cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Metal enrichment in the circumgalactic medium and Lyα haloes around quasars at z $\sim$3
Creators: name: Guo, Yucheng
name: Maiolino, Roberto
name: Jiang, Linhua
name: Matsuoka, Kenta
name: Nagao, Tohru
name: Dors, Oli Luiz
name: Ginolfi, Michele
name: Henden, Nick
name: Bennett, Jake
name: Sijacki, Debora
name: Puchwein, Ewald
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deep observations have detected extended Ly$α$ emission nebulae surrounding tens of quasars at redshift 2 to 6. However, the metallicity of such extended haloes is still poorly understood. We perform a detailed analysis on a large sample of 80 quasars at $z\sim3$ based on MUSE-VLT data. We find clear evidence of extended emission of the UV nebular lines such as CIV or HeII for about 20$\%$ of the sample, while CIII] is only marginally detected in a few objects. By stacking the cubes we detect emission of CIV, HeII and CIII] out to a radius of about 45 kpc. CIV and HeII show a radial decline much steeper than Ly$α$, while CIII] shows a shallower profile similar to Ly$α$ in the inner 45 kpc. We infer that the average metallicity of the circumgalactic gas within the central 30-50~kpc is $\sim$0.5 solar, or even higher. However, we also find evidence of a component of the Ly$α$ haloes, which has much weaker metal emission lines relative to Ly$α$. We suggest that the high metallicity of the circumgalactic medium within the central 30-50 kpc is associated with chemical pre-enrichment by past quasar-driven outflows and that there is a more extended component of the CGM that has much lower metallicity and likely associated with near-pristine gas accreted from the intergalactic medium. We show that our observational results are in good agreement with the expectations of the FABLE zoom-in cosmological simulations.
description: 24 pages, 17 figures. Accepted for publication in ApJ
Monte Carlo Simulation of Spin-Polarized Transport
Creators: name: Shen, Min
name: Saikin, Semion
name: Cheng, Ming-C.
name: Privman, Vladimir
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Monte Carlo simulations are performed to study the in-plane transport of spin-polarized electrons in III-V semiconductor quantum wells. The density matrix description of the spin polarization is incorporated in the simulation algorithm. The spin-orbit interaction terms generate coherent evolution of the electron spin polarization and also cause dephasing. The spatial motion of the electrons is treated semiclassically. Three different scattering mechanisms--optical phonons, acoustic phonons and ionized impurities--are considered. The electric field is calculated self-consistently from the charge distribution. The Monte Carlo scheme is described, and simulation results are reported for temperatures in the range 77-300 K.
description: 11 pages, 4 figures
What influences use of language assessment? (Denman et al., 2021)
Creators: name: Denman, Deborah
name: Cordier, Reinie
name: Kim, Jae-Hyun
name: Munro, Natalie
name: Speyer, Renée
Publisher: name: ASHA journals
Year: 2021
Subjects: subject: Language
subject: 160701 Clinical Social Work Practice
subject: FOS: Sociology

description: Purpose: This study reports on data from a survey of speech-language pathologists’ (SLPs) language assessment practices for elementary school–age children. The objective was to investigate the regularity with which SLPs use different types of assessments (described across data types, task types, environmental contexts, and dynamic features). This study also investigated factors that influence assessment practice, the main sources from which SLPs obtain information on language assessment and the main challenges reported by SLPs in relation to language assessment.Method: A web-based survey was used to collect information from 407 Australian SLPs regarding the types of assessments they use. Factors that influenced the regularity with which different types of assessments were used were investigated using regression analysis.Results: Most SLPs regularly used assessments that are norm-referenced, decontextualized, and conducted in a clinical context and less regularly used other types of assessments. Service agency, Australian state, and SLPs’ years of experience were found to influence the regularity with which some types of assessments were used. Informal discussions with colleagues were the most frequently identified source of information on assessment practice. Main challenges related to limited time, lack of assessment materials, and lack of confidence in assessing children from culturally and linguistically diverse backgrounds.Conclusions: SLPs could improve current language assessment practice for elementary school–age children through more regular use of some types of assessments. Actions to facilitate evidence-based assessment practice should consider the contextual differences that exist between service agencies and states and address challenges that SLPs experience in relation to language assessment.
Supplemental Material S1. Taxonomy terms (with definitions and examples) for describing assessments according to data types, task type, environmental context and dynamic features (Denman et al., 2019).
Supplemental Material S2. Survey for Australian speech-language pathologists: Questions related to the data reported in this study.
Supplemental Material S3. Number of speech-language pathologists surveyed in relation to estimated population for each Australian state/territory.
Denman, D., Cordier, R., Kim, J.-H., Munro, N., & Speyer, R. (2021). What influences speech-language pathologists' use of different types of language assessments for elementary school–age children? Language, Speech, and Hearing Services in Schools. Advance online publication. https://doi.org/10.1044/2021_LSHSS-20-00053
Improving Privacy in Graphs Through Node Addition
Creators: name: Takbiri, Nazanin
name: Shao, Xiaozhe
name: Gao, Lixin
name: Pishro-Nik, Hossein
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The rapid growth of computer systems which generate graph data necessitates employing privacy-preserving mechanisms to protect users' identity. Since structure-based de-anonymization attacks can reveal users' identity's even when the graph is simply anonymized by employing naive ID removal, recently, $k-$anonymity is proposed to secure users' privacy against the structure-based attack. Most of the work ensured graph privacy using fake edges, however, in some applications, edge addition or deletion might cause a significant change to the key property of the graph. Motivated by this fact, in this paper, we introduce a novel method which ensures privacy by adding fake nodes to the graph. First, we present a novel model which provides $k-$anonymity against one of the strongest attacks: seed-based attack. In this attack, the adversary knows the partial mapping between the main graph and the graph which is generated using the privacy-preserving mechanisms. We show that even if the adversary knows the mapping of all of the nodes except one, the last node can still have $k-$anonymity privacy. Then, we turn our attention to the privacy of the graphs generated by inter-domain routing against degree attacks in which the degree sequence of the graph is known to the adversary. To ensure the privacy of networks against this attack, we propose a novel method which tries to add fake nodes in a way that the degree of all nodes have the same expected value.
description: Graph Privacy
Acalypha elizabethae Howard 1986
Creators: name: Muñoz-Rodríguez, Pablo
name: Cardiel, José María
name: Atha, Daniel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Acalypha
Acalypha elizabethae

