cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Boron Triangular Kagome Lattice with Half-Metallic Ferromagnetism
Creators: name: Kim, Sunghyun
name: Han, W. H.
name: Lee, In-Ho
name: Chang, K. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on the first-principles evolutionary materials design, we report a stable boron Kagome lattice composed of triangles in triangles on a two-dimensional sheet. The Kagome lattice can be synthesized on a silver substrate, with selecting Mg atoms as guest atoms. While the isolated Kagome lattice is slightly twisted without strain, it turns into an ideal triangular Kagome lattice under tensile strain. In the triangular Kagome lattice, we find the exotic electronic properties, such as topologically non-trivial flat band near the Fermi energy and half-metallic ferromagnetism, and predict the quantum anomalous Hall effect in the presence of spin-orbit coupling.
Combatting Climate Disinformation: Comparing the Effectiveness of Correction Placement and Type
Creators: name: Christner, Clara
name: Merz, Pascal
name: Barkela, Berend
name: Jungkunst, Hermann
name: von Sikorski, Christian
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: In this study, we investigated whether corrections can combat climate disinformation. Using a preregistered quota-based online experiment in Germany (N = 1401), we tested how the effectiveness of disinformation correction in reducing climate misperceptions was influenced by correction placement (prebunking or debunking) and correction type (focused on facts, logic, or the combination of both). We investigated how populist radical-right (PRR) attitudes moderate the effect of disinformation correction and whether correction alleviates the negative effects of disinformation on efficacy beliefs to mitigate climate change (EBMCC) through reduced misperceptions. All debunking conditions and the logic-focused prebunking condition significantly reduced climate misperceptions. Prebunking was only effective under the logic-focused correction condition. We found no moderating effect of PRR attitudes on climate misperceptions, suggesting that corrections similarly benefitted all participants. In addition, a significant indirect effect of corrections was observed on EBMCC via climate misperceptions.
Long-range interactions of hydrogen atoms in excited states. II. Hyperfine-resolved 2S-2S system
Creators: name: Jentschura, U. D.
name: Debierre, V.
name: Adhikari, C. M.
name: Matveev, A.
name: Kolachevsky, N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The interaction of two excited hydrogen atoms in metastable states constitutes a theoretically interesting problem because of the quasi-degenerate 2P_{1/2} levels which are removed from the 2S states only by the Lamb shift. The total Hamiltonian of the system is composed of the van der Waals Hamiltonian, the Lamb shift and the hyperfine effects. The van der Waals shift becomes commensurate with the 2S-2P_{3/2} fine-structure splitting only for close approach (R < 100 a_0, where a_0 is the Bohr radius) and one may thus restrict the discussion to the levels with n=2 and J=1/2 to good approximation. Because each S or P state splits into an F=1 triplet and an F=0 hyperfine singlet (eight states for each atom), the Hamiltonian matrix {\em a priori} is of dimension 64. A careful analysis of symmetries the problem allows one to reduce the dimensionality of the most involved irreducible submatrix to 12. We determine the Hamiltonian matrices and the leading-order van der Waals shifts for states which are degenerate under the action of the unperturbed Hamiltonian (Lamb shift plus hyperfine structure). The leading first- and second-order van der Waals shifts lead to interaction energies proportional to 1/R^3 and 1/R^6 and are evaluated within the hyperfine manifolds. When both atoms are metastable 2S states, we find an interaction energy of order E_h chi (a_0/R)^6, where E_h and L are the Hartree and Lamb shift energies, respectively, and chi = E_h/L ~ 6.22 \times 10^6 is their ratio.
description: 22 pages; RevTeX; accepted for publication in Phys. Rev. A
Clinical outcomes in cancer patients with COVID-19 in Sweden
Creators: name: Bondeson, Lisa
name: Thulin, Anna
name: Ny, Lars
name: Levin, Max
name: Svensson, Johanna
name: Lindh, Magnus
name: Zhao, Zhiyuan
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: The results of studies on the relationship between cancer and COVID-19 have been conflicting and therefore further studies are needed. We aimed to examine the incidence of COVID-19 among patients at one of the largest oncology departments in Sweden, and to evaluate and identify risk factors for poor outcomes, hospital care and death, associated with COVID-19 among cancer patients. This retrospective study included cancer patients at a single center who tested positive for SARS-CoV-2 by PCR either in hospital, primary health care center or commercial laboratory between 1 March and 14 August 2020. Clinical and demographic data were collected from the medical records. Logistic regression analysis was used to identify variables that associated the primary outcomes of need for hospital care and death within 30 days of positive test. Of 10,774 patients from the Department of Oncology at Sahlgrenska University Hospital, 135 tested positive for SARS-CoV-2 (1.3%). Twenty-eight patients were excluded from further the data collection since they did not meet the inclusion criteria. Altogether, 107 cancer patients were included and the case fatality rate (CFR) was 12% (13) within 30 days of confirmed SARS-CoV-2 infection by PCR. Increasing years of age (OR 1.10; CI 95% 1.03–1.18), palliative treatment intent (OR 15.7; CI 95% 1.8–135.8), and transition to end-of-life care (OR 52.0; CI 95% 3.7–735.6) were associated with increased odds of death within 30 days. Male sex was associated with needing hospital care (OR 3.7; CI 95% 1.50–9.1). As in the general population, male sex was found to be at greater risk of needing hospital care for COVID-19, with terminal cancer disease, and older age increasing the odds of fatality. Compared to the general population, slightly more cancer patients had COVID-19. The CFR was within the lower range of others reported in cancer patients.
