Role of transverse-momentum currents in the optical Magnus effect in free space

OpenAIRE

Luo, Hailu; Wen, Shuangchun; Shu, Weixing; Fan, Dianyuan

2010-01-01

We establish a general vector field model to describe the role of transverse-momentum currents in the optical Magnus effect in free space. As an analogy of the mechanical Magnus effect, the circularly polarized wave packet in our model acts as the rotating ball, and its rotation direction depends on the polarization state. Based on this model, we demonstrate the existence of an optical polarization-dependent Magnus effect which is significantly different from the conventional optical Magnus e...

Magnus Riias, pisaraga / Kristi Leppik

Index Scriptorium Estoniae

Leppik, Kristi

2008-01-01

Kadri Kõusaare Cannes'i programmis esilinastunud debüütfilmi "Magnus" esilinastuselt Läti väärtfilmikinos Cinema Riga, kus kohal olid režissöör. Filmi Eestis näitamise keelamise problemaatikast

The potentialities of the wind driven engines with Magnus effect

International Nuclear Information System (INIS)

Bychkov, N.M.; Gorelov, V.P.; Gorelov, S.V.; Kachanov, A.N.

1999-01-01

Possibilities of wind engine realizing of Magnus effect like of untraditional kind energy source is shown in the article. In this engine instead of traditional propellers the rotatable cylinders are installed. According interaction of the cylinders with wind the Magnus force arises. Magnus force exceeds propellers rise force in 5-10 times and maintain very large turning moment of wind wheel and most effective operation of engine, especially at low wind rates. Advantage of the engine consists in that it switch on under wind rate 1 m/c, when for propeller one requires 4-5 m/c

Apparent culture-negative prosthetic valve endocarditis caused by Peptostreptococcus magnus

NARCIS (Netherlands)

van der Vorm, E. R.; Dondorp, A. M.; van Ketel, R. J.; Dankert, J.

2000-01-01

In two patients with prosthetic valve endocarditis due to Peptostreptococcus magnus, blood cultures in the BacT/Alert and BACTEC 9240 systems were signal negative. The capability of the BacT/Alert system to detect various Peptostreptococcus species was assessed. P. magnus and P. anaerobius could not

Magnus expansion for laser-matter interaction: Application to generic few-cycle laser pulses

DEFF Research Database (Denmark)

Klaiber, Michael; Dimitrovski, Darko; Briggs, John S.

2009-01-01

We treat the interaction of an atom with a short intense few-cycle laser pulse by the use of the Magnus expansion of the time-evolution operator. Terms of the Magnus expansion up to the third order in the pulse duration are evaluated explicitly, and expressions for the transition probability...... of the Magnus approximation are in excellent agreement with time-dependent transition probabilities obtained from accurate ab initio numerical calculations. However, the limitation of the Magnus expansion for pulses having both vanishing momentum and position shifts is demonstrated also....

Role of transverse-momentum currents in the optical Magnus effect in free space

International Nuclear Information System (INIS)

Luo Hailu; Wen Shuangchun; Shu Weixing; Fan Dianyuan

2010-01-01

We establish a general vector field model to describe the role of transverse-momentum currents in the optical Magnus effect in free space. As an analogy of the mechanical Magnus effect, the circularly polarized wave packet in our model acts as the rotating ball, and its rotation direction depends on the polarization state. Based on this model, we demonstrate the existence of an optical polarization-dependent Magnus effect which is significantly different from the conventional optical Magnus effect in that light-matter interaction is not required. Further, we reveal the relation between transverse-momentum currents and the optical Magnus effect, and find that such a polarization-dependent rotation is unavoidable when the wave packet possesses transverse-momentum currents. The physics underlying this intriguing effect is the combined contributions of transverse spin and orbital currents. We predict that this effect may be observed experimentally even in the propagation direction. These findings provide further evidence for the optical Magnus effect in free space and can be extrapolated to other physical systems.

Olivier Caïra, Jeux de rôle. Les forges de la fiction

Directory of Open Access Journals (Sweden)

Antoine Dauphragne

2010-06-01

Full Text Available Les forges de la fiction, d’Olivier Caïra, est à ranger parmi les rares ouvrages francophones en sciences humaines s’attachant au jeu de rôles. L’ouvrage en propose une analyse fine et dynamique centrée sur la pratique des joueurs. La démarche annoncée, qui entend proposer un texte accessible aussi bien aux rôlistes qu’aux universitaires, semble renvoyer autant à un souci de clarté qu’au profil de l’auteur. Olivier Caïra est sociologue ; ses travaux portent sur l’industrie du divertissement e...

Hääletu alistumise kaja / Magnus Ilmjärv ; intervjueerinud Andres Adamson

Index Scriptorium Estoniae

Ilmjärv, Magnus, 1961-

2010-01-01

Ilmunud on ajaloolase, Tallinna Ülikooli Ajaloo Instituudi direktori Magnus Ilmjärve uurimuse "Hääletu alistumine" täiendatud uustrükk. Vestlus Magnus Ilmjärvega uurimuses käsitletud teemadest

Magnus-induced ratchet effects for skyrmions interacting with asymmetric substrates

Science.gov (United States)

Reichhardt, C.; Ray, D.; Olson Reichhardt, C. J.

2015-07-01

We show using numerical simulations that pronounced ratchet effects can occur for ac driven skyrmions moving over asymmetric quasi-one-dimensional substrates. We find a new type of ratchet effect called a Magnus-induced transverse ratchet that arises when the ac driving force is applied perpendicular rather than parallel to the asymmetry direction of the substrate. This transverse ratchet effect only occurs when the Magnus term is finite, and the threshold ac amplitude needed to induce it decreases as the Magnus term becomes more prominent. Ratcheting skyrmions follow ordered orbits in which the net displacement parallel to the substrate asymmetry direction is quantized. Skyrmion ratchets represent a new ac current-based method for controlling skyrmion positions and motion for spintronic applications.

The dating of the fourth volume of Guillaume-Antoine Olivier's "Entomologie, ou histoire naturelle des insectes".

Science.gov (United States)

Bousquet, Yves

2018-01-01

Despite the title page is dated 1795, the fourth volume of Olivier's Entomologie, ou histoire naturelle des insectes was issued in two parts, one probably in 1795 and the second in 1800. All new taxa made available in this work have previously been dated 1795 in the literature. A list of new species described in 1795 and a list of those that have to be dated 1800 are appended. The genus Necrobia should be credited to Latreille, 1797, not Olivier, 1795.

Origin of the Magnus force on a vortex in fermion superfluids and superconductors

International Nuclear Information System (INIS)

Simanek, E.

1995-01-01

Starting from the time-dependent version of the Feynman-Hellmann theorem, the Magnus force acting on a vortex in fermion superfluid is expressed via the adiabatic curvature over the space of vortex positions. With use of the Bogoliubov--de Gennes approximation, the Magnus force in a homogeneous superfluid at T=0 is shown to originate from virtual transitions between the lowest quasiparticle core bound states. Nonadiabatic corrections to the curvature are obtained to second order in vortex velocity. The adiabatic approximation is shown to break down at a critical velocity equal to the vortex velocity in the first Landau level. The effect of elastic scattering on the Magnus force is discussed in terms of the relaxation-time approximation. It is suggested that this approximation is appropriate only for a large-scale vortex motion. In this case, the effective Magnus force is drastically reduced when the elastic-scattering rate exceeds the core excitation frequency. We conjecture that quantum vortex tunneling is governed by a local Magnus force obtained from the Berry phase approach

"Magnus" lummas Riia vaatajaid / Kristi Leppik

Index Scriptorium Estoniae

Leppik, Kristi

2008-01-01

Kadri Kõusaare Cannes'i programmis esilinastunud debüütfilmi "Magnus" esilinastuselt Läti väärtfilmikinos Cinema Riga, kus kohal olid režissöör ning peaosatäitja Kristjan Kasearu. Lisatud Meelis Muhu "Arvamus"

Magnus force in discrete and continuous two-dimensional superfluids

International Nuclear Information System (INIS)

Gecse, Z.; Khlebnikov, S.

2005-01-01

Motion of vortices in two-dimensional superfluids in the classical limit is studied by solving the Gross-Pitaevskii equation numerically on a uniform lattice. We find that, in the presence of a superflow directed along one of the main lattice periods, vortices move with the superflow on fine lattices but perpendicular to it on coarse ones. We interpret this result as a transition from the full Magnus force in a Galilean-invariant limit to vanishing effective Magnus force in a discrete system, in agreement with the existing experiments on vortex motion in Josephson junction arrays

On the inverse Magnus effect in free molecular flow

Science.gov (United States)

Weidman, Patrick D.; Herczynski, Andrzej

2004-02-01

A Newton-inspired particle interaction model is introduced to compute the sideways force on spinning projectiles translating through a rarefied gas. The simple model reproduces the inverse Magnus force on a sphere reported by Borg, Söderholm and Essén [Phys. Fluids 15, 736 (2003)] using probability theory. Further analyses given for cylinders and parallelepipeds of rectangular and regular polygon section point to a universal law for this class of geometric shapes: when the inverse Magnus force is steady, it is proportional to one-half the mass M of gas displaced by the body.

Magnus air turbine system

Science.gov (United States)

Hanson, Thomas F.

1982-01-01

A Magnus effect windmill for generating electrical power is disclosed. A large nacelle-hub mounted pivotally (in Azimuth) atop a support tower carries, in the example disclosed, three elongated barrels arranged in a vertical plane and extending symmetrically radially outwardly from the nacelle. The system provides spin energy to the barrels by internal mechanical coupling in the proper sense to cause, in reaction to an incident wind, a rotational torque of a predetermined sense on the hub. The rotating hub carries a set of power take-off rollers which ride on a stationary circular track in the nacelle. Shafts carry the power, given to the rollers by the wind driven hub, to a central collector or accumulator gear assembly whose output is divided to drive the spin mechanism for the Magnus barrels and the main electric generator. A planetary gear assembly is interposed between the collector gears and the spin mechanism functioning as a differential which is also connected to an auxiliary electric motor whereby power to the spin mechanism may selectively be provided by the motor. Generally, the motor provides initial spin to the barrels for start-up after which the motor is braked and the spin mechanism is driven as though by a fixed ratio coupling from the rotor hub. During high wind or other unusual conditions, the auxiliary motor may be unbraked and excess spin power may be used to operate the motor as a generator of additional electrical output. Interposed between the collector gears of the rotating hub and the main electric generator is a novel variable speed drive-fly wheel system which is driven by the variable speed of the wind driven rotor and which, in turn, drives the main electric generator at constant angular speed. Reference is made to the complete specification for disclosure of other novel aspects of the system such as, for example, the aerodynamic and structural aspects of the novel Magnus barrels as well as novel gearing and other power coupling

Teadlase eetika / Magnus Ilmjärv

Index Scriptorium Estoniae

Ilmjärv, Magnus, 1961-

2008-01-01

Vastukaja art.: Valge, Jaak. Pätsi riigipööret ei inspireeritud väljastpoolt // Postimees (2008) 26. apr., lk. 13. President Konstantin Pätsi kohta leitud uutest arhiivimaterjalidest. Raamatu "Hääletu alistumine" autor, ajaloolane Magnus Ilmjärv peab Jaak Valge kriitikat tema suhtes põhjendamatult suureks

Calculation of transitions in intense laser fields with the Magnus expansion

International Nuclear Information System (INIS)

Campos, D.; Krueger, H.

1975-01-01

For bound quantum systems in presence of strong long wavelength electromagnetic fields the time evolution operator is calculated by application of the Magnus expansion in the interaction picture. We find that the first two orders of the Magnus expansion of the interaction picture time evolution operator contain both the momentum-translation transform of H.R. Reiss and terms which give rise to a non-static Stark-effect. (orig.) [de

Negative Magnus lift on a rotating sphere at around the critical Reynolds number

Science.gov (United States)

Muto, Masaya; Tsubokura, Makoto; Oshima, Nobuyuki

2012-01-01

Negative Magnus lift acting on a sphere rotating about the axis perpendicular to an incoming flow was investigated using large-eddy simulation at three Reynolds numbers of 1.0 × 104, 2.0 × 105, and 1.14 × 106. The numerical methods used were first validated on a non-rotating sphere, and the spatial resolution around the sphere was determined so as to reproduce the laminar separation, reattachment, and turbulent transition of the boundary layer observed in the vicinity of the critical Reynolds number. The rotating sphere exhibited a positive or negative Magnus effect depending on the Reynolds number and the imposed rotating speed. At Reynolds numbers in the subcritical or supercritical regimes, the direction of the Magnus lift force was independent of the rotational speed. In contrast, the lift force was negative in the critical regime when particular rotating speeds were imposed. This negative Magnus effect was investigated in the context of suppression or promotion of boundary layer transition around the separation point.

Comparison among Magnus/Floquet/Fer expansion schemes in solid-state NMR

Science.gov (United States)

Takegoshi, K.; Miyazawa, Norihiro; Sharma, Kshama; Madhu, P. K.

2015-04-01

We here revisit expansion schemes used in nuclear magnetic resonance (NMR) for the calculation of effective Hamiltonians and propagators, namely, Magnus, Floquet, and Fer expansions. While all the expansion schemes are powerful methods there are subtle differences among them. To understand the differences, we performed explicit calculation for heteronuclear dipolar decoupling, cross-polarization, and rotary-resonance experiments in solid-state NMR. As the propagator from the Fer expansion takes the form of a product of sub-propagators, it enables us to appreciate effects of time-evolution under Hamiltonians with different orders separately. While 0th-order average Hamiltonian is the same for the three expansion schemes with the three cases examined, there is a case that the 2nd-order term for the Magnus/Floquet expansion is different from that obtained with the Fer expansion. The difference arises due to the separation of the 0th-order term in the Fer expansion. The separation enables us to appreciate time-evolution under the 0th-order average Hamiltonian, however, for that purpose, we use a so-called left-running Fer expansion. Comparison between the left-running Fer expansion and the Magnus expansion indicates that the sign of the odd orders in Magnus may better be reversed if one would like to consider its effect in order.

Comparison among Magnus/Floquet/Fer expansion schemes in solid-state NMR

International Nuclear Information System (INIS)

Takegoshi, K.; Miyazawa, Norihiro; Sharma, Kshama; Madhu, P. K.

2015-01-01

We here revisit expansion schemes used in nuclear magnetic resonance (NMR) for the calculation of effective Hamiltonians and propagators, namely, Magnus, Floquet, and Fer expansions. While all the expansion schemes are powerful methods there are subtle differences among them. To understand the differences, we performed explicit calculation for heteronuclear dipolar decoupling, cross-polarization, and rotary-resonance experiments in solid-state NMR. As the propagator from the Fer expansion takes the form of a product of sub-propagators, it enables us to appreciate effects of time-evolution under Hamiltonians with different orders separately. While 0th-order average Hamiltonian is the same for the three expansion schemes with the three cases examined, there is a case that the 2nd-order term for the Magnus/Floquet expansion is different from that obtained with the Fer expansion. The difference arises due to the separation of the 0th-order term in the Fer expansion. The separation enables us to appreciate time-evolution under the 0th-order average Hamiltonian, however, for that purpose, we use a so-called left-running Fer expansion. Comparison between the left-running Fer expansion and the Magnus expansion indicates that the sign of the odd orders in Magnus may better be reversed if one would like to consider its effect in order

Comparison among Magnus/Floquet/Fer expansion schemes in solid-state NMR

Energy Technology Data Exchange (ETDEWEB)

Takegoshi, K., E-mail: takeyan@kuchem.kyoto-u.ac.jp; Miyazawa, Norihiro [Division of Chemistry, Graduate School of Science, Kyoto University, 606-8502 Kyoto (Japan); Sharma, Kshama [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500 075 (India); Madhu, P. K. [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500 075 (India); Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005 (India)

2015-04-07

We here revisit expansion schemes used in nuclear magnetic resonance (NMR) for the calculation of effective Hamiltonians and propagators, namely, Magnus, Floquet, and Fer expansions. While all the expansion schemes are powerful methods there are subtle differences among them. To understand the differences, we performed explicit calculation for heteronuclear dipolar decoupling, cross-polarization, and rotary-resonance experiments in solid-state NMR. As the propagator from the Fer expansion takes the form of a product of sub-propagators, it enables us to appreciate effects of time-evolution under Hamiltonians with different orders separately. While 0th-order average Hamiltonian is the same for the three expansion schemes with the three cases examined, there is a case that the 2nd-order term for the Magnus/Floquet expansion is different from that obtained with the Fer expansion. The difference arises due to the separation of the 0th-order term in the Fer expansion. The separation enables us to appreciate time-evolution under the 0th-order average Hamiltonian, however, for that purpose, we use a so-called left-running Fer expansion. Comparison between the left-running Fer expansion and the Magnus expansion indicates that the sign of the odd orders in Magnus may better be reversed if one would like to consider its effect in order.

Take Control of Fonts in Leopard

CERN Document Server

Zardetto, Sharon

2009-01-01

Install, organize, and use fonts with ease in Leopard! In this essential ebook, long-time Mac author Sharon Zardetto reveals all the details about how fonts work in Mac OS X 10.5 Leopard. She explains what folders your fonts reside in, in what order they load, and how to deal with font duplication. You'll also learn the ins and outs of different font installation methods; how to use Font Book to manage, validate, and organize fonts; how to make the most of character-rich Unicode fonts; and more. Whether you work in a font-intensive profession, use Unicode fonts for non-Roman languages, or wa

Three-dimensional magnetic engineering: The programs MAGNUS and EPILOG

International Nuclear Information System (INIS)

Fan Mingwu; Pissanetzky, S.

1988-01-01

We present the post-processor EPILOG for the well established finite element program MAGNUS for three-dimensional magnetic engineering. MAGNUS solves problems of magnetostastics with nonlinear magnetic materials, permanent magnets and electric currents, for any 3-D geometry. The two-scalar-potentials formulation of magnetostatics used by MAGNUS combines numerical accuracy and computational efficiency, and is considered state of the art. The well known program KUBIK is used as a pre-processor to describe the geometry and finite element mesh. KUBIK is highly interactive and allows the user to effectively control all geometric details. The needs of magnetic engineers, however, go far beyond the simple availability of a mathematical solution. Once the solution has been obtained by MAGNUS in the form of a continuous magnetic scalar potential function defined at every point in the solution domain, those needs are met by EPILOG. EPILOG is command operated. Commands are independent of each other and can be used in any order, or not used at all. The purpose of each command is to use the solution for the calculation of a derived quantity or the production of a plot or table. The following derived quantities can be obtained: The magnetic energy in specific regions, the magnetic force on specified conductors in space, the magnetic torque in specified conductors, the magnetic flux across a given surface in space, the inductance of a circuit, and a variety of line integrals for specified lines in space. A useful facility is the automatic calculation of harmonic multipoles averaged along the beam direction for accelerator magnets, essential for end analysis and the integral effect of the magnetic field on the beam. (orig./BBOE)

Magnus Georg von Paucker (1787-1855) / Eckhard Spring

Index Scriptorium Estoniae

Spring, Eckhard

2013-01-01

Eestis sündinud ja Tartu Ülikoolis õppinud silmapaistvast baltisaksa teadlasest ja tema lapselapsest Alexandrine Pauckerist. 23. novembril 2012 Jelgavas/Mitaus toimunud Magnus Georg von Pauckerile pühendatud teaduskonverentsist

Anisotropic Magnus Force in Type-II Superconductors with Planar Defects

Science.gov (United States)

Monroy, Ricardo Vega; Gomez, Eliceo Cortés

2015-02-01

The effect of planar defects on the Magnus force in type-II superconductors is studied. It is shown that the deformation of the vortex due to the presence of a planar defect leads to a local decrease in the mean free path of electrons in the vortex. This effect reduces the effective Magnus coefficient in normal direction to the planar defect, leading to an anisotropic regime of the Hall effect. The presented developments here can qualitatively explain experimental observations of the anisotropic Hall effect in high- T c superconductors in the mixed state.

Magnus force and inertia properties of magnetic vortices in weak ferromagnets

International Nuclear Information System (INIS)

Zvezdin, A.K.; Zvezdin, K.A.

2010-01-01

The question of the Magnus force in weak ferromagnets acting on magnetic vortices (Bloch lines), within domain boundary has been investigated and the general formula of the Magnus force has been derived. It is shown that the Magnus force is non-zero in most types domain boundaries and determined by the average sublattice magnetization, Dzyaloshinskii coupling constants and exchange interaction between the sublattices. Generalized expressions have been obtained for the effective Langrangian and Rayleigh functions in weak ferromagnets allowing for their vortex structure. The mass of a vortex was considered and the value m * ∼ 10 -14 g/cm was obtained for YFeO 3 . The dynamic bending of the domain boundary in the presence of a moving vortex has been analyzed. A formula has been obtained, which describes the dependence of the vortex velocity in a motionless domain boundary upon the magnetic-field.

Negative Magnus Effect on a Rotating Sphere at around the Critical Reynolds Number

International Nuclear Information System (INIS)

Muto, Masaya; Watanabe, Hiroaki; Tsubokura, Makoto; Oshima, Nobuyuki

2011-01-01

Negative Magnus lift acting on a sphere rotating about the axis perpendicular to an incoming flow is investigated using large-eddy simulation at three Reynolds numbers of 1.0× 10 4 , 2.0 × 10 5 , and 1.14 × 10 6 . The numerical methods adopted are first validated on a non-rotating sphere and the spatial resolution around the sphere is determined so as to reproduce the laminar separation, reattachment, and turbulent transition of the boundary layer observed at around the critical Reynolds number. In the rotating sphere, positive or negative Magnus effect is observed depending on the Reynolds number and the rotating speed imposed. At the Reynolds number in the subcritical or supercritical region, the direction of the lift force follows the Magnus effect to be independent of the rotational speed tested here. In contrast, negative lift is observed at the Reynolds number at the critical region when particular rotating speeds are imposed. The negative Magnus effect is discussed in the context of the suppression or promotion of boundary layer transition around the separation point.

FONT DISCRIMINATIO USING FRACTAL DIMENSIONS

Directory of Open Access Journals (Sweden)

S. Mozaffari

2014-09-01

Full Text Available One of the related problems of OCR systems is discrimination of fonts in machine printed document images. This task improves performance of general OCR systems. Proposed methods in this paper are based on various fractal dimensions for font discrimination. First, some predefined fractal dimensions were combined with directional methods to enhance font differentiation. Then, a novel fractal dimension was introduced in this paper for the first time. Our feature extraction methods which consider font recognition as texture identification are independent of document content. Experimental results on different pages written by several font types show that fractal geometry can overcome the complexities of font recognition problem.

A review of the Magnus effect in aeronautics

Science.gov (United States)

Seifert, Jost

2012-11-01

The Magnus effect is well-known for its influence on the flight path of a spinning ball. Besides ball games, the method of producing a lift force by spinning a body of revolution in cross-flow was not used in any kind of commercial application until the year 1924, when Anton Flettner invented and built the first rotor ship Buckau. This sailboat extracted its propulsive force from the airflow around two large rotating cylinders. It attracted attention wherever it was presented to the public and inspired scientists and engineers to use a rotating cylinder as a lifting device for aircraft. This article reviews the application of Magnus effect devices and concepts in aeronautics that have been investigated by various researchers and concludes with discussions on future challenges in their application.

Comparative numerical solutions of stiff Ordinary differential equations using magnus series expansion method

Directory of Open Access Journals (Sweden)

SURE KÖME

2014-12-01

Full Text Available In this paper, we investigated the effect of Magnus Series Expansion Method on homogeneous stiff ordinary differential equations with different stiffness ratios. A Magnus type integrator is used to obtain numerical solutions of two different examples of stiff problems and exact and approximate results are tabulated. Furthermore, absolute error graphics are demonstrated in detail.

Analgesia induced by morphine microinjected into the nucleus raphe magnus: effects on tonic pain.

Science.gov (United States)

Dualé, Christian; Sierralta, Fernando; Dallel, Radhouane

2007-07-01

One of the possible sites of action of the analgesic effect of morphine is the Nucleus Raphe Magnus, as morphine injected into this structure induces analgesia in transient pain models. In order to test if morphine in the Nucleus Raphe Magnus is also analgesic in a tonic pain model, 5 microg of morphine or saline (control) were microinjected into the Nucleus Raphe Magnus of the rat. Analgesic effects were assessed following nociceptive stimulation using transient heating of the tail (phasic pain) and subcutaneous orofacial injection of 1.5 % formalin (tonic pain). While morphine was strongly analgesic for the tail-flick response (p <0.0001 compared to control), analgesia on the response to formalin was also observed for both early (p = 0.007) and late responses (p = 0.02). However, the response to formalin was not completely blunted. These results suggest that the Nucleus Raphe Magnus is not the exclusive site of action of morphine-induced analgesia in clinical conditions.

Considerações sobre o reflexo tônico cervical de Magnus: De Kleijn Considerations about the Magnus: De Kleijn tonic neck reflex

Directory of Open Access Journals (Sweden)

Paulo Bearzoti

1997-01-01

Full Text Available O reflexo tônico cervical de Magnus - De Kleijn é analisado levando-se em conta as psicologias do desenvolvimento de Gesell, Spitz e Piaget. É considerada sua natureza filogenética, realçado o significado favorável de seu desaparecimento em torno do terceiro mês de vida e enfatizada sua participação no desenvolvimento da criança.The Magnus - De Kleijn's tonic neck reflex is analyzed concerning to the developmental psychologies of Gesell, Spitz and Piaget. It is considered its phylogenetic nature, it is taken into account its favorable disappearing about three months old and, it is made a great account of its participation in baby development.

A Pedagogical Approach to the Magnus Expansion

Science.gov (United States)

Blanes, S.; Casas, F.; Oteo, J. A.; Ros, J.

2010-01-01

Time-dependent perturbation theory as a tool to compute approximate solutions of the Schrodinger equation does not preserve unitarity. Here we present, in a simple way, how the "Magnus expansion" (also known as "exponential perturbation theory") provides such unitary approximate solutions. The purpose is to illustrate the importance and…

Filmipäevad lõpetas "Magnus" / Kristiina Davidjants

Index Scriptorium Estoniae

Davidjants, Kristiina, 1974-

2008-01-01

Eesti filmipäevadel Kinomajas autasustas Eesti Kinoliit aastapreemiaga Sulev Keeduse dokumentaalfilmi "Jonathan Austraaliast" ja noorte- ja tudengifilmi auhinna sai Vanalinna hariduskolleegiumi teatriklassi noorte film "Pablo ja Tiiu". Näidati ka kohtutõkendi alust Kadri Kõusaare filmi "Magnus"

Magnus force in superfluids and superconductors

International Nuclear Information System (INIS)

Sonin, E.B.

1997-01-01

The forces on the vortex, transverse to its velocity, are considered. In addition to the superfluid Magnus force from the condensate (superfluid component), there are transverse forces from thermal quasiparticles and external fields violating the Galilean invariance. The forces between quasiparticles and the vortex originate from interference of quasiparticles with trajectories on the left and on the right from the vortex like similar forces for electrons interacting with the thin magnetic-flux tube (the Aharonov-Bohm effect). These forces are derived for phonons from the equations of superfluid hydrodynamics, and for BCS quasiparticles from the Bogolyubov endash de Gennes equations. The effect of external fields breaking Galilean invariance is analyzed for vortices in the two-dimensional Josephson junction array. The symmetry analysis of the classical equations for the array shows that the total transverse force on the vortex vanishes. Therefore the Hall effect which is linear in the transverse force is absent also. This means that the Magnus force from the superfluid component exactly cancels with the transverse force from the external fields. The results of other approaches are also brought together for discussion. copyright 1997 The American Physical Society

Magnus approximation in neutrino oscillations

International Nuclear Information System (INIS)

Acero, Mario A; Aguilar-Arevalo, Alexis A; D'Olivo, J C

2011-01-01

Oscillations between active and sterile neutrinos remain as an open possibility to explain some anomalous experimental observations. In a four-neutrino (three active plus one sterile) mixing scheme, we use the Magnus expansion of the evolution operator to study the evolution of neutrino flavor amplitudes within the Earth. We apply this formalism to calculate the transition probabilities from active to sterile neutrinos with energies of the order of a few GeV, taking into account the matter effect for a varying terrestrial density.

3D accelerator magnet calculations using MAGNUS-3D

International Nuclear Information System (INIS)

Pissanetzky, S.; Miao, Y.

1989-01-01

The steady trend towards increased magnetic and geometric complexity in the design of accelerator magnets has caused a need for reliable 3D computer models and a better understanding of the behavior of magnetic system in three dimensions. The capabilities of the MAGNUS-3D family of programs are ideally suited to solve this class of problems and provide insight into 3D effects. MAGNUS-3D can solve any problem of magnetostatics involving permanent magnets, nonlinear ferromagnetic materials and electric conductors. MAGNUS-3D uses the finite element method and the two-scalar-potentials formulation of Maxwell's equations to obtain the solution, which can then be used interactively to obtain tables of field components at specific points or lines, plots of field lines, function graphs representing a field component plotted against a coordinate along any line in space (such as the beam line), and views of the conductors, the mesh and the magnetic bodies. The magnetic quantities that can be calculated include the force or torque on conductors or magnetic parts, the energy, the flux through a specified surface, line integrals of any field component along any line in space, and the average field or potential harmonic coefficients. We describe the programs with emphasis placed on their use for accelerator magnet design, and present an advanced example of actual calculations. (orig.)

Inverse Magnus force in free molecular flow

Science.gov (United States)

Herczynski, A.; Weidman, P.

2003-11-01

The sidewise force on a spinning sphere translating in a rarified gas is calculated assuming that the flow can be treated as a stream of free molecules. This approach was first introduced by Newton in his investigation of the drag force. While it is not fruitful at subsonic flows in normal conditions, it gives remarkably accurate results at hypersonic speeds. Here it is applied to the high Knudsen number flow over spinning spheres, cylinders, cubes and more generally any spinning parallelepiped. In all cases, the force is in the opposite direction to that of the classical Magnus effect in continuum flow. The simple calculation for a sphere reproduces the isothermal result obtained recently by Borg, et al. (Phys. Fluids, 15, 2003) using Maxwellian distribution functions. For any parallelepiped, including the cube, just like for the sphere and the cylinder, the force is shown to be steady. In each of these, the magnitude of the inverse Magnus force is proprtional to the product of the angular speed, translational speed, and the mas of the gas displaced by the object.

Kohtuasi peatas Kõusaare "Magnuse" tee ka Riias / Mari Kodres

Index Scriptorium Estoniae

Kodres, Mari

2008-01-01

Kadri Kõusaare debüütfilmi "Magnus" linastamine Läti väärtfilmikinos Cinema Riga lõpetati, kuna kino juhtkond koos filmi levitajaga otsustasid linastamist jätkata alles peale kohtuvaidluse lõppu

Magnus force on quantum Hall skyrmions and vortices

International Nuclear Information System (INIS)

Dhar, S.; Basu, B.; Bandyopadhyay, P.

2003-01-01

We have discussed here the Magnus force acting on the vortices and skyrmions in the quantum Hall systems. We have found that it is generated by the chirality of the system which is associated with the Berry phase and is same for both the cases

Computations of the Magnus effect for slender bodies in supersonic flow

Science.gov (United States)

Sturek, W. B.; Schiff, L. B.

1980-01-01

A recently reported Parabolized Navier-Stokes code has been employed to compute the supersonic flow field about spinning cone, ogive-cylinder, and boattailed bodies of revolution at moderate incidence. The computations were performed for flow conditions where extensive measurements for wall pressure, boundary layer velocity profiles and Magnus force had been obtained. Comparisons between the computational results and experiment indicate excellent agreement for angles of attack up to six degrees. The comparisons for Magnus effects show that the code accurately predicts the effects of body shape and Mach number for the selected models for Mach numbers in the range of 2-4.

"Magnus" - esimene tõeliselt skandaalne Eesti film / Kristiina Davidjants

Index Scriptorium Estoniae

Davidjants, Kristiina, 1974-

2008-01-01

Kadri Kõusaare filmi "Magnus" kohtuliku ärakeelamise valguses ka teistest Eesti filmidest, millel on olnud ekraanile tulekuga probleeme seoses neis kujutatud inimeste protestidega. Lisatud autori repliik "On Kõusaart tõesti vääriti mõistetud?"

Pharmacognostic studies of insect gall of Quercus infectoria Olivier (Fagaceae)

Institute of Scientific and Technical Information of China (English)

Savitri Shrestha; Vasuki Srinivas Kaushik; Ravi Shankara Birur Eshwarappa; Sundara Rajan Subaramaihha; Latha Muuaiah Ramanna; Dhananjaya Bhadrapura Lakkappa

2014-01-01

Objective:To study the detailed pharmacognostic profile of galls of Quercus infectoria Olivier (Q. infectoria olivier) (Fagaceae), an important medicinal plant used in the Indian system of medicine. Methods: Samples of galls of Q. infectoria were studied by macroscopical, microscopical, physiochemical, phytochemical, fluorescence analysis and othjer methods for standardization as recommended by WHO. Results:Macroscopically, the crude drug is globose with horny appearances on external surface (1.4-2.3 cm in length and 1-1.5 cm in diameter), with greyish-brown to brownish-black in colour externally and dark brown buff colored. Surface is smooth with numerous horny protuberances giving rough touch, and with unpleasant odour. Microscopically, a wide zone of radially elongated parenchyma cells between upper and lower epidermis were found. The vascular strands were present at all places and radially elongated sclerides touched the lower epidermis. In physico-chemical studies, the moisture, total ash, acid insoluble ash, alcohol soluble, water soluble, petroleum ether, chloroform extractive value and tannin content were found to be 2.790, 5.020, 0.110, 38.780, 41.210, 0.402, 1.590 and 49.200 percentage respectively. Preliminary phytochemical screening showed the presence of phenols, flavonoids, steroids, triterpenes, tannins, saponins and alkaloids. Conclusions:The results of the present study serve as a valuable source of information and provide suitable standards for identification of this medicinally important plant drug material for future investigations and applications.

Magnus approximation in the adiabatic picture

International Nuclear Information System (INIS)

Klarsfeld, S.; Oteo, J.A.

1991-01-01

A simple approximate nonperturbative method is described for treating time-dependent problems that works well in the intermediate regime far from both the sudden and the adiabatic limits. The method consists of applying the Magnus expansion after transforming to the adiabatic basis defined by the eigenstates of the instantaneous Hamiltonian. A few exactly soluble examples are considered in order to assess the domain of validity of the approximation. (author) 32 refs., 4 figs

Tõkestatud "Magnus" võitis kaks auhinda / Annika Koppel

Index Scriptorium Estoniae

Koppel, Annika

2008-01-01

Kadri Kõusaare film "Magnus" (produtsent Donal Fernandes) võitis Saksamaal "GoEasti" Ida- ja Kesk-Euroopa filmikunsti festivalil peapreemia Kuldse Liilia ja rahvusvahelise filmiajakirjanike ühingu preemia. Ka teistest filmidest : serblase Stefan Arsenijevici "Armastus ja teised kuriteod", ukrainlanna EVa Nejmani "Jõe ääres", venelase Aleksei Popogrebski "Lihtsad asjad"

Effects of single and combined applications of entomopathogenic fungi and nematodes against Rhynchophorus ferrugineus (Olivier)

Science.gov (United States)

This study was carried out to investigate the insecticidal properties of Beauveria bassiana and Metarhizium anisopliae, and Heterorhabditis bacteriophora Poinar for their virulence against 2nd, 4th and 6th instar larvae of Rhynchophorus ferrugineus (Olivier). Both fungi were either applied alone or ...

Take control of font problems in Leopard

CERN Document Server

Zardetto, Sharon

2009-01-01

Are you suffering from mysterious font problems using Microsoft Office, the Adobe Creative Suite, or other programs in Mac OS X Leopard? Help is at hand, with troubleshooting steps and real-world advice that help you solve problems fast. If you've experienced seemingly inexplicable trouble with characters displaying incorrectly, being unable to type a particular character, fonts missing from Font menus, Font Book crashing, or Character Palette misbehaving, turn to font expert Sharon Zardetto for help. Read this ebook to find the answers to questions such as: Where do fonts belong on my hard

Keelatud "Magnus" läheb täismajale / Tiit Tuumalu

Index Scriptorium Estoniae

Tuumalu, Tiit, 1971-

2008-01-01

Harju maakohtu poolt esinemiskeelu alla pandud K. Kõusaare mängufilmi "Magnus" näitamise kohta Kinoliidu poolt Eesti filmi päevadel. Ka loomeliitude poolt avalikkusele suunatud kirjast selles küsimuses

Scanning electron microscopy of the interaction between Cryptococcus magnus and Colletotrichum gloeosporioides on papaya fruit Microscopia eletrônica de varredura da interação entre Cryptococcus magnus e Colletotrichum gloeosporioides em frutos de mamão

Directory of Open Access Journals (Sweden)

Guy de Capdeville

2007-11-01

Full Text Available The objective of this work was to investigate possible modes of action of the yeast Cryptococcus magnus in controlling anthracnose (Colletotrichum gloeosporioides on post harvested papaya fruits. Scanning electron microscopy was used to analyze the effect of the yeast on inoculations done after harvest. Results showed that C. magnus is able to colonize wound surfaces much faster than the pathogen, outcompeting the later for space and probably for nutrients. In addition, C. magnus produces a flocculent matrix, which affects hyphae integrity. The competition for space and the production of substances that affect hyphae integrity are among the most important modes of action of this yeast.O objetivo deste trabalho foi investigar prováveis modos de ação da levedura Cryptococcus magnus, que resultam no controle da antracnose (Colletotrichum gloeosporioides em frutos de mamoeiro na póscolheita. A microscopia eletrônica de varredura foi utilizada para avaliar o efeito da levedura sobre inoculações realizadas após a colheita. Os resultados mostraram que C. magnus é capaz de colonizar a superfície de ferimentos nos frutos e vencer a competição por espaço e, provavelmente, por nutrientes. Além disso, C. magnus produz uma matriz de textura característica que afeta a integridade da hifa do patógeno. A competição por espaço e a produção de substâncias que afetam a integridade das hifas estão entre os mais importantes modos de ação desta levedura.

First occurrence of knight rock shrimp, Sicyonia lancifer (Olivier, 1811 (Decapoda: Sicyoniidae in the Mediterranean Sea.

Directory of Open Access Journals (Sweden)

A. PATANIA

2015-01-01

Full Text Available The occurrence of the non-native species Sicyonia lancifer  (Olivier, 1811 belonging to Sicyoniidae family is reported for the first time in the Mediterranean Sea. In the following  paper  the distinguishing features of the species are provided.

Magnus v Rige, i sljozõ na glazahh / Kristi Leppik

Index Scriptorium Estoniae

Leppik, Kristi

2008-01-01

Kadri Kõusaare Cannes'i programmis esilinastunud debüütfilmi "Magnus" esilinastuselt Läti väärtfilmikinos Cinema Riga, kus kohal olid režissöör. Filmi Eestis näitamise keelamise problemaatikast

Internal Magnus effects in superfluid 3He-A

International Nuclear Information System (INIS)

Salmelin, R.H.; Salomaa, M.M.; Mineev, V.P.

1989-01-01

Orbital angular momentum of the coherently aligned Cooper pairs in superfluid 3 He-A is encountered by an object immersed in the condensate. We evaluate the associated quasiparticle-scattering asymmetry experienced by a negative ion; this leads to a measureable, purely quantum-mechanical reactive force deflecting the ion's trajectory. Possible hydrodynamic Magnus effects are also discussed

Adductor magnus: An EMG investigation into proximal and distal portions and direction specific action.

Science.gov (United States)

Benn, Matthew L; Pizzari, Tania; Rath, Leanne; Tucker, Kylie; Semciw, Adam I

2018-05-01

Cadaveric studies indicate that adductor magnus is structurally partitioned into at least two regions. The aim of this study was to investigate the direction-specific actions of proximal and distal portions of adductor magnus, and in doing so determine if these segments have distinct functional roles. Fine-wire EMG electrodes were inserted into two portions of adductor magnus of 12 healthy young adults. Muscle activity was recorded during maximum voluntary isometric contractions (MVICs) across eight tests (hip flexion/extension, internal/external rotation, abduction, and adduction at 0°, 45°, and 90° hip flexion). Median activity within each action (normalized to peak) was compared between segments using repeated measures nonparametric tests (α = 0.05). An effect size (ES = z-score/√sample size) was calculated to determine the magnitude of difference between muscle segments. The relative contribution of each muscle segment differed significantly during internal rotation (P magnus has at least two functionally unique regions. Differences were most evident during rotation. The different direction-specific actions may imply that each segment performs separate roles in hip stability and movement. These findings may have implications on injury prevention and rehabilitation for adductor-related groin injuries, hamstring strain injury, and hip pathology. Clin. Anat. 31:535-543, 2018. © 2018 Wiley Periodicals, Inc. © 2018 Wiley Periodicals, Inc.

Curveballs in protoplanetary discs - the effect of the Magnus force on planet formation

Science.gov (United States)

Forbes, John C.

2015-10-01

Spinning planetesimals in a gaseous protoplanetary disc may experience a hydrodynamical force perpendicular to their relative velocities. We examine the effect this force has on the dynamics of these objects using analytical arguments based on a simple laminar disc model and numerical integrations of the equations of motion for individual grains. We focus in particular on metre-sized boulders traditionally expected to spiral in to the central star in as little as 100 years from 1 au We find that there are plausible scenarios in which this force extends the lifetime of these solids in the disc by a factor of several. More importantly the velocities induced by the Magnus force can prevent the formation of planetesimals via gravitational instability in the inner disc if the size of the dust particles is larger than of the order of 10 cm. We find that the fastest growing linear modes of the streaming instability may still grow despite the diffusive effect of the Magnus force, but it remains to be seen how the Magnus force will alter the non-linear evolution of these instabilities.

The "Magnus effect" - the principle of the Flettner rotor

Science.gov (United States)

Betz, A

1925-01-01

The phenomenon of the Magnus effect consists in the fact that a revolving body moving relatively to the surrounding fluid (air) is subjected not only to drag (i.e., a force acting in a direction opposite to that of the direction of motion), but also to a lift.

Kadri Kõusaare skandaalne film "Magnus" sai ka Riias sule sappa

Index Scriptorium Estoniae

2008-01-01

Kadri Kõusaare debüütfilmi "Magnus" linastamine Läti väärtfilmikinos Cinema Riga lõpetati, kuna kino juhtkonda ähvardati režissööri sõnul tema filmi näitamise keelustamist taotleva hageja advokaatide poolt

STUDY ABOUT MAGNUS EFFECT ON SPINNING CYLINDERS AND ITS USE ON MICRO AIR VEHICLES

OpenAIRE

Stafy, Victor ,; Neto, Aristeu S

2017-01-01

Abstract. It is described in this article a Magnus Effect research done on Magnus Effect on Spinning Cylinders and how the Drag and Lift varies as the Cylinder increase or decrease its tangential velocity, as other properties, vorticity and structures of the flow as well.The final objective of this study is to use a Spinning Cylinder, with success, instead of a wing as the component responsible for lift force on a Micro Air Vehicle, with this purpose in mind, some simulations were done in ...

Floquet-Magnus expansion for general N-coupled spins systems in magic-angle spinning nuclear magnetic resonance spectra

Science.gov (United States)

Mananga, Eugene Stephane; Charpentier, Thibault

2015-04-01

In this paper we present a theoretical perturbative approach for describing the NMR spectrum of strongly dipolar-coupled spin systems under fast magic-angle spinning. Our treatment is based on two approaches: the Floquet approach and the Floquet-Magnus expansion. The Floquet approach is well known in the NMR community as a perturbative approach to get analytical approximations. Numerical procedures are based on step-by-step numerical integration of the corresponding differential equations. The Floquet-Magnus expansion is a perturbative approach of the Floquet theory. Furthermore, we address the " γ -encoding" effect using the Floquet-Magnus expansion approach. We show that the average over " γ " angle can be performed for any Hamiltonian with γ symmetry.

Font generation of personal handwritten Chinese characters

Science.gov (United States)

Lin, Jeng-Wei; Wang, Chih-Yin; Ting, Chao-Lung; Chang, Ray-I.

2014-01-01

Today, digital multimedia messages have drawn more and more attention due to the great achievement of computer and network techniques. Nevertheless, text is still the most popular media for people to communicate with others. Many fonts have been developed so that product designers can choose unique fonts to demonstrate their idea gracefully. It is commonly believed that handwritings can reflect one's personality, emotion, feeling, education level, and so on. This is especially true in Chinese calligraphy. However, it is not easy for ordinary users to customize a font of their personal handwritings. In this study, we performed a process reengineering in font generation. We present a new method to create font in a batch mode. Rather than to create glyphs of characters one by one according to their codepoints, people create glyphs incrementally in an on-demand manner. A Java Implementation is developed to read a document image of user handwritten Chinese characters, and make a vector font of these handwritten Chinese characters. Preliminary experiment result shows that the proposed method can help ordinary users create their personal handwritten fonts easily and quickly.

The mycological legacy of Elias Magnus Fries

OpenAIRE

Petersen, Ronald H.; Knudsen, Henning

2015-01-01

The taxonomic concepts which originated with or were accepted by Elias Magnus Fries were presented during his lifetime in the printed word, illustrative depiction, and in collections of dried specimens. This body of work was welcomed by the mycological and botanical communities of his time: students and associates aided Fries and after his passing carried forward his taxonomic ideas. His legacy spawned a line of Swedish and Danish mycologists intent on perpetuating the Fries tradition: Hampus...

Allelopathic potential of populus euphratica olivier

International Nuclear Information System (INIS)

Sher, Z.; Hussain, F.; Ahmad, B.; Wahab, M.

2011-01-01

Populus euphratica Olivier is frequently cultivated deciduous tree in Pakistan on agricultural land for its shade, fodder, timber and fuel wood. A relatively reduced under storey is often observed below it. Therefore the present study was conducted to assess the allelopathic potential of Populus euphratica against some crop species. Plant material of Populus euphratica were collected from the agriculture fields of Lahor, District Swabi in 2008 and were dried at room temperature (258 deg. C-308 deg. C). Allelopathic studies conducted by using aqueous extracts from various parts including young leaves, mature leaves, bark, litter and mulching in various experiments invariably retarded the germination, plumule, radical growth, fresh and dry weight of Sorghum vulgare Perse, Setaria italica (L.) P. Beauv and Triticum aestivum L., in laboratory experiments. The aqueous extracts obtained after 48 h were more inhibitory than 24 h. Leaves were more toxic than bark. Litter and mulching experiments also proved to be inhibitory. It is suggested that the various assayed parts of Populus euphratica have strong allelopathic potential at least against the tested species. Further investigation is required to see its allelopathic behavior under field condition against its associated species and to identify the toxic principles. (author)

The Magnus-Rademaker Scientific Film Collection: Ethical Issues on Animal Experimentation (1908-1940).

Science.gov (United States)

Koehler, Peter J; Lameris, Bregt

2016-01-01

The Magnus-Rademaker scientific film collection (1908-1940) deals with the physiology of body posture by the equilibrium of reflex musculature contractions for which experimental studies were carried out with animals (e.g., labyrinthectomies, cerebellectomies, and brain stem sections) as well as observations done on patients. The films were made for demonstrations at congresses as well as educational objectives and film stills were published in their books. The purpose of the present study is to position these films and their makers within the contemporary discourse on ethical issues and animal rights in the Netherlands and the earlier international debates. Following an introduction on animal rights and antivivisection movements, we describe what Magnus and Rademaker thought about these issues. Their publications did not provide much information in this respect, probably reflecting their adherence to implicit ethical codes that did not need explicit mentioning in publications. Newspaper articles, however, revealed interesting information. Unnecessary suffering of an animal never found mercy in Magnus' opinion. The use of cinematography was expanded to the reduction of animal experimentation in student education, at least in the case of Rademaker, who in the 1930s was involved in a governmental committee for the regulation of vivisection and cooperated with the antivivisection movement. This resulted not only in a propaganda film for the movement but also in films that demonstrate physiological experiments for students with the purpose to avert repetition and to improve the teaching of experiments. We were able to identify the pertinent films in the Magnus-Rademaker film collection. The production of vivisection films with this purpose appears to have been common, as is shown in news messages in European medical journals of the period.

Chemical composition, larvicidal action, and adult repellency of Thymus magnus against Aedes albopictus.

Science.gov (United States)

Park, Young-Uk; Koo, Hyun-Na; Kim, Gil-Hah

2012-09-01

Thymus magnus, an endemic species, is found in the Republic of Korea. The volatile compounds extracted by SPME from T. magnus were investigated for their chemical composition and electrophysiological response against the Asian tiger mosquito, Aedes albopictus. The volatile compounds of T. magnus as determined by gas chromatography mass spectrometry were gamma-terpinene (33.0%), thymol (29.9%), beta-bisabolene (8.9%), p-cymene (8.3%), alpha-terpinene (5.0%), myrcene (4.7%), beta-caryophyllene (4.0%), alpha-thujene (2.7%), camphene (1.3%), carvacrol (1.2%), and alpha-pinene (1.1%). Among these candidates, thymol exhibited complete (100%) repellent activity against female Ae. albopictus, an effect that was confirmed through evaluating the electrophysiological response on the antenna of Ae. albopictus. The effectiveness of a binary 1:2 mixture of thymol and vanillin (0.05:0.1 microl per cm2) was found to be significantly more effective than thymol alone for a period of 120 min. In addition, thymol, alpha-terpinene, and carvacrol showed high larvicidal activity against on the third-stage larvae with LC50 values of 0.9 microl per 100 ml.

Instant HTML5 fonts and typography

CERN Document Server

Jaouher, K

2013-01-01

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Written as practical recipes, Instant HTML5 Fonts and Typography How-to will enable you to use custom fonts with outstanding effects.This book is great for both professional and amateur HTML and CSS developers who are looking to use fonts in order to enhance interface design. Familiarity with JavaScript is assumed.

[Local GABA-ergic modulation of serotonergic neuron activity in the nucleus raphe magnus].

Science.gov (United States)

Iniushkin, A N; Merkulova, N A; Orlova, A O; Iniushkina, E M

2009-07-01

In voltage-clamp experimental on slices of the rat brainstem the effects of 5-HT and GABA on serotonergic neurons of nucleus raphe magnus were investigated. Local applications of 5-HT induced an increase in IPCSs frequency and amplitude in 45% of serotonergic cells. The effect suppressed by the blocker of fast sodium channels tetradotoxin. Antagonist of GABA receptor gabazine blocked IPSCs in neurons both sensitive and non-sensitive to 5-HT action. Applications of GABA induced a membrane current (I(GABA)), which was completely blocked by gabazine. The data suggest self-control of the activity of serotonergic neurons in nucleus raphe magnus by negative feedback loop via local GABAergic interneurons.

