cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
(100341) Barbara Kirkhouse
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Tachyonic Instability of Reissner-Nordström-Melvin Black Holes in Einstein-Maxwell-Scalar Theory
Creators: name: Xu, Hengyu
name: Zhang, Shao-Jun
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the framework of Einstein-Maxwell-scalar theory, we studied scalar field perturbations of Reissner-Nordström-Melvin (RNM) black holes, which describes the RN black holes immersed in a uniform magnetic field. Due to the coupling to the Maxwell term, the scalar field acquires an effective mass whose square, in the presence of the magnetic field, will become negative somewhere outside the horizon for either sign of the coupling constant $α$, thus triggering the tachyonic instability and leading to spontaneous scalarization when $α$ is large enough. The magnetic field has significant influences on the waveforms and the onset of the instability, which differs for different sign of $α$. Effects of the black hole charge on the instability are also studied.
description: 16 pages, 15 figures. arXiv admin note: text overlap with arXiv:2209.02268
A Comparison of the Baryonic Tully-Fisher Relation in MaNGA and IllustrisTNG
Creators: name: Goddy, Julian S.
name: Stark, David V.
name: Masters, Karen L.
name: Bundy, Kevin
name: Drory, Niv
name: Law, David R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare an observed Baryonic Tully-Fisher Relation (BTFR) from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) and HI-MaNGA surveys to a simulated BTFR from the cosmological magnetohydrodynamical simulation IllustrisTNG. To do so, we calibrate the BTFR of the local universe using 377 galaxies from the MaNGA and HI-MaNGA surveys, and perform mock 21 cm observations of matching galaxies from IllustrisTNG. The mock observations are used to ensure that the comparison with the observed galaxies is fair since it has identical measurement algorithms, observational limitations, biases and uncertainties. For comparison, we also calculate the BTFR for the simulation without mock observations, and demonstrate how mock observations are necessary to fairly and consistently compare between observational and theoretical data. We report a MaNGA BTFR of log$_{10} (M_{ \rm Bary}/M_\odot)= (2.97 \pm 0.18)$ log$_{10} V_{ \rm Rot} + (4.04 \pm 0.41)\,\log_{10}{M_{\odot}}$ and an IllustrisTNG BTFR of log$_{10} (M_{ \rm Bary}/M_\odot) = (2.94 \pm 0.23$) log$_{10} V_{ \rm Rot} + (4.15 \pm 0.44)\,\log_{10}{M_{\odot}}$. Thus, MaNGA and IllustrisTNG produce BTFRs that agree within uncertainties, demonstrating that IllustrisTNG has created a galaxy population that obeys the observed relationship between mass and rotation velocity in the observed universe.
description: 14 pages, 7 figures
Short-Term Aggregated Residential Load Forecasting using BiLSTM and CNN-BiLSTM
Creators: name: Bohara, Bharat
name: Fernandez, Raymond I.
name: Gollapudi, Vysali
name: Li, Xingpeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Higher penetration of renewable and smart home technologies at the residential level challenges grid stability as utility-customer interactions add complexity to power system operations. In response, short-term residential load forecasting has become an increasing area of focus. However, forecasting at the residential level is challenging due to the higher uncertainties involved. Recently deep neural networks have been leveraged to address this issue. This paper investigates the capabilities of a bidirectional long short-term memory (BiLSTM) and a convolutional neural network-based BiLSTM (CNN-BiLSTM) to provide a day ahead (24 hr.) forecasting at an hourly resolution while minimizing the root mean squared error (RMSE) between the actual and predicted load demand. Using a publicly available dataset consisting of 38 homes, the BiLSTM and CNN-BiLSTM models are trained to forecast the aggregated active power demand for each hour within a 24 hr. span, given the previous 24 hr. load data. The BiLSTM model achieved the lowest RMSE of 1.4842 for the overall daily forecast. In addition, standard LSTM and CNN-LSTM models are trained and compared with the BiLSTM architecture. The RMSE of BiLSTM is 5.60%, 2.85% and 2.60% lower than the LSTM, CNN-LSTM and CNN-BiLSTM models respectively. The source code of this work is available at https://github.com/Varat7v2/STLF-BiLSTM-CNNBiLSTM.git.
