Results 21 to 30 of about 442,095 (256)

Discussion on the formulas used to calculate the dissolution rate by the rock tablet method

open access: yesCarsologica Sinica
The dissolution rate of carbonate rocks is an important parameter for investigating the karst carbon cycle and evaluating the carbon sink effect; as well as a key indicator for studying karst development and karst hydrogeological problems.
Guozhi PENG, Junbing PU
doaj   +1 more source

Remote sensing of young leaf photosynthetic capacity in tropical and subtropical evergreen broadleaved forests [PDF]

open access: yesEarth System Science Data
Determining the large-scale RuBisCO carboxylation maximum rate (Vc,max25) in relation to leaf age is essential for evaluating the photosynthetic capacity of canopy leaves in global forests.
X. Yang   +12 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Classifying Inundation in a Tropical Wetlands Complex with GNSS-R

open access: yesRemote Sensing, 2019
The use of global navigation satellite system reflectometry (GNSS-R) measurements for classification of inundated wetlands is presented. With the launch of NASA’s Cyclone Global Navigation Satellite System (CYGNSS) mission, space-borne GNSS-R ...
Nereida Rodriguez-Alvarez   +3 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Enhancing Multi-Flight Unmanned-Aerial-Vehicle-Based Detection of Wheat Canopy Chlorophyll Content Using Relative Radiometric Correction

open access: yesRemote Sensing
Unmanned aerial vehicle (UAV) remote sensing has emerged as a powerful tool for precision agriculture, offering high-resolution crop monitoring capabilities.
Jiale Jiang, Qianyi Zhang, Shuai Gao
doaj   +1 more source

Dataset on green macroprudential regulations and instruments: Objectives, implementation and geographical diffusion

open access: yesData in Brief, 2019
The dataset presented in this article contains the data gathered when surveying existing “green” macroprudential regulations and instruments. Official central banks’ documents and acts, as well as financial institutions reports, have been considered.
Paola D'Orazio, Lilit Popoyan
doaj   +1 more source

Carbon Cycle Uncertainty in REgional Carbon Cycle Assessment and Processes (RECCAP) [PDF]

open access: yesBiogeosciences, 2012
Characterisation of estimates of regional carbon budgets and processes is inherently a statistical task. In full form this means that almost all quantities used or produced are realizations or instances of probability distributions.
I. G. Enting, P. J. Rayner, P. Ciais
doaj   +1 more source

AscF in the mycobacterial CIII–CIV supercomplex lacks metal and nucleotide binding but links malate oxidation to respiration

open access: yesFEBS Letters, EarlyView.
The mycobacterial CIII‐CIV respiratory supercomplex is an obligate assembly, encompassing several subunits of unknown functions. We have characterized the intracellular subunit AscF, and show that it is unlikely to be a sensor for metals or nucleotides, but is required for growth on nonfermentable energy sources, and likely works as an adapter for ...
Eni Rile   +8 more
wiley   +1 more source

Spatial differentiation characteristics and controlling factors of the epikarst thickness in Southwest China

open access: yesGeoderma
The epikarst, a critical link between surface and subsurface in karst regions, plays a vital role in regulating groundwater cycle, sustaining biogeochemical cycles, and securing water resources.
Jinke Chen   +12 more
doaj   +1 more source

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