bluuebunny/crossref_metadata_2025 huggingface dataset:
Potenzial von vibroakustischen Metamaterialien am Beispiel eines Fahrzeugmodells/Potential of vibroacoustic metamaterials using a vehicle model as an example
Authors: Atzrodt Heiko , Appel Nico , Droste Marvin , Rieß Sebastian
Published: July 2022

Der Einsatz von Leichtbaustrukturen steigert die Effizienz heutiger und zukünftiger Maschinen und Fahrzeuge. Allerdings folgt aus der kontinuierlichen Massenreduktion eine steigende Empfindlichkeit gegenüber unerwünschten Schwingungsanregungen. Einen innovativen Ansatz zur Reduktion von Lärm und Schwingungen stellen vibroakustische Metamaterialien dar. Aufgrund einer speziell designten Mikrostruktur erzeugen vibroakustische Metamaterialien ein einstellbares Stoppbandverhalten in der Ausbreitung von Körper- und Luftschallwellen. Dadurch entstehen neue Möglichkeiten zur vibroakustischen Optimierung von Bauteilen. In dem vorliegenden Beitrag wird das Potenzial von vibroakustischen Metamaterialien am Beispiel eines Fahrzeugmodells demonstriert.
Assessment of the antimicrobial effect of silver nanoparticles synthesized from Coriandrum sativum
Authors: Barraza-Vergara Luisa F , Llinás-Giraldo María A , Albis Arrieta Alberto R , Medina Buelvas Ana M , Barros Martínez Anahí
Published: July 2022

In this study the antimicrobial effect of silver nanoparticles (AgNPs) synthesized from Coriandrum sativum (C. sativum) leaf extract was evaluated by varying the incubation temperature from 25 °C to 40 °C, for 24 h of exposure. AgNPs were characterized using Ultraviolet-Visible (UV-vis), and Transmission Electron (TEM) spectroscopy, evidencing the presence of nanoparticles of spherical morphology with average sizes of 5.7, 13.4, and 6.0 nm for nanoparticle concentrations of 1, 10, and 100 mM, respectively. The efficacy of nanoparticles as microbicidal agents was evaluated with the halo inhibition method, impregnating nanoparticles in sensi-discs on agar planted with ATCC standard Staphylococcus aureus (S. aureus), and clinically isolated Klebsiella pneumoniae (K. pneumoniae) and Pseudomonas aeruginosa (P. aeruginosa). AgNPs inhibited the growth of all three bacteria under all conditions. The clinically isolated bacteria obtained the smallest inhibitory diameters, with respect to the standard bacteria. Incubation temperature had a significant effect on all bacteria, with the greatest effect found with AgNPs-100mM at 25°C for P. aeruginosa and at 35°C for S. aureus and K. pneumoniae. These results showed the potential application against pathogenic microorganisms of AgNPs synthesized from C. sativum leaf in hospital environments within a temperature range from 25 to 40 °C.
Reseña histórica de la disciplina de fitopatología de Cenicafé
Authors: Cadena Gabriel , Gaitán Alvaro
Published: July 2022

Desde épocas remotas de la agricultura, las cosechas se han visto afectadas no solo por factores climáticos que no están bajo el control de los agricultores sino además por extrañas sintomatologías que periódicamente arrasan los cultivos y producen hambre, pérdidas económicas y desesperanza. Con el desarrollo del conocimiento, esos síntomas dejaron de ser vistos como la causa y se identificaron a los microorganismos como los verdaderos agentes causantes de los desequilibrios fisiológicos que afectaban a las plantas. Las grandes epidemias de la gota de la papa en Irlanda de la roya del cafeto en Ceylan, ilustran dramáticamente la importancia y el potencial económico de las enfermedades vegetales. En este capítulo se resumen las actividades llevadas a cabo por la Sección de Fitopatología durante sus 70 años de existencia, cumpliendo con la voluntad de los cafeteros de despejar incógnitas y generar técnicas referentes a las enfermedades que afectan al café.
Considering Leaf Extract of Miracle Tree (Moringa Oleifera L.) and Potassium Nutrition for Contending Cotton Leaf Curl Virus (CLCuV) Disease of Cotton (Gossypium Hirsutum L.)
Authors: Panhwar Bushra Urooj , Keerio Abdullah , Shah Nargis , Panhwar Aasia Akbar , Panhwar Rabia Begum , Magsi Wazir Ahmed , Ujjan Javed Ahmed , Arain Juvaria Afzal
Published: July 2022

Cotton leaf curl virus disease (CLCuV) is a devastating biotic factor that imposed crop productivity a huge loss. To battle this issue this study was assessed in 2019 for the evaluation of the response of leaf extract of miracle tree (Moringa oleifera L.) and potassium (K) nutrition to mitigate the plague of CLCuV disease in cotton variety CRIS-129. Treatments have consisted of the various K dosses Viz., 0, 100, and 150 kg K2SO4 ha-1, and 3% leaf extract of moringa was sprayed at 30, 60, and 90 days after emergence. Results regarding yield components i-e boll weight (g) and seed index (g) were increased by increasing K application and foliar spray of moringa leaf extract but statistically non-significant (p<0.05). However, seed cotton yield and K contents in cotton leaves were significantly increased with all the treatments. The maximum seed cotton yield (2620 kg ha-1) was achieved with 150 kg K2O ha-1 application and it was increased by about 52% over the control treatment. In the case of incidence % of CLCuV disease, both K nutrition as well as foliar spray played a significant role and CLCuV intensity reduced with increasing rate of K doses and foliar sprays.
COMAP Early Science. VI. A First Look at the COMAP Galactic Plane Survey
Authors: Rennie Thomas J. , Harper Stuart E. , Dickinson Clive , Philip Liju , Cleary Kieran A. , Bond Richard J. , Borowska Jowita , Breysse Patrick C. , Catha Morgan , Cepeda-Arroita Roke , Chung Dongwoo T. , Church Sarah E. , Dunne Delaney A. , Eriksen Hans Kristian , Foss Marie Kristine , Gaier Todd , Gundersen Joshua Ott , Harris Andrew I. , Hensley Brandon , Hobbs Richard , Ihle Håvard T. , Lamb James W. , Lawrence Charles R. , Lunde Jonas G. S. , Paladini Roberta , Pearson Timothy J. , Rasmussen Maren , Readhead Anthony C. S. , Stutzer Nils-Ole , Watts Duncan J. , Wehus Ingunn Kathrine , Woody David P. ,   (COMAP Collaboration)
Published: July 2022

