cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A dynamic network model of societal complexity and resilience inspired by Tainter's theory of collapse
Creators: name: Schunck, Florian
name: Wiedermann, Marc
name: Heitzig, Jobst
name: Donges, Jonathan F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In recent years, several global events have severely disrupted economies and social structures, undermining confidence in the resilience of modern societies. While empirical evidence on the dynamics and drivers of past societal collapse is mounting, a process-based understanding of these dynamics is still in its infancy. Here we aim to identify and illustrate the underlying drivers of such societal instability or even collapse. The inspiration for this work is Joseph Tainter's theory of the "collapse of complex societies", which postulates that the complexity of societies increases as they solve problems, leading to diminishing returns on complexity investments, and ultimately to collapse. In this work we have abstracted this theory into a low-dimensional and stylised model of two classes of networked agents, hereafter referred to as "laborers" and "administrators". We numerically modeled the dynamics of societal complexity, measured as the fraction of "administrators", which is assumed to affect the productivity of connected energy-producing "laborers". We show that collapse becomes increasingly likely as the complexity of the model society continuously increases in response to external stresses that emulate Tainter's abstract notion of problems that societies must solve. We also provide an analytical approximation of the system's dominant dynamics, which matches well with the numerical experiments, and use it to study the influence on network link density, social mobility and productivity. Our work advances the understanding of social-ecological collapse and illustrates its potentially direct link to an ever-increasing societal complexity in response to external shocks or stresses via a self-reinforcing feedback.
Quantum theory of statistical radiation pressure in free space
Creators: name: Arya, Navdeep
name: Batra, Navketan
name: Lochan, Kinjalk
name: Goyal, Sandeep K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Light is known to exert radiation pressure on any surface it is incident upon, via the transfer of momentum from the light to the surface. In general, this force is assumed to be pushing or repulsive in nature. In this paper, we present a complete quantum treatment of radiation pressure. We show that the interaction of an atom with light can lead to both repulsive and attractive forces due to the absorption and emission of photons, respectively. An atom prepared in the excited state initially will experience a pulling force when interacting with light. On the other hand, if the atom is prepared in the ground state then the force will be repulsive while having the same magnitude as in the earlier case. Therefore, for an ensemble of atoms, the direction of the net force will be decided by the excited and ground state populations. In the semi-classical treatment of light-matter interaction, the absorption and emission processes have the same probability. Therefore the magnitudes of the force in the two processes turn out to be the same. We obtain the effective emission profile for an excited atom interacting with a quantum electromagnetic field, and show that in the quantum treatment, despite these probabilities being different, the magnitudes of the two statistical forces remain the same. This can be explained by noting that the extra contribution in the emission process is due to the interaction of the atom with the vacuum modes of the electromagnetic field, which results in a symmetric emission profile, contributing to a net zero force on the atoms in an ensemble. We further identify the set of states of electromagnetic field which give rise to non-zero momentum transfer to the atom.
description: 19 pages, 2 figures
Refined Selmer equations for the thrice-punctured line in depth two
Creators: name: Best, Alex J.
name: Betts, L. Alexander
name: Kumpitsch, Theresa
name: Lüdtke, Martin
name: McAndrew, Angus W.
name: Qian, Lie
name: Studnia, Elie
name: Xu, Yujie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 14G05, Secondary 11G55, 11Y50

description: In [Kim05], Kim gave a new proof of Siegel's Theorem that there are only finitely many $S$-integral points on $\mathbb P^1_{\mathbb Z}\setminus\{0,1,\infty\}$. One advantage of Kim's method is that it in principle allows one to actually find these points, but the calculations grow vastly more complicated as the size of $S$ increases. In this paper, we implement a refinement of Kim's method to explicitly compute various examples where $S$ has size $2$ which has been introduced in [BD19]. In so doing, we exhibit new examples of a natural generalisation of a conjecture of Kim.
description: 35 pages, comments welcome
Electrical control of valley-Zeeman spin-orbit coupling-induced spin precession at room temperature
Creators: name: Ingla-Aynés, Josep
name: Herling, Franz
name: Fabian, Jaroslav
name: Hueso, Luis E.
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ultimate goal of spintronics is achieving electrically controlled coherent manipulation of the electron spin at room temperature to enable devices such as spin field-effect transistors. With conventional materials, coherent spin precession has been observed in the ballistic regime and at low temperatures only. However, the strong spin anisotropy and the valley character of the electronic states in 2D materials provide unique control knobs to manipulate spin precession. Here, by manipulating the anisotropic spin-orbit coupling in bilayer graphene by the proximity effect to WSe$_2$, we achieve coherent spin precession in the absence of an external magnetic field, even in the diffusive regime. Remarkably, the sign of the precessing spin polarization can be tuned by a back gate voltage and by a drift current. Our realization of a spin field-effect transistor at room temperature is a cornerstone for the implementation of energy-efficient spin-based logic.
description: 7 pages, 4 figures
Synthesis, spectral and molecular studies of half-sandwich arene ruthenium and Cp*Rh/Cp*Ir complexes containing bidentate P-N and E–N ligands (E = S, Se) based on diphenyl(2-pyridyl)phosphine
Creators: name: Kalidasan, Mahesh
name: R. Nagarajaprakash
name: Kollipara Mohan Rao
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Cancer
Marine Biology
Biological Sciences
Chemistry
Earth and Environmental Sciences
Cell Biology
Engineering
Biochemistry
Biophysics

