580 research outputs found
An Archaeological Survey of Twin Buttes Reservoir, Tom Green County, Texas, Volume III
From December of 1998 through November of 1999, the Center for Archaeological Research (CAR), at The University of Texas at San Antonio (UTSA) conducted a Class III archaeology survey of 10,195 acres (4125 ha) within Twin Buttes Reservoir, a flood control and irrigation facility near the city of San Angelo in west-central Tom Green County, Texas. The 100 percent pedestrian survey, conducted for the Department of the Interior, Bureau of Reclamation (BOR), was primarily a section 110, of the National Historic Preservation Act (NHPA), effort. The survey was conducted in conjunction with repair of existing seepage at Twin Buttes Dam. The repair, conducted under the Safety of Dams program, involved the construction of several borrow pits. Since the Safety of Dams repair required BOR to inventory several areas of the reservoir lands under Section 106 of the NHPA, it was decided to expand the section 106 work, and do the entire Section 110 survey of the reservoir.
CAR recorded 178 new archaeological sites, and revisited 21 previously recorded sites, within the reservoir. On these 199 sites, 19 historic components were identified, reflecting primarily farming and ranching activities. The prehistoric sites reflect occupation from the early Paleoindian period through the Late Prehistoric period. While recommendations regarding the eligibility of sites to the National Register of Historic Places (NRHP) were not required by the survey, based on the survey results CAR recommends that 13 of the 19 historic components have moderate or high research potential. Within the prehistoric data set, 48 sites have high research potential, 33 have moderate research potential, and 111 sites have limited research value
Archaeological Testing to Determine the National Register Eligibility Status of 18 Prehistoric Sites on Camp Bowie, Brown County, Texas Volume 2
Between the fall of 1999 and the summer of 2001, archaeologists from the Center for Archaeological Research (CAR) at The University of Texas at San Antonio conducted National Register Eligibility testing on 18 prehistoric sites within Camp Bowie in Brown County, Texas. The work was conducted for the Texas Army National Guard. The sites were recommended for testing during an inventory survey of Camp Bowie conducted between 1993 and 1998 (Wormser and Sullo-Prewitt 2001). Sixteen of the 18 sites tested contained burned rock middens. It was on the basis of that feature type that these sites were recommended for testing. Two sites (41BR261 and 41BR276) lacked burned rock middens, but Wormser and Sullo-Prewitt (2001) recommended these sites for testing based on the presence of diagnostic projectile points and the potential for buried features. As burned rock middens were a major element of the recommendations, much of this report focused on understanding those feature types. In all, 19 middens were tested.
On the basis of these testing efforts, CAR recommends that 12 sites (41BR65, 41BR87, 41BR228, 41BR246, 41BR250, 41BR253, 41BR420, 41BR433, 41BR473, 41BR478, 41BR492, and 41BR493) should be considered eligible for inclusion to the National Register of Historic Places and warrant designations as State Archeological Landmarks. Either avoidance of these locations, or some form of mitigation on portions of these sites, will be necessary. Our testing suggests that the remaining sites either lack clear evidence of significant data (41BR261 and 41BR276) or have data of questionable integrity (41BR415, 41BR441, 41BR474, and 41BR480). In these cases, CAR recommends that these sites are not eligible for inclusion to the National Register of Historic Places and they do not warrant designation as State Archeological Landmarks
Archaeological Testing to Determine the National Register Eligibility Status of 18 Prehistoric Sites on Camp Bowie, Brown County, Texas Volume 1
Between the fall of 1999 and the summer of 2001, archaeologists from the Center for Archaeological Research (CAR) at The University of Texas at San Antonio conducted National Register Eligibility testing on 18 prehistoric sites within Camp Bowie in Brown County, Texas. The work was conducted for the Texas Army National Guard. The sites were recommended for testing during an inventory survey of Camp Bowie conducted between 1993 and 1998 (Wormser and Sullo-Prewitt 2001). Sixteen of the 18 sites tested contained burned rock middens. It was on the basis of that feature type that these sites were recommended for testing. Two sites (41BR261 and 41BR276) lacked burned rock middens, but Wormser and Sullo-Prewitt (2001) recommended these sites for testing based on the presence of diagnostic projectile points and the potential for buried features. As burned rock middens were a major element of the recommendations, much of this report focused on understanding those feature types. In all, 19 middens were tested.
