Products related to Allosteric:
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Mountains Piled Upon Mountains : Appalachian Nature Writing in the Anthropocene
Mountains Piled upon Mountains features nearly fifty writers from across Appalachia sharing their place-based fiction, literary nonfiction, and poetry.Moving beyond the tradition of transcendental nature writing, much of the work collected here engages current issues facing the region and the planet (such as hydraulic fracturing, water contamination, mountaintop removal, and deforestation), and provides readers with insights on the human-nature relationship in an era of rapid environmental change.This book includes a mix of new and recent creative work by established and emerging authors.The contributors write about experiences from northern Georgia to upstate New York, invite parallels between a watershed in West Virginia and one in North Carolina, and often emphasize connections between Appalachia and more distant locations.In the pages of Mountains Piled upon Mountains are celebration, mourning, confusion, loneliness, admiration, and other emotions and experiences rooted in place but transcending Appalachia's boundaries.
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Custom Go Outdoors Hiking Patch Embroidery Patch for Jackets Mountains Nature Hiking badge applique iron sew on patches
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Beyond Nature and Culture
Successor to Claude Levi-Strausa at the College de France, Philippe Descola has become one of the most important anthropologists working today, and Beyond Nature and Culture has been a major influence in European intellectual life since its publication in 2005.Here, finally, it is brought to English-language readers.At its heart is a question central to both anthropology and philosophy: what is the relationship between nature and culture?Culture - as a collective human making, of art, language, and so forth - is often seen as essentially different than nature, which is portrayed as a collective of the nonhuman world, of plants, animals, geology, and natural forces.Descola shows this essential difference to be, however, not only a specifically Western notion, but also a very recent one.Drawing on ethnographic examples from around the world and theoretical understandings from cognitive science, structural analysis, and phenomenology, he formulates a sophisticated new framework, the "four ontologies" - animism, totemism, naturalism, and analogism - to account for all the ways we relate ourselves to nature. By thinking beyond nature and culture as a simple dichotomy, Descola offers nothing short of a fundamental reformulation by which anthropologists and philosophers can see the world afresh.
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Meteorite : Nature and Culture
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What is the difference between allosteric inhibition and allosteric activation?
Allosteric inhibition occurs when a molecule binds to an allosteric site on an enzyme, causing a conformational change that decreases the enzyme's activity. In contrast, allosteric activation involves a molecule binding to an allosteric site on an enzyme, leading to a conformational change that increases the enzyme's activity. Essentially, allosteric inhibition decreases enzyme activity, while allosteric activation increases enzyme activity.
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What is allosteric inhibition?
Allosteric inhibition is a type of enzyme regulation where a molecule binds to a site on the enzyme that is different from the active site, causing a conformational change in the enzyme's structure. This change reduces the enzyme's activity and ability to bind to its substrate, ultimately inhibiting its function. Allosteric inhibition is a reversible process and can be used to regulate enzyme activity in response to changing cellular conditions.
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Is allosteric inhibition irreversible?
Allosteric inhibition is typically reversible, meaning that the inhibitor can bind to the allosteric site and block the activity of the enzyme, but can also dissociate from the site, allowing the enzyme to regain its activity. This is in contrast to irreversible inhibition, where the inhibitor forms a covalent bond with the enzyme, permanently inactivating it.
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What is a cofactor allosteric activator?
A cofactor allosteric activator is a molecule that binds to an enzyme at a site other than the active site, causing a conformational change in the enzyme that increases its activity. This type of activator works by promoting the enzyme's ability to bind to its substrate and carry out its catalytic function. Cofactor allosteric activators are important for regulating enzyme activity in response to changes in the cell's environment, allowing for fine-tuning of metabolic pathways and other cellular processes.
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Mountain : Nature and Culture
Majestic and awe-inspiring, mountains demand our attention.Through the centuries, they have both repulsed and attracted.They have been appreciated and despised as sites of divine and diabolic sublimity, as the dwellings of gods and demons, hermits and revolutionaries.Mountain encounters have defined ways of seeing. They have changed our sense of time. They have pushed the boundary between life and death.Progressively tamed, exploited, even commodified, today mountains continue to attract seekers of spiritual quietness and of extreme emotions alike, as well as weekend travellers looking for a break from the everyday.In this compelling journey through peaks both real and imaginary, Veronica della Dora explores how the history of mountains is deeply interlaced with cultural values and aesthetic tastes, with religious beliefs and scientific practices.She shows how mountains are ultimately collaborations between geology and the human imagination, and how they have helped shape our environmental consciousness and our place in the world. Magnificently illustrated, and featuring examples from five continents and beyond, Mountain offers a fascinating exploration of mountains and the idea of mountain in art and literature, science and sport, religion and myth.
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Glacier : Nature and Culture
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Does Vmax change in allosteric inhibition?
Yes, Vmax can change in allosteric inhibition. Allosteric inhibition occurs when a molecule binds to an enzyme at a site other than the active site, causing a conformational change that reduces the enzyme's activity. This can result in a decrease in the enzyme's maximum velocity (Vmax) as the enzyme becomes less efficient at catalyzing the reaction. Therefore, allosteric inhibition can lead to a decrease in Vmax, ultimately affecting the rate of the enzymatic reaction.
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Is end product repression automatically an allosteric inhibition?
End product repression is not automatically an allosteric inhibition. While end product repression often involves the inhibition of an enzyme by the end product of a metabolic pathway, this inhibition can occur through various mechanisms. Allosteric inhibition is one possible mechanism, where the end product binds to a site on the enzyme other than the active site, leading to a conformational change that inhibits the enzyme's activity. However, end product repression can also occur through competitive inhibition, non-competitive inhibition, or other regulatory mechanisms that do not involve allosteric binding.
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What is the difference between competitive and allosteric inhibition?
Competitive inhibition occurs when a molecule competes with the substrate for the active site of an enzyme, blocking the substrate from binding and inhibiting the enzyme's activity. In contrast, allosteric inhibition involves a molecule binding to a site on the enzyme that is not the active site, causing a conformational change in the enzyme that reduces its activity. Allosteric inhibitors can either enhance or reduce the enzyme's activity, depending on the specific molecule and its binding site on the enzyme.
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Is an end-product repression automatically an allosteric inhibition?
No, an end-product repression is not automatically an allosteric inhibition. End-product repression refers to the regulation of enzyme activity by the final product of a metabolic pathway, typically through feedback inhibition. This can occur through various mechanisms, including competitive inhibition or non-competitive inhibition, in addition to allosteric inhibition. Allosteric inhibition specifically involves the binding of a molecule at a site other than the active site, leading to a conformational change that affects enzyme activity.
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