cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Phase Estimation from Atom Position Measurements
Creators: name: Chwedenczuk, Jan
name: Piazza, Francesco
name: Smerzi, Augusto
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the measurement of the position of atoms as a means to estimate the relative phase between two Bose-Einstein condensates. First, we consider $N$ atoms released from a double-well trap, forming an interference pattern, and show that a simple least-squares fit to the density gives a shot-noise limited sensitivity. The shot-noise limit can instead be overcome by using correlation functions of order $\sqrt{N}$ or larger. The measurement of the $N\mathrm{th}$-order correlation function allows to estimate the relative phase at the Heisenberg limit. Phase estimation through the measurement of the center-of-mass of the interference pattern can also provide sub-shot-noise sensitivity. Finally, we study the effect of the overlap between the two clouds on the phase estimation, when Mach-Zehnder interferometry is performed in a double-well.
description: 20 pages, 6 figures
Porosity in configured structures : effect of ply drops and caul sheets in the processing of composite parts
Creators: name: Roy, Martin
Publisher: name: University of British Columbia
Year: 2015

description: Fiber reinforced polymer composites offer a variety of processing advantages in the manufacturing of high performance structures. However, due to a variety of potential quality defects, there is a great deal of risk associated with composite processing. Amongst these numerous defects, porosity has always been one of critical concern. Although there exists a great deal of literature on the subject, the bulk of existing research to date is restricted to the processing of flat uniform parts. As such, there exists a discrepancy between the current academic understanding and the practical knowledge needed in current practice. The objective of this thesis is to advance our knowledge of porosity to processing scenarios commonly seen in current practice. This has been done by conducting a comprehensive examination of the relationship between the mechanisms driving void evolution and the use of two commonly used structural configurations. These are ply drops and caul sheets. In this study, a series of configured composite parts were manufactured to parametrically assess the effect of ply drops and caul sheets both separately and in combination. The porosity content and final thickness profile of the parts were evaluated through optical microscopy and thickness measurements. The results from this parametric study show that resin pressure shielding due to lack of compliance between the laminate and the caul sheet can be a primary cause of porosity. It has also been found that lack of compliance caused resin migration which carries with it adverse effects on final part quality. The resin pressure distribution of ply-drop laminates processed with and without caul sheets was tracked in-situ through the use of instrumented tooling. The results from these experiments support the findings of the parametric study and provide a comprehensive understanding of the dominant mechanisms. These mechanisms where simulated with state of the art finite element software. These simulations demonstrate that commercially available software packages can be used to enhance our understanding of void evolution in complex processing scenarios. As such, the findings presented in this thesis are of great engineering value to current practices since they can be applied to a wide variety of applications.
Effective dynamics of the hybrid quantization of the Gowdy T^3 universe
Creators: name: Brizuela, David
name: Marugan, Guillermo A. Mena
name: Pawlowski, Tomasz
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The quantum dynamics of the linearly polarized Gowdy T^3 model (compact inhomogeneous universes admitting linearly polarized gravitational waves) is analyzed within Loop Quantum Cosmology by means of an effective dynamics. The analysis, performed via analytical and numerical methods, proves that the behavior found in the evolution of vacuum (homogeneous) Bianchi I universes is preserved qualitatively also in the presence of inhomogeneities. More precisely, the initial singularity is replaced by a big bounce which joins deterministically two large classical universes. In addition, we show that the size of the universe at the bounce is at least of the same order of magnitude (roughly speaking) as the size of the corresponding homogeneous universe obtained in the absence of gravitational waves. In particular, a precise lower bound for the ratio of these two sizes is found. Finally, the comparison of the amplitudes of the gravitational wave modes in the distant future and past shows that, statistically (i.e., for large samples of universes), the difference in amplitude is enhanced for nearly homogeneous universes, whereas this difference vanishes in inhomogeneity dominated cases. The presented analysis constitutes the first systematic effective study of an inhomogeneous system within Loop Quantum Cosmology, and it proves the robustness of the results obtained for homogeneous cosmologies in this context.
description: 21 pages, 11 figures, RevTex4-1 + BibTex
Removal of Copper (II) and Lead (II) from hydrometallurgical effluent onto cellulose nanocomposites: mechanistic and Levenberg-Marquardt in Artificial Neural Network modelling
Creators: name: Banza, Musamba
name: Rutto, Hilary
Publisher: name: EQA - International Journal of Environmental Quality
Year: 2023

