cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The co-development of extracurricular activities' programs by the educational community: Case of using the CEC approach in a school in the province Rhamna (Morocco)
Creators: name: Alladatin, Judicaël
name: Roche, Lionel
name: Rabha BARJIT
Publisher: name: Zenodo
Year: 2022
Subjects: Design; identification; learning; relevance; school climate

description: The literature addressing the importance of extracurricular activities (EA) in enhancing students' learning in Morocco is growing (El-Batri et al., 2019) ; (Díaz-Iso et al., 2019) ; (Said Aoujil & Driss Benattabou, 2021) ; (Amara, 2021). However, few studies focus on the design process of EA programs. The design which this process takes is determinant of these activities' outcomes. Therefore, this study addresses the influence of the educational community (EC) inclusion in the co-development of EA programs at a public primary school belonging to the province of Rhamna. It particularly examines efficient ways to involve EC participation. The methodological approach used is based on the “collaborative evaluation, co-construction, and corrective action planning approach in schools” (Alladatin, J & Alchikh, I, 2021). It included semi-structured focus group interviews to collect data and discuss with different stakeholders (School principal, teachers, students, and parents). A participatory evaluation of the school climate and a collaborative identification of the constraints to learning and teaching resulted in the definition of six EA adapted to the school’s context: physical and sports activities, culture and arts, health and personal development, computer and sciences, citizenship, and environmental activities. The results included a content offer comprised of themes, outcomes, schedules, conduct and evaluation, material, and human resources to mobilize. They also showed practical ways to integrate the use of these activities and identified barriers to consider during the implementation, namely the time convenience, teachers’ willingness, funding, poor infrastructure, and students’ awareness of EA importance.
Sonnenfleckenzeichnung Nr. 7.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.01.2015, 09:45, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
On-shell Techniques and Universal Results in Quantum Gravity
Creators: name: Bjerrum-Bohr, N. E. J
name: Donoghue, John F.
name: Vanhove, Pierre
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the leading post-Newtonian and quantum corrections to the Coulomb and Newtonian potentials using the full modern arsenal of on-shell techniques; we employ spinor-helicity variables everywhere, use the Kawai-Lewellen-Tye (KLT) relations to derive gravity amplitudes from gauge theory and use unitarity methods to extract the terms needed at one-loop order. We stress that our results are universal and thus will hold in any quantum theory of gravity with the same low-energy degrees of freedom as we are considering. Previous results for the corrections to the same potentials, derived historically using Feynman graphs, are verified explicitly, but our approach presents a huge simplification, since starting points for the computations are compact and tedious index contractions and various complicated integral reductions are eliminated from the onset, streamlining the derivations. We also analyze the spin dependence of the results using the KLT factorization, and show how the spinless correction in the framework are easily seen to be independent of the interacting matter considered.
description: 34 pages, 7 figures, typos corrected, published version
Sonnenfleckenzeichnung Nr. 78.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 23.04.2015, 09:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Introgression of clubroot resistance from B. oleracea into B. napus and study the inheritance of the resistance
Creators: Tsai, Min-Chien
Publisher: name: University of Alberta Library
Year: 2023

Clubroot disease, caused by Plasmodiophora brassicae, is one of the most devastating threats to Brassica napus canola production worldwide. Growing clubroot-resistant cultivars is considered the most efficient way of managing this disease. All available clubroot-resistant canola cultivars carry resistance in their A-genome. Some of the qualitative resistances located in the A genome of canola became ineffective after growing only for a few years due to the evolution of new P. brassicae pathotypes. This highlighted the need of introducing the quantitative resistance from Brassica oleracea into the C genome of B. napus canola. The objective of this thesis research was to investigate the prospect of developing clubroot-resistant canola quality spring growth habit B. napus plants carrying resistance in the C genome through B. napus × B. oleracea interspecific cross. In addition to this, genetic analysis of clubroot resistance was carried out using canola lines from the canola breeding program to investigate the prospect of developing non-GM (non genetically modified) clubroot resistant canola.

