cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermonuclear reaction rate of 18O(p,γ)19F
Creators: name: Howard, C.
name: Buckner, M.Q.
name: Iliadis, C.
name: Cesaratto, J.M.
name: Daigle, S.
name: Champagne, A.E.
name: Clegg, T.B.
Publisher: name: American Physical Society
Year: 2012

description: For stars with 0.8 MâŠ™ ≤ M ≤ 8.0 MâŠ™, nucleosynthesis enters its final phase during the asymptotic giant branch (AGB) stage. During this evolutionary period, grain condensation occurs in the stellar atmosphere, and the star experiences significant mass loss. The production of presolar grains can often be attributed to this unique stellar environment. A subset of presolar oxide grains features dramatic 18O depletion that cannot be explained by the standard AGB star burning stages and dredge-up models. An extra mixing process, referred to as cool bottom processing (CBP), was proposed for low-mass AGB stars. The 18O depletion observed within certain stellar environments and within presolar grain samples may result from the 18O+p processes during CBP. We report here on a study of the 18O(p,γ)19F reaction at low energies. Based on our new results, we found that the resonance at ERlab=95 keV has a negligible affect on the reaction rate at the temperatures associated with CBP. We also determined that the direct capture S factor is almost a factor of 2 lower than the previously recommended value at low energies. An improved thermonuclear reaction rate for 18O(p,γ)19F is presented.
Elastic, electronic and magnetic properties of new oxide perovskite BaVO3: a first-principles study
Creators: name: Bannikov, V. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structural, elastic, magnetic properties, as well as electronic structure and chemical bonding picture of new oxide 3d1-perovskite BaVO3, recently synthesized, were systematically investigated involving the first-principles FLAPW-GGA calculations. The obtained results are discussed in comparison with available experimental data, as well as with those obtained before for isostructural and isoelectronic SrVO3 perovskite.
description: 14 pages, 2 tables, 3 figures
Framework for Simulating Crew Motivation Impact on Productivity—A Hybrid Modeling Approach
Creators: Kedir, Nebiyu S.
Raoufi, Mohammad
Robinson Fayek, Aminah
Publisher: name: University of Alberta Library
Year: 2022

Previous studies have identified motivation as one of the most important factors affecting the efficiency of labor utilization in construction processes. However, there is a lack of research on simulating the impact of motivation on labor productivity to track and devise productivity improvement strategies. Fuzzy system dynamics (FSD) has been used to model labor productivity, because it captures subjective uncertainties and the dynamism of construction systems. However, FSD fails to capture complexity arising from individual components (e.g., crew members) that lead to emerging behaviors in crew motivation modeling. The main contributions of this paper are: (1) proposing a framework for combining FSD and fuzzy agent-based modeling, leading to a more comprehensive method for studying the impact of crew motivation on productivity; and (2) facilitating identification of more effective productivity improvement strategies by allowing construction stakeholders to track the dynamic relationships between motivation and labor productivity.
Benchmarking Gaussian Basis Sets in Quantum-Chemical Calculations of Photoabsorption Spectra of Light Atomic Clusters
Creators: name: Mahamiya, Vikram
name: Bhattacharyya, Pritam
name: Shukla, Alok
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The choice of Gaussian basis functions for computing the ground-state properties of molecules, and clusters, employing wave-function-based electron-correlated approaches, is a well-studied subject. However, the same cannot be said when it comes to the excited-state properties of such systems, in general, and optical properties, in particular. The aim of the present study is to understand how the choice of basis functions affects the calculations of linear optical absorption in clusters, qualitatively, and quantitatively. For this purpose, we have calculated linear optical absorption spectra of several small charged and neutral clusters, namely, Li$_{2}$, Li$_{3}$, Li$_{4}$, B$_{2}^{+}$, B$_{3}^{+}$, Be$_{2}^{+}$, and Be$_{3}^{+}$, using a variety of Gaussian basis sets. The calculations were performed within the frozen-core approximation, and a rigorous account of electron correlation effects in the valence sector was taken by employing various levels of configuration interaction (CI) approach both for the ground and excited states. Our results on the peak locations in the absorption spectra of Li$_{3}$ and Li$_{4}$ are in very good agreement with the experiments. Our general recommendation is that for excited-state calculations, it is very important to utilize those basis sets which contain augmented functions. Relatively smaller aug-cc-pVDZ basis sets also yield high-quality results for photoabsorption spectra, and are recommended for such calculations if the computational resources are limited.
description: Main manuscript 36 pages, 5 figures (included); Supporting information 17 pages, 3 figures (included)
Identifying Multilevel Metrics for Construction Competency and Performance Measures
Creators: Gebretekle, Yisshak T.
Robinson Fayek, Aminah
Publisher: name: University of Alberta Library
Year: 2022

