design Competition Projects

Each student in his or her senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. The senior design project encourages the student to use everything learned in the engineering program to create a practical, real-world solution to an engineering challenge.

A highlight of the year-long senior design project is the senior design competition. This competition, which usually takes place the week before finals each semester, helps focus the senior students on increasing the quality and potential for commercial application for their design projects.

Judges from local industry evaluate the projects on innovation, commercial …

Warning Based Browser Extension To Protect User Data Against Phishing Attacks, Sree Rama Konduri

Theses and Dissertations

There are currently many anti-phishing tools to combat against the phishing and web scams. Many of which are browser extensions that warn users when they are using suspected phishing websites. But most of the users are ignoring the warnings of the phishing site and providing their valuable credentials. Therefore, the focus of this research is to develop a browser extension, which manipulates the user credentials, whenever a user ignores anti-phishing tools warnings about malicious websites. This browser extension will protect user's information from being handed to attackers.

Interview With Jim Quinn, Metro's Hazardous Waste Program, 2009 (Audio), Jim Quinn

All Sustainability History Project Oral Histories

Interview of Jim Quinn by Sean Quigley at Metro in Portland, Oregon on December 2nd, 2009.

The interview index is available for download.

Creation Of Soil Liquefaction Susceptibility Maps For San Luis Obispo & Marin Counties Using Geographic Information Systems., Amelia M. Lowman

Earth and Soil Sciences

Liquefaction of soils in response to earthquake shaking is a pressing issue in the state of California. Using Geographic Information Systems, Geological and lithology layers, along with criteria in order to separate out the data into four risk categories, a liquefaction risk assessment map was created for San Luis Obispo and Marin Counties. The accuracy of these maps was then assessed using liquefaction occurrences for San Luis Obispo County, and it was determined that while the map is somewhat accurate, in order to obtain a greater amount of accuracy and increase the usefulness of these maps, more data would need …

Cal Poly Mid-Year Commencement Set For Dec. 12, Public Affairs Office

Press Releases

No abstract provided.

Overexpression And Partial Purification Of Serine Hydroxymethyltransferase, Kimberly Rose Stevens

Chemistry and Biochemistry

No abstract provided.

Development Of Regional Hydraulic Geometry Curves For The Santa Cruz Mountains, Sarah Howell

Natural Resources Management and Environmental Sciences

This study was conducted to develop regional hydraulic geometry curves for the Santa Cruz Mountains that could be used in stream related and/or engineering projects. Data used to form these curves was collected from the USGS and by conducting stream geometry surveys. The resulting regional curves had high R² values ranging from .82 to .92. Compared to other regional curves in nearby areas, the Santa Cruz Mountains regional curve equations have higher exponents, meaning bankfull channel measurements increase at faster rates as drainage areas increases. Further measurements and analysis should be done before applying these curves to project sites.

2,5-Dichlorothiophene 1,1-Dioxide, Jonathan B. Briggs, Wenling Jia, Mikael D. Jazdzyk, Glen P. Miller

Chemistry

The complete molecule of the title compound, C(4)H(2)Cl(2)O(2)S, is generated by crystallographic twofold symmetry, with the S atom lying on the rotation axis. In the crystal, the molecules are linked by C-H center dot center dot center dot O hydrogen bonds..

Distribution And Diversity Of Archaeal And Bacterial Ammonia Oxidizers In Salt Marsh Sediments, Nicole S. Moin, Katelyn A. Nelson, Alexander Bush, Anne E. Bernhard

Biology Faculty Publications

Diversity and abundance of ammonia-oxidizing Betaproteobacteria (β-AOB) and archaea (AOA) were investigated in a New England salt marsh at sites dominated by short or tall Spartina alterniflora (SAS and SAT sites, respectively) or Spartina patens (SP site). AOA amoA gene richness was higher than β-AOB amoA richness at SAT and SP, but AOA and β-AOB richness were similar at SAS. β-AOB amoA clone libraries were composed exclusively of Nitrosospira-like amoA genes. AOA amoA genes at SAT and SP were equally distributed between the water column/sediment and soil/sediment clades, while AOA amoA sequences at SAS were primarily affiliated with the …

Partially Coherent Standard And Elegant Laguerre-Gaussian Beams Of All Orders, Fei Wang, Yangjian Cai, Olga Korotkova