description: 7. Acalypha elizabethae Howard (1986: 1). Type:― SAINT LUCIA. Gros Piton, Soufrière, 3 May 1950, R.A. Howard 11492 (holotype A!).
 Distribution:— America. Caribbean: Saint Lucia.
 Voucher:— SAINT LUCIA. Petit Piton, Soufrière, 2 May 1985, L. L . Jean-Pierre 141 (A).
 References:— Howard (1989: 8), Govaerts et al. (2000: 61).
description: Published as part of Muñoz-Rodríguez, Pablo, Cardiel, José María & Atha, Daniel, 2014, Acalypha subgenus Linostachys (Euphorbiaceae, Acalyphoideae): a global review, pp. 199-221 in Phytotaxa 166 (3) on page 207, DOI: 10.11646/phytotaxa.166.3.2, http://zenodo.org/record/5138433
The Effect of Relative Income in the Dynamics of Migration: Evidence from the VHLSS Panel Data
Creators: name: Lee, Won Fy
name: Lee, Won Fy
Publisher: name: Unknown
Year: 2012
Subjects: Community/Rural/Urban Development
Consumer/Household Economics

description: This paper examines, within the Vietnamese context, the role of relative deprivation, as proposed by Stark (1984) and Stark and Taylor (1989, 1991), in the dynamics of internal migration. The conventional wisdom in the economics of migration literature, such as the model of Harris and Todaro (1970), holds that as the rural-urban income gap widens, the influx of migrants from rural to urban areas increases until equilibrium is reached. The absolute income gap is of the utmost importance in the decision-making process concerning migration in that model. On the other hand, Stark (1984) hypothesizes that household members undertake migration not necessarily to increase the household’s absolute income but rather to improve the household’s position (in terms of relative deprivation) with respect to a specific reference group.
Additional file 1 of A simple APACHE IV risk dynamic nomogram that incorporates early admitted lactate for the initial assessment of 28-day mortality in critically ill patients with acute myocardial infarction
Creators: name: Song, Jikai
name: Yu, Tianhang
name: Yan, Qiqi
name: Wu, Liuyang
name: Li, Sujing
name: Wang, Lihong
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1: Table S1. Comparison of non-Q AMI and anterior AMI population characteristics. Table S2. Multicollinearity check. Table S3. NRI and IDI analysis of the improvement of our full model on the M-CARS model. Table S4. Multiple interpolation for the univariate analysis. Table S5. Multiple interpolation for the generalized linear models. Table S6. The applicability of the model was explored by comparing the baseline disease of patients admitted with or without lactate measurement in the eICU database of 6817 AMI patients. Fig. S1. Using XGBoost as a pre-experiment, the variables associated with 28-day mortality were screened. Fig. S2. One by one, the ROC curves of lactate and APACHE IV with 28-day mortality were examined. Fig. S3. One by one, the DCA curves of lactate and APACHE IV with 28-day mortality were examined. Fig. S4. The AUC for the training group was 0.831, and the AUC for the validation group was 0.805. Fig. S5. The AUC for the M-CARS model was 0.672, and the AUC for our full model was 0.819. Fig. S6. The DCA curves of M-CARS model and out full model with 28-day mortality were examined.
Chemical composition of UV-bright star ZNG 4 in the globular cluster M13
Creators: name: Ambika, S.
name: Parthasarathy, M.
name: Aoki, W.
name: Fujii, T.
name: Nakada, Y.
name: Ita, Y.
name: Izumiura, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a detailed model-atmosphere analysis of ZNG 4, a UV-bright star in the globular cluster M13. From the analysis of a high resolution ($ R \approx 45,000 $) spectrum of the object, we derive the atmospheric parameters to be $\rm T_{eff} = 8500\pm 250$ K, log g $=$ 2.5 $\pm$ 0.5 and $\rm [Fe/H]= -1.5$. Except for magnesium, chromium and strontium, all other even Z elements are enhanced with titanium and calcium being overabundant by a factor of 0.8 dex. Sodium is enhanced by a factor of 0.2 dex. The luminosity of ZNG 4 and its position in the color-magnitude diagram of the cluster indicate that it is a Supra Horizontal Branch (SHB) (post-HB) star. The underabundance of He and overabundances of Ca, Ti, Sc and Ba in the photosphere of ZNG 4 indicate that diffusion and radiative levitation of elements may be in operation in M 13 post-HB stars even at $\rm T_{eff}$ of 8500K. Detailed and more accurate abundance analysis of post-HB stars in several globular clusters is needed to further understand their abundance anomalies.
description: 17 pages, 5 figures, Accepted for publication in A&A
Le Royer de la Tournerie, Etienne, Traité des fiefs à l'usage de la province de Normandie, Conformément à la nouvelle Jurisprudence. Nouvelle Edition, corrigée, augmentée et enrichie d'un Traité des Droits Honorifiques.
Creators: name: Le Royer de la Tournerie, Etienne
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017