Mängufilm "Magnus" sai kohtus kuulsaks ja Eestis keelatuks / Risto Berendson

Index Scriptorium Estoniae

Berendson, Risto, 1975-

2007-01-01

Cannes'i filmifestivali kavas "Un certain regard" on tänavu ka Kadri Kõusaare mängufilm "Magnus" : produtsent Donald Fernandes : Eesti (Vitamin K Film) - Suurbritannia (Donus Films Limited). Filmi levitamisõigusega seotud kohtumäärusest

Cinematografie van de neurowetenschap in Nederland: De Magnus-Rademaker collectie

Directory of Open Access Journals (Sweden)

P.J. Koehler

2013-10-01

Full Text Available Following a short introduction on medical photography and cinematography, we describe a recently discovered neurological film collection, the so called Magnus-Rademaker collection (1909-1940, earlier presumed to be lost. Rudolf Magnus was professor in pharmacology in Utrecht and Gysbertus Rademaker was professor in physiology and later in neurology in Leiden. At the time they performed experimental research on animals to the role of the labyrinth, the neck afferents and cerebellum in position and standing. Next to animals, they also filmed patients. As an example we discuss a film about a boy whose cerebellum had been largely removed because of a tumor. The case was discussed for the ‘Amsterdam Neurologists Society’ and reported upon in the Dutch journal of medicine (1940. The films were produced for educational, as well as for scientific purposes. the discovery of this collection contributes to a better understanding of the role that early cinematography played in science and medicine.

Sõnum Lapimaalt - "Magnus" on väärt film / Imbi Paju

Index Scriptorium Estoniae

Paju, Imbi, 1959-

2007-01-01

Sodankylä filmifestivalist, mille üllatuskülaliseks kutsus soome filmilegend Peter von Bagh 60. Cannes'i filmifestivalil esilinastunud mängufilmi "Magnus" režissööri Kadri Kõusaare. Film sai Sodankyläs hea vastuvõtu

The analysis of ink jet printed eco-font efficiency

Directory of Open Access Journals (Sweden)

Rastko Milošević

2016-07-01

Full Text Available Utilization of eco-font for office printing is one of sustainable, “green” printing concepts, which besides obvious economic benefits, as a result has a certain effect on environmental sustainability as well. The fundamental problem that this practice faces is decreased quality of text printed using eco-fonts comparing to those printed with regular fonts. The aim of this research is eco-font efficiency estimation, i.e. determination of toner usage reduction level of ink jet printed documents typed with this font type, as well as estimation of the extent humans perceive differences between text printed with eco-font and the one printed by its „non-eco“ equivalent. Combining instrumental measuring method and digital image analysis, it was found that this simple principle (eco-font utilization enables substantial toner usage reduction for an ink jet printing system, while visual test showed that visual experience of text printed using eco-font is sufficient. In addition, awareness of benefits that eco-font utilization brings, change users’ attitude towards eco-font quality.

Installing fonts in LaTeX a user's experience

NARCIS (Netherlands)

Hanssen, F.T.Y.

2003-01-01

This paper presents a user's experience with installing fonts for use in LaTeX. It will be shown that it is not hard to make a standard Type 1 font work, if you use modern font installation software for LaTeX. All the steps necessary to install the example fonts will be shown. The example fonts used

Born Broken: Fonts and Information Loss in Legacy Digital Documents

Directory of Open Access Journals (Sweden)

Geoffrey Brown

2011-03-01

Full Text Available For millions of legacy documents, correct rendering depends upon resources such as fonts that are not generally embedded within the document structure. Yet there is a significant risk of information loss due to missing or incorrectly substituted fonts. Large document collections depend on thousands of unique fonts not available on a common desktop workstation, which typically has between 100 and 200 fonts. Silent substitution of fonts, performed by applications such as Microsoft Office, can yield poorly rendered documents. In this paper we use a collection of 230,000 Word documents to assess the difficulty of matching font requirements with a database of fonts. We describe the identifying information contained in common font formats, font requirements stored in Word documents, the API provided by Windows to support font requests by applications, the documented substitution algorithms used by Windows when requested fonts are not available, and the ways in which support software might be used to control font substitution in a preservation environment.

Development of an experimental setup for analyzing the influence of Magnus effect on the performance of airfoil

Science.gov (United States)

Aktharuzzaman, Md; Sarker, Md. Samad; Safa, Wasiul; Sharah, Nahreen; Salam, Md. Abdus

2017-12-01

Magnus effect is a phenomenon where pressure difference is created according to Bernoulli's effect due to induced velocity changes caused by a rotating object in a fluid. Using this concept, the idea of delaying boundary layer separation on airfoil by providing moving surface boundary layer control has been developed. In order to analyze the influence of Magnus effect on the aerodynamic performance of an airfoil, there is no alternative of developing an experimental setup. This paper aims to develop such an experimental setup which will be capable of analyzing the influence of Magnus effect on both symmetric and asymmetric airfoils by placing a cylinder at the leading edge. To provide arrangements for a rotating cylinder at the leading edge of airfoil, necessary modifications and additions have been done in the test section of an AF100 subsonic wind tunnel.

Autorotation motions of a turbine coursed by the Magnus effect

Science.gov (United States)

Ishkhanyan, M. V.; Klimina, L. A.; Privalova, O. G.

2018-05-01

The motion of the turbine in the flow is studied. Each blade of the main turbine is represented by a Savonius rotor. Self-induced rotation of Savonius rotors produces the Magnus force that courses the rotation of the main turbine. Existence and stability of the self-induced rotation are discussed. Parametrical analysis is carried out.

Three-dimensional magnetic engineering: The programs magnus and epilog

Science.gov (United States)

Fan, Mingwu; Pissanetzky, Sergio

1988-10-01

We present the post-processor EPILOG for the well established finite element program MAGNUS for three-dimensional magnetic engineering. MAGNUS solves problems of magnetostatics with nonlinear magnetic materials, permanent magnets and electric currents, for any 3-D geometry. The two-scalar-potentials formulation of magnetostatics used by MAGNUS combines numerical accuracy and computational efficiency, and is considered state of the art. The well known program KUBIK is used as a pre-processor to describe the geometry and finite element mesh. KUBIK is highly interactive and allows the user to effectively control all geometric details. The needs of magnetic engineers, however, go far beyond the simple availability of a mathematical solution. Once the solution has been obtained by MAGNUS in the form of a continuous magnetic scalar potential function defined at every point in the solution domain, those needs are met by EPILOG. EPILOG is command operated. Commands are independent of each other and can be used in any order, or not used at all. The purpose of each command is to use the solution for the calculation of a derived quantity or the production of a plot or table. The following derived quantities can be obtained: the magnetic energy in specific regions, the magnetic force on specified conductors in space, the magnetic torque on specified conductors, the magnetic flux across a given surface in space, the inductance of a circuit, and a variety of line integrals for specified lines in space. A useful facility is the automatic calculation of harmonic multipoles averaged along the beam direction for accelerator magnets, essential for end analysis and the integral effect of the magnetic field on the beam. Graphical facilities include color plots of the shapes of the conductors, the geometry, field lines and surfaces of constant magnetic scalar potential in specified regions of space. EPILOG produces a device independent graphical metafile, which can be seen on any device

Magnus expansion and three-neutrino oscillations in matter

International Nuclear Information System (INIS)

Cabral-Rosetti, L G; Aguilar-Arevalo, A A; D'Olivo, J C

2006-01-01

We present a semi-analytical derivation of the survival probability of solar neutrinos in the three generation scheme, based on the Magnus approximation of the evolution operator of a three level system, and assuming a mass hierarchy among neutrino mass eigenstates. We have used an exponential profile for the solar electron density in our approximation. The different interesting density regions that appear throughout the propagation are analyzed. Finally, some comments on the allowed regions in the solar neutrino parameter space are addressed

Magnus expansion and three-neutrino oscillations in matter

Energy Technology Data Exchange (ETDEWEB)

Cabral-Rosetti, L G [Departamento de Posgrado, Centro Interdisciplinario de Investigacion y Docencia en Educacion Tecnica (CIIDET), Av. Universidad 282 Pte., Col. Centro, A. Postal 752, C.P. 76000, Santiago de Queretaro, Qro. (Mexico); Aguilar-Arevalo, A A [Instituto de Ciencias Nucleares, Departameto de Fisica de Altas EnergIas, Universidad Nacional Autonoma de Mexico (ICN-UNAM). Apartado Postal 70-543, 04510 Mexico, D. F. (Mexico); D' Olivo, J C [Instituto de Ciencias Nucleares, Departameto de Fisica de Altas EnergIas, Universidad Nacional Autonoma de Mexico (ICN-UNAM). Apartado Postal 70-543, 04510 Mexico, D. F. (Mexico)

2006-05-15

We present a semi-analytical derivation of the survival probability of solar neutrinos in the three generation scheme, based on the Magnus approximation of the evolution operator of a three level system, and assuming a mass hierarchy among neutrino mass eigenstates. We have used an exponential profile for the solar electron density in our approximation. The different interesting density regions that appear throughout the propagation are analyzed. Finally, some comments on the allowed regions in the solar neutrino parameter space are addressed.

Neurocinematography in Pre-World War II Netherlands: The Magnus-Rademaker Collection.

Science.gov (United States)

Koehler, Peter J; Lameris, Bregt; Hielscher, Eva

2016-01-01

Historical films made by neuroscientists have shown up in several countries during past years. Although originally supposed to have been lost, we recently found a collection of films produced between 1909 and 1940 by Rudolf Magnus (1873-1927), professor of pharmacology (Utrecht) and his student Gysbertus Rademaker (1887-1957), professor of physiology (1928, succeeding Willem Einthoven) and neurology (1945, both in Leiden). Both collections deal with the physiology of body posture by the equilibrium of reflex musculature contractions for which experimental studies were done with animals (labyrinthectomies, cerebellectomies, and brainstem sections) and observations on patients. The films demonstrate the results of these studies. Moreover, there are films with babies showing tonic neck reflexes and moving images capturing adults with cerebellar symptoms following cerebellectomies for tumors and several other conditions. Magnus' studies resulted in his well-known Körperstellung (1924, "Body Posture") and Rademaker's research in his Das Stehen (1931, "Standing"). The films probably had an educative and scientific purpose. Magnus demonstrated his films at congresses, including the Eighth International Congress of Physiologists (Vienna, 1910) and Rademaker screened his moving images at meetings of the Amsterdam Neurologists Society (at several occasions as reflected in the Winkler-Monakow correspondence and the Nederlands Tijdschrift voor Geneeskunde). Next to these purposes, the films were used to analyze movement and a series of images from the films were published in articles and books. The films are important historical sources that provide a portrait of the pre-World War II era in neuroscience, partly answering questions on how physicians dealt with patients and researchers with their laboratory animals. Moreover, the films confirm that cinematography was an important scientific tool in neuroscience research.

Designing legible fonts for distance reading

DEFF Research Database (Denmark)

Beier, Sofie

2016-01-01

This chapter reviews existing knowledge on distance legibility of fonts, and finds that for optimal distance reading, letters and numbers benefit from relative wide shapes, open inner counters and a large x-height; fonts should further be widely spaced, and the weight should not be too heavy or t...

The Magnus problem in Rodrigues-Hamilton parameters

Science.gov (United States)

Koshliakov, V. N.

1984-04-01

The formalism of Rodrigues-Hamilton parameters is applied to the Magnus problem related to the systematic drift of a gimbal-mounted astatic gyroscope due to the nutational vibration of the main axis of the rotor. It is shown that the use of the above formalism makes it possible to limit the analysis to a consideration of a linear system of differential equations written in perturbed values of Rodrigues-Hamilton parameters. A refined formula for the drift of the main axis of the gyroscope rotor is obtained, and an estimation is made of the effect of the truncation of higher-order terms.

The genus Scaphidium Olivier in East China (Coleoptera, Staphylinidae, Scaphidiinae

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Liang Tang

2014-04-01

Full Text Available A review of 21 species of Scaphidium Olivier from East China is presented, including 6 new species: S. jinmingi sp. n. (Zhejiang, Anhui, Chongqing, S. crypticum sp. n.(Zhejiang, Fujian, Jiangxi, Guangxi, S. varifasciatum sp. n. (Zhejiang, An’hui, S. robustum sp. n. (Fujian, Guizhou, Chongqing, Guangxi, Yunnan, S. connexum sp. n. (Zhejiang, Fujian, Guangxi, and S. bayibini sp. n. (An’hui. New province records for S. comes Löbl, S. grande Gestro, S. sauteri Miwa & Mitono, S. formosanum Pic, S. carinense Achard, S. sinense Pic, S. delatouchei Achard, S. biwenxuani He, Tang & Li, S. klapperichi Pic, S. stigmatinotum Löbl, S. wuyongxiangi He, Tang & Li, and S. direptum Tang & Li as well as some biological notes are reported. Habitus and diagnostic characters of all species are photographed and a key to Scaphidium species of East China is provided.

Serifs and font legibility

Science.gov (United States)

Arditi, Aries; Cho, Jianna

2015-01-01

Using lower-case fonts varying only in serif size (0%, 5%, and 10% cap height), we assessed legibility using size thresholds and reading speed. Five percentage serif fonts were slightly more legible than sans serif, but the average inter-letter spacing increase that serifs themselves impose, predicts greater enhancement than we observed. RSVP and continuous reading speeds showed no effect of serifs. When text is small or distant, serifs may, then, produce a tiny legibility increase due to the concomitant increase in spacing. However, our data exhibited no difference in legibility between typefaces that differ only in the presence or absence of serifs. PMID:16099015

On Control and stabilisation of floating wind platforms with the help of CFD analysis and the Magnus effect

OpenAIRE

Neumüller, Georg

2017-01-01

With new technologies and possibilities arising both in the renewable energy sector as well as in the field of Computational Fluid Dynamics, this thesis describes the simulation of vortex- induced vibrations for floating wind turbine platforms. The aim is to control and stabilize floating wind platforms with the help of CFD and the Magnus effect. The Magnus effect shall hereby be used to reduce the wakes behind the cylinder and thereby not only move the cylinder, but also reduce vibrations. T...

Magnus effect on laminar flow around a rotating cylinder

International Nuclear Information System (INIS)

Amarante, J.C.A.

1989-01-01

The laminar flow around a rotating cylinder is studied, through the numerical solution of the full Navier-Stokes equations, for Reynolds number, based on cylinder radius, varying between 0.5 and 25 and for non-dimensional tangential velocities of the body surface between zero and 8. The Taylor and Hughes method is employed in the theoretical investigation. The Magnus lift coefficient and the drag coefficient are obtained and the presure and vorticity distribution are calculated. (author)

On the Floquet–Magnus expansion: Applications in solid-state nuclear magnetic resonance and physics

Energy Technology Data Exchange (ETDEWEB)

Mananga, Eugene Stephane, E-mail: emananga@gradcenter.cuny.edu [Harvard Medical School and Massachusetts General Hospital, Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging Physics, Department of Radiology, 55 Fruit Street, Boston, Massachusetts 02114 (United States); Charpentier, Thibault, E-mail: thibault.charpentier@cea.fr [Commissariat à l’Energie Atomique, IRAMIS, Service interdisciplinaire sur les systèmes moléculaires et matériaux, CEA/CNRS UMR 3299, 91191, Gif-sur-Yvette (France)

2016-01-22

Theoretical approaches are useful and powerful tools for more accurate and efficient spin dynamics simulation to understand experiments and devising new RF pulse sequence in nuclear magnetic resonance. Solid-state NMR is definitely a timely topic or area of research, and not many papers on the respective theories are available in the literature of nuclear magnetic resonance or physics reports. This report presents the power and the salient features of the promising theoretical approach called Floquet–Magnus expansion that is helpful to describe the time evolution of the spin system at all times in nuclear magnetic resonance. The report presents a broad view of algorithms of spin dynamics, based on promising and useful theory of Floquet–Magnus expansion. This theory provides procedures to control and describe the spin dynamics in solid-state NMR. Major applications of the Floquet–Magnus expansion are illustrated by simple solid-state NMR and physical applications such as in nuclear, atomic, molecular physics, and quantum mechanics, NMR, quantum field theory and high energy physics, electromagnetism, optics, general relativity, search of periodic orbits, and geometric control of mechanical systems. The aim of this report is to bring to the attention of the spin dynamics community, the bridge that exists between solid-state NMR and other related fields of physics and applied mathematics. This review article also discusses future potential theoretical directions in solid-state NMR.

Analysis of nuclear accumulation of influenza NP antigen in von Magnus virus-infected cells.

Science.gov (United States)

Maeno, K; Aoki, H; Hamaguchi, M; Iinuma, M; Nagai, Y; Matsumoto, T; Takeura, S; Shibata, M

1981-01-01

When 1-5C-4 cells were infected with von Magnus virus derived from influenza A/RI/5+ virus by successive undiluted passages in chick embryos, virus-specific proteins were synthesized but production of infectious virus was inhibited. In these cells the synthesis of viral RNA was suppressed and the nucleoprotein (NP) antigen was found predominantly in the nucleus in contrast to standard virus-infected cells in which the antigen was distributed throughout the whole cell. The intracellular location and migration of NP were determined by isotope labeling and sucrose gradient centrifugation of subcellular fractions. In standard virus-infected cell NP polypeptide was present predominantly in the cytoplasm in the form of viral ribonucleoprotein (RNP) and intranuclear RNP was detected in reduced amounts. In contrast, in von Magnus virus-infected cells NP polypeptide was present predominantly in the nucleus in a nonassembled, soluble from and the amount of cytoplasmic RNP was considerably reduced. After short-pulse labeling NP was detected exclusively in the cytoplasm in a soluble form and after a chase a large proportion of such soluble NP was seen in the nucleus. It is suggested that a large proportion of the NP synthesized in von Magnus virus-infected cells in not assembled into cytoplasmic RNP because of the lack of available RNA and the NP migrated into the nucleus and remained there.

On Macruropsar magnus brevicauda nov. subspec. from the island of Mefoor

NARCIS (Netherlands)

Oort, van E.D.

1908-01-01

In 1870 our traveller von Rosenberg sent to the Leyden Museum under the name of Lamprotornis magnus nov. spec. a fine series of skins of a new bird, collected by him in the year 1869 on the island of Mefoor (Noemfoor) and on the island of Soepiori (named by him Soëk) of the Schoutenislands. The

Effet structurant de la plante hôte chez la bruche de l'arachide, Caryedon serratus (Olivier, 1790 (Coleoptera : Bruchidae

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Sembène, M.

2012-01-01

Full Text Available Structuring effect of the host plant in the groundnut bruchid, Caryedon serratus (Olivier, 1790 (Coleoptera: Bruchidae. Twenty-six samples of the groundnut seed-beetle which were reared from pods of five different host plants (Arachis hypogaea L., Bauhinia rufescens Lam., Cassia sieberiana DC., Piliostigma reticulatum (DC. Hochst. and Tamarindus indica L. in four localities of Senegal were compared using electrophoresis based on six loci of four enzymatic systems. The population structure of Caryedon serratus Olivier was analysed using Weir and Cockerham's estimator of Wright's F-statistics. θ value (0.235 and the dendrogram of Rogers'genetic distances revealed a high degree of genetic differentiation between host plants. Genetic analysis without C. sieberiana samples indicated that populations form host races which are partially isolated according to their host plants (θ = 0.035. Geographical distances between localities are not decisive for genetic structuration of C. serratus populations from a given host plant.

L’olivier au Maroc

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El Mouhtadi Issam

2014-03-01

Full Text Available L’olivier est une culture traditionnelle sur le pourtour de la Méditerranée. Il est donc naturel de trouver cet arbre au Maroc où il est présent depuis des siècles. Cultivé surtout traditionnellement jusqu’à ses dernières années, il fait l’objet maintenant d’un plan de valorisation très ambitieux pour non seulement garder le Royaume à son niveau actuel (2e producteur mondial pour l’olive de conserve et 6e pour l’huile d’olive mais pour conquérir de nouveaux marchés au niveau mondial et profiter ainsi de l’engouement que connaît cette huile reconnue pour ses bienfaits. Le plan national « Maroc Vert » permet ainsi, grâce à des subventions conséquentes, non seulement de renouveler les vergers existant avec la variété traditionnelle picholine du Maroc, mais également la plantation de nouvelles variétés en super-intensif dans le but d’industrialiser au maximum de nouveaux vergers. Il en est de même pour la transformation des olives en huile de bonne qualité avec la mise en place d’unités de trituration modernes qui doivent supplanter à terme la multitude de « maâsra » et réduire ainsi l’impact environnemental dû aux margines. L’olive ne sera plus dans l’avenir que représentée par son huile et ses formes comestibles, mais les résidus de son extraction seront valorisés soit sous forme de combustible élaboré pour le grignon, soit sous forme d’une base de chimie verte pour les sous-produits du raffinage. D’autres applications sont actuellement à l’étude, car le Maroc à compris, comme tous les autres grands pays producteurs, que l’olive était un nouveau gisement de richesses.

A mini-invasive adductor magnus tendon transfer technique for medial patellofemoral ligament reconstruction: a technical note.

Science.gov (United States)

Sillanpää, Petri J; Mäenpää, Heikki M; Mattila, Ville M; Visuri, Tuomo; Pihlajamäki, Harri

2009-05-01

Patellar dislocations are associated with injuries to the medial patellofemoral ligament (MPFL). Several techniques for MPFL reconstruction have been recently published with some disadvantages involved, including large skin incisions and donor site morbidity. Arthroscopic stabilizing techniques carry the potential of inadequate restoration of MPFL function. We present a minimally invasive technique for MPFL reconstruction using adductor magnus tendon autograft. This technique is easily performed, safe, and provides a stabilizing effect equal to current MPFL reconstructions. Skin incision of only 3-4 cm is located at the level of the proximal half of the patella. After identifying the distal insertion of the adductor magnus tendon, a tendon harvester is introduced to harvest the medial two-thirds of the tendon, while the distal insertion is left intact. The adductor magnus tendon is cut at 12-14 cm from its distal insertion and transferred into the patellar medial margin. Two suture anchors are inserted through the same incision at the superomedial aspect of the patella in the anatomic MPFL origin. The graft is tightened at 30 degrees knee flexion. Aftercare includes 4 weeks of brace treatment with restricted range of motion.

17 CFR 232.308 - Type size and font; legibility.

Science.gov (United States)

2010-04-01

... 17 Commodity and Securities Exchanges 2 2010-04-01 2010-04-01 false Type size and font; legibility. 232.308 Section 232.308 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION... § 232.308 Type size and font; legibility. Provisions relating to type size, font and other legibility...

Multi-font printed Mongolian document recognition system

Science.gov (United States)

Peng, Liangrui; Liu, Changsong; Ding, Xiaoqing; Wang, Hua; Jin, Jianming

2009-01-01

Mongolian is one of the major ethnic languages in China. Large amount of Mongolian printed documents need to be digitized in digital library and various applications. Traditional Mongolian script has unique writing style and multi-font-type variations, which bring challenges to Mongolian OCR research. As traditional Mongolian script has some characteristics, for example, one character may be part of another character, we define the character set for recognition according to the segmented components, and the components are combined into characters by rule-based post-processing module. For character recognition, a method based on visual directional feature and multi-level classifiers is presented. For character segmentation, a scheme is used to find the segmentation point by analyzing the properties of projection and connected components. As Mongolian has different font-types which are categorized into two major groups, the parameter of segmentation is adjusted for each group. A font-type classification method for the two font-type group is introduced. For recognition of Mongolian text mixed with Chinese and English, language identification and relevant character recognition kernels are integrated. Experiments show that the presented methods are effective. The text recognition rate is 96.9% on the test samples from practical documents with multi-font-types and mixed scripts.

SlaVaComp Fonts Converter

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Simon Skilevic

2013-12-01

Full Text Available This paper presents a fonts converter that was developed as a part of the Freiburg project on historical corpus linguistics. The tool named SlaVaComp-Konvertierer converts Church Slavonic texts digitized with non-Unicode fonts into the Unicode format without any loss of information contained in the original file and without damage to the original formatting. It is suitable for the conversion of all idiosyncratic fonts—not only Church Slavonic—and therefore can be used not only in Palaeoslavistic, but also in all historical and philological studies.

Study on Physical Mechanism of the Magnus Effect

Science.gov (United States)

Maruyama, Yuichi

Two kinds of methods of explaining the physical mechanism of the Magnus effect are compared with each other and fully discussed. The first method uses Bernoulli's theorem and the fluid velocity difference between both sides of the body. The second one is based on the momentum theorem which relates the lift force with the fluid acceleration perpendicular to the uniform flow direction, which is caused by the asymmetry of separation points. It is shown that the latter method is preferable because it can be strictly applied to the real flow field containing both the rotational and the irrotational flow regions.

TRANSLATING THE NEW WORLD(S: A SEMIOTIC APPROACH TO PARROT AND OLIVIER IN AMERICA BY PETER CAREY

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Luigi Gussago

2012-12-01

Full Text Available In his latest novel Parrot and Olivier in America (2009 the Australian-born novelist Peter Carey explores the way three seemingly incompatible civilisations translate the New World. On the one hand Olivier, the snobbish French aristocrat, struggles to understand the concept of democracy in America because he wants to translate it ‘literally’ into his own system (of behaviour, social convenience, pragmatics, etc.. On the other hand, Parrot, the British-Australian pícaro and Olivier’s “clown and secretaire”, enjoys rewriting his master’s awful calligraphy, changing some of the Frenchman’s views on America according to his whim, and deliberately acting as a bad translator. Thirdly, the American free citizen, the “Man of the Future” (p. 187: s/he uses language creatively, coining a personal idiolect as evidence of belonging to a nation at its début, where “greed might tear the land apart but still the low could climb so high” (p. 251. This paper aims at illustrating how these three entities translate other systems of values, or their loss of values, into systems with which they can identify. The theoretical framework of my study proceeds from the contributions of Yuri Lotman, the main representative of the Tartu-Moscow school of semiotics.

Una especie nueva de Tillus Olivier, 1790 (Coleoptera, Cleridae de la Península Ibérica

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López-Colón, José Ignacio

2003-06-01

Full Text Available Tillus ibericus sp. nov. is described from the Comunidad Autónoma de Madrid (Spain and it is compared to the western Palaearctic species of the genus Tillus Olivier, 1790. Tillus ibericus is easily distinguished from all other species of the genus by the structure of the elytral sculpture and its characteristic coloration. This new species shares a general habitus and characters from the antennae, and general body stucture with T. flabellicornis Fairmaire, 1866, a species from northern Africa. All preexisting records of T. flabellicornis in the Iberian Peninsula correspond to T. ibericus sp. nov..Se describe Tillus ibericus sp. nov. de la Comunidad Autónoma de Madrid (España y se compara con las otras especies del género Tillus Olivier, 1790 de la región Paleártica occidental. Tillus ibericus se distingue con facilidad de las especies próximas por la estructura del punteado elitral y por su coloración característica. La especie nueva comparte un aspecto general y caracteres de la estructura del cuerpo y de las antenas con T. flabellicornis Fairmaire, 1866 del Norte de África. Todas las citas anteriores de T. flabellicornis de la Península Ibérica corresponden a T. ibericus sp. nov.

Nonlinear Magnus-induced dynamics and Shapiro spikes for ac and dc driven skyrmions on periodic quasi-one-dimensional substrates

Science.gov (United States)

Reichhardt, Charles; Reichhardt, Cynthia J. Olson

We numerically examine skyrmions interacting with a periodic quasi-one-dimensional substrate. When we drive the skyrmions perpendicular to the substrate periodicity direction, a rich variety of nonlinear Magnus-induced effects arise, in contrast to an overdamped system that shows only a linear velocity-force curve for this geometry. The skyrmion velocity-force curve is strongly nonlinear and we observe a Magnus-induced speed-up effect when the pinning causes the Magnus velocity response to align with the dissipative response. At higher applied drives these components decouple, resulting in strong negative differential conductivity. For skyrmions under combined ac and dc driving, we find a new class of phase locking phenomena in which the velocity-force curves contain a series of what we call Shapiro spikes, distinct from the Shapiro steps observed in overdamped systems. There are also regimes in which the skyrmion moves in the direction opposite to the applied dc drive to give negative mobility.

3-D magnetic field calculations for wiggglers using MAGNUS-3D

International Nuclear Information System (INIS)

Pissanetzky, S.; Tompkins, P.

1988-01-01

The recent but steady trend toward increased magnetic and geometric complexity in the design of wigglers and undulators, of which tapered wigglers, hybrid structures, laced electromagnetic wigglers, magnetic cladding, twisters and magic structures are examples, has caused a need for reliable 3-D computer models and a better understanding of the behavior of magnetic systems in three dimensions. The capabilities of the MAGNUS-3D Group of Programs are ideally suited to solve this class of problems and provide insight into 3-D effects. MAGNUS-3D can solve any problem of Magnetostatics involving permanent magnets, linear or nonlinear ferromagnetic materials and electric conductors of any shape in space. The magnetic properties of permanent magnets are described by the complete nonlinear demagnetization curve as provided by the manufacturer, or, at the user's choice, by a simpler approximation involving the coercive force, the residual induction and the direction of magnetization. The ferromagnetic materials are described by a magnetization table and an accurate interpolation relation. An internal library with properties of common industrial steels is available. The conductors are independent of the mesh and are described in terms of conductor elements from an internal library

Dyslexie font does not benefit reading in children with or without dyslexia.

Science.gov (United States)

Kuster, Sanne M; van Weerdenburg, Marjolijn; Gompel, Marjolein; Bosman, Anna M T

2017-12-04

In two experiments, the claim was tested that the font "Dyslexie", specifically designed for people with dyslexia, eases reading performance of children with (and without) dyslexia. Three questions were investigated. (1) Does the Dyslexie font lead to faster and/or more accurate reading? (2) Do children have a preference for the Dyslexie font? And, (3) is font preference related to reading performance? In Experiment 1, children with dyslexia (n = 170) did not read text written in Dyslexie font faster or more accurately than in Arial font. The majority preferred reading in Arial and preference was not related to reading performance. In Experiment 2, children with (n = 102) and without dyslexia (n = 45) read word lists in three different font types (Dyslexie, Arial, Times New Roman). Words written in Dyslexie font were not read faster or more accurately. Moreover, participants showed a preference for the fonts Arial and Times New Roman rather than Dyslexie, and again, preference was not related to reading performance. These experiments clearly justify the conclusion that the Dyslexie font neither benefits nor impedes the reading process of children with and without dyslexia.

Computer modeling of the stalled flow of a rotating cylinder and the reverse magnus effect

Science.gov (United States)

Belotserkovskii, S. M.; Kotovskii, V. N.; Nisht, M. I.; Fedorov, R. M.

1985-02-01

Unsteady stalled flow around a rotating cylinder is investigated in a numerical experiment. Attention is mostly given to the reverse Magnus effect which was discovered in tube experiments at some critical rotational speed of the cylinder.

Character feature integration of Chinese calligraphy and font

Science.gov (United States)

Shi, Cao; Xiao, Jianguo; Jia, Wenhua; Xu, Canhui

2013-01-01

A framework is proposed in this paper to effectively generate a new hybrid character type by means of integrating local contour feature of Chinese calligraphy with structural feature of font in computer system. To explore traditional art manifestation of calligraphy, multi-directional spatial filter is applied for local contour feature extraction. Then the contour of character image is divided into sub-images. The sub-images in the identical position from various characters are estimated by Gaussian distribution. According to its probability distribution, the dilation operator and erosion operator are designed to adjust the boundary of font image. And then new Chinese character images are generated which possess both contour feature of artistical calligraphy and elaborate structural feature of font. Experimental results demonstrate the new characters are visually acceptable, and the proposed framework is an effective and efficient strategy to automatically generate the new hybrid character of calligraphy and font.

Sterilization and lethal gamma radiation doses on adults and eggs of Sitotroga Cerealella (OLIVIER)

International Nuclear Information System (INIS)

Wiendl, F.M.; Bovi, O.A.; Arthur, V.

1975-04-01

The influence of lethal doses of radiation from a cobalt 60 gamma source on eggs, adults and fertitility of Sitotroga Cerealella (Olivier) is described. Eggs irradiated with a dose of 14 Krad still showed viability of 16.1%. On longevity doses up to 70 Krad were usually non lethal but some variation could be observed related to the larval diet. Females fertilized by males irradiated with a dose of 70 Krad produced 36% fertile eggs. When the females were irradiated with the same dose, their fertility dropped to 2.2% and when both sexes were irradiated with a 60 Krad dose, the fertility was 28.8%

PERANCANGAN FONT TAPYCH BERBASIS KARAKTER VISUAL MOTIF TAPIS LAMPUNG

Directory of Open Access Journals (Sweden)

Wantoro Wantoro

2017-02-01

Full Text Available Abstrak Tapis merupakan kain khas asal Lampung yang terbuat dari tenunan benang kapas berwarna emas dan perak. Sebagai produk budaya, tapis memiliki visualisasi yang khas. Berdasarkan observasi, pemanfaatan tapis yang memiliki representasi nilai dan nilai estetika tinggi masih terbatas pada media dan waktu tertentu. Hal ini tentu saja menimbulkan kekhawatiran tentang pelestarian dan pengembangan tapis karena keterbatasan pemanfaatannya. Contoh pemanfaatan tapis yang dapat dilakukan adalah upaya eksplorasi visual kedalam bentuk produk budaya lain yang lekat dengan keseharian masyarakat. Salah satu produk budaya yang dapat dirancang adalah huruf. Huruf merupakan media komunikasi tulisan yang sebenarnya telah lama ada dan berkembang. Di Indonesia, komunikasi tulisan mayoritas  menggunakan huruf latin. Penggunaan huruf latin di Indonesia dapat dilihat mulai dari cara manual hingga sudah dilakukan secara digital. Huruf digital atau disebut dengan font saat ini banyak digunakan pada perangkat-perangkat digital/elektronik. Perkembangan desain font juga terus berkembang karena kebutuhan akan penyampaian pesan maupun kesan estetis pada suatu karya juga berkembang. Hal inilah yang kemudian menginspirasi lahirnya kemungkinan-kemungkinan bentuk visual baru font khususnya yang berbasis huruf Latin. Tapis, dengan kekayaan estetik pada visualnya dapat dijadikan sebagai inspirasi dalam menciptakan kemungkinan bentuk baru dari sebuah font yang berbasis pada bentuk huruf latin. Perpaduan visual antara tapis dan karakter huruf latin dapat menghasilkan karakteristik yang khas. Kata Kunci: Adaptasi, Font, Perancangan, Tapis, Visual Abstract Tapis from Lampung is a unique fabric made from cotton yarn woven gold and silver. As cultural products, Tapis have a typical visualization. Based on observations, the use of Tapis which has a value of representation and a high aesthetic value is still limited to the media and a certain time. This raises concerns about the

Vooruitgang en ondergang: historiese dialektiek in twee tekste van Hans Magnus Enzensberger

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J.P.C. van den Berg

2006-07-01

Full Text Available Progress and decline: historical dialect in two texts by Hans Magnus Enzensberger The interpretation of history as a process of dialectical development has been one of the most important ideas of Marxist philosophy. Whereas earlier Marxists optimistically considered this process as steering inevitably towards a sociopolitical utopia, subsequent thinkers in the Marxist tradition, especially those identified as Neo-Marxists (like Theodor Adorno, had a more pessimistic interpretation of dialectics. Influenced especially by Adorno, German poet and social commentator Hans Magnus Enzensberger uses the concept of “historical dialectics” as a seminal theme in two of his literary works: “Mausoleum: siebenunddreißig Balladen aus der Geschichte des Fortschritts” and “Der Untergang der Titanic”. In these two texts the representation of the ambiguity of “Fortschritt” or historical development presupposes a more pessimistic account of the historical process. This ambiguity is present both in a bird’s-eye view of the historical process (“Mausoleum”, and in the focus on one specific historical incident (“Der Untergang der Titanic”. Enzensberger subsequently continues to consider the role of art within this dialectical context. In this article, both Enzensberger’s literary use of the philosophical concept of historical dialectics and its artistic implications (as identified by him are examined.

Nitric oxide in the nucleus raphe magnus modulates cutaneous blood flow in rats during hypothermia.

Science.gov (United States)

Arami, Masoumeh Kourosh; Zade, Javad Mirnajafi; Komaki, Alireza; Amiri, Mahmood; Mehrpooya, Sara; Jahanshahi, Ali; Jamei, Behnam

2015-10-01

Nucleus Raphe Magnus (NRM) that is involved in the regulation of body temperature contains nitric oxide (NO) synthase. Considering the effect of NO on skin blood flow control, in this study, we assessed its thermoregulatory role within the raphe magnus. To this end, tail blood flow of male Wistar rats was measured by laser doppler following the induction of hypothermia. Intra-NRM injection of SNP (exogenous NO donor, 0.1- 0.2 μl, 0.2 nM) increased the blood flow. Similarly, unilateral microinjection of glutamate (0.1- 0.2 μl, 2.3 nM) into the nucleus increased the blood flow. This effect of L-glutamate was reduced by prior intra NRM administration of NO synthase inhibitor N(G)-methyl-L-arginine or N(G)-nitro-L-arginine methyl ester (L-NAME, 0.1 µl, 100 nM). It is concluded that NO modulates the thermoregulatory response of NRM to hypothermia and may interact with excitatory amino acids in central skin blood flow regulation.

Olivier Chanel et Guillaume Faburel (dir., 2010, L’Environnement dans la décision publique : Refonder l’évaluation socio-économique pour des politiques de transport plus durables, Economica, Paris, 230 p.

Directory of Open Access Journals (Sweden)

Adrien de Abreu

2010-09-01

Full Text Available Quid des impacts environnementaux dans l’évaluation socio-économique des projets d’infrastructure ? C’est sous l’angle des équipements de transport que les auteurs abordent cette question, dirigés par Olivier Chanel et Guillaume Faburel. Olivier Chanel est chercheur en économie de l’environnement au sein du GREQAM (Groupement de recherche en économie quantitative d’Aix-Marseille. Guillaume Faburel est Maître de conférences à l’Université Paris 12 - Val de Marne et chercheur au CRETEIL (Centr...

Scanning electron microscopy of the interaction between Cryptococcus magnus and Colletotrichum gloeosporioides on papaya fruit = Microscopia eletrônica de varredura da interação entre Cryptococcus magnus e Colletotrichum gloeosporioides em frutos de mamão

NARCIS (Netherlands)

Capdeville, G.; Souza, M.T.; Santos, J.R.P.; Miranda, S.P.; Caetano, A.R.; Falcao, R.; Gomes, A.C.M.M.

2007-01-01

The objective of this work was to investigate possible modes of action of the yeast Cryptococcus magnus in controlling anthracnose (Colletotrichum gloeosporioides) on post harvested papaya fruits. Scanning electron microscopy was used to analyze the effect of the yeast on inoculations done after

Hamlet no cinema: as adaptações fílmicas de Laurence Olivier (1948 e Franco Zeffirelli (1990

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Rogério Tomaz

2011-10-01

Full Text Available As inter-relações entre as artes traduzem-se numa discussão bastante recente. Um dos elementos que compõem esse quadro é a tradução intersemiótica que consiste na relação entre sistemas signícos. Este artigo propõe a análise da abordagem intersemiótica na adaptação da peça de teatro Hamlet, Príncipe da Dinamarca, de William Shakespeare para o cinema nos filmes de Laurence Olivier e Franco Zeffirelli.

Operating cycle optimization for a Magnus effect-based airborne wind energy system

International Nuclear Information System (INIS)

Milutinović, Milan; Čorić, Mirko; Deur, Joško

2015-01-01

Highlights: • Operating cycle of a Magnus effect-based AWE system has been optimized. • The cycle trajectory should be vertical and far from the ground based generator. • Vertical trajectory provides high pulling force that drives the generator. • Large distance from the generator is required for the feasibility of the cycle. - Abstract: The paper presents a control variables optimization study for an airborne wind energy production system. The system comprises an airborne module in the form of a buoyant, rotating cylinder, whose rotation in a wind stream induces the Magnus effect-based aerodynamic lift. Through a tether, the airborne module first drives the generator fixed on the ground, and then the generator becomes a motor that lowers the airborne module. The optimization is aimed at maximizing the average power produced at the generator during a continuously repeatable operating cycle. The control variables are the generator-side rope force and the cylinder rotation speed. The optimization is based on a multi-phase problem formulation, where operation is divided into ascending and descending phases, with free boundary conditions and free cycle duration. The presented simulation results show that significant power increase can be achieved by using the obtained optimal operating cycle instead of the initial, empirically based operation control strategy. A brief analysis is also given to provide a physical interpretation of the optimal cycle results

Nitric oxide in the nucleus raphe magnus modulates cutaneous blood flow in rats during hypothermia

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Masoumeh Kourosh Arami

2015-10-01

Full Text Available Objective(s: Nucleus Raphe Magnus (NRM that is involved in the regulation of body temperature contains nitric oxide (NO synthase. Considering the effect of NO on skin blood flow control, in this study, we assessed its thermoregulatory role within the raphe magnus. Materials and Methods: To this end, tail blood flow of male Wistar rats was measured by laser doppler following the induction of hypothermia. Results: Intra-NRM injection of SNP (exogenous NO donor, 0.1- 0.2 μl, 0.2 nM increased the blood flow. Similarly, unilateral microinjection of glutamate (0.1- 0.2 μl, 2.3 nM into the nucleus increased the blood flow. This effectof L-glutamate was reduced by prior intra NRM administrationof NO synthase inhibitor NG-methyl-L-arginine or NG-nitro-L-argininemethyl ester (L-NAME, 0.1 µl, 100 nM. Conclusion: It is concluded that NO modulates the thermoregulatory response of NRM to hypothermia and may interactwith excitatory amino acids in central skin blood flow regulation.

Drag force, drag torque, and Magnus force coefficients of rotating spherical particle moving in fluid

Czech Academy of Sciences Publication Activity Database

Lukerchenko, Nikolay; Kvurt, Y.; Keita, Ibrahima; Chára, Zdeněk; Vlasák, Pavel

2012-01-01

Roč. 30, č. 1 (2012), s. 55-67 ISSN 0272-6351 R&D Projects: GA AV ČR IAA200600603; GA ČR GA103/09/1718 Institutional research plan: CEZ:AV0Z20600510 Keywords : drag force * drag torque * Magnus force * Reynolds number * rotational Reynolds number Subject RIV: BK - Fluid Dynamics Impact factor: 0.435, year: 2012

Vacancy-rearrangement theory in the first Magnus approximation

International Nuclear Information System (INIS)

Becker, R.L.

1984-01-01

In the present paper we employ the first Magnus approximation (M1A), a unitarized Born approximation, in semiclassical collision theory. We have found previously that the M1A gives a substantial improvement over the first Born approximation (B1A) and can give a good approximation to a full coupled channels calculation of the mean L-shell vacancy probability per electron, p/sub L/, when the L-vacancies are accompanied by a K-shell vacancy (p/sub L/ is obtained experimentally from measurements of K/sub α/-satellite intensities). For sufficiently strong projectile-electron interactions (sufficiently large Z/sub p/ or small v) the M1A ceases to reproduce the coupled channels results, but it is accurate over a much wider range of Z/sub p/ and v than the B1A. 27 references

Fontes de informações do consumidor organizacional: as compras de medicamentos por hospitais

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Paulo Fernando Burlamaqui

2008-07-01

Full Text Available http://dx.doi.org/10.5007/2175-8069.2008v10n20p163 A fonte das buscas de informação realizadas pelo consumidor organizacional pode influir decisivamente no momento da escolha do fornecedor. A compreensão de como são processadas as buscas de informações realizadas nas compras se apresenta como questão estratégica por parte de profissionais de marketing no reconhecimento das necessidades dos consumidores organizacionais. O presente estudo analisa como é efetuada a busca das fontes de informações na compra de medicamentos observando o comportamento deste consumidor, através de uma survey aplicada aos compradores dos hospitais gaúchos. O estudo desenvolvido identificou a forte utilização das fontes de informações (fontes comerciais, fontes de mídia, fontes pessoais e fontes experimentais; onde observou-se que a principal influência são as fontes comerciais. A conclusão do estudo indica também que, por sua vez, o comprador pode compreender como a sua organização (hospital se comporta diante destas variáveis.

Qualidade de fruto da aceroleira cv. Olivier em dois estádios de maturação

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Elisa Adriano

2011-10-01

Full Text Available A acerola é um fruto de grande potencial econômico e nutricional devido ao seu alto teor de vitamina C, destacando-se como alimento funcional. É comercializada principalmente na forma de polpa congelada e fruto in natura. O objetivo deste estudo foi avaliar a qualidade dos frutos da aceroleira cv. Olivier em dois estádios de maturação. Para tanto, foram colhidas amostras de frutos em um pomar comercial no município de Junqueirópolis-SP. Foram realizadas a determinação da cor externa dos frutos e análises das características químicas de teor de sólidos solúveis, pH, acidez titulável, açúcares redutores, 'ratio' e ácido ascórbico de frutos semi-maduros e maduros. Os resultados obtidos permitiram concluir que os frutos semimaduros apresentaram maior acidez total, menor teor de sólidos solúveis e menor concentração de açúcares; no entanto, estes frutos apresentaram maiores teores de vitamina C, expressa em ácido ascórbico. Portanto, quando se buscam altos índices de vitamina C, os frutos devem ser colhidos num estádio de maturação menos avançado, com coloração alaranjada. O estudo demonstrou também que a cv Olivier produz frutos com características adequadas tanto para o mercado in natura quanto para a indústria, apresentando boa coloração e características químicas dentro dos padrões para esta fruta.

A Special Font for People with Dyslexia: Does it Work and, if so, why?

Science.gov (United States)

Marinus, Eva; Mostard, Michelle; Segers, Eliane; Schubert, Teresa M; Madelaine, Alison; Wheldall, Kevin

2016-08-01

In 2008 Christian Boer, a Dutch artist, developed a special font ("Dyslexie") to facilitate reading in children and adults with dyslexia. The font has received a lot of media attention worldwide (e.g., TheGuardian.com, Slate.com, TheAtlantic.com, USA Today, and io9.com). Interestingly, there is barely any empirical evidence for the efficacy of Dyslexie. This study aims to examine if Dyslexie is indeed more effective than a commonly used sans serif font (Arial) and, if so, whether this can be explained by its relatively large spacing settings. Participants were 39 low-progress readers who were learning to read in English. They were asked to read four different texts in four different font conditions that were all matched on letter display size (i.e., x-height), but differed in the degree to which they were matched for spacing settings. Results showed that low-progress readers performed better (i.e., read 7% more words per minute) in Dyslexie font than in standardly spaced Arial font. However, when within-word spacing and between-word spacing of Arial font was matched to that of Dyslexie font, the difference in reading speed was no longer significant. We concluded that the efficacy of Dyslexie font is not because of its specially designed letter shapes, but because of its particular spacing settings. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

Metamemory and memory for a wide range of font sizes: What is the contribution of perceptual fluency?

Science.gov (United States)

Undorf, Monika; Zimdahl, Malte F

2018-04-26

Words printed in a larger 48-point font are judged to be more memorable than words printed in a smaller 18-point font, although font size does not affect actual memory. To clarify the basis of this font size effect on metamemory and memory, 4 experiments investigated how presenting words in 48 (Experiment 1) or 4 (Experiments 2 to 4) font sizes between 6 point and 500 point affected judgments of learning (JOLs) and recall performance. Response times in lexical decision tasks were used to measure perceptual fluency. In all experiments, perceptual fluency was lower for words presented in very small and very large font sizes than for words presented in intermediate font sizes. In contrast, JOLs increased monotonically with font size, even beyond the point where a large font impaired perceptual fluency. Assessments of people's metacognitive beliefs about font size revealed that the monotonic increase in JOLs was not due to beliefs masking perceptual fluency effects (Experiment 3). Also, JOLs still increased across the whole range of font sizes when perceptual fluency was made salient at study (Experiment 4). In all experiments but Experiment 4, recall performance increased with increasing font size, although to a lesser extent than JOLs. Overall, the current study supports the idea that metacognitive beliefs underlie font size effects in metamemory. As important, it reveals that people's font size beliefs have some accuracy. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Numerical investigation of aerodynamic performance of darrieus wind turbine based on the magnus effect

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L Khadir

2016-10-01

Full Text Available The use of several developmental approaches is the researchers’ major preoccupation with the DARRIEUS wind turbine. This paper presents the first approach and results of a wide computational investigation on the aerodynamics of a vertical axis DARRIEUS wind turbine based on the MAGNUS effect. Consequently, wind tunnel tests were carried out to ascertain overall performance of the turbine and two-dimensional unsteady computational fluid dynamics (CFD models were generated to help understand the aerodynamics of this new performance. Accordingly, a moving mesh technique was used where the geometry of the turbine blade was cylinders. The turbine model was created in Gambit modeling software and then read into fluent software for fluid flow analysis. Flow field characteristics are investigated for several values of tip speed ratio (TSR, in this case we generated a new rotational speed ratio between the turbine and cylinder (δ = ωC/ωT. This new concept based on the MAGNUS approach provides the best configuration for better power coefficient values. The positive results of Cp obtained in this study are used to generate energy; on the other hand, the negative values of Cp could be used in order to supply the engines with energy.

Effects of Androctonus crassicauda (Olivier, 1807 (Scorpiones: Buthidae venom on rat metabolism

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O. Ozkan

2008-01-01

Full Text Available Scorpions are venomous arthropods of the Arachnida class and are considered relatives of spiders, ticks and mites. There is not any study about the biochemical effects of Androctonus crassicauda (Olivier, 1807 venom. Therefore, in the present study, we aimed at evaluating the toxicity of the venom from A. crassicauda, which is responsible for a number of deaths of infants, children and adults in tropical and subtropical countries. For this purpose, rats (n=35 were divided into seven groups of five animals each; venom solutions (250µg/kg were subcutaneously injected into rats; blood samples were taken from each animal at various times; and serum biochemical parameters were measured (levels of total proteins, total bilirubin, albumin, globulin, urea, creatinine, uric acid, glucose, cholesterol, triglycerides, sodium, chlorine, potassium and calcium, and the activity of the enzymes alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma-glutamyl transferase, lactate dehydrogenase. Serum levels of glucose, cholesterol, aspartate aminotransferase, alanine aminotransferase and uric acid increased in envenomed animals, compared to controls. There was a statistically positive correlation between Na+ and Cl- ions.

Propagators for the Time-Dependent Kohn-Sham Equations: Multistep, Runge-Kutta, Exponential Runge-Kutta, and Commutator Free Magnus Methods.

Science.gov (United States)

Gómez Pueyo, Adrián; Marques, Miguel A L; Rubio, Angel; Castro, Alberto

2018-05-09

We examine various integration schemes for the time-dependent Kohn-Sham equations. Contrary to the time-dependent Schrödinger's equation, this set of equations is nonlinear, due to the dependence of the Hamiltonian on the electronic density. We discuss some of their exact properties, and in particular their symplectic structure. Four different families of propagators are considered, specifically the linear multistep, Runge-Kutta, exponential Runge-Kutta, and the commutator-free Magnus schemes. These have been chosen because they have been largely ignored in the past for time-dependent electronic structure calculations. The performance is analyzed in terms of cost-versus-accuracy. The clear winner, in terms of robustness, simplicity, and efficiency is a simplified version of a fourth-order commutator-free Magnus integrator. However, in some specific cases, other propagators, such as some implicit versions of the multistep methods, may be useful.

Numerical investigation of aerodynamic performance of darrieus wind turbine based on the magnus effect

OpenAIRE

L Khadir; H Mrad

2016-01-01

The use of several developmental approaches is the researchers’ major preoccupation with the DARRIEUS wind turbine. This paper presents the first approach and results of a wide computational investigation on the aerodynamics of a vertical axis DARRIEUS wind turbine based on the MAGNUS effect. Consequently, wind tunnel tests were carried out to ascertain overall performance of the turbine and two-dimensional unsteady computational fluid dynamics (CFD) models were generated to help understand t...

The mycological legacy of Elias Magnus Fries.

