154 research outputs found
New era for the coconut sector. What prospects for research?
For years and years, the main output of the coconut sector on the international market was copra, crude coconut oil (CNO) and its derivatives. However, since approximately 10 years, we see new products so called “non-traditional” products entering global exchanges. The market growth of these products, mainly coconut water extracted from mature or immature nuts, virgin coconut oil (VCO) cold pressed from the fresh kernel, coconut sugar taken from the sap flowing out of the flower, is exponential. They benefit from the healthy, simple and natural image that is conveyed by the coconut tree in the subconscious minds of the consumers. The craze for this new products create also biggest expectative from the consumers towards the coconut stakeholders. This is why this article will also suggest some tracks of reflection for the research and expert’s communities, who would like to support this expansion, thus contributing to the future of the millions of small coconut farmer
Screening of repellent, termiticidal and preventive activities on wood, of Azadirachta indica and Carapa procera (Meliaceae) seeds oils
To avoid environmental pollution and health problems caused by traditional wood preservatives or synthetic pesticides which are becoming more restricted to use, there is an increasing search of naturally occurring toxicants from plants. Extractives of phytobiomass having termiticidal activity can be used as low hazard termite control agents. Meliaceae species are well represented in Africa and cover a size range from magnificent forest trees to small shrubs. They have a wide range of uses in ethno medicine, prompting further investigations for biological activity due to the variety of isolated compounds. In the present article the termiticidal activities of Azadirachta indica and Carapa procera (Meliaceae) seeds oils (AISO and CPSO) are screening by no-choice test and standard test EN 118 (2005). Only AISO shows a promising termiticidal activity and both oils have shown a promising repellent activity. AISO and CPSO have the same preventive activity by standard test EN 118 (3: moderate attacks). Additional work will be undertaken to check whether some seeds extracts (non timber products from sustainable management of native forest) could show even higher termiticidal activity under more adverse conditions (polar solvents, cold temperature extraction under pressure) and could be alternative active natural products to synthetic compounds. (Résumé d'auteur
Current Filament Formation in Gold Compensated Silicon Pin Diodes
In semiconducting materials with current controlled negative differential conductivity an inhomogeneous current density distribution can arise leading to a well-defined spatial pattern in the form of current filaments. Detailed experiments are performed on silicon pin diodes showing a pronounced multistability in the current voltage characteristics. By using the voltage contrast and the electron beam induced voltage (EBIV) methods in a SEM, it is confirmed that each jump in the current is accompanied with the formation or disappearance of a well defined transverse electrical structure between the two contacts as a result of a current filament. This non-uniform state of the material is found to exhibit a clear solitary structure. The observed voltage oscillations are traced back to instabilities of this spatial structure
De la théorie à la pratique de la séquence Éviter-Réduire-Compenser (ERC) : éviter ou légitimer la perte de biodiversité ?
La séquence Éviter-Réduire-Compenser (ERC) est devenue un instrument réglementaire important visant à concilier aménagement et préservation de l’environnement. Le succès de son application dépend notamment de l’interprétation des textes normatifs nationaux par les acteurs du territoire. Dans cet article, nous nous intéressons à l’interprétation des définitions des étapes ERC inscrites dans la doctrine nationale. L’analyse de 42 études d’impact permet de montrer qu’il existe une forte hétérogénéité d’interprétation : 60 % des mesures proposées ne correspondent pas aux définitions normatives. Ces confusions pouvant réduire l’efficacité écologique de la séquence, nous suggérons des voies d’amélioration en faveur d’une plus grande cohésion entre les définitions et les mesures proposées.The mitigation hierarchy has become a major regulatory tool to balance urban development with environmental interest. Notably, the success of its implementation is based on the interpretation of such politics by practitioners. In this manuscript, we focus on the interpretation of French normative definitions of the three steps in the mitigation hierarchy : i.e. avoidance, reduction et offsetting. The analysis of 42 Environmental Impact Assessment (EIA) highlights important heterogeneity among interpretations : 60 % of the proposed measures in EIAs do not fit with the normative definitions. These confusions could have a negative impact on the ecological efficiency of the mitigation hierarchy. Therefore, we suggest several solutions to improve cohesion between the normative definitions et proposed measures in practice
Analysis of protein extracts from films and gloves produced with hevea and guayule latex
Sensory Communication
Contains table of contents for Section 2 and reports on five research projects.National Institutes of Health Contract 2 R01 DC00117National Institutes of Health Contract 1 R01 DC02032National Institutes of Health Contract 2 P01 DC00361National Institutes of Health Contract N01 DC22402National Institutes of Health Grant R01-DC001001National Institutes of Health Grant R01-DC00270National Institutes of Health Grant 5 R01 DC00126National Institutes of Health Grant R29-DC00625U.S. Navy - Office of Naval Research Grant N00014-88-K-0604U.S. Navy - Office of Naval Research Grant N00014-91-J-1454U.S. Navy - Office of Naval Research Grant N00014-92-J-1814U.S. Navy - Naval Air Warfare Center Training Systems Division Contract N61339-94-C-0087U.S. Navy - Naval Air Warfare Center Training System Division Contract N61339-93-C-0055U.S. Navy - Office of Naval Research Grant N00014-93-1-1198National Aeronautics and Space Administration/Ames Research Center Grant NCC 2-77
De la théorie à la pratique de la séquence Éviter-Réduire-Compenser (ERC) : éviter ou légitimer la perte de biodiversité ?
