cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The dual properties of chiral and isospin asymmetric dense quark matter formed of two-color quarks
Creators: name: Khunjua, T. G.
name: Klimenko, K. G.
name: Zhokhov, R. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper the phase structure of dense baryon matter composed of $u$ and $d$ quarks with two colors has been investigated in the presence of baryon $μ_B$, isospin $μ_I$ and chiral isospin $μ_{I5}$ chemical potentials in the framework of Nambu--Jona-Lasinio model. In the chiral limit, it has been shown that the duality between phases with spontaneous chiral symmetry breaking and condensation of charged pions, found in the three color case, remains valid in the two color case. In addition, it has been shown that there are two more dualities in the phase diagram in two color case, namely (as in the case with $μ_{I5}=0$), at $μ_{I5}\ne 0$ the general $(μ,μ_I,μ_{I5})$-phase portrait of the model has dual symmetry between the phase with condensation of charged pions and the phase with diquark condensation. This duality stays exact even in the physical point, $m_0\ne 0$. And at $m_0=0$ the $(μ,μ_I,μ_{I5})$-phase portrait becomes even more symmetrical, since dual symmetry between phases with spontaneous chiral symmetry breaking and diquark condensation appears. It is shown that due to the dualities the phase diagram is extremely symmetric and has interlacing structure. One can show that the phase portrait of two-color NJL model can be obtained just by duality properties from the results of investigations of three-color NJL model (it was noticed only after the numerical calculations have been performed). Three-color case shares only one duality of the two color one, and one can only see a facet of this enormously symmetric picture in the case of three colors. Using dualities only, it is possible to show that there are no mixed phases (phases with two non-zero condensates). This prediction of dualities is of great use, because for sure it can be shown by the direct calculations but it would be enormously more complicated and time-consuming numerically.
description: 19 pages, 5 figures, discussions added, accepted to JHEP
A systematic review on effect of sodium-glucose cotransporter-2 inhibitors on the metabolic and endocrinological profile of patients with polycystic ovarian syndrome
Creators: name: Roy, Madhura
name: Parveen, Rizwana
name: Khan, Parvej
name: Majid, Haya
name: Pathak, Mani
name: Saxena, Rajesh
name: Nidhi
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biochemistry
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer

description: Polycystic ovarian syndrome (PCOS) has been a common metabolic and endocrinal disorder, prevalent amongst women belonging to the reproductive age group. The aim of this systematic review was to assess the safety and efficacy profile of sodium-glucose cotransporter 2 (SGLT2) inhibitors (Canagliflozin, Dapagliflozin, Empagliflozin, and Licogliflozin) for the treatment of women suffering from PCOS. A literature search in PubMed, Science Direct, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov was conducted for randomized clinical trials of SGLT-2 inhibitors in PCOS patients by applying predetermined inclusion and exclusion criteria. The articles in English language were included. Four randomized controlled trials including 146 subjects were included in the review. The clinical studies indicated a significant decrease in the levels of total testosterone, free androgen index, total body fat, homeostasis model assessment-estimated insulin resistance (HOMA-IR), body mass index (BMI), dehydroepiandrosterone sulfate (DHEAS) and fasting plasma glucose (FPG). However, no significant difference was reported in levels of sex hormone-binding globulin (SHBG). Overall, there was improvement in metabolic and endocrine profiles, suggesting a potentially beneficial impact of SGLT2 inhibitors in the management of PCOS. There is a requirement for large extensive clinical trials to demonstrate the efficacy of SGLT-2 inhibitors in PCOS patients.
Massive MIMO with Multi-Antenna Users under Jointly Correlated Ricean Fading
Creators: name: Dovelos, Konstantinos
name: Matthaiou, Michail
name: Ngo, Hien Quoc
name: Bellalta, Boris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We study the uplink performance of massive multiple-input multiple-output (MIMO) when users are equipped with multiple antennas. To this end, we consider a generalized channel model that accounts for line-of-sight propagation and spatially correlated multipath fading. Most importantly, we employ the Weichselberger correlation model, which has been shown to alleviate the deficiencies of the popular Kronecker model. The main contribution of this paper is a rigorous closed-form expression for the uplink spectral efficiency using maximum-ratio combining and minimum mean square error channel estimation. Our result is a non-trivial generalization of previous results on massive MIMO with spatially correlated channels, thereby enabling us to have suitable designs for future massive MIMO systems. Numerical simulations corroborate our analysis and provide useful insights on how different propagation conditions affect system performance.
description: Submitted to ICC 2020
Hard-Sphere Fluids in Contact with Curved Substrates
Creators: name: Bryk, P.
name: Roth, R.
name: Mecke, K. R.
