cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Puzzling Story of Flare Inactive Ultra Fast Rotating M dwarfs. I. Exploring their Magnetic Fields
Creators: name: Doyle, Lauren
name: Bagnulo, Stefano
name: Ramsay, Gavin
name: Doyle, Gerry
name: Hakala, Pasi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stars which are rapidly rotating are expected to show high levels of activity according to the activity-rotation relation. However, previous TESS studies have found Ultra Fast Rotating (UFR) M dwarfs with periods less than one day displaying low levels of flaring activity. As a result, in this study, we utilise VLT/FORS2 spectropolarimetric data of ten M dwarf UFR stars between spectral types $\sim$M2 - M6 all with $P_{\rm rot}
description: 11 Pages, 6 Figures and 3 Tables, accepted for publication in MNRAS
Alexander von Humboldt und Ulrich Jasper Seetzen – Auf den Spuren eines Helgoland-Briefs
Creators: name: Schulz-Lüperetz, Eberhard
Publisher: name: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien
Year: 2022

description: Zusammenfassung Die beiden Forschungsreisenden Alexander von Humboldt und Ulrich Jasper Seetzen haben sich während der gemeinsamen Studienzeit in Göttingen kennengelernt und sich dort über ihre Arbeiten zur Naturkunde ausgetauscht. Später brach Seetzen, wie Humboldt, zu einer großen Expedition auf, die ihn als ersten Europäer durch das zentrale Afrika führen sollte. Seine Forschungen im Nahen Osten gelten bis heute als Pionierleistungen der Orientalistik. Das Unternehmen fand auf der arabischen Halbinsel ein vorzeitiges, tragisches Ende. Über die Beziehung der beiden Kommilitonen während ihrer Göttinger Zeit war bislang wenig bekannt. Ein kürzlich entdecktes Brieffragment ermöglicht neue Einblicke. Es erweist sich als eine Abschrift Seetzens aus einem bislang unbekannten Brief des einundzwanzigjährigen Humboldt über dessen Helgolandreise 1790. Im Zusammenhang mit weiteren Quellen kann diese Jugendfreundschaft nun besser bewertet werden. Summary Alexander von Humboldt and the Frisian naturalist Ulrich Jasper Seetzen met in 1789 during their studies at the University of Göttingen. They shared common scientific interests in natural history. Later Seetzen, like Humboldt, conducted a multidisciplinary expedition which was meant to encompass the Middle East, Arabia and, as a final destination, central Africa which he intended to traverse as the first European traveller. The expedition came to an abrupt end in Yemen. This short description of Seetzen’s life and work focuses on his early relation to Humboldt. The paper centers around an investigation of a manuscript written by Seetzen which turns out to be an excerpt of a so far unknown letter by the 21-year-old Humboldt featuring a short observation abstract of his journey to the North Sea island Helgoland in 1790. Résumé Les deux voyageurs scientifiques Alexandre de Humboldt et Ulrich Jasper Seetzen se sont connus au cours de leurs études universitaires à Goettingen. Ce fut là qu’ils se sont échangés sur la connaissance de la nature. Comme Humboldt, Seetzen partit pour une grande expédition qui devait le conduire, en tant que premier Européen, à l’Afrique centrale. Ses recherches au Proche-Orient sont considérées, aujourd’hui même, comme des travaux pionniers de l’orientalisme. A la péninsule arabe, son entreprise échoua d’une façon tragique. Peu de chose est connu, jusqu’à présent, de leurs relations pendant leurs études à Goettingen. Le fragment d‘’une lettre récemment découverte nous permet d’en savoir plus. Il s’agit de la copie de la main de Seetzen d’une lettre, inconnue jusqu’à maintenant, du jeune Humboldt âgé de 21 anssur son voyagew à lîle de Helgoland en 1790. A l’aide d’autres sources en plus, l’amitié entre les deux jeunes peut être évalué d’une façon plus précise.
description: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, Bd. 23 Nr. 44 (2022)
X-ray properties of protostars in the Orion Nebula
Creators: name: Prisinzano, L.
name: Micela, G.
name: Flaccomio, E.
name: Stauffer, J. R.
name: Megeath, T.
name: Rebull, L.
name: Robberto, M.
name: Smith, K.
name: Feigelson, E. D.
name: Grosso, N.
name: Wolk, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The origin and evolution of the X-rays in very young stellar objects (YSOs) are not yet well understood since it is very hard to observe YSOs in the protostellar phase. We study the X-ray properties of Class 0-I objects in the Orion Nebula Cluster (ONC) and compare them with those of the more evolved Class II and III members. Using Chandra Orion Ultradeep Project (COUP) data, we study the X-ray properties of stars in different evolutionary classes: luminosities, NH, temperatures and time variability are compared in order to understand if the interaction between the circumstellar material and the central object can influence the X-ray emission. We have assembled the deepest and most complete photometric catalog of objects in the ONC region from the UV to 8 microns using data from HST, WFI@2.2m ESO and ISPI@4m CTIO telescopes, and Spitzer IRAC. We select high probability candidate Class 0-I protostars, distinguishing between those having a spectral energy distribution which rises from K up to 8 microns (Class 0-Ia) from those where the SED rises from K up to 4.5 microns and decreasing afterwards (Class 0-Ib). We select a sample of bona fide Class II stars and a set of Class III stars with IR emission consistent with normal photospheres. Our principal result is that Class 0-Ia objects are significantly less luminous in X-rays, both in the total and hard bands, than the more evolved Class II stars with mass larger than 0.5 Msun; these latter show X-ray luminosities similar to those of Class 0-Ib stars. This result supports the hypothesis that the onset of X-ray emission occurs at a very early stage of star formation. Temporal variability and spectral properties of Class 0-I stars are similar to those of the more evolved Class II and III objects, except for a larger absorption likely due to gas in the circumstellar material.
