cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Technical Efficiency and Adoption of Soil Conservation in El Salvador and Honduras
Creators: name: Solis, Daniel
name: Bravo-Ureta, Boris E.
name: Quiroga, Ricardo E.
name: Solis, Daniel
name: Bravo-Ureta, Boris E.
name: Quiroga, Ricardo E.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Land Economics/Use
subject: Stochastic Frontiers
subject: Technical Efficiency
subject: Switching Regression
subject: Central America
subject: Soil Conservation

description: A household-level switching regression model is implemented to examine potential selectivity bias for rural households under high and low levels of investments in soil conservation in El Salvador and Honduras. In the presence of selectivity bias, separate stochastic production frontiers are estimated for low and high adopters. The main results indicate that households with higher levels of investments in soil conservation show higher average TE than those with a lower level of investments. Constrains in the rural land and credit markets are likely explanations for these differences. The results also indicate that for farms with lower levels of investments in soil conservation access to credit is a significant factor explaining the sources of inefficiency. Conversely, households with higher levels of investments have the highest partial output elasticity for land, the highest levels of TE and the smallest farms. These results are consistent with the presence of a failure in the land market which would limit access to land to the more efficient producers.
Charge Distributions of Moving Nucleons
Creators: name: Lorcé, Cédric
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Relativistic charge distributions of targets with arbitrary average momentum are introduced. They provide an interpolation between the usual Breit frame and infinite-momentum frame distributions. We find that Breit frame distributions can be interpreted from a phase-space perspective as internal charge quasi-densities in the rest frame of a localized target, without any relativistic correction. We show also that the apparent discrepancies between Breit frame and infinite-momentum frame distributions simply result from kinematical artifacts associated with spin.
description: 5 pages, 3 figures
On the Twain Food Supply Chain in China - Impact of Supermarket Development on Agricultural Sector and Agrifood Safety in China
Creators: name: Hu, Dinghuan
name: Hu, Dinghuan
Publisher: name: Unknown
Year: 2006
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: safety agrifood
subject: agrifood distribution
subject: supermarkets
subject: agrifood supply chain
subject: small-scale farmers

description: Food safety is attracting more and more attention by sectors of various kinds. However, the contradiction faced by China is the continuous growing safety and quality agrifood market and export demand together with large volumes of distributed and un-organized small-scale rural household production. If we cannot effectively organize agrifood production of distributed rural households, provide technical guidance, and exercise supervision during the production process, it is obvious that it is difficult to supply safety and quality agrifood in large volumes, sustainably and steadily. In the first place, this study has put forward the fact that the rapid development of supermarket in China has created favorable and irreplaceable objective conditions for safety and quality agrifood production in China. The management and supervision costs over supermarket supply chain by the society and government departments are much lower than those in traditional country fairs and wholesale markets. We can adopt the model of "supermarket + leading enterprises (agrifood suppliers) + rural households," to guide thousands of small-scale rural households to access to supermarket supply chains so as to speed up the pace of the popularization of safety and quality agrifood.
Multiple and virtual photon processes in radiation-induced magnetoresistance oscillations in two-dimensional electron systems
Creators: name: Lei, X. L.
name: Liu, S. Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recently discovered new structures and zero-resistance states outside the well-known oscillations are demonstrated to arise from multiphoton assisted processes, by a detailed analysis of microwave photoresistance in two-dimensional electron systems under enhanced radiation. The concomitant resistance dropping and peak narrowing observed in the experiments are also reproduced. We show that the radiation-induced suppression of average resistance comes from virtual photon effect and exists throughout the whole magnetic field range.
description: 4 pages, 2 figures, published version
Additional file 1 of Social participation is an important health behaviour for health and quality of life among chronically ill older Chinese people
Creators: name: Feng, Zeyun
name: Cramm, Jane Murray
name: Nieboer, Anna Petra
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Social participation index.
Data-Driven Discrete-time Control with Hölder-Continuous Real-time Learning
Creators: name: Sanyal, Amit K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 93D40, 93D05

description: This work provides a framework for data-driven control of discrete time systems with unknown input-output dynamics and outputs controllable by the inputs. This framework leads to stable and robust real-time control of the system such that a feasible output trajectory can be tracked. This is made possible by rapid real-time stable learning of the unknown dynamics using Hölder-continuous learning schemes that are designed as discrete-time stable disturbance observers. This observer learns from prior input-output history and it ensures finite-time stable convergence of model estimation errors to a bounded neighborhood of the zero vector if the system is known to be Lipschitz-continuous with respect to outputs, inputs, internal parameters and states, and time. In combination with nonlinearly stable controller designs, this makes the proposed framework nonlinearly stable and robust to disturbances, model uncertainties, and unknown measurement noise. Nonlinear stability and robustness analyses of the observer and controller designs are carried out using discrete Lyapunov analysis. Hölder-continuous Finite-time stable observer and controller designs in this framework help to prove robustness of these schemes and guaranteed convergence of outputs to a bounded neighborhood of the desired output trajectory. A numerical experiment on a nonlinear second-order system demonstrates the performance of this discrete nonlinear model-free control framework.
description: 29 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1907.10840
Asymptotic Safety and the Cosmic Coincidence Problem
Creators: name: Zarikas, Vasilios
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83D05

