Results 41 to 50 of about 442,091 (288)

Advances in Plant Regeneration: Shake, Rattle and Roll

open access: yesPlants, 2020
Some plant cells are able to rebuild new organs after tissue damage or in response to definite stress treatments and/or exogenous hormone applications. Whole plants can develop through de novo organogenesis or somatic embryogenesis.
Sergio Ibáñez   +3 more
doaj   +1 more source

Seasonal variation in diurnal atmospheric grass pollen concentration profiles [PDF]

open access: yesBiogeosciences, 2014
In this study, the diurnal atmospheric grass pollen concentration profile within the Danish city of Aarhus was shown to change in a systematic manner as the pollen season progressed.
R. G. Peel   +7 more
doaj   +1 more source

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

open access: yes, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa   +2 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Land-Use and Height of Pollen Sampling Affect Pollen Exposure in Munich, Germany

open access: yesAtmosphere, 2020
Airborne pollen concentrations vary depending on the location of the pollen trap with respect to the pollen sources. Two Hirst-type pollen traps were analyzed within the city of Munich (Germany): one trap was located 2 m above ground level (AGL) and the ...
Jesús Rojo   +8 more
doaj   +1 more source

Replicability of data collected for empirical estimation of relative pollen productivity [PDF]

open access: yes, 2016
The effects of repeated survey and fieldwork timing on data derived from a recently proposed standard field methodology for empirical estimation of relative pollen productivity (RPP) have been tested.
Bunting, M. Jane   +2 more
core   +1 more source

Interactions Between Active Matters and Endogenous Fields

open access: yesAdvanced Materials, EarlyView.
This review synthesizes endogenous field information and computational methods in contexts such as cancer, wounds, and biofilms. It organizes NAMs and AAMs by sensing, transmitting, and executing functions, compares their limitations, and from these contrasts proposes design strategies for next‐generation AAMs, offering perspectives to foster ...
Jinwei Lin   +6 more
wiley   +1 more source

Getting to the heart of cardiovascular evolution in humans

open access: yeseLife, 2019
Differences in the response of cardiomyocytes to oxygen deprivation in humans and chimpanzees may explain why humans are more prone to certain heart diseases.
Alex Pollen, Bryan J Pavlovic
doaj   +1 more source

Light‐Activated Micromotors in Air Propelled by Thermal Convection

open access: yesAdvanced Materials, EarlyView.
Near‐infrared‐driven micromotors in air can overcome gravity and generate convective motion by a light‐induced thermal mechanism driven by a temperature gradient in the air caused by the interaction of the gold nanoparticles present on the surface of ZnO and NIR irradiation.
Pedro Mena‐Giraldo   +6 more
wiley   +1 more source

Toward in vitro fertilization in Brachiaria spp. [PDF]

open access: yes, 2010
Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R.   +5 more
core   +2 more sources

Home - About - Disclaimer - Privacy