description: The chalcogenide ligands {E=PPh2Py} (E = O, S, Se) were prepared by direct oxidation of diphenyl(2-pyridyl)phosphine using H2O2, S, and Se powder, respectively. The reaction of ligand with starting metal precursors [(arene)RuCl2]2 {M = Ru, arene = benzene; p-cymene} and [Cp*MCl2]2 (M = Rh, Ir) afforded a series of cationic half-sandwich complexes, [(arene/Cp*)MCl{κ2-(NE)-EPPh2Py)}]+. Reaction of O=PPh2Py with precursors yielded known complexes [(arene/Cp*)MCl{κ2-(PN)-PPh2Py)}]+ instead of expected complexes [(arene/Cp*)MCl{κ2-(NO)-O=PPh2Py)}]+. All new complexes were isolated as counterion and characterized by spectroscopic techniques like FT-IR, NMR, mass, and UV–vis. Some representative complexes were structurally determined by X-ray crystallographic analysis, revealing typical three-legged piano stool geometry around the metal center with a five-membered metallacycle.
A generalized mean-field game model for the dynamics of pedestrians with limited predictive abilities
Creators: name: Cristiani, Emiliano
name: De Santo, Arianna
name: Menci, Marta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 76A30, 35Q91, 49N90

description: This paper investigates the model for pedestrian flow firstly proposed in [Cristiani et al., DOI:10.1137/140962413]. The model assumes that each individual in the crowd moves in a known domain, aiming at minimizing a given cost functional. Both the pedestrian dynamics and the cost functional itself depend on the position of the whole crowd. In addition, pedestrians are assumed to have predictive abilities, but limited in time, extending only up to $θ$ time units into the future, where $θ\in[0,\infty)$ is a model parameter. 1) For $θ=0$ (no predictive abilities), we recover the modeling assumptions of the Hughes's model, where people take decisions on the basis of the current position of the crowd only. 2) For $θ\to\infty$, instead, we recover the standard mean field game (MFG) setting, where people are able to forecast the behavior of the others at any future time and take decisions on the basis of the current and future position of the whole crowd. 3) For intermediate values of $θ$ we obtain something different: as in the Hughes's model, the numerical procedure to solve the problem requires to run an off-line procedure at any fixed time $t$, which returns the current optimal velocity field at time $t$ by solving an associated backward-in-time Hamilton-Jacobi-Bellman equation; but, differently from the Hughes's model, here the procedure involves a prediction of the crowd behavior in the sliding time window $[t,t+θ)$, therefore the optimal velocity field is given by the solution to a forward-backward system which joins a Fokker-Planck equation with a Hamilton-Jacobi-Bellman equation as in the MFG approach. The fact that a different forward-backward system must be solved at any time $t$ arises new interesting theoretical questions. Numerical tests will give some clues about the well-posedness of the problem.
Separation and identification of bioactive compounds in Anabasis articulata (Forsk) Moq. roots
Creators: name: Nacéra Ghembaza
name: Belyagoubi-Benhammou, Nabila
name: Bekkara, Fawzia Atik
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: In the present paper, for the first time, we are interested to separate and identify some bioactive fractions isolated from the roots of a Saharan plant Anabasis articulata, which is widely used in traditional medicine against cancer. The crude methanolic extract of the roots was fractionated on column chromatography, and eluted with dichloromethane/methanol each time with increasing polarity of methanol; 17 fractions were separated. One of these fractions named F12 showed more antioxidant activity to scavenge DPPH free radical with percentage inhibition of 95.29%. F12 was separated by thin-layer chromatography (TLC) to give 12 compounds. A second preparative TLC of compound 2, which has antioxidative activity of 74.92%, provided the three phenolic acids M1, M2 and M3, analysed by high-performance liquid chromatography and UV–visible spectrophotometry.
Minimal surfaces in Euclidean spaces by way of complex analysis
Creators: name: Forstneric, Franc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53A10, Secondary 32H02

description: This is an expanded version of my plenary lecture at the 8th European Congress of Mathematics in Portorož on 23 June 2021. The main part of the paper is a survey of recent applications of complex-analytic techniques to the theory of conformal minimal surfaces in Euclidean spaces. New results concern approximation, interpolation, and general position properties of minimal surfaces, existence of minimal surfaces with a given Gauss map, and the Calabi-Yau problem for minimal surfaces. To be accessible to a wide audience, the article includes a self-contained elementary introduction to the theory of minimal surfaces in Euclidean spaces.
description: To appear in Proceedings of the 8th European Congress of Mathematics
CloudFindr: A Deep Learning Cloud Artifact Masker for Satellite DEM Data
Creators: name: Borkiewicz, Kalina
name: Shah, Viraj
name: Naiman, J. P.
name: Shen, Chuanyue
name: Levy, Stuart
name: Carpenter, Jeff
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Artifact removal is an integral component of cinematic scientific visualization, and is especially challenging with big datasets in which artifacts are difficult to define. In this paper, we describe a method for creating cloud artifact masks which can be used to remove artifacts from satellite imagery using a combination of traditional image processing together with deep learning based on U-Net. Compared to previous methods, our approach does not require multi-channel spectral imagery but performs successfully on single-channel Digital Elevation Models (DEMs). DEMs are a representation of the topography of the Earth and have a variety applications including planetary science, geology, flood modeling, and city planning.
Separation and identification of bioactive compounds in Anabasis articulata (Forsk) Moq. roots
Creators: name: Nacéra Ghembaza
name: Belyagoubi-Benhammou, Nabila
name: Bekkara, Fawzia Atik
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Biological Sciences
subject: Sociology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Pharmacology
subject: Engineering
subject: Biochemistry