description: This article has been accepted for publication in 2022 International Conference on Innovation and Intelligence for Informatics, Computing, and Technologies (3ICT). This preprint is for personal use - that is solely for the purpose of research, but republication/redistribution requires IEEE permission. Please check IEEE website for more information
Tubular hypertrophy due to work load induced by furosemide is associated with increases of IGF-1 and IGFBP-1
Creators: name: Roy, Arun
name: Venkatachalam, Manjeri
name: Clemmons, David
name: Nogami, Haruo
name: Kobayashi, Shuzo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: Tubular hypertrophy due to work load induced by furosemide is associated with increases of IGF-1 and IGFBP-1. We have examined the expression of insulin-like growth factor 1 (IGF-1), IGF binding protein-1 (IGFBP-1), and IGF binding protein-3 (IGFBP-3) in the rat distal nephron during increased cell work load and hypertrophy, induced by the diuretic, furosemide. Furosemide was given for six days to increase distal sodium delivery and uptake. To mitigate salt loss, the animals drank 0.8% NaCl and 0.1% KCl. Control rats were infused with vehicle (0.9% saline) and drank tap water. Furosemide increased urinary volume (13-fold) and sodium excretion (eightfold), and decreased urine osmolarity (fourfold). By immunocytochemistry, staining for IGF-1 and IGFBP-1 was markedly increased in distal convoluted tubules and cortical collecting ducts; both segments also underwent hypertrophy. Increased staining for the peptides was evident early (1 hr, 18 hr) after furosemide, prior to hypertrophy of cells. Whereas transcripts of IGF-1 and IGFBP-3 mRNA showed little or no increase in extracts from furosemide-treated kidney cortices, IGFBP-1 mRNA was increased threefold 18 hours after furosemide. Alterations of IGF-1 and IGFBP-1 were independent of changes in plasma aldosterone, glucocorticoids or arginine vasopressin. That IGFBP-1 mRNA increased threefold without significant changes in IGF-1 mRNA suggests that hypertrophic stimuli might initially induce the synthesis of IGF binding protein followed by the trapping of extracellular IGF-1. The present study raises the possibility of IGF-1 and IGFBP-1 being involved in processes that lead to tubular hypertrophy. IGFBP-1 may regulate these effects by binding to and interaction with IGF-1.
Toward Degree Bias in Embedding-Based Knowledge Graph Completion
Creators: name: Shomer, Harry
name: Jin, Wei
name: Wang, Wentao
name: Tang, Jiliang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: A fundamental task for knowledge graphs (KGs) is knowledge graph completion (KGC). It aims to predict unseen edges by learning representations for all the entities and relations in a KG. A common concern when learning representations on traditional graphs is degree bias. It can affect graph algorithms by learning poor representations for lower-degree nodes, often leading to low performance on such nodes. However, there has been limited research on whether there exists degree bias for embedding-based KGC and how such bias affects the performance of KGC. In this paper, we validate the existence of degree bias in embedding-based KGC and identify the key factor to degree bias. We then introduce a novel data augmentation method, KG-Mixup, to generate synthetic triples to mitigate such bias. Extensive experiments have demonstrated that our method can improve various embedding-based KGC methods and outperform other methods tackling the bias problem on multiple benchmark datasets.
description: WWW'23
(100337) Bedlington Kirkhouse
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Characterization of the infectious reservoir of malaria with an agent-based model calibrated to age-stratified parasite densities and infectiousness
Creators: name: Gerardin, Jaline
name: Ouedraogo, Andre Lin
name: McCarthy, Kevin A.
name: Kouyate, Bocar
name: Eckhoff, Philip A.
name: Wenger, Edward A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Background Elimination of malaria can only be achieved through removal of all vectors or complete depletion of the infectious reservoir in humans. Mechanistic models can be built to synthesize diverse observations from the field collected under a variety of conditions and subsequently used to query the infectious reservoir in great detail. Methods The EMOD model of malaria transmission was calibrated to prevalence, incidence, asexual parasite density, gametocyte density, infection duration, and infectiousness data from 9 study sites. The infectious reservoir was characterized by diagnostic detection limit and age group over a range of transmission intensities with and without case management and vector control. Mass screen-and-treat drug campaigns were tested for likelihood of achieving elimination. Results The composition of the infectious reservoir by diagnostic threshold is similar over a range of transmission intensities, and higher intensity settings are biased toward infections in children. Recent ramp-ups in case management and use of insecticide-treated bednets reduce the infectious reservoir and shift the composition toward submicroscopic infections. Mass campaigns with antimalarial drugs are highly effective at interrupting transmission if deployed shortly after ITN campaigns. Conclusions Low density infections comprise a substantial portion of the infectious reservoir. Proper timing of vector control, seasonal variation in transmission intensity, and mass drug campaigns allows lingering population immunity to help drive a region toward elimination.