description: Comments: 38 pages, 14 Postscript figures, 14 Tables. Accepted for publication in ApJ
Generalized Bernstein operators on the classical polynomial spaces
Creators: name: Aldaz, J. M.
name: Render, H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 41A10

description: We study generalizations of the classical Bernstein operators on polynomial spaces, where instead of fixing $\mathbf{1}$ and $x$, we require that $\mathbf{1}$ and a strictly increasing polynomial $f_1$ be fixed. Via several examples, we exhibit the diversity of behaviours in this more general setting. We also prove that for sufficiently large dimensions, there always exist generalized Bernstein operators fixing $\mathbf{1}$ and $f_1$, and converging to the identity.
description: 21 pages, incorporates the corrections indicated by the referees
Shape of a skyrmion
Creators: name: Yang, Ji-Chong
name: Mao, Qing-Qing
name: Shi, Yu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a method of determining the shape of a two-dimensional magnetic skyrmion, which can be parameterized as the position dependence of the orientation of the local magnetic moment, by using the expansion in terms of the eigenfunctions of the Schrödinger equation of a harmonic oscillator. A variational calculation is done, up to the next-to-next-to-leading order. This result is verified by a lattice simulation based on Landau-Lifshitz-Gilbert equation. Our method is also applied to the dissipative matrix in the Thiele equation as well as two interacting skyrmions in a bilayer system.
description: 25 pages, 11 figures
Additional file 1: of Partial Tmem106b reduction does not correct abnormalities due to progranulin haploinsufficiency
Creators: name: Arrant, Andrew
name: Nicholson, Alexandra
name: Xiaolai Zhou
name: Rademakers, Rosa
name: Roberson, Erik
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Figure S1. Measurement of Glycosylated HexA and GCase by Western Blot. The western blots in fig. 3 measured the glycosylated forms of HexA and GCase, which was confirmed by loss of these bands after digestion with the glycosidase PNGase F. The glycosylated forms of HexA and GCase are labeled with black arrows, the unglycosylated forms with gray arrows, and nonspecific bands with asterisks. (DOCX 195 kb)
Arrêt du conseil d'État du roi
Creators: name: Louis XIV (Roi De France ; 1638-1715)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2017
Subjects: Justice royale
Organisation judiciaire
Décision de justice

description: Source: http://catalogue.bnf.fr/ark:/12148/cb39373083t.public
description: Coverage: Parlement de Flandre
description: issued: 22/03/1689
Assessing health risks in esports players: An investigation using MOGASH scale for online gaming addiction and correlation with BMI
Creators: name: Mirani, Mumuxkumar
name: Gohil, Nidhi
name: Patel, Neha
Publisher: name: Zenodo
Year: 2024
Subjects: Esports
MOGASH Scale
BMI
physical health status
psychological health status

description: Abstract Background: The new era in the gaming world where electronic sports which is known as Esports requires physical and mental health statuses, awareness, capability as well as adaptability. When performing on a competitive or practice basis in any esports and/or online games, different esports players should also understand the hazardous effects of an online games and regarding that their health statuses with managing gaming performance affected by it. MOGASH scale is the newest and structured for the esports and electronic gaming world which is questioning the players about their health statuses in regards of physical and mental well-being. This MOGASH scale is online gaming specific scale and/or outcome measure scale which tends to check the health statuses for the same. Methods: Cross sectional survey study was conducted on a total of 221 participants, adult esports players from two different online gaming settings were taken for the study as per inclusion and exclusion criteria. Non-probability convenience sampling was done. They were assigned in to complete questions in given questionnaire with the help of MOGASH scale and its interpretation.  Results: A total of 221 participants were screened to check the health statuses regarding physical health and psychological health with by asking questions in questionnaire by using MOGASH scale. The statistical analysis was done. The descriptive result of Pearson’s correlation coefficient noted with -0.008 stated no correlation between MOGASH scores and BMI scores. But, MOGASH scale scores noted moderate level of risk on health status with 58% inclusion of esports players. Conclusion: MOGASH score noted on a moderate level of risk on health status of Esports players and no correlation found between Gaming Addiction and BMI scores.