We present early results from the CO Mapping Array Project (COMAP) Galactic Plane Survey conducted between 2019 June and 2021 April, spanning 20° < ℓ < 40° in Galactic longitude and ∣b∣ < 1.°5 in Galactic latitude with an angular resolution of 4.′5. We present initial results from the first part of the survey, including the diffuse emission and spectral energy distributions of H ii regions and supernova remnants (SNRs). Using low- and high-frequency surveys to constrain free–free and thermal dust emission contributions, we find evidence of excess flux density at 30 GHz in six regions, which we interpret as anomalous microwave emission. Furthermore we model ultracompact H ii contributions using data from the 5 GHz CORNISH catalog and reject these as the cause of the 30 GHz excess. Six known SNRs are detected at 30 GHz, and we measure spectral indices consistent with the literature or show evidence of steepening. The flux density of the SNR W44 at 30 GHz is consistent with a power-law extrapolation from lower frequencies with no indication of spectral steepening in contrast with recent results from the Sardinia Radio Telescope. We also extract five hydrogen radio recombination lines (RRLs) to map the warm ionized gas, which can be used to estimate electron temperatures or to constrain continuum free–free emission. The full COMAP Galactic Plane Survey, to be released in 2023/2024, will span ℓ ∼ 20°–220° and will be the first large-scale radio continuum and RRL survey at 30 GHz with 4.′5 resolution.
Characteristics of Multi-scale Current Sheets in the Solar Wind at 1 au Associated with Magnetic Reconnection and the Case for a Heliospheric Current Sheet Avalanche
Authors: Eriksson Stefan , Swisdak Marc , Weygand James M. , Mallet Alfred , Newman David L. , Lapenta Giovanni , Wilson III Lynn B. , Turner Drew L. , Larsen Bjorn
Published: July 2022

Wind spacecraft measurements are analyzed to obtain a current sheet (CS) normal width d
cs distribution of 3374 confirmed magnetic reconnection exhausts in the ecliptic plane of the solar wind at 1 au. The d
cs distribution displays a nearly exponential decay from a peak at d
cs = 25 d

i
to a median at d
cs = 85 d

i
and a 95th percentile at d
cs = 905 d

i
with a maximum exhaust width at d
cs = 8077 d

i
. A magnetic field θ-rotation angle distribution increases linearly from a relatively few high-shear events toward a broad peak at 35° < θ < 65°. The azimuthal ϕ angles of the CS normal directions of 430 thick d
cs ≥ 500 d

i
exhausts are consistent with a dominant Parker-spiral magnetic field and a CS normal along the ortho-Parker direction. The CS normal orientations of 370 kinetic-scale d
cs < 25 d

i
exhausts are isotropic in contrast, and likely associated with Alfvénic solar wind turbulence. We propose that the alignment of exhaust normal directions from narrow d
cs ∼ 15–25 d

i
widths to well beyond d
cs ∼ 500 d

i
with an ortho-Parker azimuthal direction of a large-scale heliospheric current sheet (HCS) is a consequence of CS bifurcation and turbulence within the HCS exhaust that may trigger reconnection of the adjacent pair of bifurcated CSs. The proposed HCS-avalanche scenario suggests that the underlying large-scale parent HCS closer to the Sun evolves with heliocentric distance to fracture into many, more or less aligned, secondary CSs due to reconnection. A few wide exhaust-associated HCS-like CSs could represent a population of HCSs that failed to reconnect as frequently between the Sun and 1 au as other HCSs.
The Time Domain Spectroscopic Survey: Changing-look Quasar Candidates from Multi-epoch Spectroscopy in SDSS-IV
Authors: Green Paul J. , Pulgarin-Duque Lina , Anderson Scott F. , MacLeod Chelsea L. , Eracleous Michael , Ruan John J. , Runnoe Jessie , Graham Matthew , Roulston Benjamin R. , Schneider Donald P. , Ahlf Austin , Bizyaev Dmitry , Brownstein Joel R. , del Casal Sonia Joesephine , Dodd Sierra A. , Hoover Daniel , Matt Cayenne , Merloni Andrea , Pan Kaike , Ramirez Arnulfo , Ridder Margaret , Moseley Serena
Published: July 2022

