cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Decision Support for Economic and Environmental Impact of Tractor Guidance on Small Crop and Livestock Farms
Creators: name: Lindsay, Karen
name: Popp, Michael
name: Ashworth, Amanda
name: Owens, Phillip
name: Lindsay, Karen
name: Popp, Michael
name: Ashworth, Amanda
name: Owens, Phillip
Publisher: name: Unknown
Year: 2018
Subjects: subject: Farm Management
subject: Tractor guidance
subject: Breakeven acreage
subject: Sensitivity analysis
subject: Decision Support Software

description: The Tractor Guidance Analysis Model (TGA) was developed to assist small-scale crop and livestock producers, consultants, and extension personnel with analyzing the adoption of auto-steer tractor guidance to improve yields, reduce input use, extend workdays, and thereby enhance the efficiency of machinery and tractor operators. Using the Microsoft Excel® software platform, TGA utilizes default efficiency gain measurements observed at the USDA ARS Booneville Small Farm Research center and/or existing literature to provide a decision-support tool that performs partial budgeting and breakeven analyses for user-specified farm operations. For example, is the decision to invest in less accurate technology at a lower cost more economical than expensive technology with better accuracy? How sensitive are feasibility results to purported efficiency gains when field attributes such as slope and field shape irregularity change? At what level of annual use will the technology pay off with changeable equipment when growing different field crops, managing weeds on, and/or establishing pasture? This automated decision-support software provides user flexibility for operation-specific details and tracks technology-driven changes in fertilizer, fuel, seed, labor, and chemical inputs to both estimate the profitability of tractor guidance investment, the breakeven annual use needed to make the investment feasible, and the potential environmental impact.
HST Observations of the White Dwarf Cooling Sequence of M4
Creators: name: Hansen, Brad
name: Richer, Harvey
name: Fahlman, Greg
name: Stetson, Peter
name: Brewer, James
name: Currie, Thayne
name: Gibson, Brad
name: Ibata, Rodrigo
name: Rich, R. Michael
name: Shara, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate in detail the white dwarf cooling sequence of the globular cluster Messier 4. In particular we study the influence of various systematic uncertainties, both observational and theoretical, on the determination of the cluster age from the white dwarf cooling sequence. These include uncertainties in the distance to the cluster and the extinction along the line of sight, as well as the white dwarf mass, envelope and core compositions and the white dwarf --main sequence mass relation. We find that fitting to the full two-dimensional colour-magnitude diagram offers a more robust method for age determination than the traditional method of fitting the one-dimensional white dwarf luminosity function. After taking into account the various uncertainties, we find a best fit age of 12.1 Gyr, with a 95% lower limit of 10.3 Gyr. We also perform fits using two other sets of cooling models from the literature. The models of Chabrier et al (2000) yield an encouragingly similar result, although the models of Salaris et al (2000) do not provide as good a fit. Our results support our previous determination of a delay between the formation of the Galactic halo and the onset of star formation in the Galactic disk.
description: many pages, 43 postscript figures, submitted to ApJ
Effects of the Environment on the Properties of Seyfert Galaxies
Creators: name: Maia, Marcio A. G.
name: Willmer, Christopher N. A.
name: Rossetto, Bruno M.
name: Machado, Rodolfo S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We identify 175 Seyfert galaxies from the Southern Sky Redshift Survey - SSRS2. We use the entire SSRS2 catalog to investigate the correlation between the presence of AGN with host environment. The AGN phenomenon is more strongly correlated with the internal host properties, than with the external environment. In particular, we find that Seyferts reside in more luminous galaxies, and are twice as frequent in barred galaxies and systems showing sign of advanced merger condition, when compared to a control sample.
description: 4 pages, 3 figs, 1 tables, to appear in the proceedings of "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei", IAU 222, eds. T. Storchi Bergmann, L.C. Ho, and H.R. Schmitt
Geometrical Aspects of An Abelian (2,0) Action
Creators: name: Andriolo, E.
name: Lambert, N.
name: Papageorgakis, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explore various geometrical aspects of an action for six-dimensional chiral 2-forms based on the formalism of 1903.12196. We elucidate the coupling to general backgrounds and construct the full supersymmetric completion to an abelian (2,0) superconformal lagrangian including matter. We investigate the non-standard diffeomorphism properties of the fields and their relation to the hamiltonian formulation. We also test the action by considering compactifications on a circle, K3 and a Riemann surface. The results are consistent with expectations for an action describing the low-energy physics of an M5-brane in M-theory.
description: 37 pages; v2: typos corrected and references added
Covariant Fluid Dynamics: a Long Wave-Length Approximation
Creators: name: Bruni, Marco
name: Sopuerta, Carlos F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we consider the Long-Wavelength Approximation Scheme (LWAS) in the framework of the covariant fluid approach to general relativistic dynamics, specializing to the particular case of irrotational dust matter. We discuss the dynamics of these models during the approach to any spacelike singularity where a BKL-type evolution is expected, studying the validity of this approximation scheme and the role of the magnetic part of the Weyl tensor, $H_{ab}$. Our analytic results confirm a previous numerical analysis: it is $H_{ab}$ that destroys the pure Kasner-like approach to the singularity and eventually produces the bounce to another Kasner phase. Expanding regions evolve as separate universes where inhomogeneities and anisotropies die away.
description: 18 pages. LaTeX2e. IOP Style
Understanding the Issues Faced by Tennessee Farmers in Adopting Organic Practices
Understanding the Issues Faced by Tennessee Farmers in Adopting Organic Practices
Creators: name: Liyanage, Kumuditha Hikkaduwa Epa
name: Bhavsar, Hiren A
name: Liyanage, Kumuditha Hikkaduwa Epa
name: Bhavsar, Hiren A
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: organic practices
subject: issues
subject: fruit and vegetables

