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Sample records for preoperatoire pour cancer

  1. Intrinsically disordered proteins and prostate cancer: pouring new wine in an old bottle

    PubMed Central

    Kulkarni, Prakash

    2016-01-01

    An inconvenient truth in urology is that despite decades of intense research, prostate cancer (PCa) has remained one of the most prevalent cancers and leading cause of cancer-related deaths in men, particularly in the industrialized world.1 It is rather sobering to acknowledge that even with early diagnosis and treatment, the incidence and death due to the disease are almost paradoxically projected to increase in the coming decades.2 PMID:27427556

  2. Les déterminants du statut “perdu de vue” chez les patients pris en charge pour cancer au Maroc: situation avant le Plan Cancer

    PubMed Central

    Najdi, Adil; Berraho, Mohamed; Bendahhou, Karima; Obtel, Majdouline; Zidouh, Ahmed; Errihani, Hassan; Nejjari, Chakib

    2014-01-01

    Introduction Le cancer au Maroc représente un problème majeur de santé publique, sa prise en charge doit être globale, active et complète pour tous les patients. L'objectif de ce travail était d'estimer la fréquence des perdus de vue « PDV » en oncologie au Maroc durant la première année de suivi et de déterminer les facteurs associés à ce problème. Méthodes Par une étude rétrospective portant sur 2854 dossiers de malades hospitalisés dans les trois principaux centres d'oncologie au Maroc depuis janvier 2003 jusqu’à juin 2007 et concernant les cinq principales localisations de cancer au Maroc, nous avons cherché la date des dernières nouvelles des patients ayant un recul de 18 mois minimum afin de déterminer le statut de ces malades après un an de suivi. Résultats La moyenne d’âge était de 52±14 ans, une proportion féminine de 63%, les sujets actifs constituaient 28%, les mariés 71%, les analphabètes 51%, 70% des patients habitaient en milieu urbain et seulement 11% des malades disposaient d'une couverture sociale. La localisation cancéreuse la plus fréquente était le poumon (23,8%) suivie du colon-rectum (23,5%) puis le col (21,9%), le sein (20,4%) et les lymphomes (10,4%). Le taux des «PDV» à un an de suivi était de 48%, ce statut était significativement lié au sexe, à l’âge, au NSE et au statut matrimonial. Sur le plan médical, le statut «PDV» était lié à la localisation du cancer, au stade de diagnostic et au type de traitement reçu. Conclusion Notre étude a mis en évidence la grande ampleur du problème des PDV en cancérologie au Maroc ainsi que ces déterminants. Ces résultats incitent tous les acteurs dans le domaine de la cancérologie à collaborer ensemble pour prendre les mesures qui s'imposent pour y pallier PMID:25400850

  3. Early oesophageal cancer: results of a European multicentre survey. Group Européen pour l'Etude des Maladies de l'Oesophage.

    PubMed

    Bonavina, L

    1995-01-01

    Early oesophageal cancer has been extensively studied in Far-Eastern countries, where its prevalence is high. A multicentre survey was conducted within the Groupe Européen pour l'Etude des Maladies de l'Oesophage to analyse results of surgical treatment in patients with disease staged as pTis-T1 N0 M0 according to the tumour node metastasis classification. Of 9743 patients with squamous cell oesophageal carcinoma observed since 1980, 4663 underwent resection; 253 (5.4 per cent) of these fulfilled the criteria for inclusion in the study. The overall mortality rate was 9.1 per cent (23 patients), and was higher after transthoracic than transhiatal oesophagectomy (10.7 versus 6 per cent, P not significant). Pathological examination showed an intraepithelial tumour in 46 patients (18.2 per cent), intramucosal carcinoma in 64 (25.3 per cent) and a submucosal lesion in 143 (56.5 per cent). The overall 5-year survival rate for patients with intraepithelial, intramucosal and submucosal tumours was 92.8, 72.8 and 44.3 per cent respectively. The 5-year survival rate was higher after transthoracic than transhiatal oesophagectomy (66 versus 52 per cent). No survival advantage was observed after either operation in patients with mucosal tumours. Of 21 patients with recurrent disease, 20 had a submucosal lesion. The 5-year survival rate in patients with submucosal tumour was higher after transthoracic than transhiatal oesophagectomy (54.2 versus 25.5 per cent).

  4. Radionécrose cérébrale chez des patients irradiés pour cancers du nasopharynx: à propos de 3 cas

    PubMed Central

    El Mazghi, Abderrahman; Lalya, Issam; Loukili, Kaoutar; El Kacemi, Hanan; Kebdani, Taieb; Hassouni, Khalid

    2014-01-01

    La radionécrose cérébrale est une complication tardive, iatrogène, relativement rare de la radiothérapie qui survient après plus de six mois suivant le début du traitement. Elle pourrait s'expliquer par la conjonction de lésions vasculaires, gliales et d'ordre immunologiques. Elle peut mettre en jeu le pronostic fonctionnel et vital du malade. La prévention de cette affection redoutable est fondamentale vu l'absence de traitement potentiellement efficace. Nous rapportons 03 nouveaux cas, chez des patients traités par chimiothérapie d'induction puis radio- chimiothérapie concomitante pour des cancers localement avancés du nasopharynx. Le diagnostic a été orienté par l'IRM spectroscopique et l’évolution était favorable sous corticothérapie dans les 03 cas. PMID:25722784

  5. Des ballons pour demain

    NASA Astrophysics Data System (ADS)

    Régipa, R.

    A partir d'une théorie sur la détermination des formes et des contraintes globales d'un ballon de révolution, ou s'en rapprochant, une nouvelle famille de ballons a été définie. Les ballons actuels, dits de ``forme naturelle'', sont calculés en général pour une tension circonférencielle nulle. Ainsi, pour une mission donnée, la tension longitudinale et la forme de l'enveloppe sont strictement imposées. Les ballons de la nouvelle génération sont globalement cylindriques et leurs pôles sont réunis par un câble axial, chargé de transmettre une partie des efforts depuis le crochet (pôle inférieur), directement au pôle supérieur. De plus, la zone latérale cylindrique est soumise à un faible champ de tensions circonférencielles. Ainsi, deux paramètres permettent de faire évoluer la distribution des tensions et la forme de l'enveloppe: - la tension du câble de liaison entre pôles (ou la longueur de ce câble) - la tension circonférencielle moyenne désirée (ou le rayon du ballon). On peut donc calculer et réaliser: - soit des ballons de forme adaptée, comme les ballons à fond plat pour le bon fonctionnement des montgolfières infrarouge (projet MIR); - soit des ballons optimisés pour une bonne répartition des contraintes et une meilleure utilisation des matériaux d'enveloppe, pour l'ensemble des programmes stratosphériques. Il s'ensuit une économie sensible des coûts de fabrication, une fiabilité accrue du fonctionnement de ces ballons et une rendement opérationnel bien supérieur, permettant entre autres, d'envisager des vols à très haute altitude en matériaux très légers.

  6. VIEW POURING PLATFORM SHOWING MOLD POURING JACKETS AND WEIGHTS AND, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW POURING PLATFORM SHOWING MOLD POURING JACKETS AND WEIGHTS AND, IN THE FOREGROUND, SAND RETURN FROM THE SHAKEOUT ACTUATING A SIMPLE LEVER SYSTEM THAT ADDED FRESH WATER TO THE SAND IN PREPARATION FOR ITS REUSE. - Southern Ductile Casting Company, Centerville Foundry, 101 Airport Road, Centreville, Bibb County, AL

  7. When It Rains, It Pours

    ERIC Educational Resources Information Center

    Mills, Linda

    2012-01-01

    "It's raining, it's pouring, the old man is snoring!" "The itsy, bitsy spider crawled up the waterspout, down came the rain and washed the spider out. Out came the sun and dried up all the rain, and the itsy, bitsy spider went up the spout again." What do children's nursery rhymes have to do with the school library? The author begins by telling a…

  8. Low pour crude oil compositions

    SciTech Connect

    Motz, K.L.; Latham, R.A.; Statz, R.J.

    1990-05-22

    This patent describes and improvement in the process of transporting waxy crude oils through a pipeline. It comprises: incorporating into the crude oil an effective pour point depressant amount of an additive comprising a polymer selected from the group consisting of copolymers of ethylene and acrylonitrile, and terpolymers of ethylene, acrylonitrile and a third monomer selected from the group consisting of vinyl acetate, carbon monoxide, alkyl acrylates, alkyl methacrylates, alkyl vinyl ethers, vinyl chloride, vinyl fluoride, acrylic acid, and methacrylic acid, wherein the amount of third monomer in the terpolymer ranges from about 0.1 to about 10.0 percent by weight.

  9. Pipeline transportation of high pour Handil crude

    SciTech Connect

    Irani, C.A.; Zajac, J.

    1981-01-01

    Problems related with the pipeline transportation of high pour Handil (Indonesia) crude between Huntington Beach and Santa Fe Springs, California are discussed. The results of laboratory and field studies of chemical additives for pour depression are presented. A rotational viscometer was used to establish the relevant rheological parameters of treated and untreated crude. Chemical treatment at the 200 ppm level was found to be economically more attractive than the available heating step. A limited discussion is also presented of the use of analytical methods for improved characterization of the wax-wax and wax-additive interactions. 11 refs.

  10. INTERIOR VIEW, LOOKING WEST, WITH CRANE OPERATOR, TED SEALS, POURING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    INTERIOR VIEW, LOOKING WEST, WITH CRANE OPERATOR, TED SEALS, POURING MOLTEN METAL INTO A 1,300 TON ELECTRIC HOLDING FURNACE OR MIXER. AN ELECTRONIC SCALE RECORDED THAT 50.5 TONS OF METAL WERE POURED INTO THE FURNACE DURING THIS POUR. - American Cast Iron Pipe Company, Mixer Building, 1501 Thirty-first Avenue North, Birmingham, Jefferson County, AL

  11. A Statistical Treatment of Bioassay Pour Fractions

    NASA Technical Reports Server (NTRS)

    Barengoltz, Jack; Hughes, David W.

    2014-01-01

    The binomial probability distribution is used to treat the statistics of a microbiological sample that is split into two parts, with only one part evaluated for spore count. One wishes to estimate the total number of spores in the sample based on the counts obtained from the part that is evaluated (pour fraction). Formally, the binomial distribution is recharacterized as a function of the observed counts (successes), with the total number (trials) an unknown. The pour fraction is the probability of success per spore (trial). This distribution must be renormalized in terms of the total number. Finally, the new renormalized distribution is integrated and mathematically inverted to yield the maximum estimate of the total number as a function of a desired level of confidence ( P(pour fraction. The extension to recovery efficiency corrections is also presented. Now the product of recovery efficiency and pour fraction may be small enough that the likely value may be much larger than the usual calculation: the number of spores divided by that product. The use of this analysis would not be limited to microbiological data.

  12. First come, first served. Does pouring sequence matter for consumption?

    PubMed

    Stroebele-Benschop, Nanette; Dieze, Anastasia; Hilzendegen, Carolin

    2016-10-01

    Various environmental factors associated with eating and drinking affect people's food choice and food intake. Lately, the role of tableware has been studied in more detail. The aim of this study was to determine whether pouring sequence of food components affects portion size. Study 1 invited participants to pour a beverage containing both apple juice and sparkling water. Pouring apple juice first increased juice by almost 25% compared to pouring water first. Pouring water first increased water by almost 19% compared to pouring juice first confirming our hypothesis that pouring sequence affects the ratio poured. Study 2 asked participants to prepare themselves a snack containing cereals with milk. Within-subject comparisons revealed that pouring milk before cereals significantly increased both milk and cereal amounts resulting in larger overall portion size compared to pouring cereals before adding milk. Habitual tendencies for preparing foods causing a perception bias or a perception bias itself could be possible explanations for the divergent study findings. These findings show for the first time the influence of pouring and preparation sequence on portion size. PMID:27417334

  13. Plutonium Immobilization Program cold pour tests

    SciTech Connect

    Hovis, G.L.; Stokes, M.W.; Smith, M.E.; Wong, J.W.

    1999-07-01

    The Plutonium Immobilization Program (PIP) is a joint venture between the Savannah River Site, Lawrence Livermore National Laboratory, Argonne National Laboratory, and Pacific Northwest National Laboratory to carry out the disposition of excess weapons-grade plutonium. This program uses the can-in-canister (CIC) approach. CIC involves encapsulating plutonium in ceramic forms (or pucks), placing the pucks in sealed stainless steel cans, placing the cans in long cylindrical magazines, latching the magazines to racks inside Defense Waste Processing Facility (DWPF) canisters, and filling the DWPF canisters with high-level waste glass. This process puts the plutonium in a stable form and makes it attractive for reuse. At present, the DWPF pours glass into empty canisters. In the CIC approach, the addition of a stainless steel rack, magazines, cans, and ceramic pucks to the canisters introduces a new set of design and operational challenges: All of the hardware installed in the canisters must maintain structural integrity at elevated (molten-glass) temperatures. This suggests that a robust design is needed. However, the amount of material added to the DWPF canister must be minimized to prevent premature glass cooling and excessive voiding caused by a large internal thermal mass. High metal temperatures, minimizing thermal mass, and glass flow paths are examples of the types of technical considerations of the equipment design process. To determine the effectiveness of the design in terms of structural integrity and glass-flow characteristics, full-scale testing will be conducted. A cold (nonradioactive) pour test program is planned to assist in the development and verification of a baseline design for the immobilization canister to be used in the PIP process. The baseline design resulting from the cold pour test program and CIC equipment development program will provide input to Title 1 design for second-stage immobilization. The cold pour tests will be conducted in two

  14. Cancer

    MedlinePlus

    ... your life Being exposed to chemicals that can cause cancer Being at risk for skin cancer Depending on ... than nonsmokers. Other forms of tobacco can also cause cancer, such as cigars, chewing tobacco and snuff. If ...

  15. FRONT VIEW OF POURING FROM #61 HOLDING FURNACE AT #02 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    FRONT VIEW OF POURING FROM #61 HOLDING FURNACE AT #02 STATION INTO THREE VERTICAL MOLDS SUBMERGED IN A WATER-FILLED TANK BELOW THE CASTING FLOOR. THE CASTING CREW'S JOBS DURING THIS PHASE OF THE OPERATION INCLUDE REGULATING THE POURING RATE AND MONITORING THE VALVE RODS THAT CONTROL THE WATER SPRAYS ON THE MOLDS. DIFFERENT ALLOYS REQUIRE SPECIFIC POURING SPEEDS AND WATER PRESSURES. - American Brass Foundry, 70 Sayre Street, Buffalo, Erie County, NY

  16. Cancer

    MedlinePlus

    Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms ... be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors ...

  17. A statistical treatment of bioassay pour fractions

    NASA Astrophysics Data System (ADS)

    Barengoltz, Jack; Hughes, David

    A bioassay is a method for estimating the number of bacterial spores on a spacecraft surface for the purpose of demonstrating compliance with planetary protection (PP) requirements (Ref. 1). The details of the process may be seen in the appropriate PP document (e.g., for NASA, Ref. 2). In general, the surface is mechanically sampled with a damp sterile swab or wipe. The completion of the process is colony formation in a growth medium in a plate (Petri dish); the colonies are counted. Consider a set of samples from randomly selected, known areas of one spacecraft surface, for simplicity. One may calculate the mean and standard deviation of the bioburden density, which is the ratio of counts to area sampled. The standard deviation represents an estimate of the variation from place to place of the true bioburden density commingled with the precision of the individual sample counts. The accuracy of individual sample results depends on the equipment used, the collection method, and the culturing method. One aspect that greatly influences the result is the pour fraction, which is the quantity of fluid added to the plates divided by the total fluid used in extracting spores from the sampling equipment. In an analysis of a single sample’s counts due to the pour fraction, one seeks to answer the question: What is the probability that if a certain number of spores are counted with a known pour fraction, that there are an additional number of spores in the part of the rinse not poured. This is given for specific values by the binomial distribution density, where detection (of culturable spores) is success and the probability of success is the pour fraction. A special summation over the binomial distribution, equivalent to adding for all possible values of the true total number of spores, is performed. This distribution when normalized will almost yield the desired quantity. It is the probability that the additional number of spores does not exceed a certain value. Of course

  18. A statistical treatment of bioassay pour fractions

    NASA Astrophysics Data System (ADS)

    Barengoltz, Jack; Hughes, David

    A bioassay is a method for estimating the number of bacterial spores on a spacecraft surface for the purpose of demonstrating compliance with planetary protection (PP) requirements (Ref. 1). The details of the process may be seen in the appropriate PP document (e.g., for NASA, Ref. 2). In general, the surface is mechanically sampled with a damp sterile swab or wipe. The completion of the process is colony formation in a growth medium in a plate (Petri dish); the colonies are counted. Consider a set of samples from randomly selected, known areas of one spacecraft surface, for simplicity. One may calculate the mean and standard deviation of the bioburden density, which is the ratio of counts to area sampled. The standard deviation represents an estimate of the variation from place to place of the true bioburden density commingled with the precision of the individual sample counts. The accuracy of individual sample results depends on the equipment used, the collection method, and the culturing method. One aspect that greatly influences the result is the pour fraction, which is the quantity of fluid added to the plates divided by the total fluid used in extracting spores from the sampling equipment. In an analysis of a single sample’s counts due to the pour fraction, one seeks to answer the question: What is the probability that if a certain number of spores are counted with a known pour fraction, that there are an additional number of spores in the part of the rinse not poured. This is given for specific values by the binomial distribution density, where detection (of culturable spores) is success and the probability of success is the pour fraction. A special summation over the binomial distribution, equivalent to adding for all possible values of the true total number of spores, is performed. This distribution when normalized will almost yield the desired quantity. It is the probability that the additional number of spores does not exceed a certain value. Of course

  19. APPARATUS FOR MELTING AND POURING METAL

    DOEpatents

    Harris, F.A.

    1958-02-25

    This patent relates to a crucible for melting and pouring a metal under controlled atmospheric conditions. The crucible has a frangible plug in the bottom and a retaining device to prevent the entrance of the broken portions of the plug into the mold without interfering with the flow of the melt. After the charge has been melted, a knockout rod is lowered through the charge and forced against the frangible plug sufficiently to break off the closure disk along a previously scored line. The disk drops onto a retaining grid large enough to permit the flow of metal around the disk and into the mold below. Thts arrangement elimnates the entry of broken portions of the plug into the mold, thereby elimnating a common cause of imperfect castings.

  20. [Cancer].

    PubMed

    de la Peña-López, Roberto; Remolina-Bonilla, Yuly Andrea

    2016-09-01

    Cancer is a group of diseases which represents a significant public health problem in Mexico and worldwide. In Mexico neoplasms are the second leading cause of death. An increased morbidity and mortality are expected in the next decades. Several preventable risk factors for cancer development have been identified, the most relevant including tobacco use, which accounts for 30% of the cancer cases; and obesity, associated to another 30%. These factors, in turn, are related to sedentarism, alcohol abuse and imbalanced diets. Some agents are well knokn to cause cancer such as ionizing radiation, viruses such as the papilloma virus (HPV) and hepatitis virus (B and C), and more recently environmental pollution exposure and red meat consumption have been pointed out as carcinogens by the International Agency for Research in Cancer (IARC). The scientific evidence currently available is insufficient to consider milk either as a risk factor or protective factor against different types of cancer. PMID:27603890

  1. POURING IRON FROM BULL LADLE INTO MOBILE LADLES USED TO ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    POURING IRON FROM BULL LADLE INTO MOBILE LADLES USED TO FILL MOLDS ON CONVEYOR LINES AFTER FERRO-SILICON IS ADDED TO ENHANCE DUCTILITY AND FLUIDITY. - Southern Ductile Casting Company, Casting, 2217 Carolina Avenue, Bessemer, Jefferson County, AL

  2. 41. Casting floor, "B" furnace, pour in progress; mudgun is ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    41. Casting floor, "B" furnace, pour in progress; mudgun is to right of furnace; photo taken from furnace operator's booth. Looking south/southwest - Rouge Steel Company, 3001 Miller Road, Dearborn, MI

  3. 6. VIEW LOOKING WEST FROM THE POURING AISLE OF THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. VIEW LOOKING WEST FROM THE POURING AISLE OF THE ELECTRIC FURNACE BUILDING AT ELECTRIC FURNACE X-3. - U.S. Steel Duquesne Works, Electric Furnace Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA

  4. 45. EXPOSEDAGGREGATE CONCRETE AT NICHE, NORTH BOUNDARY, SEVERAL TEXTURES POURED ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    45. EXPOSED-AGGREGATE CONCRETE AT NICHE, NORTH BOUNDARY, SEVERAL TEXTURES POURED AT ONE TIME, October 1987 - Meridian Hill Park, Bounded by Fifteenth, Sixteenth, Euclid & W Streets, Northwest, Washington, District of Columbia, DC

  5. POURING IRON FROM ELECTRIC FURNACE INTO BULL LADLE AFTER MAGNESIUM ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    POURING IRON FROM ELECTRIC FURNACE INTO BULL LADLE AFTER MAGNESIUM HAD BEEN ADDED TO GENERATE DUCTILE IRON WHEN IT COOLS IN THE MOLD. - Southern Ductile Casting Company, Casting, 2217 Carolina Avenue, Bessemer, Jefferson County, AL

  6. 42. Casting floor, "B" furnace, pour in progress; mudgun is ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    42. Casting floor, "B" furnace, pour in progress; mudgun is to right of furnace; operator takes temperature of iron in trough during pout. Looking south - Rouge Steel Company, 3001 Miller Road, Dearborn, MI

  7. Interior building details of Building A, dungeon northwest cell: poured ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior building details of Building A, dungeon northwest cell: poured concrete floors, plastered finished walls, exposed brick wall, vaulted veiling; westerly view - San Quentin State Prison, Building 22, Point San Quentin, San Quentin, Marin County, CA

  8. Interior building details of Building A, dungeon central hallway: poured ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior building details of Building A, dungeon central hallway: poured concrete floors, plaster-finished brick walls, vaulted ceiling, arch entryway to cells; southerly view - San Quentin State Prison, Building 22, Point San Quentin, San Quentin, Marin County, CA

  9. Transfert radiatif numerique pour un code SPH

    NASA Astrophysics Data System (ADS)

    Viau, Joseph Edmour Serge

    2001-03-01

    Le besoin de reproduire la formation d'etoiles par simulations numeriques s'est fait de plus en plus present au cours des 30 dernieres annees. Depuis Larson (1968), les codes de simulations n'ont eu de cesse de s'ameliorer. D'ailleurs, en 1977, Lucy introduit une autre methode de calcul venant concurrencer la methode par grille. Cette nouvelle facon de calculer utilise en effet des points a defaut d'utiliser des grilles, ce qui est une bien meilleure adaptation aux calculs d'un effondrement gravitationnel. Il restait cependant le probleme d'ajouter le transfert radiatif a un tel code. Malgre la proposition de Brookshaw (1984), qui nous montre une formule permettant d'ajouter le transfert radiatif sous la forme SPH tout en evitant la double sommation genante qu'elle implique, aucun code SPH a ce jour ne contient un transfert radiatif satisfaisant. Cette these presente pour la premiere fois un code SPH muni d'un transfert radiatif adequat. Toutes les difficultes ont pu etre surmontees afin d'obtenir finalement le transfert radiatif "vrai" qui survient dans l'effondrement d'un nuage moleculaire. Pour verifier l'integrite de nos resultats, une comparaison avec le nonisothermal test case de Boss & Myhill (1993) nous revele un resultat fort satisfaisant. En plus de suivre fidelement la courbe de l'evolution de la temperature centrale en fonction de la densite centrale, notre code est exempt de toutes les anomalies rencontrees par les codes par grille. Le test du cas de la conduction thermique nous a lui aussi servit a verifier la fiabilite de notre code. La aussi les resultats sont fort satisfaisants. Faisant suite a ces resultats, le code fut utilise dans deux situations reelles de recherche, ce qui nous a permis de demontrer les nombreuses possibilites que nous donne notre nouveau code. Dans un premier temps, nous avons tudie le comportement de la temperature dans un disque d'accretion durant son evolution. Ensuite nous avons refait en partie une experience de Bonnell

  10. Decodeurs rapides pour codes topologiques quantiques

    NASA Astrophysics Data System (ADS)

    Duclos-Cianci, Guillaume

    L'encodage topologique de l'information quantique a attire beaucoup d'attention, car c'est un modele qui semble propice a resister aux erreurs locales. Tout d'abord, le modele du calcul topologique est base sur la statistique anyonique non-Abelienne universelle et sur son controle. Des anyons indesirables peuvent apparaitre soudainement, en raison de fluctuations thermiques ou de processus virtuels. La presence de ces anyons peut corrompre l'information encodee, il est necessaire de les eliminer: la correction consiste a fusionner les defauts tout en preservant la topologie du systeme. Ensuite, dans le cas des codes topologiques, on doit aussi proteger l'information encodee dans la topologie. En effet, dans ces systemes, on n'a acces qu'a une fraction de l'information decrivant l'erreur. Elle est recueillie par des mesures et peut etre interpretee en termes de particules. Ces defauts peuplent le code et doivent etre annihiles adequatement dans le but de preserver l'information encodee. Dans ce memoire, nous proposons un algorithme efficace, appele decodeur, pouvant etre utilise dans les deux contextes decrits ci-haut. Pour y parvenir, cet algorithme s'inspire de methodes de renormalisation et de propagation de croyance. Il est exponentiellement plus rapide que les methodes deja existantes, etant de complexite O (ℓ2 log ℓ) en serie et, si on parallelise, O (log ℓ) en temps, contre O (ℓ6) pour les autres decodeurs. Le temps etant le facteur limitant dans le probleme du decodage, cette caracteristique est primordiale. De plus, il tolere une plus grande amplitude de bruit que les methodes existantes; il possede un seuil de ˜ 16.5% sur le canal depolarisant surpassant le seuil deja etabli de ˜ 15.5%. Finalement, il est plus versatile. En effet, en etant limite au code de Kitaev, on ne savait pas decoder les codes topologiques de maniere generale (e.g. codes de couleur). Or, le decodeur propose dans ce memoire peut traiter la grande classe des codes

  11. Cancer

    MedlinePlus

    ... weight Minimizing your exposure to radiation and toxic chemicals Not smoking or chewing tobacco Reducing sun exposure, especially if you burn easily Cancer screenings, such as mammography and breast ...

  12. Algorithmes et architectures pour ordinateurs quantiques supraconducteurs

    NASA Astrophysics Data System (ADS)

    Blais, Alexandre

    Depuis sa formulation, la theorie de l'information a ete basee, implicitement, sur les lois de la physique classique. Une telle formulation est toutefois incomplete puisqu'elle ne tient pas compte de la realite quantique. Au cours des vingt dernieres annees, l'expansion de la theorie de l'information englobant les effets purement quantiques a connu un interet grandissant. La realisation d'un systeme de traitement de l'information quantique, un ordinateur quantique, presente toutefois de nombreux defis. Dans ce document, on s'interesse a differents aspects concernant ces defis. On commence par presenter des concepts algorithmiques comme l'optimisation de calculs quantiques et le calcul quantique geometrique. Par la suite, on s'interesse au design et a differents aspects de l'utilisation de qubits bases sur les jonctions Josephson. En particulier, un nouveau design de qubit supraconducteur est suggere. On presente aussi une approche originale pour l'interaction entre qubits. Cette approche est tres generale puisqu'elle peut etre appliquee a differents designs de qubits. Finalement, on s'interesse a la lecture des qubits supraconducteurs de flux. Le detecteur suggere ici a l'avantage de pouvoir etre decouple du qubit lorsqu'il n'y a pas de mesure en cours.

  13. INVESTIGATION OF WASTE GLASS POURING PROCESS OVER A KNIFE EDGE

    SciTech Connect

    M.A. Ebadian, Ph.D.

    1999-01-01

    Vitrification is the process of capturing radioactive waste in glass. The Savannah River Site's (SRS) Defense Waste Processing Facility (DWPF) is one of the facilities using the vitrification technology to treat and immobilize radioactive waste. The objective of the project is to investigate the pouring behavior of molten glass over a pour spout knife edge. Experiments are run using simulant glass containing the same chemical formulation as the radioactive sludge glass, but without radioactive contaminants. The purpose of these tests is to obtain actual glass data that, when combined with previous cold data from other fluids, will provide an overall understanding of the physics of liquids flowing over a pour spout and knife edge, A specific objective is to verify computational fluid dynamics (CFD) models with a range of liquid data with particular emphasis on glass so as to provide confidence in use of these CFD models for designing a new improved pour spout for the DWPF melter. The work to be performed at FIU-HCET includes assembling the melting and pouring system that mimics the DWPF melter and determining the key parameters that may influence wicking. Information from the FIU-HCET melter tests will lead to better operating guidelines for the DWPF melter so as to avoid wicking. During FY98, a bench-scale melter complete with pour spout and a knife edge was designed and assembled at FIU-HCET. Initially, the system was tested with glycerine. Subsequently, glass provided by SRS was used for experimentation. Flow visualization tests were performed with the melter in FY98 to investigate the pouring behavior of molten glass over a pour spout model simulating a DWPF pour spout of the original design. Simulant glass containing the same chemical formulation as sludge glass but without radioactive contaminants was used in the tests. All the tasks and milestones mentioned in the PTP for the project were accomplished. The project completed its second year, and this document

  14. Reducing exposures during the pouring operations of a brass foundry.

    PubMed

    Edmonds, M A; Gressel, M G; O'Brien, D M; Clark, N J

    1993-05-01

    The focus of this exposure assessment and control technology study was a brass foundry and the lead exposures of workers involved in the transportation and pouring of metal. Controls in place at the foundry included ventilation systems at the furnace and along the continuous and stationary pouring lines. Real-time measurements were made to determine which tasks were the primary exposure sources, and a hand-held aerosol monitor was used to measure real-time aerosol exposures (as a surrogate for lead) in the workers' breathing zones. Data were collected over two 30-min sampling periods while worker activities were monitored using a video camera. Analysis of the data showed that the greatest aerosol exposures occurred during the transportation of an unventilated, full ladle, resulting in an average concentration of at least twice that of the other tasks. The study concluded that the addition of exhaust ventilation such as a moveable hood and duct system during the ladle transport and pouring tasks, and the implementation of a side draft hood at the pigging area, could result in a reduction of worker exposure to aerosols during the continuous pouring operation by up to 40%. The controls and techniques suggested in this study could be applied to pouring operations throughout the industry to reduce worker exposure to metal fumes.

  15. Ablation laser pour la microélectronique plastique

    NASA Astrophysics Data System (ADS)

    Alloncle, A.-P.; Thomas, B.; Grojo, D.; Delaporte, Ph.; Sentis, M.; Sanaur, S.; Barret, M.; Collot, Ph.

    2006-12-01

    La microélectronique plastique connaît un développement sans précédent dans le domaine de la recherche. Cette étude s'intéresse à l'utilisation des lasers impulsionnels pour la réalisation de composants organiques sur supports souples. Les deux aspects plus particulièrement étudiés sont d'une part la gravure de polymère pour réaliser un canal entre la source et le drain, et d'autre part le développement d'un procédéde dépôt appelé LIFT pour Laser Induced Forward Transfer. Ce dernier pourrait notamment permettre dedéposer des composés organiques non solubles.

  16. Using double-poured alginate impressions to fabricate bleaching trays.

    PubMed

    Haywood, V B; Powe, A

    1998-01-01

    Esthetic and diagnostic treatment often requires two casts of one arch, one for baseline and one for alterations (diagnostic wax-up, bleaching tray, occlusal analysis). The purpose of this study was to compare the accuracy of stone casts generated from a second pour of a properly handled alginate impression with first-poured casts. A maxillary dentoform was indexed with six reference spaces (#8-15, 9-2, 2-15, and incisal-to-gingival of #3, 9, 14). Irreversible hydrocolloid (Jeltrate) impressions were made in perforated steel trays by a single investigator. Impression material was spatulated for 1 minute. The seated impression and dentoform were wrapped in a damp paper towel to simulate intraoral conditions, and allowed to set for 2 minutes. Upon separation, the impression was stored in a damp towel for 5 minutes. The impression was poured in cast stone (Microstone) according to the manufacturer's instructions. The stone-filled impression was immediately rewrapped in a damp paper towel and allowed to set for 45 minutes at room temperature. Upon removal of the stone, the impression was rinsed with cold water, shaken dry, and repoured in the same manner. Ten impressions were made: the first five impressions were poured to make casts for Group A, then repoured as described above for casts for Group B. The remaining five impressions were poured once to make casts for Group C. The six spaces of each cast were measured three times in random order using a dial caliper and the space average calculated for the cast. At each space, analysis of variance showed no significant difference among Groups A, B, or C (P < 0.05). When alginate impressions that have been poured with cast stone are kept moist during stone setting and repoured within 45 minutes, two casts can be generated from one impression with the same degree of accuracy as two casts made from taking two separate impressions, providing the alginate does not tear during first cast removal.

  17. New methods determine pour point more accurately than ASTM D-97

    SciTech Connect

    Khan, H.U.; Dilawar, S.V.K.; Nautiyal, S.P.; Srivastava, S.P. )

    1993-11-01

    A new, alternative method determines petroleum fluid pour points with [+-] 1 C. precision and better accuracy than the standard ASTM D-97 procedure. The new method measures the pour point of transparent fluids by determining wax appearance temperature (WAT). Also, pour points of waxy crude oils can be determined by measuring a flow characteristic called restart pressure.

  18. Algorithmes et architectures pour ordinateurs quantiques supraconducteurs

    NASA Astrophysics Data System (ADS)

    Blais, A.

    2003-09-01

    'utilisation de qubits basés sur les jonctions Josephson. On présente entre autres une approche originale pour l'interaction entre qubits. Cette approche est très générale puisqu'elle peut être appliquée à différents designs de qubits. Finalement, on s'intéresse à la lecture des qubits supraconducteurs de flux. Le détecteur suggéré ici a l'avantage de pouvoir être découplé du qubit lorsqu'il n'y a pas de mesure en cours.

  19. Pouring and running a protein gel by reusing commercial cassettes.

    PubMed

    Hwang, Alexander C; Grey, Paris H; Cuddy, Katrina; Oppenheimer, David G

    2012-01-01

    The evaluation of proteins using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analysis is a common technique used by biochemistry and molecular biology researchers. For laboratories that perform daily analyses of proteins, the cost of commercially available polyacrylamide gels (~$10/gel) can be considerable over time. To mitigate this cost, some researchers prepare their own polyacrylamide gels. Traditional methods of pouring these gels typically utilize specialized equipment and glass gel plates that can be expensive and preclude pouring many gels and storing them for future use. Furthermore, handling of glass plates during cleaning or gel pouring can result in accidental breakage creating a safety hazard, which may preclude their use in undergraduate laboratory classes. Our protocol demonstrates how to pour multiple protein gels simultaneously by recycling Invitrogen Nupage Novex minigel cassettes, and inexpensive materials purchased at a home improvement store. This economical and streamlined method includes a way to store the gels at 4°C for a few weeks. By re-using the plastic gel cassettes from commercially available gels, labs that run frequent protein gels can save significant costs and help the environment. In addition, plastic gel cassettes are extremely resistant to breakage, which makes them ideal for undergraduate laboratory classrooms. PMID:22349047

  20. Workmen and Crawler Crane pouring roof slab and parapet wall ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Workmen and Crawler Crane pouring roof slab and parapet wall of building - looking northwest. Taken Nov. 15, 1929. 14th Naval District Photo Collection Item No. 7165 - U.S. Naval Base, Pearl Harbor, Exterior Cranes, Waterfront Crane Track System, Pearl City, Honolulu County, HI

  1. First Concrete Poured for NSLS-II Ring Building

    SciTech Connect

    Brookhaven Lab

    2009-07-20

    The first bits of the National Synchrotron Light Source II (NSLS-II) ring building are now taking shape after the concrete-pouring process for the new, world-class facility began on Monday, July 20. Once complete, the 400,000 square-foot building will hou

  2. STEEL BEAMS FOR FIRST FLOOR BEING READIED FOR CONCRETE POUR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    STEEL BEAMS FOR FIRST FLOOR BEING READIED FOR CONCRETE POUR UNDER WEATHER SHELTER DURING COLD WINTER. NOTE ABUNDANCE OF BEAMS; THE FLOOR WILL SUPPORT HEAVY LOADS. INL NEGATIVE NO. 1175. Unknown Photographer, 12/20/1950 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  3. 11. VIEW OF PLACING STEEL FOR POURING OF FIRST SLABS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    11. VIEW OF PLACING STEEL FOR POURING OF FIRST SLABS OF SPILLWAY CHUTE FROM VICINITY OF WESTERN SIDE OF SPILLWAY APRON, FACING SOUTH. September 1928 - Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skokomish River, 5 miles West of Hood Canal, Hoodsport, Mason County, WA

  4. Using double-poured alginate impressions to fabricate bleaching trays.

    PubMed

    Haywood, V B; Powe, A

    1998-01-01

    Esthetic and diagnostic treatment often requires two casts of one arch, one for baseline and one for alterations (diagnostic wax-up, bleaching tray, occlusal analysis). The purpose of this study was to compare the accuracy of stone casts generated from a second pour of a properly handled alginate impression with first-poured casts. A maxillary dentoform was indexed with six reference spaces (#8-15, 9-2, 2-15, and incisal-to-gingival of #3, 9, 14). Irreversible hydrocolloid (Jeltrate) impressions were made in perforated steel trays by a single investigator. Impression material was spatulated for 1 minute. The seated impression and dentoform were wrapped in a damp paper towel to simulate intraoral conditions, and allowed to set for 2 minutes. Upon separation, the impression was stored in a damp towel for 5 minutes. The impression was poured in cast stone (Microstone) according to the manufacturer's instructions. The stone-filled impression was immediately rewrapped in a damp paper towel and allowed to set for 45 minutes at room temperature. Upon removal of the stone, the impression was rinsed with cold water, shaken dry, and repoured in the same manner. Ten impressions were made: the first five impressions were poured to make casts for Group A, then repoured as described above for casts for Group B. The remaining five impressions were poured once to make casts for Group C. The six spaces of each cast were measured three times in random order using a dial caliper and the space average calculated for the cast. At each space, analysis of variance showed no significant difference among Groups A, B, or C (P < 0.05). When alginate impressions that have been poured with cast stone are kept moist during stone setting and repoured within 45 minutes, two casts can be generated from one impression with the same degree of accuracy as two casts made from taking two separate impressions, providing the alginate does not tear during first cast removal. PMID:9656923

  5. Viscous pour point of microquantities of fluid lubricants

    NASA Technical Reports Server (NTRS)

    Gardos, M. N.

    1974-01-01

    A method is described involving the measurement of the viscous desolidification (pour) point of wax-free lubricant fluids. This method is especially useful for pour point testing of experimental quantities, since only six to sixteen drops of the oil are required for a single determination (automatically performed in duplicate) with nearly full recovery of the sample. The technique consists of: (1) rapidly freezing a small, predetermined amount of the oil on the side of a small test tube to form a frozen drop of given dimensions; (2) immersing duplicates of the charged and stoppered tubes into a cold bath; and (3) measuring the temperature when the drop front has moved a predetermined distance as the bath warms up.

  6. CONCRETE POURS HAVE PRODUCED A REINFORCED SUPPORT BASE FOR MTR ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    CONCRETE POURS HAVE PRODUCED A REINFORCED SUPPORT BASE FOR MTR REACTOR. PIPE TUNNEL IS UNDER CONSTRUCTION AT CENTER OF VIEW. PIPES WILL CARRY RADIOACTIVE WATER FROM REACTOR TO WATER PROCESS BUILDING. CAMERA LOOKS SOUTH INTO TUNNEL ALONG WEST SIDE OF REACTOR BASE. TWO CAISSONS ARE AT LEFT SIDE OF VIEW. NOTE "WINDOW" IN SOUTH FACE OF REACTOR BASE AND ALSO GROUP OF PENETRATIONS TO ITS LEFT. INL NEGATIVE NO. 733. Unknown Photographer, 10/6/1950 - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  7. Plutonium Immobilization Program -- Cold pour Phase 1 test results

    SciTech Connect

    Hamilton, L.

    2000-01-18

    The Plutonium Immobilization Project will disposition excess weapons grade plutonium. It uses the can-in-canister approach that involves placing plutonium-ceramic pucks in sealed cans that are then placed into Defense Waste Processing Facility canisters. These canisters are subsequently filled with high-level radioactive waste glass. This process puts the plutonium in a stable form and makes it unattractive for reuse. A cold (non-radioactive) glass pour program was performed to develop and verify the baseline design for the canister and internal hardware. This paper describes the Phase 1 scoping test results.

  8. Propagation of convective combustion in poured-density explosives

    SciTech Connect

    Foteenkov, V.A.; Ermolaev, B.S.; Korotkov, A.I.; Sulimov, A.A.

    1982-09-01

    This paper is concerned with analyzing nonstationary stabilized convective combustion, which has not been previously systematically studied. The substance studied (DRP-3 gunpowder or TNT) was poured into a strong metallic casing. The main results of the experiments for a semiclosed volume with coil ignition from the open end concludes that the velocity of convective combustion with rapidly increasing pressure in the flame front can be stabilized only as a result of effective packing of the explosive charge in front of the flame front, when the pressure in the wave approaches the yield stress of the explosive (of the order of 1 kbar).

  9. Conception d'un circuit d'etouffement pour photodiodes a avalanche en mode geiger pour integration heterogene 3d

    NASA Astrophysics Data System (ADS)

    Boisvert, Alexandre

    Le Groupe de Recherche en Appareillage Medical de Sherbrooke (GRAMS) travaille actuellement sur un programme de recherche portant sur des photodiodes a avalanche mono-photoniques (PAMP) operees en mode Geiger en vue d'une application a la tomographie d'emission par positrons (TEP). Pour operer dans ce mode; la PAMP, ou SPAD selon l'acronyme anglais (Single Photon Avalanche Diode), requiert un circuit d'etouffement (CE) pour, d'une part, arreter l'avalanche pouvant causer sa destruction et, d'autre part. la reinitialiser en mode d'attente d'un nouveau photon. Le role de ce CE comprend egalement une electronique de communication vers les etages de traitement avance de signaux. La performance temporelle optimale du CE est realisee lorsqu'il est juxtapose a la PAMP. Cependant, cela entraine une reduction de la surface photosensible ; un element crucial en imagerie. L'integration 3D, a base d'interconnexions verticales, offre une solution elegante et performante a cette problematique par l'empilement de circuits integres possedant differentes fonctions (PAMP, CE et traitement avance de signaux). Dans l'approche proposee, des circuits d'etouffement de 50 pm x 50 pm realises sur une technologie CMOS 130 mn 3D Tezzaron, contenant chacun 112 transistors, sont matrices afin de correspondre a une matrice de PAMP localisee sur une couche electronique superieure. Chaque circuit d'etouffement possede une gigue temporelle de 7,47 ps RMS selon des simulations faites avec le logiciel Cadence. Le CE a la flexibilite d'ajuster les temps d'etouffement et de recharge pour la PAMP tout en presentant une faible consommation de puissance (~ 0,33 mW a 33 Mcps). La conception du PAMP necessite de supporter des tensions superieures aux 3,3 V de la technologie. Pour repondre a ce probleme, des transistors a drain etendu (DEMOS) ont ete realises. En raison de retards de production par Ies fabricants, les circuits n'ont pu etre testes physiquement par des mesures. Les resultats de ce memoire

  10. Vaginal cancer

    MedlinePlus

    Vaginal cancer; Cancer - vagina; Tumor - vaginal ... Most vaginal cancers occur when another cancer, such as cervical or endometrial cancer , spreads. This is called secondary vaginal cancer. Cancer ...

