cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Standard Gibbs energy of metabolic reactions: III the 3-phosphoglycerate kinase reaction
Creators: name: Wangler, Anton
name: Klein-Schmidt, Christina
name: Sadowski, Gabriele
name: Held, Christoph
Publisher: name: TU Dortmund
Year: 2018
Subjects: subject: Enthalpy
subject: Enzyme kinetics
subject: Free energy
subject: Osmotic coefficient
subject: Pharmacology
subject: Thermodynamic simulation
subject: 660

description: The glycolytic pathway is one of the most studied metabolic pathways to date. This work focuses on determining the standard Gibbs energy of reaction (ΔRg0) of the first adenosine triphosphate-yielding reaction step of glycolysis, namely, the 3-phosphoglycerate kinase (PGK) reaction. Trustworthy values of ΔRg0 are required for thermodynamic approaches to determine single reaction conversions or even fluxes of metabolic reactions. In literature, the observed ΔRg0,obs values are usually determined directly from the experimental equilibrium composition data without accounting for the nonideality of the reaction mixture. That is the reason why the observed ΔRg0,obs values do not present consistent standard data as they are a function of the concentration, pH, and pMg. In this work, a combination of experimentally determined equilibrium composition data and activity coefficients of the reacting agents was used to determine ΔRg0 values for the temperatures 303, 313, and 323 K at pH 7. The activity coefficients were predicted with the thermodynamic model electrolyte perturbed-chain statistical associating fluid theory (ePC-SAFT). The ePC-SAFT parameters were taken from literature or fitted to new experimental osmotic coefficients. At 313.15 K, a value for ΔRg0 of −16.2 ± 0.2 kJ/mol was obtained. This value is about 4 kJ/mol less negative than what is usually considered as an accepted standard value. The reason behind this discrepancy was found to be the activity coefficients of the reacting agents, which dramatically influence the equilibrium position of the PGK reaction. On the basis of the temperature-dependent ΔRg0 values, the standard enthalpy of reaction was determined and found to be ΔRh0 = −49 ± 9 kJ/mol.
description: ACS omega;
Radial velocity analysis of stars with debris discs
Creators: name: Bisht, Deepak
name: Jones, Hugh R. A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This study aims to identify potential exoplanet signals from nearby stars with resolved debris discs. However, the high activity of many stars with debris discs limits the detection of periodic signals. Our study is constrained to a sample of 29 stars that have appropriate radial velocity data and debris disc measurements sufficient to resolve their inclination. Our results confirm and update previous findings for exoplanets around HD 10647, HD 115617, HD 69830, GJ 581, HD 22049, and HD 142091, and we identify long-term activity signals around HD 207129 and HD 202628. We utilize the inclination angles of the debris discs, assuming co-planarity between debris disc and exoplanet orbit, to determine the "disc-aligned" masses of radial velocity exoplanets in this study. The "disc-aligned" masses of HD 69830 b, HD 69830 c, and 61 Vir b suggest that they may be classified as 'hot' or 'warm' Jupiters and so might be nearby examples of planets that have undergone recent type-II disc migration.
Quantum Computing
Creators: name: Ladd, Thaddeus D.
name: Jelezko, Fedor
name: Laflamme, Raymond
name: Nakamura, Yasunobu
name: Monroe, Christopher
name: O'Brien, Jeremy L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum mechanics---the theory describing the fundamental workings of nature---is famously counterintuitive: it predicts that a particle can be in two places at the same time, and that two remote particles can be inextricably and instantaneously linked. These predictions have been the topic of intense metaphysical debate ever since the theory's inception early last century. However, supreme predictive power combined with direct experimental observation of some of these unusual phenomena leave little doubt as to its fundamental correctness. In fact, without quantum mechanics we could not explain the workings of a laser, nor indeed how a fridge magnet operates. Over the last several decades quantum information science has emerged to seek answers to the question: can we gain some advantage by storing, transmitting and processing information encoded in systems that exhibit these unique quantum properties? Today it is understood that the answer is yes. Many research groups around the world are working towards one of the most ambitious goals humankind has ever embarked upon: a quantum computer that promises to exponentially improve computational power for particular tasks. A number of physical systems, spanning much of modern physics, are being developed for this task---ranging from single particles of light to superconducting circuits---and it is not yet clear which, if any, will ultimately prove successful. Here we describe the latest developments for each of the leading approaches and explain what the major challenges are for the future.
description: 26 pages, 7 figures, 291 references. Early draft of Nature 464, 45-53 (4 March 2010). Published version is more up-to-date and has several corrections, but is half the length with far fewer references
Multi-scale Optics for Enhanced Light Collection from a Point Source
Creators: name: Noek, Rachel
name: Knoernschild, Caleb
name: Migacz, Justin
name: Kim, Taehyun
name: Maunz, Peter
name: Merrill, True
name: Hayden, Harley
name: Pai, C. S.
name: Kim, Jungsang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: High efficiency collection of photons emitted by a point source over a wide field-of-view (FoV) is crucial for many applications. Multi-scale optics over improved light collection by utilizing small optical components placed close to the optical source, while maintaining a wide FoV provided by conventional imaging optics. In this work, we demonstrate collection efficiency of 26% of photons emitted by a point-like source using a micromirror fabricated in silicon with no significant decrease in collection efficiency over a 10 mm object space.
description: 4 pages, 4 figures
การศึกษาการปรับปรุงคุณภาพบริการในสถานการณ์ โควิด-19 ของโรงแรมระดับสี่ดาวเขตลาดกระบัง กรุงเทพมหานคร
Creators: name: ณพร เจียมโฆสิต
Publisher: name: คณะนิเทศศาสตร์ มหาวิทยาลัยราชภัฏรำไพพรรณี
Year: 2022
Subjects: Quality of service
COVID-19
Four-star hotels

