Momentos de mi clase

Se presenta las actividades de la maestra Avelina Antona (Alburquerque, Badajoz) para dinamizar sus clases a partir de organizar una visita a un mercado y en relación a las experiencias personales de un emigrante en Hamburgo.It presents the activities of the teacher Avelina Antona (Alburquerque, Badajoz) to dynamize their classes from organizing a visit to a market and in relation to the personal experiences of an emigrant in Hamburg

CIJENA KNJIGE ANTONA FRANKIJA

This work consists of a critique publication of a colophon text in verse form, which was written in the 18th century cursive Glagolitic script at the end of a book (kvadirnica) of Invocations, compiled by the priest Anton Franki from Omišalj, along with the remaining paratexts from the same book. Special consideration is given to the discourse characteristics, as determined by the author’s claim to the right of remuneration for his scribal work.U radu se kritički objavljuje tekst kolofona u stihovima, koji je pisan kurzivnom glagoljicom u 18. st. na kraju knjižice (kvadirnice) zaklinjanja koju je izradio svećenik Anton Franki iz Omišlja, te ostali paratekstovi iste knjige. Posebno se razmatraju specifičnosti diskursa određena autorovim traženjem novčane naknade za svoj pisarski rad

Review: Vidler, Laura L. Performance Reconstruction and Spanish Golden Age Drama: Reviving and Revising the Comedia

Review of Vidler, Laura L. Performance Reconstruction and Spanish Golden Age Drama: Reviving and Revising the Comedia. Palgrave Macmillan, 201

Repeatability of the measurement of the horizontal phoria in near vision with cover test and modified thorington method

Objectiu- Estudiar la repetibilitat del cover test alternant i el mètode modificat de Thorington. Mètode- En aquest estudi han participat 10 persones joves i sanes amb agudesa visual de prop igual o superior a 20/20 amb la seva correcció habitual. El cover test es va realitzar amb un test a 40 cm d'agudesa visual de 20/25 i màxima il·luminació. Thorington es va realitzar a 40 cm amb la vareta Maddox davant de l'ull dret i la targeta corresponent, la il·luminació de la sala era reduïda. Ambdues mesures es van realizar dues vegades pel mateix examinador amb un interval de 24 hores. L'anàlisi estadística es va realitzar amb la versió SPSS 22.0. Resultats- La mitjana absoluta de les diferències i la desviació estàndard entre les mesures del cover test va ser d'1.000±0.943 i 0.400±0.943 per Thorington (p=0.000). Bland & Altman mostren que hi ha una diferència d'aproximadament 0,5 entre les dues proves delcovertest i no hi ha diferència apreciable entre les dues mesures amb el mètode de Thorington. S'obté una bona concordança en tots dos mètodes. Conclusions- El cover test alternant i Thorington modificat van presentar una bona repetibilitat intraexaminador en visió de prop. Tots dos mètodes són precisos per quantificar la fòria en visió propera

Concerns about the use of ecosystem services as a tool for nature conservation: From misleading concepts to providing a “price” for nature, but not a “value”

1. By definition, ecosystem services (ES) are the “benefits that people obtain from ecosystems”, and this paradigm has been increasingly used in recent decades in ecological planning, for policy development and environmental management.2. In this short commentary, we highlight the main criticisms suggested by several scientists against the currently used and abused ecosystem services (ES) approach.3. We underline how this concept needs a more accurate scientific assessment and theoretical development, repeating that one of the most critical concerns is that this paradigm assigns a “price”, but not a “value” to nature.4. We also discuss different theoretical concerns, as for example the replacement of natural “resource” by “service” promoted by the ES paradigm thereby changing the implications of such assessments. Conserving resources is essential for survival of several organisms, while conservation of a “service” is mainly related to the human species.5. Finally, we warn against the mechanism of ‘crowding out’ behind the ES approach, which replaces intrinsic motivations (nature) against extrinsic ones (benefits), highlighting that people do not need to attach different values to ecosystems (monetary, cultural, aesthetic, etc.) to understand the value of nature

Membership, lithium, and metallicity in the young open clusters IC 2602 and IC 2391: enlarging the sample

