Short- and long-term changes in chromosomal inversion polymorphism and global warming: Drosophila subobscura from the Balkans

The chromosomal inversion polymorphism of Drosophila subobscura is adaptive to environmental changes. The population of Petnica, Serbia, was chosen to analyze short- and long-term changes in this polymorphism. Short-term changes were studied in the samples collected in May, June, and August of 1995. The inversion polymorphism varied over these months, although various interpretations are possible. To analyze long-term changes, samples obtained in May 1995 and May 2010 were compared. The frequency of the 'cold' adapted inversions (Ast, Jst, Ust, Est, and Ost) decreased and that of the 'warm' adapted inversions (A2, J1, U1+2, and O3+4) increased, from 1995 to 2010. These changes are consistent with the general increase in temperature recorded in Petnica for the same period. Finally, the possible response of chromosomal polymorphism to global warming was analyzed at the regional level (Balkan peninsula). This polymorphism depends on the ecological conditions of the populations, and the changes observed appear to be consistent with global warming expectations. Natural selection seems to be the main mechanism responsible for the evolution of this chromosomal polymorphism.

High pressure induced changes on sarcoplasmic protein fraction and quality indicators

The combined effect of pressure and mild temperature treatments on bovine sarcoplasmic proteins and quality parameters was assessed. M. longissimus dorsi samples were pressurised in a range of 200–600 MPa and 10–30 °C. High Pressure Processing (HPP) induced a reduction of protein solubility (p < 0.001) compared to non-treated controls (NT), more pronounced above 200 MPa. HPP at pressures higher than 200 MPa induced a strong modification (p < 0.001) of meat colour and a reduction of water holding capacity (WHC). SDS–PAGE analysis demonstrated that HPP significantly modified the composition of the sarcoplasmic protein fraction. The pressurisation temperature mainly affected protein solubility and colour; a smaller effect was observed on protein profiles. Significant correlations (p < 0.001) between sarcoplasmic protein solubility and both expressible moisture (r = −0.78) and colour parameters (r = −0.81 to −0.91) suggest that pressure induced denaturation of sarcoplasmic proteins could influence to some extent WHC and colour modifications of beef. Changes in protein band intensities were also significantly correlated with protein solubility, meat lightness and expressible moisture. These results describe the changes induced by HPP on sarcoplasmic proteins and confirm a relationship between modification of the sarcoplasmic protein fraction and alteration of meat quality characteristics

Els nens i nenes amb “Dictamen d’escolarització” i amb suport del CDIAP: estudi de les dimensions de l’atenció a les necessitats especials de l’alumnat, entre tres i sis anys, escolaritzat en un centre públic de la comarca d’Osona

La meva recerca ha tingut com a punt de partida “Els nens i nenes amb “Dictamen d’escolarització” i amb suport del CDIAP: estudi de les dimensions de l’atenció a les necessitats especials de l’alumnat, entre tres i sis anys, escolaritzat en un centre públic de la comarca d’Osona”. A partir d’aquí, s’ha elaborat un marc teòric a partir de les lleis d’educació, decrets que regulen els diferents serveis i un seguit de conceptes bàsics. Un cop elaborat aquest marc teòric per tal de recollir les dades dels alumnes, de tres a sis anys, d’una escola en concret s’ha dissenyat un instrument de recollida de dades que li diem full resum de serveis (FRS). El FRS és un instrument que ens ha servit per recollir totes les dades d’alumnes amb necessitats específiques i, sobretot, per saber quin suport reben per part de l’escola i per part d’altres serveis. A més a més, per recollir informació sobre els diferents serveis que atenen aquesta diversitat s’ha elaborat un guió d’entrevistes (GE). Aquest GE serveix per recollir els aspectes més importants de les entrevistes realitzades a l’EAP (Equip d’Assessorament i Orientació Psicopedagògica), CDIAP (Centre de Desenvolupament Infantil i Atenció Precoç) i CSMIJ (Centre de Salut Mental Infantil i Juvenil). A partir de la informació extreta dels dos instruments, s’han elaborat unes conclusions respecte els objectius plantejats en aquest projecte i la pregunta plantejada a l’inici.