This thesis research demonstrated that clubroot resistant euploid B. napus (2n = 38) lines carrying resistance in the C genome can be achieved in advanced generation population of the B. napus × B. oleracea interspecific cross. Mapping of this resistance identified four QTL located on the C genome chromosomes C04 (two loci), C05 and C08. Agronomic and seed quality analysis of the population showed that clubroot resistant B. napus lines that flower a day earlier than the B. napus parent and contain low erucic acid in seed oil and low glucosinolate in seed meal can be achieved from this population. The average oil and protein contents of the advanced generation population was low; however, these traits can be improved through breeding. Segregation for clubroot resistance in the F2 and backcross (B1 = F1 × Resistant parent; B2 = F1 × Susceptible parent) populations derived from clubroot resistant × susceptible canola crosses showed that a major locus

involved in the control of resistance in these populations. This simpler genetic control of clubroot resistance suggested that clubroot resistant non-GM canola lines can be developed from these populations without facing much difficulty. Thus, the results from this thesis research demonstrated the feasibility of the development of clubroot-resistant spring growth habit B. napus lines carrying clubroot resistance in the C genome, and disclosed the inheritance of clubroot resistance in three canola populations. The knowledge and materials developed from this thesis research can be used in breeding clubroot resistant canola germplasm/cultivars.
Representation of Gaussian Isotropic Spin Random Fields
Creators: name: Baldi, Paolo
name: Rossi, Maurizia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G60

description: We develop a technique for the construction of random fields on algebraic structures. We deal with two general situations: random fields on homogeneous spaces of a compact group and in the spin-line bundles of the 2-sphere. In particular, every spin Gaussian isotropic field can be obtained with this construction. Our construction extends P. Lévy's original idea for the spherical Brownian Motion.
description: 27 pages. Accepted for publication on Stoch. Processes Appl
Effect of metallic walls on dynamos generated by laminar boundary-driven flow in a spherical domain
Creators: name: Guervilly, Celine
name: Wood, Toby S.
name: Brummell, Nicholas H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We present a numerical study of dynamo action in a conducting fluid encased in a metallic spherical shell. Motions in the fluid are driven by differential rotation of the outer metallic shell, which we refer to as "the wall". The two hemispheres of the wall are held in counter-rotation, producing a steady, axisymmetric interior flow consisting of differential rotation and a two-cell meridional circulation with radial inflow in the equatorial plane. From previous studies, this type of flow is known to maintain a stationary equatorial dipole by dynamo action if the magnetic Reynolds number is larger than about 300 and if the outer boundary is electrically insulating. We vary independently the thickness, electrical conductivity, and magnetic permeability of the wall to determine their effect on the dynamo action. The main results are: (a) Increasing the conductivity of the wall hinders the dynamo by allowing eddy currents within the wall, which are induced by the relative motion of the equatorial dipole field and the wall. This processes can be viewed as a skin effect or, equivalently, as the tearing apart of the dipole by the differential rotation of the wall, to which the field lines are anchored by high conductivity. (b) Increasing the magnetic permeability of the wall favors dynamo action by constraining the magnetic field lines in the fluid to be normal to the wall, thereby decoupling the fluid from any induction in the wall. (c) Decreasing the wall thickness limits the amplitude of the eddy currents, and is therefore favorable for dynamo action, provided that the wall is thinner than the skin depth. We explicitly demonstrate these effects of the wall properties on the dynamo field by deriving an effective boundary condition in the limit of vanishing wall thickness.
description: accepted for publication in Physical Review E
Understanding Kamlamunikk (Heart): A Journey Home
Creators: Hurley, Erica J
Publisher: name: University of Alberta Library
Year: 2023

