1,721,047 research outputs found
La gestione del catetere venoso periferico
No full textIndagine sulla formazione di base per la riduzione dei rischi correlati all’assistenza
Mobile Health. Una risorsa preziosa anche nella diagnosi
No full textUn’analisi della letteratura evidenzia che oggi gli approcci di prevenzione e cura
delle lesioni cutanee da pressione sono disomogenei, con mancanza di uniformità
nei comportamenti assistenziali, terapeutici e diagnostici. Il tutto associato a una
documentazione incompleta e spesso non specifica. Gli autori osservano l’impatto
sull’assistenza infermieristica di applicazioni per smartphone che contribuiscano a
ottimizzare la qualità assistenziale, fornendo un supporto valido a costi adeguati.
Tuttavia, lo scetticismo che segue la novità, l’assenza di linee guida e alcuni limiti delle
app stesse ne rallentano lo sviluppo e l’inserimento nella pratica assistenziale
Decoding the Role of Adsorbates Entropy in the Reactivity of Single-Atom Catalysts
Full text linkSingle-atom catalysts (SACs) are rapidly gaining attention as a versatile class of materials that combine the advantages of both homogeneous and heterogeneous catalysis. A growing number of studies aim to identify potential new SACs or to describe their structure and reactivity through ab initio quantum chemical simulations. While many computational studies primarily address reactions involving small molecules, such as water splitting or CO2 reduction, the application scope of SACs is rapidly broadening to include the production of fine chemicals and the conversion of biomass-derived platform molecules, processes that involve larger, more complex reactants. Using density-functional theory (DFT) simulations, we demonstrate that, while an approximate treatment of entropy is acceptable for molecules with up to three atoms, it introduces substantial errors in reactions involving more complex molecules. Our results reveal a linear correlation between the entropy of adsorbed molecules and that of the corresponding isolated species, mirroring trends observed on extended catalytic surfaces. For the largest systems investigated in this study, the entropy of the free molecule is reduced by approximately 10-20% upon adsorption; for small molecules, this reduction can range from 50 to 70%. This disparity arises because, on SACs, the translational entropy is effectively zero, the rotational entropy is minimal, and the vibrational entropy increases with the size of the molecule. Moreover, the entropy of adsorbates scales linearly with the number of atoms in the molecule, allowing for the prediction of entropic contributions of adsorbates on SACs without additional computational cost. Using propyne hydrogenation as a test, we demonstrate that the reaction energy profile computed with current approximate approaches for estimating the entropy of adsorbates differs significantly from the profile where entropy is explicitly included. These findings highlight the importance of considering adsorbate entropy for accurately predicting the catalytic activity of SACs, particularly for reactions involving complex molecules
Hand hygiene in preventing nosocomial infections. a nursing research
No full textObjectives: To verify whether there is some correlation between the nursing workload and the occurrence of healthcare-associated infections.
Material and methods: An anonymous questionnaire made up of 20 items has been drafted for this specific purpose and delivered to a sample of 70 participants, including 33 nurses and 37 nursing students of a well-known University Hospital in Rome. The study is supported by extensive documental research, and a specific literature review.
Results: Hand hygiene is a mandatory daily practice, simple but critical, but not always clear enough for both nurses and students. The investigation demonstrated inconsistencies between nurses’ and students’ behaviour and what is recommended by the new WHO international guidelines. The documented correlation between the workload and the occurrence of healthcare-associated infections may be explained by the negative effect of nursing workload on correct hand-washing procedures.
Out of the total sample, 58.6% answered affirmatively to both the presence of healthcare-associated infections within their unit and an excessive daily workload. Indeed, the remaining 41.4% of the sample do not report an excessive workload and states that “there are no healthcare-associated infections within their operational reality, at least not in the time period covered by the present investigation”.
Although limited to a small sample, this study may reveal that the correct practice of hand washing, prompted and considered fundamental by WHO, is still much underrated.
Conclusions: Hand hygiene should be better understood and practiced in all healthcare facilities, through a series of interventions such as: specific training courses, the presence of a gel sanitizer next to each patient’s bed or in each patient’s room, as well as the adoption of the new international guidelines in all units. The analysis of other correlations found the presence of a protective factor (RR0.05). The same considerations could be also inferred as far as the presence of gel dispensers and disposable wipes near hospital beds are concerned, for the distribution of information leaflets about proper hand hygiene and the frequency of updating courses declared by both nurses and nursing students.
The quality of health care starts from the simplest things, such proper hand hygiene
Farmaci Look Alike/Sound Alike. errori di somministrazione della terapia e sicurezza dei pazienti in ospedale
No full textThe present article highlights the Italian reality about safe administration of look-alike/sound-alike drugs in
hospital wards. The 40% of medication errors is ascribable to exchange of drugs. The international literature
shows that the problem is underestimated. The Italian Ministry of Health has issued specific recommendations
on “LASA drugs and patient safety”, this project is addressed to hospi
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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