  11. VIEW OF THE #67 HOLDING FURNACE POURING AT #04 COPPER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF THE #67 HOLDING FURNACE POURING AT #04 COPPER STATION IN THE CASTING SHOP. (OTHER UNITS MELT BRASS ALLOYS.) THIS IS THE SOUTHERNMOST FURNACE OF THE FOUR PRESENTLY IN SITU. THE CURRENT CASTING SHOP WAS CONSTRUCTED DURING THE EARLY 1970'S, REPLACING THE ORIGINAL PRE-WWI FACILITY. STATIONS #02,03, AND 04 EACH CONSIST OF A HOLDER FLANKED BY A PAIR OF 800 KW ELECTRIC MELTERS. THE HOLDER IS RATED AT 85,000 LBS. SHAKER BOXES, LOCATED AT THE REAR OF EACH MELTER SUPPLY THE MIXTURE OF INGREDIENTS REQUIRED FOR EACH PARTICULAR ALLOY. ONE MEMBER OF THE THREE-MAN CASTING TEAMS IS RESPONSIBLE FOR SHAKING METAL INTO THE MELTERS. IN THE LOWER RIGHT ARE SHOWN THE MOLD STORAGE AREA AND THE FURNACE BUILDERS' AREA FOR CHIPPING AND REBRICKING OFF-LINE UNITS. - American Brass Foundry, 70 Sayre Street, Buffalo, Erie County, NY

  12. VIEW OF THE #67 HOLDING FURNACE POURING AT #04 COPPER ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    VIEW OF THE #67 HOLDING FURNACE POURING AT #04 COPPER STATION IN THE CASTING SHOP. (OTHER UNITS MELT BRASS ALLOYS.) THIS IS THE SOUTHERNMOST FURNACE OF THE FOUR PRESENTLY IN SITU. THE CURRENT CASTING SHOP WAS CONSTRUCTED DURING THE EARLY 1970'S, REPLACING THE ORIGINAL PRE-WWI FACILITY. STATIONS #02, 03, AND 04 EACH CONSIST OF A HOLDER FLANKED BY A PAIR OF 800 KW ELECTRIC MELTERS. THE HOLDER IS REHEATED AT 85,000 LBS. SHAKER BOX, LOCATED AT THE REAR OF EACH MELTER SUPPLY THE MIXTURE OF INGREDIENTS REQUIRED FOR EACH PARTICULAR ALLOY. ONE MEMBER OF THE THREE-MAN CASTING TEAMS IS RESPONSIBLE FOR SHAKING METAL INTO THE MELTERS. IN THE LOWER RIGHT ARE SHOWN THE MOLD STORAGE AREA AND THE FURNACE BUILDERS' AREA FOR CHIPPING AND REBRICKING OFF-LINE UNITS. - American Brass Foundry, 70 Sayre Street, Buffalo, Erie County, NY

  13. Caracterisation thermique de modules de refroidissement pour la photovoltaique concentree

    NASA Astrophysics Data System (ADS)

    Collin, Louis-Michel

    Pour rentabiliser la technologie des cellules solaires, une reduction du cout d'exploitation et de fabrication est necessaire. L'utilisation de materiaux photovoltaiques a un impact appreciable sur le prix final par quantite d'energie produite. Une technologie en developpement consiste a concentrer la lumiere sur les cellules solaires afin de reduire cette quantite de materiaux. Or, concentrer la lumiere augmente la temperature de la cellule et diminue ainsi son efficacite. Il faut donc assurer a la cellule un refroidissement efficace. La charge thermique a evacuer de la cellule passe au travers du recepteur, soit la composante soutenant physiquement la cellule. Le recepteur transmet le flux thermique de la cellule a un systeme de refroidissement. L'ensemble recepteur-systeme de refroidissement se nomme module de refroidissement. Habituellement, la surface du recepteur est plus grande que celle de la cellule. La chaleur se propage donc lateralement dans le recepteur au fur et a mesure qu'elle traverse le recepteur. Une telle propagation de la chaleur fournit une plus grande surface effective, reduisant la resistance thermique apparente des interfaces thermiques et du systeme de refroidissement en aval vers le module de refroidissement. Actuellement, aucune installation ni methode ne semble exister afin de caracteriser les performances thermiques des recepteurs. Ce projet traite d'une nouvelle technique de caracterisation pour definir la diffusion thermique du recepteur a l'interieur d'un module de refroidissement. Des indices de performance sont issus de resistances thermiques mesurees experimentalement sur les modules. Une plateforme de caracterisation est realisee afin de mesurer experimentalement les criteres de performance. Cette plateforme injecte un flux thermique controle sur une zone localisee de la surface superieure du recepteur. L'injection de chaleur remplace le flux thermique normalement fourni par la cellule. Un systeme de refroidissement est installe

  14. Dimensional Accuracy of Stone Casts Obtained with Multiple Pours into the Same Mold

    PubMed Central

    Valente, Valdimar da Silva; Zanetti, Artêmio Luiz; Feltrin, Pedro Paulo; Inoue, Ricardo Tatsuo; de Moura, Carmem Dolores Vilarinho Soares; Pádua, Luiz Evaldo de Moura

    2012-01-01

    Aim. The aim of the present study was to compare the dimensional accuracy of stone casts obtained with vinyl polysiloxane molds through the double-impression technique with three pours into the same mold. Methods. A stainless steel master model was constructed simulating a three-unit fixed prosthesis. Twelve impressions were taken of this master model with addition silicone, using the double-impression technique. Three pours of type IV gypsum were then made into each mold, thus producing 36 casts. The pours were made 1 hour, 6 hours and 24 hours after the impression procedure. Next, intra- and interabutment measurements were made in a coordinate measuring machine. Results. Comparative analysis of the dimensional accuracy of stone casts resulting from multiple pours was not statistically significant in pours first and second (P > 0.05). These values, however, were statistically significant at third pour in the height in abutment 1 and upper distance interabutment. Conclusion. The wait time (1 hour, and 6 hours) observed before pouring the stone into the same molds did not cause significant dimensional accuracy of the casts. PMID:23320186

  15. Dimensional accuracy of stone casts obtained with multiple pours into the same mold.

    PubMed

    Valente, Valdimar da Silva; Zanetti, Artêmio Luiz; Feltrin, Pedro Paulo; Inoue, Ricardo Tatsuo; de Moura, Carmem Dolores Vilarinho Soares; Pádua, Luiz Evaldo de Moura

    2012-01-01

    Aim. The aim of the present study was to compare the dimensional accuracy of stone casts obtained with vinyl polysiloxane molds through the double-impression technique with three pours into the same mold. Methods. A stainless steel master model was constructed simulating a three-unit fixed prosthesis. Twelve impressions were taken of this master model with addition silicone, using the double-impression technique. Three pours of type IV gypsum were then made into each mold, thus producing 36 casts. The pours were made 1 hour, 6 hours and 24 hours after the impression procedure. Next, intra- and interabutment measurements were made in a coordinate measuring machine. Results. Comparative analysis of the dimensional accuracy of stone casts resulting from multiple pours was not statistically significant in pours first and second (P > 0.05). These values, however, were statistically significant at third pour in the height in abutment 1 and upper distance interabutment. Conclusion. The wait time (1 hour, and 6 hours) observed before pouring the stone into the same molds did not cause significant dimensional accuracy of the casts. PMID:23320186

  16. Fabrication de transistors monoelectroniques pour la detection de charge

    NASA Astrophysics Data System (ADS)

    Richard, Jean-Philippe

    Le transistor monoelectro'nique (SET) est un candidat que l'on croyait avoir la capacite de remplacer le transistor des circuits integres actuel (MOSFET). Pour des raisons de faible gain en voltage, d'impedance de sortie elevee et de sensibilite aux fluctuations de charges, il est considere aujourd'hui qu'un hybride tirant profit des deux technologies est plus avantageux. En exploitant sa lacune d'etre sensible aux variations de charge, le SET est davantage utilise dans des applications ou la detection de charge s'avere indispensable, notamment dans les domaines de la bio-detection et de l'informatique quantique. Ce memoire presente une etude du transistor monoelectronique utilise en tant que detecteur de charge. La methode de fabrication est basee sur le procede nanodamascene developpe par Dubuc et al. [11] permettant au transistor monoelectronique de fonctionner a temperature ambiante. La temperature d'operation etant intimement liee a la geometrie du SET, la cle du procede nanodamascene reside dans le polissage chimico-mecanique (CMP) permettant de reduire l'epaisseur des SET jusqu'a des valeurs de quelques nanametres. Dans ce projet de maitrise, nous avons cependant opte pour que le SET soit opere a temperature cryogenique. Une faible temperature d'operation permet le relachement des contraintes de dimensions des dispositifs. En considerant les variations de procedes normales pouvant survenir lors de la fabrication, la temperature d'operation maximale calculee en conception s'etend de 27 K a 90 K, soit une energie de charge de 78 meV a 23 meV. Le gain du detecteur de charge etant dependant de la distance de couplage, les resultats de simulations demontrent que cette distance doit etre de 200 nm pour que la detection de charge soit optimale. Les designs concus sont ensuite fabriques sur substrat d'oxyde de silicium. Les resultats de fabrication de SET temoignent de la robustesse du procede nanodamascene. En effet, les dimensions atteintes experimentalement s

  17. Ressources pour les personnes atteintes de démence

    PubMed Central

    Frank, Christopher; Feldman, Sid; Schulz, Mary

    2011-01-01

    Résumé Objectif Résumer les services offerts par la Société Alzheimer et discuter des autres sources de soutien et d’information à la disposition des personnes atteintes de démence. Sources de l’information On a fait une recension dans Ovid MEDLINE à l’aide des expressions dementia, Alzheimer disease, community health services utilization et caregiver stress. Message principal Il a été démontré qu’il est bénéfique aux patients et aux aidants si le diagnostic de la démence est posé tôt dans la maladie. Une consultation auprès de la Société Alzheimer peut aider dans la prise en charge non pharmacologique de la démence au moment du diagnostic et en tout temps durant l’évolution de la maladie. Parmi les services offerts, on peut mentionner des renseignements au sujet de la démence, le soutien aux aidants, la coordination des services communautaires et une grande diversité de ressources écrites à l’intention des patients et des aidants. Là où il est offert, le programme Premier lien peut aider avec l’orientation vers des services en minimisant la nécessité pour les patients ou les aidants de communiquer eux-mêmes avec les filiales locales de la Société. On discute aussi d’autres ressources, y compris les soins de répit et les approches technologiques pour prendre en charge l’errance. Conclusion La Société Alzheimer joue un rôle important dans la prise en charge de la démence et les médecins de famille devraient toujours envisager d’y référer leurs patients au moment du diagnostic, quelle que soit la gravité de l’état. Premier lien, quand il est accessible, peut faciliter le contact avec les services. Des ressources comme les soins de répit et les programmes de jour devraient toujours être considérés lorsqu’ils sont disponibles.

  18. Refinement of primary Si grains in Al-20%Si alloy slurry through serpentine channel pouring process

    NASA Astrophysics Data System (ADS)

    Zheng, Zhi-kai; Mao, Wei-min; Liu, Zhi-yong; Wang, Dong; Yue, Rui

    2016-05-01

    In this study, a serpentine channel pouring process was used to prepare the semi-solid Al-20%Si alloy slurry and refine primary Si grains in the alloy. The effects of the pouring temperature, number of curves in the serpentine channel, and material of the serpentine channel on the size of primary Si grains in the semi-solid Al-20%Si alloy slurry were investigated. The results showed that the pouring temperature, number of the curves, and material of the channel strongly affected the size and distribution of the primary Si grains. The pouring temperature exerted the strongest effect, followed by the number of the curves and then the material of the channel. Under experimental conditions of a four-curve copper channel and a pouring temperature of 701°C, primary Si grains in the semi-solid Al-20%Si alloy slurry were refined to the greatest extent, and the lath-like grains were changed into granular grains. Moreover, the equivalent grain diameter and the average shape coefficient of primary Si grains in the satisfactory semi-solid Al-20%Si alloy slurry were 24.4 μm and 0.89, respectively. Finally, the refinement mechanism and distribution rule of primary Si grains in the slurry prepared through the serpentine channel pouring process were analyzed and discussed.

  19. Solution saline hypertonique pour la bronchiolite chez les bébés

    PubMed Central

    Grewal, Simran; Goldman, Ran D.

    2015-01-01

    Résumé Question J’ai récemment reçu le rapport du congé de l’hôpital d’un patient de 1 an admis pour une bronchiolite. On y indiquait qu’il avait été traité, entre autres, avec une solution saline hypertonique inhalée. Cette thérapie est-elle recommandée pour les enfants en milieu de soins aigus? Réponse La bronchiolite, causée principalement par le virus respiratoire syncytial, est très commune en hiver. C’est la cause la plus fréquente d’hospitalisation durant l’enfance. Plusieurs bonnes études ont été effectuées au cours de la dernière décennie sur l’utilisation d’une solution saline hypertonique nébulisée pour la prise en charge de la bronchiolite; toutefois, leurs résultats sont conflictuels. Quoiqu’il puisse y avoir un rôle pour la solution saline hypertonique nébulisée chez les enfants hospitalisés pour une bronchiolite pendant plus de 3 jours, ce traitement dans d’autres milieux ne confère pas suffisamment de bienfaits pour recommander son utilisation.

  20. Device for controlling the pouring of molten materials

    DOEpatents

    Moore, A.F.; Duncan, A.L.

    1994-02-15

    A device is described for controlling the pouring of a molten material from a crucible or other container. The device includes an annular retainer ring for mounting in the drain opening in the bottom of a conventional crucible, the retainer ring defining a opening there through. The device also includes a plug member having an annular forward end portion for force-fit reception in the opening of the retainer ring to selectively seal the opening and for being selectively forced through the opening. The plug member has a rear end portion for being positioned within the crucible, the rear end portion including stop means for prohibiting the rear end portion from passing through the opening in the retainer ring when the forward end portion is selectively forced through the opening. The plug member defines at least one, and preferably a plurality of flutes, each extending from a point rearward the annular forward end portion of the plug member, and forward the stop means, to a point rearward of the stop means. The flutes permit fluid communication between the interior and exterior of the crucible when the forward end portion of the plug member is forced through the opening in the retaining ring such that the molten material is allowed to flow from the crucible. 5 figures.

  1. Device for controlling the pouring of molten materials

    DOEpatents

    Moore, Alan F.; Duncan, Alfred L.

    1994-01-01

    A device for controlling the pouring of a molten material from a crucible or other container. The device (10) includes an annular retainer ring (12) for mounting in the drain opening in the bottom of a conventional crucible (16), the retainer ring defining a opening (14) therethrough. The device (10) also includes a plug member (22) having an annular forward end portion (24) for force-fit reception in the opening (14) of the retainer ring (12) to selectively seal the opening (14) and for being selectively forced through the opening (14). The plug member (22) has a rear end portion (26) for being positioned within the crucible (16), the rear end portion (26) including stop means for prohibiting the rear end portion from passing through the opening (14) in the retainer ring (12) when the forward end portion (24) is selectively forced through the opening. The plug member (22) defines at least one, and preferably a plurality of flutes (32), each extending from a point rearward the annular forward end portion (24) of the plug member (22), and forward the stop means, to a point rearward of the stop means. The flutes (32) permit fluid communication between the interior and exterior of the crucible (16) when the forward end portion (24) of the plug member (22) is forced through the opening (14) in the retaining ring (12) such that the molten material is allowed to flow from the crucible (16).

  2. Les antihistaminiques pour les enfants souffrant d’otite moyenne

    PubMed Central

    Bonney, Asha G.; Goldman, Ran D.

    2014-01-01

    Résumé Question L’otite moyenne est un problème très fréquent en pédiatrie et peut causer bien du stress à l’enfant et à ses parents. Les antihistaminiques et les décongestionnants ont-ils un rôle à jouer dans la prise en charge de l’otite moyenne aiguë ou de l’otite moyenne avec épanchement chez les enfants? Réponse Traditionnellement, les antihistaminiques et les décongestionnants ont été utilisés pour traiter l’otite moyenne; par ailleurs, de récentes lignes directrices, fondées sur des études dans lesquelles on a constaté des résultats négatifs, recommandent de ne pas les utiliser systématiquement. Aucune combinaison d’antihistaminique et de décongestionnant n’a été éprouvée comme ayant des bienfaits cliniquement significatifs, sans compter qu’il faut prendre en considération les effets indésirables possibles.

  3. Eye Cancer

    MedlinePlus

    ... Eye Cancer - Overview Request Permissions Print to PDF Eye Cancer - Overview Approved by the Cancer.Net Editorial Board , ... Cancer Research and Advocacy Survivorship Blog About Us Eye Cancer Guide Cancer.Net Guide Eye Cancer Overview Statistics ...

  4. Cancer - resources

    MedlinePlus

    Resources - cancer ... The following organizations are good resources for information on cancer : American Cancer Society -- www.cancer.org Cancer Care -- www.cancercare.org National Cancer Institute -- www.cancer.gov

  5. Spectroscopie pompe-sonde pour la détection de bioaérosols

    NASA Astrophysics Data System (ADS)

    Guyon, L.; Courvoisier, F.; Wood, V.; Boutou, V.; Bartelt, A.; Roth, M.; Rabitz, H.; Wolf, J. P.

    2006-10-01

    La fluorescence du Tryptophane excité par une impulsion ultra-brève à 270 nm peut être diminuée d'un facteur deux par une seconde impulsion à 800 nm, à l'aide d'un dispositif pompe-sonde. Cette décroissance est aussi observée pour les bactéries vivantes, dont le Tryptophane est l'un des fluorophores, tandis qu'aucune décroissance n'est observée pour d'autres molécules organiques comme le naphtalène ou le gazole, malgré des spectres d'absorption et de fluorescence similaires. Cette différence remarquable est très prometteuse pour la distinction d'aérosols biologiques et organiques.

  6. Dispositifs semi-conducteurs pour biodetection photonique et imagerie hyperspectrale

    NASA Astrophysics Data System (ADS)

    Lepage, Dominic

    La creation d'un microsysteme d'analyse biochimique, capable de livrer des diagnostics preliminaires sur la quantification d'elements pathogenes, est un defi multidisciplinaire ayant un impact potentiel important sur la majorite des activites humaines en sante et securite. En effet, un dispositif integre, peu dispendieux et livrant des resultats facilement interpretables, permettrait une vulgarisation des capacites de biodetection a travers differents domaines d'applications societaires et industriels. Le present document se concentre sur l'integration monolithique d'une methode de biocaracterisation dans le but de generer un transducteur miniaturise et efficace, element central d'un microsysteme de detection. Le projet de recherche ici presente vise l'etude de l'applicabilite d'un capteur plasmonique integre par l'entremise de nanostructures semi-conductrices aux proprietes quantiques et luminescentes. L'approche presentee est globale; c'est-a-dire qu'on vise a repondre aux questions fondamentales impliquant la comprehension des phenomenes photoniques, le developpement et la fabrication des dispositifs, les methodes de caracterisations possibles ainsi que l'application d'un transducteur SPR integre a la biodetection. En d'autres termes : dans quelles circonstances et comment un transducteur plasmonique integre doit-il etre realise pour l'application a la detection delocalisee d'elements pathogenes? Dans le but d'engendrer un instrument simple a l'echelle de l'usager, l'integration de la connaissance a l'echelle du design est donc effectuee. Ainsi, des capteurs plasmoniques monolithiques sont concus a l'aide de modeles theoriques ici presentes. Un instrument de mesure hyperspectrale conjuguee permettant de cartographier directement la relation de dispersion des plasmons diffractes a ete construit et teste. Cet instrument est employe a la cartographie d'elements de diffusion. Finalement, une demonstration du fonctionnement du dispositif, appliquee a la

  7. Analysis Of The Sludge Batch 7b (Macrobatch 9) DWPF Pour Stream Glass Sample

    SciTech Connect

    Johnson, F. C.; Crawford, C. L.; Pareizs, J. M.

    2013-11-18

    The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 7b (SB7b), also referred to as Macrobatch 9 (MB9), in January 2012. SB7b is a blend of the heel of Tank 40 from Sludge Batch 7a (SB7a) and the SB7b material that was transferred to Tank 40 from Tank 51. SB7b was processed using Frit 418. During processing of each sludge batch, the DWPF is required to take at least one glass sample to meet the objectives of the Glass Product Control Program (GPCP), which is governed by the DWPF Waste Form Compliance Plan, and to complete the necessary Production Records so that the final glass product may be disposed of at a Federal Repository. Two pour stream glass samples were collected while processing SB7b. The samples were transferred to the Savannah River National Laboratory (SRNL) where one was analyzed and the other was archived. The following conclusions were drawn from the analytical results provided in this report: The sum of oxides for the official SB7b pour stream glass is within the Product Composition Control System (PCCS) limits (95-105 wt%); The average calculated Waste Dilution Factor (WDF) for SB7b is 2.3. In general, the measured radionuclide content of the official SB7b pour stream glass is in good agreement with the calculated values from the Tank 40 dried sludge results from the SB7b Waste Acceptance Program Specification (WAPS) sample; As in previous pour stream samples, ruthenium and rhodium inclusions were detected by Scanning Electron Microscopy-Electron Dispersive Spectroscopy (SEM-EDS) in the SB7b pour stream sample; The Product Consistency Test (PCT) results indicate that the official SB7b pour stream glass meets the waste acceptance criteria for durability with a normalized boron release of 0.8 g/L, which is an order of magnitude less than the Environmental Assessment (EA) glass; The measured density of the SB7b pour stream glass was 2.70 g/cm{sup 3}; The Fe{sup 2+}/ΣFe ratio of the SB7b pour stream samples was 0.07.

  8. How polymer additives reduce the pour point of hydrocarbon solvents containing wax crystals.

    PubMed

    Binks, Bernard P; Fletcher, Paul D I; Roberts, Noel A; Dunkerley, John; Greenfield, Hannah; Mastrangelo, Antonio; Trickett, Kieran

    2015-02-14

    We have investigated how four different pour point depressant (PPD) polymers affect the pour point transition in mixtures of a single pure wax in a solvent. We used either n-eicosane (C20), CH3(CH2)18CH3, n-tetracosane (C24), CH3(CH2)22CH3 or n-hexatriacontane (C36), CH3(CH2)34CH3 as the wax component with either n-heptane or toluene as the solvent component. For all wax-solvent combinations, the measured variation of wax solubility with temperature is well predicted by ideal solution theory. The variation of pour point temperature as a function of the overall wax concentration is quantitatively modelled using the idea that, for each overall wax concentration, the pour point occurs at a temperature at which a critical volume fraction ϕ* of wax crystals has precipitated. Close to the pour point temperature, extraction and examination of the wax crystals show they consist of polydisperse, irregularly-shaped platelets with axial ratios (h/d, where h is the plate thickness and d is the plate long dimension) in the range 0.005-0.05. It is found that the measured ϕ* values corresponding to the pour point transitions are weakly correlated with the wax crystal axial ratios (h/d) for all wax-solvent-PPD polymer combinations. These results indicate that the pour point transition occurs at a volume fraction larger than the value at which the volumes of rotation of the platelet crystals overlap, i.e., 2.5(h/d) < ϕ* < 11(h/d). PPD polymers work, in part, by increasing the wax crystal axial ratio (h/d), thereby increasing ϕ* and reducing the pour point temperature. Since the PPD's ability to modify the wax crystal shape relies on its adsorption to the crystal-solution surface, it is anticipated and observed experimentally that optimum PPD efficacy is correlated with the difference between the wax and the polymer solubility boundary temperatures. This finding and the mechanistic insight gained here provide the basis for a simple and rapid screening test to identify candidate

  9. How polymer additives reduce the pour point of hydrocarbon solvents containing wax crystals.

    PubMed

    Binks, Bernard P; Fletcher, Paul D I; Roberts, Noel A; Dunkerley, John; Greenfield, Hannah; Mastrangelo, Antonio; Trickett, Kieran

    2015-02-14

    We have investigated how four different pour point depressant (PPD) polymers affect the pour point transition in mixtures of a single pure wax in a solvent. We used either n-eicosane (C20), CH3(CH2)18CH3, n-tetracosane (C24), CH3(CH2)22CH3 or n-hexatriacontane (C36), CH3(CH2)34CH3 as the wax component with either n-heptane or toluene as the solvent component. For all wax-solvent combinations, the measured variation of wax solubility with temperature is well predicted by ideal solution theory. The variation of pour point temperature as a function of the overall wax concentration is quantitatively modelled using the idea that, for each overall wax concentration, the pour point occurs at a temperature at which a critical volume fraction ϕ* of wax crystals has precipitated. Close to the pour point temperature, extraction and examination of the wax crystals show they consist of polydisperse, irregularly-shaped platelets with axial ratios (h/d, where h is the plate thickness and d is the plate long dimension) in the range 0.005-0.05. It is found that the measured ϕ* values corresponding to the pour point transitions are weakly correlated with the wax crystal axial ratios (h/d) for all wax-solvent-PPD polymer combinations. These results indicate that the pour point transition occurs at a volume fraction larger than the value at which the volumes of rotation of the platelet crystals overlap, i.e., 2.5(h/d) < ϕ* < 11(h/d). PPD polymers work, in part, by increasing the wax crystal axial ratio (h/d), thereby increasing ϕ* and reducing the pour point temperature. Since the PPD's ability to modify the wax crystal shape relies on its adsorption to the crystal-solution surface, it is anticipated and observed experimentally that optimum PPD efficacy is correlated with the difference between the wax and the polymer solubility boundary temperatures. This finding and the mechanistic insight gained here provide the basis for a simple and rapid screening test to identify candidate

  10. ANALYSIS OF DWPF SLUDGE BATCH 7A (MACROBATCH 8) POUR STREAM SAMPLES

    SciTech Connect

    Johnson, F.

    2012-05-01

    The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 7a (SB7a), also referred to as Macrobatch 8 (MB8), in June 2011. SB7a is a blend of the heel of Tank 40 from Sludge Batch 6 (SB6) and the SB7a material that was transferred to Tank 40 from Tank 51. SB7a was processed using Frit 418. During processing of each sludge batch, the DWPF is required to take at least one glass sample to meet the objectives of the Glass Product Control Program (GPCP), which is governed by the DWPF Waste Compliance Plan, and to complete the necessary Production Records so that the final glass product may be disposed of at a Federal Repository. Three pour stream glass samples and two Melter Feed Tank (MFT) slurry samples were collected while processing SB7a. These additional samples were taken during SB7a to understand the impact of antifoam and the melter bubblers on glass redox chemistry. The samples were transferred to the Savannah River National Laboratory (SRNL) where they were analyzed. The following conclusions were drawn from the analytical results provided in this report: (1) The sum of oxides for the official SB7a pour stream glass is within the Product Composition Control System (PCCS) limits (95-105 wt%). (2) The average calculated Waste Dilution Factor (WDF) for SB7a is 2.3. In general, the measured radionuclide content of the official SB7a pour stream glass is in good agreement with the calculated values from the Tank 40 dried sludge results from the SB7a Waste Acceptance Program Specification (WAPS) sample. (3) As in previous pour stream samples, ruthenium and rhodium inclusions were detected by Scanning Electron Microscopy-Electron Dispersive Spectroscopy (SEM-EDS) in the official SB7a pour stream sample. (4) The Product Consistency Test (PCT) results indicate that the official SB7a pour stream glass meets the waste acceptance criteria for durability with a normalized boron release of 0.64 g/L, which is an order of magnitude less than the Environmental

  11. Cancer Vaccines

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  12. Colon cancer

    MedlinePlus

    Colorectal cancer; Cancer - colon; Rectal cancer; Cancer - rectum; Adenocarcinoma - colon; Colon - adenocarcinoma ... In the United States, colorectal cancer is one of the leading causes of deaths due to cancer. Early diagnosis can often lead to a complete cure. Almost ...

  13. Developpement d'outils quantitatifs pour le suivi par imagerie TEP/TDM de la reponse a la chimiotherapie et de sa toxicite

    NASA Astrophysics Data System (ADS)

    Croteau, Etienne

    L'objectif de ce projet de doctorat est de developper des outils quantitatifs pour le suivi des traitements de chimiotherapie pour le cancer du sein et de leurs effets cardiotoxiques a l'aide de l'imagerie TEP dynamique. L'analyse cinetique en TEP dynamique permet l'evaluation de parametres biologiques in vivo. Cette analyse peut etre utilise pour caracteriser la reponse tumorale a la chimiotherapie et les effets secondaires nefastes qui peuvent en resulter. Le premier article de cette these decrit la mise au point des techniques d'analyse cinetique qui utilisent la fonction d'entree d'un radiotraceur derive de l'image dynamique. Des corrections de contamination radioactive externe (epanchement) et de l'effet de volume partiel ont ete necessaires pour standardiser l'analyse cinetique et la rendre quantitative. Le deuxieme article porte sur l'evaluation d'un nouveau radiotraceur myocardique. Le 11C-acetoacetate, un nouveau radiotraceur base sur un corps cetonique, a ete compare au 11C-acetate, couramment utilise en imagerie cardiaque TEP. L'utilisation de 3H-acetate et 14C-acetoacetate ont permis d'elucider la cinetique de ces traceurs depuis la fonction d'entree et la captation par les mitochondries cardiaques qui reflete la consommation en oxygene, jusqu'a la liberation de leurs principaux metabolites reciproques (3H20 et 14CO2). Le troisieme et dernier article de cette these presente l'integration d'un modele qui evalue la reserve cardiaque de perfusion et de consommation en oxygene. Un modele de cardiomyopathie a ete etabli a l'aide d'un agent chimiotherapeutique contre le cancer du sein, la doxorubicine, reconnu comme etant cardiotoxique. Un protocole de repos/effort a permis d'evaluer la capacite d'augmentation de perfusion et de consommation en oxygene par le coeur. La demonstration d'une reserve cardiaque reduite caracterise la cardiotoxicite. La derniere contribution de cette these porte sur la mise au point de methodes peu invasives pour mesurer la

  14. Quantitative Microbial Risk Assessment Tutorial: Pour Point Analysis of Land-applied Microbial Loadings and Comparison of Simulated and Gaging Station Results

    EPA Science Inventory

    This tutorial demonstrates a pour point analysis • Initiates execution of the SDMPB.• Navigates the SDMPB.• Chooses a pour point within a watershed, delineates the sub-area that contributes to that pour point, and collects data for it.• Considers land applicat...

  15. Vulva cancer

    MedlinePlus

    ... Cancer - perineum; Cancer - vulvar; Genital warts - vulvar cancer; HPV - vulvar cancer ... is rare. Risk factors include: Human papilloma virus (HPV, or genital warts ) infection in women under age ...

  16. EVALUATION OF THE IMPACT OF THIN POURS ON SALTSTONE PROPERTIES

    SciTech Connect

    Cozzi, A.; Langton, C.; Fox, K.

    2012-10-02

    The proposed Saltstone Disposal Unit 6 (SDU6) is a larger structure than the SDU4 cells and larger than the disposal units (SDU2, SDU3, and SDU5) currently in use or under construction. The additional capacity provided by SDU6 is desired to reduce life cycle costs and support site accelerated closure goals. The larger size of the planned SDU6 could result in saltstone being placed in thinner lifts as the unit is filled. This study was performed to determine whether thinner layers of saltstone negatively impact the performance of the waste form. A larger number of cold joints could potentially result in increased drying, salt deposition, and surface oxidation. A matrix of samples was prepared to simulate thin pours ranging from 0.5 to 6 inches thick. Each sample was cured for at least 28 days prior to further characterization. Leachability results showed that there is no obvious impact of the number of grout layers on the Leachability Index values for Na and NO{sub 3}. The concentrations of Cr, NO{sub 2}, and C{sub 2}O{sub 4} were below detection limits for all of the leachates. No attempt was made to evaluate the oxidation of these samples since no measureable Cr was leached, although this would appear to indicate that Cr in the samples remained reduced for cold joints with surfaces exposed for approximately four days. The results of hydraulic conductivity measurements showed that the number of cold joints in the samples did not have a significant impact on the measured values for the vertical lift orientation (i.e., when the flow path is perpendicular to the cold joints). For the horizontal lift orientation (i.e., when the flow path is parallel to the cold joints), the number of cold joints in the samples also did not appear to have a significant impact on hydraulic conductivity. The measured hydraulic conductivity was faster when the flow path was parallel to the cold joints as compared to when the flow path was perpendicular to the cold joints. Percolation

  17. [Reconstruction of a fire homicide after pouring denatured alcohol on the victim].

    PubMed

    Bohnert, Michael; Lehmann, Rainer; Simon, Karl-Heinz; Wehner, Frank

    2009-01-01

    A 48-year-old man died from extensive burns suffered especially on the upper part of the body during a dispute with his ex-wife, who had poured spirit or a spirit-water mixture over him. For initially unknown reasons, the man's clothing caught fire. Whereas the public prosecutor assumed that the woman had intentionally poured a larger amount of spirit over her ex-husband before setting fire to him, the defendant first claimed to have poured the rest of a water-spirit mixture left over from cleaning the windows over the man and that his clothing caught fire on lighting a cigarette. To clarify the course of events, fire tests with spirit in various dilutions were conducted, which showed that even with undiluted spirit a direct contact with the flame of at least 1 second is necessary to start a fire. There is no deflagration, if spirit is used as a fire accelerant. In the trial, the defendant made a confession and admitted to have poured a mixture of 75% spirit and 25% water over her ex-husband and set fire to his right sleeve with the intention to kill him. PMID:19579492

  18. [Reconstruction of a fire homicide after pouring denatured alcohol on the victim].

    PubMed

    Bohnert, Michael; Lehmann, Rainer; Simon, Karl-Heinz; Wehner, Frank

    2009-01-01

    A 48-year-old man died from extensive burns suffered especially on the upper part of the body during a dispute with his ex-wife, who had poured spirit or a spirit-water mixture over him. For initially unknown reasons, the man's clothing caught fire. Whereas the public prosecutor assumed that the woman had intentionally poured a larger amount of spirit over her ex-husband before setting fire to him, the defendant first claimed to have poured the rest of a water-spirit mixture left over from cleaning the windows over the man and that his clothing caught fire on lighting a cigarette. To clarify the course of events, fire tests with spirit in various dilutions were conducted, which showed that even with undiluted spirit a direct contact with the flame of at least 1 second is necessary to start a fire. There is no deflagration, if spirit is used as a fire accelerant. In the trial, the defendant made a confession and admitted to have poured a mixture of 75% spirit and 25% water over her ex-husband and set fire to his right sleeve with the intention to kill him.

  19. Evaluation of a Pour-Through Water Treatment Device for Use as Microbiological Purifier

    EPA Science Inventory

    The United States Environmental Protection Agency (EPA) Office of Research and Development has evaluated the performance of a Point-of-Use (POU) pour-through device designed for use in India, developing and emerging market (D&E) countries, and under emergency situations in the Un...

  20. Numerical simulation of multi-mini-pot pouring process of a 13-ton steel ingot

    NASA Astrophysics Data System (ADS)

    Li, Jun; Ge, Honghao; Wang, Bin; Wu, Menghuai; Li, Jianguo

    2015-06-01

    Heavy ingots up to several hundred tons for power plant forgings exhibit large scale grain size and morphology differences, which are harmful to the design of forging parameters, and severe macrosegregation, which could not be eliminated during the subsequent forging and heat treatment processing. To cast these ingots with more homogeneity, a multi-mini-pot (MMP) poring technique is proposed, in which liquid metal is poured by multi-mini-pot (MMP) with intermission between each pot and solidification occurs step by step. In this paper, we are focus on the prediction of macrosegregation in MMP pouring process. A three-phase model is employed to study the MMP pouring process for a 13-ton heavy ingot. The main features of this three-phases model in such a heavy ingot can be quantitatively modelled: growth of columnar dendrite trunks; nucleation, growth and sedimentation of equiaxed crystals; thermosolutal convection of the melt; solute transport by both convection and crystal sedimentation; and the columnar-to-equiaxed transition (CET). The results shown that the MMP pouring technique tend to decrease the macrosegregation significantly by compared with the conventional method.

  1. Coprological evaluation of pour-on and injectable formulation of moxidectin in beef cattle

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Two, 28 day(d) studies were conducted with naturally infected beef calves to assess the effect of allo-grooming behavior on fecal egg count (FEG)reductions and coproculture counts following treatment with pour-on or injectable moxidectin. The first study was conducted at the USDA Southern Plains Ex...

  2. Topical (pour-on) ivermectin in the treatment of canine scabies.

    PubMed Central

    Paradis, M; de Jaham, C; Pagé, N

    1997-01-01

    The efficacy of a pour-on formulation of ivermectin at 500 micrograms/kg body weight applied on the dorsum on days 1 and 15 was evaluated in 90 dogs from a shelter, naturally infested with Sarcoptes scabiei. This very practical form of treatment was successful in eradicating scabies from this shelter. PMID:9187806

  3. Topical (pour-on) ivermectin in the treatment of canine scabies.

    PubMed

    Paradis, M; de Jaham, C; Pagé, N

    1997-06-01

    The efficacy of a pour-on formulation of ivermectin at 500 micrograms/kg body weight applied on the dorsum on days 1 and 15 was evaluated in 90 dogs from a shelter, naturally infested with Sarcoptes scabiei. This very practical form of treatment was successful in eradicating scabies from this shelter.

  4. Une cause rare de plexopathie brachiale: une metastase d'un cancer du sein

    PubMed Central

    Maâroufi, Mustapha; Kamaoui, Imane; Boubbou, Meriem; Sqalli, Nadia; Tizniti, Siham

    2014-01-01

    Nous rapportons le cas d'une patiente de 50 ans ayant une histoire de cancer du sein et qui accuse une symptomatologie d'atteinte du plexus brachial. L'IRM montre une masse qui envahie le plexus brachial compatible avec une métastase. L'IRM est très utile pour le diagnostic et l'orientation thérapeutique des plexopathies brachiales chez les femmes présentant un cancer du sein PMID:25360196

  5. Cancer Statistics: Endometrial Cancer

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 60,050 % of All New Cancer Cases 3.6% Estimated Deaths in 2016 10,470 % of All Cancer ... of This Cancer : In 2013, there were an estimated 635,437 women living with endometrial cancer in ...

  6. Oral cancer

    MedlinePlus

    Cancer - mouth; Mouth cancer; Head and neck cancer; Squamous cell cancer - mouth; Malignant neoplasm - oral ... Oral cancer most commonly involves the lips or the tongue. It may also occur on the: Cheek lining Floor ...

  7. ANALYSIS OF DWPF SLUDGE BATCH 6 (MACROBATCH 7) POUR STREAM GLASS SAMPLES

    SciTech Connect

    Johnson, F.

    2012-01-20

    The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 6 (SB6), also referred to as Macrobatch 7 (MB7), in June 2010. SB6 is a blend of the heel of Tank 40 from Sludge Batch 5 (SB5), H-Canyon Np transfers and SB6 that was transferred to Tank 40 from Tank 51.1 SB6 was processed using Frit 418. Sludge is received into the DWPF Chemical Processing Cell (CPC) and is processed through the Sludge Receipt and Adjustment Tank (SRAT) and Slurry Mix Evaporator Tank (SME). The treated sludge slurry is then transferred to the Melter Feed Tank (MFT) and fed to the melter. During processing of each sludge batch, the DWPF is required to take at least one glass sample to meet the objectives of the Glass Product Control Program (GPCP) and to complete the necessary Production Records so that the final glass product may be disposed of at a Federal Repository. The DWPF requested various analyses of radioactive glass samples obtained from the melter pour stream during processing of SB6 as well as reduction/oxidation (REDOX) analysis of MFT samples to determine the impact of Argon bubbling. Sample analysis followed the Task Technical and Quality Assurance Plan (TTQAP) and an Analytical Study Plan (ASP). Four Pour Stream (PS) glass samples and two MFT slurry samples were delivered to the Savannah River National Laboratory (SRNL) from the DWPF. Table 1-1 lists the sample information for each pour stream glass sample. SB6 PS3 (S03472) was selected as the official pour stream sample for SB6 and full analysis was requested. This report details the visual observations of the as-received SB6 PS No.3 glass sample as well as results for the chemical composition, Product Consistency Test (PCT), radionuclide content, noble metals, and glass density. REDOX results will be provided for all four pour stream samples and vitrified samples of MFT-558 and MFT-568A. Where appropriate, data from other pour stream samples will be provided.

  8. 6 Common Cancers - Breast Cancer

    MedlinePlus

    ... Bar Home Current Issue Past Issues 6 Common Cancers - Breast Cancer Past Issues / Spring 2007 Table of Contents For ... her down. Photo: AP Photo/Brett Flashnick Breast Cancer Breast cancer is a malignant (cancerous) growth that ...

  9. 6 Common Cancers - Colorectal Cancer

    MedlinePlus

    ... Bar Home Current Issue Past Issues 6 Common Cancers - Colorectal Cancer Past Issues / Spring 2007 Table of Contents For ... colon cancer. Photo: AP Photo/Ron Edmonds Colorectal Cancer Cancer of the colon (large intestine) or rectum ( ...

  10. Que peut-on voir avec des neutrons? Une introduction pour des non spécialistes

    NASA Astrophysics Data System (ADS)

    Schweizer, J.

    2005-11-01

    Le neutron est une particule élémentaire qui a été découverte en 1932 par James Chadwick. Ses caractéristiques principales sont résumées dans le tableau I. Il a été utilisé pour la première fois par Clifford Shull en 1946 comme outil pour des expériences de diffusion. Cette technique s'est depuis constamment développée pour concerner tous les aspects de la matière condensée: physique, chimie, matériaux, biologie. Il s'agit d'un outil tout à fait exceptionnel car le neutron possède des propriétés uniques et particulièrement adaptées pour ces études.

  11. Effect of Storage Time of Extended-Pour and Conventional Alginate Impressions on Dimensional Accuracy of Casts

    PubMed Central

    Rohanian, Ahmad; Ommati Shabestari, Ghasem; Zeighami, Somayeh; Samadi, Mohammad Javad; Shamshiri, Ahmad Reza

    2014-01-01

    Objectives: Some manufacturers claim to have produced new irreversible hydro-colloids that are able to maintain their dimensional stability during storage. The present study evaluated the effect of storage time on dimensional stability of three alginates: Hydrogum 5, Tropicalgin and Alginoplast. Materials and Methods: In this experimental in-vitro trial, a total of 90 alginate impressions were made from a Dentoform model using Hydrogum 5, Tropicalgin and Alginoplast alginates. The impressions were stored in a sealed plastic bag without a damp paper towel for 0, 24, 48, 72 and 120 hours and then poured with type III dental stone. Cross-arch (facial of 6 to facial of 6 on the opposite side) and antero-posterior (distal of right first molar to the ipsilateral central incisor) measurements were made with a digital caliper on the casts. Data were analyzed by two-way and one-way ANOVA and Tukey’s post-hoc test (P<0.05). Results: Alginate type and the pouring time significantly affected the dimensional stability of alginate impressions (both Ps<0.001). Pouring of Hydrogum 5 impressions can be delayed for up to 120 hours without significant dimensional changes. Alginoplast impressions may be poured after 72 hours, but Tropicalgin should be poured immediately and the storage time should not be more than 24 hours. Conclusion: Immediate pouring of alginate impressions provides the highest accuracy in reproducing the teeth and adjacent tissues; however, this study demonstrated that pouring may be delayed for up to five days using extended-pour (Hydrogum 5) alginates. PMID:25628695

  12. Pour stream breakup of molten IFR (Integral Fast Reactor) metal fuel in sodium

    SciTech Connect

    Gabor, J.D.; Purviance, R.T.; Aeschlimann, R.W.; Spencer, B.W.

    1988-01-01

    Tests have been conducted in which the breakup behavior of kilogram quantities of molten uranium, uranium-zirconium alloy, and uranium-iron alloy pour streams in 600C sodium was studied. A sodium depth of less than 0.3 m was required for hydrodynamic breakup and freezing of 25-mm pour streams of uranium and uranium-zirconium alloy with up to 400C melt superheat. The breakup material was primarily in the form of filaments and sheets with a settled bed voidage on the order of 0.9. The uranium-iron alloy with 800C melt superheat exhibited similar behavior except a sodium depth somewhat greater than 0.3 m was required for breakup and freezing of the particles.

  13. Thyroid Cancer

    MedlinePlus

    ... are here Home > Types of Cancer > Thyroid Cancer Thyroid Cancer This is Cancer.Net’s Guide to Thyroid Cancer. Use the menu below to choose the ... social workers, and patient advocates. Cancer.Net Guide Thyroid Cancer Overview Statistics Medical Illustrations Risk Factors Symptoms ...

  14. Anal Cancer

    MedlinePlus

    ... are here Home > Types of Cancer > Anal Cancer Anal Cancer This is Cancer.Net’s Guide to Anal Cancer. Use the menu below to choose the ... social workers, and patient advocates. Cancer.Net Guide Anal Cancer Introduction Statistics Risk Factors and Prevention Screening ...

  15. Cancer Statistics: Pancreas Cancer

    MedlinePlus

    ... Series Pancreatic Cancer - Did you know that an estimated 46,000 Americans were diagnosed with pancreatic cancer ... at a Glance Show More At a Glance Estimated New Cases in 2016 53,070 % of All ...

