Investigating The Physics Case of Running a B-Factory at the Y(5S) Resonance

We discuss the physics case of a high luminosity B-Factory running at the Y(5S) resonance. We show that the coherence of the B meson pairs is preserved at this resonance, and that Bs can be well distinguished from Bd and charged B mesons. These facts allow to cover the physics program of a traditional B-Factory and, at the same time, to perform complementary measurements which are not accessible at the Y(4S). In particular we show how, despite the experimental limitations in performing time-dependent measurements of Bs decays, the same experimental information can be extracted, in several cases, from the determination of time-integrated observables. In addition, a few examples of the potentiality in measuring rare Bs decays are given. Finally, we discuss how the study of Bs meson will improve the constraints on New Physics parameters in the Bs sector, in the context of the generalized Unitarity Triangle analysis.Comment: 47 pages, 22 figure

RICONGIUNTE MA LAVORATRICI. L'ACCESSO AL LAVORO DELLE DONNE MAROCCHINE IN SARDEGNA E TOSCANA.

Lately produced Worldwide literature on gendered global migration has shown a shift in perception from male migrant workers to both first generation migrants and transnational mothers, including East European women. However, Moroccan Women\u2019s case study has been neglected so far. They have been labeled such as \u201chousekeepers\u201d or \u201cCarer\u201d, passive followers of their own husbands, not such as workers, also caged in a family microcosm where they are classified with identitarian roles like Wives, Mothers and Daughters. The research I carried out aims to get an insight on such a wide universe. We tried to understand how Moroccan Women deal with work both in Sardinia and Tuscany (two Italian regions very different in terms of Migration history and migration/work policies), relationship between work and family and the meaning that Moroccan Women give to work. Recent outcomes showed that Moroccan women presence in the local job market is increasing, despite they are still relegated in the last ranks among foreigner workers in Italy. They are mainly domestic workers by the hour because it looks like an accessible job for all those who have not a strong scholarization nor recognized degrees and still difficulties with the local language (\u2026). We should mention also that many women have children and it comes that they have to merge work duties with family duties as well. On the other hand Work turns into a necessity for old Moroccan women in financial troubles and a matter of both emancipation from men and an identity definition process for the young Ones who aim also to create a solid base for a future family. It means a redefinition of roles and duties inside family networks also for all those so called \u201ccircular migrants\u201d who live and work in Italy like seasonal workers. Once they came back home they start to work in order to help their relatives in managing shops that sell \u201cMade in Italy\u201d products. This \u201ccircularity\u201d looks like a successful example of old and new work strategies due to the high rate of unemployment in Morocco and a new way to consider a more equalitarian kind of family. Hence outcomes show that moroccan women's rapresentation in Italy such as passive and scarsely integrated people, subdued by men's will and kept off from the job market by cultural issues that relegate all of them in traditional roles like Wife and mother, is simply outdated. It doesn't take in account an increased women partecipation in the job market neither factors related both to personal/social capital and local society that makes partecipation for women to the job market harder, that because they should be traditionally employed in a domestic space only. On one side mothers still find jobs nearly related to their everyday domestic activities, on the other young women try to find new kind of jobs that could allow them to keep on pursuing their goals (e.g. Studying) and their own identity

On the possible relationship between Kober stem grooving and grapevine virus A

Investigations were carried out to establish possible correlations of two diseases of the rugose wood complex, i.e. Rupestris stem pitting (RSP) and Kober stem grooving (KSG) with grapevine virus A (GVA) and grapevine leafroll associated viruses I (GLRaV I) and III (GLRaV III). To this purpose 84 clonal accessions of different wine grape cultivars were analyzed by ELISA and by indexing onto the indicators Vitis rupestris, Kober 5BB and LN 33. The results obtained clearly indicated that none of the viruses taken into consideration is apparently involved in the etiology of RSP. Conversely, a remarkably close association of GVA with KSG was discovered

Symptom-Level Description of Nursing Perceptions About Unwarranted Clinical Variation, Inequality in Access to Cancer Services, Specific-Symptom Knowledge: An Italian Web-Based Survey

Objectives: This study aimed to describe the cancer nurses’ views regarding the relevance of cancer symptom-specific knowledge, unwarranted clinical variation, and inequities in access to cancer services. Describing how nurses perceive these aspects could help identify research priorities and a practical framework to prioritize clinical practice guidelines. Data Sources: A web-based survey was performed using a convenience sample of 810 nurses employed in cancer settings and cross-sectional data collection. The survey adopted a previously validated questionnaire investigating 14 symptoms. Conclusion: This study revealed which cancer symptoms require priority attention to define evidence-grounded guidance for decreasing unwarranted clinical variation and inequities in access to cancer services. Future multiprofessional and multinational studies are recommended to provide an in-depth description of the investigated phenomena. Implications for Nursing Practice: Participants reported higher mean scores in pain-specific knowledge than other symptoms. Social functioning alterations and psychological disorders seem to be highly susceptible to unwarranted clinical variation and inequities in access to cancer services. This information could drive tailored interventions to improve nursing practice