description: A well-designed adsorption system should meet the requirements for high efficiency while remaining cost and time effective. nanocellulose materials have a proven track record as viable adsorbent alternatives. Cellulose is a renewable raw material that can be used to develop an adsorbent for heavy metal ions removal. In this study, CNCs were modified with EDTA and used as adsorbents to remove Pb(II) and Cu (II) ions from a mixture of metal ions synthesized solution. The modified CNCs were characterized using Fourier transform infrared (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and thermogravimetric analysis (TGA) surface area. SEM results showed that CNCs are porous, have narrow particles size, and FTIR results revealed that the functional group responsible for the lead ions removal was mainly carboxylates (-COO2-). The XRD diffraction pattern showed that the CNCs possessed the cellulose crystalline configuration. The effects of the sorbent dosage, contact time, pH, and initial on the removal efficiency of the metal cations were examined. The absorption mechanism was described via four mechanistic models: Film diffusion, Weber and Morris, Dummwald-Wagner, and Bangham. The Artificial Neural Network (ANN) model predicted the adsorption of heavy metal ions with incredible accuracy, with an adsorption capacity of 250 mg/g for Copper and 270 mg/g for lead. Film diffusion was identified as the rate-limiting process via mechanistic modelling.
description: EQA - International Journal of Environmental Quality, Vol. 54 (2023)
Mycorrhizal fungi : unlocking their ecology and role in the establishment and growth performance of different conifer species in nutrient-poor coastal forests
Creators: name: Guichon, Shannon Heather Ann
Publisher: name: University of British Columbia
Year: 2015

description: This thesis explored the fungal communities of arbuscular mycorrhizal-dominated Cedar-Hemlock (CH) and ectomycorrhizal-dominated Hemlock-Amabilis fir (HA) forests on northern Vancouver Island, British Columbia, Canada and examined the role of mycorrhizal inoculum potential for conifer seedling productivity. Objectives of this research project were to: (1) examine the mycorrhizal fungal communities and infer the inoculum potential of CH and HA forests, (2) determine whether understory plants in CH and HA forest clearcuts share compatible mycorrhizal fungi with either western redcedar (Thuja plicata) or western hemlock (Tsuga heterophylla), (3) test whether differences in mycorrhizal inoculum potential between forest types influence attributes of seedling performance during reforestation and (4) test effectiveness of providing appropriate mycorrhizal inoculum at the time of planting on conifer seedling performance. Molecular and phylogenetic techniques were utilized to compare mycorrhizal fungal diversity between forest types and to identify mycorrhizal fungal associates of the plant species occurring in clearcuts. In a field trial utilizing seedling bioassays, the role of mycorrhization of western redcedar and western hemlock on seedling growth was evaluated; reciprocal forest floor transfers from uncut forests were incorporated into the project design as inoculation treatments. Though diversity was similar, ectomycorrhizal and saprophytic fungal community composition significantly differed between CH and HA forests; arbuscular mycorrhizae were widespread in CH forests, but rare in HA forests. There was high similarity of arbuscular mycorrhizal fungi to those found in western redcedar among the dominant plant species colonizing CH clearcuts, including the ericoid plant Gaultheria shallon and in Blechnum spicant growing sparsely in HA clearcuts. No alternative ectomycorrhizal host species were detected. Mycorrhization greatly influenced productivity of western redcedar seedlings; without mycorrhizal inoculum, redcedar did not achieve its full growth potential in HA clearcuts. Mycorrhization of western hemlock seedlings did not differ between forest clearcut type or treatment group; however, an inhibitory effect of forest floor collected under mature western redcedar trees on the growth of western hemlock seedlings was unexpectedly detected. These results have implications for sustainable forest management practices, including retention of legacy trees and plants with timber harvesting and inoculation of seedlings with mycorrhizal fungi at the time of planting.
On the abundance of non-cometary HCN on Jupiter
Creators: name: Moses, Julianne I.
name: Visscher, Channon
name: Keane, Thomas C.
name: Sperier, Aubrey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Using one-dimensional thermochemical/photochemical kinetics and transport models, we examine the chemistry of nitrogen-bearing species in the Jovian troposphere in an attempt to explain the low observational upper limit for HCN. We track the dominant mechanisms for interconversion of N2-NH3 and HCN-NH3 in the deep, hightemperature troposphere and predict the rate-limiting step for the quenching of HCN at cooler tropospheric altitudes. Consistent with other investigations that were based solely on time-scale arguments, our models suggest that transport-induced quenching of thermochemically derived HCN leads to very small predicted mole fractions of hydrogen cyanide in Jupiter's upper troposphere. By the same token, photochemical production of HCN is ineffective in Jupiter's troposphere: CH4-NH3 coupling is inhibited by the physical separation of the CH4 photolysis region in the upper stratosphere from the NH3 photolysis and condensation region in the troposphere, and C2H2-NH3 coupling is inhibited by the low tropospheric abundance of C2H2. The upper limits from infrared and submillimeter observations can be used to place constraints on the production of HCN and other species from lightning and thundershock sources.
description: 56 pages, 0 tables, 6 figures. Submitted to Faraday Discussions [in press]
The factors that influence prokaryotic and eukaryotic community structure in indoor dust
Creators: name: Pakpour, Sepideh
Publisher: name: University of British Columbia
Year: 2015

