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Wyszukujesz frazę "D'Haese, D." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Good governance and social responsibility in the South African wine industry
Autorzy:
Sefoko, N.
van Rooyen, J.
D'Haese, L.
D'Haese, M.
Powiązania:
https://bibliotekanauki.pl/articles/572209.pdf
Data publikacji:
2010
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
social responsibility
South Africa
wine industry
good governance
agriculture
Opis:
The paper reviews the institutional structure or strategic framework, the Wine Industry Transformation Charter and Scorecard, adopted on 31 July 2007, through which good governance and social responsibility programmes are fostered, implemented and monitored in the South African wine industry. In other words, the paper outlines how the wine industry seeks to foster social change through integrated socioeconomic support structures, as based on the Wine Industry Plan (WIP). The wine charter and scorecard components are a representation of good governance in the industry, whereas the social capital development approach is the focus of social responsibility programmes in the wine industry. The seven components of the wine transformation charter are: (i) ownership, (ii) management/control, (iii) employment equity, (iv) skills development, (v) enterprise development, (vi) preferential procurement, and (vii) rural development, land reform and poverty alleviation. Five areas that constitute the programmes of social responsibility are: (i) the responsible alcohol use, (ii) rural development and poverty alleviation, (iii) security of tenure, (iv) land, and (v) sectoral determination. The implications for the agri-food sector and conclusions are provided.
Źródło:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego; 2010, 10(25), 3
2081-6960
Pojawia się w:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ozone effects on trees, where uptake and detoxification meet
Autorzy:
De, Temmerman L
Vandermeiren, K.
D'Haese, D.
Bortier, K.
Asard, H.
Ceulemans, R.
Powiązania:
https://bibliotekanauki.pl/articles/41371.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
air pollutant
ozone effect
oxidative defence
detoxification
ozone
critical level
tree
ozone concentration
effective ozone flux
Opis:
Ozone is the most important air pollutant and its concentration in ambient air is still rising. Ozone concentrations measured at reference height (50 m is EMEP ozone modelling height), do not reflect the real concentration at the top of the vegetative canopy and do not provide sufficient information about the ozone fluxentering the leaves. Modelling stomatal conductance is leading to estimations of cumulative ozone uptake and enables much better to evaluate the impact of ozone on trees. The negative impact of ozone exposure has a measurable effect on physiological processes such as stomatal conductance, photosynthesis and respiration. Disturbance of the basic physiological processes is leading to growth and wood production losses. There have been several attempts to establish critical levels (CL) for ozone effects on forest trees. Average concentrations and cumulative exposure indices are satisfactory to some extent, but do not fully describe the potential impact of ozone exposure. Much more promising is an evaluation based on the effective ozone flux, which is a function of the absorbed ozone flux and the defensive response. Ozone uptake takes place primarily through the stomata and reactions of ozone with hydrocarbons released by the plant cells and transformations of dissolved ozone in the apoplastic fluid create many reactive oxygen species of which free radicals are able to initiate membrane lipid peroxidation and destruction of cell membranes. The defence of a plant against absorbed ozone starts in the apoplastic fluid. Ascorbate is believed to be a very important radical scavenger avoiding detrimental effects of reactive oxygen species to the membranes. Other important antioxidants are phenolics. The defensive response can be linked to the abundance of ascorbate or the ability of the plants to regenerate (reduce) ascorbate from monodehydroascorbate and dehydroascorbate. The reduction of dehydroascorbate takes place in the symplast where ascorbate can be transported back through the plasma membrane into the apoplast. Ozone exposure also causes oxidative stress of the plant cell interior by the formation of reactive oxygen species. Plants can cope with those toxic substances in the symplast by using antioxidants such as ascorbate, -tocopherol, glutathione and carotenoids and enzymes such as superoxide dismutases, catalases and several peroxidases. The complexity of the apoplastic and symplastic antioxidative capacity with different turnover rates and transport of antioxidants makes it difficult to determine the total antioxidative power.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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