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Search Results: 1 - 10 of 91864 matches for " Alessandra I.;Sano "
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Detec??o de plantios de Cannabis sativa no semiárido pernambucano a partir da análise das anomalias de dinamica temporal dos índices de vegeta??o derivados do satélite SPOT-5 HRG
Lisita, Alessandra;Sano, Edson Eyji;Durieux, Laurent;
Boletim de Ciências Geodésicas , 2013, DOI: 10.1590/S1982-21702013000100004
Abstract: cannabis sativa is the most highly demanded illegal drug in the world, even more than amphetamines, cocaine and opiates. in brazil, one of the strategies to reduce its consumption is the identification and destruction of cultivation. plantations are identified visually by experienced brazilian federal police agents using helicopters. this study analyzed the potential of the ndvi (normalized difference vegetation index) derived from temporal series of the spot-5 hrg (high resolution geometric) images to detect plantations of cannabis surrounded by the caatinga vegetation in the semi-arid region of pernambuco state. absolute values and multitemporal series of ndvi from two sites used to plant cannabis and from surrounding natural vegetation were analyzed to find anomalies related to the presence of such plantations. results showed a strong seasonality of caatinga phytophysiognomies and heterogeneous spectral pattern of cannabis sativa. in some cases, cannabis plantations presented growing patterns higher than the caatinga vegetation, as a consequence of water and fertilizer supplies; in other, an abrupt decrease of ndvi values, as a consequence of field management practices - soil preparation and harvesting - or destruction. the analysis of dynamics of ndvi allowed detecting cannabis cultivations from temporal series of spot-5 hrg.
Molecular phylogeny, morphology and their implications for the taxonomy of Eriocaulaceae
Giulietti, Ana M.;Andrade, Maria José G.;Scatena, Vera L.;Trovó, Marcelo;Coan, Alessandra I.;Sano, Paulo T.;Santos, Francisco A.R.;Borges, Ricardo L.B.;van den Berg, Cássio;
Rodriguésia , 2012, DOI: 10.1590/S2175-78602012000100001
Abstract: the pantropical family eriocaulaceae includes ten genera and c. 1,400 species, with diversity concentrated in the new world. the last complete revision of the family was published more than 100 years ago, and until recently the generic and infrageneric relationships were poorly resolved. however, a multi-disciplinary approach over the last 30 years, using morphological and anatomical characters, has been supplemented with additional data from palynology, chemistry, embryology, population genetics, cytology and, more recently, molecular phylogenetic studies. this led to a reassessment of phylogenetic relationships within the family. in this paper we present new data for the its and trnl-f regions, analysed separately and in combination, using maximum parsimony and bayesian inference. the data confirm previous results, and show that many characters traditionally used for differentiating and circumscribing the genera within the family are homoplasious. a new generic key with characters from various sources and reflecting the current taxonomic changes is presented.
