Author: Joseph M. Siry
Publisher: Penn State Press
ISBN: 0271089008
Category : Architecture
Languages : en
Pages : 764
Book Description
Air-Conditioning in Modern American Architecture, 1890–1970, documents how architects made environmental technologies into resources that helped shape their spatial and formal aesthetic. In doing so, it sheds important new light on the ways in which mechanical engineering has been assimilated into the culture of architecture as one facet of its broader modernist project. Tracing the development and architectural integration of air-conditioning from its origins in the late nineteenth century to the advent of the environmental movement in the early 1970s, Joseph M. Siry shows how the incorporation of mechanical systems into modernism’s discourse of functionality profoundly shaped the work of some of the movement’s leading architects, such as Dankmar Adler, Louis Sullivan, Frank Lloyd Wright, Ludwig Mies van der Rohe, Gordon Bunshaft, and Louis Kahn. For them, the modernist ideal of functionality was incompletely realized if it did not wholly assimilate heating, cooling, ventilating, and artificial lighting. Bridging the history of technology and the history of architecture, Siry discusses air-conditioning’s technical and social history and provides case studies of buildings by the master architects who brought this technology into the conceptual and formal project of modernism. A monumental work by a renowned expert in American modernist architecture, this book asks us to see canonical modernist buildings through a mechanical engineering–oriented lens. It will be especially valuable to scholars and students of architecture, modernism, the history of technology, and American history.
Air-Conditioning in Modern American Architecture, 1890–1970
Author: Joseph M. Siry
Publisher: Penn State Press
ISBN: 0271089008
Category : Architecture
Languages : en
Pages : 764
Book Description
Air-Conditioning in Modern American Architecture, 1890–1970, documents how architects made environmental technologies into resources that helped shape their spatial and formal aesthetic. In doing so, it sheds important new light on the ways in which mechanical engineering has been assimilated into the culture of architecture as one facet of its broader modernist project. Tracing the development and architectural integration of air-conditioning from its origins in the late nineteenth century to the advent of the environmental movement in the early 1970s, Joseph M. Siry shows how the incorporation of mechanical systems into modernism’s discourse of functionality profoundly shaped the work of some of the movement’s leading architects, such as Dankmar Adler, Louis Sullivan, Frank Lloyd Wright, Ludwig Mies van der Rohe, Gordon Bunshaft, and Louis Kahn. For them, the modernist ideal of functionality was incompletely realized if it did not wholly assimilate heating, cooling, ventilating, and artificial lighting. Bridging the history of technology and the history of architecture, Siry discusses air-conditioning’s technical and social history and provides case studies of buildings by the master architects who brought this technology into the conceptual and formal project of modernism. A monumental work by a renowned expert in American modernist architecture, this book asks us to see canonical modernist buildings through a mechanical engineering–oriented lens. It will be especially valuable to scholars and students of architecture, modernism, the history of technology, and American history.
Publisher: Penn State Press
ISBN: 0271089008
Category : Architecture
Languages : en
Pages : 764
Book Description
Air-Conditioning in Modern American Architecture, 1890–1970, documents how architects made environmental technologies into resources that helped shape their spatial and formal aesthetic. In doing so, it sheds important new light on the ways in which mechanical engineering has been assimilated into the culture of architecture as one facet of its broader modernist project. Tracing the development and architectural integration of air-conditioning from its origins in the late nineteenth century to the advent of the environmental movement in the early 1970s, Joseph M. Siry shows how the incorporation of mechanical systems into modernism’s discourse of functionality profoundly shaped the work of some of the movement’s leading architects, such as Dankmar Adler, Louis Sullivan, Frank Lloyd Wright, Ludwig Mies van der Rohe, Gordon Bunshaft, and Louis Kahn. For them, the modernist ideal of functionality was incompletely realized if it did not wholly assimilate heating, cooling, ventilating, and artificial lighting. Bridging the history of technology and the history of architecture, Siry discusses air-conditioning’s technical and social history and provides case studies of buildings by the master architects who brought this technology into the conceptual and formal project of modernism. A monumental work by a renowned expert in American modernist architecture, this book asks us to see canonical modernist buildings through a mechanical engineering–oriented lens. It will be especially valuable to scholars and students of architecture, modernism, the history of technology, and American history.
