cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$^{13}$C Isotopic Fractionation of CCH in Two Starless Cores: L1521B and L134N
Creators: name: Taniguchi, Kotomi
name: Herbst, Eric
name: Ozeki, Hiroyuki
name: Saito, Masao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have carried out observations of CCH and its two $^{13}$C isotopologues, $^{13}$CCH and C$^{13}$CH, in the 84 - 88 GHz band toward two starless cores, L1521B and L134N (L183), using the Nobeyama 45 m radio telescope. We have detected C$^{13}$CH with a signal-to-noise (S/N) ratio of 4, whereas no line of $^{13}$CCH was detected in either the dark clouds. The column densities of the normal species were derived to be ($1.66 \pm 0.18$)$\times 10^{14}$ cm$^{-2}$ and ($7.3 \pm 0.9$)$\times 10^{13}$ cm$^{-2}$ ($1 σ$) in L1521B and L134N, respectively. The column density ratios of $N$(C$^{13}$CH)/$N$($^{13}$CCH) were calculated to be $>1.1$ and $>1.4$ in L1521B and L134N, respectively. The characteristic that $^{13}$CCH is less abundant than C$^{13}$CH is likely common for dark clouds. Moreover, we find that the $^{12}$C/$^{13}$C ratios of CCH are much higher than those of HC$_{3}$N in L1521B by more than a factor of 2, as well as in Taurus Molecular Cloud-1 (TMC-1). In L134N, the differences in the $^{12}$C/$^{13}$C ratios between CCH and HC$_{3}$N seem to be smaller than those in L1521B and TMC-1. We discuss the origins of the $^{13}$C isotopic fractionation of CCH and investigate possible routes that cause the significantly high $^{12}$C/$^{13}$C ratio of CCH especially in young dark clouds, with the help of chemical simulations. The high $^{12}$C/$^{13}$C ratios of CCH seem to be caused by reactions between hydrocarbons (e.g., CCH, C$_{2}$H$_{2}$, $l,c$-C$_{3}$H) and C$^{+}$.
description: Accepted for publication in The Astrophysical Journal, 15 pages, 6 figures, 5 tables
On the regularity radius of Delone sets in $\mathbb{R}^3$
Creators: name: Dolbilin, Nikolay
name: Garber, Alexey
name: Leopold, Undine
name: Schulte, Egon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We complete the proof of the upper bound $\hatρ_3\leq 10R$ for the regularity radius of Delone sets in three-dimensional Euclidean space. Namely, summing up the results obtained earlier, and adding the missing cases, we show that if all $10R$-clusters of a Delone set $X$ with parameters $(r,R)$ are equivalent, then $X$ is a regular system.
TIJORAT BANKLARIDA IPOTEKA KREDITLASH AMALIYOTINI TAKOMILLASHTIRISH
Creators: name: Melibaeva, Nafisa
Publisher: name: Zenodo
Year: 2025

