This is the standard operating procedure used by the Isotope Ratio Mass Spectrometry Group of the Chemical Sciences Division at LLNL for the preparation of a sample of uranium oxide or uranium metal for {sup 230}Th-{sup 234}U age-dating. The method described here includes the dissolution of a sample of uranium oxide or uranium metal, preparation of a secondary dilution, spiking of separate aliquots for uranium and thorium isotope dilution measurements, and purification of uranium and thorium aliquots for mass spectrometry. This SOP may be applied to uranium samples of unknown purity as in a nuclear forensic investigation, and also to well-characterized samples such as, for example, U{sub 3}O{sub 8} and U-metal certified reference materials. The sample of uranium is transferred to a quartz or PFA vial, concentrated nitric acid is added and the sample is heated on a hotplate at approximately 100 C for several hours until it dissolves. The sample solution is diluted with water to make the solution approximately 4 M HNO{sub 3} and hydrofluoric acid is added to make it 0.05 M HF. A secondary dilution of the primary uranium solution is prepared. Separate aliquots for uranium and thorium isotope dilution measurements are taken and spiked with …

Correspondence issued by the Government Accountability Office with an abstract that begins "Older electricity generating units—those that began operating in or before 1978—provided 45 percent of electricity from fossil fuel units in 2010 but produced a disproportionate share of emissions, both in aggregate and per unit of electricity generated. Overall, in 2010 older units contributed 75 percent of sulfur dioxide emissions, 64 percent of nitrogen oxides emissions, and 54 percent of carbon dioxide emissions from fossil fuel units. For each unit of electricity generated, older units collectively emitted about 3.6 times as much sulfur dioxide, 2.1 times as much nitrogen oxides, and 1.3 times as much carbon dioxide as newer units. The difference in emissions between older units and their newer counterparts may be attributed to a number of factors. First, 93 percent of the electricity produced by older fossil fuel units in 2010 was generated by coal-fired units. Compared with natural gas units, coal-fired units produced over 90 times as much sulfur dioxide, twice as much carbon dioxide and over five times as much nitrogen oxides per unit of electricity, largely because coal contains more sulfur and carbon than natural gas. Second, fewer older units have installed emissions controls, …

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.

This presentation was for a panel session with librarians from school, public, academic, and the North Texas Library Partners (NTLP) at the Texas Library Association (TLA) annual conference. In this presentation, the authors discuss collaboration strategies during difficult financial periods and funding cuts.

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Cuero, Texas that includes local, state and national news along with advertising.

Conversion of biomass to sugars plays a central in reducing our dependence on petroleum, as it allows production of a wide range of biobased fuels and chemicals, through fermentation of those sugars. The DECREASE project delivers an effective enzyme cocktail for this conversion, enabling reduced costs for producing advanced biofuels such as cellulosic ethanol. Benefits to the public contributed by growth of the advanced biofuels industry include job creation, economic growth, and energy security. The DECREASE primary project objective was to develop a two-fold improved enzyme cocktail, relative to an advanced cocktail (CZP00005) that had been developed previously (from 2000- 2007). While the final milestone was delivery of all enzyme components as an experimental mixture, a secondary objective was to deploy an improved cocktail within 3 years following the close of the project. In February 2012, Novozymes launched Cellic CTec3, a multi-enzyme cocktail derived in part from components developed under DECREASE. The externally validated performance of CTec3 and an additional component under project benchmarking conditions indicated a 1.8-fold dose reduction in enzyme dose required for 90% conversion (based on all available glucose and xylose sources) of NREL dilute acid pretreated PCS, relative to the starting advanced enzyme cocktail. While the …

Testimony issued by the Government Accountability Office with an abstract that begins "Recent GAO work found that funding increases have expanded or created Department of Energy (DOE) programs with varying results. For example:"

Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

Testimony issued by the Government Accountability Office with an abstract that begins "GAO’s recent work highlights the types of challenges facing the Department of Defense (DOD) as it strives to attain audit readiness and reengineer its business processes and systems. The urgency in addressing these challenges has been increased by the goals of an auditable DOD Statement of Budgetary Resources (SBR) by the end of fiscal year 2014 and a complete set of auditable financial statements by the end of fiscal year 2017. For example, GAO’s 2011 reporting highlights difficulties the DOD components experienced in attempting to achieve an auditable SBR. These include:"

Issues concerning and which can be influenced by Congress regarding unemployment rates.

Concert Orchestra concert performed at the UNT College of Music Winspear Hall.

UNT Orchestra concert performed at the UNT College of Music Winspear Hall.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

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Correspondence issued by the Government Accountability Office with an abstract that begins "Employee Performance Standards for the Timely Review of Medical Product Applications:"

Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Graduate Artist Certificate in Music Performance.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.