4,117 research outputs found
Meanings in the Process of Signification of Lancôme's Beauty Serum Advertisements
Through this study, the writer aimed to find out how meanings are created in advertisements video. The three objectives of this study are to find out how meanings are created through verbal expressions, how the visual expressions of the advertisements support the verbal expressions and to find out the differences between the two advertisements. The data used to conduct this study were Lancôme Génifique Serum Advertisement (2009) and Lancôme Advanced Génifique Serum (2013). After analyzing the data with the research questions in mind, the writer found out that meanings in both advertisements are created through the verbal captions and what were visually shown on the advertisement videos. The writer also found out that there were a few differences between the first and second advertisements. The second advertisement provides more appealing visuals, more direct and convincing verbal expressions and more facts and needed information regarding the promoted product. These factors make the second advertisement an improved version of the first one
Image Description Using a Multiplier-Less Operator
Cataloged from PDF version of article.A fast algorithm for image classification based on a computationally efficient operator forming a semigroup on real numbers is developed. The new operator does not require any multiplications. The co-difference matrix based on the new operator is defined and an image descriptor using the co-difference matrix is developed. In the proposed method, the multiplication operation of the well-known covariance method is replaced by the new operator. The proposed method is experimentally compared with the regular covariance matrix method. The proposed descriptor performs as well as the the regular covariance method without performing any multiplications. Texture recognition and licence plate identification examples are presented
Rigorous Calculations of Non-Abelian Statistics in the Kitaev Honeycomb Model
We develop a rigorous and highly accurate technique for calculation of the
Berry phase in systems with a quadratic Hamiltonian within the context of the
Kitaev honeycomb lattice model. The method is based on the recently found
solution of the model which uses the Jordan-Wigner-type fermionization in an
exact effective spin-hardcore boson representation. We specifically simulate
the braiding of two non-Abelian vortices (anyons) in a four vortex system
characterized by a two-fold degenerate ground state. The result of the braiding
is the non-Abelian Berry matrix which is in excellent agreement with the
predictions of the effective field theory. The most precise results of our
simulation are characterized by an error on the order of or lower. We
observe exponential decay of the error with the distance between vortices,
studied in the range from one to nine plaquettes. We also study its correlation
with the involved energy gaps and provide preliminary analysis of the relevant
adiabaticity conditions. The work allows to investigate the Berry phase in
other lattice models including the Yao-Kivelson model and particularly the
square-octagon model. It also opens the possibility of studying the Berry phase
under non-adiabatic and other effects which may constitute important sources of
errors in topological quantum computation.Comment: 27 pages, 9 figures, 3 appendice
Cefalea racimos en una niña de 3 años
Summary. Introduction. Cluster headache is a rare disorder in childhood. We identified, in the literature, 64 cases of cluster
headache starting at or before 18 years (only 17 of them began before 10 years old). All patients met the criteria of the International
Headache Society. Russell et al demonstrated recently that the cluster headache is an inherited disorder in some families. They
conclude that the gene is present in 3 to 4% of males and 7 to 10% of females with cluster headache and that it has an autossomal
dominant transmission. Clinical case. The authors report the clinical case of a five-year-old child with cluster headache starting
at three years. This paper reviews the differential diagnosis and the treatment of cluster headach
Bispectral index is a topographically dependent variable in patients receiving propofol anaesthesia
Background. As very strong agreement has been reported between bispectral index (BIS) values measured from the occipital and frontal skull areas, we compared BIS values measured from central and parietal areas with those from frontal area to investigate whether BIS is really a topographically dependent or topographically independent variable. Methods. Twenty patients, ASA I-II, non-obese, aged 18-62 yr and with no neurological disorders were enrolled. Based on the 10-20 international landmarks, five silver dome electrodes were positioned: F7, C3, P7, Cz (common reference) and Fp1 (ground). Using frontal (F7-Cz), central (C3-Cz) and parietal (P7-Cz) electrode montages, the corresponding BIS values were simultaneously recorded with an Aspect A-1000 monitor (software v3.12). The BIS values were recorded at the propofol concentration allowing laryngeal mask insertion, which was maintained during the 10 min data collection period in absence of additional external stimuli. Data were analysed using the Kruskall-Wallis, Wilcoxon paired sign with Bonferroni correction, Bland-Altman and linear correlation tests. Results. At the predicted effect target propofol concentration 4-8 μg ml−1, the 10 min mean BIS (median [min-max]) were 32 [20-44], 46 [28-68] and 58 [41-72] for the frontal, central and parietal leads, respectively. Differences between these BIS recordings were statistically significant (P<0.0001, Kruskall-Wallis; P<0.005, Wilcoxon paired sign test). Conclusions. The present results provide evidence that BIS index is a topographically dependent variable in patients receiving propofol anaesthesi
Cerebellar ataxia with spasmodic cough: a new form of dominant ataxia
Background: Although mentioned in most series, “pure”
autosomal dominant cerebellar ataxias, except spinocerebellar
ataxia type 6, are difficult to differentiate on clinical
grounds.
Objective: To describe Portuguese families with a peculiar
pure form of dominant ataxia that, to our knowledge,
has never been documented before and in which
cerebellar signs are preceded by spasmodic cough.
Patients: Through a population-based survey of hereditary
ataxias in Portugal, we identified 19 patients in
6 families with this particular disorder.
Results: The majority of patients had a pure late-onset
ataxia with a benign evolution. In all of the families, attacks
of spasmodic coughing preceded ataxia for 1 to 3
decades and were a reliable marker of the disease. In Portugal,
this form of ataxia accounts for 2.7% of all of the
dominant ataxias.
Conclusions: The families that we describe shared
some relevant clinical and imagiological features with
spinocerebellar ataxia type 5 and the recently described
spinocerebellar ataxia type 20, allelic to spinocerebellar
ataxia type 5. Spinocerebellar ataxia types 5 and 20
could be different phenotypic expressions of the same
molecular disorder. The association of a dominant
ataxia with spasmodic cough is rare but probably underdiagnosed.Fundação para a Ciência e Tecnologi
- …