Results 11 to 20 of about 93,479,186 (84)

Il modello FRAD The FRAD Model

open access: yesJLIS.it, 2010
This article reviews FRAD's origins, structure and themes (Functional Requirements for Authority Data), a conceptual model developed by IFLA to analyze authority data through an entity-relationship perspective.The first section concerns the development ...
Antonio Speciale
doaj   +1 more source

Functional Requirements for Authority Data - A Conceptual Model

open access: yes, 2010
This book represents one portion of the extension and expansion of the Functional Requirements for Bibliographic Records. FRBR has been published as Nr 19 in the present Series.
IFLA Working Group on Functional Requirements and Numbering of Authority Records (FRANAR)
core   +7 more sources

Acoustic Streaming‐Induced Multimodal Locomotion of Bubble‐Based Microrobots

open access: yesAdvanced Science, Volume 10, Issue 35, December 15, 2023., 2023
Addressing microrobots' limited maneuverability; the acoustically‐powered micron‐scale robots with microorganism‐inspired motions are developed. These robots house two coupled microbubbles that create complex acoustic‐streaming yielding various flow patterns and allowing the microrobots to move swiftly.
Nima Mahkam   +5 more
wiley   +1 more source

Ultrasound Manipulation and Extrusion of Active Nanorods

open access: yesSmall, Volume 19, Issue 38, September 20, 2023., 2023
Synthetic self‐propelled nano and microparticles have a growing appeal for targeted drug delivery, collective functionality, and manipulation at the nanoscale. This study demonstrates how the synergistic effect of acoustic and flow‐induced focusing in microfluidic nozzles enables control of the positions and orientations of individual passive and self ...
Leonardo Dominguez Rubio   +3 more
wiley   +1 more source

Ataxia due to vitamin E deficiency: A case report and updated review

open access: yesClinical Case Reports, Volume 10, Issue 9, September 2022., 2022
Abstract Ataxia with vitamin E deficiency (AVED) is a rare cause of hereditary ataxia in developing countries with unknown prevalence. AVED is an autosomal‐recessive disorder, which is characterized by ataxia, areflexia, and proprioceptive and vibratory sensory loss.
Sangharsha Thapa   +6 more
wiley   +1 more source

Virus Detection: From State‐of‐the‐Art Laboratories to Smartphone‐Based Point‐of‐Care Testing

open access: yesAdvanced Science, Volume 9, Issue 17, June 13, 2022., 2022
This review summarizes the latest development of virus detection techniques, with the special focus on smartphone‐based viral diagnostics whose advances have enabled laboratory‐based molecular detections to be performed with plug‐and‐play stand‐alone devices.
Meng Xiao   +7 more
wiley   +1 more source

High‐Resolution Thermophysical Analysis of the OSIRIS‐REx Sample Site and Three Other Regions of Interest on Bennu

open access: yesJournal of Geophysical Research: Planets, Volume 127, Issue 6, June 2022., 2022
Abstract The OSIRIS‐REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) spacecraft sampled asteroid (101955) Bennu on 20 October 2020 and will return the collected regolith to Earth in 2023. Before sample collection, spectral observations of four regions of interest on Bennu's surface were acquired at high ...
B. Rozitis   +9 more
wiley   +1 more source

Two novel heteropolymer‐forming proteins maintain the multicellular shape of the cyanobacterium Anabaena sp. PCC 7120

open access: yesThe FEBS Journal, Volume 288, Issue 10, Page 3197-3216, May 2021., 2021
The Anabaena sp. PCC 7120 (Anabaena) coiled‐coil‐rich proteins ZicK and ZacK are strictly interdependent for the assembly of protein filaments in vitro and in vivo. Both proteins are involved in the manifestation of the linear multicellular Anabaena phenotype, with deletion of the coding genes resulting in a zigzagged cell filament phenotype ...
Benjamin L. Springstein   +8 more
wiley   +1 more source

The role of the cytoskeletal proteins MreB and FtsZ in multicellular cyanobacteria

open access: yesFEBS Open Bio, Volume 10, Issue 12, Page 2510-2531, December 2020., 2020
Among the myriad of cyanobacterial shapes and sizes, Stigonematales show the highest complexity as they present different cell shapes and sizes within a single cyanobacterial strain. By studying the main cytoskeletal components in these cyanobacteria, we aim to understand how cells undergo these changes. We provide the first insights on the role of the
Benjamin L. Springstein   +4 more
wiley   +1 more source

Functional Requirements for Authority Data - A Conceptual Model

open access: yes, 2013
This book represents one portion of the extension and expansion of the Functional Requirements for Bibliographic Records. FRBR has been published as Nr 19 in the present Series.
IFLA Working Group on Functional Requirements and Numbering of Authority Records (FRANAR)
core   +3 more sources

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