description: The demand for the organic food has increased over the last few years in the USA but organic crop production is not increasing proportionally. In Tennessee numbers of certified organic farms are very low. This study attempts to identify and analyze fruit and vegetable farmers’ perceptions towards organic farming in Tennessee. Two hundred and fifty conventional and organic farmers were randomly selected from the Pick Tennessee products database. From the responses of 116 farmers revealed that 65% of respondents are following organic farming practices. Also, all the eight variables selected as farmers’ perceptions towards organic farming were affected growing practices. There were significant relationships (p≤ 0.05) between some growing practices and perceptions. Most of the organic farmers have identified high cost, labor intensity, pest and disease problems and certification process as challenges to continue organic farming. Conventional farmers have identified high cost of production, time consuming as some of major barriers to enter organic farming. Factors such as producing vegetables, farming experience, hours work per week on farm, gender, annual cash farm income contributed significantly to the adoption of organic farming.
Flat manifolds, harmonic spinors, and eta invariants
Creators: name: Sadowski, M.
name: Szczepanski, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 58J28; 53C27; 20H25

description: The aim of this paper is to calculate the eta invariants and the dimensions of the spaces of harmonic spinors of an infinite family of closed flat manifolds. It consits of some flat manifolds M with cyclic holonomy groups.
description: 16 pages; A new presentation and added corollaries
Dilocarcinus dentatus
Creators: name: Rodríguez, G.
name: López, B.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Trichodactylidae
Dilocarcinus
Dilocarcinus dentatus

description: Dilocarcinus dentatus (Randall, 1839)
 Material examined
Mitan, near Nariva Swamp, Trinidad, 27 March 1980, coll. A. E. Esteves, five males, cl 29.1, 30.8, 31.5, 31.8 and 32.3 mm, cb 36.4, 37.5, 39.6, 39.9 and 41.3 mm (IVIC 734). Hato Terecay, 16 km N of El Manteco, Bolivar State, Venezuela, 7 June 1977, coll. S. Gorzula, one male, cl 30.8 mm, cb 37.3 (IVIC 720). Caño Onoto, near El Callao, Bolivar State, Venezuela, one male, cl 33.7 mm, cb 41.7 (IVIC 722). Laguna Campoma, Sucre State, Venezuela, one male, cl 41.6 mm, cb 51.8 (IVIC 732). Hato Piritu, Calabozo, Aragua State, Venezuela, coll. F. Tamayo, January 1963, one male, cl 31.2 mm, cb 39.3 mm (IVIC 724). Naguanagua, Carabobo State, Venezuela, coll. F. Rumbos, 7 November 1965, one male, cl 30.3 mm, cb 39.6 mm (IVIC 729).
 Remarks
 Pretzmann (1968b) described the subspecies Dilocarcinus dentatus trinidadensis based on a male (cl. 35 mm) from Trinidad, for which he gives the following characters: carapace narrower, flatter; 10 blunt lateral teeth; fingers of larger chela slightly gaping; dactylus shorter; gonopod wider, more recurved; colour dark brown. We compared five male specimens from Mitan, near Nariva Swamp, Trinidad, with five male specimens from several different localities on the nearby mainland of Venezuela, recorded under Material examined, taking the degree of narrowness of the carapace as the ratio cb / cl, its degree of flatness as the ratio cb / ch, and the relative length of the dactylus as the proportion of the dactylus to the length of the ventral border of the chela (table 1). A larger variability of these characters was observed in Venezuelan specimens; the range of variation of Trinidad specimens was included within the range of variation of Venezuelan specimens. The number of lateral teeth is 10 in both groups, except for one mainland specimen which has nine on the left side, and a Trinidadian specimen which has 11 teeth on the right side. No differences could be noted in the morphology of gonopods in both groups. The colour of specimens (preserved in alcohol) is very variable, from grey to brown, as already observed by Rodríguez (1992).
description: Published as part of Rodríguez, G. & López, B., 2003, Insular species of Neotropical freshwater crabs (Crustacea: Brachyura), pp. 2599-2614 in Journal of Natural History 37 (21) on page 2600
Suppression of radiation loss in high kinetic inductance superconducting co-planar waveguides
Creators: name: Hähnle, S.
name: Marrewijk, N. v.
name: Endo, A.
name: Karatsu, K.
name: Thoen, D. J.
name: Murugesan, V.
name: Baselmans, J. J. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a novel lab-on-chip technique to measure the very low losses in superconducting transmission lines at (sub-) mm wavelengths. The chips consist of a 100 nm thick NbTiN Coplanar Waveguide (CPW) Fabry Perot (FP) resonator, coupled on one side to an antenna and on the other side to a Microwave Kinetic Inductance detector. Using a single frequency radiation source allows us to measure the frequency response of the FP around 350 GHz and deduce its losses. We show that the loss is dominated by radiation loss inside the CPW line that forms the FP and that it decreases with decreasing line width and increasing kinetic inductance as expected. The results can be quantitatively understood using SONNET simulations. The lowest loss is observed for a CPW with a total width of $6\ \mathrm{μm}$ and corresponds to a Q-factor of $\approx15,000$.
description: 5 pages + appendix. Accepted for publication in APL. Author's accepted version
title: The Expatriate's Experience in China: An Exploration of the Expatriate's Satisfaction in Their International Organization Setting
Creators: name: Davidson, Ross Adam Grieve
Publisher: name: The Open University
Year: 2012

