Sea-spray deposition in Antarctic coastal and plateau areas from ITASE traverses

AbstractSea-salt markers (Na+, Mg2+ and Cl–) were analyzed in recent snow collected at more than 600 sites located in coastal and central areas of East Antarctica (northern Victoria Land–Dome C–Wilkes Land), in order to understand the effect of site remoteness, transport efficiency and depositional and post-depositional processes on the spatial distribution of the primary marine aerosol. Firn-core, snow-pit and 1m integrated superficial snow samples were collected in the framework of the International Trans-Antarctic Scientific Expeditions (ITASE) project during recent Italian Antarctic Campaigns (1992–2002). The sampling sites were mainly distributed along coast–inland traverses (northern Victoria Land– Dome C) and an east–west transect following the 2100m contour line (Wilkes Land). At each site, the snow ionic composition was determined. Here, we discuss the distribution of sea-spray components (Na+, Mg2+ and Cl–) as a function of distance from the sea, altitude and accumulation rate, in order to discover the pulling-down rate, possible fractionating phenomena and alternative sources moving inland from coastal areas. Sea-spray depositional fluxes decrease as a function of distance from the sea and altitude. A two-order-of-magnitude decrease occurs in the first 200km from the sea, corresponding to about 2000ma.s.l. Correlations of Mg2+ and Cl– with Na+ and trends of Mg2+/Na+ and Cl–/Na+ ratios showed that chloride has other sources than sea spray (HCl) and is affected by post-depositional processes. Accumulation rate higher than 80 kgm–2 a–1 preserves the chloride record in the snow. Sea-spray atmospheric scavenging is dominated by wet deposition in coastal and inland sites

RICKETS AT THE MEDICI COURT OF FLORENCE: THE CASE OF DON FILIPPINO (1577-1582)

Among the children found in the crypt of the Grand Duke Giangastone in S. Lorenzo Basilica (Florence), the skeletal remains of a 5-year-old child still wearing his fine high social status clothing were recovered. This child of the Medici family was identified as Don Filippino (1577-1582), son of the Grand Duke Francesco I (1541-1587) and Giovanna from Austria (1547-1578). The prince showed several pathological deformities of the cranial and post-cranial skeleton, including enlargement of the cranium, thinning of the cranial vault bones (craniotabes), platybasia and marked bending of femora, tibiae and fibulae. Differential diagnosis suggests that Don Filippino was affected by rickets. The occurrence of this metabolic disease related to vitamin D deficiency in a Renaissance high social class individual can be explained by the practice of very prolonged breast-feeding, up until to sunlight. Historical sources describe Don Filippino as frail and sickly, with frequent illnesses and persistent slight fevers, and it can be supposed that the child was frequently confined indoors, especially in the cold season. Integration of osteoarchaeological evidence with historical documentation suggests that bone lesions observed in the skeletal remains of Don Filippino are compatible with a diagnosis of rickets, caused by the custom of prolonged breast-feeding associated with inadequate sunlight exposure two years of age. Maternal milk contains insufficient vitamin D ratios and retarded weaning severely exposes children to a higher risk of developing rickets, especially if dietary habits are combined with inadequate exposure

Nocturnal cough and difficulty breathing during exertion in a young boy: Do not miss the forest for the trees

No abstract avaiable

Atypical presentations of thrombotic thrombocytopenic purpura in middle-aged women with recurrent cerebral macrovascular thrombosis: a case report

N/

Identification and Characterization of a Novel Nuclear Factor of Activated T-cells-1 Isoform Expressed in Mouse Brain

The nuclear factor of activated T-cells (NFAT) family transcription factors play a key role in the control of cytokine gene expression in T-cells. Although initially identified in T-cells, recent data have unveiled unanticipated roles for NFATs in the development, proliferation, and differentiation of other tissues. Here we report the identification, cDNA cloning, and functional characterization of a new isoform of NFAT1 highly expressed in mouse brain. This isoform, which we named NFAT1-D, is identical to NFAT1 throughout the N-terminal regulatory domain and the portion of the Rel domain which includes the minimal region required for specific binding to DNA and interaction with AP-1. The homology stops sharply upstream of the 3'-boundary of the Rel homology domain and is followed by a short unique C-terminal region. NFAT1-D was expressed at high levels in all brain districts and was found as a constitutively active transcription complex. Transfection of a NFAT/luciferase reporter in the neuronal cell line PC12, which also expresses NFAT1-D, showed that these cells expressed a constitutive NFAT activity that was enhanced after nerve growth factor-induced differentiation but was resistant to the immunosuppressant cyclosporin A. NFAT1-D was, however, inducibly activated in a cyclosporin A-sensitive manner when expressed in T-cells, suggesting that the activity of NFAT proteins might be controlled by their specific cellular context

