cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The role of Syk-family protein tyrosine kinases in B cell development.
Creators: name: Fallah-Arani, Farnaz
Publisher: name: The Open University
Year: 2006

description: The related Syk and Zap70 tyrosine kinases play an important role in lymphocyte development and signalling. Gene targeted mutant mice revealed that Syk plays a significant role in B cell development. Syk'1' mice show a partial block in B cell development at the pro-B to pre-B cell transition and a complete block at the immature to mature B cell transition. In contrast, mice deficient for Zap70 were reported to have normal numbers of B cells, but no T cells due to a block in thymic positive selection. Unexpectedly, mice deficient for both Syk and Zap70 show a complete block in B cell development at the pro-B to pre-B cell transition, indicating that Zap70 plays a role in the B cell lineage as well.
 I have now further explored the role of Zap70 in B cell development and function. I found that Zap70 is expressed in all developing and mature B cell subsets, although pro-B cells express higher levels of Zap70 than other populations. Analysis of B cell development showed an increase in Bib and marginal zone B cells in Zap70 '1' mice, which was due to the lack of Zap70 in the B cell lineage. In contrast, Zap70-deficient B cells were able to mount normal T-dependent and T-independent immune responses and had unaffected BCR-induced calcium release.
Furthermore, I asked whether the distinct effects of Syk and Zap70 mutations on B cell development were due to intrinsic differences in the function of the two kinases, or rather reflected differences in levels of expression. I found that overexpression of Zap70 in Syk'1' mice completely rescued B cell development, arguing that the two kinases are able to perform the same function during B cell development, and that the distinct B cell phenotypes of Syk'1' and Zap 70'1' mice are caused mainly by differences in levels of expression.
Finally, to be able to address the role of Syk in mature B cells, I set up a system where I made Syk inducible by fusing the protein to the hormone-binding domain of the estrogen receptor (ER-HBD). Three different Syk-ER fusion constructs were expressed in Syk'1' DT40 cells and one of these was found to restore BCR-induced calcium fluxes in a hormone-dependent manner.
Near-threshold $ω$ and $ϕ$ meson productions in $pp$ collisions
Creators: name: Tsushima, K.
name: Nakayama, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using a relativistic effective Lagrangian at the hadronic level, near-threshold $ω$ and $ϕ$ meson productions in proton proton ($pp$) collisions, $p p \to p p ω/ϕ$, are studied within the distorted wave Born approximation. Both initial and final state $pp$ interactions are included. In addition to total cross section data, both $ω$ and $ϕ$ angular distribution data are used to constrain further the model parameters. For the $p p \to p p ω$ reaction we consider two different possibilities: with and without the inclusion of nucleon resonances. The nucleon resonances are included in a way to be consistent with the $π^- p \to ωn$ reaction. It is shown that the inclusion of nucleon resonances can describe the data better overall than without their inclusion. However, the SATURNE data in the range of excess energies $Q < 31$ MeV are still underestimated by about a factor of two. As for the $p p \to p p ϕ$ reaction it is found that the presently limited available data from DISTO can be reproduced by four sets of values for the vector and tensor $ϕNN$ coupling constants. Further measurements of the energy dependence of the total cross section near threshold energies should help to constrain better the $ϕNN$ coupling constant.
description: Latex, 37 pages, 13 figures (14 EPS-figure files), text modified, version to appear in Phys. ReV. C
Developing Power Business Plan: Empowering The Bottom Of The Pyramid
Creators: name: Baron, Scott G.
Publisher: name: My University
Year: 2004
Subjects: subject: Natural Resources and Environment
subject: Science

