39 research outputs found

    Exploring the Incidence and Predictability Problem of Dyscalculia in a School-Based, Rural Population in a Rural State

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    The term learning disability denotes the inability to learn in keeping with one\u27s potential when presented with the usual curriculum. Dyscalculia is learning disability manifested in the area of mathematics curriculum. Limited research exists in the area of dyscalculia in terms of both incidence and identification procedures. However, a fairly large number of school-aged children show deficits in this area. Despite the necessity for knowledge of mathematics, little emphasis is placed on the identification and remediation of mathematical learning disabilities. A prominent neurologist (Rosenberger, 1989) has hypothesized recently that as much as 10% of the population of school-aged children in the United States may be affected by this disorder, more even than are affected by dyslexia (Rubin, 1990). It is important, therefore, that the issue be studied further. In the study, students with a 1.5 standard deviation difference between their normalized Iowa Tests of Basic Skills (ITBS) (Hieronymus & Hoover, 1986) reading score and their normalized ITBS math score were defined as dyscalculic if the reading score was at least average and the math score was lower than the reading score or as dyslexic if the ITBS math score was at least average and the reading score was lower than the math score. With these definitions, it was found that dyscalculia did not comprise as much as 10% of the 104 students studied. Implications for laterality as a discriminant between dyslexia and dyscalculia could not be drawn and the generalizability of the clinic based results obtained by Rosenberger (1989) was questioned

    Wild Blueberries 1999 CSREES Progress Reports

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    The 1999 edition of the Wild Blueberries CSREES Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include: 1. Effects of QF Processing on Microbiological Quality of Maine Wild Blueberries 2. Separation of Maggot-Infested Blueberries in the IQF Processing Line 3. Determination of Pesticide Residue Levels in Fresh and Processed Wild Blueberries 4. Control Tactics for Blueberry Pest Insects 5. IPM Strategies 6. Biology and Ecology of Blueberry Pest Insects 7. Survey of Stem Blight and Leaf Spot Diseases in Lowbush Blueberry Fields 8. Phosphorus/Nitrogen Fertilizer Ratio 9. Effect of Fertilizer Timing on Lowbush Blueberry Growth and Productivity 10. Effect of Soil pH on Nutrient Uptake 11. Effect of Boron Application Methods on Boron Uptake in Lowbush Blueberries 12. Effect of Nutri-Phite P+K on growth and yield of lowbush blueberry 13. Effect of Crop-Set on growth and yield of lowbush blueberry 14. Crop year fertilization of lowbush blueberry 15. Alternative Methods of Grass Control 16. Cultural Weed Management Using pH 17. Investigation of Hexazinone Alternatives for Weed Control 18. Comparison of Sulfosate and Glyphosate for Weed Control 19. Evaluation of VC1447 for Weed Control in Wild blueberries 20. Blueberry/ Cranberry Extension Education Program in 1999 21. Effect of Rate, Formulation and Application Method on Efficacy and Phytotoxicity of Granular Hexazinone in Wild Blueberry Fields 22. 1999 Fungicide Evaluation Field Trial 23. 1999 Hexazinone Groundwater Survey Pollination 24. Sustainable Pollination of Wild Blueberr

    2002 Wild Blueberry Project Reports

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    The 2002 edition of the Wild Blueberry Project Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include: 1. Factors Affecting Microbial and Pesticide Residue Levels on Wild Blueberries 2. Effect of Blueberry Products on Oxidation in Meat Based Food 3. Determination of Pesticide Residue Levels in Freshly Harvested and Processed Wild Blueberries 4. Detection of Infested Wild Blueberries using Near-Infrared Spectroscopy 5. Investigation Of The Mechanism By Which Blueberry Fractions Maintain Arterial Integrity 6. Antioxidant Assessment in the Elderly 7. Water Use of Wild Blueberries and the Impact of Plant Water Stress on Yield 8. Control Tactics for Wild blueberry Pest Insects 9. IPM Strategies 10. Pest Biology 11. Wild Blueberry Pollination Research 12. Survey and Determination of Effective Control of Stem Blight and Leaf Spot Diseases in Wild Blueberry Fields 13. Effect of Foliar-applied Iron Chelate Concentration on Leaf Iron Concentration, Wild Blueberry Growth and Yield 14. Effect of Boron Application Methods on Boron Uptake in Wild Blueberries 15. Effect of Foliar N spray on Leaf N Concentration, Growth and Yield of Wild Blueberries 16. Effect of Foliar Spray (4-13-15) on Leaf Nutrient Concentration, Growth and Yield of Wild Blueberries 17. Effect of Foliar Copper Application on Growth and Yield of Wild Blueberries 18. Effect of Foliar Copper and/or Iron Application on Growth and Yield of Wild Blueberries 19. Effect of Soil pH on Nutrient Uptake 20. Assessment of Hexazinone Alternatives for Weed Control in Wild Blueberries and Weed Control 21. Evaluation of Fall Applications of Sulfonylurea Herbicides for Bunchberry Control in Wild Blueberries 22. Evaluation and Demonstration of Techniques for Filling in Bare Spots in Wild Blueberry Fields 23. Blueberry Extension Education Program Base 24. 2002 Pesticide Groundwater Survey 25. Cultural Weed Management using sulfur to lower the p

