Results 121 to 130 of about 546 (232)

Mesenchymal Stem Cell‐Derived Extracellular Vesicles Ameliorate NaIO3‐Induced Dry AMD by Delivering miR‐486‐3p to Inhibit Lipocalin‐2‐Mediated Ferroptosis

open access: yesMedComm, Volume 7, Issue 10, October 2026.
Our study reveals a novel mechanism by which MSC‐derived EVs alleviate NaIO3‐induced dry AMD‐like pathology. MSC‐EVs deliver miR‐486‐3p into retinal cells to directly inhibit the ferroptosis‐promoting target gene Lcn2. Concurrently, downregulated Lcn2 restores intracellular Gpx4 expression, thereby suppressing ferroptosis and rescuing retinal ...
Zheng Li   +6 more
wiley   +1 more source

The latitudinal migration of the sunspot groups

open access: yes
Abstract We analyse the monthly sunspot group (SG) data for Solar Cycles C8 - C23 and calculate the average latitude of the drift path for the northern and southern hemisphere of the Sun. We find that exponential function fits slightly better than the second-order polynomial to the average drift of the SGs. The drift velocities are are 0.30 and
openaire   +2 more sources

A systematic approach to standardizing the visual appearance of endometriotic lesions for artificial intelligence recognition

open access: yesActa Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 10, Page 1904-1917, October 2026.
A visual ontology of endometriotic lesions designed for artificial intelligence recognition: back to the past to shape the future. This study proposes a standardized visual ontology of endometriosis lesions observed during laparoscopy, based on a systematic search of the literature.
Antoine Netter   +16 more
wiley   +1 more source

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou   +6 more
wiley   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, Volume 309, Issue 9, Page 2315-2330, September 2026.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

SOLAR STORM TYPE CLASSIFICATION USING PROBABILISTIC NEURAL NETWORK COMPARED WITH THE SELF-ORGANIZING MAP

open access: yesJurnal Ilmiah Kursor: Menuju Solusi Teknologi Informasi, 2012
Salah satu tugas LAPAN adalah melakukan pengamatan dan peramalan gangguan badai matahari. Gangguan ini dapat mempengaruhi medan elektromagnet bumi sehingga mengacaukan peralatan elektronik dan navigasi yang ada di bumi.
Gregorius S. Budhi   +3 more
doaj  

Additional flight delays and magnetospheric-ionospheric disturbances during solar storms. [PDF]

open access: yesSci Rep, 2023
Wang Y   +17 more
europepmc   +1 more source

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