description: Asymptotic Safety (AS) Paradigm is an interesting set of ideas and methods towards a meaningful quantization of Gravity. A brief review of phenomenological consequences in the context of AS regarding cosmology with emphasis on dark energy is given. Furthermore, recent studies that suggest a natural explanation of the recent cosmic acceleration and its coincidence using large-scale structure and AS framework will be analyzed. Finally, the present work extends the analysis of a recent new set of modified Einstein equations inspired from AS program.
Consumers' Preferences for GM Food and Voluntary Information Acquisition: A Simultaneous Choice Analysis
Creators: name: Veeman, Michele M.
name: Hu, Wuyang
name: Adamowicz, Wiktor L.
name: Veeman, Michele M.
name: Hu, Wuyang
name: Adamowicz, Wiktor L.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Research and Development/Tech Change/Emerging Technologies
subject: Genetically modified food
subject: information search
subject: multinomial logit models
subject: simultaneous modeling.

description: Previous research studies directed at the influence of information on consumers' preferences and choices of food in the context of genetically modified (GM) food assume that information is exogenous, in that this is provided to consumers from external sources. Information made available to consumers is also typically treated as being received and processed. Other literature and observation suggests that these two features tend not to apply in practice. Using data from a choice experiment on consumers' choices for genetically modified food in which respondents were able to voluntarily access information, this study allows information to be endogenous; consumers' product choices and information access decisions are examined within a simultaneous choice framework. We find that these two types of decisions are related, but not entirely as might be expected from the existing agricultural economics literature since those with more negative attitudes toward GM food were most likely to access information made available. Our results are consistent with research findings in the social psychology literature. There is heterogeneity across consumers in the relationship between information access and consumer choices which may reflect differentiation in attitudes to GM food.
Additional file 1 of Efficacy of matrilin-3-primed adipose-derived mesenchymal stem cell spheroids in a rabbit model of disc degeneration
Creators: name: Manjunatha S. Muttigi
name: Kim, Byoung Ju
name: Kumar, Hemant
name: Sunghyun Park
name: Choi, Un Yong
name: Inbo Han
name: Hansoo Park
name: Soo-Hong Lee
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology

description: Additional file 1: Supplementary Figure 1. MSC surface marker expression determined by flow cytometric analysis on culture day 5 according to different concentrations of matrilin-3 (MATN3). Supplementary Figure 2. Cell cycle analysis. A) Flow analysis of cell cycle; B) cyclin D1 mRNA expression on culture day 6. Abbreviations: Figure A) G1: Ad-MSCs; G2: Ad-MSCs + matrilin-3 (10 ng/ml); G3: Ad-MSCs + matrilin-3 (20 ng/ml); G4: Ad-MSCs + matrilin-3 (50 ng/ml); Figure C) G1: Ad-MSCs monolayer; G2: matrilin-3 primed Ad-MSCs monolayer; G3: Ad-MSCs spheroid (125 cells/microwell); G4: matrilin-3 primed Ad-MSCs spheroid (125 cells/microwell); G5: matrilin-3 primed Ad-MSCs spheroid (250 cells/microwell); G6: matrilin-3 primed Ad-MSCs spheroid (500 cells/microwell). ***p
Adoption of Soil Erosion Control Practices in Southern Spain Olive Groves
Creators: name: Franco, Juan Agustin
name: Calatrava-Leyva, Javier
name: Franco, Juan Agustin
name: Calatrava-Leyva, Javier
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: olive groves
subject: soil erosion
subject: soil conservation
subject: cross compliance