Air-Conditioning in Modern American Architecture, 1890-1970
Author: Joseph M Siry
Publisher:
ISBN: 9780271086958
Category :
Languages : en
Pages :
Book Description
Wesleyan University. He is the author of four books, including most recently Beth Sholom Synagogue:
Publisher:
ISBN: 9780271086958
Category :
Languages : en
Pages :
Book Description
Wesleyan University. He is the author of four books, including most recently Beth Sholom Synagogue:
Home, Heat, Money, God
Author: Kathryn E. O'Rourke
Publisher: University of Texas Press
ISBN: 1477328920
Category : Architecture
Languages : en
Pages : 401
Book Description
"The idea for this book came about when architectural historian Kathryn O'Rourke and architect / photographer Ben Koush collaborated on a piece on postmodern architecture for Texas Architect. The two enjoyed working together--with O'Rourke writing and Koush providing visuals--and, together with UTP, developed the framework for a similarly rich, book-length treatment of modern architecture in Texas. Conceived to be accessible to a general readership, this project explores in photographs and words approximately fifty years of Texas modern architecture, from the 1930s to the 1980s. As O'Rourke writes, "In this period, modern architecture and Texas grew and changed at an astonishing pace. The state became a significant force in national and international affairs, chiefly as a consequence of the oil industry and the presence of politically powerful Texans in Washington, D.C. Major buildings, many designed by regionally and nationally-prominent architects, followed the money in the state as the influence and image of Texas grew. Relentless ambition, a forward-looking attitude, and a strong sense of place combined to make Texans particularly receptive to modern architecture's implication of newness, its future-oriented image, and its capacity to reinterpret historical forms in novel ways." While many books on Texas architecture focus on one building type (residential architecture, courthouses, and so on), this project adopts a broader lens. A dozen chapters presented under four thematic headings explore buildings through a variety of frameworks--there are the inescapable forces of heat and money, essential functions like caregiving and government, and groupings for leisure and multi-building sites such as museums and campuses. In each of these sections, the authors present a "constellation" of buildings, with one central example and several supporting ones. So, for instance, the "God" chapter presents O'Neil Ford's Little Chapel in the Woods in Denton as its main building, alongside the Antioch Baptist Church in San Antonio and the Congregation Rodef Shalom in Waco. This sort of geographical diversity, with big cities sitting alongside smaller and lesser studied places, runs through the volume as a whole"--
Publisher: University of Texas Press
ISBN: 1477328920
Category : Architecture
Languages : en
Pages : 401
Book Description
"The idea for this book came about when architectural historian Kathryn O'Rourke and architect / photographer Ben Koush collaborated on a piece on postmodern architecture for Texas Architect. The two enjoyed working together--with O'Rourke writing and Koush providing visuals--and, together with UTP, developed the framework for a similarly rich, book-length treatment of modern architecture in Texas. Conceived to be accessible to a general readership, this project explores in photographs and words approximately fifty years of Texas modern architecture, from the 1930s to the 1980s. As O'Rourke writes, "In this period, modern architecture and Texas grew and changed at an astonishing pace. The state became a significant force in national and international affairs, chiefly as a consequence of the oil industry and the presence of politically powerful Texans in Washington, D.C. Major buildings, many designed by regionally and nationally-prominent architects, followed the money in the state as the influence and image of Texas grew. Relentless ambition, a forward-looking attitude, and a strong sense of place combined to make Texans particularly receptive to modern architecture's implication of newness, its future-oriented image, and its capacity to reinterpret historical forms in novel ways." While many books on Texas architecture focus on one building type (residential architecture, courthouses, and so on), this project adopts a broader lens. A dozen chapters presented under four thematic headings explore buildings through a variety of frameworks--there are the inescapable forces of heat and money, essential functions like caregiving and government, and groupings for leisure and multi-building sites such as museums and campuses. In each of these sections, the authors present a "constellation" of buildings, with one central example and several supporting ones. So, for instance, the "God" chapter presents O'Neil Ford's Little Chapel in the Woods in Denton as its main building, alongside the Antioch Baptist Church in San Antonio and the Congregation Rodef Shalom in Waco. This sort of geographical diversity, with big cities sitting alongside smaller and lesser studied places, runs through the volume as a whole"--
The Vortex
Author: Frank Uekötter
Publisher: University of Pittsburgh Press
ISBN: 0822989808
Category : Science
Languages : en
Pages : 752
Book Description
Environmental challenges are defining the twenty-first century. To fully understand ongoing debates about our current crises—climate change, loss of biological diversity, pollution, extinction, resource woes—means revisiting their origins, in all their complexity. With this ambitious, highly original contribution to the environmental history of global modernity, Frank Uekötter considers the many ways humans have had an impact on their physical environment throughout history. Ours is not a one-way trajectory to sudden collapse, he argues, but rather death by a thousand cuts. The many paths we’ve forged to arrive in our current predicament, from agriculture to industry to infrastructure, must be considered collectively if we are to stay afloat in what Uekötter describes as a vortex: a powerful metaphor for the flow of history, capturing the momentum and the many crosscurrents that swept people and environments along. His book invites us to look at environmental challenges from multiple perspectives, including all the twists and turns that have helped to create the mess we find ourselves in. Uekötter has written a world history for an age where things are falling apart: where we know what lies ahead and are equipped with the right tools—technological and otherwise—and plenty of experience to deal with environmental challenges, but somehow fail to get our affairs in order.