Physics Articles and Papers

Partially coherent standard and elegant Laguerre-Gaussian (LG) beams of all orders are introduced as a natural extension of coherent standard and elegant LG beams to the stochastic domain. By expanding the LG modes into a finite sum of Hermite-Gaussian modes, the analytical formulae are obtained for the cross-spectral densities of partially coherent standard and elegant LG beams in the source plane and after passing through paraxial ABCD optical system, based on the generalized Collins integral formula. A comparative study of the propagation properties of the partially coherent standard and elegant LG beams in free space is carried out via a …

The Classic, Winter 2009-2010, Public Relations

The Classic, 2000-2009

Zwemer View: A Mission to Live By; In Box; Eight Is Enough; Break for Missions; Crack Coders; Tough Decisions; Winning Hymn; Wrapped in Warmth; Of Course: Connected; Extreme Singing; Prof Appointments; Major Excellence; On the Road; To New Orleans With Love; Alumni Director Search; Vocation Connection; Face Value: Sara Sybesma Tolsma; Red Zone; First Dance; 1000 Words: Home Sweet Home; Free to Be: Students with disabilities thrive at Northwestern; Raider Romance; Honored: Four receive distinguished alumni awards: Darlene (De Beer '52) Vander Aarde, Jean (Tallman '75) and Drew Vogel '72, Randy Oostra '77; Red Weekend; Class Notes; New Arrivals; Marriages; …

Impact Of Parent’S Hiv Status On Their Uninfected Child—A Comparative Analysis Of The Child’S Healthcare Utilization, Access And Health Outcomes, Arijit Ganguli

Theses and Dissertations (ETD)

With the advent of effective antiretroviral medication and increased expectancy of life span among HIV-infected individuals has lead to an increase in the at-risk population of uninfected children living with their HIV-infected parent(s). The purpose of this study was to investigate the impact of parent’s HIV status on their child’s access to healthcare resources, healthcare utilization and health outcomes.

This was a cross-sectional study in which the information on the children of HIV seropositive parent(s) was collected through a face-to-face interview of the HIV-infected parents having children currently residing with them. The comparative group comprising of children of HIV seronegative …

Structural Characterization Of The C-Terminus Of The Cochlear Motor Protein Prestin: Intrinsic Disorder Linked To Voltage Sensor Function, Michael S. Podgorski

Theses and Dissertations (ETD)

The sensitivity of mammalian hearing relies upon the ability to amplify sound. Outer hair cells (OHCs) in the cochlea have motile properties that support this function. The motor protein called prestin resides in the lateral wall of the OHCs. Prestin undergoes voltage-dependent conformational changes, which correlates to the movement of charge through the membrane or non-linear capacitance (NLC). This property underlies OHC electromotility. A mechanistic understanding of prestin’s function remains unknown. Previous research has tied prestin’s C-terminus (residues 499-799) to the voltage-dependent events that occur in the membrane. The folding and biochemical properties of prestin’s C-terminus were characterized. This information …

Gsu Math Educators Teach Teachers At Conference, Office Of Public Affairs

Press Releases

Teaching math today is much more than demonstrating long division and graphing points on a chalkboard. Today’s educators need to know how to use the tools that make teaching and learning math as up-to-date as possible.

Recently, future mathematics teacher Troy Knoblauch of Bourbonnais presented a 90-minute workshop at the Illinois Council of Teachers of Mathematics (ICTM) annual conference in Peoria, Illinois on “An introduction to Geometry on the TiNspire Graphing Calculator.”

Presenting with Knoblauch was Dr. Dianna Galante, associate professor of mathematics at Governors State University. Knoblauch is a student in the Bachelor of Arts in Mathematics Teacher Education …

The Cresset (Vol. Lxxiii, No. 2, Advent/Christmas), Valparaiso University

The Cresset (archived issues)

No abstract provided.

Gender Differences In Output Quality And Quantity Under Competition And Time Constraints: Evidence From A Pilot Study, Olga Shurchkov

Fondazione Eni Enrico Mattei Working Papers

Gender gaps in income and level of position in the workplace are widespread. One explanation for this inequality is that the genders perform differently under competitive conditions, as previous experimental studies have found a significant gender gap in competitive tasks that are perceived to favor men. In this paper, we use a verbal task that is perceived to favor women and find no gender difference under competition per se. We also reject the hypothesis that a .stereotype threat. explains the inability of women to improve performance under competition. We propose an alternative explanation for gender inequality: namely, that women and …

Non-Bossy Social Classifcation, Dinko Dimitrov, Clemens Puppe

Fondazione Eni Enrico Mattei Working Papers

We consider the problem of how societies should be partitioned into classes if individuals express their views about who should be put with whom in the same class. A non-bossiness condition makes the social aggregator dependent only on those cells of the individual partitions the society members classify themselves in. This information is used to construct for each profile of views an opinion graph. By means of natural sovereignty and liberalism requirements, we characterize the non-bossy aggregators generating partitions in which the social classes are refinements of the connected components in the opinion graph.