description: Buildings are complex ecological systems that support a high diversity of prokaryotic and eukaryotic communities. Since many of these organisms interact with humans and their activities, and adding the considerable amount of time modern humans spend indoors, it is critical to understand the taxonomic composition of indoor biota as well as the ecological processes and environmental factors that may influence their diversity and composition. In this thesis, I report on studies where I employed a Next-Generation DNA Sequencing technique, monitored 668 environmental factors and occupants’ activities, conducted advanced multivariate statistical analyses, and demonstrated that community composition of different organisms in indoor environments, including Fungi, Bacteria, and Animals may be influenced by different building characteristics, furnishings, type of occupants as well as their activities. In addition, this is the first study reporting the presence of Archaea in household dust as a common part of the indoor microbiota; however, the archaeal abundance in indoor environment was considerably lower than Bacteria, perhaps because of less available sources contributing to indoor Archaea or more environmental filtering preventing archaeal establishment in indoor environments. This also can be interpreted that the indoor archaeal assemblages are probably allochthonous for the most part (passive entrants of archaeal traces from different sources), in contrast, to those of the Bacteria which are a mixture of allochthonous and autochthonous (live and active inhabitants of dust). Finally, in a separate study with samples collected over a 20-year period, I found that the total airborne fungal spore count in outdoor air would likely increase significantly in future years as a result of climate change, indicating a likely rise in indoor fungal spore abundance as well. Overall, this study as one of the first to look for members of all domains of life in a single cohort study, has advanced our understanding of biological components of residential houses and illustrated how community composition of different organisms in the indoor environment may be influenced by different building characteristics, furnishing, and its occupants. I believe such comprehension of indoor ecology can help researchers design intervention studies to provide public health policy decision makers with new tools to improve the built environment.
LOPES, António, s.j - Enigma Pombal. Lisboa: Roma Editora, 2002. 262 p.
Creators: name: Franco, José Eduardo
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Traffic air pollution and urban sustainability: an assessment of strategic road intersections in Owerri urban, Nigeria
Creators: name: Emereibeole, Enos Ihediohamma
name: Mgbeahuruike, Leonard Udochi
name: Uyo, Chijioke Ndukwe
name: Unegbu, Rapuruchukwu Nobert
name: Edo, Friday Anegbode
Publisher: name: EQA - International Journal of Environmental Quality
Year: 2023

description: An assessment of the ambient air quality in selected road intersections in Owerri Urban, Southeastern Nigeria was carried out. Random sampling of 5 air pollutant species: NO2, CO, SO2, and PM 2.5 and PM 10, from 4 major points coded SP1 to SP4 were carried out daily, morning, afternoon and evening sections for 14 days in the dry season. The levels of each air pollutant species were determined in-situ using standard sampling devices. The coordinates of the sampled locations were recorded using GPS equipment. The results obtained revealed elevated levels of pollutants in all the selected intersections. NO2 ranged between 0.055-0.089 ppm, CO ranged between 0.70-12.70 ppm, SO2 ranged between 0.47-0.86 ppm, PM 2.5 ranged between 0.008-0.027 ppm whereas PM 10 ranged between 0.019 - 0.067 ppm in all the locations. SO2 level at SP1 (0.47±0.15), SP2 (0.86±0.21), SP3 (0.71±0.06), and SP4 (0.74±0.13) were found to be above the National Ambient Air Quality Standard (NAAQS) and Federal Ministry of Environment (FMEnv) limits. PM (2.5 & 10) was concentrated in SP4 whereas elevated levels of CO and SO 2 were observed at SP3 and SP2. SP3 was observed to have elevated levels of NO2. Changes could be attributed to high density of vehicles observed during peak hours and the presence of building clusters. The selected road intersections may not be safe due to cumulative impacts to various socio-economic and health effects triggered by prolonged exposures. Greening approach towards low-carbon cities and urban sustainability becomes essential.
description: EQA - International Journal of Environmental Quality, Vol. 54 (2023)
Reconstructing f(T)-gravity from the polytropic and different Chaplygin gas dark energy models
Creators: name: Karami, K.
name: Abdolmaleki, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Motivated by a recent work of us [1], we reconstruct the different f(T)-gravity models corresponding to a set of dark energy scenarios containing the polytropic, the standard Chaplygin, the generalized Chaplygin and the modified Chaplygin gas models. We also derive the equation of state parameter of the selected f(T)-gravity models and obtain the necessary conditions for crossing the phantom-divide line.
description: 7 pages
Team selection transition processes in competitive sport
Creators: name: McEwen, Carolyn Elizabeth
Publisher: name: University of British Columbia
Year: 2015