Construction competencies are combinations of skills, knowledge, technologies, other resources, and practices of a construction organization that contribute to increased effectiveness, competitiveness, profitability, and performance. Previous studies have developed mechanisms to identify and develop construction competencies that aid in performance measurement at project and organization levels, separately. In reality, construction organizations are project-based organizations with complex interactions between competencies influencing performance at different levels. The challenges associated with multilevel construction competency measures include identifying the interrelationship between competencies at different levels and relating multilevel competencies to multilevel performance measures. To address these challenges, this paper provides a review of the literature related to multilevel construction competency frameworks and performance measurement methods. Based on an analysis of the literature, a multilevel framework is developed and presented for construction competency and performance measures. Finally, a data collection approach is provided that will assist researchers and industry practitioners in evaluating construction competencies and performance.
Nilpotent Symmetries in Super-Group Field Cosmology
Creators: name: Upadhyay, Sudhaker
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the gauge invariance of the third quantized super-group field cosmology which is a model for multiverse. Further, we propose both the nfinitesimal (usual) as well as the finite superfield-dependent BRST symmetry transformations which leave the effective theory invariant. The effects of finite superfield-dependent BRST transformations on the path integral (so-called void functional in the case of third quantization) are implemented. Within the finite superfield-dependent BRST formulation, the finite superfield-dependent BRST transformations with specific parameter switch the void functional from one gauge to another. We establish this result for the most general gauge with the help of explicit calculations which holds for all possible sets of gauge choices at both the classical and the quantum levels.
description: 10 pages, Revtex, Accepted in Mod. Phys. Lett. A
Optimal cross-over designs for full interaction models
Creators: name: Bailey, R. A.
name: Druilhet, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We consider repeated measurement designs when a residual or carry-over effect may be present in at most one later period. Since assuming an additive model may be unrealistic for some applications and leads to biased estimation of treatment effects, we consider a model with interactions between carry-over and direct treatment effects. When the aim of the experiment is to study the effects of a treatment used alone, we obtain universally optimal approximate designs. We also propose some efficient designs with a reduced number of subjects.
description: Published in at http://dx.doi.org/10.1214/14-AOS1247 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The effect of the 14N(p, γ)15O reaction on the blue loops in intermediate-mass stars
Creators: name: El Eid, M.F.
name: Halabi, G.M.
name: Champagne, A.
Publisher: name: Institute of Physics Publishing
Year: 2012

description: We present stellar evolutionary sequences of stars in the mass range 5-12 M , having solar-like initial composition. The stellar models are obtained using updated input physics, including recent rates of thermonuclear reactions. We investigate the effects of a modification of the 14N(p, γ) 15O reaction rate, as suggested by recent evaluations, on the formation and extension of the blue loops encountered during the evolution of the stars in the above mass range. We find that a reduced 14N(p, γ)15O rate, as described in the text, has a striking impact on the physical conditions of burning and mixing during shell hydrogen burning when the blue loops are formed. In particular, we find that the efficiency of shell hydrogen burning is crucial for the formation of an extended blue loop. We show that a significantly reduced 14N(p, γ)15O rate affects severely the extension of the blue loops and the time spent by the star in the blue part of the Hertzsprung-Russell diagram in the mass range 5-7 M if the treatment of convection is based on the Schwarzschild criterion only. In this case, envelope overshooting helps to restore well-extended blue loops as supported by the observations of the Cepheid stars. If core overshooting is included during the core hydrogen and core helium burning phases, the loop formation and its properties depend on how this overshooting is treated for a given stellar mass range, as well as on its efficiency.
Additional file 13 of Sctensor detects many-to-many cell–cell interactions from single cell RNA-sequencing data
Creators: name: Tsuyuzaki, Koki
name: Ishii, Manabu
name: Nikaido, Itoshi
Publisher: name: figshare
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Additional file 13. Three L-R pairs in which each of the three methods excelled.
METABOLIC SYNDROME, OXIDATIVE STRESS AND LIPOPROTEINS: WHAT ARE THE BIOCHEMICAL EFFECTS OF WEIGHT LOSS?
Creators: name: PIURI, GABRIELE
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: Aim. To examine and compare the composition and the oxidisability of the hydrophobic core and amphipathic surface of lipoproteins in a group of adult males with metabolic syndrome before and after weight loss of at least 5% of their initial weight following a hypocaloric diet. Methods. The concentration of cholesterol, triglycerides, phospholipids, and proteins was studied to analyse the chemical composition of lipoproteins. Pyrenyl-cholesteryl ester and pyrenyl-phosphatidylcholine, incorporated into the hydrophobic core or amphipathic surface of LDL and HDL, respectively, were used for measuring 2,2'-azobis-2-methyl- propanimidamide-dihydrochloride-induced peroxidation kinetics in these regions. Results. In comparison with the initial time, there was an improvement of HDL oxidisability with an increase of lag-time and a reduction of the velocity of propagation of peroxidation in the core of HDL. Parallel but opposite, there was a worsening in the susceptibility to peroxidation of LDL with a reduction in lag-time and an increased propagation rate of peroxidation in the LDL core. After weight loss, LDL showed a higher content of triglycerides whereas HDL showed reduced triglycerides content. In both LDL and HDL, the increase in the percentage of triglycerides was connected with an increased propagation rate of peroxidation kinetic and with a reduction of the lag-time in the hydrophobic core. Conclusions. A more detailed knowledge of the chemical composition and oxidisability of both the surface and core of lipoproteins could be a useful additional means for better understanding the mechanisms that link the changes in lipoproteins metabolism to the risk of cardiovascular disease in patients with metabolic syndrome after weight loss.
Thermodynamics in $f(T)$ Gravity and Corrected Entropies
Creators: name: Sharif, M.
name: Rani, Shamaila
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper is devoted to study the generalized second law of thermodynamics in $f(T)$ gravity. We use quantum corrections such as power-law and logarithmic corrected entropies to the horizon entropy along with Gibbs' equation in the thermal equilibrium state. We derive $f(T)$ model by taking into account a power-law scale factor through the first modified Friedmann equation which obeys the condition for a realistic model. Two types of horizons, i.e., Hubble and event horizons are used to check the validity of the generalized second law of thermodynamics with corrected entropies. We conclude that this law holds with a specific range of entropy parameter on both horizons in the case of power-law corrected entropy, while it violates for all values of entropy parameter on both horizons for logarithmic corrected entropy.
description: 16 pages, 5 figures
Theoretical evaluation of the reaction rates for Al26(n,p)26Mg and Al26(n,α)23Na
Creators: name: Champagne, A.E.
name: Iliadis, C.
name: Oginni, B.M.
Publisher: name: American Physical Society
Year: 2011