description: The purpose of this thesis is to develop a business model for a renewable energy company called Developing Power. This business model is a response to the need for a viable solution for effectively meeting the electricity requirements of large rural off-grid villages in developing countries. The research is presented in the form of a business plan followed by appendices that provide additional detailed support for the business model. Developing Power designs and constructs hybrid power systems, which are a combination of energy technologies (often solar, wind, and diesel power) to achieve optimal performance at the lowest cost. Developing Power hybrid systems are 1/3 the cost of traditional grid extension and provide electricity at 1/5 the cost of what consumers are currently spending on inefficient forms of energy. The Developing Power business model relies on five steps to implement the use of hybrid systems: 1) Partner with non-governmental organizations to obtain access to local markets and to develop deal flow for the company, 2) Design optimal systems in a sophisticated software program called HOMER (Hybrid Optimization Model for Electric Renewables) and construct systems based on this optimal design, 3) Establish Energy Service Companies (ESCOs) using local labor to maintain and operate the hybrid power systems, 4) Implement a prepayment system based on smart cards and electricity meters to collect payment and manage system use, and 5) Sell the complete package system to a range of potential owners, the most likely being a regional or local utility. The key finding of this research is that by incorporating important lessons learned from previous rural electrification projects with the innovative use of hybrid power optimization design and prepayment systems based on smart cards, the Developing Power business model has the potential to be a scalable solution for 30 million people that lack electricity. In addition to earning a financial return, Developing Power expects to provide $1.5 of social and environmental benefits for every $1 invested in the business.
Stellar Populations and Kinematics of Red Galaxies at z>2: Implications for the Formation of Massive Galaxies
Creators: name: van Dokkum, Pieter
name: Franx, Marijn
name: Schreiber, Natascha Forster
name: Illingworth, Garth
name: Daddi, Emanuele
name: Knudsen, Kirsten Kraiberg
name: Labbe, Ivo
name: Moorwood, Alan
name: Rix, Hans-Walter
name: Rottgering, Huub
name: Rudnick, Gregory
name: Trujillo, Ignacio
name: van der Werf, Paul
name: van der Wel, Arjen
name: van Starkenburg, Lottie
name: Wuyts, Stijn
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We recently identified a substantial population of galaxies at z>2 with red rest-frame optical colors. These distant red galaxies (DRGs) are efficiently selected by the simple observed color criterion J-K>2.3. In this paper we present NIR spectroscopy with Keck/NIRSPEC of six DRGs at 2.4
description: Accepted for publication in the Astrophysical Journal. 21 pages, 8 color figures, 7 b/w figures
title: Learners' shifting perceptions of randomness.
Creators: name: Johnston-Wilder, Peter
Publisher: name: The Open University
Year: 2006

description: This is a phenomenographic study of learners’ perceptions of randomness. Underpinning the study is a sense of randomness as a dynamic process, in which events emerge unpredictably from a generating process, into the determined past, through the curtain separating past from future. Previous research into perceptions of randomness has often used tasks in which people are asked to recognise randomness in a given sequence of outcomes. Other research has asked people to make up sequences of random outcomes. Such tasks do not carry the sense of randomness as dynamic.

Interview tasks in this study were designed to present the dynamic sense of randomness using outcomes from random generators such as dice, coins and sampling bags in situ. Interviewees were invited to talk about their experiences of making sense of the emerging sequence of outcomes.

The analysis of the interview transcripts addressed two related questions:

• What do learners believe about randomness?

• To what situations and circumstances do learners consider randomness to be an appropriate model?

The first question encompasses learners’ expectations of a random generator and the methods, strategies and heuristics by which learners discern what is random from what is not. Drawing on local and global meanings of randomness identified by Pratt (1998), the thesis argues that learners’ perspectives on randomness shift rapidly and frequently between the local and global as the learners seek to interpret the observed outcomes. Learners’ interpretations of and beliefs about randomness are found to have significant impact upon the kinds of situations to which learners are able and willing to apply the model of randomness.
THE FEMININE IDEAL AND THE ACT OF CONTEMPLATION IN THE WORKS OF THOMAS WILMER DEWING
Creators: name: Daly, Jeremiah
name: Langa, Helen
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Large supplementary files for thesis - Tropical marine biodiversity through a molecular lens: eDNA metabarcoding across oceans, habitats and time
Creators: name: Hintikka, Sanni
Publisher: name: Zenodo
Year: 2022

description: This submission contains the metadata, read count tables, mOTU tables and a table of mOTUs discarded through control correction that are part of the thesis submitted for degree of Doctor of Philosophy in Science, at University College Dublin Dec 2021. All_samples_metadata.xlxs: Contains all metadata for sequencing data submitted under European Nucleotide Archive project accession PRJEB45038. First sheet contains a large metadata table including multiplexing tag combinations. Second sheet contains tag and primer sequences. Control_correction_disc_mOTUs.xlsx: A workbook containing all mOTUs and their taxonomic annotations that were discarded as a result of control correcting the eDNA samples based on control samples (field and laboratory controls). mOTUs are split by collection country (Honduras/Kenya) and for each country, mOTUs (ASVs) are given as list of unique mOTUs discarded, and mOTUs discarded by group (control correction performed by applying a control sample to its related eDNA samples, from most exclusive to most inclusive). mOTU_table_CH_II.csv: Thesis Chapter II mOTU abundance table by sample with taxonomic annotations. Taxonomic assignments were done using RDP COI classifier. mOTU_table_CH_III.csv: Thesis Chapter III mOTU abundance table by sample with taxonomic annotations. Taxonomic assignments were done using RDP COI classifier.
Paramagnetic Meissner Effect and Finite Spin Susceptibility in an Asymmetric Superconductor
Creators: name: He, Lianyi
name: Jin, Meng
name: Zhuang, Pengfei
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A general analysis of Meissner effect and spin susceptibility of a uniform superconductor in an asymmetric two-component fermion system is presented in nonrelativistic field theory approach. We found that, the pairing mechanism dominates the magnetization property of superconductivity, and the asymmetry enhances the paramagnetism of the system. At the turning point from BCS to breached pairing superconductivity, the Meissner mass squared and spin susceptibility are divergent at zero temperature. In the breached pairing state induced by chemical potential difference and mass difference between the two kinds of fermions, the system goes from paramagnetism to diamagnetism, when the mass ratio of the two species increases.
description: 17pages, 2 figures, published in Physical Review B
An investigation into the use of cob and/or straw bale construction in non-residential buildings
Creators: name: Kao, Anthony
name: Chou, Jacky
name: Guo, Rebecca
name: Zhang, Zi
Publisher: name: The University of British Columbia
Year: 2014

