166 research outputs found
PERFIL ALIMENTARIO DE LA COMUNIDAD MBYA GUARANI VIJÚ, DISTRITO DE TAVA'I, DEPARTAMENTO DE CAAZAPÁ
En la comunidad Vijú, del distrito Tava'i, departamento de Caazapá se realizó esta investigación de tipo descriptiva con enfoque cualitativo, no experimental de diseño transversal, con el objetivo de caracterizar el perfil ali-mentario de los Mbya Guarani. Para ello se identificaron las formas de obtención de alimentos, los métodos de cocción y los procesos de elaboración, los alimentos más importantes de la dieta desde la perspectiva Mbya y la descripción de sus hábitos alimentarios por medio de la observación participante, notas de campo, entrevistas abiertas y semiestructuradas. Los datos obtenidos indican que gran parte de sus alimentos provienen de los cultivos, del monte se obtiene carne de animales silvestres, frutos y miel. Los alimentos que complementan la dieta como yerba, arroz, fideo, azúcar, sal, panificados son comprados o recibidos como donación. Los alimentos disponibles en la comunidad fueron relacionados con las Guías Alimentarias del Paraguay permitiendo ubicar a cada alimento dentro de los siete grupos propuestos en las guías. Se elaboró un calendario que muestra el periodo de abundancia de alimentos de noviembre a marzo y el de escasez en octubre Entre los alimentos más importantes el maíz ocupa el primer lugar con él elaboran varias comidas tradicionales como el Mbojape o el Avachí Cuí; le siguen en importancia la mandioca y la batata, el poroto y el maní. Las formas de cocción de las comidas son hervidas, fritas, asadas sobre las brasas del fuego o entre las cenizas. En cuanto a los hábitos alimentarios lo más resaltante fue el periodo de lactancia, que puede llegar hasta los dos o cinco años; du-rante el embarazo el consumo de aceite y grasas es mínimo; y la independencia de los niños a partir de los seis o siete años al momento de buscar sus alimentos y prepararlos. A diario se consume aceite, frutas, yerba, sal y mandioca. Se realizan tres comidas: desayuno, almuerzo y cena
Incorporación de ácidos grasos de cadena media a triglicéridos de aceite de pescado por interesterificación química y enzimática
Structured triglycerides (STs) containing both medium-chain fatty acids (MCFA) and polyunsaturated fatty acids (PUFA) in the same molecule offer nutritional and therapeutic benefits. The aim of this work was to establish the incorporation of MCFA into fish oil triglycerides (TAGs), while maintaining substantial levels of docosahexaenoic and eicosapentaenoic acids. The effects of different acyl donors (capric acid methyl ester/MeC10 or medium chain triglyceride/TCM) and of the catalyst (chemical or enzymatic) on the fatty acid composition of the reaction product were studied. The fatty acid composition of the fish oil TAG was modified after interesterification to contain MCFA, and it depended on the catalyst and on the substrates. Thermograms obtained by Differential Scanning Calorimetry (DSC) showed that interesterification promoted noteworthy changes in the melting profile of the samples. STs of clinical nutrition interest containing both EPA and DHA obtained from fish oil along with MCFA were successfully produced.Triglicéridos estructurados (SL) conteniendo ácidos grasos de cadena media (MCFA) y ácidos grasos poliinsaturados (PUFA) en la misma molécula de glicerol tienen ventajas nutricionales y terapéuticas. Se establece la incorporación de MCFA a los triglicéridos (TAGs) de aceite de pescado, conservando un contenido considerable de ácidos docosahexaenóico (DHA) y eicosapentaenóico (EPA). El efecto de diferentes acil donadores (éster metílico de ácido cáprico/MeC10 o triglicéridos de cadena media/TCM) y de catalizador (químico o enzimático) sobre la composición del producto de las reacciones fue estudiado. La composición de ácidos grasos de los TAGs del aceite de pescado fue modificada después de las reacciones para contener MCFA y dependió del catalizador y de los substratos. Los termogramas obtenidos por Calorimetría Diferencial de Barrido (DSC) indicaron que la interesterificación provocó alteraciones considerables de los perfiles de fusión de las muestras. Fueron producidos STs de interés en nutrición clínica conteniendo EPA y DHA, además de MCFA
Torn between two targets: German police officers talk about the use of force
Considering earlier research into police use of force as well as the judicial and practical frame of police work in Germany, the article presents the results of an empirical study on the individual and collective legitimization of the use of force by German police officers. There are numerous justifications for the use of force expressed by focus group participants in eight German Federal States who were responding to a hypothesized scenario. In the discussions observed within the groups, reference is first made to the state’s duty to prosecute alleged offences and the measures or formal actions to do this—hence, the legal authority to use force. In the course of the discussions, however, it became obvious that illegal violence may occur, although it was not perceived as such by the officers. Overall, and after an intensive analysis of the focus group discussions, it can be stated that use of force (whether legal or not) depends on the police officer’s perception of the resistance of the person being engaged with. In this regard, different social–cultural or physical–material factors can be identified. They have different influences on the individual legitimization of police actions, intertwined with the perception of the situation as constructed by the officer. Three ways of perceiving the situation can be deduced, resulting in different patterns of justification for the use of force
Researching the use of force: The background to the international project