Science.gov (United States)

Petersen, Ronald H; Knudsen, Henning

2015-06-01

The taxonomic concepts which originated with or were accepted by Elias Magnus Fries were presented during his lifetime in the printed word, illustrative depiction, and in collections of dried specimens. This body of work was welcomed by the mycological and botanical communities of his time: students and associates aided Fries and after his passing carried forward his taxonomic ideas. His legacy spawned a line of Swedish and Danish mycologists intent on perpetuating the Fries tradition: Hampus von Post, Lars Romell, Seth Lundell and John Axel Nannfeldt in Sweden; Emil Rostrup, Severin Petersen and Jakob Lange in Denmark. Volumes of color paintings and several exsiccati, most notably one edited by Lundell and Nannfeldt attached fungal portraits and preserved specimens (and often photographs) to Fries names. The result is a massive resource from which to harvest the name-concept relationship with clarity. In the 20th century, nomenclatural commissions legislated Fries's Systema and Elenchus as the "starting point" for names of most fungi, giving these books special recognition. The present paper attempts to trace Fries's legacy from his lifetime to the recent past.

On the inverse Magnus effect for flow past a rotating cylinder

Science.gov (United States)

John, Benzi; Gu, Xiao-Jun; Barber, Robert W.; Emerson, David R.

2016-11-01

Flow past a rotating cylinder has been investigated using the direct simulation Monte Carlo method. The study focuses on the occurrence of the inverse Magnus effect under subsonic flow conditions. In particular, the variations in the coefficients of lift and drag have been investigated as a function of the Knudsen and Reynolds numbers. Additionally, a temperature sensitivity study has been carried out to assess the influence of the wall temperature on the computed aerodynamic coefficients. It has been found that both the Reynolds number and the cylinder wall temperature significantly affect the drag as well as the onset of lift inversion in the transition flow regime.

FONTES PRIMÁRIAS: SABERES EM MOVIMENTO

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CAMPOS Edson Nascimento

1997-01-01

Full Text Available Este artigo trata as fontes primárias à luz de uma epistemologia que submete a investigação e a pesquisa à ação desconstrutora dos sujeitos: as fontes, por isso, saem da posição de "ponto primacial" para a de "ponto relacional". E, aí, a linguagem se transforma em relação de intertextualidade, pois a contradição marca o sentido da interdependência e, nisso, a significação põe a força da instabilidade na relação do sujeito com o objeto. Este, aliás, aberto à abordagem múltipla do real, integra a relação de interdisciplinaridade, e, assim, vêm surgindo, por exemplo, explicações iluminadoras com as articulações de Educação, Pedagogia, Linguagem, História.

A hard-to-read font reduces the framing effect in a large sample.

Science.gov (United States)

Korn, Christoph W; Ries, Juliane; Schalk, Lennart; Oganian, Yulia; Saalbach, Henrik

2018-04-01

How can apparent decision biases, such as the framing effect, be reduced? Intriguing findings within recent years indicate that foreign language settings reduce framing effects, which has been explained in terms of deeper cognitive processing. Because hard-to-read fonts have been argued to trigger deeper cognitive processing, so-called cognitive disfluency, we tested whether hard-to-read fonts reduce framing effects. We found no reliable evidence for an effect of hard-to-read fonts on four framing scenarios in a laboratory (final N = 158) and an online study (N = 271). However, in a preregistered online study with a rather large sample (N = 732), a hard-to-read font reduced the framing effect in the classic "Asian disease" scenario (in a one-sided test). This suggests that hard-read-fonts can modulate decision biases-albeit with rather small effect sizes. Overall, our findings stress the importance of large samples for the reliability and replicability of modulations of decision biases.

Investigation of the effect of finite pulse errors on the BABA pulse sequence using the Floquet-Magnus expansion approach

Science.gov (United States)

Mananga, Eugene S.; Reid, Alicia E.

2013-01-01

This paper presents a study of finite pulse widths for the BABA pulse sequence using the Floquet-Magnus expansion (FME) approach. In the FME scheme, the first order ? is identical to its counterparts in average Hamiltonian theory (AHT) and Floquet theory (FT). However, the timing part in the FME approach is introduced via the ? function not present in other schemes. This function provides an easy way for evaluating the spin evolution during the time in between' through the Magnus expansion of the operator connected to the timing part of the evolution. The evaluation of ? is particularly useful for the analysis of the non-stroboscopic evolution. Here, the importance of the boundary conditions, which provide a natural choice of ? , is ignored. This work uses the ? function to compare the efficiency of the BABA pulse sequence with ? and the BABA pulse sequence with finite pulses. Calculations of ? and ? are presented.

Investigation of the Effect of Finite Pulse Errors on BABA Pulse Sequence Using Floquet-Magnus Expansion Approach.

Science.gov (United States)

Mananga, Eugene S; Reid, Alicia E

This paper presents the study of finite pulse widths for the BABA pulse sequence using the Floquet-Magnus expansion (FME) approach. In the FME scheme, the first order F 1 is identical to its counterparts in average Hamiltonian theory (AHT) and Floquet theory (FT). However, the timing part in the FME approach is introduced via the Λ 1 ( t ) function not present in other schemes. This function provides an easy way for evaluating the spin evolution during "the time in between" through the Magnus expansion of the operator connected to the timing part of the evolution. The evaluation of Λ 1 ( t ) is useful especially for the analysis of the non-stroboscopic evolution. Here, the importance of the boundary conditions, which provides a natural choice of Λ 1 (0) is ignored. This work uses the Λ 1 ( t ) function to compare the efficiency of the BABA pulse sequence with δ - pulses and the BABA pulse sequence with finite pulses. Calculations of Λ 1 ( t ) and F 1 are presented.

Estudo espectral em raios-X duros de fontes do tipo Z com o HEXTE/RXTE

Science.gov (United States)

D'Amico, F.; Heindl, W. A.; Rothschild, R. E.

2003-08-01

Apresentam-se os resultados de um estudo espectral em raios-X de fontes do tipo Z. As fontes do tipo Z são binárias de raios-X de baixa massa (BXBM) com campo magnético intermediário (B~109G). Esta classe de fontes é composta por apenas 6 fontes Galácticas (a saber: ScoX-1, 9, 7, CygX-2, 5 e 0). A nossa análise se concentra na faixa de raios-X duros (E ~ 20keV), até cerca de 200keV, faixa ótima de operação do telescópio "High Energy X-ray Timing Experiment" (HEXTE), um dos três telescópios de raios-X à bordo do Rossi X-ray Timing Explorer (RXTE). Nossa motivação para tal estudo, uma busca de caudas em raios-X duros em fontes do tipo Z, foi o pouco conhecimento sobre a emissão nesta faixa de energia das referidas fontes quando comparadas, por exemplo, as fontes do tipo atoll (também BXBM). Apresentam-se a análise/redução de dados e explicita-se a maneira como o HEXTE mede o ru1do de fundo. Especial atenção é direcionada a este item devido a localização das fontes do tipo Z e também ao problema de contaminação por fontes próximas. Com exceção de ScoX-1, nenhuma cauda em raios-X duros foi encontrada para as outras fontes, a despeito de resultados de detecção dessas caudas em algumas fontes pelo satélite BeppoSAX. As interpretações deste resultado serão apresentadas. Do ponto de vista deste estudo, nós deduzimos que a produção de caudas de raios-X duros em fontes do tipo Z é um processo disparado quando, pelo menos, uma condição é satisfeita: o brilho da componente térmica do espectro precisa estar acima de um certo valor limiar de ~4´1036ergs-1.

Iconographic dental typography. A dental character font for computer graphics.

Science.gov (United States)

McCormack, J

1991-06-08

The recent massive increase in available memory for microcomputers now allows multiple font faces to be stored in computer RAM memory for instant access to the screen and for printed output. Fonts can be constructed in which the characters are not just letters or numbers, but are miniature graphic icons--in this instance pictures of teeth. When printed on an appropriate laser printer, this produces printed graphics of publishing quality.

Numerical investigation of the effect of sphere dimples on the drag crisis and the Magnus effect

Science.gov (United States)

Li, Jing; Tsubokura, Makoto; Tsunoda, Masaya

2015-11-01

The present study investigates the flow over a golf ball and a smooth sphere around the critical Reynolds numbers under both stationary and self-spinning conditions by conducting Large-eddy simulations (LES) based on high resolution unstructured grids. For the stationary cases, the present calculation results validate the promotion of the drag crisis at a relatively lower Reynolds number due to the golf ball dimples. It also shows that the golf ball dimples have a limited effect on the time-dependent lateral force development in the subcritical regime, whereas the dimples are beneficial in suppressing the lateral force oscillations in the supercritical regimes. With spin parameter Γ = 0.1, the drag coefficients for the spinning smooth sphere increase slightly in all Reynolds number regimes when compared to the stationary cases, whereas for the spinning golf ball, the drag force decreases in the critical regime and increases in the supercritical regime. For both spinning models, the inverse Magnus effect was reproduced in the critical regime, whereas in the supercritical regime the ordinary Magnus force was generated. Relatively weaker lift forces were also observed in the cases of the spinning golf balls when compared to the spinning smooth spheres.

Dyslexie font does not benefit reading in children with or without dyslexia

NARCIS (Netherlands)

Kuster, S.M.; Weerdenburg, M.W.C. van; Gompel, M.; Bosman, A.M.T.

2018-01-01

In two experiments, the claim was tested that the font "Dyslexie", specifically designed for people with dyslexia, eases reading performance of children with (and without) dyslexia. Three questions were investigated. (1) Does the Dyslexie font lead to faster and/or more accurate reading? (2) Do

SlaVaComp: Konvertierungstool (= SlaVaComp Fonts Converter

Directory of Open Access Journals (Sweden)

Simon Skilevic

2013-12-01

Full Text Available Der vorliegende Beitrag informiert über ein Tool, das im Rahmen eines Freiburger Projekts zur historischen Korpuslinguistik entwickelt wurde und dazu dient, kirchenslavische Texte, die ohne Einsatz von Unicode digitalisiert wurden, ohne Verlust von Information bzw. Formatierung ins Unicode-Format zu überführen. Das Tool heißt SlaVaComp-Konvertierer. Es eignet sich für die Konvertierung aller idiosynkratischen Fonts und kann somit nicht nur in der Paläoslavistik, sondern in allen historisch arbeitenden Philologien eingesetzt werden. ____________________ This paper presents a fonts converter that was developed as a part of the Freiburg project on historical corpus linguistics. The tool named SlaVaComp-Konvertierer converts Church Slavonic texts digitized with non-Unicode fonts into the Unicode format without any loss of information contained in the original file and without damage to the original formatting. It is suitable for the conversion of all idiosyncratic fonts—not only Church Slavonic—and therefore can be used not only in Palaeoslavistic, but also in all historical and philological studies.

Drift of suspended ferromagnetic particles due to the Magnus effect

Science.gov (United States)

Denisov, S. I.; Pedchenko, B. O.

2017-01-01

A minimal system of equations is introduced and applied to study the drift motion of ferromagnetic particles suspended in a viscous fluid and subjected to a time-periodic driving force and a nonuniformly rotating magnetic field. It is demonstrated that the synchronized translational and rotational oscillations of these particles are accompanied by their drift in a preferred direction, which occurs under the action of the Magnus force. We calculate both analytically and numerically the drift velocity of particles characterized by single-domain cores and nonmagnetic shells and show that there are two types of drift, unidirectional and bidirectional, which can be realized in suspensions composed of particles with different core-shell ratios. The possibility of using the phenomenon of bidirectional drift for the separation of core-shell particles in suspensions is also discussed.

Writing and reading training effects on font type and size preferences by students with low vision.

Science.gov (United States)

Atasavun Uysal, Songül; Düger, Tülin

2012-06-01

The effect of writing and reading training on preferred font type and size in low-vision students was evaluated in 35 children. An ophthalmologist confirmed low vision according to ICD-10-CM. Children identified the font type and size they could best read. The writing subtest of the Jebsen-Taylor Hand Function Test, read in 1 min., and legibility as measured by the number of readable written letters were used in evaluating the children. A writing and reading treatment program was conducted, beginning with the child's preferred font type and size, for 3 months, 2 days per week, for 45 min. per day at the child's school. Before treatment, the most preferred font type was Verdana; after treatment, the preferred font type and size changed. Students had gained reading and writing speed after training, but their writing legibility was not significantly better. Training might affect the preferred font type and size of students with low vision. Surprisingly, serif and sans-serif fonts were preferred about equally after treatment.

As fontes digitais e o ofício de historiador

Directory of Open Access Journals (Sweden)

Micael Alvino Silva

2015-07-01

Full Text Available A depender do objeto de pesquisa, o historiador pode trabalhar a partir de diversas tipologias de fontes que podem variar desde documentos oficiais ou privados, fotografias, áudio, obras literárias ou de arte, cartas, diários, discursos, testamentos, inventários, processos criminais ou administrativos, etc. Para complementar e ampliar ainda mais as possibilidades, o avanço da tecnologia nas últimas décadas tem disponibilizado o acesso a enorme quantidade de acervos e fontes digitais. Pelo menos desde a década de 1970 alguns historiadores já refletem sobre o uso da informática e dos computadores na pesquisa histórica e, particularmente, nossa pesquisa de doutorado nos levou a refletir sobre as fontes digitais em função de nossa pesquisa em três acervos online essenciais ao nosso trabalho. Este artigo pretende analisar os acervos digitais utilizados e refletir com eles sobre o ofício de historiador no século XXI.

Fontes de crescimento da agricultura do Nordeste : 1970-1999

OpenAIRE

Correia Leitão, Janete

2002-01-01

Neste trabalho analisa-se a evolução da produção agrícola no Nordeste brasileiro e suas fontes de crescimento nas últimas três décadas. Consideramse como fontes de crescimento as mudanças verificadas: a) na área cultivada, b) nos rendimentos por hectare, c) na localização geográfica da produção, ou seja, a mudança na proporção da área cultivada de determinada lavoura cultivada em vários Estados, e d) na composição da produção que resulta de alterações na proporção da área to...

FONTES E TRANSPORTE DE METAIS PESADOS PARA ENSEADA DE JURUJUBA (BAIA DE GUANABARA RJ - BRASIL

Directory of Open Access Journals (Sweden)

José Antônio Baptista Neto

2005-12-01

Full Text Available As fontes de sedimentos e metais pesados para um estuário urbanizado são complexas e difusas. Esta pesquisa tem como objetivo acessar as principais fontes de metais pesados para a enseada de Jurujuba (RJ. Analisaram- se as concentrações dos elementos Cr, Cu, Ni, Pb, Zn e Fe, em amostras de solo, rios e escoamento superficial urbano, bem como sedimentos de marinas. Apesar de se poderem distinguir as fontes naturais das antrópicas de metais pesados para a Enseada de Jurujuba, é evidente que os processos de urbanização são os principais responsáveis pelas maiores concentrações de metais pesados para a enseada, através de rios e escoamento superficial urbano. No entanto, não se podem desprezar a deposição atmosférica e as atividades náuticas como importantes fontes de poluição.Palavras-chave: fontes de sedimentos, poluição de metais pesados, Enseada de Jurujuba, processo de urbanização.

The Effect of a Specialized Dyslexia Font, Opendyslexic, on Reading Rate and Accuracy

Science.gov (United States)

Wery, Jessica J.; Diliberto, Jennifer A.

2017-01-01

A single-subject alternating treatment design was used to investigate the extent to which a specialized dyslexia font, OpenDyslexic, impacted reading rate or accuracy compared to two commonly used fonts when used with elementary students identified as having dyslexia. OpenDyslexic was compared to Arial and Times New Roman in three reading tasks:…

A New Option for the Reconstruction of Primary or Recurrent Ischial Pressure Sores: Hamstring-Adductor Magnus Muscle Advancement Flap and Direct Closure.

Science.gov (United States)

Burm, Jin Sik; Hwang, Jungil; Lee, Yung Ki

2018-04-01

Owing to the high recurrence rates of ischial pressure sores, surgeons should consider the possibility of future secondary flap surgery during flap selection. The purpose of this article is to present a new surgical option for the reconstruction of primary or recurrent ischial pressure sores using a simple hamstring-adductor magnus advancement flap and direct closure. After horizontal fusiform skin excision, complete bursa excision and ischiectomy were performed. The tenomuscular origin of the adductor magnus and the conjoined tenomuscular origin of the biceps femoris long head and semitendinosus were isolated and completely detached from the inferior border of the ischial tuberosity. They were then advanced in a cephalad direction without detachment of the distal tendon or muscle and securely affixed to the sacrotuberous ligament. The wound was directly closed without further incision or dissection. Twelve ischial pressure sores (6 primary and 6 recurrent; 12 patients) were surgically corrected. The follow-up period was 12 to 65 months. All patients healed successfully without early postoperative complications, such as hematoma, seroma, infection, wound dehiscence, or partial necrosis. Late complications included wound disruption 5 weeks after surgery that spontaneously healed in 1 case and recurrence 3 years later in another case. The new surgical option presented herein, which involves hamstring-adductor magnus advancement flap and direct closure, is a simple and reliable method for providing sufficient muscle bulk to fill the dead space and proper padding to the bone stump while preserving the main vascular perforators and pedicles as well as future surgical options.

An eye movement study for identification of suitable font characters for presentation on a computer screen.

Science.gov (United States)

Banerjee, Jayeeta; Majumdar, Dhurjati; Majumdar, Deepti; Pal, Madhu Sudan

2010-06-01

We are experiencing a shifting of media: from the printed paper to the computer screen. This transition is modifying the process of how we read and understand a text. It is very difficult to conclude on suitability of font characters based upon subjective evaluation method only. Present study evaluates the effect of font type on human cognitive workload during perception of individual alphabets on a computer screen. Twenty six young subjects volunteered for this study. Here, subjects have been shown individual characters of different font types and their eye movements have been recorded. A binocular eye movement recorder was used for eye movement recording. The results showed that different eye movement parameters such as pupil diameter, number of fixations, fixation duration were less for font type Verdana. The present study recommends the use of font type Verdana for presentation of individual alphabets on various electronic displays in order to reduce cognitive workload.

The Optimum Font Size and Type for Students Aged 9-12 Reading Arabic Characters on Screen: A Case Study

Science.gov (United States)

Abubaker, A. A.; Lu, J.

2012-05-01

More and more, interest in the way data is displayed on screen has increased, especially with the increase in the number of people using e-text for learning purposes. So, this requires more focus on factors that affect screen legibility. Text display factors, such as font size, line length and font type, have an impact on reading online. Two font types [Arabic Traditional and Simplified Arabic] in four different sizes [10, 14, 16 and 18] are measured using Arabic text. On-line processes were measured using reading-aloud technique. Accuracy of reading was also measured by the average of errors that students made when reading the text, while reading speed was tested by the time it took students to read the text. However, results indicated that Arabic text in font size 10 is not readable to students aged 10 to 12. On the other hand, font sizes sixteen and eighteen are more readable than any smaller-sized font, the averages of error size 18 improve in all font types, while age has a significant impact on reading speed. Simplified Arabic font is reported as readable to students aged 10-12, especially in sizes 14 and 18.

Magnus force, Aharonov-Bohm effect, and berry phase in superfluids

International Nuclear Information System (INIS)

Sonin, E.

2001-01-01

The present paper is an attempt to bring together two points of view in order to find a source of disagreement. I restrict myself with the problem of the Galilean invariant quantum Bose-liquid described by the Gross-Pitaevskii theory. At large scales the theory yields equations of the hydrodynamics of an ideal inviscous liquid. In presence of an ensemble of sound waves (phonons) with the Planck distribution, which is characterized by a locally defined normal velocity, one obtains the two-fluid hydrodynamics. The momentum balance in the area around a moving vortex demonstrates the existence of the Iordanskii force. I also discuss the Berry phase. The Berry phase and the Magnus forces are proportional to the total current circulation at large distances. But the total current circulation contains a normal-fluid contribution, which is proportional to the Iordanski force. Taking this contribution into account, the Berry-phase analysis agrees with the momentum-balance approach. (orig.)

Modified geometrical optics of a smoothly inhomogeneous isotropic medium: The anisotropy, Berry phase, and the optical Magnus effect

International Nuclear Information System (INIS)

Bliokh, K.Yu.; Bliokh, Yu.P.

2004-01-01

We present a modification of the geometrical optics method, which allows one to properly separate the complex amplitude and the phase of the wave solution. Applying this modification to a smoothly inhomogeneous isotropic medium, we show that in the first geometrical optics approximation the medium is weakly anisotropic. The refractive index, being dependent on the direction of the wave vector, contains the correction, which is proportional to the Berry geometric phase. Two independent eigenmodes of right-hand and left-hand circular polarizations exist in the medium. Their group velocities and phase velocities differ. The difference in the group velocities results in the shift of the rays of different polarizations (the optical Magnus effect). The difference in the phase velocities causes an increase of the Berry phase along with the interference of two modes leading to the familiar Rytov law about the rotation of the polarization plane of a wave. The theory developed suggests that both the optical Magnus effect and the Berry phase are accompanying nonlocal topological effects. In this paper the Hamilton ray equations giving a unified description for both of these phenomena have been derived and also a novel splitting effect for a ray of noncircular polarization has been predicted. Specific examples are also discussed

Modified geometrical optics of a smoothly inhomogeneous isotropic medium: the anisotropy, Berry phase, and the optical Magnus effect.

Science.gov (United States)

Bliokh, K Yu; Bliokh, Yu P

2004-08-01

We present a modification of the geometrical optics method, which allows one to properly separate the complex amplitude and the phase of the wave solution. Appling this modification to a smoothly inhomogeneous isotropic medium, we show that in the first geometrical optics approximation the medium is weakly anisotropic. The refractive index, being dependent on the direction of the wave vector, contains the correction, which is proportional to the Berry geometric phase. Two independent eigenmodes of right-hand and left-hand circular polarizations exist in the medium. Their group velocities and phase velocities differ. The difference in the group velocities results in the shift of the rays of different polarizations (the optical Magnus effect). The difference in the phase velocities causes an increase of the Berry phase along with the interference of two modes leading to the familiar Rytov law about the rotation of the polarization plane of a wave. The theory developed suggests that both the optical Magnus effect and the Berry phase are accompanying nonlocal topological effects. In this paper the Hamilton ray equations giving a unified description for both of these phenomena have been derived and also a novel splitting effect for a ray of noncircular polarization has been predicted. Specific examples are also discussed.

The optimal viewing position effect in printed versus cursive words: Evidence of a reading cost for the cursive font.

Science.gov (United States)

Danna, Jérémy; Massendari, Delphine; Furnari, Benjamin; Ducrot, Stéphanie

2018-06-13

Two eye-movement experiments were conducted to examine the effects of font type on the recognition of words presented in central vision, using a variable-viewing-position technique. Two main questions were addressed: (1) Is the optimal viewing position (OVP) for word recognition modulated by font type? (2) Is the cursive font more appropriate than the printed font in word recognition in children who exclusively write using a cursive script? In order to disentangle the role of perceptual difficulty associated with the cursive font and the impact of writing habits, we tested French adults (Experiment 1) and second-grade French children, the latter having exclusively learned to write in cursive (Experiment 2). Results revealed that the printed font is more appropriate than the cursive for recognizing words in both adults and children: adults were slightly less accurate in cursive than in printed stimuli recognition and children were slower to identify cursive stimuli than printed stimuli. Eye-movement measures also revealed that the OVP curves were flattened in cursive font in both adults and children. We concluded that the perceptual difficulty of the cursive font degrades word recognition by impacting the OVP stability. Copyright © 2018 Elsevier B.V. All rights reserved.

Effect of arginine vasopressin in the nucleus raphe magnus on antinociception in the rat.

Science.gov (United States)

Yang, Jun; Chen, Jian-Min; Liu, Wen-Yan; Song, Cao-You; Wang, Cheng-Hai; Lin, Bao-Cheng

2006-09-01

Previous work has shown that arginine vasopressin (AVP) regulates antinociception through brain nuclei rather than the spinal cord and peripheral organs. The present study investigated the nociceptive effect of AVP in the nucleus raphe magnus (NRM) of the rat. Microinjection of AVP into the NRM increased pain threshold in a dose-dependent manner, while local administration of AVP-receptor antagonist-d(CH2)5Tyr(Et)DAVP decreased the pain threshold. Pain stimulation elevated AVP concentration in the NRM perfuse liquid. NRM pretreatment with AVP-receptor antagonist completely reversed AVP's effect on pain threshold in the NRM. The data suggest that AVP in the NRM is involved in antinociception.

Jyske fonte med modstillede løver –

DEFF Research Database (Denmark)

Kaspersen, Søren

2016-01-01

, from the Sumerian to Western Europe in the Romanesque period. Taking these things in consideration, the confronted lions on the baptismal fonts are analyzed in relation to different schemes and contexts: flanking a human head, either with their heads en face or in profile, often with their tongues...

O contexto-fonte e o ensino de línguas

Directory of Open Access Journals (Sweden)

Silvana Serrani-Infante

2002-10-01

Full Text Available No texto, discute-se a noção de contexto-fonte, tendo em vista o papel crucial de fatores interculturais no ensino de línguas não maternas (fator incidente, também, em casos do ensino de língua materna. Na primeira parte, é examinada a complexidade da relação contexto-fonte/contexto-alvo, à luz da concepção bakhtiniana de contexto e da abordagem processual da linguagem e do sujeito. Propõe-se que um foco maior, nas pesquisas e nas práticas pedagógicas, em relação ao contexto-fonte e a sua pluralidade constitutiva, pode se associar às mobilizações subjetivo-identitárias de decentramento cultural que a relação com outras línguas e culturas propicia. Na segunda parte, a partir de pesquisas sobre leitura em português e espanhol, apontam-se conseqüênciaspara as práticas de escrita em língua-alvo. As conclusões dizem respeito ao questionamento do normativismo e da visão instrumentalista na pedagogia de línguas. 

Font Effects of Chinese Characters and Pseudo-Characters on the N400: Evidence for an Orthographic Processing View

Science.gov (United States)

Lv, Caixia; Wang, Quanhong

2012-01-01

Event-related brain potentials (ERPs) were recorded during a Chinese character decision task to examine whether N400 amplitude is modulated by stimulus font. Results revealed large negative-going ERPs in an N400 time window of 300-500 ms to stimuli presented in degraded Xing Kai Ti (XKT) font compared with more intact Song Ti (ST) font regardless…

[Explicit memory for type font of words in source monitoring and recognition tasks].

Science.gov (United States)

Hatanaka, Yoshiko; Fujita, Tetsuya

2004-02-01

We investigated whether people can consciously remember type fonts of words by methods of examining explicit memory; source-monitoring and old/new-recognition. We set matched, non-matched, and non-studied conditions between the study and the test words using two kinds of type fonts; Gothic and MARU. After studying words in one way of encoding, semantic or physical, subjects in a source-monitoring task made a three way discrimination between new words, Gothic words, and MARU words (Exp. 1). Subjects in an old/new-recognition task indicated whether test words were previously presented or not (Exp. 2). We compared the source judgments with old/new recognition data. As a result, these data showed conscious recollection for type font of words on the source monitoring task and dissociation between source monitoring and old/new recognition performance.

Floquet–Magnus theory and generic transient dynamics in periodically driven many-body quantum systems

International Nuclear Information System (INIS)

Kuwahara, Tomotaka; Mori, Takashi; Saito, Keiji

2016-01-01

This work explores a fundamental dynamical structure for a wide range of many-body quantum systems under periodic driving. Generically, in the thermodynamic limit, such systems are known to heat up to infinite temperature states in the long-time limit irrespective of dynamical details, which kills all the specific properties of the system. In the present study, instead of considering infinitely long-time scale, we aim to provide a general framework to understand the long but finite time behavior, namely the transient dynamics. In our analysis, we focus on the Floquet–Magnus (FM) expansion that gives a formal expression of the effective Hamiltonian on the system. Although in general the full series expansion is not convergent in the thermodynamics limit, we give a clear relationship between the FM expansion and the transient dynamics. More precisely, we rigorously show that a truncated version of the FM expansion accurately describes the exact dynamics for a certain time-scale. Our theory reveals an experimental time-scale for which non-trivial dynamical phenomena can be reliably observed. We discuss several dynamical phenomena, such as the effect of small integrability breaking, efficient numerical simulation of periodically driven systems, dynamical localization and thermalization. Especially on thermalization, we discuss a generic scenario on the prethermalization phenomenon in periodically driven systems. -- Highlights: •A general framework to describe transient dynamics for periodically driven systems. •The theory is applicable to generic quantum many-body systems including long-range interacting systems. •Physical meaning of the truncation of the Floquet–Magnus expansion is rigorously established. •New mechanism of the prethermalization is proposed. •Revealing an experimental time-scale for which non-trivial dynamical phenomena can be reliably observed.

Floquet–Magnus theory and generic transient dynamics in periodically driven many-body quantum systems

Energy Technology Data Exchange (ETDEWEB)

Kuwahara, Tomotaka, E-mail: tomotaka.phys@gmail.com [Department of Physics, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan); WPI, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Mori, Takashi [Department of Physics, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan); Saito, Keiji [Department of Physics, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522 (Japan)

2016-04-15

This work explores a fundamental dynamical structure for a wide range of many-body quantum systems under periodic driving. Generically, in the thermodynamic limit, such systems are known to heat up to infinite temperature states in the long-time limit irrespective of dynamical details, which kills all the specific properties of the system. In the present study, instead of considering infinitely long-time scale, we aim to provide a general framework to understand the long but finite time behavior, namely the transient dynamics. In our analysis, we focus on the Floquet–Magnus (FM) expansion that gives a formal expression of the effective Hamiltonian on the system. Although in general the full series expansion is not convergent in the thermodynamics limit, we give a clear relationship between the FM expansion and the transient dynamics. More precisely, we rigorously show that a truncated version of the FM expansion accurately describes the exact dynamics for a certain time-scale. Our theory reveals an experimental time-scale for which non-trivial dynamical phenomena can be reliably observed. We discuss several dynamical phenomena, such as the effect of small integrability breaking, efficient numerical simulation of periodically driven systems, dynamical localization and thermalization. Especially on thermalization, we discuss a generic scenario on the prethermalization phenomenon in periodically driven systems. -- Highlights: •A general framework to describe transient dynamics for periodically driven systems. •The theory is applicable to generic quantum many-body systems including long-range interacting systems. •Physical meaning of the truncation of the Floquet–Magnus expansion is rigorously established. •New mechanism of the prethermalization is proposed. •Revealing an experimental time-scale for which non-trivial dynamical phenomena can be reliably observed.

The sexologist Albert Moll--between Sigmund Freud and Magnus Hirschfeld.

Science.gov (United States)

Sigusch, Volkmar

2012-04-01

Albert Moll was one of the most influential sexologists during the first three decades of the twentieth century. In contrast to his rivals Sigmund Freud and Magnus Hirschfeld, his achievements have not yet been recognised adequately. The author gives a comparative account of the work of these three protagonists. This shows that Moll formed some ideas which are regarded as psychoanalytical today before Freud, and that he, in contrast to Hirschfeld, was able to reflect critically on contemporary discourses, such as the debates on racial improvement through eugenics. As scientific theories, Freud's psychoanalysis represented the unconscious, fantasy, experience and latency, while Moll's sexology represented consciousness, ontological reality, behaviour and manifestation. Moll's major disagreement with Hirschfeld's sexology was his advocacy of apolitical and impartial science, whereas Hirschfeld's aim was to achieve sexual reforms politically. Added to these differences were strong personal animosities. Freud called Moll a 'beast' and 'pettifogger'; and Moll complained about Hirschfeld's 'problematic' character. When Hirschfeld escaped the Nazi terror and went to Paris, Moll denounced him in order to prevent him rebuilding a new existence in exile.

Crystal Structure of Serine Racemase that Produces Neurotransmitter font-variant:small-caps">d-Serine for Stimulation of the NMDA Receptor

Science.gov (United States)

Goto, Masaru

font-variant:small-caps">d-Serine is an endogenous coagonist for the N-methyl-font-variant:small-caps">d-aspartate receptor and is involved in excitatory neurotransmission in the brain. Mammalian pyridoxal 5’-phosphate-dependent serine racemase, which is localized in the mammalian brain, catalyzes the racemization of font-variant:small-caps">l-serine to yield font-variant:small-caps">d-serine and vice versa. We have determined the structures of three forms of the mammalian enzyme homolog from Schizosaccharomyces pombe. Lys57 and Ser82 located on the protein and solvent sides, respectively, with respect to the cofactor plane, are acid-base catalysts that shuttle protons to the substrate. The modified enzyme, which has a unique lysino-font-variant:small-caps">d-alanyl residue at the active site, also binds the substrate serine in the active site, suggesting that the lysino-font-variant:small-caps">d-alanyl residue acts as a catalytic base in the same manner as Lys57 of the wild type enzyme.

O FILME COMO FONTE DE INFORMAÇÃO APLICADO AO ENSINO DA BIBLIOTECONOMIA

Directory of Open Access Journals (Sweden)

Carla Façanha de Brito

2017-02-01

Full Text Available Trata da experiência com a utilização dos filmes: ‘Central do Brasil’ e ‘Uma Cidade sem Passado’ como ferramenta pedagógica na disciplina Fontes Gerais da Informação do Curso de Biblioteconomia da Universidade Federal do Cariri. Tem como objetivo identificar o filme como metodologia criativa para apoio ao ensino da disciplina de Fontes Gerais da Informação proporcionando aprendizagem e aprofundamento das temáticas. O exercício da aprendizagem passa por uma dinâmica que concerne quatro etapas que vão desde o primeiro contato com a disciplina através do estudo do plano de aula à leitura, análise e discussão do filme. O filme por meio de imagens em movimento, desperta interesse e aponta caminhos para uma discussão que revela a importância das fontes informacionais para otimizar o cotidiano da sociedade e a prática da docência.

Protegendo Fontes: De Leis de Proteção a Wikileaks

Directory of Open Access Journals (Sweden)

Mélanie Dupéré

2015-09-01

Full Text Available Este trabalho se concentra sobre a evolução recente o direito e a capacidade dos jornalistas de proteger o anonimato de suas fontes no Reino Unido, particularmente à luz das revelações de Snowden em junho de 2013, bem como a importância da cooperação entre a organização de mídia online WikiLeaks e as organiza ções noticiosas. O artigo explora duas dificuldades principais enfrentadas por jornalistas: a noção de um privilégio profissional qualificado e a extensão desconhecida de solicitações de acobertamento de divulgação por autoridades públicas envolvendo comunicações dados e metadados. Ao fazê-lo, o estudo comenta o caso Wikileaks, que protege suas fontes anônimas por meio da alta segurança de dados e criptografia. Os resultados tendem a mostrar que a prática de cobertura de vigilância digital de massa de comunicações individuais, incluindo jornalistas, está a minar a proteção da fonte e a ascensão do Wikileaks como um modelo alternativo está desafiando o papel tradicional de jornalistas como mediadores e gatekeepers na era digital.

Efficient theory of dipolar recoupling in solid-state nuclear magnetic resonance of rotating solids using Floquet-Magnus expansion: application on BABA and C7 radiofrequency pulse sequences.

Science.gov (United States)

Mananga, Eugene S; Reid, Alicia E; Charpentier, Thibault

2012-02-01

This article describes the use of an alternative expansion scheme called Floquet-Magnus expansion (FME) to study the dynamics of spin system in solid-state NMR. The main tool used to describe the effect of time-dependent interactions in NMR is the average Hamiltonian theory (AHT). However, some NMR experiments, such as sample rotation and pulse crafting, seem to be more conveniently described using the Floquet theory (FT). Here, we present the first report highlighting the basics of the Floquet-Magnus expansion (FME) scheme and hint at its application on recoupling sequences that excite more efficiently double-quantum coherences, namely BABA and C7 radiofrequency pulse sequences. The use of Λ(n)(t) functions available only in the FME scheme, allows the comparison of the efficiency of BABA and C7 sequences. Copyright © 2011 Elsevier Inc. All rights reserved.

Descoberta de um aglomerado estelar massivo associado a fonte IRAS 16177-5018

Science.gov (United States)

Roman Lopes, A.; Abraham, Z.; Lépine, J. R. D.

2003-08-01

Neste trabalho apresentamos a descoberta de um aglomerado de estrelas jovens e massivas embebido em uma região HII extensa associado com a fonte IRAS 16177-5018, que se apresenta invisível na faixa óptica do espectro eletromagnético, onde a extinção é da ordem de AV = 26 magnitudes. As observações foram feitas com a camera infravermelha (CamIV) do Laboratório Nacional de Astrofísica, Brasil, equipada com um detector Hawaii de HgCdTe de 1024´1024 pixel acoplada ao telescópio de 60 cm Boller & Chivens do IAG. A fotometria obtida a partir das imagens nas bandas J, H e K (filtro estreito) mostrou a presença de fontes com excesso de emissão no infravermelho em 2.2 mm, concentradas em uma área de aproximadamente um minuto de arco quadrado em torno da nebulosa na qual esta embebido o objeto identificado como a fonte IRAS. A fonte IRAS apresenta um índice espectral (entre 2.2 21.3 mm) a = d log(l Fl) / d log l = 4.78, característico de um objeto extremamente jovem com luminosidade bolométrica (obtida da integral da densidade de fluxo entre o infravermelho próximo (1.25mm) e o infravermelho distante (100mm)) de 2.8´105L¤, o qual corresponde a uma estrela da sequência principal de idade zero de cerca de 42 M¤. A partir do diagrama cor-magnitude foi possível classificar a maioria dos membros do aglomerado como estrelas massivas mais luminosas que tipo espectral B5.

Fontes e modos de aplicação de boro na cultura do eucalipto

Directory of Open Access Journals (Sweden)

Thiago de Souza Celestrino

2015-12-01

Full Text Available Os solos de Cerrado apresentam baixo teor de boro (B no solo, sendo comum a suplementação deste elemento através da adubação via solo e/ou foliar. Portanto, é importante definir qual o melhor modo de aplicação e fonte de B para o bom desenvolvimento do eucalipto. Assim, o objetivo deste trabalho foi comparar o efeito de fontes de B com alta e baixa solubilidade na cultura do eucalipto, bem como a aplicação foliar do micronutriente. O experimento foi conduzido em uma área com latitude 20o 34’ S e longitude 51o 50’ O e altitude de 305 m, no período de 01/2012 a 02/2014. O delineamento experimental foi o de blocos casualizados com seis tratamentos e cinco repetições, dispostos em um esquema fatorial de 3 x 2, sendo: 0 kg ha-1 de B, 1 kg ha-1 de B utilizando como fonte o ácido bórico (alta solubilidade, 17% B ou1 kg ha-1 de B utilizando como fonte o borogran (baixa solubilidade, 10% B, aplicados no sulco de plantio, com ou sem aplicações de ácido bórico via foliar na dose de 0,5% de ácido bórico na calda com volume de 250 L ha-1. Com a omissão de B via foliar houve incremento em altura de plantas nos tratamentos que receberam a aplicação do micronutriente no plantio, diferindo significativamente da testemunha. Porém, ambas as fontes, independente da solubilidade, apresentaram resultados semelhantes. As duas aplicações de B via foliar foram suficientes para que houvesse incremento em altura de plantas, quando comparadas aos tratamentos que não receberam aplicação de B no plantio, aos 21 meses. Aos 24 meses após o plantio foi constatado aumento no teor foliar de B nos tratamentos que receberam aplicação foliar. No entanto, esta não incrementou o crescimento, DAP e volume de madeira do clone de eucalipto. A aplicação de B no plantio, independente da fonte utilizada, assim como aplicação foliar do elemento, foram suficientes para reduzir os sintomas de deficiência de B. Com relação às fontes utilizadas no

Letter processing and font information during reading: beyond distinctiveness, where vision meets design.

Science.gov (United States)

Sanocki, Thomas; Dyson, Mary C

2012-01-01

Letter identification is a critical front end of the reading process. In general, conceptualizations of the identification process have emphasized arbitrary sets of distinctive features. However, a richer view of letter processing incorporates principles from the field of type design, including an emphasis on uniformities across letters within a font. The importance of uniformities is supported by a small body of research indicating that consistency of font increases letter identification efficiency. We review design concepts and the relevant literature, with the goal of stimulating further thinking about letter processing during reading.

Comparative analysis between different font types and letter styles using a nonlinear invariant digital correlation

Science.gov (United States)

Coronel-Beltrán, Ángel; Álvarez-Borrego, Josué

2010-01-01

We present, in this paper, a comparative analysis of the letters in Times New Roman (TNR), Courier New (CN) and Arial (Ar) font types in plain and italic style and the effects of five foreground/background color combinations using an invariant digital correlation system with a nonlinear filter with k = 0.3. The evaluation of the output plane with this filter is given by the peak-to-correlation energy (PCE) metric. The results show that the letters in TNR font have a better mean PCE value when compared with the CN and Ar fonts. This result is in agreement with some studies on text legibility and for readability where the reaction time (RT) of some participant individuals reading a text is measured. We conclude that the PCE metric is proportional to 1/RT.

Font size and viewing distance of handheld smart phones.

Science.gov (United States)

Bababekova, Yuliya; Rosenfield, Mark; Hue, Jennifer E; Huang, Rae R

2011-07-01

The use of handheld smart phones for written communication is becoming ubiquitous in modern society. The relatively small screens found in these devices may necessitate close working distances and small text sizes, which can increase the demands placed on accommodation and vergence. Font size and viewing distance were measured while subjects used handheld electronic devices in two separate trials. In the first study (n=129), subjects were asked to show a typical text message on their own personal phone and to hold the device "as if they were about to read a text message." A second trial was conducted in a similar manner except subjects (n=100) were asked to view a specific web page from the internet. For text messages and internet viewing, the mean font size was 1.1 M (range, 0.7 to 2.1 M) and 0.8 M (range, 0.3 to 1.4 M), respectively. The mean working distance for text messages and internet viewing was 36.2 cm (range, 17.5 to 58.0 cm) and 32.2 cm (range, 19 to 60 cm), respectively. The mean font size for both conditions was comparable with newspaper print, although some subjects viewed text that was considerably smaller. However, the mean working distances were closer than the typical near working distance of 40 cm for adults when viewing hardcopy text. These close distances place increased demands on both accommodation and vergence, which could exacerbate symptoms. Practitioners need to consider the closer distances adopted while viewing material on smart phones when examining patients and prescribing refractive corrections for use at near, as well as when treating patients presenting with asthenopia associated with nearwork. Copyright © 2011 American Academy of Optometry

Topological spin transport of photons: the optical Magnus effect and Berry phase

International Nuclear Information System (INIS)

Bliokh, K.Yu.; Bliokh, Yu.P.

2004-01-01

The Letter develops a modified geometrical optics (GO) of smoothly inhomogeneous isotropic medium, which takes into account two topological phenomena: Berry phase and the optical Magnus effect. Taking into account the correspondence between a quasi-classical motion of a quantum particle with a spin and GO of an electromagnetic wave in smoothly inhomogeneous media, we have introduced the standard gauge potential associated with the degeneracy in the wave momentum space. This potential corresponds to the magnetic-monopole-like field (Berry curvature), which causes the topological spin (polarization) transport of photons. The deviations of waves of right-hand and left-hand polarization occur in the opposite directions and orthogonally to the principal direction of motion. This produces a spin current directed across the principal motion. The situation is similar to the anomalous Hall effect for electrons. In addition, a simple scheme of the experiment allowing one to observe the topological spin splitting of photons has been suggested

Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect

Science.gov (United States)

Okawa, Hirotada; Cardoso, Vitor

2014-11-01

Scalar fields pervade theoretical physics and are a fundamental ingredient to solve the dark matter problem, to realize the Peccei-Quinn mechanism in QCD or the string-axiverse scenario. They are also a useful proxy for more complex matter interactions, such as accretion disks or matter in extreme conditions. Here, we study the collision between scalar "clouds" and rotating black holes. For the first time we are able to compare analytic estimates and strong field, nonlinear numerical calculations for this problem. As the black hole pierces through the cloud it accretes according to the Bondi-Hoyle prediction, but is deflected through a purely kinematic gravitational "anti-Magnus" effect, which we predict to be present also during the interaction of black holes with accretion disks. After the interaction is over, we find large recoil velocities in the transverse direction. The end-state of the process belongs to the vacuum Kerr family if the scalar is massless, but can be a hairy black hole when the scalar is massive.

Selection of the optimum font type and size interface for on screen continuous reading by young adults: an ergonomic approach.

Science.gov (United States)

Banerjee, Jayeeta; Bhattacharyya, Moushum

2011-12-01

There is a rapid shifting of media: from printed paper to computer screens. This transition is modifying the process of how we read and understand text. The efficiency of reading is dependent on how ergonomically the visual information is presented. Font types and size characteristics have been shown to affect reading. A detailed investigation of the effect of the font type and size on reading on computer screens has been carried out by using subjective, objective and physiological evaluation methods on young adults. A group of young participants volunteered for this study. Two types of fonts were used: Serif fonts (Times New Roman, Georgia, Courier New) and Sans serif fonts (Verdana, Arial, Tahoma). All fonts were presented in 10, 12 and 14 point sizes. This study used a 6 X 3 (font type X size) design matrix. Participants read 18 passages of approximately the same length and reading level on a computer monitor. Reading time, ranking and overall mental workload were measured. Eye movements were recorded by a binocular eye movement recorder. Reading time was minimum for Courier New l4 point. The participants' ranking was highest and mental workload was least for Verdana 14 point. The pupil diameter, fixation duration and gaze duration were least for Courier New 14 point. The present study recommends using 14 point sized fonts for reading on computer screen. Courier New is recommended for fast reading while for on screen presentation Verdana is recommended. The outcome of this study will help as a guideline to all the PC users, software developers, web page designers and computer industry as a whole.

On the Fonte structure between a pair of Banach spaces

International Nuclear Information System (INIS)

Sharma, C.S.

1990-01-01

The main purpose of the present note is to establish the essential equivalence of the adjoint of a semilinear map defined through the Fonte structure between a pair of Banach spaces and the adjoint of the same map defined by Pian and the present author

A New Pixels Flipping Method for Huge Watermarking Capacity of the Invoice Font Image

Directory of Open Access Journals (Sweden)

Li Li

2014-01-01

Full Text Available Invoice printing just has two-color printing, so invoice font image can be seen as binary image. To embed watermarks into invoice image, the pixels need to be flipped. The more huge the watermark is, the more the pixels need to be flipped. We proposed a new pixels flipping method in invoice image for huge watermarking capacity. The pixels flipping method includes one novel interpolation method for binary image, one flippable pixels evaluation mechanism, and one denoising method based on gravity center and chaos degree. The proposed interpolation method ensures that the invoice image keeps features well after scaling. The flippable pixels evaluation mechanism ensures that the pixels keep better connectivity and smoothness and the pattern has highest structural similarity after flipping. The proposed denoising method makes invoice font image smoother and fiter for human vision. Experiments show that the proposed flipping method not only keeps the invoice font structure well but also improves watermarking capacity.

A new pixels flipping method for huge watermarking capacity of the invoice font image.

Science.gov (United States)

Li, Li; Hou, Qingzheng; Lu, Jianfeng; Xu, Qishuai; Dai, Junping; Mao, Xiaoyang; Chang, Chin-Chen

2014-01-01

Invoice printing just has two-color printing, so invoice font image can be seen as binary image. To embed watermarks into invoice image, the pixels need to be flipped. The more huge the watermark is, the more the pixels need to be flipped. We proposed a new pixels flipping method in invoice image for huge watermarking capacity. The pixels flipping method includes one novel interpolation method for binary image, one flippable pixels evaluation mechanism, and one denoising method based on gravity center and chaos degree. The proposed interpolation method ensures that the invoice image keeps features well after scaling. The flippable pixels evaluation mechanism ensures that the pixels keep better connectivity and smoothness and the pattern has highest structural similarity after flipping. The proposed denoising method makes invoice font image smoother and fiter for human vision. Experiments show that the proposed flipping method not only keeps the invoice font structure well but also improves watermarking capacity.

Composition Characteristics of Olivier Messiaen’s Later Orchestral Works%梅西安晚期管弦乐作品的创作特征

Institute of Scientific and Technical Information of China (English)

汪胜付

2016-01-01

Olivier Messiaen (1908~1992 ) was a great French composer of the 20th century. This paper discussed his later orchestral works composed after the 1970s, which were rarely analyzed or studied in China. Main composition characteristics of Messiaen’s last six orchestral works were analyzed and summarized as follows. First-ly, in the aspect of structure thinking, his works used multi-materials, multi-color juxtaposition and symmetry. Secondly, his composition was more extensively influ-enced by synaesthesia. Thirdly, symphonic characteristics of birdsongs were fully demonstrated in his last six orchestral works. Finally, just like his other works, these six works were deeply influenced by religion or relevant themes.%文章选取了国内20世纪法国作曲家奥利维耶·梅西安(Olivier Messiaen，1908～1992)在70年代以后创作的晚期管弦乐作品为研究对象，归纳总结了梅西安晚期的六部管弦乐作品的在创作上的主要特点与整体特征。首先，在结构思维上主要体现出多材料、多色彩并置与对称性。其次，在音乐创作上受到了更宽泛的“联觉”影响。再次，晚期六部管弦乐作品充分表现出鸟歌的交响性。最后，这六部管弦乐作品深远地受到宗教题材影响。

Fontes binárias supermoles de raios X

Science.gov (United States)

Pires, A. M.; Janot Pacheco, E.

2003-08-01

Estuda-se as características físicas das fontes supermoles (de raios X (SSS), utilizando dados ópticos e em altas energias, no âmbito de um trabalho de IC. Trata-se de binárias que apresentam espectro X muito mole, baixas temperaturas e altas luminosidades bolométricas. Esse sistemas são compostos por uma anã branca realizando fusão em sua superfície, a partir de matéria perdida pela estrela companheira. Os resíduos de fusão se acumulam na superfície da anã branca, e essa pode ultrapassar o limite de Chadrasekhar, produzir um colapso gravitacional, sendo esse um dos cenários propostos para as explosões de SN Ia. Apresentamos nesta comunicação o estado da arte das características físicas das fontes SSS, situando-as no âmbito das VCs. Procuramos também situar esses objetos em relação às variáveis galácticas V Sge, na medida em que os dois grupos apresentam certas caracerísticas bastante semelhantes.A metodologia adotada é aquela pedagógico-cognitiva clássica de um trabalho de IC na área de ciências exatas.

A familiar font drives early emotional effects in word recognition.

Science.gov (United States)

Kuchinke, Lars; Krause, Beatrix; Fritsch, Nathalie; Briesemeister, Benny B

2014-10-01

The emotional connotation of a word is known to shift the process of word recognition. Using the electroencephalographic event-related potentials (ERPs) approach it has been documented that early attentional processing of high-arousing negative words is shifted at a stage of processing where a presented word cannot have been fully identified. Contextual learning has been discussed to contribute to these effects. The present study shows that a manipulation of the familiarity with a word's shape interferes with these earliest emotional ERP effects. Presenting high-arousing negative and neutral words in a familiar or an unfamiliar font results in very early emotion differences only in case of familiar shapes, whereas later processing stages reveal similar emotional effects in both font conditions. Because these early emotion-related differences predict later behavioral differences, it is suggested that contextual learning of emotional valence comprises more visual features than previously expected to guide early visual-sensory processing. Copyright © 2014 Elsevier Inc. All rights reserved.