description: In the present paper, for the first time, we are interested to separate and identify some bioactive fractions isolated from the roots of a Saharan plant Anabasis articulata, which is widely used in traditional medicine against cancer. The crude methanolic extract of the roots was fractionated on column chromatography, and eluted with dichloromethane/methanol each time with increasing polarity of methanol; 17 fractions were separated. One of these fractions named F12 showed more antioxidant activity to scavenge DPPH free radical with percentage inhibition of 95.29%. F12 was separated by thin-layer chromatography (TLC) to give 12 compounds. A second preparative TLC of compound 2, which has antioxidative activity of 74.92%, provided the three phenolic acids M1, M2 and M3, analysed by high-performance liquid chromatography and UV–visible spectrophotometry.
Xylazine sedation and gunshot for depopulation of cattle
Creators: name: Hanthorn, Christy J.
name: Sanderson, Michael W.
Publisher: name: The Bovine Practitioner
Year: 2019

description: A depopulation protocol utilizing intramuscular sedation with xylazine followed by euthanasia via gunshot was evaluated for effectiveness and practicality in a group of 43 feedlot calves in a commercial feedlot setting. Sedation and euthanasia were successful in all 43 calves. The time required to complete the procedure was 46 minutes from the first xylazine injection to the last gunshot. Utilization of this depopulation method demonstrates that cattle in a commercial feedlot can be euthanized in a rapid manner that is practical and efficient, while also maintaining an acceptable level of animal welfare. Expansion to larger herds, including the total population of a large feedlot, may still be challenging. The use of this depopulation method should be considered for future livestock emergencies.
description: The Bovine Practitioner, Vol. 53, No. 2 (2019 Summer)
Role of arterial hypertension as a predictive marker for bevacizumab efficacy in recurrent glioblastoma – a prospective analysis
Creators: name: Wagner, Claudia C.
name: Held, Ulrike
name: Kofmehl, Reto
name: Battegay, Edouard
name: Zimmerli, Lukas
name: Hofer, Silvia
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Biophysics
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: Hematology

description: Role of arterial hypertension as a predictive marker for bevacizumab efficacy in recurrent glioblastoma – a prospective analysis
Klaas Bentein – Mark Janse (eds), Varieties of Post-Classical and Byzantine Greek
Creators: name: Signes Codoñer, Juan
Publisher: name: The Byzantine Review
Year: 2022

description: Klaas Bentein – Mark Janse (eds), Varieties of Post-Classical and Byzantine Greek (Trends in Linguistics. Studies and Monographs 331). Berlin: De Gruyter – Mouton 2021. XVIII, 429 pp. – ISBN 978-3-11-060855-7 (€ 99.95)
description: The Byzantine Review, Bd. 4 (2022)
Case Report - Chronic oak toxicity (Quercus suber) in beef cattle in the south of Portugal
Creators: name: Frias, C.
name: Simões, P. B. A.
name: Cota, J.
name: Pissarra, H.
name: Nunes, T. P.
name: Hjerpe, C. A.
name: Lima, M. S.
Publisher: name: The Bovine Practitioner
Year: 2019

description: Oak toxicity in cattle results from ingestion of acorns, buds, leaves, sprouts, and saplings from several species of trees in the genus Quercus, all of which contain high concentrations of tannins. Consumption of acorns by ruminants, principally between late summer and early winter, is common in the south of Portugal, where there is a high prevalence of Quercus suber. Oak poisoning can lead to progressive damage to the kidneys and may result in renal failure and death. This study involved 17 beef cows that died of chronic oak poisoning related to ingestion of Quercus suber. The most relevant findings from necropsy examinations were abdominal fluid accumulation, atrophic/fibrotic kidneys, mesenteric and sub-mandibular edema, absence of body fat reserves and muscle atrophy, and weight loss. The most significant histopathologic finding was chronic interstitial nephritis. Elevated blood urea nitrogen, creatinine, and K+ values and reduced albumin values were found in 4 cows examined ante-mortem. Straight-bred Mertolengo cows appeared to be highly resistant to oak toxicity.
description: The Bovine Practitioner, Vol. 53, No. 2 (2019 Summer)
Carla Rossi – Academic Output and Research Integrity (2024–2025)
Creators: name: Rossi, Carla
Publisher: name: Zenodo
Year: 2025

description: This document presents the academic profile and main scholarly publications of Carla Rossi between 2024 and 2025. It includes a public statement clarifying misleading claims circulated online between 2022 and 2024, and summarises the findings of a legal expert report filed with the Swiss Federal Administrative Court (San Gallo) confirming the groundlessness of all allegations. The document is part of a broader effort toward transparency, scholarly responsibility and public access to verifiable research records.