Active galactic nuclei (AGN) can vary significantly in their rest-frame optical/UV continuum emission, and with strong associated changes in broad line emission, on much shorter timescales than predicted by standard models of accretion disks around supermassive black holes. Most such changing-look or changing-state AGN—and at higher luminosities, changing-look quasars (CLQs)—have been found via spectroscopic follow-up of known quasars showing strong photometric variability. The Time Domain Spectroscopic Survey of the Sloan Digital Sky Survey IV (SDSS-IV) includes repeat spectroscopy of large numbers of previously known quasars, many selected irrespective of photometric variability, and with spectral epochs separated by months to decades. Our visual examination of these repeat spectra for strong broad line variability yielded 61 newly discovered CLQ candidates. We quantitatively compare spectral epochs to measure changes in continuum and Hβ broad line emission, finding 19 CLQs, of which 15 are newly recognized. The parent sample includes only broad line quasars, so our study tends to find objects that have dimmed, i.e., turn-off CLQs. However, we nevertheless find four turn-on CLQs that meet our criteria, albeit with broad lines in both dim and bright states. We study the response of Hβ and Mg ii emission lines to continuum changes. The Eddington ratios of CLQs are low, and/or their Hβ broad line width is large relative to the overall quasar population. Repeat quasar spectroscopy in the upcoming SDSS-V black hole Mapper program will reveal significant numbers of CLQs, enhancing our understanding of the frequency and duty cycle of such strong variability, and the physics and dynamics of the phenomenon.
Evolutionary insights and constraints from the nervous systems and behavior of cavefish
Authors: Soares Daphne
Published: July 2022

Caves and other subterranean habitats represent one of the most challenging environments on the planet. Bony fishes are one of the few vertebrate groups that have successfully colonized and are completely restricted to those habitats. Despite being known to science for over 150 years, only recently have cavefishes become model systems for evolutionary studies pertaining the nervous system. Several cavefishes, such as the Mexican characid Astyanax mexicanus, have provided valuable insights into how fishes have evolved to cope with life in perpetual darkness. Here, I summarize the current understanding of nonvisual sensory modalities and divergent social behavior in the Mexican Astyanax mexicanus, the Brazilian Eigenmannia vicentespelea and the Ecuadorian Astroblepus pholeter. Only future comparative studies nested within well-resolved phylogenies will clarify the sensory adaptation of fishes to subterranean habitats.
A molecular characterization method for an apparently native ecotype of Phalaris arundinacea (Poaceae) in western Canada and Alaska
Authors: Percy Diana , Cronk Quentin
Published: July 2022

Phalaris arundinacea L. (reed canary grass) is a widely occurring grass throughout the northern hemisphere. In north America it is thought to consist of introduced agricultural forms from Europe as well as native populations. It is likely that a \"cryptic invasion\" is progressing, with vigorous invasive biotypes ousting native occurrences, a process that is not readily recorded when the invader is conspecific with natives. We surveyed Phalaris arundinacea in western Canada using sequences of the internal transcribed spacer (ITS) of the nuclear ribosomal DNA. Two ITS ribotypes were discovered: one full length (ITS-long) and one with a seven base pair deletion (ITS-short). ITS-long plants are generally associated with anthropogenic or disturbed grassland habitats, often where commercial seed is likely to have been sown. ITS-short plants are more likely to be found in remote areas, in riparian and lacustrine habitats, and are thus candidates for native status. In addition, ITS-long plants have fixed heterozygosity indicating possible polyploidy. Phylogenetic analysis reveals that ITS-short is a unique mutation that characterizes an infraspecific clade. We designed an efficient PCR-based assay that allows sizing of a 238/245 base pair fragment in a capillary sequencer.
The new Australian leaf-curling orb-weaving spider genus Leviana (Araneae, Araneidae)
Authors: Framenau Volker W. , Kuntner Matjaž
Published: July 2022

The new Australian orb-weaving spider genusLevianagen. nov.is described to include five species, all known from both sexes:Leviana dimidiata(L. Koch, 1871)comb. nov.(type species) (=Epeira sylvicolaRainbow, 1897syn. nov.),L. cincinnatasp. nov.,L. foliumsp. nov.,L. minimasp. nov.andL. mulieraria(Keyserling, 1887)comb. nov.Male pedipalp morphology, specifically the presence of a single patella spine and the median apophysis forming an arch over the radix, placeLevianagen. nov.in the informal Australian ‘backobourkiine’ clade; however, the genus differs from all other genera of this group by the presence of a spine inside the basal median apophysis arch of the male pedipalp, an epigyne that is wider than long with a scape that is approximately as long as the epigyne (but often broken off) and a lack of humeral humps on the elongate ovoid abdomen. In addition, unlike any other backobourkiine,Levianagen. nov.incorporate a rolled leaf as retreat into the periphery of their web.Levianagen. nov.species exhibit only a moderate sexual size dimorphism with female to male ratios between 1.3 and 1.7.Levianagen. nov.occurs in eastern Australia from northern Queensland in the north to Victoria in the south, with a single tropical species,L. mulierariacomb. nov., spreading into northern Western Australia.
Ces femmes aux prises avec les injures islamophobes
Authors: Ajbli Fatiha
Published: July 2022

Cet article porte sur les injures islamophobes qui ciblent les femmes musulmanes portant le voile dans le contexte français. À partir des théories de la performativité du langage, il examine les propos injurieux tenus par des figures autorisées du débat public, de même que les relations de pouvoir dans lesquels ils s’insèrent. Plus largement, il s’agit d’apporter un éclairage nouveau sur la vulnérabilité linguistique des musulmanes visibles et sur le rôle des injures islamophobes dans le maintien d’un certain ordre laïc des places et des espaces. Une attention particulière est portée par ailleurs à l’étroite relation que l’islamophobie discursive entretient avec le registre de la laideur. Nous montrons enfin que la vulnérabilité linguistique des femmes musulmanes rend possible l’émergence de contre-discours à la fois réparateurs et réhabilitants.
L’indépendantisme catalan actuel a-t-il abandonné les mécanismes de l’utopie ?
Authors: Trépier Cyril
Published: July 2022

