Pathomimie de l'enfant: à propos d'une observation

PubMed Central

Abilkassem, Rachid; Dini, Nezha; Ourai, Hakim; Kmari, Mohamed; Agadr, Aomar

2013-01-01

La pathomimie cutanée se définit comme une maladie factice, provoquée dans un etat de conscience claire par le patient lui-même, au niveau du revêtement cutanéo-muqueux et/ou des phanères. Rare chez l'enfant, il s'agit d'une manifestation psychopathologique potentiellement grave et souvent difficile à prendre en charge. Nous rapportons le cas d'une fillette de 10 ans présentant une pathomimie sous forme de lésions excoriées multiples du visage. PMID:23504605

On the Interpretation of Supernova Light Echo Profiles and Spectra

NASA Astrophysics Data System (ADS)

Rest, A.; Sinnott, B.; Welch, D. L.; Foley, R. J.; Narayan, G.; Mandel, K.; Huber, M. E.; Blondin, S.

2011-05-01

The light echo (LE) systems of historical supernovae in the Milky Way and local group galaxies provide an unprecedented opportunity to reveal the effects of asymmetry on observables, particularly optical spectra. Scattering dust at different locations on the LE ellipsoid witnesses the supernova from different perspectives, and the light consequently scattered toward Earth preserves the shape of line profile variations introduced by asymmetries in the supernova photosphere. However, the interpretation of supernova LE spectra to date has not involved a detailed consideration of the effects of outburst duration and geometrical scattering modifications due to finite scattering dust filament dimension, inclination, and image point-spread function and spectrograph slit width. In this paper, we explore the implications of these factors and present a framework for future-resolved supernova LE spectra interpretation, and test it against Cas A and SN 1987A LE spectra. We conclude that the full modeling of the dimensions and orientation of the scattering dust using the observed LEs at two or more epochs is critical for the correct interpretation of LE spectra. Indeed, without doing so one might falsely conclude that differences exist when none are actually present.

Numerical investigation of laminar forced convection in Newtonian and non-Newtonian flows in eccentric annuli

NASA Astrophysics Data System (ADS)

Fang, Pingping

1998-12-01

An extended numerical investigation of fully developed, forced convective laminar flows with heat transfer in eccentric annuli has been carried out. Both Newtonian and non-Newtonian (power-law or Ostwald-de Waele) fluids are studied, representing typical applications in petrochemical, bio-chemical, personal care products, polymer/plastic extrusion and food industries. For the heat transfer problem, with an insulated outer surface, two types of thermal boundary conditions have been considered: Constant wall temperature (T), and uniform axial heat flux with constant peripheral temperature (H1) on the inner surface of the annulus. The governing differential equations for momentum and energy conservation are solved by finite-difference methods. Velocity and temperature distributions in the flow cross section, the wall shear-stress distribution, and isothermal f Re, Nu i,T and Nu i,H1 values for different eccentric annuli (0/leɛ/*/le0.6,/ 0.2/le r/sp/*/le0.8) are presented. In Newtonian flows, the eccentricity is found to have a very strong influence on the flow and temperature fields. In an annulus with relatively large inner cylinder eccentricity, the flow tends to stagnate in the narrow section and has higher peak velocities in the wide section of the annulus. There is considerable flow maldistribution in the azimuthal direction, which in turn produces greater nonuniformity in the temperature field and a consequent degradation in the average heat transfer. Also, the H1 wall condition sustains higher heat transfer coefficients relative to the T boundary condition on the inner surface. For viscous, power-law type non-Newtonian flows, both shear thinning (n<1) and shear thickening (n>1) fluids are considered. Here, the non-linear shear behavior of the fluid is found to further aggravate the flow and temperature maldistribution, and once again the eccentricity is seen to exhibit a very strong influence on the friction and heat transfer behavior. Finally, the hydrodynamic characteristics of fully developed axial laminar flow of Newtonian fluids in eccentric annuli with a rotating inner cylinder are investigated. These are of significant importance to the design and operation of oil and gas drilling wells. Using finite-difference method to solve the governing flow equations in bipolar coordinates, computational results for a wide range of annulus geometry (0/le r/sp/*/le1,/ 0/le/varepsilon/sp/*/le0.8), and rotational Reynolds number (0/le Rer/le150) are presented, where the rotational speeds are restricted to the sub-critical Taylor number regime. The results delineate the effects of annuli r/sp/* and ɛsp/*, and inner cylinder rotation speed on the flow structure and frictional losses.

Portevin-Le Chatelier effect under cyclic loading: experimental and numerical investigations

NASA Astrophysics Data System (ADS)

Mazière, M.; Pujol d'Andrebo, Q.

2015-10-01

The Portevin-Le Chatelier (PLC) effect is generally evidenced by the apparition of serrated yielding under monotonic tensile loading conditions. It appears at room temperature in some aluminium alloys, around ? in some steels and in many other metallic materials. This effect is associated with the propagation of bands of plastic deformation in tensile specimens and can in some cases lead to unexpected failures. The PLC effect has been widely simulated under monotonic conditions using finite elements and an appropriate mechanical model able to reproduce serrations and strain localization. The occurrence of serrations can be predicted using an analytical stability analysis. Recently, this serrated yielding has also been observed in specimens made of Cobalt-based superalloy under cyclic loading, after a large number of cycles. The mechanical model has been identified in this case to accurately reproduce this critical number of cycle where serrations appear. The associated apparition of localized bands of deformation in specimens and their influence on its failure has also been investigated using finite element simulations.

Mechanism of Prism-Coupled Scanning Tunneling Microscope Light Emission

NASA Astrophysics Data System (ADS)

Iida, Wataru; Ahamed, Jamal U.; Katano, Satoshi; Uehara, Yoichi

2011-09-01

We have investigated the mechanism of scanning tunneling microscope light emission (STM-LE) in a prism-coupled configuration using finite difference time domain analysis. In this configuration, the sample is a metallic thin film evaporated on the bottom surface of a hemispherical glass prism. STM light emitted into the prism (prism-side emission) through the metallic film is measured. Since both localized surface plasmons (LSP) and surface plasmon polaritons (SPP) contribute to prism-side emission, this emission is stronger than that in conventional STM-LE measured from the sample surface side, which is radiated by LSP alone. We show that the spatial resolution of prism-side emission is determined not by the propagation length of SPP, but by the lateral size of LSP, similarly to conventional (i.e., tip side) STM-LE. Thus, we conclude that, by using the prism-coupled configuration, the signal level of STM-LE improves without the loss of spatial resolution attained in tip side emission.

Le surpoids, l’obésité et le contrôle glycémique chez les diabétiques du centre de référence provincial de diabète (CRD), Kénitra, Maroc

PubMed Central

Lotfi, Zeghari; Aboussaleh, Youssef; Sbaibi, Rachid; Achouri, Imane; Benguedour, Rachid

2017-01-01

Introduction Le diabète est définit comme un trouble de l'assimilation, de l'utilisation et du stockage des sucres apportés par l'alimentation, sa prise en charge est assurée par le suivi du surpoids et l'obésité et le contrôle glycémique régulier. L'objectif de ce travail était l'étude du surpoids, l'obésité et le contrôle glycémique chez 2227 diabétiques de différent type (type 1, 2 et gestationnel), consultants le centre de référence provincial de diabète (CRD), Kénitra-Maroc. Méthodes L'étude s'est déroulée sur une période d'une année du mois janvier au mois décembre 2015, L'évaluation du surpoids et l'obésité a été effectuée par le calcul de l'Indice de Masse Corporelle (IMC=Poids/Taille2 (Kg/m2)), elles sont définit respectivement par IMC > 25 Kg/m2, et IMC > 30 Kg/m2, le poids et la taille ont été mesurés selon les recommandations de l'organisation mondiale de santé (OMS), Le contrôle glycémique a été effectué par l'analyse sanguine de l'Hémoglobine glycosylée et de la Glycémie à jeun. Les normes sont 7% pour l'Hémoglobine glycosylée et 0,70g/l à 1,10g/l pour la Glycémie à jeun. Résultats L'intervalle d'âges des patients est compris entre 8 mois et 80 ans, avec une dominance des diabétiques provenant du milieu urbain (74%) par rapport à ceux provenant du milieu rural (26%). Le surpoids touche l'ensemble de cette population. L'IMC moyen des femmes tends vers l'obésité (IMC≈30): (29,21 Kg/m2 ± 3,1) pour le diabète gestationnel et (29,15 Kg/m2 ± 3,2) pour le diabète de type 2. Les valeurs du contrôle glycémique sont supérieures aux normes: avec 8,5% ± 2,6 > 7% pour l'hémoglobine glycosylée et 1,5 g/l ± 1,3 > 1,10g/l pour la Glycémie à jeun. La différence entre les valeurs de l'hémoglobine glycosylée entre les hommes (8,5 7% ± 2,6) et les femmes (8,1% ± 2,3) n'est pas significative (P > 0,05), même chose pour la Glycémie capillaire à jeun: pour les hommes (1,44 g/l ± 1,1) et les femmes (1,43 g/l ± 1,2). Les coefficients de corrélation de Pearson sont hautement significatifs (P<0,005); d'une part entre IMC et la Glycémie à jeun (r = 0,5) et d'autre part entre IMC et les valeurs de l'Hémoglobine glycosylée (r = 0,4). Conclusion L'ensemble des diabétiques présente des valeurs de l'IMC et du contrôle glycémique, supérieures aux normes. Des recherches approfondies sont nécessaires sur ces diabétiques afin de dresser un programme urgent de remédiation. PMID:28904714

Practical aspects of prestack depth migration with finite differences

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ober, C.C.; Oldfield, R.A.; Womble, D.E.

1997-07-01

Finite-difference, prestack, depth migrations offers significant improvements over Kirchhoff methods in imaging near or under salt structures. The authors have implemented a finite-difference prestack depth migration algorithm for use on massively parallel computers which is discussed. The image quality of the finite-difference scheme has been investigated and suggested improvements are discussed. In this presentation, the authors discuss an implicit finite difference migration code, called Salvo, that has been developed through an ACTI (Advanced Computational Technology Initiative) joint project. This code is designed to be efficient on a variety of massively parallel computers. It takes advantage of both frequency and spatialmore » parallelism as well as the use of nodes dedicated to data input/output (I/O). Besides giving an overview of the finite-difference algorithm and some of the parallelism techniques used, migration results using both Kirchhoff and finite-difference migration will be presented and compared. The authors start out with a very simple Cartoon model where one can intuitively see the multiple travel paths and some of the potential problems that will be encountered with Kirchhoff migration. More complex synthetic models as well as results from actual seismic data from the Gulf of Mexico will be shown.« less

Fluctuation theorem for Hamiltonian Systems: Le Chatelier's principle

NASA Astrophysics Data System (ADS)

Evans, Denis J.; Searles, Debra J.; Mittag, Emil

2001-05-01

For thermostated dissipative systems, the fluctuation theorem gives an analytical expression for the ratio of probabilities that the time-averaged entropy production in a finite system observed for a finite time takes on a specified value compared to the negative of that value. In the past, it has been generally thought that the presence of some thermostating mechanism was an essential component of any system that satisfies a fluctuation theorem. In the present paper, we point out that a fluctuation theorem can be derived for purely Hamiltonian systems, with or without applied dissipative fields.

Simulating the impact of brine from desalination plants on the salinity of the Persian/Arabian Gulf

NASA Astrophysics Data System (ADS)

Eltahir, E. A. B.; Ibrahim, H. D.

2016-12-01

The Middle East has an arid climate and very little freshwater from river runoff, which has forced a rapid expansion of desalination plants in the region in order to meet current and future freshwater demand due to rising population. The Gulf is the source of feedwater and sink of concentrated discharge (brine) for plants producing more than half of the world's desalination capacity. Moreover, the Gulf is one of the most saline water bodies in the world due to large evaporation that far exceeds the input of freshwater from precipitation and river runoff. An increase in salinity at the regional scale due to brine discharge may reduce the quality of feedwater to plants and efficiency of desalination, and at the basin scale, a rise in salinity may change the dynamics of water circulation and adversely impact the marine biota. Here we present modeling results from simulating the impact of desalination on the natural Gulf environment using a coupled Gulf-atmosphere regional model (GARM). GARM is the first two-way coupled model developed for the Gulf system. The hydrodynamic component of GARM is the unstructured grid finite volume coastal ocean model (FVCOM) and the atmosphere component of GARM is the MIT regional climate model (MRCM), both of which have been widely used in simulating regional ocean and atmospheric dynamics. Desalination activity is incorporated into GARM as a boundary condition and the Gulf system is simulated for a ten-year time period in order to quantify the impact of brine discharge both at regional and basin scales. These results will be useful for desalination plant design and planning for current and future water security in the region.

Exact finite volume expectation values of \\overline{Ψ}Ψ in the massive Thirring model from light-cone lattice correlators

NASA Astrophysics Data System (ADS)

Hegedűs, Árpád

2018-03-01

In this paper, using the light-cone lattice regularization, we compute the finite volume expectation values of the composite operator \\overline{Ψ}Ψ between pure fermion states in the Massive Thirring Model. In the light-cone regularized picture, this expectation value is related to 2-point functions of lattice spin operators being located at neighboring sites of the lattice. The operator \\overline{Ψ}Ψ is proportional to the trace of the stress-energy tensor. This is why the continuum finite volume expectation values can be computed also from the set of non-linear integral equations (NLIE) governing the finite volume spectrum of the theory. Our results for the expectation values coming from the computation of lattice correlators agree with those of the NLIE computations. Previous conjectures for the LeClair-Mussardo-type series representation of the expectation values are also checked.

Sur la modélisation des supraconducteurs : le ``modèle de l'état critique'' de Bean, en trois dimensions

NASA Astrophysics Data System (ADS)

Bossavit, A.

1993-03-01

Macroscopic modelling of superconductors demands a substitution of some nonlinear behavior law for Ohm's law. For this, a version of Bean's “critical state” model, derived from the setting of a convex functional of the current density field, valid in dimension 3 without any previous assumption about the direction of currents, is proposed. It is shown how two standard three-dimensional finite element methods (“h-formulation” and “e-formulation”), once fitted with this model, can deal with situations were superconductors are present. La modélisation macroscopique des supraconducteurs suppose le remplacement de la loi d'Ohm par une loi de comportement non linéaire adéquate. On présente à cet effet une version du “modèle de Bean”, ou modèle de l'état critique, basée sur la construction d'une certaine fonctionnelle convexe du champ des densités de courant, qui est valable en dimension 3 sans hypothèses préalables sur la direction des courants. On montre comment adapter deux méthodes standards de calcul de courants de Foucault par élérnents finis en trois dimensions (“en h” et “en e”) à la présence de supraconducteurs, en incorporant ce modèle.

Carcinome neuroendocrine thymique: à propos d’un cas et revue de la littérature

PubMed Central

Ramahandrisoa, Andriatsihoarana Voahary Nasandratriniavo; Hasiniatsy, Nomeharisoa Rodrigue Emile; Refeno, Valéry; Vololonantenaina, Clairette Raharisolo; Rakotoarisoa, Andriamihaja Jean Claude; Rakotovao, Hanitrala Jean Louis; Rafaramino, Florine

2017-01-01

Les tumeurs neuroendocrines thymiques (TNET) sont rares, de pronostic mal connu. L'objectif est de rapporter un cas de TNET et discuter la difficulté diagnostique et thérapeutique en milieu à faibles ressources. Un homme de 60 ans présentait une douleur thoracique, une toux grasse et un amaigrissement récent. Le scanner thoracique révélait une masse tissulaire médiastinale antérieure. L'histologie définitive obtenue quatre mois après la biopsie par médiastinotomie antérieure montrait une TNET bien différenciée, avec marquage intense à la chromogranine et à la synaptophysine. La recherche d'autres tumeurs neuroendocrines et le bilan d'extension étaient négatifs. La tumeur était inextirpable d'emblée et la radiothérapie indisponible. Le patient a reçu deux lignes de chimiothérapie première. Avec un recul de 16 mois, le patient était asymptomatique, mais en progression tumorale. Le diagnostic de TNET peut être retardé quand l'examen immunohistochimique n'est pas réalisé en routine. La chimiothérapie apporte une amélioration des symptômes en situation palliative. PMID:28451004

Statistics of Lyapunov exponents of quasi-one-dimensional disordered systems

NASA Astrophysics Data System (ADS)

Zhang, Yan-Yang; Xiong, Shi-Jie

2005-10-01

Statistical properties of Lyapunov exponents (LE) are numerically calculated in a quasi-one-dimensional (1D) Anderson model, which is in a 2D or 3D lattice with a finite cross section. The single-parameter scaling (SPS) variable τ relating the Lyapunov exponents γ and their variances σ by τ≡σ2L/⟨γ⟩ is calculated for different lateral coupling t and disorder strength W . In a wide range of t , τ is approximately independent of W , but it has different values for LEs in different channels. For small t , the distribution of the smallest LE is non-Gaussian and τ strongly depends on W , remarkably different from the 1D SPS hypothesis.

Allier théorie et pratique dans la lutte contre la pandémie du Sida

PubMed Central

Zerbo, Roger

2014-01-01

Le premier cas d'infection par le VIH a été notifié en 1986 au Burkina Faso. L'ignorance qui entourait cette infection et l'absence de traitement curatif a amplifié ses conséquences sociales et économiques. La mise en œuvre des interventions communautaire est un enjeu majeur actuel qui recommande la compréhension des logiques sociales endogènes qui influencent les comportements individuels et collectifs. C'est en cela que l'implication des sciences sociales dans la lutte contre les maladies, en particulier le Sida constitue un enjeu, en termes de définition et d'identification de leur contribution. Dans notre propos, nous pouvons mettre en évidence trois niveaux de contribution des sciences sociales, notamment la sociologie, l'anthropologie, la psychologie et dans une certaine mesure le droit et l’économie, à la prévention du Sida et la prise en charge des personnes infectées par le VIH. Il faut noter que ces disciplines contribuent à la lutte contre le VIH d'une part, par des réflexions et des éléments d'analyses constructives, et d'autre part, l'aptitude des porteurs de ces disciplines est parfois sollicitée pour l'efficacité de la mise en œuvre des actions et l'organisation des systèmes de soins. PMID:25722761

Cholestéatome du méat acoustique externe

PubMed Central

Azeddine, Lachkar; Aabach, Ahmed; Chouai, Mohamed; Elayoubi, Fahd; Ghailan, Mohamed Rachid

2016-01-01

Le cholestéatome du méat acoustique externe se définit comme une accumulation de kératine en regard d’une érosion osseuse de nature ostéitique. C’est une entité otologique rare ou peut diagnostiquée. Le but de notre travail est d’illustrer sur la base d’un cas un cholestéatome du méat acoustique externe. Il s’agit d’un patient âgé de 65 ans diabétique et hypertendu sous traitement, présentant depuis 3 mois une otalgie droite intense, insomniante, avec hypoacousie, otorrhée purulente minime et paralysie faciale droite grade V. Le diagnostic évoqué était dans un premier temps celui d’otite externe maligne. Il a été mis sous traitement antibiotique sans amélioration. L’examen otologique a trouvé une lésion ulcéro-bourgeonnante de la paroi postérieure du méat acoustique externe droit, une biopsie systématique de la lésion a été pratiquée et a conclu à un cholestéatome. Le patient a bénéficié d’une tympanoplastie en technique ouverte. Le cholestéatome du méat acoustique externe est rare, la symptomatologie clinique n’est pas spécifique, le scanner des rocher est d’un grand apport pour le diagnostic positif montrant un cratère osseux du méat acoustique externe. Le traitement dépend de l’extension des lésions allant des simples soins locaux à une tympanoplastie en technique ouverte. Le cholestéatome du méat acoustique externe peut revêtir plusieurs aspects, et prêter confusion avec d’autres pathologies du méat acoustique externe. PMID:28154624

[Finite element study of maxillary Le Fort-I osteotomy with rigid internal fixation].

PubMed

Zhou, Jian; Sun, Geng-Lin; Wu, Wei; Xu, Chong-Tao; Wang, Peng-Lin

2010-05-01

To study the biomechanical characteristic of maxillary Le fort- I osteotomy with rigid internal fixation (RIF) , so as to choose best fixation method. The 3-dimensional finite element models of maxillary Le Fort-I osteotomy with 9 kinds of RIF methods were established. Then the models were divided into three groups to calculate the stress distribution of the maxilla and the displacement of bone segment under 3 kinds of occlusion condition. The fixation stability of the different RIF methods was evaluated. Under the incisor occlusion condition, the stress of the cranio maxillary complex transmits mainly along the nasal-maxillary buttress. Under the premolar and molar occlusion condition, the stress transmits along the alveolar process first, then turns to the nasal-maxillary and zygomatic-maxillary buttress. The focused stress position of the internal fixation system is at the connection between the screws and the plate and at the plate near the osteotomy line. Under the premolar occlusion condition, the displacement of bone segment with different RIF methods was (in a decreasing order) 0.396509 mm (with bio-absorbable plate), 0.148393 mm (with micro-plate ), 0.078436 mm (with mini-plate) in group 1; 0.188791 mm (fixing at the nasal-maxillary buttress), 0.121718 mm (fixing at the zygomatic-maxillary buttress), 0.078436 mm (fixing at the both buttress) in group 2; 0.091023 mm (with straight plate), 0.078436 mm (with L shape plate), 0.072450 mm (with Y shape plate), 0.065617 mm (with T shape plate) in group 3. The fixation stability of using the bio-absorbable plate in Le Fort-I osteotomy is less stable than using the titanium plate. Fixing at the zygomatic-maxillary buttress is more stable than at the naso-maxillary buttress. The fixation stability is different by using different shapes of plates.

Méthodes de type éléments finis pour le calcul des champs électriques et magnétiques en électroencéphalographie et magnétoencéphalographie

NASA Astrophysics Data System (ADS)

Guérin, Christophe; Marin, Gildas; Garnero, Line; Meunier, Gérard

1997-12-01

So as to compute the electric potential and the flux density generated by the electrical activity of the brain, numerical methods based on the Finite Element Method have been developed. These methods, which can treat realistic head models and can take into account anisotropy of conductivity, for instance in the skull, are presented. Then two numerical examples are described: a spherical model and a realistic head model. Afin de calculer le potentiel électrique et l'induction créés par l'activité électrique du cerveau, nous avons développé des méthodes utilisant la Méthode des Éléments Finis. Ces méthodes, qui peuvent s'appliquer à des modèles réalistes de tête et qui permettent de tenir compte de la conductivité anisotrope de certains tissus comme l'os, sont présentées. Puis deux exemples numériques sont décrits : un modèle de sphères concentriques et un modèle réaliste de tête.

Cost Structure and Life Cycle Cost (LCC) for Military Systems (structures de couts globaux de possession (LCC) pour systemes militaires)

DTIC Science & Technology

2003-06-01

variables. Dans le plan (p = 2), la méthode de régression linéaire ajuste au nuage de points une droite qui minimise la somme des écarts au carré entre...cohérence de la définition du produit. Par exemple, pour un blindé, il faut valider l ’ « harmonie » du trio masse, puissance du moteur et vitesse maximale. Il...en condition opérationnelle. De façon plus générale, la DGA devrait s’orienter vers l ‘élaboration et l’acquisition de modèle d’estimation de coûts du

Exact Lyapunov exponent of the harmonic magnon modes of one-dimensional Heisenberg-Mattis spin glasses

NASA Astrophysics Data System (ADS)

Sepehrinia, Reza; Niry, M. D.; Bozorg, B.; Tabar, M. Reza Rahimi; Sahimi, Muhammad

2008-03-01

A mapping is developed between the linearized equation of motion for the dynamics of the transverse modes at T=0 of the Heisenberg-Mattis model of one-dimensional (1D) spin glasses and the (discretized) random wave equation. The mapping is used to derive an exact expression for the Lyapunov exponent (LE) of the magnon modes of spin glasses and to show that it follows anomalous scaling at low magnon frequencies. In addition, through numerical simulations, the differences between the LE and the density of states of the wave equation in a discrete 1D model of randomly disordered media (those with a finite correlation length) and that of continuous media (with a zero correlation length) are demonstrated and emphasized.

Parallel solution of high-order numerical schemes for solving incompressible flows

NASA Technical Reports Server (NTRS)

Milner, Edward J.; Lin, Avi; Liou, May-Fun; Blech, Richard A.

1993-01-01

A new parallel numerical scheme for solving incompressible steady-state flows is presented. The algorithm uses a finite-difference approach to solving the Navier-Stokes equations. The algorithms are scalable and expandable. They may be used with only two processors or with as many processors as are available. The code is general and expandable. Any size grid may be used. Four processors of the NASA LeRC Hypercluster were used to solve for steady-state flow in a driven square cavity. The Hypercluster was configured in a distributed-memory, hypercube-like architecture. By using a 50-by-50 finite-difference solution grid, an efficiency of 74 percent (a speedup of 2.96) was obtained.

Modeling North Atlantic Nor'easters With Modern Wave Forecast Models

NASA Astrophysics Data System (ADS)

Perrie, Will; Toulany, Bechara; Roland, Aron; Dutour-Sikiric, Mathieu; Chen, Changsheng; Beardsley, Robert C.; Qi, Jianhua; Hu, Yongcun; Casey, Michael P.; Shen, Hui

2018-01-01

Three state-of-the-art operational wave forecast model systems are implemented on fine-resolution grids for the Northwest Atlantic. These models are: (1) a composite model system consisting of SWAN implemented within WAVEWATCHIII® (the latter is hereafter, WW3) on a nested system of traditional structured grids, (2) an unstructured grid finite-volume wave model denoted "SWAVE," using SWAN physics, and (3) an unstructured grid finite element wind wave model denoted as "WWM" (for "wind wave model") which uses WW3 physics. Models are implemented on grid systems that include relatively large domains to capture the wave energy generated by the storms, as well as including fine-resolution nearshore regions of the southern Gulf of Maine with resolution on the scale of 25 m to simulate areas where inundation and coastal damage have occurred, due to the storms. Storm cases include three intense midlatitude cases: a spring Nor'easter storm in May 2005, the Patriot's Day storm in 2007, and the Boxing Day storm in 2010. Although these wave model systems have comparable overall properties in terms of their performance and skill, it is found that there are differences. Models that use more advanced physics, as presented in recent versions of WW3, tuned to regional characteristics, as in the Gulf of Maine and the Northwest Atlantic, can give enhanced results.

Le syndrome des jambes sans repos: fréquence et facteurs de risque chez l'hémodialysé

PubMed Central

Soumeila, Illiassou; Keita, Salia; Elhassani, Anis; Sidibé, Mohamed; Alaoui, Khadija; Kabbali, Nadia; Arrayhani, Mohamed; Sqalli, Tarik

2015-01-01

Le syndrome des jambes sans repos (SJSR) ou syndrome d'impatience musculaire est un trouble moteur caractérisé par des sensations désagréables dans les jambes. Les causes sont mal connues et sa fréquence est estimée entre 25% et 75% chez les hémodialysés. Il s'agit d'une étude transversale monocentrique menée au centre d'hémodialyse du CHU Hassan II de Fès (hôpital Al Ghassani) entre décembre 2012 et janvier 2013. Nous avons défini le syndrome de jambes sans repos selon la définition de l'international restless legs study group de 2003 reposant sur 4 critères essentiels au diagnostic. L'international restless legs syndrome scale (IRLES) a été coté par un même néphrologue pour mesurer la sévérité du syndrome des jambes sans repos. 84 hémodialysés ont répondu au questionnaire avec 41,7% de cas de SJSR dont 6,6% de formes graves. Nous avons retrouvé une association entre le SJSR et la carence martiale p(0,018), la néphropathie initiale p(0,041), l'HTA p(0,026) et le sexe féminin p(0,024). Dans notre série, il ressort que la carence martiale et l'HTA sont les principaux facteurs de risque modifiables de ce syndrome chez nos patients. Les facteurs traditionnels comme le tabagisme, l’âge supérieur à 50 ans et la dialyse inadéquate ne sont pas associés à ce trouble dans notre série. PMID:26015849

Modèle tridimensionnel pour coupler les équations magnétiques et électriques dans le cas de la magnétostatique

NASA Astrophysics Data System (ADS)

Piriou, F.; Razek, A.

1991-03-01

In this paper a 3D model for coupling of magnetic and electric equations is presented. The magnetic equations are solved with the help of finite element method using the magnetic vector potential formulation. To take into account the effects of magnetic saturation we use the Newton-Raphson algorithm. We develop the analysis permitting the coupling of magnetic and electric equations to obtain a difrerential system equations which can be solved with numerical integration. As example we model an iron core coil and the validity of our model is verified by a comparison of the obtained results with an analytical solution and a 2D code calculation. Dans cet article est présenté un modèle 3D qui permet de coupler les équations magnétiques et électriques. Les équations magnétiques sont résolues à l'aide de la méthode des éléments finis en utilisant une formulation en potentiel vecteur magnétique. Dans le modèle proposé les effets de la saturation du circuit magnétique sont pris en compte en utilisant l'algorithme de Newton-Raphson. On montre comment relier les équations magnétiques avec celles du circuit électrique pour aboutir à un système d'équations différentielles que l'on résout avec une intégration numérique. A titre d'exemple on modélise une bobine à noyau ferromagnétique et pour montrer la validité du modèle on compare les résultats obtenus avec une solution analytique et un code de calcul 2D.

Approche de prise en charge du trouble du spectre de l’autisme

PubMed Central

Lee, Patrick F.; Thomas, Roger E.; Lee, Patricia A.

2015-01-01

Résumé Objectif Se pencher sur les critères diagnostiques du trouble du spectre de l’autisme (TSA) comme les définit le Manuel diagnostique et statistique des troubles mentaux, cinquième édition (DSM-V), et concevoir une approche de prise en charge du TSA à l’aide du cadre CanMEDS–Médecine familiale (CanMEDS-MF). Sources d’information Le DSM-V, publié par l’American Psychiatric Association en mai 2013, énonce de nouveaux critères diagnostiques du TSA. Le cadre CanMEDS-MF du Collège des médecins de famille du Canada fournit un plan d’orientation pour la prise en charge complexe du TSA. Nous avons utilisé des données recueillies par le Centers for Disease Control and Prevention afin de déterminer la prévalence du TSA, ainsi que la revue systématique et méta-analyse détaillée effectuée par le National Institute for Health and Care Excellence du R.-U. pour ses lignes directrices sur le TSA dans le but d’évaluer les données probantes issues de plus de 100 interventions. Message principal Selon les données du Centers for Disease Control and Prevention, la prévalence du TSA se chiffrait à 1 sur 88 en 2008 aux États-Unis. La classification du TSA dans la quatrième édition du DSM incluait l’autisme, le syndrome d’Asperger, le trouble envahissant du développement et le trouble désintégratif de l’enfance. La dernière révision du DSM-V réunit tous ces troubles sous la mention TSA, avec différents niveaux de sévérité. La prise en charge du TSA est complexe; elle exige les efforts d’une équipe multidisciplinaire ainsi que des soins continus. Les rôles CanMEDS-MF fournissent un cadre de prise en charge. Conclusion Les médecins de famille sont au cœur de l’équipe de soins multidisciplinaire pour le TSA, et le cadre CanMEDS-MF tient lieu de plan détaillé pour guider la prise en charge d’un enfant atteint de TSA et aider la famille de cet enfant.

Summary of Synoptic Meteorological Observations. North American Coastal Marine Areas - Revised. Atlantic and Gulf Coasts. Volume I. Revised. Area 1 - Belle Isle Strait. Area 2 - Osv Bravo. Area 3 - NE Newfoundland Coast. Area 4 - SE Newfoundland Coast. Area 5 - Placentia Bay South. Area 6 - Cabot Strait. Area 7 - Anticosti Island

DTIC Science & Technology

1975-05-01

H71 JUNE T4BU 1? IKEA 0006 CABPT STKAIT »6.7N 58.in PCT FKfO Of AID TEMPERATURE (DE6 Fl ANn THE OCCURRENCE OF FOB IWITHGUT PRECIPITATION...OVE»-iLL) m7*-1970 JULY T«»LE IT IKEA 0006 CilOT STIUIT 46.6N Sa.lW PCT f»P0 0» Mi TEMPE»»TU»E (D6G Fl »MB THE

CapDEM Exercise Gamma: Results and Discussion

DTIC Science & Technology

2011-06-01

DU MATERIEL Assurer la gestion et la prestation de services d’infrastructure fiables. L’utilisation d’infrastructures de ...Reine (en droit du Canada), telle que représentée par le ministre de la Défense nationale, 2011 DRDC Ottawa TR 2011-044 i Abstract...définition, l’ingénierie et la gestion collaboratives des capacités (DIGCap). L’objectif principal de ce dernier volet de la Stratégie

On the phenomenology of tilted domains in lamellar eutectic growth

NASA Astrophysics Data System (ADS)

Caroli, B.; Caroli, C.; Fauve, S.

1992-03-01

We show that, due to the coupling between tilt (amplitude of the antisymmetric part of the font profile) and phase dynamics, the phenomenology of tilt domains of finite width proposed by Coullet et al. within the assumption of a subcritical homogeneous tilt bifurcation retains the same qualitative features when this bifurcation is direct, as is the case for lamellar eutectics. Nous montrons que, du fait du couplage entre les dynamiques d'inclinaison (amplitude de la partie impaire du profil de front) et de phase, la phénoménologie des domaines d'inclinaison de largeur finie proposée par Coullet et al. pour le cas d'une bifurcation d'inclinaison homogène sous critique garde les mêmes caractéristiques qualitatives quand cette bifurcation est directe, comme c'est le cas pour la croissance eutectique lamellaire.

Néphrocalcinose compliquant une miliaire tuberculeuse chez un nourrisson

PubMed Central

El Maghraoui, Jaouad; Souilmi, Fatima Zahrae; Hbibi, Mohamed; Houssaini, Tarik Sqalli; Hida, Mustapha

2015-01-01

La néphrocalcinose se définit par la présence anormale dans le parenchyme rénal de dépôts calciques pouvant résulter de différentes affections. Nous rapportons le cas d'un nourrisson de 7 mois chez qui nous avons diagnostiqué une hypercalcémie compliquée par une néphrocalcinose secondaire à une tuberculose miliaire aggravée par l'intoxication à la vitamine D améliorée sous hyperhydratation, furosémide et glucocorticoïdes. A travers ce travail, nous insistons sur l'intérêt de la recherche d'une hypercalcémie devant toute infection tuberculeuse, de la prise en charge rapide et adaptée sans oublié d'interrompre la supplémentation en vitamine D. PMID:26309458

Syndrome métabolique chez les patients hypertendus dans le service cardiologie du CHU Yalgado Ouedraogo de Ouagadougou, Burkina Faso

PubMed Central

Millogo, Georges Rosario Christian; Samandoulougou, André; Yaméogo, Nobila Valentin; Yaméogo, Aristide Relwendé; Kologo, Koudougou Jonas; Toguyeni, Jean Yves; Zabsonré, Patrice

2014-01-01

Introduction Le syndrome métabolique constitue de nos jours un véritable problème de santé publique. Le syndrome métabolique est le moteur d'une double épidémie mondiale de diabète type II et de maladies cardiovasculaires. L'objectif de notre étude est de décrire les aspects épidémiologiques, cliniques, para cliniques et évolutifs chez les hypertendus dans le service de Cardiologie du CHU Yalgado Ouédraogo. Méthodes Il s'agissait d'une étude rétrospective sur une période de deux ans dans le service de cardiologie chez les patients hypertendus ayant un syndrome métabolique. Résultats La fréquence du syndrome métabolique était de 17,5% des patients hypertendus. Le sex ratio était de 1,2. L’âge moyen des patients étaient de 56,1 ±10,7 ans. Les patients connus hypertendus étaient de 92,1% avec une durée moyenne d’évolution de l'HTA qui était de 8,7 ± 5,9 ans. Le suivi était irrégulier dans 60% cas et une rupture du traitement dans 37,1% des cas. La dyslipidémie était notée dans 84,2% des cas et le diabète dans 60,5% des cas. La PAS moyenne était de 184,3 ± 47,3 mmHg et la PAD moyenne était de 110,7 ± 27,7 mmHg. L'HTA était sévère dans 63,2% des cas. La glycémie moyenne était de 8,3 ± 4,3 mmol/L, le LDL cholestérol moyen était de 3,5 ± 1,0 mmol/L et le taux des triglycérides moyen était de 1,6 ± 1,1 mmol/L. L'HVG électrique était notée chez 76,3% des patients et échographique dans 58,8% des cas. Les atteintes viscérales étaient neurologique dans 44,5%, rénale dans 55,3% et cardiaque dans 31,2% des cas. Le nombre moyen d'antihypertenseurs était de 3,0 ± 1,0 et 76,3% ont reçu au moins une trithérapie antihypertensive. Le taux de mortalité était de 5,3%. Conclusion Le syndrome métabolique est une pathologie qui pose la problématique de la définition qui n'est pas consensuelle d'une part et d'autre part du contrôle de ses éléments constitutifs surtout l'HTA. PMID:25883718

Stratégie transfusionnelle des hémorragies graves du post-partum: étude rétrospective à propos de 47 cas

PubMed Central

Khouadja, Hosni; Rouissi, Wissem; Mahjoub, Mohamed; Sakhri, Jaballah; Beletaifa, Dhafer; Jazia, Khaled Ben

2016-01-01

Introduction L’hémorragie du post-partum est la principale cause de morbi-mortalité maternelle dans le monde. La prise en charge est multidisciplinaire. La stratégie transfusionnelle est capitale jouant un rôle majeur dans le pronostic maternel. L’objectif de ce travail a été de déterminer le rapport PFC/CGR lors de la prise en charge des hémorragies graves du post-partum. Méthodes Une étude Etude rétrospective sur une période de 4 ans (2009-2012) a été réalisée dans un centre de maternité de référence de niveau III du centre-Est tunisien. Elle a inclut les parturientes admises pour une hémorragie sévère du post-partum définit par la nécessité d’une transfusion de plus de 04 CGR durant les 3 premières heures ou de plus de 10 CGR durant les 24 premières heures de prise en charge. Résultats Notre étude a inclut 47 parturientes. Le diagnostic de l’HPP a été fait devant un saignement vaginal dans 28 cas et suite à une césarienne dans 19 cas. En préopératoire le taux d’Hb a été de 6.3 g/dl. Le rapport transfusionnel (PFC/CGR) a été de 1/0.7. Conclusion Au cours de notre prise en charge, le rapport transfusionnel a été plus élevé que les recommandations récentes de la littérature stipulant une administration précoce et massive de PFC avec un ratio PFC/CGR compris entre 1/2 et 1/1. L’administration du fibrinogène (Fbg) et de l’acide tranexamique doit être précoce. L’emploi du facteur VII activé recombinant (rFVIIa) doit rester une solution ultime de prise en charge. PMID:28292131

A Scale-Invariant ``Discrete-Time'' Balitsky--Kovchegov Equation

NASA Astrophysics Data System (ADS)

Bialas, A.; Peschanski, R.

2005-06-01

We consider a version of QCD dipole cascading corresponding to a finite number n of discrete Δ Y steps of branching in rapidity. Using the discretization scheme preserving the holomorphic factorizability and scale-invariance in position space of the dipole splitting function, we derive an exact recurrence formula from step to step which plays the rôle of a ``discrete-time'' Balitsky--Kovchegov equation. The BK solutions are recovered in the limit n=∞ and Δ Y=0.

A constitutive model accounting for strain ageing effects on work-hardening. Application to a C-Mn steel

NASA Astrophysics Data System (ADS)

Ren, Sicong; Mazière, Matthieu; Forest, Samuel; Morgeneyer, Thilo F.; Rousselier, Gilles

2017-12-01

One of the most successful models for describing the Portevin-Le Chatelier effect in engineering applications is the Kubin-Estrin-McCormick model (KEMC). In the present work, the influence of dynamic strain ageing on dynamic recovery due to dislocation annihilation is introduced in order to improve the KEMC model. This modification accounts for additional strain hardening rate due to limited dislocation annihilation by the diffusion of solute atoms and dislocation pinning at low strain rate and/or high temperature. The parameters associated with this novel formulation are identified based on tensile tests for a C-Mn steel at seven temperatures ranging from 20 °C to 350 °C. The validity of the model and the improvement compared to existing models are tested using 2D and 3D finite element simulations of the Portevin-Le Chatelier effect in tension.

On the application of subcell resolution to conservation laws with stiff source terms

NASA Technical Reports Server (NTRS)

Chang, Shih-Hung

1989-01-01

LeVeque and Yee recently investigated a one-dimensional scalar conservation law with stiff source terms modeling the reacting flow problems and discovered that for the very stiff case most of the current finite difference methods developed for non-reacting flows would produce wrong solutions when there is a propagating discontinuity. A numerical scheme, essentially nonoscillatory/subcell resolution - characteristic direction (ENO/SRCD), is proposed for solving conservation laws with stiff source terms. This scheme is a modification of Harten's ENO scheme with subcell resolution, ENO/SR. The locations of the discontinuities and the characteristic directions are essential in the design. Strang's time-splitting method is used and time evolutions are done by advancing along the characteristics. Numerical experiment using this scheme shows excellent results on the model problem of LeVeque and Yee. Comparisons of the results of ENO, ENO/SR, and ENO/SRCD are also presented.

Évaluation des caractéristiques mécaniques du polissoir en polyuréthanne utilisé comme porte abrasifs durant le processus du polissage du verre optique

NASA Astrophysics Data System (ADS)

Aliouane, T.; Bouzid, D.; Belkhir, N.; Bouzid, S.; Herold, V.

2005-05-01

La fabrication des composants en verre optique nécessite des moyens de grande précision dans les procédés de finition vue l'importance accordée à leur qualité.
Durant le processus de polissage des verres optiques, le polissoir est un élément clé et a un impact direct sur les performances des composants optiques, non seulement il est utilisé comme support de grains abrasifs mais il doit posséder la fonction de transmission de la pression aux grains. La connaissance de ses propriétés, essentiellement mécanique, est impérative afin d'obtenir un état de surface optimal des composants optiques destinés à remplir des fonctions très précises dans des appareils optiques très performants.
Dans cette étude, nous avons constaté que les propriétés des polissoirs en polyuréthanne tel que la dureté, le module d'élasticité et la densité varient au cours du polissage. Ce changement a des effets sur l'état de surface de verre optique, causé par le changement microstructural de la surface du polissoir (distribution et dimensions des pores) et par conséquent sur la quantité des abrasifs (en oxyde de cérium) insérée dans les pores, ce qui influe sur la quantité de verre enlevée et sur l'état de surface du composant.
Sur la base des résultats obtenus, il a été prouvé que le polissoir subit des modifications très importantes ce qui influe considérablement sur son efficacité de polissage.

Steady potential solver for unsteady aerodynamic analyses

NASA Technical Reports Server (NTRS)

Hoyniak, Dan

1994-01-01

Development of a steady flow solver for use with LINFLO was the objective of this report. The solver must be compatible with LINFLO, be composed of composite mesh, and have transonic capability. The approaches used were: (1) steady flow potential equations written in nonconservative form; (2) Newton's Method; (3) implicit, least-squares, interpolation method to obtain finite difference equations; and (4) matrix inversion routines from LINFLO. This report was given during the NASA LeRC Workshop on Forced Response in Turbomachinery in August of 1993.

Oxford International Conference on the Mechanical Properties of Materials at High Rates of Strain (4th) Held in Oxford, United Kingdom on 19-22 March 1989

DTIC Science & Technology

1989-03-22

models are used in the computer program EPIC2 to describe the structural response in the cylinder impact test are compared and the differences are...Inc. 8600 Le Salle Road Suite 614, Oxford Building Towson, Maryland 21204 This paper describes the development and application of a computer program ...performed using a dynamic viscoplastic finite element computer program . The resolution of the procedure has been investigated by obtaining replicate

Mise à jour technique sur la physiologie et l'évaluation du liquide amniotique.

PubMed

Lim, Kenneth I; Butt, Kimberly; Naud, Kentia; Smithies, Mila

2017-01-01

RéSULTATS: SOURCES DES DONNéES PROBANTES: Nous avons effectué une recherche sur MEDLINE et Kfinder pour trouver des articles pertinents, puis avons examiné les bibliographies des articles retenus, notamment des revues Cochrane et des articles de revue récents. Les données recueillies ont été analysées par le Comité d'imagerie diagnostique de la Société des obstétriciens et gynécologues du Canada. Les recommandations ont été classées selon les critères établis par le Groupe d'étude canadien sur les soins de santé préventifs (Tableau 1). AVANTAGES, DéSAVANTAGES ET COûTS: En obstétrique moderne, l'évaluation du volume de liquide amniotique par échographie fait partie intégrante de l'évaluation fœtale. Toute anomalie donne lieu à une intervention obstétricale et à des examens approfondis. Au Canada, il n'existe aucune définition normalisée associée à l'estimation du volume de liquide amniotique ni aucune approche d'évaluation uniforme. Plusieurs essais randomisés semblent indiquer que l'évaluation de poche unique, plutôt que de plusieurs poches (indice de liquide amniotique), diminue les interventions obstétricales sans augmenter l'incidence de résultats indésirables. La littérature récente laisse croire que des changements légers, mais détectables du liquide amniotique peuvent survenir une heure ou deux suivant des manœuvres physiologiques normales, ce qui pourrait expliquer la variabilité et le manque de cohérence des résultats d'évaluations répétées en peu de temps et ainsi créer de la confusion et donner lieu à d'autres examens. Le présent article vise à décrire les limites de l'évaluation du volume de liquide amniotique, à promouvoir une méthode d'évaluation normalisée et à proposer un ensemble commun de définitions. DéCLARATIONS SOMMAIRES: RECOMMANDATION. Copyright © 2017. Published by Elsevier Inc.

Density of states, Potts zeros, and Fisher zeros of the Q

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kim, Seung-Yeon; Creswick, Richard J.

2001-06-01

The Q-state Potts model can be extended to noninteger and even complex Q by expressing the partition function in the Fortuin-Kasteleyn (F-K) representation. In the F-K representation the partition function Z(Q,a) is a polynomial in Q and v=a{minus}1 (a=e{sup {beta}J}) and the coefficients of this polynomial, {Phi}(b,c), are the number of graphs on the lattice consisting of b bonds and c connected clusters. We introduce the random-cluster transfer matrix to compute {Phi}(b,c) exactly on finite square lattices with several types of boundary conditions. Given the F-K representation of the partition function we begin by studying the critical Potts model Z{submore » CP}=Z(Q,a{sub c}(Q)), where a{sub c}(Q)=1+{radical}Q. We find a set of zeros in the complex w={radical}Q plane that map to (or close to) the Beraha numbers for real positive Q. We also identify {tilde Q}{sub c}(L), the value of Q for a lattice of width L above which the locus of zeros in the complex p=v/{radical}Q plane lies on the unit circle. By finite-size scaling we find that 1/{tilde Q}{sub c}(L){r_arrow}0 as L{r_arrow}{infinity}. We then study zeros of the antiferromagnetic (AF) Potts model in the complex Q plane and determine Q{sub c}(a), the largest value of Q for a fixed value of a below which there is AF order. We find excellent agreement with Baxter{close_quote}s conjecture Q{sub c}{sup AF}(a)=(1{minus}a)(a+3). We also investigate the locus of zeros of the ferromagnetic Potts model in the complex Q plane and confirm that Q{sub c}{sup FM}(a)=(a{minus}1){sup 2}. We show that the edge singularity in the complex Q plane approaches Q{sub c} as Q{sub c}(L){similar_to}Q{sub c}+AL{sup {minus}y{sub q}}, and determine the scaling exponent y{sub q} for several values of Q. Finally, by finite-size scaling of the Fisher zeros near the antiferromagnetic critical point we determine the thermal exponent y{sub t} as a function of Q in the range 2{le}Q{le}3. Using data for lattices of size 3{le}L{le}8 we find that y{sub t} is a smooth function of Q and is well fitted by y{sub t}=(1+Au+Bu{sup 2})/(C+Du) where u={minus}(2/{pi})cos{sup {minus}1}({radical}Q/2). For Q=3 we find y{sub t}{approx_equal}0.6; however if we include lattices up to L=12 we find y{sub t}{approx_equal}0.50(8) in rough agreement with a recent result of Ferreira and Sokal [J. Stat. Phys. >96, 461 (1999)].« less

Spectral function of a hole in the t - J model

DOE Office of Scientific and Technical Information (OSTI.GOV)

Liu, Z.; Manousakis, E.

1991-08-01

We give numerical solutions, on finite but large-size square lattices, of the equation for the single-hole Green's function obtained by the self-consistent approach of Schmitt-Rink {ital et} {ital al}. and Kane {ital et} {ital al}. The spectral function of the hole in a quantum antiferromagnet shows that most features describing the hole motion are in close agreement with the results of the exact diagonalization on the 4{sup 2} lattice in the region of {ital J}/{ital t}{le}0.2. Our results obtained on sufficiently large-size lattices suggest that certain important features of the spectral function survive in the thermodynamic limit while others changemore » due to finite-size effects. We find that the leading nonzero vertex correction is given by a two-loop diagram, which has a small contribution.« less

Homological dimensions and Van den Bergh isomorphisms for nuclear Fréchet algebras

NASA Astrophysics Data System (ADS)

Pirkovskii, Alexei Yu

2012-08-01

We prove the equation \\operatorname{w{.}dg} A=\\operatorname{w{.}db} A for every nuclear Fréchet-Arens-Michael algebra A of finite weak bidimension, where \\operatorname{w{.}dg} A is the weak global dimension and \\operatorname{w{.}db} A the weak bidimension of A. Assuming that A has a projective bimodule resolution of finite type, we establish the estimate \\operatorname{db}A\\le\\operatorname{dg}A+1, where \\operatorname{dg} A is the global dimension and \\operatorname{db} A the bidimension of A. We also prove that \\operatorname{dg}A=\\operatorname{db}A=\\operatorname{w{.}dg}A=\\operatorname{w{.}db} A=n for all nuclear Fréchet-Arens-Michael algebras satisfying the Van den Bergh conditions \\operatorname{VdB}(n). As an application, we calculate the homological dimensions of smooth and complex-analytic quantum tori.

A modeling study of coastal inundation induced by storm surge, sea-level rise, and subsidence in the Gulf of Mexico

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yang, Zhaoqing; Wang, Taiping; Leung, Lai-Yung R.

The northern coasts of the Gulf of Mexico are highly vulnerable to the direct threats of climate change, such as hurricane-induced storm surge, and such risks can be potentially exacerbated by land subsidence and global sea level rise. This paper presents an application of a coastal storm surge model to study the coastal inundation process induced by tide and storm surge, and its response to the effects of land subsidence and sea level rise in the northern Gulf coast. An unstructured-grid Finite Volume Coastal Ocean Model was used to simulate tides and hurricane-induced storm surges in the Gulf of Mexico.more » Simulated distributions of co-amplitude and co-phase of semi-diurnal and diurnal tides are in good agreement with previous modeling studies. The storm surges induced by four historical hurricanes (Rita, Katrina, Ivan and Dolly) were simulated and compared to observed water levels at National Oceanic and Atmospheric Administration tide stations. Effects of coastal subsidence and future global sea level rise on coastal inundation in the Louisiana coast were evaluated using a parameter “change of inundation depth” through sensitivity simulations that were based on a projected future subsidence scenario and 1-m global sea level rise by the end of the century. Model results suggested that hurricane-induced storm surge height and coastal inundation could be exacerbated by future global sea level rise and subsidence, and that responses of storm surge and coastal inundation to the effects of sea level rise and subsidence are highly nonlinear and vary on temporal and spatial scales.« less

Développement d’un programme multidisciplinaire de diagnostic de l’adrénoleucodystrophie liée à l’X au Maroc: résultats de la mise en œuvre du programme de diagnostic clinique et biologique

PubMed Central

Benjelloun, Fatima-Zohra Madani; Chabraoui, Layachi; Kriouile, Yamna

2017-01-01

Introduction L'adrénoleucodystrophie liée à l'X (X-ALD) est une maladie neurodégénérative sévère, due à des mutations du gène ABCD1. Elle se manifeste par une atteinte du système nerveux central et périphérique, une insuffisance surrénalienne et une atteinte des testicules chez le garçon. Son diagnostic repose sur le dosage des Acides Gras à Très Longue Chaine. Le diagnostic précoce est d'une grande importance puisque il définit l'accessibilité aux traitements selon le stage de la maladie. Méthodes Nous avons mis en place un programme de diagnostic de l'X-ALD au Maroc au niveau de l'Hôpital d'enfants et du Laboratoire centrale des maladies héréditaires et du métabolisme de Rabat. Le programme s'articule sur trois axes à savoir : le recrutement des patients, le diagnostic et la sensibilisation. Le diagnostic s'effectue selon trois protocoles : un protocole pour les cas symptomatiques, un deuxième pour les cas asymptomatiques et un troisième pour les femmes hétérozygotes. Résultats Durant trois ans après la mise en place de notre programme de diagnostic de l'Adrénoleucodystrophie liée à l'X, nous avons diagnostiqué la maladie chez sept familles, avec neuf garçons et trois femmes hétérozygotes. Tous les enfants diagnostiqués présentaient la forme cérébrale démyélinisante. Toutes les femmes hétérozygotes étaient asymptomatiques. Une prise en charge thérapeutique a été mise place selon la symptomatologie de chaque cas. Conclusion l'X-ALD est une maladie rare. Notre programme de diagnostique a permis de diagnostiquer un nombre important de cas, ce qui montre son importance. Les compagnes de sensibilisation auprès des professionnels permettront de mieux comprendre la maladie et mieux la diagnostiquer et ainsi donner accès à un nombre plus élevé de patients. PMID:29599883

Forecasting of Storm Surge Floods Using ADCIRC and Optimized DEMs

NASA Technical Reports Server (NTRS)

Valenti, Elizabeth; Fitzpatrick, Patrick

2005-01-01

Increasing the accuracy of storm surge flood forecasts is essential for improving preparedness for hurricanes and other severe storms and, in particular, for optimizing evacuation scenarios. An interactive database, developed by WorldWinds, Inc., contains atlases of storm surge flood levels for the Louisiana/Mississippi gulf coast region. These atlases were developed to improve forecasting of flooding along the coastline and estuaries and in adjacent inland areas. Storm surge heights depend on a complex interaction of several factors, including: storm size, central minimum pressure, forward speed of motion, bottom topography near the point of landfall, astronomical tides, and most importantly, maximum wind speed. The information in the atlases was generated in over 100 computational simulations, partly by use of a parallel-processing version of the ADvanced CIRCulation (ADCIRC) model. ADCIRC is a nonlinear computational model of hydrodynamics, developed by the U.S. Army Corps of Engineers and the US Navy, as a family of two- and three-dimensional finite element based codes. It affords a capability for simulating tidal circulation and storm surge propagation over very large computational domains, while simultaneously providing high-resolution output in areas of complex shoreline and bathymetry. The ADCIRC finite-element grid for this project covered the Gulf of Mexico and contiguous basins, extending into the deep Atlantic Ocean with progressively higher resolution approaching the study area. The advantage of using ADCIRC over other storm surge models, such as SLOSH, is that input conditions can include all or part of wind stress, tides, wave stress, and river discharge, which serve to make the model output more accurate.

Blasim: A computational tool to assess ice impact damage on engine blades

NASA Astrophysics Data System (ADS)

Reddy, E. S.; Abumeri, G. H.; Chamis, C. C.

1993-04-01

A portable computer called BLASIM was developed at NASA LeRC to assess ice impact damage on aircraft engine blades. In addition to ice impact analyses, the code also contains static, dynamic, resonance margin, and supersonic flutter analysis capabilities. Solid, hollow, superhybrid, and composite blades are supported. An optional preprocessor (input generator) was also developed to interactively generate input for BLASIM. The blade geometry can be defined using a series of airfoils at discrete input stations or by a finite element grid. The code employs a coarse, fixed finite element mesh containing triangular plate finite elements to minimize program execution time. Ice piece is modeled using an equivalent spherical objective that has a high velocity opposite that of the aircraft and parallel to the engine axis. For local impact damage assessment, the impact load is considered as a distributed force acting over a region around the impact point. The average radial strain of the finite elements along the leading edge is used as a measure of the local damage. To estimate damage at the blade root, the impact is treated as an impulse and a combined stress failure criteria is employed. Parametric studies of local and root ice impact damage, and post-impact dynamics are discussed for solid and composite blades.

Méthode de prédétermination des caractéristiques électromagnétiques de machines á bobinage global à commutation de flux. Application à un actionneur linéaire

NASA Astrophysics Data System (ADS)

Prevond, L.; Ben Ahmed, A.; Multon, B.; Lucidarme, J.

1997-06-01

This paper presents a predetermination method of Permanent Magnet (P.M.) multicellular flux switching machines. The non-linear characteristic of the ferromagnetic material is integrated in this method which combines analytical and numerical calculus. This study permits to make a fast parametrical analysis to define optimal parameters of a flux switching cell such as magnetic shear stress and flux concentration factor as function of magnetomotive force. The demagnetisation limit is introduced by a finite element calculus applied. The comparison of the theoritical results and experimental one gives a good correlation. Cet article présente une méthode de prédétermination des caractéristiques de machines multicellulaires (bobinage global) à commutation de flux (aimants permanents) en tenant compte de la non linéarité des matériaux ferromagnétiques. Cette méthode allie le calcul numérique par éléments finis et le calcul analytique. Cette étude nous a permis, d'une part, d'effectuer une analyse paramétrique intrinsèque et, d'autre part, de définir les paramètres optimaux de la cellule à commutation de flux. La notion de désaimantation est introduite en calculant le champ démagnétisant dans l'aimant. Les calculs effectués, dans le cas d'un actionneur linéaire à cômmutation de flux, montrent une bonne corrélation avec les essais directs.

Etude analytique et numérique de la réponse en vibration à hautes fréquences d'éprouvettes de fatigue vibratoire des métaux. Application aux aciers

NASA Astrophysics Data System (ADS)

Ben Aich, A.; El Kihel, B.; Kifani, A.; Sahban, F.

1994-07-01

In the present paper, the so-called " ultrasonic fatigue " or fatigue at very high frequency has been studied in the materials elastic behaviour case while neglecting the thermal effects that influence the mechanical fields. The determination of mechanical fields and specimen resonance length has been done both analytically and numerically. The numerical method used for this calculation is the finite element method (FEM). Martensitic steel " Soleil A2 " and austenitic steel " ICL 472 BC " have been considered in order to compare the two methods (analytical and numerical). It is shown that a perfect convergence is obtained between the two solutions. Dans le présent travail, la fatigue vibratoire a été étudiée dans le cas du comportement élastique des matériaux en négligeant les effets thermiques pouvant influencer les champs mécaniques. La détermination de ces champs et de la longueur de résonance des éprouvettes de fatigue a été faite analytiquement et numériquement. Le calcul numérique effectué se base sur la méthode des éléments finis. Dans le but d'une comparaison des solutions analytiques et numériques, deux aciers ont été considérés : un acier martensitique (Soleil A2) et un acier austénitique de type 18-10 (ICL 472 BC). Une parfaite convergence est obtenue entre les deux solutions.

