cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparison of Forest Owner Typologies Based on Latent Class Analysis and Cluster Analysis
Creators: name: Meilby, Henrik
name: Boon, Tove Enggrob
name: Meilby, Henrik
name: Boon, Tove Enggrob
Publisher: name: Unknown
Year: 2004
Subjects: subject: Agribusiness
subject: Land Economics/Use
subject: private forest owner
subject: typology
subject: latent class analysis
subject: cluster analysis

description: Survey data on forest owner attitudes can be used to divide forest owners into types, each type forming a group of similar owners with attitudes differing markedly from those observed for other types. Such an empirical typology can be developed using a range of different statistical methods, including cluster analyses and latent class analysis. In this paper we examine the sensitivity of a forest owner typology to the choice of statistical model. Based on a latent class analysis of data from a survey among private forest owners in Denmark, we identify different types of owners. The resulting typology is compared with previous results based on k-means clustering of the same data. It emerges that the two statistical methods lead to almost identical forest owner types, but also that the final typology is influences by various choices made on the way through the analysis. The most significant of these choices is the number of owner types.
The Energy Dependence of the Saturation Momentum from RG Improved BFKL Evolution
Creators: name: Triantafyllopoulos, D. N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the energy dependence of the saturation momentum in the context of the collinearly improved Leading and Next to Leading BFKL evolution, and in the presence of saturation boundaries. We find that the logarithmic derivative of the saturation momentum is varying very slowly with Bjorken-x, and its value is in agreement with the Golec-Biernat and Wusthoff model in the relevant x region. The scaling form of the amplitude for dipole-dipole or dipole-hadron scattering in the perturbative side of the boundary is given.
description: 32 pages
Optimizing recruitment in an online environmental PPGIS—is it worth the time and costs?
Creators: name: Salminen, Emma Annika
name: Hausner, Vera Helene
name: Murguzur, Francisco Javier Ancin
name: Engen, Sigrid
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Public participation GIS surveys use both random and volunteer sampling to recruit people to participate in a self-administered mapping exercise online. In random sampling designs, the participation rate is known to be relatively low and biased to specific segments (e.g. middle-aged, educated men). Volunteer sampling provides the opportunity to reach a large crowd at reasonable costs but generally suffers from unknown sampling biases and lower data quality. The low participation rates and the quality of mapping question the validity and generalizability of the results, limiting their use as a democratic tool for enhancing participation in spatial planning. We therefore asked: How can we increase participation in online environmental PPGIS surveys? Is it worth the time and costs? We reviewed environmentally related online PPGIS surveys (n = 26) and analyzed the sampling biases and recruitment strategies utilized in a large-scale online PPGIS platform in coastal areas of northern Norway via both random (16,978 invited participants) and volunteer sampling. We found that the time, effort, and costs required to increase participation rates yielded meager results. We discuss the time and cost efficiency of different recruitment methods and the implications of participation levels despite the recruitment methods used.
Valency of rare earths in RIn3 and RSn3: Ab initio analysis of electric-field gradients
Creators: name: Asadabadi, S. Jalali
name: Cottenier, S.
name: Akbarzadeh, H.
name: Saki, R.
name: Rots, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In RIn3 and RSn3 the rare earth (R) is trivalent, except for Eu and Yb, which are divalent. This was experimentally determined in 1977 by perturbed angular correlation measurements of the electric-field gradient on a 111Cd impurity. At that time, the data were interpreted using a point charge model, which is now known to be unphysical and unreliable. This makes the valency determination potentially questionable. We revisit these data, and analyze them using ab initio calculations of the electric-field gradient. From these calculations, the physical mechanism that is responsible for the influence of the valency on the electric-field gradient is derived. A generally applicable scheme to interpret electric-field gradients is used, which in a transparent way correlates the size of the field gradient with chemical properties of the system.
description: 10 pages
Additional file 6 of H3K27ac mediated SS18/BAFs relocation regulates JUN induced pluripotent-somatic transition
Creators: name: Lin, Runxia
name: Zhai, Ziwei
name: Kuang, Junqi
name: Wu, Chuman
name: Yao, Yuxiang
name: Shi, Ruona
name: He, Jiangping
name: Xu, Shuyang
name: Li, Pengli
name: Fan, Yixin
name: Li, Wei
name: Wu, Zichao
name: Li, Xiaoxi
name: Ming, Jin
name: Guo, Jing
name: Wang, Bo
name: Li, Dongwei
name: Cao, Shangtao
name: Zhang, Xiaofei
name: Li, Yi
name: Pei, Duanqing
name: Liu, Jing
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6. H3K27ac co-occupancy with SS18 during JUN induced PST.
