Results 231 to 240 of about 21,195 (259)

Novel diffractive optical element: binary photon sieve

Optical Engineering, 2011
In this paper, we developed a novel photon sieve consisting of a large number of precisely positioned holes distributed according to an underlying Fresnel zone plate (FZP) geometry, while the holes at transparent and opaque circular rings of the FZP have a π phase shift.
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An overview of real‐world data sources for oncology and considerations for research

Ca-A Cancer Journal for Clinicians, 2022
Lynne Penberthy, Donna R Rivera, Jennifer L Lund, Msph   +2 more
exaly  

Roles of transposable elements in the regulation of mammalian transcription

Nature Reviews Molecular Cell Biology, 2022
Julius A Judd, Cédric Feschotte, Joanna Wysocka   +2 more
exaly  

Regeneration and Differentiation of Sieve Tube Elements

1970
Publisher Summary This chapter discusses regeneration and differentiation of sieve tube elements. The pattern of first differentiation of sieve tubes in the young leaf is continuous and acropetal. The first sieve tube element in the leaf forms at a separate locus on the outer side of the procambial strand near the base of the leaf.
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Sieve Elements in Haustoria of Parasitic Angiosperms

1990
The necessity for conducting elements within haustoria of phanerogamic parasites is obvious, especially since holoparasitic angiosperms lack roots and assimilatory organs. Water as well as organic substances must be taken up, therefore, by specialized haustoria (Kuijt 1969; Kollmann and Dorr 1987). The faster the parasite grows, the more efficient must
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Sieve Elements; Extraxylary Mechanical Tissue

2023
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Sieve Element Structure in Relation to Function

1975
Translocation in the phloem of higher plants represents a complex physiological process with several partial reactions working together. Uptake and release of substances, energy transfer as well as storage of assimilates, are involved; or there may be a requirement in some cases for the mechanism of long-distance transport.
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Sieve Element of Impatiens sultanii

Annals of Botany, 1965
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Identification of non-coding silencer elements and their regulation of gene expression

Nature Reviews Molecular Cell Biology, 2022
Baoxu Pang, , Michael Paul Snyder
exaly  

Nanomaterial-based therapeutics for antibiotic-resistant bacterial infections

Nature Reviews Microbiology, 2020
Jessa Marie V Makabenta, Ahmed Nabawy, Cheng-Hsuan Li   +2 more
exaly