description: The report investigates the use of cob and/or straw bale construction in non-residential buildings. The main purpose of the investigation is to present the possibility of having a building or a section of a building be constructed at the UBC Farm. The new structure will act as a farm centre managed by the Centre for Sustainable Food Systems. At the farm centre, students, professors and the general public will have the opportunity to learn about sustainable technologies. The investigation begins by identifying what cob and straw bale is and how it is used in the construction of buildings. Additionally, the similarities and differences of cob and straw bale construction are explored. Furthermore, three case studies of non-residential cob buildings are described and summarized. Next, a triple bottom line assessment was used to evaluate the possibility of using cob and/or straw bale construction at the UBC Farm. This assessment consists of three indicators: social, environmental and economic. The social factors include accessibility to local construction resources, safety and comfort of the building as well as the impact of such a building on the local community. The environmental issues involved exploring the carbon footprint of using cob and straw bale as well as how the material will fare in Vancouver’s climate. Lastly, the economic factors include assessing the production, labour and maintenance costs as well as the lifetime of a cob and straw bale building. Finally, after using the triple bottom line assessment to evaluate the possibility of using cob and/or straw bale construction for a new farm centre, the results recommend a section of the new farm centre be constructed using cob and straw bale. 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.”
When Gas Dynamics Decouples from Galactic Rotation: Characterizing ISM Circulation in Disk Galaxies
Creators: name: Utreras, Jose
name: Blanc, Guillermo A.
name: Escala, Andres
name: Meidt, Sharon
name: Emsellem, Eric
name: Bigiel, Frank
name: Glover, Simon C. O.
name: Henshaw, Jonathan
name: Hygate, Alex
name: Kruijssen, J. M. Diederik
name: Rosolowsky, Erik
name: Schinnerer, Eva
name: Schruba, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In galactic disks, galactic rotation sets the bulk motion of gas, and its energy and momentum can be transferred toward small scales. Additionally, in the interstellar medium, random and noncircular motions arise from stellar feedback, cloud-cloud interactions, and instabilities, among other processes. Our aim is to comprehend to which extent small-scale gas dynamics is decoupled from galactic rotation. We study the relative contributions of galactic rotation and local noncircular motions to the circulation of gas, $Γ$, a macroscopic measure of local rotation, defined as the line integral of the velocity field around a closed path. We measure the circulation distribution as a function of spatial scale in a set of simulated disk galaxies and we model the velocity field as the sum of galactic rotation and a Gaussian random field. The random field is parameterized by a broken power law in Fourier space, with a break at the scale $λ_c$. We define the spatial scale $λ_{\rm eq}$ at which galactic rotation and non-circular motions contribute equally to $Γ$. For our simulated galaxies, the gas dynamics at the scale of molecular clouds is usually dominated by noncircular motions, but in the center of galactic disks galactic rotation is still relevant. Our model shows that the transfer of rotation from large scales breaks at the scale $λ_c$ and this transition is necessary to reproduce the circulation distribution. We find that $λ_{\rm eq}$, and therefore the structure of the gas velocity field, is set by the local conditions of gravitational stability and stellar feedback.
description: The Astrophysical Journal, 20 pages, 16 figures
Advances in Researches about Agricultural Modernization in China since the 16th National Congress of the Communist Party of China
Creators: name: WANG Xiaoli
name: CHEN Shengwei
name: WANG Xiaoli
name: CHEN Shengwei
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agricultural modernization, Simultaneous development of “five modernization”, Indicator system, Research advances