description: วารสารสหวิทยาการสังคมศาสตร์และการสื่อสาร, 5, 3, 162-170
Linear and nonlinear Zeno effects in an optical coupler
Creators: name: Abdullaev, F. Kh.
name: Konotop, V. V.
name: Shchesnovich, V. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is shown that in a simple coupler where one of the waveguides is subject to controlled losses of the electric field, it is possible to observe optical analog of the linear and nonlinear quantum Zeno effects. The phenomenon consists in a counter-intuitive enhancement of transparency of the coupler with the increase of the dissipation and represents an optical analogue of the quantum Zeno effect. Experimental realization of the phenomenon based on the use of the chalcogenide glasses is proposed. The system allows for observation of the cross-over between the linear and nonlinear Zeno effects, as well as effective manipulation of light transmission through the coupler.
description: 5 pages with 2 figures in color
The Search for Extragalactic Lithium Hydride
Creators: name: Friedel, D. N.
name: Kemball, Athol
name: Fields, Brian D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have conducted Combined Array for Research in Millimeter-wave Astronomy (CARMA) observations of LiH, in absorption, toward three quasars. These quasars, B0218+357, PKS1830-211, and PKS0201+113, have redshifts of z = 0.685 - 3.387$, and shift the LiH J=1-0 transition to the 1 mm and 3mm wavelength bands, where atmospheric absorption is sharply reduced from that predominating near the rest frequency of 443 GHz. We report a 3$σ$ detection of LiH toward B0218+357 with a column density of 1.4x10^{12} cm^{-2} and place an upper limit on the ^6Li/^7Li ratio of <0.16. LiH was not detected toward any other source.
description: 18 pages, 8 figures, accepted for publication in The Astrophysical Journal
title: Simulation of the governance of complex systems (SimCo)
title: basic concepts and experiments on urban transportation
titleType: AlternativeTitle
Creators: name: Adelt, Fabian
name: Weyer, Johannes
name: Hoffmann, Sebastian
name: Ihrig, Andreas
Publisher: name: TU Dortmund
Year: 2018
Subjects: subject: Governance
subject: Agent-Based Modelling
subject: Complexity
subject: Infrastructure Systems
subject: Transport Network
subject: Transport Mode Choice
subject: 330

description: The current paper is positioned at the intersection of computer simulation, governance research, and research on infrastructure systems, such as transportation or energy. It proposes a simulation framework, “Simulation of the governance of complex systems” (SimCo), to study the governability of complex socio-technical systems experimentally by means of agent-based modelling (ABM). SimCo is rooted in a sociological macro-micro-macro model of a socio-technical system, taking into account the interplay of agents’ choices (micro) and situational constraints (macro). The paper presents the conceptualization of SimCo, its elements and subsystems as well as their interactions. SimCo depicts the daily routines of users performing their tasks (e.g. going to work) by choosing among different technologies (e.g. modes of transportation), occasionally deciding to replace a worn-out technology. All components entail different dimensions that can be adjusted, thus allowing operators to purposefully intervene, for instance in the case of risk management (e.g. preventing congestion) or system transformation (e.g. towards sustainable mobility). Experiments with a basic scenario of an urban road transport system demonstrate the effects of different modes of governance (soft control, strong control and a combination of both), revealing that soft control may be the best strategy to govern a complex socio-technical system.
description: The journal of artificial societies and social simulation;
2018 Usage Report for the IPCC DDC at CEDA
Creators: name: Pascoe, Charlotte
Publisher: name: Zenodo
Year: 2019
Subjects: IPCC
Usage

description: This report provides details of how the DDC web site, ipcc-data.org, was used in the 12 months from January 1st 2018 to December 31st 2018. The information presented here is generated using the Google Analytics service; providing a range of different statistics that cover both temporal and spatial trends. Only sessions which persist for longer than 10 seconds have been used in this analysis for consistency with the previous usage reports for TGICA. The Google Analytics statistics have also been filtered to remove robotic and other automated behaviour.
PMT and vPvM Chemicals Used in Food Contact Materials
Creators: name: Groh, Ksenia J
name: Geueke, Birgit
name: Muncke, Jane
Publisher: name: Zenodo
Year: 2021
Subjects: persistent, mobile and toxic (PMT); very persistent, very mobile (vPvM); food contact material (FCM); aquatic environment; risk assessment

