Evaluation of banana and plantain (Musa spp.) accessions tolerant to black sigatoka disease in Dominica, Guyana, St-Lucia and St-Vincent and the Grenadines ; Evaluation des adhésions de banane et de plantain (espèces de Musa) tolérances pour noircir la maladie de sigatoka en Dominique, en Guyane, à Sainte-Lucia et à Saint-Vincent et les Grenadines. Auteur(s) : Linton, Gregory Année de publication : Loading the player... Éditeur(s) : CARDI : Caribbean Agricultural Rechearch and Development Institute Université des Antilles. Service commun de la documentation Extrait de : 52e congrès annuel de la Société caribéenne des plantes alimentaires / 52nd annual meeting of the Caribbean food crops society (CFCS), du 10 au 16 juillet 2016. INRA, CFCS Description : Banana and plantain (Musa spp) are important foreign exchange earners in Guyana and the Windward Islands of the Caribbean. Black Sigatoka Disease (BSD) also referred to as black leaf streak disease is one of the most destructive diseases of banana and plantain and is present within the region. In Guyana within two years following its introduction in 2008, the industry was totally decimated, recording a 100% decline, turning the country to a net banana importer. Also, from 2009 ? 2012 the disease spread in the Windward Islands causing as much as 100% decrease in the export of banana. The disease is caused by the ascomycete fungus, Mycosphaerella fijiensis (anamorph Pseudocercospora fijiensis) and is aggressive, challenging to control and results in enormous crop damage if left uncontrolled. In an effort to develop an integrated management approach to the disease the Caribbean Agricultural Research and Development Institute (CARDI) with financial assistance from the Caribbean Development Bank (CDB) is evaluating five FHIA banana and plantain accessions and eight IITA plantain accessions for tolerance to BSD. The evaluation is presently conducted in four Caribbean countries, Dominica, Guyana, St Lucia and St Vincent and the Grenadines. In each country, four distinct agro- ecological zones were selected for the trial evaluation blocks and using a randomized block design, four blocks were established in each country. Five FHIA accessions: FHIA-01, FHIA-03, FHIA-18, FHIA-21 and FHIA-23 are being evaluated in Dominica, St Lucia and St Vincent and the Grenadines whereas, plantain accessions: PITA-17, PITA-21, PITA-22, PITA-23, PITA-24 and PITA-26 are to be evaluated in Guyana for tolerance to the disease. Cavendish are used as regional controls and as borders rows to increase disease pressure. The disease parameters evaluated are youngest leaf spotted (YLS), disease development time (DDT), leaf emission rate (LER), disease severity at 6 months, bunch emergence and harvest, and index of standing leaves. Agronomic data; days from planting to flowering, bunch weight, number of hands in bunch, average weight of hands and average number of fingers per hand and bunch, as well as organoleptic characteristics of both cooked and ripe fruits are also evaluated. The early data collection, of the FHIA only accessions, show trends in the disease tolerance and agronomic performance as well as their adaptability in the different agro-ecological zone. The trends indicate better disease tolerance of FHIA varieties with higher leaf counts before, at bunching and at harvest. The organoleptic test shows a preference to FHIA 03 and FHIA 21. La banane et le plantain (espèces de Musa) sont les acquéreurs de devises étrangères importants en Guyane et en Îles du Vent des Caraïbe. La maladie noire de Sigatoka (schéma) également désignée sous le nom de la maladie noire de filet de feuille est l'une des maladies les plus destructives de la banane et du plantain et est présente dans la région. En Guyane dans un délai de deux ans après son introduction en 2008, l'industrie a été totalement décimée, enregistrant une baisse de 100%, tournant le pays à un importateur net de banane. En outre, à partir de 2009-2012 la propagation de maladie en Îles du Vent causant pas moins de la diminution de 100% de l'exportation de la banane. La maladie est provoquée par le champignon d'ascomycète, fijiensis de Mycosphaerella (fijiensis anamorph de Pseudocercospora) et est agressive, contestant pour commander et les résultats dans l'énorme culture endommagent si laissé incontrôlé. Dans un effort de développer une approche intégrée de gestion à la maladie l'institut agricole des Caraïbes de recherche et développement (CARDI) avec l'aide financière de la banque de développement des Caraïbes (BDC) évalue des adhésions de banane et de plantain de cinq FHIA et huit adhésions de plantain d'IITA pour la tolérance au schéma. L'évaluation est actuellement effectuée quatre pays des Caraïbes, Dominique, Guyane, St Lucia et Saint-Vincent-et-les Grenadines. Dans chaque pays, quatre agro zones écologiques distinctes ont été sélectionnées pour les blocs d'essai d'évaluation et employant une conception de bloc randomisé, quatre blocs ont été établis dans chaque pays. Cinq adhésions de FHIA : FHIA-01, FHIA-03, FHIA-18, FHIA-21 et