description: The reactions that destroy Al26 in massive stars have significance in a number of astrophysical contexts. We evaluate the reaction rates of Al26(n,p)26Mg and Al26(n,α)23Na using cross sections obtained from the codes empire and talys. These have been compared to the published rates obtained from the non-smoker code and to some experimental data. We show that the results obtained from empire and talys are comparable to those from non-smoker. We also show how the theoretical results vary with respect to changes in the input parameters. Finally, we present recommended rates for these reactions using the available experimental data and our new theoretical results.
A special exact spherically symmetric solution in f(T) gravity theories
Creators: name: Nashed, G. G. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A non-diagonal spherically symmetric tetrad field, involving four unknown functions of radial coordinate $r$, is applied to the equations of motion of f(T) gravity theory. A special exact vacuum solution with one constant of integration is obtained. The scalar torsion related to this special solution vanishes. To understand the physical meaning of the constant of integration we calculate the energy associated with this solution and show how it is related to the gravitational mass of the system.
description: 14 pages
Reconstruction of the Sunspot Number Source Database and the 1947 Zurich Discontinuity
Creators: name: Clette, Frédéric
name: Lefèvre, Laure
name: Bechet, Sabrina
name: Ramelli, Renzo
name: Cagnotti, Marco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The recalibration of the sunspot number series, the primary long-term record of the solar cycle, requires the recovery of the entire collection of raw sunspot counts collected by the Zurich Observatory for the production of this index between 1849 and 1980. Here, we report about the major progresses accomplished recently in the construction of this global digital sunspot number database, and we derive global statistics of all the individual observers and professional observatories who provided sunspot data over more than 130 years. First, we can announce the full recovery of long-lost source-data tables covering the last 34 years between 1945 and 1979, and we describe the unique information available in those tables. We then also retrace the evolution of the core observing team in Zurich and of the auxiliary stations. In 1947, we find a major disruption in the composition of both the Zurich team and the international network of auxiliary stations. This sharp transition is unique in the history of the Zurich Observatory and coincides with the main scale-jump found in the original Zurich sunspot number series, the so-called "Waldmeier" jump. This adds key historical evidence explaining why methodological changes introduced progressively in the early $20^{th}$ century could play a role precisely at that time. We conclude on the remaining steps needed to fully complete this new sunspot data resource.
description: 22 pages, 9 figures
Direct measurments of (p,γ) cross sections at astrophysical energies using radioactive beams and the Daresbury Recoil Separator
Creators: name: Nesaraja, C.D.
name: Fitzgerald, R.P.
name: Pain, S.D.
name: Peters, W.A.
name: Hatarik, R.
name: Greife, U.
name: Blackmon, J.C.
name: Matei, C.
name: Chae, K.Y.
name: Pittman, S.T.
name: Shrine Jr., J.F.
name: Kozub, R.L.
name: Moazen, B.H.
name: Bardayan, D.W.
name: Champagne, A.E.
name: Smith, M.S.
name: Chipps, K.A.
Publisher: name: Sissa Medialab Srl
Year: 2010