description: Etienne Le Royer de la Tournerie, né dans dans le Domfrontais vers 1730, mort en 1812 à Domfront, est reçu au barreau de Rouen en 1754. En 1766, il quitte la capitale provinciale pour endosser la charge d'avocat et de procureur du roi au bailliage de Domfront. Dès la Révolution, dont il adopte le principe, il devient commissaire près le tribunal du district de Domfront et demeurera dans la magistrature jusqu'à la fin de sa carrière.
Il est l'auteur d'un Traité des fiefs à l’usage de la province de Normandie, conformément à la nouvelle jurisprudence (Paris, G. Valeyre père, 1763 et 1769, in-12°), Ditto augmenté d’un traité des droits honorifiques (Rouen, Lallemant, 1772, in-12° ; 1784, Oursel, in-12°) ainsi que d'un Nouveau Commentaire portatif de la coutume de Normandie à laquelle on a ajouté les usages locaux qui sont observés dans les différents cantons de cette province (Paris, Valeyre père, 1769), plusieurs fois réédité.
description: Source: A copy of Google book https://babel.hathitrust.org/cgi/pt?id=hvd.hn3aj9;view=1up;seq=9
https://hdl.handle.net/2027/hvd.hn3aj9
description: Relation: vignette : https://www.nakala.fr/data/11280/0492689c
description: Provenance: Annie Endicott Nourse
VLT/ISAAC Spectra of the H-beta Region in Intermediate Redshift Quasars
Creators: name: Sulentic, J. W.
name: Stirpe, G. M.
name: Marziani, P.
name: Zamanov, R.
name: Calvani, M.
name: Braito, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high S/N spectra of the H-beta region in 17 intermediate redshift (0.85 le z le 2.5) quasars. The spectra represent first results of our campaign to test the redshift/luminosity robustness of the so-called Eigenvector 1 (E1) parameter space as developed for low redshift AGN in Sulentic et al. (2000). The new quasars span the luminosity range -26 ge M_B ge -29 while most of our low redshift sample (n=215) involve sources in the range -19 ge M_B ge -26. The high redshift sources show E1 parameter values and domain occupation that are similar to our low redshift sample supporting earlier findings that E1 parameters are uncorrelated with source luminosity. Elementary accretion theory can account for a systematic increase of the minimum observed H-beta profile width with source luminosity. Narrow line Seyfert 1 sources with M_B = -28 show FWHM(H-beta) as much as 2000 km/s broader than those with M_B = -22. A possible change in the higher redshift/luminosity sources involves systematically weaker [OIII]4959,5007 narrow line emission.
description: 17 pages, 13 figures, accepted by A&A; added references and minor corrections
Debye-Hückel potential at an interface between two media
Creators: name: Morozov, Alexander
name: Muntz, Iain
name: Thijssen, Job H. J.
name: Marenduzzo, Davide
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Electrostatic interactions between point charges embedded into interfaces separating dielectric media are omnipresent in soft matter systems and often control their stability. Such interactions are typically complicated and do not resemble their bulk counterparts. For instance, the electrostatic potential of a point charge at an air-water interface falls off as $r^{-3}$, where $r$ is the distance from the charge, exhibiting a dipolar behaviour. This behaviour is often assumed to be generic, and is widely referred to when interpreting experimental results. Here we explicitly calculate the in-plane potential of a point charge at an interface between two electrolyte solutions with different dielectric permittivities and Debye screening lengths. We show that the asymptotic behaviour of this potential is neither a dipole, which characterises the potential at air-water interfaces, nor a screened monopole, which describes the bulk behaviour in a single electrolyte solution. By considering the same problem in arbitrary dimensions, we find that the physics behind this difference can be traced to the asymmetric propagation of the interaction in the two media. Our results are relevant, for instance, to understand the physics of charged colloidal particles trapped at oil-water interfaces.
description: 11 pages, 7 figures
Interplay of curvature and rigidity in shape-based models of confluent tissue
Creators: name: Sussman, Daniel M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Rigidity transitions in simple models of confluent cells have been a powerful organizing principle in understanding the dynamics and mechanics of dense biological tissue. In this work we explore the interplay between geometry and rigidity in two-dimensional vertex models confined to the surface of a sphere. By considering shapes of cells defined by perimeters whose magnitude depends on geodesic distances and areas determined by spherical polygons, the critical shape index in such models is affected by the size of the cell relative to the radius of the sphere on which it is embedded. This implies that cells can collectively rigidify by growing the size of the sphere, i.e. by tuning the curvature of their domain. Finite-temperature studies indicate that cell motility is affected well away from the zero-temperature transition point.
description: 8 pages, 4 figures, fun numerical results
Planets in Stellar Clusters Extensive Search. II. Discovery of 57 Variables in the Cluster NGC 2158 with Millimagnitude Image Subtraction Photometry
Creators: name: Mochejska, B. J.
name: Stanek, K. Z.
name: Sasselov, D. D.
name: Szentgyorgyi, A. H.
name: Westover, M.
name: Winn, J. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have undertaken a long-term project, Planets in Stellar Clusters Extensive Search (PISCES), to search for transiting planets in open clusters. NGC 2158 is one of the targets we have chosen -- an intermediate age, populous, rather metal poor cluster. In this paper we present the results of a search for variable stars in the data from the first season of monitoring at the FLWO 1.2 m telescope. This is the first variability search ever conducted in this cluster. We present a catalog of 57 variable stars, most with low amplitude variability. Among the variables is a cataclysmic variable (CV) which underwent a 2.5 mag outburst. If it is a member of NGC 2158, this would be the fourth CV known in an open cluster. We have also found five delta Scuti stars, three of which we have two or more detectable modes of pulsation. Of the 57 variables discovered, 28 have R-band amplitudes of 5% or below. Six of those vary at or below the 2% level, including one with 0.08% variability.
description: 13 pages LaTeX, including 8 figures and 4 tables, submitted to Astronomical Journal. Version with full resolution figures available through ftp at ftp://cfa-ftp.harvard.edu/pub/bmochejs/PISCES/papers/2_N2158/
Additional file 13 of Proteogenomic insights into the biology and treatment of pancreatic ductal adenocarcinoma
Creators: name: Tong, Yexin
name: Sun, Mingjun
name: Chen, Lingli
name: Wang, Yunzhi
name: Li, Yan
name: Li, Lingling
name: Zhang, Xuan
name: Cai, Yumeng
name: Qie, Jingbo
name: Pang, Yanrui
name: Xu, Ziyan
name: Zhao, Jiangyan
name: Zhang, Xiaolei
name: Liu, Yang
name: Tian, Sha
name: Qin, Zhaoyu
name: Feng, Jinwen
name: Zhang, Fan
name: Zhu, Jiajun
name: Xu, Yifan
name: Lou, Wenhui
name: Ji, Yuan
name: Zhao, Jianyuan
name: He, Fuchu
name: Hou, Yingyong
name: Ding, Chen
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 13: Fig. S13. Proteomic subtypes divided early-stage PDAC patients into subtypes with different prognosis, related to Fig. 6. A Summary of the relationship between proteomic subtypes and TNM stage subtypes. B Kaplan-Meier curves for overall survival of early-stage (IA and IB) PDAC patients based on 3 proteomic subtypes (log-rank test). C Bar plot indicating the enriched pathways in early-stage patients who were divided into three proteomic subtypes. D Heatmap of differentially expressed kinase signatures among the three proteomic subtypes in patients with early-stage PDAC. **** p < 1.0E-4, *** p < 1.0E-3, ** p < 1.0E-2, * p < 0.05, ns > 0.05.
Factors influencing consumer purchase intentions for organically grown products in Shelly Beach shopping Centre, Port Shepstone in KwaZulu-Natal Province, South Africa
Creators: name: Wekeza, S.
name: Sibanda, M.
name: Wekeza, S.
name: Sibanda, M.
Publisher: name: Unknown
Year: 2018
Subjects: Consumer/Household Economics