Observing the dynamic community structure of urban travel networks based on navigation data
Creators: name: Hong, Wuyang
name: Li, Jiewei
name: He, Biao
name: Guo, Renzhong
name: Li, Xiaoming
name: Chen, Yebin
name: Wang, Zhaoxi
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Physical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Dynamic community division is crucial for comprehending the interactive structure and mechanism between residents and space. Currently, there is insufficient research on dynamic community changes in travel networks regarding travel distance. This study utilizes residents’ travel trajectories to construct a multi-layer network based on travel purposes. The study establishes methods for identifying travel network communities and analyzing community evolution influence. Dynamic characteristics of travel network communities at different distances are extracted. Results show that within 3–7 km travel distance, different travel network communities exhibit continuous spatial aggregation, whereas beyond 11 km, heterogeneity is observed. Moreover, communities within 3-7 km experience drastic dynamic evolution, whereas beyond 7 km, they tend to stabilize, forming a large-scale and fixed travel mode. This study enriches the dynamic interaction research of functional space from the perspective of distance, and the experimental results provide an effective reference for urban planning and management.
Finite-Dimensional Irreducible Modules of the Racah Algebra at Characteristic Zero
Creators: name: Huang, Hau-Wen
name: Bockting-Conrad, Sarah
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 81R10, 16S37

description: Assume that ${\mathbb F}$ is an algebraically closed field with characteristic zero. The Racah algebra $\Re$ is the unital associative ${\mathbb F}$-algebra defined by generators and relations in the following way. The generators are $A$, $B$, $C$, $D$ and the relations assert that $[A,B]=[B,C]=[C,A]=2D$ and that each of $[A,D]+AC-BA$, $[B,D]+BA-CB$, $[C,D]+CB-AC$ is central in $\Re$. In this paper we discuss the finite-dimensional irreducible $\Re$-modules in detail and classify them up to isomorphism. To do this, we apply an infinite-dimensional $\Re$-module and its universal property. We additionally give the necessary and sufficient conditions for $A$, $B$, $C$ to be diagonalizable on finite-dimensional irreducible $\Re$-modules.
A Green Leaf!? Consumers’ Knowledge and Perception of the Mandatory EU Organic Logo
Creators: name: Zander, Katrin
name: Zander, Katrin
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Organic farming
subject: labelling
subject: trust
subject: product quality

description: With the introduction of the mandatory EU organic logo for all organic food products in 2010 the European Commission aimed at supporting a sustainable development and the effective functioning of the internal market for organic food. This approach presupposes consumers’ knowledge of the logo and their understanding of its meaning. By means of an online survey with 3000 participants in 6 European countries, knowledge of the logo and attitudes towards organic farming and European labelling as well as organic food purchase behaviour and socio-demographic indicators were elicited. The results indicate that knowledge of the logo is low. Only about 15% of all respondents knew its meaning. A binary logistic regression revealed that knowledge of the logo is higher among consumers who regularly buy organic food, who have good knowledge on the principles of organic farming and who consider freedom of chemical residues, of synthetic additives and organic production as important features of a high quality product. High education has a positive impact on the awareness of the logo, while age has a negative one. Large differences in knowledge exist between countries: the probability to know the EU logo is highest in Estonia and in Poland. Generally, knowledge of the EU organic logo is such low that the achievement of its purpose is doubted. Reasons are supposed to be the limited self-explanatory content of the logo as well as lacking awareness, resp. promotion campaigns.
Experimental and Computational Investigation of a Nose-Only Exposure Chamber
Creators: name: Lucci, Francesco
name: Tan, Wei Teck
name: Subash Krishnan
name: Hoeng, Julia
name: Vanscheeuwijck, Patrick
name: Jaeger, Rudolph
name: Kuczaj, Arkadiusz
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Inhalation exposure chambers may be used for in vivo drug delivery or toxicological assessments among other applications. Nose-only exposure chamber (NOEC) systems limit non-respiratory aerosol exposure pathways that may affect biological response analyses in mice. Uniform aerosol delivery between all ports is desired, but any exposure system design may introduce variability. The aerosol flow characteristics in a commercially available NOEC system were assessed computationally and experimentally to estimate the particle size-dependent non-uniformities of the aerosol sampled at each exposure port. Only dilute non-evolving aerosols are considered in the present study. The experimental measurements recorded a flow velocity variability of up to 20% between ports. Sampling variability between ports was experimentally verified to be within 10% for particles >0.56 µm and <1.7 µm at controlled velocity dictated by the animal’s respiratory flow rate. This smaller particle number density variability at the exposure port was also predicted computationally. Main source of flow variability was associated to a recirculation inside the inner plenum. Sedimentation of larger particles (>3 µm) was observed inside the ports, causing visible aerosol separation on the top of the channel delivering the aerosol to the exposure trumpet. As the effect was minor and applied to particles beyond the size range recommended for mouse inhalation studies, it should have no influence on the dosimetry of inhaled aerosols. In the range of aerosol particle sizes and flow rates considered, a good agreement between computational and experimental results was found, confirming the suitability of the system for mouse inhalation studies, and the insights obtained may give rise to further improvements in the system design. Copyright © 2019 American Association for Aerosol Research
Limitations on quantum control
Creators: name: Solomon, A. I.
name: Schirmer, S. G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this note we give an introduction to the topic of quantum control, explaining what its objectives are, and describing some of its limitations.