Two-pion-exchange effects in the $pp\to ppπ^0$ reaction
Creators: name: Myhrer, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the pp \to ppπ^0 reaction near threshold based on heavy-baryon chiral perturbation theory. We show that the two-pion-exchange diagrams give much larger contribution than the one-pion-exchange diagram which is of lower chiral order in Weinberg's counting scheme. We also discuss the relation of our results to the momentum counting scheme.
description: talk at MENU 2007 conference, 8 pages, 1 figure, to appear in the proceedings
Unraveling the Global Warming Mitigation Potential from Recycling Subway‐Related Excavated Soil and Rock in China Via Life Cycle Assessment
Creators: name: Zhang, Ning
name: Zhang, Hui
name: Schiller, Georg
name: Feng, Haibo
name: Gao, Xiaofeng
name: Li, Enming
name: Li, Xiujie
Publisher: name: FID GEO
Year: 2021

description: Many cities across China are investing in subway projects, resulting in much subway construction activity, which has experienced a surge over the past decade. The construction activities inevitably cause a dramatic quantity of subway‐related excavated soil and rock (ESR). How to manage it with minimal environmental impact on our urban ecosystem remains an open question. The present study evaluates global warming potential (GWP, expressed by CO2 eq) from different ESR recycling and landfilling scenarios via a life cycle assessment (LCA) model based on primary field investigation combined with the LCA software database. The study results illustrate that recycling ESR can significantly reduce greenhouse gas emissions. In comparison with traditional construction materials, the scenarios found that a cumulative amount of 1.1 to 1.5 million tonnes (Mt) of CO2 eq emissions could have been mitigated by using ESR generated between 2010 and 2018 to produce baking‐free bricks and recycled baked brick. Using cost–benefit analysis, potential economic benefits from recycled sand and baking‐free bricks are found to reach US$9 million annually. The findings of this study could provide better recycling options for ESR‐related stakeholders. It is important to mention that there still is much work to be done before this recycling work can be popularized in China. Integr Environ Assess Manag 2021;17:639–650. © 2020 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC)
description: KEY POINTS: This study focuses on the global warming potential (GWP) assessment of excavated soil and rock (ESR). Cumulative CO2 mitigation potential by recycling ESR was calculated. More than US$8 million profit could have been reached annually between 2006 and 2018. Cumulative CO2 mitigation potential could have been as high as 1.5 Mt from 2010 to 2018.
Kurt-R. Biermann: Die Datierung der Briefe Alexander von Humboldts – dargestellt als Modellfall für die editorische Bearbeitung naturwissenschaftlicher Briefe und Dokumente (Mit einer einleitenden Bemerkung von Ingo Schwarz)
Creators: name: Schwarz, Ingo
name: Biermann, Kurt-R.
Publisher: name: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien
Year: 2022

description: Kein Abstract vorhanden.
description: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, Bd. 23 Nr. 45 (2022)
The Near-Infrared CO Absorption Band as a Probe to the Innermost Part of an AGN Obscuring Material
Creators: name: Baba, S.
name: Nakagawa, T.
name: Isobe, N.
name: Shirahata, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We performed a systematic analysis of the 4.67 $μ$m CO ro-vibrational absorption band toward nearby active galactic nuclei (AGNs) and analyzed the absorption profiles of ten nearby galaxies collected from the AKARI and Spitzer spectroscopic observations that show the CO absorption feature by fitting a plane-parallel local thermal equilibrium gas model. We found that CO gas is warm (200--500 K) and has a large column density ($N_\mathrm{H}\gtrsim10^{23}~\mathrm{cm^{-2}}$). The heating of the gas is not explicable by either UV heating or shock heating because these processes cannot represent the large column densities of the warm gas. Instead, X-ray photons from the nuclei, which can produce large columns of warm gas with up to $N_\mathrm{H}\sim10^{24}~\mathrm{cm^{-2}}$, are the most convincing power source. The hydrogen column density estimated from the CO band is smaller than that inferred from X-ray observations. These results indicate that the region probed by the near-infrared CO absorption is in the vicinity of the nuclei and is located outside the X-ray emitting region. Furthermore, the covering factors close to unity required by the observed deep absorption profiles suggest that the probed region is close to the continuum source, which can be designated as the inner rim of the obscuring material around the AGN.
description: Accepted for publication in ApJ. Duplicate sub figures in Figure 1 have been replaced with the correct ones (v2)
Análisis del acceso abierto en universidades. El caso UdeA
Creators: name: , Pallares
Publisher: name: Zenodo
Year: 2019
Subjects: Open science
Open Access
Universidad de Antioquia
Article Proccesing Charges

description: Presentación sobre el acceso abierto en la Universidad de Antioquia, haciendo énfasis en el pago por APC en la Universidad
Enriques and Octonionic Magic Supergravity Models
Creators: name: Bianchi, Massimo
name: Ferrara, Sergio
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We reconsider the Enriques Calabi Yau (FHSV) model and its string derivation and argue that the Octonionic magic supergravity theory admits a string interpretation closely related to the Enriques model. The uplift to D=6 of the Octonionic magic model has 16 abelian vectors related to the rank of Type I and Heterotic strings.