description: This paper presents results from a survey carried out in 2005 among 147 olive tree farmers from the Alto Genil River Basin in Southern Spain regarding the adoption of soil conservation and management practices. Olive tree groves in South-eastern Spain's mountainous areas are subject to a high risk of soil erosion and have to incur in high costs of soil conservation. This results in great difficulties to comply with cross-compliance and to benefit from agri-environmental schemes. Our main objectives are to analyse the current level of adoption of soil conservation practices and to analyse which socio-economic and institutional factors determine such adoption. Three Probit models are estimated. Dependant variables are three different soil conservation practices, namely tillage following contour lines, maintaining the rests of pruning on the ground, and non-tillage with weedicides.
Some aspects of the synchronization in coupled maps
Creators: name: Pinto, Sandro E. de Souza
name: Lunardi, José T.
name: Saleh, Abdala M.
name: Batista, Antonio M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Through numerical simulations we analyze the synchronization time and the Lyapunov dimension of a coupled map lattice consisting of a chain of chaotic logistic maps exhibiting power law interactions. From the observed behaviors we find a lower bound for the size $N$ of the lattice, independent of the range and strength of the interaction, which imposes a practical lower bound in numerical simulations for the system to be considered in the thermodynamic limit. We also observe the existence of a strong correlation between the averaged synchronization time and the Lyapunov dimension. This is an interesting result because it allows an analytical estimation of the synchronization time, which otherwise requires numerical simulations.
description: 4 pages, 6 figures
Machine learning for electronically excited states of molecules
Creators: name: Westermayr, Julia
name: Marquetand, Philipp
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Electronically excited states of molecules are at the heart of photochemistry, photophysics, as well as photobiology and also play a role in material science. Their theoretical description requires highly accurate quantum chemical calculations, which are computationally expensive. In this review, we focus on how machine learning is employed not only to speed up such excited-state simulations but also how this branch of artificial intelligence can be used to advance this exciting research field in all its aspects. Discussed applications of machine learning for excited states include excited-state dynamics simulations, static calculations of absorption spectra, as well as many others. In order to put these studies into context, we discuss the promises and pitfalls of the involved machine learning techniques. Since the latter are mostly based on quantum chemistry calculations, we also provide a short introduction into excited-state electronic structure methods, approaches for nonadiabatic dynamics simulations and describe tricks and problems when using them in machine learning for excited states of molecules.
Additional file 1 of Association of cerebral venous thrombosis with recent COVID-19 vaccination: case-crossover study using ascertainment through neuroimaging in Scotland
Creators: name: McKeigue, Paul M.
name: Burgul, Raj
name: Bishop, Jen
name: Robertson, Chris
name: McMenamin, Jim
name: O’Leary, Maureen
name: McAllister, David A.
name: Colhoun, Helen M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Figure S1. Flow diagram for case ascertainment from scan reports.
Understanding entangled spins in QED
Creators: name: Wanng, Hai-Jhun
name: Geng, W. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The stability of two entangled spins dressed by electrons is studied by calculating the scattering phase shifts. The interaction between electrons is interpreted by fully relativistic QED and the screening effect is described phenomenologically in the Debye exponential form $e^{-αr}$. Our results show that if the (Einstein-Podolsky-Rosen-) EPR-type states are kept stable under the interaction of QED, the spatial wave function must be parity-dependent. The spin-singlet state $s=0$ and the polarized state $\frac 1{\sqrt{2}}(\mid +-> -\mid -+>)$ along the z-axis\QTR{bf}{\}give rise to two different kinds of phase shifts\QTR{bf}{.} Interestingly, the interaction between electrons in the spin-singlet pair is found to be attractive. Such an attraction could be very useful when we extract the entangled spins from superconductors. A mechanism to filter the entangled spins is also discussed.
description: 6 pages, 3 figures. changes added
Additional file 1 of Quantitative-enhancer-FACS-seq (QeFS) reveals epistatic interactions among motifs within transcriptional enhancers in developing Drosophila tissue
Creators: name: Waters, Colin T.
name: Gisselbrecht, Stephen S.
name: Sytnikova, Yuliya A.
name: Cafarelli, Tiziana M.
name: Hill, David E.
name: Bulyk, Martha L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Figures. Figures S1–S32.
Transaction Cost Analysis of Upstream-Downstream Relations in Watershed Services: Lessons from Community-Based Forestry Management in Sumatra, Indonesia
Creators: name: Arifin, Bustanul
name: Arifin, Bustanul
Publisher: name: Unknown
Year: 2006
Subjects: subject: Resource /Energy Economics and Policy
subject: Environmental services
subject: transaction costs
subject: Indonesia

