Results 61 to 70 of about 187,503 (276)

Unraveling the Morphological and Functional Maturation Mechanisms Underlying Human Neural Development Using iPSCs‐Derived Neuronal Model

open access: yesAdvanced Science, EarlyView.
Using human induced pluripotent stem cells (hiPSCs)‐derived neuronal model, Tian and colleagues reveal that voltage‐gated calcium channels Cav1.2 and Cav1.3, and their mediated calcium ion influx, are essential for early morphogenesis of human neuronal development, while ECEL1 underlies human neuronal functional developmental maturation through CALM3 ...
Yue Tian   +5 more
wiley   +1 more source

Can Climate Change Trigger Massive Diversity Cascades in Terrestrial Ecosystems?

open access: yesDiversity, 2013
We summarize research on diversity and trophic interactions under a trophic cascades model that is reframed and expanded from the traditional biomass- or abundance- based indirect effects and discuss the response of such “diversity cascades” to climate ...
Deborah K. Letourneau, Lee A. Dyer
doaj   +1 more source

An explanatory model for food-web structure and evolution [PDF]

open access: yes, 2005
Food webs are networks describing who is eating whom in an ecological community. By now it is clear that many aspects of food-web structure are reproducible across diverse habitats, yet little is known about the driving force behind this structure ...
A.G. Rossberg   +36 more
core   +4 more sources

OPTRACE: Optical Imaging–Guided Transplantation and Tracking of Cells in the Mouse Brain

open access: yesAdvanced Science, EarlyView.
OPTRACE establishes an optical, two‐step platform for intracerebral cell therapy. Transparent glass pipettes enable real‐time, image‐guided delivery, while multiplex genetic labeling with two‐photon and bioluminescence readouts supports longitudinal single‐cell tracking and host–graft dynamics.
Jinghui Wang   +10 more
wiley   +1 more source

Trophic levels of fish species of commercial importance in the Colombian Caribbean

open access: yesRevista de Biología Tropical, 2011
Ecological studies on commercial important fish species are of great value to support resource management issues. This study calculated trophic levels of those Colombian Caribbean fish species whose diet has been locally described.
Camilo B García   +1 more
doaj  

Bioaccumulation modelling and sensitivity analysis for discovering key players in contaminated food webs: the case study of PCBs in the Adriatic Sea [PDF]

open access: yes, 2015
Modelling bioaccumulation processes at the food web level is the main step to analyse the effects of pollutants at the global ecosystem level. A crucial question is understanding which species play a key role in the trophic transfer of contaminants to ...
Marianna Taffi a, D   +3 more
core   +1 more source

Label‐Free Molecular Characterization of Protein Aggregates in Differentiated Astrocytes

open access: yesAdvanced Science, EarlyView.
Mid‐infrared photothermal microscopy enables label‐free structural, molecular, and functional imaging of protein aggregates in astrocyte cells. The processes of astrocytes differentiated on a nanomaterial interface are characterized by α‐helical signatures combined with enhanced interfacial thermal resistance properties, while the cell soma of non ...
Panagis D. Samolis   +9 more
wiley   +1 more source

Diversity and biogeographical patterns in the diet of the culpeo in South America

open access: yesEcology and Evolution
Here we describe the dietary patterns of the culpeo or Andean fox (Lycalopex culpaeus) on a biogeographical scale. We also analyse the influence of exotic lagomorphs on its diet and explore differences between culpeo subspecies.
Jorge Lozano   +5 more
doaj   +1 more source

Unified "micro"- and "macro-" evolution of eco-systems: Self-organization of a dynamic network

open access: yes, 2003
Very recently we have developed a dynamic network model for eco-systems that achieved ``unification'' of ``micro'' and ``macro''-evolution. We now propose an extension of our model so as to stabilize the eco-system and describe {\it speciation} in a more
Amaral   +30 more
core   +1 more source

Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments [PDF]

open access: yes, 2019
Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality.
De Caceres M.   +22 more
core   +1 more source

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