Seeking Visual Clarity an Examination of Font Legibility and Visual Presentation for Elementary-Level Special Education Students

Science.gov (United States)

Haugen, Theresa Tetrick

2010-01-01

This study examined font and layout alternatives for mild special education children in third through sixth grade. Of this group, twelve were boys and two were girls, seven were suburban students and seven were urban students. During the first phase, the students were observed reading four different fonts, then the participant named the easiest…

O estudo das fontes estrangeiras na obra de Machado de Assis e o caso italiano

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Eugênio Vinci de Moraes

2008-04-01

Full Text Available Os estudos das fontes italianas na obra de Machado de Assis ainda são uma esquecida árvore no meio da floresta dos estudos machadianos. Três aspectos explicam talvez a posição marginal dessas pesquisas: primeiro, o número menor de refer~encias italianas perante as inglesas e francesas, por exemplo; segundo, a ausência de estudos de maior fôlego; por último, por essa fonte não tocar nas questões centrais da obra de Machado. Neste artigo pretende-se mostrar de que forma trabalhar com as fontes em Machado, com base em três modelos de análise, e também de que forma esses estudos podem tocar, sim, em pontos fundamentais da obra de Machado, desde que não se desdenhe a já alentada e qualificada fortuna crítica do escritor fluminense.

Vortex currents in turbulent superfluid and classical fluid channel flow, the magnus effect, and Goldstone boson fields

International Nuclear Information System (INIS)

Huggins, E.R.

1994-01-01

Expressing hydrodynamics in terms of the flow of vorticity, using the vortex current tensor, helps unify the picture of turbulent channel flow for viscous fluids and for superfluids. In both, eddy viscosity plays a major role in energy dissipation, and in both there is a similar cross stream flow of vorticity, which in the case of superfluids leads to the Josephson frequency. The vortex current tensor, which was introduced in an earlier paper to derive an exact three dimensional Magnus effect formula, turns out to be the classical hydrodynamic limit of the vortex current that is the source for a classical Goldstone-boson field

A modified precise integration method based on Magnus expansion for transient response analysis of time varying dynamical structure

International Nuclear Information System (INIS)

Yue, Cong; Ren, Xingmin; Yang, Yongfeng; Deng, Wangqun

2016-01-01

This paper provides a precise and efficacious methodology for manifesting forced vibration response with respect to the time-variant linear rotational structure subjected to unbalanced excitation. A modified algorithm based on time step precise integration method and Magnus expansion is developed for instantaneous dynamic problems. The iterative solution is achieved by the ideology of transition and dimensional increment matrix. Numerical examples on a typical accelerating rotation system considering gyroscopic moment and mass unbalance force comparatively demonstrate the validity, effectiveness and accuracy with Newmark-β method. It is shown that the proposed algorithm has high accuracy without loss efficiency.

FONTES ALTERNATIVAS E RENOVÁVEIS DE ENERGIA NO BRASIL: MÉTODOS E BENEFÍCIOS AMBIENTAIS

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Raphael Santos do Nascimento

2017-01-01

Full Text Available Resumo: Atualmente, os recursos renováveis tem sido o foco de inúmeras pesquisas, devido à preocupação com o meio ambiente. Nesse sentido, várias são as razões para a implementação de fontes renováveis de energia. Assim, o objetivo desse estudo foi identificar os diferentes tipos de energias renováveis existentes no Brasil, bem como, a aplicabilidade e o impacto ambiental gerado por essas fontes. O trabalho foi desenvolvido sobre os preceitos do estudo exploratório por meio de uma pesquisa bibliográfica. Foram identificados cinco tipos de energias alternativas renováveis no Brasil, Biomassa, Eólica, Geotérmica, Hidráulica, Marítima e Solar. A energia Solar foi considerada a mais viável em função de sua aplicabilidade, mesmo em locais isolados, do potencial encontrado em todo território, e, a redução dos impactos ambientais. Foram consideradas expressivas as diferenças de impacto ambiental entre as fontes estudadas e as fontes não-renováveis. Ainda, identificou-se que mesmo com diversas alternativas energéticas e um imenso potencial de recursos renováveis, a utilização desses recursos no Brasil deve ser considerada insuficiente para geração de energia.

El món del consum: una aproximació a les fonts d'informació

OpenAIRE

Llorens, Maria Josep; Fullà i Bohigas, Núria

1997-01-01

Aquest article pretén introduir el lector en la temàtica del consum i en les seves fonts d'informació. S'ha estructurat en base a les diferents tipologies d'informació, citant, en cada cas, una mostra de les fonts documentals més representatives. Finalment, s'hi exposa la situació dels centres de recursos documentals sobre aquest tema a Catalunya i es facilita una llista de biblioteques de temàtica complementària.

The effects of luminance contrast, colour combinations, font, and search time on brand icon legibility.

Science.gov (United States)

Ko, Ya-Hsien

2017-11-01

This study explored and identified the effects of luminance contrast, colour combinations, font, and search time on brand icon legibility. A total of 108 participants took part in the experiment. As designed, legibility was measured as a function of the following independent variables: four levels of luminance contrast, sixteen target/background colour combinations, two fonts, and three search times. The results showed that a luminance contrast of 18:1 provided readers with the best legibility. Yellow on black, yellow on blue, and white on blue were the three most legible colour combinations. One of this study's unique findings was that colour combinations may play an even more important role than luminance contrast in the overall legibility of brand icon design. The 12-s search time corresponded with the highest legibility. Arial font was more legible than Times New Roman. These results provide some guidance for brand icon and product advertisement design. Copyright © 2017 Elsevier Ltd. All rights reserved.

Perfil lipídico tecidual de ratos alimentados com diferentes fontes lipídicas

OpenAIRE

Almeida,Martha Elisa Ferreira de; Queiroz,José Humberto de; Queiroz,Maria Eliana Lopes Ribeiro de; Costa,Neuza Maria Brunoro; Matta,Sérgio Luis Pinto

2009-01-01

OBJETIVO:Determinar se fontes lipídicas com diferentes razões de ácidos graxos insaturados e saturados (PUFA+MUFA)/SFA na dieta altera o perfil lipídico tecidual, a concentração de lipídios (mg/g) dos tecidos hepáticos e mesentérico e a digestibilidade lipídica. MÉTODOS: Foi realizada cromatografia gasosa para determinar o perfil de ácidos graxos nos tecidos hepático e adiposo de ratos alimentados com diferentes fontes lipídicas. O coeficiente de digestibilidade foi determinado a partir da re...

Muusikamaailm. Magnus Lindbergi festivali jätk. Jonas Forsell taas ooperijuhiks. Marcello Panni uus ooper. György Kurtagile Sonningi preemia. Peter Gradenwitz lahkunud / Priit Kuusk

Index Scriptorium Estoniae

Kuusk, Priit, 1938-

2002-01-01

Soome helilooja Magnus Lindbergi mitmeid teoseid esitatakse Inglismaal. Rootsi heliloojast Jonas Forsellist sai jaanuaris Kopenhaageni trupi Den Anden Opera kunstiline juht. Firenzes tuli esiettekandele Marcello Panni uus ooper "The Banquet ئ Talking about Love". Helilooja György Kurtag pälvis Taani 2003.a. Leonie Sonningi muusikapreemia. 91aastasena suri muusikateadlane Peter Gradenwitz

Between Ideologies and a Hard Place: Hans Magnus Enzensberger's Utopian Pragmatist Poetics

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Jonathan Monroe

1997-01-01

Full Text Available The marginalization of poetry in North American culture makes it difficult to appreciate fully on this side of the Atlantic the importance of Hans Magnus Enzensberger's literary and cultural contributions over the past four decades. Working against familiar cultural encodings that would align poetry uncritically with the "personal" and prose with the "political," his oeuvre makes a strong case for poetry and critical prose as vitally complementary activities. In his 1991 collection of poems, Zukunftsmusik (Future Music and his 1993 prose collection, Civil Wars: From L.A. to Bosnia , Enzensberger renews his longstanding commitment to "the process / of becoming human." Taken together, the two collections suggest the importance of maintaining connections across genres and their constituencies. In the context of the chaotic civil wars and "great migrations" that have shaped global culture since 1989, Enzensberger's thoroughgoing attention to internal differences within language and culture offers a model of hopeful resistance to an increasingly unreflective culture. His recent writing calls us to look carefully into what poetry will become, and for whom, in the wake of 1989.

JUS COGENS E A VALIDADE NORMATIVA: RUPTURA AO PARADIGMA DAS TRADICIONAIS FONTES NA TEORIA DO DIREITO INTERNACIONAL

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Leonam Baesso da Silva Liziero

2015-07-01

Full Text Available O presente artigo problematizará o papel do jus cogens como uma fonte do direito internacional público, de reconhecimento posterior ao estabelecido pelo Estatuto da Corte Internacional de Justiça. Neste aspecto, é necessário se discutir o que representa o denominado jus cogens dentro da atual configuração do direito internacional público. Inicialmente será debatido a respeito de uma nova visão das fontes do direito internacional público que, a partir de 1945 com o advento do sistema Nações Unidas e posteriormente com a implementação das normas internacionais humanitárias e de proteção aos direitos humanos, é necessária para a compreensão da sociedade internacional contemporânea. O que se defende é a obsolescência do direito internacional composto apenas pelas fontes reconhecidas pelo Estatuto da Corte Internacional de Justiça. Posteriormente será discutido o lugar que ele ocupa no direito internacional, se é fonte ou apenas um critério de resolução de antinomias.

A história cultural e as fontes de pesquisa

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Alboni Marisa Dudeque Pianovski Vieira

2015-07-01

Full Text Available Na primeira metade do século XX, a história “abriu-se” para as demais ciências, com uma proposta de diálogo interdisciplinar. O campo historiográfico, então, sofreu mudança significativa, obrigando os historiadores a reconsiderar o conceito de fontes, para além daquelas predominantemente documentais, na pesquisa em história. Sobre essas fontes de pesquisa incide a reflexão, considerando-se a contribuição que os avanços tecnológicos trazem à coleta de dados, em particular, na história oral. Do ponto de vista metodológico, trata-se de estudo de caso, com caráter bibliográfico, que traça uma retrospectiva da história cultural, enfatizando as possibilidades de uso da história oral. Como aporte teórico, foram consultados estudos de Ribeiro (2003, Pesavento (2005 e Alberti (2005. Os resultados apontam para possibilidades de utilização da história oral na pesquisa em história cultural.

Adaptive camouflage: what can be learned from the wetting behaviour of the tropical flat bugs Dysodius lunatus and Dysodius magnus

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Florian Hischen

2017-08-01

Full Text Available The neotropical flat bug species Dysodius lunatus and Dysodius magnus show a fascinating camouflage principle, as their appearance renders the animal hardly visible on the bark of trees. However, when getting wet due to rain, bark changes its colour and gets darker. In order to keep the camouflage effect, it seems that some Dysodius species benefit from their ability to hold a water film on their cuticle and therefore change their optical properties when also wetted by water. This camouflage behaviour requires the insect to have a hydrophilic surface and passive surface structures which facilitate the liquid spreading. Here we show morphological and chemical characterisations of the surface, especially the cuticular waxes of D. magnus. Scanning electron microscopy revealed that the animal is covered with pillar-like microstructures which, in combination with a surprising chemical hydrophilicity of the cuticle waxes, render the bug almost superhydrophilic: water spreads immediately across the surface. We could theoretically model this behaviour assuming the effect of hemi-wicking (a state in which a droplet sits on a rough surface, partwise imbibing the structure around.  Additionally the principle was abstracted and a laser-patterned polymer surface, mimicking the structure and contact angle of Dysodius wax, shows exactly the behaviour of the natural role model – immediate spreading of water and the formation of a thin continuous water film changing optical properties of the surface.

Objetivos de organizações culturais sem fins lucrativos e suas fontes financiadoras

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Samara Regina Bernardino Hoffmann

Full Text Available A fim de compreender as mudanças no contexto das organizações culturais, apresenta-se uma reflexão sobre as transformações nos objetivos de dois grupos teatrais sem fins lucrativos de Florianópolis-SC e sobre a influência que os critérios requeridos pelas fontes financiadoras podem ter exercido neste processo. Quatro importantes categorias de análise guiaram a pesquisa: grupo teatral, objetivos, fontes de financiamento e critérios de avaliação de desempenho, orientando as entrevistas semi-estruturadas realizadas com os responsáveis pelas respectivas organizações e a observação constante das pesquisadoras em encontros, reuniões, ensaios e apresentações de espetáculos envolvendo as organizações pesquisadas. A pesquisa, predominantemente qualitativa e longitudinal gerou reflexões ante os dados coletados, com destaque para a história do Erro Grupo, que apresentou um forte distanciamento de seus propósitos iniciais ao longo de sua trajetória, por direcionar suas ações à captação de recursos junto às fontes financiadoras em detrimento de sua dedicação às atividades teatrais.

Prática social e armadilhas das fontes: as fontes historiográficas e normativas sobre o casamento por rapto na Alta Idade Média

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Sylvie Joye

2010-06-01

Full Text Available O casamento por rapto é uma prática reprovada e juridicamente condenada, mas, ao mesmo tempo, até certo ponto, tolerada socialmente, na alta Idade Média, no Ocidente. Assim, o estatuto atribuído às fontes normativas (em particular as leis bárbaras e a maneira pela qual alguns artigos de lei foram isolados de seu contexto documentário explicam, em grande parte, a razão de historiadores terem, por muito tempo, visto, no rapto, uma forma de casamento completo e uma sobrevivência de instituições "germânicas" antigas. Quanto às fontes narrativas, é imperativo não esquecer o contexto de sua redação, mesmo se, às vezes, ele parece relativamente neutro. De outra forma, corremos o risco de dar muito peso a alguns exemplos marginais ou pouco representativos. Recolocar no contexto dos documentos e da ideologia os retumbantes exemplos do período carolíngio permite, assim, relativizar a idéia de um crescimento importante do número de raptos nesta época.

Estrutura de capital: o papel das fontes de financiamento nas quais companhias abertas brasileiras se baseiam

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Wilson Tarantin Junior

2015-01-01

Full Text Available ResumoEste estudo avaliou a estrutura de capital de companhias abertas brasileiras, no período de 2005 a 2012, verificando o papel das fontes de financiamento nas quais tais companhias se baseiam. Para tanto, foi avaliada a proporção das dívidas em 3 fontes distintas: as instituições financeiras, o mercado de capitais e as fontes com taxas de juros subsidiadas, estas últimas representando um fator institucional da economia brasileira. Foi utilizada uma amostra de 95 empresas, dentre as 150 maiores empresas com ações negociadas na Bolsa de Valores, Mercadorias e Futuros de São Paulo (BM&FBOVESPA. Por meio de modelos com dados em painel, os resultados mostram que as fontes de financiamento impactam a formação da estrutura de capital das empresas, exercendo influência tanto na alavancagem quanto na maturidade das dívidas. Em relação à alavancagem, empresas que têm maior proporção de seus recursos captados no mercado de capitais são mais alavancadas. O mesmo não acontece com as empresas que têm maior proporção de recursos subsidiados. Em relação à maturidade das dívidas, recursos de diferentes maturidades são captados em diferentes fontes: os recursos de menores maturidades são captados em instituições financeiras e os recursos de maiores maturidades são captados no mercado de capitais e nas fontes com taxas de juros subsidiadas - leia-se Banco Nacional de Desenvolvimento Econômico e Social (BNDES. Comparando-se os recursos do mercado de capitais com os recursos subsidiados, verifica-se que os primeiros têm maior maturidade. Tal resultado pode ser justificado em virtude do crescimento do mercado de capitais brasileiro nos últimos anos, a partir de 2009, de modo que as companhias estão se baseando no mercado de capitais para seus financiamentos de maior maturidade e nos recursos subsidiados, do BNDES, para seus financiamentos de maturidades intermediárias.

Juhtidega kommunikatsioonist: Eesti juhtidel jääb puudu väljendusoskusest / Anneli Kannus, Jüri Pruulmann, Magnus Lužkov ...[jt.] ; intervjueerinud Kertu Kärk

Index Scriptorium Estoniae

2014-01-01

Organisatsiooni sise- ja väliskommunikatsiooni korraldusest, juhi rollist selles, enda kogemustest kommuniatsiooni vallas, Eesti juhtide kommunikatsioonioskusest ja koolitusvajadusest räägivad vestlusringis Tartu Tervishoiu Kõrgkooli rektor Anneli Kannus, ettevõtja Jüri Pruulmann, reklaamiagentuuri Optimist tegevjuht ja strateeg Magnus Lužkov, resideeruv ettevõtja Arengufondis Tiit Paananen ning juhtide coach ja personaliotsingu konsultant Tõnis Arro

Temperature effects on drift of suspended single-domain particles induced by the Magnus force

Science.gov (United States)

Denisov, S. I.; Lyutyy, T. V.; Reva, V. V.; Yermolenko, A. S.

2018-03-01

We study the temperature dependence of the drift velocity of single-domain ferromagnetic particles induced by the Magnus force in a dilute suspension. A set of stochastic equations describing the translational and rotational dynamics of particles is derived, and the particle drift velocity that depends on components of the average particle magnetization is introduced. The Fokker-Planck equation for the probability density of magnetization orientations is solved analytically in the limit of strong thermal fluctuations for both the planar rotor and general models. Using these solutions, we calculate the drift velocity and show that the out-of-plane fluctuations of magnetization, which are not accounted for in the planar rotor model, play an important role. In the general case of arbitrary fluctuations, we investigate the temperature dependence of the drift velocity by numerically simulating a set of effective stochastic differential equations for the magnetization dynamics.

Boundary layer stability on a yawed spinning body of revolution and its effect on the magnus force and moment

Science.gov (United States)

Jacobson, I. D.; Morton, J. B.

1972-01-01

The parameters are established which are important to the stability of a boundary layer flow over a yawed spinning cylinder in a uniform stream. It is shown that transition occurs asymmetrically in general and this asymmetry can be important for the prediction of aerodynamic forces and moments (e.g., the Magnus effect). Instability of the steady-state boundary layer flow is determined using small disturbance theory. Although the approach is strictly valid only for the calculation of the conditions for stability in the small, experimental data indicate that in many problems, it provides a good estimate for the transition to turbulence.

Fraturas expostas: uma análise das pinturas de "Desconstruções," de Alan Fontes

OpenAIRE

Costa, Alexandre Rodrigues da

2015-01-01

Este artigo se propõe a analisar as pinturas da série Desconstruções, de 2014, do artista mineiro Alan Fontes, a partir dos conceitos de informe e heterogenia de Georges Bataille. Tais conceitos nos permitirão pensar em uma pintura que se detém de maneira crítica sobre a arquitetura, ao tratar a casa como lugar precário, aberto aos acidentes. A casa se constitui, nas pinturas de Alan Fontes, como um espaço de proliferação de sentidos, que se abre, através do dilaceramento, para a desordem, a ...

Distracted While Reading? Changing to a Hard-to-Read Font Shields against the Effects of Environmental Noise and Speech on Text Memory.

Science.gov (United States)

Halin, Niklas

2016-01-01

The purpose of this study was to investigate the distractive effects of background speech, aircraft noise and road traffic noise on text memory and particularly to examine if displaying the texts in a hard-to-read font can shield against the detrimental effects of these types of background sounds. This issue was addressed in an experiment where 56 students read shorter texts about different classes of fictitious creatures (i.e., animals, fishes, birds, and dinosaurs) against a background of the aforementioned background sounds respectively and silence. For half of the participants the texts were displayed in an easy-to-read font (i.e., Times New Roman) and for the other half in a hard-to-read font (i.e., Haettenschweiler). The dependent measure was the proportion correct answers on the multiple-choice tests that followed each sound condition. Participants' performance in the easy-to-read font condition was significantly impaired by all three background sound conditions compared to silence. In contrast, there were no effects of the three background sound conditions compared to silence in the hard-to-read font condition. These results suggest that an increase in task demand-by displaying the text in a hard-to-read font-shields against various types of distracting background sounds by promoting a more steadfast locus-of-attention and by reducing the processing of background sound.

Opioid microinjection into raphe magnus modulates cardiorespiratory function in mice and rats.

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Hellman, Kevin M; Mendelson, Scott J; Mendez-Duarte, Marco A; Russell, James L; Mason, Peggy

2009-11-01

The raphe magnus (RM) participates in opioid analgesia and contains pain-modulatory neurons with respiration-related discharge. Here, we asked whether RM contributes to respiratory depression, the most prevalent lethal effect of opioids. To investigate whether opioidergic transmission in RM produces respiratory depression, we microinjected a mu-opioid receptor agonist, DAMGO, or morphine into the RM of awake rodents. In mice, opioid microinjection produced sustained decreases in respiratory rate (170 to 120 breaths/min), as well as heart rate (520 to 400 beats/min). Respiratory sinus arrhythmia, indicative of enhanced parasympathetic activity, was prevalent in mice receiving DAMGO microinjection. We performed similar experiments in rats but observed no changes in breathing rate or heart rate. Both rats and mice experienced significantly more episodes of bradypnea, indicative of impaired respiratory drive, after opioid microinjection. During spontaneous arousals, rats showed less tachycardia after opioid microinjection than before microinjection, suggestive of an attenuated sympathetic tone. Thus, activation of opioidergic signaling within RM produces effects beyond analgesia, including the unwanted destabilization of cardiorespiratory function. These adverse effects on homeostasis consequent to opioid microinjection imply a role for RM in regulating the balance of sympathetic and parasympathetic tone.

Five-grass pollen immunotherapy tablet: an update on the latest findings from clinical trials: an interview with Olivier de Beaumont.

Science.gov (United States)

de Beaumont, Olivier; Wilkinson, Jonathan

2014-01-01

Interview by Jonathan Wilkinson (Managing Commissioning Editor, Future Science Group). Olivier de Beaumont became Doctor of Medicine at the University of Paris Descartes in 1993. In the same year, he also took a Master of Health Economics degree at Paris Dauphine University. He is also a Master of Business Administration, ESCP Paris, 1999. At Stallergenes, he has been serving as Vice President/Head of Corporate Clinical Development since 2005, responsible for the clinical development plan, clinical operations, biometry and pharmacovigilance. In 2011, he took the responsibility of Senior Vice President Global Medical Affairs responsible for medical information and education, medical communication and nonregistration clinical studies. In 2014 he became Senior Vice President Global Scientific and Medical Affairs. From 2002 to 2005 he led the European business development of the world's leading clinical research organization Quintiles, developing Phase I-IV clinical trial programs for pharmaceutical companies. Previous roles included: Chief Scientific Officer and cofounder of Direct Medica (2000-2002), product champion and lifecycle management at Aventis (1998-2000), medical affairs manager in oncology and respiratory diseases at corporate Rhone-Poulenc Rorer (1993-1998).

Taxas de eventos para as fontes astrofísicas do detector Mario Schenberg

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Castro, C. S.; Araujo, J. C. N.; Miranda, O. D.; Aguiar, O. D.

2003-08-01

O detector de ondas gravitacionais Mario Schenberg será sensível a sinais que cheguem à Terra com amplitude h~10-21 e dentro da faixa em frequências que varia de 3,0 a 3,4 kHz. As principais fontes astrofísicas em condições de gerar um sinal detectável pela antena Schenberg são: colapsos estelares que produzam eventos do tipo supernova; instabilidades hidrodinâmicas em estrelas de nêutrons; excitação dos modos fluído (modos f) de estrelas de nêutrons; excitação dos primeiros modos quadrupolares de buracos negros com massa ~ 3,8 M¤; coalescências de estrelas de nêutrons e buracos negros em sistemas binários e, ainda, espiralações de mini-buracos negros. Neste trabalho nós determinamos as taxas de eventos para o Schenberg associadas a dois tipos de fontes: através da de-excitação dos modos f de estrelas de nêutrons e através da coalescência de mini-buracos negros de 0,5 M¤ (que atualmente têm sido colocados como possíveis candidatos a objetos massivos do halo Galáctico). Nós mostramos que esses tipos de fontes poderão produzir sinais em ondas gravitacionais com uma taxa em torno de um evento por ano dentro da banda do Schenberg.

Residual efficacy of cypermethrin and pirimiphos-methyl against Sitotroga cerealella (Olivier in wheat grain

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Pražić-Golić Marijana

2017-01-01

Full Text Available Residual efficacy of EC formulations of two insecticides: cypermethrin supplemented with the synergist piperonyl butoxide, and pirimiphos-methyl, against adults of the Angoumois grain moth, Sitotroga cerealella (Olivier, was investigated in the laboratory (at 25±1°C and 55-60% r.h. by applying water solutions of products based either on cypermethrin (1.6 mg a.i./kg of wheat grain or pirimiphos-methyl (4 mg a.i./kg of wheat grain to wheat grain. Insect mortality on deposits of different age: 0, 7, 14, 30, 60, 90, 120, 150 and 180 days was estimated after 2, 7 and 14 days of insect exposure to treated wheat. After 2 day exposure, cypermethrin caused mortality of up to 46% on all deposits (age 0-180 days. After 7 days of exposure, high efficacy (94-100% was found only on deposits that were up to 90 days old, while the mortality of S. cerealella adults on all deposits following 14 days of exposure was 98-100%, and it was probably additionally enhanced by natural mortality. Pirimiphos-methyl was 98-100% effective after 2 days of exposure to deposits that were up to 30 days old, while it achieved maximum efficacy (100% after 7 days of insect exposure to deposits aging for up to 150 days, and 94% efficacy on 180 days old deposits. After 14 days of adult exposure to all deposit ages, there were no surviving insects (efficacy 100%. The results show that pirimiphos-methyl was more effective against S. cerealella adults and had a longer residual activity than cypermethrin.

Situação Energética no Estado do Rio de Janeiro e o Capim-Elefante como Fonte Renovável

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Antonio Alonso Cecon Novo

2016-12-01

Full Text Available Esta revisão aborda a situação energética no Estado do Rio de Janeiro e também outras fontes alternativas de energia que vêm se destacando, como por exemplo, o capim-elefante. Foi realizado um breve relato sobre as fontes para geração de energia que tiveram um papel importante para o setor energético. Dentre as principais fontes para fins energéticos, o capim-elefante tem sido muito utilizado em pesquisas pela Universidade Estadual Norte Fluminense – UENF, na obtenção de cultivares mais produtivas para o desenvolvimento econômico principalmente da região Norte e Noroeste Fluminense. Este trabalho destaca as principais fontes de energia, com ênfase para o capim-elefante na matriz energética, com a produção de biomassa para geração de energia.

A matter of font type: The effect of serifs on the evaluation of scientific abstracts.

Science.gov (United States)

Kaspar, Kai; Wehlitz, Thea; von Knobelsdorff, Sara; Wulf, Tim; von Saldern, Marie Antoinette Oktavie

2015-10-01

Text-based communication is one of the substantial ways of spreading scientific information. While the content and contextual aspects of written words have been widely researched, the impact of font characteristics on text perception is an almost blank page. The following study deals with the influence of serifs on the evaluation of online-presented scientific abstracts. Yet there is only evidence for faster reading times when texts are presented in sans-serif fonts, although the opposite is stated in parts of the literature. The present work examines if the presence or absence of serifs also have an impact on the appraisal of scientific texts when all other important font characteristics do not change. For this purpose, 188 university students participated in an online experiment and rated different aspects of scientific abstracts as well as of the research outlined in the abstracts. The results show that missing serifs led to increased reading speed. However, and in contrast to the perceptual fluency hypothesis, the presence of serifs had a positive effect on all evaluation dimensions. The results of a second study with 187 participants also indicated that reading fluency counteracted the liking of texts. Implications for future studies and media production are discussed. © 2015 International Union of Psychological Science.

Pó de forno elétrico de siderurgia como fonte de micronutrientes e de contaminantes para plantas de milho

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ACCIOLY ADRIANA MARIA DE AGUIAR

2000-01-01

Full Text Available O objetivo deste trabalho foi avaliar o pó de forno elétrico (PFE, resíduo da indústria siderúrgica, como fonte de micronutrientes e contaminantes para o milho, em condições de casa-de-vegetação. Utilizou-se como substrato um Cambissolo álico, onde foram aplicados três níveis de calcário (0, 2 e 4 t ha-1 e cinco tratamentos: sem fornecimento de micronutrientes (testemunha, com fornecimento de micronutrientes via fontes de reagentes p.a., e com 250, 500 e 1.000 kg ha-1 do pó de forno elétrico. A produção de matéria seca só variou significativamente na presença de calagem. Os tratamentos com PFE proporcionaram aumentos na produção de biomassa em relação à testemunha, porém apresentaram resultados inferiores aos proporcionados pela aplicação de micronutrientes via fontes p.a. Não ocorreram diferenças entre os tratamentos na produção de matéria seca do milho com a adição de doses crescentes de PFE. O PFE atuou como fonte de micronutrientes, principalmente de Zn e de Fe. A solubilidade do PFE é sensivelmente maior em condições de maior acidez do solo. A presença de Cd e Pb foi detectada na matéria seca da parte aérea. O risco de contaminação do solo e dos alimentos por metais pesados presentes no PFE pode limitar seu uso agrícola como fonte de micronutrientes.

Fontes de apoio social a idosos portadores de doença pulmonar obstrutiva crônica

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Danyelle Almeida de Andrade

2013-03-01

Full Text Available Este trabalho objetivou identificar e estimular fontes de apoio social a idosos portadores de doença pulmonar obstrutiva crônica. Pautado por uma análise qualitativa e com caráter intervencionista, foi realizado através de quatro oficinas, que foram gravadas e posteriormente transformadas em corpus de discursos submetidos à análise categorial temática de conteúdo. A amostra foi composta por sete idosos (seis homens e uma mulher com média de idade de 70 anos. As temáticas mais recorrentes foram: queixas advindas das limitações impostas pela doença, isolamento e dependência funcional e estímulo das fontes de apoio social. Apesar de a família e os médicos terem sido identificados como as principais fontes de apoio, as dificuldades acarretadas pela enfermidade e o sentimento de incapacidade dificultavam as relações com os familiares e/ou cuidadores e o estabelecimento de novas redes sociais. As oficinas proporcionaram trocas de experiências entre os idosos, desenvolvendo vínculos e promovendo apoio social.

The effect of font size on reading comprehension on second and fifth grade children: bigger is not always better.

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Tami Katzir

Full Text Available Research on reading development has focused on the linguistic, cognitive, and recently, metacognitive skills children must master in order to learn to read. Less focus has been devoted to how the text itself, namely the perceptual features of the words, affects children's learning and comprehension. In this study, we manipulated perceptual properties of text by presenting reading passages in different font sizes, line lengths, and line spacing to 100 children in the second and fifth grades. For second graders (Experiment 1, decreasing font size, as well as increasing line length, yielded significantly lower comprehension scores. Line spacing had no effect on performance. For fifth graders (Experiment 2, decreasing font size yielded higher comprehension scores, yet there were no effects for line length and line spacing. Results are discussed within a "desirable difficulty" approach to reading development.

Jogando o Passado: Videogames como Fontes Históricas * Playing the past: video games as historical sources

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MARCELO CARREIRO

2013-12-01

Full Text Available Resumo: A historiografia contemporânea vem se utilizando, de forma cada vez mais segura, das novas mídias mistas como uma rica fonte histórica – é o caso do cinema e dos quadrinhos. Contudo, essa abertura metodológica a fontes não-textuais ganha nova dimensão com a consolidação da indústria de videogames como uma mídia audiovisual interativa, com elementos das mídias anteriores, mas resultando num caráter próprio. A recente maturidade da mídia, seu alcance demográfico e de mercado, assim como sua condição de arte de massa, colocam os videogames como fonte indispensável para a historiografia do tempo presente.Palavras-chave: Videogame – Fontes – Metodologia – História do tempo presente. Abstract: Contemporary historiography has been using, in an increasingly confident way, new mixed media as a rich historical source – such is the case concerning movies and comics. However, this methodological opening to nontextual sources gains a new dimension with the setting of the video game industry as an interactive audiovisual medium, containing elements of previous media but resulting in a distinctive character. The recent maturity of this medium, its demographics and market reach – as well as its character of mass art – makes video games an indispensable source for the historiography of the present time.Keywords: Video game – Historical sources – Methodology – History of the Present Time.

The effects of age, viewing distance, display type, font type, colour contrast and number of syllables on the legibility of Korean characters.

Science.gov (United States)

Kong, Yong-Ku; Lee, Inseok; Jung, Myung-Chul; Song, Young-Woong

2011-05-01

This study evaluated the effects of age (20s and 60s), viewing distance (50 cm, 200 cm), display type (paper, monitor), font type (Gothic, Ming), colour contrast (black letters on white background, white letters on black background) and number of syllables (one, two) on the legibility of Korean characters by using the four legibility measures (minimum letter size for 100% correctness, maximum letter size for 0% correctness, minimum letter size for the least discomfort and maximum letter size for the most discomfort). Ten subjects in each age group read the four letters presented on a slide (letter size varied from 80 pt to 2 pt). Subjects also subjectively rated the reading discomfort of the letters on a 4-point scale (1 = no discomfort, 4 = most discomfort). According to the ANOVA procedure, age, viewing distance and font type significantly affected the four dependent variables (p fonts were smaller than the Ming fonts. Monitors were smaller than paper for correctness and maximum letter size for the most discomfort. From a comparison of the results for correctness and discomfort, people generally preferred larger letter sizes to those that they could read. The findings of this study may provide basic information for setting a global standard of letter size or font type to improve the legibility of characters written in Korean. STATEMENT OF RELEVANCE: Results obtained in this study will provide basic information and guidelines for setting standards of letter size and font type to improve the legibility of characters written in Korean. Also, the results might offer useful information for people who are working on design of visual displays.

ORGANIC FERTILIZER AS PHOSPHORUS SUPPLIER FOR Brachiaria brizantha CV. MARANDÚ FERTILIZANTE ORGÂNICO COMO FONTE DE FÓSFORO NO CULTIVO INICIAL DE Brachiaria brizantha CV. MARANDÚ

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Diego Henriques Santos

2010-05-01

Full Text Available

font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY">font-family: Times New Roman,serif;">font-size: small;">Phosphorus is considered an essential element for plants, but it is found in low amounts in Brazilian soils, mainly in areas destined to pastures, and the application of organic matter contributes to the improvement of physical, chemical and biological soil attributes. The research had the objective of evaluating the application effects of the Bokashi organic compound on soil macro and micronutrients contents and leaves, as well as on Brachiaria brizantha cv. Marandú dry mass yield, evaluating the potential of the organic fertilizer as phosphorus source, in comparison with conventional chemical fertilizers. Different organic compound doses supplied the soil with 17 kg P₂O₅ ha^-1, 34 kg P₂O₅ ha^-1, 68 kg P₂O₅ ha^-1, 136 kg P₂O₅ ha^-1, and 204 kg P₂O₅ ha^-1, comparing it with the conventional chemical fertilizer and the control. The results revealed that the organic fertilizer Bokashi can adequately replace the conventional chemical fertilizer of Brachiaria brizantha cv. Marandú, supplying the soil and plant with appropriate nutrients levels and maintaining the dry mass yield.

font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY">font-family: Times New Roman,serif;">font-size: small;">KEY-WORDS: Organic matter; organic fertilizers; plants mineral nutrition; Bokashi

Efeito de diferentes fontes de sílica nos parâmetros texturais da peneira molecular MCM-41

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M. S. B. Fontes

2016-03-01

Full Text Available Resumo Nas últimas décadas, pesquisas estão sendo desenvolvidas para obtenção de materiais eficientes e economicamente viáveis para aplicação em diversos setores da indústria. Os materiais mesoporosos da família MCM-41 estão entre os candidatos eficazes pela facilidade de síntese e estrutura que favorece uma gama de aplicações. O objetivo desse trabalho foi apresentar uma abordagem rítica das características e propriedades dos materiais mesoporosos do tipo MCM-41, enfocando nos aspectos estruturais. Além isso, foram discutidas as vantagens e desvantagens do uso de sílica comerciais e alternativas. As fontes de sílica comerciais analisadas foram sílica gel e TEOS; já as fontes de sílica alternativas foram cinza da casca de arroz, quartzo e pó de vidro. Os materiais analisados foram sintetizados pelo método hidrotérmico e caracterizados por DRX, FTIR, BET e TG. Os resultados apresentados comprovam a eficiência das fontes de sílica alternativas na síntese do MCM-41, pois os materiais apresentaram propriedades texturais dentro dos padrões exigidos. Dessa forma, eles estão aptos a serem testados na indústria em substituição aos MCM-41 sintetizados com fonte de sílica comercial.

Apparatus-Program Complexes Processing and Creation of Essentially non-Format Documents on the Basis of Technology Auto-Adaptive Fonts

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E. G. Andrianova

2014-01-01

Full Text Available The need to translate paper documents into electronic form demanded a development of methods and algorithms for automatic processing systems and web publishing unformatted graphic documents of on-line libraries. Translation of scanned images into modern formats of electronic documents using OCR programmes faces serious difficulties. These difficulties are connected with the standardization set of fonts and design of printed documents. There is also a need to maintain the original form of electronic format of such documents. The article discusses the possibility for building an extensible adaptive dictionary of graphic objects, which constitute unformatted graphics documents. Dictionary automatically adjusted as graphics processing and accumulation of statistical information for each new document. This adaptive extensible dictionary of graphic letters, fonts, and other objects of automated particular document processing is called "auto-adaptive font", and a set of its application methods is named "auto-adaptive font technology."Based on the theory of estimation algorithms, a mathematical model is designed. It allows us to represent all objects of unformatted graphic document in a unified manner to build a feature vector for each object, and evaluate a similarity of these objects in the selected metric. The algorithm of the adaptive models of graphic images is developed and a criterion for combining similar properties in one element to build an auto-adaptive font is offered thus allowing us to build a software core of hardware-software complex for processing the unformatted graphic documents. A standard block diagram of hardware-software complex is developed to process the unformatted graphic documents. The article presents a description of all the blocks of this complex, including document processing station and its interaction with the web server of publishing electronic documents.

Distracted While Reading? Changing to A Hard-to-read Font Shields against the Effects of Environmental Noise and Speech on Text Memory

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Niklas Halin

2016-08-01

Full Text Available The purpose of this study was to investigate the distractive effects of background speech, aircraft noise and road traffic noise on text memory and particularly to examine if displaying the texts in a hard-to-read font can shield against the detrimental effects of these types of background sounds. This issue was addressed in an experiment where 56 students read shorter texts about different classes of fictitious creatures (i.e., animals, fishes, birds, and dinosaurs against a background of the aforementioned background sounds respectively and silence. For half of the participants the texts were displayed in an easy-to-read font (i.e., Times New Roman and for the other half in a hard-to-read font (i.e., Haettenschweiler. The dependent measure was the proportion correct answers on the multiple-choice tests that followed each sound condition. Participants’ performance in the easy-to-read font condition was significantly impaired by all three background sound conditions compared to silence. In contrast, there were no effects of the three background sound conditions compared to silence in the hard-to-read font condition. These results suggest that an increase in task demand—by displaying the text in a hard-to-read font—shields against various types of distracting background sounds by promoting a more steadfast locus-of-attention and by reducing the processing of background sound.

A method of self-pursued boundary value on a body and the Magnus effect calculated with this method

Science.gov (United States)

Yoshino, Fumio; Hayashi, Tatsuo; Waka, Ryoji

1991-03-01

A computational method, designated 'SPB', is proposed for the automatic determination of the stream function Phi on an arbitrarily profiled body without recourse to empirical factors. The method is applied to the case of a rotating, circular cross-section cylinder in a uniform shear flow, and the results obtained are compared with those of both the method in which the value of Phi is fixed on a body and the conventional empirical method; it is in view of this established that the SPB method is very efficient and applicable to both steady and unsteady flows. The SPB method, in addition to yielding the aerodynamic forces acting on a cylinder, shows that the Magnus effect lift force decreases as the velocity gradient of the shear flow increases while the cylinder's rotational speed is kept constant.

Fontes hidrominerais do Brasil: componentes biologicamente ativos (BAC) naturais

OpenAIRE

Lazzerini, Fábio Tadeu [UNESP

2013-01-01

Os ambientes e recursos naturais de fontes hidrominerais devem fazer parte da governança e planejamento estratégico na saúde pública, meio ambiente, bem estar, turismo e mineração. Na atual política nacional observada em: termalismo social/crenoterapia como prática integrativa complementar da medicina (PIC) através da Portaria Ministério da Saúde 971/2006; na exploração e aplicação das águas minerais prevista pelas Portarias Ministério das Minas e Energia 337/2002 e 127/2011; na implementação...

Distinct effect of orphanin FQ in nucleus raphe magnus and nucleus reticularis gigantocellularis on the rat tail flick reflex.

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Yang, Z; Zhang, Y; Wu, G

2001-06-22

The aim of the present study is to investigate the effects of orphanin FQ (OFQ) microinjected into the nucleus raphe magnus (NRM) and the nucleus reticularis gigantocellularis (NGC) on pain modulation. The tail-flick latency (TFL) was used as a behavioral index of nociceptive responsiveness. The result showed microinjection of OFQ into the NRM significantly increased the TFL, whereas microinjection of OFQ into the NGC decreased the TFL, suggesting the analgesic effect of OFQ in the NRM and the hyperalgesic effect of OFQ in the NGC. As there are three classes of putative pain modulating neurons in the rostral ventromedial medulla (RVM), the hyperalgesic or analgesic effect of OFQ in the RVM might depend upon the different class of the neurons being acted.

Parasitoids associated with the black scale Saissetia oleae(Olivier (Hemiptera: Coccidae in olive trees in Minas Gerais State, Brazil

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Ernesto Prado

2015-10-01

Full Text Available Black scale, Saissetia oleae (Olivier (Hemiptera: Coccidae is an important pest of olive trees (Olea europaea L. that requires the use insecticides for its control. Parasitoids are important regulating agents of this pest, but currently, no information on its complex of natural enemies and their impact on black scale in Brazilian conditions exists. This study focused on identifying parasitoid wasps that were associated with the black scale on olive trees to establish their relative abundance and rate of parasitism. Samplings were maintained in an olive orchard located in Maria da Fe, south of the state of Minas Gerais, Brazil, and infested branches were stored in emergence containers to recover parasitoids. Another group was kept in Flanders batteries to evaluate the rate of parasitism in approximately 100 scales. Sixteen parasitoid species were collected during the sampling period, and the most common species were Coccophagus caridei (Brèthes (Hymenoptera: Aphelinidae, Diversinervus elegans Silvestri (Hymenoptera: Encyrtidae, and Mesopeltita truncatipennis (Waterston (Hymenoptera: Pteromalidae, the latter of which was most abundant and frequent. Parasitism ranged from 3 to 31% with peaks in summer and autumn. This level could be considered insufficient to hold the black scale under the economic injury level; however, these parasitoids should be preserved for contributions to population regulation.

Nanosecond-Timescale Intra-Bunch-Train Feedback for the Linear Collider: Results of the FONT2 Run

International Nuclear Information System (INIS)

Barlow, R.; Dufau, M.; Kalinin, A.; Daresbury; Myatt, G.; Perry, C.; Oxford U.; Burrows, P.N.; Hartin, T.; Hussain, S.M.; Molloy, S.; White, G.R.; Queen Mary, U. of London; Adolphsen, C.; Frisch, J.C.; Hendrickson, L.; Jobe, R.K.; Markiewicz, T.; McCormick, D.J.; Nelson, J.; Ross, M.C.; Smith, S.; Smith, T.J.; SLAC

2005-01-01

We report on experimental results from the December 2003/January 2004 data run of the Feedback On Nanosecond Timescales (FONT) experiment at the Next Linear Collider Test Accelerator at SLAC. We built a second-generation prototype intra-train beam-based feedback system incorporating beam position monitors, fast analogue signal processors, a feedback circuit, fast-risetime amplifiers and stripline kickers. We applied a novel real-time charge-normalization scheme to account for beam current variations along the train. We used the system to correct the position of the 170-nanosecond-long bunchtrain at NLCTA. We achieved a latency of 53 nanoseconds, representing a significant improvement on FONT1 (2002), and providing a demonstration of intra-train feedback for the Linear Collider

Moderata Fonte y María Zambrano: por cuenta propia

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Rosa Rius Gatell

2003-01-01

Full Text Available In this paper, Rosa Rius thinks about feminine identity and its history, based on the expressions of freedom of two authors living four centuries apart: the Venetian humanist Moderata Fonte (1555-1592 and the Malagan philosopher María Zambrano (1904-1991. The fact that these women’s freedom is taken as one of their main identifying elements, and straining the historical action of this freedom, unforeseen by the establishment, does not at all imply that the undeniable discrimination inflicted upon women throughout centuries is forgotten or goes on without protest.

O novo Direito Internacional Privado e o conflito de fontes na cooperação jurídica internacional

OpenAIRE

Carvalho Ramos, André de

2013-01-01

O Direito Internacional Privado contemporâneo possui na cooperação jurídica internacional uma de suas áreas de maior dinamismo. A existência de fontes internacionais e internas da cooperação jurídica internacional exige uma análise da solução dos conflitos de fontes. The current Private International Law treats the international legal cooperation as one of its most dynamic subjects. However, the existence of both international and national law sources of legal cooperation requires a study ...

The effect of font size and type on reading performance with Arabic words in normally sighted and simulated cataract subjects.

Science.gov (United States)

Alotaibi, Abdullah Z

2007-05-01

Previous investigations have shown that reading is the most common functional problem reported by patients at a low vision practice. While there have been studies investigating effect of fonts in normal and low vision patients in English, no study has been carried out in Arabic. Additionally, there has been no investigation into the use of optimum print sizes or fonts that should be used in Arabic books and leaflets for low vision patients. Arabic sentences were read by 100 normally sighted volunteers with and without simulated cataract. Subjects read two font types (Times New Roman and Courier) in three different sizes (N8, N10 and N12). The subjects were asked to read the sentences aloud. The reading speed was calculated as number of words read divided by the time taken, while reading rate was calculated as the number of words read correctly divided by the time taken. There was an improvement in reading performance of normally sighted and simulated visually impaired subjects when the print size increased. There was no significant difference in reading performance between the two types of font used at small print size, however the reading rate improved as print size increased with Times New Roman. The results suggest that the use of N12 print in Times New Roman enhanced reading performance in normally sighted and simulated cataract subjects.

Desempenho ponderal de bovinos Nelore suplementados com fontes alternativas de fósforo

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Guilherme Cazerta Lemos

2013-02-01

Full Text Available O desempenho produtivo e a possível interferência do flúor sobre a saúde dos animais foram investigados em bovinos Nelore suplementados, por 866 dias, com distintas fontes alternativas de fósforo com diferentes relações fósforo:fluor (P:F. Os tratamentos experimentais foram: Controle negativo (CONTNEG, sem qualquer suplementação com P, fosfato bicálcico (FB 120:1, FB 30:1 e FB 10:1, fosfato monobicálcico (FMBC 60:1, superfosfato triplo (SFT 30:1 e fosfato de rocha de Cajati (FR 10:1. Foram utilizados 49 novilhos, desmamados aos oito meses de idade, castrados e com 230 kg de peso médio, distribuídos em sete piquetes com água e mistura mineral formulada sem P. A dieta padrão foi feita com bagaço de cana (0,03% de P como volumoso e um concentrado contendo 0,239 % de P oferecido na base de 1% do peso dos animais para permitir um ganho de peso aproximado de 0,50 kg/dia. Até o dia 134, não houve diferença estatística entre os diversos lotes, inclusive para o tratamento CONTNEG, que não recebeu fósforo suplementar na dieta e ganhou 71,6 kg de peso ou 0,633 kg/dia. Após 866 dias de confinamento (2,37 anos, os animais suplementados com o fosfato bicálcico padrão (120:1 ganharam menos peso que os suplementados com as fontes FMCB 60:1, FB 30:1 e SFT 30:1. Até um ano de suplementação fosfórica com fosfato bicálcico padrão (120:1 artificialmente fluoretado com NaF ou com o fosfato de rocha não se detectou danos à saúde ou ao ganho de peso dos animais. As análises de fósforo nos ossos mostraram diferença estatística apenas entre o tratamento CONTNEG e os que tinham fosfato bicálcico. As concentrações de flúor nos ossos se mostraram intimamente associadas à quantidade de flúor disponível nas fontes utilizadas. Conforme a proporção P:F na dieta foi diminuindo, características relacionadas à fluorose dentária ficaram mais evidentes, sendo que os animais que receberam fontes com relação 10:1, apresentaram, ao

Sterilizing effects and lethal effects of gamma radiation on different phases of life cycle of the sitotroga cerealella (Olivier) in rice and maize

International Nuclear Information System (INIS)

Arthur, V.

1985-01-01

The objective of this research to verify the effects of the gamma radiation on different phases of the life cycle of the gamma radiation on different phases of the life cycle of the moth grain Angoumois, Sitotroga cerealella (Olivier, 1819). For all the treatment with gamma radiation a Cobalt-60 source type Gammabeam-650 was used and the activity was approximately 3.1 x 10 sup(14) Bq., with dose rate of 3.01 kGy per hour. The LD sub(100) of gamma radiation for eggs of insects reared in rice and maize were respectively 100 Gy and 125 Gy. The sterilizing doses in adults which were irradiated at immature phases (larvae and pupae) were 100 Gy and 200 Gy in rice and 150 Gy and 250 Gy in maize, respectively. The sterilizing doses for females and males in maize were respectively 350 Gy and 500 Gy. The LD sub(100) for adult females were 4500 Gy and 4750 Gy for males, both in rice. The LD sub(100), for adult reared on maize was 4750 Gy for both sexes. (author)

Classificação das bases conceituais para elaboração de sistema digital de busca de fontes jornalísticas

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Walter Teixeira Lima Junior

2008-11-01

Full Text Available Este artigo contém a definição de conceitos e revisão bibliográfica da primeira parte da pesquisa de nosso pós-doutorado visando à produção de software para pesquisa e validação qualitativa de fontes de informação jornalística. O texto versa sobre memória biológica, decision making e conceitos fundamentais para escolha de uma fonte jornalística: natureza da fonte, credibilidade, prestígio e atualidade. Eles permeiam e influenciam a escolha (tomada de decisão por parte do profissional que necessita de uma fonte para realizar seu trabalho jornalístico. Foram classificados, categorizados, estruturados e relacionados visando servir de parâmetros confiáveis e consolidados para que um software possa, a partir deles, realizar a tarefa de seleção das melhores opções de fontes jornalísticas, sem que esse processo contenha os vícios apontados por pesquisadores da área. Palavras-chave: fontes jornalísticas; jornalismo; tecnologia; ciências cognitivas; memória biológica Abstract Classification of conceptual bases for the construction of a digital system for searching journalistic sources - This article contains definitions of concepts and bibliographical reviews of the first part of a post-doctoral research aimed at the production of software for the research and qualitative validation of journalistic information sources. The text discusses biological memory, decision-making and fundamental concepts for the choice of a journalistic source: the nature of the source, its credibility, prestige and currentness. These factors imbue and influence the choice (decision-making of the professional seeking a source to carry out his journalistic work. They were classified, categorized, structured and interrelated to serve as reliable and consolidated parameters to enable a software program to perform the task of selecting the best journalistic sources without the errors and problems that researchers of the area have experienced

Avaliação das principais fontes de vibração no meio urbano

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Luiz Antonio Brito

Full Text Available No meio urbano existem diversas fontes de vibração que podem gerar a incomodidade ao ser humano, danos estruturais ou prejudicar o funcionamento de equipamentos sensíveis, como os hospitalares, por exemplo. A principal forma de atenuação da energia vibratória é o aumento da distância entre a fonte e o receptor o que vem sendo reduzido sistematicamente pela especulação imobiliária e invasão das áreas de domínio de ferrovias e rodovias. A forma de propagação da energia vibratória depende da fonte, do tipo de solo e da interação entre as ondas de vibração e a estrutura da edificação. As normas técnicas propõem critérios para avaliar a incomodidade dos usuários e danos estruturais das edificações. O parâmetro de análise da vibração é a velocidade da partícula peak (PVP que é ligada às tensões mecânicas geradas na fundação e estrutura da edificação durante o processo vibratório. O objetivo deste trabalho é avaliar o impacto gerado pelas principais fontes de vibração no meio urbano por meio de medição da velocidade da partícula peak e o cálculo do decaimento da energia vibratória com o aumento da distância. Foram avaliados o tráfego rodoviário, o ferroviário, o processo de cravação de estacas de concreto e metálica e a operação de uma rompedor de concreto movido a ar comprimido. O limite de incomodidade foi superado em todas as análises com exceção da estaca metálica. O limite de danos estruturais foi ultrapassado pelo tráfego ferroviário e operação do bate estacas.

