Tootfinder

Millions of small coffee growers vs. central monitoring from 7000 km away: a classic #commons governance story?
https://www.theguardian.com/global-de…

This take on solar power is correct. And the same reasoning applies to batteries, which if anything are dropping in price even faster than PVs (it’s a less mature industry). https://caseyhandmer.wordpress.com/2023/10/11/radical-energy-abundance/

Radical Energy Abundance
Originally published at Roots of Progress, based on this thread. Everyone knows the industrial revolution occurred centuries ago and involved steam engines. That was just the warm up. We are now a …

"New illegal logging threatens Liberia’s forests amid vague ban"
#Liberia #Trees #Logging

New illegal logging threatens Liberia’s forests amid vague ban
MONROVIA — Chainsaw-milled timber is emerging as a damaging new form of illegal logging in Liberia. Chainsaw milling is legally permitted only for small-scale production of boards for the country’s domestic market, but larger operators may be using it as a means to evade regulations governing the sourcing and tracing of wood, and to avoid […]

@… But over the years, I’ve come to appreciate that it’s possible to distinguish between the ideals, the workers owning the means of production and not being beholden to a ruling class, and the realities of what communism looked like for our ancestors.
I still would never use that label, but I’m sympathetic to the cause. And I don’t think it’s as cle…

Pair production in rotating electric fields via quantum kinetic equations: Resolving helicity states
I. A. Aleksandrov, A. Kudlis
https://arxiv.org/abs/2404.02878

Pair production in rotating electric fields via quantum kinetic equations: Resolving helicity states
We investigate the phenomenon of electron-positron pair production from vacuum in the presence of a strong electric field of circular polarization. By means of a nonperturbative approach based on the quantum kinetic equations (QKEs), we numerically calculate helicity-resolved momentum distributions of the particles produced and analyze the corresponding helicity asymmetry. It is demonstrated that the external rotating field tends to generate left-handed and right-handed particles traveling in o…

♻️ By-Product Valorization as a Means for the Brewing Industry to Move toward a Circular Bioeconomy
#sustainability

By-Product Valorization as a Means for the Brewing Industry to Move toward a Circular Bioeconomy
Beer production consumes significant amounts of water, energy, and raw materials, and results in the production of various by-products, including wastewater, brewers’ spent grain, yeast and hop. To lower its environmental footprint, by-products may be reclaimed or valorized in agro-food, cosmetic, material, chemical industries, etc. According to most recent research, breweries have the potential to become biorefineries, as they can extract diverse valuable plant-based compounds such as carboh…

The folks at #Macrodose are talking perfectly seriously about something called "anarcho-capitalism". I'm embarrassed for them.
No, guys, that does not work. It is a contradiction in terms. It cannot exist. If there are no laws, there is no property. Which means that no one can own the means of production, no one can own the land, no one can sell their labour...
Macrodos…

ROUNDTABLE: Anarcho-Capitalism and the Future of Money by Macrodose
Today's episode is hosted by author and labour journalist Sarah Jaffe who is joined by two thinkers whose work on money, neoliberal capitalism, the state and its discontents, cryptocurrency, conspiracy theories, and so much more have overlapping and fascinating insights for how we see the political world today. Quinn Slobodian's most recent book is Crack-Up Capitalism: Market Radicals and the Dream of a World without Democracy published by Metropolitan Books in the US, Penguin in the UK and e…

Pair production in rotating electric fields via quantum kinetic equations: Resolving helicity states
I. A. Aleksandrov, A. Kudlis
https://arxiv.org/abs/2404.02878

Pair production in rotating electric fields via quantum kinetic equations: Resolving helicity states
We investigate the phenomenon of electron-positron pair production from vacuum in the presence of a strong electric field of circular polarization. By means of a nonperturbative approach based on the quantum kinetic equations (QKEs), we numerically calculate helicity-resolved momentum distributions of the particles produced and analyze the corresponding helicity asymmetry. It is demonstrated that the external rotating field tends to generate left-handed and right-handed particles traveling in o…

Scalar perturbations from inflation in the presence of gauge fields
R. Durrer, R. von Eckardstein, Deepen Garg, K. Schmitz, O. Sobol, S. Vilchinskii
https://arxiv.org/abs/2404.19694

Scalar perturbations from inflation in the presence of gauge fields
We study how Abelian-gauge-field production during inflation affects scalar perturbations in the case when the gauge field interacts with the inflaton directly (by means of generic kinetic and axial couplings) and via gravity. The homogeneous background solution is defined by self-consistently taking into account the backreaction of the gauge field on the evolution of the inflaton and the scale factor. For the perturbations on top of this background, all possible scalar contributions coming fro…

Un an\'alisis bibliom\'etrico de la producci\'on cient\'ifica acerca del agrupamiento de trayectorias GPS
Gary Reyes, Laura Lanzarini, C\'esar Estrebou, Aurelio F. Bariviera
https://arxiv.org/abs/2404.17761

