10,003 research outputs found

    Electron-temperature dependence of dissociative recombination of electrons with CO(+)-(CO)n-series ions

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    A microwave afterglow mass spectrometer apparatus is used to determine the dependence on electron temperature T sub e of the recombination coefficients alpha sub n of the dimer and trimer ions of the series CO+.(CO) sub n. It is found that alpha sub 1 = (1.3 + or - 0.3)x 0.000001 (T sub e(K)/300) to the -0.34; and alpha sub 2 = (1.9 + or - 0.4)x 0.000001 (T sub e(K)/300) to the -0.33 cu cm/sec. These dependences on T sub e are quite different from those obtained previously for polar-cluster ions of the hydronium and ammonium series but are similar to that for simple diatomic ions

    School Food Environments and Policies in U.S. Public Schools

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    Examines food environments in elementary, middle, and high schools based on seventeen factors, including foods and beverages offered, the availability of vending machines, and how they vary by grade level, location, and other school characteristics

    Cultural Resources Monitoring Investigations for the San Antonio Water Systems (SAWS) Silverhorn Rehabilitation Project San Antonio, Bexar County, Texas

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    Raba Kistner, Inc. (RKI), was contracted by K Friese + Associates (CLIENT) to conduct cultural resources monitoring investigations for the San Antonio Water Systems (SAWS) Silverhorn Rehabilitation Project in northern San Antonio, Bexar County, Texas. The project involved rehabilitating 3,690 linear feet of existing sewer line within the Silverhorn Golf Club, which is within the Walker Ranch National Register District. The majority of the proposed undertaking was conducted by non-invasive methods (i.e., cured-in-place-pipe (CIPP)); however, point repairs involving excavations were conducted in areas where broken pipe was encountered. Given that the proposed undertaking is located on lands owned by the City of San Antonio (COSA), and because COSA is a political subdivision of the State of Texas, the project falls under the jurisdiction of Chapter 35 of the Unified Development Code (UDC) of the City of San Antonio, as well as the Antiquities Code of Texas (ACT). The UDC is regulated by the COSA Office of Historic Preservation (OHP), while the ACT is administered by the Texas Historical Commission (THC). Cultural resources investigations for the project were conducted on January 11, 12, and 24, 2020. Jason M. Whitaker served as Principal Investigator and Project Manager for the duration of the project, and all fieldwork was completed by Jason M. Whitaker and Christopher Matthews. All work was conducted in accordance with the standards set forth by the Council of Texas Archeologists and adopted by the Texas Historical Commission, under Texas Antiquities Committee Permit Number 9220. The overall undertaking consisted of the rehabilitation of approximately 3,690 linear feet of existing sewer line within the Silverhorn Golf Club. The majority of the project area was rehabilitated through the use of cured-in-place-pipe (CIPP) with no subsurface impacts. However, four areas along the 3,960 sewer line alignment were in need of point repairs which required subsurface excavations. For archaeological purposes, the Area of Potential Effects (APE) was comprised of four areas where subsurface excavations were conducted. Excavation within the APE areas were comprised of a single backhoe trench measuring approximately 22.3 by 13.1 feet (6.8 meters [m] by 4.0 m) and three 5-inch diameter boreholes. The combined area of impact of the APE areas measured approximately 0.007 acres. Depths of impacts reached 10.33 feet below surface within the trench, and a depth of 5.5 feet below surface. Disturbances within the APE included the existing sewer line, golf course construction, and various associated utilities. The APE was located entirely within areas impacted by the installation of the existing sewer line and was evident during the monitoring of the excavations. Evidence of previous disturbances was observed during the monitoring of the point repairs. No cultural deposits or features were documented during monitoring excavations of the SAWS Silverhorn Rehabilitation Project. Additionally, no evidence of unmarked burials or human remains were observed. Given that excavations occurred over a previously excavated areas and no cultural materials were identified, RKI recommends no further archaeological investigations for the current APE. However, should additional point repairs along the existing sewer line be required, it is recommended that additional monitoring be conducted. All field records generated by this project will be permanently curated at the Center for Archaeological Research at the University of Texas at San Antonio

    Plumage as a Habitat for Bacilli

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    Prominence of Slut Shaming Connected with Sexual Objectification: Boys Will Be Boys and Girls Will Be Sluts

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    The primary purpose of this research was to develop a psychometric for slut shaming that would serve as a reliable and valid measure. The secondary purpose was to look at the relation between slut shaming and sexual objectification as it pertains to gender and race. Participants (n = 200) were recruited using Amazon Mechanical Turk (MTurk) and asked to complete survey questions. Research analyses found the Slut Shaming Scale to be a reliable and valid measure without having to exclude any of the original items on the psychometric. Additional analyses showed that men reported victim blaming significantly more often than women, though there were not significant differences across race. Correlation analyses revealed a positive correlation between men’s and women’s slut shaming behaviors and their sexually objectifying experiences, a positive correlation between men’s and women’s slut shaming beliefs and experiences being the victim, a positive correlation between men’s and women’s slut shaming behaviors and their experiences being the victim, and a positive correlation between men’s and women’s victim blaming and experiences being the victim of slut shaming. Results also indicated that women experience sexual objectification more often than men. Limitations and future research directions are discussed
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