description: The researches about agricultural modernization have been carried out a long time. Since the 16th National Congress of the Communist Party of China (CPC), there have been fundamental changes in China’s agricultural policies. The works of three rural issues with the development of modern agriculture rapidly became the main topic. The practice promoted researches of agricultural modernization in the connotation, characteristics, path selection, and indicator system construction. With the introduction of simultaneous development of "four modernizations" and coordinated development of "five modernizations", the theoretical researches of China's agricultural modernization have been provided with new connotations. In the existing achievements of "four modernizations" and "five modernizations" containing agricultural modernization, the characteristics, paths, indicator system and evaluation methods of agricultural modernization are constantly enriched. Through sorting out the theoretical achievements in the researches about agricultural modernization since the 16th CPC National Congress of the CPC, this paper explored the new characteristics, new paths and new indicator system of agricultural modernization, to provide reference for the further transformation and upgrading of China’s agriculture and the formulation of relevant policies.
Overview of Production of Major Tropical Crops in Asian Countries in 2014
Creators: name: WANG Jinhui
name: WANG Jinhui
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Tropical crops, Asian countries, Overview of production, International cooperation

description: On the basis of the FAO data, this paper analyzed the yield, harvested area and per unit area yield of ten major tropical crops such as natural rubber, cassava and oil palm in Asian countries in 2014, in order to provide the basic data for international cooperation researches of tropical crops.
Strong-coupling theory of magnetic-exciton-mediated superconductivity in UPd$_2$Al$_3$
Creators: name: McHale, P.
name: Thalmeier, P.
name: Fulde, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: There is compelling evidence from inelastic-neutron-scattering and tunneling experiments that the heavy-fermion superconductor UPd$_2$Al$_3$ can be understood as a dual system consisting of magnetic excitons, arising from crystal-field-split U$^{4+}$ levels, coupled to delocalised f-electrons. We have computed the superconducting transition temperature and the mass renormalisation arising from a dual model with maximal spin anisotropy using a strong-coupling approach. We find an instability to two possible opposite-spin-pairing states with even- or odd-parity gap functions. Each has a line node perpendicular to the c-direction, in agreement with NMR relaxation-rate, specific-heat and thermal-conductivity measurements. In addition, both have total spin component $S_z$=0, compatible with the observation of a pronounced Knight shift and $H_{c2}$ Pauli limiting. For parameter values appropriate to UPd$_2$Al$_3$, we determine the dependence of the superconducting transition temperature $T_c$ on a phenomenological coupling constant $g$ and we investigate the associated mass enhancement and its anisotropy.
description: 11 pages, 2 figures, 1 table
Entrepreneurs’ Ability of Specialized Farmer Cooperatives and Its Influencing Factors
Creators: name: SHEN Yiqing
name: SHEN Yiqing
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Cooperatives; Entrepreneurs’ ability; Growth ability

description: In the context of alienation of cooperative development in China, the concept of cooperative entrepreneurs’ ability was expounded based on the theory of entrepreneurial competence, and then factors restricting the development of cooperative entrepreneurs’ ability in China were analyzed. Finally, some countermeasures were put forward.
Recommendations for Sustainable Development of Selenium-enriched Functional Agriculture in Guangxi under the New Normal
Creators: name: LIU Yongxian
name: LIU Yongxian
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Selenium-enrichment, Functional agriculture, Strategic project, Development recommendations

description: Taking Scientific Outlook on Development as the guiding principle, this paper introduced the principles of innovation, coordination, green, openness and sharing. Based on gifted advantages of selenium-enriched soil and selenium-enriched industry development in Guangxi, it discussed current practice, stressed green, ecological, characteristic demonstration, transformation and upgrading, and targeted poverty alleviation. Finally, it came up with perspective, practical, and operational strategies and recommendations for development of selenium-enriched industry, to provide reference for sustainable development of selenium-enriched functional industry in Guangxi.
Gender Interaction in Selected Works of Edgar Degas
Creators: name: Daly, Jeremiah
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
3D gravity with torsion as a Chern-Simons gauge theory
Creators: name: Blagojevic, M.
name: Vasilic, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that topological 3D gravity with torsion can be formulated as a Chern-Simons gauge theory, provided a specific parameter, known as the effective cosmological constant, is negative. In that case, the boundary dynamics of the theory corresponding to anti-de Sitter boundary conditions is described by a conformal field theory with two different central charges.
description: 12 pages, RevTeX
THESE FILES ARE OUT OF DATE. Please refer to https://zenodo.org/record/5825652 for updated files
Creators: name: Hintikka, Sanni Maria
Publisher: name: Zenodo
Year: 2021