description: This upload pertains to the electronic poster (ePoster) titled "PMT and vPvM Chemicals Used in Food Contact Materials," by Ksenia Groh, Birgit Geueke and Jane Muncke, which was presented at the SETAC Europe 31st Annual Meeting "Global challenges. An emergency for environmental sciences" that took place online in May 2021. The uploaded materials include the poster itself (file "Groh_et_al_ePoster_PMTinFCMs_SetacEU2021.pdf) and an introductory document (file "Groh_Introduction_for_ePoster_REACHpolymers_SetacEU2021.pdf) corresponding to the voice-over which was originally presented together with the poster (hence the "ePoster" format).
description: SETAC stands for Society of Environmental Toxicology and Chemistry
title: The Hidden Advantage Among Digital Natives within Bug Bounty Programs
Creators: name: Allah-Mensah, James (Jimmy)
Publisher: name: Old Dominion University Libraries
Year: 2020

description: Bug bounty programs are a great way for companies and organizations to help keep their systems and information secure; however, there are only a limited number of white hat hacking participant spots. With only so many seats available at the table, being able to determine the most qualified group of individuals is critical to the efficiency of the program at large. Digital natives, people born into the digital age, provide an instinctive approach when dealing with technology. On the other hand, digital immigrants, people who grew up before the digital age and had to adapt to new technology, evidently utilize experience. This paper focuses on the observation and analysis of each group’s ability to identify critical inconspicuous vulnerabilities within presumably attack proof products. The goal was to identify how the younger generation’s ability to utilize technologies in unanticipated ways could provide security insights often overlooked by more experienced security professionals. We present members of each group six different newly released tech products asking them to, without effort, identify an uncommon usage and vulnerability for each. Their responses are then scored based on classification. After careful classification and analysis, it was determined that millennials with a technical background were the ideal candidates.
Geregu Nuclear Power Project
Creators: name: Ikemba, Samuel
Publisher: name: Zenodo
Year: 2023

description: The Geregu nuclear power plant is a twin-reactor nuclear power plant planned in Nigeria. The project foresees construction of two nuclear reactors supplied by Atomstroyexport and the plant would be located in Geregu, Kogi State. It is part of efforts to find solution to the shortage of power supply in the country.
Probing the standard model of particle physics with rare B decays
Creators: name: Tekampe, Tobias
Publisher: name: TU Dortmund
Year: 2019
Subjects: subject: B-physics
subject: Rare decays
subject: LHCb
subject: 530
subject: Elementarteilchenphysik
subject: B-Physik
subject: B-Meson
subject: Zerfall
subject: LHCb

description: This thesis discusses two analyses of rareBmeson decays that are sensitive to effectsbeyond the Standard Model of particles physics. Both measurements are based on theLHCb Run 1 data sample of proton-proton collisions corresponding to an integratedluminosity of3 fb−1recorded at centre-of-mass energies of 7 and 8 TeV.The first measurement is a search for light scalar particles inB0(s)→μ+μ−μ+μ−decays. Additionally to the Standard Model contributions without intermediateresonances, a specific supersymmetric model in which the decays proceed via lightscalar and pseudoscalar particles is studied. No signal candidates are observed suchthat upper limits on the branching fractions of theB0andB0sdecays of the order of10−9 and10−10 are set at95 %confidence level. These yield an improvement of aboutone order of magnitude compared to the previous most stringent limits.The second measurement is a test of lepton flavour universality with the ratio ofbranching fractions of the decaysB+→K+π+π−μ+μ−andB+→K+π+π−e+e−. Theanalysis is still in progress. Hence, no final result can be presented. The ratio of signalyields obtained from the LHCb Run 1 data sample is determined with a statisticaluncertainty of17 %, which can be reduced to8 %by extending the measurement tothe Run 2 data sample.
Transverse-momentum-dependent parton distributions (TMDs)
Creators: name: Bacchetta, Alessandro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Transverse-momentum-dependent parton distributions (TMDs) provide three-dimensional images of the partonic structure of the nucleon in momentum space. We made impressive progress in understanding TMDs, both from the theoretical and experimental point of view. This brief overview on TMDs is divided in two parts: in the first, an essential list of achievements is presented. In the second, a selection of open questions is discussed.
description: Talk given at 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2010), Williamsburg, Virginia, 31 May - 4 Jun 2010
Photon Antibunching and Magnetospectroscopy of a Single Fluorine Donor in ZnSe
Creators: name: De Greve, K.
name: Clark, S. M.
name: Sleiter, D.
name: Sanaka, K.
name: Ladd, T. D.
name: Panfilova, M.
name: Pawlis, A.
name: Lischka, K.
name: Yamamoto, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the optical investigation of single electron spins bound to fluorine donor impurities in ZnSe. Measurements of photon antibunching establish the presence of single, isolated optical emitters, and magneto-optical studies are consistent with the presence of an exciton bound to the spin-impurity complex. The isolation of this single donor-bound exciton complex and its potential homogeneity offer promising prospects for a scalable semiconductor qubit with an optical interface.
description: 3.1 pages, 3 figures
The effect of H2O on ice photochemistry
Creators: name: Oberg, Karin I.
name: van Dishoeck, Ewine F.
name: Linnartz, Harold
name: Andersson, Stefan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: UV irradiation of simple ices is proposed to efficiently produce complex organic species during star- and planet-formation. Through a series of laboratory experiments, we investigate the effects of the H2O concentration, the dominant ice constituent in space, on the photochemistry of more volatile species, especially CH4, in ice mixtures. In the experiments, thin (~40 ML) ice mixtures, kept at 20-60 K, are irradiated under ultra-high vacuum conditions with a broad-band UV hydrogen discharge lamp. Photodestruction cross sections of volatile species (CH4 and NH3) and production efficiencies of new species (C2H6, C2H4, CO, H2CO, CH3OH, CH3CHO and CH3CH2OH) in water-containing ice mixtures are determined using reflection-absorption infrared spectroscopy during irradiation and during a subsequent slow warm-up. The four major effects of increasing the H2O concentration are 1) an increase of the destruction efficiency of the volatile mixture constituent by up to an order of magnitude due to a reduction of back reactions following photodissociation, 2) a shift to products rich in oxygen e.g. CH3OH and H2CO, 3) trapping of up to a factor of five more of the formed radicals in the ice and 4) a disproportional increase in the diffusion barrier for the OH radical compared to the CH3 and HCO radicals. The radical diffusion temperature dependencies are consistent with calculated H2O-radical bond strengths. All the listed effects are potentially important for the production of complex organics in H2O-rich icy grain mantles around protostars and should thus be taken into account when modeling ice chemistry.
description: 23 pages, 10 figures, accepted for publication in ApJ
USIA Survey on Media Habits in Italy
Creators: name: USIA
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: This was a survey of the media habits of six influential groups in Italy: (1) government and political leaders, (2) mass communication leaders, (3) business and intellectual leaders, (4) university faculty members, (5) university students, and (6) creative and intellectual leaders.
Hacia la Paz Sostenible por el Camino de la Igualdad de Género: Segundo Informe de Seguimiento al Enfoque de Género en la implementación del Acuerdo de Paz en Colombia
Creators: name: Matriz De Acuerdos De Paz, Instituto Kroc De Estudios Internacionales
Publisher: name: University of Notre Dame
Year: 2021