On discrete homology of a free pro-$p$-group
Creators: name: Ivanov, Sergei O.
name: Mikhailov, Roman
Publisher: name: arXiv
Year: 2017
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: For a prime $p$, let $\hat F_p$ be a finitely generated free pro-$p$-group of rank $\geq 2$. We show that the second discrete homology group $H_2(\hat F_p,\mathbb Z/p)$ is an uncountable $\mathbb Z/p$-vector space. This answers a problem of A.K. Bousfield.
Pro-Environmental Nationalism is Still Nationalism: How Political Identity and Prior Attitudes Affect Nationalist Framing Effects on Support for Climate Action
Creators: name: Bogado, Natalia
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Based on research on framing effects and biased cognition, this paper investigated the limitations of framing pro-environmental messages in nationalist terms that emphasize the importance of upholding national pride, security, and leadership in global climate mitigation – a growing tendency among pro-environmental governments. Evidence from two survey experiments in the United States (N = 1075 and N = 205, respectively) supported the hypothesis that political identities and prior attitudes drove the effects of pro-environmental nationalist frame exposure on climate attitudes by influencing which considerations remained salient in people’s minds following exposure. Study 1 showed that Republicans (versus Democrats) and nationalist participants assigned more salience to nationalist considerations following exposure, resulting in higher ethnoculturalism and, subsequently, lower climate mitigation support and higher climate scepticism. Study 2 largely replicated these results. Thus, this paper highlighted the limitations of framing pro-environmental information in nationalist terms to increase support for climate action.
Life cycle and techno-economic assessment of Power-to-Gas processes in Germany
Creators: name: Gerloff, Niklas
Publisher: name: Universität Rostock
Year: 2023
Subjects: subject: 333.7 Natural resources, energy and environment
subject: 540 Chemistry & allied sciences
subject: 620 Engineering & allied operations

description: Aufgrund des voranschreitenden Klimawandels bieten sich Power-to-Gas-Anlagen als langfristige Speicherlösung von erneuerbaren Energien an, da das Erdgasnetz als langfristiger Speicher bereits vorhanden ist, sodass Investitionskosten reduziert und große Mengen an Energie gespeichert werden können. Aufgrund des Potenzials von Power-to-Gas als Speicherlösung für die Energiewende zielt diese Dissertation darauf ab, herauszufinden, welche potenziellen Umweltauswirkungen und Gestehungskosten bei der Erzeugung von Wasserstoff und Synthetic Natural Gas in Power-to-Gas-Prozessen entstehen.
Traces of non-equilibrium dynamics in relativistic heavy-ion collisions
Creators: name: Xu, Yingru
name: Moreau, Pierre
name: Song, Taesoo
name: Nahrgang, Marlene
name: Bass, Steffen A.
name: Bratkovskaya, Elena
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The impact of non-equilibrium effects on the dynamics of heavy-ion collisions is investigated by comparing a non-equilibrium transport approach, the Parton-Hadron-String-Dynamics (PHSD), to a 2D+1 viscous hydrodynamical model, which is based on the assumption of local equilibrium and conservation laws. Starting the hydrodynamical model from the same non-equilibrium initial condition as in the PHSD, using an equivalent lQCD Equation-of-State (EoS), the same transport coefficients, i.e. shear viscosity $η$ and the bulk viscosity $ζ$ in the hydrodynamical model, we compare the time evolution of the system in terms of energy density, Fourier transformed energy density, spatial and momentum eccentricities and ellipticity in order to quantify the traces of non-equilibrium phenomena. In addition, we also investigate the role of initial pre-equilibrium flow on the hydrodynamical evolution and demonstrate its importance for final state observables. We find that due to non-equilibrium effects, the event-by-event transport calculations show large fluctuations in the collective properties, while ensemble averaged observables are close to the hydrodynamical results.
