cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Job relatedness, local skill coherence and economic performance: a job postings approach
Creators: name: Henning, Martin
name: Eriksson, Rikard
name: Garefelt, Petrus
name: Martin, Hanna
name: Elekes, Zoltán
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology

description: The local presence and composition of skills is commonly thought to have enormous implications for economic development. Yet, skills and the relations between them are notoriously difficult to pinpoint and measure. We develop a method that uses information available in Swedish job postings to measure the skill-relatedness of jobs and the skill-coherence of local economies. Our skill-relatedness measure can be assumed to be exogenous to local economic outcomes such as wages, productivity and labour mobility. We corroborate some previous research findings and show that workers tend to switch between related jobs and that local economies are on average skill-coherent. However, less coherent local economies are associated with higher average wages and productivity. Local economies where workers switch between related jobs though enjoy higher average wages. In all, this points to the benefit of local labour market clusters within more diverse regions. We conclude that job postings provide a wealth of information on the skill-foundations of local development. A job-level skill-relatedness matrix accompanies the paper.
Calabi-Yau Fourfolds with Flux and Supersymmetry Breaking
Creators: name: Berg, Marcus
name: Haack, Michael
name: Samtleben, Henning
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In Calabi-Yau fourfold compactifications of M-theory with flux, we investigate the possibility of partial supersymmetry breaking in the three-dimensional effective theory. To this end, we place the effective theory in the framework of general N=2 gauged supergravities, in the special case where only translational symmetries are gauged. This allows us to extract supersymmetry-breaking conditions, and interpret them as conditions on the 4-form flux and Calabi-Yau geometry. For N=2 unbroken supersymmetry in three dimensions we recover previously known results, and we find a new condition for breaking supersymmetry from N=2 to N=1, i.e. from four to two supercharges. An example of a Calabi-Yau hypersurface in a toric variety that satisfies this condition is provided.
description: 26 pages
The Octonions
Creators: name: Baez, John C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Rings and Algebras (math.RA)
subject: High Energy Physics - Theory (hep-th)
subject: History and Overview (math.HO)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The octonions are the largest of the four normed division algebras. While somewhat neglected due to their nonassociativity, they stand at the crossroads of many interesting fields of mathematics. Here we describe them and their relation to Clifford algebras and spinors, Bott periodicity, projective and Lorentzian geometry, Jordan algebras, and the exceptional Lie groups. We also touch upon their applications in quantum logic, special relativity and supersymmetry.
description: 56 pages LaTeX, 11 Postscript Figures, some small corrections
Performance Impact of the Command Query Responsibility Segregation (CQRS) Pattern in C# Web APIs
Creators: name: Richter, Jens
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt, Halle (Saale)
Year: 2024
Subjects: subject: Command and Query Responsibility Segregation
subject: performance of a Traditional web API
subject: 005

description: This thesis investigates the impact of the Command and Query Responsibility Segregation (CQRS) (Young, 2010) pattern on the performance of a Traditional web API, focusing on response times. The study involves refactoring a Traditional web API used by the E-Commerce company Relaxdays into two CQRS-based implementations: one manually developed and the other utilizing the MediatR library (Bogard, n.d.). The web APIs were evaluated using consistent load testing scenarios implemented with K6 (Grafana Labs, n.d.-a), and the results were analyzed statistically
Exact bosonization in arbitrary dimensions
Creators: name: Chen, Yu-An
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend the previous results of exact bosonization, mapping from fermionic operators to Pauli matrices, in 2d and 3d to arbitrary dimensions. This bosonization map gives a duality between any fermionic system in arbitrary $n$ spatial dimensions and a new class of $(n-1)$-form $\mathbb{Z}_2$ gauge theories in $n$ dimensions with a modified Gauss's law. This map preserves locality and has an explicit dependence on the second Stiefel-Whitney class and a choice of spin structure on the manifold. A new formula for Stiefel-Whitney homology classes on lattices is derived. In the Euclidean path integral, this exact bosonization map is equivalent to introducing a topological "Steenrod square" term to the spacetime action.
description: 25 pages, 4 figures
SYSTEMATIC REVIEW OF ZYGOMATIC IMPLANT SUCCESS RATES IN THE REHABILITATION OF SEVERELY ATROPHIC MAXILLAE
Creators: name: Shukurov, Shokhrukh
Publisher: name: Zenodo
Year: 2025