description: Mazkur ilmiy tezis tijorat banklarida ipoteka kreditlash amaliyotini takomillashtirish masalalariga bag‘ishlangan. Ipoteka kreditlari aholining uy-joy sharoitlarini yaxshilashda muhim vosita bo‘lib, bank tizimi uchun barqaror daromad manbai hisoblanadi. Tadqiqotda ipoteka kreditlashning dolzarbligi, tijorat banklari uchun muhim jihatlari va mavjud muammolari tahlil qilinadi.
Finite-size investigation of scaling corrections in the square-lattice three-state Potts antiferromagnet square-lattice three-state Potts antiferromagnet
Creators: name: de Queiroz, S. L. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the finite-temperature corrections to scaling in the three-state square-lattice Potts antiferromagnet, close to the critical point at T=0. Numerical diagonalization of the transfer matrix on semi-infinite strips of width $L$ sites, $4 \leq L \leq 14$, yields finite-size estimates of the corresponding scaled gaps, which are extrapolated to $L\to\infty$. Owing to the characteristics of the quantities under study, we argue that the natural variable to consider is $x \equiv L e^{-2β}For the extrapolated scaled gaps we show that square-root corrections, in the variable $x$, are present, and provide estimates for the numerical values of the amplitudes of the first-- and second--order correction terms, for both the first and second scaled gaps. We also calculate the third scaled gap of the transfer matrix spectrum at T=0, and find an extrapolated value of the decay-of-correlations exponent, $η_3=2.00(1)$. This is at odds with earlier predictions, to the effect that the third relevant operator in the problem would give $η_{{\bf P}_{\rm stagg}}=3$, corresponding to the staggered polarization.
description: RevTex4, 5 pages, 2 .eps figures included
Additional file 1 of Improved access and care through the implementation of virtual Hallway, a consultation platform in Nova Scotia: preliminary findings from a feasibility evaluation
Creators: name: Tomblin Murphy, Gail
name: Sampalli, Tara
name: Koto, Prosper
name: Chamberland-Rowe, Caroline
name: Guk, Julia
name: Ventura, Nelson
name: Hartlen, Justin
name: Rasic, Daniel
name: Allen, Jonathan
name: Benson, Kianna
name: MacNeil, Ryan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Supplementary Material 1. Standards for Reporting Implementation Studies: the StaRI checklist for completion. This file includes a checklist confirming the submission’s adherence to the StaRI reporting guidelines.
Paramagnetic Meissner Effect in Superconducting Single Crystals of Ba_{1-x}K_xBiO_3
Creators: name: Kim, Hyun-Tak
name: Minami, H.
name: Schmidbauer, W.
name: Hodby, J. W.
name: Iyo, A.
name: Iga, F.
name: Uwe, H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The paramagnetic Meissner effect (PME) in the field cooled susceptibility has been observed in superconducting single crystals of Ba_{1-x}K_xBiO_3 using magnetometers of Quantum-Design Co.. The PME is similar to that observed in cuprates and Nb superconductors. For the Ba_{0.63}K_{0.37}BiO_3 crystal, the PME is observed in cooling process under the field up to 750 Oe. The PME was not found in the virgin-charged superconducting magnet. The PME is found in a superconductor with trapped flux and may arise from a remnant field, a temperature inhomogeneity near T_c, and a potassium-concentration inhomogeneity.
description: 4 pages, 4 figures
Mapping exchange in relativistic Hartree-Fock
Creators: name: Sulaksono, A.
name: Buervenich, T.
name: Maruhn, J. A.
name: Reinhard, P. -G.
name: Greiner, W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that formally for the standard ansatz relativistic point-coupling mean-field (RMF-PC) model a lagrangian density L is not equivalent in Hartree and Hartree-Fock approximations. The equivalency can be achieved only if we use a ``complete'' ansatz at the cost of introducing new parameters in the model. An approximate treatment of the exchange terms from standard RMF-PC indicates that these effects cannot be easily, if at all, absorbed by a Dirac-Hartree approximation.
description: 26 pages, accepted for publication in annals of physics
Are Farmer Transaction Costs a Barrier to Conservation Program Participation?
Creators: name: McCann, Laura M.J.
name: Claassen, Roger
name: McCann, Laura M.J.
name: Claassen, Roger
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Adoption
subject: Conservation programs
subject: Transaction costs

description: A deeper understanding of barriers to participation in conservation programs, including farmer transaction costs, may improve program design and implementation as well as producer outreach, and thus improve water quality. Data on perceived barriers and transaction costs from the 2012 USDA Agricultural Resources Management Survey of soybean farmers were analyzed. For people who have not applied for programs, the percentage of people agreeing that applying for programs and documenting compliance were barriers, indicates that perceived transaction costs are a barrier to participation. The measured magnitudes of transaction costs of farmers who actually applied to these programs do not seem particularly onerous and are lower than the transaction costs that have been measured for European AESs. Regression analysis indicates there are fixed costs to applying to the programs and there is some evidence that complexity of the program and the farming system increases transaction costs.
Bayesian poisson regression tensor train decomposition model for learning mortality pattern changes during COVID-19 pandemic
Creators: name: Zhang, Wei
name: Mira, Antonietta
name: Wit, Ernst C.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: COVID-19 has led to excess deaths around the world. However, the impact on mortality rates from other causes of death during this time remains unclear. To understand the broader impact of COVID-19 on other causes of death, we analyze Italian official data covering monthly mortality counts from January 2015 to December 2020. To handle the high-dimensional nature of the data, we developed a model that combines Poisson regression with tensor train decomposition to explore the lower-dimensional residual structure of the data. Our Bayesian approach incorporates prior information on model parameters and utilizes an efficient Metropolis-Hastings within Gibbs algorithm for posterior inference. Simulation studies were conducted to validate our approach. Our method not only identifies differential effects of interventions on cause-specific mortality rates through Poisson regression but also provides insights into the relationship between COVID-19 and other causes of death. Additionally, it uncovers latent classes related to demographic characteristics, temporal patterns, and causes of death.
Teaching Social Media as an Interdisciplinary Experiential Program Supplemental Material.docx
Creators: name: Anonymous Under Review
Publisher: name: figshare
Year: 2020
Subjects: subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications

description: The Interdisciplinary Social Media Fellowship design and implementation helped students learn by managing a brand’s social media presence. In this program, students from multiple disciplines followed a framework that defines their roles and incorporates internal and external stakeholders in a process that ensures interdisciplinary learning. The program creates a win-win situation for the university and the students: students benefit through experiential and interdisciplinary learning, while the university produces engaging content relevant to various stakeholders.
Factor Variation on Job Satisfaction of Banking Employees: A Comparative Study on Public and Private Banks
Creators: name: K.W.S.N. Kumari
name: G.J.M.S.R. Jayasinghe
name: J.K.H. Sampath
Publisher: name: figshare
Year: 2019
Subjects: Economics

