Hasil untuk "History of France"

P. Duhem

H. Morgenthau

C. Tilly

Louise M. J. O'Connor, Wilfried Thuiller, Ulrich Brose et al.

ABSTRACT International conservation policy includes the dual aims of protecting biodiversity and nature's contributions to people (NCP). Achieving these goals requires protecting not only species and habitats but also the networks of biotic interactions that sustain them. Food webs, which represent predator‐prey interactions between species, are increasingly recognised as a link between ecosystem structure, function, and resilience, which are concepts that are frequently cited in conservation policy. Yet, conservation planning and policy typically focus on individual species and habitats and overlook the interactions that support their persistence. We review the literature at the intersection of food web ecology and conservation, and highlight how food webs can inform three conservation goals: preventing species extinctions, maintaining ecosystem functions and NCP, and fostering ecosystem resilience. Food web data and metrics, such as interaction diversity, trophic diversity, connectance, or modularity, can be used to prioritize species that are key to ecosystem structure and functioning, and to guide spatial prioritization to protect functionally diverse and resilient communities. Given the growing availability of food web data, incorporating food webs in conservation planning can lead to more effective and resilient conservation outcomes that sustain biodiversity and ecosystem functions in the long term.

Lang Feng, Fuchao Yang, Feng Chen et al.

Recent advances in large language models (LLMs) enable agentic systems trained with reinforcement learning (RL) over multi-turn interaction trajectories, but practical deployment is bottlenecked by rapidly growing textual histories that inflate token budgets and memory usage. We introduce AgentOCR, a framework that exploits the superior information density of visual tokens by representing the accumulated observation-action history as a compact rendered image. To make multi-turn rollouts scalable, AgentOCR proposes segment optical caching. By decomposing history into hashable segments and maintaining a visual cache, this mechanism eliminates redundant re-rendering. Beyond fixed rendering, AgentOCR introduces agentic self-compression, where the agent actively emits a compression rate and is trained with compression-aware reward to adaptively balance task success and token efficiency. We conduct extensive experiments on challenging agentic benchmarks, ALFWorld and search-based QA. Remarkably, results demonstrate that AgentOCR preserves over 95\% of text-based agent performance while substantially reducing token consumption (>50\%), yielding consistent token and memory efficiency. Our further analysis validates a 20x rendering speedup from segment optical caching and the effective strategic balancing of self-compression.

Benjamin Mako Hill, Aaron Shaw

Wikipedia's founders could not have dreamed they were creating the most important laboratory for social scientific and computing research in history but that is exactly what happened. Hill and Shaw take account of Wikipedia's enormous effect on academic scholarship

Serin Kim, Sangam Lee, Dongha Lee

Large language models have advanced web agents, yet current agents lack personalization capabilities. Since users rarely specify every detail of their intent, practical web agents must be able to interpret ambiguous queries by inferring user preferences and contexts. To address this challenge, we present Persona2Web, the first benchmark for evaluating personalized web agents on the real open web, built upon the clarify-to-personalize principle, which requires agents to resolve ambiguity based on user history rather than relying on explicit instructions. Persona2Web consists of: (1) user histories that reveal preferences implicitly over long time spans, (2) ambiguous queries that require agents to infer implicit user preferences, and (3) a reasoning-aware evaluation framework that enables fine-grained assessment of personalization. We conduct extensive experiments across various agent architectures, backbone models, history access schemes, and queries with varying ambiguity levels, revealing key challenges in personalized web agent behavior. For reproducibility, our codes and datasets are publicly available at https://anonymous.4open.science/r/Persona2Web-73E8.

Paolo Santagata

“Half-classical, half-medieval, half-Western, halfOriental, this figure illustrates both the abstract grandeur of a philosophical principle and the malign voracity of a destructive demon. It is precisely this rich complexity of the new image that explains the frequent appearance and diverse meaning of Father Time in Renaissance and Baroque art.” With these words, Erwin Panofsky introduces the fascinating and complex iconographic history of Father Time. In the chapter “Father Time” (Studies in Iconology: Humanist Themes in Renaissance Art, 1939), Panofsky highlights the extent of the contribution that Petrarch’s Triumphs made to the construction of this figure. Proof of this is the fact that, among the examples provided to demonstrate its evolution, no less than five are taken from illustrations in the Triumphs. In the general panorama of illustrations in the Triumphs, it is therefore possible to observe the complete transformation of this figure, which would later become dominant in subsequent illustrations. The aim of this essay is to reconstruct the evolution of this figure within the illustrations of Petrarchan manuscripts in Italy and France. My intention is to highlight which elements derive from the few textual indications present in Petrarch's chapter "Triumphus Temporis" and which have an origin outside the poem. This article also aims to illustrate instances in which illuminators depict Father Time with unpublished iconographic variants that, at first glance, are difficult to explain.

