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CHC Theory

Shivraj, Anup Thomas, B Siddlingeshwar, Sharanabasappa B Patil
The UV/Vis absorption and fluorescence characteristics of 3-cyano-7-hydroxycoumarin [CHC] and 7-amino-4-methyl-3-coumarinylacetic acid [AMCA-H] were studied at room temperature in several neat solvents and binary solvent mixtures of 1,4-dioxane/acetonitrile. The effects of solvent on the spectral properties are analyzed using single and multi-parameter solvent polarity scales. Both general solute/solvent interactions and hydrogen bond interactions are operative in these systems. The solvation of CHC and AMCA-H dyes in 1,4-dioxane/acetonitrile solvent mixtures has been studied...
June 5, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
Gary L Canivez, Marley W Watkins, Rebecca Good, Kate James, Trevor James
BACKGROUND: Irish educational psychologists frequently use the Wechsler Intelligence Scale for Children - Fourth UK Edition (WISC-IV(UK) ; Wechsler, 2004, Wechsler Intelligence Scale for Children-Fourth UK Edition, London, UK, Harcourt Assessment) in clinical assessments of children with learning difficulties. Unfortunately, reliability and validity studies of the WISC-IV(UK) standardization sample have not yet been reported. Watkins et al. (2013, International Journal of School and Educational Psychology, 1, 102) found support for a bifactor structure with a large sample (N = 794) of Irish children who were administered the 10 WISC-IV(UK) core subtests in clinical assessments of learning difficulties and dominance of general intelligence...
April 3, 2017: British Journal of Educational Psychology
Nancy VanDevanter, Pritika Kumar, Nam Nguyen, Linh Nguyen, Trang Nguyen, Frances Stillman, Bryan Weiner, Donna Shelley
BACKGROUND: Services to treat tobacco dependence are not readily available to smokers in low-middle income countries (LMICs) where smoking prevalence remains high. We are conducting a cluster randomized controlled trial comparing the effectiveness of two strategies for implementing tobacco use treatment guidelines in 26 community health centers (CHCs) in Viet Nam. Guided by the Consolidated Framework for Implementation Research (CFIR), prior to implementing the trial, we conducted formative research to (1) identify factors that may influence guideline implementation and (2) inform further modifications to the intervention that may be necessary to translate a model of care delivery from a high-income country (HIC) to the local context of a LMIC...
February 28, 2017: Implementation Science: IS
J Rapkin, K Jensen, C M House, S K Sakaluk, J K Sakaluk, J Hunt
The condition dependence of male sexual traits plays a central role in sexual selection theory. Relatively little, however, is known about the condition dependence of chemical signals used in mate choice and their subsequent effects on male mating success. Furthermore, few studies have isolated the specific nutrients responsible for condition-dependent variation in male sexual traits. Here, we used nutritional geometry to determine the effect of protein (P) and carbohydrate (C) intake on male cuticular hydrocarbon (CHC) expression and mating success in male decorated crickets (Gryllodes sigillatus)...
December 28, 2016: Journal of Evolutionary Biology
May Sudhinaraset, Emily Treleaven, Jason Melo, Kanksha Singh, Nadia Diamond-Smith
BACKGROUND: Mistreatment of women in healthcare settings during childbirth has been gaining attention globally. Mistreatment during childbirth directly and indirectly affects health outcomes, patient satisfaction, and the likelihood of delivering in a facility currently or in the future. It is important that we study patients' reports of mistreatment and abuse to develop a deeper understanding of how it is perpetrated, its consequences, and to identify potential points of intervention...
October 28, 2016: BMC Pregnancy and Childbirth
Frank Gerhards, Nicole Griebel, Jan Runsink, Gerhard Raabe, Hans-Joachim Gais
X-ray crystal structure analysis of the lithiated allylic α-sulfonyl carbanions [CH2 CHC(Me)SO2 Ph]Li⋅diglyme, [cC6 H8 SO2 tBu]Li⋅PMDETA and [cC7 H10 SO2 tBu]Li⋅PMDETA showed dimeric and monomeric CIPs, having nearly planar anionic C atoms, only OLi bonds, almost planar allylic units with strong CC bond length alternation and the s-trans conformation around C1C2. They adopt a C1S conformation, which is similar to the one generally found for alkyl and aryl substituted α-sulfonyl carbanions...