description: 24 pages
A Census of X-ray Millisecond Pulsars in Globular Clusters
Creators: name: Zhao, Jiaqi
name: Heinke, Craig O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a comprehensive census of X-ray millisecond pulsars (MSPs) in 29 Galactic globular clusters (GCs), including 68 MSPs with confirmed X-ray luminosities and 107 MSPs with X-ray upper limits. We compile previous X-ray studies of GC MSPs, and add new analyses of six MSPs (PSRs J1326$-$4728A, J1326$-$4728B, J1518$+$0204C, J1717$+$4308A, J1737$-$0314A, and J1807$-$2459A) discovered in five GCs. Their X-ray spectra are well described by a single blackbody model, a single power-law model, or a combination of them, with X-ray luminosities ranging from 1.9$\times$10$^{30}$ erg s$^{-1}$ to 8.3$\times$10$^{31}$ erg s$^{-1}$. We find that most detected X-ray MSPs have luminosities between $\sim 10^{30}$ erg s$^{-1}$ to $3 \times 10^{31}$ erg s$^{-1}$. Redback pulsars are a relatively bright MSP population with X-ray luminosities of $\sim2\times10^{31}$--$3\times10^{32}$ erg s$^{-1}$. Black widows show a bi-modal distribution in X-ray luminosities, with eclipsing black widows between $\sim 7\times10^{30}$ and $2\times10^{31}$ erg s$^{-1}$, while the two confirmed non-eclipsing black widows are much fainter, with $L_X$ of $1.5-3\times10^{30}$ erg s$^{-1}$, suggesting an intrinsic difference in the populations. We estimate the total number of MSPs in 36 GCs by considering the correlation between the number of MSPs and stellar encounter rate in GCs, and suggest that between 600--1500 MSPs exist in these 36 GCs. Finally, we estimate the number of X-ray detectable MSPs in the Galactic bulge, finding that 1--86 MSPs with $L_X > 10^{33}$ erg s$^{-1}$, and 20--900 MSPs with $L_X > 10^{32}$ erg s$^{-1}$, should be detectable there.
description: 20 pages, 14 figures, 12 tables. Accepted for publication in MNRAS
Modelling future lahars controlled by different volcanic eruption scenarios at Cotopaxi (Ecuador) calibrated with the massively destructive 1877 lahar
Creators: name: Frimberger, Theresa
name: Andrade, S. Daniel
name: Weber, Samuel
name: Krautblatter, Michael
Publisher: name: FID GEO
Year: 2021

description: Lahars are among the most hazardous mass flow processes on earth and have caused up to 23 000 casualties in single events in the recent past. The Cotopaxi volcano, 60 km southeast of Quito, has a well‐documented history of massively destructive lahars and is a hotspot for future lahars due to (i) its ~10 km2 glacier cap, (ii) its 117–147‐year return period of (Sub)‐Plinian eruptions, and (iii) the densely populated potential inundation zones (300 000 inhabitants). Previous mechanical lahar models often do not (i) capture the steep initial lahar trajectory, (ii) reproduce multiple flow paths including bifurcation and confluence, and (iii) generate appropriate key parameters like flow speed and pressure at the base as a measure of erosion capacity. Here, we back‐calculate the well‐documented 1877 lahar using the RAMMS debris flow model with an implemented entrainment algorithm, covering the entire lahar path from the volcano edifice to an extent of ~70 km from the source. To evaluate the sensitivity and to constrain the model input range, we systematically explore input parameter values, especially the Voellmy–Salm friction coefficients μ and ξ. Objective selection of the most likely parameter combinations enables a realistic and robust lahar hazard representation. Detailed historic records for flow height, flow velocity, peak discharge, travel time and inundation limits match best with a very low Coulomb‐type friction μ (0.0025–0.005) and a high turbulent friction ξ (1000–1400 m/s2). Finally, we apply the calibrated model to future eruption scenarios (Volcanic Explosivity Index = 2–3, 3–4, >4) at Cotopaxi and accordingly scaled lahars. For the first time, we anticipate a potential volume growth of 50–400% due to lahar erosivity on steep volcano flanks. Here we develop a generic Voellmy–Salm approach across different scales of high‐magnitude lahars and show how it can be used to anticipate future syneruptive lahars.
description: A generic model approach is developed to simulate massive syneruptive lahars at Cotopaxi from initiation on the steep volcano flanks to distal reaches. Evaluation of 14 calibration constraints shows that the Voellmy–Salm model reliably reproduces bulk behaviour of syneruptive lahars. Estimations of lahar erosivity on the volcano flanks anticipate an erosion‐related volume increase for future Cotopaxi lahars between 50 and 400%.
description: Bundesministerium für Bildung und Forschung http://dx.doi.org/10.13039/501100002347
On the inherent competition between valid and spurious inductive inferences in Boolean data
Creators: name: Andrecut, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Inductive inference is the process of extracting general rules from specific observations. This problem also arises in the analysis of biological networks, such as genetic regulatory networks, where the interactions are complex and the observations are incomplete. A typical task in these problems is to extract general interaction rules as combinations of Boolean covariates, that explain a measured response variable. The inductive inference process can be considered as an incompletely specified Boolean function synthesis problem. This incompleteness of the problem will also generate spurious inferences, which are a serious threat to valid inductive inference rules. Using random Boolean data as a null model, here we attempt to measure the competition between valid and spurious inductive inference rules from a given data set. We formulate two greedy search algorithms, which synthesize a given Boolean response variable in a sparse disjunct normal form, and respectively a sparse generalized algebraic normal form of the variables from the observation data, and we evaluate numerically their performance.