description: This submission contains the metadata, read count tables, mOTU tables and a table of mOTUs discarded through control correction that are part of the thesis submitted for degree of Doctor of Philosophy in Science, at University College Dublin Dec 2021. All_samples_metadata.xlxs: Contains all metadata for sequencing data submitted under European Nucleotide Archive project accession PRJEB45038. First sheet contains a large metadata table including multiplexing tag combinations. Second sheet contains tag and primer sequences. Control_correction_disc_mOTUs.xlsx: A workbook containing all mOTUs and their taxonomic annotations that were discarded as a result of control correcting the eDNA samples based on control samples (field and laboratory controls). mOTUs are split by collection country (Honduras/Kenya) and for each country, mOTUs (ASVs) are given as list of unique mOTUs discarded, and mOTUs discarded by group (control correction performed by applying a control sample to its related eDNA samples, from most exclusive to most inclusive). mOTU_table_CH_II.csv: Thesis Chapter II mOTU abundance table by sample with taxonomic annotations. Taxonomic assignments were done using RDP COI classifier. mOTU_table_CH_III.csv: Thesis Chapter III mOTU abundance table by sample with taxonomic annotations. Taxonomic assignments were done using RDP COI classifier.
Characteristics of Cheuopodium quinoa and Development Recommendations
Creators: name: WEI Zhimin
name: ZHOU Hanzhang
name: XIA Xueyan
name: LIU Fei
name: LIU Meng
name: ZHAO Yu
name: LI Shunguo
name: LU Wei
name: WEI Zhimin
name: ZHOU Hanzhang
name: XIA Xueyan
name: LIU Fei
name: LIU Meng
name: ZHAO Yu
name: LI Shunguo
name: LU Wei
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Cheuopodium quinoa, Nutritional value, Development and utilization

description: Cheuopodium quinoa is annual Chenopodiaceae Cheuopodium herbaceous dicotyledon. It originated in the Andes in South America and has a planting history of more than 5000 years. Due to its unique characteristics, Cheuopodium quinoa has received wide attention in recent years. This paper elaborated the biological characteristics, nutritional value, utilization approach and economic benefits of Cheuopodium quinoa, introduced main problems in the development of Cheuopodium quinoa industry, and finally came up with recommendations for the development Cheuopodium quinoa industry in China.
Triple bottom line assessment of transport options for the UBC farm
Creators: name: Abraham, Aaron George
name: Friday, Evan
name: Chang, Jay
name: Aggarwal, Rushil
Publisher: name: The University of British Columbia
Year: 2014

description: This report investigates and analyzes viable vehicle options to be used at the UBC Farm using Triple bottom line assessment. These options include powering the vehicle with the traditional fossil fuels, natural gas, biodiesel, or use a hybrid or battery powered electric vehicle. After collaborative research on these methods, this report recommends the use of Biodiesel blended with petroleum diesel with a ratio of 1:4 as the fuel source, which is the most economical, social and sustainable choice with optimal performance. In order to make a decision, a few assumptions were made which were the main contributing factors in the final decision of the report. The assumptions were that the truck will be used on a rough terrain which suggests that a four wheel drive system is high recommended, and that the vehicle must have a descent amount of power so it can tow trailers and such. Another assumption made was that the financing for this vehicle is limited. These assumptions along with few specified requirements for the vehicle were the deciding factors in the conclusion. The problem states that the truck must at least be operational for next three years thus the economical decision was made based on the average cost of the different options for the vehicle over the span of three years. This eliminates the electric and natural gas vehicles due to their high initial over head cost in comparison to a regular fuel vehicle. Diesel and gas vehicles lack the social and environmental aspect of the assessment thus leaving biodiesel as the top choice. After some research it was found that using 100% biodiesel can have a small initial over head charge as well and also few issues with maintenance. In order to overcome these issues, it was decided to use a 20% blend of biodiesel and petroleum diesel (also called B20) since it eliminates any over head charge for modifying most of the vehicles manufactured after 1993 and it also eliminates few issues B100 (100% biodiesel) might have. The B20 blend provides a cleaner and more sustainable fuel source while keeping the performance of the vehicle intact. Using biodiesel also provides the farm with an opportunity to work with the UBC’s CHBE Sustainability Club. In conclusion, biodiesel is the most optimal choice when considering all three aspects of a triple bottom line assessment: environmental, economical and social. 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.”
Cavityless self-organization of ultracold atoms due to the feedback-induced phase transition
Creators: name: Ivanov, Denis A.
name: Ivanova, Tatiana Yu.
name: Caballero-Benitez, Santiago F.
name: Mekhov, Igor B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Feedback is a general idea of modifying system behaviour depending on the measurement outcomes. It spreads from natural sciences, engineering, and artificial intelligence to contemporary classical and rock music. Recently, feedback has been suggested as a tool to induce phase transitions beyond the dissipative ones and tune their universality class. Here, we propose and theoretically investigate a system possessing such a feedback-induced phase transition. The system contains a Bose-Einstein condensate placed in an optical potential with the depth that is feedback-controlled according to the intensity of the Bragg-reflected probe light. We show that there is a critical value of the feedback gain where the uniform gas distribution loses its stability and the ordered periodic density distribution emerges. Due to the external feedback, the presence of a cavity is not necessary for this type of atomic self-organization. We analyze the dynamics after a sudden change of the feedback control parameter. The feedback time constant is shown to determine the relaxation above the critical point. We show as well that the control algorithm with the derivative of the measured signal dramatically decreases the transient time.
Migration of Selenium in Soil-rice-human System and Its Health Risk Assessment in Enshi
Creators: name: ZHAO Han
name: ZHAO Han
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Selenium, Soil, Rice, Bioaccessibility, Risk of selenium poisoning