description: Zygomatic implants offer an effective treatment option for patients with severe maxillary atrophy, enabling the delivery of fixed prosthetics within 24 hours. Despite their widespread use, reported success rates vary across studies, leading to ongoing debate regarding their overall efficacy and predictability. This study aims to evaluate the published literature on the use of zygomatic implants for reconstructing the severely atrophic maxilla and to report the cumulative success rate (CSR) over various follow-up periods. A systematic review of 196 studies was conducted, revealing a CSR of 98.5% at less than 1 year, 97.5% at 1–3 years, 96.8% at 3–5 years, and 96.1% after 5 years or more. The most frequently reported complications were soft tissue dehiscence, rhinosinusitis, and prosthetic failures. These findings confirm that zygomatic implants are a reliable and safe solution for addressing severe maxillary bone deficiency, achieving a CSR of 96.1% over the long term.
A generalized latent class logit model of discontinuous preferences in repeated discrete choice data: an application to mosquito control in Madison, Wisconsin
Creators: name: Brown, Zachary S.
name: Dickinson, Katherine L.
name: Paskewitz, Susan
name: Brown, Zachary S.
name: Dickinson, Katherine L.
name: Paskewitz, Susan
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: discrete choice econometrics
subject: latent class models
subject: partial observability
subject: serial nonparticipation
subject: serial participation
subject: discontinuous preferences
subject: E-M algorithm

description: Serial nonparticipation in nonmarket valuation using choice data is a pattern of behavior in which an individual always appears to choose the status quo or ‘no program’ alternative. From a choice modelling perspective serial nonparticipation may be viewed as belonging to a class of ‘discontinuous preferences,’ which also includes other behavioral patterns, such as serial participation (never choosing the status quo), as well as lexicographic preferences (e.g. always choosing the alternative with the greatest health benefit). Discontinuous preferences are likely to be especially relevant in the context of environmental goods, due to the lack of familiarity that individuals have with valuing these goods in markets. In the case of discrete choice data, logit-based choice models are ill-equipped for identifying such preferences, because conditional logit choice probabilities cannot take a value of zero or one for any finite parameter estimates. Here we extend latent class choice models to account for discontinuous preferences. Our methodological innovation is to specify for each latent class a subset of alternatives that are avoided with certainty. This results in class membership being partially observable, since we then know with certainty that an individual does not belong to a class if she selects any alternatives avoided by that class. We apply our model to data from a discrete choice experiment on mosquito control programs to reduce West Nile virus risk and nuisance disamenities in Madison, Wisconsin. We find that our ‘generalized latent class model’ (GLCM) outperforms standard latent class models in terms of information criteria metrics, and provides significantly different estimates for willingness-to-pay. We also argue that GLCMs are useful for identifying some alternatives for which valuation estimates may not be identified in a given dataset, thus reducing the risk of invalid inference from discrete choice data.
Results on Identified Hadrons from the PHENIX Experiment at RHIC
Creators: name: Chujo, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent results on identified hadrons from the PHENIX experiment in Au+Au collisions at mid-rapidity at $\sqrt{s_{NN}}$ = 200 GeV are presented. The centrality dependence of transverse momentum distributions and particle ratios for identified charged hadrons are studied. The transverse flow velocity and freeze-out temperature are extracted from $p_{T}$ spectra within the framework of a hydrodynamic collective flow model. Two-particle HBT correlations for charged pions are measured in different centrality selections for a broad range of transverse momentum of the pair. Results on elliptic flow measurements with respect to the reaction plane for identified particles are also presented.