description: This study analyzes transaction costs occurred in the existing set-up of upstream-downstream relations and reward mechanisms of the watershed services in Sumatra, Indonesia. The rewards are manifested through property right reforms in terms of "recognition" and "loss of fear of eviction" among local communities to utilize land within the "protection forest", such as implemented under the community-based forestry management (CBFM) policy. The study sites of Sumber Jaya watershed in Sumatra, Indonesia has been notoriously known as a benchmark for conflict of watershed functions between the state and the society, and among stakeholders such as coffee growers, domestic water-users, hydroelectric power company, etc. Estimated transaction cost to implement the rewards is US$ 55 per household, a relatively high cost for rural standards. The component consists of costs of searching information (70%), organizing the group (27%), and enforcement of working rules and regulations (3%), implying a non-efficient economic organization of the society and non-clear policy structures at regional and national level. Roles of intermediaries such as NGO (national and international) are extremely important to implement the negotiation support system and develop multi- stakeholders strategy to reduce transaction costs, especially to ensure conflict resolutions, improve trusts and shared responsibility to achieve more sustainable resource management.
Seasoning a Monopsonic Processor for Collective Action amongst Pepper Producers in Costa Rica
Creators: name: Saenz-Segura, Fernando J.F.
name: Schipper, Robert A.
name: D'Haese, Marijke F.C.
name: Saenz-Segura, Fernando J.F.
name: Schipper, Robert A.
name: D'Haese, Marijke F.C.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Collective action
subject: contracts
subject: institutional development
subject: Costa Rica
subject: pepper

description: The small-scale pepper producers in the El Roble settlement Costa Rica face a monopsonistic market. Only one processing firm is buying the fresh pepper bunches. The processor has all bargaining power to decide on the price paid to the farmers and the quality selection criteria. The rejection rates are high, which is why farmers decided to market their pepper collectively. They started organizing the selection and transport of pepper and entered into group contracts with the firm. We use a non-linear integer simulation model to predict the price level and contractual form (individual or group contracts) which maximises the income of the firm and farmers under three conditions, namely, monopsony (firm holds all bargaining power), monopoly (producers hold all bargaining power in a group contract), and joint profit maximisation (firm and producers have equal bargaining power in the group contract). Our results show that in all scenarios a group contract is chosen for the high supply season, whereas individual contracts are chosen only in the low supply season assuming joint profit maximisation. The major outcome of this study is that when transaction costs are taken into account, and under high frequency of transaction, the firm would benefit from bulking the contracts and procurement of inputs even when this would decrease its bargaining power.
A distance-based loss for smooth and continuous skin layer segmentation in optoacoustic images
Creators: name: Gerl, Stefan
name: Paetzold, Johannes C.
name: He, Hailong
name: Ezhov, Ivan
name: Shit, Suprosanna
name: Kofler, Florian
name: Bayat, Amirhossein
name: Tetteh, Giles
name: Ntziachristos, Vasilis
name: Menze, Bjoern
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.1; J.3

description: Raster-scan optoacoustic mesoscopy (RSOM) is a powerful, non-invasive optical imaging technique for functional, anatomical, and molecular skin and tissue analysis. However, both the manual and the automated analysis of such images are challenging, because the RSOM images have very low contrast, poor signal to noise ratio, and systematic overlaps between the absorption spectra of melanin and hemoglobin. Nonetheless, the segmentation of the epidermis layer is a crucial step for many downstream medical and diagnostic tasks, such as vessel segmentation or monitoring of cancer progression. We propose a novel, shape-specific loss function that overcomes discontinuous segmentations and achieves smooth segmentation surfaces while preserving the same volumetric Dice and IoU. Further, we validate our epidermis segmentation through the sensitivity of vessel segmentation. We found a 20 $\%$ improvement in Dice for vessel segmentation tasks when the epidermis mask is provided as additional information to the vessel segmentation network.
description: Accepted at International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI) 2020
Additional file 2 of Quantitative-enhancer-FACS-seq (QeFS) reveals epistatic interactions among motifs within transcriptional enhancers in developing Drosophila tissue
Creators: name: Waters, Colin T.
name: Gisselbrecht, Stephen S.
name: Sytnikova, Yuliya A.
name: Cafarelli, Tiziana M.
name: Hill, David E.
name: Bulyk, Martha L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplemental Methods and Tables S1 and S2.
Shepherd's Dilemma
Creators: name: Sheriff, Glenn
name: Osgood, Daniel E.
name: Sheriff, Glenn
name: Osgood, Daniel E.
Publisher: name: Unknown
Year: 2005
Subjects: Livestock Production/Industries

