cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Principles and Methods in the Testing of Alternative Models
Creators: name: Fisher, Gordon
name: McAleer, Michael
name: Fisher, Gordon
name: McAleer, Michael
Publisher: name: Unknown
Year: 1980
Subjects: Financial Economics
Research Methods/ Statistical Methods

description: This paper seeks to distinguish the principles upon which testing of statistical hypotheses may be based and the practical methods which these principles generate. Six examples are given for the case of nested hypotheses as illustrations. In particular, Seber's (1964) conclusion that the Wald, Lagrange Multiplier and Likelihood Ratio Principles all lead to exactly the same test statistic in the case of a linear hypothesis, is re-examined in the light of a strict interpretation of these principles. Simple relations between various test statistics and their distributions are outlined. The concept of an artificial model is analyzed. A distinction is made between an artificial model that is in some sense an 'unrestricted' specification and one that is simply an algorithm. For non-nested hypotheses, an artificial model with prior information on the parameters is regarded as conforming to the Wald Principle. When arbitrary numerical methods are used as 'identifying' restrictions, the artificial model reduces to an algorithm since it cannot reasonably be 'accepted'.
All-electron self-consistent GW approximation: Application to Si, MnO, and NiO
Creators: name: Faleev, Sergey V.
name: van Schilfgaarde, Mark
name: Kotani, Takao
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present a new kind self-consistent GW approximation (scGW) based on the all-electron, full-potential LMTO method. By iterating the eigenfunctions of the GW Hamiltonian, self-consistency in both the charge density and the quasiparticle spectrum is achieved. We explain why this form of self-consistency should be preferred to the conventional one. Then some results for Si are shown as a representative semiconductor, to establish agreement with a prior scGW calculation. Finally we consider many details in the electronic structure of the antiferromagnetic insulators MnO and NiO. Excellent agreement with experiment is shown for many properties, suggesting that a Landau quasiparticle (energy band) picture of MnO and NiO provides a reasonable description of electronic structure even in these correlated materials.
description: 5 pages, 3 figures
Hylaeus rinki
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Colletidae
Hylaeus
Hylaeus rinki

description: Hylaeus rinki (Gorski, 1852)
Conservation status
VU
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
A Note on Multiproduct Economies of Scale and Economies of Scope
Creators: name: Mintz, Jack M.
name: Mintz, Jack M.
Publisher: name: Unknown
Year: 1980
Subjects: Financial Economics
Public Economics

description: Let S denote a measure of (local) economies of scale for a multiproduct firm. Define "strong" economies of scope as the savings in costs arising from the joint production of all products rather than producing each product separately. Define "incremental" economies of scope as the savings in costs arising from the joint production of all products rather than producing one of the products separately from the others. We show that these two concepts of economies of scope along with a measure of product- specific economies of scale, are sufficient to define S for the general case. For economies of scale it is important for "incremental" economies of scope to dominate "strong" economies of scope. To demonstrate this point, we provide an example in which diseconomies of scale may exist for the multiproduct firm despite the presence of both "strong" and "incremental" economies of scope and constant product specific returns to scale for each product.
D-Brane Effective Actions and Particle Production near the Beginning of the Tachyon Condensation
Creators: name: Kluson, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we will study the quantum field theory of fluctuation modes around the classical solution that describes tachyon condensation on unstable D-brane.We will calculate the number of particle produced near the beginning of the rolling tachyon process. We will perform this calculation for different tachyon effective actions and we will find that the rate of the particle production strongly depends on the form of the effective action used for the description of the early stage of the tachyon condensation.
description: 21 pages
First contact remarks on umbra difference calculus references streams
Creators: name: Kwasniewski, A. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05A40, 81S99

description: The reference links to the modern classical umbral calculus before that known as blissardian symbolic method are numerous. Rota founded and then extended finite operator calculus has links to references which are plenty numerous. The references via links to the difference q calculus umbra way treaded or without even referring to umbra are giant numerous. These reference links now result in counting in thousands the relevant papers . The purpose of the present attempt is to offer one of the keys to enter the world of those thousands of references.
description: 10 pages
Opec Versus A Large Open Economy: A Stochastic Equilibrium Model
Creators: name: Harkness, Jon P.
name: Harkness, Jon P.
Publisher: name: Unknown
Year: 1980
Subjects: Financial Economics
Research Methods/ Statistical Methods

