cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bi-Hamiltonian partially integrable systems
Creators: name: Giachetta, G.
name: Mangiarotti, L.
name: Sardanashvily, G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37J35; 37J40; 70H06

description: Given a first order dynamical system possessing a commutative algebra of dynamical symmetries, we show that, under certain conditions, there exists a Poisson structure on an open neighbourhood of its regular (not necessarily compact) invariant manifold which makes this dynamical system into a partially integrable Hamiltonian system. This Poisson structure is by no means unique. Bi-Hamiltonian partially integrable systems are described in some detail. As an outcome, we state the conditions of quasi-periodic stability (the KAM theorem) for partially integrable Hamiltonian systems.
description: 18 pages
Novel modified nano-silica/polymer composite in water-based drilling fluids to plug shale pores
Creators: name: Liu, Fei
name: Zheng, Zheng
name: Wang, Xiuying
name: Li, Xiaqing
name: Zhang, Zhaoxiang
name: Wang, Xuewu
name: Dai, Xiaodong
name: Xin, Yanping
name: Liu, Qingxue
name: Yao, Hailei
name: Jiang, Shunyao
name: Liu, Chao
name: Li, Xingyan
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Space Science
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: The rapid growth of global energy demand necessitates high-performance water-based drilling fluids (WDFs) with excellent-plugging performance in the deep excavation of shale gas formation. Herein, we report an organic-inorganic nanocomposite (NS-D) as a plugging agent in WDFs to plug the nanoporous of shale and abate the hydration expansion of shale by integrating the advantages of inorganic and polymer nano plugging agents. The results of Fourier Transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (H-NMR) revealed that NS-D had been successfully obtained. Additionally, thermogravimetric analysis (TGA) showed that the thermal degradation temperature of NS-D occurred after 354 °C. The results of plugging theory analysis showed that the presence of rich amide groups and rigid material silica not only made NS-D adhere to shale efficiently by hydrogen bonding, but also firmly blocked the nanoporous of shale. The plugging ability was evaluated by pressure transfer test and nitrogen adsorption test. The results showed that WDFs with NS-D can significantly improve plugging efficiency and reduce fluid invasion. On the other hand, NS-D sharply abated the fluid loss of WDFs due to its positive plugging performance. The filtrate volume of WDFs decreased by 90.5% and 88.3%, respectively, before and after hot rolling at 150°C for 16 h. Moreover, the plugging performance of NS-D for WDFs was significantly better than polymer plugging agent crosslinked polyacrylamide microspheres and inorganic plugging agent silica nanoparticles. This work provides a novel strategy to plug the nanoporous of shale in the process of shale gas exploration.
A Multi-band Photometric Study of Tidal Debris in A Compact Group of Galaxies: Seyfert's Sextet
Creators: name: Nishiura, S.
name: Shioya, Y.
name: Murayama, T.
name: Sato, Y.
name: Nagao, T.
name: Taniguchi, Y.
name: Sanders, D. B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to investigate the properties of the prominent tidal debris feature extending to the northeast of the compact group of galaxies Seyfert's Sextet, we analyzed multi-band (U, B, V, VR, R, I, J, H and K') photometric imaging data and obtained the following results: 1) The radial surface brightness distribution of this tidal debris in Seyfert's Sextet (TDSS) in each band appears to be well approximated by an exponential profile. 2) The observed B-V color of TDSS is similar to those of dwarf elliptical galaxies in nearby clusters. 3) Comparing the spectral energy distribution (SED) of TDSS with theoretical photometric evolution models and with the SED of the stars in the outer part of HCG 79b, we find that its SED is comparable to that of a $\sim$ 10 Gyr-old stellar population with solar metallicity, similar to the stellar population in the outer part of HCG 79b. This suggests that TDSS consists of stars that may have been liberated from HCG 79b by strong galaxy interactions, not a pre-existing dwarf galaxy previously thought.
description: 9 pages, included 6 figures (5 PS files and 6 EPS files), emulateapj LaTeX, Publications of the Astronomical Society of Japan, 2002, 54, No.1, in press
MPEC 2025-D14 : 2025 DF
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DF