—

Questo documento raccoglie il profilo accademico e le principali pubblicazioni di Carla Rossi nel biennio 2024–2025. Contiene una dichiarazione pubblica con chiarimenti documentati in merito a contenuti fuorvianti diffusi online tra il 2022 e il 2024. La sintesi finale si basa anche su una perizia tecnica depositata presso il Tribunale federale svizzero di San Gallo, che ha riconosciuto l’infondatezza delle accuse. Il testo contribuisce alla trasparenza scientifica e alla tutela dell'integrità accademica.
On quadratic Waring's problem in totally real number fields
Creators: name: Krásenský, Jakub
name: Yatsyna, Pavlo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11E12, 11D85, 11E25, 11E39

description: We improve the bound of the $g$-invariant of the ring of integers of a totally real number field, where the $g$-invariant $g(r)$ is the smallest number of squares of linear forms in $r$ variables that is required to represent all the quadratic forms of rank $r$ that are representable by the sum of squares. Specifically, we prove that the $g_{\mathcal{O}_K}(r)$ of the ring of integers $\mathcal{O}_K$ of a totally real number field $K$ is at most $g_{\mathbb{Z}}([K:\mathbb{Q}]r)$. Moreover, it can also be bounded by $g_{\mathcal{O}_F}([K:F]r+1)$ for any subfield $F$ of $K$. This yields a sub-exponential upper bound for $g(r)$ of each ring of integers (even if the class number is not $1$). Further, we obtain a more general inequality for the lattice version $G(r)$ of the invariant and apply it to determine the value of $G(2)$ for all but one real quadratic field.
description: 16 pages; accepted in Proc. Am. Math. Soc
Gate-tuneable and chirality-dependent charge-to-spin conversion in Tellurium nanowires
Creators: name: Calavalle, Francesco
name: Suárez-Rodríguez, Manuel
name: Martín-García, Beatriz
name: Johansson, Annika
name: Vaz, Diogo C.
name: Yang, Haozhe
name: Maznichenko, Igor V.
name: Mateo-Alonso, Sergey Ostanin Aurelio
name: Chuvilin, Andrey
name: Mertig, Ingrid
name: Gobbi, Marco
name: Casanova, Fèlix
name: Hueso, Luis E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chiral materials are the ideal playground for exploring the relation between symmetry, relativistic effects, and electronic transport. For instance, chiral organic molecules have been intensively studied to electrically generate spin-polarized currents in the last decade, but their poor electronic conductivity limits their potential for applications. Conversely, chiral inorganic materials such as Tellurium are excellent electrical transport materials, but have not been explored to enable the electrical control of spin polarization in devices. Here, we demonstrate the all-electrical generation, manipulation, and detection of spin polarization in chiral single-crystalline Tellurium nanowires. By recording a large (up to 7%) and chirality-dependent unidirectional magnetoresistance, we show that the orientation of the electrically generated spin polarization is determined by the nanowire handedness and uniquely follows the current direction, while its magnitude can be manipulated by an electrostatic gate. Our results pave the way for the development of magnet-free chirality-based spintronic devices.
Trends of cervical cancer in Greenland: A 60-year overview
Creators: name: Sander, Bente B.
name: Rebolj, Matejka
name: Lynge, Elsebeth
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Background. Due to its extraordinarily fast economic and social transition, virtually closed borders before 1940 and, moreover, that 85% of the population has the distinctive genetics of the Inuit, Greenland is a very interesting country to study cervical cancer from a historical perspective. Nevertheless, little has been reported about long-term cancer trends in Greenland. Our aim was to describe and interpret the incidence of cervical cancer from 1950 to 2009. Material and methods. We systematically searched PubMed for articles reporting the incidence of cervical cancer in Greenland. We supplemented this with data for 1980–2009 obtained from the Chief Medical Officer of Greenland. Results. Incidence of cervical cancer was around 10 per 100 000 women (age-standardised, world population, ASW) in the 1950s, 30 per 100 000 in the 1960s, and in the 1980s around 60 per 100 000. From 1985 onwards, the incidence of cervical cancer started decreasing to the current level of 25 per 100 000. Conclusion. The steep increase in the incidence of cervical cancer from the 1950s onwards is unlikely to be explained by increasing completeness of data. In parallel with the economic development, however, out-of-wedlock births (proxy for sexual behaviour) increased dramatically from 1935 onwards while tobacco use increased from the 1950s onwards. From the late 1960s to around 1990, data suggested rather stable but high levels of sexual habits. The decrease in the incidence of cervical cancer since 1985 is consistent with the introduction of screening. The data strongly suggested that the increased burden of cervical cancer in Greenlandic women was real and followed earlier changes in sexual behaviour; these changes were likely a consequence of the tremendous societal changes.
The ESO Office for Science in Chile: opportunities for fostering scientific interactions
Creators: name: de Gregorio-Monsalvo, Itziar
name: Schmidtobreick, Linda
name: Korhonen, Heidi
name: Paladini, Claudia
name: Pompei, Emanuela
Publisher: name: Zenodo
Year: 2022