description: If nothing else, recent experience with oil prices has taught us that: (a) even though large, economies such as the U.S. are, nonetheless, open; and (b) even though "small", OPEC has successfully exploited her market power over oil. Yet, nowhere in the literature is there a model capable of adequately analyzing the macro-effects of OPEC's monopolistic behaviour on a large open economy. This paper provides such a model. The model's main feature is that OPEC is an expected revenue-maximizing cartel who exploits the imperfectly-elastic oil demand curve emerging from the domestic economy's use of imported oil as an intermediate input into the production of manufactures. The system is subject to various stochastic shocks with OPEC's expectation on oil demand and domestic agents' price expectations being "rationally" formed. It is found that, unlike small open economies anticipated macro-policies will not alter domestic employment and GNP. In this regard, the large economy behaves as if it were closed. Moreover, micro-policies designed to reduce reliance on OPEC by encouraging adoption of oil -saving technologies are inflationary and permanently reduce GNP. While unanticipated macro-policies can temporarily alter domestic GNP, their impacts may be perverse depending both upon whether OPEC is a price or a quantity setter and upon The extent to which OPEC's revenues are recycled back to the domestic economy through the capital, rather than the trade, account. Lastly, the above results are shown also to hold when OPEC maximizes expected cartel profits, rather than revenues.
1. On User Solution Strategy for Mixed-Integer Linear Programming Models 2. On the Solution of Spatial Price and Allocation Models
Creators: name: Rowse, John
name: Rowse, John
Publisher: name: Unknown
Year: 1980
Subjects: Financial Economics
Research Methods/ Statistical Methods

description: Large scale mixed-integer linear programming MILP models may easily prove extraordinarily difficult to solve, even with efficient commercially-implemented MILP solution codes. Drawing on experience gained in solving and analyzing three intertemporal investment planning MILP models for electric power supply, this note offers several practical suggestions for reducing computer solution times for general productionallocation MILP models. Solution time reduction stems from judicious use of the powerful computational capabilities of existing commercial LP codes in conjunction with information known or to be learned by the Practitioner about the model's structure.
Priocera acrobela Opitz 2021, nov.sp.
Creators: name: Opitz, Weston
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cleridae
Priocera
Priocera acrobela

description: Priocera acrobela OPITZ nov.sp. (Figs 25, 91, 100)
 HOLOTYPE: ♂. Type locality: SAN ANTONIO de los Altos, m. 1300, (Edo. Miranda, Venezuela). A second label reads: 15-VI-1964, leg. BORDON (WOPC). PARATYPES: 19 specimens. Panamá: Provincia de Panamá, Cerro Campana, 29-VI-1974, C. W. & L. O’Brien & Marshall (WOPC, 1). Venezuela: Estado de Aragua, Tiara, 21-V-1967, 1,200 m, C. Bordón (WOPC, 1); Rancho Grande, 10-IV-1973, 1,100 m, G. Ekis (BMNH, 1; OXUM, 1; SDEI, 1; SMTD, 1); idem, 20 km N Maracay, 22-30-IV-1972, 1,130 m, C. T. Collins (CASC, 1); idem: 6-IsV-1978, 1,100 -1,500, O’Brien & Marshall (JNRC, 1); idem, 13- VIII- 1988, 1,200 -1,400 m, C. W. & L. O’Brien & Wibmer (CMNH, 1); Estado de Miranda, San Antonio de los Altos, 24-XII-1963, 1,300 m, C. Bordón (AMNH, 1); idem, 2-I-1964, C. Bordón (MCZC, 1); idem, 5-V-1963, C. Bordón (CSCA, 1); Estado de Distrito Capital, Caracas,?-?-1921, A. J. C. Rojas (USNM, 1); Los Venados, Parque Nacional Avila, 11- VIII- 1968, 1,600 m, C. Bordón (WOPC, 1); idem, 20- VIII- 1967, 1,600 m, Bordón (ZMHB, 1); 11- VIII- 1968, 1,600 m, C. Bordón (FMNH, 1); El Limón, 20-VI-1965, 1,800 m, C. Bordón (FSCA, 1); Estado de Mérida, 6 km E Las Cruces, 13-VII-1986, R. S. Miller (WFBM, 1). Colombia: Departamento de Huila, Parque Nacional Puracé, 1-VI-1972,2,300 m, C. Bordón (WOPC, 1).
D i a g n o s i s: Forebody and pterothorax castaneous; antenna testaceous; elytra tricolorous, ground color with admixture of testaceous and brown markings, elytral apex yellow; each elytron with 3 yellow markings, one at elytral base, one positioned in front of middle near epipleural margin, one postmedial near sutural margin; legs mostly castaneous, proximal region of femora and distal region of tibiae testaceous, upper margin of femoral capitulum castaneous, tarsi testaceous; abdomen testaceous.
 D e s c r i p t i o n: Size: Length 8.0 mm; width 2.0 mm. Form: As in Fig. 100. Head: Cranium finely punctate; frons about as wide as length of antennal pedicel (EW /FW 37/7). Thorax: Pronotum finely punctate, with 2 tumescenses (PW /PL 70/110); elytral disc sculptured with striate asetiferous punctures that extend to elytral distal 3/4 th (EL /EW 320/60); metathoracic femur gradually increasing in diameter to femoral apex. Abdomen: Aedeagus as in Fig. 25.
V a r i a t i o n: Size: Length 6.0-8.0 mm; width 1.8-2.0 mm. The yellow spots on the elytral disc may be white.
D i s t r i b u t i o n (Fig. 91): This species is known from Panamá, Colombia, and Venezuela.
 E t y m o l o g y: The trivial name, acrobela, stems from the Greek belos (= arrow). I refer to the arrow-like shape of the phallobase.
description: Published as part of Opitz, Weston, 2021, Taxonomic revision of the Western Hemisphere checkered beetle genus Priocera KIRBY (Coleoptera, Cleridae, Clerinae), pp. 1145-1255 in Linzer biologische Beiträge 52 (2) on pages 1156-1157, DOI: 10.5281/zenodo.5038854
Convergence in China's Regional Agricultural Productivity: Catching up or Lagging Behind?
Creators: name: Wang, S.L.
name: Huang, J.
name: Wang, X.
name: Tuan, F.
name: Wang, S.L.
name: Huang, J.
name: Wang, X.
name: Tuan, F.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Total Factor Productivity (TFP)
subject: σ convergence
subject: β convergence
subject: multilateral comparison
subject: China agricultural productivity growth