name: Dietrich, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The properties of a hard-sphere fluid in contact with hard spherical and cylindrical walls are studied. Rosenfeld's density functional theory (DFT) is applied to determine the density profile and surface tension $γ$ for wide ranges of radii of the curved walls and densities of the hard-sphere fluid. Particular attention is paid to investigate the curvature dependence and the possible existence of a contribution to $γ$ that is proportional to the logarithm of the radius of curvature. Moreover, by treating the curved wall as a second component at infinite dilution we provide an analytical expression for the surface tension of a hard-sphere fluid close to arbitrary hard convex walls. The agreement between the analytical expression and DFT is good. Our results show no signs for the existence of a logarithmic term in the curvature dependence of $γ$.
description: 15 pages, 6 figures
Impact des caractéristiques du sable concassé sur la consistance de MBE
Creators: name: Perrot, Arnaud
name: Ahmat, Abdelkerine Souleymae
name: Ahmat, Abdelkerine Souleymae
name: Rangeard, Damien
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Cet article traite de l’effet de la variabilité des sables concassée sur la consistance de mortiers de béton équivalent. Deux formulations de bases sont testées : la première correspond au mortier contenu dans un béton de référence, la seconde correspond au mortier de béton équivalent de ce même béton. Pour ces formulations, le seuil de cisaillement est mesuré pour deux teneurs en sables concassé (33% et 66%) et 8 sables de différentes provenances. Le seuil de cisaillement est relié aux caractéristiques de formes des sables ainsi qu’à leur distribution granulométrique. Une méthode permettant de prédire la grande variabilité de consistance observée a partir de ces données géométriques est proposée.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Advances in pharmacotherapy for heart failure and reduced ejection fraction: what’s new in 2024?
Creators: name: Ismail, Zahra
name: Aboughdir, Maryam
name: Duric, Bea
name: Kakar, Sahil
name: Chan, Jeffrey Shi Kai
name: Bayatpoor, Yasmin
name: Harky, Amer
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Updated guidelines for heart failure with reduced ejection fraction (HFrEF) and acute decompensation have improved outcomes, but ongoing efforts are focused on uncovering new evidence and developing novel therapies. This review examines the limitations of current treatments and the potential impact of emerging therapies. A literature search focused on studies investigating drugs for HFrEF. We review recent clinical trials and emerging therapies to assess evidence strength, explore guideline updates, and identify strategies to optimize patient outcomes. The HFrEF treatment landscape is rapidly evolving, with advances in therapies like sodium/glucose cotransporter inhibitors and sacubitril-valsartan. Though managing acute decompensated heart failure remains challenging, recent trials suggest improvements in diuretic strategies and anti-inflammatory treatments. Ongoing research is essential for validating these therapies and incorporating them into standard practice.
Valorisation of oyster shell powder in mortars as partial replacement of cement
Creators: name: Badreddine, Dalal
name: Bourdot, Alexandra
name: Maalouf, Joe
name: Rateau, Olivier
name: Abhari, Kamilia
name: Sebaibi, Nassim
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: The reuse of waste materials in concrete has been a major research concern in the past decades. This process has an interesting ecological and economical impact. In this paper, the recycling of shell waste into a filling material in mortars is investigated. Shell-based products have the advantage of being porous; therefore, their use could improve the thermal insulation properties of the concrete. In this paper, The influence of the incorporation of oyster shell powder as a substitution of cement on the mechanical behavior of the mortars is determined. Mortars were made by replacing a part of the Portland cement by shell powder and characterized in terms of mechanical properties. The study revealed that the substitution of cement with oyster shell powder causes a decrease of their mechanical properties. However, it increases the open porosity of the mortars, reducing their thermal conductivity and giving them good insulation properties.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
A quasi-static particle-in-cell algorithm based on an azimuthal Fourier decomposition for highly efficient simulations of plasma-based acceleration: QPAD
Creators: name: Li, Fei
name: An, Weiming
name: Decyk, Viktor K.
name: Xu, Xinlu
name: Hogan, Mark J.
name: Mori, Warren B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The 3D quasi-static particle-in-cell (PIC) algorithm is a very efficient method for modeling short-pulse laser or relativistic charged particle beam-plasma interactions. In this algorithm, the plasma response to a non-evolving laser or particle beam is calculated using Maxwell's equations based on the quasi-static approximate equations that exclude radiation. The plasma fields are then used to advance the laser or beam forward using a large time step. The algorithm is many orders of magnitude faster than a 3D fully explicit relativistic electromagnetic PIC algorithm. It has been shown to be capable to accurately model the evolution of lasers and particle beams in a variety of scenarios. At the same time, an algorithm in which the fields, currents and Maxwell equations are decomposed into azimuthal harmonics has been shown to reduce the complexity of a 3D explicit PIC algorithm to that of a 2D algorithm when the expansion is truncated while maintaining accuracy for problems with near azimuthal symmetry. This hybrid algorithm uses a PIC description in r-z and a gridless description in $ϕ$. We describe a novel method that combines the quasi-static and hybrid PIC methods. This algorithm expands the fields, charge and current density into azimuthal harmonics. A set of the quasi-static field equations are derived for each harmonic. The complex amplitudes of the fields are then solved using the finite difference method. The beam and plasma particles are advanced in Cartesian coordinates using the total fields. Details on how this algorithm was implemented using a similar workflow to an existing quasi-static code, QuickPIC, are presented. The new code is called QPAD for QuickPIC with Azimuthal Decomposition. Benchmarks and comparisons between a fully 3D explicit PIC code, a full 3D quasi-static code, and the new quasi-static PIC code with azimuthal decomposition are also presented.