December 1, 2015: Chemistry: a European Journal
Loes van Aken, Paul T van der Heijden, William M van der Veld, Laureen Hermans, Roy P C Kessels, Jos I M Egger
The Cattell-Horn-Carroll (CHC) theory of cognitive abilities has been guiding in the revision of the Wechsler Adult Intelligence Scale-Fourth edition (WAIS-IV). Especially the measurement of fluid reasoning (Gf) is improved. A total of five CHC abilities are included in the WAIS-IV subtests. Using confirmatory factor analysis, a five-factor model based on these CHC abilities is evaluated and compared with the four index scores in the Dutch-language version of the WAIS-IV. Both models demonstrate moderate fit, preference is given to the five-factor CHC model both on statistical and theoretical grounds...
June 2017: Assessment
Rick Thompson, Ba L Tran, Soumya Ghosh, Chun-Hsing Chen, Maren Pink, Xinfeng Gao, Patrick J Carroll, Mu-Hyun Baik, Daniel J Mindiola
In this study we enumerate the reactivity for two molecular vanadium nitrido complexes of [(nacnac)V≡N(X)] formulation [nacnac = (Ar)NC(Me)CHC(Me)(Ar)(-), Ar = 2,6-(CHMe2)2C6H3); X(-) = OAr (1) and N(4-Me-C6H4)2 (Ntolyl2) (2)]. Density functional theory calculations and reactivity studies indicate the nitride motif to have nucleophilic character, but where the nitrogen atom can serve as a conduit for electron transfer, thus allowing the reduction of the vanadium(V) metal ion with concurrent oxidation of the incoming substrate...
March 16, 2015: Inorganic Chemistry
Marcia Gardner
OBJECTIVE: To describe maternal caregiving and related strategies used by first-time mothers of young infants with complex health conditions (CHC) in the first 6 months after discharge. DESIGN: Grounded theory. SETTING: Data were collected in participants' homes in the Northeast United States. PARTICIPANTS: Eight first-time mothers of infants age 6 months or younger with CHC. METHODS: Purposive and theoretical sampling were used...
November 2014: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
Hong-Fang Ji, Yan Sun, Liang Shen
OBJECTIVE: The antioxidant vitamin E has been extensively employed to treat chronic liver diseases. The aim of this study was to assess the effect of vitamin E supplementation in lowering alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in patients with nonalcoholic fatty liver disease (NAFLD), nonalcoholic steatohepatitis (NASH), and chronic hepatitis C (CHC). METHODS: We searched all publications in PubMed, Web of Science, and Cochrane Library databases up to June 2013...
September 2014: Nutrition
Timothy Jay Carney, Geoffrey P Morgan, Josette Jones, Anna M McDaniel, Michael Weaver, Bryan Weiner, David A Haggstrom
Our conceptual model demonstrates our goal to investigate the impact of clinical decision support (CDS) utilization on cancer screening improvement strategies in the community health care (CHC) setting. We employed a dual modeling technique using both statistical and computational modeling to evaluate impact. Our statistical model used the Spearman's Rho test to evaluate the strength of relationship between our proximal outcome measures (CDS utilization) against our distal outcome measure (provider self-reported cancer screening improvement)...
October 2014: Journal of Biomedical Informatics
A Alexander Beaujean, Jason Parkin, Sonia Parker
Previous research using the Cattell-Horn-Carroll (CHC) theory of cognitive abilities has shown a relationship between cognitive ability and academic achievement. Most of this research, however, has been done using the Woodcock-Johnson family of instruments with a higher order factor model. For CHC theory to grow, research should be done with other assessment instruments and tested with other factor models. This study examined the relationship between different factor models of CHC theory and the factors' relationships with language-based academic achievement (i...
September 2014: Psychological Assessment
Nora Döring, Lena M Hansson, Elina Scheers Andersson, Benjamin Bohman, Maria Westin, Margaretha Magnusson, Christel Larsson, Elinor Sundblom, Mikaela Willmer, Margareta Blennow, Berit L Heitmann, Lars Forsberg, Sanna Wallin, Per Tynelius, Ata Ghaderi, Finn Rasmussen
BACKGROUND: Childhood obesity is a growing concern in Sweden. Children with overweight and obesity run a high risk of becoming obese as adults, and are likely to develop comorbidities. Despite the immense demand, there is still a lack of evidence-based comprehensive prevention programmes targeting pre-school children and their families in primary health care settings. The aims are to describe the design and methodology of the PRIMROSE cluster-randomised controlled trial, assess the relative validity of a food frequency questionnaire, and describe the baseline characteristics of the eligible young children and their mothers...