Michael M. Shara, Kenneth M. Lanzetta, Alexandra Masegian et al.

Recurrent novae undergo thermonuclear-powered eruptions separated by less than 100 yr, enabled by subgiant or red giant donors transferring hydrogen-rich matter at very high rates onto their massive white dwarf companions. The most rapidly moving parts of envelopes ejected in successive recurrent nova events are predicted to overtake and collide with the slowest ejecta of the previous eruption, leading to the buildup of vast (∼10–100 pc) superremnants surrounding all recurrent novae, but only three examples are currently known. We report deep narrowband imaging and spectroscopy, which have revealed a ∼70 pc diameter shell surrounding the frequently recurring nova RS Ophiuchi. We estimate the superremnant mass to be ∼20–200 M _⊙ , expanding at a few tens of km/s, with an age of order 50–100 kyr. Its extremely low surface brightness and large angular size help explain the hitherto surprising absence of nova superremnants. Our results support the prediction that all recurrent novae are surrounded by similar extended structures.

KaiWen Wei, Kejun He, Xiaomian Kang et al.

Generative recommendation, which directly generates item identifiers, has emerged as a promising paradigm for recommendation systems. However, its potential is fundamentally constrained by the reliance on purely autoregressive training. This approach focuses solely on predicting the next item while ignoring the rich internal structure of a user's interaction history, thus failing to grasp the underlying intent. To address this limitation, we propose Masked History Learning (MHL), a novel training framework that shifts the objective from simple next-step prediction to deep comprehension of history. MHL augments the standard autoregressive objective with an auxiliary task of reconstructing masked historical items, compelling the model to understand ``why'' an item path is formed from the user's past behaviors, rather than just ``what'' item comes next. We introduce two key contributions to enhance this framework: (1) an entropy-guided masking policy that intelligently targets the most informative historical items for reconstruction, and (2) a curriculum learning scheduler that progressively transitions from history reconstruction to future prediction. Experiments on three public datasets show that our method significantly outperforms state-of-the-art generative models, highlighting that a comprehensive understanding of the past is crucial for accurately predicting a user's future path. The code will be released to the public.

The cruel repression against the opponents of the coup d’état organized against the regime of Salvador Allende on 11 September 1973 pushed hundreds of them into exile. From September 1973 to July 1974, several hundred people were welcomed in the embassy, as well as in the residence of the French ambassador and his wife, Pierre and Françoise De Menthon, Fifty years later, the exiles who agreed to recall the memory of this history bear witness to their improvisation and dedication. For Cahiers d’histoire, the two directors evoke the meaning and the stakes of their work, produced by Pauline Marion-Mataillet for La Société des Apaches. The film premiered at the Maison de l’Amérique latine in Paris in July 2022, in the presence of the President of the Chilean Republic, Gabriel Boric. A version of 52 minutes is available in replay on France TV, a version of 68 minutes is offered to independent cinemas, associations and collectives who would like to show it.

Abinash Kumar Shaw, Raghunath Ghara, Paz Beniamini et al.

We propose different estimators to probe the intergalactic medium (IGM) during epoch of reionization (EoR) using the dispersion measure (${\rm DM}$) of the fast radio bursts. We consider three different reionization histories, which we can distinguish with a total of $\lesssim 1000\,{\rm DM}$ measurements during EoR if their redshifts are known. We note that the redshift derivatives of ${\rm DM}$ are also directly sensitive to the reionization history. The major point of this work is to explore the variance in the ${\rm DM}$ measurements and the information encoded in them. We find that the all-sky average $\overline{\rm DM}(z)$ gets biased from the line-of-sight (LoS) fluctuations in the ${\rm DM}$ measurements introduced by the ionization of IGM during EoR. We find that the ratio $σ_{\rm DM}/\overline{\rm DM}$ depends directly on the ionization bubble sizes as well as the reionization history. On the other hand, we also find that angular variance (coined as $\textit{structure function}$) of ${\rm DM}$ encodes the information about the duration of reionization and the typical bubble sizes as well. We establish the usefulness of variances in ${\rm DM}$ using toy models of reionization and later verify it with the realistic reionization simulations.

Lekshmi Thulasidharan, Elena D'Onghia, Robert Benjamin et al.

