Results 31 to 40 of about 2,002 (144)

The L108I polymorphism in mouse prion protein drives spontaneous disease and enhances transmission of atypical and classical prion strains

open access: yesBrain Pathology, EarlyView.
A single amino acid change (L108I) combined with PrP overexpression drives spontaneous atypical prion formation in mice, enabling also efficient propagation of diverse prion strains. This model allows studying how spontaneous prion diseases arise and provides powerful tools for investigating strain emergence, transmission barriers, and mechanisms ...
Hasier Eraña   +20 more
wiley   +1 more source

Low cost, portable, 3D printable tissue precision slicer

open access: yesHardwareX
Slicing tissue samples into thin pieces is commonly used in histology analysis and more recently for organotypic culture when tissue samples are sliced alive.
Beatriz Martinez-Martin   +3 more
doaj   +1 more source

Anatomical and Phytochemical Studies on Benincasa hispida (Thunb.) Cogn. (Cucurbitaceae)

open access: yesNotulae Scientia Biologicae, 2019
The morphological and anatomical studies of Benincasa hispida (Thunb.) Cogn. from Nigeria was carried out with the view to reporting morphological and anatomical characteristics for the first time.
Chimezie EKEKE   +2 more
doaj   +1 more source

A Branched SNF1‐Related Protein Kinase 2 Signalling Cascade Controls ABA‐Induced Ethylene Production and Regulates Both Fruit Ripening and Reproductive Growth

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Control of fruit ripening, quality and yield is of major scientific, nutritional and commercial importance. The burst of ethylene (ET) production at the initiation of ripening is the most critical event controlling climacteric (CL) fruit ripening, yet little is known about how it is initiated.
Zhengrong Dai   +11 more
wiley   +1 more source

Interfacial Energy and Composition Controlled Self‐Stratification in Polyurethane Coatings

open access: yesMacromolecular Materials and Engineering, Volume 311, Issue 3, March 2026.
This study elucidates self‐stratification in polyurethane coatings driven by interfacial energies and composition‐dependent phase separation. Using XPS, SIMS, and Raman analyses, we reveal rapid formation of hydrophobic and hydrophilic layers and substrate‐dependent interfacial structures.
Gaurav Singhal   +11 more
wiley   +1 more source

Three-dimensional cardiac architecture determined by two-photon microtomy [PDF]

open access: yesJournal of Biomedical Optics, 2009
Cardiac architecture is inherently three-dimensional, yet most characterizations rely on two-dimensional histological slices or dissociated cells, which remove the native geometry of the heart. We previously developed a method for labeling intact heart sections without dissociation and imaging large volumes while preserving their three-dimensional ...
Huang, Hayden   +6 more
openaire   +3 more sources

Gonadulin and Insulin‐Like Growth Factor Involved in Rhipicephalus microplus Reproduction

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 3, Page 285-295, March 2026.
Insulin‐like growth factor (IGF2) in ovaries of Rhipicephalus microplus partially engorged females. Ovaries from females at different feeding stages were used to detect IGF2. ABSTRACT Gonadulin and insulin‐like growth factor (IGF) are neuropeptides synthesized by the central nervous system (CNS) of arthropods.
Jéssica Waldman   +8 more
wiley   +1 more source

Ocular Morphology and Clinical Ophthalmic Parameters of Nile Tilapia Oreochromis niloticus

open access: yesVeterinary Ophthalmology, Volume 29, Issue 2, March 2026.
ABSTRACT Objective To describe the ocular morphological characteristics and establish clinical and ophthalmic reference standards for Nile tilapia. Animals Studied Fresh carcasses were used for diaphanization, optical and electron microscopy, and computed tomography analyses.
Dandara Franco Ferreira da Silva   +12 more
wiley   +1 more source

Dismantling the genus Tarenna (Rubiaceae: Pavetteae) in Africa and Madagascar, with the description of three new genera

open access: yesTAXON, Volume 75, Issue 1, February 2026.
Abstract As presently circumscribed, the Paleotropical genus Tarenna, belonging to the tribe Pavetteae (Rubiaceae), comprises about 200 species and has its centres of diversity in tropical Asia and Africa. Previous molecular phylogenetic studies of the tribe revealed the polyphyly of Tarenna, suggesting that the genus needs to be recircumscribed ...
Petra De Block   +3 more
wiley   +1 more source

Dental Implant Osseointegration Following Mandibular Augmentation Using 3D Printed Hydroxyapatite Blocks. An Experimental In Vivo Study

open access: yesClinical Oral Implants Research, Volume 37, Issue 2, Page 101-113, February 2026.
ABSTRACT Objective To evaluate the use and osseointegration of dental implants in combination with 3D‐printed hydroxyapatite (3DHA) blocks featuring gyroid porosity for large mandibular bone augmentation. Methods Mandibular lateral bone augmentation with gyroid‐3DHA blocks was performed bilaterally on four female Göttingen minipigs. After 8 or 12 weeks
Simon Systermans   +5 more
wiley   +1 more source

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