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Additional file 4: of Predicting Ailanthus altissima presence across a managed forest landscape in southeast Ohio
Creators: name: Iverson, Louis
name: Rebbeck, Joanne
name: Peters, Matthew
name: Hutchinson, Todd
name: Fox, Timothy
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Maxent model statistics showing variable importance, and an evaluation with inventories. These tables show the ranked importance of variables within the Maxent model, along with the evaluation of model outputs against inventory data for presence and absence of Ailanthus within the grid points. (DOCX 15 kb)
Comment on 'Another form of the Klein-Gordon equation'
Creators: name: Aste, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the alternative Klein-Gordon equation with positive definite probability density proposed in a letter by M.D. Kostin does not meet the requirements of relativistic (quantum) field theory and therefore does not allow for a meaningful physical interpretation.
description: Latex, 4 pages, to appear in Phys.Lett.A
Teleconnections between oceanic–atmospheric indices and drought over Iran using quantile regressions
Creators: name: Amini, Mohsen
name: Ghadami, Mohammad
name: Fathian, Farshad
name: Modarres, Reza
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: In this research, the Bayesian quantile regression model is applied to investigate the teleconnections between large oceanic–atmospheric indices and drought standardized precipitation index (SPI) in Iran. The 12-month SPI time series from 138 synoptic stations for 1952–2014 were selected as the drought index. Three oceanic–atmospheric indices, the North Atlantic Oscillation (NAO), the Southern Oscillation Index (SOI) and the Multivariate El Niño/Southern Oscillation Index (MEI), were selected as covariates. The results show that NAO has the weakest impact on drought in different quantiles and different regions in Iran. La Niña conditions amplified droughts through all SPI quantiles in western, Caspian Sea coastal regions and southern regions. The positive phase of MEI significantly modulates low SPI quantiles (i.e. drought conditions) throughout the Zagros region, Caspian Sea coastal regions and southern regions. The study shows that the effect of large oceanic–atmospheric indices have heterogeneous impacts on extreme dry and wet conditions.
Compartmentalisation of Hepatitis B virus X gene evolution in hepatocellular carcinoma microenvironment and the genotype-phenotype correlation of tumorigenicity in HBV-related patients with hepatocellular carcinoma
Creators: name: Fu, Ya
name: Fang, Fengling
name: Guo, Hongyan
name: Xiao, Xialin
name: Hu, Yuhai
name: Zeng, Yongbin
name: Chen, Tianbin
name: Wu, Songhang
name: Lin, Ni
name: Huang, Jinlan
name: Jiang, Ling
name: Ou, Qishui
name: Liu, Can
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Hepatitis B virus (HBV) exists as quasispecies (QS). However, the evolutionary characteristics of haplotypes of HBV X gene in the hepatocellular carcinoma (HCC) microenvironment remain unclear. Mutations across X gene are essential for the tumorigenicity of HBV X protein (HBx). However, the functional phenotypes of many mutant HBx remain unknown. This study aims to compare the characteristics of X gene evolution between tumour and non-tumour tissues in patients with HCC and investigate the tumorigenic phenotype of HBx harbouring mutation T81P/S101P/L123S. This study included 24 patients with HCC. Molecular cloning of X gene was performed to analyse characteristics of haplotypes in liver tissues. HCC cell lines stably expressing wild-type or mutant HBx and subcutaneous tumour xenograft mouse model were used to assess HBx-T81P/S101P/L123S tumorigenicity. The mean heterogeneity of HBV QS across X gene in tumour tissues was lower than that in non-tumour tissues. A location bias was observed in X gene clones with genotype C or D in tumour tissues compared to those with genotype B. Mutations in genotype-C or -D clones were mainly clustered in the dimerization region and aa110-aa140 within the transactivation region. A novel mutation combination at residues 81, 101 and 123 was identified in tumour tissues. Further, HBx-T81P/S101P/L123S promotes cell proliferation and increases genomic instability, which was mediated by MYC. This study elucidates the compartmentalised evolution patterns of HBV X gene between intra tumour and non-tumour tissues in patients with HCC and provides a new mechanism underlying HBV-driven hepatocarcinogenesis, suggesting a potential viral marker for monitoring HCC.
Negative Excess Shot Noise by Anyon Braiding
Creators: name: Lee, Byeongmok
name: Han, Cheolhee
name: Sim, H. -S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Anyonic fractional charges $e^*$ have been detected by autocorrelation shot noise at a quantum point contact (QPC) between two fractional quantum Hall edges. We find that the autocorrelation noise can also show a fingerprint of Abelian anyonic fractional statistics. We predict the noise of electrical tunneling current $I$ at the QPC of the fractional-charge detection setup, when anyons are dilutely injected, from an additional edge biased by a voltage, to the setup in equilibrium. At large voltages, the nonequilibrium noise is {\it reduced} below the thermal equilibrium noise by the value $2 e^* I$. This negative excess noise is opposite to the positive excess noise $2e^* I$ of the conventional fractional-charge detection and also to usual positive autocorrelation noises of electrical currents. This is a signature of the Abelian fractional statistics, resulting from the effective braiding of an anyon thermally excited at the QPC around another anyon injected from the additional edge.
description: 13 pages, 5 figures
Analysing the robustness of spice chains in Nepal from a smallholder perspective
Creators: name: Salil, Bhattarai
name: Michael C., Lyne
name: Sandra K., Martin
name: Salil, Bhattarai
name: Michael C., Lyne
name: Sandra K., Martin
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Farm Management
subject: Large cardamom
subject: ginger
subject: transaction cost
subject: collective marketing
subject: case study