Officiellement au pouvoir depuis 2012 au gouvernement autonome, l’indépendantisme catalan n’a jamais abandonné sa posture militante. Ce mouvement revendique deux territoires à la fois, et a en partie résolu la question de la violence armée. Le contenu de l’indépendance reste à préciser, alors que trois partis rivaux la revendiquent. Enfin, l’indépendantisme catalan a bénéficié de l’effondrement de plusieurs autres mouvements politiques et syndicaux pour imposer son discours sur l’avenir du territoire. Mais, son fonctionnement continue à mobiliser les mécanismes de l’utopie.
Le stop motion : singularité cinématographique et alternative aux simulations en image de synthèse
Authors: Lepot Cyril
Published: July 2022

Chez Eisenstein on découvre comment dans le cinéma de prise de vues réelles, il est déjà possible de détourner un élément du représenté pour en faire le moyen d’une représentation qui le dépasse au point de lui être étranger, dans la mesure où il sert un propos tout autre que celui de son contexte d’origine. Dans le stop motion la mise en mouvement fondée sur un type de « montage » image par image permet non seulement de réanimer le monde, mais aussi de transfigurer les objets et leur matérialité même. L’adhésion au contenu profilmique ne concerne donc plus uniquement les contenus généraux et narratifs de la représentation (comme le lieu ou la temporalité), mais aussi la matérialité même des objets.
Le cirque au-delà du répertoire : explorations équestres et acrobatiques en bord de piste
Authors: Dray Charlène , Warnery Paul
Published: July 2022

En s’appuyant sur leurs pratiques de recherche-création en art équestre et en acrobatie aérienne, les deux auteurs proposent une réflexion croisée sur le cirque. De l’entraînement à la représentation publique, cet article, d’une part, s’intéresse à la notion de répertoire technique qui provoque parfois souffrance et lassitude pour celui qui les pratique, et, d’autre part, observe dans quelle mesure la démonstration de ce répertoire tend à normer les gestes et les attitudes des corps humains ou animaux en scène. Au-delà du cirque, c’est en convoquant des notions transdisciplinaires que certains processus de création engendrent des formes qui les extirpent de toute classification et laissent entrevoir un renouvellement des esthétiques et des modes de pensée du corps en scène.
Deux concepts pour penser l’expérience de l’art : la fruition et l’actuation
Authors: Fabbricatore Arianna B.
Published: July 2022

Qu’est-ce que l’expérience artistique nous apprend de l’art ? C’est la question à l’horizon de cette étude dont le but est de jeter les bases pour repenser la spécificité de cette expérience dans le contexte actuel. En effet, l’offre artistique contemporaine a bouleversé le rôle du spectateur, sa relation avec l’œuvre ainsi que l’idée d’art tout court. Qu’est-ce qu’une œuvre d’art aujourd’hui ? Faut-il parler encore de spectateur ? Peut-on concevoir l’expérience de l’art au-delà du conflit entre l’ancien idéal de contemplation et les exigences performatives actuelles ? Avec deux nouveaux outils conceptuels, cet article propose de frayer un chemin parmi quelques-uns des préjugés de la tradition philosophique afin de formuler les premières hypothèses pour repenser la théorie de l’art.
Saint Antoine exposé. Représenter la tentation : questionnements et enjeux. Lecture de représentations iconographiques de la tentation de saint Antoine aux XV e et XVI e siècles
Authors: Leclaire Céline
Published: July 2022

À partir d’un corpus d’une trentaine de représentations picturales de la tentation de saint Antoine le Grand réalisées aux xv e  et xvi e  siècles, cet article étudie la manière dont l’art peut offrir une expérience de la tentation, c’est-à-dire la manière dont une œuvre parvient à rendre compte d’une réalité irreprésentable (soit d’un moment de bascule potentielle entre le bien et le mal). Il envisage la réflexion suscitée par ces œuvres sur la condition humaine, sur le rapport au mal, au corps, et surtout sur le pouvoir de l’art, comme si le tableau mettait en péril son principe même : quelle est la source des images ? Qui tente qui ?
Le sens de la transparence
Authors: Zapero David
Published: July 2022

Au cœur du Tractatus logico-philosophicus est le projet de délimiter « la forme générale de la proposition ». Nous nous intéressons à un versant de ce projet : l’analyse de la notion de vérité. Nous examinons cette analyse et nous identifions quelques-unes de ses conséquences majeures. Puis, nous revenons sur les remarques que fait Wittgenstein sur cette analyse dans les Recherches philosophiques , où l’interrogation sur la possibilité d’une telle analyse sert à remettre en question le projet même du Tractatus .
Des faits dans la perception aux faits dans la proposition : l’articulation entre signe et image chez Hermann von Helmholtz et Ludwig Wittgenstein
Authors: Plaud Sabine
Published: July 2022

La théorie de la perception proposée par Hermann von Helmholtz à la fin du XX e  siècle indique que nos sensations sont autant de signes du donné sensible, et que ces signes se combinent entre eux de façon à constituer des images projectives de la réalité perçue. L'objet de cette contribution sera de comparer cette théorie de la perception comme « langage de l'image » à la théorie de la proposition-image développée par Ludwig Wittgenstein dans le Tractatus logico-philosophicus , qui présente la proposition comme un modèle de la réalité, à travers un paradigme hérité de la mécanique et de la philosophie des sciences du tournant du XX e  siècle.
The Tractatus and the ethical tradition
Authors: Donatelli Piergiorgio
Published: July 2022