description: This research wanted to know why expatriates left their assignments in China. Since finding expatriates who had quit their international assignment was impossible, to understand why they left, this research used satisfaction as a proxy and asked expatriates ‘what affected their satisfaction in their international organization setting. ’ By understanding what constructs differentiated satisfied and dissatisfied expatriates in their organization setting, insights maybe offered about why the expatriate leaves. To achieve this, this research drew upon the Framework of International Adjustment and ASA/PO fit, two frameworks that propose how a person adjusts or fits into their organization. Much of the research has described the expatriate’s adjustment or fit in the organization in reference to culture. The perspective of this research was culture is a factor; however, it is the person interacting with their organization which may offer insights. This research suggested underpinning both frameworks was social cognition; that is, the person’s interpretation of their satisfaction in the international organization was the focus. A unique mixed approach consisting of a satisfaction/intention to quit survey, causal mapping, and a semi-structured interview was used. Upon completion of the exploration of what expatriate’s identified as important to their satisfaction, this research addressed the second objective. Were the two frameworks describing similar phenomena except from different perspectives? If so, could these frameworks be wed? Findings from this research suggest the expatriate is often caught between two incompatible solitudes, the home office expectations and the abilities of the China operations, to deliver. Although, most expatriates were satisfied with their situation, what was described in detail is dissatisfaction was often a result of the home office falling short in supporting the expatriate in the field. Interrogation of the two frameworks suggests the frameworks may in fact be presenting similar processes except from different research perspectives. Finally, this research suggests employing mixed methods is a valuable tool in the arsenal of the expatriate researcher. Employing this protocol has allowed their complex story to be revealed which may otherwise remain hidden.
Coriolis force-based instability of a shear-thinning microchannel flow
Creators: name: Sengupta, Saunak
name: Ghosh, Sukhendu
name: Chakraborty, Suman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Instability mechanism based on Coriolis force, on a rapidly rotating portable device handling shear thinning fluids such as blood, is of utmost importance for eventual detection of diseases by mixing with the suitable reagents. Motivated by this proposition, the present study renders a modal stability analysis of shear thinning fluids in a rotating microchannel modelled by the Carreau rheological law. When a microchannel is engraved a rotating compact disc (CD) based device, the centrifugal force acts as the driving force that actuates the flow and the Coriolis force enhances the mixing process in significantly short span by destabilizing the flow. An OrrSommerfeld-Squire analysis is performed to explore the role of these forces on the linear stability of rotating shear-thinning flow. Reported results on shear thinning flow with streamwise disturbances indicate that the critical Reynolds number for the flow transition with viscosity perturbation is nearly half of that of the critical value for the same without viscosity perturbation. In sharp contrast, the present analysis considering spanwise disturbances reveals that the critical Reynolds numbers with and without viscosity perturbation remain virtually unaltered under rotational effects. However, the viscosity variation has no significant influence on the Coriolis force-based instability. Numerical results confirm that a momentous destabilization is possible by aid of the Coriolis force via generating secondary flow inside the channel. Interestingly, the roll cells corresponding to the instabilities at lower time constants exhibit the existence of two distinct vortices, and the centre of the stronger one is essentially settled towards the unstable stratified region. Moreover, for a higher value of the time constant, only one vortex occupies the entire channel.
Chiral phase transition in a rotating sphere
Creators: name: Zhang, Zheng
name: Shi, Chao
name: Luo, Xiaofeng
name: Zong, Hong-Shi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the chiral phase transition of the two-flavor Nambu-Jona-Lasinio (NJL) model in a rotating sphere, which includes both rotation and finite size effects. We find that rotation leads to a suppression of the chiral condensate at a finite temperature, while its effects are smaller than the finite size effects. Our work can be helpful to study the effects relevant to rotation in heavy-ion collisions in a more realistic way.
Management Practices at the LFS Orchard Garden
Creators: name: Morgan, Andrea
name: Menzies, Kate
name: Moore, Katelyn
name: Morris, Shannon
name: Mou, Claire
name: Murphy, Carissa
name: Moskowitz, Jamie
name: Mok, Gordon
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Calculation of the biexciton shift in nanocrystals of inorganic perovskites
Creators: name: Nguyen, T. P. T.
name: Blundell, S. A.
name: Guet, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the shift in emission frequency of the trion and biexciton (relative to that of the single exciton) for nanocrystals (NCs) of inorganic perovskites CsPbBr3 and CsPbI3. The calculations use an envelope-function k.p model combined with self-consistent Hartree-Fock and a treatment of the intercarrier correlation energy in the lowest (second) order of many-body perturbation theory. The carriers in the trion and biexciton are assumed to have relaxed nonradiatively to the ground state at the band edge before emission occurs. The theoretical trion shifts for both CsPbBr3 and CsPbI3 are found to be in fair agreement with available experimental data, which include low-temperature single-dot measurements, though are perhaps systematically small by a factor of order 1.5, which can plausibly be explained by a combination of a slightly overestimated dielectric constant and omitted third- and higher-order terms in the correlation energy. Taking this level of agreement into account, we estimate that the ground-state biexciton shift for CsPbBr3 is a redshift of order 10-20 meV for NCs with an edge-length of 12 nm. This value is intermediate among the numerous high-temperature measurements on NCs of CsPbBr3, which vary from large redshifts of order 100 meV to blueshifts of several meV.
description: 12 pages, 4 figures
Agro-Climatic Data by County (ACDC): Methods and Data Generating Processes
Creators: name: Yun, Seong Do
name: Gramig, Benjamin M.
name: Yun, Seong Do
name: Gramig, Benjamin M.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Agro-Climatic Data by County
subject: Grid Cell Data
subject: Agricultural Mask
subject: Geospatial data processing
subject: gSSURGO
subject: PRISM
subject: NLCD