title: Modelling the ultraviolet environment at the surface of Mars and design of the Beagle 2 UV sensor
Creators: name: Patel, Manish R.
Publisher: name: The Open University
Year: 2003

description: This thesis describes a multi-layer radiative transfer UV model which was used to aid in the design of the UV sensor on Beagle 2, which will soon provide the first ever in situ measurement of UV flux at the martian surface. The model uses the delta-Eddington approximation for diffuse flux and new low temperature gas absorption cross-sections and aerosol optical properties.

Dust, H2O clouds and morning fogs are found to modify the martian surface UV spectrum. Dust storms have been shown to attenuate the surface UV flux by more than an order of magnitude, though some UV persists even at extremely high optical depths. The seasonal variation of surface UV irradiance was found to produce maximum exposure areas highly dependent upon dust activity over the martian year. Dust activity is also shown to distort the annual latitudinal dose, with high dust loading in the southern hemisphere resulting in a higher annual dose than in the north.

The introduction of O3 abundances of 1.64 x 1017cm-2 into the model resulted in only partial protection for micro-organisms, since wavelengths shorter than 230 nm still penetrate to the surface. DNA-weighting of a martian UV spectrum shows the surface UV environment to be 103 times more damaging than on Earth. UV detection signatures of atmospheric phenomena and anticipated events for the case of Beagle 2 are presented: a dust devil encounter creates a double minimum profile in the UV flux, and solar eclipses by Phobos produce a single minimum. Clouds increase the diffuse/direct UV ratio, and fogs create a distinct dip in the morning profile when normalised to clear days.
Application des lois de similitude à la caractérisation expérimentale et numérique du comportement des assemblages de bâtiments bois
Creators: name: Sousseau, Yann
name: ELACHACHI, Sidi Mohammed
name: Chaplain, Myriam
name: Faye, Carole
name: Catterou, Thomas
name: Garcia, Patrice
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: L’expérience est un moyen pertinent pour appréhender le comportement des bâtiments en bois de grande hauteur, mais les essais sur une structure à taille réelle sont complexes et coûteux à réaliser. Ainsi, la solution proposée consiste à tester une maquette représentative réduite, dont la conception est basée sur une loi de similitude. Ensuite, à partir du comportement observé sur la maquette, la loi de similitude permet d’en déduire celui de la structure à l’échelle 1. Une loi de similitude a été constituée pour les assemblages d’une construction bois. Il a été constaté que les coefficients de similitude obtenus expérimentalement et numériquement (sur le comportement des assemblages) étaient différents de ceux attendus théoriquement. Cela s’explique, en partie, par le fait que certaines conditions de similitude sur la maquette ne sont pas satisfaites pour des raisons pratiques. Une adaptation des lois de similitude pour intégrer ces situations doit être réalisée.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Study of mechanical properties and microstructure of mortars based on oyster shell powder
Creators: name: Bourdot, Alexandra
name: Badreddine, Dalal
name: Lackache, Yahia
name: Rateau, Olivier
name: Honorio, Tulio
name: Sebaibi, Nassim
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: This paper aims at valorise oyster shell co-products in mortars. Oyster shell are calcareous porous materials. Consequently, their use could improve the thermal insulation properties of the concrete. In order to qualify the impact of oyster shell on mortar properties, the influence of the incorporation of oyster shell powder (OS) as a substitution of sand was studied. Mortars made by replacing a part of the sand (0 – 30 – 60 %wt) by shell powder were characterized in terms of mechanical properties and microstructure. The study revealed that the substitution of sand with OS induce a decrease of their mechanical properties. This effect can be explain by higher porosity of 56% increase with 60% OS substitution compared to the reference. Open porosity measurements are confirmed by the reduction of the wave velocity by ultrasonic measurement and microscopic observations revealing smaller pores for shell based materials.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
Additional file 3 of Using digital tools in the recruitment and retention in randomised controlled trials: survey of UK Clinical Trial Units and a qualitative study
Creators: name: Blatch-Jones, Amanda
name: Nuttall, Jacqueline
name: Bull, Abby
name: Worswick, Louise
name: Mullee, Mark
name: Peveler, Robert
name: Falk, Stephen
name: Tape, Neil
name: Hinks, Jeremy
name: Athene J. Lane
name: Wyatt, Jeremy C.
name: Griffiths, Gareth
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 3. Qualitative interview theoretical framework for the interviews.