description: This study assesses the performance of supply chains for ginger and large cardamom, two major export crops produced in Nepal. In particular, it aims to identify factors that constrain marketing choices available to smallholders, so limiting the chain’s robustness from their perspective. A qualitative case study method was used to gather and analyse data on farmer-buyer dyads in the ginger and cardamom chains. These case studies were informed by a conceptual model based on Transaction Cost Economics. The analysis included a cross-case comparison to identify the effects of external attributes on the modes of engagement available to smallholders. Informal market trading was the only mode of smallholder engagement observed in both chains. However, there was evidence that smallholders had previously engaged in relational contracts in the ginger chain, and in ‘captive’ relational contracts in the cardamom chain. The analysis suggests that access to other modes of engagement is constrained mainly by under-investment in value-adding assets. Traditional cooperatives can and do help to resolve problems of asymmetric information and high unit transaction costs, but more innovative cooperative models are required to encourage the investment needed to finance value-adding assets and activities.
Bell-inequality violation with "thermal" radiation
Creators: name: Filip, Radim
name: Dusek, Miloslav
name: Fiurasek, Jaromir
name: Mista, Ladislav
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The model of a quantum-optical device for a conditional preparation of entangled states from input mixed states is presented. It is demonstrated that even thermal or pseudo-thermal radiation can be entangled in such a way, that Bell-inequalities are violated.
Parinesa gnoma Escalona & Slipinski 2012, n. comb.
Creators: name: Escalona, H. E.
name: Slipinski, A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Parinesa
Parinesa gnoma

description: Parinesa gnoma (Gordon, 1977) n. comb.
(Fig. 148)
 Glomerella gnoma Gordon, 1977: 219.
 Diagnosis. This apparently wingless species can be distinguished by its strongly convex minute body (BL: 1.1 mm. BW: 0.8 mm), eyes apparently divided by ocular canthus, surfaces of head and pronotum microsculptured with fine sparse setae, elytra mostly smooth. Male genitalia not well known as the parameres and the apex of penis have been lost before the original description (in Gordon (1977) Figs 116, 117); the shape of the penis guide differs notably from any species known to us.
 Distribution. Colombia, Magdalena, Rio Frío (Fig. 148).
 Specimen examined.
 Holotype (MCZ).
 Notes. We have examined the holotype at MCZ, but the diagnosis above is mostly based on the original description and pictures of the holotypes from the MCZ Type Database (http://insects.oeb.harvard.edu/mcz/ index.htm, accessed 14 April 2011).
description: Published as part of Escalona, H. E. & Slipinski, A., 2012, Revision of the Neotropical ladybird genus Parinesa Gordon (Coleoptera, Coccinellidae), pp. 29-53 in Zootaxa 3198 (1) on page 44
MOESM2 of A comparative assessment of adult mosquito trapping methods to estimate spatial patterns of abundance and community composition in southern Africa
Creators: name: Gorsich, Erin
name: Beechler, Brianna
name: Bodegom, Peter
name: Govender, Danny
name: Milehna Guarido
name: Marietjie Venter
name: Schrama, Maarten
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 2: Text S1. Additional methods and results for the regression analysis. Table S4. Model parameters, estimates, standard error (SE) and hypothesis tests for the Poisson regression analyses in Fig.Â 3.
MOESM2 of Exploring PEGylated and immobilized laccases for catechol polymerization
Creators: name: Su, Jing
name: Noro, Jennifer
name: Fu, Jiajia
name: Wang, Qiang
name: Silva, Carla
name: Cavaco-Paulo, Artur
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology

description: Additional file 2: Figure S1. 1H NMR of powder fraction polymerized by a) free/native laccase; b) free/PEGylated; c) immobilized/PEGylated laccase and d) native laccase immobilized onto PEG-activated resin, after washings with water and with methanol (in DMSO-d6).
A ANTA I DO REGO DA MURTA - DESCRIÇÃO SUMÁRIA DOS TRABALHOS EFECTUADOS EM 2003
Creators: name: Figueiredo, Alexandra
Publisher: name: Zenodo
Year: 2004
Subjects: subject: Archaeology
subject: Archaeology

description:  Figueiredo, A. (2004) – A ANTA I DO REGO DA MURTA - DESCRIÇÃO SUMÁRIA DOS TRABALHOS EFECTUADOS EM 2003, Techne, vol 9, Tomar,  Arqueojovem, pp. 115-126
Rural development NGOs and service delivery to the very poor: An empirical analysis of a training center in rural Cameroon
Creators: name: Balgah Roland, Azibo
name: Emmanuel Yenshu, Vubo
name: Innocent Ndoh, Mbue
name: Jude Ndzifon, Kimengsi
name: Balgah Roland, Azibo
name: Emmanuel Yenshu, Vubo
name: Innocent Ndoh, Mbue
name: Jude Ndzifon, Kimengsi
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Development NGOs
subject: service delivery
subject: the very poor
subject: rural Cameroon