FHIA-23 sont évalués en Dominique, au St Lucia et au Saint-Vincent-et-les Grenadines tandis que, des adhésions de plantain : PITA-17, PITA-21, PITA-22, PITA-23, PITA-24 et PITA-26 doivent être évalués en Guyane pour la tolérance à la maladie. Cavendish sont employés en tant que contrôles régionaux et comme rangées de frontières pour augmenter la pression de la maladie. Les paramètres de la maladie évalués sont la plus jeune feuille repérée (YLS), le temps d'élaboration de la maladie (DDT), le taux d'émission de feuille (LER), la sévérité de la maladie à 6 mois, émergences et récoltes de groupe, et index des feuilles debout. Données agronomiques ; des jours de la plantation à la floraison, du poids de groupe, nombre de mains dans le poids de groupe et moyen des mains et du nombre moyen de doigts par main et groupe, aussi bien que les caractéristiques organoleptiques des fruits cuits et mûrs sont également évalués. La collecte de données tôt, des adhésions de FHIA seulement, exposition tend dans la tolérance de maladie et la représentation agronomique aussi bien que leur adaptabilité dans la zone agro-écologique différente. Les tendances indiquent qu'une meilleure tolérance de maladie des variétés de FHIA avec une plus haute feuille compte avant, à se rassembler et à la récolte. L'essai organoleptique montre une préférence à FHIA 03 et à FHIA 21. Siècle(s) traité(s) : 21 Droits : CC-BY-NC-ND - Attribution - Pas d'utilisation commerciale - Pas de modification Permalien : http://www.manioc.org/fichiers/V16266 V16266 | Partager Voir aussi Agriculture Agriculture de plantation Culture maraîchère Dominique Guyana Sainte-Lucie Saint-Vincent-et-les-Grenadines Télécharger |
A groundbreaking ceremony for the Critical Care Block Auteur(s) : Princess Margaret Hospital Public Hospitals Authority Éditeur(s) : Princess Margaret Hospital Princess Margaret Hospital ( Nassau, Bahamas ) Résumé : Cover title Booklet issued for the groundbreaking ceremony for the new critical care block, Wednesday November 16, 2011, 11:00 am, Princess Margaret Hospital Northern Campus. Includes a description of the Critical Care Block project. Droits : All rights reserved by the source institution. http://ufdc.ufl.edu/AA00025296/00001 | Partager |
Boats docked in the harbor of Great Guana Cay, Abaco, Bahamas ; The Bryant Slides Collection ; The Bryant Slides Collection, Bahamas Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. This image shows boats anchored beside a dock while two row boats are tethered to the shore. One of the boats near the dock is the "Isabella," which belongs to John Richard Yeend, also known as Captain Jack R. Yeend. During February of 1957, “Isabella” travelled to many of the smaller islands of the Abacos including Green Turtle Cay, Great Guana Cay, Allen Cay, and Grand Cay. Nearby on the harbor's shore are two row boats and a blossoming palm tree surrounded by stone blocks on the shore of Great Guana Cay, Abaco, Bahamas. Slide labeled Harbor Great Guiana Feb '57. Bahamas -- North America -- Great Guana Cay, Abaco Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 10:1 http://ufdc.ufl.edu/AA00028713/00001 | Partager |
Boats anchored near a dock on Green Turtle Cay, Abaco, Bahamas ; The Bryant Slides Collection ; The Bryant Slides Collection, Bahamas Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Two boats one with the name “Isabella, New York” and another named “Joy G.” are anchored near a dock on Green Turtle Cay, Abaco, Bahamas. "Isabella" belongs to John Richard Yeend, also known as Captain Jack R. Yeend. During February of 1957, “Isabella” travelled to many of the smaller islands of the Abacos including Green Turtle Cay, Great Guana Cay, Allen Cay, and Grand Cay. On the dock are stacks of concrete blocks. People are gathered near the boat titled Isabella. Slide labeled Dock Green Turtle Feb '57. Bahamas -- North America -- Green Turtle Cay, Abaco Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 8:3 http://ufdc.ufl.edu/AA00028556/00001 | Partager |
A woman on a dock near anchored boats on Green Turtle Cay, Abaco, Bahamas ; The Bryant Slides Collection ; The Bryant Slides Collection, Bahamas Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Two boats one with the name “Isabella, New York” and another named “Joy G.” are anchored near a dock on Green Turtle Cay, Abaco, Bahamas. "Isabella" belongs to John Richard Yeend, also known as Captain Jack R. Yeend. During February of 1957, “Isabella” travelled to many of the smaller islands of the Abacos including Green Turtle Cay, Great Guana Cay, Allen Cay, and Grand Cay. On the dock are stacks of concrete blocks. A woman in a white dress sits on the dock while a woman and man in a row boat approach. Slide labeled Dock Green Turtle Feb '57. Bahamas -- North America -- Green Turtle Cay, Abaco Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 8:4 http://ufdc.ufl.edu/AA00028557/00001 | Partager Voir aussi Green Turtle Cay (Abaco, Bahamas) Green Turtle Cay (Abaco, Bahamas) -- Description and travel Green Turtle Cay (Abaco, Bahamas) -- Social life and customs Boats and boating -- Bahamas -- Green Turtle Cay -- 1950-1960 Yeend, John Richard, 1911-1971 Docks -- Bahamas -- Green Turtle Cay -- 1950-1960 Concrete blocks -- Bahamas -- Green Turtle Cay -- 1950-1960 |