description: 19 pages, 16 figures
Low replicability of testing stress-dominance hypothesis using trait convergence/divergence pattern
Creators: name: Botta-Dukát, Zoltán
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)

description: Data and R scipts for analysis used in the paper submitted to the Journal of Vegetation Science.Stress-dominance hypothesis was tested by plotting trait convergence/divergence against productivity in four inland sand dune regions (Ásotthalom, Deliblato, Kunadacs, and Orgovány).Files:
*.plots.RData -- plot-by-species matrix of plant cover (*=site name)
*.traits.RData -- species-by-trait matrix including source of traits (*=site name)
*.ndvi.RData --NDVI (proxy of productivity) in each plot (*=site name)
ES.RData -- calculated effect sizes, input for HGAM fitting
HGAM.r -- script for fitting hierarchical GAMs
median_distance.r -- script for calculating weighted median distance (a robust alternative of Rao's Q) and its departure from the random expectation
ordination.r -- script for creating NMDS figure
wMedian.r -- script for calculating community weighted median (an alternative of CWM)
ВОЯГА ЕТМАГАНЛАРГА ИЖТИМОИЙ ҲУҚУҚИЙ ЁРДАМ КЎРСАТИШ МАРКАЗЛАРИ ФАОЛИЯТИНИ ТАКОМИЛЛАШТИРИШГА МАСАЛАЛАРИ
Creators: name: Абдуллаев, Файзулла
name: Давронов, Абдурасул
Publisher: name: Zenodo
Year: 2024

description: Ижтимоий реабилитация ҳамда ижтимоий мослаштириш тушунчаси ҳақида сўз юритишдан аввал “реабилитация” сўзининг маъноси ва ушбу тушунча қайси соҳаларда қўлланилиши ҳақида хабардор бўлиш мақсадга мувофиқдир. “Реабилитация” сўзи лотинча “rehabilitatio” сўзидан олинган бўлиб, “тиклаш” деган маънони англатади.
Quantum-memory-assisted multi-photon generation for efficient quantum information processing
Creators: name: Kaneda, Fumihiro
name: Xu, Feihu
name: Chapman, Joseph
name: Kwiat, Paul G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the last two decades, many quantum optics experiments have demonstrated small-scale quantum information processing applications with several photons. Beyond such proof-of-principle demonstrations, efficient preparation of large, but definite, numbers of photons is of great importance for further scaling up and speeding up photonic quantum information processing. Typical single-photon generation techniques based on nonlinear parametric processes face challenges of probabilistic generation. Here we demonstrate efficient synchronization of photons from multiple nonlinear parametric heralded single-photon sources (HSPSs), using quantum memories (QMs). Our low-loss optical memories greatly enhance (~30x) the generation rate of coincidence photons from two independent HSPSs, while maintaining high indistinguishability (95.7%) of the synchronized photons. As an application, we perform the first demonstration of HSPS-based measurement-device-independent quantum key distribution (MDI-QKD). The synchronized HSPSs demonstrated here will pave the way toward efficient quantum communication and larger scale optical quantum computing.
Helioseismic Holography of Simulated Sunspots: dependence of the travel time on magnetic field strength and Wilson depression
Creators: name: Felipe, T.
name: Braun, D. C.
name: Birch, A. C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Improving methods for determining the subsurface structure of sunspots from their seismic signature requires a better understanding of the interaction of waves with magnetic field concentrations. We aim to quantify the impact of changes in the internal structure of sunspots on local helioseismic signals. We have numerically simulated the propagation of a stochastic wave field through sunspot models with different properties, accounting for changes in the Wilson depression between 250 and 550 km and in the photospheric umbral magnetic field between 1500 and 3500 G. The results show that travel-time shifts at frequencies above approximately 3.50 mHz (depending on the phase-speed filter) are insensitive to the magnetic field strength. The travel time of these waves is determined exclusively by the Wilson depression and sound-speed perturbation. The travel time of waves with lower frequencies is affected by the direct effect of the magnetic field, although photospheric field strengths below 1500 G do not leave a significant trace on the travel-time measurements. These results could potentially be used to develop simplified travel-time inversion methods.
description: Accepted for publication in A&A
A non-glitch speed-up event in the Crab Pulsar
Creators: name: Vivekanand, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context: The rotation history of the Crab Pulsar is well described by (1) a rotation frequency $ν$ and a slowdown model that is specified by its first two time derivatives $\dot ν$ and $\ddot ν$, known as the secular slowdown model, (2) occasional (once in $\approx 2$ years) significant and abrupt increases in the magnitude of $ν$ and $\dot ν$ (occurring on timescales of minutes), known as glitches, and (3) much slower increases and decreases in $ν$ and $\dot ν$ (occurring over months and years) that are an order of magnitude smaller, known as timing noise. Aims: This work reports a speed-up event in the Crab Pulsar that occurred around $2015$ February that is distinct from glitches and timing noise. Methods: Monthly $ν$s and $\dot ν$s of the Crab Pulsar, obtained at radio frequencies and published by Jodrell Bank Observatory (JBO), are used to demonstrate the speed-up event. Monthly arrival times of the Crab Pulsar's pulse, also published by JBO, combined with X-ray data from the RXTE, SWIFT, and NUSTAR observatories are used to verify the result. Results: The speed-up event is caused by a persistent increase in $\dot ν$, which results in a monotonic increase in $ν$. Over the last $\approx 550$ days, $ν$ has increased monotonically by an amount that is $\approx 10$ times larger than the timing noise level. Conclusions: This is a unique event in the Crab Pulsar. This is probably due to a small increase in the Crab Pulsar's internal temperature. In its absence, the next large glitch in the Crab Pulsar is expected to occur around $2019$ March. However, this event could have an important bearing on its occurrence.