description: 6 pages
Additional file 1 of H3K27ac mediated SS18/BAFs relocation regulates JUN induced pluripotent-somatic transition
Creators: name: Lin, Runxia
name: Zhai, Ziwei
name: Kuang, Junqi
name: Wu, Chuman
name: Yao, Yuxiang
name: Shi, Ruona
name: He, Jiangping
name: Xu, Shuyang
name: Li, Pengli
name: Fan, Yixin
name: Li, Wei
name: Wu, Zichao
name: Li, Xiaoxi
name: Ming, Jin
name: Guo, Jing
name: Wang, Bo
name: Li, Dongwei
name: Cao, Shangtao
name: Zhang, Xiaofei
name: Li, Yi
name: Pei, Duanqing
name: Liu, Jing
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. System specificity of JUNTetON ESCs.
The Origin of X-ray Emission from a Galactic Center Molecular Cloud: Low Energy Cosmic Ray Electrons
Creators: name: Yusef-Zadeh, F.
name: Law, C.
name: Wardle, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Galactic center region near l$\approx0.2^0$ hosts a mixture of nonthermal linear filaments and thermal radio continuum features associated with the radio Arc. Chandra observations of this region reveal an X-ray filament and diffuse emission with an extent of roughly 60$''\times2''$ and 5$'\times3'$, respectively. The X-ray filament lies at the edge of the nonthermal radio filaments and a dense molecular shell G0.13-0.13 that has an unusually high kinetic temperature $\ge$70K. These observations demonstrate that the G0.13--0.13 molecular cloud and the nonthermal radio filaments of the Arc are interacting. The diffuse X-ray emission is correlated with the molecular shell and is fitted either by two-temperature (1 and 10 keV) thermal emission or by power-law and 1 keV thermal gas. Fluorescent 6.4 keV line emission is also detected throughout the molecular shell. This cloud coincides within the error circle of a steady unidentified EGRET source 3EGJ1746--2851. We argue that low-energy cosmic ray electrons (LECRe) produce the power-law continuum by bremsstrahlung and 6.4 keV line emission from the filament and the diffuse cloud with the implication on the origin of the Galactic ridge X-ray emission. The strong 6.4 keV Fe-line emission seen from other Galactic center clouds could be produced in a similar fashion rather than via fluorescent emission induced by a transient hard X-ray source in the Galactic center. In addition, heating by ionization induced by LECRe are also responsible for the high temperature of G0.13-0.13. The gamma-ray source is a result of brehmsstrahlung by the high-energy tail of the electron energy distribution.
description: 14 pages, 5 figures, 1 table, accepted for publications in ApJ Letter
Technological Development of Chemical Sensors for Healthcare and Safety Applications
Creators: name: Tan, Edward Kah Wei
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Point-of-Use
Device Fabrication
Chemical Sensor

description: The development of Point-of-Use (PoU) sensors is driven to provide simple, rapid and reliable test results for applications that require quantitative analysis, in particular in resource-limited settings. To bring a more comprehensive range of tests into the PoU, there is a need to evaluate and improve upon the sensing technologies in terms of the ease of fabrication, sensing capabilities and practicality. This thesis describes the design, fabrication and characterization of PoU sensors on various materials, including polydimethylsiloxane (PDMS), paper and cotton threads. The choice of substrate materials hassled to functionalities that are suitable for a wide spectrum of applications, which has been previously limited by the use of conventional substrates such as glass and silicon. There are technical challenges in terms of device fabrication onto relatively unexplored materials compared to silicon. In the case of PDMS, known techniques for metal patterning are restricted in terms of resolution, yield and scalability. The primary constraint is the incompatibility of its physical properties with conventional cleanroom techniques. A sacrificial layer assisted pattern transfer is reported in this thesis as a fabrication strategy for the reliable patterning of metallic structures of varying shape and dimension (down to the nm range) onto the elastomer. The fabrication process enabled the bottom-up design of a resistive based sensor for the real-time and reversible detection of volatile organic compounds (VOCs). The VOC sensor displayed sensitivity to chloroform and toluene vapour with a rapid response (~ 30 s) and recovery (~ 200 s) at room temperature. The use of paper as a substrate material was also investigated for the electrochemical detection of bilirubin in blood serum. The proposed sensor utilized only 15 μL of sample for the screening of hyperbilirubinaemia in < 2 min. Due to some of the disadvantages of using paper such as the need of sensor calibration prior to potentiometric measurements, cotton threads were explored as an alternative substrate to develop cost-effective PoU tests. Thread-based sensors were characterized for the multiplexing of Na+ and K+ in blood serum, which showed an accuracy of > 98.5%. The sensors were further applied for choline (Ch+) analysis in infant formula with a sensitivity down to µM range. Finally, the use of thread-based sensors for real time monitoring of bioconjugation reactions was investigated. The sensors described here have implications to deliver analysis at the PoU.
