Results 81 to 90 of about 117,171 (306)

Structural Exploration of Zirconium Metal–Organic Frameworks Through Linker Desymmetrization and Modulator Compensation

open access: yesAdvanced Materials, EarlyView.
A linker‐desymmetrization‐modulator‐compensation (LDMC) strategy for constructing structurally diverse Zr‐MOFs is reported. This approach reduces linker symmetry to create defects in Zr‐clusters, which can be compensated for by modulator coordination. Using this approach, we synthesized PCN‐1005 and PCN‐1006, featuring unprecedented Zr‐clusters. In PCN‐
Rong‐Ran Liang   +8 more
wiley   +1 more source

EVALUATION OF FLORAL CHARACTERISTICS OF MELON HYBRIDS (Cucumis melo L.) IN POLLINATOR ATTRACTIVENESS

open access: yesRevista Brasileira de Fruticultura, 2016
Floral morphology and biology are important characteristics for plant-pollinator interactions and may influence the behavior of these agents. This study aimed to determine which floral attributes of different melon hybrids influence this interaction and,
LÚCIA HELENA PIEDADE KIILL   +4 more
doaj   +1 more source

Loss of YABBY2-Like Gene Expression May Underlie the Evolution of the Laminar Style in Canna and Contribute to Floral Morphological Diversity in the Zingiberales. [PDF]

open access: yes, 2015
The Zingiberales is an order of tropical monocots that exhibits diverse floral morphologies. The evolution of petaloid, laminar stamens, staminodes, and styles contributes to this diversity.
Almeida, Ana MR   +3 more
core   +2 more sources

Autonomous Hydrogel Actuators Programmed by Endogenous Biochemical Logic for Dual‐Stage Morphing and Drug Release

open access: yesAdvanced Materials, EarlyView.
A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu   +3 more
wiley   +1 more source

Sex allocation and reproductive success in the andromonoecious perennial, Solanum carolinense (Solanaceae). II. paternity and functional gender [PDF]

open access: yes, 2017
The work was supported by a National Science Foundation Doctoral Dissertation Improvement grant (DEB‐9411513), by the Society for Sigma Xi, and by a Hutcheson Memorial Forest grant.According to Bateman's principle, male fitness in entomophilous plant ...
Elle, E, Meagher, Thomas Robert
core   +1 more source

Topology‐Optimized Stretchable Piezoelectric Sensors With Tailored Liquid‐Metal Circuits for Anisotropic Stress‐Adaptive Motion Monitoring

open access: yesAdvanced Materials, EarlyView.
Schematic showing the leveraging of topology optimization, the printing of a tailored eutectic gallium‐indium liquid alloy electrode, and porous ceramic engineering to simultaneously enhance mechanical durability, stretchability, and sensing sensitivity to produce a highly deformable and stretchable sensor capable of monitoring complex and anisotropic ...
Hanmin Zeng   +10 more
wiley   +1 more source

Floral trait and genetic divergence in Aquilegia hebeica populations, a case of incipient speciation

open access: yesScientia Horticulturae
Species differentiation remains a central topic in evolutionary biology. Aquilegia hebeica Erst. (recently separated from A. viridiflora) exhibits significant intraspecific floral morphological variation within its distribution range, particularly in ...
Tengjiao Zhang   +4 more
doaj   +1 more source

Beetle pollination and flowering rhythm of Annona coriacea Mart. (Annonaceae) in Brazilian cerrado: Behavioral features of its principal pollinators.

open access: yesPLoS ONE, 2017
The conservation and sustainable management of Annona coriacea requires knowledge of its floral and reproductive biology, and of its main pollinators and their life cycles. In this work, we analyzed these aspects in detail. Floral biology was assessed by
Marilza Silva Costa   +3 more
doaj   +1 more source

Reproductive biology of "Helianthemum apennium" (L.) Mill. and "H. caput-felis" Boiss. (Cistaceae) from Mallorca (Balearic Island, Spain) [PDF]

open access: yes, 1997
El estudio de la biología reproductiva de poblaciones naturales de Helianthemum apenninum y H. caput-felis en Mallorca ha demostrado que son básicamente entomófilos, aunque también producen numerosos frutos por auto-polinización. Las flores de H.
Gil Sánchez, Luis   +2 more
core   +1 more source

A Petunia homeodomain-leucine zipper protein, PhHD-Zip, plays an important role in flower senescence. [PDF]

open access: yes, 2014
Flower senescence is initiated by developmental and environmental signals, and regulated by gene transcription. A homeodomain-leucine zipper transcription factor, PhHD-Zip, is up-regulated during petunia flower senescence. Virus-induced gene silencing of
Chang, Xiaoxiao   +5 more
core   +3 more sources

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