Catecholamine, blood lactate and ventilatory responses to multi-cycle-run blocks Auteur(s) : Hue, Olivier Le Gallais, Daniel Boussana, Alain Galy, Olivier Chamari, Karim Mercier, Betty Prefaut, Christian Auteurs secondaires : Adaptations au Climat Tropical, Exercice et Santé (ACTES) ; Université des Antilles et de la Guyane (UAG) Laboratoire Sport, Performance, Santé ; Université Montpellier 1 (UM1) Laboratoire de Physiologie des Interactions ; CHU Arnaud de Villeneuve Centre d'Optimisation de la Performance Motrice ; Université Montpellier 1 (UM1) Interface Biopsychosociale des A.P.A. ; Université Montpellier 1 (UM1) Centre d'Optimisation de la Performance Motrice ; Université Montpellier 1 (UM1) Research Unit National Center of Medicine and Science in Sport (CNMSS) ; Research Unit National Center of Medicine and Science in Sport Éditeur(s) : HAL CCSD ACSM Résumé : International audience PURPOSE AND METHODS: This study was designed to determine whether the physiological responses elicited during the run part of repeated bouts of cycle-run exercise are similar to those required during the run segment of a cycle-run succession. Thirteen male triathletes underwent four successive laboratory trials: 1) an incremental treadmill test, 2) an incremental cycle test, 3) 30 min of cycling followed by 20 min of running (C-R), and 4) five repeated bouts of 6 min of cycling and 4 min of running (X-CR). During the C-R and X-CR trials, venous blood samples were obtained to measure lactate, epinephrine and norepinephrine concentrations. During all trials, ventilatory data were collected every min using an automated breath-by-breath system. RESULTS: The results showed that 1) the cardiorespiratory responses observed during running were similar in the X-CR and C-R trials, 2) the lactate concentration was similar in both trials, 3) the epinephrine concentration was greater (277.9 +/- 11.9 vs 169.8 +/- 86.7 pg x mL(-1), P < 0.025) in X-CR than in C-R, and 4) the norepinephrine concentration was similar in both trials, except at the first cycle-run succession (T1) of X-CR. CONCLUSION: We concluded that 1) multi-block training is a good method to stimulate the specific adaptations required for the cycle-run succession, and particularly for the cycle-run transition, and 2) multi-block training seems to induce a greater catecholaminergic response, which may be due to a combination of an inherent effect of this type of training and the triathletes' relative lack of experience with it. In any case, the efficacy of the multi-block model needs to be more thoroughly evaluated over the course of a longer-term training program. Medicine & Science in Sports & exercise hal-00720475 https://hal.univ-antilles.fr/hal-00720475 https://hal.univ-antilles.fr/hal-00720475/document https://hal.univ-antilles.fr/hal-00720475/file/Article_2_.pdf | Partager |
People on the docks near anchored boats in Green Turtle Cay, Abaco, Bahamas ; The Bryant Slides Collection ; The Bryant Slides Collection, Bahamas Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Two boats one with the name “Isabella, New York” and another named “Joy G.” are anchored near a dock in Green Turtle Cay, Abaco, Bahamas. "Isabella" belongs to John Richard Yeend, also known as Captain Jack R. Yeend. During February of 1957, “Isabella” travelled to many of the smaller islands of the Abacos including Green Turtle Cay, Great Guana Cay, Allen Cay, and Grand Cay. On the dock are stacks of concrete blocks. A young woman wearing a blue dress and a hair scarf walks by people sitting on the edge of the dock. Two men are in a row boat near the dock. In the distance is a sail boat. Slide labeled Dock Green Turtle Feb '57. Bahamas -- North America -- Green Turtle Cay, Abaco Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 8:10 http://ufdc.ufl.edu/AA00028660/00001 | Partager Voir aussi Green Turtle Cay (Abaco, Bahamas) Green Turtle Cay (Abaco, Bahamas) -- Description and travel Green Turtle Cay (Abaco, Bahamas) -- Social life and customs Boats and boating -- Bahamas -- Green Turtle Cay -- 1950-1960 Yeend, John Richard, 1911-1971 Docks -- Bahamas -- Green Turtle Cay -- 1950-1960 Concrete blocks -- Bahamas -- Green Turtle Cay -- 1950-1960 |
Damage caused by storm of September 9, 1919, Havana ; Manuel R. Bustamante Photograph Collection. Résumé : Written on verso: "View of the driveway connecting Havana and Vedado showing huge portions of the new concrete seawall broken up by the waves during the storm on Sept. 9th, 1919. They were carried entirely across the new boulevard being constructed along the seawall, then over the double street car track and finally deposited in the middle of the roadway at the foot of Santa Clara battery, as shown. These blocks were so large and heavy that it was necessary to blast them into smaller sections for removal. The rough slabs in the foreground are pieces of the concrete base of the new boulevard mentioned above." "Photo by Harris Bros., Co., O'Reilly 104, Havana, Cuba." Also: "Used 1919." Probably used by the Munson Steamship Line in their publication, The Cuba Review. 1910-1920 CHC5017 Havana (Cuba) Droits : http://merrick.library.miami.edu/digitalprojects/copyright.html chc50170001630001001 1444 | Partager |