We present lithium abundances for ~50 X-ray selected candidate members of the 30-50 Myr old open clusters IC 2602 and IC 2391. These data enlarge and extend to cooler temperatures previous Li surveys of these clusters by Stauffer et al. (1989) and Randich et al. (1997). We also give for the first time an estimate of the metallicity of the two clusters which turns out to be close to solar. Radial velocity measurements together with Halpha chromospheric emission and the presence/absence of other spectroscopic features are used to ascertain the membership status for the sample stars not yet confirmed as cluster members; rotational velocities have also been determined for all sample stars. Stars more massive than ~1 Mo in both clusters show no sign of significant Li depletion, while lower mass stars are all lithium depleted, with the amount of Li depletion increasing to cooler temperatures. We confirm that the late G and early K stars in IC 2602 present a star-to-star scatter in Li abundances similar to, but not as large as the one in the Pleiades. A scatter is also seen among late-K and M dwarfs. Unlike in the Pleiades and Alpha Per clusters, the scatter among early-K stars in IC 2602 shows only marginal correlation with rotation. Our data suggest that the drop-off of lithium towards lower masses may start at an earlier color in IC 2391 than in IC 2602, but larger cluster samples are needed to confirm this result. In addition, whereas G and early K stars in the two clusters are, on average, more Li rich than their counterparts in the Pleiades, a fraction of the coolest stars, in particular in IC 2391, are as depleted as as the lowest-Li Pleiades stars of the same mass. If they continue depleting Li on their way to the main sequence, they are expected to be more Li depleted than the Pleiades at the age of the latter cluster.Comment: to appear in A&

POISSON project - II - A multi-wavelength spectroscopic and photometric survey of young protostars in L 1641

Characterising stellar and circumstellar properties of embedded young stellar objects (YSOs) is mandatory for understanding the early stages of the stellar evolution. This task requires the combination of both spectroscopy and photometry, covering the widest possible wavelength range, to disentangle the various protostellar components and activities. As part of the POISSON project, we present a multi-wavelength spectroscopic and photometric investigation of embedded YSOs in L1641, aimed to derive the stellar parameters and evolutionary stages and to infer their accretion properties. Our database includes low-resolution optical-IR spectra from the NTT and Spitzer (0.6-40 um) and photometric data covering a spectral range from 0.4 to 1100 um, which allow us to construct the YSOs spectral energy distributions (SEDs) and to infer the main stellar parameters. The SED analysis allows us to group our 27 YSOs into nine Class I, eleven Flat, and seven Class II objects. However, on the basis of the derived stellar properties, only six Class I YSOs have an age of ~10^5 yr, while the others are older 5x10^5-10^6 yr), and, among the Flat sources, three out of eleven are more evolved objects (5x10^6-10^7 yr), indicating that geometrical effects can significantly modify the SED shapes. Inferred mass accretion rates (Macc) show a wide range of values (3.6x10^-9 to 1.2x10^-5 M_sun yr^-1), which reflects the age spread observed in our sample. Average values of mass accretion rates, extinction, and spectral indices decrease with the YSO class. The youngest YSOs have the highest Macc, whereas the oldest YSOs do not show any detectable jet activity in either images and spectra. We also observe a clear correlation among the YSO Macc, M*, and age, consistent with mass accretion evolution in viscous disc models.Comment: 61 pages, 16 figures; A&A in pres

Convective overshooting and production of s-nuclei in massive stars during their core He-burning phase

With the "post-processing" technique we explore the role of the convective overshooting on the production of s-nuclei in stellar models of different initial mass and metallicity ($15 \leq M_{ZAMS}/M_{\odot} \leq 25$; $10^{-4} \leq Z \leq 0.02$), considering a range of values for the parameter $f$, which determines the overall efficiency of convective overshooting.We find enhancements in the production of s-nuclei until a factor $\sim 6$ (measured as the average overproduction factor of the 6 s-only nuclear species with $60\lesssim A\lesssim90$) in all our models of different initial mass and metallicity with $f$ in the range $0.01{-}0.035$ (i.e. models with overshooting) compared to the production obtained with "no-overshooting" models (i.e. models with the same initial mass and metallicity, but $f=10^{-5}$). Moreover the results indicate that the link between the overshooting parameter $f$ and the s-process efficiency is essentially monotonic in all our models of different initial mass and metallicity. Also evident is the higher s-process efficiency when we progressively increase for a given f value both the mass of the models from 15 M$_\odot$ to 25 M$_\odot$ and the Z value from 10$^{-4}$ to 0.02. We also briefly discuss the possible consequences of these results for some open questions linked to the s-process weak component efficiency, as well as a "rule of thumb" to evaluate the impact of the convective overshooting on the yields of a generation of stars.Comment: 12 pages, 6 figures, A&A accepted (corrected typos plus minor changes in order to fulfill the guidelines for A&A manuscripts