Je pose une question concernant la place du Tractatus de Wittgenstein dans la tradition éthique. Le Tractatus et la tradition éthique Les remarques que je ferai sont à considérer dans le contexte d'une interprétation du Tractatus qui a été qualifiée de lecture résolue de cette œuvre, ainsi que de la philosophie de Wittgenstein en général Comme l'a écrit Cora Diamond, le Tractatus travaille sur la libération des besoins et des désirs philosophiques, une libération de la philosophie effectuée avec des outils philosophiques : la situation du Tractatus est similaire à celle évoquée dans les Recherches et dans l'œuvre ultérieure, qui se consacre également au projet de se libérer de la philosophie pour le bien de la philosophie.
Salinity tolerance selection of doubled-haploid rice lines based on selection index and factor analysis
Authors: Anshori Muhammad Fuad , Purwoko Bambang Sapta , Dewi Iswari Saraswati , Suwarno Willy Bayuardi , Ardie Sintho Wahyuning
Published: July 2022

The development of tolerant rice varieties using doubled-haploid technology is necessary to speed up the release of a variety tolerant to salinity stress. However, this requires a reliable screening method and selection index model for enhancing selection effectiveness. One approach is through the development of a selection index based on factor analysis under soil salinity screening in the greenhouse. The objective of this study was to develop a selection index model based on factor analysis and select tolerant doubled-haploid lines under high salinity conditions. The experimental design used was a split-plot design with salinity stress treatments as the main plot, i.e., normal (0 mM NaCl) and saline (25 mM NaCl ~ 5.6–5.8 dS/m) and 42 genotypes as the subplot. The genotypes consisted of 36 doubled-haploid lines, four commercial varieties, and two check varieties. The results indicated that a salinity selection index model involving yield and productive tiller traits could be used for selecting rice genotypes tolerant to salinity stress in soil artificial screening. This index which was developed through a combination of factor analysis, stress tolerance index (STI), and path analyses have identified 15 doubled haploid rice lines which were considered as good tolerant lines under salinity stress in soil artificial screening.
Dynamics of delayed cellular neural networks in the Stepanov pseudo almost automorphic space
Authors: Arbi Adnène , Cao Jinde , Es-saiydy Mohssine , Zarhouni Mohammed , Zitane Mohamed
Published: July 2022

Pseudo almost automorphy (PAA) is a natural generalization of Bochner almost automorphy and Stepanov almost automorphy. Therefore, the results of the existence of PAA solutions of differential equations are few, and the results of the existence of pseudo almost automorphic solutions of difference equations are rare. In this work, we are concerned with a model of delayed cellular neural networks (CNNs). The delays are considered in varying-time form. By the Banach's fixed point theorem, Stepanov like PAA, and constructing a novel Lyapunov functional, we fixed a sufficient criteria that agreement the existence and the Stepanov-exponential stability of Stepanov-like PAA solution of this model of CNNs are obtained. In addition, a numerical example and simulations are performed to verify our theoretical results.
Exploring the impact of green HRM practices on pro-environmental behavior via interplay of organization citizenship behavior
Authors: Kakar Abdul Samad , Khan Mrestyal
Published: July 2022

Using Green human resource management practices (HRMPs) as a multi-component construct, this study investigated the influence of bundle of Green HRMPs on pro-environmental behavior (Pro-EB) and organizational citizenship behavior towards the environment (OCBE), and examined the mediating effect of OCBE as a psychological mechanism that defines Green HRMPs and Pro-EB relationships. Data were obtained using self-administered questionnaires from a sample of 247 full-time academics working in public sector higher education institutions of Pakistan. The hypotheses were verified using partial least squares structural equation modelling (PLS-SEM). The results revealed that Green HRMPs bundle had a significant and positive effect on both Pro-EB and OCBE, and OCBE, in return, had a positive relationship with Pro-EB. It was further revealed that OCBE positively mediated the association between Green HRMPs bundles and Pro-EB. The originality of the study lies in conceptualizing Green HRMPs bundles as a multi-component construct and examining the relationships between Green HRMPs bundle, OCBE, and Pro-EB in the context of Pakistan's higher education institutions. Besides, exploring OCBE as a mediator between Green HRMPs bundles and Pro-EB is one of the novel contributions of this study. This study helps management and practitioners in developing Green strategies that can promote Green and Pro-EB among academics/faculty members.
Semi-analytical and numerical study of fractal fractional nonlinear system under Caputo fractional derivative
Authors: Algahtani Obaid , Saifullah Sayed , Ali Amir
Published: July 2022

The article aims to investigate the fractional Drinfeld-Sokolov-Wilson system with fractal dimensions under the power-law kernel. The integral transform with the Adomian decomposition technique is applied to investigate the general series solution as well as study the applications of the considered model with fractal-fractional dimensions. For validity, a numerical case with appropriate subsidiary conditions is considered with a detailed numerical/physical interpretation. The absolute error in the considered exact and obtained series solutions is also presented. From the obtained results, it is revealed that minimizing the fractal dimension reinforces the amplitude of the solitary wave solution. Moreover, one can see that reducing the fractional order $ \alpha $ marginally reduces the amplitude as well as alters the nature of the solitonic waves. It is also revealed that for insignificant values of time, solutions of the coupled system in the form of solitary waves are in good agreement. However, when one of the parameters (fractal/fractional) is one and time increases, the amplitude of the system also increases. From the error analysis, it is noted that the absolute error in the solutions reduces rapidly when $ x $ enlarges at small-time $ t $, whereas, increment in iterations decreases error in the system. Finally, the results show that the considered method is a significant mathematical approach for studying linear/nonlinear FPDE's and therefore can be extensively applied to other physical models.
Analysis of mobility based COVID-19 epidemic model using Federated Multitask Learning
Authors: Kumaresan M , Kumar M Senthil , Muthukumar Nehal
Published: July 2022

