4,979 research outputs found
Rosendael, Groen Hemeltjen op Aerd. Kasteel, tuinen en bewoners sedert 1579 [Review of: J.C. Bierens de Haan (1995) -]
No full textEarly senescence of rice and Drechslera oryzae in the Wageningen Polder, Surinam
No full textRice is grown in monoculture in the Wageningen Polder, Surinam, South America, which comprises 10 000 ha of heavy clay soil. Fungal diseases caused appreciable losses of the rice crop in several years. Drechslera oryzae van Breda de Haan was found to be the major pathogen of rice. Its most conspicuous symptoms are leaf spots. Infection by D. oryzae was most severe during the reproductive phase of the rice plant. During that phase, the crop also showed a number of other symptoms such as discoloration of leaves, premature ripening with sterility, root decay, and matted roots. These symptoms together are designated as 'early senescence'. Brown leaf spotting caused by D. oryzae is just one of the group of symptoms constituting the syndrome. Severe infection by D. oryzae indicates poor rice-growing conditions.D. oryzae has the character of a perthophyte. The susceptibility of rice to infection by D. oryzae increases with the age of the plant. The fungus sporulates abundantly only on senescent leaves. Occurrence of epidemics is related to imbalance in development between the vegetative and the generative stages of the rice plant. This imbalance is induced by the incorporation of organic matter in the soil with tillage or the application of large amounts of nitrogen to the crop during the vegetative stage only.Early senescence of rice in the Wageningen Polder can be prevented by good tillage, balanced application of nitrogen, breeding and selection of cultivars specially adapted to marginal growing conditions.Control of D. oryzae with fungicides only takes away one of the causes of crop losses. Application of fungicides has not been economic.<p/
J.C. Steyn Collection index
No full textThis index describes the J. C. Steyn collection which includes background material for 3 biographies by J.C. (Jaap) Steyn namely N.P. van Wyk Louw, P.J. Cillié and MER (M.E. Rothman). Prof. J.C. Steyn (1939-) is an educationist, linguist and author. Correspondence ; clippings ; photographs ; book reviews ; articles ; speeches ; varia compiled in 23 pamphlet boxes
Product Innovation Knowledge Transfer for Developing Countries: Towards a systematic Transfer Approach
No full textThe transfer of knowledge on product innovation to small- and medium-sized enterprises and local knowledge institutions in developing countries is expected to be one of the key drivers for competiveness and economical growth, and a part of the solution to environmental and social challenge. In that respect, this PhD study focuses on how the process of the current knowledge transfer takes place and how it can be improved. A combination of literature review and empirical research has resulted into a conceptual framework to describe the complex and dynamic process of product innovation knowledge transfer to developing countries. In order to improve this process, a systematic approach has been developed and operationalized by a needs assessment tool and a design manual: The UNEP Design for Sustainability for Developing Economies (D4S-DE) Manual (www.d4s-de.org). Both tools have been tested in practice by practitioners and have been evaluated by an academic review board.Design EngineeringIndustrial Design Engineerin
Where do we draw lines: professional relationship boundaries and the child and youth care practitioner
No full textThe question of professional relationship boundaries is a poignant one, in light of the many boundary grey-zones that are created by the variety of young people’s needs, practice settings and professional relationship contexts within the field of child and youth care. In order to support practitioners’ development of critical thought and awareness of professional boundaries, this paper applies a professional relationship boundaries conceptual framework to child and youth care work, and the literature is consulted to explore the impacts of boundary violations, influences on individual’s boundaries, cues to indicate blurring boundaries, and key strategies to maintain balanced boundaries
Anthropometry of the Beaver, Sekani, and Carrier Indians:
No full textby J.C. Boileau GrantBulletin (National Museum of Canada) ; 81. Bulletin (National Museum of Canada). Anthropological series. ; 18
J.C. Painter letter to Benjamin Lundy
No full textLetter from J.E. Painter to (presumably) Benjamin Lundy, answering a request for information about the history and operations of the Underground Railroad. Letter includes details of a story of an ex-slave transported on the Underground Railroad through Ohio and stories of the plight of other fugitive slaves crossing the Ohio River.
Benjamin Lundy (1789-1839) was a prominent Quaker abolitionist best known for his development of abolitionist periodicals. His "Genius of Universal Emancipation" was first published in 1821 from his home in Mt. Pleasant, Ohio, and enjoyed a wide circulation across the antebellum United States. In the 1820s, the young William Lloyd Garrison came to work for The Genius. Benjamin Lundy traveled widely seeking subscriptions to The Genius, giving talks about the anti-slavery movement, and observing and documenting the conditions of enslaved people across the Americas. He was also involved in the establishment of freed slave colonies in Mexico
Constellations 1827
No full textIncludes 4 figures (2 on each sheet).Nördliche Halbkugel -- Südliche Halbkugel.Grayscale
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