description: There are a number of astrophysical environments in which the path of nucleosynthesis proceeds through proton-rich nuclei. Radioactive nuclei have traditionally not been available as beams, and thus proton-capture reactions on these nuclei could only be studied indirectly. At the Holifield Radioactive Ion Beam Facility (HRIBF), some of the first direct measurements of (p,γ) cross sections on radioactive beams have been made. The Daresbury Recoil Separator (DRS) has been used to separate the recoils of interest from the unreacted primary beam and identify them in an isobutane-filled ionization counter. Data from 17F(p,γ)18Ne and 7Be(p,γ)8B measurements are presented.
Spatially resolved resonant tunneling on single atoms in silicon
Creators: name: Voisin, B.
name: Salfi, J.
name: Bocquel, J.
name: Rahman, R.
name: Rogge, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The ability to control single dopants in solid-state devices has opened the way towards reliable quantum computation schemes. In this perspective it is essential to understand the impact of interfaces and electric fields, inherent to address coherent electronic manipulation, on the dopants atomic scale properties. This requires both fine energetic and spatial resolution of the energy spectrum and wave-function, respectively. Here we present an experiment fulfilling both conditions: we perform transport on single donors in silicon close to a vacuum interface using a scanning tunneling microscope (STM) in the single electron tunneling regime. The spatial degrees of freedom of the STM tip provide a versatility allowing a unique understanding of electrostatics. We obtain the absolute energy scale from the thermal broadening of the resonant peaks, allowing to deduce the charging energies of the donors. Finally we use a rate equations model to derive the current in presence of an excited state, highlighting the benefits of the highly tunable vacuum tunnel rates which should be exploited in further experiments. This work provides a general framework to investigate dopant-based systems at the atomic scale.
description: 15 pages, 4 figures
D7.3 - Community Portal
Creators: name: FUNDINGBOX ACCELERATOR SP. Z, O.O.
Publisher: name: Zenodo
Year: 2023
Subjects: Networking
Marketing Strategy
PLATOON Community

description: This document summarises the composition, objectives and action plan for PLATOON Community Portal. It also resumes the information (trends, news, events, technology news, funding opportunities), inspiration (exclusive content curated by experts and interlocutors: live chats, Q&As…), support (experts will advise, but members can also create synergies and build partnerships) and connections (by networking with people interested in the digitisation of the energy sector domain) given by the community portal to the project.
Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a planetary companion
Creators: name: Hernán-Obispo, M.
name: Tuomi, M.
name: Gálvez-Ortiz, M. C.
name: Golovin, A.
name: Barnes, J. R.
name: Jones, H. R. A.
name: Kane, S. R.
name: Pinfield, D.
name: Jenkins, J. S.
name: Petit, P.
name: Anglada-Escudé, G.
name: Marsden, S. C.
name: Catalán, S.
name: Jeffers, S. V.
name: de Castro, E.
name: Cornide, M.
name: Garcés, A.
name: Jones, M. I.
name: Gorlova, N.
name: Andreev, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper presents the simultaneous Bayesian analysis of the radial velocity and activity indices for the K5Ve active star BD+20 1790, that was proposed to host a close-in massive planet by Hernán-Obispo et al. (2010). The Bayesian analysis supports the hypothesis of a planetary companion. We present a new orbital solution after removing the two main contributions to the stellar jitter, one that varies with the photometric period and another that varies with the synodic period of the star+planet system. We use a new method to determine these jitter components, considering them as a second and third signals in the system. A discussion on possible magnetic star-planet-interaction is included, based on the Bayesian analysis of the activity indices. We propose two possible sources for flare events of this star: one related to the geometry of the system and the relative movement of the star+planet, and a second one purely stochastic source that is related to the evolution of stellar active regions. Also, we observe for the first time the magnetic field of the star, from spectropolarimetric data.
description: 17 pages, 18 figures, accepted for publication at A\&A (!2 January 2015)
Supplemental Figures Legends.docx
Creators: name: Frisbee, Jefferson
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310910
subject: Animal physiology - systems

description: Previous studies have suggested that the loss of microvessel density in the peripheral circulation with evolving metabolic disease severity represents a significant contributor to impaired skeletal muscle oxygenation and fatigue-resistance. Based on this and our recent work, we hypothesized that cerebral microvascular rarefaction was initiated from the increased pro-oxidant and pro-inflammatory environment with metabolic disease and is predictive of the severity of the emergence of depressive symptoms in obese Zucker rats (OZR). In male OZR, cerebrovascular rarefaction followed the emergence of elevated oxidant and inflammatory environments characterized by increased vascular production of thromboxane A2 (TxA2). The subsequent emergence of depressive symptoms in OZR was associated with the timing and severity of the rarefaction. Chronic intervention with antioxidant (TEMPOL) or anti-inflammation (pentoxifylline) therapy blunted the severity of rarefaction and depressive symptoms, although the effectiveness was limited. Blockade of TxA2 production (dazmegrel) or action (SQ-29548) resulted in a stronger therapeutic effect, suggesting that vascular production and action represent a significant contributor to rarefaction and the emergence of depressive symptoms with chronic metabolic disease (although other pathways clearly contribute as well). A de novo biosimulation of cerebrovascular oxygenation in the face of progressive rarefaction demonstrates the increased probability of generating hypoxic regions within the microvascular networks, which could contribute to impaired neuronal metabolism and the emergence of depressive symptoms. The results of the present study also implicate the potential importance of aggressive prodromic intervention in reducing the severity of chronic complications arising from metabolic disease.
The DIANA underground accelerator facility project at DUSEL laboratory
Creators: name: Couder, M.
name: Vetter, P.A.
name: Winklehner, D.
name: Waldron, W.L.
name: Iliadis, C.
name: Saba, J.S.
name: Leitner, D.
name: Collon, P.
name: Lemut, A.
name: Wiescher, M.
name: Stech, E.
name: Greife, U.
name: Leitner, M.
name: Famiano, M.
name: Gray, F.
name: Champagne, A.E.
name: Hodgkinson, A.
Publisher: name: Sissa Medialab Srl
Year: 2010