Aggregating a massive amount of disease-related data from heterogeneous devices, a distributed learning framework called Federated Learning(FL) is employed. But, FL suffers in distributing the global model, due to the heterogeneity of local data distributions. To overcome this issue, personalized models can be learned by using Federated multitask learning(FMTL). Due to the heterogeneous data from distributed environment, we propose a personalized model learned by federated multitask learning (FMTL) to predict the updated infection rate of COVID-19 in the USA using a mobility-based SEIR model. Furthermore, using a mobility-based SEIR model with an additional constraint we can analyze the availability of beds. We have used the real-time mobility data sets in various states of the USA during the years 2020 and 2021. We have chosen five states for the study and we observe that there exists a correlation among the number of COVID-19 infected cases even though the rate of spread in each case is different. We have considered each US state as a node in the federated learning environment and a linear regression model is built at each node. Our experimental results show that the root-mean-square percentage error for the actual and prediction of COVID-19 cases is low for Colorado state and high for Minnesota state. Using a mobility-based SEIR simulation model, we conclude that it will take at least 400 days to reach extinction when there is no proper vaccination or social distance.
Informative tests in signaling environments
Authors: Weksler Ran , Zik Boaz
Published: July 2022

We study a receiver's learning problem of choosing an informative test in a signaling environment. Each test induces a signaling subgame. Thus, in addition to its direct effect on the receiver's information, a test has an indirect effect through the sender's signaling strategy. We show that the informativeness of signaling in the equilibrium that a test induces depends on the relative informativeness of the test's high and low grades. Consequently, we find that the receiver's preference relation over tests needs not comply with Blackwell's (1951) order. Our findings may shed light on phenomena such as grade inflation and information coarsening.
Prior‐free dynamic allocation under limited liability
Authors: Chassang Sylvain , Kapon Samuel
Published: July 2022

A principal seeks to efficiently allocate a productive public resource to a number of possible users. Vickrey–Clarke–Groves (VCG) mechanisms provide a detail‐free way to do so provided users have deep pockets. In practice however, users may have limited resources. We study a dynamic allocation problem in which participants have limited liability: transfers are made ex post, and only if the productive efforts of participants are successful. We show that it is possible to approximate the performance of the pivot VCG mechanism using limited liability detail‐free mechanisms that selectively ignore reports from participants who cannot make their promised payments. A complementary use of cautiousness and forgiveness achieves approximate renegotiation‐proofness. We emphasize the use of prior‐free online optimization techniques to approximate aggregate incentive properties of the pivot mechanism.
Heterogeneity in decentralized asset markets
Authors: Hugonnier Julien , Lester Benjamin , Weill Pierre-Olivier
Published: July 2022

We study a canonical model of decentralized exchange for a durable good or asset, where agents are assumed to have time‐varying, heterogeneous utility types. Whereas the existing literature has focused on the special case of two types, we allow agents' utility to be drawn from an arbitrary distribution. Our main contribution is methodological: we provide a solution technique that delivers a complete characterization of the equilibrium, in closed form, both in and out of the steady state. This characterization offers a richer framework for confronting data from real‐world markets and reveals a number of new economic insights. In particular, we show that heterogeneity magnifies the impact of frictions on equilibrium outcomes and that this impact is more pronounced on price levels than on price dispersion and welfare.
Las voces del daño
Authors: Sánchez Madrid Nuria
Published: July 2022

Una de las dimensiones más elusivas del análisis de las formas del daño en las sociedades contemporáneas remite a los dispositivos epistémicos, con frecuencia naturalizados, que impiden despertar ante ellas. Precisamente por ello resulta relevante indagar en la correlación entre estructuras epistémicas y modelos de sociedad en el contexto de la racionalidad neoliberal, cuya interacción impacta de manera compleja en las construcciones subjetivas y la formación de horizontes prácticos, generando además una trama de emociones a la medida de esos marcos cognitivos. Más allá de los paradigmas distributivos en la reflexión sobre la justicia, la atención al desigual reparto de las voces en los espacios sociales permite a la reflexión ética reconocer aquellas zonas en que la experiencia de la negatividad moral no encuentra las herramientas adecuadas para ser percibida y narrada, lo que representa para el sujeto dañado una segunda muerte social. Cobrar conciencia de los marcos perceptivos y discursivos desde los que obramos y analizamos la vida social parece formar parte, pues, de una transformación no ideal de los mismos, atenta a la facticidad de los niveles de interdependencia y mutualidad cultural y social en que los seres humanos se encuentran indefectiblemente.
El telos en el mundo: sobre historia, evolución y progreso en Kant
Authors: Pessis García Begoña
Published: July 2022

El siguiente artículo se propone una aproximación al problema de la consumación empírica del programa teleológico de la razón práctica en Kant. En otras palabras, se inquiere por la posibilidad de llevar a cabo el fin final en el mundo. La naturaleza, en definitiva, es el territorio de los efectos de la causalidad libre y del bien supremo y no solo de la causalidad mecánica. Concretamente, me enfocaré en el ámbito de la filosofía de la historia kantiana, interrogándola respecto a la posibilidad de una evolución biológica y la posibilidad de una evolución moral de la humanidad.
Pasar a la ofensiva. Irrupción e impacto del discurso neomarxista en la esfera de los comunes digitales
Authors: Zamora García Javier , Pérez Fernández Daniel
Published: July 2022