description: 10 pages, 10 figures. Talk presented at Quark Matter 2002, Nantes, France, July 18-24, 2002. To appear in the proceedings (Nucl. Phys. A)
Tensor network representations of parton wave functions
Creators: name: Wu, Ying-Hai
name: Wang, Lei
name: Tu, Hong-Hao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Tensor network states and parton wave functions are two pivotal methods for studying quantum many-body systems. This work connects these two subjects as we demonstrate that a variety of parton wave functions, such as projected Fermi sea and projected fermionic or bosonic paired states, can be represented exactly as tensor networks. The results can be compressed into matrix product states with moderate bond dimensions so various physical quantities can be computed efficiently. For the projected Fermi sea, we develop an excellent compression scheme with high fidelity using maximally localized Wannier orbitals. Numerical calculations on two parton wave functions demonstrate that our method exceeds commonly adopted Monte Carlo methods in some aspects. It produces energy and correlation function with very high accuracy that is difficult to achieve using Monte Carlo method. The entanglement measures that were almost impossible to compute before can also be obtained easily using our method.
description: 6+4 pages, 3+1 figures, published version
Spiral arms, bar shape and bulge microlensing in the Milky Way
Creators: name: Bissantz, Nicolai
name: Gerhard, Ortwin
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new model for the luminosity distribution in the inner Milky Way is found, using a non-parametric penalized maximum-likelihood algorithm to deproject a dereddened COBE/DIRBE L-band map of the inner Galaxy. The model is also constrained by the apparent magnitude (line-of-sight) distributions of clump giant stars in certain bulge fields. An important new feature is the inclusion of a spiral arm model in the disk. Spiral arms make the model appear broader on the sky, thus our bar is more elongated than in previous eight-fold symmetric models. They also lead to a smoother disk model interior to the Sun. The bar length is approx. 3.5kpc and its axis ratios are 1:(0.3-0.4):0.3, independent of whether the spiral arm model is 4-armed or 2-armed. The larger elongation in the plane makes it possible to reproduce the observed clump giant distributions as well. For the bar angle we estimate 15^o <= phi <= 30^o, with the best models obtained for 20^o <= phi <= 25^o. We use our reference model to predict a microlensing optical depth map towards the bulge, normalising its mass by the observed terminal velocity curve. For clump giant sources at (l,b)=(3.9,-3.8) we find tau_{-6}:=tau/10^{-6}=1.27, within 1.8*sigma of the new MACHO measurement given by Popowski et al. The value for all sources at (l,b)=(2.68,-3.35) is tau_{-6}=1.1, still >3*sigma away from the published MACHO DIA value. The dispersion of these tau_{-6} values within our models is 10%. Because the distribution of sources is well-fit by the NIR model, increasing the predicted optical depths by >20% will be difficult. Thus the high value of the measured clump giant optical depth argues for a near-maximal disk in the Milky Way. (abridged)
description: 20 pages, to appear in MNRAS. Contains some low-resolution figures, high-resolution figures are available on request
Study on the Export Competitiveness of China’s Flower Seedlings
Creators: name: ZHOU, Jie
name: ZHOU, Jie
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Chinese flower seedlings
subject: RCA index
subject: National Diamond Model
subject: International competitiveness