Vers une réconciliation des théories et de la pratique de l’évaluation, perspectives d’avenir

PubMed Central

Brousselle, Astrid; Champagne, François; Contandriopoulos, André-Pierre

2013-01-01

L’évaluation est un domaine très prolifique, à plusieurs points de vue. Sur le plan théorique, de nouvelles approches s’ajoutent chaque année. La pratique est également en pleine expansion. Cette demande croissante pour des évaluations dans un domaine où les développements théoriques sont très importants crée, paradoxalement, des difficultés quant à la transposition des nouvelles connaissances dans la pratique de l’évaluation. Nous proposons, premièrement, d’illustrer trois grandes difficultés auxquelles est confronté l’évaluateur dans sa pratique : la définition de l’intervention, la considération du changement et les préoccupations pour l’utilisation de l’évaluation. Dans un deuxième temps, nous présenterons les trois principales réponses théoriques que propose le domaine de l’évaluation. Dans un troisième temps, nous discuterons des enjeux de cette interface et des avenues possibles pour favoriser une réconciliation entre la pratique et la théorie de l’évaluation. Cette discussion permettra d’illustrer la tension qui se dessine actuellement entre les questionnements de la pratique et le foisonnement théorique et de présenter les avancées prochaines sur le plan des développements théoriques, vers un rapprochement des préoccupations pratiques des évaluateurs. PMID:23997420

A National-Scale Comparison of Resource and Nutrient Demands for Algae-Based Biofuel Production by Lipid Extraction and Hydrothermal Liquefaction

DOE Office of Scientific and Technical Information (OSTI.GOV)

Venteris, Erik R.; Skaggs, Richard; Wigmosta, Mark S.

Algae’s high productivity provides potential resource advantages over other fuel crops. However, demand for land, water, and nutrients must be minimized to avoid impacts on food production. We apply our national-scale, open-pond, growth and resource models to assess several biomass to fuel technological pathways based on Chlorella. We compare resource demands between hydrothermal liquefaction (HTL) and lipid extraction (LE) to meet 1.89E+10 and 7.95E+10 L yr-1 biofuel targets. We estimate nutrient demands where post-fuel biomass is consumed as co-products and recycling by anaerobic digestion (AD) or catalytic hydrothermal gasification (CHG). Sites are selected through prioritization based on fuel value relativemore » to a set of site-specific resource costs. The highest priority sites are located along the Gulf of Mexico coast, but potential sites exist nationwide. We find that HTL reduces land and freshwater consumption by up to 46% and saline groundwater by around 70%. Without recycling, nitrogen (N) and phosphorous (P) demand is reduced 33%, but is large relative to current U.S. agricultural consumption. The most nutrient-efficient pathways are LE+CHG for N and HTL+CHG for P (by 42%). Resource gains for HTL+CHG are offset by a 344% increase in N consumption relative to LE+CHG (with potential for further recycling). Nutrient recycling is essential to effective use of alternative nutrient sources. Modeling of utilization availability and costs remains, but we find that for HTL+CHG at the 7.95E+10 L yr-1 production target, municipal sources can offset 17% of N and 40% of P demand and animal manures can generally meet demands.« less

The electrostatic persistence length of polymers beyond the OSF limit.

PubMed

Everaers, R; Milchev, A; Yamakov, V

2002-05-01

We use large-scale Monte Carlo simulations to test scaling theories for the electrostatic persistence length l(e) of isolated, uniformly charged polymers with Debye-Hückel intrachain interactions in the limit where the screening length kappa(-1) exceeds the intrinsic persistence length of the chains. Our simulations cover a significantly larger part of the parameter space than previous studies. We observe no significant deviations from the prediction l(e) proportional to kappa(-2) by Khokhlov and Khachaturian which is based on applying the Odijk-Skolnick-Fixman theories of electrostatic bending rigidity and electrostatically excluded volume to the stretched de Gennes-Pincus-Velasco-Brochard polyelectrolyte blob chain. A linear or sublinear dependence of the persistence length on the screening length can be ruled out. We show that previous results pointing into this direction are due to a combination of excluded-volume and finite chain length effects. The paper emphasizes the role of scaling arguments in the development of useful representations for experimental and simulation data.

La prise en charge du pneumothorax spontané: à propos de 138 cas

PubMed Central

Habibi, Bouchra; Achachi, Leila; Hayoun, Sohaib; Raoufi, Mohammed; Herrak, Laila; Ftouh, Mustapha El

2017-01-01

Le pneumothorax est définit par la présence d’air dans la cavité pleurale. L’objectif de notre étude rétrospective du pneumothorax spontanés au servie de pneumologie à l’hôpital Ibn Sina rabat (2009-2011) est de déterminer le profil épidémiologique, clinique, radiologique, thérapeutique et évolutif. Il s’agit de 138 patients: 128 hommes et 10 femmes (17 à 83 ans), un âge moyen de 44,5 +/- 17,4 ans; sexe ratio 12/8. Le tabagisme est noté chez 81,2%. La symptomatologie clinique est la douleur thoracique (92%), la dyspnée (60%). Et sur la radiographie thoracique: on trouve un PNO (pneumothorax) unilatéral total (110 cas); partiel (10 cas); localisé (6 cas); bilatéral (4 cas); à droite dans 51,4% et à gauche dans 45,7%. On a recensé 70% de pneumothorax spontanés primitifs et 30% de PNO secondaire à (BPCO 44%, et tuberculose pulmonaire 39%). La prise en charge initiale est l’hospitalisation de tous les patients : le drainage thoracique (95%), l’exsufflation à l’aiguille (1%). Le repos et l’O2 (4%). Le retour du poumon à la paroi a été obtenu avant 10 jours chez 63%. L’évolution est favorable chez 89%. Et les complications immédiates: l’emphysème sous cutané (5 cas); une infection (6 cas) et 3 décès (arrêt cardio-respiratoire); les complications à distance sont les récidives dans 11,6%; une 1ère récidive chez 13 cas (drainage thoracique chez 11 cas et oxygénothérapie chez 2 cas) et une 2ème récidive chez 3 cas (recours à la chirurgie). Ce travail montre l’intérêt du drainage thoracique et la surveillance dans la prise en charge du pneumothorax pour éviter les complications et surtout pour éviter les récidives avec un éventuel recours à la chirurgie. PMID:28533875

Aménorrhée chimio induite chez une population marocaine: à propos d'une cohorte retrospective

PubMed Central

Brahmi, Sami Aziz; Ziani, Fatima Zahra; Youssef, Seddik; Afqir, Said

2016-01-01

Introduction Le cancer du sein est un des cancers les plus fréquents chez la femme en pré ménopause et son traitement peut compromettre la fertilité. En effet, la chimiothérapie utilisée dans le cancer du sein peut conduire à une aménorrhée transitoire ou permanente chez les femmes non ménopausées. Méthodes Nous avons mené une étude rétrospective au service d'oncologie médicale du CHU Mohammed VI d'Oujda sur une période de 3 ans allant de janvier 2009 à décembre 2011 incluant les patientes jeunes ayant un cancer du sein localisé, pour étudier l'incidence de l'aménorrhée chimio-induite (ACI), ainsi que les facteurs prédictifs intervenant dans sa survenue. Résultats Dans notre série 74% de nos patientes ont présenté une ACI et 33.6% de nos patientes ont présenté une aménorrhée chimio-induite définitive. Plusieurs facteurs ont été étudiés à la recherche d’élément prédictifs de la survenue de l'aménorrhée. Concernant le facteur âge, l'analyse a montré que les femmes avec un âge supérieur à 40 ans étaient plus susceptibles de présenter une aménorrhée que celles avec un âge inférieur à 40 avec un pourcentage de 95,7% versus 56,1% avec une différence significative (p = 0.003). Conclusion L'incidence dans notre étude de l'ACI semble comparable à celle retrouvé dans la littérature, l’âge dans notre étude est le facteur prédictif le plus prédominant dans sa survenue. PMID:27642399

Frequency and origin of G-6-PD deficiency among icteric newborns in the metropolitan area of Monterrey, Nuevo León, Mexico.

PubMed

González-Quiroga, G; Ramirez-Del Rio, J L; Cerda-Flores, R M; Garza-Chapa, R

1994-12-01

829 icteric newborn males were studied in order to have more information about the frequency of the G-6-PD deficiency and its origin in the population of the Monterrey Metropolitan area (MMA), in northeastern Mexico. For each subject information about the maternal grandparents' birthplace (states of Mexico) was gathered. The newborns were grouped into five geographic areas. It was found that the frequency of G-6-PD deficiency is higher in icterics than in normal newborns. The grandparents of the deficient newborns with variant B belonged to the northeastern states of Mexico where more European genetic contribution was present whereas most of the grandparents of the A- deficient newborns were from the gulf coast states, where the genetic contribution was African.

Transportation Lines on the Mississippi River System and the Gulf Intracoastal Waterway; Transportation Series 4; 1980.

DTIC Science & Technology

1982-05-01

MISS. 39180 20 /1W TOWING d FUE.ING CO., INC. P, 0. ox 20 SCOTT OEPOT. W. VA. 25560 32 WALET BARGE RENTALS, I-4C, P. 0. BOX 235 LOC !AUVILLE. LA...lEST 9 AGE. TANK, lOc 264d 264 330 925 11| -3A22 22, 800OS P014 BRIE CITY, 1978ISTE L TE’I rX, WAYNE WEST SoE00 10 24G 26di0 5, 500 11 20, 3627 * DO O...1l20 1200 3O 370 60 20 350 7*, BITS NONE ASBEVIiLE. 1965 1LA. SB 19 DOo -; 14’ * 380 20 - 600 " 44SPUES 00 v3 L976S01 0 300 20 - 350 -, BITOS 30 319e 1

Space geodetic observation of the deformation cycle across the Ballenas Transform, Gulf of California

NASA Astrophysics Data System (ADS)

Plattner, Christina; Malservisi, Rocco; Amelung, Falk; Dixon, Timothy H.; Hackl, Matthias; Verdecchia, Alessandro; Lonsdale, Peter; Suarez-Vidal, Francisco; Gonzalez-Garcia, Javier

2015-08-01

The Gulf of California, Mexico, accommodates ~90% of North America-Pacific plate relative motion. While most of this motion occurs on marine transform faults and spreading centers, several fault segments in the central Gulf come close to peninsular Baja California. Here we present Global Positioning System and interferometric synthetic aperture radar data near the Ballenas transform fault, separating the peninsula from Angel de la Guarda Island. We observe interseismic motion between June 2004 and May 2009 and displacements associated with the 3 August 2009 Mw 6.9 earthquake. From the interseismic data we estimate a locking depth of 9-12.5 km and a slip rate of 44.9-48.1 mm/yr, indicating that faults east of Angel de la Guarda deform at negligible rates and that the Ballenas Transform accommodates virtually all of the relative motion between the North American plate and the Baja California microplate. Our preferred model for coseismic slip on a finite rectangular fault plane suggests 1.3 m of strike-slip displacement along a vertical rupture plane that is 60 km long and extends from the surface to a depth of 13 km in the eastern Ballenas Channel, striking parallel to Baja California-North America relative plate motion. These estimates agree with the seismic moment tensor and the location of the major foreshock and aftershocks and are compatible with the fault location identified from high-resolution bathymetric mapping. The geodetic moment is 33% higher than the seismic moment in part because some afterslip and viscous flow in the first month after the earthquake are included in the geodetic estimate. Coulomb stress changes for adjacent faults in the Gulf are consistent with the location of smaller aftershocks following the 2009 main shock and suggest potential triggering of the 12 April 2012 Mw 6.9 Guaymas earthquake.

Detection de la fin de la compaction des anodes par le son

NASA Astrophysics Data System (ADS)

Sanogo, Bazoumana

L'objectif de ce projet etait de developper un outil de controle en temps reel du temps de compaction en se servant du son genere par le vibrocompacteur pendant le formage des anodes crues. Ainsi, une application a ete developpee pour l'analyse des sons enregistres. Des essais ont ete realises avec differents microphones pour une meilleure qualite des mesures et un a ete choisi pour la suite du projet. De meme, differents tests ont ete realises sur des anodes de laboratoire ainsi que des anodes a l'echelle industrielle afin de mettre en place une methode pour la detection du temps optimal necessaire au formage des anodes. Les travaux au laboratoire de carbone a l'Universite du Quebec a Chicoutimi (UQAC) ont consiste a l'enregistrement de son des anodes fabriquees sur place avec differentes configurations; et a la caracterisation de certaines anodes de l'usine. Les anodes fabriquees au laboratoire sont reparties en deux groupes. Le premier regroupe les anodes pour la validation de notre methode. Ce sont des anodes produites avec des temps de compaction differents. Le laboratoire de carbone a l'UQAC est unique et il est possible de produire des anodes avec les memes proprietes que celles des anodes industrielles. Par consequent, la validation initialement prevue a l'usine a ete effectuee avec les anodes de laboratoire. Le deuxieme groupe a servi a etudier les effets des matieres premieres sur le temps de compaction. Le type de coke et le type de brai ont constitue les differentes variations dans ce deuxieme groupe. Quant aux tests et mesures a l'usine, ils ont ete realises en trois campagnes de mesure. La premiere campagne en juin 2014 a servi a standardiser et a trouver le meilleur positionnement des appareils pour les mesures, a regler le logiciel et a faire les premieres mesures. Une deuxieme campagne en mai 2015 a fait l'objet d'enregistrement de son en classant les anodes selon differents temps de compaction. La troisieme et derniere campagne en decembre 2015 a ete le lieu de tests finaux a l'usine en fabriquant des anodes avec differents criteres (variation du temps de compaction, taux de brai, arret manuel du compacteur, variation de la pression des ballons du haut du compacteur). Ces anodes ont ete ensuite analysees au laboratoire a l'UQAC. En parallele a ces travaux precites, l'amelioration de l'application d'analyse du son a ete faite avec le choix des parametres d'analyse et leur standardisation. Les resultats des premiers tests au laboratoire et ceux de la campagne de juin 2014 ont montre que la formation des anodes se fait suivant trois etapes : rearrangement des particules et du brai, compaction et consolidation et enfin la finition. Ces travaux ont montre en outre que le temps de compaction joue un role tres important dans la definition des proprietes finales des anodes. Ainsi, en plus du type de brai, du taux de brai et du type de coke, il faut tenir compte du temps de sur-compaction et de sous-compaction. En effet, ceci a ete demontre a travers les deux validations qui ont ete realisees. Les resultats de la caracterisation des echantillons (venant des anodes de la campagne de decembre 2015) ont montre qu'une anode compactee a un temps optimal acquiert une bonne resistance a la compression et sa resistivite electrique baisse. En outre, on note que le temps de compaction dans notre cas a baisse legerement avec l'augmentation de la pression des ballons de haut du vibrocompacteur. Ce qui a eu pour effet d'augmenter la densite crue de l'anode. Toutefois, il faut s'abstenir de generaliser ce constat car le nombre d'anodes testees est faible dans notre cas. Par ailleurs, cette etude montre que le temps necessaire pour le formage d'une anode croit avec l'augmentation du taux de brai et baisse legerement avec l'augmentation de la pression des ballons. (Abstract shortened by ProQuest.).

Méthode du second membre modifié pour la gestion de rapports de viscosité importants dans le problème de Stokes bifluide

NASA Astrophysics Data System (ADS)

Bui, Thi Thu Cuc; Frey, Pascal; Maury, Bertrand

2008-06-01

In this Note, we present a method to solve numerically the Stokes equation for the incompressible flow between two immiscible fluids presenting very different viscosities. The resolution of the finite element systems of equations is performed using Uzawa's method. The stiffness matrix conditioning problems related to the very important viscosity ratios are circumvented using an new iterative scheme. A numerical example is proposed to show the efficiency of this approach. To cite this article: T.T.C. Bui et al., C. R. Mecanique 336 (2008).

Rock mechanics evaluation of potential repository sites in the Paradox, Permian, and Gulf Coast Basins: Volume 1

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1987-09-01

Thermal and thermomechanical analyses of a conceptual radioactive waste repository containing commercial and defense high-level wastes and spent fuel have been performing using finite element models. The thermal and thermomechanical responses of the waste package, disposal room, and repository regions were evaluated. four bedded salt formations, in Davis and Lavender Canyons in the Paradox Basin of southeastern Utah and in Deaf Smith and Swisher counties in the Permian Basin of northwestern Texas, and three salt domes, Vacherie Dome in northwestern Louisiana and Richton and Cypress Creek Domes in southeastern Mississippi, located in the Gulf Coast Basin, were examined. In themore » Paradox Basin, the pressure exerted on the waste package overpack was much greater than the initial in situ stress. The disposal room closure was less than 10 percent after 5 years. Surface uplift was nominal, and no significant thermomechanical perturbation of the aquitards was observed. In the Permian Basin, the pressure exerted on the waste package overpack was greater than the initial in situ stress. The disposal room closures were greater than 10 percent in less than 5 years. Surface uplift was nominal, and no significant thermomechanical perturbation of the aquitards was observed. In the Gulf Coast Basin, the pressure exerted on the waste package overpack was greater than the initial in situ stress. The disposal room closures were greater than 10 percent in less than 5 years. No significant thermomechanical perturbation of the overlying geology was observed. 40 refs., 153 figs., 32 tabs.« less

Reappraisal of the Arabia-India-Somalia triple junction kinematics

NASA Astrophysics Data System (ADS)

Fournier, Marc; Patriat, Philippe; Leroy, Sylvie

2001-07-01

We propose alternative kinematics for the Arabia-India-Somalia triple junction based on a re-interpretation of seismological and magnetic data. The new triple junction of the ridge-ridge-ridge type is located at the bend of the Sheba Ridge in the eastern gulf of Aden at 14.5°N and 56.4°E. The Owen fracture zone (Arabia-India boundary) is connected to the Sheba Ridge by an ultra-slow divergent boundary trending N80°E±10° marked by diffuse seismicity. The location of the Arabia-India rotation pole is constrained at 14.1°N and 71.2°E by fitting the active part of the Owen fracture zone with a small circle. The finite kinematics of the triple junction is inferred from the present-day kinematics. Since the inception of the accretion 15-18 Ma ago, the Sheba Ridge has probably receded ∼300 km at the expense of the Carlsberg Ridge which propagated northwestward in the gulf of Aden, while an ultra-slow divergent plate boundary developed between the Arabian and Indian plates. The overall geometry of the new triple junction is very similar to that of the Azores triple junction.

Processing and attenuation of noise in deep seismic-reflection data from the Gulf of Maine

USGS Publications Warehouse

Hutchinson, D.R.; Lee, M.W.

1989-01-01

The U.S. Geological Survey deep crustal studies reflection profile across the Gulf of Maine off southeastern New England was affected by three sources of noise: side-scattered noise, multiples, and 20-Hz whale sounds. The special processing most effective in minimizing this noise consisted of a combination of frequency-wavenumber (F-K) filtering, predictive deconvolution, and spectral whitening, each applied in the shot domain (prestack). Application of the F-K filter to remove side-scatter noise in the poststack domain resulted in a much poorer quality profile. The prestack noise suppression processing techniques resulted in a reflection profile with good signal-to-noise ratios and reliable strong reflections, especially at depths equivalent to the lower crust (24-34 km). Certain geologic features, such as a buried rift basin and a crustal fault are resolved much better within the upper crust after this processing. Finite difference migration of these data using realistic velocities produced excellent results. Migration was essential to distinguish between abundant dipping and subhorizontal reflections in the lower crust as well as to show an essentially transparent upper mantle. ?? 1989 Kluwer Academic Publishers.

Caracterisation experimentale de la transmission acoustique de structures aeronautiques

NASA Astrophysics Data System (ADS)

Pointel, Vincent

Le confort des passagers à l'intérieur des avions pendant le vol est un axe en voie d'amélioration constante. L'augmentation de la proportion des matériaux composites dans la fabrication des structures aéronautiques amène de nouvelles problématiques à résoudre. Le faible amortissement de ces structures, en contre partie de leur poids/raideur faible, est non favorable sur le plan acoustique, ce qui oblige les concepteurs à devoir trouver des moyens d'amélioration. De plus, les mécanismes de transmission du son au travers d'un système double paroi de type aéronautique ne sont pas complètement compris, c'est la raison qui motive cette étude. L'objectif principal de ce projet est de constituer une base de données pour le partenaire industriel de ce projet : Bombardier Aéronautique. En effet, les données expérimentales de performance d'isolation acoustique, de systèmes complets représentatifs d'un fuselage d'avion sont très rares dans la littérature scientifique. C'est pourquoi une méthodologie expérimentale est utilisée dans ce projet. Deux conceptions différentes de fuselage sont comparées. La première possède une peau (partie extérieure du fuselage) métallique raidie, alors que la deuxième est constituée d'un panneau sandwich composite. Dans les deux cas, un panneau de finition de fabrication sandwich est utilisé. Un traitement acoustique en laine de verre est placé à l'intérieur de chacun des fuselages. Des isolateurs vibratoires sont utilisés pour connecter les deux panneaux du fuselage. La simulation en laboratoire de la couche limite turbulente, qui est la source d'excitation prépondérante pendant la phase de vol, n'est pas encore possible hormis en soufflerie. C'est pourquoi deux cas d'excitation sont considérés pour essayer d'approcher cette sollicitation : une excitation mécanique (pot vibrant) et une acoustique (champ diffus). La validation et l'analyse des résultats sont effectuées par le biais des logiciels NOVA et VAONE, utilisés par le partenaire industriel de ce projet. Un des objectifs secondaires est de valider le modèle double paroi implémenté dans NOVA. L'investigation de l'effet de compression local du traitement acoustique, sur la perte par transmission d'une simple paroi, montre que cette action n'a aucun effet bénéfique notable. D'autre part, il apparaît que la raideur des isolateurs vibratoires a un lien direct avec les performances d'isolation du système double paroi. Le système double paroi avec peau composite semble moins sensible à ce paramètre. Le modèle double paroi de NOVA donne de bons résultats concernant le système double paroi avec une peau métallique. Des écarts plus importants sont observés en moyennes et hautes fréquences dans le cas du système avec une peau composite. Cependant, la bonne tendance de la prédiction au vu de la complexité de la structure est plutôt prometteuse. Mots-clés : Expérimental, avion, double paroi, panneaux composites, perte par transmission, transmission aérienne, transmission solidienne, isolateur vibratoire.

Étude théorique et expérimentale du transfert du dioctyl phtalate à partir d'un disque de PVC plastifié plongé dans une huile comestible

NASA Astrophysics Data System (ADS)

Djilani, S.-E.; Toubal, A. A.; Messadi, D.

1998-10-01

When polymer and liquid are contacted with each other, as in packaging, some mass exchanges may occur, which constitute a major drawback when the liquid is a foodstuff or blood. However, these mass transfers in the polymers can appear as very interesting from the industrial point of view, if one is able to use and control them. It is then necessary to have a good knowledge of these transfer processes which are controlled by diffusion. Dioctyl phthalate (DOP) migration into an edible oil was studied under worst conditions: high plasticization level (50% by weight) and temperature(30 circC). The quantitative analysis of DOP in a such complex liquid medium and in the PVC itself was made easy by the use of the radioactive tracer technique. A simplified mathematical model, obtained by neglecting the oil transport in the PVC, was evaluated. This model based on the research of a finite differences explicit solution allows to reproduce for the DOP, the concentration profiles in the polymer and the kinetics of transfer in the oil, with a P-value ≥ 0.001. La mise en contact polymère-liquide se traduit généralement par des échanges de matière entre les 2 milieux considérés, ce qui constitue un inconvénient majeur lorsque le liquide est un aliment ou le sang. Cependant, ces transferts de matière dans les polymères peuvent apparaître comme très intéressants sur le plan industriel, si l'on est capable de les utiliser et de les contrôler. Il est donc nécessaire d'avoir une bonne connaissance de ces processus de transfert qui sont contrôlés par diffusion. Nous avons étudié la migration du dioctyl phtalate (DOP) dans une huile comestible en nous plaçant dans les conditions les plus défavorables: taux de plastification (50% en poids) et température (30°C) élevés. L'analyse quantitative du DOP dans un milieu liquide aussi complexe et dans le PVC lui- même a été facilitée par l'utilisation de la technique des traceurs radioactifs. Un modèle mathématique simplifié en négligeant le transport de l'huile dans la masse de PVC a été testé. Ce modèle basé sur la recherche d'une solution aux différence finies explicite permet au seuil de 0,1% de reproduire pour le DOP, les profils de concentration dans le polymère et les cinétiques de transfert dans l'huile.

Array CGH Analysis and Developmental Delay: A Diagnostic Tool for Neurologists.

PubMed

Cameron, F; Xu, J; Jung, J; Prasad, C

2013-11-01

Developmental delay occurs in 1-3% of the population, with unknown etiology in approximately 50% of cases. Initial genetic work up for developmental delay previously included chromosome analysis and subtelomeric FISH (fluorescent in situ hybridization). Array Comparative Genomic Hybridization (aCGH) has emerged as a tool to detect genetic copy number changes and uniparental disomy and is the most sensitive test in providing etiological diagnosis in developmental delay. aCGH allows for the provision of prognosis and recurrence risks, improves access to resources, helps limit further investigations and may alter medical management in many cases. aCGH has led to the delineation of novel genetic syndromes associated with developmental delay. An illustrative case of a 31-year-old man with long standing global developmental delay and recently diagnosed 4q21 deletion syndrome with a deletion of 20.8 Mb genomic interval is provided. aCGH is now recommended as a first line test in children and adults with undiagnosed developmental delay and congenital anomalies. Puce d'hybridation génomique comparative et retard de développement : un outil diagnostic pour les neurologues. Le retard de développement survient chez 1 à 3% de la population et son étiologie est inconnue chez à peu près 50% des cas. L'évaluation génétique initiale pour un retard de développement incluait antérieurement une analyse chromosomique et une analyse par FISH (hybridation in situ en fluorescence) de régions subtélomériques. La puce d'hybridation génomique comparative (CGHa) est devenue un outil de détection des changements du nombre de copies géniques ainsi que de la disomie uniparentale et elle est le test le plus sensible pour fournir un diagnostic étiologique dans le retard de développement. Le CGHa permet d'offrir un pronostic et un risque de récurrence, améliore l'accès aux ressources, aide à limiter les évaluations et peut modifier le traitement médical dans bien des cas. Le CGHa a mené à la définition de nouveaux syndromes génétiques associés à un retard de développement. À titre d'exemple, nous décrivons le cas d'un homme âgé de 31 ans qui présentait un retard de développement global depuis longtemps et chez qui un syndrome associé à une délétion 4q21 a été diagnostiqué récemment, soit une délétion de 20,8 Mb. Le CGHa est maintenant recommandé comme test de première ligne chez les enfants et les adultes présentant un retard de développement et des anomalies congénitales.

Modélisation par éléments finis 3D du champ magnétostatique dans les enroulements des réactances cuirassées de grande puissance. Comparaison avec le calcul en 2D

NASA Astrophysics Data System (ADS)

Ngnegueu, Triomphant; Terme, Claude; Mailhot, Michel

1993-03-01

In this paper, the finite element method is applied for the computation of the magnetostatic field in the windings of a shell-form reactor. The modeling is carried out in 3D, using FLUX3D, a software developed at the Laboratoire d'Electrotechnique de Grenoble. The results are compared to those obtained in 2D. These calculation results are also compared to some test results. Dans cet article, nous décrivons une application de la méthode des éléments finis pour la modélisation du champ magnétostatique dans les enroulements d'une réactance cuirassée de grande puissance. La modélisation est conduite en 3D, en utilisant le logiciel FLUX3D. Les résultats du calcul sont comparés avec ceux obtenus en 2D. Quelques comparaisons sont aussi effectuées avec des résultats de mesure.

La prévention des blessures chez les enfants et les adolescents : une démarche de santé publique

PubMed Central

Yanchar, Natalie L; Warda, Lynne J; Fuselli, Pamela

2012-01-01

RÉSUMÉ La majorité des blessures dont sont victimes les enfants et les adolescents sont évitables. Le présent document de principes contient des renseignements généraux, des conseils et une déclaration d’engagement à l’égard de la prévention des blessures au Canada. Il sert de base sur laquelle construire en s’attardant d’abord aux définitions, à l’étendue et aux priorités en matière de prévention des blessures. Il contient également une description du fardeau et du profil des blessures non intentionnelles, de même que les principes d’interventions de prévention efficaces. La version intégrale renferme une liste de ressources en vue d’obtenir des données et de l’information probante (www.cps.ca). Enfin, le présent document de principes peut être utilisé pour la défense généralisée de la prévention des blessures.

Numerical analysis of spin-orbit-coupled one-dimensional Fermi gas in a magnetic field

NASA Astrophysics Data System (ADS)

Chan, Y. H.

2015-06-01

Based on the density-matrix renormalization group and the infinite time-evolving block decimation methods we study the interacting spin-orbit-coupled 1D Fermi gas in a transverse magnetic field. We find that the system with an attractive interaction can have a polarized insulator phase, a superconducting (SC) phase, a Luther-Emery (LE) phase, and a band insulator phase as we vary the chemical potential and the strength of the magnetic field. Spin-orbit coupling (SOC) enhances the triplet pairing order at zero momentum in both the SC and the LE phase, which leads to an algebraically decaying correlation with the same exponent as that of the singlet pairing one. In contrast to the Fulde-Ferrell-Larkin-Ovchinnikov phase found in the spin imbalanced system without SOC, pairings at finite momentum in these two phases have larger exponents hence do not dictate the long-range behavior. We also test for the presence of Majorana fermions in this system. Unlike results from the mean-field study, we do not find positive evidence of Majorana fermions.

Seismic imaging using finite-differences and parallel computers

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ober, C.C.

1997-12-31

A key to reducing the risks and costs of associated with oil and gas exploration is the fast, accurate imaging of complex geologies, such as salt domes in the Gulf of Mexico and overthrust regions in US onshore regions. Prestack depth migration generally yields the most accurate images, and one approach to this is to solve the scalar wave equation using finite differences. As part of an ongoing ACTI project funded by the US Department of Energy, a finite difference, 3-D prestack, depth migration code has been developed. The goal of this work is to demonstrate that massively parallel computersmore » can be used efficiently for seismic imaging, and that sufficient computing power exists (or soon will exist) to make finite difference, prestack, depth migration practical for oil and gas exploration. Several problems had to be addressed to get an efficient code for the Intel Paragon. These include efficient I/O, efficient parallel tridiagonal solves, and high single-node performance. Furthermore, to provide portable code the author has been restricted to the use of high-level programming languages (C and Fortran) and interprocessor communications using MPI. He has been using the SUNMOS operating system, which has affected many of his programming decisions. He will present images created from two verification datasets (the Marmousi Model and the SEG/EAEG 3D Salt Model). Also, he will show recent images from real datasets, and point out locations of improved imaging. Finally, he will discuss areas of current research which will hopefully improve the image quality and reduce computational costs.« less

Connections between centrifugal, stratorotational, and radiative instabilities in viscous Taylor-Couette flow

NASA Astrophysics Data System (ADS)

Leclercq, Colin; Nguyen, Florian; Kerswell, Rich R.

2016-10-01

The "Rayleigh line" μ =η2 , where μ =Ωo/Ωi and η =ri/ro are respectively the rotation and radius ratios between inner (subscript i ) and outer (subscript o ) cylinders, is regarded as marking the limit of centrifugal instability (CI) in unstratified inviscid Taylor-Couette flow, for both axisymmetric and nonaxisymmetric modes. Nonaxisymmetric stratorotational instability (SRI) is known to set in for anticyclonic rotation ratios beyond that line, i.e., η2<μ <1 for axially stably stratified Taylor-Couette flow, but the competition between CI and SRI in the range μ <η2 has not yet been addressed. In this paper, we establish continuous connections between the two instabilities at finite Reynolds number Re, as previously suggested by Le Bars and Le Gal [Phys. Rev. Lett. 99, 064502 (2007), 10.1103/PhysRevLett.99.064502], making them indistinguishable at onset. Both instabilities are also continuously connected to the radiative instability at finite Re. These results demonstrate the complex impact viscosity has on the linear stability properties of this flow. Several other qualitative differences with inviscid theory were found, among which are the instability of a nonaxisymmetric mode localized at the outer cylinder without stratification and the instability of a mode propagating against the inner cylinder rotation with stratification. The combination of viscosity and stratification can also lead to a "collision" between (axisymmetric) Taylor vortex branches, causing the axisymmetric oscillatory state already observed in past experiments. Perhaps more surprising is the instability of a centrifugal-like helical mode beyond the Rayleigh line, caused by the joint effects of stratification and viscosity. The threshold μ =η2 seems to remain, however, an impassable instability limit for axisymmetric modes, regardless of stratification, viscosity, and even disturbance amplitude.

Eddington limit for a gaseous stratus with finite optical depth

NASA Astrophysics Data System (ADS)

Fukue, Jun

2015-06-01

The Eddington luminosity of a spherical source is usually defined for a uniformly extending normal plasma. We usually suppose that the gas can accrete to the central object at the sub-Eddington luminosity, while it would be blown off from the central luminous source in the super-Eddington case. We reconsider this central dogma of the Eddington limit under the radiative transfer effect for the purely scattering case, using analytical and numerical methods. For the translucent isolated gas cloud (stratus) with finite optical depth, the concept of the Eddington luminosity is drastically changed. In an heuristic way, we find that the critical condition is approximately expressed as Γ = (1 + μ* + τc)/2, where Γ (=L/LE) is the central luminosity L normalized by the Eddington luminosity LE, τc is the optical depth of the stratus, and μ* (=√{1-R_*^2/R^2}) is the direction cosine of the central object, R* being the radius of the central object, and R the distance from the central object. When the optical depth of the stratus is around unity, the classical Eddington limit roughly holds for the stratus; Γ ˜ 1. However, when the optical depth is greater than unity, the critical condition becomes roughly Γ ˜ τc/2, and the stratus would infall on to the central source even at the highly super-Eddington luminosity. When the optical depth is less than unity, on the other hand, the critical condition reduces to Γ ≳ (1 + μ*)/2, and the stratus could be blown off in some limited ranges, depending on μ*. This new concept of the Eddington limit for the isolated stratus could drastically change the accretion and outflow physics of highly inhomegeneous plasmas, with relevance for astrophysical jets and winds and supermassive black hole formation.

Solidification of a binary alloy: Finite-element, single-domain simulation and new benchmark solutions

NASA Astrophysics Data System (ADS)

Le Bars, Michael; Worster, M. Grae

2006-07-01

A finite-element simulation of binary alloy solidification based on a single-domain formulation is presented and tested. Resolution of phase change is first checked by comparison with the analytical results of Worster [M.G. Worster, Solidification of an alloy from a cooled boundary, J. Fluid Mech. 167 (1986) 481-501] for purely diffusive solidification. Fluid dynamical processes without phase change are then tested by comparison with previous numerical studies of thermal convection in a pure fluid [G. de Vahl Davis, Natural convection of air in a square cavity: a bench mark numerical solution, Int. J. Numer. Meth. Fluids 3 (1983) 249-264; D.A. Mayne, A.S. Usmani, M. Crapper, h-adaptive finite element solution of high Rayleigh number thermally driven cavity problem, Int. J. Numer. Meth. Heat Fluid Flow 10 (2000) 598-615; D.C. Wan, B.S.V. Patnaik, G.W. Wei, A new benchmark quality solution for the buoyancy driven cavity by discrete singular convolution, Numer. Heat Transf. 40 (2001) 199-228], in a porous medium with a constant porosity [G. Lauriat, V. Prasad, Non-darcian effects on natural convection in a vertical porous enclosure, Int. J. Heat Mass Transf. 32 (1989) 2135-2148; P. Nithiarasu, K.N. Seetharamu, T. Sundararajan, Natural convective heat transfer in an enclosure filled with fluid saturated variable porosity medium, Int. J. Heat Mass Transf. 40 (1997) 3955-3967] and in a mixed liquid-porous medium with a spatially variable porosity [P. Nithiarasu, K.N. Seetharamu, T. Sundararajan, Natural convective heat transfer in an enclosure filled with fluid saturated variable porosity medium, Int. J. Heat Mass Transf. 40 (1997) 3955-3967; N. Zabaras, D. Samanta, A stabilized volume-averaging finite element method for flow in porous media and binary alloy solidification processes, Int. J. Numer. Meth. Eng. 60 (2004) 1103-1138]. Finally, new benchmark solutions for simultaneous flow through both fluid and porous domains and for convective solidification processes are presented, based on the similarity solutions in corner-flow geometries recently obtained by Le Bars and Worster [M. Le Bars, M.G. Worster, Interfacial conditions between a pure fluid and a porous medium: implications for binary alloy solidification, J. Fluid Mech. (in press)]. Good agreement is found for all tests, hence validating our physical and numerical methods. More generally, the computations presented here could now be considered as standard and reliable analytical benchmarks for numerical simulations, specifically and independently testing the different processes underlying binary alloy solidification.

A New Mixing Diagnostic and Gulf Oil Spill Movement

NASA Astrophysics Data System (ADS)

Mezić, Igor; Loire, S.; Fonoberov, Vladimir A.; Hogan, P.

2010-10-01

Chaotic advection has served as the paradigm for mixing in fluid flows with simple time dependence. Its skeletal structure is based on analysis of invariant attracting and repelling manifolds in fluid flows. Here we develop a finite-time theory for two-dimensional incompressible fluid flows with arbitrary time dependence and introduce a new mixing diagnostic based on it. Besides stretching events around attracting and repelling manifolds, this allows us to detect hyperbolic mixing zones. We used the new diagnostic to forecast the spatial location and timing of oil washing ashore in Plaquemines Parish and Grand Isle, Louisiana, and Pensacola, Florida, in May 2010 and the flow of oil toward Panama City Beach, Florida, in June 2010.

Anomalous dielectric relaxation in lithium-potassium tantalate crystals

NASA Astrophysics Data System (ADS)

Doussineau, P.; Farssi, Y.; Frénois, C.; Levelut, A.; Toulouse, J.; Ziolkiewicz, S.

1994-08-01

In order to describe the unusual dielectric properties observed in Ki{1-χ}Li{χ}TaO3. crystals a new approchh is proposed. The dynamical Glauber theory, previously applied to spinglasses, is modifiéd by the introduction of the spectral distribution of the random interactions between the dipoles associated with the Li+ ions. Moreover, the dipole corrélations are taken into account by the Onsager réaction field. As a result, the calculated dielectric constant reproduces well the unusual features of the Argand diagrams and, in particular, their finite slope at low frequencies and infinite slope at high frequencies (strophoidal shape). The temperature dépendance of some parameters shows, however, the limits of a spin-glass type model in describing the collective behaviour of randomly distributed dipoles in a highly polarizable medium. Une nouvelle approche est présentée qui permet de décrire les propriétés diélectriques particulières de cristaux mixtes de Ki{1-χ}Li{χ}TaO3. Elle s'appuie sur la théorie dynamique de Glauber, déjà utilisée pour les verres de spins, et modifiée par l'introduction d'une distribution spectrale spécifique aux interactions aléatoires des dipôles électriques associés aux ions Li+. En outre, les corrélations entre dipôles sont prises en compte par le champ de réaction d'Onsager. II s'ensuit que la constante diélectrique complexe ainsi calculée reproduit fidèlement les particularités des diagrammes d'Argand, telles que la pente finie aux basses fréquences et la pente infinie aux hautes fréquences (forme strophoïdale). La dépendance en température de certains paramètres déterminés par le calcul montre les limites de l'analogie avec les verres de spins et met en évidence le rôle d'un réseau très polarisable dans le comportement collectif d'une assemblée de dipôles électriques.

PCB modeling in the Gulf of Lions using a 3D coupled model

NASA Astrophysics Data System (ADS)

Alekseenko, Elena; Thouvenin, Bénédicte; Tixier, Céline; Tronczynski, Jacek; Garreau, Pierre; Verney, Romaric; Carlotti, Francois; Espinasse, Boris; Queguiner, Bernard; Baklouti, Melika

2013-04-01

Polychlorobiphenyls (PCBs) are synthetic chlorinated organic compounds, which were widely used in many industrial materials. These compounds are persistent, bioaccumulable and toxic for living organisms. The riverine and atmospheric fluxes are the major routes of entry for these chemicals into marine ecosystems, where they are now embedded in natural biogeochemical cycles (Lohmann et al. 2007). Because of bioaccumulation and biomagnification processes in food webs, even nowadays, these compounds may attain dangerous concentration levels especially in the top predators including marine mammals. The contamination of marine biota by PCBs in Mediterranean has also become a matter of concern as the concentrations in some species are at levels putting them at risk for significant biological effects. This may pose potential human health risks in commercial edible species (Carpenter 2006). Planktonic populations play a key role in the trophic food webs in marine ecosystems by the mobilisation and transfer of energy and organic matter towards higher trophic levels. This work aims at a better understanding of the role of plankton in the transfer of PCBs to higher trophic levels in the Gulf of Lions (Mediterranean) by coupling of biogeochemical, ecological and hydrodynamical processes. Modeling is a powerful tool for coupling processes of different disciplines and scales. The recent development of 3D hydrodynamic, hydrosedimentary and biogeochemical models in the Mediterranean (André et al, 2005,2009, Ulses et al, 2008, Dufois et al, 2008, Auger et al, 2011), enables feasibility testing of coupling these models with transfer processes of chemical contaminants. The lack of detailed observations in the sea and the significant uncertainty on contaminants inputs prevent from a proper validation of such modeling tests. However, these tools are very useful to assess the influence of fast processes on the transfer of contaminants to bioaccumulative species. Sensitivity analysis also enables to identify key parameters and assumptions which control contamination pathways in the Gulf of Lions. Thus, this work is based on coupling such complex biogeochemical model (Eco3M), with a PCBs transport model and a model of hydrodynamics (MARS3D) in order to test a scientific exploration tool for the assessment of PCB dispersion in space and time in the Gulf of Lion and of their transfer to zooplankton via biogeochemical processes. In this work we estimate PCB budgets and fluxes into the Gulf of Lions between the different species of PCB, namely: dissolved total, available dissolved, particulate, biosorbed on plankton, assimilated by zooplankton, which are governed by different processes, such as: adsorption/desorption (equilibrium partitioning), bacteria and plankton mortality, zooplankton excretion, grazing, mineralization, volatilization. References Auger P.A., Diaz F., Ulses C., Estornel C., Neveux J., Joux F., Pujo-Pay M. and Naudin J.J., 2011. Functioning of the planktonic ecosystem on the Gulf of Lions shelf (NW Mediterranean) during spring and its impact on the carbon deposition: a field data and 3-D modeling combined approach. Biogeosciences, 8, 3231-3261. André, G., Garreau, P., Garnier, V. and Fraunié, P., 2005. Modeled variability of the sea surface circulation in the North-western Mediterranean Sea and in the Gulf of Lions. Ocean Dynamics, 55, 294-308. Andre, G., Garreau, P., Fraune, P.,2009. Mesoscale slope current variability in the Gulf of Lions. Interpretation of in-situ measurements using a three-dimentional model. Continental Shelf Research, 2, 407-423. Carpenter, D.O., 2006. Polychlorinated biphenyls (PCBs): Routes of exposure and effects on human health. Rev. Environ. Health, 21, 1-23. Dufois F., Garreau P., Le Hir P., Forget P., 2008. Wave- and current-induced bottom shear stress distribution in the Gulf of Lions. Continental Shelf Research, 28(15), 1920-1934. Lohmann, R.;Breivik, K.; Dachs, J.; Muir, D., 2007. Global fate of POPs: Current and future research directions. Environmental Pollution 150: 150-165. Ulses C., Estournel C., Durrieu de Madron X., Palanques A., 2008. Suspended sediment transport in the Gulf of Lions (NW Mediterranean): Impact of extreme storms and floods. Continental Shelf Research, 28(15), 30 August 2008, 2048-2070.

Generation of deterministic tsunami hazard maps in the Bay of Cadiz, south-west Spain

NASA Astrophysics Data System (ADS)

Álvarez-Gómez, J. A.; Otero, L.; Olabarrieta, M.; González, M.; Carreño, E.; Baptista, M. A.; Miranda, J. M.; Medina, R.; Lima, V.

2009-04-01

The bay of Cádiz is a densely populated and industrialized area, and an important centre of tourism which multiplies its population in the summer months. This bay is situated in the Gulf of Cádiz, the south-west Atlantic margin of the Iberian Peninsula. From a tectonic point of view this area can be defined as a diffuse plate boundary, comprising the eastern edge of the Gloria and Tydeman transforms (where the deformation is mainly concentrated in these shear corridors), the Gorringe Bank, the Horseshoe Abyssal plain, the Portimao and Guadalquivir banks, and the western termination of the arcuated Gibraltar Arc. This deformation zone is the eastern edge of the Azores - Gibraltar seismic zone, being the present day boundary between the Eurasian and African plates. The motion between the plates is mainly convergent in the Gulf of Cádiz, but gradually changes to almost pure transcurrent along the Gloria Fault. The relative motion between the two plates is of the order of 4-5 mm/yr. In order to define the different tsunamigenic zones and to characterize its worst tsunamigenic source we have used seismic, structural and geological data. The numerical model used to simulate the wave propagation and coastal inundation is the C3 (Cantabria, COMCOT and Tsunami-Claw) model. C3 is a hybrid finite difference-finite volume method which balances between efficiency and accuracy. For offshore domain in deep waters the model applies an explicit finite difference scheme (FD), which is computationally fast and accurate in large grids. For near coast domains in coastal areas, it applies a finite volume scheme (VOF). It solves correctly the bore formation and the bore propagation. It is very effective solving the run-up and the run down. A set of five worst case tsunamigenic sources has been used with four different sea levels (minimum tide, most probable low tide, most probable high tide and maximum tide), in order to produce the following thematic maps with the C3 model: maximum free surface elevation, maximum water depth, maximum current speed, maximum Froude number and maximum impact forces (hydrostatic and dynamic forces). The fault rupture and sea bottom displacement has been computed by means of the Okada equations. As result, a set of more than 100 deterministic thematic maps have been created in a GIS environment incorporating geographical data and high resolution orthorectified satellite images. These thematic maps form an atlas of inundation maps that will be distributed to different government authorities and civil protection and emergency agencies. The authors gratefully acknowledge the financial support provided by the EU under the frame of the European Project TRANSFER (Tsunami Risk And Strategies For the European Region), 6th Framework Programme.

Joint min-max distribution and Edwards-Anderson's order parameter of the circular 1/f-noise model

NASA Astrophysics Data System (ADS)

Cao, Xiangyu; Le Doussal, Pierre

2016-05-01

We calculate the joint min-max distribution and the Edwards-Anderson's order parameter for the circular model of 1/f-noise. Both quantities, as well as generalisations, are obtained exactly by combining the freezing-duality conjecture and Jack-polynomial techniques. Numerical checks come with significantly improved control of finite-size effects in the glassy phase, and the results convincingly validate the freezing-duality conjecture. Application to diffusive dynamics is discussed. We also provide a formula for the pre-factor ratio of the joint/marginal Carpentier-Le Doussal tail for minimum/maximum which applies to any logarithmic random energy model.

Stochastic Seismic Inversion and Migration for Offshore Site Investigation in the Northern Gulf of Mexico

NASA Astrophysics Data System (ADS)

Son, J.; Medina-Cetina, Z.

2017-12-01

We discuss the comparison between deterministic and stochastic optimization approaches to the nonlinear geophysical full-waveform inverse problem, based on the seismic survey data from Mississippi Canyon in the Northern Gulf of Mexico. Since the subsea engineering and offshore construction projects actively require reliable ground models from various site investigations, the primary goal of this study is to reconstruct the accurate subsurface information of the soil and rock material profiles under the seafloor. The shallow sediment layers have naturally formed heterogeneous formations which may cause unwanted marine landslides or foundation failures of underwater infrastructure. We chose the quasi-Newton and simulated annealing as deterministic and stochastic optimization algorithms respectively. Seismic forward modeling based on finite difference method with absorbing boundary condition implements the iterative simulations in the inverse modeling. We briefly report on numerical experiments using a synthetic data as an offshore ground model which contains shallow artificial target profiles of geomaterials under the seafloor. We apply the seismic migration processing and generate Voronoi tessellation on two-dimensional space-domain to improve the computational efficiency of the imaging stratigraphical velocity model reconstruction. We then report on the detail of a field data implementation, which shows the complex geologic structures in the Northern Gulf of Mexico. Lastly, we compare the new inverted image of subsurface site profiles in the space-domain with the previously processed seismic image in the time-domain at the same location. Overall, stochastic optimization for seismic inversion with migration and Voronoi tessellation show significant promise to improve the subsurface imaging of ground models and improve the computational efficiency required for the full waveform inversion. We anticipate that by improving the inversion process of shallow layers from geophysical data will better support the offshore site investigation.

Wind driven general circulation of the Mediterranean Sea simulated with a Spectral Element Ocean Model

NASA Astrophysics Data System (ADS)

Molcard, A.; Pinardi, N.; Iskandarani, M.; Haidvogel, D. B.

2002-05-01

This work is an attempt to simulate the Mediterranean Sea general circulation with a Spectral Finite Element Model. This numerical technique associates the geometrical flexibility of the finite elements for the proper coastline definition with the precision offered by spectral methods. The model is reduced gravity and we study the wind-driven ocean response in order to explain the large scale sub-basin gyres and their variability. The study period goes from January 1987 to December 1993 and two forcing data sets are used. The effect of wind variability in space and time is analyzed and the relationship between wind stress curl and ocean response is stressed. Some of the main permanent structures of the general circulation (Gulf of Lions cyclonic gyre, Rhodes gyre, Gulf of Syrte anticylone) are shown to be induced by permanent wind stress curl structures. The magnitude and spatial variability of the wind is important in determining the appearance or disappearance of some gyres (Tyrrhenian anticyclonic gyre, Balearic anticyclonic gyre, Ionian cyclonic gyre). An EOF analysis of the seasonal variability indicates that the weakening and strengthening of the Levantine basin boundary currents is a major component of the seasonal cycle in the basin. The important discovery is that seasonal and interannual variability peak at the same spatial scales in the ocean response and that the interannual variability includes the change in amplitude and phase of the seasonal cycle in the sub-basin scale gyres and boundary currents. The Coriolis term in the vorticity balance seems to be responsible for the weakening of anticyclonic structures and their total disappearance when they are close to a boundary. The process of adjustment to winds produces a train of coastally trapped gravity waves which travel around the eastern and western basins, respectively in approximately 6 months. This corresponds to a phase velocity for the wave of about 1 m/s, comparable to an average velocity of an internal Kelvin wave in the area.

Mesoscale eddies in the Gulf of Aden and their impact on the spreading of Red Sea Outflow Water

NASA Astrophysics Data System (ADS)

Bower, Amy S.; Furey, Heather H.

2012-04-01

The Gulf of Aden (GOA) in the northwestern Indian Ocean is the receiving basin for Red Sea Outflow Water (RSOW), one of the World’s few high-salinity dense overflows, but relatively little is known about spreading pathways and transformation of RSOW through the gulf. Here we combine historical data, satellite altimetry, new synoptic hydrographic surveys and the first in situ direct observations of subsurface currents in the GOA to identify the most important processes in the spreading of RSOW. The new in situ data sets were collected in 2001-2003 as part of the Red Sea Outflow Experiment (REDSOX) and consist of two CTD/LADCP Surveys and 49 one-year trajectories from acoustically tracked floats released at the depth of RSOW. The results indicate that the prominent positive and negative sea level anomalies frequently observed in the GOA with satellite altimetry are associated with anticyclonic and cyclonic eddies that often reach to at least 1000 m depth, i.e., through the depth range of equilibrated RSOW. The eddies dominate RSOW spreading pathways and help to rapidly mix the outflow water with the background. Eddies in the central and eastern gulf are basin-scale (∼250-km diameter) and have maximum azimuthal speeds of about 30 cm/s at the RSOW level. In the western gulf, smaller eddies not detectable with satellite altimetry appear to form as the larger westward-propagating eddies impale themselves on the high ridges flanking the Tadjura Rift. Both the hydrographic and Lagrangian observations show that eddies originating outside the gulf often transport a core of much cooler, fresher water from the Arabian Sea all the way to the western end of the GOA, where the highest-salinity outflow water is found. This generates large vertical and horizontal gradients of temperature and salinity, setting up favorable conditions for salt fingering and diffusive convection. Both of these mixing processes were observed to be active in the gulf. Two new annually appearing anticyclonic eddies are added to the previously identified Gulf of Aden Eddy (GAE; Prasad and Ikeda, 2001) and Somali Current Ring (SCR; Fratantoni et al., 2006). These are the Summer Eddy (SE) and the Lee Eddy (LE), both of which form at the beginning of the summer monsoon when strong southwest winds blowing through Socotra Passage effectively split the GAE into two smaller eddies. The SE strengthens as it propagates westward deeper in the GOA, while the Lee Eddy remains stationary in the lee of Socotra Island. Both eddies are strengthened or sustained by Ekman convergence associated with negative wind stress curl patches caused by wind jets through or around high orography. The annual cycle in the appearance, propagation and demise of these new eddies and those described in earlier work is documented to provide a comprehensive view of the most energetic circulation features in the GOA. The observations contain little evidence of features that have been shown previously to be important in the spreading of Mediterranean Outflow Water (MOW) in the North Atlantic, namely a wall-bounded subsurface jet (the Mediterranean Undercurrent) and submesoscale coherent lenses containing a core of MOW (‘meddies’). This is attributed to the fact that the RSOW enters the open ocean on a western boundary. High background eddy kinetic energy typical of western boundary regimes will tend to shear apart submesoscale eddies and boundary undercurrents. Even if a submesoscale lens of RSOW did form in the GOA, westward self-propagation would transport the eddy and its cargo of outflow water back toward, rather than away from, its source.

Acoustic resonances of fluid-immersed elastic cylinders and spheroids: Theory and experiment

NASA Astrophysics Data System (ADS)

Niemiec, Jan; Überall, Herbert; Bao, X. L.

2002-05-01

Frequency resonances in the scattering of acoustic waves from a target object are caused by the phase matching of surface waves repeatedly encircling the object. This is exemplified here by considering elastic finite cylinders and spheroids, and the phase-matching condition provides a means of calculating the complex resonance frequencies of such objects. Tank experiments carried out at Catholic University, or at the University of Le Havre, France by G. Maze and J. Ripoche, have been interpreted using this approach. The experiments employed sound pulses to measure arrival times, which allowed identification of the surface paths taken by the surface waves, thus giving rise to resonances in the scattering amplitude. A calculation of the resonance frequencies using the T-matrix approach showed satisfactory agreement with the experimental resonance frequencies that were either measured directly (as at Le Havre), or that were obtained by the interpretation of measured arrival times (at Catholic University) using calculated surface wave paths, and the extraction of resonance frequencies therefrom, on the basis of the phase-matching condition. Results for hemispherically endcapped, evacuated steel cylinders obtained in a lake experiment carried out by the NSWC were interpreted in the same fashion.

Integration of numerical modeling and observations for the Gulf of Naples monitoring network

NASA Astrophysics Data System (ADS)

Iermano, I.; Uttieri, M.; Zambianchi, E.; Buonocore, B.; Cianelli, D.; Falco, P.; Zambardino, G.

2012-04-01

Lethal effects of mineral oils on fragile marine and coastal ecosystems are now well known. Risks and damages caused by a maritime accident can be reduced with the help of better forecasts and efficient monitoring systems. The MED project TOSCA (Tracking Oil Spills and Coastal Awareness Network), which gathers 13 partners from 4 Mediterranean countries, has been designed to help create a better response system to maritime accidents. Through the construction of an observational network, based on state of the art technology (HF radars and drifters), TOSCA provides real-time observations and forecasts of the Mediterranean coastal marine environmental conditions. The system is installed and assessed in five test sites on the coastal areas of oil spill outlets (Eastern Mediterranean) and on high traffic areas (Western Mediterranean). The Gulf of Naples, a small semi-closed basin opening to the Tyrrhenian Sea is one of the five test-sites. It is of particular interest from both the environmental point of view, due to peculiar ecosystem properties in the area, and because it sustains important touristic and commercial activities. Currently the Gulf of Naples monitoring network is represented by five automatic weather stations distributed along the coasts of the Gulf, one weather radar, two tide gauges, one waverider buoy, and moored physical, chemical and bio-optical instrumentation. In addition, a CODAR-SeaSonde HF coastal radar system composed of three antennas is located in Portici, Massa Lubrense and Castellammare. The system provides hourly data of surface currents over the entire Gulf with a 1km spatial resolution. A numerical modeling implementation based on Regional Ocean Modeling System (ROMS) is actually integrated in the Gulf of Naples monitoring network. ROMS is a 3-D, free-surface, hydrostatic, primitive equation, finite difference ocean model. In our configuration, the model has high horizontal resolution (250m), and 30 sigma levels in the vertical. Thanks to the cooperation of the Ocean Physics and Modeling Group and of the Atmospheric Modeling and Weather Forecasting Group of the University of Athens (partner of TOSCA project), the model surface air-sea fluxes are computed from the SKIRON Forecasting System. ROMS model is initialized with the High Resolution Atlantic and Mediterranean Product of Mercator Ocean data set and the same data are used as boundary conditions for the western and southern open boundaries of the domain. Realistic model simulations have been performed in the study area for the summer of 2009, in order to make comparisons with specific episodes and structures identified by HF radar data. Typical circulation regimes have been selected from the mentioned year simulation and different flow structures are recognized, that are expected to have a significant effect on the renewal of the coastal waters. The model allows us to further investigate the spatial characteristics of dynamical structures, their generation process and their role in the flushing of the basin improving the understanding of the dynamics governing the circulation of the basin. Model results show a good agreement with HF radar data collected during the analyzed periods in the Gulf of Naples.

Energy levels and exchange interactions of spin clusters

NASA Astrophysics Data System (ADS)

Belorizky, E.

