The theoretical principles and methodological aspects of the thermal field-flow fractionation applied to study the thermal diffusion of the macromolecules in solution and colloidal particles in suspension were developed. The theoretical analysis indicated that the miniaturization of the separation channel for thermal field-flow fractionation should improve the performance of this technique. A new microchannel was conceived and built. The experimental results obtained for polymer samples with an extended range of molar masses from relatively low up to ultrahigh and for (...) the colloidal particles confirmed that the achieved resolution is the same but the versatility of the microchannel is superior to that of the standard size channels owing to the substantial decrease in the heat energy flux. This important improvement allows us to achieve very high resolution when applying constant-field-force operation, it makes it much easier to program the temperature drop which is an advantageous operational mode from the viewpoint of the time of analysis, and it extends considerably the range of perfectly controlled temperatures of the cold and hot walls. The sample amount needed for one analysis can be as small as a few nanograms. (shrink)

In this article, ethylene glycol + waterbased Maxwell nanofluid with radiation and Soret effects within two parallel plates has been investigated. The problem is formulated in the form of partial differential equations. The dimensionless governing equations for concentration, energy, and momentum are generalized by the fractional molecular diffusion, thermal flux, and shear stress defined by the Caputo–Fabrizio time fractional derivatives. The solutions of the problems are obtained via Laplace inversion numerical algorithm, namely, Stehfest’s. Nanoparticles of silver are (...) suspended in a mixture of EG + water to have a nanofluid. It is observed that the thermal conductivity of fluid is enhanced by increasing the values of time and volume fraction. The temperature and velocity of water-silver nanofluid are higher than those of ethylene glycol + water -silver nanofluid. The results are discussed at 2% of volume fraction. The results justified the thermo-physical characteristics of base fluids and nanoparticles shown in the tables. The effects of major physical parameters are illustrated graphically and discussed in detail. (shrink)

SummaryA kinetic theory of permeability is developed both for the case where the cell membrane is a distinct phase and where it is simply the interface between cell and environment. A general expression for the diffusion current of a substance across the membrane is derived, which depends on two “coefficients of permeability” rather than one. Solubility and adsorption theories of permeability are shown to be special cases of the formulas. The permeability coefficients are expressed in terms of the difference (...) of potential energy of the diffusing substance in the two phases; for a membrane of finite thickness they also involve the thickness, and the diffusion coefficient of the solute in the membrane. (shrink)

In 1965, the discovery of a new type of uniform radiation, located between radiowaves and infrared light, was accidental. Known today as Cosmic Microwave background, this diffuse radiation is commonly interpreted as a fossil light released in an early hot and dense universe and constitutes today the main ’pilar’ of the big bang cosmology. Considerable efforts have been devoted to derive fundamental cosmological parameters from the characteristics of this radiation that led to a surprising universe that is shaped by at (...) least three major unknown components: inflation, dark matter and dark energy. This is an important weakness of the present consensus cosmological model that justifies raising several questions on the CMB interpretation. Can we consider its cosmological nature as undisputable? Do other possible interpretations exist in the context of other cosmological theories or simply as a result of other physical mechanisms that could account for it? In an effort to questioning the validity of scientific hypotheses and the under-determination of theories compared to observations, we examine here the difficulties that still exist on the interpretation of this diffuse radiation and explore other proposed tracks to explain its origin. We discuss previous historical concepts of diffuse radiation before and after the CMB discovery and underline the limit of our present understanding. (shrink)

Diffusion theory explains in physical terms how materials move through a medium, e.g. water or a biological fluid. There are strong and widely acknowledged grounds for doubting the applicability of this theory in biology, although it continues to be accepted almost uncritically and taught as a basis of both biology and medicine. Our principal aim is to explore how this situation arose and has been allowed to continue seemingly unchallenged for more than 150 years. The main shortcomings of (...) class='Hi'>diffusion theory will be briefly reviewed to show that the entrenchment of this theory in the corpus of biological knowledge needs to be explained, especially as there are equally valid historical grounds for presuming that bulk fluid movement powered by the energy of cell metabolism plays a prominent note in the transport of molecules in the living body. First, the theory's evolution, notably from its origins in connection with the mechanistic materialist philosophy of mid nineteenth century physiology, is discussed. Following this, the entrenchment of the theory in twentieth century biology is analyzed in relation to three situations: the mechanism of oxygen transport between air and mammalian tissues; the structure and function of cell membranes; and the nature of the intermediary metabolism, with its implicit presumptions about the intracellular organization and the movement of molecules within it. In our final section, we consider several historically based alternatives to diffusion theory, all of which have their precursors in nineteenth and twentieth century philosophy of science. (shrink)

Transition to a sustainable energy regime is one of the key global societal challenges for the coming decades. Many technological innovations are in the pipeline, but an uncritical appraisal of anything and everything called green innovation lacks methods for testing both the necessity and the sufficiency of these developments. We propose to develop a philosophy of energy to fill this lacuna. Its task is to explore and clarify the space in which the so-called energy transition is taking (...) place. This article sketches the fundaments of such a philosophy and suggests how it might be built upon the work of twentieth century critics of the functioning of energy in society, including Mumford, Bataille, and Heidegger; but not without empirical analysis of contemporary energy systems. Via the example of flux and potentiality - two apparently opposing conceptions of energy - we propose that a philosophy of energy allows for a broader perspective on specific problems in energy transition, and illuminates implicit and problematic assumptions behind these problems. (shrink)

This paper explores space-time with the Minkowski equation, trying to integrate using the three manuscripts presented to the Open Journal of Philosophy (OJPP) a “new theory of gravity” by introducing the concept of space-time flow. Gravity is a push rather than a pull, an idea presented in the first manuscript. Gravity is the inertia, the shape (frame) of space-time produced by dark energy. The space-time surrounding you provides the force that pushes you upwards, but it doesn’t increase the diameter (...) of the Earth. The sensation of gravity is actually caused by the accelerated flow of space-time against you, which acts as a mirror. The Earth’s expansion is apparent; creates the illusion, but Earth does not expand; rather, the space-time flow emanating from the Earth generates gravity. Einstein’s theory of relativity explains that gravity results from the curvature of space-time caused by the presence of mass and the background dark energy. “Dark energy, introduced from all directions,” which exists throughout the universe in space-time, is responsible for the universe’s accelerated expansion. One way to expand space-time is through the concept of cosmic inflation, which suggests that the universe lives a continuous widening of space-time. Free fall and relativity theory support this claim. Dark energy pushes (pressure) space-time inside the atoms, and the space-time, as in a nozzle, produces an accelerated flow which is gravity. Dark energy floods the whole space and produces positive pressure. It is a non-local/ non-analytical energy, an omnipresent that pervades everything. Dark energy is a space-time property; it was first discovered in 1998. The pressure makes space-time emerge from every point of the Universe and push it expansively. Quantum physics suggests that all the energy in the Universe can form a single universal emergent system, which produces time in the present before us in 4D space-time. This is dark energy. The expansion of space-time is universal and occurs everywhere. When this expansion occurs within atoms, it produces a space-time flux, which is gravity. The general expansion produces it and counteracts it. Pushing space-time outside of Earth (Earth does not expand, just looks like it does) is this space-time flux that makes Earth coordinates move upward, to make it feel like falling into Earth. The apparent matter expansion is its complement mirror. Here, we present Gravity as accelerated space-time flow going out from massive objects. (shrink)

