cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nature and Origin of Gold-Rich Carbonate Replacement Deposits at the Rau Occurrence, Central Yukon
Creators: name: Kingston, Scott P.
Publisher: name: The University of British Columbia
Year: 2009

description: The Rau occurrence is an unusual gold-rich carbonate replacement style deposit located in the Keno Hill District of central Yukon. It is most similar to the Ketza River deposit in southeastern Yukon, which is one of a small number of known gold-rich and base metal-poor carbonate replacement deposits in the world. The Rau occurrence itself hosts economically significant gold grades, and new information on the occurrence provides constraints on the genesis of this poorly understood type of deposit. A detailed petrographic study, utilizing both reflected light and a scanning electron microscopy, was completed using polished thin sections prepared from samples of drill core from two 2008 diamond drill holes on the Rau property. The petrographic analyses identified a simple hydrothermal mineralogy consisting of pyrite, pyrrhotite, and arsenopyrite as the dominant sulphides and a suite of accessory minerals that includes bismuthenite, sphalerite and chalcopyrite. No free gold was identified in the samples, and it remains unclear whether any of the gold in the deposit occurs as isolated grains or it occurs entirely in a more refractory form, perhaps in solid solution in arsenian pyrite. The mineralogy and paragenetic sequence observed at the Rau occurrence show a number of differences from the Ketza River deposit, including an abundance of talc and early stage marcasite in the Rau occurrence. Major and trace element geochemistry suggests that felsic dykes at the Rau occurrence appear to be of similar age and composition to the McQuesten Plutonic Suite to the south; however, the Rau dykes were likely derived from different source rocks and this may explain why their metallogenic signature differs from that of the McQuesten Suite. This suggestion is supported by Pb isotopic compositions of feldspars from the McQuesten Suite and Rau dykes. A Pb isotopic study was undertaken to constrain the source of metals in the sulphide mineralization at the Rau occurrence. The Pb isotopic signature of the sulphides is consistent with much of the Pb having been derived from the Rau intrusions themselves, with a variable contribution of Pb from the host carbonate rocks. Although the new work has shed some light on the nature and origin of gold-bearing carbonate replacement mineralization at the Rau occurrence, many questions regarding the genesis of the mineralization remain unanswered.
Equational Theorem Proving for Clauses over Strings
Creators: name: Kim, Dohan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Although reasoning about equations over strings has been extensively studied for several decades, little research has been done for equational reasoning on general clauses over strings. This paper introduces a new superposition calculus with strings and present an equational theorem proving framework for clauses over strings. It provides a saturation procedure for clauses over strings and show that the proposed superposition calculus with contraction rules is refutationally complete. This paper also presents a new decision procedure for word problems over strings w.r.t. a set of conditional equations R over strings if R can be finitely saturated under the proposed inference system.
description: In Proceedings LSFA 2022, arXiv:2303.12680
China Creek Water Quality: A Comparison Before and After Timber Harvest and Independent Power Project Construction
Creators: name: Buschhaus, Catherine T. E.
Publisher: name: The University of British Columbia
Year: 2011

description: Stream water quality is of significance not only to human resource-users and stake-holders, but also to the resident species in the stream and riparian ecosystems. Many of the chemical, biological, and physical attributes that define water quality are inter-related; however, a thorough understanding of the complexity of these processes is important for watershed management. The China Creek watershed on Vancouver Island was disturbed in the mid-2000s by both timber harvest and construction of a power project weir intake. Modelled relationships between key physical variables collected at the Port Alberni water intake weir, including daily maximum stream temperature (ºC), daily maximum air temperature (ºC), and daily average specific conductance (µS/cm) showed a statistically significant difference before and after disturbance. During low flows, as indicated by high specific conductance, stream temperatures increased approximately 1ºC following disturbance. While discrete water sample measurements of chemical and biological parameters were available, the data were insufficient to determine whether concentrations changed with disturbance. Quantifying water-quality variables and their relationships to one another could be important in monitoring the recovery of processes, such as thermal regime, following disturbance in China Creek.
title: SMEs in Legal and Architecture Services
Creators: name: Powell, Jennifer
name: Khachaturian, Tamar
Publisher: name: United States International Trade Commission
publisherIdentifier: https://ror.org/05hsggr76
publisherIdentifierScheme: ROR
Year: 2023