Local neighborhood in Barbados ; The Bryant Slides Collection ; The Bryant Slides Collection, Barbados Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Barbados neighborhood filled with chattel houses on blocks close to the road. Adults and children can be seen on the street, along with bicycles and a Volkswagen Beetle. Some of the trees include palm and breadfruit trees. Slide labeled Barb 18 native street. Barbados -- Caribbean region Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@ucf.edu CFM1972_01a Sheet 20: 11 http://ufdc.ufl.edu/AA00017917/00001 | Partager |
Memorial to the Spanish American War ; The Bryant Slides Collection ; The Bryant Slides Collection, Cuba Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Located at the San Juan Hill Historic-Military Park, honoring the Cuban War of Independence, known in the US as the Spanish-American War. Cuba -- Caribbean region -- Santiago de Cuba,San Juan Hill Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 26: 10 http://ufdc.ufl.edu/CA01200409/00001 | Partager Voir aussi Spanish-American War, 1898 -- Cuba Santiago de Cuba -- San Juan Hill -- Cuba Forts & fortifications -- Cuba Spanish-American War, 1898 -- Military facilities -- Spanish -- Cuba -- Block house Blockhouses -- Cuba Artillery -- Cuba Architecture -- Cuba Santiago de Cuba -- Parks Cuba -- Description and travel Historic sites -- Cuba -- Santiago de Cuba |
Present-day movements of tectonic blocks in the Betic-Rif Arc from GPS measurements 1999-2005 Auteur(s) : Tahayt, A. Mourabit, T. Rigo, A. Feigl, K. L. Fadil, A. Mcclusky, S. Reilinger, R. Serroukh, M. Auteurs secondaires : Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) Éditeur(s) : HAL CCSD Springer Verlag Résumé : GPS velocities and seismicity across the Betic-Rif Arc structural domains (Morocco and Iberia) provide a basis to evaluate present-day seismotectonic processes between different deformation belts. The results show asymmetric movements in the complex Alboran system accommodating the convergence between the African (Nubian) and Eurasian plates. While the Betic Mountains are attached to Iberia, moving toward the southeast with respect to Africa, the Rif is divided into three blocks with distinct displacements relative to Nubia: (1) the Tangier block moving southeastward, (2) the Central Rif block moving SSW, and (3) the Oriental Rif block undergoing clockwise rotation. GPS-derived motions decrease in rate from the Rif nappes complex to the foreland. ISSN: 0010-7999 hal-00411144 https://hal.archives-ouvertes.fr/hal-00411144 DOI : 10.1016/j.crte.2008.02.003 | Partager Voir aussi GPS seismotectonics Rif Alboran block present-day tectonics [SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDE.MCG] Environmental Sciences/Global Changes |
Children beside a zinc roofed house in Jamaica ; The Bryant Slides Collection ; The Bryant Slides Collection, Jamaica Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Four children are in the yard outside of a one story, windowless house with a yellow door surrounded by trees in Jamaica. The yard contains concrete blocks, a steel drum, bananas, breadfruit trees, and palm trees. Slide labeled Native House & Family. Jamaica -- Caribbean region Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a http://ufdc.ufl.edu/AA00030852/00001 | Partager |
Mountainside homes on the West coast of Jamaica ; The Bryant Slides Collection ; The Bryant Slides Collection, Jamaica Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Four block homes, constructed along the mountainside, overlooking a harvested sugarcane field on the West coast of Jamaica. Slide labeled Jam. West. Jamaica -- Caribbean region Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a http://ufdc.ufl.edu/AA00030861/00001 | Partager |
Evaluating the effect of vesticular-arbuscular mycorrhizae on tomato plantgrowth and production ; Évaluation de l'effet des mycorhizes vésico-arbusculaires sur la croissance et la production de tomates Auteur(s) : Awadhpersad, Vijantie Année de publication : Loading the player... Éditeur(s) : University of Suriname Université des Antilles. Service commun de la documentation Extrait de : 52e congrès annuel de la Société caribéenne des plantes alimentaires / 52nd annual meeting of the Caribbean food crops society (CFCS), du 10 au 16 juillet 2016. INRA, CFCS Description : Tomato is one of the most popular vegetables in the world. Therefore, for improvement in crop productivity in Suriname and most other countries, excessive application of pesticides and synthetic fertilizers is used. These result in gradual depletion of soil fertility and microbial diversity. Conventionally managed soils are found to exhibit a poorer micro flora and a lower