description: This paper introduces the "National Diamond Model" and reviews the literature concerning the export of flower seedlings. Then it analyzes the production and export of Chinese flower seedlings, as well as the factors (factor endowments, foreign demand, related industries and industrial organization) influencing the production of Chinese flower seedlings based on Diamond Model. Finally, this paper puts forth the recommendations for the enhancement of the export competitiveness of Chinese flower seedlings.
Differential Geometrical Formulation of Gauge Theory of Gravity
Creators: name: Wu, Ning
name: Xu, Zhan
name: Zhang, Da-Hua
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Differential geometric formulation of quantum gauge theory of gravity is studied in this paper. The quantum gauge theory of gravity which is proposed in the references hep-th/0109145 and hep-th/0112062 is formulated completely in the framework of traditional quantum field theory. In order to study the relationship between quantum gauge theory of gravity and traditional quantum gravity which is formulated in curved space, it is important to find the differential geometric formulation of quantum gauge theory of gravity. We first give out the correspondence between quantum gauge theory of gravity and differential geometry. Then we give out differential geometric formulation of quantum gauge theory of gravity.
description: 10 pages, no figure
Leaching behavior of multiphase solidified melt prepared from stainless steel and Zircaloy
Creators: name: Ikeuchi, Hirotomo
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Space Science
Medicine
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy

description: Formation of metallic fuel debris is highly probable in the damaged core of the Fukushima Daiichi Nuclear Power Station. Estimating the number of radionuclides released from the fuel debris to an aqueous solution is indispensable for proper handling of fuel debris and waste management. In the present study, a simple approach is introduced to roughly evaluate the mass of elements leached from complex multiphase surfaces considering the surface-area-weighted average of the contributions of individual phases. Static leaching tests were performed under the acidic and the alkaline conditions to investigate the gap between the simplified assumption and the actual dissolution behavior. Alloy samples of a stainless steel–Zircaloy (SUS–Zry) solidified melt and two single-phase samples ((Fe,Cr)2Zr- and Zr2(Fe,Ni)-type phases, which comprised the surface of the SUS–Zry alloy) were used in the static leaching tests. The masses of the Fe, Cr, Ni, and Zr leached from the SUS–Zry alloy fitted with those evaluated by the surface-area-weighted approach by 1–2 orders of magnitude of precision.
Non-Abelian Giant Gravitons
Creators: name: Janssen, Bert
name: Lozano, Yolanda
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that the giant graviton configurations known from the literature have a complementary, microscopical description in terms of multiple gravitational waves undergoing a dielectric (or magnetic moment) effect. We present a non-Abelian effective action for these gravitational waves with dielectric couplings and show that stable dielectric solutions exist. These solutions agree in the large $N$ limit with the giant graviton configurations in the literature.
description: 8 pages. Contribution to the proceedings of the RTN workshop in Leuven, Belgium, September 2002
A new simple proof for Lum-Chua's conjecture
Creators: name: Carmona, Victoriano
name: Fernández-Sánchez, Fernando
name: Novaes, Douglas D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34A26, 34A36, 34C05, 34C25