1993-02-01

We first describe a simple method for diagonalizing the isotropic exchange Hamiltonian of a cluster of N spins in the most general case where all the exchange constants are different. The technique, based on the rotation invariance of the system, leads to a considerable reduction of the total matrix. Simple expressions of the magnetization and susceptibility are provided and an example of the determination of the exchange constants of a complex with five Cu^{2+} ions is given. It is also shown that for a large variety of spin configurations occuring in metal complexes, it is possible to diagonalize the dominant isotropic exchange spin hamiltonian in a straightforward way by using recoupling techniques. This allows to solve problems up to a nine spin cluster with spins having different g values. This survey is pursued by the theoretical approach of the magnetic properties of interacting spins on a finite ring with a detailed study of an oligonuclear metal nitroxide complex formed by six Mn^{2+}(S = 5/2) and six free radicals (s = 1/2). The temperature behaviour of the susceptibility is interpreted with a semi-classical model of a cyclic alternate finite chain. Finally we give a procedure for determining the three exchange constants of three spin 1/2 coupled by isotropic exchange constants in the unsolved case where these constants are all dilferent. Nous décrivons d'abord une méthode simple pour diagonaliser l'Hamiltonien d'échange isotrope d'un cluster de N spins dans le cas le plus général où toutes les constantes d'échange sont différentes. La technique, basée sur l'invariance rotationnelle du système, conduit à une réduction considérable de la matrice totale. On donne des expressions simples de l'aimantation et de la susceptibilité et la méthode est appliquée à la détermination des interactions d'échange d'un complexe comprenant cinq ions Cu^{2+}. On montre également que pour une assez grande variété de configurations de spins présentes dans les complexes métalliques, on peut résoudre l'Hamiltonien de spin d'échange isotrope dominant de manière directe par des techniques de recouplage. Ceci permet de traiter des clusters jusqu'à neuf spins, ces derniers pouvant avoir des facteurs g différents. Nous poursuivons cette revue par une étude théorique des propriétés magnétiques de spins en interaction sur un anneau avec une étude détaillée d'un complexe oligonucléaire métal-nitroxyde formé de six ions Mn^{2+}(S = 5/2) et de six radicaux libres (s = 1/2). Le comportement en fonction de la température de la susceptibilité est interprété à l'aide d'un modèle semi-classique de chaine alternée cyclique. Enfin, nous donnons un procédé pour déterminer les trois constantes d'échange d'un système de trois spins 1/2 couplés par échange isotrope dans le cas non résolu où ces trois constantes sont toutes différentes.

Exploring tidewater glacier retreat using past and current observations at Columbia Glacier, Alaska. (Invited)

NASA Astrophysics Data System (ADS)

O'Neel, S.; Pfeffer, W. T.; Howat, I. M.; Conway, H.; Columbia Glacier Consortium

2010-12-01

Since fulfilling Austin Post’s prediction of impending retreat in the late 1970s, Columbia Glacier has repeatedly surprised both casual and careful observers with its ability for rapid change. Over the last three decades, Columbia Glacier has lost approximately 18 km of its original 66 km length, while thinning by approximately 50% at the present terminus. The total ice volume lost to the Gulf of Alaska Estimates upwards of 120 km3 constrain the total ice volume lost to the Gulf of Alaska. Recently, the terminus supported a ~1.5 km long floating tongue for over than a year, contradicting the common assumption that the mechanical properties of temperate ice prohibit flotation over sustained time intervals. The rich history of study offers an opportunity to better understand tidewater glacier retreat, and a valuable analog to the dynamic instability underway at several ice sheet outlet glaciers. Current research aims to improve processing resolution of existing aerial photographic data, while complimenting the 30-year photogrammetric record with a suite of field observations. Recent instrumentation includes: oblique time lapse and still imagery, semi-permanent GPS, airborne radar, mass balance, passive seismology and LiDAR. This presentation will focus on innovative methods developed in recent field seasons, sharing insight each has provided into the retreat process . 1The Columbia Glacier Consortium consists of: Fabian Walter (SIO), Kenichi Matsuoka (NPI), Ben Smith (UW), Ethan Welty (CU-Boulder), Chris Larsen (UAF), Dave Finnegan (CRREL), Dan McNamara (USGS), Yushin Ahn (OSU), Julie Markus (OSU), Adam LeWinter (EIS).

Occurrence and distribution of selected heavy metals in the surface sediments of South Brittany coastal waters: An assessment using pollution indicators

NASA Astrophysics Data System (ADS)

Ong, M. C.; Menier, D.; Noor Azhar, M. S.; Dupont, V.; Révillon, S.

2012-04-01

In order to avoid the pollution of heavy metals in South Brittany water, it is necessary to establish the data and understand the mechanisms influencing the distribution of heavy metals of the area. One of the aims of this work was to assess heavy metals contamination in Gulf of Morbihan and Quiberon Bay. Another aim was to use interpolation surfaces per metals to assess the contamination separately per metal. A total of 196 bottom sediment samples were collected from the coastal waters in order to determine the spatial concentration of Cr, Mn, Co, Cu, Zn, Cd and Pb by Inductively Coupled Plasma Mass Spectrometry (ICPMS) after acid digestion. The average heavy metal concentrations are ranked as follows: Mn>Zn>Cr>Pb>Cu>Cu>Cd. In the gulf, metal enrichments observed compared to the bay environment may due river run-off from three major river (Auray, Le Marle and Novalo rivers) which carried municipal waste and maritime activities along the coastal area within the gulf. Beside those factors, the natural factors such as the sheltered basin morphology itself, fine sediment and low hydrodynamic regime which favour the in situ accumulation of pollutants. The level of pollution levels attributed to heavy metals was evaluated using several pollution indicators in order to determine anthropogenically derived sediment contamination. Comparison to sediment quality guidelines (SQGs), enrichment factors (EFs), index of geoaccumulation (Igeo) and contamination factors (CF) based on reference element and background value to compensate for the influence of the natural variability in sediment mineralogy and to assess whether the concentration observed in surface sediment represent background and contaminated levels and visualize using ArcGIS software. These analyses validated that the bottom sediment only enriched in Pb and the other metals in most sample are not due to artificial contamination. Overall, geochemistry of the samples show the effect of both natural and anthropogenic inputs to the catchment, however, natural processes are more dominant than anthropogenic inputs in concentrating metals in the sediment.

[Distribution of Aedes albopictus (Skuse) in Nuevo León, México, 2001-2004].

PubMed

Orta-Pesina, Héctor; Mercado-Hernández, Roberto; Elizondo-Leal, José Fernando

2005-01-01

To determine the distribution of Aedes albopictus (Skuse) in Nuevo Leon between 2001 and 2004. Standardized methods were used to collect 6371 samples of mosquito's larvae from 167 sites. The proportions of samples positive for Ae. albopictus were obtained by municipality and year, using the software program Excel. There were 1179 samples positive for Ae. albopictus. This species was distributed over 10 municipalities, as follows: Five on the Gulf of Mexico Coastal Plains, which predominantly have a semi-warm, sub-humid climate, and precipitations almost year round (Allende, Montemorelos, Linares, General Teran, and Santiago); two (Sabinas Hidalgo, and Cadereyta) localized on the North American Great Plains, which have a warm, semiarid climate, and scarce precipitations. The final three were Apodaca, San Nicolas, and Escobedo distributed over the metropolitan area of Monterrey City. Up to January 2004, the second most important epidemiological vector in the transmission cycle of Ae. albopictus worldwide was found in ten municipalities of Nuevo Leon State, Mexico.

Immunohistochemical expression of CD44s in human neuroblastic tumors: Moroccan experience and highlights on current data

PubMed Central

2013-01-01

Background Peripheral neuroblastic tumors (pNTs), including neuroblastoma (NB), ganglioneuroblastoma (GNB) and ganglioneuroma (GN), are extremely heterogeneous pediatric tumors responsible for 15 % of childhood cancer death. The aim of the study was to evaluate the expression of CD44s (‘s’: standard form) cell adhesion molecule by comparison with other specific prognostic markers. Methods An immunohistochemical profile of 32 formalin-fixed paraffin-embedded pNTs tissues, diagnosed between January 2007 and December 2010, was carried out. Results Our results have demonstrated the association of CD44s negative pNTs cells to lack of differentiation and tumour progression. A significant association between absence of CD44s expression and metastasis in human pNTs has been reported. We also found that expression of CD44s defines subgroups of patients without MYCN amplification as evidenced by its association with low INSS stages, absence of metastasis and favorable Shimada histology. Discussion These findings support the thesis of the role of CD44s glycoprotein in the invasive growth potential of neoplastic cells and suggest that its expression could be taken into consideration in the therapeutic approaches targeting metastases. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1034403150888863 Résumé Introduction les tumeurs neuroblastiques périphériques (TNPs), comprenant le neuroblastome (NB), le ganglioneuroblastome (GNB) et le ganglioneurome (GN), sont des tumeurs pédiatriques extrêmement hétérogènes responsables de 15% des décès par cancer chez les enfants. Le but de cette étude était d’évaluer l’expression de la molécule d’adhésion cellulaire CD44s (‘s’: pour standard) par rapport à d’autres facteurs pronostiques spécifiques. Méthodes Un profil immunohistochimique de 32 TNPs fixées au formol et incluses en paraffine, diagnostiquées entre Janvier 2007 et Décembre 2010, a été réalisé. Résultats Nos résultats ont mis en évidence l’association des TNPs n’exprimant pas le CD44s avec une perte de différenciation et une progression tumorale et nous avons rapporté une association significative entre l’absence d’expression du CD44s et la présence de métastases. Nous avons également constaté que l’expression du CD44s définit des sous-groupes de patients dans les tumeurs n’amplifiant pas le MYCN, comme en témoigne son association avec les stades INSS bas, l’absence de métastases et l’histologie favorable de Shimada. Discussion Ces résultats appuient l’hypothèse du rôle de la glycoprotéine CD44s dans le potentiel de croissance invasive des cellules néoplasiques et suggèrent que son expression pourrait être prise en considération dans des voies thérapeutiques ciblant les métastases. PMID:23445749

MISSISSIPPI EMBAYMENT AQUIFER SYSTEM IN MISSISSIPPI: GEOHYDROLOGIC DATA COMPILATION FOR FLOW MODEL SIMULATION.

USGS Publications Warehouse

Arthur, J.K.; Taylor, R.E.

1986-01-01

As part of the Gulf Coast Regional Aquifer System Analysis (GC RASA) study, data from 184 geophysical well logs were used to define the geohydrologic framework of the Mississippi embayment aquifer system in Mississippi for flow model simulation. Five major aquifers of Eocene and Paleocene age were defined within this aquifer system in Mississippi. A computer data storage system was established to assimilate the information obtained from the geophysical logs. Computer programs were developed to manipulate the data to construct geologic sections and structure maps. Data from the storage system will be input to a five-layer, three-dimensional, finite-difference digital computer model that is used to simulate the flow dynamics in the five major aquifers of the Mississippi embayment aquifer system.

The impact of oil revenues on Arab Gulf development

DOE Office of Scientific and Technical Information (OSTI.GOV)

El Azhary, M.S.

1984-01-01

This book presents papers on Middle East oil policy. Topics considered include oil production policies in the Gulf States, oil planning, the philosophy of state development planning, prospects for Gulf economic coordination, the philosophy of infrastructural development, industrialization in the Arab Gulf, the agricultural potential of the Arab Gulf states, the future of banking as a Gulf industry, manpower problems and projections in the Gulf, education as an instrument of progress in the Arab Gulf states, and the impact of development on Gulf society.

On the use of the stabilised Q1P0 element for geodynamical simulations and why this is a bad choice for buyoancy-driven flows.

NASA Astrophysics Data System (ADS)

Thieulot, Cedric

2016-04-01

Many Finite Element geodynamical codes (Fullsack,1995; Zhong et al., 2000; Thieulot, 2011) are based on bi/tri­-linear velocity constant pressure element (commonly called Q1P0), because of its ease of programming and rather low memory footprint, despite the presence of (pressure) checker­board modes. However, it is long known that the Q1P0 is not inf­-sup stable and does not lend itself to the use of iterative solvers, which makes it a less­ than­ ideal candidate for high resolution 3D models. Other attempts were made more recently (Burstedde et al., 2013; Le Pourhiet et al., 2012) with the use of the stabilised Q1Q1 element (bi/tri­-linear velocity and pressure). This element, while also attractive from an implementation and memory standpoint, suffers a major drawback due to the artificial compressibility introduced by the polynomial projection stabilization. These observations have shifted part of the community towards the Finite Difference Method while the remaining part is now embracing inf­sup stable second­ order elements [May et al., 2015; Kronbichler,2012). Rather surprinsingly, a third option exists when it comes to first ­order elements in the form of the stabilised Q1P0 element, but virtually no literature exists concerning its use for geodynamical applications. I will then recall the specificity of the stabilisation and will carry out a series of benchmark experiments and geodynamical tests to assess its performance. While being shown to work as expected in benchmark experiments, the stabilised Q1P0 element turns out to introduce first-order numerical artefacts in the velocity and pressure solutions in the case of buoyancy-driven flows. Burstedde, C., Stadler, G., Alisic, L., Wilcox, L. C., Tan, E., Gurnis, M., & Ghattas, O. (2013). Large­scale adaptive mantle convection simulation. Geophysical Journal International, 192(3), 889­906. Fullsack, P. (1995). An arbitrary Lagrangian­Eulerian formulation for creeping flows and its application in tectonic models. Geophysical Journal International, 120(1), 1­23. Kronbichler, M., Heister, T., & Bangerth, W. (2012). High accuracy mantle convection simulation through modern numerical methods. Geophysical Journal International, 191(1), 12­29. Le Pourhiet, L., Huet, B., May, D. A., Labrousse, L., & Jolivet, L. (2012). Kinematic interpretation of the 3D shapes of metamorphic core complexes. Geochemistry, Geophysics, Geosystems, 13(9). May, D. A., Brown, J., & Le Pourhiet, L. (2015). A scalable, matrix­free multigrid preconditioner for finite element discretizations of heterogeneous Stokes flow. Computer Methods in Applied Mechanics and Engineering, 290, 496­523. Thieulot, C. (2011). FANTOM: Two­and three­dimensional numerical modelling of creeping flows for the solution of geological problems. Physics of the Earth and Planetary Interiors, 188(1), 47­68. Zhong, S., Zuber, M. T., Moresi, L., & Gurnis, M. (2000). Role of temperature-dependent viscosity and surface plates in spherical shell models of mantle convection. Journal of Geophysical Research: Solid Earth (1978-2012), 105(B5), 11063­11082.

A modeling study of the characteristics and mechanism of the westward coastal current during summer in the northwestern South China Sea

NASA Astrophysics Data System (ADS)

Ding, Yang; Bao, Xianwen; Yao, Zhigang; Zhang, Cong; Wan, Kai; Bao, Min; Li, Ruixiang; Shi, Maochong

2017-03-01

The characteristics and dynamical mechanism of summer-time coastal current over the North South China Sea shelf have been investigated based on a high resolution unstructuredgrid finite volume community ocean model (FVCOM). Modeldata comparison demonstrates that the model describes and explains well the coastal dynamics over the North South China Sea shelf. The coastal current on the North South China Sea shelf is greatly influenced by monsoon and the freshwater discharge of the Pearl River. Strong southwesterly wind drives the coastal current northeastward. However, under weak southwest monsoon, the coastal current west of the Pearl River estuary (PRE) advects toward the southwest, and splits into two parts when reaching east of the Qiongzhou Strait, with one branch entering the Gulf of Tonkin through the Qiongzhou Strait, transporting low salinity water into the Gulf of Tonkin, and the other part flows cyclonic and interacts with the northeastward current around southeast of Hainan Island, forming a cyclonic eddy east of the Qiongzhou Strait. A variety of model experiments focused on freshwater discharge, wind forcing, tidal rectification, and stratification are performed to study the physical mechanism of the southwestward coastal current which is usually against the summer wind. Process-oriented experiment results indicate that the southwest monsoon and freshwater discharge are important factors influencing the formation of southwestward coastal current during summer.

A Review of Recent Aeroelastic Analysis Methods for Propulsion at NASA Lewis Research Center

NASA Technical Reports Server (NTRS)

Reddy, T. S. R.; Bakhle, Milind A.; Srivastava, R.; Mehmed, Oral; Stefko, George L.

1993-01-01

This report reviews aeroelastic analyses for propulsion components (propfans, compressors and turbines) being developed and used at NASA LeRC. These aeroelastic analyses include both structural and aerodynamic models. The structural models include a typical section, a beam (with and without disk flexibility), and a finite-element blade model (with plate bending elements). The aerodynamic models are based on the solution of equations ranging from the two-dimensional linear potential equation to the three-dimensional Euler equations for multibladed configurations. Typical calculated results are presented for each aeroelastic model. Suggestions for further research are made. Many of the currently available aeroelastic models and analysis methods are being incorporated in a unified computer program, APPLE (Aeroelasticity Program for Propulsion at LEwis).

Are GRACE-era terrestrial water trends driven by anthropogenic climate change?

DOE PAGES

Fasullo, J. T.; Lawrence, D. M.; Swenson, S. C.

2016-01-01

To provide context for observed trends in terrestrial water storage (TWS) during GRACE (2003–2014), trends and variability in the CESM1-CAM5 Large Ensemble (LE) are examined. Motivated in part by the anomalous nature of climate variability during GRACE, the characteristics of both forced change and internal modes are quantified and their influences on observations are estimated. Trends during the GRACE era in the LE are dominated by internal variability rather than by the forced response, with TWS anomalies in much of the Americas, eastern Australia, Africa, and southwestern Eurasia largely attributable to the negative phases of the Pacific Decadal Oscillation (PDO)more » and Atlantic Multidecadal Oscillation (AMO). While similarities between observed trends and the model-inferred forced response also exist, it is inappropriate to attribute such trends mainly to anthropogenic forcing. For several key river basins, trends in the mean state and interannual variability and the time at which the forced response exceeds background variability are also estimated while aspects of global mean TWS, including changes in its annual amplitude and decadal trends, are quantified. Lastly, the findings highlight the challenge of detecting anthropogenic climate change in temporally finite satellite datasets and underscore the benefit of utilizing models in the interpretation of the observed record.« less

Are GRACE-era terrestrial water trends driven by anthropogenic climate change?

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fasullo, J. T.; Lawrence, D. M.; Swenson, S. C.

To provide context for observed trends in terrestrial water storage (TWS) during GRACE (2003–2014), trends and variability in the CESM1-CAM5 Large Ensemble (LE) are examined. Motivated in part by the anomalous nature of climate variability during GRACE, the characteristics of both forced change and internal modes are quantified and their influences on observations are estimated. Trends during the GRACE era in the LE are dominated by internal variability rather than by the forced response, with TWS anomalies in much of the Americas, eastern Australia, Africa, and southwestern Eurasia largely attributable to the negative phases of the Pacific Decadal Oscillation (PDO)more » and Atlantic Multidecadal Oscillation (AMO). While similarities between observed trends and the model-inferred forced response also exist, it is inappropriate to attribute such trends mainly to anthropogenic forcing. For several key river basins, trends in the mean state and interannual variability and the time at which the forced response exceeds background variability are also estimated while aspects of global mean TWS, including changes in its annual amplitude and decadal trends, are quantified. Lastly, the findings highlight the challenge of detecting anthropogenic climate change in temporally finite satellite datasets and underscore the benefit of utilizing models in the interpretation of the observed record.« less

78 FR 14225 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-05

.... 120417412-2412-01] RIN 0648-XC510 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; 2013 Accountability Measure for Gulf of Mexico Commercial Gray Triggerfish... measure (AM) for commercial gray triggerfish in the Gulf of Mexico (Gulf) reef fish fishery for the 2013...

78 FR 66945 - Proposed Collection; 60-Day Comment request: Gulf Long-Term Follow-Up Study (GuLF STUDY)

Federal Register 2010, 2011, 2012, 2013, 2014

2013-11-07

... Comment request: Gulf Long-Term Follow-Up Study (GuLF STUDY) Summary: In compliance with the requirement... days of the date of this publication. Proposed Collection: Gulf Long-Term Follow-Up Study (GuLF STUDY... GuLF STUDY is to investigate potential short- and long-term health effects associated with oil spill...

77 FR 56168 - Reef Fish Fishery of the Gulf of Mexico; Gulf of Mexico Individual Fishing Quota Programs

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-12

.... 090206140-91081-03] RIN 0648-XC227 Reef Fish Fishery of the Gulf of Mexico; Gulf of Mexico Individual... red snapper and grouper/tilefish components of the reef fish fishery in the Gulf of Mexico (Gulf), the... INFORMATION: The reef fish fishery of the Gulf of Mexico is managed under the Fishery Management Plan for Reef...

75 FR 77880 - Proposed Collection; Comment Request; GuLF Worker Study: Gulf Long-Term Follow-Up Study for Oil...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-14

... Request: New. Need and Use of Information Collection: The purpose of the GuLF Study is to investigate... Request; GuLF Worker Study: Gulf Long-Term Follow-Up Study for Oil Spill Clean-Up Workers and Volunteers... instruments display a currently valid OMB control number. Proposed Collection Title: GuLF Worker Study: Gulf...

76 FR 64248 - Gulf of Mexico Reef Fish Fishery; Closure of the 2011 Gulf of Mexico Commercial Sector for...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-18

.... 040205043-4043-01] RIN 0648-XA766 Gulf of Mexico Reef Fish Fishery; Closure of the 2011 Gulf of Mexico... the commercial sector for greater amberjack in the exclusive economic zone (EEZ) of the Gulf of Mexico... Reef Fish Resources of the Gulf of Mexico (FMP). The FMP was prepared by the Gulf of Mexico Fishery...

Physical and Mental Health Status of Gulf War and Gulf Era Veterans: Results From a Large Population-Based Epidemiological Study.

PubMed

Dursa, Erin K; Barth, Shannon K; Schneiderman, Aaron I; Bossarte, Robert M

2016-01-01

The aim of the study was to report the mental and physical health of a population-based cohort of Gulf War and Gulf Era veterans 20 years after the war. A multimode (mail, Web, or computer-assisted telephone interviewing) heath survey of 14,252 Gulf War and Gulf Era veterans. The survey consisted of questions about general, physical, mental, reproductive, and functional health. Gulf War veterans report a higher prevalence of almost all queried physical and mental health conditions. The population as a whole, however, has a significant burden of disease including high body mass index and multiple comorbid conditions. Gulf War veterans continue to report poorer heath than Gulf Era veterans, 20 years after the war. Chronic disease management and interventions to improve health and wellness among both Gulf War and Gulf Era veterans are necessary.

The mental health of UK Gulf war veterans: phase 2 of a two phase cohort study

PubMed Central

Ismail, Khalida; Kent, Kate; Brugha, Traolach; Hotopf, Matthew; Hull, Lisa; Seed, Paul; Palmer, Ian; Reid, Steve; Unwin, Catherine; David, Anthony S; Wessely, Simon

2002-01-01

Objectives To examine the prevalence of psychiatric disorders in veterans of the Gulf war with or without unexplained physical disability (a proxy measure of ill health) and in similarly disabled veterans who had not been deployed to the Gulf war (non-Gulf veterans). Design Two phase cohort study. Setting Current and ex-service UK military personnel. Participants Phase 1 consisted of three randomly selected samples of Gulf veterans, veterans of the 1992-7 Bosnia peacekeeping mission, and UK military personnel not deployed to the Gulf war (Era veterans) who had completed a postal health questionnaire. Phase 2 consisted of randomly selected subsamples from phase 1 of Gulf veterans who reported physical disability (n=111) or who did not report disability (n=98) and of Bosnia (n=54) and Era (n=79) veterans who reported physical disability. Main outcome measure Psychiatric disorders assessed by the schedule for clinical assessment in neuropsychiatry and classified by the Diagnostic and Statistical Manual of Mental Disorders, fourth edition. Results Only 24% (n=27) of the disabled Gulf veterans had a formal psychiatric disorder (depression, anxiety, or alcohol related disorder). The prevalence of psychiatric disorders in non-disabled Gulf veterans was 12%. Disability and psychiatric disorders were weakly associated in the Gulf group when confounding was adjusted for (adjusted odds ratio 2.4, 99% confidence interval 0.8 to 7.2, P=0.04). The prevalence of psychiatric disorders was similar in disabled non-Gulf veterans and disabled Gulf veterans ( 19% v 24%; 1.3, 0.5 to 3.4). All groups had rates for post-traumatic stress disorder of between 1% and 3%. Conclusions Most disabled Gulf veterans do not have a formal psychiatric disorder. Post-traumatic stress disorder is not higher in Gulf veterans than in other veterans. Psychiatric disorders do not fully explain self reported ill health in Gulf veterans; alternative explanations for persistent ill health in Gulf veterans are needed. What is already known on this topicGulf veterans report medically unexplained symptoms more often than non-Gulf veteransThe clinical characteristics of ill health in Gulf veterans are not well known, and factors associated with ill health in Gulf veterans are poorly understoodWhat this study addsMost ill Gulf veterans do not have a formal psychiatric disorderThe rates for post-traumatic stress disorder are lowPsychiatric morbidity is not strongly associated with ill health in Gulf veteransThe rates for somatoform disorders are three times greater in disabled Gulf veterans than they are in disabled non-Gulf veterans PMID:12228134

Disordered porous solids : from chord distributions to small angle scattering

NASA Astrophysics Data System (ADS)

Levitz, P.; Tchoubar, D.

1992-06-01

Disordered biphasic porous solids are examples of complex interfacial media. Small angle scattering strongly depends on the geometrical properties of the internal surface partitioning a porous system. Properties of the second derivative of the bulk autocorrelation function quantitatively defines the level of connection between the small angle scattering and the statistical properties of this interface. A tractable expression of this second derivative, involving the pore and the mass chord distribution functions, was proposed by Mering and Tchoubar (MT). Based on the present possibility to make a quantitative connection between imaging techniques and the small angle scattering, this paper tries to complete and to extend the MT approach. We first discuss how chord distribution functions can be used as fingerprints of the structural disorder. An explicit relation between the small angle scattering and these chord distributions is then proposed. In a third part, the application to different types of disorder is critically discussed and predictions are compared to available experimental data. Using image processing, we will consider three types of disorder : the long-range Debye randomness, the “ correlated " disorder with a special emphasis on the structure of a porous glass (the vycor), and, finally, complex structures where length scale invariance properties can be observed. Les solides poreux biphasiques sont des exemples de milieux interfaciaux complexes. La diffusion aux petits angles (SAS) dépend fortement des propriétés géométriques de l'interface partitionant le milieu poreux. Les propriétés de la dérivée seconde de la fonction d'autocorrélation de densité définit quantitativement le niveau de connection entre la diffusion aux petits angles et les caractéristiques statistiques de cette interface. Une expression utilisable de cette seconde dérivée, impliquant les distributions de cordes associées à la phase massique et au réseau de pores, fut proposée par Mering et Tchoubar (MT). Mettant à profit la possibilité actuelle d'une comparaison quantitative entre les techniques d'imagerie et la diffusion aux petits angles, ce papier tente de compléter et d'étendre l'approche MT. Dans un premier temps, nous montrons en quoi la connaissance de ces distributions de cordes permet de distinguer certains types de désordres structuraux. Une relation explicite entre le spectre de diffusion aux petits angles et les distributions de cordes est alors proposée. Dans une troisième partie, l'application à différents types de désordre est discutée et les prédictions du modèle comparées aux résultats expérimentaux disponibles. Par utilisation du traitement d'images, nous nous intéressons à trois types de désordre : le milieu aléatoire de Debye, pour ses propriétés à grandes distances, le désordre “ corrélé " avec une attention particulière pour le cas d'un verre poreux (le Vycor) et enfin des organisations complexes où des propriétés d'invariance d'échelle de longueur peuvent être observées.

The phase diagrams of iron-based superconductors: Theory and experiments

NASA Astrophysics Data System (ADS)

Martinelli, Alberto; Bernardini, Fabio; Massidda, Sandro

2016-01-01

Phase diagrams play a primary role in the understanding of materials properties. For iron-based superconductors (Fe-SC), the correct definition of their phase diagrams is crucial because of the close interplay between their crystallochemical and magnetic properties, on one side, and the possible coexistence of magnetism and superconductivity, on the other. The two most difficult issues for understanding the Fe-SC phase diagrams are: 1) the origin of the structural transformation taking place during cooling and its relationship with magnetism; 2) the correct description of the region where a crossover between the magnetic and superconducting electronic ground states takes place. Hence a proper and accurate definition of the structural, magnetic and electronic phase boundaries provides an extremely powerful tool for material scientists. For this reason, an exact definition of the thermodynamic phase fields characterizing the different structural and physical properties involved is needed, although it is not easy to obtain in many cases. Moreover, physical properties can often be strongly dependent on the occurrence of micro-structural and other local-scale features (lattice micro-strain, chemical fluctuations, domain walls, grain boundaries, defects), which, as a rule, are not described in a structural phase diagram. In this review, we critically summarize the results for the most studied 11-, 122- and 1111-type compound systems, providing a correlation between experimental evidence and theory. Les deux difficultés principales pour la compréhension des diagrammes de phase Fe-SC sont : 1) l'origine de la transformation structurelle ayant lieu pendant le refroidissement et sa relation avec le magnétisme ; 2) la description correcte de la région où survient un recouvrement entre les états fondamentaux électroniques, magnétiques et supraconducteur électronique survient. De ce fait, une définition appropriée et précise des frontières des phases structurelle, magnétique et électronique fournit un outil extrêmement puissant pour les scientifiques du domaine des matériaux. Pour cette raison, une définition exacte des champs de phases thermodynamiques caractérisant les différentes propriétés structurelles et physiques impliquées est nécessaire, bien qu'elle ne soit pas aisée à obtenir dans de nombreux cas. De plus, les propriétés physiques peuvent souvent dépendre fortement de la survenue de caractéristiques micro-structurelles ou autres à l'échelle locale (micro-contraintes dans le réseau, fluctuations chimiques, parois de domaines, joints de grains, défauts), qui, d'ordinaire, ne sont pas décrites dans un diagramme de phases structurelles. Dans cette revue, nous résumons de manière critique les résultats obtenus pour les systèmes composites le plus étudiés de types 11, 122 et 1111, qui établissent une corrélation entre les preuves expérimentales et la théorie.

Prevalence of Gulf war veterans who believe they have Gulf war syndrome: questionnaire study

PubMed Central

Chalder, T; Hotopf, M; Unwin, C; Hull, L; Ismail, K; David, A; Wessely, S

2001-01-01

Objectives To determine how many veterans in a random sample of British veterans who served in the Gulf war believe they have “Gulf war syndrome,” to examine factors associated with the presence of this belief, and to compare the health status of those who believe they have Gulf war syndrome with those who do not. Design Questionnaire study asking British Gulf war veterans whether they believe they have Gulf war syndrome and about symptoms, fatigue, psychological distress, post-traumatic stress, physical functioning, and their perception of health. Participants 2961 respondents to questionnaires sent out to a random sample of 4250 Gulf war veterans (69.7%). Main outcome measure The proportion of veterans who believe they have Gulf war syndrome. Results Overall, 17.3% (95% confidence interval 15.9 to 18.7) of the respondents believed they had Gulf war syndrome. The belief was associated with the veteran having poor health, not serving in the army when responding to the questionnaire, and having received a high number of vaccinations before deployment to the Gulf. The strongest association was knowing another person who also thought they had Gulf war syndrome. Conclusions Substantial numbers of British Gulf war veterans believe they have Gulf war syndrome, which is associated with psychological distress, a high number of symptoms, and some reduction in activity levels. A combination of biological, psychological, and sociological factors are associated with the belief, and these factors should be addressed in clinical practice. What is already known on this topicThe term Gulf war syndrome has been used to describe illnesses and symptoms experienced by veterans of the 1991 Gulf warConcerns exist over the validity of Gulf war syndrome as a unique entityWhat this study adds17% of Gulf war veterans believe they have Gulf war syndromeHolding the belief is associated with worse health outcomesKnowing someone else who believes they have Gulf war syndrome and receiving more vaccinations were associated with holding the belief PMID:11532836

Mortality among US veterans of the Persian Gulf War: 7-year follow-up.

PubMed

Kang, H K; Bullman, T A

2001-09-01

To assess the long-term health consequences of the 1991 Persian Gulf War, the authors compared cause-specific mortality rates of 621,902 Gulf War veterans with those of 746,248 non-Gulf veterans, by gender, with adjustment for age, race, marital status, branch of service, and type of unit. Vital status follow-up began with the date of exit from the Persian Gulf theater (Gulf veterans) or May 1, 1991 (control veterans). Follow-up for both groups ended on the date of death or December 31, 1997, whichever came first. Cox proportional hazards models were used for the multivariate analysis. For Gulf veterans, mortality risk was also assessed relative to the likelihood of exposure to nerve gas at Khamisiyah, Iraq. Among Gulf veterans, the significant excess of deaths due to motor vehicle accidents that was observed during the earlier postwar years had decreased steadily to levels found in non-Gulf veterans. The risk of death from natural causes remained lower among Gulf veterans compared with non-Gulf veterans. This was mainly accounted for by the relatively higher number of deaths related to human immunodeficiency virus infection among non-Gulf veterans. There was no statistically significant difference in cause-specific mortality among Gulf veterans relative to potential nerve gas exposure. The risk of death for both Gulf veterans and non-Gulf veterans stayed less than half of that expected in their civilian counterparts. The authors conclude that the excess risk of mortality from motor vehicle accidents that was associated with Gulf War service has dissipated after 7 years of follow-up.

Deepwater Horizon NRDA Trustees Commend Gulf Task Force Efforts | NOAA Gulf

Science.gov Websites

of the five Gulf states and two federal agencies, commend the members of the Gulf Coast Ecosystem Gulf of Mexico ecosystem and the Gulf Coast region. “We share a common goal of a healthy , resilient Gulf ecosystem, and we intend to take into account the Task Force strategies and the public’s

78 FR 14983 - Fisheries of the Gulf of Mexico; Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-08

... the Gulf of Mexico; Gulf of Mexico Fishery Management Council; Public Meeting AGENCY: National Marine... of Gulf of Mexico Fishery Management Council Spanish Mackerel and Cobia Stock Assessment Review Workshop. SUMMARY: Independent peer review of Gulf of Mexico Spanish Mackerel and Cobia stocks will be...

Acceptabilité du test VIH proposé aux nourrissons dans les services pédiatriques, en Côte d'Ivoire, Significations pour la couverture du diagnostic pédiatrique

PubMed Central

Oga, Maxime; Brou, Hermann; Dago-Akribi, Hortense; Coffie, Patrick; Amani-Bossé, Clarisse; Ékouévi, Didier; Yapo, Vincent; Menan, Hervé; Ndondoki, Camille; Timité-Konan, M.; Leroy, Valériane

2014-01-01

Résumé Problème: Le dépistage VIH chez les enfants a rarement été au centre des préoccupations des chercheurs. Quand le dépistage pédiatrique a retenu l'attention, cela a été pour éclairer seulement sur les performances diagnostiques en ignorant même que le test pédiatrique comme bien d'autres peut s'accepter ou se refuser. Cet article met au cœur de son analyse les raisons qui peuvent expliquer qu'on accepte ou qu'on refuse de faire dépister son enfant. Objectif: Etudier chez les parents, les mères, les facteurs explicatifs de l'acceptabilité du test VIH des nourrissons de moins de six mois. Méthodes: Entretien semi-directif à passages répétés avec les parents de nourrissons de moins de six mois dans les formations sanitaires pour la pesée/vaccination et les consultations pédiatriques avec proposition systématique d'un test VIH pour leur nourrisson. Résultats: Nous retenons que la réalisation effective du test pédiatrique du VIH chez le nourrisson repose sur trois éléments. Primo, le personnel de santé par son discours (qui dénote de ses connaissances et perceptions même sur l'infection) orienté vers les mères influence leur acceptation ou non du test. Secundo, la mère qui par ses connaissances et perceptions même sur le VIH, dont le statut particulier, l'impression de bien-être chez elle et son enfant influence toute réalisation du test pédiatrique VIH. Tertio, l'environnement conjugal de la mère, particulièrement caractérisé par les rapports au sein du couple, sur la facilité de parler du test VIH et sa réalisation chez les deux parents ou chez la mère seulement sont autant de facteurs qui influencent la réalisation effective du dépistage du VIH chez l'enfant. Le principe préventif du VIH, et le désir de faire tester l'enfant ne suffisent pas à eux seuls pour aboutir à sa réalisation effective, selon certaines mères confrontées au refus du conjoint. A l'opposé, les autres mères refusant la réalisation du test pédiatrique disent s'y opposer ; bien entendu, même dans le cas où le conjoint l'accepterait. Discussion: Les mères sont les principales mises en cause et craignent les réprimandes et la stigmatisation. Le père, le conjoint peut être un obstacle, quand il s'oppose au test VIH du nourrisson, ou devenir le facilitateur de sa réalisation s'il est convaincu. Le positionnement du père demeure donc essentiel dans la question de l'acceptabilité du VIH pédiatrique. Les mères en ont conscience et présagent des difficultés à faire dépister ou non les enfants sans avis préalable du conjoint à la fois père, et chef de famille. Conclusion: La question du dépistage pédiatrique du VIH, au terme de notre analyse, met en face trois éléments qui exigent une gestion globale pour assurer une couverture effective. Ces trois éléments n'existeraient pas sans s'influencer, donc ils sont constamment en interaction et empêchent ou favorisent la réalisation ou non du test pédiatrique. Aussi, dans une intention d'aboutir à une couverture effective du dépistage VIH des nourrissons, faut-il tenir compte d'une gestion harmonieuse de ces trois éléments: La première, la mère seule (avec ses connaissances, ses perceptions), son environnement conjugal (de proposition du test intégrant 1- l’époux et / ou père de l'enfant avec ses perceptions et connaissances sur l'infection 2- la facilité de parler du test et sa réalisation chez les deux ou un des parents, la mère) et les connaissances, attitudes et pratiques du personnel de l’établissement sanitaire sur l'infection du VIH. Recommandations: Nos recommandations proposent une redéfinition de l'approche du VIH/sida vers des familles exposées au VIH et une intégration plus accentuée du père facilitant leur propre acceptation du test VIH et celle de leur enfant. PMID:25088574

47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)

Code of Federal Regulations, 2011 CFR

2011-10-01

... purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section... Zone. (2) Gulf of Mexico Coastal Zone. The geographical area within the Gulf of Mexico Service Area... unserved area licensing procedure for the GMEZ. (d) Operation within the Gulf of Mexico Coastal Zone (GMCZ...

50 CFR 622.17 - Notice regarding seasonal/area closures to protect Gulf reef fish.

Code of Federal Regulations, 2013 CFR

2013-10-01

... to protect Gulf reef fish. 622.17 Section 622.17 Wildlife and Fisheries FISHERY CONSERVATION AND... closures to protect Gulf reef fish. See § 622.34, paragraphs (a)(1) and (a)(3) through (6), regarding Gulf reef fish protective restrictions in the Gulf EEZ that apply broadly to multiple Gulf fisheries and...

50 CFR 622.17 - Notice regarding seasonal/area closures to protect Gulf reef fish.

Code of Federal Regulations, 2014 CFR

2014-10-01

... to protect Gulf reef fish. 622.17 Section 622.17 Wildlife and Fisheries FISHERY CONSERVATION AND... closures to protect Gulf reef fish. See § 622.34, paragraphs (a)(1) and (a)(3) through (6), regarding Gulf reef fish protective restrictions in the Gulf EEZ that apply broadly to multiple Gulf fisheries and...

All-Cause Mortality Among US Veterans of the Persian Gulf War: 13-Year Follow-up.

PubMed

Barth, Shannon K; Kang, Han K; Bullman, Tim

2016-11-01

We determined cause-specific mortality prevalence and risks of Gulf War deployed and nondeployed veterans to determine if deployed veterans were at greater risk than nondeployed veterans for death overall or because of certain diseases or conditions up to 13 years after conflict subsided. Follow-up began when the veteran left the Gulf War theater or May 1, 1991, and ended on the date of death or December 31, 2004. We studied 621   901 veterans who served in the 1990-1991 Persian Gulf War and 746   247 veterans who served but were not deployed during the Gulf War. We used Cox proportional hazard models to calculate rate ratios adjusted for age at entry to follow-up, length of follow-up, race, sex, branch of service, and military unit. We compared the mortality of (1) Gulf War veterans with non-Gulf War veterans and (2) Gulf War army veterans potentially exposed to nerve agents at Khamisiyah in March 1991 with those not exposed. We compared standardized mortality ratios of deployed and nondeployed Gulf War veterans with the US population. Male Gulf War veterans had a lower risk of mortality than male non-Gulf War veterans (adjusted rate ratio [aRR] = 0.97; 95% confidence interval [CI], 0.95-0.99), and female Gulf War veterans had a higher risk of mortality than female non-Gulf War veterans (aRR = 1.15; 95% CI, 1.03-1.28). Khamisiyah-exposed Gulf War army veterans had >3 times the risk of mortality from cirrhosis of the liver than nonexposed army Gulf War veterans (aRR = 3.73; 95% CI, 1.64-8.48). Compared with the US population, female Gulf War veterans had a 60% higher risk of suicide and male Gulf War veterans had a lower risk of suicide (standardized mortality ratio = 0.84; 95% CI, 0.80-0.88). The vital status and mortality risk of Gulf War and non-Gulf War veterans should continue to be investigated.

All-Cause Mortality Among US Veterans of the Persian Gulf War

PubMed Central

Kang, Han K.; Bullman, Tim

2016-01-01

Objective: We determined cause-specific mortality prevalence and risks of Gulf War deployed and nondeployed veterans to determine if deployed veterans were at greater risk than nondeployed veterans for death overall or because of certain diseases or conditions up to 13 years after conflict subsided. Methods: Follow-up began when the veteran left the Gulf War theater or May 1, 1991, and ended on the date of death or December 31, 2004. We studied 621   901 veterans who served in the 1990-1991 Persian Gulf War and 746   247 veterans who served but were not deployed during the Gulf War. We used Cox proportional hazard models to calculate rate ratios adjusted for age at entry to follow-up, length of follow-up, race, sex, branch of service, and military unit. We compared the mortality of (1) Gulf War veterans with non–Gulf War veterans and (2) Gulf War army veterans potentially exposed to nerve agents at Khamisiyah in March 1991 with those not exposed. We compared standardized mortality ratios of deployed and nondeployed Gulf War veterans with the US population. Results: Male Gulf War veterans had a lower risk of mortality than male non–Gulf War veterans (adjusted rate ratio [aRR] = 0.97; 95% confidence interval [CI], 0.95-0.99), and female Gulf War veterans had a higher risk of mortality than female non–Gulf War veterans (aRR = 1.15; 95% CI, 1.03-1.28). Khamisiyah-exposed Gulf War army veterans had >3 times the risk of mortality from cirrhosis of the liver than nonexposed army Gulf War veterans (aRR = 3.73; 95% CI, 1.64-8.48). Compared with the US population, female Gulf War veterans had a 60% higher risk of suicide and male Gulf War veterans had a lower risk of suicide (standardized mortality ratio = 0.84; 95% CI, 0.80-0.88). Conclusion: The vital status and mortality risk of Gulf War and non–Gulf War veterans should continue to be investigated. PMID:28123229

Skin disease in Gulf war veterans.

PubMed

Higgins, E M; Ismail, K; Kant, K; Harman, K; Mellerio, J; Du Vivier, A W P; Wessely, S

2002-10-01

Gulf war veterans report more symptomatic ill-health than other military controls, and skin disease is one of the most frequent reasons for military personnel to seek medical care. To compare the nature and prevalence of skin disease in UK Gulf veterans with non-Gulf veterans, and to assess whether skin disease is associated with disability. Prospective case comparison study. Disabled (n=111) and non-disabled (n=98) Gulf veterans and disabled non-Gulf veterans (n=133) were randomly selected from representative cohorts of those who served in the Gulf conflict 1990-1991, UN Bosnia Peacekeeping Force 1992-1997, or veterans in active service between 1990-91, but not deployed to the Gulf. Disability was defined as reduced physical functioning as measured by the Short Form 36 [score <72.2]. All subjects recruited were examined by a dermatologist, blind to the military and health status of the veteran. The prevalences of skin disease in disabled Gulf, non-disabled Gulf and disabled non-Gulf veterans were 47.7, 36.7, and 42.8% respectively. Seborrhoeic dermatitis was twice as common as expected in the Gulf veterans (both disabled and non-disabled). Skin disease does not appear to be contributing to ill health in Gulf war veterans, with the exception of an unexplained two-fold increase in seborrhoeic dermatitis.

78 FR 12012 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-21

.... 121004516-3064-01] RIN 0648-BC64 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Gag Management Measures in the Gulf of Mexico AGENCY: National Marine... of Mexico (FMP), as prepared by the Gulf of Mexico Fishery Management Council (Council). If...

76 FR 50181 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-12

... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... the Gulf of Mexico (Gulf) off Louisiana, is intended to more closely monitor populations of red snapper and other reef fish to ensure public health and seafood quality are maintained. DATES: Comments...

76 FR 54375 - Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-01

...-AA00 Safety Zone; Thunder on the Gulf, Gulf of Mexico, Orange Beach, AL AGENCY: Coast Guard, DHS... protection of crews, vessels, persons, and spectators on navigable waters during the Thunder on the Gulf high... to hold their Thunder on the Gulf high speed boat races starting on October 6, 2011. Publishing a...

77 FR 30507 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-23

... the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Exempted... and retention. This study, to be conducted in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf), is intended to better document the age structure and life history of fish associated with...

76 FR 43250 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-20

.... 110707375-1374-01] RIN 0648-BB07 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of Mexico; Removal of Regulations AGENCY: National Marine Fisheries Service (NMFS... Gulf of Mexico (FMP) and remove its implementing regulations, as requested by the Gulf of Mexico...

76 FR 69136 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-08

.... 110321211-1289-02] RIN 0648-BA94 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Gag Grouper Closure Measures AGENCY: National Marine Fisheries Service... interim measures to reduce overfishing of gag in the Gulf of Mexico (Gulf) implemented by a temporary rule...

75 FR 8819 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-26

.... 040205043-4043-01] RIN 0648-XU38 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Reopening of the Gulf Group King Mackerel East Coast Subzone AGENCY..., little tunny, and, in the Gulf of Mexico only, dolphin and bluefish) is managed under the Fishery...

The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary.

PubMed

Palter, Jaime; Coto, Sandra León; Ballestero, Daniel

2007-06-01

In the Gulf of Nicoya on the Pacific Coast of Costa Rica, nutrient rich equatorial subsurface water (ESW) is upwelled in much of the lower gulf. These offshore waters are often regarded as the major source of nutrients to the gulf. However, for most of the year, the ESW has little influence on the nutrient content of the upper gulf, which has a distinct character from the lower gulf. The upper gulf, extending 40 km north of the restriction between Puntarenas Peninsula and San Lucas Island, is bordered primarily by mangrove swamps, is less than 20 m deep, and is less saline than the lower gulf. We surveyed the upper gulf for dissolved inorganic nitrogen, phosphate, silicate, dissolved oxygen, and chlorophyll in November 2000, January and July 2001. All nutrients are more concentrated in the upper gulf during the rainy and transitional seasons than the dry season, significantly so for phosphate and silicate. Throughout the year, nutrients tend to be much more concentrated in the less saline water of the upper gulf. This trend indicates that discharge from the Tempisque River predominantly controls spatial and temporal nutrient variability in the upper gulf. However, nutrient rich ESW, upwelled offshore and mixed to form a mid-temperature intermediate water, may enter the inner gulf to provide an important secondary source of nutrients during the dry season.

ISR corrections to associated HZ production at future Higgs factories

NASA Astrophysics Data System (ADS)

Greco, Mario; Montagna, Guido; Nicrosini, Oreste; Piccinini, Fulvio; Volpi, Gabriele

2018-02-01

We evaluate the QED corrections due to initial state radiation (ISR) to associated Higgs boson production in electron-positron (e+e-) annihilation at typical energies of interest for the measurement of the Higgs properties at future e+e- colliders, such as CEPC and FCC-ee. We apply the QED Structure Function approach to the four-fermion production process e+e- →μ+μ- b b bar , including both signal and background contributions. We emphasize the relevance of the ISR corrections particularly near threshold and show that finite third order collinear contributions are mandatory to meet the expected experimental accuracy. We analyze in turn the rôle played by a full four-fermion calculation and beam energy spread in precision calculations for Higgs physics at future e+e- colliders.

Health and exposures of United Kingdom Gulf war veterans. Part I: The pattern and extent of ill health.

PubMed

Cherry, N; Creed, F; Silman, A; Dunn, G; Baxter, D; Smedley, J; Taylor, S; Macfarlane, G J

2001-05-01

To assess the health of United Kingdom Gulf war veterans, to compare their health to that of similar personnel not deployed, to describe patterns of ill health in both groups, and to estimate their extent. Main Gulf (n=4795) and validation Gulf (n=4793) cohorts were randomly selected within strata from the population deployed to the Gulf and a non-Gulf cohort (n=4790) from those who were not sent. Seven years after the war subjects completed a questionnaire about their health in the past month, including 95 symptom questions and two manikins on which to shade areas of pain or numbness and tingling. Responses were subjected to a principal component analysis with rotation and to a cluster analysis within each cohort. Mean symptom score was used as a measure of severity. Areas shaded on the manikins were coded to indicate widespread pain and possible toxic neuropathy. A response of 85.5% was achieved. Those who had been to the Gulf were more troubled by every symptom with a mean severity score (3.0) substantially greater than in the non-Gulf cohort (1.7). Seven factors were extracted accounting for 48% of the variance. The scores on five factors (labelled psychological, peripheral, respiratory, gastrointestinal, and concentration) were significantly worse in those who had been to the Gulf. Symptoms suggestive of peripheral neuropathy were found more often (12.5%) in the Gulf than the non-Gulf (6.8%) cohorts. Widespread pain was also found more often (12.2% Gulf; 6.5% non-Gulf). Those who had been to the Gulf were found disproportionately (23.8%) in three clusters with high mean severity scores; only 9.8% of non-Gulf respondents were in these clusters. There was no evidence of an important excess in the use of alcohol, tobacco, or referral to hospital specialists by those who had been to the Gulf. For the same level of reported ill health those who had been to the Gulf were less likely to be referred to specialists than non-Gulf veterans. 7 Years after the war, the Gulf war veterans were more troubled about their health than those who had not been sent, with a substantial subgroup reporting a pattern of symptoms suggestive of a significant decline in health.

Qatar: development of an oil economy

DOE Office of Scientific and Technical Information (OSTI.GOV)

El Mallakh, R.

Since black gold catapulted the oil-producing countries into the limelight of the international political and economic scene, there has been a proliferation of studies on the larger exporting states, neglecting many of the small countries like Qatar. A detailed examination of the bases and extent of economic development in Qatar and consideration of the need to translate the petroleum-generated growth into viable, self-sustained development is presented for the first time. Qatar was first in the field of oil development and exhibits a number of special features not shared by its Gulf neighbors: in pre-oil boom days it was already inmore » advance of many other Gulf states in the field of education; it has a modest agricultural sector and there is a comparatively strong attachment to the land; and it has played an important role in the Organization of Petroleum Exporting Countries (OPEC) as a member of the moderate price camp. The individual chapters trace the development of the oil industry, outline public financing and economic policy and sketch the issues involved in industrialization, absorptive capacity, and agricultural development. Examination is made of the social and physical infrastructure as well as money and banking, and the international linkages in trade, foreign aid, economic co-operation efforts and investment opportunities are elucidated. Planners in Qatar know that their revenue base in petroleum is finite, and thus investment of present surplus needs careful planning. Government priorities are outlined and areas for future investments are suggested.« less

A Modelling Study of the Coastal Current in the Northwestern South China Sea: Response to Strong and Weak Southwest Monsoon

NASA Astrophysics Data System (ADS)

Ding, Y.; Yu, J.; Bao, X.; Yao, Z.

2016-02-01

The characteristics and dynamical mechanism of summer-time coastal current over the northwestern South China Sea (NSCS) shelf have been investigated based on a high resolution unstructured-grid finite volume community ocean model (FVCOM). Model-data comparison demonstrates that model well resolves the coastal dynamics over the NSCS shelf. The coastal current on the NSCS shelf is intensively influenced by monsoon and freshwater discharge of the Pearl River. Strong southwesterly wind drive the coastal current northeastward. However, under weak southwest monsoon, the coastal current west of Pearl River estuary (PRE) advects toward southwest, and splits into two parts when reaching east of the Qiongzhou Strait, with one branch entering the Gulf of Tonkin through the Qiongzhou Strait, transporting low salinity water into the Gulf of Tonkin, and the other part flows cyclonic and interacts with the northeastward current around southeast of Hainan Island, forming a cyclonic eddy east of the Qiongzhou Strait. A variety of model experiments focused on freshwater discharge, wind forcing, tidal rectification, and stratification are performed to study the physical mechanism of the southwestward coastal current which is usually against the summer wind. Process-oriented experiment results indicate that the southwest monsoon and freshwater discharge are important factors influencing the formation of southwestward coastal current during summer. Momentum balance analysis suggests that the along shelf barotropic pressure gradient due to the Pearl River discharge and wind forcing provides the main driving force for the southwestward coastal current.

A modeling study on the Qiongzhou Strait westward current during summer

NASA Astrophysics Data System (ADS)

Bao, X.; Ren, S.

2016-02-01

The dynamic mechanism of Qiongzhou Strait westward current (QSWC) was studied using an advanced unstructured-grid finite volume coastal ocean model with high spatial resolution. The current in the Qiongzhou Strait (QS) flows westward all year round, even under southwest monsoon during summer season. Process-oriented experiments focused on wind, stratification, tide and river discharge were performed to examine the driving mechanism of the QSWC during summer. Numerical experiments results show that the QSWC is primarily caused by the tide-rectified flow. The connections between QSWC, West Guangdong coastal current (WGCC) and Gulf of Tonkin circulation (GOTC) were also evaluated. It shows that the WGCC could carry low-salinity water from the Pear River Estuary (PRE) into Gulf of Tonkin (GOT) through the QS and also contribute to the QSWC. We also examined the continuity of the coastal current system west of Guangdong based on the model experiments. It seemed that the coastal current was discontinuous when reached the QS. In addition, when QSWC was excluded in the model by closing the QS, the cyclonic circulation in the GOT still existed with reduced intensity. However, shutting down the QSWC had a great effect on modeling the salinity field in the GOT. The QS plays an important role in the water exchange between West Guangdong and GOT, therefore the QS need to be well resolved in a numerical model in order to accurately simulate the circulation system around West of Guangdong.

The mental health of UK Gulf war veterans: phase 2 of a two phase cohort study.

PubMed

Ismail, Khalida; Kent, Kate; Brugha, Traolach; Hotopf, Matthew; Hull, Lisa; Seed, Paul; Palmer, Ian; Reid, Steve; Unwin, Catherine; David, Anthony S; Wessely, Simon

2002-09-14

To examine the prevalence of psychiatric disorders in veterans of the Gulf war with or without unexplained physical disability (a proxy measure of ill health) and in similarly disabled veterans who had not been deployed to the Gulf war (non-Gulf veterans). Two phase cohort study. Current and ex-service UK military personnel. Phase 1 consisted of three randomly selected samples of Gulf veterans, veterans of the 1992-7 Bosnia peacekeeping mission, and UK military personnel not deployed to the Gulf war (Era veterans) who had completed a postal health questionnaire. Phase 2 consisted of randomly selected subsamples from phase 1 of Gulf veterans who reported physical disability (n=111) or who did not report disability (n=98) and of Bosnia (n=54) and Era (n=79) veterans who reported physical disability. Psychiatric disorders assessed by the schedule for clinical assessment in neuropsychiatry and classified by the Diagnostic and Statistical Manual of Mental Disorders, fourth edition. Only 24% (n=27) of the disabled Gulf veterans had a formal psychiatric disorder (depression, anxiety, or alcohol related disorder). The prevalence of psychiatric disorders in non-disabled Gulf veterans was 12%. Disability and psychiatric disorders were weakly associated in the Gulf group when confounding was adjusted for (adjusted odds ratio 2.4, 99% confidence interval 0.8 to 7.2, P=0.04). The prevalence of psychiatric disorders was similar in disabled non-Gulf veterans and disabled Gulf veterans ( 19% v 24%; 1.3, 0.5 to 3.4). All groups had rates for post-traumatic stress disorder of between 1% and 3%. Most disabled Gulf veterans do not have a formal psychiatric disorder. Post-traumatic stress disorder is not higher in Gulf veterans than in other veterans. Psychiatric disorders do not fully explain self reported ill health in Gulf veterans; alternative explanations for persistent ill health in Gulf veterans are needed.

75 FR 69402 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-12

.... SUMMARY: The Gulf of Mexico Fishery Management Council in conjunction with the Gulf & South Atlantic...) 873-8675. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration RIN 0648-XA028 Gulf of...

New views of the Gulf Stream

NASA Astrophysics Data System (ADS)

Todd, R. E.

2016-02-01

The Gulf Stream plays a major role in the climate system and is a significant forcing agent for the coastal circulation along the US East Coast, yet routine subsurface measurements of Gulf Stream structure are only collected in the Florida Straits and between New Jersey and Bermuda. A recent pilot program demonstrated the feasibility of using underwater gliders to repeatedly survey across the Gulf Stream and to provide subsurface Gulf Stream observations to the community in realtime. Spray gliders were deployed on three-month missions from Miami, Florida to the New England shelf south of Cape Cod, during which they zigzagged back and forth across the Gulf Stream. Three such deployments have been completed so far with a total of more than 20 cross-Gulf Stream transects occupied. These new observations detail the subsurface structure and variability of the Gulf Stream upstream and downstream of its separation from the continental margin, reveal large-amplitude internal waves within the boundary current, and capture numerous eddies along the flanks of the Gulf Stream. Future routine glider deployments in the Gulf Stream promise to provide critical observations for examining inherent Gulf Stream variability, investigating western boundary current influences on coastal circulation, and constraining numerical simulations.

Free and forced Rossby normal modes in a rectangular gulf of arbitrary orientation

NASA Astrophysics Data System (ADS)

Graef, Federico

2016-09-01

A free Rossby normal mode in a rectangular gulf of arbitrary orientation is constructed by considering the reflection of a Rossby mode in a channel at the head of the gulf. Therefore, it is the superposition of four Rossby waves in an otherwise unbounded ocean with the same frequency and wavenumbers perpendicular to the gulf axis whose difference is equal to 2mπ/W, where m is a positive integer and W the gulf's width. The lower (or higher) modes with small m (or large m) are oscillatory (evanescent) in the coordinate along the gulf; these are elucidated geometrically. However for oceanographically realistic parameter values, most of the modes are evanescent. When the gulf is forced at the mouth with a single Fourier component, the response is in general an infinite sum of modes that are needed to match the value of the streamfunction at the gulf's entrance. The dominant mode of the response is the resonant one, which corresponds to forcing with a frequency ω and wavenumber normal to the gulf axis η appropriate to a gulf mode: η =- β sin α/(2ω) ± Mπ/W, where α is the angle between the gulf's axis and the eastern direction (+ve clockwise) and M the resonant's mode number. For zonal gulfs ω drops out of the resonance condition. For the special cases η = 0 in which the free surface goes up and down at the mouth with no flow through it, or a flow with a sinusoidal profile, resonant modes can get excited for very specific frequencies (only for non-zonal gulfs in the η = 0 case). The resonant mode is around the annual frequency for a wide range of gulf orientations α ∈ [40°, 130°] or α ∈ [220°, 310°] and gulf widths between 150 and 200 km; these include the Gulf of California and the Adriatic Sea. If η is imaginary, i.e. a flow with an exponential profile, there is no resonance. In general less modes get excited if the gulf is zonally oriented.