Sfa Weather Station-December 2009, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University

Weather Station Data

No abstract provided.

On Neutral Absorption And Spectral Evolution In X-Ray Binaries, J. M. Miller, E. M. Cackett, R. C. Reis

Physics and Astronomy Faculty Research Publications

Current X-ray observatories make it possible to follow the evolution of transient and variable X-ray binaries across a broad range in luminosity and source behavior. In such studies, it can be unclear whether evolution in the low-energy portion of the spectrum should be attributed to evolution in the source, or instead to evolution in neutral photoelectric absorption. Dispersive spectrometers make it possible to address this problem. We have analyzed a small but diverse set of X-ray binaries observed with the Chandra High Energy Transmission Grating Spectrometer across a range in luminosity and different spectral states. The column density in individual …

Well-Posedness Of Minimal Time Problem With Constant Dynamics In Banach Spaces, Giovanni Colombo, Vladimir V. Goncharov, Boris S. Mordukhovich

Mathematics Research Reports

This paper concerns the study of a general minimal time problem with a convex constant dynamic and a closed target set in Banach spaces. We pay the main attention to deriving efficient conditions for the major well-posedness properties that include the existence and uniqueness of optimal solutions as well as certain regularity of the optimal value function with respect to state variables. Most of the results obtained are new even in finite-dimensional spaces. Our approach is based on advanced tools of variational analysis and generalized differentiation.

Asian Maths Whizz And Talkative Females: How Stereotypes Can Actually Boost Performance, Knowledge@Smu

Knowledge@SMU

Nobody likes to be pigeonholed or reduced to a single stereotype. One reason could be because we believe ourselves to be products of multiple stereotypes: a combination of identities, such as "Asian", "female", "lawyer", "Gen X", "Christian", "Chinese", etc. While these labels connect us to like-individuals, they can also carry all sorts of connotations and expectations – positive, neutral and negative. For example, an Asian might be expected to outperform a non-Asian at mathematics because of stereotypes that Asians are mathematically inclined. Will such undue expectations affect the Asian's performance outcome? Research studies point to a 'Yes'.

Synthesis And Cytotoxic Analysis Of Some Disodium 3Β,6Β-Dihydroxysterol Disulfates, Jianguo Cui, Hui Wang, Yi Xin, Aimin Zhou

Chemistry Faculty Publications

Disodium 3β,6β-dihydroxy-5α-cholestane disulfate (1) was synthesized in 4 steps with a high overall yield from cholesterol. First, cholesterol (4a) was converted to cholest-4-en-3,6-dione (5a) via oxidation with pyridinium chlorochromate (PCC) and then 5a was reduced by NaBH4 in the presence of NiCl2 to produce cholest-3β,6β-diol (6a). The reaction of 6a with the triethylamine-sulfur trioxide complex generated diammonium 3β,6β-dihydroxy-5α-cholestane disulfate (7a) and the treatment of 7a by cation exchange resin 732 (sodium form)(Na+) yielded the target steroid 1. Disodium 24-ethyl-3β,6β-dihydroxycholest-22-ene disulfate (2) and disodium 24-ethyl-3β,6β-dihydroxycholestane disulfate (3) were synthesized using a similar method. The cytotoxicity of these compounds against Sk-Hep-1 (human …

A Precise Analysis Of A Class E Amplifier, Brett Klehn

Theses

An analytical approach to the design and simulation of a Class-E power amplifier under typical high frequency switching conditions is presented. The analysis will optimize the loading network at the output for transistors with an exponential transition current, while accounting for harmonics injected into the circuit from the choke inductor and a non-infinite output Q. Two methods have been successfully implemented to simulate the class-E amplifier waveforms, optimize the required circuit components, and calculate amplifier performances such as efficiency and total harmonic distortion (THD). The first optimizes the circuit parameters while considering finite choke inductances, drain current fall time, and …

Campus Assembly Minutes 12/01/2009, Campus Assembly

Campus Assembly

No abstract provided.

Winter 2009, Marisela Cadena-Smith

Connection

The Official Community Newsletter for Collin College Connection is the college's award-winning community newsletter published three times a year to inform members of the Collin County community about college news, awards, events, and more.

Winter / Spring 2010, Marisela Cadena-Smith

Connection

The Official Community Newsletter for Collin College Connection is the college's award-winning community newsletter published three times a year to inform members of the Collin County community about college news, awards, events, and more.