description: Trinity Hall, University of Cambridge
An Analysis of Food Safety Private Investments Drivers in the Italian Meat Sector
Creators: name: Martino, Gaetano
name: Bavorovà, Miroslava
name: Martino, Gaetano
name: Bavorovà, Miroslava
Publisher: name: Unknown
Year: 2014
Subjects: Agribusiness
Food Consumption/Nutrition/Food Safety
Food Security and Poverty

description: The general focus of this study is to investigate the decision to invest in food safety as a field of connection between public and private strategies. The objective if the study is to investigate how the legislation pressure influence the decision to invest in food safety systems. The basic idea is to conceptualize the allocation of the decision right to invest among the transaction party, counterparty and regulator as a source of drivers of investments. While the allocation of the decision rights is recognized as the key factor in coping with uncertainty (Gibbons, 2005), it is also here held as term of the micro-foundations of the organizational arrangements (Grandori, Furnari, 2008). Food companies and agricultural farms pay a great and necessary attention to technologies and economic relationships and arrangements aimed at enhancing and ensuring the due degree of products safety. In all the chain stages, adequate technologies are needed in order to carry out the productive process according to the best prerequisites identified by health and food sciences. Policy interventions intended to prevent food safety crisis have shaped the institutional environment of food systems channelling the companies strategies and have induced, with the technological requirements, the raise of complex organizational forms (Hobbs, 2002; Mènard and Valceschini, 2005). The food chain actors elaborate complex strategies in which technological and organizational choices and institutional commitments assure the food safety level demanded by public and private safety regulations and strategies.
Coherent population oscillations and an effective spin-exchange interaction in a $\mathcal{PT}$ symmetric polariton mixture
Creators: name: Kalozoumis, P. A.
name: Nikolopoulos, G. M.
name: Petrosyan, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a two-species mixture of exciton-polaritons with self- and cross-interaction nonlinearities in a double well structure, in the presence of relaxation and continuous pumping. We identify the conditions that render the system parity-time ($\mathcal{PT}$) symmetric, and investigate its dynamic and static properties. We show that the system can exhibit long-term coherent oscillations of populations of the two polaritonic components between the two potential wells, and can simulate the dynamics of a pair of spin-1/2 particles (qubits) in the presence of exchange interaction.
description: 7 pages, 4 figures
Signatures of Hierarchical Clustering in Dark Matter Detection Experiments
Creators: name: Stiff, D.
name: Widrow, L. M.
name: Frieman, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the cold dark matter model of structure formation, galaxies are assembled hierarchically from mergers and the accretion of subclumps. This process is expected to leave residual substructure in the Galactic dark halo, including partially disrupted clumps and their associated tidal debris. We develop a model for such halo substructure and study its implications for dark matter (WIMP and axion) detection experiments. We combine the Press-Schechter model for the distribution of halo subclump masses with N-body simulations of the evolution and disruption of individual clumps as they orbit through the evolving Galaxy to derive the probability that the Earth is passing through a subclump or stream of a given density. Our results suggest that it is likely that the local complement of dark matter particles includes a 1-5% contribution from a single clump. The implications for dark matter detection experiments are significant, since the disrupted clump is composed of a `cold' flow of high-velocity particles. We describe the distinctive features due to halo clumps that would be seen in the energy and angular spectra of detection experiments. The annual modulation of these features would have a different signature and phase from that for a smooth halo and, in principle, would allow one to discern the direction of motion of the clump relative to the Galactic center.
description: 26 pages, 18 figures
The process $μ\to ν_{e}e\barν_μ $in the 2HDM with flavor changing neutral currents
Creators: name: Diaz, Rodolfo A.
name: Martinez, R.
name: Poveda, Nicanor
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the process $μ\to ν_{e}e\barν_μ $in the framework of a two Higgs doublet model with flavor changing neutral currents (FCNC). Since FCNC generates in turn flavor changing charged currents in the lepton sector, this process appears at tree level mediated by a charged Higgs boson exchange. From the experimental upper limit for this decay, we obtain the bound $| ξ_{μe}/m_{H^{\pm}}| \leq 3.8\times 10^{-3}$ where$ ξ_{μe} $refers to the mixing between the first and second lepton generations, and $m_{H^{\pm}} $denotes the mass of the charged Higgs boson. This bound is independent on the other free parameters of the model. In particular, for $m_{H^{\pm}}\simeq 100$GeV we get $| ξ_{eμ}| $ $\lesssim 0.38$
description: 2 pages, no figures
A Convex Optimization Approach for Finite-Thrust Time-Constrained Cooperative Rendezvous
Creators: name: Benedikter, Boris
name: Zavoli, Alessandro
name: Colasurdo, Guido
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper presents a convex approach to the optimization of a cooperative rendezvous, that is, the problem of two distant spacecraft that simultaneously operate to get closer. Convex programming guarantees convergence towards the optimal solution in a limited, short, time by using highly efficient numerical algorithms. A combination of lossless and successive convexification techniques is adopted to handle the nonconvexities of the original problem. Specifically, a convenient change of variables and a constraint relaxation are performed, while a successive linearization of the equations of motion is employed to handle the nonlinear dynamics. A filtering technique concerning the recursive update of the reference solution is proposed in order to enhance the algorithm robustness. Numerical results are presented and compared with those provided by an indirect method.
