1,721,042 research outputs found
BIOETHICS: A CHALLENGE AND AN OPPORTUNITY FOR HOSPITAL PHARMACISTS
Full text linkObjectives Traditionally, pharmacy ethics in Europe has held an insignificant place in the scheme of pharmaceutical education. We embraced the idea that bioethics should be an integral part of a pharmacist's education and professional practice, especially in hospital pharmacy where the concept of 'pharmaceutical care' should be revitalised to strengthen the broad-based and patient-oriented responsibilities of the clinical pharmacist. Methods We decided to structure a bioethics course tailored to pharmacists who are specialising in hospital pharmacy. We first created a training network partnership between a university and a research hospital to integrate classroom teaching with skill-specific practical experience. Our course pilot project introduces, in two of the four years of the national specialty programme, general topics and practical bioethical issues. Results A pilot course on ethics for the School of Specialisation in Hospital Pharmacy began at the Padua University in 2014. in February 2017 we contacted the same students again, asking them further questions about their experience. Several students asked to examine more cases and to deal with the few arguments that questioned them on an ethical level. On the whole, through the comments of trainees, the needs of those who are facing an unfamiliar subject, which is perceived as important, emerge. Conclusion Even if we are aware that this is a pilot project and requires more data, dissemination of this experience into a wider network will help us to define an effective educational pathway in collaboration with other Specialty Schools of Hospital Pharmacy
On the dimension of contact loci and the identifiability of tensors
No full textLet X in P^r be an integral and non-degenerate variety. Set n:= dim (X). We prove that if the (k+n-1)-secant
variety of X has (the expected) dimension (k+n-1)(n+1)-1<r and X is not uniruled by lines, then X is not k-weakly defective
and hence the k-secant variety satisfies identifiability, i.e. a general element of it
is in the linear span of a unique S in X with card(S) =k. We apply this result to many Segre-Veronese varieties
and to the identifiability of Gaussian mixtures G{1,d}. If X is the Segre embedding of a multiprojective space we prove
identifiability for the k-secant variety (assuming that the (k+n-1)-secant variety has dimension (k+n-1)(n+1)-1<r,
this is a known result in many cases), beating several bounds on the identifiability of tensors
Stratification of the fourth secant variety of Veronese variety via the symmetric rank
No full textIf is a projective non degenerate variety, the -rank of a point is defined to be the minimum integer such that belongs to the span of points of . We describe the complete stratification of the fourth secant variety of any Veronese variety via the -rank. This result has an equivalent translation in terms both of symmetric tensors and homogeneous polynomials. It allows to classify all the possible integers that can occur in the minimal decomposition of either a symmetric tensor or a homogeneous polynomial of -border rank (i.e. contained in the fourth secant variety) as a linear combination of either completely decomposable tensors or powers of linear forms respectively
Unique decomposition for a polynomial of low rank
No full textLet F be a homogeneous polynomial of degree d in m+1 variables defined over an algebraically closed field of characteristic 0 and suppose that F belongs to the sth secant variety of the d-uple Veronese embedding of P-m into P((m+d)(d))(-1) but that its minimal decomposition as a sum of dth powers of linear forms requires more than s summands. We show that if s <= d then F can be uniquely written as F = M-1(d) + ... + M-t(d) + Q, where M-1, ... , M-t are linear forms with t <= (d - 1)/2, and Q is a binary form such that Q = Sigma(q)(i=1) l(i)(d-di)m(i) with l(i)'s linear forms and m(i)'s forms of degree d(i) such that Sigma(d(i) + 1) = s - t
A note on plane rational curves and associated Poncelet surfaces.
Full text linkAbstract. We consider the parametrization (f_0; f_1; f_2) of a plane rational
curve C, and we want to relate the splitting type of C (i.e. the second Betti
numbers of the ideal (f0; f1; f2) in K[P1] ) with the singularities of the associ-
ated Poncelet surface in P3. We are able of doing this for Ascenzi curves, thus
generalizing a result in [ISV] in the case of plane curves. Moreover we prove
that if the Poncelet surfaces S in P3 is singular then it is associated to a curve
C which possesses a point of multiplicity at least 3
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
Singularities of plane rational curves via projections
Full text linkWe consider the parameterization f=(f0:f1:f2)of a plane rational curve C of degree n, and we study the singularities of C via such parameterization. We use the projection from the rational normal curve Cn⊂Pn to C and its interplay with the secant varieties to Cn. In particular, we define via f certain 0-dimensional schemes Xk⊂Pk, 2≤k≤(n−1), which encode all information on the singularities of multiplicity ≥k of C (e.g. using X2 we can give a criterion to determine whether C is a cuspidal curve or has only ordinary singularities). We give a series of algorithms which allow one to obtain information about the singularities from such schemes
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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