description: 12 pages, 2 figures, Int. J. Mod. Phys. C, 2017
Additional file 4: of A novel design process for selection of attributes for inclusion in discrete choice experiments: case study exploring variation in clinical decision-making about thrombolysis in the treatment of acute ischaemic stroke
Creators: name: BrĂşn, Aoife De
name: Flynn, Darren
name: Ternent, Laura
name: Price, Christopher
name: Rodgers, Helen
name: Ford, Gary
name: Rudd, Matthew
name: Lancsar, Emily
name: Simpson, Stephen
name: Teah, John
name: Thomson, Richard
Publisher: name: figshare
Year: 2018
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Operational definitions for variable attribute levels in the DCE. Table presenting definitions used for attribute levels in the DCE. (DOCX 13Â kb)
Ein Brief Alexander von Humboldts an Charles-Guillaume Etienne
Creators: name: Päßler, Ulrich
name: Schwarz, Ingo
Publisher: name: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien
Year: 2022

description: Zusammenfassung Dieser Artikel skizziert erstmals Alexander von Humboldts Verbindung zu dem französischen Dramatiker, Parlamentarier und Miteigentümer der Tageszeitung „Le Constitutionnel“ Charles-Guillaume Étienne (1777–1845). Wir veröffentlichen das einzige bislang bekannte Schreiben Humboldts an Étienne und stellen Erwähnungen Humboldts sowie seines gelehrten Netzwerkes in „Le Constitutionnel“ der Jahre 1821 bis 1826 zusammen. Die Dokumente machen deutlich, wie Humboldt Zeitungsberichte für seine wissenschaftliche Öffentlichkeitsarbeit einsetzte. Abstract This article outlines for the first time Alexander von Humboldt’s connection to the French playwright, parliamentarian, and co-owner of the daily newspaper “Le Constitutionnel” Charles-Guillaume Étienne (1777–1845). We publish the only letter from Humboldt to Étienne known to date and compile references to Humboldt as well as his scholarly network in “Le Constitutionnel” from 1821 to 1826. The documents illustrate how Humboldt made use of newspaper reports to manage his scientific public relations. Résumé Cet article expose pour la première fois les liens entre Alexander von Humboldt et l’auteur dramatique, parlementaire et copropriétaire du quotidien « Le Constitutionnel » Charles-Guillaume Étienne (1777–1845). Nous publions la seule lettre de Humboldt à Étienne actuellement connue et compilons les mentions à Humboldt ainsi qu’à son réseau savant dans « Le Constitutionnel » de 1821 à 1826. Les documents illustrent comment Humboldt a utilisé les articles de journaux pour sa communication scientifique.
description: HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, Bd. 23 Nr. 45 (2022)
Classical and new loglog-theorems
Creators: name: Rashkovskii, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C85, 30D45, 31A05

description: We present integral variants of results due to Carleman, Wolf, Levinson, Sjoberg, and Matsaev on majorants of analytic functions. Main ingredient is a complete description for radial projections of harmonic measures of strictly star-shaped domains in the plane.
description: Proof of Theorem 5 is considerably simplified. Typos in the proof of Theorem 4 fixed.
Role of lithium intercalation in fluorine-doped tin oxide thin films: Ab-initio calculations and experiment
Creators: name: Perez, Israel
name: Sosa, Victor
name: Gamboa, Fidel
name: Enriquez-Carrejo, Jose Luis
name: Sanchez, Juan Carlos Mixteco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using a combination of experimental techniques and density functional theory (DFT) calculations, the influence of lithium insertion on the electronic and electrochemical properties of fluourine-doped SnO$_2$ (FTO) is assessed. For this purpose, we investigate the electrochromic behavior of commercial FTO electrode embedded in a solution of lithium perclorate (LiClO$_4$). The electrochromic properties are evaluated by UV-VIS spectroscopy, cyclic voltammetry, and chronoamperometry. These tests show that FTO exhibits electrochromism with a respectable coloration efficiency ($η=47.9$ cm$^2$/C @ 637 nm). DFT study indicates that lithium remains ionized in the lattice, raising the Fermi level about 0.7 eV deep into the conduction band. X-ray photoelectron spectroscopy (XPS) is used to study chemical bonding and oxidation states. XPS analysis of the Sn 3d core levels reveals that lithium insertion in FTO induces a shift of 350 meV in the Sn 3d states suggesting that lithium is incorporated into the SnO$_2$ lattice.