  16. A new portable vibrator for plaster pouring: effect on the marginal fit at cylinder-abutment

    PubMed Central

    de ANDRADE, Pâmela Cândida Aires Ribas; LUTHI, Leonardo Flores; STANLEY, Kyle; CARDOSO, Antônio Carlos

    2012-01-01

    Objective The aim of this study was to test a new portable vibrator for plaster pouring (developed for this purpose), comparing the effect of its use on the accuracy of working cast of implant-supported restorations to the conventional vibrator. Material and methods From a master cast with 2 implants, 30 transfer moldings were made randomly and divided into three groups: Group I (GI): pouring performed in an outsourced dental laboratory with conventional plaster vibrator (10 casts), Group II (GII): pouring performed in the laboratory of the Federal University of Santa Catarina (UFSC) with conventional plaster vibrator (10 casts) and Group III (GIII): pouring performed with the portable vibrator fabricated for this study (10 casts). The position of the analogue and marginal adaptation of the infrastructure were verified by testing the single screw on the master model and on the working model. The measurement of misfit was blindly performed with a precision microscope and analyzing unit, Quadra-Check 200. The data were statistically analyzed by analysis of variance (ANOVA) and the Holm-Sidak test (α=0.05). Results Means±standard deviations were as follows: GI: 19.19±4.73 µm; GII: 21.72±5.41 µm; GIII: 13.5±2.39 µm (P<0.05), with GIII significantly lower as compared to the other groups. Conclusion Within the limitations of this study, it was concluded that a greater accuracy of working cast was achieved when a portable vibrator was used for casting molds. PMID:23138736

  17. Accuracy of Gypsum Casts after Different Impression Techniques and Double Pouring

    PubMed Central

    Silva, Stephania Caroline Rodolfo; Messias, Aion Mangino; Abi-Rached, Filipe de Oliveira; de Souza, Raphael Freitas; Reis, José Maurício dos Santos Nunes

    2016-01-01

    This study evaluated the accuracy of gypsum casts after different impression techniques and double pouring. Ten patients were selected and for each one it was obtained 5 partial putty/wash impressions with vinyl polysiloxane (VPS) material from teeth #13 to #16 with partial metal stock trays. The following techniques were performed: (1) one-step; two-step relief with: (2) PVC film; (3) slow-speed tungsten carbide bur and scalpel blade, (4) small movements of the tray and (5) without relief—negative control. The impressions were disinfected with 0.5% sodium hypochlorite for 10 minutes and stored during 110 and 230 minutes for the first and second pouring, respectively, with type IV gypsum. Three intra-oral lateral photographs of each patient were taken using a tripod and a customized radiographic positioner. The images were imported into ImageJ software and the total area of the buccal surface from teeth #13 to #16 was measured. A 4.0% coefficient of variance was criterion for using these measurements as Baseline values. The casts were photographed and analyzed using the same standardization for the clinical images. The area (mm2) obtained from the difference between the measurements of each gypsum cast and the Baseline value of the respective patient were calculated and analyzed by repeated-measures two way-ANOVA and Mauchly’s Sphericity test (α = 0.05). No significant effect was observed for Impression technique (P = 0.23), Second pouring (P = 0.99) and their interaction (P = 0.25). The impression techniques and double pouring did not influence the accuracy of the gypsum casts. PMID:27736967

  18. Développement d'une source EUV plasma laser pour la micro-lithographie

    NASA Astrophysics Data System (ADS)

    Segers, M.; Bougeard, M.; Caprin, E.; Ceccotti, T.; Chichmanian, F.; Descamps, D.; Haltebourg, P.; Hergott, J.-F.; Hulin, S.; Normand, D.; Schmidt, M.; Sublemontier, O.

    2003-06-01

    Le Groupe des Applications Plasma (GAP) du CEA à Saclay participe au projet national PREUVE du Réseau Micro- et Nano-Technologies. Ce projet a été lancé fin 1999 pour réunir et développer les compétences en France sur la lithographie dans l'extrême ultraviolet (LEUV). Au sein de PREUVE, notre objectif a été le développement d'une source plasma laser dans I'EUV autour de 13nm afin de contribuer à la réalisation d'un premier banc d'essai pour la lithographie (BEL) en Europe. Afin de réaliser cette source, nous utilisons un plasma émetteur qui est produit par l'interaction d'un laser de type Nd :YAG sur un jet de gouttelettes de xénon. A la fin du projet PREUVE, cette source satisfait les principales spécifications et répond en particulier aux besoins en flux de photons EUV pour réaliser des tests d'insolation EUV avec le banc d'essai. Suite à ces résultats prometteurs, nous démarrons actuellement un projet industriel EXULITE avec nos partenaires du CEA, d'Alcatel et de Thalès sur le développement d'une source EUV de puissance pour des machines de lithographie de production. Ce projet se terminera en 2005.

  19. SPERTI Reactor Pit Building (PER605) under construction. Poured concrete foundation ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    SPERT-I Reactor Pit Building (PER-605) under construction. Poured concrete foundation will enclosure a "Pit" into which the reactor vessel will be placed. Steel framework has been erected. To left of view is instrument cell (PER-606), constructed of concrete block. Photographer: R.G. Larsen. Date: April 22, 1955. INEEL negative no. 55-1000 - Idaho National Engineering Laboratory, SPERT-I & Power Burst Facility Area, Scoville, Butte County, ID

  20. Midazolam intranasal pour arrêter les convulsions en contexte extra-hospitalier

    PubMed Central

    Zelcer, Michal; Goldman, Ran D.

    2016-01-01

    Résumé Question Il arrive parfois que des parents se présentent à ma clinique après que leur enfant eut eu une crise convulsive et qu’une deuxième crise ait lieu à la clinique. En attendant le transfert à l’hôpital, existe-t-il des moyens de mettre fin aux convulsions sans devoir obtenir l’accès intraveineux à la clinique? Réponse Le diazépam par voie intraveineuse est depuis de nombreuses années un traitement de première intention pour mettre fin aux crises convulsives chez les enfants. Il est aussi possible d’administrer le médicament par les voies intramusculaire, rectale ou buccale, mais ces voies d’administration s’accompagnent de plusieurs inconvénients. D’autres données probantes laissent croire que la voie intranasale est rapide et efficace chez les enfants, et le midazolam continue de se montrer prometteur pour mettre fin aux crises convulsives. Doté d’un bon profil d’innocuité, le midazolam intranasal s’utilise en clinique et en contexte préhospitalier pour arrêter les convulsions chez les enfants.

  1. Evaluation of materials and surface treatments for the DWPF melter pour spout bellows protective liner

    SciTech Connect

    Imrich, K.J.; Bickford, D.F.; Wicks, G.G.

    1997-06-27

    A study was undertaken to evaluate a variety of materials and coatings for the DWPF pour spout bellows liner. The intent was to identify materials that would minimize or eliminate adherence of glass on the bellows liner wall and help minimize possible pluggage during glass pouring operations in DWPF. Glass has been observed adhering to the current bellow`s liner, which is made of 304L stainless steel. Materials were identified which successfully allowed molten glass to hit these surfaces and not adhere. Results of this study suggest that if these materials are used in the pouring system glass could still fall into the canister without appreciable plugging, even if an unstable glass stream is produced. The materials should next be evaluated under the most realistic DWPF conditions possible. Other findings of this study include the following: (1) increasing coupon thickness produced a favorable increase in the glass sticking temperature; (2) highly polished surfaces, with the exception of the oxygen-free copper coupon coated with Armoloy dense chromium, did not produce a significant improvement in the glass sticking temperature, increasing angle of contact of the coupon to the falling glass did not yield a significant performance improvement; (3) electroplating with gold and silver and various diffusion coatings did not produce a significant increase in the glass sticking temperature. However, they may provide added oxidation and corrosion resistance for copper and bronze liners. Boron nitride coatings delaminated immediately after contact with the molten glass.

  2. Acaricide efficiency of amitraz/cypermethrin and abamectin pour-on preparations in game.

    PubMed

    Van Der Merwe, J S; Smit, F J; Durand, A M; Krüger, L P; Michael, L M

    2005-12-01

    The efficacy of an amitraz/cypermethrin pour-on preparation (1% w/v each) was tested against natural tick infestations of buffaloes, eland and blesbok in three separate trials. The eland were also treated with a 0.02% abamectin (w/v) acaricidal pour-on preparation. The amitraz/cypermethrin pour-on was effective against Amblyomma hebraeum, Rhipicephalus evertsi evertsi, Rhipicephalus appendiculatus and Hyalomma marginatum rufipes on the buffaloes. Both acaricides were effective against R. appendiculatus and Rhipicephalus (Boophilus) decoloratus in the eland. The amitraz/cypermethrin acaricide was effective against R. (Boophilus) decoloratus in the blesbok. Ticks can cause damage to the skins, secondary infections, abscesses, anaemia, loss of condition, tick toxicosis and act as vectors of infectious diseases. Introduction of hosts and/or ticks from endemic to non-endemic areas because of translocation of game, may lead to severe losses. The pouron acaricides tested were effective against natural tick infestations and should always be used according to the manufacturer's instructions and efficacy claims.

  3. Instrumentation pour la spectroscopie laser sur faisceau d'ions rapides

    NASA Astrophysics Data System (ADS)

    Bazin, Marc

    Devant l'emergence des technologies exploitant l'infiniment petit, la spectroscopie atomique et moleculaire devient de plus en plus incontournable pour comprendre precisement les mecanismes quantiques impliques dans l'interaction des molecules. C'est le cas notamment de la nanotechnologie, de la dynamique reactionnelle des gaz a effet de serre ou simplement de l'identification des molecules constituant certains objets de l'astrophysique. Bien qu'un travail considerable soit deja accompli pour comprendre la dissociation ou la formation des molecules simples, il reste a vaincre la complexite des mecanismes impliques lorsque les molecules possedent plus de trois noyaux. Parmi les rares techniques de spectroscopie a tres haute resolution (jusqu'a la structure hyperfine), la spectroscopie laser sur faisceaux d'ions rapides est une methode experimentale eprouvee depuis trois decennies environ. Cette methode spectroscopique fournit des resultats comptant parmi les meilleurs pour obtenir des constantes moleculaires precises et permettre la reduction du spectre moleculaire. Une particularite remarquable de notre instrument est la possibilite d'enregistrer le signal de fragmentation moleculaire par laser via les etats de predissociation de la molecule etudiee. Notre contribution a ete d'ameliorer et de moderniser l'equipement existant. Nous avons augmente la resolution spectrale de notre instrument. Nous avons atteint notre principal objectif, a savoir, la possibilite d'acquerir des spectres selon deux modes : par detection du signal synchronisee sur le faisceau laser module en frequence ou par detection du signal directement par comptage. Cette derniere methode est une premiere sur ce type d'instrument et son principal interet a ete d'obtenir une meilleure mesure de l'elargissement de raie. Nous sommes parvenus a mettre clairement en evidence l'elargissement de raie avec la puissance laser en utilisant la methode de detection par comptage direct. La fluorescence induite par

  4. Elaboration de nouvelles approches micromecaniques pour l'optimisation des performances mecaniques des materiaux heterogenes

    NASA Astrophysics Data System (ADS)

    Aboutajeddine, Ahmed

    Les modeles micromecaniques de transition d'echelles qui permettent de determiner les proprietes effectives des materiaux heterogenes a partir de la microstructure sont consideres dans ce travail. L'objectif est la prise en compte de la presence d'une interphase entre la matrice et le renforcement dans les modeles micromecaniques classiques, de meme que la reconsideration des approximations de base de ces modeles, afin de traiter les materiaux multiphasiques. Un nouveau modele micromecanique est alors propose pour tenir compte de la presence d'une interphase elastique mince lors de la determination des proprietes effectives. Ce modele a ete construit grace a l'apport de l'equation integrale, des operateurs interfaciaux de Hill et de la methode de Mori-Tanaka. Les expressions obtenues pour les modules globaux et les champs dans l'enrobage sont de nature analytique. L'approximation de base de ce modele est amelioree par la suite dans un nouveau modele qui s'interesse aux inclusions enrobees avec un enrobage mince ou epais. La resolution utilisee s'appuie sur une double homogeneisation realisee au niveau de l'inclusion enrobee et du materiau. Cette nouvelle demarche, permettra d'apprehender completement les implications des approximations de la modelisation. Les resultats obtenus sont exploites par la suite dans la solution de l'assemblage de Hashin. Ainsi, plusieurs modeles micromecaniques classiques d'origines differentes se voient unifier et rattacher, dans ce travail, a la representation geometrique de Hashin. En plus de pouvoir apprecier completement la pertinence de l'approximation de chaque modele dans cette vision unique, l'extension correcte de ces modeles aux materiaux multiphasiques est rendue possible. Plusieurs modeles analytiques et explicites sont alors proposee suivant des solutions de differents ordres de l'assemblage de Hashin. L'un des modeles explicite apparait comme une correction directe du modele de Mori-Tanaka, dans les cas ou celui ci echoue a

  5. Prostate Cancer

    MedlinePlus

    ... version of this page please turn Javascript on. Prostate Cancer What is Prostate Cancer? How Tumors Form The body is made up ... the Escape (Esc) button on your keyboard.) How Prostate Cancer Occurs Prostate cancer occurs when a tumor forms ...

  6. Esophageal Cancer

    MedlinePlus

    ... esophagus, and chest wall Lung Cancer Esophageal Cancer Gastroesophageal Reflux Disease Barrett’s Esophagus Chest Wall Tumors Mediastinal Tumors ... Section Navigation Select Topic Lung Cancer Esophageal Cancer Gastroesophageal Reflux Disease Barrett’s Esophagus Chest Wall Tumors Mediastinal Tumors ...

  7. Breast Cancer

    MedlinePlus

    ... version of this page please turn Javascript on. Breast Cancer What is Breast Cancer? How Tumors Form The body is made up ... tumors form in the breast tissue. Who Gets Breast Cancer? Breast cancer is one of the most common ...

  8. Ovarian Cancer

    MedlinePlus

    Ovarian Cancer There are five main types of cancer that affect a woman’s reproductive organs: cervical, ovarian, uterine, ... rare fallopian tube cancer.) This fact sheet about ovarian cancer is part of the Centers for Disease Control ...

  9. Cancer Statistics

    MedlinePlus

    ... cancer statistics across the world. U.S. Cancer Mortality Trends The best indicator of progress against cancer is ... the number of cancer survivors has increased. These trends show that progress is being made against the ...

  10. Testicular cancer

    MedlinePlus

    Cancer - testes; Germ cell tumor; Seminoma testicular cancer; Nonseminoma testicular cancer ... The exact cause of testicular cancer is unknown. Factors that may ... increases if he has: Abnormal testicle development Exposure ...

  11. Lung cancer

    SciTech Connect

    Aisner, J.

    1985-01-01

    This book contains 13 chapters. Some of the chapter titles are: The Pathology of Lung Cancer; Radiotherapy for Non-Small-Cell Cancer of the Lung; Chemotherapy for Non-Small-Cell Lung Cancer; Immunotherapy in the Management of Lung Cancer; Preoperative Staging and Surgery for Non-Small-Cell Lung Cancer; and Prognostic Factors in Lung Cancer.

  12. 6 Common Cancers - Lung Cancer

    MedlinePlus

    ... Home Current Issue Past Issues 6 Common Cancers - Lung Cancer Past Issues / Spring 2007 Table of Contents ... for Desperate Housewives. (Photo ©2005 Kathy Hutchins / Hutchins) Lung Cancer Lung cancer causes more deaths than the ...

  13. Immunoscore in Rectal Cancer

    ClinicalTrials.gov

    2016-03-28

    Cancer of the Rectum; Neoplasms, Rectal; Rectal Cancer; Rectal Tumors; Rectal Adenocarcinoma; Melanoma; Breast Cancer; Renal Cell Cancer; Lung Cancer; Bladder Cancer; Head and Neck Cancer; Ovarian Cancer; Thyroid Cancer

  14. What Causes Cancer?

    MedlinePlus

    ... articles window. My Saved Articles » My ACS » What Causes Cancer? Cancer is a complex group of diseases with ... cancer. Learn About Cancer Topics Cancer Basics What Causes Cancer? Breast Cancer Colon/Rectum Cancer Lung Cancer Prostate ...

  15. [The Bulletin du cancer: the years before the First World War].

    PubMed

    Bernaudin, Jean-François

    2013-12-01

    Three years after its founding in 1909, the Association française pour l'étude du cancer is a major scientific society developing transdisciplinary debates particularly on innovative therapeutics in cancer, such as the developing use of radium. The Association at that time assembles together all the French medical elite. Reading the Bulletin offers a clear view of the brilliant monthly debates. First World War stopped the life of the Association for four years. After this break, the set up of dedicated centers for cancer treatment was responsible for a major turn in the Association's life.

  16. Quality of Life in Patients Undergoing Radiation Therapy for Primary Lung Cancer, Head and Neck Cancer, or Gastrointestinal Cancer

    ClinicalTrials.gov

    2016-04-19

    Anal Cancer; Colorectal Cancer; Esophageal Cancer; Extrahepatic Bile Duct Cancer; Gallbladder Cancer; Gastric Cancer; Head and Neck Cancer; Liver Cancer; Lung Cancer; Pancreatic Cancer; Small Intestine Cancer

  17. Plasma Sprayed Pour Tubes and Other Melt Handling Components for Use in Gas Atomization

    SciTech Connect

    Byrd, David; Rieken, Joel; Heidloff, Andy; Besser, Matthew; Anderson, Iver

    2011-04-01

    Ames Laboratory has successfully used plasma sprayed ceramic components made from yttria stabilized zirconia as melt pouring tubes for gas atomization for many years. These tubes have proven to be strong, thermal shock resistant and versatile. Various configurations are possible both internally and externally. Accurate dimensions are achieved internally with a machined fugitive graphite mandrel and externally by diamond grinding. The previous study of the effect of spray parameters on density was extended to determine the effect of the resulting density on the thermal shock characteristics on down-quenching and up-quenching. Encouraging results also prompted investigation of the use of plasma spraying as a method to construct a melt pour exit stopper that is mechanically robust, thermal shock resistant, and not susceptible to attack by reactive melt additions. The Ames Laboratory operates two close-coupled high pressure gas atomizers. These two atomizers are designed to produce fine and coarse spherical metal powders (5{mu} to 500{mu} diameter) of many different metals and alloys. The systems vary in size, but generally the smaller atomizer can produce up to 5 kg of powder whereas the larger can produce up to 25 kg depending on the charge form and density. In order to make powders of such varying compositions, it is necessary to have melt systems capable of heating and containing the liquid charge to the desired superheat temperature prior to pouring through the atomization nozzle. For some metals and alloys this is not a problem; however for some more reactive and/or high melting materials this can pose unique challenges. Figure 1 is a schematic that illustrates the atomization system and its components.

  18. Development of a complex type of pour point-viscosity depressant and infrared spectrum research

    SciTech Connect

    Zhang Fusheng; Wang Biao

    1995-11-01

    EMS, a complex type of pour point-viscosity depressant for crudes, is composed of EVA, MVA [molecular structure shown for both in the paper] and Surfactant. After adding EMS into the crudes, a very nice result in reducing pour point and viscosity for Daqing, Jianghan and Jidong crudes was obtained. From the research result of infrared spectroscopy of the interactions between EMS or its components and wax or mixture of resin and asphaltene isolated from three crudes, it has been shown that the area ratio of the double absorption peaks of 719 cm{sup {minus}1} and 729 cm{sup {minus}1} or 1,368 cm{sup {minus}1} and 1,378 cm{sup {minus}1} changed remarkably after EMS or its components were added into wax. It can be inferred that the cocrystallization probably happened between the EMS or its components and the wax. The position of the 4,000--3,000 cm{sup {minus}1} infrared absorption peak of the mixture of resin and asphaltene moved to the lower wavenumber, and the ratio of the area of 1,373 cm{sup {minus}1} absorption peak (methyl) to the combination area of 748, 810 and 871 cm{sup {minus}1} absorption peak (aromatics) increased remarkably. It can be inferred that the pour point-viscosity depressant molecules destroyed the original hydrogen bonds and overlapping of the aromatic ring planes among resin and asphaltene molecules to form a new cubic molecular structure and new hydrogen bonds with the results the viscosity of crude oil will be reduced.

  19. Traitement par plasma thermique d'une liqueur caustique pour la destruction des cyanures

    NASA Astrophysics Data System (ADS)

    Fortin, Luc

    L'objectif principal de cette recherche est d'evaluer la possibilite de traiter le lixiviat de brasques usees produit par le procede LCL&L (Lixiviation a bas caustique et chaulage) par contact direct avec un jet de plasma thermique. L'utilisation d'un chalumeau au plasma permet d'eliminer les problemes de reaction avec les produits de combustion relies a l'utilisation de chalumeaux conventionnels (e.g. carbonatation du NaOH en Na2CO3). Le fait de se servir de ce type de chalumeau en mode submerge pour le traitement d'une solution liquide constitue l'originalite du projet. Les essais effectues dans le cadre de ce travail experimental sont realises a l'echelle banc d'essai dans un premier temps. Ils visent a determiner le taux de decomposition des cyanures contenus dans le lixiviat sous des conditions de plasma thermique en fonction de differents parametres et a faire la mise a l'echelle d'un reacteur pilote. La puissance electrique fournie au chalumeau, la temperature et la pression d'operation, le point d'addition d'eau, le volume de lixiviat traite et l'addition de peroxyde d'hydrogene (H2O2) comme co-reactif ont tous un impact sur le taux de destruction des cyanures trouve. Sous toutes les conditions etudiees, le reacteur plasma offre un taux de destruction plus rapide qu'un reacteur agite sous pression pour une meme concentration en cyanures. Ainsi, la comparaison de la constante cinetique obtenue pour le reacteur agite avec une constante similaire pour le reacteur plasma (pente du graphique -ln(C/C0) en fonction du temps) est de 0.04x10-3 s-1 vs 0.59x10-3 s-1 a 100°C et de 1.85x10-3 s-1' vs 3x10 -3 s-1s a 170°C. Ces resultats confirment que le plasma joue un role important sur la decomposition des cyanures et qu'il contribue a en augmenter le taux de destruction. Suite aux connaissances acquises sur le banc d'essai, un reacteur pilote est concu. Un chalumeau au plasma d'une puissance de 60 kW-150 kW et fonctionnant avec l'air comme gaz plasmagene y est

  20. Explorer : des clés pour mieux comprendre la matière

    ScienceCinema

    None

    2016-07-12

    Le LHC va-t-il bouleverser les théories de l'infiniment petit ? Les physiciens aimeraient que l'accélérateur fasse trembler le modèle standard. Cette théorie des particules élémentaires et des forces laisse de nombreuses zones d'ombre. Le LHC et ses expériences ont été conçus pour les éclairer.

  1. Matériaux pour la dépollution des gaz d'échappement automobile

    NASA Astrophysics Data System (ADS)

    Mouaddib-Moral, N.; Gauthier, C.

    2002-04-01

    Les premières législations antipollution ont été mises en place suite à la détection, aux Etats Unis plus particulièrement en Californie, du smog photochimique et des pluies acides, néfastes pour la faune et la flore. Les estimations de la contribution de l'automobile aux émissions de composés, considérés comme précurseurs de ces phénomènes, ont été suffisantes pour provoquer la mise en place de normes draconiennes en matière d'émissions automobiles. Les matériaux catalytiques ont été évalués en tant que solution possible pour réduire les émissions à l'échappement. En Europe, l'utilisation des catalyseurs trois voies a été généralisée sur les véhicules essence fonctionnant à richesse stoechiométrique à partir de 1993. Une nouvelle génération de catalyseurs appelée piège à oxydes d'azote (NOx) est maintenant nécessaire pour le post-traitement des gaz d'échappement des motorisations à essence fonctionnant en mélange pauvre (combustion en présence d'un excès d'oxygène) pour diminuer la consommation et par conséquent réduire les émissions du CO2 connu pour son impact sur l'effet de serre. La dépollution des moteurs diesel via un catalyseur d'oxydation a été généralisée en Europe depuis 1996. La sévérisation des normes européennes impose pour les moteurs diesel le recours à des matériaux spécifiques pour le traitement des oxydes d'azotes et des particules par l'intermédiaire de filtres à particules dont l'efficacité de filtration est supérieure à 95%, mais doivent subir des régénérations périodiques.

  2. Dielectric and electrophoretic properties of wax dispersions in the presence of pour depressants

    SciTech Connect

    Agaev, S.G.; Taranova, L.V.

    1987-05-01

    It appeared to be of interest to evaluate the depressant efficiency of additives on the basis of results obtained in studying electrophoretic and dielectric properties of wax-containing systems when these additives are present. The electrical properties of dispersion of a petroleum paraffin wax (mp 56/sup 0/C) in n-heptane were investigated in the presence of the commercial pour depressants PMD D (specification TU 01-270-68) (a polymethyacrylate) and AzNII (GOST (All-Union State Standard) 8443-57) (condensation product from chlorinated wax and naphthalene), and two ester-type additives synthesized in the laboratory: TyumII 79, which is bis(diacylpentarythritol 4-nitrophthalate) and TyumII 222, which is bis(diacylpentarythritol succinate). The pour depressants TyumII 79 and TyumII 222 are products obtained by condensation of C/sub 21/-C/sub 26/ synthetic fatty acids, pentaerythritol, and a dicarboxylic acid (4-nitrophthalic acid or succinic acid), with component ratio 2.1:1:1 and 2.1:1:0.55, respectively.

  3. Suppléments de zinc pour la gastroentérite aiguë

    PubMed Central

    Goldman, Ran D.

    2013-01-01

    Résumé Question La gastroentérite accompagnée de diarrhée est un problème fréquent chez les enfants et peut entraîner une déshydratation, de la morbidité et, dans certains pays, une mortalité importantes. Y a-t-il lieu de donner des suppléments de zinc dans de tels cas? Réponse Le zinc se retrouve dans divers aliments et, au Canada, certains sont enrichis de zinc. Les suppléments de zinc sont éprouvés comme étant une mesure sûre et efficace pour raccourcir la durée des maladies accompagnées de diarrhée et possiblement réduire d’autres complications, dont la mort. Quoique l’Organisation mondiale de la Santé recommande une dose quotidienne de zinc pendant 10 à 14 jours pour prendre en charge la diarrhée aiguë chez l’enfant, les enfants canadiens qui s’alimentent normalement n’ont pas besoin de tels suppléments.

  4. La dermoscopie pour la détection des mélanomes en pratique familiale

    PubMed Central

    Herschorn, Andrea

    2012-01-01

    Résumé Objectif Évaluer l’exactitude diagnostique et l’utilité clinique de la dermoscopie pour la détection de mélanomes en pratique familiale. Sources des données Nous avons fait une recension dans les bases de données Ovid MEDLINE (de 1946 à juin 2011), EMBASE, PubMed et Cochrane à l’aide des expressions suivantes en anglais: dermoscopy, dermatoscopy, epiluminescence microscopy, family practice, general practice, primary health care, melanoma, skin neoplasms et pigmented nevus. Pour être prises en considération, les études devaient être des articles de recherche primaire ayant pour sujets des médecins de famille, ainsi que la formation en dermoscopie et son utilisation en tant qu’intervention. La recherche a produit 4 articles qui répondaient aux critères d’inclusion et présentaient des données probantes de niveau I selon la définition du Groupe d’étude canadien sur les soins de santé préventifs. Message principal Dans le milieu de la pratique familiale, la dermoscopie a une sensibilité plus élevée que l’examen à l’œil nu pour la détection des mélanomes sans avoir, généralement, une spécificité moins grande. La dermoscopie aide aussi à accroître le degré de confiance des médecins de famille dans leur diagnostic préliminaire des lésions. L’utilisation de la dermoscopie plutôt que l’examen à l’œil nu augmente la probabilité qu’une lésion jugée cancéreuse le soit de fait et qu’une lésion jugée bénigne le soit en réalité. Conclusion Il est démontré que la dermoscopie est un outil utile et relativement peu coûteux pour la détection des mélanomes en pratique familiale. Cette technique rend les médecins de famille plus confiants dans l’exactitude de leurs demandes de consultations auprès de dermatologues et contribue à diminuer les biopsies inutiles. La dermoscopie peut se révéler plus particulièrement utile dans l’examen des patients à risque élevé de mélanomes, étant donn

  5. Cancer - penis

    MedlinePlus

    ... an organ that makes up part of the male reproductive system. Causes The exact cause is unknown. Smegma, a ... Squamous cell cancer - penis Images Male reproductive anatomy Male reproductive system References National Comprehensive Cancer Network. National Comprehensive Cancer ...

  6. Skin Cancer

    MedlinePlus

    ... States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, ... If not treated, some types of skin cancer cells can spread to other tissues and organs. Treatments ...

  7. Esophageal cancer

    MedlinePlus

    Cancer - esophagus ... Esophageal cancer is not common in the United States. It occurs most often in men over 50 years old. There are two main types of esophageal cancer: squamous cell carcinoma and adenocarcinoma. These two types ...

  8. Lung Cancer

    MedlinePlus

    ... version of this page please turn Javascript on. Lung Cancer What is Lung Cancer? How Tumors Form The body is made ... button on your keyboard.) Two Major Types of Lung Cancer There are two major types of lung ...

  9. Anal Cancer

    MedlinePlus

    ... saved articles window. My Saved Articles » My ACS » Anal Cancer Download Printable Version [PDF] » Whether you (or ... the topics below to get started. What Is Anal Cancer? What is anal cancer? What are the ...

  10. Ovarian Cancer

    MedlinePlus

    ... deaths than other female reproductive cancers. The sooner ovarian cancer is found and treated, the better your chance for recovery. But ovarian cancer is hard to detect early. Women with ovarian ...

  11. Breast cancer

    MedlinePlus

    ... drink per day (women at high risk for breast cancer should not drink alcohol at all) ... Services Task Force. Risk assessment, genetic counseling, and ... cancer treatment. Bethesda, MD: National Cancer Institute. Date ...

  12. Bone Cancer

    MedlinePlus

    Cancer that starts in a bone is uncommon. Cancer that has spread to the bone from another ... more common. There are three types of bone cancer: Osteosarcoma - occurs most often between ages 10 and ...

  13. Stomach cancer

    MedlinePlus

    Cancer - stomach; Gastric cancer; Gastric carcinoma; Adenocarcinoma of the stomach ... Several types of cancer can occur in the stomach. The most common type is called adenocarcinoma. It starts from one of the cell ...

  14. Uterine Cancer

    MedlinePlus

    ... is pregnant. There are different types of uterine cancer. The most common type starts in the endometrium, the lining of the uterus. This type of cancer is sometimes called endometrial cancer. The symptoms of ...

  15. Stomach Cancer

    MedlinePlus

    ... with stomach acid and helps digest protein. Stomach cancer mostly affects older people - two-thirds of people ... Smoke cigarettes Have a family history of stomach cancer It is hard to diagnose stomach cancer in ...

  16. Cancer Moonshot

    Cancer.gov

    The Cancer Moonshot, led by Vice President Joe Biden, will marshal resources across the federal government to speed progress in cancer research and lead to improved cancer prevention, detection, and treatment.

  17. Thyroid Cancer

    MedlinePlus

    ... body work normally. There are several types of cancer of the thyroid gland. You are at greater ... imaging tests, and a biopsy to diagnose thyroid cancer. Treatment depends on the type of cancer you ...

  18. 6 Common Cancers - Prostate Cancer

    MedlinePlus

    ... Bar Home Current Issue Past Issues 6 Common Cancers - Prostate Cancer Past Issues / Spring 2007 Table of Contents For ... early screening. Photo: AP Photo/Danny Moloshok Prostate Cancer The prostate gland is a walnut-sized structure ...

  19. Le potentiel de l'asteroseismologie pour les etoiles sous-naines de type B

    NASA Astrophysics Data System (ADS)

    Charpinet, Stephane

    L'objectif principal de cette thèse consiste à évaluer les possibilités que les étoiles sous naines de type B, aussi appelées sdB, puissent développer des variations de luminosité engendrées par des phénomènes de pulsations. Dans la mesure où, au commencement de cette étude, les sdB ne sont pas connues pour montrer ce type de comportement, notre approche s'effectue exclusivement sur des bases théoriques visant à déterminer, par le calcul, si ces étoiles ont le potentiel pour devenir instables. Le cas échéant, il s'agira d'évaluer quels sont les résultats susceptibles d'émerger d'un sondage de la structure interne de ces étoiles avec les méthodes de l'astéroséismologie. Après avoir introduit le contexte et les outils théoriques nécessaires à ce projet (théorie des pulsations stellaires et modèles d'étoiles sous-naines de type B), la démarche passe obligatoirement par une étude exhaustive des propriétés des modes de pulsation dans ces étoiles. Nous l'avons entreprise de manière systématique afin d'évaluer et de comprendre les comportements des oscillations en fonction des différents paramètres physiques qui caractérisent une sdB. Par souci de complétude, nous étudions également les rapports qu'entretiennent évolution et périodes de pulsation au cours de la phase sdB. Par la suite, fort des connaissances nouvellement acquises, nous nous lançons dans l'étude de la stabilité des modes d'oscillation, l'objectif étant d'identifier, le cas échéant, un mécanisme capable de déstabiliser, dans certaines conditions, une fraction de ces étoiles. Par cette approche, nous déterminons qu'un mécanisme κ associé à une région d'ionisation partielle de l'élément fer agit efficacement dans l'enveloppe des sdB si, toutefois, le fer y est présent en quantités extra- solaires. Nous montrons alors que des processus de diffusion, déjà fortement suspectes d'exister dans ces étoiles, sont en mesure d'accumuler des quantit

  20. Integrated Molecular Profiling in Advanced Cancers Trial

    ClinicalTrials.gov

    2016-08-19

    Breast Cancer; Non-small Cell Lung Cancer; Colorectal Cancer; Genitourinary Cancer; Pancreatobiliary Gastrointestinal Cancer; Upper Aerodigestive Tract Cancer; Gynecological Cancers; Melanoma Cancers; Rare Cancers; Unknown Primary Cancers

  1. Cancer Research Repository for Individuals With Cancer Diagnosis and High Risk Individuals.

    ClinicalTrials.gov

    2014-12-12

    Pancreatic Cancer; Thyroid Cancer; Lung Cancer; Esophageal Cancer; Thymus Cancer; Colon Cancer; Rectal Cancer; GIST; Anal Cancer; Bile Duct Cancer; Duodenal Cancer; Gallbladder Cancer; Gastric Cancer; Liver Cancer; Small Intestine Cancer; Peritoneal Surface Malignancies; Familial Adenomatous Polyposis; Lynch Syndrome; Bladder Cancer; Kidney Cancer; Penile Cancer; Prostate Cancer; Testicular Cancer; Ureter Cancer; Urethral Cancer; Hypopharyngeal Cancer; Laryngeal Cancer; Lip Cancer; Oral Cavity Cancer; Nasopharyngeal Cancer; Oropharyngeal Cancer; Paranasal Sinus Cancer; Nasal Cavity Cancer; Salivary Gland Cancer; Skin Cancer; CNS Tumor; CNS Cancer; Mesothelioma

  2. Hernie inguinale en Afrique subsaharienne: quelle place pour la technique de Shouldice?

    PubMed Central

    Traoré, Drissa; Diarra, Lasseny; Coulibaly, Bréhima; Bengaly, Brehima; Togola, Birama; Traoré, Alhassane; Traoré, Hamady; Ongoïba, Nouhoum; Sissoko, Filifing; Koumaré, Abdel Karim

    2015-01-01

    L'objectif était d’étudier l'aspect épidémio-clinique et thérapeutique de la hernie inguinale selon la technique de Shouldice. Nous avons réalisé une étude rétrospective, portant sur les patients opérés pour hernie inguinale selon la technique de Shouldice dans le service de chirurgie B du CHU du Point G, Bamako, Mali. Il a été enregistré 225patients opérés selon la technique de Shouldice. L’âge moyen était de 49 ans +/- 17,7. Il y avait 90,7% (204) hommes soit un sex-ratio de 9,7. Les cultivateurs, les ménagères et les ouvriers ont représenté 51,1% (115). Dans 75,2% (169) les patients ont consulté pour tuméfaction inguinale. En pré opératoire, la hernie était compliquée chez 82 (36,4%) patients dont 24 cas de récidive. L’étranglement herniaire a été la principale complication pré opératoire 58,5% (48/82). Les suites opératoires à un an ont été simples chez 94,2%(210) des patients; elles étaient marquées par 8 cas de récidive, 4 cas de névralgie, 2 cas d'atrophie testiculaire, 1 cas de chéloïde. La technique de Shouldice est la technique de choix pour la cure de la hernie inguinale dans les pays en voie de développement à cause du bon résultat et son coût peu onéreux par rapport aux autres techniques utilisant des dispositifs médicaux. PMID:26664551

  3. "Paraffin wax-overlay of pour plate", a method for the isolation and enumeration of purple non-sulfur bacteria.

    PubMed

    Archana, A; Sasikala, Ch; Ramana, Ch V; Arunasri, K

    2004-12-01

    A modification of pour plate technique with an overlay of wax was used for isolation and enumeration of purple non-sulfur bacteria (PNSB) with equal efficiency as that of agar shake culture. The total count of PNSB ranged from 10(5)-10(8) CFU g dry soil(-1) and belonged to the genera of Rhodobacter, Rhodopseudomonas, Rhodocista and Rubrivivax.

  4. A laboratory study of changes in vertical dimension using a compression molding and a pour resin technique.

    PubMed

    Dukes, B S; Fields, H; Olson, J W; Scheetz, J P

    1985-05-01

    A controlled investigation was conducted to compare the increase in vertical dimension of complete dentures after processing with a compression molding technique and with a pour resin technique. The smallest increase in vertical dimension of occlusion was obtained with the compression molding technique.

  5. "Tele Pour Tous" in Rural Ivory Coast: Audience, Impact, Perceptions: Report of Two Surveys Conducted in January and April, 1977.

    ERIC Educational Resources Information Center

    Etaix, Mireille; Lenglet, Frans

    This report presents the results of two surveys conducted in January and April 1977 in the Ivory Coast to assess the impact of the "Tele Pour Tous" programs on rural audiences in terms of awareness, learning, and action. Descriptions of the socio-economic characteristics of the audience and their viewing patterns were sought, and attempts were…

  6. Approche pour les comportements sexuels inappropriés chez des personnes atteintes de démence

    PubMed Central

    Joller, Petra; Gupta, Neeraj; Seitz, Dallas P.; Frank, Christopher; Gibson, Michelle; Gill, Sudeep S.

    2013-01-01

    Résumé Objectif Présenter aux médecins de famille une mise à jour sur l’approche au diagnostic et à la prise en charge des comportements sexuels inappropriés (CSI) chez les personnes atteintes de démence. Sources des données On a fait une recherche dans MEDLINE et EMBASE pour cerner des articles pertinents publiés avant juin 2012. On n’a trouvé aucune étude de niveau I; la plupart des articles fournissaient des données probantes de niveau III. Message principal Les comportements sexuels inappropriés sont fréquents chez les personnes atteintes de démence. Divers facteurs (p. ex., culturels, religieux, perspectives sociétales de la sexualité gériatrique, questions médicolégales) pourraient compliquer l’évaluation de tels comportements et doivent être pris en compte pour permettre une prise en charge appropriée à chaque patient. Il existe des outils pour documenter les CSI. Des interventions créatives non pharmacologiques pour les CSI pourraient être efficaces quand elles sont adaptées à chaque patient. Certaines pharmacothérapies (p. ex., antidépresseurs, antiandrogènes, antipsychotiques et anticonvulsifs) ont été proposées pour les symptômes qui ne répondent pas aux interventions non pharmacologiques. Par ailleurs, les données probantes à l’appui des traitements à l’aide de médicaments sont limitées, les effets secondaires demeurent un aspect important à considérer et il est incertain s’ils devraient être utilisés comme traitement de première ou de deuxième intention. Conclusion Quoiqu’il n’y ait pas d’algorithme de traitements empiriquement établi pour les CSI reliés à la démence, les ouvrages actuels offrent certaines données probantes concernant diverses thérapies pharmacologiques et non pharmacologiques. Des recherches de grande qualité plus approfondies sont nécessaires de toute urgence pour guider les médecins de famille qui prennent en charge des patients qui ont des CSI reliés à la

  7. Analyse de L'ancrage des Vortex Intergrains pour le Yttrium BARYUM(2) CUIVRE(3) OXYGENE(7) Polycristallin

    NASA Astrophysics Data System (ADS)

    Fournier, Patrick

    Le Modele de l'Etat Critique Generalise (MECG) est utilise pour decrire les proprietes magnetiques et de transport du YBa_2Cu_3O _7 polycristallin. Ce modele empirique permet de relier la densite de courant critique a la densite de lignes de flux penetrant dans la region intergrain. Deux techniques de mesures sont utilisees pour caracteriser nos materiaux. La premiere consiste a mesurer le champ au centre d'un cylindre creux en fonction du champ magnetique applique pour des temperatures comprises entre 20 et 85K. En variant l'epaisseur de la paroi du cylindre creux, il est possible de suivre l'evolution des cycles d'hysteresis et de determiner des champs caracteristiques qui varient en fonction de cette dimension. En utilisant un lissage des resultats experimentaux, nous determinons J _{co}, H_ {o} et n, les parametres du MECG. La forme des cylindres, avec une longueur comparable au diametre externe, entrai ne la presence d'un champ demagnetisant qui peut etre inclus dans le modele theorique. Ceci nous permet d'evaluer la fraction du volume ecrante, f _{g}, ainsi que le facteur demagnetisant N. Nous trouvons que J_{ co}, H_{o} et f_{g} dependent de la temperature, tandis que n et N (pour une epaisseur de paroi fixe) n'en dependent pas. La deuxieme technique consiste a mesurer le courant critique de lames minces en fonction du champ applique pour differentes temperatures. Nous utilisons un montage que nous avons developpe permettant d'effectuer ces mesures en contact direct avec le liquide refrigerant, i.e. dans l'azote liquide. Nous varions la temperature du liquide en variant la pression du gaz au-dessus du bain d'azote. Cette methode nous permet de balayer des temperatures entre 65K et la temperature critique du materiau ({~ }92K). Nous effectuons le lissage des courbes de courant critique en fonction du champ applique encore a l'aide du MECG, pour a nouveau obtenir ses parametres. Pour trois echantillons avec des traitements thermiques differents, les parametres

  8. Soft Drink “Pouring Rights”: Marketing Empty Calories to Children

    PubMed Central

    Nestle, Marion

    2000-01-01

    Healthy People 2010 objectives call for meals and snacks served in schools to contribute to overall diets that meet federal dietary guidelines. Sales in schools of foods and drinks high in calories and low in nutrients undermine this health objective, as well as participation in the more nutritious, federally sponsored, school lunch programs. Competitive foods also undermine nutrition information taught in the classroom. Lucrative contracts between school districts and soft drink companies for exclusive rights to sell one brand are the latest development in the increasing commercialization of school food. These contracts, intended to elicit brand loyalty among young children who have a lifetime of purchases ahead of them, are especially questionable because they place schools in the position of “pushing” soft drink consumption. “Pouring rights” contracts deserve attention from public health professionals concerned about the nutritional quality of children's diets. Imagesp308-ap313-a PMID:11059423

  9. Efficacy of alphacypermetrin pour-on against natural Werneckiella equi infestation on donkeys (Equus asinus).

    PubMed

    Veneziano, Vincenzo; Neglia, Gianluca; Galietti, Alfredo; Rufrano, Domenico; Bassini, Andrea; Mariani, Ugo; Gokbulut, Cengiz

    2012-09-01

    The chewing louse Werneckiella equi is an ectoparasite of donkeys and other equids. Alphacypermethrin (ACYP) is a pyrethroid insecticide commonly used for the control of insects of veterinary and public health concerns. A trial was conducted to assess the efficacy of ACYP against W. equi on naturally infested donkeys. Parasitological investigations were performed on 13 animals. On day 0, the donkeys received ACYP pour-on at the manufacturer's recommended dose rate for cattle. Louse counts were performed on days -1, 7, 14, 21, 28, 35, 42, 49, and 56 at seven predilection sites on the skin of each donkey. ACYP was completely effective (100 %) from day 7, until the end of the study. ACYP was well tolerated by all animals as there were no observed clinical adverse reactions. ACYP was highly effective, safe, user-friendly, and considered to be suitable for the treatment of donkeys for W. equi infestation.

  10. Gastric cancer

    SciTech Connect

    Douglass, H.O. )

    1988-01-01

    This book contains 10 selections. Some of the titles are: Radiation therapy for gastric cancer; Experimental stomach cancer: Drug selection based on in vitro testing; Western surgical adjuvant trials in gastric cancers: Lessons from current trials to be applied in the future; and Chemotherapy of gastric cancer.

  11. Prostate cancer

    MedlinePlus

    ... spread of the cancer. But it does not cure the cancer. If prostate cancer spreads even after hormone therapy, ... the Gleason score) when you are diagnosed. A cure is possible if the cancer has not spread. Hormone treatment can improve survival, ...

  12. Vaginal Cancer

    MedlinePlus

    Vaginal cancer is a rare type of cancer. It is more common in women 60 and older. You are also more likely to get it if you have had a human ... test can find abnormal cells that may be cancer. Vaginal cancer can often be cured in its ...

  13. Lung Cancer

    MedlinePlus

    Lung cancer is one of the most common cancers in the world. It is a leading cause of cancer death in men and women in the United States. Cigarette smoking causes most lung cancers. The more cigarettes you smoke per day and ...

  14. Une nouvelle voie pour la conception des implants intervertébraux

    NASA Astrophysics Data System (ADS)

    Gradel, T.; Tabourot, L.; Arrieux, R.; Balland, P.

    2002-12-01

    L'objectif de notre travail est la conception d'une nouvelle génération d'implants intersomatiques qui s'adapte parfaitement à la géométrie des plateaux vertébraux en se déformant. Pour cela, nous avons utilisé une nouvelle démarche qui consiste à simuler entièrement le procédé de fabrication en l'occurrence l'emboutissage, Cette simulation, en concervant l'historique des sollicitations exercées sur le matériau lors de sa mise en œuvre permet de valider très précisément sa résistance mécanique en fin de cycle. Au cours de cette étude, nous avons mené en parallèle deux analyses dites “ coopératives ” : l'une fondée sur un modèle phénoménologique de type HILL et l'autre sur un modèle multi-échelles prenant en compte des phénomènes plus physiques afin d'acquérir une bonne connaissance du comportement du matériau lors de la déformation. C'est pour sa bonne résistance, sa biocompatibilité et ses propriétés radiologiques que nous avons choisi le T40 (titane pur) comme matériau.

