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Comparison between Clément's First Formula and Other Statistical Distributions in A Real Irrigation NetworkNARA Subscribed
When irrigation pressurized systems are designed on demand, the flow determination in each line is crucial. To do so, Clément's First Formula is the most used methodology worldwide. Nevertheless, sometimes the use of this methodology can promote the oversizing of networks. This research verifies, by a proposed methodology, whether the normal flow distribution hypothesis corresponds to a real flow distribution in the network. I...
Direct long‐distance dispersal best explains the bipolar distribution of Carex arctogena ( Carex sect. Capituligerae , Cyperaceae)NARA Subscribed
Aim The bipolar disjunction, a biogeographical pattern defined by taxa with a distribution at very high latitudes in both hemispheres (> 55° N; > 52° S), is only known to occur in about 30 vascular plant species. Our aim was to use the bipolar species Carex arctogena to test the four classic hypotheses proposed to explain this exceptional disjunction: convergent evolution, vicariance, mountain‐hopping and direct long‐distance...
Major histocompatibility complex ( MHC ) loci encode glycoproteins that bind to foreign peptides and initiate immune responses through their interaction with T cells. MHC class II molecules are heterodimers consisting of α and β chains encoded by extremely variable genes; variation in exon 2 is responsible for the majority of observed polymorphisms, mostly concentrated in the codons specifying the peptide‐binding region. L act...
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