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453 Matching Results
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Understanding the Role of O-GlcNAc Modifications in Plant Development
This project has contributed towards understanding the role of O-GlcNAc (O-linked N-acetylglucosamine) transferases (OGTs) in plants. Through analyses of single and double mutants, we have investigated the unique and overlapping functions of SECRET AGENT (SEC) and SPINDLY (SPY), the arabidopsis OGTs. This work showed that SEC functions as negative regulators of the long-day flowering pathway. SEC also has a positive role in regulation of rosette. An E. coli co-expression system that allows potential substrates to be co-expressed with and O-GlcNAc modified by SEC was developed. We showed that SEC is a bona fide OGT that modifies itself with single O-linked GlcNAc(s). Using this system, we tested a number of proteins that were hypothesized to be substrates of SEC and identified a number of substrates include GIGANTEA (GI), a component of the long day flowering pathway. The hypothesis that O-GlcNAc modification controls GI activity was tested by first mapping where E. coli-expressed SEC modifies GI and then assessing the activity of a non-modifiable mutant form of GI. The activity of the mutant form of GI was indistinguishable from that of wild type suggesting that either O-GlcNAc does not regulate GI activity or that additional modification sites exist on GI. In collaboration …
Date:
June 16, 2011
Creator:
Olszewski, Neil, E.
Object Type:
Report
System:
The UNT Digital Library
Capture and Sequestration of CO2 at the Boise White Paper Mill
This report documents the efforts taken to develop a preliminary design for the first commercial-scale CO2 capture and sequestration (CCS) project associated with biomass power integrated into a pulp and paper operation. The Boise Wallula paper mill is located near the township of Wallula in Southeastern Washington State. Infrastructure at the paper mill will be upgraded such that current steam needs and a significant portion of the current mill electric power are supplied from a 100% biomass power source. A new biomass power system will be constructed with an integrated amine-based CO2 capture plant to capture approximately 550,000 tons of CO2 per year for geologic sequestration. A customized version of Fluor Corporation’s Econamine Plus™ carbon capture technology will be designed to accommodate the specific chemical composition of exhaust gases from the biomass boiler. Due to the use of biomass for fuel, employing CCS technology represents a unique opportunity to generate a net negative carbon emissions footprint, which on an equivalent emissions reduction basis is 1.8X greater than from equivalent fossil fuel sources (SPATH and MANN, 2004). Furthermore, the proposed project will offset a significant amount of current natural gas use at the mill, equating to an additional 200,000 tons of …
Date:
June 16, 2010
Creator:
McGrail, B. P.; Freeman, C. J.; Beeman, G. H.; Sullivan, E. C.; Wurstner, S. K.; Brown, C. F. et al.
Object Type:
Report
System:
The UNT Digital Library
High current and high power fast kicker system conceptual design and technology overview for DeeMe experiment
N/A
Date:
June 16, 2013
Creator:
Zhang, W.; Meng, W.; Pai, C.; Pile, P.; Sandberg, J.; Snydstrup, L. et al.
Object Type:
Article
System:
The UNT Digital Library
Multinozzle Emitter Arrays for Nanoelectrospray Mass Spectrometry
Mass spectrometry (MS) is the enabling technology for proteomics and metabolomics. However, dramatic improvements in both sensitivity and throughput are still required to achieve routine MS-based single cell proteomics and metabolomics. Here, we report the silicon-based monolithic multinozzle emitter array (MEA), and demonstrate its proof-of-principle applications in high-sensitivity and high-throughput nanoelectrospray mass spectrometry. Our MEA consists of 96 identical 10-nozzle emitters in a circular array on a 3-inch silicon chip. The geometry and configuration of the emitters, the dimension and number of the nozzles, and the micropillar arrays embedded in the main channel, can be systematically and precisely controlled during the microfabrication process. Combining electrostatic simulation and experimental testing, we demonstrated that sharpened-end geometry at the stem of the individual multinozzle emitter significantly enhanced the electric fields at its protruding nozzle tips, enabling sequential nanoelectrospray for the high-density emitter array. We showed that electrospray current of the multinozzle emitter at a given total flow rate was approximately proportional to the square root of the number of its spraying-nozzles, suggesting the capability of high MS sensitivity for multinozzle emitters. Using a conventional Z-spray mass spectrometer, we demonstrated reproducible MS detection of peptides and proteins for serial MEA emitters, achieving sensitivity and …
Date:
June 16, 2011
Creator:
Mao, Pan; Wang, Hung-Ta; Yang, Peidong & Wang, Daojing
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 75, Ed. 1 Thursday, June 16, 2011
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 41, No. 233, Ed. 1 Wednesday, June 16, 2010
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 233, Ed. 1 Thursday, June 16, 2011
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 74, Ed. 1 Thursday, June 16, 2011
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 34, No. 71, Ed. 1 Wednesday, June 16, 2010
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 73, Ed. 1 Thursday, June 16, 2011
Free weekly newspaper that includes business and classified advertising.
Date:
June 16, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
A fast, high voltage, high frequency modulator at BNL
N/A
Date:
June 16, 2013
Creator:
Y., Tan; Mi, J.-L.; Ritter, J.; Sandberg, J. & Zhang, W.
Object Type:
Article
System:
The UNT Digital Library
Navy Ship Names: Background for Congress
This report discusses the process of naming Navy ships, which have traditionally been chosen and announced by the Secretary of the Navy. Rules for giving certain types of names to certain types of Navy ships have evolved over time.
