88 research outputs found
Visiting the Museo della Specola in Palermo through Virtual and Augmented Reality
Osservatorio Astronomico di Palermo (OAPa) has recently implemented some ICT solutions to enhance and spread the knowledge of the Museo della Specola and of the archival and book heritage preserved in the ObservatoryPresentiamo una serie di esperimenti legati allâutilizzo delle nuove tecnologie per la comunicazione e allâinnovazioni tecnologica che il Servizio Divulgazione e Didattica e il team beni culturali dellâINAF-Osservatorio Astronomico di Palermo dell'OAPa hanno implementato per valorizzare e diffondere la conoscenza del nostro Museo della Specola e del patrimonio archivi-stico e librario conservato nellâOsservatorio
Effects of Di-Isononyl Phthalate (DiNP) on Follicular Atresia in Zebrafish Ovary
Di-isononyl phthalate (DiNP) is a plasticizer reported to elicit hormone-like activity and disrupt metabolism and reproduction in fish and other vertebrates. In general, phthalates have been used at high concentrations beyond reported environmental levels to assess their adverse effects on fish gonadal physiology. The present study exposed adult female zebrafish to a wide range of DiNP concentrations [0.42 ”g Lâ1 (10â9 M), 4.2 ”g Lâ1 (10â8 M), and 42 ”g Lâ1 (10â7 M)] for 21 days. We evaluated gene expression profiles related to apoptosis, autophagy, and oxidative stress; DNA fragmentation (TUNEL assay: terminal deoxynucleotidyl transferase dUTP nick end labeling) and caspase activity (CAS3) were also examined. Exposure to 0.42 and 4.2 ”g Lâ1 upregulated the genes coding for tnfa and baxa, sod1, prkaa1, respectively. CAS3 immunohistochemistry revealed a higher number of positive vitellogenic oocytes in ovaries exposed to 0.42 ”g Lâ1. Subsequently, we examined the relationship between CAS3 signaling and DNA fragmentation. Accordingly, DNA fragmentation was observed in vitellogenic follicles of fish exposed to 0.42 and 4.2 ÎŒg Lâ1. Our results demonstrate that follicular atresia can occur after exposure to environmental levels of DiNP for 21 days, which may adversely affect the reproductive performance of female zebrafish in a non-monotonic manner.Fil: Godoi, Filipe G. Andrade. UniversitĂ Politecnica dele Marche; Italia. Universidade de Sao Paulo; BrasilFil: Forner Piquer, Isabel. UniversitĂ Politecnica dele Marche; ItaliaFil: Randazzo, Basilio. UniversitĂ Politecnica dele Marche; ItaliaFil: Habibi, Hamid R.. University of Calgary; CanadĂĄFil: Lo Nostro, Fabiana Laura. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de Biodiversidad y BiologĂa Experimental y Aplicada. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Biodiversidad y BiologĂa Experimental y Aplicada; ArgentinaFil: Moreira, Renata GuimarĂŁes. Universidade de Sao Paulo; BrasilFil: Carnevali, Oliana. UniversitĂ Politecnica dele Marche; Italia. Consorzio Interuniversitario di Biosistemi e Biostrutture; Itali
Management of the vaccination campaign in a population of frail older outpatients affected by cognitive or endocrinological conditions: a pilot study in Italy
Vaccination, particularly against pneumococcus and influenza, is a low-cost primary prevention, useful to avoid hard complications, particularly among frail older people. In this pilot study, we aimed to assess the effect of a strategy for influenza and pneumococcal vaccination for outpatients mainly affected by cognitive or endocrinological conditions, evaluating what could stimulate or demotivate vaccination among older people. This study was conducted during the 2023-2024 influenza season at the outpatient clinics in Palermo, Italy. A total 76 patients were included. More than half of the patients could be considered as pre-frail and about 20% frail, according to a comprehensive geriatric evaluation. Among patients, 46.05% received only vaccination against pneumococcus, 28.95% both vaccinations, and 25.0% only against influenza. Compared with the previous seasons, a 19.5% increase of influenza and 90.2% of pneumococcal vaccine uptake was observed. Side effects of vaccination were the main reason of the previous rejection, namely 76.9% for influenza and 53.8% for anti-pneumococcal vaccination. In conclusion, our study indicates how a new vaccination strategy in different settings could be feasible. Proposing influenza and pneumococcal vaccination for frail older outpatients could be an effective instrument to improve immunization coverage that is still low among older people
SARS-CoV-2 RNA and antibody detection in breast milk from a prospective multicentre study in Spain
This study has been supported by a research grant from Fundacion La Marato-TV3 (MilkCORONA, ref 202106).Objectives To develop and validate a specific protocol
for SARS-CoV-
2 detection in breast milk matrix and to
determine the impact of maternal SARS-CoV-
2 infection
on the presence, concentration and persistence of
specific SARS-CoV-
2 antibodies.
