Results 61 to 70 of about 194,548 (300)

Quadratic Hedging of American Options Under GARCH Models

Journal of Futures Markets, EarlyView.
ABSTRACT American options are widely traded in financial markets, yet there is a scarcity of literature on hedging in incomplete markets. In this paper, we derive optimal hedging ratios and option values using Local Risk Minimization (LRM) and Global Risk Minimization (GRM) hedging strategies through dynamic programming.
Junmei Ma, Chen Wang, Wei Xu
wiley   +1 more source

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

Journal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby, Jane Wheeler, William E. N. Austin, Heather Austin, Tom Hill, Sarah L. Bradley, Sally Derrett   +6 more
wiley   +1 more source

A twofold development and demise of pine stands in the Netherlands during the Allerød interstadial: two hypotheses to explain a link to climate change recorded in Greenland ice

Journal of Quaternary Science, EarlyView.
ABSTRACT The second half of the Allerød interstadial in the Netherlands is characterised by pine forest. Excavated trunks of 165 pine trees at Leusden‐Den Treek in the central Netherlands (LETR16) were dated by dendrochronology and radiocarbon. Two chronologically separated pine forest phases occurred during relatively warm periods as recorded in ...
Wim Z. Hoek, Jos Bazelmans, Otto Brinkkemper, Petra Doeve, Bas van Geel   +4 more
wiley   +1 more source

Risk assessment of white willow (Salix alba) in food

EFSA Journal, 2018
This Technical Report contains a description of the activities within the work programme of the EU‐FORA Fellowship on the risk assessment of white willow in food.
German Federal Institute for Risk Assessment (BfR), Unit of Food Toxicology, Germany, Ewa Matyjaszczyk, Regina Schumann   +3 more
doaj   +1 more source

Comparative Genomics of 9 Novel Paenibacillus Larvae Bacteriophages [PDF]

, 2016
American Foulbrood Disease, caused by the bacterium Paenibacillus larvae, is one of the most destructive diseases of the honeybee, Apis mellifera. Our group recently published the sequences of 9 new phages with the ability to infect and lyse P.
Amy, Penny S., LeBlanc, Lucy, Stamereilers, Casey, Tsourkas, Philippos K., Yost, Diane   +4 more
core   +2 more sources

Moose indifferent to canopy loss from forest disturbance by bark beetles

The Journal of Wildlife Management, EarlyView.
Moose showed strikingly similar patterns of habitat selection before and after widespread forest disturbance following an infestation of bark beetles. Our findings indicate that beetle‐kill does not appreciably alter habitat quality for moose and highlight the importance of riparian areas in sustaining moose as they contend with changing forests ...
Alexander B. May, Rebecca L. Levine, Lee Knox, Corey Class, Matthew J. Kauffman, Kevin L. Monteith   +5 more
wiley   +1 more source

Nutrition Status of Trees on Spoil Heaps After Coal Mining Can Be Inferred From Seasonal Dynamics of Foliar Nutrient Concentrations

Land Degradation &Development, EarlyView.
ABSTRACT A stable vegetation cover on given habitat conditions can be one of the possible requirements for post‐mining sites, as it can prevent erosion and dustiness of these anthropogenic surfaces and bring several practical future benefits, such as biomass production and microclimate improvement.
Tomáš Matys Grygar, Michaela Königová, Slavomír Adamec, Gabriela Bílková, Petr Vorm, Věra Hýlová   +5 more
wiley   +1 more source

Evaluation of fruit quality in a lemon cybrid with mandarin mitochondria [PDF]

, 2008
Nutritional and organoleptic qualities of fruit are currently very important objectives for plant breeders. Organic acids, sugars and carotenoids were studied by high liquid chromatography on the pulp of a citrus cybrid.
Bassene, Jean Baptiste, Berti, Liliane, Bouffin, Jean, Dhuique-Mayer, Claudie, Froelicher, Yann, Morillon, Raphaël, Ollitrault, Patrick   +6 more
core  

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

Land Degradation &Development, EarlyView.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik, Krystyna Kozioł, Marcin Frankowski, Marta Jakubiak, Kamil Nowiński, Mariusz Jędrysek, Danuta Szumińska, Żaneta Polkowska   +7 more
wiley   +1 more source

Mycorrhizas and biomass crops: opportunities for future sustainable development [PDF]

, 2009
Central to soil health and plant productivity in natural ecosystems are in situ soil microbial communities, of which mycorrhizal fungi are an integral component, regulating nutrient transfer between plants and the surrounding soil via extensive mycelial ...
Angela Hodge, Aylott, Azcon-Aguilar, Bardgett, Baum, Baum, Baum, Bending, Boehmel, Bostrom, Castillo, Chen, De Schriver, Deirdre C. Rooney, Dillen, Ekblad, Elizabeth Baggs, Fang, Field, Gadgil, Garbaye, Gary D. Bending, Gehring, Godbold, Gosling, Grogan, Hashimoto, Helgason, Helgason, Hodge, Hodge, Hoffmann, Hooker, Högberg, Högberg, Jaderlund, Jansa, Johnson, Jones, Jones, Jordan, Kahle, Karp, Ken Killham, Khasa, Klass, Klironomos, Kuzovkina, Lal, Lal, Landeweert, Leake, Lehmann, Leigh, Liebig, Magnani, Martin Weih, Matamala, Moreno-Espandola, Olsson, Paterson, Püttsepp, Quoreshi, Read, Read, Rillig, Searchinger, Simon, Sims, Smith, Staddon, Tilman, Toljander, Toljander, Treseder, Trowbridge, van der Heijden, van der Heijden, van der Heijden, Vestergard, Wardle, Warnock, Weih, Zhu   +83 more
core   +1 more source