description: Due to the recent popularity of raster imagery data (high resolution grid cell data), the demand for weather, soil/land and related data for research and applied decision support is increasing rapidly. Agro-Climatic Data by County (ACDC) is designed to provide the most widely-used variables extracted from the most popular high resolution gridded data sources to end users of agro-climatic variables who may not be equipped to process large geospatial datasets from multiple publicly available sources that are provided in different data formats and spatial scales. Annual county level crop yield data in USDA NASS for 1981-2015 are provided for corn, soybeans, upland cotton and winter wheat yields, and customizable growing degree days (GDDs) and cumulative precipitation for two groups of months (March-August and April-October) to capture different growing season periods for the crops from the PRISM weather data. Soil characteristic data in gSSURGO are also included for each county in the data set. All weather and soil data are processed based using NLCD land cover/land use data to exclude data for land that is not being used for non-forestry agricultural uses. This paper explains the numerical and geocomputational methods and data generating processes employed in ACDC.
The Power of a Single Qubit: Two-way Quantum Finite Automata and the Word Problem
Creators: name: Remscrim, Zachary
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Complexity (cs.CC)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The two-way finite automaton with quantum and classical states (2QCFA), defined by Ambainis and Watrous, is a model of quantum computation whose quantum part is extremely limited; however, as they showed, 2QCFA are surprisingly powerful: a 2QCFA, with a single qubit, can recognize, with bounded error, the language $L_{eq}=\{a^m b^m :m \in \mathbb{N}\}$ in expected polynomial time and the language $L_{pal}=\{w \in \{a,b\}^*:w \text{ is a palindrome}\}$ in expected exponential time. We further demonstrate the power of 2QCFA by showing that they can recognize the word problems of many groups. In particular 2QCFA, with a single qubit and algebraic number transition amplitudes, can recognize, with bounded error, the word problem of any finitely generated virtually abelian group in expected polynomial time, as well as the word problems of a large class of linear groups in expected exponential time. This latter class (properly) includes all groups with context-free word problem. We also exhibit results for 2QCFA with any constant number of qubits. As a corollary, we obtain a direct improvement on the original Ambainis and Watrous result by showing that $L_{eq}$ can be recognized by a 2QCFA with better parameters. As a further corollary, we show that 2QCFA can recognize certain non-context-free languages in expected polynomial time. In a companion paper, we prove matching lower bounds, thereby showing that the class of languages recognizable with bounded error by a 2QCFA in expected $\mathit{subexponential}$ time is properly contained in the class of languages recognizable with bounded error by a 2QCFA in expected $\mathit{exponential}$ time.
description: To appear in ICALP 2020
title: Charlotte Smith: Political Novelist
Creators: name: Stroud, Brenda Diane
Publisher: name: The Open University
Year: 2012

