4,612 research outputs found
Acustica dell'ambiente; Apprendimento canoro; Apprendimento prenatale; Bioacustica; Canto; Canto antifonale; Canto territoriale; Cantori misti; Comunicazione acustica; Cori (Canto di gruppo); Dialetto; Duetto canoro; Ecolocalizzazione; Imitazione vocale; Imprinting canoro; Infrasuoni; Modello genetico; Richiamo; Riconoscimento individuale; Segnali vibratori; Sottocanto; Spettrogramma; Suono, Analisi del; Suono, Registrazione; Ultrasuoni; Vocalizzazione
No full textDizionario dei termini relativi all'etologia, in questo ambito Pavan G. tratta dei lemmi relativi alla bioacustica e all'uso del suono negli animali
Massimiliano Pavan, La crisi della scuola nel IV secolo d. C.
No full textMarrou H.-I. Massimiliano Pavan, La crisi della scuola nel IV secolo d. C.. In: L'antiquité classique, Tome 22, fasc. 1, 1953. pp. 223-224
Jacques Chiffoleau, La comptabilité de l'au-delà. Les hommes, la mort et la religion dans la région d' Avignon à la fin du Moyen Age.
No full textCrouzet-Pavan Elisabeth. Jacques Chiffoleau, La comptabilité de l'au-delà. Les hommes, la mort et la religion dans la région d' Avignon à la fin du Moyen Age.. In: Bulletin Monumental, tome 141, n°1, année 1983. pp. 97-98
Drosophila neoelliptica Pavan e Magalhaes
No full textDrosophila neoelliptica Pavan e Magalhães in Pavan, 1950 (Fig. 14) Non-type material. Strains NEO-1 (Cantareira, São Paulo, Brazil): 15 males dissected; and NEO-2 (Aguaí, Santa Catarina, Brazil): 20 males dissected. Male terminalia. This species has epandrial extensions, aedeagus shape and pregonites very similar to the D. emarginata (Fig. 14B, D, E). The epandrial ventral processes are short and parallel (Fig. 14D). Each surstylus has the smallest number of surstylar teeth, with an average of 20 chitinous teeth, irregularly arranged throughout the internal region, plus 6 thinner primary teeth arranged in a row and a tuft of surstylar bristles (Fig. 14A, D). The hypandrium is very similar to that of D. emarginata, however the median gonocoxites are divergent at the end (Fig. 14C, D). The most notable characteristics that differ in relation to D. emarginata are found in the aedeagus, due to the presence of a ventral protuberance, named aedeagal ventral crest and the central axis of the aedeagus has a long ventral protuberance (Fig. 14B, E). The phallapodeme is longer (Fig. 14E).Published as part of Roman, Bruna Emilia & Madi-Ravazzi, Lilian, 2021, Male terminalia morphology of sixteen species of the Drosophila saltans group Sturtevant (Diptera, Drosophilidae), pp. 523-544 in Zootaxa 5061 (3) on page 538, DOI: 10.11646/zootaxa.5061.3.7, http://zenodo.org/record/564995
Two-phase thermophilic anaerobic digestion process for biohythane production treating biowaste: preliminary results.
No full textThis paper deals with the optimisation of a two-phase anaerobic process treating biowaste for hydrogen and methane production. Nor physical neither chemical pre treatments were used to optimise the process. The work was carried out at pilot scale, using two CSTRs (200 l and 380 l working volume respectively) both maintained at thermophilic temperature (55°C) and fed semi-continuously with biowaste. The experiment was divided in three periods; during the first two periods the organic loading rate was maintained at 20 kgTVS/m3d and the hydraulic retention time was changed from 6.6 to 3.3 days, while in the last period the digestate of the second reactor was recirculated to the first reactor in order to buffer the system and control pH at levels around 5. The HRT was maintained at 3.3 days and the OLR was decreased at 16.5 kgTVS/m3d. The best yield was obtained in the last period where a specific hydrogen production of 50.9 l/kgVSfed was reached, with a H2 content in biogas from the first reactor of 36%. The methanogenic stage after the hydrogen conversion reached a specific biogas production of 0.62 m3/kgVSfed and an overall organic removal above 70%, without any stability problem. The overall biogas production was some 1.5 m3 per day with a gas composition of 10% H2 and 50% CH4
Drosophila neosaltans Pavan e Magalhaes
No full textDrosophila neosaltans Pavan e Magalhães in Pavan, 1950 (Fig. 15) Non-type material. Strains H 1 (Rio de Janeiro, Brazil): 21 males dissected; and AG (Aguaí, Santa Catarina, Brazil): 15 males dissected. Male terminalia. Although this species belongs to the elliptica subgroup, it is the one that most differs from the others in its subgroup. The epandrium does not present the epandrial ventral processes in the ventral region; instead, this region displays two small saliences (Fig. 15C). The epandrial extensions are very similar to those of D. emarginata and D. neoelliptica (Fig.15C, D). Each surstylus has approximately 34 surstylar teeth, irregularly arranged throughout the internal region, plus 7 thinner primary teeth arranged in a row and a tuft of long surstylar bristles (Fig. 15B–D). The hypandrium is similar to D. emarginata and D. neoelliptica, elongated and thin, however, the bristles are located at the end of each side of the median gonocoxite (Fig. 15C). The aedeagus is the smallest of this subgroup and the apex does not end in a hook shape, but in a cylindrical shape, forming a groove at its end (Fig. 15A–E). The dorsal portion of the aedeagus is covered by long scales-like structures (Fig. 15A, D). As in D. neoelliptica, this species has a structure called aedeagal ventral crest, but this structure is formed by two isolated protuberances on the central and ventral axis of the aedeagus and it is covered with scales (Fig. 15A, E). The lateral postgonites are smaller and taper at the extremity (Fig. 15A, D, E). The pregonites are not fused and have a bristle at each end (Fig. 15E).Published as part of Roman, Bruna Emilia & Madi-Ravazzi, Lilian, 2021, Male terminalia morphology of sixteen species of the Drosophila saltans group Sturtevant (Diptera, Drosophilidae), pp. 523-544 in Zootaxa 5061 (3) on page 538, DOI: 10.11646/zootaxa.5061.3.7, http://zenodo.org/record/564995
Anaerobic fermentation of organic municipal solid wastes for the production of soluble organic compounds
No full textAfter investigating the application of the mesophilic and thermophilic processes in completely stirred, batch, and plug-flow reactors, in this study the authors consider the anaerobic fermentation of source-sorted organic municipal solid wastes in psychrophilic conditions (14?22 °C) without pH control. The pilot-scale reactor was operated in a batch mode, with a hydraulic retention time of 4?4.5 d. The production of soluble COD from the particulate matter was (on average) 0.27 gCOD per gram of total volatile solids fed to the reactor when operating with a total solids content of 20?35 g/L. The volatile fatty acids (VFA) were 15% of the soluble COD produced after 4 d of reaction. These values are far lower than those found in mesophilic and thermophilic conditions, where the production of soluble COD ranged from 0.5 up to 0.9 gCOD/gTVSfed and volatile fatty acids could reach 90% of soluble COD. Further, the first-order reaction constant for the hydrolysis process, Kh, for the psychrophilic conditions was found equal to 0.11 d-1 at 20 °C, while it was in the range 0.2?0.4 d-1 when operating in mesophilic or thermophilic conditions. Conclusively, the study of the psychrophilic fermentation process allowed for completing the scenario of different options of anaerobic solid-state fermentation of organic waste. Though mesophilic and thermophilic processes resulted in being more effective in dissolution of particulate matter, psychrophilic processes can be of some interest because they are simpler and energy saving. In particular, psychrophilic processes can be useful for the production of rough soluble COD to be used, e.g., for sustaining the biological nutrients removal processes in wastewater treatment. <br/
Drosophila bromelioides Pavan and Cunha 1947
No full text<i>Drosophila bromelioides</i> Pavan and Cunha, 1947 <p> <i>Drosophila bromelioides</i> Pavan and Cunha, 1947: 24. Val (1982): redescription (male genitalia).</p> <p> DIAGNOSIS: Yellow to pale brown, average thorax length 1.02 (♂) to 1.14 (♀) mm; arista with 4-2 dorsal-ventral branches; most similar to <i>bromeliae</i> Sturtevant but differs most notably by the aedeagal shaft in <i>bromelioides</i> nearly straight in lateral view (vs. acutely bent, sometimes at 90°); distiphallus slightly shorter, wider, anteroventral margin more lobate in <i>bromelioides</i>; oviscapt 300–320 µm, spermatheca higher than wide, introvert ca. 0.6× capsule length.</p> <p>DESCRIPTION: See Pavan and Cunha (1947) (external, internal soft organs, immatures, chromosomes), redescription by Schmitz (2010) (especially genitalia).</p> <p>TYPE: Not reported by Pavan and Cunha (1947).</p> <p>DISTRIBUTION: Southern Brazil, states of Rio Grande do Sul, Santa Catarina, Parańa, São Paul, Goías, Minas Gerais, Bahia (summarized in Schmitz, 2010).</p> <p> COMMENTS: A highly polyphagous species, taken/reared from 42 species of flowers in 16 families (Schmitz, 2010). Like <i>D. bromeliae</i>, this species can, with care, be cultured on standard lab medium (Schmitz, 2010).</p>Published as part of <i>Grimaldi, David A., 2016, Revision of the Drosophila bromeliae Species Group (Diptera: Drosophilidae): Central American, Caribbean, and Andean Species, pp. 1-56 in American Museum Novitates 2016 (3859)</i> on page 24, DOI: 10.1206/3859.1, <a href="http://zenodo.org/record/5368683">http://zenodo.org/record/5368683</a>
Manuale per la realizzazione di Unitá di Apprendimento
No full textIl testo è organizzato secondo un percorso scandito su tre tappe:
- la prima, di tipo teorico, mira a spiegare i fondamentali aspetti di riferimento attraverso i quali comprendere le unità di apprendimento proposte;
- la seconda di tipo descrittivo, con le unità di apprendimento sviluppate;
- la terza di tipo progettuale, potrebbe guidare l’insegnante ad una rielaborazione autonoma delle unità di apprendimento
Insegnare le abilità sociali
No full textL'articolo presenta la progettazione di UDA per la formazione delle competenze social
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