  15. Source X-UV pour la spectroscopie d'absorption en régime femtoseconde

    NASA Astrophysics Data System (ADS)

    Lecherbourg, L.; Fourmaux, S.; Kieffer, J. C.; Martin, F.; Pépin, H.; Chaker, M.; Magnan, S.; Coté, C. Y.

    2006-12-01

    Les processus dynamiques se produisant lors de transitions de phase ultra-rapide peuvent être déduits à partir de mesures de diffraction ou d'absorption de rayonnement X. Les lasers femtosecondes ont récemment été utilisés pour étudier la dynamiques de la matière au moyen d'une pompe optique et d'une sonde X : du rayonnement X K alpha produit par interaction laser plasma. Nous présentons nos plus récents résultats concernant le développement d'un sytème de spectroscopie d'absorption du rayonnement X (XAS) basée sur une source laser-plasma large bande dans la gamme 1-5 nm permettant d'atteindre une résolution temporelle femtoseconde. Le système est conçu pour sonder les dynamiques électroniques ayant lieu durant la transion de phase semiconducteur-métal du dyoxide de vanadium (VO2) lorsque celle-ci est initiée par une impulsion laser femtoseconde. Dans la présente expérience, un spectre large bande proche du seuil L du vanadium (511 eV) et du seuil K de l'oxygène (525 eV) du VO2 a été généré et mesuré avec un haut rapport signal sur bruit (100), une grande résolution spectrale (Δ E/E = 4.2× 10-3), et une résolution temporelle de 1,2 ps.

  16. What Is Breast Cancer?

    MedlinePlus

    ... Next Topic Types of breast cancers What is breast cancer? Breast cancer starts when cells in the breast ... breast cancer? ” and Non-cancerous Breast Conditions . How Breast Cancer Spreads Breast cancer can spread through the lymph ...

  17. Radon and Cancer

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  18. Cervical Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  19. NCI Designated Cancer Centers

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Cancer Center History Frederick National Laboratory for Cancer Research Partners ... Profiles in Cancer Research Outstanding Investigator Award Recipients ...

  20. Endometrial Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  1. Prostate Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  2. Prostate cancer - resources

    MedlinePlus

    Resources - prostate cancer ... The following organizations are good resources for information on prostate cancer : American Cancer Society -- www.cancer.org/cancer/prostatecancer/index National Cancer Institute -- www.cancer.gov/cancertopics/ ...

  3. Diet and cancer

    MedlinePlus

    Fiber and cancer; Cancer and fiber; Nitrates and cancer; Cancer and nitrates ... DIET AND BREAST CANCER The link between nutrition and breast cancer has been well studied. To reduce risk of breast cancer the American ...

  4. Modelisation de photodetecteurs a base de matrices de diodes avalanche monophotoniques pour tomographie d'emission par positrons

    NASA Astrophysics Data System (ADS)

    Corbeil Therrien, Audrey

    La tomographie d'emission par positrons (TEP) est un outil precieux en recherche preclinique et pour le diagnostic medical. Cette technique permet d'obtenir une image quantitative de fonctions metaboliques specifiques par la detection de photons d'annihilation. La detection des ces photons se fait a l'aide de deux composantes. D'abord, un scintillateur convertit l'energie du photon 511 keV en photons du spectre visible. Ensuite, un photodetecteur convertit l'energie lumineuse en signal electrique. Recemment, les photodiodes avalanche monophotoniques (PAMP) disposees en matrice suscitent beaucoup d'interet pour la TEP. Ces matrices forment des detecteurs sensibles, robustes, compacts et avec une resolution en temps hors pair. Ces qualites en font un photodetecteur prometteur pour la TEP, mais il faut optimiser les parametres de la matrice et de l'electronique de lecture afin d'atteindre les performances optimales pour la TEP. L'optimisation de la matrice devient rapidement une operation difficile, car les differents parametres interagissent de maniere complexe avec les processus d'avalanche et de generation de bruit. Enfin, l'electronique de lecture pour les matrices de PAMP demeure encore rudimentaire et il serait profitable d'analyser differentes strategies de lecture. Pour repondre a cette question, la solution la plus economique est d'utiliser un simulateur pour converger vers la configuration donnant les meilleures performances. Les travaux de ce memoire presentent le developpement d'un tel simulateur. Celui-ci modelise le comportement d'une matrice de PAMP en se basant sur les equations de physique des semiconducteurs et des modeles probabilistes. Il inclut les trois principales sources de bruit, soit le bruit thermique, les declenchements intempestifs correles et la diaphonie optique. Le simulateur permet aussi de tester et de comparer de nouvelles approches pour l'electronique de lecture plus adaptees a ce type de detecteur. Au final, le simulateur vise a

  5. Developpement des betons semi autoplacants a rheologie adaptee pour des infrastructures

    NASA Astrophysics Data System (ADS)

    Sotomayor Cruz, Cristian Daniel

    Au cours des dernières décennies, les infrastructures canadiennes et québécoises comportent plusieurs structures en béton armé présentant des problèmes de durabilité dus aux conditions climatiques sévères, à la mauvaise conception des structures, à la qualité des matériaux, aux types des bétons choisis, aux systèmes de construction ou à l'existence d'événements incontrôlables. En ce qui concerne le choix du béton pour la construction des infrastructures, une vaste gamme de béton divisée en deux principaux types peut être utilisée: le béton conventionnel vibré (BCV) et le béton autoplaçant (BAP). Dans le cas d'un BCV, la consolidation inadéquate par vibration a été un problème récurrent, occasionnant des dommages structuraux. Ceci a conduit à une réduction de la durabilité et à une augmentation du coût d'entretien et de réparation des infrastructures. Rien que l'utilisation d'un BAP a des avantages tels que l'élimination de la vibration, la réduction des coûts de main d'oeuvre et l'amélioration de la qualité des structures, néanmoins, le coût initial d'un BAP par rapport à un BCV ne permet pas encore de généraliser son utilisation dans l'industrie de la construction. Ce mémoire présente la conception d'une nouvelle gamme de béton semi-autoplaçant pour la construction des infrastructures (BSAP-I) exigeant une vibration minimale. Il s'agit de trouver un équilibre optimal entre la rhéologie et le coût initial du nouveau béton pour conférer une bonne performance structurale et économique aux structures. Le programme expérimental établi a premièrement permis d'évaluer la faisabilité d'utilisation des BSAP-I pour la mise en place des piliers d'une infrastructure de pont à Sherbrooke. En plus, l'utilisation d'un plan d'expériences a permis l'évaluation de trois paramètres de formulation sur les propriétés des mélanges de BSAP-I à l'état frais et durci. Finalement, l'évaluation de la performance des

  6. Nanofabrication de boites quantiques laterales pour l'optimisation de qubits de spin

    NASA Astrophysics Data System (ADS)

    Camirand Lemyre, Julien

    On présente dans ce travail un nouveau type de qubit de spin dont les performances reposent sur les propriétés d'un seul électron dans une double boîte quantique. Le fort moment dipolaire de la double boite combiné à une large variation du champ magnétique entre les deux boîtes permettrait de réaliser des opérations logiques plus rapidement que dans une seule boîte quantique. Pour maximiser les variations du champ magnétique, on utilisera un micro-aimant placé le plus près possible d'une des deux boîtes. À cette fin, une hétérostructure de GaAs/A1GaAs sur laquelle sont déposées des grilles d'aluminium a été utilisée pour former une double boite quantique latérale. L'occupation par un seul électron de la double boîte est confirmée par des mesures de transport électrique à basse température ainsi que par l'observation du blocage de spin. De plus, un procédé d'oxydation des grilles par plasma d'oxygène a été développé. Une étude des propriétés de l'oxyde formé par cette méthode montre qu'il est possible de placer un micro-aimant directement sur la surface de l'hétérostructure sans affecter l'isolation électrique entre les grilles. Cette nouvelle approche permet de produire des champs magnétiques encore plus intenses que dans les expériences antérieures, pour lesquelles le micro-aimant est placé beaucoup plus loin de la surface. L'ensemble du procédé de fabrication, de la photolithographie à l'électrolithographie, a été développé au cours de ce travail dans les salles blanches du département de génie électrique et dans les salles propres du département de physique de l'Université de Sherbrooke. Ce travail est une étape importante dans la réalisation de qubits de spin plus performants dans les boîtes quantiques latérales. Mots-clés: Information quantique, Spin, Rotations ultra-rapides, Boîtes quantiques latérales, Micro-aimants, Oxydation plasma, Nanofabrication.

  7. L’investigation de la contusion myocardique pour la fracture sternale à l’urgence

    PubMed Central

    Audette, Jean-Sébastien; Émond, Marcel; Scott, Hugh; Lortie, Gilles

    2014-01-01

    Résumé Objectif Décrire la pratique d’acquisition d’un électrocardiogramme (ECG) initial, d’ECG de contrôle ou d’un monitoring équivalent et du dosage des troponines chez les patients avec une fracture sternale évalués au département d’urgence ou par un médecin de première ligne. Type d’étude Étude rétrospective descriptive multicentrique. Contexte Deux centres académiques de traumatologie de la région de Québec au Canada. Participants 54 patients ayant subi une fracture sternale traumatique. Interventions Évaluation de l’acquisition d’ECG initial et à 6 heures post-traumatisme ou un monitoring équivalent ainsi que le dosage des troponines sanguines. Principaux paramètres à l’étude En ce qui concerne l’ECG, les critères de comparaison de qualité furent sélectionnés à partir d’opinions d’experts rapportées dans quatre études. L’utilisation d’un ECG initial et de contrôle 6 heures post-traumatisme ou d’un monitoring cardiaque de 6 heures représente la pratique recommandée par la plupart de ceux-ci pour le diagnostic de la contusion myocardique dans la fracture sternale. L’utilisation des troponines I sanguines, 4 à 8 heures suivant un traumatisme thoracique, a également été proposée par certains auteurs comme méthode de détection efficace des arythmies significatives secondaires à la contusion myocardique. Des analyses descriptives univariées et des tests de chi-carré furent effectués. Une valeur P < ,05 fut considérée significative. Résultats Trente-neuf (72 %) patients ont été évalués initialement avec un ECG, tandis que 18 (33 %) de ces patients ont eu une évaluation par ECG ou monitoring cardiaque après 6 heures à l’urgence. Seize patients (30 %) ont été évalués à l’aide du dosage des troponines I. Deux patients (4 %) ont présenté des anomalies électrocardiographiques et un seul patient (2 %) a présenté des troponines I élevées. Conclusion Les urgentologues

  8. Eye Cancer

    MedlinePlus

    Cancer of the eye is uncommon. It can affect the outer parts of the eye, such as the eyelid, which are made up ... adults are melanoma and lymphoma. The most common eye cancer in children is retinoblastoma, which starts in ...

  9. Bladder Cancer

    MedlinePlus

    ... organ in your lower abdomen that stores urine. Bladder cancer occurs in the lining of the bladder. It ... urinate Low back pain Risk factors for developing bladder cancer include smoking and exposure to certain chemicals in ...

  10. Oral Cancer

    MedlinePlus

    ... swallowing A lump in your neck An earache Oral cancer treatments may include surgery, radiation therapy or chemotherapy. Some patients have a combination of treatments. NIH: National Cancer Institute

  11. Occupational Cancer

    MedlinePlus

    ... Carcinogen List Cancer Clusters Cancer Policy at NIOSH Diesel Exhaust in Miners Study (DEMS) Related Topics Asbestos ... Toxicology Program Report on Carcinogens NIOSH Pocket Guide Diesel Exhaust in Miners Study (DEMS) Recent NIOSH Research ...

  12. Cervical Cancer

    MedlinePlus

    ... the place where a baby grows during pregnancy. Cervical cancer is caused by a virus called HPV. The ... for a long time, or have HIV infection. Cervical cancer may not cause any symptoms at first. Later, ...

  13. Oral Cancer

    MedlinePlus

    ... use. Some oral cancers are linked to human papilloma virus (HPV) infections of the mouth and throat. ... The number of oropharyngeal cancers linked to human papilloma virus (HPV) has risen dramatically over the past ...

  14. Thymus Cancer

    MedlinePlus

    ... cell. These cells help protect you from infections. Cancer of the thymus is rare. You are more ... Sometimes there are no symptoms. Other times, thymus cancer can cause A cough that doesn't go ...

  15. Prostate Cancer

    MedlinePlus

    ... man's bladder that produces fluid for semen. Prostate cancer is common among older men. It is rare ... younger than 40. Risk factors for developing prostate cancer include being over 65 years of age, family ...

  16. Gallbladder Cancer

    MedlinePlus

    ... your gallbladder and liver to your small intestine. Cancer of the gallbladder is rare. It is more ... the abdomen It is hard to diagnose gallbladder cancer in its early stages. Sometimes doctors find it ...

  17. Cancer Disparities

    Cancer.gov

    Basic information about cancer disparities in the U.S., factors that contribute to the disproportionate burden of cancer in some groups, and examples of disparities in incidence and mortality among certain populations.

  18. Pancreatic Cancer

    MedlinePlus

    ... hormones that help control blood sugar levels. Pancreatic cancer usually begins in the cells that produce the juices. Some risk factors for developing pancreatic cancer include Smoking Long-term diabetes Chronic pancreatitis Certain ...

  19. Intestinal Cancer

    MedlinePlus

    ... connects your stomach to your large intestine. Intestinal cancer is rare, but eating a high-fat diet ... increase your risk. Possible signs of small intestine cancer include Abdominal pain Weight loss for no reason ...

  20. Colorectal Cancer

    MedlinePlus

    ... rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of ... men and women. The risk of developing colorectal cancer rises after age 50. You're also more ...

  1. Nasal Cancer

    MedlinePlus

    ... the way to your throat as you breathe. Cancer of the nasal cavity and paranasal sinuses is ... be like those of infections. Doctors diagnose nasal cancer with imaging tests, lighted tube-like instruments that ...

  2. Esophageal Cancer

    MedlinePlus

    ... from your throat to your stomach. Early esophageal cancer usually does not cause symptoms. Later, you may ... You're at greater risk for getting esophageal cancer if you smoke, drink heavily, or have acid ...

  3. Cervical Cancer

    MedlinePlus

    ... Centers for Disease Control and Prevention’s (CDC) Inside Knowledge: Get the Facts About Gynecologic Cancer campaign. The ... the facts about gynecologic cancer, providing important “inside knowledge” about their bodies and health. Get the Facts ...

  4. Uterine Cancer

    MedlinePlus

    ... Centers for Disease Control and Prevention’s (CDC) Inside Knowledge: Get the Facts About Gynecologic Cancer campaign. The ... the facts about gynecologic cancer, providing important “inside knowledge” about their bodies and health. Get the Facts ...

  5. Multiregional evaluation of the SimPlate heterotrophic plate count method compared to the standard plate count agar pour plate method in water.

    PubMed

    Jackson, R W; Osborne, K; Barnes, G; Jolliff, C; Zamani, D; Roll, B; Stillings, A; Herzog, D; Cannon, S; Loveland, S

    2000-01-01

    A new SimPlate heterotrophic plate count (HPC) method (IDEXX Laboratories, Westbrook, Maine) was compared with the pour plate method at 35 degrees C for 48 h. Six laboratories tested a total of 632 water samples. The SimPlate HPC method was found to be equivalent to the pour plate method by regression analysis (r = 0. 95; y = 0.99X + 0.06).

  6. [Insecticide treatment (Pour on and Spot on) of cattle against Glossina fuscipes fuscipes in the Central African Republic].

    PubMed

    Gouteux, J P; Le Gall, F; Guillerme, J M; Demba, D

    1996-01-01

    Four herds of Mbororo Zebu cattle (approximately 40 head each) in traditional situation of the Fulani breeders were treated over a 12 month period. Flumethrin Pour on was first used every three weeks during the rainy season and then deltamethrin Spot on was used every six weeks during the dry season. Pour on treatments might affect the age structure and feeding patterns of the neighbouring populations of G fuscipes. However, the treatments had no impact on the apparent density of flies. They changed neither the prevalence of trypanosome infection rates in cattle nor the hematocrit levels. This trial shows that, under these experimental conditions, insecticide treatments were not effective for the control trypanosomosis in cattle. Further trials should be carried out to assess the usefulness of this method when it is integrated with the trapping of tsetse flies. PMID:8767889

  7. Method and apparatus for determining the presence or absence of a pour point depressant additive in hydrocarbon liquids

    SciTech Connect

    Rummel, J.D.

    1986-07-29

    A method is described of determining the presence or absence of a pour point depressant additive in a hydrocarbon liquid derived from petroleum, the liquid containing paraffin wax, comprising the steps of: (a) cooling a sample of the liquid at a predetermined cooling rate from a temperature substantially above the cloud point temperature to a temperature substantially below the cloud point temperature; (b) monitoring the slope of the cooling rate curve and noting the points at which a deflection in the curve begins and ends; (c) determining the time interval between the beginning and ending points of the deflection of the curve, and (d) comparing the determined time interval to a reference time interval, associated with the predetermined cooling rate, so as to establish whether the determined time interval is less than or greater than the reference time interval thereby establishing the presence or absence, respectively, of a pour point depressant additive.

  8. Êtes-vous prêt pour un code bleu en cabinet?

    PubMed Central

    Moore, Simon

    2015-01-01

    Résumé Problème traité Les urgences médicales sont fréquentes dans le cabinet des médecins de famille, mais nombreux sont ceux qui ne sont pas préparés à répondre aux urgences. Une vidéo éducative en ligne traitant des urgences en cabinet pourrait améliorer la réponse des médecins et de leur personnel aux urgences. Un outil comme celui-là n’a jamais été décrit auparavant. Objectif du programme Utiliser les pratiques fondées sur les données probantes pour produire une vidéo éducative expliquant comment se préparer à parer à une urgence dans un cabinet médical, disséminer la vidéo en ligne et évaluer l’attitude des médecins et de leur personnel à l’égard de la vidéo. Description du programme Une vidéo de 6 minutes a été produite en s’appuyant sur une revue de la littérature récente et des politiques des organismes réglementaires canadiens. La vidéo décrit l’équipement d’urgence recommandé, l’amélioration de la réponse à l’urgence et la formation du personnel en cabinet. Les médecins et leur personnel ont été invités à visualiser la vidéo en ligne à www.OfficeEmergencies.ca. L’opinion de l’auditoire sur le format de la vidéo et son contenu a été évaluée par l’entremise d’un sondage (N = 275). Conclusion Les résultats du sondage indiquent que la vidéo était pertinente et bien présentée, et le format en ligne était pratique et satisfaisant. Les participants s’inscriraient à d’autres formations ayant recours à cette technologie et étaient d’accord pour dire que ce programme améliorerait les soins aux patients.

  9. Recommandations pour le dépistage de l’hypertension chez les adultes canadiens

    PubMed Central

    Lindsay, Patrice; Gorber, Sarah Connor; Joffres, Michel; Birtwhistle, Richard; McKay, Donald; Cloutier, Lyne

    2013-01-01

    Résumé Objectif Présenter des recommandations concernant le dépistage de l’hypertension chez les adultes de 18 ans et plus qui n’ont pas reçu antérieurement de diagnostic d’hypertension. Qualité des données Les données probantes sont tirées d’une recension systématique dans MEDLINE, EMBASE et la base de données des synthèses systématiques de la Collaboration Cochrane (EBM Reviews), de janvier 1985 à septembre 2011. Les types d’études retenues se limitaient aux études randomisées contrôlées, aux synthèses systématiques et aux études observationnelles avec groupes témoins. Message principal Trois fortes recommandations se sont dégagées de données probantes de qualité modérée. Il est recommandé de mesurer la pression artérielle à toutes les consultations appropriées en soins primaires, conformément aux techniques actuelles décrites dans les recommandations du Programme éducatif canadien sur l’hypertension pour la mesure de la pression artérielle en cabinet et en soins ambulatoires. Les critères du Programme éducatif canadien sur l’hypertension pour l’évaluation et le diagnostic de l’hypertension devraient s’appliquer aux personnes chez qui on observe une pression artérielle élevée. Conclusion À la suite d’un examen des plus récentes données probantes, le Groupe d’étude canadien sur les soins de santé préventifs continue de recommander la mesure de la pression artérielle lors des consultations périodiques auprès du médecin.

  10. Realisation d'un detecteur de radioactivite pour un systeme microfluidique

    NASA Astrophysics Data System (ADS)

    Girard Baril, Frederique

    Pour etablir le comportement pharmacocinetique de nouveaux radiotraceurs en imagerie moleculaire, il est necessaire d'approfondir l'analyse realisee a partir d'une image par l'ajout d'une mesure dynamique de la radioactivite dans le sang. L'Universite de Sherbrooke developpe presentement une plateforme microfluidique d'echantillonnage et d'analyse permettant la mesure de la radioactivite du plasma en temps reel. L'objectif du present projet de maitrise etait de realiser le composant optoelectronique responsable de la detection des positrons et de l'integrer a la puce microfluidique. L'option retenue a ete l'utilisation de photodiodes PIN en silicium. Un procede de fabrication, ainsi qu'une serie de photomasques ont ete developpes afin de produire une premiere iteration de prototypes. Les detecteurs ont ete concus de maniere a optimiser leur sensibilite en fonction du type de rayonnement a detecter. En effet, la region de detection doit etre suffisamment epaisse et sensible pour absorber le maximum de particules energetiques. Egalement, il est essentiel de minimiser le courant de fuite en noirceur afin d'obtenir un photocourant directement proportionnel a l'energie des radiations incidentes. Les caracteristiques electriques obtenues avec les premiers detecteurs ont ete demontrees proches des performances de detecteurs commerciaux similaires. De plus, il a ete possible d'integrer un canal microfluidique au substrat contenant les photodiodes et d'en realiser l'encapsulation sans alterer les performances electriques initiales des detecteurs. Une courbe de l'activite radioactive du 18F a ete mesuree, celle-ci se comparant a l'activite theorique associee a ce radioisotope communement utilise en TEP. Enfin, un spectre en energie des emissions radiatives du 18F a ete mesure et compare aux performances de systemes utilisant des photodiodes commerciales. Il a ete demontre que le prototype offrait un rapport signal sur bruit similaire aux systemes bases sur des photodiodes

  11. Transmission Sur Fibres Optiques Dans Un Systeme D'Archivage Et De Communication D'Images Pour Des Applications Medicales

    NASA Astrophysics Data System (ADS)

    Aaron, Gilles; Bonnard, Rene

    1984-03-01

    Dans l'hOpital, le besoin d'un reseau de communication electronique ne cesse de crottre au fur et a mesure de la numerisation des images. Ce reseau local a pour but de relier quelques sources d'images telles la radiologie numerique, la tomodensitometrie, la resonance magnetique nucleaire, l'echographie ultraso-nore etc..., a un systme d'archivage. Des consoles de visualisation interacti-ves peuvent etre utilisees dans les salles d'examens, les bureaux des medecins et les services de soins. Dans un tel systme, trois caracteristiques princi-pales doivent etre prises en compte le debit, la longueur du cable et le nombre de connexions. - Le debit est tr?)s important, en effet, un temps de reponse maxima de quel-ques secondes doit etre garanti pour des images de plusieurs millions d'ele-ments binaires. - La distance entre connexions peut etre de quelques km dans certains grands hopitaux. - Le nombre de connexions au reseau ne depasse jamais quelques dizaines car les sources d'images et les unites de traitement representent des materiels importants, par ailleurs les consoles de visualisation simples peuvent etre groupees en grappe. Toutes ces conditions sont remplies par les transmissions sur fibres optiques. Selon la topologie et la methode d'accNs, deux solutions peuvent etre envisa-gees : - Anneau actif - Etoile active ou passive Enfin, les developpements de Thomson-CSF en composants pour transmissions optiques pour les grands reseaux de tel4distribution nous apportent un support technologique et une production de masse qui diminuera les collts du materiel.

  12. What is Prostate Cancer?

    MedlinePlus

    ... Topic Key statistics for prostate cancer What is prostate cancer? Cancer starts when cells in the body begin ... through the center of the prostate. Types of prostate cancer Almost all prostate cancers are adenocarcinomas . These cancers ...

  13. National Cancer Institute

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  14. Breast Cancer Prevention

    MedlinePlus

    ... of Breast & Gynecologic Cancers Breast Cancer Screening Research Breast Cancer Prevention (PDQ®)–Patient Version What is prevention? Go ... to keep cancer from starting. General Information About Breast Cancer Key Points Breast cancer is a disease in ...

  15. Inflammatory Breast Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  16. Secondhand Smoke and Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  17. Psychological Stress and Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  18. Photodynamic Therapy for Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  19. Snapshot of Stomach Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  20. Electromagnetic Fields and Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  1. Antioxidants and Cancer Prevention

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  2. Biological Therapies for Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  3. Snapshot of Pediatric Cancers

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  4. Head and Neck Cancers

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  5. Helicobacter pylori and Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  6. Snapshot of Esophageal Cancer

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  7. Colon cancer - resources

    MedlinePlus

    Resources - colon cancer ... The following organizations are good resources for information on colon cancer : American Cancer Society -- www.cancer.org/cancer/colonandrectumcancer/index Colon Cancer Alliance -- www.ccalliance.org National ...

  8. Throat or larynx cancer

    MedlinePlus

    Vocal cord cancer; Throat cancer; Laryngeal cancer; Cancer of the glottis; Cancer of oropharynx or hypopharynx ... use tobacco are at risk of developing throat cancer. Drinking too much alcohol over a long time ...

  9. Cervical Cancer

    MedlinePlus

    ... dysplasia of the cervix, vagina, or vulva • A family history of cervical cancer •Smoking •Certain sexually transmitted infections , such as chlamydia • ... to treat your cancer, you still need cervical cancer screening. Cells are taken from the upper vagina ... smallest units of a structure in the body; the building blocks for all ...

  10. Vulvar Cancer

    MedlinePlus

    ... of cancer. It forms in a woman's external genitals, called the vulva. The cancer usually grows slowly over several years. First, precancerous ... papillomavirus (HPV) infection or have a history of genital warts. Your health ... diagnoses vulvar cancer with a physical exam and a biopsy. Treatment ...

  11. Cancer Basics

    MedlinePlus

    ... of cells , tiny units that make up all living things. Cancer (also known as malignancy , pronounced: muh-LIG- ... cancer and cancer treatments can disrupt a person's life for a while. People ... to take care of the things they have to get done. For example, teens ...

  12. Breast Cancer

    MedlinePlus

    Breast cancer affects one in eight women during their lives. No one knows why some women get breast cancer, but there are many risk factors. Risks that ... who have family members with breast or ovarian cancer may wish to be tested for the genes. ...

  13. Testicular Cancer

    MedlinePlus

    ... of skin behind the penis. You can get cancer in one or both testicles. Testicular cancer mainly affects young men between the ages of ... undescended testicle Have a family history of the cancer Symptoms include pain, swelling, or lumps in your ...

  14. Effects of Mold Temperature and Pouring Temperature on the Hot Tearing of Cast Al-Cu Alloys

    NASA Astrophysics Data System (ADS)

    Li, Shimin; Sadayappan, Kumar; Apelian, Diran

    2016-07-01

    The effects of mold temperature and pouring temperature on hot tearing formation and contraction behavior of a modified Al-Cu alloy 206 (M206) have been studied. The experiments were conducted using a newly developed Constrained Rod Mold, which simultaneously measures the contraction force/time/temperature during solidification for the restrained casting or linear contraction/time/temperature for a relaxed casting. Three mold temperatures [473 K, 573 K, and 643 K (200 °C, 300 °C, and 370 °C)] and three pouring temperatures [superheat of 50 K, 100 K, and 150 K (50 °C, 100 °C, and 150 °C)] were studied, and alloy A356 was used as reference for comparison. The results confirm that alloy A356 has high resistance to hot tearing. Hot tearing did not occur for the three mold temperatures evaluated, whereas alloy M206 exhibited significant hot tearing for the same casting and mold temperature conditions. Hot tearing severity and linear contraction in alloy 206 decreased significantly with increasing mold temperature. Increasing pouring temperature increases hot tearing in alloy M206, but the effect is not as significant as that of mold temperature. The results and underlying mechanism of these effects are discussed in correlation with the thermomechanical properties and microstructures.

  15. Effects of Mold Temperature and Pouring Temperature on the Hot Tearing of Cast Al-Cu Alloys

    NASA Astrophysics Data System (ADS)

    Li, Shimin; Sadayappan, Kumar; Apelian, Diran

    2016-10-01

    The effects of mold temperature and pouring temperature on hot tearing formation and contraction behavior of a modified Al-Cu alloy 206 (M206) have been studied. The experiments were conducted using a newly developed Constrained Rod Mold, which simultaneously measures the contraction force/time/temperature during solidification for the restrained casting or linear contraction/time/temperature for a relaxed casting. Three mold temperatures [473 K, 573 K, and 643 K (200 °C, 300 °C, and 370 °C)] and three pouring temperatures [superheat of 50 K, 100 K, and 150 K (50 °C, 100 °C, and 150 °C)] were studied, and alloy A356 was used as reference for comparison. The results confirm that alloy A356 has high resistance to hot tearing. Hot tearing did not occur for the three mold temperatures evaluated, whereas alloy M206 exhibited significant hot tearing for the same casting and mold temperature conditions. Hot tearing severity and linear contraction in alloy 206 decreased significantly with increasing mold temperature. Increasing pouring temperature increases hot tearing in alloy M206, but the effect is not as significant as that of mold temperature. The results and underlying mechanism of these effects are discussed in correlation with the thermomechanical properties and microstructures.

  16. QUELS FUTURS TRAITEMENTS POUR LA DEPENDANCE AU TABAC ET AU CANNABIS?

    PubMed Central

    LE FOLL, Bernard; JUSTINOVA, Zuzana; TANDA, Gianlugi; GOLDBERG, Steven R.

    2009-01-01

    RESUME Plus de trois millions de morts sont attribués au tabagisme dans le monde par an, et l’usage de tabac est en progression dans les pays en voie de développement. L’usage de tabac est donc une des rares causes de mortalité qui augmente, avec une prévision de plus de 10 millions de morts par an dans 30–40 ans. Le cannabis ou marijuana est la drogue illicite la plus consommée dans le monde et il n’y a actuellement pas de traitement disponible. Bien que les systèmes dopaminergiques jouent un rôle central dans les effets renforçants des drogues, d’autres systèmes sont impliqués. Nous présentons ici des résultats récents obtenus avec des antagonistes des récepteurs cannabinoides CB1, des récepteurs D3 de la dopamine et des récepteurs opioïdes. Ces antagonistes qui modulent de façon directe ou indirecte la transmission dopaminergique cérébrale représentent des approches prometteuses pour le traitement du tabagisme ou de la dépendance au cannabis. Ces approches sont à valider dans des essais cliniques. PMID:18663981

  17. Analysis Of DWPF Sludge Batch 7a (Macrobatch 8) Pour Stream Samples

    SciTech Connect

    Johnson, F. C.; Pareizs, J. M.

    2012-10-24

    The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 7a (SB7a), also referred to as Macrobatch 8 (MB8), in June 2011. SB7a is a blend of the heel of Tank 40 from Sludge Batch 6 (SB6) and the SB7a material that was transferred to Tank 40 from Tank 51. SB7a was processed using Frit 418. During processing of each sludge batch, the DWPF is required to take at least one glass sample to meet the objectives of the Glass Product Control Program (GPCP), which is governed by the DWPF Waste Compliance Plan, and to complete the necessary Production Records so that the final glass product may be disposed of at a Federal Repository. Three pour stream glass samples and two Melter Feed Tank (MFT) slurry samples were collected while processing SB7a. These additional samples were taken during SB7a to understand the impact of antifoam and the melter bubblers on glass redox chemistry. The samples were transferred to the Savannah River National Laboratory (SRNL) where they were analyzed.

  18. La planification préalable des soins pour les patients en pédiatrie

    PubMed Central

    2008-01-01

    RÉSUMÉ Les progrès médicaux et technologiques ont permis d’ac-croître les taux de survie et d’améliorer la qualité de vie des nourrissons, des enfants et des adolescents ayant des maladies chroniques mettant la vie en danger. La planifi-cation préalable des soins inclut le processus relié aux discussions sur les traitements essentiels au maintien de la survie et la détermination des objectifs des soins de longue durée. Les dispensateurs de soins pédiatriques ont l’obligation éthique d’assimiler cet aspect des soins médicaux. Le présent document de principes vise à aider les dispensateurs de soins à discuter de la planification préalable des soins des patients pédiatriques dans diverses situations. La planification préalable des soins exige des communications efficaces afin de clarifier les objectifs des soins et de s’entendre sur les traitements pertinents ou non pour réaliser ces objectifs, y compris les mesures de réanimation et les mesures palliatives.

  19. Letter Report. Defense Waste Processing Facility Pour Spout Heaters - Conceptual Designs and Modeling

    SciTech Connect

    SK Sundaram; JM Perez, Jr.

    2000-09-06

    The Tanks Focus Area (TFA) identified a major task to address performance limitations and deficiencies of the Defense Waste Processing Facility (DWPF) now in its sixth year of operation. Design, installation, testing, monitoring, operability, and a number of other characteristics were studied by research personnel collaboratively at a number of facilities: Savannah River Technology Center (SRTC), Clemson Environmental Technologies Laboratory (CETL), Pacific Northwest National Laboratory (PNNL), and the Idaho National Engineering and Environmental Laboratory (INEEL). Because the potential limiting feature to the DWPF was identified as the pour spout/riser heater, researches on alternative design concepts originally proposed in the past were revisited. In the original works, finite element modeling was performed to evaluate temperature distribution and stress of the design currently used at the DWPF. Studies were also made to define the requirements of the design and to consider the approaches for remote removal/replacement. Their heater type/location, their remotely replaceable thermocouples, and their capabilities for remote handling characterized the five alternative designs proposed. Review comments on the alternative designs indicated a relatively wide range of advantages and disadvantages of the designs. The present report provides an overview of the design criteria, modeling results, and alternative designs. Based on a review of the past design optimization activities and an assessment of recent experience, recommendations are proposed for future consideration and improvement.

  20. Sondes radicalaires pour l'imagerie RPE et PDN stables dans les fluides biologiques

    NASA Astrophysics Data System (ADS)

    Guiberteau, T.; Marx, L.; Rassat, A.; Grucker, D.

    1999-10-01

    Electron paramagnetic resonance and dynamic nuclear polarisation are two techniques that allow the detection of free radicals. They can also be used for in vivo studies for oximetry in blood or tissues. One of the main problems for the development of these techniques is the need of free radicals that are stable in biological media. We present in this communication a study by EPR and DNP of two free radicals that can be suitable for in vivo applications. La résonance paramagnétique électronique et la polarisation dynamique nucléaire sont deux techniques qui permettent de détecter les radicaux libres dans divers systèmes. Elles peuvent également être utilisées in vivo et permettre ainsi de mesurer la concentration en oxygène dans le sang ou dans les tissus. Un des problèmes de ces techniques est l'utilisation de sondes radicalaires suffisamment stables dans les milieux biologiques. Nous présentons une étude comparative par RPE et PDN de deux radicaux libres de type nitroxydes dérivés de l'isoindoline. Un des radicaux possédant quatre groupements éthyle semble être intéressant pour le développement de la RPE et la PDN in vivo.

  1. Uranyl nitrate pouring solution for producing nuclear fuel particles and a method for its preparation

    SciTech Connect

    Hein, K.

    1983-05-24

    Sorbitol, or another polyalcohol such as erythritol, dulcitol or xylitol, is added to a solution containing uranyl nitrate which may also contain another heavy metal, such as thorium or plutonium, prior to preneutralization with ammonia in order to provide a highly viscous solution that can be preneutralized to a great extent without premature precipitation of uranium. The high viscosity makes possible the formation of favorably large drops when the solution is dripped into an ammonia containing bath for external gelification of the drops. According to the pouring apparatus used, the particles after washing, drying and sintering have a diameter between 0.6 and 1.5 mm. The polyalcohol is added to a hydrosol containing from 1.5 to 2 moles per liter of heavy metal, the polyalcohol being added until concentration of onethird mole of polyalcohol per mole of heavy metal is reached. In certain cases up to four moles of ammonium nitrate per liter are added. The solution so produced can be preneutralized with up to 90% of the amount of ammonia stoichiometrically necessary for T separation of uranium without the formation of any precipitate, preferably by first adding ammonia gas under strong stirring and then adding ammonium bicarbonate in excess, which decomposes to liberate ammonia to an extent determined by the temperature, which is to be precisely controlled. It is possible to obtain this way a solution of predetermined viscosity from which the excess ammonium bicarbonate can readily be separated.

  2. ANALYTICAL RESULTS OF MOX COLEMANITE CONCRETE SAMPLES POURED AUGUST 29, 2012

    SciTech Connect

    Best, D.; Cozzi, A.; Reigel, M.

    2012-12-20

    The Mixed Oxide Fuel Fabrication Facility (MFFF) will use colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses and shielding operators from radiation. The Savannah River National Laboratory is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. Samples poured 8/29/12 were received on 9/20/2012 and analyzed. The average total density of each of the samples measured by the ASTM method C 642 was within the lower bound of 1.88 g/cm{sup 3}. The average partial hydrogen density of samples 8.6.1, 8.7.1, and 8.5.3 as measured using method ASTM E 1311 met the lower bound of 6.04E-02 g/cm{sup 3}. The average measured partial boron density of each sample met the lower bound of 1.65E-01 g/cm{sup 3} measured by the ASTM C 1301 method. The average partial hydrogen density of samples 8.5.1, 8.6.3, and 8.7.3 did not meet the lower bound. The samples, as received, were not wrapped in a moist towel as previous samples and appeared to be somewhat drier. This may explain the lower hydrogen partial density with respect to previous samples.

  3. ANALYTICAL RESULTS OF MOX COLEMANITE CONCRETE SAMPLES POURED AUGUST 29, 2012

    SciTech Connect

    Cozzi, A.; Best, D.; Reigel, M.

    2012-10-30

    The Mixed Oxide Fuel Fabrication Facility (MFFF) will use colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses and shielding operators from radiation. The Savannah River National Laboratory is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. Samples poured 8/29/12 were received on 9/20/2012 and analyzed. The average total density of each of the samples measured by the ASTM method C 642 was within the lower bound of 1.88 g/cm{sup 3}. The average partial hydrogen density of samples 8.6.1, 8.7.1, and 8.5.3 as measured using method ASTM E 1311 met the lower bound of 6.04E-02 g/cm{sup 3}. The average measured partial boron density of each sample met the lower bound of 1.65E-01 g/cm{sup 3} measured by the ASTM C 1301 method. The average partial hydrogen density of samples 8.5.1, 8.6.3, and 8.7.3 did not meet the lower bound. The samples, as received, were not wrapped in a moist towel as previous samples and appeared to be somewhat drier. This may explain the lower hydrogen partial density with respect to previous samples.

  4. [Pouring water over the body--hydrotherapy prescriptions in the late Middle Ages].

    PubMed

    Jacoby, Joachim

    2002-01-01

    Once identified, an illness is met or fought against by an appropriate therapy. The diverse use of water holds a significant place among the therapeutic means which had been developed in Western medicine ever since antiquity. The essay deals with one particular form of application, namely, the gush of water. Focus is laid on the period around 1500. As the relevant medical treatises are based directly on Greek or Roman authors (Hippocrate, Galen, Celsus) or are even commentaries of Arabic handbooks in their Latin translations (Avicenna, Rhazes), antique medicine inevitably had also to be taken into account. The pouring of water, alone or in combination with other prescriptions, was applicable in a variety of illnesses as fevers, pains of the joints, psychic diseases, or even headaches. To counteract the causes (or symptoms) of a disease the water quality could be adjusted by changing its temperature, by adding certain substances (oils, herb extracts or decoctions) or by varying the way of application. The gush of water could serve many purposes and was prescribed to soothe, to refrigerate, to stop a swelling, to widen pores, to shock the patient and even, given the underlying humoural conception of men's nature, to draw away humours from one part of the body to another. The water gush, hence, was not restricted to be used in the case of one particular illness only but was considered an almost general therapeutic means. PMID:12168234

  5. Traitement des Images pour la Reconnaissance de Formes EN Presence de Bruit Dependant du Signal

    NASA Astrophysics Data System (ADS)

    Terrillon, Jean-Christophe

    En traitement d'images, tres peu de recherches ont jusqu'a present considere le probleme de la reconnaissance de formes en presence de bruit dependant du signal. L'originalite de ce travail reside d'une part dans l'etude de la reconnaissance de formes par correlation, invariante sous translation et invariante simultanement sous rotation et translation, en presence de bruit dependant du signal et, d'autre part, dans le developpement de nouvelles methodes de traitement d'images qui preservent la reconnaissance en presence du bruit lorsque les methodes existantes ont echoure. Nous considerons principalement le speckle, qui peut se manifester dans les correlateurs optiques operant en eclairement coherent. Les nouvelles methodes que nous proposons consistent en un pre-traitement des images bruitees base sur la theorie de l'estimation. Au moyen de simulations numeriques et d'une analyse statistique, nous montrons les avantages du pre-traitement, en particulier pour la reconnaissance avec les filtres de correlation invariants sous rotation et translation.

  6. The efficacy and plasma profiles of abamectin plus levamisole combination anthelmintics administered as oral and pour-on formulations to cattle.

    PubMed

    Leathwick, D M; Miller, C M; Sauermann, C W; Candy, P M; Ganesh, S; Fraser, K; Waghorn, T S

    2016-08-30

    In phase I, faecal egg count reduction tests (FECRT) were conducted on six commercial cattle farms to compare the performance of two pour-on and one oral combination anthelmintic. Groups of 12-15 calves were sampled for faecal nematode egg count (FEC) before treatment with either abamectin oral, levamisole oral, an abamectin+levamisole oral combination or one of two abamectin+levamisole combination pour-ons. Samples were collected again 14days after treatment to calculate the percentage reduction in FEC. The proportions of infective stage larvae (L3) in faecal cultures were used to apportion egg counts to, and calculate efficacy against, the main parasite genera. Abamectin oral was effective against Ostertagia except on one farm where resistance was indicated, but had reduced efficacy against Cooperia on four farms. Levamisole oral was effective against Cooperia on all farms, but had variable efficacy against Ostertagia. The abamectin+levamisole oral was effective against both species on all farms. The abamectin+levamisole pour-ons were effective on some farms but not on others. In particular, pour-on 2 failed to achieve 95% efficacy in 45% of evaluations, 4/6 against Cooperia and 1/5 against Ostertagia. On some farms the combination pour-ons were less effective than their constituent actives administered alone as orals. In phase II, 8 groups of 6 calves, grazing parasite-free pasture, were infected with putatively ML-resistant isolates of Cooperia oncophora and Ostertagia ostertagi. Once infections were patent groups were treated with oral or pour-on formulations of abamectin alone, levamisole alone, abamectin+levamisole (two pour-ons) or remained untreated. Blood samples were collected for analysis and after 8days all calves were euthanized and abomasa and intestines recovered for worm counts. All treatments were effective against O. ostertagi and all treatments containing levamisole were effective against C. oncophora. Animals treated with the oral combination

  7. Cancer procoagulant (CP) in lung cancer.

    PubMed

    Rucińska, M; Skrzydlewski, Z; Zaremba, E; Furman, M; Kasacka, I

    1997-01-01

    Lung cancers (squamous cell carcinoma, microcellular carcinoma, macrocellular carcinoma and adenocarcinoma) show procoagulant activity. It mainly depends on the presence of cancer procoagulant (CP) in lung cancer cells.

  8. Lymphedema After Surgery in Patients With Endometrial Cancer, Cervical Cancer, or Vulvar Cancer

    ClinicalTrials.gov

    2014-12-23

    Lymphedema; Stage IA Cervical Cancer; Stage IA Uterine Corpus Cancer; Stage IA Vulvar Cancer; Stage IB Cervical Cancer; Stage IB Uterine Corpus Cancer; Stage IB Vulvar Cancer; Stage II Uterine Corpus Cancer; Stage II Vulvar Cancer; Stage IIA Cervical Cancer; Stage IIIA Vulvar Cancer; Stage IIIB Vulvar Cancer; Stage IIIC Vulvar Cancer; Stage IVB Vulvar Cancer

  9. Pertinence de l'implantation de la filiere granule de bois pour le Quebec

    NASA Astrophysics Data System (ADS)

    Tremblay, Stephan

    Les spécialistes avancent que le marché mondial de l'énergie en forte demande et en offre limitée nécessitera bientôt toutes les formes d'énergie disponibles. Le granulé de bois est une forme de bioénergie principalement utilisée pour le chauffage des bâtiments et pourrait être davantage considéré dans l'offre énergétique du Québec. Comme le Québec est un territoire où il fait froid et donc susceptible de pouvoir se tourner vers cette forme d'énergie, l'objectif de ce mémoire est d'en analyser les avantages. Pour ce faire, nous commencerons par démontrer la croissance des besoins énergétiques sur les plans national et international et dresser un portrait des différentes formes d'énergies consommées au Québec. Puisque la majorité des Québécois chauffent leurs bâtiments à l'hydroélectricité, nous analyserons à travers le plan d'approvisionnement d'Hydro-Québec le portrait de la production et de la consommation de cette forme d'énergie renouvelable. Cela nous permettra de constater le défi face à la gestion de surplus importants, sauf pendant la période hivernale, et ce faisant, l'obligation de la société d'État d'utiliser davantage ses centrales au gaz ou de se tourner vers l'importation de l'électricité. Dans la même lignée, un regard sera porté sur les perspectives d'utilisation de l'hydroélectricité sur les plans de la production d'aluminium, de l'exportation et de l'utilisation dans l'électrification des transports au Québec. Cette analyse se fera dans l'objectif de s'interroger sur la pertinence d'utiliser cette source d'énergie dans le chauffage plutôt que dans des secteurs plus créateurs de richesse. Nous poserons ensuite l'hypothèse que le granulé de bois pourrait être un bon substitut à une autre forme d'énergie utilisée dans le chauffage, soit le mazout. Avant de dresser un portrait de ce combustible fossile, nous ferons celui de la production et de la consommation de granulés sur les plans r

  10. Diagnostic du plasma d'ablation laser pour lacroissance de couches minces

    NASA Astrophysics Data System (ADS)

    Basillais, A.; Benzerga, R.; Le Menn, E.; Mathias, J.; Boulmer-Leborgne, C.; Perrière, J.