description: In the last few years, the market of organically grown products has continued to grow. This is due to the continued increase of concerns regarding the environmental, food safety and health issues. This led to an increase in demand which outstrips the supply. The study aims to identify the factors influencing the purchase of organically grown products in the Shelly Beach Shopping centre. The study employed a quantitative descriptive cross-sectional design. The study comprised of 150 organically grown product consumers who were selected by means of a systematic random sampling technique. A multiple regression analysis was used to test for the factors influencing the purchase intentions of organically grown products. Multiple regression model revealed that factors like; ethnicity; household size; employment status; household income and perceptions that organically grown products have a better smell and freshness were found to have a positive and significant influence on the purchase intentions. Conversely, age, education, and perceptions that organically grown products have a good taste and quality and limited availability were found to have a negative and significant influence on the purchase intentions of organically grown products. Key words: Multiple regression model, organically grown products, perceptions, preferences, purchase intentions, Shelly Beach Shopping centre.
Dynamic critical behavior of the classical anisotropic BCC Heisenberg antiferromagnet
Creators: name: Tsai, Shan-Ho
name: Bunker, Alex
name: Landau, D. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a recently implemented integration method [Krech et. al.] based on an iterative second-order Suzuki-Trotter decomposition scheme, we have performed spin dynamics simulations to study the critical dynamics of the BCC Heisenberg antiferromagnet with uniaxial anisotropy. This technique allowed us to probe the narrow asymptotic critical region of the model and estimate the dynamic critical exponent $z=2.25 \pm 0.08$. Comparisons with competing theories and experimental results are presented.
description: Latex, 3 pages, 5 figures
Household food security and coping strategies: a case study of Tembisa Township of Ekurhuleni Municipality, Gauteng Province, South Africa
Creators: name: Mojela, T.
name: Hlongwane, J.
name: Ledwaba, L.
name: Mojela, T.
name: Hlongwane, J.
name: Ledwaba, L.
Publisher: name: Unknown
Year: 2018
Subjects: Food Security and Poverty