description: The role of development nongovernmental organizations (DNGOs) in driving change, servicing the very poor and reducing poverty especially in rural areas in developing countries has been generally affirmed in the rural economics literature. This romantic image accounts to a large extent for the exponential numeric growth observed in the sector, and for burgeoning research on the subject by rural development economists. However, not enough empirical evidence exists on the extent to which such organizations actually service the very poor. This paper uses the example of a rural development NGO in the administrative unit of North West Cameroon to assess the extent to which the very poor actually benefit from DNGO services. A relative poverty approach is applied, allowing for the use of individual indicators and computed poverty indices to compare beneficiaries and non-beneficiaries of the DNGO service delivery based on cross sectional data. The results indicate that the DNGO serviced mainly poor communities. However, a disproportionately higher share of the benefits (60%) went to groups that were already well off before service delivery, than to the very poor. The paper then emphasizes the need for DNGOs to carry out poverty analysis prior to service delivery, as a prerequisite to effectively reach out to the very poor, particularly in rural areas in Cameroon.
Lewinskya affinis F. Lara, Garilleti & Goffinet
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Orthotrichales
Orthotrichaceae
Lewinskya
Lewinskya affinis

description: Lewinskya affinis (Schrad. ex Brid.) F.Lara, Garilleti & Goffinet
Orthotrichum affine Schrad. ex Brid.
Nomenclature follows Lara et al. (2016).
RECORDS. — Bescherelle (1882): Petit Atlas. Brongniart (1882): Blidah. Corbière (1889), Jelenc (1955a): forêt des Beni-Salah, 1500 m. Corbière (1904, 1905), Jelenc (1955a, 1966, 1967): Environs de Constantine, djebel Ouasch, 1000-1100 m. Camus (1906), Jelenc (1955a): Oran. Jelenc (1953, 1967): Massif de l’Ouarsenis, cédraie de Téniet el Had, 1500 m. Jelenc (1955a): Kabylie du Djurdjura, Aït Idjer; Kabylie du Djurdjura, Akfadou; Kabylie du Djurdjura, Fort National, 1000 m; Monts de Batna, djebel bou Arif; Monts de Constantine. Jelenc (1955a), Ahayoun et al. (2007): Atlas de Blida. Jelenc (1956, 1967): Massif du Tessala, pic Tessala, 1000 m. Jelenc (1967): Kabylie du Djurdjura, Aizer au pic des Cèdres, 1880 m; Massif de l’Ouarsenis, pic Sidi Abdelkader, 1500 m. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Mazari & Boulaacheb (2023): Setif, Megriss Mountain. Frequent.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 85, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Simulating the interactions between the water and the socio-economic system in a stressed endorheic basin
Creators: name: Sajad Enteshari
name: Safavi, Hamid R.
name: Van Der Zaag, Pieter
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Science Policy

description: The endorheic basin of Zayandehrud in Iran suffers from environmental problems, social tensions, and economic instability. Lack of understanding how the water system and the socio-economic system interact may explain these challenges. A system dynamics model, being a holistic simulation tool, was developed for the Zayandehrud basin and used to evaluate several policy scenarios. The indices of employment, gross regional product, the volume of groundwater and surface water stored, flow into the basin’s end lake, and the water flow in the river were used to evaluate the scenarios. The findings demonstrate that focusing on supply-based activities or water demand management cannot solely improve the condition of the Zayandehrud basin. It is required to reconsider the development policies of the region in a broader context. Reducing the irrigated area by 15% and developing new industries up to a certain limit may make the combined water and socio-economic system sustainable.
MOESM1 of A comparative assessment of adult mosquito trapping methods to estimate spatial patterns of abundance and community composition in southern Africa
Creators: name: Gorsich, Erin
name: Beechler, Brianna
name: Bodegom, Peter
name: Govender, Danny
name: Milehna Guarido
name: Marietjie Venter
name: Schrama, Maarten
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Table S1. The number of females collected by trap and site. The mosquito column (mosq) indicates the number of females collected; the traps column of trapping nights represented. Table S2. The number of females collected of each species by region of the park. Table S3. Summary of weather conditions sampled within each region of the park. Numbers are displayed as median and range in parentheses.
Recovery of continuous wave squeezing at low frequencies
Creators: name: Bowen, W. P.
name: Schnabel, R.
name: Treps, N.
name: Bachor, H. A.
name: Lam, P. K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and demonstrate a system that produces squeezed vacuum using a pair of optical parametric amplifiers. This scheme allows the production of phase sidebands on the squeezed vacuum which facilitate phase locking in downstream applications. We observe strong, stably locked, continuous wave vacuum squeezing at frequencies as low as 220 kHz. We propose an alternative resonator configuration to overcome low frequency squeezing degradation caused by the optical parametric amplifiers.
description: 9 pages, 4 figures
Engineered thermalization and cooling of quantum many-body systems
Creators: name: Metcalf, Mekena
name: Moussa, Jonathan E.
name: de Jong, Wibe A.
name: Sarovar, Mohan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We develop a scheme for engineering genuine thermal states in analog quantum simulation platforms by coupling local degrees of freedom to driven, dissipative ancilla pseudospins. We demonstrate the scheme in a many-body quantum spin lattice simulation setting. A Born-Markov master equation describing the dynamics of the many-body system is developed, and we show that if the ancilla energies are periodically modulated, with a carefully chosen hierarchy of timescales, one can effectively thermalize the many-body system. Through analysis of the time-dependent dynamical generator, we determine the conditions under which the true thermal state is an approximate dynamical fixed point for general system Hamiltonians. Finally, we evaluate the thermalization protocol through numerical simulation and discuss prospects for implementation on current quantum simulation hardware.
description: 8 pages + Appendix. Published version
Directional Dark Matter Detection in Anisotropic Dirac Materials
Creators: name: Coskuner, Ahmet
name: Mitridate, Andrea
name: Olivares, Andres
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dirac materials, because of their small ${\cal O}(\mbox{meV})$ band gap, are a promising target for dark photon-mediated scattering and absorption of light dark matter. In this paper, we characterize the daily modulation rate of dark matter interacting with a Dirac material due to anisotropies in their crystal structure. We show that daily modulation is an ${\cal O}(1)$ fraction of the total rate for dark matter scattering in the Dirac material ZrTe$_5$. When present, the modulation is dominated by the orientation of the material's dielectric tensor with respect to the dark matter wind, and is maximized when the crystal is oriented such that the dark matter wind is completely aligned with the largest and smallest components of the dielectric tensor at two different times of the day. Because of the large modulation, any putative dark matter scattering signal could be rapidly verified or ruled out by changing the orientation of the crystal with respect to the wind and observing how the daily modulation pattern changes.
description: 22 pages, 6 figures, 1 table. v2: fixed error in the derivation of the dielectric tensor. Absorption rate modulation, and reach plots updated accordingly
Parinesa lemae Escalona & Slipinski 2012, sp. nov.
Creators: name: Escalona, H. E.
name: Slipinski, A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Parinesa
Parinesa lemae