description: In the competitive banking industry, the success of the organization totally depends on the workforce. The level of job satisfaction of the employee implies the image of the organization and it leads to the accomplishment of the goals of the organization and may vary with the banking sector; public versus private. The main purpose of this study is to compare the job satisfaction level of bankers and analyze significant influencing factors on job satisfaction in accordance with the sector. The data were collected through a questionnaire, from 150 employees in Badulla district, Sri Lanka. The chi-squared test and ordinal logistic regression model was used to identify the significant determinants. According to the regression analysis, there were positive significant effects from empowerment, job security, recognition and appreciation, relationship with the staff and work-life balance on public bank employee’s job satisfaction. The most significant causative factor was the empowerment of employee and when there was an advance in empowerment; a person is 4.116 times more likely to be satisfied. However, in the private sector other than the work-life balance, all other significant causes were varied. The ability to utilize skills, the possibility of growth, salary, work-life balance and working environment were positively affected on job satisfaction. In the private sector, dominant significant impact factor was work-life balance and employee was 6.619 times more likely to be in satisfying level when there is an increase in the work-life balance. It implies that the impact factors on job satisfaction in the banking industry vary with the sector.
Theory and applications of parton pseudodistributions
Creators: name: Radyushkin, A. V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We review the basic theory of the parton pseudodistributions approach and its applications to lattice extractions of parton distribution functions. The crucial idea of the approach is the realization that the correlator $M(z,p)$ of the parton fields is a function ${\cal M} (ν, -z^2)$ of Lorentz invariants $ν=-(zp)$, the Ioffe time, and the invariant interval $z^2$. This observation allows to extract the Ioffe-time distribution ${\cal M} (ν, -z^2)$ from Euclidean separations $z$ accessible on the lattice. Another basic feature is the use of the ratio ${\mathfrak M} (ν,-z^2) \equiv {\cal M} (ν, -z^2)/{\cal M} (0, -z^2)$, that allows to eliminate artificial ultraviolet divergence generated by the gauge link for space-like intervals. The remaining $z^2$-dependence of the reduced Ioffe-time distribution ${\mathfrak M} (ν,-z^2) $ corresponds to perturbative evolution, and can be converted into the scale-dependence of parton distributions $f(x,μ^2)$ using matching relations. The $ν$-dependence of ${\mathfrak M} (ν,-z^2) $ governs the $x$-dependence of parton densities $f(x,μ^2)$. The perturbative evolution was successfully observed in exploratory quenched lattice calculation. The analysis of its precise data provides a framework for extraction of parton densities using the pseudodistributions approach. It was used in the recently performed calculations of the nucleon and pion valence quark distributions. We also discuss matching conditions for the pion distribution amplitude and generalized parton distributions, the lattice studies of which are now in progress.
description: 51 pages. discussion of quasi-PDFs and their non-perturbative evolution added
A 4-unit-cell superstructure in optimally doped YBa2Cu3O6.92 superconductor
Creators: name: Islam, Zahirul
name: Liu, X.
name: Sinha, S. K.
name: Lang, J. C.
name: Moss, S. C.
name: Haskel, D.
name: Srajer, G.
name: Wochner, P.
name: Lee, D. R.
name: Haeffner, D. R.
name: Welp, U.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using high-energy diffraction we show that a 4-unit-cell superstructure, q0=(1/4,0,0), along the shorter Cu-Cu bonds coexists with superconductivity in optimally doped YBCO. A complex set of anisotropic atomic displacements on neighboring CuO chain planes, BaO planes, and CuO2 planes, respectively, correlated over ~3-6 unit cells gives rise to diffuse superlattice peaks. Our observations are consistent with the presence of Ortho-IV nanodomains containing these displacements.
description: Corrected typo in abstract
Can the Agricultural Market Information System (AMIS) help to reduce food price volatility?
Creators: name: Brockhaus, Jan
name: Kalkuhl, Matthias
name: Brockhaus, Jan
name: Kalkuhl, Matthias
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Relations/Trade
subject: food price volatility
subject: AMIS
subject: intransparency
subject: uncertainty
subject: information
subject: harvest estimations and forecasts

description: We investigate to which extent the Agricultural Market Information System (AMIS), set up by the G20 in 2011, can help to reduce food price volatility. Linking uncertainty about fundamentals and volatility in a theoretical model, we show that the uncertainty provides an upper limit for the volatility. In our qualitative analysis we argue that AMIS may help to foster desired price changes and to prevent undesired price changes but at the same time its success in doing so has been limited until now because countries remain reluctant to share their data and the private sector remains largely excluded. Our quantitative analysis shows that the estimations of fundamentals from different sources deviate a lot, especially for stocks. Over time, different estimations seem to comove rather than to converge (for the marketing year 2012/13). With the help of a panel regression we find correlations between food price volatility and oil price volatility, stock-to-use ratios, productions shocks, and uncertainty of the fundamentals.
Joint Products CVP Analysis – Time for Methodical Review
Creators: name: Enyi Patrick Enyi
Publisher: name: figshare
Year: 2019
Subjects: Economics