description: Recent outbreaks of Rift Valley Fever in sheep have led to boycotts of African livestock by Middle Eastern importers. To normalize trade, attempts have been made to apply new livestock forecasting and monitoring technologies. In this process, producers have exhibited a resistance in revealing livestock health information, a resistance that could jeopardize the information system and lead to further boycotts. We investigate the incentives governing this problem and model the most fundamental contract issues, those concerning reputation and credibility. Equilibrium contracts require that the buyer compensate the producer for private information to address the shepherd's dilemma of concealing livestock information (and facing continued boycotts) or revealing the information and being blacklisted.
Physico-thermal and geochemical behavior and alteration of the Au indicator gangue hydrothermal quartz at the Kubi Gold Ore Deposits
Creators: name: Nzulu, Gabriel K.
name: Rogström, Lina
name: Lu, Jun
name: Högberg, Hans
name: Eklund, Per
name: Hultman, Lars
name: Magnuson, Martin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Geophysics (physics.geo-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Altered and gangue quartz in hydrothermal veins from the Kubi Gold deposit in Dunkwa on Offin in the central region of Ghana are investigated for possible Au-associated indicator minerals and to provide the understanding and increase the knowledge of the mineral hosting and alteration processes in quartz. X-ray diffraction, air annealing furnace, differential scanning calorimetry, energy dispersive X-ray spectroscopy, and transmission electron microscopy have been applied on different quartz types outcropping from surface and bedrocks at the Kubi Gold Mining to reveal the material properties at different temperatures. From the diffraction results of the fresh and annealed quartz samples, we find that the samples contain indicator and the impurity minerals iron disulfide, biotite, titanium oxide, and magnetite. These minerals, under oxidation process between 574-1400 °C temperatures experienced hematite alterations and a transformation from α-quartz to \b{eta}-quartz and further to cristobalite as observed from the calorimetry scans for hydrothermally exposed materials. The energy dispersive spectroscopy revealed elemental components of Fe, S, Mg, K, Al, Ti, Na, Si, O, and Ca contained in the samples, and these are attributed to the impurity phase minerals observed in the diffraction. The findings also suggest that during the hydrothermal flow regime, impurity minerals and metals can be trapped by voids and faults. Under favorable temperature conditions, the trapped minerals can be altered to change color at different depositional stages by oxidation and reduction processes leading to hematite alteration which is a useful indicator mineral in mineral exploration.
description: 25 pages, 8 figures
Superalgebras of Dirac operators on manifolds with special Killing-Yano tensors
Creators: name: Cotăescu, Ion I.
name: Visinescu, Mihai
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We present the properties of new Dirac-type operators generated by real or complex-valued special Killing-Yano tensors that are covariantly constant and represent roots of the metric tensor. In the real case these are just the so called complex or hyper-complex structures of the K\" ahlerian manifolds. Such a Killing-Yano tensor produces simultaneously a Dirac-type operator and the generator of a one-parameter Lie group connecting this operator with the standard Dirac one. In this way the Dirac operators are related among themselves through continuous transformations associated with specific discrete ones. We show that the group of these continuous transformations can be only U(1) or SU(2). It is pointed out that the Dirac and Dirac-type operators can form N=4 superalgebras whose automorphisms combine isometries with the SU(2) transformation generated by the Killing-Yano tensors. As an example we study the automorphisms of the superalgebras of Dirac operators on Minkowski spacetime.
description: 35 pages
Additional file 2 of Social participation is an important health behaviour for health and quality of life among chronically ill older Chinese people
Creators: name: Feng, Zeyun
name: Cramm, Jane Murray
name: Nieboer, Anna Petra
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Eight-item World Health Organization quality of life measure (WHOQoL).
Probing a new decay of vector-like top partner mediated by heavy Majorana neutrino via single production
Creators: name: Zhou, Hang
name: Liu, Ning
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models beyond the Standard Model have been proposed to simultaneously solve the problems of naturalness and neutrino mass, in which heavy Majorana neutrinos and vector-like top partners are usually predicted. A new decay channel of the top partner mediated by the heavy Majorana neutrino can thus appear: $T\to b\,W^{+}\to b\,\ell^{+}\ell^{+}q\bar{q'}$. We study in this paper the observability of this decay process through single production of the top partner at the 14 TeV LHC: $pp\to T/\bar{T}$+jets$\to b/\bar{b}+μ^{\pm}μ^{\pm}$+jets. $2σ$ exclusion bounds on the top partner mass and mixing parameters are given by Monte-Carlo simulation, which surpass those from the search through VLT pair production in the mass range of $m_{T}>1.3$ TeV.
description: 16 pages, 3 figures, 1 table; Accepted by Physical Review D. arXiv admin note: text overlap with arXiv:2003.09199
LHC and VLHC Based ep Colliders: E-Linac vs e-Ring
Creators: name: Gladilin, L.
name: Karadeniz, H.
name: Recepoglu, E.
name: Sultansoy, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Linac-ring analogues of the LHC and VLHC based standard type ep collider proposals are discussed. It is shown that sufficiently high luminosities can be obtained with TESLA-like linacs, whereas essential modifications are required for CLIC technology. The physics search potential of proposed ep colliders is demonstrated using pair production of heavy quarks as an example.
description: 14 pages, 8 figures, 6 tables
Model-based fit procedure for power-law-like spectra
Creators: name: Milotti, Edoardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: $1/f^α$ noises are ubiquitous and affect many measurements. These noises are both a nuisance and a peculiarity of several physical systems; in dielectrics, glasses and networked liquids it is very common to study this noise to gather useful information. Sometimes it happens that the noise has a power-law shape only in a certain frequency range, and contains other important features, that are however difficult to study because simple fits often fail. Here I propose a model-based fit procedure that performs well on spectra obtained in a molecular dynamics simulation.
description: 12 postscript figures, submitted to J. Comp. Phys
Estimating the Impact of Voluntary Labeling of Trans Fats on the Market Demand for Processed Foods: A Nested PIGLOG Model Approach
Creators: name: Vickner, Steven S.
name: Vickner, Steven S.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This paper estimates a nested PIGLOG demand system to assess the impact of voluntary labeling of trans fats on the market demand for processed foods.
title: Sea Bean Farms: Navigating the Tides of Sustainable Innovation
Creators: name: Delisa, John
name: Mahendran, Praveen
name: McKenzie, Hillary
Publisher: name: University of Michigan
Year: 2025
Subjects: subject: Entrepreneurship
subject: Agritech
subject: Venture Capital
subject: Start-Up
subject: Natural Resources and Environment
subject: Science

description: Craig Adams, the CEO of Sea Bean Farms, sat at his desk overlooking Sea Bean Farms' facility, contemplating the uncharted waters ahead. It was late 2022, and Sea Bean Farms, a pioneering indoor saltwater vertical farm founded by the visionary Daniel Edwards, found itself at a critical juncture. The company's vision was bold: to revolutionize food production by cultivating nutritious, salt-tolerant crops, like sea beans, while actively contributing to the restoration of fragile coastal ecosystems. But the path to fulfilling this vision was fraught with challenges. Financial pressures were mounting; Sea Bean Farms’ runway—the amount of time a company can operate before running out of cash—was dwindling rapidly, with a mere six months left. Sea Bean Farms’ product portfolio, while showcasing the company’s innovative spirit, was also a source of strategic tension. Each product represented a different market, a different challenge, and a different potential for growth. The team was divided on which path to prioritize, strategic alignment was elusive, and the post-pandemic economic landscape cast a long shadow over fundraising efforts. A decision had to be made, and soon. Not only to secure the company's future but to maintain the morale of their dedicated team and avoid painful cuts. Adams, a seasoned business leader brought in by Edwards to help navigate these challenges, faced a crucial board meeting. He needed to present a clear, compelling vision for the future, and central to that vision was a decision: which product and go-to-market strategy should Sea Bean Farms have prioritized to secure the company's future and attract investors? This decision would shape Sea Bean Farms' trajectory. Each product – fresh sea beans, dried sea beans, premium sea salt, and bagasse – represented a different market, a different set of challenges, and a different potential for growth. Adams needed to analyze these options, considering market demand, production capacity, competitive landscape, and financial viability, to chart a course that would convince the board and secure the company's future.
EXAMINING THE RELATIONSHIP BETWEEN SPRAWL AND NEIGHBORHOOD SOCIAL CONFLICTS: PRELIMINARY RESULTS
Creators: name: Bukenya, James O.
name: Branch, Ericka
name: Wilson, Constance
name: Bukenya, James O.
name: Branch, Ericka
name: Wilson, Constance
Publisher: name: Unknown
Year: 2005
Subjects: Institutional and Behavioral Economics

description: The objective of the paper is to examine the relationship between sprawl and neighborhood social conflicts between non-farm residents and farmers in north Alabama. To accomplish the objective, the paper employed a probit and ordinal probit regression models and analyzed 2000 census data and 2004 data from the multi-county survey of farmers in areas where sprawl has been identified to be a problem. The findings shed some light to the ongoing social conflict between non-farm residents and farmers in north Alabama.
Suppression of stimulated Brillouin scattering in analog CATV transmission systems
Creators: name: Jez, David Robert
Publisher: name: University of British Columbia
Year: 2009