This article provides the background to an international project on use of force by the police that was carried out in eight countries. Force is often considered to be the defining characteristic of policing and much research has been conducted on the determinants, prevalence and control of the use of force, particularly in the United States. However, little work has looked at police officers’ own views on the use of force, in particular the way in which they justify it. Using a hypothetical encounter developed for this project, researchers in each country conducted focus groups with police officers in which they were encouraged to talk about the use of force. The results show interesting similarities and differences across countries and demonstrate the value of using this kind of research focus and methodology
Risk prediction of major cardiac adverse events and all-cause death following covid-19 hospitalization at one year follow-up: The HOPE-2 score
Background: Long -term consequences of COVID-19 are still partly known. Aim of the study: To derive a clinical score for risk prediction of long-term major cardiac adverse events (MACE) and all cause death in COVID-19 hospitalized patients. Methods: 2573 consecutive patients were enrolled in a multicenter, international registry (HOPE-2) from January 2020 to April 2021 and identified as the derivation cohort. Five hundred and twenty-six patients from the CardioCovid-Italy registry were considered as external validation cohort. A long-term prognostic risk score for MACE and all cause death was derived from a multivariable regression model. Results: Out of 2573 patients enrolled in the HOPE-2 registry, 1481 (58 %) were male, with mean age of 60 +/- 16 years. At long-term follow-up, the overall rate of patients affected by MACE and/or all cause death was 7.8 %. After multivariable regression analysis, independent predictors of MACE and all cause death were identified. The HOPE-2 prognostic score was therefore calculated by giving: 1 -4 points for age class ( = 85), 3 points for history of cardiovascular disease, 1 point for hypertension, 3 points for increased troponin serum levels at admission and 2 points for acute renal failure during hospitalization. Score accuracy at ROC curve analysis was 0.79 (0.74 at external validation). Stratification into 3 risk groups ( 6 points) classified patients into low, intermediate and high risk. The observed MACE and all-cause death rates were 1.9 %, 9.4 % and 26.3 % for low- intermediate and high-risk patients, respectively (Log-rank test p < 0.01). Conclusions: The HOPE-2 prognostic score may be useful for long-term risk stratification in patients with previous COVID-19 hospitalization. High-risk patients may require a strict follow-up
Validation and test-retest repeatability performance of parametric methods for [11C]UCB-J PET
[(11)C]UCB-J is a PET radioligand that binds to the presynaptic vesicle glycoprotein 2A. Therefore, [(11)C]UCB-J PET may serve as an in vivo marker of synaptic integrity. The main objective of this study was to evaluate the quantitative accuracy and the 28-day test–retest repeatability (TRT) of various parametric quantitative methods for dynamic [(11)C]UCB-J studies in Alzheimer’s disease (AD) patients and healthy controls (HC). Eight HCs and seven AD patients underwent two 60-min dynamic [(11)C]UCB-J PET scans with arterial sampling over a 28-day interval. Several plasma-input based and reference-region based parametric methods were used to generate parametric images using metabolite corrected plasma activity as input function or white matter semi-ovale as reference region. Different parametric outcomes were compared regionally with corresponding non-linear regression (NLR) estimates. Furthermore, the 28-day TRT was assessed for all parametric methods. Spectral analysis (SA) and Logan graphical analysis showed high correlations with NLR estimates. Receptor parametric mapping (RPM) and simplified reference tissue model 2 (SRTM2) BP(ND), and reference Logan (RLogan) distribution volume ratio (DVR) regional estimates correlated well with plasma-input derived DVR and SRTM BP(ND). Among the multilinear reference tissue model (MRTM) methods, MRTM1 had the best correspondence with DVR and SRTM BP(ND). Among the parametric methods evaluated, spectral analysis (SA) and SRTM2 were the best plasma-input and reference tissue methods, respectively, to obtain quantitatively accurate and repeatable parametric images for dynamic [(11)C]UCB-J PET. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13550-021-00874-8
‘The only game in town?’: football match-fixing in Greece
The final publication is available at Springer via http://dx.doi.org/10.1007/s12117-014-9239-3Football match-fixing in Greece has a relatively long history, however, from the late 1990s it has been considered as a serious problem for the sport in the country. Despite the history of the phenomenon in the country, Greece has only relatively recently been identified as one of the hotspots for football match-fixing on an international level. Following the recent scandal exposure of fixed matches in Greece in 2011, also known as Koriopolis (a pun name on the Italian scandal Calciopolis and the Greek word ‘korios’ or phone-tap), detailed information about numerous matches played in the 2008/09, 2009/10 and 2010/11 seasons that attracted UEFA’s attention were brought into the public eye. Soon after, legal action was taken against individuals involved in the process, with a number of club officials facing lifelong bans from any footballrelated activity, and football clubs either relegated or excluded from European competitions and the Super League itself for their involvement in the scandal. In May 2013, the number of people facing charges exceeded 200, with some of them having already been imprisoned for their involvement in the scandal. Following the aforementioned scandal exposure, a vast amount of information regarding football match-fixing was made available to the public. The aim of the current article is to provide an account of the social organisation of football match-fixing in Greece. Our account is based on three main sources of data: the telephone conversations that were the result of wiretapping by the National Intelligence Agency in relation to the latest football match-fixing scandal (of 2011), published media sources, and interviews with informed actors from the realm of Greek football
Incorporation of medium chain fatty acids into fish oil triglycerides by chemical and enzymatic interesterification
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