description: Accepted for publication as a Letter in Astronomy and Astrophysics
Characters, $L^2$-Betti numbers and an equivariant approximation theorem
Creators: name: Kionke, Steffen
Publisher: name: arXiv
Year: 2017
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 55N10, 20J06, 57S30, 11F75

description: Let $G$ be a group with a finite subgroup $H$. We define the $L^2$-multiplicity of an irreducible representation of $H$ in the $L^2$-homology of a proper $G$-CW-complex. These invariants generalize the $L^2$-Betti numbers. Our main results are approximation theorems for $L^2$-multiplicities which extend the approximation theorems for $L^2$-Betti numbers of Lück, Farber and Elek-Szabó respectively. The main ingredient is the theory of characters of infinite groups and a method to induce characters from finite subgroups. We discuss applications to the cohomology of (arithmetic) groups.
description: 33 pages, minor changes
Second-line palliative chemotherapy, survival, and prognostic factors in patients with advanced pancreatic cancer
Creators: name: Ekström, Anders
name: Brun, Eva
name: Eberhard, Jakob
name: Segerlantz, Mikael
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Pancreatic cancer is a highly lethal disease with a close association between incidence and mortality. First-line (FL) palliative chemotherapy prolongs survival and alleviates cancer-related symptoms. However, the survival benefit of second-line (SL) treatment is uncertain, as studies fail to consistently show prolonged survival for any given SL treatment, and in the absence of prognostic factors patients will receive a futile treatment. The aim of this study was to examine prognostic factors and survival in patients with pancreatic cancer, with special reference to SL therapy. This retrospective study included all patients with histopathologically verified pancreatic adenocarcinoma who received palliative chemotherapy at Skåne University Hospital and died between 1 Feb 2015 and 31 Dec 2017. During the study period, a total of 170 patients with pancreatic cancer died after receiving palliative chemotherapy. Of these, 72 had received SL treatment after progression on FL treatment. Median overall survival (OS) from the start of SL treatment was 5.0 months (95% CI: 4.0–6.1). Median OS was 2.9 months for patients with performance status 2 at start of SL treatment compared to 5.3 months for patients with performance status 0–1 (p = .03), and 3.5 months (95% CI: 3.0–5.4) in patients with hypoalbuminemia (<36 g/L) at the start of SL therapy compared to 8.0 months (95% CI: 5.3–11.1) for patients with normal albumin levels (p = .009). Weight loss during FL therapy, a doubling of CA 19-9 after FL therapy, and length of progression-free survival during FL treatment were not associated with survival following SL therapy. Poor performance status and hypoalbuminemia are negative prognostic factors for survival on SL palliative treatment in patients with advanced pancreatic cancer. Possible gain in survival should be carefully considered before initiating SL chemotherapy.
Path stability of the solution of stochastic differential equation driven by time-changed Lévy noises
Creators: name: Nane, Erkan
name: Ni, Yinan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65C30

description: This paper studies path stabilities of the solution to stochastic differential equations (SDE) driven by time-changed Lévy noise. The conditions for the solution of time-changed SDE to be path stable and exponentially path stable are given. Moreover, we reveal the important role of the time drift in determining the path stability properties of the solution. Related examples are provided.
description: 25 pages, 7 figures, submitted for publication
Modelling the chemistry of star-forming filaments - II. Testing filament characteristics with synthetic observations
Creators: name: Seifried, D.
name: Sánchez-Monge, Á.
name: Suri, S.
name: Walch, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present synthetic continuum and $^{13}$CO and C$^{18}$O line emission observations of dense and cold filaments. The filaments are dynamically evolved using 3D-MHD simulations that include one of the largest on-the-fly chemical networks used to date, which models the detailed evolution of H$_2$ and CO. We investigate the reliability of observable properties, in particular filament mass and width, under different simulation conditions like magnetic field orientation and cosmic ray ionisation rate. We find that filament widths of $\sim$0.1 pc can be probed with both line and continuum emission observations with a high accuracy (deviations $\leq$ 20%). However, the width of more narrow filaments can be significantly overestimated by up to a factor of a few. Masses obtained via the dust emission are accurate within a few percent whereas the masses inferred from molecular line emission observations deviate from the actual mass by up to a factor of 10 and show large differences for different $J$ transitions. The inaccurate estimate of filament masses and widths of narrow filaments using molecular line observations can be attributed to (i) the non-isothermal state of the filaments, (ii) optical depth effects, and (iii) the subthermally excited state of CO, while inclination effects and opacity correction only influence the obtained masses and widths by less than 50%. Both, mass and width estimates, can be improved by using two isotopes to correct for the optical depth. Since gas and dust temperature generally differ (by up to 25 K), the filaments appear more gravitationally unstable if the (too low) dust temperature is used for the stability analysis.