description: This study was designed to analyse factors determining household food security and coping strategies in Tembisa township of Ekurhuleni municipality, Gauteng Province, South Africa. The systematic random sampling technique was to collect primary data using well-structured questionnaire and oral interview. Data was analysed using descriptive statistics, logistic regression model, coping strategy index and Household Food Insecurity Access Scale (HFIAS). Results from descriptive statistics showed that male headed household were more than female headed household, and the maximum household size were nine (9), minimum were one (1). Results from HFIAS revealed that 38% of the households are food secured, while 28% being mildly food insecure, 26% being severely food insecure, and 8% were moderately food insecure. The results further revealed that household size, source of income, own house, total monthly income and age of the household head influence household food security negatively and positively. Coping strategy index results showed that �Rely on less expensive and preferred food has been used by 86% of the population, followed by reduce number of meals eaten in a day (60%). Since the source of income found influencing household food security, the study recommends the creation of employment through development programmes such as Expanded Public Works Programme (EPWP). The study further recommends that household should practice back yard farming. KEYWORDS: Food security, Household food insecurity access scale, socio-economic characteristics.
Acalypha gillmanii Racliffe-Smith 1975
Creators: name: Muñoz-Rodríguez, Pablo
name: Cardiel, José María
name: Atha, Daniel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Acalypha
Acalypha gillmanii

description: 12. Acalypha gillmanii Racliffe-Smith (1975: 675). Type: ― TANZANIA. Southern Province. Lindi District: Lwengala Forest, 23 March 1943, H. Gillman 1359 (holotype EA!, isotype K!).
 Distribution:— Africa, East Tropical Africa: Tanzania.
 Voucher:— TANZANIA: T.6- Kichi Hills, 8º10´S, 38º 37´W, 450 m, 22 December 1976, K. Vollesen 4250 (C, EA, K, WAG).
 References:— Radcliffe-Smith (1987: 275), Govaerts, Frodin & Radcliffe-Smith (2000: 64), Klopper et al. (2006: 275), Lebrun & Stork (1991: 204, 2006: 20).
description: Published as part of Muñoz-Rodríguez, Pablo, Cardiel, José María & Atha, Daniel, 2014, Acalypha subgenus Linostachys (Euphorbiaceae, Acalyphoideae): a global review, pp. 199-221 in Phytotaxa 166 (3) on page 208, DOI: 10.11646/phytotaxa.166.3.2, http://zenodo.org/record/5138433
Evolution of dissipative regimes in atomically thin $\text{Bi}_{2}\text{Sr}_{2}\text{CaCu}_{2}\text{O}_{8+x}$ superconductor
Creators: name: Shokri, Sanaz
name: Ceccardi, Michele
name: Confalone, Tommaso
name: Saggau, Christian N.
name: Lee, Yejin
name: Martini, Mickey
name: Gu, Genda
name: Vinokur, Valerii M.
name: Pallecchi, Ilaria
name: Nielsch, Kornelius
name: Caglieris, Federico
name: Poccia, Nicola
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Thermoelectric transport has been widely used to study Abrikosov vortex dynamics in unconventional superconductors. However, only a few thermoelectric studies have been conducted near the dimensional crossover that occurs when the vortex-vortex interaction length scale becomes comparable to the sample size. Here we report the effects of finite size on the dissipation mechanisms of the Nernst effect in the optimally doped $\text{Bi}_{2}\text{Sr}_{2}\text{CaCu}_{2}\text{O}_{8+x}$ high-temperature superconductor, down to the atomic length limit. To access this regime, we develop a new generation of thermoelectric chips based on silicon nitride microprinted circuit boards. These chips ensure optimized signals while preventing sample deterioration. Our results demonstrate that lateral confinement at the nanoscale can effectively reduce vortex dissipation. Investigating vortex dissipation at the micro- and nano-scale is essential for creating stable, miniaturized superconducting circuits.
Halley's comet of 87 BC on the coins of Armenian king Tigranes?
Creators: name: Gurzadyan, V. G.
name: Vardanyan, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Coins of Armenian king Tigranes II the Great (95-55 BC), silver and copper-bronze tetradrachms and drachms, clearly reveal a star with a tail on the royal tiara which may be associated with the Halley's comet passage of 87 BC. If so, one has another case when astronomical events can be useful for historical chronological problems, this would be a far earlier record of Halley in Armenia than was previously known from chronicles and also one of the earliest known images of Halley's comet.
description: The published version. The photos of coins are subject of copyright and can be used only upon permission of the first author
Nuclear medium effect on neutron capture reactions during neutron star mergers
Creators: name: Ogata, Kazuyuki
name: Bertulani, Carlos A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The discovery of gravitational waves has confirmed old theoretical predictions that binary systems formed with compact stars play a crucial role not only for cosmology and nuclear astrophysics. As a byproduct of these and subsequent observations, it is now clear that neutron-star mergers can be a competitive site for the production of half of the elements heavier than iron in the universe following a sequence of fast neutron capture reactions known as the r process. In this article we discuss an effect which has been so far neglected in calculations of r-process nucleosynthesis in neutron star mergers. We show that the corrections due to the neutron environment even at relatively small neutron densities, within the bounds of numerical hydrodynamical simulations of neutron star mergers and after the onset of the r process, are non-negligible and need to be taken into account to accurately describe the elemental abundance as determined by observations.
description: 5 pages, 5 figures, version to be published in J. Phys. G
Long distance quantum teleportation in a quantum relay configuration
Creators: name: de Riedmatten, H.
name: Marcikic, I.
name: Tittel, W.
name: Zbinden, H.
name: Collins, D.
name: Gisin, N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A long distance quantum teleportation experiment with a fiber-delayed Bell State Measurement (BSM) is reported. The source creating the qubits to be teleported and the source creating the necessary entangled state are connected to the beam splitter realizing the BSM by two 2 km long optical fibers. In addition, the teleported qubits are analyzed after 2,2 km of optical fiber, in another lab separated by 55 m. Time bin qubits carried by photons at 1310 nm are teleported onto photons at 1550 nm. The fidelity is of 77%, above the maximal value obtainable without entanglement. This is the first realization of an elementary quantum relay over significant distances, which will allow an increase in the range of quantum communication and quantum key distribution.
description: 4 pages, submitted
A Spatial Approach to Estimating Factors that Influence the Corn Basis
Creators: name: Adjemian, Michael K.
name: Kuethe, Todd
name: Breneman, Vince
name: Adjemian, Michael K.
name: Kuethe, Todd
name: Breneman, Vince
Publisher: name: Unknown
Year: 2011
Subjects: Agricultural marketing