description: submitted to Malaria Journal on March 31, 2015
The most salient global predictors of adolescents’ subjective well-being: parental support, peer support, and anxiety
Creators: name: Wu, Yi-Jhen
name: Lee, Jihyun
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Subjective well-being
subject: Parent support
subject: Peer support
subject: Anxiety
subject: Decision tree
subject: 370
subject: Heranwachsender
subject: Wohlbefinden
subject: Eltern
subject: Angst
subject: Peer-Group

description: The present study examined the globally relevant predictors of adolescents’ subjective well-being (SWB) using data from the Programme for International Student Assessment (PISA) 2015 Student Questionnaire. Guided by the social-cognitive-behavior model (Suldo et al., 2008) and self-determination theory (Ryan & Deci, 2000), nine variables were selected and subjected to a statistical procedure of decision tree modeling (DTM). Our results showed that parent and peer support were the most salient predictors of adolescents’ SWB across all eight world regions under investigation, followed by anxiety and gender. However, we also noted some variations in the relative importance of parent and peer support and multiple pathways that lead to SWB. The study concludes with practical implications.
description: Child indicators research;15(5)
Bone health of adult hemodialysis patients is related to vitamin K status
Creators: name: Schaefer, Klaus
name: Shearer, Martin
name: Kohlmeier, Martin
name: Saupe, Jörg
name: Asmus, Gernot
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: Bone health of adult hemodialysis patients is related to vitamin K status. This investigation of 68 hemodialysis patients (ages 33 to 91) analyzed the association of biochemical indicators of vitamin K nutriture and bone metabolism, and related both to past bone fracture history and prospective bone fracture risk. Phylloquinone concentrations were significantly lower in the 23 patients with previous fractures compared to those without (0.93 vs. 1.50 nmol/liter, P < 0.003) and a smaller percentage of their serum osteocalcin was carboxylated (48.8 vs. 53.6%, P < 0.03). The 41 patients who never had fractures had nearly three times higher phyUoquinone concentrations than the nine patients with fractures during a four-year follow-up period (1.59 vs. 0.55 nmol/liter, P < 0.002) and more carboxylated serum osteocalcin (55.2 vs. 42.0%, P < 0.01). None of the patients with phyUoquinone concentrations over 2.2 nmol/liter had elevated intact parathyroid hormone (iPTH) concentrations, and only patients with less than 1 nmol/liter phyUoquinone had severe hyperparathyroidism (iPTH>300 ng/liter). Our data thus indicate that suboptimal vitamin K nutriture in hemodialysis patients is associated both with increased bone fracture risk and with a high prevalence of hyperparathyroidism.
title: Micro‐/nanostructure evolution of C/SiFeO(N,C) polymer‐derived ceramic papers pyrolyzed in a reactive ammonia atmosphere
Creators: name: Peter, Johannes Mauricio
name: Ott, Alexander
name: Riedel, Ralf
name: Ionescu, Emanuel
name: Kleebe, Hans‐Joachim
Publisher: name: American Ceramic Society
Year: 2024

description: SiFeO(N,C)-based ceramic papers were prepared via a one-pot synthesis approach by dip-coating a cellulose-based paper template with a polymeric perhydropolysilazane precursor modified with iron(III)acetylacetonate. The preceramic composites were subsequently pyrolyzed in ammonia atmosphere at 500, 700, and 1000°C, respectively, and the characteristics of the three resulting ceramic papers were comparatively investigated.


Scanning electron microscopy revealed that in each sample, the morphology of the template is successfully transferred on the ceramic system, with the cellulose-derived fibers being converted to elemental carbon encased by a SiFeO(N,C) coating. Electron transparent cross-sectional samples for transmission electron microscopy (TEM) were prepared from the ceramic papers, employing a standard ultramicrotomy slice cutting procedure, allowing for a detailed characterization of their in situ generated micro-/nanostructure as well as occurring crystalline phases.


TEM imaging and diffraction revealed that depending on pyrolysis temperature a different microstructure with a distinct phase assemblage is generated in the polymer-derived ceramic papers. Crystallization from the polymer precursor starts with the precipitation of wüstite (Fe(1-x)O) nanoparticles at 700°C inside the ceramic coating and secondary ε-FexN at the fiber-coating interface. Upon pyrolysis at 1000°C however, the sample primarily accommodates metallic α-iron nanocrystals that impart ferromagnetic characteristics to the ceramic paper.