description: ESO Chile is an excellent place to increase collaborations with the Chilean astronomical community and with astronomers at other international observatories located in the country. The ESO Office for Science in Chile is in charge of establishing a healthy scientific ecosystem at ESO Chile by supporting individual research programmes and maintaining a stimulating scientific environment. It offers the possibility to interact with Instrument and System Scientists, and Science Operations Managers from Paranal, ALMA, La Silla, and APEX Observatories. There is also a continuous flow of visiting astronomers and observers that allows stimulating scientific interactions with the international community. In this poster we will present the different science programmes and activities under the umbrella of the ESO Office for Science in Chile, like the ESO studentship and fellowships, and the ESO scientific visitor programme in Chile.
Reduction of aflatoxin transfer into milk of lactating dairy cows with addition of a dietary clay adsorbent
Creators: name: Allen, S. C.
name: Rude, B. J.
name: Bailey, R. H.
name: Ward, S. H.
Publisher: name: The Bovine Practitioner
Year: 2019

description: Twenty-four lactating Holstein cows were used in a randomized complete block design to test the efficacy of clay at reducing aflatoxin M1 (AFM1) in milk. Cows were blocked by parity and stage of lactation and were adapted to individual feed gates prior to treatment. Cows were randomly assigned 1 of 4 dietary treatments (n=6): 1) control (CON) total mixed ration (TMR); 2) aflatoxin control (AFC) TMR with 300 ppb aflatoxin B1 (AFB1); 3) adsorbent diet (CLY) TMR with 1.76 oz (50 g) of clay; 4) AFC diet with clay (CLY+AF) with 300ppb AFB1 and 1.76 oz (50 g) of clay. Data were analyzed using the GLM procedure of SAS. Main effects were treatment, days-inmilk, parity, and day. Significance was declared at P<0.05. Dry matter intake was similar across treatments; however, cows consuming CON diets had reduced milk yield. Milk from AFC cows had the greatest concentration of AFM1, and cows fed CLY+AF averaged 1.47 ± 0.186 ppb AFM1 less than cows fed AFC, resulting in a 60.0% reduction. Results from this study show that adding clay to contaminated diets was effective at reducing AFM1 concentrations in milk of cows fed AFB1 without negatively affecting production.
description: The Bovine Practitioner, Vol. 53, No. 2 (2019 Summer)
Formação remota em economia solidária: possibilidades e limitações
Creators: name: SANTOS, LUCIANA
name: Jesus, Odilon Sérgio Santos de
Publisher: name: figshare
Year: 2022
Subjects: subject: 139999 Education not elsewhere classified
subject: FOS: Educational sciences
subject: Education
subject: 149999 Economics not elsewhere classified
subject: FOS: Economics and business

description: Esse estudo investiga as limitações e possibilidades da oferta de formação em economia solidária no formato remoto. O objeto do estudo foi o curso de extensão “Tópicos fundamentais em economia solidária”,que teve duas edições anteriores presenciais e em 2020 foi ofertado em ambiente digital, pela Incubadora Tecnológica de Cooperativas Populares da UNEB (ITCP/COAPPES/ UNEB), em formato remoto, síncrono e assíncrono. O estudo recorre aos princípios da pesquisa-ação (Michel Thiollent) e da dialogicidade (Paulo Freire). A metodologia adotada foi a pesquisa qualiquantitativa, composta por questionários aplicados aos participantes no momento de inscrição e de finalização do curso.Os resultados evidenciaram como vantagens da formação remota: maior alcance geográfico, aumento do domínio dos temas abordados, interação, aplicabilidade dos conteúdos na prática cotidiana. Já as desvantagens foram: dificuldade em utilizar as ferramentas de mediação tecnológica e carga horária reduzida. Conclui-se que a oferta do curso mostrou-se como um potencial para a ITCP, visto que a grande parte dos inscritos buscou a formação para atuar em incubadoras universitárias ou outras modalidades de incubação social.
Low-field microwave-free sensors using dipolar spin relaxation of quartet spin states in silicon carbide
Creators: name: Bulancea-Lindvall, Oscar
name: Eiles, Matthew T.
name: Son, Nguyen Tien
name: Abrikosov, Igor A.
name: Ivády, Viktor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Paramagnetic defects and nuclear spins are the major sources of magnetic field-dependent spin relaxation in point defect quantum bits. The detection of related optical signals has led to the development of advanced relaxometry applications with high spatial resolution. The nearly degenerate quartet ground state of the silicon vacancy qubit in silicon carbide (SiC) is of special interest in this respect, as it gives rise to relaxation rate extrema at vanishing magnetic field values and emits in the first near-infra-red transmission window of biological tissues, providing an opportunity for developing novel sensing applications for medicine and biology. However, the relaxation dynamics of the silicon vacancy center in SiC have not yet been fully explored. In this paper, we present results from a comprehensive theoretical investigation of the dipolar spin relaxation of the quartet spin states in various local spin environments. We discuss the underlying physics and quantify the magnetic field and spin bath dependent relaxation time $T_1$. Using these findings we demonstrate that the silicon vacancy qubit in SiC can implement microwave-free low magnetic field quantum sensors of great potential.
Glyptothorax pallens Mosavi-Sabet, Eagderi, Vatandoust & Freyhof 2021
Creators: name: Sayyadzadeh, Golnaz
name: Esmaeili, Hamid Reza
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Siluriformes
Sisoridae
Glyptothorax
Glyptothorax pallens

