Results 11 to 20 of about 9,146,722 (196)

Extracting microplastic decay rates from field data

open access: yesScientific Reports, 2022
Being able to estimate and predict future microplastic distributions in the environment is one of the major challenges of the rapidly developing field of microplastic research.
T. Metz, M. Koch, P. Lenz
doaj   +1 more source

Exploring the impact of measurement error in police recorded crime rates through sensitivity analysis

open access: yesCrime Science, 2023
It is well known that police recorded crime data is susceptible to substantial measurement error. However, despite its limitations, police data is widely used in regression models exploring the causes and effects of crime, which can lead to different ...
Jose Pina-Sánchez   +3 more
doaj   +1 more source

Inference of microbial recombination rates from metagenomic data. [PDF]

open access: yesPLoS Genetics, 2009
Metagenomic sequencing projects from environments dominated by a small number of species produce genome-wide population samples. We present a two-site composite likelihood estimator of the scaled recombination rate, rho = 2N(e)c, that operates on ...
Philip L F Johnson, Montgomery Slatkin
doaj   +1 more source

Can almond trees directly dictate their irrigation needs?

open access: yesCalifornia Agriculture, 2003
Many of California's fruit and nut growers have already embraced more efficient irrigation systems (drip and microsprinkler) and adopted scientific irrigation-scheduling methods that closely match net applied water to evapotranspiration
David Goldhamer   +2 more
doaj   +1 more source

Analyzing the effect of bank performance on stock price returns: empirical evidence from European high-income countries [PDF]

open access: yesBanks and Bank Systems
Banking performance has developed rapidly accompanied by technological advances that can simplify banking services and transactions by adopting a priority scale aimed at identifying dynamically moving stock price returns and exploring banking quality and
Zefri Yenni   +3 more
doaj   +1 more source

Enthalpy of the N+ + H2 → NH+ + H Reaction—Experimental Study of the Reverse Process

open access: yesThe Astrophysical Journal, 2023
The formation of nitrogen hydrides in the interstellar medium is initiated by the nearly thermoneutral reaction of N ^+ + H _2 → NH ^+ + H. Here, we experimentally determine the enthalpy of this reaction using the principle of detailed balance from a ...
Štěpán Roučka   +8 more
doaj   +1 more source

Multijet rates in e+e- annihilation: perturbation theory versus LEP data [PDF]

open access: yes, 1998
We show that the next-to-leading order perturbative prediction, matched with the next-to-leading logarithmic approximation for predicting both two-, three- and four-jet rates using the Durham jet-clustering algorithm, in the 0.001 < ycut < 0.1 range ...
Barate   +23 more
core   +2 more sources

A Fuzzy Random Survival Forest for Predicting Lapses in Insurance Portfolios Containing Imprecise Data

open access: yesMathematics, 2022
We propose a fuzzy random survival forest (FRSF) to model lapse rates in a life insurance portfolio containing imprecise or incomplete data such as missing, outlier, or noisy values.
Jorge Luis Andrade, José Luis Valencia
doaj   +1 more source

An evaluation of Deccan Traps eruption rates using geochronologic data [PDF]

open access: yesGeochronology, 2021
Recent attempts to establish the eruptive history of the Deccan Traps large igneous province have used both U−Pb (Schoene et al., 2019) and 40Ar/39Ar (Sprain et al., 2019) geochronology.
B. Schoene   +3 more
doaj   +1 more source

Tariff Rates, Offshoring and Productivity: Evidence from German and Austrian Firm-Level Data [PDF]

open access: yes, 2010
This paper studies the impact of trade liberalization in terms of tarif cuts within the Eastern European enlargement on German and Austrian firm productivity.
Hansen, Thorsten
core   +4 more sources

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