The prevailing model of galaxy formation proposes that galaxies like the Milky Way are built through a series of mergers with smaller galaxies over time. However, the exact details of the Milky Way's assembly history remain uncertain. In this study, we show that the Milky Way's merger history is uniquely encoded in the vertical thickness of its stellar disk. By leveraging age estimates from the value-added LAMOST DR8 catalog and the StarHorse ages from SDSS-IV DR12 data, we investigate the relationship between disk thickness and stellar ages in the Milky Way using a sample comprising Red Giants (RG), Red Clump Giants (RCG), and metal-poor stars (MPS). Guided by the IllustrisTNG50 simulations, we show that an increase in the dispersion of the vertical displacement of stars in the disk traces its merger history. This analysis reveals the epoch of a major merger event that assembled the Milky Way approximately 11.13 billion years ago, as indicated by the abrupt increase in disk thickness among stars of that age, likely corresponding to the Gaia-Sausage Enceladus (GSE) event. The data do not exclude an earlier major merger, which may have occurred about 1.3 billion years after the Big Bang. Furthermore, the analysis suggests that the geometric thick disk of the Milky Way was formed around 11.13 billion years ago, followed by a transition period of approximately 2.6 billion years leading to the formation of the geometric thin disk, illustrating the galaxy's structural evolution. Additionally, we identified three more recent events -- 5.20 billion, 2.02 billion, and 0.22 billion years ago -- potentially linked to multiple passages of the Sagittarius dwarf galaxy. Our study not only elucidates the complex mass assembly history of the Milky Way and highlights its past interactions but also introduces a refined method for examining the merger histories of external galaxies.

I. Veith

Zoë Dubus

Célina Marcil…, a 27-year-old laundress, had been interned at the Salpêtrière hospital since 1867. Diagnosed as hysterical, suffering from vaginismus, she suffered extremely violent attacks. In order to relieve her and to keep the ward calm, the hospital’s alienists were in the habit of generously providing sedatives such as ether or morphine to their patients. Her doctors therefore administered high doses of psychotropic drugs which in fact exacerbated her erotic delusions, meticulously transcribed in her case study. Within a coercive institution and under the libidinous glance of the medical staff, Celina Marcil nevertheless showed a certain capacity for action. Demanding to the point of violence that her doctors provide her with the desired quantities of ether or morphine, using them to intensify her voluptuous reactions, using ether to achieve the sexual pleasure impossible to reach with her lover, the young woman managed for a time to adapt to her condition.

Sara Sharifpour, Noori Hadi, Mohammad Reza Gholami Shekarsaraee

IntroductionThe present research deals with the discrepancy between the hypothesized theory of the Asiatic mode of production and the empirical evidence from the Qajar era. Specifically, it explored whether the state–class relationship in the Qajar era can accurately be characterized as oriental despotism (or an Asian state), or it reflects a state where the power of the king was limited by influential classes, such as the clergy, affluent merchants, local nobility, provincial rulers, princes, large landowners, and tribal chiefs. The central focus of this research was to determine whether the Qajar state enjoyed power concentration or operated within a kind of power plurality. In this respect, the central question is: Was the power of the Qajar state limited by social classes, or did it wield absolute and supra-class authority?Theoretical FrameworkThe study examined the state–class relationship through the lens of Karl Marx’s theory of the state. Marx’s perspective on the state can be categorized into three distinct models: the powerless state, the state with relative power, and the state with absolute power. Applying these three models, the present study analyzed the dynamics of the state–class relationship during the Qajar era.According to Marx’s instrumentalist theory, the concept of a class state suggests that both the form and essence of the state are contingent upon prevailing classes. While the state may exhibit diverse variations and characteristics in different historical contexts, it fundamentally relies on classes. In all instances, the state functions as a dependent entity and a tool of the ruling class. Marx presented his theory of the Bonapartist state in The Eighteenth Brumaire of Louis Bonaparte (1852) and The Class Struggles in France 1848-1850 (1850). Marx acknowledges that the state possesses a certain degree of independent power or relative autonomy from the ruling class. According to Marx and Engels, the absence of private land ownership and the existence of large-scale state-controlled water facilities, despite their apparent contradiction, are the defining characteristics of the Asian state, in which the autocratic state machinery exercises control over the production surplus and serves not only as the central apparatus for oppression but also as a tool for economic exploitation at the disposal of the ruling class. In such a setting, “the state reigns supreme.”As evident, Marx’s triadic model of the state analyzes the state–class relationship at three levels. The model of class state portrays a state that lacks power and relative autonomy from the ruling class. The Bonapartist state enjoys relative autonomy from the ruling class, while the Asian state wields absolute power and autocratic authority over all societal classes. The present research used Marx’s triadic model as the analytical framework to examine the state–class relationship during the Qajar era.Materials and Methods This research employed a historical case study approach, which involves gathering extensive information through various data collection methods over an extended temporal span. The collected information is systematically analyzed with the explicit objective of deriving theoretical insights. The documentary research method within the framework of recorded or written history was used to collect the relevant information. There are three strategies for data analysis: pattern matching, explanation building, and time series analysis. Given the descriptive nature of the current case study, the pattern matching method, specifically the type of rival explanations, was utilized. This method involves comparing the historical pattern derived from experience with the predicted theoretical pattern.Results and DiscussionThe central question addressed in the present article pertains to the extent of the Qajar state’s power; whether it was constrained by social classes or characterized by absolute and supra-class authority. According to the research findings, the influential clerics, relying on their social support base, exerted their influence over the state. This influence manifested openly through the issuance of fatwas in significant events such as the Russo-Persian Wars, the Persian Tobacco Protest, or the Constitutional Movement. Furthermore, the clerics often succeeded in establishing common interests through their relationships with statesmen, thereby exerting influence over high-ranking state officials. Notably, clerics comprised 20% of the social composition of the first parliament, which signifies their official entry into the power structure of the time.Prominent and affluent merchants, particularly in the first half of the 19th century, wielded influence by fulfilling the financial requirements of the state and cooperating closely with it. However, their role evolved in the second half of the 19th century marked by events like the Tobacco Protests and Monsieur Naus, when they joined the protesters and disrupted the country’s economic cycles due to conflicting interests. This class emerged as one of the most influential groups in Iran during the Qajar era. With the establishment of the Constituent Assembly, they secured a significant one-third of the parliament composition.The influential patriarchs of tribes and the heads of important clans held significant sway due to their independent geographic position and economic resources, military strength, and provision of manpower to the Qajar army. This enabled them to exert influence and even engage in direct conflicts with the state, such as during the Constitutional Movement.Given Iran’s population structure, which predominantly comprised farmers, the large landowners assumed the role of quasi-sovereigns within the territories under their ownership. Their possession of extensive estates, personal military forces, and substantial incomes derived from landownership, combined with a weak bureaucracy and an inefficient tax system, granted them considerable autonomy in areas under their influence.ConclusionAccording to the findings, it becomes highly challenging to conceive of the Qajar state as the entity possessing absolute power, as Marx suggests as the primary characteristic of the Asian state. In the Qajar Iran, influential social classes, including the clergy, affluent merchants, local nobility, provincial rulers, princes, large landowners, and tribal chiefs, served as intermediary layers that limited the state’s power and prevented the establishment of a supreme master or an absolute ruler. Moreover, the Qajar state, originating from the Qajar tribe, was not practically reliant on the tribe itself or other social classes, so the Qajar state actually employed various methods, such as granting state positions or making discord between tribes, to control and even suppress them. Accordingly, the Qajar state cannot be categorized as a mere instrument of the ruling class or an entity with absolute power. It does not align with the concept of a class state or even a supra-class state. Instead, enjoying power and relative autonomy from the dominant class, the Qajar state could create a relative balance between social forces, leading to its characterization as a Bonapartist state.