description: This paper compares the effectiveness of the Weighted-Contribution-Margin (WCM) and the Reversed-Contribution-Margin-Ratio (RCMR) in multiproduct Cost-Volume-Profit analysis applications. Using a rehashed-activity data and the OLS regression to analyse six joint-products over 42 weeks operation, it was found that the WCM lacks analytical efficiency and generates suboptimal products mix because it ignores the inverse relationship between a product’s contribution-margin-ratio (CMR) and its breakeven point (BEP). These deficiencies present potential resource allocation problems during periods of low capacity utilization periods. The paper recommends the use of the RCMR which factors the tradeoff effects of the CMR/BEP in its measurement.
COVINet: a deep learning-based and interpretable prediction model for the county-wise trajectories of COVID-19 in the United States
Creators: name: Jiang, Yukang
name: Tian, Ting
name: Zhou, Wenting
name: Zhang, Yuting
name: Li, Zhongfei
name: Wang, Xueqin
name: Zhang, Heping
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified

description: The devastating impact of COVID-19 on the United States has been profound since its onset in January 2020. Predicting the trajectory of epidemics accurately and devising strategies to curb their progression are currently formidable challenges. In response to this crisis, we propose COVINet, which combines the architecture of Long Short-Term Memory and Gated Recurrent Unit, incorporating actionable covariates to offer high-accuracy prediction and explainable response. First, we train COVINet models for confirmed cases and total deaths with five input features, and compare Mean Absolute Errors (MAEs) and Mean Relative Errors (MREs) of COVINet against ten competing models from the United States CDC in the last four weeks before April 26, 2021. The results show COVINet outperforms all competing models for MAEs and MREs when predicting total deaths. Then, we focus on prediction for the most severe county in each of the top 10 hot-spot states using COVINet. The MREs are small for all predictions made in the last 7 or 30 days before March 23, 2023. Beyond predictive accuracy, COVINet offers high interpretability, enhancing the understanding of pandemic dynamics. This dual capability positions COVINet as a powerful tool for informing effective strategies in pandemic prevention and governmental decision-making.
Revisiting Decoupled Agricultural Policies in CGE frameworks: Theory and Empirics
Creators: name: Ferrari, Emanuele
name: Boulanger, Pierre
name: Gonzalez-Mellado, Aida
name: McDonald, Scott
name: Ferrari, Emanuele
name: Boulanger, Pierre
name: Gonzalez-Mellado, Aida
name: McDonald, Scott
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: CAP
subject: Decoupling
subject: CGE
subject: Ireland

description: The Common Agricultural Policy (CAP) is moving away from coupled payments towards an increasing emphasis on decoupled payments. However current CGE models to study effects of decoupled payments remain limited. This paper introduces the application of a CGE model framework for a comparative analysis of possible effects caused by coupled and decoupled support on agricultural and food sectors in an economy. The CGE model used is the STAGE_AGR which is an extension of the STAGE model containing equations that permit modellers to introduce different system of decoupled payment representation. We have taken as empirical example the case of Ireland for modelling agricultural payments either as fully or partially decoupled.
Additional file 1 of Addressing cancer survivors’ information needs and satisfaction: a systematic review of potential intervention components for survivors with a rare cancer type
Creators: name: Farrugia, Tamsin
name: Duijts, Saskia F. A.
name: Wilson, Carlene
name: Hemming, Laura
name: Cockburn, Christine
name: Spelten, Evelien
Publisher: name: figshare
Year: 2024
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file1.
Space of quantum states built over metrics of fixed signature
Creators: name: Okolow, Andrzej
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a space of quantum states and an algebra of quantum observables, over the set of all metrics of arbitrary but fixed signature, defined on a manifold. The construction is diffeomorphism invariant, and unique up to natural isomorphisms.
description: 24 pages, no figures, LaTeX, new results added
Sierra Leone Country Report 2021
Creators: name: Mabaya, Edward
name: Waithaka, Michael
name: Turay, Momoh Yusif
name: Ngaujah, Aiah Steven
name: Tihanyi, Krisztina
name: Mugoya, Mainza
name: Kanyenji, George
name: Mabaya, Edward
name: Waithaka, Michael
name: Turay, Momoh Yusif
name: Ngaujah, Aiah Steven
name: Tihanyi, Krisztina
name: Mugoya, Mainza
name: Kanyenji, George
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Production Economics
subject: Africa
subject: seed systems
subject: agricultural input markets
subject: technology adoption
subject: agricultural policy
subject: improved seed
subject: institutions

