Ocorrencia de albatrellus ovinus no Brasil

Albatrellus ovinus (Schaeff ex Fr.) Kotb. & Puz. es descrito por primera vez en Brasil, en suelos baj

Testing for Multipartite Quantum Nonlocality Using Functional Bell Inequalities

We show that arbitrary functions of continuous variables, e.g. position and momentum, can be used to generate tests that distinguish quantum theory from local hidden variable theories. By optimising these functions, we obtain more robust violations of local causality than obtained previously. We analytically calculate the optimal function and include the effect of nonideal detectors and noise, revealing that optimized functional inequalities are resistant to standard forms of decoherence. These inequalities could allow a loophole-free Bell test with efficient homodyne detection

Associação de candida mogii com albatrellus ovinus

Por cinco años consecutivos fueron colectados especímenes de A. ovinus asociados a C. mogii

Interação enxerto e porta-enxerto na incidência da resinose do cajueiro.

Este estudo objetivou avaliar o efeito de combinações de clones de cajueiro-anão-precoce usados como enxerto e porta-enxerto na incidência da resinose

Fungos isolados do ar e do piso de ambientes fechados do Hospital escola da Universidade Federal de Pernambuco, Recife, Brasil – II leveduras

Del aire y del piso de ambientes cerrados del "Hospital das Clínicas da Universidade Federal de Pernambuco, Recife, Brasil”; fueron aisladas 82 muestras de levaduras de los generos Brettanomyces, Candida, Rhodotorula y Trichosporon; su mavor incidencia fue detectada en el piso y durante el periodo lluvios

Hongos asociados a semillas de tomate (lycopersicon esculentum)

Semillas de tomate (lycopersicon esculentum) colectadas en Camocin de Sao Felix-PE, Nordeste de Brasil. fueron examinadas con el objetivo de verificar la población fúngica. Las semillas fueron obtenidos de la Cooperativa local de agricultores (semillas tratadas), y directamente de tomates maduros (semillas no tratadas).Aspelgillus Penicillium y Chaetomium, fueron los géneros encontrados con mayor frecuencia, mientras los especies : Aspergillus restrictus, Penicillium steckii y Penicillium axalicum, las más dominantes.Ramichloridium, subulatum. Pithomyces y thielavia minuta fueron aisladas por primera vez en semillas de tomates

Hongos filamentosos aislados desde el suelo y el agua en la playa de Boa Viagem (Recife, Brasil)

Se investigó la presencia de hongos filamentosos en el suelo y en las aguas de la playa de Boa Viagem, Recife, Pernambuco, Brasil. Se aisló un total de 10.894 colonias de hongos pertenecientes a 49 géneros y 115 especies, mayoritariamente Deuteromycetes. Los géneros Aspergillus y Penicillium fueron los dominantes en ambos sustratos

Fungos isolados do ar e do piso de ambientes fechados do Hospital escola da Universidade federal de Pernambuco, Recife, Brasil – I

Del aire y del piso de ambientes confinados del "Hospital das Clínicas da Universidade Federal de Pernambuco, Recife, Brasil”; fueron aisladas 3.330 colonias de hongos correspondientes a 123 entidades taxonómicas pertenecientes en su mayorla a los Asco-Deuteromycotina (95,3%), estando los demás grupos escasamente representados Zigomycotina (5,6%); Basidiomycotina (0,8%) y Micelia sterilia (0,2%). No hubo diferencias significativas entre la cantidad de colonias aisladas durante los periodos de pluviosidad y verano. Observándose el mayor número de colonias en el piso más que en aquellas aisladas del aire atmosférico. Los géneros encontrados con mayor frecuencia fueron Aspergillus, Penicillium y Fusarium. Entre los Hyphomycetes aislados, 14 especies son referidas como agentes etiológicos de micosis

Dynamics of multipartite quantum correlations under decoherence

Quantum discord is an optimal resource for the quantification of classical and non-classical correlations as compared to other related measures. Geometric measure of quantum discord is another measure of quantum correlations. Recently, the geometric quantum discord for multipartite states has been introduced by Jianwei Xu [arxiv:quant/ph.1205.0330]. Motivated from the recent study [Ann. Phys. 327 (2012) 851] for the bipartite systems, I have investigated global quantum discord (QD) and geometric quantum discord (GQD) under the influence of external environments for different multipartite states. Werner-GHZ type three-qubit and six-qubit states are considered in inertial and non-inertial settings. The dynamics of QD and GQD is investigated under amplitude damping, phase damping, depolarizing and flipping channels. It is seen that the quantum discord vanishes for p>0.75 in case of three-qubit GHZ states and for p>0.5 for six qubit GHZ states. This implies that multipartite states are more fragile to decoherence for higher values of N. Surprisingly, a rapid sudden death of discord occurs in case of phase flip channel. However, for bit flip channel, no sudden death happens for the six-qubit states. On the other hand, depolarizing channel heavily influences the QD and GQD as compared to the amplitude damping channel. It means that the depolarizing channel has the most destructive influence on the discords for multipartite states. From the perspective of accelerated observers, it is seen that effect of environment on QD and GQD is much stronger than that of the acceleration of non-inertial frames. The degradation of QD and GQD happens due to Unruh effect. Furthermore, QD exhibits more robustness than GQD when the multipartite systems are exposed to environment.Comment: 15 pages, 4 figures, 4 table

Entanglement and nonlocality in multi-particle systems

Entanglement, the Einstein-Podolsky-Rosen (EPR) paradox and Bell's failure of local-hidden-variable (LHV) theories are three historically famous forms of "quantum nonlocality". We give experimental criteria for these three forms of nonlocality in multi-particle systems, with the aim of better understanding the transition from microscopic to macroscopic nonlocality. We examine the nonlocality of N separated spin J systems. First, we obtain multipartite Bell inequalities that address the correlation between spin values measured at each site, and then we review spin squeezing inequalities that address the degree of reduction in the variance of collective spins. The latter have been particularly useful as a tool for investigating entanglement in Bose-Einstein condensates (BEC). We present solutions for two topical quantum states: multi-qubit Greenberger-Horne-Zeilinger (GHZ) states, and the ground state of a two-well BEC