cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A homotopy-minimization method for parameter estimation in differential equations and its application in unraveling the reaction mechanism of the Min system
Creators: name: Carlquist, William Christopher
Publisher: name: University of British Columbia
Year: 2019

description: A mathematical model of a dynamical process, often in the form of a system of differential equations, serves to elucidate underlying dynamical structure and behavior of the process that may otherwise remain opaque. However, model parameters are often unknown and may need to be estimated from data for a model to be informative. Numerical-integration-based methods, which estimate parameters in a differential equation model by fitting numerical solutions to data, can demand extensive computation, especially for large stiff systems that require implicit methods for stability. Non-numerical integration methods, which estimate parameters in a differential equation model by fitting solution approximations to data, do not provide an impartial measure of how well a model fits data, a measure required for the testability of a model. In this dissertation, I propose a new method that steps back from a numerical-integration-based method, and instead allows an optimal data-fitting numerical solution to emerge as part of an optimization process. This method bypasses the need for implicit solution methods, which can be computationally intensive, seems to be more robust than numerical-integration-based methods, and, interestingly, admits conservation principles and integral representations, which allow me to gauge the accuracy of my optimization. The Escherichia coli Min system is one of the simplest known biological systems that demonstrates diverse complex dynamic behavior or transduces local interactions into a global signal. Various mathematical models of the Min system show behaviors that are qualitatively similar to dynamic behaviors of the Min system that have been observed in experiments, but no model has been quantitatively compared to time-course data. In this dissertation, I extract time-course data for model fitting from experimental measurements of the Min system and fit established and novel biochemistry-based models to the time-course data using my parameter estimation method for differential equations. Comparing models to time-course data allows me to make precise distinctions between biochemical assumptions in the various models. My modeling and fitting supports a novel model, which suggests that a regular, ordered, stability-switching mechanism underlies the emergent, dynamic behavior of the Min system.
The Origin and Evolution of the Halo PN BoBn 1: From a Viewpoint of Chemical Abundances Based on Multiwavelength Spectra
Creators: name: Otsuka, M.
name: Tajitsu, A.
name: Hyung, S.
name: Izumiura, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have performed a comprehensive chemical abundance analysis of the extremely metal-poor ([Ar/H]
description: 28 pages, 14 figures, accepted for publication in ApJ
Element-resolved orbital polarization in (III,Mn)As ferromagnetic semiconductors from $K$ edge x-ray magnetic circular dichroism
Creators: name: Wadley, P.
name: Freeman, A. A.
name: Edmonds, K. W.
name: van der Laan, G.
name: Chauhan, J. S.
name: Campion, R. P.
name: Rushforth, A. W.
name: Gallagher, B. L.
name: Foxon, C. T.
name: Wilhelm, F.
name: Smekhova, A. G.
name: Rogalev, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using x-ray magnetic circular dichroism (XMCD), we determine the element-specific character and polarization of unoccupied states near the Fermi level in (Ga,Mn)As and (In,Ga,Mn)As thin films. The XMCD at the As K absorption edge consists of a single peak located on the low-energy side of the edge, which increases with the concentration of ferromagnetic Mn moments. The XMCD at the Mn K edge is more detailed and is strongly concentration-dependent, which is interpreted as a signature of hole localization for low Mn doping. The results indicate a markedly different character of the polarized holes in low-doped insulating and high-doped metallic films, with a transfer of the hole orbital magnetic moment from Mn to As sites on crossing the metal-insulator transition.
description: 5 figures, to be published in Physical Review B
Comparative investigation of using DEB oil and supercharging syngas and DEB oil as a dual fuel in a DI diesel engine
Creators: name: Ekkachai Sutheerasak
name: Worachest Pirompugd
name: Wirogana Ruengphrathuengsuka
name: Surachai Sanitjai
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: DEB oil
Supercharged syngas
Diesel engine
Performance
Emissions

description: Engineering and Applied Science Research, 46, 1, 26-36
title: Ð¡ÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° cÐµÑÐµÐ±ÑÐ¾ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ¸Ñ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð½ÑÑ Ð½Ð°Ð½Ð¾ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Structure and properties of silver-containing carbon nano composites
Creators: name: ÐÐ¾Ð½Ð´ÑÐ°ÑÑÐµÐ², ÐÐ°Ð»ÐµÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÐ³Ð»ÐµÑÐ¾Ð´
ÐºÑÐµÐ¼Ð½Ð¸Ð¹
Ð³ÑÐ°ÑÐ¸Ñ
Ð°Ð»Ð¼Ð°Ð·
Ð¿Ð»ÐµÐ½ÐºÐ°
ÑÐµÑÐµÐ±ÑÐ¾
dlc
carbon
silicon
graphite
diamond
coating
silver

