Results 91 to 100 of about 531,686 (291)

Captura de enxames de abelhas sem ferrão (Hymenoptera, Apidae, Meliponinae) sem destruição de árvores Capturing stingless bee nests (Hymenoptera, Apidae, Meliponinae) without destroying the trees

open access: yesActa Amazonica, 2005
No Brasil a criação racional de abelhas sem ferrão é denominada meliponicultura. As abelhas sem ferrão possuem diferentes comportamentos de nidificação, com ninhos internos (cavidades naturais ou não) e externos.
Alexandre Coletto-Silva
doaj   +1 more source

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

open access: yesAdvanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot   +7 more
wiley   +1 more source

Notas sobre la historia natural de las oropéndolas Psarocolius yuracares y P. Angustifrons Alfredi en la provincia Chapare, Cochabamba, Bolivia [PDF]

open access: yes, 2007
Se aportan datos de historia natural para dos oropéndolas o tojos (Psarocolius yuracares y P. angustifrons alfredi) poco estudiadas de la provincia Chapare, Departamento Cochabamba, Bolivia. P.
Fraga, Rosendo Manuel, Kreft, Stefan
core  

Insects Associated with Michigan Bumblebees (\u3ci\u3eBombus\u3c/i\u3e Spp.) [PDF]

open access: yes, 2017
(excerpt) Studies of insect associates of bumblebees are not new. For example, Tuck (1896, 1897) reported over 50 species of insects associated with nests of British bumblebees. Sladen (1912) discussed nest associates and parasites of European bumblebees,
Brown, Thomas M, Husband, Richard W
core   +2 more sources

Inflation Dynamics: A Structural Econometric Analysis

open access: yes, 1999
We develop and estimate a structural model of inflation that allows for a fraction of firms that use a backward looking rule to set prices. The model nests the purely forward looking New Keynesian Phillips curve as a particular case.
Jordi Galí, Jordi Galí, M. Gertler
semanticscholar   +1 more source

Shaping of Biohybrid Functional Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck   +3 more
wiley   +1 more source

Ant-Plant Relationships in a Re-Created Tallgrass Prairie [PDF]

open access: yes, 2018
Relationships between the distributions of nesting ants and flora were investigated in a re-created tallgrass prairie located in northeastern Illinois. One-third of 167 randomly selected 1m2 quadrats in the prairie contained ant nests.
Dave, Dhvani G   +3 more
core   +3 more sources

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu   +18 more
wiley   +1 more source

Assortative Mating By Diet In A Phenotypically Unimodal But Ecologically Variable Population Of Stickleback [PDF]

open access: yes, 2008
Speciation with gene flow may be driven by a combination of positive assortative mating and disruptive selection, particularly if selection and assortative mating act on the same trait, eliminating recombination between ecotype and mating type ...
Bolnick, Daniel I., Snowberg, Lisa K.
core   +1 more source

Precise Control of Drug Release in Machine Learning‐Designed Antibody‐Eluting Implants for Postoperative Scarring Inhibition in Glaucoma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a micro‐sized, biocompatible implant for postoperative sustained delivery of anti‐fibrotic antibodies in glaucoma surgery. Machine learning‐guided optimization of polymer composition, implant geometry, and porosity enabled precise control of drug release.
Mengqi Qin   +5 more
wiley   +1 more source

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