description: In this study, we use a multilateral total factor productivity (TFP) panel data, spanning 1985-2013 period, to test hypotheses of convergence to a single TFP level (σ convergence) and to a region-specific steady state TFP growth rate (β convergence) for China’s farm sector. Results show that there is no evidence of an overall σ convergence across all provinces. However, we find robust evidences of β convergence. Estimated rates of β convergence are conditional on how we capture the heterogeneity across regions. Overall, the rate of β convergence ranges from 0.016 to 0.039. Estimates also show that higher growth rate of education, R&D, capital/labor ratio, or intermediate goods/labor ratio can boost the rate of TFP growth.
Motion asymmetry of running (in Russian)
Creators: name: Pomerantsev, Andrey
name: Korshikov, Victor
name: Sychev, Valeriy
name: Shklyarov, Vladimir
name: Sveshnikov, Andrey
Publisher: name: figshare
Year: 2020
Subjects: subject: 110604 Sports Medicine
subject: FOS: Health sciences
subject: 150404 Sport and Leisure Management
subject: FOS: Economics and business
subject: 110699 Human Movement and Sports Science not elsewhere classified

description: The asymmetry of the running is considered in the article. The authors used videotaping at a frequency of 250 frames per second to study the running of 40 athletes of various sport specializations. As the analysis of the received data showed, only one athlete had equal length left and right steps. In some cases, the asymmetry of the running step reached 16% of the athlete's height. Neither trauma nor motor preferences of the left or right arm explain the asymmetry. The empirical distribution of the asymmetry values tends to a normal distribution, in many respects indicating a random character of the values obtained. In addition, there is a weak negative effect of the asymmetry to running speed. However, one-way analysis of variance did not allow to make a statistically reliable conclusion that it is sports specialization that affects the asymmetry of movements.
Food System Transformation in Mozambique: An Assessment of Changing Diet Quality in the context of a Rising Middle Class
Creators: name: Smart, Jenny Cairns
name: Tschirley, David
name: Smart, Francis
name: Smart, Jenny Cairns
name: Tschirley, David
name: Smart, Francis
Publisher: name: Unknown
Year: 2018
Subjects: subject: Community/Rural/Urban Development
subject: Food Consumption/Nutrition/Food Safety
subject: Nutrition
subject: Dietary diversity
subject: Dietary quality
subject: Urbanization
subject: Food Deserts
subject: Urban Farming
subject: Mozambique