El presente texto explora desde la perspectiva de la historia conceptual la evolución del término comunes digitales (digital commons) desde sus primeras apariciones. En particular, se rastrea la forma en que el significado del término comunes digitales sufre la influencia de una nueva modulación del término comunes planteada desde coordenadas neomarxistas. Explorando la forma en que esta acepción neomarxista surgió tras la crisis de 2008 gracias a las intervenciones discursivas de una serie de autores más o menos vinculados con el Midnight Notes Collective, analizamos posteriormente el grado de penetración de esta nueva concepción de los comunes en el ámbito de los comunes digitales. A nuestro juicio, la dispar recepción que reciben estos postulados confirma el carácter esencialmente controvertido del concepto de comunes digitales.
Cuidar en común
Authors: Liedo Belén
Published: July 2022

Los comunes y los cuidados son dos temas que han ganado presencia en los discursos públicos y políticos de los últimos años, y parecen guardar una especial afinidad entre sí. En este artículo, propongo que hay dos formas diferentes de entender la relación entre los comunes y los cuidados, argumentando a favor de una de ellas: el cuidado en común o cuidado comunitario. De esta forma, planteo que los cuidados pueden ser definidos como aquello que se hace para mantener ciertos comunes, forjando los vínculos que dan forma a las comunidades de acuerdo con unos estándares éticos. Estos estándares pueden ser establecidos de acuerdo con la ética del cuidado y en continuación con la tradición política de los comunes.
¿Es posible apropiarse de la vida cultural? Mercantilización y patrimonialización de comunes culturales
Authors: Cejudo Rafael
Published: July 2022

Los bienes comunes culturales constituyen tanto un acervo común existente de hecho, como la aspiración a que dicho caudal compartido sea lo mayor y más rico posible. La vida cultural es un bien común específico que representa tal aspiración y que constituye uno de los derechos humanos recogidos en la Declaración Universal de 1948. Tras analizarse las características de este bien común cultural, y entre ellas su dimensión global, se aborda cómo la privatización de otros bienes comunes culturales afecta a la vida cultural de la humanidad, así como la relación entre vida cultural y apropiación cultural.
Ciencia moderna y capitalismo: notas en torno a un doble olvido del mundo de la vida
Authors: Quintana-Montes Jorge Luis
Published: July 2022

En el artículo se desarrolla un diálogo entre las obras de Marx, Husserl y Heidegger, en torno al problema de la matematización en su doble perspectiva: científica y económica. En un primer momento, se expondrá el modo en que la ideación, así como la abstracción real, suponen un olvido del mundo de la vida. En un segundo momento, nos concentraremos en la disolución del patrón oro y en el capital ficticio, para mostrar la expresión contemporánea -en una economía obsesionada con la reproducción de la riqueza abstracta- del mencionado olvido.
Construyendo Utopía: de la teoría a la praxis
Authors: Klocker Dante E.
Published: July 2022

Se ha sostenido a menudo que la preocupación fundamental de Utopía, de Tomás Moro habría sido más bien la de establecer y justificar teóricamente un modelo ideal de sociedad y no tanto la de determinar las mediaciones prácticas requeridas para su instauración en el mundo real. Aun si admitiéramos esta extendida interpretación, considero que es posible reconocer en el texto indicios suficientes que sugieren dos vías diferentes y hasta contrapuestas según las cuales podría tener lugar la construcción política de Utopía. La primera y, en rigor, la única que la obra estaría intentando proponer es individual, elitista, coactiva y descendente. La segunda, que, por su parte, parece estar siendo presentada allí más bien con la intención de evitar que llegue a realizarse, es, pues, por el contrario, colectiva, popular, insurreccional y ascendente. En el presente trabajo se intenta, en primer lugar, mostrar de qué manera y a través de qué argumentos son expuestos estos dos modelos de acción, reparando, además, en las importantes dificultades entrañadas en el modelo que se pretende proponer. Luego se desarrollan, pues, dos realizaciones históricas inmediatamente posteriores a la publicación de Utopía que los ilustran. Y finalmente se busca establecer qué relación mantienen dichas vías entre sí según el planteamiento de la obra y, asimismo, sugerir qué otra relación podrían mantener si se ensayara un punto de vista diferente.
Resource Use Overlap by Sympatric Wintering American Black Ducks and Mallards in Tennessee
Authors: Davis J. Brian , Boudreau Melanie R. , Monroe Kira C. , Kaminski Richard M.
Published: July 2022

American black ducks Anas rubripes are declining in traditionally important wintering areas in the south-central Mississippi flyway. Understanding resource exploitation by black ducks and morphologically similar and co-existing mallards Anas platyrhynchos during winter may provide insight into competitive interactions that could exacerbate these declines. We radiomarked female black ducks and mallards at the Tennessee National Wildlife Refuge, Tennessee, USA, during winter 2011–2012. We hypothesized that resource partitioning may occur to avoid or lessen interspecific competition between the two species and examined this possibility in the context of home range overlap, resource selection and proportional resource use, niche breadth, and inter- and intraspecific resource overlap. Black duck and mallard home ranges were similar in area, with black duck individual home ranges ranging from 15 to 77 km2 and mallards from 21 to 72 km2 in size; 93% of the total area used by each species overlapped. Black ducks selected emergent wetlands 1.2× more than mallards, and mallards selected cultivated lands 2× more than black ducks. However, there were only minor differences between species in their proportional use of landcover types, and there were no temporal differences in resource selection at diurnal or seasonal scales. Additionally, while black ducks and mallards had moderate and small niche breadths (niche breadth = 0.47 and 0.34, respectively), the two species had a substantial degree of inter- and intraspecific resource overlap. Our results indicate these species do not competitively exclude each other spatiotemporally. Further research is needed to understand fine-scale interactions between these species and other factors that may be affecting black duck declines in the south-central Mississippi flyway, such as effects occurring in the breeding grounds or the potential influences of climate on northern shifts in duck distribution.
Du déplacement forcé à l’auto-défense.
Authors: Colombo Pamela
Published: July 2022