Date:
June 16, 2016
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
North American Leaders' Summit
This report discusses the North American Leaders' Summits (NALS), a trilateral summit that meets in effort to increase cooperation on broader economic and security issues between the United States, Canada, and Mexico.
Date:
June 16, 2016
Creator:
Villarreal, M. Angeles
Object Type:
Report
System:
The UNT Digital Library
Orlando Nightclub Mass Shooting: Gun Checks and Terrorist Watchlists
This report discusses the policy climate surrounding gun control in the wake of the attack in an Orlando, Florida nightclub. On June 12, 2016, an armed assailant killed 49 people and wounded over 50 others in the club.
Date:
June 16, 2016
Creator:
Krouse, William J.
Object Type:
Report
System:
The UNT Digital Library
The Department of the Interior's Final Rule on Offshore Well Control
This report discusses regulations regarding blowout preventer systems and well control for oil and gas operations on the U.S. outer continental shelf (81 Fed. Reg. 25887). The regulations aim to reduce the risk of an offshore oil or gas blowout that could jeopardize human safety and harm the environment.
Date:
June 16, 2016
Creator:
Comay, Laura B.
Object Type:
Report
System:
The UNT Digital Library
Evaluating Twittervane: Project Final Report
This report provides the final update on the Twittervane project, a prototype application capable of collecting and analyzing Twitter feeds and outputting URLs mentioned in the Tweets.
Date:
June 16, 2013
Creator:
Pitt, Mary & Hockx-Yu, Helen
Object Type:
Report
System:
The UNT Digital Library
Remarks on Some Engineering Methods and Their Limits
The author makes the point that engineering practice and the mathematical modelling applied to engineering problems are different and that mathematical solutions that exist for engineering problems are incomprehensible to engineers. Two practical examples are presented to illustrate the point: parameter fitting error estimates and oscillator design. Some insights are offered to help translate between the languages of mathematics and engineering.
Date:
June 16, 2011
Creator:
Odyniec, M.
Object Type:
Article
System:
The UNT Digital Library
Technology and Manufacturing Readiness of Early Market Motive and Non-Motive Hydrogen Storage Technologies for Fuel Cell Applications
PNNL’s objective in this report is to provide DOE with a technology and manufacturing readiness assessment to identify hydrogen storage technologies’ maturity levels for early market motive and non-motive applications and to provide a path forward toward commercialization. PNNL’s Technology Readiness Assessment (TRA) is based on a combination of Technology Readiness Level (TRL) and Manufacturing Readiness Level (MRL) designations that enable evaluation of hydrogen storage technologies in varying levels of development. This approach provides a logical methodology and roadmap to enable the identification of hydrogen storage technologies, their advantages/disadvantages, gaps and R&D needs on an unbiased and transparent scale that is easily communicated to interagency partners. The TRA report documents the process used to conduct the TRA, reports the TRL and MRL for each assessed technology and provides recommendations based on the findings.
Date:
June 16, 2012
Creator:
Ronnebro, Ewa
Object Type:
Report
System:
The UNT Digital Library
Accelerator fast kicker R and D with ultra compact 50 MVA nano-second FID pulse generator
N/A
Date:
June 16, 2013
Creator:
Zhang, W.; Fischer, W.; Hahn, H.; Liaw, C. J.; Sandberg, J. & Tuozzolo, J.
Object Type:
Article
System:
The UNT Digital Library
EPA Releases First Ever National Wetland Condition Assessment
This presentation provides an overview of the National Aquatic Resource Survey (NARS), including background information, accomplishments, and milestones.
Date:
June 16, 2016
Creator:
United States. Environmental Protection Agency.
Object Type:
Text
System:
The UNT Digital Library
The Gilmer Mirror (Gilmer, Tex.), Vol. 139, No. 24, Ed. 1 Thursday, June 16, 2016
Weekly newspaper from Gilmer, Texas that includes local, state and national news along with advertising.
Date:
June 16, 2016
Creator:
Parker, Vic
Object Type:
Newspaper
System:
The Portal to Texas History
Texas Register, Volume 42, Number 24, Pages 3041-3204, June 16, 2017
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
June 16, 2017
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Van Zandt News (Wills Point, Tex.), Vol. 33, No. 6, Ed. 1 Sunday, June 16, 2013
Weekly newspaper from Wills Point, Texas that includes local, state, and national news along with advertising.
Date:
June 16, 2013
Creator:
Vaughan, Julie
Object Type:
Newspaper
System:
The Portal to Texas History
ETS Corpus of Non-Native Written English
Access:
Use of this item is restricted to the UNT Community
ETS Corpus of Non-Native Written English was developed by Educational Testing Service and is comprised of 12,100 English essays written by speakers of 11 non-English native languages as part of an international test of academic English proficiency, TOEFL (Test of English as a Foreign Language). The test includes reading, writing, listening, and speaking sections and is delivered by computer in a secure test center. This release contains 1,100 essays for each of the 11 native languages sampled from eight topics with information about the score level (low/medium/high) for each essay. The corpus was developed with the specific task of native language identification in mind, but is likely to support tasks and studies in the educational domain, including grammatical error detection and correction and automatic essay scoring, in addition to a broad range of research studies in the fields of natural language processing and corpus linguistics. For the task of native language identification, the following division is recommended: 82% as training data, 9% as development data and 9% as test data, split according to the file IDs accompanying the data set.
Date:
June 16, 2014
Creator:
Blanchard, Daniel; Tetreault, Joel; Higgins, Derrick; Cahill, Aoife & Chodorow, Martin
Object Type:
Dataset
System:
The UNT Digital Library