Inhibition of cell proliferation, migration and invasion of B16-F10 melanoma cells by α-mangostin

In this study, we have evaluated the potential antineoplastic effects of α-mangostin (α-M), the most representative xanthone in Garcinia mangostana pericarp, on melanoma cell lines. This xanthone markedly inhibits the proliferation of high-metastatic B16-F10 melanoma cells. Furthermore, by deeply analyzing which steps in the metastatic process are influenced by xanthone it was observed that α-M strongly interferes with homotypic aggregation, adhesion, plasticity and invasion ability of B16-F10 cells, probably by the observed reduction of metalloproteinase-9 activity. The antiproliferative and antimetastatic properties of α-M have been established in human SK-MEL-28 and A375 melanoma cells. In order to identify pathways potentially involved in the antineoplastic properties of α-M, a comparative mass spectrometry proteomic approach was employed. These findings may improve our understanding of the molecular mechanisms underlying the anti-cancer effects of α-M on melanoma

Emergence of Anaplasma Species Related to A. phagocytophilum and A. platys in Senegal

The genus Anaplasma (Anaplasmataceae, Rickettsiales) includes tick-transmitted bacterial species of importance to both veterinary and human medicine. Apart from the traditionally recognized six Anaplasma species (A. phagocytophilum, A. platys, A. bovis, A. ovis, A. centrale, A. marginale), novel strains and candidate species, also of relevance to veterinary and human medicine, are emerging worldwide. Although species related to the zoonotic A. platys and A. phagocytophilum have been reported in several African and European Mediterranean countries, data on the presence of these species in sub-Saharan countries are still lacking. This manuscript reports the investigation of Anaplasma strains related to zoonotic species in ruminants in Senegal by combining different molecular tests and phylogenetic approaches. The results demonstrated a recent introduction of Candidatus (Ca) Anaplasma turritanum, a species related to the pathogenic A. platys, possibly originating by founder effect. Further, novel undetected strains related to Candidatus (Ca) Anaplasma cinensis were detected in cattle. Based on groEL and gltA molecular comparisons, we propose including these latter strains into the Candidatus (Ca) Anaplasma africanum species. Finally, we also report the emergence of Candidatus (Ca) A. boleense in Senegal. Collectively, results confirm that Anaplasma species diversity is greater than expected and should be further investigated, and that Anaplasma routine diagnostic procedures and epidemiological surveillance should take into account specificity issues raised by the presence of these novel strains, suggesting the use of a One Health approach for the management of Anaplasmataceae in sub-Saharan Africa

Single-hit resolution measurement with MEG II drift chamber prototypes

Drift chambers operated with helium-based gas mixtures represent a common solution for tracking charged particles keeping the material budget in the sensitive volume to a minimum. The drawback of this solution is the worsening of the spatial resolution due to primary ionisation fluctuations, which is a limiting factor for high granularity drift chambers like the MEG II tracker. We report on the measurements performed on three different prototypes of the MEG II drift chamber aimed at determining the achievable single-hit resolution. The prototypes were operated with helium/isobutane gas mixtures and exposed to cosmic rays, electron beams and radioactive sources. Direct measurements of the single hit resolution performed with an external tracker returned a value of 110 $\mu$m, consistent with the values obtained with indirect measurements performed with the other prototypes.Comment: 18 pages, 18 figure

5S-IGS rDNA in wind-pollinated trees (Fagus L.) encapsulates 55 million years of reticulate evolution and hybrid origins of modern species

Standard models of plant speciation assume strictly dichotomous genealogies in which a species, the ancestor, is replaced by two offspring species. The reality in wind‐pollinated trees with long evolutionary histories is more complex: species evolve from other species through isolation when genetic drift exceeds gene flow; lineage mixing can give rise to new species (hybrid taxa such as nothospecies and allopolyploids). The multi‐copy, potentially multi‐locus 5S rDNA is one of few gene regions conserving signal from dichotomous and reticulate evolutionary processes down to the level of intra‐genomic recombination. Therefore, it can provide unique insights into the dynamic speciation processes of lineages that diversified tens of millions of years ago. Here, we provide the first high‐throughput sequencing (HTS) of the 5S intergenic spacers (5S‐IGS) for a lineage of wind‐pollinated subtropical to temperate trees, the Fagus crenata – F. sylvatica s.l. lineage, and its distant relative F. japonica. The observed 4963 unique 5S‐IGS variants reflect a complex history of hybrid origins, lineage sorting, mixing via secondary gene flow, and intra‐genomic competition between two or more paralogous‐homoeologous 5S rDNA lineages. We show that modern species are genetic mosaics and represent a striking case of ongoing reticulate evolution during the past 55 million years