description: 214. Glyptothorax pallens Mosavi-Sabet, Eagderi, Vatandoust & Freyhof, 2021
Common name. Pallens sucking catfish
Taxonomy. Original description: Glyptothorax pallens Mosavi-Sabet, Eagderi, Vatandoust & Freyhof, 2021: 472, figs. 19-22 [Stream Zemkan 3 km north of Zamkan-e Olya, Kermanshah Province, Iran, 34.6452, 46.2856; holotype: GUIC GTI-H].
Revisions. None.
Illustrations. Mosavi-Sabet et al. (2021: 472, fig. 19).
Distribution in Iran. —Distribution in River Basin: Tigris.—Distribution in Ecoregions: 442-Upper Tigris & Euphrates.
Status in Iran. [Endemic].—Gorbemahi-e Sirvan.—Recorded from Iran in the original description by Mosavi-Sabet et al. (2021); listed in previous checklists from Iran by Eagderi et al. (2022).—Iran material: GUIC.
Conservation. —IUCN: NE.
description: Published as part of Sayyadzadeh, Golnaz & Esmaeili, Hamid Reza, 2024, Freshwater lamprey and fishes of Iran: Reappraisal and updated checklist with a note on Eagderi et al. (2022), pp. 1-99 in Zootaxa 5402 (1) on page 68, DOI: 10.11646/zootaxa.5402.1.1, http://zenodo.org/record/10524097
Spin Hall magnetoresistance effect from a disordered interface
Creators: name: Catalano, Sara
name: Gomez-Perez, Juan M.
name: Aguilar-Pujol, M. Xochitl
name: Chuvilin, Andrey
name: Gobbi, Marco
name: Hueso, Luis E.
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Spin Hall magnetoresistance (SMR) emerged as a reference tool to investigate the magnetic properties of materials with an all-electrical set-up. Its sensitivity to the magnetization of thin films and surfaces may turn it into a valuable technique to characterize Van der Waals magnetic materials, which support long range magnetic order in atomically thin layers. However, realistic surfaces can be affected by defects and disorder, which may result in unexpected artifacts in the SMR, rather than the sole appearance of electrical noise. Here, we study the SMR response of heterostructures combining a platinum (Pt) thin film with the Van der Waals antiferromagnet MnPSe3 and observe a robust SMR-like signal, which turns out to originate from the presence of strong interfacial disorder in the system. We use transmission electron microscopy (TEM) to characterize the interface between MnPSe3 and Pt, revealing the formation of a few-nanometer-thick platinum-chalcogen amorphous layer. The analysis of the transport and TEM measurements suggests that the signal arises from a disordered magnetic system formed at the Pt/MnPSe3 interface, washing out the interaction between the spins of the Pt electrons and the MnPSe3 magnetic lattice. Our results show that damaged interfaces can yield an important contribution to SMR, questioning a widespread assumption on the role of disorder in such measurements.
Performance of a milk leukocyte differential test for decision-making in a selective dry cow therapy program
Creators: name: Denis-Robichaud, José
name: Almeida, Raul A.
name: Ivey, Susan
name: Rodriguez, Rudy R.
name: Payne, Martha
name: Leslie, Ken E.
name: Hockett, Mitchell E.
Publisher: name: The Bovine Practitioner
Year: 2019

description: The objectives of this study were 1) to determine the operating characteristics of a commercial milk leukocyte differential (MLD) test to detect intramammary infections in quarters of late-lactation dairy cows as compared to bacteriological culture and 2) to evaluate the milk production and udder health parameters between cows treated following blanket vs selective dry cow therapy (DCT) using the MLD test results. In a first experiment, the MLD test was compared to the bacteriological culture results (gold standard) of 363 quarters from 94 cows. The sensitivity, specificity, and predictive values for the identification of infection using the MLD test were determined. Sensitivity ranged from 44% to 77%, and specificity from 54% to 92%. In the second experiment blanket DCT was compared to selective DCT based on the results of MLD test, and treating only positive quarters; a total of 328 cows were randomly assigned to 1 of the 2 treatment groups. The proportion of quarters positive to bacteriological culture, and the incidence rate of moderate and severe cases of clinical mastitis events, did not differ between treatment groups. Results of these experiments provide information to support decision-making in a selective DCT program in low-SCC herds using the MLD test.
description: The Bovine Practitioner, Vol. 53, No. 2 (2019 Summer)
Synthesis, spectral and molecular studies of half-sandwich arene ruthenium and Cp*Rh/Cp*Ir complexes containing bidentate P-N and E-N ligands (E = S, Se) based on diphenyl(2-pyridyl)phosphine
Creators: name: Kalidasan, Mahesh
name: R. Nagarajaprakash
name: Kollipara Mohan Rao
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Cancer
Marine Biology
Biological Sciences
Chemistry
Earth and Environmental Sciences
Cell Biology
Engineering
Biochemistry
Biophysics