Processamento de biscoitos adicionados de óleo de buriti (Mauritia flexuosa L.: uma alternativa para o consumo de alimentos fontes de vitamina A na merenda escolar

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Jailane de Souza Aquino

2012-12-01

Full Text Available OBJETIVO: Este trabalho teve como objetivo desenvolver biscoitos tipo cookie adicionado de óleo de buriti a fim de se analisarem sua aceitação sensorial e seu valor nutricional, visando a sua utilização na merenda escolar, bem como avaliar o consumo de alimentos fontes de vitamina A por escolares. MÉTODOS: Uma formulação-controle (15% de óleo de soja e duas formulações experimentais (7,5% e 15% de óleo de buriti foram produzidas e avaliadas quanto à composição centesimal, conteúdo de vitamina A e aceitação sensorial, testada por 201 escolares. Avaliou-se também o consumo de alimentos fontes de vitamina A por esses escolares mediante questionário semiquantitativo contendo 28 alimentos considerados fontes da referida vitamina. RESULTADOS: O biscoito elaborado com 15% de óleo de buriti obteve boa aceitação, e apresenta maior percentual de proteínas, de minerais e de vitamina A, podendo ser considerado fonte deste último nutriente. Observou-se uma maior frequência de consumo de alimentos com baixo teor de vitamina A, como também uma menor frequência de consumo dos frutos da região Nordeste. CONCLUSÃO: Os biscoitos adicionados de óleo de buriti podem ser uma alternativa de inclusão de alimentos fontes de vitamina A na dieta de escolares, no entanto o consumo de frutas e hortaliças fontes dessa vitamina deve ser estimulado, tendo em vista que os escolares consomem pouca variedade de alimentos fontes dessa vitamina, o que aumenta o risco de deficiência a longo prazo.

Gênero e nação: a série fontes e a virilização da raça - Gender and nation: the série fontes and the virilization of the race

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Cristiani Bereta da Silva, Maria Bernardete Ramos Flores

2011-03-01

Full Text Available O  objetivo desse artigo é fazer  um  exercício de  interpretação  da coleção didática conhecida como Série Fontes, de autoria de Henrique da Silva Fontes (1885-1966, como uma das leituras dadas a ler pela escola no contexto da construção da Nação republicana. Tal coleção foi distribuída gratuitamente na rede de Instrução Pública de Santa Catarina, e adotada também nos estabelecimentos de ensino privados, entre a década de 1920  até meados da década de 1950. Partimos do pressuposto que os manuais didáticos ocuparam  importante  função nas últimas décadas do século XIX e primeiras décadas do século XX, como veículos do projeto        de Estado Nação, respaldado primordialmente no ideário nacionalista. O foco principal da análise será o de perceber como nesse processo de formação de cidadãos e de construção da idéia  de pátria  moderna e civilizada, as pedagogias prescreviam o ethos da virilidade para almejar o progresso da Nação. Palavras-chave: gênero; nação; virilização da raça.   GENDER  AND NATION: THE SÉRIE FONTES AND THE VIRILIZATION OF THE RACE Abstract The aim of this article is to accomplish an exercise of interpretation of the educational collection known as Série Fontes, by Henrique da Silva Fontes (1885-1966, as one of the books given to the students by the school in the  context of the construction  of the republican Nation.   The collection was freely distributed in the public educational system of the state of Santa  Catarina, in  Brazil. It was also adopted in private schools from the  decade of 1920  until  the decade of 1950.   In  this  article  we assume that  the  schoolbooks played an important role as vehicles for the propagation of the State- Nation project and its nationalistic principles during the last decades of the 19th  century and the the first  decades  of the 20th  century. The focus of the analysis  will be identifying

SANTÉ PUBLIQUE Les troubles de santé font fi des frontières – les ...

International Development Research Centre (IDRC) Digital Library (Canada)

SANTÉ PUBLIQUE Les troubles de santé font fi des frontières – les connaissances et les solutions devraient elles ... Dangers du tabac et des narguilés pour la santé ... ÉTUDE DE CAS : Nouvelles armes dans la guerre contre le paludisme.

NECESSIDADE DE MAIOR CRÍTICA ÀS FONTES HISTORIOGRÁFICAS SOBRE OS ÍNDIOS NO BRASIL: CONTRIBUIÇÕES À ETNO-HISTÓRIA, ETNOARQUEOLOGIA E À ARQUEOLOGIA PRÉ-HISTÓRICA

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Rafael Borges Deminicis

2015-06-01

Full Text Available As analogias feitas pelo uso de fontes historiográficas (mapas, imagens, manuscritos etc., principalmente as que abordam os povos indígenas encontrados no Brasil, sem uma metodologia crítica de análise dessas fontes, têm criado algumas armadilhas aos estudos nos campos da etno-história e da etnoarqueologia. Portanto, o que poderia auxiliar no descobrimento da história e das identidades étnicas das inúmeras sociedades tribais remotas ou indígenas sul-americanas, traz cada vez mais encobrimento. Neste sentido, uma dialética serial das fontes se faz extremamente necessária. O panorama do que existe acumulado no Brasil sobre métodos de crítica das fontes historiográficas sobre as sociedades indígenas é extremamente raro, resumindo-se a duas referências: o trabalho de síntese dos grandes contextos sociais de produção das fontes criado pelo sociólogo Florestan Fernandes; e o sistema de observação das particularidades das fontes, a “sociologia dos viajantes”, do antropólogo João Pacheco de Oliveira. Um primeiro passo na direção de uma dialética e serial às referidas fontes seria a combinação desses dois métodos.

Font Size Matters—Emotion and Attention in Cortical Responses to Written Words

OpenAIRE

Bayer, Mareike; Sommer, Werner; Schacht, Annekathrin

2012-01-01

For emotional pictures with fear-, disgust-, or sex-related contents, stimulus size has been shown to increase emotion effects in attention-related event-related potentials (ERPs), presumably reflecting the enhanced biological impact of larger emotion-inducing pictures. If this is true, size should not enhance emotion effects for written words with symbolic and acquired meaning. Here, we investigated ERP effects of font size for emotional and neutral words. While P1 and N1 amplitu...

Tolerance to non-opioid analgesics is opioid-sensitive in nucleus raphe magnus

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Merab G Tsagareli

2011-07-01

Full Text Available Repeated injection of opioid analgesics can lead to a progressive loss of its effect. This phenomenon is known as tolerance. Several lines of investigations have shown that systemic, intraperitoneal administration or the microinjection of non-opioid analgesics, non-steroidal anti-inflammatory drugs (NSAIDs in the midbrain periaqueductal gray matter induces antinociception with some effects of tolerance. Our recent study has revealed that microinjection of three drugs analgin, ketorolac and xefocam into the central nucleus of amygdala produce tolerance to them and cross-tolerance to morphine. Here we report that repeated administrations of these NSAIDs into the nucleus raphe magnus (NRM in the following four days result in progressively less antinociception, i.e. produce the development of tolerance to these drugs in mail rats. Special control experiments showed that post-treatment with μ-opioid antagonist naloxone in NRM significantly decreased antinociceptive effects of NSAIDs at the first day in behavioral tail flick reflex (TF and hot plate (HP latencies. At the second day, naloxone generally had trend effects in both TF and HP tests impeded the development of tolerance to the antinociceptive effect of non-opioid analgesics. These findings strongly support the suggestion on endogenous opioid involvement in NSAIDs antinociception and tolerance in the descending pain control system. Moreover, repeated injections of NSAIDs progressively lead to tolerance to them, cross-tolerance to morphine and the risk of a withdrawal syndrome. Therefore, these results are important for human medicine too.

Pó-de-aciaria como fonte de zinco para o milho e seu efeito na disponibilidade de metais pesados

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Santos Glaucia Cecília Gabrieli dos

2002-01-01

Full Text Available O objetivo deste trabalho foi avaliar o pó-de-aciaria como fonte de zinco para o milho (Zea mays L. e seu efeito no acúmulo e disponibilidade de Cd, Cr, Ni e Pb no solo e nas plantas. O experimento foi realizado em casa de vegetação, utilizando-se dois Latossolos Vermelhos e em dois valores de pH (5,0 e 6,0. As fontes de zinco foram o pó-de-aciaria e o sulfato de zinco aplicados nas doses de 0, 5, 50 e 150 mg.dm-3 de Zn. Fez-se a extração de Zn, Pb, Cd, Cr e Ni do solo utilizando-se as soluções de DTPA e de Mehlich-1. A menor dose de Zn adicionada ao solo, nas duas fontes, proporcionou teores na parte aérea da planta superiores ao nível crítico para a cultura. As concentrações dos metais Pb, Cd, Cr e Ni, tanto na parte aérea como no solo, foram menores que os níveis críticos para toxicidade. Os coeficientes de correlação entre o Zn extraído do solo pelas duas soluções e a concentração de Zn na parte aérea do milho foram significativos e semelhantes para ambos os solos. O mesmo não foi observado para os outros elementos. Conclui-se que, nas condições estudadas, o pó-de-aciaria é uma fonte eficiente de Zn para o milho; os extratores são adequados para determinar a disponibilidade desse elemento, ineficientes, entretanto, para os outros metais estudados. O pH alterou a disponibilidade do Zn diminuindo a disponibilidade com seu aumento.

Variáveis mineralógicas preditoras de fontes de produção de sedimentos, em uma bacia hidrográfica do Rio Grande do Sul

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Pablo Miguel

2014-06-01

Full Text Available O uso da mineralogia como ferramenta para a avaliação das propriedades dos minerais que compõem o solo é extremamente importante para o entendimento das diferentes relações químicas e físicas que ocorrem nele. Essas propriedades/variáveis, na identificação das fontes de sedimentos em suspensão, podem ajudar a elucidar os fatores e processos que regem a transferência de sedimentos e poluentes dos sistemas terrestres para os sistemas aquáticos. Os objetivos deste estudo foram caracterizar quantitativamente a mineralogia do solo das fontes e dos sedimentos em suspensão, em uma bacia hidrográfica, e identificar quais variáveis mineralógicas possuem propriedades traçadoras. Para a identificação das fontes, foi utilizado o método fingerprinting, que compara os solos de diferentes fontes e os sedimentos que são encontrados em suspensão no canal de drenagem, usando elementos traçadores. Os principais minerais que compõem o solo das fontes e do sedimento foram caulinita, minerais de camada 2:1 e hematita e goethita. Entre os óxidos, a hematita foi o que predominou entre as amostras. As variáveis mineralógicas, teor de caulinita e de goethita apresentaram capacidade discriminante e puderam ser usados como traçadores na identificação das fontes de produção de sedimentos e na estimativa da contribuição de cada uma das fontes, aumentando assim a capacidade preditiva do modelo. A maior contribuição na produção de sedimentos foi dos canais fluviais, seguidos pela malha e, por último, pelas estradas.

Renditions of Faithfulness; from Jorge Calvetti’s Poetry to Gustavo Fontán’s Films.

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Adriana C. Cid

2015-04-01

Full Text Available An original and sensitive filmmaker, Gustavo Fontán goes beyond classic transpositions to venture into a poet’s obsessions, aesthetic and atmospheres. He has done so with the work of Jacobo Fijman, Juan L. Ortiz and Jorge Calvetti – to name just a few. In this paper I intend to explore El paisaje invisible, a short film by Fontán that brings us closer to Calvetti. I will focus on the director’s strategies – characteristic of the cinematographic language - that convey the poet’s mythical world and aesthetic, and I will analyze the union of both artists’ poetics. Finally, I would like to offer a brief explanation of the title of this article, which is drawn from a reflection by Calvetti: “All inspiration is born with its own form or forms. The same subject can be written as a narrative or in verse. Why not? They are different renditions of faithfulness.” I believe cinema is another rendition.

A queda do muro de Berlim: um estudo com fontes brasileiras

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Carlos Federico Domínguez Ávila

2010-10-01

Full Text Available O artigo explora os acontecimentos que resultaram na queda do muro de Berlim, bem como algumas das suas mais importantes conseqüências, inclusive no que diz respeito à reunificação alemã, em 1990. O texto utiliza prioritariamente fontes primárias resgatadas no Arquivo Histórico do Ministério das Relações Exteriores do Brasil - após vários anos de resguardo legal. Também são utilizadas fontes secundárias - isto é, literatura especializada na temática publicada no Brasil e no exterior. Analiticamente o artigo constata a transcendental relevância da queda do muro de Berlim e eventos subseqüentes, tanto na própria Alemanha, quanto na Europa e no mundo. Nessa linha, o texto alude ao colapso político e econômico da República Democrática da Alemanha (RDA, aos atores fundamentais que levaram ao esboroamento do muro, aos condicionantes domésticos, inter-alemães, europeus e globais que incidiram no processo de reunificação da nação alemã e aos dilemas específicos da cidade de Berlim no contexto geral da reunificação germânica. O trabalho inclui uma pós-data de novembro de 2009, em que se comenta brevemente as comemorações do vigésimo aniversário da queda do muro de Berlim.

“Fontes para a história dos museus de arte em Portugal”. Um projeto, muitos projetos…

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Luís Soares

2013-04-01

Full Text Available Este artigo tem como objetivo dar notícia das atividades que estão a ser desenvolvidas no âmbito do projeto “Fontes para a História dos Museus de Arte em Portugal” e que se centram no estudo, sistematização e divulgação de fontes documentais relacionadas com a criação e atividade dos museus de arte em Portugal. Sendo esta uma investigação inédita no campo da Museologia e da História da Arte no nosso país, definiu-se como prioritária a documentação associada a instituições de referência da museologia e da formação de coleções públicas, que se ligam também aos primórdios dos museus de arte portugueses: a Academia Nacional de Belas-Artes, o Museu Nacional de Arte Antiga e o Palácio Nacional da Ajuda. Este projeto abarca ainda a segunda metade do século XX, contemplando a ação da Fundação Calouste Gulbenkian nas artes plásticas. Pretende-se, deste modo, criar novos pontos de partida, fundamentados pela análise das fontes primárias, para a elaboração de uma História dos Museus em Portugal.

Floquet-Magnus theory and generic transient dynamics in periodically driven many-body quantum systems

Science.gov (United States)

Kuwahara, Tomotaka; Mori, Takashi; Saito, Keiji

2016-04-01

This work explores a fundamental dynamical structure for a wide range of many-body quantum systems under periodic driving. Generically, in the thermodynamic limit, such systems are known to heat up to infinite temperature states in the long-time limit irrespective of dynamical details, which kills all the specific properties of the system. In the present study, instead of considering infinitely long-time scale, we aim to provide a general framework to understand the long but finite time behavior, namely the transient dynamics. In our analysis, we focus on the Floquet-Magnus (FM) expansion that gives a formal expression of the effective Hamiltonian on the system. Although in general the full series expansion is not convergent in the thermodynamics limit, we give a clear relationship between the FM expansion and the transient dynamics. More precisely, we rigorously show that a truncated version of the FM expansion accurately describes the exact dynamics for a certain time-scale. Our theory reveals an experimental time-scale for which non-trivial dynamical phenomena can be reliably observed. We discuss several dynamical phenomena, such as the effect of small integrability breaking, efficient numerical simulation of periodically driven systems, dynamical localization and thermalization. Especially on thermalization, we discuss a generic scenario on the prethermalization phenomenon in periodically driven systems.

Reading on the Computer Screen: Does Font Type Have Effects on Web Text Readability?

Science.gov (United States)

Ali, Ahmad Zamzuri Mohamad; Wahid, Rahani; Samsudin, Khairulanuar; Idris, Muhammad Zaffwan

2013-01-01

Reading on the World Wide Web has become a daily habit nowadays. This can be seen from the perspective of changes in readers' tendency to be more interested in materials from the internet, than printed media. Taking these developments into account, it is important for web-based instructional designers to choose the appropriate font, especially for…

As fontes de Duarte Pacheco Pereira no "Esmeraldo de Situ Orbis" (IV

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Joaquim Barradas de Carvalho

1966-06-01

Full Text Available A História Natural de Plínio é logo após o De Situ Orbis de Pompônio Mela, a fonte mais importante de Duarte Pacheco Pereira no seu Esmeraldo de situ orbis. Encontramos no texto da obra de Duarte Pacheco vinte e sete passos em que, de maneira explícita ou não, verificamos nitidamente a influência de Plínio e da sua História Natural.

EFEITO DE FONTES E DOSES DE NITROGÊNIO NA REAÇÃO DA CULTIVAR DE TRIGO BR 14 À Septoria nodorum

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Eduardo Dânia Ugalde

1993-04-01

Full Text Available O experimento foi conduzido em casa de vegetação da UFSM no período de maio a outubro de 1989. Três plantas de trigo, cultivar BR 14, foram cultivadas em cada vaso (6 litros com Solo Podzólico Vermelho Amarelo (Unidade de Mapeamento São Pedro, com 70% da capacidade de campo, constituindo a unidade experimental. O delineamento experimental foi inteiramente casualizado, sendo que os tratamentos foram fontes e doses de N, e inoculação das plantas com Septoria nodorum, constituindo um trifatorial com três repetições. As fontes de nitrogênio utilizadas foram uréia e salitre do Chile nas doses de 30, 60, 90 e 120kg/ha de N, sendo parte aplicado na semeadura (30% e o restante (70% no estádio 2 (início do afilhamento da escala proposta por LARGE (1956. Os tratamentos que não foram inoculados com Septoria nodorum apresentaram maior percentagem de N no tecido, o que parece não ter sido afetado tanto com relação a fonte de nitrogênio nem quanto a dose utilizada. O teor de matéria seca, sendo consideradas plantas inoculadas e não inoculadas, não diferiu tanto para fontes como para doses de nitrogênio (kg/ha. A severidade da doença foi maior em plantas que receberam maiores doses de adubação nitrogenada.

Uso da alga Lithothamnium calcareum como fonte alternativa de cálcio nas rações de frangos de corte

OpenAIRE

Carlos,André Carreira; Sakomura,Nilva Kazue; Pinheiro,Sandra Regina Freitas; Toledano,Fernando Marcelo Micai; Giacometti,Renato; Silva Júnior,José Walter da

2011-01-01

Objetivou-se, com este trabalho, avaliar o uso da alga Lithothamnium calcareum (Pallas) Areschoug nas rações para frangos de corte de 1 a 21 e 21 a 42 dias de idade, em substituição à fonte de cálcio tradicional (calcário calcítico). Para isso, foram utilizados 300 pintos machos, da linhagem Cobb®, que receberam rações contendo o calcário calcítico e a alga Lithothamnium calcareum (colhida de inteira e na forma de areia biodentrítica) como fontes de cálcio. O delineamento experimental utiliza...

[On the quest for the right way--life and work of Magnus Schmid (1918-1977), historian of medicine].

Science.gov (United States)

Mildenberger, Florian

2008-01-01

Magnus Schmid seems to have been an "ordinary historian of medicine" from 1950 to 1977 in Munich and Erlangen. Following his death he became forgotten by his colleagues. But despite the fact, that he did not publish great books, he modernized the subject and was open to new interpretations of history of medicine and to intercultural views on history. For more than 20 years he seemed to be a quite liberal researcher, but following the changes in society after the 1968/69 revolt, he became a fighter for a new conservatism. Schmid was unwilling to accept that people decided freely about their body and health, without consulting doctors like him while he believed in an unchangeable foundation of ethics in medicine (e. g. abortion). So Schmid, in the last years of his life to the fact, made his valuable scientific works disappear behind his dubious campaigning against the modernized western German society.

The Gut Entomotype of Red Palm Weevil Rhynchophorus ferrugineus Olivier (Coleoptera: Dryophthoridae and Their Effect on Host Nutrition Metabolism

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Abrar Muhammad

2017-11-01

Full Text Available For invasive insects, the potential roles of gut microbiota in exploiting new food resources and spreading remain elusive. Red palm weevil (RPW, Rhynchophorus ferrugineus Olivier, is an invasive destructive pest which feeds on nutrient-poor tender tissues and has caused extensive mortality of palm trees. The microbes associated with insects can improve their nutrition assimilation. However, experimental evidence on the interactions between RPW and its gut microbiota is still absent. The aim of this study is to determine the dynamics changes and the bacterial entomotype in the RPW gut and its potential physiological roles. Here, we confirmed RPW harbors a complex gut microbiota mainly constituted by bacteria in the families Enterobacteriaceae, Lactobacillaceae, Entomoplasmataceae, and Streptococcaceae. RPW gut microbiota exhibited a highly stable microbial community with low variance in abundance across different life stages and host plants. Furthermore, the abundance of Enterobacteriaceae was markedly increased but that of Acetobacteraceae was reduced significantly after administration of antibiotics. Although no significant effects were found on the body weight gain of RPW larvae, these alterations dramatically decreased the concentration of hemolymph protein and glucose while that of hemolymph triglyceride increased. In the gut of wild-caught RPW larvae, seven bacterial species in the genera Klebsiella, Serratia, Enterobacter, and Citrobacter were shown to have an ability to degrade cellulose. Together, RPW accommodate a stable gut microbiota which can degrade plant polysaccharides and confer their host optimal adaptation to its environment by modulating its metabolism.

Disponibilidade biológica do fósforo de diferentes fontes para eqüinos em crescimento

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FURTADO CARLOS EDUARDO

2000-01-01

Full Text Available Objetivou-se neste estudo, determinar a disponibilidade biológica do P de diferentes fontes, para eqüinos em fase de crescimento. Utilizaram-se dezesseis eqüinos machos em fase de crescimento, submetidos à aplicação de quatro fontes fosfatadas -- fosfato de rocha de Tapira (TAP, fosfato de rocha de Patos de Minas (PAT, fosfato bicálcico (BIC e farinha de osso (FOS --, adicionadas à dieta basal em quantidades suficientes para fornecer 22 g de P/animal/dia. No 16º dia, foram-lhes injetados 30 MBq de 32P/animal, e coletaram-se amostras de sangue, fezes e urina, durante sete dias. Foram determinadas as atividades específicas no plasma, fezes e urina e calculou-se a perda endógena fecal e a absorção real de P. Os valores obtidos quanto ao P consumido, P excretado, P no plasma e P retido não apresentaram diferenças estatísticas (P>0,05. Os valores de absorção real do P do TAP, PAT, BIC e da FOS foram, respectivamente, 25,23%, 33,97%, 31,71% e 29,36%. Não houve diferenças estatísticas (P>0,05 entre as fontes estudadas. Em relação ao BIC, as rochas fosfáticas apresentaram altos valores de disponibilidade biológica.

Contribuição das fontes de sedimentos em uma bacia hidrográfica agrícola sob plantio direto

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Tales Tiecher

2014-04-01

Full Text Available O conhecimento das principais fontes difusas de produção de sedimento pode aumentar a eficiência de utilização dos recursos públicos, investidos em estratégias de gestão em bacias hidrográficas, que visem mitigar a transferência de sedimentos aos cursos d'água. Objetivou-se com este trabalho avaliar as fontes de sedimentos numa bacia hidrográfica rural de cabeceira com predomínio de cultivos anuais sob plantio direto e com intensa e inadequada exploração dos recursos naturais, por meio da quantificação da contribuição relativa das estradas e das lavouras na produção global de sedimentos. A bacia hidrográfica está localizada no município de Júlio de Castilhos, Rio Grande do Sul. O período de estudo foi de maio de 2009 a abril de 2011. Para a identificação das fontes, foi utilizado o método fingerprinting, que compara os solos de diferentes fontes e os sedimentos que são encontrados em suspensão no canal de drenagem, usando elementos traçadores. O manejo inadequado do solo nas áreas de lavoura, a falta de planejamento das vias de acesso e a ausência de práticas de controle do escoamento superficial, que sejam compatíveis com a fragilidade condicionada pelos solos e pelo relevo da bacia hidrográfica, têm provocado o surgimento de processos erosivos acelerados com efeitos negativos ao agricultor e à sociedade. As estradas apresentam alta porcentagem de contribuição na transferência de sedimentos, mas a contribuição das áreas de lavoura aumenta em precipitações pluviais de alta magnitude. Isso evidencia que a magnitude dos eventos de chuva influencia a proporção de contribuição entre as fontes ao longo do ano na bacia hidrográfica, interferindo no processo de mobilização de sedimentos e nutrientes em direção à rede de drenagem.

As fontes literárias no ensino de História

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Joan Pagès Blanch

2013-07-01

Full Text Available Existem muitos recursos para levar aos alunos do ensino fundamental e médio o conhecimento e a compreensão do passado, boa parte deles são habitualmente utilizados nas salas de aula. Provavelmente um dos recursos com mais potencialidades educativas é a literatura e, em especial, o romance. Neste artigo propomos que a literatura pode contribuir para a aprendizagem do passado e qual é o valor educativo das fontes literárias no ensino de história e a sugestão de algumas ideias para o seu tratamento na prática.

Tolerance to Non-Opioid Analgesics is Opioid Sensitive in the Nucleus Raphe Magnus.

Science.gov (United States)

Tsagareli, Merab G; Nozadze, Ivliane; Tsiklauri, Nana; Gurtskaia, Gulnaz

2011-01-01

Repeated injection of opioid analgesics can lead to a progressive loss of effect. This phenomenon is known as tolerance. Several lines of investigations have shown that systemic, intraperitoneal administration or the microinjection of non-opioid analgesics, non-steroidal anti-inflammatory drugs (NSAIDs) into the midbrain periaqueductal gray matter induces antinociception with some effects of tolerance. Our recent study has revealed that microinjection of three drugs analgin, ketorolac, and xefocam into the central nucleus of amygdala produce tolerance to them and cross-tolerance to morphine. Here we report that repeated administrations of these NSAIDs into the nucleus raphe magnus (NRM) in the following 4 days result in progressively less antinociception compare to the saline control, i.e., tolerance develops to these drugs in male rats. Special control experiments showed that post-treatment with the μ-opioid antagonist naloxone into the NRM significantly decreased antinociceptive effects of NSAIDs on the first day of testing in the tail-flick (TF) reflex and hot plate (HP) latency tests. On the second day, naloxone generally had trend effects in both TF and HP tests and impeded the development of tolerance to the antinociceptive effect of non-opioid analgesics. These findings strongly support the suggestion of endogenous opioid involvement in NSAIDs antinociception and tolerance in the descending pain-control system. Moreover, repeated injections of NSAIDs progressively lead to tolerance to them, cross-tolerance to morphine, and the risk of a withdrawal syndrome. Therefore, these results are important for human medicine too.

Fontes de Sódio e Relação Sódio: Cloro para Frangos de Corte Sodium Chloride Levels in Broiler Diets

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AV Fischer da Silva

2000-04-01

Full Text Available Foram utilizados 2.880 pintos de corte, para avaliar os efeitos de diferentes fontes de sódio (Na+ e relações sódio:cloro (Na+:Cl- na ração. As aves receberam ração e água ad libtum. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos e seis repetições. O ganho de peso, consumo de ração, conversão alimentar e mortalidade não foram influenciados (p>0,05 pela substituição da fonte tradicional de Na e pelas diferentes relações Na:Cl. A umidade da cama foi afetada pela fonte e níveis de Na na ração. Os resultados mostraram que pode-se utilizar o NaHCO3 como fonte parcial à exigência de Na para frangos de corte de 1 a 47 dias de idade.A trial was carried out with 2,880 day old chicks to evaluate different sources of sodium (Na+ and Na+:Cl- ratio in diets. Water and diets were available in "ad libitum" feeding. Experimental design was completely randomized with four treatments and six repetitions. The performance (feed intake, body weight, feed conversion and mortality was not affected (P>0.05 by treatments, but different levels and sources of Na+ increased litter moisture. The NaHCO3 can be used in chicken broilers diets in partial substitution of Na for day 1 to 47.

Fontes de energias alternativas e os desafios para a cadeia produtiva automotiva

OpenAIRE

Alves, Marcelo Ivanildo dos Santos

2011-01-01

Resumo: A indústria automotiva sempre esteve envolta num processo permanente de inovações e mais recentemente ela vem passando por várias e importantes mudanças. Essas mudanças decorrem de três fatores fundamentais: motivações ambientais, preço do petróleo e novos mercados. Num cenário de aperfeiçoamento dos padrões atuais de propulsão veicular, percebe-se o surgimento de fontes de energias alternativas. Onde o etanol surge como alternativa e poderá ser adotado em determinados mercados, como ...

Nova história da administração pública brasileira: pressupostos teóricos e fontes alternativas

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Frederico Lustosa da Costa

2016-04-01

Full Text Available Resumo: Nos últimos anos, diversas iniciativas isoladas assinalam a redescoberta da história da administração pública e a utilidade do seu estudo para a compreensão do Estado contemporâneo como ordem social, instituição e representação. Esses trabalhos representam um avanço com relação à produção historiográfica publicada até os anos 1980. Entretanto, ainda persistem fragilidades conceituais e metodológicas que pouco a pouco começam a ser superadas. Além disso, uma das maiores dificuldades dos pesquisadores que se engajam nesse esforço é a identificação e o acesso a fontes mais diversificadas para a elaboração de uma nova história da administração pública, baseada nos avanços da historiografia mais recente. Este artigo se propõe a discutir pressupostos teórico-metodológicos para o desenvolvimento dessa nova história e contribuir para a identificação, apresentação e análise dessas fontes. A partir da indicação desses pressupostos, do estabelecimento de uma periodização da história do Estado brasileiro e da identificação de temas emergentes, foram definidas seis categorias em que as fontes podem, num primeiro momento, ser enquadradas para agrupar temas, acervos ou bases de dados, a saber: repertório das leis sobre organização governamental; falas do trono e mensagens presidenciais; relatórios do TCU; estatísticas; arquivos pessoais; histórias de vida. O levantamento não pretende apresentar fontes totalmente inéditas nem ser exaustivo, mas oferecer pistas para a utilização de materiais ainda muito poucos usuais em estudos sobre história da administração pública.

Efeito da fonte de amido e do manejo alimentar no controle da glicemia em cães com diabete mellitus naturalmente adquirida

OpenAIRE

Teshima, Eliana [UNESP

2010-01-01

A diabetes mellitus (DM) é uma das endocrinopatias mais comuns em cães, sendo o tratamento um desafio. As fibras dietéticas têm sido relatadas como benéficas no auxílio do controle glicêmico de cães diabéticos, mas nenhum trabalho faz referência aos efeitos de diferentes fontes de amido sobre a resposta glicêmica nesses animais. Neste trabalho, objetivou-se estudar os efeitos de duas diferentes fontes de amido (arroz e sorgo) em dietas com teor moderado de fibra sobre o controle glicêmico de ...

Design and implementation of a digital clock showing digits in Bangla font using microcontroller AT89C4051

OpenAIRE

Muslim, Nasif; Adnan, Md. Tanvir; Kabir, Mohammad Zahidul; Kabir, Md. Humayun; Islam, Sheikh Mominul

2012-01-01

In this paper, a digital clock is designed where the microcontroller is used for timing controller and the font of the Bangla digits are designed, and programmed within the microcontroller. The design is cost effective, simple and easy for maintenance.

Para cada universo colecionista, suas fontes: dinâmicas informacionais nas tramas de Clifford Janeway

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Kelly Castelo Branco da Silva Melo

2017-09-01

Full Text Available O artigo parte do pressuposto que a literatura policial, como modo de registro e expressão de experiências ficcionais, ela mesma também considerada, nos estudos das áreas de Biblioteconomia e Ciência da Informação, uma fonte de informação, constitui-se de uma abordagem que torna possível a análise/interpretação e representação de quadros de referências sócio-históricas e, mais especificamente, de determinadas práticas colecionistas. Como desdobramento de estudos sobre bibliofilia em Memória Social, o artigo toma como campo empírico cinco romances policiais escritos pelo norte-americano John Dunning. Por meio da leitura analítica desses livros, propõe teórica e metodologicamente identificar, recortar e descrever as fontes de informação julgadas relevantes para as dinâmicas das tramas, visando elucidar o que é possível depreender do universo bibliófilo, e o que, nesse universo ficcional, constitui e representa práticas informacionais utilizadas por/em um universo colecionista não ficcional.

The FONT5 Bunch-by-Bunch Position and Angle Feedback System at ATF2

Science.gov (United States)

Apsimon, R. J.; Bett, D. R.; Burrows, P. N.; Christian, G. B.; Constance, B.; Davis, M. R.; Gerbershagen, A.; Perry, C.; Resta-Lopez, J.

The FONT5 upstream beam-based feedback system at ATF2 is designed to correct the position and angle jitter at the entrance to the ATF2 final-focus system, and also to demonstrate a prototype intra-train feedback system for the International Linear Collider interaction point. We discuss the hardware, from stripline BPMs to kickers, and RF and digital signal processing, as well as presenting results from the latest beam tests at ATF2.

Fontes primárias no ensino de física: considerações e exemplos de propostas

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Giovanninni Leite de Freitas Batista

2015-10-01

Full Text Available http://dx.doi.org/10.5007/2175-7941.2015v32n3p663 Em contraste com a tendência positivista de outrora, fontes primárias não são mais consideradas como documentos oficiais que contém “a verdade sobre o passado”. Atualmente, são compreendidas como artefatos culturalmente produzidos que refletem intencionalidades de personagens. São essenciais para o trabalho interpretativo realizado por historiadores e historiadores da ciência. No contexto educacional, na disciplina escolar de História, os estudantes já costumam ser convidados a uma interpretação diacrônica de documentos históricos. De modo distinto, o uso desse tipo de material é ainda raro em iniciativas para a inserção da História e Filosofia da Ciência no ensino de Física. Adicionalmente, há lacunas quanto a refletir sobre o uso didático dessas fontes em aulas de Física numa perspectiva não ilustrativa, mas sim investigativa, a qual estaria em ressonância com pressupostos historiográficos da História da Ciência e objetivos didáticos atualizados. Atividades investigativas, dialógicas, baseadas na interpretação diacrônica de documentos podem incentivar a curiosidade e a imaginação dos alunos acerca do processo de construção do conhecimento científico, evocando elementos usualmente ausentes em livros didáticos. O presente artigo reflete sobre tais questões e discute dois exemplos de possibilidades didáticas de uso de fontes primárias relacionadas à História do Vácuo e da Pressão Atmosférica.

Anti-nociceptive effects of calcitonin gene-related peptide in nucleus raphe magnus of rats: an effect attenuated by naloxone.

Science.gov (United States)

Huang, Y; Brodda-Jansen, G; Lundeberg, T; Yu, L C

2000-08-04

The present study investigated the role of calcitonin gene-related peptide (CGRP) on nociception in nucleus raphe magnus (NRM) and the interaction between CGRP and opioid peptides in NRM of rats. CGRP-like immunoreactivity was found at a concentration of 6.0+/-0. 77 pmol/g in NRM tissue of ten samples of rats, suggesting that it may contribute to physiological responses orchestrated by the NRM. The hindpaw withdrawal latency (HWL) to thermal and mechanical stimulation increased significantly after intra-NRM administration of 0.5 or 1 nmol of CGRP in rats, but not 0.25 nmol. The anti-nociceptive effect induced by CGRP was antagonized by following intra-NRM injection of 1 nmol of the CGRP receptor antagonist CGRP8-37. Furthermore, the CGRP-induced anti-nociceptive effect was attenuated by following intra-NRM administration of 6 nmol of naloxone. The results indicate that CGRP and its receptors play an important role in anti-nociception, and there is a possible interaction between CGRP and opioid peptides in NRM of rats.

Design of the ILC Prototype FONT4 Digital Intra-Train Beam-Based Feedback System

International Nuclear Information System (INIS)

Burrows, P.; Queen Mary, U. of London; Christian, G.B.; Hartin, A.F.; Dabiri Khah, H.; White, G.R.; Oxford U.; Clarke, C.C.; Perry, C.; Oxford Instruments; Kalinin, A.; Daresbury; McCormick, D.J.; Molloy, S.; Ross, M.C.; SLAC

2007-01-01

We present the design of the FONT4 digital intra-train beam position feedback system prototype and preliminary results of initial beam tests at the Accelerator Test Facility (ATF) at KEK. The feedback system incorporates a fast analogue beam position monitor (BPM) front-end signal processor, a digital feedback board, and a kicker driver amplifier. The short bunchtrain, comprising 3 electron bunches separated by c. 150ns, in the ATF extraction line was used to test components of the prototype feedback system

FLAVONÓIS E FLAVONAS: FONTES BRASILEIRAS E FATORES QUE INFLUENCIAM A COMPOSIÇÃO EM ALIMENTOS

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L. S. HUBER

2008-12-01

Full Text Available

O interesse em pesquisar os flavonóides se deve a estudos que indicam efeitos benéfi cos à saúde, principalmente na prevenção de doenças degenerativas, como câncer e doenças cardiovasculares. A determinação dos flavonóides em alimentos, bem como a investigação dos fatores que influenciam a composição, são necessários para apontar as fontes e otimizar as condições de produção, processamento e estocagem, a fi m de manter ou incrementar seus teores na dieta da população, para promoção da saúde. Os chás preto e verde e a erva mate são muito ricos em quercetina, sendo os dois primeiros fontes também de miricetina e kaempferol e o último de kaempferol. As melhores fontes entre as frutas são pitanga e caju, que contém quercetina, kaempferol e miricetina; acerola, tendo quercetina e kaempferol, e taperebá e maçã com altos conteúdos de quercetina. Entre as hortaliças consumidas no Brasil, as principais fontes são cebola, couve e rúcula, com altos teores de quercetina, rúcula e couve com altos níveis de kaempferol, e salsa com grande quantidade de apigenina. Os teores de flavonóides nos alimentos são determinados geneticamente, porém, são influenciados também por fatores como estação do ano, clima, composição do solo, estádio de maturação, preparo, processamento e estocagem dos alimentos.

Mercury and sulphur among the High Medieval alchemists: from Rāzī and Avicenna to Albertus Magnus and pseudo-Roger Bacon.

Science.gov (United States)

Newman, William R

2014-11-01

This essay challenges the often expressed view that the principles of metals, namely mercury and sulphur, were generally viewed by alchemists as being of a 'metaphysical' character that made them inaccessible to the tools and operations of the laboratory. By examining a number of Arabo-Latin and Latin alchemical texts in circulation before the end of the thirteenth century, the author presents evidence that most alchemists of the period considered mercury and sulphur to be materials subject to techniques of purification in the same way that naturally occurring salts and minerals could be freed of their impurities or dross. The article also points to the immense influence of Avicenna and Albertus Magnus in formulating the theory that mercury and sulphur were compounds of different materials, containing both fixed and unfixed components. Finally, the author briefly examines the relationship between this materialist approach to the principles and the chymical atomism of early modern authors who were deeply aware of medieval alchemical literature.

DESENVOLVIMENTO E COMPOSIÇÃO CORPORAL DE ALEVINOS DE JUNDIÁ (Rhamdia quelen ALIMENTADOS COM DIETAS CONTENDO DIFERENTES FONTES DE LIPÍDIOS

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Melo José Fernando Bibiano

2002-01-01

Full Text Available Foram testadas três fontes de lipídios em rações experimentais para juvenis de jundiá Rhamdia quelen com a inclusão de 5% na dieta de óleo de canola (T1, óleo de fígado de bacalhau (T2 ou banha suína (T3, usando o delineamento inteiramente casualizado com três tratamentos e três repetições. O desempenho e o rendimento de carcaça não foram afetados pelas fontes de lipídios testadas, porém estas influenciaram na maior deposição de proteína na carcaça dos peixes do tratamento T1 e de gordura na carcaça no tratamento T3.

Fontes alimentares de Triatoma pseudomaculata no Estado do Ceará, Brasil

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Simone Patrícia Carneiro Freitas

2005-01-01

Full Text Available OBJETIVO: Triatoma pseudomaculata, espécie peridomiciliar, é encontrada apresentando baixa taxa de infecção por Trypanosoma cruzi. Com o objetivo de identificar os possíveis reservatórios de T. cruzi, investigou-se a ocorrência desse triatomíneo no domicílio, bem como suas fontes alimentares. MÉTODOS: De janeiro de 2001 a julho de 2002 foram capturados 921 espécimes de T. pseudomaculata em 13 municípios do sul do Estado do Ceará. O conteúdo intestinal dos triatomíneos foi retirado, espalhado em disco de papel de filtro e analisado por precipitina para os seguintes anti-soros: ave, roedor, cão, gambá, lagarto, boi/cabra, gato, porco, barata e humano. A investigação da presença de T. cruzi foi feita observando-se parte do conteúdo intestinal dos insetos a fresco, entre lâmina e lamínula, e pela sua semeadura em meio de cultura. RESULTADOS: Do total examinado, 184 (90,6% foram positivos para os anti-soros testados: ave (62,5%> roedor (33,7%> cão (20,1%> gambá (9,8%> lagarto (5%> boi-cabra (5%> gato (2,7%> porco (2,2%> barata (2,2%> humano (1,6%. As alimentações variaram de zero (não reagiram a quatro da seguinte forma: não reagiram (9,4%, uma (57,1%, duas (26%, três (7% ou quatro (0,5%. Das fontes alimentares identificadas apenas três espécimes (1,6% foram positivos para T. cruzi. CONCLUSÕES: A baixa incidência de sangue humano mostra que T. pseudomaculata está bem adaptado ao peridomicílio. Porém, a vigilância epidemiológica na região sul do Estado do Ceará se faz necessária tendo em vista a proximidade da espécie ao domicílio.

FONTES DE FÓSFORO PARA ADUBAÇÃO DE CANA-DE-AÇÚCAR FORRAGEIRA NO CERRADO PHOSPHORUS SOURCES FOR SUGARCANE FORAGE CULTIVARS FERTILIZATION IN THE BRAZILIAN SAVANNAH

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Cleiton Gredson Sabin Benett

2011-01-01

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font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY">font-family: Times New Roman,serif;">font-size: small;">Com a expansão da cana-de-açúcar em áreas de Cerrado, há necessidade de se estudar o manejo da adubação, principalmente do fósforo (P, pois é o nutriente que mais limita a produção, neste ecossistema. Objetivou-se, com este trabalho, comparar o efeito de fontes de fósforo (P, em duas variedades de cana-de-açúcar. O experimento foi realizado em Alta Floresta (MT, em Latossolo Vermelho-Amarelo distrófico. O delineamento experimental utilizado foi o de blocos casualizados, em esquema fatorial 4x2, sendo avaliados os fatores fontes de P (farinha de ossos, fosfato de Arad e superfosfato triplo, na dose de 100 kg de P₂O₅ ha^-1, acrescidas de uma testemunha sem aplicação do nutriente, e as variedades IAC 86 2480 e SP 79 101, com quatro repetições. Foram avaliados a altura de plantas, diâmetro de colmos, número de perfilhos, produtividade (matéria fresca e seca, eficiência do teor de P na planta, extração de P e viabilidade econômica, na escolha da fonte e ºBrix. A adubação fosfatada influenciou o número e altura de plantas, concentração de P na planta, produtividade de matéria fresca e seca. Quanto às fontes estudadas, houve semelhança nos resultados encontrados, mas com maior eficiência para a farinha de ossos, que promoveu maior acúmulo de P na planta e maior extração pela cultura, e apresentou maior viabilidade econômica. A variedade IAC 86 2480 apresentou médias superiores às da SP 79 1011, em todos os parâmetros avaliados.

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Produtividade e Qualidade de Frutos de Melancia em Função de Alterações na Relação Fonte-Dreno

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Hamurábi Anízio Lins

2013-10-01

Full Text Available As hortaliças de frutos são cultivadas em todas as regiões do Brasil, e no nordeste, em que as condições de solo e clima favorecem o crescimento e desenvolvimento das plantas e dos frutos, o cultivo de plantas da família das Cucurbitáceas tem se destacado proporcionando a obtenção de plantas com alta produtividade e qualidade dos frutos colhidos. A melancieira é uma planta que permite várias formas de manipulação da relação entre a fonte e o dreno. Estas alterações na fonte e no dreno exercem influência na produtividade e qualidade dos frutos na colheita. O objetivo deste trabalho foi avaliar a produtividade e qualidade de frutos de melancieira em função de alterações na relação entre fonte e o dreno. No experimento os tratamentos constaram da condução da poda da haste dominante em diferentes épocas de cultivo (25, 30, 35 e 40 dias após o transplante - DAT e do número de frutos por planta (1 e 2. O experimento foi instalado no DBC em parcelas subdivididas com quatro repetições. As modificações induzidas na planta de melancieira por meio de podas e raleio de frutos proporcionaram alterações na relação fonte e dreno sendo benéfica para as características de produtividade e qualidade dos frutos. A poda da haste principal aos 35 DAT elevou a massa dos frutos e produtividade independente do número de frutos na planta. Plantas conduzidas com dois frutos proporcionaram redução na massa do fruto e dos sólidos solúveis e elevação na produtividade da cultura.

Effects of gamma irradiation on some major elements and mating competitiveness of the red Palm Weevil, Rhynchophorus Ferrugineus (OLIVIER), Coleoptera : Curculionidae

International Nuclear Information System (INIS)

Mohamed, H.F.; EL-Naggar, S.M.; EL-Kkoly, E.M.S.

2006-01-01

In the present study, effects of three gamma doses (5, 10 and 15 Gray) applied to adult male and female weevils of the red palm weevil, Rhynchophorus ferrugineus (Olivier), were investigated. The concentration levels of sodium, potassium, calcium and phosphorous were determined in the haemolymph treated and untreated F1 progeny (males or females) at the 4th instar larvae descendants from irradiated parents male and female weevils. Results indicated that gamma irradiation might have an effect on most investigated elements. No clear relationship could be detected among the applied doses and effect on the level of any of the studied elements. Male mating competitiveness was determined from the egg infertility resulting from F1 males originating from irradiated parental male weevils confined in various ratios with unirradiated adults. Studies comparing mating performance of irradiated males with that of normal males revealed that the mating competitiveness of the irradiated males was increased as the ratio of irradiated to unirradiated males increased from 1 : 1 to 3 : 1 , except at the lesser dose 5 Gy .The results also showed that the infertility was increased as the ratios increased except at the dose rate 10 Gy . The irradiated males were not fully competitive with normal males at the dose 5 Gy among the two ratios 1 : 1 and 3 : 1 and also among the ratio 1:1 at the doses 10 and 15 Gy. The irradiated males were fully competitive with normal males at the doses 10 and 15 Gy among the ratio 3 : 1

Crescimento de mudas de Gonçalo-Alves (Astronium fraxinifolium sob diferentes fontes e doses de nitrogênio

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Diego Gonçalves Feitosa

2011-06-01

Full Text Available A degradação do cerrado e a perda de sua biodiversidade demandam a revegetação de áreas desse bioma, onde existem espécies com potencial de uso econômico e ambiental pouco conhecidos. Este trabalho teve o objetivo de avaliar o efeito de diferentes fontes e doses de nitrogênio sobre o crescimento de mudas de Gonçalo-Alves (Astronium fraxinifolium, espécie arbórea nativa do cerrado ameaçada de extinção. O experimento foi realizado em estufa na UNESP/Campus de Ilha Solteira. O solo utilizado (Latossolo Vermelho foi coletado na profundidade de 0,0 a 0,20 m, em Selvíria (MS. As fontes de nitrogênio utilizadas ((NH42SO4, NH4NO3 e Ca(NO32 foram aplicadas nas doses de 0; 50; 100; 150 e 200 mg dm-3. O N aplicado na forma de Ca(NO32 apresentou melhor resultado para o solo utilizado. O crescimento das mudas de Gonçalo-Alves não foi influenciado pelas diferentes fontes de N, mas respondeu às doses. A altura da planta, o diâmetro do coleto, o teor de clorofila foliar, o peso da matéria fresca e seca da parte aérea e do sistema radicular, o peso seco total, bem como o IQD e a razão entre o peso da matéria seca da parte aérea e do sistema radicular, apresentaram valor máximo para doses que variaram de 59,0 a 72,5 mg dm-3 de N, permitindo sugerir a dose de 72,5 mg dm-3 de N como suficiente para o crescimento satisfatório de mudas de Gonçalo-Alves.

Mineralogia e fontes de potássio em solos no Rio Grande do Sul cultivados com arroz irrigado

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R. M. Castilhos

2002-09-01

Full Text Available Estudos desenvolvidos com arroz irrigado por inundação no estado do Rio Grande do Sul têm evidenciado ausência de resposta desta cultura à adubação potássica, mesmo em solos com baixo teor de potássio disponível. Este trabalho objetivou verificar a contribuição da mineralogia destes solos como fonte potencial de potássio para a cultura do arroz. Para tal, selecionaram-se quatro solos representativos das zonas orizícolas do estado do Rio Grande do Sul (Planossolo Hidromórfico, Planossolo Háplico, Gleissolo Háplico e Chernossolo Ebânico cultivados com arroz irrigado. Estes solos apresentam baixos teores de potássio trocável e não apresentam respostas à adubação potássica. Nas amostras dos horizontes A e B dos quatro solos, foram analisadas a granulometria e a composição química. A mineralogia das frações areia, silte e argila foi identificada por difratometria de raios-X. Os principais minerais fontes de potássio foram os seguintes: na fração areia, feldspatos e micas; nas frações silte e argila, feldspatos, micas, esmectitas e esmectitas com hidróxi-alumínio entrecamadas. A quantidade de potássio total, nas frações granulométricas, diferiu entre os solos. As frações silte e argila apresentaram os maiores teores de K-total, exceto para o Planossolo Háplico, que revelou maior reserva de potássio na fração areia. A ausência, ou a baixa resposta, à adubação potássica na cultura do arroz irrigado nesses quatro solos pode ser explicada pelos minerais fontes de potássio que ocorrem nesses solos.