description: 18 pages, 14 figures, accepted by MNRAS, updated to final version
Theory of Error
Creators: name: Sadruddin, Munir Moosa
Publisher: name: Zenodo
Year: 2023
Subjects: Theory of error
mistakes
resilience

description: According to Munir, “Error signifies effort and vulnerability, exposing individuals to growth and learning opportunities while cautioning against the pursuit of error-free perfection leading to egotism. The pursuit of being error-free can be seen as aspiring to a state of perfection, akin to an angelic ideal. Constantly pursuing perfection can make people disregard alternative perspectives and approaches. By embracing errors and considering them as chances for intellectual growth, individuals can explore new ideas and innovative solutions, which fosters humility and resilience”.
Charmed mesons with a symmetry-preserving contact interaction
Creators: name: Serna, Fernando E.
name: El-Bennich, Bruno
name: Krein, Gastão
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A symmetry-preserving treatment of a vector-vector contact interaction is used to study charmed heavy-light mesons. The contact interaction is a representation of nonperturbative kernels used in Dyson-Schwinger and Bethe-Salpeter equations of QCD. The Dyson-Schwinger equation is solved for the $u,\,d,\,s$ and $c$ quark propagators and the bound-state Bethe-Salpeter amplitudes respecting spacetime-translation invariance and the Ward-Green-Takahashi identities associated with global symmetries of QCD are obtained to calculate masses and electroweak decay constants of the pseudoscalar $π,\,K$, $D$ and $D_s$ and vector $ρ$, $K^*$, $D^*$, and $D^*_s$ mesons. The predictions of the model are in good agreement with available experimental and lattice QCD data.
Effect of patient-reported outcomes as a dialogue-based tool in cancer consultations on patient self-management and health-related quality of life: a clinical, controlled trial
Creators: name: Skovlund, Pernille Christiansen
name: Thaysen, Henriette Vind
name: Schmidt, Henrik
name: Alsner, Jan
name: Hjollund, Niels Henrik
name: Lomborg, Kirsten
name: Nielsen, Berit Kjærside
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: With increased survival among patients with metastatic melanoma and limited time with health care providers, patients are expected to assume a more active role in managing their treatment and care. Activated patients have the knowledge, skills, and confidence to make effective solutions to self-manage health. The use of patient-reported outcomes (PRO) could have the potential to enhance patient activation. However, PRO-based interventions that facilitate an activation in patients with metastatic melanoma are lacking and warranted. In this prospective non-randomized controlled, clinical trial, patients with metastatic melanoma were assigned to either the intervention (systematic feedback and discussion of PRO during consultation) given at one hospital or the control group (treatment as usual) if they received treatment from two other hospitals in Denmark. The primary outcome was the patient activation measure (PAM), which reflects self-management. Secondary outcomes were health-related quality of life (HRQoL), self-efficacy, and Patient–Physician interaction. Outcomes were measured at baseline, and after 3, 6, and 12 months. The analysis of the effect from baseline to 12 months employed mixed-effects modeling. Between 2017 and 2019, patients were allocated to either the intervention group (n = 137) or the control group (n = 142). We found no significant difference in the course of patient activation between the two groups over time. The course of HRQoL was statistically significantly improved by the intervention compared to the control group. Especially, females in the intervention group performed better than males. The other secondary outcomes were not improved by the intervention. The intervention did not improve knowledge, skills, and confidence for self-management for patients with metastatic melanoma. Neither did it improve coping self-efficacy nor perceived efficacy in Patient–Physician interaction. However, the results suggest that the intervention can have a significant impact on HRQoL and in particular social and emotional well-being among the females.
Informe transecto, ecología.pdf
Creators: name: Noemi, Ruth
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 300201
subject: Agricultural hydrology
classificationCode: 300203
subject: Agricultural land planning
classificationCode: 300202
subject: Agricultural land management
classificationCode: 300206
subject: Agricultural spatial analysis and modelling

description: El presente informe se centra en realizar el transecto de una zona determinada del distrito de Chiguata-Arequipa. El transecto; es un método de muestreo que consiste en trazar un área, que puede ser en dos puntos fijos o de manera radial; esto con el fin de descubrir la zona de vida de ese determinado lugar; esto para poder estudiar y analizar la composición, estructura y diversidad de vida que existe en la zona de estudio, esto puede ser vegetación, animales de la zona, el tipo de suelo, pH del agua, entre otros.
Iterated stochastic processes : simulation and relationship with high order partial differential equations
Creators: name: Thieullen, Michèle
name: Vigot, Alexis
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we consider the composition of two independent processes : one process corresponds to position and the other one to time. Such processes will be called iterated processes. We first propose an algorithm based on the Euler scheme to simulate the trajectories of the corresponding iterated processes on a fixed time interval. This algorithm is natural and can be implemented easily. We show that it converges almost surely, uniformly in time, with a rate of convergence of order 1/4 and propose an estimation of the error. We then extend the well known Feynman- Kac formula which gives a probabilistic representation of partial differential equations (PDEs), to its higher order version using iterated processes. In particular we consider general position processes which are not necessarily Markovian or are indexed by the real line but real valued. We also weaken some assumptions from previous works. We show that intertwining diffusions are related to transformations of high order PDEs. Combining our numerical scheme with the Feynman-Kac formula, we simulate functionals of the trajectories and solutions to fourth order PDEs that are naturally associated to a general class of iterated processes.
THE PROPERTIES OF COLLAGEN AND ITS ROLE IN SKIN CARE
Creators: name: Latipova, F.
name: Khasanova, G.
Publisher: name: Zenodo
Year: 2024

description: This article explores the world of collagen, its structure, types, role in maintaining skin elasticity and firmness, factors that contribute to its decline, the effects of collagen on skin aging and common signs of depletion, and the benefits of collagen in skin care products. we discuss natural ways to stimulate collagen synthesis for optimal health.
Reduction of dimension as a consequence of norm-resolvent convergence and applications
Creators: name: Krejcirik, David
name: Raymond, Nicolas
name: Royer, Julien
name: Siegl, Petr
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper is devoted to dimensional reductions via the norm resolvent convergence. We derive explicit bounds on the resolvent difference as well as spectral asymptotics. The efficiency of our abstract tool is demonstrated by its application on seemingly different PDE problems from various areas of mathematical physics; all are analysed in a unified manner now, known results are recovered and new ones established.
description: 15 pages
Association of body composition with toxicity to first-line chemotherapy and three-year survival in women with ovarian adenocarcinoma
Creators: name: de Aguiar Bruno, Karine
name: da Silva, Mario Jorge Sobreira
name: Chaves, Gabriela Villaça
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer

description: This study aimed to evaluate the association of body composition with toxicity to first-line chemotherapy and three-year survival in women with ovarian adenocarcinoma. We enrolled, in a retrospective cohort, 239 women treated with carboplatin and paclitaxel between 2008 and 2017. Pretreatment computed tomography scans were used to quantify skeletal muscle index (SMI), skeletal muscle radiodensity (SMD), and subcutaneous adipose tissue index (SATI). Chemotherapy doses, related toxicities, potential drug-drug interactions (DDI), and clinical variables were collected from medical records. Outcomes were the number of adverse events ≥ grade 3 toxicity, toxicity-induced modification of treatment (TIMT), and three-year survival. Average age was 56.3 years and 35.1% had myopenia. Almost 33% had TIMT and 51.3% presented any grade 3 toxicity. Potential severe DDI occurred in 48.1% of the patients and 65.1% died three years after the first treatment. The SMD and SATI below the median were independent predictors for the number of adverse events ≥ grade 3 and TIMT. Also, SMD was the only body composition parameter able to predict reduced three-year survival. The SMI was not associated with any of the outcomes. Fewer amounts of SATI and low SMD were associated with the occurrence of toxicity to chemotherapy, and the low SMD increased the risk of death in the three years after oncologic treatment.
Off-site trimer superfluid on a one-dimensional optical lattice
Creators: name: Er-Nv, Fan
name: Tony, Scott C
name: Wan-Zhou, Zhang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The Bose-Hubbard model with an effective off-site three-body tunneling, characterized by jumps towards one another, between one atom on a site and a pair atoms on the neighborhood site, is studied systematically on a one-dimensional lattice, by using the density matrix renormalization group method. The off-site trimer superfluid, condensing at momentum $k=0$, emerges in the softcore Bose-Hubbard model but it disappears in the hardcore Bose-Hubbard model. Our results numerically verify that the off-site trimer superfluid phase derived in the momentum space from [Phys. Rev. A {\bf 81}, 011601(R) (2010)] is stable in the thermodynamic limit. The off-site trimer superfluid phase, the partially off-site trimer superfluid phase and the Mott insulator phase are found, as well as interesting phase transitions, such as the continuous or first-order phase transition from the trimer superfluid phase to the Mott insulator phase. Our results are helpful in realizing this novel off-site trimer superfluid phase by cold atom experiments.
description: 7 pages, 7 figures, Submitted to Chinese Physics B
Transient-absorption phases with strong probe and pump pulses
Creators: name: Becquet, Vadim
name: Cavaletto, Stefano M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The quantum dynamics of a system of Rb atoms, modeled by a V-type three-level system interacting with intense probe and pump pulses, are studied. The time-delay-dependent transient-absorption spectrum of an intense probe pulse is thus predicted, when this is preceded or followed by a strong pump pulse. Numerical results are interpreted in terms of an analytical model, which allows us to quantify the oscillating features of the resulting transient-absorption spectra in terms of the atomic populations and phases generated by the intense pulses. Strong-field-induced phases and their influence on the resulting transient-absorption spectra are thereby investigated for different values of pump and probe intensities and frequencies, focusing on the atomic properties which are encoded in the absorption line shapes for positive and negative time delays.
