Search results for "NPP"
showing 7 items of 7 documents
Carbon use efficiency variability from MODIS data
2017
[EN] Carbon use efficiency (CUE) describes how efficiently plants incorporate the carbon fixed during photosynthesis into biomass gain and can be calculated as the ratio between net primary production (NPP) and gross primary production (GPP). In this work, annual CUE has been obtained from annual GPP and NPP MODIS products for the peninsular Spain study area throughout eight years. CUE is spatially and temporally analyzed in terms of the vegetation type and annual precipitation and annual average air temperature. Results show that dense vegetation areas with moderate to high levels of precipitation present lower CUE values, whereas more arid areas present the highest CUE values. However, th…
Phylogenetic profiling and cellular analyses of ARL16 reveal roles in traffic of IFT140 and INPP5E
2021
ABSTRACTThe ARF family of regulatory GTPases is ancient, with 16 members predicted to have been present in the last eukaryotic common ancestor. Our phylogenetic profiling of paralogs in diverse species identified four family members whose presence correlates with that of a cilium/flagellum: ARL3, ARL6, ARL13, and ARL16. No prior evidence links ARL16 to cilia or other cell functions, despite its presence throughout eukaryotes. Deletion of ARL16 in MEFs results in decreased ciliogenesis yet increased ciliary length. We also found Arl16 KO in MEFs to alter ciliary protein content, including loss of ARL13B, ARL3, INPP5E, and the IFT-A core component IFT140. Instead, both INPP5E and IFT140 accum…
Avis de l'Anses relatif à une demande d'évaluation de 4 substances naturelles à usage biostimulant : le saule, la prêle des champs, l’huile essentiel…
2022
Les substances naturelles à usage biostimulant (SNUB) sont définies dans le cadre de la réglementation applicable au niveau national. Conformément au point 4° de l'article L. 255-5 du code rural et de la pêche maritime, les SNUB sont dispensées d'une autorisation de mise sur le marché. Toutefois, elles sont soumises à une procédure d’autorisation et d’évaluation, dont les modalités sont fixées par voieréglementaire et codifiées à l'article D. 255-30-11 du code rural et de la pêche maritime.Ainsi, une SNUB est autorisée, le cas échéant avec des prescriptions particulières d’utilisation, par son inscription sur une liste annexée à l'arrêté du 27 avril 20162 et publiée par arrêté du ministre c…
Docking and synthesis of pyrrolopyrimidodiazepinone derivatives (PPDs) and their precursors: New scaffolds for DNA-interacting agents
2007
New classes of pyrrolopyrimidodiazepinone derivatives (PPDs) and their precursors were studied in silico for their ability to form stable complex with DNA fragment. In the docking studies two binding modes can be envisaged: groove mode and intercalating mode. In the case of the best ligands the docking studies revealed a common binding mode with the chromophore intercalated between GC base pairs whereas the side chain lies close to the minor groove. Synthetic approach to the PPD ring systems is discussed.
ANP differentiates between primary Submandibular Gland Squamous Cell Carcinoma and Oral Squamous Cell Carcinoma: Preliminary data
2021
The natriuretic peptide system consists of three ligands, Atrial Natriuretic Peptide (ANP), Brain Natriuretic peptide (BNP) and C-type Natriuretic peptide (CNP), and three natriuretic peptide receptors (NPR’s), NPRA, NPRB and NPRC. We investigated the expression levels of NPPA (encoding ANP) and NPR1 (encoding NPRA, the main receptor for ANP) in primary benign (pleomorphic adenoma) and malignant (squamous cell carcinoma, SCC) submandibular salivary gland (SMG) tumors, as well as in primary oral squamous cell carcinoma (OSCC). We found that the NPPA and NPR1 expression levels were significantly different in SMG SCC versus OSCC, exhibiting a significant increase in NPPA and absence of NPR1 ex…
NPP VIIRS land surface temperature product validation using worldwide observation networks.
2013
International audience; Thermal infrared satellite observations of the Earth's surface are key components in estimating the surface skin temperature over global land areas. This work presents validation methodologies to estimate the quantitative uncertainty in Land Surface Temperature (LST) product derived from the Visible Infrared Imager Radiometer Suite (VIIRS) onboard Suomi National Polar-orbiting Partnership (NPP) using ground-based measurements currently made operationally at many field and weather stations around the world. Over heterogeneous surfaces in terms of surface types or biophysical properties (e.g., vegetation density, emissivity), the validation protocol accounts for land s…
Data supplement for "Land use intensification increasingly drives the spatiotemporal patterns of the global human appropriation of net primary produc…
2022
This data supplements the publication "Land use intensification increasingly drives the spatiotemporal patterns of the global human appropriation of net primary production in the last century" by Thomas Kastner, Sarah Matej, Matthew Forrest, Simone Gingrich, Helmut Haberl, Thomas Hickler, Fridolin Krausmann, Gitta Lasslop, Maria Niedertscheider, Christoph Plutzar, Florian Schwarzmüller, Jörg Steinkamp, Karl-Heinz Erb. For details, please refer to the included readme file and to the publication (https://doi.org/10.1111/gcb.15932) In this new Version 1.01, we changed the file structure to make the data more accessible, we added data on means across modulations as used in the paper, and we inc…