description: 20 pages, 8 figures, research article
Humboldt and his geographical album of New Spain
Creators: name: Puig-Samper, Miguel Ángel
Publisher: name: HiN - Alexander von Humboldt in the Net. International Review for Humboldt Studies
Year: 2022

description: Abstract During his trip to New Spain in 1803, Alexander von Humboldt visited large tracts of New Spanish territory, which includes modern Mexico and part of the United States. This trip provided the data for his geographical Atlas of the region, as well as information about the ancient Mexican cultures that he would later include in the general Atlas and in other major works, such as Vues des Cordillères. Likewise, Humboldt’s Political Essay on the Kingdom of New Spain displayed a comprehensive physical, natural, economic, and social description of Mexico in the colonial period, which will also be analysed. With these works, Humboldt presented a new geographical and cultural image of New Spain to the European audiences. In addition to this, his work made important contributions to cartographic knowledge. Resumen Alexander von Humboldt en su viaje a Nueva España en 1803 tuvo la oportunidad de viajar por gran parte del territorio novohispano, que incluye Mexico y parte de del actual territorio de Estados Unidos. Este viaje le permitió preparar un Atlas geográfico de la región, además de obtener información sobre las antiguas culturas mexicanas que luego plasmará en el Atlas general del viaje y en algunas de sus principales obras como Vues des Cordillères. Asimismo, Humboldt hizo una excelente descripción física, natural, económica y social de México en la época colonial en su Ensayo político sobre el Reino de la Nueva España que también será analizado. Con estas obras Humboldt logró ofrecer una nueva imagen del territorio novohispano y sus riquezas al mundo europeo, así como un conocimiento cartográfico de gran importancia. Résumé Alexander von Humboldt, lors de son voyage en Nouvelle-Espagne en 1803, a eu l’occasion de parcourir une grande partie du territoire de la Nouvelle-Espagne, qui comprend le Mexique et une partie du territoire actuel des États-Unis. Ce voyage lui a permis de préparer un Atlas géographique de la région, ainsi que d’obtenir des informations sur les anciennes cultures mexicaines qu'il inclura plus tard dans l’Atlas général du voyage et dans certaines de ses œuvres principales comme Vues des Cordillères. Humboldt a également donné une excellente description physique, naturelle, économique et sociale du Mexique à l’époque coloniale dans son Essai Politique sur le Royaume de la Nouvelle Espagne, qui sera également analysé. Avec ces travaux, Humboldt a réussi à offrir au monde européen une nouvelle image du Nouveau territoire espagnol et de ses richesses, de même qu’une connaissance cartographique de grande importance.
description: HiN - Alexander von Humboldt in the Net. International Review for Humboldt Studies, Bd. 23 Nr. 45 (2022)
The gravitational field of a laser beam beyond the short wavelength approximation
Creators: name: Schneiter, Fabienne
name: Rätzel, Dennis
name: Braun, Daniel
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Light carries energy, and therefore, it is the source of a gravitational field. The gravitational field of a beam of light in the short wavelength approximation has been studied by several authors. In this article, we consider light of finite wavelengths by describing a laser beam as a solution of Maxwell's equations and taking diffraction into account. Then, novel features of the gravitational field of a laser beam become apparent, such as frame-dragging due to its spin angular momentum and the deflection of parallel co-propagating test beams that overlap with the source beam. Even though the effects are too small to be detected with current technology, they are of conceptual interest, revealing the gravitational properties of light.
description: 16 pages, 7 figures
Additional file 1: of PCR-based detection of Plasmodium falciparum in saliva using mitochondrial cox3 and varATS primers
Creators: name: Lloyd, Yukie
name: Livo Esemu
name: Jovikka Antallan
name: Thomas, Bradley
name: Yunga, Samuel Tassi
name: Bekindaka Obase
name: Christine, Nana
name: Leke, Rose
name: Culleton, Richard
name: Mfuh, Kenji
name: Nerurkar, Vivek
name: Taylor, Diane
Publisher: name: figshare
Year: 2018
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Table S1. Raw data are provided in the Table. The results have been sorted by parasitemia that was determined by thick-film microscopy. Shaded blocks indicate where a difference between the three PCR assays evaluated was seen. (DOCX 26 kb)
Women’s Experiences of Intimate Gender-Based Violence: Victim-Survivors’ Perspectives on Understanding and Responding to Traumatic Coercive Control in Australia
Creators: name: Kassing, Kristy
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 440599
subject: Gender studies not elsewhere classified

description: Thesis submitted in total fulfilment of the requirements for the degree of Master of Arts to the School of Humanities and Social Sciences, La Trobe University, Victoria, Australia.
Privacy-Preserving Aggregate Queries for Optimal Location Selection
Creators: name: Yilmaz, Emre
name: Ferhatosmanoglu, Hakan
name: Ayday, Erman
name: Aksoy, Remzi Can
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Today, vast amounts of location data are collected by various service providers. These location data owners have a good idea of where their users are most of the time. Other businesses also want to use this information for location analytics, such as finding the optimal location for a new branch. However, location data owners cannot share their data with other businesses, mainly due to privacy and legal concerns. In this paper, we propose privacy-preserving solutions in which location-based queries can be answered by data owners without sharing their data with other businesses and without accessing sensitive information such as the customer list of the businesses that send the query. We utilize a partially homomorphic cryptosystem as the building block of the proposed protocols. We prove the security of the protocols in semi-honest threat model. We also explain how to achieve differential privacy in the proposed protocols and discuss its impact on utility. We evaluate the performance of the protocols with real and synthetic datasets and show that the proposed solutions are highly practical. The proposed solutions will facilitate an effective sharing of sensitive data between entities and joint analytics in a wide range of applications without violating their customers' privacy.
description: IEEE Transactions on Dependable and Secure Computing, 2017
Disentangling the parameter space: The role of planet multiplicity in triggering dynamical instabilities on planetary systems around white dwarfs
Creators: name: Maldonado, R. F.