biological activity then organically managed soils. Recently much attention is paid to organic cultivation and the use of bio fertilizers as a supplement for chemical fertilizers. VAM fungi have the potential to improve the sustainability of tomato production by improving yield and quality. Therefore, the aim of the study was to evaluate the effect of two different concentrations of commercially available vesicular - arbuscular mycorrhiza on the plant growth and fruit production of two tomato varieties (Lycopersicon esculentum Mill.) in the greenhouse.The experiment was set up as a randomized factorial block design with two independent factors and consisted of six treatments and three replications. The factors were two tomato varieties: hybrid 61 and hybrid 501 and two concentrations of VAM namely 2.5 and 10 g. VAM/plant. Biomass was determined two times, at bloom initiation and at the end of the experiment. The growth parameters were measured once per week. The production was recorded only for the first two harvest times. Data was statistically analyzed using three-way ANOVA. The results of this experiment showed that the VAM fungi had a positive influence (p < 0.05) on the production for both varieties of tomatoes. And it also resulted in earlier reproduction. There was no significant difference in production (p > 0.05) between the two concentrations of VAM inoculum used. Siècle(s) traité(s) : 21 Droits : CC-BY-NC-ND - Attribution - Pas d'utilisation commerciale - Pas de modification Permalien : http://www.manioc.org/fichiers/V16303 V16303 | Partager |
Chattel houses in Barbados ; The Bryant Slides Collection ; The Bryant Slides Collection, Barbados Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Barbados is known for its traditional homes, “chattel houses,” because they could be disassembled and moved. Originally, these dwellings were built for plantation workers. Later, they were built by freed slaves and sharecroppers, who usually built the dwelling on blocks close to main roads so that they could be easily relocated as many were not landowners but rather tenants. Hallmarks of chattel house construction are steep gable roofs (to deflect wind and rain) and wood panel walls. The wooden jalousie windows on hinges and fretwork around windows offered shade and protection against the rain. Slide labeled Barb 17 typical house. Barbados -- Caribbean region Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@ucf.edu CFM1972_01a Sheet 20: 10 http://ufdc.ufl.edu/AA00017916/00001 | Partager |
Guests by a hotel pool in Nassau, New Providence, Bahamas ; The Bryant Slides Collection ; The Bryant Slides Collection, Bahamas Nassau Hope Town Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. The are organized by geographical location. Guests beside a hotel swimming pool. In the background above the hotel is Christ Church Cathedral’s square tower which was erected in 1830 from lime-stone blocks. The church is located on George Street. Slide labeled Nassau Mar .'46. Bahamas -- North America -- Nassau, New Providence Island Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 17:5 http://ufdc.ufl.edu/AA00029520/00001 | Partager |
Antiplasmodial activities of dyes against Plasmodium falciparum asexual and sexual stages: Contrasted uptakes of triarylmethanes Brilliant green, Green S (E142), and Patent Blue V (E131) by erythrocytes Auteur(s) : Leba, Louis-Jérôme Popovici, Jean Estevez, Yannick Pelleau, Stéphane Legrand, Eric Musset, Lise DUPLAIS, Christophe Auteurs secondaires : Laboratoire de Parasitologie, Centre National de Référence du Paludisme - Région Antilles-Guyane ; Institut Pasteur de la Guyane - Réseau International des Instituts Pasteur (RIIP) - WHO Collaborating Center for Surveillance of Antimalarial Drug Resistance Université de Guyane (UG) Institut Pasteur du Cambodge Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Université de Guyane (UG) - Centre National de la Recherche Scientifique (CNRS) Génétique et Génomique des Insectes vecteurs ; Institut Pasteur [Paris] - Centre National de la Recherche Scientifique (CNRS) This work was supported by European commission (REGPOT-CT-2011-285837-STRonGer), by Institut Pasteur (ACIP A10-2013) and by Investissement d’Avenir of the ANR (CEBA: ANR-10-LABX-25-01) We thank MR4 for providing us Plasmodium falciparum 7G8 (MRA-926 contributed by Thomas Wellems) and 3D7 (MRA-102 contributed by Daniel J. Carucci) malaria parasites. ANR-10-LABX-25-01/10-LABX-0025, CEBA, CEnter of the study of Biodiversity in Amazonia(2010) Éditeur(s) : HAL CCSD Résumé : International audience The search for safe antimalarial compounds acting against asexual symptom-responsible stages and sexual transmission-responsible forms of Plasmodium species is one of the major challenges in malaria elimination programs. So far, among current drugs approved for human use, only primaquine has transmission-blocking activity. The discovery of small molecules targeting different Plasmodium falcip-arum life stages remains a priority in antimalarial drug research. In this context, several independent studies