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° ÑÐµÑÐµÐ±ÑÐ¾ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ¸Ñ Ð°Ð»Ð¼Ð°Ð·Ð¾Ð¿Ð¾Ð´Ð¾Ð±Ð½ÑÑ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð½ÑÑ Ð¿Ð¾ÐºÑÑÑÐ¸Ð¹, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´ÑÐ³Ð¸, Ð¿ÑÐ¸ ÑÐ°Ð·Ð½Ð¾Ð¼ Ð¾ÑÐ½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¼ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ðµ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð² Ð½Ð° ÐºÐ°ÑÐ¾Ð´Ð°Ñ Ð¸Ñ Ð³ÑÐ°ÑÐ¸ÑÐ° Ð¸ ÑÐµÑÐµÐ±ÑÐ°. ÐÑÐ»Ð¾ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾ ÑÑÐ¾, ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ ÑÐµÑÐµÐ±ÑÐ° Ð² Ð¿Ð»ÐµÐ½ÐºÐµ ÑÐ°ÑÑÐµÑ Ð¿ÑÐ¾Ð¿Ð¾ÑÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð². ÐÑÐ¾ÑÐµÐ½Ñ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ Ð°Ð»Ð¼Ð°Ð·Ð½Ð¾Ð¹ sp3 ÑÐ°Ð·Ñ Ð¿Ð°Ð´Ð°ÐµÑ, Ð° ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ ÐºÐ¸ÑÐ»Ð¾ÑÐ¾Ð´Ð½ÑÑ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ ÑÐ²ÐµÐ»Ð¸ÑÐ¸Ð²Ð°ÐµÑÑÑ Ñ ÑÐ¾ÑÑÐ¾Ð¼ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¸ ÑÐµÑÐµÐ±ÑÐ° Ð² Ð¿Ð»Ð°Ð½ÐºÐµ. Ð¡ÐµÑÐµÐ±ÑÐ¾, Ð² Ð¾ÑÐ»Ð¸ÑÐ¸Ðµ Ð¾Ñ Ð¼ÐµÐ´Ð¸ Ð¸ Ð½Ð¸ÐºÐµÐ»Ñ, ÑÐ¾ÑÐ¼Ð¸ÑÑÐµÑ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸ÑÑ, ÐºÐ°Ðº Ð²Ð½ÑÑÑÐ¸, ÑÐ°Ðº Ð¸ Ð½Ð° Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð½Ð¾Ð¹ Ð¼Ð°ÑÑÐ¸ÑÑ.
description: In this paper, we studied properties of silver-containing diamond-like carbon films obtained by the filtered vacuum arc technique using a two-cathode system at different relative concentrations of silver. It is established that, with an increase in the number of pulses on a silver cathode, the silver concentration in the film increases proportionally to the ratio of the number of pulses, the sp3 phase content decreases, and the percentage of oxygen compounds simultaneously increases. Silver, unlike copper and nickel, forms metallic nanoparticles, situated both inside and on the surface of the carbon film.
Comments on scaling limits of 4d N=2 theories
Creators: name: Gaiotto, Davide
name: Seiberg, Nathan
name: Tachikawa, Yuji
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the study of the maximally singular point in the Coulomb branch of 4d N=2 SU(N) gauge theory with N_f=2n flavors for N_f<2N. When n >= 2, we find that the low-energy physics is described by two non-trivial superconformal field theories coupled to a magnetic SU(2) gauge group which is infrared free. (In the special case n=2, one of these theories is a theory of free hypermultiplets.) This observation removes a possible counter example to a conjectured a-theorem.
description: 13 pages
Damage evaluation of fiber-reinforced concrete exposed to elevated temperatures by nondestructive tests
Creators: name: Prae Suwanvitaya
name: Piya Chotickai
name: Otsuki Nobuaki
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Fiber reinforced concrete
High temperature
Residual strength
Ultrasonic pulse velocity
Visual inspection

description: Engineering and Applied Science Research, 46, 1, 37-43
Forecasting oil palm and crude palm oil data in Thailand using exponential time-series methods
Creators: name: Kittiphoom Suppalakpanya
name: Ruamporn Nikhom
name: Thitima Booranawong
name: Apidet Booranawong
Publisher: name: Faculty of Engineering, Khon Kaen University
Year: 2019
Subjects: Crude palm oil prices
Crude palm oil productions
Oil palm prices
Forecasting
Time-series methods

description: Engineering and Applied Science Research, 46, 1, 44-55
Ideal quantum gas in expanding cavity: nature of non-adiabatic force
Creators: name: Nakamura, K.
name: Avazbaev, S. K.
name: Sobirov, Z. A.
name: Matrasulov, D. U.
name: Monnai, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We consider a quantum gas of non-interacting particles confined in the expanding cavity, and investigate the nature of the non-adiabatic force which is generated from the gas and acts on the cavity wall. Firstly, with use of the time-dependent canonical transformation which transforms the expanding cavity to the non-expanding one, we can define the force operator. Secondly, applying the perturbative theory which works when the cavity wall begins to move at time origin, we find that the non-adiabatic force is quadratic in the wall velocity and thereby does not break the time-reversal symmetry, in contrast with the general belief. Finally, using an assembly of the transitionless quantum states, we obtain the nonadiabatic force exactly. The exact result justifies the validity of both the definition of force operator and the issue of the perturbative theory. The mysterious mechanism of nonadiabatic transition with use of transitionless quantum states is also explained. The study is done on both cases of the hard-wall and soft-wall confinement with the time-dependent confining length.
title: Einfluss der approximalen Kastenbodenpräparation auf die Randqualität von Keramikinlays
title: influence of different preparation regimens of the proximal box on marginal quality of ceramic inlays
titleType: AlternativeTitle
Creators: name: Friedrich, Katharina
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Keramik
Präparation
Kastenboden
ceramic inlays
Medical sciences Medicine
Medizin
Keramikinlays

