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Triplectic Quantization of W2 gravity
The role of one loop order corrections in the triplectic quantization is
discussed in the case of W2 theory. This model illustrates the presence of
anomalies and Wess Zumino terms in this quantization scheme where extended BRST
invariance is represented in a completely anticanonical form.Comment: 10 pages, no figure
Harmonic Superspace Gaugeon Formalism for the ABJM Theory
In this paper we will analyse the ABJM theory in harmonic superspace. The
harmonic superspace variables will be parameterized by the coset
and thus will have manifest supersymmetry. We will study the
quantum gauge transformations and the BRST transformations of this theory in
gaugeon formalism. We will use this BRST symmetry to project out the physical
sub-space from the total Hilbert space. We will also show that the evolution of
the -matrix is unitary for this ABJM theory in harmonic
superspace.Comment: 11, pages, 0 figures, accepted for publication in Mod. Phys. Lett.
Dengue disease, basic reproduction number and control
Dengue is one of the major international public health concerns. Although
progress is underway, developing a vaccine against the disease is challenging.
Thus, the main approach to fight the disease is vector control. A model for the
transmission of Dengue disease is presented. It consists of eight mutually
exclusive compartments representing the human and vector dynamics. It also
includes a control parameter (insecticide) in order to fight the mosquito. The
model presents three possible equilibria: two disease-free equilibria (DFE) and
another endemic equilibrium. It has been proved that a DFE is locally
asymptotically stable, whenever a certain epidemiological threshold, known as
the basic reproduction number, is less than one. We show that if we apply a
minimum level of insecticide, it is possible to maintain the basic reproduction
number below unity. A case study, using data of the outbreak that occurred in
2009 in Cape Verde, is presented.Comment: This is a preprint of a paper whose final and definitive form has
appeared in International Journal of Computer Mathematics (2011), DOI:
10.1080/00207160.2011.55454
A Case of Concurrent Riedel's, Hashimoto's and Acute Suppurative Thyroiditis
Riedel's thyroiditis (RT) is a rare form of infiltrative and inflammatory disease of the thyroid, first described by Bernard Riedel in 1896. The concurrent presence of RT and other thyroid diseases
has been reported, but, the association of RT with Hashimoto's thyroiditis and acute thyroiditis has
not yet been reported. We present a case of concurrent Riedel's, Hashimoto's and acute thyroiditis that occurred in a
45-year-old patient
EspĂ©cies do gĂȘnero Eimeria schneider, 1875 (Apicomplexa: eimeriidae) parasitas de caprinos no municĂpio de MossorĂł, Rio Grande do Norte.
0 estudo foi realizado em vinte propriedades localizadas no MunicĂpio de MossorĂł, Rio Grande do Norte e teve como objetivos identificar e fonecer dados morfomĂ©tricos das espĂ©cies do gĂȘnero Eimeria, determinar a ocorrĂȘncia e as respectivas frequĂȘncias nos animais jovens e adultos, bem como comparar a intensidade de infecção para as diferentes espĂ©cies. Um total de 478 caprinos de ambos os sexos foram examinados, sendo 218 com idade inferior a 12 meses e 260 adultos. Oocistos de Eimeria foram encontrados em todas as propriedades infectando 92,48% dos animais examinados. Os caprinos jovens foram os mais atingidos (95,43%) e apresentaram maior liberação de oocistos nas fezes do que os adultos. Estes por sua vez, tambĂ©m apresentaram alto percentual de positividade (90,00%). NĂŁo foi observada sintomatologia clĂnica em nenhum dos animais examinados. Nove espĂ©cies de Eimeria foram identificadas apresentando as seguintes freqĂŒĂȘncias entre os jovens e adultos, respectivamente: E. arloingi (37,75%, 42,22%); E. alijevi (14,15%, 10,85%), E. hirci (9,25%, 13,95%), E. jolchijevi (13,6%, 2,47%), E. caprina (7,55%, 8,31%), E. christensen (9,05%, 6,89%), E. caprovina (5,20%, 9,26%), E. ninakohlyakimovae (3,05%, 5,63%) e E. apsheronica (0,45%, 0,54%). E. arloingi foi a mais frequente independentemente da idade dos hospedeiros. ABSTRACT - The study was carried out in MossorĂł, in the State of Rio Grande do Norte and had as objectives to identify morphometrical data from species of Eimeria genus, to determine occurrence and respective frequencies in young and adult animals, as well as to compare infection intensity in different species. Twenty ranches were visited and feces from 478 animals from both sexes were examined, being 218 under 12 months of age and 260 adults. Eimeria oocysts were found in all surveyed properties, infecting 92.47% of examined animals. Young goats were more affected (95.41%) and shed higher quantities of oocysts in feces than adult animals. Adults presented also high percentages of infection (90.00%). It was not observed any clinical symptoms in the animals. Nine species of Eimeria were identified, presenting the following percentages for young and adult animals, respectively: E. arloingi (37.75%, 42.22%), E. alijevi (14.15%, 10.85%), E. hirci (9.25%, 13.95%), E. jolchijevi (13.6%, 2.47%); E. caprina (7.55%, 8.31%), E. christensen (9.05%, 6.89%), E. caprovina (5.20%, 9.26%), E. ninakohlyakimovae (3.05%, 5.63%) and E. apsheronica (0.45%, 0.54%). E. arloingi was the most frequent species found independently of hosts age
Covariant path integral for chiral p-forms
The covariant path integral for chiral bosons obtained by McClain, Wu and Yu
is generalized to chiral p-forms. In order to handle the reducibility of the
gauge transformations associated with the chiral p-forms and with the new
variables (in infinite number) that must be added to eliminate the second class
constraints, the field-antifield formalism is used.Comment: revtex, 9 pages, submitted to Physical Review
Stellar populations in the ELT perspective
We discuss the impact that the next generation of Extremely Large Telescopes
will have on the open astrophysical problems of resolved stellar populations.
In particular, we address the interplay between multiband photometry and
spectroscopy.Comment: 6 pages, 3 figures. To appear in the proceedings of "EWASS 2013
Symposium 5: Local Group, Local Cosmology," (8-9 July 2013, Turku, Finland),
Mem. S.A.It, M. Monelli and S. Salvadori Ed
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