Design and patients This is a prospective, multicentre
longitudinal study (AprilâDecember 2020) in 60 mothers
with SARS-CoV-
2 infection and/or who have recovered
from COVID-19. A control group of 13 women before the
pandemic were also included.
Setting Seven health centres from different provinces
in Spain.
Main outcome measures Presence of SARS-CoV-
2
RNA in breast milk, targeting the N1 region of the
nucleocapsid gene and the envelope (E) gene; presence
and levels of SARS-CoV-
2-specific
immunoglobulins
(Igs)âIgA, IgG and IgMâin breast milk samples from
patients with COVID-19.
Results All breast milk samples showed negative
results for presence of SARS-CoV-
2 RNA. We observed
high intraindividual and interindividual variability in
the antibody response to the receptor-binding
domain
of the SARS-CoV-
2 spike protein for each of the three
isotypes IgA, IgM and IgG. Main Protease (MPro)
domain antibodies were also detected in milk. 82.9%
(58 of 70) of milk samples were positive for at least
one of the three antibody isotypes, with 52.9% of these
positive for all three Igs. Positivity rate for IgA was
relatively stable over time (65.2%â87.5%), whereas
it raised continuously for IgG (from 47.8% for the first
10 days to 87.5% from day 41 up to day 206 post-PCR
confirmation).
Conclusions Our study confirms the safety of breast
feeding and highlights the relevance of virus-specific
SARS-CoV-
2 antibody transfer. This study provides crucial
data to support official breastfeeding recommendations
based on scientific evidence.Fundacion La Marato-TV3 20210
SARS-CoV-2 RNA and antibody detection in human milk from a prospective multicenter study in Spain
Objectives To develop and validate a specific protocol for SARS-CoV-2 detection in breast milk matrix and to determine the impact of maternal SARS-CoV-2 infection on the presence, concentration and persistence of specific SARS-CoV-2 antibodies. Design and patients This is a prospective, multicentre longitudinal study (April-December 2020) in 60 mothers with SARS-CoV-2 infection and/or who have recovered from COVID-19. A control group of 13 women before the pandemic were also included. Setting Seven health centres from different provinces in Spain. Main outcome measures Presence of SARS-CoV-2 RNA in breast milk, targeting the N1 region of the nucleocapsid gene and the envelope (E) gene; presence and levels of SARS-CoV-2-specific immunoglobulins (Igs)ÂżIgA, IgG and IgMÂżin breast milk samples from patients with COVID-19. Results All breast milk samples showed negative results for presence of SARS-CoV-2 RNA. We observed high intraindividual and interindividual variability in the antibody response to the receptor-binding domain of the SARS-CoV-2 spike protein for each of the three isotypes IgA, IgM and IgG. Main Protease (MPro) domain antibodies were also detected in milk. 82.9% (58 of 70) of milk samples were positive for at least one of the three antibody isotypes, with 52.9% of these positive for all three Igs. Positivity rate for IgA was relatively stable over time (65.2%-87.5%), whereas it raised continuously for IgG (from 47.8% for the first 10 days to 87.5% from day 41 up to day 206 post-PCR confirmation). Conclusions Our study confirms the safety of breast feeding and highlights the relevance of virus-specific SARS-CoV-2 antibody transfer. This study provides crucial data to support official breastfeeding recommendations based on scientific evidence
Il Fenomeno delle Dipendenze nella Provincia di Varese. Anno 2010
Report on the state of legal and illegal substances use in the territory of the Local Healthcare Service VareseIl Report analizza il fenomeno delle dipendenze nella ASL di Varese. La descrizione del fenomeno si sviluppa intorno all\u27analisi degli indicatori individuati dall\u27Osservatorio Europeo delle Dipendenze di Lisbona (OEDT): 1-uso di sostanze nella popolazione generale (questo indicatore va a rilevare i comportamenti nei confronti di alcol e sostanze psicoattive da parte della popolazione generale); 2-prevalenza d\u27uso problematico delle sostanze psicoattive; 3-domanda di trattamento degli utilizzatori di sostanze; 4-mortalit? degli utilizzatori di sostanze; 5-malattie infettive. Altri due importanti indicatori che si stanno sviluppando, e che vengono qui illustrati, sono l\u27analisi delle Schede di Dimissione Ospedaliera (SDO) e gli indicatori relativi alle conseguenza sociali dell\u27uso di droghe (criminalit? droga correlata). Inoltre sono state applicate diverse metodologie standard di stima sia per quantificare la quota parte sconosciuta di utilizzatori di sostanze che non afferiscono ai servizi, sia per identificarne alcune caratteristiche
"Il Fenomeno delle Dipendenze nella Provincia di Varese. Anno 2009."