description: It is well known that supply and demand fundamentals at any location affect the local basis. Because grain markets are tied together by spatial arbitrage, the local basis may also be affected by the supply and demand factors at neighboring locations. Whether or not this is the case, the corn basis is highly clustered across the United States; as such, OLS estimates of basis determinants may be inconsistent. We apply a spatial econometrics framework to adequately control for spatial effects, and find that the county-level corn basis is characterized by spatial spillovers: supply and demand factors in a given county affect its own basis, but also radiate out over space affecting the basis at neighboring counties. We find that unobserved basis determinants are also spatially correlated.
Acalypha gummifera Lundell 1940
Creators: name: Muñoz-Rodríguez, Pablo
name: Cardiel, José María
name: Atha, Daniel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Acalypha
Acalypha gummifera

description: 13. Acalypha gummifera Lundell (1940: 10). Type:― BELIZE. Toledo: Camp 34, British Honduras–Guatemala boundary survey, on hilltop in partial shade, ca. 900 m, 23 June 1934, W.A. Schipp 1290 (holotype MICH!, isotypes A!, BM!, F!, GH!, MO!, NY!).
 Distribution:— America. Mexico Southeast, Central America: Belize, Guatemala and Honduras.
 Voucher:— MEXICO: Chiapas, Mun. Ocosingo, west shore of Laguna Ocotal Grande, 3200 ft, 11 April 1967, D. Breedlove 15650 (DS, F, MICH, NY, US).
 References:— Standley & Steyermark (1949: 35), Lundell (1976: 243), Seymour (1979: 163), Dwyer & Spellman (1981: 187), Breedlove (1986: 84), Balick et al. (2000: 107), Govaerts et al. (2000: 66), Steinmann (2002: 78), Martínez-Gordillo et al. (2002: 261, 2006: 2), Nelson (2008: 386), CONABIO (2009).
description: Published as part of Muñoz-Rodríguez, Pablo, Cardiel, José María & Atha, Daniel, 2014, Acalypha subgenus Linostachys (Euphorbiaceae, Acalyphoideae): a global review, pp. 199-221 in Phytotaxa 166 (3) on page 209, DOI: 10.11646/phytotaxa.166.3.2, http://zenodo.org/record/5138433
Simulations of a classical spin system with competing superexchange and double-exchange interactions
Creators: name: Tsai, Shan-Ho
name: Landau, D. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Monte-Carlo simulations and ground-state calculations have been used to map out the phase diagram of a system of classical spins, on a simple cubic lattice, where nearest-neighbor pairs of spins are coupled via competing antiferromagnetic superexchange and ferromagnetic double-exchange interactions. For a certain range of parameters, this model is relevant for some magnetic materials, such as doped manganites, which exhibit the remarkable colossal magnetoresistance effect. The phase diagram includes two regions in which the two sublattice magnetizations differ in magnitude. Spin-dynamics simulations have been used to compute the time- and space-displaced spin-spin correlation functions, and their Fourier transforms, which yield the dynamic structure factor $S(q,ω)$ for this system. Effects of the double-exchange interaction on the dispersion curves are shown.
description: Latex, 3 pages, 3 figures
Portfolio Investment: Are Commodities Useful?
Creators: name: Yan, Lei
name: Garcia, Philip
name: Yan, Lei
name: Garcia, Philip
Publisher: name: Unknown
Year: 2014
Subjects: Agricultural marketing