description: Das Ziel dieser Dissertation war es, den Einfluss der approximalen Kastenbodenpräparation auf die Randqualität von Keramikinlays zu beleuchten. Hierbei sollte insbesondere genau begutachtet werden, ob der Erhalt einer äußeren, dünnen Schmelzlamelle einen gravierenden Einfluss auf die Langlebigkeit der Restauration hat, ob es zu Schmelzrissen oder Schwächungen der restlichen Zahnhartsubstanz kommt und ob man in einem solchen Fall das Entfernen einer solchen Schmelzlamelle bevorzugen sollte. Hierfür wurden zum einen die Ergebnisse des Versuches im Allgemeinen auf Schwächen in der Randqualität untersucht, zum anderen wurde auch eine Analyse bezüglich der unterschiedlichen Kompositzemente und deren Einfluss auf die Randqualität betrieben. Zum Einsatz gekommen sind Variolink Esthetik DC (Ivoclar Vivadent), TheraCem Ca (Bisco), Visalys CemCore Komposit (Kettenbach) und Panavia SA Cement Universal (Kuraray). Die Ergebnisse wurden mit den Ergebnissen von gleichen Materialien mit Dentin-Begrenzung verglichen.
Uncovering, creating or constructing problems? Enacting a new role to support staff who raise concerns about quality and safety in the English National Health Service
Creators: name: Martin, Graham P
name: Chew, Sarah
name: Dixon-Woods, Mary
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Articles
candour
employee voice
England
freedom to speak up
healthcare quality
National Health Service
openness
patient safety
speaking out
speaking up
whistleblowing

description: Funder: National Institute for Health Research; FundRef: https://doi.org/10.13039/501100000272
description: Employee voice is an important source of organizational intelligence about possible problems in quality and patient safety, but effective systems for encouraging and supporting those who seek to speak up have remained elusive. In the English National Health Service, a novel role known as the ‘Freedom to Speak Up Guardian’ has been introduced to address this problem. We critically examine the role and its realization in practice, drawing on semi-structured interviews with 51 key individuals, including Guardians, clinicians, managers, policymakers, regulators and others. Operationalizing the new role in organizations was not straightforward, since it had to sit in a complex set of existing systems and processes. One response was to seek to bound the scope of Guardians, casting them in a signposting or coordinating role in relation to quality and safety concerns. However, the role proved hard to delimit, not least because the concerns most frequently voiced in practice differed in character from those anticipated in the role’s development. Guardians were tasked with making sense of and dealing with issues that could not always straightforwardly be classified, deflected to the right system or escalated to the appropriate authority. Our analysis suggests that the role’s potential contribution might be understood less as supporting whistleblowers who bear witness to clear-cut wrongdoing, and more as helping those with lower-level worries to construct their concerns and what to do with them. These findings have implications for how voice is understood, imagined and addressed in healthcare organizations.
Genomics of the Argentinian cholera epidemic elucidate the contrasting dynamics of epidemic and endemic Vibrio cholerae
Creators: name: Dorman, Matthew J.
name: Domman, Daryl
name: Poklepovich, Tomás
name: Tolley, Charlotte
name: Zolezzi, Gisella
name: Kane, Leanne
name: Viñas, María Rosa
name: Panagópulo, Marcela
name: Moroni, Miriam
name: Binsztein, Norma
name: Caffer, María Inés
name: Clare, Simon
name: Dougan, Gordon
name: Salmond, George P. C.
name: Parkhill, Julian
name: Campos, Josefina
name: Thomson, Nicholas R.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/631/326/1320
/631/326/325/2482
/631/326/421
/692/699/255/1318
/45
/45/23
article

description: Funder: U.S. Department of Health & Human Services | National Institutes of Health (NIH)
description: Abstract: In order to control and eradicate epidemic cholera, we need to understand how epidemics begin, how they spread, and how they decline and eventually end. This requires extensive sampling of epidemic disease over time, alongside the background of endemic disease that may exist concurrently with the epidemic. The unique circumstances surrounding the Argentinian cholera epidemic of 1992–1998 presented an opportunity to do this. Here, we use 490 Argentinian V. cholerae genome sequences to characterise the variation within, and between, epidemic and endemic V. cholerae. We show that, during the 1992–1998 cholera epidemic, the invariant epidemic clone co-existed alongside highly diverse members of the Vibrio cholerae species in Argentina, and we contrast the clonality of epidemic V. cholerae with the background diversity of local endemic bacteria. Our findings refine and add nuance to our genomic definitions of epidemic and endemic cholera, and are of direct relevance to controlling current and future cholera epidemics.
Noise Corruption of Empirical Mode Decomposition and Its Effect on Instantaneous Frequency
Creators: name: Kaslovsky, Daniel N.
name: Meyer, Francois G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Huang's Empirical Mode Decomposition (EMD) is an algorithm for analyzing nonstationary data that provides a localized time-frequency representation by decomposing the data into adaptively defined modes. EMD can be used to estimate a signal's instantaneous frequency (IF) but suffers from poor performance in the presence of noise. To produce a meaningful IF, each mode of the decomposition must be nearly monochromatic, a condition that is not guaranteed by the algorithm and fails to be met when the signal is corrupted by noise. In this work, the extraction of modes containing both signal and noise is identified as the cause of poor IF estimation. The specific mechanism by which such "transition" modes are extracted is detailed and builds on the observation of Flandrin and Goncalves that EMD acts in a filter bank manner when analyzing pure noise. The mechanism is shown to be dependent on spectral leak between modes and the phase of the underlying signal. These ideas are developed through the use of simple signals and are tested on a synthetic seismic waveform.
description: 28 pages, 19 figures. High quality color figures available on Daniel Kaslovsky's website: http://amath.colorado.edu/student/kaslovsk/
title: Über die Darstellung 2,6-Di-iso-propylphenyl substituierter Bismutverbindungen und neuer bismuthaltiger Interpnictogenverbindungen
title: About the Preparation of 2,6-Di-iso-propylphenyl Substituted Bismuth Compounds and new Bismuth Containing Interpnictogen Compounds
titleType: AlternativeTitle
Creators: name: Dunaj, Tobias
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Bismuth
Chemistry & allied sciences
Chemie
MOVPE
Metallorganic
Pniktogene
Bismut
Metallorganik
Interpniktogenverbindungen
Interpnictogencompounds