Maximilian Gerhold

Seong Jin Kim, Tomotsugu Goto, Chih-Teng Ling et al.

With the advent of the James Webb Space Telescope (JWST), extra-galactic source count studies were conducted down to sub-microJy in the mid-infrared (MIR), which is several tens of times fainter than what the previous-generation infrared (IR) telescopes achieved in the MIR. In this work, we aim to interpret the JWST source counts and constrain cosmic star-formation history (CSFH) and black hole accretion history (BHAH). We employ the backward evolution of local luminosity functions (LLFs) of galaxies to reproduce the observed source counts from sub-microJy to a few tens of mJy in the MIR bands of the JWST. The shapes of the LLFs at the MIR bands are determined using the model templates of the spectral energy distributions (SEDs) for five representative galaxy types (star-forming galaxies, starbursts, composite, AGN type 2 and 1). By simultaneously fitting our model to all the source counts in the six MIR bands, along with the previous results, we determine the best-fit evolutions of MIR LFs for each of the five galaxy types, and subsequently estimate the CSFH and BHAH. Thanks to the JWST, our estimates are based on several tens of times fainter MIR sources, the existence of which was merely an extrapolation in previous studies.

Nathan Meades

Juan José García-Granero, Juan José García-Granero, Akshyeta Suryanarayan et al.

This study attempts a holistic approach to past foodways in prehistoric northern Gujarat, India, by considering evidence of food production, distribution, preparation and consumption. We present here the results of a pilot residue study, integrating lipid and starch grain analyses, conducted on 28 ceramic vessels from three Chalcolithic/Harappan settlements (c. 3300–2000 cal. BC) in northern Gujarat, which are discussed in the light of previous evidence of plant and animal acquisition and preparation strategies in this region. We aim to explore how the prehistoric inhabitants of northern Gujarat transformed ingredients into meals, focusing on how different foodstuffs were processed. When assessed on their own, the lipid and compound-specific isotopic data suggest that animal fats were primarily processed in ceramic vessels, specifically non-ruminant fats. However, lipid residue analysis favors the detection of fat-rich animal products and is often unable to disentangle signatures resulting from the mixing of plant and animal products. The incorporation of starch grain analyses provides evidence for the processing of a range of plants in the vessels, such as cereals, pulses and underground storage organs. Together, the results provide a holistic perspective on foodways and a way forward in overcoming preservational and interpretational limitations.