Thump Thump. Swoosh, swoosh. Kamlamunikk. Heart. Mi’kmaq  teachings of heart are tied to concepts such as moontime, spirits, ancestors and blood knowledge. Being a Mi’kmaq woman from the west coast of Newfoundland with strong lifelong community connection I was aware that the understanding of heart was multifaceted. Since Indigenous women experience heart illness at a higher rate than non-Indigenous women and Indigenous men, I engaged with community members in discussions about some potential research in this area. Alongside community members it was determined that the research purpose was to explore and discuss what “heart” means to Mi’kmaw women from the west coast of Newfoundland. The goal was to move past Western language that predominantly understands heart as a vital organ that moves blood within a body. The research was grounded in a Mi’kmaq worldview and aligns with a community based participatory research approach. Four women were invited into the research, all which held strong community relations. The methods were fluid, and included talking circles, conversations, and sharing of images and artefacts. The women chose to meet individually at first and towards the end of the research engaged as a group. As a researcher and community member, I journeyed alongside the women, ultimately becoming a co-inquirer. This journey allowed the stories connected to heart to come to the forefront, as well as it allowed for research process to unfold that contributed to the well-being of Mik’maw women. Overall, heart is connected to trauma, love, culture, medicines, teachings, ancestors, and much more. Mi’kmaw women know what they need to sustain and foster their heart health. Nursing has the potential to shift its direction and help Mi’kmaw women live, instead of simply staying alive. Looking towards the next 7 generations, findings from this research can help health care providers to assist Mi’kmaw women to achieve better heart health outcomes.
Analysis and Design of Highly Efficient Integrated Radio Frequency Energy Harvesters
Creators: Izad, Marzban
Publisher: name: University of Alberta Library
Year: 2023

In the Internet of Things (IoT) era, billions of wireless sensors are anticipated to be deployed annually in places like houses, offices, and cars. Connecting them to the grid or powering them with batteries is not feasible due to wiring infrastructure costs and battery limitations. For full autonomy, these devices should incorporate an energy harvester to scavenge ambient energy. Energy can be harvested from sources such as vibration, solar, and thermal. However, it needs conversion to electric form, often in a battery or capacitor. Radio frequency energy harvesting scavenges electromagnetic waves, offering compatibility with wireless sensing devices and integration at minimal added cost. Significant research is being conducted to enhance the efficiency of radio frequency energy harvesters (RFEHs) to extend the operation range and time of RF-powered devices.

In this dissertation, a non-iterative method for the design of RFEH is proposed with maximum power conversion efficiency (PCE) at any given input power level. Because of the non-linear interdependency of the rectifier’s input impedance and its input voltage to matching network’s and rectifier’s parameters, the design of an RFEH with maximum efficiency requires numerous lengthy transient simulations of the entire energy harvester. Splitting the design space into two separate spaces which only interact with each other through the input voltage of the rectifier, the design goal can now be redefined to finding an optimum input voltage amplitude that maximizes the efficiency of the rectifier while enabling maximum power transfer from the antenna to the input of the rectifier at the same time. Using the proposed method, the number of the required simulations to find optimum design values is significantly reduced compared to all previous methods reported in the literature. To further accelerate the design process, closed-form equations to calculate the efficiency and the input resistance of the rectifier are derived for the battery-loaded Dickson charge pump rectifiers.

The thesis also presents a dynamic energy storage and recovery system for RFEHs. Conventional capacitive energy storage using a fixed-size capacitor faces a trade-off between the rapid start-up of the wireless-powered system and the extended operation duration when the input power of the radio frequency energy harvester becomes extremely low or zero. In our proposed design method, we have eliminated this trade-off by storing excess energy in multiple extra capacitors when the input RF power level is high and recovering the stored energy when the input RF power level is not sufficient for powering the RF-powered devices. This not only ensures a quick start-up but also sustains the operation of the RF-powered system for an extended period.
Linear Symplectomorphisms as R-Lagrangian Subspaces
Creators: name: Hellmann, J. Chris
name: Langenbach, Brennan
name: VanValkenburgh, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 51A50 (Primary), 70H15 (Secondary)

description: The graph of a real symplectic linear transformation is an R-Lagrangian subspace of a complex symplectic vector space. The restriction of the complex symplectic form is thus purely imaginary and may be expressed in terms of the generating function of the transformation. We provide explicit formulas; moreover, as an application, we give an explicit general formula for the metaplectic representation of the real symplectic group.
A characterization of the lipid biosynthetic interactome in Saccharomyces cerevisiae
Creators: Greenwood, Brianna L.
Publisher: name: University of Alberta Library
Year: 2023