    2003-06-01

    Dans ce travail, nous nous sommes intéressés à la croissance de films de nitrure d'aluminium par ablation laser d'une cible d'aluminium assistée par un plasma d'azote créé par une décharge RF. Parallèlement, la spectroscopie d'émission a été largement utilisée pour le diagnostic de la plume plasma et du plasma de décharge RF afin de trouver des informations permettant de suivre le phénomène de croissance et qui seraient la signature d'un film de bonne stœchiométrie et qualité cristalline ou son contraire. Ainsi, l'étude de l'émission de la raie d'oxygène à 777nm dans le plasma d'ablation laser a permis d'expliquer le mécanisme de contamination des films par l'oxygène. De la même façon, nous nous sommes intéressés à l'émission de l'azote atomique dans la plume plasma et proche du substrat, dans la zone sombre où ces espèces participent directement à la croissance du film. Ainsi l'étude parallèle de l'influence des paramètres expérimentaux sur la qualité des films et sur la composition du plasma nous a permis d'optimiser le dispositif expérimental.

  11. Systeme microfluidique d'analyse sanguine en temps reel pour l'imagerie moleculaire chez le petit animal

    NASA Astrophysics Data System (ADS)

    Convert, Laurence

    De nouveaux radiotraceurs sont continuellement développés pour améliorer l'efficacité diagnostique en imagerie moléculaire, principalement en tomographie d'émission par positrons (TEP) et en tomographie d'émission monophotonique (TEM) dans les domaines de l'oncologie, de la cardiologie et de la neurologie. Avant de pouvoir être utilisés chez les humains, ces radiotraceurs doivent être caractérisés chez les petits animaux, principalement les rats et les souris. Pour cela, de nombreux échantillons sanguins doivent être prélevés et analysés (mesure de radioactivité, séparation de plasma, séparation d'espèces chimiques), ce qui représente un défi majeur chez les rongeurs à cause de leur très faible volume sanguin (˜1,4 ml pour une souris). Des solutions fournissant une analyse partielle sont présentées dans la littérature, mais aucune ne permet d'effectuer toutes les opérations dans un même système. Les présents travaux de recherche s'insèrent dans le contexte global d'un projet visant à développer un système microfluidique d'analyse sanguine complète en temps réel pour la caractérisation des nouveaux radiotraceurs TEP et TEM. Un cahier des charges a tout d'abord été établi et a permis de fixer des critères quantitatifs et qualitatifs à respecter pour chacune des fonctions de la puce. La fonction de détection microfluidique a ensuite été développée. Un état de l'art des travaux ayant déjà combiné la microfluidique et la détection de radioactivité a permis de souligner qu'aucune solution existante ne répondait aux critères du projet. Parmi les différentes technologies disponibles, des microcanaux en résine KMPR fabriqués sur des détecteurs semiconducteurs de type p-i-n ont été identifiés comme une solution technologique pour le projet. Des détecteurs p-i-n ont ensuite été fabriqués en utilisant un procédé standard. Les performances encourageantes obtenues ont mené à initier un projet de ma

  12. Une alternative au cobalt pour la synthese de nanotubes de carbone monoparoi par plasma inductif thermique

    NASA Astrophysics Data System (ADS)

    Carrier, Jean-Francois

    Les nanotubes de carbone de type monoparoi (C-SWNT) sont une classe recente de nanomateriaux qui ont fait leur apparition en 1991. L'interet qu'on leur accorde provient des nombreuses proprietes d'avant-plan qu'ils possedent. Leur resistance mecanique serait des plus rigide, tout comme ils peuvent conduire l'electricite et la chaleur d'une maniere inegalee. Non moins, les C-SWNT promettent de devenir une nouvelle classe de plateforme moleculaire, en servant de site d'attache pour des groupements reactifs. Les promesses de ce type particulier de nanomateriau sont nombreuses, la question aujourd'hui est de comment les realiser. La technologie de synthese par plasma inductif thermique se situe avantageusement pour la qualite de ses produits, sa productivite et les faibles couts d'operation. Par contre, des recherches recentes ont permis de mettre en lumiere des risques d'expositions reliees a l'utilisation du cobalt, comme catalyseur de synthese; son elimination ou bien son remplacement est devenu une preoccupation importante. Quatre recettes alternatives ont ete mises a l'essai afin de trouver une alternative plus securitaire a la recette de base; un melange catalytique ternaire, compose de nickel, de cobalt et d'oxyde d'yttrium. La premiere consiste essentiellement a remplacer la proportion massique de cobalt par du nickel, qui etait deja present dans la recette de base. Les trois options suivantes contiennent de nouveaux catalyseurs, en remplacement au Co, qui sont apparus dans plusieurs recherches scientifiques au courant des dernieres annees: le dioxyde de zircone (ZrO2), dioxyde de manganese (MnO2) et le molybdene (Mo). La methode utilisee consiste a vaporiser la matiere premiere, sous forme solide, dans un reacteur plasma a haute frequence (3 MHz) a paroi refroidi. Apres le passage dans le plasma, le systeme traverse une section dite de "croissance", isolee thermiquement a l'aide de graphite, afin de maintenir une certaine plage de temperature favorable a la

  13. Lung Cancer Screening

    MedlinePlus

    ... Cancer Treatment Small Cell Lung Cancer Treatment Lung cancer is the leading cause of cancer death in the United States. Lung cancer is ... non- skin cancer in the United States. Lung cancer is the leading cause of cancer death in men and in women. ...

  14. Cancer in Patients With Gabapentin (GPRD)

    ClinicalTrials.gov

    2012-02-02

    Pain, Neuropathic; Epilepsy; Renal Pelvis Cancer; Pancreatic Cancer; Breast Cancer; Nervous System Cancer; Chronic Pancreatitis; Stomach Cancer; Renal Cell Carcinoma; Diabetes; Bladder Cancer; Bone and Joint Cancer; Penis Cancer; Anal Cancer; Cancer; Renal Cancer

  15. Breast Cancer Overview

    MedlinePlus

    ... Breast Cancer - Overview Request Permissions Print to PDF Breast Cancer - Overview Approved by the Cancer.Net Editorial Board , ... bean-shaped organs that help fight infection. About breast cancer Cancer begins when healthy cells in the breast ...

  16. Types of Breast Cancers

    MedlinePlus

    ... the key statistics about breast cancer? Types of breast cancers Breast cancer can be separated into different types ... than invasive ductal carcinoma. Less common types of breast cancer Inflammatory breast cancer This uncommon type of invasive ...

  17. Basic Cancer Terms

    MedlinePlus

    ... Statistics Cancer Terms: Treatment Cancer Terms: After Treatment Online Medical Dictionaries Diagnosing Cancer Managing Your Care Financial Considerations How Cancer is Treated Side Effects Dating, Sex, and Reproduction Advanced Cancer For Children For ...

  18. Cancer Terms: After Treatment

    MedlinePlus

    ... Statistics Cancer Terms: Treatment Cancer Terms: After Treatment Online Medical Dictionaries Diagnosing Cancer Managing Your Care Financial Considerations How Cancer is Treated Side Effects Dating, Sex, and Reproduction Advanced Cancer For Children For ...

  19. Primary prevention of cancer

    SciTech Connect

    Eylenbosch, W.J. ); Depoorter, A.M. ); Van Larebeke, N. )

    1988-01-01

    This book is organized under the following headings: Cancer registration in Europe; Coordination and role in cancer control, Chemoprevention of cancer, Smokeless tobacco and cancer, Occupational risks from radiation, Stochholm cancer prevention program.

  20. What Is Ovarian Cancer?

    MedlinePlus

    ... the key statistics about ovarian cancer? What is ovarian cancer? Cancer starts when cells in the body begin ... section . Other cancers that are similar to epithelial ovarian cancer Primary peritoneal carcinoma Primary peritoneal carcinoma (PPC) is ...

  1. Stomach (Gastric) Cancer Screening

    MedlinePlus

    ... Treatment Stomach Cancer Prevention Stomach Cancer Screening Research Stomach (Gastric) Cancer Screening (PDQ®)–Patient Version What is ... These are called diagnostic tests . General Information About Stomach (Gastric) Cancer Key Points Stomach cancer is a ...

  2. Living with Prostate Cancer

    MedlinePlus

    ... pork, lamb, and processed meat (such as hot dogs, sausage, and bacon); and low in high-fat ... ACS Bookstore Cancer Information Cancer Basics Cancer Prevention & Detection Signs & Symptoms of Cancer Treatments & Side Effects Cancer ...

  3. Photodynamic therapy for cancer

    MedlinePlus

    ... Cancer of the esophagus-photodynamic; Esophageal cancer-photodynamic; Lung cancer-photodynamic ... the light at the cancer cells. PDT treats cancer in the: Lungs, using a bronchoscope Esophagus, using upper endoscopy Doctors ...

  4. What Is Bone Cancer?

    MedlinePlus

    ... our document called Osteosarcoma . Chondrosarcoma: Chondrosarcoma (KON-droh-sar-KOH-muh) is a cancer of cartilage cells. ... AdditionalResources Other Resources and References Cancer Information Cancer Basics Cancer Prevention & Detection Signs & Symptoms of Cancer Treatments & ...

  5. Children's cancer centers

    MedlinePlus

    Pediatric cancer center; Pediatric oncology center; Comprehensive cancer center ... Treating childhood cancer is not the same as treating adult cancer. The cancers are different. So are the treatments and the ...

  6. Tests for Liver Cancer

    MedlinePlus

    ... cancer Next Topic Liver cancer stages Tests for liver cancer If you have some of the signs ... cancer has come back (recurred). Other blood tests Liver function tests (LFTs): Because liver cancer often develops ...

  7. Guides d'ondes infrarouges pour applications en télécommunications, capteurs chimiques et biochimiques

    NASA Astrophysics Data System (ADS)

    Smektala, F.; Bureau, B.; Adam, J. L.; Lucas, J.

    2002-06-01

    Les énergies de phonons élevés des verres à base de silice limitent leurs applications dans l'infrarouge. Il devient donc incontournable de créer des verres à plus faible énergie de phonons pour développer une optique passive guidée opérationnelle dans l'IR moyen et pour réaliser de nouveaux guide d'ondes optiques activés par des lanthanides pouvant jouer le rôle soit d'amplificateurs optiques soit de fibres lasers. Les compositions de verres stables répondant à ces critères sont exceptionnelles et appartiennent aux familles chimiques des fluorures et des chalcogénures. Les verres de fluorures, convenablement dopés par des terres rares, ont permis la réalisation d'amplificateurs optiques opérant dans la fenêtre télecom de la silice (1.3 μm avec le praséodyme, 1.45 μm avec le thulium et 1.55 μm avec l'erbium. Les verres de chalcogénures permettent la réalisation de fibres opérationnelles jusqu'à 12 μm mais seulement pour des applications courtes distances telles que le transport d'énergie moyenne, la radiométrie à l'ambiante et la spectrométrie IR déportée par fibre optique de molécules chimiques ou de tissus biologiques.

  8. Utilisation de la mélatonine pour le sommeil chez les enfants en bonne santé

    PubMed Central

    Janjua, Irvin; Goldman, Ran D.

    2016-01-01

    Résumé Question Une maman a amené son garçon de 12 ans me consulter à mon bureau. Elle s’inquiète, car il a de la difficulté à s’endormir presque tous les soirs. Elle travaille par quarts et elle prend elle-même de la mélatonine pour l’aider à s’endormir. Elle m’a demandé si son garçon pouvait aussi prendre de la mélatonine. Quels sont les recommandations et les éléments à considérer avant d’utiliser la mélatonine chez les enfants et les adolescents en bonne santé? Réponse L’insomnie est rapportée chez jusqu’à un quart des enfants en bonne santé et chez les trois quarts des enfants atteints d’une affection psychiatrique ou neurodéveloppementale, ce qui entraîne des conséquences négatives. Pour les enfants atteints du syndrome de retard de phase du sommeil, la mélatonine pourrait s’avérer utile lorsque jumelée à une évaluation de l’insomnie et à un suivi régulier. La mélatonine pourrait être envisagée pour des enfants sans diagnostic d’insomnie qui ont une bonne hygiène du sommeil. Bien qu’elle semble sans danger, il n’existe pas de données probantes en faveur de l’emploi systématique de la mélatonine chez les enfants en bonne santé.

  9. Ontario-wide Cancer TArgeted Nucleic Acid Evaluation

    ClinicalTrials.gov

    2016-09-14

    Breast Cancer; Lung Cancer; Colorectal Cancer; Melanoma; Gynecological Cancer; Genitourinary Cancer; Pancreatobiliary Cancer; Gastrointestinal Cancer; Head and Neck Cancer; Rare Cancer; Unknown Primary Cancer

  10. Anal cancer

    MedlinePlus

    ... common type of anal cancer. It starts in cells that line the anal canal and grow into the deeper tissue. Cloacogenic carcinoma. Almost all the rest of anal cancers are tumors that start in cells lining the area between the anus and rectum. ...

  11. Oral Cancer

    MedlinePlus

    ... What are the effects of oral cancer on speech and swallowing? The effects of cancer on speech and swallowing depend on the location and size ... movement. This could result in unclear production of speech sounds made with the lips such as /p/, / ...

  12. Vulvar Cancer

    MedlinePlus

    ... sex painful and difficult. If found early, vulvar cancer has a high cure rate and the treatment options involve less surgery. ... people may also need radiation therapy. When vulvar cancer is found and treated early, the cure rate is over 90%. The key to a ...

  13. Interdiffusion de puits quantiques controlee par irradiation laser excimere pour l'integration de composants photoniques

    NASA Astrophysics Data System (ADS)

    Genest, Jonathan

    L'integration de composants discrets sur un systeme unique, tel une puce electronique, augmente les performances totales du systeme, fait apparaitre de nouvelles fonctionnalites et diminue les couts associes a la fabrication des dispositifs. Ces ameliorations, appliquees au secteur de la microelectronique, sont grandement responsables des avancements importants qu'ont connus les technologies de l'information et des communications au cours des dernieres annees. Puisque la fabrication de circuits photoniques integres necessite l'integration de structures ayant des bandes interdites differentes a partir d'une meme puce semiconductrice, leur niveau d'integration est bien inferieur que celui atteint pour un microprocesseur standard. Parmi les techniques ayant le potentiel de fabriquer des circuits photoniques integres monolithiquement, l'interdiffusion de puits quantique post-expitaxial controlee spatialement augmente la bande interdite d'une heterostructure semiconductrice a l'interieur de regions definies. Le processus d'interdiffusion, active thermiquement, est accelere par la diffusion d'impuretes et de defauts ponctuels tels que les lacunes et les interstitiels. L'hypothese de depart de mes travaux de doctorat suppose que la radiation laser ultra-violette module la diffusion et la generation de defauts ponctuels dans les heterostructures reposant sur les technologies a base de GaAs et d'InP et, consequemment, controle spatialement l'interdiffusion de puits quantiques. Nous avons demontre que lorsque appliquee sur des heterostructures a base de GaAs, l'irradiation laser excimere l'interdiffusion en favorisant la croissance d'un stresseur de surface qui empeche la diffusion des defauts ponctuels vers les puits quantiques. Nous avons souligne l'influence de la vapeur d'eau physisorbee sur la croissance du stresseur et avons determine la resolution spatiale de la technique. Dans les heterostructures basees sur les technologies InP, meme sous le seuil d'ablation, l

  14. Developpement d'un vibrateur acoustique pour precipiter les defauts latents de circuits electroniques

    NASA Astrophysics Data System (ADS)

    Lafleur, Francois

    2003-08-01

    Le procede de deverminage, ou Environmental Stress Screening (ESS), est employe principalement dans le domaine de l'electronique pour reduire les mortalites infantiles des produits avant leur livraison. Il utilise usuellement des stimulations environnementales telles que les vibrations ou la temperature produites a l'aide d'equipements conventionnels d'essais qui sont tres couteux et difficiles a implanter. Le but de cette recherche est le developpement d'une nouvelle methode d'excitation vibratoire des plaques de circuits electroniques a moindre cout par l'emploi de l'excitation acoustique. Le projet a mene au developpement d'un vibrateur acoustique pouvant etre utilise lors d'implantations du procede ESS en milieu industriel. L'utilisation de cette nouvelle technologie et des methodes novatrices de personnalisation des spectres ESS proposees dans cette these permettent la precipitation de defaillances latentes presentes dans les produits electroniques de facon efficace et securitaire et ce, a moindre cout par rapport aux technologies concurrentes. La methodologie des travaux presentes dans cette these inclus: (1) La generation acoustique des vibrations sur les circuits; (2) L'analyse modale acoustique des circuits par des methodes a reference unique et a references multiples; (3) La precipitation de defauts latents typiques des circuits electroniques; (4) Une methode d'individualisation des spectres vibratoires tenant compte des caracteristiques structurelles des circuits; (5) La presentation de la configuration de l'equipement acoustique et les resultats d'implantation du procede. Nonobstant la fabrication, l'installation et la mise en service d'un equipement en milieu industriel (depuis le mois de mai 2002), ces travaux ont permis l'obtention de trois familles de brevets et la publication de six articles de conference: trois portant sur l'analyse modale a reference unique, un portant sur l'analyse modale a references multiples, un autre portant sur la

  15. Développement d'outils de mesure pour l'amélioration du procédé d'impression offset

    NASA Astrophysics Data System (ADS)

    Boumaïza, K.; Baudin, G.; Catusse, R.; Viallet, A.

    1999-03-01

    The offset printing process rests primarily on the balance between ink and damping solution. However, this balance remains difficult to realize. The corresponding wastes of time and into consumable (ink, paper and damping solution) are harmful for the industrialist, the consumer and the environment. The main feature of this work is to control and thus to optimize these flux. With this intention, two optical sensors functioning in reflection were developed. A laser with receiving photodiode for the control of damping solution film thickness, and an optical fiber related to a photoelectric sensor for control of ink film thickness. The current study aims at the calibration of these two sensors for respectively the control of water and ink flux in the offset press. Le procédé d'impression offset repose essentiellement sur l'équilibre entre la solution de mouillage et l'encre. Toutefois, cet équilibre reste une tâche difficile à réaliser. Les pertes en temps et en consommables (encre, papier, solution de mouillage) correspondantes sont nuisibles à la fois pour l'industriel, le consommateur et l'environnement. L'objectif de ce travail est de contrôler et donc d'optimiser ces flux pour un tirage donné. Pour ce faire, deux capteurs de type optique fonctionnant en réflexion ont été développés. Un laser avec photodiode réceptrice pour le contrôle du film de solution de mouillage, et une fibre optique liée à un capteur photoélectrique pour le contrôle du film d'encre. L'étude actuelle vise la mise en ouvre et l'étalonnage de ces deux capteurs pour la mesure et le contrôle des films respectifs d'eau et d'encre dans la presse offset.

  16. Ovarian cancer.

    PubMed

    Matulonis, Ursula A; Sood, Anil K; Fallowfield, Lesley; Howitt, Brooke E; Sehouli, Jalid; Karlan, Beth Y

    2016-01-01

    Ovarian cancer is not a single disease and can be subdivided into at least five different histological subtypes that have different identifiable risk factors, cells of origin, molecular compositions, clinical features and treatments. Ovarian cancer is a global problem, is typically diagnosed at a late stage and has no effective screening strategy. Standard treatments for newly diagnosed cancer consist of cytoreductive surgery and platinum-based chemotherapy. In recurrent cancer, chemotherapy, anti-angiogenic agents and poly(ADP-ribose) polymerase inhibitors are used, and immunological therapies are currently being tested. High-grade serous carcinoma (HGSC) is the most commonly diagnosed form of ovarian cancer and at diagnosis is typically very responsive to platinum-based chemotherapy. However, in addition to the other histologies, HGSCs frequently relapse and become increasingly resistant to chemotherapy. Consequently, understanding the mechanisms underlying platinum resistance and finding ways to overcome them are active areas of study in ovarian cancer. Substantial progress has been made in identifying genes that are associated with a high risk of ovarian cancer (such as BRCA1 and BRCA2), as well as a precursor lesion of HGSC called serous tubal intraepithelial carcinoma, which holds promise for identifying individuals at high risk of developing the disease and for developing prevention strategies. PMID:27558151

  17. SUMMARY REPORT FOR THE ANALYSIS OF THE SLUDGE BATCH 6 (MACROBATCH 7) DWPF POUR STREAM GLASS SAMPLE FOR CANISTER S03472

    SciTech Connect

    Johnson, F.

    2012-01-23

    In order to comply with the Waste Acceptance Specifications in Sludge Batch 6 (Macrobatch 7), Savannah River National Laboratory personnel performed characterization analyses on the Defense Waste Processing Facility (DWPF) pour stream glass sample collected while filling canister S03472. This report summarizes results of the characterization, which indicate that the DWPF produced glass that is significantly more durable than the Environmental Assessment glass. Results and further details are documented in 'Analysis of DWPF Sludge Batch 6 (Macrobatch 7) Pour Stream Glass Samples,' SRNL-STI-2011-00555.

  18. SUMMARY REPORT FOR THE ANALYSIS OF THE SLUDGE BATCH 7A (MACROBATCH 8) DWPF POUR STREAM GLASS SAMPLE FOR CANISTER S03619

    SciTech Connect

    Johnson, F.

    2012-05-01

    In order to comply with the Waste Acceptance Specifications in Sludge Batch 7a (Macrobatch 8), Savannah River National Laboratory personnel characterized the Defense Waste Processing Facility (DWPF) pour stream glass sample collected while filling canister S03619. This report summarizes the results of the compositional analysis for reportable oxides and radionuclides, and the normalized Product Consistency Test (PCT) results. The PCT responses indicate that the DWPF produced glass that is significantly more durable than the Environmental Assessment glass. Results and further details are documented in 'Analysis of DWPF Sludge Batch 7a (Macrobatch 8) Pour Stream Samples,' SRNL-STI-2012-00017.

  19. Analyse de la motivation pour les mathematiques d'eleves du secondaire participant a une activite de programmation informatique

    NASA Astrophysics Data System (ADS)

    Ouellette, Jean-Michel

    Au Quebec, le decrochage scolaire cause par un manque de motivation de la part des eleves est une preoccupation actuelle. Dans une societe de savoirs ou les technologies prennent une place de plus en plus grande, il apparait important d'explorer toutes les pistes de travail quant a l'amelioration de la motivation scolaire des jeunes. Plus precisement, sachant qu'il existe des liens concrets entre la programmation informatique et les mathematiques, nous avons analyse l'apport possible de l'apprentissage de la programmation informatique a la motivation pour l'apprentissage des mathematiques. Trois eleves de troisieme secondaire ont participe a cette etude multicas. Selon les resultats d'analyse, tous les eleves ont vecu une amelioration de leur motivation a apprendre les mathematiques. A la lumiere de l'analyse de ces resultats, nous proposons une explication relativement aux liens possibles entre la participation des eleves a une activite parascolaire de programmation informatique et l'amelioration de leur motivation pour l'apprentissage des mathematiques.

  20. A Novel Methodology for the Synthesis of Acyloxy Castor Polyol Esters: Low Pour Point Lubricant Base Stocks.

    PubMed

    Kamalakar, Kotte; Mahesh, Goli; Prasad, Rachapudi B N; Karuna, Mallampalli S L

    2015-01-01

    Castor oil, a non-edible oil containing hydroxyl fatty acid, ricinoleic acid (89.3 %) was chemically modified employing a two step procedure. The first step involved acylation (C(2)-C(6) alkanoic anhydrides) of -OH functionality employing a green catalyst, Kieselguhr-G and solvent free medium. The catalyst after reaction was filtered and reused several times without loss in activity. The second step is esterification of acylated castor fatty acids with branched mono alcohol, 2-ethylhexanol and polyols namely neopentyl glycol (NPG), trimethylolpropane (TMP) and pentaerythritol (PE) to obtain 16 novel base stocks. The base stocks when evaluated for different lubricant properties have shown very low pour points (-30 to -45°C) and broad viscosity ranges 20.27 cSt to 370.73 cSt, higher viscosity indices (144-171), good thermal and oxidative stabilities, and high weld load capacities suitable for multi-range industrial applications such as hydraulic fluids, metal working fluids, gear oil, forging and aviation applications. The study revealed that acylated branched mono- and polyol esters rich in monounsaturation is desirable for developing low pour point base stocks.

  1. Spectroscopie VUV sub-picoseconde : un détecteur haute cadence et un monochromateur pour impulsions femtosecondes

    NASA Astrophysics Data System (ADS)

    Martin, P.; Belsky, A.; Zinin, E.; Philippov, A.; Idir, M.; Moreno, T.; Darpentigny, G.; Salin, F.

    2003-06-01

    La très faible durée des impulsions harmoniques VUV est incompatible avec les systèmes dispersifs “classiques” existant comme les monochromateurs VUV utilisés actuellement, principalement auprès des sources de rayonnement synchrotron. Nous avons conçu un monochromateur VUV (domaine spectral: visible-30nm, 4-40eV) capable de fonctionner sans dispersion temporelle d'impulsions de quelques dizaines de fs. Son principe est basé sur l'utilisation de deux réseaux fonctionnant dans des ordres opposés en configuration optique de type Seya-Namioka, avec des optiques toriques pour la pré et post focalisation. Compte tenu des contraintes imposées le pouvoir de résolution attendu (environ 100) est suffisant pour des applications en spectroscopie VUV. Dans le cadre de cette thématique développée au CELIA et plus particulièrement en ce qui concerne l'aspect dynamique de la relaxation électronique, nous présentons ici également un détecteur de photons de grande sensibilité appelé “dissecteur” dont la résolution actuelle est d'environ 13ps mais qui sera prochainement portée à 1ps.

  2. A Novel Methodology for the Synthesis of Acyloxy Castor Polyol Esters: Low Pour Point Lubricant Base Stocks.

    PubMed

    Kamalakar, Kotte; Mahesh, Goli; Prasad, Rachapudi B N; Karuna, Mallampalli S L

    2015-01-01

    Castor oil, a non-edible oil containing hydroxyl fatty acid, ricinoleic acid (89.3 %) was chemically modified employing a two step procedure. The first step involved acylation (C(2)-C(6) alkanoic anhydrides) of -OH functionality employing a green catalyst, Kieselguhr-G and solvent free medium. The catalyst after reaction was filtered and reused several times without loss in activity. The second step is esterification of acylated castor fatty acids with branched mono alcohol, 2-ethylhexanol and polyols namely neopentyl glycol (NPG), trimethylolpropane (TMP) and pentaerythritol (PE) to obtain 16 novel base stocks. The base stocks when evaluated for different lubricant properties have shown very low pour points (-30 to -45°C) and broad viscosity ranges 20.27 cSt to 370.73 cSt, higher viscosity indices (144-171), good thermal and oxidative stabilities, and high weld load capacities suitable for multi-range industrial applications such as hydraulic fluids, metal working fluids, gear oil, forging and aviation applications. The study revealed that acylated branched mono- and polyol esters rich in monounsaturation is desirable for developing low pour point base stocks. PMID:26582154

  3. A New Direct-Pour In-Mold (DPI) Technology for Producing Ductile and Compacted Graphite Iron Castings.

    SciTech Connect

    Jason Hitchings; Jay R. Hitchings

    2007-07-20

    A new "Direct Pour In-Mold" (DPI) Magnesium treatment technology has been developed that can produce both Nodular and Compacted Graphite iron. The DPI technology converts the standard horizontal runner system into a vertical one, by placing a Magnesium Ferrosilicon treatment alloy and molten metal filter into a specially designed container. The DPI container is easily placed into either vertically or horizontally parted molds, and then a base metal can be poured directly into it. The metal is treated and filtered as it passes through, and then proceeds directly into a runner or casting cavity. Various sizes of containers provide all of the necessary components required to deliver a range of weights of treated and filtered metal at accurate and consistent flow rates. The DPI containers provide energy savings over competing techniques, increased mold yields, very high Magnesium recovery, zero Magnesium fume, and no post inoculation is required. By treating the metal just prior to it entering a casting cavity many other benefits and advantages are also realized.

  4. Consensus formalisé: recommandations de pratiques cliniques pour la prise en charge de la migraine du patient adulte africain

    PubMed Central

    Ahmed, Mahmoud Ait Kaci; Haddad, Monia; Kouassi, Beugré; Ouhabi, Hamid; Serrie, Alain

    2016-01-01

    La migraine est une céphalée primaire (selon les derniers critères de l'International Headache Society) qui affecte environ 8% de la population africaine. Les femmes sont plus fréquemment touchées que les hommes et les crises apparaissent le plus souvent avant l’âge de 40 ans. Bien qu'un certain nombre de traitements, de mesure hygiéno-diététiques, et d'autres méthodes non pharmacologiques permettent de limiter l'intensité et la fréquence des crises, la prise en charge médicamenteuse de la crise de migraine est très souvent nécessaire. La disponibilité des traitements et l'accès aux soins diffèrent sur le continent africain et ont conduit à la réalisation du 1er consensus d'experts pour la prise en charge du patient adulte africain. Destiné aux praticiens, ce travail collaboratif multinational a pour objectif de fournir 16 recommandations de pratiques cliniques simples, fondées sur les preuves, et adaptées aux conditions de l'exercice médical en Afrique. PMID:27642420

  5. Prescrire du cannabis fumé pour la douleur chronique non cancéreuse

    PubMed Central

    Kahan, Meldon; Srivastava, Anita; Spithoff, Sheryl; Bromley, Lisa

    2014-01-01

    Résumé Objectif Offrir des conseils préliminaires sur la prescription de cannabis fumé pour la douleur chronique avant la publication de lignes directrices officielles. Qualité des données Nous avons examiné les ouvrages scientifiques sur l’efficacité analgésique du cannabis fumé et les dommages causés par la consommation de cannabis à des fins médicales et récréatives. Nous avons élaboré des recommandations concernant les indications et les contre-indications du cannabis fumé, les précautions à prendre et son dosage et nous avons classé les recommandations en fonction du niveau des données probantes. La plupart des données probantes sont de niveau II (études observationnelles bien effectuées) et de niveau III (opinion d’experts). Message principal Le cannabis fumé pourrait être indiqué chez des patients souffrant de douleurs neuropathiques sévères qui n’ont pas répondu à des essais suffisants de cannabinoïdes pharmaceutiques et d’analgésiques standards (données probantes de niveau II). Le cannabis fumé est contre-indiqué chez les patients de 25 ans ou moins (données probantes de niveau II); ceux qui font actuellement ou ont fait par le passé une psychose ou encore ont de forts antécédents familiaux de psychose (données probantes de niveau II); ceux qui ont ou ont eu un problème de consommation de cannabis (données probantes de niveau III); ceux qui ont un problème actuel de toxicomanie ou d’alcoolisme (données probantes de niveau III); ceux qui ont une maladie cardiovasculaire ou respiratoire (données probantes de niveau III); ou celles qui sont enceintes ou planifient une grossesse (données probantes de niveau II). Il devrait être utilisé avec précaution par les patients qui fument du tabac (données probantes de niveau II), qui sont à risque accru de maladies cardiovasculaires (données probantes de niveau III), qui ont des troubles d’anxiété ou de l’humeur (données probantes de niveau II) ou

  6. Breast Cancer -- Male

    MedlinePlus

    ... Home > Types of Cancer > Breast Cancer in Men Breast Cancer in Men This is Cancer.Net’s Guide to Breast Cancer in Men. Use the menu below to choose ... social workers, and patient advocates. Cancer.Net Guide Breast Cancer in Men Overview Statistics Risk Factors and Prevention ...

  7. Risks of Breast Cancer Screening

    MedlinePlus

    ... of Breast & Gynecologic Cancers Breast Cancer Screening Research Breast Cancer Screening (PDQ®)–Patient Version What is screening? Go ... cancer screening: Cancer Screening Overview General Information About Breast Cancer Key Points Breast cancer is a disease in ...

  8. Risks of Endometrial Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  9. Risks of Prostate Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  10. Risks of Cervical Cancer Screening

    MedlinePlus

    ... Laboratory for Cancer Research Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer ... Centers Frederick National Lab Partners & Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer ...

  11. Cancer du sein historique à propos d'un cas!!! Comment réagir

    PubMed Central

    Laghzaoui, Omar

    2016-01-01

    Le cancer du sein localement avancé est une entité qui se fait rare dans les pays développés alors qu'on continue de recevoir des patientes à un stade avancé dans les pays africains. Nous proposant le cas d'une patiente intellectuelle prise en charge à l'hôpital militaire, Meknès, Maroc; qui a décelé la présence d'un nodule du sein droit par l'autopalpation mais elle n'a consulté le médecin que six mois après, dans un état historique de cancer du sein localement avancé. Le but de notre publication est donc de soulever les anomalies contemporaines aboutissant au retard diagnostic du cancer du sein et de proposer des solutions pour mieux sensibiliser la population. PMID:27642397

  12. Cancer Genetics Services Directory

    MedlinePlus

    ... Overview–for health professionals Research NCI Cancer Genetics Services Directory This directory lists professionals who provide services related to cancer genetics (cancer risk assessment, genetic ...

  13. Suivi après le traitement du cancer du sein

    PubMed Central

    Sisler, Jeffrey; Chaput, Geneviève; Sussman, Jonathan; Ozokwelu, Emmanuel

    2016-01-01

    Résumé Objectif Offrir aux médecins de famille un résumé des recommandations fondées sur les données probantes pour guider les soins aux survivantes traitées pour le cancer du sein. Qualité des données Une recherche documentaire a été effectuée dans MEDLINE entre 2000 et 2016 à l’aide des mots-clés anglais suivants : breast cancer, survivorship, follow-up care, aftercare, guidelines et survivorship care plans, en se concentrant sur la revue des lignes directrices publiées récemment par les organismes nationaux de cancérologie. Les données étaient de niveaux I à III. Message principal Les soins aux survivantes comportent 4 facettes : surveillance et dépistage, prise en charge des effets à long terme, promotion de la santé et coordination des soins. La surveillance des récidives ne se traduit que par une mammographie annuelle, et le dépistage d’autres cancers doit suivre les lignes directrices basées sur la population. La prise en charge des effets à long terme du cancer et de son traitement aborde des problèmes courants tels la douleur, la fatigue, le lymphœdème, la détresse et les effets indésirables des médicaments, de même que les préoccupations à long terme comme la santé du cœur et des os. La promotion de la santé met en relief les bienfaits de l’activité chez les survivantes du cancer, avec l’accent mis sur l’activité physique. Les soins aux survivantes sont de meilleure qualité lorsque divers services et professionnels de la santé participent aux soins, et le médecin de famille joue un rôle important dans la coordination des soins. Conclusion Les médecins de famille sont de plus en plus souvent les principaux fournisseurs de soins de suivi après le traitement du cancer du sein. Le cancer du sein doit être considéré comme une affection médicale chronique, même chez les femmes en rémission, et les patientes profitent de la même approche que celle utilisée pour les autres affections chroniques en

  14. Caring for patients with surgically resectable cancers: experience from a specialised centre in rural Rwanda.

    PubMed

    Mubiligi, J M; Hedt-Gauthier, B; Mpunga, T; Tapela, N; Okao, P; Harries, A D; Edginton, M E; Driscoll, C; Mugabo, L; Riviello, R; Shulman, L N

    2014-06-21

    Contexte : Centre anticancéreux d'excellence de Butaro (BCCOE), District de Butera, Rwanda.Objectifs : Décrire les caractéristiques, la prise en charge et les résultats à 6 mois de patients adultes se présentant avec des cancers potentiellement extirpables par chirurgie.Schema : Etude rétrospective de cohorte des patients admis entre le 1er juillet et le 31 décembre 2012.Resultats : Sur 278 patients, 76,6% étaient des femmes, 51,4% étaient âgés entre 50 et 74 ans et 75% étaient référés d'un autre district ou d'un hôpital tertiaire du Rwanda. Parmi les 250 patients dont les traitements étaient connus, 115 (46%) ont bénéficié d'une intervention chirurgicale avec ou sans chimiothérapie/radiothérapie. Le temps médian écoulé entre l'admission et la chirurgie était de 21 jours (IQR 2 à 91). Le cancer du sein était le plus fréquent des cancers traités au BCCOE, tandis que les autres cancers (col utérin, colorectal et tumeur cérébrale ou cervicale) étaient généralement opérés dans des hôpitaux tertiaires. Quatre-vingt-dix-neuf patients n'ont eu aucun traitement ; 52% ont été référés à l'extérieur dans les 6 mois, généralement pour un traitement palliatif. A 6 mois, 6,8% étaient décédés ou perdus de vue.Conclusion : De nombreux patients référés au BCCOE pour cancer ont bénéficié d'une intervention chirurgicale. Cependant la prise en charge de tous les cas est confrontée à la limite de capacité chirurgicale et au problème des patients admis tardivement avec un cancer avancé et non extirpable. Cette étude met en lumière les opportunités et les défis de la prise en charge des cancers pour les hôpitaux situés en zone rurale.

  15. Prostate Cancer

    PubMed Central

    Vickers, Andrew J.; Lilja, Hans

    2010-01-01

    Two groundbreaking trials have this year reported conflicting results as to the benefit of screening for prostate cancer. Careful interpretation in the light of contemporary data might, however, reveal the true value of this intervention. PMID:19498406

  16. Metastatic Cancer

    MedlinePlus

    ... Cancer.gov en español Multimedia Publications Site Map Digital Standards for NCI Websites POLICIES Accessibility Comment Policy Disclaimer FOIA Privacy & Security Reuse & Copyright Syndication Services Website Linking U.S. Department of Health ...

  17. Endometrial cancer

    MedlinePlus

    ... before age 12) Starting menopause after age 50 Tamoxifen, a drug used for breast cancer treatment Women ... without progesterone therapy or women who have taken tamoxifen for more than 2 years. Frequent pelvic exams, ...

  18. Childhood Cancer

    MedlinePlus

    ... the circulatory system and the lymphatic system , two systems that are located throughout the body. This makes it hard to treat these cancers by operating on just one area. However, in children with ...

  19. Cancer Clusters

    MedlinePlus

    ... Resources NCI Grants Management Legal Requirements NCI Grant Policies Grants Management Contacts Training Cancer Training at NCI Funding for ... Closeout NCI Grants Management Legal Requirements NCI Grant Policies Grant Management Contacts Other Funding Find NCI funding for small ...

  20. Endometrial Cancer

    MedlinePlus

    Member Login Join Pay Dues Follow us: Women's Health Care Physicians Contact Us My ACOG ACOG Departments Donate ... and is best made in consultation with your health care team. What happens after treatment for endometrial cancer? ...

  1. Cancer treatments

    MedlinePlus

    ... same time or one after the other. Radiation Radiation therapy uses x-rays, particles, or radioactive seeds to ... radiation is most harmful to quickly growing cells, radiation therapy damages cancer cells more than normal cells. This ...

  2. Thyroid cancer

    MedlinePlus

    ... cancer Laryngoscopy (looking inside the throat using a mirror or flexible tube called a laryngoscope placed through ... It may be performed by: Aiming external beam (x-ray) radiation at the thyroid Taking radioactive iodine by ...

  3. Bladder cancer

    MedlinePlus

    ... removing the rest of the bladder Chemotherapy or immunotherapy placed directly into the bladder Stage II and ... IV), chemotherapy is usually given by vein (intravenously). IMMUNOTHERAPY Bladder cancers are often treated with immunotherapy. In ...

  4. Prostate cancer.

    PubMed

    Castillejos-Molina, Ricardo Alonso; Gabilondo-Navarro, Fernando Bernardo

    2016-04-01

    Prostate cancer is the most frequent tumor found in men worldwide and in Mexico in particular. Age and family history are the main risk factors. The diagnosis is made by prostate biopsy in patients with abnormalities detected in their prostate-specific antigen (PSA) levels or digital rectal exam (DRE). This article reviews screening and diagnostic methods as well as treatment options for patients diagnosed with prostate cancer. PMID:27557386

  5. Conception et caracterisation d'un magnetoplasma produit par une onde de surface pour la pulverisation d'echantillons solides

    NASA Astrophysics Data System (ADS)

    Masse, Louis Philippe

    Suite a l'extraordinaire explosion de l'informatique de la derniere decennie, la science et la technologie des materiaux ont pris un essor extraordinaire. Par exemple, il est devenu crucial de concevoir des materiaux a haut degre de purete. Ce besoin a fortement motive le developpement de methodes d'analyse de solides. Traditionnellement, la methode adoptee est l'analyse par torche ICP, mais pour de nombreuses raisons, dont la lenteur de cette methode, la communaute scientifique oeuvrant en chimie analytique recherche des techniques d'analyse de solides directes, rapides et plus sensibles. Parmi les voies possibles, on trouve les methodes basees sur la pulverisation par plasma. Dans ce contexte, nous avons etudie la possibilite et la pertinence d'utiliser un magnetoplasma entretenu par une onde de surface pour pulveriser des solides dans le but de les analyser. Nos travaux portent principalement sur l'etude du comportement du plasma lors de la pulverisation. Nous avons montre que la pulverisation affecte la decharge de diverses facons. En premier lieu, la concentration d'especes provenant du materiau pulverise dans le plasma augmente avec la tension de polarisation. De plus, la concentration d'especes pulverisees diminue lorsque la pression croit, possiblement a cause du redepot. Nous avons aussi montre qu'il etait possible de pulveriser des solides isolants en exploitant le phenomene d'autopolarisation du a l'application d'une tension RF. Nous avons aussi etudie l'effet de la pulverisation sur la temperature et la densite electronique. Ainsi, lors de la pulverisation de metaux tels que le cuivre, la temperature electronique diminue lorsque la tension de polarisation augmente. Ceci est attribuable a l'augmentation de la densite d'especes metalliques neutres facilement ionisables par impact electronique. Nous avons aussi note que la densite electronique augmente avec la concentration d'especes metalliques dans le plasma, ce qui resulte d'un meilleur bilan de

  6. Breast Cancer: Treatment Options

    MedlinePlus

    ... Cancer - Treatment Options Request Permissions Print to PDF Breast Cancer - Treatment Options Approved by the Cancer.Net Editorial ... recommendations for ovarian ablation . Hormonal therapy for metastatic breast cancer Hormonal therapies are also commonly used to treat ...

  7. Surgery for Breast Cancer

    MedlinePlus

    ... Next Topic Breast-conserving surgery (lumpectomy) Surgery for breast cancer Most women with breast cancer have some type ... Relieve symptoms of advanced cancer Surgery to remove breast cancer There are two main types of surgery to ...

  8. Learning about Breast Cancer

    MedlinePlus

    ... genetic terms used on this page Learning About Breast Cancer What do we know about heredity and breast ... Cancer What do we know about heredity and breast cancer? Breast cancer is a common disease. Each year, ...

  9. Understanding cancer staging

    MedlinePlus

    ... the body. The spread of cancer is called metastasis . Cancer staging is used to help describe the ... cancer has spread to nearby lymph nodes (N) Metastasis (M) , or if and how much the cancer ...

  10. Alcohol and Cancer Risk

    MedlinePlus

    ... Overview Cancer Prevention Overview–for health professionals Research Alcohol and Cancer Risk On This Page What is ... in the risk of colorectal cancer. Research on alcohol consumption and other cancers: Numerous studies have examined ...

  11. Liver (Hepatocellular) Cancer Prevention

    MedlinePlus

    ... Liver cancer is not common in the United States. Liver cancer is the fourth most common cancer and the third leading cause of cancer death in the world. In the United States, men, especially Chinese American men, have an increased ...

  12. Pancreatic Cancer Stage 3

    MedlinePlus

    ... historical Searches are case-insensitive Pancreatic Cancer Stage 3 Add to My Pictures View /Download : Small: 720x576 ... Large: 3000x2400 View Download Title: Pancreatic Cancer Stage 3 Description: Stage III pancreatic cancer; drawing shows cancer ...

  13. What Is Cancer?

    MedlinePlus

    ... Germ Cell Tumors Kidney/Wilms Tumor Liver Cancer Neuroblastoma Osteosarcoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma Thyroid ... Tumor Liver Cancer Lymphoma (Non-Hodgkin) Lymphoma (Hodgkin) Neuroblastoma Osteosarcoma Retinoblastoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma ...

  14. Childhood Cancer Statistics

    MedlinePlus

    ... Germ Cell Tumors Kidney/Wilms Tumor Liver Cancer Neuroblastoma Osteosarcoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma Thyroid ... Tumor Liver Cancer Lymphoma (Non-Hodgkin) Lymphoma (Hodgkin) Neuroblastoma Osteosarcoma Retinoblastoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma ...