description: Through analysis of available data and outreach to representative firms, this paper focuses on small- and
medium-sized enterprises (SMEs) in two segments of the professional services sector: legal and
architecture services. We discuss the definition of SMEs in each of these industry segments; SMEs’
contribution to the number of U.S. establishments, employment, and exports; the types of services
provided to overseas clients; and the channels through which these services are supplied. The analysis
reveals meaningful distinctions between large and SME professional services firms, including differences
in revenues, number of employees, the means of providing services to foreign clients (with larger firms
tending to have establishments abroad), and the types of services provided (with small firms tending to
provide niche services). Architecture services SMEs generally appear to be more reliant on overseas
travel relative to SMEs in the legal services industry; however, different practices may exist across and
within firms due to individual preferences and needs.
Synthesis and Anisotropic Magnetic Properties of LiCrTe$_2$ Single Crystals with a Triangular-Lattice Antiferromagnetic Structure
Creators: name: Witteveen, Catherine
name: Nocerino, Elisabetta
name: López-Paz, Sara A.
name: Jeschke, Harald O.
name: Pomjakushin, Vladimir Y.
name: Månsson, Martin
name: von Rohr, Fabian O.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the synthesis of LiCrTe$_2$ single crystals and on their anisotropic magnetic properties. We have obtained these single crystals by employing a Te/Li-flux synthesis method. We find LiCrTe$_2$ to crystallize in a TlCdS$_2$ -type structure with cell parameters of $a$ = 3.9512(5) Å and $c$ = 6.6196(7) Å at $T$ = 175 K. The content of lithium in these crystals was determined to be near stoichiometric by means of neutron diffraction. We find a pronounced magnetic transition at $T^{\rm ab}_{\rm N}$ = 144 K and $T^{\rm c}_{\rm N}$ = 148 K, respectively. These transition temperatures are substantially higher than earlier reports on polycrystalline samples. We have performed neutron powder diffraction measurements that reveal that the long-range low-temperature magnetic structure of single crystalline LiCrTe$_2$ is an A-type antiferromagnetic (AFM) structure. Our DFT calculations are in good agreement with these experimental observations. We find the system to be easy axis with moments oriented along the $c$-direction experimentally as well as in our calculations. Thereby, the magnetic Hamiltonian can be written as $H = H_{\rm Heisenberg} + \sum_i K_c (S_i^z)^2$ with $K_c=-0.34K$ (where $|S^z|=\frac{3}{2}$). We find LiCrTe$_2$ to be highly anisotropic, with a pronounced metamagnetic transition for $H \perp ab$ with a critical field of $μH_{MM}$(5 K) $\approx$ 2.5 T. Using detailed orientation-dependent magnetization measurements, we have determined the magnetic phase diagram of this material. Our findings suggest that LiCrTe$_2$ is a promising material for exploring the interplay between crystal structure and magnetism, and could have potential applications in spin-based 2D devices.
Designing for efficient deconstruction
Creators: name: Poon, Chi-Yuen Winston
Publisher: name: The University of British Columbia
Year: 2016

description: Green building is getting an ever growing portion of the spotlight in today’s world. As people become more knowledgeable about the environmental issues, they are pushing for solutions that can aid in making society more sustainable. This has taken many forms, but there is a lot of potential in building construction that could be utilized from this movement. Designing buildings for efficient deconstruction could be one of the keys to improve the sustainability of buildings. Deconstruction is often passed over for the speed and perceived low price of demolition. This leaves many building materials that could be salvageable to be wasted and dumped needlessly in landfills. In order to fight this, knowledge of the deconstruction must be communicated. There are current building methods that could be should be fine tuned for this purpose, making them more mainstream and accepted. The materials that would be ideal for making these buildings have been in use for many years, but they need only be designed in such a way that they can be simply deconstructed. This concept of designing buildings for deconstruction may need to alter some perceptions about buildings before they can become mainstream. If done correctly, this could change the way many buildings are designed in the future.
Luffia lapidella
Creators: name: Larsen, Knud
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Psychidae
Luffia
Luffia lapidella

description: Luffia lapidella (Goeze, 1783).
Material examined. FRANCE. Ariége: Sinsat, 500 m. 2 specimens, 25.vii.1999 leg. et col. Knud Larsen. The locality is a humid valley just north of Andorra in the Pyrenees.
Male genitalia. Slide nb. 3508 ♂ K. Larsen (Fig. 4) is shown for comparison with the new species Luffia kirsteni n. sp. (Fig. 3a). In the lapidella specimen from France the sacculus is much longer compared with the Fig. 129 on Plate 31 of the lapidella male in Arnscheid & Weidlich (2017), which also is from France. This could be a preparation artefact. The antenna (Fig. 2b) of L. lapidella is also figured for comparing the size of the pecten.
description: Published as part of Larsen, Knud, 2020, New information on the genus Luffia Tutt, 1899 (Lepidoptera: Psychidae) from the Canary Islands with description of a new species Luffia kirsteni sp. nov. from Fuerteventura, pp. 1-3 in Metamorphosis 31 (1) on page 2, DOI: 10.4314/met.v31i1.1, http://zenodo.org/record/15041714
Supplementary document for Holographic Reconstruction Enhancement via Unpaired Image-to-Image Translation - 6118064.pdf
Creators: name: Scherrer, Romane
name: Quiniou, Thomas
name: Jauffrais, Thierry
name: Lemonnier, Hugues
name: Bonnet, Sophie
name: Selmaoui-Folcher, Nazha
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Luffia rebeli Walsingham 1908
Creators: name: Larsen, Knud
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Psychidae
Luffia
Luffia rebeli