Lipids are integral components of all cells. Lipid molecules form the membrane and control membrane integrity while storage lipids act as a source of energy for the cell. The chemical properties of lipids are determined by the composition of the molecule’s acyl chain moieties. Incorporation of unsaturated acyl chains into phospholipids destined for the membrane generates a more fluid membrane, while a more unsaturated acyl chain profile in storage lipids permits lipid droplet biogenesis from the endoplasmic reticulum. In Saccharomyces cerevisiae, acyl-CoA is desaturated by the sole ∆9-desaturase Ole1. Ole1 plays an important role in S. cerevisiae, as up to 80% of the acyl chains are unsaturated. However, unsaturated acyl-CoA is distributed unevenly within the cell. Certain phospholipids, like phosphatidylethanolamine and phosphatidylcholine, are enriched for unsaturated acyl chains, while other phospholipids like phosphatidylinositol contain more saturated moieties. This indicates that the unsaturated acyl-CoA generated by Ole1 is more available to specific lipid biosynthetic enzymes. The mechanism controlling this specificity has not yet been characterized, but interactions between enzymes in lipid biosynthesis have been identified in other organisms. We propose that interactions between Ole1 and lipid biosynthetic enzymes exist in S. cerevisiae, and that these interactions control the incorporation of unsaturated acyl chains into certain lipids and thus regulate the chemical properties of phospholipid and storage lipid. We present herein a set of coimmunoprecipitation and membrane yeast two-hybrid studies that identified novel protein-protein interactions between Ole1 and lipid biosynthetic enzymes. Interactions with the main lysophosphatidic acid acyltransferase in S. cerevisiae, Slc1, and the essential CDP-DAG synthase, Cds1, were also discovered, further determining

the composition of the complex we have called the desaturasome. We have more deeply characterized the interaction between Ole1 and the diacylglycerol acyltransferase Dga1 and performed functional studies that suggest a role for the Ole1-Dga1 interaction in control over lipid droplet formation. Finally, we present evidence for the contention that the interaction between Ole1 and Dga1 controls the subcellular localization of the acyltransferase. This research has revealed the composition of a lipid biosynthetic interaction network that may serve to control the incorporation of unsaturated acyl-CoA into phospholipid and storage lipid and thus regulate the membrane fluidity and generation of lipid droplets from the endoplasmic reticulum. Future work should aim to determine whether the composition of the desaturasome differs between subcellular compartments and if these interactions channel lipid. Investigating the role of this lipid synthesizing supercomplex may have implications in metabolic engineering and treatment of lipid dysregulatory disorders in humans.
A flyby anomaly for Juno? Not from standard physics
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: An empirical formula recently appeared in the literature to explain the observed anomalies of about $Δ\dotρ\approx 1-10$ mm s$^{-1}$ in the geocentric range-rates $\dotρ$ of the Galileo, NEAR and Rosetta spacecraft at some of their past perigee passages along unbound, hyperbolic trajectories. It predicts an anomaly of the order of $6$ mm s$^{-1}$ for the recent flyby of Juno, occurred on 9 October 2013. Data analyses to confirm or disproof it are currently ongoing. We numerically calculate the impact on the geocentric Juno's range rate of some classical and general relativistic dynamical effects which are either unmodelled or mismodelled to a certain level in the software used to process the data. They are: a) The first even zonal harmonic coefficient $J_2$ of the multipolar expansion of the terrestrial gravitational potential causing orbital perturbations both at the $\left.{\rm a}^{'}\right)$ Newtonian ($J_2$) and at the $\left. {\rm a}^{''}\right)$ first post-Newtonian level ($J_2 c^{-2}$) b) The post-Newtonian gravitoelectric (GE) Schwarschild-like component of the Earth's gravitational field c) The post-Newtonian gravitomagnetic (GM) Lense-Thirring effect. The magnitudes of their mismodeled and nominal range-rate signatures are: $\left. {\rm a}^{'}\right)$ $Δ\dotρ_{σ_{J_2}} \approx 1$ $μ$m s$^{-1}$ $\left. {\rm a}^{''}\right)$ $Δ\dotρ_{J_2 c^{-2}} \approx 0.015$ $μ$m s$^{-1}$ b) $Δ\dotρ_{\rm GE} \approx 25$ $μ$m s$^{-1}$ c) $Δ\dotρ_{\rm GM} \approx 0.05$ $μ$m s$^{-1}$. If a flyby anomaly as large as a few mm s$^{-1}$ will be finally found also for Juno, it will not be due to any of these standard gravitational effects. (Abridged)
description: LaTex2e, 1 figure, no tables, 67 references. Accepted for publication in Advances in Space Research
On Adversarial Robustness of Data-Driven State Estimation Techniques
Creators: Afrin, Afia
Publisher: name: University of Alberta Library
Year: 2023