Advances in pharmacotherapy for heart failure and reduced ejection fraction: what’s new in 2024?
Creators: name: Ismail, Zahra
name: Aboughdir, Maryam
name: Duric, Bea
name: Kaka, Sahil
name: Chan, Jeffrey Shi Kai
name: Bayatpoor, Yasmin
name: Harky, Amer
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: The updated guidelines on the pillars for heart failure with reduced ejection fraction (HFrEF) and acute decompensation improved patient outcomes, but continuous efforts are made to uncover new evidence and develop novel treatments. This review aims to examine limitations of current therapies and the potential impact of emerging treatments. The literature search was conducted focusing on studies that investigated drugs for treating patients with HFrEF. We examine recent clinical trials and emerging therapies to provide insights into potential treatments which may reshape the management of HFrEF. This review aims to highlight the strength of evidence, assess whether guideline updates are warranted, and explore how best to optimize and enhance patient outcomes. The treatment landscape for HFrEF is swiftly advancing, with notable progress in both well-established and novel therapies such as sodium/glucose cotransporter 1 and 2 inhibitors and sacubitril-valsartan. Despite the inherent challenges of managing acute decompensated heart failure, recent clinical trials highlight the potential of refining diuretic strategies and exploring anti-inflammatory treatments. These developments underscore a dynamic field committed to optimizing patient outcomes. While regulatory hurdles and safety concerns remain, ongoing research and comprehensive clinical trials are crucial for validating these emerging therapies and integrating them into standard practice.
Excitations in photoactive molecules from quantum Monte Carlo
Creators: name: Schautz, Friedemann
name: Buda, Francesco
name: Filippi, Claudia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Despite significant advances in electronic structure methods for the treatment of excited states, attaining an accurate description of the photoinduced processes in photoactive biomolecules is proving very difficult. For the prototypical photosensitive molecules, formaldimine, formaldehyde and a minimal protonated Schiff base model of the retinal chromophore, we investigate the performance of various approaches generally considered promising for the computation of excited potential energy surfaces. We show that quantum Monte Carlo can accurately estimate the excitation energies of the studied systems if one constructs carefully the trial wave function, including in most cases the reoptimization of its determinantal part within quantum Monte Carlo. While time-dependent density functional theory and quantum Monte Carlo are generally in reasonable agreement, they yield a qualitatively different description of the isomerization of the Schiff base model. Finally, we find that the restricted open shell Kohn-Sham method is at variance with quantum Monte Carlo in estimating the lowest-singlet excited state potential energy surface for low-symmetry molecular structures.
description: 10 pages, 6 figures
Impacts of Selected Technologies Refined under NATP
Creators: name: Mruthyunjaya
name: Pal, Suresh
name: Pandey, L. M.
name: Jha, A. K.
name: Mruthyunjaya
name: Pal, Suresh
name: Pandey, L. M.
name: Jha, A. K.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Agricultural and Food Policy
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agricultural technology
subject: research investment
subject: economic surplus
subject: research impact
subject: NATP

description: Efficiency impacts of research investments in a few projects under the National Agricultural Technology Project (NATP) have been estimated using the economic surplus approach. The model has been applied in a closed economy framework with the assumption of no spillover effects. The quantified economic pay-offs of these impacts in terms of NPV, IRR, and benefit-cost ratio for most of the technologies have been found quite attractive. Besides, there are indications of impacts on sustainability of the production systems. It has been concluded that returns to investment on dissemination of available technologies are enormous and therefore should receive immediate attention.
Study of the Bipolar Nebula IRAS 19312+1950. I. Mapping Observations
Creators: name: Nakashima, J.
name: Deguchi, S.
name: Kuno, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: IRAS 19312+1950 is an SiO maser source that exhibits a prominent bipolar nebulosity. Mapping observations of this object were made in the CO J=1--0, 13CO J=1--0, C18O J=1--0, CS J=2--1, and HCN J=1--0 lines and in the 150 GHz continuum band. Near-infrared imaging observations were also made in the J, H, and K-bands. The line profiles of the 12CO and HCN spectra consist of a weak broad component with a line width of about 50 km/s and a strong narrow component of the width of about 3 km/s. The profiles of the 13CO, C18O, and CS lines have only the narrow component. Both of the components have an intensity peak at the IRAS position. The narrow component was clearly resolved with a 15'' telescope beam. The spectral energy distribution of this object exhibits a doubly peaked profile between 1 and 25 micron. The 150 GHz continuum flux density was found to be 0.07 Jy, which is consistent with the flux density predicted by the expanding envelope model with a mass loss rate of ~10^{-4} M_sun/y at a distance of 2.5 kpc. We argue that the broad component originates from the expanding envelope of this object, and that the hot dust cloud, which is the source of the narrow component, is also physically associated with this object. Though the present observations do not preclude the possibility of a young stellar object, we argue that it is less plausible. We conclude that IRAS 19312+1950 is an AGB/post-AGB star that is evolved from a massive progenitor.