description: 15 pages, 12 figures
Predicting reaction coordinates in energy landscapes with diffusion anisotropy
Creators: name: Tiwary, Pratyush
name: Berne, B. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We consider a range of model potentials with metastable states undergoing molecular dynamics coupled to a thermal bath in the high friction regime, and consider how the optimal reaction coordinate depends on the diffusion anisotropy. For this we use our recently proposed method 'Spectral gap optimization of order parameters (SGOOP)' (Tiwary and Berne, Proc. Natl. Acad. Sci. 113 2839 2016). We show how available information about dynamical observables in addition to static information can be incorporated into SGOOP, which can then be used to accurately determine the 'best' reaction coordinate for arbitrary anisotropies. We compare our results with transmission coefficient calculations and published benchmarks where applicable or available respectively.
Optical Spectroscopy of Candidates for Quasars at 3
Creators: name: Khorunzhev, G. A.
name: Burenin, R. A.
name: Sazonov, S. Yu.
name: Amvrosov, A. L.
name: Eselevich, M. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences
subject: J.2.3
subject: 85A04, 85A35

description: We present the results of optical spectroscopy for 19 quasar candidates at photometric redshifts $\zphot \gtrsim 3$, \Nobs \ of which enter into the Khorunzhev et al.~(2016) catalog (K16). This is a catalog of quasar candidates and known type 1 quasars selected among the X-ray sources of the \textit{3XMM-DR4}catalog of the XMM-Newton serendipitous survey. We have performed spectroscopy for a quasi-random sample of new candidates at the 1.6-m \Azt \ telescope of the Sayan Solar Observatory and the 6-m BTA telescope of the Special Astrophysical Observatory. The spectra at \Azt \ were taken with the new low- and medium-resolution ADAM spectrograph that was produced and installed on the telescope in 2015. Fourteen of the \Nobs \ candidates actually have turned out to be quasars; 10 of them are at spectroscopic redshifts z > 3. The high purity of the sample of new candidates suggests that the purity of the entire K16 catalog of quasars is probably 70--80\%. One of the most distant ($\zspec=5.08$) optically bright ($i^\prime\lesssim 21$) quasars ever detected in X-ray surveys has been discovered.
description: russian text in Pisma v astronomicheskii Zhurnal (2017) 43: 159
From molecules to Young Stellar Clusters: the star formation cycle across the M33 disk
Creators: name: Corbelli, Edvige
name: Brain, Jonathan
name: Bandiera, Rino
name: Brouillet, Nathalie
name: Combes, Françoise
name: Druard, Clement
name: Gratier, Pierre
name: Mata, Jimmy
name: Schuster, Karl
name: Xilouris, Manolis
name: Palla, Francesco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To shed light on the time evolution of local star formation episodes in M33, we study the association between 566 Giant Molecular Clouds (GMCs), identified through the CO (J=2-1) IRAM-all-disk survey, and 630 Young Stellar Cluster Candidates (YSCCs), selected via Spitzer-24~$μ$m emission. The spatial correlation between YSCCs and GMCs is extremely strong, with a typical separation of 17~pc, less than half the CO(2--1) beamsize, illustrating the remarkable physical link between the two populations. GMCs and YSCCs follow the HI filaments, except in the outermost regions where the survey finds fewer GMCs than YSCCs, likely due to undetected, low CO-luminosity clouds. The GMCs have masses between 2$\times 10^4$ and 2$\times 10^6$ M$_\odot$ and are classified according to different cloud evolutionary stages: inactive clouds are 32$\%$ of the total, classified clouds with embedded and exposed star formation are 16$\%$ and 52$\%$ of the total respectively. Across the regular southern spiral arm, inactive clouds are preferentially located in the inner part of the arm, possibly suggesting a triggering of star formation as the cloud crosses the arm. Some YSCCs are embedded star-forming sites while the majority have GALEX-UV and H$α$ counterparts with estimated cluster masses and ages. The distribution of the non-embedded YSCC ages peaks around 5~Myrs with only a few being as old as 8--10~Myrs. These age estimates together with the number of GMCs in the various evolutionary stages lead us to conclude that 14~Myrs is a typical lifetime of a GMC in M33, prior to cloud dispersal. The inactive and embedded phases are short, lasting about 4 and 2~Myrs respectively. This underlines that embedded YSCCs rapidly break out from the clouds and become partially visible in H$α$ or UV long before cloud dispersal.
