Use of First Pelvic, Second Pelvic, and Fourth Anal Rays for Estimating Age of Muskellunge (Esox masquinongy)

While cleithra are the most popularly used calcified structure used to estimate age of Muskellunge (Esox masquinongy), the use of fin rays as an age estimation structure has been investigated as a nonlethal alternative. My objectives were to: (1) to compare the accuracy and precision of estimating age using first pelvic, second pelvic, and fourth anal rays from 46 known age Muskellunge and (2) to analyze a larger sample (n = 120) of fourth anal rays to estimate age. Ages were estimated blindly by three readers independently from all available structures. Different analyses of precision and accuracy had conflicting results, however, I would recommend the use of either the fourth anal ray or the second pelvic ray to estimate age

Integrated control system for a gas turbine engine

A control system for a turbofan engine receives signals from a number of engine sensors and from the engine operator, and generates control signals. One control signal regulates the fan exhaust nozzle area in order to control inlet throat Mach number to maintain a low level of engine noise. Additional control signals regulate fuel flow to control engine thrust and fan pitch to control fan speed. A number of schedules are utilized to maintain a predetermined relationship between the controlled parameters and a number of fixed and calculated limits can override the control signals to prevent unsatisfactory engine performance

Redefining Summary Judgment by Statute: The Legislative History of Tennessee Code Annotated Section 20-16-101

In its 2011 session, the Tennessee General Assembly purported to overrule a landmark decision of the Tennessee Supreme Court that had clarified the burden of production on summary judgment motions. The stage was set for this legislation by the November 2010 election, in which Republicans won majorities of twenty to thirteen in the State Senate and sixty-four to thirty-four (plus one GOP-leaning independent) in the House of Representatives. In addition, Bill Haslam, the Republican Mayor of Knoxville, won the election for Governor handily, leaving Republicans large and in charge and in control of the executive branch and both houses of the legislature in Tennessee for the first time since 1869. Republicans took control of power in Nashville vowing that they would govern responsibly, despite hard feelings resulting from years of Democratic control, not to mention the surprise, last-minute denial of the Speaker of the House position to the Republican leader in the 106th General Assembly. The Republican leadership stated at the outset that its top priority at the beginning of the legislative session was job creation, and this goal translated into the passage of a slew of legislative proposals friendly to the business community, many of which had stalled under the previous Democratic regime. The most notable of these was a tort reform package that limited non-economic damages to $750,000, and capped punitive damages at two times the amount of compensatory damages awarded or$500,000, whichever is greater. While this initiative and others, such as the abolition of collective bargaining for teachers, received greater public attention, the new legislative majority also set its sights on overruling certain Tennessee Supreme Court decisions that the business community had interpreted as unfriendly to its interests

Statistical summary of air quality data for metropolitian Cleveland, Ohio, 1967 - 1972: Total suspended particulates, nitrogen dioxide, and sulfur dioxide

Air-quality data for metropolitan Cleveland, Ohio, from 1967 through 1972 were collated and statistically analyzed. Total suspended particulates (TSP) departed from lognormal distribution in 1972. Nitrogen dioxide and sulfur dioxide, departed significantly from lognormal distributions in 1972. In Cleveland the Ohio standards were not met. However, the data indicate a general improvement in air quality. Unusually high precipitation (43% above the average in 1972) may be responsible in lowering these values from the 1971 levels. The mean values of TSP, NO2, and SO2 are 104, 191, and 83 microgram/cu m respectively

A Comparison of Ultraviolet, Optical, and X-Ray Imagery of Selected Fields in the Cygnus Loop

During the Astro-1 and Astro-2 Space Shuttle missions in 1990 and 1995, far ultraviolet (FUV) images of five 40' diameter fields around the rim of the Cygnus Loop supernova remnant were observed with the Ultraviolet Imaging Telescope (UIT). These fields sampled a broad range of conditions including both radiative and nonradiative shocks in various geometries and physical scales. In these shocks, the UIT B5 band samples predominantly CIV 1550 and the hydrogen two-photon recombination continuum. Smaller contri- butions are made by emission lines of HeII 1640 and OIII] 1665. We present these new FUV images and compare them with optical Halpha and [OIII], and ROSAT HRI X-ray images. Comparing the UIT images with those from the other bands provides new insights into the spatial variations and locations of these different types of emission. By comparing against shock model calculations and published FUV spectroscopy at select locations, we surmise that resonance scattering in the strong FUV permitted lines is widespread in the Cygnus Loop, especially in the bright optical filaments typically selected for observation in most previous studies.Comment: 21 pages with 10 figures. See http://www.pha.jhu.edu/~danforth/uit/ for full-resolution figure

Operating Cooperatively (OC) Sensor for Highly Specific Recognition of Nucleic Acids