The results show that the template-assisted polymer-derived ceramic route is a feasible approach in the production of complex ceramic compounds with fibrous paper-like morphology. By adjusting the pyrolysis temperature, microstructure and phase composition of the ceramic paper can be conveniently tailored to the needs of its respective application.
Geflüchtete und ihre Sicherheit: humanitärer Schutz vs. Handlungen der Geflüchteten
Creators: name: Krause, Ulrike
Publisher: name: Universität Osnabrück
Year: 2019
Subjects: subject: Flucht
subject: Flüchtlingsschutz
subject: Selbstorganisationen
subject: Uganda
subject: 320 - Politik

description: Dieser Beitrag gilt als Auftakt für eine Reihe, in der wir Ergebnisse des Forschungsprojekts „Globaler Flüchtlingsschutz und lokales Flüchtlingsengagement“ vorstellen. Anhand der Forschung mit geflüchteten Menschen in Kampala, der Hauptstadt Ugandas, und Kyaka II, einem Aufnahmelager, wenden wir uns im Projekt kollektiven Strategien zur Bewältigung der prekären Lebensverhältnisse zu. Im Kern gehen wir auf Formen der Selbstorganisierung von Geflüchteten in Uganda ein.
Light Quarks in the Screened Dyon-Anti-Dyon Coulomb Liquid Model II
Creators: name: Liu, Yizhuang
name: Shuryak, Edward
name: Zahed, Ismail
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss an extension of the dyon-anti-dyon liquid model that includes light quarks in the dense center symmetric Coulomb phase. In this work, like in our previous one, we use the simplest color SU(2) group. We start with a single fermion flavor $N_f=1$ and explicitly map the theory onto a 3-dimensional quantum effective theory with a fermion that is only U$_V(1)$ symmetric. We use it to show that the dense center symmetric plasma develops, in the mean field approximation, a nonzero chiral condensate, although the ensuing Goldstone mode is massive due to the U$_A(1)$ axial-anomaly. We estimate the chiral condensate and $σ,η$ meson masses for $N_f=1$. We then extend our analysis to several flavors $N_f>1$ and colors $N_c>2$ and show that center symmetry and spontaneous chiral symmetry breaking disappear simultaneously when $x=N_f/N_c\geq 2$ in the dense plasma phase. A reorganization of the dense plasma phase into a gas of dyon-antidyon molecules restores chiral symmetry, but may preserve center symmetry in the linearized approximation. We estimate the corresponding critical temperature.
description: 16 pages, 5 figures
Mass campaigns with antimalarial drugs: a modelling comparison of artemether-lumefantrine and DHA-piperaquine with and without primaquine as tools for malaria control and elimination
Creators: name: Gerardin, Jaline
name: Eckhoff, Philip
name: Wenger, Edward A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Antimalarial drugs are a powerful tool for malaria control and elimination. Artemisinin-based combination therapies (ACTs) can reduce transmission when widely distributed in a campaign setting. Modelling mass antimalarial campaigns can elucidate how to most effectively deploy drug-based interventions and quantitatively compare the effects of cure, prophylaxis, and transmission-blocking in suppressing parasite prevalence. A previously established agent-based model that includes innate and adaptive immunity was used to simulate malaria infections and transmission. Pharmacokinetics of artemether, lumefantrine, dihydroartemisinin, piperaquine, and primaquine were modelled with a double-exponential distribution-elimination model including weight-dependent parameters and age-dependent dosing. Drug killing of asexual parasites and gametocytes was calibrated to clinical data. Mass distribution of ACTs and primaquine was simulated with seasonal mosquito dynamics at a range of transmission intensities. A single mass campaign with antimalarial drugs is insufficient to permanently reduce malaria prevalence when transmission is high. Current diagnostics are insufficiently sensitive to accurately identify asymptomatic infections, and mass-screen-and-treat campaigns are much less efficacious than mass drug administrations. Improving campaign coverage leads to decreased prevalence one month after the end of the campaign, while increasing compliance lengthens the duration of protection against reinfection. Use of a long-lasting prophylactic as part of a mass drug administration regimen confers the most benefit under conditions of high transmission and moderately high coverage. Addition of primaquine can reduce prevalence but exerts its largest effect when coupled with a long-lasting prophylactic.
