Výsledky vyhledávání - "Gary L. Hatch"

Hypoiodous acid, iodine, and iodide determination with leuco crystal violet and N-chlorosuccinimide-succinimide reagents

Autor: Gary L. Hatch

Publikováno v: Analytical Chemistry. 56:2238-2241

A two-step colorimetric method is described for determining the composition of aqueous iodine solutions containing mixtures of the zero and -1 or +1 oxidation state. An advantage of this method over the standard method for iodine is that for a mixtur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::702f47c793957807b6e89ffea57e99de
https://doi.org/10.1021/ac00276a057

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Determining residual chlorine: effect of temperature on the titrametric starch-iodine end point

Autor: Gary L. Hatch, Vue X. Yang

Publikováno v: Journal - American Water Works Association. 75:154-156

Several standard titrametric methods are available for determining residual chlorine.‘-3 These methods are based on the stoichiometric production of iodine by the reaction of residual chlorine with excess iodide ion. In the direct titrametric metho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ba75df5b67266fccd2776d6b9daf4d0
https://doi.org/10.1002/j.1551-8833.1983.tb05092.x

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WISC-R full scale mean IQS for both black and white children, aged 6 through 15 and having difficulty in school

Autor: Theron M. Covin, Gary L. Hatch

Publikováno v: Psychological reports. 41(3 pt. 2)

Differences in WISC-R Full Scale mean IQs by age for 931 lower-class English-speaking Southern children were reported. Black children and white children tended to have similar mean IQs at Age 6 ( t = —0.55). By Age 9 the differences in mean IQ beca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3463b2382df94e2f8702cbee7d141ad
https://pubmed.ncbi.nlm.nih.gov/601149

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WISC Full Scale IQ Mean Differences of Black Children and White Children Aged 6 through 15 and Having Problems in School

Autor: Theron M. Covin, Gary L. Hatch

Publikováno v: Psychological Reports. 40:281-282

Differences in Full Scale WISC IQ for 300 black and 300 white southern children from families of low income and aged 6 through 15 yr., who were referred for psychometric assessment, are reported, and three distinct trends observed. The difference bet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c8284c44b24eb0a4e4cb3c9a881c8ab
https://doi.org/10.2466/pr0.1977.40.1.281

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Comparability of WISC and Peabody IQs of Young Children from Three Heterogeneous Groups

Autor: Theron M. Covin, Gary L. Hatch

Publikováno v: Psychological Reports. 40:1345-1346

Peabody and WISC IQs of three groups of children from differing socioeconomic status levels and/or intellectual levels were compared. For the total sample of 67, correlations of .88, .88, .91 were obtained between the Peabody and WISC Verbal, Perform

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a911ff6ae3c3d208895e58e9203dd5bd
https://doi.org/10.2466/pr0.1977.40.3c.1345

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