Partant de la rythmanalyse de Lefebvre, j’examine l’énergétique et la constitution spatio-temporelle du rythme et la manière dont cela met en évidence l’enchevêtrement polyrythmique des flux d’énergie dans la vie quotidienne, ainsi que la relation entre la techno-énergie « artificielle » des systèmes énergétiques et les échanges énergétiques « naturels » des mouvements planétaires, des systèmes écologiques et du fonctionnement des organismes (y compris humains). Je développe une compréhension thermodynamique et matérialiste de l’énergie et du rythme, afin de présenter (...) un certain nombre de propositions et d’explorer les implications pour la poursuite de stratégies de transformation à faible intensité de carbone à l’intérieur et à l’extérieur des systèmes d’énergie. (shrink)

In classical electrodynamics, it can be challenging to demonstrate the balance between minus of power of radiating particles and retarded radiation energy flux for radiation in the free-space because of the field’s singularity. In an alternative radiation theory of Wheeler–Feynman absorber theory, which is based on a first principle of time-symmetric interaction between radiating particles surrounded by the absorber at large distance, the singularity is eliminated but the balance cannot be preserved due to advanced effects. This is quantitatively (...) demonstrated with an argument of consequent non-classical light radiated by classical current. (shrink)

The aim of this article is to show how a tumor can modify energy substrates fluxes in the brain to support its own growth. To address this question we use a modeling approach to explain brain nutrient kinetics. In particular we set up a system of 17 equations for oxygen, lactate, glucose concentrations and cells number in the brain. We prove the existence and uniqueness of nonnegative solutions and give bounds on the solutions. We also provide numerical simulations.

In recent years, governments in a large number of countries have introduced so-called deployment policies to foster the diffusion of clean energy technologies. While there is little doubt that these demand-side measures have been very effective in raising the share of clean electricity generation, currently, much less is known about how deployment policies affect—and are affected by—technological innovation beyond the mere diffusion of existing technologies. Against this backdrop, this dissertation abstract and commentary presents the dissertation work of (...) Dr. Joern Hoppmann. Based on a discussion of deployment policies as a means for addressing pressing societal issues, the dissertation abstract describes four essays that provide a detailed account of the role that these policies play for technological learning in the solar photovoltaic industry. The theoretical background, methods, and main findings of each of the essays are briefly summarized. Building on this, this abstract discusses implications for managers and policy makers in terms of how to improve the design of deployment policies and navigate businesses in policy-induced markets. (shrink)

The explanation of inertia based on “Mach's principle” is briefly revisited and an experiment whereby the gravitational origin of inertia can be tested is described. The test consists of detecting a small stationary force with a sensitive force sensor. The force is presumably induced when a periodic transient Mach effect mass fluctuation is driven in high voltage, high energy density capacitors that are subjected to 50 kHz, 1.3 kV amplitude voltage signal, and threaded by an alternating magnetic flux (...) of the same frequency. An effect of the sort predicted is shown to be present in the device tested. It has the expected magnitude and depends on the relative phase of the Mach effect mass fluctuation and the alternating magnetic flux as expected. The observed effect also displays scaling behaviors that are unique to Mach effects. Other tests for spurious signals suggest that the observed effect is real. (shrink)

We study the response of switched particle detectors to static negative energy densities and negative energy fluxes. It is demonstrated how the switching leads to excitation even in the vacuum and how negative energy can lead to a suppression of this excitation. We obtain quantum inequalities on the detection similar to those obtained for the energy density by Ford and co-workers and in an ‘‘operational’’ context by Helfer. We reexamine the question ‘‘Is there a quantum equivalence (...) principle?’’ in terms of our model. Finally, we briefly address the issue of negative energy and the second law of thermodynamics. (shrink)

The Influence of turbulence on nutrient fluxes towards phytoplankton cells has been previously estimated, but those studies did not take into account the intermittent nature of turbulent processes. This has been investigated here comparing the nutrient fluxes obtained using both mean and instantaneous turbulent energy dissipation rates. This approach shows that the size of cell potentially influenced by turbulence is lower than previously indicated, and that the spectral average estimate of the turbulence effect overestimates the flux. The capacity (...) of cell to use such intermittent flux is then discussed. (shrink)

We address to the Poynting theorem for the bound electromagnetic field, and demonstrate that the standard expressions for the electromagnetic energy flux and related field momentum, in general, come into the contradiction with the relativistic transformation of four-vector of total energy–momentum. We show that this inconsistency stems from the incorrect application of Poynting theorem to a system of discrete point-like charges, when the terms of self-interaction in the product \ and bound electric field \ are generated by (...) the same source charge) are exogenously omitted. Implementing a transformation of the Poynting theorem to the form, where the terms of self-interaction are eliminated via Maxwell equations and vector calculus in a mathematically rigorous way, we obtained a novel expression for field momentum, which is fully compatible with the Lorentz transformation for total energy–momentum. The results obtained are discussed along with the novel expression for the electromagnetic energy–momentum tensor. (shrink)

This paper argues that analyses of the ways in which Big Data has been enacted in other academic disciplines can provide us with concepts that will help understand the application of Big Data to social questions. We use examples drawn from our Science and Technology Studies analyses of -omic biology and high energy physics to demonstrate the utility of three theoretical concepts: primary and secondary inscriptions, crafted and found data, and the locus of legitimate interpretation. These help us to (...) show how the histories, organisational forms, and power dynamics of a field lead to different enactments of big data. The paper suggests that these concepts can be used to help us to understand the ways in which Big Data is being enacted in the domain of the social sciences, and to outline in general terms the ways in which this enactment might be different to that which we have observed in the ‘hard’ sciences. We contend that the locus of legitimate interpretation of Big Data biology and physics is tightly delineated, found within the disciplinary institutions and cultures of these disciplines. We suggest that when using Big Data to make knowledge claims about ‘the social’ the locus of legitimate interpretation is more diffuse, with knowledge claims that are treated as being credible made from other disciplines, or even by those outside academia entirely. (shrink)