description: Team selection processes are an inherent part of high performance sport and may impact athletes’ sport engagement and psychological adjustment (Samuel & Tenenbaum, 2011a). The purpose of this program of research was to advance understanding of high performance developmental and elite athletes’ experiences with significant team selection processes. Two prospective-longitudinal studies were conducted to achieve this objective. The first study examined how elite athletes negotiated the 2012 Olympic team selection process from an Interpretative Phenomenological Analysis perspective (Smith, Flowers, & Larkin, 2009). Three primary themes emerged from analysis of the interviews including the Olympic goal, navigating the Olympic team selection process, and moving on from the Olympics. Results suggested that participants organized their athletic and vocational endeavours around their goal of being selected to compete in the Olympic Games, demonstrating significant investment and sacrifice. To cope with non-selection, athletes reappraised where the 2012 Olympic Games fit within their athletic careers, engaged in new and meaningful athletic, social, and vocational goals, and emphasized the prominence of social and vocational identities unrelated to sport. Study two examined how stress and adaptational processes were impacted by the 2013 Canada Summer Games (CSG) selection process. Multilevel modeling was employed to investigate changes in cognitive appraisals, emotions, coping, sport engagement, athletic goal progress, and life satisfaction in relation to athletes’ CSG selection status. Findings suggested that the CSG tryout had a meaningful impact on athletes as evidenced by changes in emotions, cognitive appraisals, and athletic goal progress in relation to their selection status. However, the CSG selection process did not affect athletes’ sport engagement or life satisfaction. Collectively, results from both studies indicated that athletes reappraised selection processes over time and varied in their emotional responses to team tryouts, highlighting the importance of investigating intrapersonal change and interpersonal differences associated with team selection events. Findings also suggested that the stage of sport career influenced the meaning athletes attached to specific selection processes and the degree to which these events influenced their life as a whole.
CUNHA, Mafalda Ferin - Persuasão e deleite na Nova Floresta do Padre Manuel Bernardes. Lisboa: FCG; FCT/MCES, 2002. 542 p.
Creators: name: Palomo, Federico
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Electron capture rates in a plasma
Creators: name: Sawyer, R. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A new general expression is derived for nuclear electron capture rates within dense plasmas. Its qualitative nature leads us to question some widely accepted assumptions about how to calculate the effects of the plasma on the rates. A perturbative evaluation, though not directly applicable to the strongly interacting case, appears to bear out these suspicions.
description: 9 pages
On the structure of the ergosurface of Pomeransky-Senkov black rings
Creators: name: Cortier, Julien
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83

description: We study the properties of the ergosurface of the Pomeransky-Senkov black rings, and show that it splits into an "inner"' and an "outer" region. As for the singular set, the topology of the "outer ergosurface" depends upon the value of parameters.
description: 14 pages, 1 figure
Descrição da cidade de Viseu: suas antiguidades e cousas notáveis que contém em si e seu Bispado, composta por uni Natural. Edição e estudo literário de Sara Augusto. Viseu: Câmara Municipal, 2002. 228 p.
Creators: name: Morujão, Maria Do Rosário Barbosa
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Chaotically spiking attractors in suspended mirror optical cavities
Creators: name: Marino, Francesco
name: Marin, Francesco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A high-finesse suspended mirror Fabry-Perot cavity is experimentally studied in a regime where radiation pressure and photothermal effect are both relevant. The competition between these phenomena, operating at different time scales, produces unobserved dynamical scenarios where an initial Hopf instability is followed by the birth of small-amplitude chaotic attractors which erratically but deterministically trigger optical spikes. The observed dynamical regimes are well reproduced by a detailed physical model of the system.
Additional file 1: of Fluid resuscitation with preventive peritoneal dialysis attenuates crush injury-related acute kidney injury and improves survival outcome
Creators: name: Zhou, Xian-Long
name: Ni, Shao-Zhou
name: Xiong, Dan
name: Cheng, Xue-Qi
name: Xu, Peng
name: Zhao, Yan
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Marine Biology

description: Table S1. General characteristics of animals (mean ± SD). Table S2. Blood cell counts (mean ± SD). (DOCX 19 kb)
Protein-solvent interactions and classical density functional theory
Creators: name: Mills, Eric A
Publisher: name: University of British Columbia
Year: 2015