description: 18 pages, 17 figures, Accepted for publication in A&A
Do everything to consolidate the dictatorship of the proletariat – study from young people’s policemen Wu Gensheng and Dong Keli (一切为了巩固无产阶级专政—象青年民并警吴根生，董克礼学习)
Creators: name: Zhang Yihao 张亦浩
name: Yu Xiaofu 于晓夫
name: Guan Qijun 管齐骏
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: People's Police
Models For Emulation

description: An educational poster presents model for children to emulate. Price: 16 fen
Impact of Stoichiometry of Yb2Ti2O7 on its Physical Properties
Creators: name: Arpino, K. E.
name: Trump, B. A.
name: Scheie, A. O.
name: McQueen, T. M.
name: Koohpayeh, S. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A series of Yb2Ti2O7 doped samples demonstrates the effects of off-stoichiometry on Yb2Ti2O7's structure, properties, and magnetic ground state via x-ray diffraction, specific heat, and magnetization measurements. A stoichiometric single crystal of Yb2Ti2O7 grown by the traveling solvent floating zone technique (solvent = 30 wt% rutile TiO2 and 70 wt% Yb2Ti2O7) is characterized and evaluated in light of this series. Our data shows that upon positive x doping, the cubic lattice parameter a increases and the Curie-Weiss temperature decreases. Heat capacity measurements of stoichiometric Yb2Ti2O7 samples exhibit a sharp, first-order peak at T = 268(4) mK that is suppressed in magnitude and temperature in samples doped off ideal stoichiometry. The full entropy recovered per Yb ion is 5.7 J/K ~ Rln2. Our work establishes the effects of doping on Yb2Ti2O7's physical properties, which provides further evidence indicating that previous crystals grown by the traditional floating zone method are doped off ideal stoichiometry. Additionally, we present how to grow high-quality colorless single crystals of Yb2Ti2O7 by the traveling solvent floating zone growth method.
description: 11 pages, 6 figures, 1 table (including Appendix - 2 pages, 1 figure, 1 table)
Intratumoral expression of CD38 in patients with post-transplant lymphoproliferative disorder
Creators: name: Hybel, Trine Engelbrecht
name: Vase, Maja Ølholm
name: Maksten, Eva Futtrup
name: Enemark, Marie Beck
name: Lauridsen, Kristina Lystlund
name: Hamilton-Dutoit, Stephen
name: Andersen, Claus
name: Møller, Michael Boe
name: Sørensen, Søren Schwartz
name: Jespersen, Bente
name: Kampmann, Jan
name: d’Amore, Francesco
name: Ludvigsen, Maja
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology
subject: 60506 Virology

description: Intratumoral expression of CD38 in patients with post-transplant lymphoproliferative disorder
Modeling and Simulation of the Dynamics of the Quick Return Mechanism: A Bond Graph Approach
Creators: name: Vaz, Anand
name: K, Thommen G
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper applies the multibond graph approach for rigid multibody systems to model the dynamics of general spatial mechanisms. The commonly used quick return mechanism which comprises of revolute as well as prismatic joints has been chosen as a representative example to demonstrate the application of this technique and its resulting advantages. In this work, the links of the quick return mechanism are modeled as rigid bodies. The rigid links are then coupled at the joints based on the nature of constraint. This alternative method of formulation of system dynamics, using Bond Graphs, offers a rich set of features that include pictorial representation of the dynamics of translation and rotation for each link of the mechanism in the inertial frame, representation and handling of constraints at the joints, depiction of causality, obtaining dynamic reaction forces and moments at various locations in the mechanism and so on. Yet another advantage of this approach is that the coding for simulation can be carried out directly from the Bond Graph in an algorithmic manner, without deriving system equations. In this work, the program code for simulation is written in MATLAB. The vector and tensor operations are conveniently represented in MATLAB, resulting in a compact and optimized code. The simulation results are plotted and discussed in detail.
description: Document prepared for National Conference on Industrial Problems on Machines and Mechanisms (2010), 8 pages, 19 Figures
Electrically controllable magnetism in twisted bilayer graphene
Creators: name: Gonzalez-Arraga, Luis A.
name: Lado, J. L.
name: Guinea, Francisco
name: San-Jose, Pablo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Twisted graphene bilayers develop highly localised states around AA-stacked regions for small twist angles. We show that interaction effects may induce either an antiferromagnetic (AF) and a ferromagnetic (F) polarization of said regions, depending on the electrical bias between layers. Remarkably, F-polarised AA regions under bias develop spiral magnetic ordering, with a relative $120^\circ$ misalignment between neighbouring regions due to a frustrated antiferromagnetic exchange. This remarkable spiral magnetism emerges naturally without the need of spin-orbit coupling, and competes with the more conventional lattice-antiferromagnetic instability, which interestingly develops at smaller bias under weaker interactions than in monolayer graphene, due to Fermi velocity suppression. This rich and electrically controllable magnetism could turn twisted bilayer graphene into an ideal system to study frustrated magnetism in two dimensions, with interesting potential also for a range of applications.
description: 7 pages, 3 figures. Minor corrections