Electronic circuit implementation of chaos synchronization

In this paper, an electronic circuit implementation of a robustly chaotic two-dimensional map is presented. Two such electronic circuits are realized. One of the circuits is configured as the driver and the other circuit is configured as the driven system. Synchronization of chaos between the driver and the driven system is demonstrated

Long-distance entanglement and quantum teleportation in XX spin chains

Isotropic XX models of one-dimensional spin-1/2 chains are investigated with the aim to elucidate the formal structure and the physical properties that allow these systems to act as channels for long-distance, high-fidelity quantum teleportation. We introduce two types of models: I) open, dimerized XX chains, and II) open XX chains with small end bonds. For both models we obtain the exact expressions for the end-to-end correlations and the scaling of the energy gap with the length of the chain. We determine the end-to-end concurrence and show that model I) supports true long-distance entanglement at zero temperature, while model II) supports {\it ``quasi long-distance''} entanglement that slowly falls off with the size of the chain. Due to the different scalings of the gaps, respectively exponential for model I) and algebraic in model II), we demonstrate that the latter allows for efficient qubit teleportation with high fidelity in sufficiently long chains even at moderately low temperatures.Comment: 9 pages, 6 figure

Pesquisa com arroz de sequeiro no Estado do Acre.

Melhoramento: Introdução; Competição de cultivares de arroz de sequeiro. Rio Branco, 1976 e 1977/78; Introdução de cultivares de arroz de sequeiro. Rio Branco-Ac, 1977; Introdução e avaliação de cultivares de arroz. Rio Branco, 1979; Comportamento de cultivares e linhagens de arroz de sequeiro na microrregião Alto Purus-Acre. Rio Branco, 1978/79; Competição de cultivares internacionais de arroz. Rio Branco, 1978/79; Comportamento de cultivares de arroz irrigado sob regime de sequeiro favorecido. Rio Branco-Ac, 1980/81-1981/82; Avaliações preliminares de cultivares e linhagens de arroz de sequeiro. Rio Branco-Ac, 1982; Avaliações de genótipos de arroz de sequeiro em ensaios integrados. Rio Branco-Ac, 1980/81 - 1981/82; Publicações; Fitotecnia; Fitopatologia; Entomologia; Agradecimentos; Literatura consultada.bitstream/item/75595/1/CPAF-AC-DOC-3-84.pdfEditores: César Sabogal; José Natalino Macedo Silv

Estresse salino e hídrico na germinação e vigor do arroz.

O objetivo deste trabalho foi avaliar os efeitos do estresse salino provocado pelo cloreto de sódio (NaCI) e pelo sulfato de sódio (Na 2SO4), bem como os efeitos, do estresse hídrico induzido pelo polietileno glicol 6000 (PEG 6000) na germinação e vigor do arroz (Oryza saliva L.) cv. IAC 25. O potencial osrnótico das soluções variou de 0,0 a - 1,2 Megapascal (MPa). A germinação foi mais afetada pelos sais, enquanto que o PEG 6000 induziu grande redução na parte aérea. A germinação e o crescimento das plântulas foram mais afetados pelo Na 2SO4 e os sais tiveram ação mais tóxica do que osmótica, enquanto o PEG 6000 apresentou efeito exclusivamente osmótico. O potencial osmótico a - 0,8 MPa de NaCl ou Na2SO4 pode ser considerado crítico para a germinação e crescimento da cultivar IAC 25, ao passo que o PEG 6000 só foi altamente prejudicial a - 1,2 MPa

On Higher Derivatives as Constraints in Field Theory: a Geometric Perspective

We formalize geometrically the idea that the (de Donder) Hamiltonian formulation of a higher derivative Lagrangian field theory can be constructed understanding the latter as a first derivative theory subjected to constraints.Comment: 7 page

Efeitos do cloreto de sódio na germinação e vigor de plântulas de arroz.