description: Parinesa lemae sp. nov.
(Figs 13, 107–119, 148)
 HOLOTYPE: Venezuela, Bolívar, El Dorado – Sta. Elena, km. 143, 1200 m, 18–x–1972, J. & B. Bechyne leg., ♂ MIZA. PARATYPES: 5 specimens. Same data as holotype, 2 specimens NMNH. Venezuela: Bolívar: km. 121, 1100 m, 26–x–1972, J. & B. Bechyne leg., 1 specimen, MIZA; km. 168, 1200 m, 19–x–1972, J. & B. Bechyne leg., 1 specimen MIZA. Salto El Danto, vía Gran Sabana, 900 m, 11–ix–1989, C. J. Rosales col., 1 specimen MIZA.
 Diagnosis. P. lemae is the only known Parinesa species with light brown or yellow sides of pronotum and head. Additional diagnostic characters are winged, eyes divided by ocular canthus, clypeus truncate (Fig. 107), anterior lobe of prosternum short and subtruncate (Fig. 112), protibia with external border broadly rounded, and metaventrite well developed (Fig. 113).
 Description. Measurements (mm, except ratios): BL: 1.5–1.6. BW: 1.2–1.3. PL: 0.2; PW: 0.8; PL/PW: 0.3; EL: 1.1–1.2; EL/W: 0.8–1.0; CO: 0.6. Body rounded, convex, winged; color brown with light brown to yellow areas on pronotal sides and head; ventral surface yellowish. Microsculpture finer on head than on pronotum; elytra (Fig. 13) polished with fine dense punctures.
 Head (Fig. 107) slightly convex. Clypeus apex (Fig. 107) truncate. Eyes divided by ocular canthus. Mentum with apical borders subtruncated (Fig. 108). Maxilla as in Fig. 109. Mandible as in Fig. 110. Antennal club with four terminal enlarged segments (Fig. 111).
Anterior lobe of prosternum (Fig. 112) short and subtruncate, microsculptured and irregularly punctate; prosternal process slightly sulcate. Mesoventral process (Fig. 113) broad, flat and microsculptured. Metaventrite (Fig. 113) well developed, microsculptured, with fine sparse punctures, without discrimen. Elytra (Fig. 13) with fine sparse punctures, without lateral stria. Abdominal process broad (Fig. 114), ventrite I microsculptured with fine sparse punctures, apex of ventrite V crenulate (Fig. 115). Protibia with external border broadly rounded.
Male genitalia (Figs 116–119): penis curved (Fig. 118); penis guide broader at base in lateral view (Fig. 116) and parallel in ventral view (Fig. 117). Parameres (Fig. 116) rounded apically, slightly shorter than penis guide.
 Etymology. Named after the type locality, the impressive Sierra de Lema in the Guyana shield.
 Distribution. Known only from a cloud forest in Sierra de Lema, Bolivar St., Venezuela (Fig. 148).
description: Published as part of Escalona, H. E. & Slipinski, A., 2012, Revision of the Neotropical ladybird genus Parinesa Gordon (Coleoptera, Coccinellidae), pp. 29-53 in Zootaxa 3198 (1) on page 46
Analysis of crop enterprise combination among small holder farmers in delta north agricultural zone, delta state, Nigeria
Creators: name: Kaine, A.I.N.
name: Kaine, A.I.N.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Consumer/Household Economics
subject: Farm Management
subject: Enterprise combination
subject: output
subject: farm size
subject: household
subject: cost and small holder farmer

