Products related to Membrane potential:
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Potential History : Unlearning Imperialism
In this theoretical tour-de-force, renowned scholar Ariella Aïsha Azoulay calls on us to recognize the imperial foundations of knowledge and to refuse its strictures and its many violences. Azoulay argues that the institutions that make our world, from archives and museums to ideas of sovereignty and human rights to history itself, are all dependent on imperial modes of thinking.Imperialism has segmented populations into differentially governed groups, continually emphasised the possibility of progress while trying to destroy what came before, and voraciously sought out the new by sealing the past away in dusty archival boxes and the glass vitrines of museums. By practising what she calls potential history, Azoulay argues that we can still refuse the imperial violence that shattered communities, lives, and worlds, from native peoples in the Americas to the Congo ruled by Belgium's brutal King Léopold II, from dispossessed Palestinians in 1948 to displaced refugees in our own day.In Potential History, Azoulay travels alongside historical companions - an old Palestinian man who refused to leave his village in 1948, an anonymous woman in war-ravaged Berlin, looted objects and documents torn from their worlds and now housed in archives and museums - to chart the ways imperialism has sought to order time, space, and politics. Rather than looking for a new future, Azoulay calls upon us to rewind history and unlearn our imperial rights, to continue to refuse imperial violence by making present what was invented as "past" and making the repair of torn worlds the substance of politics.
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Art History for Comics : Past, Present and Potential Futures
This book looks at comics through the lens of Art History, examining the past influence of art-historical methodologies on comics scholarship to scope how they can be applied to Comics Studies in the present and future.It unearths how early comics scholars deployed art-historical approaches, including stylistic analysis, iconography, Cultural History and the social history of art, and proposes how such methodologies, updated in light of disciplinary developments within Art History, could be usefully adopted in the study of comics today.Through a series of indicative case studies of British and American comics like Eagle, The Mighty Thor, 2000AD, Escape and Heartbreak Hotel, it argues that art-historical methods better address overlooked aspects of visual and material form.Bringing Art History back into the interdisciplinary nexus of comics scholarship raises some fundamental questions about the categories, frameworks and values underlying contemporary Comics Studies.
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Collaboration : A Potential History of Photography
A new, revolutionary history of photography from a stellar team of writers and thinkers that challenges all existing narratives by focusing on the complex collaborations between photographer and subject. Collaboration presents a groundbreaking and multifaceted history of photography which explores photography through the lens of collaboration, challenging the dominant narratives around photographic history and authorship.In a vast, collaborative effort led by five of the great thinkers and practitioners in photography that includes more than 550 photographs and over 80 text contributors, this book breaks apart photography’s ‘single creator’ tradition by bringing to light tangible traces of collaboration – the various relationships, exchanges and interactions which occur between all participants in the event of photography. This book will provide the keys to understanding and decoding the complex politics of seeing.The conditions of collaboration in photography are explored through over 100 photography projects, divided into eight thematic chapters.The photographs from each project are presented non-hierarchically alongside quotes, testimonies, and short texts by guest contributors.These networks of texts and images provide perspective on a vast array of photographic themes, from Araki’s provocative portraits of women to archival files from the Spanish Civil War. Collaboration is not an ultimate account of what photography is, does, or means.Rather, the book is an inspiration for teaching and an open invitation to scholars, activists, photographers and others to practice always with and alongside others and participate actively in this engagement and enquiry.
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Kratom : History, Science and Therapeutic Potential
Kratom: History, Science and Therapeutic Potential is the first book to address the unregulated, widespread availability of kratom, with its weak opioid and stimulant effects, coupled with limited awareness of it by healthcare professionals.Kratom has great therapeutic utility and medicinal potential, but more study, caution, and possible regulation is needed.It discusses geographical sourcing, historical uses, current worldwide uses, and potential for treatment of other medical conditions.Most exciting for healthcare professionals will be the implications of this substance's potential for treatment of diseases like depression, ADHD, PTSD, and substance-use disorder, particularly opioid use disorder (OUD). Moreover, kratom and its active alkaloid mitragynine are getting remarkable attention at federal and local governments as more than eight million Americans consume this product annually.Yet, the paucity of information for researchers and clinicians is troublesome.
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What is the membrane potential?
The membrane potential is the difference in electric charge between the inside and outside of a cell membrane. It is created by the unequal distribution of ions, such as sodium, potassium, chloride, and calcium, across the membrane. This difference in charge allows the cell to generate and transmit electrical signals, which are essential for processes such as nerve conduction, muscle contraction, and cell communication. The membrane potential is maintained by the activity of ion channels and pumps in the cell membrane.
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How is the resting potential and membrane potential created?
The resting potential is created by the unequal distribution of ions across the cell membrane. This is maintained by the sodium-potassium pump, which actively transports sodium ions out of the cell and potassium ions into the cell. The membrane potential is created by the separation of charges across the cell membrane, with the inside of the cell being more negatively charged compared to the outside. This is due to the presence of negatively charged proteins inside the cell and the movement of ions across the membrane.
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What is the resting potential and the membrane potential?