description: 14 pages, 5 figures
Is It Enough to Recommend Tasks to Newcomers? Understanding Mentoring on Good First Issues
Creators: name: Tan, Xin
name: Chen, Yiran
name: Wu, Haohua
name: Zhou, Minghui
name: Zhang, Li
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Newcomers are critical for the success and continuity of open source software (OSS) projects. To attract newcomers and facilitate their onboarding, many OSS projects recommend tasks for newcomers, such as good first issues (GFIs). Previous studies have preliminarily investigated the effects of GFIs and techniques to identify suitable GFIs. However, it is still unclear whether just recommending tasks is enough and how significant mentoring is for newcomers. To better understand mentoring in OSS communities, we analyze the resolution process of 48,402 GFIs from 964 repositories through a mix-method approach. We investigate the extent, the mentorship structures, the discussed topics, and the relevance of expert involvement. We find that $\sim$70\% of GFIs have expert participation, with each GFI usually having one expert who makes two comments. Half of GFIs will receive their first expert comment within 8.5 hours after a newcomer comment. Through analysis of the collaboration networks of newcomers and experts, we observe that community mentorship presents four types of structure: centralized mentoring, decentralized mentoring, collaborative mentoring, and distributed mentoring. As for discussed topics, we identify 14 newcomer challenges and 18 expert mentoring content. By fitting the generalized linear models, we find that expert involvement positively correlates with newcomers' successful contributions but negatively correlates with newcomers' retention. Our study manifests the status and significance of mentoring in the OSS projects, which provides rich practical implications for optimizing the mentoring process and helping newcomers contribute smoothly and successfully.
description: conference
Expression of p300-truncated fragments results in the modulation of apoptosis in rat mesangial cells
Creators: name: Pendergraft, Will
name: Preston, Gloria
name: Segelmark, Mårten
name: Falk, Ronald
name: Barrett, Cheri
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: BACKGROUND: Mesangial cell proliferation, apoptosis, and matrix deposition have pivotal roles in the pathogenesis of renal diseases such as diabetic nephropathy and glomerulonephritis. The behavior of mesangial cells depends on the integration of intracellular signals elicited by hormones and cytokines. We hypothesized that p300 is primarily involved in the integration of signal transduction pathways in rat mesangial cells (RMCs) and that interference with p300 function will alter apoptotic signals. METHODS: We established an RMC cell line expressing the Tet-activator (tTA). RMC-tTA cells were transiently transfected with vectors coding for either the N-terminal third or the C-terminal third of p300. Expression was induced by the addition of doxycycline [Dox; 1 microg/mL; 5% fetal bovine serum (FBS)]. The percentage of apoptosis was determined using the TUNEL technique. Specific protein-protein interactions were determined by Western blot analysis of immunoprecipitated complexes. Cells were treated with 5% FBS or with H2O2 (500 micromol/L, 1 h) with and without Dox. RESULTS: The expression of p300-C resulted in increased susceptibility to low serum-induced (20.0 +/- 4.6 vs. 3.0 +/- 1.7%) and to H2O2-induced apoptosis (75.3 +/- 13.3 vs. 50.8 +/- 6.5%) compared with controls. Immunoprecipitation of p300-C showed an interaction with the transcription factor c-Fos, which was enhanced by H2O2 treatment. Expression of the p300-N resulted in a rescue (34.8 +/- 6. 4 vs. 50.8 +/- 6.5%) from H2O2-induced apoptosis compared with controls. P300-N was shown to form a complex with the transcription factor nuclear factor-kappaB (NF-kappaB). CONCLUSIONS: The data indicate that endogenous p300 is involved in apoptosis in mesangial cells. We propose that interference or enhancement of endogenous p300 function, by expression of exogenous fragments, can alter interactions with c-Fos or NF-kappaB and modulate signals during cellular stress.
(100334) Ellen Richards
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Sistema de información y control administrativo basado en el Balanced Scorecard para la empresa Solumart Sas
Creators: name: Gamboa Carmona, Cristian Camilo
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Planificación estratégica
subject: Planificación empresarial
subject: Administración estratégica
subject: Aptitud de mando
subject: Liderazgo

description: El presente estudio tiene por objeto diseñar un sistema de información administrativo y de control para la compañía SOLUMART SAS, tomando como referencia el cuadro de mando integral (Balanced Scorecard).