description: In order to to provide scientific reference for the management and development of selenium resources in Enshi, four soil samples and four relevant rice samples were collected from four regions of Enshi, and then selenium content in the soil and rice samples were measured by ICP-MS. Afterwards, the occurrence forms of selenium in the soil samples were detected by continuous extraction. At last, the bioavailability of selenium in rice was studied by the in vitro gastrointestinal model. The results showed that selenium content in soil was 0.15-5.42 mg/kg in Enshi. The proportion of water-soluble selenium in soil was the lowest, ranging from 1.41% to 3.80%; the proportion of residual selenium was the highest, reaching 36.1%-41.7%. Besides, selenium content in rice was 0.07-1.61 mg/kg, and the bioconcentration factor of selenium in rice was 0.22-0.48. The bioaccessibility of selenium in rice ranged from 45.7% to 56.4% in the stomach and from 58.4% to 68.5% in the small intestine. In addition, the daily intake of selenium per capita (PDI) in Yutangba, Changping, Shadi, and Taiyanghe was 490, 26, 132 and 57 μg/d, indicating that people in Yutangba had the risk of chronic selenium poisoning, and people’s diet was rich in selenium in Shadi and Taiyanghe, while people’s diet was deficient in selenium in Changping.
Scammarctus Holthuis 2002, n. gen.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Scammarctus

description: Genus Scammarctus n. gen.
 TYPE AND ONLY SPECIES. — Scyllarus batei Holthuis, 1946 (= Arctus orientalis Bate, 1888) by present designation.
 ETYMOLOGY. — From skamma (Greek, latinized to scamma), trench, gutter, and Arctus De Haan, 1849, a junior synonym of Scyllarus Fabricius, 1775; in reference to the characteristic gutter-like anterior part of the thoracic sternum.
DIAGNOSIS. — Carapace with only pregastric, gastric and cardiac teeth in the median line; rostral tooth absent. Few tubercles between the carapace ridges. Abdomen with a slightly elevated median carina, without narrow arborescent grooves. Fourth antennal segment with a single oblique dorsal carina. Pereiopods slender. Dactyli of P.3-P.5 with a pair of dorsal fringes of short hairs. No hairy fringe on the dorsal margin of propodus of P.4 and P.5. Anterior part of thoracic sternum gutter-like sunken and prolonged forward between the bases of the third maxillipeds; its anterior margin convex, sometimes with a small median tubercle, not incised in the median. No median tubercles on the sternum and no posterior teeth.
DISTRIBUTION. — Indo-West Pacific region.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on page 520, DOI: 10.5281/zenodo.4689240
Nationalism and social media in China: a case study of Chinese nationalist movement against Muslim minorities on Sina Weibo
Creators: name: Liu, Yuchao
Publisher: name: University of Westminster
Year: 2024

description: This thesis provides a case study of the Han nationalism on Sina Weibo which attacks Muslim minorities and current official ethnic policies. This thesis mainly uses Melucci’s (1996) framework of collective identity process to analyse this movement, discussing how the national identity and definition of nation evolve within it. By using case study approach and textual analysis method to study the data collected from Sina Weibo, this thesis is belonging to qualitative research. This thesis reveals that under the influence of both platform and government, the Han nationalist movement has forcibly adopted the official nationalist discourses to construct their narratives and ideas to avoid intervention and prosecution from government. This thesis also reveals that the CCP government has silently tolerated this movement that de facto challenges its power on ethnic issue.
title: The potential beneficial role of anti-platelet/anti-coagulant medications on diabetic retinopathy: A Scoping Review Protocol
Creators: name: Draud, Sarah
name: Wang, Qing Jun
name: Robinson, Lauren
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Endocrinology, Diabetes, and Metabolism
subject: Ophthalmology
subject: anticoagulation
subject: anticogulants
subject: antiplatelet
subject: diabetes
subject: diabetic retinopathy
subject: microvascular disease
subject: platelet hyperactivity
subject: platelets

description: Diabetic retinopathy (DR) is a prevalent microvascular complication of diabetes mellitus (DM, both types 1 and 2), affecting millions of individuals worldwide. DM is known to induce changes in platelet function and hemostasis, thereby elevating the risk of thrombotic incidents. The hyperglycemic environment in DM can trigger platelet hyperactivity, potentially exacerbating the onset and progression of DR. Despite the intricate pathophysiology of DR, which involves oxidative stress, inflammation, retinal neovascularization, and the disruption of the blood-retina barrier, the specific mechanisms underlying platelet hyperactivity in the microvasculature of DM patients remain inadequately explored. Antiplatelet and anticoagulation medications have proven beneficial in preventing macrothombosis events in patients with DM. Further understanding of their therapeutic and prophylactic effects on DR could improve the understanding of underlying mechanisms and the treatment of not only DR, but other microvascular complications.