description: We use classical density functional theory to investigate the interactions between solvents and proteins. We examine a diverse experimental literature to establish thermodynamic properties of protein-cosolute interaction, particularly the compensation between transfer entropy and transfer enthalpy. We develop a method of analysing the uncertainties in such measurements and use the method to resolve a long-standing debate over entropy-enthalpy compensation. We develop a classical density functional theory for interactions between proteins and cosolutes. The theory developed here ignores the solvent-solvent interaction but is nonetheless quite accurate. We use this approach to reproduce transfer free energies reported elsewhere, and show that the cDFT model captures the desolvation barrier and the temperature dependence of the transfer free energy. We use experimental values that we have analyzed to define the parameter space of a model density functional theory approach. We then extend the classical density functional theory to capture protein-water interactions, thus developing a new implicit solvent model. Along the way we give a proof that the free energy of a bath of particles in a finite external potential is independent of the external potential in the isothermal-isobaric ensemble. We finally discuss the challenges remaining in implementing our implicit solvent model.
FRANCO, José Eduardo - O mito de Portugal: a primeira História de Portugal e a sua função política. Lisboa: Roma Ed, 2000. 527 p.
Creators: name: Abreu, Luís Machado De
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
The Risk Indicators for the Return Volatility of Earnings Per Share: Evidence from Service Industry Firms Listed on the Stock Exchange of Thailand
Creators: name: Sippavit Wongsuwatt
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Earnings Per Share
Risk Indicator
Service Industry Firms
SET
MAI
Volatility

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 1-13
The 3D behavior of a twisted flux tube expanding in the corona: reconnection, writhe and jets
Creators: name: Tavabi, Ehsan
name: Koutchmy, Serge
name: Ajabshirizadeh, Ali
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We discuss some aspects of magnetic reconnection which could help in understanding many aspects of magnetic plasma interactions. We will show that the helical structure often observed in polar jets is a natural consequence of magnetic helicity conservation in 3D reconnection driven by a collision of two parts of an emerging flux tube within the single emerged loop. We perform 3D simulations by solving the time-dependent, ideal MHD equations with a uniform initial twist. We deduce that the emergence of highly twisted magnetic flux introduces several null points, which in turn causes reconnection between opposite directions of magnetic field within a single loop at nearest part and the release of the trapped twist in the form of a helical jet-like emission.
description: 2 pages, 1 figures, accepted to publish in IEEE Special Issue - Images in Plasma Science 2011
What Behaviors "Strategic Teachers" Did for Pandemic-Era Modular Learning? An Exploratory Study with Basic Education Teachers in the Philippines
Creators: name: Espa?Ola, Raymon P.
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Teacher Behaviors
Basic Education
Exploratory Factor Analysis
Modular Learning
Post-COVID

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 14-22
MARTINS, Alcina Manuela de Oliveira - O mosteiro de S. Salvador de Vairão na Idade Média: o percurso de uma comunidade feminina. Porto: Universidade Portucalense, 2001. 400 p.
Creators: name: Soalheiro, João
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
The Implications of the Depletions of Foreign Currency Reserves in Bhutan
Creators: name: Phurpa Lhamo
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: subject: Bhutan
subject: Foreign Reserves
subject: Trade Deficit
subject: Export
subject: Tourism
subject: FOS: Economics and business
subject: Remittances
subject: FDIs

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 23-35
Transcriptional silencing of endogenous retroviruses by the novel lysine methyltransferase co-repressor hnRNP K
Creators: name: Thompson, Peter Jeffrey
Publisher: name: University of British Columbia
Year: 2015