description: The timely availability of improved seeds at affordable prices is critical to improving food security, resilience, and livelihoods for smallholder farmers in Sierra Leone. Seed of improved varieties can deliver state-of-the-art technology to farmers including higher yields, disease and pest resistance, climate change adaptation, and improved nutrition. This report summarizes the key findings of the study conducted by The African Seed Access Index (TASAI) to appraise the structure and economic performance of Sierra Leone’s formal seed sector. With a focus on the four grain and legume crops important to national food and nutritional security (maize, rice, sorghum, and groundnut) the report covers 22 key performance indicators divided into five categories: Research and Development, Industry Competitiveness, Seed Policy and Regulations, Institutional Support, and Service to Smallholder Farmers. We conclude that Sierra Leone’s formal seed sector is in the nascent stage of development. The Sierra Leone Agricultural Research Institute faces human resource capacity constraints and is significantly underfunded, limiting the institution’s capacity to produce and maintain early generation seed for all crops. Since 2020, seed producers and seed companies have been required to register with the Sierra Leone Seed Certification Agency, which is a step toward enhancing the production and sale of quality certified seed in the country. The Seed Regulations have been aligned with the Economic Community of West African States (ECOWAS) Harmonized Seed Regulations and will provide the seed industry in Sierra Leone with increased access to plant varieties already listed in the West Africa Catalogue of Plant Varieties and Species. However, to be useful to seed producers and farmers, the national variety catalogue needs to be updated more frequently. In addition to these highlights, the report discusses many positive developments as well as areas for improvement in Sierra Leone’s formal seed sector
Inhomogeneous cooling state of a strongly confined granular gas at low density
Creators: name: Brey, J. Javier
name: de Soria, M. I. García
name: Maynar, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The inhomogeneous cooling state describing the hydrodynamic behavior of a freely evolving granular gas strongly confined between two parallel plates is studied, using a Boltzmann kinetic equation derived recently. By extending the idea of the homogeneous cooling state, we propose a scaling distribution in which all the time dependence occurs through the granular temperature of the system, while there is a dependence on the distance to the confining walls through the density. It is obtained that the velocity distribution is not isotropic, and it has two different granular temperature parameters associated to the motion perpendicular and parallel to the confining plates, respectively, although their cooling rates are the same. Moreover, when approaching the inhomogeneous cooling state, energy is sometimes transferred from degrees of freedom with lower granular temperature to those with a higher one, contrary to what happens in molecular systems. The cooling rate and the two partial granular temperatures are calculated by means of a Gaussian approximation. The theoretical predictions are compared with molecular dynamics simulation results and a good agreement is found.
The role of the Dirac sea in the quenching of Gamow-Teller strength
Creators: name: Kurasawa, Haruki
name: Suzuki, Toshio
name: Van Giai, Nguyen
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The issue of Gamow-Teller sum rule in atomic nuclei is reexamined in the framework of a relativistic description of nuclei. It is shown that the total Gamow-Teller strength in the nucleon sector is reduced by about 12% as compared to the prediction of a non-relativistic description. This reduction is due to the antinucleon degrees of freedom.
description: REVTeX4, no figures, change content
Toward a Behavioral Model of Multiple-Job-Holding Farm Families
Creators: name: Eboli, Maria G.
name: Turri, Enrico
name: Eboli, Maria G.
name: Turri, Enrico
Publisher: name: Unknown
Year: 1988
Subjects: Farm Management
Labor and Human Capital
Production Economics

description: This paper applies a multidimensional method and a structural approach to the results of research based on a field survey on the origins of pluriactivity and on the attitudes of farm families toward multiple job-holding and full-time farming. Multiple correspondence analysis makes it possible to consider jointly, from a static and dynamic point of view, several quantitative and qualitative variables concerning the family, the farm, and the socio-economic context. A typology of seven groups of farm families is established by means of cluster analysis. The typology shows that the dichotomy between pluriactive and full-time farms does not account for all of reality: a great deal of diversity exists within both groups. The major factors which explain pluriactivity and condition its performance are identified and interpreted. The implications, in term of agricultural, socio-economic and environmental policy, of the evolution of the family farms of each type are then described and analyzed. The essay concludes that future research on pluriactivity ought to pay more attention to the dynamic variables originating both within the farm families and in the socio-economic context.
Metal-Insulator Transition and Ferromagnetism in Diluted Magnetic Semiconductors
Creators: name: Yang, S. -R. Eric
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have investigated the interplay between the metal-insulator transition and ferromagnetism in $({\rm III}_{1-x},{\rm Mn}_x){\rm V}$ ferromagnetic semiconductors. Our study is based on a model in which $S=5/2$ Mn local moments are exchange-coupled to band electrons that interact via Coulomb interactions which each other, with ionized Mn acceptors, and with the antisite defects present in these materials. We find quasiparticle participation ratios that are consistent with a metal-insulator transition that occurs in the ferromagnetic state near $x \sim 0.01$. By evaluating the distribution of mean-field exchange coupling strengths at Mn moment sites, we provide evidence in favor of the applicability of small polaron and hole gas models on insulating and metallic sides of the phase transition respectively.
description: 5 pages, 4 figures
Machine-Learning X-ray Absorption Spectra to Quantitative Accuracy
Creators: name: Carbone, Matthew R.
name: Topsakal, Mehmet
name: Lu, Deyu
name: Yoo, Shinjae
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The advent of massive data repositories has propelled machine learning techniques to the front lines of many scientific fields, and exploring new frontiers by leveraging the predictive power of machine learning will greatly accelerate big data-assisted discovery. In this work, we show that graph-based neural networks can be used to predict the near edge x-ray absorption structure spectra of molecules with exceptional accuracy. The predicted spectra reproduce nearly all the prominent peaks, with 90% of the predicted peak locations within 1 eV of the ground truth. Our study demonstrates that machine learning models can achieve practically the same accuracy as first-principles calculations in predicting complex physical quantities, such as spectral functions, but at a fraction of the cost.
description: 6 pages, 3 figures and 1 table
Gomphionema Wieser and Hopper 1966
Creators: name: Huang, Mian
name: Shi, Benze
name: Wang, Chunguang
name: Xu, Kuidong
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Adenophorea
Desmodorida
Cyatholaimidae
Gomphionema