April 9, 2014: BMC Public Health
Allison M Cole, Frederick M Chen, Paul A Ford, William R Phillips, Nancy G Stevens
BACKGROUND: More than 1100 community health centers (CHCs) in the United States provide primary care to 20 million underserved patients annually. CHCs have struggled to recruit and retain qualified physicians. OBJECTIVE: To understand physicians' work experiences in CHCs and identify major sources of satisfaction and dissatisfaction. METHODS: Using purposeful sampling, we conducted semistructured interviews with 12 family physicians practicing in CHCs...
April 1, 2014: Journal of Primary Care & Community Health
Matthew R Reynolds, Timothy Z Keith, Dawn P Flanagan, Vincent C Alfonso
The Cattell-Horn-Carroll (CHC) taxonomy has been used to classify and describe human cognitive abilities. The ability factors derived from the CHC taxonomy are often assumed to be invariant across multiple populations and intelligence batteries, which is an important assumption for research and assessment. In this study, data from five different test batteries that were collected during separate Kaufman Assessment Battery for Children-Second Edition (KABC-II; Kaufman & Kaufman, 2004) concurrent validity studies were factor-analyzed jointly...
August 2013: Journal of School Psychology
Tongdao Wang, Hong Zhang, Feifei Han, Lipeng Long, Zhenyang Lin, Haiping Xia
Alkali-resistant osmabenzene [(SCN)2(PPh3)2Os{CHC(PPh3)CHCICH}] (2) can undergo nucleophilic aromatic substitution with MeOH or EtOH to give cine-substitution products [(SCN)2(PPh3)2Os{CHC(PPh3)CHCHCR}] (R=OMe (3), OEt(4)) in the presence of strong alkali. However, the reactions of compound 2 with various amines, such as n-butylamine and aniline, afford five-membered ring species, [(SCN)2(PPh3)2Os{CH=C(PPh3)CH=C(CH=NHR')}] (R'=nBu(8), Ph(9)), in addition to the desired cine-substitution products, [(SCN)2(PPh3)2Os{CHC(PPh3)CHCHC(NHR')}] (R'=nBu(6), Ph(7)), under similar reaction conditions...
August 12, 2013: Chemistry: a European Journal
Bettina Berger, Anja Gerlach, Sylvia Groth, Ulla Sladek, Katharina Ebner, Ingrid Mühlhauser, Anke Steckelberg
BACKGROUND: Informed and shared decision-making require competences for both partners - healthcare professionals and patients. There is a lack of training courses in evidence-based medicine for patients and counsellors. OBJECTIVE: We investigated feasibility, acceptability and the potential effects of a 2 x 2.5 days training course on critical health competences in patients, patient counsellors, consumer representatives and healthcare professionals in Austria...
2013: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
Stefan C Dombrowski, Marley W Watkins
Development of the Woodcock-Johnson (3rd ed.; WJ-III; Woodcock, McGrew & Mather, 2001a) was guided in part by Carroll's (1993) 3-stratum theory of cognitive abilities and based on confirmatory factor analysis (CFA), even though Carroll used exploratory factor analysis (EFA) to derive his theory. Using CFA, McGrew and Woodcock (2001) found a 9-factor model across all age ranges. To determine if the 9-factor structure holds for the full WJ-III battery, we applied currently recognized best practices in EFA to 2 school-aged 42-subtest correlation matrices (ages 9–13 and 14–19 years)...
June 2013: Psychological Assessment
Philippe Golay, Isabelle Reverte, Jérôme Rossier, Nicolas Favez, Thierry Lecerf
The interpretation of the Wechsler Intelligence Scale for Children--Fourth Edition (WISC-IV) is based on a 4-factor model, which is only partially compatible with the mainstream Cattell-Horn-Carroll (CHC) model of intelligence measurement. The structure of cognitive batteries is frequently analyzed via exploratory factor analysis and/or confirmatory factor analysis. With classical confirmatory factor analysis, almost all cross-loadings between latent variables and measures are fixed to zero in order to allow the model to be identified...
June 2013: Psychological Assessment
Christopher R Niileksela, Matthew R Reynolds
This study was designed to better understand the relations between learning disabilities and different levels of latent cognitive abilities, including general intelligence (g), broad cognitive abilities, and specific abilities based on the Cattell-Horn-Carroll theory of intelligence (CHC theory). Data from the Differential Ability Scales-Second Edition (DAS-II) were used to create a multiple-indicator multiple cause model to examine the latent mean differences in cognitive abilities between children with and without learning disabilities in reading (LD reading), math (LD math), and reading and writing(LD reading and writing)...
May 2014: Journal of Learning Disabilities
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