Miracle-dz/UniFAR-FTUs huggingface dataset:
Secular dynamics and family identification among highly inclined asteroids in the Euphrosyne region

Among highly inclined asteroids the external region of the main belt beyond the 5J:2A mean-motion resonance with Jupiter has long been known to host the Euphrosyne and Alauda families. The region is confined in semimajor axis between the 5J:-2A and 2J:-1A mean-motion resonances with Jupiter, and is characterized by the presence of the ν6, ν5 and ν16 linear secular resonances, as well as by the z1, z2, z3 and other non-linear secular resonances. In this work we employed the frequency modified Fourier transform method to obtain synthetic proper elements for 6841 numbered and 4034 multi-opposition objects in the region of the Euphrosyne family, and used this data to obtain families and clumps in the domain of proper elements and frequencies. With respect to other works on family identification in the area, here we focused our investigation on the effect that the complicated local web of secular resonances has had on the dynamical evolutions of families and clumps. We detected all main linear and non-linear secular resonances, up to order six, in the region and identified for the first time new populations of objects in ν6 anti-aligned librating and ν5 anti-aligned and aligned librating resonant states. We identified two new clumps among ν6 anti-aligned librating objects, making them the second and the third groups in this resonant configuration ever found after the discovery of the Tina family. Once the local dynamics was fully understood, we then obtained dynamical groups in the domain of proper elements and in the domain of proper frequencies most apt to study the secular resonance present in each region, and computed ν6 resonant proper elements to study groups in regions affected by the ν6 secular resonance. We identified 18 families and 39 clumps in the Euphrosyne region, of which 12 families and five clumps were in frequency domains. Of particular interest was the group around (69559) (1997 UG5), found in both proper element and frequency domains, characterized by its interaction with five secular resonances. It is the first time that a group of asteroids is found in such an interesting resonant configuration. More importantly, we introduced new techniques for asteroid family identification in presence of secular resonances, which could in principle be used for other areas of the asteroid belt.
2 Against fields : The philosophical case

Using the example of classical electrodynamics, I argue that the concept of fields as mediators of particle interactions is fundamentally flawed and reflects a misguided attempt to retrieve Newtonian concepts in relativistic theories. This leads to various physical and metaphysical problems that are discussed in detail. In particular, I emphasize that physics has not found a satisfying solution to the self-interaction problem in the context of the classical field theory. To demonstrate the superiority of a pure particle ontology, I defend the direct interaction theory of Wheeler and Feynman against recent criticism and argue that it provides the most cogent formulation of classical electrodynamics.
Perceived Flexibility Requirements at Work and the Entreployee-Work-Orientation : Concept and Measurement

Journal Psychologie des Alltagshandelns / Psychology of Everyday Activity, Vol. 4 / No. 1, ISSN 1998-9970 AbstrAct The paper describes the conceptual background and the development of the Flexibility Requirements Scales and the Work Orientation Scales as well as first validity findings. Both measures are based on the entreployee concept (e.g., Pongratz & Voß, 2003b). After summarizing the sociological background and content of the entreployee concept, distinguishing it from related approaches (intrapreneurship, protean / boundaryless career orientations), and outlining why the entreployee concept contributes to quantitative psychological research on flexibility at work, two studies are presented. In Study 1 (N = 689) the factor structures of the two measures are tested by confirmatory factory analyses and the relation between flexibility requirements and work orientations are inspected. The results of Study 2 (N = 441) give evidence for correlations between flexibility requirements, job control, working time autonomy, and cognitive irritation, as well as associations between the dimensions of the entreployee-work orientation, a protean career attitude, personal initiative, and ambiguity tolerance.
Values of polynomials over finite fields

Let q be a prime power, Fq a field with q elements, f ∈ Fq[x] a polynomial of degree n ≥ 1, V(f) = #f(Fq) the number of different values f(α) of f, with α ∈ Fq, and p = q – V(f). It is shown that either ρ = 0 or 4n4 > q or 2pn > q. Hence, if q is “large” and f is not a permutation polynomial, then either n or ρ is “large”.
A Local Correspondence-Aware Hybrid CNN-GCN Model for Single-Image Human Body Reconstruction