Este trabalho teve como objetivo avaliar os efeitos delet&ios do NaU na germinação e vigor das cultivares de arroz (Oryza saliva L.) IAC-25, IAC-47, IAC-165, CNA-796019, Lebonnet, IRAT-112 e CICA-8. Amostras de sementes foram colocadas para germinar em solução de NaU com potenciais osmóticos de - 0,4 e - 0,8 Megapascal (MPa). As cultivares IAC-25 e IAC-47 foram consideradas tolerantes à salinidade atá - 0,4 MPa de NaCl; Lebonnet, CNA-796019 e CICA-8 foram consideradas moderadamente tolerantes; a IAC-165 e IRAT-112 pouco tolerantes. Entretanto, a -0,8 MPa, em que todo material foi severamente afetado pela salinidade, as cultivares IAC-25, IAC-47 e CNA-796019 foram as menos sensíveis. A cultivar IAC-25, de maneira geral, foi a mais tolerante à salinidade imposta e a IAC-165 foi a mais sensíve

Monte Carlo simulation of SU(2) Yang-Mills theory with light gluinos

In a numerical Monte Carlo simulation of SU(2) Yang-Mills theory with light dynamical gluinos the low energy features of the dynamics as confinement and bound state mass spectrum are investigated. The motivation is supersymmetry at vanishing gluino mass. The performance of the applied two-step multi-bosonic dynamical fermion algorithm is discussed.Comment: latex, 48 pages, 16 figures with epsfi

Phenomenology Tools on Cloud Infrastructures using OpenStack

We present a new environment for computations in particle physics phenomenology employing recent developments in cloud computing. On this environment users can create and manage "virtual" machines on which the phenomenology codes/tools can be deployed easily in an automated way. We analyze the performance of this environment based on "virtual" machines versus the utilization of "real" physical hardware. In this way we provide a qualitative result for the influence of the host operating system on the performance of a representative set of applications for phenomenology calculations.Comment: 25 pages, 12 figures; information on memory usage included, as well as minor modifications. Version to appear in EPJ

Anderson-Fabry disease: Ten-year outcome of enzyme replacement therapy in a renal transplant patient

Anderson‑Fabry disease (AFd) is a rare disorder characterised by the deficiency or absence of lysosomal enzymatic alpha‑galactosidase A activity (α‑Gal A) that leads to progressive and systemic accumulation of glycosphingolipids. The clinical manifestations are variable but kidney disease usually manifests before the fourth decade of life and chronic renal failure rapidly progresses to end‑stage renal disease (ESRD), requiring dialysis and kidney transplantation (KT). In patients with a definite diagnosis, enzyme replacement therapy (ERT) is recommended as soon as there are early clinical signs of kidney, heart or brain involvement. We present a case of a kidney transplant patient who was diagnosed with AFd nine years after KT, confirming the difficulty that may exist in na early diagnosis of this disease even among high‑risk groups. At this stage, in addition to renal damage, the patient already had advanced disease and established organ injury, including ocular, pulmonary, cerebrovascular and cardiac. He started agalsidase beta (Fabrazyme®) intravenously every two weeks at a dose of 1 mg/kg body weight. During ten years of treatment no major adverse events were reported and our experience indicates that ERT is a safe and effective treatment for extra‑renal Fabry manifestations in KT patientsinfo:eu-repo/semantics/publishedVersio

Factors associated with postharvest ripening heterogeneity of "Hass" avocados (Persea americana Mill)

Indexación: Web of ScienceIntroduction. 'Hass' is the main avocado cultivar commercialized worldwide. The extended flowering period, very low percentage of fruit set and inability to ripen on the tree renders the fruit heterogeneous and unpredictable during postharvest management. The "triggered" and "ready-to-eat" growing markets for 'Hass' avocados are affected by the variable postharvest ripening or ripening heterogeneity which creates severe logistical problems for marketers and inconsistent quality delivery to consumers. Synthesis. The dry matter content, the current avocado harvest index that correlates very well with oil content, has been extensively used to harvest 'Hass' avocados to comply with the minimum standards to guarantee consumer satisfaction. However, previous work and empirical experience demonstrate that dry matter does not correlate on a fruit-to-fruit basis with time to reach edible ripeness. Thus, avocados of very different ages are harvested from individual trees, resulting in heterogeneous postharvest ripening of fruit within a specific batch. Several preharvest factors related to environmental and growing conditions and crop management as well as postharvest technology strategies influence the observed variability of postharvest ripening. Conclusion. Modern approaches based on studying the composition of individual fruits displaying contrasting postharvest ripening behavior, combined with non-destructive phenotyping techniques, seem to offer practical solutions for the fresh supply chain of avocados to sort fruit based on their ripening capacity.http://www.pubhort.org/fruits/2016/5/fruits160045.ht