description: The chalcogenide ligands {E=PPh2Py} (E = O, S, Se) were prepared by direct oxidation of diphenyl(2-pyridyl)phosphine using H2O2, S and Se powder, respectively. The reaction of ligand with starting metal precursors [(arene)RuCl2]2 {M = Ru, arene = benzene; p-cymene} and [Cp*MCl2]2 (M = Rh, Ir) afforded a series of cationic half sandwich complexes, [(arene/Cp*)MCl{κ2-(NE)-EPPh2Py)}]+. Reaction of O=PPh2Py with precursors yielded known complexes [(arene/Cp*)MCl{κ2-(PN)-PPh2Py)}]+ instead of expected complexes [(arene/Cp*)MCl{κ2-(NO)-O=PPh2Py)}]+. All new complexes were isolated as PF6- counterion and characterized by spectroscopic techniques like FT-IR, NMR, mass, UV-Vis. Some representative complexes were structurally determined by X-ray crystallographic analysis, revealing typical three-legged piano stool geometry around the metal center with a five-membered metallacycle.
Oka domains in Euclidean spaces
Creators: name: Forstneric, Franc
name: Wold, Erlend Fornaess
Publisher: name: arXiv
Year: 2022
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32Q56, 32E30, 32M17

description: In this paper we find surprisingly small Oka domains in Euclidean spaces $\mathbb C^n$ of dimension $n>1$ at the very limit of what is possible. Under a mild geometric assumption on a closed unbounded convex set $E$ in $\mathbb C^n$ we show that $\mathbb C^n\setminus E$ is an Oka domain. In particular, there are Oka domains which are only slightly bigger than a halfspace, the latter being neither Oka nor hyperbolic. This gives families of smooth real hypersurfaces $Σ_t\subset \mathbb C^n$ $(t\in\mathbb R)$ dividing $\mathbb C^n$ in an unbounded hyperbolic domain and an Oka domain such that at the threshold value $t=0$ the hypersurface $Σ_0$ is a hyperplane and the character of the two sides gets reversed. More generally, we show that if $E$ is a closed set in $\mathbb C^n$ for $n>1$ whose projective closure $\overline E\subset\mathbb C\mathbb P^n$ avoids a hyperplane $Λ\subset\mathbb C\mathbb P^n$ and is polynomially convex in $\mathbb C\mathbb P^n\setminus Λ\cong\mathbb C^n$, then $\mathbb C^n\setminus E$ is an Oka domain.
Poster, The Nuclear Energy LILCO Creates Today Can Cost Jobs Tomorrow, July 1977
Creators: name: New York State Against Jamesport
Publisher: name: Unknown
Year: 1977
Subjects: Posters
Nuclear power
Nuclear power plants

description: This poster is from the New York State Against Jamesport newspaper, co-sponsored by The Long Island Farm Bureau and Suffolk for Safe Energy, and expresses concerns for the impact on community health and future jobs by the construction of the LILCO nuclear power plant.
Lysosomal iron liberation is responsible for the vulnerability of brain microglial cells to iron oxide nanoparticles: comparison with neurons and astrocytes
Creators: name: Petters, Charlotte
name: Thiel, Karsten
name: Dringen, Ralf
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Iron oxide nanoparticles (IONPs) are used for various biomedical and neurobiological applications. Thus, detailed knowledge on the accumulation and toxic potential of IONPs for the different types of brain cells is highly warranted. Literature data suggest that microglial cells are more vulnerable towards IONP exposure than other types of brain cells. To investigate the mechanisms involved in IONP-induced microglial toxicity, we applied fluorescent dimercaptosuccinate-coated IONPs to primary cultures of microglial cells. Exposure to IONPs for 6 h caused a strong concentration-dependent increase in the microglial iron content which was accompanied by a substantial generation of reactive oxygen species (ROS) and by cell toxicity. In contrast, hardly any ROS staining and no loss in cell viability were observed for cultured primary astrocytes and neurons although these cultures accumulated similar specific amounts of IONPs than microglia. Co-localization studies with lysotracker revealed that after 6 h of incubation in microglial cells, but not in astrocytes and neurons, most IONP fluorescence was localized in lysosomes. ROS formation and toxicity in IONP-treated microglial cultures were prevented by neutralizing lysosomal pH by the application of NH4Cl or Bafilomycin A1 and by the presence of the iron chelator 2,2′-bipyridyl. These data demonstrate that rapid iron liberation from IONPs at acidic pH and iron-catalyzed ROS generation are involved in the IONP-induced toxicity of microglia and suggest that the relative resistance of astrocytes and neurons against acute IONP toxicity is a consequence of a slow mobilization of iron from IONPs in the lysosomal degradation pathway.
Effect of distal splitting the scrotum when banding feedlot bulls on performance outcomes and healing time
Creators: name: Theurer, Miles E.
name: Fox, J. Trent
name: McCarty, Travis M.
name: McCollum, Ryan M.
name: Cranwell, Clyde D.
Publisher: name: The Bovine Practitioner
Year: 2019