description: This paper investigates the usefulness of commodities in investors' portfolios within a mean- variance optimization framework. The analysis di_x000B_ers from previous research by considering multiple investment tools including individual commodity futures contracts, three generations of commodity indices and by controlling for estimation error in portfolio optimization pro- cess. Rather generally, the results demonstrate that including individual commodities or the first- and second-generation commodity indices do little to enhance portfolio performance. Similarly, when an initial portfolio is diversi_x000C_ed, the risk-reducing ability of agricultural commodities is much weaker than identi_x000C_ed by previous research. In contrast, including the third-generation indices substantially improves the portfolio's Sharpe ratio by generating higher returns and lower risk.
Bayesian Inference of dense matter equation of state of neutron star with antikaon condensation
Creators: name: Parmar, Vishal
name: Thapa, Vivek Baruah
name: Kumar, Anil
name: Bandyopadhyay, Debades
name: Sinha, Monika
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we employ the Density Dependent Relativistic Hadron (DDRH) field theoretical Model in a Bayesian analysis to investigate the equation of state (EOS) of dense matter featuring antikaon condensation for $K^-$ and $\bar{K}^0$ inside neutron stars. The vector coupling parameters within the kaonic sector are determined through the iso-spin counting rule and quark model. Our study integrates various constraints, including $χ$EFT calculations, nuclear saturation properties, and astrophysical observations from pulsars PSR J0030+0451 and PSR J0740+66 and from the GW170817 event. We present posterior distributions of model parameters derived from these constraints, enabling us to explore the distributions of nuclear matter properties and neutron star (NS) characteristics such as radii, tidal deformabilities, central energy densities, and speed of sound. The antikaon potential at the 68(90)\% confidence intervals is determined to be $-129.36^{+12.53(+32.617)}_{-3.837(-5.696)}$ MeV. This aligns with several studies providing estimates within the range of $-120$ to $-150$ MeV. We find that the maximum neutron star mass is constrained to around 2M$_\odot$ due to the significant softening of the EOS caused by antikaon condensation. This softening results in a considerable decrease in the speed of sound. Although antikaon condensation for $K^-$ is not feasible inside the canonical neutron stars, it becomes feasible for higher NS masses. The condensation of both $K^-$ and $\bar{K}^0$ is probably present in the interior of neutron star with mass greater than 2M$_\odot$. We also discuss the interconnections among input variables, isoscalar and isovector aspects of the EOS, and specific NS properties in the context of antikaon condensation.
description: 19 pages, 10 figures, Accepted for publication in Physical Review C (in press)
Symbolic Formulae for Linear Mixed Models
Creators: name: Tanaka, Emi
name: Hui, Francis K. C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: A statistical model is a mathematical representation of an often simplified or idealised data-generating process. In this paper, we focus on a particular type of statistical model, called linear mixed models (LMMs), that is widely used in many disciplines e.g.~agriculture, ecology, econometrics, psychology. Mixed models, also commonly known as multi-level, nested, hierarchical or panel data models, incorporate a combination of fixed and random effects, with LMMs being a special case. The inclusion of random effects in particular gives LMMs considerable flexibility in accounting for many types of complex correlated structures often found in data. This flexibility, however, has given rise to a number of ways by which an end-user can specify the precise form of the LMM that they wish to fit in statistical software. In this paper, we review the software design for specification of the LMM (and its special case, the linear model), focusing in particular on the use of high-level symbolic model formulae and two popular but contrasting R-packages in lme4 and asreml.
Acalypha inaequilatera Cardiel 1994
Creators: name: Muñoz-Rodríguez, Pablo
name: Cardiel, José María
name: Atha, Daniel
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Acalypha
Acalypha inaequilatera