The IARC TP53 mutation database: a resource for studying the significance of TP53 mutations in human cancers

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Magali Olivier

2007-02-01

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font-family: QuorumITCbyBT-Book">REFERENCES

font-size: 10pt; font-family: QuorumITCbyBT-Light">1. Petitjean A, Mathe E, Kato S, Ishioka C, Tavtigian SV, Hainaut P, Olivier M. Impact of mutant p53 functional properties on TP53 mutation patterns and tumor phenotype: lessons from recent developments in the IARC TP53 database. Hum Mutat. 2007 Feb 20;28(6:622-629.

font-size: 10pt; font-family: QuorumITCbyBT-Light">2. Petitjean A, Achatz MI, Borresen-Dale AL, Hainaut P, Olivier M. TP53 mutations in human cancers: functional selection and impact on cancer prognosis and outcomes. Oncogene. 2007 font-size: 10pt; font-family: QuorumITCbyBT-Light">Apr 2;26(15:2157-65.font-size: 10pt; font-family: QuorumITCbyBT-Book">

Águas minerais de algumas fontes naturais brasileiras Mineral waters from brazilian natural sources

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M. A. P. Rebelo

1999-07-01

Full Text Available Paciente de litíase renal é estimulado a aumentar a ingestão hídrica, principalmente na forma de água tratada da torneira, pela irrelevante biodisponibilidade de minerais em sua composição. O benefício é atribuído à redução da saturação dos sais urinários. Não está claro se as águas minerais naturais comercialmente disponíveis também é benéfica. OBJETIVO. Divulgar as informações sobre as características químicas e físico-químicas de águas minerais naturais de algumas das diversas fontes brasileiras. Essas informações serão de utilidade na análise de protocolos de pesquisa e na orientação do paciente. MÉTODOS. Foi feito uma coletânea das informações que constam nos rótulos de garrafas de águas minerais naturais, predominantemente não-gasosas, acessíveis ao consumo carioca. A partir da composição salina provável, foi calculada a concentração iônica de cada mineral. RESULTADOS. Foram estudadas as informações de 36 fontes situadas em alguns estados brasileiros. O pH, a 25oC, variou de 4,1 a 9,3 na dependência da fonte e foi linearmente correlacionado com as concentrações dos cátions cálcio, magnésio, sódio e do anion bicarbonato. Isto foi atribuído à alta alcalinidade desses sais, que contêm cerca de 70% de bicarbonato na molécula. Os teores de cálcio (0,3 a 42 mg/l, de magnésio (0,0 a 18 mg/l e de bicarbonato (4 a 228 mg/l foram considerados relativamente baixos. CONCLUSÃO. O teor mineral das fontes brasileiras que compuseram esse levantamento é baixo, com cerca de 70% delas apresentando teores de cálcio e de magnésio abaixo de 10 mg/l e 1 mg/l, respectivamente, semelhantes ao da água tratada da torneira.PURPOSE. To divulge information on the chemical composition and physical-chemical features of some mineral waters from Brazilian natural sources that will be of useful protocol in vestigation and patient advice. METHODS. The survey was based on bottle labels of non

ENERGIA EÓLICA: uma fonte energética limpa e renovável em nosso meio

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GABRIEL MOREIRA

2011-07-01

Full Text Available Segundo o IBGE, no ano de 2010, a população brasileira teve um crescimento de 1,12%. Tendo em vista que tal crescimento necessita de uma grande demanda energética, precisa-se de fontes alternativas. Um bom meio supressor é a energia eólica. Meio de energia renovável e limpa. Segundo o documentário, Energia Eólica: a caçada pelos ventos, exibido pela TV Zabelê: “É uma dádiva da natureza o fato da nossa região ter esse grande potencial eólico [...].” No entanto, sua instalação necessita-se de grandes investimentos. Tendo em vista este grande crescimento populacional o projeto de pesquisa Energia Eólica: Uma fonte energética limpa e renovável em nosso meio, tem como objetivo a produção de um pequeno campo de energia eólica, em uma biblioteca na escola Oswaldo Cruz, na cidade de Sinop, Mato Grosso. Desta forma temos a possibilidade de reduzir 70% do consumo energético convencional, proporcionando uma economia financeira considerável. A implantação deste projeto está prevista para o segundo semestre de 2014.

O tesouro de conhecimentos de um bairro chamado maré: pessoas como fontes de informaçãoKnowlegde treasure in maré neighborhood: people as information sources

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Isa Maria Freire

2007-01-01

Full Text Available Apresenta o resultado de pesquisa, em nível exploratório, abordando as pessoas, cidadãos comuns, como fontes de informação para uma dada comunidade, na perspectiva da responsabilidade social do profissional bibliotecário. Discorre sobre o campo da pesquisa, o bairro Maré e suas comunidades. Utiliza a metodologia da pesquisa-ação para criar uma equipe de pesquisa e investigar a existência dessas pessoas e sua atuação como fontes de informação na comunidade. Procura dar visibilidade ao “invisível”, identificando onde e como funcionam a busca, recuperação e uso da informação nas pessoas detentoras de conhecimento, em uma dada comunidade. Utiliza a técnica de entrevista estruturada para o registro do conhecimento de uma dessas fontes, seus ofícios e talentos, revelando como adquiriu esse conhecimento e se o transmite para outras pessoas. Apresenta um formato para um sítio virtual contendo o Tesouro de conhecimentos de Comunidades da Maré.This work is a presentation of research results in an exploratory level as a graduation monograph. The aim of the work was to approach people common citizens as information fonts related to determined community in the perspective of the social responsibility of the librarian professional. The research environment dealt was the Maré neighborhood and its communities. The methodology used was research-action in order to create a research staff to investigate theexistence of these people and their actions as information fonts in the community. The work also aimed to make the “invisible” more visible, identifying where and how search, recall ad information use is done through people that gather knowledge in a referred community. Thus a structures interview technique was used to register the information fonts´ knowledge, their occupations and talents; making the revelation of how the knowledge was acquired as well as its transmission to other people. The interview was Transcripted and

Intertextos: sobre les fonts i els motius literaris de Lo desengany de Fontanella

OpenAIRE

Rossich i Estragó, Albert

2012-01-01

En aquest article s’estudien les fonts i els préstecs literaris que es poden detectar en «Lo Desengany», una notable peça dramàtica en dos actes escrita per Francesc Fontanella cap al 1650. Bon coneixedor de la literatura clàssica i de les iteratures més importants del seu temps (la castellana, la francesa i la italiana), Fontanella reflecteix en aquesta obra les seves lectures, i concretament les dels «Idil·lis» de Teòcrit, les «Metamorfosis» d’Ovidi, la «Farsàlia» de Lucà, «La Araucana» d’A...

The adductor magnus ''mini-hamstring'': MRI appearance and potential pitfalls

International Nuclear Information System (INIS)

Broski, Stephen M.; Murthy, Naveen S.; Collins, Mark S.; Krych, Aaron J.; Obey, Mitchel R.

2016-01-01

To examine the anatomic MRI characteristics of the adductor magnus mini hamstring (AMMH) and explore its involvement in cases of hamstring avulsion. An IRB-approved retrospective review of patients undergoing ''hamstring protocol'' MRI between March 2009 and June 2014 was performed. Two musculoskeletal radiologists recorded multiple AMMH anatomic characteristics and involvement in cases of hamstring avulsion. Seventy-six AMMHs were analyzed in 66 patients [35 females and 31 males, mean age 49.3 ± 15.2 years (range 17-81)]. Eleven percent of AMMHs were poorly visualized, 51 % visualized, and 37 % well visualized. Seven percent demonstrated round, 73 % ovoid, and 21 % flat/lenticular tendon morphologies. Most (88 %) demonstrated typical origins. Average cross-sectional area (CSA) was 22.4 ± 10.6 mm 2 (range 6-56), diameter was 7.2 ± 2.5 mm (range 2.9-15), medial distance from the semimembranosus tendon was 7.5 ± 2.5 mm (range 3-14), and tendon length was 6.8 ± 3.3 cm (range 1.2-14.1). There was no gender difference in AMMH anatomic measurements or correlation between age and CSA or diameter. Of 17 complete hamstring avulsion cases, the AMMH was intact in 13, partially torn in 3, and completely torn in 1. The AMMH is a constant finding with variable anatomic characteristics. It is visualized or well visualized by MRI in 88 % of cases and is a sizable tendon located in close proximity to the semimembranosus tendon. Because it is uncommonly completely torn (6 %) in cases of complete hamstring avulsion, radiologists should be aware of its presence and appearance to avoid diagnostic confusion. (orig.)

The adductor magnus ''mini-hamstring'': MRI appearance and potential pitfalls

Energy Technology Data Exchange (ETDEWEB)

Broski, Stephen M.; Murthy, Naveen S.; Collins, Mark S. [Department of Radiology, Mayo Clinic, Rochester, MN (United States); Krych, Aaron J. [Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN (United States); Obey, Mitchel R. [Mayo School of Graduate Medical Education, Rochester, MN (United States)

2016-02-15

To examine the anatomic MRI characteristics of the adductor magnus mini hamstring (AMMH) and explore its involvement in cases of hamstring avulsion. An IRB-approved retrospective review of patients undergoing ''hamstring protocol'' MRI between March 2009 and June 2014 was performed. Two musculoskeletal radiologists recorded multiple AMMH anatomic characteristics and involvement in cases of hamstring avulsion. Seventy-six AMMHs were analyzed in 66 patients [35 females and 31 males, mean age 49.3 ± 15.2 years (range 17-81)]. Eleven percent of AMMHs were poorly visualized, 51 % visualized, and 37 % well visualized. Seven percent demonstrated round, 73 % ovoid, and 21 % flat/lenticular tendon morphologies. Most (88 %) demonstrated typical origins. Average cross-sectional area (CSA) was 22.4 ± 10.6 mm{sup 2} (range 6-56), diameter was 7.2 ± 2.5 mm (range 2.9-15), medial distance from the semimembranosus tendon was 7.5 ± 2.5 mm (range 3-14), and tendon length was 6.8 ± 3.3 cm (range 1.2-14.1). There was no gender difference in AMMH anatomic measurements or correlation between age and CSA or diameter. Of 17 complete hamstring avulsion cases, the AMMH was intact in 13, partially torn in 3, and completely torn in 1. The AMMH is a constant finding with variable anatomic characteristics. It is visualized or well visualized by MRI in 88 % of cases and is a sizable tendon located in close proximity to the semimembranosus tendon. Because it is uncommonly completely torn (6 %) in cases of complete hamstring avulsion, radiologists should be aware of its presence and appearance to avoid diagnostic confusion. (orig.)

Fuzzy-Based Segmentation for Variable Font-Sized Text Extraction from Images/Videos

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Samabia Tehsin

2014-01-01

Full Text Available Textual information embedded in multimedia can provide a vital tool for indexing and retrieval. A lot of work is done in the field of text localization and detection because of its very fundamental importance. One of the biggest challenges of text detection is to deal with variation in font sizes and image resolution. This problem gets elevated due to the undersegmentation or oversegmentation of the regions in an image. The paper addresses this problem by proposing a solution using novel fuzzy-based method. This paper advocates postprocessing segmentation method that can solve the problem of variation in text sizes and image resolution. The methodology is tested on ICDAR 2011 Robust Reading Challenge dataset which amply proves the strength of the recommended method.

Método "fingerprinting" para identificação de fontes de sedimentos em bacia hidrográfica rural Fingerprinting method for identification of sediment sources in a rural watershed

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Jean P. G. Minella

2009-10-01

Full Text Available Este trabalho se refere a um estudo de identificação de fontes de sedimentos, realizado em uma bacia rural localizada em uma região montanhosa, no sul do Brasil. A bacia representa um ecossistema típico de exploração agrícola, realizado por pequenos agricultores que cultivam fumo em áreas marginais, com conseqüências severas aos recursos naturais. A identificação das fontes de sedimentos, baseada na análise dos sedimentos transportados em suspensão, possibilita avaliar as áreas que contribuem para a sua produção e fazer inferências sobre o potencial poluidor desses sedimentos. A metodologia utilizada foi a técnica "fingerprinting", através da qual foram exploradas as principais limitações da metodologia e as potencialidades na identificação das fontes de sedimentos. A classificação possibilitou a identificação da contribuição relativa das fontes, considerando-se preponderantes as lavouras e as estradas. Os resultados mostraram que a contribuição das duas fontes foi variável no tempo e a proporção relativa da contribuição de cada fonte variou de acordo com o manejo e a cobertura do solo que ocorreu nas lavouras e das obras de manutenção realizadas nas estradas. A contribuição das fontes mostrou que as lavouras e as estradas contribuíram com 64 e 36%, respectivamente.In this study, the fingerprinting method was used to identify sediment sources in a small rural watershed located in a mountainous region in southern Brazil. This watershed represents a typical agricultural ecosystem, in which smallhold farmers cultivate tobacco in marginal areas, with severe consequences to the natural resources. The identification of sediment sources, based on analysis of sediments transported in suspension, enables an evaluation of which areas are truly contributing to sediment production and, therefore, to make inferences about the polluting potential of these sediments. The study considered the main limitations of this

Novas citações de Chytridiomycota e Oomycota para o Parque Estadual das Fontes do Ipiranga (PEFI), SP, Brasil New records of Chytridiomycota and Oomycota from the "Parque Estadual das Fontes do Ipiranga (PEFI)", SP, Brazil

OpenAIRE

Carmen Lidia Amorim Pires-Zottarelli; Maristela Rocha

2007-01-01

Levantamento de fungos zoospóricos realizado em lagos artificiais do Parque Estadual das Fontes do Ipiranga (PEFI), situado na cidade de São Paulo, Estado de São Paulo, Brasil, resultou no isolamento de 41 táxons, sendo 36 identificados em nível específico. Vinte e três táxons pertencem ao Reino Fungi, filo Chytridiomycota, ordens Chytridiales, Monoblepharidales e Spizellomicetales e, 18 ao Reino Straminipila, filo Oomycota, ordens Saprolegniales e Peronosporales. Dentre os fungos isolados, 1...

Effect of morphine-induced antinociception is altered by AF64A-induced lesions on cholinergic neurons in rat nucleus raphe magnus.

Science.gov (United States)

Abe, Kenji; Ishida, Kota; Kato, Masatoshi; Shigenaga, Toshiro; Taguchi, Kyoji; Miyatake, Tadashi

2002-11-01

To examine the role of cholinergic neurons in the nucleus raphe magnus (NRM) in noxious heat stimulation and in the effects of morphine-induced antinociception by rats. After the cholinergic neuron selective toxin, AF64A, was microinjected into the NRM, we examined changes in the antinociceptive threshold and effects of morphine (5 mg/kg, ip) using the hot-plate (HP) and tail-flick (TF) tests. Systemic administration of morphine inhibited HP and TF responses in control rats. Microinjection of AF64A (2 nmol/site) into the NRM significantly decreased the threshold of HP response after 14 d, whereas the TF response was not affected. Morphine-induced antinociception was significantly attenuated in rats administered AF64A. Extracellular acetylcholine was attenuated after 14 d to below detectable levels in rats given AF64A. Naloxone (1 microg/site) microinjected into control rat NRM also antagonized the antinociceptive effect of systemic morphine. These findings suggest that cholinergic neuron activation in the NRM modulates the antinociceptive effect of morphine simultaneously with the opiate system.

[The relationships among raphe magnus nucleus, locus coeruleus and dorsal motor nucleus of vagus in the descending regulation of gastric motility].

Science.gov (United States)

Qiao, Hui; An, Shu-Cheng; Xu, Chang

2011-02-01

To explore the interrelationship among dorsal motor nucleus of the vagus (DMV), locus coeruleus (LC) and raphe magnus nucleus (NRM) in the mechanism of the descending regulation on gastric motility, which may constitute a parasympathetic local circuit, work as a neural center of gastric modulation in brainstem. Using nucleus location, electric stimulation and lesion, together with microinjection, and recording the inter-gastric pressure. (1) LC stimulation could inhibit the gastric motility significantly (P effect, while blocking the a receptor on DMV could reverse the effect. (2) NRM stimulation reduced the amplitude of gastric constriction (P effect, but blocking the 5-HT2A receptor on DMV depressed the gastric motility heavily (P effect of NRM stimulation, and microinjection of ritanserin into LC could likewise abolish it. (1) LC inhibit the gastric motility via a receptor in DMV, and meanwhile may excite it through 5-HT2A receptor in DMV, these two ways work together to keeping the gastric motility amplitude normally. (2) NRM inhibit the gastric motility via 5-HT2A receptor in LC.

Reversible inactivation and excitation of nucleus raphe magnus can modulate tail blood flow of male Wistar rats in response to hypothermia.

Science.gov (United States)

Malakouti, Seyed Mansour; Kourosh Arami, Masoomeh; Sarihi, Abdorahman; Hajizadeh, Sohrab; Behzadi, Gila; Shahidi, Siamak; Komaki, Alireza; Heshmatian, Behnam; Vahabian, Mehrangiz

2008-10-01

The nucleus raphe magnus (NRM) is involved in thermoregulatory processing. There is a correlation between changes in the firing rates of the cells in the NRM and the application of the peripheral thermal stimulus. we examined the effect of reversible inactivation and excitation of NRM on mechanisms involved in tail blood flow (TBF) regulation in hypothermia. Hypothermia was induced in Male Wistar rats and cannula was implanted above the NRM. To evaluate the effect of nucleus inactivation on TBF, the amount of TBF was measured by Laser Doppler in hypothermic rats, before and after lidocaine microinjection into NRM. TBF was also measured after glutamate microinjection to assess the effect of nucleus excitation in hypothermic rats. Results indicated that after dropping TBF by hypothermia, microinjection of lidocaine into NRM significantly decreased TBF from 54.43 +- 5.7 to 46.81 +- 3.4, whereas glutamate microinjection caused a significant increase from 44.194 +- 0.6 to 98 +- 10.0 CONCLUSION: These data suggest that NRM have thermoregulatory effect in response to hypothermia.

Solubilização de fostatos por microrganismos na presença de fontes de carbono

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G. N. Silva Filho

2000-06-01

Full Text Available O potencial de solubilização de fosfatos por bactérias e fungos cultivados em meio de cultura GEL (Glicose-Extrato de Levedura, suplementado com diferentes formas de fosfatos (cálcio, alumínio e ferro e fontes de carbono (celulose, amido, sacarose, glicose, frutose e xilose, foi avaliado em laboratório. O crescimento, o diâmetro da área solubilizada e a relação halo/colônia variaram conforme o tipo de microrganismo e a fonte de fósforo e de carbono. Dos 57 isolados utilizados, 56 formaram halo na presença de fosfato de cálcio e cinco apenas na presença de fosfato de alumínio e nenhum foi capaz de solubilizar fosfato de ferro. Contudo, seis isolados cresceram melhor no meio com fosfato de ferro em comparação com o meio testemunha. As maiores colônias e halos foram observados nos isolados de Rhizopus e Aspergillus, enquanto as maiores relações halo/colônia foram encontradas em Paecilomyces e Penicillium. Todos os isolados cresceram no meio GEL base (testemunha sem açúcar, mas a solubilização ocorreu apenas na presença de carbono adicionado ao meio, destacando-se xilose, glicose, frutose e sacarose.

Cativeiro de aves como fonte de Cryptococcus neoformans na cidade de Campo Grande, Mato Grosso do Sul, Brasil

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Filiú Wander Fernando de Oliveira

2002-01-01

Full Text Available Cryptococcus neoformans é a levedura capsulada causadora de criptococose em humanos e animais. A variedade neoformans, encontrada em diversas fontes ambientais, inclusive habitats de aves, é importante causa de mortalidade em indivíduos com AIDS em todo o Mundo. Contudo, ainda não há estudos sobre a sua ecologia na região Centro Oeste brasileira, onde há registro da ocorrência de casos humanos da micose. Para estudar fontes saprofíticas de C. neoformans, na cidade de Campo Grande, foram coletadas 20 amostras de excretas de aves em distintos ambientes. Suspensão das amostras em salina estéril foram semeadas em placas com meio ágar níger. Após 5 dias, colônias mucóides marrom-escuro foram subcultivadas para identificação através de provas morfofisiológicas, determinação da variedade e sorotipagem. C. neoformans var. neoformans sorotipo A foi isolado de 10 (50% das amostras, comprovando a ocorrência saprofítica de C. neoformans na cidade de Campo Grande, relacionada a habitat de aves em cativeiro.

Representações sociais, conhecimento científico e fontes de informação sobre aids

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Jean Carlos Natividade

2011-08-01

Full Text Available Investigaram-se, neste estudo, as relações entre a valorização simbólica atribuída a onze elementos descritores da representação social da aids, o nível de conhecimento científico sobre o HIV e aids, e as fontes de obtenção de informações sobre aids. Utilizou-se um questionário autoaplicável, de respostas fechadas, em 150 estudantes do ensino médio de uma escola pública. Identificaram-se relações significativas entre os elementos, que apontaram três fatores como caracterizadores da representação social da aids: responsabilidade diante do contágio; medo das consequências do contágio; descrição da aids. Foram encontradas relações significativas entre a valorização simbólica de seis elementos e quatro fontes de informação, que corroboraram a importância da comunicação extragrupo na constituição das representações sociais. Contudo, entre a valorização simbólica dos elementos e os níveis de conhecimento científico as relações não se mostraram significativas.

Uso de diferentes fontes de nitrogênio na cultura da soja

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Evelin Cristina Marcon

2017-05-01

Full Text Available O nitrogênio é um nutriente requerido em quantidade pela da soja, pois é responsável pelo crescimento da cultura e produção de novas células e tecidos. Com estudo teve-se por objetivo avaliar diferentes fontes de nitrogênio na soja e a sua influência sobre proteína bruta e rendimento de grãos. O experimento foi realizado durante o ciclo 2015/2016, na Fazenda Escola da Unoesc, São José do Cedro – SC. O delineamento experimental foi em blocos ao acaso (DBC, com 7 repetições. A unidade experimental constituiu-se de uma parcela. Os tratamentos compreenderam diferentes fontes de nitrogênio (sólido (Super N, líquido N 32 e a testemunha sem nitrogênio testadas na cultivar TMG 7062 IPRO. A aplicação de nitrogênio foi realizada em cobertura em duas etapas, metade da dose aplicada no estádio R1 (início do florescimento e a outra metade em R3 (formação da vagem, nas dosagens de 4 L ha-1 para o nitrogênio líquido 32% e 200 kg ha-1 de nitrogênio sólido 46%. Após a colheita, avaliou-se o teor de proteína bruta, o rendimento de grãos por área, a viabilidade econômica e a produtividade. Os dados foram submetidos à análise de variância pelo teste F e, quando significativos, foram submetidos à comparação de médias pelo teste de Tukey (P≤0,05. Para a cultura da soja a aplicação de nitrogênio líquido suplementar tem efeito positivo sobre o componente de rendimento da soja massa de mil grãos. A aplicação de nitrogênio sólido incrementou a produtividade de grãos. O uso de nitrogênio proporcionou maior rendimento econômico no ciclo 2015/2016 para a cultivar TMG 7062 IPRO em relação a testemunha.

METODOLOGIA DE IDENTIFICAÇÃO DE FONTE E COLETA DE INFORMAÇÃO: UMA PROPOSTA DE MODELO PARA CADEIA PRODUTIVA DO COURO, CALÇADOS E ARTEFATOS

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Alexander Willian Azevedo

2012-04-01

Full Text Available Este trabalho descreve a metodologia de análise de coleta de fontes de informação desenvolvida e implementada como ferramenta de apoio às atividades de inteligência do Sistema de Inteligência Competitiva da Cadeia Produtiva do Couro, Calçados e Artefatos (SIC. O objetivo do presente trabalho compreende em apresentar a descrição e os procedimentos para a aplicação de coletas das fontes de informação junto aos produtos de informações armazenados na ferramenta de apoio às atividades do SIC, visando à elaboração de um processo de busca de informação relevante dos atores globais da cadeia produtiva. Com base nas dinâmicas competitivas da Cadeia Produtiva do Couro, Calçados e Artefatos do Brasil, o principal resultado apresenta modelo de coleta de fontes de informação para um setor da cadeia produtiva, de acordo com as necessidades de inteligência identificadas que podem servir de base para as equipes de inteligência dos elos das cadeias produtivas do Brasil.

Ferramentas para mediação de fontes de informação: avaliação sobre seus usos em bibliotecas universitárias nacionais e internacionais

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Valéria Aparecida Moreira Novelli

Full Text Available A pesquisa relata o uso de ferramentas para mediação de fontes de informação por bibliotecas universitárias nacionais e internacionais. O estudo foi de caráter exploratório e utilizou análise de conteúdo, com abordagem quantitativa e qualitativa, de websites de 24 bibliotecas selecionadas dentre as melhores universidades internacionais e nacionais segundo indicadores da Webometrics Ranking of World's Universities, World University Rankings 2011-2012 e Índice Geral de Cursos. Objetivou-se investigar e identificar tendências de aplicações de ferramentas para as atividades de mediação dos processos de acesso, busca e aprendizagem do uso de fontes de informação em bibliotecas universitárias. Os resultados apontam um panorama geral de como as bibliotecas universitárias estão realizando o processo de mediação de fontes de informação, especialmente em relação às bases de dados bibliográficas. Observou-se variações na escala de implementação dessas ferramentas entre as bibliotecas internacionais e as bibliotecas nacionais, bem como o destaque de algumas delas. Conclui-se que diante da disponibilidade e acessibilidade cada vez mais crescente das fontes de informação, torna-se necessário que estas sejam utilizadas de forma eficaz e eficiente. Neste contexto cabe ao bibliotecário refletir, selecionar e implementar ações e ferramentas mais viáveis à realidade de cada biblioteca, considerando as características específicas das gerações e categorias de usuários, a diversidade de tecnologias ofertadas a estes usuários e também aos não usuários, autonomia, estímulo e facilidades para o acesso, busca e uso das fontes de informação.

Emissões veiculares em São Paulo: quantificação de fontes com modelos receptores e caracterização do material carbonáceo

OpenAIRE

Djacinto Aparecido Monteiro dos Santos Junior

2015-01-01

A significativa emissão veicular na Região Metropolitana de São Paulo (RMSP), com mais de 7 milhões de veículos e uma população da ordem de 18 milhões de habitantes, fazem desta uma área crítica do ponto de vista de níveis de poluentes atmosféricos. Neste trabalho foi obtida a determinação quantitativa de fontes de poluentes atmosféricos na RMSP, em particular do material carbonáceo na fração fina (PM2.5) do aerossol atmosférico, focando na componente veicular. Como parte do projeto FONTES, c...

Analise da influencia das fontes de carbono na patogenicidade do Moniliophthora perniciosa pathogenicity em Theobroma cacao

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Fatima Cerqueira Alvim

2009-01-01

Resumo: O fungo basidiomiceto hemibiotrófico Moniliophthora perniciosa, agente causal da doença vassoura-de-bruxa (VB) em Theobroma cacao, é o principal patógeno da lavoura cacaueira nas Américas e no Caribe. O presente trabalho apresentou como objetivo primordial identificar proteínas relacionadas com a patogenicidade deste fungo. No primeiro capítulo desta tese foi demonstrado o efeito de diferentes fontes de carbono sobre a morfologia e fisiologia do M, perniciosa. O fungo foi crescido em ...

Auditorias internas como fonte de informa??o para o conhecimento organizacional: estudo de caso em uma IFES

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Santos, Ludinaura Regina Souza dos

2012-01-01

O objetivo geral desta pesquisa foi o de analisar como os processos de auditoria interna v?m se transformando em fonte de informa??o para o conhecimento organizacional em uma IFES. O marco te?rico foi estruturado em quatro partes: (1) discuss?o sobre conhecimento organizacional, (2) teoria da cria??o do conhecimento organizacional, (3) o controle da administra??o p?blica no Brasil e (4) auditorias internas governamentais. Quanto ? caracteriza??o da pesquisa, apresentou um aspec...

The Roman Empire - The Third Century Crisis and Crisis Management

Science.gov (United States)

2012-04-04

December 2010. Hekster, Olivier, Gerda De Kleijn, and Danielle Slootjes. "Introduction." Impact of Empire. 7, (2006, June 1): 3-10. Koselleck...Crisis of the Third Century. Edited by Olivier Hekster, Gerda De Kleijn, and Danielle Slootjes. Vol. 7, Impact of EMpire. Boston: Brill Academic, 2012...1. Protagoras and John Nicols, Mapping the Crisis of the Third Century, ed. Olivier Hekster, Gerda De Kleijn, and Danielle Slootjes

Comparative study of the action of two different types of bleaching agents activated by two different types of irradiation fonts: xenon plasma arc lamp and 960 nm diode laser

International Nuclear Information System (INIS)

Walverde, Debora Ayala

2001-01-01

This in vitro study compares two different types of tooth bleaching agents stimulated with two different irradiation fonts. These fonts accelerate the action of the bleaching agents upon the enamel surface by heating up the materials. We used the xenon plasma arc lamp and a 960 nm fiber-coupled diode laser to irradiate the two materials containing 35% of hydrogen peroxide (Opus White and Opalescence extra). The color of the teeth was measured with a spectrophotometer using the CIELAB color system that gives the numeric values of L * a * b * . (author)

Compósitos a partir de materiais de fontes renováveis como alternativa para o desenvolvimento de produtos

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Eliana Paula Calegari

2016-04-01

Full Text Available A preocupação ambiental tem gerado interesse na pesquisa de novos materiais que estejam alinhados com os princípios da sustentabilidade. Entre esses materiais, atualmente, encontram-se os compósitos produzidos a partir de recursos de fontes renováveis. Este artigo apresenta os resultados de um estudo de caso acerca de produtos em que são empregados os referidos compósitos. Realizou-se uma pesquisa na rede mundial de computadores usando a ferramenta de buscas google sobre produtos fabricados com esses compósitos e comparou-se com produtos fabricados a partir de materiais usualmente utilizados na indústria, tais como polímeros, metais e cerâmicas. Constatou-se que os compósitos feitos a partir de fontes renováveis estão sendo, principalmente, aplicados em embalagens, na produção de ferramentas para jardinagem e vasos para plantas. Dessa forma, observou-se que os referidos compósitos podem substituir materiais comumente empregados na indústria atendendo aos requisitos funcionais e estéticos demandados na confecção desses produtos.

Font size matters--emotion and attention in cortical responses to written words.

Science.gov (United States)

Bayer, Mareike; Sommer, Werner; Schacht, Annekathrin

2012-01-01

For emotional pictures with fear-, disgust-, or sex-related contents, stimulus size has been shown to increase emotion effects in attention-related event-related potentials (ERPs), presumably reflecting the enhanced biological impact of larger emotion-inducing pictures. If this is true, size should not enhance emotion effects for written words with symbolic and acquired meaning. Here, we investigated ERP effects of font size for emotional and neutral words. While P1 and N1 amplitudes were not affected by emotion, the early posterior negativity started earlier and lasted longer for large relative to small words. These results suggest that emotion-driven facilitation of attention is not necessarily based on biological relevance, but might generalize to stimuli with arbitrary perceptual features. This finding points to the high relevance of written language in today's society as an important source of emotional meaning.

APLIKASI GENERATOR AKORD DENGAN MENGGUNAKAN FONT NOTANGKA.TTF DAN MENGADAPTASI LOGIKA DIRECT PRODUCT PADA NOTASI MUSIKAL ANGKA

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Eko Sediyono

2009-01-01

Full Text Available Information technology has brought a big influence in other fields of science, especially in music. One part of the musical arrangement process is chord defining. Direct product is one of vector multiplication types. Although its using in vector, but in music, it can be used for searching all possibilities of chord arrangement. This chord generator will use NotAngka2.ttf as a basic for input writing. Because of the unexistence of application for writing song in number notation with NotAngka2 font type and generating some chord arrangements for the song, so this topic become a focus for application designing and implementing. Abstract in Bahasa Indonesia: Paper ini membahas perancangan aplikasi pembangkit akord dari not angka yang ditulis dengan editor teks dengan font NotAngka2.ttf. Langkah-langkah yang digunakan untuk membangkitkan akord menggunakan teknik kompilasi. Tahap pertama adalah lexical analysis yang menyaring string dan membentuk token. Tahap ke dua adalah syntax analysis dimana input yang masuk diteliti struktur gramarnya. Selanjutnya dengan menggunakan logika perkalian langsung (direct product logic, maka dapat dibentuk akord yang sesuai dengan lagu masukannya. Aplikasi yang dibangun masih dalam tahap awal, sehingga inputnya masih terbatas pada lagu yang sangat sederhana, yang dibatasi pada patokan nada dasar, ketukan, jenis akord, serta tangga nada yang digunakan Kata kunci: akord, direct product, syntax analysis, lexical analysis

CARMELITA PINTO FONTES E O GINÁSIO DE APLICAÇÃO DA FACULDADE CATÓLICA DE FILOSOFIA DE SERGIPE (1961-1967

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Ane Rose de Jesus Santos Maciel

2016-03-01

Full Text Available Este artigo evidencia as ações pedagógicas da professora Carmelita Pinto Fontes no Ginásio de Aplicação da Faculdade Católica de Filosofia de Sergipe, entre os anos de 1961 a 1967. Esses estabelecimentos foram construídos como espaço de estágio para alunos concludentes dos cursos de Didática das Faculdades de Filosofia no Brasil, no entanto, tornaram-se um dos principais meios de divulgação de novas metodologias educacionais. Metodologicamente ancorado na pesquisa qualitativa, com apoio da História Cultural, da Educação e de Sergipe, além da História Oral, buscamos preencher lacunas deixadas pela historiografia da educação acerca de uma personagem importante para a configuração educacional que, através da educação, construiu sua trajetória intelectual em uma sociedade marcadamente masculina. Palavras-chave: Didática; Educação; Ginásio de Aplicação.   CARMELITA PINTO FONTES AND THE GYMNASIUM OF APPLICATION FROM THE CATHOLIC COLLEGE OF PHILOSOPHY OF SERGIPE (1961-1967 ABSTRACT This paper evidences the pedagogical actions from the professor Carmelita Pinto Fontes in the Gymnasium of Application from the Catholic College of Philosophy of Sergipe, through 1961 to 1967. These stablishment were built as a space of internship to senior students of the Didatic major from the Catholic College of Philosophy of Sergipe in Brazil; however, they became one of the main means for disseminating new educational technology. Methodologically anchored in qualitative research, with support of the Cultural History, Education and Sergipe, beyond of the Oral History, we seek to fill left gaps for the historiography of education about an important caracther to the educational configuration that built through education, her intellectual trajectory in a markedly male society. Keywords: Didatic; Education; Gymnasium of Application.   CARMELITA PINTO FONTES E O GIMNASIO DE APLICACIÓN DE LA FACULTAD CATÓLICA DE FILOSOFIA DE SERGIPE

Modelagem conceitual para identificação de áreas com potencial para geração de energia por fonte renovável

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Vivian Celestino

2016-12-01

Full Text Available O mundo enfrenta um desafio na busca de alternativas para atender a demanda de energia elétrica de forma sustentável e diminuir os efeitos dos Gases de Efeito Estufa. Uma maneira de minimizar estes efeitos e expandir o parque gerador é incrementar a produção com recurso a fontes renováveis. Mas para que, no momento de instalar um novo empreendimento, seja tomada uma decisão assertiva é necessário realizar a compilação de variáveis que sejam pertinentes ao tema e ao espaço geográfico. O objetivo deste artigo é apresentar uma modelagem conceitual por objetos (de acordo com o padrão OMT-G de forma a identificar áreas potenciais para gerar energia elétrica por fontes renováveis.

Extração de compostos bioativos de fontes vegetais utilizando solventes eutécticos

OpenAIRE

Almeida, Fátima Daniela Ferreira

2016-01-01

Na última década, tem-se intensificado o estudo da utilização de líquidos iónicos e solventes eutécticos em diversos processos de separação e reação, podendo constituir em muitas aplicações, uma alternativa mais favorável aos solventes orgânicos voláteis. Neste trabalho, pretende-se estudar a aplicação de alguns destes solventes na extração de compostos fenólicos existentes em verduras. Como planta modelo, escolheu-se a espécie Asparagus acutifolius L., uma planta comestível, fonte de comp...

FONTES PROTÉICAS DE ORIGEM VEGETAL EM DIETAS PARA JUVENIS DE CARPA HÚNGARA (Cyprinus carpio)

OpenAIRE

Giovani Taffarel Bergamin

2009-01-01

O objetivo deste trabalho foi avaliar a resposta de diferentes fontes protéicas de origem vegetal em substituição à farinha de carne suína da dieta, sobre o crescimento, rendimento e qualidade de carcaça, parâmetros sangüíneos e avaliação sensorial dos filés de juvenis de carpa húngara. Foram realizados dois experimentos, utilizando sistema de recirculação de água com 15 unidades experimentais (280L). No experimento 1, foram avaliadas cinco dietas experimentais. Uma dieta controle (FCS) co...

A ética de lado a lado: Fontes de notícias e jornalistas frente a frente

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Francisco José Karam

2010-12-01

Full Text Available O artigo confronta a ética das fontes de notícias com a deontologia dos jornalistas. Os protagonistas são colocados frente a frente para apurar as responsabilidades, os conflitos, direitos, equívocos e, inclusive, as promiscuidades. Além do diálogo entre autores, confere-se nos manuais de redação e ética dos principais jornais brasileiros - Folha de S. Paulo, O Estado de S. Paulo, O Globo e Zero Hora - como tratam essa relação.

Fontes Clássicas acerca do ceticismo de Arcesilaos de Pitanê Parte I: Agostinho de Hipona

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Roberto zarco

2014-07-01

Full Text Available Primeiro de uma série de artigos que pretende fazer um crítico e filosófico levantamento das fontes Clássicas acerca das filosofia e atividade filosófica de Arcesilaos de Pitanê, propõe demonstrar a inviabilidade de utilizar-se de Agostinho de Hipona, e sua obra Contra Academicus, no executar deste intuito. Para tanto, intenciona-se apresentar Contra Academicus enquanto livro inserido num contexto anti-estóico e cristão, típicos de um autor patrístico como Agostinho de Hipona.

Comparative growth of trichoderma strains in different nutritional sources, using bioscreen c automated system Crescimento de linhagens de Trichoderma em diferentes fontes nutricionais, empregando o sistema automatizado Bioscreen C.

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Bianca Caroline Rossi-Rodrigues

2009-06-01

Full Text Available Trichoderma is one of the fungi genera that produce important metabolites for industry. The growth of these organisms is a consequence of the nutritional sources used as also of the physical conditions employed to cultivate them. In this work, the automated Bioscreen C system was used to evaluate the influence of different nutritional sources on the growth of Trichoderma strains (T. hamatum, T. harzianum, T. viride, and T. longibrachiatum isolated from the soil in the Juréia-Itatins Ecological Station (JIES, São Paulo State - Brazil.The cultures were grown in liquid culture media containing different carbon- (2%; w/v and nitrogen (1%; w/v sources at 28ºC, pH 6.5, and agitated at 150 rpm for 72 h. The results showed, as expected, that glucose is superior to sucrose as a growth-stimulating carbon source in the Trichoderma strains studied, while yeast extract and tryptone were good growth-stimulating nitrogen sources in the cultivation of T. hamatum and T. harzianum.Trichoderma é um dos gêneros de fungos produtores de metabólitos de interesse industrial. O crescimento destes organismos é conseqüência das fontes nutricionais utilizadas, juntamente com as condições físicas de cultivo. Neste trabalho, o sistema automatizado Bioscreen C foi utilizado para avaliar a influência de diferentes fontes nutricionais sobre o crescimento de linhagens de Trichoderma (T. hamatum, T. harzianum, T. viride e T. longibrachiatum isoladas do solo da Estação Ecológica da Juréia-Itatins (JIES, São Paulo - Brasil. Os cultivos foram feitos em meios líquidos de cultura contendo diferentes fontes de carbono (2%; w / v e nitrogênio (1%; w / v a 28ºC, pH 6,5 e agitados a 150 rpm durante 72 h. Os resultados mostraram, conforme esperado, que a glicose é melhor do que a sacarose como fonte de carbono indutora de crescimento das linhagens de Trichoderma testadas, enquanto que, o extrato de leveduras e a triptona foram boas fontes de nitrogênio indutoras de

Contribuição ao estudo das fontes arteriais do encéfalo: arterjografia toracocervical mediante hiperpressão pulmonar

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Oswaldo Ricciardi-Cruz

1963-12-01

Full Text Available Êste trabalho versa sôbre a visibilização das fontes arteriais do encéfalo mediante injeção de substância radiopaca por via carotídea, graças ao bloqueio circulatório resultante do aumento da pressão intrapulmonar. São consideradas fontes arteriais encefálicas as carótidas comuns, as artérias vertebrais, o tronco braquiocefálico e os segmentos pré-vertebrais das artérias subclávias. A punção arterial, transcutânea, é feita em uma das carótidas comuns ou, excepcionalmente, no tronco braquiocefálico ou na artéria subclávia (segmento pré-vertebral. Para aumentar a pressão intrapulmonar, o pulmão do paciente é insuflado com oxigênio através da sonda traqueal munida de "cuff". Uma válvula, colocada entre a fonte de oxigênio e a sonda traqueal, permite controlar a pressão intrapulmonar, que não deve exceder a 75 mm Hg. A injeção de substância contrastante é feita em 2 a 3 segundos e deve ser iniciada assim que a pressão intrapulmonar atinge o valor de 75 mm Hg, prèviamente fixado na válvula. A compressão digital da carótida a jusante do ponto de inserção da agulha tem sido recurso complementar eficiente, proporcionando visibilização de tôdas as artérias da região de modo nítido e constante. São expostos os resultados de 46 exames realizados segundo a técnica descrita. Nenhum caso de acidente foi registrado. Embora haja ainda alguns pontos obscuros e pormenores de técnica que devem ser aperfeiçoados ou modificados, a simplicidade e a segurança do método permitem situá-lo em posição vantajosa entre seus congêneres.

A revista Saúde em Debate como fonte e objeto de estudo

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Daniela Carvalho Sophia

2013-11-01

Full Text Available A presente nota de pesquisa busca divulgar estudo sobre o Centro Brasileiro de Estudos da Saúde e o movimento de reforma sanitária desenvolvido no âmbito do Programa de História das Ciências e da Saúde Pública da Casa de Oswaldo Cruz. Atém-se à revista Saúde em Debate , periódico do Centro, devido à relevância que teve na área ao longo dos dez anos de publicação. A utilização da revista na pesquisa deu visibilidade a questões pertinentes à participação de seus membros na reforma sanitária. Enfatiza-se o fato de que a utilização do periódico como fonte e objeto de estudo para fomentar a produção de pesquisa na área da saúde merece investigação mais ampla.

Ação inseticida do extrato de Derris amazonica Killip para Cerotoma arcuatus Olivier (Coleoptera: Chrysomelidae Insecticide action of the extract of Derris amazonica Killip for Cerotoma arcuatus Olivier (Coleoptera: Chrysomelidae

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Márcio Rodrigo Alecio

2010-12-01

Full Text Available A abundância e o potencial inseticida de Derris amazonica e a necessidade de controle de Cerotoma arcuatus Olivier (Coleoptera: Chrysomelidae na cultura do feijão-caupi (Vigna unguiculata L. Walp estimularam a realização desta pesquisa, que objetivou avaliar a ação inseticida do extrato de D. amazonica a adultos de C. arcuatus em condições de laboratório. Os bioensaios testaram as vias de intoxicação por ingestão de folhas contaminadas, contato com superfície contaminada e aplicação tópica, com delineamento experimental inteiramente casualizado, com quatro repetições. Os valores de mortalidade e consumo foliar dos insetos foram submetidos à análise de regressão, sendo utilizada a análise de Probit para determinação das CL50, da DL50 e dos TL50. O extrato de D. amazonica, contendo 3,7% de rotenona, foi tóxico para adultos de C. arcuatus via ingestão de folhas contaminadas (CL50=15,14 µL do extrato.mL-1 de água, superfície contaminada (CL50=0,45 µL do extrato.cm-2 e aplicação tópica (DL50=1,44 µL do extrato.g-1 do inseto. Mortalidades de adultos de C. arcuatus superiores a 80% e os menores tempos letais médios foram obtidos na concentração de 5% (v v-1 do extrato em todos os bioensaios. O consumo foliar de adultos de C. arcuatus foi inversamente proporcional a concentração do extrato quando expostos por via de ingestão foliar ou aplicação tópica, sendo inclusive observada inibição da alimentação dos indivíduos. O extrato de D. amazonica é tóxico para C. arcuatus e inibe a alimentação dos insetos a partir da concentração de 1% (v v-1.The abundance and insecticidal potential of Derris amazonica in addition to need of controlling Cerotoma arcuatus for bean crop stimulated this research. The objective of this work was to evaluate insecticide action of the extract of D. amazonica to adults of C. arcuatus in laboratory conditions. The bioassays were carried out using three distend methodologies: leaf

Fontes de informação on line em Arquivologia: uma avaliação métrica

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Ely Francina T. de Oliveira

2009-04-01

Full Text Available O conhecimento é elemento fundamental na sobrevivência das espécies. A informação é necessária para formar o conhecimento que constrói a ciência. Esse fluxo beneficia os que produzem informação, bem como aqueles que a consomem. Não basta apenas pesquisar para se ter um novo domínio e conhecimento, é fundamental a publicação e validação pela comunidade científica. A ampla exposição das informações ao julgamento da comunidade é necessária para que a informação seja disseminada, exercendo assim sua principal função, que é de produzir conhecimento. A comunicação científica é importante indicador do desenvolvimento de uma área do conhecimento, pois possibilita a verificação e análise da comunidade na qual foi realizada. Por essa razão, o processo de atividade científica é dependente de um intrincado sistema de comunicação eficaz, que compreende canais formais e informais, que são utilizados tanto para comunicar os resultados obtidos como para informar os resultados alcançados por outros pesquisadores. Assim, toda pesquisa envolve atividades diversas de comunicação e disseminação. As informações publicadas variam de formatos, suporte e função. Podem ser veiculadas por meio impresso ou meio eletrônico, quer sejam artigos, livros, atas, conferências e revistas. O objetivo desta pesquisa é levantar as fontes de informação por meio eletrônico, através da Internet, os sites que têm revistas eletrônicas que publicam textos, artigos, teses, dissertações, projetos e trabalhos de pesquisa de estudiosos na área de Arquivologia. Considerando a informática como um fator fundamental no processo de recuperação da informação e a grande quantidade de informações abrangidas pela Internet, muitas vezes há dificuldade de localização de uma fonte específica, mesmo porque o meio eletrônico possui um espaço ilimitado de disponibilizar informação, não existindo limite para se pesquisar

DESENVOLVIMENTO DE UM MÉTODO MONTE CARLO NÃO PARAMÉTRICO PARA SIMULAR FONTES RADIATIVAS PLANARES EM MODELOS COMPUTACIONAIS DE EXPOSIÇÃO

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José Wilson Vieira

2014-07-01

Full Text Available Nos modelos computacionais de exposição (MCEs do DEN/UFPE, um fantoma (simulador antropomórfico é acoplado ao código Monte Carlo (MC EGSnrc para avaliações dosimétricas. Os modelos também precisam de um simulador da fonte emissora de radiação. Este trabalho apresenta um algoritmo MC não paramétrico de uma fonte radioativa planar, isotrópica por rotação, dependente da variável radial e da função de distribuição acumulada (FDA do problema, conhecida, mas não inversível. O algoritmo escolhe N valores da variável radial e calcula os correspondentes valores da função densidade de probabilidade (FDP e da FDA do problema. A suposição usada é que, se os valores da FDA fossem discretos, corresponderiam a frequências de raio (FR em intervalos consecutivos do domínio. Usando um gerador de números aleatórios (GNA uniformes normalizados em [0, 1, a técnica MC da inversão generalizada e interpolações lineares, foi possível obter amostras de r. Para comparações dosimétricas, foi reutilizado o MCE MSTA (Mash STAnding = fantoma MASH + EGSnrc + algoritmo baseado na FDP exponencial e montado o MSTA_FR. As implementações foram adicionadas ao software MonteCarlo, desenvolvido pelos autores e atualizado sempre que necessário. Os resultados apresentados e comentados estabelecem um novo algoritmo para uma fonte radioativa planar.

Utilização de fontes de gorduras em rações de vacas leiteiras

OpenAIRE

José Esler de Freitas Júnior

2008-01-01

O objetivo deste estudo foi avaliar a utilização de diferentes fontes de gordura em rações de vacas em lactação sobre o consumo e digestibilidade dos nutrientes, fermentação ruminal, produção e composição do leite, composição da fração protéica do leite, balanço de energia e de nitrogênio. Foram utilizadas 12 vacas da raça Holandesa, agrupadas em três quadrados latinos balanceados 4x4, alimentadas com as seguintes rações: 1) Controle; 2) Óleo de soja refinado; 3) Grão de soja in natura; e 4) ...

AVALIAÇÃO DE FONTES DE CARBONO PARA A PRODUÇÃO DE INIBIDOR DE CRESCIMENTO DE Aspergillus fumigatus USP2 por Corynebacterium sp.

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Gabrielle Fernanda Zimmer

2013-07-01

Full Text Available O aumento significativo na incidência de infecções fúngicas invasivas e a resistência natural de agentes etiológicos a antifúngicos existentes têm motivado a constante pesquisa por novos agentes antifúngicos nos ultimos anos. Neste sentido, foi selcionada uma cepa de Corynebacterium sp. com potencial antagonista frente à Aspergilus fumigatus USP2. A cepa foi cultivada em fase submersa e em fase sólida, avaliando-se a variação das fontes de glicose, sacarose e glicerol em presença de peptona, bem como o meio sintético Czapek. Os caldos de cultivo submerso foram utilizados para o ensaio de antagonismo microbiano com o fungo Aspergillus fumigatus USP2. Os resultados apontam que o cultivo em fase sólida utilizando glicose como fonte de carbono apresenta maior potencial inibitório da cepa de Corynebacterium sp. sobre o fungo Aspergillus fumigatus USP2.

Achado dunhas lousas con arte megalítico en Fonte Tourón Lalín, Pontevedra

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Cabrejas Domínguez, Elena

2009-12-01

Full Text Available In an archaeological context before a works execution took place (an electric half tension line, some engraved gravestones were found around the area of Fonte Touron, Council of Lalín. These gravestones have engravings representative of megalithism and nowadays they became boundary markers of the yards in which they are. The features of the engravings, besides the very shape of the stones and the context where other mounds are located, and above everything, the information provided by local neighbors that relate the stones of this mound to one set apart some years ago, points that they were part of a megalithic monument, and it is highly probable that they were the orthostats of a chamber.

No contexto dos traballos arqueolóxicos previos á execución dunha obra (unha liña eléctrica de media tensión, localizáronse unhas lousas con gravados na zona de Fonte Tourón, en Lalín. Trátase dunhas lousas que presentan uns gravados de estilo propio do megalitismo e que agora forman parte dos lindes das fincas nas que se atopan. As características destes gravados, sumado á propia forma das pedras, a un contexto onde se localizan outras mámoas e sobre todo, á información dos veciños que vinculan estas pedras cunha mámoa desfeita fai uns anos, apuntan a que formaron parte dun monumento megalítico, e que moi probablemente se trata dos esteos dunha cámara.