description: This thesis is a comprehensive, chronological and synoptic study of political thought in the eleven novels of Charlotte Smith (1749-1806), published between 1788 and 1802. It traces the ways in which Smith incorporates topics which were the subject of political debate in the period immediately following the outbreak of the French Revolution into the framework of the courtship novel, and demonstrates her engagement with what was being said and written by polemicists in response to events in both France and England. By examining each of Smith’s novels in relation to a wide range of contemporary political writing, I show that she participated more continuously and closely in the political discourse of the 1790s than has been realised or documented. I also argue that her involvement with political discourse was an important factor in her development as an innovative and experimental novelist. As she questioned and challenged accepted political certainties, and was influenced by politically radical ideas, so her novels became increasingly experimental in form. Even in her pre-Revolutionary novels, Smith expressed dissatisfaction with the socio-political values endorsed by the conventions of courtship novels which commonly resolved with the heroine placed within a patriarchal family, married to a man of rank and living in an inherited landed property. The political battles of the 1790s were fought using topoi of patriarchal authority and patrilineal inheritance, which were seen by conservatives as vital to the preservation of the security and prosperity of the country. At a symbolic level these topoi mirrored the relationship between monarch and subject and the longevity and stability of constitution and state. Smith’s political alignment with radical reformers meant that the safe resolutions of her earlier novels were modified or jettisoned as her courtship narratives were inflected by this discourse and became the forums for political debate.
Adoption of Cover Crops in Soybean Production
Creators: name: Lee, Seungyub
name: McCann, Laura
name: Lee, Seungyub
name: McCann, Laura
Publisher: name: Unknown
Year: 2018
Subjects: subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: Land Economics/Use
subject: Resource /Energy Economics and Policy
subject: Adoption
subject: Cover crops
subject: Conservation
subject: Water quality

description: Using cover crops is beneficial not only for soil health but also for the environment, but many farmers have not adopted cover crops. We used a probit model with data on 1708 soybean producers from the 2012 USDA Agricultural Resource Management Survey to identify factors affecting adoption of cover crops. We found that perceptions of yield benefits were positively correlated with adoption, while concern about weeds was negatively correlated. Adoption varied by region. Educational efforts should focus on farmers’ perceptions and concerns about using cover crops, such as timing of seeding cover crops, especially for farmers in colder regions.
Advancements in Brain Cancer Detection Using Machine Learning-A Comprehensive Review.
Creators: name: Himel, Rabbi Hasan
name: Anando, Mohi Uddin
name: Adnan, Mehedi Hassan
name: Rahman, Anisur
name: Shawon, Ashadu Jaman
Publisher: name: Zenodo
Year: 2024

description: This comprehensive review analyzes 30 recent research papers on brain cancer detection. The study examines various models, datasets, and performance metrics to identify current trends and best practices in the field. Convolutional Neural Networks (CNNs) emerge as the dominant approach, consistently achieving high accuracies exceeding 95% in tumor detection and classification tasks. The Brain Tumor Segmentation (BRATS) dataset is identified as the most widely used and valuable resource for algorithm development and benchmarking. While CNNs lead in performance, the review also highlights the potential of hybrid models, ensemble methods, and optimized traditional algorithms. The paper discusses the challenges in standardizing evaluation across studies and the need for clinical validation. It concludes that machine learning, particularly deep learning approaches, shows great promise in augmenting clinical decision-making for brain cancer diagnosis, potentially improving early detection and treatment planning in neuro-oncology.
Hall effect and resistivity in underdoped cuprates
Creators: name: Alexandrov, A. S.
name: Zavaritsky, V. N.
name: Dzhumanov, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The behaviour of the Hall ratio $R_{H}(T)$ as a function of temperature is one of the most intriguing normal state properties of cuprate superconductors. One feature of all the data is a maximum of $R_{H}(T)$ in the normal state that broadens and shifts to temperatures well above $T_c$ with decreasing doping. We show that a model of preformed pairs-bipolarons provides a selfconsistent quantitative description of $R_{H}(T)$ together with in-plane resistivity and uniform magnetic susceptibility for a wide range of doping.
description: 4 pages, 2 figures, the model and fits were refined
Threshold resummed spectra in B ->Xu l nu decays in NLO (III)
Creators: name: Aglietti, Ugo
name: Ricciardi, Giulia
name: Ferrera, Giancarlo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We resum to next-to-leading order (NLO) the distribution in the light-cone momentum p+ = EX - |pX| and the spectrum in the electron energy, in the semileptonic decays B-> Xu l nu, where EX and pX are the total energy and three-momentum of the final hadron state Xu respectively. By expanding our formulas, we obtain the coefficients of all the infrared logarithms alpha^n L^k at order alpha^2 and at order alpha^3, with the exception of the alpha^3 L coefficient. We explicitly show that the relation between these semileptonic spectra and the hadron mass distribution in the radiative decay B -> Xs gamma is not a purely short distance one. By expanding our result for the p+ distribution and comparing it with the recent O(alpha^2 n_f) computation, we obtain an explicit and non trivial verification of our resummation scheme at the two-loop level. We also discuss the validity of the so-called Brodsky-Lepage-Mackenzie (BLM) scheme in the evaluation of the semileptonic spectra by comparing it with our results, finding that it is a reasonable approximation for the leading terms only. Finally, we show that long-distance phenomena, such as Fermi motion, are expected to have an effect on the electron spectrum smaller than on the hadron mass distribution.
description: 24 pages, no figures. Improved discussion on the BLM scheme
Tuning the stability of Electrochemical Interfaces by Electron Transfer reactions
Creators: name: Fraggedakis, Dimitrios
name: Bazant, Martin Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The morphology of interfaces is known to play fundamental role on the efficiency of energy-related applications, such light harvesting or ion intercalation. Altering the morphology on demand, however, is a very difficult task. Here, we show ways the morphology of interfaces can be tuned by driven electron transfer reactions. By using non-equilibrium thermodynamic stability theory, we uncover the operating conditions that alter the interfacial morphology. We apply the theory to ion intercalation and surface growth where electrochemical reactions are described using Butler-Volmer or coupled ion-electron transfer kinetics. The latter connects microscopic/quantum mechanical concepts with the morphology of electrochemical interfaces. Finally, we construct non-equilibrium phase diagrams in terms of the applied driving force (current/voltage) and discuss the importance of engineering the density of states of the electron donor in applications related to energy harvesting and storage, electrocatalysis and photocatalysis.
description: 10 pages, 6 figures
A Novel Approach for Single Image Super Resolution using Statistical Mathematical Model
Creators: name: Varghese, Dany
Publisher: name: figshare
Year: 2021
Subjects: subject: 80104 Computer Vision
subject: FOS: Computer and information sciences
subject: 80106 Image Processing

description: Images with high resolution are always a necessity in almost all image processing applications. .Super Resolution is a method in image processing to create High Resolution image from several or single low resolution image so that high spatial frequency information can be recovered. SR methods are applied on LR images in order to increase spatial resolution for a new image. The super resolution processing includes two main tasks: up-sampling of the image, removing degradations that arise during the image capture. In effect, the super-resolution process tries to generate the missing high frequency components. Applications may include HDTV, biological imaging etc. In this work we deal the problem of producing a HR image from a single low-resolution image using some statistical mathematical model. Performance of these algorithms was checked by using objective image quality criteria PSNR, MSSIM and compared with other existing methods
Multi-objective Optimal Reactive Power Dispatch of Power Systems by Combining Classification Based Multi-objective Evolutionary Algorithm and Integrated Decision Making
Creators: name: Zhang, Meng
name: Li, Yang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: For the purpose of addressing the multi-objective optimal reactive power dispatch (MORPD) problem, a two-step approach is proposed in this paper. First of all, to ensure the economy and security of the power system, the MORPD model aiming to minimize active power loss and voltage deviation is formulated. And then the two-step approach integrating decision-making into optimization is proposed to solve the model. Specifically speaking, the first step aims to seek the Pareto optimal solutions (POSs) with good distribution by using a multi-objective optimization (MOO) algorithm named classification and Pareto domination based multi-objective evolutionary algorithm (CPSMOEA). Furthermore, the reference Pareto-optimal front is generated to validate the Pareto front obtained using CPSMOEA; in the second step, integrated decision-making by combining fuzzy c-means algorithm (FCM) with grey relation projection method (GRP) aims to extract the best compromise solutions which reflect the preferences of decision-makers from the POSs. Based on the test results on the IEEE 30-bus and IEEE 118-bus test systems, it is demonstrated that the proposed approach not only manages to address the MORPD issue but also outperforms other commonly-used MOO algorithms including multi-objective particle swarm optimization (MOPSO), preference-inspired coevolutionary algorithm (PICEAg) and the third evolution step of generalized differential evolution (GDE3).
description: Accepted by IEEE Access
Exploring Ways to Lighten AMS Food and Beverage Department's Ecological Footprint
Creators: name: Damji, Alyssa
name: Dukowski, Janet
name: Eberhardt, Allyn
name: Elliott, Sarah
name: Fei, James
name: Ferguson, Alexandra
name: Fok, Nicole
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Solving the quantum non-linear Schrodinger equation with delta-type impurity
Creators: name: Caudrelier, V.
name: Mintchev, M.
name: Ragoucy, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B23, 81R50

description: We establish the exact solution of the nonlinear Schrodinger equation with a delta-function impurity, representing a point-like defect which reflects and transmits. We solve the problem both at the classical and the second quantized levels. In the quantum case the Zamolodchikov-Faddeev algebra, familiar from the case without impurities, is substituted by the recently discovered reflection-transmission (RT) algebra, which captures both particle-particle and particle-impurity interactions. The off-shell quantum solution is expressed in terms of the generators of the RT algebra and the exact scattering matrix of the theory is derived.
description: 31 pages; v2: proof in section 2.2 amended
Restaurants’ Willingness to Pay for Tennessee Certified Beef
Creators: name: McKay, Lettie
name: DeLong, Karen L.
name: Jensen, Kimberly L.
name: Griffith, Andrew P.
name: Boyer, Christopher N.
name: McKay, Lettie
name: DeLong, Karen L.
name: Jensen, Kimberly L.
name: Griffith, Andrew P.
name: Boyer, Christopher N.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Demand and Price Analysis
subject: Contingent Valuation
subject: Restaurant Survey
subject: Tennessee Certified Beef

description: Tennessee beef producers and consumers have shown interest in a Tennessee Certified Beef (TCB) Program. Restaurants serving local foods may serve as an important outlet for TCB but there is no knowledge on how restaurants perceive TCB and willingness to pay (WTP) for TCB. Therefore, this study examines restaurants’ WTP for TCB ground beef and sirloin steak. A telephone survey of 150 Tennessee restaurants that offer locally sourced foods and beef was conducted in which the primary decision maker was asked contingent valuation questions to determine their WTP for TCB. A probit model was used to determine the factors affecting restaurants’ decision to purchase TCB. Results show that the TCB price had a significant impact on restaurants’ decision to adopt TCB. Preliminary results indicate if restaurants were already sourcing beef directly from a producer, selling local foods, and offering beef with no hormones added, they were more likely to indicate they would purchase TCB ground beef. Restaurants were more likely to indicate they would purchase TCB sirloin steak if they already offered beef with no antibiotics administered, natural beef, local beef, and believed offering TCB would make the restaurant more profitable. This research provides recommendations on the premium producers could receive for a TCB product purchased by restaurants as well as the business attributes of restaurants interested in providing such a product.
Deducing the asymptotic normalization constant of the 2+ subthreshold state in 16O from 12C + alpha elastic scattering
Creators: name: Sparenberg, Jean-Marc
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: R-matrix analyses of the 12C + alpha elastic-scattering phase shifts deduced from a recent high-precision measurement of the differential cross sections are performed. The l=0 phase shifts constrain the R-matrix radius a around 5.85 fm, while the l=2 phase shifts lead to a strong constrain neither on a nor on the asymptotic normalization constant C of the 2+ subthreshold state (except for a loose upper limit). This contradicts previous R-matrix analyses of the 12C + alpha elastic scattering and explains the incompatibility between values of C obtained in these analyses.
description: 6 pages, 4 figures, proceedings of the 8th International Conference on Clustering Aspects of Nuclear Structure and Dynamics, Nara (Japan), November 24-29, 2003
D4.1 - Methodological  framework for supporting  and running the 10 Living  Labs
Creators: name: Wageningen University & Research
name: University of Almería
name: Instituut voor Landbouw en Visserijonderzoek
Publisher: name: Zenodo
Year: 2024