description: Castration of bulls using high tension banding techniques is a common practice in commercial feedlots. The objective of this study was to evaluate whether splitting the scrotum at time of banding would impact performance and healing times in feedlot bulls. A total of 32 bulls from a single breeding operation were blocked by initial body weight and then randomly assigned to intact (n = 16) or split (n = 16) treatment groups. A Newberry knife was used to make a 3-inch (7.6 cm) side-to-side incision through the distal scrotum immediately after banding bulls in the split treatment group. Bulls in the intact group were banded, but no incision was made in the scrotum. Individual weights were collected on days 14, 28, and 56, and the scrotum was visually assessed at each weigh point. More (37.5%) scrotums were absent on day 28 (P=0.03), and ADG was improved at day 56 (P=0.06) in the split treatment group compared to intact treatment group. Follow up studies evaluating the inflammatory response, health, and performance outcomes are warranted to further evaluate the process of splitting the scrotum at the time of band castration.
description: The Bovine Practitioner, Vol. 53, No. 2 (2019 Summer)
Vafa-Witten Theory: Invariants, Floer Homologies, Higgs Bundles, a Geometric Langlands Correspondence, and Categorification
Creators: name: Ong, Zhi-Cong
name: Tan, Meng-Chwan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We revisit Vafa-Witten theory in the more general setting whereby the underlying moduli space is not that of instantons, but of the full Vafa-Witten equations. We physically derive (i) a novel Vafa-Witten four-manifold invariant associated with this moduli space, (ii) their relation to Gromov-Witten invariants, (iii) a novel Vafa-Witten Floer homology assigned to three-manifold boundaries, (iv) a novel Vafa-Witten Atiyah-Floer correspondence, (v) a proof and generalization of a conjecture by Abouzaid-Manolescu in [1] about the hypercohomology of a perverse sheaf of vanishing cycles, (vi) a Langlands duality of these invariants, Floer homologies and hypercohomology, and (vii) a quantum geometric Langlands correspondence with purely imaginary parameter that specializes to the classical correspondence in the zero-coupling limit, where Higgs bundles feature in (ii), (iv), (vi) and (vii). We also explain how these invariants and homologies will be categorified in the process, and discuss their higher categorification. We therefore relate differential and enumerative geometry, topology and geometric representation theory in mathematics, via a maximally-supersymmetric topological quantum field theory with electric-magnetic duality in physics.
description: 44 pp. Additional acknowledgments. Presented at "String Math 2022". To appear in ATMP
Educação Popular, Economia Solidária e Cultura de Paz
Creators: name: SANTOS, LUCIANA
Publisher: name: figshare
Year: 2022
Subjects: subject: Education
subject: 200299 Cultural Studies not elsewhere classified
subject: FOS: Other humanities

description: O presente texto apresenta reflexões sobre os princípios da educação popular, da economia solidária e da educação para a paz e para a convivência democrática, tendo como questão geradora quais as possibilidades de desenvolvimento de iniciativas de economia solidária em comunidades periféricas a partir de modelos pedagógicos baseados em princípios da educação popular e da cultura de paz. As reflexões aqui propostas foram semeadas e nutridas pelas videoaulas do Curso ‘Paulo Freire e a Educação Popular, da EaD Freiriana do Instituto Paulo Freire e conduzem para uma aproximação epistemológica entre os círculos de cultura e os círculos de construção de paz, enquanto pedagogias transformadoras centradas na educação para a paz e na convivência democrática e solidária.
Knowledge Equivalence in Digital Twins of Intelligent Systems
Creators: name: Zhang, Nan
name: Bahsoon, Rami
name: Tziritas, Nikos
name: Theodoropoulos, Georgios
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.6; D.2.11; I.2.4; I.2.11; I.2.6; C.3

description: A digital twin contains up-to-date data-driven models of the physical world being studied and can use simulation to optimise the physical world. However, the analysis made by the digital twin is valid and reliable only when the model is equivalent to the physical world. Maintaining such an equivalent model is challenging, especially when the physical systems being modelled are intelligent and autonomous. The paper focuses in particular on digital twin models of intelligent systems where the systems are knowledge-aware but with limited capability. The digital twin improves the acting of the physical system at a meta-level by accumulating more knowledge in the simulated environment. The modelling of such an intelligent physical system requires replicating the knowledge-awareness capability in the virtual space. Novel equivalence maintaining techniques are needed, especially in synchronising the knowledge between the model and the physical system. This paper proposes the notion of knowledge equivalence and an equivalence maintaining approach by knowledge comparison and updates. A quantitative analysis of the proposed approach confirms that compared to state equivalence, knowledge equivalence maintenance can tolerate deviation thus reducing unnecessary updates and achieve more Pareto efficient solutions for the trade-off between update overhead and simulation reliability.
description: 35 pages, 16 figures. In ACM Transactions on Modeling and Computer Simulation (TOMACS)