MPEC 2024-R235 : 2024 RQ10
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 RQ10

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Working With Wilson Lines
Creators: name: Van der Veken, Frederik F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present an algorithm to express Wilson lines that are defined on piecewise linear paths in function of their individual segments, reducing the number of diagrams needed to be calculated. The important step lies in the observation that different linear path topologies can be related to each other using their color structure. This framework allows one to easily switch results between different Wilson line topologies, which is helpful when testing different structures against each other.
description: Proceedings for SPIN 2014, 6 pages
(100335) Henry Kirkhouse
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
The amalgamated limit and its topological interpretation
Creators: name: Brendle, Joerg
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: This is a survey on the amalgamated limit, a limit construction for complete Boolean algebras in iterated forcing theory, which generalizes both the direct limit and the two-step amalgamation. We focus in particular on examples of the amalgamated limit from the literature and on the topological amalgamated limit for compact Hausdorff spaces.
description: 13 pages
(100336) Barbara Kirkhouse
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Mil aulas con enfoque comunicativo como herramienta pedagógica para mejorar la lectoescritura en el idioma Inglés en estudiantes de 11° de la Institución Educativa Indígena Bossa Navarro de Sampués, Sucre.
Creators: name: Mouthon Bahos, Jonathan David
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Juegos por Computador
subject: Inglés - Aprendizaje
subject: Inglés - Enseñanza con ayuda de computadores

description: Este proyecto tiene como objeto mejorar las competencias comunicativas de idioma extranjero inglés, tanto en lectura como escritura, incluyendo vocabulario; la herramienta combina todos estos aspectos pedagógicos adicionados con herramientas de tipo tecnológico, con el fin de hacer la propuesta algo atractiva, dinámica y de fácil manejo. Con la aplicación y evaluación del recurso educativo digital se pudo apreciar que los estudiantes si pueden mostrar cambios en el mejoramiento de sus competencias .Los estudiantes de la Institución Educativa Indígena Bossa Navarro de Sampués, Sucre ha obtenido un desempeño bastante bajo en cuanto se refiere a lengua extranjera inglés, los datos no son nada alentadores en las últimas tres versiones de la prueba nacional; debido al bajo desempeño de los estudiantes de grado 11° en la prueba de inglés es que se vió en la necesidad de crear una herramienta pedagógica que mejorara dichas competencias.
Diseño de recurso educativo digital para apoyar el aprendizaje de los conceptos básicos de redes de datos, con los estudiantes de la modalidad técnico en sistemas de la Institución Educativa Técnica Nacionalizada De Samacá.
Creators: name: Leydy Yohana, Rincon Solano
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Estrategias de aprendizaje - Tecnología educativa
subject: Programación (computadores)
subject: Herramientas informáticas

description: Este proyecto tiene como objeto el diseño e implementación de un recurso educativo digital para apoyar el aprendizaje de los conceptos básicos de redes de datos. Con el cual se pretendió fortalecer conocimientos propios del área, apoyado en el uso de las TIC. La investigación se desarrolló bajo un enfoque cualitativo, con el propósito de diseñar un recurso que se ajustara a las necesidades de los estudiantes, el cual le permitió abordar conceptos básicos mediante actividades interactivas. Los datos fueron analizados, con base en las siguientes categorías: recursos educativos digitales, redes de datos. Se analizó el impacto del uso de dicho recurso en los estudiantes.
La secuencia didáctica mediada por la tecnología multimedial para favorecer el conocimiento de la diversidad cultural en el contexto regional de los estudiantes de quinto grado en la Institución Educativa Francisco Antonio de Ulloa.
Creators: name: Pino Muñoz, Luis Yovanny
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Herramientas virtuales
subject: Multimedia Interactiva en la Educación
subject: Diversidad cultural

description: Este proyecto tiene como objeto “desarrollar una secuencia didáctica mediada por la tecnología multimedial, para favorecer el conocimiento de la diversidad cultural, en el contexto regional de los estudiantes del quinto grado, de la Institución Educativa Francisco Antonio de Ulloa”, desde el área de ciencias sociales.Para desarrollar este estudio, se consideraron categorías, relacionadas con la diversidad cultural, la tecnología multimedial, los recursos educativos de aprendizaje, las competencias y la secuencia didáctica como herramientas que permiten la construcción de saberes y facilitan la incorporación del conocimiento, y así mismo se consideró incluir al proceso él estudió el aprendizaje significativo, con el fin de que los estudiantes le asignen un sentido a los preconceptos que ya poseen con la asociación de información nueva, y a su vez modifiquen y reestructuren, Ausubel ( 2002). El trabajo realizado permitió precisar y sustentar que las secuencias didácticas son actividades estructuradas y organizadas con un orden de inicio a fin, encadenadas con hilos conductores que permiten la construcción y retroalimentación constante del proceso de aprendizaje, Camps ( 2006), y que al transversalizarlas e integrarlas con las TIC se convierten en un papel determinante para impulsar, dinamizar y potencializar el favorecimiento de la diversidad cultural y la competencia que la fundamenta.