This study’s purpose is to conduct a scoping review on the current literature surrounding the impact of antiplatelet and anticoagulant medications on patients with diabetic retinopathy.
Biological Evaluation Based Quality Management of Water Resources in Small Xingkai Lake
Creators: name: CHAI Qingyu
name: JU Yongfu
name: CHAI Qingyu
name: JU Yongfu
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Small Xingkai Lake, Quality management of water resources, Biological evaluation

description: Taking the water ecosystem of Small Xingkai Lake as research object, through the survey and analysis of aquatic organism indicators, this paper established an ecosystem integrity evaluation system with the biological integrity as the criterion layer. Using the index of biological integrity and comprehensive health index, it evaluated the health status of water ecosystem of Small Xingkai Lake.
Speed-up through entanglement -- many-body effects in neutrino processes
Creators: name: Bell, Nicole F.
name: Rawlinson, Andrew A.
name: Sawyer, R. F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a system containing many particles of identical kinematics with a zero range interaction that scatters one from the other, and with the possible exchange of an attribute. Taking an initial condition in which the attribute is asymmetrically distributed in the regions of momentum space occupied by the particles, we study the rate at which it becomes uniformly distributed, through collisions. We find, in some circumstances, a rate that is much faster than that which would be estimated from cross-sections. This behavior is attributable in some general sense to N-particle entanglement. We suggest applications to neutrino physics, where the attribute is neutrino flavor.
description: 13 pages, 3 figures. Note added; Version to appear in Phys. Lett. B
Antarctus Holthuis 2002, n. gen.
Creators: name: Holthuis, Lipke B.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Scyllaridae
Antarctus

description: Genus Antarctus n. gen.
 TYPE AND ONLY SPECIES. — Scyllarus mawsoni Bage, 1938 by present designation.
 ETYMOLOGY. — From the Greek antarktikos (southern), latininized to antarcticus, shortened to provide the ending - arctus, based on the generic name Arctus De Haan, 1849. The name is given to indicate that this is the most southern of the scyllarid genera, its range extending closest to the Antarctic.
DIAGNOSIS. — Carapace with rostral, pregastric, gastric and cardiac teeth. Abdomen without arborescent markings; somites II to IV each with a transverse groove and a median longitudinal carina. The tips of pleura II to IV are acute and directed somewhat back. Fourth segment of antenna with two strong oblique carinae; the inner of these traversing the segment from the base to the apex. The anterior margin of this segment with five to eight teeth, the inner two largest; the outer margin has two (or one) large teeth. The pereiopods 2 to 5 are slender, without fringes of long hairs. On the anterior margin of the thoracic sternum the two anterolateral teeth form a deep sharply V-shaped median incision.
DISTRIBUTION. — S and E coast of Australia from Eucla, Western Australia to Port Stephens, New South Wales.
REMARKS
A more extensive discussion of the type species will be given in a work in preparation by Dr John C. Yaldwyn.
description: Published as part of Holthuis, Lipke B., 2002, The Indo-Pacific scyllarine lobsters (Crustacea, Decapoda, Scyllaridae), pp. 499-683 in Zoosystema 24 (3) on page 528, DOI: 10.5281/zenodo.4689240
Design of Farmland Water Conservancy and Irrigation Management System Based on GIS
Creators: name: ZHANG Feng
name: DONG Linying
name: ZHANG Feng
name: DONG Linying
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: GIS, Farmland water conservancy, Farmland irrigation, Data information

description: The farmland irrigation project is an important part of China's water conservancy project. To keep abreast of the farmland water conservancy and various related environmental parameters, we can use the external sensors to acquire real-time data, employ the computer technology, networking and communication technology, database technology, GIS technology, component technology and other advanced modern information technologies combined with the automated water conservancy technology, in order to build an accurate, efficient, fast, comprehensive, standardized decision support system integrating farmland water conservancy and irrigation information collection, transmission, storage, management and analysis. In this paper, we give details about the overall framework design of farmland water conservancy and irrigation management system based on GIS, information collection and data input, and information processing and data output, to provide a reference for the digital water conservancy construction in China.
Integrality at a prime for global fields and the perfect closure of global fields of characteristic p>2
Creators: name: Eisentraeger, Kirsten
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11U05 (Primary); 03B25 (Secondary)