description: 2019 AAS/AIAA Astrodynamics Specialist Conference, Portland, Maine (USA)
Scrobipalpa nitentella
Creators: name: Junnilainen, Jari
name: Karsholt, Ole
name: Nupponen, Kari
name: Kaitila, Jari-Pekka
name: Nupponen, Timo
name: Olschwang, Vladimir
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Scrobipalpa
Scrobipalpa nitentella

description: Scrobipalpa nitentella (Fuchs, 1902)
Ajat River 4. VII.1997; Berlin 30. VI –2. VII.1997; Burannoe 6–7.VIII.2005; Chalk Hills 3–5.VIII.2005; Moskovo 10. VII.1998; Verbljushka 30.V–2.VI.1998, 31.VII–1.VIII.2005. A total of 22 exx. Genitalia slides: Hendriksen: 2885, 2968, 5475.
 Distribution. Widely distributed, but local in Europe. N Africa (Tunisia), Turkey, Afghanistan and Mongolia (Povolný 2002). Also recorded from Siberia (Transbaikalia) (Bidzilya et al. 1998).
description: Published as part of Junnilainen, Jari, Karsholt, Ole, Nupponen, Kari, Kaitila, Jari-Pekka, Nupponen, Timo & Olschwang, Vladimir, 2010, The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae) 2367, pp. 1-68 in Zootaxa 2367 (1) on page 49, DOI: 10.11646/zootaxa.2367.1.1, http://zenodo.org/record/10093655
Planetary Nebulae as Standard Candles. XII. Connecting the Population I and Population II Distance Scales
Creators: name: Ciardullo, Robin
name: Feldmeier, John J.
name: Jacoby, George H.
name: de Naray, Rachel Kuzio
name: Laychak, Mary Beth
name: Durrell, Patrick R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of [OIII] lambda 5007 surveys for planetary nebulae (PNe) in NGC 2403, 3115, 3351, 3627, 4258, and 5866. Using on-band/off-band [OIII] and H-alpha images, we identify samples of PNe in these galaxies and derive distances using the planetary nebula luminosity function (PNLF). We then combine these measurements with previous data to compare the PNLF, Cepheid, and surface brightness fluctuation (SBF) distance scales. We use a sample of 13 galaxies to show that the absolute magnitude of the PNLF cutoff is fainter in small, low-metallicity systems, but the trend is well modelled theoretically. When this dependence is removed, the scatter between the Cepheid and PNLF distances becomes consistent with the internal errors of the methods and independent of any obvious galaxy parameter. We then use the data to recalibrate the zero point of the PNLF distance scale. We use a sample of 28 galaxies to show that the scatter between the PNLF and SBF distance measurements agrees with that predicted from the techniques' internal errors, and that no systematic trend exists between the distance residuals and stellar population. However, we find the PNLF and SBF methods have a significant scale offset: Cepheid-calibrated PNLF distances are, on average, ~0.3 mag smaller than Cepheid-calibrated SBF distances. We discuss the possible causes of this offset, and suggest that internal extinction in the bulges of the SBF calibration galaxies is the principle cause of the discrepancy. If this is correct, the SBF-based Hubble Constant must be increased by ~7%. We use our distance to NGC 4258 to argue that the short distance scale to the LMC is correct, and that the global Hubble Constant inferred from the HST Key Project should be increased by 8 +/- 3% to H_0 = 78 +/- 7 km/s/Mpc. (abridged)
description: 38 pages, 9 figures included, accepted for publication in the Astrophysical Journal
Averaging Gaussian functionals
Creators: name: Nualart, David
name: Zheng, Guangqu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H15, 60H07, 60G15, 60F05

description: This paper consists of two parts. In the first part, we focus on the average of a functional over shifted Gaussian homogeneous noise and as the averaging domain covers the whole space, we establish a Breuer-Major type Gaussian fluctuation based on various assumptions on the covariance kernel and/or the spectral measure. Our methodology for the first part begins with the application of Malliavin calculus around Nualart-Peccati's Fourth Moment Theorem, and in addition we apply the Fourier techniques as well as a soft approximation argument based on Bessel functions of first kind. The same methodology leads us to investigate a closely related problem in the second part. We study the spatial average of a linear stochastic heat equation driven by space-time Gaussian colored noise. The temporal covariance kernel $γ_0$ is assumed to be locally integrable in this paper. If the spatial covariance kernel is nonnegative and integrable on the whole space, then the spatial average admits Gaussian fluctuation; with some extra mild integrability condition on $γ_0$, we are able to provide a functional central limit theorem. These results complement recent studies on the spatial average for SPDEs. Our analysis also allows us to consider the case where the spatial covariance kernel is not integrable: For example, in the case of the Riesz kernel, the first chaotic component of the spatial average is dominant so that the Gaussian fluctuation also holds true.