description: The DIANA project (Dakota Ion Accelerators for Nuclear Astrophysics) is a collaboration between the University of Notre Dame, Colorado School of Mines, Regis University, University of North Carolina, Western Michigan University, and Lawrence Berkeley National Laboratory, to build a next generation nuclear astrophysics accelerator facility deep underground. The DIANA accelerator facility is being designed to achieve large laboratory reaction rates by delivering high ion beam currents (up to 100 mA) to a high density (up to 1018 atoms/cm2), super-sonic jet-gas target. The accelerator developments of the DIANA facility are presented here.
Measurement of Ion Motional Heating Rates over a Range of Trap Frequencies and Temperatures
Creators: name: Bruzewicz, C. D.
name: Sage, J. M.
name: Chiaverini, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present measurements of the motional heating rate of a trapped ion at different trap frequencies and temperatures between $\sim$0.6 and 1.5 MHz and $\sim$4 and 295 K. Additionally, we examine the possible effect of adsorbed surface contaminants with boiling points below $\sim$105$^{\circ}$C by measuring the ion heating rate before and after locally baking our ion trap chip under ultrahigh vacuum conditions. We compare the heating rates presented here to those calculated from available electric-field noise models. We can tightly constrain a subset of these models based on their expected frequency and temperature scaling interdependence. Discrepancies between the measured results and predicted values point to the need for refinement of theoretical noise models in order to more fully understand the mechanisms behind motional trapped-ion heating.
description: 6 pages, 3 figures, 2 tables
EVALUATION OF THE INHIBITORY ACTIVITY OF VARIOUS UNREPORTED CMP-NEU5AC DONOR CONGENERS ON GM3 SYNTHASE
Creators: name: GREGORIO, ANTONIO
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: A class of sialosides (down reported 3a-e, 4a-c, 5a-c and 5e), designed to inhibit the biological transfer of sialic acid 1 to the terminal portion of glycoconjugates, mediated by the enzymes sialyltransferases, was synthesized and their inhibitory activities was tested on a ?-2,3 sialyltransferase, from Pasteurella multocida, and on GM3 synthase, present both as a cellular homogenate and in a cell line of HEK293 (Human Embryonic Kidney). The synthesized compounds 3a-e are congeners of the natural sialyl donor CMP-Neu5Ac 2 and incorporate some structural properties of the compound 3a, the only known inhibitor of GM3 synthase enzyme reported in a short note.1 Moreover, we synthesized also the lactones 4a-c and the peracetylated derivatives 5a-c and 5e in order to improve the cell permeability of their parent hydroxyl acids. The GM3 synthase activity was evaluated detecting the formation of the labeled GM3 in process using lactosyl-ceramide labelled ([3-3H(sphingosine)]LacCer] as acceptor, or labeled sphingosine ([3-3H] SPH) as unsialylated ganglioside precursor.3 Last procedure allowed to evaluate also the complete pattern of gangliosides formed in the cell in the presence or absence of inhibitors. All synthesized compounds were tested on GM3 synthase of HEK cellular homogenate. The more active acidic compounds were also tested on intact cell lines, improving their lipofilicity, by methyl esterification and after peracetylation. The free compounds 3b-c, 3e and 4c show an inhibitory activity always higher than 3a. Similarly the peracetylated methylester 5b-c and 5-e are more activity than 5a in intact cell lines. All compounds show an inhibitory activity higher on the cell homogenates than that on HEK cells. The lactones 4a-c were not active in cell lines probably since they do not cross the cell membrane as the peracetylated methyl ester 5a-e that are actives. The ?-sialoside 5e resulted the most active. This is a very interesting result since evidences that the geometry at the anomeric centre of the glycosyl donor is not an exential requisite. However, all results together extend the knowledge on inhibitors of GM3 synthase and provide new structural information for the development of other novel STs inhibitors.
title: The Effects on System Security and Provisioning Process Flows caused by a dynamic trivial File Transfer Protocol Service in large Service Provider Networks
Creators: name: Pleschiutschnig, Heimo
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 004 Datenverarbeitung; Informatik