The increasing complexity of electric power grids, owing to the integration of Distributed Energy Resources (DER), electric vehicles, energy storage systems, and advanced metering infrastructure, has stimulated a surge in research on machine learning-based state estimation and control. In this thesis, we examine the robustness of machine learning-based Distribution System State Estimation (DSSE) techniques to a class of adversarial attacks, known as evasion attacks. In these attacks, the attacker manipulates real-time measurements of

sensors installed in the distribution grid by adding carefully crafted perturbations to diminish the accuracy of DSSE. We devise a stealthy attack based on the Fast Gradient Sign Method (FGSM), dubbed Sneaky-FGSM, by analyzing

the statistical properties of real-time measurements and adding perturbations accordingly. Using simulation on a standard test distribution system, we show that this attack would remain largely unidentified, and the error introduced in

the DSSE process could propagate to a voltage control scheme that takes the DSSE result as input. Moreover, we present Targeted-FGSM, a powerful targeted evasion attack strategy that is capable of misleading the state estimator in a certain direction to cause specific power quality issues. Upon analyzing

the covert nature of these attacks, we propose the adoption of the feature attribution-based detection strategy to build robust safeguarding mechanism for DSSE techniques. Our results suggest that incorporating machine learning models in DSSE is a double-edged sword and calls for more research in this area to ensure the robustness of these models to adversarial samples.
Unlocking Insights from Nerve Excitability Testing: Revealing Factors Shaping Nerve Health in Arm and Leg Data
Creators: Du, Siyu
Publisher: name: University of Alberta Library
Year: 2023

Introduction: The nerve excitability test (NET) assesses peripheral nerve properties, informing about nerve membrane integrity, ion channels, and axon function. Interpreting NET results is challenging due to the multitude of indices and their correlations. Exploratory factor analysis (EFA) offers a means to enhance interpretation by uncovering latent factors that link the measured indices.

Objective: We analyzed correlations among 30+ NET indices in upper and lower limb nerves of healthy adults, then used EFA to identify latent constructs. We also explored EFA’s diagnostic potential for amyotrophic lateral sclerosis (ALS).

Methods: Healthy adults underwent NET on median and common fibular nerves. Correlations were assessed within and between nerves. EFA-identified factors were compared across groups and for relations to age and sex.

Results: 201 healthy participants and 15 people diagnosed with ALS were included. Correlations existed within, but not between nerves. EFA identified 4-5 factors per nerve. Factors reflected nerve excitability aspects affected by age and sex. One median nerve factor differed significantly between controls and people living with ALS.

Conclusions: Nerve excitability indices within a nerve are interdependent, but not between nerves. EFA effectively summarized indices and identified a potential ALS diagnostic factor.
Sonnenfleckenzeichnung Nr. 197.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.09.2015, 09:30, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
ABJM amplitudes and the positive orthogonal grassmannian
Creators: name: Huang, Yu-tin
name: Wen, CongKao
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A remarkable connection between perturbative scattering amplitudes of four-dimensional planar SYM, and the stratification of the positive grassmannian, was revealed in the seminal work of Arkani-Hamed et. al. Similar extension for three-dimensional ABJM theory was proposed. Here we establish a direct connection between planar scattering amplitudes of ABJM theory, and singularities there of, to the stratification of the positive orthogonal grassmannian. In particular, scattering processes are constructed through on-shell diagrams, which are simply iterative gluing of the fundamental four-point amplitude. Each diagram is then equivalent to the merging of fundamental OG_2 orthogonal grassmannian to form a larger OG_k, where 2k is the number of external particles. The invariant information that is encoded in each diagram is precisely this stratification. This information can be easily read off via permutation paths of the on-shell diagram, which also can be used to derive a canonical representation of OG_k that manifests the vanishing of consecutive minors as the singularity of all on-shell diagrams. Quite remarkably, for the BCFW recursion representation of the tree-level amplitudes, the on-shell diagram manifests the presence of all physical factorization poles, as well as the cancellation of the spurious poles. After analytically continuing the orthogonal grassmannian to split signature, we reveal that each on-shell diagram in fact resides in the positive cell of the orthogonal grassmannian, where all minors are positive. In this language, the amplitudes of ABJM theory is simply an integral of a product of dlog forms, over the positive orthogonal grassmannian.
description: 52 pages: v2, typos corrected, published version in JHEP
Additional file 1 of Antimicrobial therapy of community-acquired pneumonia during stewardship efforts and a coronavirus pandemic: an observational study
Creators: name: Waagsbø, Bjørn
name: Tranung, Morten
name: Damås, Jan Kristian
name: Heggelund, Lars
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Development of Flux Reconstruction in AD-GPRS
Creators: name: Waziri, Sohail
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: flux reconstruction
AD-GPRS
Multiscale methods