description: Luffia rebeli Walsingham, 1908.
Material examined. SPAIN. Canary Islands. Tenerife. Anaga, Roque Negro, 615 m. 2 specimens, 7–9.viii.2018 leg. et col. Knud Larsen. The species was abundant at the locality, which is very misty, humid and with plenty of lichens everywhere. According to Sobczyk (2002) the flight period is May / June.
description: Published as part of Larsen, Knud, 2020, New information on the genus Luffia Tutt, 1899 (Lepidoptera: Psychidae) from the Canary Islands with description of a new species Luffia kirsteni sp. nov. from Fuerteventura, pp. 1-3 in Metamorphosis 31 (1) on page 3, DOI: 10.4314/met.v31i1.1, http://zenodo.org/record/15041714
Laboratory Experiments of Model-based Reinforcement Learning for Adaptive Optics Control
Creators: name: Nousiainen, Jalo
name: Engler, Byron
name: Kasper, Markus
name: Rajani, Chang
name: Helin, Tapio
name: Heritier, Cédric T.
name: Quanz, Sascha Patrick
name: Glauser, Adrian Michael
Publisher: name: ETH Zurich
Year: 2024
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)
Machine Learning (cs.LG)
Robotics (cs.RO)
FOS: Physical sciences
FOS: Computer and information sciences

description: Direct imaging of Earth-like exoplanets is one of the most prominent scientific drivers of the next generation of ground-based telescopes. Typically, Earth-like exoplanets are located at small angular separations from their host stars, making their detection difficult. Consequently, the adaptive optics (AO) system's control algorithm must be carefully designed to distinguish the exoplanet from the residual light produced by the host star.
A new promising avenue of research to improve AO control builds on data-driven control methods such as Reinforcement Learning (RL). RL is an active branch of the machine learning research field, where control of a system is learned through interaction with the environment. Thus, RL can be seen as an automated approach to AO control, where its usage is entirely a turnkey operation. In particular, model-based reinforcement learning (MBRL) has been shown to cope with both temporal and misregistration errors. Similarly, it has been demonstrated to adapt to non-linear wavefront sensing while being efficient in training and execution.
In this work, we implement and adapt an RL method called Policy Optimization for AO (PO4AO) to the GHOST test bench at ESO headquarters, where we demonstrate a strong performance of the method in a laboratory environment. Our implementation allows the training to be performed parallel to inference, which is crucial for on-sky operation. In particular, we study the predictive and self-calibrating aspects of the method. The new implementation on GHOST running PyTorch introduces only around 700 microseconds in addition to hardware, pipeline, and Python interface latency. We open-source well-documented code for the implementation and specify the requirements for the RTC pipeline. We also discuss the important hyperparameters of the method, the source of the latency, and the possible paths for a lower latency implementation.
description: arXiv
Bilateral corporate coherence and trade diversification at the firm level
Creators: name: Reinstaller, Andreas
name: Reschenhofer, Peter
name: Kügler, Agnes
name: Friesenbichler, Klaus
Publisher: name: Zenodo
Year: 2022

description: The paper introduces a novel indicator of technological relatedness across firms. It considers both imported inputs and exported products to assess the similarity of firms in terms of their technological capabilities in Austria. The indicator captures technological similarity more closely than measures relying solely on exported products or overlapping industry classes. Descriptive results indicate that companies that are more closely related in the import-export product space also export and import more complex products. More complex products in turn are related to higher labor productivity levels. The impact of the proposed measure for bilateral corporate coherence on the production costs of firms is assessed by firm‑level quadratic cost functions. The results indicate that bilateral coherence and related spillovers have a significant negative impact on the total cost of production of firms on average. The associated cost reduction effect follows a mildly U-shaped pattern. The paper also assesses the impact of bilateral coherence on the margins of trade at the firm level. The results indicate that firms with a higher bilateral coherence, and associated spillovers, have a positive impact on the diversification of both the export portfolio and imported inputs. The impacts on intensive margins and both import and export concentration are more ambiguous.
BNCC Computação por etapa, 1o. ao 5o. Ano
Creators: name: Primo, Tiago
name: Bernardi, Kelen
name: Maraschin Jr, Dirceu
Publisher: name: Zenodo
Year: 2025

description: 1. Compreender a Computação como uma área de conhecimento que contribui para explicar o mundo atual e ser um agente ativo e consciente de transformação capaz de analisar criticamente seus impactos sociais, ambientais, culturais, econômicos, científicos, tecnológicos, legais e éticos. 2. Reconhecer o impacto dos artefatos computacionais e os respectivos desafios para os indivíduos na sociedade, discutindo questões socioambientais, culturais, científicas, políticas e econômicas. 3. Expressar e partilhar informações, ideias, sentimentos e soluções computacionais utilizando diferentes linguagens e tecnologias da Computação de forma criativa, crítica, significativa, reflexiva e ética. 4. Aplicar os princípios e técnicas da Computação e suas tecnologias para identificar problemas e criar soluções computacionais, preferencialmente de forma cooperativa, bem como alicerçar descobertas em diversas áreas do conhecimento seguindo uma abordagem científica e inovadora, considerando os impactos sob diferentes contextos. 5. Avaliar as soluções e os processos envolvidos na resolução computacional de problemas de diversas áreas do conhecimento, sendo capaz de construir argumentações coerentes e consistentes, utilizando conhecimentos da Computação para argumentar em diferentes contextos com base em fatos e informações confiáveis com respeito à diversidade de opiniões, saberes, identidades e culturas. 6. Desenvolver projetos, baseados em problemas, desafios e oportunidades que façam sentido ao contexto ou interesse do estudante, de maneira individual e/ou cooperativa, fazendo uso da Computação e suas tecnologias, utilizando conceitos, técnicas e ferramentas computacionais que possibilitem automatizar processos em diversas áreas do conhecimento com base em princípios éticos, democráticos, sustentáveis e solidários, valorizando a diversidade de indivíduos e de grupos sociais, de maneira inclusiva. 7. Agir pessoal e coletivamente com respeito, autonomia, responsabilidade, flexibilidade, resiliência e determinação, identificando e reconhecendo seus direitos e deveres, recorrendo aos conhecimentos da Computação e suas tecnologias para tomar decisões frente às questões de diferentes naturezas.
Energy efficient door design
Creators: name: Liem, Martin
Publisher: name: The University of British Columbia
Year: 2016