Lithosphere thickness in the Gulf of California region

NASA Astrophysics Data System (ADS)

Fernández, Alejandra; Pérez-Campos, Xyoli

2017-11-01

The Gulf of California has a long tectonic history. Before the subduction of the Guadalupe and Magdalena plates ceased, extension of the Gulf began to the east, at the Basin and Range province. Later, it was focused west of the Sierra Madre Occidental and the opening of the Gulf started. Currently, the Gulf rifting has different characteristics to the north than to the south. In this study, we analyze the lithosphere thickness in the Gulf of California region by means of P-wave and S-wave receiver functions. We grouped our lithosphere-thickness estimates into five froups: 1) North of the Gulf, with a thin lithosphere ( 50 km) related to the extension observed in the Salton Through region; 2) the northwestern part of Baja California, with a thicker lithosphere ( 80 km), thinning towards the Gulf due to the extension and opening processes ( 65 km); 3) central Baja California, with no converted phase corresponding to the lithosphere-asthenosphere boundary but evidence of the presence of a slab remnant; 4) the southern Baja California peninsula, showing a shallow lithosphere-astenosphere boundary (LAB) (< 55 km) and a lithosphere thinning towards the Gulf; and 5) the eastern Gulf margin with lithosphere thinning towards the south. These groups can be further assembled into three regions: A) The northernmost Gulf, where both margins of the Gulf show a relatively constant lithosphere thickness, consistent with an old basement in Sonora and the presence of the Peninsular Ranges batholith in northern Baja California, thinning up towards the axis of the rift in the northernmost Gulf. B) Central and southern Gulf, where the lithosphere thickness in this region ranges from 40 to 55 km, which is consistent with the presence of a younger crust. C) Central Baja California peninsula, where LAB is not detected; but there is evidence of a slab remnant.

47 CFR 27.6 - Service areas.

Code of Federal Regulations, 2012 CFR

2012-10-01

... the United States Virgin Islands, American Samoa, and the Gulf of Mexico, which have been assigned... states, Alaska, Hawaii, the Gulf of Mexico, and the U.S. territories. Maps of the EAs, MEAs, MSAs, RSAs... (American Samoa) 51 (American Samoa) 175. 12 (Gulf of Mexico) 52 (Gulf of Mexico) 176. (2) The Gulf of...

47 CFR 27.6 - Service areas.

Code of Federal Regulations, 2011 CFR

2011-10-01

... the United States Virgin Islands, American Samoa, and the Gulf of Mexico, which have been assigned... states, Alaska, Hawaii, the Gulf of Mexico, and the U.S. territories. Maps of the EAs, MEAs, MSAs, RSAs... (American Samoa) 51 (American Samoa) 175. 12 (Gulf of Mexico) 52 (Gulf of Mexico) 176. (2) The Gulf of...

47 CFR 27.6 - Service areas.

Code of Federal Regulations, 2013 CFR

2013-10-01

... the United States Virgin Islands, American Samoa, and the Gulf of Mexico, which have been assigned... states, Alaska, Hawaii, the Gulf of Mexico, and the U.S. territories. Maps of the EAs, MEAs, MSAs, RSAs... (American Samoa) 51 (American Samoa) 175. 12 (Gulf of Mexico) 52 (Gulf of Mexico) 176. (2) The Gulf of...

77 FR 28308 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-14

... Fishery of the Gulf of Mexico; Gray Triggerfish Management Measures AGENCY: National Marine Fisheries... Act), implements interim measures to reduce overfishing of gray triggerfish in the Gulf of Mexico (Gulf). This rule reduces the gray triggerfish commercial quota (commercial annual catch target (ACT...

Gulf Dolphins Slideshow | NOAA Gulf Spill Restoration

Science.gov Websites

Skip to main content Home Home Toggle navigation Search form Search Search the web Search NOAA Gulf Spill Restoration Search Home About Us Trustees Contact Us How We Restore Planning Damage Assessment Archive Home Gulf Dolphins Slideshow Gulf Dolphins Slideshow share Posted on March 23, 2012 | Assessment

$627 Million Gulf Spill Restoration Plan Approved | NOAA Gulf Spill

Science.gov Websites

Publications Press Releases Story Archive Home $627 Million Gulf Spill Restoration Plan Approved $627 Million Gulf Spill Restoration Plan Approved Bird landing on water share Posted on October 3, 2014 | Assessment Gulf of Mexico early restoration projects since the oil spill. The restoration plan includes 44

30 CFR 519.414 - How will BOEM determine each Gulf producing State's share of the qualified OCS revenues?

Code of Federal Regulations, 2013 CFR

2013-07-01

... distance from the geographic centers of each applicable leased tract to each Gulf producing State's... each Gulf producing State using the following procedure: (1) For each Gulf producing State, we will...) For each Gulf producing State, we will divide the sum of each State's inverse distances, from all...

30 CFR 519.414 - How will BOEM determine each Gulf producing State's share of the qualified OCS revenues?

Code of Federal Regulations, 2012 CFR

2012-07-01

... distance from the geographic centers of each applicable leased tract to each Gulf producing State's... each Gulf producing State using the following procedure: (1) For each Gulf producing State, we will...) For each Gulf producing State, we will divide the sum of each State's inverse distances, from all...

30 CFR 519.414 - How will BOEM determine each Gulf producing State's share of the qualified OCS revenues?

Code of Federal Regulations, 2014 CFR

2014-07-01

... distance from the geographic centers of each applicable leased tract to each Gulf producing State's... each Gulf producing State using the following procedure: (1) For each Gulf producing State, we will...) For each Gulf producing State, we will divide the sum of each State's inverse distances, from all...

78 FR 78776 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-27

...), Commerce. ACTION: Final changes to management measures. SUMMARY: NMFS establishes funding responsibilities... the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (FMP), as prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). Newer and more efficient ELB units have...

76 FR 9735 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-22

... Fishery of the Gulf of Mexico; Red Snapper Management Measures AGENCY: National Marine Fisheries Service... the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management Council (Council). This proposed rule would increase the commercial...

On the self-organizing process of large scale shear flows

DOE Office of Scientific and Technical Information (OSTI.GOV)

Newton, Andrew P. L.; Kim, Eun-jin; Liu, Han-Li

2013-09-15

Self organization is invoked as a paradigm to explore the processes governing the evolution of shear flows. By examining the probability density function (PDF) of the local flow gradient (shear), we show that shear flows reach a quasi-equilibrium state as its growth of shear is balanced by shear relaxation. Specifically, the PDFs of the local shear are calculated numerically and analytically in reduced 1D and 0D models, where the PDFs are shown to converge to a bimodal distribution in the case of finite correlated temporal forcing. This bimodal PDF is then shown to be reproduced in nonlinear simulation of 2Dmore » hydrodynamic turbulence. Furthermore, the bimodal PDF is demonstrated to result from a self-organizing shear flow with linear profile. Similar bimodal structure and linear profile of the shear flow are observed in gulf stream, suggesting self-organization.« less

Hurricane shuts down gulf activity

DOE Office of Scientific and Technical Information (OSTI.GOV)

Koen, A.D.

1992-08-31

This paper reports that producers in the Gulf of Mexico and plant operators in South Louisiana last week were checking for damage wrought by Hurricane Andrew. In its wake Andrew left evacuated rigs and platforms in the gulf and shuttered plants across a wide swath of the Gulf Coast. Operations were beginning to return to normal late last week. Not all gulf operators, especially in the central gulf, expected to return to offshore facilities. And even producers able to book helicopters did not expect to be able to fully assess damage to all offshore installations before the weekend. MMS officialsmore » in Washington estimated that 37,500 offshore workers were evacuated from 700 oil and gas installations on the gulf's Outer Continental Shelf. Gulf oil and gas wells account for about 800,000 b/d of oil and one fourth of total U.S. gas production. MMS was awaiting an assessment of hurricane damage before estimating how soon and how much gulf oil and gas production would be restored.« less

Structural inheritance versus magmatic weakening: What controls the style of deformation at rift segment boundaries in the Gulf of California, Mexico?

NASA Astrophysics Data System (ADS)

Seiler, Christian; Gleadow, Andrew; Kohn, Barry

2013-04-01

Rifts are commonly segmented into several hundred kilometre long zones of opposing upper-plate transport direction with boundaries defined by accommodation and transfer zones. A number of such rift segments have been recognized in the Gulf of California, a youthful oceanic basin that is currently undergoing the rift-drift transition. However, detailed field studies have so far failed to identify suitable structures that could accommodate the obvious deformation gradients between different rift segments, and the nature of strain transfer at segment boundaries remains enigmatic. The Bocana transfer zone (BTZ) in central Baja California is a linear, WNW striking structural discontinuity separating two rift segments with different magnitudes and styles of extensional deformation. North of the BTZ, the Libertad fault is part of the Main Gulf Escarpment, which represents the breakaway fault that separates the Gulf of California rift to the east from the relatively stable western portion of the Baja peninsula. The N-striking Libertad escarpment developed during the Late Miocene (~10-8Ma) and exhibits a topographic relief of ca. 1,000m along a strike-length of ca. 50km. Finite displacement decreases from ~1000m in the central fault segment to ~500m further south, where the fault bends SE and merges with the BTZ. In the hanging wall of the Libertad fault, a series of W-tilted horsts are bound along their eastern margins by two moderate-displacement E-dipping normal faults. South of the BTZ, extension was much less than further north, which explains the comparatively subdued relief and generally shallower tilt of pre-rift strata in this area. The BTZ itself is characterized by two en echelon WNW-ESE striking dextral-oblique transfer faults with a significant down-to-the-NNE extensional component. Strain is transferred from the Libertad breakaway fault onto the transfer faults over a distance of >20km through a network of interacting normal, oblique and strike-slip faults. The shape, location and orientation of the main faults were strongly influenced by pre-existing rheological heterogeneities. Major normal faults are parallel to either the Mesozoic metamorphic foliation or Cretaceous intrusive contacts, and developed where the foliation was at a high angle to the extension direction. In contrast, the oblique-slip faults of the BTZ formed parallel to the metamorphic foliation where formlines are at a small angle to the regional extension direction. Compared to the BTZ, deformation in other known accommodation zones of the Gulf of California rift occurred distributed across a much wider zone, and appropriate transfer faults are either lacking or minor. In these cases, however, the accommodation zones coincide with the locations of significant pre- and synrift volcanism, suggesting that thermal weakening associated with magmatic activity may have promoted the distribution of strain across a wider region instead of localising it into discrete transfer faults.

78 FR 6218 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-30

...NMFS issues this final rule to implement management measures described in Amendment 38 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). This final rule modifies post-season accountability measures (AMs) that affect the recreational harvest of shallow-water grouper species (SWG), changes the trigger for recreational sector AMs for gag and red grouper, and revises the Gulf reef fish framework procedure. The intent of this final rule is to achieve optimum yield (OY) while ensuring the Gulf reef fish fishery resources are utilized efficiently.

30 CFR 219.414 - How will MMS determine each Gulf producing State's share of the qualified OCS revenues?

Code of Federal Regulations, 2011 CFR

2011-07-01

... determine each Gulf producing State's share of the qualified OCS revenues? (a) The MMS will determine the... be disbursed to each Gulf producing State using the following procedure: (1) For each Gulf producing... intersected. (2) For each Gulf producing State, we will divide the sum of each State's inverse distances, from...

47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)

Code of Federal Regulations, 2010 CFR

2010-10-01

... 47 Telecommunication 2 2010-10-01 2010-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...

76 FR 64327 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-18

... Drum, Reef Fish, Shrimp, and Coral and Coral Reefs Fishery Management Plans (Generic ACL Amendment) for... the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; South Atlantic... management unit in the Fishery Management Plan for Reef Fish Resources of the Gulf of Mexico (Reef Fish FMP...

76 FR 78245 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-16

... Coral and Coral Reefs FMPs (Generic ACL Amendment) for purposes of review by the Secretary under the... the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery; South Atlantic... the FMP for Reef Fish Resources of the Gulf of Mexico (Reef Fish FMP). DATES: This action is effective...

78 FR 62579 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-22

...), Commerce. ACTION: Proposed changes to management measures; request for comments. SUMMARY: NMFS proposes to... described in a framework action to the Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (FMP), as prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). Newer and more...

47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)

Code of Federal Regulations, 2014 CFR

2014-10-01

... 47 Telecommunication 2 2014-10-01 2014-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...

47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)

Code of Federal Regulations, 2012 CFR

2012-10-01

... 47 Telecommunication 2 2012-10-01 2012-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...

47 CFR 22.950 - Provision of service in the Gulf of Mexico Service Area (GMSA)

Code of Federal Regulations, 2013 CFR

2013-10-01

... 47 Telecommunication 2 2013-10-01 2013-10-01 false Provision of service in the Gulf of Mexico... service in the Gulf of Mexico Service Area (GMSA) The GMSA has been divided into two areas for licensing purposes, the Gulf of Mexico Exclusive Zone (GMEZ) and the Gulf of Mexico Coastal Zone (GMCZ). This section...

77 FR 1910 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-12

.... 100217095-1780-03] RIN 0648-AY56 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Amendment 32 AGENCY: National Marine Fisheries Service (NMFS), National... Mexico (Amendment 32) prepared by the Gulf of Mexico Fishery Management Council (Council). During the...

78 FR 49440 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-14

... Fisheries, Fishing, Gulf, Quotas, Red snapper. Dated: August 8, 2013. Alan D. Risenhoover, Director, Office... increase the 2013 commercial and recreational quotas for red snapper in the Gulf of Mexico (Gulf) reef fish fishery and re-open the red snapper recreational season for 2013. This proposed rule is intended to help...

A screening model analysis of mercury sources, fate and bioaccumulation in the Gulf of Mexico.

PubMed

Harris, Reed; Pollman, Curtis; Hutchinson, David; Landing, William; Axelrad, Donald; Morey, Steven L; Dukhovskoy, Dmitry; Vijayaraghavan, Krish

2012-11-01

A mass balance model of mercury (Hg) cycling and bioaccumulation was applied to the Gulf of Mexico (Gulf), coupled with outputs from hydrodynamic and atmospheric Hg deposition models. The dominant overall source of Hg to the Gulf is the Atlantic Ocean. Gulf waters do not mix fully however, resulting in predicted spatial differences in the relative importance of external Hg sources to Hg levels in water, sediments and biota. Direct atmospheric Hg deposition, riverine inputs, and Atlantic inputs were each predicted to be the most important source of Hg to at least one of the modeled regions in the Gulf. While incomplete, mixing of Gulf waters is predicted to be sufficient that fish Hg levels in any given location are affected by Hg entering other regions of the Gulf. This suggests that a Gulf-wide approach is warranted to reduce Hg loading and elevated Hg concentrations currently observed in some fish species. Basic data to characterize Hg concentrations and cycling in the Gulf are lacking but needed to adequately understand the relationship between Hg sources and fish Hg concentrations. Copyright © 2012. Published by Elsevier Inc.

2015 Gulf Guardian Award Winners

EPA Pesticide Factsheets

The Gulf of Mexico Program Partnership developed the Gulf Guardian awards as a way to recognize and honor the businesses, community groups, individuals, and agencies that are taking positive steps to keep the Gulf healthy, beautiful and productive.

2017 Gulf Guardian Award Winners

EPA Pesticide Factsheets

The Gulf of Mexico Program Partnership developed the Gulf Guardian awards as a way to recognize and honor the businesses, community groups, individuals, and agencies that are taking positive steps to keep the Gulf healthy, beautiful and productive.

Seasonal Oxygen Isotopic Variations in Marine Waters from the Caribbean and Pacific Coasts of Panama

NASA Astrophysics Data System (ADS)

Robbins, J. A.; Grossman, E. L.; Morales, J.; Thompson, R.; O'Dea, A.

2012-12-01

Stable isotopic studies of ancient tropical marine environments require a much more thorough understanding of the relative influences of freshening and upwelling on isotopic records than currently exists. To this aim we conducted twice-weekly δ18O and salinity measurements on waters collected from marine laboratories on opposite sides of the Isthmus of Panama; Naos in the Gulf of Panama (Tropical Eastern Pacific) and Galeta in the southwestern Caribbean (SWC). Data reveal the strong transition from dry to rainy season in the Gulf of Panama where upwelling in the dry-season increases coastal salinity (up to 34.4 psu) and δ18O values (-1.0 to 0.0‰), whilst the rainy season lowers marine δ18O values (as low as -1.6‰) due to the 2-3 fold increase in rainfall. In contrast, the SWC experiences no upwelling, but does reveal a significant amount of freshening caused by increasing rainfall at the transition from boreal spring to summer. Despite the greater disparity in the average rainfall between dry and wet seasons near Galeta (SWC) compared with the Gulf of Panama, a decrease in marine δ18O of only ~0.5‰ on average was found between seasons for SWC waters. The higher salinity and higher δ18O values in the coastal waters of the SWC are due in part to large scale climatic differences principally that the Caribbean experiences higher evaporation than rainfall. The relationship between salinity and δ18O in the Gulf of Panama is strong (R2=0.87; p<0.001), but is much less pronounced in the SWC (R2=0.38; p<0.001). Regression lines for these data describe the local relationship between salinity and δ18O. The slope and intercept (freshwater end-member) derived for the SWC (0.15±0.02‰/psu; -4.56±0.77‰) are similar to those from Fairbanks et al. [1] for the Atlantic as a whole (0.19‰/psu; -5.97‰) and essentially identical to those from Legrande and Schmidt [2] for the "Tropical Atlantic" (0.15±0.01‰/psu; -4.61±0.30‰). Gulf of Panama samples share a similar slope (0.28±0.01‰/psu) with those studies (0.26‰/psu [1]; 0.27±0.01‰/psu [2]) despite those studies representing huge areas in the Pacific. The δ18O of the freshwater end-member inferred from our samples is lower (-9.54±0.44‰) than Fairbanks et al. [1] and Legrande and Schmidt [2] (-8.77‰ and -8.88±0.30‰ respectively), but not significantly. Our freshwater end-member for the SWC samples (2σ ranges from -6.1 to -3.0‰) agrees well with measured freshwater sources near Galeta in the Caribbean (-2.7 to -5.2‰; [3]), but not the Gulf of Panama (our 2σ ranges from -10.4 to -8.7‰ compared to -8.4 to -6.1‰; [3]). These preliminary data show that nearshore waters share a similar relationship between salinity and δ18O as open ocean waters, which improves our ability to interpret seasonal δ18O profiles in the skeletons of coastal mollusks and corals. 1. Fairbanks et al. 1992. In: Taylor et al. eds. Radiocarbon after four decades. Springer-Verlag, New York, 473-500. 2. Lachniet & Patterson. 2006. J. Hydrol. 324: 115-140. 3. LeGrande & Schmidt, 2006. Geophys. Res. Lett. 33:L12604.

78 FR 76758 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-19

...NMFS announces the closure date of the recreational season for red snapper in the exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf) for the 2014 fishing season through this temporary rule. Federal waters of the Gulf will close to red snapper recreational harvest at 12:01 a.m., July 11, 2014. This closure is necessary to prevent the recreational sector from exceeding its quota for the fishing year and prevent overfishing of the Gulf red snapper resource.

Analyse de la prise en charge du nouveau-né dans le cadre de la stratégie nationale de subvention des accouchements et des soins obstétricaux et néonatals d'urgence au Centre Hospitalier Universitaire Pédiatrique Charles de Gaulle, Ouagadougou (Burkina Faso)

PubMed Central

Ouédraogo, Solange Odile Yugbaré; Yougbaré, Nestor; Kouéta, Fla; Dao; Ouédraogo, Moussa; Lougué, Claudine; Ludovic, Kam; Traoré, Ramata Ouédraogo; Yé, Diarra

2015-01-01

Introduction Il s'agit d'analyser la prise en charge du nouveau-né dans le cadre de la stratégie na-tionale de subvention des accouchements et des soins obstétricaux et néonatals d'urgence mis en place par le gouvernement du Burkina Faso en 2006. Méthodes Nous avons menée une étude à visée descriptive et analytique comportant un volet ré-trospectif du 01 janvier 2006 au 31 décembre 2010 portant sur les paramètres épidémiologiques, cliniques des nouveau-nés hospitalisés et un volet prospectif du 3 octobre 2011 au 29 février 2012 par une entrevue des accompagnateurs des nouveau-nés et des prestataires des services de santé. Résultats Les hospitalisations ont augmenté de 43,65% entre 2006 à 2010 Le taux de mortalité néo-natale hospitalière qui était de 11,04% a connu une réduction moyenne annuelle de 3,95%. L'entrevue a porté sur 110 accompagnateurs et 76 prestataires. La majorité des prestataires (97,44%) et des ac-compagnateurs (88,18%) étaient informés de la stratégie mais n'avait pas une connaissance exacte de sa définition. Les prestataires (94,74%) ont signalé des ruptures de médicaments, consommables médicaux et des pannes d’ appareils de laboratoire et d'imagerie. Parmi les accompagnateurs (89%) disaient être satisfaits des services offerts et (72,89%) trouvaient les coûts abordables mais évoquaient les difficultés du transport. Conclusion: La subvention a amélioré la prise en charge du nou-veau-né mais son optimisation nécessiterait une meilleur information et implication de tous les acteurs. Conclusion La subvention a amélioré la prise en charge du nouveau-né mais son optimisation nécessiterait une meilleur information et implication de tous les acteurs. PMID:26161166

Anti-Inflammatory Effects of Licorice and Roasted Licorice Extracts on TPA-Induced Acute Inflammation and Collagen-Induced Arthritis in Mice

PubMed Central

Kim, Ki Rim; Jeong, Chan-Kwon; Park, Kwang-Kyun; Choi, Jong-Hoon; Park, Jung Han Yoon; Lim, Soon Sung; Chung, Won-Yoon

2010-01-01

The anti-inflammatory activity of licorice (LE) and roated licorice (rLE) extracts determined in the murine phorbol ester-induced acute inflammation model and collagen-induced arthritis (CIA) model of human rheumatoid arthritis. rLE possessed greater activity than LE in inhibiting phorbol ester-induced ear edema. Oral administration of LE or rLE reduced clinical arthritis score, paw swelling, and histopathological changes in a murine CIA. LE and rLE decreased the levels of proinflammatory cytokines in serum and matrix metalloproteinase-3 expression in the joints. Cell proliferation and cytokine secretion in response to type II collagen or lipopolysaccharide stimulation were suppressed in spleen cells from LE or rLE-treated CIA mice. Furthermore, LE and rLE treatment prevented oxidative damages in liver and kidney tissues of CIA mice. Taken together, LE and rLE have benefits in protecting against both acute inflammation and chronic inflammatory conditions including rheumatoid arthritis. rLE may inhibit the acute inflammation more potently than LE. PMID:20300198

Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illness

DTIC Science & Technology

2010-07-01

09-2-0065 TITLE: Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illness PRINCIPAL INVESTIGATOR: William Joel Meggs, MD, PhD...From - To) 1 JUL 2009 - 30 JUN 2010 4. TITLE AND SUBTITLE Trial of Naltrexone and Dextromethorphan for Gulf War Veteravns’ Illness 5a... dextromethorphan & naltrexone for gulf war illness. 15. SUBJECT TERMS Dextromethorphan , naltexone, gulf war illness 16. SECURITY CLASSIFICATION OF

76 FR 67618 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-02

.... 110819519-1640-02] RIN 0648-BB22 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Red Grouper Management Measures AGENCY: National Marine Fisheries Service... the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the...

Modeling the Gulf Stream System: How Far from Reality?

NASA Technical Reports Server (NTRS)

Choa, Yi; Gangopadhyay, Avijit; Bryan, Frank O.; Holland, William R.

1996-01-01

Analyses of a primitive equation ocean model simulation of the Atlantic Ocean circulation at 1/6 deg horizontal resolution are presented with a focus on the Gulf Stream region. Among many successful features of this simulation, this letter describes the Gulf Stream separation from the coast of North America near Cape Hatteras, meandering of the Gulf Stream between Cape Hatteras and the Grand Banks, and the vertical structure of temperature and velocity associated with the Gulf Stream. These results demonstrate significant improvement in modeling the Gulf Stream system using basin- to global scale ocean general circulation models. Possible reasons responsible for the realistic Gulf Stream simulation are discussed, contrasting the major differences between the present model configuration and those of previous eddy resolving studies.

Multi-symptom illnesses, unexplained illness and Gulf War Syndrome

PubMed Central

Ismail, Khalida; Lewis, Glyn

2006-01-01

Explanatory models for the increased prevalence of ill health in Gulf veterans compared to those not deployed to the Gulf War 1990–1991 remain elusive. This article addresses whether multi-symptom reporting in Gulf veterans are types of medically unexplained symptoms and whether the alleged Gulf War Syndrome is best understood as a medically unexplained syndrome. A review of the epidemiological studies, overwhelmingly cross-sectional, describing ill health was conducted including those that used factor analysis to search for underlying or latent clinical constructs. The overwhelming evidence was that symptoms in Gulf veterans were either in keeping with currently defined psychiatric disorders such as depression and anxiety or were medically unexplained. The application of factor analysis methods had varied widely with a risk of over interpretation in some studies and limiting the validity of their findings. We concluded that ill health in Gulf veterans and the alleged Gulf War Syndrome is best understood within the medically unexplained symptoms and syndromes constructs. The cause of increased reporting in Gulf veterans are still not clear and requires further inquiry into the interaction between sociological factors and symptomatic distress. PMID:16687260

Thermal tolerances of reef corals in the Gulf: a review of the potential for increasing coral survival and adaptation to climate change through assisted translocation.

PubMed

Coles, Steve L; Riegl, Bernhard M

2013-07-30

Corals in the Gulf withstand summer temperatures up to 10 °C higher than corals elsewhere and have recovered from extreme temperature events in 10 years or less. This heat-tolerance of Gulf corals has positive implications for the world's coral populations to adapt to increasing water temperatures. However, survival of Gulf corals has been severely tested by 35-37 °C temperatures five times in the last 15 years, each time causing extensive coral bleaching and mortality. Anticipated future temperature increases may therefore challenge survival of already highly stressed Gulf corals. Previously proposed translocation of Gulf corals to introduce temperature-adapted corals outside of the Gulf is assessed and determined to be problematical, and to be considered a tool of last resort. Coral culture and transplantation within the Gulf is feasible for helping maintain coral species populations and preserving genomes and adaptive capacities of Gulf corals that are endangered by future thermal stress events. Copyright © 2012 Elsevier Ltd. All rights reserved.

Numerical Study of Mechanical Response of Pure Titanium during Shot Peening

NASA Astrophysics Data System (ADS)

Wang, Y. M.; Cheng, J. P.; Yang, H. P.; Zhang, C. H.

2018-05-01

Mechanical response of pure titanium impacted by a steel ball was simulated using finite element method to investigate stress and strain evolution during shot peening. It is indicated that biaxial residual stress was obtained in the surface layer while in the interior triaxial residual stress existed because the S33 was comparable to S11 and S22. With decreasing the depth from the top surface, the stress was higher during impacting, but the stress relief extent became more significant when the ball rebounded. Therefore the maximum residual stress was formed in the subsurface layer with depth of 130 μm. As for the residual strain, it is shown that the maximum residual strain LE33 was obtained at the depth of 60 μm corresponding to the maximum shear stress during impacting.

Forecasting of Storm-Surge Floods Using ADCIRC and Optimized DEMs

NASA Technical Reports Server (NTRS)

Valenti, Elizabeth; Fitzpatrick, Patrick

2006-01-01

Increasing the accuracy of storm-surge flood forecasts is essential for improving preparedness for hurricanes and other severe storms and, in particular, for optimizing evacuation scenarios. An interactive database, developed by WorldWinds, Inc., contains atlases of storm-surge flood levels for the Louisiana/Mississippi gulf coast region. These atlases were developed to improve forecasting of flooding along the coastline and estuaries and in adjacent inland areas. Storm-surge heights depend on a complex interaction of several factors, including: storm size, central minimum pressure, forward speed of motion, bottom topography near the point of landfall, astronomical tides, and, most importantly, maximum wind speed. The information in the atlases was generated in over 100 computational simulations, partly by use of a parallel-processing version of the ADvanced CIRCulation (ADCIRC) model. ADCIRC is a nonlinear computational model of hydrodynamics, developed by the U.S. Army Corps of Engineers and the US Navy, as a family of two- and three-dimensional finite-element-based codes. It affords a capability for simulating tidal circulation and storm-surge propagation over very large computational domains, while simultaneously providing high-resolution output in areas of complex shoreline and bathymetry. The ADCIRC finite-element grid for this project covered the Gulf of Mexico and contiguous basins, extending into the deep Atlantic Ocean with progressively higher resolution approaching the study area. The advantage of using ADCIRC over other storm-surge models, such as SLOSH, is that input conditions can include all or part of wind stress, tides, wave stress, and river discharge, which serve to make the model output more accurate. To keep the computational load manageable, this work was conducted using only the wind stress, calculated by using historical data from Hurricane Camille, as the input condition for the model. Hurricane storm-surge simulations were performed on an eight-node Linux computer cluster. Each node contained dual 2-GHz processors, 2GB of memory, and a 40GB hard drive. The digital elevation model (DEM) for this region was specified using a combination of Navy data (over water), NOAA data (for the coastline), and optimized Interferometric Synthetic Aperture Radar data (over land). This high-resolution topographical data of the Mississippi coastal region provided the ADCIRC model with improved input with which to calculate improved storm-surge forecasts.

Tsunami hazard assessment in El Salvador, Central America, from seismic sources through flooding numerical models

NASA Astrophysics Data System (ADS)

Álvarez-Gómez, J. A.; Aniel-Quiroga, Í.; Gutiérrez-Gutiérrez, O. Q.; Larreynaga, J.; González, M.; Castro, M.; Gavidia, F.; Aguirre-Ayerbe, I.; González-Riancho, P.; Carreño, E.

2013-05-01

El Salvador is the smallest and most densely populated country in Central America; its coast has approximately a length of 320 km, 29 municipalities and more than 700 000 inhabitants. In El Salvador there have been 15 recorded tsunamis between 1859 and 2012, 3 of them causing damages and hundreds of victims. The hazard assessment is commonly based on propagation numerical models for earthquake-generated tsunamis and can be approached from both Probabilistic and Deterministic Methods. A deterministic approximation has been applied in this study as it provides essential information for coastal planning and management. The objective of the research was twofold, on the one hand the characterization of the threat over the entire coast of El Salvador, and on the other the computation of flooding maps for the three main localities of the Salvadorian coast. For the latter we developed high resolution flooding models. For the former, due to the extension of the coastal area, we computed maximum elevation maps and from the elevation in the near-shore we computed an estimation of the run-up and the flooded area using empirical relations. We have considered local sources located in the Middle America Trench, characterized seismotectonically, and distant sources in the rest of Pacific basin, using historical and recent earthquakes and tsunamis. We used a hybrid finite differences - finite volumes numerical model in this work, based on the Linear and Non-linear Shallow Water Equations, to simulate a total of 24 earthquake generated tsunami scenarios. In the western Salvadorian coast, run-up values higher than 5 m are common, while in the eastern area, approximately from La Libertad to the Gulf of Fonseca, the run-up values are lower. The more exposed areas to flooding are the lowlands in the Lempa River delta and the Barra de Santiago Western Plains. The results of the empirical approximation used for the whole country are similar to the results obtained with the high resolution numerical modelling, being a good and fast approximation to obtain preliminary tsunami hazard estimations. In Acajutla and La Libertad, both important tourism centres being actively developed, flooding depths between 2 and 4 m are frequent, accompanied with high and very high person instability hazard. Inside the Gulf of Fonseca the impact of the waves is almost negligible.

Tsunami hazard assessment in El Salvador, Central America, from seismic sources through flooding numerical models.

NASA Astrophysics Data System (ADS)

Álvarez-Gómez, J. A.; Aniel-Quiroga, Í.; Gutiérrez-Gutiérrez, O. Q.; Larreynaga, J.; González, M.; Castro, M.; Gavidia, F.; Aguirre-Ayerbe, I.; González-Riancho, P.; Carreño, E.

2013-11-01

El Salvador is the smallest and most densely populated country in Central America; its coast has an approximate length of 320 km, 29 municipalities and more than 700 000 inhabitants. In El Salvador there were 15 recorded tsunamis between 1859 and 2012, 3 of them causing damages and resulting in hundreds of victims. Hazard assessment is commonly based on propagation numerical models for earthquake-generated tsunamis and can be approached through both probabilistic and deterministic methods. A deterministic approximation has been applied in this study as it provides essential information for coastal planning and management. The objective of the research was twofold: on the one hand the characterization of the threat over the entire coast of El Salvador, and on the other the computation of flooding maps for the three main localities of the Salvadorian coast. For the latter we developed high-resolution flooding models. For the former, due to the extension of the coastal area, we computed maximum elevation maps, and from the elevation in the near shore we computed an estimation of the run-up and the flooded area using empirical relations. We have considered local sources located in the Middle America Trench, characterized seismotectonically, and distant sources in the rest of Pacific Basin, using historical and recent earthquakes and tsunamis. We used a hybrid finite differences-finite volumes numerical model in this work, based on the linear and non-linear shallow water equations, to simulate a total of 24 earthquake-generated tsunami scenarios. Our results show that at the western Salvadorian coast, run-up values higher than 5 m are common, while in the eastern area, approximately from La Libertad to the Gulf of Fonseca, the run-up values are lower. The more exposed areas to flooding are the lowlands in the Lempa River delta and the Barra de Santiago Western Plains. The results of the empirical approximation used for the whole country are similar to the results obtained with the high-resolution numerical modelling, being a good and fast approximation to obtain preliminary tsunami hazard estimations. In Acajutla and La Libertad, both important tourism centres being actively developed, flooding depths between 2 and 4 m are frequent, accompanied with high and very high person instability hazard. Inside the Gulf of Fonseca the impact of the waves is almost negligible.

78 FR 61827 - Reef Fish Fishery of the Gulf of Mexico; 2013 Recreational Accountability Measure and Closure for...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-04

...NMFS implements an accountability measure (AM) for recreational gray triggerfish in the Gulf of Mexico (Gulf) reef fish fishery for the 2013 fishing year through this temporary final rule. Based on the projected recreational landings, NMFS determined that the recreational annual catch target (ACT) for Gulf gray triggerfish was reached in August 2013. Therefore, NMFS closes the recreational sector for gray triggerfish in the Gulf EEZ at 12:01 a.m., local time, October 15, 2013, until January 1, 2014. This closure is necessary to reduce overfishing of the Gulf gray triggerfish resource.

77 FR 64300 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-19

...NMFS proposes to implement management measures described in Amendment 38 to the Fishery Management Plan for the Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico (Gulf) Fishery Management Council (Council). If implemented, this rule would modify post-season accountability measures (AMs) that affect shallow- water grouper species (SWG), change the trigger for AMs, and revise the Gulf reef fish framework procedure. The intent of this proposed rule is to achieve optimum yield (OY) while ensuring the fishery resources are utilized efficiently.

Mercury in the Gulf of Mexico: sources to receptors.

PubMed

Harris, Reed; Pollman, Curtis; Landing, William; Evans, David; Axelrad, Donald; Hutchinson, David; Morey, Steven L; Rumbold, Darren; Dukhovskoy, Dmitry; Adams, Douglas H; Vijayaraghavan, Krish; Holmes, Christopher; Atkinson, R Dwight; Myers, Tom; Sunderland, Elsie

2012-11-01

Gulf of Mexico (Gulf) fisheries account for 41% of the U.S. marine recreational fish catch and 16% of the nation's marine commercial fish landings. Mercury (Hg) concentrations are elevated in some fish species in the Gulf, including king mackerel, sharks, and tilefish. All five Gulf states have fish consumption advisories based on Hg. Per-capita fish consumption in the Gulf region is elevated compared to the U.S. national average, and recreational fishers in the region have a potential for greater MeHg exposure due to higher levels of fish consumption. Atmospheric wet Hg deposition is estimated to be higher in the Gulf region compared to most other areas in the U.S., but the largest source of Hg to the Gulf as a whole is the Atlantic Ocean (>90%) via large flows associated with the Loop Current. Redistribution of atmospheric, Atlantic and terrestrial Hg inputs to the Gulf occurs via large scale water circulation patterns, and further work is needed to refine estimates of the relative importance of these Hg sources in terms of contributing to fish Hg levels in different regions of the Gulf. Measurements are needed to better quantify external loads, in-situ concentrations, and fluxes of total Hg and methylmercury in the water column, sediments, and food web. Copyright © 2012 Elsevier Inc. All rights reserved.

Submesoscale currents in the northern Gulf of Mexico: Deep phenomena and dispersion over the continental slope

NASA Astrophysics Data System (ADS)

Bracco, Annalisa; Choi, Jun; Joshi, Keshav; Luo, Hao; McWilliams, James C.

2016-05-01

This study examines the mesoscale and submesoscale circulations along the continental slope in the northern Gulf of Mexico at depths greater than 1000 m. The investigation is performed using a regional model run at two horizontal grid resolutions, 5 km and 1.6 km, over a 3 year period, from January 2010 to December 2012. Ageostrophic submesoscale eddies and vorticity filaments populate the continental slope, and they are stronger and more abundant in the simulation at higher resolution, as to be expected. They are formed from horizontal shear layers at the edges of highly intermittent, bottom-intensified, along-slope boundary currents and in the cores of those currents where they are confined to steep slopes. Two different flow regimes are identified. The first applies to the De Soto Canyon that is characterized by weak mean currents and, in the high-resolution run, by intense but few submesoscale eddies that form near preferentially along the Florida continental slope. The second is found in the remainder of the domain, where the mean currents are stronger and the circulation is highly variable in both space and time, and the vorticity field is populated, in the high-resolution case, by numerous vorticity filaments and short-lived eddies. Lagrangian tracers are deployed at different times along the continental shelf below 1000 m depth to quantify the impact of the submesoscale currents on transport and mixing. The modeled absolute dispersion is, on average, independent of horizontal resolution, while mixing, quantified by finite-size Lyapunov exponents and vertical relative dispersion, increases when submesoscale processes are present. Dispersion in the De Soto Canyon is smaller than in the rest of the model domain and less affected by resolution. This is further confirmed comparing the evolution of passive dye fields deployed in De Soto Canyon near the Macondo Prospect, where the Deepwater Horizon rig exploded in 2010, and at the largest known natural hydrocarbon seep in the northern Gulf, known as GC600, located a few hundred kilometers to the west of the rig wellhead.

Healthcare utilization and mortality among veterans of the Gulf War

PubMed Central

Gray, Gregory C; Kang, Han K

2006-01-01

The authors conducted an extensive search for published works concerning healthcare utilization and mortality among Gulf War veterans of the Coalition forces who served during the1990–1991 Gulf War. Reports concerning the health experience of US, UK, Canadian, Saudi and Australian veterans were reviewed. This report summarizes 15 years of observations and research in four categories: Gulf War veteran healthcare registry studies, hospitalization studies, outpatient studies and mortality studies. A total of 149 728 (19.8%) of 756 373 US, UK, Canadian and Australian Gulf War veterans received health registry evaluations revealing a vast number of symptoms and clinical conditions but no suggestion that a new unique illness was associated with service during the Gulf War. Additionally, no Gulf War exposure was uniquely implicated as a cause for post-war morbidity. Numerous large, controlled studies of US Gulf War veterans' hospitalizations, often involving more than a million veterans, have been conducted. They revealed an increased post-war risk for mental health diagnoses, multi-symptom conditions and musculoskeletal disorders. Again, these data failed to demonstrate that Gulf War veterans suffered from a unique Gulf War-related illness. The sparsely available ambulatory care reports documented that respiratory and gastrointestinal complaints were quite common during deployment. Using perhaps the most reliable data, controlled mortality studies have revealed that Gulf War veterans were at increased risk of injuries, especially those due to vehicular accidents. In general, healthcare utilization data are now exhausted. These findings have now been incorporated into preventive measures in support of current military forces. With a few diagnostic exceptions such as amyotrophic lateral sclerosis, mental disorders and cancer, it now seems time to cease examining Gulf War veteran morbidity and to direct future research efforts to preventing illness among current and future military personnel. PMID:16687261

Microtubule Abnormalities Underlying Gulf War Illness in Neurons from Human-Induced Pluripotent Cells

DTIC Science & Technology

2016-09-01

AWARD NUMBER: W81XWH-15-1-0433 TITLE: Microtubule Abnormalities Underlying Gulf War Illness in Neurons from Human -Induced Pluripotent Cells...2015 - 31 Aug 2016 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Microtubule Abnormalities Underlying Gulf War Illness in Neurons from Human -Induced...functions to normal in neurons derived from human pluripotent cells exposed to Gulf War toxins. 15. SUBJECT TERMS microtubule, neuron, Gulf War Illness

Climate change and its potential impacts on the Gulf Coast region of the United States.

PubMed

Tchounwou, P B

1999-01-01

The Gulf Coast region of the United States abuts five states, including Alabama, Florida, Louisiana, Mississippi, and Texas. In general, the Gulf of Mexico has a surface area of 1.63 million square kilometers (630,000 square miles) and a watershed area of 4.69 million square kilometers (1.81 million square miles) in the United States. This region is one of the nation's largest ecological systems and is closely linked to a significant portion of the nation's economy. In the Gulf Coast region, energy, fisheries, agriculture, and tourism rank among the most significant sectors of the economy. The Gulf has five of the top ten fishing ports in the United States, and commercial fisheries in the Gulf annually produce nearly 2 billion tons of fish, oysters, shrimps, and crabs. Gulf ports handle one-half of the nation's import-export tonnage. Petroleum produced in the Gulf represents about 80% of the nation's offshore production. The Gulf Coast region largely relies on many natural resources to fuel many important sectors of its economy. But nevertheless, the health and vitality of the Gulf have declined in recent years, caused in part by increasing populations along its coast and the growing demand upon its resources and in part by the accumulation of years of careless depletion, abuse, and neglect of the environment. Equally important are the impacts of natural and human-induced climate change on the economy and on the quality of life for millions of people living in the Gulf Coast region. The results have generated alarming increases in damage to and destruction of the ecosystems and habitats of the Gulf. This paper reviews the nature of global environmental change and addresses the potential health and environmental impacts that may occur in the Gulf Coast region of the United States as a consequence of various environmental alterations resulting from global change.

Thermohaline circulation in the Gulf of California

NASA Astrophysics Data System (ADS)

Bray, N. A.

1988-05-01

The Gulf of California, a narrow, semienclosed sea, is the only evaporative basin of the Pacific Ocean. As a result of evaporative forcing, salinities in the gulf are 1 to 2 ‰ higher than in the adjacent Pacific at the same latitude. This paper examines the thermohaline structure of the gulf and the means by which thermohaline exchange between the Pacific and the gulf occurs, over time scales of months to years. In addition to evaporative forcing, air-sea heat fluxes and momentum fluxes are important to thermohaline circulation in the gulf. From observations presented here, it appears that the gulf gains heat from the atmosphere on an annual average, unlike the Mediterranean and Red seas, which have comparable evaporative forcing. As a result, outflow from the gulf tends to be less dense than inflow from the Pacific. Winds over the gulf change direction with season, blowing northward in summer and southward in winter. This same seasonal pattern appears in near-surface transports averaged across the gulf. The thermohaline circulation, then, consists of outflow mostly between about 50 m and 250 m, inflow mostly between 250 m and 500 m, and a surface layer in which the direction of transport changes with seasonal changes in the large-scale winds. Using hydrographic observations from a section across the central gulf, total transport in or out of the northern gulf is estimated to be 0.9 Sv, heat gain from the atmosphere is estimated to be 20 to 50 W m-2, and evaporation is estimated to be 0.95 m yr-1. These estimates are annual averages, based on cruises from several years. Seasonal variations in thermohaline structure in the gulf are also examined and found to dominate the variance in temperature and density in the top 500 m of the water column. Salinity has little seasonal variability but does exhibit more horizontal variablility than temperature or density. Major year-to-year variations in thermohaline structure may be attributable to El Niño-Southern Oscillation events.

75 FR 57760 - Combined Notice of Filings No. 1

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-22

...: Gulf States Transmission Corporation. Description: Gulf States Transmission Corporation submits tariff filing per 154.203: Gulf States Transmission Corporation Baseline Tariff Filing to be effective 9/15/2010... Refund Report filings: Docket Numbers: RP10-1301-000. Applicants: Gulf South Pipeline Company, LP...

76 FR 68437 - Combined Notice of Filings

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-04

...: Filings Instituting Proceedings Docket Numbers: RP12-61-000. Applicants: Gulf Crossing Pipeline Company LLC. Description: Gulf Crossing Pipeline Company LLC submits tariff filing per 154.204: Antero 2 to.... Docket Numbers: RP12-63-000. Applicants: Gulf South Pipeline Company, LP. Description: Gulf South...

Sediment pollution by heavy metals in the Strymonikos and Ierissos Gulfs, North Aegean Sea, Greece.

PubMed

Stamatis, Nikolaos; Ioannidouw, Despina; Christoforidis, Achilleas; Koutrakis, Emmanouil

2002-11-01

Surface sediment samples from Strymonikos and Ierissos Gulfs were analyzed for Cu, Pb, Zn, Cr and Ni. The results showed that the sediment of Ierissos Gulf is more polluted with Cu, Pb, and Zn as compared to that of Strymonikos Gulf. The benthal area located off the load-out facility of the mining operations in the town of Stratoni, in Ierissos Gulf is established as the most polluted region. The distribution of Cr and Ni in both gulfs indicates the natural origin of these metals with the weathering of Strymon River and of other smaller rivers rocks being responsible for their enrichment.

Psychiatric disorder in veterans of the Persian Gulf War of 1991. Systematic review.

PubMed

Stimpson, Nicola J; Thomas, Hollie V; Weightman, Alison L; Dunstan, Frank; Lewis, Glyn

2003-05-01

Veterans of the Persian Gulf War of 1991 have reported symptoms attributed to their military service. To review all studies comparing the prevalence of psychiatric disorders in Gulf War veterans and in a comparison group of service personnel not deployed to the Gulf War. Studies of military personnel deployed to the Gulf published between 1990 and 2001 were identified from electronic databases. Reference lists and websites were searched and key researchers were contacted for information. A total of 2296 abstracts and 409 complete articles were reviewed and data were extracted independently by two members of the research team. The prevalence of psychiatric disorder in 20 studies of Gulf War veterans was compared with the prevalence in the comparison group. Prevalence of post-traumatic stress disorder (PTSD) and common mental disorder were higher in the Gulf War veterans. Heterogeneity between studies was significant, but all reported this increased prevalence. Veterans of the Persian Gulf War reported an increased prevalence of PTSD and common mental disorder compared with other active service personnel not deployed to the Gulf. These findings are attributable to the increase in psychologically traumatic events in wartime.

Trait-based Modeling of Larval Dispersal in the Gulf of Maine

NASA Astrophysics Data System (ADS)

Jones, B.; Richardson, D.; Follows, M. J.; Hill, C. N.; Solow, A.; Ji, R.

2016-02-01

Population connectivity of marine species is the inter-generational movement of individuals among geographically separated subpopulations and is a crucial determinant of population dynamics, community structure, and optimal management strategies. For many marine species, population connectivity is largely determined by the dispersal patterns that emerge from a pelagic larval phase. These dispersal patterns are a result of interactions between the physical environment, adult spawning strategy, and larval ecology. Using a generalized trait-based model that represents the adult spawning strategy as a distribution of larval releases in time and space and the larval trait space with the pelagic larval duration, vertical swimming behavior, and settlement habitat preferences, we simulate dispersal patterns in the Gulf of Maine and surrounding regions. We implement this model as an individual-based simulation that tracks Lagrangian particles on a graphics processing unit as they move through hourly archived output from the Finite-Volume Community Ocean Model. The particles are released between the Hudson Canyon and Nova Scotia and the release distributions are determined using a novel method that minimizes the number of simulations required to achieve a predetermined level of precision for the connectivity matrices. The simulated larvae have a variable pelagic larval duration and exhibit multiple forms of dynamic depth-keeping behavior. We describe how these traits influence the dispersal trajectories and connectivity patterns among regions in the northwest Atlantic. Our description includes the probability of successful recruitment, patchiness of larval distributions, and the variability of these properties in time and space under a variety of larval dispersal strategies.

Myocardial Fibrosis in Hypertrophic Cardiomyopathy: Volumetric Assessment of Late Enhancement Provided by Cardiac Computed Tomography.

PubMed

Langer, Christoph; Schaefer, Philipp; Lutz, Matthias; Eden, Matthias; Hohnhorst, Mirko; Harders, Hauke; Faber, Lothar; Jansen, Olav; Both, Marcus; Frey, Norbert

2015-01-01

With subgroups of patients with hypertrophic cardiomyopathy (HCM) confers a 4% to 5% risk for adverse prognosis. Besides left-ventricular muscle mass (LV-MM) myocardial fibrosis (MF) assessable by late gadolinium enhancement in cardiovascular magnetic resonance (LGE-CMR) has been related to that. Myocardial fibrosis can also be demonstrated by late enhancement (LE) in late-enhanced multislice computed tomography (leMDCT). This analysis investigates leMDCT whether to enable quantification of LE load in terms of LE mass by percent LV-MM in HCM. In a prospective validation study, we included 30 consecutive patients with HCM who underwent leMDCT (64 slice) and LGE-CMR (1.5 T). The leMDCT scan was performed 7 minutes after injection of iodine contrast (Iopromid). Endocardial and epicardial planimetry served for the assessment of LV-MM. Visually detectable LE was quantified using the manual quantification method resulting in LE by percent LV-MM (%LE). The LGE-CMR data served for validation. Mean (SD) age was 64.1 (13.9) years. Myocardial fibrosis prevalence was 63.3% (19/30 patients indentified by both leMDCT and LGE-CMR). In leMDCT, tissue density in LE areas compared with normal myocardium was higher (138.2 [23.9] HU vs 98.4 [16.5] HU, P < 0.001) but lower than in the LV cavity (138.2 [23.9] HU vs 169.2 [35.9] HU, P < 0.001). Late enhancement mass in leMDCT seemed to be 7.9 (8.5) g LE versus 8.6 [11] g LGE in CMR (P = 0.497, r = 0.95) resulting in a leMDCT/LGE-CMR relation of 1.2. Referring LE mass to LV-MM gave an LE proportion measured by leMDCT of 4 (3.9) %LE versus 3.9 (4.1) %LGE in LGE-CMR (r = 0.88, P = 0.75). Intraobserver/interobserver reliability of LE mass assessment showed an intraclass correlation coefficient of 0.99 and 0.97. In patients with HCM, leMDCT provides volumetric assessment of LE mass-absolutely and by percent LV-MM.

Climate change impacts on groundwater resources: modelled deficits in a chalky aquifer, Geer basin, Belgium

NASA Astrophysics Data System (ADS)

Brouyère, Serge; Carabin, Guy; Dassargues, Alain

An integrated hydrological model (MOHISE) was developed in order to study the impact of climate change on the hydrological cycle in representative water basins in Belgium. This model considers most hydrological processes in a physically consistent way, more particularly groundwater flows which are modelled using a spatially distributed, finite-element approach. Thanks to this accurate numerical tool, after detailed calibration and validation, quantitative interpretations can be drawn from the groundwater model results. Considering IPCC climate change scenarios, the integrated approach was applied to evaluate the impact of climate change on the water cycle in the Geer basin in Belgium. The groundwater model is described in detail, and results are discussed in terms of climate change impact on the evolution of groundwater levels and groundwater reserves. From the modelling application on the Geer basin, it appears that, on a pluri-annual basis, most tested scenarios predict a decrease in groundwater levels and reserves in relation to variations in climatic conditions. However, for this aquifer, the tested scenarios show no enhancement of the seasonal changes in groundwater levels. Un modèle hydrologique intégré (MOHISE) a été développé afin d'étudier l'impact du changement climatique sur le cycle hydrologique de bassins versants représentatifs de Belgique. Ce modèle prend en compte tous les processus hydrologiques d'une manière physiquement consistante, plus particulièrement les écoulements souterrains qui sont modélisés par une approche spatialement distribuée aux éléments finis. Grâce à cet outil numérique précis, après une calibration et une validation détaillées, des interprétations quantitatives peuvent être réalisées à partir des résultats du modèle de nappe. Considérant des scénarios de changements climatiques de l'IPCC, l'approche intégrée a été appliquée pour évaluer l'impact du changement climatique sur le cycle de l'eau du bassin du Geer en Belgique. Le modèle de nappe est décrit en détail et les résultats sont discutés en terme d'impact du changement climatique sur l'évolution des réserves souterraines. Les premiers résultats indiquent que des déficits d'eau souterraine peuvent apparaître dans le futur en Belgique. Se ha desarrollado un modelo hidrológico integrado (MOHISE) para estudiar el impacto del cambio climático en el ciclo hidrológico de cuencas representativas en Bélgica. Este modelo considera todos los procesos hidrológicos de forma coherente, especialmente en relación con los flujos de aguas subterráneas, que son modelados por medio de un enfoque de elementos finitos espacialmente distribuidos. Gracias a esta herramienta numérica precisa, y tras una calibración y validación detalladas, se puede obtener interpretaciones cuantitativas de los resultados del modelo del acuífero. Considerando escenarios de cambio climático IPCC, se ha aplicado el enfoque integrado a la evaluación del impacto de dicho cambio climático en el ciclo hidrológico de la cuenca del Geer. Se describe los detalles y resultados del modelo de las aguas subterráneas en términos del impacto del cambio climático en la evolución de las reservas de los acuíferos. Los resultados preliminares indican que es posible esperar déficits de aguas subterráneas en un futuro en Bélgica.

76 FR 56191 - Combined Notice of Filings #2

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-12

.... Eastern Time on Friday, September 23, 2011. Docket Numbers: ER11-4426-000. Applicants: Gulf States Energy, Inc. Description: Gulf States Energy, Inc. Cancellation Notice. Filed Date: 09/02/2011. Accession...: ER11-4427-000. Applicants: Gulf States Energy Investments L.P. Description: Gulf States Energy...

77 FR 59901 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-01

... Panel in conjunction with the Gulf States Marine Fisheries Commission's Law Enforcement Committee. DATES... Panel (LEAP) along with the Gulf States Marine Fisheries Commission's Law Enforcement Committee (LEC... each of the Gulf States, as well as the National Oceanic and Atmospheric Administration (NOAA) Law...

77 FR 64597 - Proposed Information Collection (Survey of Chronic Gastrointestinal Illness in Persian Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-22

... information needed to evaluate chronic gastrointestinal disorders in Persian Gulf War Veterans. DATES: Written... deployed in the first Persian Gulf War returned with persistent gastrointestinal symptoms, typical of... of Chronic Gastrointestinal Illness in Persian Gulf Veterans (Irritable Bowel Syndrome--Diarrhea...

77 FR 75568 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-21

... exclusive economic zone (EEZ) of the Gulf of Mexico (Gulf) through this temporary rule. NMFS has determined... maintaining the commercial and recreational quotas for red snapper in 2013 at the 2012 level. The intent of...

77 FR 25144 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-27

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting. SUMMARY: The Gulf of Mexico..., May 17, 2012. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council...

75 FR 39495 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-09

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory.... Beach Blvd, Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council, 2203 North... Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY...

77 FR 40859 - Gulf of Mexico Fishery Management Council; Public Meetings; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-11

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... Ludwig Lane, Grand Isle, LA 70358; telephone: (985) 787-2163 Council address: Gulf of Mexico Fishery...

77 FR 8810 - Gulf of Mexico Fishery Management Council; Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-15

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory... East Beach Blvd., Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council, 2203..., Deputy Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630...

75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-19

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene its Law Enforcement Advisory...., Orange Beach, AL 36561. Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois... Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY INFORMATION...

INTEGRATED COASTAL MONITORING PROGRAM FOR THE GULF OF MEXICO

EPA Science Inventory

The Gulf of Mexico Program (GMP) Office in cooperation with Gulf State agencies, EPA Regions 4 and 6, EPA's Office of Water and Office of Research and Development (ORD), and the GMP principal partners are developing an integrated coastal monitoring program for the Gulf of Mexico....

77 FR 39998 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-06

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting. SUMMARY: The Gulf of Mexico... Ludwig Lane, Grand Isle, LA 70358; telephone: (985) 787-2163. Council address: Gulf of Mexico Fishery...

78 FR 62587 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-22

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Gulf of Mexico Fishery... Atmospheric Administration (NOAA), Commerce. ACTION: Notice of a public meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold a meeting of...

Satellite views of the massive algal bloom in the Persian Gulf and the Gulf of Oman during 2008-2009

NASA Astrophysics Data System (ADS)

Yu, Shujie; Gong, Fang; He, Xianqiang; Bai, Yan; Zhu, Qiankun; Wang, Difeng; Chen, Peng

2016-10-01

The Persian Gulf and the Gulf of Oman locate at the northwest of the Arabian Sea, with the total area more than 50,0000 km2. The Persian Gulf is a semi-enclosed subtropical sea with high water temperature, extremely high salinity, and an average depth of 50 meters. By the Strait of Hormuz, the Persian Gulf is connected to the Gulf of Oman which is significantly affected by the monsoonal winds and by water exchange between the Arabian Sea and the Persian Gulf. Algal blooms occurred frequently in the Persian Gulf and the Gulf of Oman, and some of them are harmful algal blooms which may lead to massive fish death and thereby serious economic loss. Due to the widely spatial coverage and temporal variation, it is difficult to monitoring the dynamic of the algal bloom based on in situ measurement. In this study, we used the remote sensing data from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard the Aqua satellite to investigate a massive algal bloom event in the Persian Gulf and the Gulf of Oman during 2008-2009. The time series of MODIS-derived chlorophyll concentration (Chl-a) indicated that the bloom event with high Chl-a concentration ( 60 percent higher than corresponding climatological data) appeared to lasting more than 8 months from autumn of 2008 to spring of 2009. In addition, the bloom was widespread from the Persian Gulf to the Gulf of Oman and neighboring open ocean. The MODIS-derived net primary production (NPP) collected from MODIS showed the same trend with Chl-a. Multiple forces including upwelling, dust deposition was taken into account to elucidate the mechanisms for the long-lasting algal bloom. The time series chlorophyll concentration of the Persian Gulf emerges a significant seasonal pattern with maximum concentrations seen during the winter time and lowest during the summer. It also indicated slight disturbances occurred in June (May/July) and December (November/ January) in some years. The sea surface temperature and water transparency in the Persian Gulf increased with the rates of 0.3% (<0.01) and 3.02% (p<0.01) during 2003-2014, respectively. Chl-a and NPP declined with the rates of 1.61% (p=0.06) and 1.09% (p=0.08), respectively. However, there are no significant changes of the bloom initiation, termination and duration time among years over 2003-2014.