Abstract
The Jets of TeV Blazars at Higher Resolution: 43 GHz and Polarimetric VLBA Observations from 2005-2009
Creators: name: Piner, B. Glenn
name: Pant, Niraj
name: Edwards, Philip G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present 23 new VLBA images of the six established TeV blazars Markarian 421, Markarian 501, H 1426+428, 1ES 1959+650, PKS 2155-304, and 1ES 2344+514, obtained from 2005 to 2009. Most images were obtained at 43 GHz, and they reveal the parsec-scale structures of three of these sources (1ES 1959+650, PKS 2155-304, and 1ES 2344+514) at factors of two to three higher resolution than has previously been attained. Most of the remaining images map the linear polarization structures at a lower frequency of 22 GHz. We discuss the transverse structures of the jets as revealed by the high-frequency and polarimetric imaging. The transverse structures include significant limb-brightening in Mrk 421, and spine-sheath structures in the electric vector position angle (EVPA) and fractional polarization distributions in Mrk 421, Mrk 501, and 1ES 1959+650. We use new measured component positions to update measured apparent jet speeds, in many cases significantly reducing the statistical error over previously published results. With the increased resolution at 43 GHz, we detect new components within 0.1-0.2 mas of the core in most of these sources. No motion is apparent in these new components over the time span of our observations, and we place upper limits on the apparent speeds of the components near the core of less than 2c. From those limits, we conclude that Gamma2 < Gamma1^{1/2} at about 10^5 Schwarzschild radii, where Gamma1 and Gamma2 are the bulk Lorentz factors in the TeV-emitting and 43 GHz-emitting regions, respectively, assuming that their velocity vectors are aligned.
description: 22 pages, accepted to ApJ
ปัจจัยการรับรู้และการจัดการความเสี่ยงที่มีผลต่อการซื้ออาหารผ่านช่องทางออนไลน์ของผู้บริโภคในเขตกรุงเทพมหานคร ภายใต้สถานการณ์การแพร่ระบาดของโควิด-19
Creators: name: กิจติวัฒน์ รัตนมณี
Publisher: name: คณะนิเทศศาสตร์ มหาวิทยาลัยราชภัฏรำไพพรรณี
Year: 2022
Subjects: การรับรู้ความเสี่ยง
การจัดการความเสี่ยง
การซื้ออาหารผ่านช่องทางออนไลน์
โควิด-19

description: วารสารสหวิทยาการสังคมศาสตร์และการสื่อสาร, 5, 3, 171-179
Facilitators’ adaptation practices of curriculum material resources for professional development courses
Creators: name: Leufer, Nikola
name: Prediger, Susanne
name: Mahns, Peter
name: Kortenkamp, Ulrich
Publisher: name: TU Dortmund
Year: 2019
Subjects: subject: Professional development curriculum materials
subject: Adaptation practices
subject: Open educational resources
subject: OER
subject: 510
subject: Lehrmaterial
subject: Lehrerbildung
subject: Open educational resources