description: Ziel der vorliegenden Dissertation war die Darstellung neuer Interpnictogenverbindungen mit terminalen Diarylbismut-Einheiten. Die Darstellung erfolgte aus Verbindungen der Form Ar2BiX (X = F, Cl, Br), wobei als Aromaten Phenyl-, Mesityl und 2,6-Di-iso-propylphenyl-Substituenten eingesetzt wurden, um den Einfluss des sterischen Anspruchs auf die Stabilität der Verbindungen zu untersuchen. Arylhalidobismutane mit Phenyl- und Mesityl-Substituenten sind weitestgehend in der Literatur beschrieben. Dagegen wurde der Dipp-Substituent im Rahmen dieser Arbeit in die Bismut-Chemie eingeführt. Weiterhin wurde der Aufbau neuer bismuthaltiger Interpnictogenverbindungen mit Bi-N, -P, -As und -Sb Einfachbindung untersucht und deren Reaktivität evaluiert.
Investigating host-microbiome interactions by droplet based microfluidics
Creators: name: Tauzin, Alexandra S.
name: Pereira, Mariana Rangel
name: Van Vliet, Liisa D.
name: Colin, Pierre-Yves
name: Laville, Elisabeth
name: Esque, Jeremy
name: Laguerre, Sandrine
name: Henrissat, Bernard
name: Terrapon, Nicolas
name: Lombard, Vincent
name: Leclerc, Marion
name: Doré, Joël
name: Hollfelder, Florian
name: Potocki-Veronese, Gabrielle
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Research
Functional metagenomics
Droplet microfluidics
Human gut microbiota
Human glycans
Beta-N-acetyl-galactosaminidase

description: Funder: Royal Society Newton fellowship
description: Funder: CAPES Scholarship - Brazil
description: Abstract: Background: Despite the importance of the mucosal interface between microbiota and the host in gut homeostasis, little is known about the mechanisms of bacterial gut colonization, involving foraging for glycans produced by epithelial cells. The slow pace of progress toward understanding the underlying molecular mechanisms is largely due to the lack of efficient discovery tools, especially those targeting the uncultured fraction of the microbiota. Results: Here, we introduce an ultra-high-throughput metagenomic approach based on droplet microfluidics, to screen fosmid libraries. Thousands of bacterial genomes can be covered in 1 h of work, with less than ten micrograms of substrate. Applied to the screening of the mucosal microbiota for β-N-acetylgalactosaminidase activity, this approach allowed the identification of pathways involved in the degradation of human gangliosides and milk oligosaccharides, the structural homologs of intestinal mucin glycans. These pathways, whose prevalence is associated with inflammatory bowel diseases, could be the result of horizontal gene transfers with Bacteroides species. Such pathways represent novel targets to study the microbiota-host interactions in the context of inflammatory bowel diseases, in which the integrity of the mucosal barrier is impaired. Conclusion: By compartmentalizing experiments inside microfluidic droplets, this method speeds up and miniaturizes by several orders of magnitude the screening process compared to conventional approaches, to capture entire metabolic pathways from metagenomic libraries. The method is compatible with all types of (meta)genomic libraries, and employs a commercially available flow cytometer instead of a custom-made sorting system to detect intracellular or extracellular enzyme activities. This versatile and generic workflow will accelerate experimental exploration campaigns in functional metagenomics and holobiomics studies, to further decipher host-microbiota relationships. BEyZgKg3YsWtKJ_ei8gXkiVideo Abstract
Dissemination of Mycobacterium abscessus via global transmission networks
Creators: name: Ruis, Christopher
name: Bryant, Josephine M.
name: Bell, Scott C.
name: Thomson, Rachel
name: Davidson, Rebecca M.
name: Hasan, Nabeeh A.
name: Van Ingen, Jakko
name: Strong, Michael
name: Floto, R. Andres
name: Parkhill, Julian
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/631/326/325/2482
/631/326/421
/631/181/457/649
/45
/45/23
article

description: Funder: Cystic Fibrosis Foundation (CF Foundation); doi: https://doi.org/10.13039/100000897
description: Abstract: Mycobacterium abscessus, a multidrug-resistant nontuberculous mycobacterium, has emerged as a major pathogen affecting people with cystic fibrosis (CF). Although originally thought to be acquired independently from the environment, most individuals are infected with one of several dominant circulating clones (DCCs), indicating the presence of global transmission networks of M. abscessus. How and when these clones emerged and spread globally is unclear. Here, we use evolutionary analyses of isolates from individuals both with and without CF to reconstruct the population history, spatiotemporal spread and recent transmission networks of the DCCs. We demonstrate synchronous expansion of six unrelated DCCs in the 1960s, a period associated with major changes in CF care and survival. Each of these clones has spread globally as a result of rare intercontinental transmission events. We show that the DCCs, but not environmentally acquired isolates, exhibit a specific smoking-associated mutational signature and that current transmission networks include individuals both with and without CF. We therefore propose that the DCCs initially emerged in non-CF populations but were then amplified and spread through the CF community. While individuals with CF are probably the most permissive host, non-CF individuals continue to play a key role in transmission networks and may facilitate long-distance transmission.
Strain maps characterize the symmetry of convergence and extension patterns during zebrafish gastrulation
Creators: name: Bhattacharya, Dipanjan
name: Zhong, Jun
name: Tavakoli, Sahar
name: Kabla, Alexandre
name: Matsudaira, Paul
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/631/57
/631/136
article

