Resultados de búsqueda - Ghosts

Holograms and ghosts: new and old ideas for agricultural policies por Orden, David, Díaz-Bonilla, Eugenio

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Strategic foresight for agriculture: Past ghosts, present challenges, and future opportunities por Prager, Steven D., Wiebe, Keith D.

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Conclusion: old lesson and new directions in food policy por Ahmed, Raisuddin, Haggblade, Steven

“…Vivid memories of these famines linger in the minds of the elders who have steered economic policies in postwar periods and peacetime. Haunted by these ghosts from the past, policymakers have persistently erred on the side of intervention in food markets through direct public distribution of foodgrains and tight market regulation.…”
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A new precipitation technique provides evidence for the permeability of Casparian bands to ions in young roots of corn (Zea mays L.) and rice (Oryza sativa L.) por Ranathunge, Kosala, Steudle, Ernst, Lafitte, Renee

“…Using Chara cell wall preparations (‘ghosts’) as a model system, it was observed that, different from Cu2+, ferrocyanide ions remained inside wall‐tubes suggesting a substantially lower permeability of the latter which agreed with the finding of an asymmetric development of precipitates. …”
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Antropogena effekter på sötvattenlevande tiofotade kräftdjur por Lidell, Viktoria

“…Firstly, overfishing, which contributes to both population reduction and to the next major threat; pollution, ghost gear, which is directly harmful to animals and habitats and contributes to microplastics in both sea and freshwater; and thirdly, invasive species like the signal crayfish (Pacifastacus leniusculus), which has almost exterminated the Swedish native crayfish Astacus astacus. …”
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Neonate mortality in fallow deer (Dama dama) in relation to bed-site selection and habitat use por Svartholm, Ida

“…This persistence of anti-predator behavior under relaxed selection is referred to as the "ghost of predators past" hypothesis.…”
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