The resting potential is the electrical potential difference across the membrane of a neuron when it is not being stimulated. It is typically around -70 millivolts and is maintained by the unequal distribution of ions across the membrane. The membrane potential refers to the difference in electrical charge between the inside and outside of the cell membrane, which is essential for the transmission of signals in neurons.
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What is the difference between equilibrium potential, resting potential, and membrane potential?
Equilibrium potential is the membrane potential at which the net flow of a particular ion across the membrane is zero. Resting potential is the membrane potential of a cell when it is at rest, typically around -70 millivolts in neurons. Membrane potential refers to the difference in electrical charge between the inside and outside of a cell, which is maintained by the selective permeability of the cell membrane to different ions. In summary, equilibrium potential is the potential at which there is no net flow of ions, resting potential is the potential of a cell at rest, and membrane potential is the overall potential across the cell membrane.
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I Have Potential classic fit.
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Potential Russia
Richard Washburn Child was an American author and diplomat who served as the U.S. ambassador to Italy between 1921 and 1924 during the rise of fascism in that country.Earlier, however, Child visited Russia on the eve of the revolution and was greatly impressed with what he saw.He praised the Russians for their spirit and independence.He optimistically believed that Russia was a dormant force ready to liberate itself from its feudal past and spring forward into modernity.He describes Russia’s resources, both natural and human, and attempts to explain the Russian mindset. Child acknowledged rumours of a stirring revolutionary mood, but he did not believe they were accurate.Reading his observations, given what we know would soon happen, is both fascinating and poignant.Child would later go on to be a huge supporter of Mussolini and editor of the dictator’s autobiography. Child urged the United States to establish partnerships with Russia and create opportunities with this powerful nation before other countries beat them to it.He believed that Great Britain was already taking steps to invest in Russia.Child also emphasised the importance of sending representatives to Russia who actually understood the customs and spoke the language.
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Killer Potential
Decisions were made: I made them. Violence was done: I did it. Crime scenes were fled: I fled them. People were hurt: I hurt them. Someone was loved: I loved them. Not everything I did was bad. Just most of it. A scholarship kid with straight As and big dreams, Evie Gordon always thought she was special, that she'd be someone.But after graduating from an elite university, she finds herself drowning in debt and working as an SAT tutor for the super-rich of Los Angeles. Everything changes one Sunday, when she arrives for a weekly lesson at the Victors' Beverly Hills mansion to discover pure carnage: the bloody remains of Mr. and Mrs. Victor sullying their beautiful back garden, and a woman crying for help from within the walls of the family's estate.Within moments, Evie and the woman go from bystanders to suspects to fugitives.Anointed the new Charles Manson by the press, a bloodthirsty ninety-nine percenter hoping to spark a class war, Evie is finally someone. At the heart of a nationwide manhunt, Evie is desperate to clear her name.But first she'll have to break down the barriers of her new companion - who is inscrutable, surprisingly skilled at being on the run, and quickly becoming the most important person in Evie's upside-down life.
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Potential
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What is the difference between resting potential and membrane potential?
Resting potential refers to the membrane potential of a neuron when it is not being stimulated or sending signals. It is typically around -70 millivolts and represents the baseline electrical charge of the neuron. Membrane potential, on the other hand, refers to the difference in electrical charge between the inside and outside of a neuron's cell membrane at any given moment, including both resting and active states. In summary, resting potential is a specific type of membrane potential that represents the neuron's baseline electrical state when not actively transmitting signals.
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How is the resting potential and the membrane potential formed?
The resting potential is the electrical potential difference across the membrane of a neuron when it is not being stimulated. This potential is formed by the unequal distribution of ions across the membrane, with more sodium ions outside the cell and more potassium ions inside the cell. The membrane potential is formed by the movement of these ions through ion channels in the membrane, which are selectively permeable to specific ions. The resting potential is maintained by the sodium-potassium pump, which actively transports sodium out of the cell and potassium into the cell, helping to maintain the concentration gradients of these ions.
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What is the difference between resting membrane potential and equilibrium potential?
Resting membrane potential is the electrical charge difference across the plasma membrane of a cell when the cell is at rest. It is typically around -70 millivolts in neurons and is maintained by the unequal distribution of ions across the membrane. On the other hand, equilibrium potential is the membrane potential at which the net movement of a particular ion across the membrane is zero. It is determined by the concentration gradient and the electrical gradient for a specific ion. While resting membrane potential is the overall charge across the membrane at rest, equilibrium potential is the specific potential at which a particular ion is balanced in its movement across the membrane.
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How are stimulus intensity and membrane potential related?
Stimulus intensity and membrane potential are related in that the strength of a stimulus can directly affect the membrane potential of a cell. When a stimulus is applied to a cell, it can cause a change in the membrane potential, either depolarizing or hyperpolarizing the cell. The magnitude of the change in membrane potential is directly related to the intensity of the stimulus. A stronger stimulus will typically result in a larger change in membrane potential, while a weaker stimulus will result in a smaller change. This relationship between stimulus intensity and membrane potential is important for the transmission of signals in the nervous system and for the generation of action potentials.
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