description: Genus Gomphionema Wieser and Hopper, 1966
 Diagnosis: (Modified from Tchesunov (2014)) Cuticle with transversal rows of punctation, lateral differentiation and cuticle pores may be present. Pattern of anterior sensilla 6+6+4, inner and outer labia sensilla papilliform, cephalic sensilla setiform or papilliform. Buccal cavity heavily cuticularized, consisting of an anterior concave chamber and a conico-cylindrical posterior portion, and armed with a massive dorsal tooth not entering the cheilostoma; subventral teeth absent. Amphideal fovea spiral, located near the buccal cavity. Pharyngeal bulb large, “barrel-shaped”. Reproductive system diorchic; both gonads on different sides of the intestine. Males with cup-shaped precloacal supplements; ventral precloacal seta present. Tail conical, usually with rounded tip.
description: Published as part of Huang, Mian, Shi, Benze, Wang, Chunguang & Xu, Kuidong, 2021, Two new species of nematodes from shallow and deep-water sediments in the South China Sea, pp. 490-502 in Zootaxa 5016 (4) on page 491, DOI: 10.11646/zootaxa.5016.4.2, http://zenodo.org/record/5222467
Sub-pixel Response of Double-SOI Pixel Sensors for X-ray Astronomy
Creators: name: Hagino, K.
name: Negishi, K.
name: Oono, K.
name: Yarita, K.
name: Kohmura, T.
name: Tsuru, T. G.
name: Tanaka, T.
name: Harada, S.
name: Kayama, K.
name: Matsumura, H.
name: Mori, K.
name: Takeda, A.
name: Nishioka, Y.
name: Yukumoto, M.
name: Fukuda, K.
name: Hida, T.
name: Arai, Y.
name: Kurachi, I.
name: Kishimoto, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We have been developing the X-ray silicon-on-insulator (SOI) pixel sensor called XRPIX for future astrophysical satellites. XRPIX is a monolithic active pixel sensor consisting of a high-resistivity Si sensor, thin SiO$_2$ insulator, and CMOS pixel circuits that utilize SOI technology. Since XRPIX is capable of event-driven readouts, it can achieve high timing resolution greater than $\sim 10{\rm ~μs}$, which enables low background observation by adopting the anti-coincidence technique. One of the major issues in the development of XRPIX is the electrical interference between the sensor layer and circuit layer, which causes nonuniform detection efficiency at the pixel boundaries. In order to reduce the interference, we introduce a Double-SOI (D-SOI) structure, in which a thin Si layer (middle Si) is added to the insulator layer of the SOI structure. In this structure, the middle Si layer works as an electrical shield to decouple the sensor layer and circuit layer. We measured the detector response of the XRPIX with D-SOI structure at KEK. We irradiated the X-ray beam collimated with $4{\rm ~μmϕ}$ pinhole, and scanned the device with $6{\rm ~μm}$ pitch, which is 1/6 of the pixel size. In this paper, we present the improvement in the uniformity of the detection efficiency in D-SOI sensors, and discuss the detailed X-ray response and its physical origins.
description: 12 pages, 9 figures, accepted for publication in Journal of Instrumentation
Examining the Leontief Paradox in U.S. Agricultural Trade
Creators: name: Lee, Chinkook
name: Wills, Darryl
name: Schluter, Gerald
name: Lee, Chinkook
name: Wills, Darryl
name: Schluter, Gerald
Publisher: name: Unknown
Year: 1988
Subjects: Agribusiness
Production Economics