LeEix1 functions as a decoy receptor to attenuate LeEix2 signaling.

PubMed

Bar, Maya; Sharfman, Miya; Avni, Adi

2011-03-01

The receptors for the fungal elicitor EIX (LeEix1 and LeEix2) belong to a class of leucine-rich repeat cell-surface glycoproteins with a signal for receptor-mediated endocytosis. Both receptors are able to bind the EIX elicitor while only the LeEix2 receptor mediates defense responses. We show that LeEix1 acts as a decoy receptor and attenuates EIX induced internalization and signaling of the LeEix2 receptor. We demonstrate that BAK1 binds LeEix1 but not LeEix2. In plants where BAK1 was silenced, LeEix1 was no longer able to attenuate plant responses to EIX, indicating that BAK1 is required for this attenuation. We suggest that LeEix1 functions as a decoy receptor for LeEix2, a function which requires the kinase activity of BAK1.

Physical health, mental health, and utilization of complementary and alternative medicine services among Gulf War veterans.

PubMed

Holliday, Stephanie Brooks; Hull, Amanda; Lockwood, Courtney; Eickhoff, Christine; Sullivan, Patrick; Reinhard, Matthew

2014-12-01

Gulf War veterans represent a unique subset of the veteran population. It has been challenging to identify interventions that result in improvements in physical and mental health for this population. Recently, there has been recognition of a potential role for complementary and alternative medicine (CAM) interventions. This paper examines the characteristics of Gulf War and non-Gulf War veterans referred to a CAM clinic, and explores the utilization of services by this population. Participants included 226 veterans enrolled in a CAM clinic at a Veterans Affairs medical center, 42 of whom were Gulf War veterans. Self-report measures of physical/mental health were administered, and service utilization was obtained from participants' medical records for a 6-month period. Gulf War veterans enrolled in the program reported more severe physical and mental health symptoms than non-Gulf War veterans. However, examining only veterans who participated in services in the 6 months following enrollment, the 2 groups reported similar symptom severity. Both groups were similar in their attendance of individual acupuncture and iRest yoga nidra, although Gulf War veterans attended fewer sessions of group acupuncture. Although Gulf War veterans who enroll in a CAM program may have more severe symptoms than non-Gulf War veterans, those who actually participate in services are similar to non-Gulf War veterans on these measures. These groups also differ in their pattern of service utilization. Future research should explore the reasons for these differences, and to identify ways to promote treatment engagement with this population.

Cutaneous manifestations of lupus erythematosus.

PubMed

Parodi, A; Cozzani, E

2014-10-01

Cutaneous involvement in case of lupus erythematosus (LE) is very frequent and can present both specific or non-specific manifestations. LE specific lesions can be classified in acute, subacute and chronic cutaneous LE lesions. All of them can be localized and generalized. The LE non specific lesions are not exclusive to LE disease but are often seen in patients with active systemic LE. All the cutaneous lesions are often induced or aggravated by ultraviolet light, in fact they are usually localized in sun-exposed areas. Acute cutaneous LE is associated with systemic disease, subacute cutaneous LE has been considered a subset of its own since 1979 when it was first described, chronic cutaneous LE is the most common subtype of LE. Although less frequently also the chronic cutaneous lesions can be an aspect of systemic LE (25%).

50 CFR 640.1 - Purpose and scope.

Code of Federal Regulations, 2012 CFR

2012-10-01

... Gulf of Mexico off the Atlantic and Gulf of Mexico states from the Virginia/North Carolina border south..., DEPARTMENT OF COMMERCE SPINY LOBSTER FISHERY OF THE GULF OF MEXICO AND SOUTH ATLANTIC General Provisions... the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic prepared by the South Atlantic and...

76 FR 10561 - Gulf of Mexico Fishery Management Council; Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-25

... Panel in conjunction with the Gulf States Marine Fisheries Commission's Law Enforcement Committee... the Gulf States Marine Fisheries Commission's Law Enforcement Committee to consider the status of... consists of principal law enforcement officers in each of the Gulf States, as well as the National Oceanic...

77 FR 56813 - Fisheries of the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-14

... States Marine Fisheries Commission, and the Gulf States Marine Fisheries Commission, implemented the... the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and Review (SEDAR...) 769-4520; email: [email protected] . SUPPLEMENTARY INFORMATION: The South Atlantic, Gulf of...

76 FR 50719 - Fisheries of the South Atlantic, Gulf of Mexico, and Caribbean; Southeastern Data, Assessment...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-16

... Atlantic, Gulf of Mexico, and Caribbean Fishery Management Councils; in conjunction with NOAA Fisheries, the Atlantic States Marine Fisheries Commission, and the Gulf States Marine Fisheries Commission... the South Atlantic, Gulf of Mexico, and Caribbean; Southeastern Data, Assessment, and Review (SEDAR...

50 CFR 622.4 - Permits and fees.

Code of Federal Regulations, 2011 CFR

2011-10-01

... migratory pelagic fish. (B) South Atlantic coastal migratory pelagic fish. (C) Gulf reef fish. (D) South... regarding a limited access system for charter vessel/headboat permits for Gulf reef fish and Gulf coastal... headboat, respectively. (iv) If Federal regulations for Gulf reef fish in subparts A, B, or C of this part...

50 CFR 622.4 - Permits and fees.

Code of Federal Regulations, 2010 CFR

2010-10-01

... migratory pelagic fish. (B) South Atlantic coastal migratory pelagic fish. (C) Gulf reef fish. (D) South... regarding a limited access system for charter vessel/headboat permits for Gulf reef fish and Gulf coastal... headboat, respectively. (iv) If Federal regulations for Gulf reef fish in subparts A, B, or C of this part...

ESTABLISHING A NATURE CONSERVANCY GULF OF MEXICO INITIATIVE MX974946

EPA Science Inventory

The Conservancy will initiate a three-year pilot program to create a Gulf of Mexico Initiative within TNC to coordinate and enhance site-based conservation work at priority Gulf coastal sites. TNC would hire an ecologist to serve as the director of TNC's Gulf of Mexico Initiative...

Gulf Coast Ecosystem Restoration Council Public Meeting | NOAA Gulf Spill

Science.gov Websites

Publications Press Releases Story Archive Home Gulf Coast Ecosystem Restoration Council Public Meeting Gulf Coast Ecosystem Restoration Council Public Meeting share Posted on December 5, 2012 | Assessment and Early Restoration Restoration Area The Council, which was established by the Resources and Ecosystem

Gulf Coast Ecosystem Restoration Task Force Meeting and Public Listening

Science.gov Websites

Data Media & News Publications Press Releases Story Archive Home Gulf Coast Ecosystem Restoration Task Force Meeting and Public Listening Session Gulf Coast Ecosystem Restoration Task Force Meeting and Title: Gulf Coast Ecosystem Restoration Task Force Meeting and Public Listening SessionDescription: The

Observing environmental change in of the Gulf of Maine: ICUC smartphone app

EPA Science Inventory

Want to help collect data on environmental change in the Gulf of Maine with your smartphone? The Gulf of Maine Council’s EcoSystem Indicator Partnership (ESIP) is growing the community of citizen scientists in the Gulf of Maine region through its new smartphone app: ICUC (...

Gulf Cooperation Council: Arabian Gulf Cooperation Continues Defense Forces (Peninsula Shield Force)

DTIC Science & Technology

2015-05-23

Lieutenant Colonel Rhett Champagne , USAF, “The Case for a Gulf Cooperation Council Peninsula Shield Force,” The FAOA Journal of International Affairs...Anthony J. Mastalir USAF, Lieutenant Colonel Jim Keating USA, and Lieutenant Colonel Rhett Champagne , USAF. “The Case for a Gulf Cooperation Council

50 CFR 622.50 - Permits, permit moratorium, and endorsements.

Code of Federal Regulations, 2013 CFR

2013-10-01

... OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE CARIBBEAN, GULF OF MEXICO, AND SOUTH ATLANTIC Shrimp Fishery of the Gulf of Mexico § 622.50 Permits, permit moratorium, and... Fishery Management Plan for the Shrimp Fishery of the Gulf of Mexico (Gulf Shrimp FMP), all commercial...

77 FR 19231 - New England Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-30

... ABC recommendations for redfish, Georges Bank haddock, Gulf of Maine/ Georges Bank windowpane flounder... 2013 and 2014 ABC recommendations for Georges Bank cod, Gulf of Maine haddock, Cape Cod/ Gulf of Maine yellowtail flounder, American plaice, witch flounder and Georges Bank/Gulf of Maine white hake. c. Other...

75 FR 7444 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-19

.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a web based meeting of the... via internet. Please go to the Gulf of Mexico Fishery Management Council's website at www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue...

76 FR 80343 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-23

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene a meeting of the...: The meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607, telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery...

78 FR 9888 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-12

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Artificial... Thursday, February 28, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...

76 FR 37064 - Gulf of Mexico Fishery Management Council (Council); Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-24

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting via webinar... meeting will be held via webinar. Council address: Gulf of Mexico Fishery Management Council, 2203 North... Executive Director, Gulf of Mexico Fishery Management Council; telephone: (813) 348-1630. SUPPLEMENTARY...

78 FR 9372 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-08

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Private.... on Tuesday, February 26, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... INFORMATION CONTACT: Dr. John Froeschke, Fishery Biologist- Statistician; Gulf of Mexico Fishery Management...

76 FR 37328 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-27

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc...) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. FOR FURTHER INFORMATION CONTACT: Dr. Assane Diagne, Economist; Gulf of Mexico Fishery...

75 FR 19941 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-16

...: The Gulf of Mexico Fishery Management Council will convene a public meeting of its Outreach and... will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council...

76 FR 28733 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-18

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a Web based meeting of the... the Gulf of Mexico Fishery Management Council's Web site at http://www.gulfcouncil.org for instructions. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...

MODELING OF THE MISSISSIPPI SOUND AND ADJOINING RIVERS, BAYS, AND SHELF WATERS

EPA Science Inventory

The Gulf of Mexico and its coastal watersheds are a complex ecosystem that is receiving negative impacts from human activities both in the Gulf and its watersheds. The Gulf of Mexico Program (GMP), as a multi-agency effort, is working with the Gulf States, citizens, and private ...

3 CFR 13626 - Executive Order 13626 of September 10, 2012. Gulf Coast Ecosystem Restoration

Code of Federal Regulations, 2013 CFR

2013-01-01

... information relevant to Gulf Coast restoration, including through research, modeling, and monitoring; and..., planning, and the exchange of information in order to better implement Gulf Coast ecosystem restoration and... Ecosystem Restoration Council (Gulf Restoration Council), which will build upon the Task Force's already...

Department of Veterans Affairs, Gulf War Veterans’ Illnesses Task Force to the Secretary of Veterans Affairs

DTIC Science & Technology

2010-09-29

estimate for FY10 includes 40% of MRI imaging equipment upgrade at San Francisco for Gulf War research and use of unobligated FY2009 UTSW Contract funds...atrophy. (2) Explore the sensitivity of these tests to the localization of focal brain damage as confirmed on magnetic resonance imaging ( MRI ) in...2004 Gulf War RFA Effects of Gulf War Illness on Brain Structure, Function and Metabolism: MRI /MRS at 4 Tesla Gulf War Veterans Determine if

Department of Veterans Affairs Gulf War Veterans’ Illnesses Task Force to the Secretary of Veterans Affairs

DTIC Science & Technology

2010-09-29

estimate for FY10 includes 40% of MRI imaging equipment upgrade at San Francisco for Gulf War research and use of unobligated FY2009 UTSW Contract...atrophy. (2) Explore the sensitivity of these tests to the localization of focal brain damage as confirmed on magnetic resonance imaging ( MRI ) in...16 2004 Gulf War RFA Effects of Gulf War Illness on Brain Structure, Function and Metabolism: MRI /MRS at 4 Tesla Gulf War Veterans Determine

Complexity and approximability of quantified and stochastic constraint satisfaction problems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hunt, H. B.; Stearns, R. L.; Marathe, M. V.

2001-01-01

Let D be an arbitrary (not necessarily finite) nonempty set, let C be a finite set of constant symbols denoting arbitrary elements of D, and let S be an arbitrary finite set of finite-arity relations on D. We denote the problem of determining the satisfiability of finite conjunctions of relations in S applied to variables (to variables and symbols in C) by SAT(S) (by SAT{sub c}(S)). Here, we study simultaneously the complexity of and the existence of efficient approximation algorithms for a number of variants of the problems SAT(S) and SAT{sub c}(S), and for many different D, C, and S.more » These problem variants include decision and optimization problems, for formulas, quantified formulas stochastically-quantified formulas. We denote these problems by Q-SAT(S), MAX-Q-SAT(S), S-SAT(S), MAX-S-SAT(S) MAX-NSF-Q-SAT(S) and MAX-NSF-S-SAT(S). The main contribution is the development of a unified predictive theory for characterizing the the complexity of these problems. Our unified approach is based on the following basic two basic concepts: (i) strongly-local replacements/reductions and (ii) relational/algebraic representability. Let k {ge} 2. Let S be a finite set of finite-arity relations on {Sigma}{sub k} with the following condition on S: All finite arity relations on {Sigma}{sub k} can be represented as finite existentially-quantified conjunctions of relations in S applied to variables (to variables and constant symbols in C), Then we prove the following new results: (1) The problems SAT(S) and SAT{sub c}(S) are both NQL-complete and {le}{sub logn}{sup bw}-complete for NP. (2) The problems Q-SAT(S), Q-SAT{sub c}(S), are PSPACE-complete. Letting k = 2, the problem S-SAT(S) and S-SAT{sub c}(S) are PSPACE-complete. (3) {exists} {epsilon} > 0 for which approximating the problems MAX-Q-SAT(S) within {epsilon} times optimum is PSPACE-hard. Letting k =: 2, {exists} {epsilon} > 0 for which approximating the problems MAX-S-SAT(S) within {epsilon} times optimum is PSPACE-hard. (4) {forall} {epsilon} > 0 the problems MAX-NSF-Q-SAT(S) and MAX-NSF-S-SAT(S), are PSPACE-hard to approximate within a factor of n{sup {epsilon}} times optimum. These results significantly extend the earlier results by (i) Papadimitriou [Pa851] on complexity of stochastic satisfiability, (ii) Condon, Feigenbaum, Lund and Shor [CF+93, CF+94] by identifying natural classes of PSPACE-hard optimization problems with provably PSPACE-hard {epsilon}-approximation problems. Moreover, most of our results hold not just for Boolean relations: most previous results were done only in the context of Boolean domains. The results also constitute as a significant step towards obtaining a dichotomy theorems for the problems MAX-S-SAT(S) and MAX-Q-SAT(S): a research area of recent interest [CF+93, CF+94, Cr95, KSW97, LMP99].« less

DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman.

PubMed

Khalaji-Pirbalouty, Valiallah; Raupach, Michael J

2016-11-27

Two species of Atarbolana (Cirolanidae: Isopoda) from the intertidal zone of the Gulf of Oman and the Persian Gulf were studied and redescribed. The known distribution of this small genus is limited to the northern areas of the Indian Ocean, from the Pakistan coasts to the Persian Gulf. The analyses of DNA barcodes as well as detailed morphological studies clearly support the existence of three distinct Atarbolana species along the coastal zone of the Persian Gulf and northern Arabian Sea. Furthermore, A. dasycolus Yasmeen, 2004 is synonymized with A. setosa Javed and Yasmeen, 1989.

Chemical warfare and the Gulf War: a review of the impact on Gulf veterans' health.

PubMed

Riddle, James R; Brown, Mark; Smith, Tyler; Ritchie, Elspeth Cameron; Brix, Kelley Ann; Romano, James

2003-08-01

It is unlikely that Gulf War veterans are suffering chronic effects from illnesses caused by chemical warfare nerve agent exposure. Extensive investigation and review by several expert panels have determined that no evidence exists that chemical warfare nerve agents were used during the Gulf War. At no time before, during, or after the war was there confirmation of symptoms among anyone, military or civilian, caused by chemical warfare nerve agent exposure. However, studies of Gulf War veterans have found belief that chemical weapons were used, significantly associated with both severe and mild-moderate illnesses. The psychological impact of a chemical warfare attack, either actual or perceived, can result in immediate and long-term health consequences. The deployment or war-related health impact from life-threatening experiences of the Gulf War, including the perceived exposure to chemical warfare agents, should be considered as an important cause of morbidity among Gulf War veterans.

The growth of coral reef science in the Gulf: a historical perspective.

PubMed

Burt, John A

2013-07-30

Coral reef science has grown exponentially in recent decades in the Gulf. Analysis of literature from 1950 to 2012 identified 270 publications on coral reefs in the Gulf, half of which were published in just the past decade. This paper summarizes the growth and evolution of coral reef science in the Gulf by examining when, where and how research has been conducted on Gulf reefs, who conducted that research, and what themes and taxa have dominated scientific interest. The results demonstrate that there has been significant growth in our understanding of the valuable coral reefs of the Gulf, but also highlight the fact that we are documenting an increasingly degraded ecosystem. Reef scientists must make a concerted effort to improve dialogue with regional reef management and decision-makers if we are to stem the tide of decline in coral reefs in the Gulf. Copyright © 2013 Elsevier Ltd. All rights reserved.

Definition of Greater Gulf Basin Lower Cretaceous and Upper Cretaceous Lower Cenomanian Shale Gas Assessment Unit, United States Gulf of Mexico Basin Onshore and State Waters

USGS Publications Warehouse

Dennen, Kristin O.; Hackley, Paul C.

2012-01-01

An assessment unit (AU) for undiscovered continuous “shale” gas in Lower Cretaceous (Aptian and Albian) and basal Upper Cretaceous (lower Cenomanian) rocks in the USA onshore Gulf of Mexico coastal plain recently was defined by the U.S. Geological Survey (USGS). The AU is part of the Upper Jurassic-Cretaceous-Tertiary Composite Total Petroleum System (TPS) of the Gulf of Mexico Basin. Definition of the AU was conducted as part of the 2010 USGS assessment of undiscovered hydrocarbon resources in Gulf Coast Mesozoic stratigraphic intervals. The purpose of defining the Greater Gulf Basin Lower Cretaceous Shale Gas AU was to propose a hypothetical AU in the Cretaceous part of the Gulf Coast TPS in which there might be continuous “shale” gas, but the AU was not quantitatively assessed by the USGS in 2010.

Transgenic studies reveal the positive role of LeEIL-1 in regulating shikonin biosynthesis in Lithospermum erythrorhizon hairy roots.

PubMed

Fang, Rongjun; Zou, Ailan; Zhao, Hua; Wu, Fengyao; Zhu, Yu; Zhao, Hu; Liao, Yonghui; Tang, Ren-Jie; Pang, Yanjun; Yang, Rongwu; Wang, Xiaoming; Qi, Jinliang; Lu, Guihua; Yang, Yonghua

2016-05-26

The phytohormone ethylene (ET) is a key signaling molecule for inducing the biosynthesis of shikonin and its derivatives, which are secondary metabolites in Lithospermum erythrorhizon. Although ETHYLENE INSENSITIVE3 (EIN3)/EIN3-like proteins (EILs) are crucial transcription factors in ET signal transduction pathway, the possible function of EIN3/EIL1 in shikonin biosynthesis remains unknown. In this study, by targeting LeEIL-1 (L. erythrorhizon EIN3-like protein gene 1) at the expression level, we revealed the positive regulatory effect of LeEIL-1 on shikonin formation. The mRNA level of LeEIL-1 was significantly up-regulated and down-regulated in the LeEIL-1-overexpressing hairy root lines and LeEIL-1-RNAi hairy root lines, respectively. Specifically, LeEIL-1 overexpression resulted in increased transcript levels of the downstream gene of ET signal transduction pathway (LeERF-1) and a subset of genes for shikonin formation, excretion and/or transportation (LePAL, LeC4H-2, Le4CL-1, HMGR, LePGT-1, LeDI-2, and LePS-2), which was consistent with the enhanced shikonin contents in the LeEIL-1-overexpressing hairy root lines. Conversely, LeEIL-1-RNAi dramatically repressed the expression of the above genes and significantly reduced shikonin production. The results revealed that LeEIL-1 is a positive regulator of the biosynthesis of shikonin and its derivatives in L. erythrorhizon hairy roots. Our findings gave new insights into the molecular regulatory mechanism of ET in shikonin biosynthesis. LeEIL-1 could be a crucial target gene for the genetic engineering of shikonin biosynthesis.

Groundwater-flow modeling in the Yucatan karstic aquifer, Mexico

NASA Astrophysics Data System (ADS)

González-Herrera, Roger; Sánchez-y-Pinto, Ismael; Gamboa-Vargas, José

2002-09-01

The current conceptual model of the unconfined karstic aquifer in the Yucatan Peninsula, Mexico, is that a fresh-water lens floats above denser saline water that penetrates more than 40 km inland. The transmissivity of the aquifer is very high so the hydraulic gradient is very low, ranging from 7-10 mm/km through most of the northern part of the peninsula. The computer modeling program AQUIFER was used to investigate the regional groundwater flow in the aquifer. The karstified zone was modeled using the assumption that it acts hydraulically similar to a granular, porous medium. As part of the calibration, the following hypotheses were tested: (1) karstic features play an important role in the groundwater-flow system; (2) a ring or belt of sinkholes in the area is a manifestation of a zone of high transmissivity that facilitates the channeling of groundwater toward the Gulf of Mexico; and (3) the geologic features in the southern part of Yucatan influence the groundwater-flow system. The model shows that the Sierrita de Ticul fault, in the southwestern part of the study area, acts as a flow barrier and head values decline toward the northeast. The modeling also shows that the regional flow-system dynamics have not been altered despite the large number of pumping wells because the volume of water pumped is small compared with the volume of recharge, and the well-developed karst system of the region has a very high hydraulic conductivity. Résumé. Le modèle conceptuel classique de l'aquifère karstique libre de la péninsule du Yucatan (Mexique) consiste en une lentille d'eau douce flottant sur une eau salée plus dense qui pénètre à plus de 40 km à l'intérieur des terres. La transmissivité de l'aquifère est très élevée, en sorte que le gradient hydraulique est très faible, compris entre 7 et 10 mm/km dans la plus grande partie du nord de la péninsule. Le modèle AQUIFER a été utilisé pour explorer les écoulements souterrains régionaux dans cet aquifère. La zone karstifiée a été modélisée en posant l'hypothèse qu'il fonctionne hydrauliquement comme un milieu poreux granulaire. Au cours de la calibration, les hypothèses suivantes ont été testées: (1) les phénomènes karstiques jouent un rôle important dans le système aquifère, (2) un anneau ou une ceinture de dépressions dans la région est la manifestation d'une zone à forte transmissivité qui permet l'écoulement en conduits de l'eau souterraine en direction du Golfe du Mexique, et (3) la situation géologique dans la partie sud du Yucatan détermine les écoulements souterrains. Le modèle montre que la faille de la Sierrita de Ticul, dans la partie sud-ouest de la région étudiée, joue le rôle de barrière et que les valeurs de la piézométrie décroissent en direction du nord-est. La modélisation montre également que la dynamique du système aquifère à l'échelle régionale n'a pas été modifiée malgré le grand nombre de puits de pompage, parce que le volume pompé est faible en comparaison du volume de recharge; en outre, le réseau karstique très bien développé dans cette région possède une très forte conductivité hydraulique. Resumen. El modelo conceptual actual del acuífero cárstico no confinado de la Península de Yucatán (México) es el de un lentejón de agua dulce flotando sobre agua salada, más densa, la cual penetra más de 40 kilómetros tierra adentro. Debido a la alta conductividad hidráulica del acuífero, existe un gradiente hidráulico muy bajo cuyo rango está entre 7 y 10 milímetros por kilómetro en la porción norte de la península. Se utilizó el código AQUIFER para investigar el sistema de flujo de las aguas subterráneas a escala regional en el acuífero. La zona carstificada se modeló suponiendo que actúa hidráulicamente como un medio poroso granular. Como parte de la calibración, se probaron las siguientes hipótesis: (1) las características cársticas desempeñan un papel importante en el sistema de flujo de agua subterránea (2) un anillo o cinturón de sumideros en el área es una manifestación de una zona de alta transmisividad que conduce las aguas subterráneas hacia el Golfo de México y (3) las propiedades geológicas de la porción sur de Yucatán influyen en el sistema de flujo de agua subterránea. El modelo demostró que la falla de la Sierrita de Ticul, situada en el sudoeste de la zona de estudio, actúa como una barrera al flujo, y que los niveles piezométricos disminuyen hacia el nordeste. La modelación también mostró que la dinámica del sistema de flujo regional no ha sido alterada a pesar de la gran cantidad de captaciones, ya que el volumen extraído es pequeño en comparación con la recarga al acuífero además, el sistema cárstico de la región, bien desarrollado, posee una conductividad hidráulica muy elevada.

33 CFR 207.187 - Gulf Intracoastal Waterway, Tex.; special floodgate, lock and navigation regulations.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Gulf Intracoastal Waterway on the Colorado River. The legend states “DO NOT PROCEED BEYOND THIS POINT... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf Intracoastal Waterway, Tex... Gulf Intracoastal Waterway, Tex.; special floodgate, lock and navigation regulations. (a) Application...

33 CFR 207.187 - Gulf Intracoastal Waterway, Tex.; special floodgate, lock and navigation regulations.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Gulf Intracoastal Waterway on the Colorado River. The legend states “DO NOT PROCEED BEYOND THIS POINT... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf Intracoastal Waterway, Tex... Gulf Intracoastal Waterway, Tex.; special floodgate, lock and navigation regulations. (a) Application...

77 FR 23661 - Fisheries of the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-20

... . SUPPLEMENTARY INFORMATION: The South Atlantic, Gulf of Mexico, and Caribbean Fishery Management Councils; in conjunction with NOAA Fisheries, the Atlantic States Marine Fisheries Commission, and the Gulf States Marine... the South Atlantic, Gulf of Mexico, and Caribbean; Southeast Data, Assessment, and Review (SEDAR...

50 CFR 622.90 - Permits.

Code of Federal Regulations, 2014 CFR

2014-10-01

..., DEPARTMENT OF COMMERCE FISHERIES OF THE CARIBBEAN, GULF OF MEXICO, AND SOUTH ATLANTIC Red Drum Fishery of the Gulf of Mexico § 622.90 Permits. (a) Dealer permits and conditions—(1) Permits. For a dealer to first receive Gulf red drum harvested in or from the EEZ, a Gulf and South Atlantic dealer permit must be issued...

The Arabian Gulf and Security Policy: The Past as Present, the Present as Future

DTIC Science & Technology

2009-04-01

permeates the Green Zone. Recent cooperation between the Maliki government and Sunni groups represents the tactical “divide-and-conquer” approach to... Kegan Paul, 2005), 76-77. 42. Zahlan, Modern Gulf States, 65. 43. Peck, Gulf Arab States, 38. 44. Zahlan, Modern Gulf States, 67. 70 JSOU Report

75 FR 75173 - Gulf of Mexico Executive Council Notice of Charter Renewal

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-02

... ENVIRONMENTAL PROTECTION AGENCY [FRL-9234-8] Gulf of Mexico Executive Council Notice of Charter... provisions of the Federal Advisory Committee Act (FACA), 5 U.S.C. App. 2, the Gulf of Mexico Executive... living resources of the Gulf of Mexico. FOR FURTHER INFORMATION CONTACT: Gloria Car, Designated Federal...

50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.

Code of Federal Regulations, 2010 CFR

2010-10-01

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76 FR 30705 - Gulf of Mexico Citizen Advisory Committee; Request for Nominations to the Gulf of Mexico Citizen...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-26

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78 FR 6404 - Agency Information Collection (Survey of Chronic Gastrointestinal Illness in Persian Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-30

...: Approximately 25 percent military troops who were deployed in the first Persian Gulf War returned with... of Chronic Gastrointestinal Illness in Persian Gulf Veterans) Activities Under OMB Review AGENCY.... Survey of Chronic Gastrointestinal Illness in Persian Gulf Veterans, VA Form 10-21092a. b. VA Research...

40 CFR 408.260 - Applicability; description of the Atlantic and Gulf Coast hand-shucked oyster processing...

Code of Federal Regulations, 2010 CFR

2010-07-01

... Atlantic and Gulf Coast hand-shucked oyster processing subcategory. 408.260 Section 408.260 Protection of... SEAFOOD PROCESSING POINT SOURCE CATEGORY Atlantic and Gulf Coast Hand-Shucked Oyster Processing Subcategory § 408.260 Applicability; description of the Atlantic and Gulf Coast hand-shucked oyster processing...

50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 50 Wildlife and Fisheries 12 2013-10-01 2013-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...

50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 50 Wildlife and Fisheries 10 2011-10-01 2011-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...

50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 50 Wildlife and Fisheries 12 2014-10-01 2014-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...

50 CFR 600.1310 - New England and Gulf of Mexico Individual Fishing Quota Referenda.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 50 Wildlife and Fisheries 12 2012-10-01 2012-10-01 false New England and Gulf of Mexico Individual... PROVISIONS Limited Access Privilege Programs § 600.1310 New England and Gulf of Mexico Individual Fishing... Fishery Management Council (NEFMC) and the Gulf of Mexico Fishery Management Council (GMFMC). These...

77 FR 66818 - Fisheries of the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Assessment...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-07

... Gulf of Mexico Spanish Mackerel and Cobia AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia assessment webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish...

76 FR 58783 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-22

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef Fish Advisory.... on Friday, October 14, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico...

76 FR 37063 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-24

... meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Red... held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N...

75 FR 80041 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-21

...: The Gulf of Mexico Fishery Management Council will convene a public meeting of the Outreach and... be held at the Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. Council address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100...

75 FR 74008 - Gulf of Mexico Fishery Management Council; Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-30

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a public meeting of the Florida.... Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL... Florida/Alabama group is part of a three unit Habitat Protection Advisory Panel (AP) of the Gulf of Mexico...

76 FR 60807 - Gulf of Mexico Fishery Management Council; Public Meeting; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-30

... public meeting. SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Reef... conclude by 12 p.m. on Friday, October 14, 2011. ADDRESSES: The meeting will be held at the Gulf of Mexico... INFORMATION CONTACT: Mr. Steven Atran, Population Dynamics Statistician; Gulf of Mexico Fishery Management...

75 FR 11846 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-12

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef Fish..., March 31 and conclude by 4:30 p.m. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... FURTHER INFORMATION CONTACT: Dr. Assane Diagne, Economist; Gulf of Mexico Fishery Management Council...

75 FR 39495 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-09

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Standing and Special... the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council, 2203 N. [[Page 39496...

76 FR 56171 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-12

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Headboat... meeting will be held at the Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL 33607; telephone: (813) 348-1630. Council address: Gulf of Mexico Fishery Management Council...

77 FR 60319 - Harbor Porpoise Take Reduction Plan; Coastal Gulf of Maine Closure Area Established With a...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-03

...-XC099 Harbor Porpoise Take Reduction Plan; Coastal Gulf of Maine Closure Area Established With a... Atmospheric Administration (NOAA), Commerce. ACTION: Establishment of the Coastal Gulf of Maine Closure Area... Service (NMFS) announces the establishment of the Coastal Gulf of Maine Closure Area under the Harbor...

Sea snakes (Elapidae, Hydrophiinae) in their westernmost extent: an updated and illustrated checklist and key to the species in the Persian Gulf and Gulf of Oman

PubMed Central

Rezaie-Atagholipour, Mohsen; Ghezellou, Parviz; Hesni, Majid Askari; Dakhteh, Seyyed Mohammad Hashem; Ahmadian, Hooman; Vidal, Nicolas

2016-01-01

Abstract The Persian Gulf is known as the westernmost distribution limit for sea snakes, except for Hydrophis platurus (Linnaeus, 1766) that reaches southeastern Africa. Previous identification guides for sea snakes of the Persian Gulf and its adjacent waters in the Gulf of Oman were based on old data and confined mostly to written descriptions. Therefore, a series of field surveys were carried out in 2013 and 2014 through Iranian coastal waters of both gulfs to provide a comprehensive sampling of sea snakes in the area. This paper presents an illustrated and updated checklist and identification tool for sea snakes in the Persian Gulf and Gulf of Oman, which are based on new material and a review of the literature. This checklist includes ten species of marine hydrophiines, of which one, Microcephalophis cantoris (Günther, 1864), is a new record for the area. All specimens examined herein are deposited and available at the Zoological Museum of Shahid Bahonar University of Kerman, Kerman province, Iran. PMID:27843383

Diel activity of Gulf of Mexico sturgeon in a northwest Florida bay

USGS Publications Warehouse

Wrege, B.M.; Duncan, M.S.; Isely, J.J.

2011-01-01

In this paper, we assess patterns in activity of Gulf of Mexico sturgeon Acipenser oxyrinchus desotoi over a 24-h period in the Pensacola bay system, Florida. Although seasonal migration of sturgeon is well documented, little information is available pertaining to daily variation in activity. We surgically implanted 58 Gulf sturgeon with acoustic transmitters in the Escambia (n=26), Yellow (n=8), Blackwater (n=12) and Choctawhatchee rivers (n=12) in June, July, September and October 2005. Gulf sturgeon location was monitored using an array of 56 fixed-station acoustic receivers. The relationship between frequency of Gulf sturgeon observations recorded on all acoustic receivers and time of day for all seasons combined indicated a strong diel activity pattern. Gulf sturgeon were frequently detected at night in all seasons with the exception of summer. Consecutive hourly observations indicated lateral movement of Gulf sturgeon between independent acoustic receivers on 15% of all observations of individuals. The use of an acoustic receiver array not only provides continuous data within a defined area, but also provides insight into nocturnal behavior of Gulf sturgeon not previously identified. ?? 2011 Blackwell Verlag, Berlin.

Clinical findings of the second 1000 UK Gulf War veterans who attended the Ministry of Defence's Medical Assessment Programme.

PubMed

Lee, H A; Gabriel, R; Bale, A J; Bolton, P; Blatchley, N F

2001-06-01

To review the diagnoses made in the second 1000 veterans of the Gulf conflict 1990-91 seen in the Ministry of Defence's Gulf Veterans' Medical Assessment Programme and to determine the main conditions related to Gulf service. Case series of 1000 consecutive Gulf veterans who presented to the programme between 25 February 1997 and 19 February 1998. Gulf War veterans. Assessment of the patient's health status. Diagnosis of medical and psychiatric conditions using ICD-10. 204 patients were unwell. 309 patients had organic disease, of whom 248 were well, 252 had psychiatric conditions which remained active in 173. The remaining 79, now well, had had psychiatric disorders following Gulf service. The principal psychiatric diagnosis was post traumatic stress disorder and the majority arose as a result of Gulf service. 796 (80%) veterans were well. There were 309 (31%) patients with organic disease. 252 (25%) veterans had psychiatric conditions of which 173 (69%) had an active diagnosed disorder and post traumatic stress disorder was the predominant condition. The pattern of disease is similar to that seen in NHS practice. We found, like others, no evidence to support a unique Gulf War syndrome. Post conflict illnesses have many common features.

Symptoms and medical conditions in Australian veterans of the 1991 Gulf War: relation to immunisations and other Gulf War exposures.

PubMed

Kelsall, H L; Sim, M R; Forbes, A B; Glass, D C; McKenzie, D P; Ikin, J F; Abramson, M J; Blizzard, L; Ittak, P

2004-12-01

To investigate whether Australian Gulf War veterans have a higher than expected prevalence of recent symptoms and medical conditions that were first diagnosed in the period following the 1991 Gulf War; and if so, whether these effects were associated with exposures and experiences that occurred in the Gulf War. Cross-sectional study of 1456 Australian Gulf War veterans and a comparison group who were in operational units at the time of the Gulf War, but were not deployed to that conflict (n = 1588). A postal questionnaire was administered and the likelihood of the diagnosis of self-reported medical conditions was assessed and rated by a medical practitioner. Gulf War veterans had a higher prevalence of all self-reported health symptoms than the comparison group, and more of the Gulf War veterans had severe symptoms. Increased symptom reporting was associated with several exposures, including having more than 10 immunisations, pyridostigmine bromide tablets, anti-biological warfare tablets, pesticides, insect repellents, reportedly being in a chemical weapons area, and stressful military service experiences in a strong dose-response relation. Gulf War veterans reported psychological (particularly post-traumatic stress disorder), skin, eye, and sinus conditions first diagnosed in 1991 or later more commonly than the comparison group. Over 90% of medical conditions reported by both study groups were rated by a medical practitioner as having a high likelihood of diagnosis. More than 10 years after the 1991 Gulf War, Australian veterans self-report all symptoms and some medical conditions more commonly than the comparison group. Further analysis of the severity of symptoms and likelihood of the diagnosis of medical conditions suggested that these findings are not due to over-reporting or to participation bias.

Gulfs of Suez and Aqaba: New insights from recent satellite-marine potential field data

NASA Astrophysics Data System (ADS)

Almalki, Khalid A.; Mahmud, Syed A.

2018-01-01

Previous models and interpretations of crustal geometry and the nature of the crust under the Gulfs of Suez and Aqaba have generally been based on a local or small scale and have been limited due to a lack of data. The few studies that present larger scale crustal and uppermost mantle structure were dependent on one type of data with no consideration of other geological and/or geophysical features. Satellite-marine potential field data provide for the first time a full coverage dataset of the Gulfs of Suez and Aqaba as well as the Sinai area at the same scale which allows for a better understanding of crustal domains and geometry and the interplay between tectonic events. To that end, our forward models of magnetic and gravity data constrained by seismic data and available geological information in this area suggest that the crustal domains in the Gulf of Aqaba are more complicated than those in the Gulf of Suez. Our result supports continental rifting under most of the Gulf of Suez and a combination of transitional and continental crusts under the Gulf of Aqaba. Yet, there is no evidence of oceanic segment development in these gulfs. Regardless of oceanic or transitional crust, the models support a link between the Arabia and Sinai plates at the central Gulf of Aqaba. The data also support that Red Sea tectonism has no connection to or influence on both gulfs. The result suggests a continuation of lithological elements from land into the eastern part of the Gulf of Suez. Our synthesis and interpretations may play an important role in the reassessment of the tectonic history and extension of this important rift system.

Symptoms and medical conditions in Australian veterans of the 1991 Gulf War: relation to immunisations and other Gulf War exposures

PubMed Central

Kelsall, H; Sim, M; Forbes, A; Glass, D; McKenzie, D; Ikin, J; Abramson, M; Blizzard, L; Ittak, P

2004-01-01

Aims: To investigate whether Australian Gulf War veterans have a higher than expected prevalence of recent symptoms and medical conditions that were first diagnosed in the period following the 1991 Gulf War; and if so, whether these effects were associated with exposures and experiences that occurred in the Gulf War. Methods: Cross-sectional study of 1456 Australian Gulf War veterans and a comparison group who were in operational units at the time of the Gulf War, but were not deployed to that conflict (n = 1588). A postal questionnaire was administered and the likelihood of the diagnosis of self-reported medical conditions was assessed and rated by a medical practitioner. Results: Gulf War veterans had a higher prevalence of all self-reported health symptoms than the comparison group, and more of the Gulf War veterans had severe symptoms. Increased symptom reporting was associated with several exposures, including having more than 10 immunisations, pyridostigmine bromide tablets, anti-biological warfare tablets, pesticides, insect repellents, reportedly being in a chemical weapons area, and stressful military service experiences in a strong dose-response relation. Gulf War veterans reported psychological (particularly post-traumatic stress disorder), skin, eye, and sinus conditions first diagnosed in 1991 or later more commonly than the comparison group. Over 90% of medical conditions reported by both study groups were rated by a medical practitioner as having a high likelihood of diagnosis. Conclusion: More than 10 years after the 1991 Gulf War, Australian veterans self-report all symptoms and some medical conditions more commonly than the comparison group. Further analysis of the severity of symptoms and likelihood of the diagnosis of medical conditions suggested that these findings are not due to over-reporting or to participation bias. PMID:15550607

Nereididae (Annelida: Phyllodocida) of the Persian Gulf and Gulf of Oman, including description of two new species and 11 new records.

PubMed

Bonyadi-Naeini, Alieh; Rastegar-Pouyani, Nasrullah; Rastegar-Pouyani, Eskandar; Glasby, Christopher J; Rahimian, Hassan

2017-03-17

Currently, only 31 nereidid species are known from the Persian Gulf and Gulf of Oman. The present study was carried out in order to investigate the poorly known diversity of nereidid polychaetes from seas of the southern coasts of Iran. Specimens were collected from 23 locations along the intertidal zones of the two water bodies. Among the 26 species found: two are new, and are described here, including Simplisetia qeshmensis sp. nov. and Neanthes biparagnatha sp. nov.; 11 are new geographical records. Neanthes biparagnatha sp. nov. is most similar to N. deplanata (Mohammed, 1971), which is also found in the Persian Gulf, but can be most easily distinguished from it by the presence of bars in addition to cones in Area IV of the pharynx. Simplisetia qeshmensis sp. nov. may be distinguished from its closest congener, S. erythraeensis (Fauvel, 1918), also reported from the Persian Gulf, by having a greater number of paragnaths in Area I of the pharynx, an additional type of chaeta (homogomph spinigers) in the ventral neuropodial fascicle and having a reduced notopodial lobe in posterior chaetigers. The list of new records includes: one species from both areas, Neanthes glandicincta (Southern, 1921); eight species from the Persian Gulf, Leonnates decipiens Fauvel, 1929, Neanthes acuminata (Ehlers, 1868), Neanthes sp., Neanthes sp. cf. N. acuminata, Nereis sp. cf. N. pelagica Linnaeus, 1758, Perinereis cultrifera (Grube, 1840) species complex., Pseudonereis trimaculata (Horst, 1924), Pseudonereis sp. cf. P. variegata (Grube, 1857) and two from the Gulf of Oman, Leonnates persicus Wesenberg-Lund, 1949 and Perinereis kuwaitensis Mohammed, 1970. The present study brings to 40 the number of nereidid species currently known from the Persian Gulf and Gulf of Oman. A taxonomic key to nereidid species from the intertidal zones of the Persian Gulf and Gulf of Oman is presented to facilitate future investigations.

Profil anatomopathologique du cancer du sein dans le cap bon tunisien

PubMed Central

Sahraoui, Ghada; Khanchel, Fatma; Chelbi, Emna

2017-01-01

Le cancer du sein est le cancer le plus fréquent de la femme en Tunisie et dans le monde. Dans le Cap Bon tunisien, les particularités anatomopathologiques de ce cancer n'ont pas été précisées auparavant. Leur connaissance est nécessaire pour l'adaptation des systèmes de prévention et de soins dans la région. Le but de notre étude était de déterminer le profil anatomopathologique des carcinomes mammaires dans l'unique laboratoire d'anatomie pathologique publique de la région. Il s'agissait d'une étude descriptive rétrospective des carcinomes mammaires diagnostiqués chez 116 malades dans notre laboratoire sur une période de 5 ans de Juillet 2010 à Juillet 2015. Notre étude a inclus 116 patientes. L'âge moyen était de 51 ans. La taille tumorale histologique moyenne était de 31 mm. Le diagnostic initial était posé sur pièce de tumorectomie dans 83% des cas. Le carcinome infiltrant de type non spécifique était le type histologique le plus fréquent. Le grade SBR III était majoritaire. L'invasion lympho-vasculaire était présente dans 33% des cas. Le curage axillaire était positif dans 72% des cas. Les récepteurs hormonaux étaient positifs dans 73% des cas. Les récepteurs de l'Her2-Neu étaient surexprimés dans 19% des cas. Le ki67 était ≥ 14% dans 38%. Le sous-type moléculaire le plus fréquent était le luminal A. Le carcinome mammaire dans la région du Cap Bon se caractérise par sa survenue à un âge jeune, son importante taille tumorale et la fréquence de facteurs histopronostiques péjoratifs. PMID:28450990

Smoking is highly associated with discoid lupus erythematosus and lupus erythematosus tumidus: analysis of 405 patients.

PubMed

Böckle, B C; Sepp, N T

2015-06-01

Environmental factors appear to play a role in the pathogenesis of lupus erythematosus (LE). To determine the association between cigarette smoking and various types of cutaneous LE. Retrospective descriptive study at a dermatology clinic of a tertiary referral hospital. All patients diagnosed with cutaneous and/or systemic LE from January 2000 to December 2012 at the outpatient clinic for dermatological autoimmune diseases were analyzed. 405 patients were diagnosed with LE. Smokers were more common among patients with cutaneous LE, especially those with LE tumidus or discoid LE. The frequency of cigarette smokers was not significantly higher among patients with other LE-specific skin lesions and patients with systemic LE compared to the general population. Smoking at the onset of disease was associated with LE tumidus (odds ratio OR 4.5), discoid LE (OR 2.05), the male gender (OR 3.31), age < 50 years (OR 1.03), and photosensitivity (OR 2.07). A retrospective descriptive study at a tertiary referral hospital. Smoking is highly associated with cutaneous LE, but not systemic LE. Various risk factors appear to be involved in the pathogenesis of cutaneous and systemic LE. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

50 CFR 622.1 - Purpose and scope.

Code of Federal Regulations, 2014 CFR

2014-10-01

... for Coral, Coral Reefs, and Live/Hard Bottom Habitats of the South Atlantic Region SAFMC South Atlantic.5 FMP for Coral and Coral reefs of the Gulf of Mexico GMFMC Gulf. FMP for Corals and Reef... CFMC Caribbean. FMP for the Red Drum Fishery of the Gulf of Mexico GMFMC Gulf.1 FMP for the Reef Fish...

50 CFR 622.1 - Purpose and scope.

Code of Federal Regulations, 2013 CFR

2013-10-01

... for Coral, Coral Reefs, and Live/Hard Bottom Habitats of the South Atlantic Region SAFMC South Atlantic.5 FMP for Coral and Coral reefs of the Gulf of Mexico GMFMC Gulf. FMP for Corals and Reef... CFMC Caribbean. FMP for the Red Drum Fishery of the Gulf of Mexico GMFMC Gulf.1 FMP for the Reef Fish...

30 CFR 519.413 - How will the coastal political subdivisions of Gulf producing States share in the qualified OCS...

Code of Federal Regulations, 2012 CFR

2012-07-01

... Gulf producing States share in the qualified OCS revenues? 519.413 Section 519.413 Mineral Resources... coastal political subdivisions of Gulf producing States share in the qualified OCS revenues? Of the revenues allocated to a Gulf producing State, 20 percent will be distributed to the coastal political...

30 CFR 519.413 - How will the coastal political subdivisions of Gulf producing States share in the qualified OCS...

Code of Federal Regulations, 2014 CFR

2014-07-01

... Gulf producing States share in the qualified OCS revenues? 519.413 Section 519.413 Mineral Resources... coastal political subdivisions of Gulf producing States share in the qualified OCS revenues? Of the revenues allocated to a Gulf producing State, 20 percent will be distributed to the coastal political...

30 CFR 519.413 - How will the coastal political subdivisions of Gulf producing States share in the qualified OCS...

Code of Federal Regulations, 2013 CFR

2013-07-01

... Gulf producing States share in the qualified OCS revenues? 519.413 Section 519.413 Mineral Resources... coastal political subdivisions of Gulf producing States share in the qualified OCS revenues? Of the revenues allocated to a Gulf producing State, 20 percent will be distributed to the coastal political...

30 CFR 219.415 - How will bonus and royalty credits affect revenues allocated to Gulf producing States?

Code of Federal Regulations, 2011 CFR

2011-07-01

... revenues allocated to Gulf producing States? 219.415 Section 219.415 Mineral Resources BUREAU OF OCEAN... and royalty credits affect revenues allocated to Gulf producing States? If bonus and royalty credits issued under Section 104(c) of the Gulf of Mexico Energy Security Act are used to pay bonuses or...

76 FR 75488 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-02

... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as prepared and... the lobster species contained within the fishery management unit; establishes an annual catch limit...

76 FR 59102 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-23

... Atlantic; Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic; Amendment 10 AGENCY: National... Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of Mexico and South Atlantic (FMP), as... implemented, this rule would revise the lobster species contained within the fishery management unit...

77 FR 40561 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-10

...-BB72 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Amendment 34 AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric... Mexico Fishery Management Council (Council) has submitted Amendment 34 to the Fishery Management Plan for...

33 CFR 207.180 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2013 CFR

2013-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...

33 CFR 207.180 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2014 CFR

2014-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...

Gulf of Mexico

Atmospheric Science Data Center

2014-05-15

article title:  Gulf of Mexico Oil Slick       View ... 22, 2010, the Deepwater Horizon oil platform in the Gulf of Mexico sank in nearly 1,500 meters (4,900 feet) of water after an explosion ... appear lighter blue on the darker blue waters of the Gulf of Mexico. Some clouds are visible in the extreme lower left corner of the image. ...

33 CFR 207.180 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2012 CFR

2012-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and the... DEFENSE NAVIGATION REGULATIONS § 207.180 All waterways tributary to the Gulf of Mexico (except the... with the Gulf of Mexico between St. Marks, Fla., and the Rio Grande, Tex. (both inclusive), and the...

50 CFR 622.373 - Limited access system for charter vessel/headboat permits for Gulf coastal migratory pelagic fish.

Code of Federal Regulations, 2013 CFR

2013-10-01

.../headboat permits for Gulf coastal migratory pelagic fish. 622.373 Section 622.373 Wildlife and Fisheries... for Gulf coastal migratory pelagic fish. (a) No applications for additional charter vessel/headboat permits for Gulf coastal migratory pelagic fish will be accepted. Existing permits may be renewed, are...

50 CFR 622.373 - Limited access system for charter vessel/headboat permits for Gulf coastal migratory pelagic fish.

Code of Federal Regulations, 2014 CFR

2014-10-01

.../headboat permits for Gulf coastal migratory pelagic fish. 622.373 Section 622.373 Wildlife and Fisheries... for Gulf coastal migratory pelagic fish. (a) No applications for additional charter vessel/headboat permits for Gulf coastal migratory pelagic fish will be accepted. Existing permits may be renewed, are...

77 FR 29981 - Fisheries of the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-21

... the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Public Meetings AGENCY: National...: Notice of SEDAR Workshops for Gulf of Mexico red snapper Lutjanus campechanus. SUMMARY: The SEDAR assessment of the Gulf of Mexico stock of red snapper will consist of a series of three workshops: a Data...

77 FR 51771 - Fisheries of the Gulf of Mexico and South Atlantic; Southeast Data, Assessment, and Review (SEDAR...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-27

... Process Webinar for Gulf of Mexico and South Atlantic Spanish Mackerel and Cobia AGENCY: National Marine... of SEDAR 28 Gulf of Mexico and South Atlantic Spanish mackerel and cobia assessment webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico and South Atlantic Spanish mackerel and cobia fisheries...

75 FR 81585 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-28

.... SUMMARY: The Gulf of Mexico Fishery Management Council will convene a meeting of the Ad Hoc Reef Fish..., January 25, 2011, and conclude by 4 p.m. ADDRESSES: The meeting will be held at the Gulf of Mexico Fishery... address: Gulf of Mexico Fishery Management Council, 2203 N. Lois Avenue, Suite 1100, Tampa, FL 33607. FOR...

78 FR 12294 - Gulf of Mexico Fishery Management Council (Council); Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-22

... meetings. SUMMARY: The Gulf of Mexico and South Atlantic Fishery Management Councils will convene a Science.... to 4 p.m. EST on Tuesday, March 12, 2013. ADDRESSES: The meeting will be held at the Gulf of Mexico.... Council address: Gulf of Mexico Fishery Management Council, 2203 North Lois Avenue, Suite 1100, Tampa, FL...

75 FR 54445 - Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-07

... DEPARTMENT OF VETERANS AFFAIRS [OMB Control No. 2900-New (VA Form 10-0488)] Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity: Comment Request AGENCY: Veterans Health Administration, Department of Veterans Affairs. ACTION: Notice. SUMMARY: The...

75 FR 54965 - Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-09

... DEPARTMENT OF VETERANS AFFAIRS [OMB Control No. 2900-New (VA Form 10-0488)] Proposed Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity: Comment Request AGENCY: Veterans Health Administration, Department of Veterans Affairs. ACTION: Notice. SUMMARY: The...

75 FR 70365 - Agency Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-17

... DEPARTMENT OF VETERANS AFFAIRS [OMB Control No. 2900-New (10-0488)] Agency Information Collection (Follow-Up Study of a National Cohort of Gulf War and Gulf Era Veterans) Activity Under OMB Review AGENCY: Veterans Health Administration, Department of Veterans Affairs. ACTION: Notice. SUMMARY: In compliance with...

78 FR 42021 - Atlantic Highly Migratory Species; Commercial Gulf of Mexico Aggregated Large Coastal Shark and...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-15

... Large Coastal Shark and Gulf of Mexico Hammerhead Shark Management Groups AGENCY: National Marine... coastal sharks (LCS) and hammerhead sharks in the Gulf of Mexico region. This action is necessary because... aggregated LCS and Gulf of Mexico hammerhead shark management groups are closed effective 11:30 p.m. local...

Pseudo-beam method for compressive buckling characteristics analysis of space inflatable load-carrying structures

NASA Astrophysics Data System (ADS)

Wang, Changguo; Tan, Huifeng; Du, Xingwen

2009-10-01

This paper extends Le van’s work to the case of nonlinear problem and the complicated configuration. The wrinkling stress distribution and the pressure effects are also included in our analysis. Pseudo-beam method is presented based on the inflatable beam theory to model the inflatable structures as a set of inflatable beam elements with a pre-stressed state. In this method, the discretized nonlinear equations are given based upon the virtual work principle with a 3-node Timoshenko’s beam model. Finite element simulation is performed by using a 3-node BEAM189 element incorporating ANSYS nonlinear program. The pressure effect is equivalent included in our method by modifying beam element cross-section parameters related to pressure. A benchmark example, the bending case of an inflatable cantilever beam, is performed to verify the accuracy of our proposed method. The comparisons reveal that the numerical results obtained with our method are close to open published analytical and membrane finite element results. The method is then used to evaluate the whole buckling and the load-carrying characteristics of an inflatable support frame subjected to a compression force. The wrinkling stress and region characteristics are also shown in the end. This method gives better convergence characteristics, and requires much less computation time. It is very effective to deal with the whole load-carrying ability analytical problems for large scale inflatable structures with complex configuration.

Biomechanical evaluation of sagittal maxillary internal distraction osteogenesis in unilateral cleft lip and palate patient and noncleft patients: a three-dimensional finite element analysis.

PubMed

Olmez, Sultan; Dogan, Servet; Pekedis, Mahmut; Yildiz, Hasan

2014-09-01

To compare the pattern and amount of stress and displacement during maxillary sagittal distraction osteogenesis (DO) between a patient with unilateral cleft lip and palate (UCLP) and a noncleft patient. Three-dimensional finite element models for both skulls were constructed. Displacements of the surface landmarks and stress distributions in the circummaxillary sutures were analyzed after an anterior displacement of 6 mm was loaded to the elements where the inferior plates of the distractor were assumed to be fixed and were below the Le Fort I osteotomy line. In sagittal plane, more forward movement was found on the noncleft side in the UCLP model (-6.401 mm on cleft side and -6.651 mm on noncleft side for the central incisor region). However, similar amounts of forward movement were seen in the control model. In the vertical plane, a clockwise rotation occurred in the UCLP model, whereas a counterclockwise rotation was seen in the control model. The mathematical UCLP model also showed higher stress values on the sutura nasomaxillaris, frontonasalis, and zygomatiomaxillaris on the cleft side than on the normal side. Not only did the sagittal distraction forces produce advancement forces at the intermaxillary sutures, but more stress was also present on the sutura nasomaxillaris, sutura frontonasalis, and sutura zygomaticomaxillaris on the cleft side than on the noncleft side.

Extreme value laws for fractal intensity functions in dynamical systems: Minkowski analysis

NASA Astrophysics Data System (ADS)

Mantica, Giorgio; Perotti, Luca

2016-09-01

Typically, in the dynamical theory of extremal events, the function that gauges the intensity of a phenomenon is assumed to be convex and maximal, or singular, at a single, or at most a finite collection of points in phase-space. In this paper we generalize this situation to fractal landscapes, i.e. intensity functions characterized by an uncountable set of singularities, located on a Cantor set. This reveals the dynamical rôle of classical quantities like the Minkowski dimension and content, whose definition we extend to account for singular continuous invariant measures. We also introduce the concept of extremely rare event, quantified by non-standard Minkowski constants and we study its consequences to extreme value statistics. Limit laws are derived from formal calculations and are verified by numerical experiments. Dedicated to the memory of Joseph Ford, on the twentieth anniversary of his departure.

Psychological health of Australian veterans of the 1991 Gulf War: an assessment using the SF-12, GHQ-12 and PCL-S.

PubMed

McKenzie, D P; Ikin, J F; McFarlane, A C; Creamer, M; Forbes, A B; Kelsall, H L; Glass, D C; Ittak, P; Sim, M R

2004-11-01

Elevated rates of psychological morbidity and symptomatology have been widely reported in 1991 Gulf War veterans. The present study used brief self-report instruments to compare the psychological health of Australian Gulf War veterans with that of a randomly sampled military comparison group. The 12-item Short Form Health Survey (SF-12), 12-item General Health Questionnaire (GHQ-12), Posttraumatic Stress Disorder Checklist--Specific (PCL-S) and Military Service Experience (MSE) questionnaire were administered to 1424 male Australian Gulf War veterans and 1548 male Australian Defence Force members who were operational at the time of the Gulf War conflict, but were not deployed there. The Gulf War veterans exhibited poorer psychological health, as measured by the above three instruments, than the comparison group members. For Gulf War veterans, the number of stressful experiences, as measured by the MSE questionnaire, was correlated with scores on the three instruments. SF-12 mental health component summary scores and PCL-S caseness, but not GHQ-12 caseness, differed significantly between Gulf War veterans and comparison group members who had been on at least one active deployment. More than a decade after the 1991 Gulf War, Australian Gulf War veterans are exhibiting higher levels of current (past month) psychological ill-health, as measured using the GHQ-12 and PCL-S, as well as lower mental health status, as measured by the SF-12, than the comparison group. Although not a replacement for formal psychiatric diagnosis, instruments such as those above may aid in the assessment of veterans' psychological health.

Modulation of Winter Precipitation Dynamics Over the Arabian Gulf by ENSO

NASA Astrophysics Data System (ADS)

Sandeep, S.; Ajayamohan, R. S.