description: 13 pages, 6 figures (jpg), high resolution figures available as no598 in http://www.nro.nao.ac.jp/library/report/list.html. PASJ, 56 No. 1 in press
The left-right supersymmetric option at a high-energy upgrade of the LHC
Creators: name: Frank, Mariana
name: Fuks, Benjamin
name: Huitu, Katri
name: Mondal, Subhadeep
name: Rai, Santosh Kumar
name: Waltari, Harri
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility that a minimal realization of left-right supersymmetry can be reachable at a high-energy upgrade of the LHC, expected to operate at a center-of-mass energy of 27 TeV. This minimal scenario has a relatively light $SU(2)_R$ doubly-charged Higgs boson, which could decay dominantly into tau-lepton pairs. We explore the associated signals comprised of at least three hadronically-decaying taus, or with at least two hadronic taus and one same-sign-same-flavor charged lepton pair. Our analysis shows that the former signature is challenging to use for getting handles on the signal due to the large corresponding background, and that the latter one can lead to a handful of new physics events in an almost background-free environment. We however find that a signal comprised of three hadronically-decaying tau leptons is likely to be observed at a low luminosity of proton-proton collisions at a 27 TeV upgrade of the LHC.
description: Accepted for publication in Phys.Rev.D
Efficiency of Public-Funded Crop Sciences Research in India
Creators: name: Jha, A. K.
name: Pal, Suresh
name: Joshi, P. K.
name: Jha, A. K.
name: Pal, Suresh
name: Joshi, P. K.
Publisher: name: Unknown
Year: 2004
Subjects: Crop Production/Industries
Production Economics

description: The efficiency of crop sciences research in India has been estimated and its determinants have been evaluated using stochastic frontier production function. The results have shown a considerable scope in improving the efficiency of crop sciences research as the existing efficiency is less by 33 per cent than the achievable efficiency. The research productivity measured in terms of annual number of publications per scientist is less than one. Restructuring the institutes with adequate financial (operating contingency) support, correcting the cadre strength in favour of young scientists, and better opportunities for interaction would enhance the research efficiency.
Paille porteuse : Etat de l’art et études expérimentales préliminaires
Creators: name: Lossignol, Julie
name: Quirant, Jérôme
name: Averseng, Julien
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: La paille porteuse est une technique de construction qui est apparue avec l’invention de la botteleuse aux Etats-Unis à la fin du XIXème siècle. Cependant si la paille en tant qu’isolant thermique et acoustique est reconnue (RFCP 2018), elle a été peu explorée ou optimisée en tant qu’élément porteur concernant les processus de mise en œuvre ou l’évaluation de son comportement mécanique. Ainsi, le but ici sera de restituer une synthèse bibliographique afin de proposer des améliorations des techniques de mise en œuvre et de développer des lois de comportement à partir des résultats d’essais mécaniques ainsi que des modèles numériques. Les résultats obtenus permettront de qualifier la paille porteuse en tant que solution constructive écologique, viable et durable.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
An Investigation into Generating Renewable Energy for New Student Union Building Using Solar Cells
Creators: name: Rizwan, Muhammad Usman
name: Haddadi, Malihsa
name: Wirasaputra, Vincent
name: Esposito, Chris
Publisher: name: The University of British Columbia
Year: 2011

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
A Systematic Review on Effect of Sodium-Glucose cotransporter-2 inhibitors on the metabolic and endocrinological profile of patients with Polycystic Ovarian Syndrome
Creators: name: Roy, Madhura
name: Parveen, Rizwana
name: Khan, Parvej
name: Majid, Haya
name: Pathak, Mani
name: Saxena, Rajesh
name: Nidhi
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biochemistry
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer

description: Polycystic ovarian syndrome (PCOS) has been a common metabolic and endocrinal disorder, prevalent amongst women belonging to the reproductive age group. The aim of this systematic review was to assess the safety and efficacy profile of sodium-glucose cotransporter 2 (SGLT2) inhibitors (Canagliflozin, Dapagliflozin, Empagliflozin, and Licogliflozin) for the treatment of women suffering from PCOS. A literature search in PubMed, Science Direct, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov was conducted for randomized clinical trials of SGLT-2 inhibitors in PCOS patients by applying predetermined inclusion and exclusion criteria. The articles in English language were included. Four randomized controlled trials including 146 subjects were included in the review. The clinical studies indicated a significant decrease in the levels of total testosterone, free androgen index, total body fat, homeostasis model assessment-estimated insulin resistance (HOMA-IR), body mass index (BMI), dehydroepiandrosterone sulfate (DHEAS) and fasting plasma glucose (FPG). However, no significant difference was reported in levels of sex hormone-binding globulin (SHBG). Overall, there was improvement in metabolic and endocrine profiles, suggesting a potentially beneficial impact of SGLT2 inhibitors in the management of PCOS. There is a requirement for large extensive clinical trials to demonstrate the efficacy of SGLT-2 inhibitors in PCOS patients.