description: Background In STEM-innovation implementation processes, PD curriculum materials are designed to support facilitators in conducting professional development. However, little is known about the facilitators’ practices in adapting PD materials. This study transfers frameworks from teachers’ curriculum adaptation to facilitators and qualitatively investigates adaptation practices of 11 expert facilitators and their underlying individual perspectives in group discussion and interviews. In the study, a framework was developed for capturing facilitators’ adaptation practices. Results The qualitative analysis shows that all so-called materialized adaptation actions (follow, omit, modify, sort, and create) are conducted on different grain sizes of PD material chunks and with various underlying perspectives. Additionally, thematic adaptation actions mainly refer to facilitators’ ways of dealing with examples and theoretical constructs. Dealing with examples often involves shifts in forms of knowledge, e.g., when facilitators situate a theoretical construct in concrete classroom practices. The article contributes to theory generation on facilitators’ adaptation practices, especially by introducing and illuminating the distinction between materialized and thematic adaptation actions. Conclusion The empirical insights of various underlying perspectives call for practical consequences for the design of PD curriculum material: To ensure that adaptation practices retain or improve quality, the structure of PD curriculum material must preserve the minimal adequate grain size (better the thematic block than the single slide) and the need for shifts in the forms of addressed knowledge.
description: International journal of STEM education;6. 2019, S. 24-1-24-18
Interaction of light with a single atom in the strong focusing regime
Creators: name: Aljunid, Syed Abdullah
name: Chng, Brenda
name: Paesold, Martin
name: Maslennikov, Gleb
name: Kurtsiefer, Christian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the near-resonant interaction between a single atom and a focused light mode, where a single atom localized at the focus of a lens can scatter a significant fraction of light. Complementary to previous experiments on extinction and phase shift effects of a single atom, we report here on the measurement of coherently backscattered light. The strength of the observed effect suggests combining strong focusing with the well-established methods of cavity QED. We consider theoretically a nearly concentric cavity, which should allow for a strongly focused optical mode. Simple estimates show that in a such case one can expect a significant single photon Rabi frequency. This opens new perspectives and a possibility to scale up the system consisting of many atom+cavity nodes for quantum networking due to a significant technical simplification of the atom--light interfaces.
description: 7 pages, 6 figures, followup of workshop "Single photon technologies" in Boulder, CO, 2009
Supplemental Material for Maitra et al., 2021 (GENETICS-2021-304502_R2)
Creators: name: Polymenis, Michael
name: Maitra, Nairita
name: Hammer, Staci
name: Kjerfve, Clara
name: Bankaitis, Vytas
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: 60104 Cell Metabolism
subject: FOS: Biological sciences
subject: 60402 Cell and Nuclear Division
subject: Genetics
subject: Molecular Biology

description: Supplementary Material for "Translational control of lipogenesis links protein synthesis and phosphoinositide signaling with nuclear division in Saccharomyces cerevisiae", by Maitra et al;
RE: GENETICS-2021-304502_R2
AutoCE: An Accurate and Efficient Model Advisor for Learned Cardinality Estimation
Creators: name: Zhang, Jintao
name: Zhang, Chao
name: Li, Guoliang
name: Chai, Chengliang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Cardinality estimation (CE) plays a crucial role in many database-related tasks such as query generation, cost estimation, and join ordering. Lately, we have witnessed the emergence of numerous learned CE models. However, no single CE model is invincible when it comes to the datasets with various data distributions. To facilitate data-intensive applications with accurate and efficient cardinality estimation, it is important to have an approach that can judiciously and efficiently select the most suitable CE model for an arbitrary dataset.
 In this paper, we study a new problem of selecting the best CE models for a variety of datasets. This problem is rather challenging as it is hard to capture the relationship from various datasets to the performance of disparate models. To address this problem, we propose a model advisor, named AutoCE, which can adaptively select the best model for a dataset. The main contribution of AutoCE is the learning-based model selection, where deep metric learning is used to learn a recommendation model and incremental learning is proposed to reduce the labeling overhead and improve the model robustness. We have integrated AutoCE into PostgreSQL and evaluated its impact on query optimization. The results showed that AutoCE achieved the best performance (27% better) and outperformed the baselines concerning accuracy (2.1 times better) and efficacy (4.2 times better).
Current progress in asymmetric Biginelli reaction: an update
Creators: name: Mommahed Heravi, Majid
name: Moradi, Razieh
name: Mohammadkhani, Leyla
name: Moradi, Borzou
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30502 Natural Products Chemistry
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30503 Organic Chemical Synthesis
subject: 30303 Optical Properties of Materials
subject: 30599 Organic Chemistry not elsewhere classified
subject: Organic Chemistry
subject: 30203 Inorganic Green Chemistry
subject: 30504 Organic Green Chemistry