2018-01-01

The Arabian Gulf (Gulf) and the surrounding regions are centers of intense economic activity. The precipitating weather systems that form over the Gulf are important for this predominantly arid region. It is suggested that El Niño-Southern Oscillation (ENSO) influences the Middle East precipitation variability through an equatorward shift of the subtropical jet. Here we present compelling evidence to illustrate the role of ENSO in modulating the local dynamics and moisture transport in initiating precipitation during different ENSO phases using satellite and reanalysis data. It is found that the moisture transport from the Red and Arabian Seas toward the Gulf is stronger during El Niño years. The pattern and strength of moisture transport toward the Gulf is weakened during La Niña and neutral years, with most of the transport directed toward the northern Gulf. Using a 120 h back trajectory analysis, it is found that while the air parcels coming toward the Gulf from the Arabian and Red Seas side originate at lower tropospheric levels, the air parcels from the Mediterranean originate at middle and upper tropospheric levels during El Niño years. In contrast, upper tropospheric air parcels originating over the southern Arabian Sea plays a dominant role on Gulf precipitation during La Niña and neutral years. The seasonal mean transients of zonal winds show a robust ENSO signature over the Gulf, indicating a favorable (less favorable) condition for the penetration of midlatitude eddies over the region during El Niño (La Niña) winters.

Pregnancy outcomes among U.S. Gulf War veterans: a population-based survey of 30,000 veterans.

PubMed

Kang, H; Magee, C; Mahan, C; Lee, K; Murphy, F; Jackson, L; Matanoski, G

2001-10-01

We evaluated an association between veterans' Gulf War service and reported adverse pregnancy outcomes. We conducted a health survey in which selected reproductive outcomes of a population-based sample of 15,000 Gulf War veterans representing four military branches and three unit components (active, reserve, and National Guard) were compared to those of 15,000 non-Gulf veteran controls. Male Gulf veterans, compared with their non-Gulf veteran controls, reported a significantly higher rate of miscarriage (odds ratio [OR] = 1.62; 95% confidence interval [CI] = 1.32-1.99). Female Gulf veterans also reported more miscarriages than their respective controls, although their excess was not statistically significant (OR= 1.35; CI = 0.97-1.89). Both men and women deployed to the Gulf theater reported significant excesses of birth defects among their liveborn infants. These excess rates also extended to the subset of "moderate to severe" birth defects [males: OR= 1.78 (CI = 1.19-2.66); females: OR = 2.80 (CI = 1.26-6.25)]. No statistically significant differences by deployment status were found among men or women for stillbirths, pre-term deliveries or infant mortality. The risk of veterans reporting birth defects among their children was significantly associated with veteran's military service in the Gulf War. This observation needs to be confirmed by a review of medical records to rule out possible reporting bias.

Incidence of cancer among UK Gulf war veterans: cohort study

PubMed Central

Macfarlane, Gary J; Biggs, Anne-Marie; Maconochie, Noreen; Hotopf, Matthew; Doyle, Patricia; Lunt, Mark

2003-01-01

Objectives To determine whether incidence rates of cancer are higher in UK service personnel who were deployed in the Gulf war than in those not deployed and whether any increased risk of cancer is related to self reported exposures to potentially hazardous material during the period of deployment. Design A cohort study with follow up from 1 April 1991 (the end of the Gulf war) to 31 July 2002. Participants 51 721 Gulf war veterans and 50 755 service personnel matched for age, sex, rank, service, and level of fitness who were not deployed in the Gulf (the Era cohort). Main outcome measures Incident cancers, identified on the NHS central register. Results There were 270 incident cancers among the Gulf cohort and 269 among the Era cohort (incidence rate ratio 0.99, 95% confidence interval 0.83 to 1.17). There was no excess in site specific cancers among the Gulf cohort. Adjustment for lifestyle factors (smoking and alcohol consumption) did not alter these results. In the Gulf cohort, risk of cancer was not related to multiple vaccinations or exposure to pesticides or depleted uranium during deployment. Conclusion There is no current excess risk of cancer overall nor of site specific cancers in Gulf war veterans. Specific exposures during deployment have not resulted in a subsequent increased risk of cancer. The long latent period for cancer, however, necessitates the continued follow up of these cohorts. PMID:14670879

Incidence of cancer among UK Gulf war veterans: cohort study.

PubMed

Macfarlane, Gary J; Biggs, Anne-Marie; Maconochie, Noreen; Hotopf, Matthew; Doyle, Patricia; Lunt, Mark

2003-12-13

To determine whether incidence rates of cancer are higher in UK service personnel who were deployed in the Gulf war than in those not deployed and whether any increased risk of cancer is related to self reported exposures to potentially hazardous material during the period of deployment. A cohort study with follow up from 1 April 1991 (the end of the Gulf war) to 31 July 2002. 51 721 Gulf war veterans and 50 755 service personnel matched for age, sex, rank, service, and level of fitness who were not deployed in the Gulf (the Era cohort). Incident cancers, identified on the NHS central register. There were 270 incident cancers among the Gulf cohort and 269 among the Era cohort (incidence rate ratio 0.99, 95% confidence interval 0.83 to 1.17). There was no excess in site specific cancers among the Gulf cohort. Adjustment for lifestyle factors (smoking and alcohol consumption) did not alter these results. In the Gulf cohort, risk of cancer was not related to multiple vaccinations or exposure to pesticides or depleted uranium during deployment. There is no current excess risk of cancer overall nor of site specific cancers in Gulf war veterans. Specific exposures during deployment have not resulted in a subsequent increased risk of cancer. The long latent period for cancer, however, necessitates the continued follow up of these cohorts.

30 CFR 519.415 - How will bonus and royalty credits affect revenues allocated to Gulf producing States?

Code of Federal Regulations, 2014 CFR

2014-07-01

... revenues allocated to Gulf producing States? 519.415 Section 519.415 Mineral Resources BUREAU OF OCEAN... affect revenues allocated to Gulf producing States? If bonus and royalty credits issued under Section 104(c) of the Gulf of Mexico Energy Security Act are used to pay bonuses or royalties on leases in the...

30 CFR 519.415 - How will bonus and royalty credits affect revenues allocated to Gulf producing States?

Code of Federal Regulations, 2012 CFR

2012-07-01

... revenues allocated to Gulf producing States? 519.415 Section 519.415 Mineral Resources BUREAU OF OCEAN... affect revenues allocated to Gulf producing States? If bonus and royalty credits issued under Section 104(c) of the Gulf of Mexico Energy Security Act are used to pay bonuses or royalties on leases in the...

30 CFR 219.413 - How will the coastal political subdivisions of Gulf producing States share in the qualified OCS...

Code of Federal Regulations, 2011 CFR

2011-07-01

... Gulf producing States share in the qualified OCS revenues? 219.413 Section 219.413 Mineral Resources... § 219.413 How will the coastal political subdivisions of Gulf producing States share in the qualified OCS revenues? Of the revenues allocated to a Gulf producing State, 20 percent will be distributed to...

30 CFR 219.413 - How will the coastal political subdivisions of Gulf producing States share in the qualified OCS...

Code of Federal Regulations, 2010 CFR

2010-07-01

... Gulf producing States share in the qualified OCS revenues? 219.413 Section 219.413 Mineral Resources... subdivisions of Gulf producing States share in the qualified OCS revenues? Of the revenues allocated to a Gulf producing State, 20 percent will be distributed to the coastal political subdivisions within that State. ...

30 CFR 519.415 - How will bonus and royalty credits affect revenues allocated to Gulf producing States?

Code of Federal Regulations, 2013 CFR

2013-07-01

... revenues allocated to Gulf producing States? 519.415 Section 519.415 Mineral Resources BUREAU OF OCEAN... affect revenues allocated to Gulf producing States? If bonus and royalty credits issued under Section 104(c) of the Gulf of Mexico Energy Security Act are used to pay bonuses or royalties on leases in the...

76 FR 59064 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-23

... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 654 [Docket No. 110707375-1578-02] RIN 0648-BB07 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Stone Crab Fishery of the Gulf of Mexico; Removal of Regulations AGENCY: National Marine Fisheries Service (NMFS...

76 FR 66021 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Generic Annual Catch Limits...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-25

..., Shrimp, and Coral and Coral Reefs Fishery Management Plans for the Gulf of Mexico (FMPs) as prepared and... fisheries for reef fish, red drum, shrimp, and coral and coral reefs of the Gulf of Mexico (Gulf) are... remove octocorals from the Coral and Coral Reefs FMP. Most octocorals are harvested in waters under the...

78 FR 72583 - Reef Fish Fishery of the Gulf of Mexico; 2013 Accountability Measure and Closure for Hogfish in...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-03

..., Shrimp, and Coral and Coral Reefs Fishery Management Plans for the Gulf of Mexico (Generic ACL Amendment.... 100217097-1757-02] RIN 0648-XC981 Reef Fish Fishery of the Gulf of Mexico; 2013 Accountability Measure [email protected] . SUPPLEMENTARY INFORMATION: The reef fish fishery of the Gulf, which includes hogfish, is...

76 FR 54727 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-02

... RIN 0648-AY72 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of...) have submitted Amendment 10 to the Fishery Management Plan for the Spiny Lobster Fishery of the Gulf of... actions to revise the lobster species contained within the fishery management unit; revise definitions of...

75 FR 23186 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-03

... Reef Fish Resources of the Gulf of Mexico (FMP) prepared by the Gulf of Mexico Fishery Management... assessment update, the overfishing limit (OFL), as endorsed by the Council's Scientific and Statistical... million lb (3.150 million kg), which is 25 percent below the OFL, to account for scientific uncertainty...

33 CFR 162.75 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2012 CFR

2012-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...

33 CFR 162.75 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2013 CFR

2013-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...

33 CFR 162.75 - All waterways tributary to the Gulf of Mexico (except the Mississippi River, its tributaries...

Code of Federal Regulations, 2014 CFR

2014-07-01

... Gulf of Mexico (except the Mississippi River, its tributaries, South and Southwest Passes and... WATERWAYS NAVIGATION REGULATIONS § 162.75 All waterways tributary to the Gulf of Mexico (except the... waters of the U.S. tributary to or connected by other waterways with the Gulf of Mexico between St. Marks...

78 FR 15708 - Fisheries of the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-12

...: Notice of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia Review Workshop. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish mackerel and cobia fisheries will consist of a series of workshops... Workshops, and make recommendations with respect to the stock assessments of Gulf of Mexico Spanish mackerel...

77 FR 31734 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-30

... the season that would have occurred in the absence of the quota increase, and economic benefits to.... 120213124-1066-02] RIN 0648-BB91 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of Mexico; Red Snapper Management Measures AGENCY: National Marine Fisheries Service...

75 FR 64171 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-19

... prevent overfishing of Gulf greater amberjack. DATES: Closure is effective 12:01 a.m., local time, October... harvest to the quota is crucial to meeting the legal requirements to prevent and end overfishing and.... This closure is intended to prevent overfishing of Gulf greater amberjack and increase the likelihood...

30 CFR 219.415 - How will bonus and royalty credits affect revenues allocated to Gulf producing States?

Code of Federal Regulations, 2010 CFR

2010-07-01

... revenues allocated to Gulf producing States? 219.415 Section 219.415 Mineral Resources MINERALS MANAGEMENT... allocated to Gulf producing States? If bonus and royalty credits issued under Section 104(c) of the Gulf of Mexico Energy Security Act are used to pay bonuses or royalties on leases in the 181 Area located in the...

76 FR 6364 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Coastal Migratory Pelagic...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-04

...) of the Gulf of Mexico (Gulf) to commercial king mackerel fishing using run-around gillnets. This... run-around gillnets and hook-and-line gear (50 CFR 622.42(c)(1)(i)(A)(2)(i)). The southern subzone is... Gulf group king mackerel for vessels using run-around gillnet gear in the southern Florida west coast...

Gulf Dolphins Questions & Answers | NOAA Gulf Spill Restoration

Science.gov Websites

seafood safe to eat? What should Gulf residents do if they find stranded wildlife? Why is NOAA studying dolphins in the Northern Gulf of Mexico now? NOAA and its federal, state and local partners are working this UME. NOAA is working with a team of marine mammal health experts to investigate the cause of death

75 FR 35335 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Gulf of Mexico Reef Fish Fishery...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-22

... in late August. Given the dynamic nature of the ongoing Deepwater Horizon/BP oil spill in the Gulf... boat fishing effort that may be related to the oil spill. The number of captain interviews conducted... effects of the oil spill on Gulf recreational fisheries. Results from the increased sampling program can...

About Us | NOAA Gulf Spill Restoration

Science.gov Websites

Archive Home About Us About Us Restoring the Gulf after the Oil Spill. After the oil spill, the Trustees immediately got to work. Within a month, we were assessing the impacts of oil and oil spill response efforts injured by the oil spill, and increase recreational opportunities in the Gulf. Gulf Spill Restoration Menu

NASA'S SERVIR Gulf of Mexico Project: The Gulf of Mexico Regional Collaborative (GoMRC)

NASA Technical Reports Server (NTRS)

Quattrochi, Dale A.; Irwin, Daniel; Presson, Joan; Estes, Maury; Estes, Sue; Judd, Kathleen

2006-01-01

The Gulf of Mexico Regional Collaborative (GoMRC) is a NASA-funded project that has as its goal to develop an integrated, working, prototype IT infrastructure for Earth science data, knowledge and models for the five Gulf U.S. states and Mexico, and to demonstrate its ability to help decision-makers better understand critical Gulf-scale issues. Within this preview, the mission of this project is to provide cross cutting solution network and rapid prototyping capability for the Gulf of Mexico region, in order to demonstrate substantial, collaborative, multi-agency research and transitional capabilities using unique NASA data sets and models to address regional problems. SERVIR Mesoamerica is seen as an excellent existing framework that can be used to integrate observational and GIs data bases, provide a sensor web interface, visualization and interactive analysis tools, archival functions, data dissemination and product generation within a Rapid Prototyping concept to assist decision-makers in better understanding Gulf-scale environmental issues.

Military deployment to the Gulf War as a risk factor for psychiatric illness among US troops.

PubMed

Fiedler, Nancy; Ozakinci, Gozde; Hallman, William; Wartenberg, Daniel; Brewer, Noel T; Barrett, Drue H; Kipen, Howard M

2006-05-01

Several studies document an excess of psychiatric symptoms among veterans of the the 1991 Gulf War. However, little is known about the prevalence of psychiatric disorders in those who were deployed to that conflict. To compare the 12-month prevalence and associated risk factors for DSM Axis I psychiatric diagnoses between random samples of Gulf War-deployed veterans and veterans of the same era not deployed to the Persian Gulf (era veterans). Interview data from 967 Gulf War veterans and 784 era veterans were examined to determine current health status, medical conditions, symptoms and Axis I psychiatric disorders. Logistic regression models evaluated risk factors for psychiatric disorder. Gulf War veterans had a significantly higher prevalence of psychiatric diagnoses, with twice the prevalence of anxiety disorders and depression. Lower rank, female gender and divorced or single marital status were significant independent predictors of psychiatric disorder. Deployment to the Gulf War is associated with a range of mental health outcomes more than 10 years after deployment.

Gulf Coast Wetlands

Atmospheric Science Data Center

2014-05-15

article title:  Wetlands of the Gulf Coast     View Larger Image ... SpectroRadiometer (MISR) highlights coastal areas of four states along the Gulf of Mexico: Louisiana, Mississippi, Alabama and part of ...

Western Gulf of Mexico lease sale draws weak response

DOE Office of Scientific and Technical Information (OSTI.GOV)

Koen, A.D.

1992-08-24

This paper reports that puny participation in the federal lease sale for the western Gulf of Mexico reflected a lack of open acreage on attractive prospects and the crisis sweeping the U.S. offshore oil and gas industry. Thirty-eight companies participating in the Minerals Management Service's Outer Continental Shelf Sale 141 offered 81 bids for 61 tracts in the western gulf planning area. That was the fewest bids offered in a western gulf sale since operators offered 52 bids for 41 tracts at Sale 105 in August 1986. The only Gulf of Mexico minerals sale to attract less bonus money wasmore » the MMS sulfur and salt sale in the central gulf in February 1988 in which $20.8 million was exposed.« less

Le consentement libre et éclairé aux soins en psychiatrie

PubMed Central

Neilson, Grainne; Chaimowitz, Gary

2015-01-01

Résumé Le patient a le droit d’être informé sur les soins de santé qui lui sont proposés et de participer activement à la prise de décisions relativement à ces soins. Le respect de la dignité et de l’autonomie de la personne passe par le respect de son droit de prendre des décisions à propos de ses soins psychiatriques, notamment de refuser un traitement, pour autant qu’elle soit apte à prendre des décisions. Il importe que le psychiatre connaisse les fondements éthiques du consentement libre et éclairé et les exigences prévues par le droit en cette matière, y compris la jurisprudence. Le consentement n’est pas immuable, pouvant changer avec le temps, au fil de l’évolution des conditions et des circonstances. Par conséquent, le consentement doit être un processus continu.

Habitat Suitability Index Models: Southern and gulf flounders

USGS Publications Warehouse

Enge, Kevin M.; Mulholland, Rosemarie

1985-01-01

Both the southern and gulf flounders (paralichthrS lethostigma, f. albi~utta) are important commercial and recreationa species. Catch statlstics for flounder do not differentiate between species; however, southern flounders are more common than gulf flounders except on the gulf coast of Florida (Topp and Hoff 1972). The commercial fishery consists of incidental catches by shrimp trawlers. A total of 853,162 kg (1,880,900 lb) of unclassified flounder worth $572,142 was caught from the Gulf of Mexico in 1976 (U.S. Dep. Commerce 1980). The sport fishery consists of both hook-and-line fishing and gigging.

Numerical and experimental results on the spectral wave transfer in finite depth

NASA Astrophysics Data System (ADS)

Benassai, Guido

2016-04-01

Determination of the form of the one-dimensional surface gravity wave spectrum in water of finite depth is important for many scientific and engineering applications. Spectral parameters of deep water and intermediate depth waves serve as input data for the design of all coastal structures and for the description of many coastal processes. Moreover, the wave spectra are given as an input for the response and seakeeping calculations of high speed vessels in extreme sea conditions and for reliable calculations of the amount of energy to be extracted by wave energy converters (WEC). Available data on finite depth spectral form is generally extrapolated from parametric forms applicable in deep water (e.g., JONSWAP) [Hasselmann et al., 1973; Mitsuyasu et al., 1980; Kahma, 1981; Donelan et al., 1992; Zakharov, 2005). The present paper gives a contribution in this field through the validation of the offshore energy spectra transfer from given spectral forms through the measurement of inshore wave heights and spectra. The wave spectra on deep water were recorded offshore Ponza by the Wave Measurement Network (Piscopia et al.,2002). The field regressions between the spectral parameters, fp and the nondimensional energy with the fetch length were evaluated for fetch-limited sea conditions. These regressions gave the values of the spectral parameters for the site of interest. The offshore wave spectra were transfered from the measurement station offshore Ponza to a site located offshore the Gulf of Salerno. The offshore local wave spectra so obtained were transfered on the coastline with the TMA model (Bouws et al., 1985). Finally the numerical results, in terms of significant wave heights, were compared with the wave data recorded by a meteo-oceanographic station owned by Naples Hydrographic Office on the coastline of Salerno in 9m depth. Some considerations about the wave energy to be potentially extracted by Wave Energy Converters were done and the results were discussed.

75 FR 63461 - Combined Notice of Filings No. 2

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-15

... Refund Report filings: Docket Numbers: RP10-1304-002. Applicants: Gulf States Transmission Corporation. Description: Gulf States Transmission Corporation submits tariff filing per 154.203: Gulf States Transmission...

Prospects and Techniques for Eddy-Resolving Acoustic Tomography in the Eastern Gulf of Mexico

NASA Astrophysics Data System (ADS)

Caruthers, J. W.; Nechaev, D.; Roman, D. A.; Sidorovskaia, N. A.; Ioup, G. E.; Ioup, J.; Yaremchuk, M.

2007-05-01

For several decades monitoring and modeling the dynamics and physical structure of the Gulf of Mexico have been major efforts undertaken by oceanographers of the United States and other American countries. There are very interesting physical oceanographic features in the Gulf, not the least of which are the Gulf Loop Current and the eddies it spawns. Satellite sensing of IR and altimeter imagery has been a major input to modeling those features. Such efforts are very important to the economy and well being of much of the United States and Mexico, including fisheries, mineral economies, hurricane strengths and paths in the summer, and severe snow storms in the eastern US in the winter. A major shortcoming of the present monitoring of the Gulf is the lack of subsurface input to the dynamic models of the Gulf. Acoustic tomography is a viable means of providing that missing input. Several universities have come together to investigate the prospects for establishing a Gulf Eddy Monitoring System (GEMS) for the deep eastern half of the Gulf using acoustic tomography. The group has conducted several acoustics experiments and propagation studies to determine the feasibility of long-range propagation in the eastern Gulf and the mitigation of adverse effects on marine mammal populations in that region under the Office of Naval Research project entitled the Littoral Acoustic Demonstration Center (LADC). The group has also convened an invited session for the 9th World Multiconference on Systemics, Cybernetics and Informatics (WMSCI 2005) Orlando, FL, July 2005. This paper discusses prospects for establishing the GEMS tomographic system, its technical characteristics, and its contributions to advancing the knowledge of the dynamics of the Gulf. This presentation will concentrate on the characteristics of a single-slice tomographic system, called GEMS Phase I, across the approaches to the DeSoto Canyon in the northeastern Gulf and its prospect for monitoring the movements of eddies into the canyon. It will also touch on the prospects for expanding the network to include the entire eastern Gulf with a moored system on the Campeche Bank and several along the US Gulf shelf. This projected tomographic system is called GEMS Phase II. The paper will invite the participation of Mexican organizations to help plan and develop this proposed extensive project.

Discordance gradient-surface dans le rétrécissement mitral: le gradient moyen transmitral est-il un critère de sévérité ou un indice de tolérance du rétrécissement mitral serré?

PubMed Central

Najih, Hayat; Arous, Salim; Laarje, Aziza; Baghdadi, Dalila; Benouna, Mohamed Ghali; Azzouzi, Leila; Habbal, Rachida

2016-01-01

Le rétrécissement mitral (RM) rhumatismal demeure une valvulopathie fréquente dans les pays en voie de développement. Cependant, les pays industrialisés ont vu l'émergence ces dernières années de nouvelles étiologies de RM; notamment l'origine médicamenteuse et/ou toxique responsable de valvulopathies restrictives aussi bien sténosantes que régurgitantes. Pour cette raison, l'évaluation échocardiographique du RM et surtout, la définition de critères objectifs pour conclure au caractère serré du RM reste toujours d'actualité. Les objectifs du travail sont: évaluer l'existence ou non d'une corrélation directe entre le gradient moyen transmitral (GMT) et la sévérité du RM chez les patients porteurs d'un RM serré ou très serré (critère primaire) et analyser les différents paramètres qui conditionnent le gradient moyen transmitral (GMT) (Critère secondaire). Il s'agit d'une étude transversale monocentrique incluant tous les patients admis au service de Cardiologie du CHU Ibn Rochd de Casablanca pour un RM serré ou très serré, sur une période d'une année (Janvier 2014 à Décembre 2014). Nous avons analysés séparément deux groupes de patients : ceux avec un gradient moyen transmitral<10 mmHg (groupe 1) et ceux avec un gradient>10mmHg (groupe2). 50 patients porteurs d'un RM serré ou très serré ont été inclus. L'âge moyen de nos patients est de 41,7 ans avec prédominance féminine (sex ratio: 0,25). 64% de nos patients avaient un RM serré et 36% avaient un RM très serré. 52% (26 patients) avaient un GMT <10mmHg et 48% (24 patients) avaient un gradient moyen >10mmHg, ce qui suggère l'absence de corrélation directe entre la sévérité du RM et le GMT (coefficient de Pearson R: -0,137). Pour la dyspnée, 80% des patients du groupe 1 étaient dyspnéiques stade II de la NYHA et 70% des patients du groupe 2 étaient dyspnéiques stade III (41%) ou IV (29%) de la NYHA, ce qui signifie l'existence d'une corrélation significative entre le GMT et la sévérité de la dyspnée (R: 0,586 et p: 0,001). L'étude analytique de la fréquence cardiaque et la présence d'une décompensation cardiaque par rapport au gradient moyen transmitral a montré une corrélation significative. En effet, parmi les patients du groupe 1, 96% avaient une FC entre 60 et 100 bpm et aucun patient n'était en décompensation cardiaque. Dans le groupe 2,54% (13 patients) avaient une FC >100 bpm et 7 parmi eux (53%) étaient en décompensation cardiaque gauche. L'étude de la pression artérielle pulmonaire systolique dans les deux groupes de l'étude a révélé l'existence dans notre série d'une corrélation statistiquement significative (R : 0,518 et P : 0,001) entre la PAPS et le GMT. La régularité du rythme et la fonction ventriculaire droite n'étaient pas corrélées au GMT (R : 0,038 et R :-0,002 respectivement). Le gradient moyen transmitral est un bon indicateur de la tolérance du rétrécissement mitral, mais il reflète imparfaitement sa sévérité vue qu'il dépend de plusieurs paramètres hémodynamiques. D'authentiques rétrécissements mitraux très serrés peuvent exister avec des gradients moyens transmitraux <10 mm Hg, c'est pour cette raison que la valeur du GMT ne doit jamais être interprétée isolément. PMID:28292038

Coastal Forests of the Gulf of Mexico: A Description and Some Thoughts on Their Conservation

Treesearch

W. C. Barrow; L. A. Johnson Randall; M. S. Woodrey; J. Cox; E. Ruelas I.; C. M. Riley; R. B. Hamilton; C. Eberly

2005-01-01

Millions of Nearctic-Neotropical landbirds move through the coastal forests of the Gulf of Mexico each spring and autumn as they migrate across and around the gulf. Migration routes in the gulf region are not static—they shift year to year and season to season according to prevailing wind patterns. Given the dynamic nature of migration routes, coastal forests...

33 CFR 165.T08-290 - Safety Zone; Gulf of Mexico-Johns Pass, Florida.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone; Gulf of Mexico-Johns... § 165.T08-290 Safety Zone; Gulf of Mexico—Johns Pass, Florida. (a) Regulated area. The Coast Guard is establishing a temporary safety zone on the waters of the Gulf of Mexico, Florida, in the vicinity of the John...

33 CFR 334.730 - Waters of Santa Rosa Sound and Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving...

Code of Federal Regulations, 2010 CFR

2010-07-01

... Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air Force Base... Sound and Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command, Eglin Air Force Base, Fla. (a) The danger zones—(1) Prohibited area. Waters of Santa Rosa Sound and Gulf of Mexico...

49 CFR 195.413 - Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets.

Code of Federal Regulations, 2010 CFR

2010-10-01

... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...

Outlook for coastal plain forests: a subregional report from the Southern Forest Futures Project

Treesearch

Kier Klepzig; Richard Shelfer; Zanethia Choice

2014-01-01

The U.S. Coastal Plain consists of seven sections: the Northern Atlantic, Eastern Atlantic, Peninsular Florida, Southern Gulf, Middle Gulf-East, Middle Gulf-West, and Western Gulf. It covers a large area, consists of a diverse array of habitats, and supports a diverse array of uses. This report presents forecasts from the Southern Forest Futures Project that are...

78 FR 28146 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-14

... major period of emigration of these shrimp from Texas estuaries to the Gulf of Mexico (Gulf) so the... to project when brown shrimp in Texas bays and estuaries will reach a mean size of 3.54 in (90 mm), and begin strong emigrations out of the bays and estuaries during maximum duration ebb tides. Sampling...

77 FR 25116 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-27

...-BB44 Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Spiny Lobster Fishery of the Gulf... (Councils) have submitted Amendment 11 to the Fishery Management Plan for the Spiny Lobster Fishery of the... proposes to limit spiny lobster fishing using trap gear in certain areas in the exclusive economic zone off...

33 CFR 334.680 - Gulf of Mexico, southeast of St. Andrew Bay East Entrance, small-arms firing range, Tyndall Air...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...

77 FR 6988 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-02-10

...; adjust the commercial ACL for SWG; establish a formula-based method for setting gag and red grouper multi... (FMP) for the Reef Fish Resources of the Gulf of Mexico (Amendment 32) prepared by the Gulf of Mexico... catch target (ACT) for 2012 through 2015 and subsequent fishing years, consistent with the gag...

49 CFR 195.413 - Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets.

Code of Federal Regulations, 2013 CFR

2013-10-01

... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...

49 CFR 195.413 - Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets.

Code of Federal Regulations, 2011 CFR

2011-10-01

... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...

49 CFR 195.413 - Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets.

Code of Federal Regulations, 2012 CFR

2012-10-01

... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...

33 CFR 334.680 - Gulf of Mexico, southeast of St. Andrew Bay East Entrance, small-arms firing range, Tyndall Air...

Code of Federal Regulations, 2014 CFR

2014-07-01

... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...

33 CFR 334.680 - Gulf of Mexico, southeast of St. Andrew Bay East Entrance, small-arms firing range, Tyndall Air...

Code of Federal Regulations, 2013 CFR

2013-07-01

... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...

49 CFR 195.413 - Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets.

Code of Federal Regulations, 2014 CFR

2014-10-01

... the Gulf of Mexico and its inlets. 195.413 Section 195.413 Transportation Other Regulations Relating... Maintenance § 195.413 Underwater inspection and reburial of pipelines in the Gulf of Mexico and its inlets. (a... shall prepare and follow a procedure to identify its pipelines in the Gulf of Mexico and its inlets in...

33 CFR 334.680 - Gulf of Mexico, southeast of St. Andrew Bay East Entrance, small-arms firing range, Tyndall Air...

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...

33 CFR 334.680 - Gulf of Mexico, southeast of St. Andrew Bay East Entrance, small-arms firing range, Tyndall Air...

Code of Federal Regulations, 2012 CFR

2012-07-01

... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico, southeast of St... AND RESTRICTED AREA REGULATIONS § 334.680 Gulf of Mexico, southeast of St. Andrew Bay East Entrance... the Gulf of Mexico, southeast of St. Andrew Bay East Entrance within a rectangular area beginning at a...

Vagus Nerve Stimulation: A Non-Invasive Treatment to Improve the Health of Gulf Veterans with Gulf War Illness

DTIC Science & Technology

2017-05-01

Gulf War Illness (GWI) is a condition occurring in some veterans who served in the 1990-91 Gulf War. To date there is no specific treatment for it. A...device (which does not stimulate the vagus nerve). We will also test to see if the active device improves migraine which commonly occurs with widespread pain in GWI.

Paleoceanographic history of the Guaymas Basin, Gulf of California, during the past 15,000 years based on diatoms, silicoflagellates, and biogenic sediments

USGS Publications Warehouse

Barron, J.A.; Bukry, D.; Dean, W.E.

2005-01-01

High-resolution records of calcium carbonate, biogenic opal, diatoms, and silicoflagellates from western Guaymas Basin gravity core GGC55 and piston core JPC56 and eastern Guaymas Basin DSDP Site 480 reveal a complex paleoceanographic history of the central Gulf of California during the past 15,000 years. Prior to ??? 6.2 ka, the eastern and western Guaymas Basin proxy records were remarkably similar. After conditions similar to those of today during the B??lling-Allerod, the Younger Dryas (YD) saw a major drop in diatom production, coincident with increased calcium carbonate and tropical microfossils suggestive of El Nin??o-like conditions. Biosiliceous productivity began increasing during the latter part of the YD, but it was only during the earliest Holocene (11.6 to 11.0 ka) that conditions similar to those of the B??lling-Allerod returned to the central Gulf. Between around 11.0 and 6.2 ka, tropical diatoms and silicoflagellates were virtually absent from the central Gulf, as relatively cooler and fresher surface waters resembling those of the modern northern Gulf were present in the central Gulf. Beginning at about 6.2 ka, tropical diatoms and silicoflagellates began increasing in the central Gulf, and coccoliths returned to western Gulf sediments. The onset of modern-day monsoon conditions in the American Southwest required the presence of warm SSTs in the northern Gulf, which probably did not occur until after about 5.4 ka, when tropical diatoms and silicoflagellates became relatively common in the central Gulf. Modern east-west contrasts, which arise from late winter-early spring coastal upwelling on the mainland side and lower diatom productivity on the western side of the Gulf, commenced between 6.2 and 5.4 ka, possibly due to a shift in the direction of late winter-early spring winds more towards the southeast, or down the axis of the Gulf. This proposed wind shift might have ultimately been due to a late Holocene strengthening of ENSO-like conditions in the eastern equatorial Pacific.

Miscarriage, stillbirth and congenital malformation in the offspring of UK veterans of the first Gulf war.

PubMed

Doyle, Pat; Maconochie, Noreen; Davies, Graham; Maconochie, Ian; Pelerin, Margo; Prior, Susan; Lewis, Samantha

2004-02-01

To assess whether the offspring of UK veterans of the first Gulf war are at increased risk of fetal death or congenital malformation. This was a retrospective reproductive cohort study of UK Gulf war veterans and a demographically similar comparison group who were in service at the time but were not deployed to the Gulf. Reproductive history was collected by means of a validated postal questionnaire between 1998 and 2001. In all, 27 959 pregnancies reported by men and 861 pregnancies reported by women were conceived after the first Gulf war and before November 1997. The risk of reported miscarriage was higher among pregnancies fathered by Gulf war veterans than by non-Gulf war veterans (OR = 1.4, 95% CI: 1.3, 1.5). Stillbirth risk was similar in both groups. Male Gulf war veterans reported a higher proportion of offspring with any type of malformation than the comparison cohort (OR = 1.5, 95% CI: 1.3, 1.7). Examination by type of malformation revealed some evidence for increased risk of malformations of the genital system, urinary system (renal and urinary tract), and 'other' defects of the digestive system, musculo-skeletal system, and non-chromosomal (non-syndrome) anomalies. These associations were weakened when analyses were restricted to clinically confirmed conditions. There was little or no evidence of increased risk for other structural malformations, specific syndromes, and chromosomal anomalies. Among female veterans, no effect of Gulf war service was found on the risk of miscarriage. The numbers of stillbirths and malformations reported by women were too small to allow meaningful analyses. We found no evidence for a link between paternal deployment to the Gulf war and increased risk of stillbirth, chromosomal malformations, or congenital syndromes. Associations were found between fathers' service in the Gulf war and increased risk of miscarriage and less well-defined malformations, but these findings need to be interpreted with caution as such outcomes are susceptible to recall bias. The finding of a possible relationship with renal anomalies requires further investigation. There was no evidence of an association between risk of miscarriage and mothers' service in the gulf.

Gulf of California biogeographic regions based on coastal zone color scanner imagery

NASA Astrophysics Data System (ADS)

SantamaríA-Del-Angel, Eduardo; Alvarez-Borrego, Saúl; Müller-Karger, Frank E.

1994-04-01

Topographically, the Gulf of California is divided into a series of basins and trenches that deepen to the south. Maximum depth at the mouth is greater than 3000 m. Most of the northern gulf is less than 200 m deep. The gulf has hydrographic features conducive to high primary productivity. Upwelling events have been described on the basis of temperature distributions at the eastern coast during winter and spring and at the western coast during summer. Tidal amplitude may be as high as 9 m in the upper gulf. On the basis of discrete phytoplankton sampling, the gulf was previously divided into four geographic regions. This division took into consideration only the space distribution, taxonomic composition, and abundance of microphytoplankton. With the availability of the coastal zone color scanner (CZCS) imagery, we were able to include the time variability of pigments to make a more detailed biogeographic division of the gulf. With weekly composites of the imagery, we generated time series of pigment concentrations for 33 locations throughout the gulf and for the whole life span of the CZCS. The time series show a clear seasonal variation, with maxima in winter and spring and minima in summer. The effect of upwelling at the eastern coast is clearly evident, with high pigment concentrations. The effect of the summer upwelling off the Baja California coast is not evident in these time series. Time series from locations on the western side of the gulf also show maxima in winter and spring that are due to the eddy circulation that brings upwelled water from the eastern side. Principal-component analysis was applied to define 14 regions. Ballenas Channel, between Angel de la Guarda and Baja California, and the upper gulf always appeared as very distinct regions. Some of these 14 regions relate to the geographic distributions of important faunal groups, including the benthos, or their life cycles. For example, the upper gulf is a place for reproduction and the nursery of many fish species, marine mammals and birds are specially abundant in Ballenas Channel, sardine spawning mostly occurs in the central gulf in spring, and shrimp are abundant off mainland Mexico.

Seasonal characteristics of water exchange in Beibu Gulf based on a particle tracking model

NASA Astrophysics Data System (ADS)

Wang, L.; Pan, W.; Yan, X.

2016-12-01

A lagrangian particle tracking model coupled with a three-dimensional Marine Environmental Committee Ocean Model (MEC) is used to study the transport and seasonal characteristics of water exchange in Beibu Gulf. The hydrodynamic model (MEC), which is forced with the daily surface and lateral boundary fluxes, as well as tidal harmonics and monthly climatological river discharges, is applied to simulate the flow field in the gulf during 2014. Using these results, particle tracking method which includes tidal advection and random walk in the horizontal is used to determine the residence times of sub regions within the gulf in response of winter and summer wind forcing. The result shows water exchange processes in the gulf have a similar tendency with seasonal circulation structure. During the sourthwestly prevailing wind in summer, water particles are traped within the gulf that considerably increases the residence time of each sub region. On the contrary, the presence of strong northeastly prevailing wind in winter drives particles to move cyclonicly leading to shorter residence times and rather active water exchanges among sub regions. Similarly, particle tracking is applied to investigate the water transport in Beibu Gulf. As Qiongzhou Strait and the wide opening in the south of the gulf are two significant channels connecting with the open ocean, continuous particle releases are simulated to quantify the influence range and the pathways of these sources water flowing into Beibu Gulf. The results show that water particles originated from Qiongzhou Strait are moving westward due to the year-round strong westward flow transportation. Influencing range in the north of the Beibu Gulf is enlarged by winter northeastly wind, however, it is blocked to the Leizhou Peninsula coastal region by summer westly wind. In the south opening, water particles are transported northward into the gulf along Hainan Island and flushed from Vietnam coastal region to the ocean rapidly by the longshore currents.

Ring-slope interactions and the formation of the western boundary current in the Gulf of Mexico

NASA Astrophysics Data System (ADS)

Vidal, VíCtor M. V.; Vidal, Francisco V.; Meza, Eustorgio; Portilla, Josué; Zambrano, Lorenzo; Jaimes, BenjamíN.

1999-09-01

Hydrographic data from the Gulf of Mexico (gulf) provide evidence that a western boundary current was set up by the interaction of an anticyclonic Loop Current (LC) ring with the continental margin of the western gulf during March-August 1985. The March 1985 geostrophic circulation reveals a remnant anticyclonic ring colliding with the slope. During this collision, two cyclonic rings were shed as the anticyclone transferred vorticity to the surrounding slope water. During July-August 1985, the ring triad weakened and evolved into a ˜900-km-long, north flowing, along-slope, western boundary current and cyclonic-anticyclonic ring pairs distributed throughout the central and western gulf. This western boundary current attained maximum northward flow speeds of 25 cm s-1 and an 8.3-Sv mass transport between 94°-96°W at 25°N. Our March-August 1985 observations reveal that the residence time and decay period of LC anticyclones in the western gulf may exceed 150 days. Within this time period the western gulf's cyclonic-anticyclonic vorticity field decayed ˜50%. Thus the western boundary current's evolutionary period, from its gestation to its absolute decay, is estimated to be of the order of 300 days. Although the presence of a western boundary current in the gulf has been attributed to the annual wind stress curl cycle [Sturges, 1993], our analyses of the western gulf March and July-August 1985 ring-driven geostrophic circulation and corresponding (January, February and May, June 1985) monthly mean synoptic wind stress curl distributions reveal that these constitute competing forcing mechanisms for the gulf's regional circulation. However, when very strong local forcing such as large eddies are present, the wind-driven background circulation is overwhelmed by such eddy forcing.

Benthic nepheloid layers in the Gulf of Maine and Alexandrium cyst inventories

PubMed Central

Pilskaln, C.H.; Hayashi, K.; Keafer, B.A.; Anderson, D.M.; McGillicuddy, D.J.

2014-01-01

Cysts residing in benthic nepheloid layers (BNLs) documented in the Gulf of Maine have been proposed as a possible source of inoculum for annual blooms of a toxic dinoflagellate in the region. Herein we present a spatially extensive data set of the distribution and thickness of benthic nepheloid layers in the Gulf of Maine and the abundance and inventories of suspended Alexandrium fundyense cysts within these near-bottom layers. BNLs are pervasive throughout the gulf and adjacent Bay of Fundy with maximum layer thicknesses of 50–60 m observed. Mean BNL thickness is 30 m in the eastern gulf and Bay of Fundy, and 20 m in the western gulf. Cyst densities in the near-bottom particle resuspension layers varied by three orders of magnitude across the gulf with maxima of 105 cysts m−3. An important interconnection of elevated BNL cyst densities is observed between the Bay of Fundy, the Maine Coastal Current and the south-central region of the gulf. BNL cyst inventories estimated for the eastern and western gulf are each on the order of 1015 cysts, whereas the BNL inventory in the Bay of Fundy is on the order of 1016 . Although BNL cyst inventories in the eastern and western gulf are 1–2 orders of magnitude smaller than the abundance of cysts in the upper 1 cm of sediment in those regions, BNL and sediment-bound cyst inventories are comparable in the Bay of Fundy. The existence of widespread BNLs containing substantial cyst inventories indicates that these near-bottom layers represent an important source of germinating A. fundyense cysts in the region. PMID:25419055

Benthic nepheloid layers in the Gulf of Maine and Alexandrium cyst inventories.

PubMed

Pilskaln, C H; Hayashi, K; Keafer, B A; Anderson, D M; McGillicuddy, D J

2014-05-01

Cysts residing in benthic nepheloid layers (BNLs) documented in the Gulf of Maine have been proposed as a possible source of inoculum for annual blooms of a toxic dinoflagellate in the region. Herein we present a spatially extensive data set of the distribution and thickness of benthic nepheloid layers in the Gulf of Maine and the abundance and inventories of suspended Alexandrium fundyense cysts within these near-bottom layers. BNLs are pervasive throughout the gulf and adjacent Bay of Fundy with maximum layer thicknesses of 50-60 m observed. Mean BNL thickness is 30 m in the eastern gulf and Bay of Fundy, and 20 m in the western gulf. Cyst densities in the near-bottom particle resuspension layers varied by three orders of magnitude across the gulf with maxima of 10 5 cysts m -3 . An important interconnection of elevated BNL cyst densities is observed between the Bay of Fundy, the Maine Coastal Current and the south-central region of the gulf. BNL cyst inventories estimated for the eastern and western gulf are each on the order of 10 15 cysts, whereas the BNL inventory in the Bay of Fundy is on the order of 10 16 . Although BNL cyst inventories in the eastern and western gulf are 1-2 orders of magnitude smaller than the abundance of cysts in the upper 1 cm of sediment in those regions, BNL and sediment-bound cyst inventories are comparable in the Bay of Fundy. The existence of widespread BNLs containing substantial cyst inventories indicates that these near-bottom layers represent an important source of germinating A. fundyense cysts in the region.

Hydrocarbon reservoirs of Gulf of Mexico: spatial and temporal distribution

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ray, P.K.

1988-02-01

The statistical distribution of over 12,000 producible hydrocarbon reservoirs from various biostratigraphic intervals of the Gulf of Mexico is presented. The average number, thickness, volume, subsurface depth, and ecozone of depositional environments of the reservoirs are grouped according to biostratigraphic intervals, trends, and geographic areas. The upper Pliocene and Pleistocene reservoirs account for more than 77% of the total number. Within the Miocene trend, Bigenerina H in the western Gulf and Bigenerina A and Bigenerina 2 in the central Gulf show significant concentration of reservoirs. The average depth of production for all trends gets deeper, both from west and east,more » toward Ship Shoal-South Timbalier areas. The average thickness varies slightly between trends; however, variation between areas is more significant. A significant majority of the reservoirs of all trends in the entire Gulf is reported from the outer shelf-upper slope ecozones (E3 and E4). According to volume, the E3-E5 reservoirs can be classified into three groups; (a) larger than 10,000 acre-ft/reservoir, (b) 5000 to 10,000 acre-ft/reservoir, and (c) smaller than 5000 acre-ft/reservoir. The reservoirs of the middle Miocene trend of the central Gulf and lower Miocene of the western Gulf fall into group a, those of other trends of the western Gulf into group b, and the post-Amphistegina E reservoirs of the central Gulf into group c. Information obtained from this study, in combination with regional and detailed geological information, provides valuable input in further exploration of the matured shelf and scantily explored slope of the Gulf of Mexico.« less

Effets du stress familial lié au diabète sur le contrôle glycémique chez les jeunes diabétiques de type 1

PubMed Central

Tsiouli, Elina; Alexopoulos, Evangelos C.; Stefanaki, Charikleia; Darviri, Christina; Chrousos, George P.

2013-01-01

Objectif Examiner la façon dont le stress familial influence le contrôle glycémique chez les patients diabétiques de moins de 18 ans. Sources des données Une recherche des études pertinentes publiées depuis 1990 a été réalisée dans PubMed et Scopus à l'aide des mots-clés suivants en anglais: diabetes type 1, glycemic control, family stress, family conflict et family function. Sélection des études La recension initiale a permis de cerner un total de 1 478 articles. La synthèse finale portrait sur 6 études de cohortes, 3 études transversales et 1 étude qualitative dans lesquelles le stress familial était évalué à l'aide d'instruments de mesure des conflits spécifiquement reliés au diabète et le contrôle glycémique était mesuré en fonction de l'hémoglobine glycosylée. Synthèse Dans la plupart des études, il existait une corrélation négative entre le stress familial et le contrôle glycémique des patients. Le bon fonctionnement familial était fortement relié à un bon contrôle glycémique des patients, tandis que les conflits familiaux étaient associés à un mauvais contrôle glycémique. Les familles dont la situation socioéconomique était défavorisée, celles ayant des adolescents atteints de diabète et les familles monoparentales étaient plus enclines à vivre un stress relié au diabète et étaient, par conséquent, plus susceptibles de connaître un moins bon contrôle glycémique. Conclusion Les interventions psychologiques thérapeutiques et les programmes éducatifs peuvent aider à atténuer le stress familial relié au diabète et amélioreront probablement le contrôle glycémique.

The Gulf of Mexico research initiative: It takes a village

NASA Astrophysics Data System (ADS)

Colwell, Rita R.

2016-07-01

The Gulf of Mexico Research Initiative (GoMRI) was established at the time of one of the most significant ecological events in recent memory, the Deepwater Horizon oil spill. Defined by the discharge of over 150 million gallons of crude oil and the introduction of over 1.8 million gallons of chemical dispersants into the Gulf system, the impacts of the Deepwater Horizon disaster reached the Gulf Coast's wetlands and beaches and impacted the surface and deep ocean. The ecological story of the event reveals a strong linkage between the deep sea research community and research priorities in the Gulf of Mexico (coastal processes, human health, etc.). Deep Sea research efforts have revealed critical parts of the story, providing information on transport, fate, and effects of the Deepwater Horizon oil release and subsequent recovery of the Gulf of Mexico ecosystems.

The health of Australian veterans of the 1991 Gulf War: factor analysis of self-reported symptoms.

PubMed

Forbes, A B; McKenzie, D P; Mackinnon, A J; Kelsall, H L; McFarlane, A C; Ikin, J F; Glass, D C; Sim, M R

2004-12-01

A recent report showed that Australian veterans of the 1991 Gulf War displayed a greater prevalence of a multitude of self-reported symptoms than a randomly sampled comparison group of military personnel who were eligible for deployment but were not deployed to the Gulf. To investigate whether the pattern, rather than frequency, of symptom reporting in these Australian Gulf War veterans differed from that of the comparison group personnel. Factor analysis was used to determine whether the co-occurrence of 62 symptoms in 1322 male Gulf War veterans can be explained by a number of underlying dimensions, called factors. The methodology was also applied to 1459 male comparison group subjects and the factor solutions of the two groups were compared. For the Gulf War veterans, a three factor solution displayed replicability and construct validity. The three factors were labelled as psycho-physiological distress, somatic distress, and arthro-neuromuscular distress, and were broadly similar to those described in previous studies of Gulf War veterans. A concordant three factor solution was also found for the comparison group subjects, with strong convergence of the factor loadings and factor scores across the two groups being displayed. Results did not display evidence of a unique pattern of self-reported symptoms among Gulf War veterans. Results also indicated that the differences between the groups lie in the degrees of expression of the three underlying factors, consistent with the well documented evidence of increased self-reported symptom prevalence in Gulf War veterans.

Labor, nationalism, and imperialism in eastern Arabia: Britain, the Shaikhs, and the Gulf oil workers in Bahrain, Kuwait and Qatar, 1932-1956

DOE Office of Scientific and Technical Information (OSTI.GOV)

Saleh, H.M.A.

This study examines the lack of a noticeable indigenous labor movement in the contemporary Gulf Arab countries of Bahrain, Kuwait and Qatar; it focuses on the emergence, after the discovery of oil, of an industrial Gulf labor force, and on the evolution of the British policy towards oil and Gulf oil workers. The period examined begins with the discovery of oil in Bahrain in 1932 (the first such discovery on the Arab side of the Gulf), and ends with the Suez Crisis of 1956. The latter is a watershed event in Gulf history. It is argued that the Suez Crisismore » was in large part responsible for the long-term defeat of the indigenous labor movement in the Gulf. Attention is given to the parts played by the British Government of India, the Foreign Office, the local Shaikhs, the Gulf nationalists, and by the workers themselves. Policies towards workers passed through two different periods. In the first, 1932-1945, the Government of India had no direct interest in the Gulf labor situation; in the second, 1946-1956, the Foreign Office took increased interest in the welfare of local oil workers, primarily because of the importance of oil to reconstruction of the British economy after the war. However, the Suez Crisis in 1956 convinced the British to withdraw their support for the workers.« less

Simultaneous transgenic suppression of LePG and LeExp1 influences fruit texture and juice viscosity in a fresh market tomato variety.

PubMed

Powell, Ann L T; Kalamaki, Mary S; Kurien, Philip A; Gurrieri, Sergio; Bennett, Alan B

2003-12-03

Tomatoes are grown for fresh consumption or for processing of the fruit. Some ripening-associated processes of the fruit can either contribute to or degrade attributes associated with both fresh and processing quality. For example, cell wall disassembly is associated with loss of fresh fruit firmness as well as with loss of processed tomato product viscosity. Several enzymes contribute to cell wall polysaccharide disassembly. Polygalacturonase (PG, poly[1,4-alpha-d-galactouronide] glucanohydrolase, EC 3.2.1.15) is among the most abundant polysaccharide hydrolases in ripening tomato fruit and is the major contributor to pectin depolymerization. Expansin (LeExp1) is also abundant in ripening fruit and is proposed to contribute to cell wall disassembly by nonhydrolytic activity, possibly by increasing substrate accessibility to other enzymes. Suppression of either LePG or LeExp1 expression alone results in altered softening and/or shelf life characteristics. To test whether simultaneous suppression of both LePG and LeExp1 expression influences fruit texture in additive or synergistic ways, transgenic Lycopersicon esculentum var. Ailsa Craig lines with reduced expression of either LePG or LeExp1 were crossed. Fruits from the third generation of progeny, homozygous for both transgenic constructs, were analyzed for firmness and other quality traits during ripening on or off the vine. In field-grown transgenic tomato fruit, suppression of LeExp1 or LePG alone did not significantly increase fruit firmness. However, fruits suppressed for both LePG and LeExp1 expression were significantly firmer throughout ripening and were less susceptible to deterioration during long-term storage. Juice prepared from the transgenic tomato fruit with reduced LePG and LeExp1 expression was more viscous than juice prepared from control fruit.

33 CFR 334.710 - The Narrows and Gulf of Mexico adjacent to Santa Rosa Island, Air Force Proving Ground Command...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false The Narrows and Gulf of Mexico... DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.710 The Narrows and Gulf of Mexico adjacent to.... The waters of The Narrows and the Gulf of Mexico easterly of the periphery of a circular area 5...

Gulf War Logistics: Theory Into Practice

DTIC Science & Technology

1995-04-01

sources are documentary in nature, emphasizing statistics like tonnage of supplies moved and number of troops sustained in the field. Other sources...Washington: GPO, 1993), 207-208. See also, Table 23 in Gulf War Air Power Survey Statistical Compendium. In Vol 3 of Gulf War Air Power Survey...Operational Structures Coursebook , (Maxwell AFB: Air Command and Staff College, 1995), 58. 40"Theater Logistics in the Gulf War: August 1990-December 1991

33 CFR 334.770 - Gulf of Mexico and St. Andrew Sound, south of East Bay, Fla., Tyndall Drone Launch Corridor...

Code of Federal Regulations, 2010 CFR

2010-07-01

... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...

33 CFR 334.770 - Gulf of Mexico and St. Andrew Sound, south of East Bay, Fla., Tyndall Drone Launch Corridor...

Code of Federal Regulations, 2014 CFR

2014-07-01

... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...

33 CFR 334.770 - Gulf of Mexico and St. Andrew Sound, south of East Bay, Fla., Tyndall Drone Launch Corridor...

Code of Federal Regulations, 2013 CFR

2013-07-01

... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...

33 CFR 334.770 - Gulf of Mexico and St. Andrew Sound, south of East Bay, Fla., Tyndall Drone Launch Corridor...

Code of Federal Regulations, 2012 CFR

2012-07-01

... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...

33 CFR 334.770 - Gulf of Mexico and St. Andrew Sound, south of East Bay, Fla., Tyndall Drone Launch Corridor...

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Gulf of Mexico and St. Andrew... ARMY, DEPARTMENT OF DEFENSE DANGER ZONE AND RESTRICTED AREA REGULATIONS § 334.770 Gulf of Mexico and St....; restricted area. (a) The area. The waters of the Gulf of Mexico and St. Andrew Sound within an area described...

Gulf War illness: a view from Australia

PubMed Central

Sim, Malcolm; Kelsall, Helen

2006-01-01

Australia sent a small, mostly naval, deployment to the 1991 Gulf War. When papers and media concerns arose about unexplained Gulf War illnesses in Gulf War troops from other countries, Australia decided to undertake its own study of Australian veterans. Undertaking a later study, more than 10 years after the Gulf War, allowed us to incorporate some methodological improvements on previous research, such as the inclusion of a face-to-face health assessment where more objective health data could be collected in addition to using a postal questionnaire. Despite the different Gulf War experience for the mostly naval Australian group, there were remarkable consistencies in the patterns of multiple symptom reporting found in overseas studies, including the fact that no unique symptom clusters were identified. In general, this excess symptom reporting was not found to occur with excesses in more objective measures of physical health. These objective physical measures included a wide range of haematological, biochemical and serological markers, a physical examination, spirometry and a step test of fatigability. In contrast, several psychological disorders, including anxiety, post-traumatic stress disorder, depression and substance abuse, were found to occur in excess in the Australian Gulf War group and were associated with Gulf War psychological stressors. These findings have helped raise awareness in Australia of psychological health problems in deployed military personnel. PMID:16687266

Energy levels, wavelengths, and radiative transition probabilities for the Na-like ions with 38 [le] Z [le] 45

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ying Zhang; Qiren Zhu; Shoufu Pan

1992-11-01

The investigation by Z.-Q Zhang et al. (Acta Optica Sinica 11, 193, 1991) shows that it is possible to realize soft X-ray lasing in the water window 23.3-43.8 [Angstrom] with the Na-like recombination scheme, which requires a lower pumping power at a high-power laser facility than that with other schemes. The fine-structure levels with n [le] 15 and l [le] 6 in Na-like ions with 38 [le] Z [le] 45 and the probabilities for radiative transitions between these levels are calculated using the multiconfiguration Dirac-Fock approach. The calculations show that the wavelengths of the anticipated laser transitions 6 f-4d andmore » 6g-4f in the Na-like ions with 38 [le] Z [le] 43 and 5f-4d and 5g-4f in the Na-like ions with 40 [le] Z [le] 45 lie in the region of the water window.« less

Joint inversion of marine MT and CSEM data over Gemini prospect, Gulf of Mexico

NASA Astrophysics Data System (ADS)

Constable, S.; Orange, A. S.; Key, K.

2013-12-01

In 2003 we tested a prototype marine controlled-source electromagnetic (CSEM) transmitter over the Gemini salt body in the Gulf of Mexico, collecting one line of data over 15 seafloor receiver instruments using the Cox waveform with a 0.25 Hz fundamental, yielding 3 usable frequencies. Transmission current was 95 amps on a 150 m antenna. We had previously collected 16 sites of marine magnetotelluric (MT) data along this line during the development of broadband marine MT as a tool for mapping salt geometry. Recently we commissioned a finite element code capable of joint CSEM and MT 2D inversion incorporating bathymetry and anisotropy, and this heritage data set provided an opportunity to explore such inversions with real data. We reprocessed the CSEM data to obtain objective error estimates and inverted single frequency CSEM, multi-frequency CSEM, MT, and joint MT and CSEM data sets for a variety of target misfits, using the Occam regularized inversion algorithm. As expected, MT-only inversions produce a smoothed image of the salt and a resistive basement at 9 km depth. The CSEM data image a conductive cap over the salt body and have little sensitivity to the salt or structure at depths beyond about 1500 m below seafloor. However, the joint inversion yields more than the sum of the parts - the outline of the salt body is much sharper and there is much more structural detail even at depths beyond the resolution of the CSEM data. As usual, model complexity greatly depends on target misfit, and even with well-estimated errors the choice of misfit becomes a somewhat subjective decision. Our conclusion is a familiar one; more data are always good.

High-resolution barotropic tide modelling in the South China Sea

NASA Astrophysics Data System (ADS)

Luu, Quang-Hung; Tkalich, Pavel

2016-04-01

The South China Sea (SCS) links two of the largest open oceans, the Pacific and the Indian, mainly through the Luzon-Taiwan Straits in the northeast and the Malacca-Karimata Straits in the southwest, respectively. It has a rhino-like shape of 3000-km long, whose belly is contiguous to Vietnam and back leans on the Philippines. The highly irregular topography includes the Gulf of Tonkin in the north, the Gulf Thailand in the southwest, and several small islands in the middle of SCS (i.e., the Spratly and the Paracels) resulting in complicated astronomic tides and tidal dynamics in this region. In this study, we present high-resolution simulation of tides in the SCS using the Semi-Implicit Eulerian-Lagrangian Finite-Element (SELFE) model. We derive the bathymetry from the Shuttle Radar Topography Mission (SMRT) 15-arc second dataset, one of the finest global topography data sources. Our particular interest is to resolve small bathymetry features and islands in the middle of the SCS which we obtained by digitizing very-high resolution satellite images (30-m accuracy). An unstructured triangular mesh comprising of up to 5 million nodes is generated to resolve these features with very high accuracy, while maintaining fairly coarse resolution in rest of the domain. The model is configured to run in barotropic mode by forcing harmonic oscillations from FES2012 global tide predictions along open boundaries, adjusted to account for volume transport at key channels in the SCS. Computed surface elevations and currents agree well with available tide predictions and measurements. Sensitivity study is performed to analyze the role of the small bathymetry features on distorting tides in the SCS.