Biological Activity of Lenalidomide and Its Underlying Therapeutic Effects in Multiple Myeloma
Roberta Martiniani,Valentina Di Loreto,Chiara Di Sano,Alessandra Lombardo,Anna Marina Liberati
Advances in Hematology , 2012, DOI: 10.1155/2012/842945
Abstract: Lenalidomide is a synthetic compound derived by modifying the chemical structure of thalidomide. It belongs to the second generation of immunomodulatory drugs (IMiDs) and possesses pleiotropic properties. Even if lenalidomide has been shown to be active in the treatment of several hematologic malignancies, this review article is mostly focalized on its mode of action in multiple myeloma. The present paper is about the direct and indirect antitumor effects of lenalidomide on malignant plasmacells, bone marrow microenvironment, bone resorption and host’s immune response. The molecular mechanisms and targets of lenalidomide remain largely unknown, but recent evidence shows cereblon (CRBN) as a possible mediator of its therapeutical effects. 1. Introduction Lenalidomide and pomalidomide are synthetic compounds derived by modifying the chemical structure of thalidomide [1]. In particular, as shown in Figure 1, lenalidomide has been synthesized from the structural bone of thalidomide molecule. Lenalidomide has been developed by adding an amino group (NH2–) at 4th position of phthaloyl ring and by removing the carbonyl group (C=O) of the 4-amino-substituted phthaloyl ring. This drug is the result of the pressing need to develop molecules with enhanced immunomodulatory and antitumor activity in comparison to thalidomide. Lenalidomide, which possesses pleiotropic properties, belongs to the second generation of immunomodulatory drugs (IMiDs). Figure 1: Lenalidomide and thalidomide structure. Lenalidomide and its parental molecule thalidomide have shown therapeutical activity in various malignancies [2–21]. The US Food and Drug Administration (FDA) first approved lenalidomide for the treatment of patients suffering from 5q-myelodysplastic syndrome [22]. However, because of the proven activity of thalidomide in multiple myeloma (MM), the clinical activity of lenalidomide has been evaluated more extensively in this neoplasia [7–12], in respect to other B-cell neoplasia. The favourable toxic profile of lenalidomide and its antitumor activity emerged from phase I and phase II studies in relapsed or refractory MM patients [23–25]. These encouraging results led to the design of two large, phase III, multinational, randomized, double-blind, placebo-controlled, registration trials (MM-009 in US and Canada and MM-010 in Europe, Australia, and Israel) in this setting of patients. In both studies, patients were randomly assigned to receive 25?mg of lenalidomide or placebo on days 1 to 21 of 28-day cycles plus dexamethasone (40?mg on days 1 to 4, 9 to 12 and 17 to 20 for the
Multiple scattering in a dense aerosol atmosphere
S. Mukai,T. Yokomae,I. Sano,M. Nakata
Atmospheric Measurement Techniques Discussions , 2012, DOI: 10.5194/amtd-5-881-2012
Abstract: This study was designed to develop an efficient algorithm to retrieve aerosol characteristics in aerosol events, which are associated with dense concentrations of aerosols in the atmosphere, such as a dust storm or a biomass burning plume. The idea of successive scattering of light is reviewed based on the theory of radiative transfer. Then derivation of the method of successive order of scattering (MSOS) is interpreted in detail, and it is shown that MSOS is available for a simulation scheme in the dense radiation field being used to retrieve aerosol properties in the event with the high optical thickness. Finally our algorithms are practically applied for the biomass burning aerosol event over the Amazon using Aqua/MODIS data.
Shakespeare translation in Japan: 1868—1998 Shakespeare translation in Japan: 1868—1998
Akiko Sano
Ilha do Desterro , 2008,
Abstract: Shakespeare was first introduced to Japan in the late nineteenth century, when the country opened its doors to other countries after the seclusion policy of over two hundred years. When the Meiji Restoration Government came into power in 1868, it decided to import the Western culture and technology in order to catch up with the developed countries. Japan’s overall contact with the Western world began. The country’s slogan then became “civilization and enlightenment”, which meant Westernization for “national wealth and military strength”. Shakespeare came to Japan together with other things from Britain during this age of Westernization. The translation of two English books were published in 1871 and 1872 to enlighten the youth of the new age. One was Samuel Smiles’ Self-Help (1859) and the other was John Stuart Mill’s On Liberty (1859). Both books acquired immediate popularity. The translator was Masanao Nakamura who was originally sent by the old Tokugawa Government to Britain to study English. Shakespeare was first introduced to Japan in the late nineteenth century, when the country opened its doors to other countries after the seclusion policy of over two hundred years. When the Meiji Restoration Government came into power in 1868, it decided to import the Western culture and technology in order to catch up with the developed countries. Japan’s overall contact with the Western world began. The country’s slogan then became “civilization and enlightenment”, which meant Westernization for “national wealth and military strength”. Shakespeare came to Japan together with other things from Britain during this age of Westernization. The translation of two English books were published in 1871 and 1872 to enlighten the youth of the new age. One was Samuel Smiles’ Self-Help (1859) and the other was John Stuart Mill’s On Liberty (1859). Both books acquired immediate popularity. The translator was Masanao Nakamura who was originally sent by the old Tokugawa Government to Britain to study English.