description: The purpose of this thesis was to create a working prototype of a dynamic TFTP service for DOCSIS-compliant cable modem configuration files that can serve as a drop-in replacement for existing TFTP services while considerably improving the service‟s security and reducing the administrative effort required to create such configuration files. The goal was also to ensure that service does not impact legitimate clients and requires only minimal changes to the provisioning service flows and DHCP services. The paper first explains the components involved and examines an existing reference network and its inherent protocol-related weaknesses. The third chapter then focuses on creating a service blueprint for the dynamic TFTP service using the requirements derived from the examination, with the goal of remedying the detected weaknesses, as well as any weakness dictated by the reference network and those mandated by the ISO 27000. This chapter also defines the KPI and the scientific hypothesis. The next chapter deals with the design of the prototype (e.g. which language to use, how the prototype‟s code should work internally). Chapters five and six explain the code development, the test environment and the gathering of performance data to show how well the prototype performs when compared with the legacy solution. After gathering all the data, it was necessary to compare this to the previously defined requirements and KPI, as well as to the security clauses of the ISO 27000, which is done in chapter seven. The final chapter sums up the results from the previous chapters and presents an outlook for possible new functionality and how the service will most likely enter production service. The conclusion of this thesis is that it is indeed possible to create a dynamic TFTP service that fulfills all the requirements and reaches the necessary KPI values.
Additional file 1 of Tillandsia landbeckii phyllosphere and laimosphere as refugia for bacterial life in a hyperarid desert environment
Creators: name: Hakobyan, Anna
name: Velte, Stefanie
name: Sickel, Wiebke
name: Quandt, Dietmar
name: Stoll, Alexandra
name: Knief, Claudia
Publisher: name: figshare
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1: Supplementray figures: Fig. S1. Principal component plot of surface soil samples showing the variation in bacterial community composition between samples from different study sites. DNA extraction negative control (EC) and PCR negative control (EC) are included. They both remained slightly positive after applying a decontamination algorithm and cluster with surface soil samples from some, though not all sampling sites. Fig. S2. Principal component plots showing the variation in bacterial community composition in phyllosphere and laimosphere samples from living and dead plant material, collected at Salar Grande and Cerro Pajonal. The tables below the figures summarize PERMANOVA results. Fig. S3. Heat trees showing the bacterial community structure up to genus level in the complete datasets of the phyllosphere and laimosphere. The color and size of nodes and edges are correlated with the sum of the mean abundance and number of ASVs, respectively. The most abundant genera (> 10% abundance in individual samples) are highlighted. The abundance value of 0.001 was set as a threshold to remove low-abundance taxa and reduce the complexity of the plots. Fig. S4. Bacterial diversity in the phyllosphere and laimosphere of T. landbeckii. Shown are Shannon’s index (upper row), evenness (middle row) and Faith’s PD (lower row). Significant differences in dependence on study site were evaluated based on Kruskal-Wallis tests. Please note the different y-axis scales for phyllosphere and laimosphere. Fig. S5. Bacterial diversity in the phyllosphere in dependence on the season for the samples from four different study sites. Shown are Shannon’s index, evenness, and Faith’s PD. Significant differences in dependence on the season were evaluated based on Kruskal-Wallis tests and are reported above the respective panel. Pairwise comparisons within each study site were done using Wilcoxon signed rank exact test for the paired samples and the Wilcoxon sum exact test for non-paired samples (e.g. Cerro Pajonal 2016 vs. 2017). Significance values: *p < 0.05, ***p < 0.001.
Resonance strength in Ne22(p,γ)Na23 from depth profiling in aluminum
Creators: name: Longland, R.
name: Newton, J.R.
name: Iliadis, C.
name: Fitzgerald, R.
name: Cesaratto, J.M.
name: Daigle, S.
name: Champagne, A.E.
Publisher: name: American Physical Society
Year: 2010

description: A novel method for extracting absolute resonance strengths has been investigated. By implanting Ne22 ions into a thick aluminum backing and simultaneously measuring the Ne22+p and Al27+p reactions, the strength of the Erlab=479 keV resonance in Ne22(p,γ)Na23 was determined to be ωγ=0.524(51) eV. This result has significantly reduced uncertainties compared to earlier work. Our results are important for the absolute normalizations of resonance strengths in the Ne22(p,γ)Na23 hydrogen-burning reaction and in the Ne22+α s-process neutron-source reactions.
Ultrashort-period MS eclipsing systems. New observations and light curve solutions of six NSVS binaries
Creators: name: Dimitrov, Dinko
name: Kjurkchieva, Diana
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We carried out photometric and low-resolution spectral observations of six eclipsing ultrashort-period binaries with MS components. The light curve solutions of the Rozhen observations show that all targets are overcontact systems. We found well-defined empirical relation "period -- semi-major axis" for the short-period binaries and used it for estimation of the global parameters of the targets. Our results revealed that NSVS 925605 is quite interesting target: (a) it is one of a few contact binaries with M components; (b) it exhibits high activity (emission in H$α$ line, X-ray emission, large cool spots, non-Planck energy distribution); (c) its components differ in temperature by 700 K. All appearances of high magnetic activity and huge fillout factor (0.7) of NSVS 925605 might be assumed as a precursor of the predicted merging of close magnetic binaries. Another unusual binary is NSVS 2700153 which reveals considerable long-term variability.
description: 9 pages, 11 figures, 9 tables, MNRAS (accepted)
PDE for the joint law of the pair of a continuous diffusion and its running maximum
Creators: name: Coutin, Laure
name: Pontier, Monique
Publisher: name: arXiv
Year: 2023
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Let X be a d-dimensional diffusion and M the running supremum of its first component. In this paper, we show that for any t > 0, the density (with respect to the d + 1-dimensional Lebesgue measure) of the pair (Mt, Xt) is a weak solution of a Fokker-Planck partial differential equation on the closed set {(m, x) $\in$ R d+1, m $\ge$ x 1}, using an integral expansion of this density.
title: Einsatz von IKT-Services zur Effizienzsteigerung im Recruiting
Creators: name: Kickmaier, Bianca
Publisher: name: FH CAMPUS 02 (CAMPUS 02 Fachhochschule der Wirtschaft)
Year: 2023
Subjects: subject: 658 Allgemeines Management