description: The already proved Lum-Chua's conjecture says that a continuous planar piecewise linear differential system with two zones separated by a straight line has at most one limit cycle. In this paper, we provide a new proof by using a novel characterization for Poincaré half-maps in planar linear systems. This proof is very short and straightforward, because this characterization avoids the inherent flaws of the usual methods to study piecewise linear systems (the appearance of large case-by-case analysis due to the unnecessary discrimination between the different spectra of the involved matrices, to deal with transcendental equations forced by the implicit occurrence of flight time, ...). In addition, the application of the characterization allow us to prove that if a limit cycle exists, then it is hyperbolic and its stability is determined by a simple relationship between the parameters. To the best of our knowledge, the hyperbolicity of the limit cycle and this simple expression for its stability have not been pointed out before.
Reconstructing historical exposures to elongate mineral particles (EMPs) in the taconite mining industry for 1955–2010
Creators: name: Shao, Yuan
name: Jooyeon Hwang
name: Alexander, Bruce H.
name: Mandel, Jeffrey H.
name: MacLehose, Richard F.
name: Gurumurthy Ramachandran
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: As part of ongoing epidemiological studies for assessing the association between exposure to dust from taconite operations and the development of respiratory diseases, the goal of this study was to reconstruct the exposures of workers to elongate mineral particle (EMP) in the Minnesota taconite mining industry from 1955–2010. Historical NIOSH-7400 and equivalent EMP personal exposure data were extracted from two sources: (1) the Mine Safety and Health Administration (MSHA) online database recorded for all inspection results since 1978 with 655 EMP monitoring records from 1978–2010 for 13 MSHA Mine IDs associated with this study; and (2) the mining companies’ internal monitoring reports contained 96 personal EMP exposure records. NIOSH-7400 EMP personal exposures were measured for workers in different jobs in all active mines in 2010 by obtaining 1,285 personal samples. After data treatment, all data were grouped into seven mines and eight departments. Within each mine-department, the yearly EMP mean concentration in f/cc for each year of operation was predicted using two approaches. The performance of two approaches varied by situation. The assumptions underlying each approach described in this article have limitations. A linear regression based on limited historical measurements and those made in 2010–2011 (Approach 1) does not yield reasonable and plausible values of the slope. Approach 2 assumes that the EMP and the respirable dust in the same department share the same historical time trend. This approach allowed us to avail of the more reasonable slope estimates from the historical respirable dust data set and yielded more plausible historical exposure estimates for most locations. This work with two different job exposure matrix (JEMs) provides a unique research opportunity to study the potential impact of exposure assessment to epidemiological results. Both JEMs are being used to assess associations between EMP and respiratory disease in epidemiological studies.
A Visual Analytics Framework for Adversarial Text Generation
Creators: name: Laughlin, Brandon
name: Collins, Christopher
name: Sankaranarayanan, Karthik
name: El-Khatib, Khalil
Publisher: name: arXiv
Year: 2019
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper presents a framework which enables a user to more easily make corrections to adversarial texts. While attack algorithms have been demonstrated to automatically build adversaries, changes made by the algorithms can often have poor semantics or syntax. Our framework is designed to facilitate human intervention by aiding users in making corrections. The framework extends existing attack algorithms to work within an evolutionary attack process paired with a visual analytics loop. Using an interactive dashboard a user is able to review the generation process in real time and receive suggestions from the system for edits to be made. The adversaries can be used to both diagnose robustness issues within a single classifier or to compare various classifier options. With the weaknesses identified, the framework can also be used as a first step in mitigating adversarial threats. The framework can be used as part of further research into defense methods in which the adversarial examples are used to evaluate new countermeasures. We demonstrate the framework with a word swapping attack for the task of sentiment classification.
Comparative Analysis of Food Price Policies in the Developed Countries
Creators: name: LI, Linrong
name: LI, Linrong
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Food price
subject: Minimum purchase price
subject: Policy tools
subject: Disconnection

