Results 71 to 80 of about 227,908 (260)

THE UNIT IN BOTANY [PDF]

open access: yesSchool Science and Mathematics, 1909
n ...
Caldwell, Otis W., Holt, W.-M. P.
openaire   +1 more source

CMOS‐Integrated Synaptic Photoreceptor Chip Inspired by Insect Visual Processing

open access: yesAdvanced Science, EarlyView.
CMOS‐integrated Si QDs/ReS2 synaptic photoreceptor array mimics the parallel processing and wavelength‐selective strategy of insect vision. By combining intrinsic ultraviolet‐violet sensitivity with synaptic plasticity, the chip enables frontend sensory redundancy reduction without external filters, offering a scalable pathway toward lowpower ...
Jian Chai   +25 more
wiley   +1 more source

Phytosociological Research and Meaningful Learning: Constructivist Approaches for Teaching Vegetation

open access: yesDiversity
Phytosociology reached its peak development during the 20th century, particularly after 1992 with the implementation of the EU Habitats Directive, which incorporated plant associations into habitat classifications.
Ana Cano-Ortiz   +2 more
doaj   +1 more source

A Virus‐Inducible E3–RLCK–MADS Module Coordinates Suppression of Plant Immunity and Fertility in Rice

open access: yesAdvanced Science, EarlyView.
ABSTRACT Viruses often hijack host developmental programs to promote infection, but the mechanistic links between reproductive regulation and antiviral immunity remain incompletely understood. Here, we identify a virus‐triggered hierarchical degradation cascade that links antiviral immunity and fertility regulation in rice. We show that the rice grassy
Yuansheng Wu   +13 more
wiley   +1 more source

Cylicodiscus gabunensis Harms : une espèce prisée dans le commerce international (synthèse bibliographique)

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2019
Cylicodiscus gabunensis Harms: a popular species in international trade. A review. Introduction. Due to the decline in tropical timber resources, silvicultural and ecological knowledge in these taxa need to be improved for management decision-making ...
Ndonda Makemba, R.   +4 more
doaj   +1 more source

BOTANY AND PHARMACOGNOSY. [PDF]

open access: yesJournal of the American Chemical Society, 1903
n ...
openaire   +1 more source

SERRATE Regulates Floral Meristem Activity by Antagonizing SHOOT MERISTEMLESS and Repressing Cytokinin Signaling

open access: yesAdvanced Science, EarlyView.
Floral meristem (FM) activity is crucial for the initiation of floral organs. In this study, SE represses IPT7 expression and cytokinin signaling via both the miR171c‐5p–KNAT2 and miR164c–CUC1/2–KNAT2 regulatory modules, thereby repressing FM activity. In contrast, STM induces both KNAT2 and IPT7 expression.
Wen Yang   +11 more
wiley   +1 more source

Les missionnaires et la botanique : l’exemple du père Urbain Faurie en Extrême-Orient

open access: yesMoussons, 2005
In the course of their evangelization travels, Western missionaries contributed to the advancement of botany by introducing to the wider world scores of hitherto unknown plant species.
Chantal Zheng, Zheng Shun-de
doaj   +1 more source

Trophic Diversity in Duckweed: Mixotrophy, More Than the Sum of its Extremes

open access: yesAdvanced Science, EarlyView.
In the context of rising DOC in aquatic environments, mixotrophic duckweed may impact carbon cycling by acting as either a carbon sink, as they absorb CO2 through photosynthesis, or a carbon source, as they release CO2 through respiration of absorbed DOC, which depends on DOC concentration, light availability, temperature, and other environmental ...
Zuoliang Sun   +5 more
wiley   +1 more source

A Multimodal Magnetically Driven Soft Robot With Integrated Actuation‐Sensing Based on Photothermal Reprogramming Technology

open access: yesAdvanced Science, EarlyView.
This work reports a thermally safe, photothermally reprogrammable magnetic soft robot with its reprogramming temperature tuned to ∼39.5°C for biocompatibility. It achieves multimodal locomotion (max speed of 1.8 BL/s) and integrates liquid‐metal capacitive sensing to monitor self‐motion and detect environmental changes in simulated gastric environments,
Liu Yang   +5 more
wiley   +1 more source

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