description: Flux reconstruction is an integral component of multiscale methods in simulating multiphase flow and transport in porous media. This report details the algorithmic development and implementation of flux reconstruction for incompressible multiphase flow and transport in SUETRI-B's research simulator, AD-GPRS. Starting with the reduced pressure system, a splitting scheme is proposed. The scheme forms a local Neumann problem for each coarse node by removing coupling terms between coarse cells. Total fluxes computed using multiscale pressure are enforced on the boundaries of the coarse cells and multiscale pressure increment is fixed at the coarse nodes to have well-posed Neumann problems with a unique solution for each. The algorithm is tested on a homogeneous problem to illustrate the various steps of the flux reconstruction algorithm. Permeability field from the top layer of SPE-10 Model 2 is used to test the applicability of the proposed algorithm for highly heterogeneous porous media. Numerical results demonstrate that fine scale divergence is successfully reduced, up to machine precision in most of the spatial domain, from the total flux field when the given flux reconstruction step is implemented between the flow and transport problems. In AD-GPRS, convergence of the outer sequential loop is enforced by running an extra sequential loop and declaring convergence if both the pressure and transport inner loops converge with zero Newton iterations. However, extremely slow sequential convergence issue is faced when the reconstruction step is used during the extra sequential loop. By skipping the reconstruction step during the extra sequential loops, the convergence issue is resolved. Finally, modifications to the proposed algorithm are put forward to extend application to compressible multiphase flow and transport problems in porous media.
Sonnenfleckenzeichnung Nr. 106.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.05.2015, 08:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Thermal Rectification and Negative Differential Thermal Resistance in a driven two segment classical Heisenberg chain
Creators: name: Bagchi, Debarshee
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate thermal transport in a two segment classical Heisenberg spin chain with nearest neighbor interaction and in presence of external magnetic field using computer simulation. The system is thermally driven by heat baths attached at the two ends and transport properties are studied using an energy conserving dynamics. We demonstrate that by properly tuning the parameters thermal rectification can be achieved - the system behaves as a good conductor of heat along one direction but becomes a bad conductor when the thermal gradient is reversed and crucially depends on nonlinearity and spatial asymmetry. Moreover, suitable tuning of the system parameters gives rise to the counterintuitive and technologically important feature known as the negative differential thermal resistance (NDTR). We find that the crucial factor responsible for the emergence of NDTR is a suitable mechanism to impede the current in the bulk of the system.
Schur-Weyl Functors for Super Yangians and Deformed Double Current Algebras
Creators: Jankovic, Peggy M.
Publisher: name: University of Alberta Library
Year: 2023

This thesis establishes new Schur-Weyl functors involving the super Yangian, its deformed double current algebra, the affine super Yangian, and their respective Cherednik algebras.
Sonnenfleckenzeichnung Nr. 228.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.11.2015, 09:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Additional file 2 of Antimicrobial therapy of community-acquired pneumonia during stewardship efforts and a coronavirus pandemic: an observational study
Creators: name: Waagsbø, Bjørn
name: Tranung, Morten
name: Damås, Jan Kristian
name: Heggelund, Lars
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 2
Sonnenfleckenzeichnung Nr. 133.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.06.2015, 07:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Finite difference schemes for stochastic partial differential equations in Sobolev spaces
Creators: name: Gerencsér, Máté
name: Gyöngy, István
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 65M06, 60H15, 65B05