Publisher: University of Pittsburgh Press
ISBN: 0822989808
Category : Science
Languages : en
Pages : 752
Book Description
Environmental challenges are defining the twenty-first century. To fully understand ongoing debates about our current crises—climate change, loss of biological diversity, pollution, extinction, resource woes—means revisiting their origins, in all their complexity. With this ambitious, highly original contribution to the environmental history of global modernity, Frank Uekötter considers the many ways humans have had an impact on their physical environment throughout history. Ours is not a one-way trajectory to sudden collapse, he argues, but rather death by a thousand cuts. The many paths we’ve forged to arrive in our current predicament, from agriculture to industry to infrastructure, must be considered collectively if we are to stay afloat in what Uekötter describes as a vortex: a powerful metaphor for the flow of history, capturing the momentum and the many crosscurrents that swept people and environments along. His book invites us to look at environmental challenges from multiple perspectives, including all the twists and turns that have helped to create the mess we find ourselves in. Uekötter has written a world history for an age where things are falling apart: where we know what lies ahead and are equipped with the right tools—technological and otherwise—and plenty of experience to deal with environmental challenges, but somehow fail to get our affairs in order.
Screening Fears
Author: Francesco Casetti
Publisher: Princeton University Press
ISBN: 1942130880
Category : Social Science
Languages : en
Pages : 148
Book Description
A historical and theoretical investigation of the unexpected ways screen-based media protect and excite viewers’ fears and anxieties of the world In this brilliant contribution to contemporary media studies, acclaimed theorist Francesco Casetti advances a provocative hypothesis: instead of being prostheses that expand or extend our perceptions, modern screen-based media are in fact apparatuses that shelter and protect us from exposure to the world. Rather than bringing us closer to external reality, dominant forms of visual media function as barriers or enclosures that defend against the apparent threats and dangers that seem increasingly to surround us. Working with an original historical overview that begins with the Phantasmagoria of the late eighteenth century, then the shared interior spaces of the movie theater in the early to mid-twentieth century, and finally the solitary digital milieus of the present, Casetti traces the outlines of the protective “bubbles” that disconnect us from our immediate surroundings. To be provided with a shield of immunity to the hazards and uncertainties of the world while experiencing them at a safe remove might seem a positive development. But, he asks, what if these media, instead of providing invulnerability, ensnare individuals in a suffocating enclosure? What if, in their effort to keep reality under control, they exercise a violence equal to that of the dangers they resist? In a dialectical exercise, and through a vivid range of cultural artifacts, Screening Fears traces the emergence of modern protective media and the way they changed our forms of mediation with the world in which we live.
