Results 101 to 110 of about 699,122 (253)

Tamper‐Responsive Physical Unclonable Functions via Graphene‐Interlayered Block Copolymer Random Structures

open access: yesAdvanced Materials, EarlyView.
Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo   +7 more
wiley   +1 more source

Senescence-related gene expression profiles of rosette leaves of Arabidopsis thaliana: Leaf age versus plant age

open access: yes, 2004
Senescence is a form of programmed cell death (PCD) which leads to the death of whole organs, e.g., leaves or flowers, and eventually to the death of entire plants.
Jobst, J.   +3 more
core   +1 more source

Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots

open access: yesAdvanced Materials, EarlyView.
Hybrid epoxy‐acrylate printing enables seamless fabrication of soft–rigid robotic systems with covalently integrated interfaces and functionally graded mechanics. Grayscale exposure expands the accessible material space, enabling spatially programmed actuation through patterned stiffness while revealing the mechanics and durability of continuously ...
David C. Bershadsky   +3 more
wiley   +1 more source

Senescence vs. sustenance: Evolutionary-demographic models of aging [PDF]

open access: yes
Humans, and many other species, suffer senescence: mortality increases and fertility declines with adult age. Some species, however, enjoy sustenance: mortality and fertility remain constant.
James W. Vaupel, Annette Baudisch
core   +2 more sources

Effects of air temperature, photoperiod, and soil moisture on leaf senescence and dormancy depth in four subtropical tree species

open access: yesForestry Research
Climate warming has substantially delayed the autumn phenology of trees over recent decades. As the primary focus of previous studies on autumn phenology has been on temperate tree species, the environmental regulation of leaf senescence in subtropical ...
Fucheng Wang   +7 more
doaj   +1 more source

Ethylene and leaf senescence

open access: yes, 2006
Leaf senescence is currently considered the last stage of leaf development and is a genetically programmed process, highly regulated with recycling of reserves from the leaves to other storage organs (seeds, trunk, branches).
A. Francini   +3 more
core   +1 more source

1T‐to‐2H Phase Evolution During Epitaxial Growth of Transition Metal Dichalcogenides

open access: yesAdvanced Materials, EarlyView.
During MOCVD growth of MoS2 and WSe2, a transient metallic 1T phase emerges in early, edge‐rich, chalcogen‐deficient domains and declines as the films ultimately coalesce as 2H material. Together, experiments and ReaxFF simulations link domain size, edge stoichiometry, and vacancies to this evolution.
Andrew R. Graves   +8 more
wiley   +1 more source

Rice ONAC016 promotes leaf senescence through abscisic acid signaling pathway involving OsNAP

open access: yesCrop Journal
Senescence-induced NAC (senNAC) TFs play a crucial role in senescence during the final stage of leaf development. In this study, we identified a rice senNAC, ONAC016, which functions as a positive regulator of leaf senescence.
Eunji Gi   +4 more
doaj   +1 more source

3D‐Printed Corneal Substitutes: Materials, Fabrication, and Preclinical Progress

open access: yesAdvanced Materials Technologies, EarlyView.
Successful clinical translation of 3D‐printed corneal substitutes relies on the interplay between the bioink properties, cellular component, and the fabrication process. These factors influence the critical properties of the construct, including optical transparency, mechanical stability, suture retention, that ultimately govern long‐term stromal ...
Shadi Moshayedi   +4 more
wiley   +1 more source

Senescence-associated changes in mineral nutrients in rice leaves and their relationship with ROS homeostasis as affected by nitrogen deficiency

open access: yesCrop Journal
Nitrogen (N) deficiency critically impairs leaf photosynthetic capacity and triggers premature senescence. However, the physiological metabolism underlying N deficiency-induced leaf senescence and its relationship with the varying mineral nutrients and ...
Muhammad Asad Ullah Asad   +10 more
doaj   +1 more source

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