Importance of quantitative genetic variations in the etiology of hypertension
Creators: name: Kim, Hyung-Suk
name: Takahashi, Nobuyuki
name: Edgell, Marshall
name: Smithies, Oliver
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Importance of quantitative genetic variations in the etiology of hypertension. Recent progress has been remarkable in identifying mutations which cause diseases (mostly uncommon) that are inherited simply. Unfortunately, the common diseases of humankind with a strong genetic component, such as those affecting cardiovascular function, have proved less tractable. Their etiology is complex with substantial environmental components and strong indications that multiple genes are implicated. In this article, we consider the genetic etiology of essential hypertension. After presenting the distribution of blood pressures in the population, we propose the hypothesis that essential hypertension is the consequence of different combinations of genetic variations that are individually of little consequence. The candidate gene approach to finding relevant genes is exemplified by studies that identified potentially causative variations associated with quantitative differences in the expression of the angiotensinogen gene (AGT). Experiments to test causation directly are possible in mice, and we describe their use to establish that blood pressures are indeed altered by genetic changes in AGT expression. Tests of differences in expression of the genes coding for the angiotensin-converting enzyme (ACE) and for the natriuretic peptide receptor A are also considered, and we provide a tabulation of all comparable experiments in mice. Computer simulations are presented that resolve the paradoxical finding that while ACE inhibitors are effective, genetic variations in the expression of the ACE gene do not affect blood pressure. We emphasize the usefulness of studying animals heterozygous for an inactivating mutation and a wild-type allele, and briefly discuss a way of establishing causative links between complex phenotypes and single nucleotide polymorphisms.
(100332) Oliver G Kyle
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Preparation and surface characterization of plasma-treated and biomolecular-micropatterened polymer substrates
Creators: name: Langowski, Bryan Alfred
Publisher: name: No Publisher Supplied
Year: 2007

description: A micropatterning process creates distinct microscale domains on substrate surfaces that differ from the surfaces' original chemical/physical properties. Numerous micropatterning methods exist, each having relative advantages and disadvantages in terms of cost, ease, reproducibility, and versatility. Polymeric surfaces micropatterned with biomolecules have many applications, but are specifically utilized in tissue engineering as cell scaffolds that attempt to controlled tissue generation in vivo and ex vivo. As the physical and chemical cues presented by micropatterned substrates control resulting cellular behavior, characterization of these cues via surface-sensitive analytical techniques is essential in developing cell scaffolds that mimic complex in vivo physicochemical environments.The initial focus of this thesis is the chemical and physical characterization of plasma-treated, microcontact-printed (µCP) polymeric substrates used to direct nerve cell behavior. Unmodified and oxygen plasma-treated poly(methyl methacrylate) (PMMA) substrates were analyzed by surface sensitive techniques to monitor plasma-induced chemical and physical modifications. Additionally, protein-micropattern homogeneity and size were microscopically evaluated. Lastly, poly(dimethylsiloxane) (PDMS) stamps and contaminated PMMA substrates were characterized by spectroscopic and microscopic methods to identify a contamination source during microcontact printing. The final focus of this thesis is the development of microscale plasma-initiated patterning (µPIP) as a versatile, reproducible micropatterning method. Using µPIP, polymeric substrates were micropatterned with several biologically relevant inks. Polymeric substrates were characterized following µPIP by surface-sensitive techniques to identify the technique's underlying physical and chemical bases. In addition, neural stem cell response to µPIP-generated laminin micropatterns was microscopically and biologically evaluated. Finally, enhanced versatility of µPIP in generating microscale poly-L-lysine gradients was demonstrated.
Some implications of signature-change in cosmological models of loop quantum gravity
Creators: name: Bojowald, Martin
name: Mielczarek, Jakub
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Signature change at high density has been obtained as a possible consequence of deformed space-time structures in models of loop quantum gravity. This article provides a conceptual discussion of implications for cosmological scenarios, based on an application of mathematical results for mixed-type partial differential equations (the Tricomi problem). While the effective equations from which signature change has been derived are shown to be locally regular and therefore reliable, the underlying theory of loop quantum gravity may face several global problems in its semiclassical solutions.
description: 35 pages, 5 figures
Fomento de las competencias Matemáticas para la resolución de problemas con estructura aditiva mediada por las herramientas tecnológicas Moodle y Khan Academy para el aprendizaje significativo en estudiantes de Básica primaria del programa Escuela Nueva.