description: This thesis presents a systematic investigation of stimulated Brillouin scattering (SBS) in analog fiber-optic cable-television (CATV) transmission systems. To this end, the author has designed and built a high-bandwidth time-resolved chirp measurement system used to characterize the CATV transmitter. The complex average electric field and corresponding optical spectrum can be obtained using this system. From this, the relationship between SBS suppression and CATV transmitter characteristics is examined. We show that conventional SBS suppression theory breaks down for the high levels commonly used in optical CATV systems. A more suitable approach based on transmitter power and chirp measurement and detailed spectral analysis is demonstrated for two 1550nm distributed feedback (DFB) lasers. This new measurement technique can determine the level of SBS suppression in optical fiber over a much wider measurement range compared to conventional techniques. This makes it ideal for the development and characterization of enhanced SBS suppression schemes. Using this approach, we investigated a variety of two-tone suppression schemes using a combination of direct laser and external phase dithering. Two-tone dithering is shown to be more effective at suppressing SBS than single-tone dithering. The best suppression scheme presently feasible is pure two-tone phase dithering at a frequency ratio of 3:2, generating an SBS threshold of 21.4dBm and requiring an RF bandwidth of only 3.9GHz. This level of suppression is 3.4dB higher than what has been previously reported. Applying this suppression technique to an 80-channel CATV system we show that self-phase modulation (SPM) becomes the dominant nonlinearity. The interaction of SPM with fiber dispersion degrades the CSO distortion to unacceptable levels. We discuss ways of overcoming this.
On viscosity, conduction and sound waves in the intracluster medium
Creators: name: Fabian, A. C.
name: Reynolds, C. S.
name: Taylor, G. B.
name: Dunn, R. J. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent X-ray and optical observations of the Perseus cluster indicate that the viscous and conductive dissipation of sound waves is the mechanism responsible for heating the intracluster medium and thus balancing radiative cooling of cluster cores. We discuss this mechanism more generally and show how the specific heating and cooling rates vary with temperature and radius. It appears that the heating mechanism is most effective above 10^7K, which allows for radiative cooling to proceed within normal galaxy formation but will stifle the growth of very massive galaxies. The scaling of the wavelength of sound waves with cluster temperature and feedback in the system are investigated.
description: 5 pages, 4 figures, MNRAS accepted
Additional file 5 of Quantitative-enhancer-FACS-seq (QeFS) reveals epistatic interactions among motifs within transcriptional enhancers in developing Drosophila tissue
Creators: name: Waters, Colin T.
name: Gisselbrecht, Stephen S.
name: Sytnikova, Yuliya A.
name: Cafarelli, Tiziana M.
name: Hill, David E.
name: Bulyk, Martha L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Peer review history.
Performance of the CMS Pixel Detector at an upgraded LHC
Creators: name: Horisberger, R.
name: Kotlinski, D.
name: Rohe, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The CMS experiment will include a pixel detector for pattern recognition and vertexing. It will consist of three barrel layers and two endcaps on each side, providing three space-points up to a pseudoraditity of 2.1. Taking into account the expected limitations of its performance in the LHC environment an 8-9 layer pixel detector for an upgraded LHC is discussed.
description: Contribution to the 10th European Symposium on Semiconductor Detectors, June 12 - 16, 2005 in Wildbad Kreuth, Germany. 6 pages, 4 figures, 1 table. Referee's comments implemented
A curiously cubulated group
Creators: name: Jankiewicz, Kasia
name: Wise, Daniel T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F65

description: We construct a finitely generated 2-dimensional group that acts properly on a locally finite CAT(0) cube complex but does not act properly on a finite dimensional CAT(0) cube complex.
description: 3 pages, to appear in Geom. Ded
Using Nielsen Homescan Data and Complex Design Techniques to Analyze Convenience Food Expenditures
Creators: name: Harris, James Michael
name: Harris, James Michael
Publisher: name: Unknown
Year: 2005
Subjects: Research Methods/ Statistical Methods

description: This paper looks at the A.C. Nielsen Homescan panel data, the sampling procedure, some of the issues associated with its use, and presents an expenditure analysis of ready foods based on the panel data. Complex survey design techniques are used to produce population estimates and statistics since complex designs can create potential problems for ordinary estimation techniques.
Additional file 1 of The association between nutrient intake, nutritional status and physical function of community-dwelling ethnically diverse older adults
Creators: name: Asamane, Evans A.
name: Greig, Carolyn A.
name: Thompson, Janice L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
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

description: Additional file 1. Bespoke socio-demographic questionnaire.
Habitat and open space at risk and the prioritization of conservation easements
Creators: name: Newburn, David A.
name: Berck, Peter
name: Merenlender, Adina
name: Newburn, David A.
name: Berck, Peter
name: Merenlender, Adina
Publisher: name: Unknown
Year: 2005
Subjects: Environmental Economics and Policy