description: Version 1:60pages; Version 2: 64 pages, Theorem 1.9 (functional version of Theorem 1.7) is new
Analyses of CWF (CaFe3O5) phase formation in lime-magnetite pellets
Creators: name: S. Purohit
name: G. Brooks
name: M. A. Rhamdhani
name: M. I. Pownceby
name: N. A. S. Webster
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry

description: An alternative route of magnetite processing involving the formation of CWF (CaFe3O5/calcio-magnetite) phase in lime-magnetite pellets (LMPs) was proposed in the previous paper. This paper is focused on the isothermal kinetics of the overall reaction, and of CWF formation, at 850, 950 and 1050°C. Different kinetics models were evaluated for the current data, and model-fitting techniques with linear regression analysis was applied. Microstructural analysis was carried out using SEM and EPMA to understand the evolution of product morphology and the reaction mechanism. The time series experiments and characterization results suggested the formation of CWF phase within 5 min of reaction and the formation of C2F (2CaO·Fe2O3) as a transient phase. Kinetic analysis suggested both the overall reaction and CWF formation could be described by Jander model. While there was good evidence for solid-state diffusion-controlled reaction mechanism, further study is required to establish the rate limiting step.
Giant Elephant Trunks from Giant Molecular Clouds
Creators: name: Sofue, Yoshiaki
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of large elephant trunk (ET)-like objects, named giant elephant trunk (GET), of molecular gas in star forming complexes in the Scutum and Norma arms using the $^{12}$CO(J=1-0)-line survey data with the Nobeyama 45-m telescope. In comparison with the CO maps of ETs in M16 as derived from the same data, we discuss physical properties of the GETs. Their lengths are $\sim 20$ to 50 pc, an order of magnitude larger than ETs. GETs show a cometary structure coherently aligned parallel to the galactic plane, and emerge from bow-shaped concave surface of giant molecular clouds (GMC) facing the HII regions, and point down-stream of the gas flow in the spiral arms. The molecular masses of the head clumps are $\sim 10^3 -10^4 M_\odot$, about 3 to 4 times the virial masses, indicating that the clumps are gravitationally stable. Jeans masses calculated for the derived density and assumed kinetic temperature are commonly sub-solar. We suggest that the GET heads are possible birth sites of stellar clusters, similarly to ETs' globules, but at much greater scale. We discuss the origin of the GETs by Rayleigh-Taylor instability due to deceleration of GMCs by low density gas stagnated in the galactic shock waves as well as by pressure of the HII regions.
description: 2019, PASJ,71,121 (published), https://doi.org/10.1093/pasj/psz106, 12 pages, 9 figures, 2 tables
Exploring human mobility: a time-informed approach to pattern mining and sequence similarity
Creators: name: Yang, Hao
name: Yao, X. Angela
name: Whalen, Christopher C.
name: Kiwanuka, Noah
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy

description: The surge in the availability of spatial big data has sparked increased interest in researching human mobility patterns. Despite this, discovering human mobility patterns from such spatial big data and assessing the similarity between patterns remains a formidable challenge. This study introduces two novel methods: the Time-Informed pattern mining (TiPam) method for frequent pattern mining and a Time-Aware Longest Common Subsequence (T-LCS) algorithm for assessing similarity between time-conscious sequences. Leveraging these innovative algorithms, our research introduces an analytical framework for analyzing human mobility patterns at both individual and aggregated levels. As a case study, this proposed workflow is applied to examine the daily mobility patterns of voluntary mobile phone users in Kampala, Uganda. The 135 participants are found in four distinct groups labeled with distinct mobility properties for users in each group: ‘stay-at-home’, ‘unoccupied’, ‘education-oriented’, and ‘work-oriented’. The results effectively showcase the efficiency of the framework and the novel techniques employed. The framework’s versatility extends to human mobility studies with other forms of data and across various research fields.
Resonant spin current in nanotube double junctions
Creators: name: Tamura, Ryo
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Zero bias conductance per spin of nanotube double junction (NTDJ) is investigated theoretically using the tight binding model, unrestricted Hartree-Fock approximation and non-equilibrium Green's functions. NTDJ consists of two metallic nanotubes joined by a piece of semiconducting nanotube, with the transition between the nanotubes made up of sets of 5 and 7 member carbon rings. A quantum well forms in the central semiconducting NT region, bounded by Schottky barriers. Spin current occurs when Coulomb interactions raise the spin degeneracy of resonant levels in the quantum well. As long as an appropriate semiconducting NT length is chosen, spin direction can be controlled by gate voltage, i.e., NTDJ functions as a nano spin filter.
description: 4 pages, RevTeX, uses epsf.sty
NMR study of the spin excitations in the frustrated antiferromagnet Yb(BaBO$_3$)$_3$ with a triangular lattice
Creators: name: Zeng, K. Y.
name: Ma, Long
name: Gao, Y. X.
name: Tian, Z. M.
name: Ling, L. S.