Preoperative rectal cancer staging with phased-array MR

<p>Abstract</p> <p>Background</p> <p>We retrospectively reviewed magnetic resonance (MR) images of 96 patients with diagnosis of rectal cancer to evaluate tumour stage (T stage), involvement of mesorectal fascia (MRF), and nodal metastasis (N stage).</p> <p>Our gold standard was histopathology.</p> <p>Methods</p> <p>All studies were performed with 1.5-T MR system (Symphony; Siemens Medical System, Erlangen, Germany) by using a phased-array coil. Our population was subdivided into two groups: the first one, formed by patients at T1-T2-T3, N0, M0 stage, whose underwent MR before surgery; the second group included patients at Tx N1 M0 and T3-T4 Nx M0 stage, whose underwent preoperative MR before neoadjuvant chemoradiation therapy and again 4-6 wks after the end of the treatment for the re-staging of disease.</p> <p>Our gold standard was histopathology.</p> <p>Results</p> <p>MR showed 81% overall agreement with histological findings for T and N stage prediction; for T stage, this rate increased up to 95% for pts of group I (48/96), while for group II (48/96) it decreased to 75%.</p> <p>Preoperative MR prediction of histologically involved MRF resulted very accurate (sensitivity 100%; specificity 100%) also after chemoradiation (sensitivity 100%; specificity 67%).</p> <p>Conclusions</p> <p>Phased-array MRI was able to clearly estimate the entire mesorectal fat and surrounding pelvic structures resulting the ideal technique for local preoperative rectal cancer staging.</p

Clinical assessment instruments validated for nursing practice in the Italian context: a systematic review of the literature

Aims. With the aim to identify the instruments validated for Italian nursing practice, a systematic review of the literature was undertaken.Results. A total of 101 instruments emerged. The majority (89; 88.1%) were developed in other countries; the remaining (14; 13.9%) were developed and validated in the Ital-ian context. The instruments were developed to measure patient’s problems (63/101; 62.4%), outcomes (27/101; 26.7%), risks (4/101; 4%) and others issues (7/101; 6.9%). The majority of participants involved in the validation processes were younger adults (49; 48.5%), older adults (40; 39.5%), children (4; 4%), adolescents (3; 3%), and children/adolescents (1; 1%). The instruments were structured primarily in the form of questionnaires (61; 60.4%), as a grid for direct observation (27; 26.7%) or in other forms (12; 11.9%). Among the 101 instruments emerged, there were 1 to 7 validation measures documented with on average 3.2 (95% CI 2.86-3.54) for each instrument.Conclusions. Developing validation studies giving priority to those instruments widely adopted in the clinical nursing practice is recommended.  

Communication role on perception and beliefs of EU citizens about science

Este documento presenta un conjunto de recomendaciones basadas en el conocimiento de las consultas públicas de CONCISE. Los puntos se enumeran según los diferentes destinatarios: comunicadores científicos, responsables políticos, científicos y público en general. El principal objetivo de CONCISE es determinar el papel que desempeña la comunicación científica en la formación de creencias, percepciones y conocimientos sobre cuestiones científicas. Para lograr este objetivo, CONCISE llevó a cabo cinco consultas públicas en Lisboa (Portugal), Valencia (España), Vicenza (Italia), Trnava (Eslovaquia) y Lodz (Polonia) con la participación de cerca de 500 ciudadanos. Esto permitió al consorcio recopilar testimonios de diferentes regiones de la UE, proporcionando así a CONCISE información comparable y fiable sobre las percepciones generales de los ciudadanos de la UE sobre los cuatro temas científicos candentes en estudio, a saber, las vacunas, la medicina complementaria y alternativa, el cambio climático y los organismos modificados genéticamente.This policy brief presents a set of recommendations based on the knowledge of CONCISE's public consultations. The points are listed according to the different target: science communicators, policymakers, scientists and general audience. CONCISE’s main objective is to determine the role that science communication plays in shaping beliefs, perceptions and knowledge of scientific issues. To achieve this aim, CONCISE carried out five public consultations in Lisbon (Portugal), Valencia (Spain), Vicenza (Italy), Trnava (Slovakia) and Lodz (Poland) with the participation of near on 500 citizens. This allowed the consortium to gather testimonies from different EU regions, thus providing CONCISE with comparable and reliable information on EU citizens’ general perceptions of the four burning science issues under study, namely, vaccines, complementary and alternative medicine, climate change and genetically modified organisms

El papel que desempeña la comunicación de la ciencia en la opinión de la ciudadanía europea

El documento recoge las recomendaciones políticas recomendadas a partir de los resultados de investigación del proyecto europeo H2020 CONCISE. En este proyecto se llevaron a cabo cinco consultas ciudadanas, en cinco ciudades europeas de España, Italia, Eslovaquia, Portugal y Polinia), en las que participaron alrededor de 100 ciudadanos en cada una de ellas, para hablar sobre ciencia. Concretamente a los ciudadanos se les preguntó cómo se informaban y en qué fuentes o canales confiaban más para informarse de temas como las vacunas, el cambio climático, las medicinas complementarias o alternativas, y los organismos modificados genéticamente. Los debates arrojaron información muy valiosa para el diseño de políticas públicas.H2020 CONCISE G.A. No 824537The document includes the suggested policy brief recommendations based on the European H2020 CONCISE project's research results. In this project, five citizen consultations were carried out in five European cities from Spain, Italy, Slovakia, Portugal and Poland, in which around 100 citizens participated in each of them to talk about science. Specifically, citizens were asked how they were informed and how sources or channels they trusted the most to find out about vaccines, climate change, complementary or alternative medicines, and genetically modified organisms. The debates yielded very valuable information for the design of public policies