description: This study on analysis of crop enterprise combination among small holder farmers was conducted in Delta North Agricultural Zone, Delta State, Nigeria. The study covered fifty farmers randomly selected from two villages randomly selected from five Local Government Areas in the study area. Frequencies, means, percentages and Net Profit Margin analysis was employed in analyzing the data obtained. Net farm income for two years was estimated and discussed. The result gave #277,269.47 and #214,020.30 for the year 2012 and 2013 respectively. The result showed that there was a sharp decline in output and income in the year 2013. The result also showed a drastic decline in both quantity and price of cassava, melon and tomato produced in the year 2013. Okro enterprise on the other hand showed a positive result at the end of 2013 farming year. The decline in output noticed among the various enterprise combinations may be attributed to some uncontrollable variables.
The Effect of the Hall Term on the Nonlinear Evolution of the Magnetorotational Instability: I. Local Axisymmetric Simulations
Creators: name: Sano, Takayoshi
name: Stone, James M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The effect of the Hall term on the evolution of the magnetorotational instability (MRI) in weakly ionized accretion disks is investigated using local axisymmetric simulations. First, we show that the Hall term has important effects on the MRI when the temperature and density in the disk is below a few thousand K and between 10^13 and 10^18 cm^{-3} respectively. Such conditions can occur in the quiescent phase of dwarf nova disks, or in the inner part (inside 10 - 100 AU) of protoplanetary disks. When the Hall term is important, the properties of the MRI are dependent on the direction of the magnetic field with respect to the angular velocity vector Ω. If the disk is threaded by a uniform vertical field oriented in the same sense as Ω, the axisymmetric evolution of the MRI is an exponentially growing two-channel flow without saturation. When the field is oppositely directed to Ω, however, small scale fluctuations prevent the nonlinear growth of the channel flow and the MRI evolves into MHD turbulence. These results are anticipated from the characteristics of the linear dispersion relation. In axisymmetry on a field with zero-net flux, the evolution of the MRI is independent of the size of the Hall term relative to the inductive term. The evolution in this case is determined mostly by the effect of ohmic dissipation.
description: 31 pages, 3 tables, 12 figures, accepted for publication in ApJ, postscript version also available from http://www.astro.umd.edu/~sano/publications/
Mapping runoff generating areas using AGNPS-VSA model
Creators: name: Kishor Panjabi
name: Rudra, Ramesh
name: Goel, Pradeep
name: Daggupati, Prasad
name: Shrestha, Narayan Kumar
name: Rituraj Shukla
name: Binbin Zhang
name: Allataifeh, Nabil
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: In humid regions, surface runoff is often generated by saturation-excess runoff mechanisms from relatively small variable source areas (VSAs). However, the majority of the current hydrologic models are based on infiltration-excess mechanisms. In this study, the AGricultural Non-Point Source Pollution (AGNPS) model was used to integrate the VSA concept using topographic wetness index (TWI). Both the original and AGNPS-VSA models were evaluated for a small agricultural field in Ontario, Canada. The results indicate that the AGNPS-VSA model performed better than original model. The AGNPS-VSA model predicted that only the saturated portion of the field with higher TWI values produced runoff, whereas the original AGNPS model showed uniform hydrologic response from the entire field. The results of this study are important for accurately mapping the locations of VSAs. This new model could be a powerful tool in identifying critical source areas for applying targeted best management practices to minimize pollutant loads to receiving waters.
Monte-Carlo Simulation of Domain-Wall Network in Two-dimensional Extended Supersymmetric Theory
Creators: name: Motoyui, Nobuyuki
name: Tominaga, Shogo
name: Yamada, Mitsuru
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We will show that 2-dimensional N=2-extended supersymmetric theory can have solitonic solution using the Hamilton-Jacobi method of classical mechanics. Then it is shown that the Bogomol'nyi mass bound is saturated by these solutions and triangular mass inequality is satisfied. At the end, we will mention domain-wall structure in 3-dimensional spacetime.
description: Talk given at International Symposium on Non-Equilibrium and Nonlinear Dynamics in Nuclear and Other Finite Systems held at May 21-25, 2001 in Beijing. 7 pages, 4 figures
Tailoring teleportation to the quantum alphabet
Creators: name: Cochrane, P. T.
name: Ralph, T. C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a refinement of the standard continuous variable teleportation measurement and displacement strategies. This refinement makes use of prior knowledge about the target state and the partial information carried by the classical channel when entanglement is non-maximal. This gives an improvement in the output quality of the protocol. The strategies we introduce could be used in current continuous variable teleportation experiments.
description: 16 pages, 6 figures, RevTeX, made changes as recommended by referee, other minor textual corrections, resubmitted to Phys. Rev. A
Harmonic Standing-Wave Excitations of Simply-Supported Isotropic Solid Elastic Circular Cylinders: Exact 3D Linear Elastodynamic Response
Creators: name: Sakhr, Jamal
name: Chronik, Blaine A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The vibration of a solid elastic cylinder is one of the classical applied problems of elastodynamics. Many fundamental forced-vibration problems involving solid elastic cylinders have not yet been studied or solved using the full three-dimensional (3D) theory of linear elasticity. One such problem is the steady-state forced-vibration response of a simply-supported isotropic solid elastic circular cylinder subjected to two-dimensional harmonic standing-wave excitations on its curved surface. In this paper, we exploit certain previously-obtained particular solutions to the Navier-Lamé equation of motion and exact matrix algebra to construct an exact closed-form 3D elastodynamic solution to the problem. The method of solution is direct and demonstrates a general approach that can be applied to solve other similar forced-vibration problems involving elastic cylinders. Two complete analytical solutions are in fact constructed corresponding to two different but closely-related families of harmonic standing-wave excitations. The second of these analytical solutions is evaluated numerically in order to study the steady-state frequency response in some example excitation cases. In each case, the solution generates a series of resonances that are in correspondence with a subset of the natural frequencies of the simply-supported cylinder. The considered problem is of general interest both as an exactly-solvable 3D elastodynamics problem and as a benchmark forced-vibration problem involving a solid elastic cylinder.
Logic: A Misleading Concept. A Contradiction Study toward Agent's Logic
Creators: name: Liu, Feng
name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 03B60, 03B42