Responding to climate change and avoiding irreversible climate tipping points requires radical and drastic action by 2030. This urgency raises serious questions for energy companies, one of the world’s largest emitters of greenhouse gases (GHGs), in terms of how they frame, and reframe, their response to climate change. Despite the majority of energy companies releasing ambitious statements declaring net zero carbon ambitions, this ‘talk’ has not been matched with sufficient urgency or substantive climate action. To unpack the disconnect (...) between talk and action, this paper draws on the literature on framing, organisational hypocrisy, and collective moral responsibility. We conduct a longitudinal qualitative content analysis of the framing of climate change used by the ten largest European investor-owned energy companies and the actions they have taken to shift their business practices. Our findings reveal three main categories of energy companies: (i) deflecting, (ii) stagnating, and (iii) evolving. We show key differences in the relationship between framing and action over time for each category, revealing how deflecting companies have larger and persistent gaps between green talk and concrete action and how stagnating companies are delaying action despite increased green talk, while evolving companies exhibit a closer link between talk and action that tends to be realised over time. Our analysis reveals how competing approaches to framing collective moral responsibility help understand the trajectories of talk and action across the different categories of energy companies. This research makes several contributions to the literature on organisational hypocrisy and collective moral responsibility in the context of climate change. Our analysis highlights the complex relationship between collective moral responsibility, organisational hypocrisy and climate action, revealing how different collective framings—diffuse, teleological, or agential—can both enable and offset substantive climate action. The study also enriches our understanding of the performative nature of collective moral responsibility by examining its temporal dimensions and showing how an agential, backward-looking focus is associated with more meaningful climate action. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Rhetorical Circulation in Late CapitalismNeoliberalism and the Overdetermination of Affective EnergyCatherine ChaputIn the world we have known since the nineteenth century, a series of governmental rationalities overlap, lean on each other, challenge each other, and struggle with each other: art of government according to truth, art of government according to the rationality of the sovereign state, and art of government according to the rationality of economic agents, and more (...) generally, according to the rationality of the governed themselves. And it is all these different arts of government, all these different types of ways of calculating, rationalizing, and regulating the art of government which, overlapping with each other, broadly speaking constitute the object of political debate.Michel Foucault, The Birth of BiopoliticsCritical rhetoricians interested in the power dynamics between rhetoric and capitalism have established for themselves the ambitious task of explaining how multiple, intertwined rationalities govern individual and collective [End Page 1] behavior in relationship to the ever-shifting logics of capitalism. Approaches to this complicated directive frequently envision rhetoric as a mediating force among agentive subjects who act within well-defined political economic landscapes. Wedded to a political-communicative model wherein appropriate rhetorical choices persuade those with authority to distribute disputed political and economic rights, rhetorical theory becomes a sophisticated handbook for discovering topoi and executing decorous statements. This focus, according to Ronald Walter Greene, results in a "permanent anxiety over the meaning and potential of rhetorical agency" that positions rhetoricians as "moral entrepreneurs scolding, correcting, and encouraging the body politic" (2004, 188, 189). Committing themselves to endless debates about correct responses in situated spaces, rhetorical theories that underscore agency lose site of the world in flux and of our participation in that world's unpredictable unfoldings. Alternatively, Greene suggests rethinking rhetorical theory through a materialist-communicative model wherein the immaterial labor of communication produces value. Conceptualizing discursive practices as a form of labor rather than a form of political signification sidesteps anxiety about well-chosen language and emphasizes the life-affirming activity involved in deciphering issues, inventing paths through those issues, and communicating new ideas to others. In short, Greene's materialist model challenges critical rhetoricians to end their perennial search for a discursive key to the storehouse of political economic goods (a practice propelled by liberal democratic hopes) so that they can begin to invent analyses and modes of production better suited to the contours of contemporary neoliberalism.Unlike liberalism's clearly assigned spaces for public life and private life or work time and leisure time, neoliberal spaces bear few obvious markers. The neoliberal landscape consists of blurred boundaries that fold into one another: information flows almost instantaneously, commodities and people transgress national boundaries, time accelerates, space collapses, and distinctions between such classic demarcations as agent and subject or politics and economics erode. Facilitated by dramatic changes in our sociopolitical boundaries, economic neoliberalism, what James Arnt Aune calls "economic correctness" (2001), reigns throughout vast uneven terrains opened up from the imploded borders of our liberal world. While economics does indeed rule the neoliberal landscape, it does not do so according to uncompromising rationalism. Political and cultural practices flowing into the previously segregated spaces of economics enable market rule through logics that operate entirely outside the rational-irrational divide. Economic neoliberalism moves from situation to situation, disregarding spatial boundaries between the political, economic, [End Page 2] and cultural realms as well as their attendant modes of persuasion, wearing away at the rhetorical linkages between appropriate discursive choices and agentive power.Regardless of the particularities of neoliberalism's spaces, structures, and governing practices, many rhetoricians continue to mediate among different worldviews based on outmoded liberal gauges. Some rhetorical theorists, for instance, maintain that the problematics of neoliberalism result from an imbalance between reason and passion. Even though the most ardent supporters of neoliberal practices hold firmly to a belief in its scientific rationality, rhetorical theorists often argue that passion overpowers reason in neoliberal discourse. The rhetorical form that sustains this disequilibrium is, according to Bradford Vivian, neoliberal epideictic. Based on an impassioned identification, epideictic texts "unite an otherwise fractured citizenry in a dynamic affective experience" (Vivian 2006, 15). Epideictic rhetoric functions didactically to unite the public... (shrink)

The 3D Prandtl fluid flow through a bidirectional extending surface is analytically investigated. Cattaneo–Christov fluid model is employed to govern the heat and mass flux during fluid motion. The Prandtl fluid motion is mathematically modeled using the law of conservations of mass, momentum, and energy. The set of coupled nonlinear PDEs is converted to ODEs by employing appropriate similarity relations. The system of coupled ODEs is analytically solved using the well-established mathematical technique of HAM. The impacts of various (...) physical parameters over the fluid state variables are investigated by displaying their corresponding plots. The augmenting Prandtl parameter enhances the fluid velocity and reduces the temperature and concentration of the fluid. The momentum boundary layer boosts while the thermal boundary layer mitigates with the rising elastic parameter strength. Furthermore, the enhancing thermal relaxation parameter ) reduces the temperature distribution, whereas the augmenting concentration parameter drops the strength of the concentration profile. The increasing Prandtl parameter declines the fluid temperature while the augmenting Schmidt number drops the fluid concentration. The comparison of the HAM technique with the numerical solution shows an excellent agreement and hence ascertains the accuracy of the applied analytical technique. This work finds applications in numerous fields involving the flow of non-Newtonian fluids. (shrink)

We investigate in detail the electromagnetic fields of a uniformly accelerated charge, in order to ascertain whether such a charge does ‘emit’ radiation, especially in view of the Poynting flow computed at large distances and taken as an evidence of radiation emitted by the charge. In this context, certain important aspects of the fields need to be taken into account. First and foremost is the fact that in the case of a uniformly accelerated charge, one cannot ignore the velocity fields. (...) This then leads to other equally vital points. The net field energy turns out to be exactly the same as that of a non-accelerated charge having a uniform velocity equal to the instantaneous velocity of the uniformly accelerated charge. Further, the Poynting vector, seen with respect to the ’present’ location of the uniformly accelerated charge, during the deceleration phase, possesses everywhere a radial component pointing inward toward the charge, becoming nil when the charge becomes momentarily stationary, and during the acceleration phase, points away from the charge position. Last, but not least, when the leading spherical front of the relativistically beamed Poynting flux, advances forward at a large time t to a far-off distance \, the charge too is not lagging far behind. In fact, these relativistically beamed fields, increasingly resemble fields of a charge moving in an inertial frame with a uniform velocity \, with a convective flow of fields in that frame along with the movement of the charge. There is no other Poynting flow in the far-zones that could be termed as radiation emitted by the charge which, in turn, is fully consistent with the absence of radiation reaction and is also fully conversant with the strong principle of equivalence. (shrink)