description: Let k be a global field and \pp any nonarchimedean prime of k. We give a new and uniform proof of the well known fact that the set of all elements of k which are integral at \pp is diophantine over k. Let k^{perf} be the perfect closure of a global field of characteristic p>2. We also prove that the set of all elements of k^{perf} which are integral at some prime \qq of k^{perf} is diophantine over k^{perf}, and this is the first such result for a field which is not finitely generated over its constant field. This is related to Hilbert's Tenth Problem because for global fields k of positive characteristic, giving a diophantine definition of the set of elements that are integral at a prime is one of two steps needed to prove that Hilbert's Tenth Problem for k is undecidable.
description: 10 pages; minor revisions made
Research and Analysis on Cooling Capacity of Temperature Adjustment Equipments in Agricultural Multi-span Greenhouse
Creators: name: WANG Dong
name: YANG Xiaohu
name: WANG Dong
name: YANG Xiaohu
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agricultural production, Multi-span greenhouse, Temperature adjustment equipment, Cooling capacity, Economic benefit

description: The high summer indoor temperature in agricultural greenhouse is not conducive to crop growth, so it is necessary to cool the greenhouse. In this study, taking the agricultural multi-span greenhouse with strong temperature adjustment ability for example, we make an experimental analysis on the temperature changes inside and outside the greenhouse under nine different equipment combinations (fan, skylight, sunshade, sunshade+fan, cooling pad+fan, skylight+fan, sunshade+skylight, sunshade+fan+cooling pad, sunshade+skylight+fan), respectively, and conduct the overall assessment on the measures to cool the summer agricultural greenhouse, in order to provide a reference for selecting a cost-effective cooling method for greenhouse. Tests show that the three treatment modes of fan, sunshade and sunshade+fan almost have no cooling capacity; skylight, sunshade+skylight have cooling capacity, but the effect is slow; cooling pad+fan, sunshade+skylight+fan can reduce the indoor temperature, but the effect is not very good; skylight and fan have good cooling effect; sunshade+fan+cooling pad has obvious cooling effect, which can well meet the cooling needs in the summer greenhouse.
Explicit and approximate solutions for a classical hyperbolic fragmentation equation using a hybrid projected differential transform method
Creators: name: Yadav, Nisha
name: Ansar, Zeeshan
name: Singh, Randhir
name: Das, Ashok
name: Singh, Sukhjit
name: Heinrich, Stefan
name: Singh, Mehakpreet
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 49
subject: Mathematical sciences
classificationCode: 40
subject: Engineering

description: Population balance equations are widely used to study the evolution of aerosols, colloids, liquid–liquid dispersion, raindrop fragmentation, and pharmaceutical granulation. However, these equations are difficult to solve due to the complexity of the kernel structures and initial conditions. The hyperbolic fragmentation equation, in particular, is further complicated by the inclusion of double integrals. These challenges hinder the analytical solutions of number density functions for basic kernel classes with exponential initial distributions. To address these issues, this study introduces a new approach combining the projected differential transform method with Laplace transform and Padé approximants to solve the hyperbolic fragmentation equation. This method aims to provide accurate and efficient explicit solutions to this challenging problem. The approach’s applicability is demonstrated through rigorous mathematical derivation and convergence analysis using the Banach contraction principle. Additionally, several numerical examples illustrate the accuracy and robustness of this new method. For the first time, new analytical solutions for number density functions are presented for various fragmentation kernels with gamma and other initial distributions. This method significantly enhances solution quality over extended periods using fewer terms in the truncated series. The solutions are compared and verified against the finite volume method and the homotopy perturbation method, showing that the coupled approach not only estimates number density functions accurately but also captures integral moments with high precision. This research advances computational methods for particle breakage phenomena, offering potential applications in various industrial processes and scientific disciplines.
Dendriform Algebras Relative to a Semigroup
Creators: name: Aguiar, Marcelo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17D25, 17D99, 18D50

description: Loday's dendriform algebras and its siblings pre-Lie and zinbiel have received attention over the past two decades. In recent literature, there has been interest in a generalization of these types of algebra in which each individual operation is replaced by a family of operations indexed by a fixed semigroup $S$. The purpose of this note is twofold. First, we add to the existing work by showing that a similar extension is possible already for the most familiar types of algebra: commutative, associative, and Lie. Second, we show that these concepts arise naturally and in a unified manner from a categorical perspective. For this, one simply has to consider the standard types of algebra but in reference to the monoidal category of $S$-graded vector spaces.
description: published journal version
Degas and Photography : Influences? And Passions!
Creators: name: Infeld, Marc David
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option