description: Robust income growth combined with the highest urban population growth in the world is driving very rapid changes in the food system of Sub-Saharan Africa. Demand is increasing for higher quality foods, including fresh produce, meat and dairy products as well as more processed foods, with poorer nutritional value. The overweight and obesity epidemic that first began among developed nations is not sparing the expanding middle classes within developing countries, leading to a double burden of over and under nourished populations in these areas. As rapidly expanding towns and cities proliferate across Sub-Saharan Africa, urban areas can also become deserts for fresh or less-processed nutritious foods. Urban farming has been one way that the food desert challenge in urban areas is ameliorated, and in Mozambique, even in the largest city center of Maputo, one in ten households owns their own farm land. In the context of rapid urbanization and income growth in Mozambique, this paper finds that both growing incomes and the consumption of processed foods are associated with a worsening of negative factors in the diet. Furthermore, urbanization, controlling for income, is associated more strongly with a worsening of negative factors than with an improvement in positive factors in the diet. However the effect on nutrition of owning one’s own farm, controlling for the share of others in the household’s area that have a farm, is positive and significant for urban households, primarily driven by these households purchasing fewer unhealthy foods. These findings have important implications concerning the role of urban farming for improving dietary quality.
Plasmonic sensors based on funneling light through nanophotonic structures
Creators: name: Elshorbagy, Mahmoud H.
name: Cuadrado, Alexander
name: Alda, Javier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We present a refractometric sensor realized as a stack of metallic gratings with subwavelength features and embedded within a low-index dielectric medium. Light is strongly confined through funneling mechanisms and excites resonances that sense the analyte medium. Two terminations of the structure are compared. One of them has a dielectric medium in contact with the analyte and exploits the selective spectral transmission of the structure. The other design has a metallic continuous layer that generates surface plasmon resonances at the metal/analyte interface. Both designs respond with narrow spectral features that are sensible to the change in the refractive index of the analyte and can be used for sensing biomedical samples.
Forces During Bacteriophage DNA Packaging and Ejection
Creators: name: Purohit, Prashant K.
name: Inamdar, Mandar M.
name: Grayson, Paul D.
name: Squires, Todd M.
name: Kondev, Jane'
name: Phillips, Rob
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The conjunction of insights from structural biology, solution biochemistry, genetics and single molecule biophysics has provided a renewed impetus for the construction of quantitative models of biological processes. One area that has been a beneficiary of these experimental techniques is the study of viruses. In this paper we describe how the insights obtained from such experiments can be utilized to construct physical models of processes in the viral life cycle. We focus on dsDNA bacteriophages and show that the bending elasticity of DNA and its electrostatics in solution can be combined to determine the forces experienced during packaging and ejection of the viral genome. Furthermore, we quantitatively analyze the effect of fluid viscosity and capsid expansion on the forces experienced during packaging. Finally, we present a model for DNA ejection from bacteriophages based on the hypothesis that the energy stored in the tightly packed genome within the capsid leads to its forceful ejection. The predictions of our model can be tested through experiments in vitro where DNA ejection is inhibited by the application of external osmotic pressure.
Bombus campestris
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus campestris

description: Bombus campestris (Panzer, 1800)
Conservation status
VU
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Gravitational microlensing of quasar broad line regions at large optical depths
Creators: name: Lewis, Geraint F.
name: Ibata, Rodrigo A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent estimates of the scale of structures at the heart of quasars suggest that the region responsible for the broad line emission are smaller than previously thought. With this revision of scale, the broad line region is amenable to the influence of gravitational microlensing. This study investigates the influence on microlensing at high optical depth on a number of current models of the Broad Line Region (BLR). It is found that the BLR can be significantly magnified by the action of microlensing, although the degree of magnification is dependent upon spatial and kinematic structure of the BLR. Furthermore, while there is a correlation between the microlensing fluctuations of the continuum source and the BLR, there is substantial scatter about this relation, revealing that broadband photometric monitoring is not necessarily a guide to microlensing of the BLR. The results of this study demonstrate that the spatial and kinematic structure within the BLR may be determined via spectroscopic monitoring of microlensed quasars.
description: 10 pages, to appear in MNRAS. Resolution of several figures reduced
A Belief-Preference Model of Choice for Experience and Credence Goods
Creators: name: Costanigro, Marco
name: Onozaka, Yuko
name: Costanigro, Marco
name: Onozaka, Yuko
Publisher: name: Unknown
Year: 2018
Subjects: Institutional and Behavioral Economics

description: We develop a methodology addressing the issue of confounded beliefs and preferences in models of discrete choice. First, we formalize the theoretical framework and logical underpinnings of a belief-preference model of choice for experience and credence goods, where subjective beliefs relate to uncertain product quality. Then, we present the experimental procedure within the context of an online choice experiment studying consumer food preferences. The empirical strategy leverages information from a quality sorting task to identify and estimate beliefs, while choice data are used to recover preferences. By conditioning product choices on predicted quality perceptions, the issue of endogenous beliefs is resolved.
Untitled Item
Creators: name: Pomerantsev, Andrey
name: Korshikov, Victor
name: Sychev, Valeriy
name: Shklyarov, Vladimir
name: Sveshnikov, Andrey
Publisher: name: figshare
Year: 2020
Subjects: subject: 110604 Sports Medicine
subject: FOS: Health sciences
subject: 150404 Sport and Leisure Management
subject: FOS: Economics and business
subject: 110699 Human Movement and Sports Science not elsewhere classified