description: It is important to strive for greater energy efficiency when producing a product that will have a significant effect on a household’s overall energy consumption. The door manufacturing industry has been mandated by the Canadian federal government to authenticate that each product that they sell has a U-value no greater than 2.00 W/m2K. This regulation has caused door producers to re-evaluate their designs and certify only their most efficient designs before the enforcement date of January 1st, 2010. Currently only 11 solid wood exterior door designs offered by 2 manufacturers are listed under the CSA directory of certified exterior doors (CSA, 2009). The purpose of this study is to determine the necessary features that a pre-hung door system is required to have in order to comply with the new building code. As it stands, solid wood doors will need to be built to a minimum thickness of 2-1/4”; use foam insulated cores; and / or incorporate the use of large sections of insulated glass units. This report will explain the specific requirements needed in order for an exterior door unit to qualify for sale within Canada. This study will detail a design brief outlining the key design characteristics that will help increase the energy efficiency of the design. A classical door design will then be evaluated by a thermal simulation testing software called THERM, which is the same method of product testing that is used by the engineering firms currently certifying fenestration products.
Comparison of Policies for Run-of-River Projects and Forestry Activities
Creators: name: Farrer, Nicola
Publisher: name: The University of British Columbia
Year: 2011

description: The province of British Columbia is made of vast wilderness. Consequently many natural resource based industries have become prominent in BC’s economy. There is growing concern over the impacts these industries will have on the environment. This paper will focus on the impacts of forestry activities and run-of-river hydro projects, as well as give a comparison and analysis of the policies and regulations each follow while conducting their activities.
Neurochemical and Psychometric Correlates of Self-Identified Dominance in Adult Transgender Men (FTM): A Multimodal Analysis
Creators: name: Henry B Parker
Publisher: name: Zenodo
Year: 2025
Subjects: FTM
Transgender
Sexual and reproductive health
eng

description: This document provides an extended summary or abstract of a research study investigating the neurochemical and psychological correlates of self-identified dominance in adult transgender men (FTM). It outlines the study's aims, methodology, key findings, and implications.

Specifically, the document will contain:

Introduction: A background on the research topic, highlighting the gap in existing literature regarding the neurobiological and psychological aspects of sexual role preference in transgender individuals. It will state the study's hypothesis: that self-identified dominance is associated with increased dopaminergic signaling and enhanced psychological well-being.

Methodology: A description of the study's design, including the recruitment of 500 adult FTM participants, the use of a self-administered questionnaire to assess sexual role preference, electroencephalographic (EEG) spectral analysis to measure dopamine neurotransmission and D1 receptor engagement, and psychometric instruments to evaluate psychological well-being.

Results: A summary of the study's findings, including the significant increase in dopamine release and D1 receptor engagement observed in the dominant group, and the positive correlation between self-identified dominance and enhanced psychometric scores.

Discussion: An interpretation of the results, discussing the implications for understanding the neurobiological and psychological dimensions of sexual role preference in transgender men. It will address the study's limitations and suggest directions for future research. It will also touch on the clinical implications of the findings.

Overall: a description of how dominance in FTM men is measured, and how dopamine and D1 receptors are measured.
title: Approaches of Measuring Revealed Comparative Advantage (RCA): Literature Review
Creators: name: Jones, Lin
name: Bethmann, Erika
Publisher: name: United States International Trade Commission
publisherIdentifier: https://ror.org/05hsggr76
publisherIdentifierScheme: ROR
Year: 2023

description: This working paper is the first of the series that explore the adaptions and applications of Balassa
revealed comparative advantage (RCA) approach in analyzing international specialization and global
supply chains. This paper provides a comprehensive review of the existing RCA literature and
summarizes major variations of Balassa RCA approach, such as one-way trade based, two-way trade
based, with or without normalization, with or without trade scalar such as economy size or income. This
paper discusses the pros and cons of each RCA method, and identifies the key elements for
consideration when applying and adapting the RCA approach in analysis of international specialization
or competitiveness.
Supplementary document for Millihertz Magnetic Resonance Spectroscopy Combining Heterodyne Readout Based on Solid-spin Sensors - 6118450.pdf
Creators: name: Fan, Pengcheng
name: Zhang, Jixing
name: Cui, Zhiying
name: Xu, Lixia
name: Bian, Guodong
name: Li, Mingxin
name: yuan, heng
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Additional details of system Hamiltonian, the evolution of states, the theory of the heterodyne readout, experimental methods and comparison of this work with the state-of-art results.
Elliptic Pre-Complexes, Hodge-like Decompositions and Overdetermined Boundary-Value Problems
Creators: name: Kupferman, Raz
name: Leder, Roee
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 31C12, 35N25, 35S15, 53A45, 58J10