description: We discuss $L_p$-estimates for finite difference schemes approximating parabolic, possibly degenerate, SPDEs, with initial conditions from $W^m_p$ and free terms taking values in $W^m_p.$ Consequences of these estimates include an asymptotic expansion of the error, allowing the acceleration of the approximation by Richardson's method.
description: 22 pages. The final publication is available at Springer via http://dx.doi.org/10.1007/s00245-014-9272-2
Atmospheric escape by magnetically driven wind from gaseous planets
Creators: name: Tanaka, Yuki A.
name: Suzuki, Takeru K.
name: Inutsuka, Shu-ichiro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We calculate the mass loss driven by MHD waves from hot Jupiters by using MHD simulations in one-dimensional flux tubes. If a gaseous planet has magnetic field, MHD waves are excited by turbulence at the surface, dissipate at the upper atmosphere, and drive gas outflows. Our calculation shows that mass loss rates are comparable to the observed mass loss rates of hot Jupiters, therefore it is suggested that gas flow driven by MHD waves can plays an important role in the mass loss from gaseous planets. The mass loss rate varies dramatically with radius and mass of a planet: a gaseous planet with a small mass but with inflated radius produces very large mass loss rate. We also derive an analytical expression for the dependence of mass loss rate on planet radius and mass that is in good agreement with the numerical calculation. The mass loss rate also depends on the amplitude of velocity dispersion at the surface of a planet. Thus we expect to infer the condition of the surface and the internal structure of a gaseous planet from future observations of mass loss rate from various exoplanets.
description: 8 pages, 8 figures, accepted for publication in ApJ
Additional file 1 of Improving VAE based molecular representations for compound property prediction
Creators: name: Tevosyan, Ani
name: Khondkaryan, Lusine
name: Khachatrian, Hrant
name: Tadevosyan, Gohar
name: Apresyan, Lilit
name: Babayan, Nelly
name: Stopper, Helga
name: Navoyan, Zaven
Publisher: name: figshare
Year: 2022
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1: Table S1. Hyperparameters of CVAE (a) and PVAE (b) and size of the models (c) used for pre-training. Table S2. Hyperparameters of the 1D ResNet architecture. Table S3. Performance of various models for predicting downstream tasks (a) logS, (b) logD and (c) logBB. Fig S1. Correlation Heatmaps between descriptors calculated by RDkit package and aqueous solubility log S (a), lipophilicity logD (b) and blood-brain barrier penetration logBB (c) datasets. Fig. S2. Clusters of the molecules from logS dataset in the latent space of a PVAE jointly pre-trained with a MolLogP predictor. Clusters are obtained using K-Means algorithm with varying number of clusters. In all cases there is one outlier cluster, without which there is a correlation between RMSE error of logS prediction and KL divergence between the cluster and the prior distribution.
Sonnenfleckenzeichnung Nr. 182.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.08.2015, 09:15, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Diversification des exportations dans les pays enclavés d'Afrique : gouvernance et/ou géographie
Creators: name: MORTONGAR NGARTORI, Stéphane
name: NKOA, François Colins
Publisher: name: Zenodo
Year: 2024
Subjects: Pays enclavés d'Afrique ; diversification des exportations ; gouvernance ; géographie

description: Cet article a pour objectif d'analyser les effets de la gouvernance et/ou de la géographie sur la diversification des exportations dans les pays enclavés d'Afrique (PEA) en utilisant des données de panel couvrant la période 1996-2021. L'estimation des résultats à l'aide de la méthode Driscoll-Kraay (1998) révèle que toutes les variables de gouvernance ont un effet négatif et significatif sur la diversification des exportations. En revanche, les effets des variables géographiques sont plus nuancés. Ces résultats suggèrent que la gouvernance et la géographie se combinent pour expliquer la faiblesse de la diversification des exportations dans les PEA.