Un análisis bibliométrico de la producción científica acerca del agrupamiento de trayectorias GPS
Clustering algorithms or methods for GPS trajectories are in constant evolution due to the interest aroused in part of the scientific community. With the development of clustering algorithms considered traditional, improvements to these algorithms and even unique methods considered as "novelty" for science have emerged. This work aims to analyze the scientific production that exists around the topic "GPS trajectory clustering" by means of bibliometrics. Therefore, a total of 559 articles from t…

Measurement of Proton-Induced Reactions on Lanthanum from 55--200 MeV by Stacked-Foil Activation
Jonathan T. Morrell, Ellen M. O'Brien, Michael Skulski, Andrew S. Voyles, Dmitri G. Medvedev, Veronika Mocko, Lee A. Bernstein, C. Etienne Vermeulen
https://arxiv.org/abs/2402.17893

Measurement of Proton-Induced Reactions on Lanthanum from 55--200 MeV by Stacked-Foil Activation
Cerium-134 is an isotope desired for applications as a chemical analogue to the promising therapeutic radionuclide $^{225}$Ac, for use in bio-distribution assays as an in vivo generator of the short-lived positron-emitting isotope $^{134}$La. In the 50-100 MeV energy range relevant to the production of $^{134}$Ce by means of high-energy proton bombardment of lanthanum, existing cross section data are discrepant and have gaps at important energies. To address these deficiencies, a series of 17 $…

Over the last 15 years, more and more of the income stream of the digital technology sector has pivoted to [Means of Production] as a Service #MoPaaS
we only have ourselves to blame, it was in plain sight all along

Enhancing Rolling Horizon Production Planning Through Stochastic Optimization Evaluated by Means of Simulation
Manuel Schlenkrich, Wolfgang Seiringer, Klaus Altendorfer, Sophie N. Parragh
https://arxiv.org/abs/2402.14506

Enhancing Rolling Horizon Production Planning Through Stochastic Optimization Evaluated by Means of Simulation
Production planning must account for uncertainty in a production system, arising from fluctuating demand forecasts. Therefore, this article focuses on the integration of updated customer demand into the rolling horizon planning cycle. We use scenario-based stochastic programming to solve capacitated lot sizing problems under stochastic demand in a rolling horizon environment. This environment is replicated using a discrete event simulation-optimization framework, where the optimization problem …

This https://arxiv.org/abs/2402.10579 has been replaced.
initial toot: https://mastoxiv.page/@…

Nonequilibrium dynamics and entropy production of a trapped colloidal particle in a complex nonreciprocal medium
We discuss the two-dimensional motion of a Brownian particle that is confined to a harmonic trap and driven by a shear flow. The surrounding medium induces memory effects modelled by a linear, typically nonreciprocal coupling of the particle coordinates to an auxiliary (hidden) variable. The system's behavior resulting from the microscopic Langevin equations for the three variables is analyzed by means of exact moment equations derived from the Fokker-Planck representation, and numerical Browni…

"Most economists, politicians and businesses [with not a thought for tomorrow ] like to see gross domestic product (GDP) rising steadily because it usually means people are spending more [with diminishing satisfaction in what they paid for], extra jobs are created [notwithstanding their often dire quality], more tax is paid [and then spent on bombs] and workers get better pay rises [in a currency that is losing value]."
UK economy grew slightly in February - BBC News

GDP: Economy grew in February increasing hopes UK is out of recession
The economy grew by 0.1%, official figures show, with the production sector providing the biggest boost.

This https://arxiv.org/abs/2309.05789 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Entropy current and entropy production in relativistic spin hydrodynamics
We use a first-principle quantum-statistical method to derive the expression of the entropy production rate in relativistic spin hydrodynamics. We show that the entropy current is not uniquely defined and can be changed by means of entropy-gauge transformations, much the same way as the stress-energy tensor and the spin tensor can be changed with pseudo-gauge transformations. We show that the local thermodynamic relations, which are admittedly educated guesses in relativistic spin hydrodynamics…

Nonequilibrium dynamics and entropy production of a trapped colloidal particle in a complex nonreciprocal medium
Lea Fernandez, Siegfried Hess, Sabine H. L. Klapp
https://arxiv.org/abs/2402.10579

Nonequilibrium dynamics and entropy production of a trapped colloidal particle in a complex nonreciprocal medium
We discuss the two-dimensional motion of a Brownian particle that is confined to a harmonic trap and driven by a shear flow. The surrounding medium induces memory effects modelled by a linear, typically nonreciprocal coupling of the particle coordinates to an auxiliary (hidden) variable. The system's behavior resulting from the microscopic Langevin equations for the three variables is analyzed by means of exact moment equations derived from the Fokker-Planck representation, and numerical Browni…

Baryon junction effects on charmonium production in pp and pPb collisions
R. Terra
https://arxiv.org/abs/2404.07743 https://arxiv.org…

Baryon junction effects on charmonium production in pp and pPb collisions
In this work we study the effects of the proton and $Pb$ internal structure on charmonium production at high multiplicities. To do this, we assume that the nucleon has an Y shape, which means that the effective quarks (quarks + antiquarks + gluons) are in the extremities of the Y, connected by gluon lines. Since the quarks are in the periphery and the gluons are in the center, as $pp$ collisions go from peripheral to more central and then to ultra-central collisions, the interactions change fro…