description: We solve a problem posed by Calabi more than 60 years ago, known as the Saint-Venant compatibility problem: Given a compact Riemannian manifold, generally with boundary, find a compatibility operator for Lie derivatives of the metric tensor. This problem is related to other compatibility problems in mathematical physics, and to their inherent gauge freedom. To this end, we develop a framework generalizing the theory of elliptic complexes for sequences of linear differential operators $(A_{\bullet})$ between sections of vector bundles. We call such a sequence an elliptic pre-complex if the operators satisfy overdetermined ellipticity conditions, and the order of $A_{k+1}A_k$ does not exceed the order of $A_k$. We show that every elliptic pre-complex $(A_{\bullet})$ can be "corrected" into a complex $(\mathcal{A}_{\bullet})$ of pseudodifferential operators, where $\mathcal{A}_k - A_k$ is a zero-order correction within this class. The induced complex $(\mathcal{A}_{\bullet})$ yields Hodge-like decompositions, which in turn lead to explicit integrability conditions for overdetermined boundary-value problems, with uniqueness and gauge freedom clauses. We apply the theory on elliptic pre-complexes of exterior covariant derivatives of vector-valued forms and double forms satisfying generalized algebraic Bianchi identities, thus resolving a set of compatibility and gauge problems, among which one is the Saint-Venant problem.
description: 70 pages
A pre-feasibility study to assess the potential of Open Loop Ground Source Heat to heat and cool the proposed Earth Science Systems Building at the University of British Columbia
Creators: name: Parajulee, Abha
name: Smet, Kim
Publisher: name: The University of British Columbia
Year: 2009

description: The predicted end of the oil era, along with increasing atmospheric carbon dioxide and pollution, and the resultant climate change have led to wider global acceptance of the urgent need for alternative renewable energy sources. Ground source heat presents such a viable alternative, having been hydrogeologically and economically refined through much research, design and development in the European Union and elsewhere over the past 20 years. This study investigated the hydrogeologic potential of using an open-loop ground source heat system to heat and cool the proposed Earth Systems Science Building (ESSB) at the University of British Columbia (UBC) campus. This was done by inserting existing data from previous hydrogeologic investigations at UBC into water and heat yield equations to finally identify a range of the total number of wells required to meet the heating and cooling demands of the ESSB. We found a best case scenario of 2 wells, a mean case of 5 and a worst case of 15 wells. The economic feasibility was assessed by comparing the capital and running costs for open-loop systems of the various well number scenarios to those for a steam-run heating system, i.e. the conventional method at UBC. We found the three well scenarios to have payback times of 5, 6 and 8 years respectively, after which they would offer a minimum annual cost savings of $50,500. Though a ground source heat system was found to be economically feasible, from a hydrogeologic point of view, installing more than one or maximum two wells is not realistic as it takes up a fairly large proportion of UBC’s groundwater resources and the drawdown cone has a large land footprint. Hence using ground source heat and combination technologies is a better approach. Much further work would be needed before any such system could be implemented. A detailed hydrogeologic site investigation including the effects of pumping on the future utilization of groundwater resources at UBC, combined with finalized building specifications would be required in the next step of the assessment process. Furthermore, it was found that current British Columbia groundwater legislation is lacking in water withdrawal specifications, as are the Canadian ground source heat industry’s level of information centralization and standardization of technique and design. Through its institutional development policies and practices, UBC has firmly demonstrated its commitment to sustainability in response to the threat of climate change. As a leading global academic institution, UBC has the potential to take its visionary development one step further by installing this new technology that makes much sense in the context of climate change and Canada’s commitment to the Kyoto protocol.
On the critical regularity of nilpotent groups acting on the interval: the metabelian case
Creators: name: Escayola, Maximiliano
name: Rivas, Cristóbal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Group Theory (math.GR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 20F18, 37C05, 37C85, 37E05

description: Let $G$ be a torsion-free, finitely-generated, nilpotent and metabelian group. In this work we show that $G$ embeds into the group of orientation preserving $C^{1+α}$-diffeomorphisms of the compact interval, for all $α< 1/k$ where $k$ is the torsion-free rank of $G/A$ and $A$ is a maximal abelian subgroup. We show that in many situations the corresponding $1/k$ is critical in the sense that there is no embedding of $G$ with higher regularity. A particularly nice family where this happens, is the family of $(2n+1)$-dimensional Heisenberg groups, for which we can show that the critical regularity equals $1+1/n$.
description: 22 pages
On communication with Perfect Feedback against Bit-flips and Erasures
Creators: name: Nasa, Shreya
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 461301
subject: Coding, information theory and compression