Publisher: Princeton University Press
ISBN: 1942130880
Category : Social Science
Languages : en
Pages : 148
Book Description
A historical and theoretical investigation of the unexpected ways screen-based media protect and excite viewers’ fears and anxieties of the world In this brilliant contribution to contemporary media studies, acclaimed theorist Francesco Casetti advances a provocative hypothesis: instead of being prostheses that expand or extend our perceptions, modern screen-based media are in fact apparatuses that shelter and protect us from exposure to the world. Rather than bringing us closer to external reality, dominant forms of visual media function as barriers or enclosures that defend against the apparent threats and dangers that seem increasingly to surround us. Working with an original historical overview that begins with the Phantasmagoria of the late eighteenth century, then the shared interior spaces of the movie theater in the early to mid-twentieth century, and finally the solitary digital milieus of the present, Casetti traces the outlines of the protective “bubbles” that disconnect us from our immediate surroundings. To be provided with a shield of immunity to the hazards and uncertainties of the world while experiencing them at a safe remove might seem a positive development. But, he asks, what if these media, instead of providing invulnerability, ensnare individuals in a suffocating enclosure? What if, in their effort to keep reality under control, they exercise a violence equal to that of the dangers they resist? In a dialectical exercise, and through a vivid range of cultural artifacts, Screening Fears traces the emergence of modern protective media and the way they changed our forms of mediation with the world in which we live.
Assembly by Design
Author: Olga Touloumi
Publisher: U of Minnesota Press
ISBN: 1452971544
Category : Architecture
Languages : en
Pages : 363
Book Description
How the United Nations headquarters became the architectural instrument and broadcast medium of global diplomacy For almost seven years after World War II, a small group of architects took on an exciting task: to imagine the spaces of global governance for a new political organization called the United Nations (UN). To create the iconic headquarters of the UN in New York City, these architects experimented with room layouts, media technologies, and design in tribunal courtrooms, assembly halls, and council chambers. The result was the creation of a new type of public space, the global interior. Assembly by Design shows how this space leveraged media to help the UN communicate with the world. With its media infrastructure, symbols, acoustic design, and architecture, the global interior defined political assembly both inside and outside the UN headquarters, serving as the architectural medium to organize multilateral encounters of international publics around the globe. Demonstrating how aesthetics have long held sway over political work, Olga Touloumi posits that the building framed diplomacy on the ground amid a changing political landscape that brought the United States to the forefront of international politics, destabilizing old and establishing new geopolitical alliances. Uncovering previously closed institutional and family archives, Assembly by Design offers new information about the political and aesthetic decisions that turned the UN headquarters into a communications organism. It looks back at a moment of hope, when politicians, architects, and diplomats—believing that assembly was a matter of design—worked together to deliver platforms for global democracy and governance.
Publisher: U of Minnesota Press
ISBN: 1452971544
Category : Architecture
Languages : en
Pages : 363
Book Description
How the United Nations headquarters became the architectural instrument and broadcast medium of global diplomacy For almost seven years after World War II, a small group of architects took on an exciting task: to imagine the spaces of global governance for a new political organization called the United Nations (UN). To create the iconic headquarters of the UN in New York City, these architects experimented with room layouts, media technologies, and design in tribunal courtrooms, assembly halls, and council chambers. The result was the creation of a new type of public space, the global interior. Assembly by Design shows how this space leveraged media to help the UN communicate with the world. With its media infrastructure, symbols, acoustic design, and architecture, the global interior defined political assembly both inside and outside the UN headquarters, serving as the architectural medium to organize multilateral encounters of international publics around the globe. Demonstrating how aesthetics have long held sway over political work, Olga Touloumi posits that the building framed diplomacy on the ground amid a changing political landscape that brought the United States to the forefront of international politics, destabilizing old and establishing new geopolitical alliances. Uncovering previously closed institutional and family archives, Assembly by Design offers new information about the political and aesthetic decisions that turned the UN headquarters into a communications organism. It looks back at a moment of hope, when politicians, architects, and diplomats—believing that assembly was a matter of design—worked together to deliver platforms for global democracy and governance.
Building/Object
Author: Charlotte Ashby
Publisher: Bloomsbury Publishing
ISBN: 135023401X
Category : Architecture
Languages : en
Pages : 311
Book Description
Building/Object addresses the space in between the conventional objects of design and the conventional objects of architecture, probing and reassessing the differences between the disciplines of design history and architectural history Each of the 13 chapters in this book examine things which are neither object-like nor building-like, but somewhere in between – air conditioning; bookshelves; partition walls; table-monuments; TVs; convenience stores; cars – exposing particular political configurations and resonances that otherwise might be occluded. In doing so, they reveal that the definitions we make of objects in opposition to buildings, and of architecture in opposition to design, are not as fundamental as they seem. This book brings new aspects of the creative and experiential into our understanding of the human environment.