description: 14. Acalypha inaequilatera Cardiel (1994: 203). Type: ― COLOMBIA. Boyacá: prope Muzo, without date, J. Goudot s.n. (holotype K 600653!, isotype P 635270!).
 Distribution:— America. Western South America: Colombia.
 References:— Cardiel (1995a: 40, 1995b: 183), Govaerts et al. (2000: 68), Murillo (2004: 187).
 Notes:— This species is only known from the original Colombian collection by Justin Goudot, who collected in Colombia between 1822 and 1842 (Cardiel 1995a: 10). The municipality of Muzo was overused for its emerald deposits and has been greatly deforested; thus, we do not rule out that the species could be extinct.
description: Published as part of Muñoz-Rodríguez, Pablo, Cardiel, José María & Atha, Daniel, 2014, Acalypha subgenus Linostachys (Euphorbiaceae, Acalyphoideae): a global review, pp. 199-221 in Phytotaxa 166 (3) on page 209, DOI: 10.11646/phytotaxa.166.3.2, http://zenodo.org/record/5138433
Control of Multi-level Voltage States in a Hysteretic SQUID Ring-Resonator System
Creators: name: Stiffell, P.
name: Everitt, M. J.
name: Clark, T. D.
name: Ralph, J. F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper we study numerical solutions to the quasi-classical equations of motion for a SQUID ring-radio frequency (rf) resonator system in the regime where the ring is highly hysteretic. In line with experiment, we show that for a suitable choice of of ring circuit parameters the solutions to these equations of motion comprise sets of levels in the rf voltage-current dynamics of the coupled system. We further demonstrate that transitions, both up and down, between these levels can be controlled by voltage pulses applied to the system, thus opening up the possibility of high order (e.g. 10 state), multi-level logic and memory.
description: 8 pages, 9 figures
Observation of the dominant spin-triplet supercurrent in Josephson spin valves with strong Ni ferromagnets
Creators: name: Kapran, O. M.
name: Iovan, A.
name: Golod, T.
name: Krasnov, V. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We study experimentally nanoscale Josephson junctions and Josephson spin-valves containing strong Ni ferromagnets. We observe that in contrast to junctions, spin valves with the same geometry exhibit anomalous Ic(H) patterns with two peaks separated by a dip. We develop several techniques for in-situ characterization of micromagnetic states in our nano-devices, including magnetoresistance, absolute Josephson fluxometry and First-Order-Reversal-Curves analysis. They reveal a clear correlation of the dip in supercurrent with the antiparallel state of a spin-valve and the peaks with two noncollinear magnetic states, thus providing evidence for generation of spin-triplet superconductivity. A quantitative analysis brings us to a conclusion that the triplet current in out Ni-based spin-valves is approximately three times larger than the conventional singlet supercurrent.
description: 10 pages, 7 Figures
The Performance of U.S. Ethanol Futures Markets on the World Stage
Creators: name: Dahlgran, Roger A.
name: Souza, Waldemar Antônio Da Rocha De
name: Liu, Jingyu
name: Dahlgran, Roger A.
name: Souza, Waldemar Antônio Da Rocha De
name: Liu, Jingyu
Publisher: name: Unknown
Year: 2014
Subjects: Agricultural marketing

description: This study examines the feasibility of Brazilian ethanol dealers using the U.S. ethanol futures contract as a price-risk management vehicle. This application is appropriate given that the U.S. and Brazil are the world’s largest and second largest ethanol producers. This specific application is part of a larger consideration as to how U.S. futures markets perform for hedging international commodities. This study considers the reasons why U.S. ethanol contracts might and might not work as hedging vehicles for Brazilian ethanol inventories prior to conducting an empirical investigation. Our empirical hedge ratio model formulates three components of price risk for international users of U.S. futures markets. These are (1) the risk of commodity price change given the initial currency exchange rate, (2) the risk of exchange rate change, given the commodity’s initial price, and (3) the risk of covariation between the commodity’ price and the currency exchange rate. Based on these sources of price risk, the hedging portfolio consists of the U.S. ethanol futures contract and the Brazilian real futures contract. Our analysis reveals that the U.S. ethanol futures contract provides little price-risk protection for Brazilian ethanol holder while the Brazilian real futures contract offers some protection. In contract, we present results from crude oil futures markets where the U.S. crude oil futures contract gives the bulk of price risk protection and the currency futures contract provides much less. We conclude (1) that the ethanol findings are not universal and depend on the provisions of the U.S. ethanol futures with the U.S. contracts.
REVISITING THE CONCEPT OF LABOR: A MULTIDIMENSIONAL ANALYSIS
Creators: name: Master's student Sultamuratov Azamat Xojambergenovich, Linguistics English language
Publisher: name: Zenodo
Year: 2024

description: The concept of labor has been a fundamental aspect of human existence, shaping societies, economies, and individual lives throughout history. In this scientific article, we embark on a multidimensional exploration of the concept of labor, examining its historical evolution, societal implications, economic dimensions, and contemporary challenges. By delving into the various facets of labor, we aim to provide a comprehensive understanding of its intricate role in shaping the human experience.

Key Words: Labor, Workforce, Historical Evolution, Societal Implications, Economic Dimensions, Contemporary Challenges, Ethical Considerations, Global Perspectives, Technological Disruption
Redundancy and Robustness of the AS-level Internet topology and its models
Creators: name: Zhou, Shi
name: Mondragon, Raul J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.2.1 and C.2.5

description: A comparison between the topological properties of the measured Internet topology, at the autonomous system level (AS graph), and the equivalent graphs generated by two different power law topology generators is presented. Only one of the synthetic generators reproduces the tier connectivity of the AS graph.