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Time Estimation in Developmental Dyslexia: An Experimental Investigation

Open Journal of Medical Psychology 2014年第5期3卷 373-381页

作者： Azizuddin Khan Abdalla Abdal-hay Tabassum Qazi claudio lópez calle Ruth Clavijo Castillo Psychophysiology laboratory Department of Humanities and Social Sciences Indian Institute of Technology Bombay Mumbai India Facultad de Psicología Universidad de Cuenca Cuenca Ecuador Engineering Materials and Mechanical Design Faculty of Engineering South Valley University Qena Egypt Department of Psychology S.N.D.T University Churchgate Mumbai India

Time estimation is the ability to judge the duration or apprehend the passage of time by the order of occurrence of experience or by physiological rhythm (Fraisse, 1984). It plays quite a significant role in language disorder especially developmental dyslexia. It is characterized by deficits in phonological processing abilities. However, it is unclear what the underlying factors for poor phonological abilities or speech sound representations are. The deficit in phonological processes has been for the processing of paired tones or temporal sequences different when relatively short time intervals are used in individuals with dyslexia compared to typical readers. This paper presents the results of a study that was undertaken to determine the effects of method of time judgment, and paradigm on dyslexic and atypical readers. An experiment was conducted using 115 children (age: M = 12.23 years, SD = 1.30), 51 dyslexics and 64 typical readers. The data were obtained through the method of verbal estimation and reproduction. Analysis of variance was used to analyse the data. Time judgments data were analyzed using directional error. For directional error, all the main effects and few interactions were significant. Children with dyslexia showed more errors in time estimation (M = 0.59, SD = 0.52) as compared to typical readers (M = 0.83, SD = 0.74). Estimation of duration under the prospective paradigm was more accurate than under the retrospective paradigm for both dyslexics and typical readers. However, dyslexics were more error prone as compared to typical readers. Time judgment was accurate under verbal time estimation as compared to reproduction method.

关键词： Duration language Disorder Phonological Deficit Typical Reader

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An in-depth multi-technique characterization of rare earth carbonates-RE_(2)(CO_(3))_(3)·2H_(2)O-owning tengerite-type structure

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Journal of Rare Earths 2022年第8期40卷 1281-1290页

作者： luca Spiridigliozzi Mauro Bortolotti Grazia Accardo Alessandro Vergara Domenico Frattini claudio Ferone Raffaele Cioffi Gianfranco Dell'Agli Department of Civil and Mechanical Engineering University of Cassino and Southern LazioVia G.Di Biasio 4303043Cassino(FR)Italy Department of Industrial Engineering University of TrentoVia Sommarive 938123TrentoItaly Center of Hydrogen-Fuel Cell Research Korea Institute of Science and TechnologyHwarang-ro 14-gilSeongbuk-guSeoul136-791Republic of Korea Centre for Cooperative Research on Alternative Energies(CIC EnergiGUNE) Basque Research and Technology Alliance(BRTA)Alava Technology ParkCalle Albert Einstein 4801510Vitoria-GasteizSpain Department of Chemical Sciences University of Napoli“Federico II”Via Cintia80126NapoliItaly Graduate School of Energy and Environment Seoul National University of Science and TechnologyGongneung-ro 232Nowon-guRepublic of Korea Department of Engineering University of Napoli“Parthenope”Centro DirezionaleIsola C480143Napoli(NA)Italy INSTM-National Interuniversity Consortium of Materials Science and Technology

The present study has been conducted to contribute,once and for all,filling the lack of structural information for the whole class of rare earth(RE)carbonates owning the tengerite-(Y)structure.A complete structural characterization,carried out by Rietveld refinement of X-ray powder diffraction(XRD)data,was comparatively performed for the first time on several hydrated RE carbonates,having the general chemical formula RE_(2)(CO_(3))_(3)·χH_(2)O,RE=Y,Gd,Tb,Dy,Ho and *** samples share the same space group and lattice parameters similar to tengerite-(Y);the structures are also closely related,consisting in all cases of a three-dimensional framework of nine-fold coordinated RE atom polyhedral,linked together by carbonate *** addition to relatively minor changes in fractional coordinates of atom sites and corresponding interatomic distances,the only perceivable difference lies in the lattice parameters affected by the ionic radius of RE^(3+).However,in the case of Er,which has the lowest cationic radius among the analyzed RE,the stabilization of tengerite structure is at its limit condition,because the carbonate groups are heavily ***,FT-IR and Raman spectra confirm the main structural features obtained by Rietveld *** observed morphology of the various samples is almost the same,being characterized by the presence of bidimensional rod-like particles grouped in agglomerates,typical of tengerite crystals,thus indicating that the crystallization mechanism occurring during the hydrothermal synthesis is the same,irrespective of the involved RE cation.

关键词： Rare Earth carbonates Tengerite Structural refinement Hydrothermal treatment

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Altered Expression of Aromatase, Estrogen Receptors and Progesterone Receptors in Human leydig Cell Hyperplasia

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Advances in Bioscience and Biotechnology 2015年第1期6卷 1-10页

作者： Candela Rocío González Pablo Ignacio Felipe Inserra claudio Terradas Roberto Ponzio Elisa Puigdomenech Oscar levalle Alfredo Daniel Vitullo Ricardo Saúl Calandra Silvia Ines Gonzalez-Calvar Research Center of Biomedical Biotechnology Environmental and Diagnostic Studies Maimónides University Buenos Aires Argentina División Endocrinología Hospital Durand Buenos Aires Argentina Facultad de Medicina Universidad de Buenos Aires Buenos Aires Argentina Instituto Medico PREFER Calle 995 No 2348 San Martin Argentina laboratorio de Endocrinología Molecular de la Reproducción Instituto de Biología y Medicina Experimental (CONICET) Buenos Aires Argentina laboratorio de Endocrinología Molecular de la Reproducción Instituto de Biología y Medicina Experimental (CONICET) Facultad de Medicina Universidad de Buenos Aires Buenos Aires Argentina

Testicular function is regulated by pituitary hormones and also by paracrine and autocrine factors. A number of reports have pointed out the importance of estrogens and progesterone in male reproductive tract. Recently, we have reported in testicular biopsies from men with Sertoli Cell Only Syndrome (SCO) or Hypospermatogenesis (H) with leydig cell hyperplasia (lCH) an increase in the expression of the TGFB1 and its receptors AlK1 and endoglin, which are involved in the proliferation of leydig cells. The aim of the present work was to analyze the expression of aromatase, estrogen and progesterone receptors (ERs, PR) in pathological testicular biopsies with SCO or H with and without lCH. The ERs and CYP19 proteins were detected in the leydig cells from all pathological biopsies analyzed. Biopsies with SCO or H with lCH showed an increment in the immunostaining of CYP19 and ERs in the leydig cells respect to biopsies without lCH. The gene expression of CYP19 was increased in SCO or H biopsies with lCH respect to SCO and H biopsies without lCH. PR was localized in leydig cells and showed a significant increment in biopsies with lCH respect from biopsies without lCH. The gene expression of both PRA and PRB was increased in biopsies with lCH respect to biopsies without lCH. In concussion, alterations in the gene expression of aromatase, ERs, and PR and the likely interactions of these systems with locally produced factors such as growth factors and cytokines, might lead to leydig cell proliferation in testicular pathology.

关键词： Aromatase Progesterone Estrogen leydig

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