The mathematical dynamic model of oxidative phosphorylation in muscle mitochondria developed previously was used to calculate the flux control coefficients of particular steps of this process in isolated mitochondria at different amounts of hexokinase and oxygen concentrations. The pattern of control was completely different under different conditions. For normoxic concentration, the main controlling steps in state 4, state 3.5 and state 3 were proton leak, ATP usage (hexokinase) and complex III, respectively. The pattern of control in state 4 was (...) not changed at hypoxic oxygen concentration, while in state 3.5 and state 3 much of the control was shifted from other steps to cytochrome oxidase. The implications of the theoretical results obtained for the regulation of oxidative phosphorylation in intact muscle are discussed. (shrink)

Kierkegaard's "absolute paradox" was born in his critique of Hegel's absolute reconciliation between faith and knowledge and bears the scars of his desperate struggle between atheism and the belief in the God of Abraham. In Kierkegaard's critique of Hegel's reconciliation it became evident that there are two basic possibilities in interpreting religious experience: gnosticism and pisticism. Paul, Augustine, Luther, Kant, Kierkegaard and Karl Barth represent the pistic interpretation of religion. They are "pistics" who protest against man's gnostic hubris and try (...) to expose his illusion about a cognitive way of archetypal knowledge. The paradox of faith implies a sola fide which can never be turned into a general and universal method. But theology is stronger than faith! It turns even the paradox of faith into a method relating the way of paradox to the classical ways of theology, the method of negation and analogy. The paradox of faith is thereby taken out of its context, its energy diffused and its motif turned into a general argument for apologetic theology. (shrink)

This chapter explores Lyotard’s aesthetics in relation to the artist Yves Klein. Through the different activities of philosophy and art, Lyotard and Klein both explore the nature of sensibilité through an investigation of matter. Both paradoxically conclude that matter is in a sense immaterial. Lyotard understands matter as that part of an artwork which is diverse, unstable, and evanescent: in music, this corresponds to nuance and timbre, and in painting, to colour. Following Kant’s aesthetics, Lyotard interprets matter as that which (...) defies conceptual grasp or rational calculation. From the point of view of the concept, then, matter appears as immaterial – it is nothing at all. Klein develops his meditation on matter firstly through his monochrome “propositions,” calling attention to pure colour (in particular, blue), which he theorises as stabilisations of energy. Beyond this, Klein invents “immaterial” works, such as the famous Void exhibition (an empty room in a gallery), and his Zones of Immaterial Pictorial Sensibility. Klein understands these immaterial works as presenting matter in its “prime state,” as energy diffused in space. This chapter develops the confluences between Lyotard’s and Klein’s reflections on “immaterial matter,” and seeks to show how the results achieved in each area of activity (philosophy and art) can contribute to the other. Lyotard’s aesthetic theory provides the basis for a new interpretation of Klein which provides an alternative to his common reception as a Conceptual artist. Klein’s work, on the other hand, not only acts as a profound example of Lyotard’s theory, but functions as a corrective to Lyotard’s emphasis on the negative and privative nature of sensitivity to matter by demonstrating the creative and life-affirmative potential of such sensitivity. (shrink)

The diffusion of codes is an important processing technology for big data networks. In previous scheme, data analysis was conducted for small samples of big data and complex problems that cannot be processed by big data technology. Due to the limited capacity of intelligence device, a better method is to select a set of nodes to form a connected dominating set to save energy, and constructing CDS is proved to be a complete NP problem. However, it is a (...) challenge to reduce the communication delay and complexity for urgent data transmission in big data. In this paper, an appropriate duty cycle control scheme is proposed to reduce communication delay and complexity while improving energy efficient in CDS-based WSNs. In ADCC scheme, the method for constructing CDS is proposed at lower complexity. Nodes in CDS are selected according to the degree of nodes. Then, duty cycle of dominator nodes in CDS is higher than that of dominated nodes, so the communication delay in the proposed scheme is far less than that of previous scheme. The duty cycle of dominated nodes is small to save energy. This is because the number of dominator nodes in CDS is far less than the number of dominated nodes whose duty cycle is small; thus, the total energy consumption of the network is less than that of the previous scheme. As a result, the performance of energy consumption and communication delay and complex have been improved. Its complexity O∑i=0vm−i+2m−2v−s is reduced a lot for big data. The theoretical analysis shows that compared to the previous scheme, the transmission delay can be reduced 25–92% and the energy efficiency is improved by about 80% while retaining network lifetime. (shrink)

Generating energy by renewable sources like wind, sun or water has led to the emergence of “clean” energy that is generally available at low cost to the environment and is generated from seemingly unbounded resources. Many countries have implemented schemes to support the diffusion of renewable energies. The diffusion of micro-generation technologies like roof-top photovoltaics is one of the success stories within the energy transition and has been significantly driven—at least in countries such as Germany—by (...) households. As these households usually not only generate energy but also consume it they are often called “prosumers.” How does it influence the energy behavior of households if they become prosumers? Are these behavioral changes in line with further goals of the energy transition, e.g., reducing demand? What shapes individual behaviors of prosumers? The paper introduces a conceptual framework based on the existing literature on rebound and spillover effects. It systematizes possible behavioral consequences as well as mechanisms behind them. This framework is then used to code and analyze data from 48 in-depth interviews with prosumer households. These interviews reveal a broad variety of behavioral responses which have their roots in economic conditions and their evaluation by the prosumers, psychological mechanisms like central guiding principles and a clear conscience as well as sociotechnical context and legislative frameworks. (shrink)

Wavefunction collapse models modify Schrödinger's equation so that it describes the rapid evolution of a superposition of macroscopically distinguishable states to one of them. This provides a phenomenological basis for a physical resolution to the so-called “measurement problem.” Such models have experimentally testable differences from standard quantum theory. The most well developed such model at present is the Continuous Spontaneous Localization (CSL) model in which a universal fluctuating classical field interacts with particles to cause collapse. One “side effect” of this (...) interaction is that the field imparts energy to the particles: experimental evidence on this has led to restrictions on the parameters of the model, suggesting that the coupling of the classical field to the particles must be mass-proportional. Another “side effect” is that the field imparts momentum to particles, causing a small blob of matter to undergo random walk. Here we explore this in order to supply predictions which could be experimentally tested. We examine the translational diffusion of a sphere and a disc, and the rotational diffusion of a disc, according to CSL. For example, we find that the rms distance an isolated 10−5 cm radius sphere diffuses is ≈(its diameter, 5 cm) in (20 sec, a day), and that a disc of radius 2 ⋅ 10−5 cm and thickness 0.5 ⋅ 10−5 cm diffuses through 2πrad in about 70 sec (this assumes the “standard” CSL parameter values). The comparable rms diffusions of standard quantum theory are smaller than these by a factor 10−3±1. It is shown that the CSL diffusion in air at STP is much reduced and, indeed, is swamped by the ordinary Brownian motion. It is also shown that the sphere's diffusion in a thermal radiation bath at room temperature is comparable to the CSL diffusion, but is utterly negligible at liquid He temperature. Thus, in order to observe CSL diffusion, the pressure and temperature must be low. At the low reported pressure of 5 ⋅ 10−17 Torr, achieved at 4.2°K, the mean time between air molecule collisions with the (sphere, disc) is ≈(80, 45)min. This is ample time for observation of the putative CSL diffusion with the standard parameters and, it is pointed out, with any parameters in the range over which the theory may be considered viable. This encourages consideration of how such an experiment may actually be performed, and the paper closes with some thoughts on this subject. (shrink)