Molecular Beacon (MB) probes have been extensively used for nucleic acid analysis because of their ability to produce fluorescent signal in solution instantly after hybridization. The indirect binding of MB probe to a target analyte offers several advantages, including: improved genotyping accuracy and the possibility to analyse folded nucleic acids. Here we report on a new design for MB-based sensor, called \u27Operating Cooperatively\u27 (OC), which takes advantage of indirect binding of MB probe to a target analyte. The sensor consists of two unmodified DNA strands, which hybridize to a universal MB probe and a nucleic acid analyte to form a fluorescent complex. OC sensors were designed to analyze two human SNPs and E.coli 16S rRNA. High specificity of the approach was demonstrated by the detection of true analyte in over 100 times excess amount of single base substituted analytes. Taking into account the flexibility in the design and the simplicity in optimization, we conclude that OC sensors may become versatile and efficient tools for instant DNA and RNA analysis in homogeneous solution

Transforming Special Education Teacher Education: A Reaction to the Report Transforming Teacher Education through Clinical Practice: A National Strategy to Prepare Effective Teachers

Policy makers, university teacher education faculty, school leaders, and government officials are asking the same question: How do we recruit, prepare, and retain effective teachers who will produce desired student outcomes in every classroom? This complex question garners distinct opinions depending on the queried stakeholder, but most agree that significant improvement is needed in the processes of teacher preparation and induction (Darling-Hammond, 2010; Greer & Meyen, 2009; Sykes, Bird, & Kennedy, 2010; Wang, Odell, Klecka, Spalding, & Lin, 2010). An argument can be made that the need for improvement is most urgent within the field of special education teacher preparation (Brownell, Sindelar, Kiely, & Danielson, 2010; Piper, 2007; Pugach, Blanton, & Correa, 2011; Simonsen et al., 2010; Sindelar, Brownell, & Billingsley, 2010) . To illustrate, recent achievement data for students with disabilities provides striking evidence of the critical need for improvement in areas of literacy, graduation rates, and other postsecondary outcomes (e.g. National Center for Education Statistics [NCES], 2009; Wagner, Newman, Cameto, Levine, & Garza, 2006). There is substantial variability in the numerous factors that contribute to the struggles of students with exceptionalities on measures of academic and social success (see Skiba, Poloni-Staudinger, Simmons, Feggins-Azziz, & Chung, 2005; Wagner et al., 2006). Many complex factors influence a teacher's impact on student achievement, which leads to the need for us to continue to examine and reform our current models of teacher preparation. Thus, teacher educators and practitioners must continue to investigate and evaluate the effects of new and existing policies, programmatic structures, and individual practices on outcomes of interest and disseminate those findings. Although calls to reform teacher education and P-12 instruction for children with exceptionalities are not new (Vaughn & Fuchs, 2003), it is clear that new thinking is needed to overcome traditional barriers to academic and social success for individuals with exceptionalities. However, despite the critical need for improvement, teacher preparation models within special and general education largely remain fixed to traditional methods that reflect the status quo as opposed to evidence-based practice (Boyd, Grossman, Lankford, Loeb, & Wycoff, 2009; Brownell, Griffin, Leko, & Stephens, 2011; Sykes et al., 2010)

XMM-Newton observations of the supernova remnant IC443: I. soft X-ray emission from shocked interstellar medium

The shocked interstellar medium around IC443 produces strong X-ray emission in the soft energy band (E<1.5 keV). We present an analysis of such emission as observed with the EPIC MOS cameras on board the XMM-Newotn observatory, with the purpose to find clear signatures of the interactions with the interstellar medium (ISM) in the X-ray band, which may complement results obtained in other wavelenghts. We found that the giant molecular cloud mapped in CO emission is located in the foreground and gives an evident signature in the absorption of X-rays. This cloud may have a torus shape and the part of torus interacting with the IC443 shock gives rise to 2MASS-K emission in the southeast. The measured density of emitting X-ray shocked plasma increases toward the northeastern limb, where the remnant is interacting with an atomic cloud. We found an excellent correlation between emission in the 0.3-0.5 keV band and bright optical/radio filament on large spatial scales. The partial shell structure seen in this band therefore traces the encounter with the atomic cloud.Comment: 10 pages, 10 figures, accepted for publication in ApJ (20 September 2006, v649). For hi-res figures, see http://www.astropa.unipa.it/Library/OAPA_preprints/ic443ele1.ps.g

Diffuse Atomic and Molecular Gas near IC443

We present an analysis of results on absorption from Ca II, Ca I, K I, and the molecules CH+, CH, C2, and CN that probes gas interacting with the supernova remnant IC443. The eleven directions sample material across the visible nebula and beyond its eastern edge. Most of the neutral material, including the diatomic molecules, is associated with the ambient cloud detected via H I and CO emission. Analysis of excitation and chemistry yields gas densities that are typical of diffuse molecular gas. The low density gas probed by Ca II extends over a large range in velocities, from -120 to +80 km/s in the most extreme cases. This gas is distributed among several velocity components, unlike the situation for the shocked molecular clumps, whose emission occurs over much the same range but as very broad features. The extent of the high-velocity absorption suggests a shock velocity of 100 km/s for the expanding nebula.Comment: To be published in Ap