description: Diese wissenschaftliche Arbeit untersucht die Effizienzsteigerung in der Personalbeschaffung mittels dem Einsatz von IKT-Services. Zu Beginn wurde eine Literaturrecherche zu den Themen Personalbeschaffung, Candidate Experience und Entwicklung von IKT-Services durchgeführt, auf deren Grundlage die Customer Journey Maps aus Sicht des Bewerbers und aus Sicht des Recruiters erstellt wurden. Diese erstellten Customer Journey Maps wurden durch die Erkenntnisse aus dem durchgeführten Experteninterviews mit dem Unternehmen PIDAS erweitert. Das Ziel dieser wissenschaftlichen Arbeit ist die Gestaltung einer effizienten Candidate Journey und die Analyse kritischer Erfolgsfaktoren aus der Sicht der Bewerber und aus der Sicht der Recruiter. Aus diesem Grund wurden die erstellten CJMs mittels Personas durchlaufen, um somit die Erfolgsfaktoren zu ermitteln. Aus diesen Erfolgsfaktoren wurden anschließend Ideen für IKT-Services generiert, welche folgend mittels einer Nutzwertanalyse bewertet wurden. Für die vier Ideen mit der höchsten Gesamtbewertung wurde im Anschluss ein Service Konzept entworfen. Das Ergebnis dieser wissenschaftlichen Arbeit zeigt, dass IKT-Services zur Effizienzsteigerung in der Personalbeschaffung beitragen, sowie auch die IKT-Services, welche im Zuge dieser Masterarbeit konzipiert wurden.
description: This scientific work investigates improvements in recruitment efficiency obtained via the use of ICT services. At the beginning, a literature search was conducted on the topics recruitment, the candidate experience and development of ICT services. Based on these findings, customer journey maps were created from the perspectives of the candidate and the recruiter. These customer journey maps were improved using the findings of the expert interview, which was conducted with the recruiter from the company PIDAS. The aim of this scientific work was to design an efficient candidate journey and to analyze critical success factors from the perspectives of both the applicants and the recruiters. For this reason, the customer journey maps were explored by means of personas in order to determine the success factors. Based on the success factors identified, ideas were generated and then evaluated using a cost-benefit analysis. Drawing on the four ideas with the highest overall rating, a service concept was developed. The result of this scientific work shows that ICT services can help to increase recruitment efficiency.
Determination of the E1 component of the low-energy C12(α,γ)O16 cross section
Creators: name: Janssens, R.V.F.
name: Kahl, D.
name: Segel, R.E.
name: Pardo, R.C.
name: Hecht, A.
name: Patel, N.
name: Moore, E.F.
name: Ahmad, I.
name: Notani, M.
name: Schiffer, J.P.
name: Paul, M.
name: Rehm, K.E.
name: Champagne, A.
name: Savard, G.
name: Wuosmaa, A.H.
name: Jiang, C.L.
name: Sinha, S.
name: Henderson, D.J.
name: Jisonna, L.
name: Tang, X.D.
name: Brune, C.R.
name: Greene, J.P.
Publisher: name: American Physical Society
Year: 2010