description: The Biginelli reaction, involving a three-component reaction of an aromatic aldehyde, urea and ethyl acetoacetate, has emerged as an extremely useful synthetic tool to organic chemists for the synthesis of 3,4-dihydropyrimidine-2-(1H)-ones and related heterocyclic compounds. In the past decades, the asymmetric variants of this reaction have been at the forefront of investigations in several research groups. In 2013, we highlighted the developments occurred in the asymmetric version of the Biginelli reaction. This review article focuses on the recent developments of asymmetric Biginelli reaction covers the literature going back to 2012.
The sub-mm J=6-5 line of 13CO in Orion
Creators: name: Wilson, T. L.
name: Muders, D.
name: Dumke, M.
name: Henkel, C.
name: Kawamura, Jonathan H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a fully sampled map covering the Orion Hot Core and dense molecular ridge, in the sub-millimeter J=6-5 rotational transition of 13CO, at 0.45 mm with a resolution of 13 arcsec and 0.5 km s^-1. The map covers 3 arc min by 2arc min . The profile centered on the Hot Core peaks at 8.5 km s^-1 and has a peak intensity of 40 K, corrected antenna temperature. It shows line wings from 30 km s^-1 to -20 km s^-1. The map of intensity, integrated from 0 to +18 km s^-1, shows a prominent maximum <5 arcsec from the center of the Orion Hot Core. The FWHP is 3 arcsec, larger than the regions containing complex molecules. Single dish measurements of lines from the J=2-1 or J=1-0 transitions of CO isotopes show no such distinct maximum. Correcting for optical depth 1.5 in the J=6-5 line of 13CO, and assuming that the level populations are thermalized at 150 K, the beam averaged column density between 0 to +18 km s^-1 is N(13CO )=6.8 10^17 cm^-2 and N(CO)=5.2 10^19 cm-2. When combined with published dust emission data, the CO/ H2 number ratio is 2 {\cdot} 10^-5, a factor of ~5 lower than the canonical value, 10^-4. For the Orion South and Orion Ridge region, the column density of CO is <25% of that found for the Hot Core but CO/H2 ratios are similar. Models of Photodissociation Regions, PDRs, predict that CO lines from PDRs are only marginally optically thick. Thus our map traces warm and dense molecular gas rather than PDRs.
description: 23 pages total, including 5 figures
高山の公式
Creators: name: Takayama, Ryo
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 499999
subject: Other mathematical sciences not elsewhere classified

description: 四角形の面積公式はブレットシュナイダーの公式が一般的であるが、一組の向かい合う辺と四つの角による四角形の面積公式が発見された。これを高山の公式と呼ぶ。また、その公式の証明。
การศึกษาความอ่อนตัวและคุณภาพชีวิตด้านร่างกายของผู้สูงอายุจังหวัดจันทบุรีโดยใช้โปรแกรมการฝึกยืดเหยียดกล้ามเนื้อ
Creators: name: ชิดชนก ศรีราช
Publisher: name: คณะนิเทศศาสตร์ มหาวิทยาลัยราชภัฏรำไพพรรณี
Year: 2022
Subjects: ความอ่อนตัว
คุณภาพชีวิตด้านร่างกาย
ผู้สูงอายุ
โปรแกรมการฝึกยืดเหยียดกล้ามเนื้อ

description: วารสารสหวิทยาการสังคมศาสตร์และการสื่อสาร, 5, 3, 180-189
Your (virtual) trainer in the palm of your hand : efficacy of a theory-based exercise application to enhance exercise adherence
Creators: name: Voth, Elizabeth Christine
Publisher: name: University of British Columbia
Year: 2015

description: Background: Use of mobile health (mHealth) technology is on an exponential rise. mHealth applications (apps) have the capability to reach a large number of individuals, but until now have lacked the integration of evidence-based theoretical constructs to increase exercise behaviour in users. Objective: The purpose of this study was to assess the effectiveness of a theory-based, self- monitoring app on exercise and self-monitoring behaviour over 8-weeks. Methods: Fifty-six adults (Mage = 40 years ± 13) were randomly assigned to either receive the mHealth app (experimental; n = 28), or control (control; n = 28). All participants engaged in an exercise goal setting session at baseline. Experimental condition participants received weekly SMS (short-messaging service) text messages grounded in social cognitive theory and were encouraged to self-monitor exercise bouts on the app on a daily basis. Exercise behaviour, frequency of self-monitoring exercise behaviour, self-efficacy to self-monitor, and self- management of exercise behaviour was collected at baseline and post-testing. Results: Engagement in exercise bouts was greater in the experimental condition (M = 7.24, SD = 3.40) as compared to the control condition (M = 4.74, SD = 3.70, P = .03, d = .70) at week-8 post-testing. Frequency of self-monitoring increased significantly over the 8-week investigation between the experimental and control conditions (P < .001, partial η² = .599), with the experimental condition self-monitoring significantly more at post (M = 6.00, SD = 0.93) in comparison to the control condition (M = 1.95, SD = 2.58, P < .001, d = 2.10). Self-efficacy to self-monitor, and perceived self-management of exercise behaviour were unaffected by this intervention. Conclusions: The successful integration of social cognitive theory into an mHealth exercise self- monitoring app provides support for future research to: i) feasibly integrate theoretical constructs into existing exercise apps, and ii) increase self-monitoring and exercise behaviour.
Brane tachyon dynamics
Creators: name: Zhang, Hongsheng
name: Li, Xin-Zhou
name: Noh, Hyerim
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of a tachyon attached to a Dvali, Gabadadze and Porrati (DGP) brane is investigated. Exponential potential and inverse power law potential are explored, respectively. The quasi-attractor behavior, for which the universe will eventually go into a phase similar to the slow-roll inflation, is discovered in both cases of exponential potential and inverse power law potential. The equation of state (EOS) of the virtual dark energy for a single scalar can cross the phantom divide in the branch $θ=-1$ for both potentials, while the EOS of the virtual dark energy for a single scalar can not cross this divide in the branch $θ=1$.
description: 20 pages, 12 figs, to appear in PLB
Equivariant quantization of spin systems
Creators: name: Michel, Jean-Philippe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 53A30, 53C27, 53D50, 53Z05, 58A50, 70H50