have recently reported antiplasmodial and transmission-blocking activities of commonly used stains, dyes and fluorescent probes against P. falciparum including chloroquine-resistant isolates. Herein we have studied the antimalarial activities of dyes with different scaffold and we report that the triar-ylmethane dye (TRAM) Brilliant green inhibits the growth of asexual stages (IC 50 2 mM) and has exflagellation-blocking activity (IC 50 800 nM) against P. falciparum reference strains (3D7, 7G8) and chloroquine-resistant clinical isolate (Q206). In a second step we have investigated the antiplasmodial activities of two polysulfonated triarylmethane food dyes. Green S (E142) is weakly active against P. falciparum asexual stage (IC 50 x 17 mM) whereas Patent Blue V (E131) is inactive in both antimalarial assays. By applying liquid chromatography techniques for the culture supernatant analysis after cell washings and lysis, we report the detection of Brilliant green in erythrocytes, the selective uptake of Green S (E142) by infected erythrocytes, whereas Patent Blue V (E131) could not be detected within non-infected and 3D7-infected erythrocytes. Overall, our results suggest that two polysulfonated food dyes might display different affinity with transporters or channels on infected RBC membrane. International journal for parasitology. Drugs and drug resistance Droits : http://creativecommons.org/licenses/by-nc-sa/ pasteur-01614675 https://hal-pasteur.archives-ouvertes.fr/pasteur-01614675 https://hal-pasteur.archives-ouvertes.fr/pasteur-01614675/document https://hal-pasteur.archives-ouvertes.fr/pasteur-01614675/file/Leba%20LJ-article%20colorant-version%20publiee.pdf DOI : 10.1016/j.ijpddr.2017.07.002 | Partager |
Street in Port-au-Prince ; Bryant Slides Collection ; Bryant Slides Collection, Haiti Auteur(s) : Unknown ( Photographer ) Résumé : The slides were taken on collecting trips sponsored by the William L. Bryant Foundation, where books, music and art indigenous to the regions were gathered. They are organized by geographical location. Vendors sitting down in the street in Port-au-Prince. "7 UP" is sprayed on the block wall behind them. Haiti -- Caribbean region Haiti Haiti Haiti Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu CFM1972_01a Sheet 56:7 http://ufdc.ufl.edu/CA01200262/00001 | Partager |
Étude géologique et géophysique des marges continentales passives : exemple du Zaïre et de l'Angola Auteur(s) : Moulin, Maryline Éditeur(s) : Université de Bretagne Occidentale Résumé : The objective of the present work is to study the formation of the passive continental margins of the Central Segment of the South Atlantic, most particularly the Congo and Angola margins. We propose a combined approach, which integrates structural constraints based on geological cross-sections (based on seismic data) and global constraints based on plate kinematic reconstructions. The structural study is based on : i) MCS and refraction data collected during the ZaiAngo programme (a joint project conducted by Ifremer and Total) ; ii) proprietary, industrial seismic data (courtesy of Total) from the Angola margin and iii) on all available seismic lines from the Africa and Brazil conjugated margins, between Walvis Ridge and the Equatorial Fracture Zones. Based on theses data, three structural domains (continental, transitional and oceanic) have been defined, the major characteristics of which are : Crustal thinning occurs abruptly, mostly below the continental slope, over a lateral distance of less than 50 km. The top of the crust deepens as the Moho shallows. Only a few extensional structures are observed ; tilted blocks are very few (one or two, depending on the profile), found only on the upper part of the slope and sealed by a discordance prior to salt deposition. The transitional domain is characterized by the existence of a pre-salt basin lying over a thin crustal layer. No tilted blocks are observed in this domain and reflectors within the pre-salt sediment series are parallel to the base of the Aptian salt, over distances greater than 100 km, precluding the possibility of any significant deformation that would imply large horizontal motions. Two types of crust are observed in the transitional domain. "Type I" crust is found below the undeformed pre-salt sediment series located below the eastern part of the basin ; it is characterized by an upper layer of thickness greater than 5 km and a abnormal velocity layer (7.2 - 7.6 km/s), up to 6 km thick. "Type II" crust is less than 5 km thick and found below the salt compressive front that affects the western part of the basin. The salt cover is continuous (no erosion surface is observed), from the continental shelf to the western termination of the basin. Salt was not deposited in a confined environment (like in the Mediterranean), but in a shallow water, lagunal environment. This imposes the zero-level and constrains the paleo-bathymetry at the time of salt deposition, which dates the latest stage of margin formation. Understanding the formation of a margin cannot be