Reconstructing a 3D human body mesh from a monocular image is a challenging inverse problem because of occlusion and complicated human articulations. Recent deep learning-based methods have made significant progress in single-image human reconstruction. Most of these works are either model-based methods or model-free methods. However, model-based methods always suffer detail losses due to the limited parameter space, and model-free methods are hard to directly recover satisfactory results from images due to the use of a shared global feature for all vertices and the domain gap between 2D regular images and 3D irregular meshes. To resolve these issues, we propose a hybrid model, which combines the advantages of both model based approach and model-free approach to estimate a 3D human mesh in a coarse-to fine manner. Initially, we utilize a convolutional neural network (CNN) to estimate the parameters of a Skinned Multi-Person Linear Model (SMPL), which allows us to generate a coarse human mesh. After that, the vertex coordinates of the coarse human mesh are further refined by a graph convolutional neural network (GCN). Unlike previous GCN-based methods, whose vertex coordinates are recovered from a shared global feature, we propose a LOcal CorRespondence-Aware (LOCRA) module to extract local special features for each vertex. To make the local features related to the human pose, we also add a keypoint-related loss to supervise the training process of the LOCRA module. Experiments demonstrate that our hybrid model with the LOCRA module outperforms existing methods on multiple public benchmarks.
Large Area Single Crystal (0001) Oriented MoS2 Thin Films

Layered metal dichalcogenide materials are a family of semiconductors with a wide range of energy band gaps and properties, and potential to open up new areas of physics and technology applications. However, obtaining high crystal quality thin films over a large area remains a challenge. Here we show that chemical vapor deposition (CVD) can be used to achieve large area electronic grade single crystal Molybdenum Disulfide (MoS2) thin films with the highest mobility reported in CVD grown films so far. Growth temperature and choice of substrate were found to critically impact the quality of film grown, and high temperature growth on (0001) orientated sapphire yielded highly oriented single crystal MoS2 films for the first time. Films grown under optimal conditions were found to be of high structural quality from high-resolution X-ray diffraction, transmission electron microscopy, and Raman measurements, approaching the quality of reference geological MoS2. Photoluminescence and electrical measurements confirmed the growth of optically active MoS2 with a low background carrier concentration, and high mobility. The CVD method reported here for the growth of high quality MoS2 thin films paves the way towards growth of a variety of layered 2D chalcogenide semiconductors and their heterostructures.
Subsurface drainage influences the structure and assembly of soil bacterial and fungal communities in salinized cotton field

ABSTRACT Exploring the impact of subsurface drainage on microbial community structures in saline-alkali soils is of great significance for maintaining the sustainability of saline-alkali fields. In this study, seven field treatments were designed in cotton fields: two drain depth (0.8 and 1.1 m) and three drain spacing (10, 20, and 30 m) treatments, as well as no drainage (control). Soil samples were obtained in the seedling and flowering and boll-setting (FBS) stages, and the soil properties and microbial communities (bacteria and fungi) were analyzed. The results displayed that compared with the control group, soil salt was significantly decreased in all subsurface drainage treatments. Subsurface drainage treatments have no effect on microbial richness and diversity. Both drain depth and spacing had significant effects on bacterial and fungal composition structures in the seedling stage, but only drain depth significantly altered soil microbial composition structures in the FBS stage. Based on the null model, the assembly of soil microbial communities was mainly driven by stochastic processes. The contributions of the deterministic process for soil bacterial community assembly at the seedling stage and FBS stage were 18.1% and 22.1%, respectively. In contrast, soil fungal community assembly was mainly determined by dispersal limitation and drift.
The Effects of Taxation on Business Investment: New Evidence from Used Equipment

This paper uses data on transaction prices of used farm machinery, aircraft, and construction machinery to examine the impact and incidence of tax incentives for investment. Theory predicts that incentives applying only to new investment should drive a wedge equal to the value of the incentives between the prices of new equipment and equally productive used equipment. Evidence from the repeal of the investment tax credit in the Tax Reform Act of 1986 produces a large and significant estimated effect of the ITC on the relative price of used farm machinery, with similar, but less robust results for aircraft. The estimated effect of recent bonus depreciation incentives on the price of used construction machinery is close to zero, however, suggesting that bonus depreciation had little value to machinery buyers.
CARBON-RICH MOLECULAR CHAINS IN PROTOPLANETARY AND PLANETARY ATMOSPHERES: QUANTUM MECHANISMS AND ELECTRON ATTACHMENT RATES FOR ANION FORMATION

The elementary mechanisms through which molecular polyynes could form stable negative ions after interacting with free electrons in planetary atmospheres (e.g., Titan's) are analyzed using quantum scattering calculations and quantum structure methods. The case of radical species and of nonpolar partners are analyzed via specific examples for both the CnH and HCnH series, with n values from 4 to 12. We show that attachment processes to polar radicals are dominating the anionic production and that the mediating role of dipolar scattering states is crucial to their formation. The corresponding attachment rates are presented as calculated upper limits to their likely values and are obtained down to the low temperatures of interest. The effects of the computed rates, when used in simple evolutionary models, are also investigated and presented in detail.
Stability in Repeated Matching Markets