description: Factor intensity of United States agricultural trade is examined in the context of Leontief's classic paradox using Leontief's method as well as methods developed recently by Leamer and others. Findings indicate that factor endowments are important determinants of U.S. agriculture's comparative advantage in trade as suggested by the Heckscher-Ohlin theory.
Dual frequency caesium spin maser
Creators: name: Bevington, Patrick
name: Gartman, Rafal
name: Stadnik, Yevgeny V.
name: Chalupczak, Witold
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Co-magnetometers have been validated as valuable components of the atomic physics toolbox in fundamental and applied physics. So far, the explorations have been focused on systems involving nuclear spins. Presented here is a demonstration of an active alkali-metal (electronic) system, i.e. a dual frequency spin maser operating with the collective caesium F=3 and F=4 spins. The experiments have been conducted in both magnetically shielded and unshielded environments. In addition to the discussion of the system's positive feedback mechanism, the implementation of the dual frequency spin maser for industrial non-destructive testing is shown. The stability of the F=3 and F=4 spin precession frequency ratio measurement is limited at the $3 \times 10^{-8}$ level, by the laser frequency drift, corresponding to a frequency stability of 1.2 mHz for $10^4$ sec integration time. We discuss measurement strategies that could improve this stability to nHz, enabling measurements with sensitivities to the axion-nucleon and axion-electron interactions at the levels of $f_a/C_N \sim 10^9$ GeV and $f_a/C_e \sim 10^8$ GeV, respectively.
description: 5 pages, 4 figures
Quantum statistics in complex networks
Creators: name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In this work we discuss the symmetric construction of bosonic and fermionic networks and we present a case of a network showing a mixed quantum statistics. This model takes into account the different nature of nodes, described by a random parameter that we call energy, and includes rewiring of the links. The system described by the mixed statistics is an inhomogemeous system formed by two class of nodes. In fact there is a threshold energy $ε_s$ such that nodes with lower energy $(εε_s)$ decrease their connectivity in time.
description: 5 pages, 2 figures
The AfCFTA is a Lightning Rod for Regional Integration and Free Trade
Creators: name: Osoro, Kennedy
Publisher: name: figshare
Year: 2019
Subjects: Economics

description: This paper looks at the construction of tariff band structure and linear cut of the AfCFTA countries. AfCFTA symbols a different landmark on the road to deeper regional integration and the pursuit for well-built and prolonged growth, which the extensive nature will transform businesses especially small and medium-sized enterprises (SMEs), traders and consumers because of the removal of tariffs, and non-tariff barriers by 2025 for developing countries ,2030 for LDCs and 2045 for the six countries. The agreement commits countries to removing tariffs on 90 percent on inclusion list after 5 and 10 years for the non LDCs and LDCs in that order, while the remaining 10 percent of sensitive items to be phased out after 10 and 13 years for developing and non LDCs respectively on 7% for sensitive list and 3% for exclusion list. Thus the AfCFTA may make global trade regime either to become stronger or to remain under attack from a membership of 55 less one (Eritrea) highly diverse countries of Africa. Further, the AfCFTA aims to preserve existing regional economic communities as building blocs. With regard to disposition toward trade liberalization COMESA and SADC countries show much more likelihood and stand to liberalize faster than the ECCAS, UMA and ECOWAS countries. This can be done through an equal annual reduction of 20 percent to all tariffs above 5 percent over 5 years for the developing countries and 10 percent equal annual deductions for 10 years for LDCs.
Additional file 2 of Improved access and care through the implementation of virtual Hallway, a consultation platform in Nova Scotia: preliminary findings from a feasibility evaluation
Creators: name: Tomblin Murphy, Gail
name: Sampalli, Tara
name: Koto, Prosper
name: Chamberland-Rowe, Caroline
name: Guk, Julia
name: Ventura, Nelson
name: Hartlen, Justin
name: Rasic, Daniel
name: Allen, Jonathan
name: Benson, Kianna
name: MacNeil, Ryan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Supplementary Material 2. Images of the Virtual Hallway consult booking platform.
Does The Force From an Extra Dimension Contradict Physics in 4D?
Creators: name: de Leon, J. Ponce
Publisher: name: arXiv
Year: 2001
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the question of whether violation of 4D physics is an inevitable consequence of existence of an extra non-compactified dimension. Recent investigations in membrane and Kaluza-Klein theory indicate that when the metric of the spacetime is allowed to depend on the extra coordinate, i.e., the cilindricity condition is dropped, the equation describing the trajectory of a particle in one lower dimension has an extra force with some abnormal properties. Among them, a force term parallel to the four-velocity of the particle and, what is perhaps more surprising, $u_μf^μ \neq u^μf_μ$. These properties violate basic concepts in 4D physics. In this paper we argue that these abnormal properties are {\em not} consequence of the extra dimension, but result from the formalism used. We propose a new definition for the force, from the extra dimension, which is free of any contradictions and consistent with usual 4D physics. We show, using warp-products metrics, that this new definition is also more consistent with our physical intuition. The effects of this force could be detected observing objects moving with high speed, near black holes and/or in cosmological situations.
description: Minor addition in the Introduction to match the version to appear in Phys. Lett. B
A Linear Programming Algorithm for Determining Mean-Gini Efficient Farm Plans
Creators: name: Okunev, John
name: Dillon, John L.
name: Okunev, John
name: Dillon, John L.
Publisher: name: Unknown
Year: 1988
Subjects: Farm Management
Productivity Analysis