Additional file 2 of Using digital tools in the recruitment and retention in randomised controlled trials: survey of UK Clinical Trial Units and a qualitative study
Creators: name: Blatch-Jones, Amanda
name: Nuttall, Jacqueline
name: Bull, Abby
name: Worswick, Louise
name: Mullee, Mark
name: Peveler, Robert
name: Falk, Stephen
name: Tape, Neil
name: Hinks, Jeremy
name: Athene J. Lane
name: Wyatt, Jeremy C.
name: Griffiths, Gareth
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 2. List of questions used in the UKCRC CTU survey.
Machine Learning of Mechanical Properties of Steels
Creators: name: Xiong, Jie
name: Zhang, Tong-Yi
name: Shi, San-Qiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanical properties are essential for structural materials. The analyzed 360 data on four mechanical properties of steels, viz. fatigue strength, tensile strength, fracture strength, and hardness, are selected from the NIMS database, including carbon steels, and low-alloy steels. Five machine learning algorithms were applied on the 360 data to predict the mechanical properties and random forest regression illustrates the best performance. The feature selection was conducted by random forest and symbolic regressions, leading to the four most important features of tempering temperature, and alloying elements of carbon, chromium, and molybdenum to the mechanical properties of steels. Besides, mathematic expressions were generated via symbolic regression, and the expressions explicitly predict how each of the four mechanical properties varies quantitatively with the four most important features. The present work demonstrates the great potential of symbolic regression in the discovery of novel advanced materials.
Infinite dimensional Grassmannians
Creators: name: Abbondandolo, Alberto
name: Majer, Pietro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Topology (math.AT)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47A53; 55R10

description: We study the analytic and homotopy properties of some infinite dimensional Grassmannians, useful for developing a Morse theory for infinite dimensional manifolds. We study the space of Fredholm pairs of a Hilbert space, we determine its homotopy type, and we define a determinant bundle over it. We study the space of compact perturbations of a given closed linear subspace, and the related concept of essential Grassmannian.
description: 35 pages. Final version. Part on determinant bundles expanded
Intensity of water conservation technology adoptions in Nepal
Creators: name: Bhatta, Dependra
name: Paudel, Krishna P.
name: Dhakal, Rajan
name: Liu, Kai
name: Bhatta, Dependra
name: Paudel, Krishna P.
name: Dhakal, Rajan
name: Liu, Kai
Publisher: name: Unknown
Year: 2018
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Agriculture, Count Data Model, Poisson Quasi Likelihood, Semiparametric model

description: Water conservation technology is widely used in developing countries to avoid the adverse effects of water scarcity. Data obtained from a survey of 385 Nepalese households were analyzed by using parametric, semiparametric and nonparametric models. We used a Poisson quasi-likelihood method to estimate a parametric model, and local-linear least squares cross-validation bandwidth selection method for a semiparametric model. A test developed by Hsiao et al. (2007) was employed to compare parametric model to semiparametric model, and we found the semiparametric model more appropriate than a parametric model in the analysis of the intensity of water conservation technology. Semiparametric model allows the entry of variables parametrically and nonparametrically to describe linear and nonlinear effects. Results show that the farmers having agriculture as the main source of income and sufficient food availability in the previous year are positively and significantly associated with the intensity of technology adoption. These results signify the needs for appropriate policies and programs to enhance farm production and income that would encourage farmers to adopt water conservation technologies for sustainable agriculture.
Monte-Carlo simulations of the expected imaging performance of the EXIST high-energy telescope
Creators: name: Vadawale, S. V.
name: Hong, J.
name: Grindlay, J. E.
name: Skinner, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: EXIST is being studied as the Black Hole Finder Probe, one of the 3 Einstein Probe missions under NASA's Beyond Einstein program. The major science goals for EXIST include highly sensitive full-sky hard X-ray survey in a very wide energy band of 5-600 keV. The scientific requirements of wide energy band (10-600 keV for the High Energy Telescope considered for EXIST) and large field of view (approximately 130 deg x 60 deg in the current design, incorporating an array of 18 contiguous very large area coded aperture telescopes) presents significant imaging challenges. The requirement of achieving high imaging sensitivity puts stringent limits on the uniformity and knowledge of systematics for the detector plane. In order to accomplish the ambitious scientific requirements of EXIST, it is necessary to implement many novel techniques. Here we present the initial results of our extensive Monte-Carlo simulations of coded mask imaging for EXIST to estimate the performance degradation due to various factors affecting the imaging such as the non-ideal detector plane and bright partially coded sources.