description: Funder: Mechanobiology Institute, Singapore; doi: http://dx.doi.org/10.13039/501100007672
description: Abstract: During gastrulation of the zebrafish embryo, the cap of blastoderm cells organizes into the axial body plan of the embryo with left–right symmetry and head–tail, dorsal–ventral polarities. Our labs have been interested in the mechanics of early development and have investigated whether these large-scale cell movements can be described as tissue-level mechanical strain by a tectonics-based approach. The first step is to image the positions of all nuclei from mid-epiboly to early segmentation by digital sheet light microscopy, organize the surface of the embryo into multi-cell spherical domains, construct velocity fields from the movements of these domains and extract strain rate maps from the change in density of the domains. During gastrulation, tensile/expansive and compressive strains in the axial and equatorial directions are detected as anterior and posterior expansion along the anterior–posterior axis and medial–lateral compression across the dorsal–ventral axis and corresponds to the well characterized morphological movements of convergence and extension. Following gastrulation strain is represented by localized medial expansion at the onset of segmentation and anterior expansion at the onset of neurulation. In addition to linear strain, symmetric patterns of rotation/curl are first detected in the animal hemispheres at mid-epiboly and then the vegetal hemispheres by the end of gastrulation. In embryos treated with C59, a Wnt inhibitor that inhibits head and tail extension, the axial extension and vegetal curl are absent. By analysing the temporal sequence of large-scale movements, deformations across the embryo can be attributed to a combination of epiboly and dorsal convergence-extension.
Flavor changing Z' couplings at the LHC
Creators: name: Gupta, Sudhir Kumar
name: Valencia, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models with a non-universal Z' exhibit in general flavor changing neutral currents (FCNC) at tree-level. When the Z' couplings favor the third generation, flavor changing transitions of the form Z'tc and Z'tu could be large enough to be observable at the LHC. In this paper we explore this possibility using the associated production of a single top-quark with the Z' and find that integrated luminosities of a few hundred fb$^{-1}$ are necessary to probe the interesting region of parameter space.
description: 12 LaTeX Pages, 10 EPS Figures
Reactive oxygen species and transient receptor potential cation channel vanilloid 1 (TRPV1) as mediators of Wallerian degeneration
Creators: name: Kievit, Bradley James
Publisher: name: University of British Columbia
Year: 2019

description: Axons that are physically separated from their cell soma undergo degradation through a process termed “Wallerian degeneration” (WD). This process, typically induced by acute injury, was initially thought to occur as a result of axons passively “wasting away” since they are no longer receiving nutrient supply from the soma. However, subsequent discoveries revealed that axons degenerate by activation of a prodegenerative signalling pathway and that inhibition of key elements of this pathway can protect axons. Furthermore, inhibiting WD in various disease models such as glaucoma, Parkinson’s disease and motor neuron disease protects axons from degeneration. One key element of WD is an intra-axonal calcium rise that occurs just before axons begin to fragment. Preventing this calcium rise delays the onset of axon fragmentation. To date, the full complement of ion channels responsible for this calcium influx have not been identified. Furthermore, the mechanism by which these calcium channels are activated is unknown. WD can be modeled in vitro by transecting axons of dorsal root ganglia (DRG), which separates them from their soma. We have used this model along with the Ca²⁺ sensor dye Fluo-4-AM to show that Ca²⁺ influx is reduced in axons treated with capsazepine (CPZ), an antagonist of the transient receptor potential cation channel vanilloid 1 (TRPV1), as well as in Trpv1-/- axons. Furthermore, CPZ-treated sensory neurons and DRGs of a Trpv1-/- background were partially rescued from degeneration after transection, indicating a prodegenerative role for TRPV1. We found that reactive oxygen species (ROS) mediate the activation of TRPV1 in this setting and, consistent with this, ROS-scavengers abolished Ca²⁺ influx in transected axons. Furthermore, we found that mitochondrial depolarization, a phenomenon that is known to occur during WD, triggers a ROS-dependent calcium influx through TRPV1 when initiated by the mitochondrial poison carbonyl cyanide m-chlorophenyl hydrazine (CCCP). CCCP also induces degeneration in cultured sensory neurons but is protected by Ca²⁺ chelation, ROS scavenging and inhibition of TRPV1 with CPZ. This thesis shows for the first time that TRPV1 is involved in WD and suggests that mitochondrial ROS are responsible for initiating calcium rise by sensitization of calcium channels.
title: Robotique pédagogique : acceptabilité et acceptation des robots chez les enseignants du primaire
title: Robotique pédagogique : acceptabilité et acceptation des robots chez les enseignants du primaire
titleType: AlternativeTitle
Creators: name: Martinez, Felipe
Publisher: name: Unknown
Year: 0
Subjects: subject: Robot
subject: robotique pédagogique
subject: Technology Acceptance Model
subject: acceptabilité
subject: acceptation
subject: résistance au changement
subject: pratique enseignante

