288 research outputs found

    Measuring media literacy: The Development of the Medienprofis-Test in Switzerland

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    Trotz intensiver theoretischer Diskussionen ĂŒber den Begriff Medienkompetenz liegen bis anhin kaum empirisch validierte Messinstrumente zur empirischen Erfassung dieser Kompetenzen bei Kindern und Jugendlichen vor. Die bestehenden Angebote lassen sich in drei Typen gliedern: 1) Kommerzielle PrĂŒfungen im Kontext von Weiterbildungsangeboten, 2) wissenschaftliche Tests im Kontext empirischer Studien sowie 3) spielerische Tests und Quizzes im Kontext von Sensibilisierungskampagnen. AusgewĂ€hlte Angebote werden vorgestellt und in Bezug auf ihre Brauchbarkeit fĂŒr praktische Medienarbeit diskutiert. Als ErgĂ€nzung und Erweiterung des bestehenden Angebots wird der schweizerische Medienprofis-Test vorgestellt. Dabei handelt es sich um einen spielerischen Test, der frei zugĂ€nglich und empirisch validiert ist. Der Test umfasst fĂŒnf Themenbereiche: 1. Digitalisierung und Computerisierung, 2. Informationsfreiheit und GlaubwĂŒrdigkeit, 3. Sex, Gewalt und Jugendschutz, 4. Neue GeschĂ€ftsmodelle und Kommerz sowie 5. Personalisierung und Datenschutz. Die abgefragten Kompetenzen orientieren sich darĂŒber hinaus am Modullehrplan «Medien & Informatik» des neuen deutschschweizerischen Lehrplans 21. Die von Experten validierten Items wurden anhand einer Stichprobe von SchĂŒlerinnen und SchĂŒlern der 3. bis 8. Klassen erprobt und mittels Raschmodell skaliert. Lehrpersonen können den Test im Klassenverband durchfĂŒhren und erhalten dabei neben aggregierten Ergebnissen auch Empfehlungen fĂŒr passende Unterrichtsmaterialien. Der Medienprofis-Test ist ein erster Schritt, ein standardisiertes und validiertes Messinstrument zur VerfĂŒgung zu stellen und die Diskussion um die AusprĂ€gungen der Medienkompetenz mit empirisch Daten zu bereichern.Despite intensive theoretical discussions regarding the concept of media literacy, so far no empirically validated measuring instruments have been developed to determine this competence among children and adolescents. Existing offers can be categorized into three types: 1) commercial tests in the context of further education and training, 2) scientific tests in the context of empirical studies, and 3) playful tests and quizzes in the context of awareness campaigns. We present selected products and discuss them with reference to their suitability for practical media work. The Swiss Medienprofis-Test is introduced as an addition and extension to existing products. This is a playful test, which is freely available and empirically validated. It encompasses five subject areas: 1. digitalization and computerisation, 2. freedom of information and credibility, 3. sex, violence and youth protection, 4. new business models and commerce and 5. personalisation and privacy protection. The tested literacies are structured parallel to the school subject â€čmedia & computer scienceâ€ș from the new Swiss-German curriculum, Lehrplan 21. The test items which were validated by experts, were tested using a random sample of students from 3rd to 8th grade and were scaled according to the Rasch model. Teachers can conduct the test in school classes and receive aggregated feedback as well as suggestions for suitable teaching materials. The Medienprofis-Test is a first step towards providing a standardized and validated measuring instrument and enhancing the discussion regarding the definition of media literacy with empirical data

    EU Kids Online: Svizzera. Bambini e giovani svizzeri in Internet: rischi e opportunitĂ . Estratto dei risultati

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    Per lo studio «EU Kids Online: Svizzera» sono state intervistate 67 classi nella Svizzera tedesca e in quella francese, per un totale di 1026 allievi di etĂ  compresa tra i 9 e i 16 anni, in merito al loro utilizzo di Internet e ai rischi cui sono stati confrontati. Al contempo, sono stati intervistati anche i 67 insegnanti di questi allievi, per quanto concerne l’insegnamento di temi riguardanti i media