name: Pi, Li
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, we study the spin excitation properties of the frustrated triangular-lattice antiferromagnet Yb(BaBO$_3$)$_3$ with nuclear magnetic resonance. From the spectral analysis, neither magnetic ordering nor spin freezing is observed with temperature down to $T=0.26$ K, far below its Curie-Weiss temperature $|θ_w|\sim2.3$ K. From the nuclear relaxation measurement, precise temperature-independent spin-lattice relaxation rates are observed at low temperatures under a weak magnetic field, indicating the gapless spin excitations. Further increasing the field intensity, we observe a spin excitation gap with the gap size proportional to the field intensity. These phenomena suggest a very unusual strongly correlated quantum disordered phase, and the implications for the quantum spin liquid state are further discussed.
description: 6 pages, 6 figures. Supplemental materials available upon request
Quantum channel of continuous variable teleportation and nonclassicality of quantum states
Creators: name: Takeoka, Masahiro
name: Ban, Masashi
name: Sasaki, Masahide
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Noisy teleportation of nonclassical quantum states via a two-mode squeezed-vacuum state is studied with the completely positive map and the Glauber-Sudarshan $P$-function. Using the nonclassical depth as a measure of transmission performance, we compare the teleportation scheme with the direct transmission through a noisy channel. The noise model is based on the coupling to the vacuum field. It is shown that the teleportation channel has better transmission performance than the direct transmission channel in a certain region. The bounds for such region and for obtaining the nonvanished nonclassicality of the teleported quantum states are also discussed. Our model shows a reasonable agreement with the observed teleportation fidelity in the experiment by Furusawa et al. [Science {\bf 282}, 706 (1998)]. We finally mention the required conditions for transmitting nonclassical features in real experiments.
description: 16 pages, 4 figures
Scrobipalpa notata, comb. n.
Creators: name: Junnilainen, Jari
name: Karsholt, Ole
name: Nupponen, Kari
name: Kaitila, Jari-Pekka
name: Nupponen, Timo
name: Olschwang, Vladimir
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Scrobipalpa
Scrobipalpa notata

description: Scrobipalpa notata ( Povolný, 2001) comb. n.
Chalk Hills 5. VI.1998; 23.VII.1999, 11.VI.2001, 29.VI–1.VII.2003; Sakmara river 21. VI.1996; Verbljushka 11.VI.1998, 14.VII.1998, 18.VI.1999, 27.VIII.2000, 9–10.IX.2002. A total of 15 exx. Genitalia slides: Hendriksen 3990, 3991, 5017, 6432; Huemer: 03/1193, 03/1194, 03/1196.
 Distribution. Ukraine (Crimea) and Russia (S Ural).
 Remarks. This species is new to Russia.
description: Published as part of Junnilainen, Jari, Karsholt, Ole, Nupponen, Kari, Kaitila, Jari-Pekka, Nupponen, Timo & Olschwang, Vladimir, 2010, The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae) 2367, pp. 1-68 in Zootaxa 2367 (1) on page 49, DOI: 10.11646/zootaxa.2367.1.1, http://zenodo.org/record/10093655
Signal sampling and processing in magnetic resonance applications
Creators: name: Reci, Andi
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: signal sampling
signal processing
magnetic resonance

description: In this thesis, signal sampling and processing techniques are developed for magnetic resonance applications, to improve the estimation of magnetic resonance parameters and to reduce experimental acquisition times. Two processing techniques are developed for Nuclear Magnetic Resonance (NMR) relaxation and diffusion experiments. $L_1$ regularization is recommended for extracting parameter distributions which are a priori known to be composed of sparse features. $L_1$ regularization is shown to be stable at signal-to-noise ratios < 20 and capable of resolving relaxation time constants and diffusion coefficients which differ by as little as 10%, such as in relaxation and diffusion studies of hexane/dodecane in porous media. Modified Total Generalized Variation (MTGV) regularization is recommended for extracting parameter distributions for which there is no prior knowledge of whether they are composed of sparse or smooth features. MTGV regularization is shown to perform better than conventional processing techniques and $L_1$ regularization over a range of simulated distributions. A method for optimising sampling patterns for relaxation and diffusion experiments, based on the Cramér-Rao Lower Bound theory, is presented. The method is validated against pulsed field gradient NMR diffusion data of two experimental systems. In the first experimental system, the sampling pattern is optimised for the most accurate estimation of the lognormal distribution parameters of an emulsion droplet size distribution of toluene in water. In the second experimental system, the sampling pattern is optimised for the most accurate estimation of the bi-exponential model parameters of a binary mixture of methane/ethane adsorbed in a zeolite. The proposed method predicts an uncertainty in estimating the model parameters which is < 10% different from the uncertainty estimated from the experimental data sampled using the same sampling pattern. Signal sampling and processing techniques are subsequently combined to reduce experimental acquisition times, which opens opportunities for studying unsteady systems over a long acquisition time and investigating fast-changing phenomena. A 32-fold decrease in the experimental acquisition time is achieved in extracting 3D spatially resolved spin spin relaxation maps. This is expected to be useful in investigating porous media systems. Three-component velocity maps on a 2D image, acquired every 4 ms, are used to capture, for the first time, the hydrodynamics of a bubble burst event. The experimental data are used to validate the predictions of numerical works.