approached without studying the homolog margin. Therefore, it is of major importance to reconstruct the closure of the ocean bordered by these homolog margins and take into account the constraints imposed by the kinematic reconstructions on the lateral motions of the lithospheric plates. In order to assess the relative position of the plates at the ocean closure (prior to crustal thinning), a global study was thus performed, integrating all geophysical and geological constraints, in the ocean and on land. The role of african intra-plate deformation and its limits and their consequences have been thoroughly studied. To juxtapose the margins of the central segment of the Southern Atlantic, it is all the margins bordering the Equatorial Atlantic that need to be adjuste precisely. The kinematic study of this last region shows that the reconstruction obtained are reliable, unambiguous with a quantifiable precision The best fitting poles (obtained using the PLACA software), show that it is impossible to close the margins beyond the superposition of the salt fronts, from the Angola and Brazil margins. The geological cross-sections based on seismic data from the homolog margins indicate that a 330 km wide basin with thin (< 12 km) crust was present at the time of the fit. This basin cannot result from horizontal movement related to pure stretching or simple shear, or any model implying conservative volume. This conclusion is consistent with the existence of presalt reflectors parallel to the salt layer wich extends to the platform: the formation of the pre-salt basin must be related to vertical motions. The scenario that we propose for the evolution of the Congo-Angola margin consist in four stages: the first phase corresponds to extensional deformation limited to the few tilted blocks observed on the upper part of the slope. During the second phase, the main crustal thinning occurs, vertical motions prevailes, resulting in the formation of the continental slope and in the subsidence of the basin. The third phase corresponds to the first stress striction: deformation is concentrated in a limited section of the basin, which corresponds to the salt compression front. A proto-oceanic crust is formed, probably composed of thinned continental crust intruded by mantle material. The second stress striction corresponds to the finale phase, resulting in oceanisation senso stricto. The evolution described shows that we can not apply conservative models for margin formation (such as McKenzie and Wernicke or any of their avatars). In order to explain this thinning, one should investigate non-conservative models (implying geochemical transformation, small scale convection, intrusion...) such as those proposed in marginal or continental basins with no horizontal movments. Ce travail de thèse aborde la formation des marges continentales passives dans le segment central de l'océan Atlantique Sud (plus particulièrement au Congo et en Angola), en intégrant une étude en coupe (étude structurale à partir des coupes sismiques) et une étude en plan (étude cinématique). L'étude structurale de la marge a été réalisée à partir des données de sismique réflexion et réfraction de la campagne Zaïango et d'une compilation de données sismiques réflexion existantes sur toutes les marges africaine et brésilienne entre les zones de fracture équatoriales et la ride de Walvis. L'interprétation de ces données a permis d'individualiser la structure de la marge en trois domaines : continental, transitionnel et océanique et de déterminer quelques points majeurs sur la structuration de la marge. L'amincissement est abrupt, localisé dans la zone de pente continentale et restreint à 50 km. La marge montre peu de structures distensives : seuls un ou deux blocs basculés sont observés en haut de pente continentale. Le domaine transitionnel est caractérisé par la géométrie particulière de la sédimentation anté-salifère, l'absence de blocs basculés et la faible épaisseur de croûte. La couche sédimentaire anté-salifère montre des réflecteurs plans jusqu'à la base du sel, continus sur 100 km, éliminant toutes possibilités de déformation du socle pendant et après son dépôt. La croûte du domaine transitionnel peut-être divisée en deux types : une croûte de type I sur laquelle se déposent les sédiments non déformés, et une croûte de type II sur laquelle se superposent les limites du « front compressif salifère » bien exprimé dans les séries postsalifères. Enfin le sel, que l'on observe depuis la plate-forme jusqu'au bassin profond, ne se dépose pas dans un bassin confiné (comme en Méditerranée) mais à un niveau proche de 0 m (ressemblant probablement à un dépôt de type lagunaire) et donne la paléo-bathymétrie au moment de son dépôt qui marque la fin de la période de formation de la marge. La compréhension de la genèse d'une marge ne peut être approchée sans son homologue. Cette simple constatation, cette évidence, montre toute l'importance que l'on doit apporter à la reconstruction cinématique initiale de l'océan qui borde ces marges homologues et aux contraintes