    What kinds of personal data do primary school pupils share with whom? Children’s view of personal data and its implications for teaching about privacy

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    Safeguarding personal digital data is crucial and requires appropriate training. However, privacy remains a novel topic, leaving teachers with limited guidance. This study investigates how elementary school students perceive personal data and assesses pre-service teachers’ accuracy in predicting children’s responses. Employing Nissenbaum’s contextual integrity framework, the outcomes of this research offer a nuanced perspective on privacy, considering different recipients and data types. The study surveyed 94 Grade 3 and Grade 5 students, asking them to indicate with which recipients (no one, parents, best friends, class, all other people) they would share specific information. In addition, 75 pre-service teachers were asked to indicate what they expected Grade 5 children would share with whom. The findings show: 1. what information Grade 3 and Grade 5 students consider to be most private, 2. which recipients they trust the most, 3. varying sharing practices between Grade 3 and 5, and 4. a tendency for pre-service teachers to underestimate children’s privacy sharing behavior. In the discussion section we propose five recommendations for enhancing digital privacy education

    Intervention in the radiotherapy sector of a public hospital: point of view at the quality of the environment

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    During the social isolation imposed by the pandemic caused by the COVID-19 virus, a group of students from the Interior Design course at the UFRJ School of Fine Arts was invited to carry out an intervention in the radiotherapy sector of the University Hospital Clementino Fraga Filho (HUCFF). Making use of inquiry techniques, supported by extensive theoretical research, and guided by the principles of ergonomics of the built environment and perceived visual quality, the students conceived a new interior project for that sector. In order to carry out the conceptual and graphic part, we adopted our own interior design methods, where we sought to meet requirements that go beyond the physical and accessibility aspects (also treated), to promote, through a systemic approach, a safe environment, effective and that provides well-being.Durante o isolamento social imposto pela pandemia causada pelo vĂ­rus da COVID-19, um grupo de estudantes do curso de Design de Interiores da Escola de Belas Artes da UFRJ foi convidado a realizar uma intervenção no setor de radioterapia do Hospital UniversitĂĄrio Clementino Fraga Filho (HUCFF). Fazendo uso de tĂ©cnicas de inquirição, apoiados por extensa pesquisa teĂłrica, e ainda, orientados pelos princĂ­pios da ergonomia do ambiente construĂ­do e a qualidade visual percebida, os estudantes conceberam um novo projeto de interiores para Ă quele setor. Para realização da parte conceitual e grĂĄfica foi adotado mĂ©todos prĂłprios de projeto em interiores, onde buscou-se atender requisitos que vĂŁo para alĂ©m dos aspectos fĂ­sicos e de acessibilidade (tambĂ©m tratados), no sentido de promover atravĂ©s de uma abordagem sistĂȘmica, um ambiente seguro, eficaz e que proporcione bem-estar

    Antioxidant PLA Composites Containing Lignin for 3D Printing Applications: A Potential Material for Healthcare Applications

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    Lignin (LIG) is a natural biopolymer with well-known antioxidant capabilities. Accordingly, in the present work, a method to combine LIG with poly(lactic acid) (PLA) for fused filament fabrication applications (FFF) is proposed. For this purpose, PLA pellets were successfully coated with LIG powder and a biocompatible oil (castor oil). The resulting pellets were placed into an extruder at 200 °C. The resulting PLA filaments contained LIG loadings ranging from 0% to 3% (w/w). The obtained filaments were successfully used for FFF applications. The LIG content affected the mechanical and surface properties of the overall material. The inclusion of LIG yielded materials with lower resistance to fracture and higher wettabilities. Moreover, the resulting 3D printed materials showed antioxidant capabilities. By using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, the materials were capable of reducing the concentration of this compound up to ca. 80% in 5 h. This radical scavenging activity could be potentially beneficial for healthcare applications, especially for wound care. Accordingly, PLA/LIG were used to design meshes with different designs for wound dressing purposes. A wound healing model compound, curcumin (CUR), was applied in the surface of the mesh and its diffusion was studied. It was observed that the dimensions of the meshes affected the permeation rate of CUR. Accordingly, the design of the mesh could be modified according to the patient’s needsThis work was supported by the Wellcome Trust Biomedical Vacation Scholarship (SS 213361/Z/18/Z) and the Society for Applied Microbiology Student Placement ScholarshipS