In this paper we pay attention to the inconsistency in the derivation of the symmetric electromagnetic energy–momentum tensor for a system of charged particles from its canonical form, when the homogeneous Maxwell’s equations are applied to the symmetrizing gauge transformation, while the non-homogeneous Maxwell’s equations are used to obtain the motional equation. Applying the appropriate non-homogeneous Maxwell’s equations to both operations, we obtained an additional symmetric term in the tensor, named as “compensating term”. Analyzing the structure of this “compensating (...) term”, we suggested a method of “gauge renormalization”, which allows transforming the divergent terms of classical electrodynamics (infinite self-force, self-energy and self-momentum) to converging integrals. The motional equation obtained for a non-radiating charged particle does not contain its self-force, and the mass parameter includes the sum of mechanical and electromagnetic masses. The motional equation for a radiating particle also contains the sum of mechanical and electromagnetic masses, and does not yield any “runaway solutions”. It has been shown that the energy flux in a free electromagnetic field is guided by the Poynting vector, whereas the energy flux in a bound EM field is described by the generalized Umov’s vector, defined in the paper. The problem of electromagnetic momentum is also examined. (shrink)

One persistent puzzle in the life sciences is the asymmetric lipid composition of the cellular plasma membrane: while the exoplasmic leaflet is enriched in lipids carrying predominantly saturated fatty acids, the cytoplasmic leaflet hosts preferentially lipids with (poly‐)unsaturated fatty acids. Given the high energy requirements necessary for cells to maintain this asymmetry, the question naturally arises regarding its inherent benefits. In this paper, we propose asymmetry to represent a potential solution for harmonizing two conflicting requirements for the plasma membrane: (...) first, the need to build a barrier for the uncontrolled influx or efflux of substances; and second, the need to form a fluid and dynamic two‐dimensional substrate for signaling processes. We hence view here the plasma membrane as a composite material, where the exoplasmic leaflet is mainly responsible for the functional integrity of the barrier and the cytoplasmic leaflet for fluidity. We reinforce the validity of the proposed mechanism by presenting quantitative data from the literature, along with multiple examples that bolster our model. (shrink)

Fatty acids (FAs) are well known to serve as substrates for reactions that provide cells with membranes and energy. In contrast to these metabolic reactions, the physiological importance of FAs themselves known as free FAs (FFAs) in cells remains obscure. Since accumulation of FFAs in cells is toxic, cells must develop mechanisms to detoxify FFAs. One such mechanism is to sequester free polyunsaturated FAs (PUFAs) into a droplet‐like structure assembled by Fas‐Associated Factor 1 (FAF1), a cytosolic protein. This sequestration (...) limits access of PUFAs to Fe2+, thereby preventing Fe2+‐catalyzed PUFA peroxidation. Consequently, assembly of the FAF1‐FFA complex is critical to protect cells from ferroptosis, a cell death pathway triggered by PUFA peroxidation. The observations that free PUFAs in cytosol are not randomly diffused but rather sequestered into a membraneless complex should open new directions to explore signaling pathways by which FFAs regulate cellular physiology. (shrink)

The complex-systems approach to cognitive science seeks to move beyond the formalism of information exchange and to situate cognition within the broader formalism of energy flow. Changes in cognitive performance exhibit a fractal (i.e., power-law) relationship between size and time scale. These fractal fluctuations reflect the flow of energy at all scales governing cognition. Information transfer, as traditionally understood in the cognitive sciences, may be a subset of this multiscale energy flow. The cognitive system exhibits not just (...) a single power-law relationship between fluctuation size and time scale but actually exhibits many power-law relationships, whether over time or space. This change in fractal scaling, that is, multifractality, provides new insights into changes in energy flow through the cognitive system. We survey recent findings demonstrating the role of multifractality in (a) understanding atypical developmental outcomes, and (b) predicting cognitive change. We propose that multifractality provides insights into energy flows driving the emergence of cognitive structure. (shrink)