  15. Symptoms of Ovarian Cancer

    MedlinePlus

    ... Informed Cancer Home What Are the Symptoms of Ovarian Cancer? Language: English Español (Spanish) Recommend on Facebook Tweet Share Compartir Gynecologic cancer symptoms diaries Ovarian cancer may cause one or more of these signs ...

  16. Carcinoid Cancer Foundation

    MedlinePlus

    ... Pay? Resources for Carcinoid and NET Cancer Insurance Appeals Mobile App A Review of Carcinoid Cancer UN ... Pay? Resources for Carcinoid and NET Cancer Insurance Appeals Mobile App A Review of Carcinoid Cancer UN ...

  17. Cancer during Pregnancy

    MedlinePlus

    ... Cancer is Treated Side Effects Dating, Sex, and Reproduction Dating and Intimacy Sexuality and Cancer Treatment: Men ... here Home > Navigating Cancer Care > Dating, Sex, and Reproduction > Cancer During Pregnancy Request Permissions Print to PDF ...

  18. Cancer Genetics Services Directory

    MedlinePlus

    ... Services Directory Cancer Prevention Overview Research NCI Cancer Genetics Services Directory This directory lists professionals who provide services related to cancer genetics (cancer risk assessment, genetic counseling, genetic susceptibility testing, ...

  19. Skin Cancer Foundation

    MedlinePlus

    ... Cancer Infographics Children For Your Eyes Clothing Shade Sunscreen Sunburn Seal of Recommendation Are You at Risk? ... Defense The Mini Skin Cancer Prevention Handbook A "Sunscreen Gene"? Skin Cancer Facts & Statistics The Skin Cancer ...

  20. Lung cancer - small cell

    MedlinePlus

    Cancer - lung - small cell; Small cell lung cancer; SCLC ... About 15% of all lung cancer cases are SCLC. Small cell lung cancer is slightly more common in men than women. Almost all cases of SCLC are ...

  1. Comparison of a novel MPN method against the yeast extract agar (YEA) pour plate method for the enumeration of heterotrophic bacteria from drinking water.

    PubMed

    Sartory, David P; Gu, Haoyi; Chen, Chun-Ming

    2008-07-01

    This study compared the Quanti-Disc most probable number (MPN) test for heterotrophic bacteria from drinking water with the widely used yeast extract agar (YEA) pour plate method. The Quanti-Disc test module contains 50 reaction wells in which a medium has been pre-deposited. The medium contains a suite of three fluorogenic enzyme substrates selected for the detection of enzymes expressed widely by heterotrophic bacteria. The MPN of heterotrophic bacteria is calculated from the number of fluorescing reaction wells after incubation of a sample. Quanti-Disc and the YEA pour plate method were compared according to guidance on comparing methods given in United Kingdom national guidance and ISO 17994:2004. The two methods were also challenged with reference strains and isolates of heterotrophic bacteria from drinking water. This indicated that heterotrophic bacteria commonly encountered in drinking water are detected by both the YEA pour plate method and Quanti-Disc. Analysis of data from split water samples (723 for 37 degrees C tests and 872 for 22 degrees C tests) from nine geographically diverse laboratories in England and Wales demonstrated that the Quanti-Disc method is equivalent to the YEA pour plate method for the analysis of heterotrophic bacteria from drinking and similar waters at 37 degrees C, and superior to YEA for the analysis at 22 degrees C. The Quanti-Disc method is a simple and efficient alternative method for the enumeration of heterotrophic bacteria from drinking water.

  2. Cancer Biomarkers | Division of Cancer Prevention

    Cancer.gov

    This group promotes research to identify, develop, and validate biological markers for early cancer detection and cancer risk assessment. | Research to identify, develop and validate biomarkers for early cancer detection and risk assessment.

  3. Ovarian Cancer Fact Sheet

    MedlinePlus

    ... States, ovarian cancer is the eighth most common cancer and the fifth leading cause of cancer death. Around one in every 60 ... States, ovarian cancer is the eighth most common cancer and the fifth leading cause of cancer death. Are some women more at ...

  4. Pouring wide-range immobilized pH gradient gels with a window of extremely flattened slope.

    PubMed

    Altland, K; Altland, A

    1990-04-01

    A gradient mixing device has been designed to pour polyacrylamide gels with a wide-range immobilized pH gradient including a "window" of extremely flattened slope. The device consists of an IBM-compatible personal computer controlling 8 step-motor-driven burettes, with four producing a density gradient from glycerol and delivering acrylamides and catalysts for gel polymerization, two delivering Immobilines for a wide-range pH gradient and the other two burettes responsible for the delivery of Immobilines for a partial pH range inside the wide range. The effect on a complex separation pattern of proteins with a wide range of pI is that resolution can be increased reproducibly to any reasonable extent at any location of the separation pattern.

  5. U Modele pour L'enregistrement et L'interpretation Physique D'images Tridimensionnelles EN Couleur

    NASA Astrophysics Data System (ADS)

    Baribeau, Rejean

    Le modele propose dans cette these repose sur l'utilisation d'un capteur de vision tridimensionnelle, couple a un laser RGB, pour la saisie des coordonnees surfaciques d'un objet de meme que des couleurs associees. Une calibration du capteur et l'exploitation des donnees 3D permettent la recuperation des facteurs de reflectance spectrale des elements de surface. On montre que la performance du systeme est limitee par le speckle, et une analyse quantitative du phenomene est proposee. Divers modeles de reflexion sont ensuite etablis puis appliques a l'extraction des parametres physiques intrinseques d'objets dans des scenes 3D en couleur. Une telle modelisation physique facilite la tache d'interpretation et permet plus de souplesse dans la manipulation des objets sous forme de realites virtuelles.

  6. Surgery for Pre-Cancers and Cancers of the Cervix

    MedlinePlus

    ... Radiation therapy for cervical cancer Surgery for cervical cancer Cryosurgery A metal probe cooled with liquid nitrogen ... in Cervical Cancer Research? Other Resources and References Cancer Information Cancer Basics Cancer Prevention & Detection Signs & Symptoms ...

  7. Cancer du sein bilatéral synchrone au Maroc: caractéristiques épidémiologiques et cliniques

    PubMed Central

    Boufettal, Houssine; Samouh, Naïma

    2015-01-01

    Préciser la fréquence, les facteurs de risque et le pronostic du cancer du sein bilatéral, à partir d'une étude rétrospective de 22 cas de cancer du sein bilatéral synchrone dans un pays du Maghreb. De 2002 à 2010, 625 patientes étaient prises en charge pour cancer du sein au service de Gynécologie-Obstétrique «C» du centre hospitalier universitaire de Casablanca. 22 cas de cancer bilatéral synchrone étaient diagnostiqués. Nos résultats sont comparés avec ceux de la littérature. La fréquence de la bilatéralité du cancer du sein synchrone était de 3,52% (22/625). L'intervalle de temps moyen entre les deux cancers est de 4 mois (0 à 6 mois). Les patientes âgées de moins de 40 ans lors du premier cancer avaient six fois plus de risque de développer un cancer au niveau du sein controlatéral que les femmes âgées de plus de 40 ans. Les patientes atteintes d'une tumeur T3 ou T4 avaient un risque neuf fois plus élevé que les autres. 90,9% (2/22) des cas des premiers cancers sont des adénocarcinomes infiltrants. Les types histologiques du premier et du douzième cancer étaient identiques dans 86,4% (19/22) des cas. Quant au pronostic, il dépend à la fois du stade du premier et du deuxième cancer et le traitement de ce dernier doit obéir aux mêmes règles du traitement du premier cancer. L'incidence du cancer bilatéral synchrone du sein est de 3,52% dans notre série. Le cancer du sein unilatéral constitue un facteur de risque de développement d'un cancer du sein controlatéral. Une surveillance à vie est nécessaire au cours d'un cancer du sein pour détecter un cancer controlatéral. PMID:26090066

  8. Developpement et validation d'un outil base sur l'acoustique geometrique pour le diagnostic du bruit de nacelle

    NASA Astrophysics Data System (ADS)

    Minard, Benoit

    De nos jours, la problématique du bruit généré par les avions est devenue un point de développement important dans le domaine de l'aéronautique. C'est ainsi que de nombreuses études sont faites dans le domaine et une première approche consiste à modéliser de façon numérique ce bruit de manière à réduire de façon conséquente les coûts lors de la conception. C'est dans ce contexte qu'un motoriste a demandé à l'université de Sherbrooke, et plus particulièrement au groupe d'acoustique de l'Université de Sherbrooke (GAUS), de développer un outil de calcul de la propagation des ondes acoustiques dans les nacelles mais aussi pour l'étude des effets d'installation. Cet outil de prédiction leur permet de réaliser des études afin d'optimiser les traitements acoustiques (« liners »), la géométrie de ces nacelles pour des études portant sur l'intérieur de la nacelle et des études de positionnement des moteurs et de design pour les effets d'installation. L'objectif de ce projet de maîtrise était donc de poursuivre le travail réalisé par [gousset, 2011] sur l'utilisation d'une méthode de lancer de rayons pour l'étude des effets d'installation des moteurs d'avion. L'amélioration du code, sa rapidité, sa fiabilité et sa généralité étaient les objectifs principaux. Le code peut être utilisé avec des traitements acoustiques de surfaces («liners») et peut prendre en compte le phénomène de la diffraction par les arêtes et enfin peut être utilisé pour réaliser des études dans des environnements complexes tels que les nacelles d'avion. Le code développé fonctionne en 3D et procéde en 3 étapes : (1) Calcul des faisceaux initiaux (division d'une sphère, demi-sphère, maillage des surfaces de la géométrie) (2) Propagation des faisceaux dans l'environnement d'étude : calcul de toutes les caractéristiques des rayons convergents (amplitude, phase, nombre de réflexions, ...) (3) Reconstruction du champ de pression en un ou

  9. [Gastrointestinal cancer].

    PubMed

    Takahashi, Yutaka

    2004-08-01

    Although their sensitivity is not high, SCC, TPA and IAP are useful for esophageal cancer. The sensitivity of CEA, CA 19-9, is relatively high, especially in well-differentiated adenocarcinoma of gastric cancer with lymph node metastasis. AFP is specific to liver metastasis from gastric cancer, and CA 125 is also specific to peritoneal dissemination. CA 72-4 and NCC-ST-439 are useful markers for advanced staging. CEA, CA 19-9, is useful for colon cancer, especially for predicting preoperative staging. Half-life and doubling time of tumor markers is useful in some cases for the evaluation of operation and chemotherapy. We showed our data concerning postoperative CEA and/or CA 19-9 monitoring after operation for gastric cancer in 120 recurrent patients. Positivities of CEA and CA 19-9 for recurrence were 65.8% and 85.0%, respectively, both of which were significantly higher than the preoperative sensitivities (28.3% and 45.0%, respectively). In most patients with high levels of preoperative CEA and/or CA 19-9, these tumor markers increased again at recurrence. Recurrent diseases were detected between 5 months after detection by diagnostic imagings and 12 months before detection by diagnostic imagings (mean of 3.1+/-3.6 months before detection by diagnostic imagings) and between 10 months after detection by diagnostic imagings and 13 months before detection by diagnostic imagings (mean 2.2+/-3.9 months before detection by diagnostic imagings) by CEA and CA 19-9 monitorings, respectively. These results suggest that CEA and/or CA 19-9 monitoring after operation was useful to predict the recurrence of gastric cancer, especially in almost all the patients with high preoperative levels of these markers.

  10. Cancer in Children and Adolescents

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  11. Vitamin D and Cancer Prevention

    MedlinePlus

    ... Partners & Collaborators Spotlight on Scientists Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ... Collaborators Spotlight on Scientists NCI Research Areas Cancer Biology Cancer Genomics Causes of Cancer Diagnosis Prevention Screening & ...

  12. Approche en soins primaires pour les problèmes de consommation de cannabis

    PubMed Central

    Turner, Suzanne D.; Spithoff, Sheryl; Kahan, Meldon

    2014-01-01

    Résumé Objectif Étudier les caractéristiques et complications cliniques de la consommation à risque de cannabis et du trouble de consommation de cannabis, et présenter un protocole en cabinet pour le dépistage, l’identification et la prise en charge de ces problèmes. Sources des données Une recherche des essais contrôlés, des études d’observation et des révisions sur l’usage de cannabis par les adolescents et les jeunes adultes; les méfaits psychiatriques et médicaux liés au cannabis; le trouble de consommation de cannabis et son traitement; et les lignes directrices sur la consommation à faible risque de cannabis a été effectuée dans PubMed. Message principal Les médecins doivent questionner tous leurs patients quant à leur usage de cannabis. Ils doivent questionner plus souvent les adolescents et jeunes adultes de même que les personnes qui présentent un risque élevé de problèmes liés au cannabis (qui ont un trouble psychiatrique ou de consommation de drogue concomitant). Les problèmes pouvant être causés par le cannabis, comme les troubles de l’humeur, la psychose et les symptômes respiratoires, devraient susciter des questions sur la consommation de cannabis. Aux patients qui rapportent un usage de cannabis, les médecins devraient poser des questions sur la fréquence et la quantité consommée, la présence de symptômes de tolérance ou de sevrage, les tentatives de réduire leur consommation et la présence de problèmes liés au cannabis. Les usagers à faible risque fument, inhalent ou ingèrent le cannabis occasionnellement sans aucun signe de dysfonctionnement scolaire, professionnel ou social; les personnes dont l’usage est problématique consomment tous les jours ou presque tous les jours, ont de la difficulté à réduire leur consommation et leur fonctionnement scolaire, professionnel et social est perturbé. Les médecins devraient offrir à tous les patients dont l’usage est problématique des conseils

  13. Penile Cancer

    PubMed Central

    Clark, Peter E.; Spiess, Philippe E.; Agarwal, Neeraj; Biagioli, Matthew C.; Eisenberger, Mario A.; Greenberg, Richard E.; Herr, Harry W.; Inman, Brant A.; Kuban, Deborah A.; Kuzel, Timothy M.; Lele, Subodh M.; Michalski, Jeff; Pagliaro, Lance; Pal, Sumanta K.; Patterson, Anthony; Plimack, Elizabeth R.; Pohar, Kamal S.; Porter, Michael P.; Richie, Jerome P.; Sexton, Wade J.; Shipley, William U.; Small, Eric J.; Trump, Donald L.; Wile, Geoffrey; Wilson, Timothy G.; Dwyer, Mary; Ho, Maria

    2014-01-01

    Squamous cell carcinoma of the penis represents approximately 0.5% of all cancers among men in the United States and other developed countries. Although rare, it is associated with significant disfigurement, and only half of the patients survive beyond 5 years. Proper evaluation of both the primary lesion and lymph nodes is critical, because nodal involvement is the most important factor of survival. The NCCN Clinical Practice Guidelines in Oncology for Penile Cancer provide recommendations on the diagnosis and management of this devastating disease based on evidence and expert consensus. PMID:23667209

  14. [Cervix cancer].

    PubMed

    Pointreau, Y; Ruffier Loubière, A; Denis, F; Barillot, I

    2010-11-01

    Cervix cancers declined in most developed countries in recent years, but remain, the third worldwide leading cause of cancer death in women. A precise staging, based on clinical exam, an abdominal and pelvic MRI, a possible PET-CT and a possible lymph node sampling is necessary to adapt the best therapeutic strategy. In France, the treatments of tumors of less than 4 cm without nodal involvement are often based on radiotherapy followed by surgery and, whereas tumors larger than 4 cm and involved nodes are treated with concurrent chemoradiotherapy. Based on an illustrated clinical case, indications, delineation, dosimetry and complications expected with radiotherapy are demonstrated.

  15. Cancer Therapy

    NASA Technical Reports Server (NTRS)

    1979-01-01

    The patient shown is undergoing cancer radiation treatment in a hospital-like atmosphere but he is not in a hospital. The treatment room is at NASA's Lewis Research Center, Cleveland, Ohio. It is a converted portion of the Center's cyclotron facility, originally designed for radiation studies related to nuclear propulsion for aircraft and spacecraft. Under an agreement between the Center and the Cleveland Clinic Foundation, the 50 million volt cyclotron is now being used to evaluate the effectiveness of "fast neutron" therapy in the treatment of cancerous tumors.

  16. Esophageal Cancer.

    PubMed

    Alsop, Benjamin R; Sharma, Prateek

    2016-09-01

    Esophageal cancer carries a poor prognosis among gastrointestinal malignancies. Although esophageal squamous cell carcinoma predominates worldwide, Western nations have seen a marked rise in the incidence of esophageal adenocarcinoma that parallels the obesity epidemic. Efforts directed toward early detection have been difficult, given that dysplasia and early cancer are generally asymptomatic. However, significant advances have been made in the past 10 to 15 years that allow for endoscopic management and often cure in early stage esophageal malignancy. New diagnostic imaging technologies may provide a means by which cost-effective, early diagnosis of dysplasia allows for definitive therapy and ultimately improves the overall survival among patients. PMID:27546839

  17. Revetements antireflet-passivation a base de nitrure de silicium PECVD pour cellules solaires triple-jonction III-V/ Ge

    NASA Astrophysics Data System (ADS)

    Homier, Ram

    Dans le contexte environnemental actuel, le photovoltaïque bénéficie de l'augmentation des efforts de recherche dans le domaine des énergies renouvelables. Pour réduire le coût de la production d'électricité par conversion directe de l'énergie lumineuse en électricité, le photovoltaïque concentré est intéressant. Le principe est de concentrer une grande quantité d'énergie lumineuse sur des petites surfaces de cellules solaires multi-jonction à haute efficacité. Lors de la fabrication d'une cellule solaire, il est essentiel d'inclure une méthode pour réduire la réflexion de la lumière à la surface du dispositif. Le design d'un revêtement antireflet (ARC) pour cellules solaires multi-jonction présente des défis à cause de la large bande d'absorption et du besoin d'égaliser le courant produit par chaque sous-cellule. Le nitrure de silicium déposé par PECVD en utilisant des conditions standards est largement utilisé dans l'industrie des cellules solaires à base de silicium. Cependant, ce diélectrique présente de l'absorption dans la plage des courtes longueurs d'onde. Nous proposons l'utilisation du nitrure de silicium déposé par PECVD basse fréquence (LFSiN) optimisé pour avoir un haut indice de réfraction et une faible absorption optique pour l'ARC pour cellules solaires triple-jonction III-V/Ge. Ce matériau peut aussi servir de couche de passivation/encapsulation. Les simulations montrent que l'ARC double couche SiO2/LFSiN peut être très efficace pour réduire les pertes par réflexion dans la plage de longueurs d'onde de la sous-cellule limitante autant pour des cellules solaires triple-jonction limitées par la sous-cellule du haut que pour celles limitées par la sous-cellule du milieu. Nous démontrons aussi que la performance de la structure est robuste par rapport aux fluctuations des paramètres des couches PECVD (épaisseurs, indice de réfraction). Mots-clés : Photovoltaïque concentré (CPV), cellules

  18. Kidney Cancer

    MedlinePlus

    You have two kidneys. They are fist-sized organs on either side of your backbone above your waist. The tubes inside filter and ... blood, taking out waste products and making urine. Kidney cancer forms in the lining of tiny tubes ...

  19. Cancer vaccines.

    PubMed

    Butterfield, Lisa H

    2015-04-22

    Cancer vaccines are designed to promote tumor specific immune responses, particularly cytotoxic CD8 positive T cells that are specific to tumor antigens. The earliest vaccines, which were developed in 1994-95, tested non-mutated, shared tumor associated antigens that had been shown to be immunogenic and capable of inducing clinical responses in a minority of people with late stage cancer. Technological developments in the past few years have enabled the investigation of vaccines that target mutated antigens that are patient specific. Several platforms for cancer vaccination are being tested, including peptides, proteins, antigen presenting cells, tumor cells, and viral vectors. Standard of care treatments, such as surgery and ablation, chemotherapy, and radiotherapy, can also induce antitumor immunity, thereby having cancer vaccine effects. The monitoring of patients' immune responses at baseline and after standard of care treatment is shedding light on immune biomarkers. Combination therapies are being tested in clinical trials and are likely to be the best approach to improving patient outcomes.

  20. Cancer Biology

    ERIC Educational Resources Information Center

    Dominiecki, Mary E.

    2004-01-01

    University of Colorado's Virtual Student Fellowship available at and developed by Bakemeier, Richard F. This website is designed to give students applying for a fellowship an overview of basic topics in biology and how they are used by cancer researchers to develop new treatments.

  1. The Cancer Genome Atlas ovarian cancer analysis

    Cancer.gov

    An analysis of genomic changes in ovarian cancer has provided the most comprehensive and integrated view of cancer genes for any cancer type to date. Ovarian serous adenocarcinoma tumors from 500 patients were examined by The Cancer Genome Atlas (TCGA) Re

  2. Cancer Statistics: Cancer of the Stomach

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 26,370 % of All New Cancer Cases 1.6% Estimated Deaths in 2016 10,730 % of All Cancer ... of This Cancer : In 2013, there were an estimated 79,843 people living with stomach cancer in ...

  3. Cancer Statistics: Cancer of the Small Intestine

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 10,090 % of All New Cancer Cases 0.6% Estimated Deaths in 2016 1,330 % of All Cancer ... intestine cancer is rare. Common Types of Cancer Estimated New Cases 2016 Estimated Deaths 2016 1. Breast ...

  4. Cancer Statistics: Cancer of the Vulva

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 5,950 % of All New Cancer Cases 0.4% Estimated Deaths in 2016 1,110 % of All Cancer ... vulvar cancer is rare. Common Types of Cancer Estimated New Cases 2016 Estimated Deaths 2016 1. Breast ...

  5. Cancer Biomarkers Staff | Division of Cancer Prevention

    Cancer.gov

    The Division of Cancer Prevention (DCP) conducts and supports research to determine a person's risk of cancer and to find ways to reduce the risk. This knowledge is critical to making progress against cancer because risk varies over the lifespan as genetic and epigenetic changes can transform healthy tissue into invasive cancer.

  6. Prostate cancer is not breast cancer

    PubMed Central

    Venniyoor, Ajit

    2016-01-01

    Cancers of the prostate and breast are hormone dependent cancers. There is a tendency to equate them and apply same algorithms for treatment. It is pointed out that metastatic prostate cancer with bone-only disease is a potentially fatal condition with a much poorer prognosis than metastatic breast cancer and needs a more aggressive approach. PMID:27051149

  7. Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle

    PubMed Central

    Silva, Heloisa Cristina; Prette, Nancy; Lopes, Welber Daniel Zanetti; Sakamoto, Cláudio Alessandro M; Buzzulini, Carolina; dos Santos, Thais Rabelo; Cruz, Breno Cayeiro; Teixeira, Weslen F Pires; Felippelli, Gustavo; Carvalho, Rafael Silveira; Maciel, Willian Giquelin; Soares, Vando Edésio; da Costa, Alvimar José

    2015-01-01

    The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy indexes against this ectoparasite, when compared with formulations containing 0.5 per cent ivermectin, 1 per cent ivermectin and the combination of 1 per cent abamectin +20 per cent levamisole. The results of efficacy of the ivermectin+abamectin and the 0.5 per cent ivermectin against Haematobia irritans were similar. Against Cochliomyia hominivorax larvae, all pour-on formulations tested (1.5 per cent ivermectin +0.5 per cent abamectin, 0.5 per cent ivermectin and 0.5 per cent abamectin), as well as 1 per cent doramectin administered subcutaneously, were considered ineffective. Cattle medicated with 1.5 per cent ivermectin +0.5 per cent abamectin, pour-on, remained free from parasitism by Dermatobia hominis larvae during 42 days (96 per cent efficacy), while values superior to 90 per cent were obtained by 0.5 per cent ivermectin (92 per cent) and 0.5 per cent abamectin (93 per cent) until the 42nd and 35th days post treatment, respectively. Against Haemonchus placei and Oesophagostomum radiatum, the pour-on of ivermectin+abamectin showed better efficacy than the 0.5 per cent ivermectin and 0.5 per cent abamectin. As to Cooperia punctata, there was no difference regarding efficacy results obtained by the avermectins combination and abamectin. The pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained high efficacy against R. (B.) microplus, D. hominis and some species of cattle gastrointestinal helminths when compared with formulations of 0.5 per cent ivermectin and 0.5 per cent abamectin administered through the same route. PMID:26392893

  8. Lignes directrices sur l’aiguillage des cas soupçonnés de cancer colorectal par un médecin de famille ou autre professionnel des soins primaires

    PubMed Central

    Del Giudice, M. Elisabeth; Vella, Emily T.; Hey, Amanda; Simunovic, Marko; Harris, William; Levitt, Cheryl

    2014-01-01

    Résumé Objectif Ces lignes directrices ont pour but d’aider les médecins de famille et les autres professionnels des soins primaires à reconnaître les caractéristiques qui devraient susciter leurs soupçons quant à la présence d’un cancer colorectal (CCR) chez leurs patients. Composition du comité Les membres du comité ont été choisis parmi les dirigeants régionaux des soins primaires au sein du Réseau provincial des soins primaires et de la lutte contre le cancer, les membres du Comité consultatif sur le dépistage du cancer colorectal de l’Ontario et les membres du Groupe sur le siège de la maladie, Cancer gastrointestinal, d’Action Cancer Ontario. Méthodes Ces lignes directrices sont le fruit d’une revue systématique et d’une synthèse des données probantes, ainsi que d’un examen formel par des intervenants canadiens pour valider la pertinence des recommandations. Rapport Des lignes directrices fondées sur des données probantes ont été élaborées pour améliorer la prise en charge des patients qui présentent des caractéristiques cliniques d’un CCR et ce, dans le contexte canadien. Conclusion Un équilibre judicieux entre une suspicion de CCR et le niveau de risque d’un tel cancer devrait favoriser une demande de consultation en temps opportun par les médecins de famille et les professionnels des soins primaires. Ces lignes directrices pourraient aussi orienter les décisions de demander une consultation à des programmes d’évaluation diagnostique du CCR.

  9. Chemicals, Cancer and Cancer Biology

    PubMed Central

    Smuckler, Edward A.

    1983-01-01

    Chemicals can cause cancer in humans and animals. Two significant questions are how and how frequently do these neoplasms arise? The first documentation of chemically induced cancer in humans was of the occupationally related “soot wart” in 1775. Since that time various carcinogens have been identified. Some compounds act directly on cell populations, whereas others must be metabolized by a host to produce a “proximate” or “ultimate” carcinogen. Because of the variety in carcinogen structure and the multiplicity of modifications to the cellular macromolecules, a simple explanation for chemical effect is unlikely. Furthermore, true neoplastic growth involves at least two and possibly more steps, some of which are reversible. Evidence suggests that cancer represents an altering of differentiation and that chemical agents may act at the level of DNA or on epigenetic regulatory phenomena. The method for selecting the neoplastic cell from those that are normal is not known. Because we cannot explain the mechanisms for cancer formation or the role of chemicals in the process, prudence is needed in determining the significance of human exposure and in relating this exposure to the risk of neoplastic disease. Images PMID:6624084

  10. Lignes directrices canadiennes sur l’utilisation sécuritaire et efficace des opioïdes pour la douleur chronique non cancéreuse

    PubMed Central

    Kahan, Meldon; Mailis-Gagnon, Angela; Wilson, Lynn; Srivastava, Anita

    2011-01-01

    Résumé Objectif Présenter aux médecins de famille un résumé clinique pratique des lignes directrices canadiennes sur l’utilisation sécuritaire et efficace des opioïdes pour la douleur chronique non cancéreuse, produites par le National Opioid Use Guideline Group. Qualité des données Pour produire les lignes directrices, les chercheurs ont effectué une synthèse critique de la littérature médicale sur l’efficacité et l’innocuité des opioïdes pour la douleur chronique non cancéreuse et ont rédigé une série de recommandations. Un panel de 49 cliniciens experts de toutes les régions du Canada ont passé en revue l’ébauche et ont atteint un consensus sur 24 recommandations. Message principal Il est recommandé de faire un dépistage du risque de dépendance avant de prescrire des opioïdes. On recommande des opioïdes faibles (codéine et tramadol) pour une douleur de légère à modérée qui n’a pas répondu aux traitements de première intention. On peut essayer l’oxycodone, l’hydromorphone et la morphine chez les patients qui n’ont pas eu de soulagement avec des opioïdes plus faibles. Une faible dose initiale et une lente hausse du titrage sont recommandées, ainsi qu’une étroite surveillance du patient qu’on a d’abord renseigné. Les médecins doivent surveiller l’apparition de complications comme l’apnée du sommeil. La dose optimale est celle qui améliore le fonctionnement ou atténue les cotes d’évaluation de la douleur d’au moins 30 %. Pour la grande majorité des patients, la dose optimale sera bien en deçà de l’équivalent de 200 mg de morphine par jour. On recommande le sevrage progressif pour les patients qui n’ont pas répondu à un essai d’opioïdes adéquat. Conclusion Les opioïdes jouent un rôle important dans la prise en charge de la douleur chronique non cancéreuse, mais il faut en prescrire avec prudence pour limiter les dommages potentiels. Les nouvelles lignes directrices

  11. Reduced efficacy of moxidectin and abamectin in young red deer (Cervus elaphus) after 20 years of moxidectin pour-on use on a New Zealand deer farm.

    PubMed

    Mackintosh, C G; Cowie, C; Fraser, K; Johnstone, P; Mason, P C

    2014-01-17

    A study was undertaken on weaned 4-5 month old farmed red deer to test the efficacy of moxidectin and abamectin anthelmintics, given by three different routes of administration, compared with an untreated control. Faecal samples were collected on days 0, 7 and 14 for a faecal egg count reduction test (FECRT), blood samples were collected on days 0, 0.5, 1, 2, 3, 5, 7, 10 and 14 for pharmacokinetics, and the deer were killed on days 14 or 15 for total nematode count. The control group averaged 1264 adult Ostertagia-type nematode parasite species and treatment efficacy was 77.4% for moxidectin injection, 26% for oral moxidectin and 27.6% for pour-on moxidectin, while the treatment efficacy was 72.4% for abamectin injection, 70.1% for oral abamectin (Hi-Mineral) and 34.1% for pour-on abamectin. Both moxidectin and abamectin injections were significantly more efficacious than their equivalent pour-ons. There was a significant difference in efficacy between oral abamectin (Hi-Mineral) and oral moxidectin (P<0.01). The control group averaged 2956 adult lungworm (Dictyocaulus eckerti) and 50 Oesophagostomum venulosum in the large intestine and treatment efficacy against these nematodes was 100% for all treatments. There were negligible numbers of other gastro-intestinal nematodes. At slaughter, there was a significant correlation (P=0.02) between FEC and Ostertagia-type nematodes in the untreated controls. Relatively few eggs were found in faeces from treated animals at 7 and 14 days post-treatment despite significant worm burdens in all six treatment groups, suggesting egg-laying suppression in resistant nematodes, and all three different FECRT calculations tended to overestimate the efficacy of the treatments compared with actual nematode counts. Peak plasma concentrations (Cmax) for both actives were measured 12h after treatment for injection and oral and at 5 days for pour-on. Cmax (ng/ml) for moxidectin injection, oral and pour-on were 71.8, 8.3 and 0.4, respectively

  12. The Influence of the Melt-Pouring Temperature and Inoculant Content on the Macro and Microstructure of the IN713C Ni-Based Superalloy

    NASA Astrophysics Data System (ADS)

    Matysiak, Hubert; Zagorska, Malgorzata; Balkowiec, Alicja; Adamczyk-Cieslak, Boguslawa; Dobkowski, Krzysztof; Koralnik, Mateusz; Cygan, Rafal; Nawrocki, Jacek; Cwajna, Jan; Kurzydlowski, Krzysztof J.

    2016-01-01

    The aim of this work was to determine the effect of melt-pouring temperature T m and inoculant (cobalt aluminate—CoAl2O4) concentration in the prime coat of the shell mold on the macro- and microstructure of the IN713C superalloy. The results show that cobalt aluminate is an effective modifier of the IN713C superalloy, which causes refinement of the equiaxed grains (EX) and a reduction of the fraction and size of the columnar grains on the casting surface. Also, the melt-pouring temperature in the range of 1450-1520°C was found to influence the mean EX grain size. Based on the results of differential thermal analysis of the alloy and detailed microstructure characterization, a sequence of precipitations has been proposed that advances current understanding of processes that take place during alloy solidification and casting cooling.

  13. L’administration postnatale de corticoïdes pour traiter ou prévenir les affections pulmonaires chroniques chez les prématurés

    PubMed Central

    2002-01-01

    Le présent énoncé est conçu à l’intention des professionnels de la santé qui soignent des nouveau-nés et de jeunes nourrissons. Il vise à examiner les effets à court et à long terme de l’administration postnatale de corticoïdes systémiques et par inhalation pour prévenir ou traiter une affection pulmonaire chronique évolutive ou établie et à faire des recommandations quant à l’usage de corticoïdes chez les nourrissons à très faible poids de naissance. Le recours systématique à la dexaméthasone systémique pour prévenir ou traiter une affection pulmonaire chronique n’est pas recommandé chez les nourrissons à très faible poids de naissance.

  14. Quelques diagnostics X pour les expériences d'interaction laser-matière

    NASA Astrophysics Data System (ADS)

    Troussel, Ph.

    2002-05-01

    Since the early 1990s, advances in laser-driven inertial confinement fusion research have been on the rise. This report provides a description of the experimental techniques which are used to study the interaction of laser light with matter and high density plasmas. To understand the physical processes involved in this interaction, we need high performance instrumentation (diagnostics) for the observation of X-ray radiation in the energy range from a few eV to a few keV. This paper is divided into three chapters: the first part describes the metrology of the diagnostics developed around various X-ray sources (synchrotron, laser-produced-plasmas, ...), the second part synthesizes theoretical and experimental X-ray optics studies. It shows the interest for applications such as X-ray spectroscopy and X-ray imaging, the third part is a review of the use of advances X-ray imaging diagnostics in laser-produced plasma physics experiments. Ce rapport est une revue de travaux réalisés au CEA/DAM de 1990 à 1999, dans le cadre de la fusion thermonucléaire inertielle par laser. Il est relatif aux techniques expérimentales utilisées pour l'étude de l'interaction du rayonnement laser avec la matière et des plasmas à très haute densité d'énergie. La compréhension de cette physique a nécessité le développement d'une instrumentation de premier plan notamment de diagnostics dans le domaine des rayonsX. Il est articulé en trois chapitres: la première concerne la métrologie de ces diagnostics réalisée auprès de différentes sources de rayonnement X (synchrotron, plasma laser, tube RX...), la seconde synthétise les études théoriques et expérimentales d'optiques RX et montre comment ces optiques ont trouvé des applications directes en instrumentationX (spectroscopie, imagerie) auprès des lasers, la troisième est une revue des diagnostics marquants d'imagerie, de radiographieX, ayant un intérêt pour la physique des plasmas, à travers quelques expériences.

  15. Anesthésie pour prothése totale de la hanche: à propos de 50 cas

    PubMed Central

    Serghini, Issam; Qamouss, Youssef; Zoubir, Mohamed; Lalaoui, Jaafar Salim; Koulali, Idrissi Khalid; Boughalem, Mohamed

    2015-01-01

    La chirurgie de la prothèse totale de la hanche (PTH) est une chirurgie fonctionnelle qui consiste en un remplacement d'une articulation endommagée afin d'améliorer la qualité de vie du patient. L'anesthésie pour PTH exige une préparation rigoureuse à l'intervention, la consultation d'anesthésie sera donc la clef de cette réussite. Nous avons réalisé une étude rétrospective concernant 60 arthroplasties totales de la hanche implantées chez 50 patients adultes, colligée au sevice de Traumatologie et de chirurgie orthopédique à l'Hôpital Militaire Avicenne de Marrakech sur une période étalée de Janvier 2010 au Décembre 2012. Nous avons évalué la prise en charge anesthésique: pré, per et postopératoire des patients opérés pour une PTH. La moyenne d’âge était de 56,5 ans, le sex-ratio était de 1,63 en faveur des hommes. L'indication prédominante était la coxarthrose primitive. L'anesthésie générale était la technique anesthésique la plus utilisée (66% des cas), l'intubation difficile était rencontrée chez 6% de nos patients. La durée moyenne de l'acte chirurgical était de 114 +/- 25,33 mn. 12% de nos patients ont présenté une hypotension artérielle peropératoire. L'incidence de la transfusion homologue perop était de 14%. Nous avons noté 08 cas de complications postop: 03 cas d'infection de la PTH 15 jours après l'intervention, 03 cas de descellement aseptique, 01 cas de luxation de PTH et 01 cas de descellement septique avec un recul moyen de 54 mois. PMID:27047619

  16. COMPUTER MODELING OF HIGH-LEVEL WASTE GLASS TEMPERATURES WITHIN DWPF CANISTERS DURING POURING AND COOL DOWN

    SciTech Connect

    Amoroso, J.

    2011-10-09

    This report describes the results of a computer simulation study to predict the temperature of the glass at any location inside a DWPF canister during pouring and subsequent cooling. These simulations are an integral part of a larger research focus aimed at developing methods to predict, evaluate, and ultimately suppress nepheline formation in HLW glasses. That larger research focus is centered on holistically understanding nepheline formation in HLW glass by exploring the fundamental thermal and chemical driving forces for nepheline crystallization with respect to realistic processing conditions. Through experimental work, the goal is to integrate nepheline crystallization potential in HLW glass with processing capability to ultimately optimize waste loading and throughput while maintaining an acceptable product with respect to durability. The results of this study indicated severe temperature gradients and prolonged temperature dwell times exist throughout different locations in the canister and that the time and temperatures that HLW glass is subjected to during processing is a function of pour rate. The simulations indicate that crystallization driving forces are not uniform throughout the glass volume in a DWPF (or DWPF-like) canister and illustrate the importance of considering overall kinetics (chemical and thermal driving forces) of nepheline formation when developing methods to predict and suppress its formation in HLW glasses. The intended path forward is to use the simulation data both as a driver for future experimental work and, as an investigative tool for evaluating the impact of experimental results. Simulation data will be used to develop laboratory experiments to more acutely evaluate nepheline formation in HLW glass by incorporating the simulated temperatures throughout the canister into the laboratory experiments. Concurrently, laboratory experiments will be performed to identify nepheline crystallization potential in HLW glass as a function of

  17. [Prostate cancer].

    PubMed

    Morote, Joan; Maldonado, Xavier; Morales-Bárrera, Rafael

    2016-02-01

    The Vall d'Hebron multidisciplinary prostate cancer (PC) team reviews recent advances in the management of this neoplasm. Screening studies with long follow-up show a reduction in mortality, whereas active surveillance is emerging as a therapeutic approach of non-aggressive cancers. New markers increase the specificity of PSA and also allow targeting suspected aggressive cancers. Multiparametric magnetic resonance (mMRI) has emerged as the most effective method in the selection of patients for biopsy and also for local tumor staging. The paradigm of random prostatic biopsy is changing through the fusion techniques that allow guiding ultrasonography-driven biopsy of suspicious areas detected in mMRI. Radical prostatectomy (RP) and radiotherapy (RT) are curative treatments of localized PC and both have experienced significant technological improvements. RP is highly effective and the incorporation of robotic surgery is reducing morbidity. Modern RT allows the possibility of high tumor dose with minimal adjacent dose reducing its toxicity. Androgen deprivation therapy with LHRH analogues remains the treatment of choice for advanced PC, but should be limited to this indication. The loss of bone mass and adverse metabolic effects increases the frequency of fractures and cardiovascular morbimortality. After castration resistance in metastatic disease, new hormone-based drugs have demonstrated efficacy even after chemotherapy resistance.

  18. [Prostate cancer].

    PubMed

    Morote, Joan; Maldonado, Xavier; Morales-Bárrera, Rafael

    2016-02-01

    The Vall d'Hebron multidisciplinary prostate cancer (PC) team reviews recent advances in the management of this neoplasm. Screening studies with long follow-up show a reduction in mortality, whereas active surveillance is emerging as a therapeutic approach of non-aggressive cancers. New markers increase the specificity of PSA and also allow targeting suspected aggressive cancers. Multiparametric magnetic resonance (mMRI) has emerged as the most effective method in the selection of patients for biopsy and also for local tumor staging. The paradigm of random prostatic biopsy is changing through the fusion techniques that allow guiding ultrasonography-driven biopsy of suspicious areas detected in mMRI. Radical prostatectomy (RP) and radiotherapy (RT) are curative treatments of localized PC and both have experienced significant technological improvements. RP is highly effective and the incorporation of robotic surgery is reducing morbidity. Modern RT allows the possibility of high tumor dose with minimal adjacent dose reducing its toxicity. Androgen deprivation therapy with LHRH analogues remains the treatment of choice for advanced PC, but should be limited to this indication. The loss of bone mass and adverse metabolic effects increases the frequency of fractures and cardiovascular morbimortality. After castration resistance in metastatic disease, new hormone-based drugs have demonstrated efficacy even after chemotherapy resistance. PMID:25727526

  19. How childhood cancers are different from adult cancers

    MedlinePlus

    ... medlineplus.gov/ency/patientinstructions/000845.htm How childhood cancers are different from adult cancers To use the sharing features on this page, ... with cancer can be cured. Types of Childhood Cancers Cancer in children is rare, but some types ...

  20. Cancer Prevention Overview (PDQ)

    MedlinePlus

    ... has been linked to some cancers: Links between air pollution and cancer risk have been found. These include ... between lung cancer and secondhand tobacco smoke , outdoor air pollution, and asbestos . Drinking water that contains a large ...

  1. Breast Cancer (For Kids)

    MedlinePlus

    ... Got Homework? Here's Help White House Lunch Recipes Breast Cancer KidsHealth > For Kids > Breast Cancer Print A A ... for it when they are older. What Is Breast Cancer? The human body is made of tiny building ...

  2. What Is Cancer?

    MedlinePlus

    ... may form growths called tumors. Many cancers form solid tumors, which are masses of tissue. Cancers of ... blood, such as leukemias, generally do not form solid tumors. Cancerous tumors are malignant, which means they ...

  3. Ovarian Cancer FAQ

    MedlinePlus

    ... Ovarian Cancer Patient Education FAQs Ovarian Cancer Patient Education Pamphlets - Spanish Ovarian Cancer FAQ096, April 2015 PDF Format Ovarian ... Your Practice Patient Safety & Quality Payment Reform (MACRA) Education & Events Annual ... Pamphlets Teen Health About ACOG About Us Leadership & ...

  4. Prostate Cancer Prevention

    MedlinePlus

    ... finasteride who did have prostate cancer had more aggressive tumors . The number of deaths from prostate cancer ... men that did not. The number of less aggressive prostate cancers was lower, but the number of ...

  5. What Is Pancreatic Cancer?

    MedlinePlus

    ... very important to distinguish between exocrine and endocrine cancers of the pancreas. They have distinct risk factors and causes, have ... are by far the most common type of pancreas cancer. If you are told you have pancreatic cancer, ...

  6. Learning about Skin Cancer

    MedlinePlus

    ... have red or blond hair and blue or light-colored eyes - although anyone can get skin cancer. Skin cancer is related to lifetime exposure to UV radiation, therefore most skin cancers appear after age ...

  7. NCI Designated Cancer Centers

    MedlinePlus

    ... Finding Health Care Services Costs & Medical Information Advance Directives Using Trusted Resources Understanding Cancer What Is Cancer? ... Care Services Managing Costs and Medical Information Advance Directives Using Trusted Resources Cancer Types Adolescents and Young ...

  8. Understanding Cancer Prognosis

    MedlinePlus

    ... Finding Health Care Services Costs & Medical Information Advance Directives Using Trusted Resources Understanding Cancer What Is Cancer? ... Care Services Managing Costs and Medical Information Advance Directives Using Trusted Resources Cancer Types Adolescents and Young ...

  9. Colorectal Cancer Prevention

    MedlinePlus

    ... Genetics of Colorectal Cancer Colorectal cancer is the second leading cause of death from cancer in the ... professional versions have detailed information written in technical language. The patient versions are written in easy-to- ...

  10. Liver cancer - hepatocellular carcinoma

    MedlinePlus

    Primary liver cell carcinoma; Tumor - liver; Cancer - liver; Hepatoma ... Hepatocellular carcinoma accounts for most liver cancers. This type of cancer occurs more often in men than women. It is usually diagnosed in people age 50 or older. Hepatocellular ...

  11. Artificial Sweeteners and Cancer

    MedlinePlus

    ... artificial sweeteners and cancer? Saccharin Studies in laboratory rats during the early 1970s linked saccharin with the ... cause cancer in laboratory animals .” Subsequent studies in rats showed an increased incidence of urinary bladder cancer ...

  12. Breast cancer screenings

    MedlinePlus

    ... there is no cancer. This is called a false-positive result. For women who have had cancer in ... easier to treat. Risks of screenings can include: False-positive results . This occurs when a test shows cancer ...

  13. Bladder Cancer Advocacy Network

    MedlinePlus

    ... future bladder cancer research through the Patient Survey Network. Read More... The JPB Foundation 2016 Bladder Cancer ... 2016 Young Investigator Awardees The Bladder Cancer Advocacy Network (BCAN) has announced the recipients of the 2016 ...