description: As the basis for maintenance of national security and global strategic material, food has always captured the attention of governments in the world. After reaching a certain stage of industrialization, most countries will take the food support and protection measures, and the policy objectives and policy tools have evolved into a set of policy systems through continuous adjustment, but the intervention in food price has always been present. The food price intervention only plays a role in regulating food market supply and demand and guaranteeing minimum income for grain producers, and it can not reflect the cost of food production and continuously improve grain producers' income, but because of its simple operation, low cost and immediate effect, it is suitable for the countries with a large number of grain producers but small operation scale in the short term.
Eine Literaturanalyse im Bereich der Informationsüberlastung – Neue Erkenntnisse und Veränderungen zu älteren Publikationen
Creators: name: Bohnke, Robert
Publisher: name: Hochschulbibliothek, Hochschule Merseburg
Year: 2023
Subjects: subject: Informationsüberlastung
subject: Informationsüberbelastung
subject: Information Overload
subject: Information Fatigue Syndrome
subject: communication overload
subject: DDC::0** Informatik, Informationswissenschaft, allgemeine Werke::00* Informatik, Wissen, Systeme::000 Informatik, Informationswissenschaft, allgemeine Werke

description: Ziel dieser systematischen Literaturanalyse soll es sein, das Phänomen der Informationsüberlastung weiter zu erkunden. Daher wird sich mit der Literatur zum Thema information overload intensiv auseinandergesetzt, um neue Erkenntnisse zu Publikationen zwischen 1970-2010 festzuhalten. Informationsüberlastung wird, basierend auf Arbeiten aus der Organisationstheorie, als ein Umstand beschrieben, bei der die Zeitbedürfnisse für die Verarbeitung von Informationen, welche für Interaktionen und interne Berechnungen erforderlich sind, überstiegen (vgl. Schick et al. 1990, S. 199-220). Es gibt Hinweise darauf, dass eine hohe Anzahl an Informationen die Verarbeitung dieser aufwendiger macht und dadurch mehr Zeit für die Bearbeitung in Anspruch genommen wird. Weiterhin entsteht das Problem, dass Subjekte weniger Aufmerksamkeit für relevante Informationen besitzen, was die Effektivität der Verarbeitung dieser weiter beschränkt (vgl. Jacoby, Kohn, Speller 1973 gel. in Jacoby 1984). Neben der Minderung der Effizienz ist die Überlastung an Informationen ein erstzunehmendes Problem für die Gesundheit der Menschen. Dauerhaft einem solchen Überfluss ausgesetzt zu sein, kann zu Stress, Krankheit und Minderung der Zufriedenheit am Arbeitsplatz oder im Privaten führen (vgl. Edmunds & Morris 2000, S. 17-28). Aber auch aus wirtschaftlicher Sicht richtet die Informationsüberlastung erhebliche Schäden an. Schätzungsweise kostet die Überlastung an Informationen, genauer gesagt ihre Auswirkungen, Unternehmen rund 650 Milliarden Dollar pro Jahr (vgl. Roetzel 2019, S. 479-522). Die Probleme sowie die Forschungen im Gebiet der Informationsüberlastung haben in den letzten Jahrzehnten ein enorm breites Spektrum angenommen und befassen sich mit einer großen Palette an Problemen in verschiedenen Disziplinen (vgl. Metag & Gurr 2022). Daher ist eine Betrachtung dieser Thematik für die Zukunft und für die Allgemeinheit unerlässlich. „Information Overload ist zweifelsohne eine der größten Herausforderungen für Organisationen in unserer Zeit.“ (vgl. Rachfall 2010, S. 4)
Impact of Agricultural Modernization, Economic Growth and Industrialization on the International Competitiveness of Agricultural Products: Based on the Empirical Analysis of Cointegration and VEC Model
Creators: name: YAO, Wen
name: YAO, Wen
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural modernization
subject: Economic growth
subject: Industrialization
subject: International competitiveness of agricultural products
subject: VEC model

description: The expanded agricultural trade deficit in recent years has caused widespread concern about the international competitiveness of Chinese agricultural products. In this paper, guided by Michael Porter's diamond model theory, based on agricultural production and trade data in China and the world from 1986 to 2011, we use principal component analysis, cointegration and vector error correction model, to perform an empirical analysis of the impact of agricultural modernization, economic growth and industrialization on the international competitiveness of Chinese agricultural products. The results show that China's agricultural modernization is slow, the demand for agricultural products caused by economic growth is increased, and excessive rural labor transfer due to industrialization leads to decline in the international competitiveness of Chinese agricultural products. China should increase its efforts to promote the modernization of agriculture and level of industry nurturing agriculture; use WTO rules to create a good international and domestic environment for the development of China's agriculture and improvement of the international competitiveness of agricultural products; give full play to the role of demand in boosting the industrial upgrading of domestic agriculture.
Evolution of Family Enterprises of Feed and Veterinary Drugs and Introduction of Professional Manager System
Creators: name: LIANG, Hua
name: SHEN, Zhongmin
name: LIANG, Hua
name: SHEN, Zhongmin
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Family enterprises of feed and veterinary drugs
subject: Evolution stages
subject: Professional manager system