description: The paper presents a fresh new comprehensive ideology on Neutrosophic Logic based on contradiction study. It does a survey on Chinese philosophy. The paper aims to solve the chaos of logic and exhibit the potential power of neutrosophy: a new branch of scientific philosophy.
description: 10 pages, 6 figure. "Proceedings of the First International Conference on Neutrosophy, Neutrosophic Logic, Neutrosophic Set, Neutrosophic Probability and Statistics", Florentin Smarandache editor, Xiquan, Phoenix, ISBN: 1-931233-55-1, 147 p., 2002
Additional file 2: of Predicting Ailanthus altissima presence across a managed forest landscape in southeast Ohio
Creators: name: Iverson, Louis
name: Rebbeck, Joanne
name: Peters, Matthew
name: Hutchinson, Todd
name: Fox, Timothy
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Rank order, by Mean Decrease in Gini, of variables in RF model. A listing of variables used in the Random Forest model, presented in decreasing order of importance in the model. (DOCX 17 kb)
AUTOMATED INFORMATION SYSTEMS AND TECHNOLOGIES IN ACCOUNTING
Creators: name: Ibodullaev, Dostonbek
Publisher: name: Zenodo
Year: 2024

description: The accounting automation system is a structural, relative, independent part of the economic information processing automated system (IAIAT) and includes a specific management function. In practice, there are various components of subsystems of work; most often among them are "Process management", "Accounting", "Planning", "Demand study and forecasting" systems. It is necessary to increase the scientific basis of decisions.
Parinesa minuta Escalona & Slipinski 2012, sp. nov.
Creators: name: Escalona, H. E.
name: Slipinski, A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Parinesa
Parinesa minuta