  14. Working during cancer treatment

    MedlinePlus

    Adler NE, Page AEK, editors. The Psychosocial Needs of Cancer Patients - Cancer Care for the Whole Patient - NCBI Bookshelf . Washington, DC: National Academies Press; 2008. American Cancer Society. Working ...

  15. Head and Neck Cancer

    MedlinePlus

    Head and neck cancer includes cancers of the mouth, nose, sinuses, salivary glands, throat, and lymph nodes in the ... swallowing A change or hoarseness in the voice Head and neck cancers are twice as common in men. Using ...

  16. What Is Stomach Cancer?

    MedlinePlus

    ... the key statistics about stomach cancer? What is stomach cancer? Cancer starts when cells in the body ... normal structure and function of the stomach. The stomach After food is chewed and swallowed, it enters ...

  17. Oral Cancer Prevention

    MedlinePlus

    ... South Asia and Southeast Asia, including China and India. Personal history of head and neck cancer A ... such as “NCI’s PDQ cancer information summary about breast cancer prevention states the risks in the following way: [ ...

  18. Oral Cancer Screening

    MedlinePlus

    ... Prevention Oral Cavity and Oropharyngeal Cancer Screening Research Oral Cavity and Oropharyngeal Cancer Screening (PDQ®)–Patient Version What ... These are called diagnostic tests . General Information About Oral Cavity and Oropharyngeal Cancer Key Points Oral cavity and ...

  19. Cervical Cancer Screening

    MedlinePlus

    ... Cancer found early may be easier to treat. Cervical cancer screening is usually part of a woman's health ... may do more tests, such as a biopsy. Cervical cancer screening has risks. The results can sometimes be ...

  20. Gallbladder Cancer: Surgery

    MedlinePlus

    ... done instead). Gallbladder cancers are sometimes found by accident after a person has a cholecystectomy for another ... Gallbladder Cancer? Causes, Risk Factors, and Prevention Early Detection, Diagnosis, and Staging Treating Gallbladder Cancer Talking With ...

  1. What Is Cancer?

    MedlinePlus

    ... called metastasis (say: meh-TASS-tuh-sis). continue Causes of Cancer You probably know a kid who had chickenpox — ... kids think that a bump on the head causes brain cancer or that bad people get cancer. This isn' ...

  2. Alcohol and Cancer

    MedlinePlus

    ... developing some kinds of cancer. The way alcohol causes cancer isn’t completely understood. In fact, there might ... For example, it could be that alcohol itself causes cancer by increasing hormone levels, or it may be ...

  3. Cigar Smoking and Cancer

    MedlinePlus

    ... there harmful chemicals in cigar smoke? Do cigars cause cancer and other diseases? What if I don’t ... to yourself and others, stop smoking. Do cigars cause cancer and other diseases? Yes. Cigar smoking causes cancer ...

  4. Male Breast Cancer

    MedlinePlus

    Although breast cancer is much more common in women, men can get it too. It happens most often to men between ... 60 and 70. Breast lumps usually aren't cancer. However, most men with breast cancer have lumps. ...

  5. Primary Peritoneal Cancer

    MedlinePlus

    ... Gynecologic Cancer Foundation wins The 2001 Associations Advance America “Award of Excellence” Press Release: Gynecologic Cancer Foundation Named One of “America’s Best 100 Charities” Press Release: Gynecologic Cancer Foundation ...

  6. Cancer and Stress

    MedlinePlus

    ... Gynecologic Cancer Foundation wins The 2001 Associations Advance America “Award of Excellence” Press Release: Gynecologic Cancer Foundation Named One of “America’s Best 100 Charities” Press Release: Gynecologic Cancer Foundation ...

  7. What Is Liver Cancer?

    MedlinePlus

    ... Topic Key statistics about liver cancer What is liver cancer? Cancer starts when cells in the body ... structure and function of the liver. About the liver The liver is the largest internal organ. It ...

  8. 1985 Cancer Facts and Figures.

    ERIC Educational Resources Information Center

    American Cancer Society, Inc., New York, NY.

    Information and statistical data about cancer are provided in seven categories. They include: (1) basic cancer data (considering how cancer works, trends in diagnosis and treatment, new cancer cases and deaths for 1985, and other areas); (2) major cancer sites (discussing lung cancer, colorectal cancer, breast cancer, 5-year survival rates/trends…

  9. Risks of Lung Cancer Screening

    MedlinePlus

    ... Cancer Treatment Small Cell Lung Cancer Treatment Lung cancer is the leading cause of cancer death in the United States. Lung cancer is ... non- skin cancer in the United States. Lung cancer is the leading cause of cancer death in men and in women. ...

  10. Control of experimental Triatoma infestans populations: effect of pour-on cypermethrin applied to chickens under natural conditions in the Argentinean Chaco region.

    PubMed

    Amelotti, I; Catalá, S S; Gorla, D E

    2014-06-01

    Among peridomestic structures, chicken coops are sites of major importance for the domestic ecology of Triatoma infestans (Hemiptera: Reduviidae). The aim of this study was to evaluate in an experimental context the effects of a cypermethrin pour-on formulation applied to chickens on blood intake, moulting and mortality in T. infestans, under the natural climatic conditions of a region endemic for Chagas' disease. Experimental chicken huts were made of bricks and covered with plastic mosquito nets. Ninety fourth-instar nymphs were maintained in each hut. The study used a completely random design in which chickens in the experimental group were treated with a cypermethrin pour-on formulation. Five replicates (= huts) of the experimental and control groups were conducted. The number of live T. infestans, blood intake and moults to fifth-instar stage were recorded at 1, 5, 20, 35 and 45 days after the application of cypermethrin. Cumulative mortality was higher in nymphs exposed to treated chickens (> 71%) than in control nymphs (< 50%) (P < 0.01). Blood intake and moulting rate were lower in nymphs fed on treated chickens than in control nymphs (P < 0.05). Pour-on cypermethrin was able to cause significant mortality, although it did not eliminate the experimental population of T. infestans.

  11. Biological Therapy in Treating Patients With Metastatic Cancer

    ClinicalTrials.gov

    2013-02-21

    Breast Cancer; Colorectal Cancer; Extrahepatic Bile Duct Cancer; Gallbladder Cancer; Gastric Cancer; Head and Neck Cancer; Liver Cancer; Lung Cancer; Metastatic Cancer; Ovarian Cancer; Pancreatic Cancer; Testicular Germ Cell Tumor

  12. Intensification and forecasting of low-pour-point diesel fuel production via modelling reactor and stabilizer column at industrial unit

    NASA Astrophysics Data System (ADS)

    Belinskaya, N. S.; Frantsina, E. V.; Ivanchina, E. D.; Popova, N. V.; Zyryanova, I. V.; Averyanova, E. V.

    2016-09-01

    In this work forecast calculation of stabilizer column in the technology of low-pour- point diesel fuel production was modelled. The results of forecast calculation were proved by full-scale experiment at diesel fuel catalytic dewaxing unit. The forecast calculation and full- scale experiment made it possible to determine the ways of mass transfer intensification, as well as to increase the degree of hydrogen sulphide removal in the column, and thereby to decrease corrosiveness of the product stream. It was found out that maintenance of the reflux rate in the range of 80-90 m3/h and injection of additional vapourizing streams, such as stable naphtha from distillation unit (in the volume of 10-22 m3/h) and hydrogen-containing gas (in the volume of 100-300 m3/h), ensure complete elimination of corrosive hydrogen sulphide from the product stream. Reduction of stream corrosive activity due to suggested solutions extends service life of equipment and pipelines at industrial catalytic dewaxing unit.

  13. Faut-il continuer à infiltrer le scalp par un anesthésique local pour une craniotomie?

    PubMed Central

    Doumiri, Mouhssine; Motiaa, Youssef; Razine, Rachid; Amor, Morad; Moussaoui, Abdelmajid; Kabbaj, Saad; Maazouzi, Wajdi

    2015-01-01

    Introduction Le maintien de la stabilité hémodynamique est un objectif primordial de l'anesthésie pour craniotomie. Peu d’études ont prouvé l'efficacité de l'infiltration du scalp par un anesthésique local pour le maintien de la stabilité hémodynamique après l'incision. L'objectif de notre travail est d’évaluer l'influence de l'infiltration de la ligne d'incision du scalp par la lidocaïne à 0,5% adrénalinée sur les paramètres hémodynamiques après incision pour craniotomie supratentorielle. Méthodes Étude prospective en double aveugle réalisée au bloc opératoire de l'hôpital des spécialités de Rabat sur une période d'une année incluant 80 malades programmés pour craniotomie supratentorielle. Les malades étaient randomisés par tirage au sort en 2 groupes: Le groupe 1 était infiltré par 40 ml du sérum salé adrénaliné (1/200 000) et le groupe 2 était infiltré par 40 ml de la lidocaïne 0,5% adrénalinée (1/200 000). Le critère de jugement principal était la pression artérielle moyenne (PAM) après l'incision. L’étude statistique a fait appel aux tests t de student et l'U- mann-whitney. Une valeur de p <0.05 était considérée significative. Résultats L’étude a inclus 80 patients (40 hommes et 40 femmes). L’âge moyen était 42,33±14,76 ans. Le poids moyen était 71,58 ±10 kg. Le 3/4 des patients était ASA 1, seulement 25% étaient ASA2. La durée moyenne de la chirurgie était de 252,06±38,62 mn. Les deux groupes étaient comparables concernant l’âge, le sexe, le poids, la durée d'intervention, le type d'abord chirurgical, la dose totale du fentanyl reçue jusqu'a l'incision, ainsi que les paramètres hémodynamiques avant l'incision. Après l'incision la FC moyenne a augmenté dans les deux groupes: 80,53±7,72 bpm dans le groupe contrôle et 76,85±8,52 bpm dans le groupe lidocaïne. La différence d'augmentation de la FC entre les deux groupes était statistiquement significative (p = 0,047). L

  14. [The development of the body weight of calves with sarcoptic mange before and after treatment with Ivomec pour-on].

    PubMed

    Löwenstein, M; Kutzer, E

    1996-01-01

    In 2 stages of a trial the bodyweight of 16 calves (6 Fleckvieh female, 6 Braunvieh female, 4 Braunvieh male), experimentally infected with Sarcoptes bovis, was controlled between birth and until 25 weeks after treatment with Ivomec pour-on (5 mg ivermectin/10 kg b.w.). On the day of treatment and before the turnout to the pasture the living Sarcoptes mites and mange lesions were determined. The two stages were characterized by different degrees of mange, which also became noticeable in the daily increase of bodyweight on an average of 200 g and 570 g respectively compared with the untreated calves. After treatment of the animals of the control group the daily increase in bodyweight within a few weeks was identical with the increase of the bodyweight of the earlier treated calves, whereby 16/19 weeks after the turnout to the pasture (female calves) and the possibility to take in grass ad libitum and 16 weeks after beginning of fattening (male calves) respectively the group of earlier treated calves still showed a higher mean bodyweight of about 27 kg and 24 kg.

  15. DISCOURS QUI RÉSISTENT À L’OBJECTIVATION : QUE PEUT-ON EN TIRER POUR L’ÉVALUATION?

    PubMed Central

    Brousselle, Astrid

    2013-01-01

    Résumé L’évaluateur doit porter attention aux distorsions qu’il contribue à créer lorsqu’il utilise l’entrevue comme méthode de collecte de données. L’évaluation est un exercice politique qui, placé dans un contexte politique, peut favoriser l’émergence de discours de résistance à l’objectivation. À partir des entrevues que nous avons effectuées lors de l’évaluation du processus d’implantation de l’initiative ONUSIDA d’accès aux médicaments au Chili, nous illustrons différentes tactiques que les acteurs utilisent et qui peuvent soit attirer la sympathie de l’évaluateur, soit faire obstacle à son besoin d’information. Nous présentons une méthode d’analyse que l’évaluateur peut utiliser pour redonner du sens aux discours de résistance. PMID:23997421

  16. Hormone Therapy for Breast Cancer

    MedlinePlus

    ... Cancers Breast Cancer Screening Research Hormone Therapy for Breast Cancer On This Page What are hormones? How do ... sensitive breast cancer: Adjuvant therapy for early-stage breast cancer : Research has shown that women treated for early- ...

  17. Cancer Information on the Internet

    MedlinePlus

    ... of online support groups. The Cancer Sur vivors Network ® The American Cancer Society’s Cancer Survivors Network (CSN) ... Health (NIH) www.cancer.gov National Comprehensive Cancer Network An alliance of 21 of the country's leading ...

  18. Renal pelvis or ureter cancer

    MedlinePlus

    Transitional cell cancer of the renal pelvis or ureter; Kidney cancer - renal pelvis; Ureter cancer ... Cancer can grow in the urine collection system, but it is uncommon. Renal pelvis and ureter cancers ...

  19. Colon cancer screening

    MedlinePlus

    Screening for colon cancer; Colonoscopy - screening; Sigmoidoscopy - screening; Virtual colonoscopy - screening; Fecal immunochemical test; Stool DNA test; sDNA test; Colorectal cancer - screening; Rectal ...

  20. Types of Cancer Research

    Cancer.gov

    An infographic from the National Cancer Institute (NCI) describing the four broad categories of cancer research: basic research, clinical research, population-based research, and translational research.

  1. Global cancer statistics, 2012.

    PubMed

    Torre, Lindsey A; Bray, Freddie; Siegel, Rebecca L; Ferlay, Jacques; Lortet-Tieulent, Joannie; Jemal, Ahmedin

    2015-03-01

    Cancer constitutes an enormous burden on society in more and less economically developed countries alike. The occurrence of cancer is increasing because of the growth and aging of the population, as well as an increasing prevalence of established risk factors such as smoking, overweight, physical inactivity, and changing reproductive patterns associated with urbanization and economic development. Based on GLOBOCAN estimates, about 14.1 million new cancer cases and 8.2 million deaths occurred in 2012 worldwide. Over the years, the burden has shifted to less developed countries, which currently account for about 57% of cases and 65% of cancer deaths worldwide. Lung cancer is the leading cause of cancer death among males in both more and less developed countries, and has surpassed breast cancer as the leading cause of cancer death among females in more developed countries; breast cancer remains the leading cause of cancer death among females in less developed countries. Other leading causes of cancer death in more developed countries include colorectal cancer among males and females and prostate cancer among males. In less developed countries, liver and stomach cancer among males and cervical cancer among females are also leading causes of cancer death. Although incidence rates for all cancers combined are nearly twice as high in more developed than in less developed countries in both males and females, mortality rates are only 8% to 15% higher in more developed countries. This disparity reflects regional differences in the mix of cancers, which is affected by risk factors and detection practices, and/or the availability of treatment. Risk factors associated with the leading causes of cancer death include tobacco use (lung, colorectal, stomach, and liver cancer), overweight/obesity and physical inactivity (breast and colorectal cancer), and infection (liver, stomach, and cervical cancer). A substantial portion of cancer cases and deaths could be prevented by broadly

  2. Santé sexuelle et reproductive des adolescentes de Bobo Dioulasso, Burkina Faso: place de la communication parents-adolescentes pour la réduction des risques

    PubMed Central

    Some, Donmozoun Télesphore; Some, Der Adolphe; Hien, Hervé; Diallo, Ramata; Zingue, Dézémon; Diallo, Ibrahim; Diagbouga, Serge; Dao, Blami

    2012-01-01

    Introduction Les adolescentes sont très vulnérables face aux Infections Sexuellement Transmissibles (IST) et au VIH/SIDA. Notre étude a pour objectifs d’explorer la qualité de la communication entre les adolescentes et leurs parents sur les IST/VIH/SIDA et de recueillir leurs suggestions pour l’amélioration de cette communication. Méthodes L’étude était transversale qualitative sur 2 mois. La population de l’étude était composée par des adolescentes de 13 à 17 ans et leurs parents habitant la ville de Bobo Dioulasso. Vingt (20) adolescentes scolarisées ont été tirés au sort dans trois établissements secondaires et 20 autres non scolarisées choisies de façon accidentelle dans la ville. Les informations ont été collectées à l’aide de 8 focus groups. Les discussions ont été enregistrées sur cassettes, retranscrites en verbatim, et analysées à l’aide du logiciel QSR NVIVO 2.0. Résultats Les adolescentes et leurs parents communiquent très peu ou pas sur les questions des IST/VIH/SIDA; l’auto-information par les paires ou les médias est la première source d’information. Pour les parents, l’information existe et est accessible aux adolescentes alors que pour ces dernières, leurs connaissances de ces maladies sont parfois erronées. L’abstinence, la fidélité et le dépistage volontaire comme moyen de prévention sont très peu évoqués par les adolescentes de même que par leurs parents. Conclusion La communication parents-adolescentes est insuffisante voire absente dans certains milieux. Il est urgent de conduire des actions auprès des adolescentes et leurs parents pour mieux les informer sur les IST/VIH/SIDA et améliorer la communication sur ces maladies. PMID:22655099

  3. [Thyroid cancer].

    PubMed

    Nagayama, Yuji

    2012-03-01

    The thyroid glands are a vulnerable organ to ionizing radiation. Indeed the epidemiological studies have revealed an increase in the incidences of thyroid cancer among atomic bomb survivors in Hiroshima and Nagasaki and radiation casualties in Chernobyl. The carcinogenic risk for the thyroids is dependent on radiation dose, and higher in younger people. Recent advances in molecular biology contribute to clarify the mechanisms for thyroid carcinogenesis at genetic and molecular levels. Here radiation-induced thyroid carcinogenesis is reviewed from epidemiological data to basic research.

  4. [Gastric cancer].

    PubMed

    Belén Fraile, M; Serra Bartual, M; Segarra Sánchez, J; Richart Rufino, M J

    1991-11-01

    Gastric cancer represents a disorder which incidence has come down last years. Its etiology is unknown, but diet is the principal determinant risk of suffering it. Clinic history is not much useful, because in the early stage symptoms can fail and in the late stage are inespecific. Election diagnosis is endoscopy. Surgery is the only curative treatment. By these features, it would be useful to left under vigilance to: a) patients 40 years older with dispepsia; b) patients following gastric operations; c) patients with disorders presenting aclorhidria. The authors report a clinic case that can be of frequent presentation in primary assistance.

  5. Cancer procoagulant.

    PubMed

    Gordon, S G

    1994-01-01

    Cancer procoagulant is a unique cysteine proteinase. The enzyme has been purified by several procedures and many of its characteristics and enzymatic properties have been determined. Several sensitive and reproducible assays are now available. Many proteinase inhibitors have been evaluated for their effect on CP; most low molecular weight inhibitors work well in a reduced environment. In the foreseeable future, protein and gene sequence information, expression vectors, molecular probes, and highly specific antibodies and inhibitors should provide the research tools to delineate a functional understanding of CP at the molecular and cellular level.

  6. [Thyroid cancer].

    PubMed

    Nagayama, Yuji

    2012-03-01

    The thyroid glands are a vulnerable organ to ionizing radiation. Indeed the epidemiological studies have revealed an increase in the incidences of thyroid cancer among atomic bomb survivors in Hiroshima and Nagasaki and radiation casualties in Chernobyl. The carcinogenic risk for the thyroids is dependent on radiation dose, and higher in younger people. Recent advances in molecular biology contribute to clarify the mechanisms for thyroid carcinogenesis at genetic and molecular levels. Here radiation-induced thyroid carcinogenesis is reviewed from epidemiological data to basic research. PMID:22514922

  7. Fabrication de transistors mono-electroniques en silicium pour le traitement classique et quantique de l'information: une approche nanodamascene

    NASA Astrophysics Data System (ADS)

    Harvey-Collard, Patrick

    Les transistors mono-electroniques (SETs) sont des dispositifs ayant un grand potentiel d'applications, comme la detection de charge ultra-sensible, la logique a basse consommation de puissance, la memoire ou la metrologie. De plus, la possibilite de pieger un seul electron et de manipuler son etat de spin pourrait permettre des applications en informatique quantique. Le silicium est un materiau interessant pour fabriquer l'ilot d'un SET. Son gap semi-conducteur permet le fonctionnement du dispositif dans le regime a un seul electron ou trou et pourrait permettre d'etendre la plage d'operation du SET en temperature en augmentant l'energie d'addition du diamant central de la valeur du gap. En outre, le silicium beneficie de plus de quarante annees d'expertise en microfabrication et d'une compatibilite avec la technologie metal--oxyde--semi-conducteur complementaire (CMOS). Cependant, la fabrication de ces dispositifs fait face a de serieuses limitations a cause de la taille nanometrique requise pour l'ilot. A ce jour, les procedes de fabrication proposes permettant l'operation a la temperature ambiante sont trop peu reproductibles pour permettre des applications a grande echelle. Dans ce memoire de maitrise, la fabrication de transistors mono-electroniques en silicium (Si-SETs) pour le traitement classique et quantique de l'information est realisee avec un procede nanodamascene. Le polissage chimico-mecanique (CMP) est introduit comme etape clef de la fabrication du transistor, permettant le controle au nanometre pres (nanodamascene) de l'epaisseur du transistor. Cet outil permet la fabrication de dispositifs ayant une geometrie auparavant impossible a realiser et ouvre la porte a l'innovation technologique. De plus, un procede de gravure du silicium par plasma a couplage inductif (ICP) est developpe pour permettre la fabrication de nanostructures de silicium sur une nanotopographie alliant le nano et le 3D. Les Si-SETs fabriques sont caracterises a basse

  8. ELIMINATION OF THE CHARACTERIZATION OF DWPF POUR STREAM SAMPLE AND THE GLASS FABRICATION AND TESTING OF THE DWPF SLUDGE BATCH QUALIFICATION SAMPLE

    SciTech Connect

    Amoroso, J.; Peeler, D.; Edwards, T.

    2012-05-11

    A recommendation to eliminate all characterization of pour stream glass samples and the glass fabrication and Product Consistency Test (PCT) of the sludge batch qualification sample was made by a Six-Sigma team chartered to eliminate non-value-added activities for the Defense Waste Processing Facility (DWPF) sludge batch qualification program and is documented in the report SS-PIP-2006-00030. That recommendation was supported through a technical data review by the Savannah River National Laboratory (SRNL) and is documented in the memorandums SRNL-PSE-2007-00079 and SRNL-PSE-2007-00080. At the time of writing those memorandums, the DWPF was processing sludge-only waste but, has since transitioned to a coupled operation (sludge and salt). The SRNL was recently tasked to perform a similar data review relevant to coupled operations and re-evaluate the previous recommendations. This report evaluates the validity of eliminating the characterization of pour stream glass samples and the glass fabrication and Product Consistency Test (PCT) of the sludge batch qualification samples based on sludge-only and coupled operations. The pour stream sample has confirmed the DWPF's ability to produce an acceptable waste form from Slurry Mix Evaporator (SME) blending and product composition/durability predictions for the previous sixteen years but, ultimately the pour stream analysis has added minimal value to the DWPF's waste qualification strategy. Similarly, the information gained from the glass fabrication and PCT of the sludge batch qualification sample was determined to add minimal value to the waste qualification strategy since that sample is routinely not representative of the waste composition ultimately processed at the DWPF due to blending and salt processing considerations. Moreover, the qualification process has repeatedly confirmed minimal differences in glass behavior from actual radioactive waste to glasses fabricated from simulants or batch chemicals. In contrast, the

  9. Integration des sciences et de la langue: Creation et experimentation d'un modele pedagogique pour ameliorer l'apprentissage des sciences en milieu francophone minoritaire

    NASA Astrophysics Data System (ADS)

    Cormier, Marianne

    Les faibles resultats en sciences des eleves du milieu francophone minoritaire, lors d'epreuves au plan national et international, ont interpelle la recherche de solutions. Cette these avait pour but de creer et d'experimenter un modele pedagogique pour l'enseignement des sciences en milieu linguistique minoritaire. En raison de la presence de divers degres de francite chez la clientele scolaire de ce milieu, plusieurs elements langagiers (l'ecriture, la discussion et la lecture) ont ete integres a l'apprentissage scientifique. Nous avions recommande de commencer le processus d'apprentissage avec des elements langagiers plutot informels (redaction dans un journal, discussions en dyades...) pour progresser vers des activites langagieres plus formelles (redaction de rapports ou d'explications scientifiques). En ce qui a trait a l'apprentissage scientifique, le modele preconisait une demarche d'evolution conceptuelle d'inspiration socio-constructiviste tout en s'appuyant fortement sur l'apprentissage experientiel. Lors de l'experimentation du modele, nous voulions savoir si celui-ci provoquait une evolution conceptuelle chez les eleves, et si, simultanement, le vocabulaire scientifique de ces derniers s'enrichissait. Par ailleurs, nous cherchions a comprendre comment les eleves vivaient leurs apprentissages dans le cadre de ce modele pedagogique. Une classe de cinquieme annee de l'ecole de Grande-Digue, dans le Sud-est du Nouveau-Brunswick, a participe a la mise a l'essai du modele en etudiant les marais sales locaux. Lors d'entrevues initiales, nous avons remarque que les connaissances des eleves au sujet des marais sales etaient limitees. En effet, s'ils etaient conscients que les marais etaient des lieux naturels, ils ne pouvaient pas necessairement les decrire avec precision. Nous avons egalement constate que les eleves utilisaient surtout des mots communs (plantes, oiseaux, insectes) pour decrire le marais. Les resultats obtenus indiquent que les eleves ont

  10. Collection of Biospecimen & Clinical Information in Patients w/ Gastrointestinal Cancers

    ClinicalTrials.gov

    2012-05-24

    Gastrointestinal Neoplasms; Gynecologic Cancers; Gynecologic Cancers Cervical Cancer; Gastric (Stomach) Cancer; Gastro-Esophageal(GE) Junction Cancer; Gastrointenstinal Stromal Tumor (GIST); Colon/Rectal Cancer; Colon/Rectal Cancer Colon Cancer; Colon/Rectal Cancer Rectal Cancer; Colon/Rectal Cancer Anal Cancer; Anal Cancer; Hepatobiliary Cancers; Hepatobiliary Cancers Liver; Pancreatic Cancer

  11. Cancer of the Testis

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 8,720 % of All New Cancer Cases 0.5% Estimated Deaths in 2016 380 % of All Cancer Deaths ... of This Cancer : In 2013, there were an estimated 240,372 men living with testis cancer in ...

  12. Cancer of the Larynx

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 13,430 % of All New Cancer Cases 0.8% Estimated Deaths in 2016 3,620 % of All Cancer ... of This Cancer : In 2013, there were an estimated 89,081 people living with larynx cancer in ...

  13. Ovarian Cancer Statistics

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 22,280 % of All New Cancer Cases 1.3% Estimated Deaths in 2016 14,240 % of All Cancer ... of This Cancer : In 2013, there were an estimated 195,767 women living with ovarian cancer in ...

  14. Cancer of the Anus

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 8,080 % of All New Cancer Cases 0.5% Estimated Deaths in 2016 1,080 % of All Cancer ... anal cancer is rare. Common Types of Cancer Estimated New Cases 2016 Estimated Deaths 2016 1. Breast ...

  15. Cancer of the Prostate

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 180,890 % of All New Cancer Cases 10.7% Estimated Deaths in 2016 26,120 % of All Cancer ... of This Cancer : In 2013, there were an estimated 2,850,139 men living with prostate cancer ...

  16. Cancer of the Thyroid

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 64,300 % of All New Cancer Cases 3.8% Estimated Deaths in 2016 1,980 % of All Cancer ... of This Cancer : In 2013, there were an estimated 637,115 people living with thyroid cancer in ...

  17. Cancer of the Esophagus

    MedlinePlus

    ... at a Glance Show More At a Glance Estimated New Cases in 2016 16,910 % of All New Cancer Cases 1.0% Estimated Deaths in 2016 15,690 % of All Cancer ... of This Cancer : In 2013, there were an estimated 36,857 people living with esophageal cancer in ...

  18. | Division of Cancer Prevention

    Cancer.gov

    The Division of Cancer Prevention (DCP) conducts and supports research to determine a person's risk of cancer and to find ways to reduce the risk. This knowledge is critical to making progress against cancer because risk varies over the lifespan as genetic and epigenetic changes can transform healthy tissue into invasive cancer.

  19. Breast cancer in men

    MedlinePlus

    ... in situ-male; Intraductal carcinoma-male; Inflammatory breast cancer-male; Paget disease of the nipple-male; Breast cancer-male ... The cause of breast cancer is not clear. But there are risk ... breast cancer more likely in men: Exposure to radiation Higher ...

  20. Living Beyond Breast Cancer

    MedlinePlus

    ... Instagram YouTube 2,600 men are diagnosed with breast cancer each year. Learn about risk factors, treatment options ... help hundreds of thousands of people affected by breast cancer. Donate Today Breast Cancer inFocus: Breast Cancer During ...

  1. [The Dutch Cancer Society Cancer Risk Test].

    PubMed

    Elias, Sjoerd G; Grooters, Hilda G; Bausch-Goldbohm, R A Sandra; van den Brandt, Piet A; Kampman, Ellen; van Leeuwen, Flora E; Peeters, Petra H M; de Vries, Esther; Wigger, Stefan; Kiemeney, L A L M Bart

    2012-01-01

    The Dutch Cancer Society developed the 'KWF Kanker Risico Test' (Cancer Risk Test) to improve the information available to the Dutch population regarding cancer risk factors. This Internet test, based under licence on the American 'Your Disease Risk' test, informs users about risk factors for 12 common types of cancer. The test provides an estimate of individual risk of a specific type of cancer and gives specific lifestyle advice that could lower that risk. This paper describes the development of the test, how it works, and its strengths and limitations.

  2. Menopause and Cancers.

    PubMed

    Einstein, Mark H; Levine, Nanci F; Nevadunsky, Nicole S

    2015-09-01

    Cancer is a disease of aging, and therefore is more prevalent after menopause. Menopausal symptoms resulting from cancer treatments are an important survivorship issue in cancer care. This article reviews the preventive strategies, utilization of health resources, and management of menopausal symptoms after cancer treatment. Preventive screening as informed by genetic and lifestyle risk, and lifestyle modification, may mitigate the risk of cancer and cancer mortality. Despite potential benefits to quality of life, hormone replacement is rarely prescribed to survivors of gynecologic malignancies. Special considerations are needed for the treatment and supportive care of menopausal symptoms in cancer survivors.

  3. [Male breast cancer].

    PubMed

    Mattson, Johanna; Vehmanen, Leena

    2016-01-01

    Breast cancer is rare in men. Diagnosis of the illness may be delayed due to the fact that the doctor and the patient fail to suspect it. Male breast cancer is treated mainly on the same principles as female breast cancer. A man affected with breast cancer should always be directed to genetic testing, as inherited mutations increasing the risk of developing cancer are more common than in female breast cancer. Most breast cancers in men are hormone receptor positive. Among hormone treatments, the antiestrogen tamoxifen exhibits the best efficacy both in early-state and advanced cases. PMID:27188086

  4. Lung cancer after treatment for breast cancer.

    PubMed

    Lorigan, Paul; Califano, Raffaele; Faivre-Finn, Corinne; Howell, Anthony; Thatcher, Nick

    2010-12-01

    Breast cancer is the most common cancer in women, and the second most common cause of cancer death after lung cancer. Improvements in the outcome of breast cancer mean that more patients are living longer and are, therefore, at risk of developing a second malignancy. The aim of this review is to present the current understanding of the risk of lung cancer arising in patients previously treated for early stage breast cancer. We review data on the effect of treatment factors (ie, surgery type, radiotherapy technique, and adjuvant chemotherapy) and patient factors (ie, age and smoking) on the risk of developing a subsequent lung cancer. The evidence suggests that older radiotherapy techniques were associated with a substantially increased risk of developing lung cancer in the ipsilateral lung, but there is no clear evidence of an increased risk with modern techniques. Smoking is an important risk factor, and increases the risk of lung cancer in those receiving radiotherapy. Adjuvant chemotherapy is not significantly associated with an increased risk. The risk of developing lung cancer increases with time elapsed since treatment, but any effect of age at treatment is unclear.

  5. Low white blood cell count and cancer

    MedlinePlus

    Neutropenia and cancer; Absolute neutrophil count and cancer; ANC and cancer ... A person with cancer can get a low white blood cell count from the cancer or from treatment for the cancer. Cancer may ...

  6. Second cancers following radiotherapy for cancer

    SciTech Connect

    Curtis, R.E.

    1997-03-01

    The study of second cancer risk after radiotherapy provides a unique opportunity to study carcinogenesis since large groups of humans are deliberately exposed to substantial doses of radiation in order to cure disease. Detailed radiotherapy records for cancer patients allow precise quantification of organ dose, and population-based cancer registries are frequently available to provide access to large groups of patients who are closely followed for long periods. Moreover, cancer patients treated with surgery alone (no radiation) are frequently available to serve as a non-irradiated comparison group. New information can be provided on relatively insensitive organs, and low dose exposures in the range of scientific interest are received by organs outside the radiation treatment fields. This paper will review several recently completed studies that characterize the risk of radiation-induced second cancers. Emphasis will be given to studies providing new information on the dose-response relationship of radiation-induced leukemia, breast cancer and lung cancer.

  7. Ixabepilone and Liposomal Doxorubicin in Advanced Ovarian Cancer

    ClinicalTrials.gov

    2016-02-11

    Fallopian Tube Cancer; Female Reproductive Cancer; Recurrent Breast Cancer; Recurrent Ovarian Epithelial Cancer; Stage III Ovarian Epithelial Cancer; Stage IV Breast Cancer; Stage IV Ovarian Epithelial Cancer

  8. Douleurs et conflits : Approche comparative et implications pour la qualité des soins en fin de vie

    PubMed Central

    Mpinga, Emmanuel Kabengele; Verloo, Henk; Rapin, Charles-Henri; Chastonay, Philippe

    2009-01-01

    Le conflit serait-il à l’organisation ce que la douleur est à un organisme ? OBJECTIFS: Explorer les similitudes et les differences entre les douleurs et les conflits dans les contextes de soins de fin de vie. Mieux comprendre le rôle des conflits dans la qualité de ces soins. MÉTHODOLOGIE: Méthode comparative et réflexive autour des politiques de prise en charge des douleurs et des conflits dans les systèmes de soins. RÉSULTATS: Les conflits et les douleurs présentent de nombreuses similitudes de par leur identité, leur typologie, leur prévalence, leur fonction d’alerte, leurs coûts économiques et sociaux, le déni ou l’occultation qui les entourent et les obstacles à leur prise en charge adéquate. À l’inverse, des différences apparaissent dans la prise en charge des douleurs comparée à celle des conflits. Ces différences portent sur l’existence des programmes de prévention et de lutte sur les scènes nationale et internationale, la mise en œuvre des activités de recherche et de formation et la visibilité sociale. Pour les conflits, cette mise en œuvre n’existe pas encore. CONCLUSION: Les décideurs en clinique et en santé publique devraient intégrer les conflits comme un indicateur de la qualité des soins et élaborer des politiques pertinentes en matière de santé. PMID:19714268

  9. Microscopie interférentielle X-UV : un outil pour l'étude des endommagements des surfaces optiques

    NASA Astrophysics Data System (ADS)

    Jamelot, G.; Ros, D.; Cassou, K.; Kazamias, S.; Klisnick, A.; Kozlová, M.; Mocek, T.; Homer, P.; Polan, J.; Stupka, M.

    2006-12-01

    Nous présentons des résultats récents concernant des premières investigations de microscopie interférentielle par laser X-UV d'endommagement optique. Le laser X-UV utilisé est un laser collisionnel en régime quasi-stationnaire émettant à 21.2 nm, développé au Prague Asterix Laser System (PALS, Prague, République Tchèque). Des échantillons de silice fondue de haute qualité, avec ou sans rayure, étaient irradiées en face avant par un laser bleu, correspondant au 3selectfontfontsize{7{9}{textrm{ème}}} harmonique du laser à iode du PALS (1.315 μ m), servant également à réaliser le laser X-UV à 21.2 nm. Celui-ci était utilisé, 5 ns après l'irradiation pour réaliser une imagerie microscopique et interférentielle de la face arrière de l'échantillon. Les résultats font apparaître des déformations locales transitoires. Des premières analyses mettent en évidence une probable variation de la rugosité de la surface. Cette démonstration expérimentale encourageante ouvre la voie à de futures investigations, notamment sur notre prochaine installation laser : LASERIX.

  10. Quelle place pour l’anesthésie locorégionale chez les brûlés?

    PubMed Central

    Chaibdraa, A.; Medjelekh, M.S.; Saouli, A.; Bentakouk, M.C.

    2015-01-01

    Summary La pratique de l’anesthésie locorégionale chez les brûlés est limitée par de nombreux facteurs. Elle est considérée comme marginale dans l’approche multimodale du traitement de la douleur par excès de nociception. Ce travail rétrospectif, sur une période de 3 années, porte sur les anesthésies locorégionales (ALR) réalisées. Les résultats obtenus vont permettre, en regard de la rareté des données de la littérature, de formuler quelques suggestions sur la place de cette technique. Il a été recensé 634 ALR, dont 96% chez des adultes. Les membres inférieurs sont les plus concernés (76%). Des anesthésies rachidiennes ont été pratiquées chez 32 patients dont 4 enfants. Les incidents sont peu fréquents (3%) et sans gravité. L’ALR peut représenter une option utile dans la stratégie multimodale de prise en charge de la douleur, la réhabilitation passive précoce et la chirurgie de recouvrement par la greffe de peau. Elle mérite d’être explorée en ambulatoire, dans la mesure où 95% des brûlés ne sont pas hospitalisés. La place de l’anesthésie-locorégionale chez les brûlés devrait susciter plus d’intérêts, pour permettre d’établir des protocoles fondés sur une réflexion pluridisciplinaire. PMID:27279806

  11. Mesure du coewicient d'absorption optique dans le silicium multicristallin de type P pour photopiles solaires

    NASA Astrophysics Data System (ADS)

    Gervais, J.

    1993-07-01

    The minority carrier diffusion length L characterizes the electrical quality of multicrystalline silicon wafers used for photovoltaics. Its determination before and after different treatments (impurity diffusion, passivation, metallisation) is needfull and requires the accurate knowledge of the optical absorption coefficient α in the near infrared. We have determinated the spectral variation of α in the range between 0.86 and 1.06 μm and we propose an analytic expression which is very close to those proposed for solar grade single crystals. In addition we have verified that the values of α are not affected by long phosphorus diffusion needed to getter metallic impurities. La longueur de diffusion des porteurs minoritaires L caractérise la qualité du silicium multicristallin utilisé pour la conversion photovoltaïque. Sa détermination avant et après les divers traitements (diffusion d'impuretés, passivation des défauts, métallisation) est indispensable et nécessite la connaissance précise du coefficient d'absorption optique α dans le proche infrarouge. Nous avons déterminé expérimentalement la variation spectrale de α entre 0,86 et 1,06 μm et nous proposons un développement qui est très proche de ceux trouvés dans des monocristaux de silicium de qualité solaire. La variation de α n'est pas influencée par des diffusions de phosphore prolongées nécessaires à l'extraction et au piégeage d'impuretés métalliques.

  12. Screening for cancer

    SciTech Connect

    Miller, A.B.

    1985-01-01

    This book contains three sections: Fundamentals of Screening, Screening Tests, and Screening for Specific Cancer Sites. Each section consists of several chapters. Some of the chapter titles are: Principles of Screening and of the Evaluation of Screening Programs; Economic Aspects of Screening; Cervical Cytology; Screening Tests for Bladder Cancer; Fecal Occult Blood Testing; Screening for Cancer of the Cervix; Screening for Gastric Cancer; and Screening for Oral Cancer.

  13. Pancreatic Cancer Early Detection Program

    ClinicalTrials.gov

    2014-07-30

    Pancreatic Cancer; Pancreas Cancer; Pancreatic Adenocarcinoma; Familial Pancreatic Cancer; BRCA 1/2; HNPCC; Lynch Syndrome; Hereditary Pancreatitis; FAMMM; Familial Atypical Multiple Mole Melanoma; Peutz Jeghers Syndrome

  14. Curiethérapie dans le traitement palliatif du cancer de l’œsophage

    PubMed Central

    Toulba, Ahmedou; Bakkali, Hanae; Boutayeb, Salwa; Kebdani, Tayeb; Ahid, Samir; Benjaafar, Noureddine

    2015-01-01

    Les patients atteints du cancer de l’œsophage ont souvent une maladie localement avancée, la dysphagie est le symptôme majeur chez la plupart de ces patients, plusieurs modalités thérapeutiques ont été utilisées pour améliorer cette dysphagie. Le but de ce travail est d’étudier l'efficacité et la tolérance de la curiethérapie haut débit de dose (HDR) endo-luminale dans le traitement palliatif des cancers de l’œsophage inopérable. Sur une période de 15 ans, l’étude a inclus les patients atteints de cancer de l’œsophage inopérable et/ou métastatique avec une dysphagie, sans extension à l'hypopharynx ou a la trachée et qui ont bénéficié d'une curiethérapie HDR avec ou sans radiothérapie externe à visée palliative. Au total 46 patients ont été inclus dans l’étude, 58,7% étaient des hommes, 42,2% avaient une dysphagie grade 2 et 37,8% étaient aphagiques, 78,6% des patients étaient performance satus PS 2, l'amaigrissement à été trouvé chez 81,4%, la localisation de la tumeur était surtout au niveau du tiers moyen et inférieur dans 97,8%, la hauteur médiane de la tumeur était de 7 cm (5,5-9), le carcinome épidermoïde était le type histologique le plus fréquent chez 31 patients (70,5%). Après un médiane de suivi de 5 mois, l'amélioration de la dysphagie a été retrouvée chez 76% des malades (p1]. L′incidence la plus élevée est observée dans certains pays notamment en Asie et en Afrique, et l′incidence dans les pays développés occidentaux est en augmentation [2]. Selon le registre du cancer de Rabat 2006-2008, le cancer de l’œsophage est rare et constitue 1,5% de tous les cancers chez l'homme [3]. Le taux de survie globale à 5 ans est de 8%, avec 80% des décès liés à l’évolution locale de la maladie [4]. Pour la minorité des patients avec une maladie localisée, le traitement par radiochimiothérapie concomitante avec ou sans chirurgie permet une amélioration de la survie [5]. Plus de 50

  15. Triapine, Cisplatin, and Radiation Therapy in Treating Patients With Cervical Cancer or Vaginal Cancer

    ClinicalTrials.gov

    2014-04-21

    Recurrent Cervical Cancer; Recurrent Vaginal Cancer; Stage IB Cervical Cancer; Stage II Vaginal Cancer; Stage IIA Cervical Cancer; Stage IIB Cervical Cancer; Stage III Cervical Cancer; Stage III Vaginal Cancer; Stage IVA Cervical Cancer; Stage IVA Vaginal Cancer; Stage IVB Cervical Cancer; Stage IVB Vaginal Cancer; Therapy-related Toxicity

  16. Butox 7.5 pour on: a deltamethrin treatment of sheep and cattle: pilot study of killing effects on Culicoides species (Ceratopogonidae).

    PubMed

    Mehlhorn, Heinz; Schmahl, Günter; D'Haese, Jochen; Schumacher, Bärbel

    2008-02-01

    Topical treatment (at the neck and along the vertebral column) with deltamethrin (Butox 7.5 pour on) of cattle (30 ml/400-kg body weight) and sheep (10 ml/60-kg body weight) was done to find out, whether the insecticide may reach in a sufficient dosage the legs, which are known to be the main biting site of Culicoides specimens that are the vectors of the recently introduced Bluetongue virus in central Europe. At days 7, 14, 21, 28, and 35 after treatment, some hair was cut off from the legs--close to the claws. Freshly (the night before) caught Culicoides obsoletus specimens were then exposed for 15, 30, 60, or 120 s to such hair and afterwards transferred to a filter paper within plastic Petri dishes to observe their fate. It turned out that even a short contact of 15 s of the Culicoides specimens with deltamethrin-treated hair of cattle or sheep was sufficient to paralyze and kill Culicoides specimens within a reasonable short time even when the hair were cut off at day 28 after treatment. While the results obtained in cattle and sheep were rather similar for days 7 and 14 after treatment, the speed of the killing effect of treated hair of cattle on Culicoides considerably slowed down beginning from day 21 after treatment. However, all the experiments clearly showed that the insecticide deltamethrin may reach the feet of cattle and may kill Culicoides specimens when the product is poured along the vertebral column. Such a treatment may considerably reduce the risk of transmission of the agents of disease. However, in the case of the thick fleece of sheep, the insecticide must be poured directly into the skin to reach full activity.