Report on the state of legal and illegal substances use in the territory of Varese Province.Il Report analizza il fenomeno delle dipendenze nella provincia di Varese. La descrizione del fenomeno si sviluppa intorno all\u27analisi degli indicatori individuati dall\u27Osservatorio Europeo delle Dipendenze di Lisbona (OEDT): 1-uso di sostanze nella popolazione generale (questo indicatore va a rilevare i comportamenti nei confronti di alcol e sostanze psicoattive da parte della popolazione generale); 2-prevalenza d\u27uso problematico delle sostanze psicoattive; 3-domanda di trattamento degli utilizzatori di sostanze; 4-mortalit? degli utilizzatori di sostanze; 5-malattie infettive. Altri due importanti indicatori che si stanno sviluppando, e che vengono qui illustrati, sono l\u27analisi delle Schede di Dimissione Ospedaliera (SDO) e gli indicatori relativi alle conseguenza sociali dell\u27uso di droghe (criminalit? droga correlata). Inoltre sono state applicate diverse metodologie standard di stima sia per quantificare la quota parte sconosciuta di utilizzatori di sostanze che non afferiscono ai servizi, sia per identificarne alcune caratteristiche
CrkL directs ASAP1 to peripheral focal adhesions
Searching for proteins in platelets that can interact with the N-terminal SH3 domain of CrkL (using a combination of a pull-down assay followed by mass spectrometry), we have found that human platelets express an ADP-ribosylation factor (Arf)-specific GTPase-activating protein (GAP), ASAP1, as a CrkL-binding protein. In spreading platelets, most endogenous ASAP1 is localized at peripheral focal adhesions. To determine the physiologic significance of the CrkL-ASAP1 association, we overexpressed CrkL, ASAP1, or both in combination in COS7 cells. Unlike endogenous ASAP1 in platelets, overexpressed ASAP1 showed diffuse cytoplasmic distribution. However, when co-expressed with wild-type CrkL, both endogenous and expressed ASAP1 accumulated at CrkL-induced focal adhesions. An SH2-mutated CrkL, which cannot localize at focal adhesions, failed to recruit ASAP1 into focal adhesions. Thus, CrkL appears to be a lynchpin between ASAP1 and peripheral focal adhesions
The sound of geological targets on Mars from the absolute intensity of laser-induced sparks shock waves
Inspection of geological material is one of the main goals of the Perseverance rover during its journey across the landscape of the Jezero crater in Mars. NASA's rover integrates SuperCam, an instrument capable of performing standoff characterization of samples using a variety of techniques. Among those tools, SuperCam can perform laser-induced breakdown spectroscopy (LIBS) studies to elucidate the chemical composition of the targets of interest. Data from optical spectroscopy can be supplemented by simultaneously-produced laser-produced plasma acoustics in order to expand the information acquired from the probed rocks thanks to the SuperCam's microphone (MIC) as it can be synchronized with the LIBS laser. Herein, we report cover results from LIBS and MIC during Perseverance's first 380 sols on the Martian surface. We study the correlation between both recorded signals, considering the main intrasample and environmental sources of variation for each technique, to understand their behavior and how they can be interpreted together towards complimenting LIBS with acoustics. We find that louder and more stable acoustic signals are recorded from rock with compact surfaces, i.e., low presence loose particulate material, and harder mineral phases in their composition. Reported results constitute the first description of the evolution of the intensity in the time domain of shockwaves from laser-produced plasmas on geological targets recorded in Mars. These signals are expected contain physicochemical signatures pertaining to the inspected sampling positions. As the dependence of the acoustic signal recorded on the sample composition, provided by LIBS, is unveiled, the sound from sparks become a powerful tool for the identification of mineral phases with similar optical emission spectra.Many people helped with this project in addition to the co-authors, including hardware and operation teams, and we are most grateful for their support. This project was supported in the USA by NASAâs Mars Exploration Program and in France is conducted under the authority of CNES. Research funded by projects UMA18-FEDERJA-272 from Junta de AndalucĂa and PID2020-119185GB-I00 from Ministerio de Ciencia e Innovacion, of Spain. P.P. is grateful to the European Unionâs Next Generation EU (NGEU) plan and the Spanish Ministerio de Universidades for his Margarita Salas fellowship under the program âČâČAyudas para la Recualificacion del Sistema Universitario EspañolâČâČ. RCW was funded by JPL contract 1681089. A.U was funded by NASA Mars 2020 Participating Scientist program 80NSSC21K0330.
Funding for open access charge: Universidad de MĂĄlaga / CBU
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