New and innovative study of the shifting spaces and material practices of social reproduction in the global era. Investigates changing conceptions of subjectivity, national identity and modernity. Focuses on both theoretical and practical issues. Includes case studies on migration, education and domesticity. Reviews "A fascinating journey through the tangled power relations and layered geographies of social reproduction.
The essays are creative, diverse, and internationally thought-provoking.
e-book Lifes Work: Geographies of Social Reproduction (Antipode Book Series)
She is currently completing a monograph entitled, Transnationalism and the Politics of Space, for Temple University Press. MacArthur Foundation. Free Access. Summary PDF Request permissions. In this book chapter, we consider what it would mean to see the sites and practices of 'life's work' as potential areas that spark change in economies and subjectivities.
In this paper I explore how notions of dwelling might be adapted to explain how diverse economic practices produce new economic spaces and subjectivities within and beyond the home. The book review explores how a range of authors engage with the political possibilities and limitations of affect theory. Main menu.
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Wageningen, Netherlands. Publications Community Economy This short essay is one of 50 keyword essays published online by the Antipode Foundation to celebrate 50 years of the radical geography journal, Antipode. Enacting post-capitalist politics through the sites and practices of social reproduction In this book chapter, we consider what it would mean to see the sites and practices of 'life's work' as potential areas that spark change in economies and subjectivities.
Skip to content Free download. Book file PDF easily for everyone and every device. In Figure 3. In Eq.
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This represents a type of focusing called a caustic. The simplest way to interpret the caustic at point B is to think of rays from the AB and BC branches—the energy turning above and reflecting off the discontinuity, respectively—constructively interfering. The amplitude may be large, but it is not infinite. This is an example of how ray theory can break down; the rays are turning in a region of the Earth where the velocity gradient is rapidly changing, and our assumptions for the eikonal equation are inappropriate.
Another caustic is the cusp associated with the termination of a shadow zone see point D in Figure 3. In a spherical Earth, strong focusing occurs at the antipode. In the sphere, seismic waves spread in all directions. Geometric consideration shows that these spreading wavefields converge at a point exactly opposite the epicenter see Figure 3.
If the Earth is homogeneous, then all common portions of the wavefront should arrive simultaneously at the receiver and produce strong amplification. Multiple arrivals will be observed because the wavefront has folded over on itself. Figure 3. Note how dramatic the focusing effects are for various phases within a few degrees of the antipode. Example of how raypaths converge at the antipode.
How does our expression for the decay of energy relate to the ground shaking of a seismic wave? Basically, amplitude will be proportional to E , so 3. Let us consider this in more detail. We can calculate this energy using a simple analog, namely the restoring force of a mass suspended from a spring. If the mass is initially at equilibrium, the total work is given by. A similar argument can be applied to potential energy.
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The potential energy is the strain associated with the transient stress pulse. Thus the stored strain in a small volume is given by. Now let us evaluate Eq. Consider an SH plane wave propagating in the x 1 direction, with all motion in the x 2 direction:. Thus the energy in a plane wave is proportional to the square of the pulse amplitude and inversely proportional to the square of the period. Thus, if the amplitude of two seismic signals is the same, the higher-frequency signal transports more energy. The amplitude of a seismic signal is modified during propagation by several phenomena.
Life's Work : Geographies of Social Reproduction
We have already seen that geometric spreading decreases the amplitude. There are nearly as many species of cormorants and shags as all of the remaining members of the Pelecaniformes. This family has about 60 described taxa; these are sometimes lumped into as few as 26 species or as many as 40 or more. The discrepancy lies in the many related island forms found throughout the Southern Ocean, including Antarctic, Subantarctic, and Southern Subtemperate waters.
There are two distinct subfamilies, the cormorants Phalacrocoracinae and the shags Leucocarboninae , although the common names often do not correspond so neatly: the pied shag of the Antipodes is in fact a cormorant, and the pelagic cormorant of the North Pacific is a shag. The two groups are distinguished by clear morphological and genetic differences, and represent an early divergence as far back as the Miocene, perhaps 15—20 million years ago.
Cormorants are generally heavy-bodied birds with labored flight, commonly found on fresh water systems, often far into the interior. Shags are smaller and slimmer, are more powerful fliers, and are common inhabitants of the marine littoral, neritic, and pelagic waters. In many species, particularly those of the Northern Hemisphere, the plumage is basically black or very dark, often with metallic or iridescent sheens to the feathers. Most shags and cormorants of the Southern Hemisphere have in addition a white abdomen; in a few species such as the red-legged shag and spotted shag Stictocarbo gaimardi and S.
In breeding, adults will often undergo dramatic changes in color and appearance that affect both bare parts and the plumage. The naked skin of the face, gular pouch, bill lining, and rarely feet, become more intensely colored, change color, or even assume color, and these changes are often accompanied by enlarged or increased carunculations near the eyes and face. Many species produce long white filoplumes and breeding plumes on the head and neck great cormorant, Phalacrocorax carbo sinensis , and in a few species red-faced, pelagic cormorants Stictocarbo urile, S.
Unlike many other Pelecaniformes, cormorants and shags have very flexible requirements for nesting and nest construction. They are known to breed in diverse habitats including on level ground, on cliffs and embankments, in trees, on bridge supports, and on wharfs: generally, on objects large and sturdy enough to support the weight of the nest and occupants while affording protection from ground predators.
Proximity to water is an absolute requirement because cormorants are nearly exclusively piscivorous, and the size of breeding colonies in continental interiors correlates with how close they are to feeding areas Figure 2. By virtue of wing morphology and aerodynamics, cormorants are indifferent fliers and do not range far from roosting or breeding areas. Colony and perch sites as a consequence are located near foraging areas, tend to be patchily distributed throughout the landscape, and concentrate large numbers of birds.
There is ongoing debate whether cormorants in colonies share information in some way about feeding areas, but the phenomenon of social feeding in cormorants — as in pelicans — is well observed. Two patterns are known: line hunting, in which cormorants move through the water in a straight line in a rolling flock, and zigzag hunting, in which individuals search and change directions. Line hunting is usually associated with smaller fish like smelt Osmerus and ruffe Gymnocephalus , whereas zigzag fishing is seen when cormorants pursue larger fish like roach Rutilus and Perch Perca.
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Figure 2. Maximum colony size open circles and, if different, most recent colony size dark circles indicate effects of oversaturation of feeding resources.
The recent colonies in Denmark shaded circles are undersaturated with respect to available feeding resources and are fast expanding in size. Numbers refer to monitored colonies in Denmark 1—3 and The Netherlands 4—6. Redrawn with permission from van Eerden and Gregersen Causey, V.