continent. 1.1 (2011): 22-25. The Author gratefully acknowledges the financial support of CAPES (Coordenação de Aperfeiçoamento do Ensino Superior), Brazil. From the multifarious subdivisions of semiotics, be they naturalistic or culturalistic, the realm of semiotics of value is a ?eld that is getting more and more attention these days. Our entire political and economic systems are based upon structures of symbolic representation that many times seem not only to embody monetary value but also to determine it. The connection between monetary (...) and linguistic exchanges is self-evident: the former requires the latter and develops in direct relation to it. Creative experimentation and design of digital systems of value exchange are blossoming on the web. Dr. Gilson Schwartz, an economist turned media theorist and professor at the University of São Paulo, adopted the concept of Iconomics, originally created by Michael Kaplan, an author concerned with the linguistics of economic value. Empowering local communities and unlocking new levels of value creation and representation via digital technologies are the main goals of Dr. Schwartz’s projects, aiming at the re-designing of our relationship to the economic value of imagination and the social control of property. Schwartz is Assistant Professor at the School of Communication and Arts of the University of São Paulo, a former Chief Economist at BankBoston, Brazil and Advisor to the President of the National Social and Economic Development Bank (BNDES). FURTHER READING: Kaplan, Michael. “Iconomics: The Rhetoric of Speculation.” Public Culture . 15.3 (2003): 477-493. Renata Lemos-Morais: You have recently produced and directed a short documentary about Creative Currencies in Latin America. Could you tell us a bit about its process and its findings? Gilson Schwartz: The “Creative Currencies” project is a work-in-progress platform which unfolds as an action research agenda connected both to the production of audiovisual content and the development of social currency software. The initiative dates back to 2003 when I led an experimental project supported by the Presidency of Brazil. At that time, we issued paper currency in a small, touristic village in the Northeast Region which stimulated local cultural projects. But it was only in 2009 that the Central Bank of Brazil acknowledged “social currencies” as a legitimate economic agenda, calling for more debate at the I Financial Inclusion Forum. This year, the monetary authorities organized a second forum that also opened the room to discussions on mobile payment systems and new perspectives on poverty alleviation via State subsidies. The Ministry of Culture funded the “Creative Currencies” project in 2009-2010 and our next stage in this discovery process is to be supported by the National Social and Economic Development Bank (BNDES). In short, there is genuine interest among public officials in different areas and public funding for social currencies is on the rise in Brazil. However, after all these years we are still at a very early stage of research and practice. Some of the most successful initiatives (such as Banco Palmas) actually evolved out of local monetary creation to become correspondent banking operations for commercial banks and other financial groups. After eight years of price stability and social inclusion, Brazil stands out as a major opportunity for social experimentation, even the Grameen Bank is now entering the Brazilian market and many NGOs are geared towards different forms of entrepreneurialism in the base of the pyramid, riding solidarity economic models, microfinance and microcredit for local development. It is yet to be seen, however, whether these developments are just one more stage of “bankarization”, that is to say, an extension of regular banking services or actually a new form of social and symbolic self-determination at the local level. So far, the Central Bank of Brazil is open to new forms of credit and local finance as long as they are strictly territorial and very close to barter among the poor. In other words, whether the process of monetary creation could be made to fit an open source paradigm is yet to be seen. Community banking and social currencies might as well end up as just another channel for access to and use of banking services. The “Creative Currencies” project aims at promoting the discussion of more fundamental issues, such as the limits of central banking, the prospects for local financial development and the possibility of creating and managing financial icons as cultural assets. The purpose of this project is to produce short documentaries that will bear testimony to this evolving regulatory framework while inducing more discussion about the fundamental iconomic issues concealed in the process of money and wealth creation. RLM: What new potential is there in applying digital technologies to currency creation? GS: Globalization is a result of the virtualization of money, that is, the overcoming of illusions such as the “gold standard”. Money is an icon created by institutions, not on supposedly natural or material foundations but out of political and financial interests. The “dollar standard” is an outstanding evidence of this phenomenon and Kaplan´s paper, the first to use the expression “iconomics”, insists on the rhetoric and semiotic effects associated to a supposedly scientific model of money creation and management. This is a fundamental change that was perceived and discussed much before the digitalization of the world by unorthodox economists such as John Maynard Keynes since the early 20th century. The digitalization of global financial flows accelerated this immateriality and the creation of the Euro was yet another evidence of the political foundations of currencies. The banking establishment, however, is keen on the idea that scientific formulae hold the key to sound money creation. Keynesianism has been repeatedly associated to “inflationism” while the supposedly sound monetary policies of the Orthodoxy serve well the political and financial interests of a technocratic elite. Corporate media also serve this fictitious depiction of the monetary process despite the cyclical bust of monetary rules and financial regulations. The internet, however, has created numerous opportunities for the disintermediation in industries such as film, music and commodities. There is no reason to doubt that the financial industry can also be transformed by Peer-to-Peer (P2P) infrastructures. Money is media as well. Credit is but confidence. Once people realize that the distributed computing power of networks can also be the platform to weave new monetary and credit operations, there is room for grassroots emancipation out of the established owners of monetary institutions. So far, however, there has been a privatization of monetary management and there is not a clear path or model for the emergent (P2P) property democratization that is inherent to the internet. Digital assets, however, clearly have an inherent potential to escape central control and proprietary regulatory frameworks. RLM: How are social networks transforming the ways in which we exchange value? Do you believe that online influence and reputation might be translated into a new kind of currency? GS: The foundation for social currencies as envisaged by solidarity economics is the territory. Authorities are willing to concede local monetary creation as long as it is restricted to poor neighborhoods, as a proxy to barter. In this relevant but limited context, reputation, personal knowledge and informal ties form the matrix of local or “proximity” finance which are expected to keep credit and leverage to a sustainable level. Anything beyond that should and would lead to an integration of local finance into the established banking system. However, inasmuch as the internet promotes virtual territories and reputation is now subject to all sorts of digital manipulation and stardom becomes an everyday cultural process among teenagers and elders alike, the territorial “foundation” is substituted for more complex patterns of solidarity, cooperation and exchange that reach beyond the physical territory and even the “human.” Digital assets embody knowledge, technology, cultural and educational values that are exchanged at a global scale beyond the control of democratic States (Chinese-like intervention is the exception, not the rule). Hacktivism is unstoppable and so is monetary hacktivism. Especially in the Third World, mobile communications fast became conveyors of money transfers and other appropriation strategies. Banking and telecom sectors already battle for the control of these emerging markets and, as a matter of fact, have so far contributed to the containment of these processes. Governments serve these moguls and have usually adopted a wait-and-see attitude. If open source hardware and grassroots social movements combine to challenge these proprietary battles, then social networks may evolve into new forms of social capital and thus form the ground on which to design and implement social currencies. The global financial crisis, as well as the dollar demise, are an event of such a proportion that social networks may open the path for emancipator subjects to seize the opportunity. RLM: What are some of the social experiments that you think are revolutionizing the way in which value is exchanged? GS: There is a broad evolution of economic systems towards the valuation of intangible assets such as knowledge, reputation and sustainability. There are many examples of local as well as global events that call the traditional systems of exchange into question, from carbon credits to educational bonuses, digital barter frameworks and locally based solidarity and fair trade networks. These emerging examples, no matter how different in nature or scale, represent a challenge to the traditional value creation schemes and theories which are based on use and exchange value, supply and demand. This is not to say that utility and labour or scarcity are to be totally dismissed, but there is now an emerging perception that value is also a function of behavioral codes, symbolic patterns and the energy of institutional frameworks. The plasticity of digital platforms is relevant insofar as intellectual property becomes the central source of value creation. But when you discuss the property rights of public goods such as the environment or basic social rights (of minorities or localities), then a new paradigm seems to emerge. RLM: Are gaming and online storytelling digital practices that might have an impact on the way new currencies are created and developed? GS: “Play money” has been one of the early and most intriguing phenomena associated to the diffusion of virtual worlds. These virtual currencies have also been prone to “boom and bust” dynamics, speculation and pure theft (Second Life scams were common and led to “intervention” by the owners of the game). Storytelling is a major source of value, that is, the value of attention and the markets for audience. There are plenty of private monies created and managed by corporate entertainment groups, telecom operators (via mobile virtual network operators) and marketing frameworks. The casino economy, as already depicted by Keynes and other unorthodox economists, is always storytelling about future states of the world, confidence building and leverage of animal spirits. The novelty of current events is not the fictitious nature of any form of capital, but the potential for digital democratization of controls over the imaginary nature of value creation. But this is just a potential, a possibility, a figment that more often than not is appropriated by centralized and opaque private powers. The game industry is a testbed for new connections between storytelling and money creation. RLM: Monetary value was originally connected to the scarcity of precious metals, such as gold. Our entire monetary system seems therefore to function according to a logic of scarcity. Do you believe it is possible to reverse this logic into a logic of abundance? GS: The gold standard was a fiction itself, the “scarcity” is always produced by institutions that regulate confidence and access to credit. The key issue is not to fabricate abundance, but to question the institutions which produce scarcity out of any standard, gold or whatever. Central banks are at the service of private banks in the creation and management of scarcity. RLM: The promise that nanotechnology holds for our future is one of radical abundance (or so say transhumanists). The possibility of creating any kind of material substance through nanoengineering seems each day more feasible. What would this possibility entail in terms of systems of value exchange? GS: Nanotechnology, environmental concerns and grassroots appropriation of distributed knowledge are the frontiers of a new horizon of energy creation and management. Social groups in charge of managing scarcity for the sake of wealth and power concentration must be held accountable for the destruction of our future. Once this key political conundrum is accounted for, new systems of value exchange and even a non-mercantile society will come into existence. Revolutionary theorists such as Marx envisaged transformation via the extreme clash of contradictions between capital and labour. This approach has never led to a change in the systemic logic of scarcity for the sake of social control. We are once again facing the threshold of large scale societal change, but the outcome of the current crisis should come from our imagination, not from yet another paradox of abundance and scarcity. As long as we remain attached to the materiality of value, the illusion of freedom will but reinforce the massive manipulation of necessity. RLM: What do you think is the role of crowdfunding in this context? GS: Crowdsourcing as well as crowdfunding are examples of the peer to peer opportunities that come along with distributed computer power. However, the power structure behind wealth and scarcity creation may or may not be changed by crowd management. But it should not be taken at face value, so to speak. The stock market of course is an early form of crowdfunding without calling into question the proprietary framework of the companies offering their investment projects to the market. Any market is a form of crowdsourcing, that is to say, of distributed forms of supply and demand matchmaking. The wealth of networks, however, depends on the contractual ecosystem, the institutional framework, the channeling of social imagination, not on the purely quantitative distribution of bids and offers. I see economics as supply, demand and code. Once you have access to the code, once openness becomes part of the game, then there is a chance of crowd behavior becoming collective intelligence and sustainable imagination. RLM: Is the development of digital currencies headed towards a pluralistic ecology in which many micro currency systems co-exist, or is it penetrating the mainstream monetary system? If it is affecting the mainstream financial system, what would be its effect in the long-term? GS: The same issue is at stake both at local and global levels. The global system is, as a matter of fact, an unstable ecosystem of “micro currencies” whereas the dollar has so far exerted an overwhelming influence. Local currencies and private monies coexist with national currencies only to the extent that the Central Bank admits, for instance, that grassroots monetary emissions remain territorial and strictly connected to poverty. However, the question of how new developments in digital technologies and nanotechnologies might alter not only our current monetary systems but also our understanding of value in itself, is still an open question. (shrink)