description: Histone lysine methylation is essential for mammalian development and maintenance of somatic cell identity, as evidenced by a group of Mendelian diseases and cancers linked with mutations in lysine methyltransferases (KMTs). The transcriptional silencing of a class of retrotransposons known as endogenous retroviruses (ERVs) in murine embryonic stem cells (mESCs) provides a unique model system in which to investigate epigenetic regulation by the H3K9 family of KMTs and characterize novel molecular mechanisms of relevance to human biology and disease. In mESCs, class I and II ERVs are silenced by the SETDB1/KAP1 complex, which deposits histone H3K9 trimethylation (H3K9me3). In contrast, class III MERVL ERVs are silenced by the G9a/ GLP complex, which deposits H3K9me2. The molecular mechanisms governing the recruitment of these KMTs to their genomic ERV targets remain poorly understood. The goal of this work was to identify and characterize novel factors that regulate the functions of these KMTs in ERV silencing. In the first part of my thesis work, I identified the RNA-binding protein and transcription factor hnRNP K as a novel co-repressor for the SETDB1/KAP1 complex. HnRNP K coordinates recruitment of the KMT SETDB1 by KAP1 to its ERV targets. This function of hnRNP K involves a previously uncharacterized influence on the levels of chromatin protein SUMOylation. In the second part of my thesis work, I demonstrated that MERVL elements are also repressed by hnRNP K and can remain inactive in the absence of H3K9me2, likely due to the lack of transcriptional activators. HnRNP K forms a novel RNA-dependent complex with G9a/GLP, is required for global H3K9me2 and provides a repressive barrier to MERVL expression in the presence and absence of H3K9me2. Taken together my work has provided significant insights into the epigenetic repression of ERV transcription by KMTs and demonstrates that hnRNP K is a novel co-repressor for two different KMT complexes. As recent studies have linked mutations in HNRNPK to the novel Mendelian disorder Au-Kline syndrome and cancer, these insights should also guide future studies on the role of hnRNP K in regulation of KMT-mediated signaling pathways in human disease.
MARTINS, Armando Alberto - O Mosteiro de Santa Cruz de Coimbra na Idade Média. Lisboa: Centro de História da Universidade de Lisboa, 2003. 1033 p.
Creators: name: Gomes, Saul António
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
A Sociological Review of the Post Graduate Work Permit Program as a Pathway to Permanent Residency for International Students in Canada
Creators: name: Moltaji, Golbon
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Student Migration
Post Graduate Work Permit
International Students
Immigration
Canada
International Graduates
art-based autoethnography
Immigrant Suffering
Post-graduate migration

description: This project is a multifaceted analysis of the Post Graduate Work Permit Program (PGWPP), a temporary work permit that allows international students to live and work in Canada following graduation. This dissertation explores a) the program’s development throughout the years, b) the lived experiences and the perceptions of the students who used the program for transitioning to permanent residency and, c) an art-based autoethnographic introspection about this transition. The research question focuses on how the PGWPP, which provides the government with economic projections regarding student migration, influences the social and economic integration of international students/graduates. This dissertation consists of three self-containing articles all of which employ mobilities paradigm to examine the following secondary questions and purposes: a)Article 1 is an archaeological review of the development of the program that assesses how well the program meets its objective to settle international graduates as successful future permanent residents, b)Article 2 investigates international graduates’ experiences and perspectives about their transition to permanent residency via the PGWPP, c) Article 3 investigates the impacts of migratory-related difficulties among international students on their trajectory as immigrants. Each article approaches the PGWPP from a different methodological angle to provide a comprehensive analysis of the program that ultimately considers the wellness of international students in their pathways to Canadian residency.
The Politics of Health Policy Coalitions in Implementing Community Isolation Policy: A Comparative Study in the Thai Upper Northeast Region
Creators: name: Chuthaporn Suntayakorn
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Health Politics
Policy Implementation
COVID-19
Border Provinces
Disease Prevention and Control

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 36-49
Collective behavior of heterogeneous neural networks
Creators: name: Luccioli, Stefano
name: Politi, Antonio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We investigate a network of integrate-and-fire neurons characterized by a distribution of spiking frequencies. Upon increasing the coupling strength, the model exhibits a transition from an asynchronous regime to a nontrivial collective behavior. At variance with the Kuramoto model, (i) the macroscopic dynamics is irregular even in the thermodynamic limit, and (ii) the microscopic (single-neuron) evolution is linearly stable.
description: 4 pages, 5 figures
Readiness of the Community and Customer Attitudes towards Making Packaging from Coconut Residue: A Case Study of The Kala Ake-Ban Krachom Thong Group
Creators: name: Phinyo Udomphoch
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Community Development
Customer Attitude
Coconut Fiber
Packaging
Agriculture Waste

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 50-61
The social dynamics of early bronze age China : a bio-molecular approach to the exploration of the regional and interregional interactions in Shang China
Creators: name: Cheung, Christina
Publisher: name: University of British Columbia
Year: 2016