A possible phase diagram of a t-J ladder model
Kazuhiro Sano
Physics , 1996, DOI: 10.1143/JPSJ.65.1146
Abstract: We investigate a t-J ladder model by numerical diagonalization method. By calculating correlation functions and assuming the Luttinger liquid relation, we obtained a possible phase diagram of the ground state as a function of J/t and electron density $n$. We also found that behavior of correlation functions seems to consist with the prediction of Luttinger liquid relation. The result suggests that the superconducting phase appear in the region of $J/t \displaystyle{ \mathop{>}_{\sim}} 0.5$ for high electron density and $J/t \displaystyle{ \mathop{>}_{\sim}} 2.0$ for low electron density.
The Ashtekar Formalism and WKB Wave Functions of N=1,2 Supergravities
Takashi Sano
Physics , 1992,
Abstract: The N=1,2 supergravities with non-zero cosmological constants are investigated in the Ashtekar formalism. We solve the constraints of the N=1,2 supergravities semi-classically. The resulting WKB wave functions are expressed by exponentials of supersymmetric-extended SL(2,C) Chern-Simons functional.
Luttinger-liquid Parameter of Hubbard Chain and Hubbard Ladder
Kazuhiro Sano
Physics , 1999, DOI: 10.1143/JPSJ.69.1000
Abstract: We study the Luttinger-liquid parameter $K_{\rho}$ of the Hubbard chain and the Hubbard ladder models by the ordinary perturbation method combined with the Luttinger-liquid relation. According to the Luttinger-liquid relation, the critical exponent $K_{\rho}$ is related to the charge susceptibility $\chi_c$ and the Drude weight D by $ K\sb{\rho}={1/2}(\pi \chi_c D)^{1/2}$. By calculating these quantities with the perturbation method, we obtain $K_{\rho}$ at the first-order analytically and up to the second-order numerically. We compare these results with results of the Bethe ansatz for the Hubbard chain and that of the numerical diagonalization for the Hubbard ladder. It shows that the perturbation calculation of $K_{\rho}$ is reliable in the weak coupling regime.
Gorenstein and normal properties of the subregular variety of a variety of special lattices over Witt vectors
Akira Sano
Mathematics , 2005,
Abstract: We recall the projective variety parametrizing a family of special lattices over Witt vectors. It is normal and Gorenstein. In this article, we prove that there exists a particular set of subvarieties in it that are also normal and Gorenstein. The set contains the subregular variety.
The competition-common enemy graphs of digraphs satisfying Conditions $C(p)$ and $C'(p)$
Yoshio Sano
Mathematics , 2010,
Abstract: S. -R. Kim and F. S. Roberts (2002) introduced the following conditions $C(p)$ and $C'(p)$ for digraphs as generalizations of the condition for digraphs to be semiorders. The condition $C(p)$ (resp. $C'(p)$) is: For any set $S$ of $p$ vertices in $D$, there exists $x \in S$ such that $N^+_D(x) \subseteq N^+_D(y)$ (resp. $N^-_D(x) \subseteq N^-_D(y)$) for all $y \in S$, where $N^+_D(x)$ (resp. $N^-_D(x)$) is the set of out-neighbors (resp. in-neighbors) of $x$ in $D$. The competition graph of a digraph $D$ is the (simple undirected) graph which has the same vertex set as $D$ and has an edge between two distinct vertices $x$ and $y$ if $N^+_D(x) \cap N^+_D(y) \neq \emptyset$. Kim and Roberts characterized the competition graphs of digraphs which satisfy Condition $C(p)$. The competition-common enemy graph of a digraph $D$ is the graph which has the same vertex set as $D$ and has an edge between two distinct vertices $x$ and $y$ if it holds that both $N^+_D(x) \cap N^+_D(y) \neq \emptyset$ and $N^-_D(x) \cap N^-_D(y) \neq \emptyset$. In this note, we characterize the competition-common enemy graphs of digraphs satisfying Conditions $C(p)$ and $C'(p)$.
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