La Recherche du Quark Top dans le Canal $e$ + Jets a D0 (in French)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lebrat, Jean-Francois

1996-05-01

Le travail de thèse qui est résumé ici a débuté en 1993, alors que l'existence du quark top n'avait pas encore été mise en évidence expérimentalement. Il se concentre sur la recherche du top dans l'un de ses modes de désintégration, le canal e + jets, et utilise l'ensemble des outils d'identication des particules et d'analyse développés par la collaboration DØ. L'analyse présentée ici est la première à utiliser le TRD (le Détecteur à Rayonnement de Transition, qui a été mis au point et fabriqué à Saclay) pour une meilleure identication de l'électron.Nous présenterons tout d'abord le quark top, enmore » décrivant la place qu'il occupe dans le modèle utilisé par les physiciens des particules, le Modèle Standard. Nous montrerons ainsi que l'existence du quark top était prédite par le modèle bien avant sa découverte, et indiquerons ainsi les raisons qui ont motivé notre analyse....« less

76 FR 41766 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-15

... group Spanish mackerel, and Gulf group cobia. It also contains measures to remove cero, little tunny... separate cobia into Atlantic and Gulf migratory groups. Similar measures are being proposed for the...

30 CFR 219.412 - How will the qualified OCS revenues be divided?

Code of Federal Regulations, 2010 CFR

2010-07-01

... will be disbursed to the Land and Water Conservation Fund. Each Gulf producing State will receive at... Water Conservation Fund 12.5 Gulf Producing States 30 Gulf Producing State Coastal Political...

Bonnie Takes Aim at an Oily Gulf

NASA Image and Video Library

2010-07-24

Tropical Storm Bonnie, now a depression, rakes South Florida in this infrared image from NASA Atmospheric Infrared Sounder , en route to a weekend run-in with the Gulf of Mexico and the Gulf oil spill.

50 CFR 654.1 - Purpose and scope.

Code of Federal Regulations, 2010 CFR

2010-10-01

..., DEPARTMENT OF COMMERCE STONE CRAB FISHERY OF THE GULF OF MEXICO General Measures § 654.1 Purpose and scope... of the Gulf of Mexico, prepared by the Gulf of Mexico Fishery Management Council under the Magnuson...

Local sensitivities of the gulf stream separation

DOE PAGES

Schoonover, Joseph; Dewar, William K.; Wienders, Nicolas; ...

2016-12-05

Robust and accurate Gulf Stream separation remains an unsolved problem in general circulation modeling whose resolution will positively impact the ocean and climate modeling communities. Oceanographic literature does not face a shortage of plausible hypotheses that attempt to explain the dynamics of the Gulf Stream separation, yet a single theory that the community agrees on is missing. We investigate the impact of the Deep Western Boundary Current, coastline curvature, and continental shelf steepening on the Gulf Stream separation within regional configurations of the MIT General Circulation Model. Artificial modifications to the regional bathymetry are introduced to investigate the sensitivity ofmore » the separation to each of these factors. Metrics for subsurface separation detection confirm the direct link between flow separation and the surface expression of the Gulf Stream in the Mid-Atlantic Bight. Conversely, the Gulf Stream separation exhibits minimal sensitivity to the presence of the DWBC and coastline curvature. The implications of these results to the development of a “separation recipe” for ocean modeling are discussed. Furthermore, we conclude adequate topographic resolution is a necessary, but not sufficient, condition for proper Gulf Stream separation.« less

Mortality among US and UK veterans of the Persian Gulf War: a review.

PubMed

Kang, H K; Bullman, T A; Macfarlane, G J; Gray, G C

2002-12-01

Mortality data on Gulf War veterans was reviewed as a means of evaluating the long term consequences of the war. Studies were located from searches of Medline, Proceedings of the Conference on Federally Sponsored Gulf War Veterans' Illnesses Research, Proceedings of the American Public Health Association Annual Meetings, Annual Reports to Congress, and personal contacts with knowledgeable investigators. Data on study design, methods, and results were obtained from published studies of both US and UK veterans who served in the Persian Gulf. The methodology and results of studies are summarised and evaluated. Additional research recommendations based on reviewed studies are presented. It is concluded that in both US and UK studies, mortality from external causes was higher, while mortality from all illnesses was lower among Gulf War veterans in comparison to those of non-Gulf War veterans. Increased mortality from external causes is consistent with patterns of postwar mortality observed in veterans of previous wars. Further follow up of Gulf War veterans and their controls is warranted for evaluating the mortality risk from diseases with longer latency periods.

Benthic amphipods (Amphipoda: Gammaridea and Corophiidea) from the Mexican southeast sector of the Gulf of Mexico: checklist, new records and zoogeographic comments.

PubMed

Paz-Ríos, Carlos E; Ardisson, Pedro-Luis

2013-01-01

The southeast region of the Gulf of Mexico is considered to be biologically important, because it is a connection and transition zone between the Caribbean and the Gulf of Mexico, harboring great marine biodiversity. Nevertheless, benthic amphipods have been poorly studied in the Mexican southeast sector of the Gulf of Mexico with few studies listing species. The aim of this study is to provide an update checklist of species for the Mexican southeast sector (based on literature review and records from the present study) as well as a brief zoogeographical analysis for the Gulf of Mexico amphipod fauna, putting them in context with the fauna on the tropical western Atlantic. Fifty-five species were listed for the Mexican southeast sector; 36 of them showed a geographical extension to the Yucatan continental shelf representing 23 new records for the Mexican southeast sector, nine for the southeast region and four for the Gulf of Mexico. Based on the zoogeographical analysis, there is support of the application of Carolinian and Caribbean zoogeographic provinces to amphipods in the Gulf of Mexico.

Cancer du sein au Maroc: profil phénotypique des tumeurs

PubMed Central

Khalil, Ahmadaye Ibrahim; Bendahhou, Karima; Mestaghanmi, Houriya; Saile, Rachid; Benider, Abdellatif

2016-01-01

Le cancer du sein est le plus fréquent chez la femme et figure parmi les principales causes de mortalité liées au cancer. La curabilité de ce type tumoral est en augmentation, grâce aux programmes de dépistage et aux progrès thérapeutiques, qui ont certes augmenté la survie des patients. Mais des défis restent à relever en rapport avec l’instabilité phénotypique des cellules cancéreuses. L’objectif de ce travail est d’étudier le profil phénotypique du cancer du sein chez les patients pris en charge au Centre Mohammed VI pour le traitement des Cancers, durant les années 2013-2014. Il s’agit d’une étude transversale sur deux années, incluant les cas du cancer du sein pris en charge au Centre. Le recueil des données était fait à partir des dossiers des patients et analysés par le logiciel Epi Info. 1277 patients ont été pris en charge au sein de notre centre. 99,5% des cas de sexe féminin, l’âge moyen était 50,20 ± 11,34 ans. Le type histologique le plus fréquent était le carcinome canalaire infiltrant (80,7% des cas). Le stade diagnostic était précoce (56,9%). Le phénotype moléculaire le plus fréquent était le luminal A (41,4% des cas). Le luminal B, le HER2 et les triples négatifs étaient dans respectivement 10,4%, 6,3%, 11,2% des cas. L’étude du phénotype tumoral des patients atteints du cancer du sein permet l’orientation du clinicien dans le choix du traitement, et des décideurs dans la planification de programmes de lutte contre cette pathologie. PMID:28292037

Development of a sharp interface model that simulates coastal aquifer flow with the coupled use of GIS

NASA Astrophysics Data System (ADS)

Gemitzi, Alexandra; Tolikas, Demetrios

A simulation program, which works seamlessly with GIS and simulates flows in coastal aquifers, is presented in the present paper. The model is based on the Galerkin finite element discretization scheme and it simulates both steady and transient freshwater and saltwater flow, assuming that the two fluids are separated by a sharp interface. The model has been verified in simple cases where analytical solutions exist. The simulation program works as a tool of the GIS program, which is the main database that stores and manages all the necessary data. The combined use of the simulation and the GIS program forms an integrated management tool offering a simpler way of simulating and studying saline intrusion in coastal aquifers. Application of the model to the Yermasogia aquifer illustrates the coupled use of modeling and GIS techniques for the examination of regional coastal aquifer systems. Pour étudier un système aquifère côtier, nous avons développé un modèle aux éléments finis en quasi 3-D qui simule les écoulements d'eau douce et d'eau salée en régime aussi bien permanent que transitoire. Les équations qui les régissent sont discrétisées par un schéma de discrétisation de Garlekin aux éléments finis. Le modèle a été vérifié dans des cas simples où il existe des solutions analytiques. Toutes les données nécessaires sont introduites et gérées grâce à un logiciel de gestion de SIG. Le programme de simulation est utilisé comme un outil du logiciel de SIG, constituant ainsi un outil de gestion intégrée dont le but est de simuler et d'étudier l'intrusion saline dans les aquifères côtiers. L'application du modèle à l'aquifère de Yermasogia illustre l'utilisation couplée de la modélisation et des techniques de SIG pour l'étude des systèmes aquifères côtiers régionaux. Se ha desarrollado un modelo casi tridimensional de elementos finitos para simular el flujo de agua dulce y salada, tanto en régimen estacionario como en transitorio, en sistemas acuíferos costeros, bajo la hipótesis de separación por medio de una interfaz abrupta. Las ecuaciones del modelo han sido discretizadas mediante un esquema de Galerkin de discretización en elementos finitos. El modelo ha sido verificado en casos sencillos para los que existe solución analítica. Todos los datos necesarios se introducen y gestionan con un Sistema de Información Geográfica [SIG] por ordenador. El programa de simulación forma parte del programa de SIG, constituyendo una herramienta integrada de gestión para estudiar la intrusión salina en acuíferos costeros. La aplicación del modelo al acuífero de Yermasogia ilustra el uso acoplado de las técnicas de modelación y de SIG con el fin de examinar sistemas acuíferos costeros a escala regional.

Alternative lipid emulsions versus pure soy oil based lipid emulsions for parenterally fed preterm infants.

PubMed

Kapoor, Vishal; Glover, Rebecca; Malviya, Manoj N

2015-12-02

The pure soybean oil based lipid emulsions (S-LE) conventionally used for parenteral nutrition (PN) in preterm infants have high polyunsaturated fatty acid (PUFA) content. The newer lipid emulsions (LE) from alternative lipid sources with reduced PUFA content may improve clinical outcomes in preterm infants. To determine the safety and efficacy of the newer alternative LE compared with the conventional S-LE for PN in preterm infants. We used the standard search strategy of the Cochrane Neonatal Review Group (CNRG) to search the Cochrane Central Register of Controlled Trials (CENTRAL; Issue 7), MEDLINE (1946 to 31 July 2015), EMBASE (1947 to 31 July 2015), CINAHL (1982 to 31 July 2015), Web of Science (31 July 2015), conference proceedings, trial registries (clinicaltrials.gov, controlled-trials.com, WHO's ICTRP), and the reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. Randomised or quasi-randomised controlled trials in preterm infants (< 37 weeks), comparing newer alternative LE with S-LE. Data collection and analysis conformed to the methods of the CNRG. We assessed the quality of evidence for important outcomes using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, in addition to reporting the conventional statistical significance of results. Fifteen studies (N = 979 infants) are included in this review. Alternative LE including medium chain triglycerides/long chain triglycerides (MCT/LCT) LE (3 studies; n = 108), MCT-olive-fish-soy oil-LE (MOFS-LE; 7 studies; n = 469), MCT-fish-soy oil-LE (MFS-LE; 1 study; n = 60), olive-soy oil-LE (OS-LE; 7 studies; n = 406), and borage-soy oil-LE (BS-LE; 1 study; n = 34) were compared with S-LE. The different LE were also considered together to compare 'all fish oil containing-LE' versus S-LE (7 studies; n = 499) and 'all alternative LE' versus S-LE (15 studies; n = 979). Some studies had multiple intervention arms and were included in more than one comparison. No study compared pure fish oil-LE or structured-LE to S-LE.The GRADE quality of evidence (GRADE QoE) ranged from 'low' to 'very low.' Evidence came mostly from small single centre studies, many focusing on biochemical aspects as their primary outcomes, with optimal information size not achieved for the important clinical outcomes in any comparison.In the primary outcomes of the review there was a pooled effect towards decreased bronchopulmonary dysplasia (BPD) in OS-LE vs S-LE (4 studies, n = 261) not reaching statistical significance (typical risk ratio (RR) 0.69, 95% confidence interval (CI) 0.46 to 1.04, I² = 32%; typical risk difference (RD) -0.08, 95% CI -0.17 to 0.00, I² = 76%; GRADE QoE: 'very low'). No difference in BPD was observed in any other comparison. There were no statistically significant differences in the primary outcomes of death, growth rate (g/kg/day) or days to regain birth weight in any comparison.Retinopathy of prematurity (ROP) stage 1-2 was reported to be statistically significantly lower in one single centre study (n = 80) in the MOFS-LE group compared with the S-LE group (1/40 vs 12/40, respectively; RR 0.08, 95% CI 0.01 to 0.61; RD -0.27, 95% CI -0.43 to -0.12; number needed to benefit (NNTB) 4, 95% CI 2 to 8). However there were no statistically significant differences in the secondary outcome of ROP ≥ stage 3 in any of the individual studies or in any comparison (GRADE QoE: 'low' to 'very low'). No other study reported on ROP stages 1 and 2 separately.There were no statistically significant differences in the secondary outcomes of sepsis, PN associated liver disease (PNALD)/cholestasis, ventilation duration, necrotising enterocolitis (NEC) ≥ stage 2, jaundice requiring treatment, intraventricular haemorrhage grade III-IV, periventricular leukomalacia (PVL), patent ductus arteriosus (PDA), hypertriglyceridaemia, and hyperglycaemia in any comparison.No study reported on neurodevelopmental outcomes or essential fatty acid deficiency. All lipid emulsions in this review appeared to be safe and were well tolerated in preterm infants. Compared with the pure soy oil based LE, use of MOFS-LE was associated with a decrease in the early stages (1-2) of ROP in one study. However there were no statistically significant differences in clinically important outcomes including death, growth, BPD, sepsis, ROP ≥ stage 3, and PNALD with the use of newer alternative LE versus the conventional pure soy oil based LE (GRADE QoE ranged from 'low' to 'very low'). Currently there is insufficient evidence to recommend any alternative LE over S-LE or vice versa in preterm infants.Larger randomised studies focusing on important clinical outcomes, targeting specific 'at risk' population subgroups (e.g. extreme prematurity, long term PN, etc), and exploring the effect of different proportions of lipid constituents are required to evaluate the effectiveness of newer lipid emulsions compared with the conventional pure soy based LE in preterm infants.

30 CFR 519.412 - How will the qualified OCS revenues be divided?

Code of Federal Regulations, 2012 CFR

2012-07-01

... 25 percent will be disbursed to the Land and Water Conservation Fund. Each Gulf producing State will... and Water Conservation Fund 12.5 Gulf Producing States 30 Gulf Producing State Coastal Political...

30 CFR 519.412 - How will the qualified OCS revenues be divided?

Code of Federal Regulations, 2013 CFR

2013-07-01

... 25 percent will be disbursed to the Land and Water Conservation Fund. Each Gulf producing State will... and Water Conservation Fund 12.5 Gulf Producing States 30 Gulf Producing State Coastal Political...

30 CFR 519.412 - How will the qualified OCS revenues be divided?

Code of Federal Regulations, 2014 CFR

2014-07-01

... 25 percent will be disbursed to the Land and Water Conservation Fund. Each Gulf producing State will... and Water Conservation Fund 12.5 Gulf Producing States 30 Gulf Producing State Coastal Political...

GuLF Study: The Gulf Long-Term Follow-Up Study

MedlinePlus

... Environmental Influences on Child Health Outcomes (ECHO) Exposure Biology Global Environmental Health Gulf Oil Spill Response Efforts ... to investigate the interplay between environmental exposures, human biology, genetics, and common diseases to help prevent disease ...

50 CFR 622.31 - Buoy gear identification.

Code of Federal Regulations, 2013 CFR

2013-10-01

... ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE CARIBBEAN, GULF OF MEXICO, AND SOUTH ATLANTIC Reef Fish Resources of the Gulf of Mexico § 622.31 Buoy gear identification. (a) Buoy gear. In the Gulf EEZ, if buoy...

50 CFR 216.250 - Specified activity and specified geographical region.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Weapon Missions in the Gulf of Mexico § 216.250 Specified activity and specified geographical region. (a... within the Eglin Air Force Base Gulf Test and Training Range within the northern Gulf of Mexico. The...

Personnel

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

2006-10-13

Le président du conseil M.Doran explique la décision que le conseil du Cern vient de prendre sur la 4.étape du régime complémentaire des pensions. Le président du comité des finances le Dr.Andersen ainsi que le Prof.Connor(?) prennent aussi la parole

Gulf Coast Deep Water Port Facilities study. Appendix B. North Central Gulf Hydrobiological Zones.

DTIC Science & Technology

1973-04-01

bottom and surface salinities , but their effect is more noticeable at the surface. Because of variation in these factors along the Gulf Coast... effects of discharge on salinity have been considered above. Numerous streams empty into the Gulf of Mexico along its north central portion but the...1967) investigated various aspects of osmoregulation in blue crabs in Mississippi Sound and adjacent waters and observed that salinity and temperature

33 CFR 165.T08-0434 - Safety Zone; Mile Marker 98.5 West of Harvey Lock Gulf Intracoastal Waterway to Mile Marker 108.5...

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Safety Zone; Mile Marker 98.5 West of Harvey Lock Gulf Intracoastal Waterway to Mile Marker 108.5 West of Harvey Lock Gulf... § 165.T08-0434 Safety Zone; Mile Marker 98.5 West of Harvey Lock Gulf Intracoastal Waterway to Mile...

Additional Sediment/Soil Sampling Conducted at the Little Sioux Bend Shallow Water Habitat Project Site during October 2013

DTIC Science & Technology

2013-11-01

Conditions in the Missouri River and Gulf of Mexico ................................................43 4.3 Comparison of Total Phosphorus Levels...Sediment Management” which assessed nutrient loadings to the Missouri River and Gulf of Mexico (NRC, 2011). The report concluded that potential...concern regarding Gulf of Mexico hypoxia. Currently, the total phosphorus load to the Gulf of Mexico is estimated to be 154,300 metric tons per year

Kuwait Oil Fires, Persian Gulf, Qatar Peninsula

NASA Technical Reports Server (NTRS)

1991-01-01

This view up the Persian Gulf from the Qatar Peninsula into southern Iraq (25.5N, 51.0E) shows an excursion of the smoke plumes from the Kuwait oil fires set during the short Persian Gulf War. Smoke from the fires north of Kuwait City, extends across the Persian Gulf while a larger smoke plume from the southern fires heads into southern Saudi Arabia before beginning to spread out and become more diffuse.

Coexistence of tumid lupus erythematosus with systemic lupus erythematosus and discoid lupus erythematosus: a report of two cases of tumid lupus.

PubMed

Stead, Jennifer; Headley, Catherine; Ioffreda, Michael; Kovarik, Carrie; Werth, Victoria

2008-12-01

Tumid lupus erythematosus (LE) is a rare variant of chronic cutaneous LE that is characterized clinically by smooth, nonscarring, pink to violaceous papules or plaques without evidence of surface change. Histopathologic features include superficial and deep lymphocytic infiltration in a perivascular and periadnexal distribution, with dermal interstitial mucin deposition and focal or absent dermoepidermal junction involvement. These clinical and histopathologic features can be challenging to differentiate from other cutaneous diseases. This is particularly true because patients with tumid LE usually do not have other manifestations of systemic LE or cutaneous LE. We present 2 cases of tumid LE, one associated with concomitant systemic LE and the other occurring concurrently with discoid LE. Furthermore, we demonstrate the rare occurrence of a patient with tumid LE occurring below the waist at a photo-protected site.

NASA Earth Observations Track the Gulf Oil Spill

NASA Technical Reports Server (NTRS)

Jones, Jason B.; Childs, Lauren

2010-01-01

The NASA Applied Sciences Program created the Gulf of Mexico Initiative (GOMI) in 2007 "to enhance the region s ability to recover from the devastating hurricanes of 2005 and to address its coastal management issues going into the future." The GOMI utilizes NASA Earth science assets to address regional priorities defined by the Gulf of Mexico Alliance, a partnership formed by the states of Alabama, Florida, Louisiana, Mississippi, and Texas, along with 13 federal agencies and 4 regional organizations to promote regional collaboration and enhance the ecological and economic health of the Gulf of Mexico. NASA's GOMI is managed by the Applied Science and Technology Project Office at Stennis Space Center and has awarded over $18 million in Gulf of Mexico research since 2008. After the Deepwater Horizon oil spill, GOMI personnel assisted members of the Gulf of Mexico Alliance with obtaining NASA remote sensing data for use in their oil spill response efforts.

Involvement of LeMDR, an ATP-binding cassette protein gene, in shikonin transport and biosynthesis in Lithospermum erythrorhizon.

PubMed

Zhu, Yu; Lu, Gui-Hua; Bian, Zhuo-Wu; Wu, Feng-Yao; Pang, Yan-Jun; Wang, Xiao-Ming; Yang, Rong-Wu; Tang, Cheng-Yi; Qi, Jin-Liang; Yang, Yong-Hua

2017-11-13

Shikonin is a naphthoquinone secondary metabolite with important medicinal value and is found in Lithospermum erythrorhizon. Considering the limited knowledge on the membrane transport mechanism of shikonin, this study investigated such molecular mechanism. We successfully isolated an ATP-binding cassette protein gene, LeMDR, from L. erythrorhizon. LeMDR is predominantly expressed in L. erythrorhizon roots, where shikonin accumulated. Functional analysis of LeMDR by using the yeast cell expression system revealed that LeMDR is possibly involved in the shikonin efflux transport. The accumulation of shikonin is lower in yeast cells transformed with LeMDR-overexpressing vector than that with empty vector. The transgenic hairy roots of L. erythrorhizon overexpressing LeMDR (MDRO) significantly enhanced shikonin production, whereas the RNA interference of LeMDR (MDRi) displayed a reverse trend. Moreover, the mRNA expression level of LeMDR was up-regulated by treatment with shikonin and shikonin-positive regulators, methyl jasmonate and indole-3-acetic acid. There might be a relationship of mutual regulation between the expression level of LeMDR and shikonin biosynthesis. Our findings demonstrated the important role of LeMDR in transmembrane transport and biosynthesis of shikonin.

Lupus enteritis: clinical characteristics and predictive factors for recurrence.

PubMed

Koo, B S; Hong, S; Kim, Y J; Kim, Y-G; Lee, C-K; Yoo, B

2015-05-01

To compare the clinical characteristics of lupus enteritis (LE) and non-enteric lupus (non-LE) patients and identify predictors of LE recurrence. We retrospectively reviewed the medical records of 62 systemic lupus erythematosus (SLE) patients in a tertiary hospital who experienced enteric symptoms and underwent abdominal computed tomography scanning between January 1997 and December 2013. We compared the clinical characteristics between LE and non-LE patients and between recurrent LE and non-recurrent LE cases. Out of 62 SLE patients with enteric symptoms, 46 cases (74%) were compatible with LE based on computed tomography findings. The C4 level was decreased in the LE group compared with the non-LE group (9.0 ± 5.6 vs. 12.3 ± 6.2, p = 0.032). Recurrence of LE was observed in 14 patients (28%). Initial involvement at the colon (79% vs. 41%, p = 0.026) and bladder with/without the ureter was more common in the recurrent group (57% vs. 25%, p = 0.048). By multivariate analysis, the hazard ratios of variables associated with recurrence were 4.689 for colon involvement (95% confidence interval: 1.245-17.659, p = 0.0220] and 5.468 for cystitis with/without ureteritis (95% confidence interval: 1.629-18.360, p = 0.006). Colon and urinary tract involvement in LE patients may be associated with the recurrence of LE. © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

Préface

NASA Astrophysics Data System (ADS)

Ouerdane, Youcef; Laporte, Pierre

2005-06-01

L'objectif de la série de colloques UVX est de réunir, au rythme d'une fois tous les deux ans, les scientifiques et industriels travaillant dans le domaine du développement des sources de photon de grande énergie (UV, VUV, et X) et de leurs applications. En particulier cette manifestation est l'occasion de faire se rencontrer une communauté très pluridisciplinaire (physique, chimie, biologie, sciences de l'univers) liée à des domaines en forte évolution technologique (lasers et rayonnement synchrotron notamment). Le colloque UVX 2004 s'est tenu au Palais des Congrès de Saint-Étienne (42000) du 7 au 11 juin 2004. La période écoulée depuis l'édition précédente (Oléron 2002) a été particulièrement active dans tous les domaines concernés : grands projets de sources, méthodes de diagnostic au sens large. Une nouvelle fois on constate que le bref et l'ultra-bref ont une place privilégiée, qu'il s'agisse du travail sur les accélérateurs ou sur les lasers qui, bien sûr, dans la course aux temps courts remportent la palme avec la présence de spécialistes du domaine attoseconde. La communauté représentée a la chance d'être en prise directe avec de très grands projets en phase active de réalisation comme le Laser Megajoule (LMJ), la source SOLEIL, et un projet d'ampleur plus modeste mais remarquable dans son domaine : la source LASERIX d'Orsay/Palaiseau. On pourra citer aussi le projet Arc en Ciel qui, lui, est encore au stade de sa définition. - SOLEIL, source de nouvelle génération de rayonnement synchrotron (plateau de Saclay) est dans une phase active de réalisation : achèvement de l'infrastructure en 2005 et injection du 1o faisceau dans l'anneau de stockage prévu également en 2005. Cette source devrait être la meilleure au monde dans le domaine VUV/X mous, tout en restant très polyvalente (brillance, accordabilité, structure temporelle, polarisation) et complémentaire de l'ESRF. Au final on disposera de 21 lignes de lumière sur onduleurs et 22 sur aimants de courbure. Les premiers “utilisateurs” sont prévus au printemps 2006 avec couverture de l'IR jusqu'aux X durs pour des études variées notamment dans le domaine de la matière condensée. - La LIL (ligne d'intégration laser) du LMJ fonctionne avec 4 faisceaux (de 30 kJ à 351 nm) et un ensemble de diagnostics plasma est en cours de validation (énergie, imagerie X, spectrométrie X). Un souci d'ouverture collaborative (France et étranger) est affiché. - LASERIX (LIXAM, LOA) a pour but de doter les scientifiques français d'un laser émettant en “quasi-routine” de l'émission laser X à 6 tirs/mn basée sur différents schémas collisionnels et donc différentes longueurs d'ondes, et mettant en oeuvre un laser saphir-titane ultra bref de 40 J pour la génération plasma. - Le projet Arc en Ciel (CEA, LOA) se penche sur la possibilité de mise en oeuvre d'une source de “4^ogénération”. Ces sources se veulent à la fois brillantes, cohérentes, dans la gamme des 100 femtosecondes, ce qui conduit à tourner le dos aux anneaux de stockage pour se focaliser sur la combinaison accélérateur linéaire/onduleur, complétée par un laser saphir-titane (génération d'harmoniques UV/X dans des gaz). - Une avancée particulièrement intéressante a été récemment réalisée, notamment au LOA, par injection d'un laser X (plasma) par un faisceau X de bonne qualité (polarisation, divergence, temps, contraste...) issu de la génération d'harmoniques élevées par une chaîne saphir-titane femto. - On notera aussi les avancées réalisées dans le domaine des sources incohérentes de forte intensité dans le domaine des X par interaction optimisée de l'interaction laser de puissance-agrégats (GPS-Paris 6 et 7, CEA Saclay), ainsi que par techniques X-pinch à fils à foyer de 10 microns (LPTP-École Polytechnique). - La génération d'harmoniques d'ordres élevés à partir de chaînes laser amplifiées a continué à faire l'objet de très belles études, d'une part par génération dans les gaz et l'obtention bien maîtrisée et caractérisée de rayonnement attoseconde utilisé maintenant pour des mesures effectives de processus électroniques au sein des atomes, et d'autre part par focalisation sur cible solide. Ces derniers travaux (CEA et LOA), par mise en oeuvre du concept de “miroir plasma” qui combat l'ASE, ont permis de monter que la génération d'harmoniques cohérents sur solide était effective. - Dans le domaine des sources UV deux exposés ont présenté l'état de l'art des sources diodes ellesmêmes (LED et Lasers), ainsi que le développement des sources laser ps haute cadence (multikHz/MHz) avec génération d'harmoniques, de puissance moyenne élevée adaptée à de nombreux secteurs applicatifs (traitement des matériaux, biologie, microscopie...). L'aspect “sources”, au sens large était, on le voit, particulièrement représenté avec de belles perspectives pour les années qui viennent. Au delà de ces développements, les sources X ont été utilisées pour des réalisations instrumentales intéressantes dans le domaine de la microscopie X, de la microscopie interférentielle, et de la reconstruction 3D. De tels travaux sont susceptibles de rapides transferts en direction du secteur bio/santé. On notera également l'avancée que représente la réalisation d'un spectromètre à transformée de Fourier pour VUV/XUV (LCFIO/LPPM/SOLEIL). Le domaine du diagnostic, de la mesure, et de la modélisation dans les plasmas est, lui aussi, très actif avec des outils expérimentaux et théoriques très conséquents : modélisation des propriétés spectrales des ions multichargés (CEA-DAM) ; coefficients d'absorption de plasmas lasers (CEA-DSM, LULI, CEA-DAM) ; spectres d'absorption X dans les plasmas femtosecondes incluant des expériences type “pompe-sonde” résolues spatialement et spectralement (LULI, CEA-DAM, CELIA) ; interaction laseratome/molécule en régime UVX ultra-bref (CELIA)... Dans le domaine que l'on peut appeler, au sens large, “travail des matériaux”, on distinguera particulièrement les avancées dans le domaine de la microlithographie “prévues” par road map, avec l'arrivée semble-t-il inéluctable des technologies UVX à 13,5 nm. Les enjeux économiques favorisent des avancées technologiques multiples (optiques multicouches en réflexion, sources...). Par ailleurs l'aptitude des technologies femto pour l'ablation quasi athermique (micro-usinage) et le dépôt de couches minces spécifiques se confirme tout à fait. Enfin, à fluence plus faible, l'outil laser reste un instrument de choix pour l'étude de l'interaction photon-surface : désorption sous illumination laser à excimères à 157 nm et photoémission/photoconductivité du diamant sous éclairement ultra-bref de l'infrarouge à l'UVX. Nous tenons à remercier les membres du comité d'organisation, le comité scientifique et les différents partenaires, institutionnels et industriels, qui par leur soutien ont permis que le colloque UVX puisse se dérouler. Ce colloque a été parrainé par plusieurs départements du CNRS, la Délégation Générale de l'Armement (DGA), le CEA DRECAM, le CEA DAM, le Conseil Général de la Loire, l'Université Jean MONNET de Saint-Étienne, Saint-Étienne Métropole, la ville de Saint-Étienne, Le Pôle Optique Rhône-Alpes, la Société Française d'Optique et le Groupement de Recherche “SAXO” du CNRS. À tous, nous donnons rendez-vous à Caen pour UVX-2006. Youcef OUERDANE Pierre LAPORTE

Late glacial to Holocene water level and climate changes in the Gulf of Gemlik, Sea of Marmara: evidence from multi-proxy data

NASA Astrophysics Data System (ADS)

Filikci, Betül; Eriş, Kürşad Kadir; Çağatay, Namık; Sabuncu, Asen; Polonia, Alina

2017-10-01

Multi-proxy analyses of new piston core M13-08 together with seismic data from the Gulf of Gemlik provide a detailed record of paleoceanographic and paleoclimatic changes with special emphasis on the timing of the connections between the Sea of Marmara (SoM) and the Gulf of Gemlik during the late Pleistocene to Holocene. The deposition of a subaqueous delta sourced from the Armutlu River to the north is attributed to the lowstand lake level at -60 m in the gulf prior to 13.5 cal ka BP. On the basis of the seismic data, it is argued that the higher lake level (-60 m) in the gulf compared to the SoM level (-85 m) attests to its disconnection from the SoM during the late glacial period. Ponto-Caspian assemblages in the lacustrine sedimentary unit covering the time period between 13.5 and 12 cal ka BP represent a relict that was introduced into the gulf by a Black Sea outflow during the marine isotope stage 3 interstadial. Contrary to the findings of previous studies, the data suggest that such an outflow into the Gulf of Gemlik during the late glacial period could have occurred only if the SoM lake level (-85 m) was shallower than the sill depth (-55 m) of the gulf in the west. A robust age model of the core indicates the connection of the gulf with the marine SoM at 12 cal ka BP, consistent with the sill depth (-55 m) of the gulf on the global sea level curve. Strong evidence of a marine incursion into the gulf is well documented by the μ-XRF Sr/Ca data. The available profiles of elemental ratios in core M13-08, together with the age-depth model, imply that a warm and wet climate prevailed in the gulf during the early Holocene (12-10.1 cal ka BP), whereas the longest drought occurred during the middle Holocene (8.2-5.4 cal ka BP). The base of the main Holocene sapropel in the gulf is dated at 10.1 cal ka BP, i.e., 500 years younger than its equivalent in the SoM. The late Holocene is earmarked by warm and wet climate periods (5.0-4.2 and 4.2-2.7 cal ka BP) with some brief cold/dry periods (4.2 and 2.7-0.9 cal ka BP).

Gulf war illness--better, worse, or just the same? A cohort study.

PubMed

Hotopf, Matthew; David, Anthony S; Hull, Lisa; Nikalaou, Vasilis; Unwin, Catherine; Wessely, Simon

2003-12-13

Firstly, to describe changes in the health of Gulf war veterans studied in a previous occupational cohort study and to compare outcome with comparable non-deployed military personnel. Secondly, to determine whether differences in prevalence between Gulf veterans and controls at follow up can be explained by greater persistence or greater incidence of disorders. Occupational cohort study in the form of a postal survey. Military personnel who served in the 1991 Persian Gulf war; personnel who served on peacekeeping duties to Bosnia; military personnel who were deployed elsewhere ("Era" controls). All participants had responded to a previous survey. United Kingdom. Self reported fatigue measured on the Chalder fatigue scale; psychological distress measured on the general health questionnaire, physical functioning and health perception on the SF-36; and a count of physical symptoms. Gulf war veterans experienced a modest reduction in prevalence of fatigue (48.8% at stage 1, 43.4% at stage 2) and psychological distress (40.0% stage 1, 37.1% stage 2) but a slight worsening of physical functioning on the SF-36 (90.3 stage 1, 88.7 stage 2). Compared with the other cohorts Gulf veterans continued to experience poorer health on all outcomes, although physical functioning also declined in Bosnia veterans. Era controls showed both lower incidence of fatigue than Gulf veterans, and both comparison groups showed less persistence of fatigue compared with Gulf veterans. Gulf war veterans remain a group with many symptoms of ill health. The excess of illness at follow up is explained by both higher incidence and greater persistence of symptoms.

The Low-Level Flow Along the Gulf of California During the North American Monsoon.

NASA Astrophysics Data System (ADS)

Bordoni, S.; Stevens, B.

2007-05-01

Six-years (1999-2004) of QuikSCAT near-surface ocean winds are used to study the flow over the northeast Pacific and the Gulf of California (GoC) during the North American Monsoon season. The wind data show that the onset of the summer season is accompanied by a reversal of the flow along the GoC, with the establishment of a mean southerly wind throughout the gulf. This reversal occurs in late spring and precedes the onset of the monsoonal rains. In the heart of the monsoon season, the time-mean flow is found to be composed of periods of enhanced southerly winds associated with gulf surges. The role that gulf surges play in modulating the GoC mean southerly flow is further explored by performing an EOF analysis of the summertime daily wind anomalies. A gulf surge mode emerges from this analysis as the leading EOF, with the corresponding principal component time series interpretable as an objective index for gulf surge occurrence. This index is used as a reference time series for regression analysis, to explore the relationship between gulf surges and precipitation over the core and marginal regions of the monsoon, as well as the manifestation of these transient events in the large-scale circulation. It is found that, although seemingly mesoscale features confined over the GoC, gulf surges are intimately linked to patterns of large-scale variability of the eastern Pacific ITCZ and greatly contribute to the definition of the northward extent of the monsoonal rains.

The Gulf of Mexico ecosystem, six years after the Macondo oil well blowout

NASA Astrophysics Data System (ADS)

Joye, Samantha B.; Bracco, Annalisa; Özgökmen, Tamay M.; Chanton, Jeffrey P.; Grosell, Martin; MacDonald, Ian R.; Cordes, Erik E.; Montoya, Joseph P.; Passow, Uta

2016-07-01

The Gulf of Mexico ecosystem is a hotspot for biological diversity and supports a number of industries, from tourism to fishery production to oil and gas exploration, that serve as the economic backbone of Gulf coast states. The Gulf is a natural hydrocarbon basin, rich with stores of oil and gas that lie in reservoirs deep beneath the seafloor. The natural seepage of hydrocarbons across the Gulf system is extensive and, thus, the system's biological components experience ephemeral, if not, frequent, hydrocarbon exposure. In contrast to natural seepage, which is diffuse and variable over space and time, the 2010 Macondo oil well blowout, represented an intense, focused hydrocarbon infusion to the Gulf's deepwaters. The Macondo blowout drove rapid shifts in microbial populations and activity, revealed unexpected phenomena, such as deepwater hydrocarbon plumes and marine "oil snow" sedimentation, and impacted the Gulf's pelagic and benthic ecosystems. Understanding the distribution and fate of Macondo oil was limited to some degree by an insufficient ability to predict the physical movement of water in the Gulf. In other words, the available physical oceanographic models lacked critical components. In the past six years, much has been learned about the physical oceanography of the Gulf, providing transformative knowledge that will improve the ability to predict the movement of water and the hydrocarbons they carry in future blowout scenarios. Similarly, much has been learned about the processing and fate of Macondo hydrocarbons. Here, we provide an overview of the distribution, fate and impacts of Macondo hydrocarbons and offer suggestions for future research to push the field of oil spill response research forward.

Comparative mortality among US military personnel in the Persian Gulf region and worldwide during Operations Desert Shield and Desert Storm.

PubMed

Writer, J V; DeFraites, R F; Brundage, J F

1996-01-10

To determine cause-specific mortality rates among US troops stationed in the Persian Gulf region and compare them with those of US troops serving elsewhere during Operations Desert Shield and Desert Storm. Retrospective cohort. US men and women on active duty from August 1, 1990, through July 31, 1991. Deaths occurring among all active-duty US military persons during the 1-year study period. Age-adjusted mortality rates among US troops stationed in the Persian Gulf region were compared with rates projected from mortality rates among troops on active duty elsewhere. A total of 1769 active-duty persons died during the study period, 372 in the Persian Gulf region and 1397 elsewhere. Of the 372 deaths in the Persian Gulf region, 147 (39.5%) occurred as a direct result of combat during the war, 194 (52.2%) resulted from injuries not incurred in battle, and 30 (8%) resulted from illness. Twenty-three of the deaths due to illness were considered unexpected or cardiovascular deaths. Based on age-adjusted mortality rates observed among US troops on active duty outside the Persian Gulf region, 165 deaths from unintentional injury and 32 deaths from illness (20 of which were unexpected or cardiovascular) would have been anticipated among Persian Gulf troops. Except for deaths from unintentional injury, US troops in the Persian Gulf region did not experience significantly higher mortality rates than US troops serving elsewhere. There were no clusters of unexplained deaths. The number and circumstances of nonbattle deaths among Persian Gulf troops were typical for the US military population.

[Cognitive enrichment in farm animals--the impact of social rank and social environment on learning behaviour of dwarf goats].

PubMed

Baymann, Ulrike; Langbein, Jan; Siebert, Katrin; Nürnberg, Gerd; Manteuffel, Gerhard; Mohr, Elmar

2007-01-01

The influence of social rank and social environment on visual discrimination learning of small groups of Nigerian dwarf goats (Capra hircus, n = 79) was studied using a computer-controlled learning device integrated in the animals' home pen. The experiment was divided into three sections (LE1, LE1 u, LE2; each 14d). In LE1 the goats learned a discrimination task in a socially stable environment. In LE1u animals were mixed and relocated to another pen and given the same task as in LE1. In LE2 the animals were mixed and relocated again and given a new discrimination task. We used drinking water as a primary reinforcer. The rank category of the goats were analysed as alpha, omega or middle ranking for each section of the experiment. The rank category had an influence on daily learning success (percentage of successful trials per day) only in LE1 u. Daily learning success decreased after mixing and relocation of the animals in LE1 u and LE2 compared to LE1. That resulted in an undersupply of drinking water on the first day of both these tasks. We discuss social stress induced by agonistic interactions after mixing as a reason for that decline. The absolute learning performance (trials to reach the learning criterion) of the omega animals was lower in LE2 compared to the other rank categories. Furthermore, their absolute learning performance was lower in LE2 compared to LE1. For future application of similar automated learning devices in animal husbandry, we recommend against the combination of management routines like mixing and relocation with changes in the learning task because of the negative effects on learning performance, particularly of the omega animals.

30 CFR 219.412 - How will the qualified OCS revenues be divided?

Code of Federal Regulations, 2011 CFR

2011-07-01

... producing States, and 25 percent will be disbursed to the Land and Water Conservation Fund. Each Gulf... (General Fund) 50 Land and Water Conservation Fund 12.5 Gulf Producing States 30 Gulf Producing State...

78 FR 12048 - Gulf Shore Energy Partners, LP; Notice of Abbreviated Application for Limited Amendment to...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-21

... Convenience and Necessity On February 11, 2013, Gulf Shore Energy Partners, LP (``Gulf Shore''), filed an abbreviated application for limited amendment to certificate of public convenience and necessity pursuant to...

MISR GoMACCS Products

Atmospheric Science Data Center

2016-11-25

Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) Gulf of Mexico Atmospheric Composition and Climate Study (GoMACCS) is an intensive ... study area encompasses Texas and the northwestern Gulf of Mexico during July, August, September, and October, 2006. The Multi-angle ...

Gulf of Mexico

Atmospheric Science Data Center

2014-05-15

article title:  Continued Spread of Gulf of Mexico Oil Slick       View ... passed over the Deepwater Horizon oil slick in the Gulf of Mexico on May 8, 2010, at approximately 16:50 UTC (11:50 a.m. local time), then ...

Why is Coastal Community Resilience Important in the Gulf of Mexico Region?

EPA Pesticide Factsheets

The Gulf of Mexico Program supports the regional collaborative approach and efforts of the Coastal Community Resilience Priority Issue Team of the Gulf of Mexico Governors’ Alliance and its broad spectrum of partners and stakeholders.

Review of the circulation in the Beibu Gulf, South China Sea

NASA Astrophysics Data System (ADS)

Gao, Jingsong; Wu, Guidan; Ya, Hanzheng

2017-04-01

Although Beibu Gulf holds a significant geographical location and is rich in fishery resources, it has attracted only limited attention from researchers in recent decades. This study summarizes the conclusions based on the observations and model results regarding the circulation and cold water mass in the Beibu Gulf to provide a reference for further research. Affected by wind and density gradient, the spring circulation may be gulf-scale cyclonic and nested with an enclosed cyclonic gyre in the northern gulf and unclosed cyclonic gyre in the southern gulf. Meanwhile, the mechanisms of summer circulation remain controversial. Along with the results of a new numerical model, historical observations suggest that summer circulation is cyclonic and anticyclonic in the northern and southern gulfs, respectively. The northern and southern gulfs are mainly influenced by wind stress curl and South China Sea current, respectively. Similarly, although different views regarding the structure of winter circulation have been presented, a large amount of evidence supports the existence of two cyclonic gyres in the northern and southern gulfs. In addition, a southwestward current off the northwestern coast of Hainan Island is present. The circulation structure in the fall is similar to that in winter. However, the cyclonic gyre in the southern Gulf has a greater tendency to intrude northwards into the Beibu Gulf in fall than in winter, and the currents off the coast of Vietnam and the northwestern coast of Hainan Island are weaker in fall than those in winter. Most studies indicate that winter boreal circulation is driven by the monsoon wind. The most recent observations and model results suggest that the current in the Qiongzhou Strait (QS) is eastward on certain days in the boreal summer and is affected by the difference between the sea levels of the two ends of the QS and tidal rectification. Correspondingly, the volume transport is approximately -0.1 Sv (minus sign represents westward) in spring and from -0.1 to -0.4 Sv in boreal winter. By contrast, the volume transport in summer remains controversial. The cold water mass in the Beibu Gulf is generated locally in spring, matures in summer, and disappears in fall. Heat flux and wind dominate the formation of the cold water mass, and tidal mixing and topographic effects influence the variations in the cold water mass.

Global climate change impacts on coastal ecosystems in the Gulf of Mexico: considerations for integrated coastal management

USGS Publications Warehouse

Day, John W.; Yáñez-Arancibia, Alejandro; Cowan, James H.; Day, Richard H.; Twilley, Robert R.; Rybczyk, John R.

2013-01-01

Global climate change is important in considerations of integrated coastal management in the Gulf of Mexico. This is true for a number of reasons. Climate in the Gulf spans the range from tropical to the lower part of the temperate zone. Thus, as climate warms, the tropical temperate interface, which is currently mostly offshore in the Gulf of Mexico, will increasingly move over the coastal zone of the northern and eastern parts of the Gulf. Currently, this interface is located in South Florida and around the US-Mexico border in the Texas-Tamaulipas region. Maintaining healthy coastal ecosystems is important because they will be more resistant to climate change.

Earthquake Triggering in the September 2017 Mexican Earthquake Sequence

NASA Astrophysics Data System (ADS)

Fielding, E. J.; Gombert, B.; Duputel, Z.; Huang, M. H.; Liang, C.; Bekaert, D. P.; Moore, A. W.; Liu, Z.; Ampuero, J. P.

2017-12-01

Southern Mexico was struck by four earthquakes with Mw > 6 and numerous smaller earthquakes in September 2017, starting with the 8 September Mw 8.2 Tehuantepec earthquake beneath the Gulf of Tehuantepec offshore Chiapas and Oaxaca. We study whether this M8.2 earthquake triggered the three subsequent large M>6 quakes in southern Mexico to improve understanding of earthquake interactions and time-dependent risk. All four large earthquakes were extensional despite the the subduction of the Cocos plate. The traditional definition of aftershocks: likely an aftershock if it occurs within two rupture lengths of the main shock soon afterwards. Two Mw 6.1 earthquakes, one half an hour after the M8.2 beneath the Tehuantepec gulf and one on 23 September near Ixtepec in Oaxaca, both fit as traditional aftershocks, within 200 km of the main rupture. The 19 September Mw 7.1 Puebla earthquake was 600 km away from the M8.2 shock, outside the standard aftershock zone. Geodetic measurements from interferometric analysis of synthetic aperture radar (InSAR) and time-series analysis of GPS station data constrain finite fault total slip models for the M8.2, M7.1, and M6.1 Ixtepec earthquakes. The early M6.1 aftershock was too close in time and space to the M8.2 to measure with InSAR or GPS. We analyzed InSAR data from Copernicus Sentinel-1A and -1B satellites and JAXA ALOS-2 satellite. Our preliminary geodetic slip model for the M8.2 quake shows significant slip extended > 150 km NW from the hypocenter, longer than slip in the v1 finite-fault model (FFM) from teleseismic waveforms posted by G. Hayes at USGS NEIC. Our slip model for the M7.1 earthquake is similar to the v2 NEIC FFM. Interferograms for the M6.1 Ixtepec quake confirm the shallow depth in the upper-plate crust and show centroid is about 30 km SW of the NEIC epicenter, a significant NEIC location bias, but consistent with cluster relocations (E. Bergman, pers. comm.) and with Mexican SSN location. Coulomb static stress change calculations by Toda et al. (Temblor.net) from NEIC FFM showed significant positive change at epicenter of Ixtepec quake, but very small change for Puebla quake. Our analysis will update these calculations. We are planning to add seismic waveforms to our inversions to estimate kinematic fault slip evolution models that will enable dynamic stress transfer calculations.

Le sevrage de l’allaitement

PubMed Central

Grueger, Barbara

2013-01-01

RÉSUMÉ L’allaitement exclusif assure une alimentation optimale aux nourrissons jusqu’à l’âge de six mois. Par la suite, les nourrissons ont besoin d’aliments complémentaires pour répondre à leurs besoins nutritionnels. C’est alors que le sevrage commence. Le sevrage désigne le processus graduel d’introduction d’aliments complémentaires au régime du nourrisson, tout en poursuivant l’allaitement. Il n’y a pas de moment universellement accepté ou scientifiquement démontré pour mettre un terme à l’allaitement. Le moment et le processus de sevrage doivent être adaptés par la mère et l’enfant. Le sevrage peut être soudain ou graduel, prendre plusieurs semaines ou plusieurs mois, être dirigé par l’enfant ou par la mère. Les médecins doivent orienter et soutenir les mères tout au long du processus de sevrage. Le présent document remplace le document de principes sur le sevrage qu’a publié la Société canadienne de pédiatrie en 2004.

Transient tidal eddy motion in the western Gulf of Maine, part 1: Primary structure

NASA Astrophysics Data System (ADS)

Brown, W. S.; Marques, G. M.

2013-07-01

High frequency radar-derived surface current maps of the Great South Channel (GSC) in the western Gulf of Maine in 2005 revealed clockwise (CW) and anticlockwise (ACW) eddy motion associated with the strong regional tidal currents. To better elucidate the kinematics and dynamics of these transient tidal eddy motions, an observational and modeling study was conducted during the weakly stratified conditions of winter 2008-2009. Our moored bottom pressure and ADCP current measurements in 13m depth were augmented by historical current measurements in about 30m in documenting the dominance of highly polarized M2 semidiurnal currents in our nearshore study region. The high-resolution finite element coastal ocean model (QUODDY) - forced by the five principal tidal constituents - produced maps depicting the formation and evolution of the CW and ACW eddy motions that regularly follow maximum ebb and flood flows, respectively. Observation versus model current comparison required that the model bottom current drag coefficient be set to at an unusually high Cd=0.01 - suggesting the importance of form drag in the study region. The observations and model results were consistent in diagnosing CW or ACW eddy motions that (a) form nearshore in the coastal boundary layer (CBL) for about 3h after the respective tidal current maxima and then (b) translate southeastward across the GSC along curved 50m isobath at speeds of about 25m/s. Observation-based and model-based momentum budget estimates were consistent in showing a first order forced semidiurnal standing tidal wave dynamics (like the adjacent Gulf of Maine) which was modulated by adverse pressure gradient/bottom stress forcing to generate the eddy motions. Observation-based estimates of terms in the transport vorticity budget showed that in the shallower Inner Zone subregion (average depth=23m) that the diffusion of nearshore vorticity was dominant in feeding the growth of eddy motion vorticity; while in the somewhat deeper Outer Zone subregion (33m) bottom current lateral shear and water column stretching/squashing was significant in modulating the eddy motion. We conclude that the transient eddy motions in the GSC region are phase eddies that accompany the change of tide across the GSC and are (1) generated by bottom stress gradients in the shallower nearshore - an issue which needs to be better understood for improved future forecasting.

Trial of Naltrexone and Dextromethorphan for Gulf War Veterans Illnesses

DTIC Science & Technology

2011-07-01

W81XWH-09-2-0065 TITLE: Trial of Naltrexone and Dextromethorphan for Gulf War Veterans Illnesses PRINCIPAL INVESTIGATOR: William J. Meggs, MD...2011 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Trial of Naltrexone and Dextromethorphan for Gulf War Veterans’ Illness 5b. GRANT NUMBER W81XWH-09...that many with Gulf War Illness could enter either the naltrexone or dextromethorphan arm but not both. We are applying to allow subjects to enter

JPRS Report, Near East & South Asia.

DTIC Science & Technology

1989-05-12

Market [GULF DAILY NEWS 16 Mar] 8 Canadians To Explore Potential Joint Ventures [GULF DAILY NEWS 19 Mar] 8 Island To Sign Pact on Toxic Waste [GULF...is affiliated with the Institute of Research and Study of the Arab and Muslim World in Aix-en-Provence, Westerners, in order to learn about the...the program, and the start of the program’s operation will be announced. A study prepared by the fund and published by the Gulf News Agency

Seagrasses in northern Gulf of Mexico: An ecosystem in trouble

USGS Publications Warehouse

,

2000-01-01

The USGS National Wetlands Research Center has documented that Seagrasses in the northern Gulf of Mexico constitute an ecosystem in trouble. From studies in St. Andrews Bay, Period Bay, the Chandeleur Islands, and the Gulf Islands National Seashore, scientists have discovered that declining seagrass acreage ranges from 12% to 66% in bays and estuaries of the Gulf of Mexico. Not only are seagrasses disappearing, but they are also changing in species composition, densities, and patchiness.

Ships at anchor, Gulf of Oman

NASA Technical Reports Server (NTRS)

1983-01-01

These supertankers, riding at anchor off the coast of the United Arab Emirates, Gulf of Oman (25.5N, 56.5E) cast long shadows and eddy currents in the late afternoon sun. The ships are anchored just outside the Persian Gulf. Because of a surplus of supertankers in the world, many of them are simply moored in the Gulf of Oman where they can be safely anchored and yet be close to the oil ports when activated.

Improving Cognitive Function in Veterans with Gulf War Illness by Improving Cerebral Vascular Function

DTIC Science & Technology

2017-10-01

AWARD NUMBER: W81XWH-16-1-0610 TITLE: Improving Cognitive Function in Veterans with Gulf War Illness by Improving Cerebral Vascular Function...From - To) 15 Sep 2016 - 14 Sep 2017 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Improving Cognitive Function in Veterans with Gulf War Illness by...investigate a relationship between cognitive impairment in Veterans with Gulf War Illness (GWI) and reduced vasodilatory function. One of the multiple

Thunderstorm, Texas Gulf Coast, USA

NASA Image and Video Library

1990-04-29

This thunderstorm along the Texas Gulf Coast (29.0N, 95.0W), USA is seen as the trailing edge of a large cloud mass formed along the leading edge of a spring frontal system stretching northwest to southeast across the Texas Gulf Coast. This system brought extensive severe weather and flooding to parts of Texas and surrounding states. Muddy water discharging from coastal streams can be seen in the shallow Gulf of Mexico as far south as Lavaca Bay.

Identifying Immune Drivers of Gulf War Illness Using a Novel Daily Sampling Approach

DTIC Science & Technology

2017-10-01

AWARD NUMBER: W81XWH-12-1-0557 TITLE: Identifying Immune Drivers of Gulf War Illness Using a Novel Daily Sampling Approach PRINCIPAL...TITLE AND SUBTITLE Identifying Immune Drivers of Gulf War Illness Using A Novel 5a. CONTRACT NUMBER Daily Sampling Approach 5b. GRANT NUMBER...INTRODUCTION: The major aim of this research project is to identify aspects of the immune system that are dysregulated in veterans with Gulf War Illness

Last millennium sedimentation in the Gulf of Cariaco (NE Venezuela): Evidence for morphological changes of gulf entrance and possible relations with large earthquakes

NASA Astrophysics Data System (ADS)

Aguilar, Iliana; Beck, Christian; Audemard, Franck; Develle, Anne-Lise; Boussafir, Mohammed; Campos, Corina; Crouzet, Christian

2016-01-01

The Cariaco Basin and the Gulf of Cariaco in Venezuela are two major basins along the seismogenic El Pilar right lateral fault, among which the Cariaco Basin is a pull-apart. Both basins are sites of anoxia and organic-rich deposits. To examine whether the sediments in the Gulf of Cariaco have recorded traces of historical or prehistorical earthquakes, we extracted and analyzed twelve 1 m-long gravity cores, sampling the last millennium sedimentation. We focused on analyzing the sediment sources with different techniques (particle size analysis, XRF, loss on ignition tests, magnetic properties, Rock-Eval pyrolysis, 14C dating). The results confirm that major upwelling occurs at the western gulf entrance and makes deep water flowing from the Cariaco Basin into the Gulf of Cariaco. These flows carry an organic-rich suspended load. Furthermore, we found evidence of a particular, widespread fine-grained siliciclastic deposit (named SiCL3) within the gulf, whose age suggests that it likely formed during the large 1853 AD earthquake that stroke the Cumaná city. We suggest that the earthquake-induced large submarine landslides that modified the topography of the gulf's entrance, which in turn promoted upwelling and open marine water flows from the Cariaco Basin. The layer SiCL3 would be the sediment load remobilized during this chain of events.

Stable isotopes differentiate bottlenose dolphins off west-central Florida

USGS Publications Warehouse

Barros, Nélio B.; Ostrom, P. H.; Stricker, Craig A.; Wells, R.S.

2010-01-01

Distinguishing discrete population units among continuously distributed coastal small cetaceans is challenging and crucial to conservation. We evaluated the utility of stable isotopes in assessing group membership in bottlenose dolphins (Tursiops truncatus) off west-central Florida by analyzing carbon, nitrogen, and sulfur isotope values (δ13C, δ15N, and δ34S) of tooth collagen from stranded dolphins. Individuals derived from three putative general population units: Sarasota Bay (SB), nearshore Gulf of Mexico (GULF), and offshore waters (OFF). Animals of known history (SB) served to ground truth the approach against animals of unknown history from the Gulf of Mexico (GULF, OFF). Dolphin groups differed significantly for each isotope. Average δ13C values from SB dolphins (−10.6‰) utilizing sea grass ecosystems differed from those of GULF (−11.9‰) and OFF (−11.9‰). Average δ15N values of GULF (12.7‰) and OFF (13.2‰) were higher than those of SB dolphins (11.9‰), consistent with differences in prey trophic levels. δ34S values showed definitive differences among SB (7.1‰), GULF (11.3‰), and OFF (16.5‰) dolphins. This is the first application of isotopes to population assignment of bottlenose dolphins in the Gulf of Mexico and results suggest that isotopes may provide a powerful tool in the conservation of small cetaceans.

Gulf War Syndrome: a review of current knowledge and understanding.

PubMed

Minshall, D

2014-01-01

The 1991 Persian Gulf War was a resounding military success for coalition forces, who liberated Kuwait following the Iraqi invasion. The medical legacy we have from the conflict is the poorly understood, yet remarkable, phenomenon of Gulf War Syndrome, which surfaced soon after. Epidemiological research has proven beyond doubt that Gulf War veterans report a wide variety of symptoms, in excess of appropriately matched control subjects, and experience worse general health. Numerous toxic environmental hazards have been suggested as causes of Gulf War Syndrome, yet exhaustive scientific study has failed to provide conclusive proof of any link. No novel or recognised disease has been found to account for the symptomatic burden of veterans, and the optimal treatment remains uncertain. This understanding can be added to from an anthropological perspective, where the narratives of those afflicted provide further insight. The nature of military life was changing at the time of the Gulf War, challenging the identity and beliefs of some veterans and causing socio-cultural distress. The symptomatic presentation of Gulf War Syndrome can be considered an articulation of this disharmony. Gulf War Syndrome can also be considered within the group of post-combat disorders such as shellshock, the like of which have occurred after major wars in the last century. With the current withdrawal from Afghanistan, the Defence Medical Services (DMS) should heed the lessons of history.