name: Villaver, E.
name: Mustill, A. J.
name: Chávez, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Planets orbiting intermediate and low-mass stars are in jeopardy as their stellar hosts evolve to white dwarfs (WDs) because the dynamics of the planetary system changes due to the increase of the planet:star mass ratio after stellar mass-loss. In order to understand how the planet multiplicity affects the dynamical stability of post-main sequence (MS) systems, we perform thousands of N-body simulations involving planetary multiplicity as the variable and with a controlled physical and orbital parameter space: equal-mass planets; the same orbital spacing between adjacent planet's pairs; and orbits with small eccentricities and inclinations. We evolve the host star from the MS to the WD phase following the system dynamics for 10 Gyr. We find that the fraction of dynamically active simulations on the WD phase for two-planet systems is $10.2^{+1.2}_{-1.0}$-$25.2^{+2.5}_{-2.2}$ $\%$ and increases to $33.6^{+2.3}_{-2.2}$-$74.1^{+3.7}_{-4.6}$ $\%$ for the six-planet systems, where the ranges cover different ranges of initial orbital separations. Our simulations show that the more planets the system has, the more systems become unstable when the star becomes a WD, regardless of the planet masses and range of separations. Additional results evince that simulations with low-mass planets (1, 10 $\mathrm{M_\oplus}$) lose at most two planets, have a large fraction of systems undergoing orbit crossing without planet losses, and are dynamically active for Gyr time-scales on the WD's cooling track. On the other hand, systems with high-mass planets (100, 1000 $\mathrm{M_\oplus}$) lose up to five planets, preferably by ejections, and become unstable in the first few hundred Myr after the formation of the WD.
description: 12 pages, 8 figures, accepted for publication in MNRAS
Dynamics, dephasing and clustering of impurity atoms in Bose-Einstein condensates
Creators: name: Klein, Alexander
name: Bruderer, Martin
name: Clark, Stephen R.
name: Jaksch, Dieter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the influence of a Bose-Einstein condensate (BEC) on the properties of immersed impurity atoms, which are trapped in an optical lattice. Assuming a weak coupling of the impurity atoms to the BEC, we derive a quantum master equation for the lattice system. In the special case of fixed impurities with two internal states the atoms represent a quantum register and the quantum master equation reproduces the exact evolution of the qubits. We characterise the qubit dephasing which is caused by the interspecies coupling and show that the effect of sub- and superdecoherence is observable for realistic experimental parameters. Furthermore, the BEC phonons mediate an attractive interaction between the impurities, which has an important impact on their spatial distribution. If the lattice atoms are allowed to move, there occurs a sharp transition with the impurities aggregating in a macroscopic cluster at experimentally achievable temperatures. We also investigate the impact of the BEC on the transport properties of the impurity atoms and show that a crossover from coherent to diffusive behaviour occurs with increasing interaction strength.
description: 22 pages, 8 figures, some typos corrected
title: Entwicklung, Programmierung und Inbetriebnahme eines Demoboards zum Test des Radarsensorchips BGT60LTR11AIP
Creators: name: Schneider, Janis
Publisher: name: HAWK Hochschule für angewandte Wissenschaft und Kunst
Year: 2023
Subjects: subject: Programmierung
subject: Entwicklung
subject: Radarsensor
subject: Chip
subject: Automatisierungstechnik
subject: 621.3

description: Ziel dieser Arbeit ist die Erstellung eines Demonstrationsboards für den Radarsensorschaltkreis BGT60LTR11AIP, damit dieser auch außerhalb seines vorgesehenen Anwendungsbereichs verwendet werden kann. Sie Entwicklung eines Demoboards für den 60GHz Radar-Sensor BGT60LTR11AIP [1] auf. Bei dem BGT60LTR11AIP (BGT) handelt es sich um einen vollintegrierten Mikrowellensensor, der zur Bewegungs- bzw. Anwesenheitserkennung von Personen im Innenraum vorgesehen ist. Er mischt das Sende- mit dem Empfangssignal und gibt das daraus entstehende Zwischenfrequenzsignal aus. Daraus können Geschwindigkeits- und Richtungsinformationen gewonnen werden. Basierend auf dem Schaltplan der Bachelorpraxisprojektarbeit wurde ein Platinen-Layout erstellt und anschließend ein Demoboard mit den an der HAWK zur Verfügung stehenden Mitteln gefertigt, aufgebaut und in Betrieb genommen. Zudem konnte der Lötprozess des Radarsensorschaltkreises (mittels Reflow-Lötverfahren) an der HAWK reproduziert werden. Zur Steuerung und Auswertung wurde die Entwicklungsumgebung für den auf dem Demoboard verbauten Mikrocontroller aufgesetzt und Softwareroutinen für den BGT programmiert. Einstellungen können dadurch leicht in einer Konfigurationsdatei vorgenommen und Ergebnisse auf einem Computer ausgegeben werden. Bisher ist es möglich die digitalisierten Daten des Zwischenfrequenzsignals oder die daraus berechnete Geschwindigkeit mit Richtungsinformation ausgeben zu lassen. Weitere Anwendungsmöglichkeiten des Radarsensors außerhalb seines vorgesehenen Anwendungsbereichs bestehen allerdings nur in geringem Maße. Für eine direkte Entfernungsmessung ist der BGT aufgrund seiner Pulslänge beispielsweise nicht geeignet. Durch die im Vergleich zum Mikrokontroller hohe Rechenleistung eines Computers könnte das Zwischenfrequenzsignal in Zukunft noch besser ausgewertet werden und genauere Geschwindigkeitswerte liefern.