Les programmes de villagisation forcée mis en place durant la guerre froide globale permettent d’explorer le processus de « miliciarisation forcée » de la population civile regroupée dans ces villages. Si l’enrôlement de personnes déplacées dans des milices semble avoir été une constante dans le cadre de ces programmes, comment la villagisation forcée est-elle devenue tout à la fois un outil pour combattre la « menace communiste », un programme de « développement forcé » et un dispositif destiné à forcer la miliciarisation de la population déplacée ? À partir de l’analyse de plusieurs cas en Amérique latine, et notamment celui de l’Argentine, nous voulons comprendre pourquoi le dispositif milicien n’a pas toujours eu le même degré de systématicité ni le même degré de confiance des armées locales vis-à-vis de la population à miliciariser. Cet article se veut avant tout une contribution critique à l’étude de l’appropriation locale d’une technique de contre-insurrection et de développement forcé ainsi qu’une réflexion sur les effets à long terme sur la population ayant subi un processus de miliciarisation forcée.
Le régime milicien en Afghanistan
Authors: Baczko Adam , Dorronsoro Gilles
Published: July 2022

Le régime milicien mis en place par les pays occidentaux entre 2001 et 2021 en Afghanistan donne à voir une forme radicale d’économie transnationale de la violence et ses effets socio-politiques. En Afghanistan, comme ailleurs, la formation de milices est généralement justifiée comme le palliatif d’un manque de contrôle étatique sur le territoire. Or, la genèse des milices en Afghanistan montre qu’elle est d’abord une modalité de l’intervention internationale, plus qu’une réaction à l’insécurité. Les militaires américains apposent en effet une anthropologie imaginaire qui fait de la société afghane un agrégat d’isolats locaux, apolitiques et rétifs à toute forme d’interférence étatique. Les dispositifs miliciens qu’ils mettent en place produisent une nouvelle économie transnationale de la violence et renforcent des acteurs supposément locaux aux dépens des institutions officielles.
Le mythe des sahwa comme modèle milicien
Authors: Quesnay Arthur
Published: July 2022

Basé sur plusieurs mois de terrain dans les zones arabes sunnites irakiennes entre 2009 et 2021, cet article revient sur le phénomène des milices tribales, les sahwa, aujourd’hui présentées comme un modèle positif de contre insurrection alors que le caractère artificiel de sa construction et la concentration du pouvoir entre les mains d’entrepreneurs de violences, autoproclamés chefs tribaux, a débouché sur une déstructuration de toute alternative politique et sociale dans les régions arabes sunnites. Il interroge la manière dont l’occupation américaine en Irak tente de contrôler la population arabe sunnite en construisant un mode de gouvernance transnational basé sur des dispositifs miliciens en charge du territoire.
Dédicaces dans le Romant satyrique (1624) et dans le Romant des Indes (1625) de Jean de Lannel : un cas de complexe de Pygmalion ?
Authors: Briot Frédéric
Published: July 2022

Jean de Lannel publie à un an d’écart Le Romant satyrique (1624) et Le Romant des Indes (1625). Ce dernier apparaît comme une version plus exotisée et à peine retouchée du premier. Seuls changent réellement le titre, l’épître au lecteur, l’épître dédicatoire, et le privilège. Quels sens, notamment politiques, peut-on donner à ces modifications. Avons-nous alors affaire à deux variantes d’un seul roman, ou à deux romans différents, voire à encore plus ?
La pratique dédicatoire du dramaturge Pierre du Ryer : vers un « lieu vide du pouvoir »  ?
Authors: Pocquet Tiphaine
Published: July 2022

Les épîtres préfacielles précédant le théâtre de Pierre du Ryer connaissent une évolution significative, le dramaturge choisit des figures puissantes mais également contestataires (celle de César de Vendôme), puis abandonne la pratique dédicatoire. Un texte préfaciel fait charnière : la dédicace de la tragédie Saül à « personne » c’est-à-dire à tout le monde, en 1642. Il s’agit pour nous de comprendre ce geste de dédicace universelle en partant des circonstances politiques de ce choix. Nous montrons qu’en perdant le principe d’une autorité unique – la figure du dédicataire traditionnel et derrière elle, celle du souverain dispensateur des dons – la puissance se déplace pour se loger dans un lien élargi, tissé avec un public de lecteurs particuliers et pluriels en même temps. Le texte préfaciel devient ce « lieu vide du pouvoir », aux contours sans cesse redéfinis.
Photographic coverage of the Trou de la Féclaz site (Saint-Jean-d’Arvey, Savoy, France) — data paper
Authors: Defrasne Claudia
Published: July 2022

The dataset described in this paper consists of 557 photographs composing the 2D photographic coverage of the rock paintings from the Trou de la Féclaz alpine site (Saint-Jean-d’Arvey, Savoy, France) with 14 pictures of the environment of the site and 21 pictures composing the general views of the rockshelter. This record was carrying out as part of a post-doctoral research at Aix-Marseille Université on the structure and chronology of the prehistoric schematic rock paintings from southern France and western Alps, a corpus today composed of 146 sites. This was administratively authorized both by the municipality that is the owner of the site, and the Regional Service of Archaeology Auvergne-Rhône-Alpes that also financially supported the fieldwork.