description: We investigate the geometric and conformally equivariant quantizations of the supercotangent bundle of a pseudo-Riemannian manifold $(M,g)$, which is a model for the phase space of a classical spin particle. This is a short review of our previous works.
description: 7 pages. From a talk given at the Workshop on Geometric Methods in Physics XXIX
Management of the diamondback moth and other crucifer insect pests (Abstracts)
Creators: name: World Vegetable Center
Publisher: name: World Vegetable Center
Year: 2019
Subjects: DIAMONDBACK MOTH
CRUCIFERAE
PEST INSECTS
CLIMATE CHANGE
PLUTELLA XYLOSTELLA
BIOLOGICAL CONTROL
RESISTANCE
INSECTICIDES
GENETIC CONTROL

description: Meeting information and abstracts.
Subspace Evolution and Transfer (SET) for Low-Rank Matrix Completion
Creators: name: Dai, Wei
name: Milenkovic, Olgica
name: Kerman, Ely
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We describe a new algorithm, termed subspace evolution and transfer (SET), for solving low-rank matrix completion problems. The algorithm takes as its input a subset of entries of a low-rank matrix, and outputs one low-rank matrix consistent with the given observations. The completion task is accomplished by searching for a column space on the Grassmann manifold that matches the incomplete observations. The SET algorithm consists of two parts -- subspace evolution and subspace transfer. In the evolution part, we use a gradient descent method on the Grassmann manifold to refine our estimate of the column space. Since the gradient descent algorithm is not guaranteed to converge, due to the existence of barriers along the search path, we design a new mechanism for detecting barriers and transferring the estimated column space across the barriers. This mechanism constitutes the core of the transfer step of the algorithm. The SET algorithm exhibits excellent empirical performance for both high and low sampling rate regimes.
MOESM5 of Mutagenesis of seed storage protein genes in Soybean using CRISPR/Cas9
Creators: name: Li, Chenlong
name: Nguyen, Vi
name: Liu, Jun
name: Fu, Wenqun
name: Chen, Chen
name: Yu, Kangfu
name: Cui, Yuhai
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 5: Table S2. Summary of GFP-positive hairy roots at puncture sites.
Pressure Evolution of the Magnetic Field induced Ferromagnetic Fluctuation through the Pseudo-Metamagnetism of CeRu2Si2
Creators: name: Aoki, Dai
name: Paulsen, Carley
name: Matsuda, Tatsuma D.
name: Malone, Liam
name: Knebel, Georg
name: Haen, Pierre
name: Lejay, Pascal
name: Settai, Rikio
name: Onuki, Yoshichika
name: Flouquet, Jacques
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Resistivity measurements performed under pressure in the paramagnetic ground state of CeRu2Si2 are reported. They demonstrate that the relative change of effective mass through the pseudo metamagnetic transition is invariant under pressure. The results are compared with the first order metamagnetic transition due to the antiferromagnetism of Ce0.9La0.1Ru2Si2 which corresponds to the "negative" pressure of CeRu2Si2 by volume expansion. Finally, we describe the link between the spin-depairing of quasiparticles on CeRu2Si2 and that of Cooper pairs on the unconventional heavy fermion superconductor CeCoIn5.
description: 5 pages, 6 figures, accepted for publication in J. Phys. Soc. Jpn
Supplemental revision final from Reconstitution of the recombinant human γ-tubulin ring complex
Creators: name: Würtz, Martin
name: Böhler, Anna
name: Neuner, Annett
name: Zupa, Erik
name: Rohland, Lukas
name: Liu, Peng
name: Vermeulen, Bram J.A.
name: Pfeffer, Stefan
name: Eustermann, Sebastian
name: Schiebel, Elmar
Publisher: name: The Royal Society
Year: 2021

