Results 31 to 40 of about 550,504 (295)

Integrated volatile metabolomic and transcriptomic analysis provides insights into the regulation of floral scents between two contrasting varieties of Lonicera japonica

open access: yesFrontiers in Plant Science, 2022
Lonicera japonica Thunb., belonging to the Caprifoliaceae family, is an important traditional Chinese medicinal plant. The L. japonica flower (LJF) is widely used in medicine, cosmetics, drinks, and food due to its medicinal and sweet-smelling properties.
Jianjun Li   +7 more
doaj   +1 more source

Good Volatility, Bad Volatility and Option Pricing [PDF]

open access: yesSSRN Electronic Journal, 2016
Advances in variance analysis permit the splitting of the total quadratic variation of a jump-diffusion process into upside and downside components. Recent studies establish that this decomposition enhances volatility predictions and highlight the upside/downside variance spread as a driver of the asymmetry in stock price distributions. To appraise the
Feunou, Bruno, Okou, Cédric
openaire   +2 more sources

Trichophyton species: use of volatile fingerprints for rapid identification and discrimination. [PDF]

open access: yes, 2006
Background: Fungal infection of the skin is a common clinical problem, and laboratory confirmation of the diagnosis is important to ensure appropriate treatment.
N. Magan   +11 more
core   +1 more source

Nitrogen deposition homogenizes moss-microbiomes and associated nitrogen fixation but with host-specific responses

open access: yesApplied and Environmental Microbiology
Moss microbiomes contribute significantly to terrestrial nitrogen (N) cycling through N fixation, especially in nutrient-poor environments. Yet, the relative roles of environment (abiotic factors) and host species (biotic factors) in shaping these ...
Amanda Maria Rydgren Thomsen   +2 more
doaj   +1 more source

THE FRACTIONAL VOLATILITY MODEL AND ROUGH VOLATILITY

open access: yesInternational Journal of Theoretical and Applied Finance, 2023
The question of the volatility roughness is interpreted in the framework of a data-reconstructed fractional volatility model, where volatility is driven by fractional noise. Some examples are worked out and, using the Malliavin calculus for fractional processes, an option pricing equation and its solution are obtained.
openaire   +2 more sources

Formation of reactive nitrogen species promoted by iron ions through the photochemistry of a neonicotinoid insecticide [PDF]

open access: yesAtmospheric Chemistry and Physics
Nitrous acid (HONO) and nitrogen oxides (NOx=NO+NO2) are important atmospheric pollutants and key intermediates in the global nitrogen cycle, but their sources and formation mechanisms are still poorly understood.
Z. Ran   +19 more
doaj   +1 more source

Olfactory responses of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae) to rose leaves: starvation and previous host plant experience

open access: yesPersian Journal of Acarology, 2014
The effect of host plant experience and different hunger periods on the olfactory response of Phytoseiulus persimilis was studied on rose leaves under laboratory conditions. When clean air was considered as the olfactometer fixed arm, P.
Bahador Maleknia   +3 more
doaj   +1 more source

Architecture and Dynamics of the Wounding-Induced Gene Regulatory Network During the Oolong Tea Manufacturing Process (Camellia sinensis)

open access: yesFrontiers in Plant Science, 2022
Understanding extensive transcriptional reprogramming events mediated by wounding during the oolong tea manufacturing process is essential for improving oolong tea quality.
Yucheng Zheng   +9 more
doaj   +1 more source

Stochastic Volatility of Volatility in Continuous Time

open access: yesSSRN Electronic Journal, 2009
This paper introduces the concept of stochastic volatility of volatility in continuous time and, hence, extends standard stochastic volatility (SV) models to allow for an additional source of randomness associated with greater variability in the data.
Barndorff-Nielsen, Ole, Veraart, Almut
openaire   +2 more sources

Volatility of Aggregate Volatility and Hedge Fund Returns [PDF]

open access: yesSSRN Electronic Journal, 2014
This paper investigates empirically whether uncertainty about equity market volatility can explain hedge fund performance both in the cross section and over time. We measure uncertainty via volatility of aggregate volatility (VOV) and construct an investable version through returns on lookback straddles on the VIX index.
Agarwal, V, Arisoy, Y E, Naik, N
openaire   +5 more sources

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