description: Les raisons qui constituent un frein à l’intégration du numérique ou des MITIC dans l’enseignement sont fréquemment listées dans la littérature. Les robots à usage pédagogique constituent une nouveauté technologique dans le panorama éducatif vaudois et comportent leur lot d’interrogations. Dès lors, la nécessité de saisir les raisons qui sous-tendent le comportement des enseignants face à ce nouvel outil se profile comme une question de fond. Le présent travail propose une modélisation de l’acceptabilité inspirée du « Technology Acceptance Model » de Davis, Bagozzi et Warshaw (1989) afin de cibler les éléments qui constituent des résistances à l’intégration des robots chez les enseignants. Dans le but de l’appliquer au degré scolaire primaire, le modèle proposé est étayé par des variables liées aux pratiques d’enseignement. Les données récoltées à travers 3 questionnaires ont permis de définir les changements qui s’opèrent chez les enseignants au sein du processus d’adoption de la technologie de Terrade, Pasquier, Reerinck-Boulanger, Guingouain et Somat (2009). Une découverte de la robotique organisée dans le cadre d’une formation continue a permis de se centrer plus particulièrement sur le passage de la phase d’acceptabilité vers la phase d’acceptation. Les résultats obtenus mettent en relief l’importance des variables d’ordre affectif et social. Le fait de découvrir un robot dans un cadre de formation institutionnalisé active ces variables et leur lien avec la facilité d’utilisation perçue et l’utilité perçue. Par ailleurs, certains éléments liés aux pratiques d’enseignement, notamment l’organisation spatiale de la classe, semblent se rattacher à des intentions comportementales accrues. En outre, les résultats incitent à avancer que l’utilité des robots se positionne comme une question à approfondir dans une phase d’appropriation. D’autres études permettraient ainsi de saisir plus amplement les possibles résistances des enseignants face aux robots.
A Nonlinear Elliptic PDE with Two Sobolev-Hardy Critical Exponents
Creators: name: Li, YanYan
name: Lin, Chang-Shou
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J60

description: In this paper, we consider the following PDE involving two Sobolev-Hardy critical exponents, \label{0.1} {& Δu + λ\frac{u^{2^*(s_1)-1}}{|x|^{s_1}} + \frac{u^{2^*(s_2)-1}}{|x|^{s_2}} =0 \text{in} Ω, & u=0 \qquad \text{on} Ω, where $0 \le s_2 < s_1 \le 2$, $0 \ne λ\in \Bbb R$ and $0 \in \partial Ω$. The existence (or nonexistence) for least-energy solutions has been extensively studied when $s_1=0$ or $s_2=0$. In this paper, we prove that if $0< s_2 < s_1 <2$ and the mean curvature of $\partial Ω$ at 0 $H(0)<0$, then \eqref{0.1} has a least-energy solution. Therefore, this paper has completed the study of \eqref{0.1} for the least-energy solutions. We also prove existence or nonexistence of positive entire solutions of \eqref{0.1} with $Ω=\rn$ under different situations of $s_1, s_2$ and $λ$.
ปริทัศน์หนังสือ - การเมืองเปรียบเทียบ: ทฤษฎี แนวคิด และกรณีศึกษา
Creators: name: ปรีชภักดิ์ ทีคาสุข
Publisher: name: คณะสังคมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2562
Subjects: -

description: วารสารสังคมศาสตร์ มหาวิทยาลัยนเรศวร, 15, 1, 249
Simulation of chemical reaction dynamics on an NMR quantum computer
Creators: name: Lu, Dawei
name: Xu, Nanyang
name: Xu, Ruixue
name: Chen, Hongwei
name: Gong, Jiangbin
name: Peng, Xinhua
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulation can beat current classical computers with minimally a few tens of qubits and will likely become the first practical use of a quantum computer. One promising application of quantum simulation is to attack challenging quantum chemistry problems. Here we report an experimental demonstration that a small nuclear-magnetic-resonance (NMR) quantum computer is already able to simulate the dynamics of a prototype chemical reaction. The experimental results agree well with classical simulations. We conclude that the quantum simulation of chemical reaction dynamics not computable on current classical computers is feasible in the near future.
description: 37 pages, 7 figures
Fibre optic sensing of ageing railway infrastructure enhanced with statistical shape analysis
Creators: name: Alexakis, Haris
name: Lau, F. Din-Houn
name: DeJong, Matthew J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Original Paper
Asset management
Masonry structures
Fibre optics
Shape analysis
Bridges

description: Funder: Aston University
description: Abstract: Developing early-warning sensor-based maintenance systems for ageing railway infrastructure, such as masonry arch bridges, can be a challenging task due to the difficulty of identifying degradation/damage as the source of small, gradual changes in sensor data, as opposed to other environmental and loading effects. This paper offers a new method of applying statistical modelling and machine learning to enhance the interpretation of fibre optic sensing data, and, therefore, improve deterioration monitoring of railway infrastructure. Dynamic strain and temperature monitoring data between 2016 and 2019 from a fibre Bragg grating (FBG) network installed in a Victorian railway viaduct are first presented. The statistical shape analysis adopted in this study is modified to track changes in the shape of FBG signals directly linked to train speed and dynamic strain amplitudes. The method is complemented by a support vector machine, which is trained to identify different classes of trains. After distinguishing train types, dynamic strain was found to be clearly correlated to temperature, verifying previous findings. No correlation with train speed was observed. The integrated system is then able to compensate for changes in the structural performance due to variations in train loading and ambient temperature, and identify changes in dynamic deformation caused by degradation, in an order comparable to the signal noise (± 2 micro-strain). As a result, the new procedure is shown to be capable of detecting small magnitudes of local degradation well before this degradation manifests itself in typical global measures of response.
title: Natural patterns of plant epigenetic variation: Understanding the link between DNA methylation and environmental conditions
title: Natürliche Muster der epigenetischen Veränderung von Pflanzen: Den Zusammenhang zwischen DNA-Methylierung und Umweltbedingungen verstehen
titleType: AlternativeTitle
Creators: name: Diez-Rodriguez, Barbara
Publisher: name: Philipps-Universität Marburg
Year: 2023
Subjects: Biotic stress
epigenetische Vererbung
Bioinformatik
Plant adaptation
DNA-Methylierung
abiotischer Stress
Life sciences
Biowissenschaften, Biologie
biotischer Stress
Pflanzenanpassung
phänotypische Plastizität
Lombardei-Pappel
epigenetic inheritance
phenotypic plasticity
Epigenetik
DNA methylation
EpiD
Pflanzenökologie
Lombardy poplar
EpiDiverse
abiotic stress