description: Gates Cambridge Scholarship
Scrobipalpa obsoletella Fischer von Roslerstamm 1840
Creators: name: Junnilainen, Jari
name: Karsholt, Ole
name: Nupponen, Kari
name: Kaitila, Jari-Pekka
name: Nupponen, Timo
name: Olschwang, Vladimir
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Scrobipalpa
Scrobipalpa obsoletella

description: Scrobipalpa obsoletella (Fischer v. Röslerstamm, 1841)
Arkaim 14–16.VI.1996, 6.VII.1997, 19.VI.1999; Berlin 1.VII.1997; Burannoe 30. VII.2000; Chalk Hills 3– 7.VI.1998, 25.V.2004; Kidriasovo 28. V –29.1998; Kizilskoye 27. V.1998; Miass 26. VI.1997; Novoiletzk 9. VI.1998; Verbljushka 30. V –3. VI.1998, 28. VII.2000. A total of 32 exx. Genitalia slides: Hendriksen: 2936, 2939, 2964, 2966, 2976, 3152, 6430, 6431. One further genitalia preparation preserved in glycerol.
 Distribution. Widely distributed in Europe. Outside Europe recorded from Turkey, the Caucasus and Iran to Asian Russia (Transbaikalia) and Mongolia. Single specimens from South Africa and North America are probably introduced (Povolný 2002).
description: Published as part of Junnilainen, Jari, Karsholt, Ole, Nupponen, Kari, Kaitila, Jari-Pekka, Nupponen, Timo & Olschwang, Vladimir, 2010, The gelechiid fauna of the southern Ural Mountains, part II: list of recorded species with taxonomic notes (Lepidoptera: Gelechiidae) 2367, pp. 1-68 in Zootaxa 2367 (1) on page 49, DOI: 10.11646/zootaxa.2367.1.1, http://zenodo.org/record/10093655
Additional file 2 of H3K27ac mediated SS18/BAFs relocation regulates JUN induced pluripotent-somatic transition
Creators: name: Lin, Runxia
name: Zhai, Ziwei
name: Kuang, Junqi
name: Wu, Chuman
name: Yao, Yuxiang
name: Shi, Ruona
name: He, Jiangping
name: Xu, Shuyang
name: Li, Pengli
name: Fan, Yixin
name: Li, Wei
name: Wu, Zichao
name: Li, Xiaoxi
name: Ming, Jin
name: Guo, Jing
name: Wang, Bo
name: Li, Dongwei
name: Cao, Shangtao
name: Zhang, Xiaofei
name: Li, Yi
name: Pei, Duanqing
name: Liu, Jing
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. ATAC motif analysis and RNA-seq Gene ontology.
Sylow branching coefficients for symmetric groups
Creators: name: Giannelli, Eugenio
name: Law, Stacey
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $p\ge 5$ be a prime and let $n$ be a natural number. In this article we describe the irreducible constituents of the induced characters $ϕ\big\uparrow^{\mathfrak{S}_n}$ for arbitrary linear characters $ϕ$ of a Sylow $p$-subgroup of the symmetric group $\mathfrak{S}_n$, generalising earlier results of the authors. By doing so, we introduce Sylow branching coefficients for symmetric groups.
description: 31 pages
MUSE: an open-access platform for urban expansion simulation with multitype patch generation engine and multilevel morphology regulation
Creators: name: Yang, Jianxin
name: Shi, Rui
name: Tang, Wenwu
name: Wang, Jingruo
name: Gong, Jian
name: Xu, Gang
name: Yang, Shengbing
name: Wang, Lizhou
name: Chen, Yinkun
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Urban expansion models (UEMs) help unfold the mechanism, future pathways, and relevant repercussions of urban landscape dynamics. Although a plethora of UEMs have been developed, the field of open-access modeling platform for urban expansion simulation still presents gaps in terms of representing urban development events, regulating multilevel urban morphologies, and reflecting underlying regularities of physical urban growth. This study develops an open-access Multiengine Urban Expansion Simulation (MUSE) platform together with software that addresses some of these limitations. MUSE employs patch-based concepts and different patch generation engines to represent urban development events of distinctive types, enabling control over spatial morphology at landscape, class and patch levels. Moreover, MUSE incorporates two general regularities on urban development waves and urban diffusion and coalescence to govern physical urban expansion processes. Experiments in two cities examine MUSE’s ability in simulating realistic urban dynamics, and a series of synthetic experiments verify the operational behavior of the patch generation engines. These experiments show that MUSE can simulate a range of urban expansion types, including infill, edge growth and leapfrog expansion, and various morphologies, such as aggregated, sprawl, fragmented and compact. MUSE can empower practitioners to better project, analyze and understand complex urbanization dynamics.