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61.
Valentina Vidranski Renata Laskaj Dubravka Sikiric Visnja Skerk 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(2):285-294
Background
Platelet satellitism is a phenomenon of unknown etiology of aggregating platelets around polymorphonuclear neutrophils and other blood cells which causes pseudothrombocytopenia, visible by microscopic examination of blood smears. It has been observed so far in about a hundred cases in the world.Case subject and methods
Our case involves a 73-year-old female patient with a urinary infection. Biochemical serum analysis (CRP, glucose, AST, ALT, ALP, GGT, bilirubin, sodium, potassium, chloride, urea, creatinine) and blood cell count were performed with standard methods on autoanalyzers. Serum protein fractions were examined by electrophoresis and urinalysis with standard methods on autoanalyzer together with microscopic examination of urine sediment. Erythrocyte sedimentation rate, blood culture and urine culture tests were performed with standard methods.Results
Due to typical pathological values for bacterial urinary infection, the patient was admitted to the hospital. Blood smear examination revealed phenomenon, which has persisted for three weeks after the disease has been cured. Blood smears with EDTA as an anticoagulant had platelet satellitism whereas the phenomenon was not observed in tubes with different anticoagulants (Na, Li-heparin) and capillary blood.Discussion
We hypothesize that satellitism was induced by some immunological mechanism through formation of antibodies which have mediated platelets binding to neutrophil membranes and vice versa. Unfortunately we were unable to determine the putative trigger for this phenomenon. To our knowledge this is the second case of platelet satellitism ever described in Croatia.Key words: blood platelets, thrombocytopenia, EDTA, urinary infection 相似文献62.
63.
Valentina Lo Cascio Giovanni Guzzo Francesco Pace Ugo Pace 《International Journal for Educational and Vocational Guidance》2013,13(2):135-149
In this study, we explored the unique and common contributions of anxiety, self-esteem, and family communication on indecisiveness among adolescents. Three hundred and fifty pupils from 13 to 16 years of age completed self-report measures on indecisiveness, quality of family communication, trait anxiety, and self-esteem. The findings in this study showed that students’ indecisiveness is predicted by family communication mediated by anxiety and self-esteem. These results have important implications for practice as it stresses the importance of anxiety and self-esteem. Nevertheless, the counselors could also focus on enhancing relationship-building skills by introducing the adolescents’ career formation as an adolescent–parent joint project. 相似文献
64.
Valentina Goglio 《Journal of Higher Education Policy & Management》2016,38(2):212-226
In roughly a decade, university rankings gained the foreground in the policy arena for higher education and their influence is not going to decrease. However, several methodological shortcomings and warnings about the unintended consequences for national higher education systems have been raised. Against this background, this paper stresses that the individual recipients of information contained in university rankings are currently overlooked. Indeed, university rankings are addressed to a generic recipient, but actually, there are multiple audiences for rankings, and each of these audiences has different needs and each one attributes a different value to information attached to rankings. Referring to a theoretical tool borrowed from bioethics, this paper highlights that the ranking game involves a variety of recipients and that the current setting of the ranking panorama leaves room for gaps to emerge. 相似文献
65.
The present study reports findings on pre-service teachers’ thinking during planning and implementing play-based art activities. ‘Thinking’ (in the present study) is informed by discourses emphasising art teaching and learning in relation to play and theoretical assumptions conceptualising planning as ‘practice of knowing’. Pre-service teachers’ thinking was explored through: (a) a tool ‘sk?ptikó’ (a series of questions), created by the researchers to initiate inquiry during planning and provide evidence about participants’ ‘practice of knowing’, and (b) a semi-structured interview using the method of photo-elicitation. Classroom observation, researchers’ reflective notes, document analysis (‘sk?ptikó’) and photographs were used in conjunction with data gathered from semi-structured interviews to confirm the findings. The findings suggest that there is a relationship between pre-service early childhood teachers’ thinking (planning) and practice (implementation). The rationale behind their decisions appears to compete with their thinking on philosophical/moral choices (knowing why). The notion of space has been challenged through artistic practices incorporating ‘play’, while art activities were characterised as playful, reinforcing active learning. The study highlights the significance of thinking through documentation, as this was found to contribute to reflective pedagogical practices. 相似文献
66.
April L. Mustian Robert E. Lee Carlos Nelson Valentina Gamboa-Turner Lisa Roule 《The Educational forum》2017,81(4):467-481
AbstractPreparing special educators for the highest-need schools remains an ongoing challenge in urban districts across the United States. One university’s collaborative community-based immersive partnership model, with emphasis on service learning, has demonstrated promising levels of impact on candidates’ preparation as preservice teachers learning how to celebrate the rich cultural histories of the communities where they are immersed. Both quantitative and qualitative results on the impact of one specific example of this work are provided. 相似文献
67.
Arkorful Valentina Barfi Kwaku Anhwere Aboagye Isaac Kwame 《Education and Information Technologies》2021,26(4):3771-3787
Education and Information Technologies - The study examined the Integration of Information and Communication Technology in teaching in Senior High Schools. The study focused on the Kumasi Girls... 相似文献
68.
Grazia Valentina Mameli Consuelo Molinari Luisa 《European Journal of Psychology of Education - EJPE》2021,36(4):1117-1134
In this study, we adopted a person-oriented approach to (a) identify latent profiles of adolescents characterized by unique patterns of perceived teacher autonomy support and student agency, (b) investigate whether perceived interpersonal justice can predict profile membership and (c) compare different profiles in relation to personal responsibility. Participants were 545 Italian secondary school students (55% boys, 94% born in Italy, Mage = 14.24, SDage = .53). Five adolescents’ profiles emerged: disengaged (24%), average students (34%) and committed (28%), with low, mean and high scores, respectively, in both teacher autonomy support and agency; resistant (5%), with low scores in teacher autonomy support and high scores in agency; compliant (9%), with high scores in teacher autonomy support and low scores in agency. Perceptions of interpersonal justice significantly predicted profile membership in the comparison of almost all profiles. Several significant differences in responsibility among profiles also emerged. Implications of the findings for practices and policies are discussed.
相似文献69.
The main goal of this paper is to analyse the single and joint impact of regulation policies and research network policies on environmental innovation. Our theoretical framework combines the open eco-innovation mode approach with the Porter Hypothesis, by adapting them to the knowledge production function where green patents are the dependent variable. We focus on the factors that influence the production of green patents as a proxy of new “environmental” knowledge for a panel of European countries over time. We find that both marked-based regulation policies and participation in green European research networks (in particular with universities and public research centres) positively affect environmental innovation. Moreover, the two policy tools have a complementary effect. This suggests that the effectiveness of environmental regulation policies can be increased by combining them with appropriate innovation policies. 相似文献
70.
This study is the first to employ panel data to examine well‐being outcomes—self‐rated health, happiness, life satisfaction, and school enjoyment—of children in transnational families in an African context. It analyzes data collected in 2013, 2014, and 2015 from secondary schoolchildren and youth (ages 12–21) in Ghana (N = 741). Results indicate that children with fathers, mothers, or both parents away and those cared for by a parent, a family, or a nonfamily member are equally or more likely to have higher levels of well‐being as children in nonmigrant families. Yet, there are certain risk factors—being a female, living in a family affected by divorce or by a change in caregiver while parents migrate—that may decrease child well‐being. 相似文献