Activation Synthesis
Activation Synthesis - Related Videos
09:10
Synthesis of Indoxyl-glycosides for Detection of Glycosidase Activities
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Cited by 4 •
2015
Indoxyl glycosides are well-established and widely used tools for enzyme screening and enzyme activity monitoring. Especially for glucose type structures previous syntheses proved to be challenging and low yielding. Our novel approach employs indoxylic acid esters as precious intermediates to yield a considerable number of indoxyl glycosides in good yields.
09:36
Synthesis of Substrate-Bound Au Nanowires Via an Active Surface Growth Mechanism
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Cited by 2 •
2018
We report a solution-based method to synthesize substrate-bound Au nanowires. By tuning the molecular ligands used during the synthesis, the Au nanowires can be grown from various substrates with different surface properties. Au nanowire-based nanostructures can also be synthesized by adjusting the reaction parameters.
08:33
Hydrogel Synthesis
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2023
Source: Amber N. Barron, Ashlea Patterson, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Hydrogels are a versatile class of cross-linked polymers produced through relatively simple procedures and with generally inexpensive materials. They can be formed from solution and involve a polymer backbone formed from monomer reagents, an initiator which makes the polymer reactive and a crosslinking species which binds the polymer chains...
12:02
An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity
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Cited by 8 •
2016
A protocol to synthesize peptoids with mixed cationic functionality in the same sequence is presented (lysine- and arginine-type monomers). Subsequent testing of these compounds against Leishmania mexicana, the protozoan parasites that cause cutaneous leishmaniasis, is also described.
09:42
Solid Phase Synthesis
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2023
Source: Vy M. Dong and Diane Le, Department of Chemistry, University of California, Irvine, CA Merrifield's solid-phase synthesis is a Nobel Prize winning invention where a reactant molecule is bound on a solid support and undergoes successive chemical reactions to form a desired compound. When the molecules are bound to a solid support, excess reagents and byproducts can be removed by washing away the impurities, while the target compound remains bound to the resin. Specifically, we will...
FAQs
Brainstem activity during REM sleep provides internally generated signals that activate forebrain regions. These signals do not arrive as an organized external message, so the cerebral cortex must integrate fragmented neural input into an experienced sequence. This mechanism places dream formation within sleep-related brain activity and helps explain why dream narratives can shift rapidly or lack consistent logic.
Vividness and narrative coherence arise through partly different processes. During REM sleep, the cortex synthesizes active neural fragments with memories, emotions, and expectations, producing a subjectively convincing experience. Because the underlying inputs remain fragmented, the resulting dream may feel emotionally intense or perceptually rich while still containing abrupt transitions, inconsistencies, or loosely connected events.
They provide material that the cerebral cortex uses when organizing internally generated activity into a dream narrative. Stored memories can supply familiar people or settings, while emotions and expectations influence how fragmented signals are connected. This helps account for the personal quality of dreams without requiring every element to represent a fixed or universal symbol.
Activation Synthesis emphasizes how the sleeping brain constructs a narrative from neural activity, memories, emotions, and expectations rather than treating dream content as a coded message with one predetermined meaning. Dream material may reflect personal concerns, but the theory does not require a stable symbolic interpretation. This distinction shifts attention toward brain physiology and individual context.
The theory provides a framework for connecting reported dream experiences with sleep physiology. Psychologists can examine why dream reports contain vivid imagery, emotional material, and discontinuous narratives while considering the neural activity associated with REM sleep. Its value lies in relating subjective experience to mechanisms involving the brain, rather than treating dream content as independent of sleep biology.
Activation Synthesis links dreaming with three major areas of psychology: consciousness, memory, and emotion. Dreaming offers a setting in which researchers can consider how subjective experience emerges during sleep, how stored information contributes to mental content, and how emotional factors shape that content. The theory therefore connects a specific sleep phenomenon to broader questions about the mind.