Aspectos econômicos do uso de fontes orgânicas de nutrientes associadas a sistemas de preparo do solo Economical aspects of organic nutrient sources associated with soil tillage systems

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Carla Maria Pandolfo

2008-09-01

Full Text Available A análise econômica é fundamental para a tomada de decisão no uso de fontes orgânicas de nutrientes. O objetivo do trabalho foi avaliar aspectos econômicos do uso de fontes orgânicas de nutrientes para auxiliar a tomada de decisão sobre o seu uso em diferentes condições de manejo do solo. Foi utilizado um experimento conduzido durante nove anos na Estação Experimental da Epagri de Campos Novos/SC. Os tratamentos consistiram da combinação de cinco sistemas de preparo (plantio direto, preparo reduzido, preparo convencional, preparo convencional com resíduos queimados e preparo convencional com resíduos retirados, combinados com quatro fontes de nutrientes (TES - testemunha, sem aplicação de nutrientes, AM - adubação mineral de acordo com a recomendação para cada cultura, EA - 5mg ha-1 de matéria úmida de cama de aves, ELB - 60m³ ha-1 de dejeto líquido de bovinos e; ELS - 40m³ ha-1 de dejeto líquido de suínos. Os atributos econômicos utilizados foram os custos variáveis (CV, a receita bruta (RB e o custo da correção da fertilidade com calcário, P e K (CC, após nove anos de aplicação das fontes de nutrientes. A interpretação para cada combinação de fonte de nutriente e sistema de preparo do solo foi feita por meio de figuras triangulares e a área das mesmas com intervalo de confiança a 90% de probabilidade. Concluiu-se que o desempenho econômico das fontes orgânicas de nutrientes foi dependente do sistema de preparo do solo, sendo que as fontes apresentaram melhor desempenho no sistema plantio direto. O esterco de aves e o esterco líquido de suínos foram as fontes que apresentaram melhor desempenho econômico. O esterco líquido de suínos e o esterco líquido de bovinos, mesmo apresentando áreas diferentes, foram as fontes que apresentaram menor variabilidade nos atributos econômicos avaliados, não havendo um atributo que se destaque dos demais. O custo da correção da fertilidade do solo com calc

Novas citações de Chytridiomycota e Oomycota para o Parque Estadual das Fontes do Ipiranga (PEFI, SP, Brasil New records of Chytridiomycota and Oomycota from the "Parque Estadual das Fontes do Ipiranga (PEFI", SP, Brazil

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Carmen Lidia Amorim Pires-Zottarelli

2007-03-01

Full Text Available Levantamento de fungos zoospóricos realizado em lagos artificiais do Parque Estadual das Fontes do Ipiranga (PEFI, situado na cidade de São Paulo, Estado de São Paulo, Brasil, resultou no isolamento de 41 táxons, sendo 36 identificados em nível específico. Vinte e três táxons pertencem ao Reino Fungi, filo Chytridiomycota, ordens Chytridiales, Monoblepharidales e Spizellomicetales e, 18 ao Reino Straminipila, filo Oomycota, ordens Saprolegniales e Peronosporales. Dentre os fungos isolados, 14 são mencionados pela primeira vez para o PEFI: Aphanomyces helicoides von Minden, Catenochytridium kevorkianii Sparrow, Catenochytridium sp., Chytriomyces appendiculatus Karling, C. aureus Karling, C. hyalinus Karling, C. spinosus Fay, Diplophlyctis asteroidea Dogma, D. complicata (Willoughby Dogma, Karlingia dubia Karling, Nowakowskiella hemisphaerospora Shanor, Saprolegnia australis Elliott, Septochytrium variabile Berdan e Truittella sp., os quais são descritos, comentados e ilustrados. O gênero Truitella é mencionado pela primeira vez para o Brasil.A survey of zoosporic fungi from artificial lakes of the Fontes do Ipiranga State Park, in the city of São Paulo, São Paulo State, Brazil, yielded the isolation of 41 taxa with 36 species. Twenty-three taxa belong to Chytridiales, Monoblepharidales and Spizellomycetales of the Phylum Chytridiomycota, Fungi Kingdom and 18 belong to Saprolegniales and Peronosporales, Phylum Oomycota, Straminipila Kingdom. Of these, 14 are first-time records for this State Park: Aphanomyces helicoides von Minden, Catenochytridium kevorkianii Sparrow, Catenochytridium sp., Chytriomyces appendiculatus Karling, C. aureus Karling, C. hyalinus Karling, C. spinosus Fay, Diplophlyctis asteroidea Dogma, D. complicata (Willoughby Dogma, Karlingia dubia Karling, Nowakowskiella hemisphaerospora Shanor, Saprolegnia australis Elliott, Septochytrium variabile Berdan and Truittella sp., which are described, commented and

PGRP-LB homolog acts as a negative modulator of immunity in maintaining the gut-microbe symbiosis of red palm weevil, Rhynchophorus ferrugineus Olivier.

Science.gov (United States)

Dawadi, Bishnu; Wang, Xinghong; Xiao, Rong; Muhammad, Abrar; Hou, Youming; Shi, Zhanghong

2018-09-01

Many notorious insect pests live in the symbiotic associations with gut microbiota. However, the mechanisms underlying how they host their gut microbiota are unknown. Most gut bacteria can release peptidoglycan (PGN) which is an important antigen to activate the immune response. Therefore, how to keep the appropriate gut immune intensity to host commensals while to efficiently remove enteropathogens is vital for insect health. This study is aimed at elucidating the roles of an amidase PGRP, Rf PGRP-LB, in maintaining the gut-microbe symbiosis of Red palm weevil (RPW), Rhynchophorus ferrugineus Olivier. RfPGRP-LB is a secreted protein containing a typical PGRP domain. The existence of five conservative amino acid residues, being required for amidase activity, showed that RfPGRP-LB is a catalytic protein. Expression analysis revealed abundance of RfPGRP-LB transcripts in gut was dramatically higher than those in other tissues. RfPGRP-LB could be significantly induced against the infection of Escherichia coli. In vitro assays revealed that rRfPGRP-LB impaired the growth of E. coli and agglutinated bacteria cells obviously, suggesting RfPGRP-LB is a pathogen recognition receptor and bactericidal molecule. RfPGRP-LB knockdown reduced the persistence of E. coli in gut and load of indigenous gut microbiota significantly. Furthermore, the community structure of indigenous gut microbiota was also intensively altered by RfPGRP-LB silence. Higher levels of the antimicrobial peptide, attacin, were detected in guts of RfPGRP-LB silenced larvae than controls. Collectively, RfPGRP-LB plays multiple roles in modulating the homeostasis of RPW gut microbiota not only by acting as a negative regulator of mucosal immunity through PGN degradation but also as a bactericidal effector to prevent overgrowth of commensals and persistence of noncommensals. Copyright © 2018 Elsevier Ltd. All rights reserved.

Fontes cotidianas de estresse entre mulheres portadoras de HIV Daily sources of stress among HIV-positive women

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Leticia Gaspar Tunala

2002-08-01

Full Text Available OBJETIVO: Categorizar e descrever as fontes de estresse cotidianas de mulheres portadoras do vírus da imunodeficiência humana (HIV. MÉTODOS: Foram realizadas entrevistas individuais, por meio de um questionário semi-estruturado, com uma amostra consecutiva de 150 mulheres portadoras do HIV, de julho a dezembro de 1997, no Centro de Referência e Tratamento de Doenças Sexualmente Transmissíveis e Aids (CRT DST/Aids (Secretaria de Estado da Saúde, SP. As variáveis investigadas foram: dados demográficos, estrutura familiar, percepção de risco, sexualidade, acesso ao sistema de saúde, adesão ao tratamento, uso de álcool e drogas, evento significativo e evento estressante, sendo este o foco de discussão do artigo. RESULTADOS: Apenas 14% dos eventos estressantes são diretamente resultados do tratamento ou do adoecimento. Os relatos das fontes de estresse foram distribuídos nos seguintes assuntos: familiares (17%; relacionamento com o parceiro (12%; filhos (14%; enfermidade (14%; relacionamento com outras pessoas (9%; problemas financeiros (8% e profissionais (7%; vivências de discriminação (7%; outros (4%; e não responderam (8%. CONCLUSÕES: As fontes de estresse apresentam principalmente um conteúdo afetivo-relacional, derivadas muitas vezes do estigma associado ao HIV e, na maioria das vezes, a temas comuns a todas as mulheres. Os profissionais de saúde deveriam oferecer cuidado integral às mulheres portadoras do HIV.OBJECTIVE: To categorize and describe the daily sources of stress encountered by HIV-infected women. METHODS: Using a semi-structured questionnaire, 150 interviews were conducted among HIV-infected women who attended the Reference and Treatment Center for Sexually Transmitted Diseases and Aids in the state of São Paulo, Brazil, between July and December 1997. The studied variables were: demographics, family structure, risk perception, sexuality, access to health system, treatment compliance, drug use, and

Sur l'olivier

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Mohammed Khadda

2015-10-01

Full Text Available *** Mohammed Khadda (Mostaganem, le 14 mars 1930 – Alger, le 4 mai 1991. Autodidacte, « peintre du Signe », sculpteur, graveur et théoricien de l'art. Employé, dès 1944, dans l'imprimerie de « L'Aïn Sefra » où il réalisait, entre autres, des maquettes. En 1947, il s'inscrit à un cours de dessin par correspondance et réalise ses premières aquarelles. Ainsi commence la grande aventure de l'expression plastique qui mène Mohammed Khadda de Mostaganem à Alger (où, au Musée des Beaux Arts, il rega...

Novas citações de Chytridiomycota e Oomycota para o Parque Estadual das Fontes do Ipiranga (PEFI), SP, Brasil

OpenAIRE

Pires-Zottarelli,Carmen Lidia Amorim; Rocha,Maristela

2007-01-01

Levantamento de fungos zoospóricos realizado em lagos artificiais do Parque Estadual das Fontes do Ipiranga (PEFI), situado na cidade de São Paulo, Estado de São Paulo, Brasil, resultou no isolamento de 41 táxons, sendo 36 identificados em nível específico. Vinte e três táxons pertencem ao Reino Fungi, filo Chytridiomycota, ordens Chytridiales, Monoblepharidales e Spizellomicetales e, 18 ao Reino Straminipila, filo Oomycota, ordens Saprolegniales e Peronosporales. Dentre os fungos isolados, 1...

A fonte ionizante do disco de acreção no núcleo de NGC1097

Science.gov (United States)

Silva, R. N.; Storchi-Bergmann, T.

2003-08-01

Observações em raios-X revelam o "coração" dos núcleos ativos de galáxias, pois esse tipo de radiação provém das suas regiões mais internas, próximas ao buraco negro central. Neste trabalho apresentamos observações em raios-X da região central da galáxia NGC1097, que hospeda um buraco negro supermassivo e um disco de acreção cuja emissão vem sendo observada há dez anos através da linha de emissão Ha larga (10000 km/s) e de duplo pico. As observações em raios-X - que foram obtidas com o Telescópio Chandra - foram combinadas com observações no ultravioleta obtidas com o Telescópio Espacial Hubble e são usadas para estudar as características da fonte central que ioniza o disco de acreção. A distribuição espectral de energia é comparada com a predita por modelos, em particular o de uma estrutura "ADAF" ("advection dominated accretion flow") na parte interna do disco. Tal estrutura produz um espectro de emissão de linhas estreitas tipo LINER, como observado em NGC1097 e em rádio-galáxias que apresentam linhas de Balmer largas de duplo pico. Apresentamos também uma comparação entre outros LINERs com linhas de emissão largas de duplo pico, disponíveis na literatura ou nos arquivos do Chandra e do Telescópio Espacial Hubble e discutimos as correspondentes implicações para modelos da fonte central.

Fontes de nitrogênio e caule decomposto de Mauritia flexuosa na nodulação e crescimento de Enterolobium contortsiliquum

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Waldeídes Castro Sousa

2013-10-01

Full Text Available Avaliaram-se fontes de nitrogênio (N e proporções de caule decomposto de buritizeiro (Mauritia flexuosa L.f. na nodulação, crescimento e nos índices biométricos das mudas de tamboril [Enterolobium contortsiliquum (Vell. Morong] na região sudoeste do Piauí. O delineamento experimental foi inteiramente casualizado em esquema fatorial 3x5, com cinco repetições. Foram testadas três fontes de N (N-mineral, N do substrato e inoculação com a estirpe Bradyrhizobium elkanii BR 4406 e cinco proporções de caule decomposto de buritizeiro:solo (v/v, %: 0: 100; 10: 90; 20: 80; 40: 60; 80: 20. A emergência das plântulas foi avaliada diariamente até o décimo terceiro dia após a semeadura. Aos 80 dias, as mudas foram coletadas para as determinações da nodulação, do crescimento e dos índices biométricos. As mudas que foram cultivadas com os substratos contendo caule decomposto de buritizeiro apresentaram maior crescimento e nodulação, em relação às que foram cultivadas no substrato 0: 100 (caule decomposto de buritizeiro: solo. A obtenção de máximo Índice de Qualidade de Dickson foi com 48: 52 (caule decomposto de buritizeiro: solo, sendo, portanto, esta a proporção recomendada para a produção de mudas. Com relação às fontes de nitrogênio, a estirpe BR 4406 não foi eficiente em promover ganhos no teor de nitrogênio e matéria seca da parte aérea, em relação ao tratamento com N-mineral. As populações nativas de bactérias diazotróficas presentes no substrato que não recebeu N-mineral e nem inoculação foram capazes de nodular eficientemente o tamboril, uma vez que promoveram acréscimos no teor de nitrogênio e matéria seca da parte aérea equivalentes ao tratamento adubado com N-mineral.

Fontes de energia em suplementos múltiplos para novilhos em pastejo durante o período das águas Energy sources in multiple supplements for steers on pasture during rainy season

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Michele Lopes do Nascimento

2010-04-01

Full Text Available Avaliou-se a influência do fornecimento de fontes de energia amiláceas e fibrosas em suplementos múltiplos sobre o desempenho e as características nutricionais de novilhos mestiços Holandês × Zebu em terminação em pastagem de Brachiaria decumbens Stapf. no período das águas. A área experimental consistiu de cinco piquetes de 2,0 ha, com disponibilidade média de MS de 5.853,0 kg/ha. Utilizaram-se 24 novilhos mestiços castrados, com aproximadamente 27 meses de idade e peso vivo inicial de 377,03 ± 7,28 kg. A cada animal, destinou-se casualmente um dos suplementos: mistura mineral à vontade, grão de sorgo ou grão de milho como fontes amiláceas de energia; e casca de soja ou farelo de trigo como fontes fibrosas. Às fontes de energia foram adicionados: mistura mineral, farelo de algodão e ureia para comporem suplementos com 33% de PB, com base na matéria seca, fornecidos na proporção de 1,0 kg/animal/dia. Nos animais sob suplementação com fontes energéticas, o ganho médio diário foi 33,4% maior. Os novilhos que consumiram suplemento com grão de sorgo foram os que apresentaram maior ganho de peso médio diário e maiores consumos nutrientes do pasto em comparação aos que consumiram grão de milho. A digestibilidade aparente total da fibra em detergente neutro corrigida para cinzas e proteína não foi afetada pela suplementação, independentemente da fonte de energia. O teor de nitrogênio ureico urinário foi menor nos animais sem suplementação. Suplementos múltiplos fornecidos em quantidade equivalente a 0,3% do peso vivo promovem ganho de peso superior ao obtido com mistura mineral em novilhos mestiços na fase de terminação durante o período das águas. Suplementos formulados com fontes fibrosas ou fontes amiláceas proporcionam desempenho produtivo semelhante.This study evaluated the supply of starch and fibrous energy in multiple supllements on the performance and nutritional characteristics of finishing

Effects of electroacupuncture on orphanin FQ immunoreactivity and preproorphanin FQ mRNA in nucleus of raphe magnus in the neuropathic pain rats.

Science.gov (United States)

Ma, Fei; Xie, Hong; Dong, Zhi-Qiang; Wang, Yan-Qing; Wu, Gen-Cheng

2004-07-15

Orphanin FQ (OFQ) is an endogenous ligand for opioid receptor-like-1 (ORL1) receptor. Previous studies have shown that both OFQ immunoreactivity and preproorphanin FQ (ppOFQ) mRNA expression could be observed in the brain regions involved in pain modulation, e.g., nucleus of raphe magnus (NRM), dorsal raphe nucleus (DRN), and ventrolateral periaqueductal gray (vlPAG). It was reported that electroacupuncture (EA) has analgesic effect on neuropathic pain, and the analgesic effect was mediated by the endogenous opioid peptides. In the present study, we investigated the effects of EA on the changes of OFQ in the neuropathic pain rats. In the sciatic nerve chronic constriction injury (CCI) model, we investigated the changes of ppOFQ mRNA and OFQ immunoreactivity in NRM after EA by in situ hybridization (ISH) and immunohistochemistry methods, respectively. Then, the ppOFQ mRNA-positive and OFQ immunoreactive cells were counted under a computerized image analysis system. The results showed that expression of ppOFQ mRNA decreased and OFQ immunoreactivity increased after EA treatment in the neuropathic pain rats. These results indicated that EA modulated OFQ synthesis and OFQ peptide level in NRM of the neuropathic pain rats. Copyright 2004 Elsevier Inc.

The Potential of Digital Tools in Art Lessons at Junior School Level to Improve Artistic Ability Using Tamazight Fonts

OpenAIRE

Aber Salem Aboalgasm; Rupert Ward

2014-01-01

The aim of this research is to explore how pupils in art classes can use creative digital art tools to redesign Tamazight fonts, in order to develop children’s artistic creativity, enable them to learn about a new culture, and to help the teacher assess the creativity of pupils in the art class. It can also help students to improve their talents in drawing. The study could relate to research in Libya among the Amazigh people (better known as Berber) and possibly the development of Tamazight f...

Description and key to the fifth-instars of some Cicadas (Hemiptera: Cicadidae) associated with coffee plants in Brazil.

Science.gov (United States)

Maccagnan, D H B; Martinelli, N M

2011-01-01

Fifth-instars of the cicada species Dorisiana drewseni (Stål), Dorisiana viridis (Olivier), Fidicina mannifera (Fabricius), Fidicinoides pronoe (Walker) and Carineta fasciculata (Germar) are described and illustrated. Moreover, a key to the nymphs of these species along with Quesada gigas (Olivier) is also provided.

Means-source on the international pages of O Estado de S. Paulo Meios-fonte nas pginas de internacional de O Estado de S. Paulo

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Angela Zamin

2012-01-01

Full Text Available On journalistic production, the objectivation of each event involves a conflict of perspectives between journalists and sources through the present definition that surrounds us. These combats are established in the discursive level, among social controls and pressures for what to say and how to say it, being conformed within an information network built up from priorities on which informational efforts in each media are focused. This article approaches the use of other medias (newspapers, radio and TV stations by the newspaper O Estado de S. Paulo as sources for the signification of the diplomatic crisis between Colombia and Ecuador, in the period from March 2008 to August 2009. The article is guided by a debate on the implications of the means-source used by the journalistic production about international occurrences. For the analysis the corpus is based on 307 pieces of the International section.Na produo jornalstica, a objetivao de cada acontecimento envolve um conflito de perspectivas entre jornalistas e fontes pela definio do presente que nos cerca. Esses combates se estabelecem no discursivo, em meio a controles e presses sociais pelo que dizer e como dizer, sendo conformados no interior de uma rede informativa estabelecida a partir de prioridades sobre as quais se concentram os esforos informativos de cada meio. Este artigo aborda o uso de outros meios (jornais, rdios, TVs pelo jornal O Estado de S. Paulo como fontes na significao da crise diplomtica entre Colmbia e Equador, no perodo de maro de 2008 a agosto de 2009. Orienta-se por um debate acerca das implicaes do emprego de meios-fonte na produo jornalstica que versa sobre ocorrncias internacionais. Para a anlise serve de base um corpus de 307 peas da editoria de Internacional.

Vibração: fonte de incômodo à populaçao e de danos às edificações no meio urbano

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Luiz Antonio Brito

Full Text Available A energia vibratória gerada pelo tráfego de veículos leves e pesados e pelas composições ferroviárias são uma fonte de poluição ambiental pouco estudada no Brasil. A forma mais eficaz de atenuação da energia vibratória é o aumento da distância entre o receptor e a fonte, o que normalmente é obtido com os recuos definidos pelas leis de zoneamento urbano e pela faixa de domínio, tanto de ferrovias como de rodovias. O adensamento das áreas urbanas, já perceptível nas cidades de médio porte, gerado principalmente pela especulação imobiliária, vem aproximando as edificações das principais fontes de vibração no meio urbano. O efeito da energia vibratória nas edificações varia de acordo com o tipo de estrutura e fundação, sua altura e o tipo de solo. As construções que possuem estrutura em aço ou concreto armado tendem a receber melhor os efeitos da vibração (DIN 4150-3,1999. Em contrapartida, as construções antigas e patrimônios históricos, edificados com materiais menos resistentes, em algumas situações mal conservadas, podem sofrer desde trincas estéticas até danos estruturais irreversíveis quando expostas a elevados níveis de vibração. O objetivo deste trabalho é avaliar a incomodidade e os danos estruturais gerados pela energia vibratória induzida pelo tráfego rodoviário e ferroviário em edificações. Os resultados obtidos indicam que os limites de integridade estrutural são atendidos, mas não os de incomodidade.

Biodisponibilidade de cobre de diferentes fontes para coelhos

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Cavalcante S.G.

2002-01-01

Full Text Available Utilizaram-se 140 coelhos das raças Nova Zelândia Branco e Califórnia, com 60 dias de idade, de ambos os sexos, distribuídos em 14 tratamentos experimentais, com o objetivo de determinar a biodisponibilidade de cobre (Cu de três fontes inorgânicas, óxido de cobre (tratamento OC, sulfato de cobre (tratamento SC e carbonato de cobre (tratamento CC e uma orgânica, quelato de cobre (tratamento QC, usadas nas concentrações de 0, 20, 40, 80 e 160 ppm para a curva padrão. O maior consumo de ração ocorreu nos tratamentos 80SC, 80OC, 40SC, 160SC, 0C, 20SC, 40CC e 40OC e os menores resultados nos tratamentos 160QC, 40QC, 80CC, 160CC e 160OC (R²= 0,1913. Para ganho de peso o melhor tratamento foi 80SC e o pior 80CC (R²=0,2358. Para conversão alimentar, os tratamentos 80CC, 80SC, 0C, 20SC e 80QC apresentaram nessa ordem os maiores valores e o menor valor foi em 40QC. Para o cobre no fígado, o tratamento 160CC apresentou o maior valor, e 80SC e 40SC os menores. Não houve diferenças com relação ao sexo, mas os animais Nova Zelândia Branco apresentaram maior deposição de cobre. Pelos resultados chegou-se à equação de regressão: Y Cu= 1,37 + 3,83 x1 + 2,77 x2 + 2,83 x3 + 2,84 x4 + 2,84 x5 (R² = 0,3288.

A time for dogma, a time for the Bible, a time for condoms: Building a Catholic theology of prevention in the face of public health policies at Casa Fonte Colombo in Porto Alegre, Brazil

Science.gov (United States)

Seffner, Fernando; Garcia, Jonathan; Muñoz-Laboy, Miguel; Parker, Richard

2011-01-01

The Casa Fonte Colombo (CFC) is a religious organisation that assists people living with HIV/AIDS (PLWHA). The funding for its activities comes from public sources such as the Brazilian National STD/AIDS Program as well as the Catholic Church. Capuchin (Franciscan) priests run the CFC, and it has an extensive group of volunteers made up mostly of women. Between 2006 and 2009, we observed daily life at the Casa Fonte Colombo and interviewed priests, volunteers, employees, service providers, and clients. We also attended meetings, group sessions, and celebrations. Everyday actions carried out by the CFC reveal the efforts to resolve the tension between the position of the Catholic Church and the Brazilian state in the politics of AIDS. These efforts affirm that the Casa Fonte Colombo presents itself as a space where the position of the Catholic Church, as much as the politics of public health, are re-worked, giving way to a progressive act of Catholic prevention and assistance for AIDS, that we call “theology of prevention.” PMID:21834734

Mean Curvature, Threshold Dynamics, and Phase Field Theory on Finite Graphs

Science.gov (United States)

2013-06-28

3380. [DEL12a] Xavier Desquesnes, Abderrahim Elmoataz, and Olivier Lézoray, Eikonal equation adapta- tion on weighted graphs: Fast geometric diffusion...Abderrahim Elmoataz, Olivier Lézoray, and Vinh-Thong Ta, Efficient algorithms for image and high dimensional data processing using eikonal equation on

A multi-purpose technology

CERN Multimedia

Alizée Dauvergne

2010-01-01

Today, printed circuit boards – PCBs - are part and parcel of our everyday lives. We find them everywhere: in our computers, mobile phones, food processors, cars, radios, remote controls, etc. Although the associated technology no longer holds any secrets for us, its uses don't end here. Olivier Pizzirusso and his team are using the techniques involved in PCB manufacture to build the particle detectors of the future.   Rui de Oliveira (left) and Olivier Pizzirusso (right) in the workshop of Building 102. For the past five years Olivier Pizzirusso has worked at CERN as a technician specialising in the design and production of new-generation gas detectors known as Micro Pattern Gas Detectors (MPGDs). "Our workshop is in Building 102, where the standard PCBs used in the Laboratory are made by CERN's industrial service contractors", explains Olivier. The workshop houses drills, UV exposure units, presses and various other equipment needed for the manufacture of PC...

Novas Fontes, Novas Versões: Contribuições do Acervo da Comissão Nacional da Verdade

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Alessandra Sá Mello Costa

2017-03-01

Full Text Available Na área de estudos organizacionais, o interesse dos pesquisadores em utilizar fontes e acervos históricos em suas pesquisas cresce a cada dia (Rowlinson, Hassard, & Decker, 2014; Yates, 2014. Como forma de enriquecer e aprofundar a discussão sobre esse movimento, a presente pesquisa tem por objetivo refletir sobre possíveis contribuições das fontes reunidas, sistematizadas e produzidas pela Comissão Nacional da Verdade (CNV. Instituída para investigar as graves violações dos direitos humanos cometidas no regime da ditadura civil-militar brasileira, a CNV (a partir de seu acervo oferece aos pesquisadores das organizações novas versões dos fatos históricos, o que torna possível não só problematizar e rever versões históricas oficiais hegemônicas, mas também investigar fenômenos organizacionais sob outras perspectivas. Assim, após a descrição do processo de constituição e de composição do seu acervo documental, foram elencadas quatro avenidas de pesquisas iniciais: (a sobre o apoio e a participação da sociedade civil na constituição e manutenção do governo civil-militar brasileiro; (b sobre a formação de redes de agentes sociais envolvidos no processo de criação e de trabalho da CNV; (c sobre as relações de trabalho durante o período, como a atuação dos sindicatos ou as práticas de recursos humanos sob um regime autoritário; e (d sobre o tema da história e memória das empresas.

Substituição parcial do milho por fontes energéticas para bovinos de corte em pastejo

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Adriano Borges Cardoso

2013-09-01

Full Text Available O objetivo deste trabalho foi avaliar o efeito da substituição parcial do milho por fontes energéticas alternativas, em suplementos concentrados para bovinos de corte mantidos em pasto de Urochloa brizantha cultivar Marandu, durante o período das águas, no consumo e na digestibilidade aparente total dos alimentos. Foram utilizados cinco bovinos Nelore com peso médio corporal inicial de 367,8±4,31 kg. Utilizou-se o delineamento experimental quadrado latino 5x5, com cinco animais e cinco tratamentos. Foram avaliados: suplementos concentrados isoproteicos, com 30% de proteína bruta, formulados à base de grãos de milho, de milheto e de sorgo, e casca de soja; e um suplemento mineral (controle. Não foram observadas diferenças significativas no consumo de matéria seca (MS total e de matéria orgânica (MO entre os animais que receberam suplementação mineral e os que receberam suplementação concentrada; no entanto, estes últimos apresentaram menor (12,28% consumo de MS de pasto. A suplementação concentrada aumentou o coeficiente de digestibilidade aparente total da MS, da MO, da proteína bruta e dos carboidratos não fibrosos que não foram influenciados pelas fontes de energia. Os grãos de milheto e de sorgo e a casca de soja podem ser utilizados em substituição parcial ao milho, na formulação de suplementos concentrados, sem prejudicar o consumo e a digestibilidade dos nutrientes da dieta.

Perfil lipídico tecidual de ratos alimentados com diferentes fontes lipídicas Tissue lipid profile of rats fed with different lipid sources

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Martha Elisa Ferreira de Almeida

2009-02-01

Full Text Available OBJETIVO:Determinar se fontes lipídicas com diferentes razões de ácidos graxos insaturados e saturados (PUFA+MUFA/SFA na dieta altera o perfil lipídico tecidual, a concentração de lipídios (mg/g dos tecidos hepáticos e mesentérico e a digestibilidade lipídica. MÉTODOS: Foi realizada cromatografia gasosa para determinar o perfil de ácidos graxos nos tecidos hepático e adiposo de ratos alimentados com diferentes fontes lipídicas. O coeficiente de digestibilidade foi determinado a partir da relação entre a quantidade de lipídios consumidos e a quantidade fecal excretada. RESULTADOS:Diferentes fontes lipídicas (óleo de soja, manteiga, margarina e gorduras de porco e de peixe não alteraram o coeficiente de digestibilidade e o peso hepático, mas alteraram a deposição de lipídios em todos os tecidos adiposos estudados. Não foi possível fazer a correlação direta entre o perfil dietário dos ácidos graxos não essenciais e sua deposição nos tecidos estudados, visto que a lipogênese de novo impede a identificação dos ácidos graxos dietários. CONCLUSÃO:Não foi constatada uma relação direta entre o perfil dietário dos ácidos graxos e sua deposição nos tecidos estudados, exceto para os ácidos graxos trans e linoléico (C18:2 que não são sintetizados no rato. Esses ácidos graxos apresentaram uma concentração tecidual diretamente proporcional àquela das fontes dietárias. Quanto à razão (PUFA+MUFA/SFA, encontrada no tecido hepático dos diferentes grupos, observa-se que esta foi diretamente proporcional aos valores apresentados pelas fontes lipídicas dietárias. Entretanto, essa associação não foi observada nos tecidos adiposos analisados.OBJECTIVE:To determine if lipid sources with different unsaturated to saturated fatty acid ratios, (PUFA+MUFA/SFA in the diet alter the lipid profile of tissues, the lipid concentration (mg/g of the hepatic and mesenteric tissues and the lipid digestibility. METHODS

Uso da alga Lithothamnium calcareum como fonte alternativa de cálcio nas rações de frangos de corte Use of algae Lithothamnium calcareum as alternative source of calcium in diets for broiler chickens

OpenAIRE

André Carreira Carlos; Nilva Kazue Sakomura; Sandra Regina Freitas Pinheiro; Fernando Marcelo Micai Toledano; Renato Giacometti; José Walter da Silva Júnior

2011-01-01

Objetivou-se, com este trabalho, avaliar o uso da alga Lithothamnium calcareum (Pallas) Areschoug nas rações para frangos de corte de 1 a 21 e 21 a 42 dias de idade, em substituição à fonte de cálcio tradicional (calcário calcítico). Para isso, foram utilizados 300 pintos machos, da linhagem Cobb®, que receberam rações contendo o calcário calcítico e a alga Lithothamnium calcareum (colhida de inteira e na forma de areia biodentrítica) como fontes de cálcio. O delineamento experimental utiliza...

Vortex-Induced Vibrations of a Riser with Design Variations

Science.gov (United States)

2016-06-19

0.283s (right plot) periods This gyroscopic effect is real, stable and has a preferred direction in much the same way that the Magnus effect does. The... Magnus effect is normally associated with the generation of a cross-flow force on a spinning cylinder in a larger fluid flow field. The Magnus force...for public release; distribution is unlimited 8 period (Figure 7) vibrates in a “figure 8” and thus does not evolve a Magnus effect . The opposing

Electrolytic lesion of the nucleus raphe magnus reduced the antinociceptive effects of bilateral morphine microinjected into the nucleus cuneiformis in rats.

Science.gov (United States)

Haghparast, Abbas; Ordikhani-Seyedlar, Mehdi; Ziaei, Maryam

2008-06-27

Several lines of investigation show that the rostral ventromedial medulla is a critical relay for midbrain regions, including the nucleus cuneiformis (CnF), which control nociception at the spinal cord. There is some evidence that local stimulation or morphine administration into the CnF produces the effective analgesia through the nucleus raphe magnus (NRM). The present study tries to determine the effect of morphine-induced analgesia following microinjection into the CnF in the absence of NRM. Seven days after the cannulae implantation, morphine was microinjected bilaterally into the CnF at the doses of 0.25, 1, 2.5, 5, 7.5 and 10 microg/0.3 microl saline per side. The morphine-induced antinociceptive effect measured by tail-flick test at 30, 60, 90 and 120 min after microinjection. The results showed that bilateral microinjection of morphine into the CnF dose-dependently causes increase in tail-flick latency (TFL). The 50% effective dose of morphine was determined and microinjected into the CnF (2.5 microg/0.3 microl saline per side) in rats after NRM electrolytic lesion (1 mA, 30 s). Lesion of the NRM significantly decreased TFLs, 30 (Peffects through the opioid receptors in the CnF. It is also appeared that morphine-induced antinociception decreases following the NRM lesion but it seems that there are some other descending pain modulatory pathways that activate in the absence of NRM.

Panorama de les fonts audiovisuals internacionals en televisió : contingut, gestió i drets

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López de Solís, Iris

2014-12-01

Full Text Available Les cadenes generalistes espanyoles (nacionals i autonòmiques disposen de diferents fonts audiovisuals per informar dels temes internacionals, com ara agències, consorcis de notícies i corresponsalies. En aquest article, a partir de les dades facilitades per diferents cadenes, s'aborda la cobertura, l'ús i la gestió d'aquestes fonts, així com també els seus drets d'ús i arxivament, i s'analitza la història i les eines en línia de les agències més emprades. Finalment, es descriu la tasca diària del departament d'Eurovision de TVE, al qual fa uns mesos s'han incorporat documentalistes que, a més de tractar documentalment el material audiovisual, duen a terme tasques d'edició i de producció.Las cadenas generalistas españolas (nacionales y autonómicas cuentan con diferentes fuentes audiovisuales para informar de los temas internacionales, como agencias, consorcios de noticias y corresponsalías. En este artículo, a partir de los datos facilitados por diferentes cadenas, se aborda la cobertura, el uso y la gestión de dichas fuentes, así como sus derechos de uso y archivado, y se analiza la historia y las herramientas en línea de las agencias más empleadas. Finalmente se describe la labor diaria del departamento de Eurovision de TVE, al que hace unos meses se han incorporado documentalistas que, además de tratar documentalmente el material audiovisual, realizan labores de edición y producción.At both national and regional levels, Spain’s main public service television channels rely upon a number of independent producers of audiovisual content to deliver news on international affairs, including news agencies and consortia and correspondent networks. Using the data provided by different channels, this paper examines the coverage, use and management of these sources as well as the regulations determining their use and storage. It also analyzes the history of the most prominent agencies and the online toolkits they offer

Growth of Bauhinia forficata Link, Curcuma zedoaria Roscoe and Phaseolus vulgaris L. cell suspension cultures with carbon sources Crescimento de cultura de células em suspensão de Bauhinia forficata Link, Curcuma zedoaria Roscoe e Phaseolus vulgaris L. em fontes de carbono

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Marcia Ometto Mello

2001-09-01

Full Text Available Cell suspension cultures of Bauhinia forficata Link, Curcuma zedoaria Roscoe and Phaseolus vulgaris L. were used to test plant ability to utilize an alternative to sucrose as carbon source and energy for growth. Glycerol, sorbitol and galactose were the alternative carbon sources tested. Cell suspension cultures established on liquid medium containing sucrose were transferred to culture medium supplemented with sucrose or glycerol, or sorbitol, or galactose as the sole carbon source. Fresh and dry weight increasing and protein content showed marked differences among the different carbon sources used. Sucrose was the best carbon source for all the three plant species tested. Galactose and glycerol promoted slow or no growth of the three studied species. Sucrose in liquid medium promoted initiation of meristemoid formation. Sorbitol, which was ineffective on promoting significant growth, was the only alternative carbon source tested that also promoted this effect.Culturas de células em suspensão de Bauhinia forficata Link, Curcuma zedoaria Roscoe e Phaseolus vulgaris L. foram usadas para avaliar a eficiência de fontes alternativas de carbono e energia. Glicerol, sorbitol e galactose foram as fontes alternativas estudadas. As culturas de células estabelecidas em meio líquido contendo sacarose foram transferidas para meios de cultura suplementados com sacarose ou glicerol ou sorbitol ou galactose. A fonte de carbono afetou distintamente os ganhos de matéria fresca, matéria seca e o acúmulo de proteína. A sacarose foi a melhor fonte de carbono para as três espécies estudadas. Galactose e glicerol promoveram pequeno crescimento das três espécies estudadas. A sacarose utilizada como fonte de carbono no meio líquido, promoveu o início de organização celular conhecido como a formação de meristemóides. Sorbitol, que não promoveu crescimento significativo, foi a única fonte alternativa de carbono testada que também promoveu este

Sobre a origem e dispersão das leishmanioses cutânea e mucosa com base em fontes históricas pré e pós-colombianas

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Altamirano-Enciso Alfredo J.

2003-01-01

Full Text Available A partir de quatro fontes do século XVI, são relatadas algumas ocorrências sugestivas de leishmaniose tegumentar americana (LTA no território andino. A reinterpretação dessas fontes permite enfocar o velho tema da origem da espundia ou leishmaniose de forma mucosa (LM. O artigo reforça a hipótese de que a LM tenha se originado na área amazônica ocidental em tempos arqueológicos por intermédio de migrações humanas, depois ascendido à selva alta e, posteriormente, às terras quentes interandinas, pelos limites da Bolívia e do Peru com o Brasil. As migrações dos mitmaq ou mitimaes contribuíram para sua intensificação durante o império inca. Tais fatos se desenvolvem no contexto histórico e social da queda do império inca e da instalação da colônia espanhola.

Fontes nitrogenadas com diferentes taxas de degradação ruminal na alimentação de ovinos

OpenAIRE

Clayton Quirino Mendes

2010-01-01

Foram realizados três experimentos com o objetivo de determinar os efeitos do aumento da PDR da ração por meio do uso de fontes nitrogenadas com diferentes taxas de degradação ruminal. Exp. 1: 28 cordeiros da raça Santa Inês foram utilizados para avaliação do desempenho, características da carcaça e da carne e parâmetros sanguíneos. Além disso, foi avaliada a capacidade do SRNS em predizer o CMS e o GMD dos animais. O farelo de soja foi substituído pela uréia nos teores de 0,7%; 1,4% e 2,1% d...

Produção e qualidade de frutos de laranjeira 'Pêra' em função de fontes e doses de boro Yield and quality of 'Pera' sweet orange in effect of boron source and doses

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Isabela Rodrigues Bologna

2006-08-01

Full Text Available O presente trabalho objetivou estudar o efeito de fontes e doses de boro aplicadas no solo na produção e qualidade dos frutos de laranjeira 'Pêra'. Os tratamentos constituíram-se de cinco fontes de boro (ulexita-pó, colemanita, ulexita-granulada, termofosfato magnesiano com boro e ácido bórico e quatro doses (1; 2; 3 e 4 kg ha-1, em delineamento inteiramente casualizado e esquema fatorial 5 x 4, em quatro repetições. A produção da cultura não sofreu influência das fontes e doses de boro, 11 meses após a aplicação dos tratamentos. Nos atributos tecnológicos, não foram observados efeitos significativos nos parâmetros: ratio, teor de sólidos solúveis e ºBrix. Houve redução do rendimento de suco com o aumento da dose de boro aplicada para todas as fontes testadas. O maior e o menor diâmetro de fruto foram obtidos, respectivamente, com o uso da fonte mais solúvel (ácido bórico e menos solúvel (colemanita, não havendo influência dos tratamentos na espessura de casca.The aim of this research was to evaluate effects of boron sources and doses in the yield and quality of 'Pera' sweet orange. The treatments were five boron sources (ulexite-powder, colemanite, ulexite-grain, magnesian thermo phosphate with boron and acid boric and four boron doses (1, 2, 3 and 4 kg ha-1. Experimental design was completely randomized in factorial 5 x 4, with four replications. Eleven months after treatments application crop yield was not influenced by boron source and doses. Fruit technological attributes as ratio, soluble solid contents and ºBrix were not different. Orange juice production decreased with boron dose increasing for all evaluated sources. The largest fruit diameter was found under the most soluble source (boric acid while the smallest fruit diameter was obtained under the less soluble source (colemanite. Treatment influence was not observed to fruit skin thickness.

International Relations as Group Interaction: The Case of Russia and NATO

Science.gov (United States)

2016-05-01

Olivier Kempf, L’OTAN Au XXIe Siècle: La Transformation D’un Héritage, Histoire et Société (Perpignan: Artège, 2010), 277 4 Founding Act on Mutual...Press, 1976. Kempf, Olivier. L’OTAN Au XXIe Siècle: La Transformation D’un Héritage. Histoire et Société. Perpignan: Artège, 2010. Khong, Yuen Foong

2000 days of SMOS at the Barcelona Expert Centre: a tribute to the work of Jordi Font

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Antonio Turiel

2016-09-01

Full Text Available Soil Moisture and Ocean Salinity (SMOS is the first satellite mission capable of measuring sea surface salinity and soil moisture from space. Its novel instrument (the L-band radiometer MIRAS has required the development of new algorithms to process SMOS data, a challenging task due to many processing issues and the difficulties inherent in a new technology. In the wake of SMOS, a new community of users has grown, requesting new products and applications, and extending the interest in this novel brand of satellite services. This paper reviews the role played by the Barcelona Expert Centre under the direction of Jordi Font, SMOS co-principal investigator. The main scientific activities and achievements and the future directions are discussed, highlighting the importance of the oceanographic applications of the mission.

Fonte eólica de energia: aspectos de inserção, tecnologia e competitividade

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Elbia Melo

2013-01-01

Full Text Available A energia eólica tem experimentado um exponencial e virtuoso crescimento no Brasil. De 2009 a 2012, nos seis leilões em que a fonte eólica participou, foram contratados 7 GW em novos projetos representando mais de 25 bilhões de reais em investimentos. A trajetória da fonte eólica que deverá chegar em 2017 com 8,5 GW de capacidade instalada teve início com o Programa de Incentivo às Fontes Alternativas de Energia Elétrica (Proinfa. Lançado em 2004 e baseado em um estruturado modelo de financiamento e políticas regionais, o Proinfa foi responsável pela contratação de 1.422,9 MW, por meio de preços subsidiados. O ano 2012 foi marcado pela comemoração da inserção de 2 GW de potência instalada de energia eólica no sistema elétrico nacional, de forma que o Brasil encerra o ano de 2012 com 2,5 GW de potência eólica instalada e 2% de participação na matriz elétrica brasileira. Porém, também foi um ano de grandes desafios e dificuldades para a fonte eólica, o que culminou em uma relativa desaceleração para esta indústria. Inclusive com a realização de apenas um leilão que teve a menor demanda contratada de todos os leilões de energia nova já realizados. A reduzida contratação também resultou em preços muito baixos, uma vez que a competição foi muito acirrada, a oferta foi 28 vezes superior a demanda, de forma que o certame foi encerrado com preços médios de R$ 90,00 por MWh. A indústria eólica está passando por uma fase crucial de consolidação, apresentando estágio ainda imaturo, a existência de onze fabricantes, cada um com capacidade média de produção de 500 MW por ano de equipamentos, não necessariamente determina uma oferta de 5.000 MW de máquinas. É certo que o ano 2012, sob o aspecto da contratação, não foi um período muito animador, visto que a economia cresceu menos do que o esperado e para 2013 espera-se a retomada do crescimento do PIB nacional, em torno de 4%, e a retomada nos n

Interaction of ultrasound with vortices in type-II superconductors

International Nuclear Information System (INIS)

Sonin, E.B.

1996-01-01

The theory of ultrasound in the mixed state of type-II superconductors is suggested which takes into account the Magnus force on vortices, the anti-Magnus force on ions, and diamagnetism of the mixed state. The acoustic Faraday effect (rotation of polarization of the transverse ultrasonic wave propagating along vortices) is linear in the Magnus force in any regime of the flux flow for wavelengths now used in the ultrasound experiments. Therefore, in contrast to previous predictions, the Faraday effect should be looked for only in clean superconductors with a strong Magnus force. copyright 1996 The American Physical Society

Implantação de Íons de Nitrogênio em PMMA Através de uma Fonte Kaufman

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Cristian Padilha Fontoura

2017-08-01

Full Text Available A modificação de superfícies é uma técnica que a engenharia tem feito uso há muito tempo, para melhoria de propriedades em materiais. O poli metil-metacrilato (PMMA, por ser um material de constante uso em aplicações biomédicas, exige que sua superfície apresente características favoráveis à adesão celular e compatibilidade com tecidos. Os polímeros, de uma maneira geral, quando submetidos a tratamentos em plasma, tendem a formar grupos funcionais que alteram propriedades ópticas, químicas, físicas e de biocompatibilidade. Em função disso, este trabalho propôs realizar a funcionalização de substratos de PMMA através da fonte de íons Kaufman. Amostras de PMMA foram submetidas ao feixe de íons de nitrogênio gerado pela fonte Kaufman, em diversas condições. A caracterização foi feita pelas técnicas de GD-OES, FTIR e EDS. Ficou comprovado, através do perfil de concentração de nitrogênio obtido por GD-OES, que a quantidade de nitrogênio na superfície aumenta gradativamente com o tempo de implantação e a potência. Outro indício foi a análise em FTIR, que mostrou presença de aminas nas faixas entre 1654-655 cm-1 e 3300-3700 cm-1. A análise em EDS, porém, comprovou também a presença de ferro e cromo, agentes citotóxicos, que precisam ser eliminados para a continuidade dos trabalhos.

Fontes para a história dos 50 anos do Ministério da Saúde

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Lima Ana Luce Girão Soares de

2003-01-01

Full Text Available Este trabalho e um levantamento das fontes sobre a história do Ministério da Saúde existentes no acervo da Casa de Oswaldo Cruz/Fiocruz. Utilizamos como marcos cronológicos os cinqüenta anos anteriores à lei 1.920, de 25 de julho de 1953, que separou a saúde e a educação em pastas autônomas. Nesse período foram lançadas as bases que fundamentariam as políticas públicas de saúde e informariam a estrutura do futuro ministério. Privilegiou-se aqui também a ação dos sanitaristas e intelectuais que figuraram como atores importantes no processo de construção ideológica não só das estruturas de Estado, como também das próprias políticas.

Design and Analysis of A Spin-Stabilized Projectile Experimental Apparatus

Science.gov (United States)

Siegel, Noah; Rodebaugh, Gregory; Elkins, Christopher; van Poppel, Bret; Benson, Michael; Cremins, Michael; Lachance, Austin; Ortega, Raymond; Vanderyacht, Douglas

2017-11-01

Spinning objects experience an effect termed `The Magnus Moment' due to an uneven pressure distribution based on rotation within a crossflow. Unlike the Magnus force, which is often small for spin-stabilized projectiles, the Magnus moment can have a strong detrimental effect on aerodynamic flight stability. Simulations often fail to accurately predict the Magnus moment in the subsonic flight regime. In an effort to characterize the conditions that cause the Magnus moment, researchers in this work employed Magnetic Resonance Velocimetry (MRV) techniques to measure three dimensional, three component, sub-millimeter resolution fluid velocity fields around a scaled model of a spinning projectile in flight. The team designed, built, and tested using a novel water channel apparatus that was fully MRI-compliant - water-tight and non-ferrous - and capable of spinning a projectile at a constant rotational speed. A supporting numerical simulation effort informed the design process of the scaled projectile to thicken the hydrodynamic boundary layer near the outer surface of the projectile. Preliminary testing produced two-dimensional and three-dimensional velocity data and revealed an asymmetric boundary layer around the projectile, which is indicative of the Magnus effect.

A current view of copybooks (the font in the Czech Republic and in selected countries of Europe

Directory of Open Access Journals (Sweden)

Bartošová Iva Košek

2016-01-01

Full Text Available The purpose of the present research of mixed design, i.e. qualitative and quantitative nature is to draw a comparison of the most widely used copybooks – textbooks in the Czech Republic based on adapted evaluation criteria originally presented by [1] - content, graphic design, format and adequacy of writing tasks and range etc. and subsequently focus the research on an analysis of similar workbooks – copybooks (including the used font in selected European countries. The proposed research project is a follow-up of a research project realized in 2014 and designed to identify the publishing houses having the greatest numbers of sales of textbooks for 1st -3rd grades of primary schools as well as the reasons for which teachers choose the materials from a particular publishing house in the Czech Republic.

Resíduo de Curtumes como Fonte de Nitrogênio para Trigo e Arroz em Sucessão

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Lívia Cristina Coelho

2015-10-01

Full Text Available RESUMO O processo de estabilização necessário para o curtimento das peles, na indústria coureira, gera grande quantidade de resíduo sólido colagênico com elevado potencial poluidor. Esse resíduo contém elevado teor de nitrogênio, o que confere ao resíduo potencial para uso agrícola. Para avaliar a viabilidade da aplicação de rejeito da indústria do couro, como fonte nitrogenada para as culturas do trigo e arroz de sequeiro, foi implantado um experimento em casa de vegetação com cinco doses de N provenientes do colágeno (0, 225, 450, 675 e 900 mg kg-1 e três tratamentos adicionais (controle, ureia e ureia reposta no segundo cultivo. A aplicação de até 675 mg kg-1 de N via colágeno propiciou produção de matéria seca de plantas de trigo similar à aplicação de N mineral e maior massa de grãos de trigo em todas as doses estudadas (14 a 41 % superiores à aplicação de N mineral. Como fonte residual, a aplicação do colágeno proporcionou níveis de N no solo suficientes para obter massa de grãos de arroz nas doses mais elevadas (acima de 675 mg kg-1de N via colágeno, sem que os teores de Cr foliares sejam considerados tóxicos. O colágeno pode ser boa alternativa para a implantação da cultura do arroz após a colheita de trigo, sem prejuízos de produtividade e necessidade de reposição de fertilizantes nitrogenados, se aplicado na dose 675 mg kg-1 de N fornecido via colágeno.

FONTES DE ADUBOS ORGÂNICOS NA PRODUÇÃO DE MUDAS DE PITAIA

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Felipe Pereira Dal'col

2016-10-01

Full Text Available A pitaia (Hylocereus undatus é uma frutífera exótica que vem se popularizando perante os produtores brasileiros. Com isso, verificou-se a utilização de duas fontes de esterco animal, como tratamentos compostos de solo de barranco + esterco de curral (2:1, solo de barranco  + esterco suíno curtido (2:1 e solo de barranco, onde todos foram enriquecidos com a dose de 2Kg m-3 de superfosfato simples. O experimento foi realizado no Setor de Viveiricultura do Ifes- Campus Santa Teresa. Utilizou-se o delineamento inteiramente casualizado (DIC, com 5 repetições. Transcorridos 75 dias do plantio as mudas foram avaliadas considerando-se a parte aérea e o sistema radicular. Observou-se efeito significativo nos tratamentos aplicados para a produção de mudas de pitaia. Os tratamentos contendo esterco bovino e suíno se apresentaram superiores com relação ao número de brotos, altura de plantas e matéria seca de brotos, o que os indica  proporcionar o melhor desenvolvimento de mudas de pitaia, em virtude dos acréscimos nutricionais e nas características físicas do substrato.