description: We study the communication model with perfect feedback considered by Berlekamp (PhD Thesis, 1964), in which Alice wishes to communicate a binary message to Bob through a noisy adversarial channel, and has the ability to receive feedback from Bob via an additional noiseless channel. Berlekamp showed that in this model one can tolerate 1/3 fraction of errors (a.k.a., bit-flips or substitutions) with non-vanishing communication rate, which strictly improves upon the 1/4 error rate that is tolerable in the classical one-way communication setting without feedback. In the case when the channel is corrupted by erasures, it is easy to show that a fraction of erasures tending to 1 can be tolerated in the noiseless feedback setting, which also beats the 1/2 fraction that is maximally correctable in the no-feedback setting. In this thesis, we consider a more general perfect feedback channel that may introduce both errors and erasures. We show the following results:1. If α, β ∈ [0, 1) are such that 3α + β < 1, then there exists a code that achieves a positive communication rate tolerating α fraction of errors and β fraction of erasures. Furthermore, no code can achieve a positive-rate in this channel when 3α + β ≥ 1.2. For the case when 3α + β < 1, we compute the maximal asymptotic communication rate achievable in this setting.
title: Motivations and Barriers for the Participation of Family Forest Owners in Conservation Practices: An Application of the Transtheoretical Model: Supplemental Materials
Creators: name: Harrington, Margaret
name: Butler, Brett
name: Sass, Emma
Publisher: name: University of Massachusetts Amherst
publisherIdentifier: https://ror.org/0072zz521
publisherIdentifierScheme: ROR
Year: 2025

description: Supplemental Materials for Harrington, M., Butler, B. J., & Sass, E.M. In review. Motivations and Barriers for the Participation of Family Forest Owners in Conservation Practices: An Application of the Transtheoretical Model. Submitted to Human Dimensions of Wildlife.

This document contains supplemental materials associated with Harrington et al. (in review) including:
• Diagram of the Transtheoretical Model Stages of Change
• Coding of Survey Responses into Transtheoretical Model Stages of Change
• Survey Instrument
title: New Maritime Decarbonization Regulations: Background & Market Effects (Part 1)
Creators: name: Telles, Rudy
Publisher: name: United States International Trade Commission
publisherIdentifier: https://ror.org/05hsggr76
publisherIdentifierScheme: ROR
Year: 2023

description: New United Nations’ International Maritime Organization (IMO) regulations require existing maritime
vessels to meet a minimum energy efficiency design standard, while also requiring that larger vessels be
graded on their carbon intensity (beginning in 2024). In response, ocean carriers are modifying their fleets,
with compliance costs expected to increase total maritime logistics costs and alter freight rates and have
a small but negative impact on total global trade and a minimal impact on GDP. This EBOT is the first in a
series that examines the market impacts of a new wave of global maritime decarbonization initiatives.
Forecasting with Baysesian VARs: Does Larger Mean Better?
Creators: name: Pawin Siriprapanukul
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553
Subjects: Bayesian VARs,Macroeconomic Forecasting,Model Specification

description: 1, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
An analysis of greenhouse gas emissions from the production of commercial fertilizers, in relation to their use in carbon-sequestration reforestation projects
Creators: name: Dolejsi, Douglas
Publisher: name: The University of British Columbia
Year: 2016

description: This paper aims to analyze the environmental impact of greenhouse gas emissions from the production of commercial fertilizers, in relation to their use in carbon-sequestration reforestation projects. It will look at the emissions related to the production and application of fertilizers. It will also analyze the benefits of the use of fertilizers for seedlings and near-end of rotation stands. Finally, the results will be discussed in terms of net carbon storage effects, and any possible implications for landowners looking to make decisions regarding carbon sequestration projects.
B!SON: A Tool for Open Access Journal Recommendation
Creators: name: Entrup, Elias
name: Eppelin, Anita
name: Ewerth, Ralph
name: Hartwig, Josephine
name: Tullney, Marco
name: Wohlgemuth, Michael
name: Hoppe, Anett
Publisher: name: Cham, Switzerland : Springer
Year: 2022
Subjects: subject: Open access
subject: Paper submission
subject: Publishing
subject: Recommendation system
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Finding a suitable open access journal to publish scientific work is a complex task: Researchers have to navigate a constantly growing number of journals, institutional agreements with publishers, funders’ conditions and the risk of Predatory Publishers. To help with these challenges, we introduce a web-based journal recommendation system called B!SON. It is developed based on a systematic requirements analysis, built on open data, gives publisher-independent recommendations and works across domains. It suggests open access journals based on title, abstract and references provided by the user. The recommendation quality has been evaluated using a large test set of 10,000 articles. Development by two German scientific libraries ensures the longevity of the project.
การแสวงหาผลประโยชน์จากการเป็นซัพพลายเออร์ของบริษัทข้ามชาติ : กรณีศึกษาอุตสาหกรรมชิ้นส่วนยานยนต์ไทย
Creators: name: พีระ เจริญพร
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553

