Results 31 to 40 of about 343,445 (359)

Impact of urbanization on the spatial and temporal evolution of the water system pattern: A study of the Wuhan metropolitan area in China

open access: yesEcological Indicators, 2023
With the rapid economic development and continuous urbanization, the status of river ecosystems is undergoing profound changes. Therefore, quantitative assessment of the impact of urbanization on the water system is highly desirable.
Yi Xiao   +4 more
doaj  

Spatial and Temporal Variations of Compound Droughts and Hot Extremes in China

open access: yesAtmosphere, 2019
Droughts and hot extremes may lead to tremendous impacts on the ecosystem and different sectors of the society. A variety of studies have been conducted on the variability of the individual drought or hot extreme in China.
Xinying Wu   +4 more
doaj   +1 more source

RNA interference in marine and freshwater sponges [PDF]

open access: yes, 2011
Background: The marine sponge Tethya wilhelma and the freshwater sponge Ephydatia muelleri are emerging model organisms to study evolution, gene regulation, development, and physiology in non-bilaterian animal systems. Thus far, functional methods (i.e.,
Cieniewicz, Brandon   +12 more
core   +1 more source

Genomic blueprints of sponge-prokaryote symbiosis are shared by low abundant and cultivatable Alphaproteobacteria [PDF]

open access: yes, 2019
Marine sponges are early-branching, filter-feeding metazoans that usually host complex microbiomes comprised of several, currently uncultivatable symbiotic lineages.
Cox, Cymon   +6 more
core   +4 more sources

Molecular phylogenetic evaluation of classification and scenarios of character evolution in calcareous sponges (Porifera, Class Calcarea). [PDF]

open access: yes, 2012
Calcareous sponges (Phylum Porifera, Class Calcarea) are known to be taxonomically difficult. Previous molecular studies have revealed many discrepancies between classically recognized taxa and the observed relationships at the order, family and genus ...
Voigt, Oliver   +2 more
core   +9 more sources

Kinetic pathways of multi-phase surfactant systems

open access: yes, 2000
The relaxation following a temperature quench of two-phase (lamellar and sponge phase) and three-phase (lamellar, sponge and micellar phase) samples, has been studied in an SDS/octanol/brine system.
C. Blanc   +23 more
core   +1 more source

Biodiversity of Spongosorites coralliophaga (Stephens, 1915) on coral rubble at two contrasting cold-water coral reef settings [PDF]

open access: yes, 2015
The authors would like to thank Bill Richardson (Master), the crew of the RRS James Cook, Will Handley and the Holland-I ROV team. We also thank all the specialists in taxonomy that provided important help with identification of species: Professor Paul ...
Henry, Lea-Anne   +3 more
core   +1 more source

Hydrodynamics of sponge pumps and evolution of the sponge body plan

open access: yeseLife, 2020
Sponges are suspension feeders that filter vast amounts of water. Pumping is carried out by flagellated chambers that are connected to an inhalant and exhalant canal system. In ‘leucon’ sponges with relatively high-pressure resistance due to a complex and narrow canal system, pumping and filtering are only possible owing to the presence of a gasket ...
Sally P. Leys   +6 more
openaire   +5 more sources

Effects of Nitrogen Application at Different Levels by a Sprinkler Fertigation System on Crop Growth and Nitrogen-Use Efficiency of Winter Wheat in the North China Plain

open access: yesPlants
Nitrogen (N) is an essential macronutrient for crop growth; therefore, N deficit can greatly limit crop growth and production. In the North China Plain (NCP), winter wheat (Triticum aestivum L.) is one of the main food crops, and its yield has increased ...
Keke Wang, Haijun Liu, Zhuangzhuang Gao
doaj   +1 more source

Amphipoda in sponges [PDF]

open access: yesAnnals and Magazine of Natural History, 1878
n ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy