Efectos de la erupción del Complejo Volcánico Puyehue-Cordón Caulle (CVPCC) sobre la salud humana y el medio ambiente en distintos sectores de la localidad de Villa la Angostura, Neuquén

Fil: Canafoglia, María Elena. Centro de Química Inorgánica (CEQUINOR). Facultad de Ciencias Exactas. Universidad Nacional de La Plata; ArgentinaFil: Vasallo, Marta. Centro de Enseñanza Media Nro 17 (CPEM Nro 17). Villa La Angostura. Neuquén; ArgentinaFil: Barone, Vicente. Centro de Química Inorgánica (CEQUINOR). Facultad de Ciencias Exactas. Universidad Nacional de La Plata; ArgentinaFil: Botto, Irma Lia. CEQUINOR. Facultad de Ciencias Exactas. Universidad Nacional de La Plata. La Plata; Argentin

Pottery production during "romanization" of Sicily: an archaeometric study of plain table-ware classes from ancient Akrai (Sicily)

In this paper, petrographic, mineralogical and chemical analyses have been performed on plain table-ware fragments discovered in the ancient town of Akrai (modern Palazzolo Acreide, Syracuse, Sicily) and dated between the Hellenistic and the Late Roman periods (4th-5th/6thcentury A.D.). The project is developed in the context of the archeological debate on the cultural and political process occurred in Sicily since the 3rd century B.C. and known in archaeological literature as Romanization. In this framework, a gradually substitution of Greek-Hellenistic materials with the Roman ones has occurred in Sicilian colonies and the city of Akrai was deepened involved in this process. As the sensitiveness of material culture to cultural and social changes, the archaeometric investigation has been focused on provenance and technological manufacture aspects of table-ware production, in order to delineate the eventually changes took place in the area during the investigated period. The comparison of obtained data with numerous references local groups of ceramics allows to identify different highly specialized local productions, drawing-back the commercial movements of potteries in Sicily during Roman Age

Structural and Spectroscopic Behavior of double Metal Oxalates from the first transition Metal Series

A series of double metal oxalates of stoichiometry MM´(C2O4)2.4H2O (with MM´= MnCo, MnNi, MnZn, CoNi, CoCu, CoZn, NiCu, NiZn and CuZn have been prepared and characterized. Their structural behavior was investigated by means of X-ray powder diffractometry, showing a strong structural analogy to the orthorhombic, so-called beta-modification, of the related simple oxalato complexes of composition MC2O4.2H2O. The vibrational spectroscopic behavior of the double metal oxalates was investigated by infrared and Raman spectroscopy. The results clearly confirmed the close structural analogies between the MM´(C2O4)2.4H2O, alfa-MC2O4.2H2O and beta-MC2O4.2H2O series of complexes.Fil: D’Antonio, María C.. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; ArgentinaFil: Torres, María Marta. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; ArgentinaFil: Palacios, Daniel Alejandro. Universidad Nacional de la Patagonia Austral. Unidad Académica Río Gallegos; ArgentinaFil: Gonzalez Baro, Ana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaFil: Barone, Vicente Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaFil: Baran, Enrique José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentin

Effects of the Puyehue Cordon Caulle Volcanic Complex (PCCVC) eruption on the health and the environment in different zones of Villa La Angostura, Neuquén