This paper develops a framework for studying repeated matching markets. The model departs from the Gale–Shapley matching model by having a fixed set of long‐lived players (firms) match with a new generation of short‐lived players (workers) in every period. I define history‐dependent and self‐enforcing matching processes in this repeated matching environment and characterize the firms' payoffs. Firms fall into one of two categories: some firms must obtain the same payoff as they would in static stable matchings, and this holds at every patience level; meanwhile, repetition and history dependence can enlarge the set of sustainable payoffs for the other firms, provided that the firms are sufficiently patient. In large matching markets with correlated preferences, the first kind of firms corresponds to “elite” firms that make up at most a vanishingly small fraction of the market. The vast majority of firms fall into the second category.
Revealing a Preference for Mixing : An Experimental Study of Risk ∗

Behavioral theories can be distinguished by different attitudes towards mixing between lotteries. Using a revealed preference approach, we conduct an individual choice experiment in which subjects choose from different linear budgets covering the space of three-outcome lotteries. Using experimental choices, we determine whether behavior can be explained by any increasing concave—in the probabilities—utility model and whether mixing behavior is consistent with a “preference for randomization”. The main finding is pervasive evidence of a preference for non-degenerate mixing over lotteries and that these choices can be organized according to revealed preferences. Further, we relate this result to previous experimental evidence of a “preference for randomization”—non-constant choices in repeated binary decisions—to mixing behavior in budgets. Moreover, we test the out-of-sample predictive accuracy of various models on our data. The overall results lend clear support for the convexity of risk-preferences that has implications for a range of topics, from incentive design to game theory.
Is farmland financial innovation narrowing the urban-rural income gap? A cross-regional study of China

Over the past four decades, China’s economy has experienced tremendous economic growth but also a widening urban-rural income gap. Given the dilemma of the urban-rural income gap in China explained by neoclassical equilibrium theory, this paper attempts to provide a new theoretical explanation for the large-income gap between urban and rural areas in China. We select data from 30 provinces(cities) in China over the period from 2006 to 2017 as a sample to investigate whether and how the degree of farmland financial innovation narrows the urban-rural income gap. The results show that the coefficient for farmland financial innovation is significantly negative at the 1% level, signifying that financial innovation can narrow the urban-rural income gap in China. The mediation effect test provides evidence that farmland financial innovation narrows the urban-rural income gap by promoting the permanent migration of the labor force and upgrading the industrial structure. Our results indicate that the government should promote various forms of farmland financial innovation, establish rural property rights transaction system and free farmers from deep farmer-land attachment to realize permanent labor migration.
Thawing Permafrost as a Nitrogen Fertiliser: Implications for Climate Feedbacks

Studies for the northern high latitudes suggest that, in the near term, increased vegetation uptake may offset permafrost carbon losses, but over longer time periods, permafrost carbon decomposition causes a net loss of carbon. Here, we assess the impact of a coupled carbon and nitrogen cycle on the simulations of these carbon fluxes. We present results from JULES-IMOGEN—a global land surface model coupled to an intermediate complexity climate model with vertically resolved soil biogeochemistry. We quantify the impact of nitrogen fertilisation from thawing permafrost on the carbon cycle and compare it with the loss of permafrost carbon. Projections show that the additional fertilisation reduces the high latitude vegetation nitrogen limitation and causes an overall increase in vegetation carbon uptake. This is a few Petagrams of carbon (Pg C) by year 2100, increasing to up to 40 Pg C by year 2300 for the RCP8.5 concentration scenario and adds around 50% to the projected overall increase in vegetation carbon in that region. This nitrogen fertilisation results in a negative (stabilising) feedback on the global mean temperature, which could be equivalent in magnitude to the positive (destabilising) temperature feedback from the loss of permafrost carbon. This balance depends on the future scenario and initial permafrost carbon. JULES-IMOGEN describes one representation of the changes in Arctic carbon and nitrogen cycling in response to climate change. However there are uncertainties in the modelling framework, model parameterisation and missing processes which, when assessed, will provide a more complete picture of the balance between stabilising and destabilising feedbacks.
Constraining modern‐day silicon cycling in Lake Baikal