What was different about exposures reported by male Australian Gulf War veterans for the 1991 Persian Gulf War, compared with exposures reported for other deployments?

PubMed

Glass, Deborah C; Sim, Malcolm R; Kelsall, Helen L; Ikin, Jill F; McKenzie, Dean; Forbes, Andrew; Ittak, Peter

2006-07-01

This study identified chemical and environmental exposures specifically associated with the 1991 Persian Gulf War. Exposures were self-reported in a postal questionnaire, in the period of 2000-2002, by 1,424 Australian male Persian Gulf War veterans in relation to their 1991 Persian Gulf War deployment and by 625 Persian Gulf War veterans and 514 members of a military comparison group in relation to other active deployments. Six of 28 investigated exposures were experienced more frequently during the Persian Gulf War than during other deployments; these were exposure to smoke (odds ratio [OR], 4.4; 95% confidence interval, 3.0-6.6), exposure to dust (OR, 3.7; 95% confidence interval, 2.6-5.3), exposure to chemical warfare agents (OR, 3.9; 95% confidence interval, 2.1-7.9), use of respiratory protective equipment (OR, 13.6; 95% confidence interval, 7.6-26.8), use of nuclear, chemical, and biological protective suits (OR, 8.9; 95% confidence interval, 5.4-15.4), and entering/inspecting enemy equipment (OR, 3.1; 95% confidence interval, 2.1-4.8). Other chemical and environmental exposures were not specific to the Persian Gulf War deployment but were also reported in relation to other deployments. The number of exposures reported was related to service type and number of deployments but not to age or rank.

Searching for a Gulf War syndrome using cluster analysis.

PubMed

Everitt, B; Ismail, K; David, A S; Wessely, S

2002-11-01

Gulf veterans report medically unexplained symptoms more frequently than non-Gulf veterans did. We examined whether Gulf and non-Gulf veterans could be distinguished by their patterns of symptom reporting. A k-means cluster analysis was applied to 500 randomly sampled veterans from each of three United Kingdom military cohorts of veterans; those deployed to the Gulf conflict between 1990 and 1991; to the Bosnia peacekeeping mission between 1992 and 1997; and military personnel who were in active service but not deployed to the Gulf (Era). Sociodemographic, health variables and scores for ten symptom groups were calculated. The gap statistic indicated the five-group solution as one that provided a particularly informative description of the structure in the data. Cluster 1 consisted of low scores for all symptom groups. Cluster 2 had veterans with highest symptom scores for musculoskeletal symptoms and high scores for psychiatric symptoms. Cluster 3 had high scores for psychiatric symptoms and marginally elevated scores for the remaining nine groups symptom groups. Cluster 4 had elevated scores for musculoskeletal symptoms only and cluster 5 was distinguishable from the other clusters in having high scores in all symptom groups, especially psychiatric and musculoskeletal. The findings do not support the existence of a unique syndrome affecting a subgroup of Gulf veterans but emphasize the excess of non-specific self-reported ill health in this group.

Astronaut observations of the Persian (Arabian) Gulf during STS-45

NASA Technical Reports Server (NTRS)

Ackleson, Steven G.; Pitts, David E.; Sullivan, Kathryn D.; Reynolds, R. M.

1992-01-01

As a result of the 1991 Persian Gulf war, between mid-January and June 1991, the Persian Gulf was contaminated with an estimated 4 to 6 million barrels of crude oil, released directly into the Gulf from refinement facilities, transhipment terminals, and moored tankers along the coast of Kuwait, and precipitated from oil fire smoke plumes. To assess the environmental impact of the oil, an international team of marine scientists representing 14 nations was assembled under the auspices of the United Nations International Oceanic Commission and the Regional Organization for Protection of the Marine Environment to conduct detailed surveys of the Persian Gulf, the Strait of Hormuz, and the Gulf of Oman, including hydrographic, chemical, and biological measurements. To supplement the field surveys and to serve as an aid in data interpretation, astronauts aboard the Space Shuttle Atlantis photographed water features and coastal habitats in the Persian Gulf during mission STS-45 (24 March to 02 April 1992). The astronauts collected 111 hand-held, color photographs of the Gulf (72 70-mm photographs and 39 5-inch photographs) from an altitude of 296 km (160 n.mi.). The photographs reveal distributions in water turbidity associated with outflow from the Shatt-al-Arab and water circulation along the entire coast of Iran and the Strait of Hormuz, coastal wetlands and shallow-water habitats, and sticks appearing in the sunglint pattern, which appear to be oil.

Exploring the biomechanics of taurodontism.

PubMed

Benazzi, Stefano; Nguyen, Huynh N; Kullmer, Ottmar; Hublin, Jean-Jacques

2015-02-01

Taurodontism (i.e. enlarged pulp chamber with concomitant apical displacement of the root bi/trifurcation) is considered a dental anomaly with relatively low incidence in contemporary societies, but it represents a typical trait frequently found in Neandertal teeth. Four hypotheses can be envisioned to explain the high frequency in Neandertals: adaptation to a specific occlusal loading regime (biomechanical advantage), adaptation to a high attrition diet, pleiotropic or genetic drift effects. In this contribution we used finite element analysis (FEA) and advanced loading concepts based on macrowear information to evaluate whether taurodontism supplies some dental biomechanical advantages. Loads were applied to the digital model of the lower right first molar (RM1 ) of the Neandertal specimen Le Moustier 1, as well as to the digital models of both a shortened and a hyper-taurodontic version of Le Moustier RM1 . Moreover, we simulated a scenario where an object is held between teeth and pulled in different directions to investigate whether taurodontism might be useful for para-masticatory activities. Our results do not show any meaningful difference among all the simulations, pointing out that taurodontism does not improve the functional biomechanics of the tooth and does not favour para-masticatory pulling activities. Therefore, taurodontism should be considered either an adaptation to a high attrition diet or most likely the result of pleiotropic or genetic drift effects. Finally, our results have important implications for modern dentistry during endodontic treatments, as we observed that filling the pulp chamber with dentine-like material increases tooth stiffness, and ultimately tensile stresses in the crown, thus favouring tooth failure. © 2014 Anatomical Society.

Water Masses and Nutrient Sources to the Gulf of Maine

PubMed Central

Townsend, David W.; Pettigrew, Neal R.; Thomas, Maura A.; Neary, Mark G.; McGillicuddy, Dennis J.; O’Donnell, James

2016-01-01

The Gulf of Maine, a semi-enclosed basin on the continental shelf of the northwest Atlantic Ocean, is fed by surface and deep water flows from outside the Gulf: Scotian Shelf Water from the Nova Scotian shelf that enters the Gulf at the surface, and Slope Water that enters at depth and along the bottom through the Northeast Channel. There are two types of Slope Water, Labrador Slope Water (LSW) and Warm Slope Water (WSW); it is these deep water masses that are the major source of dissolved inorganic nutrients to the Gulf. It has been known for some time that the volume inflow of Slope Waters of either type that enters the Gulf of Maine is variable, that it co-varies with the magnitude of inflowing Scotian Shelf Water, and that periods of greater inflows of Scotian Shelf Water have become more frequent in recent years, accompanied by reduced Slope Water inflows. We present here analyses of a ten-year record of data collected by moored sensors in Jordan Basin, in the interior Gulf of Maine, and in the Northeast Channel, along with recent and historical hydrographic and nutrient data, that help reveal the nature of Scotian Shelf Water and Slope Water inflows. Proportional inflows of nutrient-rich Slope Waters and nutrient-poor Scotian Shelf Waters alternate episodically with one another on time scales of months to several years, creating a variable nutrient field upon which the biological productivities of the Gulf of Maine and Georges Bank depend. Unlike decades past, the inflows of Slope Waters of either type do not appear to be correlated with the North Atlantic Oscillation, which had been shown earlier to influence the relative proportions of the two Slope Waters, WSW and LSW, that enter the Gulf. We suggest that of greater importance in recent years are more frequent, episodic influxes of colder, fresher, less dense, and low-nutrient Scotian Shelf Water into the Gulf of Maine, and concomitant reductions in the inflow of deep, nutrient-rich Slope Waters. We also discuss evidence of modified Gulf Stream ring water that penetrated to Jordan Basin in summer of 2013. PMID:27721519

Water Masses and Nutrient Sources to the Gulf of Maine.

PubMed

Townsend, David W; Pettigrew, Neal R; Thomas, Maura A; Neary, Mark G; McGillicuddy, Dennis J; O'Donnell, James

2015-01-01

The Gulf of Maine, a semi-enclosed basin on the continental shelf of the northwest Atlantic Ocean, is fed by surface and deep water flows from outside the Gulf: Scotian Shelf Water from the Nova Scotian shelf that enters the Gulf at the surface, and Slope Water that enters at depth and along the bottom through the Northeast Channel. There are two types of Slope Water, Labrador Slope Water (LSW) and Warm Slope Water (WSW); it is these deep water masses that are the major source of dissolved inorganic nutrients to the Gulf. It has been known for some time that the volume inflow of Slope Waters of either type that enters the Gulf of Maine is variable, that it co-varies with the magnitude of inflowing Scotian Shelf Water, and that periods of greater inflows of Scotian Shelf Water have become more frequent in recent years, accompanied by reduced Slope Water inflows. We present here analyses of a ten-year record of data collected by moored sensors in Jordan Basin, in the interior Gulf of Maine, and in the Northeast Channel, along with recent and historical hydrographic and nutrient data, that help reveal the nature of Scotian Shelf Water and Slope Water inflows. Proportional inflows of nutrient-rich Slope Waters and nutrient-poor Scotian Shelf Waters alternate episodically with one another on time scales of months to several years, creating a variable nutrient field upon which the biological productivities of the Gulf of Maine and Georges Bank depend. Unlike decades past, the inflows of Slope Waters of either type do not appear to be correlated with the North Atlantic Oscillation, which had been shown earlier to influence the relative proportions of the two Slope Waters, WSW and LSW, that enter the Gulf. We suggest that of greater importance in recent years are more frequent, episodic influxes of colder, fresher, less dense, and low-nutrient Scotian Shelf Water into the Gulf of Maine, and concomitant reductions in the inflow of deep, nutrient-rich Slope Waters. We also discuss evidence of modified Gulf Stream ring water that penetrated to Jordan Basin in summer of 2013.

La Vie Politique sous la Restauration a Travers ’Le Rouge et le Noir’ de Stendahl (The Political Life during the Restauration as Depicted in Le Rouge et le Noir by Stendahl)

DTIC Science & Technology

1989-01-01

de la classe dirigeante est le clerg6. M. le vicaire de Frilair est le bras droit de l ’&veque dle Besangon et...sympathique effort de recherche ;la documentation contribue bien A 6clairer lanalyse. INTERPRETATION: L 𔄀tude des aspects de la vie politique sous la...References Ouvrages consultes AXccesion For NTIS CRA&I DTIC TA9 El Unanno ’-,’ 1 : By 442.-. - L -- A, _ojes Aof -d/or * A- Dans l’L*tude des

How Radiation Oncologists Evaluate and Incorporate Life Expectancy Estimates Into the Treatment of Palliative Cancer Patients: A Survey-Based Study

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tseng, Yolanda D., E-mail: ydtseng@partners.org; Krishnan, Monica S.; Sullivan, Adam J.

2013-11-01

Purpose: We surveyed how radiation oncologists think about and incorporate a palliative cancer patient’s life expectancy (LE) into their treatment recommendations. Methods and Materials: A 41-item survey was e-mailed to 113 radiation oncology attending physicians and residents at radiation oncology centers within the Boston area. Physicians estimated how frequently they assessed the LE of their palliative cancer patients and rated the importance of 18 factors in formulating LE estimates. For 3 common palliative case scenarios, physicians estimated LE and reported whether they had an LE threshold below which they would modify their treatment recommendation. LE estimates were considered accurate whenmore » within the 95% confidence interval of median survival estimates from an established prognostic model. Results: Among 92 respondents (81%), the majority were male (62%), from an academic practice (75%), and an attending physician (70%). Physicians reported assessing LE in 91% of their evaluations and most frequently rated performance status (92%), overall metastatic burden (90%), presence of central nervous system metastases (75%), and primary cancer site (73%) as “very important” in assessing LE. Across the 3 cases, most (88%-97%) had LE thresholds that would alter treatment recommendations. Overall, physicians’ LE estimates were 22% accurate with 67% over the range predicted by the prognostic model. Conclusions: Physicians often incorporate LE estimates into palliative cancer care and identify important prognostic factors. Most have LE thresholds that guide their treatment recommendations. However, physicians overestimated patient survival times in most cases. Future studies focused on improving LE assessment are needed.« less

Memorandum of Understanding with the Mississippi Gulf Coast Community College

EPA Pesticide Factsheets

The purpose of the Memorandum of Understanding signed October 1, 2013 is to increase cooperation between Mississippi Gulf Coast Community College and the U.S Environmental Protection Agency’s Gulf of Mexico Program in areas of mutual interest.

Physical and Moral Courage: An Essential Personal Attribute of a Successful Theater Strategic Commander

DTIC Science & Technology

2008-10-31

Emerson. Mission With LeMay. Garden City, NY: Doubleday, 1965: 13-14. 37 Feltus , Pamela. "Great Warrior Leaders/Thinkers: LeMay, Curtis E." Air...77 Feltus , "Great Warrior Leaders/Thinkers: LeMay, Curtis E." Air University Library. 78 Anders, Fighting Airmen, 247. 79 Ibid. 80 LeMay, Mission...With LeMay, 231. 81 Feltus , "Great Warrior Leaders/Thinkers: LeMay, Curtis E." Air University Library. 82 Anders, Fighting Airmen, 253. 83 Johnson

Frequency Assignment, Sharing and Conservation in Systems (Aerospace). (l’Attribution, le partage et la conservation des frequences pour les systemes aeronautiques et spatiales)

DTIC Science & Technology

1999-01-01

que pour les installations et le personnel mis ä sa disposition. T- l Technical Evaluation Report of the RTO...radiocommunications sur le radar, on peut mettre en oeuvre des techniques de Formation de Faisceau par le Calcul qui permettent d’augmenter encore le niveau...plus 6loign6s pouvant fonctionner sur les mSmes canaux de frequence que le radar sans g£ne mutuelle1. equipements de radiocommunication

Le(x) glycan mediates homotypic adhesion of embryonal cells independently from E-cadherin: a preliminary note.

PubMed

Handa, Kazuko; Takatani-Nakase, Tomoka; Larue, Lionel; Stemmler, Marc P; Kemler, Rolf; Hakomori, Sen-itiroh

2007-06-22

Le(x) glycan and E-cadherin (Ecad) are co-expressed at embryonal stem (ES) cells and embryonal carcinoma (EC) cells. While the structure and function of Ecad mediating homotypic adhesion of these cells have been well established, evidence that Le(x) glycan also mediates such adhesion is weak, despite the fact that Le(x) oligosaccharide inhibits the compaction process. To provide stronger evidence, we knocked out Ecad gene in EC and ES cells to establish F9 Ecad (-/-) and D3M Ecad (-/-) cells, which highly express Le(x) glycan but do not express Ecad at all. Both F9 Ecad (-/-) and D3M Ecad (-/-) cells displayed strong autoaggregation in the presence of Ca(2+), while PYS-2 cells, which express trace amount of Ecad and undetectable level of Le(x) glycan, did not display autoaggregation. In addition, F9 Ecad (-/-) and D3M Ecad (-/-) cells displayed strong adhesion to plates coated with Le(x) glycosphingolipid (III(3)FucnLc4Cer), in dose-dependent manner, in the presence of Ca(2+). Thus, ES or EC cells display autoaggregation and strong adhesion to Le(x)-coated plates in the absence of Ecad, further supporting the notion of Le(x) self-recognition (i.e., Le(x)-to-Le(x) interaction) in cell adhesion.

Tomato linalool synthase is induced in trichomes by jasmonic acid

PubMed Central

van Schie, Chris C. N.; Haring, Michel A.

2007-01-01

Tomato (Lycopersicon esculentum) plants emit a blend of volatile organic compounds, which mainly consists of terpenes. Upon herbivory or wounding, the emission of several terpenes increases. We have identified and characterized the first two tomato monoterpene synthases, LeMTS1 and LeMTS2. Although these proteins were highly homologous, recombinant LeMTS1 protein produced (R)-linalool from geranyl diphosphate (GPP) and (E)-nerolidol from farnesyl diphosphate (FPP), while recombinant LeMTS2 produced β-phellandrene, β-myrcene, and sabinene from GPP. In addition, these genes were expressed in different tissues: LeMTS1 was expressed in flowers, young leaves, stems, and petioles, while LeMTS2 was strongest expressed in stems and roots. LeMTS1 expression in leaves was induced by spider mite-infestation, wounding and jasmonic acid (JA)-treatment, while LeMTS2 did not respond to these stimuli. The expression of LeMTS1 in stems and petioles was predominantly detected in trichomes and could be induced by JA. Because JA treatment strongly induced emission of linalool and overexpression of LeMTS1 in tomato resulted in increased production of linalool, we propose that LeMTS1 is a genuine linalool synthase. Our results underline the importance of trichomes in JA-induced terpene emission in tomato. PMID:17440821

Mitochondrial dysfunction in Gulf War illness revealed by 31Phosphorus Magnetic Resonance Spectroscopy: a case-control study.

PubMed

Koslik, Hayley J; Hamilton, Gavin; Golomb, Beatrice A

2014-01-01

Approximately 1/3 of 1990-1 Gulf War veterans developed chronic multisymptom health problems. Implicated exposures bear mechanisms that adversely affect mitochondria. Symptoms emphasize fatigue, cognition and muscle (brain and muscle are aerobically demanding); with protean additional domains affected, compatible with mitochondrial impairment. Recent evidence supports treatments targeting cell bioenergetics (coenzyme10) to benefit Gulf War illness symptoms. However, no evidence has directly documented mitochondrial or bioenergetic impairment in Gulf War illness. We sought to objectively assess for mitochondrial dysfunction, examining post-exercise phosphocreatine-recovery time constant (PCr-R) using (31)Phosphorus Magnetic Resonance Spectroscopy ((31)P-MRS), in Gulf War veterans with Gulf War illness compared to matched healthy controls. PCr-R has been described as a "robust and practical" index of mitochondrial status. Case-control study from 2012-2013. Fourteen community-dwelling Gulf War veterans and matched controls from the San Diego area comprised 7 men meeting CDC and Kansas criteria for Gulf War illness, and 7 non-deployed healthy controls matched 1:1 to cases on age, sex, and ethnicity. Calf muscle phosphocreatine was evaluated by (31)P-MRS at rest, through 5 minutes of foot pedal depression exercise, and in recovery, to assess PCr-R. Paired t-tests compared cases to matched controls. PCr-R was significantly prolonged in Gulf War illness cases vs their matched controls: control values, mean ± SD, 29.0 ± 8.7 seconds; case values 46.1 ± 18.0 seconds; difference 17.1 ± 14.9 seconds; p = 0.023. PCr-R was longer for cases relative to their matched controls for all but one pair; moreover while values clustered under 31 seconds for all but one control, they exceeded 35 seconds (with a spread up to 70 seconds) for all but one case. These data provide the first direct evidence supporting mitochondrial dysfunction in Gulf War illness. Findings merit replication in a larger study and/or corroboration with additional mitochondrial assessment tools.

Modelling the temporal and spatial distribution of ecological variables in Beibu Gulf

NASA Astrophysics Data System (ADS)

Pan, H.; Huang, L.; Yang, S.; Shi, D.; Pan, W.

2017-12-01

Beibu Gulf is an important semi-enclosed gulf located in northern South China Sea. It is rich in natural resources and its coastal rim is undergoing a rapid economic growth in recent years. Study on the spatial and temporal distribution of ecological variables by the influence of physical and biological processes in Beibu Gulf can provide the theoretical basis for the utilization of resources and environmental protection. Based on the MEC three-dimensional hydrodynamic model, a nutrient-phytoplankton-zooplankton-detritus (NPZD) model was applied to simulate the distribution of ecological variables in Beibu Gulf. The result shows that the ecosystem in Beibu Gulf is significantly influenced by dynamic conditions. In autumn and winter, great amount of nutrient-rich water from western Guangdong coastal area passes through Qiongzhou Strait and flows into Beibu Gulf, with about 108.3×103 t of inorganic nitrogen and 3.7×103 t of phosphate annually, leading to phytoplankton bloom. In summer, most of the nutrients come from rivers so high concentrations of nutrients and chlorophyll-a appear on estuaries. The annual net nutrient inputs from South China Sea into Beibu Gulf are 66.6×103 t for inorganic nitrogen and 4.6×103 t for phosphate. Phytoplankton plays an important role in nutrients' refreshment: a) Absorption by the process of photosynthesis is the biggest nutrient sink. b) Cellular release from dead phytoplankton is the biggest source in inorganic budget, making up for 33.4% of nitrogen consumed by photosynthesis while the process of respiration is the biggest source in phosphate budget, making up for 32.4% of phosphorus consumed by photosynthesis. c) Mineralization from detritus is also a considerable supplement of inorganic nutrients. Overall, biological process has more influence than physical process on the nutrient cycle budget in Beibu Gulf. The comparison of the result with remote sensing and in-situ data indicates that the model is able to simulate the biogeochemical characteristics in Beibu Gulf.

Habitat planning, maintenance and management working group

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

The Gulf of Mexico (GOM), called {open_quotes}America`s Sea,{close_quotes} is actually a small ocean basin covering over 1.5 million square kilometers. Because of the multiple uses, diversity, and size of the Gulf`s resources, management is shared by a number of governmental agencies including the Minerals Management Service, the Gulf of Mexico Fishery Management Council, the Gulf States Marine Fisheries Commission, National Marine Fisheries Service, the US Coast Guard, the US Army Corps of Engineers, and the five Gulf states fisheries agencies. All of these entities share a common goal of achieving optimum sustainable yield to maximize geological, biological, social, and economicmore » benefits from these resources. These entities also share a common theme that the successful management of the northern GOM requires maintenance and enhancement of both the quantity and quality of habitats. A closer look at the GOM shows the sediment to be clearly dominated by vast sand and mud plains. These soft bottom habitats are preferred by many groundfish and shrimp species and, thus, have given rise to large commercial fisheries on these stocks. Hard bottom and reef habitats, on the other hand, are limited to approximately 1.6% of the total area of the Gulf, so that, while there are high demands by commercial and recreational fishermen for reef associated species, the availability of habitat for these stocks is limited. The thousands of oil and gas structures placed in the Gulf have added significant amounts of new hard substrate. The rigs-to-reefs concept was a common sense idea with support from environmental user groups and the petroleum industry for preserving a limited but valuable habitat type. As long as maximizing long-term benefits from the Gulf s resources for the greatest number of users remains the goal, then programs such as Rigs-to-Reefs will remain an important tool for fisheries and habitat managers in the Gulf.« less

EC 92: Implications for United States Trade Policy

DTIC Science & Technology

1990-04-09

38. 8. Veronique Maurus, "Le Maroc : le Nouveau Dragon aux Portes d’Europe," Le Monde (Paris), 03 November 1989, p. 9. 9. Carl Hamilton...Marx, Bernard. "What 1992 Has in Store for Europe." World Marxist Review, Vol. 32, January 1989, pp. 78-82. 33. Maurus, Veronique. "Le Maroc : le Nouveau

Personnel

ScienceCinema

None

2017-12-09

Le président du conseil M.Doran explique la décision que le conseil du Cern vient de prendre sur la 4.étape du régime complémentaire des pensions. Le président du comité des finances le Dr.Andersen ainsi que le Prof.Connor(?) prennent aussi la parole

78 FR 48653 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-09

... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold...

78 FR 61842 - Gulf of Mexico Fishery Management Council; Public Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-04

... Mexico Fishery Management Council; Public Meeting AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Meeting of the Gulf of Mexico Fishery Management Council. SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will hold...

Rita Roars Through a Warm Gulf September 21, 2005

NASA Image and Video Library

2005-09-21

This sea surface height map of the Gulf of Mexico, with the Florida peninsula on the right and the Texas-Mexico Gulf Coast on the left, is based on altimeter data from four satellites including NASA’s Topex/Poseidon and Jason.

GULF OF MEXICO AQUATIC MORTALITY NETWORK (GMNET)

EPA Science Inventory

Five U.S. states share the northern coast of the Gulf, and each has a program to monitor mortalities of aquatic organisms (fish, shellfish, birds). However, each state has different standards, procedures, and documentation of mortality events. The Gulf of Mexico Aquatic Mortality...

Meet EPA Ecologist Michael Murrell, Ph.D.

EPA Pesticide Factsheets

Michael Murrel, Ph.D., is a EPA research ecologist working on the Gulf of Mexico Hypoxia Project, helping develop models of the northern Gulf to quantify the links between freshwater flowing into the Gulf from the land, nutrients, and hypoxia—“dead zones”

A FRAMEWORK FOR AN INTEGRATED MONITORING PLAN FOR THE GULF OF MEXICO ECOSYSTEM

EPA Science Inventory

The Gulf of Mexico Program (GMP) Office in cooperation with its principal partners (Gulf State agencies, Federal agencies, private industry, etc.) and the Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program (EMAP) are developing an integrated c...

ASTER Views the Gulf of Mexico Oil Spill in Infrared May 1

NASA Image and Video Library

2010-05-04

NASA Terra spacecraft captured this image of the growing oil spill in the Gulf of Mexico on May 1, 2010. On April 20, 2010, an explosion destroyed the Deepwater Horizon oil platform operating offshore in the Gulf of Mexico.

77 FR 70149 - Fisheries of the Gulf of Mexico; Southeast Data, Assessment, and Review (SEDAR); Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-23

...: Notice of Cancellation of SEDAR 28 Gulf of Mexico Spanish mackerel and cobia assessment Webinar. SUMMARY: The SEDAR 28 assessment of the Gulf of Mexico Spanish mackerel and cobia fisheries will consist of a...

Central Saudi Arabia, Persian Gulf

NASA Technical Reports Server (NTRS)

1992-01-01

This panoramic view of Central Saudi Arabia and the Persian Gulf (28.0N, 47.0E) dramatically illustrates the stark beauty of the deserts. Riyadh, the capital city, lies in the foreground, with the Persian Gulf in the middle and Iran in the background. The coastal oil terminals of Al Hufuf and Ad Dammam are also visible. Black smudges of soot from the oil fires set during the Gulf War can be seen on the sands to the north and south of Kuwait City.

Al Jirab Island, United Arab Emirates, Persian Gulf

NASA Technical Reports Server (NTRS)

1991-01-01

Al Jirab Island, United Arab Emirates, in the Persian Gulf (24.0N, 54.0E) is an offshore oil tanker loading facility in the southern Persian Gulf. During the Gulf War in early 1991, drifting oil from the Kuwait Oil Fields, some 460 miles to the north, threatened the area. Seen as a dark blue floating mass as well as weathered patches of lighter brown, between the island and the mainland, the oil made its way into the channel, scaring the local beaches.

Northwest Persian Gulf Region

NASA Technical Reports Server (NTRS)

1983-01-01

An oblique view of the northwest Persian Gulf Region (29.5N, 48.0E) with Iraq and Iran at the north end of the Gulf separated by the Tigres-Euphrates river system. The hazy nature of the photo is because of a dust storm blowing across Iraq and Iran as well as smoke from oil well fires seen in the tiny but oil rich nation of Kuwait at upper right. Over the years, other out of control oil wells have spilled millions of barrels of oil into the Gulf.

Establishing a 1991 Veterans Research Network to Improve Characterization of Gulf War Illness and Provide a National Resource for Veterans and Investigators

DTIC Science & Technology

2015-09-01

studies have reported that 1991 Gulf War veterans have an excess rate of amyotrophic lateral sclerosis (ALS),11-13 compared to nondeployed veterans...Coffman CJ, et al. Amyotrophic Lateral Sclerosis among 1991 Gulf War Veterans: Evidence for a Time-Limited Outbreak. Neuroepidemiology.2008;31:28-32. 12...Horner RD, Kamins KG, Feussner JR, et al. Occurrence of amyotrophic lateral sclerosis among Gulf War veterans. Neurology.2003;61:742-749. 8 13. Haley

The Eocene Canopy of the Northwestern Gulf of Mexico explained by the Mechanism of Squeezed Diapirs - A Numerical Modeling Study

NASA Astrophysics Data System (ADS)

Gradmann, Sofie; Beaumont, Christopher

2010-05-01

Multiple salt canopies of variable size have developed in the Gulf of Mexico since the Palaeogene, and are now located at several different structural levels. Little is known about their emplacement and early evolution. In some cases, the underlying structures are shielded by salt from seismic imaging. In others, salt has been entirely evacuated from the canopies, and only a salt weld remains. Allochthonous salt structures can have a major influence on the structural evolution of a basin when they act as a detachment layer, and may also affect the sediment deposition patterns and the development of hydrocarbon systems. This study focuses on the evolution of a salt canopy located in the northwestern Gulf of Mexico. This canopy developed during the Eocene in the center of an up to 350 km wide Mid-Jurassic salt basin. In its later stages, it acted as a detachment surface for large-scale Oligo-Miocene gravity spreading. By localizing gravitational instabilities at the allochthonous level, the canopy likely postponed gravity-driven deformation above the distal part of the allochthonous salt basin until the late Oligocene, at which time the Perdido Fold Belt began to form at the distal end of the basin. We investigate the circumstances under which the Eocene canopy could have evolved via the mechanism of squeezed diapirs. During such a process, shortening of a region containing pre-existing diapirs will be absorbed by the salt (the weakest part of the system), which is then expelled upwards to the seafloor. We use 2D finite-element models to study the evolution of an analogous canopy. The models comprise a viscous salt layer overlain by a frictional-plastic passive margin sedimentary sequence from shelf to deep water, thereby incorporating the dynamical interaction of gravity spreading caused by shelf progradation. Model experiments include sediment compaction, flexural isostasy, loading by the overlying water column, and parametric calculations of the effects of pore-fluid pressures in the frictional-plastic sediments. The models integrate two phases of the basin evolution: Phase 1 in which diapirs develop during sediment aggradation, and Phase 2 in which sediment progradation leads to gravity spreading, shortening (squeezing) of the diapirs, expulsion of salt and the development of a canopy. The Phase 1 modeling presents a new mechanism for diapir initiation and evolution, which has remained a poorly understood aspect of salt tectonics. This mechanism is based on the idea that local bathymetric expressions (such as channel-levee systems or turbidite deposits) can be preserved by sedimentation patterns. These structures need to adjust isostatically relative to the salt layer. In an aggradational environment in which the bathymetric profile is maintained, this local balancing can create sufficient pressure differences to drive diapirism. These diapirs can form in a neutral stress regime and can fully develop before they get squeezed by shortening. The evolving model canopies show characteristics similar to the Eocene canopy of the northwestern Gulf of Mexico (such as its lateral extent, the structure of the underlying strata, and the postponing of deformation above the distal salt basin). They also share important characteristics with other canopies, for example, the Eocene canopy of the northern Gulf of Mexico.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pluquet, Alain

Cette théetudie les techniques d'identication de l'electron dans l'experience D0 au laboratoire Fermi pres de Chicago Le premier chapitre rappelle quelques unes des motivations physiques de l'experience physique des jets physique electrofaible physique du quark top Le detecteur D0 est decrit en details dans le second chapitre Le troisieme cha pitre etudie les algorithmes didentication de lelectron trigger reconstruction ltres et leurs performances Le quatrieme chapitre est consacre au detecteur a radiation de transition TRD construit par le Departement dAstrophysique Physique des Particules Physique Nucleaire et dInstrumentation Associee de Saclay il presente son principe sa calibration et ses performances Ennmore » le dernier chapitre decrit la methode mise au point pour lanalyse des donnees avec le TRD et illustre son emploi sur quelques exemples jets simulant des electrons recherche du quark top« less

Cytochrome P450-Dependent Metabolism of Oxylipins in Tomato. Cloning and Expression of Allene Oxide Synthase and Fatty Acid Hydroperoxide Lyase1

PubMed Central

Howe, Gregg A.; Lee, Gyu In; Itoh, Aya; Li, Lei; DeRocher, Amy E.

2000-01-01

Allene oxide synthase (AOS) and fatty acid hydroperoxide lyase (HPL) are plant-specific cytochrome P450s that commit fatty acid hydroperoxides to different branches of oxylipin metabolism. Here we report the cloning and characterization of AOS (LeAOS) and HPL (LeHPL) cDNAs from tomato (Lycopersicon esculentum). Functional expression of the cDNAs in Escherichia coli showed that LeAOS and LeHPL encode enzymes that metabolize 13- but not 9-hydroperoxide derivatives of C18 fatty acids. LeAOS was active against both 13S-hydroperoxy-9(Z),11(E),15(Z)-octadecatrienoic acid (13-HPOT) and 13S-hydroperoxy-9(Z),11(E)-octadecadienoic acid, whereas LeHPL showed a strong preference for 13-HPOT. These results suggest a role for LeAOS and LeHPL in the metabolism of 13-HPOT to jasmonic acid and hexenal/traumatin, respectively. LeAOS expression was detected in all organs of the plant. In contrast, LeHPL expression was predominant in leaves and flowers. Damage inflicted to leaves by chewing insect larvae led to an increase in the local and systemic expression of both genes, with LeAOS showing the strongest induction. Wound-induced expression of LeAOS also occurred in the def-1 mutant that is deficient in octadecanoid-based signaling of defensive proteinase inhibitor genes. These results demonstrate that tomato uses genetically distinct signaling pathways for the regulation of different classes of wound responsive genes. PMID:10859201

Use of a Florida Gulf Coast Barrier Island by Spring Trans-Gulf Migrants and the Projected Effects of Sea Level Rise on Habitat Availability.

PubMed

Lester, Lori A; Gutierrez Ramirez, Mariamar; Kneidel, Alan H; Heckscher, Christopher M

2016-01-01

Barrier islands on the north coast of the Gulf of Mexico are an internationally important coastal resource. Each spring hundreds of thousands of Nearctic-Neotropical songbirds crossing the Gulf of Mexico during spring migration use these islands because they provide the first landfall for individuals following a trans-Gulf migratory route. The effects of climate change, particularly sea level rise, may negatively impact habitat availability for migrants on barrier islands. Our objectives were (1) to confirm the use of St. George Island, Florida by trans-Gulf migrants and (2) to determine whether forested stopover habitat will be available for migrants on St. George Island following sea level rise. We used avian transect data, geographic information systems, remote sensing, and simulation modelling to investigate the potential effects of three different sea level rise scenarios (0.28 m, 0.82 m, and 2 m) on habitat availability for trans-Gulf migrants. We found considerable use of the island by spring trans-Gulf migrants. Migrants were most abundant in areas with low elevation, high canopy height, and high coverage of forests and scrub/shrub. A substantial percentage of forest (44%) will be lost by 2100 assuming moderate sea level rise (0.82 m). Thus, as sea level rise progresses, less forests will be available for migrants during stopover. Many migratory bird species' populations are declining, and degradation of barrier island stopover habitat may further increase the cost of migration for many individuals. To preserve this coastal resource, conservation and wise management of migratory stopover areas, especially near ecological barriers like the Gulf of Mexico, will be essential as sea levels rise.

Proposed Gulf of Mexico Intensive Study on Carbon Fluxes

NASA Astrophysics Data System (ADS)

Coble, P. G.; Robbins, L.; Lohrenz, S.; Cai, W.

2009-05-01

The Gulf of Mexico is an ideal site for the study of land-ocean carbon cycle coupling processes. A recent synthesis suggests that Gulf of Mexico air-sea CO2 flux may dominate the net flux of the entire North American margin because of the Gulf's large size and strong carbon signals. Northern Gulf waters appear to be a strong local CO2 sink due to high primary productivity stimulated by river input of anthropogenic nutrients from the North American continent. Nutrient discharge from the Mississippi River has been implicated in widespread hypoxia on the shelf. The surface drainage system of the Gulf covers more than 60% of the U.S. and more than 40% of Mexico; thus, large-scale changes in land-use and water-management practices in both countries, as well as changes in temperature and rainfall due to climate change, will profoundly affect Gulf carbon fluxes. Nevertheless, major sources of uncertainty in the North American carbon budget remain because of largely unsampled areas, undocumented key fluxes, such as air-sea exchange of carbon dioxide, associated carbon fluxes, and poorly characterized control mechanisms. An intensive study in which the Gulf is considered as a whole system, including watersheds, margins, open Gulf of Mexico, overlying atmosphere, and underlying sediments, will be discussed. The study is best addressed using a three-pronged approach that incorporates remote sensing observations, field observations and experiments, and physical and biogeochemical modeling. Societal issues related to carbon management and land-use/land-change must be an integral part of such a study. International cooperation with Mexico, Canada, and Cuba will be essential for the success of this study.

Gulf war illness—better, worse, or just the same? A cohort study

PubMed Central

Hotopf, Matthew; David, Anthony S; Hull, Lisa; Nikalaou, Vasilis; Unwin, Catherine; Wessely, Simon

2003-01-01

Objectives Firstly, to describe changes in the health of Gulf war veterans studied in a previous occupational cohort study and to compare outcome with comparable non-deployed military personnel. Secondly, to determine whether differences in prevalence between Gulf veterans and controls at follow up can be explained by greater persistence or greater incidence of disorders. Design Occupational cohort study in the form of a postal survey. Participants Military personnel who served in the 1991 Persian Gulf war; personnel who served on peacekeeping duties to Bosnia; military personnel who were deployed elsewhere (“Era” controls). All participants had responded to a previous survey. Setting United Kingdom. Main outcome measures Self reported fatigue measured on the Chalder fatigue scale; psychological distress measured on the general health questionnaire, physical functioning and health perception on the SF-36; and a count of physical symptoms. Results Gulf war veterans experienced a modest reduction in prevalence of fatigue (48.8% at stage 1, 43.4% at stage 2) and psychological distress (40.0% stage 1, 37.1% stage 2) but a slight worsening of physical functioning on the SF-36 (90.3 stage 1, 88.7 stage 2). Compared with the other cohorts Gulf veterans continued to experience poorer health on all outcomes, although physical functioning also declined in Bosnia veterans. Era controls showed both lower incidence of fatigue than Gulf veterans, and both comparison groups showed less persistence of fatigue compared with Gulf veterans. Conclusions Gulf war veterans remain a group with many symptoms of ill health. The excess of illness at follow up is explained by both higher incidence and greater persistence of symptoms. PMID:14670878

An original model of the northern Gulf of Mexico using Ecopath with Ecosim and its implications for the effects of fishing on ecosystem structure and maturity

NASA Astrophysics Data System (ADS)

Geers, T. M.; Pikitch, E. K.; Frisk, M. G.

2016-07-01

The Gulf of Mexico (GoM) is a valuable ecosystem both socially and economically, and fisheries contribute substantially to this value. Gulf menhaden, Brevoortia patronus, support the largest fishery in the Gulf (by weight) and provide forage for marine mammals, seabirds and commercially and recreationally important fish species. Understanding the complex interactions among multiple fisheries and myriad unfished species requires tools different from those used in traditional single-species management. One such tool, Ecopath with Ecosim (EwE) is increasingly being used to construct food web models of aquatic ecosystems and to evaluate fisheries management options within a broader, ecosystem context. Here, an EwE model was developed to examine the impact of Gulf fisheries on ecosystem structure and maturity. This model builds on previously published EwE models of the GoM, and is tailored to the range and habitat of Gulf menhaden. The model presented here consists of 47 functional groups, including 4 seabird groups, 1 marine mammal group, 3 elasmobranch groups, 26 bony fish groups, 9 invertebrate groups, 3 primary producer groups and 1 detritus group. A number of different management scenarios for Gulf fisheries were modeled and the results were evaluated in terms of impacts on ecosystem maturity and development. The results of the model simulations indicated that the northern Gulf of Mexico is in an immature state (sensuOdum, 1969). Management scenarios that increased fishing pressure over time consistently resulted in a decrease in the maturity indices. In particular, we found that Gulf menhaden, as a key forage fish in the ecosystem, plays a substantial role in the structure and functioning of the ecosystem.

Use of a Florida Gulf Coast Barrier Island by Spring Trans-Gulf Migrants and the Projected Effects of Sea Level Rise on Habitat Availability

PubMed Central

Lester, Lori A.; Gutierrez Ramirez, Mariamar; Kneidel, Alan H.; Heckscher, Christopher M.

2016-01-01

Barrier islands on the north coast of the Gulf of Mexico are an internationally important coastal resource. Each spring hundreds of thousands of Nearctic-Neotropical songbirds crossing the Gulf of Mexico during spring migration use these islands because they provide the first landfall for individuals following a trans-Gulf migratory route. The effects of climate change, particularly sea level rise, may negatively impact habitat availability for migrants on barrier islands. Our objectives were (1) to confirm the use of St. George Island, Florida by trans-Gulf migrants and (2) to determine whether forested stopover habitat will be available for migrants on St. George Island following sea level rise. We used avian transect data, geographic information systems, remote sensing, and simulation modelling to investigate the potential effects of three different sea level rise scenarios (0.28 m, 0.82 m, and 2 m) on habitat availability for trans-Gulf migrants. We found considerable use of the island by spring trans-Gulf migrants. Migrants were most abundant in areas with low elevation, high canopy height, and high coverage of forests and scrub/shrub. A substantial percentage of forest (44%) will be lost by 2100 assuming moderate sea level rise (0.82 m). Thus, as sea level rise progresses, less forests will be available for migrants during stopover. Many migratory bird species’ populations are declining, and degradation of barrier island stopover habitat may further increase the cost of migration for many individuals. To preserve this coastal resource, conservation and wise management of migratory stopover areas, especially near ecological barriers like the Gulf of Mexico, will be essential as sea levels rise. PMID:26934343

Reconstruction of Sea/Lake-Level Changes in an Active Strike-Slip Basin (Gulf of Cariaco, NE Venezuela)

NASA Astrophysics Data System (ADS)

van Daele, M.; Audemard, F.; Beck, C.; de Batist, M.; van Welden, A.; Moernaut, J.; 2006 Shipboard Party, G.

2008-05-01

In January 2006, 76 high-resolution reflection seismic profiles were acquired in the Gulf of Cariaco, Northeast Venezuela. In the upper 100 m of sedimentary infill, 17 unconformity-bounded sequences were identified and mapped throughout the basin. Up to now, no core or borehole information is available to provide age constraints on these units. The sedimentary infill is cut by several faults, Riedel faults in the central part and the El Pilar fault (one of the main faults of the South American-Caribbean plate boundary) in the southern part of the gulf. The connection of the Gulf of Cariaco with the adjacent Cariaco Basin occurs at a present-day water depth of ~ 55 m. This implies that the gulf was disconnected from the world ocean and functioned as a lake during a large part of the last glacial. The main rivers entering the gulf drain the coastal mountain ranges and tend to form pronounced deltas at their inlet. During times when the gulf was a lake, periods with a dry climate resulted in dramatic lake-level lowstands and even complete desiccation/evaporation. The present-day depths of delta offlap breaks and the presence of lowstand/evaporite deposits can thus be used to estimate sea/lake level at the time of their formation. Detailed analysis of these stratigraphic sea/lake-level indicators allowed reconstructing the sea/lake-level history for the period encompassed by the 17 identified sequences. This sea/lake-level reconstruction also needed to be corrected for tectonic subsidence, affecting different parts of the gulf with different intensity. The reconstructed sea/lake-level curve of the Gulf of Cariaco was compared with the eustatic sea-level curve and with results of previous paleoclimate studies in Venezuela. The striking coherence between the eustatic curve and the amplitudes and absolute heights of successive reconstructed lowstands and highstands compelled us to tune our record to the eustatic curve in order to achieve a rough age estimate for our units. According to this age model, our seismic stratigraphy reaches back to MIS6, and the average sedimentation rate in the central parts of the gulf since MIS5e is 0.92 mm/y. Our data show that reconstructed lake levels in the Gulf of Cariaco, which represent a proxy for climate in NE- Venezuela, are very strongly coupled to the global stadials and interstadials of the last glacial period. Also the Younger Dryas is recognised in the sedimentary record of the Gulf of Cariaco as lowstand deposit resulting from an (almost) complete desiccation. Our data reveal that the stratigraphy of the Gulf of Cariaco holds a very accurate, complete and promising record of eustasy and climate change, at least since the penultimate glacial maximum. The quality of this record and the vicinity to the iconic Cariaco Basin make the Gulf of Cariaco an ideal target for future ocean drilling (or long coring).

Gulf of Mexico physical-oceanography program final report: years 1 and 2. Volume 1. Executive summary. Technical report, 1983-1985

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

In 1982, Minerals Management Service (MMS) initiated a multi-year program under contract with Science Applications International Corp. (SAIC) to study the physical oceanography of the Gulf of Mexico as part of its outer continental shelf environmental-studies programs. This particular program, called the Gulf of Mexico Physical Oceanography Program (GOMPOP), has two primary goals: (1) develop a better understanding and description of conditions and processes governing Gulf circulation; and (2) establish a data base that could be used as initial and boundary conditions by a companion MMS-funded numerical circulation-modeling program. The report presents results from the first two of three yearsmore » of observations in the eastern Gulf.« less

Lupus erythematosus

DOE Office of Scientific and Technical Information (OSTI.GOV)

Tuffanelli, D.L.

1981-02-01

Lupus erythematosus (LE) is a multisystem disease. Genetic predisposition, altered immunity, hormones, drugs, viruses, and ultraviolet light all may play a role in etiology. A wide range of cutaneous lesions occur, and variants such as subacute cutaneous LE, complement-deficient LE, and neonatal LE have recently been emphasized. Management of the LE patient, including appropriate diagnostic studies and therapy relevant to the dermatologist, is discussed in the review.

Trends in Longevity in the Americas: Disparities in Life Expectancy in Women and Men, 1965-2010

PubMed Central

Hambleton, Ian R.; Howitt, Christina; Jeyaseelan, Selvi; Murphy, Madhuvanti M.; Hennis, Anselm J; Wilks, Rainford; Harris, E. Nigel; MacLeish, Marlene; Sullivan, Louis

2015-01-01

Objective We describe trends in life expectancy at birth (LE) and between-country LE disparities since 1965, in Latin America and the Caribbean. Methods & Findings LE trends since 1965 are described for three geographical sub-regions: the Caribbean, Central America, and South America. LE disparities are explored using a suite of absolute and relative disparity metrics, with measurement consensus providing confidence to observed differences. LE has increased throughout Latin America and the Caribbean. Compared to the Caribbean, LE has increased by an additional 6.6 years in Central America and 4.1 years in South America. Since 1965, average reductions in between-country LE disparities were 14% (absolute disparity) and 23% (relative disparity) in the Caribbean, 55% and 51% in Central America, 55% and 52% in South America. Conclusions LE in Latin America and the Caribbean is exceeding ‘minimum standard’ international targets, and is improving relative to the world region with the highest human longevity. The Caribbean, which had the highest LE and the lowest between-country LE disparities in Latin America and the Caribbean in 1965-70, had the lowest LE and the highest LE disparities by 2005-10. Caribbean Governments have championed a collaborative solution to the growing burden of non-communicable disease, with 15 territories signing on to the Declaration of Port of Spain, signalling regional commitment to a coordinated public-health response. The persistent LE inequity between Caribbean countries suggests that public health interventions should be tailored to individual countries to be most effective. Between- and within-country disparity monitoring for a range of health metrics should be a priority, first to guide country-level policy initiatives, then to contribute to the assessment of policy success. PMID:26091090

Myocardial Scar Imaging by Standard Single-Energy and Dual-Energy Late Enhancement Computed Tomography: Comparison to Pathology and Electroanatomical Map in an Experimental Chronic Infarct Porcine Model

PubMed Central

Truong, Quynh A.; Thai, Wai-ee; Wai, Bryan; Cordaro, Kevin; Cheng, Teresa; Beaudoin, Jonathan; Xiong, Guanglei; Cheung, Jim W.; Altman, Robert; Min, James K.; Singh, Jagmeet P.; Barrett, Conor D.; Danik, Stephan

2015-01-01

Background Myocardial scar is a substrate for ventricular tachycardia and sudden cardiac death. Late enhancement computed tomography (CT) imaging can detect scar, but it remains unclear whether newer late enhancement dual-energy (LE-DECT) acquisition has benefit over standard single-energy late enhancement (LE-CT). Objective We aim to compare late enhancement CT using newer LE-DECT acquisition and single-energy LE-CT acquisitions to pathology and electroanatomical map (EAM) in an experimental chronic myocardial infarction (MI) porcine study. Methods In 8 chronic MI pigs (59±5 kg), we performed dual-source CT, EAM, and pathology. For CT imaging, we performed 3 acquisitions at 10 minutes post-contrast: LE-CT 80 kV, LE-CT 100 kV, and LE-DECT with two post-processing software settings. Results Of the sequences, LE-CT 100 kV provided the best contrast-to-noise ratio (all p≤0.03) and correlation to pathology for scar (ρ=0.88). While LE-DECT overestimated scar (both p=0.02), LE-CT images did not (both p=0.08). On a segment basis (n=136), all CT sequences had high specificity (87–93%) and modest sensitivity (50–67%), with LE-CT 100 kV having the highest specificity of 93% for scar detection compared to pathology and agreement with EAM (κ 0.69). Conclusions Standard single-energy LE-CT, particularly 100kV, matched better to pathology and EAM than dual-energy LE-DECT for scar detection. Larger human trials as well as more technical-based studies that optimize varying different energies with newer hardware and software are warranted. PMID:25977115

Trends in Longevity in the Americas: Disparities in Life Expectancy in Women and Men, 1965-2010.

PubMed

Hambleton, Ian R; Howitt, Christina; Jeyaseelan, Selvi; Murphy, Madhuvanti M; Hennis, Anselm J; Wilks, Rainford; Harris, E Nigel; MacLeish, Marlene; Sullivan, Louis

2015-01-01

We describe trends in life expectancy at birth (LE) and between-country LE disparities since 1965, in Latin America and the Caribbean. LE trends since 1965 are described for three geographical sub-regions: the Caribbean, Central America, and South America. LE disparities are explored using a suite of absolute and relative disparity metrics, with measurement consensus providing confidence to observed differences. LE has increased throughout Latin America and the Caribbean. Compared to the Caribbean, LE has increased by an additional 6.6 years in Central America and 4.1 years in South America. Since 1965, average reductions in between-country LE disparities were 14% (absolute disparity) and 23% (relative disparity) in the Caribbean, 55% and 51% in Central America, 55% and 52% in South America. LE in Latin America and the Caribbean is exceeding 'minimum standard' international targets, and is improving relative to the world region with the highest human longevity. The Caribbean, which had the highest LE and the lowest between-country LE disparities in Latin America and the Caribbean in 1965-70, had the lowest LE and the highest LE disparities by 2005-10. Caribbean Governments have championed a collaborative solution to the growing burden of non-communicable disease, with 15 territories signing on to the Declaration of Port of Spain, signalling regional commitment to a coordinated public-health response. The persistent LE inequity between Caribbean countries suggests that public health interventions should be tailored to individual countries to be most effective. Between- and within-country disparity monitoring for a range of health metrics should be a priority, first to guide country-level policy initiatives, then to contribute to the assessment of policy success.

Development of an integrated BEM approach for hot fluid structure interaction: BEST-FSI: Boundary Element Solution Technique for Fluid Structure Interaction

NASA Technical Reports Server (NTRS)

Dargush, G. F.; Banerjee, P. K.; Shi, Y.

1992-01-01

As part of the continuing effort at NASA LeRC to improve both the durability and reliability of hot section Earth-to-orbit engine components, significant enhancements must be made in existing finite element and finite difference methods, and advanced techniques, such as the boundary element method (BEM), must be explored. The BEM was chosen as the basic analysis tool because the critical variables (temperature, flux, displacement, and traction) can be very precisely determined with a boundary-based discretization scheme. Additionally, model preparation is considerably simplified compared to the more familiar domain-based methods. Furthermore, the hyperbolic character of high speed flow is captured through the use of an analytical fundamental solution, eliminating the dependence of the solution on the discretization pattern. The price that must be paid in order to realize these advantages is that any BEM formulation requires a considerable amount of analytical work, which is typically absent in the other numerical methods. All of the research accomplishments of a multi-year program aimed toward the development of a boundary element formulation for the study of hot fluid-structure interaction in Earth-to-orbit engine hot section components are detailed. Most of the effort was directed toward the examination of fluid flow, since BEM's for fluids are at a much less developed state. However, significant strides were made, not only in the analysis of thermoviscous fluids, but also in the solution of the fluid-structure interaction problem.

Intranasal Insulin: A Novel Treatment for Gulf War Multisymptom Illness

DTIC Science & Technology

2014-10-01

Krengel M, Sullivan K. (2008). Neuropsychological Functioning in Gulf War veterans exposed to pesticides and pyridostigmine bromide . Fort Detrick, MD...Devine S, Heeren T, White RF. (2003). Cognitive functioning in treatment-seeking Gulf War veterans: pyridostigmine bromide use and PTSD. Journal of

Gulf Breeze, FL Lab--Office of Research and Development

EPA Pesticide Factsheets

The Gulf Breeze lab is recognized as a leader in advancing scientific knowledge concerning the effects of human-made stressors on the ecosystems of the Gulf Coast, and the impacts of those effects on the health and well-being of people and communities.

Why is Improving Water Quality in the Gulf of Mexico so Critical?

EPA Pesticide Factsheets

The EPA regional offices and the Gulf of Mexico Program work with Gulf States to continue to maximize the efficiency and utility of water quality monitoring efforts for local managers by coordinating and standardizing state and federal water quality data

Ecosystem Indicators and Tools in the Gulf of Maine

EPA Science Inventory

The Gulf of Maine Council on the Marine Environment is a U.S.-Canadian partnership of government and non-government organizations focused on the health, environmental quality and productivity of the Gulf of Maine. In 2006, the Ecosystem Indicator Partnership (ESIP) commenced acti...

75 FR 16577 - Gulf War Veterans' Illnesses Task Force

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-01

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of Veterans Affairs (VA). ACTION: Notice with request for comments. SUMMARY: The Secretary Department of Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to...

77 FR 18307 - Gulf War Veterans' Illnesses Task Force Report

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-27

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force Report AGENCY: Department of Veterans Affairs. ACTION: Notice. SUMMARY: The Secretary Department of Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to conduct a comprehensive...

78 FR 28292 - Gulf War Veterans' Illnesses Task Force

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-14

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of Veterans Affairs (VA). ACTION: Notice with request for comments. SUMMARY: The Secretary, Department of Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to...

76 FR 65321 - Gulf War Veterans' Illnesses Task Force

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-20

... DEPARTMENT OF VETERANS AFFAIRS Gulf War Veterans' Illnesses Task Force AGENCY: Department of Veterans Affairs (VA). ACTION: Notice with request for comments. SUMMARY: The Secretary, Department of Veterans Affairs (VA) established the Gulf War Veterans' Illnesses Task Force (GWVI-TF) in August 2009 to...

75 FR 29724 - Gulf of Mexico Fishery Management Council; Public Meetings

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-27

... Mexico Fishery Management Council; Public Meetings AGENCY: National Marine Fisheries Service (NMFS.... SUMMARY: The Gulf of Mexico Fishery Management Council (Council) will convene public meetings. DATES: The..., 1600 E. Beach Blvd, Gulfport, MS 39501. Council address: Gulf of Mexico Fishery Management Council...

Environmental impacts of tourism in the Gulf and the Red Sea.

PubMed

Gladstone, William; Curley, Belinda; Shokri, Mohammad Reza

2013-07-30

The Gulf and Red Sea possess diverse coastal and marine environments that support rapidly expanding mass tourism. Despite the associated environmental risks, there is no analysis of the tourism-related literature or recent analysis of impacts. Environmental issues reported in 101 publications (25 from the Gulf, 76 from the Red Sea) include 61 purported impacts (27 from the Gulf, 45 from the Red Sea). Gulf literature includes quantitative studies (68% publications) and reviews (32%), and addresses mostly land reclamation and artificial habitats. Most Gulf studies come from Iran and UAE (64%). Red Sea literature includes quantitative studies (81%) and reviews (11%), with most studies occurring in Egypt (70%). The most published topics relate to coral breakage and its management. A full account of tourism's environmental impacts is constrained by limited tourism data, confounding of impacts with other coastal developments, lack of baseline information, shifting baselines, and fragmentation of research across disciplines. Copyright © 2012 Elsevier Ltd. All rights reserved.

Molluscan evidence for early middle Miocene marine glaciation in southern Alaska

USGS Publications Warehouse

Marincovich, L.

1990-01-01

Profound cooling of Miocene marine climates in southern Alaska culminated in early middle Miocene coastal marine glaciation in the northeastern Gulf of Alaska. This climatic change resulted from interaction of the Yakutat terrane with southern Alaska beginning in late Oligocene time. The ensuing extreme uplift of the coastal Chugach and St. Elias Mountains resulted in progressive regional cooling that culminated in coastal marine glaciation beginning in the early middle Miocene (15-16 Ma) and continuing to the present. The counterclockwise flow of surface water from the frigid northeastern Gulf of Alaska resulted in a cold-temperate shallow-marine environment in the western Gulf of Alaska, as it does today. Ironically, dating of Gulf of Alaska marine glaciation as early middle Miocene is strongly reinforced by the presence of a few tropical and subtropical mollusks in western Gulf of Alaska faunas. Shallow-marine waters throughout the Gulf of Alaska were cold-temperate to cold in the early middle Miocene, when the world ocean was undergoing peak Neogene warming. -Author

Gulf War syndrome: an emerging threat or a piece of history?

PubMed Central

Greenberg, N; Wessely, S

2008-01-01

‘Gulf War syndrome’ is a phrase coined after the 1991 Gulf War to group together disparate, unexplained health symptoms in Gulf veterans. This paper examines the many hypotheses that have been put forward about the origins of the concept and gives an overview of the studies that have attempted to explain the lasting health effects associated with Gulf service. Our review finds that although in the UK there has not yet been evidence of a new Gulf War syndrome as a result of the current conflicts in Iraq and Afghanistan, there is a rise in post-conflict psychiatric disorders now being reported in the USA. We postulate that after conflicts military personnel will always face some form of post-conflict syndrome and the nature of the threats experienced is likely to dictate the form the syndrome might take. We also postulate that media reporting is likely to have influenced and to continue unhelpfully to influence the health of service personnel. PMID:22460210