329 research outputs found

    A taphonomic examination of inhumed and entombed remains in Parma cemeteries, Italy

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    People of different cultures bury their dead in different ways, based on religious beliefs, historical rituals, or public health requirements. In Italy, cremation is still a limited practice compared to entombment and inhumation. Accordingly with the law, a buried body can be moved to the cemetery ossuary only if skeletonized. Generally, complete skeletonization occurs within 40 years following burial, but sometimes the body may mummify, or it may turn into adipocere. Globally, today burial space is limited with cemeteries facing a growing need for both burials and entombments. The present study considered the thanatological, taphonomical, anthropological, microbiological and geochemical examination of 408 human bodies exhumed from grave pits and stone tombs located in two cemeteries in Parma, Italy. Intrinsic and extrinsic factors associated with the process of the decomposition of such bodies were documented in order to identify which factors promote or reduce the time needed for skeletonization. Overall, the aim of this study was to improve the management of the body turnover in cemeteries, providing recommendations for cemetery management and turnover planning, with the goal of avoiding extra costs that may be attributed to the family and the State. The results of this study show that inhumation in burial grounds and soils with a high percentage of sand and gravel promote decomposition and skeletonization, whereas entombments inside stone tombs and the presence of stone slabs on the ground covering burials, aid in the formation of adipocere, slowing down the decomposition process

    Electrostatic versus Resonance Interactions in Photoreceptor Proteins: The Case of Rhodopsin

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    Light sensing in photoreceptor proteins is subtly modulated by the multiple interactions between the chromophoric unit and its binding pocket. Many theoretical and experimental studies have tried to uncover the fundamental origin of these interactions but reached contradictory conclusions as to whether electrostatics, polarization, or intrinsically quantum effects prevail. Here, we select rhodopsin as a prototypical photoreceptor system to reveal the molecular mechanism underlying these interactions and regulating the spectral tuning. Combining a multireference perturbation method and density functional theory with a classical but atomistic and polarizable embedding scheme, we show that accounting for electrostatics only leads to a qualitatively wrong picture, while a responsive environment can successfully capture both the classical and quantum dominant effects. Several residues are found to tune the excitation by both differentially stabilizing ground and excited states and through nonclassical 'inductive resonance' interactions. The results obtained with such a quantum-in-classical model are validated against both experimental data and fully quantum calculations

    A EXECUÇÃO DAS MEDIDAS DE SEGURANÇA E A LEI DA REFORMA PSIQUIÁTRICA NO BRASIL CONTEMPORÂNEO

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    Este estudo tem como objetivo relatar a prática corrente de punir os doentes mentais no Brasil através da imposição de medidas de segurança. Após décadas de demandas por reformas no sistema de internação psiquiátrica no Brasil, a Lei Federal 10.216 foi publicada e, inspirada pelos postulados da Antipsiquiatria, define os direitos e subvenções de proteção para indivíduos com desordens mentais e proíbe a admissão de doentes mentais em asilos. Além disso define o tratamento baseado nos princípios de respeito à dignidade e à autonomia dos usuários do sistema de saúde mental. A partir da discussão realizada pela Criminologia Crítica problematizamos as medidas de segurança, observando como estão até hoje estabelecidas no ordenamento jurídico brasileiro e como se constitui essa lógica estatal que se volta ao considerado louco e infrator. A ideia é, portanto, a de problematizar os conceitos que forjam essa lógica perversa que se volta ao sujeito que não é nem considerado totalmente doente, nem considerado totalmente criminoso, mas um híbrido que mescla categorias do direito e da psiquiatria, ou aquilo que Foucault nominou de “anormais”. O que apontamos, ao final são a viabilidade e a necessidade de serem encontradas alternativas jurídicas afastadas das instituições de punição, seguindo radicalmente as orientações da Lei da Reforma Psiquiátrica. Só assim pensamos ser possível evitarem-se ao máximo os estigmas que o direito penal invariavelmente impõe à sua clientela

    Taxonomic and functional responses of benthic macroinvertebrate communities to hydrological and water quality variations in a heavily regulated river

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    Aquatic macroinvertebrates are frequently used to evaluate river system conditions and restoration project performance. A better understanding of macroinvertebrate community responses to multiple stressors is a primary challenge for river science. In this paper, macroinvertebrate responses to hydrological and water quality variability were studied in the regulated Oglio River (northern Italy). We hypothesized that in regulated rivers the hydrological, rather than the physico-chemical conditions, would affect macroinvertebrate communities and biomonitoring tools (taxonomic metrics and functional indices). Repeated sampling (six times a year) was performed at four sites downstream of four dams in a 30 km river stretch during 2014 and 2015. Data were analysed using a linear mixed effect framework, to take into account random variation due to site and sampling date, and with multivariate analysis to track changes in community structure. A total of 69 families and 134,693 organisms were identified. The investigated metrics were mainly affected by the coefficient of variation of discharge, minimum discharge, ammonium, and temperature. The short-term dynamics of hydrological and physico-chemical variables were generally less important than the overall random effects as drivers of macroinvertebrate-based metrics. However, the relevance of a random effect (site, time, their interaction) differed depending on the biological metrics analysed. Understanding potential differences in response to short term and short stretch conditions would benefit biomonitoring and restoration procedures in both regulated and natural rivers