    Tailoring block copolymer nanoporous thin films with acetic acid as a small guest molecule

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    Block copolymers offer the fabrication of mesoporous thin films with distinct nanoscale structural features. In this contribution, we present the use of acetic acid (CH3COOH) as a low‐molecular‐weight guest molecule to tune the supramolecular assembly of poly[styrene‐block‐(4‐vinylpyridine)] (PS‐b‐P4VP), offering a versatile and straightforward method to obtain tailored nanostructured films with controlled topography and pore size. Spin‐coating toluene solutions of PS‐b‐P4VP, with a variable amount of CH3COOH, leads to micellar thin films, where the micelles contain the carboxylic acid as a guest molecule. The size can be conveniently modified in these films (from 48 to 75 nm) by varying the amount of organic acid in the starting solutions. Subsequent surface reconstruction of micellar films using ethanol leads to ring‐shaped copolymer nanoporous films with modulated diameter. Controlling the micelle reconstruction process, cylindrical porous films are also obtained. Interestingly, changing the type of aliphatic carboxylic acid leads to a modification of the observed film morphology from micelles to out‐of‐plane P4VP cylinders (or lamellae) in a PS matrix

    Aberrant RET expression impacts on normal mammary gland post-lactation transition enhancing cancer potential

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    RET is a receptor tyrosine kinase with oncogenic potential in the mammary epithelium. Several receptors with oncogenic activity in the breast are known to participate in specific developmental stages. We found that RET is differentially expressed during mouse mammary gland development: RET is present in lactation and its expression dramatically decreases in involution, the period during which the lactating gland returns to a quiescent state after weaning. Based on epidemiological and pre-clinical findings, involution has been described as tumor promoting. Using the Ret/MTB doxycycline-inducible mouse transgenic system we show that sustained expression of RET in the mammary epithelium during the post-lactation transition to involution is accompanied by alterations in tissue remodeling and an enhancement of cancer potential. Following constitutive Ret expression we observed a significant increase in neoplastic lesions in the post-involuting versus the virgin mammary gland. Furthermore, we show that abnormal RET overexpression during lactation promotes factors that prime involution, including premature activation of Stat3 signaling and, using RNA-seq, an acute-phase inflammatory signature. Our results demonstrate that RET overexpression negatively affects the normal post-lactation transition.Fil: Vallone, Sabrina Aldana. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias; ArgentinaFil: Garcia Sola, Martin Emilio. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias; ArgentinaFil: Schere Levy, Carolina Paula. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias; ArgentinaFil: Meiss, Roberto P.. Academia Nacional de Medicina de Buenos Aires; ArgentinaFil: Hermida, Gladys NoemĂ­. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Chodosh, Lewis A.. University of Pennsylvania; Estados UnidosFil: Kordon, Edith Claudia. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias; ArgentinaFil: Hynes, Nancy E.. Friedrich Miescher Institute For Biomedical Research; SuizaFil: Gattelli, Albana. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Oficina de CoordinaciĂłn Administrativa Ciudad Universitaria. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de FisiologĂ­a, BiologĂ­a Molecular y Neurociencias; Argentin

    Clinical characteristics, treatment, and blood pressure control in patients with hypertension seen by primary care physicians in Spain: the IBERICAN study