description: The Shang Dynasty (ca 1600 – 1046 BC) is considered one of the earliest state-societies in the world, as well as the earliest literate civilization in East Asia. The last capital of the Shang Dynasty, Yinxu (located in present day Anyang, Henan, China; ca. 1250–1046 BC) is therefore a crucial site for archaeologists to understand early states and the process of state formation in early Bronze Age China. In this thesis, stable isotopes of carbon, nitrogen, and sulfur of bone collagen from a total of 379 humans from Yinxu (n=119) and 12 roughly contemporaneous neighbouring sites (n=260) are analyzed to reconstruct past dietary as well as mobility patterns for these individuals. This thesis consists of three projects. The first project examines the internal social dynamics of Yinxu by comparing the reconstructed diets of 39 individuals from Xin’anzhuang (XAZ), a residential neighbourhood located in Yinxu, with other archaeological and mortuary evidence. The second project reconstructs and compares dietary practices of sacrificial victims (n=64) with that of the local residents from XAZ, in order to address a key archaeological question that concerns the social identities of sacrificial victims found at the royal cemetery in Yinxu. The third project attempts to investigate the social dynamics of early Bronze Age China within a larger context. In addition to the 127 individuals examined in the first two projects, this project reconstructs and then compares the diets of local Yinxu inhabitants from four additional localities (n=16) with individuals (n=26) from six late Neolithic to early Bronze Age sites from the Central Plain of China. Carbon and nitrogen isotopic compositions of an additional 234 individuals from six other sites taken from published reports were also included to expand the geographic scope of this study. Results from these three studies reveal that Yinxu consisted of an agglomeration of people of different socio-cultural affiliations, further confirming the hypothesis that Yinxu was a vibrant, diverse cultural center in early Bronze Age China, where goods, ideas, technologies, and people from different cultural groups were gathered and exchanged.
GOMES, Jesué Pinharanda -A Ordem da Cartuxa em Portugal: ensaio de monografia histórica. Prefácio dos Cartuxos de Scala Coeli. Salzburg: Institut Fur Anglistik und Amerikanistik - Universitat Salzburg, 2004. 362 p., il.
Creators: name: Gomes, Saul António
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Instabilities in the dissolution of a porous matrix
Creators: name: Szymczak, Piotr
name: Ladd, Anthony J. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A reactive fluid dissolving the surrounding rock matrix can trigger an instability in the dissolution front, leading to spontaneous formation of pronounced channels or wormholes. Theoretical investigations of this instability have typically focused on a steadily propagating dissolution front that separates regions of high and low porosity. In this paper we show that this is not the only possible dissolutional instability in porous rocks; there is another instability that operates instantaneously on any initial porosity field, including an entirely uniform one. The relative importance of the two mechanisms depends on the ratio of the porosity increase to the initial porosity. We show that the "inlet" instability is likely to be important in limestone formations where the initial porosity is small and there is the possibility of a large increase in permeability. In quartz-rich sandstones, where the proportion of easily soluble material (e.g. carbonate cements) is small, the instability in the steady-state equations is dominant.
description: to be published in Geophysical Research Letters
Additional file 1 of Addressing a silent and neglected scourge in sexual and reproductive health in Sub-Saharan Africa by development of training competencies to improve prevention, diagnosis, and treatment of female genital schistosomiasis (FGS) for health workers
Creators: name: Jacobson, Julie
name: Pantelias, Anastasia
name: Williamson, Megan
name: Kjetland, Eyrun Floerecke
name: Krentel, Alison
name: Gyapong, Margaret
name: Mbabazi, Pamela Sabina
name: Djirmay, Amadou Garba
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. FGS Competencies Table.
A Second Order Confirmatory Factor Analysis of Senior High School Students' Learning and Innovation Skills Model Guidelines
Creators: name: Khongcharoen, Pratheep
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Learning and Innovation Skills Development
Learning and Innovation Skills
Second Order Confirmatory Factor Analysis

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 62-72
São Bruno na Cartuxa de Évora: IX centenário de São Bruno. Évora: Fundação Eugénio de Almeida. 2001. 106 p.
Creators: name: Jorge, Ana Maria C. M.
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Study for an Approach to Using Ghost Belief as Cultural Capital to Develop Isan Local Communities
Creators: name: Duangkamol Limwongse
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Isan Local Community Development
Embodied Cultural Capital
Level of Ghost and Spirit Belief
Community Classification

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 73-87
Momentum dependence of the symmetry potential and its influence on nuclear reactions
Creators: name: Feng, Zhao-Qing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A Skyrme-type momentum-dependent nucleon-nucleon force distinguishing isospin effect is parameterized and further implemented in the Lanzhou Quantum Molecular Dynamics (LQMD) model for the first time, which leads to a splitting of nucleon effective mass in nuclear matter. Based on the isospin- and momentum-dependent transport model, we investigate the influence of momentum-dependent symmetry potential on several isospin-sensitive observables in heavy-ion collisions. It is found that symmetry potentials with and without the momentum dependence but corresponding to the same density dependence of the symmetry energy result in different distributions of the observables. The mid-rapidity neutron/proton ratios at high transverse momenta and the excitation functions of the total $π^{-}/π^{+}$ and $K^{0}/K^{+}$ yields are particularly sensitive to the momentum dependence of the symmetry potential.
description: 12 pages, 5 figures
DIAS, Paula Cristina Barata - Regula monastica communis ou Exhortatio ad monachos ?: séc. VII, explicit: problemática, tradução, comentário. Lisboa: Edições Colibri. Faculdade de Letras de Coimbra, 2001. 190 p.
Creators: name: Jorge, Ana Maria C. M.
Publisher: name: Lusitania Sacra
Year: 2004

description: Lusitania Sacra, n. 16 (2004): Mutações Religiosas na Época Contemporânea: Figuras e Pensamento
Important Considerations for Implementing Oral Rabies Vaccination of Free-roaming Dogs in Thailand Urban Communities
Creators: name: Patcharin Sirasoonthorn
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Oral Rabies Vaccines (ORVs)
Community Dogs
Free-roaming Dogs

