Results 91 to 100 of about 347,458 (339)

First-year nest growth in the leaf-cutting ants Atta bisphaerica and Atta sexdens rubropilosa

open access: yesSociobiology, 2014
The majority of ants construct nests underground to maintain environmental conditions favorable to the development of immature and adult individuals. But little is known about nest growth.
Sandra Cardoso   +3 more
doaj   +1 more source

Behavior‐ and Cell Type‐Specific Cortico‐Striatal Decoupling in a Parkinson's Disease‐Like Mouse Model

open access: yesAdvanced Science, EarlyView.
Utilizing dual‐site fiber photometry, this study examines cortico‐striatal coupling with cell type resolution, identifying behavior‐ and cell type‐specific cortico striatal decoupling and its dopamine‐dependent mechanism in a Parkinson's disease mouse model.
Xu‐Ran Yao   +4 more
wiley   +1 more source

Root System Reductions of Grafted ‘Valencia’ Orange Trees Are More Extensive Than Aboveground Reductions after Natural Infection with Candidatus Liberibacter Asiaticus

open access: yesHortScience
Huanglongbing (HLB), which is associated with the phloem-limited bacteria Candidatus Liberibacter asiaticus (CLas), is a devastating disease that affects citrus trees worldwide. Because of the pervasiveness of the bacteria and psyllid vector, the disease
Caroline Tardivo   +4 more
doaj   +1 more source

Les artisans africains : étude sociale et organisation du travail

open access: yesAntiquités Africaines, 2016
The epigraphic inventory of the Latin inscriptions mentioning craftsmen discovered in Algeria allows presenting a first social study of the African artifices.
Touatia Amraoui
doaj   +1 more source

Deuteration Induced Electron‐Phonon Coupling Modulation: Suppressing Energy Dissipation and Enhancing Carrier Separation in Organic Photocatalysis

open access: yesAdvanced Science, EarlyView.
During charge transport, photogenerated carriers exchange energy with lattice vibrations, influencing photocatalytic performance. The deuteration strategy enhances exciton dissociation and suppresses non‐radiative energy loss, significantly improving photocatalytic hydrogen evolution.
Hongli Sun   +13 more
wiley   +1 more source

MARPLE: A Proximity‐Triggered CRISPR‐Cas13 Platform for Ultrasensitive Antibody Detection

open access: yesAdvanced Science, EarlyView.
MARPLE is a modular CRISPR‐Cas13 immunoassay that uses antibody‐induced proximity to trigger a toehold‐exchange reaction, releasing an RNA activator for Cas13. This one‐pot, isothermal architecture enables ultrasensitive (femtomolar) and highly specific detection of diverse antibodies, including therapeutic, pathogen‐specific, and cancer‐associated ...
Elena Spezzani   +6 more
wiley   +1 more source

Design of multiple helix attractor including operation progress time for semi-autonomous area excavation

open access: yesNihon Kikai Gakkai ronbunshu
Unmanned excavation or remote excavation require an autonomous control design. In addition, a semi-autonomous system that can be operated by human intervention in emergency situations is necessary. We have designed an autonomous system using an nonlinear
Masafumi OKADA, Kazuaki SHIODA
doaj   +1 more source

Conceptual design of equipment to excavate and transport regolith from the lunar maria [PDF]

open access: yes
NASA hopes to have a manned lunar outpost completed by 2005. In order to establish the base, regolith must be excavated from the lunar surface. Regolith will be used as a source for life-supporting elements and as radiation shielding for the lunar ...
Detwiler, Mark   +2 more
core   +1 more source

Publishing Primary Data on the World Wide Web: Opencontext.org and an Open Future for the Past [PDF]

open access: yes, 2007
More scholars are exploring forms of digital dissemination, including open access (OA) systems where content is made available free of charge. These include peer -reviewed e -journals as well as traditional journals that have an online presence.
Eric C. Kansa
core  

Stress-strain state of the soil mass under the uniformly distributed load action adjacent to a vertical excavation

open access: diamond, 2021
Z. G. Ter-Martirosyan   +3 more
openalex   +1 more source

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