description: 12 pages, 12 figures, 1 table, appears in SPIE 2005 proceedings (5900: Optics for EUV, X-ray, and Gamma-ray Astronomy II)
Adiabatic quantum pumping in buckled graphene nanoribbon driven by a kink
Creators: name: Suszalski, Dominik
name: Rycerz, Adam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a new type of quantum pump in buckled graphene nanoribbon, adiabatically driven by a kink moving along the ribbon. From a practical point of view, pumps with moving scatterers present advantages as compared to gate-driven pumps, like enhanced charge transfer per cycle per channel. The kink geometry is simplified by truncating the spatial arrangement of carbon atoms with the classical $ϕ^4$ model solution, including a width renormalization following from the Su-Schrieffer-Heeger model for carbon nanostructures. We demonstrate numerically, as a proof of concept, that for moderate deformations a stationary kink at the ribbon center may block the current driven by the external voltage bias. In the absence of a bias, a moving kink leads to highly-effective pump effect, with a charge per unit cycle dependent on the gate voltage.
description: 7 pages, 3 figures. Presented at 45. Zjazd Fizyk\'ow Polskich, Krak\'ow 13-18 wrze\'snia 2019
A Note on Hamilton-Jacobi Formalism and D-brane Effective Actions
Creators: name: Sato, Matsuo
name: Tsuchiya, Asato
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We first review the canonical formalism with general space-like hypersurfaces developed by Dirac by rederiving the Hamilton-Jacobi equations which are satisfied by on-shell actions defined on such hypersurfaces. We compare the case of gravitational systems with that of the flat space. Next, we remark as a supplement to our previous results that the effective actions of D-brane and M-brane given by arbitrary embedding functions are on-shell actions of supergravities.
description: 12 pages, 1 figure, section 3 is extended, references added, published version
Influence de la terre sur les propriétés physiques de briques de terre crue
Creators: name: Maachi, Abdelhak
name: DEVILLERS, Philippe
name: RABARY, Jonathan
name: CORN, Stéphane
name: SALGUES, Marie
name: APRIN, Laurent
name: SONNIER, Rodolphe
name: GARCIA-DIAZ, Éric
Publisher: name: Academic Journal of Civil Engineering
Year: 2020

description: Dans un premier temps, la nature pétrographique et les propriétés physiques de deux terres à bâtir seront caractérisées (analyse granulométrique, densité spécifique, limite de liquidité et indice de plasticité). Les propriétés physiques de deux briques de terre crue (un adobe et une brique de terre compressée stabilisée à la chaux) fabriquées à partir de ces deux terres seront ensuite mesurées (masse volumique apparente, porosité, conductivité thermique, coefficient d’absorption d’eau, isotherme de sorption, comportement au feu). Les résultats obtenus montrent que les propriétés physiques qui sont le plus influencées par la nature de la terre utilisée sont la rétention d’eau et le comportement au feu.
description: Academic Journal of Civil Engineering, Vol 38 No 1 (2020): Special Issue - RUGC 2020 Marrakech
How far actually is the Galactic Center IRS 13E3 from Sagittarius A$^{\ast}$?
Creators: name: Tsuboi, Masato
name: Kitamura, Yoshimi
name: Tsutsumi, Takahiro
name: Miyawaki, Ryosuke
name: Miyoshi, Makoto
name: Miyazaki, Atsushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Galactic Center IRS 13E cluster is a very intriguing IR object located at $\sim0.13$ pc from Sagittarius A$^\ast$ (Sgr A$^\ast$) in projection distance. There are both arguments for and against the hypothesis that a dark mass like an intermediate mass black hole (IMBH) exists in the cluster. Recently we have detected the rotating ionized gas ring around IRS 13E3, which belongs to the cluster, in the H30$α$ recombination line using ALMA. The enclosed mass is derived to be $M_{\mathrm{encl.}}\simeq2\times10^4$ $M_\odot$, which agrees with an IMBH and is barely less than the astrometric upper limit mass of the IMBH around Sgr A$^\ast$. Because the limit mass depends on the true three-deminsional (3D) distance from Sgr A$^\ast$, it is very important to determine it observationally. However, the 3D distance is indefinite because it is hard to determine the line-of-sight (LOS) distance by usual methods. We would attempt to estimate the LOS distance by spectroscopic informations. The CH$_3$OH molecule is easily destroyed by cosmic ray around Sgr A$^{\ast}$. However, we detected a highly excited CH$_3$OH emission line in the ionized gas stream associated with IRS 13E3. This indicates that IRS 13E3 is located at $r\gtrsim 0.4$ pc from Sgr A$^{\ast}$.