  17. Determinants of quality of life in ovarian cancer survivors: a pilot study.

    PubMed

    Teng, Flora F; Kalloger, Steve E; Brotto, Lori; McAlpine, Jessica N

    2014-08-01

    Objectif : Les traitements contre le cancer de l’ovaire et leurs résultats varient considérablement, il en résulte donc un groupe diversifié de survivantes. Nous ne disposons que de peu de données sur les questions liées à la qualité de vie (QdV) de ces patientes et sur leurs besoins les plus criants. Nous avions pour objectif de mener une étude pilote visant à déterminer les besoins des survivantes du cancer de l’ovaire en matière de QdV afin d’établir les priorités pour ce qui est des futures interventions. Méthodes : Dans le cadre de cette étude transversale, les questionnaires sur la QdV de la European Organization for Research and Treatment of Cancer Quality of Life Questionnaires (EORTC QLQ-C30 et OV28) et un questionnaire formulé par les chercheurs ont été administrés au sein d’une clinique externe. Les paramètres cliniques ont été résumés et analysés en vue d’y déceler des associations avec les mesures de la QdV. Résultats : Au total, 102 femmes ont consenti à participer à l’étude et ont rempli toutes les composantes requises. Leur âge moyen était de 58 ans (plage : de 29 à 85); 80 % d’entre elles présentaient un carcinome épithélial de l’ovaire et 66 % présentaient un carcinome séreux de haut grade histologique. Les femmes présentant des lésions de stade I (28 %), de stade II (15 %), de stade III (47 %) et de stade IV (10 %) étaient représentées dans les phases « traitement primaire » (25 %), « surveillance » (46 %), « récurrent » (23 %) et « palliatif » (7 %) du continuum de la survie. Cinquante et un pour cent des répondantes ont caractérisé le fardeau de la maladie comme étant « plutôt lourd » ou « très lourd » et cette façon de répondre ne variait pas en fonction de l’histologie ou du diagnostic. La QdV globale ne variait pas en fonction des paramètres clinico-pathologiques. Des comorbidités cardiovasculaires et respiratoires ont

  18. Understanding Lymphedema (For Cancers Other Than Breast Cancer)

    MedlinePlus

    ... My ACS » Understanding Lymphedema: For Cancers Other Than Breast Cancer Download Printable Version [PDF] » Lymphedema can be caused ... News About Cancer Expert Voices Blog Programs & Services Breast Cancer Support TLC Hair Loss & Mastectomy Products Hope Lodge® ...

  19. Second, Unrelated Cancers Strike 1 in 12 Cancer Patients

    MedlinePlus

    ... said. Chamie's team found that patients diagnosed with bladder cancer were the most at risk for developing a second cancer. Thirty-four percent of bladder cancer patients were diagnosed with a second cancer during ...

  20. How Are Cervical Cancers and Pre-Cancers Diagnosed?

    MedlinePlus

    ... How is cervical cancer staged? How is cervical cancer diagnosed? The first step in finding cervical cancer ... systems. Tests for women with symptoms of cervical cancer or abnormal Pap results Medical history and physical ...

  1. Cancer care in Jordan.

    PubMed

    Abdel-Razeq, Hikmat; Attiga, Fadwa; Mansour, Asem

    2015-06-01

    Cancer is the second leading cause of death in Jordan after cardiovascular diseases. Due to increase in life expectancy and prolonged exposure to risk factors, cancer mortality and morbidity are expected to increase as the young population ages. This increase will constitute a challenging burden on healthcare systems in Jordan and many other neighboring countries. Planning is key to managing the expected rise in the demand for cancer care, and this will require public health initiatives to guarantee access to quality cancer care. Over the past decade, cancer care in Jordan has witnessed remarkable improvement through access to advanced diagnostics and therapeutics. In this review, we address the history of cancer care in Jordan, including cancer statistics, infrastructure, workforce as well as cancer care outcomes. We also discuss many of the challenges that we face and offer suggestions for the improvement of cancer management in Jordan and the region.

  2. L’administration postnatale de corticoïdes pour traiter ou prévenir la maladie pulmonaire chronique chez les prématurés

    PubMed Central

    Jefferies, Ann L

    2012-01-01

    RÉSUMÉ Les corticoïdes sont administrés pendant la période postnatale pour prévenir et traiter la maladie pulmonaire chronique néonatale (MPC) (qu’on appelle aussi dysplasie bronchopulmonaire), une cause importante de mortalité et de morbidité chez les nourrissons prématurés. Puisque l’administration de dexaméthasone ou d’hydrocortisone pendant les sept premiers jours de vie s’associe à un plus grand risque d’infirmité motrice cérébrale, il n’est pas recommandé d’amorcer rapidement une corticothérapie pour prévenir la MPC pendant la période postnatale. Après sept jours de vie, il a été établi que la dexaméthasone réduit le taux de MPC à 36 semaines d’âge postmenstruel et a moins de répercussions sur les issues neurodéveloppementales. Aucun essai n’a évalué si les bienfaits des corticoïdes sont supérieurs à leurs effets indésirables chez les nourrissons à haut risque de MPC ou atteints d’une grave MPC. Il n’est pas recommandé d’administrer systématiquement de la dexaméthasone à tous les enfants sous respirateur, mais les cliniciens peuvent envisager un court traitement à l’aide de faibles doses de dexaméthasone à des nourrissons sélectionnés à haut risque de MPC ou atteints d’une grave MPC. Aucune donnée probante n’indique que l’hydrocortisone est une solution efficace ou sécuritaire pour remplacer la dexaméthasone, et peu de données probantes appuient l’utilisation systématique de corticoïdes en aérosol dans le cadre de la prévention ou du traitement. On peut envisager la corticothérapie en aérosol pour remplacer la dexaméthasone dans le traitement de nourrissons sélectionnés atteints d’une grave MPC. La présente révision remplace le document de principes publié conjointement avec l’American Academy of Pediatrics en 2002.

  3. Summary Report For The Analysis Of The Sludge Batch 7b (Macrobatch 9) DWPF Pour Stream Glass Sample For Canister S04023

    SciTech Connect

    Johnson, F. C.

    2013-11-18

    In order to comply with the Defense Waste Processing Facility (DWPF) Waste Form Compliance Plan for Sluldge Batch 7b, Savannah River National Laboratory (SRNL) personnel characterized the Defense Waste Processing Facility (DWPF) pour stream (PS) glass sample collected while filling canister S04023. This report summarizes the results of the compositional analysis for reportable oxides and radionuclides and the normalized Product Consistency Test (PCT) results. The PCT responses indicate that the DWPF produced glass that is significantly more durable than the Environmental Assessment glass.

  4. BWRSAR (Boiling Water Reactor Severe Accident Response) calculations of reactor vessel debris pours for Peach Bottom short-term station blackout

    SciTech Connect

    Hodge, S.A.; Ott, L.J.

    1988-01-01

    This paper describes recent analyses performed by the BWR Severe Accident Technology (BWRSAT) Program at Oak Ridge National Laboratory to estimate the release of debris from the reactor vessel for the unmitigated short-term station blackout accident sequence. Calculations were performed with the BWR Severe Accident Response (BWRSAR) code and are based upon consideration of the Peach Bottom Atomic Power Station. The modeling strategies employed within BWRSAR for debris relocation within the reactor vessel are briefly discussed and the calculated events of the accident sequence, including details of the calculated debris pours, are presented. 4 refs., 13 figs., 3 tabs.

  5. Conception et calibration d'un sonoreacteur pour l'oxydation de la cellulose par le systeme TEMPO/NaOCl/NaBr

    NASA Astrophysics Data System (ADS)

    Paquin, Michel

    Avec le contexte economique actuel dans le domaine des pates et papiers au Canada, l'industrie se doit de diversifier ses produits mis en marche. La fermeture de plus de 20 usines depuis 2005, une baisse du PIB de l'industrie de 1,4 milliard CAD entre 1999--2008, une baisse de la demande de 2,4 %, une diminution du prix de la pate de 20,9 % depuis juillet 2009. La delocalisation du secteur vers l'Asie et l'hemisphere sud sont autant de raisons pour laquelle l'industrie se doit d'etre a l'avant plan de nouvelle technologie a base de fibre de bois. Pour augmenter leur rentabilite, l'industrie se doit de diversifier ses produits dans d'autres secteurs que le simple fabricant de papier impression-ecriture. Sa diversification passe par l'elaboration de nouveaux papiers a valeur ajoutee (papier conducteur, papier bioactif, etc.), par l'utilisation de la biomasse forestiere pour la production d'energie, par l'utilisation de la biomasse forestiere pour l'elaboration d'une plateforme de chimie verte, par l'utilisation de la lignine pour le developpement de polymeres et par l'utilisation de la fibre cellulosique pour la fabrication de nanomateriaux. La fabrication de nanofibrille de cellulose peut devenir un des produits qui servira a diversifier la production des usines de pates et papiers. Les nanofibrilles de cellulose possedent des proprietes mecaniques et chimiques exceptionnelles. Les nanofibrilles de cellulose sont fabriquees a partir d'une oxydation selective de la pate kraft de feuillu avec le systeme TEMPO-NaOCl-NaBr. L'oxydation selective de l'alcool primaire en C6 du monomere de glucose sous forme de carboxylates engendre une modification chimique de la cellulose qui accroit l'hydrophilicite des fibrilles. Suite a cette oxydation, nous devons effectuer une desintegration mecanique de la fibre kraft de feuillu oxydee pour separer les fibrilles. Le processus d'oxydation de la fibre par le systeme TEMPO-NaOCl-NaBr et sa defibrillation par la suite engendre une

  6. The efficacy of exercise therapy in reducing shoulder pain related to breast cancer: a systematic review.

    PubMed

    Tatham, Barbara; Smith, Jenna; Cheifetz, Oren; Gillespie, Jessica; Snowden, Katie; Temesy, Jessica; Vandenberk, Lisa

    2013-01-01

    Objectif : Des recherches récentes indiquent que les interventions de physiothérapie comme l'exercice et la thérapie manuelle peuvent être efficaces pour réduire la fréquence des effets secondaires liés au traitement du cancer du sein, y compris la fatigue, la douleur, les nausées et une baisse de la qualité de vie. Cette critique systématique vise à déterminer l'efficacité de la thérapie par l'exercice lorsqu'il s'agit d'atténuer une douleur à l'épaule liée à un traitement du cancer du sein et à déterminer les mesures de résultat qu'il est possible d'utiliser pour évaluer la douleur à l'épaule dans cette population. Méthode : On a procédé à un examen systématique des publications courantes en utilisant des portails comme PEDro, CINAHL, PubMed, Ovid MEDLINE (1996 à avril 2011) et AMED (1985 à avril 2011). On a cherché dans des bases de données des études pertinentes publiées jusqu'en avril 2011. Les participants aux études pertinentes étaient des adultes (≥18 ans) qui avaient reçu un diagnostic primaire de cancer du sein à n'importe quel moment au cours du traitement de leur maladie. Résultats : Six articles ont fait l'objet d'examens à l'aveugle effectués par des examinateurs indépendants. Six études ont satisfait aux critères d'inclusion, chacune analysant des types différents d'exercice—renforcement/stabilisation de l'épaule, du bras ou de l'omoplate, exercices posturaux, exercices généraux et conditionnement, exercices portant sur l'amplitude du mouvement de l'épaule et exercices contre le lymphœdème—en ce qui a trait à leur efficacité pour réduire la douleur à l'épaule liée au traitement du cancer du sein. Conclusions : Les résultats indiquent que les exercices prescrits contre la douleur à l'épaule liée au traitement du cancer du sein peuvent être efficaces. On n'a pu toutefois tirer de conclusions définitives parce que les études incluses manquaient de qualité méthodologique et

  7. Cancer patterns in Canada.

    PubMed Central

    Wigle, D T; Mao, Y; Semenciw, R; Morrison, H I

    1986-01-01

    Cancer is diagnosed in about 70 000 Canadians each year and is the leading cause of the loss of potential years of life before age 75 among women. Life-threatening forms of cancer will develop in at least one of every three Canadian newborns during their lifetimes if current cancer risks are not reduced. Lung and breast cancers are, respectively, the leading causes of premature death due to cancer among men and women. Compared with other countries Canada has low death rates for stomach cancer but high rates for certain smoking-related cancers (those of the lung and of the mouth and throat), leukemia and cancers of the colon, breast and lymphatic tissues. Newfoundland has the highest rates of death from stomach cancer and the lowest rates of death from prostatic cancer, whereas the western provinces have the opposite pattern. The rates of death from lung cancer among men are highest in Quebec, the province with the highest prevalence of smoking. In Canada the overall rates of death from cancer increased by 32% among men from 1951 to 1983. However, among women they declined by 12% from 1951 to 1976 and increased from 1976 to 1983, particularly among those aged 55 to 74. The rising rates of death due to lung cancer were primarily responsible for these increases. Lung cancer will likely displace breast cancer as the leading cancer killer of Canadian women by 1990. Given the relatively low survival rates for cancers caused by smoking and the lack of substantial improvement in rates for the most frequent types of cancer, preventive strategies that include effective measures to reduce tobacco consumption are urgently required. PMID:3942929

  8. Endometrial cancer: Not your grandmother's cancer.

    PubMed

    McAlpine, Jessica N; Temkin, Sarah M; Mackay, Helen J

    2016-09-15

    Worldwide, the incidence of endometrial carcinoma (EC) is rapidly increasing, and the highest disease burden is reported in North America and Western Europe. Although the prognosis remains good for patients with are diagnosed with early stage EC, for those with recurrent or metastatic disease, the options are few, and the median overall survival is short. It is imperative to gain a greater understanding of all aspects of EC, limit its effect on scarce health care resources and, more importantly, prevent this cancer from significantly impacting future generations of women. An exciting new era of endometrial cancer research and clinical management has begun that incorporates biologically and clinically relevant genomic and clinicopathologic parameters. Continued collaborative research efforts and funding are essential if we are to advance our understanding of this disease and improve clinical outcomes. Cancer 2016. © 2016 American Cancer Society. Cancer 2016;122:2787-2798. © 2016 American Cancer Society. PMID:27308732

  9. Epidemiology of Lung Cancer.

    PubMed

    Mao, Yousheng; Yang, Ding; He, Jie; Krasna, Mark J

    2016-07-01

    Lung cancer has been transformed from a rare disease into a global problem and public health issue. The etiologic factors of lung cancer become more complex along with industrialization, urbanization, and environmental pollution around the world. Currently, the control of lung cancer has attracted worldwide attention. Studies on the epidemiologic characteristics of lung cancer and its relative risk factors have played an important role in the tertiary prevention of lung cancer and in exploring new ways of diagnosis and treatment. This article reviews the current evolution of the epidemiology of lung cancer. PMID:27261907

  10. Lung cancer in women.

    PubMed

    Coscio, Angela M; Garst, Jennifer

    2006-07-01

    Lung cancer is the most common cancer in both men and women; however, there are some clear gender-based differences. As the incidence of lung cancer is declining in men, the incidence of lung cancer is increasing in women. Women are more likely than men to have adenocarcinoma, a histologic subtype that correlates with worsened prognosis, but women have improved survival compared with men. Genetic predisposition and the presence of estrogen receptors in lung cancer cells may predispose women to developing lung cancer. Further studies are needed to understand the mechanism and significance of these findings. PMID:17254523

  11. Screening for prostate cancer

    NASA Technical Reports Server (NTRS)

    Weirich, Stephen A.

    1993-01-01

    Despite recent advances in both the survival and cure rates for many forms of cancer, unfortunately the same has not been true for prostate cancer. In fact, the age-adjusted death rate from prostate cancer has not significantly improved since 1949, and prostate cancer remains the most common cancer in American men, causing the second highest cancer mortality rate. Topics discussed include the following: serum testosterone levels; diagnosis; mortality statistics; prostate-sppecific antigen (PSA) tests; and the Occupational Medicine Services policy at LeRC.

  12. Breast Cancer Detection

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The BioScan System was developed by OmniCorder Technologies, Inc. at the Jet Propulsion Laboratory. The system is able to locate cancerous lesions by detecting the cancer's ability to recruit a new blood supply. A digital sensor detects infrared energy emitted from the body and identifies the minute differences accompanying the blood flow changes associated with cancerous cells. It also has potential use as a monitoring device during cancer treatment. This technology will reduce the time taken to detect cancerous cells and allow for earlier intervention, therefore increasing the overall survival rates of breast cancer patients.

  13. Drugs Approved for Lung Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Lung Cancer This page lists cancer ... in lung cancer that are not listed here. Drugs Approved for Non-Small Cell Lung Cancer Abitrexate ( ...

  14. Drugs Approved for Bladder Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Bladder Cancer This page lists cancer ... in bladder cancer that are not listed here. Drugs Approved for Bladder Cancer Atezolizumab Cisplatin Doxorubicin Hydrochloride ...

  15. Drugs Approved for Pancreatic Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Pancreatic Cancer This page lists cancer ... in pancreatic cancer that are not listed here. Drugs Approved for Pancreatic Cancer Abraxane (Paclitaxel Albumin-stabilized ...

  16. Drugs Approved for Testicular Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Testicular Cancer This page lists cancer ... in testicular cancer that are not listed here. Drugs Approved for Testicular Cancer Blenoxane (Bleomycin) Bleomycin Cisplatin ...

  17. Drugs Approved for Vulvar Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Vulvar Cancer This page lists cancer ... in vulvar cancer that are not listed here. Drugs Approved to Prevent Vulvar Cancer Gardasil (Recombinant HPV ...

  18. Drugs Approved for Cervical Cancer

    MedlinePlus

    ... Professionals Questions to Ask about Your Treatment Research Drugs Approved for Cervical Cancer This page lists cancer ... in cervical cancer that are not listed here. Drugs Approved to Prevent Cervical Cancer Cervarix (Recombinant HPV ...

  19. General Information about Cervical Cancer

    MedlinePlus

    ... Research Cervical Cancer Treatment (PDQ®)–Patient Version General Information About Cervical Cancer Go to Health Professional Version ... the NCI website . Cervical Cancer During Pregnancy General Information About Cervical Cancer During Pregnancy Treatment of cervical ...

  20. Breast Cancer Rates by State

    MedlinePlus

    ... Associated Lung Ovarian Prostate Skin Uterine Cancer Home Breast Cancer Rates by State Language: English Español (Spanish) Recommend ... from breast cancer each year. Rates of Getting Breast Cancer by State The number of people who get ...

  1. General Information about Breast Cancer

    MedlinePlus

    ... of Breast & Gynecologic Cancers Breast Cancer Screening Research Breast Cancer Treatment (PDQ®)–Patient Version General Information About Breast Cancer Go to Health Professional Version Key Points Breast ...

  2. Understanding your colon cancer risk

    MedlinePlus

    Colon cancer risk factors are things that increase the chance that you could get cancer. Some risk factors ... risk factors never get cancer. Other people get colon cancer but do not have any known risk factors. ...

  3. Pancreatic Cancer Stage 2B

    MedlinePlus

    ... 2B Description: Stage IIB pancreatic cancer; drawing shows cancer in the pancreas and in nearby lymph nodes. Also shown are the bile duct, pancreatic duct, and duodenum. Stage IIB pancreatic cancer. Cancer has spread to nearby lymph nodes and ...

  4. Pancreatic Cancer Stage 2A

    MedlinePlus

    ... 2A Description: Stage IIA pancreatic cancer; drawing shows cancer in the pancreas and duodenum. The bile duct and pancreatic duct are also shown. Stage IIA pancreatic cancer. Cancer has spread to nearby tissue and organs ...

  5. Limb Salvage After Bone Cancer

    MedlinePlus

    ... Germ Cell Tumors Kidney/Wilms Tumor Liver Cancer Neuroblastoma Osteosarcoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma Thyroid ... Tumor Liver Cancer Lymphoma (Non-Hodgkin) Lymphoma (Hodgkin) Neuroblastoma Osteosarcoma Retinoblastoma Rhabdomyosarcoma Skin Cancer Soft Tissue Sarcoma ...

  6. Cancers Selected for Study - TCGA

    Cancer.gov

    The Cancer Genome Atlas researchers are mapping the genetic changes in 33 cancers. Find out which cancers have been selected for study, the criteria for selection and the scientific questions being asked about each cancer.

  7. Treatment Option Overview (Parathyroid Cancer)

    MedlinePlus

    ... not lung cancer. There is no standard staging process for parathyroid cancer. Parathyroid cancer is described as ... Clinical trials are part of the cancer research process. Clinical trials are done to find out if ...

  8. Stages of Male Breast Cancer

    MedlinePlus

    ... Breast & Gynecologic Cancers Breast Cancer Screening Research Male Breast Cancer Treatment (PDQ®)–Patient Version General Information about Male Breast Cancer Go to Health Professional Version Key Points Male ...

  9. Cervical cancer - screening and prevention

    MedlinePlus

    Cancer cervix - screening; HPV - cervical cancer screening; Dysplasia - cervical cancer screening ... Almost all cervical cancers are caused by HPV (human papilloma virus). HPV is a common virus that spreads through sexual contact. Certain types ...

  10. How Is Bone Cancer Diagnosed?

    MedlinePlus

    ... Topic How is bone cancer staged? How is bone cancer diagnosed? A patient’s symptoms, physical exam, and results ... and other imaging tests. Imaging tests to detect bone cancer X-rays Most bone cancers show up on ...

  11. Tea drinking habits and oesophageal cancer in a high risk area in northern Iran: population based case-control study

    PubMed Central

    Islami, Farhad; Pourshams, Akram; Nasrollahzadeh, Dariush; Kamangar, Farin; Fahimi, Saman; Shakeri, Ramin; Abedi-Ardekani, Behnoush; Merat, Shahin; Vahedi, Homayoon; Semnani, Shahryar; Abnet, Christian C; Brennan, Paul; Møller, Henrik; Saidi, Farrokh; Dawsey, Sanford M

    2009-01-01

    Objective To investigate the association between tea drinking habits in Golestan province, northern Iran, and risk of oesophageal squamous cell carcinoma. Design Population based case-control study. In addition, patterns of tea drinking and temperature at which tea was drunk were measured among healthy participants in a cohort study. Setting Golestan province, northern Iran, an area with a high incidence of oesophageal squamous cell carcinoma. Participants 300 histologically proved cases of oesophageal squamous cell carcinoma and 571 matched neighbourhood controls in the case-control study and 48 582 participants in the cohort study. Main outcome measure Odds ratio of oesophageal squamous cell carcinoma associated with drinking hot tea. Results Nearly all (98%) of the cohort participants drank black tea regularly, with a mean volume consumed of over one litre a day. 39.0% of participants drank their tea at temperatures less than 60°C, 38.9% at 60-64°C, and 22.0% at 65°C or higher. A moderate agreement was found between reported tea drinking temperature and actual temperature measurements (weighted κ 0.49). The results of the case-control study showed that compared with drinking lukewarm or warm tea, drinking hot tea (odds ratio 2.07, 95% confidence interval 1.28 to 3.35) or very hot tea (8.16, 3.93 to 16.9) was associated with an increased risk of oesophageal cancer. Likewise, compared with drinking tea four or more minutes after being poured, drinking tea 2-3 minutes after pouring (2.49, 1.62 to 3.83) or less than two minutes after pouring (5.41, 2.63 to 11.1) was associated with a significantly increased risk. A strong agreement was found between responses to the questions on temperature at which tea was drunk and interval from tea being poured to being drunk (weighted κ 0.68). Conclusion Drinking hot tea, a habit common in Golestan province, was strongly associated with a higher risk of oesophageal cancer. PMID:19325180

  12. Cervical cancer.

    PubMed

    Shepherd, John H

    2012-06-01

    Standard treatment for invasive cervical cancer involves either radical surgery or radiotherapy. Childbearing is therefore impossible after either of these treatments. A fertility-sparing option, however, by radical trachelectomy has been shown to be effective, provided that strict criteria for selection are followed. Fertility rates are high, whereas recurrence is low, indicating that a more conservative approach to dealing with early small cervical tumours is feasible. Careful preoperative assessment by magnetic resonance imaging scans allows accurate measurement of the tumour with precise definition to plan surgery. This will ensure an adequate clear margin by wide excision of the tumour excising the cervix by radical vaginal trachelectomy with surrounding para-cervical and upper vaginal tissues. An isthmic cerclage is inserted to provide competence at the level of the internal orifice. A primary vagino-isthmic anastomosis is conducted to restore continuity of the lower genital tract. Subsequent pregnancies require careful monitoring in view of the high risk of spontaneous premature rupture of the membranes. Delivery by classical caesarean section is necessary at the onset of labour or electively before term. Over 1100 such procedures have been carried out vaginally or abdominally, resulting in 240 live births. Radical vaginal trachelectomy with a laparoscopic pelvic-node dissection offers the least morbid and invasive route for surgery, provided that adequate surgical skills have been obtained. PMID:22353492

  13. American Cancer Society lung cancer screening guidelines.

    PubMed

    Wender, Richard; Fontham, Elizabeth T H; Barrera, Ermilo; Colditz, Graham A; Church, Timothy R; Ettinger, David S; Etzioni, Ruth; Flowers, Christopher R; Gazelle, G Scott; Kelsey, Douglas K; LaMonte, Samuel J; Michaelson, James S; Oeffinger, Kevin C; Shih, Ya-Chen Tina; Sullivan, Daniel C; Travis, William; Walter, Louise; Wolf, Andrew M D; Brawley, Otis W; Smith, Robert A

    2013-01-01

    Findings from the National Cancer Institute's National Lung Screening Trial established that lung cancer mortality in specific high-risk groups can be reduced by annual screening with low-dose computed tomography. These findings indicate that the adoption of lung cancer screening could save many lives. Based on the results of the National Lung Screening Trial, the American Cancer Society is issuing an initial guideline for lung cancer screening. This guideline recommends that clinicians with access to high-volume, high-quality lung cancer screening and treatment centers should initiate a discussion about screening with apparently healthy patients aged 55 years to 74 years who have at least a 30-pack-year smoking history and who currently smoke or have quit within the past 15 years. A process of informed and shared decision-making with a clinician related to the potential benefits, limitations, and harms associated with screening for lung cancer with low-dose computed tomography should occur before any decision is made to initiate lung cancer screening. Smoking cessation counseling remains a high priority for clinical attention in discussions with current smokers, who should be informed of their continuing risk of lung cancer. Screening should not be viewed as an alternative to smoking cessation.

  14. OPT-821 With or Without Vaccine Therapy in Treating Patients With Ovarian Epithelial Cancer, Fallopian Tube Cancer, or Peritoneal Cancer in Second or Third Complete Remission

    ClinicalTrials.gov

    2016-03-16

    Stage IA Fallopian Tube Cancer; Stage IA Ovarian Cancer; Stage IB Fallopian Tube Cancer; Stage IB Ovarian Cancer; Stage IC Fallopian Tube Cancer; Stage IC Ovarian Cancer; Stage IIA Fallopian Tube Cancer; Stage IIA Ovarian Cancer; Stage IIB Fallopian Tube Cancer; Stage IIB Ovarian Cancer; Stage IIC Fallopian Tube Cancer; Stage IIC Ovarian Cancer; Stage IIIA Fallopian Tube Cancer; Stage IIIA Ovarian Cancer; Stage IIIA Primary Peritoneal Cancer; Stage IIIB Fallopian Tube Cancer; Stage IIIB Ovarian Cancer; Stage IIIB Primary Peritoneal Cancer; Stage IIIC Fallopian Tube Cancer; Stage IIIC Ovarian Cancer; Stage IIIC Primary Peritoneal Cancer; Stage IV Fallopian Tube Cancer; Stage IV Ovarian Cancer; Stage IV Primary Peritoneal Cancer

  15. Localized Prostate Cancer

    MedlinePlus

    ... a decision aid for men with clinically localized prostate cancer (available at http://effectivehealthcare.ahrq.gov/prostate_da) ... A Decision Aid for Men With Clinically Localized Prostate Cancer Page 1 of 24 Introduction Men with clinically ...

  16. Screening for Prostate Cancer

    MedlinePlus

    ... of Internal Medicine Summaries for Patients Screening for Prostate Cancer: A Guidance Statement From the Clinical Guidelines Committee ... Physicians The full report is titled “Screening for Prostate Cancer: A Guidance Statement From the Clinical Guidelines Committee ...

  17. Prostate cancer screenings

    MedlinePlus

    ... not do an accurate job of screening for prostate cancer. ... and anxiety, even if you do not have prostate cancer. Side effects from further testing. If your PSA test is higher than normal, you may need to ...

  18. Therapeutic cancer vaccines.

    PubMed

    Melief, Cornelis J M; van Hall, Thorbald; Arens, Ramon; Ossendorp, Ferry; van der Burg, Sjoerd H

    2015-09-01

    The clinical benefit of therapeutic cancer vaccines has been established. Whereas regression of lesions was shown for premalignant lesions caused by HPV, clinical benefit in cancer patients was mostly noted as prolonged survival. Suboptimal vaccine design and an immunosuppressive cancer microenvironment are the root causes of the lack of cancer eradication. Effective cancer vaccines deliver concentrated antigen to both HLA class I and II molecules of DCs, promoting both CD4 and CD8 T cell responses. Optimal vaccine platforms include DNA and RNA vaccines and synthetic long peptides. Antigens of choice include mutant sequences, selected cancer testis antigens, and viral antigens. Drugs or physical treatments can mitigate the immunosuppressive cancer microenvironment and include chemotherapeutics, radiation, indoleamine 2,3-dioxygenase (IDO) inhibitors, inhibitors of T cell checkpoints, agonists of selected TNF receptor family members, and inhibitors of undesirable cytokines. The specificity of therapeutic vaccination combined with such immunomodulation offers an attractive avenue for the development of future cancer therapies.

  19. Hereditary Diffuse Gastric Cancer

    MedlinePlus

    ... with the syndrome is recommended. What are the estimated cancer risks associated with HDGC? Not everyone who ... the lifetime risk for diffuse gastric cancer is estimated to be 70% to 80% for men and ...

  20. Breast Cancer Disparities

    MedlinePlus

    ... 2.65 MB] Read the MMWR Science Clips Breast Cancer Black Women Have Higher Death Rates from Breast ... of Page U.S. State Info Number of Additional Breast Cancer Deaths Among Black Women, By State SOURCE: National ...

  1. Prostate Cancer Foundation

    MedlinePlus

    ... Close About Us Our Story A Legacy of Leadership About the Prostate Cancer Foundation CEO Message Why ... Cancer Board of Directors Annual Report & Financials Our Leadership Leadership Team A Legacy of Leadership Featured Take ...

  2. What Is Endometrial Cancer?

    MedlinePlus

    ... endometrial adenocarcinomas. These types tend to be more aggressive than most endometrial cancers. They tend to grow ... forming glands. Grade 3 cancers tend to be aggressive and have a poorer outlook than lower-grade ...

  3. Esophagus Cancer: Palliative Therapy

    MedlinePlus

    ... your doctor about cancer of the esophagus? Palliative therapy for cancer of the esophagus Palliative therapy is ... therapy Electrocoagulation Laser ablation Argon plasma coagulation Radiation therapy External-beam radiation can often help relieve some ...

  4. Chemotherapy for Testicular Cancer

    MedlinePlus

    ... Chemo is an effective way to destroy any cancer cells that break off from the main tumor and travel to lymph nodes or distant organs. Chemo is often used to cure testicular cancer when it has spread outside the ...

  5. Liver (Hepatocellular) Cancer Screening

    MedlinePlus

    ... United States than in other parts of the world. Liver cancer is uncommon in the United States, ... is the fourth most common cancer in the world. In the United States, men, especially Chinese American ...

  6. Esophageal Cancer Prevention

    MedlinePlus

    ... Find NCI funding for small business innovation, technology transfer, and contracts Training Cancer Training at NCI (Intramural) ... radiofrequency ablation . This procedure uses radio waves to heat and destroy abnormal cells, which may become cancer. ...

  7. Cancer Pharmacoepidemiology and Pharmacogenomics

    Cancer.gov

    NCI has an increasing focus on pharmacoepidemiology related to pharmaceutical use and cancer risk, recurrence and survival, as well as pharmacoepidemiology related to treatment response and adverse outcomes from chemotherapeutic agents and other medications used to treat cancer.

  8. What Is Cancer Proteomics?

    MedlinePlus

    ... gov The National Institutes of Health Clinical Proteomics Technologies for Cancer Contact Us Intranet Sign Up for ... of proteomics that involves the application of proteomic technologies on clinical specimens such as blood. Cancer, in ...

  9. Prostate cancer (image)

    MedlinePlus

    Treatment of prostate cancer varies depending on the stage of the cancer (i.e., spread) and may include surgical removal, radiation, chemotherapy, hormonal manipulation or a combination of these treatments.

  10. Skin Cancer Treatment

    MedlinePlus

    ... Skin Cancer Skin color and being exposed to sunlight can increase the risk of nonmelanoma skin cancer ... carcinoma include the following: Being exposed to natural sunlight or artificial sunlight (such as from tanning beds) ...

  11. Stages of Skin Cancer

    MedlinePlus

    ... Skin Cancer Skin color and being exposed to sunlight can increase the risk of nonmelanoma skin cancer ... carcinoma include the following: Being exposed to natural sunlight or artificial sunlight (such as from tanning beds) ...

  12. Stages of Oropharyngeal Cancer

    MedlinePlus

    ... adjuvant therapy . New types of surgery, including transoral robotic surgery , are being studied for the treatment of oropharyngeal cancer. Transoral robotic surgery may be used to remove cancer from ...

  13. Prostate cancer staging

    MedlinePlus

    ... test. A faster increase could show a more aggressive tumor. A prostate biopsy is done in your ... suggest the cancer is slow growing and not aggressive. Higher numbers indicate a faster growing cancer that ...

  14. Prostate Cancer Screening

    MedlinePlus

    ... treat. There is no standard screening test for prostate cancer. Researchers are studying different tests to find those ... PSA level may be high if you have prostate cancer. It can also be high if you have ...

  15. Radiation Exposure and Cancer

    MedlinePlus

    ... what we know about these types of high-energy radiation and how they affect cancer risk. Cancer Compensation Programs for People Exposed to Radiation as Part of Nuclear Weapons Testing Between 1945 and 1962, several countries ...

  16. Coping - Adjusting to Cancer

    Cancer.gov

    Information that helps you and your family face life’s changes from cancer. Includes talking with your doctors, talking to children, changes for the family, and information on cancer support groups.

  17. Oral Cancer Foundation

    MedlinePlus

    ... Famous People Famous historical Arts & Entertainment Sports figures ... The Oral Cancer Foundation The Oral Cancer Foundation is a national public service, non-profit entity designed to reduce suffering ...

  18. What Is Prostate Cancer?

    MedlinePlus Videos and Cool Tools

    ... the more likely he is to develop the disease. Physician: Come on back, first room. Narrator: Most ... cancer. Prostate cancer is really a spectrum of diseases where on one end of the spectrum there ...

  19. Cancer procoagulant--CP.

    PubMed

    Rucińska, M; Gacko, M; Skrzydlewski, Z

    1997-01-01

    A review of literature concerning cancer procoagulant (CP) has been carried out. This procoagulant directly activates coagulation factor X to factor Xa. Possibilities of utilising determinations of this activator in diagnostics and prognostics of the cancerous disease are discussed.

  20. Stomach Cancer Risk Questionnaire

    MedlinePlus

    ... Jewish Hospital and Washington University School of Medicine Stomach cancer is fairly rare in the US, but ... the early stages. To estimate your risk of stomach cancer and learn about ways to lower that ...

  1. Stages of Breast Cancer

    MedlinePlus

    ... to treat breast cancer. Internal radiation therapy with strontium-89 (a radionuclide ) is used to relieve bone pain ... breast cancer that has spread to the bones. Strontium-89 is injected into a vein and travels to ...

  2. Breast Cancer Treatment

    MedlinePlus

    ... to treat breast cancer. Internal radiation therapy with strontium-89 (a radionuclide ) is used to relieve bone pain ... breast cancer that has spread to the bones. Strontium-89 is injected into a vein and travels to ...

  3. Breast cancer staging

    MedlinePlus

    Doctors use 7 main stages to describe breast cancer. Stage 0, also called carcinoma in situ. This is cancer that is confined to the lobules or ducts in the breast. It has not spread to surrounding tissue. ...

  4. Stages of Anal Cancer

    MedlinePlus

    ... An x-ray is a type of energy beam that can go through the body and onto ... cancer may include the following: Local resection . External-beam radiation therapy with or without chemotherapy . If cancer ...

  5. Anal Cancer Treatment

    MedlinePlus

    ... An x-ray is a type of energy beam that can go through the body and onto ... cancer may include the following: Local resection . External-beam radiation therapy with or without chemotherapy . If cancer ...

  6. Tobacco and cancer (image)

    MedlinePlus

    Tobacco and its various components increase the risk of several types of cancer especially cancer of the lung, mouth, larynx, esophagus, bladder, kidney, pancreas, and cervix. Smoking also increases ...

  7. What Is Testicular Cancer?

    MedlinePlus

    ... a microscope). Some cases are found incidentally (by accident) when a testicular biopsy is done for another ... Testicular Cancer? Causes, Risk Factors, and Prevention Early Detection, Diagnosis, and Staging Treating Testicular Cancer Talking With ...

  8. Smokeless Tobacco and Cancer

    MedlinePlus

    ... harmful chemicals in smokeless tobacco? Does smokeless tobacco cause cancer? Does smokeless tobacco cause other diseases? Can a ... chemicals in smokeless tobacco have been found to cause cancer ( 1 ). The most harmful chemicals in smokeless tobacco ...

  9. Detecting Prostate Cancer

    MedlinePlus Videos and Cool Tools

    ... abnormal and raises the index of suspicion that cancer may be present. Narrator: While the use of ... examination does not mean that they have prostate cancer. It means that we're concerned about it ...

  10. Cancer immunotherapy in children

    Cancer.gov

    More often than not, cancer immunotherapies that work in adults are used in modified ways in children. Seldom are new therapies developed just for children, primarily because of the small number of pediatric patients relative to the adult cancer patient

  11. Cancer in Children

    MedlinePlus

    Cancer begins in the cells, which are the building blocks of your body. Normally, new cells form ... can form a tumor. Benign tumors aren't cancer while malignant ones are. Malignant tumor cells can ...

  12. Cancer Alternative Therapies

    MedlinePlus

    You have many choices to make about your cancer treatment. One choice you might be thinking about ... are acupuncture, chiropractic, and herbal medicines. People with cancer may use CAM to Help cope with the ...

  13. Adrenal Gland Cancer

    MedlinePlus

    ... either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Most adrenal gland tumors are ... and may not require treatment. Malignant adrenal gland cancers are uncommon. Types of tumors include Adrenocortical carcinoma - ...

  14. Vaginal and Vulvar Cancer

    MedlinePlus

    ... Centers for Disease Control and Prevention’s (CDC) Inside Knowledge: Get the Facts About Gynecologic Cancer campaign. The ... the facts about gynecologic cancer, providing important “inside knowledge” about their bodies and health. Get the Facts ...

  15. Cancer Health Disparities

    Cancer.gov

    Basic information about cancer health disparities in the U.S., factors that contribute to the disproportionate burden of cancer in some groups, and examples of disparities in incidence and mortality among certain populations.

  16. The effects of select factors on the pour point, cloud point, and cold filter plugging point of soybean-, choice white grease-, and corn-based biodiesel blends

    NASA Astrophysics Data System (ADS)

    Jezierski, Kelly

    Soybean-, choice white grease-, and corn-based biodiesel from different sources blended with cold flow modifiers from 0.0% to 4.0% by weight were tested for cloud point (CP), cold filter plugging point (CFPP), and pour point (PP). The soybean-based blend that showed the best result was four weight percent of TechnolRTM B100 Biodiesel Cold Flow Improver used on B99 obtained from Wacker Oil, which resulted in a CP of -3°C, a PP of -18 °C, and a CFPP of -7°C. The TechnolRTM product slightly improved the CFPP of corn-based biodiesel when used at 2.0 weight percent, reducing it from -1°C to -4°C. No significant improvements were observed on choice white grease-based biodiesel blends. It was shown that, CFPP is not a linear function of the CP; the order of cold flow properties here occasionally follows the trend of the Cloud Point being greater than or equal to the Pour Point which is greater than or equal to the Cold Filter Plugging Point; and the source of the biodiesel also has a significant effect on the cold flow properties.

  17. Consensus formalisé: recommandations de pratiques cliniques pour la prise en charge de la lombalgie aiguë du patient africain

    PubMed Central

    Elleuch, Mohamed; El Maghraoui, Abdellah; Griene, Brahim; Nejmi, Mati; Ndongo, Souhaibou; Serrie, Alain

    2015-01-01

    La lombalgie aiguë est la pathologie rhumatismale la plus fréquente en Afrique. L’épidémiologie et la présentation clinique ne diffèrent pas de celles observées sur les autres continents. En revanche, les aspects psycho-sociaux, la disponibilité des traitements, l'accès aux soins et le poids culturel des médecines traditionnelles sont autant de spécificités qui ont conduit à la réalisation du 1er consensus d'experts en rhumatologie pour la prise en charge du patient africain. Destiné aux praticiens, ce travail collaboratif multinational a pour objectif de fournir 11 recommandations de pratiques cliniques simples, fondées sur les preuves, et adaptées aux conditions de l'exercice médical en Afrique. Leur ambition est d'améliorer la prise en charge de la lombalgie aigue par une évaluation initiale clinique pertinente, une diminution des examens radiologiques inutiles, une prescription médicamenteuse adéquate et l'abandon de procédures invasives inappropriées. PMID:26955427

  18. The efficacy and safety of alphacypermethrin as a pour-on treatment for water buffalo (Bubalus bubalis) infested with Haematopinus tuberculatus (Phthiraptera: Haematopinidae).

    PubMed

    Veneziano, Vincenzo; Neglia, Gianluca; Cimmino, Roberta; Balestrieri, Anna; Rufrano, Domenico; Bastianetto, Eduardo; Santoro, Mario; Gokbulut, Cengiz

    2013-08-01

    The sucking louse Haematopinus tuberculatus (Burmeister 1839) is an ectoparasite of buffaloes, cattle, camels, and American bison. Alphacypermethrin (ACYP) is a pyrethroid insecticide commonly used to control arthropods of veterinary and public health interest. Therapeutics, such as antiparasitic compounds, is often administered to buffaloes based on dosage and intervals recommended for cattle because very few drugs have buffalo-specific label indications. A trial was conducted on 20 louse-infested buffaloes at a farm to assess the efficacy and safety of ACYP pour-on, at the manufacturer's recommended dose for cattle, on buffaloes naturally infested by H. tuberculatus. Ten animals were assigned to ACYP-treated group (ACYP-group) and ten to untreated control group (C-group). On day 0, all ACYP-group buffaloes received alphacypermethrin pour-on. Louse counts were performed on days -1, 7, 14, 21, 28, 35, 42, 49, and 56 at eight predilection sites on the skin of each buffalo. ACYP was completely effective (100%) at day 7, highly effective (99.8%) at day 14, and completely effective (100%) from day 21 until the end of the study (day 56 post-treatment). During the trial, ACYP was well tolerated by all animals as there were no observed clinically adverse reactions. The results of this trial suggest that ACYP is an effective, safe, and user-friendly compound suitable for treatment of buffaloes with natural louse infestations.

  19. Predicting the Effect of Pouring Temperature on the Crystallite Density, Remelting, and Crystal Growth Kinetics in the Solidification of Aluminum Alloys

    NASA Astrophysics Data System (ADS)

    Ferguson, J. B.; Tabandeh-Khorshid, Meysam; Mantas, John C.; Rohatgi, Pradeep K.; Cho, Kyu; Kim, Chang-Soo

    2014-08-01

    In the present work, we developed an analytical model to describe the effect of pouring temperature on the crystallite density, remelting, growth kinetics, and the resultant final grain size for aluminum (Al)-based alloys synthesized using gravity casting. The model predicts that there are three regimes of pouring temperature/grain size-related behavior: (i) at low superheats, grain size is small and relatively constant; (ii) at intermediate levels of superheat, there appears to be a transitional behavior where grain size increases in a rapid, non-linear fashion; and (iii) at high superheats, grain size increases linearly with increasing temperature. This general pattern is expected to be shifted upward as distance from the bottom of the casting increases, which is likely a result of the slower cooling rates and/or longer solidification times with increasing distance from the bottom of the casting. To validate the model, a set of experiments has been conducted using Al-Cu and Al-Si alloys ( i.e., Al-3.0 wt pct Cu, Al-4.5 wt pct Cu, and Al-A356.2 alloys), and the experimental measurements showed consistent results with theoretical predictions.

  20. Fistule artério-veineuse ulno-basilique pour hémodialyse au CHU de Yaoundé: à propos de deux cas

    PubMed Central

    Guifo, Marc Leroy; Kaze, Francois Folefak; Ndoumbe, Aurélien; Halle, Marie Patrice; Bitang, Louis Joss; Pisoh, Christopher Tagnyin; Takongmo, Samuel

    2013-01-01

    La fistule ulno-basilique est une éventualité peu sollicitée dans le choix des abords vasculaires pour hémodialyse. Elle est construite sur la veine basilique qui est souvent la seule veine épargnée par les ponctions veineuses de routine dans les services de médecine. De par l'existence de nombreuses complications comme l'infection des prothèses et des cathéters centraux, les thromboses, les patients hémodialysés chroniques nécessitent plus d'un accès veineux au cours de leur suivi médical. Les fistules artério-veineuses natives présentent moins de risques de complications que les prothèses d'une façon générale et une plus longue durée de vie. La confection d'une fistule sur une topographie proximale compromet le recourt à cette veine sur une localisation distale ultérieurement. Il existe donc une hiérarchisation dont il faut tenir compte pour une utilisation optimale du capital veineux disponible. Nous rapportons ici deux observations concernant des patients chez qui deux fistules ulno-basiliques ont été réalisées avec succès au CHU de Yaoundé. PMID:24244789