Results 61 to 70 of about 3,775 (250)

Sleep and Dreams as Reflected by Science Fiction Literature and Films—Anything to Learn From?

open access: yesJournal of Sleep Research, Volume 34, Issue 5, October 2025.
ABSTRACT Sleep and dreams are frequent themes in science fiction (Sci‐Fi) literature and films, often used to explore questions about consciousness, reality, technology and the human experience. Sci‐Fi authors and filmmakers utilise the enigmatic nature of sleep and dreams to blur the boundaries between reality and imagination, raising philosophical ...
Dieter Riemann   +4 more
wiley   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

open access: yes, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D.   +2 more
core   +2 more sources

Bioactive Compounds, Medicinal Benefits, and Contemporary Extraction Methods for Lemon Balm (Melissa officinalis)

open access: yesFood Science &Nutrition, Volume 13, Issue 9, September 2025.
Lemon balm (Melissa officinalis) is a medicinal herb renowned for its diverse pharmacological properties, including antioxidant, antimicrobial, neuroprotective, and anti‐inflammatory effects. This review explores its botanical characteristics, bioactive compounds, advanced extraction methods, and therapeutic potential, particularly in treating brain ...
Farhang Hameed Awlqadr   +6 more
wiley   +1 more source

Lawsonia Inermis Markedly Improves Cognitive Functions in Animal Models and Modulate Oxidative Stress Markers in the Brain

open access: yesMedicina, 2019
Background and Objective: Medicinal plants represent an important source of alternative medicine for the management of various diseases. The present study was undertaken to assess the potential of Lawsonia inermis ethanol (Li.Et) and chloroform (Li.Chf ...
Numra Tariq Mir   +8 more
doaj   +1 more source

Protecting‐Group‐Free Amidation of Amino Acids using Lewis Acid Catalysts [PDF]

open access: yes, 2018
Amidation of unprotected amino acids has been investigated using a variety of ‘classical“ coupling reagents, stoichiometric or catalytic group(IV) metal salts, and boron Lewis acids.
Badland, M   +5 more
core   +1 more source

The Morphological, Behavioral, and Transcriptomic Life Cycle of Anthrobots

open access: yesAdvanced Science, Volume 12, Issue 31, August 21, 2025.
DNA is thought to determine shape, behavior, and lifespan, with developmental plasticity reserved for stem cells, embryos, and species like amphibia. How much morphogenetic plasticity do adult somatic human cells exhibit? Anthrobots are a self‐organizing, motile synthetic living construct made of genetically normal human epithelial cells.
Gizem Gumuskaya   +6 more
wiley   +1 more source

Elucidating the Three‐Dimensional Structure of Piracetam through Rotational Spectroscopy

open access: yesChemistryOpen, Volume 14, Issue 8, August 2025.
Neutral molecules of the nootropic drug piracetam are generated by laser ablation and structurally characterized by microwave spectroscopy. Two conformers differing in the exo/endo configuration of the pyrrolidine ring are detected, with exo being the predominant form.
S. Mato   +4 more
wiley   +1 more source

Simply crushed zizyphi spinosi semen prevents neurodegenerative diseases and reverses age-related cognitive decline in mice

open access: yeseLife
Neurodegenerative diseases are age-related disorders characterized by the cerebral accumulation of amyloidogenic proteins, and cellular senescence underlies their pathogenesis. Thus, it is necessary for preventing these diseases to remove toxic proteins,
Tomohiro Umeda   +6 more
doaj   +1 more source

The Neurophysiological Validation of the Hyperpolarization Theory of Internal Inhibition [PDF]

open access: yes, 2005
En los experimentos con conejos conscientes no inmovilizados se ha mostrado que la interrupción de lasreacciones tras la supresión del refuerzo, es decir, la elaboración de la inhibición interna, se ve acompañada por el incremento de fases, la ...
Shulgina, Galina I.
core   +2 more sources

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