La séquence Éviter-Réduire-Compenser (ERC) est devenue un instrument réglementaire important visant à concilier aménagement et préservation de l’environnement. Le succès de son application dépend notamment de l’interprétation des textes normatifs nationaux par les acteurs du territoire. Dans cet article, nous nous intéressons à l’interprétation des définitions des étapes ERC inscrites dans la doctrine nationale. L’analyse de 42 études d’impact permet de montrer qu’il existe une forte hétérogénéité d’interprétation : 60 % des mesures proposées ne correspondent pas aux définitions normatives. Ces confusions pouvant réduire l’efficacité écologique de la séquence, nous suggérons des voies d’amélioration en faveur d’une plus grande cohésion entre les définitions et les mesures proposées.The mitigation hierarchy has become a major regulatory tool to balance urban development with environmental interest. Notably, the success of its implementation is based on the interpretation of such politics by practitioners. In this manuscript, we focus on the interpretation of French normative definitions of the three steps in the mitigation hierarchy : i.e. avoidance, reduction et offsetting. The analysis of 42 Environmental Impact Assessment (EIA) highlights important heterogeneity among interpretations : 60 % of the proposed measures in EIAs do not fit with the normative definitions. These confusions could have a negative impact on the ecological efficiency of the mitigation hierarchy. Therefore, we suggest several solutions to improve cohesion between the normative definitions et proposed measures in practice
Sensory Communication
Contains table of contents for Section 2, an introduction and reports on fifteen research projects.National Institutes of Health Grant RO1 DC00117National Institutes of Health Grant RO1 DC02032National Institutes of Health Contract P01-DC00361National Institutes of Health Contract N01-DC22402National Institutes of Health/National Institute on Deafness and Other Communication Disorders Grant 2 R01 DC00126National Institutes of Health Grant 2 R01 DC00270National Institutes of Health Contract N01 DC-5-2107National Institutes of Health Grant 2 R01 DC00100U.S. Navy - Office of Naval Research/Naval Air Warfare Center Contract N61339-94-C-0087U.S. Navy - Office of Naval Research/Naval Air Warfare Center Contract N61339-95-K-0014U.S. Navy - Office of Naval Research/Naval Air Warfare Center Grant N00014-93-1-1399U.S. Navy - Office of Naval Research/Naval Air Warfare Center Grant N00014-94-1-1079U.S. Navy - Office of Naval Research Subcontract 40167U.S. Navy - Office of Naval Research Grant N00014-92-J-1814National Institutes of Health Grant R01-NS33778U.S. Navy - Office of Naval Research Grant N00014-88-K-0604National Aeronautics and Space Administration Grant NCC 2-771U.S. Air Force - Office of Scientific Research Grant F49620-94-1-0236U.S. Air Force - Office of Scientific Research Agreement with Brandeis Universit
Sensory Communication
Contains table of contents for Section 2, an introduction and reports on twelve research projects.National Institutes of Health Grant 5 R01 DC00117National Institutes of Health Contract 2 P01 DC00361National Institutes of Health Grant 5 R01 DC00126National Institutes of Health Grant R01-DC00270U.S. Air Force - Office of Scientific Research Contract AFOSR-90-0200National Institutes of Health Grant R29-DC00625U.S. Navy - Office of Naval Research Grant N00014-88-K-0604U.S. Navy - Office of Naval Research Grant N00014-91-J-1454U.S. Navy - Office of Naval Research Grant N00014-92-J-1814U.S. Navy - Naval Training Systems Center Contract N61339-93-M-1213U.S. Navy - Naval Training Systems Center Contract N61339-93-C-0055U.S. Navy - Naval Training Systems Center Contract N61339-93-C-0083U.S. Navy - Office of Naval Research Grant N00014-92-J-4005U.S. Navy - Office of Naval Research Grant N00014-93-1-119
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