Creators: name: Velez Araque, Maria Patricia
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Plataforma virtual
subject: Matemática - Aprendizaje
subject: Matemática computacional

description: Este proyecto tiene como objeto fomentar las competencias matemáticas para la resolución de problemas con estructura aditiva mediada por las herramientas tecnológicas Moodle y Khan Academy para el aprendizaje significativo en estudiantes de Básica primaria del programa Escuela Nueva en la Institución Educativa Manuel Antonio San clemente sede la Planta. La metodología empleada es de enfoque cualitativa de tipo descriptiva y como población se tomaron 23 estudiantes de básica primaria, con los cuales se implementaron las cuatro unidades didácticas atendiendo las categorías de resolución de problemas de estructura aditiva relacionadas con la combinación, comparación, y transformación Las conclusiones de este estudio evidencian que el uso de las herramientas tecnológicas seleccionadas resultaron pertinentes y favorecieron de manera radical la construcción del conocimiento matemático en relación al tema abordado por parte de los estudiantes, quienes aprendieron a desarrollar con éxito los problemas planteados siguiendo un procedimiento que les permitió obtener soluciones lógicas y acertadas.
Sistema hardware-software para el seguimiento y análisis de la temperatura corporal del usuario mediante el uso de cámaras termográficas de bajo costo dentro de un entorno controlado para pruebas de usabilidad
Creators: name: De Ávila Orozco, Jhonatan David
name: Teherán Rodríguez, Camilo Andrés
Publisher: name: Universidad de Cartagena
Year: 2022
Subjects: subject: Ingeniería de Software
subject: Análisis de datos
subject: Usabilidad

description: El presente estudio tiene por objeto construir un sistema hardware-software para el seguimiento y análisis de los cambios en la temperatura corporal del usuario mediante el uso de cámaras termográficas de bajo costo en un entorno controlado para pruebas de usabilidad.
Nanotube mechanical resonators with quality factors of up to 5 million
Creators: name: Moser, Joel
name: Eichler, Alexander
name: Güttinger, Johannes
name: Dykman, Mark I.
name: Bachtold, Adrian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Carbon nanotube mechanical resonators have attracted considerable interest because of their small mass, the high quality of their surface, and the pristine electronic states they host. However, their small dimensions result in fragile vibrational states that are difficult to measure. Here we observe quality factors $Q$ as high as $5\times10^6$ in ultra-clean nanotube resonators at a cryostat temperature of 30 mK, where we define $Q$ as the ratio of the resonant frequency over the linewidth. Measuring such high quality factors requires both employing an ultra-low noise method to detect minuscule vibrations rapidly, and carefully reducing the noise of the electrostatic environment. We observe that the measured quality factors fluctuate because of fluctuations of the resonant frequency. The quality factors we measure are record high; they are comparable to the highest $Q$ reported in mechanical resonators of much larger size, a remarkable result considering that reducing the size of resonators is usually concomitant with decreasing quality factors. The combination of ultra-low size and very large $Q$ offers new opportunities for ultra-sensitive detection schemes and quantum optomechanical experiments.
description: Manuscript and Supplementary Information
Value-based disposal mechanism for relief supply returns in post-disaster humanitarian logistics
Creators: name: Zhu, Anqi
name: Wang, Xihui
name: Fan, Yu
name: Liang, Liang
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: Relief supplies are crucial in responding to a disaster. However, current studies focus on the location, delivery and allocation of relief supplies, and how to deal with the reusable relief supplies that are returned after a disaster response has not been addressed. From field investigations and interviews, in practice all the returned reusable relief supplies are piled up in warehouses until they expire, which leads to huge inventory costs. To solve this problem, a disposal mechanism (i.e., a value-based disposal standard and the use of auction as a new disposal approach) is designed and a Newsvendor model is constructed to help local authorities determine whether the relief supply returns should be stored for future use or disposed of by auction. This paper further considers whether local authorities can benefit more from pre-processing (e.g., classification and cleaning) the relief items for auction. A case study based on the practical background in China has been conducted to prove the feasibility of the mechanism. The result shows that through the disposal mechanism, local authorities can achieve a balance between reducing high inventory costs and avoiding the potential waste of useful relief items.