Sur la base de ces conclusions, plusieurs recommandations sont formulées. Les gouvernements des PEA devraient renforcer la gouvernance en adoptant des politiques publiques transparentes et en améliorant l'État de droit, notamment en instaurant un système judiciaire prévisible, impartial et efficace. Cela contribuerait à assurer un bon fonctionnement des marchés et à faciliter les investissements nécessaires à la diversification des exportations. Concernant les défis géographiques, il est essentiel de développer et d'améliorer la qualité des infrastructures tant au niveau national que régional, en coopération avec les pays voisins. Ces améliorations permettraient d'atténuer considérablement les contraintes géographiques pesant sur la diversification des exportations.
Mother Russia: The Politics of Gender and Childbearing in Russian Combat Films
Creators: name: Kline, Jacqueline
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: Natalism
subject: Russian nationalism
subject: War films
subject: World War II
subject: Gender

description: WWII has been harnessed by the Putin government as an internally-facing national myth  -- a story of Russian national becoming, in which women play a narrow and unimportant role. This is accomplished via monuments which shut women out of combat roles, parades which fail to count women among the dead, and films which: 1) Identify childbearing as women’s natural and greatest possible contribution to the war effort; 2) Use rape and sexual violence to convey coercive information about sexual purity and the societal role of women; 3) Portray women and soldiering as incompatible (and thus confine women symbolically to a domestic sphere, at a remove from power and profile); 4) Define Russian womanhood via the persistent use of two filmic tropes: the femme fatale and the sympathetic "good girl."

Russia uses patriotic war films to disseminate WWII as an origin story, and to portray the West as aggressive, threatening, and Russophobic. Russian combat films are widely propagandistic in nature. Situated as they are in a highly controlled creative environment, individual filmmakers have little agency. Their films reflect a top-down political agenda of natalism, anti-Westernism, all-Russianism, and ‘traditional values,’ a euphemism for homophobia and misogyny.
For the Soul of Europe. Jacques Delors's Narrative Battle against Reaganomics
Creators: name: Bitumi, Alessandra
Publisher: name: USAbroad – Journal of American History and Politics
Year: 2020

description: This article discusses Jacques Delors's narrative battle against "Reaganomics." The research is located within the context of postwar transatlantic relations and centers on the analysis on Jacques Delors' s vision and rhetoric. Its main purpose is to examine how the former President of the European Commission has purposely nurtured Europe's exceptionalist self-perception and contributed to shape America's understanding of the Old World, either as model or antithesis. Discussing Delors's language, imagery and stories, penetrating the symbolic relevance, discursive dimension and ideological ambitions of his initiatives is indispensable to comprehend his long-lasting contribution to the formation of an "imagined" European community.
description: USAbroad – Journal of American History and Politics, Vol. 3 No. 1S (2020): Special Issue
Unified Subharmonic Oscillation Conditions for Peak or Average Current Mode Control
Creators: name: Fang, Chung-Chieh
Publisher: name: arXiv
Year: 2013
Subjects: subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This paper is an extension of the author's recent research in which only buck converters were analyzed. Similar analysis can be equally applied to other types of converters. In this paper, a unified model is proposed for buck, boost, and buck-boost converters under peak or average current mode control to predict the occurrence of subharmonic oscillation. Based on the unified model, the associated stability conditions are derived in closed forms. The same stability condition can be applied to buck, boost, and buck-boost converters. Based on the closed-form conditions, the effects of various converter parameters including the compensator poles and zeros on the stability can be clearly seen, and these parameters can be consolidated into a few ones. High-order compensators such as type-II and PI compensators are considered. Some new plots are also proposed for design purpose to avoid the instability. The instability is found to be associated with large crossover frequency. A conservative stability condition, agreed with the past research, is derived. The effect of the voltage loop ripple on the instability is also analyzed.
description: Subharmonic oscillation conditions of a class of nonlinear systems (triangular wave generator with linear feedback) are obtained. Any current-mode-control DC-DC converter can be modeled by such such a nonlinear system and its subharmonic oscillation condition is obtained. This second version adds Nomenclature, parameter lables in figures, and Fig. 24
Collective excitations of a trapped Fermi gas at finite temperature
Creators: name: Korolyuk, A.
name: Kinnunen, J. J.
name: Törmä, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study collective excitations of a trapped Fermi gas at finite temperature using the Bogoliubov-deGennes mean-field theory in conjunction with the generalized random phase approximation. The collective excitations are analyzed through the density response of a monopole excitation. We show the appearance of several modes at the normal fluid - superfluid phase transition temperature: Higgs mode-like pairing amplitude modulations, analogues of the second sound in the trapped gas, and an edge mode that is also the strongest mode in the response.
description: 8 pages, 7 figures