Browsing Faculty of Natural and Agricultural Sciences by Title
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Girsanov’s theorem in vector lattices
(Springer, 2019)In this paper we formulate and proof Girsanov’s theorem in vector lattices. To reach this goal, we develop the theory of cross-variation processes, derive the cross-variation formula and the Kunita–Watanabe inequality. ... -
A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
(EGU, 2020)Aerosol particles are essential constituents of the Earth's atmosphere, impacting the earth radiation balance directly by scattering and absorbing solar radiation, and indirectly by acting as cloud condensation nuclei. In ... -
Global analysis of continental boundary layer new particle formation based on long-term measurements
(EGU, 2018)Atmospheric new particle formation (NPF) is an important phenomenon in terms of global particle number concentrations. Here we investigated the frequency of NPF, formation rates of 10 nm particles, and growth rates in ... -
A global analysis of the impacts of urbanization on bird and plant diversity reveals key anthropogenic drivers
(The Royal Society, 2014)Urbanization contributes to the loss of the world's biodiversity and the homogenization of its biota. However, comparative studies of urban biodiversity leading to robust generalities of the status and drivers of biodiversity ... -
A global assessment of precipitation chemistry and deposition of sulfur, nitrogen, sea salt, base cations, organic acids, acidity and pH, and phosphorus
(Elsevier, 2014)A global assessment of precipitation chemistry and deposition has been carried out under the direction of the World Meteorological Organization (WMO) Global Atmosphere Watch (GAW) Scientific Advisory Group for Precipitation ... -
A global comparison of surface soil characteristics across five cities: a test of the urban ecosystem convergence hypothesis
(Lippincott Williams & Wilkins, 2015)As part of the Global Urban Soil Ecology and Education Network and to test the urban ecosystem convergence hypothesis, we report on soil pH, organic carbon (OC), total nitrogen (TN), phosphorus (P), and potassium (K) ... -
Global distribution and current research of AmpC beta-lactamase genes in aquatic environments: a systematic review
(Elsevier, 2019)AmpC beta-lactamase genes are some of the most common antibiotic resistance genes and require special attention once they have become mobilised. The detection of these genes is well documented in clinical settings. However, ... -
A global forum on ultramafic ecosystems: from ultramafic ecology to rehabilitation of degraded environments
(Springer, 2018)The 9th International Conference on Serpentine Ecology (ICSE) was held in Tirana and Pogradec (Albania) from June 5 to 9, 2017. More than 100 delegates from 29 countries around the world gathered to present their research ... -
Global gradients for cosmic-ray protons in the heliosphere during the solar minimum of cycle 23/24
(Springer, 2016)Global gradients for cosmic-ray (CR) protons in the heliosphere are computed with a comprehensive modulation model for the recent prolonged solar minimum of Cycle 23/24. Fortunately, the PAMELA (Payload for Antimatter ... -
Global megatrends and their implications for environmental assessment practice
(Elsevier, 2016)This paper addresses the future of environmental assessment (EA) practice in light of a rapidly changing world. We apply a literature review-based methodology to firstly identify key global megatrends and then reflect upon ... -
The global modulation of cosmic rays during a quiet heliosphere: a modeling perspective
(Elsevier, 2017)A perspective is given of the solar modulation of galactic cosmic rays in the heliosphere during the extraordinary quiet solar minimum period from 2006 to 2009. This is done in the context of the total modulation of cosmic ... -
The global modulation of Galactic and Jovian electrons in the heliosphere
(Springer, 2018)A full three-dimensional, numerical model is used to study the modulation of Jovian and Galactic electrons from 1 MeV to 50 GeV, and from the Earth into the heliosheath. For this purpose the very local interstellar spectrum ... -
Global optimization of cyclic Kannan nonexpansive mappings in nonreflexive Banach spaces
(National Inquiry Services Centre (NISC), 2017)Consider a self-mapping T defined on a union of two subsets A and B of a Banach space such that T (A) ⊆ B and T (B) ⊆ A. In this work we survey the existence of an optimal approximate solution, known as a best proximity ... -
Global research on ultramafic (serpentine) ecosystems (8th International Conference on Serpentine Ecology in Sabah, Malaysia): a summary and synthesis
(CSIRO Publishing, 2015)Since 1991, researchers from approximately 45 nations have participated in eight International Conferences on Serpentine Ecology (ICSE). The Conferences are coordinated by the International Serpentine Ecology Society (ISES), ... -
Global scale variability of the mineral dust long-wave refractive index: a new dataset of in situ measurements for climate modeling and remote sensing
(Copernicus Publications on behalf of the European Geosciences Union, 2017)Modeling the interaction of dust with long-wave (LW) radiation is still a challenge because of the scarcity of information on the complex refractive index of dust from different source regions. In particular, little is ... -
Global stability and Hopf bifurcation of a delayed computer virus propagation model with saturation incidence rate and temporary immunity
(World Scientific Publishing, 2016)In this paper, a delayed computer virus propagation model with a saturation incidence rate and a time delay describing temporary immune period is proposed and its dynamical behaviors are studied. The threshold value ?0 is ... -
Global statement on air pollution and health: opportunities for Africa. (Editorial).
(Ubiquity Press, 2019)The human health and economic costs of air pollution in Africa are high and rising. Between 1990 and 2013, deaths from ambient particulate matter on the African continent rose by more than one third, and by 2013 was ... -
Global trends of green pesticide research from 1994 to 2019: a bibliometric analysis
(Journal of Toxicology, 2021)The fast-growing world population places food production under enormous pressure to ensure food security. One of the most common methods to increase food production is the use of pesticides, but the continuous use thereof ... -
A global view of the modulation of cosmic ray protons in the heliosphere for the solar minimum period up to 2009
(IOP Publishing, 2016)The heliosphere was in a state of ideal solar minimum conditions for at least three years up to the end of 2009. During this period the highest ever recorded cosmic ray spectra were observed at the Earth. Fortunately, the ...