description: In the last couple of decades, extreme weather events have been increasing, exceeding plants’ tolerance thresholds, and driving mass mortalities in many tree species. Furthermore, many studies suggest that due to their longevity, trees are not able to adapt rapidly enough to keep pace with global climate change. Understanding how trees respond to such weather events and other environmental conditions (such as biotic stress) has thus become crucial for conservation policies and forest management programs. To cope with unpredictable environmental conditions, plants have evolved the ability to alter their physiology, morphology, or development or, in other words, the ability to produce different phenotypes from one genotype. This ability is called phenotypic plasticity, and it plays a major role in plant adaptation. Three factors have been suggested to increase phenotypic variability and thus potentially the resilience of tree populations: intraspecific genetic variability, (micro-)environmental variation, and epigenetic variation. Indeed, a growing body of literature suggests that epigenetic variation might contribute to local adaptation of natural plant populations. Epigenetic mechanisms, such as DNA methylation, can in fact quickly alter phenotypes in response to environmental changes. Variation in DNA methylation can be under genetic control, arise stochastically, or be induced by environmental conditions. Furthermore, phenotypic changes induced by epigenetic variation can be inherited across several generations (especially across clonal generations), suggesting that variation in DNA methylation might contribute to heritable phenotypic variation and, eventually, to adaptation. Although considerable progress has been made in recent years, the link between epigenetic variation and phenotypic variation remains poorly understood.
title: ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð¿ÑÐµÑÑÑÐµÐ¼Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð², Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÑ Ð² ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Determination of the compressibility characteristics of powders used in thermolements
Creators: name: ÐÐ°Ð»Ð¾ÑÐµÐ½Ð¾Ðº, ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ñ Ð¾Ð»Ð¾Ð´Ð½Ð¾Ðµ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð³Ð¾ÑÑÑÐµÐµ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¿ÑÐµÑÑÑÐ¾ÑÐ¼Ð°
Ð¶ÐµÐ»ÐµÐ·Ð¾
ÐºÐ¾Ð±Ð°Ð»ÑÑ
Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ðµ
Ð¾ÑÐ½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð²ÑÑÐ¾ÑÐ°
cold pressing
hot pressing
pressform
iron
cobalt
pressure
relative height

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹ Ð¸Ð· Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð², Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÑ Ð² ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ°Ñ Ð¿ÑÐ¸ Ð³Ð¾ÑÑÑÐµÐ¼ Ð¸ ÑÐ¾Ð»Ð¾Ð´Ð½Ð¾Ð¼ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ð¸.
ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ:
1. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¸Ð·Ð´ÐµÐ»Ð¸Ð¹ Ð¸Ð· ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð¾Ñ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ
2. ÐÑÐ±Ð¾Ñ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÑÐ¾Ð´Ñ Ð¸Ð· Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ.
ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸, ÑÑÐ¾ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑ Ð¿ÑÐ¸ Ð³Ð¾ÑÑÑÐµÐ¼ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ Ð²ÑÑÐµ ÑÐµÐ¼ Ð¿ÑÐ¸ ÑÐ¾Ð»Ð¾Ð´Ð½Ð¾Ð¼ ÑÐ¾Ð»ÑÐºÐ¾ Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð¢Ð-3Ñ Ð¸ ÐºÐ¾Ð±Ð°Ð»ÑÑÐ°, Ð¾ÑÑÐ°Ð»ÑÐ½ÑÐµ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸ Ð½Ðµ Ð¿Ð¾Ð»ÑÑÐ¸Ð»Ð¸ Ð²Ð¸Ð´Ð¸Ð¼ÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ¸Ð¹ Ð² Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÐ»Ðµ Ð³Ð¾ÑÑÑÐµÐ³Ð¾ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ñ. ÐÐ· ÑÑÐ¾Ð³Ð¾ Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ´ÐµÐ»Ð°ÑÑ Ð²ÑÐ²Ð¾Ð´, ÑÑÐ¾ ÑÐµÐ»ÐµÑÐ¾Ð¾Ð±ÑÐ°Ð·Ð½ÐµÐµ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ ÑÐ¾Ð»Ð¾Ð´Ð½Ð¾Ðµ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ðµ. Ð ÑÐ°ÑÑÐµÑ Ð±ÑÐ°Ð»Ð°ÑÑ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÑ Ð¿ÑÐ¸ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ð¸ 450 Ð¸ 600 ÐÐÐ° Ð¿ÑÐ¸ ÑÐ¾Ð»Ð¾Ð´Ð½Ð¾Ð¼ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¸ 450 ÐÐÐ° Ð¿ÑÐ¸ Ð³Ð¾ÑÑÑÐµÐ¼ Ð¿ÑÐµÑÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿ÑÐ¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ 400ËÐ¡ Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð²ÑÐ´ÐµÑÐ¶ÐºÐ¸ 3 Ð¼Ð¸Ð½ÑÑÑ.
description: The aim of this work is to determine the density of products made of powders used in thermoelements during hot and cold pressing.
Tasks that were solved during the research:
1. Determination of the dependence of the density of products made of various powders by the pressing.
2. The method of pressing based on the data.
The obtained results showed that the density of hot pressing is significantly higher than of cold pressing only for TÐ³-3p and cobalt powders. Ð¢he other powders did not show any visible differences in density after hot pressing. So we can conclude that it is more appropriate to use cold pressing. The density was calculated at a pressure of 450 and 600 MPa for cold pressing and 450 MPa for hot pressing at a temperature of 400ËC and exposure time of 3 minutes.
กิจการพลเรือนของทหารในยุคประชาธิปไตยแบบการเลือกตั้ง: พัฒนาการและความชอบธรรม
Creators: name: พวงทอง ภวัครพันธุ์
Publisher: name: คณะสังคมศาสตร์ มหาวิทยาลัยนเรศวร
Year: 2562
Subjects: กฎหมายความมั่นคงภายใน, การจัดตั้งมวลชน, การพัฒนาเพื่อความมั่นคง, กองอำนวย การรักษาความมั่นคงภายใน (กอ.รมน.), กิจการพลเรือนของทหาร, ทหารไทย, แนวรุกด้านการเมือง, ปฏิบัติการต่อต้านคอมมิวนิสต์