El trabajo aborda la problemática ambiental de una zona de riesgo volcánico localizada al sur del paralelo 33°, focalizando la atención en el estudio de cenizas de caída reciente o removilizadas por el viento, cinco meses después del inicio de la erupción del Complejo Volcánico Puyehue-Cordón Caulle (CVPCC) en junio de 2011. El muestreo se realizó en tres zonas de Villa La Angostura situada a 40 Km al E del foco emisor: (Laguna Piré, Tres Cerros y Escuela CPEM N°17). Considerando los efectos socio-económico-sanitarios de la caída de cenizas en dicha comunidad se ha encarado el estudio de la caracterización físico química de la fracción mas fina del material volcánico (100-5μm). El trabajo, realizado conjuntamente con docentes de la CPEM N°17, se ha efectuado mediante la aplicación de diversas técnicas como difracción por rayos X (DRX), microscopia electrónica (SEM) y análisis químico por microsonda (EDS-EDAX). Los resultados de DRX indican que en general la fracción fina es prácticamente amorfa y procede de un proceso de fragmentación de material pumíceo. Sin embargo, eventualmente se observan algunas líneas de difracción de fases silíceas, particularmente plagioclasa. La morfología del material fino, de composición riolítica (relación SiO2/Al2O3 del orden de 5), se caracteriza por la presencia de bordes agudos y fractura concoide. Presenta contenidos menores en hierro, alcalinos y alcalino-térreos. Se han realizado ensayos químicos adicionales a fin de analizar la alteración del material y su relación con los efectos de corrosión observados en la zona. El conocimiento del material en contacto con la población así como la continuidad en la emisión de particulado fino y la re-movilización del mismo por los vientos, es de vital importancia en lo que se refiere a las acciones de prevención y mitigación de problemas vinculados a la salud y al cuidado del medio ambiente.The environmental problem of a volcanic hazard area located 33° south is considered in this communication. Ash fall and re-mobilized volcanic material five months after Puyehue-Cordón Caulle Volcanic complex eruption (June 2011) are analyzed in three zones in Villa La Angostura (Laguna Piré, Tres Cerros and CPEM N°17 School). On the basis of socio-economic and health problems associated to ash fall and wind effects, the physico-chemical characterization of the finest fraction of volcanic material (100-5μm) was carried out. The work, jointly conducted with teachers from CPEM Nº17 School, was made by applying techniques such as X- ray diffraction (XRD), electron microscopy (SEM) and chemical analysis using the electron microprobe (EDS-EDAX). X-ray diffraction results indicate that the finest fraction is poorly crystalline and probably formed through a fragmentation process of pumiceous materials. However, more intense diffraction lines of silica phases (particularly, plagioclase) were observed. Fine material had a rhyolitic composition (SiO2/ Al2O3 ratio around 5) showing a morphology characterized by sharp edges and vitreous fracture. Content of iron, alkaline and alkaline-earth was low. Additional tests were carried out to analyze the alteration of primary minerals and the corrosion effects observed in the area. Knowing the volcanic material in contact with the local population for a long time as well as its re-mobilization by wind effect is of vital importance for the prevention and mitigation of problems related to health and the environment in a region of high volcanic risk.Fil: Canafoglia, Maria Elena. Universidad Nacional de La Plata; ArgentinaFil: Vassallo, Marta. Centro de Enseñanza Media N°17; ArgentinaFil: Barone, Vicente. Universidad Nacional de La Plata; ArgentinaFil: Botto, Irma Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentin

Effects of the Puyehue Cordon Caulle Volcanic Complex (PCCVC) eruption on the health and the environment in different zones of Villa La Angostura, Neuquén

El trabajo aborda la problemática ambiental de una zona de riesgo volcánico localizada al sur del paralelo 33°, focalizando la atención en el estudio de cenizas de caída reciente o removilizadas por el viento, cinco meses después del inicio de la erupción del Complejo Volcánico Puyehue-Cordón Caulle (CVPCC) en junio de 2011. El muestreo se realizó en tres zonas de Villa La Angostura situada a 40 Km al E del foco emisor: (Laguna Piré, Tres Cerros y Escuela CPEM N°17). Considerando los efectos socio-económico-sanitarios de la caída de cenizas en dicha comunidad se ha encarado el estudio de la caracterización físico química de la fracción mas fina del material volcánico (100-5?m). El trabajo, realizado conjuntamente con docentes de la CPEM N°17, se ha efectuado mediante la aplicación de diversas técnicas como difracción por rayos X (DRX), microscopia electrónica (SEM) y análisis químico por microsonda (EDS-EDAX). Los resultados de DRX indican que en general la fracción fina es prácticamente amorfa y procede de un proceso de fragmentación de material pumíceo. Sin embargo, eventualmente se observan algunas líneas de difracción de fases silíceas, particularmente plagioclasa. La morfología del material fino, de composición riolítica (relación SiO2/Al2O3 del orden de 5), se caracteriza por la presencia de bordes agudos y fractura concoide. Presenta contenidos menores en hierro, alcalinos y alcalino-térreos. Se han realizado ensayos químicos adicionales a fin de analizar la alteración del material y su relación con los efectos de corrosión observados en la zona. El conocimiento del material en contacto con la población así como la continuidad en la emisión de particulado fino y la re-movilización del mismo por los vientos, es de vital importancia en lo que se refiere a las acciones de prevención y mitigación de problemas vinculados a la salud y al cuidado del medio ambiente.The environmental problem of a volcanic hazard area located 33° south is considered in this communication. Ash fall and re-mobilized volcanic material five months after Puyehue-Cordón Caulle Volcanic complex eruption (June 2011) are analyzed in three zones in Villa La Angostura (Laguna Piré, Tres Cerros and CPEM N°17 School). On the basis of socio-economic and health problems associated to ash fall and wind effects, the physico-chemical characterization of the finest fraction of volcanic material (100-5μm) was carried out. The work, jointly conducted with teachers from CPEM Nº17 School, was made by applying techniques such as X- ray diffraction (XRD), electron microscopy (SEM) and chemical analysis using the electron microprobe (EDS-EDAX). X-ray diffraction results indicate that the finest fraction is poorly crystalline and probably formed through a fragmentation process of pumiceous materials. However, more intense diffraction lines of silica phases (particularly, plagioclase) were observed. Fine material had a rhyolitic composition (SiO2/ Al2O3 ratio around 5) showing a morphology characterized by sharp edges and vitreous fracture. Content of iron, alkaline and alkaline-earth was low. Additional tests were carried out to analyze the alteration of primary minerals and the corrosion effects observed in the area. Knowing the volcanic material in contact with the local population for a long time as well as its re-mobilization by wind effect is of vital importance for the prevention and mitigation of problems related to health and the environment in a region of high volcanic risk.Comité de Medio Ambient