On the basis of these testing efforts, CAR recommends that 12 sites (41BR65, 41BR87, 41BR228, 41BR246, 41BR250, 41BR253, 41BR420, 41BR433, 41BR473, 41BR478, 41BR492, and 41BR493) should be considered eligible for inclusion to the National Register of Historic Places and warrant designations as State Archeological Landmarks. Either avoidance of these locations, or some form of mitigation on portions of these sites, will be necessary. Our testing suggests that the remaining sites either lack clear evidence of significant data (41BR261 and 41BR276) or have data of questionable integrity (41BR415, 41BR441, 41BR474, and 41BR480). In these cases, CAR recommends that these sites are not eligible for inclusion to the National Register of Historic Places and they do not warrant designation as State Archeological Landmarks
The effectiveness of two grammar treatment procedures for children with SLI: A randomized clinical trial
Purpose: This study compared the effectiveness of two grammar treatment procedures for children with specific language impairment. Method: A double-blind superiority trial with cluster randomization was used to compare a cueing procedure, designed to elicit a correct production following an initial error, to a recasting procedure, which required no further production. Thirty-one 5-year-old children with specific language impairment participated in 8 small group, classroom-based treatment sessions. Fourteen children received the cueing approach and 17 received the recasting approach. Results: The cueing group made significantly more progress over the 8-week treatment period than the recasting group. There was a medium–large treatment effect in the cueing group and a negligible effect size in the recasting group. The groups did not differ in maintenance of treatment effects 8 weeks after treatment. In single-subject analyses, 50% of children in the cueing group and 12% in the recasting group showed a significant treatment effect. Half of these children maintained the treatment effect 8 weeks later. Conclusion: Treatment that used a structured cueing hierarchy designed to elicit a correct production following a child’s error resulted in significantly greater improvement in expressive grammar than treatment that provided a recast following an error
124-Color Super-resolution Imaging by Engineering DNA-PAINT Blinking Kinetics
Optical super-resolution techniques reach unprecedented spatial resolution down to a few nanometers. However, efficient multiplexing strategies for the simultaneous detection of hundreds of molecular species are still elusive. Here, we introduce an entirely new approach to multiplexed super-resolution microscopy by designing the blinking behavior of targets with engineered binding frequency and duration in DNA-PAINT. We assay this kinetic barcoding approach in silico and in vitro using DNA origami structures, show the applicability for multiplexed RNA and protein detection in cells, and finally experimentally demonstrate 124-plex super-resolution imaging within minutes.We thank Martin Spitaler and the imaging facility of the MPI of Biochemistry for confocal imaging support
Rigidity, Secondary Structure, and the Universality of the Boson Peak in Proteins
AbstractComplementary neutron- and light-scattering results on nine proteins and amino acids reveal the role of rigidity and secondary structure in determining the time- and lengthscales of low-frequency collective vibrational dynamics in proteins. These dynamics manifest in a spectral feature, known as the boson peak (BP), which is common to all disordered materials. We demonstrate that BP position scales systematically with structural motifs, reflecting local rigidity: disordered proteins appear softer than α-helical proteins; which are softer than β-sheet proteins. Our analysis also reveals a universal spectral shape of the BP in proteins and amino acid mixtures; superimposable on the shape observed in typical glasses. Uniformity in the underlying physical mechanism, independent of the specific chemical composition, connects the BP vibrations to nanometer-scale heterogeneities, providing an experimental benchmark for coarse-grained simulations, structure/rigidity relationships, and engineering of proteins for novel applications
CSIP - a Novel Photon-Counting Detector Applicable for the SPICA Far-Infrared Instrument
We describe a novel GaAs/AlGaAs double-quantum-well device for the infrared
photon detection, called Charge-Sensitive Infrared Phototransistor (CSIP). The
principle of CSIP detector is the photo-excitation of an intersubband
transition in a QW as an charge integrating gate and the signal amplification
by another QW as a channel with very high gain, which provides us with
extremely high responsivity (10^4 -- 10^6 A/W). It has been demonstrated that
the CSIP designed for the mid-infrared wavelength (14.7 um) has an excellent
sensitivity; the noise equivalent power (NEP) of 7x10^-19 W/rHz with the
quantum efficiency of ~2%. Advantages of the CSIP against the other highly
sensitive detectors are, huge dynamic range of >10^6, low output impedance of
10^3 -- 10^4 Ohms, and relatively high operation temperature (>2K). We discuss
possible applications of the CSIP to FIR photon detection covering 35 -- 60 um
waveband, which is a gap uncovered with presently available photoconductors.Comment: To appear in Proc. Workshop "The Space Infrared Telescope for
Cosmology & Astrophysics: Revealing the Origins of Planets and Galaxies".
