431 research outputs found
Evidence of basaltic magma intrusions in a trachytic magma chamber at Pantelleria (Italy)
In the last 50 ka basalts have erupted outside the margin of the young caldera on the island
of Pantelleria. The inner portion of the caldera has instead been filled by trachyte lavas,
pantellerite lavas and pumice fall deposits. This paper focuses on a low-volume benmoreite
lava topping the trachyte lava pile in the middle of the young caldera.
The mineral chemistry, including trace elements in clinopyroxene (LA-ICP-MS), suggests
that benmoreite is a hybrid product resulting from mixing between a trachytic magma and a
basaltic end member even more primitive than those erupted during the past 50 ka. The
principal inference is that basaltic magmas intruded the trachytic magma chamber below the
caldera and were erupted in recent times within the caldera and not only beyond, as the
distribution of basaltic centers would suggest. Data are used to discuss the relationship
between felsic and mafic magmas at Pantelleria
The Cost of Social Agents
In this paper we follow the BOID (Belief, Obligation, Intention, Desire) architecture to describe agents and agent types in Defeasible Logic. We argue that the introduction of obligations can provide a new reading of the concepts of intention and intentionality. Then we examine the notion of social agent (i.e., an agent where obligations prevail over intentions) and discuss some computational and philosophical issues related to it. We show that the notion of social agent either requires more complex computations or has some philosophical drawbacks
Exploring the interdependencies of research funders in the UK
Investment in medical research is vital to the continuing improvement of the UK's health and wealth. It is through research that we expand our understanding of disease and develop new treatments for patients. Medical research charities currently contribute over ÂŁ1 billion annually to medical research in the UK, of which over ÂŁ350 million is provided by Cancer Research UK. Many charities,
including Cancer Research UK, receive no government funding for their research
activity.
Cancer Research UK is engaged in a programme of work in order to better understand the medical research funding environment and demonstrate the importance of sustained investment. A key part of that is the Office of Health
Economics‟ (OHE) 2011 report “Exploring the interdependency between public and charitable medical research”. This study found that there are substantial
benefits, both financial and qualitative, from the existence of a variety of funders and that reductions in the level of government financial support for medical
research are likely to have broader negative effects.
This contributed to other evidence which found that the activities and funding of the charity, public and private sectors respectively are complementary, i.e. mutually reinforcing, rather than duplicative or merely substituting for one another.
“Exploring the interdependencies of research funders in the UK” by the Office of Health Economics (OHE) and SPRU: Science and Technology Policy Research at the University of Sussex, represents a continued effort to build the evidence base around the funding of medical research.
This report uncovers the extent to which funders of cancer research are interdependent, nationally and internationally. Key figures show that two
thirds of publications acknowledging external support have relied on multiple funders, while just under half benefited from overseas funding, and almost a fifth are also supported by industry. In addition the analysis
shows that the general public would not want tax funding of cancer research to be reduced, but would not donate enough to charities to compensate for any such reduction
Contrasting Styles of Inter-Caldera Volcanism in a Peralkaline System: Case Studies from Pantelleria (Sicily Channel, Italy)
The recent (<190 ka) volcanic history of Pantelleria is characterized by the eruption of nine peralkaline ignimbrites, ranging in composition from comenditic trachyte to comendite to pantellerite. The ~46 ka Green Tuff (GT) was the last of these ignimbrites, which was followed by many effusive and explosive low-volume eruptions of pantellerite from vents within the caldera moat and along the caldera rim. Although recent studies have shed additional light on the age, petrochemistry, and volcanology of the older ignimbrites, there is very little knowledge of magmatism that occurred between these older ignimbrites, primarily due to the very scarce exposures. In this paper, we present new field descriptions and geochemical data for three local peralkaline centers never studied before, two pre-GT and one post-GT, which share a similar setting with respect to the caldera scarps but differ in terms of their age, composition, and eruptive style. These centers include: (i) the older (~125 ka) Giache center (comenditic trachyte), (ii) the ~67 ka Attalora center (comendite, pantellerite), and (iii) the younger (~14 ka) Patite center (pantellerite)
Nomophobia in healthcare: an observational study between nurses and students
BACKGROUND AND AIM: The abuse of technical devices can be considered a form of addiction that is defined in current literature as Nomophobia. The phenomenon appears to be quite widespread among nurses and nursing students, and nomophobic behaviours of professionals can lead to a reduction in the quality of the care provided. The aim of this study is to investigate the situation in a University and in a hospital in northern Italy and evaluate the levels of nomophobia among nurses and students. METHODS: An observational study was conducted with a questionnaire using a sample of nursing students and nurses. Both of the studies had the common goal of investigating the levels of nomophobia and evaluate the comparison between the two groups. RESULTS: In general, neither nurses nor students seem to demonstrate nomophobia's critical levels. The comparison of the daily use of the smartphone between nurses and students shows that the frequent use of students is balanced by the nurses' daily trend line that progressively decreases. Both nurses and students affirm to use their smartphones at work with a certain frequency although, especially among the students, it is usually for appropriate and justified reasons. CONCLUSIONS: It is necessary to consider the development of an educational project that regulates the use of smartphones, explaining the meaning of nomophobia, right from the first year of the University experience so as to correctly address the students' (and future professionals') behaviours to make them aware of the misuse of mobile phones, especially in the clinical setting that can easily cause distractions and consequently irreversible errors
Treatment decision making in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy: State of the art
No abstract availabl
- …