description: Funds available to purchase land and easements for conservation purposes are limited. This article provides a targeting strategy for protecting multiple environmental benefits that includes heterogeneity in land costs and probability of land-use conversion, by incorporating spatially explicit land-use change and hedonic price models. This strategy is compared to two alternative strategies that omit either land cost or conversion threat. Based on dynamic programming and Monte Carlo simulations with alternating periods of conservation and development, we demonstrate that the positive correlation between land costs and probability of land-use conversion affects targeting efficiency using parcel data from Sonoma County, California.
Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A minimal extension of the Standard Model is proposed, where the observed left-handed neutrinos obtain naturally small Majorana masses from a one-loop radiative seesaw mechanism. This model has two candidates (one bosonic and one fermionic) for the dark matter of the Universe. It has a very simple structure and should be verifiable in forthcoming experiments at the Large Hadron Collider.
description: 8 pages, 1 figure
41. The age of our Milky Way Galaxy
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2021

description: Accurate distances out to 2000 parsec are yielding large samples of stars from our Galaxy's halo and from its thick disk populations. Their strikingly similar ages, from early in the life of the Universe, point to a common origin in which an orbiting galaxy merged with our own more massive progenitor.
Exclusive Decays of the Doubly Heavy Baryon $Ξ_{bc}$
Creators: name: Luchinsky, A. V.
name: Likhoded, A. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Exclusive decays of the $Ξ_{bc}^+$ with light mesons production, $Ξ_{bc}^+\toΞ_{cc}^{++}\mathcal{R}$ are analyzed. In the framework of the factorization model the matrix elements of the considered reactions are written as a product of $Ξ_{bc}\toΞ_{cc}W$ and $W\to\mathcal{R}$ transition amplitudes. As a result theoretical and experimental investigation of these decays allow us to test the physics of heavy and light quarks' sectors. Presented are the branching fractions of these reactions, as well as the distributions over the invariant mass of the light system and some other kinematical variables. Our calculations show that the probabilities of the considered reactions are high enough, so presented results could help with observation of yet unseen $Ξ_{bc}$ baryon.
description: 17 pages, 10 figures. Some references are added in comparison with the previous version. Accepted for publication in Phys.Rev.D
Recent results on Pre-main sequence delta Scuti stars
Creators: name: Ripepi, V.
name: Marconi, M.
name: Palla, F.
name: Bernabei, S.
name: Ruoppo, A.
name: Cusano, F.
name: Alcala', J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Intermediate mass Pre-main sequence stars (1.5 $M_{\odot}< M < 5M_{\odot}$) cross the instability strip on their way to the main sequence. They are therefore expected to be pulsating in a similar way as the $δ$ Scuti stars. In this contribution we present the status of the observational studies of pulsations in these stars with special emphasis on recent results from our group. The prospects for future investigations of these objects from the ground and from space are discussed.
description: 5 pages, 4 figure, to appear in the proceedings of the Workshop "Stellar pulsation and evolution", 2005. Monte Porzio Catone, Italy. Eds.: A. R. Walker and G. Bono
Additional file 1 of The impact of relative hypotension on acute kidney injury progression after cardiac surgery: a multicenter retrospective cohort study
Creators: name: Kotani, Yuki
name: Yoshida, Takuo
name: Kumasawa, Junji
name: Kamei, Jun
name: Taguchi, Akihisa
name: Kido, Koji
name: Yamaguchi, Naoki
name: Kariya, Takayuki
name: Nakasone, Masato
name: Mikami, Noriko
name: Koga, Takahiro
name: Nakayama, Izumi
name: Shibata, Mami
name: Yoshida, Tomonao
name: Nashiki, Hiroshi
name: Karatsu, Shinsuke
name: Nogi, Kazutaka
name: Tokuhira, Natsuko
name: Izawa, Junichi
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy

description: Additional file 1: Table S1. Data collection and definitions of variables and outcomes. Table S2. The protocol to estimate preoperative central venous pressure. Table S3. Additional information on baseline characteristics and perioperative management. Table S4. Multivariable logistic regression analyses for acute kidney injury progression between 24 and 72 h after intensive care unit admission. Table S5. Sensitivity analyses for acute kidney injury progression between 24 and 72 h after intensive care unit admission. Figure S1. Details of data collection. Figure S2. Patient flow diagram. Figure S3. Achieved mean arterial pressure (a) and mean arterial pressure-deficit (b) during the first 24 h after intensive care unit admission.
Explaining the Allocation of Bilateral and Multilateral Environmental Aid to Developing Countries
Creators: name: Hicks, Robert L.
name: Parks, Bradley C.
name: Tierney, Michael J.
name: Hicks, Robert L.
name: Parks, Bradley C.
name: Tierney, Michael J.
Publisher: name: Unknown
Year: 2005
Subjects: International Development

description: In this paper we examine how international development assistance for environmental purposes is allocated to developing countries. In particular, we investigate whether there are patterned differences between environmental aid for international public goods projects versus environmental projects having more localized impacts. We empirically investigate these questions using project project level development assistance data.