    2001 Wild Blueberry CSREES Project Reports

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    The 2001 edition of the Wild Blueberry CSREES Progress Reports was prepared for the Maine Wild Blueberry Commission and the University of Maine Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include: 1. Effect of Wild Blueberry Products on Oxidation in Meat Based Food Systems 2. Factors Affecting the Microbial and Pesticide Residues Levels on Wild Blueberries 3. Determination of Pesticide Residue Levels in Fresh and Processed Wild Blueberries 4. Separation of Maggot-Infested Wild Blueberries in the IQF Processing Line 5. Water Use of Wild Blueberries and the Impact of Plant Water Stress on Yields 6. Survey of Stem Blight and Leaf Spot Diseases in Wild Blueberry Fields 7. IPM Strategies 8. Control Tactics for Wild Blueberry Pest Insects, 2001 9. Biology and Ecology of Blueberry Pest Insects 10. Diurnal Bee Activity and Measurement of Honeybee Field Strength 11. Effect of Foliar-applied Iron (Fe) Chelate Concentration on Leaf Iron Concentration, Wild Blueberry Growth and Yield 12. Effect of Boron Application Methods on Boron Uptake in Wild Blueberries 13. Effect of Foliar Iron and Copper Application on Growth and Yield of Wild Blueberries 14. Effect of Fertilizer Timing on Wild Blueberry Growth and Productivity 15. Effect of Foliar Copper Application on Growth and Yield of Wild Blueberries 16. Effect of Prune-year Applications of Nutri-Phitetm P or Nutri-Phitetm P+K on Growth and Yield of Wild Blueberry (Vaccinium angustifolium Ait.) 17. Effect of Soil pH on Nutrient Uptake 18. Assessment of Azafenidin for Weed Control in Wild Blueberries 19. Assessment of Rimsulfuron for Weed Control in Wild Blueberries 20. Assessment of Pendimethalin for Weed Control in Wild Blueberries 21. Evaluation and Demonstration of Techniques for Filling in Bare Spots in Wild Blueberry Fields 22. Assessment of Sprout-less Weeder for Hardwood Control in Wild Blueberries 23. Wild Blueberry Extension Education Program in 2001 24. Evaluation of Fungicide Efficacy in Wild Blueberry Fields 25. 2001 Pesticide Groundwater Survey 26. Cultural Weed Management Using Sulfur to Lower the pH 27. Wild Blueberry Web Sit

    The Baryon Oscillation Spectroscopic Survey of SDSS-III

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    The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the combined efforts of all previous spectroscopic surveys of large scale structure. BOSS uses 1.5 million luminous galaxies as faint as i=19.9 over 10,000 square degrees to measure BAO to redshifts z<0.7. Observations of neutral hydrogen in the Lyman alpha forest in more than 150,000 quasar spectra (g<22) will constrain BAO over the redshift range 2.15<z<3.5. Early results from BOSS include the first detection of the large-scale three-dimensional clustering of the Lyman alpha forest and a strong detection from the Data Release 9 data set of the BAO in the clustering of massive galaxies at an effective redshift z = 0.57. We project that BOSS will yield measurements of the angular diameter distance D_A to an accuracy of 1.0% at redshifts z=0.3 and z=0.57 and measurements of H(z) to 1.8% and 1.7% at the same redshifts. Forecasts for Lyman alpha forest constraints predict a measurement of an overall dilation factor that scales the highly degenerate D_A(z) and H^{-1}(z) parameters to an accuracy of 1.9% at z~2.5 when the survey is complete. Here, we provide an overview of the selection of spectroscopic targets, planning of observations, and analysis of data and data quality of BOSS.Comment: 49 pages, 16 figures, accepted by A

    The Baryon Oscillation Spectroscopic Survey of SDSS-III

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    The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the combined efforts of all previous spectroscopic surveys of large-scale structure. BOSS uses 1.5 million luminous galaxies as faint as i = 19.9 over 10,000 deg(2) to measure BAO to redshifts z < 0.7. Observations of neutral hydrogen in the Ly alpha forest in more than 150,000 quasar spectra (g < 22) will constrain BAO over the redshift range 2.15 < z < 3.5. Early results from BOSS include the first detection of the large-scale three-dimensional clustering of the Ly alpha forest and a strong detection from the Data Release 9 data set of the BAO in the clustering of massive galaxies at an effective redshift z = 0.57. We project that BOSS will yield measurements of the angular diameter distance d(A) to an accuracy of 1.0% at redshifts z = 0.3 and z = 0.57 and measurements of H(z) to 1.8% and 1.7% at the same redshifts. Forecasts for Ly alpha forest constraints predict a measurement of an overall dilation factor that scales the highly degenerate D-A(z) and H-1(z) parameters to an accuracy of 1.9% at z similar to 2.5 when the survey is complete. Here, we provide an overview of the selection of spectroscopic targets, planning of observations, and analysis of data and data quality of BOSS

    The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

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    The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All of the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 deg2 of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include the measured abundances of 15 different elements for each star. In total, SDSS-III added 5200 deg2 of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 deg2; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra. \ua9 2015. The American Astronomical Society

    SARS-CoV-2 susceptibility and COVID-19 disease severity are associated with genetic variants affecting gene expression in a variety of tissues

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    Variability in SARS-CoV-2 susceptibility and COVID-19 disease severity between individuals is partly due to genetic factors. Here, we identify 4 genomic loci with suggestive associations for SARS-CoV-2 susceptibility and 19 for COVID-19 disease severity. Four of these 23 loci likely have an ethnicity-specific component. Genome-wide association study (GWAS) signals in 11 loci colocalize with expression quantitative trait loci (eQTLs) associated with the expression of 20 genes in 62 tissues/cell types (range: 1:43 tissues/gene), including lung, brain, heart, muscle, and skin as well as the digestive system and immune system. We perform genetic fine mapping to compute 99% credible SNP sets, which identify 10 GWAS loci that have eight or fewer SNPs in the credible set, including three loci with one single likely causal SNP. Our study suggests that the diverse symptoms and disease severity of COVID-19 observed between individuals is associated with variants across the genome, affecting gene expression levels in a wide variety of tissue types

    A first update on mapping the human genetic architecture of COVID-19

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