Results 21 to 30 of about 708,735 (268)

Trade-offs between soil splash and water infiltration modulate erosion dynamics following rubber-to-balsa plantation conversion

open access: yesAgricultural Water Management
Accelerated soil erosion driven by improper land-use changes severely threatens the sustainability of global plantation ecosystems. Although forest conversion is known to intensify splash erosion—the critical initial phase of water erosion—it remains ...
Xia Yuan   +7 more
doaj   +1 more source

Drivers of toxic element accumulation in terrestrial ecosystems across elevational gradients

open access: yesEcological Indicators
Terrestrial ecosystems, account for approximately 31% of the global land area and play a significant role in the biogeochemical cycling of toxic elements.
Baba Imoro Musah, Jie Yang, Guorui Xu
doaj   +1 more source

Kin recognition in plants-an ecological perspective: an overview of plant kin recognition under different resources, consequences and future challenges

open access: yesJournal of Plant Interactions
Kin recognition in plants is a debated topic, with mixed evidence on whether plants can distinguish kin from non-kin and adjust their behavior accordingly.
Jan Sher   +4 more
doaj   +1 more source

Comparative analysis of global stability of the typical structural systems of multi-storey steel buildings [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2012
The paper presents global stability comparative analysis of two distinctive structural systems for one 25 - storey high steel building. These are the system with rigid and the system with hinged joint connections between beams and columns in the steel
Cilić Aleksandra   +2 more
doaj   +1 more source

Global stability for a tuberculosis model

open access: yesMathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Junli Liu, Tailei Zhang
openaire   +3 more sources

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz   +12 more
wiley   +1 more source

Floral symmetry is associated with contrasting hydraulic strategies and trait coordination in angiosperm flowers

open access: yesPlant Diversity
Floral symmetry is widely recognized as a key driver of angiosperm diversification, yet how actinomorphic and zygomorphic flowers differ in their hydraulic architecture remains poorly understood.
Feng-Jiao Liu   +4 more
doaj   +1 more source

Global stability of a delayed and diffusive virus model with nonlinear infection function

open access: yesJournal of Biological Dynamics, 2021
This paper studies a delayed viral infection model with diffusion and a general incidence rate. A discrete-time model was derived by applying nonstandard finite difference scheme. The positivity and boundedness of solutions are presented.
Yan Geng, Jinhu Xu
doaj   +1 more source

An SEIR model with infectious latent and a periodic vaccination strategy

open access: yesMathematical Modelling and Analysis, 2021
An SEIR epidemic model with a nonconstant vaccination strategy is studied. This SEIR model has two disease transmission rates β1 and β2 which imitate the fact that, for some infectious diseases, a latent person can pass the disease into a susceptible one.
Islam A. Moneim
doaj   +1 more source

CHOICES FOR GLOBAL SOCIAL STABILITY [PDF]

open access: yesIFAC Proceedings Volumes, 2008
Abstract Scientists and societal leaders increasingly agree that human activity is irretrievably changing the environment in which human life and other life forms co-exist. Action to reduce human impact on the environment is an imperative prerequisite to achieving social stability.
Kile, Frederick, Dimirovski, Georgi M.
openaire   +1 more source

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