    Impact on Prehospital Delay of a Stroke Preparedness Campaign: A SW-RCT (Stepped-Wedge Cluster Randomized Controlled Trial)

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    Background and Purpose—Public campaigns to increase stroke preparedness have been tested in different contexts, showing contradictory results. We evaluated the effectiveness of a stroke campaign, designed specifically for the Italian population in reducing prehospital delay. Methods—According to an SW-RCT (Stepped-Wedge Cluster Randomized Controlled Trial) design, the campaign was launched in 4 provinces in the northern part of the region Emilia Romagna at 3-month intervals in randomized sequence. The units of analysis were the patients admitted to hospital, with stroke and transient ischemic attack, over a time period of 15 months, beginning 3 months before the intervention was launched in the first province to allow for baseline data collection. The proportion of early arrivals (within 2 hours of symptom onset) was the primary outcome. Thrombolysis rate and some behavioral end points were the secondary outcomes. Data were analyzed using a fixed-effect model, adjusting for cluster and time trends. Results—We enrolled 1622 patients, 912 exposed and 710 nonexposed to the campaign. The proportion of early access was nonsignificantly lower in exposed patients (354 [38.8%] versus 315 [44.4%]; adjusted odds ratio, 0.81; 95% confidence interval, 0.60–1.08; P=0.15). As for secondary end points, an increase was found for stroke recognition, which approximated but did not reach statistical significance (P=0.07). Conclusions—Our campaign was not effective in reducing prehospital delay. Even if some limitations of the intervention, mainly in terms of duration, are taken into account, our study demonstrates that new communication strategies should be tested before large-scale implementation. Clinical Trial Registration—URL: http://www.clinicaltrials.gov. Unique identifier: NCT01881152

    Soil carbon fractions in rubber trees, pasture, and secondary forest areas.

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    This study quantify the total organic carbon content, light fraction organic matter (LFOM), and soil organic matter fractions (from chemical and physical fractionations) in four different cultivation areas: 1 and 2) rubber tree clonal plantations (FX 3864 and IAN 873); 3) a pasture; and 4) a secondary forest. The research was carried out using soil samples from clonal plantations of eight-year-old rubber trees, located in the coastal plain (Tabuleiros Costeiros) of the state of Rio de Janeiro. The difference in the management of the rubber tree clone area promoted improvements in the soil quality, as it increased the carbon contents of the granulometric fractions, LFOM, and humic substances from the IAN 873 clone area. Both rubber tree areas evaluated presented higher mineral-associated organic carbon levels and humic substances than did the pasture area, reinforcing the reforestation potential of areas with degraded pastures through hevea culture

    Correlações fenotípicas e genotípicas entre componentes para rendimento de grãos de soja no norte fluminense.

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    Serum IgG against Simian Virus 40 antigens are hampered by high levels of sHLA-G in patients affected by inflammatory neurological diseases, as multiple sclerosis

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    Background: Many investigators detected the simian polyomavirus SV40 footprints in human brain tumors and neurologic diseases and recently it has been indicated that SV40 seems to be associated with multiple sclerosis (MS) disease. Interestingly, SV40 interacts with human leukocyte antigen (HLA) class I molecules for cell entry. HLA class I antigens, in particular non-classical HLA-G molecules, characterized by an immune-regulatory function, are involved in MS disease, and the levels of these molecules are modified according with the disease status. Objective: We investigated in serum samples, from Italian patients affected by MS, other inflammatory diseases (OIND), non-inflammatory neurological diseases (NIND) and healthy subjects (HS), SV40-antibody and soluble sHLA-G and the association between SV40-prevalence and sHLA-G levels. Methods: ELISA tests were used for SV40-antibodies detection and sHLA-G quantitation in serum samples. Results: The presence of SV40 antibodies was observed in 6 % of patients affected by MS (N = 4/63), 10 % of OIND (N = 8/77) and 15 % of NIND (N = 9/59), which is suggestive of a lower prevalence in respect to HS (22 %, N = 18/83). MS patients are characterized by higher sHLA-G serum levels (13.9 \ub1 0.9 ng/ml; mean \ub1 St. Error) in comparison with OIND (6.7 \ub1 0.8 ng/ml), NIND (2.9 \ub1 0.4 ng/ml) and HS (2.6 \ub1 0.7 ng/ml) subjects. Interestingly, we observed an inverse correlation between SV40 antibody prevalence and sHLA-G serum levels in MS patients. Conclusion: The data obtained showed a low prevalence of SV40 antibodies in MS patients. These results seems to be due to a generalized status of inability to counteract SV40 infection via antibody production. In particular, we hypothesize that SV40 immune-inhibitory direct effect and the presence of high levels of the immune-inhibitory HLA-G molecules could co-operate in impairing B lymphocyte activation towards SV40 specific peptides
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