description: 1, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
Input-Output Feedback Linearization Preserving Task Priority for Multivariate Nonlinear Systems Having Singular Input Gain Matrix
Creators: name: An, Sang-ik
name: Lee, Dongheui
name: Park, Gyunghoon
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Robotics (cs.RO)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose an extension of the input-output feedback linearization for a class of multivariate systems that are not input-output linearizable in a classical manner. The key observation is that the usual input-output linearization problem can be interpreted as the problem of solving simultaneous linear equations associated with the input gain matrix: thus, even at points where the input gain matrix becomes singular, it is still possible to solve a part of linear equations, by which a subset of input-output relations is made linear or close to be linear. Based on this observation, we adopt the task priority-based approach in the input-output linearization problem. First, we generalize the classical Byrnes-Isidori normal form to a prioritized normal form having a triangular structure, so that the singularity of a subblock of the input gain matrix related to lower-priority tasks does not directly propagate to higher-priority tasks. Next, we present a prioritized input-output linearization via the multi-objective optimization with the lexicographical ordering, resulting in a prioritized semilinear form that establishes input output relations whose subset with higher priority is linear or close to be linear. Finally, Lyapunov analysis on ultimate boundedness and task achievement is provided, particularly when the proposed prioritized input-output linearization is applied to the output tracking problem. This work introduces a new control framework for complex systems having critical and noncritical control issues, by assigning higher priority to the critical ones.
description: A part of this work has been accepted to be published in the IEEE Transactions on Automatic Control
บทบาทของภาคเกษตรในความผันผวนของเศรษฐกิจไทย
Creators: name: จิรวัฒน์ เจริญสถาพรกุล
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553
Subjects: Agricultural Sector Volatility,Real Business Cycle Model

description: 1, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
การเลือกชมภาพยนตร์ที่โรงภาพยนตร์และความคาดหวังจากการชมภาพยนตร์ไทย
Creators: name: กอบกูล จันทรโคลิกา
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553

description: 1, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
Food Demand Elasticities among Urban Households in Thailand
Creators: name: Rattiya Suddeephong Lippe
name: Somporn Isvilanonda
name: Seebens, Holger
name: Matin Qaim
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553
Subjects: Food demand elasticities,Linear Almost Ideal Demand System,Two-stage budgeting,Censored data

description: 2, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
Are Thermal Attacks a Realistic Threat? Investigating the Preconditions of Thermal Attacks in Users' Daily Lives
Creators: name: Bekaert, Paul
name: Alotaibi, Norah
name: Mathis, Florian
name: Gerber, Nina
name: Rafferty, Aidan Christopher
name: Khamis, Mohamed
name: Marky, Karola
Publisher: name: New York, NY : Association for Computing Machinery
Year: 2022
Subjects: subject: side-channel attacks
subject: thermal attacks
subject: usable privacy
subject: usable security
subject: Konferenzschrift

description: Thermal attacks refer to the possibility of capturing heat traces that result from interacting with user interfaces to reveal sensitive input, such as passwords. The technical feasibility and effectiveness of thermal attacks have already been demonstrated. Yet, several preconditions have to be met for successful thermal attacks. In this paper, we investigate user awareness of thermal attacks and to which extent the attack's preconditions are met in the users' daily lives. We present results from an online study with 101 participants showing that users are frequently at risk of thermal attacks based on their behavior, e.g., due to leaving devices unattended, or their choice of authentication method. Further, only 7 of our 101 participants had heard of thermal attacks. Based on our results, we discuss the implications on user security, operators of public spaces, and the development of thermal attack-resistant input methods.
Elevated Serum Presepsin Identifies Herpes Simplex Virus-1 Reactivation in COVID-19 Patients
Creators: name: Mester, Patricia
name: Keller, Dennis
name: Kunst, Claudia
name: Schmid, Stephan
name: Krautbauer, Sabrina
name: Müller, Martina
name: Buechler, Christa
name: Pavel, Vlad
Publisher: name: Universität Regensburg
Year: 2025
Subjects: subject: COVID-19; presepsin; SARS-CoV-2; herpes simplex virus; bacterial superinfection
subject: 610 Medizin

description: Presepsin, a cleaved peptide of soluble CD14, may become a promising biomarker for assessing disease severity and mortality in coronavirus disease 2019 (COVID-19). Patients with severe COVID-19 frequently develop bacterial and fungal superinfections, as well as herpes simplex virus-1 (HSV-1) reactivation, which may exacerbate disease progression. This study aimed to evaluate the impact of concomitant infections on serum presepsin levels. Serum presepsin levels were measured using an enzyme-linked immunosorbent assay (ELISA) in 63 patients with moderate COVID-19, 60 patients with severe disease, and 49 healthy controls. Correlations with procalcitonin and the presence of superinfections or HSV-1 reactivation were assessed. Consistent with previous studies, serum presepsin levels were the highest in patients with severe COVID-19 (p = 0.002 compared to patients with moderate disease). Within this group, non-survivors exhibited significantly elevated presepsin levels (p = 0.027). A positive correlation between presepsin and procalcitonin was observed in both moderate and severe COVID-19 cases. Patients with bacterial or fungal superinfections showed presepsin levels comparable to those without secondary infections. However, presepsin levels were markedly elevated in patients with HSV-1 reactivation (p = 0.002). After excluding patients with HSV-1 reactivation, presepsin levels no longer differed between moderate and severe COVID-19 cases, though they remained higher than in healthy controls (p < 0.001 for both comparisons). In conclusion, these findings suggest that elevated serum presepsin levels in severe COVID-19 are primarily driven by HSV-1 reactivation rather than bacterial or fungal superinfections.
Evaluation of bioindicators and structural attributes as indicators of old-growth forests
Creators: name: Anderson, Meghan
Publisher: name: The University of British Columbia
Year: 2016

