1,123 research outputs found
Iliceto Shield Wire Scheme. An application to HV line in Tanzania
No full textIliceto Shield Wire Scheme (ISWS) is a rural electrification scheme that uses the shield wires of High Voltage (HV) lines as conductors and an earth return to provide power at Medium Voltage (MV) to remote locations at a lower cost than the traditional methods. The present paper includes the main results of an application of this method to a HV line in Tanzania, Chalinze-Hale-Tanga. The application is finalized to find out its technical feasibility. The results show that rural electrification of villages near the Chalinze-Hale-Tanga with the ISWS is technically feasible. It allows also significant economical savings compared to the traditional scheme, mainly because no new tower or pylon need to be erected except for MV spur lines from the HV line to the single village
First results on an application of Iliceto Shield Wire Scheme to pilot project in Tanzania
No full textIliceto Shield Wire Scheme (ISWS) is a rural
electrification scheme that uses the shield wires of High Voltage
(HV) lines, as conductors, and an earth return to provide power
at Medium Voltage (MV) to remote villages along the path of the
HV line with no other access to the electricity system, at a much
lower cost than the traditional methods (new dedicated MV
lines). The paper presents the results of an application of this
technique to a HV line in Tanzania, Chalinze-Hale-Tanga,
identified as pilot project for subsequent realization. The case
study has been selected, as pilot project, by the National
electricity utility of Tanzania, Tanesco, and analyzed in detail,
verifying the technical feasibility. For doing that, a simulation
model has been developed and applied. The model is easy and
flexible for future modification of parameters and reuse in
similar scenarios
La comprensione di metafore e di metonimie come abilità metalinguistiche complesse: uno studio esplorativo con ragazzi dagli 11 ai 13 anni.
No full textThe article describes a study on metaphor and metonymy comprehension in subjects aged between 11 and 13 years, which involved 108 students in the 3 Junior High School grades. They were given a Metaphor Comprehension Test (TCM, Pinto, Melogno, Iliceto, 2006), a metonymy comprehension test and the Raven’s Progressive Matrices (Raven, 1982). Results showed a significant and parallel performance increase for the two metasemantic tests, strong correlations between the metasemantic and cognitive measures and a satisfactory Cronbach’s alpha for the metonymy Test
Quando la dialettofonia è utile metalinguisticamente in italiano. Ricerche in alcune regioni dell'Italia meridionale
No full textThis research study explores the relations between Italian / Vernacular bilingualism in primary school children in a Southern region of Italy, Campania. 202 5th graders (m.a.: 10,6 y.) were recruited, subdivided into balanced and non-balanced Italian-vernacular bilinguals and into high and low socio-cultural background groups. They were all administered some subtests of an Italian metalinguistic ability test (TAM-2, Pinto, Candilera, Iliceto, 2003). Results showed that balanced bilinguals, whatever the socio-cultural background, outperformed their non-balanced peers in metalinguistic abilities
Esplicitare la comprensione di metafore:uno studio evolutivo su soggetti dai 9 ai 14 anni
No full textThis empricial research studies the ability of children aged 9 to 14 to explain the meaning of metaphors. This ability is viewed as a specific and explicit type of metalinguistic
processing. A task of metaphor comprehension, composed of
12 items of different types of metaphors, some physico-psychological and some conceptual, has been created and
administered together with some subtests of a validated Italian
metalinguistic ability test for the same age range, the TAM-2 (Pinto, Candilera, Iliceto, 2003) and the Raven's SPM38. Results showed that metaphor comprehension significantly evolves across ages and strongly correlates with other metalinguistic tasks and with the SPM38
Capacità argomentative delle soluzioni delle Matrici di Raven SPM38 e capacità metalinguistiche. Studi su studenti liceali.
