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Hace 1 día · A protein is a polyamide. Secondary structure: regularly repeating local structures stabilized by hydrogen bonds. The most common examples are the α-helix, β-sheet and turns. Because secondary structures are local, many regions of different secondary structure can be present in the same protein molecule.
Hace 4 días · 2.4 million (2016) [9] Dementia is a syndrome associated with many neurodegenerative diseases (most commonly Alzheimer's ), which is characterized by a general decline in cognitive abilities that impacts a person's ability to perform everyday activities. This typically involves problems with memory, thinking, behavior, and motor control. [10]
Hace 4 días · The term "vampire" is the earliest recorded in English, Latin and French and they refer to vampirism in Russia, Poland and North Macedonia. [2] The English term was derived (possibly via French vampyre) from the German Vampir, in turn derived in the early 18th century from the Serbian вампир ( vampir ).
Hace 5 días · Knowledge is an awareness of facts, a familiarity with individuals and situations, or a practical skill. Knowledge of facts, also called propositional knowledge, is often characterized as true belief that is distinct from opinion or guesswork by virtue of justification. While there is wide agreement among philosophers that propositional ...
24 de abr. de 2024 · HANNOVER MESSE 2024: “Powerhouse for promising upswing”. HANNOVER MESSE News 26 Apr 2024. More than 130,000 visitors from 150 countries, 4,000 exhibiting companies, 300 startups and over 300 economic and political delegations ...
Hace 1 día · Fédération Internationalede MotocyclismeGrand Prix motorcycle racing. Jorge Martin is the current championship leader. The 2024 FIM MotoGP World Championship is the premier class of the 76th Fédération Internationale de Motocyclisme (FIM) Road Racing World Championship season, the highest level of competition in motorcycle road racing .
Hace 2 días · The universe is all of space and time [a] and their contents. [10] It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galaxies. Space and time, according to the prevailing cosmological ...