description: There is a lack of practical and accurate tools for identifying old-growth forests that are of important conservation value. In order to achieve more accurate methods for identifying old-growth forests, species and structural attributes of forests have been suggested as indicators. To assess which indicators among those commonly used for old-growth may be most practical and applicable a system of evaluating the indicators based on biological traits and current research was done. Species evaluated were saproxylic beetles, wood-inhabiting fungi, bryophytes and lichen. Structural attributes evaluated were dead wood measured, wildlife values, diameter at breast height (DBH), tree density and basal area. Indicators were evaluated on the basis of 15 criteria. None of the indicators were able to fulfill all criteria. The indicators that were able to fulfill most criteria were saproxylic beetles and lichen (67%) followed by structural indicators (64%). Evaluation of indicators suggests that saproxylic beetles and lichen used in concert may more suitable indicators for indicating old-growth forests, where as structural indicators may be less suitable but a more practical method. However, species indicators are unreliable and more research is required to determine their accuracy and improve their reliability.
Crisis Of Infrastructure and Agricultural Development in Africa: The Case of Nigeria
Creators: name: Boroh, Stanley Ebitare
name: Nwakanma, Emmanuel
Publisher: name: Zenodo
Year: 2018
Subjects: subject: Africa
subject: Agriculture
subject: Infrastructure Development
subject: Sociology
subject: FOS: Sociology

description: The importance of agriculture to human survival cannot be overemphasized and this is because it provides food for the world over. For any society to develop and thrive in its agricultural sector there must be on ground requisite infrastructures to aid the development of the sector. This study therefore looks at the prime importance of agriculture and the roles infrastructural facilities play in the development of the sector. Relying mainly on extant literature, quality road networks, postharvest storage facilities. electricity and telecommunication, amongst many others, have been clearly shown to play critical roles in agricultural development. Inadequacy or lack of these basic infrastructures is capable of impeding agricultural development. The study adopted Adelman's general equilibrium theory of agricultural demand led industrialization (ADLI) which is the view that the linkages between production and consumption in a country's development strategy should be agriculture-driven rather than export-driven and increased agricultural productivity would be the initiator of industrialization. The paper therefore recommends that there should be a broad economic plan in using agriculture to transform the economy of states in Africa, Africa and Nigeria in particular must replace the importation of agricultural produces and materials with their own produce, which would in turn reduce poverty, enhance food and nutrition security, and provide sustainable growth to the respective societies.
รายจ่ายวิจัยและพัฒนาของสถานประกอบการอุตสาหกรรมไทย
Creators: name: ดิเรก ปัทมสิริวัฒน์
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553
Subjects: R&D expenditure by industrial enterprises,national innovation system

description: 2, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
ความเต็มใจจ่ายในการใช้บริการหมอดู
Creators: name: พิริยะ ผลพิรุฬห์
name: ศศินีย์ ศักดากรกุล
Publisher: name: โรงพิมพ์มหาวิทยาลัยธรรมศาสตร์
Year: 2553
Subjects: Willingness to Pay,Imperfect Information,Fortune Teller

description: 2, 28, วารสารเศรษฐศาสตร์ธรรมศาสตร์
title: Le Manuel de Formation des Maitres des Classes Multigrades en Gambie
Creators: name: (:Unkn) Unknown
Publisher: name: University of Massachusetts Amherst
Year: 2008
Subjects: subject: Bilingual, Multilingual, and Multicultural Education
subject: International and Comparative Education

description: Ce document est le fruit d’une recherche action initiée dans le cadre du Projet LIRE (Learning Initiatives in Rural Education : Les Initiatives d’Apprentissage dans l’Education en milieu Rural), financé par un fonds en fidéicommis de la Banque Mondiale, Sénégal, numéro de contrat 7145279. Son objectif est de contribuer à l’amélioration de l’accès et la qualité de l’enseignement dans les zones rurales à faible densité de population au Sénégal et en Gambie. Ce document démontre une collaboration fruteuse entre des educateurs gambiens et les membres de l’equipe du projet LIRE en Gambie et au Center for internationalEducation (CIE) à l’Université de Massachusetts Amherst (UMass).
description: Ce manuel du formateur et, « Le guide du maître des classes multi-grades » sont des produits d’une collaboration participative et intéractive entre membres du projet LIRE au Etats Unis et en Gambie. La création des deux documents a ete supervisee par le projet LIRE ainsi que les membres du Conseil Consultatif (qui comportaient des acteurs experimentés dans le domaine de l’education) en Gambie. Des inspecteurs sur le terrain et des enseignants multi-grades qui ont participé tout au au long du projet ont beaucoup contribué à la réalisation de ce manuel.