description: 9 pages, 2 figures, 1 table, Accepted for publication in PASJ
title: Development and use of "stress" animal models of depression to study the mode of action of antidepressant drug treatments
Creators: name: Bate, Elizabeth
Publisher: name: The Open University
Year: 2003

description: The effect of the exposure of male BALB/c mice to sensory stimuli from male Brown Norway rats was assessed using plasma corticosterone (CORT) concentrations and glucocorticoid receptor (GR) binding in the cortex, and a number of behavioural measures (sucrose preference, food intake and elevated plus-maze tests). Following 8 weeks of exposure, stressed mice showed a 97% increase in plasma CORT concentrations but GR binding, sucrose preference, food intake, and the elevated plus maze (EPM) measurements were unaltered. In conclusion, this study suggests that chronic exposure of mice to sensory stimuli from rats increases stress hormones and may provide a natural predator model of stress. The effects of acute and chronic restraint stress with the administration of paroxetine (10 mg/kg p. o.), a selective serotonin reuptake inhibitor (SSRI), on the hypothalamic-pituitary-adrenocortical (HPA) axis were studied in adult male Wistar rats. Three weeks of restraint stress induced a 700% increase in plasma CORT and a 100% increase in adrenocorticotrophin (ACTH) concentration, whilst decreasing GR binding in the cortex by 34% and hippocampus by 30%, and a 24% decrease in food intake. Administration of paroxetine induced a 166% increase in plasma CORT concentration, whilst decreasing GR mRNA levels by 45% in the cortex and food intake by 25%. Paroxetine administration decreased the stress-induced plasma CORT by 80% but enhanced ACTH concentration by 78%, partially reversing the stress-induced downregulation of GR in the cortex by 34%, increasing GR mRNA in the cortex by 58%, reducing BDNF mRNA in the cortex by 30%, and reversed the stress-induced decrease in food intake by 22%. Taken together, these results suggest that restraint stress provoked a stress response, which remained elevated after three weeks, and feedback inhibition on the HPA axis following stress was facilitated by treatment with paroxetine.
Optimal periodic dividend strategies for spectrally positive Lévy risk processes with fixed transaction costs
Creators: name: Avanzi, Benjamin
name: Lau, Hayden
name: Wong, Bernard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: Risk Management (q-fin.RM)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60G51, 93E20, 91B30

description: We consider the general class of spectrally positive Lévy risk processes, which are appropriate for businesses with continuous expenses and lump sum gains whose timing and sizes are stochastic. Motivated by the fact that dividends cannot be paid at any time in real life, we study $\textit{periodic}$ dividend strategies whereby dividend decisions are made according to a separate arrival process. In this paper, we investigate the impact of fixed transaction costs on the optimal periodic dividend strategy, and show that a periodic $(b_u,b_l)$ strategy is optimal when decision times arrive according to an independent Poisson process. Such a strategy leads to lump sum dividends that bring the surplus back to $b_l$ as long as it is no less than $b_u$ at a dividend decision time. The expected present value of dividends (net of transaction costs) is provided explicitly with the help of scale functions. Results are illustrated.
description: Accepted for publication in Insurance: Mathematics and Economics
Distribution of time-bin qubits over 50 km of optical fiber
Creators: name: Marcikic, I.
name: de Riedmatten, H.
name: Tittel, W.
name: Zbinden, H.
name: Legre, M.
name: Gisin, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report experimental distribution of time-bin entangled qubits over 50 km of optical fibers. Using actively stabilized preparation and measurement devices we demonstrate violation of the CHSH Bell inequality by more than 15 standard deviations without removing the detector noise. In addition we report a proof of principle experiment of quantum key distribution over 50 km of optical fibers using entangled photon.
description: 4 pages, 4 figures
Directed transport of suspended ferromagnetic nanoparticles under both gradient and uniform magnetic fields
Creators: name: Denisov, S. I.
name: Lyutyy, T. V.
name: Pavlyuk, M. O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The suspended ferromagnetic particles subjected to the gradient and uniform magnetic fields experience both the translational force generated by the field gradient and the rotational torque generated by the fields strengths. Although the uniform field does not contribute to the force, it nevertheless influences the translational motion of these particles. This occurs because the translational force depends on the direction of the particle magnetization, which in turn depends on the fields strengths. To study this influence, a minimal set of equations describing the coupled translational and rotational motions of nanosized ferromagnetic particles is introduced and solved in the low Reynolds number approximation. Trajectory analysis reveals that, depending on the initial positions of nanoparticles, there exist four regimes of their directed transport. The intervals of initial positions that correspond to different dynamical regimes are determined, their dependence on the uniform magnetic field is established, and strong impact of this field on the directed transport is demonstrated. The ability and efficiency of the uniform magnetic field to control the separation of suspended ferromagnetic nanoparticles is also discussed.
description: 14 pages, 5 figures