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    Objectives: To determine the clinical profile, according to the history of hypertension, the risk of developing hypertension, current antihypertensive treatment and BP control rates in patients with hypertension from the IBERICAN cohort. Methods: IBERICAN is an ongoing prospective cohort study, whose primary objective is to determine the frequency, incidence, and distribution of CVRF in the adult Spanish population seen in primary care settings. This analysis shows the baseline clinical characteristics of patients with hypertension. Adequate BP control was defined as BP <140/90 mmHg according to 2013 ESH/ESC guidelines. Results: A total of 8,066 patients were consecutively included, of whom 3,860 (48.0%) had hypertension. These patients were older (65.8 ± 10.9 vs. 51.6 ± 14.7 years; p < 0.001), had more cardiovascular risk factors, target organ damage and cardiovascular disease (CVD) in comparison with those without hypertension. The risk of hypertension increased with the presence of associated CV risk factors and comorbidities, particularly diabetes, obesity and the metabolic syndrome, and decreased with the intensity of physical activity. Regarding antihypertensive treatments, 6.1% of patients did not take any medication, 38.8% were taking one antihypertensive drug, 35.5% two drugs, and 19.6% three or more antihypertensive drugs. Overall, 58.3% achieved BP goals <140/90 mmHg. A greater probability of BP control was observed with increasing age of patients and the greater number of antihypertensive drugs. Blood pressure control was lower in hypertensive patients with diabetes, obesity, the metabolic syndrome, increased urinary albumin excretion, higher pulse pressure, and lack of antihypertensive treatment. Conclusions: About half of patients attended in primary care settings have hypertension in Spain. Patients with hypertension have a worse CV clinical profile than non-hypertensive patients, with greater association of CVRF and CVD. Around four out of ten patients do not achieve the recommended BP goals, and higher use of combination therapies is associated with a better BP control

    Prevalence of Hyperuricemia and Its Association with Cardiovascular Risk Factors and Subclinical Target Organ Damage

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    The role of uric acid levels in the cardiovascular continuum is not clear. Our objective is to analyze the prevalence of hyperuricemia (HU) and its association with cardiovascular risk factors (CVRF), subclinical target organ damage (sTOD), and cardiovascular diseases (CVD). We evaluated the prevalence of HU in 6.927 patients included in the baseline visit of the IBERICAN study. HU was defined as uric acid levels above 6 mg/dL in women, and 7 mg/dL in men. Using adjusted logistic regression models, the odds ratios were estimated according to CVRF, sTOD, and CVD. The prevalence of HU was 16.3%. The risk of HU was higher in patients with pathological glomerular filtration rate (aOR: 2.92), heart failure (HF) (aOR: 1.91), abdominal obesity (aOR: 1.80), hypertension (HTN) (aOR: 1.65), use of thiazides (aOR: 1.54), left ventricular hypertrophy (LVH) (aOR: 1.36), atrial fibrillation (AFIB) (aOR: 1.29), and albuminuria (aOR: 1.27). On the other hand, being female (aOR: 0.82) showed a reduced risk. The prevalence of HU was higher in men, in patients presenting CVRF such as HTN and abdominal obesity, and with co-existence of LVH, atrial fibrillation (AFIB), HF, and any form of kidney injury. These associations raise the possibility that HU forms part of the early stages of the cardiovascular continuum. This may influence its management in Primary Healthcare because the presence of HU could mean an increased CV risk in the patients

    Ikasleen talentua sustatzeko gida: Batxilergorako, Lanbide Heziketarako eta unibertsitaterako hainbat aukera

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    Ikasleen talentuaren garapena hezkuntza erakundeen erronka nagusietako bat da. Ildo horretatik, ikerketek adierazten dute testuinguru aberatsa eskaintzea gakoa dela ikasleen talentuarekin lotutako gaitasunak garatzeko. Gida honek ikuspegi hori hartzen du oinarritzat, eta hezkuntza testuinguruak ikasleen talentua sustatzeko aproposagoak izateko bideak proposatu nahi ditu. Helburu horrekin, bi ataleko gida bat proposatzen da. Batetik, talentuaren definizioa jaso, eta talentua osatzen duten dimentsioak zehazten dira. Azpimarratzekoa da talentuaren kontzeptualizazio lan hori askotariko sektoreetako ordezkarien arteko eztabaidaren ondorio dela. Bestetik, talentuaren dimentsio horiek hezkuntza testuinguruetan sustatzeko bideak iradokitzen dira. Horretarako, aintzat hartu dira ikertzaileen ekarpenak eta talentuaren sustapenaren esparruko nazioarteko praktika esanguratsuak
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