Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Thomas Kopp"'
Publikováno v:
Toxins, Vol 12, Iss 5, p 320 (2020)
Pyrrolizidine alkaloids (PAs) are distributed in plant families of Asteraceae, Boraginaceae, and Fabaceae and serve in the chemical defense mechanism against herbivores. However, they became a matter of concern due to their toxicity associated with t
Externí odkaz:
https://doaj.org/article/4a581c1c39fb47c09ba4dcab20bc8f00
Autor:
Thomas Kopp, Ashok K. Mishra
Publikováno v:
Journal of Agricultural Economics. 73:518-540
This study provides empirical evidence for the relation between perishability in vertically coordinated supply chains and the market power exercised over smallholders in Nepal. Using survey data from small‐scale farms of tomatoes, ginger, high‐yi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e5aa09e2e990dd1a5294d3f2a19d232
https://doi.org/10.1111/1477-9552.12463
https://doi.org/10.1111/1477-9552.12463
Autor:
Thomas Kopp, Richard J. Sexton
Publikováno v:
American Journal of Agricultural Economics. 103:543-568
Buyer market power can significantly reduce farm prices and incomes, making curtailment of such power a key strategy to improve rural livelihoods in emerging economies. A “double marginalization problem” occurs when market power is exercised at m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f62a93518acee48812bcd61bc90c5db4
https://doi.org/10.1111/ajae.12149
https://doi.org/10.1111/ajae.12149
Publikováno v:
Planta Medica International Open. 7:e26-e33
Due to the high toxicity of pyrrolizidine alkaloids, in 2011, the German Federal Institute of Risk Assessment recommended that their daily intake limit should be no more than 0.007 µg/kg body weight. The risk of ingesting these substances in herbal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a06069f929eb0edb7afafc56515bdae
https://doi.org/10.1055/a-1121-4868
https://doi.org/10.1055/a-1121-4868
Publikováno v:
Molecules, Vol 14, Iss 6, Pp 2016-2031 (2009)
Pentacyclic triterpenes are secondary plant metabolites widespread in fruit peel, leaves and stem bark. In particular the lupane-, oleanane-, and ursane triterpenes display various pharmacological effects while being devoid of prominent toxicity. The
Externí odkaz:
https://doaj.org/article/95586dee56c04ec88f45539522438f28
Autor:
Markus Nabernegg, Thomas Kopp
Publikováno v:
Ecological Economics. 201:107589
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63732315c76a23d7827344fb0967a6a1
https://doi.org/10.1016/j.ecolecon.2022.107589
https://doi.org/10.1016/j.ecolecon.2022.107589
Autor:
Thomas Kopp
Suppliers of agricultural output incur switching costs (SCs) when choosing new buyers, allowing buyers to exercise oligopsonistic market power, as SCs help buyers to mark down prices for incumbent suppliers. This article conceptualizes the idea of SC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc19b46062aec9d0363400e9f512b451
https://hdl.handle.net/10419/264539
https://hdl.handle.net/10419/264539
Publikováno v:
Toxins
Toxins, Vol 12, Iss 320, p 320 (2020)
Toxins, Vol 12, Iss 320, p 320 (2020)
Pyrrolizidine alkaloids (PAs) are distributed in plant families of Asteraceae, Boraginaceae, and Fabaceae and serve in the chemical defense mechanism against herbivores. However, they became a matter of concern due to their toxicity associated with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6df3e0a747c392604e80a5021b72d012
Autor:
Thomas Kopp, Lauren Chenarides
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af0dc97a5859c5504d66cd4879e8bae7
https://doi.org/10.2139/ssrn.3710584
https://doi.org/10.2139/ssrn.3710584
Publikováno v:
British Food Journal. 119:1656-1671
Purpose In Indonesia, rubber is the most valuable export crop produced by small scale agriculture and plays a key role for inclusive economic development. This potential is likely to be not fully exploited. The observed concentration in the crumb rub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa504271ebdba7fd77180eab1f0ba3c3
https://doi.org/10.1108/bfj-11-2016-0572
https://doi.org/10.1108/bfj-11-2016-0572