description: The asymmetry of the running is considered in the article. The authors used videotaping at a frequency of 250 frames per second to study the running of 40 athletes of various sport specializations. As the analysis of the received data showed, only one athlete had equal length left and right steps. In some cases, the asymmetry of the running step reached 16% of the athlete's height. Neither trauma nor motor preferences of the left or right arm explain the asymmetry. The empirical distribution of the asymmetry values tends to a normal distribution, in many respects indicating a random character of the values obtained. In addition, there is a weak negative effect of the asymmetry to running speed. However, one-way analysis of variance did not allow to make a statistically reliable conclusion that it is sports specialization that affects the asymmetry of movements.
Local Food Coming of Age: The Evolution of the Local Brand, Policy Initiatives and Role of Direct Markets in the Agriculture Portfolio
Creators: name: Thilmany, Dawn
name: Woods, Timothy A.
name: Thilmany, Dawn
name: Woods, Timothy A.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: Food policy
subject: Local food markets

description: We are at an interesting point in the evolution of local food markets, policy and research. This overview summarizes the highlights of a series of articles that explore the trends in markets and federal policy environment, as well as the potential implications for food labels and farm performance.
Adversarial Feature Learning and Unsupervised Clustering based Speech Synthesis for Found Data with Acoustic and Textual Noise
Creators: name: Yang, Shan
name: Wang, Yuxuan
name: Xie, Lei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Attention-based sequence-to-sequence (seq2seq) speech synthesis has achieved extraordinary performance. But a studio-quality corpus with manual transcription is necessary to train such seq2seq systems. In this paper, we propose an approach to build high-quality and stable seq2seq based speech synthesis system using challenging found data, where training speech contains noisy interferences (acoustic noise) and texts are imperfect speech recognition transcripts (textual noise). To deal with text-side noise, we propose a VQVAE based heuristic method to compensate erroneous linguistic feature with phonetic information learned directly from speech. As for the speech-side noise, we propose to learn a noise-independent feature in the auto-regressive decoder through adversarial training and data augmentation, which does not need an extra speech enhancement model. Experiments show the effectiveness of the proposed approach in dealing with text-side and speech-side noise. Surpassing the denoising approach based on a state-of-the-art speech enhancement model, our system built on noisy found data can synthesize clean and high-quality speech with MOS close to the system built on the clean counterpart.
description: submitted to IEEE SPL
Describing ‘Upcycling’ : Examining Perception and Valuation of Upcycled Meals
Creators: name: Parkin, Amelia
name: Segida, Elena
name: Wang, Jingyi
name: An, Max
name: Shan, Steve
name: Jiang, Xinyuan
Publisher: name: The University of British Columbia
Year: 2023

description: This study aims to examine the impact labeling has on consumers’ ratings of the appealingness and valuation of upcycled meals. We hypothesized that labeling upcycled meals with a short description of what ‘upcycled’ means will result in increased subjective ratings of appealingness and valuation in comparison to food that is not labeled or labeled ‘upcycled’ without a description. We conducted a between-subjects experiment with 177 participants randomly assigned to one of three conditions: a photo of a meal with no label, a photo of a meal labeled “made from upcycled ingredients,” and a photo of a meal labeled “made from upcycled ingredients” with a description of the what upcycled ingredients are. We found that participants in the third condition showed the highest ratings of appeal as well as being willing to pay more (by 15%), which supports our hypothesis. Additionally, labeling meals with just the term ‘upcycled’ (without explanation) showed the lowest levels of both appeal and willingness to pay. This research does not only provide evidence that labeling affects consumers’ perception and evaluation but also demonstrates that using novel and generally unknown terms such as ‘upcycled’ without providing any definition or explanation may lead to lower appeal and reduced economic benefits for the food makers. 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.”
A Local Food System Glossary: A Rose by Any Other Name
Creators: name: Holcomb, Rodney B.
name: Neill, Clinton L.
name: Lelekacs, Joanna
name: Velandia, Margarita
name: Woods, Timothy A.
name: Goodwin, H.L.
name: Rainey, Ronald L.
name: Holcomb, Rodney B.
name: Neill, Clinton L.
name: Lelekacs, Joanna
name: Velandia, Margarita
name: Woods, Timothy A.
name: Goodwin, H.L.
name: Rainey, Ronald L.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Marketing
subject: FOS: Economics and business
subject: Local Foods
subject: Glossary
subject: Value Chain

description: While “local” is an umbrella term for a broad array of niche food distribution strategies, agreeing on a single definition has been the subject of a long-standing debate in the food industry. However, there are several common traits and terms, which we formally define.
Bombus sylvarum
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus sylvarum