Eds. A.M. Heras, B. Swinyard, K. Isaak, and J.R. Goicoeche
An Archaeological Survey of Twin Buttes Reservoir, Tom Green County, Texas, Volume II
From December of 1998 through November of 1999, the Center for Archaeological Research (CAR), at The University of Texas at San Antonio (UTSA) conducted a Class III archaeology survey of 10,195 acres (4125 ha) within Twin Buttes Reservoir, a flood control and irrigation facility near the city of San Angelo in west-central Tom Green County, Texas. The 100 percent pedestrian survey, conducted for the Department of the Interior, Bureau of Reclamation (BOR), was primarily a section 110, of the National Historic Preservation Act (NHPA), effort. The survey was conducted in conjunction with repair of existing seepage at Twin Buttes Dam. The repair, conducted under the Safety of Dams program, involved the construction of several borrow pits. Since the Safety of Dams repair required BOR to inventory several areas of the reservoir lands under Section 106 of the NHPA, it was decided to expand the section 106 work, and do the entire Section 110 survey of the reservoir.
CAR recorded 178 new archaeological sites, and revisited 21 previously recorded sites, within the reservoir. On these 199 sites, 19 historic components were identified, reflecting primarily farming and ranching activities. The prehistoric sites reflect occupation from the early Paleoindian period through the Late Prehistoric period. While recommendations regarding the eligibility of sites to the National Register of Historic Places (NRHP) were not required by the survey, based on the survey results CAR recommends that 13 of the 19 historic components have moderate or high research potential. Within the prehistoric data set, 48 sites have high research potential, 33 have moderate research potential, and 111 sites have limited research value
An Archaeological Survey of Twin Buttes Reservoir, Tom Green County, Texas
From December of 1998 through November of 1999, the Center for Archaeological Research (CAR), at The University of Texas at San Antonio (UTSA) conducted a Class III archaeology survey of 10,195 acres (4125 ha) within Twin Buttes Reservoir, a flood control and irrigation facility near the city of San Angelo in west-central Tom Green County, Texas. The 100 percent pedestrian survey, conducted for the Department of the Interior, Bureau of Reclamation (BOR), was primarily a section 110, of the National Historic Preservation Act (NHPA), effort. The survey was conducted in conjunction with repair of existing seepage at Twin Buttes Dam. The repair, conducted under the Safety of Dams program, involved the construction of several borrow pits. Since the Safety of Dams repair required BOR to inventory several areas of the reservoir lands under Section 106 of the NHPA, it was decided to expand the section 106 work, and do the entire Section 110 survey of the reservoir.
CAR recorded 178 new archaeological sites, and revisited 21 previously recorded sites, within the reservoir. On these 199 sites, 19 historic components were identified, reflecting primarily farming and ranching activities. The prehistoric sites reflect occupation from the early Paleoindian period through the Late Prehistoric period. While recommendations regarding the eligibility of sites to the National Register of Historic Places (NRHP) were not required by the survey, based on the survey results CAR recommends that 13 of the 19 historic components have moderate or high research potential. Within the prehistoric data set, 48 sites have high research potential, 33 have moderate research potential, and 111 sites have limited research value
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