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 88-99
An Appreciative Inquiry of Factors Within a Primary School that are Perceived to Support Children Who Are ‘At Risk’ of Exclusion
Creators: name: Herbert, Amy
Publisher: name: University of East London
Year: 2021

description: This research is set in a time where ‘exclusion’ is still deemed an acceptable response to children who need empathy, support and understanding. Within this context, this research seeks to not only embrace positive psychology, adopting a solution-focused approach, but places social justice at its core, fully embracing the rights and views of the child. The systematic literature review conducted highlighted research on secondary schools’ exclusions and pupil referral units (PRUS) primarily after the exclusion had taken place focused on a ‘problem saturated’ narrative. The review therefore revealed a distinct lack of research focusing on preventative measures and how such measures can be employed within a primary school setting. Accordingly, this research uses Appreciative Inquiry (AI) within qualitative methodology to explore how factors within a mainstream primary school enable success for children who are at risk of exclusion (or have experienced fixed-term exclusion), according to the views of children, parents and staff. The research incorporates experiences of four children in KS2 who are at risk of exclusion, four parents/carers of those children and four members of staff within one primary school. Through the AI, underpinned by the ecological systems theory (Bronfenbrenner, 1992), the research identified a number of inter-related factors within the child’s environment, which were perceived to work to prevent exclusion. The data was analysed using deductive Thematic Analysis (TA). The findings were applied to eco-systemic theory highlighting the complex interacting systems around the child working together to prevent exclusion. These include a nurturing school ethos, a restorative approach to behaviour, a learning environment to support emotional regulation and - perhaps most crucially - the importance of relationships. The thesis concludes by reflecting on the researcher’s journey and the implications of these findings to inform future practice for Educational Psychologists when working with children who are ‘at risk’ of exclusion, with an aim to contribute to better outcomes.
The impact of female sex hormones on cigarette smoke-induced airway remodelling and mucus production
Creators: name: Tam, Anthony
Publisher: name: University of British Columbia
Year: 2016

description: Adjusting for amount of smoking, women have a 50% increased risk of COPD compared with men. It is not known what the anatomic basis/mechanism(s) of these sex-related differences in COPD might be. The main objective of this study is to characterize the impact of female sex hormones on chronic cigarette smoke-induced airway remodelling and emphysema in a murine model of COPD. We showed here for the first time that smoke-induced COPD in female compared to male mice have increased small airway remodelling, and may be biologically driven by estrogen through down-regulation of antioxidant defences and activation of TGFβ1 signalling, resulting in increased expression of collagen matrix in the airway walls. These effects can be ameliorated by ovariectomy before smoke exposure or use of the estrogen antagonist, tamoxifen, during smoke exposure, suggesting that estrogen is involved in this process. Using the flexiVent system to assess the functional relationship with the observed structural changes, we showed evidence of cigarette smoke-induced lung abnormalities. Tissue damping (G), and complex input resistance of the respiratory system (Zrs) at low oscillating frequency were elevated in female compared to male mice after smoke exposure, and this effect was attenuated after ovariectomy. Quasistatic pressure-volume curve revealed a decrease in inspiratory capacity in female mice but not in male mice after smoke exposure, and this effect was attenuated after ovariectomy. Chronic smoke exposure did not increase goblet cell expression in the distal airways of all groups, suggesting that the increase in distal airway resistance in smoke-exposed female mice is unlikely to be derived from luminal exudates. Finally, using a human bronchial epithelial cell culture model in air liquid interface, we showed that transfection with nuclear factor of activated T-cell (NFAT)c1 or NFATc2 siRNA blunted estrogen or progesterone-induced increase in MUC5AC mRNA expression, respectively. Collectively, our data showed that estrogen may be involved in the excess risk for small airways disease in a mouse model of COPD, and MUC5AC expression is regulated by estrogen and progesterone via NFATc1 and NFATc2 in normal human bronchial epithelial cells.
The Scenario of Cooperation for Developing Local Education in the Context of New Normal Education and a Sustainable Society
Creators: name: Choocheep Puthaprasert
Publisher: name: Naresuan University Graduate School
Year: 2023
Subjects: Scenario
Cooperation
Local Education
New Normal Education
A Sustainable Society

description: Journal of Community Development Research (Humanities and Social Sciences), 16, 2, 100-113