description: Overall socio-economic development of urban and rural areas and laying solid foundation for agricultural and rural development are closely connected with sustainable development of family enterprises of feed and veterinary drugs. This paper analyzed evolution stages and three-ring administration mode of family enterprises of feed and veterinary drugs and discussed the inevitable requirement for introducing perfect professional manager system.
Neutrinos from the gamma-ray source eHWC J1825-134: predictions for Km$^3$ detectors
Creators: name: Niro, V.
name: Neronov, A.
name: Fusco, L.
name: Gabici, S.
name: Semikoz, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The eHWC J1825-134 source is located in the southern sky and has been recently detected by the HAWC observatory. It presents an hard spectral index and its gamma-ray flux extends up to energies close to 100 TeV without significant suppression. Amongst the HAWC sources, it is the most luminous in the multi-TeV domain and therefore is one of the first that should be searched for with a neutrino telescope in the northern hemisphere. Using an updated effective area for the forthcoming KM3NeT detector, we study the possibility to detect this source within ten years of its running time. We conclude that about a 4 to 5 sigma detection has to be expected after ten years of observations, depending on the details of the considered scenario.
description: 10 pages, 4 figures, 2 tables. Typos corrected, updated references, acknowledgments and plots, conclusions unchanged
Implications of Foreign Farmland Financial Development for Financial Service Innovation in China’s Rural Areas
Creators: name: SU, Jicheng
name: LI, Hongjuan
name: SU, Jicheng
name: LI, Hongjuan
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Land finance
subject: Financial support
subject: Rural finance
subject: Service innovation

description: Currently, there are many problems requiring to be solved urgently in the rural economic development in China, including farmers’ difficulties in getting loans, difficulties in agricultural financing of small and medium-sized enterprises, disconnection of funds chain and serious information asymmetry. The roots of these problems are inadequate financial support and single as well as backward service pattern. The development of rural economy and improvement of farmers’ life depend in large measure upon rural financial service system. Rural financial business system in western developed countries mainly consists of policy finance, cooperative finance and commercial finance[1]. Development of land finance provides powerful fund circulation for rural finance. Western countries have relatively advanced legal systems and policies for rural financial support with land mortgage and land guarantee as the main methods, which can be used as reference, such as construction of rural financial system, innovation of rural financial service as well as supervision and control of rural financial risks. Through introducing relevant features of foreign farmland finance, this article discusses service innovation in the reform of China’s rural financial system.
Higher Order Hamiltonian Monte Carlo Sampling for Cosmological Large-Scale Structure Analysis
Creators: name: Hernández-Sánchez, Mónica
name: Kitaura, Francisco-Shu
name: Ata, Metin
name: Vecchia, Claudio Dalla
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate higher order symplectic integration strategies within Bayesian cosmic density field reconstruction methods. In particular, we study the fourth-order discretisation of Hamiltonian equations of motion (EoM). This is achieved by recursively applying the basic second-order leap-frog scheme (considering the single evaluation of the EoM) in a combination of even numbers of forward time integration steps with a single intermediate backward step. This largely reduces the number of evaluations and random gradient computations, as required in the usual second-order case for high-dimensional cases. We restrict this study to the lognormal-Poisson model, applied to a full volume halo catalogue in real space on a cubical mesh of 1250 $h^{-1}$ Mpc side and 256$^3$ cells. Hence, we neglect selection effects, redshift space distortions, and displacements. We note that those observational and cosmic evolution effects can be accounted for in subsequent Gibbs-sampling steps within the COSMIC BIRTH algorithm. We find that going from the usual second to fourth-order in the leap-frog scheme shortens the burn-in phase by a factor of at least $\sim30$. This implies that 75-90 independent samples are obtained while the fastest second-order method converges. After convergence, the correlation lengths indicate an improvement factor of about 3.0 fewer gradient computations for meshes of 256$^3$ cells. In the considered cosmological scenario, the traditional leap-frog scheme turns out to outperform higher order integration schemes only at lower dimensional problems, e.g. meshes with 64$^3$ cells. This gain in computational efficiency can help to go towards a full Bayesian analysis of the cosmological large-scale structure for upcoming galaxy surveys.
description: 19 pages, 12 figures, 4 tables, accepted at MNRAS, additional robust mathematical argument supported by numerical tests with longer HMC chains and a solid statistical analysis
Resonance-Assisted Tunneling
Creators: name: Brodier, Olivier
name: Schlagheck, Peter
name: Ullmo, Denis
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present evidence that tunneling processes in near-integrable systems are enhanced due to the manifestation of nonlinear resonances and their respective island chains in phase space. A semiclassical description of this "resonance-assisted" mechanism is given, which is based on a local perturbative description of the dynamics in the vicinity of the resonances. As underlying picture, we obtain that the quantum state is coupled, via a succession of classically forbidden transitions across nonlinear resonances, to high excitations within the well, from where tunneling occurs with a rather large rate. The connection between this description and the complex classical structure of the underlying integrable dynamics is furthermore studied, giving ground to the general coherence of the description as well as guidelines for the identification of the dominant tunneling paths. The validity of this mechanism is demonstrated within the kicked Harper model, where good agreement between quantum and semiclassical (resonance-assisted) tunneling rates is found.
description: 52 pages, 16 figures, submitted to Annals of Physics
Is it possible to explain the muon and electron $g-2$ in a $Z^{\prime}$ model?
Creators: name: Hernández, A. E. Cárcamo
name: King, S. F.
name: Lee, H.
name: Rowley, S. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to address this question, we consider a simple renormalisable and gauge invariant model in which the $Z'$ only has couplings to the electron and muon and their associated neutrinos, arising from mixing with a heavy vector-like fourth family of leptons. Within this model we discuss the contributions to the electron and muon anomalous magnetic moments from $Z'$ exchange, subject to the constraints from $μ\rightarrow e γ$ and neutrino trident production. Using analytic and numerical arguments, we find that such a $Z'$ model can account for either the electron or the muon $g-2$ anomalies, but not both, while remaining consistent with the experimental constraints from $μ\rightarrow e γ$ and neutrino trident production.
description: 22 pages, 8 figures
Analysis of the Factors Influencing Breeding Record Establishment of Sheep-raising Households or Farms Based on Logit-ISM: Based on 849 Questionnaires from 17 Cities in Shandong Province
Creators: name: ZHU, Shiping
name: SUN, Shimin
name: HAN, Limin
name: ZHU, Shiping
name: SUN, Shimin
name: HAN, Limin
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Sheep-raising households or farms
subject: Breeding records
subject: Influencing factors
subject: Logit model
subject: ISM model