description: A linear programming algorithm is presented for determination of farm plans that are efficient under the mean-Gini criterion. Use of the algorithm is illustrated by applying it to a standard problem from the literature. The set of efficient plans is compared with those based on meanvariance and MOTAD analysis of the same problem.
A Sideband-Enhanced Cold Atomic Source For Optical Clocks
Creators: name: Barbiero, Matteo
name: Tarallo, Marco G.
name: Calonico, Davide
name: Levi, Filippo
name: Lamporesi, G.
name: Ferrari, G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate the enhancement and optimization of a cold strontium atomic beam from a two-dimensional magneto-optical trap (2D-MOT) transversely loaded from a collimated atomic beam by adding a sideband frequency to the cooling laser. The parameters of the cooling and sideband beams were scanned to achieve the maximum atomic beam flux and compared with Monte Carlo simulations. We obtained a 2.3 times larger, and 4 times brighter, atomic flux than a conventional, single-frequency 2D-MOT, for a given total power of 200 mW. We show that the sideband-enhanced 2D-MOT can reach the loading rate performances of space demanding Zeeman slower-based systems, while it can overcome systematic effects due to thermal beam collisions and hot black-body radiation shift, making it suitable for both transportable and accurate optical lattice clocks. Finally we numerically studied the possible extensions of the sideband-enhanced 2D-MOT to other alkaline-earth species.
Relativistic predictions of exclusive $^{208}Pb(\vec{p},2p) ^{207}T\ell$ analyzing powers at an incident energy of 202 MeV
Creators: name: Hillhouse, C.
name: Mano, J.
name: Cowley, A. A.
name: Neveling, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Within the framework of the relativistic distorted wave impulse approximation (DWIA), we investigate the sensitivity of the analyzing power - for exclusive proton knockout from the 3s$_{1/2}$, 2d$_{3/2}$ and 2d$_{5/2}$ states in $^{208}$Pb, at an incident laboratory kinetic energy of 202 MeV, and for coincident coplanar scattering angles ($28.0^{\circ}$, $-54.6^{\circ}$) - to different distorting optical potentials, finite-range (FR) versus zero-range (ZR) approximations to the DWIA, as well as medium-modified coupling constants and meson masses. Results are also compared to the nonrelativistic DWIA predictions based on the Schrödinger equation. Whereas the nonrelativistic model fails severely, both ZR and FR relativistic DWIA models provide an excellent description of the data. For the FR predictions, it is necessary to invoke a 20% reduction of sigma-nucleon and omega-nucleon coupling constants as well as for $σ$-, $ρ$- and $ω$-meson masses, by the nuclear medium. On the other hand, the ZR predictions suggest that the strong interaction in the nuclear medium is adequately represented by the free nucleon-nucleon interaction associated with the impulse approximation. We also demonstrate that, although the analyzing power is relatively insensitive to the use different relativistic global optical potential parameter sets, the prominent oscillatory behavior of this observable is largely attributed to distortion of the scattering wave functions relative to their plane wave values.
description: 16 pages, 3 figures, submitted to Phys. Rev. C
Book Reviews
Creators: name: Johansson, Valter
name: Parton, Kevin A.
name: Johansson, Valter
name: Parton, Kevin A.
Publisher: name: Unknown
Year: 1988
Subjects: Teaching/Communication/Extension/Profession

description: Books Reviewed: MIDAS, A Bioeconomic Model of a Dryland Farm System by R. S. Kingvell and D. J. Panell; and Research Methodology for Economists: Philosophy and Practice by Glenn L. Johnson
Primordial black hole merger rates: distributions for multiple LIGO observables
Creators: name: Gow, Andrew D.
name: Byrnes, Christian T.
name: Hall, Alex
name: Peacock, John A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have calculated the detectable merger rate of primordial black holes, as a function of the redshift, as well as the binary's mass ratio, total mass and chirp mass (observables that have not previously been explored in great detail for PBHs). We consider both the current and design sensitivity of LIGO and five different primordial black hole mass functions, as well as showing a comparison to a predicted astrophysical black hole merger rate. We show that the empirical preference for nearly equal-mass binaries in current LIGO/Virgo data can be consistent with a PBH hypothesis once observational selection effects are taken into account. However, current data do exclude some PBH mass distributions, and future data may be able to rule out the possibility that all observed BH mergers had a primordial origin.
description: 23 pages + appendices, 17 figures; v2: Minor changes, clarification of probabilities in table 1 supersedes published version
Paracomesoma Schuurmans Stekhoven 1950
Creators: name: Huang, Mian
name: Shi, Benze
name: Wang, Chunguang
name: Xu, Kuidong
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Nematoda
Adenophorea
Desmodorida
Comesomatidae
Paracomesoma

description: Genus Paracomesoma Schuurmans Stekhoven, 1950
 Diagnosis. (Modified from Huang & Huang (2018)) Multispiral amphideal fovea with 2-3 turns. Six outer labial sensilla may be unequal in length. Cuticle with transverse striations or punctuations. Lateral differentiation present or absent. Anterior sensilla in three distinctly separated circles. Posterior portion of the buccal cavity cylindrical, with sclerotized walls and provided with three or six thorn-like projections at the border of the anterior portion. Spicules long and slender. Gubernaculum plate-like without dorsal apophysis. Precloacal supplements present.
description: Published as part of Huang, Mian, Shi, Benze, Wang, Chunguang & Xu, Kuidong, 2021, Two new species of nematodes from shallow and deep-water sediments in the South China Sea, pp. 490-502 in Zootaxa 5016 (4) on page 496, DOI: 10.11646/zootaxa.5016.4.2, http://zenodo.org/record/5222467