Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Helle Weber-Ravn"'
Autor:
Aagaard, Johs.
Publikováno v:
Aagaard, J 2002, ' Billig og nem terst kan afsløre sprøjtegift i planter : (about the work of Helle Weber Ravn) ' Grønspiren, bind 2 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pure_au_____::a63f4c282e7e2773cec7d3611bdc66db
https://pure.au.dk/portal/da/publications/billig-og-nem-terst-kan-afsloere-sproejtegift-i-planter(7d9f9ac0-7e9d-11dd-a5a8-000ea68e967b).html
https://pure.au.dk/portal/da/publications/billig-og-nem-terst-kan-afsloere-sproejtegift-i-planter(7d9f9ac0-7e9d-11dd-a5a8-000ea68e967b).html
Autor:
Ravn, H. W.
Publikováno v:
Ravn, H W 2002, ' Inexpensive, simple process for analysing plant stress developed by Danish scientist : (about the work of Helle Weber Ravn) ', Internationel Environment Reporter, vol. Vol. 25, no. No. 6 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pure_au_____::42439a2645d94145c18796cadbeb98eb
https://pure.au.dk/portal/da/publications/inexpensive-simple-process-for-analysing-plant-stress-developed-by-danish-scientist(aa17e1c0-7e9d-11dd-a5a8-000ea68e967b).html
https://pure.au.dk/portal/da/publications/inexpensive-simple-process-for-analysing-plant-stress-developed-by-danish-scientist(aa17e1c0-7e9d-11dd-a5a8-000ea68e967b).html
Autor:
Ravn, H. W.
Publikováno v:
Ravn, H W 2001, ' Ny dansk test kan aflsøre gift i mad : (about the work of Helle Weber Ravn) ', 2news, bind kl.22 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pure_au_____::c41fc4df80258e78f984e837efc94552
https://pure.au.dk/portal/da/publications/ny-dansk-test-kan-aflsoere-gift-i-mad(a9f05c90-7e9d-11dd-a5a8-000ea68e967b).html
https://pure.au.dk/portal/da/publications/ny-dansk-test-kan-aflsoere-gift-i-mad(a9f05c90-7e9d-11dd-a5a8-000ea68e967b).html
Autor:
Moha Afrokh, Saida Tahrouch, Khadija ELMehrach, Fadma Fahmi, Mohamed Ait Bihi, Helle Weber-Ravn, Abdelhakim Hatimi, Mohamed Tabyaoui
Publikováno v:
Chemical Data Collections. 43:100984
Publikováno v:
Ravn, H W, Mondolot, L, Kelly, MT & Lykke, A M 2015, ' Plantamajoside-A current review. ', Phytochemistry Letters, vol. 12, pp. 42-53 . https://doi.org/10.1016/j.phytol.2015.02.002
Plantamajoside is a bioactive caffeic acid derivative, a dihydroxyphenethyl glucoside in the group of polyphenolic compounds. It is one of the principal caffeic acid glycoside in the Plantago Digitalis, Hemiphragma, Lagotis, Picrorhiza, Rehmannia, Ve
Autor:
Helle Weber Ravn
Publikováno v:
Ravn, H W 2009, ' Two new methods for early detection of the effects of herbicides effects in plants using biomarkers ', Journal of Planar Chromatography-Modern TLC, vol. 22, no. 1, pp. 65-71 . https://doi.org/10.1556/JPC.22.2009.1.12
Summary Two simple and rapid methods for early detection of the effects of herbicides using two different groups of plant biomarkers are presented. The methods are based on High Performance Planar Chromatography (HPPC) and have been developed as fiel
Publikováno v:
Maraldo, K, Ravn, H W, Slotsbo, S & Holmstrup, M 2009, ' Responses to acute and chronic desiccation stress in Enchytraeus (Oligochaeta: Enchytraeidae) ', Journal of Comparative Physiology B: Biochemical, Systems, and Environmental Physiology, vol. 179, no. 2, pp. 113-123 . https://doi.org/10.1007/s00360-008-0305-5
Enchytraeids are small soil living oligochaete worms with high sensitivity to low soil moisture. The effects of acute and chronic desiccation on survival and reproduction were determined in Enchytraeus albidus and Enchytraeus crypticus. Further, effe
Publikováno v:
Aquatic Toxicology. 73:210-220
Microcosm and mesocosm studies evidence that pyrethroid insecticides may have a severe effect on zooplankton populations. The effect may cascade to phytoplankton communities and thus worsen the impact of eutrophication and algal blooms. In natural fr
Publikováno v:
Journal of Chromatography A. 1026:301-304
A new and simplified method for extraction of ergosterol (ergosta-5,7,22-trien-3beta-ol) from fungi in soil and litter was developed using pre-soaking extraction and paraffin oil for recovery. Recoveries of ergosterol were in the range of 94-100% dep
Publikováno v:
Functional Ecology. 15:647-653
Summary 1. Physiological and biochemical responses to desiccation were studied in two species of hygrophilic Collembola, Folsomia fimetaria L. and Protaphorura armata Tullberg. The temporal changes in water content, body fluid osmotic pressure, and a