Constraining the continental silicon cycle is a key requirement in attempts to understand both nutrient fluxes to the ocean and linkages between silicon and carbon cycling over different time scales. Silicon isotope data of dissolved silica (δ30SiDSi) are presented here from Lake Baikal and its catchment in central Siberia. As well as being the world's oldest and voluminous lake, Lake Baikal lies within the seventh largest drainage basin in the world and exports significant amounts of freshwater into the Arctic Ocean. Data from river waters accounting for ~92% of annual river inflow to the lake suggest no seasonal alteration or anthropogenic impact on river δ30SiDSi composition. The absence of a change in δ30SiDSi within the Selenga Delta, through which 62% of riverine flow passes, suggests a net balance between biogenic uptake and dissolution in this system. A key feature of this study is the use of δ30SiDSi to examine seasonal and spatial variations in DSi utilization and export across the lake. Using an open system model against deepwater δ30SiDSi values from the lake, we estimate that 20–24% of DSi entering Lake Baikal is exported into the sediment record. While highlighting the impact that lakes may have upon the sequestration of continental DSi, mixed layer δ30SiDSi values from 2003 and 2013 show significant spatial variability in the magnitude of spring bloom nutrient utilization with lower rates in the north relative to south basin.
International Trade and Productivity: The Role of Industry and Export Destination

The study explores the productivity effect associated with all types of firm’s export decisions across destinations. Using micro data on Ukrainian manufacturing firms operating during 2000-2005, I show that high-tech firms experience stronger productivity shocks associated with changes in their export status. Low-tech firms, instead, experience productivity improvements only when entering advanced export markets and are, on average, significantly less sensitive to changes in their export status. The results also show that firms’ characteristics, including productivity, not only improve the firm’s ability to self-select into exporting, but also increase its ability to penetrate a larger number of export markets.
The Risk of Developing Lymphoma among Autoimmune Thyroid Disorder Patients: A Cross-Section Study

Background Graves' disease (GD) and Hashimoto's thyroiditis (HT) are the most common types of autoimmune thyroid diseases (AITD), and both are characterized by the infiltration of lymphocytes into the thyroid gland. Moreover, autoimmune diseases like HT have a higher risk of developing lymphoma. This study is aimed at assessing the prevalence and association of lymphoma in patients with AITD. Methods This cross-sectional study was conducted in King Abdulaziz Medical City, Jeddah, Saudi Arabia. Data were gathered from the medical records of patients aged 18 years or older who developed AITD. A total number of 140 medical records were collected, and 72 patients were included after applying in exclusion criteria. Data on the subtype, clinical-stage, treatment modality, patient status, remission, and relapse were collected for patients who developed lymphoma. Results Among 72 patients who developed AITD, HT was diagnosed in 58 (80.6%) patients and GD in 14 (19.4%). Five (7%) patients were diagnosed with lymphoma all of whom had a history of HT. The subtypes of lymphoma were diffuse large B-cell lymphoma (DLBCL 3; 4.2%), follicular lymphoma 1 (1.4%), and Hodgkin's lymphoma 1 (1.4%). Conclusion The prevalence of PTL in patients with AITD, specifically HT, was 7%. Most patients developed NHL, with DLBCL being the most common subtype. The onset of lymphoma in this study was lower than reported in the literature. All patients with PTL had HT in their backgrounds. Further national studies are warranted to explore the relationship between the two diseases to provide more insight into the comprehension of this association.
Assessing the value relevance of total comprehensive income under IFRS: an empirical evidence from European stock exchanges

This paper compares the value relevance of the net income and the total comprehensive income reported under IFRSs. The total comprehensive income represents a key measure of the overall company performance, and it is extremely topical after the revision of the IAS 1. The paper aims at verifying whether the total comprehensive income is more value relevant than the net income. To this purpose, accounting and market data regarding companies listed on the UK, French, German, Spanish and Italian stock exchanges have been collected for the years 2005-2007. Valuation models have been used to assess the differences in value relevance by using total comprehensive income or net income. Findings show that total comprehensive income has not resulted in an unquestionable increase in value relevance compared with net income. This research contributes to defining the relevance of the total comprehensive income and to the international debate about which overall company performance should be reported in the IFRS financial statement.
Leisure, work, and constituted everydayness mountain songs of Hakka women in colonized northern Taiwan (1930–1955)

In his creative critique of industrial society and everydayness, Henri Lefebvre points out the contradiction and interdependence between leisure and work. Taking the narratives of Hakka women in northern Taiwan speaking about their personal experiences of singing or listening to mountain songs (san24go24, shan’ge) as an illustrative example, this article reveals multiple relations between leisure and work, acting as a theoretical compliment and extension of Lefebvre’s theory. Through a focus on personal narratives, the approach taken in this article enables us to examine and record certain forms of everydayness in the rural lives of Hakka women in Taiwan in the period between 1930 and 1955. This article explores the experiences of Hakka women being colonized through a discussion of life-history narratives in reference to listening to and singing mountain songs within the daily and extraordinary contexts of life within the local community. The article presents several findings, including how mountain songs acted both as social markers in colonial society and as channels to obscure the boundary between leisure and work.