description: This deliverable presents the description of the methodological framework for how to set up, run, and monitor a Living Lab to co-create innovative Climate Smart solutions. Elements are: the approach how to analyze the situation & conditions of the LL, a strategy for dialogue with stakeholders to define the problem, a first selection of prioritized co-design tools and approaches and a description of how monitoring& evaluation willtake place and lessons will be shared among the 10 living labs. It is very comprehensive.
Frequency-Dependent Squeezed Vacuum Source for Broadband Quantum Noise Reduction in Advanced Gravitational-Wave Detectors
Creators: name: Zhao, Yuhang
name: Aritomi, Naoki
name: Capocasa, Eleonora
name: Leonardi, Matteo
name: Eisenmann, Marc
name: Guo, Yuefan
name: Polini, Eleonora
name: Tomura, Akihiro
name: Arai, Koji
name: Aso, Yoichi
name: Huang, Yao-Chin
name: Lee, Ray-Kuang
name: Lück, Harald
name: Miyakawa, Osamu
name: Prat, Pierre
name: Shoda, Ayaka
name: Tacca, Matteo
name: Takahashi, Ryutaro
name: Vahlbruch, Henning
name: Vardaro, Marco
name: Wu, Chien-Ming
name: Barsuglia, Matteo
name: Flaminio, Raffaele
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The astrophysical reach of current and future ground-based gravitational-wave detectors is mostly limited by quantum noise, induced by vacuum fluctuations entering the detector output port. The replacement of this ordinary vacuum field with a squeezed vacuum field has proven to be an effective strategy to mitigate such quantum noise and it is currently used in advanced detectors. However, current squeezing cannot improve the noise across the whole spectrum because of the Heisenberg uncertainty principle: when shot noise at high frequencies is reduced, radiation pressure at low frequencies is increased. A broadband quantum noise reduction is possible by using a more complex squeezing source, obtained by reflecting the squeezed vacuum off a Fabry-Perot cavity, known as filter cavity. Here we report the first demonstration of a frequency-dependent squeezed vacuum source able to reduce quantum noise of advanced gravitational-wave detectors in their whole observation bandwidth. The experiment uses a suspended 300-m-long filter cavity, similar to the one planned for KAGRA, Advanced Virgo and Advanced LIGO, and capable of inducing a rotation of the squeezing ellipse below 100 Hz.
Quantum Diffusion
Creators: name: Pushkarov, Dimitar I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Basic ideas and results which characterize quantum diffusion of defects in quantum crystals like solid helium as a new phenomenon are presented. Quantum effects in such media lead to a delocalization of point defects (vacancies, impurities etc.) and they turn into quasiparticles of a new type -- defectons, which are characterized not by their position in the crystal lattice but by their quasimomentum and dispersion law. Defecton-defecton and defecton-phonon scattering are considered and an interpolation formula for the diffusion coefficient valid in all interesting temperature and concentration regions is presented. A comparison with the experimental data is made. Some alternative points of view are discussed in detail and the inconsistency of the Kisvarsanyi-Sullivan theory is shown.
description: 14 pages, 8 figures
El supervisor como gestor del desempeño y el compromiso organizacional en las empresas multinacionales
Creators: name: Padín-Zamot, Gerardo
Publisher: name: figshare
Year: 2020
Subjects: subject: 150305 Human Resources Management
subject: FOS: Economics and business
subject: 200209 Multicultural, Intercultural and Cross-cultural Studies
subject: FOS: Other humanities

description: Las empresas multinacionales (EMN) trascienden las fronteras y llegan a países donde la diversidad cultural de los supervisores (expatriados) y los trabajadores (locales) es notable. En ocasiones, las diferencias son muy marcadas y obligan a los gerentes extranjeros a seguir estrategias que permitan a las empresas adaptarse, transformarse o redefinir sus políticas y prácticas de recursos humanos para obtener una mayor ventaja competitiva sostenible. El investigador Greene (2011) escribe: “Las organizaciones que deseen efectivamente atraer, retener, motivar y satisfacer a una fuerza laboral diversa y de alta calidad deben reconocer las diferencias culturales, respetarlas y conciliarlas”.
X-ray radiative transfer in full 3D with SKIRT
Creators: name: Vander Meulen, Bert
name: Camps, Peter
name: Stalevski, Marko
name: Baes, Maarten
Publisher: name: Zenodo
Year: 2022

description: Large amounts of gas and dust can be found in the central regions of most active galaxies. These ambient media play a crucial role as they provide the accretion reservoir powering active galactic nuclei (AGN) and reprocess the optical, UV and X-ray emission of the central engine. Here, we present the new X-ray functionalities of the SKIRT radiative transfer code, to study this gas and dust in the complex circumnuclear media of AGN. Focusing on the X-ray broadband spectra of obscured AGN, we introduce radiation processes in free-electron, cold-gas and dust media, which goes beyond the X-ray physics that are currently implemented in most X-ray spectral models for AGN. By incorporating these X-ray processes, we obtain a high-performance radiative transfer code that can self-consistently model complex AGN media from infrared to X-ray energies.
Pterosphenus Lucas 1899
Creators: name: Rage, Jean-Claude
name: Bajpai, Sunil
name: Thewissen, Johannes G. M.
name: Tiwari, Brahma N.
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Palaeophiidae
Pterosphenus

description: Pterosphenus sp.
REFERRED MATERIAL. — 15 vertebrae: 8 from HD Pit (RUSB 2721-58, 2721-59; RUSB 2564-27 to 2564- 31; RUSB 2784-5) and 7 from Channel Pit (RUSB 2790-22 to 2790-28).
 These vertebrae are too damaged to be allocated at species level. But their referral to Pterosphenus is unquestionable.
description: Published as part of Rage, Jean-Claude, Bajpai, Sunil, Thewissen, Johannes G. M. & Tiwari, Brahma N., 2003, Early Eocene snakes from Kutch, Western India, with a review of the Palaeophiidae, pp. 695-716 in Geodiversitas 25 (4) on page 708, DOI: 10.5281/zenodo.4650665