description: Cryo-electron microscopy recently resolved the structure of the vertebrate γ-tubulin ring complex (γ-TuRC) purified from Xenopus laevis egg extract and human cells to near-atomic resolution. These studies clarified the arrangement and stoichiometry of γ-TuRC components and revealed that one molecule of actin and the small protein MZT1 are embedded into the complex. Based on this structural census of γ-TuRC core components, we developed a recombinant expression system for the reconstitution and purification of human γ-TuRC from insect cells. The recombinant γ-TuRC recapitulates the structure of purified native γ-TuRC and has similar functional properties in terms of microtubule nucleation and minus end capping. This recombinant system is a central step towards deciphering the activation mechanisms of the γ-TuRC and the function of individual γ-TuRC core components.
Coherence properties of a single dipole emitter in diamond
Creators: name: Marshall, Graham D.
name: Gaebel, Torsten
name: Matthews, Jonathan C. F.
name: Enderlein, Jorg
name: O'Brien, Jeremy L.
name: Rabeau, James R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: On-demand, high repetition rate sources of indistinguishable, polarised single photons are the key component for future photonic quantum technologies. Colour centres in diamond offer a promising solution, and the narrow line-width of the recently identified nickel-based NE8 centre makes it particularly appealing for realising the transform-limited sources necessary for quantum interference. Here we report the characterisation of dipole orientation and coherence properties of a single NE8 colour centre in a diamond nanocrystal at room-temperature. We observe a single photon coherence time of 0.21 ps and an emission lifetime of 1.5 ns. Combined with an emission wavelength that is ideally suited for applications in existing quantum optical systems, these results show that the NE8 is a far more promising source than the more commonly studied nitrogen-vacancy centre and point the way to the realisation of a practical diamond colour centre-based single photon source.
description: 10 pages, 4 colour figures
การออกแบบผลิตภัณฑ์สร้างสรรค์จากสภาวะการเปลี่ยนแปลงของสิ่งแวดล้อม
Creators: name: ราชา ธงภักดิ์
Publisher: name: คณะนิเทศศาสตร์ มหาวิทยาลัยราชภัฏรำไพพรรณี
Year: 2022
Subjects: ผลิตภัณฑ์สร้างสรรค์
การออกแบบ
สิ่งแวดล้อม

description: วารสารสหวิทยาการสังคมศาสตร์และการสื่อสาร, 5, 3, 190-203
Towards click chemistry. Multicomponent reactions via combinations of name reactions
Creators: name: Mommahed Heravi, Majid
name: Zadsirjan, Vahideh
name: Dehghani, Mahzad
name: Ahmadi, Tahereh
Publisher: name: figshare
Year: 2022
Subjects: subject: 30502 Natural Products Chemistry
subject: FOS: Chemical sciences
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30503 Organic Chemical Synthesis
subject: 30303 Optical Properties of Materials
subject: 30505 Physical Organic Chemistry
subject: Organic Chemistry
subject: 30504 Organic Green Chemistry
subject: 30599 Organic Chemistry not elsewhere classified

description: in this report, we try to show the importance of incorporation of name reactions in the sequential cascade reaction in which significantly decreasing the number of steps towards an ideal and practical multi-step synthesis of natural products as well showing virtually all the advantages already mentioned for “Click Chemistry”. In addition, since the chiral inductions are desired for most of these sequential name reactions, their asymmetric catalyzed reactions were also described.
Multidimensional lattice walk enumeration through coefficient extraction operators
Creators: name: Vlasev, Aleksandar
Publisher: name: University of British Columbia
Year: 2015

description: In this thesis, we investigate the enumeration of lattice walk models, with or without interactions, in multiple dimensions, through the use of linear operators comprised of coefficient or term extractions. This is done with the goal of furthering our abilities to automate the derivation and solutions of the functional equations for the generating functions for the models. In particular, for a fairly large class of d-dimensional lattice walk models with interactions and arbitrary step sets, the generating function Q satisfies the functional equation (1 - tΓS)Q = q, where Γ is an operator, and S and q are Laurent polynomials. We can automatically expand this equation to obtain an explicit functional equation satisfied by Q. For example, we derive an equation for d-dimensional lattice walks with interactions and small steps living in an orthant. We also use this operator approach to unify and extend the algebraic and obstinate kernel methods through the use of a weighted orbit summation operator and substitutions. Other topics include: a partial classification of two-dimensional models with interactions and small steps on the quarter plane, explicit relations for Q and partially-interacting versions of itself for some models, and an analysis of some of the more abstract properties of the operators involved.
Size of the group IVA iron meteorite core: Constraints from the age and composition of Muonionalusta
Creators: name: Moskovitz, Nicholas A.
name: Walker, Richard J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The group IVA fractionally crystallized iron meteorites display a diverse range of metallographic cooling rates. These have been attributed to their formation in a metallic core, approximately 150 km in radius, that cooled to crystallization in the absence of any appreciable insulating mantle. Here we build upon this formation model by incorporating several new constraints. These include (i) a recent U-Pb radiometric closure age of <2.5 Myr after solar system formation for the group IVA iron Muonionalusta, (ii) new measurements and modeling of highly siderophile element compositions for a suite of IVAs, and (iii) consideration of the thermal effects of heating by the decay of the short-lived radionuclide 60Fe. Our model for the thermal evolution of the IVA core suggests that it was approximately 50 - 110 km in radius after being collisionally exposed. This range is due to uncertainties in the initial abundance of live 60Fe incorporated into the IVA core. Our models define a relationship between cooling rate and closure age, which is used to make several predictions that can be tested with future measurements. In general, our results show that diverse cooling rates and early U-Pb closure ages can only coexist on mantle-free bodies and that energy released by the decay of 60Fe reduces the core size necessary to produce diverse metallographic cooling rates. The influence of 60Fe on cooling rates has largely been neglected in previous core formation models; accounting for this heat source can affect size estimates for other iron meteorite cores that cooled to crystallization in the presence of live 60Fe. Candidates for such a scenario of early, mantle-free formation include the iron IIAB, IIIAB and IVB groups.
description: 30 pages, 3 figures, accepted to Earth and Planetary Science Letters