description: วารสารสังคมศาสตร์ มหาวิทยาลัยนเรศวร, 15, 1, 217
Sequential storage and release of microdroplets
Creators: name: Toprakcioglu, Zenon
name: Knowles, Tuomas P. J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/639/638
/639/166
article

description: Funder: RCUK | Biotechnology and Biological Sciences Research Council (BBSRC); doi: https://doi.org/10.13039/501100000268
description: Funder: Frances and Augustus Newman Foundation; doi: https://doi.org/10.13039/100007898
description: Funder: Wellcome Trust (Wellcome); doi: https://doi.org/10.13039/100004440
description: Funder: EC | EC Seventh Framework Programm | FP7 Ideas: European Research Council (FP7-IDEAS-ERC - Specific Programme: "Ideas" Implementing the Seventh Framework Programme of the European Community for Research, Technological Development and Demonstration Activities (2007 to 2013)); doi: https://doi.org/10.13039/100011199
description: Abstract: Droplet microfluidic methods have opened up the possibility of studying a plethora of phenomena ranging from biological to physical or chemical processes at ultra low volumes and high throughput. A key component of such approaches is the ability to trap droplets for observation, and many device architectures for achieving this objective have been developed. A challenge with such approaches is, however, recovering the droplets following their confinement for applications involving further analysis. Here, we present a device capable of generating, confining and releasing microdroplets in a sequential manner. Through a combination of experimental and computational simulations, we shed light on the key features required for successful droplet storage and retrieval. Moreover, we explore the effect of the flow rate of the continuous phase on droplet release, determining that a critical rate is needed to ensure complete droplet deformation through constrictions holding the droplets in place prior to release. Finally, we find that once released, droplets can be retrieved and collected off chip. The ability to generate, store and sequentially release droplets renders such a device particularly promising for future applications where reactions may not only be monitored on-chip, but droplets can also be retrieved for further analysis, facilitating new exploratory avenues in the fields of analytical chemistry and biology.
The Herschel-SPIRE submillimetre spectrum of Mars
Creators: name: Swinyard, B. M.
name: Hartogh, P.
name: Sidher, S.
name: Fulton, T.
name: Lellouch, E.
name: Jarchow, C.
name: Griffin, M. J.
name: Moreno, R.
name: Sagawa, H.
name: Portyankina, G.
name: Blecka, M.
name: Banaszkiewicz, M.
name: Bockelee-Morvan, D.
name: Crovisier, J.
name: Encrenaz, T.
name: Kueppers, M.
name: Lara, L.
name: Lis, D.
name: Medvedev, A.
name: Renge, M.
name: Szutowicz, S.
name: Vandenbussche, B.
name: Bensch, F.
name: Bergin, E.
name: Billebaud, F.
name: Biver, N.
name: Blake, G.
name: Blommaert, J.
name: de Val-Borro, M.
name: Cernicharo, J.
name: Cavalie, T.
name: Courtin, R.
name: Davis, G.
name: Decin, L.
name: Encrenaz, P.
name: de Graauw, T.
name: Jehin, E.
name: Kidger, M.
name: Leeks, S.
name: Orton, G.
name: Naylor, D.
name: Schieder, R.
name: Stam, D.
name: Thomas, N.
name: Verdugo, E.
name: Waelkens, C.
name: Walker, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We have obtained the first continuous disk averaged spectrum of Mars from 450 to 1550 Ghz using the Herschel-SPIRE Fourier Transform Spectrometer. The spectrum was obtained at a constant resolution of 1.4 GHz across the whole band. The flux from the planet is such that the instrument was operated in "bright source" mode to prevent saturation of the detectors. This was the first successful use of this mode and in this work we describe the method used for observing Mars together with a detailed discussion of the data reduction techniques required to calibrate the spectrum. We discuss the calibration accuracy obtained and describe the first comparison with surface and atmospheric models. In addition to a direct photometric measurement of the planet the spectrum contains the characteristic transitions of 12CO from J 5-4 to J 13-12 as well as numerous H2O transitions. Together these allow the comparison to global atmospheric models allowing the mean mixing ratios of water and 12CO to be investigated. We find that it is possible to match the observed depth of the absorption features in the spectrum with a fixed water mixing ratio of 1 x 10-4 and a 12CO mixing ratio of 9 x 10-4
description: Accepted for publication in Astronomy&Astrophysics, Herschel First Results special issue
Centralizers of Toeplitz operators with polynomial symbols
Creators: name: Tikaradze, Akaki
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this note we describe centralizers of Toeplitz operators with polynomial symbols on the Bergman space. As a consequence it is shown that if an element of the norm closed algebra generated by all Toeplitz operators commutes with a Toeplitz operator of a noncon- stant polynomial, then this element is a Toeplitz operator of a bounded holomorphic function.
description: 5 pages, all comments welcome
Association between a 50bp Ins/Del polymorphism at the promoter region of the superoxide dismutase-1 and age of onset of schizophrenia
Creators: name: Mirsadraee, Niloufar
name: Saadat, Mostafa
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2019

description: EXCLI Journal; 18:Doc204; ISSN 1611-2156