The increasing global demand for energy necessitates devoted attention to the formulation and exploration of mechanisms of thermal heat exchangers to explore and save heat energy. Thus, innovative thermal transport fluids require to boost thermal conductivity and heat flow features to upsurge convection heat rate, and nanofluids have been effectively employed as standard heat transfer fluids. With such intention, herein, we formulated and developed the constitutive flow laws by utilizing the Rossland diffusion approximation and Stephen’s law along (...) with the MHD effect. The mathematical formulation is based on boundary layer theory pioneered by Prandtl. Governing nonlinear partial differential flow equations are changed to ODEs via the implementation of the similarity variables. A well-known computational algorithm BVPh2 has been utilized for the solution of the nonlinear system of ODEs. The consequence of innumerable physical parameters on flow field, thermal distribution, and solutal field, such as magnetic field, Lewis number, velocity parameter, Prandtl number, drag force, Nusselt number, and Sherwood number, is plotted via graphs. Finally, numerical consequences are compared with the homotopic solution as a limiting case, and an exceptional agreement is found. (shrink)

Morphogenetic fields of thought, flux and transformation, energy and light are the manifestations that inform a new sensibility for creating realities and exploring the world. We are seeing the emergence of a new moistmedia culture and the possibilities of a syncretic art that combines aspects of a vast transdisciplinary field. Historically, syncretism has destabilized political and religious orthodoxies, reconciling and harmonizing formerly discrete antagonists; its etymology derives from the coming together of opposed tribes to resist a common enemy. (...) In contemporary culture, the enemy is habit - the uncritical repetition of behaviours, perceptions, categories and values. Just as cybernetics analogizes differences between systems, so syncretism finds likeness between unlike things. If cybernetics underlies the technology of new media art, syncretism informs the psyche. In the context of telematics, it is a matter of heuristics and heteronymia. The digital moment in art is passing as it approaches the status of orthodoxy; the period of discovery through extreme speculation, invention and untrammelled creativity is in danger of giving way to academicism and commercialization, whether in cyberspace, on the Web or through the mobile. Art's twentieth-century preoccupation with the body is giving way to the technoetic exploration of new territories of mind. This may involve revisiting the pathways to personal transformation and transcendence of older cultures, where the syncretism of knowledge and beliefs, as for example in Brazil, is explicit. Art needs to adopt syncretic strategies to embrace emerging models of mind and matter, cyberception, living process and computational systems, moist-media, quantum reality, the nanofield, and ecological, social and spiritual issues. This may lead to significant changes in the way we regard our own identity, our relationship to others, the nature of memory, the exploration of consciousness, and the phenomenology of time and space. (shrink)

The prospects for a complete stochastic theory of microscopic phenomena are considered. The two traditional schools of stochastic physics, the diffusion process school and the zero-point electromagnetic field school, are reviewed. A completely relativistic theory, stochastic field theory, is proposed as an extension of the ideas of these two schools. Within the context of stochastic field theory we present the following new results: an elementary stochastization scheme which produces the zero-point electromagnetic field; a physical interpretation of the mathematical methods (...) developed by Lukosz for calculating zero-point energies; a calculation of the first-order Lamb shift which generalizes that of Welton; a new setting for a finite-temperature theory; and comments on the bag model for quark confinement. (shrink)

This paper briefly reviews the papers in this special section of HCA and makes the point—a point which should be obvious—that statistics are useful only as guidelines but tell one nothing about the individual patient in front of you. Chronological age merely shows what is true of most but decidedly not of all patients in a particular age group. To ration on the basis of age alone is unfair to the individual denied treatment and damaging to the community because it (...) disturbs the solidarity which comes about because most members of the community feel that the community has obligations beyond those of not directly harming them; indeed, what produces solidarity is the feeling that members of a community will do their best to come to each others help. Rationing on the basis of age alone denies people of equal treatment under the law and—when it comes to the elderly—is a type of age discrimination. It is pointed out that what matters is a patient’s disease and not his/her age. A permanently vegetative person 8 years of age is a much sadder occurrence than it would be at age 90—but the critical fact is that both are permanently vegetative. Age cuts both ways—it is irrational to spend hundreds of thousands of dollars, untold amounts of time, energy and devotion to the 520 gm infant with a gr IV diffuse haemorrhage whose chance of leading a sentient life is close to zero and to hesitate before using a diagnostic MRI on a patient who is 90 but fully alert and enjoying life. It is concluded that age as an independent variable in the allocation of resources is ethically highly problematic. (shrink)

As policy innovation is essential for upscaling responsible innovation, understanding its relationship to value change(s) occurring or sought in sociotechnical systems is imperative. In this study, we ask: what are the different types of values in the policy process? And, how does value change influence policy innovation? We propose a disaggregation of values and value change based on a four-stream variant of the multiple streams framework (MSF), a conceptual lens increasingly used for explaining policy innovation in sociotechnical transitions. Specifically, we (...) posit that the values that ‘govern’ problem framing, policy design, political decision making, and technological diffusion can evolve relatively independently, potentially leading to value conflict. We apply this framework to the ongoing case of the market-based economic dispatch of electricity (MBED) policy in the Indian energy transition using content analysis. We find that the MBED scheme—with its emphasis on efficiency (problem), economic principles (policy), low-cost dispatch (technology), and centralization (politics)—attempts value change in each stream. Each instance of value change is, however, widely contested, with the ensuing value conflicts resulting in significant opposition to this policy innovation. We conclude that a disaggregation of values based on the MSF can facilitate an analysis of value change and value conflict in sociotechnical transitions and lay the foundation for systematically studying the relationships among technological change, value change, and policy change. (shrink)

