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Chagas Disease Risk in Texas  [PDF]
Sahotra Sarkar ,Stavana E. Strutz,David M. Frank,Chissa–Louise Rivaldi,Blake Sissel,Victor Sánchez–Cordero
PLOS Neglected Tropical Diseases , 2010, DOI: 10.1371/journal.pntd.0000836
Abstract: Background Chagas disease, caused by Trypanosoma cruzi, remains a serious public health concern in many areas of Latin America, including México. It is also endemic in Texas with an autochthonous canine cycle, abundant vectors (Triatoma species) in many counties, and established domestic and peridomestic cycles which make competent reservoirs available throughout the state. Yet, Chagas disease is not reportable in Texas, blood donor screening is not mandatory, and the serological profiles of human and canine populations remain unknown. The purpose of this analysis was to provide a formal risk assessment, including risk maps, which recommends the removal of these lacunae. Methods and Findings The spatial relative risk of the establishment of autochthonous Chagas disease cycles in Texas was assessed using a five–stage analysis. 1. Ecological risk for Chagas disease was established at a fine spatial resolution using a maximum entropy algorithm that takes as input occurrence points of vectors and environmental layers. The analysis was restricted to triatomine vector species for which new data were generated through field collection and through collation of post–1960 museum records in both México and the United States with sufficiently low georeferenced error to be admissible given the spatial resolution of the analysis (1 arc–minute). The new data extended the distribution of vector species to 10 new Texas counties. The models predicted that Triatoma gerstaeckeri has a large region of contiguous suitable habitat in the southern United States and México, T. lecticularia has a diffuse suitable habitat distribution along both coasts of the same region, and T. sanguisuga has a disjoint suitable habitat distribution along the coasts of the United States. The ecological risk is highest in south Texas. 2. Incidence–based relative risk was computed at the county level using the Bayesian Besag–York–Mollié model and post–1960 T. cruzi incidence data. This risk is concentrated in south Texas. 3. The ecological and incidence–based risks were analyzed together in a multi–criteria dominance analysis of all counties and those counties in which there were as yet no reports of parasite incidence. Both analyses picked out counties in south Texas as those at highest risk. 4. As an alternative to the multi–criteria analysis, the ecological and incidence–based risks were compounded in a multiplicative composite risk model. Counties in south Texas emerged as those with the highest risk. 5. Risk as the relative expected exposure rate was computed using a multiplicative model for
Qualitative and quantitative characteristics of roach (Rutilus rutilus caspicus Jakowlew, 1870) from anglers' catches in the Volga river delta in 2011  [PDF]
Kostyurin Nickolay Nickolaevich,Barabanov Vitaliy Victorovich,Aseinov Dmitriy Dmitrievich
Vestnik of Astrakhan State Technical University. Series: Fishing Industry , 2012,
Abstract: Qualitative and quantitative characteristics of roach from catches of anglers in the Volga River delta during spring and autumn are evaluated; the volume of total harvest of recreational fishery is deter-mined. The presented materials have indicated quite a significant anthropogenic impact of recreational fishery on roach stock while the roach population is in depression. A total of 835.0 tons of roach was taken by recreational fishery in 2011, that is 35.6 % of the total allowable catch.
Ecological features of ligule invasion of bream and roach in the Volga-Caspian region  [PDF]
Chepurnaya Alevtina Grigorievna,Konkova Anna Vladimirovna
Vestnik of Astrakhan State Technical University. Series: Fishing Industry , 2012,
Abstract: The results of long-term studies (2007–2011) of ecological features of ligule invasion of young roach and bream in the Volga-Caspian region are generalized. The species belonging of ligules and their hosts and the level of fish contamination are defined; the postmortem changes in the body of diseased fish are identified.
Bulletin of the Texas Archeological Society, Volume 71 (2000), Austin, Paper.
Larry D. Banks
Bulletin of the History of Archaeology , 2000, DOI: 10.5334/bha.10203
Abstract: This annual bulletin of the Texas Archeological Society is a unique contribution specifically focused upon the history of Texas archaeology in a format that no others have done previously. The volume contains 150 pages, the majority of which consists of interviews (146 pages) conducted by the first State Archaeologist of Texas, Curtis Tunnell. In 1968 Tunnell conceived of the idea of obtaining personal interviews from individuals whom he considered his heroes for their pioneering efforts in Texas archeology. This volume entails the first publication of such information, but more will certainly follow. The remaining four pages comprise two different reviews of other publications important in their own right to those interested in Southern Plains archeology of Texas. These two reviews by Timothy K Pertulla and David T. Hughes, respectively, are of The Coronado Expedition to Tierra Nueva: The 1540·1542 Route Across the Southwest by Richard Flint and Shirley Cushing flint, and GaffCreek: Artifact Collection Strategy and Occupation Prehistory on the Southern High Plains, Texas County. Oklahoma. The section by Tunnell titled "In Their Own Words: Stories from Some Pioneer Texas Archeologists" contains numerous previously unpublished photographs of people, sites and artifacts referred to the texts.
Nikica ?prem,Marina Piria,Tomislav Treer
Ribarstvo : Croatian Journal of Fisheries , 2001,
Abstract: Three populations of roach from northwestern Croatia were checked for 24 morphometric and 7 meristic parameters, as well as for length-mass relationship. Some meristic characters expressed the values beyond those mentioned in the key for freshwater fish species determination in southeastern Europe. Length-mass relationship and condition factor (CF) were the highest in the river Kupa and somewhat lower in the eutrophic stagnant water (3 rd Maksimir lake). On the other hand, these parameters were significantly lower at roach from oligotrophic stagnant water (Mrtvica). This indicates that roach is similarly well adapted to the stagnant as well as running waters and that its condition and morphometry is primarily influenced by the quantity of the food offered.