description: Breeding record is an important way to implement standardized sheep raising, trace major sheep raising epidemic information and ensure the quality and safety of products for sheep-raising households or farms. Based on 849 questionnaires from 17 cities of Shandong Province, the paper firstly used the binary discrete model of Logit to analyze the factors influencing the establishing behavior of breeding records of sheep-raising households or farms and then used the ISM model to explain the relationship and hierarchy of each influencing factor. The result showed that seven factors including the education level of the deciders, farming scale, fixed number of farming years, degree of specialization, support of the government, whether to join the industrialization organization and the recognition of the breeding records have a significant impact on the establishing behavior of breeding records of the sheep-raising households or farms. Among them, the support of the government and the recognition of breeding records are the surface direct factors, degree of specialization and whether to join the industrialization organization are the middle indirect factors, the education level of the deciders, the farming scale and the fixed number of farming years are deep source factors.
Students’ entrepreneurial mindset in the era of global health pandemic: perspective from the University of Lagos, Nigeria
Creators: name: Adewumi, Samson Adeoluwa
Publisher: name: Mangosuthu University of Technology (MUT)
Year: 2022
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences
subject: 150304 Entrepreneurship
subject: FOS: Economics and business
subject: Health Care

description: Remarking on the justification for entrepreneurship as a critical component for economic and employment creation, emphasis on building a robust student’s entrepreneurship mind-set has received less attention, especially in this era of global health pandemic (Covid-19). This knowledge chasm stimulates the need to understand students’ entrepreneurship mind-set in this era of paid employment loss. A total of 24 final year students were selected on purpose and snowball across two faculties with the Mind-set theoretical analysis reviewed as the theoretical leaning. The results reveal the development of students’ entrepreneurship mind-set to include attitude development, preparedness, being business savvy and a stimulating business environment. Others include effective mobilization of human and material resources and appropriate students’ cognitive cognizance. The persistent economic downturn was argued as the link between the global health pandemic and the dwindling rate of graduate jobs, whereas appropriate entrepreneurship education, content and curriculum was advanced as important indicators for a sustaining students’ entrepreneurial mind-set. The study recommends the university administrators in their effort to implement entrepreneurship education across the strata of the university as a pathway to economic sustenance and development. This effort, however, must be channeled to ensure students are greatly motivated towards entrepreneurship venture.
Identifying causal effects in maximally oriented partially directed acyclic graphs
Creators: name: Perković, Emilija
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We develop a necessary and sufficient causal identification criterion for maximally oriented partially directed acyclic graphs (MPDAGs). MPDAGs as a class of graphs include directed acyclic graphs (DAGs), completed partially directed acyclic graphs (CPDAGs), and CPDAGs with added background knowledge. As such, they represent the type of graph that can be learned from observational data and background knowledge under the assumption of no latent variables. Our identification criterion can be seen as a generalization of the g-formula of Robins (1986). We further obtain a generalization of the truncated factorization formula (Pearl, 2009) and compare our criterion to the generalized adjustment criterion of Perković et al. (2017) which is sufficient, but not necessary for causal identification.
description: 17 pages, 5 figures, 2 columns
Uncertainty quantification of light-water-moderated and light-water-reflected cores with highly-enriched uranium fuel at Kyoto University Critical Assembly
Creators: name: Pyeon, Cheol Ho
name: Morioka, Kota
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: A series of uncertainty quantifications are successfully conducted by the eigenvalue calculations, the uncertainty of criticality and reactivity, and the reduction of uncertainty using the KENO-VI code, the TSUNAMI-3D, the TSAR and the TSURFER modules of the SCALE code system, respectively. The eigenvalue calculations with KENO-VI provide noteworthy the discrepancy between experimental and numerical results of effective multiplication factor (keff), and the neutron spectrum dependence of keff in the light-water-moderated and light-water-reflected cores (C-cores) at the Kyoto University Critical Assembly (KUCA). In terms of TSUNAMI-3D, the discrepancy of keff is determined mainly by the uncertainty of uranium-235 (235U) fission spectrum (χ value) induced by the cross-section data, due to the use of highly-enriched uranium fuel in the KUCA C-cores. Also, the neutron spectrum dependence of keff is adequately understood from the effects of the uncertainty of hydrogen-1 capture, oxygen-16 elastic scattering, and aluminum-27 elastic and inelastic scattering reactions, in addition to the uncertainty of 235U fission spectrum. The reduction in the uncertainty of criticality and reactivity is interestingly achieved by the cross-section adjustment method provided in the TSURFER module, demonstrating the contribution of relevant nuclides and reactions of core components in the KUCA C-cores.
Step-by-step challenge of debris characterization for the decommissioning of Fukushima-Daiichi Nuclear Power Station (FDNPS)
Creators: name: Kurata, Masaki
name: Okuzumi, Naoaki
name: Nakayoshi, Akira
name: Ikeuchi, Hirotomo
name: Koyama, Shinichi
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: The present article reviewed the step-by-step attempts on debris characterization after the severe accident of Fukushima-Daiichi Nuclear Power Station (FDNPS). It was rather difficult to investigate the reactor inside in the first few years. Distribution of degraded core materials, i.e. fuel debris, was investigated by a muon tomography and the damaged reactor status was preliminarily predicted from the severe accident analysis. In parallel, literature review was carried out for the debris generated after Three Mile Island unit 2 accident and the simulated debris previously examined in the nuclear safety research. Since 2017, remote investigations of the reactor inside have been carried out, which is gradually clarifying the damage status. The sample analysis has accumulated useful knowledge for the debris characterization. Furthermore, several out-of-pile tests which reflected unique accident conditions at the FDNPS have been conducted mainly in Japan, including characterization of simulated ex-vessel debris, formation mechanism of metal-rich debris and debris corrosion by seawater materials. To establish a proper analysis method suitable for debris samples is also extremely important. These accumulated knowledge and data have been reviewed and compiled as a database 'debrisWiki' in Japan, which includes core status maps, investigation results of the reactor inside, probable accident scenarios, sample analysis data and so on. Various international collaborations were launched and several have continued for the decommissioning of the FDNPS and the use of relevant knowledge for improving the nuclear safety.
SPEX status of spectral model development
Creators: name: Gu, Liyi
Publisher: name: Zenodo
Year: 2022
Subjects: X-ray Spectroscopy
Spectral modeling
Atomic physics
Software

description: New models and functionalities are being actively developed in SPEX to cope with new and more complicated physics conditions. In this talk I will briefly introduce these new models, including in particular the 3D shell radiative transfer model "cluster" and time-dependent photoionization model "tpho". I will also give a quick overview on the recent improvement on the fundamental atomic data, and will end my talk with our plan for future model developments.