Contribution to the knowledge of the family Otoplanidae Hallez, 1892 (Rhabditophora, Proseriata) in the Mediterranean

A growing awareness is rising that present perception of marine biodiversity is inadequate, and based upon unrepresentative data. The inadequacy of knowledge on taxonomy and distribution of marine organisms is particularly acute for interstitial meiofauna, especially for "soft bodied" taxa, which necessitate of observations on both living and fixed specimens. Among these groups, information on Platyhelminthes, a species-rich, ubiquitous and diverse taxon, is at present far from adequate, and is entirely absent for entire biogeographical regions. In this scenario, my research aimed to gather data in the composition and distribution of a family of Platyhelminthes Proseriata, the Otoplanidae Hallez, 1892, in biogeographically significant sectors along the coasts of Mediterranean. The most striking results of a series of sampling campaigns is the great number of new Otoplanidae species found. In this work fifteen new species, belonging to the genus Parotoplana Meixner, 1938 are formally described: P. pythagorae Delogu & Curini-Galletti, 2007; P. spathifera Delogu & Curini-Galletti, 2007; P. terpsichore Delogu & Curini-Galletti, 2007; P. jondelii Delogu & Curini-Galletti, 2007; P. cucullata Delogu et al., 2008; P. fretigaditani Delogu et al., 2008; P. varispinosa Delogu et al., 2008; P. mastigophora Delogu et al., 2008; P. geminispina sp. n., P. crassispina sp. n., P. carthagoensis sp. n., P. ichnusae sp. n., P. pulchrispina sp. n., P. obtusispina sp. n. and P. axii sp. n

LA FUNZIONE DI MASSA COSMOLOGICA

1995/1996VIII Ciclo1969Versione digitalizzata della tesi di dottorato cartacea

UN APPROCCIO DINAMICO AI PROBLEMI DI OTTIMIZZAZIONE VETTORIALE

2000/2001XIII Ciclo1969Versione digitalizzata della tesi di dottorato cartacea

the construction of a land image: data and their space-time visualization / LA COSTRUZIONE DI UN'IMMAGINE DEL TERRITORIO: I DATI E LA LORO VISUALIZZAZIONE SPAZIO-TEMPORALE

tesi di dottorato di ricerca Relatori: L. Bazzanella, J. Borsboom, A. De Ross

Studi su Publilio Optaziano Porfirio

La presente Tesi di Dottorato analizza la figura e l'opera del poeta di età costantiniana Publilio Optaziano Porfirio, inventore dei carmi figurati a versus intexti, affrontando problemi filologici e letterari specifici

L'ICSI in pazienti poor responders: la metodica migliore?

Objective: to evaluate and, if it possible, to improve the result of FIVET cycles in "poor responders" patients by intracitoplasmatic spermatozoon injection (ICSI). Methodology and materials: from january 2006 to june 2008 we tested 80 poor responders women with normal semen partner (sec.WHO 1999: n° spermatozoon >20 million /ml; mobility > 50%; normal forms > 30%) or with light oligoospermia. The 80 women were random selected into 2 groups: the group 1 with 40 poor responder women with 40 ICSI cycles. The group 2 with 40 poor responder women with 40 FIVET cycles Results: significant differences between the 2 groups about the stimulation and fecundation parameters weren’t highlighted while the implantation and the normal pregnancy rates where significantly in favour of ICSI. Conclusions: ICSI in poor responder women, with normal semen partners, gives the best results about implantation and pregnancy rates in comparison to FIVET

Distribution and biology of lightiella magdalenina (crustacea, cephalocarida)

Lightiella magdalenina is the more recently cephalocarid species described (La Maddalena Archipelago, Sardinia). This first important finding in the Mediterranean sea fills a gap in the distribution of the genus and of the entire class. The aim of the present study is to report some information about distribution and biology of this cephalocarid species. L. magdalenina, like most cephalocarid species, shows a pronounced anamorphic mode of development with a gradual and sequential addition of segment and limbs throughout more of 17 stages of development. It is currently known from a single locality where 55 specimens have been found during more than nine years of sampling. The Type locality is characterised by muddy sand bottom, very rich in organic matter with leaf fragments of Posidonia oceanica; grain size analysis, has underlined that sand is a very fine sand with an organic component of 95%. Zoobenthos was composed of 11 different taxa; Cletopsyllidae and Normanellidae Copepoda are unknown for Italy. A new species of family Cletopsyllidae, Isocletopsyllus sp. nov. has been identified. Up to present, only one species Hutchinsoniella macracantha, have been studied at molecular level. We report the partial sequences of two mitochondrial genes of relevant importance for phylogenetic analysis (cytochrome c oxidase I and cytochrome b) from Lightiella magdalenina. A reduced median network analysis clarified the genetic relationships between the two cephalocarid species

L’Isteroscopia nel percorso diagnostico della coppia infertile: tra falsi miti e realtà

STUDY DESIGN: More than 72 million couple in the world are sterile and over half of them are looking for a cure for infertility. Nowadays the literature available is almost exclusively based on a population that has already started  a MAP path rather than in the early stages of diagnosis. Infertility evaluation and treatment is challenging both physically and psychologically for the couple and often suggesting an hysteroscopic exam affects negatively patients, especially for the incomplete or inadequate information received by the medical staff. RESULTS: We conducted a study on the population of the hysteroscopic office of the Gynecological Obstetrics Clinic of Sassari with the aim of improving information channels. There were 196 subjects between 25 and 45 years. 16% of patients reported lack of information received, but overall we observed a prejudice in almost all subjects about the pain during the examination. In the 41% of the patients, even if with a normal US, we found endometrial, cervical or, myometrial anomalies locally treated. CONCLUSION: Our data, albeit partial, show the technical feasibility and good compliance during the exam. Furthermore we observed that a a good agreement between the report and the histological examination, due to the continuous updating of the endoscopic staff, improve the patients-doctor relationship and the compliance to any treatment