Publisher: Bloomsbury Publishing
ISBN: 135023401X
Category : Architecture
Languages : en
Pages : 311
Book Description
Building/Object addresses the space in between the conventional objects of design and the conventional objects of architecture, probing and reassessing the differences between the disciplines of design history and architectural history Each of the 13 chapters in this book examine things which are neither object-like nor building-like, but somewhere in between – air conditioning; bookshelves; partition walls; table-monuments; TVs; convenience stores; cars – exposing particular political configurations and resonances that otherwise might be occluded. In doing so, they reveal that the definitions we make of objects in opposition to buildings, and of architecture in opposition to design, are not as fundamental as they seem. This book brings new aspects of the creative and experiential into our understanding of the human environment.
Isfahan
Author: Farshid Emami
Publisher: Penn State Press
ISBN: 027109611X
Category : Architecture
Languages : en
Pages : 737
Book Description
A vibrant urban settlement from medieval times and the royal seat of the Safavid dynasty, the city of Isfahan emerged as a great metropolis during the seventeenth century. Using key sources, this book reconstructs the spaces and senses of this dynamic city. Focusing on nuances of urban experience, Farshid Emami expands our understanding of Isfahan in a global context. He takes the reader on an evocative journey through the city’s markets, promenades, and coffeehouses, bringing to life the social landscapes that animated the lives of urban dwellers and shaped their perceptions of themselves and the world. In doing so, Emami reveals seventeenth-century Isfahan as more than a cluster of beautiful monuments and gardens. It was a cosmopolitan city, where senses and materials, nature and artifice, and ritual and sociability acted in unison, engendering urban experiences that became paramount across the globe during the early modern period. Drawing extensively on Persian literary and visual sources, including the “Guide for Strolling in Isfahan,” this book casts new light on the history of a major Eurasian city and opens up new possibilities for cross-cultural studies of urban experience in the early modern period.
Publisher: Penn State Press
ISBN: 027109611X
Category : Architecture
Languages : en
Pages : 737
Book Description
A vibrant urban settlement from medieval times and the royal seat of the Safavid dynasty, the city of Isfahan emerged as a great metropolis during the seventeenth century. Using key sources, this book reconstructs the spaces and senses of this dynamic city. Focusing on nuances of urban experience, Farshid Emami expands our understanding of Isfahan in a global context. He takes the reader on an evocative journey through the city’s markets, promenades, and coffeehouses, bringing to life the social landscapes that animated the lives of urban dwellers and shaped their perceptions of themselves and the world. In doing so, Emami reveals seventeenth-century Isfahan as more than a cluster of beautiful monuments and gardens. It was a cosmopolitan city, where senses and materials, nature and artifice, and ritual and sociability acted in unison, engendering urban experiences that became paramount across the globe during the early modern period. Drawing extensively on Persian literary and visual sources, including the “Guide for Strolling in Isfahan,” this book casts new light on the history of a major Eurasian city and opens up new possibilities for cross-cultural studies of urban experience in the early modern period.
Architectural Revolution on the Ottoman Frontier
Author: Emily Neumeier
Publisher: Penn State Press
ISBN: 0271099631
Category : Architecture
Languages : en
Pages : 231
Book Description
In the early nineteenth century, the most consequential developments in Ottoman architecture were taking place not in Istanbul but in the farthest reaches of imperial territory. Emily Neumeier investigates this wider phenomenon through a consideration of the architecture of Ali Pasha of Ioannina, one of the most prolific patrons in the history of the Ottoman Empire, who undertook a building program so ambitious that it ultimately got him killed. Ali Pasha is still a household name in present-day Greece and Albania, where he served as Ottoman governor from 1788 to 1822. To consolidate his rule over an incredibly diverse population, the governor set out on a sweeping building program that included mosques, palaces, military fortifications, dervish lodges, and even Orthodox Christian monasteries. Drawing upon a wealth of primary sources, Neumeier reveals how Ali Pasha’s buildings shifted the sociopolitical order by testing the standards of patronage established by the imperial court and relocating administrative authority from center to province. To reconstruct the world that Ali Pasha built, Neumeier draws from both extensive fieldwork and abundant archival material, whose far-flung nature—from Istanbul to London—reflects the impressively wide scope of Ali Pasha’s influence. Rigorously researched and packed with fascinating stories, this book presents an innovative spatial history of the Ottoman frontier during the age of revolutions, a pivotal period in the late eighteenth and early nineteenth centuries when there was no obvious blueprint for power. It will be of interest to specialists in art and architectural history, the Ottoman Empire, and Mediterranean, Islamic, and Modern Greek studies.