Residual C-peptide in patients with Type 1 diabetes and multiethnic backgrounds

OBJECTIVE: To evaluate serum C-peptide in 88 patients from a multiethnic population with Type-1 diabetes and variable disease durations. METHOD: Eighty-eight patients with a mean disease duration of 8.1 +7.6 years were included and underwent C-peptide measurement before and after glucagon stimulation. Chi-squared and Mann Whitney U-tests were used to compare the variables between groups (all two-tailed, a = 0.05). Spearmans correlation coefficient was used to test the association between the continuous variables. Logistic regression was used for the multivariate analysis. Twenty-eight (31.8%) individuals had significantly detectable C-peptide levels after stimuli, particularly those with a shorter disease duration (

Location-Based Games as a Contemporary, Original, and Innovative Method of Seniors’ Teaching and Learning

This book is a result of the Location-based games as a contemporary, original, and innovative method of seniors’ teaching and learning [LoGaSET] project, coordinated by Foundation Pro Scientia Publica, financed from the Erasmus Plus KA2 strategic partnership budget (nr 2017-1-PL01-KA204-038869). Dr Ewa Jurczyk-Romanowska (University of Wrocław, Poland) was the scientific coordinator of the project

CD4 T lymphocyte autophagy is upregulated in the salivary glands of primary Sjögren’s syndrome patients and correlates with focus score and disease activity

Background: Primary Sjögren’s syndrome (pSS) is a common chronic autoimmune disease characterized by lymphocytic infiltration of exocrine glands and peripheral lymphocyte perturbation. In the current study, we aimed to investigate the possible pathogenic implication of autophagy in T lymphocytes in patients with pSS. Methods: Thirty consecutive pSS patients were recruited together with 20 patients affected by sicca syndrome a nd/or chronic sialoadenitis and 30 healthy controls. Disease activity and damage were evaluated according to SS disease activity index, EULAR SS disease activity index, and SS disease damage index. T lymphocytes were analyzed for the expression of autophagy-specific markers by biochemical, molecular, and histological assays in peripheral blood and labial gland biopsies. Serum interleukin (IL)-23 and IL-21 levels were quantified by enzyme-linked immunosorbent assay. Results: Our study provides evidence for the first time that autophagy is upregulated in CD4+ T lymphocyte salivary glands from pSS patients. Furthermore, a statistically significant correlation was detected between lymphocyte autophagy levels, disease activity, and damage indexes. We also found a positive correlation between autophagy enhancement and the increased salivary gland expression of IL-21 and IL-23, providing a further link between innate and adaptive immune responses in pSS. Conclusions: These findings suggest that CD4+ T lymphocyte autophagy could play a key role in pSS pathogenesis. Additionally, our data highlight the potential exploitation of T cell autophagy as a biomarker of disease activity and provide new ground to verify the therapeutic implications of autophagy as an innovative drug target in pSS

Disease Severity in Treatment Resistant Schizophrenia Patients Is Mainly Affected by Negative Symptoms, Which Mediate the Effects of Cognitive Dysfunctions and Neurological Soft Signs

This post-hoc study was aimed at assessing whether disease severity was higher in a sample of Treatment Resistant Schizophrenia patients (TRS) compared to schizophrenia patients responsive to antipsychotics (non-TRS). Determinants of disease severity were also investigated in these groups. Eligible patients were screened by standardized diagnostic algorithm to categorize them as TRS or non-TRS. All patients underwent the following assessments: CGI-S; PANSS; DAI; NES; a battery of cognitive tests. Socio-demographic and clinical variables were also recorded. TRS patients exhibited significantly higher disease severity and psychotic symptoms, either as PANSS total score or subscales' scores. A preliminary correlation analysis ruled out clinical and cognitive variables not associated with disease severity in the two groups. Hierarchical linear regression showed that negative symptoms were the clinical variable explaining the highest part of variation in disease severity in TRS, while in non-TRS patients PANSS-General Psychopathology was the variable explaining the highest variation. Mediation analysis showed that negative symptoms mediate the effects of verbal fluency dysfunctions and high-level neurological soft signs (NSS) on TRS' disease severity. These results show that determinants of disease severity sharply differ in TRS and non-TRS patients, and let hypothesize that TRS may stem from cognitive disfunctions and putatively neurodevelopmental aberrations