Results 31 to 40 of about 7,170,439 (241)

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Epigraphical Datasets of the Temple of Atargatis from Dura-Europos for the WikiProject International (Digital) Dura-Europos Archive

open access: yesJournal of Open Humanities Data
The paper concerns the datasets of epigraphic material from the Temple of Atargatis in Dura-Europos in Syria. It covers the 43 inscriptions in Greek and two in Middle Aramaic from two locations: the proper temple and the hall of female cultic association.
Aleksandra Kubiak-Schneider
doaj   +1 more source

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Realism as a Representational Strategy in Depictions of Horses in Ancient Greek and Egyptian Art: How Purpose Influences Appearance

open access: yesArts, 2023
When modern (Western) viewers look at ancient art, the first feature of the image that is often assessed is its relationship to ‘reality’. How ‘real’ the image looks is inextricably linked to its evaluation and therefore the viewer’s estimation of its ...
Lonneke Delpeut, Carolyn Willekes
doaj   +1 more source

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

open access: yesAdvanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco   +4 more
wiley   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

open access: yesAdvanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang   +20 more
wiley   +1 more source

Tourism (re)configured: Geographical thinking in tourism studies

open access: yesPrace Geograficzne
This review article delves into the ways in which geographical thought can enhance tourism studies, particularly at a time when tourism is expanding its impact and transforming into diverse spatial ...
Chiara Rabbiosi
doaj   +1 more source

World Development Indicators 2005

open access: yes, 2005
Five years ago the Millennium Declaration recorded the commitment of the members of the United Nations to eliminate poverty and to build a secure and peaceful world conducive to human development.
World Bank
core   +1 more source

Modulation of miR‐23b Wnt/β‐catenin Axis Strengthens Endothelial Barrier Properties

open access: yesAdvanced Science, EarlyView.
Early blood‐brain barrier (BBB) disruption contributes to stroke and CNS disease pathology. miR‐23b was identified as a regulator of BBB integrity in brain endothelial cells. Inhibition of miR‐23b enhanced barrier‐associated properties, promoted repair‐related signaling, and reduced BBB leakage in experimental stroke models, supporting further ...
Victor Anthony Martinez   +16 more
wiley   +1 more source

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