description: Bombus sylvarum (Linnaeus, 1761)
Conservation status
CR
Distribution
Bombus sylvarum has a large distribution in the West Palearctic (Rasmont et al. 2021). In Belgium, the species was extirpated from many localities where it used to thrive, especially in the western part of its distribution. Most of its subsisting locations are now concentrated east of the Sambre and Meuse valley. It can be noted that, even historically, B. sylvarum never seemed abundant in the country (Folschweiller 2020). Although habitat degradation has likely led the Belgian populations to their current status, climate change is expected to further impact the European range of B. sylvarum by the end of the century (Rasmont et al. 2015, Ghisbain et al. 2024).
Notes
Bombus sylvarum lives in a range of more or less open, flower-rich habitats where it can collect pollen from plants of the Fabaceae and Lamiaceae families (Rasmont et al. 2021, Wood et al. 2021). Notably, of the five individuals collected, only one was foraging on a plant from the Fabaceae family. Two were foraging on Asteraceae, one on Onagraceae, and one on Plantaginaceae. Folschweiller 2020 cite the species as frequently in sympatry with B. humilis and B. veteranus, two strongly-threatened species at the Belgian scale.
Diagnosis
In Belgium, the females of Bombus sylvarum (Fig. 9) can only be confused with those of B. veteranus. In the latter, the basis of the tergites 3 to 5 always include black hairs, which is not the case in the females of B. sylvarum. Furthermore, the mandibles of B. veteranus are substantially elongated, while those of B. sylvarum have a regular size, comparable to those of other females of free-living bumblebees. The males of B. sylvarum can be differentiated from the males of all other bumblebee species on the basis of the morphology of their genitalia (drawn in Rasmont et al. 2021).
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Growth of resonances and chaos for a spinning test particle in the Schwarzschild background
Creators: name: Zelenka, Ondřej
name: Lukes-Gerakopoulos, Georgios
name: Witzany, Vojtěch
name: Kopáček, Ondřej
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Inspirals of stellar mass compact objects into supermassive black holes are known as extreme mass ratio inspirals. In the simplest approximation, the motion of the compact object is modeled as a geodesic in the space-time of the massive black hole with the orbit decaying due to radiated energy and angular momentum, thus yielding a highly regular inspiral. However, once the spin of the secondary compact body is taken into account, integrability is broken and prolonged resonances along with chaotic motion appear. We numerically integrate the motion of a spinning test body in the field of a non-spinning black hole and analyse it using various methods. We show for the first time that resonances and chaos can be found even for astrophysical values of spin. On the other hand, we devise a method to analyse the growth of the resonances, and we conclude that the resonances we observe are only caused by terms quadratic in spin and will generally stay very small in the small-mass-ratio limit. Last but not least, we compute gravitational waveforms by solving numerically the Teukolsky equations in the time-domain and establish that they carry information on the motion's dynamics. In particular, we show that the time series of the gravitational wave strain can be used to discern regular from chaotic motion of the source.
description: 18 pages, 14 figures
Federal Policy, Administration, and Local Food Coming of Age
Creators: name: Clark, Jill K.
name: Jablonski, Becca B.R.
name: Clark, Jill K.
name: Jablonski, Becca B.R.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Know Your Farmer
subject: Know Your Food
subject: Farm Bill
subject: Local Food
subject: USDA

description: This article reviews the federal legislative and administrative maturation of local food. By focusing on the Farm Bill and the Know Your Farmer Know Your Food program—one way in which the USDA carries out its legislative mandates—we can assess where local foods will be in the future.
Putting Local Food Dollars to Work: The Economic Benefits of Local Food Dollars to Workers, Farms and Communities
Creators: name: Shideler, Dave
name: Bauman, Allie
name: Thilmany, Dawn
name: Jablonski, Becca B.R.
name: Shideler, Dave
name: Bauman, Allie
name: Thilmany, Dawn
name: Jablonski, Becca B.R.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Local foods
subject: economic impacts
subject: farm finance

description: Local and regional food systems have garnered food industry and policy interest. To inform discussions on potential economic benefits to a variety of stakeholders, we summarize work focused on workforce and farm financial performance implications of local food initiatives, ultimately linking those changes to potential economic impacts to surrounding communities.
Lasioglossum morio
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Lasioglossum
Lasioglossum morio

description: Lasioglossum morio (Fabricius, 1793)
Conservation status
LC
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Price Volatility Modelling – Wheat: GARCH Model Application
Creators: name: Čermák, M.
name: Malec, K.
name: Maitah, M.
name: Čermák, M.
name: Malec, K.
name: Maitah, M.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural Finance
subject: Research and Development/Tech Change/Emerging Technologies
subject: price volatility
subject: forecasting
subject: GARCH
subject: wheat price
subject: CME
subject: futures contracts