imposées par les reconstructions cinématiques sur les mouvements horizontaux des plaques lithosphériques. Afin d'étudier la position des marges au moment de cette fermeture, c'est-à-dire avant amincissement, une étude globale intégrant l'ensemble des données disponibles, géophysiques et géologiques, océaniques et continentales, a été réalisée. Le rôle de la déformation intraplaque africaine, ses limites et leurs conséquences a, en particulier, été l'objet d'une attention poussée. Pour juxtaposer les marges du segment central, ce sont toutes les marges de l'océan Atlantique Equatorial qui doivent être ajustées précisément. L'étude cinématique réalisée de la région équatoriale montre que l'on obtient une reconstruction fiable et sans ambiguïté, avec une précision que l'on peut quantifier. Les pôles issus de cette étude (et calculés avec le Logiciel PLACA) indiquent qu'il est impossible d'obtenir une fermeture plus serrée que celle qui conduit à la superposition des fronts salifères brésilien et angolais : les coupes issues de la sismique réflexion des deux marges indiquent qu'il subsiste un bassin aminci, large de plus de 330 km et dont la croûte n'excède jamais 13 kilomètres d'épaisseur. La formation de ce bassin ne peut résulter de mouvements horizontaux, ce qui exclut un amincissement par étirement (pure stretching) ou par l'existence d'une faille de détachement (simple shear) ou par quelque modèle conservatif que ce soit. Cette constatation corrobore l'observation de la présence d'horizons anté-salifère parallèles, entre eux et au sel, couche salifère que l'on retrouve sur la plate-forme : la création de ce bassin anté-salifère ne peut être que liée à un mouvement vertical. Le schéma d'évolution que nous proposons à partir des données structurales et des contraintes cinématiques présente quatre étapes : le premier stade correspond à une phase de déformation distensive limitée aux quelques rares blocs basculés observés en haut de pente continentale. C'est durant la deuxième étape que se déroule la phase d'amincissement principal, les mouvements verticaux prévalent, aboutissant à la formation de la pente continentale et à la subsidence du bassin. La troisième phase correspond à une première striction des contraintes : la déformation se concentre sur une partie réduite du bassin, coïncidant avec le front salifère compressif. Une proto-croûte océanique se forme, probablement composée de croûte continentale amincie et intrudée de matériel mantellique. La seconde striction correspond à la phase finale de formation de la marge et aboutit à l'océanisation sensu stricto. L'étude cinématique et la description de l'évolution de la marge à partir des données sismiques montre donc que l'on ne peut envisager l'application d'un modèle de genèse des marges avec conservation de volume (type McKenzie ou Wernicke et leurs avatars) : pour expliquer l'amincissement du bassin, il faudrait probablement nous intéresser aux modèles non-conservatifs (impliquant transformation, convection à petite échelle, ...) qui sont déjà invoqués pour la formation des bassins marginaux ou continentaux, sans mouvements horizontaux. Droits : info:eu-repo/semantics/openAccess http://archimer.ifremer.fr/doc/2003/these-82.pdf http://archimer.ifremer.fr/doc/00000/82/ | Partager |
Wedding of the Year Auteur(s) : Guyana Chronicle Résumé : (Funding) Support for the development of the technical infrastructure and partner training provided by the United States Department of Education TICFIA program. Tales from the morgue… (A look at some of the stories that made the news ‘back-in-the-day’ with Clifford Stanley) Wedding of the year ANOTHER strange ‘wedding’ ….an all men affair… sent the down-town Charlestown area into a furore on Friday night as thousands blocked the traffic to get a glimpse of the ‘yellow tie’ men. The cutting of the three-tier cake was carried out without police intervention, unlike the last time when they were arrested and charged. The ‘bride’ and ‘groom’ kissed afterwards. Most of the notable characters, including ‘Anna’, ‘Miss Tiger Bay’, ‘Miss Ann’s Grove’, ‘Miss Bougala’, ‘Lady Cross Street’, ‘Countess of Berbice’, ‘Princess Desiree’, ‘Lady Ivlor’, ‘The Princess Royal of Essequibo’ and ‘Miss Hadfield Street’ were in attendance as bridesmaids. They displayed the latest fashions in headwear, shoes and dresses, causing spectators to gasp as they wended their way up to the reception hall on Russell Street. The ‘bride’ wore white chantilly lace over slipper satin. ‘Her’ headdress was a coronet of seed pearls. ‘She’ was bedecked with diamante necklace and earrings to match. The wedding portrait was taken at Lees Photo Studio of High Street, where mounted Police were called out to control the huge crowd which was gathered there. Later, two platoons of riot squad men were rushed to the wedding reception area to ease a traffic jam. (Guiana Graphic: Page One, July 12, 1959) Editor’s Note: Does anyone know whether any of these ‘girls’ are still alive? If so, do drop us a line. Droits : All rights reserved by the source institution. | Partager |