4,422 research outputs found

    A Cultural Resources Survey For The Marshall Ivy Road Bridge Replacement Project In Angelina County, Texas

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    This report documents the results of a Phase I Intensive Survey by Brazos Valley Research Associates (BVRA) prior to the replacement of a bridge over Shawnee Creek in Angelina County, Texas. This project was conducted under Antiquities Permit 8003. The Federal Emergency Management Agency (FEMA) has considered the loss of the bridge to be a natural disaster worthy of partial funding and this agency is responsible for the proper management of this project. The number assigned to this project by FEMA is DR-4266, PW-00164 and it is referred to as the Angelina County Marshall Ivy Bridge project. The investigation was conducted on May 2, 2017 by William E. Moore with assistance from Terry Pitts, Councilman for Precinct 3 in Angelina County and two county employees. The size of the Area of Potential Effect (APE) is estimated to 0.03 acre. No cultural resource sites were found in the areas examined. It is, therefore, recommended that construction be allowed to proceed as planned. The records pertaining to this project are curated at Stephen F. Austin in Nacogdoches, Texas

    An Archaeological Survey for the City of Winters Water Supply Improvements Project in Runnels County, Texas

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    An archaeological survey of the site of the proposed water supply improvement project in north-central Runnels County, Texas was performed by Brazos Valley Research Associates (BVRA) on August 14 and 15, 2015 under Antiquities Permit 7381 issued by the Texas Historical Commission (THC). This survey examined five areas where water wells are proposed, one proposed ground storage tank site, and segments of proposed transmission lines that connect with the above mentioned improvements. These lines cross Antelope Creek in two places. The total number of acres is 17.71. The field methods included a 100% pedestrian survey and shovel testing. No evidence of a prehistoric or historic site was observed. Antelope Creek is the only major water source in the area surveyed and it is an intermittent stream that probably only contained water following rains and would not have been a likely setting for a prehistoric camp. Most of the soils are heavy clay at the surface and that negates the possibilty of buried deposits. It is recommended that the City of Winters be allowed to proceed with construction as planned. Copies of the report will be housed at the THC, Texas Archeological Research Laboratory (TARL), Texas State Library, City of Winters, Enprotec/Hibbs & Todd, regional libraries, and BVRA

    An Archaeological Survey for the Proposed City of Granbury Water Treatment Plant Project in Hood County, Texas

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    An archaeological survey of a one-acre tract in Hood County, Texas was conducted by Brazos Valley Research Associates (BVRA) on June 5, 2015. Prehistoric site 41HD11 had been recorded in the Area of Potential Effect (APE), and the purpose of this project was to confirm its presence and identify site boundaries and site significance if possible. William E. Moore was the Principal Investigator and Jesse Todd was the Project Archaeologist who performed the survey. The Texas Historical Commission (THC) issued Antiquities Permit number 7273 to this project. The area was extensively shovel tested and no cultural materials were found. Previous reports by other archaeologists indicated that the site had been disturbed so much that further work was not recommended. All records will be permanently housed at the Texas Archeological Research Laboratory (TARL) on the campus of The University of Texas at Austin. Copies of the final report will be submitted to the THC, TARL, Texas Parks and Wildlife Department (TPWD), the city of Granbury (aka City), Enprotec/Hibbs & Todd, and selected libraries across the state

    Cultural Resources Survey for the City of Hudson Wastewater Treatment Plant Expansion in Angelina County, Texas

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    An archaeological survey for the City of Hudson, Texas was performed by Brazos Valley Research Associates (BVRA) on November 20 and 21, 2015 under Antiquities Permit 7471 issued by the Texas Historical Commission (THC). This survey examined the site of the proposed wastewater treatment plant, approximately 6.25 acres. The field methods included a 100% pedestrian survey and shovel testing. No evidence of a prehistoric or historic site was observed. It is recommended that the City of Hudson be allowed to proceed with construction as planned. Copies of the report will be housed at the THC, Texas Archeological Research Laboratory (TARL), Texas State Library, City of Hudson, CME Testing and Engineering, Inc, regional libraries, and BVRA

    Right whale, Eubalaena glacialis, sightings in Cape Cod waters

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    Sightings of right whales, Eubalaena glacialis, in Massachusetts waters have been recorded by workers at Woods Hole Oceanographic In stitution since 1955. These observations do not represent a census, because emphasis was placed on studying the whales' underwater sounds and other activities. The number of yearly sightings varied from 2 to 165. Observations were made from aircraft, boats, and occasionally from shore.Prepared for the Office of Naval Research under Contract N00014-79-C-0071; NR 083-004

    Resin impregnation process for producing a resin-fiber composite

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    Process for vacuum impregnation of a dry fiber reinforcement with a curable resin to produce a resin-fiber composite, by drawing a vacuum to permit flow of curable liquid resin into and through a fiber reinforcement to impregnate same and curing the resin-impregnated fiber reinforcement at a sufficient temperature and pressure to effect final curing. Both vacuum and positive pressure, e.g. autoclave pressure, are applied to the dry fiber reinforcement prior to application of heat and prior to any resin flow to compact the dry fiber reinforcement, and produce a resin-fiber composite of reduced weight, thickness and resin content, and improved mechanical properties. Preferably both a vacuum and positive pressure, e.g. autoclave pressure, are also applied during final curing

    Coexistence in unisexual-bisexual species complexes of Poeciliopsis (Pisces: Poeciliidae)

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    All-female forms of Poeciliopsis rely on males of closely related bisexual species for sperm. The natural habitat of Poeciliopsis in Sonora, Mexico, consists of a variety of small ponds connected by intermittent watercourses. Optimal areas, containing mixed female aggregates, are defended by territorial males. Social structure in natural populations very closely resembles that of laboratory experiments, wherein subordinant males show reduced mate discrimination and inseminate unisexuals. An equation relating male density to unisexual inseminations is used in a computer simulation model of a population. A stable equilibrium is inherent in unisexual-bisexual species complexes but the level of equilibrium is affected by the environment. Coexistence does not require niche separation. The simulations predict the percentage of unisexuals pregnant in natural populations and explain their distribution pattern. The strength of the mechanism is demonstrated by a natural population in which the percentage of unisexuals pregnant responded strongly to a modest change in unisexual-bisexual composition

    Visual suppression of the vestibulo-ocular reflex during space flight

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    Visual suppression of the vestibulo-ocular reflex was studied in 16 subjects on 4 Space Shuttle missions. Eye movements were recorded by electro-oculography while subjects fixated a head mounted target during active sinusoidal head oscillation at 0.3 Hz. Adequacy of suppression was evaluated by the number of nystagmus beats, the mean amplitude of each beat, and the cumulative amplitude of nystagmus during two head oscillation cycles. Vestibulo-ocular reflex suppression was unaffected by space flight. Subjects with space motion sickness during flight had significantly more nystagmus beats than unaffected individuals. These susceptible subjects also tended to have more nystagmus beats before flight
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