Fontes nitrogenadas e uso de Sacharomyces cerevisiae em dietas à base de cana-de-açúcar para novilhos: consumo, digestibilidade, balanço nitrogenado e parâmetros ruminais

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Pereira Elzânia Sales

2001-01-01

Full Text Available O objetivo do presente estudo foi avaliar os efeitos das fontes nitrogenadas e o uso de Sacharomyces cerevisiae em dietas à base de cana-de-açúcar sobre os consumos e as digestibilidades aparentes totais e parciais de matéria seca (MS, matéria orgânica (MO, proteína bruta (PB, extrato etéreo (EE, carboidratos totais (CHO, fibra em detergente neutro (FDN e carboidratos não-estruturais (CNE, o balanço nitrogenado e os parâmetros ruminais. Foram utilizados quatro novilhos Holandês-Zebu, fistulados no rúmen e abomaso, alimentados com quatro rações à base de cana-de-açúcar, constituídas de duas fontes nitrogenadas (uréia ou cama de frango combinadas com dois níveis de Sacharomyces cerevisiae (0 e 10 g/dia. Utilizou-se delineamento em quadrado latino 4 x 4. A fibra em detergente neutro indigestível (FDNi foi utilizada como indicador, para determinar as digestibilidades aparentes totais e parciais. Os consumos de MS, MO, EE, CT e CNE não foram influenciados pelas fontes nitrogenadas e pela utilização de Sacharomyces cerevisiae. Os consumos de PB e FDN foram maiores para as dietas suplementadas com cama de frango. Os coeficientes de digestibilidades totais de PB e EE foram maiores para as dietas constituídas de uréia. As digestibilidades aparentes totais de MS, MO, CT e FDN não foram influenciadas pelas fontes nitrogenadas e pela utilização de Sacharomyces cerevisiae. O pH do líquido ruminal decresceu linearmente para as dietas suplementadas com uréia e apresentou comportamento quadrático, quando estas dietas foram combinadas com Sacharomyces cerevisiae. As concentrações de amônia no líquido ruminal apresentaram comportamento quadrático, estimando-se valores máximos de 16,90; 26,12; 18,48; e 14,40 mg/100 mL para os tratamentos constituídos de cana-de-açúcar e uréia; cana-de-açúcar, uréia e Sacharomyces cerevisiae; cana-de-açúcar e cama de frango; e cana-de-açúcar, cama de frango e Sacharomyces cerevisiae

Relationships between mountain pine and climate in the French Pyrenees (Font-Romeu studied using the radiodensitometrical method

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Rolland, Cristian

1994-12-01

Full Text Available A radiodensitometrical study was carried out on 46 Pinus uncinata (Ramond in Font-Romeu (French Pyrenees. Correlation functions with monthly climatical data were calculated using separately the ring-widths, the earlywood and the latewood densities. The Mountain Pine shows narrow rings (1.5 mm and a high sensitivity to climate (M.S. = 0.221, but it does not seem to suffer from drought despite the dryness of the climate (788 mm rainfall per year. This species is more sensitive to temperature than to precipitation, since temperature governs latewood formation. A hot spring and a mild autumn with maximum temperatures above threshold levels will extend the growing period. A warm autumn also increases the latewood density, whereas cold nights during the previous year's autumn are unfavourable to growth because they may affect the cambium and bud initiations.

[es] Se ha llevado a cabo un trabajo densitométrico sobre 46 Pinus uncinata (Ramond en Font-Romeu (Cerdaña francesa. Las funciones de correlación con el clima han sido calculadas sucesivamente con el espesor de los anillos de crecimiento, la densidad de la madera temprana y de la madera tardía. Esta especie produce anillos de crecimiento delgados (1.5 mm y presenta una elevada sensibilidad con el clima (S.M. = 0.221 pero no parece afectada por la falta de lluvia aunque el clima es más xérico (788 mm/ año. La madera tardía parece muy sensible a las temperaturas. Una primavera cálida ejerce un efecto favorable y un otoño suave con temperaturas máximas superiores a límites críticos permite continuar su desarollo. De la misma manera un otoño caliente aumenta la densidad de la madera tardía aunque las noches frías durante el otoño precedente son desfavorables para el crecimiento porque pueden afectar al Inicio de las yemas y del cambium.
[fr] Une étude radiodensitométrique de46 Pinus uncinata (Ramond a été réalisée à Font-Romeu (Pyrénées Françaises. Les

Latest Performance Results from the FONT5 Intra-train Beam Position and Angle Feedback System at ATF2

CERN Document Server

Christian, G B; Bett, D R; Blaskovic Kraljevic, N; Burrows, P N; Davis, M R; Gerbershagen, A; Perry, C; Constance, B; Resta-Lopez, J

2012-01-01

A prototype Interaction Point beam-based feedback system for future electron-positron colliders, such as the International Linear Collider, has been designed and tested on the extraction line of the KEK Accelerator Test Facility (ATF). The FONT5 intra-train feedback system aims to stabilize the beam orbit by correcting both the position and angle jitter in the vertical plane on bunch-tobunch time scales, providing micron-level stability at the entrance to the ATF2 final-focus system. The system comprises three stripline beam position monitors (BPMs) and two stripline kickers, custom low-latency analogue front-end BPM processors, a custom FPGA-based digital processing board with fast ADCs, and custom kickerdrive amplifiers. The latest results from beam tests at ATF2 will be presented, including the system latency and correction performance.

Influência das fontes e granulometria do calcário calcítico sobre a densidade, resistência e composição mineral da tíbia de poedeiras comerciais - DOI: 10.4025/actascianimsci.v27i1.1238 Influence of limestone source and particle size on the density, strength and mineral content of laying hens' tibia bone - DOI: 10.4025/actascianimsci.v27i1.1238

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Maria Auxiliadora Andrade

2005-03-01

Full Text Available O objetivo desse trabalho foi verificar a influência de diferentes fontes de calcário calcítico com diferentes faixas granulométricas (fino, médio, pedrisco sobre a densidade, a resistência e composição mineral de tíbias de poedeiras comerciais em três idades. Foram utilizadas 192 poedeiras da linhagem Isa Babcock B 300, com 33 semanas de idade, distribuídas em um delineamento em blocos casualizados com 6 tratamentos, 2 blocos e 4 repetições de 8 aves cada. O experimento durou 38 semanas a foi dividido em 9 ciclos de 28 dias. Os tratamentos consistiram em 1 = calcário fino Fonte 1; 2 = médio Fonte 1; 3 = pedrisco Fonte 1; 4 = calcário fino Fonte 2; 5 = pedrisco Fonte 2; 6 = calcário pedrisco Fonte 3. Não foi observado efeito negativo nas características ósseas avaliadas para as diferentes fontes e granulometria de calcário testadas, porém nota-se maior força de resistência óssea quando utilizado calcário pedriscoThis experiment was carried out to evaluate the effects of different sources of limestone with different particle sizes (fine, medium and large on bone quality of laying hens. 192 Isa Babcock B 300 hens - 33 weeks of age were allotted in a randomized block design with a total of 6 treatments, 2 blocks and 4 replicates of 8 hens each. The feeding trial lasted 38 weeks. The six experimental diets were: 1 - fine limestone Source 1; 2 - medium limestone Source 1; 3 - larger limestone Source 1; 4 - fine limestone Source 2; 5 - larger limestone Source 2; 6 - larger limestone Source 3. No negative effects on layer bone characteristics were observed, but better strength bone when larger particles were used

O trabalho de tradutor como fonte para constituição de base de dados

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Bibiana Teixeira de Almeida

2005-12-01

Full Text Available O presente artigo visa a relatar o trabalho desenvolvido durante o projeto de iniciação científica “O trabalho de tradutor como fonte para a constituição de base de dados”. Através da documentação, recuperação e digitalização do glossário pessoal e de parte do acervo de livros de traduções do falecido tradutor público Gustavo Lohnefink, o referido projeto de pesquisa teve por objetivo principal constituir uma base de dados digital de termos técnicos para o par de línguas alemão – português e colocá-lo à disposição de tradutores(as. Para tanto, foi necessário o desenvolvimento de uma metodologia específica, aqui relatada, que poderá servir como ponto de partida para o tratamento e a recuperação de acervos semelhantes.

Boundary Layer Studies on a Spinning Tangent-Ogive-Cylinder Model

Science.gov (United States)

1975-07-01

ca) An experimental investigation of the Magnus effect on a seven caliber tangent-I ;’ ogive- cylinder model in supersonic flow is reported. The...necessary and Identify by block number) Three-Dimiensional Boundary Layer Compressible Flow Body of Revolution Magnus Effects Boundary Layer...factors have resulted in renewed interest in the study of the Magnus effect . This report describes an experimental study of the effects of spin on

Ácidos graxos trans: implicações nutricionais e fontes na dieta Trans fatty acids: nutritional implications and sources in the diet

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Clayton Antunes Martin

2004-09-01

Full Text Available Este artigo revisa as principais fontes de ácidos graxos trans na dieta e as implicações nutricionais da ingestão elevada destes isômeros. São apresentados resumidamente os métodos analíticos utilizados na identificação e quantificação dos ácidos graxos trans, sendo abordados as suas vantagens e desvantagens. Os alimentos que empregam gordura parcialmente hidrogenada na sua produção, são fontes importantes de isômeros trans na dieta da maior parte da população em países industrializados. Este estudo compara os níveis de ácidos graxos trans em gorduras hidrogenadas, margarinas e batatas frita, analisados em diversos países, incluindo o Brasil. Esta avaliação indica a presença de níveis elevados de isômeros trans em alimentos produzidos no Brasil.This article review the main sources of trans fatty acids in the diet and nutritional implications of the high intake of these isomers. Analytical methods for the identification and quantification of trans fatty acids are presented briefly with regard to advantages and drawbacks of each method. Foods make with partially hidrogenated fats are important sources of trans isomers in the diets of most people in industrialized countries. It is made a comparison between levels of trans fatty acids in shortenings, margarines and potato chips evaluated in Brazil and in other countries. High levels of trans isomers are noted in Brazilian foods.

Banalitet og egensind

DEFF Research Database (Denmark)

Tanderup, Sara

2009-01-01

Anmeldelse af Hannah Arendts Eichann i Jerusalem og Hans Magnus Enzensbergers Hamerstein eller egensindigheden......Anmeldelse af Hannah Arendts Eichann i Jerusalem og Hans Magnus Enzensbergers Hamerstein eller egensindigheden...

Fontes alternativas e doses de nitrogênio no milho safrinha em sucessão à soja Sidedressing nitrogen alternative sources and rates on out-of-season corn after soybean

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Rogério Peres Soratto

2010-12-01

Full Text Available A produtividade do milho safrinha pode ser aumentada com a adubação nitrogenada em cobertura mesmo quando cultivado em sucessão à soja. No entanto, existem inconsistências dos resultados especialmente quanto às fontes e doses a serem empregadas nessa modalidade de cultivo. Com o objetivo de avaliar o efeito de fontes e doses de nitrogênio em cobertura no milho safrinha, cultivado após soja no sistema plantio direto, conduziu-se o experimento em um Latossolo Vermelho distrófico, em Chapadão do Céu (GO. O delineamento experimental foi o de blocos ao acaso, em esquema fatorial 4 x 4, com quatro repetições. Os tratamentos foram constituídos pela combinação de quatro fontes (uréia, sulfato de amônio, uréia extrusada com produtos amiláceos (Amiréia® 180S e sulfonitrato de amônio com inibidor de nitrificação (Entec® 26 e quatro doses de nitrogênio (0; 30; 60 e 120 kg ha-1. A interação fonte x dose não foi significativa para nenhuma das variáveis avaliadas. A aplicação de nitrogênio na forma de entec proporcionou maiores teores de nitrogênio na folha do milho safrinha que o sulfato de amônio e a amiréia. A produtividade de grãos do milho safrinha foi maior quando o nitrogênio em cobertura foi fornecido na forma de sulfato de amônio, em comparação com a amiréia. A aplicação de nitrogênio em cobertura aumentou os teores de nitrogênio e enxofre na folha, altura da planta, diâmetro do colmo, número de espigas por planta e grãos por espiga, massa de 1.000 grãos e produtividade de grãos do milho safrinha, em sucessão à soja, independentemente da fonte utilizada.Out-of-season corn yield can be increased by nitrogen sidedressing fertilization even when sowed after soybean harvest. However, there is result inconsistency especially as to nitrogen sources and rates for corn in the cropping system. In order to evaluate the effect of sources and rates of sidedressed nitrogen application on out-of-season corn

Extensions of Fundamental Flow Physics to Practical MAV Aerodynamics

Science.gov (United States)

2016-05-01

of rotation, akin to the Magnus effect : = 2 4 ?̇? Then we obtain the above lift contribution by applying ∞. To this we...drag. Differences in circulatory lift are primarily a steady offset and not a slope change, and are ascribable to the “ Magnus effect ”. t’ C L 0 2 4...plunge are mutually irreconcilable, owing to the aforementioned Magnus effect of pitch-rate. The pitching case has much higher lift and drag than does

Missile Aerodynamics

Science.gov (United States)

1979-02-01

simplest demonstration of Magnus effect is provided by an infinite cylinder at right angles to a uniform stream. If the cylinder is at rest there is...loosely referred to as " Magnus effects " though their origin does not lie in the flow mechanism associated with spinning cylinders . As has already been... Magnus effects which I shall refer to briefly in my second introductory lecture. Aerial bombs in recent years have developed a new sub-division, namely

Flight Test Results for the Motions and Aerodynamics of a Cargo Container and a Cylindrical Slung Load

Science.gov (United States)

2010-04-01

cylinders is suspected to account for the lateral offset. A simple model of the Magnus effect (ref. 23) indicates that it generates force per...The spin also produced a small but measurable Magnus effect . An extreme cg offset produced stability around small end into the wind. The engine...expected. If we assume the flight data for cable angles are accurate to a fraction of a degree, then a Magnus effect similar to that found for spinning

Role of glutamatergic receptors located in the nucleus raphe magnus on antinociceptive effect of morphine microinjected into the nucleus cuneiformis of rat.

Science.gov (United States)

Haghparast, Abbas; Soltani-Hekmat, Ava; Khani, Abbas; Komaki, Alireza

2007-10-29

Neurons in the nucleus cuneiformis (CnF), located just ventrolateral to the periaqueductal gray, project to medullary nucleus raphe magnus (NRM), which is a key medullary relay for descending pain modulation and is critically involved in opioid-induced analgesia. Previous studies have shown that antinociceptive response of CnF-microinjected morphine can be modulated by the specific subtypes of glutamatergic receptors within the CnF. In this study, we evaluated the role of NMDA and kainate/AMPA receptors that are widely distributed within the NRM on morphine-induced antinociception elicited from the CnF. Hundred and five male Wistar rats weighing 250-300 g were used. Morphine (10, 20 and 40 microg) and NMDA receptor antagonist, MK-801 (10 microg) or kainate/AMPA receptor antagonist, DNQX (0.5 microg) in 0.5 microl saline were stereotaxically microinjected into the CnF and NRM, respectively. The latency of tail-flick response was measured at set intervals (2, 7, 12, 17, 22, 27 min after microinjection) by using an automated tail-flick analgesiometer. The results showed that morphine microinjection into the CnF dose-dependently causes increase in tail-flick latency (TFL). MK-801 microinjected into the NRM, just 1 min before morphine injection into the CnF, significantly attenuated antinociceptive effects of morphine. On the other hand, DNQX microinjected into the NRM, significantly increased TFL after local application of morphine into the CnF. We suggest that morphine related antinociceptive effect elicited from the CnF is mediated, in part, by NMDA receptor at the level of the NRM whereas kainite/AMPA receptor has a net inhibitory influence at the same pathway.

Inventory and categorization of radioactive sources in the CDTN, Minas Gerais, Brazil; Inventario e categorizacao de fontes radioativas no CDTN, Minas Gerais, Brasil

Energy Technology Data Exchange (ETDEWEB)

Silva, Fabio; Tello, Cledola Cassia Oliveira de, E-mail: silvaf@cdtn.b, E-mail: tellocc@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

2011-10-26

Radioactive sources have wide application, in the medicine, industry, agriculture and in the research centers. After the use those sources are considered radioactive wastes and conducted to the CNEN research institutes, that have the legal responsibility to receive and control. The safe attribution of wasted sources is essential for minimizing the possibility oc accident occurrence. The data of the stored sources in the CDTN are included and processed in the data bank SISFONT - Sistema de Informacoes sobre Fontes Seladas Fora de Uso, but this system does not allow their categorization. For that, a efficient, precise and easy interaction categorization system was developed

Disque denúncia como fonte de informações para análises criminais na Região Metropolitana de Salvador 2006-2011

OpenAIRE

Portella, Daniel Deivson Alves

2013-01-01

Introdução: O tráfico de drogas pode ser considerado como um dos fatores determinantes para o aumento de homicídios nas metrópoles e nas regiões metropolitanas. A grande frequência de crimes contribuiu para que a população passasse a fazer denúncias anônimas sobre os fatos criminosos através do programa Disque Denúncia,implantado na Bahia desde 2005. Objetivos: Analisar o Disque Denúncia como fonte de informações para análises criminais na Região Metropolitana de Salvador (RMS) de 2006-2011 e...

Registros de hóspedes como fonte de pesquisa para a História

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Liara Fagundes Echart

2016-03-01

Full Text Available O presente trabalho busca analisar os livros de registros e movimentação de hóspedes do Grande Hotel de Pelotas. O Grande Hotel foi inaugurado em 1928 e permaneceu em funcionamento até o ano de 2002. Atualmente no prédio, doado à Universidade Federal de Pelotas, encontra-se as dependências do Curso Superior de Tecnologia em Hotelaria. A metodologia utilizada consistiu na identificação e análise dos livros de registros e de movimentação de hóspedes do Grande Hotel de Pelotas. Concomitantemente ao processo de pesquisa documental, realizou-se a pesquisa bibliográfica acerca da temática proposta, a fim de realizar o questionamento sobre a relevância do assunto. Ao todo foram localizados 18 exemplares de livros de registros e movimentação de hóspedes, compreendendo o período entre meados de 1959 até 2002, sendo esta última data marcada pelo encerramento das atividades hoteleiras do Grande Hotel de Pelotas. Os livros de registros e movimentação de hóspedes do Grande Hotel mostraram-se uma importante fonte histórica para o estudo da hotelaria em Pelotas.

Líquens da área de reserva do Parque Estadual das Fontes do Ipiranga

Directory of Open Access Journals (Sweden)

Lúcia Yoko Nagaoka

1989-01-01

Full Text Available O objetivo deste trabalho é verificar a alteração da flora liquenica do parque neste século através da comparação de material de herbário com aquele encontrado atualmente na área de reserva do parque. Apenas 9 das 38 espécies levantadas em herbário puderam ser encontradas atualmente, sendo que a maioria apresenta sinais evidentes de perda de vigor e poderão desaparecer em pouco tempo. Pseudoparmelia texana (Tuck.Hale aparece nas coletas posteriores a 1973 sendo agora abundante sobre troncos nas áreas mais expostas.The Parque Estadual das Fontes do Ipiranga is within the urban area of the São Paulo city (São Paulo state, Brazil and through the years has received air effluents from a smelter of the vicinity. The aim of this work is to verify the change of the park's lichen flora by comparison of the extant flora with that held at the SP herbarium. Only 9 species can be found nowadays. 7 of them are very rare and from youngless populations. Parmotrema tinctorum (Nyl. Hale is rare. Pseudoparmelia texana (Tuck.Hale appears in the collections after 1973 and is now abundant, covering great trunk extensions at exposed places.

Potencialidade de uso de fontes alternativas de água para fins não potáveis em uma unidade residencial

OpenAIRE

Peters, Madelon Rebelo

2006-01-01

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pos-Graduação em Engenharia Ambiental. O uso racional da água compreende o controle de desperdícios e uma re-educação de hábitos e costumes. Esta re-educação está associada ao uso de fontes alternativas como, por exemplo, os efluentes tratados gerados na própria residência e a captação de águas pluviais, em substituição a água potável para fins que não seja o consumo humano. O uso de águas de c...

Fontes proteicas alternativas oriundas da cadeia produtiva do biodiesel para alimentação de ruminantes

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F.F. Medeiros

2015-04-01

Full Text Available Objetivou-se avaliar a degradação e a produção de gás de diferentes fontes proteicas geradas na cadeia produtiva do biodiesel em substituição à silagem de milho. Os tratamentos foram: coprodutos de Gossyypium hirsutum, Ricinus communis, Moringa oleifera, Jatropha curcas, Helianthus annus. Os produtos foram analisados mediante a técnica semiautomática de produção de gases in vitro. O coproduto da moringa apresentou maior taxa de degradação, quando comparado aos demais alimentos, porém apresentou baixa produção de gás e se tornou mais eficiente, sendo, portanto, indicado como o melhor nível (27,06% de substituição à silagem de milho. O coproduto da mamona e o do algodão produziram a maior quantidade de gás em 48h de incubação. Todos os coprodutos estudados podem ser utilizados na dieta de ruminantes como alimento proteico até 30% de substituição à silagem de milho.

Font attributes based text steganographic algorithm (FATS) for communicating images. A nuclear power plant perspective

Energy Technology Data Exchange (ETDEWEB)

Krishnan, R. Bala [Indira Gandhi Centre for Atomic Research, Kalpakkam (India). Computer Division; Thandra, Prasanth Kumar; Murty, S.A.V. Satya [Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Thiyagarajan, P. [Central Univ. of Tamil Nadu, Thiruvarur (India). Dept. of Computer Science

2017-03-15

Today even sensitive organizations like nuclear power plants are connected to the internet. As information security is of utmost priority to such organizations, achieving the same is a challenging task while using the public network like the internet. Though cryptography could be used to enhance the information security, it cannot hide its own presence from the attackers. This drawback lead security professionals to look for an alternate technique like steganography. Steganography hides the secret information, stealthily, inside another innocent looking cover medium like text, image, audio and video. Considering these, this paper proposes a novel text steganographic algorithm that embeds images as codes in the font attributes such as color, character spacing and kerning. The procedure of representing an image as codes makes the proposed method independent from the resolution of the image. Experiments were conducted by embedding diverse categories of images. A comparison with the best existing method depicted that the embedding capacity attained by the proposed method is higher at 1.59-bits/character, which suits best for low bandwidth environments. Various security aspects of the proposed method have also been discussed.

Font attributes based text steganographic algorithm (FATS) for communicating images. A nuclear power plant perspective

International Nuclear Information System (INIS)

Krishnan, R. Bala; Thiyagarajan, P.

2017-01-01

Today even sensitive organizations like nuclear power plants are connected to the internet. As information security is of utmost priority to such organizations, achieving the same is a challenging task while using the public network like the internet. Though cryptography could be used to enhance the information security, it cannot hide its own presence from the attackers. This drawback lead security professionals to look for an alternate technique like steganography. Steganography hides the secret information, stealthily, inside another innocent looking cover medium like text, image, audio and video. Considering these, this paper proposes a novel text steganographic algorithm that embeds images as codes in the font attributes such as color, character spacing and kerning. The procedure of representing an image as codes makes the proposed method independent from the resolution of the image. Experiments were conducted by embedding diverse categories of images. A comparison with the best existing method depicted that the embedding capacity attained by the proposed method is higher at 1.59-bits/character, which suits best for low bandwidth environments. Various security aspects of the proposed method have also been discussed.

INCERTEZAS NA REPRESENTAÇÃO DA SALUBRIDADE AMBIENTAL ATRAVÉS DE INDICADORES OBTIDOS COM BASE EM DIFERENTES FONTES DE INFORMAÇÃO. ESTUDO DE CASO: BACIA DO RIACHO REGINALDO EM MACEIÓ, ALAGOAS

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José Aparecido da Silva Gama

2016-12-01

Full Text Available Indicadores têm sido utilizados para representar a qualidade e abrangência na prestação de serviços de saneamento básico. Entretanto, diferentes fontes de informação abordam de forma distinta cada um dos componentes do saneamento. O IBGE, por exemplo, mostra como os usuários acessam (ou usam determinado serviço, enquanto o prestador do serviço traz sua abrangência e disponibilidade. Assim, a disponibilidade de determinado serviço de saneamento (abastecimento de água, por exemplo não garante que todos os usuários fazem uso (ou se beneficiam dele e da mesma forma. Com este trabalho, apresenta-se uma metodologia para composição de um Indicador de Salubridade Ambiental (ISA/Maceió, considerando informações relacionadas à prestação de serviços de saneamento básico provenientes de duas fontes: IBGE (censo 2010 e prestadores municipais de serviços de saneamento. O trabalho resultou em: (i adaptação de metodologias existentes de cálculo do ISA, considerando informações locais disponíveis; (ii a composição e (iii o mapeamento do ISA. A metodologia foi aplicada em estudo de caso na bacia do riacho Reginaldo em Maceió/AL, e os resultados mostraram que a fonte de informação utilizada pode gerar distorções importantes de interpretação do ISA. De maneira geral, a bacia estudada apresenta grande variação nas condições de salubridade ambiental, com setores censitários variando de condição de salubridade muito baixa a alta, considerando a realidade local.

Cargas polínicas de abelhas polinizadoras de Byrsonima chrysophylla Kunth. (Malpighiaceae: fidelidade e fontes alternativas de recursos florais Pollen loads of pollinator bees of Byrsonima chrysophylla Kunth. (Malpighiaceae: fidelity and alternative sources of flower resources

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Éville Karina Maciel Delgado Ribeiro

2008-03-01

Full Text Available Byrsonima chrysophylla, conhecida popularmente como murici pitanga, é uma espécie arbustiva que ocorre em restinga. Dentre seus visitantes, além de abelhas da tribo Centridini, também se encontram com freqüência abelhas Xylocopini. Para verificação das espécies vegetais utilizadas pelas abelhas visitantes mais freqüentes, cargas polínicas de suas pernas posteriores (n = 5, bem como de ninhos naturais de Centris caxiensis (n = 7 foram analisados através de acetólise. Durante toda a floração, Byrsonima chrysophylla foi a principal fonte de pólen utilizada por suas abelhas visitantes. Comolia lythrarioides e Myrcia obtusa foram fontes secundárias de pólen, Mouriri guianensis foi fonte secundária de óleo e pólen, enquanto Anacardium microcarpum, Cuphea tenella, Matayba discolor e Phthirusa pyrifolia mostraram-se importantes fontes de néctar durante esse período, sendo o pólen detectado nas amostras, provavelmente aderido ao corpo das abelhas durante a coleta de néctar. Os resultados demonstram que as abelhas visitantes não misturaram os recursos polínicos durante o vôo para a coleta de pólen, apresentando fidelidade às flores de Byrsonima chrysophylla.Byrsonima chrysophylla, known as "murici pitanga", is a shrubby species occurring in 'restinga'. Among its visitors, bees of the Centridini tribe as well as Xylocopini bees are frequently found. To detect which plant species have been used by the most frequent visitors, pollen loads from the back legs (n = 5 and also from natural nests of Centris caxiensis (n = 7 were treated by acetolysis. During flowering of Byrsonima chrysophylla, this plant species was the main pollen source used by bees. Comolia lythrarioides and Myrcia sylvatica were secondary pollen sources, Mouriri guianensis was a secondary oil and pollen source, while Anacardium microcarpum, Cuphea tenella, Matayba discolor and Phthirusa pyrifolia were important nectar sources at this time. The pollen detected in

Três mulheres no nazismo: Reflexões sobre as fontes do comportamento moral

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Maria Claudia Coelho

2009-07-01

Full Text Available Este trabalho discute as fontes do comportamento moral. Seu ponto de partida é a crítica feita à sociologia da moral durkheimiana por Zygmunt Bauman, que problematiza os pressupostos da origem social da moral e sua natureza coercitiva. Bauman contrapropõe, com base nas obras de Hannah Arendt e Emmanuel Lévinas, uma concepção de moralidade cujo núcleo é a responsabilidade para com o outro. A discussão é empreendida com base em três filmes que retratam cada qual a trajetória de uma mulher durante o nazismo: Traudl Junge, Sophie Scholl e Leni Riefenstahl. O eixo da análise é o modo como responsabilidade, culpa e consciência se entrelaçam em suas trajetórias. This article discusses the sources of moral behaviour. Its point of departure is Zygmunt Bauman’s criticism of the Durkheimian sociology of morality, challenging the assumptions of the social origin of morality and its coercive nature. Drawing on Hannah Arendt’s and Emmanuel Levinas’ works, Bauman counter-proposes a concept of morality based on responsibility toward each other. The discussion is then developed in relation to three fi lms that portray, each in their own way, the experience of a woman during the Nazi regime: Traudl Junge, Sophie Scholl and Leni Riefenstahl. The analysis is centred on how responsibility, guilt and conscience intertwine in the course of those lives.

Produtividade da cultura da melancia em função de fontes e doses de potássio Yield of watermelon fruits as a function of sources and doses of potassium

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Arthur Bernardes Cecílio Filho

2004-06-01

Full Text Available Foram conduzidos dois experimentos em propriedades rurais próximas à cidade de Borborema - SP, nos períodos de outubro a dezembro de 2001 e de fevereiro a abril de 2002, com o objetivo de avaliar a produtividade de melancia (Citrullus lanatus (Thumb. Matsum. & Nakai, híbrido Tide, em função de fontes e doses de potássio. O delineamento experimental utilizado foi o de blocos casualizados completos, em esquema fatorial 3 x 4, com três repetições, sendo utilizadas as fontes: cloreto KCl, nitrato (KNO3 e sulfato de potássio (K2SO4 e as doses: 50; 100; 200 e 300 kg de K2O ha-1. Foram avaliados o peso médio de fruto, o número de frutos e produção por planta e produtividade. O maior número de frutos por planta estimado foi obtido nas doses de 190 e 300 kg K2O ha-1, respectivamente, nas fontes KNO3 e KCl. Não houve diferença significativa entre as doses para K2SO4. Para o peso médio de fruto, houve diferença significativa entre as fontes apenas no cultivo de fevereiro a abril de 2002, quando o KCl proporcionou maior peso. A maior produção por planta foi obtida com K2SO4, seguido por KNO3 e KCl. Entretanto, as doses de potássio para as máximas produtividades foram de 132, 193 e 205 kg K2O ha-1, respectivamente, para as fontes K2SO4, KNO3 e KCl. O plantio de outubro a dezembro de 2001 proporcionou maior peso médio, produção de frutos por planta e produtividade, ao passo que o maior número de frutos por planta foi obtido no cultivo de fevereiro a abril de 2002.Two field experiments were conducted in Borborema, State of São Paulo, from periods of October to December of the 2001 and February to April of 2002, with the objective of evaluate the yield of watermelon (Tide hybrid (Citrullus lanatus (Thumb. Matsum. & Nakai in function of sources and doses of potassium. The experimental design was a randomized complete block, with three replications, in a 3 x 4 factorial scheme, being evaluated sources: potassium chloride, nitrate and

1561-IJBCS-Article-Olivier Marc

African Journals Online (AJOL)

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Mémoire de DEA, Université de. Ouagadougou, 122p. Bélem M, Guinko S. 1997. Exploitation et utilisation des végétaux de la forêt classée de Toessin. Province du Passoré, Burkina. Faso. Sciences et Techniques, Sciences. Naturelles, 23(1): 80-92. Bélem M. 2009. Les ligneux alimentaires des galeries forestières de la ...

1612-IJBCS-Article- Luc Olivier

African Journals Online (AJOL)

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douce, l'air pur et un climat relativement stable, sont dégradés ou utilisés de manière non durable (UN, 2005) .... l'année 2003 (année humide), alors que la valeur minimale 755,2 mm est enregistrée pendant l'année 2005 qui ... relative de l'air est élevée. Le bassin en étude présente des sols très variés, répartis en fonction ...

Agronomic efficiency of potassium fertilization in lettuce fertilized with alternative nutrient sources Eficiência agronômica da adubação potássica na alface adubada com fontes alternativas de nutrientes

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Douglas Ramos Guelfi-Silva

2013-06-01

Full Text Available The aim of this study was to evaluate the effect of alternative sources of nutrients on the nutrition, yield and efficiency of potassium fertilization in lettuce. The experiment was carried out in a greenhouse, using 3.7 kg pots filled with a dystrophic red-yellow Latosol of medium texture. The experimental design was randomized, with treatments divided into a 4 x 6 factorial: four doses of potassium (0; 200; 400; 600 kg ha-1 K2O and six alternative sources of nutrients (breccia, ultramafic, biotite schist, phlogopite, and mining and Chapada by-products, with four replications. Content and accumulation were determined for potassium (K, copper (Cu, zinc (Zn and nickel (Ni in the lettuce shoots, and from these data two indices were calculated for the efficiency of potassium as a fertilizer. The application of increasing values of alternative sources of nutrients promoted improvements in nutrition and increases in lettuce yield. The efficiency of potassium fertilization decreased with the increase in values of potassium taken from alternative nutrient sources, with the mining by-products and the ultramafic being superior to the other sources. Crushed silicate rocks and mining by-products can therefore both be used as fertilizer in organic and conventional production systems.O objetivo desse estudo foi avaliar o efeito da aplicação de fontes alternativas de nutrientes na nutrição, produção e eficiência da adubação potássica na alface. O experimento foi conduzido em casa de vegetação, em vasos com 3,7 kg preenchidos com um Latossolo Vermelho Amarelo distrófico de textura média. O delineamento experimental foi inteiramente casualizado e os tratamentos foram distribuídos em arranjo fatorial 4 x 6, sendo quatro doses de potássio (0; 200; 400; 600 kg ha-1 de K2O e seis fontes alternativas de nutrientes (brecha, ultramáfica, biotita xisto, flogopitito, subproduto de mineração e subproduto de chapada, com quatro repetições. Foram

Consumo e conhecimento sobre alimentos fontes de lipídeos por professores de escola técnica em saúde = Consumption and knowledge on source of lipid foods by health technical school teachers

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Anastácio, Gislaine

2009-01-01

Full Text Available Objetivo: Investigar o hábito de consumo e conhecimentos sobre alimentos fontes de lipídios, entre os professores de uma Escola Técnica em Saúde da Rede Estadual de Ensino em Porto Alegre, RS. Materiais e Métodos: Estudo transversal, realizado com professores de ambos os sexos, através de um questionário de frequência de consumo alimentar contendo nove grupos alimentares, predominantemente fontes de lipídeos e, outro questionário, visando o reconhecimento sobre gorduras alimentares e os efeitos na saúde humana. A análise estatística foi descritiva e com auxílio do software Excel. Resultados: 39 professores participaram da pesquisa, destes 28 mulheres e média de 43±11anos de idade. O consumo de azeite de oliva diariamente foi citado por 38% dos participantes e leite desnatado em 41%. Margarina é habitual para cerca de 25% deles e mais da metade do grupo nega uso de maionese e manteiga. Referem consumo frequente, de 1 a 3 vezes por semana, para pizza (54%, carne bovina sem gordura aparente (49% e ave sem pele (70%. Os embutidos, frituras e preparações à milanesa são de consumo eventual para a maioria, inclusive as oleaginosas. Conclusão: Os professores demonstram adequados conhecimentos sobre a importância de selecionar alimentos que são fontes de gordura e sobre seus efeitos no organismo. Eles também exercem boas escolhas desses alimentos, no seu dia-a-dia. Esclarecimentos adicionais em Nutrição poderão contribuir ainda mais à prática saudável e à difusão dessas informações

Fontes energéticas vegetais para juvenis de jundiá e carpa

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V. Corrêia

2012-06-01

Full Text Available Para avaliar o desempenho, o metabolismo e a composição corporal de juvenis de jundiá (Rhamdia quelen e de carpa húngara (Cyprinus carpio alimentados com fontes energéticas vegetais, foi conduzido experimento de 60 dias. Três dietas compostas por aveia descascada, farelo de arroz desengordurado estabilizado (FADE ou por farelo de trigo e milho (dieta-controle foram ofertadas três vezes ao dia a 360 juvenis de jundiá (5,59±0,06g ou de carpa húngara (5,82±0,14g distribuídos em 18 tanques (280L, totalizando nove tanques por espécie. Não foram observadas diferenças significativas no desempenho das espécies estudadas. Em relação aos parâmetros metabólicos, as menores concentrações séricas de colesterol total no jundiá foram verificadas nas dietas com aveia (214,49mg/dL e FADE (216,3mg/dL, enquanto para a carpa húngara as menores concentrações observadas foram nos peixes alimentados com FADE (222,54mg/dL. Quanto à composição centesimal, os valores de gordura no filé foram menores nos jundiás dos tratamentos controle (3,76% e aveia (3,95%. A inclusão de aveia proporcionou menor deposição de gordura corporal em ambas as espécies. Conclui-se que 20% de aveia descascada ou de farelo de arroz desengordurado podem ser incluídos na dieta de juvenis de jundiá e de carpa húngara sem prejuízos para o crescimento.

Estudo do efeito da incorporação de plastificante de fonte renovável em compostos de PVC

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Derval dos Santos Rosa

2013-01-01

Full Text Available O acúmulo de resíduos poliméricos tem crescido nos últimos anos e os subsolos dos lixões já estão saturados com resíduos plásticos. Isso possivelmente se deve à elevada produção de resíduos sólidos de plásticos (cerca de 25 mil t/dia em 2008, segundo a Lei de Resíduos. Em vista disso, este trabalho apresenta uma análise comparativa do estudo do potencial de (biodegradação de compostos de PVC utilizando um plastificante de origem vegetal renovável (PFR com estrutura de éster de milho com massa molar 296,5 g.mol- 1 e dois plastificantes sintéticos, ftalato de dioctila (DOP e adipato de dioctila (DOA, buscando inovar na obtenção de um composto de PVC com um plastificante de fonte renovável. Os resultados de FTIR evidenciaram maior interação do PFR com a resina de PVC para o teor de 30 phr, e para o teor de 40 phr observou-se que os plastificantes DOP e PFR apresentaram os mesmos valores de variação da banda atática. Já os ensaios mecânicos reforçaram os resultados de FTIR com maior compatibilidade para as composições contendo PFR. Uma maior estabilidade térmica no composto de PVC foi observada por TGA para a amostra contendo 40 phr de DOA, o que foi confirmado por RMN, e para a amostra com PFR nos teores de 30 e 40 phr. Por fim, uma perda significativa de massa foi observada nos ensaios de resistência à extração por solvente para os compostos contendo DOA, sendo que a amostra com 30 phr mostrou menor valor de extração. A biodegradação em solo simulado mostrou maior perda de massa para as amostras plastificadas com DOA (40phr e PFR (40phr. Isso indica que é viável usar plastificante de fonte renovável nos compostos de PVC, devido à compatibilidade deste com esta resina.

Revision of Fontes & Garnier's model for the initial 14C content of dissolved inorganic carbon used in groundwater dating

Science.gov (United States)

Han, Liang-Feng; Plummer, Niel

2013-01-01

The widely applied model for groundwater dating using 14C proposed by Fontes and Garnier (F&G) (Fontes and Garnier, 1979) estimates the initial 14C content in waters from carbonate-rock aquifers affected by isotopic exchange. Usually, the model of F&G is applied in one of two ways: (1) using a single 13C fractionation factor of gaseous CO2 with respect to a solid carbonate mineral, εg/s, regardless of whether the carbon isotopic exchange is controlled by soil CO2 in the unsaturated zone, or by solid carbonate mineral in the saturated zone; or (2) using different fractionation factors if the exchange process is dominated by soil CO2 gas as opposed to solid carbonate mineral (typically calcite). An analysis of the F&G model shows an inadequate conceptualization, resulting in underestimation of the initial 14C values (14C0) for groundwater systems that have undergone isotopic exchange. The degree to which the 14C0 is underestimated increases with the extent of isotopic exchange. Examples show that in extreme cases, the error in calculated adjusted initial 14C values can be more than 20% modern carbon (pmc). A model is derived that revises the mass balance method of F&G by using a modified model conceptualization. The derivation yields a “global” model both for carbon isotopic exchange dominated by gaseous CO2 in the unsaturated zone, and for carbon isotopic exchange dominated by solid carbonate mineral in the saturated zone. However, the revised model requires different parameters for exchange dominated by gaseous CO2 as opposed to exchange dominated by solid carbonate minerals. The revised model for exchange dominated by gaseous CO2 is shown to be identical to the model of Mook (Mook, 1976). For groundwater systems where exchange occurs both in the unsaturated zone and saturated zone, the revised model can still be used; however, 14C0 will be slightly underestimated. Finally, in carbonate systems undergoing complex geochemical reactions, such as oxidation of

Levantamento das principais fontes de desperdício de unidades assistenciais de um hospital universitário

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Valéria Castilho

2011-12-01

Full Text Available Este estudo teve como principais objetivos levantar os diferentes tipos de desperdício, suas causas e sugestões para eliminá-los, segundo a opinião de profissionais de enfermagem e médicos atuantes em unidades de Clínica Médica, Clínica Cirúrgica, Pediatria, Alojamento Conjunto e Berçário; e estimar o custo da principal fonte de desperdício nessas unidades. Trata-se de um estudo descritivo, exploratório, com abordagem quantitativa realizado no Hospital Universitário da Universidade de São Paulo. A amostra foi constituída por 189 profissionais de enfermagem e médicos. O desperdício relacionado aos materiais (36% foi o mais apontado por todas as categorias profissionais seguido pelo desperdício de estrutura física (27%. Os materiais desperdiçados mais citados foram os medicamentos, pacotes de curativo, papel sulfite e dispositivos de infusão. O custo do desperdício anual com materiais nas unidades estudadas pode girar em torno de R$ 479.262,86.

Produtividade, acúmulo de nitrato e estado nutricional de cultivares de alface, em hidroponia, em função de fontes de nutrientes

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Fernandes Adriano Alves

2002-01-01

Full Text Available Foram avaliados a produtividade, acúmulo de nitrato e estado nutricional das cultivares de alface Regina, Babá de Verão e Grandes Lagos em cultivo hidropônico. O experimento foi conduzido no outono, de 25/03 a 20/05/99 em estufa da UFV. Foram avaliados dois conjuntos de fontes de nutrientes para compor as soluções nutritivas de crescimento vegetativo, que continham: 13,6; 1,0; 7,0; 4,48; e 2,5 mmol L-1 de N, P, K, Ca e Mg, respectivamente. O enxofre foi fornecido na concentração de 3,5 ou 2,5 mmol L-1 e os micronutrientes nas concentrações de 45; 32; 46; 2; 0,9; e 0,2 mmol L-1 para Fe, Mn, B, Zn, Cu e Mo, respectivamente. A solução 1 forneceu 21,9% de N na forma amoniacal, e a solução 2, 100% de N na forma de nitrato. As fontes de P empregadas foram fosfato monoamônico e fosfato monopotássico para as soluções 1 e 2 respectivamente, sendo que esta variação implicou no uso de diferentes quantidades de KCl nas soluções, o que proporcionou concentrações diferentes de Cl, apresentando-se 6,76 e 2,18 mmol L-1 para as soluções 1 e 2, respectivamente. O cultivo foi feito em recipiente plástico com 8L de capacidade, contendo três plantas. Os recipientes foram arranjados de modo que se obtivesse espaçamento de 0,22 m entre plantas. O delineamento experimental utilizado foi blocos ao acaso com seis repetições, em arranjo fatorial 2 x 3 (soluções x cultivares. Cada parcela foi constituída por três plantas. Foram avaliados o peso da matéria fresca da parte aérea, folhas, raízes e caule, número de folhas, comprimento do caule, porcentagem de matéria seca das folhas e estado nutricional da planta. A cv. Regina produziu 233 g planta-1 e a cv. Babá de Verão 193 g planta-1. Os resultados obtidos para a cultivar Grandes Lagos não foram satisfatórios nas condições do experimento. A solução 1 proporcionou menores concentrações de nitrato para as cultivares Grandes Lagos (1082 mg kg-1 de matéria fresca e Regina (1092

Utilização de frutos de cactos (Cactaceae como recurso alimentar por vespas sociais (Hymenoptera, Vespidae, Polistinae em uma área de caatinga (Ipirá, Bahia, Brasil The use of cactus fruit food resources by social wasp (Hymenoptera, Vespidae, Polistinae in an area of Caatinga (lpirá, Bahia, Brazil

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Gilberto M. M. Santos

2007-12-01

Full Text Available Este estudo teve por objetivo identificar as espécies utilizadas como recurso alimentar e descrever os padrões locais de utilização de frutos de cactos como recurso alimentar por vespas sociais em uma área de Caatinga. Novecentos e oito indivíduos de nove espécies de vespas foram capturados visitando seis espécies de cactáceas. Cereus jamacaru DC. e Pilosocereus catingicola (Gurke Byles & G.D foram as cactáceas mais utilizadas por vespas sociais, tanto em número de espécies quanto de indivíduos. Polybia paulista von Ihering, 1896, Polybia ignobilis (Haliday, 1836, Polistes versicolor (Olivier, 1791, Polistes simillimus Zikán, 1951, Polistes billardieri Fabricius, 1804, Polistes canadensis (Linnaeus, 1758, Polybia occidentalis (Olivier, 1791 e Polybia sericea (Olivier, 1705 apresentaram as maiores amplitudes de nicho trófico. As maiores sobreposições no nicho trófico foram observadas entre Mischocyttarus lanei Zikán, 1949 e Polistes simillimus Zikán, 1951 (0,83. Os altos níveis de sobreposição de nichos observados são explicados em função do comportamento generalista das vespas sociais, bem como da exploração intensiva de poucas espécies de cactáceas.This study aims to identify food resource plants used by social wasp species in a Caatinga area, as well as describe the local patterns of cactus fruit resources used by wasps. Nine hundreds and eight foraging wasps, belonging to nine species, were captured while visiting six cactus species. Cereus jamacaru DC. and Pilosocereus catingicola (Gurke Byles & G.D. were the most frequently visited plants. Several wasp species and a great number of individuals visited them. Polybia paulista von Ihering, 1896, Polybia ignobilis (Haliday, 1836, Polistes versicolor (Olivier, 1791, Polistes simillimus Zikán, 1951, Polistes billardieri Fabricius, 1804, Polistes canadensis (Linnaeus, 1758, Polybia occidentalis (Olivier, 1791 and Polybia sericea (Olivier, 1705 had the larger trophic

Grupo Padre Luiz Gonzaga - Bragança-PA: arquivos, método e fontes da história da educação da Amazônia, no século XX

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Maria José Aviz do Rosário

2015-08-01

Full Text Available O trabalho objetiva apresentar análise das primeiras fontes históricas sobre o Grupo Escolar Padre Luiz Gonzaga, de Bragança - PA. Pautou - se em dois propósitos, recuperação e disponibilização da história e memória dessa instituição escolar, de formação do povo bragantino, no Século XX e contribuição ao registro de fontes históricas das instituições escolares da Região Amazônica. A metodologia constituiu-se do levantamento e análise de fontes históricas documentais, orais e iconográficas. Na análise procurou - se discutir o conceito e a importância de método do trabalho com fontes históricas, articulando o conhecimento mais geral sobre a formação educacional paraense e brasileira, fazendo-se aproximações de como foram forjadas as propostas educacionais no contexto bragantino por meio do grupo. A primeira etapa dedicou-se aos documentos escritos, Projeto Político Pedagógico e cadernetas escolares e a iconografia composta de retratos com os quais pode – se compor as primeiras cenas da educação do grupo. Em seguida ouviu-se a segunda diretora, a segunda secretária e as professoras da primeira geração e segunda geração. A análise aponta o grupo como instrumento de articulação da proposta de expansão da educação primária nos anos de 1960, já que sua criação, em 1962, atendia a reivindicação da nova população da cidade, composta de agricultores e pescadores dos campos, das praias e colônias que empurrados para os arrabaldes da cidade, exigiam do poder público, escola para seus filhos. A escola também era tida como modelo pedagógico em que prevaleciam o respeito e a disciplina; o amor à pátria incutido pelo cântico do Hino Nacional; a preocupação em não deixar criança sem estudar, por meio do famoso “jeito”; a influência da igreja católica; pela catequese de responsabilidade da paróquia, cujo ápice era realização da primeira comunhão; a distribuição de merenda escolar

Efeito da suplementação com pupunha como fonte de vitamina A em dieta: estudo em ratos

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Lucia K.O. Yuyama

1996-02-01

Full Text Available Foi estudado o efeito da suplementação com pupunha (Bactris gasipaes H.B.K., polpa cozida e transformada em farinha, como fonte de vitamina A, em dieta regional de Manaus, AM,Brasil, por meio do ensaio biológico com ratos. A metodologia utilizada foi da depleção dos animais em zinco e vitamina A, seguida da repleção com a dieta regional (DR, DR + pupunha, DR + vitamina A e dieta controle (DC. A dieta foi elaborada para famílias com rendimentos inferiores a dois salários-mínimos. Foram utilizadas ratas albinas adultas pós-parto, cada qual com 6 filhotes machos, que receberam ração à base de caseína lavada com EDTA a 1%, sem adição de Zn e vitamina A, por 25 dias, com a finalidade de obtenção de animais recém-desmamados deficientes nestes dois nutrientes. O período de repleção dos animais, recém-desmamados, foi de 30 dias e o delineamento foi inteiramente casualizado com 4 tratamentos de 8 animais cada. A suplementação efetuada seguiu as recomendações do "Committee on Laboratory Animal Diets". Os parâmetros empregados para a avaliação da utilização de vitamina A foram as concentrações de vitamina A no fígado e plasma e o crescimento dos animais. Ao final do experimento, observou-se que os animais que consumiram a ração à base da dieta regional de Manaus, suplementada com pupunha e vitamina A, apresentaram, respectivamente, concentração significativamente maior de vitamina A no fígado, 43,3 ± 6,5 µg/g e 42,0 ± 4,3 µg/g em relação à dieta regional, 5,5 ± 1,1 µg/g (p<0,05. A quantidade de zinco presente na dieta regional de Manaus, 10,7 mg diários, foi biodisponível quando avaliada pela concentração de zinco nos fêmures. Os resultados sugerem que existe necessidade de suplementação da dieta regional de Manaus com vitamina A para a manutenção das reservas hepáticas, podendo, para tanto, ser utilizada a fonte natural da pupunha.

Desempenho e rendimento de carcaça de bovinos mestiços alimentados com diferentes volumosos e fontes protéicas Performance and carcass dressing in crossbreed steers fed different forage and nitrogen sources

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Fernanda Macitelli

2007-12-01

Full Text Available Quarenta bovinos machos, com 30 meses de idade e 371 kg, foram distribuídos em um delineamento em blocos casualizado com esquema fatorial 3 x 3, para avaliar o desempenho e rendimento de carcaça quando alimentados com diferentes fontes protéicas (Amiferm, uréia e farelo de soja e volumosos (pastagem de capim-braquiária, cana-de-açúcar e silagem de milho. As dietas foram balanceadas para conterem níveis semelhantes de EM e PB. A interação volumoso x fonte de N não foi significativa para nenhum dos parâmetros estudados. O ganho de peso vivo diário (GPV/dia dos animais alimentados com cana-de-açúcar (0,83 kg não diferiu dos mantidos em pastagem (0,82 kg, mas ambos foram menores que dos animais alimentados com silagem de milho (1,09 kg. As diferentes fontes de N proporcionaram GPV/dia semelhantes, com valores de 0,94; 0,83 e 0,97 kg, para os animais que receberam uréia, Amiferm e farelo de soja, respectivamente. As dietas contendo farelo de soja proporcionaram maior ganho de carcaça diário (0,57 kg em relação ao uso de Amiferm, não diferindo da uréia (0,55 kg. Não houve diferença entre volumosos e fontes nitrogenadas para rendimento de carcaça, rendimento de carcaça do corpo vazio, rendimento de carcaça do ganho de peso e espessura de gordura, com média de 51,03%, 54,49%, 60,10% e 8,5 mm, respectivamente. O uso de Amiferm proporcionou ganhos de peso e rendimento de carcaça semelhantes às demais fontes protéicas.Forty steers averaging 371 kg BW were allotted to a randomized block design, in a factorial scheme 3 x 3 to evaluate the effect of feeding different protein sources (urea, amiferm, soybean meal and forage (sugar cane, corn silage and pasture Bracharia brizantha on performance and carcass dressing. Diets were formulated to contain similar ME and CP protein levels. Forage and nitrogen source interaction was not significant for all studied factors. Daily live weight (LWG/day of animal fed sugar cane (0.83 kg did

Por dentro da autoeficácia: um estudo sobre seus fundamentos teóricos, suas fontes e conceitos correlatos

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Marizeth Barros

2010-09-01

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