No full textThis article presents a study on argumentative abilities related to the solutions given to the Raven's SPM38, and on metalinguistic abilities as measured by a specific test devised for the adult Italian population, the TAM-3 (Pinto, Iliceto, 2007). 200 high school students were tested in Naples and in Rome. Results show that female students outperform their male counterparts either in the argumentative capabilities in the Raven's test and in metalinguistic test, although there are no significant differences in the number of correct solutions in the SPM38. Significant correlations were found between the two tests
The combined interpretation of vertical electric and magnetotelluric soundings: a case history
No full textA case history in which magnetotelluric (MT) soundings and Vertical Electric Soundings (VES) were performed on a structurally simple geology is presented. The comparison of MT synthetic apparent resistivity curves, computed using the one-dimensional model parameters derived from VES interpretation, with the experimental ones, is discussed. Inversion of MT data gives a range of oscillation for model parameters which is conditioned by data scattering. A careful assessment of the inversion effectiveness, by means of suitable statistical tests, allows us to single out the most statistically reliable model parameters. -Author
The pilot studies on the MKT-2 (Metalinguistischer Kompetenztest Teil 2, Jessner, Hofer, & Pinto 2015) and the MKT-3 (Metalinguistischer Kompetenztest Teil 3, Jessner, Pellegrini, Moroder, Hofer, & Pinto 2015)
No full textThis article presents the results of the pilot studies conducted on the MKT-2 (Metalinguistischer
Kompetenz Test Teil 2 for subjects 9-14) and the MKT-3 (Metalinguistischer Kompetenztest
Teil 3, for late adolescence-adulthood), two tests translated from the original Italian metalinguistic
ability test TAM-2 (Pinto, Candilera, & Iliceto 2003) and TAM-3 (Pinto, Iliceto 2007) into German.
As these German versions were, after a lenghty translation process, administered for the first time to
native speakers of German, (Jessner, Hofer, Pellegrini, & Pinto 2015), it was particularly significant
to test their impact on German-speaking subjects. The pilot studies were conducted in three small
centers of South Tyrol (North of Italy) on native speakers of German. Performances were measured
by descriptive and inferential statistics indicators, and by comparison with the normative samples of
the Italian TAM-2 and TAM-3. Results showed that both German pilot samples attained good metalinguistic
performances at the implicit level, as measured by the L scores of each test, and in line with
the Italian normative samples at the corresponding ages, and also at the explicit level, as measured
by the ML scores of these tests, which were even superior to those of the Italian subjects. In either
MKT-2 and MKT-3, Skewness and Kurtosis values were within range, reliability coefficients ranged
from average to high, intercorrelations ranged from moderate to strong, and by means of Principal
Component Analysis (PCA), a major component was extracted, that represents the metalinguistic
core of the test, as measured by the ML subtests. These preliminary results encourage to further systematic
validation studies on both MKT-2 and MKT-3
Dilated cardiomyopathy and myocarditis: classification, clinical and autoimmune features.
No full textThe validation of the THAM-2 (Test de Habilidades Metalingüísticas n. 2, Núñez Delgado, & Pinto 2015)
No full textThis article describes the statistical analyses performed for validating the THAM-2, a metalinguistic ability test for children aged from 9-14, translated from the original Italian TAM-2 (Pinto, Candilera & Iliceto 2003) into Spanish (Pinto, Titone & Gonzáles Gil 2000 ; Núñez Delgado & Pinto 2015) with partial adaptations. The test is composed of six subtests : Comprehension, Synonymy, Acceptability, Ambiguity, Grammatical function and Phonemic Segmentation. The scoring system is based on the distinction between Linguistic (measuring metalinguistic awareness at the implicit level) and Metalinguistic scores (measuring metalinguistic awareness at the explicit level). Three hundred and one Spanish-speaking children between 9 and 16 (mean age = 12.5 ; SD = 1.3) participated in the study. Based on the Spanish school system, the sample was subdivided into four grades from 4-5 primaria (4th and 5th grade) to 2° ESO (8th grade). All the participants took the THAM-2 and the Raven’s SPM3 (Raven et al. 1998). Skewness and Kurtosis showed that the data were normally distributed. ANOVAs evidenced relevant group differences as a function of two main
factors : gender, with females outperforming males, and education level, where each school grade was associated with significant improvement in performances. Inter-rater agreement, as measured by Cohen’s Kappa (Cohen 1960) was highly satisfactory. Cronbach’s alpha, calculated on the ML scales, presented acceptable internal consistency estimates. Correlations between the THAM-2 and the SPM38 were significant, although moderate. The results of Confirmatory Factor Analysis (CFA, Brown 2006) overall supported the theoretical two-factor structure of the original test, the ML and the L factor, but with a strong asymmetry between the two factors. Only the ML emerged as a unitary
construct, well measured by the all the ML scales, whereas the L factor was well measured only by two out of six scales. These results stress the metalinguistic character of this test, which lends itself to various types of studies in education, especially in correlation with metacognitive competences
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