1,721,166 research outputs found
Ultrasound-guided catheter tip location in neonatal central venous access. Focus on well-defined protocols and proper ultrasound training
No full textthe high success rate in tip location. This is probably secondary
to the appropriate training of the health care providers in the
use of ultrasound scans and to the adoption of a well-defined
protocol for tip location. We have previously proposed a very
similar approach,2 developing a protocol, “Neo-ECHOTIP,”
which includes the use of 3 different acoustic windows (apical
4-chamber view, bicaval subcostal view, high right parasternal
longitudinal view) plus a small flush of normal saline (so-called
“bubble test”), so to increase the accuracy of tip visualization
Peripheral Venous Access in Neonates
No full textThe appropriate type of vascular access device, peripheral or central, is chosen in
order to accommodate the needs of the neonate (parenteral nutrition, intravenous
medication, etc.). The choice of vascular access is also related to many other factors
such as gestational age, birth weight, comorbidities, previous history of infusion
therapy, and ability/resources available for inserting and maintaining the device.
As general rule, the vascular access device should be of the smallest outer diameter
with the fewest number of lumens and should be the least invasive as possible,
still considering the prescribed intravenous therapy.
Peripheral venous access (PVA) is certainly the less invasive venous access
device; though, venous cannulation may be a challenging procedure especially in
small preterm neonates, even under perfect conditions (i.e., in ventilated and sedate
Advanced energy technologies, methods, and policies to support the sustainable development of energy, water and environment systems
No full textThis editorial discusses the contributions of the papers belonging to the virtual special issue (VSI) of Energy Reports dedicated to the series of four SDEWES Conferences on Sustainable Development of Energy, Water and Environment Systems held in Cologne (Germany), Sarajevo (Bosnia and Herzegovina), Gold Coast (Australia) and Buenos Aires (Argentina) in 2020. High quality review papers and original research articles presented at the SDEWES Conferences relevant to the Journal are included in this VSI for a total of 20 accepted articles invited by the Guest Editors. Published papers deal with key research topic related to clean energies, advance energy technologies, building-plant design solutions, energy management measures, policies and regulations capable to ensure that all countries and regions develop and implement expertise and technologies to tackle climate change and make progress towards a net zero energy economy. Such a complex goal poses some major challenges and calls for the effort of scientists and stakeholders to commit to develop and carry out multidisciplinary approaches towards the sustainable development of modern cities for a decarbonized economy. This process is also crucial for achieving a successful and just energy transition, necessary to reduce sources of conflict and iniquity typical of geopolitical tensions, to avoid causes of uncertainty in the long run to the sustainable development Agenda, towards energy security, environmental protection, and the affordability of energy. In this framework, the Sustainable Development of Energy, Water and Environment Systems Series Conference represents a platform for the development of inter-sectoral collaborations among scientists and stakeholders and it promotes the development and improvements of advanced energy technologies and systems for the sustainable and just transition. The SDEWES Conferences brought together around 1000 researchers from all over the world working in the field of the sustainable development. According to the papers published in the VSI of Energy Reports dedicated to SDEWES Conferences, the editorial is subdivided in several sections based on the relevant topics on which the VSI papers are focused: renewable technologies for the energy efficiency of buildings and communities, advanced technologies and tools for the energy efficient design of buildings and systems, challenges and opportunities of policies and regulations to support the energy transition and meet the sustainable development targets
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
Accelerating the low-carbon transition: Technological advancements and challenges for the sustainable development of energy, water, and environment systems
No full textModelling and simulation of Net Zero Energy Buildings by renewable energy and distributed electric generation
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