The Myth of the Texas Miracle in Education  [cached]
Walt Haney
Education Policy Analysis Archives , 2000,
Abstract: I summarize the recent history of education reform and statewide testing in Texas, which led to introduction of the Texas Assessment of Academic Skills (TAAS) in 1990-91. A variety of evidence in the late 1990s led a number of observers to conclude that the state of Texas had made near miraculous progress in reducing dropouts and increasing achievement. The passing scores on TAAS tests were arbitrary and discriminatory. Analyses comparing TAAS reading, writing and math scores with one another and with relevant high school grades raise doubts about the reliability and validity of TAAS scores. I discuss problems of missing students and other mirages in Texas enrollment statistics that profoundly affect both reported dropout statistics and test scores. Only 50% of minority students in Texas have been progressing from grade 9 to high school graduation since the initiation of the TAAS testing program. Since about 1982, the rates at which Black and Hispanic students are required to repeat grade 9 have climbed steadily, such that by the late 1990s, nearly 30% of Black and Hispanic students were "failing" grade 9. Cumulative rates of grade retention in Texas are almost twice as high for Black and Hispanic students as for White students. Some portion of the gains in grade 10 TAAS pass rates are illusory. The numbers of students taking the grade 10 tests who were classified as "in special education" and hence not counted in schools' accountability ratings nearly doubled between 1994 and 1998. A substantial portion of the apparent increases in TAAS pass rates in the 1990s are due to such exclusions. In the opinion of educators in Texas, schools are devoting a huge amount of time and energy preparing students specifically for TAAS, and emphasis on TAAS is hurting more than helping teaching and learning in Texas schools, particularly with at-risk students, and TAAS contributes to retention in grade and dropping out. Five different sources of evidence about rates of high school completion in Texas are compared and contrasted. The review of GED statistics indicated that there was a sharp upturn in numbers of young people taking the GED tests in Texas in the mid-1990s to avoid TAAS. A convergence of evidence indicates that during the 1990s, slightly less than 70% of students in Texas actually graduated from high school. Between 1994 and 1997, TAAS results showed a 20% increase in the percentage of students passing all three exit level TAAS tests (reading, writing and math), but TASP (a college readiness test) results showed a sharp decrease (from 65.2% to 43.3%) in the
A new genus of wolf spiders from Mexico and Southern United States, with description of a new species from Texas (Araneae: Lycosidae)
Dondale, Charles D;Jiménez, Maria-Luisa;Nieto, Gisela;
Revista mexicana de biodiversidad , 2005,
Abstract: pardosa parallela banks, 1898 is made the type species of the new genus camptocosa. camptocosa parallela new combination is re-described from fresh material, and a new species c. texana, is described from texas.
Sustainability Atlas of Texas Ecoregions  [PDF]
Faye Anderson, Najla N. J. Al-Thani
Journal of Human Resource and Sustainability Studies (JHRSS) , 2015, DOI: 10.4236/jhrss.2015.34026
Abstract: Since the introduction of the triple bottom line sustainability assessment accounting, a variety of approaches have been developed to quantify sustainability using the three axes of social, economic and environmental sustainability. The aim of this atlas is to assess the sustainability of Texas natural ecoregions: the Piney Woods, the Gulf Prairies and marshes, the Post Oak Savanah, the Blackland Prairies, the Cross Timbers, the South Texas Plains, the Edwards Plateau, the Rolling Plains, the High Plains and the Trans-Pecos, by identifying a set of indicators. These are unemployment, children in poverty, severity of housing problems, daily PM2.5 concentrations, population affected by drinking water violation, total water use, organic production, non-obesity and attainment of post-secondary education. Despite the limitations of inherent inaccuracies and temporal limitation, the assessment points to issues that negatively affect the environmental sustainability of Texas ecoregions. Continual assessment is recommended to optimize the atlas.
Biological Aspects of Rutilus rutilus (Roach) in Sapanca Lake (Turkey)
Hacer Okgerman,Muammer Oral,Sibel Yigit
Journal of Animal and Veterinary Advances , 2012,
Abstract: The age and the growth parameters of the roach (Rutilus rutilus L., 1758) caught in Sapanca Lake were investigated monthly between October 2000 and September 2001. The age values of the 398 roach caught were between 1 and 9 and the majority of the fish consisted of individuals of the 5 and 6 age group. The difference between the average lengths with respect to sex was significant in 1, 2, 5 and 8 age groups (p<0.05). The von-Bertalanffy equation was determined with Lt = 31.87 (1-e0.195(t+0.034)); Wt = 380.91 (1-e0.195(t+0.034))3 for males and Lt = 47.19(1-e0.109 (t+0.056); Wt = 1256.93 (1-e0.109(t+0.056))3 for females. The relationships between length and weight were found highly significant (r = 0.99). The differences of mean length, weight and condition factors between females and males in the same length groups were compared. The length-weight correlation was found to be W = 0.014 L2.933 for male and W = 0.013 L2.972 for female. The mean values of condition factors (K) of females and males were determined as 1.241±0.02 and 1.221±0.03, respectively.
Texas Gains on NAEP: Points of Light?
Gregory Camilli
Education Policy Analysis Archives , 2000,
Abstract: The 1992-1996 gain in mathematics scores on NAEP from 4th to 8th grades in Texas is placed in perspective. The "miracle" in Texas looks much like the median elsewhere. Of 35 states and two districts (Guam and D.C.), the 52-point gain of Texas was good enough to earn Texas a rank of 17th or about the 46th percentile. Taking into consideration the wealth of states, Texas stands in the middle of the pack no worse than most other states in delivering educational services to students.
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