description: Parinesa minuta sp. nov.
(Figs 14–16, 120–133, 148)
 HOLOTYPE: Panamá, Canal Zone, 100 m, 5.0 mi. NW Gamboa, 09° 10' N 79° 45' W, 23–24–x–1975; Canopy fogging experiment in Luehea seemannii Pyrethrin fog; sample 7B 24–x–1975, ♂ NMNH. PARATYPES: same data as holotype, 2 specimens NMNH.
 Diagnosis. This species can be distinguished by its small size (1.1 mm), elytral disc bearing two rows of punctures (Fig. 16), winged, eyes partially divided, apex of clypeus slightly emarginate (Fig. 120), well developed anterior lobe of prosternum (Fig. 125) and flattened protibia (Fig. 127) with angulate external border.
 Description. Measurements (mm, except ratios): BL: 1.1. BW: 0.9. PL: 0.2; PW: 0.6; PL/PW: 0.3; EL: 0.8; EL/W: 0.9; CO: 0.6. Body rounded (Fig. 16) and convex (Fig. 14); winged. Color dark brown with clypeus and sides of elytra slightly lighter; ventral surface brown. Head with fine sparse setae, pronotum and elytra with minute setae on lateral sides. Head and pronotum finely microsculptured and punctate, punctures on pronotum smaller and denser than those on head; elytral surfaces polished, finely punctate, punctures denser and coarser laterally near base.
 Head (Fig. 120) slightly convex. Clypeus well produced, apex slightly emarginate (Fig. 120). Eyes partially divided by ocular canthus. Mentum (Fig. 122) with apical borders rounded. Maxilla as in Figs 121, 123. Antennal club (Fig. 124) with the three terminal segments enlarged.
Anterior lobe of prosternum (Fig. 125) broadly rounded with coarse setiferous punctures; prosternal process sulcate. Mesoventral process slightly convex with coarse punctures. Metaventrite with coarse punctures, denser laterally. Elytra with incomplete lateral stria, disc (Fig. 16) with two distinctive and convergent rows of punctures. Pygidium ♂, as in Fig. 129. Abdominal process broad (Fig. 126) with coarse but sparse punctures. Protibia (Fig. 127) flattened with angulate external border. Mesotibia as in Fig. 128.
Male genitalia (Figs 130–133): penis curved (Fig. 132); penis guide (Fig. 131) narrowing in apical fourth. Parameres (Fig. 130) narrow to apex, slightly shorter than penis guide.
 Etymology. Derived from the Latin minutus, meaning small.
 Distribution. Known only from the type locality in Panama (Fig. 148).
description: Published as part of Escalona, H. E. & Slipinski, A., 2012, Revision of the Neotropical ladybird genus Parinesa Gordon (Coleoptera, Coccinellidae), pp. 29-53 in Zootaxa 3198 (1) on page 49
The total factor productivity in strategic food crops industry of Malaysia
Creators: name: Kamarudin, Othman
name: Amir Hussin, Baharuddin
name: Kamarudin, Othman
name: Amir Hussin, Baharuddin
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Health Economics and Policy
subject: Total factor productivity
subject: paddy
subject: MADA
subject: self-sufficiency level (SSL)

description: Total Factor Productivity (TFP) may indicate the long-term economic growth of a country. In addition, it is also a comprehensive measure of the level of productivity in the economy. Therefore, these study attempts to investigate the TFP for Malaysia paddy sub-sector. The study was conducted in four Muda Agricultural Development Authorities (MADA) regions and employed a seasonal the series of data from 1996 to 2011. Result has found that the actual TFP growth is below than 5 percent for each season. The study also found that the actual TFP trend has been volatile over time. Study has further investigated the factors affecting TFP growth in the Malaysian paddy industry for the entire period. Seven selected factors are found to be associated with striking TFP growth. The result has discovered that all the selected factors are important in influencing the paddy production in Malaysia. However, the magnitude is different for each region.
Research on the implementation of interactive 3D models in the field of urban and spatial planning (Průzkum implementace interaktivních 3Dmodelů do oblasti územního aprostorového plánování)
Creators: name: Plačková, Barbora
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 440612
subject: Urban geography

description: The document contains the full wording of an online questionnaire in the Czech language, which was used for testing the usage of simple and photorealistic 3D gevisualizations in urban planning.
The Canada-UK Deep Submillimeter Survey VI: The 3-Hour Field
Creators: name: Webb, T. M. A.
name: Eales, S. A.
name: Lilly, S. J.
name: Clements, D. L.
name: Dunne, L.
name: Gear, W. K.
name: Flores, H.
name: Yun, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the complete submillimeter data for the Canada-UK Deep Submillimeter Survey (CUDSS) 3-hour field. The obeservations were taken with the Submillimeter Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope on Mauna Kea. The 3-hour field is one of two main fields in our survey and covers 60 square arcminutes to a 3-sigma depth of 3 mJy. In this field we have detected 27 sources above 3-sigma and 15 above 3.5-sigma. We assume the source counts follow the form $N(S) {\propto} S^{-α}$ and measure $α$ = 3.3$^{+1.4}_{-1.0}$. This is in good agreement with previous studies and further supports our claim (Eales et al., 2000) that SCUBA sources brighter than 3 mJy produce ~20% of the 850$μ$m background energy. Using preliminary ISO 15 $μ$m maps and VLA 1.4 GHz data we have identified counterparts for six objects and have marginal detections at 450$μ$m for two additional sources. With this information we estimate a median redshift for the sample of 2.0$\pm$0.5, with $\sim$10% lying at $z 3 mJy sources using the source catalogues from the CUDSS two main fields, the 3-hour and 14-hour fields, and find a marginal detection of clustering, primarily from the 14-hour field, of $ω(θ)=4.4\pm2.9 θ^{-0.8}$. This is consistent with clustering at least as strong as that seen for the Lyman-break galaxy population and the Extremely Red Objects. Since SCUBA sources are selected over a broader range in redshifts than these two populations the strength of the true spatial clustering is expected to be correspondingly stronger.
description: 17 pages, 8 figures, submitted to ApJ