20 research outputs found
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Proximal remote sensing: an essential tool for bridging the gap between high‐resolution ecosystem monitoring and global ecology
A new proliferation of optical instruments that can be attached to towers over or within ecosystems, or 'proximal' remote sensing, enables a comprehensive characterization of terrestrial ecosystem structure, function, and fluxes of energy, water, and carbon. Proximal remote sensing can bridge the gap between individual plants, site-level eddy-covariance fluxes, and airborne and spaceborne remote sensing by providing continuous data at a high-spatiotemporal resolution. Here, we review recent advances in proximal remote sensing for improving our mechanistic understanding of plant and ecosystem processes, model development, and validation of current and upcoming satellite missions. We provide current best practices for data availability and metadata for proximal remote sensing: spectral reflectance, solar-induced fluorescence, thermal infrared radiation, microwave backscatter, and LiDAR. Our paper outlines the steps necessary for making these data streams more widespread, accessible, interoperable, and information-rich, enabling us to address key ecological questions unanswerable from space-based observations alone and, ultimately, to demonstrate the feasibility of these technologies to address critical questions in local and global ecology
A Mouse Model of Acrodermatitis Enteropathica: Loss of Intestine Zinc Transporter ZIP4 (Slc39a4) Disrupts the Stem Cell Niche and Intestine Integrity
Loss-of-function of the zinc transporter ZIP4 in the mouse intestine mimics the lethal human disease acrodermatitis enteropathica. This is a rare disease in humans that is not well understood. Our studies demonstrate the paramount importance of ZIP4 in the intestine in this disease and reveal that a root cause of lethality is disruption of the intestine stem cell niche and impaired function of the small intestine. This, in turn, leads to dramatic weight loss and death unless treated with exogenous zinc
Compatibility of physical education curricula with physical literacy across 40 European countries
Although the student-centred concept of physical literacy (PL) has been emphasized by UNESCO, knowledge about its adoption/implementation into PE remains scant. Therefore, the goal of this study was to evaluate and compare the compatibility of PE curricula with PL in Europe. We collaboratively gathered a panel of experts encompassing 40 European countries. In the first step, the experts were invited to freely specify the compatibility of country’s PE curricula with PL. The reports were subjected to six-step reflexive thematic analysis. In the second step, we theoretically derived, psychometrically explored, and descriptively analysed 15 curricular-didactical items, each containing a spectrum of statements with high versus no/insufficient PL compatibility. We synthesized both data sources following an explanatory sequential mixed-methods design. While few PE curricula explicitly adhered to PL in Europe, most documents exhibited content and aims marking elements of PL. However, we registered large differences in PL-compatibility between four European regions for the deep structure of the curricula (η2=.27, p=.01). While the quantitative survey suggested no differences in PL compatibility between anglophone versus non-anglophone countries, the qualitative material revealed conceptual and terminological challenges across Europe. The European countries have hesitantly followed the UNESCO call to align PE with the holistic PL concept
Compatibility of physical education curricula with physical literacy across 40 European countries
Although the student-centred concept of physical literacy (PL) has been emphasized by UNESCO, knowledge about its adoption/implementation into PE remains scant. Therefore, the goal of this study was to evaluate and compare the compatibility of PE curricula with PL in Europe. We collaboratively gathered a panel of experts encompassing 40 European countries. In the first step, the experts were invited to freely specify the compatibility of country’s PE curricula with PL. The reports were subjected to six-step reflexive thematic analysis. In the second step, we theoretically derived, psychometrically explored, and descriptively analysed 15 curricular-didactical items, each containing a spectrum of statements with high versus no/insufficient PL compatibility. We synthesized both data sources following an explanatory sequential mixed-methods design. While few PE curricula explicitly adhered to PL in Europe, most documents exhibited content and aims marking elements of PL. However, we registered large differences in PL-compatibility between four European regions for the deep structure of the curricula (η2=.27, p=.01). While the quantitative survey suggested no differences in PL compatibility between anglophone versus non-anglophone countries, the qualitative material revealed conceptual and terminological challenges across Europe. The European countries have hesitantly followed the UNESCO call to align PE with the holistic PL concept
Can mass movement for decentralized water harvesting and recharge help cope with groundwater depletion?: lessons from western India
In World Water Forum 3: Water, Food and Environment. Groundwater Governance in Asia: The Challenge of Taming a Colossal Anarchy, Kyoto, Japan, 17 March 2003. Vallabh Vidyanagar, Gujarat, India. International Water Management Institute (IWMI)
Transcriptomic signature of drought response in pearl millet (Pennisetum glaucum (L.) and development of web-genomic resources
Abstract Pearl millet, (Pennisetum glaucum L.), an efficient (C4) crop of arid/semi-arid regions is known for hardiness. Crop is valuable for bio-fortification combating malnutrition and diabetes, higher caloric value and wider climatic resilience. Limited studies are done in pot-based experiments for drought response at gene-expression level, but field-based experiment mimicking drought by withdrawal of irrigation is still warranted. We report de novo assembly-based transcriptomic signature of drought response induced by irrigation withdrawal in pearl millet. We found 19983 differentially expressed genes, 7595 transcription factors, gene regulatory network having 45 hub genes controlling drought response. We report 34652 putative markers (4192 simple sequence repeats, 12111 SNPs and 6249 InDels). Study reveals role of purine and tryptophan metabolism in ABA accumulation mediating abiotic response in which MAPK acts as major intracellular signal sensing drought. Results were validated by qPCR of 13 randomly selected genes. We report the first web-based genomic resource (http://webtom.cabgrid.res.in/pmdtdb/) which can be used for candidate genes-based SNP discovery programs and trait-based association studies. Looking at climatic change, nutritional and pharmaceutical importance of this crop, present investigation has immense value in understanding drought response in field condition. This is important in germplasm management and improvement in endeavour of pearl millet productivity
Not Available
Not AvailablePearl millet, (Pennisetum glaucum L.), an efcient (C4) crop of arid/semi-arid regions is known for
hardiness. Crop is valuable for bio-fortifcation combating malnutrition and diabetes, higher caloric
value and wider climatic resilience. Limited studies are done in pot-based experiments for drought
response at gene-expression level, but feld-based experiment mimicking drought by withdrawal of
irrigation is still warranted. We report de novo assembly-based transcriptomic signature of drought
response induced by irrigation withdrawal in pearl millet. We found 19983 diferentially expressed
genes, 7595 transcription factors, gene regulatory network having 45 hub genes controlling drought
response. We report 34652 putative markers (4192 simple sequence repeats, 12111 SNPs and 6249
InDels). Study reveals role of purine and tryptophan metabolism in ABA accumulation mediating abiotic
response in which MAPK acts as major intracellular signal sensing drought. Results were validated by
qPCR of 13 randomly selected genes. We report the frst web-based genomic resource (http://webtom.
cabgrid.res.in/pmdtdb/) which can be used for candidate genes-based SNP discovery programs and
trait-based association studies. Looking at climatic change, nutritional and pharmaceutical importance
of this crop, present investigation has immense value in understanding drought response in feld
condition. This is important in germplasm management and improvement in endeavour of pearl millet
productivity.Not Availabl