Hamiltonian vs stability and application to Horndeski theory
Creators: name: Babichev, Eugeny
name: Charmousis, Christos
name: Esposito-Farese, Gilles
name: Lehébel, Antoine
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Hamiltonian density bounded from below implies that the lowest-energy state is stable. We point out, contrary to common lore, that an unbounded Hamiltonian density does not necessarily imply an instability: Stability is indeed a coordinate-independent property, whereas the Hamiltonian density does depend on the choice of coordinates. We discuss in detail the relation between the two, starting from k-essence and extending our discussion to general field theories. We give the correct stability criterion, using the relative orientation of the causal cones for all propagating degrees of freedom. We then apply this criterion to an exact Schwarzschild-de Sitter solution of a beyond-Horndeski theory, while taking into account the recent experimental constraint regarding the speed of gravitational waves. We extract the spin-2 and spin-0 causal cones by analyzing respectively all the odd-parity and the $\ell = 0$ even-parity modes. Contrary to a claim in the literature, we prove that this solution does not exhibit any kinetic instability for a given range of parameters defining the theory.
description: 32 pages, 2 figures; v2: covariant writing of the stability criterion added in Eqs. (10)-(12)
4D quantification of alpine permafrost degradation in steep rock walls using a laboratory‐calibrated electrical resistivity tomography approach
Creators: name: Scandroglio, Riccardo
name: Draebing, Daniel
name: Offer, Maike
name: Krautblatter, Michael
Publisher: name: FID GEO
Year: 2021

description: The warming of rock permafrost affects mechanical stability and hydro‐cryostatic pressures in rock walls. The coincident decrease in slope stability frequently affects infrastructure by creep and subsidence and promotes the generation of rockfalls and rockslides. The increasing hazard posed by warming permafrost rock walls and the growing exposure of infrastructure and individuals create a demand for quantitative monitoring methods. Laboratory‐calibrated electrical resistivity tomography provides a sensitive record for frozen versus unfrozen bedrock, presumably being the most accurate quantitative monitoring technique in permafrost areas where boreholes are not available. The data presented here are obtained at the permafrost‐affected and unstable Steintaelli Ridge at 3100 m a.s.l. and allow the quantification of permafrost changes in the longest electrical resistivity tomography time series in steep bedrock. Five parallel transects across the rock ridge have been measured five times each, between 2006 and 2019, with similar hardware. Field measurements were calibrated using temperature‐resistivity laboratory measurements of water‐saturated rock samples from the site. A 3D time‐lapse inversion scheme is applied in the boundless electrical resistivity tomography (BERT) software for the inversion of the data. To assess the initial data quality, we compare the effect of data filtering and the robustness of final results with three different filters and two time‐lapse models. We quantify the volumetric permafrost distribution in the bedrock and its degradation in the last decades. Our data show mean monthly air temperatures to increase from −3.4°C to −2.6°C between 2005‒2009 and 2015‒2019, respectively, while simultaneously permafrost volume degraded on average from 6790 m3 (±640 m3 rock in phase‐transition range) in 2006 to 3880 m3 (±1000 m3) in 2019. For the first time, we provide a quantitative measure of permafrost degradation in unstable bedrock by using a temperature‐calibrated 4D electrical resistivity tomography. Our approach represents a fundamental benchmark for the evaluation of climate change effects on bedrock permafrost.
Waves in weakly ionised solar plasmas
Creators: name: Alharbi, A.
name: Ballai, I.
name: Fedun, V.
name: Verth, G.
Publisher: name: arXiv
Year: 2022
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: Here we study the nature and characteristics of waves propagating in partially ionised plasmas in the weakly ionised limit, typical for the lower part of the solar atmosphere. The framework in which the properties of waves are discussed depends on the relative magnitude of collisions between particles, but also on the relative magnitude of the collisional frequencies compared to the gyro-frequency of charged particles. Our investigation shows that the weakly ionised solar atmospheric plasma can divided into two regions and this division occurs, roughly, at the base of the chromosphere. In the solar photosphere the plasma is non-magnetised and the dynamics can described within the three-fluid framework where acoustic waves associated to each species can propagate. Due to the very high concentration of neutrals, the neutral sound waves propagates with no damping, while for the other two modes the damping rate is determined by collisions with neutrals. The ion and electron-related acoustic modes propagate with a cut-off determined by the collisional frequency of these species with neutrals. In the weakly ionised chromosphere only electrons are magnetised, however, the strong coupling of charged particles reduces the working framework to a two-fluid model. The disassociation of charged particles creates electric currents that can influence the characteristic of waves. The propagation properties of waves with respect to the angle of propagation are studied with the help of polar diagrams.