description: A measurement of the β-delayed α decay of N16 using a set of twin ionization chambers is described. Sources were made by implantation, using a N16 beam produced via the In-Flight Technique. The energies and emission angles of the C12 and α particles were measured in coincidence and very clean α spectra, down to energies of 450 keV, were obtained. The structure of the spectra from this experiment is in good agreement with results from previous measurements. An analysis of our data with the same input parameters as used in earlier studies gives SE1(300)=86±22 keVb for the E1 component of the S-factor. This value is in excellent agreement with results obtained from various direct and indirect measurements. In addition, the influence of new measurements including the phase shift data from Tischhauser on the value of SE1(300) is discussed.
Oscillatory reconnection as a plasma diagnostic in the solar corona
Creators: name: Karampelas, Konstantinos
name: McLaughlin, James A.
name: Botha, Gert J. J.
name: Régnier, Stéphane
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Oscillatory reconnection is a relaxation process in magnetised plasma, with an inherent periodicity that is exclusively dependent on the properties of the background plasma. This study focuses on the seismological prospects of oscillatory reconnection in the solar corona. We perform three sets of parameter studies (for characteristic coronal values of the background magnetic field, density and temperature) using the PLUTO code to solve the fully compressive, resistive MHD equations for a 2D magnetic X-point. From each parameter study, we derive the period of the oscillatory reconnection. We find that this period is inversely proportional to the characteristic strength of the background magnetic field and the square root of the initial plasma temperature, while following a square root dependency upon the equilibrium plasma density. These results reveal an inverse proportionality between the magnitude of the Alfvén speed and the period, as well as the background sound speed and the period. Furthermore, we note that the addition of anisotropic thermal conduction only leads to a small increase in the mean value for the period. Finally, we establish an empirical formula that gives the value for the period in relation to the background magnetic field, density and temperature. This gives us a quantified relation for oscillatory reconnection, to be used as a plasma diagnostic in the solar corona, opening up the possibility of using oscillatory reconnection for coronal seismology.
description: 16 pages, 10 figures, accepted for publication in ApJ
title: False Cape
Creators: name: Jackson, Katherine
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2000

description: Set at False Cape on the coast of Virginia in the year 1912, this story is about a shipwreck, but it is also a story about choices--between love and honor and betrayal--that face a woman and two men who serve in the U.S. Life-saving Service: Rachel Grey, a widow from Princess Anne County who marries and moves to the desolate beach at False Cape; Robert Grey, keeper of the False Cape Station; and Michael Midgett, a surfman under Grey's command. When the three-masted Italian schooner Francesca da Rimini fetches up on the shoals of False Cape, the relationships of the central characters are jeopardized by the choices they have to make.
Anharmonic Decay of Coherent Optical Phonons in Antimony
Creators: name: Hase, Muneaki
name: Ushida, Kiminori
name: Kitajima, Masahiro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Anharmonic decay of coherent optical phonons in semimetal Sb has been investigated by using a femtosecond pump-probe technique. The coherent $A_{1g}$ mode is observed in time domain in a wide temperature range of 7 - 290 K. The decay rate (the inverse of the dephasing time) systematically increases as the lattice temperature increases, which is well explained by anharmonic phonon-phonon coupling, causing decay of the optical phonon into two acoustic phonon modes. The frequency of the $A_{1g}$ mode decreases with the temperature, which is interpreted to the results of both thermal expansion and anharmonic phonon-phonon coupling. The temperature dependence of the amplitude of the coherent $A_{1g}$ mode exhibits a decrease with the lattice temperature, which is well reproduced by considering the peaked intensity of spontaneous Raman scattering assuming a Lorentzian line shape with the linewidth controlled by the anharmonic decay, and this model can be applicable to other metallic system, like Zn.
description: 5 pages, 4 figures, accepted in Journal of the Physical Society of Japan
Optimizing the generation of polarization squeezed light in nonlinear optical fibers driven by femtosecond pulses
Creators: name: Andrianov, A. V.
name: Kalinin, N. A.
name: Sorokin, A. A.
name: Anashkina, E. A.
name: Sanchez-Soto, L. L.
name: Corney, J. F.
name: Leuchs, G.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Bright squeezed light can be generated in optical fibers utilizing the Kerr effect for ultrashort laser pulses. However, pulse propagation in a fiber is subject to nonconservative effects that deteriorate the squeezing. Here, we analyze two-mode polarization squeezing, which is SU(2)-invariant, robust against technical perturbations, and can be generated in a polarization-maintaining fiber. We perform a rigorous numerical optimization of the process and the pulse parameters using our advanced model of quantum pulse evolution in the fiber that includes various nonconservative effects and real fiber data. Numerical results are consistent with experimental results.
description: 9 pages, 3 figures
Computational modelling of thermochemical processes during thermochemical ablation in biological tissue
Creators: name: LAMN, MAK
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 400399
subject: Biomedical engineering not elsewhere classified
classificationCode: 401204
subject: Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics)

description: Thermochemical ablation (TCA) is a minimally invasive cancer treatment that utilises exothermic heat when chemical reagents are intratumorally injected to raise tissue temperature to tumoricidal temperature to induce irreversible thermal damage, hence destroying cancerous tissue. Limitations of existing TCA studies hinder the understanding of treatment efficacy and safety. These limitations include the inability to visualise reagent flow in biological tissue, map tissue temperature, and quantify thermal damage. TCA carries inherent risk of uncontrolled reagent flow, causing chemical burns to nearby normal tissue, systemic toxicity, and inadequate tissue ablation. This research project aims to investigate species transport, acid-base neutralisation, tissue temperature and thermal damage in TCA using computational modelling to establish a safer and more effective protocol.