The rigid recoil of a crystal is the accepted mechanism for the Mössbauer effect. It’s at odds with the special theory of relativity which does not allow perfectly rigid bodies. The standard model of particle physics which includes QED should not allow any signals to be transmitted faster than the speed of light. If perturbation theory can be used, then the X-ray emitted in a Mössbauer decay must come from a single nuclear decay vertex at which the 4-momentum is exactly (...) conserved in a Feynman diagram. Then the 4-momentum of the final state Mössbauer nucleus must be slightly off the mass shell. This off-shell behavior would be followed by subsequent diffusion of momentum throughout the crystal to bring the nucleus back onto the mass shell and the crystal to a final relaxed state in which it moves rigidly with the appropriate recoil velocity. This mechanism explains the Mössbauer effect at the microscopic level and reconciles it with relativity. Because off-mass-shell quantum mechanics is required, the on-mass-shell theories developed originally for the Mössbauer effect are inadequate. Another possibility is that that the recoil response involves a non-perturbative effect in the standard model which could allow for a non-local instantaneous momentum transfer between the crystal and the decay, as proposed for example by Preparata and others in super-radiance theory. The recoil time of the crystal is probably not instantaneous, and if it could be measured, one could distinguish between various theories. An experiment is proposed in this paper to measure this time. The idea is to measure the total energy radiated due to bremsstrahlung from a charged Mössbauer crystal which has experienced a recoil. Using Larmor’s formula, along with corrections to it, allows one to design an experiment. The favored idea is to use many small nano-spheres of Mössbauer-active metals, whose outer surfaces are charged. The energy radiated then varies as the charge squared divided by the recoil time. This can then be measured with the extreme sensitivity available in Mössbauer experiments. If it turns out that experiments prove the need for off-mass-shell theory, then this would have profound implications for all of condensed matter physics. It would mean that an off-mass-shell theory like those considered by Stueckelberg, Horwitz, Piron, Greenberger, and many others are required to describe nature. The inclusion of these would be a major shift in the foundations. It would mean that there are new dynamic variables—the rest masses of particles. The ability to measure the diffusion relaxation time should prove useful also in chemical analysis, and provide a new class of analytical methods for material science. This problem is also interesting because the Mössbauer effect is a phenomenon where the solid-state environment dramatically and indisputably influences the probability of a nuclear process. (shrink)

Il faudrait que le dialogue se fasse, non pas entre des personnes, mais entre les lignes, entre des chapitres ou des parties de chapitre. Ce seraient les vrais personnages. Perdre la mémoire : il faudrait plutôt dresser des " blocs ", les faire flotter. Un bloc d'enfance n'est pas un souvenir d'enfant. Un bloc nous accompagne, est toujours anonyme et contemporain, et fonctionne dans le présent - Oublier l'histoire : la question des devenirs, et de leur géographie. Un devenir-révolutionnaire est (...) plus important que l'avenir ou le passé de la révolution. Un devenir-femme, un devenir-animal sont plus importants que la différence des sexes et des règnes - Ne pas " faire le point " : plutôt tracer des lignes. Les lignes n'ont pas d'origine, et poussent par le milieu. On ne fait jamais table rase, on est toujours au milieu de quelque chose, comme l'herbe. Plus on prend le monde là où il est, plus on a de chance de le changer... Se séparer de l'appareil d'Etat et de tout système qui le prend pour modèle ou veut le conquérir : la présence diffuse de machines de guerre irréductibles au modèle d'Etat, toute une histoire populaire qui n'a pas été recueillie, un nomadisme même immobile. Devenir ou re-devenir marxiste : aucune analyse n'est possible si elle ne porte aussi sur les mécanismes industriels et surtout financiers dans un champ social. Non pas suprême instance, mais lignes, et régimes de signes, qui s'enchaînent avec les autres, et dont les flottaisons s'agencent avec d'autres flux. (shrink)

Texts and textures: approaching an age of human-made nature through the particulate, the volatile, and the radiant. We have entered the Anthropocene era—a geological age of our own making, in which what we have understood to be nature is made by man. We need a new way to understand the dynamics of a new epoch. These volumes offer writings that approach the Anthropocene through the perspectives of grain, vapor, and ray—the particulate, the volatile, and the radiant. The first three volumes—each (...) devoted to one of the three textures—offer a series of paired texts, with contemporary writers responding to historic writings. A fourth volume offers a guide to the project as a whole. Grain: Granular materials add up to concrete forms; insignificant specks accumulate into complex entities. The texts in this volume narrate some of the fundamental qualities of the granular. In one pairing of texts, Robert Smithson compares the accumulation of thoughts to the aggregation of sediment, and an environmental historian writes about the stakes for earthly knowledge today. Other authors include Alfred Russel Wallace, Denis Diderot, and Georges Bataille. Vapor: The vaporous represents matter's transformations. In this volume, a political scientist compares Kafka's haunting “Odradek” to “vibrant matter”; a media theorist responds to poems and diagrams by Buckminster Fuller; and more, including texts by Hippocrates, Italo Calvino, and James Clerk Maxwell. Ray: A ray is an act of propagation and diffusion, encompassing a chain of interdependencies between energy and matter. This volume includes texts by Spinoza (with a reconceptualization by a contemporary philosopher), Jacques Lacan (followed by an anthropologist's reflections on temporality), Thomas Pynchon (accompanied by an interpretation of Pynchon's “electro-mysticism”), and others. These volumes constitute a unique experiment in design and composition as well as content. The mingling of texts and the juxtaposition of different areas of knowledge represented in a variety of forms express the dynamics of a world in change. (shrink)

The problem of synthesis in biology may have reference to the evolutionary origin of living organisms in past time, a process not directly observable but conceivably reconstructible in broad outline: thus to the biochemist this evolution may appear as the evolution of the special biological compounds, to the psychologist as the evolution of “mind”—or at least of types of behavior. Or the problem may refer to the synthesis of the individual animal or plant, a process of construction which typically starts (...) from a detached portion of a parent organism, such as an egg or seed; this is the problem of individual development or ontogeny and is not essentially different from the general problem of growth. But it is clear that the processes of phyletic evolution and of ontogeny must be considered together, since evolutionary history is in reality the history of a succession of individual organisms, each developing from its germ, i.e. of ontogenies; and the ontogenetic process, so faithfully repeated in each individual as it comes into existence, is itself a product of evolution, having originated in the remote past. The succession of individuals has undergone progressive diversification, culminating in the present condition. We may describe our problem, then, as the problem of the factors underlying the synthesis of a highly special process, that by which the diffusely distributed nonliving materials and energies of nature are brought together in a special kind of unification and transformed into a living organism. (shrink)