Results 61 to 70 of about 124,586 (329)

Review of the Genus \u3ci\u3eMacdunnoa\u3c/i\u3e (Ephemeroptera: Heptageniidae) with Description of a New Species From Florida [PDF]

open access: yes, 2017
The imago, nymph, and egg of Macdunnaa brunnea n. sp. are described from the south- eastern U.S. Heptagenia persimpiex is transferred to Macdunnoa and additional diagonostic characters are given for this species and for Macdunnoa nipawinia.
Flowers, R. W
core   +2 more sources

4D Bioprinted Self‐Folding Scaffolds Enhance Cartilage Formation in the Engineering of Trachea

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
A bilayer self‐folding scaffold, triggerable by humidity, is fabricated via 4D bioprinting for trachea engineering. An analytical model is derived to predict its radius of curvature, enabling its scalability. Cartilage progenitor cells seeded on the scaffold perceive scaffold final curvature and react to it, by enhancing the upregulation of pro ...
Irene Chiesa   +4 more
wiley   +1 more source

Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters [PDF]

open access: yes, 2002
The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial ...
Branson, K   +20 more
core   +4 more sources

Bryophytes from the Republic of Equatorial Guinea (West Central Africa) : 6., Cololejeunea iradieri sp. nov., Cololejeunea magna stat. nov. and their relations to similar species [PDF]

open access: yes, 1999
The group of African Cololejeunea species with a heart-shaped perianth and elongate marginal leaf cells has been studied. Cololejeunea iradieri is described as new from Equatorial Guinea (West Central Africa), while Cololejeunea harrisii Pócs var.
Heras Pérez, Patxi   +1 more
core  

Bioprinting of Microtissues Within Mechanically Tunable Support Baths to Engineer Anisotropic Musculoskeletal Tissues

open access: yesAdvanced Science, EarlyView.
This study presents a novel 4D bioprinting platform for engineering biomimetic musculoskeletal grafts. By tuning the mechanical properties of support baths, we enhance tissue fusion, collagen alignment, and cell differentiation. Using this strategy, we successfully fabricate scaled‐up, anisotropic tissues such as meniscus, articular cartilage, and ...
Francesca D. Spagnuolo   +2 more
wiley   +1 more source

FSTL1 Orchestrates Metabolic‐Epigenetic Crosstalk: Glycolysis‐Dependent H3K18 Lactylation Drives Cartilage Fibrosis in Osteoarthritis

open access: yesAdvanced Science, EarlyView.
FSTL1 promotes glycolysis during chondrocyte fibrosis by triggering the HIF‐1 signaling pathway, which causes lactate to accumulate. The buildup of lactate leads to changes in histone lysine lactylation, which in turn enhances the expression of genes associated with fibrosis.
Feng Lu   +12 more
wiley   +1 more source

A new species of Anastrepha from Amazonia : with redescriptions of A. caudata Stone and A. hendeliana Lima (Diptera: Tephritidae) [PDF]

open access: yes, 2003
Three species of Anastrepha from upper Amazonia are described or redescribed and illustrated. They are considered closely related and are placed in the A. caudata species group. Anastrepha caudata Stone 1942 is redescribed based on the holotype, the only
Caraballo, Josefina, Norrbom, Allen L.
core  

CircTspan3 Promotes Cartilage Development Through ANNEXIN A2‐Mediated Ferroptosis and Apoptosis Inhibition and Exosome‐Mediated Paracrine Signaling

open access: yesAdvanced Science, EarlyView.
This study reveals that XBP1s drives production of circTspan3, a circular RNA that strengthens cartilage by boosting anabolic activity and limiting cell death. Phosphorylated ANXA2 directs circTspan3 into exosomes, enabling paracrine repair. Exosomal circTspan3 expands growth‐plate cartilage and promotes in vivo regeneration, highlighting its promise ...
Yiming Pan   +16 more
wiley   +1 more source

Relationship of red splenic arteriolar hyaline with rapid death: a clinicopathological study of 82 autopsy cases

open access: yesDiagnostic Pathology, 2012
Background Little is known about the relationship between splenic arteriolar hyaline and cause of death. The purpose of this retrospective study was to evaluate the clinicopathological significance of splenic arteriolar hyaline in autopsy cases and ...
Kotani Hirokazu   +6 more
doaj   +1 more source

Histological Findings Upon Patients Undergoing Revision Surgery after AMIC of the Talus

open access: yesFoot & Ankle Orthopaedics, 2022
Category: Ankle Arthritis Introduction/Purpose: Failure after AMIC (autologous matrix-induced chondroplasty) of the talus is relatively rare and ranges between 2-6%.
Fabian Krause MD   +2 more
doaj   +1 more source

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