Publisher: Penn State Press
ISBN: 0271099631
Category : Architecture
Languages : en
Pages : 231
Book Description
In the early nineteenth century, the most consequential developments in Ottoman architecture were taking place not in Istanbul but in the farthest reaches of imperial territory. Emily Neumeier investigates this wider phenomenon through a consideration of the architecture of Ali Pasha of Ioannina, one of the most prolific patrons in the history of the Ottoman Empire, who undertook a building program so ambitious that it ultimately got him killed. Ali Pasha is still a household name in present-day Greece and Albania, where he served as Ottoman governor from 1788 to 1822. To consolidate his rule over an incredibly diverse population, the governor set out on a sweeping building program that included mosques, palaces, military fortifications, dervish lodges, and even Orthodox Christian monasteries. Drawing upon a wealth of primary sources, Neumeier reveals how Ali Pasha’s buildings shifted the sociopolitical order by testing the standards of patronage established by the imperial court and relocating administrative authority from center to province. To reconstruct the world that Ali Pasha built, Neumeier draws from both extensive fieldwork and abundant archival material, whose far-flung nature—from Istanbul to London—reflects the impressively wide scope of Ali Pasha’s influence. Rigorously researched and packed with fascinating stories, this book presents an innovative spatial history of the Ottoman frontier during the age of revolutions, a pivotal period in the late eighteenth and early nineteenth centuries when there was no obvious blueprint for power. It will be of interest to specialists in art and architectural history, the Ottoman Empire, and Mediterranean, Islamic, and Modern Greek studies.
Water and Sacred Architecture
Author: Anat Geva
Publisher: Taylor & Francis
ISBN: 1000863719
Category : Architecture
Languages : en
Pages : 438
Book Description
This edited book examines architectural representations that tie water, as a physical and symbolic property, with the sacred. The discussion centers on two levels of this relationship: how water influenced the sacredness of buildings across history and different religions; and how sacred architecture expressed the spiritual meaning of water. The volume deliberately offers original material on various unique contextual and design aspects of water and sacred architecture, rather than an attempt to produce a historic chronological analysis on the topic or focusing on a specific geographical region. As such, this unique volume adds a new dimension to the study of sacred architecture. The book’s chapters are compiled by a stellar group of scholars and practitioners from the US, Canada, Europe, Asia, and Africa. It addresses major aspects of water in religious buildings, such as, rituals, pilgrimage, water as a cultural material and place-making, hydro systems, modern practices, environmental considerations, the contribution of water to transforming secular into sacred, and future digital/cyber context of water and sacredness. All chapters are based on original archival studies, historical documents, and field visits to the sites and buildings. These examinations show water as an expression of architectural design, its materiality, and its spiritual values. The book will be of interest to architects, historians, environmentalists, archaeologists, religious scholars, and preservationists.
Publisher: Taylor & Francis
ISBN: 1000863719
Category : Architecture
Languages : en
Pages : 438
Book Description
This edited book examines architectural representations that tie water, as a physical and symbolic property, with the sacred. The discussion centers on two levels of this relationship: how water influenced the sacredness of buildings across history and different religions; and how sacred architecture expressed the spiritual meaning of water. The volume deliberately offers original material on various unique contextual and design aspects of water and sacred architecture, rather than an attempt to produce a historic chronological analysis on the topic or focusing on a specific geographical region. As such, this unique volume adds a new dimension to the study of sacred architecture. The book’s chapters are compiled by a stellar group of scholars and practitioners from the US, Canada, Europe, Asia, and Africa. It addresses major aspects of water in religious buildings, such as, rituals, pilgrimage, water as a cultural material and place-making, hydro systems, modern practices, environmental considerations, the contribution of water to transforming secular into sacred, and future digital/cyber context of water and sacredness. All chapters are based on original archival studies, historical documents, and field visits to the sites and buildings. These examinations show water as an expression of architectural design, its materiality, and its spiritual values. The book will be of interest to architects, historians, environmentalists, archaeologists, religious scholars, and preservationists.