description: This paper is focused on the modelling of volatility in the agricultural commodity market, specifically on wheat. The aim of this study is to develop an applicable and relevant model of conditional heteroscedasticity from the GARCH family for wheat futures prices. The GARCH (1,1) model has the ability to capture the main characteristics of the commodity market, specifically leptokurtic distribution and volatility clustering. The results show that the forecasted volatility of wheat has a tendency towards standard error reversion in the long-run and the position of price distribution is closed to the normal distribution. The wheat production can be hedged against the price variability with long-term contracts. The price of wheat was influenced during the years of 2005 to 2015 by different events, in particular; financial crisis, increasing grain demand and cross-sectional price variability. The results suggest that agricultural producers should focus on short-term structural events the wheat market, rather than long-term variability.
Detection of latent heteroscedasticity and group-based regression effects in linear models via Bayesian model selection
Creators: name: Metzger, Thomas A.
name: Franck, Christopher T.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Standard linear modeling approaches make potentially simplistic assumptions regarding the structure of categorical effects that may obfuscate more complex relationships governing data. For example, recent work focused on the two-way unreplicated layout has shown that hidden groupings among the levels of one categorical predictor frequently interact with the ungrouped factor. We extend the notion of a “latent grouping factor” to linear models in general. The proposed work allows researchers to determine whether an apparent grouping of the levels of a categorical predictor reveals a plausible hidden structure given the observed data. Specifically, we offer a Bayesian model selection-based approach to reveal latent group-based heteroscedasticity, regression effects, and/or interactions. Failure to account for such structures can produce misleading conclusions. Since the presence of latent group structures is frequently unknown a priori to the researcher, we use fractional Bayes factor methods and mixture g-priors to overcome lack of prior information.
An updated estimate of the cosmic radio background and implications for ultra-high-energy photon propagation
Creators: name: Niţu, I. C.
name: Bevins, H. T. J.
name: Bray, J. D.
name: Scaife, A. M. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an updated estimate of the cosmic radio background (CRB) and the corresponding attenuation lengths for ultra-high energy photons. This new estimate provides associated uncertainties as a function of frequency derived from observational constraints on key physical parameters. We also present the expected variation in the spectrum of the CRB as a function of these parameters, as well as accounting for the expected variation in spectral index among the population of radio galaxies. The new estimate presented in this work shows better agreement with observational constraints from radio source-count measurements than previous calculations. In the energy regime where we expect cosmogenic photons dominantly attenuated by the CRB, our calculation of the attenuation length differs from previous estimates by a factor of up to 3, depending on energy and the specific model for comparison. These results imply a decrease in the expected number of cosmogenic photons with energies $\sim 10^{19}-10^{20}$ eV.
Lasioglossum pallens
Creators: name: Gérard, Maxence
name: Fiordaliso, William
name: Ferrais, Louise
name: Fournier, Chloé
name: Hairault, Malo
name: Lheureux, Lise
name: Rosa, Paolo
name: Ghisbain, Guillaume
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Lasioglossum
Lasioglossum pallens

description: Lasioglossum pallens (Brullé, 1832)
Conservation status
LC
description: Published as part of Gérard, Maxence, Fiordaliso, William, Ferrais, Louise, Fournier, Chloé, Hairault, Malo, Lheureux, Lise, Rosa, Paolo & Ghisbain, Guillaume, 2025, Wild bee diversity of the National Park of the Semois Valley (Belgium), pp. e 144223 in Biodiversity Data Journal 13 on page e144223, DOI: 10.3897/BDJ.13.e144223
Milky Way Subsystems from Globular Clusters Kinematics Using Gaia DR2 and HST Data
Creators: name: Bajkova, A. T.
name: Carraro, G.
name: Korchagin, V. I.
name: Budanova, N. O.
name: Bobylev, V. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We employ Gaia DR2 proper motions for 151 Milky Way globular clusters from Vasiliev (2019) in tandem with distances and line-of-sight velocities to derive their kinematical properties. To assign clusters to the Milky Way thick disk, bulge, and halo we follow the approach of Posti et al. (2018) who distinguished among different Galactic stellar components using stars's orbits. In particular, we use the ratio $L_{z}/e$, the $Z$ projection of the angular momentum to the eccentricity, as population tracer, which we complement with chemical abundances extracted from the literature and Monte-Carlo simulations. We find that 20 globular clusters belong to the bar/bulge of the Milky Way, 35 exhibit disk properties, and 96 are members of the halo. Moreover, we find that halo globular clusters have close to zero rotational velocity with average value $$ =1$\pm$ 4 km s$^{-1}$. On the other hand, the sample of clusters that belong to the thick disk possesses a significant rotation with average rotational velocity 179 $\pm$ 6 km s$^{-1}$. The twenty globular clusters orbiting within the bar/bulge region of the Milky Way galaxy have average rotational velocity of 49 $\pm$ 11 km s$^{-1}$.
description: 25 pages, 10 Figures, 5 Tables. Accepted to Astrophysical Journal
Was the Universe Reionized at Redshift 10?
Creators: name: Loeb, Abraham
name: Barkana, Rennan
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, Pello et al. (2004) claimed to have discovered a galaxy at a redshift z=10, and identified a feature in its spectrum with a hydrogen Lyman-alpha emission line. If this identification is correct, we show that the intergalactic medium (IGM) around the galaxy must be significantly ionized; otherwise, the damping wing of Lyman-alpha absorption by the neutral IGM would have greatly suppressed the emission line. We find either that the large-scale region surrounding this galaxy must have been largely reionized by z=10 (with a neutral fraction <0.4) or that the stars within the galaxy must be massive (>100 solar masses), and hence capable of producing a sufficiently large HII region around it. We generalize these conclusions and derive the maximum Lyman-alpha line flux for a given UV continuum flux of galaxies prior to the epoch of reionization.
description: 12 pages, 1 figure, ApJ, submitted
Spectroscopy on nanoparticles without light
Creators: name: Fiedler, Johannes
name: Persson, Clas
name: Buhmann, Stefan Yoshi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the most important tools in modern science is the analysis of electromagnetic properties via spectroscopy. The various types of spectroscopy can be classified by the underlying type of interactions between energy and material. In this paper we demonstrate a new class of spectroscopy based on Casimir interactions between a solid investigated object and a reference surface embedded in an environmental liquid medium. Our main example is based on the measurement of Hamaker constants upon changing the concentration of an intervening two-component liquid, where we demonstrate a possible reconstruction algorithm to estimate the frequency-dependent dielectric function of the investigated particle.
Gender Equality in Altmetric's Top 100
Creators: name: Altmetric Engineering
Publisher: name: Altmetric
Year: 2020
Subjects: subject: 80705 Informetrics
subject: FOS: Media and communications

description: Dr. Suze Kundu, Head of Public Engagement at Digital Science, analyses the gender balance of the Altmetric Top 100 2019 and explores how women are represented within research teams, current research culture and highlights ways to break down barriers to inclusion.
Labeling and framing effects in the willingness to purchase upcycled food
Creators: name: Tsa, Carol
name: Yi, Cindy
name: Man, Darren
name: Wang, Junyan
name: Feng, Maxine
name: Feng, Shuyi
Publisher: name: The University of British Columbia
Year: 2023

description: This study explored how labeling and framing affect people’s willingness to pay (WTP) for upcycled food, hypothesizing that labeling upcycled food as recoverable food as opposed to food scraps will increase WTP, and that framing the economic benefits as opposed to the societal benefits of upcycled food will reduce WTP differences between these labels. Participants recruited from the UBC community (N=128) were randomly assigned to read 1 of 4 versions of an article about upcycled food products that varied in terminology (describing ingredients as ‘food scraps’ or ‘recoverable food’) and framing (emphasizing economic or societal benefits). Participants then rated their willingness to accept purchasing and consuming 5 UBC food product images presented as being upcycled, along with their WTP for each. Results found that the ‘food scraps’ label did not create significantly more negative product perceptions nor significantly reduce related WTP compared to the ‘recoverable food’ label. A similar lack of significant positive findings was found for framing emphasizing economic benefits on all these measures compared to societal benefits, alongside no significant effect interaction between labeling and framing. This suggests that labeling and framing are not important factors in encouraging people to purchase and consume upcycled food products. 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.”
Prototype for an Undulator-based Source for Polarised Positrons: International Polarised Positron Collaboration: Project E-166
Creators: name: Moortgat-Pick, Gudrid
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The full exploitation of the physics potential of a future Linear Collider requires the development of polarised positron beams. A very promising scheme for the technical realisation is the use of helical undulators, generating circular polarised photons of several MeV which are then converted in a thin target to longitudinally polarised positrons. The experiment E-166 tests this scheme. It uses the low-emittance 50-GeV electron beam at the Final Focus Test Beam (FFTB) at SLAC, passing through a 1 meter-long helical undulator. The flux and polarisation of the undulator photons as well as the properties of the positrons will be measured and will be compared with simulations.
description: 3 pages, 5 postscript figures, epj style, talk given at the EPS conference, Aachen, Germany, July 2003